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Novel guiding axle

A guide shaft, a new type of technology, applied in the direction of shafts, shafts and bearings, mechanical equipment, etc., can solve the problems of failing to meet the C-level explosion-proof standard, and achieve the effect of good sealing, strong pressure resistance, and absolute isolation

Inactive Publication Date: 2015-06-10
文静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing limit switches of pneumatic actuators need to have higher structural requirements for deflagration. At present, when most products have internal deflagration, the certification obtained is only Class B explosion-proof, and cannot meet Class C explosion-proof standards.

Method used

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  • Novel guiding axle

Examples

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Embodiment Construction

[0010] Such as figure 1 As shown, a new type of guide shaft is characterized in that it includes a body 1 and a sealing washer 2, the body 1 is made of alloy powder extruded, the upper end of the body 1 is provided with a groove 3, and the lower end of the body 1 is provided with a convex Block 4, the side wall of the body 1 is provided with an annular groove 5, and a sealing ring 6 is provided on the annular groove 5.

[0011] Finally, it should be noted that: the above-mentioned embodiment is only an example for clearly illustrating the present invention, rather than a limitation to the implementation mode. For those of ordinary skill in the art, other embodiments can be made on the basis of the above description. Changes or changes in different forms are not necessary and cannot be exhaustive for all implementations, and obvious changes or changes derived therefrom are still within the protection scope of the present invention.

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Abstract

The invention discloses a novel guiding axle. The novel guiding axle is characterized by comprising a body and a seal washer, wherein the upper end of the body is provided with a groove, the lower end of the body is provided with a lug, the sidewall of the body is provided with an annular groove, and a sealing ring is arranged on the annular groove. The novel guiding axle has good pressure resistance; when internal detonation occurs, the tightness of the seal washer on the guiding axle and a switch shell blast point is higher, better airtightness is achieved, and pressure self-sealing is realized; thus, requirements of C-grade explosion suppression are met and absolute isolation of internal detonation from the outside is guaranteed.

Description

technical field [0001] The invention relates to the field of pneumatic technology, in particular to a novel guide shaft. Background technique [0002] Existing limit switches of pneumatic actuators need to have higher structural requirements for deflagration. At present, when most products have internal deflagration, the certification obtained is only Class B explosion-proof, and cannot meet Class C explosion-proof standards. . Contents of the invention [0003] The purpose of the present invention is to provide a new guide shaft with simple structure. [0004] A new type of guide shaft, characterized in that it includes a body and a sealing washer, the upper end of the body is provided with a groove, the lower end of the body is provided with a bump, the side wall of the body is provided with an annular groove, and a sealing ring is provided on the annular groove. [0005] Further, the body is made by extrusion of alloy powder. [0006] Advantages of the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02
Inventor 文静
Owner 文静
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