CN201805206U

CN201805206U - Plug-type cable terminal device

Info

Publication number: CN201805206U
Application number: CN2010202736036U
Authority: CN
Inventors: 陈星存; 何祥勇; 叶丽云; 李尧东; 李应发; 张小强; 麻清华; 钱师贵
Original assignee: SHANGYUAN ELECTRIC POWER SCIENCE TECHNOLOGY Co Ltd
Current assignee: SHANGYUAN ELECTRIC POWER SCIENCE TECHNOLOGY Co Ltd
Priority date: 2010-07-23
Filing date: 2010-07-23
Publication date: 2011-04-20
Anticipated expiration: 2020-07-23

Abstract

The utility model relates to a plug-type cable terminal device, which comprises an upper cover and a base, wherein the upper cover comprises an epoxy bushing, the base comprises a threaded sleeve, a tail pipe sealing pressed block, a tail pipe sealing rubber cushion, a conical support, a stress cone, a stop sleeve and an electrically-conductive rod, which are sequentially installed on stipulated positions of a cable conductor, the base also comprises a tail pipe, the conical support is provided with an upper supporting plate, a lower supporting plate and a screw rod which is arranged between the upper and the lower supporting plates, the epoxy bushing is fixed with the tail pipe through a standard piece, the stress cone adopts high-temperature vulcanized liquid silastic material, the screw rod on the conical support is provided with a hold-down spring, and the stress cone is always pushed against a conical arm of the epoxy bushing under the effect of the hold-down spring. The plug-type cable terminal device has the beneficial technological effects that: the terminal can be ensured to run safely for a long time, the service life can be improved, and the phenomenon such as the leakage can be avoided during the running process because of the dry-type structure terminal.

Description

The plug-in cable termination devices

Technical field

The utility model is specifically related to a kind of plug-in twisted polyethylene cable terminal installation.

Background technology

In electric power network, the plug-in cable termination is applicable to the jockey of power cable and high-tension transformer, because in actual use, generally usefulness all is the cable termination devices that has oil/tubing and casing or oil/gas bushing, this device phenomenons such as leakage takes place easily that are in operation, and the insulation pouring agent of being poured into a mould has been shortened useful life because of accelerate the aging problem of stress cone with the long-term contact of stress cone.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, and a kind of long service life, dry type plug-in cable termination devices easy for installation are provided.

For achieving the above object, the utility model adopts a kind of plug-in cable termination devices, comprise two parts of loam cake and base, wherein loam cake comprises epoxy bushing, base portion comprises thread bush, the tail pipe sealed briquette, the tail pipe O-ring seal, the awl holder, stress cone, stop cover and conducting rod also are installed on the assigned position of cable conductor sequentially successively, wherein said awl holder has upper and lower support plate and is arranged on screw rod between this upper and lower support plate, epoxy bushing and tail pipe fixedly mount by standard component, wherein said stress cone adopts high temperature vulcanized liquid silicon rubber material, screw rod in the described awl holder is provided with holddown spring, one end of this holddown spring is close to the lower surface of the upper backup pad of awl holder, the upper surface of the other end and lower supporting plate is close to, and is making stress cone all the time on the tapered arm near epoxy bushing under the effect of this holddown spring.

By to improvement of the technical scheme, because stress cone has adopted high temperature vulcanized liquid silastic, and in the awl holder of this terminal installation, be provided with holddown spring, the elastic force of this holddown spring makes on the stress cone tapered wall that leans against epoxy bushing tightly, overcome stress cone because the aging relaxation that brings, and disadvantages such as stress cone and the loose contact of cable outer semiconducting layer, guarantee this terminal installation energy long-time running, prolonged useful life greatly.

As further improvement, the utility model is installed with bolt at the tail pipe of cable termination devices and the end of epoxy bushing, can certainly be that standard components such as screw fixedly mount, offer an annular groove on the end face of this tail pipe, the external diameter of this annular groove is less than the air line distance between relative two bolts, promptly within the formed each other scope of each bolt, this annular groove is provided with sealing ring.

Description of drawings

Fig. 1 is the utility model embodiment general assembly drawing.

Fig. 2 is the front view of the utility model embodiment conducting rod.

Fig. 3 is the half sectional view of Fig. 2.

Fig. 4 is the half sectional view of epoxy bushing among the utility model embodiment.

Fig. 5 is the front view of stress cone among the utility model embodiment.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is the assembling assumption diagram of the utility model awl holder.

Fig. 8 is the front view of the utility model tail pipe.

Fig. 9 is the half sectional view of Fig. 8.

Figure 10 is the front view of tail pipe O-ring seal in the utility model.

Figure 11 is the left view of Figure 10.

Figure 12 is the front view of tail pipe sealed briquette among the utility model embodiment.

Figure 13 is the half sectional view of Figure 12.

Figure 14 is the front view of thread bush among the utility model embodiment.

Figure 15 is Figure 14 half sectional view.

Figure 16 is the front view of clamping screw among the utility model embodiment.

Figure 17 is the enlarged drawing at A place among Fig. 1.

Embodiment

Shown in Fig. 1-17, specific embodiment of the utility model is a kind of plug-in cable termination devices, comprise loam cake, base, GIS switch cubicle 1 and flange 7, wherein loam cake comprises an epoxy bushing 3, base portion comprises a thread bush 11, a sealing ring 8, a tail pipe sealed briquette 13, a tail pipe O-ring seal 14, an awl holder 6, a stress cone 5, stop 4 and conducting rods 2 of cover and a tail pipe 9, wherein said awl holder 6 has upper backup pad 61, lower supporting plate 62 and be arranged on the screw rod 63 between this upper and lower support plate and be arranged on holddown spring 16 on this screw rod 63, tail pipe 9 also fixedly mounts by standard component with epoxy bushing 3, its concrete erection sequence is as follows: get corresponding cable conductor 12 earlier, the outer layer insulation skin of cable conductor 12 is divested, be inserted in thread bush 11 successively, tail pipe sealed briquette 13 and tail pipe O-ring seal 14; Again awl holder 6, stress cone 5, stop cover 4 and conducting rod 2 are installed on the position of cable conductor 12 regulations sequentially; Again clamping screw 15 is installed in the awl holder 6, again tail pipe O-ring seal 14, tail pipe sealed briquette 13 and thread bush 11 is installed at last; After installing, will fit together parts such as all-in-one-piece cable conductor 12, conducting rod 2, stop cover 4, stress cone 5, awl holder 6, tail pipe 9, thread bush 11, tail pipe sealed briquette 13 and tail pipe O-ring seal 14 and epoxy bushing 3 and carry out connection; Install with bolt the end of tail pipe 9 and epoxy bushing 3, offer annular groove 91 on the end face of this tail pipe 9, the external diameter of this annular groove is less than the air line distance between bolt 92 and the bolt 93, and this annular groove is provided with sealing ring 8, makes it reach better sealing effectiveness; By screwing awl backing pressure tight screw rod 15 awl holder 6 is pressed on stress cone 5 on the epoxy bushing 3 again, to reach better insulation effect; After more than assembling finishes, with mounting flange 7 whole cable terminal and GIS switch cubicle 1 are carried out connection again, its dress jail is got final product with standard component.

Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.And these belong to conspicuous variation or the change that spirit of the present utility model amplified out and still are among the protection range of the present utility model.

Claims

1. plug-in cable termination devices, comprise two parts of loam cake and base, wherein loam cake comprises epoxy bushing, base portion comprises thread bush, the tail pipe sealed briquette, the tail pipe O-ring seal, the awl holder, stress cone, stop cover and conducting rod also are installed on the assigned position of cable conductor sequentially successively, base portion also comprises tail pipe, wherein said awl holder has upper and lower support plate and is arranged on screw rod between this upper and lower support plate, epoxy bushing and tail pipe fixedly mount by standard component, it is characterized in that: described stress cone adopts high temperature vulcanized liquid silicon rubber material, the screw rod of described awl holder is provided with holddown spring, one end of this holddown spring is close to the lower surface of the upper backup pad of awl holder, and the upper surface of the other end and lower supporting plate is close to.

2. plug-in cable termination devices according to claim 1, it is characterized in that: install with bolt the end of described tail pipe and epoxy bushing, offer an annular groove on the end face of this tail pipe, sealing ring and has been inserted on this annular groove in this annular groove position within the scope that each bolt forms each other.