JP2003253724A - Flush-valve operating section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flush-valve operating section being smoothly operated without catching a push button even when any place of the push button is pushed and surely transmitting force to a push bar in a flush valve in which the lift of a piston valve section is started by operating the push bar by the push button. <P>SOLUTION: Openings are formed to the outer periphery of the connecting section of the push button and a guide and the inside diameter section of the opening hole of a box nut, and the degree of freedom of the inclination of the push button is increased by forming a smooth R to the external section of the opening hole of the box nut, thus solving the above problem. The abrasion of the inside diameter of the box nut and the guide is reduced by introducing the push-button guide manufactured of a stainless steel plate having excellent slidability between the box nut and the guide, and the looseness of the push button as one of the factors of a catch into the opening hole of the box nut for the push button can be inhibited. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flash valve operating section used in flush toilets and the like.

[0002]

2. Description of the Related Art Among conventional push-button flash valves, there is a push-button flash valve having a large diameter, as shown in FIG. By pressing this push button and operating the push rod that works in conjunction with the push button, the piston valve is raised in the flush valve body, and the primary side water passage and the secondary side water passage are connected to supply flush water to the toilet bowl. It is designed to do.

[0003]

However, in the conventional push button type flash valve, the push button is easy to push largely, but when the portion other than the center of the push button is pushed, the push button tilts. Then, the tilted push button comes into contact with the opening hole of the cap nut, gets caught in the middle of the operation, and stops pushing the push button without sufficiently pushing the push rod. As a result, sufficient washing water may not be obtained, and the toilet bowl may not be washed sufficiently. Therefore, it is always necessary to press the center of the push button. In addition, the sliding of the cap nut and the guide causes wear and creates a gap between the cap nut and the guide, which causes the interlocking pushbuttons to rattle up and down. This is one of the causes of the push button getting caught in the nut opening. Therefore, in the present invention, in order to solve the above-mentioned problems, a flash valve operating portion that smoothly operates without being caught in the opening portion of the cap nut regardless of which position of the push button is pressed, and which reliably transmits the force to the push rod is provided. It is provided.

[0004]

In the first invention, the push button is connected to the guide through the opening hole of the cap nut, and by pushing the push button, the guide moves inside the cap nut. In flash valves designed to activate the push rod to open the relief valve and interlock with the operation to raise the piston valve part, the outer circumference of the connecting part of the push button and the guide and the inner diameter part of the opening hole of the cap nut There is provided a flash valve operating part characterized in that a gap is provided in the flash valve operating part.

Thus, no matter which position of the push button is pushed, the push nut is not caught in the opening hole of the cap nut, operates smoothly, and the force can be reliably transmitted to the push rod.

According to a second aspect of the present invention, there is provided a flush valve operating portion according to claim 1, wherein the outer end portion of the opening hole of the cap nut is provided with a radius.

As a result, the degree of freedom of inclination of the push button is increased, and the push button can be operated smoothly.

According to a third aspect of the present invention, the flash valve operating portion according to claim 1 or 2, wherein a push button guide made of a stainless steel plate having good slidability is inserted between the cap nut and the guide. I will provide a.

This improves the slidability of the guide inscribed in the cap nut and reduces the wear of the guide interlocking with the cap nut and the push button, so that the push button is caught in the cap nut opening hole. It is possible to suppress the rattling of the push button, which has become a problem.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will be described in more detail below with reference to FIG. First, the overall structure of the main push button type flash valve will be described. A flush valve body 12 has a valve seat packing 9 assembled on the seat surface, and a piston valve 11 is mounted on the valve seat packing 9. By moving the piston valve 11 up and down, flush water is passed to the toilet bowl. Water and water are stopped.

Next, the operating state of the push button operating portion will be briefly described with reference to FIG. When the push button 1 is pressed to operate the guide 2 and the push rod 4, the push rod 4 moves to the left and pushes up the relief valve 8a while tilting the relief valve 8a, and also tilting the relief valve 8b to separate it from the valve seat packing 14 and press the pressure chamber 17 The accumulated water is discharged through the valve opening 15 to the outlet 1
6 and the pressure in the pressure chamber 17 becomes lower than the pressure of water in the inflow port 18 portion. Therefore, the piston valve 11
Is pushed up by the water pressure at the inflow port 18 and the valve port 10
To release the wash water. The push button 1 after the operation is pushed back by the spring 6 incorporated in the push rod guide portion 7 to return to the original position.

At this time, except the center of the push button 1 is pushed,
When the push button 1 is operated in a tilted state, in the conventional product shown in FIG. 3, the push button 1b and the inner portion of the cap nut 3b come into contact with each other, so that the push button 1b is caught and the push rod 4b is not sufficiently pushed. Will stop working. As a result, sufficient washing water may not be obtained, and the toilet bowl may not be washed sufficiently. Therefore, it is always necessary to press the center of the push button 1b. Also, the cap nut 3b and the guide 2b are worn by sliding, and a gap is created between the cap nut 3b and the guide 2b, which causes rattling, so that the interlocking push button 1b may rattle up and down. That is also one of the factors that the push button is caught in the opening hole of the cap nut.

In the present embodiment, as shown in FIG. 2, the push button 1a is tilted and operated by providing a gap 13 between the outer periphery of the connecting portion of the push button 1a and the guide 2 and the inner diameter portion of the opening hole of the cap nut 3a. Also in this case, the cap nut 3a operates smoothly without being caught, and the force is reliably transmitted to the push rod 4a. Also, at the outer end of the opening hole of the cap nut 3b,
By providing the gentle radius 3c, the degree of freedom of inclination of the push button 1b is increased, and the push button 1b can be operated smoothly. Further, by inserting a push button guide 5 made of a stainless steel plate having good slidability between the cap nut 3a and the guide 2, the cap nut 3
It is possible to reduce the wear of the a and the guide 2, and to prevent the push button 1a from rattling, which is one of the factors that cause the push button 1a to be caught in the opening hole of the cap nut 3a.

[0014]

As described above, according to the present invention, by providing a gap between the outer periphery of the connecting portion between the push button and the guide and the inner diameter portion of the opening hole of the cap nut, the push button is not caught at any position. It operates smoothly and can reliably transmit force to the push rod. Further, by providing a gentle radius on the outer portion of the cap nut opening hole, the degree of freedom of inclination of the push button is increased, and the push button can be operated more smoothly. In addition, by inserting a push button guide made of stainless steel plate with good slidability between the cap nut and the guide, wear of the inner diameter of the cap nut and the guide is reduced, and the push button is inserted into the cap nut opening hole. It is possible to prevent the push button from rattling, which is one of the causes of catching.

[Brief description of drawings]

FIG. 1 shows a flash valve operating unit according to an embodiment of the present invention.

FIG. 2 is a view showing a push button operation unit when the push button is operated in a tilted state in the flash valve operation unit according to the embodiment of the present invention.

FIG. 3 is a view showing a push button operating portion of a conventional flash valve operating portion when the push button is operated in a tilted state.

[Explanation of symbols]

1: Push button 2: Guide 3: Cap nut 4: Push rod 5: Push button guide 6: Spring 7: Push bar guide 8: Relief valve 9: Valve seat packing 10: valve opening 11: Piston valve 12: Flash valve body 13: Gap 14: Valve seat packing 15: valve opening 16: Outlet 17: Pressure chamber 18: Inlet

Claims (3)

[Claims] 1. A push button is connected to a guide through an opening hole of a cap nut, and when the push button is pressed, the guide moves inside the cap nut to operate a push rod to open a relief valve. In a flash valve that is designed to activate the upward movement of the piston valve part in conjunction with the operation, a gap is provided between the outer periphery of the connecting part of the push button and the guide part and the inner diameter part of the opening hole of the cap nut. Flash valve operating part. 2. The flush valve operating portion according to claim 1, wherein a radius is provided at an outer end portion of the inner diameter of the cap nut. 3. The flash valve operating portion according to claim 1, wherein a push button guide made of a stainless steel plate having good slidability is inserted between the cap nut and the guide.