CN202338667U

CN202338667U - One-way valve

Info

Publication number: CN202338667U
Application number: CN2011205140452U
Authority: CN
Inventors: 薛肇江
Original assignee: WENZHOU ACHR ELECTRIC MACHINERY CO Ltd
Current assignee: WENZHOU ACHR ELECTRIC MACHINERY CO Ltd
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2012-07-18
Anticipated expiration: 2021-12-06

Abstract

The utility model relates to a one-way valve, comprising a diaphragm, a diaphragm pressing ring and a valve seat, wherein the diaphragm is provided with an inner round piece, an outer ring and a pull rib for connecting the inner round piece and the outer ring; an inner round piece is used for sealing; the outer ring is fixed on the valve seat by the diaphragm pressing ring; and the pull rib is elastic, limits the inner round piece to move only in a certain range, and simultaneously can enable the inner round piece to return. The one-way valve has the beneficial effects that since the opening and closing movement of the diaphragm is controlled by the pull rib, the diaphragm can be made to be thinner, and the matching between the inner round piece of the diaphragm and a boss sealing surface of a liquid inlet at the bottom surface of a liquid storage barrel is better, so that the one-way valve has the advantages of good sealing effect and reliability.

Description

A kind of one-way valve

Technical field

The utility model relates to a kind of valve, relates in particular to the one-way valve in a kind of vehicle fuel system.

Background technique

At present, the kind of industrial one-way valve is more on the market, with the structure of the utility model and the comparatively approaching existing technology of effect mushroom diaphragm one-way valve and dull and stereotyped diaphragm one-way valve is arranged; The structure of wherein dull and stereotyped diaphragm one-way valve comprises diaphragm and diaphragm cover cap; Diaphragm places the diaphragm cover cap, and diaphragm moves up and down in the diaphragm cover cap, reaches the function of opening and closing; This diaphragm is an integrated type; Thickness is thicker, moves up and down to occur the jam phenomenon easily, has that sealing effect is bad, poor reliability gets shortcoming.

The model utility content

The purpose of the utility model is the deficiency that overcomes existing technology, and the one-way valve of a kind of sealing effect and good reliability is provided.

To achieve these goals, the technical solution of the utility model is such: a kind of one-way valve comprises diaphragm, diaphragm trim ring and valve seat; The lacing wire that described diaphragm is made as interior disk, outer ring and connects interior disk and outer ring; Interior disk is used for sealing, and the outer ring is fixed on the valve seat through the diaphragm trim ring, and lacing wire has elasticity; Disk is only movable in certain scope in the restriction, and disk resets in can making simultaneously.

The beneficial effect of the utility model is: because the active receiving lacing wire control of diaphragm when opening and closing; It is thinner that the thickness of diaphragm can be done; The interior disk of diaphragm cooperates more docile with the boss sealing surface of stock solution tube bottom surface liquid entering hole, thereby has the advantage of sealing effect and good reliability.

Description of drawings

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

Fig. 2 is the plan view of the utility model Fig. 1;

Fig. 3 is the utility model embodiment 1 a scheme of installation;

Fig. 4 is the plan view of the utility model Fig. 3;

Fig. 5 is the utility model embodiment 2 a structure sectional view;

Fig. 6 is the plan view of the utility model Fig. 5;

Fig. 7 is the utility model embodiment 2 a scheme of installation;

Fig. 8 is the plan view of the utility model Fig. 7.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Shown in Fig. 1～4, a kind of one-way valve of embodiment 1 comprises diaphragm 1, diaphragm trim ring 2 and valve seat 3; The lacing wire 6 that described diaphragm 1 is made as interior disk 4, outer ring 5 and connects interior disk 4 and outer ring 5; Interior disk 4 is used for sealing, and outer ring 5 is fixed on the valve seat 3 through diaphragm trim ring 2, and lacing wire 6 has elasticity; 4 of disks are movable in certain scope in the restriction, and disk 4 resets in can making simultaneously.

Described lacing wire 6 is provided with three that are uniformly distributed with, and every lacing wire is fixedly connected another place that rear curved extends to outer ring 5 from one of interior disk 4 and is fixedly connected with the outer ring.

Described diaphragm 1 is processed for resilient oil resistant plastics or rubber, and preferably fluorine rubber is processed, and described diaphragm trim ring 2 is processed for metal, and preferably stainless steel is processed.

Shown in Fig. 5～8, a kind of one-way valve of embodiment 2, a side end face of described outer ring 5 is laid with several projections 7, is complementary with it, on diaphragm trim ring 2, is provided with several through holes, and outer ring 5 snaps in through hole through projection 7 and is fixedly connected with diaphragm trim ring 2.All the other structures are identical with embodiment 1, no longer repeat here.

Shown in the scheme of installation of Fig. 3 and 7, one-way valve is anchored in the stock solution tube 8 through diaphragm trim ring 2, and there is the formation sealing surface of a boss and one-way valve diaphragm 1 at the liquid entering hole place of stock solution tube 8 bottom surface valve seats 3; During work; The stock solution tube 8 outside hydraulic couplings of holding are higher than internal hydraulic pressure, thereby open diaphragm 1, and the entering of outside appearance liquid is also filled stock solution tube 8; When inside and outside liquid level pressure reaches balance; Diaphragm 1 resets under the effect of hydrostatic pressure, closes the liquid entering hole of stock solution tube 8 and forms sealing, keeps stock solution tube 8 liquid levels not descend.

Claims

1. one-way valve; Comprise diaphragm, diaphragm trim ring and valve seat, it is characterized in that: the lacing wire that described diaphragm is made as interior disk, outer ring and connects interior disk and outer ring, interior disk are used for sealing; The outer ring is fixed on the valve seat through the diaphragm trim ring; Lacing wire has elasticity, and disk is only movable in certain scope in the restriction, and disk resets in can making simultaneously.

2. a kind of one-way valve according to claim 1 is characterized in that: described lacing wire is provided with three that are uniformly distributed with, and every lacing wire is fixedly connected another place that rear curved extends to the outer ring from one of interior disk and is fixedly connected with the outer ring.

3. a kind of one-way valve according to claim 1 is characterized in that: described diaphragm is that resilient oil resistant plastics or rubber are processed, and described diaphragm trim ring is that metal is processed.

4. according to claim 1 or 2 or 3 described a kind of one-way valves; It is characterized in that: a side end face of described outer ring is laid with several projections; Be complementary with it, on the diaphragm trim ring, be provided with several through holes, the outer ring snaps in through hole through projection and is fixedly connected with the diaphragm trim ring.