CN210637550U

CN210637550U - Low-pressure full-open check valve

Info

Publication number: CN210637550U
Application number: CN201921829990.4U
Authority: CN
Inventors: 李小军
Original assignee: Zhejiang Zhongtian Valve Co Ltd
Current assignee: Zhejiang Zhongtian Valve Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-05-29
Anticipated expiration: 2029-10-29

Abstract

The utility model relates to a low pressure full open check valve, including valve body, disk seat, bush, spring, ball sealer and sealing washer, be equipped with inlet opening and apopore on the both ends of valve body respectively, be equipped with the valve pocket of intercommunication inlet opening and apopore in the valve body, be equipped with the disk seat on one side of apopore in the valve pocket, the cover is equipped with the bush on the inner wall of valve pocket, be equipped with the sealing washer on one side of inlet opening in the valve pocket, the one end conflict of spring is connected on the disk seat, the other end conflict of spring is connected on the surface of ball sealer, ball sealer is contradicted and is connected on the sealing washer. The utility model has the advantages that: the elastic rubber sealing device has the advantages that the elastic rubber material is convenient to replace and maintain, the elastic rubber sealing device has the advantages of being compact in design structure and small in size, can effectively protect internal parts, is convenient for achieving a fully-opened or fully-closed state in a low-pressure environment, adopts soft sealing, and increases sealing performance.

Description

Low-pressure full-open check valve

Technical Field

The utility model relates to a valve, in particular to low pressure full open check valve.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The check valve and the stop valve are combined for use, and the safety isolation effect can be achieved.

Some existing check valves are difficult to achieve fully-opened and fully-closed states in a low-pressure environment, poor in internal sealing performance, easy to damage, short in service life, troublesome in later maintenance and overlarge in size.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a low pressure opens check valve entirely to solve above-mentioned problem.

The technical scheme of the utility model is realized like this: the utility model provides a low pressure opens check valve entirely, includes valve body, disk seat, bush, spring, ball sealer and sealing washer, be equipped with inlet opening and apopore on the both ends of valve body respectively, be equipped with the valve pocket of intercommunication inlet opening and apopore in the valve body, be equipped with the disk seat on one side of apopore in the valve pocket towards, the cover is equipped with the bush on the inner wall of valve pocket, be equipped with the sealing washer on one side of inlet opening in the valve pocket towards, the one end of spring is contradicted and is connected on the disk seat, the other end of spring is contradicted and is connected on the surface of ball sealer, the ball sealer is contradicted.

Through adopting above-mentioned technical scheme, have the advantage that the maintenance is convenient for change of elastic rubber material, have design compact structure, small advantage, the inside part of effectual protection can be convenient for reach the state of opening completely or full cut-off under low pressure environment, adopt soft seal, has increased the leakproofness.

The utility model discloses further set up to: the bushing is made of elastic rubber.

Through adopting above-mentioned technical scheme, be convenient for later maintenance and change have increased leakproofness and protective properties, more durable.

The utility model discloses further set up to: and one sides of the water inlet hole and the water outlet hole facing the valve cavity are provided with inwards concave inclined planes.

By adopting the technical scheme, the water inlet and the water outlet are smoother, the resistance is reduced, and the practicability is improved.

The utility model discloses further set up to: and one side of the valve seat facing the spring is provided with an annular groove, and one end of the spring is fixed in the annular groove.

By adopting the technical scheme, one end of the spring can be fixed, so that the reaction of the spring is more sensitive, and the practicability and the innovation are improved.

The utility model discloses further set up to: the inner wall of the valve body and the inner wall of the lining are both arranged smoothly.

Through adopting above-mentioned technical scheme, reduced residue and resistance, made the fluid flow through more smooth and easy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model discloses a low pressure check valve of opening entirely, including valve body 1, disk seat 2, bush 3, spring 4, ball sealer 5 and sealing washer 6, be equipped with inlet opening 8 and apopore 9 on the both ends of valve body 1 respectively, be equipped with the valve pocket 7 of intercommunication inlet opening 8 and apopore 9 in the valve body 1, be equipped with disk seat 2 on one side of apopore 9 in the valve pocket 7, the cover is equipped with bush 3 on the inner wall of valve pocket 7, be equipped with sealing washer 6 on one side of orientation inlet opening 8 in the valve pocket 7, the one end conflict of spring 4 is connected on disk seat 2, the other end conflict of spring 4 is connected on ball sealer 5's surface, ball sealer 5 conflicts is connected on sealing washer 6.

In the embodiment of the present invention, the bushing 3 is made of elastic rubber.

The embodiment of the utility model provides an in, inlet opening 8 and apopore 9 all establish to inside sunken inclined plane towards one side of valve pocket 7.

In the embodiment of the present invention, the valve seat 2 is provided with an annular groove 10 on one side facing the spring 4, and one end of the spring 4 is fixed in the annular groove 10.

In the embodiment of the present invention, the inner wall of the valve body 1 and the inner wall of the bushing 3 are all smoothly disposed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low pressure full open check valve characterized in that: including valve body (1), disk seat (2), bush (3), spring (4), ball sealer (5) and sealing washer (6), be equipped with inlet opening (8) and apopore (9) on the both ends of valve body (1) respectively, be equipped with valve pocket (7) of intercommunication inlet opening (8) and apopore (9) in valve body (1), be equipped with disk seat (2) on one side towards apopore (9) in valve pocket (7), the cover is equipped with bush (3) on the inner wall of valve pocket (7), be equipped with sealing washer (6) on one side towards inlet opening (8) in valve pocket (7), the one end conflict of spring (4) is connected on disk seat (2), the other end conflict of spring (4) is connected on the surface of ball sealer (5), ball sealer (5) conflict is connected on sealing washer (6).

2. The low pressure, fully open check valve of claim 1, wherein: the bushing (3) is made of elastic rubber.

3. The low pressure, fully open check valve of claim 1, wherein: and one sides of the water inlet hole (8) and the water outlet hole (9) facing the valve cavity (7) are provided with inwards concave inclined planes.

4. The low pressure, fully open check valve of claim 1, wherein: and an annular groove (10) is formed in one side, facing the spring (4), of the valve seat (2), and one end of the spring (4) is fixed in the annular groove (10).

5. The low pressure, fully open check valve of claim 1, wherein: the inner wall of the valve body (1) and the inner wall of the lining (3) are both smoothly arranged.