JPS6220425B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides, for example, at the end of a hot water supply system, hot water sent from a water heater and water sent from a tap system are mixed at a desired mixing ratio using a regulating valve, and this mixed hot water The present invention relates to a hot water mixing faucet that is used to selectively discharge water from either of two outlets, such as a faucet or a shower.

Conventionally, this type of hot water mixer faucet has a structure in which the mixing ratio (temperature) of hot water and water, opening and closing of the hot water flow path, and adjustment of the discharge amount are performed using an adjustment valve, and switching between the faucet and the shower is performed using a dedicated switching valve. It was hot. For example, as seen in Japanese Utility Model Publication No. 51-30010, the temperature is adjusted by rotating the lever of the regulating valve, and the pushing and pulling of the lever opens and closes the hot water flow path and adjusts the discharge amount. The outlet (faucet and shower) is opened by rotating the selector valve lever.
As mentioned above, switching between the two requires rotation and pushing and pulling.

For this reason, it is necessary for the regulating valve to have a valve body that can rotate and slide freely in the axial direction, which has the disadvantage of complicating the structure, and furthermore, the operation requires rotation and push/pull. Because it requires different operations in different directions, it can be confusing to operate, and when pushing or pulling the lever, the lever may rotate unexpectedly and the mixing ratio (temperature) of hot water and water may change unexpectedly. It was hot.

The present invention is a novel method that can eliminate such inconveniences.
The purpose is to provide a useful hot and cold water mixing faucet.

An embodiment of the present invention will be described below based on the drawings. Figure 1 shows a cross-sectional view of a hot water mixer faucet.
, a water inlet 2 connected to the water supply, a hot water inlet 3 connected to the water heater, a discharge port 4 for supplying hot water mixed in a desired ratio to the faucet, and a discharge port 5 for supplying the water to the shower. The main body has a first valve chamber A in which a regulating valve 6 is rotatably inserted, and a second valve chamber A located between the valve chamber A and the two discharge ports 4 and 5 in the hot water flow direction. A valve chamber B is formed. The first valve chamber A communicates with the water inlet 2 and the hot water inlet 3 through a first chamber 7 and a second chamber 8 formed at both ends, and are formed in parallel at appropriate intervals. It communicates with the second valve chamber B via a water outflow port 9 and a hot water outflow port 10. As shown in the figure, the water outflow port 9 and the hot water outflow port 10 are hole walls extending in the axial direction of the valve chamber B, and open at positions on the same straight line with each other. The second valve chamber B and the two discharge ports 4, 5 are connected to each other via outlet ports 11a, 12a formed at both ends of the valve chamber B in the axial direction and separate passages 11, 12 passing through the back side of the paper. It is connected.

As shown in FIG. 2, the regulating valve 6 is made of metal, for example, and is formed into a cylindrical shape with a partition 13 in the center thereof, and a first opening 14 on the circumferential side on the opposite side in the diametrical direction. It has a structure in which a second opening 15 is provided, and a sealing material 16 such as sealing rubber is applied to the entire circumferential side except for the openings 14 and 15, and an operating part 17 is connected to one end and can be rotated from the outside. It is configured to allow for dynamic operation. The sealing material 16 is attached to the openings 14, as shown by 16a, b... in the figure.
A portion located around the periphery of the valve chamber 15 is protruded to maintain a high watertight effect with the inner wall of the valve chamber A.
17a in the figure is a notch formed in the cylindrical portion of the operating portion 17, and water flows into one end of the regulating valve 6 through the notch 17a.

When this adjustment valve 6 is rotated, the first opening 1
4 and the second opening 15 alternately communicate with the water outflow port 9 and the hot water outflow port 10, and the communicating areas are also inversely proportional to each other. Therefore, as shown by the arrow P, water is introduced from the water inlet 2 through the first chamber 7 into the right-hand space 6a, and as shown by the arrow Q, water is introduced into the left-hand space 6b from the hot water inlet 3 through the second chamber 8. The hot water is adjusted to a desired mixing ratio by rotating the regulating valve 6, and then flows through each outflow port 9, 10 to the second
(See Figures 4A and D).

In the above configuration, the present invention provides the adjustment valve 6
The second valve chamber B located between the two discharge ports 4 and 5 has the following configuration having three functions: switching the discharge ports 4 and 5, adjusting the discharge amount, and opening and closing the flow path. A valve body 18 made of the following is provided. That is, as shown in FIG. 3, this valve body 18 has a solid portion 18a in one third of the circumferential direction of the virtual cylindrical body, and a solid portion 18a in the remaining two thirds in the circumferential direction via a partition wall 18b. 1st and 2nd
The first space portions 18c and 18d are formed.
It has a structure in which a fan-shaped wall 18e at one end of the space 18c and a fan-shaped wall 18f at the other end of the second space 18d are continuous with the partition wall 18b, and an operating tool 19 is connected to one end. . Furthermore, a sealing material 20 similar to that applied to the regulating valve 6 is applied to the surface of the valve body 18, and the walls 18b, 18
Seal material protruding portions 20a, b, . . . are formed at required locations such as the upper surfaces e and 18f and the peripheral portion of the surface of the solid portion 18a.

FIGS. 4A to 4C are diagrams explaining the three functions of the valve body 18, and FIG. 4A shows the first space 18.
Figure B shows the second space 18d, and Figure C shows the central part 18a facing the hot and cold water outlet ports 9 and 10, respectively. . According to the state shown in Figure A, hot water flowing out from each outflow port 9, 10 is guided in the direction of the discharge port 5 by the first space 18c,
Moreover, according to the state shown in FIG. B, the second space 18b guides the discharge port 4 toward the discharge port 4. Therefore, the discharge port can be switched by rotating the valve body 18 to switch to each of the above states. Next, according to the state shown in FIG. C, since each outflow port 9, 10 is closed by the solid portion 18a, no hot water is discharged from any of the discharge ports 4, 5. Furthermore, in this water-stop state, both outflow ports 9 and 10 are closed separately, so water never flows back toward the water heater. Therefore, the flow path can be opened and closed by rotating the valve body 18 and switching from the state shown in FIG. A or B to the state shown in FIG. C, or vice versa. Further, if the valve body 18 is rotated from the state shown in FIG.
c and 18d (depending on the direction of rotation), the amount of outflow to the discharge port 4 or 5 gradually increases. Conversely, if the valve body 18 is rotated from the state shown in Figure A or B to the state shown in Figure C, the discharge amount will gradually decrease. That is, the discharge amount can be adjusted by this operation.

Since the hot water mixing faucet according to the present invention is configured as described above, the valve body has three functions of opening and closing the hot water flow path, adjusting the discharge amount, and switching the discharge port. Thus, a simple rotatable structure is sufficient, and the above three functions can be obtained simply by rotating the valve body, which simplifies the structure and reduces costs. In addition, it eliminates the need for different operations such as rotation and push/pull in different directions, eliminating the need for confusing operations, and when adjusting the discharge amount, etc., the mixing ratio of hot water ( This has the advantage that there is no risk of the temperature changing.

Furthermore, when the water is stopped, both outflow ports 9 and 10 are closed separately, as shown in FIG. There is no risk that the water will flow back and cause the water heater to malfunction, and it is safe to use.

It should be noted that the water mixing faucet according to the present invention is not limited to the specific structure of the above-described embodiment, but includes design changes made within the scope of the technical idea of the present invention. For example, the regulating valve for mixing hot water and water at a desired ratio uses a cylindrical body in the above embodiment, but as shown in Fig. 5, it has a shape in which the central cylindrical part is left and both ends are semi-cylindrical shapes 6c and 6d. You may use the one from

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, with FIG. 1 being an overall vertical sectional view, and FIG. 2 being a perspective view showing the structure of a regulating valve.
FIG. 3 is a perspective view showing the structure of the main part, FIGS. 4A to 4D are views explaining the operation of the regulating valve, and FIG. 5 is an overall vertical sectional view showing another embodiment of the present invention. B... Valve chamber, 4, 5... Discharge port, 6... Adjustment valve, 9... Water outflow port, 10... Hot water outflow port, 11a, 12a... Outlet, 18... Valve body,
18a...solid part, 18b...partition wall, 18c...
...First space part, 18d... Second space part, 18
e, 18f...Fan-shaped wall, 19...Operation tool, 20
...Sealing material.

Claims (1)

[Claims] 1. In a hot water mixing faucet capable of mixing hot water and water at a desired mixing ratio with a regulating valve and discharging the mixed hot water from either of the two discharge ports, there is a gap between the regulating valve and the two discharge ports. The hole wall along the axial direction has a water outflow port and a hot water outflow port from the regulating valve at positions colinear with each other, and at both ends in the axial direction there are two ports communicating with the two discharge ports, respectively. A valve chamber having two outlet ports is formed, and a solid portion is formed in the valve chamber in one-third of the circumferential direction of the virtual cylindrical body, and the remaining portion is
A first space and a second space are formed which are divided into two in the circumferential direction by a partition wall, and one end of the first space in the axial direction and one end of the second space in the axial direction a fan-shaped wall is formed at the other end, and the solid part, the partition wall,
A valve body is rotatably inserted in which a sealing material is applied to the surface of the fan-shaped wall and an operating tool is connected to one end in the axial direction. A hot water mixing faucet characterized by being configured to open/close, adjust the discharge amount, and switch the discharge port.