CN211480739U

CN211480739U - Special shunt wire clamp for live overhaul of strain clamp of power transmission line

Info

Publication number: CN211480739U
Application number: CN201922224616.8U
Authority: CN
Inventors: 胡海斌; 谢乔养; 阳耀鹏; 张清明; 李甘友; 黄康裕; 张郭林; 陈诚; 李建宁; 周健
Original assignee: Guilin Power Supply Bureau of Guangxi Power Grid Co Ltd
Current assignee: Guilin Power Supply Bureau of Guangxi Power Grid Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-09-11
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a special branch assembly line fastener of strain clamp is overhauld in transmission line electrification, including the rolling drum, the shape of rolling drum is cylindrical, be cavity in the rolling drum, be equipped with the fixed column in the rolling drum, the fixed column is concentric with the rolling drum, be equipped with first rolling spring in the rolling drum, first rolling spring is the state of rolling up, first rolling spring is connected with the side of fixed column, the other end of first rolling spring is connected with first wire, the left side shaping of rolling drum has first opening, the initiating terminal and the first rolling spring coupling of first wire, the end of first wire passes first opening and extends outside, the end-to-end connection of first wire has first fastener, first fastener makes the first half of fastener and the latter half mobile opening through the loose-leaf, the upper and lower part of first fastener passes through screw rod fixed connection.

Description

Special shunt wire clamp for live overhaul of strain clamp of power transmission line

Technical Field

The utility model belongs to the technical field of power system equipment maintenance technique and specifically relates to a special branch line fastener of strain clamp is overhauld in transmission line electrification.

Background

In order to avoid influencing the electricity consumption of residents and enterprises, working personnel often adopt uninterrupted maintenance operation, namely electrified maintenance. The strain clamp heating treatment operation needs to be carried out to avoid generating larger electric arc in the process of removing the drainage wire, and a shunt wire is required to be arranged, so that the personal safety and the equipment safety are ensured. The conventional shunt wire clamp that uses at present: 1. the clamp body is driven by the insulating rod to tighten up through a fixed end and the movable spiral pressing tongue so as to realize connection with a wire, under the condition that the wire clamp is not perpendicular to the wire, the fixed clamp body part and the movable pressing tongue part cannot be in complete contact with the wire, the swinging and shaking in work can cause looseness, the fastening performance is not firm, the conduction and shunt effect is not influenced, a large electric arc can be generated when the tension-resistant wire clamp is opened in the electrolysis process, and potential safety hazards are brought to live working. 2. How the fastener breaks away from suddenly in the operation process, will produce and draw the arc certainly, the drop of fastener leads to the fastener swing because of the reposition of redundant personnel line is longer simultaneously, may draw the arc many times or with the tower body or adjacent phase distance not enough in the swing in-process and lead to single-phase ground connection or interphase short circuit fault.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A special shunt wire clamp for an electrified overhaul strain clamp of a power transmission line comprises a winding disc, wherein the winding disc is cylindrical, the winding disc is hollow, a fixed column is arranged in the winding disc, the fixed column is concentric with the winding disc, a first winding spring is arranged in the winding disc, the first winding spring is in a winding state, the first winding spring is connected with the side surface of the fixed column, the other end of the first winding spring is connected with a first wire, a first opening is formed in the left side of the winding disc, the starting end of the first wire is connected with the first winding spring, the tail end of the first wire extends out through the first opening, the tail end of the first wire is connected with a first wire clamp, the upper half part and the lower half part of the wire clamp can be opened movably through hinges, the upper part and the lower part of the first wire clamp are fixedly connected through screws, a second winding spring is arranged in the winding disc, and the second winding spring is, the second rolling spring is connected with the side of fixed column, the other end of second rolling spring is connected with the second wire, the right side shaping of rolling drum has the second opening, the initiating terminal and the second rolling spring connection of second wire, the end of second wire passes the second opening and extends outside, the end-to-end connection of second wire has the second fastener, the second fastener makes the first half of fastener movably open with the latter half through the loose-leaf, the upper and lower part of second fastener passes through screw rod fixed connection.

As a further aspect of the present invention: the outer wall shaping of fixed column has first lug, and the one end welding of first rolling spring is on first lug.

As a further aspect of the present invention: the outer wall shaping of fixed column has the second lug, and the one end welding of second rolling spring is on the second lug.

As a further aspect of the present invention: the tail end of the first wire is connected with a first connecting block, a first stud is formed on the bottom surface of the first wire clamp, a first through hole is formed in the first connecting block, the first stud penetrates through the first through hole, a first nut is sleeved outside the first stud, and when the first nut is screwed upwards, the top surface of the first nut compresses the bottom surface of the first connecting block.

As a further aspect of the present invention: the tail end of the second wire is connected with a second connecting block, a second stud is formed on the top surface of the second wire clamp, a second through hole is formed in the second connecting block, the second stud penetrates through the second through hole, a second nut is sleeved outside the second stud, and when the second nut is screwed downwards, the bottom surface of the second nut compresses the top surface of the second connecting block.

As a further aspect of the present invention: the first wire clamp and the second wire clamp are made of aluminum materials.

As a further aspect of the present invention: the first conducting wire and the second conducting wire are made of copper materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a fastener of loose-leaf design can be general and various model wires, and it is not firm to have avoided linking simultaneously, contact failure problem.

2. The utility model discloses an automatic winding drum design, under the condition that the reposition of redundant personnel line drops suddenly, can automatic two-way shrink receive the reposition of redundant personnel line weak point, avoid causing the accident because of reposition of redundant personnel line length overlength.

3. The utility model discloses the simple operation connects firmly, can effectively reduce the potential safety hazard, improves man-machine efficiency, promotes the operation security.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the fixing column structure of the present invention.

In the figure: 1. the winding device comprises a winding wire coil, 2, a fixing column, 3, a first winding spring, 4, a first wire, 5, a first opening, 6, a first wire clamp, 7, a second winding spring, 8, a second wire, 9, a second opening, 10, a second wire clamp, 11, a first bump, 12, a second bump, 13, a first connecting block, 14, a first stud, 15, a first through hole, 16, a first nut, 17, a second connecting block, 18, a second stud, 19, a second through hole, 20 and a second nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but 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. 1-2, in the embodiment of the present invention, a special shunt wire clamp for live overhaul of a strain clamp of a power transmission line comprises a winding drum 1, wherein the winding drum 1 is cylindrical, the winding drum is hollow, a fixing column 2 is arranged in the winding drum 1, the fixing column 2 is concentric with the winding drum 1, a first winding spring 3 is arranged in the winding drum 1, the first winding spring 3 is in a winding state, the first winding spring 3 is connected with the side surface of the fixing column 2, the other end of the first winding spring 3 is connected with a first lead 4, a first opening 5 is formed on the left side of the winding drum 1, the starting end of the first lead 4 is connected with the first winding spring 3, the end of the first lead 4 extends outside through the first opening 5, the end of the first lead 4 is connected with a first wire clamp 6, the first wire clamp 6 enables the upper half part and the lower half part of a loose-leaf wire clamp to be opened, screw rod fixed connection is passed through to the upper and lower part of first fastener 6, be equipped with second rolling spring 7 in the rolling drum 1, second rolling spring 7 is the state of curling up, second rolling spring 7 is connected with fixed column 2's side, the other end of second rolling spring 7 is connected with second wire 8, the right side shaping of rolling drum 1 has second opening 9, the initiating terminal and the second rolling spring 7 of second wire 8 are connected, second opening 9 is passed through to the end of second wire 8 extends outside, the end-to-end connection of second wire 8 has second fastener 10, second fastener 10 makes the first half of fastener movably open with the latter half through the loose-leaf, the upper and lower part of second fastener 10 passes through screw rod fixed connection.

The outer wall shaping of fixed column 2 has first lug 11, and the one end welding of first coiling spring 3 is on first lug 11.

A second bump 12 is formed on the outer wall of the fixing column 2, and one end of the second rolling spring 7 is welded on the second bump 12.

The tail end of the first lead 4 is connected with a first connecting block 13, a first stud 14 is formed on the bottom surface of the first wire clamp 6, a first through hole 15 is formed in the first connecting block 13, the first stud 14 penetrates through the first through hole 15, a first nut 16 is sleeved outside the first stud 14, and when the first nut 16 is screwed upwards, the top surface of the first nut 16 compresses the bottom surface of the first connecting block 13.

The tail end of the second lead 8 is connected with a second connecting block 17, a second stud 18 is formed on the top surface of the second wire clamp 10, a second through hole 19 is formed in the second connecting block 17, the second stud 18 penetrates through the second through hole 19, a second nut 20 is sleeved outside the second stud 18, and when the second nut 20 is screwed downwards, the bottom surface of the second nut 20 compresses the top surface of the second connecting block 17.

The first wire clamp 6 and the second wire clamp 10 are made of aluminum material.

The first conductive line 4 and the second conductive line 8 are made of copper material.

The utility model discloses a theory of operation is: a first wire clamp 6 is clamped on a wire at one end of a strain clamp of a power transmission line needing to be overhauled in an electrified way, a second wire clamp 10 is clamped on a jumper wire at the other end of the strain clamp, the first wire 4 and the second wire 8 cross over the strain clamp to form parallel shunting of the wires, so that the current passing through the strain clamp is reduced, and the electric arc when the strain clamp is untied in an electrified way is reduced.

First wire 4 coils in coiling drum 1 with second wire 8, and both sides extend simultaneously when unreeling, and both sides shrink simultaneously during the rolling, two-way flexible promptly. When the device is used, the first lead 4 and the second lead 8 can be contracted to the shortest length by automatically tightening the elastic forces of the first rolling spring 3 and the second rolling spring 7, so that the first lead 4 and the second lead 8 are prevented from being overlong. When the first wire clamp 6 and the second wire clamp 10 are accidentally dropped off, the winding disc 1 can be automatically wound.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A special shunt wire clamp for an electrified overhaul strain clamp of a power transmission line comprises a winding disc, wherein the winding disc is cylindrical, the winding disc is hollow, a fixed column is arranged in the winding disc, the fixed column is concentric with the winding disc, a first winding spring is arranged in the winding disc, the first winding spring is in a winding state, the first winding spring is connected with the side surface of the fixed column, the other end of the first winding spring is connected with a first lead, a first opening is formed in the left side of the winding disc, the starting end of the first lead is connected with the first winding spring, the tail end of the first lead passes through the first opening to extend outside, the tail end of the first lead is connected with a first wire clamp, the upper half part and the lower half part of the wire clamp can be opened movably through hinges, the upper part and the lower part of the first wire clamp are fixedly connected through screws, and a second winding spring is arranged in the winding disc, the second rolling spring is the state of rolling up, the second rolling spring is connected with the side of fixed column, the other end of second rolling spring is connected with the second wire, the right side shaping of rolling drum has the second opening, the initiating terminal and the second rolling spring of second wire are connected, the end of second wire passes the second opening and extends outside, the end-to-end connection of second wire has the second fastener, the second fastener makes the first half of fastener movably open with the latter half through the loose-leaf, the upper and lower part of second fastener passes through screw rod fixed connection.

2. The special shunt wire clamp for the strain clamp for the live overhaul of the power transmission line according to claim 1, wherein a first bump is formed on the outer wall of the fixed column, and one end of the first winding spring is welded on the first bump.

3. The special shunt line clamp for the strain clamp for the live overhaul of the power transmission line according to claim 1, wherein a second bump is formed on the outer wall of the fixed column, and one end of the second winding spring is welded on the second bump.

4. The special shunt wire clamp for the strain clamp for the electrified overhaul of the power transmission line according to claim 1, wherein the tail end of the first wire is connected with a first connecting block, a first stud is formed on the bottom surface of the first wire clamp, a first through hole is formed in the first connecting block, the first stud penetrates through the first through hole, a first nut is sleeved outside the first stud, and when the first nut is screwed upwards, the top surface of the first nut compresses the bottom surface of the first connecting block.

5. The special shunt wire clamp for the strain clamp for the live overhaul of the power transmission line according to claim 1, wherein the tail end of the second wire is connected with a second connecting block, a second stud is formed on the top surface of the second wire clamp, a second through hole is formed in the second connecting block, the second stud penetrates through the second through hole, a second nut is sleeved outside the second stud, and when the second nut is screwed downwards, the bottom surface of the second nut presses the top surface of the second connecting block.

6. The special shunt line clamp for the strain clamp for the live overhaul of the power transmission line according to claim 1, wherein the first clamp and the second clamp are made of aluminum.

7. The special shunt wire clamp for the strain clamp for the live overhaul of the power transmission line according to claim 1, wherein the first conducting wire and the second conducting wire are made of copper materials.