CN201656414U - Fast-assembled intermediate connecting joint of cable - Google Patents

Abstract

The utility model relates to a fast-assembled intermediate connecting joint of a cable, wherein two conduction cores of two cables are respectively connected with a metal connecting pipe by a metal connecting joint; an insulating pipe is arranged at the periphery of the metal connecting pipe; more than three uprights are respectively fixed on turning plate at the two ends of a supporting pipe seat in the insulating pipe; the two sides of each of the uprights are respectively connected with metal inserts; two inner taper sleeves are arranged at the two ends of the insulating pipe and is connected on insulators of the cables in a compression way; an insulating spacer is arranged between the metal connecting pipe and each of the inner taper sleeves; a stress tapered pipe is arranged on the inner taper sleeves and is pressed on the insulators of the cables; two tapered seats are respectively arranged between the insulating pipe and the stress tapered pipe; tapered holes of the tapered seats are connected on the outer taper of the stress taped pipe in a compression way; more than two springs are arranged between each of the tapered seats and a gland; the gland is arranged on the tapered seats; and outer jackets with opening ends are sheathed outside the springs and are arranged on the metal inserts of the insulating pipe by connecting bolts. The fast-assembled intermediate connecting joint of the cable has the characteristics that the operation of cable connection is convenient, and the first-aid repair efficiency is improved.

Description

Quick-release cable intermediate connector

technical field

The utility model relates to a fast-installed cable intermediate connection joint used for high-voltage power cables, which belongs to the technical field of high-voltage and ultra-high-voltage cable terminal accessories.

Background technique

At present, the cross-linked cable system usually requires high-voltage cross-linked cables, terminals and a large number of intermediate joint accessories to connect. With the transformation of the power grid, the cables in the distribution network power system are buried. In the actual use after installation, due to various reasons such as infrastructure construction, cable failure, joint quality accident, mechanical external force damage, etc., the cable or intermediate joint is damaged or destroyed, and it is urgent to repair.

The conventional intermediate joint is usually composed of an insulating tube, an inner shielding tube and an outer shielding tube compounded in the insulating tube, and stress cones at both ends of the insulating tube. After the damaged cable is sawed off, the two cable conductors with the cable insulator removed are removed. First use metal conductive joints for crimping, and then clamp a voltage equalizing cover that acts as a shield on the outside of the metal conductive joints, and finally install the voltage equalizing cover in the integrated intermediate joint. The wiring operation is cumbersome and complicated, and the construction efficiency is not high. .

Contents of the invention

The purpose of this utility model is to provide a quick-installed cable intermediate connection joint with convenient cable connection operation.

The technical scheme of the utility model to achieve the above purpose is: a quick-installed cable intermediate connection joint, including an insulating tube, a metal connecting tube, a stress conical tube and a cable, and is characterized in that: two sides of the metal connecting tube are crimped respectively. Two metal connectors, the conductive cores of the two cables are fixed on their respective metal connectors, the insulating tube is installed on the outer circumference of the metal connector and extends out of the two ends of the metal connector, the insulating tube has a supporting tube seat, and the flaps at both ends of the supporting tube seat More than three pillars are respectively fixed, and the two sides of the pillars are respectively connected with metal inserts, and the outer side of the metal inserts is provided with threaded holes; the two inner taper sleeves are respectively installed in the taper holes at both ends of the insulating tube and crimped the cable On the insulator, there is an insulating gasket between the two ends of the metal pipe and the inner tapered sleeve, and the outer cone is opposite to the stress of the inner tapered sleeve. Two cone seats are respectively installed between the insulating tube and the stress cone tube, and the taper hole of the cone seat is crimped on the outer cone of the stress cone tube, and more than two springs are installed between the cone seat and the gland, and connected The bolt passes through the gland and the spring and is installed on the cone seat; the outer protective tube with an open end is sleeved on the outside of the spring, and is installed on the metal insert of the insulating tube through the connecting bolt.

In the utility model, the conductive core of the cable is pressed in the metal connecting pipe, and the insulator of the cable is installed on the insulator of the cable through the inner cone sleeve and the stress cone tube opposite the outer cone, and then the stress cone tube and the inner cone are pushed on the stress cone tube and the inner cone through the cone seat. Put the stress conical tube on the insulator of the cable, especially press the cone seat through the spring, which is convenient to adjust the pressing force of the stress conical tube on the insulator of the cable. It is easy to operate and can make the cable The conductive core of the wire is reliably installed on the metal connector, which is easy to install. The utility model is provided with a supporting pipe seat on the insulating pipe, and the pillars are reliably fixed in the insulating pipe through two metal inserts, so the two outer protective pipes are respectively installed on the insulating pipe through the connecting bolts, shortening the repair time, The labor intensity of workers is greatly reduced, and the repair efficiency is improved.

Description of drawings

Embodiments of the present utility model are described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a structural representation of the utility model.

Among them: 1-elastic jacket, 2-outer protective tube, 3-gland, 4-spring, 5-connecting bolt, 6-taper seat, 7-stress conical tube, 8-inner taper sleeve, 9-cable , 10-insulation gasket, 11-metal connector, 12-metal connection pipe, 13-insulation pipe, 13-1-support pipe seat, 13-2-pillar, 13-3-metal insert.

Detailed ways

As shown in Figure 1, the quick-installed cable intermediate connection joint of the present utility model includes an insulating tube 13, a metal connecting pipe 12, a stress conical pipe 7 and a cable 9, and two sides of the metal connecting pipe 12 are installed and crimped respectively. Metal connector 11, as shown in Figure 1, the metal connector 12 is symmetrically provided with stepped holes on both sides, and the metal connector 11 is a corresponding stepped shaft, and the outer circumference of the small shaft of the metal connector 11 has more than two ring recesses Groove, the small shaft of the metal connector 11 is crimped in the mounting hole of the metal connector 12, the conductive core of the cable 9 is fixed on the metal connector 11, and the metal connector 12 is used as a part of the conductive core of the cable 9, and the insulating tube 13 Installed on the outer periphery of the metal connecting pipe 12 and extending out of the two ends of the metal connecting pipe 12, the insulating pipe 13 has a supporting pipe base 13-1, and more than three pillars 13-2 are respectively fixed on the flaps at the two ends of the supporting pipe base 13-1, and Both sides of each pillar 13-2 are respectively connected with a metal insert 13-3, and the outer side of the metal insert 13-3 is provided with threaded holes. As shown in Fig. 1, the two inner tapered sleeves 8 of the present utility model are respectively installed in the taper holes at both ends of the insulating tube 13 and crimped on the insulator of the cable 9, and the two end surfaces of the metal connecting pipe 12 and the inner tapered sleeve 8 are provided. There is an insulating gasket 10, and the outer cone is opposite to the stress conical pipe 7 of the inner tapered sleeve 8, which is installed on the inner tapered sleeve 8 and pressed on the insulator of the cable 9, as shown in Figure 1, on the inner tapered sleeve 8 There is an installation groove, and the stress conical tube 7 is partly arranged in the installation groove of the inner tapered sleeve 8, so that the stress conical tube 7 is pressed on the insulator of the cable 9, and the two cone seats 6 are respectively installed on the insulating tube 13 and the stress between the conical tubes 7, and the conical hole of the conical seat 6 is crimped on the outer cone of the stress conical tube 7, more than two springs 4 are installed between the conical seat 6 and the gland 3, and the connecting bolts 5 pass through The gland 3 and the spring 4 are installed on the cone seat 6, and the cone seat 6 squeezes the inner cone sleeve 8 and the stress cone tube 7 respectively, so that the inner cone sleeve 8 and the stress cone tube 7 are clamped on the insulator of the cable 9 The pressing force of the inner taper sleeve 8 and the stress conical tube 7 clamped on the cable 9 can be adjusted by the spring 4, so that the conductive core of the cable 9 can be reliably installed on the metal connector 11. As shown in Figure 1, the outer protective tube 2 of the utility model has an open end, the outer protective tube 2 is set on the outside of the spring 4, and is installed on the metal insert 13-3 of the insulating tube 13 through the connecting bolt 5, so that the outer protective tube 2. The spring 4 is protected. In order to achieve a better protection effect, an elastic jacket 1 is also installed on the insulator of the cable 9, and the clips at the opening end of the elastic jacket 1 are clamped on the outer protective tube 2.

Claims (3)

1. A fast-installed cable intermediate connection joint, comprising an insulating tube (13), a metal connecting pipe (12), a stress conical pipe (7) and a cable (9), is characterized in that: the two metal connecting pipes (12) Two metal connectors (11) are crimped on the two sides respectively, the conductive cores of the two cables (9) are respectively fixed on the respective metal connectors (11), the insulating tube (13) is installed on the outer circumference of the metal connector (12) and Extend the two ends of the metal connecting pipe (12), and the insulating pipe (13) has a supporting tube base (13-1), and the flaps at the two ends of the supporting tube base (13-1) are respectively fixed with more than three pillars (13-2 ), the two sides of the pillar (13-2) are respectively connected with the metal insert (13-3), and the outer side of the metal insert (13-3) is provided with threaded holes; the two inner tapered sleeves (8) are respectively installed on In the tapered holes at both ends of the insulating tube (13) and crimped on the insulator of the cable (9), an insulating gasket (10) is arranged between the two ends of the metal connecting pipe (12) and the inner tapered sleeve (8), and the outer cone The stress conical pipe (7) opposite to the inner tapered sleeve (8) is installed on the inner tapered sleeve (8) and pressed on the insulator of the cable (9), and the two cone seats (6) are respectively installed on the insulating tube (13) and the stress conical tube (7), and the taper hole of the cone seat (6) is crimped on the outer cone of the stress cone tube (7), and more than two springs (4) are installed on the cone seat (6) and the gland (3), the connecting bolt (5) passes through the gland (3) and the spring (4) and is installed on the cone seat (6); the outer protective tube (2) with an open end is set On the outside of the spring (4), it is installed on the metal insert (13-3) of the insulating tube (13) through the connecting bolt (5). 2. The quick-installed cable intermediate connection joint according to claim 1, characterized in that: an elastic collet (1) is also installed on the insulator of the cable (9), and the clip at the open end of the elastic collet (1) The feet are clamped on the outer protective tube (2). 3. The quick-installed cable intermediate connection joint according to claim 1, characterized in that: the two sides of the metal connecting pipe (12) are symmetrically provided with stepped holes, and the metal connecting head (11) is a corresponding stepped shaft, And the outer circumference of the small shaft of the metal connector (11) has more than two ring grooves, and the small shaft of the metal connector (11) is crimped in the installation hole of the metal connecting pipe (12).

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