CN202215797U

CN202215797U - Silent check valve

Info

Publication number: CN202215797U
Application number: CN2011202647501U
Authority: CN
Inventors: 朱双生; 陈志伟
Original assignee: Guangdong Liansu Technology Industrial Co Ltd
Current assignee: Guangdong Liansu Technology Industrial Co Ltd
Priority date: 2011-07-26
Filing date: 2011-07-26
Publication date: 2012-05-09
Anticipated expiration: 2021-07-26

Abstract

The utility model discloses a silent check valve which comprises a valve body and a disc. A valve seat, a sleeve and a spring are arranged in a valve cavity of the valve body. The disc is inserted in the sleeve. The sleeve is inserted in the valve seat. The spring is arranged between the disc and the valve seat. A combination body of the disc, the sleeve, the spring and the valve seat is arranged in the valve body. The section of a sealing surface of the disc is a conical surface. The section of a sealing surface of the valve body, which corresponds to the disc, is a conical surface. The silent check valve has a better sealing effect.

Description

A kind of DRV

Technical field

The utility model relates to a kind of pipeline valve, is specifically related to a kind of DRV.

Background technique

The existing all kinds of noise reduction safety check in present Domestic market, sealing configuration is a plane sealing between flap and the valve body, and sealing surface is had relatively high expectations; Medium produces whirlpool in valve body, cause flow coefficient to reduce; Medium directly impacts on valve body, and is bigger to the impact of valve body; The valve body wall thickness is excessive, causes cost of production to cross high defective.

Summary of the invention

The goal of the invention of the utility model is to overcome the defective of existing technology, and a kind of good sealing effect is provided, the DRV that cost of production is low.

For realizing the foregoing invention purpose, the utility model adopts following technological scheme: a kind of DRV comprises valve body and flap; In the valve pocket of valve body, be provided with valve seat, sleeve, spring, flap is plugged in the sleeve, and sleeve is plugged in the valve seat; Spring is arranged between flap and the valve seat, and the assemblying body of flap, sleeve, spring and valve seat is arranged in the valve body, and the cross section of the sealing surface of said flap becomes the conical surface; The cross section of the sealing surface that valve body is corresponding with flap becomes the conical surface, and sealing effect is better.

The sealing surface of said flap is provided with glue-line, its buffer function of one side, and sealing effect is better on the other hand.

Said valve seat is provided with impeller inducer, and convection cell carries out water conservancy diversion, alleviates the impact of fluid to valve body.

Said valve body becomes streamlined, and flap is opened the back and crossed along slipping over valve seat, makes the medium following current, increases flow coefficient.

The beneficial effect of the utility model:

1, flap sealing surface encapsulate, flap sealing surface are the conical surface and valve body conical surface seal, improve sealability;

2, valve seat integral body is airflow design, and flap is opened the back and crossed along slipping over valve seat, makes the medium following current, increases flow coefficient;

3, valve seat uses the blade diversion Design, and medium flows through out-of-date direction along blade, reduces medium and valve body is impacted the infringement that causes; Can reduce requirement, save production cost the valve body wall thickness.

Description of drawings

Fig. 1 is the sectional view of the utility model;

Fig. 2 is the right elevation of the utility model.

Among the figure: the 1-valve body; The 2-valve seat; The 3-flap; The 4-sleeve; The 5-spring.

Embodiment

With reference to Fig. 1-2, the described DRV of the utility model comprises valve body 1 and flap (3); In the valve pocket of valve body 1, be provided with valve seat 2, sleeve 4, spring 5, flap 3 is plugged in the sleeve 4, and sleeve 4 is plugged in the valve seat 2; Spring 5 is arranged between flap 3 and the valve seat (2), and the assemblying body of flap 3, sleeve 4, spring 5 and valve seat 2 is arranged in the valve body 1, and the cross section of the sealing surface of flap 3 becomes the conical surface; The cross section of the sealing surface that valve body 1 and flap 3 are corresponding becomes the conical surface; The sealing surface of flap 3 is provided with the encapsulate layer, and valve seat 2 is provided with impeller inducer, and 1 one-tenth of valve body is streamlined.

Claims

1. DRV; Comprise valve body (1) and flap (3); In the valve pocket of valve body (1), be provided with valve seat (2), sleeve (4), spring (5), flap (3) is plugged in the sleeve (4), and sleeve (4) is plugged in the valve seat (2); Spring (5) is arranged between flap (3) and the valve seat (2); The assemblying body of flap (3), sleeve (4), spring (5) and valve seat (2) is arranged in the valve body (1), it is characterized in that: the cross section of the sealing surface of said flap (3) becomes the conical surface, and the cross section of the sealing surface that valve body (1) is corresponding with flap (3) becomes the conical surface.

2. DRV according to claim 1 is characterized in that: the sealing surface of said flap (3) is provided with the encapsulate layer.

3. DRV according to claim 1 and 2 is characterized in that: said valve seat (2) is provided with impeller inducer.

4. DRV according to claim 3 is characterized in that: said valve body (1) becomes streamlined.