JPH031452B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a tank device for cleaning a toilet bowl, and more particularly to a tank device for cleaning a toilet bowl by opening and closing a drain valve using electric power.

<Conventional technology> Conventionally, this vermilion toilet cleaning tank device was
There is one disclosed in Japanese Utility Model Publication No. 36-30190, shown in FIG.

In this case, when the electromagnet 101 is energized and the plunger 102 is pulled up, the drain valve 103 opens and all the water stored in the tank 104 is drained into the toilet bowl. There was a problem that a water seal could not be secured after cleaning.

<Problem to be Solved by the Invention> The problem to be solved by the present invention is to supply a small amount of water to the toilet bowl after flushing.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems include a tank, a water supply device that opens and closes a valve depending on the water level in the tank, a valve body, and a valve. A drain valve has a seat and is opened and closed by electric power, and a cylindrical member is provided on the outer periphery of the main body of the drain valve and has a small passageway in the side wall. It supplies a small amount of water to the toilet bowl.

<Function> The present invention opens the drain valve to drain the water in the tank into the toilet bowl, and after the water level drops below the upper end of the cylindrical member until the drain valve closes, the cylindrical member This system continues to drain water flowing into the toilet from the small passageway into the toilet bowl.

<Example> An example of the present invention will be described below based on the drawings.

This embodiment shows a case where the toilet bowl C is a large toilet bowl, and the tank A is mounted and fixed on the rear upper surface of the toilet bowl C.

Tank A has water supply device B on its side wall _A1 and bottom wall.
A drain valve a is installed at each of _A2 , and the former B is connected to the water supply source, and the latter a is connected to the toilet bowl C, respectively.

Water supply device B is a known ball tap faucet that has a float _B1 and a valve _{B2 that} is opened and closed by the vertical movement of the float B1.
When B ₁ falls, valve B ₂ is opened to supply water to tank A, and as the water level rises, float B ₁ rises to open valve B 2.
Close valve _B2 to stop water supply.

The drain valve a consists of a valve seat 1a provided on its main body 1 and a valve body 2a provided at the lower end of the operating rod 2.

The main body 1 is made of synthetic resin such as ABS resin and has a substantially cylindrical shape, and has an annular valve seat 1a protruding from the inner periphery of its lower end, a plurality of through holes 1b penetrating the inner and outer parts of the lower part, and an outer periphery. A male screw 1c is provided on the surface, but in this embodiment, a screw 1f is provided on the bottom surface of the main body 1.
It is formed on the outer circumferential surface of the upper end of the drain pipe 1d which is fixed to the drain pipe 1d.

The drain pipe 1d is made of metal such as brass and has a substantially cylindrical shape, and most of it is inserted through the bottom wall _A2 of the tank A and fixed to the bottom wall _A2 , and the outer circumference of the upper end is larger than the outer diameter of the main body 1. A male screw 1c protrudes in an annular shape so as to have a diameter, and attaches the cylindrical member 3 to its outer end face in a detachable manner.
At the same time, mark the bottom end with the flush water inlet C of the toilet bowl C.
Let's face 1.

Toilet bowl C has a wash water supply port _C1 on the upper surface of the rear part where tank A is placed and fixed, and _a plurality of insertion holes _C2 are drilled around this wash water supply port _C1 . , and a mounting hole _A3 drilled in the bottom wall _A2 of the tank A is connected with a bolt 4.

The cylindrical member 3 is made of synthetic resin such as ABS resin and has a cylindrical shape with a larger diameter than the outer diameter of the main body 1, and has a male screw 3a carved into the inner peripheral surface of the lower end thereof to be screwed into the male screw 1c. At the same time, small passages 3b are opened at appropriate height positions on the side wall, and in this embodiment, four small passages 3b are provided at equal intervals.

Further, a frame body 5 made of synthetic resin such as ABS resin and formed into a cylindrical shape having an outer diameter smaller than the inner diameter of the cylindrical member 3 is attached to the upper outer peripheral surface of the main body 1, and the frame body 5 and the cylindrical shape A passage 3c is formed between the member 3 and the member 3.

The frame body 5 has an upper cylindrical portion 5a, a strut portion 5b, and a lower cylindrical portion 5c continuous from above by opening a notch in the middle thereof, and the lower cylindrical portion 5c The lower end inner peripheral surface is screwed onto the upper outer peripheral surface of the main body 1, and a float storage device 6 is provided inside.
Insert.

The float storage device 6 has a double inner and outer cylindrical wall 6a and an outer cylindrical wall 6 made of synthetic resin such as polypropylene.
The lower end of the cylindrical outer wall 6b is fitted and fixed to the upper end of the main body 1, and the bottom wall 6c has a small hole 6d. A float chamber 6e is formed between the inner and outer walls 6a and 6b of the cylinder through the small hole 6d.
and a space 1e formed inside the main body 1.

An annular hollow float 7 having an inner diameter larger than the cylindrical inner wall 6a and an outer diameter smaller than the cylindrical outer wall 6b is housed inside the float chamber 6e, and an operating rod is disposed inside the cylindrical inner wall 6a. 2 is slidably guided and inserted.

The buoyant force of the float 7 is slightly larger than the downward force exerted on the operating rod 2 when the drain valve a is open, but when the drain valve a is closed, the water pressure applied to the valve body 2a is adjusted downward to the operating rod 2. It is set so that it is smaller than the force.

The operating rod 2 is a cylindrical body made of synthetic resin such as ABS resin, and has the function of an overflow pipe, and a valve body 2a formed in the shape of a disk from an elastic sheet material such as rubber is integrally attached to the lower end of the operating rod 2. The valve body 2a corresponds to the valve seat 1a of the main body 1, and the two constitute a drain valve a.

Further, a skirt-shaped stopper 2b is attached to the outer peripheral surface of the intermediate portion of the operating rod 2 so as to be inserted into the float chamber 6e, and the upper end has an inner diameter larger than the inner diameter of the operating rod 2. A cylindrical overflow port 2c is fixed, and a ring 2d is secured to the inner surface of the intermediate portion of the overflow port 2c.

The ring 2d is formed into a disk shape from a synthetic resin such as polyacetal, and has a center hole 2e in the center thereof through which the plunger 8 is inserted, and a plurality of water inlets 2f, four in this embodiment, around the center hole 2e. ... are drilled through each of them, and the outer peripheral surface is fixed to the inner surface of the intermediate portion of the overflow port 2c via a retaining ring 2g or the like.

The plunger 8 is the center hole 2e of the ring 2d.
It consists of a lower rod 8a that is inserted vertically and slidably through the inside of the support body 9, and an upper rod 8b that is located inside the support body 9 and linked to the electromagnet 10.The ends of both rods 8a and 8b are fitted together to form a pivot 8c to connect the two.

The lower rod 8a is made of a synthetic resin such as polyacetal and has a smaller diameter than the inner diameter of the center hole 2e, and has a flange 8d projecting from its lower end that has a larger diameter than the inner diameter of the center hole 2e, and also has a flange 8d which is configured to close the drain valve a. In this state, the flange 8d
An appropriate distance is provided between the upper surface and the lower surface of the ring 2d.

On the other hand, the upper end of the upper rod 8b of the plunger 8 is inserted into the electromagnet 10.
When 0 is energized, it is formed to rise upward for an appropriate amount of time.

The drain valve a is normally closed as shown in FIG. 1, and the level of the stored water is slightly below the upper end of the overflow port 2c fixed to the upper end of the operating rod 2.

Now, when the electromagnet 10 is energized, the plunger 8
The upper rod 8b and the lower rod 8a are pulled up, and the operating rod 2 is pulled up via the ring 2d and the overflow port 2c by the flange 8d formed at the lower end of the lower rod 8a, and the drain valve a is opened. Most of the water in A passes through the passage 3c between the lower cylindrical part 5c of the frame 5 and the cylindrical member 3, the through hole 1b of the main body 1, and some of the water passes through the strainer 11, the float chamber 6e, Small hole 6d of bottom wall 6c of float storage device 6, internal space 1 of main body 1
The water is discharged from the drain valve a into the toilet bowl C through the drain valve a, and the water level begins to drop rapidly. (Fig. 4) At this time, since the water passage area of the small hole 6d is extremely small compared to the through hole 1b, the rate of descent of the water level in the float chamber 6e is slower than the rate of decrease of the water level in other parts, and the rate of descent of the water level in the float chamber 6e is slower than the rate of decrease of the water level in other parts. The water level inside is always higher than the water level in other parts. (Fig. 5) Then, when most of the water in tank A is discharged into toilet bowl C and the water level in tank A except for the float chamber 6e has fallen to the upper end of cylindrical member 3, the predetermined amount of water has finished flowing. However, there is still water left in the float chamber 6e.
Since the float 7 disposed in the float chamber 6e is in a floating state, the operating rod 2, that is, the valve body 2a, is delayed in closing the drain valve a whose descent is prevented by the float 7 via the stopper 2b. be kept.

Therefore, after the water level drops below the upper end of the cylindrical member 3, only the water flowing into the passage 3c from the small passage 3b of the cylindrical member 3 continues to be drained, and the toilet C becomes a siphon-type toilet. In this case, this water is supplied as a seal to the trap. (Fig. 6) The amount of water supplied as a seal to the toilet bowl C through this small passage 3b is determined by the delay closing time by the delay closing means 12 (described later) and the height of the cylindrical member 3 when no water is supplied from the water supply device B. By changing the height position and opening area of the small passage 3b, the amount of water sealing required by the toilet bowl C is set to be approximately the same or slightly smaller.

Preferably, under the condition of the lowest water pressure that requires water supply device B, the amount of water supplied from water supply device B during the late closing time is subtracted from the water sealing amount required by toilet bowl C is small during the late closing time. It is made to flow out from the passage 3b.

In this way, water will not be wasted, and even if the water supply pressure is high, by adjusting and reducing the pressure of the water stop valve of the ball tap faucet, which is the water supply device B, it is possible to reduce excess water flowing.

After that, the float chamber 6 accompanies drainage from the small hole 6d.
As the water level in e is lowered, the position of the float 7 is lowered, and accordingly, the valve body 2a approaches the valve seat 1a and closes the drain valve a, completing one drain. (Fig. 7) On the other hand, when the water level in tank A drops to an appropriate height, water is supplied into tank A from the ball tap hydrant, which is water supply device B installed in tank A, and the drain valve a is closed. After that, it stores water and returns to the state shown in Figure 1.

That is, the drain valve a closes with a slight delay after draining a predetermined amount of water, and the float storage device 6, the small hole 6d, the float 7, and the stopper 2b constitute a delay closing means 12 for the drain valve a. become.

The timing of energization of the electromagnet 10 for operating the drain valve a is controlled by a control device (not shown) based on the operation of an operating section D provided on the wall of the toilet or the sensing of a sensing section E.

The operating section D is, for example, a self-resetting push button switch, and is configured to be operated manually, and the sensing section E is, for example, a photoelectric reflection type photoelectric sensor.

In the case of the control device D, as shown in Fig. 8, when the control device D is operated after using the toilet, the electromagnet 10 is energized for T ₁ hour, the drain valve a is opened, and a certain amount of water is supplied. Even if the toilet bowl C is flushed and the operating part D is further pressed or kept pressed within _T2 hours, the electromagnet 10 is not energized and the drain valve a does not operate. Further, in the case of the sensing part E, when the sensing ends, such as when the person leaves after urinating, the electromagnet 10 is energized and operates in the same manner as the operation of the operating part D described above.

Note that _T1 time and _T2 time can be adjusted to appropriate times, and here, _T1 is set to 1 second and _T2 is set to 11 to 60 seconds.

Therefore, even if the operating part D is operated while the toilet C is being flushed or a person leaves, etc., water will not continue to drain into the toilet bowl C, and as shown in FIG. Even if the sensing parts E are arranged together, they will not be cleaned redundantly.

Furthermore, if the operating part D and the sensing part E are provided, the sensing part E will prevent the user from using the toilet C even if he or she is unable to operate the operating part D after use due to a physical disability or forgets to operate it. To automatically sense and reliably clean a toilet bowl C.

It should be noted that the above-mentioned embodiments explain the special structure of the present invention, and the present invention is not limited thereby, and it goes without saying that various modifications can be made without changing the gist of the invention. For example, a drain pipe 1d fixed to the bottom surface of the main body 1
Although the male screw 1c is carved into the main body 1, the male screw 1c may be carved directly into the main body 1.

<Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

The water in the tank is drained into the toilet by opening the drain valve, and after the water level drops below the upper end of the cylindrical member and before the drain valve is closed, water flows in through the small passage in the cylindrical member. Since water is continuously drained into the toilet bowl, a small amount of water can be supplied to the toilet bowl after flushing, and even if the toilet bowl is a siphon type toilet bowl, a water seal can be ensured after flushing.

Since the drain valve is opened and closed electrically, remote control is possible and operation is reliable.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a toilet bowl cleaning tank device showing one embodiment of the present invention, and FIG.
3 is a reduced perspective view showing the appearance of the installed state, FIGS. 4 to 7 are vertical sectional views showing the operating state, FIG. 8 is a time chart, and FIG. 9 is a conventional model. 1 is a cross-sectional view showing an example of a toilet bowl cleaning tank device of FIG. A...Tank, B...Water supply device, C...Toilet bowl,
a...Drain valve, 1...Main body, 1a...Valve seat, 2a
... Valve body, 3 ... Cylindrical member, 3b ... Small passage.

Claims (1)

[Claims] 1. A tank, a water supply device that opens and closes the valve according to the water level in the tank, a drain valve that has a valve body and a valve seat and opens and closes using electric power, and a small drain valve that is provided on the outer periphery of the main body of the drain valve and that is attached to the side wall. A cylindrical member having a passage,
A tank device for flushing a toilet bowl, which supplies a small amount of water to the toilet bowl through a small passage just before the valve body of the drain valve closes.