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Method for mounting and dismounting breathing type safety valve

A disassembly method and safety valve technology, applied in the field of parts assembly, can solve the problems of thread pair strain, burns, etc., and achieve the effects of avoiding strain, easy operation, and convenient disassembly and assembly.

Inactive Publication Date: 2014-05-07
XI AN RAILWAY TRANSPORTATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Put the breathing safety valve upright, fix the valve body, rotate the bonnet forward or reverse, and install or remove the bonnet. secondary strains, even burns

Method used

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  • Method for mounting and dismounting breathing type safety valve
  • Method for mounting and dismounting breathing type safety valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] Combined with the structural schematic diagram of the existing breathing safety valve, the present invention provides a method for disassembling and assembling the breathing safety valve, and the method comprises the following steps:

[0020] 1) Turn the breathing safety valve upside down and fix the bonnet 2;

[0021] 2) To separate the valve body 1 and the bonnet 2 from the force of the spring 3:

[0022] 2.1) Press down the valve disc 4;

[0023] 2.2) The valve disc 4 compresses the spring 3 and separates the valve disc 4 from the valve body 1;

[0024] 2.3) The force between the valve body 1 and the bonnet 2 is released from the force of the spring 3.

[0025] 3) The positive rotation valve body 1 or the reverse rotation valve body 1 realizes the installation or removal of the safety valve.

[0026] In the present invention, the breathing safety valve is first placed upside down, the valve cap 2 is fixed, and a device is used to press down the valve flap 4, the v...

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Abstract

The invention relates to a method for mounting and dismounting a breathing type safety valve. The method for mounting and dismounting the breathing type safety valve comprises the following steps that 1), the breathing type safety valve is placed inversely, and a valve cap is fixed; 2), a valve body and the valve cap are separated away from the action of spring force; 3), the valve body is rotated forwardly or inversely to mount or dismount the safety valve. According to the method for mounting and dismounting the breathing type safety valve, mounting and dismounting are convenient, time and labor are saved, and a threaded pair can be prevented from being pulled and even burnt.

Description

technical field [0001] The invention belongs to the technical field of parts assembly, and relates to a disassembly and assembly method of a stainless steel thread pair with spring pre-tightening force, in particular to a disassembly and assembly method of a breathing safety valve. Background technique [0002] New breathing safety valve (see figure 1 shown) is a component on a railway tank car, mainly composed of a valve body, a bonnet, a valve disc and a spring. The valve body and bonnet are made of stainless steel. When the valve body and bonnet form a safety valve, they are connected by threads (see figure 2 shown), there is a compression spring during the period, so that the valve body and the bonnet are subject to the spring force during installation and disassembly. The existing disassembly and assembly breathing safety valve mainly has the following shortcomings: [0003] The breathing safety valve is placed in the positive direction, the valve body is fixed, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/00F16K17/04
CPCB25B27/26
Inventor 杨永涛高康峰
Owner XI AN RAILWAY TRANSPORTATION EQUIP