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Check valve

A one-way valve, valve body technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve problems such as penetration and sealing effect is not ideal, and achieve the effect of reliable airtight structure

Inactive Publication Date: 2013-12-18
CHANGXING GOLD RUN WAS MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the spools used for sealing in one-way valves generally use the sealing end of the spool to resist the channel of the cavity. This kind of sealing effect is not ideal. When the pressure reaches a certain value, there will be leakage.

Method used

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Embodiment Construction

[0017] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0018] like Figure 1 to Figure 6 As shown, the one-way valve of this embodiment includes an upper valve body 1 and a lower valve body 4 connected to the upper valve body 1, the upper valve body 1 is provided with a cylindrical upper valve cavity 10 on the central axis, and the lower valve body 1 The valve body 4 and the bottom of the upper valve body 1 form a lower valve cavity 40, the lower valve cavity 40 is provided with a valve core seat 41, the valve core seat 41 is inserted with the valve core 2, and the bottom of the upper valve cavity 10 is provided with a tapered The valve core 2 includes a circular frustum 20 that matches the conical opening of the upper valve chamber 1, and the top of the circular frustum 20 is provided with a cylindrical head 21, and the cylindrical head 21 is connected to the cylindrical surface behind the conical op...

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Abstract

The invention discloses a check valve which comprises an upper valve body and a lower valve body. The lower valve body is connected with the upper valve body, a cylindrical upper valve cavity is arranged on the central axis of the upper valve body, a lower valve cavity is formed by the lower valve body and the bottom of the upper valve body in an enclosed manner, a valve spool seat is arranged in the lower valve cavity, a valve spool is inserted in the valve spool seat, a conical opening is formed in the bottom of the upper valve cavity, the valve spool comprises a circular truncated cone matched with the conical opening of the upper valve cavity, a cylindrical head is arranged on the top of the circular truncated cone and is matched with a cylindrical cavity at the rear of the conical opening of the upper valve cavity, a stepped shaft is arranged at the lower end of the valve spool, the lower end of the stepped shaft is inserted into the valve spool seat, and a spring is arranged between the stepped shaft and the valve spool seat. Compared with an existing check valve with a valve spool abutted to a cavity, the check valve has the advantages that a cavity is of a cylindrical structure with the conical opening, the circular truncated cone which is matched with the conical opening is arranged at a seal end of the valve spool, and the cylindrical head is arranged on the top of the valve spool, so that the valve spool can be deeply arranged in the cavity when sealed, and a reliable sealed structure can be formed.

Description

technical field [0001] The invention relates to a connection valve, in particular to a one-way valve. Background technique [0002] At present, most of the valve cores used for sealing in one-way valves generally use the sealing end of the valve core to resist the channel of the cavity. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a one-way valve with better sealing effect. [0004] The technical solution of the present invention is: a one-way valve, including an upper valve body and a lower valve body connected with the upper valve body, a cylindrical upper valve cavity is arranged on the central axis of the upper valve body, and the lower valve body is connected with the upper valve body. The bottom of the upper valve body encloses the lower valve chamber, the lower valve chamber is provided with a valve core seat, the valve core seat is inserted with a valve core, the bottom of the upper valve chamber is p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/06
Inventor 吴建丰
Owner CHANGXING GOLD RUN WAS MACHINERY
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