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Conveniently-connected mining anti-explosion connecting box

A mine explosion-proof and junction box technology, applied in electrical components and other directions, can solve the problems of junction box sealing failure, detonable environmental safety threats, and detachment of the shell when electrified, and achieve the effect of preventing wrong opening when electrified.

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. Big safety threat, extremely unfavorable to safe production, the invention provides a mining explosion-proof junction box that is convenient for wiring

Method used

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  • Conveniently-connected mining anti-explosion connecting box
  • Conveniently-connected mining anti-explosion connecting box
  • Conveniently-connected mining anti-explosion connecting box

Examples

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Effect test

Embodiment 1

[0032] Such as Figure 1 to Figure 7 , a mining explosion-proof junction box for easy wiring, including a groove-shaped base 1 and an upper cover 4 connected with the base 1 by bolts or screws, a wiring cavity 11 is formed between the base 1 and the upper cover 4, and the base At least one threading pipe 3 is also fixed on the side of 1, and a wiring part 2 is also arranged in the wiring cavity 11. Both the side 21 and the outlet side 22 are provided with at least one contact 24, and the contacts 24 on the inlet side 21 and the contacts 24 on the outlet side 22 are symmetrically arranged in pairs;

[0033]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 of guide bar 7, conducting bar 6 comprises insulating matrix and is arranged on The metal strip 61 on the insulating substrate, the conducting strip 6 is connected to the end o...

Embodiment 2

[0037] 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. Ineffective, the base 1 is fixed with a plurality of threaded seats 10 for connecting the base 1 and the upper cover 4 with bolts or screws. The threaded seats 10 are all internal threaded metal sleeves embedded in the base 1. In this embodiment Said threaded seat 10 is a copper sleeve provided with internal threads.

Embodiment 3

[0039] 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 a conveniently-connected mining anti-explosion connecting box. The conveniently-connected mining anti-explosion connecting box comprises a base and an upper cover. The base is provided with wire through tubes; a connecting unit is arranged inside a connecting cavity and comprises a wire inlet side, a wire outlet side and communicating stripes, wherein the wire inlet side and the wire outlet side are provided with contacts; the upper cover is fixedly provided with a guide rod and a screw; every communicating strip comprises an insulating base body and a metal stripe; every wire through tube comprises a wire lead barrel, a reducing through hole formed in the lead barrel, inner threads, a sealing gasket, a pressing nut, a sealing gasket and a through hole formed in the pressing nut, wherein the inner threads the sealing gasket, the pressing nut, the sealing gasket and the through hole are arranged at one end of the reducing through hole, the lead barrel is provided with outer threads which are provided with a locking bolt, and the lead barrel is also provided with protrusions protruded relative to the outer wall of the lead barrel. The conveniently-connected mining anti-explosion connecting box is good in anti-explosion performance, high in connecting speed of cable connectors, good in connecting stability of the cable connectors and applicable to anti-explosion connection of cables with diameters within a certain range.

Description

technical field [0001] The invention relates to a wire and cable protection device, in particular to a mining explosion-proof junction box which is convenient for wiring. 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 junction box seal fails, so that the junction h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/08H02G3/16
Inventor 陈建汪小婷刘原平余盛明
Owner SICHUAN TIANWEI ELECTRONICS
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