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Double packing seal valve

A double packing and valve technology, applied in shaft seals, valve details, valve devices, etc., can solve the problems of general sealing effect, packing and falling off, poor sealing effect, etc., to achieve good sealing effect, increase service life, and prevent falling off. Effect

Inactive Publication Date: 2018-03-23
南通鑫农阀门科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sealing packing of the traditional structure has a mediocre sealing effect on the connecting rod, and at the same time, the packing and falling off often occur, resulting in a poor sealing effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0011] In the embodiment of the present invention, a double packing sealing valve includes a main body 1 and a connecting rod 2, the connecting rod 2 passes through the assembly mechanism on the main body 1, and the joint between the connecting rod 2 and the main body 1 has a circle Annularly distributed sealing packing cavity, the sealing packing cavity is provided with a first sealing packing 5 and a second sealing packing 6, and an annular sealing gasket 7 is arranged betwe...

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PUM

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Abstract

The invention discloses a double packing seal valve which comprises a main body part and a connection rod. The connection rod penetrates through an assembling mechanism on the main body part, the matched position of the connection rod and the main body part is provided with a seal packing cavity distributed in an annular shape, first seal packing and second seal packing are arranged in the seal packing cavity, an annular seal pad is arranged between the first seal packing and the second seal packing, and the upper side and the lower side of the annular seal pad are provided with polygonal protrusions. The seal structure of a traditional double packing valve is improved, the annular seal pad with the protrusions is additionally arranged between the two kinds of packing, the contact area between the seal pad and the packing is increased, accordingly, friction force between the seal pad and the packing is increased, the whole valve is more stable, the seal effect is better, disengagementcan be prevented in the using process, and the service life of equipment is prolonged.

Description

technical field [0001] The invention relates to the field of packing valves, in particular to a double packing sealing valve. Background technique [0002] The traditional double packing valve includes a main body and a connecting rod, the connecting rod passes through the assembly mechanism on the main body, and the joint between the connecting rod and the main body is provided with annularly distributed sealing packing. However, the sealing packing of the traditional structure has a mediocre sealing effect on the connecting rod, and the phenomenon of packing and shedding often occurs at the same time, resulting in a poor sealing effect. Contents of the invention [0003] The purpose of the present invention is to provide a double packing sealing valve to solve the problems raised in the above background technology. [0004] To achieve the above object, the present invention provides the following technical solutions: [0005] A double-packing sealing valve, including a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K41/02
CPCF16K41/02
Inventor 程海霞
Owner 南通鑫农阀门科技有限公司