Valve rod retreating prevention device for high-pressure valve

A high-pressure valve, valve stem technology, applied in valve device, valve operation/release device, valve details, etc., can solve the problems of non-operator mis-rotation, medium outflow, lack of limit, etc., to increase service life, reduce Small friction, the effect of ensuring the sealing effect

Active Publication Date: 2019-06-25
苏州悦达阀门有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The high-pressure valve is a kind of valve; when the high-pressure valve is in use, it is exposed to the outside world, and non-operators may turn it wrong, or the pressure is too high, ca

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  • Valve rod retreating prevention device for high-pressure valve
  • Valve rod retreating prevention device for high-pressure valve
  • Valve rod retreating prevention device for high-pressure valve

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[0031] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] The technical solutions of the present invention will be further described below in conjunction with the drawings and specific implementations.

[0033] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "...

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Abstract

The invention discloses a valve rod retreating prevention device for a high-pressure valve. The device comprises a valve body, a valve rod, a hand wheel, a mounting bar, a connection insertion block,a placing sleeve, a screw, a cylinder, a spring, a strip groove, a rubber head cover, a disc, a circular sleeve, a movable round rod, a first rubber sleeve, a connecting bar, a limiting groove, a through groove, a slot, a second rubber sleeve, an L-shaped groove, a sealing ring, an annular oil storage tank, a fine hole, a fixed pipe, a rubber bar, a connecting cylinder and a ball. The device is reasonable in structure; through an extension structure, the movable round rod can be lifted in the vertical direction; when the valve body is closed, the movable round rod can be inserted in the limiting groove of the hand wheel to prevent rotation of the hand wheel by external force; meanwhile, through arrangement of the bolt, the hand wheel can be limited; when the movable round rod is lifted, only the connecting bar slides in the strip groove and the L-shaped groove; and after the movable round rod is collected into the cylinder, the connecting bar moves to the tail end of the L-shaped groove, and the connecting bar can be stopped, so that the operation is simple.

Description

technical field [0001] The invention relates to a valve stem anti-retraction device, in particular to a valve stem anti-retraction device for a high-pressure valve, belonging to the technical field of valve anti-retraction applications. Background technique [0002] A valve is a control component in a fluid delivery system, with functions such as cut-off, regulation, flow diversion, reverse flow prevention, pressure stabilization, diversion or overflow pressure relief; valves used in fluid control systems range from the simplest cut-off valve to extremely complex There are various types and specifications of valves used in the automatic control system. [0003] The high-pressure valve is a kind of valve; when the high-pressure valve is in use, it is exposed to the outside world, and non-operators may turn it wrong, or the pressure is too high, causing the valve stem to retreat, which may cause the outflow of the medium, and the valve stem may There will be a lack of blockin...

Claims

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Application Information

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IPC IPC(8): F16K31/44F16K51/00
Inventor 冷伯荣徐中亮丁梅蒋其
Owner 苏州悦达阀门有限公司
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