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Labyrinth valve

A labyrinth and valve technology, applied in the direction of lift valves, valve devices, engine components, etc., can solve the problems of short service life and poor sealing of contact valves

Inactive Publication Date: 2017-04-26
封海涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem of short service life and poor sealing of contact valves, a labyrinth valve is designed, which adopts non-contact structure to avoid friction and reduce loss

Method used

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  • Labyrinth valve
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Examples

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Embodiment

[0014] Example: such as figure 1 , figure 2 As shown, the labyrinth valve is composed of a valve body 1, a valve seat 2, a valve core 3, a valve stem 4 and a valve cover 5. The valve body 1 is a cavity, the bottom of the valve body 1 is provided with a valve seat 2 , one end of the bottom of the valve body 1 is provided with an inlet 11 , and the other end is provided with an outlet 12 . The top of the valve body 1 is open, and a valve cover 5 is arranged at the opening to close the opening. A valve core 3 and a valve stem 4 are installed in the valve body 1 sequentially from bottom to top, and the valve core 3 and the valve stem 4 are connected. The valve stem 4 is installed and connected to the valve cover 5 , and the top end of the valve stem 4 protrudes from the installation hole outside the valve cover 5 .

[0015] A valve cover 42 is arranged on the top end of the valve rod 4 . The valve cover 42 is installed on the valve cover 5 , and a spring 43 is arranged inside ...

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Abstract

The invention relates to a switch valve applicable to a transmission pipeline, and specifically relates to a labyrinth valve. The labyrinth valve comprises a valve body, a valve seat and a valve element, wherein one end of each of two sides of the valve body is provided with an inlet, and the other end of each of the two sides of the valve body is provided with an outlet; the valve seat is arranged at the bottom part of the valve body; an empty chamber is formed in the valve body; an opening where a valve cover sealing opening is arranged is formed in the top end of the valve body; the valve element is mounted in the valve body; sealing teeth are arranged at the end, adjacent to the valve seat, of the valve element; vertical sealing teeth which are engaged with each other are arranged in the side surface, adjacent to the valve body, of the valve element; the valve element is connected with a valve rod which is mounted on the valve cover in a connecting manner; the top end of the valve rod extends out of the outer part of the valve cover through a mounting hole; the tail part of the valve rod can be pulled to drive the valve element to move. According to the labyrinth valve, no friction is generated between the valve element and the valve seat, so that the loss of the valve element can be avoided, and as a result, the service life of the valve can be prolonged; meanwhile, the labyrinth type intercepting effect is utilized to realize good intercepting and leaking resisting effect.

Description

technical field [0001] The invention relates to a switching valve used in a transmission pipeline, in particular to a labyrinth valve. Background technique [0002] The valve achieves cut-off and regulates fluid transmission through the spool switch. The existing common on-off valve adopts a contact hard seal, that is, the valve core is closed when it is in close contact with the valve seat, and it is opened when it is separated. Due to the long-term close contact between the valve core and the valve body, contact valves will generate friction when opening and closing, and the parts are easily worn out, resulting in short service life, poor sealing, and easy leakage. Contents of the invention [0003] In order to solve the problem of short service life and poor sealing of the contact valve, a labyrinth valve is designed, which adopts a non-contact structure to avoid friction and reduce loss. [0004] A labyrinth valve includes a valve body, a valve seat and a valve core....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/36
CPCF16K1/00F16K1/36
Inventor 封海涛
Owner 封海涛
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