JPH0434036B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] 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.

[Conventional technology]

Conventionally, a flush valve and a valve for remotely controlling the flush valve are as shown in FIG. 6, for example. This conventional technology is based on the
This is disclosed in Japanese Patent No. 59-213832. That is, an inner case 5 having a partition wall 3 and a valve port 4 is attached to the outer case 2 of the operation valve 1, and the outer case 2
The interior is divided into an inflow chamber 6 and an outflow chamber 7. A spool 10 having a valve body 8 and a piston 9 is disposed at the valve port 4, and a spring 10 is normally installed so that the valve body 8 closes the valve port 4 in the inflow chamber 6.
It is energized with 1. Further, the cylinder chamber 13 of the push button operating body 12 is slidably inserted into the open end side of the inner case 5, and the piston 9 of the spool 10 is slidably inserted into the cylinder chamber 13, and the seal 1 is slidably inserted into the cylinder chamber 13.
4 in a watertight manner. 15 is a pop-out prevention plate for preventing the push-button operating body 12 from protruding;
7. The cylinder chamber 13 and the inflow chamber 6 communicate with each other through a throttle passage 18 bored through the spool 10.

Thus, the inflow chamber 6 of the operation valve 1 is connected to the pressure chamber 22 of the flash valve main body 21 via the connecting pipe 20, and the outflow chamber 7 is connected to the discharge chamber of the flash valve main body 21 via the connecting pipe 23. Connected to 24. 25 is a water supply pipe, 26 is a piston valve built into the flash valve main body 21, and 27 and 28 are small holes that communicate the primary side of the water supply and the pressure chamber 22.

In the conventional flash valve main body 21 and flash valve operating valve 1 having such a configuration,
Now, assume that the push button operating body 12 is pressed in the direction of arrow A in the figure in order to clean the toilet bowl. The push button operation body 12 presses the spool 10 to the right in the figure through water in the cylinder chamber 13, and pushes the valve body 8 into the valve port 4.
to move away from For this reason, the inflow chamber 6 and the outflow chamber 7
are in communication via the valve port 4, water flows from the pressure chamber 22 to the discharge chamber 24, and the pressure within the pressure chamber 22 is reduced. Then, the piston valve 26 moves upward in FIG. 7 under the urging force of the water supply pressure, and opens the valve port 29. By opening the valve port 29, cleaning water flows from the water supply pipe 25 to the discharge chamber 24 through the valve port 29, and flushing is started.
The flush water further flows to a toilet bowl (not shown) to clean the toilet bowl.

[Problems to be Solved by the Invention] By the way, in the flush valve main body 21 and the operating valve 1 as described above, the flush amount (the amount of cleaning water discharged by the flush) is different from the operating valve 1.
Although it is limited by the time from opening to closing (flash time) and water supply pressure, each flush valve has its own characteristics due to dimensional errors during manufacturing, etc. This causes variations in the amount of flash. The flashing time of the operation valve 1 depends on the extent to which water flows between the cylinder chamber 13 and the inflow chamber 6, that is, the opening cross-sectional area of the throttle passage 18 and the opposing wall surface 2a of the outer case 2 from the tip 10a of the spool 10. most affected by distance. Further, factors that have little effect on the flashing time include the frictional resistance between the packing 14 attached to the spool 10 and the inner surface of the cylinder chamber 13, the biasing force of the springs 11 and 17, and the pushing distance of the push button operating body 12.

However, in the case of the conventional operating valve 1, it is not possible to adjust the flash time once it is assembled, and even if there is some variation in the flash time of each valve 1, it is not possible to adjust the flash time as it is. was the current situation. Therefore, there is a flush valve that discharges a large amount of flush water, which has the disadvantage that the total amount of water used increases significantly.

The operation form of the push button operating body 12 can be roughly divided into two types: a normal operation in which the button is pressed for about one second, and a continuous operation in which the button is pressed continuously. The conventional flash valve has the drawback that the selection of the operating mode changes the flash time and the amount of flash. This will be explained in more detail in connection with FIG. If the operation is continued, the operation of the valve body 8 will go from the diagram a to the diagram b in FIG. It flows out into the inflow chamber 6. Then, the spool 10 moves to the left in FIG. 7 by the amount of water that has flowed out, and eventually the valve body 8 comes to be seated on the valve port 4 as shown in FIG. 7 c. Thereafter, as described above with reference to FIG. 6, the pressure chamber 22 becomes equal to the water supply pressure, completing the flushing. and,
When you release your hand from the push button operating body 12, the piston valve 26
is closed, water is supplied to the cylinder chamber 13 from the small holes 27 and 28, and as shown in FIG.
As shown in , the operating body 12 returns to its original state.

On the other hand, in the case of normal operation, as in the case of the continuous operation shown in FIG. 7, the valve body 8 moves from view a to view b in FIG. 7, and flushing is started. At the same time, the water in the cylinder chamber 13 gradually flows out into the inflow chamber 6, and the valve body 8 of the spool 10 seats on the valve port 4 to close it off, as shown in FIG. 7c. From then on, the small hole 27 of the piston valve 26
Water is supplied to the cylinder chamber 13 through 28 and 28, and after returning to the original state, the pressure in the pressure chamber 22 begins to rise and eventually completes the flushing, as shown in FIG. 7d. Become. Therefore, in this normal operation, the cylinder chamber 13
In some cases, the flushing time was longer than in the case of the continuous operation, due to the time required for water to be replenished. In other words, in the case of continuous operation, the pressure in the pressure chamber 22 starts to rise immediately after the valve port 4 is closed, so the flash time is affected only on the flash valve body 21 side, and is shorter than in the case of normal operation. Become. However, conventionally,
There is no adjustment mechanism for the flushing time between normal operation and continuous operation, and the flushing time remains the same as the initial setting, resulting in a large amount of wasted cleaning water being discharged, resulting in a total The disadvantage was that the amount of washing water required increased.

Furthermore, in the prior art, the diameter of the throttle passage 18 formed in the valve body 8 was very small, so there was a drawback that it took time to process. As is clear from the foregoing, the throttle passage 18 allows the valve body 8 to be moved to the left side in FIG. This is to close the valve port 4 by moving it and complete the flushing.

[Purpose of the invention]

The present invention improves and eliminates the above-mentioned problems of conventional operation valves, and allows the flushing time and flushing amount to be easily adjusted, ensuring constant cleaning regardless of the operating mode of the push button. It is an object of the present invention to provide an operating valve for a flush valve that can obtain a discharge flow rate of water.

[Means for solving problems]

Means of the present invention for solving the above problems are as follows:
In the first aspect of the invention, there is provided a valve body having a valve port formed in a partition wall between an inflow chamber and an outflow chamber to communicate the two chambers, a valve body disposed on the inflow chamber side, and a piston section disposed on the outflow chamber side. a spool whose connecting portion is inserted through the valve port; a throttle passage bored through the spool; a cylinder chamber fitted into the outflow chamber side of the valve body; In the operating valve for a flash valve, which comprises a push-button operating body in which a piston part is fitted into the cylinder chamber, a pin member is disposed in a loose state in the throttle passage, and the throttle passage is formed at the end on the cylinder chamber side. A flash adjustment member having a cutout surface for maintaining communication is screwed on, and the end of the piston material on the inflow chamber side protrudes from the tip of the valve body, so that the tip of the pin material and the inflow chamber face each other when water is stopped. The amount of flashing is changed by changing the distance from the wall.

Further, in the second aspect of the present invention, the first aspect of the invention is as follows.
The valve body of the invention is formed of an outer case and an inner case having a partition wall with a valve port and screwed into the outer case, and a nut is fixed to the inflow chamber side within the throttle passage. By attaching it through the pin material and adjusting the mounting position relationship between the inner case and outer case, the distance between the tip of the pin material and the opposing wall of the inflow chamber when water is stopped can be changed, and the amount of flash can be changed. I try to do that.

[Effect]

As is clear in the embodiments of FIGS. 1 and 2, the screwing position of the flash adjustment member 48 attached to the throttle passage 46 of the spool 39 is adjusted, or as is clear in the embodiments of FIGS. 3 and 6. By adjusting the mounting positional relationship of the inner case 33 with respect to the outer case 32, the distance L between the tip of the pin member 49 and the opposing wall surface 34a of the inflow chamber 34 can be changed, and the flashing time can be changed. It is possible to adjust the discharge flow rate of the wash water by adjusting the flow rate.

The configuration of the present invention will be explained below based on the embodiments shown in the drawings.

〔Example〕

FIG. 1 is a longitudinal sectional view of a flush valve operating valve 30 according to a first embodiment of the present invention. As shown in the figure, the operating valve 30 includes a valve body 31, an outer case 32, and an inner case 33 screwed into the outer case 32. The outer case 32 is divided into an inflow chamber 34 and an outflow chamber 35 by an inner case 33, and both chambers 34 and 35 are communicated with each other through a valve port 36 bored in the inner case 33. . The valve port 36 has a valve body 37 and a piston 38.
A spool 39 is arranged. The spool 39 is biased by a spring 40 so that the valve body 37 always closes the valve port 36 in the inflow chamber 34 . A push button operating body 42 having a cylinder chamber 41 is slidably inserted into the open end side of the inner case 33, and a return spring 43
is biased toward the left in FIG. A piston 38 of a spool 39 is slidably fitted into the cylinder chamber 41. 4
4 is a gasket for maintaining watertightness between the inner case 33 and the push button operating body 42, and 45 is a gasket for maintaining watertightness between the inner wall surface of the cylinder chamber 41 and the piston 38. On the operation side (left side in FIG. 1) of the push button operation body 42, there is a hole 52 for adjusting the flash time that communicates with the cylinder chamber 41.
is bored, and is normally closed with a stopper 53. 54 is a gasket for sealing.

As shown in FIG. 1, the spool 39 has an inflow chamber 3.
4 and the cylinder chamber 41.
is drilled through the cylinder chamber 4.
On the first side, a flash adjustment member 48 having a notch surface 47 extending over the entire length in the axial direction on the circumferential surface of the screw member is screwed. Further, a pin member 49 is mounted in the throttle passage 46 , one end of which is mounted in the recessed portion of the flash adjustment member 48 , and the other end of which protrudes beyond the end of the valve body 37 . The pin material 49 is for adjusting the passage area of the throttle passage 46. If the cross-sectional area of the throttle passage 46 is adjusted by attaching the pin material 49 in this manner, the diameter of the throttle passage 46 can be set to a large size for machining, and the machining of the throttle passage 46 can be performed easily. It's easy. Note that the inflow chamber 34 is connected to the pressure chamber 28 of the flush valve main body 21 shown in FIG. The connection is the same as in the conventional case.

Next, the operation mode of the operating valve 30 according to the first embodiment configured as described above will be explained based on the case where the push button operating body 42 is pushed to the right in the figure from the state shown in FIG. 1 to start flushing the toilet bowl. I will explain. That is,
The push button operating body 42 presses the spool 39 to the right in the figure through the water in the cylinder chamber 41, and moves the valve body 37 away from the valve port 36. Therefore, the inflow chamber 34 and the outflow chamber 35 communicate with each other via the valve port 36, water flows from the pressure chamber 22 to the discharge chamber 24 (both shown in FIG. 7), and the pressure in the pressure chamber 22 decreases. Then, the piston valve 26 moves upward in FIG. 6 under the urging force of the water supply pressure, and the valve port 2
Open 9. By opening the valve port 29, cleaning water flows from the water supply pipe 25 to the discharge chamber 24 through the valve port 29, and flushing is started. The flushing water further flows to a toilet bowl (not shown) to clean the toilet bowl. The basic operation of this flash is the same as in the conventional case.

By the way, in the push button operation body 42, the tip of the pin member 49 is in contact with the opposing wall surface 34a of the inflow chamber 34 in a state in which flushing is started. In this embodiment, by changing the distance L between the tip of the pin member 49 and the wall surface 34a facing it, the flashing time when the push button operating body 42 is continuously pressed (continuous operation) is adjusted. I have to. That is, when the push button operating body 42 is continuously operated, the push button operating body 42 and the spool 39 operate as shown in FIGS. 2A to 2D, and start flushing.
Figure a is the state before operation, Figure b is the state where flashing has started, Figure c is the state where flashing has been completed, and Figure d is the state after releasing the push button operating body 42 and returning to the state before operation. This shows that. When the push-button operation body 42 is pushed in from the state shown in FIG. a to start flushing as shown in FIG. By changing the distance L between the tip of the pin 49 before the start of operation and the wall surface 34a facing it, it is possible to change It is possible to vary the amount of water remaining (volume V). When the distance L is increased, the volume V is increased, and when the distance L is decreased, the volume V is decreased. Therefore, by changing the distance L, the water in the cylinder chamber 42 flows out from the state shown in FIG. The time t from when the body 37 is seated to when the valve port 36 is closed changes. After the valve port 36 is closed, the pressure in the pressure chamber 22 shown in FIG. 7 begins to rise, and the flushing is completed. Therefore, as described above, the time t from the start of flushing shown in FIG. b until the valve port 36 is closed as shown in FIG.
Changing , after all, means changing the flash time. In reality, the distance L of the pin material 49 can be determined by removing the stopper 53 attached to the push button operating body 42 and inserting a tool such as a screwdriver through the adjustment hole 52 to determine the threaded state of the flash adjustment member 48 screwed into the throttle passage 46. You can change it by adjusting.

On the other hand, when a normal operation is performed in which the push button operating body 42 is pressed for about 1 second, the states shown in FIGS. 2A to 2C are the same as in the case of a continuous operation. In the case of this normal operation, the pressure in the pressure chamber 22 shown in FIG. 7 begins to rise and the flushing is completed only after returning from the state shown in FIG. c to the state shown in FIG. d. The operation mode for this normal operation is as follows:
This is the same as the conventional case.

Therefore, by changing the distance L of the pin material 49 and changing the flash time A in the case of continuous operation as described above, the relationship with the flash time B in the case of normal operation can be changed to A>B, A=B. , A<B. this is,
It is better to press the push button operating body 42 for about 1 second in a normal operation, as shown in FIG.
This is because the flashing time is longer than when pressing 2 (A<B), and as mentioned above, by changing the distance L of the pin material 49, the flashing time A in the case of continuous operation can be adjusted. By increasing
It becomes possible to obtain the relationships A=B and A>B.

In addition, changing the distance L means changing the distance D of the valve body 37 from the valve port 36 at the time of starting flushing, as shown in Figure b of Figure 2, which changes the state from the state shown in Figure 2 to the state shown in Figure c. It is possible to change the return time of the valve body 37. This can be changed in the same way for both normal operation and continued operation. Therefore, in this embodiment, it is possible to freely adjust both the flush times A and B, and it is possible to reduce the total amount of wasted cleaning water used.

3 and 4 relate to a second embodiment of the present invention. In this second embodiment, a pin member 49 to which a nut 49a is fixed is provided in the throttle passage 46 on the inflow chamber 34 side, passing through the pin member 49. Note that the throttle passage 46 connects the inlet chamber 34 and the cylinder chamber 41 via a groove (not shown) formed in the mounting surface of the nut 49a.
I am trying to communicate with them. Then, the attachment relationship of the inner case 33 to the outer case 32 is adjusted through the screw portion 59 to change the distance L between the tip of the pin member 49 and the wall surface 34a. By changing this distance L, the relationship between the flash time A in normal operation and the flash time B in continuous operation can be changed to A<B, A=B,
It is possible to make the relationship A>B. Then,
In this case, the inner and outer cases 32, 3 after the screw adjustment
It is necessary to fix the relationship in point 3. In this embodiment, the inner and outer cases 32,
The mounting relationship of 33 is fixed. That is, the opening end side outer peripheral surface 33a of the inner case 33 is formed into a hexagonal shape, and the hexagonal hole 56 of the fixing plate 55 is fitted into this, and the fixing plate 55 is fixed to the outer case 32 with screws 57 or the like. By the way, in order to finely adjust the screwing state of the inner and outer cases 32 and 33,
The mounting angle of the fixing plate 55 relative to the outer case 32 must also be able to be changed according to the degree of adjustment. In this embodiment, the screw hole 5 of the fixed plate 55 is
The angle between 8 and 58 is 20 degrees, allowing for fine adjustment of 20 degrees. The other configurations and effects are the same as those of the first embodiment, so their explanations will be omitted here.

FIG. 5 shows a third embodiment of the invention. In this embodiment, an appropriate number of distances 61, 61 are installed between the stepped portions of the inner and outer cases 32, 33 to adjust the attachment relationship between the two, and in this state, the two cases 32 , 33. Thereby, the distance L between the tip of the pin member 49 and the wall surface 34a facing it is changed, and the flashing time is adjusted. The other configurations, functions, and effects of this embodiment are the same as those of the first and second embodiments, and their explanations will be omitted here.

Note that the present invention is not limited to the above-described embodiments, and can be modified as appropriate. for example,
The operating valve 30 may include two operating valves, a foot-operated valve and a manual operating valve, for one flash valve. In this case, both operation valve 3
What is necessary is to adjust the flash time between 0 and 30, the normal operation of each operation valve 30, and the flash time in the case of continuous operation.

[Effects of the Invention] As explained above, in the first invention of the present application, the distance between the pin member and the wall facing the pin member is adjusted by screwing the pin member of the operating valve. Therefore, when using the flash valve, it is possible to adjust the flash time in the case of continuous operation in which the push button operating body is continuously pressed. Therefore, it is possible to freely change the relationship between the flush time compared to the normal operation in which the push button operating body is pressed once and then immediately released, and a constant discharge flow rate of cleaning water is always obtained regardless of the push button operating form. be able to. Therefore, it is possible to reduce the total amount of washing water used, and it is possible to achieve economical and effective use of resources.

Furthermore, in the second invention of the present application, it is possible to obtain the same effect as the above-mentioned first invention by adjusting the axial attachment positional relationship of the inner and outer cases forming the valve body. .

In addition, in the first and second inventions of the present application, by using the pin material, it is possible to previously process the diameter of the throttle passage to be large, and manufacturing is easy.

[Brief explanation of drawings]

1 and 2 are related to the first embodiment of the present invention, FIG. 1 is a longitudinal sectional view showing the entire operation valve, and figures a to d in FIG. 2 are push buttons at the time of flushing. 3 and 4 are schematic cross-sectional views for explaining the operation mode of the operating body and the spool, and FIG. 3 is a longitudinal cross-sectional view showing the entire operating valve. Fig. 4 is a perspective view of the fixing plate, Fig. 5 is a perspective view of the fixing plate.
The figure is a longitudinal cross-sectional view of an operating valve showing a third embodiment of the present invention, FIGS. 6 and 7 show the prior art, and FIG. 6 shows the entire operating valve and flush valve main body. The longitudinal cross-sectional views and FIGS. 7A to 7D are schematic cross-sectional views for explaining the operation mode of the push button operating body and the spool in the case of continuous operation. 34...Inflow chamber, 35...Outflow chamber, 36...Valve port, 37...Valve body, 38...Piston, 39...
Spool, 46... throttle passage, 41... cylinder chamber, 42... push button operating body, 30... operating valve, 4
9... Pin material, 47... Flush adjustment member, 3
4a...Opposing wall surface, L...Distance.

Claims (1)

[Claims] 1. Both chambers 34,
A valve body 31 in which a valve port 36 communicating with the valve body 35 is bored.
and a valve body 37 arranged on the inflow chamber 34 side and an outflow chamber 35.
A spool 39 is connected to a piston portion 38 disposed on the side, and the connecting portion thereof is inserted through the valve port 36.
A cylinder chamber 41 is fitted into the throttle passage 46 bored through the spool 39 and the outflow chamber 35 side in the valve body 31, and the piston portion 38 of the spool 39 is inserted into the cylinder chamber 41. In the flush valve operation valve 30 consisting of the fitted push button operation body 42, a pin member 49 is disposed loosely in the throttle passage 46, and the cylinder chamber 41
A flash adjustment member 48 having a cutout surface 47 for keeping the throttle passage 46 in communication with the side end thereof is screwed on, and the end of the pin member 49 on the inlet chamber 34 side protrudes from the tip of the valve body 37. , pin material 49 when water is stopped
An operating valve for a flush valve characterized in that the flush amount is changed by changing the distance L between the tip and the opposing wall surface 34a of the inflow chamber 34. 2 Both chambers 34,
A valve body 31 in which a valve port 36 communicating with the valve body 35 is bored.
and a valve body 37 arranged on the inflow chamber 34 side and an outflow chamber 35.
A spool 39 is connected to a piston portion 38 disposed on the side, and the connecting portion thereof is inserted through the valve port 36.
A cylinder chamber 41 is fitted into the throttle passage 46 bored through the spool 39 and the outflow chamber 35 side in the valve body 31, and the piston portion 38 of the spool 39 is inserted into the cylinder chamber 41. In a flash valve operating valve 30 comprising a fitted push button operating body 42, the valve body 31 is screwed into the outer case 32, and has an outer case 32 and a partition wall with a valve port 36. A pin member 49 with a nut 49a fixed to the inflow chamber 34 side is inserted into the throttle passage 46 to adjust the mounting positional relationship between the inner case 33 and the outer case 32. The operating valve for a flush valve is characterized in that the distance L between the tip of the pin member 49 and the opposing wall surface 34a of the inflow chamber 34 when water is cut off is thereby changed, thereby changing the flush amount. 3. The operating valve for a flush valve according to claim 2, wherein a distance 61 for flush adjustment is arranged between the outer case 32 and the inner case 33.