JPH0573061U - Hot and cold water mixing tap - Google Patents

Abstract

(57) [Abstract] [Purpose] A movable disk is slid with respect to a fixed disk by operating one lever so that a required amount of hot water having a desired temperature can be obtained, and In a hot and cold water mixing tap with a relief groove for preventing internal pressure rise that prevents problems such as valve damage due to water in the inflow hole being heated and expanding, the edge of the escape groove for internal pressure rise prevention is less likely to chip Therefore, the hot and cold water mixing stopper is provided, which is easy to handle during transportation and storage of the disc. [Structure] A relief groove 20 for preventing internal pressure rise is provided so as to communicate with the mixing recess 5 of the movable disk 6 when only hot water is supplied, and is communicated with the water inflow hole 2 of the fixed disk 4. ..

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a hot and cold water mixing tap configured to obtain a required amount of hot water having a desired temperature by mixing hot water and cold water at an appropriate ratio by operating a single lever. Is.

[0002]

[Prior Art]

 Conventionally, as this kind of hot and cold water mixing plug, a movable disk having a mixing recess on the lower surface is slidably arranged on a fixed disk having a hot water inflow hole, a water inflow hole, and a mixed solution outflow hole. On the other hand, the movable disk is slid by the operation of one lever, so that the hot water / water inflow hole and the mixed solution outflow hole are connected or blocked while changing the water flow area through the mixing recess. A relief groove for preventing internal pressure rise, which is designed to communicate with the water inflow hole when only hot water is supplied, is provided so as to communicate with the mixing recess of the movable disk. When hot water is supplied, the water in the water inflow hole is discharged to the mixing recess through the relief groove for preventing the rise in internal pressure, and the water in the water inflow hole is heated and expands, causing valve damage. The malfunction of Sealed by what is is known (Japanese see Patent Kokoku 3-9347).

[0003]

[Problems to be solved by the device]

 By the way, it is preferable that the fixed disk and the movable disk used for the hot and cold water mixing stopper are made of ceramic from the viewpoint of heat resistance and wear resistance. As a result, the mixed recess of the escape groove hits the edge of the disc with the disc, which causes a problem that the edge of the escape groove for preventing internal pressure rise is easily chipped.

An object of the present invention is to provide a hot and cold water mixing stopper in which the edge of the escape groove for preventing an increase in internal pressure is unlikely to be chipped, and therefore the fixed disk and the movable disk can be easily handled during transportation and storage.

[0005]

[Means for Solving the Problems]

 The hot and cold water mixing valve according to the present invention has a mixing recess (5) on the lower surface of a fixed disk (4) having a hot water inflow hole (1), a water inflow hole (2) and a mixed solution outflow hole (3). The movable disk (6) that it has is slidably arranged, and the movable disk (6) is slid with respect to the fixed disk (4) by the operation of one lever (7). 1) (2) and the mixed liquid outflow hole (3) are connected via the mixing recess (5) while changing the water flow area, and they are connected or blocked, and when only hot water is supplied. A relief groove (20) for preventing an increase in internal pressure, which is adapted to communicate with the mixing recess (5), is provided in communication with the water inflow hole (2) of the fixed disk (4). Is.

[0006]

[Action]

 In the hot and cold water mixing valve according to the present invention, the opening of the water inflow hole provided with the relief groove for preventing an increase in the internal pressure is smaller than the opening of the mixing recess, so that the water inflow hole of the relief groove is formed. It is difficult for the movable disc etc. to hit the edge of the.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In the following description, front means left in FIG. 1, rear means right in FIG. 1, left and right mean rearward, that is, left and right in FIG.

In FIG. 1, a fixed disk (4) made of ceramics is fixed near the lower end of the casing (8), and a movable disk (6) made of ceramics having a smaller diameter than the fixed disk (4) is fixed on the fixed disk (4). ) Are arranged in a stack so that they can slide in any direction.

A disc holder (9) is arranged on the movable disc (6), and a plurality of legs (10) of the disc holder (9) are fitted to the removal portion (11) on the upper peripheral portion of the movable disc (6). Holds the movable disc (6) in the disc holder (9). An engaging recess (12) is provided at the center of the upper surface of the disc holder (9).

A disc retainer (13) is arranged on the disc holder (9). The disc retainer (13) has a cylindrical shape with a top wall (14), and a shaft insertion slot (15) is formed in the center of the top wall (14). The actuating shaft (16) is passed through the shaft insertion slot (15), and the engaging portion (16a) at the lower end of the shaft (16) is inserted into the engaging recess (12) of the disc holder (9). It is arranged. The actuating shaft (16) is rotatable about the shaft (17) within the range of the shaft insertion elongated hole (15).

A cover (18) is arranged above the disc retainer (13), and the actuating shaft (16) protrudes upward through an insertion hole formed in the central portion of the cover (18) and has a lever (7 ) Is installed. The lever (7) is composed of a mounting portion (7a) fitted to the upper end of the shaft, a cap portion (7b) covering the cover (18), and an operating portion (7c) extending to one side.

When the operating portion (7c) of the lever (7) is moved up and down, the movable disk (6) is slid back and forth with respect to the fixed disk (4) via the operating shaft (16). Further, when the operating portion (7c) of the lever (7) is rotated in the left-right direction, the movable disc (6) is rotated via the operating shaft (16). Thus, by operating the lever (7), the movable disc (6) can be slid in any direction.

As shown in FIG. 2, the fixed disk (4) is provided with a hot water inflow hole (1), a water inflow hole (2) and a mixed liquid outflow hole (3), and further, only hot water is supplied. A relief groove (20) for preventing internal pressure rise, which is designed to communicate with the mixing recess (5), is provided so as to communicate with the water inlet hole (2) and reach near the hot water inlet hole (1). ing. An eyebrow-shaped mixing recess (5) is provided in the center of the lower surface of the movable disk (6). Then, the hot water supplied from the hot water inflow hole (1) and the water supplied from the water inflow hole (2) are mixed in the mixing recess (5), and the mixed liquid passes through the mixed liquid outflow hole (3). Supplied to the faucet pipe (19).

In the hot and cold water mixing valve having the above configuration, when the operating portion (7c) of the lever (7) is lowered to the lowest point, both the hot water inflow hole (1) and the water inflow hole (2) are closed. The liquid flow is blocked (see Fig. 3). When the lever (7) is lifted from this state, the movable disc (6) slides forward with respect to the fixed disc (4), and the fixed disc (4) has hot water inlet holes (1) and water inlet holes (2). ) And the mixing recess (5) of the movable disk (6) are communicated with each other, and the hot water and water are mixed and discharged into the mixed liquid outflow hole (3) (see FIG. 4).

When the operating portion (7c) of the lever (7) is rotated left or right, the hot water inflow hole (1) and water inflow hole (2) of the fixed disk (4) and the movable disk (6 The ratio of the water flow area to the mixed recess (5) of () is changed. As a result, the ratio of hot water and water is changed, and a mixed liquid having a desired temperature is obtained. Also, by rotating the operating part (7c) to the left, only water is supplied (see FIG. 5), and by rotating the operating part (7c) to the left, only hot water is supplied. (See FIG. 6).

As shown in FIG. 6, when only hot water is continuously supplied, the internal pressure rise prevention relief groove (20) communicates with the hot water inflow hole (1) and the internal pressure rise prevention relief groove (20) is passed. The water in the water inflow hole (2) is discharged to the mixing recess (5) through the hot water inflow hole (1), so that the water in the water inflow hole (2) is heated and expands, and Problems such as damage are prevented. Even when only hot water is continuously supplied, the amount of hot water supplied can be changed by sliding the movable disk (6) with respect to the fixed disk (4). The escape groove (20) communicates with the hot water inflow hole (1).

[0017]

[Effect of the device]

 According to the hot and cold water mixing valve of the present invention, the water inflow hole of the escape groove does not easily come into contact with the movable disk or the like at the edge of the ring, so that the problem of lack of the escape groove does not occur easily. Is easy to handle.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an essential part showing a hot and cold water mixing valve according to an embodiment of the present invention.

FIG. 2 is a perspective view of a fixed disk and a movable disk as seen from the front side.

FIG. 3 is a plan view showing a corresponding positional relationship between a fixed disk and a movable disk, showing a case of simultaneous hot and cold water flow.

[Fig. 4] Similarly, it shows the case of blocking the passage of liquid.

[Fig. 5] Similarly, it shows a case of supplying water only.

[Fig. 6] Similarly, it shows a case of supplying hot water only.

[Explanation of symbols]

 (1) Hot water inflow hole (2) Water inflow hole (3) Mixed liquid outflow hole (4) Fixed disk (5) Mixing recess (6) Movable disk (7) Lever (20) Relief groove for preventing internal pressure rise

Claims (1)

[Scope of utility model registration request] 1. A movable disk having a mixing recess (5) on its lower surface on a fixed disk (4) having a hot water inflow hole (1), a water inflow hole (2) and a mixed solution outflow hole (3). (6) is slidable and is movable with respect to the fixed disk (4).
By sliding (6) by operating one lever (7), hot water and water inlets (1) (2) and mixed liquid outlet (3)
In the hot and cold water mixing tap that can be connected or blocked through the mixing recess (5) while changing the water flow area, it is designed to communicate with the mixing recess (5) when only hot water is supplied. Relief groove (20) for preventing internal pressure rise is fixed disk
A hot and cold water mixing tap, which is provided so as to communicate with the water inflow hole (2) of (4).