JP2573304Y2 - Water spouting device - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention relates to a hot water supply channel and water supplied from a water supply channel mixed with a mixing tap or the like to discharge water from a water discharge port such as a shower water discharge port and the hot water supply path. The present invention relates to an improvement of a water discharge device provided with a soot water drain valve for draining hot water having a lowered temperature before use in a shower.

[0002]

2. Description of the Related Art A conventional water spouting device has a water function to prevent the low-temperature hot water from being spouted at the start of shower spouting by draining hot water whose temperature has fallen in the hot water supply channel as described above before next spouting. Some are equipped with: The water discharge device includes a plurality of types of shower water discharge ports 10 such as an overhead shower 100a, a body shower 100b, and a hand shower 100c as shown in FIG. 3, for example.
After the hot water and the water supplied from the hot water supply channel 102 and the water supply channel 101 are mixed to a predetermined temperature by the mixing plug 103, the flow control valve 104 and the opening and closing provided corresponding to each shower water outlet 100 are provided. The water is discharged from each shower water outlet 100 through the valve 105. Also,
A hot water supply line 102 for supplying hot water to the mixing tap 103 has a drain valve 106 for all water and a temperature sensor 1 for detecting hot water temperature.
08 is provided. The temperature of the hot water in the hot water supply passage 102 decreases with the passage of time, and is then discharged as low-temperature water at the start of shower water discharge. After the hot water in the hot water supply channel 102 has dropped to a predetermined temperature or lower as described above, the drain valve 106 for a hot water is opened when the next shower is used, and the low-temperature hot water in the hot water supply channel 102 is drained. Then, the hot water is replaced with new hot water to discharge the mixed water at an appropriate temperature together with the start of the shower water discharge. Conventionally, the mixed water is provided on the secondary side of the check valve 107, immediately before the mixing plug 103.

[0003]

As described above, the check valve 1 provided in the hot water supply path 102 is provided with the drain valve 106 for all water.
The secondary side of 07 and immediately before the mixing plug 103 are for the purpose of draining the low-temperature hot water in the hot water supply passage 102 without leaving it. However, the water supply channel 1
When the water pressure in 01 is relatively large, water in water supply channel 101 may flow into hot water supply channel 102 through the mixing tap. Under this situation, the drainage valve for all water 106
When the water is drained by opening the valve, the water from the water supply channel 101 flows back into the hot water supply channel 102 and is drained from the water drain valve 106 together with the hot water in the hot water supply channel 102. As a result, the temperature value of the hot water detected by the temperature sensor 108 does not rise as in the normal state, so that the water is drained for a longer time than usual, so that there is a problem that the water cannot be efficiently drained. The present invention provides a water discharge device as described above, which is provided with a means for preventing the backflow water from the water supply channel from being drained from the water drain valve provided in the hot water supply channel, whereby the water in the water supply channel is provided. It is an object of the present invention to eliminate the problem of the water that occurs when the water pressure is high.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention of the present application is to mix hot water and water supplied from a hot water supply channel and a water supply channel by a mixing device and discharge the water from a water discharge port. A temperature sensor for detecting the temperature of the hot water in the hot water supply path is provided in the road, and when the hot water temperature detected by the temperature sensor is equal to or lower than a predetermined value, the hot water in the hot water supply path is started before water is discharged from the water outlet. In the spouting device provided with a drain valve for automatically draining soot water, a check valve is provided in the hot water supply path, and a drain valve for water is provided on the primary side of the check valve in the hot water supply path, The temperature sensor is provided near the connection between the water drain valve and the hot water supply path.

[0005]

According to the above-mentioned means, the drain valve for all water is provided on the primary side of the check valve of the hot water supply passage, and when the valve is opened, the low-temperature hot water on the primary side from the check valve is automatically drained. And replace it with a new hot water supply. Also, when the water pressure in the water supply channel is higher than the water pressure in the water supply channel, the water in the water supply channel attempts to flow into the water supply channel through the mixing tap, but the flow is stopped by the check valve in the water supply channel. In addition, it is possible to prevent the drainage for the drainage water provided on the primary side of the check valve from reaching. A temperature sensor is provided at a connection portion between the drain valve for the flush water and the hot water supply path on the primary side of the check valve, and when the temperature of the hot water detected by the temperature sensor is equal to or lower than a predetermined value, The hot water in the hot water supply channel on the primary side of the check valve whose temperature has dropped due to the opening of the drain valve is drained. The above-mentioned drainage is performed before starting water discharge from the water discharge port, and the temperature of the hot water in the hot water supply passage on the primary side of the check valve is maintained at a predetermined temperature or higher.

[0006]

[Effect of the Invention] As described above, in the present invention, since the drain valve for all water is disposed on the primary side of the check valve provided in the hot water supply passage, the water pressure of the water supply passage is higher than the water pressure of the hot water supply passage. The flow of low-temperature water flowing backward from the water supply channel into the hot water supply channel can be stopped by the check valve of the hot water supply channel to prevent the water from flowing to the water drain valve. It is possible to solve the problem of the soot water caused by the backflow of water. In addition, although the temperature of the hot water in the hot water supply path varies depending on the location, the temperature sensor is provided near the connection between the hot water supply path communicating with the primary side of the check valve and the drain valve for the water supply. It is possible to detect the temperature of the hot water near the connection point of the drainage valve for the drainage water as accurately as possible. As a result, the temperature of the drainage water is accurately controlled, and the hot water temperature at the drainage point is reduced. When the temperature is lowered to the predetermined temperature, the water can be reliably drained. Furthermore, since the connecting portion between the hot water supply path and the drainage water drain valve is located on the primary side of the check valve that requires drainage most, effective drainage of drainage water can be performed. At the same time, the hot water cooled down on the hot water supply path primary side can be replaced with new hot water without remaining over the entire length of the hot water supply path primary side.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The water spouting device shown in FIG. 1 is installed so as to fit into a part of the peripheral wall of the unit bathroom, and a plurality of types of shower water spouts 11 to 16 are provided at required portions of a vertically long main body panel a. It is configured.

The main body panel a is formed in a vertically long shape using a synthetic resin panel, and a discharge shower a1, a spray shower 12, a spray shower 12, and a discharge part a1 formed obliquely downward at the upper end of the main body panel a. Micro shower 13-3
An overhead shower 10 configured by collecting shower water outlets is attached. A hand shower 14 is provided at the center of the main body panel a so that the supporting position can be slid and adjusted along the body shower 15 and the slide bar 14a. Further, a counter b provided along the lower part of the main body panel 1 is provided. Is provided with a curran 16 on its rising surface.

FIG. 2 shows a piping system of the above-mentioned water discharger, in which hot water and water supplied from a water supply pipe 1 and a hot water supply pipe 2 are mixed with mixed water at a predetermined temperature via a manual mixer tap 3. After the flow rate of the mixed water mixed by the mixing tap 3 is adjusted by the manual flow control valve 4, the mixed water is supplied to the shower water outlets 11 to 15 and the curran 16 via the water supply channels 21 and 22. 31-3
Reference numeral 6 denotes an electromagnetic valve provided corresponding to each of the shower water outlets 11 to 15 and the callan 16, and the operation of these electromagnetic valves 31 to 36 is controlled by the control unit 40. Further, an operation panel 18 provided at the center of the main body panel 1 and an operation panel 17 provided at the callan 16 are electrically connected to the control unit 40 described above. By opening and closing the electromagnetic valves 31 to 36, water is discharged from desired shower water outlets 11 to 15 and the curran 16.

In the above-described water discharging device, a water drainage valve 5 is provided in the hot water supply passage 2. The drain valve 5 is an electromagnetic valve whose operation is controlled by the control unit 40 described above.
Connected to the primary side of the check valve 2a provided in the
Drain 5 attached to the rising surface of counter b via
Called 2 The check valve 2a of the hot water supply path 2 is a valve for preventing hot water supplied into the water supply paths 21 and 22 on the secondary side of the mixing tap 3 of the water discharging device from flowing back into the hot water supply path 2, It is provided in combination with the strainer 2b and the water stopcock 2c. The water supply channel 1 is also provided with a check valve 1a, a strainer 1b, and a water stopcock 1c for the same reason as described above. A temperature sensor 6 for detecting the temperature of the hot water in the hot water supply path 2 is provided immediately before the connection of the drain valve 5 in the hot water supply path 2, and is electrically connected to the control unit 40.

The above-mentioned drain valve 5 for draining water opens when the shower water is discharged in a situation where the hot water supply in the hot water supply channel 2 is lowered with the passage of time, and the low temperature hot water in the hot water supply channel 2 is discharged. It's all water. Specifically, the operation panel 1
When the shower water discharge operation is performed by 8, 17,
When the hot water temperature detected by the temperature sensor 6 of the hot water supply path 2 is equal to or lower than a predetermined value, the valve is opened by a signal from the control unit 40.

When the drain valve 5 for water is opened, the hot water in the section from the hot water supply source (not shown) to the connection part of the drain valve 5 for all water is gradually drained and newly supplied from the hot water source. Replaced with hot water of high temperature. The rinsing water thus performed continues until the temperature of the hot water detected by the temperature sensor 6 provided in the hot water supply passage 2 becomes equal to or higher than a predetermined value, or the drain valve 5 is closed after a predetermined time period. Valve is stopped. When the flushing is completed, the target on-off valves 31 to 36 are normally opened, and the desired shower water outlet 11 is opened.
Water discharge is started from # 16.

By the way, under the conditions of the installation location of the water discharge device, the water pressure in the water supply channel 1 may be considerably higher than the water pressure in the water supply channel 2, and in such a case, the low-temperature water in the water supply channel 1 may be used. May flow through the mixing tap 3 and into the hot water supply path 2. However, according to the above-described water discharging device, it is possible to prevent the backflow of the low-temperature water into the water supply passage 2 by the check valve 2a to prevent the water from flowing to the installation location of the water drain valve 5 and the temperature sensor 6. it can. According to this, it is possible to solve the problem of the drainage caused by the backflow of the low-temperature water caused by the conventional water discharge device, and to always perform normal drainage.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a water discharge device embodying the present invention.

FIG. 2 is a piping diagram of the water discharging device.

FIG. 3 is a piping diagram of a conventional water discharging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Water supply path 2 ... Hot water supply path 2a ... Check valve 3 ... Mixer tap 5 ... Drain valve for soot water 6 ... Temperature sensor

Claims (1)

(57) [Scope of request for utility model registration] 1. A hot water supply path and hot water and water supplied from a water supply path are mixed by a mixing device to discharge water from a water discharge port, and the hot water supply path is provided with a temperature sensor for detecting a hot water temperature of the hot water supply path, A spouting device provided with a water drain valve for automatically draining hot water from the hot water supply channel before starting spouting from the spout when the hot water temperature detected by the temperature sensor is equal to or lower than a predetermined value; In the above, a check valve is provided in the hot water supply path, and a drainage valve for water is provided on the primary side of the check valve of the hot water supply path, and the connection between the water drainage valve for water and the hot water supply path is performed together with the temperature sensor. A water discharge device provided near the section.