JP2001280537A - Cartridge valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cartridge valve with strainer preventing improper operation of the valve proactively by mixing of foreign matter and eliminating increasing of the volume of a total unit of the fluid control valve, in the cartridge valve making design easy of the valve total unit. SOLUTION: A cylindrical strainer is integrally mounted with a cartridge valve in a strainer from the perpendicular downward or from the horizontal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge valve suitably used for facilitating the design of a fluid control valve body for a water control faucet, a urinal flushing device, a toilet flushing device and the like.

[0002]

2. Description of the Related Art Conventionally, as a cartridge valve used for facilitating the design of a fluid control valve body such as a water control faucet, a urinal cleaning device, a toilet cleaning device, and the like,
As shown in FIG. 4 and FIG. 5, there is known one configured to be inserted into and fixed to a valve body.

In this method, a cartridge valve is inserted into and fixed to a valve body for fluid control, so that the design load of a valve body design requiring know-how is greatly reduced, thereby greatly shortening the design period. Can be.

[0004]

However, in the conventional fluid control valve 1, it is necessary to separately provide a strainer having a filter function for preventing foreign matter in the fluid from entering, so that the volume of the fluid control valve 1 is correspondingly large. There was a disadvantage of becoming.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a cartridge in which even if a strainer is provided, the volume of the entire fluid control valve does not increase and the strainer itself can be easily mounted. It is to provide a valve.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a cartridge valve which is mounted on a fluid control valve body to facilitate the valve design. In the cartridge valve, a strainer having a filter function for preventing foreign substances from entering a fluid is provided. It is characterized in that it can be easily attached to the cartridge valve.

According to this structure, even if the strainer is provided, the volume of the fluid control valve does not increase, so that a compact fluid control valve can be provided.

If the strainer is formed in a cylindrical shape,
The strainer can be easily attached from below the cartridge valve.

In addition, if the strainer is formed in a cylindrical shape with a cut and can be fixed with elasticity, the strainer can be easily opened and opened from the cut portion not only vertically below the cartridge valve but also in the horizontal direction. it can.

If the strainer is made of a resin, the corrosion of the strainer can be prevented, and the frame for fixing the strainer and the strainer itself can be integrally molded.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to make the contents of the present invention easier to understand, the following description will be made based on the illustrated embodiment.

[0012]

FIG. 1 is a partial sectional view of a fluid control valve using a cartridge valve with a strainer according to an embodiment of the present invention. FIGS. 2 and 3 are views for explaining a method of attaching a strainer to the cartridge valve. FIG. 5 is a front view in which an electromagnetic valve is mounted on a cartridge valve, and FIG. 5 is a partial sectional view of a fluid control valve using a conventional cartridge valve.

As shown in FIG. 1, the fluid control valve 1 is
A cartridge valve 4 on which an electromagnetic valve 2 and a strainer 3 are mounted is inserted into a valve body 5.

FIG. 1 shows a state in which the diaphragm 6 closes the sheet portion 7 due to the pressure balance of the fluid and interrupts the flow of the fluid from the inlet 8 to the outlet 9.

Next, when the solenoid valve 2 is energized, a suction force acts on the plunger 10 to move the plunger 10 in a direction away from the diaphragm 6, so that the valve seat packing 11 integrated with the plunger 10 is also the same. To open the pilot hole 12.

As a result, the pressure in the pressure chamber 13 rapidly decreases to near the secondary pressure, so that the diaphragm 6 moves in a direction away from the sheet portion 7 due to the pressure balance, and moves from the inlet 8 to the outlet 9. Fluid starts to flow.

Here, since the strainer 3 is integrally attached to the cartridge valve 4, even if foreign matter is mixed in the fluid flowing through the inlet 8, the strainer 3
Is a filter, and it is possible to prevent a foreign substance from biting into the electromagnetic valve 2 and causing an operation failure.

FIGS. 2 and 3 are views showing a method of mounting the strainer 3 on the cartridge valve 4. FIG.

FIG. 2 is a view for explaining an arrangement in which the cylindrical strainer is mounted and fixed to the cartridge valve 4 from below vertically, and the mounting load is small.

FIG. 3 is a view for explaining a tubular strainer having an elastic cut, which is mounted and fixed to the cartridge valve 4 from the horizontal direction, and has a high degree of freedom in mounting.

The above description relates only to one embodiment of the present invention, and does not mean that the present invention is limited to only the above content. For example, the fluid control valve 1 may be a manual type instead of an electric type.

[0022]

According to the present invention, a strainer having a filter function for preventing foreign substances from entering a fluid can be easily attached to a cartridge valve which is designed to be easily mounted by mounting the valve body on a fluid control valve body. Thus, a compact fluid control valve can be provided even if a strainer is provided.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a fluid control valve using a cartridge valve with a strainer according to an embodiment of the present invention.

FIG. 2 is a diagram showing a method of attaching a cylindrical strainer to a cartridge valve.

FIG. 3 is a view showing a method of attaching a strainer having a cut to a cartridge valve.

FIG. 4 is a front view in which a solenoid valve is mounted on a conventional cartridge valve.

FIG. 5 is a partial cross-sectional view of a fluid control valve using a conventional cartridge valve.

[Explanation of symbols]

1. Fluid control valve, 2. Solenoid valve, 3. Strainer,
4 ... Cartridge valve, 5 ... Valve body, 6 ... Diaphragm, 7 ... Seat part, 8 ... Inlet, 9 ... Outlet, 10
... plunger, 11 ... valve seat packing, 12 ... pilot hole, 13 ... pressure chamber

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H066 AA01 BA38 3H106 DA07 DA13 DA23 DA35 DB02 DB12 DB23 DB32 DC02 DC17 DD03 EE42 GC29 KK07 KK09

Claims (4)

[Claims] 1. A cartridge valve which is used by being mounted on a fluid control valve body, wherein a strainer having a filter function for preventing foreign matter from entering a fluid is integrally formed. 2. The cartridge valve according to claim 1, wherein the strainer is formed in a cylindrical shape. 3. The cartridge valve according to claim 1, wherein the strainer is formed in a cylindrical shape with a cut, and is provided so as to be elastically fixable. 4. The cartridge valve according to claim 3, wherein said strainer is made of an elastic resin.