CN103457229A

CN103457229A - Splicing sleeve

Info

Publication number: CN103457229A
Application number: CN2013104034163A
Authority: CN
Inventors: 宰红斌; 梁静; 王利红; 桑海彬; 秦志沁
Original assignee: SHANXI JINCHENG ELECTRIC POWER SUPPLY Co; State Grid Corp of China SGCC
Current assignee: SHANXI JINCHENG ELECTRIC POWER SUPPLY Co; State Grid Corp of China SGCC
Priority date: 2013-09-06
Filing date: 2013-09-06
Publication date: 2013-12-18

Abstract

The invention belongs to the field of wire connection device, and discloses a splicing sleeve particularly applied to connection of wire jumpers which do not bear tension or nonlinear pole towers in overhead electric power circuits. The splicing sleeve comprises an inner pipe, a long outer pipe installed on one side of the inner pipe and a short outer pipe installed on the other side of the inner pipe, wherein the two ends of the inner pipe are provided with conical tubes with expansion joints, and the long outer pipe is connected with the short outer pipe through threads. The splicing sleeve is simple in structure, reliable in connection, convenient to install and use, reusable and good in economic benefit, and wires are not heated or broken easily.

Description

A kind of splicing sleeve

Technical field

The invention belongs to wire connecting device, particularly be applicable to the splicing sleeve that wire jumper that overhead power line do not bear tension force and non-rectilinear shaft tower is connected.

Background technology

At present, the jumper wire continuing that does not bear tension force and non-rectilinear shaft tower for overhead power line is mainly two kinds of parallel groove clamp and hydraulic pressure splicing sleeves.The former mostly is screw bolt-type, and the latter mostly is crimp type.It is little that screw bolt-type all more or less exist to connect contact-making surface, and contact resistance is large, connect the problems such as unreliable, and the crimp type wire clamp exists and can only disposablely use, and the hydraulic operation task difficulty is large, the problems such as longevity of service.

Summary of the invention

Technical problem to be solved by this invention is, how to solve bolt clamp and connects unreliable, easy heating broken string, and hydraulic pressure splicing sleeve difficulty of construction is high and can not reusable problem.

The technical solution adopted in the present invention is: a kind of splicing sleeve, comprise the conical tube at Wei Dai expansion joint, two ends inner tube, be arranged on a side of described inner tube long outer tube, be arranged on the short outer tube of the opposite side of described inner tube, described long outer tube and described short outer tube are together by a threaded connection.

As a kind of optimal way: a threadless side of described long outer tube has the termination of nut type profile, and a threadless side of described short outer tube has the termination of nut type profile.

As a kind of optimal way: there is the frustum of a cone space coordinated with a side conical tube of described inner tube the inside of described long outer tube, and there is the frustum of a cone space coordinated with the opposite side conical tube of described inner tube the inside of described short outer tube.

The invention has the beneficial effects as follows: apparatus of the present invention are simple in structure, connection is reliable, be not easy the heating broken string, easy to install, can reuse, and economic benefit is good.

The accompanying drawing explanation

Fig. 1 is the front view schematic diagram in use procedure of the present invention;

Fig. 2 is that Fig. 1 is the left view schematic diagram;

Fig. 3 is the right view schematic diagram of Fig. 1;

Fig. 4 is the front view schematic diagram of inner tube of the present invention;

Fig. 5 is that Fig. 4 is the left view schematic diagram;

Fig. 6 is the right view schematic diagram of Fig. 4;

Fig. 7 is the front view schematic diagram of the long outer tube of the present invention;

Fig. 8 is that Fig. 7 is the left view schematic diagram;

Fig. 9 is the right view schematic diagram of Fig. 7;

Figure 10 is the front view schematic diagram of short outer tube of the present invention;

Figure 11 is the right view schematic diagram of Figure 10.

Wherein, 1, inner tube, 2, long outer tube, 3, conical tube, 4, the frustum space of long outer tube circle, 5, long external pipe thread, 6, short external pipe thread, 7, the frustum space of short outer tube, 8, short outer tube, 9, wire jumper, 10, expansion joint.

Embodiment

As shown in Figure 10 and Figure 11, an end of the short-and-medium outer tube 8 of the present embodiment has external screw thread (the short external pipe thread 6) other end that the termination of nut type profile is arranged, and there is the frustum of a cone space (the frustum space 7 of short outer tube) coordinated with the opposite side conical tube of inner tube inside; As shown in Fig. 7, Fig. 8, Fig. 9, an end of long outer tube 2 has the internal thread (long external pipe thread 5) coordinated with the external screw thread of short outer tube 8, the other end has the termination of nut type profile, and there is the frustum of a cone space (the frustum space of long outer tube circle) coordinated with the opposite side conical tube of inner tube inside; As shown in Fig. 4, Fig. 5, Fig. 6, the conical tube at the Wei Dai expansion joint, two ends of inner tube 1; As shown in Figure 1, Figure 2, Figure 3 shows, in use, wire jumper is filled in inner tube 1 from the two ends of inner tube 1, long outer tube 2 and short outer tube 8 from the two ends injection of inner tube 1 and be together by a threaded connection, compress the expansion joint of inner tube 1 by the frustum of a cone space of long outer tube 2 and short outer tube 8 inside, make wire jumper compacted, by using spanner (it is tighter than what manually twist to use spanner) to turn the nut type profile termination of short outer tube 8 and long outer tube 2, making is threaded reaches best degree of tightness state.

The application of the invention connects and to have solved bolt clamp and connect unreliable, easy heating broken string, and hydraulic pressure splicing sleeve difficulty of construction is high and can not reusable problem.

Claims

1. a splicing sleeve, it is characterized in that: comprise the conical tube at Wei Dai expansion joint, two ends inner tube, be arranged on a side of described inner tube long outer tube, be arranged on the short outer tube of the opposite side of described inner tube, described long outer tube and described short outer tube are together by a threaded connection.

2. a kind of splicing sleeve according to claim 1, it is characterized in that: a threadless side of described long outer tube has the termination of nut type profile, and a threadless side of described short outer tube has the termination of nut type profile.

3. according to claim 1 or a kind of splicing sleeve claimed in claim 2, it is characterized in that: there is the frustum of a cone space coordinated with a side conical tube of described inner tube the inside of described long outer tube, and there is the frustum of a cone space coordinated with the opposite side conical tube of described inner tube the inside of described short outer tube.