CN204664509U

CN204664509U - Non-return valve

Info

Publication number: CN204664509U
Application number: CN201520312719.9U
Authority: CN
Inventors: 谢力民; 钱青江; 何荣林; 黄家溧
Original assignee: Wenzhou Zhaoyue Management Consultants Co Ltd
Current assignee: Wenzhou Zhaoyue Management Consultants Co Ltd
Priority date: 2015-05-15
Filing date: 2015-05-15
Publication date: 2015-09-23
Anticipated expiration: 2025-05-15

Abstract

In order to solve deficiency of the prior art, the utility model designs a kind of non-return valve especially, comprise valve body, flap and valve seat, seal ring is designed with between valve body and flap, described flap comprises flap body and flap shaft, flap shaft and flap body are for being threaded, flap shaft is metal hollow pipe, flap shaft is designed with position structure near flap body end, this position structure is metal cirque, be set in the threaded end of flap shaft near flap body, the internal diameter of this metal cirque is consistent with flap shaft threaded end outside dimension, flap shaft is arranged with spring, spring one end is tightened by the position structure metal cirque in flap shaft on flap in flap shaft, the other end and the valve seat of spring offset, described valve seat and valve body are connected and fixed, this safety check flap shaft and flap body are not integral structure designs, and product structure is simple, and cost hinge structure traditional product decreases.

Description

Non-return valve

Technical field

The utility model relates to valve technology field, particularly a kind of non-return valve.

Background technique

Safety check relies on medium itself to flow and automatic open and close flap, be used for the valve preventing medium from flowing backwards, belong to a kind of automatic valve, its Main Function be prevent medium flow backwards, prevent pump and drive motor reversion, and the releasing of vessel media, general and the flap body of safety check flap shaft of the prior art designs for integral type, entirety is solid construction, product is in processing relative complex, the product cost of raw material is higher, is necessary very much to do to improve for this part-structure for current market with keen competition.

Model utility content

In order to solve deficiency of the prior art, the utility model designs a kind of non-return valve especially, and this safety check flap shaft and flap body are not integral structure designs, and product structure is simple, and cost hinge structure traditional product decreases.

The technical solution of the utility model is: non-return valve, comprise valve body, flap and valve seat, seal ring is designed with between valve body and flap, described flap comprises flap body and flap shaft, flap shaft and flap body are for being threaded, flap shaft is metal hollow pipe, flap shaft is designed with position structure near flap body end, this position structure is metal cirque, be set in the threaded end of flap shaft near flap body, the internal diameter of this metal cirque is consistent with flap shaft threaded end outside dimension, flap shaft is arranged with spring, spring one end is tightened by the position structure metal cirque in flap shaft on flap in flap shaft, the other end and the valve seat of spring offset, described valve seat and valve body are connected and fixed.

The beneficial effects of the utility model are that this non-return valve is by adopting said structure, flap body and flap shaft are for being flexibly connected, the position structure metal cirque that flap shaft designs is for the fixed installation of spring, flap shaft is hollow-core construction simultaneously, the flap of the relative integral structure design of production of product is simplified, add that flap shaft is the relative traditional solid infrastructure product of hollow tubular, raw material obtain certain saving, the product value of this structural design obtains consumers in general and uses and promote.

Accompanying drawing explanation

Fig. 1 is the structural representation of this model utility safety check;

Fig. 2 is this model utility valve flap structure schematic diagram;

In figure: 1, valve body; 2, flap body; 3, flap shaft; 4, valve seat; 5, spring; 6, metal cirque.

Embodiment

As described in Figure 1, non-return valve, comprise valve body 1, flap and valve seat 4, seal ring is designed with between valve body 1 and flap, described flap comprises flap body 2 and flap shaft 3, flap shaft 3 and flap body 2 are for being threaded, flap shaft 3 is metal hollow pipe, flap shaft 3 is designed with position structure near flap body 2 end, this position structure is metal cirque 6, be set in the threaded end of flap shaft 3 near flap body 2, the internal diameter of this metal cirque 6 is consistent with flap shaft 3 threaded end outside dimension, flap shaft 3 is arranged with spring 5, spring 5 one end is tightened by the position structure metal cirque 6 in flap shaft 3 on flap in flap shaft 3, spring 5 the other end and valve seat 4 offset, described valve seat 4 is connected and fixed with valve body 1.

Claims

1. non-return valve, comprise valve body, flap and valve seat, seal ring is designed with between valve body and flap, it is characterized in that: described flap comprises flap body and flap shaft, flap shaft and flap body are for being threaded, flap shaft is metal hollow pipe, flap shaft is designed with position structure near flap body end, this position structure is metal cirque, be set in the threaded end of flap shaft near flap body, the internal diameter of this metal cirque is consistent with flap shaft threaded end outside dimension, flap shaft is arranged with spring, spring one end is tightened by the position structure metal cirque in flap shaft on flap in flap shaft, the other end and the valve seat of spring offset, described valve seat and valve body are connected and fixed.