CN217882585U

CN217882585U - Live connecting clamp without power cut

Info

Publication number: CN217882585U
Application number: CN202220446925.9U
Authority: CN
Inventors: 郭保忠; 赵华林; 贺文; 尤利艳; 王东旺
Original assignee: Xinzhou Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Current assignee: Xinzhou Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-11-22
Anticipated expiration: 2032-03-03

Abstract

The utility model relates to the technical field of power distribution of a power system, in particular to the field of ignition of distribution equipment of a transformer substation under the condition of electrification; in particular to a live connecting clamp without power cut. The technical problem that the existing ignition cannot be conducted without power failure is solved, the wire clamp can be clamped remotely while the cable is peeled quickly, safely and efficiently, and the unlocking can be automatically completed after the ignition is completed. A live welding clamp without power failure comprises a clamp mounting mechanism and an electric peeling mechanism; the wire clamp mounting mechanism comprises an insulating rod, a wire clamp mounting bracket made of insulating materials and horizontally mounted at the top of the insulating rod, and a telescopic mechanism mounted on the wire clamp mounting bracket; the telescopic mechanism comprises a first clamping unit and a second clamping unit which are used for clamping the parallel groove clamp and are oppositely arranged; the insulating rod is provided with a rotating shaft, wheels are arranged on the rotating shaft, a driving belt is wound between the wheels and the idler wheels, a hole for the driving belt to pass through is arranged on the wire clamp mounting support, and a handle is arranged on the rotating shaft.

Description

Live connecting clamp without power failure

Technical Field

The utility model relates to the technical field of power distribution of an electric power system, in particular to the field of ignition of distribution equipment of a transformer substation under the condition of electrification; in particular to a live connecting clamp without power cut.

Background

The fire-connecting clamp is mainly used for connecting a bus down-lead wire of a substation with an outlet terminal of electrical equipment (such as a transformer, a breaker, an isolation switch, a wall bushing and the like).

The power supply reliability of a user is affected by power failure and ignition due to the fact that an ignition clamp is not used, and the satisfaction degree of the user is reduced; the work is not cut off power supply, and the personnel need equipotential operation and have certain danger. Therefore, there is a great need for a fire welding clamp capable of effectively ensuring personnel safety, performing fire welding operation outside a safe distance, and improving personnel operation safety and equipment safe operation coefficient.

Disclosure of Invention

The utility model aims at designing a clamp of starting to exchange fire without power failure. The technical problem that the existing fire-receiving cannot be achieved without power failure is solved, the cable can be clamped remotely while being peeled quickly, safely and efficiently, and unlocking can be completed quickly after fire-receiving is completed.

The utility model discloses an adopt following technical scheme to realize: a live connecting clamp without power failure comprises a clamp mounting mechanism and an electric peeling mechanism; the wire clamp mounting mechanism comprises an insulating rod, a wire clamp mounting bracket made of insulating materials and horizontally mounted at the top of the insulating rod, and a telescopic mechanism mounted on the wire clamp mounting bracket; the telescopic mechanism comprises a first clamping unit and a second clamping unit which are used for clamping a parallel groove cable clamp and are oppositely installed, a pair of fixing blocks parallel to the direction of the cable clamp installing support is fixed on the upper surface of the cable clamp installing support, a limiting groove is formed between the fixing blocks, the first clamping unit is fixed at the end of one end of each fixing block, the second clamping unit is movably limited in the limiting groove, a roller is rotatably installed at the other end of each fixing block on the upper surface of the cable clamp installing support, and the roller is in contact with the bottom of the second clamping unit; the insulating rod is provided with a rotating shaft, wheels are arranged on the rotating shaft, a transmission belt is wound between the wheels and the roller wheel, the wire clamp mounting bracket is provided with a hole for the transmission belt to pass through, and the rotating shaft is provided with a handle;

the electric peeling mechanism comprises a peeling knife, an insulation mounting rack for mounting the peeling knife and a driving motor mounted on an insulation rod; one end of the insulating mounting rack is mounted above the second clamping unit, the other end of the insulating mounting rack extends towards one side of the first clamping unit, and the skinning knife is mounted at the other end of the insulating mounting rack; the peeling knife is staggered with the pair of clamping units; the direction of the peeling knife is perpendicular to the running direction of the pair of clamping units; the utility model discloses a peeling knife, including upper and lower halfbodies, the internal wall is equipped with the sawtooth, and the internal wall is equipped with the insulating fastening line, and the insulating fastening line is fixed on upper and lower halfbodies, and the other end then twines on driving motor's output shaft and with output shaft fixed connection.

In practical application, an operator holds the lower part of the insulating rod by hand, extends the insulating rod to a bus down lead of a substation, moves the insulating rod along the lead direction, enables the end of the lead to extend into the peeling knife, then controls the driving motor to enable the peeling knife to clamp tightly, enables the sawteeth on the inner wall of the peeling knife to tightly clamp the outer skin of the lead, and can peel off the outer insulating skin of the end of the lead by properly moving the insulating rod; and then loosening the skinning knife, enabling the lead in the skinning knife to further pass through the skinning knife, moving the insulating rod at the same time, enabling the first clamping unit and the second clamping unit to be close to the outgoing line terminal of the equipment, enabling the skinned terminal of the bus down lead of the substation to be close to the outgoing line terminal of the equipment, operating the first clamping unit and the second clamping unit to contract at the moment, and enabling the end of the skinned lead to be connected with the outgoing line terminal of the electrical equipment (such as a transformer, a circuit breaker, an isolation switch, a wall bushing and the like) to finish the operation. After connection, the clamping unit is loosened and the insulating rod is removed, and the two wires have respective supporting stress parts, so that the two wiring terminals (both are a plurality of strands of copper wires/aluminum wires) are naturally and tightly connected together after being clamped and cannot fall off.

The technical characteristics of the utility model: firstly, the original fire-connecting mode is changed, and the fire-connecting operation can be carried out outside the safe distance of the equipment when two cables are connected; and secondly, the equipment has high reliability of fire connection, and the fire connection reliability and the fire connection quality can be ensured through the cutter and the compression joint.

In order to ensure the absolute safety of operators, the utility model specially designs a corresponding mechanism which can complete the operation on the insulating rod so as to complete the operation of peeling and clamping the cable; the device practicality is strong, can thoroughly solve the difficult problem that live working safety is low that connects a fire, finally realizes carrying out remote clamping to the fastener when can be fast, safety, efficient skinning the cable, can accomplish the unblock through the procedure is automatic after the completion of connecting a fire. The power supply device is a novel product for ensuring the continuous power supply of the power system.

Drawings

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

Fig. 2 is a schematic top view of the wire clamp mounting bracket of fig. 1 and the clamping unit and the debarking knife thereon.

Fig. 3 is a schematic structural view of the utility model after the electric peeling mechanism is removed.

Fig. 4 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 3.

Fig. 5 is a schematic structural view of an electric peeling mechanism.

Figure 6 side view of a debarking knife.

1-an insulating rod, 2-a wire clamp mounting bracket, 3-a first clamping unit, 4-a second clamping unit, 5-a fixing block, 6-a roller, 7-a wheel, 8-a transmission belt, 9-a handle, 10-a peeling knife, 11-an insulating mounting frame, 12-a driving motor, 13-an insulating fastening wire, 14-a rack, 15-a clamping block, 16-a groove and 17-a leading-out wire.

Detailed Description

Example 1

As shown in fig. 1-6, a live connection clamp comprises a clamp mounting mechanism and an electric peeling mechanism; the wire clamp mounting mechanism comprises an insulating rod 1, a wire clamp mounting bracket 2 made of insulating materials and horizontally mounted at the top of the insulating rod, and a telescopic mechanism mounted on the wire clamp mounting bracket 2; the telescopic mechanism comprises a first clamping unit 3 and a second clamping unit 4 which are used for clamping a parallel groove cable clamp and are oppositely installed, a pair of fixing blocks 5 which are parallel to the trend of the cable clamp installing support 2 are fixed on the upper surface of the cable clamp installing support 2, the fixing blocks 5 form a limiting groove, the first clamping unit 3 is fixed at the end of one end of the fixing blocks 5, the second clamping unit 4 is movably limited in the limiting groove, a roller 6 is rotatably installed on the upper surface of the cable clamp installing support 2 at the other end of the fixing blocks 5, and the roller 6 is contacted with the bottom of the second clamping unit 4; the insulation rod 1 is provided with a rotating shaft, a wheel 7 is arranged on the rotating shaft, a transmission belt 8 is wound between the wheel and the roller, a hole for the transmission belt 8 to pass through is formed in the wire clamp mounting bracket 2, and a handle 9 is arranged on the rotating shaft;

the electric peeling mechanism comprises a peeling knife 10, an insulating mounting rack 11 for mounting the peeling knife 10 and a driving motor 12 mounted on the insulating rod 1; one end of the insulating mounting frame 11 is mounted above the second clamping unit 4, the other end of the insulating mounting frame 11 extends to one side of the first clamping unit 3, as can be seen from fig. 2, the skinning knife 10 is mounted at the other end of the insulating mounting frame 11, the skinning knife 10 is staggered with the pair of clamping units, when the first clamping unit and the second clamping unit act, the skinning knife does not affect each other, and a terminal of a transformer substation outgoing line after being skinned can be conveniently clamped with an equipment outgoing line; the direction of the peeling knife 10 is perpendicular to the running direction of the pair of clamping units; the peeling knife 10 is a split structure in which an upper half body and a lower half body are mutually closed, each half body is of a semi-cylindrical structure, sawteeth are arranged on the inner wall of each half body, an insulating fastening line 13 is wound outside the upper half body and the lower half body, the insulating fastening line 13 is wound outside the cylindrical peeling knife formed by closing the upper half body and the lower half body for multiple circles, one end of the insulating fastening line is fixed on the upper half body/the lower half body, and the other end of the insulating fastening line is wound on an output shaft of the driving motor 12 and is fixedly connected with the output shaft. As shown in figure 2, the device outgoing line is positioned at the upper position of the figure, a substation outgoing line (not shown in the figure) penetrates through the peeling knife, and the two outgoing line terminals are close to and clamped by moving the insulating rod. As shown in fig. 5, the insulation mounting bracket 11 is fixedly connected to the upper half body, and the insulation fastening wire winds the upper and lower halves of the peeling knife together, so that the upper and lower halves do not separate from each other, and can be contracted or loosened by the operation of the insulation fastening wire. After the barking knife peels off the outer skin of one end of the outgoing line of the transformer substation, the barking knife is properly loosened, the outgoing line is enabled to continuously extend into the barking knife to one point, then the insulating rod is operated to the terminal of the outgoing line of the equipment (the end wire core is exposed), two lead terminals are close to and clamped by the clamping unit, as the leads are all multi-strand wire cores, the leads are mutually compressed and entangled together under the clamping of the clamping unit after being connected, therefore, when the clamping unit is loosened, the insulating rod is taken away to the back, the two outgoing lines are connected together, and because the two leads do not need bearing, the two outgoing lines can not be separated.

In fig. 4, the cross section of the roller is in a structure with two large ends and a small middle part, and the middle part is contacted with the bottom of the second clamping unit to drive the second clamping unit to move back and forth.

The driving motor drives the upper half body and the lower half body of the peeling knife, so that the upper half body and the lower half body of the peeling clamp are in two states of mutually butting and clamping cables and mutually separating and loosening the cables. The insulating fastening wire 13 is wound on the skinning knife for a plurality of circles, and when the skinning knife is actually clamped or loosened, the insulating fastening wire 13 can be tightened or loosened only by small change, and the driving motor also only needs to rotate for a few circles. The handle is turned to quickly approach or separate the two clamping units.

Example 2

A rack 14 is fixed in the limiting groove, and a gear meshed with the rack 14 is arranged at the bottom of the second clamping unit 4 through a rotating shaft. The rack can make the second clamping unit move more stably, has a certain locking function, and can clamp the outgoing line without additionally applying acting force on the handle.

Example 3

As shown in fig. 4, the opposite sides of the pair of fixing blocks 5 are both provided with a groove 16 parallel to the direction of the fixing block 5, the second clamping unit comprises a block body, the cross section of the block body is in an inverted convex shape, the two opposite sides of the block body and the pair of fixing blocks are both provided with extending sections extending outwards, the extending sections are limited in the grooves, and the second clamping unit is clamped to prevent the second clamping unit from falling off. The wire clamp mounting bracket can also be provided with a limiting plate in the direction of the other end of the fixing block, so that the second clamping unit is prevented from being separated from the limiting groove from the side. The second clamping unit is long enough, the bottom of the second clamping unit is always in contact with the roller, and the second clamping unit moves forwards or backwards under the driving of the roller. The surface of the roller can adopt rough stripes to increase the friction force with the second clamping unit.

Example 4

As shown in fig. 1 and 3, a clamping block 15 is fixed on the side of the second clamping unit 4 facing the first clamping unit 3, and the side of the clamping block 15 facing the first clamping unit is in an arc-shaped structure so as to clamp the outgoing cable.

Example 5

The insulating mounting bracket 11 is composed of a pair of vertical bars and a cross bar connected between the vertical bars. The wheel 7 adopts a roller or a chain wheel; the transmission belt 8 is a belt or a chain.

The utility model discloses the device does specially the design of not having a power failure to meet a fire has simple structure, with low costs, the practicality is strong, realizes carrying out remote clamping to the fastener when can be quick, safety, efficient carry out the skin to the cable, improves staff work efficiency, ensures that the system does not have a power failure operation safety and stability and moves. In practical production, operation safety is the most important factor, so even if more investment is made on corresponding operation tools, the corresponding operation can be completed on the premise of ensuring safety, and the method is also very worthy and meets the requirement of safe production.

The utility model discloses each part all adopts insulating material to make, and the wire also makes insulating protection.

The foregoing is a more detailed description of the present invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the ordinary technical personnel who belongs to the utility model, do not deviate from the utility model discloses under the prerequisite of the design, make concrete change or change all belong to the utility model discloses a protection scope.

Claims

1. A live connecting clamp without power failure comprises a clamp mounting mechanism and an electric peeling mechanism; the wire clamp mounting mechanism is characterized by comprising an insulating rod (1), a wire clamp mounting support (2) made of insulating materials and horizontally mounted at the top of the insulating rod (1), and a telescopic mechanism mounted on the wire clamp mounting support (2); the telescopic mechanism comprises a first clamping unit (3) and a second clamping unit (4) which are used for clamping a parallel groove clamp and are oppositely installed, a pair of fixing blocks (5) parallel to the trend of the clamp installing support (2) is fixed on the upper surface of the clamp installing support (2), a limiting groove is formed between the fixing blocks (5), the first clamping unit (3) is fixed at the end of one end of each fixing block (5), the second clamping unit (4) is movably limited in the limiting groove, a roller (6) is rotatably installed on the upper surface of the clamp installing support (2) at the other end of each fixing block (5), and the roller (6) is contacted with the bottom of the second clamping unit (4); a rotating shaft is arranged on the insulating rod (1), a wheel (7) is arranged on the rotating shaft, a transmission belt (8) is wound between the wheel (7) and the roller (6), a hole for the transmission belt (8) to pass through is formed in the wire clamp mounting bracket (2), and a handle (9) is arranged on the rotating shaft;

the electric peeling mechanism comprises a peeling knife (10), an insulating mounting rack (11) for mounting the peeling knife (10), and a driving motor (12) mounted on the insulating rod (1); one end of the insulating mounting rack (11) is mounted above the second clamping unit (4), the other end of the insulating mounting rack (11) extends towards one side of the first clamping unit (3), and the peeling knife (10) is mounted at the other end of the insulating mounting rack (11); the peeling knife (10) is staggered with the pair of clamping units; the direction of the peeling knife (10) is perpendicular to the running direction of the pair of clamping units; the peeling knife (10) is of a split structure that an upper half body and a lower half body are mutually closed, each half body is of a semi-cylindrical structure, sawteeth are arranged on the inner wall of each half body, an insulating fastening line (13) is wound outside the upper half body and the lower half body, the insulating fastening line (13) is wound outside the cylindrical peeling knife formed by closing the upper half body and the lower half body for multiple circles, one end of the insulating fastening line is fixed on the upper half body and the lower half body, and the other end of the insulating fastening line is wound on an output shaft of a driving motor (12) and is fixedly connected with the output shaft.

2. The live fire welding clamp according to claim 1, wherein a rack (14) is fixed in the limiting groove, and a gear meshed with the rack (14) is arranged at the bottom of the second clamping unit (4) through a rotating shaft.

3. The uninterrupted power receiving clamp as claimed in claim 2, wherein one side of each of the pair of fixing blocks (5) opposite to each other is provided with a groove (16) parallel to the direction of the fixing block (5), the second clamping unit (4) comprises a block body, the cross section of the block body is in an inverted 'convex' shape, two sides of the block body opposite to the pair of fixing blocks (5) are provided with extending sections extending outwards, and the extending sections are limited in the grooves (16).

4. A clamp as claimed in claim 3, characterized in that the second clamping unit (4) is provided with a clamping block (15) on the side facing the first clamping unit (3), the clamping block (15) being of arcuate configuration on the side facing the first clamping unit (3).

5. A clamp as claimed in any one of claims 1 to 4, wherein the insulating mounting (11) comprises a pair of vertical bars and a cross bar connected between the vertical bars.

6. A splicing clamp according to any one of claims 1 to 4, wherein said wheels (7) are rollers or sprockets; the transmission belt (8) adopts a belt or a chain.

7. A splicing clamp without power cut according to claim 5, wherein said wheel (7) is a roller or a sprocket; the transmission belt (8) adopts a belt or a chain.