Cable iron tower with cable anti-falling device

Abstract

The invention relates to a cable iron tower with a cable anti-falling device, the cable iron tower comprises an iron tower body and a paying-off tackle body, mounting rods are hinged to the two symmetrical sides of the paying-off tackle body, mounting wheels are arranged at the ends, away from the paying-off tackle body, of the mounting rods, and a locking device is arranged on the paying-off tackle body; the locking device comprises two bearing wheels, a positioning plate is arranged at the position, located above the bearing wheels, of the paying-off tackle body, two guide columns are connected to the positioning plate in a sliding mode, the bottoms of the guide columns are jointly and fixedly connected with a locking frame, and the positions, located between the positioning plate and the locking frame, of the guide columns are sleeved with locking springs. A locking frame is arranged on the paying-off tackle body, a pressing wheel is arranged in the middle of the locking frame, the pressing wheel is located between the two bearing wheels, the pressing wheel is located above the bearing wheels, and an unlocking mechanism is arranged on the paying-off tackle body and used for pushing the locking frame to fall down and clamping a cable on the bearing wheels. The device has the effects of carrying out emergency braking on the falling cable, preventing the cable from falling and reducing safety accidents.

Description

Technical Field

[0001] The present application relates to the technical field of power transmission equipment, and in particular to a cable tower with a cable anti-falling device. Background Art

[0002] High-voltage transmission towers are crucial infrastructure for power transmission, and the installation and securing of their cables are directly related to the safe and stable operation of the power grid. Currently, with the expansion of power grids and the increase in transmission voltage levels, cable securing technology faces higher requirements. Especially in high-altitude and windy areas, the swaying and vibration of cables caused by wind can easily cause the fixings to loosen or even fall off, leading to power outages.

[0003] During the cable installation process, the most important step in the construction of overhead lines is to install the transmission wires weighing tons on the towers to ensure the safety and efficiency of power transmission. The wire-laying pulley is used in the wire-laying operation of the power tower. The wire-laying pulley is a pulley used to lay out the corresponding wire when the wire is stretched. The wire-laying pulley can be directly installed on the tower to connect the cable to the tower.

[0004] When using a wire-laying pulley for overhead line-laying operations, the cable may accidentally fall off the pulley and fall rapidly. Once one end of the traction cable accidentally falls off, the entire cable will fall rapidly under the action of gravity, leading to serious safety accidents. The existing ordinary wire-laying pulleys do not have the function of emergency limit braking, and are unable to slow down or lock the falling cable in time. The cable may fall suddenly and hit work equipment or people, which reduces the safety of users when using the wire-laying pulley to install cables and is prone to safety accidents.

[0005] Therefore, we propose a method for automatically performing emergency braking on the rapidly falling cable on the pay-out pulley, which is a problem to be solved urgently. Summary of the Invention

[0006] In order to perform emergency braking on falling cables, prevent the cables from falling, and reduce safety accidents, the present application provides a cable tower with a cable anti-falling device.

[0007] The present application provides a cable pylon with a cable anti-falling device adopts the following technical solution: The top of the guide column is fixedly connected with the connecting plate, and the bottom of the guide column is fixedly connected with the locking frame, and the guide column is located between the positioning plate and the locking frame and is provided with a locking spring; the middle part of the locking frame is provided with a pressure wheel, the pressure wheel is located between the two bearing wheels, and the pressure wheel is located above the bearing wheel, and an unlocking mechanism is provided on the line-paying pulley body. When the cable slides down rapidly, the unlocking mechanism pushes the locking frame to fall and clamps the cable on the bearing wheel.

[0008] By adopting the above technical solution, when the user is in use, when the cable accidentally falls off, the unlocking component controls the locking frame to fall, causing the pressure roller at the bottom of the locking frame to fall, and the pressure roller presses the cable tightly onto the load-bearing wheel. The pressure roller and the load-bearing wheel clamp the cable, reducing the cable from falling off the cable-releasing pulley body and reducing safety accidents.

[0009] The cam is fixedly provided with a toothed connecting strip which is fixed on the toothed connecting strip and is adapted to be rotated by the toothed connecting strip at two ends.

[0010] By adopting the above technical solution, when the user is in use, when the cable suddenly breaks or the end suddenly falls, the cable falls under the action of gravity, and the linkage component pulls the connecting rod to rotate, which can drive the driving disk to rotate, and the rotation of the driving disk can drive the block to slide into the connecting cavity, and the pressure of the block on the limit block disappears, and the limit block drives the positioning plate to fall downward, causing the pressure roller and the locking rod to slide downward, and the pressure wheel and the locking rod press the cable tightly on the load-bearing wheel, thereby preventing the entire cable from falling from the line-paying pulley body, reducing the occurrence of safety accidents.

[0011] Optionally, the linkage assembly includes a positioning rod arranged on the mounting rod, a waist-shaped groove is provided on the positioning rod, a pull rod is provided on the line-releasing pulley body, the pull rod is vertically arranged, the bottom of the pull rod is fixedly connected to a sliding column, the sliding column is slidably connected in the waist-shaped groove, and the top of the pull rod is fixedly connected to a protrusion, which is used to hook the end of the toggle rod.

[0012] The limit block drives the positioning plate to fall downward, causing the pressure roller and the locking rod to slide downward, and the pressure wheel and the locking rod press the cable tightly on the load-bearing wheel, thereby preventing the entire cable from falling from the line-laying pulley body, reducing the occurrence of safety accidents.

[0013] Optionally, locking rods are provided near both ends of the locking frame, and the locking rods are used to press the cables tightly against both sides of the load-bearing wheel.

[0014] By adopting the above technical solution, when the user uses it, if the cable suddenly falls, the locking frame will automatically fall down, the pressure wheel will press the cable onto the load-bearing wheel, and at the same time the locking rod will press the cable onto both sides of the load-bearing wheel, performing double compression on the cable, which makes the locking more stable.

[0015] Optionally, sliders are fixedly connected to both ends of the pressure wheel, and a locking groove is provided at the position of the slider corresponding to the line-releasing pulley body. The locking groove is vertically arranged, and the slider is slidably connected in the locking groove. A tension spring is fixedly connected to the top of the slider, and the end of the tension spring is fixedly connected to the top wall of the locking groove.

[0016] By adopting the above technical solution, when the user uses it, when the pressure roller falls downward, the tension spring stretches, and the tension of the tension spring facilitates the reset of the slider, and the slider slides vertically in the locking groove, and the pressure roller is more stable during the vertical sliding process.

[0017] Optionally, an emergency deceleration device is provided in the mounting wheel; one side of the mounting wheel is connected to a positioning plate, the positioning plate bolt is fixedly connected to the mounting rod, the middle of the positioning plate is fixedly connected to a rotating shaft, and the mounting wheel is rotatably connected to the rotating shaft; the emergency deceleration device includes two brake discs rotatably connected to the rotating shaft, the brake discs are respectively located at positions near both ends of the rotating shaft, and three guide grooves are opened on the brake disc, and the guide grooves are evenly distributed at the eccentric position of the brake disc; a fixed disc is fixedly connected to the outside of the brake disc, the fixed disc is rotatably connected to the rotating shaft, and the fixed disc away from the side of the positioning plate is fixedly connected to the mounting wheel and rotates with the mounting wheel, and three groups of guide rings are symmetrically fixedly connected to the opposite side of the fixed disc, and a brake shaft is slidingly connected in the guide ring, and the roller shafts at both ends of the brake shaft are inserted in the guide ring and can slide in the guide ring, and the end of the roller shaft of the brake shaft is fixedly connected to a return spring, and is slidingly connected in the guide groove to a sliding shaft, and the end of the return spring away from the roller shaft is fixedly connected to the sliding shaft; the inner wall of the mounting wheel is provided with a deceleration component for decelerating the brake shaft.

[0018] By adopting the above technical solution, when the user uses it, when the cable rotates at a constant speed in the cable trough, the brake disc and the fixed disc rotate at a constant speed following the mounting wheel. When one end of the cable accidentally falls off, the cable will cause the entire cable to fall rapidly under the action of gravity. The rapidly falling cable drives the mounting wheel to rotate faster, and the mounting wheel drives the fixed disc to rotate faster. The brake shaft is thrown outward under the action of centrifugal force, and the roller of the brake shaft slides in the guide ring in the direction away from the axis of the rotating shaft, stretching the reset spring, causing a collision between the brake shaft and the shock absorber assembly, and the deceleration assembly reduces the rotation speed of the brake shaft, thereby reducing the rotation speed of the mounting wheel and reducing the speed of the cable falling.

[0019] Optionally, the deceleration assembly includes two positioning rings arranged in the mounting wheel, one of the positioning rings is fixedly connected to the positioning plate, and a shock-absorbing column is connected between the two positioning rings. The shock-absorbing column is made of rubber material and is evenly spaced along the circumference of the positioning ring.

[0020] By adopting the above technical solution, when the user uses it, if one end of the cable accidentally falls off, the brake shaft is thrown outward under the action of centrifugal force, and the roller of the brake shaft slides in the guide ring in the direction away from the axis of the rotating shaft, stretching the reset spring, and causing a collision between the brake shaft and the shock-absorbing column. The successive collisions between the shock-absorbing column and the brake shaft can reduce the rotation speed of the brake shaft, thereby reducing the rotation speed of the mounting wheel and reducing the speed at which the cable falls.

[0021] Optionally, a fixing ring is provided inside the mounting wheel, which is fixedly connected to the positioning plate. The positioning ring is located on the inner side of the fixing ring. A plurality of reinforcing columns are fixedly connected to the inner side of the fixing ring near the positioning ring. The reinforcing columns are evenly spaced along the circumference of the inner wall of the fixing ring, and the reinforcing columns are made of rubber material.

[0022] By adopting the above technical solution, when the user uses it, the reinforcing column is made of rubber material, and the reinforcing column is used to buffer and reset the shock-absorbing column. Through the cooperation of the reinforcing column and the buffer column, the resistance to the brake shaft can be increased and the rotation speed of the mounting wheel can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of the defensive line tackle; Figure 3 It is a cross-sectional view of the mounting wheel; Figure 4 This is a diagram of the internal structure of the installation wheel; Figure 5 yes Figure 4 A magnified view of part A; Figure 6 yes Figure 4 A magnified view of part B; Figure 7 This is a structural diagram designed to highlight the main body of the pay-out block and the locking device; Figure 8 This is a structural diagram designed to highlight the pull rod and the toggle rod; Figure 9 This is a structural diagram to highlight the slider, locking groove and tension spring; Figure 10 This is an exploded view to highlight the positional relationship between the block, limit block, connecting rod and toggle lever.

[0024] Explanation of reference numerals: 1. tower body; 2. line-laying pulley body; 21. mounting rod; 211. positioning rod; 212. waist-shaped groove; 22. mounting wheel; 221. positioning plate; 222. rotating shaft; 23. buffer spring; 3. emergency deceleration device; 31. brake disc; 311. guide groove; 312. sliding shaft; 32. fixed disc; 321. guide ring; 322. return spring; 33. brake shaft; 34. fixed ring; 341. reinforcement column; 35. positioning ring; 351. shock-absorbing column; 352. slide groove; 353. plug-in column; 35 4. Limiting ring; 4. Locking device; 41. Load-bearing wheel; 42. Positioning plate; 421. Guide column; 422. Connecting plate; 423. Locking frame; 424. Locking spring; 43. Pressure wheel; 431. Sliding block; 432. Locking groove; 433. Tension spring; 44. Locking rod; 45. Accommodating chamber; 451. Drive disk; 452. Toggle rod; 453. Connecting rod; 454. Stopper; 455. Connecting chamber; 456. Compression spring; 46. Accommodating groove; 461. Limiting block; 47. Pull rod; 471. Sliding column; 472. Protrusion. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-10 This application is described in further detail.

[0026] The present application embodiment discloses a cable iron tower with a cable anti-falling device, referring to Figure 1 and Figure 2 , including an iron tower body 1, a wire-laying pulley body 2 is connected to the iron tower body 1, the top of the wire-laying pulley body 2 is connected and fixed to the iron tower body 1 by bolts, and a locking device 4 is provided on the wire-laying pulley body. The locking device 4 is used to clamp and fix the cable to prevent the cable from suddenly falling from the wire-laying pulley body 2.

[0027] Reference Figure 2 and Figure 3 The payout pulley body 2 is hinged with mounting rods 21 on both sides. The ends of the mounting rods 21 facing away from the payout pulley body 2 are connected to mounting wheels 22. The mounting wheels 22 are provided with multiple cable slots for the cables to pass through, and an emergency deceleration device 3 is housed within the mounting wheels 22. A buffer spring 23 is hinged to the sidewall of the payout pulley body 2. The end of the buffer spring 23 facing away from the payout pulley is hinged to the mounting rod 21. The buffer spring 23 is used to reset the mounting rod 21, and the tension of the buffer spring 23 increases the load-bearing capacity of the mounting rod 21. A positioning disc 221 is connected to one side of the mounting wheel 22. The positioning disc 221 is bolted to the mounting rod 21. A rotating shaft 222 is fixedly connected to the middle of the positioning disc 221, and the mounting wheel 22 is rotatably connected to the rotating shaft 222.

[0028] Reference Figure 4 and Figure 5 The cam 322 is fixed on the cam 324 and the cam 325 is fixed on the cam 326 to the cam 328. The cam 322 is fixed on the cam 326 and the cam 325 is fixed on the cam 328.

[0029] Reference Figure 4 and Figure 6Two fixing rings 34 and two positioning rings 35 are provided in the mounting wheel 22. The diameter of the fixing ring 34 is larger than that of the positioning ring 35. The fixing ring 34 is fixedly connected to the positioning plate 221. The positioning ring 35 is located on the inner side of the fixing ring 34. One of the positioning rings 35 is fixedly connected to the positioning plate 221. A shock-absorbing column 351 is connected between the two positioning rings 35. The shock-absorbing column 351 is made of rubber material. The shock-absorbing column 351 is evenly spaced along the circumference of the positioning ring 35. The positioning ring 35 is opened. A sliding groove 352 is provided, and plugging posts 353 are fixedly connected at both ends of the shock-absorbing post 351. The plugging posts 353 are inserted into the sliding groove 352 and can rotate within the sliding groove 352. A limit ring 354 is fixedly connected to the outside of the plugging post 353, located on the outside of the plugging post 353, away from the axis of the rotating shaft 222. The limit ring 354 is used to limit the plugging post 353, reduce the displacement of the shock-absorbing post 351 after being struck by the brake shaft 33, and increase the resistance of the shock-absorbing post 351 to the brake shaft 33. A plurality of reinforcing posts 341 are fixedly connected to the inner side of the fixing ring 34 near the positioning ring 35. The reinforcing posts 341 are evenly spaced along the inner wall of the fixing ring 34. The reinforcing posts 341 are made of rubber material and are used to cushion and reset the shock-absorbing post 351. The cooperation between the reinforcing posts 341 and the buffer posts increases the resistance to the brake shaft 33 and reduces the rotation speed of the mounting wheel 22.

[0030] When the cable rotates at a constant speed in the cable trough, the brake disc 31 and the fixed disc 32 rotate at a constant speed following the mounting wheel 22. When one end of the cable accidentally falls off, the cable will cause the entire cable to fall rapidly under the action of gravity. The rapidly falling cable drives the mounting wheel 22 to rotate faster, and the mounting wheel 22 drives the fixed disc 32 to rotate faster. The brake shaft 33 is thrown out under the action of centrifugal force, and the roller of the brake shaft 33 slides in the guide ring 321 in the direction away from the axis of the rotating shaft 222, stretching the reset spring 322, and a collision occurs between the brake shaft 33 and the shock absorber column 351. The successive collisions between the shock absorber column 351 and the brake shaft 33 can reduce the rotation speed of the brake shaft 33, thereby reducing the rotation speed of the mounting wheel 22 and reducing the speed at which the cable falls.

[0031] Reference Figure 7The locking device 4 includes two load-bearing wheels 41 rotatably connected to the wire-laying pulley body 2. The load-bearing wheels 41 are provided with a wire groove for the cable to pass through. The wire-laying pulley body 2 is provided with a positioning plate 42 above the load-bearing wheels 41. Two guide columns 421 are slidably connected to the positioning plate 42. The tops of the guide columns 421 are fixedly connected to the connecting plate 422. The bottoms of the guide columns 421 are fixedly connected to the locking frame 423. The guide columns 421 are located between the positioning plate 42 and the locking frame 423. A locking spring 424 is provided; a pressure wheel 43 is provided in the middle of the locking frame 423, the pressure wheel 43 is located between the two load-bearing wheels 41, and the pressure wheel 43 is located above the load-bearing wheels 41, and a gap is formed between the pressure wheel 43 and the load-bearing wheels 41 for the cable to pass through, and the outer wall of the pressure wheel 43 is provided with anti-slip grooves, which are used to increase the friction between the pressure wheel 43 and the cable; locking rods 44 are provided near the two ends of the locking frame 423, and the locking rods 44 are used to press the cable tightly to both sides of the load-bearing wheels 41.

[0032] Reference Figure 8 The two ends of the pressure roller 43 are fixedly connected with sliders 431, and a locking groove 432 is opened at the position of the line-releasing pulley body 2 corresponding to the slider 431. The locking groove 432 is vertically arranged, and the slider 431 is slidably connected in the locking groove 432. The top of the slider 431 is fixedly connected with a tension spring 433, and the end of the tension spring 433 is fixedly connected to the top wall of the locking groove 432. The tension spring 433 is used to reset the pressure roller. A accommodating cavity 45 is provided on the line-paying pulley body 2, and the accommodating cavity 45 is arranged in a diamond shape. A driving disk 451 is rotatably connected in the accommodating cavity 45, and a toggle rod 452 is fixedly connected to the driving disk 451, and the driving disk 451 is extended from both ends of the toggle rod 452; a positioning rod 211 is fixedly connected to the mounting rod 21, and a waist-shaped groove 212 is provided on the positioning rod 21; a pull rod 47 is provided on the line-paying pulley body 2, and the pull rod 47 is arranged vertically. A sliding column 471 is fixedly connected to the bottom of the pull rod 47, and the sliding column 471 is slidably connected in the waist-shaped groove 212, and a protrusion 472 is fixedly connected to the top of the pull rod 47, and the protrusion 472 is used to hook the end of the toggle rod 452. The pull rod 47 pulls the toggle rod 452 to move, which can drive the driving disk 451 to rotate.

[0033] Reference Figure 9 and Figure 10, two connecting rods 453 are hinged on both sides of the driving disk 451 symmetrically, and the connecting rod 453 is arranged parallel to the toggle rod 452. A stopper 454 is hinged on one end of the connecting rod 453 away from the toggle rod 452, and a connecting cavity 455 is provided at the position corresponding to the stopper 454 of the line-releasing pulley body 2. A receiving groove 46 is provided on the line-releasing pulley body 2, and the receiving groove 46 is vertically arranged. The receiving groove 46 is connected to the connecting cavity 455, and one end of the stopper 454 passes through the connecting cavity 455 and extends into the receiving groove 46. The stopper 454 extends to the top of one end of the receiving cavity 45. The inclined surface, the end of the stop block 454 away from the accommodating groove 46 is fixedly connected with a compression spring 456, the compression spring 456 is arranged horizontally, and the compression spring 456 is fixedly connected to the inner wall of the connecting cavity 455. Two limit blocks 461 are fixedly connected to the positioning plate 42, the limit blocks 461 extend into the accommodating groove 46, and the bottom of the limit blocks 461 is provided with an inclined surface; under normal working conditions, the limit block 461 is located above the stop block 454, and the stop block 454 is used to support and limit the limit block 461 to prevent the positioning plate 42, the pressure wheel 43 and the locking rod 44 from falling.

[0034] When the cable breaks suddenly or the end falls suddenly, the cable falls under the action of gravity, causing the load-bearing of the mounting wheel 22 on one side to increase, and the mounting wheel 22 drives the mounting rod 21 to flip downward around the hinge point. The mounting rod 21 pushes the sliding column 471 to slide upward through the positioning rod 211, and the sliding column 471 pushes the pull rod 47 to slide upward. The pressure of the pull rod 47 on the connecting rod 453 disappears, and the load-bearing of the mounting wheel 22 on the other side is reduced. The mounting wheel 22 drives the mounting rod 21 to flip downward around the hinge point, and the mounting rod 21 pushes the sliding column 471 through the positioning rod 211. 1 slides upward, the sliding column 471 drives the pull rod 47 to slide downward, and the pull rod 47 pulls the connecting rod 453 downward, which can drive the driving disk 451 to rotate. The rotation of the driving disk 451 can drive the stopper 454 to slide into the connecting cavity 455, and the pressure of the stopper 454 on the limit block 461 disappears. The limit block 461 drives the positioning plate 42 to fall downward, causing the pressure roller and the locking rod 44 to slide downward. The pressure roller 43 and the locking rod 44 press the cable onto the bearing wheel 41, thereby preventing the entire cable from falling from the wire-paying pulley body 2 and reducing the occurrence of safety accidents.

[0035] The implementation principle of a cable tower with a cable anti-falling device in an embodiment of the present application is as follows: the cable passes through the mounting wheel 22 on one side of the wire-paying pulley body 2, the two load-bearing wheels 41 on the wire-paying pulley body 2 and the mounting wheel 22 on the other side of the wire-paying pulley body 2 in sequence; when one end of the cable falls off accidentally, the cable will cause the entire cable to fall rapidly under the action of gravity, and the rapidly falling cable drives the mounting wheel 22 to rotate faster, and the mounting wheel 22 drives the fixed plate 32 to rotate faster, and the brake shaft 33 is thrown out under the action of centrifugal force, and the roller shaft of the brake shaft 33 slides in the guide ring 321 in the direction away from the axis of the rotating shaft 222, stretching the reset spring 322, and a collision occurs between the brake shaft 33 and the shock-absorbing column 351. The sequential collision between the shock-absorbing column 351 and the brake shaft 33 can reduce the rotation speed of the brake shaft 33, thereby reducing the rotation speed of the mounting wheel 22 and reducing the speed of the cable falling.

[0036] At the same time, the cable falls under the action of gravity, causing the load-bearing of the mounting wheel 22 on one side to increase, and the mounting wheel 22 drives the mounting rod 21 to flip downward around the hinge point. The mounting rod 21 pushes the sliding column 471 to slide upward through the positioning rod 211, and the sliding column 471 pushes the pull rod 47 to slide upward. The pressure of the pull rod 47 on the connecting rod 453 disappears, and the load-bearing of the mounting wheel 22 on the other side is reduced. The mounting wheel 22 drives the mounting rod 21 to flip downward around the hinge point, and the mounting rod 21 pushes the sliding column 471 to slide upward through the positioning rod 211. The sliding column 471 drives the pull rod 47 to slide downward, and the pull rod 47 pulls the connecting rod 453 downward, which can drive the driving disk 451 to rotate. The rotation of the driving disk 451 can drive the stop block 454 to slide into the connecting cavity 455. The pressure of the stop block 454 on the limit block 461 disappears, and the limit block 461 drives the positioning plate 42 to fall downward, causing the pressure roller and the locking rod 44 to slide downward. The pressure wheel 43 and the locking rod 44 press the cable tightly onto the load-bearing wheel 41, thereby preventing the entire cable from falling from the line-releasing pulley body 2, reducing the occurrence of safety accidents.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cable tower with a cable anti-falling device, characterized by: The utility model comprises an iron tower body (1) and a wire-laying pulley body (2) detachably connected to the iron tower body (1), wherein mounting rods (21) are hingedly connected to the symmetrical two sides of the wire-laying pulley body (2), and mounting wheels (22) are provided at the ends of the mounting rods (21) away from the wire-laying pulley body (2), and a locking device is provided on the wire-laying pulley body (2); The locking device comprises two load-bearing wheels (41) rotatably connected to the line-releasing pulley body (2); a positioning plate (42) is provided on the line-releasing pulley body (2) above the load-bearing wheels (41); two guide columns (421) are slidably connected to the positioning plate (42); the tops of the guide columns (421) are fixedly connected to a connecting plate (422); the bottoms of the guide columns (421) are fixedly connected to a locking frame (423); the guide columns (421) are located between the positioning plate (42) and the locking frame (423) and are sleeved with a locking spring (424); A pressure wheel (43) is provided in the middle of the locking frame (423), and the pressure wheel (43) is located between the two load-bearing wheels (41). The pressure wheel (43) is located above the load-bearing wheels (41). An unlocking mechanism is provided on the cable-releasing pulley body (2). When the cable rapidly slides down, the unlocking mechanism pushes the locking frame (423) down and clamps the cable on the load-bearing wheels (41).

2. A cable pylon with a cable anti-falling device according to claim 1, characterized in that: The unlocking mechanism comprises an accommodating cavity (45) provided on the line-releasing pulley body (2), a driving disc (451) being rotatably connected in the accommodating cavity (45), a toggle rod (452) being fixedly connected to the driving disc (451), and two ends of the toggle rod (452) extending out of the driving disc (451); Two connecting rods (453) are hinged on both sides of the driving disc (451), which are symmetrical. The connecting rods (453) are arranged in parallel with the toggle rod (452). A linkage assembly is connected between the toggle rod (452) and the mounting rod (21) to push the toggle rod (452) to rotate when the cable suddenly falls. The end of the connecting rod (453) away from the toggle rod (452) is hinged with a stopper (454), and the position of the line-releasing pulley body (2) corresponding to the stopper (454) is provided with a connecting cavity (455). The line-releasing pulley body (2) is provided with a receiving groove (46), which is vertically arranged. The receiving groove (46) is communicated with the connecting cavity (455), and one end of the stopper (454) passes through the connecting cavity (455) and extends into the receiving groove (46). The stopper (454) ) extends to the top of one end of the accommodating chamber (45) and is provided with an inclined surface, and the end of the stopper (454) away from the accommodating groove (46) is fixedly connected to a compression spring (456), the compression spring (456) is horizontally arranged, and the compression spring (456) is fixedly connected to the inner wall of the connecting chamber (455), and two limiting blocks (461) are fixedly connected to the positioning plate (42), the limiting blocks (461) extend into the accommodating groove (46), and the bottom of the limiting blocks (461) is provided with an inclined surface.

3. The cable tower with a cable anti-falling device according to claim 2, characterized in that: The linkage assembly includes a positioning rod (211) arranged on the installation rod (21), a waist-shaped groove (212) is provided on the positioning rod (211), a pull rod (47) is provided on the line-releasing pulley body (2), the pull rod (47) is vertically arranged, the bottom of the pull rod (47) is fixedly connected to a sliding column (471), the sliding column (471) is slidably connected in the waist-shaped groove (212), and the top of the pull rod (47) is fixedly connected to a protrusion (472), and the protrusion (472) is used to hook the end of the toggle rod (452).

4. The cable tower with a cable anti-falling device according to claim 1, characterized in that: The locking frame (423) is provided with locking rods (44) near both ends, and the locking rods (44) are used to press the cable tightly against both sides of the load-bearing wheel (41).

5. The cable tower with a cable anti-falling device according to claim 1, characterized in that: The two ends of the pressure wheel (43) are fixedly connected with sliders (431), and a locking groove (432) is provided at a position of the line-releasing pulley body (2) corresponding to the slider (431). The locking groove (432) is vertically arranged, and the slider (431) is slidably connected in the locking groove (432). The top of the slider (431) is fixedly connected with a tension spring (433), and the end of the tension spring (433) is fixedly connected to the top wall of the locking groove (432).

6. The cable tower with a cable anti-falling device according to claim 1, characterized in that: An emergency deceleration device (3) is provided in the mounting wheel (22); One side of the mounting wheel (22) is connected to a positioning plate (221), the positioning plate (221) is fixedly connected to the mounting rod (21) by bolts, the middle of the positioning plate (221) is fixedly connected to a rotating shaft (222), and the mounting wheel (22) is rotatably connected to the rotating shaft (222); The emergency deceleration device (3) comprises two brake discs (31) rotatably connected to a rotating shaft (222), the brake discs (31) being respectively located at positions close to both ends of the rotating shaft (222), and three guide grooves (311) being provided on the brake disc (31), and the guide grooves (311) being evenly distributed at eccentric positions of the brake disc (31); a fixed disc (32) being fixedly connected to the outside of the brake disc (31), the fixed disc (32) being rotatably connected to the rotating shaft (222), and the fixed disc (32) on the side away from the positioning disc (221) being fixedly connected to the mounting wheel (22) The fixing plate (32) is symmetrically fixedly connected to one side of the fixing plate (32) and rotates along with the mounting wheel (22). Three sets of guide rings (321) are symmetrically fixedly connected to one side of the fixing plate (32). A brake shaft (33) is slidably connected in the guide ring (321). Roller shafts at both ends of the brake shaft (33) are inserted into the guide ring (321) and can slide in the guide ring (321). A return spring (322) is fixedly connected to the end of the roller shaft of the brake shaft (33). A sliding shaft (312) is slidably connected in the guide groove (311). One end of the return spring (322) away from the roller shaft is fixedly connected to the sliding shaft (312). The inner wall of the mounting wheel (22) is provided with a deceleration component for decelerating the brake shaft (33).

7. The cable tower with a cable anti-falling device according to claim 6, characterized in that: The deceleration assembly comprises two positioning rings (35) arranged in the mounting wheel (22), wherein one positioning ring (35) is fixedly connected to the positioning plate (221), and a shock-absorbing column (351) is connected between the two positioning rings (35). The shock-absorbing column (351) is made of rubber material and is distributed at equal intervals along the circumference of the positioning ring (35).

8. The cable tower with a cable anti-falling device according to claim 7, characterized in that: A fixing ring (34) is provided inside the mounting wheel (22), the fixing ring (34) is fixedly connected to the positioning plate (221), the positioning ring (35) is located on the inner side of the fixing ring (34), and a plurality of reinforcing columns (341) are fixedly connected to the inner side of the fixing ring (34) near the positioning ring (35), the reinforcing columns (341) are distributed at equal intervals along the circumference of the inner wall of the fixing ring (34), and the reinforcing columns (341) are made of rubber material.

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