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Magnetism isolation sleeve and electromagnetic valve thereof

A magnetic isolation sleeve and valve body technology, which is applied to valve details, valve devices, valve operation/release devices, etc., can solve the problems of solenoid valve seal failure, seal reliability decline, etc.

Active Publication Date: 2016-12-07
CHANGSHU JUNCHI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution uses a fixed ring, so that the isolation sleeve can be directly made of thin-walled metal pipes, saving materials and processing time, and the process is simple and easy to manufacture. However, this technical solution still cannot solve the problem of sealing failure and sealing failure of existing solenoid valves. Technical issues that reduce component reliability

Method used

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  • Magnetism isolation sleeve and electromagnetic valve thereof
  • Magnetism isolation sleeve and electromagnetic valve thereof
  • Magnetism isolation sleeve and electromagnetic valve thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1-2 as well as Figure 4 As shown, the magnetic isolation sleeve of the present invention is made of non-magnetic material, including an elastic flange 41, a first stepped hole 42, a shoulder 43 and a second stepped hole 44; one end of the second stepped hole 44 is blind The other end connects with the top of the first stepped hole 42 through a shoulder 43 to form a cup-shaped structure; an elastic flange 41 is provided extending outward on the peripheral edge of the bottom of the first stepped hole 42 . That is to say, the upper part of the magnetic isolation sleeve of the present invention adopts a cup-shaped structure, and the lower part adopts an elastic flanging method. The magnetic isolation sleeve and the valve seat of the solenoid valve are sealed by radial sealing, and the elastic flange of the magnetic isolation sleeve It plays the role of manufacturing error compensation during the assembly process of the solenoid valve and thermal deformatio...

Embodiment 2

[0031] Such as Figure 5 As shown, the magnetic valve of the present invention includes a housing 1, a coil assembly 2 installed in the housing, a magnetic sleeve 3, an armature 5, a first sealing ring 8, a magnetic seat 7 and the magnetic isolation described in Embodiment 1. Cover 4; wherein, the middle part of the magnetic permeable base 7 penetrates to form an inner hole, including a magnetic permeable base boss 71, an annular groove 73 is arranged on the magnetic permeable base boss 71, and extends outward at the bottom of the magnetic permeable base 7 There is a magnetic seat flange 74;

[0032]A magnetic sleeve 3 is installed on the above-mentioned coil assembly 2, and the magnetic sleeve 3 is axially positioned by the shoulder 43 of the magnetic isolation sleeve 4 through its lower end surface, and is positioned by the outer surface of the second stepped hole 44 of the magnetic isolation sleeve 4. Carry out radial positioning; the magnetic isolation sleeve 4 performs r...

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Abstract

The invention discloses a magnetism isolation sleeve and an electromagnetic valve thereof. The magnetism isolation sleeve comprises elastic folded edges, a first step hole, circular beads and a second step hole. One end of the second step hole is a blind end, and the other end of the second step hole is connected with the top end of the first step hole through the circular beads. The elastic folded edges are outwards arranged on the circumferential edge of the bottom end of the first step hole in a spaced and extending manner. The upper half part of the magnetism isolation sleeve is of a cup-shaped structure and the lower part of the magnetism isolation sleeve is of an elastic flanging type. The magnetism isolation sleeve and a valve seat of the electromagnetic valve are sealed in a radial sealing manner. The elastic folded edges of the magnetism isolation sleeve have the function of making error compensation in the electromagnetic valve assembling process and the function for making thermal deformation compensation for all parts in the use process, and meanwhile the requirements of the electromagnetic valve for conducting magnetism isolation, guiding and fixing on the magnetism isolation sleeve and achieving the function of a sealing assembly are met.

Description

technical field [0001] The invention relates to a magnetic isolation sleeve and a solenoid valve containing the magnetic isolation sleeve, belonging to the technical field of valve bodies. Background technique [0002] The magnetic isolation sleeve is a part on the solenoid valve that functions as magnetic isolation, guide and fixation of the sealing assembly. It is processed with non-magnetic material, which can effectively prevent magnetic flux leakage and make the seal work more effectively. Most of the currently used schemes use the method of sealing the bottom end face of the magnetic isolation sleeve or the method of welding the magnetic isolation sleeve and the magnetic conduction sleeve. The end face sealing scheme is adopted, the sealing ring not only plays the role of sealing, but also undertakes to compensate for the thermal deformation of the internal parts of the solenoid valve caused by the assembly manufacturing error and the environment and working temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 孙惠春韦修厦
Owner CHANGSHU JUNCHI SCI & TECH