A kind of rapid cut-off device for liquid conveying pipeline

A technology of conveying pipelines and cut-off devices, which is applied in the field of rapid cut-off devices for liquid conveying pipelines, which can solve problems such as pipeline bursts, waste of raw materials, maintenance personnel unable to close valves, etc., and achieve the effect of preventing waste

Active Publication Date: 2019-09-13
平湖市超越时空图文设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is known that in industrial equipment, pipelines are the main carrier for transporting liquids. The existing control method is to install valves on pipelines to control flow and stop flow. Due to pipeline quality, pipeline aging or excessive pressure, etc., often In the event of loose pipe joints or pipe bursts, maintenance personnel cannot approach and close the valve due to the extremely high pressure of the liquid being transported, resulting in a large waste of raw materials

Method used

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  • A kind of rapid cut-off device for liquid conveying pipeline
  • A kind of rapid cut-off device for liquid conveying pipeline
  • A kind of rapid cut-off device for liquid conveying pipeline

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Embodiment Construction

[0026] The present invention can be explained in more detail by the following examples, and the purpose of disclosing the present invention is intended to protect all changes and improvements within the scope of the present invention, and the present invention is not limited to the following examples;

[0027] combined with Figure 1-8 The liquid delivery pipeline quick shut-off device comprises a cross-shaped pipe, a moving valve stem 19, a rubber sealing ring A11, a rubber sealing ring B12, a spring 10, a control rod 14 and a cylinder 15, and an expansion valve is arranged at one end of the moving valve stem 19. Diameter ring 20, the two sides of the moving valve stem 19 near the middle are respectively provided with an annular groove A18 and an annular groove B21, between the annular groove A18 and the annular groove B21, the moving valve stem 19 is close to the annular groove The A18 place is provided with the liquid through the perforation A17. In order to avoid the passa...

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Abstract

The invention discloses a quick cutoff device of a liquid conveying pipe, and relates to a pipe cutoff device. A through hole (17) of a movable valve rod (19) inserted in a pipe hole (4) of a valve pipe (26) corresponds to pipe holes of a connecting pipe A (2) and a connecting pipe B (9) or blocks the pipe holes; the two ends of a spring (10) sleeving the movable valve rod eject against one end ofthe valve pipe and opposite surfaces of a diameter expanding ring (20); a control rod (14) is inserted in a blind hole (16); corresponding chutes (28) are formed in the upper and lower surfaces of the control rod; slide pieces (15.1) on opposite surfaces of a cylinder (15) inserted in upper and lower ports of a through hole (22) control two cylinder outer ends to clamp on the end surface of the other end of the valve pipe or to shrink into the through hole through the depth control of the two chutes; and a pull rope (6) is arranged at the outer end of the control rod. When a pipe joint is loosened or the pipe is burst, the pull rope is pulled to drive the movable valve rod to quickly close the pipe through the acting force of the spring.

Description

technical field [0001] The present invention relates to a pipeline cut-off device, in particular to a quick cut-off device for a liquid conveying pipeline. Background technique [0002] It is known that in industrial equipment, pipelines are the main carrier for transporting liquids. The existing control method is to install valves on pipelines to control flow and stop flow. Due to pipeline quality, pipeline aging or excessive pressure, etc., often In the event of loose pipe joints or pipe bursts, maintenance personnel cannot approach and close the valve due to the extremely high pressure of the liquid being transported, resulting in a large waste of raw materials. Contents of the invention [0003] In order to overcome the deficiencies in the background technology, the present invention discloses a quick shut-off device for liquid conveying pipelines. When the pipeline interface becomes loose or the pipeline bursts, pulling the pull rope can drive the moving valve stem to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/00F16K27/04
Inventor 叶聪梅
Owner 平湖市超越时空图文设计有限公司
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