JP7675604B2 - Faucet equipment - Google Patents

Description

This disclosure relates to a water faucet device.

A water faucet device, for example, as described in Patent Document 1 below, is known in the past. A pressure relief valve is provided in the main body of this water faucet device. The pressure relief valve protrudes outward from the main body. When the water pressure inside the main body suddenly increases, the pressure relief valve opens the flow path of the main body to the outside of the main body. This makes it possible to prevent damage to the main body due to water pressure.

JP 2019-82069 A

The pressure relief valve of the faucet device as described above protrudes outward from the main body, and therefore tends to affect the appearance of the faucet device. There is a demand for a way to release excess water pressure to the outside without affecting the appearance of the faucet device.

This disclosure was completed based on the above circumstances, and aims to provide a faucet device that can release excess water pressure to the outside without affecting the appearance of the faucet device.

The faucet device disclosed herein comprises a main body having a water passage therein, a mixing section disposed inside the main body for mixing hot and cold water flowing into the water passage, an opening/closing section disposed inside the main body for opening and closing the water passage downstream of the mixing section, a discharge section for discharging the mixed water mixed in the mixing section to the outside when the water passage is opened by the opening/closing section, and a pressure relief section disposed inside the main body for releasing the water pressure into the internal space of the main body when the water pressure in the water passage reaches or exceeds a predetermined value, the pressure relief section being disposed downstream of the mixing section, and the internal space being connected to the discharge section.

FIG. 1 is a perspective view showing a water faucet device according to a first embodiment; FIG. 1 is an exploded perspective view showing a water faucet device. Cross-sectional view of a water faucet device An enlarged cross-sectional view of the pressure relief portion in a closed state. FIG. 2 is an enlarged perspective view of a portion of the pressure relief portion; Enlarged cross-sectional view of the pressure relief portion in an open state FIG. 11 is an enlarged cross-sectional view showing a pressure relief portion of a water faucet device according to a second embodiment. Enlarged cross-sectional view of the pressure relief portion in an open state

<Embodiment 1>
1, the faucet device M includes a main body 10, a discharge pipe 12, a shower elbow 13, a first crank leg 14, a second crank leg 15, a first operating part 16, and a second operating part 17. The faucet device M is a mixer faucet that is attached to a wall surface of a bathroom or the like by the first crank leg 14 and the second crank leg 15.

Hereinafter, for each component, the side where the second operating part 17 is provided is referred to as the left side, the side where the first operating part 16 is provided is referred to as the right side, the side where the discharge pipe 12 is provided is referred to as the front side, and the side where the shower elbow 13 is provided is referred to as the rear side. The positive side of the X axis in Fig. 1 indicates the right side, the negative side of the X axis indicates the left side, the positive side of the Z axis indicates the front side, and the negative side of the Z axis indicates the rear side. The X axis is parallel to the axial direction of the main body 10. "Parallel" includes a state where the two are roughly parallel in addition to a state where the two are strictly parallel. The positive side of the Y axis in Fig. 1 indicates the upper side when the faucet device M is attached to a wall surface, and the negative side of the Y axis indicates the lower side when the faucet device M is attached to a wall surface.

The main body 10 has a long shape in the left-right direction. The discharge pipe 12 extends forward from the underside of the main body 10. The tip of the discharge pipe 12 is provided with a water outlet 18. The shower elbow 13 is connected to the rear side of the main body 10. A shower hose (not shown) is connected to the shower elbow 13. A shower head (not shown) is connected to the tip of the shower hose.

The first crank leg 14 is connected to the right of the center in the left-right direction on the rear surface of the main body 10. The first crank leg 14 is a pipe for supplying water. The inside of the first crank leg 14 is a water supply passage. The second crank leg 15 is connected to the left of the center in the left-right direction on the rear surface of the main body 10. The second crank leg 15 is a pipe for supplying hot water. The inside of the second crank leg 15 is a hot water supply passage.

The first operating unit 16 is attached to the right end of the main body 10. The first operating unit 16 is an operating unit that switches between water discharge and water stop of the faucet device M, switches between water discharge on the water discharge pipe 12 side and water discharge on the shower side, and adjusts the amount of water discharged when water is discharged. The first operating unit 16 is operated by rotating.

The second operating unit 17 is attached to the left end of the main body 10. The second operating unit 17 is an operating unit that adjusts the temperature of the water discharged from the faucet device M. The second operating unit 17 is operated by rotating it.

As shown in FIG. 3, the main body 10 has a water passage 19 inside. The water passage 19 is connected to the downstream side of the water supply passage of the first crank leg 14 and the hot water supply passage of the second crank leg 15. The water passage 19 has a water passage, a hot water passage, and a passage for mixed water in which water and hot water are mixed. The water passage and the hot water passage are formed upstream of the mixer 40, which will be described later. The mixed water passage is formed downstream of the mixer 40.

As shown in FIG. 2, the main body 10 has a cylindrical shape that is long in the left-right direction. Inside the main body 10, a space 10S that is long in the axial direction is formed. A first opening 21 and a second opening 22 are formed at both the left and right ends of the main body 10. The first opening 21 opens to the right side of the main body 10. The second opening 22 opens to the left side of the main body 10.

As shown in FIG. 3, the main body 10 has a double structure having an outer pipe 23 and an inner pipe 24. The outer pipe 23 is made of metal. The outer pipe 23 is cylindrical. The inner surface of the outer pipe 23 is a smooth surface without any irregularities. The outer pipe 23 has an opening (not shown) that communicates with the water supply channel. A passage for water flowing in from the water supply channel is formed between the outer pipe 23 and the inner pipe 24.

The main body 10 has a discharge pipe side communication port 33 and a shower side communication port (not shown). The shower side communication port is connected to the shower elbow 13. The mixed water flows out from the shower side communication port to the shower head and is discharged to the outside. The discharge pipe side communication port 33 is connected to the discharge pipe 12. The mixed water flows out from the discharge pipe side communication port 33 to the discharge pipe 12 and is discharged to the outside from the discharge port 18. The discharge pipe 12 and the shower head are the discharge parts that discharge the mixed water to the outside.

The discharge pipe side communication port 33 opens downward on the underside of the middle part of the main body 10 in the left-right direction. The discharge pipe side communication port 33 is formed in the inner pipe 24. A tubular member 34 is connected to the discharge pipe side communication port 33. The tubular member 34 penetrates the outer pipe 23. The tubular member 34 protrudes to the outside from the outer peripheral surface of the main body 10. The tubular member 34 is connected to the discharge pipe 12.

The inner pipe 24 is made of resin. The inner pipe 24 is cylindrical. The inner pipe 24 forms a space 10S, a first opening 21, and a second opening 22. The first opening 21 is provided for disposing an opening/closing section 50 inside the main body section 10. The second opening 22 is provided for disposing a mixing section 40 inside the main body section 10. The inner pipe 24 is formed with a hot water side opening (not shown) that directly communicates with the hot water supply passage, and a cold water side opening (not shown) that communicates with the water passage. The hot water side opening and cold water side opening are provided to the left of the center of the inner pipe 24 in the left-right direction.

A pipe seal member 25 is disposed between the outer pipe 23 and the inner pipe 24. The pipe seal members 25 are disposed at both the left and right ends of the outer pipe 23 and the inner pipe 24. The water passage is sealed by the left and right pipe seal members 25.

The mixing section 40, the opening/closing section 50, and the pressure relief section 60 are arranged inside the main body section 10. The mixing section 40, the opening/closing section 50, and the pressure relief section 60 are arranged on an axis L that extends in the longitudinal direction of the space 10S of the main body section 10. The axis L is parallel to the extension direction of the opening/closing operating shaft 53 described later.

As shown in FIG. 3, the mixing unit 40 is disposed on the left side of the main body 10. The mixing unit 40 is inserted into the inside of the inner tube 24 from the second opening 22 and assembled. The mixing unit 40 has a thermostatic hot and cold water mixing valve.

The mixing section 40 is fixed to the inner tube 24 by a second end member 26 and a second fixing member 27. The second end member 26 is disposed on the left side of the mixing section 40. The second fixing member 27 fits onto the outer periphery of the second end member 26. The second fixing member 27 is fixed to the left end of the inner tube 24.

A mixing section seal member 28 is disposed between the mixing section 40 and the main body section 10. The mixing section seal member 28 is annular and is in close contact with the outer peripheral surface of the mixing section 40 and the inner peripheral surface of the inner tube 24. A plurality of mixing section seal members 28 are disposed at predetermined intervals in the left-right direction.

The inner pipe 24 has a wall 24W between the space in which the mixing section 40 is arranged and the space in which the opening/closing section 50 is arranged. An outlet 45 is formed in the wall 24W. The mixed water that has passed through the mixing section 40 flows out through the outlet 45 to the opening/closing section 50 side.

As shown in FIG. 3, the opening/closing unit 50 is disposed on the right side of the main body 10. The opening/closing unit 50 is inserted into the inside of the inner tube 24 from the first opening 21 and assembled. The opening/closing unit 50 opens and closes the passage of the mixed water downstream of the mixing unit 40.

The opening/closing unit 50 has an opening/closing case 51, an opening/closing valve body 52, an opening/closing operation shaft 53, and a first operation unit 16. The opening/closing case 51 has an inner case 51A and an outer case 51B. The inner case 51A and the outer case 51B are both cylindrical. The outer case 51B forms the outer peripheral surface of the opening/closing case 51.

The opening and closing case 51 has an inlet 54, a discharge pipe side outlet 55, and a shower side outlet (not shown). The inlet 54 is formed at the left end of the opening and closing case 51. The inlet 54 is adjacent to the outlet 45 of the inner pipe 24. The shower side outlet is connected to the shower elbow 13.

The discharge pipe side outlet 55 is connected to the discharge pipe 12. The discharge pipe side outlet 55 has an inner opening 55A and an outer opening 55B. In other words, the inner opening 55A to the outer opening 55B is the discharge pipe side outlet 55. The discharge pipe side outlet 55 is an internal space S that is connected to the discharge pipe 12 via the discharge pipe side communication port 33. The inner opening 55A faces the outer peripheral surface of the opening/closing valve body 52. The inner opening 55A is divided into multiple openings. The outer opening 55B faces the inner peripheral surface of the inner pipe 24.

The inner opening 55A of the discharge pipe side outlet 55 is surrounded by an inner opening seal member 56. The inner opening seal member 56 is an O-ring large enough to surround all of the inner openings 55A. The inner opening seal member 56 is attached to an inner mounting groove 57 formed in the inner case 51A (see FIG. 3). The inner opening seal member 56 is in close contact with the opening/closing valve body 52 and the outer case 51B.

The on-off valve body 52 is a cylinder valve body. The on-off valve body 52 is housed inside the on-off case 51. The on-off valve body 52 has a discharge pipe side opening and a shower side opening (not shown). The discharge pipe side opening is formed in a position that overlaps with the discharge pipe side outlet 55 of the opening and closing case 51 when the on-off valve body 52 is rotated. The shower side opening is formed in a position that overlaps with the shower side outlet of the opening and closing case 51 when the on-off valve body 52 is rotated.

The opening/closing operation shaft 53 connects the first operation part 16 and the opening/closing valve body 52. The opening/closing operation shaft 53 is disposed on the axis L of the space 10S of the main body 10. The rotation axis of the opening/closing valve body 52 is parallel to the axis L. The axis of the opening/closing operation shaft 53 is the rotation axis of the opening/closing valve body 52. The opening/closing operation shaft 53 transmits the operation of the first operation part 16 to the opening/closing valve body 52.

The opening/closing valve body 52 rotates when the first operating part 16 is operated. As a result, when the discharge pipe side opening and the discharge pipe side outlet 55 are connected, the mixed water flows out to the discharge pipe 12 side. When the shower side opening and the shower side outlet are connected, the mixed water flows out to the shower side. The amount of water discharged is increased or decreased depending on the degree of overlap between the discharge pipe side opening and the discharge pipe side outlet 55 and between the shower side opening and the shower side outlet. When neither the discharge pipe side opening and the discharge pipe side outlet 55 nor the shower side opening and the shower side outlet are connected, the water faucet device M is shut off.

The opening/closing part 50 is fixed to the inner tube 24 by a first end member 29 and a first fixing member 31. The first end member 29 is disposed on the right side of the opening/closing part 50. The first fixing member 31 fits onto the outer periphery of the first end member 29. The first fixing member 31 is fixed to the right end of the inner tube 24.

A sealing member 32 for the opening/closing part is disposed between the opening/closing part 50 and the inner tube 24. The sealing member 32 for the opening/closing part is annular and is in close contact with the outer peripheral surface of the opening/closing case 51 and the inner peripheral surface of the inner tube 24. A plurality of sealing members 32 for the opening/closing part are disposed at a predetermined interval in the left-right direction. The sealing members 32 for the opening/closing part are disposed on both the left and right sides of the outer opening 55B of the discharge pipe side outlet 55.

The pressure relief section 60 is disposed downstream of the mixing section 40. The pressure relief section 60 is provided on the primary side of the opening/closing section 50. The primary side of the opening/closing section 50 is upstream of the discharge pipe side opening and the shower side opening that are opened and closed by the rotation of the opening/closing valve body 52. The secondary side of the opening/closing section 50 is downstream of the discharge pipe side opening and the shower side opening that are opened and closed by the rotation of the opening/closing valve body 52. The pressure relief section 60 releases the water pressure of the water passage 19 on the primary side of the opening/closing section 50 to the internal space S when the water pressure of the water passage 19 on the primary side of the opening/closing section 50 becomes equal to or greater than a predetermined value.

As shown in FIG. 4, the pressure relief section 60 has an elastic body 61, a relief opening 62, and an on-off valve body 52 as a moving member. The on-off valve body 52 moves toward the first opening 21 when the water pressure in the water passage 19 on the primary side of the on-off section 50 reaches or exceeds a predetermined value. The on-off operating shaft 53 moves together with the on-off valve body 52.

The elastic body 61 is sandwiched between a case protrusion 63 provided on the opening/closing case 51 and a flange 64 provided on the opening/closing operation shaft 53. The elastic body 61 is a coil spring. The elastic body 61 is attached around the opening/closing operation shaft 53. The elastic force of the elastic body 61 acts in a direction that moves the opening/closing valve body 52 to the left.

The case protrusion 63 has a first surface 65 perpendicular to the axis L. The flange 64 has a second surface 66 perpendicular to the axis L. "Perpendicular" includes a state where it is roughly perpendicular in addition to a state where it is strictly perpendicular. The elastic body 61 expands and contracts in a direction parallel to the axis L between the first surface 65 and the second surface 66.

The relief opening 62 is formed in the opening/closing valve body 52. As shown in FIG. 5, the relief opening 62 has an elliptical shape that is long in the left-right direction. The relief opening 62 penetrates the opening/closing valve body 52 in the inward-outward direction. The left-right dimension D1 of the relief opening 62 is larger than the diameter dimension D2 of the inner opening seal member 56.

The function of the pressure relief section 60 will now be described. When the water pressure in the primary water passage 19 of the opening/closing section 50 is lower than a predetermined value, the pressure relief section 60 closes the primary water passage 19 of the opening/closing section 50 as shown in FIG. 4. This state is called the closed state of the pressure relief section 60. When the pressure relief section 60 is in the closed state, the entire inner opening seal member 56 is in close contact with the opening/closing valve body 52.

For example, when the water pressure in the primary water passage 19 of the opening/closing unit 50 becomes higher than a predetermined value due to freezing of water, the force acting to the right on the opening/closing operation shaft 53 increases. As a result, the opening/closing operation shaft 53 moves to the right while contracting the elastic body 61. The opening/closing valve body 52 moves to the right together with the opening/closing operation shaft 53. The relief opening 62 of the opening/closing valve body 52 is disposed at the position of the inner opening seal member 56, as shown in Figures 5 and 6. As a result, the seal between the opening/closing valve body 52 and the outer case 51B is broken, and the primary water passage 19 of the opening/closing unit 50 is opened. This state is called the open state of the pressure relief section 60. The water pressure in the primary water passage 19 of the opening/closing unit 50 is released from the relief opening 62 to the discharge pipe side outlet 55 and becomes lower. At this time, the mixed water in the primary water passage 19 of the opening/closing unit 50 leaks out to the discharge pipe side outlet 55.

When the water pressure in the water passage 19 on the primary side of the opening/closing unit 50 is reduced by the pressure relief unit 60, the flange 64 is pushed to the left by the elastic force of the elastic body 61, and the opening/closing operating shaft 53 moves to the left together with the opening/closing valve body 52. As a result, the relief opening 62 shifts to the left from the inner opening seal member 56. The entire inner opening seal member 56 comes into close contact with the opening/closing valve body 52, and the water passage 19 on the primary side of the opening/closing unit 50 is sealed and closed.

According to the embodiment configured as described above, the following effects are achieved. The water faucet device M includes a main body 10, a mixing section 40, an opening/closing section 50, a water discharge pipe 12, and a pressure relief section 60. The main body 10 has a water passage 19 inside. The mixing section 40 is arranged inside the main body 10 and mixes hot and cold water that flows into the water passage 19. The opening/closing section 50 is arranged inside the main body 10 and opens and closes the water passage 19 downstream of the mixing section 40. When the water passage 19 is opened by the opening/closing section 50, the water discharge pipe 12 discharges the mixed water mixed in the mixing section 40 to the outside. The pressure relief section 60 is arranged inside the main body 10 and releases the water pressure to the internal space S of the main body 10 when the water pressure of the water passage 19 on the primary side of the opening/closing section 50 becomes equal to or greater than a predetermined value. The pressure relief section 60 is arranged downstream of the mixing section 40. The internal space S is connected to the discharge pipe 12.

According to this configuration, the pressure relief section 60 releases water pressure into the internal space S of the main body 10, and therefore does not affect the external appearance of the main body 10. Since the internal space S of the main body 10 is connected to the discharge pipe 12, excess water pressure in the primary water passage 19 of the opening/closing section 50 is released to the outside through the discharge pipe 12. Therefore, excess water pressure can be released to the outside without affecting the external appearance of the faucet device M.

The pressure relief section 60 has an on-off valve body 52 that moves in the longitudinal direction of the space 10S of the main body 10 when the water pressure in the water passage 19 on the primary side of the on-off section 50 reaches or exceeds a predetermined value. The on-off valve body 52 moves in the extension direction of the rotation axis of the on-off valve body 52. The pressure relief section 60 releases the water pressure to the internal space S by the movement of the on-off valve body 52. With this configuration, the on-off valve body 52 moves in the longitudinal direction of the space 10S of the main body 10, allowing the main body 10 to be made compact.

<Embodiment 2>
Next, a water faucet device according to a second embodiment of the present disclosure will be described with reference to Figures 7 and 8. The water faucet device M of this embodiment differs from the first embodiment in that the opening/closing unit 70 is a movable member. Note that the same components as those of the first embodiment are given the same reference numerals and redundant description will be omitted.

The faucet device M includes a main body 10, a discharge pipe 12, a shower elbow 13, a first crank leg 14, a second crank leg 15, a first operating part 16, and a second operating part 17, as in the first embodiment. The main body 10 has a double structure with an outer pipe 23 and an inner pipe 24, as in the first embodiment. Inside the main body 10, a mixing part 40 and an opening/closing part 70 are arranged, as in the first embodiment. The opening/closing part 70 includes an opening/closing case 51, an opening/closing valve body 52, an opening/closing operation shaft 53, and a first operating part 16, as in the first embodiment. The opening/closing part 70 moves toward the first opening 21 when the water pressure in the water passage 19 on the primary side of the opening/closing part 70 reaches or exceeds a predetermined value.

The pressure relief section 71 has an elastic body 72, an attachment member 73, and an opening/closing section 70 as a movable member.

The mounting member 73 is attached to the right end of the opening/closing unit 70. The mounting member 73 is cylindrical with an insertion hole 74 formed therein. The opening/closing operation shaft 53 passes through the insertion hole 74 and protrudes to the first operation unit 16. The mounting member 73 moves together with the opening/closing unit 70.

The elastic body 72 is sandwiched between the mounting member 73 and the first end member 29. The elastic body 72 is a coil spring, as in the first embodiment. The elastic body 72 is attached around the mounting member 73. The elastic force of the elastic body 72 acts in a direction that moves the opening/closing portion 70 to the left.

The mounting member 73 has a first surface 75 perpendicular to the axis L. The first end member 29 has a second surface 76 perpendicular to the axis L. "Perpendicular" includes a state in which it is roughly perpendicular in addition to a state in which it is strictly perpendicular. The elastic body 72 expands and contracts in a direction parallel to the axis L between the first surface 75 and the second surface 76.

When the water pressure in the primary water passage 19 of the opening/closing unit 70 is lower than a predetermined value, the pressure relief unit 71 closes the primary water passage 19 of the opening/closing unit 70 as shown in FIG. 7. When the pressure relief unit 71 is closed, all the opening/closing unit seal members 32 are in close contact with the inner circumferential surface of the inner pipe 24. When the water pressure in the primary water passage 19 of the opening/closing unit 70 becomes higher than a predetermined value, the rightward force applied to the opening/closing unit 70 increases, and the opening/closing unit 70 moves to the right while compressing the elastic body 72. The opening/closing unit seal member 32 moves to the right together with the opening/closing unit 70, and as shown in FIG. 7, the opening/closing unit seal member 32 at the left end faces the discharge pipe side communication port 33. A gap is formed between the opening/closing unit 70 and the inner pipe 24, and the water pressure in the primary water passage 19 of the opening/closing unit 70 is released to the discharge pipe side communication port 33 and decreases.

When the water pressure in the water passage 19 on the primary side of the opening/closing unit 70 is reduced by the pressure relief unit 71, the opening/closing unit 70 is pushed to the left by the elastic force of the elastic body 72 and moves to the left. This causes the pressure relief unit 71 to return to a closed state. All of the opening/closing unit seal members 32 come into close contact with the inner circumferential surface of the inner tube 24, and the primary side water passage 19 of the opening/closing unit 70 is sealed.

As described above, in this embodiment, as in embodiment 1, the pressure relief section 71 releases water pressure into the internal space S of the main body 10, and therefore does not affect the appearance of the main body 10. Since the internal space S of the main body 10 is connected to the discharge pipe 12, excess water pressure in the primary water passage 19 of the opening/closing section 70 is released to the outside through the discharge pipe 12. Therefore, excess water pressure can be released to the outside without affecting the appearance of the faucet device M.

The pressure relief section 71 has an opening/closing section 70 that moves in the longitudinal direction of the space S of the main body section 10 when the water pressure in the water passage 19 on the primary side of the opening/closing section 70 reaches or exceeds a predetermined value. The opening/closing section 70 moves in the extension direction of the rotation axis of the opening/closing valve body 52. The pressure relief section 71 releases the water pressure into the internal space S by the movement of the opening/closing section 70. With this configuration, the opening/closing section 70 moves in the longitudinal direction of the space S of the main body section 10, allowing the main body section 10 to be made compact.

<Other embodiments>
The present disclosure is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included within the technical scope of the present disclosure.
(1) In the above embodiment, the excess water pressure in the water passage 19 on the primary side of the opening/closing unit 50 (70) is released to the outside through the water outlet pipe 12. This is not limiting, and the excess water pressure in the water passage on the primary side of the opening/closing unit may be released to the shower side.
(2) In the above embodiment, the first operating unit 16 and the second operating unit 17 are rotated. However, the present invention is not limited to this and the first operating unit and the second operating unit may be pushed.
(3) In the above embodiment, the water faucet device M can select either water spouting from the water outlet pipe 12 or water spouting in a shower. However, the water faucet device may be one that only spouts water from the water outlet pipe, or one that only spouts water in a shower.
(4) In the above embodiment, the main body 10 is exposed to the outside. However, this is not limiting and a cover member may be attached to the main body.
(5) In the above embodiment, the main body 10 has a double structure including the outer tube 23 and the inner tube 24. However, the present invention is not limited to this, and the main body may be configured as a single tube.
(6) In the above embodiment, the faucet device M is a mixer faucet that is attached to a wall surface of a bathroom, etc. However, the faucet device is not limited to this, and may be, for example, a faucet device that is attached to a kitchen or a washstand.
(7) In the above embodiment, the outer shape of the main body 10 is exemplified. However, the outer shape of the main body may be any shape as long as a long space is formed inside the main body. For example, the outer shape of the main body may be a flat rectangular shape.

M...water faucet device, S...internal space, 10...main body, 10S...space, 12...discharge pipe (discharge section), 19...water passage, 40...mixing section, 50...opening/closing section, 52...opening/closing valve body (valve body), 53...opening/closing operation shaft (moving member), 60, 71...pressure relief section, 70...opening/closing section (moving member)

Claims (3)

A main body having a water passage therein;
A mixing section arranged inside the main body section and mixing the hot and cold water flowing into the water passage;
An opening/closing section that is disposed inside the main body and opens and closes the water passage downstream of the mixing section;
a discharge part that discharges the mixed water mixed in the mixing part to the outside when the water passage is opened by the opening/closing part;
a pressure relief portion that is disposed inside the main body portion and releases the water pressure into an internal space formed inside the main body portion when the water pressure in the water passage reaches or exceeds a predetermined value;
The pressure relief section is disposed downstream of the mixing section,
A water faucet device, wherein the internal space is in communication with the discharge portion. An axially long space is formed inside the main body,
The faucet device as described in claim 1, wherein the pressure relief section has a movable member that moves in the longitudinal direction of the space when the water pressure of the water passage exceeds a predetermined value, and the water pressure is relieved into the internal space by the movement of the movable member. The opening/closing unit has a valve body that is rotated,
A faucet device as described in any one of claims 1 to 2, wherein the pressure relief section has a movable member that moves in the extension direction of the rotation axis of the valve body when the water pressure in the water passage reaches or exceeds a predetermined value, and the water pressure is released into the internal space by movement of the movable member.

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