Valve capable of being closed automatically

An automatic closing and valve technology, applied in the direction of functional valve type, safety valve, balance valve, etc., can solve the problems of fluid leakage, waste of resources, combustion or explosion, etc., to prevent continuous leakage, prevent waste of resources, avoid combustion or explosion Effect

Pending Publication Date: 2018-12-18
龙长贵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing valves still have defects. When the pipeline breaks, falls off or burns, the valve cannot be automatically closed to stop the fluid from continuing to flow, resulting in flu

Method used

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  • Valve capable of being closed automatically
  • Valve capable of being closed automatically
  • Valve capable of being closed automatically

Examples

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Example Embodiment

[0025] The embodiments of the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to explain the technical solutions of the present invention more clearly, and therefore are only used as examples, and cannot be used to limit the protection scope of the present invention.

[0026] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "top", "bottom", etc. are based on the drawings shown The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. ...

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Abstract

The invention discloses a valve capable of being closed automatically. The valve comprises a valve pipe body, a switch triggering device and a valve switch. The switch triggering device comprises a compression cylinder, a spring a movable lug, a limiting rod and a clamping handle. The compression cylinder is installed on the valve pipe body and communicates with an inner runner of the valve pipe body. The spring and the movable lug arranged in the compression cylinder. The limiting rod is arranged on the movable lug, and the clamping handle is connected with the valve switch. The movable lug can move in the compression cylinder. The upper portion of the limiting rod can penetrate out of the top end of the compression cylinder so as to limit rotation of the clamping handle. The clamping handle and the valve switch can rotate synchronously. The valve switch is an automatic-reset switch. When a fluid pipeline connected with the valve is subjected to leakage and pressure reducing and the fluid pressure in the compression cylinder is lower than the elastic force of the spring, the limiting rod enters the compression cylinder so as to release the clamping handle, after the clamping handle is released, the valve switch is automatically reset so as to cut off the inner runner of the valve pipe body. The valve can be automatically closed according to pressure changes of fluid in the pipeline so that the fluid can be prevented from flowing continuously.

Description

technical field [0001] The invention belongs to the technical field of valves in fluid delivery pipelines, and in particular relates to an automatic closing valve. Background technique [0002] The valve is a safety supporting device in the fluid transmission pipeline, which is used to cut off, connect and adjust the fluid in the pipeline. It has good control characteristics and closing and sealing performance. A fluid medium delivery pipeline. [0003] Valves are more and more widely used in industry and life, and are used in fluid transportation in liquefied petroleum pipelines, natural gas pipelines, water pipelines, fluid pipelines in engineering experiments, household gas pipelines, and gas supply pipelines for oxygen cutting. pipeline. However, the existing valves still have defects. When the pipeline breaks, falls off or burns, the valve cannot be automatically closed to stop the fluid from continuing to flow, resulting in fluid leakage and waste of resources. The l...

Claims

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Application Information

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IPC IPC(8): F16K17/04
CPCF16K17/0406
Inventor 龙长贵
Owner 龙长贵
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