Self-closed check valve

A check valve, self-closing technology, applied in the direction of valve details, control valves, valve devices, etc., can solve the problems of unreliable use, failure to close in time, waste of energy, etc., to improve reliability and prevent fluid backflow , Turn on the fast and labor-saving effect

Inactive Publication Date: 2015-09-30
JIANGSU JIANGZHOU VALVE MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pneumatic guns, pneumatic hammers, hydraulic hammers and other equipment are widely used in factories. The switch of these pneumatic or hydraulic equipment is essentially a check valve, but the check valve in the prior art does not have an automatic closing structure, and it needs to rely on external equipment to close the valve. Close the valve, the structure is more complicated, the use is unreliable, there is no fool-proof function, it cannot be closed in time, and more energy is wasted

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Embodiment Construction

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0020] The advantages of the self-closing check valve of the present invention are: it has a spring, which can automatically close the valve plate, which improves the reliability of the entire check valve and prevents the fluid from flowing backward. At the same time, it has a lever structure composed of handles, which can be opened quickly and labor-saving .

[0021] Such as figure 1 , figure 2 As shown, a self-closing check valve includes a valve casing 1 and a plunger 2, and the plunger 2 is slidably connected with the valve casing 1, as figure 2 , image 3 As shown, the valve casing 1 is provided with a liquid inlet pipe 11, a liquid out...

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Abstract

The invention discloses a self-closed check valve which comprises a valve casing and a plunger, the plunger is connected with the valve casing in a sliding mode, the valve casing is provided with a liquid inlet pipe, a liquid outlet pipe and a hole shoulder, the hole shoulder is arranged between the liquid inlet pipe and the liquid outlet pipe, the plunger is provided with a valve plate, the self-closed check valve further comprises a spring and a sealing cover, one end of the spring is connected with the valve plate, the other end of the spring is connected with the sealing cover, and the sealing cover is connected with the valve casing. The self-closed check valve has the advantages that the spring is arranged, the valve plate can be closed automatically, the reliability of the whole check valve is improved, and backflow of fluid is prevented; meanwhile, a lever structure formed by a handle is arranged, so that opening is rapid and effortless.

Description

technical field [0001] The invention relates to a check valve, more precisely a self-closing check valve. Background technique [0002] Pneumatic guns, pneumatic hammers, hydraulic hammers and other equipment are widely used in factories. The switch of these pneumatic or hydraulic equipment is essentially a check valve, but the check valve in the prior art does not have an automatic closing structure, and it needs to rely on external equipment to close the valve. Closing the valve has a complicated structure, is unreliable in use, does not have a fool-proof function, cannot be closed in time, and wastes more energy. Contents of the invention [0003] The present invention mainly solves the technical problems existing in the prior art, thereby providing a lever structure with a spring, which can automatically close the valve plate, improves the reliability of the entire check valve, prevents fluid backflow, and has a handle , open the fast and labor-saving self-closing che...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/02F16K21/06F16K31/60
CPCF16K15/18F16K15/025F16K21/06F16K31/602
Inventor 洪基泽
Owner JIANGSU JIANGZHOU VALVE MFG
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