CN202273724U

CN202273724U - Bypass valve for filter

Info

Publication number: CN202273724U
Application number: CN2011203250320U
Authority: CN
Inventors: 陈文渊; 吴国庆
Original assignee: BENGBU ZHENGGU FILTER CO LTD
Current assignee: BENGBU ZHENGGU FILTER CO LTD
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-06-13
Anticipated expiration: 2021-08-31

Abstract

The utility model discloses a bypass valve for a filter. The bypass valve comprises a valve seat, wherein a convex surface is formed on the top of the valve seat and is provided with a central through hole; a valve body is arranged on the top of the valve seat; an annular groove at the lower end of the valve body is clamped to the hole wall of the central through hole on the convex surface; a diaphragm is arranged at the bottom of a valve cavity of the valve body; a gasket is fixed on the diaphragm; the lower end of a spring is fixed on an arc-shaped bulge of the gasket; and a guide rod is also connected to the gasket, is tightly adhered to the inner wall of the spring at the radial end of the spring and extends into the spring. The bypass valve has a simple structure, is easy to implement, and can reduce the influence of the radial deformation of the spring on the bypass valve for the filter, so the service life of the bypass valve for the filter is effectively prolonged.

Description

Filter cleaner is used bypass valve

Technical field

The utility model relates to the filter cleaner fitting field, is specially a kind of filter cleaner and uses bypass valve.

Background technique

Filter cleaner is installed in the middle of the motor, and it is the assembly that is made up of one or several filter component, and its effect is that filtering will get into the objectionable impurities in oil circuit or the gas circuit, to reduce the wearing and tearing of engine part.Filter cleaner is to be made up of the filter core in shell and the shell, and the filter cleaner that has also has bypass valve.The filter cleaner bypass valve inner spring of existing technology is long yielding radially service time, causes bypass valve defective.

The model utility content

The utility model purpose provides a kind of filter cleaner and uses bypass valve, to solve the problem that existing technology filter cleaner case of by-pass valve is prone to radial deformation.

In order to achieve the above object, the technological scheme that the utility model adopted is:

Filter cleaner is used bypass valve, includes valve seat, it is characterized in that: said valve seat top forms convex surface; And the valve seat convex surface has central through bore, and the valve seat top is provided with the valve body with valve pocket, and said valve body lower end sidewall is provided with circular groove; Said circular groove is connected on the valve seat convex surface central through bore hole wall, and the valve pocket of valve body bottom is equipped with diaphragm, is fixed with the pad with arc convex on the diaphragm; Also be provided with spring in the said valve pocket, said spring lower end is fixed on the arc convex of pad, and the spring upper end is replaced at valve body madial wall top; Also be connected with vertical guide rod on the said pad, said guide rod spring radially an end be close to the spring inwall and stretch in the spring.

The utility model is simple in structure, is easy to realize.Valve body is installed on the valve seat; Circular groove through valve body lower end cooperates the stable installation that can realize valve body with valve seat convex surface central through bore hole wall; The valve body inner spring receives guide rod in spring stretching radially, can reduce the influence of spring radial deformation, also plays leading role for telescopic spring simultaneously.The utility model can effectively reduce the influence of spring radial deformation to the filter cleaner bypass valve, and then has prolonged the working life of filter cleaner bypass valve.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

As shown in Figure 1.Filter cleaner is used bypass valve, includes valve seat 1, and valve body 1 top forms convex surface 2; And valve seat 1 convex surface 2 has central through bore, and valve seat 1 top is provided with the valve body 3 with valve pocket, and valve body 3 lower end sidewalls are provided with circular groove; Circular groove is connected on the valve seat 1 convex surface 2 central through bore hole walls, and the valve pocket of valve body 3 bottom is equipped with diaphragm 4, is fixed with the pad 5 with arc convex 6 on the diaphragm 4; Also be provided with spring 7 in the valve pocket, spring 7 lower ends are fixed on the arc convex 6 of pad 5, and spring 7 upper ends are replaced at valve body 3 madial wall tops; Also be connected with vertical guide rod 8 on the pad 5, guide rod 8 spring 7 radially an end be close to the spring inwall and stretch in the spring 7.

Claims

1. filter cleaner is used bypass valve, includes valve seat, it is characterized in that: said valve seat top forms convex surface; And the valve seat convex surface has central through bore, and the valve seat top is provided with the valve body with valve pocket, and said valve body lower end sidewall is provided with circular groove; Said circular groove is connected on the valve seat convex surface central through bore hole wall; The valve pocket bottom of valve body is equipped with diaphragm, is fixed with the pad with arc convex on the diaphragm, also is provided with spring in the said valve pocket; Said spring lower end is fixed on the arc convex of pad; Spring upper end is replaced at valve body madial wall top, also is connected with vertical guide rod on the said pad, said guide rod spring radially an end be close to the spring inwall and stretch in the spring.