JPH0720482B2 - Bathtub jet generator - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to the structure of a jet generating device for a bathtub, which sucks water into the bathtub with a pump and ejects a jet from the jet outlet of the bathtub.

[Background Art] Conventionally, a bathtub 1 has a plurality of jet nozzles as shown in FIG.
2a, 2b are provided, and an intake port 3 provided at the bottom of the bathtub 1 and the bathtub 1
The bathtub 1 was connected to a pump 4 placed outside via a suction line 5, and a manual valve 7' attached to the flange 6 of the bathtub 1 was connected to the pump 4 via a discharge line 8. The manual valve 7' was connected to the above-mentioned multiple jet outlets 2a, 2b via separate supply lines 9a, 9b. 11 is an air supply line that supplies air from an air suction port 12 to each of the jet outlets 2. The pump 4 was driven to suck in water from the bathtub 1, and the water discharged from the pump 4 was sent to the jet outlets 2a, 2b via the discharge line 8, the manual valve 7', and the supply lines 9a, 9b, where it entrained air from the air supply line 11 and was then sprayed out from the jet outlets 2a, 2b. The operating part 10' of the manual valve 7' was located on the top surface of the flange 6,
By operating the operating part 10', the manual valve 7' can be operated to alternately spray jets from the multiple jet outlets 2a, 2b, or simultaneously spray jets from the multiple jet outlets 2a, 2b. In this conventional example, the manual valve 7' is attached directly below the flange 6, so when the water in the bathtub 1 is drained, all the water in the suction pipe 5, discharge pipe 8, and supply pipes 9a, 9b is drained, eliminating any remaining water.

However, if an electric valve 7" is used instead of a manual valve 7' to automate the operation, the electric valve 7" is moved and attached near the pump 4 for maintenance and repair as shown in FIG. 5, and the position of the electric valve 7" is located far below the flange 6. This electric valve 7" rotates the valve body with an electric motor to connect the discharge line 8 to a plurality of supply lines 9a, 9b, 9c, 9d, 9e, 9f, 9g, 9h, 9h, 9i, 9j, 9j, 9h, 9h, 9i, 9j, 9h ...
Therefore, the bathtub 1 is connected to the bathtub b alternately.
When the water in the supply pipe is drained, the water does not drain out from the supply pipe that is closed by the valve body of the motor-operated valve 7", and residual water occurs. In other words, residual water occurs in part A or A' in Figure 5. This residual water is unsanitary.

[Objective of the Invention] The present invention has been made in consideration of the above-mentioned points, and the objective of the present invention is to provide a jet generator for a bathtub that is hygienic, even if it is operated by an electric valve installed near the pump, and when the motor of the electric valve stops, the valve body stops in a state where the discharge pipe and multiple supply pipes are connected, and when the water in the bathtub is drained, all the water is drained.

[Disclosure of the Invention] The jet generating device for a bathtub of the present invention is provided with a plurality of jet outlets 2a, 2b in a bathtub 1, a pump 4 arranged outside the bathtub 1 is connected to the inside of the bathtub 1 through a suction line 5, a motor-operated valve 7 arranged near the pump 4 is connected to the pump 4 through a discharge line 8, and the motor-operated valve 7 is connected to the plurality of jet outlets 2a, 2b through separate supply lines 9a, 9b, and the motor-operated valve 7 alternately connects each of the supply lines 9a, 9b to the discharge line 8 by rotating a valve body 14 driven by an electric motor 13, or connects the plurality of supply lines 9a, 9b
The motor of the electric valve 7 is
When the supply pipes 9a and 9b are shut down, the discharge pipe 8 is disconnected from the supply pipes 9a and 9b.
This valve is characterized by the fact that it is controlled so that the valve element 14 is positioned and stopped in a state where multiple supply lines 9a, 9b are simultaneously in communication with the discharge line 8 when the motor 13 of the motor-operated valve 7 is stopped, and the drawbacks of the prior art are solved by the above-mentioned configuration. In other words, by controlling the valve element 14 to be positioned and stopped in a state where multiple supply lines 9a, 9b are simultaneously in communication with the discharge line 8 when the operation of the motor-operated valve 7 is stopped, the valve element 14 stops in a position where the discharge line 8 is in communication with the multiple supply lines 9a, 9b, and when the water in the bathtub 1 is drained, even if the position of the motor-operated valve 7 is low, the water in the supply lines 9a, 9b also flows into the discharge line 8 and the pump 4.
The water is then drained through the intake pipe 5, so that no residual water is left behind and it is hygienic.

The present invention will be described in detail below with reference to examples.

Fig. 1 shows the overall structure of one embodiment of the present invention, but the structure other than the motor-operated valve 7 is the same as that of the conventional example shown in Fig. 4, so the explanation will be omitted. As shown in Fig. 2, the motor-operated valve 7 has a valve chamber 15 which communicates a discharge pipe 8 with a plurality of supply pipes 9a and 9b.
The valve body 14 is rotated by the electric motor 13.
As shown in FIG. 3(a), the supply line 9a side is closed by the valve body 14 to communicate with the discharge line 8 and the supply line 9b, as shown in FIG. 3(b), the supply line 9b side is closed by the valve body 14 to communicate with the discharge line 8 and the supply line 9a, as shown in FIG. 3(c),
As shown in Fig. 3(c), the valve element 14 is positioned in the middle to simultaneously connect the discharge line 8 to both supply lines 9a and 9b. The motor 13 of this motor-operated valve 7 is controlled via a control circuit 16 by operating the operating unit 10, and when stopping the motor 13, the control circuit 16 stops the motor 13 when it simultaneously detects a signal to stop the operating unit 10 and a signal from a sensor 17 that detects that the valve element 14 is in the position shown in Fig. 3(c). In other words, when the operation of the motor-operated valve 7 is stopped, the valve element 14
is positioned in the middle and stops in a state where the discharge pipe line 8 communicates with both the supply pipe lines 9a and 9b.

With the device of the present invention configured as described above, when pump 4 is driven, water in bathtub 1 is drawn into pump 4 through inlet 3 and suction line 5. The water discharged from pump 4 is then ejected from jet outlets 2a and 2b via discharge line 8, motor-operated valve 7, and supply lines 9a and 9b. By operating motor-operated valve 7, jets are ejected alternately from jet outlet 2a and jet outlet 2b, or simultaneously from jet outlets 2a and 2b. When motor-operated valve 7 is deactivated, valve element 14 is positioned in the intermediate position, establishing communication between discharge line 8 and both supply lines 9a and 9b. When water is drained from bathtub 1, the water in supply lines 9a and 9b also drains via discharge line 8, pump 4, and suction line 5.

[Effects of the Invention] When the motor of the motor-operated valve as described above is stopped, the present invention controls the valve body to stop at a position where multiple supply lines are simultaneously connected to the discharge line. Therefore, when the operation of the motor-operated valve is stopped, the valve body stops at a position where the discharge line is connected to multiple supply lines. Even if the motor-operated valve is positioned low, when water is drained from the bathtub, the water in the supply line is also drained through the discharge line, pump, and suction line, leaving no residual water anywhere and ensuring hygiene.

[Brief explanation of the drawings]

FIG. 1 is a schematic diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram of the motor-operated valve of the same, FIGS. 3(a), (b), and (c) are explanatory diagrams of the operation of the motor-operated valve of the same, and FIGS. 4 and 5 are schematic diagrams of a conventional example, in which 1 is a bathtub, 2a and 2b are jet nozzles, 4 is a pump,
Reference numeral 5 denotes a suction line, 7 denotes an electric valve, 8 denotes a discharge line, 9a and 9b denote supply lines, 13 denotes an electric motor, and 14 denotes a valve body.

Claims (1)

[Claims] Claim 1: A bathtub is provided with a plurality of jet outlets, and a pump located outside the bathtub is connected to the inside of the bathtub via a suction line.
A jet generating device for a bathtub, characterized in that an electric valve arranged near the pump is connected to the pump through a discharge line, and the electric valve is connected to each of the plurality of jet outlets through separate supply lines, and the electric valve is structured so that the rotation of a valve body by an electric motor alternately connects each supply line to the discharge line or simultaneously connects to multiple supply lines, and when the motor of the electric valve is stopped, the valve body is controlled to stop in a position where multiple supply lines are simultaneously connected to the discharge line.