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Segmented piston spool structure, assembly, valve and method thereof

A piston valve, block-type technology, applied in the direction of lift valve, valve device, engine components, etc., can solve the problem of unbalanced force on the piston valve core

Active Publication Date: 2021-05-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the phenomenon of unbalanced force on the existing piston valve core, and provide a block type piston valve core structure

Method used

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  • Segmented piston spool structure, assembly, valve and method thereof
  • Segmented piston spool structure, assembly, valve and method thereof
  • Segmented piston spool structure, assembly, valve and method thereof

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Embodiment Construction

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like figure 1 , figure 2 As shown, it is a block-type piston valve core in a preferred embodiment of the present invention, and the piston-type valve core is used for being installed between the valve seat 4 and the sleeve 1 to form a valve core assembly. The main structure of the block-type piston valve core includes a valve core body 3 , a movable block 6 and an annular seal 7 .

[0027] Among them, the outer outline shape of the valve core body 3 is basically the same as that of the conventional valve core. In this embodiment, it is a hollow cylindrical shape. 1 Mating cylindrical face. However, the main difference between the valve core body 3 in the present invention and the conventional valve core is that the bottom surface thereof is not a complete body, but is divided into blocks. The bottom surface of the valve core body 3 itself is annular, and a ci...

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Abstract

The invention discloses a block-type piston valve core structure, an assembly, a valve and a method thereof. The spool structure includes a spool main body, a movable block and an annular seal; the bottom surface of the spool main body is a plane with a through hole in the center; the movable block is placed flat in the through hole, and its bottom surface is a plane; The annular seal is kept airtightly connected with the side wall of the through hole, forming the water-tight sealing surface of the valve core; the annular seal has telescopic elasticity, so that the movable block can turn over when subjected to an unbalanced moment. The invention divides the piston type valve core into the main body of the valve core directly in contact with the sealing device and the movable block subjected to the unbalanced torque by dividing the piston type valve core into blocks. The main body of the core maintains the original vertical orientation, thereby avoiding the phenomenon of squeezing the sealing device caused by the unbalanced moment. The invention has simple structure, easy manufacture and can be widely popularized and applied.

Description

technical field [0001] The present invention relates to a piston valve core structure, in particular to a block type piston valve core structure and its components, valve and method. Background technique [0002] In a horizontally arranged valve with a piston-type spool structure, the force on the bottom surface of the spool shows an obvious unbalanced phenomenon. , the unbalanced pressure distribution causes an unbalanced moment at the bottom of the valve core, and the unbalanced moment is mainly concentrated in the middle of the bottom surface of the valve core. The existence of unbalanced torque makes the piston valve core have a tendency to turn sideways, which eventually causes the valve core wall to squeeze the sealing pair, which not only increases the driving energy consumption, affects the sealing performance, but also affects the valve performance under large flow conditions. Leak failure. [0003] In the current piston valve structure on the market, there is a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/36F16K1/46
CPCF16K1/36F16K1/46
Inventor 钱锦远母娟高志新金志江
Owner ZHEJIANG UNIV
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