JPH0956628A - Shower device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shower device having a water drain valve for discharging hot water remaining in a shower hose after use of a shower. SOLUTION: A water drain valve 15 is attached on the base end part of a shower hose, and mainly composed of a storing hole 19, a valve element 24, a spring 26 and a valve holder 21. The valve element 24 is energized to the water passing hole 18 side by the spring 2 6. Hot water in the interior of the shower hose is discharged through a passage including a round hole 20, a notch part 27, the storing hole 19, a valve hole 22 and an oblong hole 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shower device used at home, for example.

[0002]

2. Description of the Related Art Generally, in the case of using a shower, the temperature of hot water is adjusted by mixing water and hot water sent through a water heater at a mixing tap.

[0003]

By the way, after the shower is used, the shower head is hung on the shower hook. At that time, the unused hot water remains inside the shower hose. If the shower is left unused for a long time in this state, it will be unsanitary the next time it is used.

Immediately after taking a shower with hot water,
When a child or the like uses the shower, if hot water remains in the shower hose, there is a risk of burns. On the contrary, in winter, when the water in the hose gets cold, I feel cold.

Furthermore, in cold regions, the water in the shower hose may freeze, causing damage to the shower hose. The present invention has been made by focusing on the problems existing in such a conventional technique. Its main purpose is to provide a shower device that discharges the residual hot water in the shower hose after the shower is used.

[0006]

In order to achieve the above object, the invention of a shower device according to claim 1 provides:
At the other end of the shower hose, a water drain valve that is opened to the atmosphere when the pressure inside the shower hose is below the water head pressure is provided.

In the invention of the shower apparatus according to the second aspect, the shower hose is connected to one outlet side of the branch faucet, and the drain valve is provided at the connecting portion of the shower hose to the branch faucet. .

According to another aspect of the present invention, the water drain valve includes a valve body and a spring for urging the valve body in a direction to open the valve body. Normally, the valve body is opened by the spring. The valve body is closed against the spring force when a pressure exceeding the head pressure is applied.

Therefore, in the invention of the shower device according to the first aspect, since the shower hose is provided with the water drain valve, the hot and cold water inside the shower hose can be discharged after the shower is used.

According to the invention of the shower device described in claim 2, in the shower hose connected to the branch faucet, the hot and cold water inside the shower hose can be discharged after the shower is used, and further, the discharge is possible. It can be done reliably.

In the invention of the shower apparatus according to the third aspect, the water drain valve is composed of a valve body and a spring for urging the valve body in a direction to open the valve body, and the valve is opened and closed by utilizing water pressure. For control, the valve is automatically closed when the shower is used and is automatically opened even after the shower is used.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.

The mixing plug 1 is connected at its right end to a water side crank 2 through which cold water passes, and at its left end to a hot water side crank 3 through which hot water from a water heater (not shown) passes. A water side handle 4 and a hot water side handle 5 for adjusting the flow rates of the cold water and the hot water when the cold water and the hot water are mixed in the mixing tap 1 are provided at the upper right end and the upper left end of the mixing tap 1, respectively. ing. The discharge port 6 from which the hot water mixed with the mixing stopper 1 and whose temperature is adjusted is discharged,
It is connected to the lower central part of the mixing stopper 1. Switching cock 7
Is for switching from the flow path to the discharge port 6 to the flow path to the shower hose 8 (or vice versa), and is provided on the front surface of the central portion of the mixing stopper 1.

The joint 12 is connected and fixed to the connecting portion 14 provided at the upper end of the central portion of the mixing stopper 1 by the screwing relationship of the male screw portion 16. The shower hose 8 has a joint 12 at one end through a mounting screw 13.
Is connected to the female threaded portion 17 by a screwing relationship. The shower head 9 is connected to the upper end of the shower hose 8 through a connecting fitting 10, and the shower head 9 is supported by the shower hook 11 at the connecting fitting 10.

Next, the structure of the joint 12 will be described in detail. As shown in FIG. 2, the water drain valve 15 is provided in a part of the joint 12. The male screw portion 16 screwed into the connecting portion 14 of the mixing stopper 1 is formed at the lower end portion of the joint 15. A female screw portion 17 that is screwed into a mounting screw 13 for connecting to the shower hose 8 is formed on the upper end portion of the joint 15. A water passage 18 through which hot water passes is penetrated through the center of the joint 15. An accommodating hole 19 for accommodating the substantially cylindrical valve body 24 is provided in a side surface of the joint 15, and an inner end surface of the accommodating hole 19 projects into the water passage 18. The circular hole 20 is provided on the inner end surface of the same and communicates the inside of the accommodation hole 19 with the water passage 18.

The valve holder 21 is mounted so as to cover the outer end portion of the accommodation hole 19, and a valve hole 22 is provided at the center thereof. Rectifying cap 28
Is attached so as to cover the outside of the valve holder 21, and a plurality of long holes 29 are provided near the center thereof.
Is transparently installed.

As shown in FIG. 3, the protrusion 25 and the notch 2 are provided.
The cylindrical valve body 24 having 7 is housed inside the housing hole 19 and is urged by the spring 26 toward the water passage 18 side. The ring-shaped valve seat 23 is arranged around the valve hole 22 of the valve holder 21, and when the valve body 24 is urged outward (to the right side in FIG. 2) by water pressure, the front surface of the valve body 24. It serves as a packing to prevent the hot water from leaking outside.

Next, the operation of the shower device of this embodiment having the above-described structure will be described. The hot and cold water mixed by the mixing tap 1 is made to flow toward the shower hose 8 by the switching of the switching cock 7 and discharged from the shower head 9 through the shower hose 8. The operation of the water drain valve 15 at this time will be described with reference to FIGS.

FIG. 2 shows the state of the water drain valve 15 when no water pressure is applied, that is, when the shower is not used. The valve element 24 as shown in FIG.
It is urged toward the water passage 18 by 6, and the end face of the valve body 24 is in contact with the inner end face of the accommodation hole 19.

When the shower is used, hot and cold water is passed through the water inlet 1.
You will pass 8. At this time, since the accommodation hole 19 is connected to the water passage 18 by the circular hole 20 provided on the inner end surface, hot water flows into the accommodation hole 19 through the circular hole 20. When hot water flows into the accommodation hole 19, the valve body 24 receives water pressure. This water pressure pushes the valve body 24 out of the accommodation hole 19 against the spring force of the spring 26.

FIG. 4 shows the drain valve 1 when water pressure is applied to the valve body 24, that is, when a shower is used.
5 shows the state of No. 5. As shown in the figure, the valve body 24 that receives water pressure is moved to the side of the flow regulating cap 28 against the spring force of the spring 26. At this time, the protrusion 2 of the valve body 24
5 is fitted in the valve hole 22 of the valve holder 21, and the front end face of the valve body 24 is received by the ring-shaped valve seat 23. The ring-shaped valve seat 23 functions as a packing, and when water pressure is applied, the valve body 2
The water is not leaked from the joint 12 to the outside due to the close contact with the front surface of No. 4.

Now, when the shower is finished using, the inflow of hot water into the shower hose 8 is stopped. When the pressure in the shower hose 8 becomes equal to or lower than the head pressure when the shower head 9 is supported by the shower hook 11, the valve body 24
The water pressure acting on the valve decreases, the spring force of the spring 26 moves the valve element 24 toward the water passage 18 and shifts to the state of FIG. As a result, the protrusion 25 of the valve body 24 that has closed the valve hole 22 of the valve holder 21 retracts, and the circular hole 20 and the cutout 2
Flow paths such as 7, the receiving hole 19, the valve hole 22, and the elongated hole 29 are formed. Therefore, the hot water in the shower hose 8 is gradually discharged to the outside through the flow path.

In this embodiment, since the water drain valve 15 is provided at the base end of the shower hose 8, the hot and cold water inside the shower hose 8 can be reliably discharged to the outside. As described above, in the present embodiment, the water drain valve 15 is closed during use of the shower, and the water drain valve 15 is opened after use of the shower. Therefore, residual water is discharged without remaining inside the shower hose 8 after use of the shower. To be done. In addition, the drain valve 15
Since water pressure is used to control the opening and closing of, there is no need to perform any extra operation other than using a normal shower.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, as shown in FIG. 5, in the shower device in the first embodiment, the shower hose 8 in FIG.
Not the connecting portion 14 at the upper center of the mixing stopper 1, but the mixing stopper 1
Is connected to the lower surface of.

In this embodiment, the joint 12 is provided in the middle of the shower hose 8. Further, at the position of the joint 12, the shower hose 8 is the shower hook 11
It is near the lowest point of the shower hose 8 when it is fitted and supported by. When the joint 12 is arranged at such a position, the remaining hot water can be discharged most efficiently without leaving the hot water inside the shower hose 8. Other functions and effects are the same as those of the first embodiment.

The present invention is not limited to the configuration of the above-described embodiment, but can be embodied by arbitrarily changing the configuration as follows, for example. (1) In the first and second embodiments, the water drain valve 1
Provide 5 or more. (2) In the first and second embodiments, the shower hose 8 is connected to a faucet other than the mixing tap.

The technical idea other than the claims understood from the above embodiment will be described below together with the effects thereof. (1) The shower apparatus according to claim 1, wherein the water drain valve is provided near the lowest point of the shower hose when the shower hose is supported by the shower hook.

In this way, the remaining hot water in the shower hose can be discharged most efficiently. (2) The shower device according to claim 3, wherein opening and closing of the water drain valve is automatically controlled using water pressure.

With this arrangement, it is not necessary to perform extra operations before and after using the shower.

[0030]

As described above in detail, according to the invention of the shower device described in claim 1, the hot and cold water inside the shower hose can be completely discharged after the shower is used, so that it can be sanitized in the next use. Target.

Further, there is no danger of getting burned immediately after taking a hot shower, and in the winter, the cold water remaining in the hose does not make me feel cold. In cold climates, there is no risk of the water inside the shower hose freezing and damaging the shower hose.

According to the invention of the shower device described in claim 2, in the shower hose connected to the branch faucet, the residual hot water inside the shower hose can be discharged.

According to the invention of the shower device described in claim 3, since the opening and closing of the joint is automatically controlled by the water pressure, it is not necessary to perform any extra operation when discharging the remaining hot water in the hose.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of a shower device embodying the present invention.

FIG. 2 is a vertical sectional view showing a drain valve.

FIG. 3 is a perspective view showing a valve body of the water drain valve.

FIG. 4 is a vertical cross-sectional view showing a state in which the water drain valve is closed.

FIG. 5 is a front view showing a second embodiment.

[Explanation of symbols]

3 ... Mixing stopper for mixing hot water and water, 8 ... Shower hose,
9 ... Shower head, 15 ... Drain valve, 24 ... Valve body, 2
6 ... Spring, 27 ... Notch through which the remaining hot water passes.

Claims (3)

[Claims] 1. A shower device comprising a shower hose and a shower head connected to one end of the shower hose, wherein the other end of the shower hose is opened to the atmosphere when the inside of the shower hose is below head pressure. Shower device with a drain valve. 2. The shower device according to claim 1, wherein the shower hose is connected to one outlet side of the branch faucet, and the drain valve is provided at a connection portion of the shower hose to the branch faucet. 3. The water drain valve includes a valve body and a spring that urges the valve body in a direction to open the valve body. Normally, the valve body is held in an open state by a spring, and a pressure exceeding the head pressure is applied. The valve body is closed against the spring force when acted upon.
Or the shower device described in 2.