JPS59213832A - Manipulation valve for flash valve - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating valve for remotely controlling a flush valve used as a water supply device such as a flush toilet.

Conventionally, a flash valve operating valve 1 for remotely controlling a flash valve has a structure as shown in FIG. That is, a partition wall 5 that separates the interior of the casing 2 into an inflow chamber 3 and an outflow chamber 4 is provided with a valve port 6 that communicates with both chambers. The valve rod 7 inserted into the valve port 6 is provided with a valve body 8 corresponding to the valve port 6 at its end on the inlet chamber side, and a spring is attached to urge the valve body 8 toward the valve port 6. It is biased 9. A push button portion 7a is formed at the other end of the valve stem 7. The flash valve operating valve 1 and the flash valve main body 10 are connected to each other through a connecting pipe 13 between the inflow chamber 3 and the pressure chamber 11 of the flash valve main body 10, and between the outflow chamber 4 and the discharge chamber 12 of the flash valve main body 10. is connected to the connecting pipe 14. In the flush valve operating valve 1 piped in this manner, when the push button 1a of the valve stem 7 is pressed, the valve port 6 opens and the pressure chamber 11 of the flash valve body 10 and the discharge chamber 12 are brought into communication. In the flush valve main body 10 where the internal pressure of the pressure chamber 11 has decreased, the piston valve 15 is instantly pushed up into the pressure chamber 11 by the high water pressure in the water supply chamber 16, and the valve port 18 is opened to start flushing. Next, when the push button 7a is released, the valve body 6 automatically returns to its original position and closes the valve port 6, so that the pressure chamber 11 of the flash valve main body becomes sealed.

The piston valve 15 that has risen into the pressure chamber 11 is lowered by its own weight as water gradually flows into the pressure chamber 11 through the throttle inflow path 17, and closes 18 after a predetermined time has elapsed.

However, in the conventional flush valve operation valve 1, the valve stem 7
Since the flush is maintained as long as the pressing operation on the valve stem 7 is continued, there is a drawback that if an inexperienced person continues to press the valve stem 7 for a long time, more water than necessary will be flushed out.

SUMMARY OF THE INVENTION In order to solve the above-mentioned drawbacks, the present invention aims to provide an operating valve for a flush valve that can close the valve port after a predetermined period of time has elapsed, regardless of the duration of operation.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

The second diagram (C1) is a vertical cross-sectional view showing an embodiment of the flash valve operating valve 21 according to the first invention. The outflow chamber side end of the valve stem 27 and the operating force transmission member 32 are connected via the damper joint 31 which is combined with the piston 31b, and the cylinder chamber 31a of the damper joint 31 and the inflow chamber 23 are connected to each other to form a constricted passage. 33. As shown in the hole in the figure, the inside of the casing 22 is separated into an inflow chamber 23 and an outflow chamber 24 by a partition wall 25a of a bushing 25 inserted therein. A valve port 26 communicating with both chambers 23 and 24 is provided in the valve port 26. A valve body 28 is provided at the end of a valve rod 28 inserted into the valve port 26 on the inflow chamber side.

The valve body 28 is biased by a spring 29 to the valve port 26. The tamper joint 31 is provided on the outflow chamber side of the valve stem 27.
A piston 31b is formed. The piston 31b
is a cylinder 131 formed in the operating force transmission member 32
It is slidably inserted into a. The operating force transmission member 3
2 is slidably inserted into the bush 25 and is biased by a spring 35 in the direction of arrow A as required. The valve stem 27 has an inflow chamber 23 and a cylinder chamber 31.
A throttle passage 33 (for example, a diameter of 0.5 m +
1 with a length of 10 to 45 mm).

Next, the operation of the flash valve operation valve 21 will be explained. The flash valve operating valve 21 has piping 13 connecting the inflow chamber 23 and the pressure chamber 11 of the flash valve body 10 (see FIG. 1), and piping connecting the outflow chamber 24 and the discharge chamber 12 of the flash valve body 10. 14. When the operating force transmitting member 32 is pressed in the direction of arrow B against the spring bias 35, the pressing force is transmitted to the valve stem 27 via the damper joint 31, and as shown in FIG. is moved in the direction of arrow B against the spring bias 29. As the cough valve rod 27 moves in the direction of the arrow B, the valve body 28 opens the valve port 26 and flushes the flush valve body 10 (see FIG. 1). The water filled in the cylinder chamber 1a of the damper joint 31 in the flash valve operation valve 21 generates a compressive force corresponding to the repulsion elastic force of the spring biasing force 29, so that the water is reduced to a low static pressure through the throttle passage 33. State inflow chamber 23
gradually flows out. The outflow of water from the cylinder chamber 1a causes the piston 31b to gradually enter the cylinder chamber 1a. Then, after a predetermined period of time (for example, 2 seconds) has elapsed since the start of flushing, the valve body 28 closes the valve port 26, as shown in FIG. . Next, when the pressing force of the operating force transmitting member 32 is released, the high pressure water in the inflow chamber 23 flows into the cylinder chamber 1a of the damper joint 31 through the throttle passage 33 and moves the operating force transmitting member 32 in the arrow direction. It is moved back in the A direction to return to the standby state (see second diagram).

FIG. 3 is a longitudinal cross-sectional view showing another embodiment of the flush valve operating valve 21' according to the first invention of the present invention, and the difference from the embodiment shown in FIG. 2 is that the damper joint The cylinder chamber 31'a of 31' is formed at the end of the valve stem 27', and the piston 31' is formed at the operating force transmitting member 32'.

FIGS. 4(8) to 4(C) are longitudinal cross-sectional views showing an embodiment of a flash valve operating valve 41 according to the second aspect of the present invention. The flush valve operation valve 41 differs from the first invention shown in FIG. 2 (6) in the following points. That is, the throttle passage 33' is formed so as to communicate the cylinder chamber 31a of the damper joint 31 and the outflow chamber 24. The operating force transmitting member 32 is always biased by a spring 35 in the direction of arrow A.

Next, the operation of the flash valve operation valve 41 will be explained. First, the operating force transmission member 32 is biased by the spring 3 in the direction of arrow B.
5, the pressing force is transmitted to the valve stem 27 via the damper joint 31, and the valve stem 27 is moved in the direction of arrow B against the spring bias 29, as shown in FIG. move it. As the valve stem 27 moves in the direction of arrow B, the valve body 28 opens the valve port 26 and flushes the flush valve body 10 (see FIG. 1).

The water filled in the cylinder 1a of the damper joint 31 generates a compressive force corresponding to the resilient force of the spring bias 29, so that the water gradually flows through the throttle passage 33' to the outflow chamber 24 in a low static pressure state. leaks to. The outflow of water from the cylinder chamber 1a causes the piston 31b to gradually enter the cylinder chamber 31. Then, after a predetermined period of time (for example, 2 seconds) has elapsed since the start of flushing, the valve body 28 closes the valve port 26, as shown in FIG. Next, when the pressing force of the operating force transmitting member 32 is released, the repulsive elastic force of the spring biasing force 35 urges the operating force transmitting member 32 in the direction of arrow A, and the cylinder chamber 1a of the damper joint 31
Create a low static pressure inside. Then, the residual water in the outflow chamber 24 flows into the cylinder chamber 1a in a low static pressure state through the throttle passage 33', causing the operating force transmission member 32 to retreat in the direction of arrow A, and enter the standby state (fourth (see Figure (6)).

FIG. 5 is a longitudinal cross-sectional view showing another embodiment of the flush valve operation valve 41' according to the second invention of the present invention, and the difference from the embodiment shown in FIG. 4 is that the damper joint The cylinder chamber 31'a of 31' is formed at the end of the valve stem 27', and the piston 31'b is formed at the operating force transmitting member 32'.

As described in detail above, the operating valve for a flood valve according to the present invention closes the valve port after a predetermined time has elapsed regardless of the operation duration of the operating force transmitting member, so that a person who is inexperienced in operating the operating force transmitting member can It has an excellent effect of not flushing out more water than necessary even if the operation is continued for a long time.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of a conventional flush valve operating valve.
2(8) to (C) are vertical sectional views showing an embodiment of the operating valve for a flush valve according to the first invention of the present invention, and FIG. 3 is a longitudinal sectional view showing an operating valve for a flush valve according to the first invention of the present invention. 4 to (C) are longitudinal sectional views showing an embodiment of the operating valve for a flush valve according to the second invention of the present invention, and FIG. FIG. 2 is a longitudinal cross-sectional view showing an embodiment of another aspect of the operating valve for a flush valve according to the second invention. 22... Casing 23... Incoming seedlings 24.
...Outflow chamber 25a...Partition wall 26...Valve port 2
7 (27')... Valve stem 29... Spring biased 31 (
31') Damper joint 32 Operating force transmission member 33 (33') Throttle passage 35 Spring biased patent applicant Ina Seito Co., Ltd. Representative Patent attorney Toshihiko Uchida

Claims (1)

[Claims] 1. A valve port that communicates with both chambers is provided in the partition wall that separates the inside of the casing into an inflow chamber and an outflow chamber, and a valve rod inserted through the valve port has an end portion on the inflow chamber side. In the operating valve for a flush valve, a valve body corresponding to the valve port is provided, and the valve body is biased toward the valve port, and an end portion of the valve stem on the outflow chamber side includes:
An operation for a flush valve, characterized in that an operating force transmission member is connected through a damper joint made of a combination of a cylinder chamber and a piston, and the cylinder chamber of the damper joint and the inflow chamber are communicated through a throttle passage. valve. 2. A valve port that communicates with both chambers is provided in the partition wall that separates the inside of the casing into an inflow chamber and an outflow chamber, and a valve rod inserted through the valve port has a corresponding end on the inflow chamber side. A flush valve operation valve is provided with a valve body, and the valve body is biased toward the valve port, and the valve stem has an end portion on the outflow chamber side that includes:
An operating force transmitting member is connected through a damper joint that is a combination of a cylinder chamber and a piston, and the operating force member is biased from the cylinder chamber in the direction in which the piston comes out, and the cylinder chamber of the damper joint and the outflow chamber are connected to each other. An operating valve for a flush valve, characterized in that the valve is connected through a throttle passage.