Cable pre-tensioning device for power construction

Abstract

The invention relates to the technical field of cable pre-tensioning, and discloses a cable pre-tensioning device for power construction, which comprises a working shell, one end of the working shell is rotatably connected with a hook rod, one side of the working shell is fixedly connected with a motor, and two sides of one end, far away from the hook rod, of the working shell are fixedly connected with cross rods respectively; the output end of the motor is fixedly connected with a rotating shaft, one end of the rotating shaft penetrates through the working shell and extends into the working shell, a worker clamps the hook rod to the outer wall of a cable column and then pulls the clamping rod frames, the two clamping rod frames are far away from each other, the two clamping rod frames are placed on the two sides of a cable, and the cable pre-tensioning mechanism is used for tensioning the cable. The elastic deformation of the clamping rod frames caused by the first reset spring is released, the first reset spring extrudes the sliding plate, the sliding plate drives the clamping rod frames to move, the two clamping rod frames get close to each other, then the cable is preliminarily clamped, and the subsequent pre-tensioning work of the cable is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of cable pre-tensioning, and particularly to a cable pre-tensioning device for power construction. Background Technique

[0002] Cables are a general term for items such as optical cables and electric cables. Cables have many uses, mainly for functions such as control installation, connecting devices, and transmitting electricity. They are a common and indispensable thing in daily life. During the construction of cables, a pre-tensioning device fixed to a ground fixed point is required to tension the cable, so that the cable is in a taut state after installation.

[0003] In the existing cable pre-tensioning device during the cable tensioning process, usually a hook is used to tension the outer wall of the cable. During the tensioning process of the hook, the cable may slide on the inner wall of the hook, resulting in the cable slipping, which affects the tensioning effect of the cable. Summary of the Invention

[0004] The purpose of the present invention is to provide a cable pre-tensioning device for power construction to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a cable pre-tensioning device for power construction, including a working shell. One end of the working shell is rotatably connected to a hook rod. One side of the working shell is fixedly connected to a motor. On both sides of the end of the working shell far from the hook rod, cross bars are respectively fixedly connected. The output end of the motor is fixedly connected to a rotating shaft. One end of the rotating shaft penetrates the working shell and extends to the inside of the working shell. It also includes a cable pre-tensioning mechanism. The cable pre-tensioning mechanism includes conveyor belts rotatably connected to both ends of the outer wall of the rotating shaft. One end of the conveyor belt far from the rotating shaft is rotatably connected to a round rod on the inner wall. Both ends of the round rod are rotatably connected to the inner wall of the working shell. A wire roller is fixedly connected to the outer wall of the middle end of the round rod. A winding rope is fixedly connected to the outer wall of the wire roller. One end of the winding rope penetrates the working shell and extends to the outside of the working shell. A clamping assembly is provided at the end of the winding rope.

[0006] Further, the clamping assembly includes a square plate fixedly connected to the end of the winding rope far from the wire roller. One end of the cross bar penetrates the square plate and is slidably connected to the inner wall of the square plate. A chute is opened on one side of the square plate. Both ends of the inner wall of the chute are respectively slidably connected to sliders. A first spring is fixedly connected between the two sliders.

[0007] Furthermore, one end of the slider is fixedly connected with a square shell. A sliding plate is slidably connected to the inner wall of the square shell. At the top and bottom of one side of the sliding plate, first return springs are fixedly connected. One end of each first return spring is fixedly connected to one side of the inner wall of the square shell. On the side of the sliding plate away from the first return springs, a clamping rod frame is fixedly connected. An arc-shaped groove is formed on one side at the bottom end of the clamping rod frame. A clamping block is slidably connected to the inner wall of the arc-shaped groove.

[0008] Furthermore, one side of the clamping block is fixedly connected with a connecting rod. One end of the connecting rod penetrates through the clamping rod frame and extends to the outside of the clamping rod frame. At the end of the connecting rod away from the clamping block, an inclined block is fixedly connected. One side of the inclined block is fixedly connected with a second spring. One end of the second spring is fixedly connected to one side of the outer wall of the clamping rod frame.

[0009] Furthermore, an auxiliary component is arranged on the side wall of the working shell. The auxiliary component includes rotating rods rotatably connected to both ends of the working shell near one side of the cross bar. At the end of the rotating rod away from the working shell, a lifting shell is rotatably connected. One side of the lifting shell is slidably connected to the side wall of the square plate. A concave-shaped frame is fixedly connected to the bottom of the lifting shell.

[0010] Furthermore, a vertical frame is fixedly connected to the center of the top of the concave-shaped frame. One side at the top end of the vertical frame is fixedly connected with a vertical rod. The bottom of the vertical rod is fixedly connected with a concave-shaped shell. At both ends of one side of the inner wall of the concave-shaped shell, rotating bars are respectively rotatably connected. The end of the rotating bar away from the concave-shaped shell is rotatably connected to one side of the outer wall of the square shell.

[0011] Furthermore, a protection component is arranged on the outer wall of the square shell. The protection component includes a discharge pipe communicated with the bottom end of one side of the outer wall of the square shell. One end of the discharge pipe is communicated with the inner wall of the arc-shaped groove. A bent pipe is communicated with one side of the outer wall of the clamping rod frame. One end of the bent pipe is communicated with a spraying shell. One side of the spraying shell is fixedly connected to one side of the outer wall of the clamping rod frame.

[0012] Furthermore, a scraping component is arranged on the side wall of the concave-shaped shell. The scraping component includes a connecting shell fixedly connected to the side wall of the concave-shaped shell. At the top of the inner wall of the connecting shell, a second return spring is fixedly connected. The bottom of the second return spring is fixedly connected with an arc-shaped rod frame. The outer wall of the top end of the arc-shaped rod frame is slidably connected to the inner wall of the connecting shell. One side at the bottom end of the arc-shaped rod frame is fixedly connected with a square rod. The top of the square rod penetrates through and is slidably connected with a sliding rod.

[0013] Furthermore, a third return spring is fixedly connected to the top of the square rod. The top of the third return spring is fixedly connected to the top end of the sliding rod. The bottom of the sliding rod is fixedly connected with an arc-shaped shell. At both ends of the inner wall of the arc-shaped shell, scraping plates are respectively slidably connected. An arc-shaped spring is fixedly connected between the two scraping plates.

[0014] The present invention has the following beneficial effects: (1) In the present invention, the staff member clips the hook rod on the outer wall of the cable column, and then pulls the clamping rod frame. The two clamping rod frames move away from each other, and are placed on both sides of the cable. When the clamping rod frame is released, it undergoes elastic deformation due to the first return spring. The first return spring squeezes the sliding plate, and the sliding plate drives the clamping rod frame to move. The two clamping rod frames move closer to each other, and then initially clamp the cable, facilitating the subsequent pre-tensioning work on the cable. The motor is started, and the motor drives the rotating shaft to rotate. The rotating shaft drives the conveyor belt to rotate. The conveyor belt drives the round rod to rotate. The round rod drives the wire roller to rotate. The wire roller drives the winding rope to rotate, causing the winding rope to move into the interior of the working shell. The winding rope drives the square plate to move along the outer wall of the cross bar. At this time, the working shell and the square plate gradually approach each other. Due to the extrusion of the working shell, the rotating rod drives the lifting shell to move vertically downward along the side wall of the square plate. The lifting shell drives the concave frame to descend. The concave frame drives the vertical frame to descend. The vertical frame drives the vertical rod to descend. The vertical rod drives the concave shell to move vertically downward. The concave shell drives the rotating bar to descend. Limited by the chute, the rotating bar drives the square shell and the slider to move along the inner wall of the chute. The two square shells move closer to each other. At this time, the sliding plate will move into the interior of the square shell, compressing the first return spring, thereby further squeezing the two clamping rod frames from the side and gradually increasing the clamping force on the cable, preventing the cable from slipping at the pre-tensioning work location and improving the stability of the cable pre-tensioning.

[0015] (2) In the present invention, during the downward movement of the concave shell, the concave shell drives the connecting shell to descend. The connecting shell drives the arc rod frame to descend. During the descent of the arc rod frame, it comes into contact with the top of the inclined block, squeezing the inclined block. During the extrusion of the inclined block, it drives the connecting rod to move into the interior of the clamping rod frame. The clamping rod frame drives the clamping block to move slightly. The two clamping blocks move closer to each other, thereby clamping the outer wall of the cable and further improving the stability during the pre-tensioning of the cable.

[0016] (3) In the present invention, when the clamping block moves, the clamping block no longer blocks the bent pipe. At this time, during the movement of the sliding plate into the interior of the square shell, the protective coating inside the square shell will be squeezed into the discharge pipe. The protective coating enters the interior of the arc groove through the discharge pipe. The protective coating enters the interior of the bent pipe through the arc groove. The protective coating enters the interior of the spraying shell through the bent pipe. The protective coating sprays the cable at the clamped location through the spraying shell, preventing excessive clamping from damaging the outer wall of the cable and improving the protection effect of the device on the cable.

[0017] (4) In the present invention, during the descending process of the arc-shaped rod frame, the arc-shaped rod frame drives the square rod to descend, the square rod drives the sliding rod to descend, the sliding rod drives the arc-shaped shell to fall, and the arc-shaped shell drives the scraper to fall. At this time, the bottom of the scraper will come into contact with the top of the cable. Due to the arc-shaped setting at the bottom of the scraper and the reaction force of the cable, the two scrapers move towards the inside of the arc-shaped shell. When the top end of the inner wall of the arc-shaped shell comes into contact with the top of the cable, due to the elastic deformation of the arc-shaped spring, the arc-shaped spring causes the two scrapers to slide downward along the inner wall of the arc-shaped shell, thereby buckling the outer wall of the cable to prevent the cable from sliding during the tensioning movement, which improves the stability of cable tensioning on the side. When the motor is turned off and the connection between the hook rod and the cable column is disassembled at the same time, and the device as a whole is dragged, at this time, the inner walls of the arc-shaped shell and the scraper will scrape the outer wall of the coated cable, improving the coating completion of the cable and further enhancing the protection effect of the device on the cable.

[0018] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic top view structure diagram of the whole of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the whole of the present invention; Figure 3 It is a schematic side view structure diagram of the square plate of the present invention; Figure 4 It is a schematic side view structure diagram of the sliding plate of the present invention; Figure 5 It is a schematic cross-sectional structure diagram of the square shell of the present invention; Figure 6 It is a schematic bottom view structure diagram of the arc-shaped shell of the present invention; Figure 7 It is a schematic bottom view structure diagram of the clamping rod frame of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of A in

[0021] In the drawings, the list of components represented by each reference numeral is as follows: In the figure: 1, working shell; 2, hook rod; 3, motor; 4, cross bar; 5, rotating shaft; 6, cable pre-tensioning mechanism; 61, conveyor belt; 62, round rod; 63, wire roller; 64, winding rope; 65, clamping assembly; 66, auxiliary assembly; 67, protection assembly; 68, scraping assembly; 651, square plate; 652, chute; 653, slider; 654, first spring; 655, square shell; 656, sliding plate; 657, clamping rod holder; 658, arc groove; 659, clamping block; 6510, connecting rod; 6511, inclined block; 6512, second spring; 6513, first return spring; 661, rotating rod; 662, lifting shell; 663, concave frame; 664, vertical frame; 665, vertical rod; 666, concave shell; 667, rotating bar; 671, discharge pipe; 672, elbow pipe; 673, spraying shell; 681, connecting shell; 682, second return spring; 683, arc rod holder; 684, square rod; 685, sliding rod; 686, third return spring; 687, arc shell; 688, scraper; 689, arc spring. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Example 1, please refer to Figure 1 - Figure 8 As shown in the figure, the present invention is a cable pre-tensioning device for electric power construction, including a working shell 1. One end of the working shell 1 is rotatably connected to a hook rod 2. One side of the working shell 1 is fixedly connected to a motor 3. Both sides of the end of the working shell 1 away from the hook rod 2 are fixedly connected to cross bars 4. The output end of the motor 3 is fixedly connected to a rotating shaft 5. One end of the rotating shaft 5 penetrates the working shell 1 and extends into the interior of the working shell 1. It also includes; A cable pre-tensioning mechanism 6. The cable pre-tensioning mechanism 6 includes a conveyor belt 61 rotatably connected to both ends of the outer wall of the rotating shaft 5. One end inner wall of the conveyor belt 61 away from the rotating shaft 5 is rotatably connected to a round rod 62. Both ends of the round rod 62 are rotatably connected to the inner wall of the working shell 1. The middle outer wall of the round rod 62 is fixedly connected to a wire roller 63. The outer wall of the wire roller 63 is fixedly connected to a winding rope 64. One end of the winding rope 64 penetrates the working shell 1 and extends to the outside of the working shell 1. The end of the winding rope 64 is provided with a clamping assembly 65.

[0024] The clamping assembly 65 includes a square plate 651 fixedly connected to one end of the winding rope 64 away from the wire roller 63. One end of the cross bar 4 penetrates through the square plate 651 and is slidably connected to the inner wall of the square plate 651. A chute 652 is formed on one side of the square plate 651. Two ends of the inner wall of the chute 652 are respectively slidably connected with sliders 653, and a first spring 654 is fixedly connected between the two sliders 653.

[0025] One end of the slider 653 is fixedly connected with a square shell 655. A sliding plate 656 is slidably connected to the inner wall of the square shell 655. Both the top and the bottom of one side of the sliding plate 656 are fixedly connected with first return springs 6513. One end of the first return spring 6513 is fixedly connected to one side of the inner wall of the square shell 655. A clamping rod frame 657 is fixedly connected to the side of the sliding plate 656 away from the first return spring 6513. The staff clips the hook rod 2 on the outer wall of the cable column, and then pulls the clamping rod frame 657. The two clamping rod frames 657 move away from each other, so that the two clamping rod frames 657 are placed on both sides of the cable. When the clamping rod frame 657 is released, it is elastically deformed by the first return spring 6513. The first return spring 6513 squeezes the sliding plate 656, and the sliding plate 656 drives the clamping rod frame 657 to move. The two clamping rod frames 657 move closer to each other, and then the cable is preliminarily clamped. An arc-shaped groove 658 is formed on one side of the bottom end of the clamping rod frame 657, and a clamping block 659 is slidably connected to the inner wall of the arc-shaped groove 658.

[0026] One side of the clamping block 659 is fixedly connected to a connecting rod 6510. One end of the connecting rod 6510 penetrates through the clamping rod frame 657 and extends to the outside of the clamping rod frame 657. The end of the connecting rod 6510 away from the clamping block 659 is fixedly connected to an inclined block 6511. One side of the inclined block 6511 is fixedly connected to a second spring 6512. One end of the second spring 6512 is fixedly connected to one side of the outer wall of the clamping rod frame 657. Start the motor 3. The motor 3 drives the rotating shaft 5 to rotate. The rotating shaft 5 drives the conveyor belt 61 to rotate. The conveyor belt 61 drives the round rod 62 to rotate. The round rod 62 drives the wire roller 63 to rotate. The wire roller 63 drives the winding rope 64 to rotate, so that the winding rope 64 moves into the interior of the working shell 1. The winding rope 64 drives the square plate 651 to move along the outer wall of the cross bar 4. At this time, the working shell 1 and the square plate 651 gradually approach. Under the extrusion of the working shell 1, the rotating rod 661 drives the lifting shell 662 to vertically descend along the side wall of the square plate 651. The lifting shell 662 drives the concave frame 663 to descend. The concave frame 663 drives the vertical frame 664 to descend. The vertical frame 664 drives the vertical rod 665 to descend. The vertical rod 665 drives the concave shell 666 to vertically descend. The concave shell 666 drives the rotating bar 667 to descend. Limited by the chute 652, the rotating bar 667 drives the square shell 655 and the slider 653 to move along the inner wall of the chute 652. The two square shells 655 approach each other. At this time, the sliding plate 656 will move into the interior of the square shell 655, compressing the first return spring 6513, thereby further extruding the two clamping rod frames 657 from the side and gradually increasing the clamping force on the cable.

[0027] Embodiment 2. An auxiliary component 66 is arranged on the side wall of the working shell 1. The auxiliary component 66 includes rotating rods 661 rotatably connected to both ends of the side of the working shell 1 close to the cross bar 4. The end of the rotating rod 661 away from the working shell 1 is rotatably connected to a lifting shell 662. One side of the lifting shell 662 is slidably connected to the side wall of the square plate 651. The bottom of the lifting shell 662 is fixedly connected to a concave frame 663.

[0028] A vertical frame 664 is fixedly connected to the center of the top of the concave frame 663. One side of the top end of the vertical frame 664 is fixedly connected to a vertical rod 665. The bottom of the vertical rod 665 is fixedly connected to a concave shell 666. Both ends of one side of the inner wall of the concave shell 666 are respectively rotatably connected to rotating bars 667. The end of the rotating bar 667 away from the concave shell 666 is rotatably connected to the outer wall side of the square shell 655.

[0029] A protective component 67 is provided on the outer wall of the square shell 655. The protective component 67 includes a discharge pipe 671 connected to the bottom end of one side of the outer wall of the square shell 655. One end of the discharge pipe 671 is connected to the inner wall of the arc-shaped groove 658. A bent pipe 672 is connected to one side of the outer wall of the clamping rod frame 657. One end of the bent pipe 672 is connected to a spray material shell 673. One side of the spray material shell 673 is fixedly connected to one side of the outer wall of the clamping rod frame 657. When the clamping block 659 moves, the clamping block 659 no longer blocks the bent pipe 672. At this time, when the sliding plate 656 moves towards the inside of the square shell 655, the protective coating inside the square shell 655 will be squeezed into the discharge pipe 671. The protective coating enters the inside of the arc-shaped groove 658 through the discharge pipe 671. The protective coating enters the inside of the bent pipe 672 through the arc-shaped groove 658. The protective coating enters the inside of the spray material shell 673 through the bent pipe 672. The protective coating sprays the cable at the clamped position through the spray material shell 673, preventing excessive clamping from damaging the outer wall of the cable and improving the protection effect of the device on the cable.

[0030] A scraping component 68 is provided on the side wall of the concave shell 666. The scraping component 68 includes a connecting shell 681 fixedly connected to the side wall of the concave shell 666. The top of the inner wall of the connecting shell 681 is fixedly connected to a second return spring 682. The bottom of the second return spring 682 is fixedly connected to an arc-shaped rod frame 683. The outer wall of the top end of the arc-shaped rod frame 683 is slidably connected to the inner wall of the connecting shell 681. When the concave shell 666 moves downward, the concave shell 666 drives the connecting shell 681 to move downward. The connecting shell 681 drives the arc-shaped rod frame 683 to move downward. During the downward movement of the arc-shaped rod frame 683, it will contact the top of the inclined block 6511, causing the inclined block 6511 to be squeezed. During the process of the inclined block 6511 being squeezed, it will drive the connecting rod 6510 to move towards the inside of the clamping rod frame 657. The clamping rod frame 657 drives the clamping block 659 to move slightly, and the two clamping blocks 659 move closer to each other, thereby clamping the outer wall of the cable and further improving the stability of the cable during pre-tensioning. One side of the bottom end of the arc-shaped rod frame 683 is fixedly connected to a square rod 684. The top of the square rod 684 penetrates and is slidably connected to a sliding rod 685.

[0031] The top of the square rod 684 is fixedly connected to a third return spring 686. The top of the third return spring 686 is fixedly connected to the top end of the sliding rod 685. The bottom of the sliding rod 685 is fixedly connected to an arc-shaped shell 687. The two ends of the inner wall of the arc-shaped shell 687 are respectively slidably connected to a scraping plate 688. An arc-shaped spring 689 is fixedly connected between the two scraping plates 688. When the motor 3 is turned off and the connection between the hook rod 2 and the cable column is disassembled at the same time, and the device as a whole is dragged, at this time, the inner walls of the arc-shaped shell 687 and the scraping plate 688 will scrape the outer wall of the coated cable, improving the coating completion of the cable and further improving the protection effect of the device on the cable.

[0032] During use, the staff member clips the hook rod 2 onto the outer wall of the cable column, and then pulls the clamping rod holder 657. The two clamping rod holders 657 move away from each other, placing the two clamping rod holders 657 on both sides of the cable. When the clamping rod holder 657 is released, it undergoes elastic deformation due to the first return spring 6513. The first return spring 6513 squeezes the sliding plate 656, and the sliding plate 656 drives the clamping rod holder 657 to move. The two clamping rod holders 657 move closer to each other, and then initially clamp the cable, facilitating the subsequent pre-tensioning work on the cable. Start the motor 3. The motor 3 drives the rotating shaft 5 to rotate. The rotating shaft 5 drives the conveyor belt 61 to rotate. The conveyor belt 61 drives the round rod 62 to rotate. The round rod 62 drives the wire roller 63 to rotate. The wire roller 63 drives the winding rope 64 to rotate, causing the winding rope 64 to move into the interior of the working shell 1. The winding rope 64 drives the square plate 651 to move along the outer wall of the cross bar 4. At this time, the working shell 1 and the square plate 651 gradually approach. Due to the extrusion of the working shell 1, the rotating rod 661 drives the lifting shell 662 to move vertically downward along the side wall of the square plate 651. The lifting shell 662 drives the concave frame 663 to descend. The concave frame 663 drives the vertical frame 664 to descend. The vertical frame 664 drives the vertical rod 665 to descend. The vertical rod 665 drives the concave shell 666 to move vertically downward. The concave shell 666 drives the rotating bar 667 to descend. Limited by the chute 652, the rotating bar 667 drives the square shell 655 and the slider 653 to move along the inner wall of the chute 652. The two square shells 655 move closer to each other. At this time, the sliding plate 656 will move into the interior of the square shell 655, compressing the first return spring 6513, thereby further squeezing the two clamping rod holders 657 from the side and gradually increasing the clamping force on the cable, preventing the cable from slipping at the pre-tensioning working position and improving the stability of the cable pre-tensioning.

[0033] During the downward movement of the concave shell 666, the concave shell 666 drives the connecting shell 681 to descend. The connecting shell 681 drives the arc rod holder 683 to descend. During the descent of the arc rod holder 683, it will come into contact with the top of the inclined block 6511, squeezing the inclined block 6511. During the extrusion of the inclined block 6511, it will drive the connecting rod 6510 to move into the interior of the clamping rod holder 657. The clamping rod holder 657 drives the clamping block 659 to move slightly. The two clamping blocks 659 move closer to each other, thereby clamping the outer wall of the cable and further improving the stability during the pre-tensioning of the cable.

[0034] When the clamping block 659 is moving, the clamping block 659 no longer blocks the bent pipe 672. At this time, when the sliding plate 656 moves into the square shell 655, the protective coating inside the square shell 655 will be squeezed into the discharge pipe 671. The protective coating enters the inside of the arc-shaped groove 658 through the discharge pipe 671, enters the inside of the bent pipe 672 through the arc-shaped groove 658, enters the inside of the spraying shell 673 through the bent pipe 672, and the protective coating sprays the cable at the clamped position through the spraying shell 673, preventing damage to the outer wall of the cable caused by excessive clamping, and improving the protection effect of the device on the cable.

[0035] When the arc-shaped rod frame 683 descends, the arc-shaped rod frame 683 drives the square rod 684 to descend, the square rod 684 drives the sliding rod 685 to descend, the sliding rod 685 drives the arc-shaped shell 687 to fall, and the arc-shaped shell 687 drives the scraping plate 688 to fall. At this time, the bottom of the scraping plate 688 will contact the top of the cable. Due to the arc-shaped setting of the bottom of the scraping plate 688 and the reaction force of the cable, the two scraping plates 688 move into the inside of the arc-shaped shell 687. When the top end of the inner wall of the arc-shaped shell 687 contacts the top of the cable, due to the elastic deformation of the arc-shaped spring 689, the arc-shaped spring 689 makes the two scraping plates 688 slide down along the inner wall of the arc-shaped shell 687, thereby buckling the outer wall of the cable. When the motor 3 is turned off and the connection between the hook rod 2 and the cable column is disassembled at the same time, and the device as a whole is dragged, at this time, the inner walls of the arc-shaped shell 687 and the scraping plate 688 will scrape the outer wall of the coated cable, improving the coating completion of the cable and further improving the protection effect of the device on the cable.

[0036] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A cable pre-tensioning device for electric power construction, comprising a working shell (1), characterized in that: One end of the working shell (1) is rotatably connected to a hook rod (2). One side of the working shell (1) is fixedly connected to a motor (3). On both sides of the end of the working shell (1) away from the hook rod (2), cross bars (4) are respectively fixedly connected. The output end of the motor (3) is fixedly connected to a rotating shaft (5). One end of the rotating shaft (5) penetrates through the working shell (1) and extends into the interior of the working shell (1). It also includes; A cable pre-tensioning mechanism (6). The cable pre-tensioning mechanism (6) includes conveyor belts (61) rotatably connected to both ends of the outer wall of the rotating shaft (5). One end of the conveyor belt (61) away from the rotating shaft (5) is rotatably connected to a round rod (62) on the inner wall. Both ends of the round rod (62) are rotatably connected to the inner wall of the working shell (1). A wire roller (63) is fixedly connected to the outer wall of the middle end of the round rod (62). A winding rope (64) is fixedly connected to the outer wall of the wire roller (63). One end of the winding rope (64) penetrates through the working shell (1) and extends to the outside of the working shell (1). A clamping assembly (65) is arranged at the end of the winding rope (64).

2. The cable pre-tensioning device for electric power construction according to claim 1, wherein: The clamping assembly (65) includes a square plate (651) fixedly connected to one end of the winding rope (64) away from the wire roller (63). One end of the cross bar (4) penetrates through the square plate (651) and is slidably connected to the inner wall of the square plate (651). A chute (652) is opened on one side of the square plate (651). At both ends of the inner wall of the chute (652), sliders (653) are respectively slidably connected. A first spring (654) is fixedly connected between the two sliders (653).

3. The cable pre-tensioning device for electric power construction according to claim 2, wherein: One end of the slider (653) is fixedly connected to a square shell (655). A sliding plate (656) is slidably connected to the inner wall of the square shell (655). At the top and bottom of one side of the sliding plate (656), first return springs (6513) are respectively fixedly connected. One end of the first return spring (6513) is fixedly connected to one side of the inner wall of the square shell (655). A clamping rod frame (657) is fixedly connected to the side of the sliding plate (656) away from the first return spring (6513). An arc-shaped groove (658) is opened on one side at the bottom end of the clamping rod frame (657). A clamping block (659) is slidably connected to the inner wall of the arc-shaped groove (658).

4. The cable pre-tensioning device for electric power construction according to claim 3, wherein: One side of the clamping block (659) is fixedly connected to a connecting rod (6510). One end of the connecting rod (6510) penetrates through the clamping rod frame (657) and extends to the outside of the clamping rod frame (657). An inclined block (6511) is fixedly connected to the end of the connecting rod (6510) away from the clamping block (659). A second spring (6512) is fixedly connected to one side of the inclined block (6511). One end of the second spring (6512) is fixedly connected to one side of the outer wall of the clamping rod frame (657).

5. The cable pre-tensioning device for electric power construction according to claim 4, characterized in that: The side wall of the working shell (1) is provided with an auxiliary component (66). The auxiliary component (66) includes rotating rods (661) rotatably connected to both ends of the working shell (1) near one side of the cross bar (4). One end of the rotating rod (661) away from the working shell (1) is rotatably connected to a lifting shell (662). One side of the lifting shell (662) is slidably connected to the side wall of the square plate (651). The bottom of the lifting shell (662) is fixedly connected to a concave frame (663).

6. The cable pre-tensioning device for electric power construction according to claim 5, characterized in that: A vertical frame (664) is fixedly connected to the center of the top of the concave frame (663). One side of the top end of the vertical frame (664) is fixedly connected to a vertical rod (665). The bottom of the vertical rod (665) is fixedly connected to a concave shell (666). Both ends of one side of the inner wall of the concave shell (666) are respectively rotatably connected to rotating strips (667). One end of the rotating strip (667) away from the concave shell (666) is rotatably connected to the outer wall of one side of the square shell (655).

7. The pre-tensioning device for cables used in electric power construction according to claim 6, wherein: A protective component (67) is provided on the outer wall of the square shell (655). The protective component (67) includes a discharge pipe (671) communicated with the bottom end of one side of the outer wall of the square shell (655). One end of the discharge pipe (671) is communicated with the inner wall of the arc-shaped groove (658). A bent pipe (672) is communicated with one side of the outer wall of the clamping rod frame (657). One end of the bent pipe (672) is communicated with a spraying shell (673). One side of the spraying shell (673) is fixedly connected to the outer wall of one side of the clamping rod frame (657).

8. The pre-tensioning device for cables in electric power construction according to claim 7, characterized in that: A scraping component (68) is provided on the side wall of the concave shell (666). The scraping component (68) includes a connecting shell (681) fixedly connected to the side wall of the concave shell (666). A second return spring (682) is fixedly connected to the top of the inner wall of the connecting shell (681). The bottom of the second return spring (682) is fixedly connected to an arc-shaped rod frame (683). The outer wall of the top end of the arc-shaped rod frame (683) is slidably connected to the inner wall of the connecting shell (681). One side of the bottom end of the arc-shaped rod frame (683) is fixedly connected to a square rod (684). The top of the square rod (684) penetrates and is slidably connected to a sliding rod (685).

9. The cable pre-tensioning device for electric power construction according to claim 8, characterized in that: A third return spring (686) is fixedly connected to the top of the square rod (684). The top of the third return spring (686) is fixedly connected to the top end of the sliding rod (685). The bottom of the sliding rod (685) is fixedly connected to an arc-shaped shell (687). Scrapers (688) are respectively slidably connected to both ends of the inner wall of the arc-shaped shell (687). An arc-shaped spring (689) is fixedly connected between the two scrapers (688).

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