CN210167516U

CN210167516U - Wire pressing and wiring structure for high-voltage power line

Info

Publication number: CN210167516U
Application number: CN201921512707.5U
Authority: CN
Inventors: 吴颖
Original assignee: State Grid Shanghai Electric Power Co Ltd
Current assignee: State Grid Shanghai Electric Power Co Ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-03-20
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses a wire pressing and connecting structure for high-voltage power lines, which comprises a first connecting piece, a second connecting piece and an insulating sleeve, wherein one end face of the first connecting piece is provided with a slot, the inside of the other end is provided with a cavity, the cavity is communicated with the outside through a through groove arranged on the side wall of the cavity, one end face of the second connecting piece is also provided with a slot, the end face of the other end is fixedly connected with a T-shaped block, countersunk grooves are arranged on the first connecting piece and the second connecting piece, the inner diameter of the insulating sleeve is matched with the outer diameters of the first connecting piece and the second connecting piece, the outer side wall of the insulating sleeve is provided with a wire connecting groove, the device can quickly connect the steel cables together through the arrangement of the two connecting pieces, the steel cable at the inner layer can be well ensured to be isolated from the outer wire through the arrangement of the insulating sleeve, thereby avoiding winding a large amount of insulating materials, thus simplifying the wire connecting step of, thereby providing the working efficiency of wiring and line pressing.

Description

Wire pressing and wiring structure for high-voltage power line

Technical Field

The utility model relates to an electric power tool technical field specifically is a line ball wiring structure for high voltage power line.

Background

For better transmission power, all adopt high voltage transmission at present, high voltage transmission is exactly through the transformer with voltage rising then transmit, adopt this kind of mode transmission of electricity because under the condition with transmission power, high voltage transmission power reduces the low heat loss that produces because of the electric current and reduces remote transmission's material cost, adopt high voltage transmission generally all to be remote transmission power, just so need will link together with the cable more, need use a large amount of insulating materials to isolate the steel cable of inlayer and outer wire in junction, just so led to the very loaded down with trivial details of step of high tension cable wiring, for solving above-mentioned problem, the utility model provides a line ball wiring structure for high voltage power line.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a line ball wiring structure for high tension power line to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a line ball wiring structure for high voltage power line, includes first connecting piece, second connecting piece and insulating cover, it has the slot to open on the terminal surface of first connecting piece, and the inside of the other end is opened there is the cavity, and the cavity communicates with each other with the external world through the groove that runs through that it was opened on its lateral wall, also open on the terminal surface of second connecting piece has the slot, fixedly connected with T-shaped piece on the terminal surface of the other end, and all opened on first connecting piece and the second connecting piece has countersunk groove, the internal diameter of insulating cover and the external diameter looks adaptation of first connecting piece and second connecting piece, it has the wiring groove to open on the lateral wall of insulating cover.

Preferably, two through holes are formed in the side wall of the cavity, and corresponding threaded holes are formed in two end faces of the T-shaped block.

Preferably, the side wall of the cavity is fixedly connected with two positioning blocks, and the two positioning blocks are arranged circumferentially.

Preferably, the wiring groove is movably clamped with a cover plate through clamping grooves formed in the groove walls of the two sides of the wiring groove, and the cover plate is fixedly connected with corresponding clamping strips.

Preferably, the middle part of the bottom of the wiring groove is fixedly connected with a wiring terminal.

Preferably, the post is provided with a ring groove.

Preferably, both ends of the insulating sleeve are fixedly connected with auxiliary heat-shrinkable tubes.

Preferably, the groove wall of the slot is provided with anti-skid lines.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a cooperation between first connecting piece and the second connecting piece, the one end fixed connection of two cables of being connected two connecting pieces and needs has been realized, then just can be quick with two connecting piece joints together, thereby realize the high-speed joint, then overlap the outside of insulating cover at two connecting pieces, then wiring through the wiring groove on the insulating cover, thereby can ensure that the steel cable of inlayer is isolated with outer wire, thereby can avoid twining a large amount of insulating material, just so can make high tension cable's the step of working a telephone switchboard become more simplified, thereby can make things convenient for going on of line ball wiring process.

Drawings

FIG. 1 is a schematic diagram of the present invention after the wiring is completed;

figure 2 is an exploded view of figure 1 in accordance with the present invention;

fig. 3 is a cross-sectional view of the present invention in fig. 1;

figure 4 is an exploded view of figure 3 in accordance with the present invention;

fig. 5 is a schematic view of the internal structure of the cavity of the present invention;

fig. 6 is an exploded view of the first and second connecting members of the present invention;

FIG. 7 is an exploded view of the cover plate and the insulating sleeve of the present invention;

fig. 8 is a cross-sectional view of the cavity position of the present invention.

In the figure: 1. the connector comprises a first connecting piece, a second connecting piece, a first inserting groove, a second inserting groove, a countersunk groove, a second connecting piece, a third connecting piece, a fourth connecting piece, a fifth connecting piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a wire pressing and connecting structure for a high-voltage power line comprises a first connecting piece 1, a second connecting piece 2 and an insulating sleeve 11, wherein a slot 3 is formed in one end face of the first connecting piece 1, a steel cable in the cable can be inserted into the slot 3, the high-voltage cable is generally of a composite type, a common multi-strand steel cable is taken as an inner core and mainly bears mechanical tension, dozens of aluminum wires (or copper wires) are arranged outside the high-voltage cable and mainly bear current, the steel cable is separated from the aluminum wires through an isolating layer, the steel cable in the high-voltage cable is firstly butted with the steel cable in the high-voltage cable and then connected with the aluminum wires, the steel cable and the aluminum wires are also separated through insulating materials at the position of a connecting position, a cavity 7 is formed in the other end face of the first connecting piece 1, the cavity 7 is communicated with the outside through a through groove 6 formed in the side wall of the cavity, the slot 3 is also formed in one end face of the, the end face of the other end is fixedly connected with a T-shaped block 5, the size of the longer end of the T-shaped block 5 is equal to that of the through groove 6, the shorter end of the T-shaped block 5 (namely the part connected with the second connecting piece 2) can rotate in the through groove 6, the T-shaped block 5 is inserted into the cavity 7 through the through groove 6, then the T-shaped block 5 is rotated for 90 degrees, so that the first connecting piece 1 and the second connecting piece 2 can be clamped quickly, countersunk grooves 4 are formed in the first connecting piece 1 and the second connecting piece 2, one ends of steel cables in two cables to be connected with each other are respectively inserted into the slots 3 on the two connecting pieces, then locking bolts can be screwed into the slots 3 through the countersunk grooves 4, and can be matched with the side groove walls of the slots 3 to extrude the steel cables, so that the steel cables can be fixed in the slots 3, (as shown in fig. 6, two countersunk grooves 4 are formed in each connecting member, and a certain angle is formed between the two countersunk grooves 4, so as to more stably fix the steel cable), the inner diameter of the insulating sleeve 11 is adapted to the outer diameters of the first connecting member 1 and the second connecting member 2, a wiring groove 13 is formed on the outer side wall of the insulating sleeve 11, before the cable is connected, the insulating sleeve 11 is sleeved outside the cable, the two connecting pieces are clamped together through the T-shaped blocks 5 and the cavities 7, the insulating sheath 11 can then be fitted over the exterior of the two connectors, after which the aluminum wire can be placed inside the wire connecting groove 13 for connection, after which the exterior of the insulating sheath 11 is wrapped with the primary heat shrinkable tube 19, the insulation cover 11 is protected to complete the connection, and it is noted that the primary heat shrinkable tubing 19 is wrapped around one of the cables before the connection, and is thus handled when subsequently heat shrunk.

Specifically, two through holes 9 are formed in the side wall of the cavity 7, corresponding threaded holes 10 are formed in two end faces of the T-shaped block 5, the T-shaped block 5 is rotated by a specified angle to enable the through holes 9 and the threaded holes 10 to be aligned with each other, and the screw rod is meshed with the threaded holes 10 through the through holes 9, so that the two connecting pieces can be connected more stably.

Specifically, two positioning blocks 8 are fixedly connected to the side wall of the cavity 7, the two positioning blocks 8 are arranged in a circumferential mode (as shown in fig. 5 and 8), the T-shaped rod 5 is inserted into the cavity 7, then the T-shaped block 5 is rotated clockwise, when the T-shaped block 5 and the positioning blocks 8 are in contact with each other, the through holes 9 are aligned with the threaded holes 10, and the positioning blocks 8 are convenient to set and position determination is achieved.

Particularly, wiring groove 13 has apron 15 through the 14 movable joint of draw-in groove that open on its both sides cell wall, fixedly connected with card strip 16 that corresponds on the apron 15, the setting of apron 15 can cover wiring groove 13 to protect its inside interconnect's aluminium line, make aluminium line connection more firm.

Specifically, the wiring terminal 17 (made of conductive material, such as copper) is fixedly connected to the middle of the bottom of the wiring slot 13, so that aluminum wires in two cables can be wound on the wiring terminal 17 respectively, and the connection can be more stable.

Specifically, the post 17 is provided with a ring groove 18, and an aluminum wire is wound inside the ring groove 18, so that the aluminum wire can be prevented from being separated from the post 17.

Specifically, the two ends of the insulating sleeve 11 are fixedly connected with the auxiliary heat shrinkable tubes 12, and the auxiliary heat shrinkable tubes 12 (as shown in fig. 3) can wrap the steel cable and the insulation layer outside the steel cable, so that the steel cable can be better isolated from the aluminum wire.

Particularly, the groove wall of the slot 3 is provided with anti-slip lines, so that the connection between the steel cable and the connecting piece is more stable.

The working principle is as follows: before use, one end of two high-voltage cables to be connected is stripped (as shown in figure 2), then the two steel cables are respectively inserted into the slots 3 of the two connecting pieces, then the locking bolt is screwed into the slots 3 through the countersunk groove 4, at the moment, the locking bolt can extrude the steel cables to be fixedly connected into the slots 3, then the insulating sleeve 11 and the main heat-shrinkable tube 19 are sleeved outside one cable, then the two connecting pieces are connected together through the T-shaped block 5 and the cavity 7, then the two connecting pieces are stably connected together through the screw screwed into the through hole 9, at the moment, the insulating sleeve 11 can be sleeved outside the two connecting pieces, the auxiliary heat-shrinkable tube 12 is heated to wrap the steel cables and the isolating layer (as shown in figure 3), then the aluminum wires in the two cables are respectively wound on the binding post 17, and then the cover plate 15 is covered on the wiring groove 13, finally, the main heat shrinkable tube 19 is fitted around the outside of the insulating jacket 11 (as shown in fig. 1), and the main heat shrinkable tube 19 is heated again to tightly surround the insulating jacket 11, thereby completing the wiring.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a line ball wiring structure for high voltage power line, includes first connecting piece (1), second connecting piece (2) and insulating cover (11), its characterized in that: open on the terminal surface of first connecting piece (1) has slot (3), and the inside of the other end is opened there is cavity (7), and cavity (7) open on through its lateral wall have run through groove (6) and communicate with each other with the external world, also open slot (3) on the terminal surface of second connecting piece (2), fixedly connected with T-shaped piece (5) on the terminal surface of the other end, and all opened countersunk head groove (4) on first connecting piece (1) and second connecting piece (2), the internal diameter of insulating cover (11) and the external diameter looks adaptation of first connecting piece (1) and second connecting piece (2), it has wiring groove (13) to open on the lateral wall of insulating cover (11).

2. The line ball wiring structure for a high voltage power line according to claim 1, characterized in that: two through holes (9) are formed in the side wall of the cavity (7), and corresponding threaded holes (10) are formed in two end faces of the T-shaped block (5).

3. The line ball wiring structure for a high voltage power line according to claim 2, characterized in that: the side wall of the cavity (7) is fixedly connected with two positioning blocks (8), and the two positioning blocks (8) are arranged circumferentially.

4. The line ball wiring structure for a high voltage power line according to claim 1, characterized in that: the wiring groove (13) is movably clamped with a cover plate (15) through clamping grooves (14) formed in the groove walls of the two sides of the wiring groove, and corresponding clamping strips (16) are fixedly connected to the cover plate (15).

5. The line ball wiring structure for a high voltage power line according to claim 1, characterized in that: and the middle part of the bottom of the wiring groove (13) is fixedly connected with a wiring terminal (17).

6. The line ball wiring structure for a high voltage power line according to claim 5, wherein: and the binding post (17) is provided with a ring groove (18).

7. The line ball wiring structure for a high voltage power line according to claim 1, characterized in that: and two ends of the insulating sleeve (11) are fixedly connected with auxiliary heat-shrinkable tubes (12).

8. The line ball wiring structure for a high voltage power line according to claim 1, characterized in that: the wall of the slot (3) is provided with anti-skid lines.