Anti-cable-sliding device for live-line robot

Abstract

The anti-cable sliding device is characterized by comprising a U-shaped plate serving as a support body, wherein the U-shaped plate is divided into a first side of the U-shaped plate serving as a front side and a second side of the U-shaped plate serving as a rear side, two small plates protruding from the bottom of the U-shaped plate, and a circular hole reserved on each of the small plates; a groove of the U-shaped plate serves as a gap of the support body, two guide rods are arranged on the two sides of the gap, four cylindrical through holes are arranged on the first side of the U-shaped plate close to four corners, two insulating pads are arranged on the first side of the U-shaped plate, one in front and the other in back, the insulating pad in front is bent on both sides to surround the insulating pad in back, and the two insulating pads form a front insulating pad; the second side of the U-shaped plate is provided with a rear insulating pad, the cable is clamped between the front insulating pad and the rear insulating pad, the cable prevents displacement of the front insulating pad, and the cable clamping is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of distribution network non-power-off, and particularly relates to a device for preventing a lead from sliding down during high-voltage lead connection operation by a live working robot during distribution network live working. BACKGROUND

[0002] Distribution network live working mainly completes tasks such as insulation wire stripping, live lead connection and disconnection, and foreign matter removal. In order to improve the automation level and safety of live working and reduce the labor intensity of operators and the personal threat of strong electromagnetic fields to operators, using a live working robot to replace manual live working meets the development needs of power enterprises.

[0003] At present, the supporting tools of the live working robot are mainly used for live lead connection and disconnection, and there is no tool suitable for multi-loop lead connection operation. During multi-loop lead connection, the robot cannot work from the inside of the line, and needs to be supported and isolated by insulators to prevent inter-phase short circuit. The existing devices are of two types. One is to simply hold the cable to prevent it from sliding up and down, and the other is to hold the lead and then use a tool to tighten it directly to fix the lead in the insulator. Both types cannot guarantee the success rate of the operation. SUMMARY

[0004] The purpose of the present application is to provide a device for preventing a cable from sliding down, which can be applied to multi-loop lead connection operation, automatically clamps to prevent the cable from sliding down or sliding out, and guarantees the success rate of the operation.

[0005] During multi-loop lead connection operation, if the cable is simply held to prevent it from sliding up and down, the cable will sag or slide out of the insulator during the operation process due to its own gravity and the action of the robot. Once the lead sags, the operation cannot be continued, resulting in operation failure. Even if the operation is completed, there is a risk of short circuit due to wind and sun exposure for a long time. If the lead is held and then a tool is used to tighten it directly to fix the lead in the insulator, it is heavily dependent on the position of the grasped lead, but the grasping position cannot be determined, and the robot's arm span and operating load are limited, so it cannot drag the cable for a long distance. If the cable is too short after being fixed, the operation cannot be completed.

[0006] The device for preventing a cable from sliding down is characterized in that: a U-shaped plate is used as a support body, the U-shaped plate is divided into a first side of the U-shaped plate as a front side and a second side of the U-shaped plate as a rear side, two small plates are protruded from the bottom of the U-shaped plate, and a circular hole is reserved on each small plate; a groove of the U-shaped plate is used as a gap of the support body, and two guide rods are distributed on both sides of the gap; four cylindrical through holes are opened at positions close to four corners of the first side of the U-shaped plate.

[0007] Further, two insulating pads are arranged in front and back of the U-shaped plate, and the front insulating pad is embedded on the first side of the U-shaped plate. The two sides of the front insulating pad are bent to surround the back insulating pad. The surface of the back insulating pad is slightly smaller than that of the front insulating pad, and the surface of the front insulating pad is basically the same as the size of the first side. Four round holes are arranged near the four corner positions of the front insulating pad, and four long pins are introduced into the round holes. The four hole positions are aligned with the cylindrical hole positions of the first side of the U-shaped plate. The four pins are respectively sleeved with hard springs, and the four pins are respectively inserted into the four cylindrical holes of the two sides of the U-shaped plate. The diameter of the spring is larger than the diameter of the cylindrical hole.

[0008] After the U-shaped plate is placed horizontally, two limiting blocks are respectively protruded on the upper and lower positions of the middle part of the outer side of the second side of the U-shaped plate, and each limiting block has a pin hole. After the U-shaped plate is placed horizontally, square holes are left on the second side of the U-shaped plate, and a limiting block with only 1 / 4 of a cylinder is arranged in each hole. The limiting block has a stepped surface and a circular arc surface, and the limiting block is connected with the second side of the U-shaped plate through a light spring. In the natural state, the circular arc surface of the limiting block is partially pushed out by the spring and exposed from the second side of the U-shaped plate.

[0009] Further, there are two bending flat push rods with the same shape structure, and a pin hole is left beside the bending part. The rod can be divided into two parts from the bending part, one part is called the first part of the push rod, and the other part is called the second part of the push rod. One end of the pin is provided with a pin cap, and the other end is provided with a circular hole in the middle of the cylinder. The pin is sequentially inserted through one push rod, the upper and lower pin holes of the first side of the U-shaped plate, the other push rod, and then a fixed metal strip is inserted through the pin hole to prevent the pin and the push rod from moving up and down or separating. The push rod can be rotated around the pin, and the up and down floating space is small.

[0010] Further, when the push rod is in the first position, the extension direction of the second part of the push rod is consistent with the extension direction of the fixed push rod side of the U-shaped plate along the direction of the gap. The first part of the push rod faces the first side of the U-shaped plate. A stop block is fixed on the first part of the push rod, and two threaded holes are left on the side surface of the stop block. The two threaded holes are fixed on the first part of the push rod through two top screws.

[0011] The device is used for clamping the lead wire and pulling the lead wire to move horizontally. The device has a support body and a connecting part fixed with a mechanical arm. The support body has a gap for accommodating the cable to enter and stay inside. The front side and the rear side of the gap are respectively provided with a front insulating pad and a rear insulating pad. The support body is provided with a triggering assembly for triggering the front insulating pad to move towards the rear insulating pad. The triggering assembly has a pair of push rods. When the cable enters the gap, the push rods are triggered to change from a first position to a second position. When the push rods are in the first position, the distance between the front insulating pad and the rear insulating pad is greater than the diameter of the cable. When the push rods are in the second position, the front insulating pad is moved or keeps the moving trend in the direction of the rear insulating pad under the action of an external force. When the front insulating pad and the rear insulating pad clamp the cable, the cable prevents the front insulating pad from moving, thereby realizing the clamping of the cable. When the cable needs to be pulled out, the mechanical arm moves the device to realize the pulling out of the cable.

[0012] Further, the push rod has a first part and a second part. When the push rod is in the first position, the stopper of the first part abuts against the front insulating pad to prevent the front insulating pad from moving backward, and the gap allows the cable to enter. When the push rod is in the second position, the stopper of the first part leaves the front insulating pad, and the second part closes the gap to prevent the cable from bouncing back.

[0013] Further, the support body is provided with a limiting assembly. The limiting assembly includes an elastic mechanism and a limiting block. The support body is provided with a limiting block port for accommodating the limiting block. The limiting block is exposed to the limiting block window. The limiting block has a circular arc surface and a stepped surface. When the push rod moves from the first position to the second position, the first part and the second part pass through the circular arc surface in turn by extruding the limiting block. When the push rod reaches the second position, the stepped surface of the limiting block is in contact with the second part. When the push rod extrudes the limiting block, the elastic mechanism is compressed. After the push rod releases the limiting block, the elastic block restores the deformation.

[0014] That is, when the push rod is in the first position, the gap is open, allowing the cable to enter from the upper inlet. When the push rod reaches the second position, the second part closes the upper inlet, locking the cable in the gap. At the same time, the front insulating pad and the rear insulating pad lock the cable through friction. The elastic mechanism can be a column of elastic material or a component formed by a guide rod and a spring.

[0015] Further, the front insulating pad and the limiting assembly are arranged at the front part of the support body. The front part of the support body has a cavity. The surface of the cavity facing the rear side plate is an opening. The front insulating pad is loaded into the front part of the support body from the opening and closes the opening of the cavity. The front insulating pad is fixed on the front insulating pad support. An elastic assembly is arranged between the front insulating pad support and the front part of the support body. When the first part of the push rod abuts against the front insulating pad, the elastic assembly is compressed. When the first part releases the front insulating pad, the elastic assembly restores the deformation trend to provide a backward force to the front insulating pad. The elastic assembly can be a column of elastic material or a component formed by a guide rod and a spring.

[0016] Further, the first part of the lever comprises a main rod and a stopper, the stopper is fixedly connected with the main rod, the stopper is in the cavity of the front part of the support body, and the main rod is outside the cavity; the first part of the lever has a groove, and the cavity wall of the front part of the support body is in the groove; the groove enables the first part to be frictionally displaced relative to the wall.

[0017] Further, the lever is an integral bent rod, an acute angle is formed between the main rod of the first part and the main rod of the second part, a hinge is arranged at the acute angle and is hingedly connected with the rear part of the support body; the rear insulating pad is fixed to the rear part of the support body. The first part of the lever has a first part extension, and the second part has a second part extension; when the lever is in the first position, the first part extension is in contact with the circular arc surface of the limiting block and is parallel to the stepped surface; when the lever is in the second position, the second part extension faces the stepped surface.

[0018] Further, a pair of guide rods are fixed at the entrance of the gap, the distance between the two guide rods is the closest at the part where the guide rods are in contact with the support body, and the distance between the two guide rods is the farthest at the part where the guide rods are farthest away from the support body. The two guide rods form a horn-like mouth, which converges from the far end to the gap and guides the cable into the gap.

[0019] The cable can be clamped by the movement of the front insulating pad to the rear insulating pad, and the cable diameter can be adapted to 50mm²-240mm², and the cable can be prevented from sliding downward out of the insulator, the cable can be tensioned by the upward movement of the boom truck, and the risk of interphase contact short circuit caused by loose cable can be prevented; and the process can be completed by the robot itself, simulating manual operation to stretch upward multiple times to tension, and being not limited by the working radius. When the front insulating pad is clamped to the rear insulating pad, the reaction force of the insulating pad is larger due to the gravity and friction of the clamped cable, and the downward sliding is effectively prevented.

[0020] The arrangement of the triggering assembly and the lever ensures the reliable position of the cable in the gap, and the lever is locked in the second position by the limiting block to close the gap, so that the cable cannot come out of the gap, and the contact risk of the line is ensured.

[0021] The elastic assembly of the lever and the front insulating pad is matched to automatically lock without the need for electric control or external tools, which is more suitable for practical application.

[0022] The process of the anti-sliding device for fixing the lead wire on the insulator is as follows: first, the insulator is horizontally fixed on the cross arm, at this time, the gap is basically kept in a horizontal state, and the push rod of the application is in the first position; when the cable moves vertically into the gap, the cable pushes the first part of the push rod to rotate, the first part of the push rod pushes the front insulating pad to make the elastic mechanism of the front insulating pad in a compressed state, at the same time, the second part of the push rod rotates along with the first part of the push rod, when the second part of the push rod rotates to the arc surface of the limiting block, the second part of the push rod extrudes the arc surface to make the limiting block gradually compressed, until the second part of the push rod passes the limiting block, the limiting block pops out, and the stop surface faces the second part of the push rod, the push rod first passes the limiting block, until the first part of the push rod block is separated from the front insulating pad, at this time, the front insulating pad loses the support of the first part of the push rod block, and the front insulating pad approaches the rear insulating pad until it is stopped by the cable, at this time, the cable is compressed; at this time, if the cable is too much downward, it needs to be tightened, the clamping jaw tool can be continuously clamped to the lead wire, the aerial platform is lifted upward to make the robot move upward to drag the cable, after the cable is tightened, the clamping jaw tool is released, and the lead wire fixing is completed, and the prerequisite condition for the lap joint of multiple loop lead wires is achieved.

[0023] The releasing process of the clamping state of the insulating pad needs to manually press the elastic piece of the front insulating pad, reversely push the first part of the push rod, and top the first part of the push rod block on the front insulating pad, at this time, the front insulating pad is released and topped by the block, the limiting block is manually pressed again, and the limiting block is reversely moved along the direction of the gap by continuously manually pushing, after the second part of the push rod is away from the limiting block, the limiting block is released, and the push rod is continuously pushed until the first part of the push rod moves to the position of the limiting block and is blocked.

[0024] The application has the advantages that it can adapt to various types of cables, automatically lock after the lead wire is drawn in to prevent disengagement, automatically clamp to prevent the cable from sliding downward or sliding out, and can be stretched in one direction after clamping to ensure the length of the cable and not be affected by the action of the robot and its own gravity to meet the operation requirements. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective view of the application.

[0026] Figure 2 is a front view of the application.

[0027] Figure 3 is a schematic view of the insulating pad assembly.

[0028] Figure 4 is a schematic view of the lead wire entering the application in the front direction.

[0029] Figure 5 is a perspective view of the lead wire entering the application.

[0030] Figure 6 is a schematic view of the lead wire entering the application in the front direction.

[0031] Figure 7 This is a three-dimensional schematic diagram of the lead wire entering the present invention. Detailed Implementation Example

[0032] like Figure 1 , 2 As shown, the anti-cable A sliding device consists of a U-shaped plate as the support body 1. The U-shaped plate is divided into a first side as the front side and a second side as the rear side. Two small plates protrude from the bottom of the U-shaped plate on both sides, and circular holes are reserved on each plate. The groove of the U-shaped plate serves as the notch 2 of the support body 1, and two guide rods are distributed on both sides of the notch 2. Four cylindrical through holes 1 are opened at the four corners of the first side of the U-shaped plate.

[0033] like Figure 3 As shown, two insulating pads, one in front and the other behind, form a front insulating pad 3 embedded in the first side of the U-shaped plate. The front insulating pad 32 is bent on both sides, surrounding the rear insulating pad 31. The surface of the rear insulating pad 31 is slightly smaller than that of the front insulating pad 32, while the surface of the front insulating pad 32 is basically the same size as the first side. Four round holes are made near the four corners of the front insulating pad 3, and four long pins 33 are inserted into the round holes. The four holes are aligned with the cylindrical holes on the first side of the U-shaped plate. Each of the four pins is fitted with a rigid spring, and the four pins then pass through the four cylindrical holes on the side of the U-shaped plate. The diameter of the rigid spring is larger than the diameter of the cylindrical hole.

[0034] After the U-shaped plate is placed horizontally, two limiting blocks 6 protrude from the upper and lower parts of the middle of the outer side of the U-shaped plate on the second side of the U-shaped plate. Each limiting block 6 has a pin hole. After the U-shaped plate is placed horizontally, a square hole is left on the upper part of the second side of the U-shaped plate. A limiting block 6 with only 1 / 4 of a cylinder is placed in each hole. The limiting block 6 has a stepped surface and an arc surface. The limiting block 6 is connected to the second side of the U-shaped plate by a light spring 2. In the natural state, the arc surface of the limiting block 6 is pushed out by the spring 2 and protrudes from the second side of the U-shaped plate.

[0035] like Figure 1 As shown, there are two other bent, flat levers 51 with the same shape and structure. The bends have pin holes, and there is a limiting plunger next to the pin holes. The levers can be divided into two sections from the bends. One section is called the first part 51A of lever 51, and the other section is called the second part 51B of lever 51. One end of the pin has a pin cap, and the other end has a circular through hole in the middle of the cylinder. The pin is passed through one lever 51, the two pin holes on the first side of the U-shaped plate, and the other lever 51 in sequence. Then, a fixing metal strip is passed through the pin hole to prevent the pin and lever 51 from moving up and down or coming off. The lever 51 can rotate around the pin when it is turned, and the vertical floating space is small.

[0036] like Figures 4-7, the second part 51B of the poking lever 51 extends along the direction of the gap 2 and the direction of the U-shaped plate fixed side of the poking lever 51 is consistent; the first part 51A of the poking lever 51 faces the first side of the U-shaped plate. A stopper 52 is fixed on the first part 51A of the poking lever 51, and two threaded holes are left on the side of the stopper 52, which are fixed on the first part 51A of the poking lever 51 by two jacks.

[0037] The stopper 52 pushes against the front insulating pad 3, and the elastic part of the front insulating pad 3 is in a compressed state of 80%; at this time, the first part 51A of the poking lever 51 is blocked by the limiting block 6, and the poking lever 51 will not rotate arbitrarily under the joint action of the limiting plunger; when the poking lever 51 moves from the first position to the second position, the second part 51B of the poking lever 51 rotates with the first part 51A, and the first part 51A stopper 52 is always pushed against the front insulating pad 3 and moves relative to the front insulating pad 3, and the moving process is in an arc to extrude the front insulating pad 3 but will not be compressed to 100%.

[0038] When the first part 51A of the poking lever 51 is poked, the second part 51B gradually approaches the limiting block 6 along the arc surface of the limiting block 6 and gradually extrudes the limiting block 6 by passing through the arc surface. When the second part 51B passes through the arc surface of the limiting block 6, the limiting block 6 is quickly ejected by the spring, and the step surface of the limiting block 6 blocks the second part 51B of the poking lever 51 to prevent reverse rotation; at this time, the first part 51A of the poking lever 51 is continuously pushed forward and slightly rotated, and the stopper 52 immediately draws out from the edge of the front insulating pad 3; at this time, the spring of the front insulating pad 3 immediately recovers the deformation, and the front insulating pad moves to the rear insulating tape, and the two insulating pads clamp the cable A.

[0039] The release process of the clamping state of the insulating pad requires manually pressing the elastic part of the front insulating pad 3 and reversely poking the first part 51A of the poking lever 51, and the first part 51A of the poking lever 51 is blocked by the stopper 52 on the front insulating pad 3; at this time, the front insulating pad 3 is released by the stopper 52, and the limiting block 6 is manually pressed and reversely moved along the direction of the gap 2; after the second part 51B of the poking lever 51 moves away from the limiting block 6, the limiting block 6 is released, and the poking is continuously performed until the first part 51A of the poking lever 51 moves to the position of the limiting block 6 and is blocked.

[0040] As Figures 1-7As shown, in some embodiments, the live-line working robot is provided with a lead wire anti-slipping device for clamping the lead wire and pulling the lead wire to move horizontally; the device has a support body 1 and a connecting part fixed with the mechanical arm, the support body 1 has a gap 2 for accommodating the cable A to enter and stay inside, the front side and the rear side of the gap 2 are respectively provided with a front insulating pad 3 and a rear insulating pad 4, the support body 1 is provided with a triggering assembly for triggering the front insulating pad 3 to move towards the rear insulating pad 4, the triggering assembly has a pair of push rods 51, when the cable A enters the gap 2, the push rod 51 is triggered to change from a first position to a second position; when the push rod 51 is in the first position, the distance between the front insulating pad 3 and the rear insulating pad 4 is greater than the diameter of the cable A; when the push rod 51 is in the second position, the front insulating pad 3 is moved or keeps the trend of moving in the direction of the rear insulating pad 4 under the action of external force. After the front insulating pad 3 and the rear insulating pad 4 clamp the cable A, the cable A prevents the front insulating pad 3 from moving, thereby realizing the clamping of the cable A. When it is necessary to pull the cable A, the mechanical arm drives the device to move, thereby realizing the pulling of the cable A.

[0041] As shown, in some embodiments, the push rod 51 has a first part 51A and a second part 51B, when the push rod 51 is in the first position, the stopper 52 of the first part 51A abuts against the front insulating pad 3 to prevent the front insulating pad 3 from moving backward, and the gap 2 allows the cable A to enter; when the push rod 51 is in the second position, the stopper 52 of the first part 51A leaves the front insulating pad 3, and the second part 51B closes the gap 2 to prevent the cable A from bouncing back in the opposite direction.

[0042] In some embodiments, the support body 1 is provided with a limiting assembly, the limiting assembly includes an elastic mechanism and a limiting block 6, the support body 1 is provided with a limiting block port for accommodating the limiting block 6, the limiting block 6 is exposed to the limiting block window, the limiting block 6 has a circular arc surface and a stepped surface, when the push rod 51 moves from the first position to the second position, the first part 51A and the second part 51B pass through the circular arc surface in turn by extruding the limiting block 6, and when the push rod 51 reaches the second position, the stepped surface of the limiting block 6 is in contact with the second part 51B; when the push rod 51 extrudes the limiting block 6, the elastic mechanism is compressed; after the push rod 51 releases the limiting block 6, the elastic mechanism restores the deformation.

[0043] That is, when the push rod 51 is in the first position, the gap 2 is open and allows the cable A to enter from the upper inlet; when the push rod 51 reaches the second position, the second part 51B closes the upper inlet to lock the cable A inside the gap 2. At the same time, the front insulating pad 3 and the rear insulating pad 4 lock the cable A by friction force. The elastic mechanism can be a column of elastic material, or a component formed by a guide rod and a spring.

[0044] In some embodiments, the front insulating pad 3 and the limiting assembly are arranged at the front part of the support body 1, the front part of the support body 1 has a cavity, the face of the cavity towards the back side plate is an opening, the front insulating pad 3 is loaded into the front part of the support body 1 from the opening and closes the opening of the cavity; the front insulating pad 3 is fixed on the front insulating pad 3 support, the elastic assembly 3A is arranged between the front insulating pad 3 support and the front part of the support body 1; when the first part 51A of the push rod 51 abuts against the front insulating pad 3, the elastic assembly 3A is compressed; when the first part 51A releases the front insulating pad 3, the elastic assembly 3A restores the tendency of deformation to provide a backward force for the front insulating pad 3. The elastic assembly 3A can be a column of elastic material or an assembly formed by a guide rod and a spring.

[0045] In some embodiments, the first part 51A of the push rod 51 comprises a main rod and a stopper 52, the stopper 52 is fixedly connected with the main rod, the stopper 52 is in the cavity of the front part of the support body 1 and the main rod is outside the cavity; the first part 51A of the push rod 51 has a slot 53, the wall of the cavity of the front part of the support body 1 is in the slot 53; the slot 53 enables the first part 51A to be frictionlessly displaced relative to the wall.

[0046] In some embodiments, the push rod 51 is an integral bent rod, an acute angle is formed between the main rod of the first part 51A and the main rod of the second part 51B, a hinge 54 is arranged at the acute angle and is hingedly connected with the back part of the support body 1; the back insulating pad 4 is fixed on the back part of the support body 1. The first part 51A of the push rod 51 has a first part 51A extension and the second part 51B has a second part 51B extension, when the push rod 51 is in the first position, the first part 51A extension contacts the arc face of the limiting block 6 and is parallel to the step face; when the push rod 51 is in the second position, the second part 51B extension faces the step face.

[0047] In some embodiments, a pair of guide rods 7 are fixed at the entrance of the gap 2, the distance between the two guide rods is the closest at the part where the guide rods contact the support body 1 and the distance between the two guide rods is the farthest at the part where the guide rods are farthest away from the support body 1. The two guide rods form a horn-like mouth that converges from the far end to the gap 2 and guides the cable A into the gap 2.

[0048] The above specific embodiments are used to explain and illustrate the present application and are only preferred embodiments of the present application, but not limit the present application, any modification, equivalent replacement, improvement, etc. made to the present application falls into the protection scope of the present application.

Claims

1. A cable slide prevention device, characterized by: The U-shaped plate is divided into a first side as a front side and a second side as a rear side, two small plates are protruded from the bottom of the U-shaped plate, and a circular hole is reserved on the plate; the slot of the U-shaped plate is a gap of the support body, two guide rods are distributed on both sides of the gap; four cylindrical through holes are opened on the first side of the U-shaped plate near four corners; two insulating pads are arranged on the first side of the U-shaped plate, one in front and the other behind, to form a front insulating pad; the front insulating pad is bent on both sides to surround the rear insulating pad, and the two insulating pads form a front insulating pad; the rear insulating pad is fixed on the second side of the U-shaped plate; the cable is clamped between the front insulating pad and the rear insulating pad, the cable prevents the displacement of the front insulating pad, and the cable is clamped; the surface of the rear insulating pad is slightly smaller than that of the front insulating pad, and the surface of the front insulating pad is basically the same as the first side; four circular holes are opened on the front insulating pad near four corners, four long pins are introduced into the circular holes, and the four hole positions are aligned with the cylindrical hole positions on the first side of the U-shaped plate; the four pins are respectively sleeved with hard springs, the four pins are respectively inserted into the four cylindrical holes on the two sides of the U-shaped plate, and the diameter of the spring is greater than the diameter of the cylindrical hole; two bending flat lever rods have the same shape structure, a pin hole is reserved at the bending position, a limiting plunger is reserved beside the pin hole, the lever rod can be divided into two parts at the bending position, one part is called the first part of the lever rod, and the other part is called the second part of the lever rod; the pin has a pin cap at one end and a circular hole reserved in the middle of the cylinder at the other end; the pin is sequentially inserted into one lever rod, the upper and lower pin holes on the first side of the U-shaped plate, the other lever rod, and then a fixed metal strip is inserted into the pin hole.

2. The cable slide prevention device of claim 1, wherein: When the lever rod is in the first position, the extension direction of the second part of the lever rod is consistent with the extension direction of the fixed lever rod side of the U-shaped plate along the direction of the gap; the first part of the lever rod faces the first side of the U-shaped plate; a stop block is fixed on the first part of the lever rod, two threaded holes are reserved on the side surface of the stop block, and the stop block is fixed on the first part of the lever rod by two jacks.

3. A live-line robot anti-down sliding device, which is used for clamping a live line and dragging the live line to move horizontally; characterized in that: The device has a support body and a connecting part fixed with a mechanical arm, the support body has a gap for accommodating a cable to enter and stay in the gap, a front insulating pad and a rear insulating pad are arranged on the front side and the rear side of the gap respectively, the support body is provided with a triggering assembly for triggering the front insulating pad to move towards the rear insulating pad, the triggering assembly has a pair of lever rods, the lever rods are triggered to change from a first position to a second position when the cable enters the gap; when the lever rods are in the first position, the distance between the front insulating pad and the rear insulating pad is greater than the diameter of the cable; when the lever rods are in the second position, the front insulating pad is moved or maintains the movement trend towards the rear insulating pad under the action of an external force; the support body is provided with a limiting assembly, the limiting assembly includes an elastic mechanism and a limiting block, the support body is provided with a limiting block window for accommodating the limiting block, the limiting block is exposed to the limiting block window, the limiting block has a circular surface and a stepped surface, when the lever rods move from the first position to the second position, the first part and the second part pass through the circular surface by extruding the limiting block in sequence, when the lever rods reach the second position, the stepped surface of the limiting block is in contact with the second part; when the lever rods extrude the limiting block, the elastic mechanism is compressed; after the lever rods release the limiting block, the elastic block restores the deformation.

4. The live-line work robot lead-down preventing device according to claim 3, wherein: The poking rod has a first part and a second part. When the poking rod is in the first position, the stopper of the first part abuts against the front insulating pad to prevent the front insulating pad from moving backward, and the gap allows the cable to enter. When the poking rod is in the second position, the stopper of the first part is away from the front insulating pad, and the second part closes the gap to prevent the cable from bouncing backward.

5. The live wire slide-preventing device for live-wire robotized work according to claim 3, characterized in that: The front insulating pad and the limiting assembly are arranged at the front part of the bracket body. The front part of the bracket body has a cavity, and the surface of the cavity facing the back plate is an opening. The front insulating pad is loaded into the front part of the bracket body from the opening and closes the opening of the cavity. The front insulating pad is fixed on the front insulating pad bracket, and an elastic assembly is arranged between the front insulating pad bracket and the front part of the bracket body. When the first part of the poking rod abuts against the front insulating pad, the elastic assembly is compressed. When the first part releases the front insulating pad, the elastic assembly restores the tendency of deformation to provide a backward force for the front insulating pad.

6. The live-line work robot lead-down preventing device according to claim 5, wherein: The first part of the poking rod includes a main rod and a stopper, and the stopper and the main rod are fixedly connected. The stopper is in the cavity of the front part of the bracket body, and the main rod is outside the cavity. The first part of the poking rod has a groove, and the cavity wall of the front part of the bracket body is in the groove. The groove allows the first part to be frictionally displaced relative to the wall.

7. The live-line work robot lead-down preventing device according to claim 6, wherein: The poking rod is an integral bent rod. An acute angle is formed between the first part main rod and the second part main rod, and a hinge is arranged at the acute angle to be hingedly connected with the back part of the bracket body. The back insulating pad is fixed on the back part of the bracket body. The first part of the poking rod has a first part extension, and the second part has a second part extension. When the poking rod is in the first position, the first part extension contacts the arc surface of the limiting block and is parallel to the step surface. When the poking rod is in the second position, the second part extension faces the step surface.

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