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A liquid pipeline stop valve structure and using method

A liquid pipeline and globe valve technology, applied in the hydraulic field, can solve the problems of complex structure, large volume, influence, etc., and achieve the effect of avoiding excessive volume, simple and reasonable structure, and prolonging service life.

Active Publication Date: 2018-04-10
XI'AN AIRCRAFT INTERNATIONAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex structure and large size of the above old valve body structure in production, both the convenience of installation and use and the difficulty of maintenance will cause inconvenience to production.

Method used

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  • A liquid pipeline stop valve structure and using method
  • A liquid pipeline stop valve structure and using method
  • A liquid pipeline stop valve structure and using method

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Experimental program
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Effect test

Embodiment Construction

[0014] Referring to the accompanying drawings, the structure of the liquid pipeline cut-off valve includes a body 6 and a valve stem 2 and a valve core 4 assembled on the body. The inlet of the inner cavity, the rear end 11 of the inner cavity is connected to the outlet of the liquid pipeline, and the communication between the front end 5 of the inner cavity and the rear end 6 of the inner cavity is controlled by the expansion and contraction of the valve core 4, which is embedded in the body through a return spring 10 In the inner cavity 9, there is also a small pipeline 3 with a circuitous layout built in the body 6. The front end of the small pipeline 3 communicates with the front end 5 of the inner cavity of the body, and the rear end of the small pipeline is divided into two ways to connect with the rear of the inner cavity respectively. The end 11 communicates with the cavity 9, and the valve stem 2 is fixed on the body 6 through a bearing. Intersection, the intersection...

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Abstract

The invention provides a stop valve structure for a liquid pipeline and an application method. The stop valve structure for the liquid pipeline comprises a body, a valve rod and a valve element, wherein the valve rod and the valve element are assembled on the body. Communicating between the front end and the rear end of an inner cavity of the body is controlled by extending and contracting of the valve element. The valve element is embedded into a groove cavity in the body through a reset spring. The groove cavity behind the valve element is connected with an inlet and an outlet of the liquid pipeline through a small pipeline arranged in the body, then the small pipeline is controlled to be connected or disconnected through hole shafts on the valve rod, and the pressure change of the front side and the pressure change of the rear side of the valve element are controlled sequentially; and in cooperation with the reset spring, the valve element extends out of or draw back into the groove cavity, connection or disconnection of the liquid pipeline is sequentially controlled, and the beneficial effect that the liquid pipeline bearing the large pressure is controlled by rotating the valve rod with small strength is achieved.

Description

technical field [0001] The application relates to hydraulic technology, and is especially suitable for the structure and use method of the shut-off valve for hydraulic pipelines that require manual opening and closing of hydraulic oil circuits, high system pressure, and large flow. Background technique [0002] The miniaturization and dexterity of hydraulic system components is the trend of future development. Today, when the hydraulic principle is mature, more attention is paid to the convenience and aesthetics of the product while realizing the function, and the smaller components are more convenient to install and the aesthetics of the product appearance. Most of the common hydraulic globe valves use an external piston transmission structure. This structure will configure a hydraulic cylinder on the valve itself, and control the hydraulic cylinder through external hydraulic pressure, thereby controlling the opening and closing of the valve. There is also a valve body div...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K1/36F16K1/32F16K31/60F16K31/12
CPCF16K1/00F16K1/32F16K1/36F16K31/12F16K31/60
Inventor 庞龙飞
Owner XI'AN AIRCRAFT INTERNATIONAL
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