JP2002364933A - Drainage equipment for bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide drainage equipment for a bathtub which can shorten drainage time of water in the bathtub and which doesn't require to improve capacity of a drainage trap of a bath room. SOLUTION: The drainage equipment for a bathtub has a reheating circuit 7 which can reheat by circulating water in the bathtub into a water heater 4 outside a bath room with a circulation pump 8. The circuit 7 is constituted so that at least a suction opening 3 of water in the bathtub is installed in a bottom 2a of the bathtub and that a drainage joint 11 is connected forkedly with the circuit 7 within the water heater 4 through a flow path selector valve 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub drainage device for draining bathtub water in a bathtub.

[0002]

2. Description of the Related Art Normally, bathtub water in a bathtub is drained by natural drainage through a bathroom trap or the like, but the flow rate fluctuates depending on the drainage gradient, trap capacity, and water level (water pressure). However, there is a problem that it takes time for drainage. In Japanese Patent Application Laid-Open No. 5-15464, a circulation fitting is mounted on the side wall surface of a bathtub, and a switching valve is provided on the discharge side of the circulation pump using a bathtub cleaning circuit and a reheating circuit connected to the circulation fitting. There is disclosed a configuration in which the leading end side is guided to a drain pipe in a bathroom to drain water. However, in such a drainage structure, the drainage flow rate is increased due to forced drainage by a pump. Needs to be more than the pump drainage plus the natural drainage.Therefore, there is a problem that repair work such as making the drain pipe from the bathroom thicker is necessary. Since it is attached to the wall, bathtub water at a position lower than the circulating bracket has to rely on natural drainage, and there is a problem that drainage takes time.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is possible to shorten the drain time of bathtub water, and it is not necessary to increase the capacity of a bathroom drain trap. The first gist of the present invention is to provide a bath tub drainage device, which is provided with a reheating circuit that can recirculate bath water by circulating bath water to a hot water supply device outside the bathroom having a circulation pump.
At least a suction port for bath water is provided on a bottom surface of the bath tub, and a drainage joint is connected to a reheating circuit in the hot water supply device via a flow path switching valve. A second point is that a drain switch is provided on a remote controller for hot water supply equipment, and when the drain switch is turned on, the flow path switching valve opens to the drain joint side, and the bathtub water is drained by operating the circulation pump. And drained to the outside of the hot water supply equipment. A third point is that a drain switch is provided in the hot water supply device, and when the drain switch is turned on, the flow path switching valve opens to the drain joint side, and the bath pump water passes through the drain joint by operating the circulation pump. It is configured to be drained out of the hot water supply equipment. A fourth gist is that a manual drainage port is separately provided in the bathtub, and when the detection means detects that the drainage port is opened, the flow path switching valve opens to the drainage joint side, and the circulation pump is opened. The configuration is such that the bathtub water is drained out of the hot water supply equipment through the drainage joint by operation. A fifth gist is that the drainage joint is formed of a bamboo shoot joint or the like to which a hose can be connected from the outside of the hot water supply device.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a bathtub drainage device. A bathtub 2 is installed in a bathroom 1, and a bottom surface 2 of the bathtub 2 is installed.
a is provided with a circulation fitting 3. Also, in the hot water supply device 4 installed outside the bathroom wall 1a,
A reheating circuit 7 is incorporated, and a circulation pump 8 and a heat exchanger 9 are disposed in the reheating circuit 7.
A suction pipe 5 and a return pipe 6 are connected to the suction pipe 5. By operating a circulation pump 8, bathtub water in the bathtub 2 is sucked into the suction pipe 5 through the circulation fitting 3, and a reheating circuit 7 is provided.
Is heated by the heat exchanger 9, and can be returned from the return pipe 6 to the bathtub 2 through the circulation fitting 3 and circulated.

[0005] In this embodiment, a reheating circuit 7 in the hot water supply device 4 is used.
A flow switching valve 10 is provided on the downstream side of the circulation pump 8 in the inside, a drain joint 11 is connected to the flow switching valve 10, and a drain pipe 12 is further connected to the drain joint 11. The flow path switching valve 10 is electrically connected to a control unit 13, and the control unit 13 is electrically connected to a remote controller 14. The remote controller 14 is installed in, for example, a kitchen.

The remote controller 14 has a configuration as shown in FIG. 2 and is provided with a drain switch 21. When the drain switch 21 is turned on in a kitchen or the like, the flow path switching valve 10 is turned on the drain joint 11 side. Is controlled to open to
The circulation pump 8 is actuated, and the bathtub water in the bathtub 2 flows through the circulation fitting 3, flows through the reheating circuit 7 from the flow path switching valve 10 to the drainage joint 11 side, and is separately formed outside from the drainage pipe 12. The bath water in the bath tub 2 is forcibly discharged by the circulation pump 8.
It can be drained in a short time. In this example, since the water is drained into the drain groove 15 formed near the hot water supply device 4, it is not necessary to increase the capacity of the drain trap in the bathroom, and it is not necessary to provide a drain port in the bathtub, and furthermore, In this case, the drain trap for the bathtub can be omitted, the number of members can be reduced, the cost can be reduced, and the appearance of the bathtub can be improved.

As shown in FIG. 3, it is also possible to provide an operation section 4a on the hot water supply apparatus 4 installed outdoors, and to install a drain switch 21 on the operation section 4a.
Thus, the drain switch 2 is connected to the outdoor hot water supply device 4 itself.
If 1, the drain switch 21 is turned on outdoors.
The bath water can then be used for watering the garden or for car washing. Note that, in this case, the drainage joint 11 may be formed of a bamboo shoot joint or the like, and the hose 22 may be configured to be connectable to the drainage joint 11 from outside.
Further, a hose hook 24 for hooking the hose 22 is provided.
Can be provided in the hot water supply apparatus 4. In FIG. 3, reference numeral 23 denotes a shower for watering provided at the tip of the hose 22.

As shown in FIG. 1, a manual drain port 16 which is manually opened and closed is formed in the bathtub 2 separately from the circulation fitting 3, and a trap 19 is provided on the floor F of the bathroom. It is also possible to connect the drain pipe 20, and in this case,
The manual drainage port 16 can be configured to be opened and closed by remote control via a cable 18 by operating an open / close button 17 provided on the flange 2b of the bathtub 2. By operating the button 17 to open the manual drain port 16, the bathtub water in the bathtub 2 can be poured into the trap 19 and drained by gravity, and when the open / close button 17 is opened, the flow path switching valve 10 drains. It can also be configured to open to the joint 11 side, control the circulation pump 8 to operate, and forcibly drain the water into the drainage groove 15. In such a case, natural drainage and forced drainage are performed simultaneously, Drainage can be completed in a very short time.

When the manual drain port 16 is formed of a rubber stopper or the like, when the manual drain port 16 is opened and drainage is started, the drain state is set to a flow switch provided in a bathtub or the like. Or a detection means such as a water level sensor, and by a signal from the detection means, the flow path switching valve 10 is opened to the drainage joint 11 side, and the circulation pump 8 is operated to perform a forced drainage. Can also.

Further, as shown in the enlarged view of FIG. 4, if a manual drainage port 25 is formed integrally with the circulation fitting 3 provided on the bottom surface 2a of the bathtub, the bottom surface 2a of the bathtub is separately provided. Therefore, it is not necessary to provide the manual drain port 16, and the appearance of the bathtub can be improved. That is, the suction port 3 communicating with the suction pipe 5 on the outer peripheral side is provided in the circulation fitting 3 of FIG.
a is formed, and a return port 3b communicating with the return pipe 6 is formed at the center.
The manual drain port 25 is further formed in a communicating manner below, a spring 17 and a check valve 26 are provided inside the manual drain port 25, and a flow switch 28 is further provided. When the manual drain port 25 is manually opened, the flow switch 28 detects drainage that falls naturally through the manual drain port 25, and the flow switch 2
The control unit 13 receives the detection signal from the flow path switching valve 1
0 can be opened to the drainage joint 11 side and the circulation pump 8 can be operated to forcibly drain water to the outside of the hot water supply device 4.

Although the circulation fitting 3 is exemplified as having a shape in which the suction port 3a and the return port 3b are integrated, a structure in which the suction port 3a and the return port 3b are separately provided may be employed. , The suction port 3a is provided in the bathtub bottom surface 2a,
The return port 3b can be provided on the side wall surface of the bathtub, and if the suction port 3a is provided on the bottom surface 2a of the bathtub, bathtub water can be reliably drained from the suction port 3a to the end.

[0012]

According to the bathtub drainage device of the present invention, at least the suction port of the bathtub water is provided at the bottom of the bathtub in the reheating circuit which can recirculate the bathtub water to the hot water supply equipment outside the bathroom having the circulation pump and reheat the bathtub. In addition, since the drainage joint is connected to the reheating circuit in the hot water supply equipment via a flow path switching valve, the flow path switching valve is opened to the drainage joint side,
By operating the circulation pump, the bathtub water can be forcibly drained from the drainage fitting provided in the hot water supply equipment, and a constant amount can be drained regardless of the water level. Has an effect that can be. In addition, there is no need to provide a pump for drainage, the space in the bathroom can be widely used, and it is not necessary to increase the capacity of the drainage trap in the bathroom. Can also. Further, since the suction port is provided on the bottom surface of the bathtub, the bathtub water can be drained well to the end. In addition, since there is no need to provide a drain plug in the bathtub, the appearance of the bathtub is improved, and the number of members is reduced, so that there is a secondary effect that the cost can be reduced.

A drain switch is provided on the remote controller for the hot water supply equipment, and when the drain switch is turned on, the flow path switching valve opens to the drain joint side, and the bath pump water passes through the drain joint through the drain joint by the operation of the circulation pump. By turning on the remote control's drain switch in the kitchen or the like, the bath water can be forcibly drained, without having to go to the bathroom, and the drain operation becomes easy. . Further, it is possible to notify the completion state of the drainage of the bathtub water via the remote controller.

Further, a drain switch is provided in the hot water supply device, and when the drain switch is turned on, the flow path switching valve opens to the drain joint side, and the bath pump water is drained out of the hot water supply device through the drain joint by the operation of the circulation pump. By configuring so that
When the drain switch is turned on outdoors, the bathtub water can be drained from the drainage joint of the hot water supply device, and the bathtub water can be favorably used for watering the garden or for car washing. In addition, there is no need to install a faucet outdoors, and there is an effect that water and hot water can be favorably used outdoors.

Further, a manual drainage port is separately provided in the bathtub, and when the detecting means detects that the drainage port is opened, the flow path switching valve opens to the drainage joint side, and the bathtub water is drained by operating the circulation pump. By having been configured to be drained out of the hot water supply equipment through the joint, natural drainage and forced drainage from the manual drainage port are simultaneously performed, and drainage of bathtub water can be completed in a shorter time. . Further, even if the drainage device breaks down, it is possible to drain the natural drainage from the manual drainage port.

In addition, since the drainage joint is constituted by a bamboo shoot coupling to which a hose can be connected from the outside of the hot water supply equipment, the hose can be connected to the bamboo shoot coupling, so that watering in the garden or car washing can be performed satisfactorily. Has an effect.

[Brief description of the drawings]

FIG. 1 is a schematic layout diagram of a bathtub drainage device.

FIG. 2 is a configuration diagram of a remote controller.

FIG. 3 is a perspective view illustrating an example of a hot water supply apparatus.

FIG. 4 is an enlarged cross-sectional configuration diagram when a circulation fitting and a drain port are integrated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathroom 1a Bathroom wall 2 Bath tub 2a Bottom surface 2b Flange 3 Circulation fitting 3a Suction port 3b Return port 4 Hot water supply equipment 5 Suction pipe 6 Return pipe 7 Reheating circuit 8 Circulation pump 9 Heat exchanger 10 Flow switching valve 11 Drainage joint 12 Drain pipe 14 Remote control 15 Drainage groove 16 Manual drainage port 17 Open / close button 19 Trap 20 Drainage pipe 21 Drainage switch 22 Hose 24 Hose hook 25 Manual drainage port 26 Check valve 28 Flow switch

Claims (5)

[Claims] 1. A reheating circuit which can recirculate bath water by circulating bath water to a hot water supply device outside a bathroom having a circulation pump, wherein at least a suction port for bath water is provided on a bottom surface of the bath tub and inside the hot water supply device. A drainage device for a bathtub, wherein a drainage joint is connected to the reheating circuit through a flow path switching valve. 2. A drain switch is provided on a remote controller for hot water supply equipment, and when the drain switch is turned on, the flow path switching valve opens to a drain joint side, and bathtub water passes through the drain joint by operating the circulation pump. The bathtub drainage device according to claim 1, wherein the bathtub drainage device is configured to be drained out of the hot water supply device. 3. A drain switch is provided in the hot water supply device, and when the drain switch is turned on, the flow path switching valve opens to a drain joint side, and bathtub water passes through the drain joint by operating the circulation pump. The bathtub drainage device according to claim 1, wherein the bathtub drainage device is configured to be drained out. 4. A manual drainage port is separately provided in the bathtub, and when the detection means detects that the drainage port is opened, the flow path switching valve opens to the drainage joint side, and the circulation pump operates. The bathtub drainage device according to claim 1, wherein the bathtub water is configured to be drained outside the hot water supply device through a drainage joint. 5. The bathtub according to claim 1, wherein the drainage joint is a bamboo shoot joint to which a hose can be connected from the outside of the hot water supply equipment. Drainage equipment.