JPH0476696B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a shower initial cold water draining device for preventing cold water from being suddenly discharged from the shower head at the initial stage of use of the shower.

[Conventional technology]

Conventionally, at the beginning of shower use, cold water remaining in the hot water piping, hot water mixing faucet, and shower hose is discharged from the shower head. Therefore, the user needs to avoid bathing in initial cold water. Therefore, in the case of a hand shower, the user should hold the shower head so that the water spout does not face the body, and in the case of a stationary shower, the user should be careful to hold the shower head so that the water spout does not face the body, and in the case of a stationary shower, make sure that the user's body extends beyond the discharge area. Ta.

[Problem to be solved by the invention]

However, paying such attention as described above is extremely troublesome for the user. Furthermore, in the case of elderly people or young children who cannot take the above precautions, they may be exposed to cold water initially, which in extreme cases may lead to death by shock. In order to solve the above-mentioned problems, the present invention aims to provide an initial cold water draining device for a shower that can automatically drain the initial cold water.

[Means to solve the problem]

The means adopted by the shower initial cold water draining tool according to the present invention (hereinafter referred to as "the present invention tool") is that the main body includes a shower outflow path and a shower side valve seat facing the shower outflow path, and a cold water outflow path and the shower side valve seat facing the shower outflow path. A cold water side valve seat facing the cold water outflow passage, a branch chamber formed between the shower side valve seat and the cold water side valve seat, an inflow passage communicating with the branch chamber, and a shower side valve body seated on the shower side valve seat. A dual valve body having a cold water side valve body seated on a cold water side valve seat and a cold water side valve seat on both end sides and having a length that selectively seats on one valve seat, and a double valve body disposed in a cold water outflow passage and a cold water side valve body sitting on a cold water side valve seat. A heat-sensitive operating tool that presses a multiple valve body with an output end that automatically protrudes by receiving heat from the cold water side valve body to seat the cold water side valve body on the cold water side valve seat, and a multiple valve body that seats the shower side valve body on the shower side valve seat. The valve body is provided with a spring body which biases the valve body and whose spring pressure is weaker than the flowing water pressure in the shower water outflow direction which the multiple valve body receives from the shower water flowing out into the shower outflow path. In the device of the present invention, a suction area may be formed in the inflow path, and the suction area may be communicated with the shower outflow path to drain cold water from the shower outflow path. Furthermore, in the device of the present invention, the heat-sensitive operating tool is movably arranged in the cold water outflow path, so that the non-projecting output end of the heat-sensitive operating tool presses the double valve body.
It may also allow you to take a cold water shower.

[Effect]

In the initial state, the thermal operating tool does not receive heat from the cold water outflow path, so the double valve body is biased by the spring body, the shower side valve body is seated on the shower side valve seat, and the cold water side valve body is seated on the shower side valve seat. It is separated from the cold water side valve seat. The cold shower water led to the inflow channel is
It passes through the branch chamber and the open cold water side valve seat, reaches the cold water outflow path, and is discharged to the outside. During this time, the heat-sensitive operating tool does not receive heat from the cold shower water, so it does not operate the multiple valve body. When warm shower water is introduced into the inflow channel,
The output end of the thermal operating tool automatically protrudes by receiving heat from the shower water flowing through the cold water outflow path, presses the multiple valve body, seats the cold water side valve body on the cold water side valve seat, and opens the shower side valve seat. do. Then, the shower water passes through the branch chamber and the open shower side valve seat, reaches the shower outflow path, and is guided to the shower head. The seating state of the multiple valve element on the cold water side valve seat and the open state of the valve on the shower side valve seat are maintained by the water flow pressure in the water flow direction that the multiple valve element receives from the shower water flowing into the shower outflow path. When a suction area is formed in the inflow passage and the suction area is communicated with the shower outflow passage, cold shower water remains in the shower outflow passage while being discharged to the outside via the cold water outflow passage. The cold water is led to the suction path and discharged to the outside together with the shower water. Furthermore, if the heat-sensitive operating tool is movably arranged in the cold water outflow path and the non-projecting output end of the heat-sensitive operating tool can press the double valve body, the cold water side valve body part can be forcibly moved to the cold water side valve. It becomes possible to open the shower-side valve seat while sitting on the seat, and it is possible to ensure a shower with cold water.

【Example】

Hereinafter, the device of the present invention will be explained based on the embodiments shown in FIGS. 1 to 3. In the device 1 of the present invention, a shower outlet passage 3, a branch chamber 10, and a cold water outlet passage 5 are bored in a line in a main body 2, and an inlet passage 10 communicating with the branch chamber 10 is bored. A shower side valve seat 4 facing the shower outflow path 3 is formed at the boundary between the shower outflow path 3 and the branch chamber 11. At the boundary between the cold water outflow path 5 and the branch chamber 10, there is a cold water side valve seat 6 facing the cold water outflow path 5.
has been formed. The inflow passage 11 is narrowed at a suitable location to form a suction area 11a, and the suction area 11a and the appropriate position of the shower outflow passage 3 are communicated through a suction waterway 12. The shower outflow path 3 has a shower hose 1 at its terminal end 3a.
3 or a fixed shower head (not shown) is connected. The inflow path 11 is rotatably connected to the shower channel end 14a of the hot water mixing faucet 14. The cold water discharge path 5 has its terminal end 5a communicating with the outside. A double valve body 7 arranged inside the main body 2 connects a shower side valve body part 8 seated on the shower side valve seat 4 and a cold water side valve body part 9 seated on the cold water side valve seat 6 to a branch chamber 10.
joint 7a, selectively one valve seat 4 (or 6)
It is long enough to sit on. The multiple valve body 7 has a valve stem 15 protruding from the shower side valve body part 8, and the valve stem 15 is slidably guided by a guide tool 16 fitted into the shower outflow passage 3, and the valve stem 15 is slidably guided by the valve seat 4 (or 6). ) to ensure a smooth seating position. The double valve body 7 has a joint 7a
A dynamic pressure receiving portion 7b is provided by forming the portion with a small diameter to receive the dynamic pressure of the shower water W flowing out into the shower outflow path 3, as shown in FIG. Although not shown in the drawings, the dynamic pressure receiving portion of the multiple valve body may be formed by, for example, fixing a pressure receiving plate protruding in the radial direction of the valve shaft to the tip of the valve shaft 15. A spring body 17 that biases the multiple valve body 7 is fitted onto the valve shaft 15 and disposed between the shower side valve body 8 and the guide 16, and the spring body 17 is arranged between the shower side valve body 8 and the shower side valve seat 4. The double valve body 7 is biased in the direction of arrow A to seat it. The spring body 17 uses its spring pressure to
The dynamic pressure receiving portion 7b of the multiple valve body 7 is set to be weaker than the dynamic pressure received from the shower water W in the water flow direction (arrow B direction). The heat-sensitive operating tool 18 disposed in the cold water outflow path 5 has a heat-receiving portion 19a of a main body 19 sealed with thermal expansion wax (not shown), and an operating rod 20 slidably inserted into the main body 19. . Thermal operation tool 1
8, when the heat receiving part 19a receives the heat of the shower water W flowing through the cold water outlet path 5, the operating rod 20 is automatically protruded by the expanded expansion wax, and the output end 20a presses the double valve body 7 to open the cold water side valve. The body portion 9 is seated on the cold water side valve seat 6. Heat sensitive operating tool 18
determines the amount of protrusion of the operating rod 20 in proportion to the temperature at which it receives heat. Therefore, the heat-sensitive operating tool 18 is built into the temperature setting tool 21 in order to press the double valve body 7 with the output end 20a and set the temperature at which the cold water side valve body part 9 is seated on the cold water side valve seat 6. There is. The temperature setting tool 21 is fitted into the cylindrical portion 2a of the main body 2 so that its movement can be adjusted. The movement adjustment range of the temperature setting tool 21 is within the non-protruding output end 20 of the heat-sensitive operating tool 18.
From the position where a does not press the double valve body 7 (see Fig. 1), the non-projecting output end 20a of the thermal operating tool 18 presses the double valve body 7 to open the shower side valve seat 4 and open the cold water side. The valve seat 6 is positioned up to the opening position (see Fig. 3). The temperature setting tool 21 has a coil spring body 22 arranged therein to back up the heat-sensitive operating tool 18. This coil spring body 22 is for preventing a pressing force exceeding a permissible value from being generated at the output end 20a of the thermal operating tool 18 that presses the multiple valve body 7. The temperature setting tool 21 has an outlet 21 a at the bottom facing the cold water outlet 5 . Next, the usage method and operation of the device 1 of the present invention will be explained. First, the shower channel end 1 of the hot water mixing faucet 14
The inlet passage 11 is rotatably connected to the shower outlet passage 4a, and the shower hose 13 is connected to the terminal end 3a of the shower outlet passage 3.
Connect and complete the preparation. Next, temperature setting tool 2
1 to an appropriate temperature. In this state, the switching handle 14b of the hot water mixing faucet 14 is operated to the shower discharge side to supply shower water W to the inflow path 11 of the device 1 of the present invention. The cold shower water W supplied to the device 1 of the present invention passes through the inflow path 11, flows into the branch chamber 10, passes through the open cold water side valve body 9, and flows out into the cold water outflow path 5. Then, it is discharged to the outside from the outlet 21a of the temperature setting tool 21. When this shower water W passes through the suction area 11a of the inflow path 11, it puts the suction waterway 12 into a negative pressure state and forces the cold water remaining in the shower outflow path 3 and the shower hose 13 through the suction waterway 12. suction to. As the cold water remaining in the hot water piping etc. that supplies shower water to the device 1 of the present invention is discharged to the outside,
When hot shower water W is guided to the device 1 of the present invention, the heat-sensitive operating device 18 automatically protrudes the output end 20a of the operating rod 20 by receiving heat from the shower water W flowing through the cold water outlet path 5, and the multiple valve body 7 is pressed to seat the cold water side valve body part 9 on the cold water side valve seat 6 and open the shower side valve seat 4. Then, shower water W
shows the branch chamber 10 and the shower-side valve seat 4 in the open state.
It passes through to the shower outlet passage 3, passes through the shower hose 13, and is led to the shower head (not shown). When the hot shower water W stops flowing through the cold water outflow path 5 and the cold water outflow path 5 naturally cools down, the heat-sensitive operating tool moves to the output end 2 of the operating rod 20.
0a automatically retreats and no longer presses the double valve body 7.
However, the state in which the multiple valve body 7 is seated on the cold water side valve seat 6 and the state in which the valve is opened with respect to the shower side valve seat 4 is determined by the dynamic pressure receiving portion 7b of the multiple valve body 7 receiving from the shower water W flowing in the shower outflow path 3. Maintained by pressure. When the supply of shower water W stops, the multiple valve body 7 is pushed by the repulsion elastic force of the spring body 17 and retreats to the standby position, closing the shower side valve seat 4 and opening the cold water side valve seat 6. do. When you want to take a shower with cold water, operate the temperature setting tool 21 and move the temperature-sensitive operating tool 18 forward toward the multiple valve body 7 to open the shower side valve seat 4 and open the cold water side valve seat 6. Close the valve.

【Effect of the invention】

As described in detail above, the device of the present invention automatically discharges cold shower water and automatically guides hot shower water to the shower outflow path that can communicate with the shower head. It has the excellent effect of preventing cold water from coming out unexpectedly and allowing you to take a comfortable shower. Especially in the case of an elderly person or a young child who cannot pay attention to the initial discharge of cold water, a very safe shower can be obtained without causing death by shock due to discharge of cold water.

[Brief explanation of drawings]

The drawings all show embodiments of the device of the present invention, and FIG. 1 is a longitudinal cross-sectional view showing the device connected to a hot and cold water mixing faucet and discharging cold shower water to the outside. FIG. 2 is a longitudinal sectional view showing a state in which hot shower water is being supplied, and FIG. 3 is a longitudinal sectional view showing a state in which cold shower water is being supplied. 2...Main body, 3...Shower outflow path, 4...Shower side valve seat, 5...Cold water side outflow path, 6...Cold water side valve seat, 7...Multiple valve body, 8...Shower side valve body Part, 9... Cold water side valve body part, 10... Branch chamber, 11
... Inflow channel, 12 ... Suction channel, 17 ... Spring body, 18 ... Temperature-sensitive operation tool, 20a ... Output end, 2
1...Temperature setting tool.

Claims (1)

[Scope of Claims] 1. A main body includes a shower outflow path, a shower side valve seat facing the shower outflow path, a cold water outflow path and a cold water side valve seat facing the cold water outflow path, a shower side valve seat, and a cold water side valve. A branch chamber formed between the valve seat and the valve seat, an inflow path communicating with the branch chamber, a shower side valve body portion that seats on the shower side valve seat, and a cold water side valve body portion that seats on the cold water side valve seat are provided on both end sides. and a double valve body with a length that selectively seats on one side, and an output end that is placed in the cold water outflow path and automatically protrudes by receiving heat from the cold water outflow path, presses the double valve body to open the cold water side valve body part. The device includes a heat-sensitive operating tool that is seated on the cold water side valve seat, and a multiple valve body that urges the multiple valve body in a direction that causes the shower side valve body portion to be seated on the shower side valve seat, and the multiple valve body is operated from the shower water flowing out into the shower outflow path. An initial cold water draining device for a shower, comprising a spring body having a spring pressure weaker than the water pressure in the shower water outflow direction that the body receives. 2. The initial cold water draining device for a shower according to claim 1, wherein a suction area is formed in the inflow path, and the suction area and the shower outflow path are communicated with each other. 3. According to claim 1 or 2, the heat-sensitive operating tool is movably arranged in the cold water outflow path so that a non-projecting output end of the heat-sensitive operating tool can press a double valve body to perform a cold water shower. Initial cold water drain tool for shower.