Cable gliding prevention device for hot-line work robot

Abstract

According to the cable gliding prevention device, a U-shaped plate serves as a support body, the U-shaped plate is divided into a U-shaped plate first side face serving as the front side and a U-shaped plate second side face serving as the rear side, two small plates protrude out of the two sides of the bottom of the U-shaped plate, and round holes are reserved in the plates; a groove of the U-shaped plate serves as a notch of the support body, and two guide rods are distributed on the two sides of the notch; four cylindrical through holes are formed in the positions, close to four corners, of the first side face of the U-shaped plate; one of the two insulation pads is in the front, the other insulation pad is in the rear, a front insulation pad is formed and embedded in the first side face of the U-shaped plate, the two sides of the front insulation pad are bent to surround the rear insulation pad, and the two insulation pads form the front insulation pad; a rear insulation pad is fixed to the second side face of the U-shaped plate, and after the front insulation pad and the rear insulation pad clamp the cable, the cable prevents the front insulation pad from displacing, and cable clamping is achieved.

Description

Technical Field

[0001] The invention belongs to the field of non-stop power distribution network, in particular to a lead line sliding prevention device used when a live working robot performs high voltage power lead line connection operations during non-stop power distribution network operations. Background Art

[0002] Live-line work in distribution networks mainly involves stripping insulated wires, disconnecting live leads, and removing foreign objects. In order to improve the automation level and safety of live-line work, reduce the labor intensity of operators and the threat of strong electromagnetic fields to operators, the use of live-line working robots to replace manual work meets the development needs of power companies.

[0003] At present, the supporting equipment of the live-line working robot is mainly used for live-line disconnection and connection. There is no equipment suitable for multi-circuit connection work. When connecting multi-circuit lines, the robot cannot work from the inside of the line, but needs to work from the outside of the line to prevent phase-to-phase short circuits, which require insulators for support and isolation. The existing devices are either to simply buckle the cable to prevent it from detaching but allow it to slide up and down, or to buckle the lead and tighten it with a tool to directly fix the lead in the insulator. Both methods cannot guarantee the success rate of the operation. Summary of the invention

[0004] The purpose of the present invention is to provide a cable slip-proof device which can be applied to multi-circuit lead-in operations, automatically clamp cables to prevent them from slipping down or slipping out, and ensure the success rate of the operation.

[0005] When working with multi-circuit lead wires, if you simply buckle the cable to prevent it from detaching, it can slide up and down. However, during the operation, the cable will sag or slide out of the insulator due to its own gravity and the robot's movement. Once the lead wire sags, the operation cannot be completed, resulting in operation failure. Even if the operation is completed, there is a risk of short circuit due to long-term exposure to wind and sun. If you buckle the lead wire and tighten it with a tool to directly fix the lead wire in the insulator, it is heavily dependent on the position of the lead wire, but the grabbing position cannot be determined, and the robot's arm span and operating load are limited, so it cannot drag the cable over a long distance. If the cable is too short after being fixed, the operation cannot be completed.

[0006] The cable slip prevention device is characterized in that: a U-shaped plate is used as the bracket body, the U-shaped plate is divided into the first side of the U-shaped plate as the front side, the second side of the U-shaped plate as the rear side, two small plates protrude from both sides of the bottom of the U-shaped plate, and circular holes are reserved on the plates; the groove of the U-shaped plate serves as the notch of the bracket body, and two guide rods are distributed on both sides of the notch; four cylindrical through holes are opened near the four corners of the first side of the U-shaped plate.

[0007] Furthermore, two insulating pads, one in front and the other in the back, form a front insulating pad embedded on the first side of the U-shaped plate. The front insulating pad is bent on both sides to surround the back insulating pad. The back insulating pad surface is slightly smaller than the front insulating pad surface, and the front insulating pad surface is basically the same size as the first side. Four circular holes are opened near the four corners of the front insulating pad, and four long pins are introduced into the circular holes. The four holes are aligned with the cylindrical holes on the first side of the U-shaped plate; the four pins are respectively covered with hard springs, and the four pins are then passed through the four cylindrical holes on the side of the U-shaped plate 2, and the spring diameter is larger than the cylindrical hole diameter.

[0008] After the U-shaped plate is placed horizontally, two limit blocks protrude from the upper and lower parts of the middle part of the outer side of the U-shaped plate on the second side of the U-shaped plate, and each limit 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 limit block with a size of only 1 / 4 of a cylinder is placed in each hole, and the limit block has a step surface and an arc surface, and the limit block is connected to the second side of the U-shaped plate by a light spring; in a natural state, a portion of the arc surface of the limit block is pushed out by the spring and exposed from the second side of the U-shaped plate.

[0009] Furthermore, there are two bent flat levers of the same shape and structure, with a pin through hole left at the bend, and a limit plunger next to the through hole. The rod can be divided into two sections from the bend, one section is called the first part of the lever, and the other section is called the second part of the lever; one end of the pin is provided with a pin cap, and the other end has a circular through hole left from the middle of the cylinder; the pin is passed through one lever, the upper and lower pin holes on the first side of the U-shaped plate, and another lever in sequence, and then a fixed metal strip is passed through the pin circular hole to prevent the pin and the lever from moving up and down or detaching; the lever can be rotated around the pin, and the up and down floating space is small.

[0010] Furthermore, when the lever is in the first position, the extension direction of the second part of the lever is consistent with the extension direction of the lever side fixed to the U-shaped plate along the notch direction; the first part of the lever faces the first side of the U-shaped plate. A stopper is fixed to the first part of the lever, and two threaded holes are left on the side of the stopper, which is fixed to the first part of the lever by two top screws.

[0011] A device for preventing lead wires from sliding down for a live working robot, the device is used to clamp the lead wires and pull the lead wires to move horizontally; the device is characterized in that: the device has a bracket body and a connection part fixed to a mechanical arm, the bracket body has a notch for accommodating the cable to enter and remain therein, the front and rear sides of the notch are respectively provided with a front insulating pad and a rear insulating pad, the bracket body is provided with a trigger assembly for triggering the front insulating pad to move closer to the rear insulating pad, the trigger assembly has a pair of levers, and when the cable enters the notch, the trigger lever changes from a first position to a second position; when the lever is in the first position, the distance between the front insulating pad and the rear insulating pad is greater than the wire diameter of the cable; when the lever is in the second position, the front insulating pad is applied with an external force to move in the direction of the rear insulating pad or maintain a movement trend. After the front insulating pad and the rear insulating pad clamp the cable, the cable prevents the front insulating pad from moving, thereby achieving cable clamping. When the cable needs to be pulled, the mechanical arm drives the device to move to pull the cable.

[0012] Furthermore, the lever has a first part and a second part. When the lever is in the first position, the block of the first part presses against the front insulating pad to prevent the front insulating pad from moving backward, and the gap allows the cable to enter; when the lever is in the second position, the block of the first part leaves the front insulating pad, and the second part closes the gap to prevent the cable from popping out in the opposite direction.

[0013] Furthermore, a limit assembly is provided on the bracket body, and the limit assembly includes an elastic mechanism and a limit block. The bracket body is provided with a limit block opening for accommodating the limit block, and the limit block is exposed from the limit block window. The limit block has an arc surface and a step surface. When the lever moves from the first position to the second position, the first part and the second part successively cross the arc surface by squeezing the limit block, and when the lever reaches the second position, the step surface of the limit block contacts the second part; when the lever squeezes the limit block, the elastic mechanism is compressed; after the lever releases the limit block, the elastic block recovers its deformation.

[0014] That is, when the lever is in the first position, the gap is opened to allow the cable to enter from the upper entrance; when the lever reaches the second position, the second part closes the upper entrance and locks 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 an assembly formed by a guide rod and a spring.

[0015] Furthermore, the front insulating pad and the limiting assembly are arranged at the front of the bracket body, the front of the bracket body has a cavity, the surface of the cavity facing the rear side plate is open, the front insulating pad is inserted into the front 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 of the bracket body; when the first part of the lever presses against the front insulating pad, the elastic assembly is compressed; when the first part releases the front insulating pad, the tendency of the elastic assembly to restore the deformation provides a backward force for the front insulating pad. The elastic assembly can be a column of elastic material, or an assembly formed by a guide rod and a spring.

[0016] Furthermore, the first part of the lever includes a main rod and a stopper, the stopper and the main rod are fixedly connected, the stopper is in the cavity at the front of the bracket body, and the main rod is outside the cavity; the first part of the lever has a groove, and the cavity wall at the front of the bracket body is in the groove; the groove allows the first part to displace relative to the wall without friction.

[0017] Furthermore, the lever is an integrated curved rod, an acute angle is formed between the first main rod and the second main rod, a hinge is provided at the angle to be hinged to the rear of the bracket body; the rear insulating pad is fixed to the rear of the bracket body. The first part of the lever has a first extension section, and the second part has a second extension section. When the lever is in the first position, the first extension section contacts the arc surface of the limit block and is parallel to the step surface; when the lever is in the second position, the second extension section faces the step surface.

[0018] Furthermore, a pair of guide rods are fixed at the entrance of the gap, and the distance between the two guide rods is the shortest at the position where the guide rods contact the bracket body, and the distance between the two guide rods is the farthest at the position where the guide rods are farthest from the bracket body. The two guide rods form a trumpet-like shape, which converges from the far end to the gap and guides the cable to enter the gap.

[0019] The present invention can clamp the cable by moving the front insulating pad toward the rear insulating pad, which can adapt to the cable diameter of 50mm²~240mm². At the same time, it can prevent the cable from sliding downward and slipping out of the insulator. The boom truck moves upward to tighten the cable to prevent the risk of interphase contact short circuit caused by loose cables. This process can be completed by the robot itself, simulating manual operation to stretch upward multiple times for tightening, without being limited by the operating radius. When the front insulating pad is clamped toward the rear insulation point, the gravity and friction of the clamped cable itself will make the reaction force of the insulating pad greater, effectively preventing slippage.

[0020] The setting of the trigger component and the lever ensures that the cable is reliably positioned in the gap, and the lever is locked in the second position by the limit block to close the gap, so that the cable cannot escape from the gap, ensuring that there is no contact risk with the line.

[0021] The lever and the elastic component of the front insulating pad cooperate to automatically lock without electric control or reliance on external tools for locking, which is more suitable for practical applications.

[0022] The process of the anti-slip device for fixing the lead wire on the insulator is as follows: first, the insulator is horizontally fixed on the cross arm, at which time the notch is basically kept in a horizontal state, and the lever of the present invention is in the first position; when the cable moves vertically into the notch, the cable pushes the first part of the lever to rotate, and the first part of the lever pushes the front insulating pad so that the elastic mechanism of the front insulating pad is in a compressed state, and at the same time, the second part of the lever follows the first part of the lever to rotate, and when the second part of the lever rotates to the arc surface of the limit block, the second part of the lever squeezes the arc surface so that the limit block is gradually compressed until the second part of the lever passes over The limit block pops up and the stop surface faces the second part of the lever. The lever first passes over the limit block until the first block of the lever is separated from the front insulating pad. At this time, the front insulating pad loses the support of the first block of the lever, 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 sags too much and needs to be tightened, the clamping tool can continue to clamp the lead, and the boom truck can be lifted upward to make the robot move upward to drag the cable. After tightening, release the clamping tool to complete the lead fixation, thereby meeting the prerequisite for overlapping multi-circuit lead connection operations.

[0023] During the process of releasing the clamping state of the insulating pad, it is necessary to manually press the elastic part of the front insulating pad and push the first part of the lever in the opposite direction to press the first block of the lever against the front insulating pad. At this time, release the front insulating pad to be supported by the block, and then manually press the limit block, and continue to manually push the limit block in the opposite direction of the notch. After the second part of the lever is away from the limit block, release the limit block and continue to push it until the first part of the lever moves to the limit block position and is blocked.

[0024] The advantages of the present invention are that it can adapt to various types of cables, the lead wires are automatically locked after being inserted to prevent them from detaching, and they are automatically clamped to prevent the cables from sliding down or sliding out. After clamping, they can be stretched upward in one direction to ensure the cable length and meet the operation requirements without being affected by the robot's movements and its own gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0026] Figure 2 It is a front view of the present invention.

[0027] Figure 3 is a schematic diagram of an insulating pad assembly.

[0028] Figure 4 It is a schematic diagram of the present invention in which the leads are about to enter the direction of view.

[0029] Figure 5 It is a stereoscopic schematic diagram of a lead wire about to enter the present invention.

[0030] Figure 6 It is a schematic diagram of the lead wire entering the present invention in the front view direction.

[0031] Figure 7 It is a three-dimensional schematic diagram of the lead wire entering the present invention. DETAILED DESCRIPTION Example

[0032] like Figure 1 , 2 As shown, the cable A anti-slip device consists of a U-shaped plate as a bracket body 1, 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 protrude from both sides of the bottom of the U-shaped plate, and circular holes are reserved on the plates; the groove of the U-shaped plate serves as a notch 2 of the bracket body 1, and two guide rods are distributed on both sides of the notch 2; four cylindrical through holes 1 are opened near 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 in the back, form a front insulating pad 3 embedded on the first side of the U-shaped plate. The front insulating pad 32 is bent on both sides to surround the rear insulating pad 31. The rear insulating pad 31 is slightly smaller than the front insulating pad surface 32. The front insulating pad surface 32 is basically the same size as the first side. Four circular holes are opened near the four corners of the front insulating pad 3. Four long pins 33 are introduced into the circular holes. The four holes are aligned with the cylindrical holes on the first side of the U-shaped plate; the four pins 1 are respectively covered with hard springs, and the four pins are then passed through the four cylindrical holes on the side of the U-shaped plate 2. The diameter of the hard spring is larger than the diameter of the cylindrical hole.

[0034] After the U-shaped plate is placed horizontally, two limit blocks 6 protrude from the upper and lower parts of the middle part of the outer side of the U-shaped plate on the second side of the U-shaped plate, and each limit block 6 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 limit block 6 with a size of only 1 / 4 of a cylinder is placed in each hole, and the limit block 6 has a step surface and an arc surface, and the limit block 6 is connected to the second side of the U-shaped plate through a lightweight spring 2; in a natural state, a portion of the arc surface of the limit block 6 is pushed out by the spring 2 and exposed from the second side of the U-shaped plate.

[0035] like Figure 1 As shown, there are two other bent flat levers 51 of the same shape and structure, with a pin through hole reserved at the bend, and a limit plunger next to the through hole. The rod can be divided into two sections from the bend, one section is called the first section 51A of the lever 51, and the other section is called the second section 51B of the lever 51; one end of the pin is provided with a pin cap, and the other end has a circular through hole from the middle of the cylinder; the pin is sequentially passed through one lever 51, the upper and lower pin holes on the first side of the U-shaped plate, and the other lever 51, and then a fixed metal strip is passed through the pin circular hole to prevent the pin and the lever 51 from moving up and down or detaching; the lever 51 can be rotated around the pin, and the floating space up and down is small.

[0036] like Figure 4-7When the lever 51 is in the first position, the second portion 51B of the lever 51 extends in the same direction as the notch 2 and the side of the lever 51 fixed to the U-shaped plate; the first portion 51A of the lever 51 faces the first side of the U-shaped plate. A stopper 52 is fixed to the first portion 51A of the lever 51, and two threaded holes are left on the side of the stopper 52, which is fixed to the first portion 51A of the lever 51 by two top screws.

[0037] The block 52 presses 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 lever 51 is blocked by the limit block 6, and under the joint action of the limit plunger, the lever 51 will not rotate arbitrarily; when the lever 51 moves from the first position to the second position, the second part 51B of the lever 51 rotates with the first part 51A, and the block 52 of the first part 51A is always pressed against the front insulating pad 3 and moves relative to the front insulating pad 3. The movement process squeezes the front insulating pad 3 in an arc but does not compress it to 100%.

[0038] When the first part 51A of the lever 51 is moved, the second part 51B follows the first part 51A and gradually approaches the stop block 6, and moves along the arc surface of the stop block 6 and gradually passes through the arc surface to squeeze the stop block 6. When the second part 51B passes over the arc surface of the stop block 6, the stop block 6 is quickly ejected by the spring, and the step surface of the stop block 6 blocks the second part 51B of the lever 51 to prevent reverse rotation. At this time, the first part 51A of the lever 51 is continuously pushed forward to rotate slightly, and the stop block 52 immediately moves out from the edge of the front insulating pad 3. At this time, the spring where the front insulating pad 3 is located immediately recovers its deformation, and the front insulating pad moves backward to the insulating tape, and the two insulating pads clamp the cable A.

[0039] During the process of releasing the clamping state of the insulating pad, it is necessary to manually press the elastic part of the front insulating pad 3, and push the first part 51A of the lever 51 in the reverse direction to press the first part 51A of the lever 51 against the front insulating pad 3. At this time, the front insulating pad 3 is released and supported by the block 52, and then the limit block 6 is manually pressed, and the limit block 6 is continued to be manually pushed in the reverse direction along the notch 2. After the second part 51B of the lever 51 is away from the limit block 6, the limit block 6 is released, and the lever is continued to be pushed until the first part 51A of the lever 51 moves to the position of the limit block 6 and is blocked.

[0040] like Figure 1-7As shown, in some embodiments, a device for preventing lead from sliding down for a live working robot is used to clamp the lead and pull the lead in translation; the device comprises a support body 1 and a connection portion fixed to a mechanical arm, the support body 1 has a notch 2 for accommodating the cable A to enter and remain therein, a front insulating pad 3 and a rear insulating pad 4 are respectively arranged on the front and rear sides of the notch 2, a triggering assembly for triggering the front insulating pad 3 to move closer to the rear insulating pad 4 is arranged on the support body 1, and the triggering assembly has a pair of levers 51, and when the cable A enters the notch 2, the triggering lever 51 is changed from a first position to a second position; when the lever 51 is in the first position, the distance between the front insulating pad 3 and the rear insulating pad 4 is greater than the wire diameter of the cable A; when the lever 51 is in the second position, the front insulating pad 3 is applied with an external force to move in the direction of the rear insulating pad 4 or maintain a movement trend. 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 achieving the clamping of the cable A. When the cable A needs to be pulled, the mechanical arm drives the device to move, so as to pull the cable A.

[0041] As shown in some embodiments, the lever 51 has a first part 51A and a second part 51B. When the lever 51 is in the first position, the block 52 of the first part 51A presses 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 lever 51 is in the second position, the block 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 popping out in the opposite direction.

[0042] In some embodiments, a limit assembly is provided in the bracket body 1, and the limit assembly includes an elastic mechanism and a limit block 6. The bracket body 1 is provided with a limit block opening for accommodating the limit block 6, and the limit block 6 is exposed in the limit block window. The limit block 6 has an arc surface and a step surface. When the lever 51 moves from the first position to the second position, the first part 51A and the second part 51B successively cross the arc surface by squeezing the limit block 6. When the lever 51 reaches the second position, the step surface of the limit block 6 contacts the second part 51B; when the lever 51 squeezes the limit block 6, the elastic mechanism is compressed; after the lever 51 releases the limit block 6, the elastic mechanism resumes its deformation.

[0043] That is, when the lever 51 is in the first position, the notch 2 is opened to allow the cable A to enter from the upper entrance; when the lever 51 reaches the second position, the second portion 51B closes the upper entrance to lock the cable A in the notch 2. At the same time, the front insulating pad 3 and the rear insulating pad 4 lock the cable A through friction. The elastic mechanism can be a column of elastic material, or an assembly 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 of the bracket body 1, the front of the bracket body 1 has a cavity, the surface of the cavity facing the rear side plate is open, the front insulating pad 3 is inserted into the front of the bracket body 1 from the opening and the opening of the cavity is closed; the front insulating pad 3 is fixed on the front insulating pad 3 bracket, and an elastic assembly 3A is arranged between the front insulating pad 3 bracket and the front of the bracket body 1; when the first part 51A of the lever 51 presses 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 deformation trend 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 lever 51 includes a main rod and a stopper 52, the stopper 52 and the main rod are fixedly connected, the stopper 52 is in the cavity at the front of the bracket body 1, and the main rod is outside the cavity; the first part 51A of the lever 51 has a groove 53, and the cavity wall at the front of the bracket body 1 is in the groove 53; the groove 53 allows the first part 51A to displace relative to the wall without friction.

[0046] In some embodiments, the lever 51 is an integrated bent rod, and an acute angle is formed between the first part 51A main rod and the second part 51B main rod, and a hinge 54 is provided at the angle to be hinged to the rear of the bracket body 1; the rear insulating pad 4 is fixed to the rear of the bracket body 1. The first part 51A of the lever 51 has a first part 51A extension section, and the second part 51B has a second part 51B extension section. When the lever 51 is in the first position, the first part 51A extension section contacts the arc surface of the limit block 6 and is parallel to the step surface; when the lever 51 is in the second position, the second part 51B extension section faces the step surface.

[0047] In some embodiments, a pair of guide rods 7 are fixed at the entrance of the gap 2, and the distance between the two guide rods is the shortest at the position where the guide rods contact the bracket body 1, and the distance between the two guide rods is the farthest at the position where the guide rods are farthest from the bracket body 1. The two guide rods form a bell-shaped mouth, which converges from the far end to the gap 2 and guides the cable A to enter the gap 2.

[0048] The above-mentioned specific implementation cases are used to illustrate the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. The cable anti-slip device is characterized by: A U-shaped plate is used as the bracket body, and the U-shaped plate is divided into the first side of the U-shaped plate as the front side, and the second side of the U-shaped plate as the rear side. Two small plates protrude on both sides of the bottom of the U-shaped plate, and circular holes are reserved on the plates; the groove of the U-shaped plate serves as the notch of the bracket body, and two guide rods are distributed on both sides of the notch; four cylindrical through holes are opened near the four corners of the first side of the U-shaped plate; two insulating pads are formed, one in front and the other in the rear to form a front insulating pad embedded on the first side of the U-shaped plate, and the two insulating pads are bent on both sides of the front insulating pad to surround the rear insulating pad, and the two insulating pads form the front insulating pad; the rear insulating pad is fixed on the second side of the U-shaped plate, and when the front insulating pad and the rear insulating pad clamp the cable, the cable prevents the front insulating pad from moving, thereby realizing cable clamping.

2. The cable slip prevention device according to claim 1, characterized in that: The insulating pad surface at the rear is slightly smaller than the insulating pad surface at the front, and the insulating pad surface at the front is basically the same size as the first side surface; four circular holes are opened near the four corners of the front insulating pad, and 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 surface of the U-shaped plate; the four pins are respectively covered with hard springs, and the four pins then pass through the four cylindrical holes on the side surface of the U-shaped plate 2, and the diameter of the spring is larger than the diameter of the cylindrical hole.

3. The cable sliding prevention device according to claim 2, characterized in that: There are two bent flat levers with the same shape and structure, with a pin through hole at the bend and a limit plunger next to the through hole. The rod can be divided into two sections from the bend, one section is called the first part of the lever, and the other section is called the second part of the lever; one end of the pin is equipped with a pin cap, and the other end has a circular through hole from the middle of the cylinder; the pin is passed through one lever, the upper and lower pin holes on the first side of the U-shaped plate, and the other lever in sequence, and then a fixed metal strip is used to pass through the pin circular hole.

4. The cable sliding prevention device according to claim 3, characterized in that: When the lever is in the first position, the extension direction of the second part of the lever is consistent with the extension direction of the notch and the side of the U-shaped plate on which the lever is fixed; the first part of the lever faces the first side of the U-shaped plate; a stopper is fixed on the first part of the lever, and two threaded holes are left on the side of the stopper, which is fixed to the first part of the lever by two top screws.

5. A device for preventing lead wire from sliding down for a live working robot, which is used to clamp the lead wire and pull the lead wire to move horizontally; it is characterized by: The device comprises a support body and a connection part fixed to a mechanical arm, the support body comprises a notch for accommodating the cable to enter and remain therein, a front insulating pad and a rear insulating pad are respectively arranged on the front and rear sides of the notch, a triggering assembly for triggering the front insulating pad to move toward the rear insulating pad is arranged on the support body, the triggering assembly comprises a pair of levers, when the cable enters the notch, the triggering levers are changed from a first position to a second position; when the levers are in the first position, the distance between the front insulating pad and the rear insulating pad is greater than the wire diameter of the cable; when the levers are in the second position, an external force is applied to the front insulating pad to move in the direction of the rear insulating pad or to maintain a movement trend.

6. The lead wire slip prevention device for a live working robot according to claim 5, characterized in that: The lever has a first part and a second part. When the lever is in the first position, the block of the first part presses against the front insulating pad to prevent the front insulating pad from moving backward, and the gap allows the cable to enter; when the lever is in the second position, the block of the first part leaves the front insulating pad, and the second part closes the gap to prevent the cable from popping out in the opposite direction.

7. The lead wire slip prevention device for a live working robot according to claim 5, characterized in that: The bracket body is provided with a limit assembly, which includes an elastic mechanism and a limit block. The bracket body is provided with a limit block opening for accommodating the limit block, and the limit block is exposed at the limit block window. The limit block has an arc surface and a step surface. When the lever moves from the first position to the second position, the first part and the second part successively cross the arc surface by squeezing the limit block. When the lever reaches the second position, the step surface of the limit block contacts the second part. When the lever squeezes the limit block, the elastic mechanism is compressed. After the lever releases the limit block, the elastic block recovers its deformation.

8. The lead wire slip prevention device for a live working robot according to claim 5, characterized in that: The front insulating pad and the limiting component 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 rear side plate is open. The front insulating pad is inserted 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 component is arranged between the front insulating pad bracket and the front part of the bracket body. When the first part of the lever presses against the front insulating pad, the elastic component is compressed. When the first part releases the front insulating pad, the tendency of the elastic component to restore the deformation provides a backward force for the front insulating pad.

9. The lead wire slip prevention device for a live working robot according to claim 6, characterized in that: The first part of the lever comprises a main rod and a stopper, the stopper and the main rod are fixedly connected, the stopper is in the cavity at the front of the bracket body and the main rod is outside the cavity; the first part of the lever has a groove, the cavity wall at the front of the bracket body is in the groove; the groove enables the first part to displace relative to the wall without friction.

10. The lead wire slip prevention device for a live working robot according to claim 9, characterized in that: The lever is an integrated curved rod, and an acute angle is formed between the first main rod and the second main rod, and a hinge is arranged at the angle to be hinged to the rear of the bracket body; the rear insulating pad is fixed to the rear of the bracket body. The first part of the lever has a first extension section, and the second part has a second extension section. When the lever is in the first position, the first extension section contacts the arc surface of the limit block and is parallel to the step surface; when the lever is in the second position, the second extension section faces the step surface.

Images