CN2413400Y

CN2413400Y - Fully sealed current-conducting rod connecting member

Info

Publication number: CN2413400Y
Application number: CN 00202859
Authority: CN
Inventors: 余胜全
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-03
Filing date: 2000-02-03
Publication date: 2001-01-03
Anticipated expiration: 2010-02-03

Abstract

The utility model discloses a fully sealed conductive rod connecting component which comprises a conducting rod, a bushing, a wiring connection sleeve, a sealing cover, an upper connecting terminal and a lower connecting terminal. The utility model is characterized in that the inner hole of the bushing is a conical hole and is connected with the conducting rod via an inner conical elastomer, positioning nuts and pressing nuts, and a cable sleeve can fix electric wires or cables via a middle sleeve. The utility model has the advantages of simple structure, good insulating property and sealing property, reliable work and long service life.

Description

Hermetically sealed conducting rod coupling components

The utility model belongs to the introduction lead-out wire insulation assembly of fully-sealed electric current conductor.

As hermetically sealed conducting rod coupling components, most important should be its insulation and sealing.The inventor discloses a power equipment insulating sleeve patent (patent No. ZL97219797) in Patent Office of the People's Republic of China, this assembly comprises conducting rod, by the intermediate sleeve that is enclosed within the conducting rod outside, the outside has on the elastic sealed body of tapering and the outer garden and has full skirt, the sleeve pipe of mounting flange and assembling tapering bonds together the assembled casing that is constituted, the upper end of conducting rod joins by binding post and the electric wire or the cable of being come in by the opening of the cable cover that plays dustproof effect, and the sealing of assembled casing and transformer-cabinet is to finish by the conical contact face of elastic sealed body; The sealing of conducting rod and assembled casing is to reach by being welded in ring flange on the conducting rod and elastic sealed body and three road rubber seal.The insulating sleeve of this structure than its formerly technology very big progress has been arranged.But also there is following shortcoming in it: at first, this insulating sleeve is exposed in the atmosphere in the binding post and the joining part of electric wire of transformer outside, and new-type improvement transformer is to be placed on the ground, because the intervention of toys such as mouse is easy to make the electric wire or the cable that expose to cause short circuit.This type of accident has taken place a lot of, loses very big.In addition because the insulating sleeve that is combined into one, its complex structure, its sealing number of plies is also many, so its production technology also becomes complicated, and its cost also can rise certainly.

Shortcoming in view of above-mentioned prior art existence, the purpose of this utility model provides a kind of novel hermetically sealed conducting rod coupling components, the electric wire that its conducting rod and casing outside connected or the exposed part of cable are in sealing and the state of insulation, and make its designs simplification, reduce production costs, also make its reliable operation, life-span long.

The hermetically sealed conducting rod coupling components of the utility model comprises conducting rod, be enclosed within its outer garden, conducting rod outside and have full skirt, the sleeve pipe of mounting flange and assembling tapering, be positioned at conducting rod and the sleeve above the sleeve pipe, the capping that is contained in above the sleeve reaches and joining upper connecting terminal in conducting rod two ends and lower connecting terminal, it is characterized in that: the endoporus of sleeve pipe is a bellmouth, its lower end is by inner conical elastomer with matching, setscrew nut and conducting rod link, the upper end links by clamp nut and conducting rod, cable cover links by screw thread and sleeve, matches with cable cover in the outer garden of intermediate sleeve, and endoporus matches with external electric wire or cable.Clamp nut described in the utility model has a metal washer and elastic washer between conducting rod and the sleeve pipe.Sleeve pipe described in the utility model, sleeve, capping and cable cover are to be made by the SMC material; The inner conical elastomer, elastic washer is made by polyurethane material; Intermediate sleeve is made by silicon rubber.

The utlity model has following advantage, because the screw thread pulling function between cable cover and the sleeve, be extruded with flexible intermediate sleeve, intermediate sleeve is blocked the end of the band strip of paper used for sealing of external electric wire or cable firmly by distortion, and itself and the joining exposed part of binding post are isolated from the outside, this had both been avoided the part of electric wire or cable exposure to make moist, and had avoided again because the line short that intervention caused of toy; Thereby owing to moving up and down sleeve pipe and conducting rod, an effect by setscrew nut and clamp nut between sleeve pipe and conducting rod make inner conical elastomer compressive deformation again to reach sealing function; If putting a metal washer and elastic washer again between conducting rod and sleeve pipe upper end and clamp nut, its sealing property is better, thereby this hermetically-sealed construction is not only simple but also bigger its manufacturing cost of reliability can be lower.The 3rd, because sleeve pipe is to be made by the SMC material, it is good insulating not only, and mechanical strength is also high, it can be as ceramic material because of being subjected to external force effect or temperature shock easily to cause fragmentation, so its reliable operation, life-span are long; This product applications is extensive, as is used for power transformer and power switch, reactor, and cabinet is on the power equipments such as box change station.

Accompanying drawing is the hermetically sealed conducting rod coupling components of a utility model assembly drawing.Among the figure: 1, capping 2, set bolt 3, sleeve 4, cable cover 5, intermediate sleeve

6, electric wire or cable 7, upper connecting terminal 8, binding post connected body

9, clamp nut 10, metal washer 11, elastic washer 12, conducting rod

13, sleeve pipe 14, construction bolt 15, packing ring 16, male-tapered elastomer

17, chassis 18, inner conical elastomer 19, setscrew nut

20, lower connecting terminal 21, packing ring 22, following hold-down nut

Now the utility model is described in further detail in conjunction with the accompanying drawings: as shown in the figure, conducting rod 12 made of copper is by near the setscrew nut 19 its lower end, near the inner conical elastomer of making by polyurethane 18 and its upper end clamp nut 9, metal washer 10 and the elastic washer of being made by polyurethane 11 have full skirt to outer gardens, sleeve pipe 13 being linked together tightly of mounting flange and assembling tapering, the lower end of sleeve 3 is enclosed within the upper end of sleeve pipe 13, and conducting rod 12 cover on the inside, the upper connecting terminal 7 that puts in from sleeve 3 sides is by binding post connector 8, set bolt 2 firmly is fixed on conducting rod 12 upper ends with binding post 7, capping 1 is to aim to install binding post 7, binding post connected body 8 and set bolt 2 and adopt, electric wire or cable 6 insert in the hole of upper connecting terminal 7, thread connection by cable cover 4 and sleeve 3 intermediate sleeve 5 crimps firmly the end of electric wire made from silicon rubber or cable 6 is waled, so, the exposed part of electric wire or cable 6 ends just is sealed in sleeve 3 the insides, the mounting flange of sleeve pipe 13 is by construction bolt 14, packing ring 15 is associated in the chassis 17 that is welded in advance on the casing together, the male-tapered elastomer of being made by polyurethane 16 is contained between the bellmouth on the assembling tapering of sleeve pipe 13 and chassis 17, to reach the sealing between casing and the utility model, lower connecting terminal 20 is fixed on the conducting rod 12 by packing ring 21 and following hold-down nut 22.Sleeve pipe 13, sleeve 3, capping 1 and cable cover are to be made by the SMC material.

Claims

1, a kind of hermetically sealed conducting rod coupling components, it has conducting rod (12), its the outer garden that is enclosed within conducting rod (12) outside has full skirt, the sleeve pipe (13) of mounting flange and assembling tapering, be positioned at conducting rod and the sleeve above the sleeve pipe (3), the capping (1) that is contained in above the sleeve reaches and joining upper connecting terminals in conducting rod two ends (7) and lower connecting terminal (20), it is characterized in that: the endoporus of sleeve pipe (13) is a bellmouth, its lower end is by inner conical elastomer with matching (18), setscrew nut (19) links with conducting rod (12), and the upper end links by clamp nut (9) and conducting rod (12); Cable cover (4) links by screw thread and sleeve (3), matches with cable cover in the outer garden of intermediate sleeve (5), and endoporus matches with external electric wire or cable.

2, hermetically sealed conducting rod coupling components according to claim 1 is characterized in that: in described clamp nut (9), a metal washer (10) and elastic washer (11) are arranged between conducting rod (12) and the sleeve pipe (13).

3, hermetically sealed conducting rod coupling components according to claim 1 and 2 is characterized in that: described sleeve pipe (13), and sleeve (3), capping (1) and cable cover (4) they are to be made by the SMC material; Inner conical elastomer (18), elastic washer (11) is made by polyurethane material; Intermediate sleeve (5) is made by silicon rubber.