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Stop valve

A globe valve and valve body technology, applied in the field of globe valves, can solve problems such as failure to effectively avoid damage to globe valves, easy damage to seals, etc., and achieve the effects of smooth and controllable switching process, buffer sealing, and easy maintenance and replacement.

Pending Publication Date: 2022-02-25
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the globe valve in the prior art, it is necessary to turn the handle to control the switch of the globe valve, which cannot effectively avoid damage to the globe valve due to excessive operation. The sealing action is controlled by the product structure size, and the seal is easily damaged.

Method used

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Embodiment Construction

[0051] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

[0052] It should be noted that the descriptive word "upper" involved in this specific embodiment refers to the part of the part that is far away from the medium outlet of the valve body, and the descriptive word "lower" refers to the part that is close to the valve body. As for the part of the medium outlet part of the body, "upper part" and "lower part" are only a description language of the specific embodiment of the present invention, and should not be considered as limiting the present invention.

[0053] The present invention will be described in ...

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Abstract

The invention discloses a stop valve which comprises a valve body, a valve cover, a handle assembly, a valve element, an elastic sealing assembly and a sealing spring. The appearance of the lower portion of an installation rod of the handle assembly is arranged to be a cam curve surface and is in contact connection with the plane of the upper portion of the valve deck in an abutting mode, so that the opening and closing process is stable and controllable, and rapid opening and closing can be achieved. An upper clamping opening groove and a lower clamping opening groove are formed in the upper portion of the valve cover and matched with the curve surface of a cam on the lower portion of the handle assembly, and therefore the working position is locked. A first long slotted hole is formed in the upper portion of the valve element, a second long slotted hole is formed in the upper portion of the valve cover, and the pin shaft can slide in the length direction of the first long slotted hole and the second long slotted hole and is inserted into the first long slotted hole and the second long slotted hole. The first long slotted hole formed in the valve element and the second long slotted hole formed in the valve cover are matched with the pin shaft, so that buffering sealing can be achieved, and the service life of the stop valve is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a stop valve applied in the field of manned spaceflight. Background technique [0002] With the transition of spacecraft from non-regenerative systems to regenerative systems and controlled ecosystems, more and more attention has been paid to the research and development of electrolytic oxygen generation systems. Effective and low-loss use of the electrolytic oxygen generation system can prolong the service life of the spacecraft and reduce the cost of ground transportation and supply. As an important system of the regeneration system of the space station, the electrolytic oxygen generation system is mainly used to electrolyze the clean water produced by the urine pretreatment subsystem to generate hydrogen and oxygen. Except part of the generated hydrogen is used in the CO2 reduction system, the rest of the hydrogen needs to be discharged out of the cabin. The shut-off valve us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/46F16K31/524F16K31/60F16K35/02F16K37/00F16K27/08F16K27/02
CPCF16K1/00F16K1/46F16K31/52408F16K31/607F16K35/027F16K37/0008F16K27/08F16K27/02
Inventor 李磊磊周晓蕾赵健张斌张风光李鹏苏焕焕沈伟白燕任亚斐范天明刘畅
Owner BEIJING SATELLITE MFG FACTORY
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