JP2001049704A - Valve element for water faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve element for a water faucet capable of preventing a strainer for catching foreign matters contained in fluid from being clogged therewith easily. SOLUTION: This valve element for a water faucet is brought into contact with or separated from a valve seat 4 of a partition wall 2 separating a water inlet chamber 5 from a water drain chamber 6 of a water faucet 1 so as to open and close a communication hole 3. The valve element 12 fixes a guide 16 passing through the communication hole 3 to the underside of a packing 13 brought into contact with or separated from the valve seat 4, and holds a plurality of strainers 19 and 20 with having different meshes from each other on the guide 16 at intervals in vertical direction. The guide 16 holds the second strainer 20 with smaller mesh on the downstream side of the first strainer 19 with larger mesh.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve element for a faucet, which adjusts the amount of water flow by moving it forward and backward with respect to a valve seat.
An object of the present invention is to provide a valve body that prevents foreign matters contained in a fluid from adhering to a valve seat.

[0002]

2. Description of the Related Art Conventionally, as a valve element for a faucet, known as a valve element for a water faucet, in which foreign matter such as chips, sand and the like flowing into a fluid is prevented from adhering to a valve seat, water leakage or the like does not occur.
FIG. 7 of FIG. 1 (FIG. 5 of the present application) is disclosed. Referring to FIG. 5 briefly, a valve body 28 for opening and closing a valve seat 25 provided on a faucet is provided with a packing 2.
9 is provided with a strainer 30 which can be loosely inserted into the communication hole 26 of the valve seat 25, and the strainer 30 is
In the state of being loosely inserted into the inside, a gap 27 having a width of about 0.5 mm in diameter is provided between the outer peripheral surface of the strainer 30 and the inner peripheral surface of the communication hole 26.
Exists. Therefore, in this state, foreign matter having a diameter of 0.5 mm or more cannot pass through the gap 27, and is prevented from being captured by the strainer 30 and adhering to the valve seat 25.

[0003] In the above-mentioned apparatus, foreign substances of a specific size or more that cannot pass through the gap are captured by a strainer so as not to adhere to the valve seat. However, all foreign substances of a specific size or more adhere to a single strainer. However, there is a possibility that a large number of foreign substances are caught and clogged immediately, and the strainer must be frequently cleaned to remove the foreign substances, resulting in poor workability.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a valve for a water faucet which prevents a strainer for capturing foreign substances contained in a fluid from being easily clogged. To provide.

[0005]

SUMMARY OF THE INVENTION According to the present invention,
A valve body for a faucet that opens and closes a communication hole by being brought into contact with and separated from a valve seat of a partition wall that partitions a water guide chamber and a drainage chamber of the faucet, the valve body communicates with a lower portion of a packing that comes into contact with and separates from the valve seat. A guide inserted into the hole is fixed, and a plurality of strainers having different mesh widths are held on the guide at an interval above and below.

According to a second aspect of the present invention, the guide holds a second strainer having a small mesh width downstream of the first strainer having a large mesh width.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, the faucet 1 of the present invention, such as a single faucet, a mixing faucet, etc., is internally partitioned into a primary-side water guide chamber 5 and a secondary-side drainage chamber 6 by a partition wall 2. The water communication chamber 5 and the drainage chamber 6 communicate with each other through a circular communication hole 3 formed in the direction, and an annular valve seat 4 is formed at an upper end surface of the communication hole 3 so as to protrude upward. The spindle 8 is formed by screwing a male screw part 9 formed on the outer peripheral surface with a female screw part 7 formed on the inner peripheral surface of the drainage chamber 6, and the handle 1 connected to the upper end thereof.
It is mounted to be able to move up and down by one rotation operation.

A valve body 12 for opening and closing the communication hole 3 of the partition 2
Is made of synthetic resin, hard rubber, or the like. The valve shaft 14 projects upward from the axis of the packing 13, and the valve shaft 14 is inserted into the insertion hole 10 opened at the lower end of the spindle 8.
The packing 13 has a disk shape that can be seated on the upper surface of the valve seat 4, and a guide 16 is fixed below the nut 16 with a nut 15. The guide 16 is provided with a required number of slidable legs 17 protruding from the periphery of the communication hole 3 by simultaneous molding. The guide 16 allows the valve body 12 to communicate in a stable posture without causing vibration. 3 is inserted vertically. An annular fitting groove 18, 18 a is formed on the inner peripheral surface of each leg 17.
Are formed in a pair at intervals above and below, and the fitting grooves 18, 18 are formed.
The first strainer 19 and the second strainer 20 are disc-shaped and have different mesh widths.

As shown in FIGS. 3 and 4, each of the strainers 19 and 20 has a different mesh width.
The second strainer 20 on the downstream side has a smaller mesh width than the first strainer 19 on the upstream side, through which the fluid flows from. For this reason, the foreign matter contained in the fluid in the water guide chamber 5 can be removed by the respective strainers 19 and 20 held by the guide 16 when passing through the communication hole 3, and can be removed from the mesh width of the first strainer 19. Large foreign matter is captured by the mesh of the first strainer 19, passes through the mesh without being captured by the first strainer 19, and foreign matter larger than the mesh width of the second strainer 20 is captured by the mesh of the second strainer 20. .

Accordingly, when the spindle 8 is raised by operating the handle 11, the valve body 12 receives the pressure from the water guide chamber 5, so that the packing 13 separates from the valve seat 4 and opens, and the fluid is held by the guide 16. After passing through the first strainer 19 and the second strainer 20 sequentially captured, the foreign matter is supplied to the drainage chamber 6 and discharged to the outside. Then handle 1
When the spindle 8 is lowered by the operation 1, the valve body 12 is lowered together with the spindle 8, the packing 13 comes into close contact with the upper surface of the valve seat 4, and the discharge of the fluid to the outside is stopped.

As described above, in the valve element for a faucet of the present invention, foreign substances in the fluid passing through the communication hole are captured by the strainers having different mesh widths held by the guides. Therefore,
Foreign matter having a large diameter is captured by the first strainer on the upstream side, and foreign matter having a diameter smaller than the mesh of the first strainer is captured by the second strainer on the downstream side, and foreign matters having different sizes are dispersed and captured by both strainers. As a result, clogging does not occur easily, and there is no need to frequently clean the strainer.

[0012]

According to the present invention, in a valve element for a faucet which opens and closes a communication hole by being brought into contact with and separated from a valve seat of a partition wall for partitioning a water guide chamber and a drainage chamber of the faucet. Fix the guide that passes through the communication hole to the bottom of the packing that comes in contact with and separates from the seat,
Since a plurality of strainers having different mesh widths are held by the guide at intervals above and below, large-diameter foreign substances contained in the fluid are captured by the upstream strainer having a large mesh width. , Small-diameter foreign matter can be captured by a strainer on the downstream side with a small mesh width, and the foreign substance is dispersed and captured by multiple strainers to prevent early clogging and to use the faucet stably for a long time. can do.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a faucet equipped with a valve body of the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is a plan view of a first strainer.

FIG. 4 is a plan view of a second strainer.

FIG. 5 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Faucet 2 Partition wall 3 Communication hole 4 Valve seat 5 Water guide chamber 6 Drainage chamber 13 Packing 16 Guide 19 1st strainer 20 2nd strainer

Claims (2)

[Claims] 1. A valve element for a water faucet that opens and closes a communication hole by being brought into contact with and separated from a valve seat of a partition wall that partitions a water guide chamber and a drainage chamber of the water faucet. A valve for a faucet, wherein a guide inserted into the communication hole is fixed to a lower portion of the packing, and a plurality of strainers having different mesh widths are held on the guide at intervals above and below. body. 2. The valve element for a water tap according to claim 1, wherein the guide holds a second strainer having a small mesh width downstream of the first strainer having a large mesh width.