JP5995185B2 - Stopcock device with pressure adjusting function, faucet device and hot-water mixed faucet device having the same - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a stop cock device with a pressure control function, and a faucet device and a hot water / mixture faucet device including the same, and in particular, switches a water passage to a water stop state or a water passage state, and flows out water. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stop cock device with a pressure adjusting function for adjusting pressure, and a faucet device and a hot water / water mixture faucet device having the same.

  Conventionally, hot water used in faucet devices, especially in bathrooms, bathrooms, kitchens, etc., is mixed with hot water supplied from a hot water supply source of a hot water supply system such as an electric water heater, and the temperature is controlled by a temperature control device such as a thermostat. Adding a pressure-regulating function to the stop cock provided in the water passage on the upstream side of the hot-water mixed faucet device that switches the hot water adjusted to the water discharge state or the water stop state by opening and closing the on-off valve It is possible to reduce the burden of adjusting the amount of water, and to stabilize the temperature of hot water discharged from the hot-water mixing faucet device by stabilizing the pressure of water flowing out from the water passage to the hot-water mixing faucet device There are known advantages such as the ability to reduce noise caused by a water hammer phenomenon in a water passage.

  Moreover, as a faucet device incorporating a conventional stopcock and a pressure regulating valve, for example, as described in Patent Document 1, a faucet leg portion that forms a water passage on the upstream side of the main body of the tap water mixing faucet device A water-stopper and a pressure-regulating valve that are separable from each other are incorporated, and a pressure-regulating inflow passage is formed between the holding member of the pressure-regulating valve and the pressure-regulating valve. It is known that the pressure receiving surface receives the water pressure in the pressure adjusting inflow passage and the pressure adjusting valve is moved.

  Furthermore, as a faucet device incorporating a conventional stop cock and a pressure regulating valve, for example, as described in Patent Document 2, a pressure reducing valve is provided in a stop cock installed in front of a meter of an underground water supply pipe. When the pressure in the secondary chamber into which the secondary water, which is arranged in parallel and passes between the pressure adjustment packing and the pressure adjustment valve seat, increases, the pressure adjustment packing overcomes the force of the pressure adjustment spring toward the pressure adjustment valve seat. What is pressed is known.

  Patent Document 3 describes a device in which the opening / closing valve itself for opening and closing the gas passage of the hydrogen gas supply device has the function of a pressure regulating valve. In this device, the gas passage through which hydrogen gas passes is provided at the inlet. A pressure receiving chamber is formed on the downstream side of the pressure reducing valve chamber, extending from the passage to the pressure reducing valve chamber around the pressure reducing member facing the front of the gas passage. When the pressure in the pressure receiving chamber rises, the pressure reducing member at the tip of the piston member is pressed against the spring pressure of the valve opening spring and approaches the pressure reducing valve seat. As a result, the inflow of hydrogen gas from the opposite inlet passage is restricted, and the pressure of the hydrogen gas in the pressure receiving chamber is reduced.

JP 2006-226497 A JP 2001-65708 A JP 2008-151157 A

  However, in the faucet device described in Patent Document 1 described above, when the pressure of the secondary side water passage suddenly increases, the pressure receiving surface comes into contact with water from the secondary side water passage through the pressure adjusting inflow passage. There is a problem that the pressure receiving surface of the pressure regulating valve is suddenly received by the flow into the space, the pressure regulating valve body operates at a stroke, the pressure regulating valve body moves excessively, and collides with the valve seat of the intermediate member to generate a collision sound. is there.

  Further, in the faucet device described in Patent Document 2 described above, when the pressure in the secondary chamber suddenly rises, the pressure regulation packing is suddenly pressed against the pressure regulation valve seat by the secondary pressure, and the pressure regulation packing. Is excessively moved and collides with the pressure regulating valve seat to cause a collision sound.

  Furthermore, in the apparatus described in Patent Document 3 described above, when the pressure in the pressure receiving chamber suddenly increases, the pressure reducing member is suddenly received, the pressure reducing member operates at once, and the pressure reducing member moves excessively. There is a problem that a collision sound is generated by colliding with the pressure reducing valve seat.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and suppresses the rapid operation of the pressure regulating valve body, so that the pressure regulating valve body moves excessively and the stop cock device body. It is an object of the present invention to provide a water stop cock device with a pressure adjusting function capable of suppressing the occurrence of a collision sound due to a collision, and a water faucet device and a hot and cold water mixing faucet device provided with the same.

To achieve the above object, the present invention is switched to the water stop state or water flow state water passage between the secondary side water passage of the primary flow passage and the water discharge side of the water supply source side, secondary A faucet device with a pressure control function that adjusts the pressure of water flowing into the side waterway, and is attached to the water faucet device body in which the water passage is formed and movably attached to the water faucet device body A pressure regulating valve member including a pressure regulating valve body and a pressure regulating spring connected to the pressure regulating valve body, the pressure regulating valve body from a pressure receiving portion side water passage communicating with the secondary side water passage. A pressure receiving member that receives water pressure, and the pressure regulating valve body moves so as to balance the urging force of the pressure regulating spring and the pressure applied to the pressure receiving part; and the axis of the pressure regulating valve body surrounds the outer periphery of the pressure regulating valve body A guide member that guides the movement in the direction, the guide member having a recessed portion whose inner periphery is recessed, A arranged annular member, more recesses and the annular member, passing water can flow paths between the secondary-side flow passage and the pressure receiving portion side water passage is formed in a part of the entire circumference, whereby When the water pressure of the secondary side water passage is increased, an increase in the water pressure received by the pressure receiving portion via the flow passage capable of water passage is suppressed .
In the thus constructed present invention, by an annular member disposed in the recess of the guide member, the recess and more annular members, the pressure receiving portion through which the secondary side water passage and the pressure receiving portion of the water discharge side is subjected to water pressure A flow path capable of passing water between the water channel and the water channel is formed in a part of the entire circumference , whereby the water pressure in the secondary side water channel increases and water flows from the secondary side water channel to the pressure receiving part. When the water flows into the pressure-receiving-part-side water passage that applies pressure , water receives resistance to pass through the flow path formed in a part of the entire circumference, and the pressure-receiving part is The increase in water pressure is suppressed. Accordingly, the rapid movement of water is suppressed, the water suddenly flows into the pressure receiving part side water passage that applies pressure to the pressure receiving part, and the pressure receiving part of the pressure regulating valve body receives the pressure of the water, and the pressure regulating valve It is possible to suppress the body from abruptly operating, and to suppress the pressure regulating valve body from moving excessively and colliding with the water faucet device body to generate a collision sound.
Further, since the annular member is disposed in the recess of the guide member, the annular member receives and receives water pressure that is not uniform over the entire circumference when the water passes through the flow path formed in a part of the entire circumference. Since the pressure is transmitted to the guide member and not to the pressure regulating valve body, the pressure regulating valve body receives a force from the annular member, the pressure regulating valve body tilts and causes vibration when the pressure regulating valve body slides. Adverse effects can be suppressed.

In the present invention, preferably, the pressure regulating valve body of the pressure regulating valve member has a flange projecting in the circumferential direction at the end thereof.
In the present invention configured as described above, when the pressure regulating valve body moves, it is possible to generate fluid resistance by the flange projecting in the circumferential direction at the end of the pressure regulating valve body. It is possible to further suppress the rapid operation.

In the present invention, preferably, a faucet device provided with the water stop device with pressure regulating function of the present invention is provided.
In the present invention configured as described above, in the faucet device provided with the water faucet device with a pressure regulating function, the pressure regulating valve body moves excessively due to abrupt operation and collides with the water faucet device body. It is possible to reduce the water hammer phenomenon that generates sound.

In the present invention, preferably, there is provided a hot and cold water mixing faucet device provided with the water faucet device with pressure regulating function of the present invention.
In the present invention configured as described above, even if the supply pressures of hot water and water supplied to the hot and cold water mixing faucet differ greatly, they pass through the pressure regulating valve of the water stop cock device with pressure regulating function. Since the water pressure is adjusted to be almost constant, the hot water supplied to the hot water mixing faucet device is adjusted to a temperature substantially equal to the predetermined set temperature, and the hot water is discharged from the water discharge part of the hot water mixing faucet device. be able to.

  According to the stop cock device with a pressure control function of the present invention, and the faucet device and the hot water / water mixture faucet device provided with the same, it is possible to suppress the pressure regulating valve body from operating suddenly and the pressure regulating valve body is excessively increased. It can suppress moving and colliding with a water faucet device main body, and making a collision sound.

1 is a schematic perspective view showing a water faucet device (a hot and cold water mixing faucet device) including a water stop cock device with a pressure regulating function according to a first embodiment of the present invention. It is a disassembled perspective view of the water stop cock device with a pressure regulation function by a 1st embodiment of the present invention. It is a side view which shows the water side leg member of the water faucet device provided with the water stop cock device with a pressure regulation function by 1st Embodiment of this invention. It is a plane sectional view of the water side leg member of the faucet device provided with the water faucet device with a pressure regulation function of the water stop state by a 1st embodiment of the present invention. It is the elements on larger scale which expanded the part of the water side leg member of the water faucet device provided with the water stop cock device with the pressure regulation function of the water flow state at the time of the medium pressure by 1st Embodiment of this invention. It is sectional drawing which shows the VI-VI cross section of the water side leg member of FIG. It is the perspective view which looked at the C type ring of the stop cock guide of the stop cock with a pressure regulation function by 1st Embodiment of this invention from the front side diagonally upward. It is the elements on larger scale which expanded the part of the water side leg member of the water faucet device provided with the water stop device with the pressure regulation function of the water flow state at the time of the high pressure by 1st Embodiment of this invention. It is a plane sectional view of the water side leg member of the faucet device provided with the water stop cock device with a pressure regulation function of the low pressure state by a 2nd embodiment of the present invention. It is the perspective view which looked at the annular member of the stop cock guide of the stopcock apparatus with a pressure regulation function by 2nd Embodiment of this invention from the front side diagonally upward. It is a plane sectional view of the water side leg member of the faucet device provided with the water stop cock device with a pressure regulation function of the low pressure state by a 3rd embodiment of the present invention. It is the perspective view which looked at the groove part of the stop cock guide of the stop cock with a pressure regulation function by 3rd Embodiment of this invention from the back side diagonally upward. It is the top view which looked at the annular member of the stop cock guide of the stopcock apparatus with a pressure regulation function by 3rd Embodiment of this invention from the back side. It is a disassembled perspective view of a part of water side leg member of a water faucet device provided with a water stop cock device with a pressure regulating function according to a fourth embodiment of the present invention. It is a partial schematic perspective view of a part of the water-side leg member of the faucet device provided with the water stop device with a pressure regulating function according to the fourth embodiment of the present invention. It is the elements on larger scale which expanded the part of the water side leg member of the water faucet device provided with the water faucet device with the pressure regulation function of the water flow state at the time of the medium pressure by 4th Embodiment of this invention. It is the perspective view which looked at the stop cock valve seat member of the stop cock with a pressure regulation function by 4th Embodiment of this invention from the front side diagonally downward. It is a side view of the stop cock valve seat member of the stop cock with a pressure regulation function by 4th Embodiment of this invention. It is sectional drawing which shows the XIX-XIX cross section of the water stop valve seat member of FIG. It is the elements on larger scale which expanded the part of the water side leg member of the water faucet device provided with the water faucet device with the pressure regulation function of the water flow state at the time of the high pressure by 4th Embodiment of this invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a water faucet device with a pressure regulating function, a water faucet device equipped with a water pressure faucet device with a pressure regulating function, and a hot and cold water mixing faucet device according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic perspective view showing a water faucet device (a hot and cold water mixing faucet device) provided with a water stop cock device with a pressure regulating function according to a first embodiment of the present invention.
As shown in FIG. 1, a hot and cold water mixing device 2, which is a water faucet device provided with a pressure stop device 1 according to the first embodiment of the present invention, has a hot and cold water mixing device main body 4. The hot water and water mixing faucet body 4 includes a hot water side inflow portion 6 and a water side inflow portion 8 projecting to the back side, a spout 10 having a water discharge port 10a formed at the tip, a shower hose 12, a temperature control device 14, A spout / shower switching device 16 having a flow rate adjusting function capable of switching to spout water discharged from the spout 10a of the spout 10 or shower water discharged from the shower hose 12 is provided. The hot and cold water mixing device 2 having such a temperature control device 14 is called a so-called “thermostat mixing device”.

The hot and cold water mixing device 2 is connected to the back side (upstream side) of the hot water inflow portion 6 and the water side inflow portion 8 of the hot and cold water mixing device body 4 and has a pressure adjusting function. 1 is provided with a hot water side leg member 18 and a water side leg member 20, respectively, and a hot water side water passage 22 and a water side water flow path 24 are provided in the hot water side leg member 18 and the water side leg member 20, respectively. Each is formed.
In addition, although this embodiment demonstrates as an example the form which applies the water stop cock apparatus 1 with a pressure regulation function to both the hot water side leg member 18 and the water side leg member 20 of the hot water mixed tap apparatus 2, The hot water side leg member 18 is configured to be a leg member having only a water stop function without providing a pressure adjusting function, and only the water side leg member 20 is not limited to such a form. The form which applies the water stopcock apparatus 1 with a pressure regulation function may be sufficient. Moreover, you may make the water stopcock apparatus 1 with a pressure regulation function of this embodiment apply only to the hot water side leg member 18 contrary to such a form.
Moreover, since the structure of the hot water side leg member 18 and the water side leg member 20 is the same, description is abbreviate | omitted about the hot water side leg member 18 hereafter, and only the water side leg member 20 is demonstrated concretely.

Next, referring to FIG. 1 to FIG. 5 and FIG. 8, the details of the water stop cock device 1 with a pressure adjusting function of the present embodiment and hot water mixed water in which the water stop cock device 1 with a pressure adjusting function is incorporated. Details of the water-side leg member 20 of the stopper device 2 will be specifically described.
FIG. 2 is an exploded perspective view of the water stopper device with a pressure adjusting function according to the first embodiment of the present invention, and FIG. 3 is a water valve provided with the water stopper device with a pressure adjusting function according to the first embodiment of the present invention. FIG. 4 is a side view showing a water-side leg member of the apparatus, and FIG. 4 is a plan cross-sectional view of the water-side leg member of the water faucet apparatus provided with the water stop apparatus with a pressure regulating function in the water stop state according to the first embodiment of the present invention. FIG. 5 is a partially enlarged cross-sectional view in which a portion of a water-side leg member of a faucet device provided with a faucet device with a pressure regulating function in a state of passing water at an intermediate pressure according to the first embodiment of the present invention is enlarged. FIG. Moreover, FIG. 8 is the elements on larger scale which expanded the part of the water side leg member of the water faucet device provided with the water stop device with the pressure regulation function of the water flow state at the time of the high pressure by 1st Embodiment of this invention. .

As shown in FIGS. 2 to 5, the water-side water passage 24 of the water-side leg member 20 has a water-side leg connected to a pipe (not shown) connected to a water supply source (not shown) such as tap water. From the inlet 24a formed in the upstream side connection part 26 of the member 20, the outlet 24b formed in the downstream side connection part 28 of the water side leg member 20 connected to the water side inflow part 8 of the hot and cold water mixing device body 4 Up to now, the water-side leg member 20 is formed in a crank shape.
Further, the water-side water passage 24 is downstream from the inlet-side water passage 30 extending from the inlet 24 a to the attachment chamber 24 c to which the water stop cock device 1 with a pressure regulating function is attached, and the water-side water passage 24. A secondary side water passage 32 extending toward a front outlet 24b after extending a predetermined distance substantially parallel to the front surface 20a and the back surface 20b of the water-side leg member 20 toward the side is provided.

  Next, as shown in FIG. 2, the stop cock device 1 with a pressure adjusting function includes a stop cock main body 34, a pressure control valve 36, and a stop cock guide member 38 from the upstream side to the downstream side.

As shown in FIGS. 2, 4, and 5, the water faucet device main body 34 includes a water faucet device main body 39 of the water side leg member 20 that forms the mounting chamber 24 c of the water side water passage 24. It is designed to be attached to the water faucet device main body 39. The water faucet device main body 34 is a water faucet device main body formed along the inner periphery of the upstream primary water passage 30 from the vicinity of the inlet 24d of the mounting chamber 24c of the water side water passage 24. A male screw portion 40 is provided that is screwed into the female screw portion.
Further, the water faucet device main body 34 includes a rotation shaft portion 42 extending in the front-rear direction, and a rear end portion 42 a of the rotation shaft portion 42 is a column portion 40 b protruding forward from a part of the front surface 40 a of the male screw portion 40. Are integrally formed. Furthermore, the inner peripheral surface 40c of the male screw portion 40 allows the primary-side water passage 30 and the attachment chamber 24c to communicate with each other when the inflow port 24d of the attachment chamber 24c of the water-side water passage 24 is open. A water passage is formed.

  On the other hand, the front end portion of the rotation shaft portion 42 is an operation portion 42 b that can be rotated about the central axis C in the longitudinal direction of the water stopcock device 1 with a pressure adjusting function. The operation portion 42b is formed with a key groove 42c, and a tool (not shown) such as a flathead screwdriver is fitted into the key groove 42c and turned to turn the male screw portion 40 and the rotation shaft of the water stop cock main body 34. The portion 42 can be rotated around the axis of the central axis C.

  Further, the water faucet device main body 34 includes a water stop valve body portion 44 formed so as to protrude radially outward from the rear end portion 42a of the rotating shaft portion 42. When a rotation operation is performed by the operation portion 42b of the faucet main body 34, relative movement in the axial direction relative to the inlet 24d of the mounting chamber 24c of the water-side water passage 24 according to the rotation of the rotation shaft portion 42 about the axis. By doing so, the inlet 24d can be opened and closed.

The water stop valve body 44 of the water faucet device body 34 includes a front support protrusion 44a and a rear support protrusion 44b formed so as to protrude radially outward at a predetermined interval in the front-rear direction. A packing 46, which is an annular seal member, is attached and held between the front support protrusion 44a and the rear support protrusion 44b. The packing 46 is formed of a rubber material, a resin material, or a composite material thereof, and as shown in FIG. 4, as shown in FIG. 4, the rear end portion of the water stop valve body portion 44 of the water stop valve body portion 44 ( When the rear end portion 42a) of the rotating shaft portion 42 and the rear end surface 46a of the packing 46 are in contact with and closely contact the inlet 24d of the mounting chamber 24c of the water-side water passage 24, the inlet 24d serves as a valve seat. The primary-side water passage 30 and the secondary-side water passage 32 of the water-side water passage 24 are stopped.
On the other hand, as shown in FIGS. 5 and 8, the rear support protrusion 44 b and the packing 46 of the water stop valve body portion 44 of the water stop device body 34 contact the inlet 24 d of the mounting chamber 24 c of the water side water passage 24. When not in contact, the primary-side water passage 30 and the secondary-side water passage 32 of the water-side water passage 24 are in a state where water is passed through, and the pressure regulating valve body 48 of the pressure regulating valve 36 described later is an outer peripheral surface 46b of the packing 46. In order to prevent the water flowing into the mounting chamber 24c of the water-side water passage 24 from entering the spring chamber 52 of the pressure regulating spring 50, which will be described later, inside the pressure regulating valve body 48. The outer peripheral surface 46 b of the packing 46 seals the gap with the inner peripheral surface 48 a of the pressure regulating valve body 48.

The pressure regulating valve 36 is attached to the rotary shaft portion 42 of the water faucet device main body 34 so as to be movable in the axial direction, and the pressure regulating valve body 48 is axially outside (front direction in FIG. 5). And a pressure regulating spring 50 for urging the spring. The “axially outer side” refers to the stopcock device body portion 39 in the direction in which the stopcock device body 34 opens the inlet 24d, that is, in the axial direction of the rotation shaft portion 42 of the stopcock device body 34. It means the direction away from.
The pressure regulating valve body 48 is formed in a substantially cylindrical shape so as to surround the outer periphery of each of the rotary shaft portion 42 and the water shutoff valve body portion 44 of the water stop cock body 34, and a pressure regulating spring 50 provided therein is provided. A spring chamber 52 for extending and contracting in the axial direction is formed, and a flange 48f projecting in the circumferential direction (projecting radially outward) at the rear end side edge portion 48d of the pressure regulating valve body 48 has an annular shape. It is formed over the entire circumference. The rear surface of this flange receives a resistance force opposite to the direction of movement when the pressure regulating valve body moves backward.
The pressure regulating spring 50 is a compression coil spring that can be expanded and contracted in the axial direction by an axial compressive force, and is connected to the pressure regulating valve body 48. Specifically, a predetermined compression load (preload) is given in advance. In this state, the rear end portion 50 a of the pressure adjustment spring 50 abuts on the front support protrusion 44 a of the water stop valve body portion 44 of the water stop cock body 34, and the front end portion 50 b of the pressure adjustment spring 50 is the shoulder portion of the pressure adjustment valve body 48. It contacts the inner surface of 48b.

As shown in FIGS. 5 and 8, the front surface of the shoulder portion 48 b of the pressure regulating valve body 48 is connected to the inlet of the mounting chamber 24 c of the water-side water passage 24 by the water-stop valve body portion 44 of the water-stop device body 34. The water pressure P1 that moves the pressure regulating valve body 48 inward in the axial direction (rearward direction in FIG. 5) with respect to the rotary shaft portion 42 of the water stop cock main body 34 when the water flow state is opened by 24d. The pressure receiving portion 48c is received on the inner side in the direction.
For example, when the water pressure P1 in the mounting chamber 24c of the water-side water passage 24 acting on the pressure receiving portion 48c of the pressure regulating valve body 48 is less than a predetermined value, the pressure regulating spring 50 does not flex in the axial direction, and the pressure regulating valve body 48 Also, it does not move inward in the axial direction (rearward direction in FIG. 5) with respect to the rotary shaft portion 42 of the water stop cock main body 34.
On the other hand, when the water pressure P1 received by the pressure receiving portion 48c of the pressure regulating valve body 48 is equal to or greater than a predetermined value, the force by which the water pressure P1 presses the pressure regulating valve body 48 in the axial direction (rearward direction in FIG. 5) is adjusted. By exceeding the urging force F1 (see FIG. 5) of the pressure spring 50, the pressure regulating valve body 48 moves inward in the axial direction (rearward direction in FIG. 5) with respect to the rotary shaft portion 42 of the water stop device body 34. The relative distance d1 between the rear end side edge portion 48d of the pressure regulating valve body 48 and the water faucet device main body portion of the water side leg member 20 is adjusted to flow from the primary side water passage 30 into the mounting chamber 24c. The pressure of water flowing out from the outlet 24b of the water-side water passage 24 to the hot and cold water mixing device body 4 through the inlet 24d is adjusted.

  Here, FIG. 5 and FIG. 8 show the position in the axial direction of the pressure regulating valve body 48 of the pressure regulating valve 36 in the water passing state when the water pressure P1 is medium, and the water flow when the water pressure P2 is higher than the water pressure P1. Although the axial position of the pressure regulating valve body 48 of the pressure regulating valve 36 in the state is shown, the rear end side edge portion 48d of the pressure regulating valve body 48 is shown in FIG. 8 when the water pressure P2 is high. The relative distance d2 between the water-side leg member 20 and the water faucet device main body 39 is equal to the rear end side edge 48d of the pressure regulating valve body 48 and the water-side leg when the water pressure P1 shown in FIG. The relative distance d1 between the member 20 and the water faucet device main body 39 is smaller than the distance between the rear end side edge 48d of the pressure regulating valve body 48 and the water faucet device main body 39 of the water side leg member 20. The flow path between them is narrowed, and pressure regulation is performed by reducing the flow rate of the water passing through the pressure regulating valve body 48 of the pressure regulating valve 36. That.

  Next, as shown in FIGS. 2, 5, and 6, the rotary shaft portion 42 of the water faucet device body 34 has a front end portion 50 b of the pressure regulating spring 50 of the pressure regulating valve 36 and a shoulder portion 48 b of the pressure regulating valve body 48. When the inner surface of the (pressure receiving portion 48c) is urged outward in the axial direction (front direction in FIG. 5), the pressure regulating valve body 48 is located closer to the front end portion of the rotary shaft portion 42 of the water stopcock device body 34. A retaining ring member 54 is provided as a movement restricting means for restricting movement from moving outward in the axial direction.

  Next, as shown in FIGS. 2 to 5 and 8, the stop cock guide member 38 is pivoted to the stop cock apparatus body 34 and the pressure regulating valve 36 attached in the mounting chamber 24 c of the water side water passage 24. A stop cock guide member main body 56 detachably attached from the outside in the direction, and a secondary water passage 32 on the outer peripheral side of the pressure regulating valve body 48 of the pressure regulating valve 36 in the mounting chamber 24 c of the water side water passage 24. A filter member 58 that is detachably attached to the inner peripheral surface 56a of the rear end portion of the stop cock guide member main body 56 and filters dust contained in the water flowing into the mounting chamber 24c of the water-side water passage 24; A recess formed on the rear side of the inner peripheral surface of the faucet guide member main body 56, and a side wall portion 48h of the pressure regulating valve body 48 of the pressure regulating valve 36, which is disposed in the concave portion, is slidably held in the axial direction. A mold ring 64 is provided.

A male screw 56 b formed on the outer peripheral surface is provided on the outer peripheral surface of the water stop cock guide member main body 56, and the male screw 56 b is screwed into the female screw 20 d of the water-side leg member 20.
In addition, the stop cock guide member 38 includes an outer O-ring 60 attached to the outer peripheral surface of the stop cock guide member main body 56, and the outer O-ring 60 allows the outer peripheral surface of the stop cock guide member main body 56 and the water-side leg. A gap with the inner peripheral surface of the member 20 is sealed.

Furthermore, the inner peripheral surface of the water faucet guide member main body 56 includes a front guide portion 56c and a rear guide portion 56d. The front guide portion 56c includes the water faucet guide member main body 56 of the water side leg member 20. In the state of being attached to the attachment portion 20c, the operation portion 42b of the rotary shaft portion 42 of the water faucet device body 34 and the outer periphery of the neck portion 48e of the pressure regulating valve body 48 of the pressure regulating valve 36 are surrounded, and the rotation of the water faucet device body 34 is performed. The axial movement of the operation portion 42b of the shaft portion 42 and the pressure regulating valve body 48 of the pressure regulating valve 36 can be guided. The front guide portion 56c of the stop cock guide member main body 56 is provided with an inner O-ring 62 for sealing a gap between the inner peripheral surface thereof and the outer peripheral surface of the neck portion 48e of the pressure regulating valve body 48 of the pressure regulating valve 36. Yes.
Further, the rear guide portion 56d of the inner peripheral surface of the stop cock guide member main body 56 is formed on the side wall portion 48h of the pressure regulating valve body 48 extending from the shoulder portion 48b of the pressure regulating valve body 48 of the pressure regulating valve 36 to the rear stepped portion 48g. The movement in the axial direction can be guided.

Next, the rear guide portion 56d of the inner peripheral surface of the stop cock guide member main body 56 will be described in detail with reference to FIGS.
6 is a cross-sectional view showing a VI-VI cross section of the water-side leg member of FIG. 3, and FIG. 7 is a cross-sectional view of a stop cock guide of the stop cock device with pressure regulating function according to the first embodiment of the present invention. It is the perspective view which looked at the type | mold ring from the front side diagonally upward.
The rear guide portion 56d of the water faucet guide member main body 56 is formed with a recess 66 formed such that its inner peripheral surface is recessed outward in the radial direction. The concave portion 66 forms an annular inner space over the entire circumference, and the cross section of the concave portion 66 is formed in a U-shape opened toward the inside.
A C-shaped ring 64 formed in an annular shape so as to substantially match the annular space formed by the recess 66 is combined with the recess 66 of the rear guide portion 56 d of the water stop guide member main body 56. The C-shaped ring 64 has a notch formed in a part of the entire circumference of the annular ring, and an open portion 64a in a C shape.
The C-shaped ring 64 includes a front surface 64b on the front side, a rear surface 64c on the rear side, an inner peripheral surface 64d on the radially inner side, and an outer peripheral surface 64e on the radially outer side.
The C-shaped ring 64 is supported such that when the C-shaped ring 64 receives water pressure from the secondary side water passage 32, the front surface 64b and the front inner surface 66a of the concave portion are substantially in close contact, and the rear surface 64c and the concave portion 66 are supported. A slight outer circumferential clearance is formed between the rear inner surface 66b of the first and second rear surfaces 66b. The inner peripheral surface 64d of the C-shaped ring 64 is disposed so as to be able to guide while being in contact with the side wall portion 48h of the pressure regulating valve body 48 of the pressure regulating valve 36. An outer peripheral clearance 66d is formed between the outer peripheral surface 64e of the C-shaped ring 64 and the concave inner peripheral surface 66c.

The opening 64a formed in the C-shaped ring 64 is directed rearward from an opening formed in a part of the entire ring on the front surface 64b side to an opening formed in a part of the entire ring on the rear surface 64c side. Thus, an open passage extending linearly is formed.
In the case where the C-shaped ring 64 is disposed in combination in the concave portion 66, when the front surface 64b of the C-shaped ring 64 is pressed against and closely contacts the front inner surface 66a of the concave portion 66, the rear surface 64c of the C-shaped ring is rearward of the concave portion 66. When pressed against and closely contact the inner surface 66b, it becomes difficult for water to pass through these contact areas (a state in which the water flow is almost sealed), and when they are placed in combination as described above, C Between the inner peripheral surface 64d of the mold ring 64 and the side wall portion 48h, it is in a state in which it is difficult for water to pass therethrough (a state in which water flow is substantially sealed). On the other hand, the open portion 64 a of the C-shaped ring 64 forms a flow path that allows water to flow, and the flow path in the open portion 64 a communicates with the secondary side water passage 32 and communicates with the pressure receiving portion side water passage 68. It is supposed to be.

The size of the opening 64a of the C-shaped ring 64 is such that the length L1 of the opening width of the opening 64a is about 1 mm when viewed from the front surface 64b of the C-shaped ring 64, and the water pressure in the secondary side water passage 32 is When rising, when water suddenly flows in from the secondary side water passage 32, it has such a size as to cause resistance that makes it difficult to pass through the flow path in the open portion 64a of the C-shaped ring 64 at once (a sudden change in flow rate). The size of the pressure regulating valve body 48 is soft enough to produce a damper effect).
Therefore, the opening 64a of the C-shaped ring 64 has a very small flow path compared to the size of the flow path when flowing in from the secondary side water passage 32, and is buffered so as to prevent sudden inflow of water. Thus, a damper effect can be produced. That is, when the water pressure in the secondary side water passage 32 rises, the flow rate of the water passing therethrough can be reduced to some extent by the opening 64a of the C-shaped ring 64, and as a result, the pressure regulating valve body 48. Can be suppressed.
The shape of the open portion 64a of the C-shaped ring 64 can be changed to various shapes that can form a flow path that can pass a predetermined flow rate as described above. For example, from the opening on the front surface 64b side toward the opening on the rear surface 64c side. A gap that extends linearly in the oblique direction (a gap that extends in the radial direction and rearward when viewed from the axial direction) may be formed.

The operation (action) of the faucet device provided with the water faucet device with pressure regulating function according to the first embodiment of the present invention described above will be described.
First, as shown in FIG. 4, in a state where the water is stopped, the user rotates the key groove 42 c of the operation portion 42 b of the rotary shaft portion 42 of the water stop cock device main body 34, so that the water stop cock device main body 34. The rotary shaft portion 42 and the male screw portion 40 are moved to the upstream side (rear side) in the axial direction, so that the rear end portion (rotary shaft) of the rear side support protrusion 44b of the water stop valve body portion 44 of the water stop cock device body 34 is moved. The rear end portion 42a of the portion 42 and the rear end surface 46a of the packing 46 are in contact with and closely contact the water faucet device main body 39, close the inlet 24d, and the primary side water passage 30 and the secondary side water passage 32. Is stopped.

Next, as shown in FIG. 5, the water flow state at medium pressure will be described.
In the state where the inflow port 24d is opened by the water stop valve body portion 44 of the water faucet device main body 34, the water in the primary side water passage 30 passes through the inner peripheral surface 40c of the male screw portion 40 of the water stop device main body 34. And flows into the mounting chamber 24c through the inlet 24d. Then, the water that has flowed into the mounting chamber 24 c passes through the filter member 58 from the outside of the pressure regulating valve body 48 and flows out to the secondary water passage 32. Part of the water flowing out to the secondary side water passage 32 can enter and exit the pressure receiving portion side water passage 68 from the secondary side water passage 32 through the flow path in the open portion 64 a of the C-shaped ring 64.

  At this time, as shown in FIG. 5, when the pressure P1 received by the pressure receiving portion 48c of the pressure regulating valve body 48 of the pressure regulating valve 36 from the water in the pressure receiving side water passage reaches a predetermined value or more in the mounting chamber 24c, The force by which the water pressure P1 presses the pressure regulating valve body 48 axially inward (the rearward direction in FIG. 5) exceeds the urging force F1 of the pressure regulating spring 50, and the pressure regulating valve body 48 is the rotating shaft portion of the stop cock device main body 34. 42 relative to the water stop device main body 39 of the water-side leg member 20. The distance d1 is adjusted, and the pressure of the water flowing out from the outlet 24b of the water-side water passage 24 to the hot water / mixing faucet body 4 through the inlet 24d in the mounting chamber 24c from the primary-side water passage 30 is adjusted.

  On the other hand, when the water pressure P1 received by the pressure receiving portion 48c of the pressure regulating valve body 48 of the pressure regulating valve 36 is less than a predetermined value, the compression load acting in the axial direction of the pressure regulating spring 50 from the pressure regulating valve body 48 is also less than the predetermined value. Accordingly, the relative distance between the rear end side edge portion 48d of the pressure regulating valve body 48 and the water faucet device main body 39 of the water side leg member 20 without being compressed in the axial direction is shown in FIG. 5 is greater than the relative distance d1 between the rear end side edge portion 48d of the pressure regulating valve body 48 and the water faucet device main body 39 of the water side water passage 24 when the water pressure P1 is medium.

Furthermore, as shown in FIG. 8, the water flow state at the time of high pressure will be described.
When the water pressure in the secondary side water passage 32 rises, the water flows from the secondary side water passage 32 through the flow path in the open portion 64 a of the C-shaped ring 64 and flows into the pressure receiving portion side water passage 68. . When water flows into the pressure receiving part side water passage 68, the force exerted on the pressure receiving part 48c of the pressure regulating valve body 48 of the pressure regulating valve 36 by the pressure receiving part side water passage 68 in the axial direction increases. When the water pressure P2 received by the pressure receiving portion 48c of the pressure regulating valve body 48 of the pressure regulating valve 36 is higher than the water pressure P1 in the water passing state at the intermediate pressure shown in FIG. The relative distance d2 between the end side lip 48d and the water stop device main body 39 of the water side leg member 20 is the rear end side lip of the pressure regulating valve body 48 when the water pressure P1 shown in FIG. 48d and the water faucet device main body 39 of the water-side leg member 20 are smaller than the relative distance d1, and the water-stopper faucet 48d of the pressure regulating valve body 48 and the water-side leg member 20 are closed. Pressure regulation is performed by narrowing the flow path between the apparatus main body 39 and reducing the flow rate of water passing through the pressure regulating valve body 48 of the pressure regulating valve 36.

Further, a case will be described in which the water pressure suddenly increases from the water passage state at the medium pressure in FIG. 5 to change to the water passage state at the high pressure in FIG.
When the water pressure in the secondary side water passage 32 suddenly increases, water tends to suddenly pass from the secondary side water passage 32 through the flow path in the open portion 64a of the C-shaped ring 64.
Water flows from the secondary side water passage 32 to the annular rear surface 64c of the C-shaped ring 64 between the rear guide portion 56d of the stop cock guide member main body 56 and the side wall portion 48h of the pressure regulating valve body 48 of the pressure regulating valve 36. It flows in. The rear surface 64c of the C-shaped ring 64 receives water resistance because the inflowing water collides, and the rear surface 64c around the open portion 64a of the C-shaped ring 64 is water that rapidly flows into the open portion 64a. The open portion 64a of the C-shaped ring 64 allows the incoming water to flow therethrough so that it does not receive the resistance of water. The C-shaped ring 64 has the entire circumference of the C-shaped ring 64. The pressure is non-uniformly applied (the force due to the distorted resistance). The force received by the C-shaped ring 64 (force generated by the distorted resistance) is transmitted to the front inner surface 66a of the concave portion 66 supported by pressing the front surface 64b of the C-shaped ring 64, but not transmitted to the pressure regulating valve body 48. It is like that.

When the water pressure in the secondary water passage 32 suddenly increases, the water flowing in from the secondary water passage 32 flows between the front surface 64b of the C-shaped ring 64 and the front inner surface 66a of the recess 66 and C The flow is blocked between the mold ring 64 and the side wall portion 48h of the pressure regulating valve body 48 and attempts to flow into the open portion 64a of the C-shaped ring 64. However, the size of the open portion 64a of the C-shaped ring 64 is limited. Therefore, it cannot flow rapidly due to resistance, and passes through the opening 64a of the C-shaped ring 64 while being suppressed by a gentle change in flow rate.
The water that has passed through the open part 64 a of the C-shaped ring 64 flows into the pressure receiving part side water passage 68. Since water flows in a gentle flow while receiving water resistance at the opening 64 a without suddenly flowing into the pressure receiving side water passage 68, the water is received by receiving the water pressure of the pressure receiving side water passage 68. The pressure receiving portion 48c is not suddenly pressurized and its rapid operation is suppressed. Accordingly, the pressure regulating valve body 48 can be moved inward in the axial direction by a change in the range of the gentle movement speed, and the relative distance from the water stop cock main body 39 can be adjusted. By being actuated and having a high moving speed, it is suppressed that the rear end side edge portion 48d of the pressure regulating valve body 48 moves excessively and collides with the stopcock device main body 39 to generate a collision sound. Yes.
Further, when the pressure regulating valve body 48 slides and moves in the axial direction, the force due to the water pressure that the C-type ring 64 receives unevenly from the C-type ring 64 to the entire circumference is transmitted to the stop cock guide member body 56, Since the pressure regulating valve body 48 is not transmitted to the pressure regulating valve body 48, the pressure regulating valve body 48 is tilted by receiving the force from the C-shaped ring 64, and slides linearly in the front-rear direction without causing vibration during sliding movement. While adjusting the pressure.

  After the pressure adjustment is performed, the water in the secondary water passage 32 in the water flow state flows from the downstream side connection portion 28 of the water side leg member 20 (the water side inflow portion 8 of the hot water mixing faucet body 4). It flows into the hot water mixing faucet device main body 4 and is mixed with the hot water flowing from the hot water side leg member 18 in the main body 4. When hot water is mixed in the hot water / water mixing faucet body 4, the temperature of the hot water mixed by the temperature adjusting device 14 is adjusted, and then sent to the spout 10 a of the spout 10 or the shower hose 12 to discharge water. The

According to the water stop cock device 1 with the pressure regulating function of the first embodiment of the present invention described above, the C ring 64 is disposed in the recess 66 of the water stop guide member main body 56, so The flow path in the open portion 64a through which the water can flow between the secondary side water passage 32 where the pressure regulating valve body 48 regulates pressure and the pressure receiving portion side water passage 68 where the pressure receiving portion 48c is received is formed on the entire circumference. Since it is formed in part, the water pressure in the secondary side water passage 32 rises, and the pressure receiving part 48c receives the pressure from the secondary side water passage 32 where the pressure regulating valve body 48 regulates water. When flowing into the side water passage 68, the water is subjected to resistance to pass through the passage formed in a part of the entire circumference. Accordingly, the rapid movement of water is suppressed, water suddenly flows into the pressure receiving part side water passage 68 where the pressure receiving part 48c is received, and the pressure receiving part 48c of the pressure regulating valve body 48 receives the pressure of the water flowing in, The rapid operation of the pressure regulating valve body 48 can be suppressed, and the pressure regulating valve body 48 can be prevented from excessively moving and colliding with the water stop cock main body 39 to generate a collision sound.
Further, since the C-shaped ring 64 is disposed in the recess 66 of the stop cock guide member main body 56, the C-shaped ring 64 passes through the flow path in the open portion 64a formed in a part of the entire circumference. Since the non-uniform water pressure is applied to the entire circumference of the C-shaped ring 64 and the received pressure is transmitted to the stop cock guide member main body 56 and not transmitted to the pressure regulating valve body 48, the pressure regulating valve body 48 is By receiving force from the ring 64, it is possible to suppress adverse effects such as tilting of the pressure regulating valve body 48 and causing vibration when the pressure regulating valve body 48 slides.

  Further, according to the water stop cock device 1 with the pressure regulating function of the present embodiment, when the pressure regulating valve body 48 moves, the flange 48f projecting in the circumferential direction at the rear end side edge portion 48d of the pressure regulating valve body 48. It becomes possible to generate fluid resistance and further suppress the sudden operation of the pressure regulating valve body 48. Since the flange 48 f is close to the primary side water passage 30, the flange 48 f is susceptible to water flow resistance.

  Furthermore, according to the water faucet device 1 with a pressure regulating function of the present embodiment, in the water faucet device 2 provided with the water faucet device 1 with a pressure regulating function, the pressure regulating valve body 48 moves excessively by a rapid operation. Thus, it is possible to reduce the water hammer phenomenon that collides with the water stop device main body 39 and generates a collision sound.

  In addition, according to the hot and cold water mixing device 2 provided with the water stop device 1 with the pressure adjusting function of the present embodiment, the supply pressures of hot water and water supplied to the hot and cold water mixing device 2 are greatly different. Even so, since the pressure of the water passing through the pressure regulating valve 36 of the water stop cock device 1 with the pressure regulating function is adjusted to be substantially constant, the hot water supplied to the hot water mixed tap device 2 has a predetermined set temperature. The temperature is adjusted to be approximately equal, and hot water can be discharged from the spout 10 of the hot and cold water mixing device 2.

Next, with reference to FIG.9 and FIG.10, the water faucet device provided with the water stop cock device with a pressure regulation function by 2nd Embodiment of this invention is demonstrated.
FIG. 9 is a plan sectional view of a water-side leg member of a faucet device provided with a water stop device with a pressure regulating function in a low pressure state according to a second embodiment of the present invention, and FIG. 10 is a second embodiment of the present invention. It is the perspective view which looked at the annular member of the stop cock guide of the stopcock apparatus with a pressure regulation function by seeing from the front side diagonally upward.
Here, in FIG.9 and FIG.10, the same code | symbol is attached | subjected about the same part as the faucet device provided with the water stop cock device with a pressure regulation function by 1st Embodiment of this invention, and those description is abbreviate | omitted. To do.

  As shown in FIG. 9, in the water stop cock device 100 with a pressure control function according to the second embodiment of the present invention, the water stop device body 34 and the pressure control valve 36 are the same as those in the first embodiment of the present invention described above. After the stop cock guide member main body 156 of the stop cock device 1 of the first embodiment, which has the same configuration as the stop cock device body 34 and the pressure regulating valve 36 of the stop cock device 1 with a pressure function. The side guide portion 156d is different from the water stop cock device 1 with a pressure regulating function according to the first embodiment.

  According to the hot and cold water mixing faucet device 102 which is a faucet device provided with the water faucet device 100 having a pressure regulating function according to the second embodiment of the present invention, the stop cock guide member 138 is the stop cock guide member main body 156. A recessed portion 166 formed on the rear side of the inner peripheral surface of the inner peripheral surface of the pressure regulating valve 36, and an annular member 164 disposed in the recessed portion 166 to hold the side wall portion 48h of the pressure regulating valve body 48 of the pressure regulating valve 36 slidably in the axial direction. And a stopper portion 170 that forms a rear surface of the concave portion 166 and closes the annular member 164 disposed in the concave portion 166.

As shown in FIG. 9, an annular member 164 formed in an annular shape that substantially matches the annular space formed by the recess 166 is formed in the recess 166 of the rear guide portion 156 d of the stop cock guide member main body 156. Are combined.
The annular member 164 is formed with an annular recess (thin wall portion) 164a formed so as to protrude outward on the inner peripheral surface in a part of the entire circumference of the annular ring. A possible flow path is formed.
The annular member 164 includes a front surface 164b on the front side, a rear surface 164c on the rear side, an inner peripheral surface 164d on the inner side in the radial direction, and an outer peripheral surface 164e on the outer side in the radial direction. The annular member 164 is supported such that the front surface 164b and the front inner surface 166a of the recess 166 are substantially matched.
The inner peripheral surface 164d of the annular member 164 is disposed so as to be able to guide while being in contact with the side wall portion 48h of the pressure regulating valve body 48 of the pressure regulating valve 36. An outer peripheral clearance is formed between the outer peripheral surface 164e of the annular member 164 and the concave inner peripheral surface 166c.

An annular recess 164a formed in the annular member 164 is an open passage that linearly extends rearward from a part of the entire ring on the front surface 164b side to a part of the entire ring on the rear surface 164c side. Is forming.
On the other hand, the annular recess 164a of the annular member 164 forms a flow path that allows water to flow, and the flow path in the open portion communicates with the secondary side water passage 32 and communicates with the pressure receiving portion side water passage 68. It is like that.
The size of the annular recess 164a of the annular member 164 is such that when water suddenly flows in from the secondary water passage 32 due to an increase in water pressure in the secondary water passage 32, the flow path in the annular recess 164a. It is formed in a size that produces resistance that is difficult to pass through. Therefore, the annular recess 164a of the annular member 164 has a very small flow path compared to the size of the flow path from the secondary side water passage 32, and cushions the damper so as to prevent sudden inflow of water. An effect can be produced. That is, when the water pressure in the secondary side water passage 32 rises, the flow rate of water passing therethrough can be reduced to some extent by the annular recess 164a of the annular member 164. As a result, the pressure regulating valve body The rapid movement of 48 can be suppressed.

  The stopper 170 of the stop cock guide member main body 156 has an inner diameter on the inner peripheral surface of the stop cock guide member main body 156 from the diameter larger than the diameter of the pressure regulating valve body 48 on the rear side of the recess 166 and the rear side of the annular member 164. It is formed in a ring shape extending up to. The stopper portion 170 of the stop cock guide member main body 156 is formed by combining the annular member 164 with the recess 166 after the annular member 164 is disposed in the recess 166 of the rear guide portion 156d of the stop cock guide member main body 156. The annular member 164 is supported so that the rear surface 164c thereof and the stopper portion front surface 170a of the stopper portion 170 substantially coincide with each other.

  After the annular member 164 is disposed in the recess 166, the annular member 164 can be fixed by the stopper portion 170 that is a separate member from the inner peripheral surface of the water stop cock guide member main body 156. Therefore, the annular member 164 The ring member 164 can be mounted in the recess 166 without changing the diameter of the ring member 164, and mounting in the recess 166 is facilitated.

The operation (action) of the faucet device provided with the water faucet device with pressure regulating function according to the second embodiment of the present invention described above will be described.
A case will be described in which the water pressure suddenly rises from the water flow state at the low pressure in FIG. 9 to change to the water flow state at the high pressure.
When the water pressure in the secondary side water passage 32 suddenly increases, water tends to suddenly pass from the secondary side water passage 32 to the flow passage in the annular recess 164a of the annular member 164.
Water flows from the secondary side water passage 32 between the stopper portion 170 and the side wall portion 48h of the pressure regulating valve body 48 of the pressure regulating valve 36 toward the annular rear surface 164c of the annular member 164. The rear surface 164c of the annular member 164 receives water resistance because the inflowing water collides, and the rear surface 164c around the annular recess 164a of the annular member 164 suddenly flows into the annular recess 164a. The annular recess 164a of the annular member 164 is subjected to the pressure caused by the water to flow, so that the water that has flowed in is allowed to flow, so that it does not receive the resistance of water. Therefore, the annular member 164 receives pressure non-uniformly around the entire circumference of the annular member 164. The force received by the annular member 164 is transmitted to the front inner surface 166a of the recess 166 supported by being pressed against the front surface 164b of the annular member 164, and is not easily transmitted to the pressure regulating valve body 48.

When the water pressure in the secondary side water passage 32 suddenly rises, the water flowing in from the secondary side water passage 32 flows between the front surface 164b of the annular member 164 and the front inner surface 166a of the recess 166 and a circle. The flow is interrupted between the inner peripheral surface 164d of the ring member 164 and the side wall portion 48h of the pressure regulating valve body 48, and attempts to flow into the annular recess 164a of the annular member 164. Since the size of 164a is limited, it cannot flow rapidly due to resistance, and passes through the annular recess 164a of the annular member 164 while being suppressed by a gentle change in flow rate.
The water that has passed through the annular recess 164 a of the annular member 164 flows into the pressure receiving part side water passage 68. Since water flows in a gentle flow while receiving water resistance at the annular recess 164a without suddenly flowing into the pressure receiving side water passage 68, the water is received by receiving the water pressure of the pressure receiving side water passage 68. The pressure receiving portion 48c is not suddenly pressurized and is not actuated suddenly. Therefore, the pressure regulating valve body 48 is moved inward in the axial direction by a change in the range of the gentle movement speed, and the relative distance between the water-side leg member 20 and the water faucet device main body 39 can be adjusted. When the pressure valve body 48 operates suddenly and has a high moving speed, the rear end side edge portion 48d of the pressure regulating valve body 48 moves excessively and collides with the stop cock device main body 39 to cause a collision sound. Is prevented from occurring.
Further, when the pressure regulating valve body 48 is slidably moved in the axial direction, it is difficult to transmit the force that the annular member 164 receives unevenly from the annular member 164 to the pressure regulating valve body 48. The pressure adjustment is performed while the body 48 is linearly slid and moved in the front-rear direction without being tilted or caused to vibrate during the sliding movement.

According to the water faucet device 100 with pressure regulating function of the second embodiment of the present invention described above, the circular member 164 disposed in the recess 166 of the water faucet guide member main body 156 has a circular shape of the annular member 164. In the annular recess 164a, there is an annular recess 164a capable of passing water between the secondary side water passage 32 where the pressure regulating valve body 48 regulates pressure and the pressure receiving portion side water passage 68 where the pressure receiving portion 48c is received. Since the flow path is formed on a part of the entire circumference, the water pressure in the secondary side water passage 32 increases, and the pressure is received from the secondary side water passage 32 where the pressure regulating valve body 48 regulates the water. When the pressure 48c flows into the pressure receiving portion side water passage 68 where pressure is received, the water receives resistance to pass through the flow path in the annular recess 164a formed in a part of the entire circumference of the annular member 164. . Therefore, the rapid movement of water is suppressed, and water suddenly flows into the pressure receiving portion side water passage 68 where the pressure receiving portion 48c is received to receive the pressure receiving portion 48c of the pressure adjusting valve body 48, and the pressure adjusting valve body 48 rapidly It is possible to prevent the pressure regulating valve body 48 from moving excessively and colliding with the water stop cock main body 39 to produce a collision sound.
Furthermore, since the annular member 164 is disposed in the recess 166 of the stop cock guide member main body 156, the annular member 164 passes through the flow path in the annular recess 164a in which water is formed in a part of the entire circumference. When passing, a non-uniform water pressure is applied to the entire circumference of the annular member 164, and the received pressure is transmitted to the stop cock guide member main body 156 and not transmitted to the pressure regulating valve body 48. By receiving the force from the ring member 164, the pressure regulating valve body 48 is inclined, and adverse effects such as causing vibrations when the pressure regulating valve body 48 slides can be suppressed.

Next, with reference to FIG. 11 thru | or FIG. 13, the water faucet apparatus provided with the water stop cock apparatus with a pressure regulation function by 3rd Embodiment of this invention is demonstrated.
FIG. 11 is a plan cross-sectional view of a water-side leg member of a faucet device provided with a water stop device with a pressure regulating function in a low pressure state according to a third embodiment of the present invention, and FIG. 12 is a third view of the present invention. It is the perspective view which looked at the groove part of the stop cock guide of the stop cock apparatus with a pressure regulation function by embodiment from the back side diagonally upward, FIG. 13: The stop cock with a pressure regulation function by 3rd Embodiment of this invention It is the top view which looked at the annular member of the stop cock guide of an apparatus from the back side.
Here, in FIG. 11 thru | or FIG. 13, the same code | symbol is attached | subjected about the same part as the water faucet device provided with the water stop cock device with a pressure regulation function by 1st and 2nd embodiment of this invention, and those Description is omitted.

  As shown in FIGS. 11 to 13, in the stop cock device 200 with a pressure regulating function according to the third embodiment of the present invention, the stop cock device body 34 and the pressure regulating valve 36 are the above-described second embodiment of the present invention. The stop cock device main body 34 and the pressure regulating valve 36 of the stop cock device 100 with a pressure regulating function of the embodiment have the same configuration, and the stop cock guide member body of the stop cock device 100 with a pressure regulating function of the second embodiment The recessed portion 166 and the annular member 164 of the rear guide portion 156d of 156 are different from the water stop cock device 100 with the pressure adjusting function according to the second embodiment.

  As shown in FIGS. 11 to 13, according to the stop cock device 200 with a pressure adjusting function according to the third embodiment of the present invention, the back guide portion of the stop cock guide member main body 256 of the stop cock guide member 238. 256d is a recessed portion 266 having a groove portion 272 formed on the rear side of the inner peripheral surface of the stop cock guide member main body 256 and formed on the front side, and a pressure regulating valve body of the pressure regulating valve 36 disposed in the recessed portion 266. And an annular member 264 that holds the side wall portions 48h of the 48 so as to be slidable in the axial direction.

On the front inner surface 266a of the concave portion 266 of the rear guide portion 256d of the water faucet guide member main body 256, the radius from the inner peripheral surface of the rear guide portion 256d to the inner peripheral surface 266c of the concave portion is a part of the entire circumference of the ring. A groove portion 272 that extends outward in the direction is formed.
The annular member 264 is a ring-shaped annular member 264 having the same width and thickness over the entire circumference, and includes a front surface 264b on the front side, a rear surface 264c on the rear side, and an inner peripheral surface on the radially inner side. H.264d and a radially outer peripheral surface 264e. The annular member 264 may not have a recess or an opening so as to have a flow path that allows water to pass through a part of the entire circumference.
When the annular member 264 receives water pressure from the secondary side water passage 32, the front surface 264b and the front inner surface 266a of the recess 266 are supported so as to be in close contact with each other. At that time, the groove portion 272 and the front surface of the annular member 264 are supported. A flow path capable of passing water is formed between H.264b and H.264b.
In the annular member 264, a slight gap is formed between the rear surface 264c and the stopper portion 170. An outer peripheral clearance 266d is formed between the outer peripheral surface 264e of the annular member 264 and the concave inner peripheral surface 266c.
In a state where the annular member 264 is disposed in the concave portion 266, the flow path in the groove portion 272 communicates with the pressure receiving portion side water passage 68 and the outer peripheral clearance 266d, and the outer peripheral clearance 266d is formed between the rear surface 264c and the stopper portion 170. It communicates with the secondary side water passage 32 through a slight rear gap 266f therebetween.
The size of the flow path in the groove portion 272 of the recess 266 is such that when the water pressure in the secondary side water passage 32 rises and water suddenly flows from the secondary side water passage 32, the flow path in the groove portion 272 is blown. It is sized to produce resistance that is difficult to pass.
Therefore, the groove portion 272 of the recess 266 has a smaller flow path than the size of the flow path from the secondary side water passage 32, and can produce a damper effect of buffering so as to prevent sudden inflow of water. . That is, when the water pressure in the secondary side water passage 32 rises, the flow rate of the water passing therethrough can be reduced to some extent by the groove portion 272 of the concave portion 266, and as a result, the pressure regulating valve body 48 is rapidly changed. Movement can be suppressed.
The shape and size of the groove 272 of the recess 266 can be changed so as to form a flow path that can pass a predetermined flow rate as described above.

The operation (action) of the faucet device provided with the water faucet device with pressure regulating function according to the third embodiment of the present invention described above will be described.
The case where the water pressure suddenly rises from the water flow state at the low pressure in FIG. 11 and changes to the water flow state at the high pressure will be described.
When the water pressure in the secondary side water passage 32 suddenly increases, water tends to suddenly pass from the secondary side water passage 32 through the flow path in the groove portion 272 of the rear guide portion 256d.
Water flows from the secondary-side water passage 32 between the stopper portion 170 and the side wall portion 48h of the pressure regulating valve body 48 of the pressure regulating valve 36 toward the annular rear surface 264c of the ring-shaped annular member 264. The water flowing into the rear surface 264c of the annular member 264 collides, and the water flows through the slight rear gap 266f between the rear surface 264c and the stopper portion 170 and flows into the outer circumferential gap 266d, and from the outer circumferential gap 266d to the groove portion 272. Flows into the inner flow path, and flows out from the flow path in the groove 272 to the pressure receiving side water passage 68.
The rear surface 264c of the annular member 264 receives water resistance because the inflowing water collides, and water suddenly flows into the groove portion 272 formed in a part of the entire circumference of the front inner surface 266a of the recess 266. Therefore, the annular member 264 receives pressure non-uniformly around the entire circumference of the annular member 264. The force received by the annular member 264 is transmitted to the front inner surface 266a of the recess 266 supported by pressing the front surface 264b of the annular member 264, and is not transmitted to the pressure regulating valve body 48.

When the water pressure in the secondary side water passage 32 suddenly rises, the water flowing in from the secondary side water passage 32 seals the front surface 264b of the annular member 264 and the front inner surface 266a of the recess 266. However, the flow is blocked at the portion between the annular member 264 and the side wall portion 48h of the pressure regulating valve body 48 and attempts to flow into the groove portion 272 of the front inner surface 266a of the concave portion 266, but the size of the groove portion 272 is limited. Therefore, even if it tries to flow in at once, it cannot receive abruptly due to resistance, and the flow rate passing through the groove 272 is suppressed to a gentle change in flow rate, while the groove 272 of the front inner surface 266a of the recess 266 is suppressed. Pass through.
The water that has passed through the groove 272 of the front inner surface 266 a of the recess 266 flows into the pressure receiving unit side water passage 68. Since water flows in a gentle flow while receiving water flow resistance in the groove 272 without suddenly flowing into the pressure receiving side water passage 68, the pressure received by receiving the water pressure of the pressure receiving side water passage 68 is received. The portion 48c is not suddenly pressurized and is not actuated rapidly. Therefore, the pressure regulating valve body 48 is moved inward in the axial direction by a change in the range of the gentle movement speed, and the relative distance between the water-side leg member 20 and the water faucet device main body 39 can be adjusted. When the pressure valve body 48 operates suddenly and has a high moving speed, the rear end side edge portion 48d of the pressure regulating valve body 48 moves excessively and collides with the stop cock device main body 39 to cause a collision sound. Is prevented from occurring.
Further, when the pressure regulating valve body 48 is slidably moved in the axial direction, it is difficult to transmit the force received by the annular member 264 from the annular member 264 to the pressure regulating valve body 48. The pressure adjustment is performed while the body 48 is linearly slid and moved in the front-rear direction without being tilted or caused to vibrate during the sliding movement.

According to the water stop cock device 200 with pressure regulating function of the third embodiment of the present invention described above, the annular member 264 is disposed in the recess 266 of the water stop guide member main body 256, and on the front inner surface 266 a of the recess 266. A groove portion 272 is formed in a part of the entire circumference of the ring, and in the concave portion 266, a secondary side water passage 32 where the pressure regulating valve body 48 regulates pressure, and a pressure receiving portion side water passage 68 where the pressure receiving portion 48c is received, Since the flow path in the groove portion 272 that can pass water between the concave portion 266 and the annular member 264 is formed in a part of the entire circumference, the water pressure in the secondary side water passage 32 increases. Thus, when water flows from the secondary side water passage 32 where the pressure regulating valve body 48 regulates the pressure into the pressure receiving portion side water passage 68 where the pressure receiving portion 48c is received, the water groove portion on the front inner surface 266a of the recess 266 A resistance is applied to the passage through the flow path in 272. Therefore, the rapid movement of water is suppressed, and water suddenly flows into the pressure receiving portion side water passage 68 where the pressure receiving portion 48c is received to receive the pressure receiving portion 48c of the pressure adjusting valve body 48, and the pressure adjusting valve body 48 rapidly It is possible to prevent the pressure regulating valve body 48 from moving excessively and colliding with the water stop cock main body 39 to produce a collision sound.
Further, since the annular member 264 is disposed in the recess 266 of the stop cock guide member main body 256, the annular member 264 has a groove on the front inner surface 266a of the recess 266 in which water is formed in a part of the entire circumference. Since the non-uniform water pressure is applied to the entire circumference of the annular member 264 when passing through the flow path in the 272, the received pressure is transmitted to the stop cock guide member main body 256 and not to the pressure regulating valve body 48. The pressure valve body 48 receives a force from the annular member 264, and the pressure regulation valve body 48 itself tilts, and adverse effects such as causing vibration when the pressure regulation valve body 48 slides can be suppressed.

Next, with reference to FIG. 14 thru | or FIG. 20, the water faucet apparatus provided with the water stop cock apparatus with a pressure regulation function by 4th Embodiment of this invention is demonstrated.
FIG. 14 is an exploded perspective view of a part of the water-side leg member of the faucet device provided with the water stop device with pressure regulating function according to the fourth embodiment of the present invention, and FIG. 15 is a fourth embodiment of the present invention. FIG. 16 is a partial schematic perspective view of a part of a water-side leg member of a water faucet device having a water stop device with a pressure regulating function according to FIG. 16, and FIG. FIG. 17 is a partially enlarged cross-sectional view in which a portion of a water-side leg member of a water faucet device provided with a water pressure faucet device with a pressure regulating function is enlarged, and FIG. 17 is a water faucet device with a pressure regulating function according to a fourth embodiment of the present invention. FIG. 18 is a side view of the water stop valve seat member of the water stop valve device with pressure regulating function according to the fourth embodiment of the present invention. 19 is a cross-sectional view showing a cross-section XIX-XIX of the stop cock valve seat member of FIG. 18, and FIG. 20 is a view showing a high pressure state according to the fourth embodiment of the present invention. It is a partially enlarged cross-sectional view enlarging a portion of the water leg member faucet apparatus having a pressure regulating function stop cock apparatus of water state.
Here, in FIGS. 14-20, about the same part as the water faucet device provided with the water stop cock device with a pressure regulation function by 1st and 4th embodiment of this invention, the same code | symbol is attached | subjected and those parts are attached. Description is omitted.

  As shown in FIGS. 14-16, in the stop cock apparatus 300 with a pressure regulation function by 4th Embodiment of this invention, the stop cock apparatus 1 with a pressure regulation function of 1st Embodiment of this invention mentioned above, and Water stop with pressure adjustment function according to the first embodiment has the same configuration, and the structure of the water-side leg member 20 and / or the water-side leg member 18 of the hot-water mixing faucet device 2 of the water stop device with pressure control function 1 Different from the stopper device 1.

As shown in FIGS. 14-16, in the water stop cock device 300 with a pressure regulation function by 4th Embodiment of this invention, the water side water passage 324 of the water side leg member 320 is a water supply source (FIG. From the inlet 324a formed in the upstream side connection part 326 of the water side leg member 320 connected to a pipe (not shown) connected to the water side of the hot and cold water mixing device main body (not shown). The water-side leg member 320 is bent in an L shape to the outlet 324b formed in the downstream-side connection part 328 of the water-side leg member 320 connected to the inflow part (not shown).
In addition, the water-side water passage 324 includes a primary-side water passage 330 extending from the inlet 324a to a mounting chamber 324c to which the water stop cock device 300 with a pressure adjusting function is attached, and a downstream side from the mounting chamber 324c of the water-side water passage 324. A secondary side water passage 332 extending toward the front outlet 324b substantially parallel to the front surface 320a and the back surface 320b of the water side leg member 320 is provided. The secondary side water passage 332 is provided with a filter member 358 for filtering dust contained in the water flowing into the secondary side water passage 332, and a filter base packing 359 disposed at the base of the filter member 358. .

  Next, as shown in FIG. 14, the water stopper device 300 with a pressure adjusting function is attached to a predetermined attachment portion 320 c of the water-side leg member 320 that forms the attachment chamber 324 c of the water-side water passage 324, and the upstream side A stop cock valve seat member 334, a pressure regulating valve 336, and a stop cock guide member 338 are provided from the downstream side to the downstream side.

As shown in FIGS. 14 to 16, the stop cock valve seat member 334 is formed along the inner periphery of the upstream side primary water passage 330 from the front side of the inlet 324 d of the mounting chamber 324 c of the water side water passage 324. Has been.
The stop cock valve seat member 334 is formed along the inner periphery of the upstream-side primary water passage 330 from the vicinity of the inlet 324d of the mounting chamber 324c of the water-side water passage 324, and the pressure regulating valve body 348 is in contact therewith. A valve seat base 340 adapted to close the inflow port 324d is provided. This valve seat base 340 forms a water passage that allows the primary side water passage 330 and the attachment chamber 324c to communicate with each other when the inlet 324d of the attachment chamber 324c of the water side water passage 324 is open. Yes. The stop cock valve seat member 334 is formed of a resin that is not easily deteriorated. The valve seat base 340 of the water stop valve seat member 334 is formed with a vent hole 341 for venting outside air into a spring chamber 352 described later, and this vent hole 341 is provided outside the stop cock valve seat member 334. It extends to the vent hole 320d. A packing 345 for sealing between the water-side leg member 320 and the valve seat base 340 is provided on the outer periphery of the valve seat base 340, and a packing 347 for sealing between the valve seat base 340 and the upstream connection portion 326 is provided. It has been.
Further, the stopcock valve seat member 334 rises in a wall shape from the central rear of the valve seat base 340 in the forward direction and extends in the axial direction from the valve seat base 340 to the front, and the shaft wall 342. And a guide portion 344 formed in an umbrella shape so as to protrude radially outward from the front end of the shaft wall portion 342. The guide portion 344 protrudes radially outward at a predetermined interval in the front-rear direction. And a front guide 344a that guides the sliding of the pressure regulating valve body 348, and a front support portion that supports the pressure regulating spring 350 on its front surface, and a pressure regulating valve body 348 on the rear side of the front guide 344a. A rear guide 344b that guides the sliding of the guide, and a packing 346 that is an annular seal member that is attached and held between the front guide 344a and the rear guide 344b. It is provided.
On the other hand, as shown in FIGS. 16 and 20, when the pressure regulating valve 336 is open, the primary-side water passage 330 and the secondary-side water passage 332 of the water-side water passage 324 are in a state of being passed through, which will be described later. The pressure regulating valve body 348 of the pressure regulating valve 336 is slidable in the axial direction with respect to the outer peripheral surface 346b of the packing 346.
The guide portion 344 of the water stop valve seat member 334 may be formed as a separate member that is not connected to the shaft wall portion 342.

The pressure regulating valve 336 includes a pressure regulating valve body 348 attached to the shaft wall portion 342 of the water stop valve seat member 334 so as to be movable in the axial direction, and the pressure regulating valve body 348 in the axially outer side (front direction in FIG. 5). And a pressure regulating spring 350 for urging the pressure. The “axially outer side” means a direction in which the pressure regulating valve body 348 opens the inflow port 24d, that is, a direction away from the inflow port 324d in the axial direction of the pillar portion of the water stop cock main body 34.
The pressure regulating valve body 348 is formed in a substantially cylindrical shape so as to surround the outer periphery of each of the guide portion 344 and the pressure regulating spring 350 of the water stop valve seat member 334, and the pressure regulating spring 350 provided therein is axially arranged. A spring chamber 352 for extending and contracting is formed.
Since the pressure regulating valve body 348 is formed of a thin metal plate, the rear end side edge 348d on the rear side of the annular end of the pressure regulating valve body 348 has a relatively small area for receiving pressure from running water. It is formed in a size that is difficult to receive pressure from running water.
In the pressure adjusting spring 350, the rear end portion 350 a of the pressure adjusting spring 350 abuts against the front guide 344 a of the guide portion 344 of the water stop valve seat member 334 in a state where a predetermined compression load (preload) is given in advance. The front end portion 350 b of the pressure regulating spring 350 is in contact with the inner surface of the front end portion 348 f of the pressure regulating valve body 348.

Further, as shown in FIG. 16, the front surface of the front end portion 348f of the pressure regulating valve body 348 is adjusted when the pressure regulating valve body 348 is in a water passage state in which the inlet 324d of the attachment chamber 324c of the water side water passage 324 is opened. A pressure receiving portion 348c that receives the water pressure P3 that moves the pressure valve body 348 inward in the axial direction (rearward direction in FIG. 16) along the axial wall portion 342 of the stop cock valve seat member 334 from the outside to the axial direction inside. .
For example, when the water pressure P3 in the mounting chamber 324c of the water-side water passage 324 acting on the pressure receiving portion 348c of the pressure regulating valve body 348 is less than a predetermined value, the pressure regulating spring 350 does not flex in the axial direction, and the pressure regulating valve body 348 Further, the valve stop base 340 of the water stop valve seat member 334 is prevented from moving inward in the axial direction (rearward direction in FIG. 16).
On the other hand, when the water pressure P3 received by the pressure receiving portion 348c of the pressure regulating valve body 348 is equal to or greater than a predetermined value, the force by which the water pressure P3 presses the pressure regulating valve body 348 in the axial direction (rearward direction in FIG. 16) is regulated. By exceeding the urging force F3 (see FIG. 16) of the pressure spring 50, the pressure regulating valve body 348 moves inward in the axial direction (rearward direction in FIG. 16) with respect to the valve seat base of the stop cock valve seat member 334. The relative distance d3 between the rear end side edge portion 348d of the pressure regulating valve body 348 and the valve seat base portion 340 of the water stop valve seat member 334 is adjusted, and the inflow port in the mounting chamber 324c from the primary side water passage 330 is adjusted. The pressure of water flowing out from the outlet 324b of the water-side water passage 324 to the hot water / water faucet body (not shown) via 324d is adjusted.

  Here, FIG. 16 and FIG. 20 show the axial position of the pressure regulating valve body 348 of the pressure regulating valve 336 in the water flow state when the water pressure P3 is low, and the water flow state when the water pressure P4 is higher than the water pressure P3. The pressure regulating valve body 348 has a position in the axial direction of the pressure regulating valve body 336. In the water flow state at the time of high water pressure P4 shown in FIG. 20, the rear end side edge 348d of the pressure regulating valve body 348 and The relative distance d4 with the valve seat base is smaller than the relative distance d3 between the rear end side edge 348d of the pressure regulating valve body 348 and the valve seat base when the water pressure P3 is low as shown in FIG. The flow path between the rear end side edge portion 348d of the pressure regulating valve body 348 and the valve seat base portion 340 is narrowed, and the flow of water passing through the pressure regulating valve body 348 of the pressure regulating valve 336 is throttled to perform pressure regulation. It has come to be.

  Next, as shown in FIGS. 14 to 16 and 20, the stop cock guide member 338 is attached to the front side in the attachment chamber 324 c of the water-side water passage 324 and is screwed with the water-side leg member 320. The stop valve guide member main body 356 that guides the pressure regulating valve 336 to be slidable in the front-rear direction between the stop valve valve seat member 334 and one of the inner peripheral surfaces of the stop cock guide member main body 356 is formed. And a C-shaped ring 64 that is disposed in the recess and holds the side wall portion 348h of the pressure regulating valve body 348 of the pressure regulating valve 336 so as to be slidable in the axial direction.

  The stop cock guide member 338 includes an outer O-ring 360 attached to the outer peripheral surface of the stop cock guide member main body 356, and the outer O-ring 360 allows the outer peripheral surface of the stop cock guide member main body 356 and the water-side leg member 320 to be attached. The gap with the inner peripheral surface of the is sealed.

  The faucet guide member main body 356 has an operation portion 356b whose front end portion is rotatable around the central axis C in the longitudinal direction of the water faucet device 300 with a pressure adjusting function. The operation portion 356b includes Is formed with a key groove 356c, and a tool (not shown) such as a flat-blade screwdriver is fitted into the key groove 356c and turned to turn the central axis C in the direction of the valve seat base 340 according to the rotation around the axis. By relative movement in the axial direction, the pressure regulating valve body 348 in contact with the rear side of the stop cock guide member main body 356 can be moved to the top of the valve seat base 340 to open and close the inlet 324d. Yes.

  Further, the stop cock guide member main body 356 is formed in a cylindrical shape having a recessed center so as to cover the front of the convex portion from the front of the shoulder portion 348b of the pressure regulating valve body 348 of the pressure regulating valve 336. The member main body 356 surrounds the front outer periphery of the convex portion 348e of the pressure regulating valve body 348 of the pressure regulating valve 336 in a state of being attached to the attachment portion 320c of the water side leg member 320, and the shaft of the pressure regulating valve body 348 of the pressure regulating valve 336 The movement of the direction can be guided.

Next, the stop cock guide member main body 356 will be described in detail with reference to FIGS.
The water faucet guide member main body 356 has a recess 366 formed so that its inner peripheral surface is recessed outward in the radial direction. This recess 366 substantially matches the annular space formed by the recess 366. A C-shaped ring 64 formed in an annular shape is combined.
The inner peripheral surface of the C-shaped ring 64 is arranged so that it can be guided while being in contact with the side wall portion 348 h of the pressure regulating valve body 348 of the pressure regulating valve 336.
On the other hand, the open portion 64a of the C-shaped ring 64 forms a flow path through which water can flow, and the flow path in the open portion communicates with the secondary side water passage 332 and communicates with the pressure receiving portion side water passage 368. It has become.
The size of the opening portion 64a of the C-shaped ring 64 is such that the length L of the opening width of the opening portion is about 1 mm when viewed from the front surface of the C-shaped ring 64, and when the water pressure rises in the secondary side water passage, When water suddenly flows from the secondary side water passage 332 into the pressure receiving side water passage 368, it has such a size as to generate resistance that is difficult to pass through the flow path in the open portion 64a of the C-shaped ring 64 at once (rapidly The size is such that the change in flow rate is softened and a damper effect is produced in the movement of the pressure regulating valve body 48).
Therefore, the open part 64a of the C-shaped ring 64 has a very small flow path compared to the size of the flow path when flowing in from the secondary side water passage 332, and is buffered to prevent sudden inflow of water. A damper effect can be produced. That is, when the water pressure in the secondary side water passage 332 rises, the flow rate of the water passing therethrough can be reduced to some extent by the opening 64 a of the C-shaped ring 64, and as a result, the pressure regulating valve body 348. Can be suppressed.

Next, the water stop valve seat member will be described in detail with reference to FIGS.
The rear guide 344b of the stop cock valve seat member 334 further includes a water flow guide surface 344c for guiding the water flow on the rear side, and a valve body guide portion 344d for guiding the sliding of the pressure regulating valve body on the outer peripheral end in the radial direction. And are formed.
The water flow guide surface 344c of the rear guide 344b of the stop cock valve seat member 334 is formed radially inward from the valve body guide portion 344d formed on the circumference.
In the stop cock valve seat member 334, an axial flow path 340a is formed in the valve seat base 340 along the axial direction of the stop cock valve seat member 334, and the water flow guide surface 344c of the rear guide 344b It is formed so as to cover the front surface in the inflow direction from the axial flow path 340a. The inlet of the axial flow path 340a forms an inlet 324d.
The inlet width W1 of the axial flow path 340a is set smaller than the guide surface width W2 of the water flow guide surface 344c of the rear guide 344b.
Accordingly, the position of the inlet 324d of the axial flow path 340a is positioned radially inward of the valve body guide portion 344d of the rear guide 344b of the water stop valve seat member 334, and the radial direction of the valve body guide portion 344d. The pressure regulating valve body 348 that slides outside is disposed at a position that does not face the pressure regulating valve body 348. Therefore, the water flowing from the inlet 324d of the axial flow path 340a is set so as not to directly collide with the pressure regulating valve body 348 while maintaining the inflow direction.

The stop cock valve seat member 334 is formed with a bent channel portion 340b in which the channel is bent in an L shape by an axial wall portion 342 extending in the axial direction and a water flow guide surface 344c extending in the radial direction. Between the two semicircular water flow guide surfaces 344c and the substantially annular upper surface 340c of the valve seat base 340, a water stop valve seat outflow passage 340d having a shape along the semicircular circumference is formed.
Since the pressure regulating valve body 348 is provided so as to be seated slightly outside the upper surface 340c of the valve seat base 340, the flow direction of water from the water stop valve seat outflow path 340d slides with the pressure regulating valve body 348. The direction is substantially perpendicular to the sliding direction.

Next, the operation (action) of the water faucet device provided with the water pressure faucet device with pressure regulating function according to the above-described fourth embodiment of the present invention will be described.
First, a state where the user operates the stop cock guide member 338 to stop water will be described.
The user inserts a tool such as a flat-blade screwdriver (not shown) into the key groove 356c of the operation portion 356b of the stop cock guide member 338 and turns it so that the water stops according to the rotation of the central axis C around the axis. The stopper guide member 338 is relatively moved in the axial direction in the direction of the valve seat base 340, and the pressure regulating valve body 348 that is in contact with the rear side of the stop cock guide member main body 356 is brought into contact with and closely contacted with the valve seat base 340. The inflow port 324d is closed, and the primary side water passage 30 and the secondary side water passage 32 are stopped.

Next, the pressure regulation state in which the pressure regulating valve body adjusts the pressure of the water passage when the water passage is not stopped will be described.
As shown in FIG. 16, the water flow state at medium pressure will be described.
In the state where the pressure regulating valve body 348 of the pressure regulating valve 336 opens the valve seat base 340 and the inlet 324d is opened, the water in the primary side water passage 330 flows from the primary side water passage 330 into the valve seat base 340. Flows in the axial direction flow path 340a, flows in the axial direction along the axial wall part 342, and flows into the bent flow path part 340b from the inlet 324d. The water that has flowed into the bent flow path portion 340b along the axial direction collides with the water flow guide surface 344c provided in front of the inlet 324d, and the direction of the water flow is changed from the axial direction along the water flow guide surface 344c. Change the direction to flow outward in the radial direction almost at a right angle. This water flow forms a flow that flows out radially outward from the water stop valve seat outflow passage 340d. By this flow, water passes through the flow path formed by the stop cock valve seat member 334 and flows into the mounting chamber 324c through the inlet 324d. Then, the water that has flowed into the mounting chamber 324 c flows out to the secondary side water passage 332. A part of the water flowing out to the secondary side water passage 332 can enter and exit the pressure receiving portion side water passage 368 from the secondary side water passage 332 through the flow path in the opening 64 a of the C-shaped ring 64.

  At this time, as shown in FIG. 16, in the mounting chamber 324c, when the water pressure P3 received by the pressure receiving portion 348c of the pressure regulating valve body 348 of the pressure regulating valve 336 from the water in the pressure receiving portion side water passage 368 reaches a predetermined value or more, The force by which the water pressure P3 presses the pressure regulating valve body 348 in the axial direction inside (the rear side direction in FIG. 16) exceeds the urging force F3 of the pressure regulating spring 350, and the pressure regulating valve body 348 guides the stop valve seat member 334. It moves inward in the axial direction with respect to the portion 344 (rearward direction in FIG. 16). At this time, the outflow direction of water from the water stop valve seat outflow path 340d is a direction substantially perpendicular to the sliding direction in which the pressure regulating valve body 348 slides, and the pressure regulating valve body 348 flows in the water flow. It does not move in the opposite direction from the front, but moves without receiving great resistance from the water flow so as to cross the water flow vertically. Since the pressure regulating valve body 348 slides in a direction perpendicular to the direction of water flow, compared to the case of sliding in the direction opposite to the direction of water flow, the pressure regulating valve body is less likely to be pushed from the water flow. The resistance from the water flow is reduced. When the pressure regulating valve body 348 moves inward in the axial direction, the relative distance d3 between the rear end side edge 348d of the pressure regulating valve body 348 and the valve seat base 340 of the water stop valve seat member 334 is adjusted. The pressure of water flowing out from the side water passage 330 to the hot water / water faucet body (not shown) from the outlet 324b of the water side water passage 324 through the inlet 324d in the mounting chamber 324c is adjusted.

  On the other hand, when the water pressure P3 received by the pressure receiving portion 348c of the pressure regulating valve body 348 of the pressure regulating valve 336 is less than a predetermined value, the compression load acting in the axial direction of the pressure regulating spring 350 from the pressure regulating valve body 348 is also less than the predetermined value. Therefore, the relative distance between the rear end side edge portion 348d of the pressure regulating valve body 348 and the valve seat base portion 340 of the water stop valve seat member 334 is not compressed in the axial direction. It becomes larger than the relative distance d3 between the rear end side edge 348d of the pressure regulating valve body 348 and the valve seat base 340 of the stop cock valve seat member 334 when the water pressure P3 shown in FIG.

Furthermore, as shown in FIG. 20, the water flow state at the time of high pressure will be described.
When the water pressure in the secondary side water passage 332 rises, the water flows from the secondary side water passage 332 through the flow passage in the open portion 64a of the C-shaped ring 64 and flows into the pressure receiving portion side water passage 368. . When water flows into the pressure receiving part side water passage 368, the force exerted on the pressure receiving part 348c of the pressure regulating valve body 348 of the pressure regulating valve 336 by the pressure receiving part side water passage 368 increases in the axial direction. When the water pressure P4 received by the pressure receiving portion 348c of the pressure regulating valve body 348 of the pressure regulating valve 336 is higher than the water pressure P3 at the middle pressure shown in FIG. The relative distance d4 between the end side edge portion 348d and the valve seat base portion 340 of the stop cock valve seat member 334 is the rear end side edge portion of the pressure regulating valve body 348 when the water pressure P3 shown in FIG. 348d and a relative distance d3 between the valve seat base 340 of the stop valve valve seat member 334, and the rear end side edge portion 348d of the pressure regulating valve body 348 and the valve seat base portion of the stop valve valve seat member 334 The flow path to 340 is narrowed, and pressure regulation is performed by reducing the flow rate of water passing through the pressure regulating valve body 348 of the pressure regulating valve 336.

Further, a case will be described in which the water pressure suddenly increases from the water passage state at the medium pressure in FIG. 16 to change to the water passage state at the high pressure in FIG.
When the water pressure in the secondary side water passage 332 increases abruptly, water tends to suddenly pass from the secondary side water passage 332 through the flow path in the open portion 64a of the C-shaped ring 64.
Water flows from the secondary water passage 332 between the stop cock guide member main body 356 and the side wall portion 348 h of the pressure regulating valve body 348 of the pressure regulating valve 336 toward the annular rear surface 64 c of the C-shaped ring 64. The rear surface 64c of the C-shaped ring 64 receives water resistance because the inflowing water collides, and the rear surface 64c around the open portion 64a of the C-shaped ring 64 is water that rapidly flows into the open portion 64a. The open portion 64a of the C-shaped ring 64 is made to receive water pressure, so that it does not receive water resistance. Accordingly, the C-shaped ring 64 is subjected to pressure nonuniformly around the entire circumference of the C-shaped ring 64. The force received by the C-shaped ring 64 is transmitted to the front inner surface 66a of the concave portion 366 supported by pressing the front surface 64b of the C-shaped ring 64, and is not transmitted to the pressure regulating valve body 348.

When the water pressure in the secondary side water passage 332 increases rapidly, the water flowing in from the secondary side water passage 332 is between the front surface 64b of the C-shaped ring 64 and the front inner surface 366a of the recess 366 and C The flow is blocked between the mold ring 64 and the side wall part 348h of the pressure regulating valve body 348, and attempts to flow into the open part 64a of the C-shaped ring 64. However, the size of the open part 64a of the C-shaped ring 64 is limited. Therefore, it cannot flow rapidly due to resistance, and passes through the opening 64a of the C-shaped ring 64 while being suppressed by a gentle change in flow rate.
The water that has passed through the open part 64 a of the C-shaped ring 64 flows into the pressure receiving part side water passage 368. Since water flows in a gentle flow while receiving water flow resistance at the opening 64a without suddenly flowing into the pressure receiving side water passage 68, the water is received by receiving the water pressure of the pressure receiving side water passage 368. The pressure receiving portion 348c is not suddenly pressurized and is prevented from being actuated suddenly. Therefore, the pressure regulating valve body 48 is moved inward in the axial direction with a change in the range of the gentle movement speed, and the relative distance between the stop cock valve seat member 334 and the valve seat base 340 can be adjusted. Since the body 348 has a high moving speed, the rear end side edge 348d of the pressure regulating valve body 348 is prevented from excessively moving and colliding with the valve seat base 340 to generate a collision sound.
Further, when the pressure regulating valve body 348 slides in the axial direction, the force received by the C type ring 64 from the C-shaped ring 64 is not transmitted to the pressure regulating valve body 348, so that the pressure regulating valve body 348 is C The pressure is adjusted while being linearly slid and moved in the front-rear direction without being caused to vibrate during the sliding movement.

According to the water faucet device 300 with pressure regulating function of the fourth embodiment of the present invention described above, the C ring 64 is disposed in the recessed portion 366 of the water faucet guide member main body 356. The flow path in the open portion 64a that allows water to flow between the secondary side water passage 332 that controls the pressure regulating valve body 348 and the pressure receiving portion side water passage 368 that receives the pressure receiving portion 348c is formed on the entire circumference. Since it is formed in part, the water pressure in the secondary side water passage 332 rises, and the pressure receiving portion where the pressure receiving portion 348c is received from the secondary side water passage 332 where the pressure regulating valve body 348 regulates the water. When flowing into the side water passage 368, the water is resisted from passing through the flow path in the open portion 64a formed in a part of the entire circumference. Therefore, rapid movement of water is suppressed, and water suddenly flows into the pressure receiving side water passage 368 where the pressure receiving portion 348c is received to receive the pressure receiving portion 348c of the pressure adjusting valve body 348, and the pressure adjusting valve body 348 rapidly The pressure regulating valve body 348 can be prevented from excessively moving and colliding with the valve seat base portion 340 of the stop cock valve seat member 334 to produce a collision sound.
Further, since the C-shaped ring 64 is disposed in the recess 366 of the stop cock guide member main body 356, the C-shaped ring 64 passes through the flow path in the opening 64a in which water is formed in a part of the entire circumference. When the pressure is applied, a non-uniform water pressure is applied to the entire circumference of the C-shaped ring 64, and the received pressure is transmitted to the stop cock guide member main body 356 and not transmitted to the pressure regulating valve body 348. By receiving force from the ring 64, the pressure regulating valve body 348 itself is inclined, and adverse effects such as causing vibration when the pressure regulating valve body 348 slides can be suppressed.

  In addition, in the faucet device provided with the water stop faucet device with a pressure regulation function according to the first to fourth embodiments of the present invention described above, as an example, a form applied to a thermostat mixing faucet that is a hot and cold water mixing faucet device Although explained, it is not limited to such a form. For example, for a hot and cold water mixing device, in addition to the thermostatic mixing device, a single that shares both the hot water side and the water side for an on-off valve that switches between water discharge and water stoppage. The present invention may be applied to a lever-type mixing plug, a two-handle type mixing plug in which an on-off valve is provided separately for the hot water side and the water side. Alternatively, it may be applied to a single faucet or the like.

DESCRIPTION OF SYMBOLS 1 Stop cock device 2 Hot water / water mixing faucet device 32 Secondary side water passage 34 Stop cock device body 36 Pressure regulating valve 38 Stop cock guide member 39 Stop cock device body portion 48 Pressure regulating valve body 48c Pressure receiving portion 48f Flange 56 Stop Water faucet guide member main body 58 Filter member 64 C-shaped ring 64a Opening portion 66 Recess 68 Pressure receiving side water passage 100 Water faucet device 138 Water faucet guide member main body 164 Water faucet guide member main body 164 Annular member 164a Annular concave portion 166 Concave portion 170 Stopper portion 200 Water faucet device 238 Water faucet guide member 256 Water faucet guide member main body 264 Annular member 266 Recessed portion 272 Groove portion 300 Water faucet device 332 Secondary side water passage 334 Water faucet valve seat member 336 Pressure valve 338 Stop cock guide member 340 Valve seat base 348 Pressure regulating valve body 348c Pressure receiving part 356 Stop cock guide member main body 366 Recess 368 Part side water passage C Center axis d1 Distance d2 Distance d3 Distance d4 Distance F1 Energizing force F3 Energizing force P1 Water pressure P2 Water pressure P3 Water pressure P4 Water pressure W1 Inlet width W2 Guide surface width

Claims (4)

The water passage between the primary water passage on the water supply source side and the secondary water passage on the discharge side is switched to a water stop state or a water passage state, and the pressure of water flowing out to the secondary side water passage is adjusted. A water stop cock device with a pressure regulating function,
A water faucet device body having a water passage,
A pressure regulation valve member comprising a pressure regulation valve body movably attached to the water stop cock body, and a pressure regulation spring connected to the pressure regulation valve body, wherein the pressure regulation valve body comprises: A pressure receiving portion that receives water pressure from the pressure receiving portion side water passage communicating with the secondary side water passage, and the pressure regulating valve body moves so as to balance the urging force of the pressure regulating spring and the pressure applied to the pressure receiving portion; The pressure regulating valve member;
A guide member that surrounds the outer periphery of the pressure regulating valve body and guides the axial movement of the pressure regulating valve body,
The guide member has its inner circumference recessed recess, and an annular member disposed within said recess, and more to the recess and the annular member, the secondary-side flow passage and the pressure receiving portion side water passage Is formed in a part of the entire circumference , whereby when the water pressure in the secondary side water passage is increased, the water passage is allowed to pass through the water passage. A water stop cock device with a pressure adjusting function, characterized in that an increase in water pressure received by the pressure receiving portion is suppressed .   The stop valve device with a pressure regulating function according to claim 1, wherein the pressure regulating valve body of the pressure regulating valve member has a flange projecting in a circumferential direction at an end portion thereof.   A faucet device comprising the water stop device with a pressure regulating function according to claim 1 or 2.   A hot and cold water mixing apparatus comprising the water stop apparatus with a pressure regulating function according to claim 1.

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