JP2827551B2 - Shower equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small shower device used in a bathroom or a shower room and capable of reliably draining residual water.

[0002]

2. Description of the Related Art A conventional shower apparatus will be described below. As shown in FIG. 4, an original solenoid valve 5 and a tapping solenoid valve 6 are interposed between a water heater 3 having a pump 2 in a water channel 1 and a shower discharge port 4 from the water heater 3 side. A drainage electromagnetic valve 9 is provided in a drainage passage 8 communicating with a hot water supply passage 7, and the tapping electromagnetic valve 6 has a configuration in which a pilot-type electromagnetic valve 10 and a direct-acting electromagnetic valve 11 are connected in parallel. The use of the shower is stopped by opening and closing the solenoid valve 5 and the pilot solenoid valve 10, and when the shower is not used for a long time, the pilot solenoid valve 10 and the drain solenoid valve 9 are opened by drainage operation. The residual pressure in the hot water supply path 7 is released by opening the pilot solenoid valve 10, the drainage solenoid valve 9 and the direct-acting solenoid valve 11 are easily opened, and water remaining in the hot water supply path 7 after the original solenoid valve 5 is removed. It was proposed to drain the water. (See, for example, Japanese Utility Model Application Laid-Open No. 63-69913.) The pilot solenoid valve 10 and the direct solenoid valve 1
FIG. 5 shows a configuration of a tapping solenoid valve 6 in which the solenoid valves 1 are connected in parallel.

[0003]

However, in the above-mentioned conventional structure, a pilot solenoid valve and a direct-acting solenoid valve must be connected in parallel to one shower outlet as tapping solenoid valves. Therefore, there has been a problem that the tapping solenoid valve is large and the cost is high, a large installation space is required, the entire shower device becomes large, and it is difficult to install the shower device in a small bathroom.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a shower device which can be installed in a small space, can surely drain residual water, and can use hot and cold water in an appropriate temperature range. .

[0005]

In order to solve this problem, a shower apparatus according to the present invention comprises a main opening / closing valve, an electric drainage opening / closing valve, an electric hot water opening / closing valve at a shower discharge port, and a main opening / closing valve. A hot water supply path communicating with the hot water supply opening / closing valve, a drainage path communicating the hot water supply path with the drainage opening / closing valve and the drainage outlet, and a temperature detector disposed in the hot water supply path, receiving a temperature signal from the temperature detector. It has a configuration provided with control means for opening and closing each on-off valve.

[0006]

With this configuration, when the original opening / closing valve and the electric hot water opening / closing valve are opened by the use operation of the shower, the water reaches the fully opened flow rate while gradually increasing without the hot water being spouted from the shower discharge port like a solenoid valve. Will be operated. If the temperature of the hot water in the hot water supply channel is not within the appropriate temperature range, the hot water in the hot water supply channel is drained from the drain outlet.

[0007]

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a hot water supply pipe 15 extending from a hot water supply inlet 13 to a main opening / closing valve 14 is provided in the shower body 12.
In addition, a temperature detector 16 and a flow rate switch 17 are provided, and a shower hot water outlet 18, an overhead shower outlet 19, a mist shower outlet 20, and a hand shower outlet 21 are provided on the surface of the shower body 12. ing. Electric hot water supply opening / closing valves 23, 24, 25, 26 are provided in a hot water supply passage 22 extending from the main opening / closing valve 14 to each of the shower discharge ports 18, 19, 20, 21.
Further, a drainage channel 27 is provided in communication with the main opening / closing valve 14 and the hot water supply channel 22, and a drainage outlet 28 is provided at a terminal of the drainage channel 27. An electric drainage opening / closing valve 29 is disposed between the drainage outlet 28 and the hot water supply passage 22. In addition, the main open / close valve 14, the temperature detector 16, the flow switch 17, the hot water open / close valve 23,
4, 25, 26 and the drainage on-off valve 29 are all electrically connected to the control device 30.

As shown in FIGS. 2 and 3, tapping on-off valves 23, 24, 25, 26 and a drainage on-off valve 29 are provided with a reduction gear group 3 for transmitting rotation of a motor 31 to a ball valve 32.
3. Seal packing 35 of ball valve 32 and valve body 36
It is composed of Output gear shaft 3 of reduction gear group 33
4 is a pin 3 having one end connected to the transmission shaft 37 of the ball valve 32.
8 and the other end is connected to the magnetic sensing element 3
In this configuration, a permanent magnet 41 is fixed to a shaft 34 so as to rotate against a printed circuit board 40 on which the substrate 9 is disposed. Ball valve 32
Is a form in which a round hole is penetrated through a sphere.

The operation of the shower apparatus having the above-described configuration will be described below. When the operation unit (not shown) of the shower body 12 instructs discharge from the overhead shower discharge port 19, the control device 30 first opens the original on-off valve 14 and checks the temperature signal of the temperature detector 16, If the temperature of the hot water is not in the proper temperature range from 36 ° C. to 46 ° C., the drain opening / closing valve 29 is opened to drain the hot water,
Eliminate so-called dead water. When it is confirmed from the temperature signal of the temperature detector 16 that the temperature of the hot water is within the appropriate temperature range, the hot water supply on-off valve 25 is opened and the drainage on-off valve 29 is closed.
At this time, since it is an electric hot water opening / closing valve, since the hot water does not spout from the shower discharge port 19 suddenly like a solenoid valve, it operates so as to reach the full open flow rate while gradually increasing, so that it is unexpectedly surprised. There is an effect that can be prevented. Then, when an instruction to stop the shower is issued from the operation unit, the hot water supply on-off valve 25 and the main on-off valve 14 are operated to close. Thereafter, the time during which the shower is not used elapses, and the temperature of the hot water in the hot water supply path 22 decreases, and the temperature detector 1
When the temperature signal at 6 indicates that the temperature has dropped to a predetermined temperature of 35 ° C. or less, the drainage on-off valve 29 and the hot water on-off valve 25 are operated to open, and the hot water in the hot water supply passage 22 is drained from the drainage outlet 28. Therefore, when the shower is used again, it is possible to prevent the user from feeling unpleasant by taking the cold water remaining in the hot water supply path 22. At this time, since the hot water supply opening / closing valve 25 and the drainage opening / closing valve 29 are electrically operated, even if there is residual pressure in the hot water supply passage 22, there is no problem that the valve is difficult to open like the direct-acting solenoid valve 11, and the opening is easy. There is an effect that the valve can be drained reliably. Further, unlike the pilot type solenoid valve, the problem that water remaining in the back pressure chamber of the diaphragm or the cylinder portion of the electromagnetic plunger freezes in cold weather and cannot be opened is unlikely to occur. This is because, as can be seen from FIGS. 2 and 3, there is no place where water is accumulated such that opening and closing are hindered. In addition, there is no need to form a tapping solenoid valve by connecting a pilot solenoid valve and a direct-acting solenoid valve in parallel, as in the conventional case. In addition, residual water can be reliably drained at low cost.

Further, the electric on-off valve of the embodiment is a ball valve 3
Numeral 2 penetrates a round hole in the sphere, forms an opening in the direction of 180 degrees, and attaches two permanent magnets 41 on the surface orthogonal to the axis 34 that rotates synchronously with the ball valve 32 around the axis 34.
Attached in the 0-degree direction, the axis 3
4 and two magnetic sensing elements 39 in the 90-degree direction.
Is fixed, so that the ball valve 32
The passage can be opened and closed each time it rotates, and it can be stopped at that position. That is, even if the ball valve is rotated by 90 degrees, the opening and closing time is about 2 seconds, which is the same as the opening and closing time of the pilot solenoid valve, and there is no concern about water hammer.

The control means 30 controls the drainage on-off valve 29 and the hot water on-off valves 23, 24, 2 when the original on-off valve 14 is closed and the temperature detected by the temperature detector 16 is lower than a predetermined temperature.
A temperature detecting unit for opening 5, 26; an opening / closing state detecting unit for a main open / close valve, a hot-water open / close valve and a drainage open / close valve; Regardless of which shower outlet is used, if the temperature detected by the temperature detector 16 falls below a predetermined value, the original on-off valve 14
Since the subsequent operation of the hot water supply channel 22 is performed so as to be drained, it is possible to prevent the cold water remaining in the shower main body 12 from being bathed at the beginning of the shower. In this case as well, if the hot water opening / closing valve and the drainage opening / closing valve are not electrically driven and are pilot-operated solenoid valves, water in the pipes is likely to remain, and even if such a control device 30 is configured, the effect is small.

Further, the control device 30 determines whether the temperature detected by the temperature detector 16 is outside the predetermined temperature range,
It comprises a temperature detecting unit for closing the drainage opening / closing valve 29 to open the drainage opening / closing valve 29, an opening / closing state detecting unit for the hot water opening / closing valve and the drainage opening / closing valve, and an opening / closing instruction unit for the hot water opening / closing valve and the drainage opening / closing valve. In addition, cold water upstream of the original on-off valve, so-called dead water, can be eliminated to prevent unpleasant thoughts, and hot water can be eliminated to prevent danger such as burns.

[0014]

As is apparent from the above description of the embodiment, the present invention relates to a main open / close valve, an electric drainage open / close valve, an electric hot water open / close valve at the shower discharge port, a main open / close valve and a hot water open / close valve. A hot water supply path communicating with the valve, a hot water supply path, a drainage opening / closing valve, and a drainage path connecting the drainage outlet, and a temperature detector disposed in the hot water supply path. With the configuration provided with the control means for opening and closing, a superior shower device which can be installed in a small space, can surely drain residual water, and can use hot and cold water in an appropriate temperature range can be realized.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing the concept of a shower device according to one embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an open state of an electric on-off valve of the shower device according to the embodiment;

FIG. 3 is a cross-sectional view showing a closed state of an electric on-off valve of the shower device according to the embodiment;

FIG. 4 is a configuration diagram showing the concept of a conventional shower device.

FIG. 5 is a cross-sectional view of a tapping solenoid valve of a conventional shower device.

[Explanation of symbols]

 14 Source open / close valve 16 Temperature detector 18, 19, 20, 21 Shower discharge port 22 Hot water supply path 23, 24, 25, 26 Hot water supply open / close valve 27 Drainage path 28 Drainage discharge port 29 Drainage open / close valve 30 Control means

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47K 3/22

Claims (3)

(57) [Claims] A first opening / closing valve, an electric drainage opening / closing valve, an electric hot water opening / closing valve at a shower discharge port, a hot water supply path communicating the original opening / closing valve and the hot water opening / closing valve, A shower provided with a drainage passage communicating a drainage opening / closing valve and a drainage outlet, and a temperature detector disposed in the hot water supply passage, and control means for opening and closing the respective opening / closing valves in response to a temperature signal from the temperature detector. apparatus. 2. The shower apparatus according to claim 1, further comprising a control means for opening the drainage opening / closing valve and the hot water opening / closing valve when the main opening / closing valve is closed and the temperature signal of the temperature detector is lower than a predetermined temperature. . 3. The shower device according to claim 1, further comprising control means for closing the hot water supply on-off valve and opening the drainage on-off valve when the temperature signal of the temperature detector is out of the predetermined temperature range.