CN2779691Y

CN2779691Y - Electric cable distribution box

Info

Publication number: CN2779691Y
Application number: CN 200520089870
Authority: CN
Inventors: 陶元国
Original assignee: LIAOYANG SHUNDA ELECTRICAL APPLIANCES EQUIPMENT FACTORY
Current assignee: LIAOYANG SHUNDA ELECTRICAL APPLIANCES EQUIPMENT FACTORY
Priority date: 2005-03-25
Filing date: 2005-03-25
Publication date: 2006-05-10
Anticipated expiration: 2015-03-25

Abstract

The utility model relates to a cable distribution box, which is composed of a plurality of cavities which are formed in a fire resistance insulating casing after the upper part and the lower part of the fire resistance insulating casing are clamped, U-shaped main conductors which can be used for placing main conducting wires and branch conducting wires and are arranged in the cavities, transition press blocks which are arranged in U-shaped grooves of the main conductors, and locking pressing blocks which are arranged on the transition press blocks, wherein the main conductors are provided with connection press boards which can be used for closing U-shaped openings; one end of a plurality of pressing screw poles respectively passes through the connection press boards and is pressed on the locking pressing blocks; the insulating casing is provided with a plurality of through holes which can be used for passing through the main conducting wires and the branch conducting wires. The utility model changes the limitation of the existing cable in the use aspect, and enlarges the application range of cables. Power supply systems all can adopt the connection of the main conducting wires and the branch conducting wires from a single core cable to a multi-core cable. The utility model has the advantages of easy use and safety, and can satisfy the requirements of different power supply systems of different use occasions.

Description

Cablehead

One, technical field: the utility model relates to a kind of junction box, particularly relates to a kind of junction box that cable joint connects in the electric power system that is applied to.

Two, background technology: at present, the power supply of the building that the skyscraper and the amount of damming are bigger, most bus duct ways of connecting that adopt, bus duct is to adopt segmentation to connect, and tie point is many, and accident potential is many, wherein has one section tie point to have fault to cause and send electrification, and bus duct cost height, it is big to take up room, and complexity is installed, and associate member is many, and prefabricated branch cable can not be made the bigger branch joint of the amount of damming, and the multicore cable joint is difficult to produce more.

Three, summary of the invention:

1, goal of the invention: the utility model provides a kind of cablehead, tie point was many when its purpose was to solve traditional bus duct connection, and installation is assorted again, failure rate is high, cost is high, the problem that big capacity multicore cable branch joint can not be produced when reaching prefabricated minute branch cable greatly takes up room.

2, technical scheme: the utility model is achieved through the following technical solutions:

A kind of cablehead is characterized in that: after the top of fire retardant insulating housing, bottom clamp, form some cavitys in it; Be provided with the leading body of the U type of placing main traverse line and offset in the cavity; Be provided with the transition briquetting in the U type groove of leading body; Be provided with the locking briquetting above the transition briquetting; Leading body is provided with the connection pressing plate that sealing U type opening is used; Some ends that compress double-screw bolt pass the connection pressing plate and are pressed on the locking briquetting; Insulation shell is provided with the some through holes that supply main traverse line and offset to pass.

Through hole is provided with the seal that fire-retardant material is made.

The inner surface of the U type groove of leading body is coated with tin layer structure.

The contact-making surface of transition briquetting and main traverse line and offset is coated with tin layer structure.

The contact-making surface of locking briquetting and offset is coated with tin layer structure.

Leading body is fixedly installed in the cavity by the base angle double-screw bolt of insulation shell bottom.

The double-screw bolt that compresses on each leading body is three.

3, advantage and effect: by the enforcement of technical solutions of the utility model, the cable that can solve traditional electric power system well is by after the bus duct connection, joint causes the failure rate height more, bus duct not only cost is high but also take up room big, install and mix again, limited the problem that cable uses in wider scope.The utility model changes traditional cable limitation in use, and the range of application that it has enlarged cable makes and can adopt in the electric power system by single-core cable to the main traverse line of multicore cable and being connected of offset, and is easy to use, safe and reliable.The utility model can be applicable to multiple occasion, can install at the vertical shaft metope, can also install at the ladder type crane span structure, also can in the grooved crane span structure, install, but level install and also can vertically install, can satisfy the needs of the different electric power systems of different use occasions.

Four, description of drawings: accompanying drawing 1 is the utility model structural representation;

Accompanying drawing 2 is the utility model vertical view.

Five, embodiment: the utility model is realized with following technology official documents and correspondence:

Among the figure 1, leading body; 2, connect pressing plate; 3, locking briquetting; 4, transition briquetting; 5, main traverse line; 6, offset; 7, insulation shell bottom; 8, insulation shell top; 9, seal; 10, high strength compresses double-screw bolt; 11, tin layer structure.

As accompanying drawing 1, shown in the accompanying drawing 2, the insulation shell that the utility model fire proofing is made is made of top 8 and bottom 7, four jiaos of the top 8 of insulation shell are provided with four set bolts that are fastenedly connected after clamping with the bottom, the top 8 of insulation shell, after the 7 fastening engagement assemblings of bottom, form five spaced cavitys in it, be provided with the leading body 1 of the U type of placing main traverse line 5 and offset 6 in the cavity, for guaranteeing electric conductivity, leading body 1 for the copper plate that conducts electricity very well after mould compression moulding, adding tin coating structure 11 at its U type groove inner surface forms, leading body 1 is fixedly mounted in the cavity by the base angle double-screw bolt that is provided with in 7 cavitys of insulation shell bottom, after the joint of main traverse line 5 or the position that is used for separated time are put into by the through hole that is provided with the U type groove relevant position of inner leading body 1 on the insulation shell, be arranged on the bottom of the U type groove of leading body 1, because both camber contacts, strengthened contact area, guaranteed conductivity, on main traverse line 5, be provided with transition briquetting 4 in the U type groove, transition briquetting 4 for copper plate by after the mould compression moulding, its one side that contacts with main traverse line 5 is provided with the arc groove that adapts with main traverse line 5, for better guaranteeing conductivity, be coated with tin layer structure on the arc groove surface, another side is provided with the branch's arc groove that adapts with offset 6, be coated with tin layer structure on branch arc groove surface, after offset 6 is put into by the respective through hole on the insulation shell, be arranged in branch's arc groove, be provided with locking briquetting 3 above the offset 6, the arc groove of locking briquetting 3 contacts with offset 6, arc groove surface at locking briquetting 3 also is coated with tin layer structure, the U type notch of leading body 1 is provided with the connection pressing plate 2 of sealing usefulness, high strength compresses double-screw bolt 10 1 ends and passes and connect pressing plate 2 and be pressed on the locking briquetting 3, high-intensity when compressing double-screw bolt 10 when screwing, it compresses locking briquetting 3, compress offset 6 and main traverse line 5 simultaneously, make offset 6 be connected conducting with main traverse line 5 by transition briquetting 4 and leading body 1, because corresponding each leading body 1 is provided with three high suppressing and compresses double-screw bolt 10, so the phenomenon of loose contact can not appear in main traverse line 5 and offset 6 relative fixed.Fire-retardant seal 9 on the through hole of turnover main traverse line 5 and offset 6 on the insulation shell is installed, play waterproof, fireproof effect, guaranteed the safety of in outdoor or other particular surroundings, using.

Claims

1, a kind of cablehead is characterized in that: after the top of fire retardant insulating housing (8), bottom (7) clamp, form some cavitys in it; Be provided with the leading body (1) of the U type of placing main traverse line (5) and offset (6) in the cavity; Be provided with transition briquetting (4) in the U type groove of leading body (1); Be provided with locking briquetting (3) above the transition briquetting (4); Leading body (1) is provided with the connection pressing plate (2) that sealing U type opening is used; Some ends that compress double-screw bolt (10) pass connection pressing plate (2) and are pressed on the locking briquetting (3); Insulation shell is provided with the some through holes that supply main traverse line (5) and offset (6) to pass through.

2, according to the cablehead described in the claim 1, it is characterized in that: through hole is provided with the seal (9) that fire-retardant material is made.

3, according to the cablehead described in the claim 1, it is characterized in that: the inner surface of the U type groove of leading body is coated with tin layer structure (11).

4, according to the cablehead described in the claim 1, it is characterized in that: transition briquetting (4) is coated with tin layer structure with the contact-making surface of main traverse line (5) and offset (6).

5, according to the cablehead described in the claim 1, it is characterized in that: locking briquetting (3) is coated with tin layer structure with the contact-making surface of offset (6).

6, according to the cablehead described in the claim 1, it is characterized in that: leading body (1) is fixedly installed in the cavity by the base angle double-screw bolt of insulation shell bottom (7).

7, according to the cablehead described in the claim 1, it is characterized in that: the double-screw bolt (10) that compresses on each leading body is three.