JPH0124952B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an automatic mixing faucet with a water stop valve.

More specifically, a thermostat that automatically controls the temperature of the mixed water discharged from the discharge port to a constant temperature, and a temperature control handle that sets the temperature of the mixed water as desired are incorporated into the valve box, and This invention relates to an improvement in an automatic mixing faucet equipped with a water stop valve, in which a stop valve (water stop valve) for opening and closing a discharge port for discharging mixed water is built into a valve box.

The above-mentioned automatic mixing faucet with a water shutoff valve has a configuration in which the valve mechanism and the operating handle are arranged coaxially with the temperature adjustment handle in order to facilitate the assembly of the valve mechanism that performs the water shutoff operation. This is desirable, and the applicant of the present invention has proposed such an automatic mixing faucet with a water stop valve in Utility Model Application No. 136892/1983.

However, this device had a single discharge port for discharging the mixed water, and discharged the mixed water only into the drain.

It is desirable for a mixing faucet to discharge mixed water not only from the sink but also from the shower.To do this, it is necessary to have two outlets, one that leads the mixed water to the sink and one that leads to the shower. It is necessary to provide a switch valve in the valve box, a switching valve to switch the discharge ports, and a water discharge valve to stop the discharge from the discharge ports, and these must be installed together with the temperature adjustment handle. Since it is difficult to operate with a single handle, there is a problem of poor operability, and the valve mechanism for switching and shutting off the water has been designed to facilitate assembly. However, there is a problem in that it is difficult to arrange it coaxially with the temperature adjustment handle.

The present invention was made in order to solve these problems, and the switching operation of the two discharge ports for discharging mixed water and the water-stopping operation of each of these two discharge ports are performed coaxially with the temperature adjustment handle. The object of the present invention is to provide a new means for carrying out operations using a single handle assembled on the top.

In the present invention, as a means for achieving this object, a mixing valve chamber communicating with a hot water inlet and a water inlet is provided at one end in the axial direction of the valve box formed in a cylindrical shape, and the mixing valve chamber is provided inside the valve box. A mixing valve whose operating direction is along the axial direction is housed in the body of the valve box.
An inner cylinder whose axial direction is aligned with the axial direction and whose inner cavity communicates with the mixing valve chamber is provided, and a thermoelement that is controlled according to the temperature of the mixed water flowing through the mixing valve is housed inside the inner cylinder. At the same time, a communication port is provided in the cylindrical wall of this inner cylinder to communicate with two mixed water discharge ports installed in the body of the valve box with a phase difference in the axial direction. is equipped with a cylindrical slide valve that alternately switches communication between the communication port and the two mixed water discharge ports and blocks communication therebetween by sliding in the axial direction, and the slide valve an operating handle provided on the outer periphery of the body of the valve box so as to rotate in the axial direction, the other end of the valve box in the axial direction being linked to move in the axial direction when the operating handle is rotated; A temperature adjustment handle that rotates in the axial direction as a rotation axis is provided on the side,
The present invention proposes an automatic mixing faucet with a water stop valve in which the temperature adjustment handle is connected to a temperature adjustment screw that displaces the supporting position of the thermoelement.

Next, an example of implementation will be described in detail with reference to the drawings.

In FIG. 1, reference numeral a denotes a valve box, which includes an outer box 1 formed into a vertically long cylindrical shape and a vertically long cylindrical inner box 2 which can be inserted into and removed from the outer box 1 like a cartridge.
It becomes more. The outer box 1 has a hot water inlet 10 at the bottom.
and a water inlet 11 are formed with a phase difference between the top and bottom, and the body has two discharge ports 1, an upper discharge port 12 and a lower discharge port 13, for discharging mixed water.
2 and 13 are arranged vertically with a phase difference. The inner box 2 is provided with communication ports 20 and 21 at the height positions corresponding to the hot water inlet 10 and the water inlet 11, and also has communication ports 20 and 21 communicating with the hot water inlet 10 and the water inlet 11, and the upper outlet 12 and the lower outlet. At a height position corresponding to the outlet 13, there are communicating ports 22, 2 that communicate with the outlet 13.
3 are provided respectively.

3 is a mixing valve that changes and controls the mixing of hot water supplied from the hot water inlet 10 and water supplied from the water inlet 11; The piston 4 of the thermo-element 4, which will be described later, is pushed up from below by a spring 30 and
It is pushed down by an extrusion pressure of 0, and by the action of pushing out the piston 40 of the thermoelement 4 and the spring pressure of the spring 30, it moves up and down to change the mixing ratio of hot water and water.

Reference numeral 5 denotes an inner cylinder disposed at the axial center of the inner box 2 of the valve box a, with the axial direction being the vertical direction, and the lower end side of the inner cavity communicates with the mixing valve chamber 3a. The upper end side of the cavity is closed by a lid 50,
As a result, the inner cavity of the inner cylinder 5 constitutes a flow path for mixed water, and the cylinder wall 5a has an upper communication port 51 in an upper part and a lower part. A lower communication port 51' is formed respectively.
The thermoelement 4 is housed in the center of the inner cavity of the inner cylinder 5 with the lower end of the thermosensor 4a, which is the body thereof, connected to the mixing valve 3;
Guide cylinder part 4 continuous to the upper end side of the temperature sensing part 4a
b is watertightly fitted into a through hole provided at the axial center of the lid 50 of the inner cylinder 5 and protrudes upward from the through hole, and a guide cylinder portion 4b projects upward from the through hole.
A piston 40 that protrudes freely in and out from the top of the protruding end of the spring support 6 assembled to the upper part of the valve box a
It collides with 0.

The spring supporter 60 is supported in a cap-shaped spring case 62 that accommodates a spring 61 so as to be slidable up and down. A cylindrical holder 6 that is screwed onto the inner circumferential side and installed at the top of the valve box a.
3, which is supported by a female screw 64 that can be slidably fitted up and down, and which is further screwed into a cylindrical temperature adjustment screw 65 that can be rotatably fitted into the holder 63. The rotating shaft portion 66 of the temperature adjusting screw 65 is rotatably supported by the holder 63, so that the temperature adjusting screw 65 is assembled in a fixed position on the upper part of the valve case a. By rotating the thermo element 4, its position is displaced up and down, thereby changing and adjusting the operating position of the thermoelement 4 described above. A rotating shaft portion 66 that rotates the temperature adjustment screw 65 described above is provided.
is positioned so that the axis of the inner cylinder 5 and the axis of rotation are aligned.

Reference numeral 7 denotes a temperature adjustment handle for rotating the temperature adjustment screw 65, which is formed in the shape of a cap to cover the outer periphery of the holder 63, and whose axial center portion is screwed into the rotating shaft portion 66 of the temperature adjustment screw 65. , are integrally connected by being fixed by a set screw 70, and rotate about the rotating shaft portion 66 as a rotating shaft, thereby raising and lowering the female screw 64 and displacing the position of the spring support 60 up and down. , changes and adjusts the set temperature set in the thermoelement 4.

Reference numeral 8 denotes a cylindrical slide valve fitted on the outer periphery of the inner cylinder 5 so as to be slidable up and down.
Annular valve members 81 and 82, which move in and out of the slide valve body 80 in the vertical direction while being regulated within a certain range of inflow and outflow, are urged to protrude upward and downward by springs 83 and 84, respectively. There is a
The protruding edges 81 of each of the valve members 81 and 82
a, 82a (FIGS. 2 and 3) are above the upper communication port 51 and below the lower communication port 51' provided in the cylinder wall 5a of the inner cylinder 5 on the outer peripheral side of the inner cylinder 5. Pressing against valve seats 85 and 86 provided at the respective positions,
The upper communication port 51 and the lower communication port 51'
It is designed to block each of them. The amount of movement of the valve members 81 and 82, which are made to move in and out, is such that when the slide valve main body 80 is lowered as shown in FIG. 2 and the upper valve member 81 is separated from the valve seat 85, the lower valve member 82 compresses the spring 84 to be in the pushed-in state, and when the slide valve body 80 is moved upward as shown in FIG. 3 and the lower valve member 82 is separated from the valve seat 86, the upper valve The member 82 compresses the spring 84 by an amount such that the member 82 is in a pushed-in state.

Reference numeral 9 denotes an operation handle for moving the slide valve 8 up and down, and its base end 90 is formed in an annular shape, and is screwed onto the upper end of the inner cylinder 5 described above so as to be attached to the base end of the holder 63. It is rotatably fitted onto the outer periphery of the fitting shaft portion 53 into which the fitting shaft 63a is screwed, and is provided coaxially with the temperature adjustment handle 7 described above. The annular base end portion 90 is formed into a cylindrical body 91 whose lower end side extends further downward, and the outer circumferential surface of the slide valve 8 and the inner circumferential surface of the cartridge-shaped inner box 2 are connected to each other. A threaded portion 87 provided on the outer circumferential surface of the slide valve main body 80 of the slide valve 8 is fitted into a cylindrical cavity W formed between the two, and a threaded portion 92 provided on the inner circumferential surface of the cylindrical body 91. As a result, the slide valve 8 slides up and down by the rotation of the operation handle 9, and the operation handle 9 is coaxially connected to the temperature adjustment handle 7 and the slide valve 8. It is designed to be installed.

Note that the threaded portion 92 provided on the cylindrical body 91 of the operation handle 9 and the threaded portion 8 provided on the slide valve body 80
7 rotates the operating handle 9 clockwise and counterclockwise, respectively.
By rotating within a range of 180 degrees, the slide valve 8 can be raised and lowered by a predetermined amount.

The embodiment device configured in this manner operates as follows.

The state shown in FIG. 1 is a state in which the operating handle 9 provided coaxially with the temperature adjustment handle 7 is placed in a neutral position, and the outer periphery of the inner cylinder 5 housing the thermoelement 4 is connected to the operating handle 9. The slide valve 8 provided in the inner cylinder 5 is located at an intermediate position between the upper and lower sides, and closes both the upper communication port 51 and the lower communication port 51' provided at the upper and lower parts of the cylindrical wall 5a of the inner cylinder 5, and prevents the mixed water from flowing. Both of the two discharge ports 12 and 13 are in a water-stopped state.

From this state, when the operating handle 9 is rotated to either the right or the left, the slide valve 8 provided on the outer periphery of the inner cylinder 5 housing the thermoelement 4 descends as shown in Fig. 2. While the lower communication port 51' leading to the lower discharge port 13 is closed,
The upper communication port 51 that communicates with the upper discharge port 12 is opened and its opening degree is increased to increase the amount of mixed water discharged.
By returning the water to the neutral position, water is stopped.

Furthermore, as the operating handle 9 is rotated in the opposite direction, the slide valve 8 rises as shown in Fig. 3.
A communication port 51' that communicates with the lower discharge port 13 while keeping the upper communication port 51 that communicates with the upper discharge port 12 closed.
When the operating handle 9 is returned to its previous position, the water is stopped, and the operating handle 9, which is coaxial with the temperature adjustment handle 7, allows the mixed water to flow. It becomes possible to switch between the two discharge ports 12 and 13 and to shut off water.

In addition, by rotating the operating handle 9, the slide valve 8
is moved to the position shown in FIG. 2 or FIG. When the adjustment handle 7 is rotated in the forward or reverse direction, the temperature adjustment screw 65 is rotated and the female screw 64 screwed therein is displaced upward or downward in FIG. By vertically displacing the spring support fittings 60 that abut against each other, the control operation of the mixing valve 3 connected to the lower end of the thermoelement 4 is changed, and the hot water inlet 10 and the water inlet 11 are inserted into the mixing valve chamber 3a. The temperature of the mixed water (hot water) flowing out from the upper discharge port 12 or the lower discharge port 13 can be changed and adjusted as desired by changing the ratio of the mixed water to the hot water flowing in from the upper discharge port 12 or the lower discharge port 13.

Next, FIG. 4 shows a second embodiment. This embodiment device includes the structure of the inner cylinder 5, the assembly means of the spring case 62 that supports the spring support 60 that supports the piston 40 of the thermoelement 4, the structure of the slide valve 8, and the structure of the shaft support of the operating handle 9. The basic structure is the same as the first embodiment shown in FIGS. 1 to 3, and the same reference numerals are given to the same components, and detailed explanations are omitted. do.

That is, in this second embodiment, the inner cylinder 5 which accommodates the thermoelement 4 and is provided inside the valve box a is formed into a cylindrical body that can be passed through vertically. Then, a partition plate-shaped partition wall 5b is fitted in a watertight manner, and the upper end side of the guide cylinder portion 4b of the thermoelement 4 housed in the inner cylinder 5 is watertightly fitted into a through hole drilled at the axial center of the partition wall 5b. A female thread 52 is provided on the inner circumferential surface of the upper end of the inner cavity of the inner cylinder 5, and the upper end thereof A spring case 62, which supports a spring support 60 that supports the upper end of the piston 40 outputted by the thermoelement 4, is fitted into the inner cavity of the spring case 62 with a male screw 62a provided on its outer peripheral surface. The lower end side of the rotating shaft part 66 is integrally connected to the upper end part, the upper end side of the rotating shaft part 66 is rotatably supported on the holder 63, and the temperature adjustment handle 7 is connected and fixed thereto. There is.

A fitting shaft portion 5 provided on the upper end side of the inner cylinder 5
3 is provided in the shape of an integral flange on the outer periphery of the inner cylinder 5, and a base end portion 9 formed in an annular shape of the operation handle 9 is attached thereto.
0 are rotatably fitted in a water-tight manner, whereby the operation handle 9 is provided coaxially with the temperature adjustment handle 7.

Further, a communication port 51 provided in the cylinder wall 5a of the inner cylinder 5
Only one is provided at an intermediate portion between the upper and lower sides of the cylindrical wall 5a, and at a position below the aforementioned partition wall 5b.

Further, the slide valve 8, which is formed into a cylindrical shape and is fitted to the outer periphery of the inner cylinder 5 so as to be slidable up and down, is provided with a through hole 88 at an intermediate portion in the vertical direction, and a hole 88 is provided below the through hole 88. These parts are a communication port 22 for the upper discharge port 12 provided in the inner box 2, a communication port 51 provided in the inner cylinder 5, and a communication port 23 for the lower discharge port 13 provided in the inner box 2. are formed in a valve member 89 that is sequentially switched and closed. As a result, the slide valve 8 is at an intermediate position between the upper and lower sides, and the valve member 89 thereof closes the communication port 51 provided in the cylindrical wall 5a of the inner cylinder 5, as shown in FIG. The state is at the water stop position, and the slide valve 8 is moved downward from the position shown in FIG. The closed state becomes the state where the upper discharge port 12 is opened, and the valve member 89 is moved upward as shown in FIG.
However, the communication port 22 for the upper discharge port 12 provided in the inner box 2 is closed, and the communication port 51 of the inner cylinder 5 and the communication port 23 for the lower discharge port 13 provided in the inner box 2 are closed. When opened, the lower discharge port 13 is in the open position.

Therefore, in this embodiment as well, by placing the operation handle 9 coaxially with the temperature adjustment handle 7 in the neutral position, as shown in FIG. The water stop position is reached, which closes the two discharge ports 12 and 13 that discharge mixed water at a temperature of By displacing the slide valve 8 provided on the outer periphery of the cylinder 5 upward or downward, the upper discharge port 12 and the lower discharge port 13 are in a state of discharging water alternately. Operation handle 9
Two discharge ports 1 which discharge mixed water by the operation of
It becomes possible to switch between 2 and 13 and shut off the water.

As explained above, the automatic mixing faucet with a water stop valve according to the present invention has a mixing valve chamber 3a that communicates with the hot water inlet 10 and the water inlet 11 at one end in the axial direction within the cylindrical valve box a. A mixing valve 3 whose operating direction is along the axial direction is stored therein, and inside the body of the valve box a, the axial direction is aligned with the axial direction and the inner cavity communicates with the mixing valve chamber 3a. An inner cylinder 5 is provided, and a thermoelement 4 that is controlled according to the temperature of the mixed water flowing through the mixing valve 3 is housed inside the inner cylinder 5, and a valve box is installed on the cylinder wall 5a of the inner cylinder 5. A communication port that communicates with two mixed water discharge ports 12 and 13 installed with a phase difference in the axial direction is provided in the body of a, and a communication port that communicates with the two mixed water discharge ports 12 and 13 that are installed with a phase difference in the axial direction is provided on the outer periphery of the inner cylinder 5. A cylindrical slide valve 8 is installed to alternately switch communication between the communication port and the two mixed water discharge ports 12 and 13 and to cut off communication therebetween. An operating handle 9 is provided on the outer periphery of the body of the valve box a so as to rotate in the axial direction, and the operating handle 9 is connected to move in the axial direction by rotation of the operating handle 9, A temperature adjustment handle 7 that rotates with the axial direction as a rotation axis is provided on the end side, and the temperature adjustment handle 7 is connected to a temperature adjustment screw 65 that displaces the supporting position of the thermoelement 4. Therefore, a mixing valve 3 connected to a thermoelement 4 has two discharge ports 12 provided to discharge mixed water (hot water) controlled to a desired temperature.
13 and the water stoppage of each of the discharge ports 12 and 13 can be performed by operating the operation handle 9 provided coaxially with the temperature adjustment handle 7 on the valve box a, improving operability. Furthermore, the operation handle 9 and the valve mechanism for switching and water shutoff can be easily assembled.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a device according to a first embodiment of the present invention, FIGS. 2 and 3 are explanatory diagrams of the operation of the same device, and FIG. 5 and 6 are explanatory diagrams of the operation of the same device. Explanation of drawing symbols: a... Valve box, 1... Outer box, 10...
Hot water inlet, 11... Water inlet, 12, 13... Discharge port, 2
...Inner box, 20, 21, 22, 23...Communication port, 3...
Mixing valve, 3a...Mixing valve chamber, 30...Spring, 4...Thermo element, 40...Piston, 5...Inner cylinder, 5a
...Cylinder wall, 5b...Partition wall, 50...Lid, 51, 51'...
Communication port, 52... female thread, 53... fitting shaft portion, 60...
Spring supporter, 61... Spring, 62... Spring case, 6
2a...male thread, 63...holder, 63a...base end, 64...female thread, 65...temperature adjustment screw, 66...
Rotating shaft portion, 7... Temperature adjustment handle, 70... Fixing screw, 8... Slide valve, 80... Slide valve body, 8
1, 82...Annular valve member, 81a, 82a...Protruding edge, 83, 84...Spring, 85, 86...Valve seat, 8
7...Threaded part, 88...Through hole, 89...Valve member, 9...Operation handle, 90... Base end part, 91... Cylindrical body, 92
...Screw part, W...vacant room.

Claims (1)

[Claims] 1. A mixing valve chamber 3a communicating with the hot water inlet 10 and the water inlet 11 is provided at one end in the axial direction within the cylindrical valve box a, and a mixing valve 3 whose operating direction is along the axial direction is provided inside the mixing valve chamber 3a that communicates with the hot water inlet 10 and the water inlet 11. In the body of the valve box a, there is provided an inner cylinder 5 whose axial direction is aligned with the axial direction and whose inner cavity communicates with the mixing valve chamber 3a. A thermoelement 4 is installed in the cylinder wall 5a of the inner cylinder 5 to provide a phase difference in the axial direction in the body of the valve box a. A communication port communicating with the water discharge ports 12 and 13 is provided,
A cylindrical slide is provided on the outer periphery of the inner cylinder 5 to alternately switch communication between the communication port and the two mixed water discharge ports 12 and 13 and to cut off communication therebetween by sliding in the axial direction. Equipped with valve 8,
The slide valve 8 is connected to an operation handle 9 provided on the outer periphery of the body of the valve box a so as to rotate in the axial direction with the rotation axis as the operating handle 9, so as to move in the axial direction when the slide valve 8 is rotated. A temperature adjustment handle 7 that rotates with the axial direction as a rotation axis is provided on the other end side in the axial direction of a, and the temperature adjustment handle 7 is linked to a temperature adjustment screw 65 that displaces the supporting position of the thermoelement 4. An automatic mixing faucet with a water stop valve.