CN2395447Y

CN2395447Y - Flame-proof type high voltage cable terminal box

Info

Publication number: CN2395447Y
Application number: CN 99225094
Authority: CN
Inventors: 曲登科
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-16
Filing date: 1999-09-16
Publication date: 2000-09-06
Anticipated expiration: 2009-09-16

Abstract

The utility model relates to a flame-proof type high voltage cable wire connecting box, which is the design and manufacturing technique of a wire connecting box. The flame-proof type high voltage cable wire connecting box is composed of a casing, a wire connecting terminal and a wire leading chamber; the wire connecting terminal is composed of a ceramic holder, a grooving screw bolt, a washer, a spring cushion, and a nut; the ceramic holder, the grooving screw bolt, the washer, the spring cushion, and the nut are assembled inside the casing; flame-proof surfaces are arranged among the casing, an upper cover and the wire leading chamber is formed by that a wire leading chamber body is provided with a wire pressing cushion ring, a sealing ring and a wire pressing flange plate. The utility model has the advantages of reasonable structure, convenient installation, little maintenance, low cost, safety, and low failure rate. The flame-proof type high voltage cable wire connecting box thoroughly solves the problems of large resistance, overheating, insulation carbonization, short circuit existing in a splicing type structure contact. The utility model can be used in both an intake entry and a return airway during coal mining.

Description

The flameproof high-voltage cable terminal box

The utility model belongs to the design and fabrication technology field of high-tension cable junction box structure.

At present, be applied under the coal mine, connect the flameproof high-voltage cable connector in 6 kilovolts of power cable power supply networks in the coal mining digging laneway, being made of housing, binding post and lead-in wire chamber, is to adopt plug in construction, and the plug degree of tightness is difficult to control, its complex structure, installation difficulty is big, wastes time and energy.The electricity plugging mode, technology does not pass a test, and contact resistance is big, and the energising back produces pressure drop, produces superheating phenomenon, causes the insulating base carbonization, short circuit occurs, and contact burning is serious, and accident is many, and maintenance capacity is big.

The purpose of this utility model provides a kind of being convenient to and installs, and contact resistance is little, the flameproof high-voltage cable terminal box of good insulation preformance.

The purpose of this utility model is achieved in that it by housing, and binding post and lead-in wire chamber constitute.Attaching line terminals ceramics seat, fluting bolt, pad, spring pad and nut in the housing, dress auxiliary connection terminal and interior ground stud, housing has loam cake, it between housing and the loam cake explosion suppresion surface, the lead-in wire chamber is a dress pad for fixing electric wire line in the lead-in wire cavity, sealing ring and line ball ring flange are explosion suppresion surface between lead-in wire cavity and the housing, and pour into epoxy resin lead-in wire cavity lead-in wire back.During wiring cable end is inserted in the otch, use spanner to compress and get final product.

The utility model has the advantages that rational in infrastructurely, easy for installation, maintenance capacity is little.It is big thoroughly to solve the plug in construction contact resistance, and it is overheated to produce, and problem of short-circuit appears in the insulation carbonization.Production cost is low, and is safe and reliable, and contact temperature rise is low, fault-free, advance, return airway all can use.

Below in conjunction with drawings and Examples this reality there be novel being elaborated:

Fig. 1 is the utility model structural representation.

Fig. 2 opens structural representation behind the loam cake for the utility model.

Fig. 3 is utility model wiring fluting bolt, nut structure schematic diagram.

This terminal box is by housing, and binding post and lead-in wire chamber constitute attaching line terminals ceramics seat 2 in the housing 1, fluting bolt 11, pad 12, spring pad 13 and nut 14, dress auxiliary connection terminal 9 and interior ground stud 10, housing has loam cake 3, and is fixing by bolt 4, is explosion suppresion surface between housing and the loam cake.The lead-in wire chamber is a dress pad for fixing electric wire line 6 in the lead-in wire cavity 5, and sealing ring 7 and line ball ring flange 8 are explosion suppresion surface between lead-in wire cavity and the housing, and pour into epoxy resin lead-in wire cavity lead-in wire back.Housing has external pile outward.Housing adopts steel plate to be welded, and the line ball chamber is made by seamless steel pipe.Meet the technical standard that national terminal box is carried out.

Claims

1, flameproof high-voltage cable terminal box, constitute by housing, binding post and lead-in wire chamber, it is characterized in that housing [1] interior attaching line terminals ceramics seat [2], fluting bolt [11], pad [12], spring pad [13] and nut [14], housing has loam cake [3], and is fixing by bolt [4], being explosion suppresion surface between housing and the loam cake, is explosion suppresion surface between lead-in wire cavity and the housing.

2, flameproof high-voltage cable terminal box according to claim 1, it is characterized in that dress auxiliary connection terminal [9] and interior ground stud [10] in the housing, the lead-in wire chamber is a dress pad for fixing electric wire line [6] in the lead-in wire cavity [5], sealing ring [7] and line ball ring flange [8], pour into epoxy resin lead-in wire cavity lead-in wire back, and housing has external pile outward.