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Explosion-proof starting switch

A technology for starting switches and explosion-proof cables, which is applied in the direction of electric switches, electrical components, circuits, etc. It can solve the problems that explosion-proof starting switches cannot meet the explosion-proof environment and protection level, poor shock resistance, complex structure, etc., and achieve good explosion-proof effect and increase protection Hierarchical, structured effects

Pending Publication Date: 2020-05-19
佳力防爆车辆制造(山东)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects that the existing explosion-proof start switch cannot meet the explosion-proof environment and protection level, and most of them have poor shock resistance, easy to get stuck, and have complex structures, and provide a good explosion-proof environment. Shock resistance, simple structure, light weight, easy to implement, more suitable for explosion-proof start switch for most explosion-proof vehicles

Method used

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0041] Such as Figure 1-3 As shown, the explosion-proof starting switch includes a housing 100 , an end cover 200 , a starting switch 300 , a lock cylinder sleeve 400 , a lock cylinder 500 , an extension rod 600 , and an explosion-proof cable entry device 700 .

[0042] Housing 100 as Figure 6-8 As shown, it is cylindrical, with one end closed and the other open. A threaded through hole 101 is provided on the side wall adjacent to the closed end, and a threaded blind hole 102 is provided on the end surface of the open end. A slope surface 103 connecting the inner wall 106 and the end surface is provided; in addition, a connecting ear 104 is fixed on the side wall, and the housing can be fixedly assembled on a corresponding position on the vehicle through the connecting ear. The inner wall of the housing is cleaned and coated with insulating varni...

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Abstract

The invention discloses an explosion-proof starting switch, belongs to an explosion-proof vehicle part, and solves the problems that an existing explosion-proof starting switch cannot meet the requirements of an explosion-proof environment and a protection level, and most explosion-proof starting switches are poor in earthquake resistance, easily blocked and complex in structure. An end cover anda housing are fixedly assembled, and a first explosion-proof joint surface is formed between the end cover and the housing; an inner cavity is formed between the end cover and the housing; a lock cylinder sleeve is fixedly assembled on the end cover; a second explosion-proof joint surface is formed between the lock cylinder sleeve and the end cover; the starting switch is located in the inner cavity and fixedly assembled with the lock cylinder sleeve; a lock cylinder is assembled in the lock cylinder sleeve, and a connecting rod is connected between the lock cylinder and the starting switch; athird explosion-proof joint surface is formed between the connecting rod and the lock cylinder sleeve; an explosion-proof cable leading-in device is fixedly assembled on the housing; and the startingswitch is connected with the cable and led out of the inner cavity through the explosion-proof cable leading-in device. According to the scheme, a good explosion-proof effect can be achieved, and theprotection grade can be increased; and the explosion-proof starting switch has good shock resistance, and is simple in structure is simple, light and convenient, convenient to implement and suitablefor most explosion-proof vehicles.

Description

technical field [0001] The invention belongs to an important part of an explosion-proof vehicle, and in particular relates to an explosion-proof starting switch for an explosion-proof forklift connected with an electrical system. Background technique [0002] The explosion-proof grade of the existing explosion-proof forklift is ExsdⅡBT4 (the meaning is: S stands for special type, d stands for flameproof type, IIB stands for flammability or vapor level, T4 stands for temperature group (135°C)). Therefore, the explosion-proof level of the explosion-proof start switch equipped with the explosion-proof forklift must also meet or exceed ExsdⅡBT4. The existing explosion-proof start switches cannot meet the explosion-proof environment and protection level, and most of them have poor shock resistance, are easy to get stuck, and have complex structures, so they are not very suitable for explosion-proof forklifts. Contents of the invention [0003] The technical problem to be solve...

Claims

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Application Information

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IPC IPC(8): H01H27/06H01H9/04
CPCH01H9/042H01H27/06
Inventor 陆海峰汪辰
Owner 佳力防爆车辆制造(山东)有限公司
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