JP2001003411A - Valve element for faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve element for a faucet capable of preventing generation of water leak, and extraordinarily extending a service life of the faucet by improving tightness of the valve element to a valve seat. SOLUTION: In a valve element 12 for a faucet 1 for opening/closing a communication hole 3 in a partition wall 2 by getting in contact with/apart from a valve seat 4 protruded from a flat part in the partition wall 2 parting a water intruducing chamber 5 in the faucet 1 from a drain chamber 6, the valve element 12 forms a circular protruded part at a bottom surface of a packing 13 which gets in contact with/apart from the valve seat 4, and in stopping water, the bottom surface of the packing 13 is tightly applied to the valve seat 4, while the protruded part is tightly applied to the flat part on a circumferential surface of the valve seat 4.

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 water faucet, which adjusts the flow rate of water by moving the handle to and from a valve seat by operating the handle.

[0002]

2. Description of the Related Art As shown in FIG. 3, when a handle 21 is operated in a water-stopping direction, a spindle 22 moves to a lower portion, and a valve body 23 accommodated in a lower portion of the spindle 22 is operated.
When the handle 21 is operated in the water discharge direction, the packing 2
2 moves to the upper part, and the packing 24 of the valve body 23 and the faucet 20
Of the valve seat 25 is opened, and water is discharged from the discharge port 26 to the outside.

In the case of the above, when the handle is rotated more than necessary to stop the water, the flat packing strongly presses against the valve seat, and the valve body at the time of crimping is deformed outward. The packing was easily deformed and worn due to repeated pressure bonding, and water was easily leaked. Also, if such water leakage is left, the valve seat will be damaged, and it will not be possible to stop water even if the handle is rotated to the water stop position only by replacing the packing.

[0004]

The problem to be solved by the present invention is to improve the adhesion of the valve body to the valve seat to prevent the occurrence of water leakage and to greatly extend the life of the faucet. A valve element for a stopper is provided.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a faucet for opening / closing a communication hole of a partition wall by contacting / separating a valve seat protruding from a flat portion of a partition wall for partitioning a water guide chamber and a drainage chamber of the faucet. In the valve body, the valve body forms an annular projection on the bottom surface of the packing that comes into contact with and separates from the valve seat, and when water is stopped, the bottom surface of the packing serves as a valve seat,
The projecting part is brought into close contact with a flat part of the peripheral surface of the valve seat.

[0006]

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 2. The water guide chamber 5 and the drainage chamber 6 communicate with each other through a circular communication hole 3 formed in the vertical direction at the portion 2a, and an annular valve seat 4 is formed around the communication hole 3 so as to protrude upward. The spindle 8 is formed by screwing a male screw portion 9 formed on the outer peripheral surface into a female screw portion 7 formed coaxially with the communication hole 3 on the inner peripheral surface of the drainage chamber 6, and rotating the handle 11 connected to the upper end. It is mounted to move up and down freely.

A valve body 12 for opening and closing the communication hole 3 of the partition 2
The valve shaft 14 protrudes upward from the axis of the packing 13 mounted on the lower surface, and the valve shaft 14 is inserted into the insertion hole 10 opened in the axial direction from the lower end surface of the spindle 8. The packing 13 is made of an elastic material such as rubber, and can be seated on the upper surface of the valve seat 4 as shown in FIG. 2, and only the periphery is projected annularly on the bottom surface 13a to cover the valve seat 4 when water is stopped. By integrally forming the protruding portion 13b, the bottom surface 13a is seated on the valve seat 4 when water is stopped, and the protruding portion 13b is seated on the flat portion 2a around the valve seat 4 so that the packing 1
Numeral 3 is a double water stop to improve the adhesion between the packing 13 and the valve seat 4.

Accordingly, when the spindle 8 is raised by operating the handle 11, the valve body 12 receives the pressurized water from the water guide chamber 5, so that the packing 13 separates from the valve seat 4 to open the valve, and the water communicates with the communication hole. 3 and is supplied to the drainage chamber 6 and discharged to the outside. Next, when the spindle 8 is lowered by operating the handle 11, the valve body 12 is lowered together with the spindle 8, the bottom surface 13 a of the packing 13 is in close contact with the upper surface of the valve seat 4, and the projecting portion 13 b protruded in an annular shape is the valve seat 4. Flat part 2a on the periphery of
Even if the packing 13 or the valve seat 4 is worn and the water cannot be stopped by the bottom surface 13a of the packing 13 and the valve seat 4, the protrusion 13b is in close contact with the flat portion 2a and double-stops water. Thus, the occurrence of water leakage can be reliably prevented.

[0009]

According to the present invention, a valve element for a faucet which opens and closes a communication hole of a partition wall by coming into contact with and separating from a valve seat protruding from a flat portion of a partition wall which partitions a water guide chamber and a drainage chamber of the faucet. In the valve body, an annular protrusion is formed on the bottom surface of the packing that comes into contact with and separates from the valve seat, and the bottom surface of the packing is brought into close contact with the valve seat when water is stopped, and the protrusion is brought into close contact with the flat portion of the valve seat peripheral surface. Therefore, even if the bottom surface of the packing is deformed or worn, or the valve seat is damaged, the protruding part of the packing is in close contact with the flat part. Can be used stably.

The faucet valve of the present invention can greatly extend the life of the faucet by a simple change as compared with the conventional one, only by forming a projection on the bottom surface of the packing.

[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 an explanatory diagram of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Faucet 2 Partition wall 2a Flat part 3 Communication hole 4 Valve seat 5 Water guide room 6 Drainage room 12 Valve 13 Packing 13a Bottom surface 13b Projection

Claims (1)

[Claims] 1. A valve element for a water faucet, which opens and closes a communication hole of a partition wall by coming into contact with and separating from a valve seat protruding from a flat portion of a partition wall that partitions a water guide chamber and a drainage chamber of the faucet. The water faucet is characterized in that an annular projection is formed on the bottom surface of the packing that comes into contact with and separates from the valve seat, and when the water is stopped, the bottom surface of the packing is in close contact with the valve seat and the projection is in close contact with the flat portion of the valve seat peripheral surface. Valve body.