Leakage prevention exhaust valve

A technology for exhaust valves and anti-leakage, applied to valve details, safety valves, balance valves, etc., can solve problems such as economic loss, water leakage, damage to valve well earthworks, etc.

Inactive Publication Date: 2012-10-10
张朝阳 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Existing exhaust valves used in pressurized water supply pipelines usually have an anti-leakage function. However, when the anti-leakage s

Method used

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  • Leakage prevention exhaust valve

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Embodiment Construction

[0018] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0019] like figure 1 Shown, a kind of anti-leakage exhaust valve, it comprises exhaust valve and buoyancy check valve, and described exhaust valve is arranged in the valve body of described buoyancy check valve, and the valve of the valve body lower part of described buoyancy check valve The port is sealingly connected with the main valve cavity 2 of the exhaust valve. Here, the sealing connection adopts threaded connection and other applicable live connections, one is to play a sealing role to prevent leakage; the other is to be easy to disassemble and easy to maintain.

[0020] The buoyancy check valve includes a valve body consisting of a valve cylinder 17 and a valve cylinder sealing disc 18 sealingly arranged on the upper part of the valve cylinder 17, an exhaust cylinder 20 with a sealing disc baffle 19 arranged on the upper edge, ...

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Abstract

The invention provides a leakage prevention exhaust valve. The exhaust valve comprises an exhaust valve and a buoyancy check valve, wherein the exhaust valve is arranged in a body of the buoyancy check valve; and the opening on the lower part of the body of the buoyancy check valve is hermetically connected with the main valve cavity of the exhaust valve; the buoyancy check valve comprises a valve body, an exhaust cylinder and a floating ball; the valve body consists of a valve cylinder, and a valve cylinder seal disc hermetically arranged on the upper part of the valve cylinder; the upper edge of the exhaust cylinder is provided with a seal disc baffle; the floating ball is arranged on the lower part of the exhaust cylinder; the long cylindrical valve cylinder replaces a valve shaft; an insulation layer is arranged outside the valve cylinder; an exhaust cylinder hole is formed on the valve cylinder seal disc, and the exhaust cylinder is arranged in the exhaust cylinder hole; a vertical exhaust slot hole is formed in the lateral wall of the exhaust cylinder; and a cylinder hole seal ring is sleeved on the lower part of the exhaust cylinder. The leakage prevention exhaust valve has the advantages of scientific design, double leakage prevention functions and a shaft-free frozen prevention function.

Description

technical field [0001] The invention relates to an exhaust valve, in particular to an anti-leakage exhaust valve for preventing secondary leakage in a pressurized water supply pipeline. Background technique [0002] Existing exhaust valves used in pressurized water supply pipelines usually have an anti-leakage function. However, when the anti-leakage structure of the exhaust valve fails, water will still leak out, destroying the earthworks around the valve well, resulting in to great economic loss. [0003] In order to solve the above existing problems, people have been seeking an ideal technical solution. Contents of the invention [0004] The purpose of the present invention is to address the deficiencies of the prior art, thereby providing a leak-proof exhaust valve with scientific design, double leak-proof function, and well-free anti-freezing function. [0005] In order to achieve the above object, the technical solution adopted by the present invention is: an anti-...

Claims

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Application Information

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IPC IPC(8): F16K17/18F16K31/18
Inventor 许攸
Owner 张朝阳
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