JPH0239178Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a bathtub drainage device that automatically supplies hot water.

(Prior art) Conventionally, a drain plug used in a bathtub, etc. is shown in Fig. 2 of Japanese Utility Model Application Publication No. 1989-191289 (Fig. 3 of the drawing of the present application).
There is one shown in the figure.

Briefly explaining FIG. 3 above, a plug body 36 that is removably inserted into the drain port 35 is connected to a handle member 38 connected to one end of a screw-type connecting rod 37.
When the connecting rod 37 is actuated like a screw by pulling the
Drainage is performed by pulling out the stopper 36 from the drain port 35. In the case of the above, when draining water, you can simply pull the handle member from the top of the bathtub, but when supplying hot water, you have to reach inside the bathtub and fit the stopper into the drain opening, which is extremely difficult. This is troublesome, and especially in the case of bathtubs that supply hot water automatically, there are many inconveniences in which hot water is supplied without the stopper being inserted and the hot water is wasted.

(Problems to be Solved by the Invention) The problems to be solved by the invention are as follows: A ball valve is suspended at the bottom of a hot water supply cylinder provided at the inner corner of an automatic hot water bath, and A drainage section with multiple holes, a stopper, and a valve seat is provided, and the valve seat is closed with a ball valve by the water pressure of hot water supplied from the top of the hot water cylinder and the weight of the sphere during hot water supply, and the ball valve is closed when draining water. The water can be drained by pulling it up to the stopper position.

(Means for Solving the Problems) The technical means taken by the present invention to solve the above problems is to have a drainage part whose diameter is increased by bulging the diameter of the surface that contacts the bottom of the bathtub, This drainage part is provided with a plurality of holes communicating with the bathtub, and a stopper and a valve seat are provided above and below these holes, and this hot water supply cylinder is attached to a bottom hole provided in one corner of the bathtub. A ball valve with an O-ring wrapped around the center of the spherical horizontal part is interposed between the stopper and the valve seat, and is suspended by a drawstring. When the valve is pulled up to the bottom of the stopper, the ball valve stops due to sliding contact between the O-ring and the inner peripheral surface of the hot water supply cylinder, opening the valve seat,
When automatic hot water supply from the faucet starts, the ball falls onto the valve seat due to the head of the hot water supply and its own weight, thereby blocking the valve seat.

(Function) A ball valve is suspended in the vagina of the hot water supply cylinder via a drawstring.
During automatic hot water supply, the hot water discharged from the faucet falls onto the valve seat due to the height difference and its own weight, blocking the valve seat, and when draining water after bathing, the drawstring is operated to pull the ball valve up to the bottom of the stopper. Do the following.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

In this embodiment, as shown in FIGS. 1 and 2A, a hot water supply cylinder 1 has a cylindrical shape and has male threaded portions 4, 4a on the upper and lower outer peripheries and a lumen 5 inside.
A drainage part 1a is formed by expanding the outer diameter of the ground surface with the bottom surface B into a truncated conical shape, and a plurality of holes 6 communicating with the bathtub A are opened on the outer periphery of the drainage part 1a. A stopper 11 corresponding to a ball valve 8 (to be described later) is arranged at the upper part of the inner cavity 5 of the portion 1a, and a valve seat 12 which is opened and closed by the ball valve 8 is arranged at the lower part at an appropriate interval. The ball valve 8 has an O-ring 9 wrapped around the outer circumference of the center of the spherical horizontal part, and the lower end of a drawstring C is fastened to the upper hook 10, and the ball valve 8 is connected to the stopper 11 through the drawstring C. The ball valve 8 is suspended in the drainage part 1a between the valve seats 12 so as to be vertically displaceable, and the ball valve 8 has its own weight to the extent that it does not generate buoyancy even when subjected to water pressure, and is attached to the hook 10 of the ball 8. The other end of the drawstring C is connected to a hook 10a attached to a water faucet 14, which will be described later.

The hot water supply cylinder 1 configured in this manner is inserted into the bottom hole 2 bored in the bottom surface B of one corner of the bathtub A, and is fixed by attaching a nut 3 to the male threaded portion 4a. The ring part 26 of the separately provided support plate 25 is fitted into the lower part of the male threaded part 4 of the ring part 2.
A nut 3a is attached from above 6 to connect the support plate 25 and the upper part of the hot water supply cylinder 1, and the support plate 25 is
By appropriately fixing to the upper edge of the bathtub A,
The hot water supply cylinder 1 is supported by the support plate 25 and the nut 3a.
is integrally fixed to bathtub A. A faucet 14 that supplies hot water at an appropriate temperature to the bathtub A is integrally provided with an electromagnetic on-off valve 13, and a discharge port 15 is arranged so as to discharge hot water from the upper part of the hot water supply cylinder 1 toward the inner cavity 5. It is connected via a hot water supply pipe 16 to a mixing valve 17 that allows the temperature and flow rate of the mixed water to be changed in various settings. The hot water supply pipe 16
The mixing valve 17 is separated into a water supply pipe 18 and a hot water supply pipe 19 on the upstream side of the mixing valve 17, and the mixing valve 17 is housed in a control box 20, which has a water supply pipe 18 and a hot water supply pipe 19. Connect the supply pipe 19 with a cap nut 21,
A mixing valve 17 connected with 22 is provided.

The control box 20 can be remotely controlled by a separately provided remote control switch (hereinafter simply referred to as remote control switch 27).
The remote control switch 27 includes a power switch 28,
The automatic hot water supply system includes a temperature control volume 29 for setting the temperature of hot water discharged from the faucet 14 and a flow rate control volume 30 for setting the flow rate.

To supply hot water at an appropriate temperature for use in the bathtub A, set the desired temperature and flow rate to the temperature control volume 2 using the remote control switch 27 shown in FIG.
9 and the flow rate adjustment volume 30. Next, when the power switch 28 is turned on, the electromagnetic on-off valve 13 connected to the faucet 14 opens, and hot water at a preset temperature is poured from the discharge port 15 of the faucet 14 into the inner cavity of the hot water supply cylinder 1. released to.

At this time, the ball valve 8 is inserted into the inner cavity 5 as shown in FIG.
Due to the pressure exerted by the drop of hot water supplied into the interior and its own weight, the hot water falls all at once inside the drainage section 1a, and the valve seat 12
The ball valve 8 stopped at the valve seat 12 is stopped at the valve seat 12, and the O-ring 9 provided on its outer circumferential surface comes into close contact with the inner circumferential surface of the cylinder end 1b, and at the same time the lower half of the spherical surface closes to the valve seat 12. Since the pressure comes into contact with the seat 12, the valve seat 12 and the drain port 7 are blocked, and the hot water falling from the inner cavity 5 is drained into the drain section 1.
It flows out into the bathtub A from the plurality of holes 6 on the circumferential surface a and the hole 6a at the top of the stopper 11. When the supply of hot water at a preset flow rate is finished, the electromagnetic on-off valve 13 automatically closes to finish supplying hot water to the bathtub A.

Next, after completing your necessary bathing, or on the next day, use the hook 1 shown in Figure 1 to drain the dirty water in the bathtub A.
When the pull string C tied to 0a is pulled up, the ball valve 8 suspended from the pull string C rises from the position shown in FIG. 2A and contacts the stopper 11 as shown in FIG. It is stopped by the contact pressure between the inner cavity 5 and the circumferential surface of the inner cavity 5. By the above operation, the drain port 7 that was blocked by the ball valve 8 is opened, so the dirty water in the bathtub A flows out from the hole 6 into the drain part 1a, and is further discharged from the drain port 7, and at the same time Inner cavity 5 that had accumulated in body 1 at the same water level as bathtub A
The dirty water flows out from the hole 6a into the bathtub A one after another, and completely flows out from the drain port 7.

(Effects of the invention) Since this invention is constructed as described above, it has the following advantages.

(1) A ball valve with a weight that does not create buoyancy due to water pressure is placed between the valve seat inside the hot water cylinder and the stopper via a pull string so that it can move up and down, so all you have to do is pull up the draw string. When the water is drained from the bathtub and the automatic hot water supply system is activated, the valve seat can be automatically and quickly closed.

(2) Even in the unlikely event that the additional hot water discharged from the faucet suddenly changes to boiling water due to a malfunction in the mixing valve's temperature control, all of this hot water will be contained in the inner cavity of the hot water supply cylinder. Therefore, it is possible to reliably prevent the danger of boiling water being directly sprinkled on the person taking a bath.

(3) Compared to conventional ones, the hot water supply cylinder not only has a simpler structure, but also can use the existing bottom hole of the bathtub, making it compatible with any bathtub and occupying less space inside the bathtub. The efficiency is also great because it is located in a corner that has rarely been used in the past.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the positional relationship of the overall piping and arrangement of the present invention, Figure 2 A is an explanatory diagram of the operating procedure showing the position of the ball valve when water is stopped, and B is an explanatory diagram of the ball valve when draining water. FIG. 3 is an explanatory diagram of the operation procedure showing the position of , and is an explanatory diagram of the prior art. Explanation of symbols of main parts, 1...Hot water cylinder, 1b
...Cylinder end, 1a...Drainage part, 2...Bottom hole, 6...
... Hole, 8 ... Ball valve, 9 ... O-ring, 11 ... Stopper, 12 ... Valve seat, 13 ... Solenoid on-off valve,
27... Remote control switch, A... Bathtub, C...
Drawstring, D...Automatic hot water supply system.

Claims (1)

[Scope of utility model registration request] By remote control using the remote control switch 27,
In a bathtub A connected to an automatic hot water supply system D that automatically supplies hot water at a preset temperature and flow rate via an electromagnetic on-off valve 13, the bathtub A has a cylindrical shape and has a lower part. A hot water supply cylindrical body 1 is formed, which has a drainage part 1a that bulges out to a diameter larger than the bottom hole 2 at one corner and has a plurality of holes 6 on its circumferential surface, and a cylindrical end 1b that is inserted into the bottom hole 2. together with the drainage section 1
A stopper 11 is protruded from the upper part of the ball valve 8 to prevent the ball valve 8 from rising excessively, and a valve seat 12 which is opened and closed by the ball valve 8 is arranged in the cylinder end 1b. 8 connects the valve seat 12 and the stopper 1 via the pull string C
This ball valve 8
An O-ring 9 is wound around the outer periphery of the center of the spherical horizontal part, and when hot water is automatically supplied to the bathtub A, the ball valve 8 is pressed against the valve seat 12 by the head of hot water supply and its own weight to close it, This drainage device for an automatic hot water bath is characterized in that when draining water, a ball valve 8 is pulled up to a stopper 11 via a drawstring C to open a valve seat 12.