CN2888110Y

CN2888110Y - Pressure regulating valve

Info

Publication number: CN2888110Y
Application number: CN 200620101944
Authority: CN
Inventors: 薛肇江
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-21
Filing date: 2006-03-21
Publication date: 2007-04-11
Anticipated expiration: 2016-03-21

Abstract

The utility model relates to a pressure regulating valve on which fuel pump is used for overflow, which comprises a valve cover, a valve body, a valve seat, a valve core assembly, a diaphragm and a diaphragm spring, wherein the valve core assembly is connected with diaphragm, the diaphragm spring is arranged in the valve body, the valve seat is connected with the end face of the valve cover, a hole is arranged in the valve seat as a flow medium outlet, a through hole is arranged on the end face of the valve cover for entrance of flow medium, the valve cover and the valve body are riveted at diaphragm. With simple structure, the utility model is suitable for the operation and installation of the fuel pump.

Description

Pressure regulator valve

Technical field

The utility model relates to a kind of pressure regulator valve, relates in particular to the pressure regulator valve of a kind of fuel pump as overflow.

Background technique

At present, the kind of industrial pressure regulator valve is more on the market, and with structure of the present utility model and the comparatively approaching prior art of effect the patent No. is arranged is ZL01225305.7, name is called " constant pressure valve " and the patent No. is ZL98246559.9, name is called the utility model patent of " a kind of pressure maintaining valve ", its structure includes valve gap, valve seat, mangetic core assembly, diaphragm etc., but their structure is comparatively complicated, imports and exports position and appearance structure and is not suitable for using in fuel pump and installing.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure and be adapted at the pressure regulator valve that uses in the fuel pump and install.

To achieve these goals, technical solution of the present utility model is such: pressure regulator valve, comprise valve gap, valve body, valve seat, mangetic core assembly, diaphragm and diaphragm spring, mangetic core assembly is fixedlyed connected with diaphragm, diaphragm spring is arranged in the valve body, one end of diaphragm spring acts on the diaphragm, the other end contacts with the bottom surface of valve body, the sealing surface of mangetic core assembly contacts with the sealed end pressure of valve seat under the effect of diaphragm spring, valve seat is fixedlyed connected with the end face of valve gap, in valve seat, have the endoporus that is used for flowing medium outlet, on the end face of valve gap, also offer and be used for the through hole that flowing medium enters, valve gap and the valve body secure fit that presses at the diaphragm place.

The beneficial effects of the utility model are: because valve seat has the endoporus that is used for flowing medium outlet and fixedlys connected with the end face of valve gap, on the end face of valve gap, offer and be used for the through hole that flowing medium enters, valve gap and valve body, thereby the utlity model has simple in structure and are adapted at the advantage using in the fuel pump and install by the secure fit that presses at the diaphragm place.

Description of drawings

Fig. 1 is the utility model embodiment 1 a structure sectional view;

Fig. 2 is the utility model embodiment 2 a structure sectional view;

Fig. 3 is the utility model embodiment 3 a structural representation.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Shown in Fig. 1～3, pressure regulator valve, comprise valve gap 1, valve body 2, valve seat 3, mangetic core assembly 4, diaphragm 5 and diaphragm spring 6, mangetic core assembly 4 is fixedlyed connected with diaphragm 5, diaphragm spring 6 is arranged in the valve body 2, one end of diaphragm spring 6 acts on the diaphragm 5, the other end contacts with the bottom surface of valve body 2, the sealing surface of mangetic core assembly 4 contacts with the sealed end pressure of valve seat 3 under the effect of diaphragm spring 6, valve seat 3 is fixedlyed connected with the end face of valve gap 1, in valve seat 3, have the endoporus 7 that is used for the flowing medium outlet, on the end face of valve gap 1, also offer and be used for the valve gap through hole 8 that flowing medium enters, valve gap 1 and valve body 2 secure fit that presses at diaphragm 5 places, and form a delineation circle of position ring 9.As shown in Figure 1, embodiment 1 mangetic core assembly 4 comprises spool 10, gasket seal 11 and diaphragm pressing plate 12, gasket seal 11 is fixed on the spool 10, spool 10 is fixedlyed connected with diaphragm 5 by diaphragm pressing plate 12, one end of diaphragm spring 6 contacts with diaphragm pressing plate 12, also offers vent 20 on the wall thickness of valve body 2.Shown in Fig. 2～3, embodiment 2 mangetic core assembly 4 comprises cross section steel ball 13, valve core case 14, valve core spring 15 and the diaphragm pressing plate 12 as spool, cross section steel ball 13 is located in the valve core case 14, one end of valve core spring 15 withstands cross section steel ball 13, the other end withstands the bottom surface of valve core case 14, valve core case 14 is fixedlyed connected with diaphragm 5 by diaphragm pressing plate 12, and an end of diaphragm spring 5 contacts with diaphragm pressing plate 12; Also be provided with surge pipe 16 on valve body 2, surge pipe 16 is communicated with the inner chamber of valve body 2, and surge pipe 16 is connected with the pressure regulation fluid, comprises gas, liquid or vacuum, and the cracking pressure of pressure regulator valve is regulated, and this also is another advantage of the present utility model.As shown in Figure 4, embodiment 3 pressure regulator valve is housing that is provided with housing import 17 18 that is sealed and matched with valve gap 1 of suit on the outer circumferential face of valve gap 1, also is provided with filter screen 19 between housing import 17 and valve gap through hole 8, and fuel oil is done further to filter.

Claims

1, pressure regulator valve, comprise valve gap, valve body, valve seat, mangetic core assembly, diaphragm and diaphragm spring, mangetic core assembly is fixedlyed connected with diaphragm, diaphragm spring is arranged in the valve body, one end of diaphragm spring acts on the diaphragm, the other end contacts with the bottom surface of valve body, the sealing surface of mangetic core assembly contacts with the sealed end pressure of valve seat under the effect of diaphragm spring, it is characterized in that: valve seat is fixedlyed connected with the end face of valve gap, in valve seat, have the endoporus that is used for the flowing medium outlet, on the end face of valve gap, also offer and be used for the valve gap through hole that flowing medium enters, valve gap and the valve body secure fit that presses at the diaphragm place.

2, pressure regulator valve according to claim 1 is characterized in that: also be provided with surge pipe on valve body, surge pipe is communicated with the inner chamber of valve body.

3, pressure regulator valve according to claim 1 and 2, it is characterized in that: mangetic core assembly comprises spool, gasket seal and diaphragm pressing plate, gasket seal is fixed on the spool, and spool is fixedlyed connected with diaphragm by the diaphragm pressing plate, and an end of diaphragm spring contacts with the diaphragm pressing plate.

4, pressure regulator valve according to claim 1 and 2, it is characterized in that: mangetic core assembly comprises cross section steel ball, valve core case, valve core spring and the diaphragm pressing plate as spool, the cross section steel ball is located in the valve core case, one end of valve core spring withstands the cross section steel ball, the other end withstands the bottom surface of valve core case, valve core case is fixedlyed connected with diaphragm by the diaphragm pressing plate, and an end of diaphragm spring contacts with the diaphragm pressing plate.

5, pressure regulator valve according to claim 1 and 2 is characterized in that: valve gap and the valve body secure fit place that presses forms a delineation circle of position ring.

6, pressure regulator valve according to claim 1 and 2 is characterized in that: the housing that is provided with the housing import that one of suit cooperates with valve bonnet seal on the outer circumferential face of valve gap also is provided with filter screen between housing import and valve gap through hole.