Fixing valve rod

A technology for fixing valves and valve stems, applied in sliding valves, valve details, valve devices, etc., it can solve problems such as affecting sealing, valve stem instability, valve seat and gate damage, etc., to extend service life, reduce tremor, Smooth running effect

Inactive Publication Date: 2016-01-06
SUZHOU SONGSHUN HARDWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The slab gate valve is sealed by pushing the gate plate to the outlet valve seat by the pressure of the medium at the valve inlet, so closing the slab gate valve tightly will not only fail to achieve a good sealing effect, but will damage the seat and gate plate and affect the seal. , at the same time there is a phenomenon of unstable valve stem, which is not conducive to the operation of the gate valve

Method used

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  • Fixing valve rod

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Embodiment Construction

[0012] The present invention is described below in conjunction with accompanying drawing.

[0013] attached figure 1 It is a fixed valve stem according to the present invention, including a valve body 1, a valve stem 2, a valve cover 3 and a balance seat 4; the valve stem 2 is installed inside the valve body 1, and both ends pass through the valve cover 3; The balance seat 4 is arranged inside the valve body 1 and passed through by the valve stem 2; the inside of the balance seat 4 is provided with a balance rod 5; the intersection of the valve stem 2 and the valve cover 3 is provided with a sealing ring 6; The outer surface of the valve stem 2 is provided with a wear-resistant ring 7; the part of the valve stem 2 and the valve cover 3 inside the valve body 1 is also provided with a fixed block 8; the fixed block 8 is provided with a top spring 9; The valve body 1 is made of stainless steel.

[0014] The solution of the present invention installs the balance seat 4 in the va...

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Abstract

The invention discloses a fixing valve rod which comprises a valve body, a valve rod body, a valve deck and a balance seat. The valve rod is installed in the valve body, and the two ends of the valve rod penetrate out of the valve deck; the balance seat is arranged in the valve body, and the valve rod body penetrates through the balance seat; balance rods are arranged in the balance seat; seal rings are arranged at the intersection positions of the valve rod body and the valve deck; the outer surface of the valve rod body is provided with a wearing ring; the portions, in the valve body, of the valve rod and the valve deck are provided with fixing blocks. According to the fixing valve rod, by installing the balance seat in the valve body, the valve rod body can be better fixed under supporting of the balance seat, the balance seat and the valve rod body are connected together, the balance seat is more smooth and steady when the fixing valve rod operates, trembling during operation of a sluice valve is reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to a fixed valve stem, which belongs to the technical field of flat gate valves. Background technique [0002] The slab gate valve is sealed by pushing the gate plate to the outlet valve seat by the pressure of the medium at the valve inlet, so closing the slab gate valve tightly will not only fail to achieve a good sealing effect, but will damage the seat and gate plate and affect the seal. , At the same time, there is an unstable valve stem, which is not conducive to the operation of the gate valve. Contents of the invention [0003] In view of the above-mentioned technical problems, the purpose of the present invention is to propose a fixed valve stem that prolongs the service life of the valve and has good stability. [0004] The technical solution of the present invention is achieved as follows: a fixed valve stem, including a valve body, a valve stem, a valve cover and a balance seat; the valve stem is installed inside th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/02F16K27/04F16K3/314
CPCF16K3/02F16K3/314F16K27/044
Inventor 归杏花
Owner SUZHOU SONGSHUN HARDWARE
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