CN211700859U

CN211700859U - Live working specialty shorting stub

Info

Publication number: CN211700859U
Application number: CN201922368545.9U
Authority: CN
Inventors: 李明华; 顾光荣; 丁志敏; 唐煊阳; 周仕炜; 袁一方; 杨诚; 杨琪
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-16
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a live working professional shorting stub, which relates to the technical field of transmission line maintenance equipment, and comprises a clamping part for connecting an insulator, a butt joint part for connecting a cross arm and a wire for connecting the clamping part and the butt joint part; the clamping part is connected with an insulated connecting rod. The utility model discloses a live working specialty shorting stub, the staff of being convenient for operates in the place from insulator safe distance, need not to contact the insulator.

Description

Live working specialty shorting stub

Technical Field

The utility model relates to a transmission line maintenance of equipment technical field especially relates to a live working specialty shorting stub.

Background

Before the insulator is not separated from the wire, when the first insulator close to the cross arm is disassembled and assembled, a special short circuit wire or a shielding clothes can be adopted for direct operation. However, no special live working short-circuit wire exists at present, and an electrician (an electrician on a tower) needs to wear a whole set of shielding clothes; the staff needs to detect and wear the shielding clothes, which takes much time, and the self weight of the shielding clothes is 2-3 jin, so that the staff consumes much physical power when climbing the pole; moreover, live-line work is often carried out in good weather such as summer, and people feel uncomfortable when wearing the shielding clothes, and are prone to heatstroke and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide a live working specialty shorting stub for connecting insulator and cross arm, the staff can live working before the insulator does not break away from the wire.

The utility model provides an above-mentioned technical problem's technical scheme as follows: comprises a clamping part, a butt joint part and a lead for connecting the clamping part and the butt joint part; the clamping part is connected with an insulated connecting rod.

In the technical scheme, the clamping part is used for clamping the insulator, the butt joint part is used for connecting the cross arm, and the connecting rod is used for being held by a worker to avoid the worker from contacting the discharging insulator to cause electric shock of the worker, and meanwhile, the safety distance between the worker and the high-voltage electricity and the induced electricity can be ensured, and the personal safety of the worker can be ensured; the clamping part and the butt joint part are made of conductive materials; and the insulator is connected through a wire to realize insulator discharge.

Drawings

The drawings in the following description are only some embodiments of the application, and other drawings may be derived from those drawings by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural view of a professional shorting stub in some embodiments of the present invention;

fig. 2 and 3 are schematic views of the structure of the clamping portion and the connecting rod in some embodiments of the present invention;

fig. 4 is a schematic structural view of a jaw and buckle assembly in some embodiments of the present invention;

fig. 5 is a schematic view of the separated jaw and buckle assembly of some embodiments of the present invention;

fig. 6 is a schematic structural view of a buckle assembly according to some embodiments of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-clamping part, 11-buckle component, 111-button, 112-clamping block, 1121-connecting rod, 1122-clamping head, 11221-inclined surface, 11222-plane, 113-first spring, 114-second spring, 12-rotating shaft, 13-torsion spring, 14-clamping jaw, 141-clamping groove, 2-butt joint part, 21-clamping plate, 22-lead winder, 3-lead, 4-connecting rod and 41-thread head.

Detailed Description

The principles and features of the present invention are described below in conjunction with the drawings, and the examples provided are only for explaining the principles and features of the present invention, and are only for explaining the present invention, but not for limiting the scope of the present invention.

The live replacement of the insulator is a conventional maintenance method in live maintenance of the power transmission line. However, the insulator is electrified before being separated from the lead, and workers need to adopt a special short circuit wire or a shielding clothes for electrified work, but no special electrified work short circuit wire exists at present.

In view of the above, the present document provides a hot-line work professional shorting stub, as shown in fig. 1, including a clamping portion 1 for connecting an insulator, a butting portion 2 for connecting a cross arm, and a wire 3 connecting the clamping portion 1 and the butting portion 2; the clamping part 1 is connected with an insulated connecting rod 4, so that a worker can conveniently operate at a place which is away from the insulator at a safe distance without contacting the insulator.

In some embodiments, as shown in fig. 2-5, the clamping portion 1 comprises a snap assembly 11, a rotating shaft 12, a torsion spring 13, and at least two clamping jaws 14, the two clamping jaws 14 being a clamping jaw a and a clamping jaw B, respectively; the two clamping jaws 14 are rotatably connected through a rotating shaft 12; the torsion spring 13 is nested on the rotating shaft 12, and two legs of the torsion spring 13 are connected with the two clamping jaws 14; a clamping groove 141 is formed in one side, close to the clamping jaw B, of the clamping jaw A; the buckle assembly 11 is located between the two clamping jaws 14, and the buckle assembly 11 comprises a button 111, a clamping block 112, a first spring 113 and a second spring 114; the latch 112 includes a connecting rod 1121 and a latch head 1122 connected to the connecting rod 1121; the snap head 1122 is matched with the clamping groove 141; the connection rod 1121 is connected to the button 111; the first spring 113 is nested on the connecting rod 1121 and is located between the snap head 1122 and the side wall of the button 111; the second spring 114 is disposed between the button 111 and the rotating shaft 12 and has both ends connected to the button 111 and the rotating shaft 12, respectively; the connecting rod 4 is connected with the rotating shaft 12 in a T shape; two jaws 14 are located on either side of the connecting rod 4.

The rotating shaft 12 is fixedly connected with the clamping jaw B; the clamping jaw a is rotatably connected with the rotating shaft 12, so that the clamping groove 141 can rotate relative to the rotating shaft 12, and the clamping and the releasing of the two clamping jaws 14 are realized.

In some embodiments, the snap 1122 is a 1/8 sphere structure consisting of an 1/8 sphere and three planes 11222; the clamping groove 141 is arranged to be an 1/8 ball structure matched with the buckle head 1122; 1/8 the spherical surface is located on the side near the rotation axis 12.

It should be noted that the three planes are a plane a, a plane B and a plane C, respectively, the plane a is a bottom surface, the plane B and the plane C are perpendicular to each other, and the plane B is far away from the rotating shaft 12; the plane C is located on one side of the rotation direction of the clamping jaw 14A when the clamping head 1122 is separated from the clamping groove 141, so that the clamping jaw 14 is in an initial state, even under the action of the torsion spring 13, the clamping head 1122 cannot be separated from the clamping groove 141, and the limiting is realized.

In some embodiments, jaws a and B are arcuate structural members disposed opposite one another.

In some embodiments, the docking portion 2 includes a clamping plate 21, and the clamping plate 21 is an R-shaped clamping plate formed by bending an elastic sheet; the lead 3 is connected to the clamp plate 21.

When the clamping jaws 14 are in the initial state, the clamping heads 1122 are embedded into the clamping grooves 141, so that the two clamping jaws 14 are kept in the open state; the two jaws 14 have a tendency to grip under the action of the torsion spring 13. When the insulator replacing clamp is used, a worker clamps the cross arm by the clamping plate 21, then the worker holds the connecting rod 4 by hand to extend the clamping part 1 to an insulator to be replaced, the clamping jaw 14 is arranged above the insulator, the clamping jaw 14 is pressed downwards, the insulator presses the button 111, and the second spring 114 is compressed; because the side of the fastening head 1122 close to the rotating shaft 12 is an arc-shaped surface, the button 111 can push the fastening head 1122 to move towards one side of the rotating shaft 12 after being stressed, and the first spring 113 is compressed to be separated from the fastening groove 141. Due to the restoring force of the torsion spring 13, the clamping jaw A is pushed to rotate towards the clamping jaw B, the insulator is clamped, the insulator is grounded through the clamping jaw 14, the wire 3, the clamping plate 21 and the cross arm, and a worker can approach to work after the insulator is grounded and discharged. After the work is finished, the worker can pull the clamping jaw 14 open, so that the clamping jaw A rotates reversely, under the action of the restoring force of the second spring 114, the buckle head 1122 returns to the ring line where the clamping groove 141 is located, and when the clamping jaw A rotates the buckle head 1122 to the clamping groove 141, the clamping jaw A is embedded into the clamping groove 141 under the action of the restoring force of the first spring 113, so that the clamping jaw 14 is reset.

In some embodiments, as shown in fig. 6, the snap head 1122 is a shaped pyramidal structure consisting of two inclined surfaces 11221 and three flat surfaces 11222; the two inclined surfaces 11221 are adjacent conical surfaces of the special-shaped cone structure; the slot 141 is a shaped pyramid groove that mates with the snap 1122.

It should be noted that the two inclined surfaces 11221 are respectively an inclined surface a and an inclined surface b, the three flat surfaces 11222 are respectively a flat surface a, a flat surface b and a flat surface c, and the inclined surface a and the inclined surface b are respectively located on a side close to the rotating shaft 12 and a side away from the rotating direction of the clamping jaw 14A when the snap fitting 1122 is removed from the clamping groove 141; the plane a and the plane b are respectively located on one side far away from the rotating shaft 12 and on the same side of the rotating direction of the clamping jaw 14A when the buckle head 1122 is pulled out of the clamping groove 141; the inclined surface c is a bottom surface. The plane a and the plane b prevent the snap head 1122 from coming out of the slot 141 even under the action of the torsion spring 13 when the clamping jaw 14 is in the initial state, thereby realizing the limit.

In some embodiments, jaws 14 include a first jaw, a second jaw, and a third jaw; the first clamping jaw and the third clamping jaw are respectively positioned at two sides of the second clamping jaw; the torsion spring 13 is a double torsion spring.

In some embodiments, the first clamping jaw and the third clamping jaw are connected, and the first clamping jaw and the third clamping jaw are rotatably connected with the rotating shaft 12, and the rotating shaft 12 of the second clamping jaw 1 is fixedly connected; the clamping groove 141 is arranged on the side surface of the first clamping jaw or the third clamping jaw close to the second clamping jaw.

In some embodiments, the first jaw, the second jaw, and the third jaw are all arc-shaped structural members, and the first jaw and the third jaw are disposed opposite to the second jaw.

In some embodiments, the professional shorting stub disclosed in this document further includes an extension bar detachably connected to the connecting rod 4, so as to extend the connecting rod 4, thereby facilitating the selection of a proper working distance by a worker.

Optionally, the end of the connecting rod 4 remote from the rotating shaft 12 is provided with a threaded head 41, and the extension rod is in threaded connection with the connecting rod 4.

In some embodiments, the docking portion 2 further includes a wire winder 22, and the clamp plate 21 is provided on a housing of the wire winder 22; the lead 3 is connected with the lead winder 22, and the lead 3 is collected and paid out.

The wire winder 22 is a retractable winding roll, which can be a commercially available YSHFT automatic retractable winding roll or other winding rolls capable of achieving the automatic retractable function of the wires 3.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a live working specialty shorting stub which characterized in that: comprises a clamping part (1), a butt joint part (2) and a lead (3) for connecting the clamping part (1) and the butt joint part (2); the clamping part (1) is connected with an insulated connecting rod (4);

the clamping part (1) comprises a buckle assembly (11), a rotating shaft (12), a torsion spring (13) and at least two clamping jaws (14);

the two clamping jaws (14) are rotatably connected through the rotating shaft (12); the two legs of the torsion spring (13) connect the two jaws (14); a clamping groove (141) is formed in one side, close to the other clamping jaw (14), of one clamping jaw (14);

the buckle assembly (11) is positioned between the two clamping jaws (14), and the buckle assembly (11) comprises a button (111), a clamping block (112), a first spring (113) and a second spring (114);

the clamping block (112) comprises a connecting rod (1121) and a clamping head (1122), and the connecting rod (1121) is connected with the clamping head (1122); the buckling head (1122) is matched with the clamping groove (141); the connecting rod (1121) is connected with the button (111); the first spring (113) is nested on the connecting rod (1121) and is positioned between the buckle head (1122) and the side wall of the button (111); the second spring (114) is arranged between the button (111) and the rotating shaft (12) and two ends of the second spring are respectively connected with the button (111) and the rotating shaft (12);

the connecting rod (4) is connected with the rotating shaft (12) in a T shape; the two clamping jaws (14) are respectively positioned at two sides of the connecting rod (4).

2. Hot-line work specialized shorting stub according to claim 1, wherein the snap head (1122) is a 1/8 sphere structure consisting of 1/8 spheres and three planes; the clamping groove (141) is an 1/8 ball groove matched with the clamping head (1122).

3. Hot-line work specialized shorting stub according to claim 1, wherein the snap head (1122) is a shaped cone structure consisting of two inclined faces (11221) and three flat faces (11222); the two inclined surfaces (11221) are adjacent conical surfaces of the special-shaped cone structure; the clamping groove (141) is a special-shaped vertebral body groove matched with the clamping head (1122).

4. Live working professional shorting line according to any one of claims 1 to 3, wherein the jaws (14) comprise a first jaw (14), a second jaw (14) and a third jaw (14); the first clamping jaw (14) and the third clamping jaw (14) are respectively positioned at two sides of the second clamping jaw (14); the torsion spring (13) is a double torsion spring.

5. Live working professional shorting stub according to claim 4, wherein the first jaw (14) and the third jaw (14) are connected and the first jaw (14) and the third jaw (14) are rotatably connected to a rotation shaft (12); the clamping groove (141) is formed in the side face, close to the second clamping jaw (14), of the first clamping jaw (14) or the third clamping jaw (14).

6. Live working professional shorting stub according to claim 1, further comprising an extension bar detachably connected to the connecting rod (4).

7. Live working professional shorting stub according to claim 6, wherein the end of the connecting rod (4) remote from the rotation axis (12) is provided with a threaded head (41), and the extension rod is in threaded connection with the connecting rod (4).

8. The hot-line work specialized shorting stub according to claim 1, wherein the butt joint part (2) comprises a clamping plate (21), and the clamping plate (21) is an R-shaped clamping plate (21) formed by bending an elastic sheet; the lead (3) is connected with the clamping plate (21).

9. Hot-line work specialized shorting stub according to claim 8, wherein the docking part (2) further comprises a wire winder (22), the clamping plate (21) being arranged on a housing of the wire winder (22); the lead (3) is connected with the lead winder (22).