JPH094749A - Coupling structure between support lever for ball tap and float - Google Patents

Abstract

PURPOSE: To vary the mounting position of a float through a simple work by a method wherein a support lever to open and close the valve element of a ball tap and the mounting shaft of the float are intercoupled through serration fit-in and further the tip side of the support lever is fitted between guides for adjusting a helical height. CONSTITUTION: When the mounting shaft 24 of a float 8 is forcibly rotated around an axis line and rotated over the crest of a serration hole formed in a cylinder body 22 at the tip of a support lever, the mounting shaft 24 of the float 8 is guided by a guide 26 for adjusting a helical height, a relative position relation with the helical cylinder body 22 at the tip of the support lever is changed. Namely, the vertical height position of the mounting shaft 24 of the float 8 based on the support lever 20 is variable and a water level of flushing water stored in a tank 2 for flushing a closet is variable. In this case, a slit formed on the tip side of the support lever 20 expands the spiral cylinder body 22 when the mounting shaft 24 is forcibly rotated around an axis and works to promote rotation of the mounting shaft 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention In a ball tap provided in a toilet bowl cleaning tank or the like, the float mounting position can be changed by a simple operation to adjust the water level of the stored water in the tank. The present invention relates to a structure for connecting a support lever of a ball tap and a float.

[0002]

2. Description of the Related Art Usually, a toilet bowl cleaning tank is equipped with a ball tap equipped with a float and a float valve connected to an operating handle via a chain or the like. By pulling it up, the cleaning water in the tank is supplied to the toilet side to perform toilet cleaning. At the same time, the float that interlocks with the decrease in the cleaning water in the tank opens the piston valve of the ball tap to supply the cleaning water into the tank.

FIG. 4 is a vertical sectional view showing a conventional ball tap 1. As shown in the figure, in the ball tap 1, a ball tap body 3 is attached to an upper portion of a side wall on the inner surface side of a toilet bowl cleaning tank 2, and a piston valve is attached to a valve seat 5 disposed in the middle of a flow passage 4. The body 6 is fitted and mounted so as to be slidable in the vertical direction in FIG. The piston valve body 6 closes the flow path 4 by coming into contact with the valve seat 5, and opens the flow path 4 by moving away from the valve seat 5.

As for the vertical movement of the piston valve body 6, the support lever 7 of the piston valve body 6 whose one end is pivotally supported by the ball tap body 3 and the support lever of the float 8 which moves up and down depending on the water level in the tank. Link 9 and 10 and 1
By connecting with 1, it is linked to the water level in the tank.

Therefore, when the toilet bowl cleaning is started and the water level in the tank drops, the float 8 and its supporting lever 9
Via the support lever 7 of the piston valve body 6, the piston valve body 6
Then, the supply of cleaning water by tap water into the tank is started through the flow path 4 and the water discharge port 12.

Further, after a predetermined amount of flush water flows out to the toilet side to lower the water level in the tank and the float valve (not shown) is automatically closed, the water level in the tank starts to recover. Due to the recovery of the water level, the piston valve body 6 is pushed upward through the float 8 and its support lever 9 and the support lever 7 of the piston valve body 6, and when the water level recovers to the reference water level position, the piston valve The body 6 sits on the valve seat 5 and becomes blocked. That is, the supply of wash water with tap water into the tank is stopped.

In FIG. 4, reference numeral 13 is a connecting pipe communicating with a hand-washing water discharge pipe (not shown), and 14 is screwed to a screw portion 15 of the ball tap main body 3 to attach the ball tap main body 3 to the toilet bowl tank 2 Is a mounting nut for fixing to the side wall of No. 1, and 16 is a cap nut for mounting the water supply supply pipe screwed to the screw portion 15. A nut 17 for adjusting the length of the connecting portion is attached in the middle of a link 11 connecting the support lever 7 of the piston valve body 6 and the support lever 9 of the float 8.

[0008]

By the way, when the water supply source pressure is changed, or when the support levers 7 and 9 and the link 10 are used.
The water level of the flush water stored in the toilet flush tank 3 when the water is completely returned to the flush state changes due to variations in the dimensions of the respective members such as 11, and the float 8 and variations in the mounting position. If this is left as it is, the amount of wasted cleaning water increases, or conversely, the amount of cleaning water becomes insufficient, causing poor cleaning.

Therefore, conventionally, when there is variation in mounting as described above, the nut 17 is adjusted to change the dimension between the support lever 7 and the support lever 9 of the link 11 so that the float 8 moves up and down. By adjusting the height position, the water level of the wash water stored in the tank is always at the predetermined height position. However, such water level adjustment has a drawback that it requires a complicated mechanism having many parts and is difficult to operate.

[0010]

SUMMARY OF THE INVENTION The present invention has been made by improving the prior art in view of the above-mentioned problems, and provides a connecting structure for a ball tap and a float, in which the mounting position of the float can be changed by a simple operation. It is intended to be provided.

The means adopted by the present invention in order to solve the above-mentioned problem is to form a serration hole in the vertical direction at the tip of a support lever for opening and closing the valve body of the pole tap, and to attach the outer periphery of the float mounting shaft. A serration in the axial direction is formed on the surface, and a spiral height adjusting guide is provided on the outer peripheral side of the serration, and the mounting shaft of the float is inserted into the serration hole to fit the serration and the spiral shape is formed. Is a structure for connecting a support lever of a ball tap and a float, characterized in that the upper and lower surfaces of the tip of the support lever are fitted between the height adjusting guides.

[0012]

According to the present invention, the float is directly attached to the tip end side of the support lever for opening and closing the valve body of the ball tap by utilizing serration fitting. This serration fitting forms a serration hole in the vertical direction on the tip side of the support lever to form serrations in the axial direction on the outer peripheral surface of the mounting shaft of the float, and at the same time, on the outer peripheral side of this serration, a spiral high A guide for adjustment is provided, and the mounting shaft of the float is inserted into the serration hole of the support lever so that both are fitted by serration.

As a result, no slip occurs between the support lever and the mounting shaft of the float. The upper and lower end surfaces of the support lever on the front end side are fitted between the spiral height adjusting guides of the mounting shaft. Therefore, in this fitted state, if the mounting shaft of the float is rotated to forcibly change the serration fitting, the positional relationship between the tip of the support lever and the height adjusting guide moves along the spiral guide. As a result, it is possible to change the vertical height position of the float. In other words, it is possible to adjust the water level of the stored water in the toilet bowl by simply rotating the mounting shaft of the float.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the embodiments shown in the drawings. The same reference numerals as in the conventional case are the same members. 1 to 3 relate to an embodiment of the present invention. FIG. 1 is a vertical sectional view of a ball tap 27, and FIG. 2 shows a fitting relationship between a tip of a support lever 20 and a mounting shaft 24 of a float 8. FIG. 3 is a front view, and FIG. 3 is a perspective view showing the tip of the support lever 20.

As shown in the figure, in this embodiment,
The water discharge port 12 of the ball tap 27 is extended downward, and the water discharge pipe 18 is further connected. A slit 19 for preventing the backflow of water into the ball tap 27 is formed between the water discharge port 12 and the water discharge pipe 18. By providing the slit 19, the backflow water flowing from the water discharge pipe 18 to the water discharge port 12 side returns to the inside of the tank through the slit 19.

Further, the support lever 20 for moving the piston valve body 6 up and down in this embodiment is formed with a rectangular frame portion 21 in the middle thereof, and the water discharge pipe 18 is inserted in a loose state. . Further, a spiral cylindrical body 22 is formed on the tip end side of the support lever 20, and serrations 23 a are engraved on the inner peripheral surface side of the cylindrical body 22 to form serration holes 23. In addition, a slit 20 a for enlarging the diameter of the serration hole 23 is formed in the connecting portion of the spiral cylinder 22 and the support lever 20.

On the other hand, serrations 25 in the axial direction are formed on the outer peripheral surface of the mounting shaft 24 of the float 8.
Further, a spiral height adjusting guide 26 is provided on the outer peripheral side of the serration 25. The lead angle between the height adjusting guide 26 and the spiral cylinder 22 at the tip of the support lever is made to coincide with each other.

With such a mounting structure of the support lever 20 and the float 8, the mounting shaft 24 of the float 8 is forcibly rotated about its axis, and the cylindrical body 22 at the tip of the support lever is provided.
When the ridge of the serration hole 23 formed in the above is passed over, the mounting shaft 24 of the float 8 is guided by the spiral height adjusting guide 26 and the spiral cylindrical body 22 at the tip of the support lever.
The relative positional relationship with will change. That is, the vertical position of the mounting shaft 24 of the float 8 with respect to the support lever 20 can be changed, and the water level of the wash water stored in the toilet bowl 2 can be changed.

In this case, the slit 20a provided on the tip side of the support lever 20 expands the diameter of the spiral cylindrical body 22 when the mounting shaft 24 is forcibly rotated around the axis. It serves to assist the rotation of the mounting shaft 24.
It should be noted that the rotation of the mounting shaft 24 about the axis can be extremely easily performed by gripping the main body portion of the float 8. This is because the outer diameter of the body portion of the float 8 is much larger than the outer diameter of the mounting shaft 24.

By the way, as shown in FIG. 1, in this embodiment, the ball tap body 3 is attached to the toilet bowl cleaning tank 2.
A tapered concave portion 28 is formed on the left end surface side of the nut 14 used when the nut 14 is attached to the side wall. The tapered recess 28 is for allowing a part of the cap nut 16 to enter. As a result, in the state after installation,
The background portion including the screw portion 15 of the ball tap 27 is not directly exposed to the outside, and it is not necessary to plate the entire ball tap 27.

The present invention is not limited to the above-mentioned embodiments, but can be modified appropriately. For example, the piston valve body 6 of the ball tap 27 may be of a diaphragm type. In this case, the support lever 24
According to the vertical position of the float 8, the passage communicating with the pressure chamber on the secondary side of the diaphragm valve may be opened or closed to the atmosphere.

[0022]

As is apparent from the above description, according to the present invention, the support lever for opening and closing the valve body of the ball tap and the mounting shaft of the float are connected by serration fitting, and further, the spiral shape. Since the tip side of the support lever is fitted between the height adjustment guides, the height adjustment can be performed simply by overcoming the serration fitting state and rotating the float mounting shaft around its axis. It is possible to change the vertical height position of the float along the guide, and it is easy to adjust the water level of the flush water stored in the toilet bowl.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of a ball tap according to an embodiment of the present invention.

FIG. 2 is a front view showing the relationship between the support lever of the ball tap and the mounting shaft of the float according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a spiral cylinder at the tip of a support lever according to an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view showing a mounting relationship between a support lever and a float of a conventional ball tap.

[Explanation of symbols]

2 ... Toilet bowl cleaning tank 3 ... Ball tap main body 4 ... Flow path 5 ... Valve seat 6 ... Piston valve body 8 ... Float 20 ... Piston valve body support lever 22 ... Spiral cylinder 23 ... Serration hole 23a ... Serration 24 ... Mounting Shaft 25 ... Serration 26 ... Spiral height adjustment guide

Claims (1)

[Claims] 1. A vertical serration hole is formed at the tip of a support lever that opens and closes a valve element of a ball tap to form a serration in the axial direction on the outer peripheral surface of a mounting shaft of the float, and the outer peripheral side of the serration. A spiral height adjustment guide is provided on the, the mounting shaft of the float is inserted into the serration hole for serration fitting, and the top and bottom surfaces of the tip of the support lever are fitted between the spiral height adjustment guide. The connecting structure of the support lever of the ball tap and the float, which has been characterized.