Electric power engineering cable laying traction device and traction method thereof

Abstract

The invention relates to the technical field of cable laying, in particular to an electric power engineering cable laying traction device which comprises a matching plate, the upper end of the matching plate is rotationally connected with a limiting wire wheel, a cavity is formed in the limiting wire wheel, the outer wall of the limiting wire wheel is fixedly connected with a traction high-pressure pipe, and the traction high-pressure pipe is wound on the outer wall of the limiting wire wheel. A traction shell is arranged at the upper end of the matching plate, an installation threaded pipe is further fixedly connected to the inner wall of the traction shell, a limiting mechanism capable of limiting and fixing a cable is fixedly connected to the interior of the installation threaded pipe, a trigger mechanism is arranged between the installation threaded pipe and the traction high-pressure pipe, and a driving motor is further fixedly installed at the upper end of the matching plate; the output end of the driving motor is fixedly connected with the limiting wire wheel through a disconnection mechanism, and the triggering mechanism can trigger the disconnection mechanism to disconnect the driving motor and the limiting wire wheel when the tension of the cable is too large.

Description

Technical Field

[0001] The invention relates to the technical field of cable laying, in particular to a traction device and a traction method for laying cables in an electric power engineering. Background Art

[0002] In today's society, electricity has become a key energy source to promote social development, and the construction quality of power projects is directly related to the stability and reliability of power supply. Among the many links in power project construction, the importance of cable laying is self-evident. Cables of different specifications are widely used in various power systems, from small residential power networks to large industrial transmission lines, from dense urban distribution networks to power coverage projects in remote areas, all of which require the reasonable laying of cables. The cable laying traction device is the core equipment to ensure the smooth progress of cable laying work. Its performance directly affects the construction progress and quality of the entire power project.

[0003] Chinese patent (publication number CN116914634A), which discloses a power engineering cable laying traction device and a traction method thereof, relates to the field of cable laying technology, comprises a base plate, a pair of first vertical plates are fixedly arranged on the left side of the top surface of the base plate, a roller shaft is arranged between the top ends of the pair of first vertical plates, baffle plates are sleeved on the front and rear sides of the roller shaft, hollow sleeves are inserted into the top ends of the pair of first vertical plates, a fixing ring is sleeved between the opposite ends of the pair of hollow sleeves, a pair of fixing rings are connected to the roller shaft through a clamping mechanism, a pair of second vertical plates are fixedly arranged on the right side of the top surface of the base plate, a first clamping wheel, a second clamping wheel, and a U-shaped bracket are arranged between the opposite surfaces of the pair of second vertical plates, a third clamping wheel is arranged between the top ends of the U-shaped bracket, and the U-shaped bracket is connected to the base plate through a jacking mechanism. The invention can replace cables and cable drums of different sizes, and make corresponding adjustments according to cables of different sizes to ensure the effect of cable laying and traction, and further improve the construction efficiency.

[0004] According to the above scheme, when the above scheme is used, it is just to pull and traction, but when it is used, it is impossible to pull the cable and avoid excessive tension to damage the cable when the pulling force is too large. In order to solve the problem of excessive tension causing damage to the cable when the pulling force is too large, we propose a power engineering cable laying traction device and traction method thereof. Summary of the invention

[0005] The object of the present invention is to provide a power engineering cable laying traction device and a traction method thereof to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A traction device for laying cables in an electric power project, comprising a matching plate, the upper end of which is rotatably connected to a limit wire wheel, and a cavity is provided inside the limit wire wheel, a traction high-voltage pipe is fixedly connected to the outer wall of the limit wire wheel, and the traction high-voltage pipe is wound around the outer wall of the limit wire wheel, a traction shell is provided at the upper end of the matching plate, a mounting threaded pipe is further provided on the inner wall of the traction shell, and a limiting mechanism capable of limiting and fixing the cable is provided inside the mounting threaded pipe; The installation threaded tube and the traction high-pressure tube are fixedly connected by a trigger mechanism, and a driving motor is also fixedly installed on the upper end of the matching plate. The output end of the driving motor and the limiting wire wheel are fixedly connected by a disconnecting mechanism, and the triggering mechanism can trigger the disconnecting mechanism to disconnect the driving motor and the limiting wire wheel when the cable tension is too large.

[0007] As a further embodiment of the present invention, the limiting mechanism includes a rotating round block, which is threadedly connected to the outer wall of the mounting threaded tube. The left end of the rotating round block is rotatably connected to the limiting round block, and the end of the limiting round block away from the rotating round block is fixedly connected to a plurality of first abutment blocks, and the first abutment block is provided with a notch at one end close to the mounting threaded tube.

[0008] As a further feature of the present invention, the outer wall of the mounting threaded tube is also fixedly connected to a plurality of first elastic contraction rods, the top end of the inner wall of each of the first elastic contraction rods is fixedly connected to two second elastic contraction rods, and every two adjacent second elastic contraction rods are fixedly connected via abutment strips.

[0009] As a further feature of the present invention, the trigger mechanism includes a connecting circular plate, a magnetic ring is arranged inside the connecting circular plate, the connecting circular plate is fixedly connected to the outer wall of the mounting threaded tube, the outer wall of the connecting circular plate is also magnetically abutted against the inner wall of the traction shell, a plurality of corrugated folding tubes are fixedly connected between the connecting circular plate and the limiting circular block, a mounting circular box is arranged on the side of the connecting circular plate away from the corrugated folding tube, a matching telescopic tube is fixedly connected between the mounting circular box and the mounting threaded tube, the mounting circular box and the connecting circular plate are fixedly connected via a plurality of connecting telescopic tubes, and each of the connecting telescopic tubes is fixedly connected to an adjacent corrugated folding tube.

[0010] As a further feature of the present invention, a plurality of first connecting plates are arranged on the left side of the mounting round box, a second connecting plate is sleeved on the inner end of the first connecting plate, and a third connecting plate is sleeved inside the second connecting plate, and the first connecting plate, the second connecting plate and the third connecting plate are all connected to the mounting round box through a plurality of matching springs.

[0011] As a further feature of the present invention, the left end of the abutment bar is fixedly connected to a connecting bar, and the outer wall of the connecting bar is passed through the interior of the mounting threaded tube, and the right end of the connecting bar is fixedly connected to a second abutment block, which is located on the right side of two adjacent first connecting plates.

[0012] As a further feature of the present invention, each of the second abutment blocks is fixedly connected to a mating arm at one end away from the connecting strip, and the outer wall of the mating arm is slidably connected to the inner wall of the mounting circular box, the end of the mating arm away from the second abutment block is fixedly connected to a supporting telescopic arm, the end of the supporting telescopic arm away from the mating arm is fixedly connected to a first circular tube, and a plurality of second circular tubes are also fixedly connected to the left end of the inner wall of the mounting circular box, each of the second circular tubes is fixedly connected to an adjacent corrugated folding tube, the second circular tube is fixedly connected to the adjacent first circular tube via a shrinkage protection tube, and a shrinkage limit block with a reset function is fixedly connected to the center of the inner wall of the first circular tube.

[0013] As a further feature of the present invention, a pull rope is fixedly connected to the outer wall of the shrinkage limit block, and the outer wall of the pull rope is passed through the inside of the abutment tube. A vent is provided at one end of the second circular tube close to the first circular tube, and a third elastic shrinkage rod is fixedly connected to the center of the inner wall of the second circular tube. A blocking plate is fixedly connected to one end of the third elastic shrinkage rod close to the vent, and the outer wall of the blocking plate and the outer wall of the vent abut against each other. A connecting shrinkage tube is fixedly connected to the left and right ends of the mounting circular box, and the connecting shrinkage tube is fixedly connected to all the first circular tubes through a pipeline, and the connecting shrinkage tube is fixedly connected to the traction high-pressure tube through a guide block.

[0014] As a further feature of the present invention, the disconnection mechanism includes a cooperating telescopic arm, the left end of the cooperating telescopic arm is fixedly connected to the internal cavity of the limiting wire wheel, the end of the cooperating telescopic arm close to the driving motor and the output end of the driving motor are fixedly connected with abutment blocks, the opposite ends of the two abutment blocks are fixedly connected with a plurality of abutment tooth blocks, the two abutment blocks abut each other, the upper end of the cooperating plate is also fixedly connected with a cooperating contraction air pipe, the output end of the cooperating contraction air pipe is fixedly connected to the output end of the cooperating telescopic arm through a connecting rod, and the cooperating contraction air pipe is fixedly connected to the cavity inside the limiting wire wheel through a pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, during the process of pulling the cable, if the cable suddenly cannot be pulled, it is easy to cause damage to the internal structure of the cable due to excessive tension. In order to avoid this situation, the device adopts a unique design. When the cable cannot be pulled, the two abutting round blocks will automatically disengage from the abutting state. At this time, the limit wire wheel will stop the pulling operation of the traction high-voltage tube. At the same time, the connecting shrink tube will further extend the distance, thereby effectively avoiding damage caused by excessive pulling of the cable.

[0016] 2. When the present invention is used, the first connecting plate, the second connecting plate and the third connecting plate are respectively connected to the mounting round box through matching springs, and the spring coefficients of these springs are different. With the help of this feature, the device can accurately detect cables of three different specifications. During the cable pulling process, when there is a risk of excessive tension, matching springs with different spring coefficients can respond quickly and play a regulating role, effectively avoiding cable damage caused by excessive tension, and comprehensively ensuring the safety and stability of cable laying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a front view of a cable laying traction device and a traction method for electric power engineering.

[0018] Figure 2 Schematic diagram of the internal structure of the traction shell.

[0019] Figure 3 A schematic diagram of the internal structure of the telescopic tube.

[0020] Figure 4 It is a schematic diagram of the position structure of the first elastic contraction rod.

[0021] Figure 5 It is a schematic diagram of the internal structure of the first elastic contraction rod.

[0022] Figure 6 Schematic diagram of the position structure of the matching spring.

[0023] Figure 7 Schematic diagram of the position structure of the second abutment block.

[0024] Figure 8 Schematic diagram of the internal structure of the round box for installation.

[0025] Fig. 9 Schematic diagram of the internal structure of the second circular tube.

[0026] Fig.10 Schematic diagram of the position structure to cooperate with the contraction of the trachea.

[0027] Fig.11 It is a schematic diagram of the position structure of the abutment tooth block.

[0028] In the figure: 1, matching plate; 2, driving motor; 3, push handle; 4, limit wire wheel; 5, traction high-pressure pipe; 6, traction shell; 7, limit bending arc block; 8, movable wheel; 9, installation round box; 10, rotating round block; 11, rotating handle; 12, limit round block; 13, corrugated folding tube; 14, first abutment block; 15, installation threaded tube; 16. first elastic retractable rod; 17. abutment strip; 18. connection strip; 19. matching telescopic tube; 20. connecting telescopic tube; 21. connecting telescopic tube; 22. second elastic retractable rod; 23. second abutment block; 24. first connecting plate; 25. second connecting plate; 26. third connecting plate; 27. matching spring; 28. matching arm; 29. ​​first round tube; 30. supporting telescopic arm; 31. second round tube; 32. third elastic retractable rod; 33. blocking plate; 34. Retractable limit block; 35. Abutment tube; 36. Pull rope; 37. Abutment round block; 38. Cooperating retractable air pipe; 39. Abutment tooth block; 40. Connecting round plate; 41. Guide block; 42. Cooperating telescopic arm; 43. Retractable protection tube; 101. Limiting mechanism; 201. Trigger mechanism; 301. Disconnection mechanism. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1 to Figure 3 As shown, in an embodiment of the present invention, a traction device for laying cables in an electric power engineering project comprises a matching plate 1, the upper end of the matching plate 1 is rotatably connected to a limit wire wheel 4 through a rotating shaft, and a cavity is provided inside the limit wire wheel 4, a traction high-pressure pipe 5 is fixedly connected to the outer wall of the limit wire wheel 4, and the traction high-pressure pipe 5 is wound around the outer wall of the limit wire wheel 4, a traction shell 6 is provided at the upper end of the matching plate 1, and the traction shell 6 is made of stainless steel. The upper end of the matching plate 1 is also fixedly connected to a limit bending block 7, and the limit bending block 7 is in an arc shape. The bottom of the traction shell 6 is magnetically attracted to the inner wall of the limit bending block 7, and the inner wall of the traction shell 6 is also provided with an installation threaded tube 15, and a limiting mechanism 101 for limiting and fixing the cable is provided inside the installation threaded tube 15. It is capable of limiting the position of three types of cables with cross-sectional areas of 1.5 square millimeters, 4 square millimeters, and 16 square millimeters respectively. The threaded tube 15 is fixedly connected to the traction high-pressure tube 5 by a trigger mechanism 201. A driving motor 2 is also fixedly installed on the upper end of the matching plate 1. The output end of the driving motor 2 is fixedly connected to the limiting wire wheel 4 by a disconnecting mechanism 301. The triggering mechanism 201 can trigger the disconnecting mechanism 301 to disconnect the driving motor 2 from the limiting wire wheel 4 when the cable tension is too large. A push handle 3 is fixedly connected to the upper end of the matching plate 1. The push handle 3 facilitates the staff to push the matching plate 1. The bottom end of the matching plate 1 is also rotatably connected to a plurality of movable wheels 8 through a rotating shaft, and the movable wheels 8 can facilitate the movement of the matching plate 1.

[0031] Example 2: Please refer to Figure 2 to Figure 5 As shown, the limiting mechanism 101 includes a rotating round block 10, the outer wall of the rotating round block 10 is rotatably connected to a plurality of rotating handles 11 through a rotating shaft, a reset torsion spring is fixedly connected between each rotating handle 11 and the rotating round block 10, and the reset torsion spring can quickly reset the rotating handle 11, the rotating round block 10 is threadedly connected to the outer wall of the mounting threaded tube 15, the left and right ends of the rotating round block 10 are rotatably connected to the limiting round block 12 through the rotating shaft, and the end of the limiting round block 12 away from the rotating round block 10 is fixedly connected to a plurality of first abutment blocks 14, and the plurality of first abutment blocks 14 are circumferentially distributed on the left and right ends of the limiting round block 12, a notch is provided at one end of the first abutment block 14 close to the mounting threaded tube 15, and the outer wall of the mounting threaded tube 15 is also fixedly connected to a plurality of first abutment blocks 14. An elastic contraction rod 16, and the first elastic contraction rod 16 is triangular, and a plurality of first elastic contraction rods 16 are distributed in a circle on the outer wall of the mounting threaded tube 15. When the rotating round block 10 rotates on the outer wall of the mounting threaded tube 15, the rotating round block 10 will move on the outer wall of the mounting threaded tube 15. At this time, it is necessary to control the limiting round block 12 to remain stationary. The limiting round block 12 will drive the first abutting block 14 to move in the direction of the first elastic contraction rod 16. When the first abutting block 14 abuts against the outer wall of the first elastic contraction rod 16, the notch of the first abutting block 14 abuts against the hypotenuse of the outer wall of the first elastic contraction rod 16. The hypotenuse and the notch can effectively reduce the friction between the two, so that the first elastic contraction rod 16 can be better contracted; Two second elastic contraction rods 22 are fixedly connected to the top of the inner wall of each first elastic contraction rod 16, and the two second elastic contraction rods 22 are symmetrically distributed on the top of the inner wall of the first elastic contraction rod 16. Every two adjacent second elastic contraction rods 22 are fixedly connected by abutment strips 17, and a plurality of inverted teeth are fixedly connected to one end of each abutment strip 17 away from the second elastic contraction rod 22, and the plurality of inverted teeth are distributed in an array from left to right on the outer wall of the abutment strip 17. When the abutment strip 17 abuts against the outer wall of the cable, the inverted teeth can enhance the friction between the abutment strip 17 and the outer wall of the cable; See also Figures 1 to 9As shown, the trigger mechanism 201 includes a connecting circular plate 40, the traction housing 6 is magnetically attracted to the outer wall of the connecting circular plate 40, a magnetic ring is arranged inside the connecting circular plate 40, the connecting circular plate 40 is threadedly sleeved on the outer wall of the mounting threaded tube 15, and the outer wall of the connecting circular plate 40 is also magnetically abutted against the inner wall of the traction housing 6, and a plurality of corrugated folded tubes 13 are fixedly connected between the connecting circular plate 40 and the limiting circular block 12, and the corrugated folded tubes 13 are made of rubber material, which has good corrosion resistance and high temperature resistance and is durable. The plurality of corrugated folded tubes 13 are distributed in a circle between the connecting circular plate 40 and the limiting circular block 12, and the connecting circular plate 40 A mounting round box 9 is provided on one side away from the corrugated folded tube 13, a matching telescopic tube 19 is fixedly connected between the mounting round box 9 and the mounting threaded tube 15, the mounting round box 9 is fixedly connected to the connecting circular plate 40 through a plurality of connecting telescopic tubes 20, and the plurality of connecting telescopic tubes 20 are also distributed in a circle between the mounting round box 9 and the connecting circular plate 40, each connecting telescopic tube 20 is fixedly connected to an adjacent corrugated folded tube 13, a plurality of first connecting plates 24 are provided on the left side of the mounting round box 9, a second connecting plate 25 is sleeved on the inner end of the first connecting plate 24, and a third connecting plate 26 (such as Figure 6 , Figure 7 As shown), all the first connecting plates 24, the second connecting plates 25, and the third connecting plates 26 are formed by combining multiple arc plates to form a circle, and the first connecting plates 24, the second connecting plates 25, and the third connecting plates 26 are connected to the mounting round box 9 through multiple matching springs 27, and all the matching springs 27 are located inside the matching telescopic tube 19. Specifically, the matching springs 27 are arranged in a ring shape, and the elastic coefficients of the multiple matching springs 27 decrease from the periphery to the inside; The end of the abutment bar 17 close to the connecting circular plate 40 is fixedly connected to the connecting bar 18, and the connecting bar 18 is arranged inside the mounting threaded tube 15, and the end of the connecting bar 18 away from the abutment bar 17 is fixedly connected to the second abutment block 23, and the second abutment block 23 is located on the right side of the two adjacent first connecting plates 24, and each second abutment block 23 is fixedly connected to the end away from the connecting bar 18 with a matching arm 28, and the outer wall of the matching arm 28 is slidably connected to the inner wall of the mounting circular box 9, and the end of the matching arm 28 away from the second abutment block 23 is fixedly connected to the supporting telescopic The arm 30 supports the telescopic arm 30, and one end thereof away from the matching arm 28 is fixedly connected to the first circular tube 29, and the left end of the inner wall of the mounting circular box 9 is also fixedly connected to a plurality of second circular tubes 31, each of the second circular tubes 31 is fixedly connected to an adjacent corrugated folded tube 13, and the plurality of second circular tubes 31 are distributed in a circle at the left end of the inner wall of the mounting circular box 9, and the diameter of the cross section of the second circular tube 31 is smaller than the diameter of the cross section of the first circular tube 29, and the second circular tube 31 is fixedly connected to the adjacent first circular tube 29 through a shrink protection tube 43 and a spring 27; A contraction limit block 34 with a reset function is fixedly connected at the center of the inner wall of the first circular tube 29. The contraction limit block 34 is triangular in shape. Specifically, a sliding opening is provided on the outer wall of the abutment tube 35. The contraction limit block 34 is slidably connected to the inner wall of the sliding opening. The inner wall of the sliding opening is coated with lubricating oil. When the contraction limit block 34 is squeezed, the contraction limit block 34 moves along the inner wall of the sliding opening. The sliding opening can limit the contraction limit block 34 and also has a guiding function, thereby improving the stability of the contraction limit block 34 when it moves. The lubricating oil can also reduce the friction between the contraction limit block 34 and the sliding opening, thereby extending the service life of the contraction limit block 34 and the sliding opening. The outer wall of the contraction limit block 34 is also fixed A pull rope 36 is connected, and the outer wall of the pull rope 36 is passed through the inside of the abutting tube 35. An air vent is opened at one end of the second circular tube 31 close to the first circular tube 29. A third elastic shrink rod 32 is fixedly connected to the middle of the inner wall of the second circular tube 31. A blocking plate 33 is fixedly connected to one end of the third elastic shrink rod 32 close to the air vent, and the outer wall of the blocking plate 33 abuts against the outer wall of the air vent. The left and right ends of the installation round box 9 are fixedly connected with a connecting shrink tube 21, and the connecting shrink tube 21 is fixedly connected to all the first circular tubes 29 through pipelines. The connecting shrink tube 21 is fixedly connected to the traction high-pressure tube 5 through a guide block 41, and the guide block 41 is conical, which effectively reduces the resistance to the movement of the entire device; See also Figure 10-11 As shown, the disconnection mechanism 301 includes a cooperating telescopic arm 42, the right end of the cooperating telescopic arm 42 is fixedly connected to the cavity inside the limiting wire wheel 4, the end of the cooperating telescopic arm 42 close to the driving motor 2 and the output end of the driving motor 2 are fixedly connected with abutment blocks 37, the opposite ends of the two abutment blocks 37 are fixedly connected with a plurality of abutment tooth blocks 39, and the plurality of abutment tooth blocks 39 are distributed in a circle on the outer wall of the abutment blocks 37, the two abutment blocks 37 abut each other, and the upper end of the cooperating plate 1 is also fixedly connected with a cooperating contraction air pipe 38, the output end of the cooperating contraction air pipe 38 is fixedly connected to the output end of the cooperating telescopic arm 42 through a connecting rod, and the cooperating contraction air pipe 38 is fixedly connected to the cavity inside the limiting wire wheel 4 through a pipeline.

[0032] The working principle of the present invention is: When the present invention is used, it is only necessary to pick up the traction shell 6, and pull the traction high-pressure tube 5 through the traction shell 6. When the traction high-pressure tube 5 is pulled, the limiting wire wheel 4 will be driven to rotate. When the traction shell 6 is moved to the end of the cable, the end of the cable needs to be placed inside the installation threaded tube 15, and then the rotating round block 10 is rotated. The rotating round block 10 will drive the limiting round block 12 to move. When the limiting round block 12 moves, it will squeeze all the corrugated folded tubes 13, and the inside of the corrugated folded tubes 13 and the connecting telescopic The gas inside the tube 20 is compressed. At this time, the limiting round block 12 needs to be manually controlled to limit the position. The limiting round block 12, the first abutting block 14 and the rotating round block 10 will squeeze the first elastic contraction rod 16. When the first elastic contraction rod 16 contracts toward the inside of the installation threaded tube 15, the first elastic contraction rod 16 will squeeze the outer wall of the cable through the second elastic contraction rod 22 and the abutting strip 17. All the abutting strips 17 will abut and limit the outer wall of the cable, so that the end of the cable is effectively fixed and limited. The cables with three cross-sections of 1.5 square millimeters, 4 square millimeters, and 16 square millimeters can be limited and fixed. When the 1.5 square millimeter cable needs to be fixed, the abutment strip 17 will move to the left end of the adjacent third connecting plate 26 through the connecting strip 18 and the second abutment block 23. When the 4 square millimeter cable is fixed, the second abutment block 23 will move to the left side of the adjacent second connecting plate 25. When the 16 square millimeter cable is fixed, the second abutment block 23 will still be on the left side of the adjacent first connecting plate 24. At this time, the drive motor 2 is started, and the drive motor 2 rotates the cooperating telescopic arm 42 through the two abutment round blocks 37. The cooperating telescopic arm 42 will rotate the limiting wire wheel 4. When the limiting wire wheel 4 rotates, the traction high-pressure pipe 5 will be recovered and pulled. The traction high-pressure pipe 5 will pull the guide block 41, the connecting shrink tube 21 and the installation round box 9. The installation round box 9 is installed. The box 9 will move all the first connecting plates 24, the second connecting plates 25 and the third connecting plates 26 through the matching springs 27, and the second abutting blocks 23 will be clamped with two adjacent first connecting plates 24, the second connecting plates 25 or the third connecting plates 26. When the second abutting blocks 23 are stuck, the connecting strip 18 will be pulled, and the connecting strip 18 will move the first elastic shrinkage rod 16 through the abutment strip 17 and the second elastic shrinkage rod 22. The first elastic shrinkage rod 16 pulls the installation threaded tube 15 and the fixed cable. When the cable is pulled at this time, the guide block 41 can effectively push away the obstacle. At this time, when the cable is entangled and cannot be pulled or encounters an obstacle and is stuck, the corresponding matching spring 27 will be stretched. When the matching spring 27 is stretched to the limit, the first round tube 29 moves toward the direction of the second round tube 31, and the shrinkage protection tube 43 will shrink. The first circular tube 29 will drive the abutment tube 35 and the contraction limit block 34 to pass through the vent to abut and push the blocking plate 33. At this time, the contraction limit block 34 will be clamped with the inner wall of the vent, so that the blocking plate 33 is always separated from the abutment with the vent. At this time, the gas inside the corrugated folding tube 13 and the connecting telescopic tube 20 will enter the second circular tube 31, and the gas in the second circular tube 31 will enter the first circular tube 29 through the vent. The gas inside the first circular tube 29 will then enter the connected contraction tube 21. The connected contraction tube 21 will be instantly extended to reduce the tension on the cable, and the gas inside the connected contraction tube 21 will also enter the cavity inside the limiting wire wheel 4, and the gas inside the cavity will enter the inside of the matching contraction air tube 38, and the extension of the matching contraction air tube 38 will drive the matching telescopic The output end of the arm 42 contracts toward the limit wire wheel 4, and the telescopic arm 42 drives the corresponding abutting round block 37 to disengage from the abutting round blocks 37 abutting against each other. In the process of the telescopic arm 42 contracting toward the limit wire wheel 4, the two abutting round blocks 37 originally abutting against each other are separated. Once the two are separated, the limit wire wheel 4 immediately stops rotating. This action effectively avoids continuing to pull the cable by pulling the high-pressure tube 5 to prevent the cable from being damaged due to excessive tension. At the same time, the connecting shrink tube 21 will become longer, which increases the total length of the connecting shrink tube 21 and the pulling high-pressure tube 5. As the total length increases, the tension on the cable is released, thereby avoiding damage due to excessive tension when being pulled. Avoiding damage to the cable due to excessive tension when the cable is pulled. When it is needed to be used again, it is only necessary to pull the pull rope 36, the pull rope 36 will shrink toward the inside of the abutment tube 35, the shrink limit block 34 will be out of contact with the vent, and the third elastic shrink rod 32 will drive the blocking plate 33 to abut against the outer wall of the vent. At this time, the rotating round block 10 is rotated in the opposite direction, and the rotating round block 10 will drive the limiting round block 12 to move. When the rotating round block 10, the limiting round block 12 and the first abutment block 14 are out of contact with the first elastic shrink rod 16, all the corrugated folding tubes 13 will suck the second round tube 31 through the connecting telescopic tube 20. When the second round tube 31 is sucked, the blocking plate 33 will be out of contact with the vent, connecting the shrink tube 21 The cooperative contraction air tube 38 will also contract, and when the cooperative contraction air tube 38 is reset, the two abutment round blocks 37 will be driven to abut each other. At the same time, when the first elastic contraction rod 16 is reset, the second elastic contraction rod 22 and the abutment strip 17 will be reset, and the connecting strip 18 and the second abutment block 23 will also be reset. It is worth noting that at this time, the second abutment block 23 will not abut each other with the two adjacent first connecting plates 24, and when the rotating round block 10 drives the limiting round block 12 and the first abutment block 14 to move on the outer wall of the installation threaded tube 15, since the traction shell 6 is magnetically attracted to the outer wall of the connecting round plate 40, the traction shell 6 can be disassembled.

[0033] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable laying and pulling device for electric power engineering, comprising a matching plate (1), characterized in that: The upper end of the matching plate (1) is rotatably connected to a limit wire wheel (4), and a cavity is provided inside the limit wire wheel (4); the outer wall of the limit wire wheel (4) is fixedly connected to a traction high-pressure pipe (5), and the traction high-pressure pipe (5) is wound around the outer wall of the limit wire wheel (4); the upper end of the matching plate (1) is provided with a traction housing (6), and the inner wall of the traction housing (6) is also provided with a mounting threaded pipe (15); and a limiting mechanism (101) capable of limiting and fixing the cable is provided inside the mounting threaded pipe (15); The mounting threaded tube (15) and the traction high-pressure tube (5) are fixedly connected via a trigger mechanism (201); a drive motor (2) is also fixedly mounted on the upper end of the matching plate (1); an output end of the drive motor (2) and the limit wire wheel (4) are fixedly connected via a disconnection mechanism (301); and the trigger mechanism (201) can trigger the disconnection mechanism (301) to disconnect the drive motor (2) and the limit wire wheel (4) when the cable tension is too large.

2. The electric power engineering cable laying traction device according to claim 1, characterized in that: The limiting mechanism (101) comprises a rotating round block (10), wherein the rotating round block (10) is threadedly connected to the outer wall of the mounting threaded tube (15), the left and right ends of the rotating round block (10) are rotatably connected to the limiting round blocks (12), and one end of the limiting round block (12) away from the rotating round block (10) is fixedly connected to a plurality of first abutment blocks (14), and one end of the first abutment block (14) close to the mounting threaded tube (15) is provided with a notch.

3. The electric power engineering cable laying traction device according to claim 2, characterized in that: The outer wall of the mounting threaded tube (15) is also fixedly connected to a plurality of first elastic contraction rods (16), the top end of the inner wall of each of the first elastic contraction rods (16) is fixedly connected to two second elastic contraction rods (22), and every two adjacent second elastic contraction rods (22) are fixedly connected via abutment strips (17).

4. The electric power engineering cable laying traction device according to claim 1, characterized in that: The trigger mechanism (201) comprises a connecting circular plate (40), the traction housing (6) is magnetically attracted to the outer wall of the connecting circular plate (40), a magnetic ring is arranged inside the connecting circular plate (40), the connecting circular plate (40) is fixedly connected to the outer wall of the mounting threaded tube (15), the outer wall of the connecting circular plate (40) is also magnetically abutted against the inner wall of the traction housing (6), a plurality of corrugated folding tubes (13) are fixedly connected between the connecting circular plate (40) and the limiting circular block (12), a mounting circular box (9) is arranged on the side of the connecting circular plate (40) away from the corrugated folding tube (13), a matching telescopic tube (19) is fixedly connected between the mounting circular box (9) and the mounting threaded tube (15), the mounting circular box (9) and the connecting circular plate (40) are fixedly connected via a plurality of connecting telescopic tubes (20), and each of the connecting telescopic tubes (20) is fixedly connected to an adjacent corrugated folding tube (13).

5. The electric power engineering cable laying traction device according to claim 4, characterized in that: A plurality of first connecting plates (24) are arranged on the left side of the installation round box (9), a second connecting plate (25) is sleeved on the inner end of the first connecting plate (24), and a third connecting plate (26) is sleeved inside the second connecting plate (25), and the first connecting plate (24), the second connecting plate (25) and the third connecting plate (26) are all connected to the installation round box (9) via a plurality of matching springs (27).

6. The electric power engineering cable laying traction device according to claim 3, characterized in that: The left end of the abutment strip (17) is fixedly connected to a connecting strip (18), and the outer wall of the connecting strip (18) is inserted into the interior of the mounting threaded tube (15). The right end of the connecting strip (18) is fixedly connected to a second abutment block (23), and the second abutment block (23) is located on the right side of two adjacent first connecting plates (24).

7. The electric power engineering cable laying traction device according to claim 6, characterized in that: One end of each second abutting block (23) away from the connecting strip (18) is fixedly connected to a matching arm (28), and the outer wall of the matching arm (28) is slidably connected to the inner wall of the mounting circular box (9); one end of the matching arm (28) away from the second abutting block (23) is fixedly connected to a supporting telescopic arm (30); one end of the supporting telescopic arm (30) away from the matching arm (28) is fixedly connected to a first circular tube (29); and a plurality of second circular tubes (31) are fixedly connected to the left end of the inner wall of the mounting circular box (9); each of the second circular tubes (31) is fixedly connected to an adjacent corrugated folding tube (13); the second circular tube (31) is fixedly connected to the adjacent first circular tube (29) via a shrink protection tube (43); and a shrink limit block (34) having a reset function is fixedly connected to the center of the inner wall of the first circular tube (29).

8. The electric power engineering cable laying and traction device according to claim 7, characterized in that: The outer wall of the shrinkage limit block (34) is also fixedly connected to a drawstring (36), and the outer wall of the drawstring (36) is passed through the interior of the abutment tube (35). An air vent is provided at one end of the second circular tube (31) close to the first circular tube (29). A third elastic shrinkage rod (32) is also fixedly connected in the middle of the inner wall of the second circular tube (31). An end of the third elastic shrinkage rod (32) close to the air vent is fixedly connected to a blocking plate (33), and the outer wall of the blocking plate (33) abuts against the outer wall of the air vent. The left and right ends of the mounting circular box (9) are fixedly connected to a connecting shrinkage tube (21), and the connecting shrinkage tube (21) is fixedly connected to all the first circular tubes (29) via a pipeline. The connecting shrinkage tube (21) is fixedly connected to the traction high-pressure tube (5) via a guide block (41).

9. The electric power engineering cable laying and traction device according to claim 1, characterized in that: The disconnection mechanism (301) comprises a matching telescopic arm (42), the left end of the matching telescopic arm (42) being fixedly connected to the internal cavity of the limiting wire wheel (4), the end of the matching telescopic arm (42) close to the driving motor (2) and the output end of the driving motor (2) are both fixedly connected to a contact round block (37), the opposite ends of the two contact round blocks (37) are both fixedly connected to a plurality of contact tooth blocks (39), the two contact round blocks (37) are abutted against each other, the upper end of the matching plate (1) is also fixedly connected to a matching contraction air pipe (38), the output end of the matching contraction air pipe (38) is fixedly connected to the output end of the matching telescopic arm (42) via a connecting rod, and the matching contraction air pipe (38) is fixedly connected to the internal cavity of the limiting wire wheel (4) via a pipeline.

10. A method for laying and traction of electric power engineering cables, applied to a traction device for laying and traction of electric power engineering cables as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: It is necessary to pull the traction high-pressure tube (5). When the traction high-pressure tube (5) is stretched, the end of the cable is placed inside the installation threaded tube (15). At this time, the rotating round block (10) is rotated. The rotating round block (10) will rotate on the outer wall of the installation threaded tube (15). The rotating round block (10) will drive the limiting round block (12) and the first abutment block (14) to move. The limiting round block (12) will also squeeze all the corrugated folded tubes (13). The inside of the corrugated folded tubes (13) The gas will enter the interior of the connecting telescopic tube (20) and the second circular tube (31), the rotating round block (10), the limiting round block (12) and the first abutment block (14) will squeeze all the first elastic contraction rods (16), the first elastic contraction rods (16) will squeeze the abutment strips (17) through the second elastic contraction rods (22), the abutment strips (17) will abut and fix against the outer wall of the cable, and the abutment strips (17) will drive the second abutment block (23) to move through the connecting strips (18); S2: starting the driving motor (2), the driving motor (2) will rotate the matching telescopic arm (42) through the two abutting round blocks (37), the matching telescopic arm (42) will retract and pull the traction high-pressure tube (5), the traction high-pressure tube (5) will pull the installation round box (9) through the movable wheel (8) and the connecting shrink tube (21), the installation round box (9) will move the matching spring (27), at this time, the two first connecting plates (24) adjacent to the second abutting block (23), the second connecting plate (25) or the third connecting plate (26) will abut, when the cable is entangled or blocked by an obstruction, the corresponding matching spring (27) will be stretched, at this time the second round tube (31) will move towards the first round tube (29), the abutting tube (35) will push the blocking plate (33) open, and the shrinking limit block (34) will be clamped on the inner wall of the vent; S3: The gas inside the bellows folding tube (13) connecting the telescopic tube (20) and the second circular tube (31) will enter the cavity inside the first circular tube (29), the connecting shrinkage tube (21) and the limiting wire wheel (4), and the connecting shrinkage tube (21) will be extended to relieve the pulling force of the cable. At this time, the gas inside the cavity will also enter the inside of the matching shrinkage air tube (38), and the matching shrinkage air tube (38) will drive the pull rope (36) to shrink, and the pull rope (36) will drive the corresponding abutment round block (37) to break away from the abutment with another abutment round block (37).

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