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Anti-explosion junction device good for preventing electrified wrong opening

An explosion-proof wiring and accidental opening technology, applied in the direction of electrical components, etc., can solve the problems of junction box sealing failure, unfavorable safety production, live detachment of the shell, etc., and achieve the effect of preventing electric false opening

Inactive Publication Date: 2014-10-22
SICHUAN TIANWEI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the junction box in the above-mentioned prior art is likely to be charged and detached from the casing due to illegal operation in actual use, that is, the junction box seal fails, so that the junction head is directly exposed to the atmospheric environment, causing extreme damage to the explosive environment that is prone to occur in coal mines. Great safety threat, extremely unfavorable to safe production, the invention provides an explosion-proof wiring device that is beneficial to prevent accidental opening of charged

Method used

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  • Anti-explosion junction device good for preventing electrified wrong opening
  • Anti-explosion junction device good for preventing electrified wrong opening
  • Anti-explosion junction device good for preventing electrified wrong opening

Examples

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Effect test

Embodiment 1

[0033] Such as Figure 1 to Figure 7 , an explosion-proof wiring device that is beneficial to prevent mis-opening when charged, includes a groove-shaped base 1 and an upper cover 4 connected with the base 1 by bolts or screws, and a wiring cavity 11 is formed between the base 1 and the upper cover 4. At least one threading pipe 3 is also fixed on the side of the base 1, and a wiring part 2 is also arranged in the wiring cavity 11, and the wiring part 2 includes an incoming line side 21, an outgoing line side 22 and a conductive strip 6. Both the incoming line side 21 and the outgoing line side 22 are provided with at least one contact 24, and the contacts 24 on the incoming line side 21 and the contacts 24 on the outgoing line side 22 are symmetrically arranged in pairs;

[0034] Also be fixed with guide bar 7 on described loam cake 4, be also provided with the screw rod 9 that becomes screw connection with it on the loam cake 4, described screw rod 9 is parallel with the axis...

Embodiment 2

[0038] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 7 , because the base 1 and the upper cover 4 are mostly made of plastic materials in the prior art, no matter for safety considerations or material saving considerations. Failure, the base 1 is fixed with a plurality of threaded seats 12 for connecting the base 1 and the upper cover 4 with bolts or screws, and the threaded seats 12 are all internal threaded metal sleeves embedded in the base 1. In this embodiment The threaded seat 12 is a copper sleeve provided with internal threads.

Embodiment 3

[0040] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 7 , in order to ensure the sealing performance between the base 1 and the upper cover 4 , a housing sealing ring is also provided between the connecting end faces of the base 1 and the upper cover 4 .

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Abstract

The invention discloses an anti-explosion junction device good for preventing electrified wrong opening. The anti-explosion junction device good for preventing electrified wrong opening comprises a base and an upper cover, wherein the base is also provided with a conduit; a wiring part is also arranged in a wiring cavity; the wiring part comprises a wire incoming side, a wire outgoing side and a conducting strip; contacts are arranged on both the wire incoming side and the wire outgoing side; a guide rod and a screw rod are fixed on the upper cover; the conducting strip comprises an insulating base body and a metal strip; the screw rod is also provided with a locking nut; a sealing ring is also arranged between the locking nut and the upper cover; the conduit comprises a wire leading barrel, a differential-diameter through hole in the wire leading barrel, an inner screw thread arranged on one end of the differential-diameter through hole, a sealing pad, a compressing nut, and through holes on both the sealing pad and the compressing nut; the wire leading barrel is also provided with an outer screw thread; a locking bolt is arranged on the outer screw thread; the wire leading barrel is also provided with a bump for protruding with respect to the outer wall. The anti-explosion junction device good for preventing electrified wrong opening has good anti-explosion performance, fast connecting speed of cable joints and good connection stability of the wire joints, and is suitable for anti-explosion connection of cables within a certain wire diameter range.

Description

technical field [0001] The invention relates to a protective device for electric wires and cables, in particular to an explosion-proof wiring device which is beneficial to prevent accidental opening when charged. Background technique [0002] The underground environment of coal mines is special, and there are flammable gases and dusts. Once the above-mentioned gases and dusts reach the explosion limit and encounter any electric sparks, it is very easy to cause serious production safety accidents. Therefore, all kinds of communication, monitoring, instrumentation and automation in mines It is particularly important for system equipment such as explosion-proof function. [0003] Underground coal mines have many lighting facilities and power equipment, and junction boxes are indispensable equipment in the process of zero-time long line and cable wiring. In actual use, the above junction box is prone to electrification and detachment due to illegal operation, that is, the junct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/08H02G3/16
Inventor 杨德志余盛明陈和兵刘原平
Owner SICHUAN TIANWEI ELECTRONICS
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