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Lifting check valve

A check valve, lifting type technology, applied in the direction of control valve, valve device, function valve type, etc., can solve the problems of not meeting the use requirements well, short service life, poor check effect, etc., and achieve the check effect Good, long service life, the effect of meeting the requirements of use

Inactive Publication Date: 2014-07-02
DAFENG OKAY FLUID MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Check valves are used in pipelines in petroleum, chemical and other industries to cut off the liquid in the pipeline. The existing check valves have poor check effect during use, and will easily lead to check failure after a long time. Short, can not meet the requirements of use well

Method used

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  • Lifting check valve

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Embodiment Construction

[0008] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0009] Such as figure 1 As shown, the lifting check valve includes: a valve body 1 and a bonnet 2, the valve body 1 and the bonnet 2 are connected by bolts 3 and nuts 4, and an inlet passage is arranged in the valve body 1 5 and outlet passage 6, a valve seat 7 is provided on one side of the inlet passage 6 inside the valve body 1, and a passage 8 communicating with the inlet passage 5 is arranged in the valve seat 7, and a passage 8 that communicates with the inlet passage 5 is arranged in the valve body 1. The valve flap 9 that cooperates with the valve seat 7, the upper end of the valve flap 9 is connected with the valve stem 10, and the upper end of the valve stem 10 is slidably arranged in the chute 11 inside the valve cover 2, in the chute 11 is provided with a spring 12 , one end of the spring 12 abuts against ...

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Abstract

The invention discloses a lifting check valve which is long in service life. The lifting check valve comprises a valve body and a valve deck. The valve body and the valve deck are connected through a bolt and a nut. An inlet channel and an outlet channel are formed in the valve body. A valve seat is arranged on one side of the inlet channel in the valve body. A channel mutually communicated with the inlet channel is formed in the valve seat. A valve clack mutually matched with the valve seat is arranged in the valve body. The valve rod is connected to the upper end of the valve clack, the upper end of the valve rod is arranged in a chute inside the valve deck in a sliding mode, a spring is arranged in the chute, one end of the spring abuts against the valve deck, and the other end of the spring abuts against the valve rod. The lifting check valve has the advantages that when the lifting check valve is normally used, the non-return function is well achieved, use is more convenient, the non-return effect is good, the service life is long, and the use requirement can be well satisfied.

Description

technical field [0001] The invention relates to a valve, in particular to a lifting check valve. Background technique [0002] Check valves are used in pipelines in petroleum, chemical and other industries to cut off the liquid in the pipeline. The existing check valves have poor check effect during use, and will easily lead to check failure after a long time. Short, can not well meet the requirements of use. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a lifting check valve with long service life. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a lifting check valve, including: a valve body and a valve cover, the valve body and the valve cover are connected by bolts and nuts, and a There are inlet passages and outlet passages, a valve seat is arranged on one side of the inlet passage inside the valve body, and a passage communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/06
CPCF16K15/063
Inventor 丁学峰蔡雷顾云飞
Owner DAFENG OKAY FLUID MACHINERY
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