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Ball valve

A technology for ball valves and valve bodies, which is applied in the direction of valve devices, cocks including cut-off devices, engine components, etc., which can solve the problems of reduced sealing effect and achieve the effect of ensuring sealing reliability

Active Publication Date: 2014-01-22
NEWAY VALVE SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is the problem that the sealing effect is reduced due to the movement of the seal on the holder. The present invention prevents the movement of the seal by rationally designing the structure of the seal between the valve body and the valve body, and improves the sealing effect of the seal. The sealing effect

Method used

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Effect test

Embodiment Construction

[0025] This embodiment provides a ball valve, such as Figure 5 , 6 , 7 and 8, including a retainer 53 between the valve ball 51 and the valve body 52, and a seal 54 between the retainer 53 and the valve body 52, and a shaft between the seal 54 and the valve body 52 The spring assembly 55 between the two end faces, the spring assembly 55 includes a spring seat 551 and a spring 552; the spring seat 551 is sleeved on the end of the holder 53 and is connected to the holder 53 in anti-rotation, the spring 552 abuts against the spring seat Between 551 and the valve body 52, the spring seat 551 has a certain amount of sliding relative to the valve body 52; the spring seat 551 is formed with a number of bosses 554 at the end that matches the valve body 52, and the valve body 52 is formed with a number of protrusions at corresponding positions. The groove 521 for the table 554; in the assembly position, the boss 554 is inserted into the groove 521. At this time, the retainer 53 moves a ...

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PUM

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Abstract

The invention relates to a ball valve comprising a fixer, sealing elements and a spring assembly. The fixer is located between a valve ball and a valve body, the sealing elements are located between the fixer and the valve body, the spring assembly is located between the sealing elements and the axial end face of the valve body, the spring assembly comprises a spring seat and a spring, the spring seat is sleeved on the end portion of the fixer, and the spring is butted between the spring seat and the valve body. The spring seat has certain sliding displacement relative to the valve body; when at the working position, the spring seat is pressed to butt against the sealing elements by the aid of elastic force of the spring, and the other end of each sealing element is butted against the side wall of the fixer. After the sealing elements are disposed in the fixer, the spring seat is sleeved on the end portion of the fixer, the spring is disposed between the spring seat and the valve body, and the parts are pressed towards the valve body through a tool to be disposed in the valve ball; under the action of elastic force of the spring, the spring seat, the sealing elements and the fixer can spring back to specific locations, namely the spring seat is pressed onto the sealing elements, the other end of each sealing element is butted against the fixer, and accordingly the sealing elements are ensured not to move during use, and reliability in sealing is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of valve manufacturing, in particular to a ball valve. Background technique [0002] The ball valve has become one of the more widely used valves due to its reliable sealing, simple structure and convenient maintenance. Among the ball valves, DBB and DIB are two types of valve seat functions. Among them, the DBB valve seat is also called a single piston effect valve seat. Each valve seat can resist a force in one direction and can discharge the middle cavity. DIB valve seat is divided into DIB-1 valve seat and DIB-2 valve seat. Each valve seat of DIB-1 valve seat resists the force in two directions, which is called double-piston effect valve seat, but this structure requires a middle cavity. Pressure relief device; the valve seat at the inlet of DIB-2 is DBB, and the outlet is DIB, which is also called single and double piston effect valve seats. This structure automatically releases the pressure in the cavity t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/08F16K5/06
CPCF16K5/0689F16K5/201
Inventor 丁城王国军王建华
Owner NEWAY VALVE SUZHOU