CN2418319Y

CN2418319Y - Valve

Info

Publication number: CN2418319Y
Application number: CN 00208582
Authority: CN
Inventors: 王石柱; 陈宾
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-17
Filing date: 2000-04-17
Publication date: 2001-02-07
Anticipated expiration: 2010-04-17

Abstract

The utility model relates to a valve. The utility model comprises a valve body, a valve core, a turning rod of the valve core and a handle, wherein, the position of the valve core in a fluid medium passage of the valve body is provided with a convex elastic soft membrane; the flexible soft membrane and the fluid medium passage are combine into a whole; the head end of the valve core is supported in the position of the convex elastic flexible soft membrane. Because of the complete isolation of the valve core and fluid media, leakage can not be caused to eroded and damage the valve body, the valve core and a base of a handle turning rod; therefore, the utility model has the advantages of long service life and favorable sealing effect.

Description

A kind of valve

The utility model relates to a kind of valve.

Present valve, it generally is size by the displacement control fluid passage of a spool in valve body, spool directly contacts with flowing medium, and spool is prone to phenomenons such as burn into gets rusty, and especially has the slit between spool and the valve body, communicate between fluid passage and the swing handle seat, the sealing of employing closure member uses the certain hour slit to increase, and closure member can wear and tear, fluid easily overflows from this slit and enters in the swing handle seat or water clock, influences the working life of valve.

The purpose of this utility model provides a kind of long service life, and the valve that sealing effect is good is isolated between the spool of this valve and the flowing medium fully.

The utility model comprises valve body, spool, spool swing arm and handle, it is characterized in that the interior spool place of fluid medium channel of valve body is provided with the elastomeric flexible barrier film of projection, this soft barrier film and fluid medium channel are combined as a whole, and described spool head end peaks at the elastomeric flexible barrier film place of projection.

Preferably be provided with one section bushing pipe in the above-mentioned fluid medium channel, the elastomeric flexible barrier film of described projection is located on this bushing pipe.

Preferably be provided with soft backing plate on the relative fluid medium channel tube wall of elastomeric flexible barrier film of the utility model and projection.

Isolate fully between spool of the present utility model and the flowing medium, can not cause seepage and corrosion and damage valve body, spool and handle swing arm pedestal, thereby have long service life, the advantage that sealing effect is good.

Below in conjunction with accompanying drawing the utility model is described.

Fig. 1 is the structural representation of a most preferred embodiment of the utility model.

Fig. 2 is the figure cross-sectional view.

The utility model comprises valve body (6), spool (3), spool swing arm (2) and handle (1), spool place in the fluid medium channel of valve body is provided with the elastomeric flexible barrier film (8) of projection, material that this soft barrier film employing elasticity is good such as rubber material are made and are combined as a whole with fluid medium channel, and described spool head end peaks at the elastomeric flexible barrier film place of projection.Preferably be provided with one section bushing pipe (5) in the above-mentioned fluid medium channel, this lining pipe adopts toughness and all bigger material such as rubber or the plastic production of intensity, the elastomeric flexible barrier film of described projection is located on this bushing pipe, preferably is provided with soft backing plate (7) on the fluid medium channel tube wall relative with the elastomeric flexible barrier film of projection.

Embodiment 1: present embodiment comprises valve body, spool, spool swing arm, handle, spool place in the fluid medium channel of valve body is provided with the elastomeric flexible barrier film of projection, this soft barrier film is directly connected on the fluid medium channel tube wall of valve body, and the fluid medium channel tube wall relative with the elastomeric flexible barrier film of projection is provided with soft backing plate.

Embodiment 2: compare with embodiment 1, not being both of present embodiment is provided with bushing pipe in the fluid medium channel, and the elastomeric flexible barrier film is located on the bushing pipe, and the bushing pipe two ends are with fixing with joint (4).

Claims

1, a kind of valve, comprise valve body, spool, spool swing arm and handle, it is characterized in that the interior spool place of fluid medium channel of valve body is provided with the elastomeric flexible barrier film of projection, this soft barrier film and fluid medium channel are combined as a whole, and described spool head end peaks at the elastomeric flexible barrier film place of projection.

2, valve as claimed in claim 1 is characterized in that being provided with in the described fluid medium channel one section bushing pipe, and the elastomeric flexible barrier film of described projection is located on this bushing pipe.

3, valve as claimed in claim 1 or 2 is characterized in that the fluid medium channel tube wall relative with the elastomeric flexible barrier film of projection is provided with soft backing plate.