Ball valve

A ball valve and valve body technology, applied in the direction of valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of assembly difficulty and complex ball valve structure, and achieve the effect of easy assembly.

Active Publication Date: 2014-04-23
NEWAY VALVE SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] For this reason, the technical problem to be solved by the present invention is that the structure of the existing bal

Method used

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Example Embodiment

[0029] The ball valve provided by the present invention, such as Figure 5 , 6 , 7 and 8, it includes a holder 53 between the valve ball 51 and the valve body 52, the holder 53 and the valve body 52 are sealedly connected by a sealing member 54, and the valve ball 51 is sealed with the holder 53; The limiter 55 is sleeved on the holder 53, and the limiter 55 is connected with the valve body 52 to prevent rotation; An elastic member 56 is arranged between the limiting member 55 and the radial end face of the holder 53; a plurality of second grooves 553 are formed on the end surface 552 of the limiting member 55 facing the holder 53, and the holder 53 matches the second grooves 553. A number of bumps 531 are formed at the position; in the assembly position, the bumps 531 are inserted into the second grooves 553; in the working position, the resilient force of the elastic member 56 causes the bumps 531 to withdraw from the second grooves 553, which is suitable for the holder 53 ...

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Abstract

The invention relates to a ball valve. The ball valve comprises a fixer positioned between a valve ball and a valve body, and a limiting piece sleeved on the fixer, wherein the fixer is hermetically connected with the valve body through a sealing element; the valve ball is hermetically connected with the fixer; the limiting piece is connected with the valve body in an anti-rotation way; the sealing element is arranged between the radial end face of the limiting element and the radial inner end face of the valve body; an elastic piece is arranged between the limiting piece and the radial end face of the fixer; a plurality of second grooves are molded on the end face, which faces the fixer, of the limiting piece; a plurality of bosses are molded at positions where the fixer is matched with the second grooves; at an assembling position, the bosses are inserted into the second grooves; at a working position, the bosses retreat from the second grooves under the action of the resilience force of the elastic piece, the fixer can move towards the valve ball and be pressed against the valve ball, and the bosses are pressed against the outer end face of the limiting piece after rotating by certain angles on the fixer. The assemblies cannot move relatively at the working position, thereby achieving a reliable sealing effect between the fixer and the valve body and simplifying the structure.

Description

technical field [0001] The invention relates to the technical field of valve production, in particular to a ball valve. Background technique [0002] Ball valve has become one of the most widely used valves due to its reliable sealing, simple structure and convenient maintenance. Compared with the side-entry ball valve, the top-entry ball valve has fewer external leakage points, less impact from pipeline stress, and convenient online maintenance. [0003] Such as figure 1 Shown is a common top entry ball valve structure in the prior art, including: a valve ball 11, a valve body 12, a retainer 13 located between the valve ball 11 and the valve body 12, and one side of the retainer 13 passes through a sealing ring 14 Sealed connection with the valve ball 11, a spring 16 is provided between the retainer 13 and the valve body 12, a shoulder is also formed on the other side of the retainer 13, and the seal 15 is arranged on the shoulder, and the retainer 13 passes through the s...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/20
CPCF16K5/0626F16K5/0689F16K5/201
Inventor 丁城王国军王建华
Owner NEWAY VALVE SUZHOU
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