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Automatic resetting type valve rod assembly

An automatic reset and valve stem technology, applied in the direction of engine components, servo motor components, valve details, etc., can solve the problems of the push rod not moving, the one-way valve cannot be opened, etc.

Active Publication Date: 2017-05-31
HEFEI XIELI HYDRAULIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes an automatic reset valve rod assembly, which solves the problem in the prior art that when the hydraulic lock is unlocked in the reverse direction, pressure is required, otherwise the push rod does not move and the check valve cannot be opened.

Method used

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  • Automatic resetting type valve rod assembly

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] Such as figure 1 As shown, the automatic reset valve stem assembly includes a valve stem and a jumper connected to the valve stem. A valve stem sleeve is sheathed on the surface of the valve stem, and a reset assembly is arranged on the other end of the jumper.

[0021] The jumping device includes a first housing and a second housing nested with the first housing, the first housing is provided with a first cavity, and a jump valve is arranged in the first ca...

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Abstract

The invention provides an automatic resetting type valve rod assembly. The automatic resetting type valve rod assembly comprises a valve rod and a resetting device connected with the valve rod, wherein a valve rod sleeve sleeves the surface of the valve rod; a resetting assembly is arranged on the surface of the other end of a position hopping device; the position hopping device is used for controlling the valve rod to be automatically reset in the valve rod sleeve; the valve rod is automatically reset in the valve rod sleeve by utilizing the resetting assembly. According to the automatic resetting type valve rod assembly, reversed pressure is not needed and a manual mechanical unlocking manner is adopted, so that hydraulic self-feedback resetting can be realized.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, in particular to an automatic reset valve stem assembly. Background technique [0002] At present, construction machinery, agricultural machinery, especially forklifts, many products have very strict requirements on the center position of multi-way directional valves, and some of them greatly exceed the standard of JB / T8729. This puts forward high requirements on the cooperation between the valve stem and the hole, and also increases the failure rate of products and the occurrence of a series of problems such as stuck valves caused by later product use. However, when the existing hydraulic lock is unlocked in reverse, it needs pressure, otherwise the push rod does not move and the check valve cannot be opened. [0003] Therefore, there is an urgent need for an automatic reset valve stem assembly, which does not require reverse pressure, adopts manual mechanical unlocking, and can r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K31/12
CPCF15B13/02F16K31/12
Inventor 张勇赵岗
Owner HEFEI XIELI HYDRAULIC TECH CO LTD