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Needle-shaped stop valve for special gas

A special gas and stop valve technology, applied in the direction of lift valves, valve details, valve devices, etc., can solve the problems of inconvenient maintenance and easy air leakage of needle stop valves, achieve convenient disassembly and installation, prevent wear and tear, and improve air tightness sexual effect

Pending Publication Date: 2021-03-26
科哲(上海)阀门有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a needle cut-off valve for special gases, which has the advantages of not easy to wear the valve stem and easy maintenance as a whole, and solves the problems of inconvenient maintenance and easy air leakage of the traditional needle cut-off valve

Method used

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  • Needle-shaped stop valve for special gas
  • Needle-shaped stop valve for special gas
  • Needle-shaped stop valve for special gas

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Embodiment Construction

[0024] The needle stop valve for special gas of the present invention will be described in further detail below in conjunction with specific drawings. It should be noted that in the present invention, descriptions such as "first", "second" and so on are only for the purpose of description, and do not specifically refer to the meaning of order or order, nor are they used to limit the present invention, but are only for the purpose of distinguishing Components or operations described with the same technical terms are nothing more than components or operations, but should not be understood as indicating or implying their relative importance or implying the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. Whe...

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Abstract

The invention relates to the technical field of needle-shaped stop valves, and particularly discloses a needle-shaped stop valve for special gas. The needle-shaped stop valve comprises a valve body and a valve rod; an air exchange channel is formed in the central position in the valve body; the top of the air exchange channel penetrates through the top of the valve body; an air inlet and an air outlet are respectively formed in the left and right sides of the valve body; an air inlet channel is arranged in the valve body and located between the air inlet and the air exchange channel; an air outlet channel is arranged in the valve body and located between the air outlet and the air exchange channel; a first connecting pipe and a second connecting pipe are fixedly connected to the centers ofthe left side and the right side of the valve body respectively; the center of the top of the valve body is fixedly connected with a locking mechanism through a screw; and the valve rod is in threaded connection with the interior of the locking mechanism. After a worker screws the valve rod, two handles can be folded inwards; space occupied by the handles is effectively reduced; and the phenomenon that the valve rod rotates due to the fact that external objects impact the handles can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of needle stop valves, in particular to a needle stop valve for special gases. Background technique [0002] Needle globe valves are generally suitable for occasions where the load does not change much, or where the speed stability is not high, such as in chemical instruments or gas transmission pipelines. [0003] The valve body of the traditional needle globe valve is integrally processed or welded, and the valve stem can only move up and down inside the valve body. If the needle valve head at the bottom of the valve stem is worn, it will affect the overall sealing performance of the valve. The valve stem of the traditional needle globe valve is difficult to disassemble and replace. If it is damaged, the entire valve must be disassembled, which is very complicated, and the top of the stem of the needle globe valve is often set in a T-shaped stem, although the T-shaped stem The design allows the staff to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/50F16K31/60F16K1/38F16K1/50
CPCF16K31/50F16K31/60F16K1/38F16K1/50
Inventor 杨波王阳
Owner 科哲(上海)阀门有限公司
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