JPH05285181A - Remaining water eliminating device for shoulder pad shower for bathtub - Google Patents

Abstract

PURPOSE:To prevent the piping from being frozen by removing water in a shoulder pad shower feed water tube, as well, when water in a bathtub is removed, and leaving no water in the piping. CONSTITUTION:In a shoulder pad shower equipment 17 of a flange 2 of a bathtub 1, a shoulder pad nozzle 3 is provided. A ciculating pump 8 for allowing water in the bathtub 1 to circulate and the shoulder pad nozzle 3 are allowed to communicate with each other by a shoulder pad shower feed water tube 18, and also, in the shoulder pad shower feed water tube 18, a shoulder opening/ closing valve 26 consisting of a motor-driven valve is provided. When the circulating pump 8 is stopped, the shoulder opening/closing valve 26 becomes a closed stage. In this case, a water level sensor S for detecting that water in the bathtub 1 is removed is provided in the circulating pump 8. When it is detected by the water level sensor S that water in the bathtub 1 is removed, control is executed so that the shoulder opening/closing valve 26 is opened. In such a way, when water in the bathtub 1 is removed, it is detected by the water level sensor S, and by opening the shoulder opening/closing valve 26, remaining water in the shoulder pad shower feed water tube 18 is removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shower device for a shoulder rest of a bathtub used for massaging the shoulder by giving a strong jet of shower water to the shoulder while taking a bath. It relates to a structure for draining water from a shower water supply pipe.

[0002]

2. Description of the Related Art In a conventional shower device for a shoulder rest of a bathtub, a shoulder rest shower device attached to a flange of the bathtub is provided with a shoulder rest nozzle for spraying shower water toward the shoulder of a bather, The circulation pump that circulates water in the bathtub and the shoulder pad nozzle are connected by a shoulder pad shower water supply pipe, and the shoulder pad shower water pipe is provided with a shoulder opening / closing valve that is an electric valve. Then, the circulation pump is driven to open the shoulder on-off valve to supply water to the shoulder pad nozzle, and shower water is jetted from the shoulder pad nozzle to massage the shoulder. By the way, if the circulation pump is driven with the shoulder on-off valve opened, water may suddenly jump out of the shoulder pad nozzle, and a strong jet may hit the eyes and ears, which is dangerous. For this reason, when the circulation pump is not operated, the shoulder on-off valve is controlled to be closed.

[0003]

However, if the above-mentioned control is performed, even if the water in the bathtub is drained, water will not flow in the shoulder shower water supply pipe between the shoulder nozzle and the shoulder opening / closing valve. There is a problem that the water in the pipe freezes when the outside air temperature drops to below zero, causing pipe cracking.

The present invention has been made in view of the above problems, and an object of the present invention is to remove water from the shower water supply pipe for shoulder when the water in the bathtub is drained, and It is to provide a residual water removing device for a shower for a shoulder rest of a bathtub which can prevent freezing of piping.

[0005]

In order to achieve the above object, the residual water removing device for a shoulder rest shower of a bath tub according to the present invention comprises a shoulder rest shower device 17 mounted on a flange 2 of a bath tub 1.
A shoulder pad nozzle 3 for injecting shower water toward the shoulder of the bather is provided in the bathtub, and a circulation pump 8 for circulating the water in the bathtub 1 and the shoulder pad nozzle 3 are connected to the shoulder pad shower water supply pipe 18.
Shoulder opening / closing valve 26, which is an electrically operated valve, is provided in the shoulder shower water supply pipe 18, and the shoulder opening / closing valve 26 is closed when the circulation pump 8 is stopped. In the apparatus, the circulation pump 8 is provided with a water level sensor S that detects when the water in the bathtub 1 is drained, and when the water level sensor S detects that the water in the bathtub 1 is drained, the on-off valve 26 for the shoulder is opened. It is characterized by being controlled to.

[0006]

According to the above construction, the water in the bathtub 1 is drained and the bathtub 1 is drained.
When it becomes empty, the water level sensor S detects it, which opens the shoulder on-off valve 26 and drains the water from the shoulder pad shower water supply pipe 18.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 is a perspective view of the whole bath 1, and FIG. 3 is a pipeline diagram showing the whole system. A circulation pump 8 is arranged on the side of the bathtub 1, and a suction port 9 and the circulation pump 8 in the bathtub 1 are connected by a suction pipe 10. The circulation pump 8 removes hot water in the bathtub 1. Can be inhaled.
Further, on the inner wall surface of the bathtub 1, a plurality of back jet nozzles 11 and jet feet 12 for jetting hot water mixed with bubbles are provided in the bathtub 1, and the jet nozzles 11 and 12 and the circulation pump 8 are provided. Are connected by nozzle water supply pipes 13 and 14,
Bath water can be supplied to the injection nozzles 11 and 12. The flange 2 of the bath tub 1 is provided with an air intake port 15, and the air intake port 15 and the injection nozzles 11 and 12 are connected by an air pipe 16, whereby the injection nozzle 1
Air can be supplied to 1 and 12. Bathtub 1
A pair of shoulder rest shower devices 17 are arranged on the flanges 2 of the shoulder at positions corresponding to the bather's shoulders, and the shoulder rest nozzle 3 and the circulation pump 8 of the shoulder rest shower device 17 are used for shoulder rest. They are connected by a shower water supply pipe 18 so that the bath water is supplied to the shoulder pad nozzle 3 of the shoulder pad shower device 17. The operation of the bathtub 1 is performed by the remote controller 20, and the operation patterns can be selected, the flow rate can be adjusted, and the frequency of the jet flow change can be adjusted. The signal from the remote controller 20 is sent to the remote controller light receiving unit 21 and transmitted to the control unit 22 housed in the circulation pump 8.

The bath water sucked from the suction port 9 is supplied from the circulation pump 8 to the nozzle water supply pipes 13 and 14 via a flow rate control valve 23 which controls the circulation flow rate inside the pump unit.
The water is supplied to the shoulder shower water supply pipe 18. The nozzle water supply pipes 13 and 14 and the shoulder shower water supply pipe 18 are respectively provided with a back opening / closing valve 24, a foot opening / closing valve 25, and a shoulder opening / closing valve 26, which are electrically operated valves such as motor valves. The supply of can be switched. The bath water that has circulated through the nozzle water supply pipes 13 and 14 through the back opening / closing valve 24 and the foot opening / closing valve 25 is mixed with the air from the air pipe 16 at the injection nozzles 11 and 12.
A jet stream containing bubbles is jetted into the bathtub 1. The bath water circulated through the shoulder opening / closing valve 26 and the shoulder pad shower water supply pipe 18 is supplied to the shoulder pad shower device 17, and is sprayed from the shoulder pad nozzle 3 of the shoulder pad shower device 17. It The flow rate of the bath water circulated and supplied to the injection nozzles 11 and 12 and the shower device 17 for shoulder rest is circulated by controlling the flow rate control valve 23 that can control the flow rate by the valve opening degree using a stepping motor. The flow rate can be adjusted, and the strength and weakness of the jet flow jetted from the jet nozzles 11 and 12 and the shoulder pad nozzle 3 of the shoulder pad shower device 17 can be adjusted, and various jet streams can be obtained.

The shoulder opening / closing valve 26 is controlled by the control unit 22 so as to be closed when the circulation pump 8 is not operated. As shown in FIG. 1, the water level sensor S is installed in the shower water supply pipe 18 for the shoulder rest near the circulation pump 8.
Is provided to detect the presence or absence of water.
Then, when the water level sensor S detects that the water has run out, the control unit 22 controls the shoulder on-off valve 26 to be in the open state. Then, when the water in the bathtub 1 is drained, the water level sensor S detects that the water level is exhausted when the water in the bathtub 1 becomes empty, and the water level sensor S is turned on and off as shown in FIG. t time (about 10 seconds)
After that, the shoulder opening / closing valve 26 is switched from OFF to ON, the shoulder opening / closing valve 26 is opened, and the water in the shower water supply pipe 18 is drained. After that, when the water reaches the water level equal to or higher than the water level sensor S, the water level sensor S is turned from off to on, the shoulder on-off valve 26 is turned from on to off, and the shoulder on-off valve 26 is closed.
By doing this, the shower water pipe for shoulder 1
The residual water in 8 can be removed, and the jet of water from the shoulder pad nozzle 3 at the time of abnormal operation can be prevented.

[0010]

According to the present invention, as described above, the circulating pump is provided with a water level sensor that detects when the water in the bathtub is drained.
When the water level sensor detects that the bathtub has been drained, the on / off valve for the shoulder is controlled to open, so when the bathtub is drained and the bathtub becomes empty, the water level sensor detects it. This opens the shoulder on-off valve to drain the water from the shoulder shower water supply pipe, and when the water in the bathtub is drained, the shoulder pad shower water supply pipe can be drained as well. It is possible to prevent residual water in the pipe and prevent damage due to freezing of the pipe.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram of a main part of an embodiment of the present invention.

FIG. 2 is a perspective view showing the entire bathtub of the above.

FIG. 3 is a pipe diagram of the entire system of the above.

FIG. 4 is a time chart showing the operation of the water level sensor and the on-off valve for a shoulder of the above.

[Explanation of symbols]

 1 Bathtub 2 Flange 3 Nozzle for shoulder rest 8 Circulation pump 17 Shower device for shoulder rest 18 Shower water pipe for shoulder rest 26 Shoulder opening / closing valve S Water level sensor

Claims (1)

[Claims] 1. A shoulder pad shower device attached to a flange of a bathtub is provided with a shoulder pad nozzle for spraying shower water toward the shoulder of a bather, and a circulation pump for circulating the water in the bathtub and the shoulder pad nozzle. Is connected to the shoulder shower water supply pipe, and a shoulder opening / closing valve consisting of a motorized valve is provided in the shoulder shower water supply pipe, and the shoulder opening / closing valve is closed when the circulation pump is stopped. In the shower device for shoulder rests, a water level sensor that detects when the water in the bathtub is drained is installed in the circulation pump, and when the water level sensor detects that the water in the bathtub has been drained, the shoulder on-off valve is opened. A residual water removing device for a shower for a shoulder rest of a bathtub, which is characterized by comprising: