JPH05200083A - Piping structure for jet return flow to bathtub - Google Patents

Abstract

PURPOSE:To maintain a proper jet from a shoulder massaging nozzle a without changing the drive control mode of a circulating pump. CONSTITUTION:This jet return piping structure is such that a hot bath in a bathtub is sucked through a suction port 9 with a circulating pump 8, and returned to the bathtub in the form of a jet from a shoulder massaging nozzle 3, and back and foot massaging nozzles 11 and 12. Also, a bypass line B is provided between a branch hot water feed pipe (a) to the nozzle 3 and a suction pipe 10 for sucking a hot bath through the suction port 9. The bypass line B is provided with a nonreturn valve V for allowing a return flow from the branch pipe (a) to the suction pipe 10, but preventing a flow from the pipe 10 to the branch pipe (a).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jet return flow piping structure to a bathtub, and more particularly to a technique for improving the injection from a shoulder rest nozzle without changing the control mode of drive in a circulation pump. It is related to.

[0002]

2. Description of the Related Art Conventionally, there is a shower device for a shoulder rest equipped with a shoulder rest nozzle attached to a flange of a bathtub, which is described in Japanese Utility Model Laid-Open No. 26256/1990. In the one described in this publication, an injection for a foot or a back that injects air bubbles mixed into a bathtub, and a shoulder pad that is provided on a flange of the bathtub and injects with relatively low injection force. The injection from the nozzle is performed by controlling the rotation speed of the circulation pump.

[0003]

However, in order to change and adjust the injection force by controlling the number of revolutions of the circulation pump in this way, there are two types of injection, that is, injection with bubbles and injection from the shower device for shoulder rest. Control program is required. The present invention has been made in view of such a problem, and an object thereof is to perform injection from a shoulder pad nozzle with a relatively weak injection force without changing a control mode of drive in a circulation pump. There is an attempt to provide a jet return flow piping structure to a bathtub that can be used in the above.

[0004]

According to the present invention, the bath water in the bathtub 1 is sucked from the suction port 9 by the circulation pump 8 and jetted from the shoulder pad nozzle 3 and the jet nozzles 11 for the back and feet. It is a jet return flow pipe structure for returning to the bathtub, and the shoulder pad nozzle 3
A bypass B is provided between the branch hot water supply pipe a and the suction pipe 10 for sucking the hot water groove from the suction port 9. In the bypass B, a return flow is allowed from the branch hot water supply pipe a to the suction pipe 10.
It is characterized in that a check valve V is provided to prevent the inflow to the branch hot water supply pipe a.

[0005]

In this way, the branch hot water supply pipe a to the shoulder pad nozzle 3
And a suction pipe 10 for sucking the molten metal from the suction port 9, a bypass B is provided, and in the bypass B, a return flow from the branch hot water supply pipe a to the suction pipe 10 is allowed.
The check valve V in the bypass B provided between the branch hot water supply pipe a to the shoulder contact nozzle 3 and the suction pipe 10 for sucking hot water from the suction port 9 by providing the check valve V for preventing the inflow to the shoulder contact nozzle 3. At this point, a certain amount of hot water is returned from the branch hot water supply pipe a to the suction pipe 10, and even if the shoulder contact nozzle 3 is used for injection, the shoulder contact pressure is not controlled without reducing the output of the circulation pump 8. Shoulder rest shower is performed well from the nozzle 3, and in such a case, it can be performed by setting the pipeline, and the form of controlling the circulation pump 8 need not be changed, and the control system is simplified. is there.

[0006]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 2 is a perspective view of the entire bath 1, and FIG. 1 is a pipeline diagram showing the entire 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. 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. The jet nozzles 11 and 12 and the circulation pump 8 are provided.
Are connected by nozzle water supply pipes 13 and 14, so that hot water can be supplied to the injection nozzles 11 and 12.
The flange 2 of the bathtub 1 is provided with an air intake port 15,
The air inlet 15 and the injection nozzles 11 and 12 are connected to the air pipe 1
6 are connected to each other, whereby the injection nozzles 11 and 12 are connected.
Air can be supplied to. On the flange 2 of the bath tub 1, a pair of shoulder rest shower devices 17 are arranged at positions corresponding to the shoulders of the bather. The bath water is supplied to the shoulder shower device 17. Operation of bathtub 1 is remote control 2
The operation is performed at 0, and it is possible to select each operation pattern, adjust the strength of the flow rate, adjust the frequency of the jet flow change, and the like. A signal from the remote controller 20 is sent to the remote controller light receiving section and transmitted to the control section 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 water supply pipes 13 and 14 and the shoulder pad shower water supply pipe 18 via a flow rate control valve 23 for controlling the circulation flow rate inside the pump unit. It has become so.
The water supply pipes 13, 14 and the shoulder shower water supply pipe 18 are respectively provided with a back flow path switching valve 24 such as a motor valve, a foot flow path switching valve 25, and a shoulder flow path switching valve 26. The supply of hot water can be switched. The water supply pipe 13 is passed through the back flow path switching valve 24 and the foot flow path switching valve 25.
The bath water circulated through 14 is the injection nozzles 11, 1
At 2, the air is mixed with the air from the air pipe 16, and a jet stream containing bubbles is jetted into the bath 1. The bath water that has circulated through the shoulder channel switching valve 24 and the shoulder pad shower water supply pipe 18 is supplied to the shoulder pad shower device 17, and jetted from the shoulder pad nozzle 3 of the shoulder pad shower device 17. To be done.
The flow rate of the bath water circulated and supplied to the injection nozzles 11 and 12 and the shower device 17 for shoulder rests is controlled by the control unit 22.
It is possible to adjust the circulation flow rate by controlling 3, and the injection nozzles 11 and 12, the shower device 17 for shoulder rests.
Adjusting the strength of the jet from the shoulder pad nozzle 3
Various variations of jet flow can be obtained.

The branch hot water supply pipe a to the shoulder rest nozzle 3
A bypass B is provided between the shoulder shower water supply pipe 18 and the suction pipe 10 for sucking the molten metal from the suction port 9.
In the bypass B, there is provided a check valve V that allows a certain amount of return flow from the shoulder shower water supply pipe 18 to the suction pipe 10 and blocks the inflow from the suction pipe 10 to the branch hot water supply pipe a. Thus, the shower hot water supply pipe 1 for shoulder application to the shoulder application nozzle 3
8 and a suction pipe 10 for sucking the molten metal from the suction port 9, a bypass B is provided, and in the bypass B, the shoulder shower shower hot water supply pipe 18 is allowed to return to the suction pipe 10.
By providing the check valve V for blocking the inflow from the shoulder rest shower hot water supply pipe 18, the shoulder rest shower hot water supply pipe 18 to the shoulder rest nozzle 3 and the suction pipe 10 sucking hot water from the suction port 9 are provided. With the check valve V in the bypass B provided between
Although a certain amount of hot water is returned from the shoulder pad shower hot water supply pipe 18 to the suction pipe 10, and the shoulder pad nozzle 3 injects water, the shoulder pad is not controlled without lowering the output of the circulation pump 8. Shoulder rest shower is performed satisfactorily from the nozzle 3, and in such a case, it can be performed by setting the pipeline, and it is not necessary to change the form of controlling the circulation pump 8, and the control system is simplified.

[0009]

As described above, according to the present invention, a bypass is provided between the branch hot water supply pipe to the shoulder rest nozzle and the suction pipe for sucking the hot water groove from the suction port, and the bypass hot water supply pipe is connected to the suction pipe in the bypass. Since a check valve is provided to allow the return flow and prevent the inflow from the intake pipe to the branch hot water supply pipe, the bypass provided between the branch hot water supply pipe to the shoulder rest nozzle and the intake pipe to draw hot water from the intake port With the check valve, a certain amount of hot water is returned from the branch hot water supply pipe to the suction pipe, and although the injection from the shoulder rest nozzle is performed, the shoulder rest nozzle is controlled without reducing the output of the circulation pump. From this, there is an advantage that the shoulder rest shower can be satisfactorily performed, and in such a case, it can be performed by setting the pipeline, and the mode for controlling the circulation pump does not have to be changed, and the control system can be simplified.

[Brief description of drawings]

FIG. 1 is a piping diagram of an embodiment of the present invention.

FIG. 2 is an overall perspective view of the above.

[Explanation of symbols]

 1 Bathtub 3 Shoulder contact nozzle 8 Circulation pump 9 Suction port 10 Suction pipe 11 Injection nozzle a Branch hot water supply pipe B Bypass V Check valve

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[Procedure amendment]

[Submission date] April 20, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

According to the present invention, the bath water in the bathtub 1 is sucked from the suction port 9 by the circulation pump 8 and jetted and returned from the shoulder rest nozzle 3 and the jet nozzles 11 for the back and feet. Which is a structure for jet return flow to the bathtub, which is a branch hot water supply pipe a to the shoulder contact nozzle 3 and a suction pipe 1 for sucking the molten metal groove from the suction port 9.
And a check valve V for allowing the return flow from the branch hot water supply pipe a to the suction pipe 10 and preventing the inflow from the suction pipe 10 to the branch hot water supply pipe a. It is characterized by. ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 20, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (1)

[Claims] 1. A jet return piping structure for injecting and returning the bath water of a bathtub from a suction port by a circulation pump and returning from a shoulder pad nozzle and a back or foot jet nozzle to a bathtub, A bypass is provided between the branch hot water supply pipe to the shoulder pad nozzle and the suction pipe that sucks the hot water groove from the suction port.In the bypass, the branch hot water supply pipe is allowed to return to the suction pipe, and the suction pipe to the branch hot water supply pipe An injection and return piping structure to a bathtub, which is provided with a check valve for blocking inflow.