JPH09111838A - Ball tap device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost of a ball tap device which controls the feeding and stopping of water to a flush water tank by reducing the required number of part items and to ensure operation of the device. SOLUTION: A valve element 40 in a ball tap device is provided integrally with a float 38, and a guide part 32 which guides the vertical movement of the float 38 is provided. The valve element 40 is put into closing movement in combination with the rise of the float 38 to cut off water, and is put into opening movement in combination with the fall of the float 38 to discharge water from a water spout 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball tap device arranged inside a flush water tank for storing toilet flush water and supplying water to the flush water tank when the water in the flush water tank is discharged.

[0002]

2. Description of the Related Art Conventionally, this type of ball tap device has a float that moves up and down as the water level inside the wash water tank rises and falls, and the lifting motion of the float is transmitted to the valve body by the lever principle. The structure is such that the body is moved and the valve is opened and closed accordingly.

FIG. 6 shows an example. In the figure, 200 is a toilet bowl, 202 is a wash water tank, and 204
Is a ball tap device disposed inside the wash water tank 202 and includes a float 206. This ball tap device 204 has a water discharge port 210 at the tip of a water discharge pipe 208.
Further, it has a main water passage 212 for tap water therein, and a valve portion for opening and closing the main water passage 212 is provided on the main water passage 212.

This valve portion is provided with a piston type valve body 214 and a valve seat portion 216, and the valve body 214 is
Float 2 through lever mechanism (link mechanism) 218
06, the valve body 214 is moved up and down, that is, the valve is closed and opened by the vertical movement of the float 206.

The lever mechanism 218 has an arm 222 rotatable about the shaft 220, a rod 226 rotatable about the shaft 220 and connected to the float 206, and a connection connecting the arm 222 and the rod 226. And a member 228 for moving the float 206 up and down.
It is adapted to be converted into two rotational movements and transmitted to the piston type valve body 214, which is moved up and down. Arm 2
A curved contact portion 230 is provided at a base end portion of the valve 22, and the contact portion 230 is brought into contact with the valve body 214.

[0006]

In the case of the conventional ball tap device for transmitting the motion of the float 206 to the valve body 214 via the lever mechanism 218, the float 206 is used.
However, since the lever mechanism 218 is made up of many parts, the number of parts required is large and the cost is high. In addition to the problem, the ball tap 204 occupies a large space inside the wash water tank 202, and in some cases, the float 206 may come into contact with the wall of the wash water tank 202 to hinder smooth operation.

[0007]

The invention of the present application has been made to solve such a problem. Therefore, the invention of the present application is arranged inside the wash water tank, and the water discharge pipe for supplying tap water into the wash water tank from the water discharge port, and ascending / descending according to the rise and fall of the water level inside the wash water tank. In a ball tap device comprising a float and a valve mechanism section for controlling water discharge / water stoppage from the water discharge port, a valve body in the valve mechanism section is integrated with the float, and the float is vertically moved and guided. Is provided to stop the water by closing the valve body together with the ascending movement of the float to stop the water, and open the valve body together with the descending movement of the float so that the water is discharged from the water discharge port. It is characterized in that the water is discharged.

According to another invention of the present application, in claim 1, the valve element is a valve element of a main valve portion for directly opening and closing a main water passage of tap water in the discharge pipe ( Claim 2).

According to a still further invention of the present application, in claim 1, the valve mechanism portion directly opens and closes a main water passage in the water discharge pipe, and opens and closes the main valve portion. A pilot operation part, the pilot operation part is formed behind the main valve body in the main valve part, and a pressure water chamber for pressing the main valve body in the valve closing direction based on the internal water pressure; A communication hole that connects the pressure water chamber and a portion of the main water passage upstream of the main valve body, a water drain hole for draining water from the pressure water chamber, and a pilot that opens and closes the water drain hole A pilot valve body of the pilot valve portion is integrated with the float, and the pilot valve portion opens and closes in accordance with the lifting motion of the float. (Claim 3).

[0010] Still another invention of the present application is Claims 1, 2, 3
In any of the above, the float is composed of a plurality of container-shaped divided bodies, the divided bodies are screwed to constitute the entire float, and by changing the screw connection position of the divided bodies, The vertical height of the float is adjustable (claim 4).

[0011]

As described above, according to the first aspect of the present invention, the valve element of the ball tap device is integrated with the float, and is vertically guided by the guide portion. The float moves up and down. According to the present invention, since the lever mechanism is not required, it is possible to reduce the parts conventionally required for the lever mechanism. Therefore, the number of required parts of the ball tap device as a whole can be reduced, and the cost can be reduced.

Further, since the lever mechanism is not required, the space occupied by the ball tap device can be reduced, and therefore the problem that the float contacts the wall surface of the wash water tank and the smooth operation is obstructed can be solved. It is possible to increase the reliability of the operation in.

According to the present invention, the valve body of the main valve portion for directly opening and closing the main water passage of the tap water in the discharge pipe is integrated with the float. The number of required parts can be minimized.

According to the third aspect of the invention, the valve body of the main valve portion for opening and closing the main water passage in the discharge pipe is opened and closed by the pilot operating portion, and the pilot valve body in the pilot operating portion is integrated with the float. The pilot valve body is closed and opened by the lifting movement of the float. According to the present invention, there is an advantage that the main valve portion can be opened and closed with a small lifting force of the float.

According to a fourth aspect of the present invention, the float is composed of a plurality of divided bodies, the divided bodies are screw-connected, and the vertical height of the float can be adjusted by changing the screw connection position. Therefore, according to the present invention, there is an advantage that the set water level when the tank is full can be easily adjusted by changing the screw connection positions of the divided bodies.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 2 denotes a water discharge pipe having a flange 4 on the base end side, and the tank wall 8 is sandwiched from both inside and outside by the flange 4 and a fixing nut 6 screwed into the water discharge pipe base end portion. It is attached to the tank wall 8 in such a state. A water supply pipe 10 is also connected to the water discharge pipe 2 by a cap nut 12.

The water discharge pipe 2 has a water discharge port 14 at its tip, and a main water passage 16 for tap water is formed therein. A main valve portion 18 is provided on the main water passage 16, and the main valve portion 18 causes the main water passage 16 to move to the upstream portion 16.
It is divided into A and the downstream portion 16B.

Reference numeral 20 is a main valve body composed of a diaphragm valve, and the main valve portion 18 is opened and closed by contacting or separating the main valve body 20 from the valve seat portion 22.
The main valve body 20 composed of a diaphragm valve is attached to the mounting member 2
It is attached by screwing No. 4 into the water discharge pipe 2 side.

A pressure water chamber 26 is formed behind the main valve body 20, and the pressure water chamber 26 and the upstream portion 16A of the main water passage 16 are communicated with each other through a communication hole 28. A spring 30 is mounted inside the pressure water chamber 26, and the main valve body 22 is biased in the valve closing direction by the spring 30.

Reference numeral 32 denotes a guide portion formed of a tubular member such as a cylinder, and the guide portion 32 is provided by screwing the upper end portion of the tubular member into the mounting member 24. Here, a through hole 34 is formed in the upper portion of the side surface of the guide portion 32, and a stopper portion 36 is formed in the lower portion of the inner peripheral surface of the guide portion 32.

Reference numeral 38 denotes a float having a columnar shape such as a columnar shape and an inner hollow shape, and is fitted in the guide portion 32 so as to be vertically movable. A hemispherical valve element (pilot valve element) 40 is integrally provided at the center of the upper surface of the float 38. The valve element 40 has a drain hole 42 as shown in an enlarged view in (B). It is adapted to be brought into contact with the surrounding valve seat portion 44. Here, the water drain hole 42 is for draining the water in the pressure water chamber 26 to the outside.

Now, when a drain valve (not shown) is opened by operating a handle or the like provided in the wash water tank, the wash water in the wash water tank is discharged to the toilet side, and the water level in the wash water tank drops. Along with this, the float 38 has the guide portion 32.
The inside is lowered until it contacts the stopper 36. As a result, the pilot valve body 40 is separated from the valve seat portion 44, and the drain hole 4
2 is opened, and the water in the pressure water chamber 26 flows into the guide portion 38 and further to the outside through the through hole 34.

The water pressure in the pressure water chamber 26 is the main water passage 1.
Since it is lower than the water pressure on the upstream portion 16A side in No. 6,
The main valve body 20 of the main valve portion 18 is pushed downward and separated from the valve seat portion 22. By opening this main valve portion 18,
The upstream portion 16A and the downstream portion 16B of the main water passage 16 communicate with each other, and the water flowing in from the water supply pipe 10 causes the water discharge port 14 of the water discharge pipe 2
The water is discharged into the wash water tank and water is supplied.

Next, when the discharge valve of the wash water tank is closed, the water level in the wash water tank rises, and the float 38 rises in the guide portion 32 accordingly. When the water level further rises, the pilot valve element 40 provided integrally with the float 38 contacts the valve seat portion 44 to close the water drain hole 42, and the outflow of water from the pressure water chamber 26 is stopped.

Since the water in the upstream portion 16A of the main water passage 16 flows into the pressure water chamber 26 through the communication hole 28, the water pressure in the pressure water chamber 26 gradually rises, and finally the water pressure and the spring 30. The urging force overcomes the water pressure of the upstream portion 16A and pushes the main valve body 20 upward to bring it into contact with the valve seat portion 22. That is, the main valve portion 18 is closed. As a result, the upstream portion 16A and the downstream portion 16B of the main water passage 16 are blocked, the water discharge from the water discharge port 14 is stopped, and the water supply to the wash water tank is stopped.

According to this embodiment, since the lever mechanism for transmitting the rising / lowering motion of the float to the valve body is not used, it is possible to reduce the parts conventionally required for the lever mechanism. Therefore, the number of required parts of the ball tap device as a whole can be reduced, and the cost can be reduced.

Further, since the lever mechanism is not required, the space occupied by the ball tap device can be reduced, and the problem that the float 38 comes into contact with the wall surface of the wash water tank and the smooth operation is obstructed can be solved. The reliability of operation in the device can be increased.

Further, in order to convert the ascending / descending motion of the float 38 into a rotational motion so as not to act on the valve body 40 and to directly move the valve body 40 up and down, the valve body 40 is not in an oblique posture when the valve is closed, Water can be stopped smoothly.

Further, in this embodiment, since the main valve portion 18 is opened and closed by opening and closing the pilot valve body 40, there is an advantage that the main valve portion 18 can be opened and closed with a small lifting force of the float 38.

FIG. 2 shows another embodiment of the present invention. In the figure, reference numeral 46 denotes a water discharge pipe, which has a water discharge port 48 at its tip and has a main water passage 50 for tap water inside.
Are formed.

In this example, the guide portion 32 has an inwardly facing flange portion 52 at the upper end, and the flange portion 52 is screwed to the water discharge pipe 46. Specifically, a female screw portion 53 is formed on the flange portion 52, and the female screw portion 53 is screwed to the male screw portion 51 on the outer peripheral surface of the distal end of the water discharge pipe 46.

A float 38 is fitted in the guide portion 32, and a hemispherical main valve body 54 is integrally provided at the center of the upper surface of the float 38. And this main valve body 5
4 and the valve seat portion 56 around the spout 48 constitute a main valve portion 57.

Also in this embodiment, since the lever mechanism for converting the up-and-down movement of the float into the up-and-down movement of the valve body is not used, the number of required parts can be kept small and the up-and-down movement of the float 38 is accompanied. Since the valve body 54 integrally moves up and down to perform the valve closing / opening movement, there is no problem that the valve body is in an oblique posture when the valve is closed and water is not stopped properly.

FIG. 3 shows still another embodiment of the present invention. In the figure, reference numeral 60 is a water discharge pipe in which a main water passage 16 for tap water is formed.
6 is divided into an upstream portion 16A and a downstream portion 16B by the main valve portion 62.

The main valve portion 62 is composed of a fitting portion 64, an insertion hole 66 formed at a portion corresponding to the fitting portion 64, and a main valve body 70. Here, the main valve body 70 is integrally provided on a float 68 which is vertically guided by a guide portion 72.

In this example, the main valve body 70 moves down together with the float 68 as the water level in the wash water tank lowers, and the main valve portion 62 opens. Further, as the water level in the wash water tank rises, the main valve body 70 fits into the fitting portion 64, shuts off the upstream portion 16A and the downstream portion 16B of the main water passage 16, and stops the water supply to the wash water tank. Let

Since the lever mechanism is not required in this embodiment as well, the number of parts required for the ball tap device can be reduced to reduce the cost, and the space occupied by the ball tap device can be reduced.

FIG. 4 shows still another embodiment of the present invention. First, in (A), reference numeral 74 is a float, which is composed of a plurality of container-like divided bodies 76, 78, 80, and the divided bodies 76, 78, 80 are connected by screw connection. Thus, the valve body 82 is provided on the upper surface of the uppermost divided body 76.

Further, in (B), reference numeral 84 is a float composed of a divided body 86 and a divided body 88, and a female screw is formed on the inner peripheral surface of one divided body 86, and the other divided body 8 is formed.
A male screw is formed on the outer peripheral surface of 8, and the divided bodies 86 and 88 are joined by screwing the male screw into the female screw. Reference numeral 90 is a seal member for preventing water from entering. Further, the valve body 82 is integrally provided on the upper surface of the divided body 86.

When the floats 74 or 84 are constructed by screw-connecting a plurality of divided bodies in this way, the height of the whole float 74 or 84 can be adjusted by changing the screw-attached positions of the divided bodies. As a result, there is an advantage that the set water level can be easily adjusted when the tank is full.
The valve body 82 may be the valve body of the main valve portion or the pilot valve body of the pilot operating portion.

In each of the above embodiments, the valve body is integrally provided on the float, but the float may also be used as the valve body as shown in the example of FIG. . In the figure, reference numeral 92 denotes a cylindrical guide portion, and a water discharge pipe is formed by screwing a female screw formed on the inner peripheral surface of the upper end portion and a male screw formed on the outer peripheral surface of the water discharge port 48 at the distal end portion of the water discharge pipe 46. It is connected to 46.

Reference numeral 94 denotes a spherical float valve body which also serves as a float and a valve body, and the float valve body 94 and the valve seat portion 56 of the water discharge port 48 constitute the main valve portion 96 of this embodiment. There is. Reference numeral 98 is a stopper provided on the guide portion 92, and 100
Is an outlet for discharging tap water discharged from the outlet 48 into the guide portion 92 into the wash water tank.

Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in various modified forms without departing from the spirit of the present invention.

[Brief description of the drawings]

FIG. 1 is a diagram showing a ball tap device according to an embodiment of the present invention.

FIG. 2 is a diagram of a main part of a ball tap device according to another embodiment of the present invention.

FIG. 3 is a diagram of a main part of a ball tap device according to still another embodiment of the present invention.

FIG. 4 is a view of a float in a ball tap device according to still another embodiment of the present invention.

FIG. 5 is a diagram of a main part of a ball tap device according to still another embodiment of the present invention.

FIG. 6 is an explanatory view of a conventional ball tap device and its defects.

[Explanation of symbols]

 2, 46, 60 Water discharge pipe 14, 48 Water discharge port 16, 50 Main water passage 18, 57, 62, 96 Main valve section 20, 54, 70, 82 Main valve body 32, 72, 92 Guide section 38, 68, 74 , 84 Float 40 Pilot valve body 42 Drain hole 76, 78, 80, 86, 88 Split body 94 Float valve body

Claims (4)

[Claims] 1. A water discharge pipe arranged inside the wash water tank for supplying tap water into the wash water tank from a water discharge port, and a float that moves up and down as the water level inside the wash water tank rises and falls. In a ball tap device comprising a valve mechanism unit for controlling water discharge / water stoppage from the water discharge port, a valve unit in the valve mechanism unit is integrated with the float, and a guide unit for vertically moving and guiding the float is provided. Provided,
In order to stop the water by closing the valve body together with the ascending movement of the float, and to open the valve body together with the descending movement of the float so as to spout water from the water outlet. A ball tap device characterized in that 2. The ball tap device according to claim 1, wherein the valve body is a valve body of a main valve portion that directly opens and closes a main water passage of tap water in the water discharge pipe. 3. The main valve unit according to claim 1, wherein the valve mechanism unit directly opens and closes a main water passage in the water discharge pipe,
And a pilot operating portion for opening and closing the main valve portion, the pilot operating portion being formed behind the main valve body in the main valve portion, and operating the main valve body based on internal water pressure. A pressure water chamber for pressing in the valve closing direction, a communication hole for communicating the pressure water chamber and a portion of the main water passage upstream of the main valve body, and water for draining water from the pressure water chamber. A pilot valve part for opening and closing the water drain hole, a pilot valve body of the pilot valve part is integrated with the float, and the pilot valve part opens and closes as the float moves up and down. A ball tap device, characterized in that 4. The float according to claim 1, wherein the float is composed of a plurality of container-shaped divided bodies, and the divided bodies are screwed together to form the entire float. A ball tap device, wherein the vertical height of the float can be adjusted by changing the screw connection position of the divided body.