JPS6224204Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a bathtub connection device used in a forced circulation type bathtub.The purpose of this invention is to easily connect the bathtub and the bathtub, and To provide a bathtub connecting device which divides a room to perform efficient boiling and also allows easy cleaning of hot water scale attached to the surface of a filter in a water absorption room.

The present invention will be described in detail below based on an embodiment shown in the accompanying drawings.

1 is the main body of a forced circulation bathtub having a heat exchanger 2 and a gas burner 3, and a solenoid valve 5 is interposed in a gas path 4 leading to the gas burner 3. Also subject 1
A circulating water switch 7, a temperature detector 8, and a circulation pump 9 are interposed from upstream in the circulation pipe 6 on the suction side that sends low-temperature bath water to the heat exchanger 2. If movement is detected, solenoid valve 5
is opened to cause the gas burner 3 to burn, and when the temperature detector 8 detects the set temperature, the combustion of the gas burner 3 is stopped. 10 is heat exchanger 2
Bathtub connection device 11 (described later)
This is a circulation return pipe on the discharge side that sends the water to the bathtub 12 via the pipe.

Next, the structure of the bathtub connection device 11 of the present invention will be explained. The bathtub connection device 11 has a discharge passage 13 in the center.
has a double cylindrical connecting device 15 with a suction channel 14 formed around the outer periphery of the discharge path 13, and a connecting tube 16 communicating with the discharge path 13 at the end of the connecting device 15 outside the bathtub 12. A connecting cylinder 17 communicating with the suction channel 14 is projected, and each connecting cylinder 16, 17 is connected to the circulation outgoing pipe 6 and the circulation return pipe 10, respectively. The tip of the inner cylinder 19 forming the discharge passage 13 is connected to the open end 18 of the suction passage 14 in the bathtub 12.
A screw 20 is threaded on the outer peripheral wall of the connector 15, and a gasket 23 fitted into an opening bored at an appropriate position of the bathtub 12 is clamped onto the screw 20. Natsuto 21 and Natsuto 2
2 are screwed together to fix the connector 15 to the bathtub 12. Note that instead of using the nut 21, a flange portion may be formed on the outer periphery of the connecting tool 15. A plurality of cap locking holes 24 having stepped portions 24a inside are provided in the circumferential direction on the end surface of the nut 22 opposite to the side wall of the bathtub. Reference numeral 25 denotes a bottomed cylindrical hot water stopper cap, and the outer peripheral wall of the hot water stopper cap 25 has a discharge port 26 at the lower front and a plurality of water intake ports 27 around the rear, and the rear open end 28 has the above-mentioned water inlets. A plurality of locking legs 29 are provided in a protruding manner, each having a locking protrusion 29a at the tip that is fitted into the locking hole 24. Reference numeral 30 designates a bottomed cylindrical auxiliary cap that is inserted into the hot water stopper cap 25. A through hole 31 into which the inner cylinder 19 is inserted is provided at the center of the front bottom, and the water inlet 27 and the water intake port 27 are formed on the outer peripheral wall. A plurality of through holes 32 with filters are opened at corresponding positions, and a flange 33 is formed on the outer periphery of the rear opening end to be sandwiched between the opening end 28 of the hot water stopper cap and the nut 24. The flange 33 is provided with a notch 34 through which the locking leg 29 passes, and after the auxiliary cap 30 is inserted into the hot water stopper cap 25 until the flange 33 abuts the open end 28 of the hot water stopper cap 25. , locking leg 2
9 into the locking hole 24 of the nut 22 and fitting the locking protrusion 29a into the stepped portion 24a, the bottom surface of the auxiliary cap 30 becomes a partition wall, and the discharge chamber 35 and water absorption chamber 36 are separated. is formed.

Since the bathtub connection device of the present invention is constructed as described above, when discharging the bathtub water, firstly, the circulation pump 9 is energized. 27, passes through a through hole 32 with a filter and enters a water absorption chamber 36.
The bathtub water is sent to the heat exchanger 2 from the connection tube 17 via the circulation outgoing pipe 6 via the suction channel 14 as shown by the broken line arrow, and the bathtub water that has passed through the heat exchanger 2 is sent from the circulation return pipe 10 to the solid line arrow. As shown, the water reaches the discharge chamber 35 through the connection tube 16 and the discharge passage 13, and is returned into the bathtub 12 through the discharge port 27 opened in the front lower wall of the hot water stopper cap 25. When the circulation is performed in this manner, the water flow switch 7 detects this circulation and opens the electromagnetic valve 5 to combust the gas burner 3 to forcefully circulate and heat the bathtub water. When the bath water reaches an appropriate temperature, the combustion of the gas burner 3 is stopped based on the detection by the temperature detector 8, and the circulation pump 9 also stops operating, thereby stopping the reheating.

As described above, since the bathtub connection device of the present invention has the configuration as described in the embodiment, only one opening is provided in the bathtub to connect the main body 1 of the forced circulation type bathtub and the bathtub 12. Since there is no need to separately install piping on the suction side and piping on the discharge side, the connection work can be performed extremely easily. Furthermore, by inserting the auxiliary cap 30 into the hot water stopper cap 25 and then removably fitting the hot water stopper cap 25 into the nut 22, a discharge chamber 35 and a water suction chamber 36 are simultaneously formed. The number of components is reduced, and since the outlet 26 of the hot water stopper cap 25 faces downward, the bathtub water can be efficiently purged. Furthermore, since the auxiliary cap 30 with a filter is inserted into the hot water stopper cap 25 in advance, when cleaning the scale adhering to the through hole 32, the connecting device 15 can be left attached to the bathtub 12. It is only necessary to remove the hot water stopper cap 25 from the nut 22 from inside the bathtub, making cleaning extremely easy.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is a sectional view of the main part, and FIG. 3 is a partially cut away exploded perspective view of the main part. 11... Bathtub connection device, 12... Bathtub, 13...
...Discharge channel, 14...Suction channel, 15...Connection tool, 1
6, 17... Connection pipe, 18... Suction channel opening end, 1
9... Inner cylinder, 20... Screw, 21, 22... Nut, 23... Packing, 24... Cap locking hole, 25... Hot water stopper cap, 26... Discharge port,
27...Water inlet, 28...Rear opening end, 29...
Locking leg, 29a... Locking protrusion, 30... Auxiliary cap, 31... Through hole, 32... Through hole, 33...
Flange, 34...notch.

Claims (1)

[Scope of utility model registration request] A discharge passage 13 is provided in the center, and a suction passage 1 is provided around the outside.
4, and the discharge passage 13 is connected to the suction passage 14 in the bathtub.
a connecting tool 15 that is made to protrude more than the connecting tool 15;
Insert the threaded part 20 threaded into the outer peripheral wall of the bathtub into the opening of the bathtub, and screw the nut 22 from inside the bathtub to connect the connecting tool 1.
5 is fixed to the bathtub, while an auxiliary cap 30 having a through hole 32 with a filter is attached, which has a downward discharge port 26 in front of the outer peripheral wall and a water intake port 27 in the rear, and has a plurality of locks at the rear opening end. The leg 29 is inserted into the inside of the hot water stopper cap 25 provided with a protrusion, and the locking protrusion 29a provided at the tip of the locking leg 29 is fitted into the stepped portion 24a of the locking hole 24 formed in the nut 22. By doing so, the auxiliary cap 30 is used as a partition wall, and the outside is a discharge chamber 35 and the inside is a water absorption chamber 36.
A bathtub connection device characterized in that a partition is formed in the bathtub.