CN2082040U

CN2082040U - Explosion-proof joint of electric cable with rubber protective layer

Info

Publication number: CN2082040U
Application number: CN 90214271
Authority: CN
Inventors: 苏秋世; 刘培立; 董致义; 郁洪轩; 李波
Original assignee: SHUIGUO FARM MACHINERY PLANT SHIZHONG DISTRICT ZAOZHUANG CITY
Current assignee: SHUIGUO FARM MACHINERY PLANT SHIZHONG DISTRICT ZAOZHUANG CITY
Priority date: 1990-08-28
Filing date: 1990-08-28
Publication date: 1991-07-31

Abstract

The utility model discloses a flexible explosion-proof joint of the electric cable with a rubber protective layer, composed of an inner core 1 with a through hole 5, openings 6 arranged on the outer surfaces of the through hole 5 and the inner core 1, a conducting wire joint 2 arranged in the through hole 5, a sleeve tube 3 arranged outside the inner core 1 and provided with the inner core together and sealing heads 4 arranged on the both ends of the sleeve tube 3. The utility model solves the defects that the joint of the traditional electric cable has heavy weight, high cost and inconvenient installation due to adopting a metal explosion-proof junction box and can be used as the explosion-proof joint on the underground power electric cable of the mine, having the advantages of explosion proofing, water proofing and rust proofing, also having the characteristics of simple laying, etc.

Description

Explosion-proof joint of electric cable with rubber protective layer

The utility model relates to a kind of rubber cover Seal of Cables formula Explosion proof joint that is used for.

In the rubber cover power cable laying task of down-hole, mine, traditional metal anti-explosion cable terminal box based on the consideration of explosion-proof security, has been adopted in the junction between two cables.This traditional Junction box assembly is that metal shell embeds potted component, the two ends of cable are enclosed in the box, in establish binding post can be with the corresponding path that connects into of the heart yearn of cable, thereby finish the connection of two cables.The major defect of metal anti-explosion cable terminal box is heavy, and wiring is trouble, and suspension arrangement need be set, and waterproof rustless property difference and cost are high.In addition, the installation work-hour of this metal anti-explosion cable terminal box is also than higher.Deficiency at traditional technical existence of metal anti-explosion cable terminal box the utility model proposes new improvement technical scheme.

Invention task of the present utility model is a design rubber cover cable Explosion proof joint a kind of waterproof good antirust property, that lay simple lightweight flexible structure.

Figure of description 1 is a structural representation of the present utility model.

Figure of description 2 is A-A profiles of the present utility model.

Invention thought of the present utility model is after cable core is fastenedly connected by terminal respectively, embeds in " lotus root shape " inner core respectively, puts outside sleeve pipe again, with end socket the fixing Explosion proof joint that forms is filled with sealing rubber cement envelope in the two ends, joint at last. Inner core, sleeve pipe and end socket are made by rubber-plastics material, thereby have finished preferably goal of the invention of the present utility model.

Now, structure of the present utility model is done description particularly, can implement in the hope of the common engineers and technicians in this area according to Figure of description.A kind of Explosion proof joint of rubber cover cable; the inner core 1 that has through hole 5 above it is characterized in that having; through hole 5 has slotted opening 6 with the outer surface of inner core 1; in through hole 5, be provided with the terminal 2 of pipe shape; the outside of inner core 1 has sleeve pipe 3 to be sleeved on inner core 1; have the end socket 4 that matches with it to constitute respectively at the two ends of sleeve pipe 3, inner core 1, sleeve pipe 3, end socket 4 have all adopted tartan to make.

The utility model is when installing and using; the rubber cover of cable 7 is peelled off; first one or both sides that end socket 4 and sleeve pipe 3 are inserted in cable successively; the cable core insulating barrier is peelled off; lead is corresponding one by one; penetrate respectively in the terminal, with the hand jointing clamp terminal is compressed with cable conductor again and be connected.The lead that crimping is intact is packed in the through hole 5 of inner core 1 by opening 6 respectively, again inner core 1 is drawn in the sleeve pipe 3, make inner core 1 on the centre position of sleeve pipe 3, and then be coated in the contact portion of cable and sleeve pipe and the inner surface of end socket respectively with the rubber seal rubber cement, behind the airing end socket and sleeve pipe being coincide is socketed into one, can use.

The utility model has the advantages that explosion-proof waterproof is antirust, in light weight, cost is low, lay simple, easily hang to have flexibility, thus safe and reliable, can reduce the complications damage at cable joint place.

During concrete enforcement of the present utility model, can consider that inner core adopts cylindrical shape, the cross section of top through hole can be geometries such as circular, oval, parallelogram or rhombus, with rhombus for well.Sleeve pipe adopts round tube shape, and its length is according to the long 20～80mm of the different comparable inner cores of specification of cable.Little 0.5～the 2mm of the comparable outside diameter of cable of microcephaly's internal diameter of end socket, the little 0.5～2mm of external diameter of the comparable sleeve pipe of major part internal diameter of end socket.Inner core, sleeve pipe, end socket can adopt synthetic rubber such as neoprene, butyl rubber, ethylene-propylene rubber to make.

Below with 6(mm) the power cable Explosion proof joint is example, specifically introduces a kind of embodiment.Inner core among this embodiment is of a size of φ 22 * 150mm, is symmetrically distributed with four through holes above, and the cross section of through hole is a rhombus, be of a size of 7 * 7mm, sleeve pipe is of a size of φ 25 * 170mm, and endoporus is φ 19mm, and end socket concentric reducer internal diameter is respectively φ 24 and φ 19mm.Inner core, sleeve pipe, end socket have adopted neoprene and the mold pressing of haloflex material to make.

Claims

1, a kind of Explosion proof joint of rubber cover cable; the inner core 1 that has through hole 5 above it is characterized in that having; through hole 5 has slotted opening 6 with the outer surface of inner core 1; in through hole 5, be provided with the terminal 2 of pipe shape; the outside of inner core 1 has sleeve pipe 3 to be sleeved on inner core 1; have the end socket 4 that matches with it to constitute respectively at the two ends of pipe box 3, inner core 1, sleeve pipe 3, end socket 4 have all adopted tartan to make.

2, according to the Explosion proof joint of the described rubber cover cable of claim 1, the cross section that it is characterized in that the through hole 5 on the inner core 1 can be geometries such as circular, oval, parallelogram or rhombus, with rhombus for well.

3,, it is characterized in that the tartan that inner core 1, sleeve pipe 3, end socket 4 adopt is neoprene, butyl rubber, ethylene-propylene rubber etc. according to the Explosion proof joint of the described rubber cover cable of claim 1.

4, according to the Explosion proof joint of the described rubber cover cable of claim 1, it is characterized in that inner core 1 adopts cylindrical shape, sleeve pipe 3 adopts round tube shape, and its length is according to the different comparable inner core 1 long 20～80mm of specification of cable.

5, according to the Explosion proof joint of claim 1,2,4 described rubber cover cables; it is characterized in that inner core 1 is of a size of φ 22 * 150mm; be symmetrically distributed with four through holes 5 above; the cross section of through hole 5 is a rhombus; be of a size of 7 * 7mm; sleeve pipe 3 is of a size of φ 25 * 170mm, and endoporus is φ 19mm.

6,, it is characterized in that the little 0.5～2mm of the comparable outside diameter of cable of microcephaly's internal diameter of end socket 4, the little 0.5～2mm of external diameter of the comparable cable sleeve 3 of major part internal diameter of end socket 4 according to the Explosion proof joint of the described rubber cover cable of claim 1.

7,, it is characterized in that large and small internal diameter of end socket 4 is respectively φ 24 and 19mm according to the Explosion proof joint of claim 1,6 described rubber cover cables.