JPH0234296Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a flush valve for a urinal, and particularly to a flush valve that allows a deodorizing agent to be mixed into discharged water.

[Prior Art] Urinals become dirty with continued use and emit odors during use. To prevent this, flush valves that allow water to flow during use have often been used. However, conventional flush valves simply flush water and are not effective in eliminating odors, so it is customary to separately hang a deodorizer inside the toilet. However, this type of deodorant constantly emits a chemical odor even when the urinal is not in use, and is consumed through sublimation or evaporation, making it uneconomical and also giving off a strong chemical odor even outside the urinal. There was a problem.

[Purpose of the invention] The present invention was developed against the background of the above, and the purpose of the present invention is to provide a flush valve that can mix a predetermined amount of deodorizer into discharged water. .

[Structure of the invention] The gist of the invention, which was made to achieve such an object, is to form a pressure chamber behind the main valve provided in the valve body, and to connect the pressure chamber to the back of the main valve through a relief valve. In a flush valve that can communicate with the outlet side and allow water to flow or stop due to the pressure difference between the inside and outside of the pressure chamber, a deodorizer storage container is connected to the pressure chamber, and a predetermined amount of deodorizer is supplied to the pressure chamber. The deodorizer is provided with a deodorizer supply mechanism that can supply and mix the deodorizer with the water in the pressure chamber.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

In FIG. 1, reference numeral 10 denotes a container containing a liquid deodorizer 12, and a deodorizer supply mechanism 14 is provided below the opening of the container 10. The other parts are constructed in the same way as a normal flush valve. The parts similar to normal flush valves are well known, so we will briefly explain them.

That is, the main valve 2 is located between the inlet 16 and the outlet 18 of the valve body 15, which are to be connected to the water supply source.
0 is slidably provided, a pressure chamber 24 is formed between the main valve 20 and the cover 22, and a protruding valve part 26 having a notched recess on the outer periphery is screwed to the lower end of the main valve 20. The protruding valve part 26 is slidably fitted into a hole formed in the partition wall 28, and can communicate or shut off the inlet 16 and the outlet 18 by moving the main valve 20 in the vertical direction. has been done. A relief valve 30 is disposed inside the main valve 20 and is normally pressed by a compression coil spring 32 to cut off communication between the pressure chamber 24 and the discharge port 18 side. Tsute relief valve 3
0 is inclined so that the pressure chamber 24 and the discharge port 18 side communicate with each other. 36, 38, 40 are Patsukin. In addition, the main valve 20 is provided with a pore 42, and water flowing in from the inlet 16 in the direction of arrow A enters the pressure chamber 24 through the pore 42, increases the pressure in the pressure chamber 24, and causes the main valve 20 to rise. Push down, inlet 1
6 and the discharge port 18 are cut off. FIG. 1 shows this state. Note that 44 is a main valve that stops the flow of water.

On the other hand, a valve piston 48 is slidably fitted into a cylindrical protrusion 46 integrally connected to the cover 22, as shown in FIGS. A valve member 52 as a check valve having a relief valve 50 is screwed onto the container 10 so that the deodorizing agent 12 in the container 10 flows downward through the hole 49 but is prevented from flowing in the opposite direction. Note that the valve member 52
is provided with a protrusion 54 with a pointed tip, and the container 1
0 is screwed into the cylindrical protrusion 46 to break the container membrane. valve piston 48
A recess 56 is formed inside and a leaf valve 58 is provided on the lower end side, so that the deodorizer accumulated in the recess 56 flows only downward through the supply hole 60 and does not flow in the opposite direction. ing. valve piston 4
8 is biased downward by a compression coil spring 62 and is brought into contact with the stepped portion 64 of the cylindrical projection 46 .

When the pressure in the pressure chamber 24 decreases, the valve piston 48 is pushed downward by the spring 62 as shown in FIG. 2, and the leaf valve 58 is closed by the pressure in the pressure chamber 24. be done.
At this time, the deodorizer 1 accumulated below the leaf valve 58
2 is delivered to the pressure chamber 24 by the movement of the valve piston 48, and the valve piston 4
8, the valve piston 48 and the valve member 52
Since the space between the leaf valve 50 and
is opened and the deodorizer 12 is accumulated in the recess 56.
When the pressure inside the pressure chamber 24 rises, FIG.
As shown in the figure, the valve piston 48 is pushed upward against the biasing force of the spring 62. At this time, the deodorizer in the recess 56 flows out below the leaf valve 58, but when the pressure in the pressure chamber 24 increases, the leaf valve 58
8,50 is closed. Note that when the valve piston 48 of the main valve 20 is further pushed up, the hydraulic pressure in the recess 56 increases and the leaf valve 58 is opened. As a result, a predetermined amount of the liquid deodorizer passes through the supply hole 60 of the valve piston 48 and further passes through the hole 60 of the cylindrical protrusion 46.
6, it is sent into the pressure chamber 24, and the pressure chamber 2
It will mix with the water in 4. In this way, the valve piston 48, the valve member 52, the spring 62, and the cylindrical protrusion 46 constitute a deodorizing agent supply mechanism. Note that 68 is a cap of the container 10, which has an air hole.

In the embodiment configured as above,
When the push button 34 is pressed, the relief valve 3
0 is tilted, the pressure chamber 24 is opened, and the pressure inside the pressure chamber 24 decreases. When the pressure in the pressure chamber decreases, water pressure pushes up the main valve 20 as shown in FIG. 4, and water is discharged to the outlet 18 side through the gap between the concave part on the outer periphery of the protruding valve part 26 and the partition wall 28. be done. At this time, the water in the pressure chamber 24 mixed with the deodorizing agent mixes with the discharged water, and the effect of deodorizing the urinal to which the flush valve is to be installed is obtained. In this case, since the pressure within the pressure chamber 24 decreases, the valve piston 48 and the leaf valve 50 are in the state shown in FIG. 2 as described above, and the deodorizer is stored in the recess 56.

Then, when the pressing of the push button 34 is stopped, the pressure chamber 24 and the outlet 18 side of the relief valve 30 are cut off by the pressing force of the spring 32, and at the same time water passes through the pore 42 and the pressure is increased. room 24
The pressure inside the pressure chamber 24 increases. When the pressure increases, the main valve 20 is pushed down, and as shown in FIG. 1, the inlet 16 and the outlet 18 are cut off, and water discharge (water flow) is stopped. In this case, since the pressure within the pressure chamber 24 increases, the valve piston 48 and the leaf valve 50 are in the state shown in FIG. 3 as described above, and the deodorizer is mixed into the water within the pressure chamber 24. In addition,
When the push button 34 is pressed as described above, the main valve 20 moves upward (upper part of FIG. 1) and the water passage is closed, and then the main valve 20 moves downward and closes the water passage. is closed, but the time during which the water flow passage is open, that is, the time during which water is flowing through the flush valve, is determined by the time during which water flows into the pressure chamber 24 through the pore 42. It is something. Further, when the main valve 20 moves upward, the pore 42 is narrowed as shown in FIG.

As described above, according to this embodiment, a predetermined amount of deodorizing agent can be mixed into the discharged water and released each time the urinal is used, which is highly effective in removing bad odors from the urinal. Furthermore, since the deodorizer is contained in the deodorizer container 10, the pressure chamber 24, and the cover 22, the deodorizer is not constantly wasted due to volatilization, evaporation, etc. Furthermore, it is possible to prevent the chemical odor of the deodorizer from constantly lingering.

In the embodiment, the leaf valve 50 is integrally formed with the valve member 52 and the valve piston 48, respectively.
It is also possible to provide an independent valve body instead of 58 and configure it so that it can be seated on and taken off from each valve seat.

Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment in any way, and it goes without saying that it can be implemented in various forms without departing from the gist of the present invention. It is.

[Effects of the invention] As detailed above, according to the invention, a predetermined amount of deodorizer is mixed with the water in the pressure chamber by the deodorizer supply mechanism, and the deodorizer can be mixed into the discharged water. Therefore, it is possible to accurately remove bad odors when the urinal is used, and the deodorizer is not wasted at times other than when the urinal is used.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a flush valve including one embodiment of the present invention, Figs. 2 and 3 are sectional views of essential parts of the same embodiment, and Fig. 4 is a sectional view showing one operating state of the embodiment. It is a diagram. 10... Container, 15... Valve body, 20... Main valve, 24... Pressure chamber, 30... Relief valve.

Claims (1)

[Claims for Utility Model Registration] 1. A pressure chamber is formed behind the main valve provided in the valve body, and the pressure chamber can be communicated with the outlet side via a relief valve, and water can be passed through due to the pressure difference between the inside and outside of the pressure chamber. ,
In the flash valve that makes it possible to stop water,
A flush valve characterized in that a deodorizer storage container is connected to the pressure chamber, and a deodorizer supply mechanism is provided which can supply a predetermined amount of deodorizer toward the pressure chamber and mix it with the water in the pressure chamber. 2. The deodorizer supply mechanism includes a check valve that allows the deodorizer to pass in only one direction from the deodorant storage container toward the pressure chamber, and a spring device that is slidably provided between the check valve and the pressure chamber. and a valve piston biased toward the pressure chamber side by 2. A flush valve according to claim 1, which is a utility model registration device, and is capable of supplying a deodorizing agent to the pressure chamber by changing the pressure inside the pressure chamber.