JPS6158710B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention mixes hot water and water by simultaneously supplying water supplied to a water heater as hot water to a mixing chamber and simultaneously supplying water directly to the mixing chamber. This invention relates to a mixing faucet that discharges hot water.

[Conventional technology]

Conventionally, a hot water mixing faucet that supplies hot water using an electric water heater built into a washbasin device or the like as a heating source was described in Japanese Utility Model Publication No. 49-4187.

As shown in FIG.
01 into the water heater 103 via the water pipe 102, and the water flowing into the water heater 103 before the water discharging device 104.
There are two types: one that becomes hot water in the chamber 3, and the other that flows directly into the mixing chamber 105 where it is mixed. A flow valve 10 is installed in these flow path systems to adjust the flow rate of water discharged.
6, and a temperature adjustment valve 107 located downstream thereof that simultaneously changes the valve opening degree of the flow path to the water heater 103 side and the mixing chamber 105 side. This temperature control valve 1
07 is for adjusting the flow rate so that the flow rate toward the water heater 103 and the mixing chamber 105 is increased or decreased mutually, and when the flow path toward the water heater 103 is closed, only water is discharged from the water discharging device 104. handle 108
When the valve body 109 is moved to the left in the figure by the operation, the high-temperature water that has passed through the water heater 103 will be discharged.

[Problem that the invention seeks to solve]

By the way, the temperature adjustment valve 107 controls the water into the mixing chamber 10.
It also requires a function to separate the flow into two directions: the 5 side and the water pipe 102. Furthermore, the mixing chamber 105 must be located at a certain distance from the temperature control valve 107 so that the hot water supplied from the water heater 103 into the mixing chamber 105 does not flow back to the water chamber 101 side. .

Therefore, so that the temperature adjustment valve 107 can perform its sufficient function without disturbing the flow system of hot water and water,
A dedicated regulating valve chamber is required, and as a result, the main body 10
0 capacity increases. In this way, the main body 100
Because of the large size, there was a problem that the degree of freedom in design was reduced and the installation position was also limited, resulting in poor versatility.

In place of a hot water mixer faucet with separate valves for flow rate adjustment and temperature adjustment, a device was developed in Japanese Patent Application Laid-Open No. 1983-1999 that made it possible to adjust flow rate and temperature with a single valve body.
It is described in Publication No. 44524. The water inlet to the main body, the inlet to the water heater, and the water outlet connecting the water supply chamber to the water dispensing device are arranged on the same axis, and the stroke of the valve body allows only water, a mixture of water and hot water, and It is designed so that hot water can be supplied separately.

However, since this valve body is operated by operating a single-axis handle, water is supplied immediately after the valve is opened, mixed water can be discharged by moving the valve body, and when the valve body is moved further, high-temperature hot water is supplied. This provides ease of use. Therefore, even if it is desired to discharge warm water immediately after opening the valve, the water supplied to the water supply chamber side will be discharged at the same time, so you will have to wait for a while to obtain hot water at the required temperature.

As described above, although there is no problem in discharging low-temperature water, there is a problem in that it is inconvenient in terms of operability to obtain mixed water at the required temperature, and water is wasted.

The present invention was created in view of the above-mentioned problems, and includes a hot water mixer faucet that recirculates water supplied to a water heater as hot water, including a regulating valve chamber in the mixing chamber for adjusting the temperature of mixed water. The purpose is to reduce the capacity and easily obtain mixed water at the required temperature without wasting water.

[Means for solving problems]

In order to achieve the above object, the present invention includes a water chamber in a main body that communicates with a water supply source via a supply valve;
A mixing chamber is provided which is separated from the water chamber by a first partition having a water inlet and communicates with the hot water outlet side of the water heater disposed outside the main body, and has a through hole coaxially with the water inlet. A water valve chamber divided by a second partition is provided in the mixing chamber, and a water valve is provided around the water inlet, which is inserted through the through hole in a watertight manner and moved back and forth in the axial direction by operating a handle on the outside of the main body. A valve body part that comes into contact with and separates from a hot water valve seat provided in the hot water valve seat and the hot water valve chamber is arranged, a communication hole is provided in the valve body part to communicate the water chamber and the hot water valve chamber, and the hot water valve chamber is connected to the hot water valve chamber. It is characterized by being connected to the water inlet of a water heater.

With the above configuration, the present invention enables single operation of the water valve that adjusts the flow rate of water flowing into the mixing chamber and the hot water valve that adjusts the flow rate of water to the water heater. There is no need to set up a dedicated room for

〔Example〕

Hereinafter, the present invention will be specifically described based on embodiments shown in the drawings.

Fig. 2 is a front cross-sectional view of the hot water mixer faucet 1 according to the present invention installed in a washbasin device, Fig. 3 is a cross-sectional view of the main body 2 taken along the - line arrow in Fig. 2, and Fig. 4 is a - FIG. 2 is a sectional view of only the main body 2 taken along the line.

In the figure, 3 is a washbasin, which has two openings 4 through it at a required interval, and a gasket 5 on the top surface of the washbasin 3.
is interposed to fix the main body 2 of the hot water mixing faucet 1.

At the bottom of the main body 2, a water supply pipe 6 communicating with a water supply source, a water supply connection pipe 7 communicating with the inside of the main body 2, a water heater 8 such as an electric heater stored and incorporated in the lower side of the washbasin 3, and a water heater 8, such as an electric heater, and the main body 2 are installed. A hot water supply connection pipe 9 that communicates with the water supply is screwed on. Both connecting pipes 7 and 9 have screws formed on their outer peripheries, and the main body 2 is fixed to the upper surface of the washbasin 3 by a nut 10 and a spring washer 11.

A water valve seat 12 is formed at the upper end of the water supply connection pipe 7, and a valve shaft 14 equipped with a gasket 13 that approaches and separates from the water valve seat 12 is rotatably attached to the main body 2 by a handle 15. 12 and the packing 13 constitute a supply valve A.

Inside the main body 2, there are three chambers, a water chamber 16 equipped with a supply valve A, a mixing chamber 17, and a hot water valve chamber 18 that communicates the water chamber 16 and the water heater 8, by a first partition wall 19 and a second partition wall 20. The mixing chamber 17 is divided into two parts, and the mixing chamber 17 communicates with a water spout 22 of a water spouting device 21, as shown in FIG.

A through hole 24 having a water inlet 23 and a gasket 24a coaxially extends through the first and second partition walls 19 and 20, respectively. Further, a screw hole 25 that communicates between the hot water valve chamber 18 and the outside of the main body 2 is provided in the side of the main body 2, and a valve shaft mounting bush 27 having a thread 26 formed inside is screwed into the screw hole 25. ing. 28
is screwed onto the screw 26 of the valve stem mounting bush 27,
The valve shaft is a valve shaft that can move forward and backward in the axial direction by operating a handle 29, and is slidably guided in a watertight state through the through hole 24, and is attached to the water valve seat 30 formed at the water inlet 23 of the first partition wall 19. A valve body portion 32 is provided on one side to come into contact with and separate from an annular hot water valve seat 31 formed protrudingly from the end face of the bushing 27.

A communication hole 33 having an open end on the water chamber 16 side is formed in the valve body portion 32 in the axial direction up to the inside of the communication chamber 18 , and a water supply port 3 communicating with the inside of the communication chamber 18 .
4 have been established. Both end surfaces of the valve body portion 32 are filled with water,
A water valve V-1 that can be brought into and out of contact with the hot water valve seats 30 and 31 and that adjusts the amount of water directed toward the water outlet 22 and a hot water valve V-2 that adjusts the amount of water directed toward the water heater 8 are coaxially formed. , these water valve V-1 and hot water valve V-2 constitute a temperature regulating valve V.

Further, a reduced diameter portion 32a is formed at the tip of the valve body portion 32, and the reduced diameter portion 32a is located within the water inlet 23, and the stepped portion 32b is arranged to face the water valve seat 30. Further, an annular stopper part 32c located in the communication chamber 18 is provided on the base end side, and one surface of the stopper part 32c approaches and separates from the hot water valve seat 31.
The other surface side contacts the partition wall 20 to restrict the stroke of the valve shaft 28.

On the other hand, a communication pipe 35 communicating with the hot water valve chamber 18 is fixed to the second partition wall 20, and this communication pipe 35 is inserted into the hot water supply connection pipe 9 in a double pipe state. A water supply pipe 36 that communicates with the water heater 8 is connected to the communication pipe 35 on the lower side of the hot water connection pipe 9, and a hot water supply pipe 37 from the hot water outlet of the water heater 8 has an L-shape with a hot water inlet 39. It communicates with the hot water supply connection pipe 9 through a joint pipe 38 .

Next, the water and hot water supply system will be explained with reference to FIG.

In the state shown in FIG. 2, the water valve V-1 is closed and only the hot water valve V-2 is open. Therefore, the water chamber 16 communicates with the water heater 8 through the communication hole 33 of the valve shaft 28, the water supply port 34, the communication pipe 35, and the water supply pipe 36, and when the supply valve A is opened, water flows through the flow path. is supplied into the water heater 8. Next, the hot water heated by the water heater 8 passes through the hot water supply pipe 37 and the joint pipe 38,
The hot water reaches the annular cross-sectional flow path in the hot water supply connection pipe 9, passes through the mixing chamber 17, and is discharged from the water outlet 22.

Adjustment to lower the discharge temperature from the state where the hot water valve V-2 is fully open as described above is performed in the following manner. First, by moving the valve shaft 28 to the left side in FIG.
The valve opening degree of hot water valve V-2 is decreased at the same time as the valve opening degree of valve V-1 is increased. In this state, when the supply valve A is opened, the water in the water chamber 16 is supplied as two separate streams: one is directly supplied to the mixing chamber 17, and the other is supplied to the water heater 8 side. be done. Therefore, hot water from the water heater 8 can be mixed with water from the water chamber 16, and this mixed water can be discharged from the water spout 22.

In the above configuration, since the water valve V-1 has the water valve seat 30 on the mixing chamber 17 side of the first partition wall 19 between the water chamber 16 and the mixing chamber 17, the water valve V-1 is substantially It will be formed in the mixing chamber 17,
The mixing chamber 17 has a structure that also serves as the valve chamber of the water valve V-1. Therefore, the functional parts of the water valve V-1 and the hot water valve V-2 are located and integrated within the mixing chamber 17, and there is no need to form an adjustment valve chamber for adjusting the temperature of the mixed water. , the capacity of the main body 2 can be reduced.

Furthermore, by setting the valve opening degrees of the water valve V-1 and the hot water valve V-2 using the handle 29, it is possible to obtain mixed water at the required temperature at the same time as opening and closing the supply valve A. Therefore, even if the device is used again after the discharge has been stopped, mixed water at the set temperature can be obtained immediately, and water is not wasted.

Furthermore, the hot water valve V-2 and the inside of the water chamber 16 are connected to the valve body portion 32.
The communication hole 33 communicates with a constant flow area, and the water supply pressure on the water chamber 16 side is propagated to the hot water valve chamber 18 regardless of whether the water valve V-1 is opened or closed, so that, for example, When the opening degree of the water valve V-1 is large, the flow rate to the hot water valve V-2 side does not decrease. Therefore, even if the opening degree of the water valve V-1 changes, there is no need for a flow path resistance in the direction of the hot water valve V-2, so the operation of the water valve V-1 will not be affected in any way. It is possible to mix hot water and water well without any problems.

〔Effect of the invention〕

As explained above, in the hot water mixing faucet of the present invention, a hot water valve chamber is further formed in the mixing chamber divided from the water chamber by the first partition, and the second
The valve body part is provided with a valve body part that penetrates the partition wall and opens and closes the water inlet of the first partition wall and at the same time opens and closes the flow path leading to the water heater in the hot water valve chamber, and the valve body part has a valve body part that opens and closes the water inlet of the first partition wall and at the same time opens and closes the flow path leading to the water heater in the hot water valve chamber. A communication hole is provided to supply the room. Therefore, both the water for discharge and the water supplied to the water heater can be operated by the functional parts integrated in the mixing chamber, and the capacity of the main body can be reduced in size. In addition, the water chamber is equipped with a supply valve that communicates with the water supply source, so if you set the valve opening on the water and hot water sides using the valve body, the required temperature will be determined by the opening of the supply valve. Mixed water can be supplied instantly and can be used without wasting water.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a conventional hot water mixing faucet, FIG. 2 is a front sectional view of the hot water mixing faucet according to the present invention, and FIG. FIG. 4 is a sectional view of only the main body taken along the same line. 1...Hot water mixing faucet, 2...Main body, 8...Water heater, 9...Hot water supply connection pipe, 16...Water chamber, 17...
Mixing chamber, 18... Hot water valve chamber, 19... First partition, 2
0...Second partition wall, 23...Water inlet, 24...Through hole, 31...Hot water valve seat, 32...Valve body portion, 33...
Communication hole, V-1...water valve, V-2...hot water valve.

Claims (1)

[Claims] 1 A water chamber in the main body that communicates with a water supply source via a supply valve, and a water chamber that is separated from the water chamber by a first partition having a water inlet and that communicates with the hot water outlet side of the water heater located outside the main body. A hot water valve chamber is provided in the mixing chamber divided by a second partition having a through hole coaxially with the water inlet, and a handle on the outside of the main body is inserted through the through hole in a watertight manner. A valve body portion is arranged which moves back and forth in the axial direction by the operation of the water inlet and comes into contact with and separates from a water valve seat provided around the water inlet and a hot water valve seat provided in the hot water valve chamber, and the valve body portion is placed in the water valve chamber. A hot water mixer faucet, characterized in that a communication hole is provided to communicate the hot water valve chamber with the hot water valve chamber, and the hot water valve chamber is further connected to a water inflow portion of the water heater.