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Leakage-proof self-sealing valve

A self-sealing and valve technology, applied in sliding valves, valve devices, engine components, etc., can solve the problems of sealing piston wear, prone to external leakage, and reduced sealing performance, and achieve the effect of preventing external leakage and avoiding external leakage.

Inactive Publication Date: 2021-04-30
刘培芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some of the valves in the prior art use rotation to open and close. Due to the cooperation of the screw and the nut, the angle of rotation is limited, and the sealing piston will wear out after a long time of use, resulting in a decrease in sealing performance and prone to leakage.

Method used

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  • Leakage-proof self-sealing valve

Examples

Experimental program
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Effect test

Embodiment 1

[0027] see Figure 1-5 , the present invention provides a technical solution for an anti-leakage self-sealing valve: its structure includes: valve body 1, bolt 2, nut 3, valve cover 4, handle 5, valve stem 6, piston 7, the top of the valve body 1 passes through The bolt 2 is connected with the valve cover 4, the top of the valve cover 4 is connected with the nut 3, the piston 7 is arranged in the valve body 1 and connected with the bottom of the valve stem 6, and the top of the valve stem 6 passes through the nut 3 and is connected There is a handle 5, the piston 7 includes a fixed block a and a movable block b, the top of the fixed block a is connected with the valve stem 6, the bottom of the fixed block a is connected with the movable block b, and the fixed block a includes a block Body a0, lifting chamber a1, chute a2, slider a3, pole a4, spring member a5, pull cord a6, connecting rod a7, lifting block a8, the lifting chamber a1 is arranged in the middle of the block a0, th...

Embodiment 2

[0030] see Figure 1-5, the present invention provides a technical solution for an anti-leakage self-sealing valve: its structure includes: valve body 1, bolt 2, nut 3, valve cover 4, handle 5, valve stem 6, piston 7, the top of the valve body 1 passes through The bolt 2 is connected with the valve cover 4, the top of the valve cover 4 is connected with the nut 3, the piston 7 is arranged in the valve body 1 and connected with the bottom of the valve stem 6, and the top of the valve stem 6 passes through the nut 3 and is connected There is a handle 5, the piston 7 includes a fixed block a and a movable block b, the top of the fixed block a is connected with the valve stem 6, the bottom of the fixed block a is connected with the movable block b, and the fixed block a includes a block Body a0, lifting chamber a1, chute a2, slider a3, pole a4, spring member a5, pull cord a6, connecting rod a7, lifting block a8, the lifting chamber a1 is arranged in the middle of the block a0, the...

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Abstract

The invention discloses a leakage-proof self-sealing valve. The leakage-proof self-sealing valve structurally comprises a valve body, a bolt, a nut, a valve deck, a handle, a valve rod and a piston. The top of the valve body is connected with the valve deck through the bolt, the nut is connected to the top of the valve deck, the piston is arranged in the valve body and connected with the bottom of the valve rod, and the top of the valve rod penetrates through the nut and is connected with the handle. The piston comprises a fixed block and a movable block, the top of the fixed block is connected with the valve rod, the bottom of the fixed block is connected with the movable block, the fixed block comprises a block body, a lifting cavity, sliding grooves, sliding blocks, supporting rods, a spring piece, a pull rope, a connecting rod and a lifting block, the lifting cavity is formed in the middle of the block body, the sliding grooves are formed in the two sides of the lifting cavity correspondingly, and the sliding grooves are formed in the bottom of the block body. The leakage-proof self-sealing valve has the beneficial effects that through the design of the piston, the lower portion of the piston can be provided with a space for downward movement during closing, a through hole of the valve body can be blocked through the falling effect of gravity, and leakage is avoided.

Description

technical field [0001] The invention relates to the field of valves, in particular to a leakage-proof self-sealing valve. Background technique [0002] Valves are the control components in the fluid delivery system. They have the functions of cut-off, adjustment, diversion, prevention of reverse flow, pressure stabilization, diversion or overflow pressure relief. Valves can be used to control air, water, steam, various corrosive media, mud, etc. , oil, liquid metal and radioactive medium and other types of fluid flow, according to the valve material is also divided into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, duplex steel valves, plastic Valves and non-standard custom valve materials. [0003] Some of the valves in the prior art use rotation to open and close. Due to the cooperation of the screw and the nut, the angle of rotation is limited, and the sealing piston will wear out aft...

Claims

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Application Information

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IPC IPC(8): F16K3/00F16K3/24F16K3/314
CPCF16K3/00F16K3/24F16K3/314
Inventor 刘燕清
Owner 刘培芬