JPH07178139A - Residual water draining system for shoulder shower bathtub - Google Patents

Abstract

PURPOSE:To prevent a water piping from freezing by draining off a water feed pipe for shoulder shower when draining off a bathtub. CONSTITUTION:A flange 2 of a bathtub 1 is provided with a shoulder shower unit 3 having a nozzle 4, through which shower water is jetted towards the shoulder of a person taking a bath. A circulating water pump 5 for circulating water in the bathtub 1 is connected with the nozzle 4 via a feed pipe 6 for supplying shower water; the feed pipe 6 is provided with a switch valve 7 for shoulder shower, which is a motor-operated valve. When the circulating water pump 5 is turned off, the switch valve 7 is closed so that the water level in the bathtub 1 is detected according to the number of revolution of the circulating water pump 5 and the switch valve 7 is reopened when the bathtub 1 is found to have no water.

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, and more particularly to a shoulder device when the water in the bathtub is drained. 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, A 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 sprayed 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 shower water pipe for the shoulder rest between the shoulder rest nozzle and the shoulder on-off valve. There is a problem that the water inside the pipe freezes when the outside 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 pipe for shoulder rest when the water in the bathtub is drained, and to remove water in the pipe. (EN) It is possible 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 shower for a shoulder rest of a bath tub according to the present invention is installed on a shoulder of a bather in a shoulder shower device 3 attached to a flange 2 of a bath tub 1. A shoulder pad nozzle 4 for injecting shower water is provided, and a circulation pump 5 for circulating the water in the bathtub 1 and the shoulder pad nozzle 4 are connected by a shoulder pad shower water supply pipe 6 and a shoulder pad shower. In the shower device for the shoulder rest of the bathtub, in which the shoulder opening / closing valve 7 made of an electric valve is provided in the water supply pipe 6 and the shoulder opening / closing valve 7 is closed when the circulation pump 5 is stopped, Bathtub 1
The presence / absence of water in the inside of the bathtub 1 is detected, and the opening / closing valve 7 for the shoulder is controlled to open when it is detected that there is no water in the bathtub 1.

Further, after detecting that there is no water in the bath tub 1 and opening the shoulder on-off valve 7, the shoulder on-off valve 7 is controlled to be closed again after a lapse of a certain time. Is also preferable.

[0007]

According to the above construction, when the operation switch is pressed with the water in the bathtub 1 drained, the circulation pump 5 rotates,
When the number of rotations of the circulation pump 5 becomes equal to or higher than a predetermined rotation and it is detected that the bath 1 is empty, the shoulder opening / closing valve 7 can be opened to drain the water from the shoulder pad shower water supply pipe 6. When the shoulder opening / closing valve 7 is opened to drain the water from the shoulder pad shower water supply pipe 6 and the shoulder opening / closing valve 7 is closed after a lapse of a certain time, when the circulation pump 5 is driven, shower water is suddenly discharged from the shoulder pad nozzle 3. You can prevent it from blowing out.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a circulation pump 5 is arranged on the side of a bath 1, and a suction port 8 in the bath 1 and a circulation pump 5 are connected by a suction pipe 9 to circulate the circulation. The hot water in the bathtub 1 can be sucked by the pump 5. In the case of this embodiment, the circulation pump 5 is composed of a first circulation pump 5a and a second circulation pump 6. Further, on the inner wall surface of the bathtub 1, there are provided a back bubble nozzle 11 and a foot bubble nozzle 12 for injecting hot water mixed with bubbles into the bathtub 1. The bubble nozzle 11 and the first circulation pump of the circulation pump 5 are provided. 5a is connected by a nozzle water supply pipe 13, and the bubble nozzle 12 and the second circulation pump 5b of the circulation pump 5 are connected to the nozzle water supply pipe 14.
, So that hot water can be supplied to the bubble 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 bubble nozzles 11 and 12 are connected by an air pipe 16, whereby air can be supplied to the bubble nozzles 11 and 12. It is like this. On the flange 2 of the bath tub 1, a pair of shoulder rest shower devices 3 are arranged at positions corresponding to the bather's shoulders. The shoulder rest nozzle 4 of the shoulder rest shower device 3 and the first of the circulation pump 5 are arranged. The circulation pump 5 a is connected to the shoulder rest shower water supply pipe 6, and the bath water is supplied to the shoulder rest nozzle 4 of the shoulder rest shower device 3.
The nozzle water supply pipe 13 and the shoulder pad shower water supply pipe 6 are shared by the same circulation line on the first circulation pump 5a side, and an opening / closing valve A composed of an electromagnetic three-way valve is arranged at the branch portion. This on-off valve A serves both as opening and closing of the nozzle water supply pipe 14 and opening and closing of the shoulder pad shower water supply pipe 6, and serves as a shoulder on-off valve 7. The operation of the bathtub 1 is performed by the operation panel 20 and the remote controller 17.
It is possible to select each operation pattern, adjust the strength of the flow rate, and adjust the frequency of the jet flow change. Signals from the operation panel 20 and the remote controller 17 are transmitted to the control unit 18 to control the circulation pump 5 and valves. A signal from the remote controller 17 is sent to the remote controller light receiver 20b and transmitted to the controller 18. A drain plug switch 19 is adapted to open and close the drain plug on the floor of the bathtub 1.

FIG. 3 is a schematic diagram of the entire system. The bath water sucked from the suction port 8 is passed through the first circulation pump 5a and the second circulation pump 5b of the circulation pump 5 to the bubble nozzle 1
1, 12 and the shoulder rest shower device 3 are supplied so that they can be selected and used respectively. Nozzle water supply pipe 1
The bath water circulated through 3, 14 is the bubble nozzle 1
1, 12 is mixed with the air from the air pipe 16, and the bathtub 1
A jet stream containing bubbles is injected into the inside. The bath water circulated through the shoulder opening / closing valve 7 and the shoulder pad shower water supply pipe 6 is supplied to the shoulder pad shower device 3 and sprayed from the shoulder pad nozzle 4 of the shoulder pad shower device 3. It At this time, a jet flow ejected from the fluid element provided inside the shoulder pad nozzle 4 gives a massage effect to the shoulder of the bather. The flow rate of the bath water circulated and supplied to the bubble nozzles 11 and 12 and the shoulder pad shower device 3 can be adjusted by controlling the number of revolutions by the control unit 18, and the bubble nozzles 11 and 12 or the shoulder pad can be adjusted. The strength and weakness of the jet flow ejected from the shower device 3 can be adjusted, and various jet flows can be obtained.

The shoulder opening / closing valve 7 is controlled by the control unit 18 so that it is closed when the circulation pump 5 is not in operation. When the operation switch (drainage switch) 20a of the operation panel 16 is pressed, the circulation pump 5 rotates, and when the rotation speed is higher than a certain rotation speed, it is determined that the water in the bathtub 1 is empty. The time required for this is several seconds. After detecting that there is no water in the bathtub 1, the shoulder opening / closing valve 7
Is controlled by the control unit 18 to open. The control unit 18 controls the shoulder on-off valve 7 to be closed again after a certain period of time. By controlling by the control unit 18 in this way, when the operation switch 20a is pressed in a state where the water in the bathtub 1 is drained, the circulation pump 5 is rotated, and the number of rotations becomes a certain value or more so that the water in the bathtub 1 is kept. When it is detected that the water is empty, the shoulder on-off valve 7 is opened to drain the water in the shoulder shower water supply pipe 6, and when the outside air temperature drops to below zero, the water in the pipe freezes and a pipe crack occurs. That problem disappears.

[0011]

As described above, according to the present invention, the presence or absence of water in the bathtub is detected by the number of revolutions of the circulation pump, and when it is detected that there is no water in the bathtub, the opening / closing valve for the shoulder is controlled to open. Therefore, if the circulation pump is rotated with the water in the bath tub drained, it is detected that the rotation speed of the circulation pump has exceeded the specified number of revolutions and the inside of the bath is empty, and this opens the shoulder on-off valve. The water in the shower water pipe for the shoulder rest can be drained, and when the water in the bathtub is drained, the water in the shower water pipe for the shoulder rest can also be drained and the residual water in the shower water pipe for the shoulder rest can be removed. It is possible to prevent damage caused by freezing of the pipes, and after detecting that there is no water in the bathtub and opening the shoulder on-off valve, close the shoulder on-off valve again after a certain period of time. Since it is controlled, the shoulder on-off valve is opened and the shoulder rest shower is opened. When water in the water pipe has a certain time exits closed shoulder-off valve, in which from nozzle shoulder rest suddenly shower water is blown can be prevented when driving the circulating pump put bathwater in the bathtub.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire embodiment of the present invention.

FIG. 2 (a) is a front view of an operation panel of the above, and FIG. 2 (b) is a front view of a remote controller.

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

[Explanation of symbols]

 1 Bathtub 2 Flange 3 Shower device for shoulder rest 4 Nozzle for shoulder rest 5 Circulation pump 6 Shower water supply pipe for shoulder rest 7 Shoulder opening / closing valve

Claims (2)

[Claims] 1. A shoulder pad shower device attached to a flange of a bathtub is provided with a shoulder pad nozzle for injecting shower water toward the shoulder of a bather, and a circulation pump for circulating the water in the bathtub and the shoulder pad nozzle. Of the bathtub with which the shoulder on-off valve is closed when the circulation pump is stopped and the shoulder on-off shower water pipe is connected with the shoulder on-off shower water pipe. In the shoulder pad shower device, the presence or absence of water in the bathtub is detected by the number of revolutions of the circulation pump, and when the absence of water in the bathtub is detected, the shoulder on-off valve is opened. Residual water removal device for showers for shoulder rests of bathtubs. 2. A shoulder pad of a bathtub, which is so constructed that after detecting that there is no water in the bathtub, the shoulder on-off valve is opened and then the shoulder on-off valve is closed again after a certain period of time. Water removal device for showers.