JP3035826U - Bathtub forced circulation mouth fitting - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a bathtub hot water circulation port fitting that does not mistakenly connect a hot water supply pipe and a hot water return pipe when connecting the hot water supply pipe and the hot water return pipe. SOLUTION: A net cover 10 having a hole portion 14 and a first blow-out cylinder port 23 with a check valve 22 that opens in substantially opposite directions.
Also, the flow dividing pipe 20 is provided with a second blow-out pipe port 26 with a check valve 22 that opens in a direction substantially opposite to the inner pipe 25 that communicates with the first suction pipe port 24 and an outer pipe 28 that communicates with the second suction pipe port 27.
A male screw cylinder 30 and a circulation port body 40 provided with an inlet / outlet 41 and an inlet / outlet 43, and connecting the inlet / outlet 41 to the first outlet cylinder 23 and the first inlet cylinder 24 via the inner cylinder 25,
The inlet / outlet 43 is connected to the second outlet cylinder 26 and the second suction cylinder 27 via the male screw cylinder 30 and the outer cylinder 28, and the net cover 10 is connected.
The hole portion 14 is made to face the first blow-out tube mouth 23 and the second blow-out tube mouth 26.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a bathtub hot water circulation port fitting that is attached to a bathtub wall when forcedly circulating bathtub hot water between a bathtub and a circulation heating pot.

[0002]

[Prior art]

 The bathtub hot water is conventionally supplied from the circulating heating pot to the inside of the bathtub through the hot water supply pipe, which is attached to the bathtub through the hot water supply pipe. As a return hot water, the circulation process of the bath hot water is repeated from the return hot water outlet of the bath water hot water circulation port fitting through the return hot water pipe to the circulating heating pot and heating again. However, in the conventional bathtub hot water circulation port fitting, the hot water outlet heated by the circulation heating pot flows out into the bathtub so as to face the side surface of the net cover, and cold water that has been cold in the bathtub flows in. Since the return hot water outlet was installed so as to face the front of the mesh cover, the two pipes (hot water supply pipe and return hot water pipe) that connect the circulation heating pot and the bath water circulation port metal fitting may be mistaken. If connected, there was a danger that hot water would leak from the entire surface of the net cover into the bathtub. Furthermore, since the hot water supply port and the return hot water port were covered together with a net cover, if dust adheres to the wire net strainer of the net cover, the hot water in the net cover will not easily flow out into the bathtub. It was difficult for cold water to flow into the net cover. Therefore, the hot water is immediately returned to the circulation heating pot without circulating in the bath tank, and the temperature of the hot water rises, and there is a danger that combustion of the boiler will stop. In cold winter regions, hot water in the bathtub often flows back into the circulating heating pot where heating is temporarily stopped, and the hot water in the bathtub is often cooled.

[0003]

[Problems to be solved by the device]

 The present invention provides a bathtub hot water circulation port fitting that does not mistakenly connect the hot water supply pipe and the return hot water pipe when connecting the hot water supply pipe and the return hot water pipe.

Further, the present invention provides a bathtub hot water circulation port fitting in which the blowout mouth can always be arranged downward without attaching the wire mesh strainer to the hot water supply outlet that does not need to be attached with a wire mesh strainer. is there. Further, the present invention provides a bathtub water circulation port fitting capable of preventing the hot water in the bathtub from flowing back to the circulating heating pot in which the temporary heating is stopped and cooling in winter.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a net cover 10 having a wire mesh strainer 13 on a front surface 11 and a side surface 12 and a hole 14 on a side surface 12, and a blind plate-shaped front plate, as shown in the figure. An inner cylinder 25 communicating with the first blow-out cylinder mouth 23 and a first suction cylinder mouth 24 with a check valve 22 that are opened in substantially opposite directions along the back surface of 21 and the back surface of the front plate 21 with each other. A flow dividing cylinder 20 provided with an outer cylinder 28 which communicates with a second blow-out cylinder mouth 26 and a second suction cylinder mouth 27 having a check valve 22 which opens in a substantially opposite direction to each other, a flange portion 31, and a male screw portion 32. And a circulation port body 40 provided with an inner cylinder 42 communicating with the entrance 41 and an outer cylinder 44 communicating with the entrance 43, and the side surface 12 of the net cover 10 is connected to the male thread cylinder 30. Flange 31 and hole 1 Is externally fitted and attached so as to face the first outlet cylinder opening 23 and the second outlet cylinder opening 26, and the inner cylinder 25 of the diversion cylinder 20 is fitted into the inner cylinder 42 of the circulation mouth main body 40, and the male screw of the male screw cylinder 30 is attached. By screwing the portion 32 into the outer cylinder 44 of the circulation port main body 40, the first outlet cylinder port 23 and the first suction cylinder port 24 communicate with the inlet / outlet port 41 via the inner cylinder 25 and the inner cylinder 42, and The second outlet 26 and the second inlet 27 are connected to the inlet / outlet 43 via the outer cylinder 28 and the male screw cylinder 30, so that the hot water supply pipe of the circulation heating kettle can be connected to either the inlet / outlet 41 or the inlet / outlet 43. In addition to making it possible, the first outlet cylinder port 23 and the second outlet cylinder port 26 for hot water supply without the wire mesh strainer 13 in the bathtub can always be arranged downward.

[0006]

[Embodiment of the invention]

 An embodiment of the present invention is shown in FIGS. The bathtub hot water forced circulation port fitting of this example includes a net cover 10, a distribution pipe 20, a male screw cylinder 30, and a circulation port body 40.

As shown in FIGS. 1 to 3, the mesh cover 10 is a tray-shaped one having a wire mesh strainer 13 on the front surface 11 and a wire mesh strainer 13 and a hole portion 14 on the side surface 12. Is externally fitted to the flange portion 31 of the male screw cylinder 30, and is detachably attached to the front plate 21 of the flow dividing cylinder 20 with the screw 15.

As shown in FIGS. 2 to 4, the flow dividing cylinder 20 has a first blowing cylinder opening 23 and a first suction cylinder opening 24, which are open along the blind plate-shaped front plate 21 in substantially opposite directions. An inner cylinder 25 that communicates with each other, and an outer cylinder 28 that communicates with a second blow-out cylinder opening 26 and a second suction cylinder opening 27 that open along the front plate 21 in substantially opposite directions are provided. The front plate 21 is detachably screwed to the flange portion 31 of the male screw cylinder 30 via the screw 29 with the first blow-out cylinder mouth 23 and the second blow-out cylinder mouth 26 facing downward, whereby the outer cylinder 28 is attached. , Through the packing 33, in close contact with the flange portion 31 of the male screw cylinder 30 to communicate with the male screw cylinder 30, so that the inner cylinder 25 is fitted into the inner cylinder 42 of the circulation port body 40 and communicates with the inner cylinder 42. I'm running. The first outlet cylinder port 23, the first inlet cylinder port 24, the second outlet cylinder port 26, and the second inlet cylinder port 27 are each provided with a check valve 22 so that they can operate as the outlet cylinder port or the inlet cylinder port. A schematic sectional structure of the check valve 22 is shown in FIG. 221 is a valve seat, 222 is a valve, 223 is a spring, and 224 is a valve guide.

As shown in FIGS. 2 and 3, the male screw cylinder 30 includes a flange portion 31 and a male screw portion 32. The flange portion 31 is provided so as to be in close contact with the side wall 51 of the bathtub via the packing 52. The male screw portion 32 is adapted to be screwed with the female screw portion 45 of the outer cylinder 42 of the circulation port body 40.

As shown in FIGS. 2 and 3, the circulation port main body 40 includes an inner cylinder 42 communicating with the inlet / outlet port 41 and an outer cylinder 44 communicating with the inlet / outlet port 43. The inner cylinder 42 is adapted to be fitted into the inner cylinder 25 of the diversion cylinder 20 so that the inner cylinder 25 can communicate with the inner cylinder 42. The outer cylinder 44 is provided with a female screw portion 45 that is screwed with the male screw portion 32 of the male screw cylinder 30, whereby the flange portion 46 is brought into close contact with the side wall 51 of the bathtub via the packing 53. There is. A gripping stand 47 for a spanner or a monkey is provided on the outer peripheral surface of the outer cylinder 44.

[0011]

[Action]

 Since the present invention is configured as described above, if the hot water supply pipe is connected to the inlet / outlet port 41 during the plumbing work, hot water flows from the inlet / outlet port 41 through the inner cylinder 42 and the inner cylinder 25. , Reaches the first outlet cylinder port 23 and the first inlet cylinder port 24, and because of the check valve 22, works so that only the first outlet cylinder port 23 is supplied into the bath, and at the same time, the first inlet cylinder port 24 is completely discharged. Is blocked. In this case, since the return pipe is connected to the inlet / outlet 43, the cold water is sucked from the second suction cylinder port 27, passes through the outer cylinder 28 and the outer cylinder 44, and is returned from the entrance / exit 43 to the circulation heating pot. Work like. If the hot water supply pipe is connected to the inlet / outlet port 43 during the plumbing work, the hot water flows from the inlet / outlet port 43 through the outer cylinder 44 and the outer cylinder 28 to the second outlet cylinder port 26 and the second suction cylinder port 27. Since the check valve 22 is reached, the second check valve 22 works so that it is supplied into the bathtub only from the second outlet cylinder port 26, and at the same time, the second suction cylinder port 27 is completely closed. In this case, since the return hot water pipe is connected to the entrance / exit 41, the cold water is sucked from the first suction cylinder opening 24, passes through the inner cylinder 25 and the inner cylinder 42, and is returned from the entrance 41 to the circulation heating pot. To work. The first blow-out cylinder mouth 23 and the second blow-out cylinder mouth 26 can be arranged downward, and the net cover 10 is provided with a hole portion 14 at a portion facing the first blow-out cylinder mouth 23 and the second blow-out cylinder mouth 26. Therefore, the hot water does not get hindered by the wire mesh strainer 13 and works to flow downward into the bathtub vigorously.

[0012]

[Effect of the invention]

 According to the present invention, even if the hot water supply pipe is connected to either the entrance 41 or the exit 43, it can be used normally, so that it is necessary to be careful not to mistake the hot water supply pipe and the return hot water pipe during the plumbing work. In addition, the piping work can be easily performed. Further, according to the present invention, the first blow-out tube mouth 23 and the second blow-out tube mouth 26 can be provided downward, and the hot water supply blow-out tube mouth can be always placed downward.

Further, since the net cover 10 is provided with the hole portion 14 at the portion facing the blow-out tube mouth 23 and the blow-out tube mouth 26 and is not provided with the wire mesh strainer 13, the hot water vigorously flows into the bathtub, It can circulate in the bathtub. For this reason, the thermal efficiency is improved, and the hot water boiled at the set temperature in a short time. Further, the hot water does not flow back from the mesh cover 10 and return to the circulation heating pot.

[Brief description of the drawings]

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

FIG. 2 is a sectional view showing a main part of the embodiment shown in FIG.

FIG. 3 is a sectional view showing another main part of the embodiment of FIG. 1;

FIG. 4 is a perspective view of the distribution pipe of the embodiment of FIG.

FIG. 5 is a cross-sectional view showing details of a check valve.

[Description of sign]

 10 Mesh Cover 11 Front 12 Side 13 Wire Mesh Strainer 14 Hole 20 Dividing Cylinder 21 Front Plate 22 Check Valve 23 First Outlet Cylinder 24 First Suction Cylinder 25 Inner Cylinder 26 Second Outlet Cylinder 27 Second Suction Cylinder 28 Outer Cylinder 30 Male screw cylinder 31 Flange portion 32 Male screw portion 40 Circulation port main body 41 Inlet / outlet 42 Inner cylinder 43 Inlet / outlet 44 Outer cylinder

Claims (1)

[Utility model registration claims] 1. A net cover 10 having a wire mesh strainer 13 on the front surface 11 and the side surface 12 and a hole 14 on the side surface 12 and a blind plate-shaped front plate 21 which face in opposite directions to each other along the back surface thereof. The inner cylinder 2 that communicates with the first blow-out cylinder opening 23 and the first suction cylinder opening 24 with the check valve 22 that open
5 and an outer cylinder 28 that communicates with a second outlet cylinder opening 26 and a second suction cylinder opening 27 with check valves 22 that open along the back surface of the front plate 21 in substantially opposite directions. 20, a male screw cylinder 30 having a flange portion 31 and a male screw portion 32, a circulation port body 40 having an inner cylinder 42 communicating with the inlet / outlet 41 and an outer cylinder 44 communicating with the inlet / outlet 43, and a net cover 10, the side surface 12 of the male screw cylinder 30 to the flange portion 31 of the male screw cylinder 30, and the hole portion 14 to the first outlet cylinder port 23 and the second
The inner cylinder 25 of the diversion cylinder 20 is fitted to the outer cylinder so as to face the blow-out cylinder mouth 26, and the inner cylinder 42 of the circulation mouth body 40 is fitted.
And then insert the male screw portion 32 of the male screw cylinder 30 into the circulation port body 4
By being screwed into the outer cylinder 44 of No. 0, the first outlet cylinder port 2
3 and the first suction cylinder port 24 communicate with the inlet / outlet port 41 via the inner cylinder 25 and the inner cylinder 42, and the second outlet cylinder port 26 and the second suction cylinder port 27 through the outer cylinder 28 and the male screw cylinder 30.
3 so that the hot water supply pipe of the circulation heating kettle can be connected to either the inlet port 41 or the inlet port 43 and can be used, and the hot water supply can be used without the wire mesh strainer 13 in the bathtub. 2. A bathtub hot water circulation port fitting, characterized in that the 2 outlet cylinder port 26 can always be arranged downward.