A foot-operated pole climbing aid

Abstract

This invention discloses a foot-operated pole climbing auxiliary device, relating to the field of pole technology. It aims to solve the problems of poor fit and easy slippage of foot-operated pole climbers on rectangular poles. The invention includes a first pole climbing frame, on which a second pole climbing frame is movably mounted via a movable plate. A foot-operated mechanism is installed on one side of the first pole climbing frame. The foot-operated mechanism includes a rotating rod and a slidable connecting sleeve sleeved on the surface of the rotating rod. The surface of the rotating rod has a straight groove that restricts the sliding position of the connecting sleeve sleeve and a semi-circular groove communicating with the straight groove. A transmission mechanism is installed on the side of the rotating rod that is inserted into the first pole climbing frame. The transmission mechanism includes a pushing component disposed inside the first pole climbing frame, and a push-out mechanism is installed on one side of the pushing component. A contact block is installed on one side of the push-out mechanism. A tensioning mechanism that moves the second pole climbing frame is installed at the bottom of the first pole climbing frame, shortening the time for power personnel to descend the pole and eliminating the need for repeated movement, reducing the occurrence of accidents and ensuring life safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric poles, in particular to a foot-operated electric pole climbing auxiliary device. BACKGROUND

[0002] In cable erection, an electric pole needs to be used, and the cable is generally erected and fixed at the top of the electric pole. Since the electric pole is high, the worker needs to climb to the high place of the electric pole when erecting the cable.

[0003] The electrician generally uses a foot-clamp pole climber when climbing the electric pole. The foot-clamp pole climber is an arc-shaped iron tool worn on the shoe for climbing the electric pole. It uses the lever action and the body weight to tightly clamp the other side on the electric pole, so that a large friction force is generated, thereby making it easy to climb. When lifting the foot, the foot-clamp automatically releases due to the reduction of the weight on the foot.

[0004] However, when the foot-clamp pole climber is used on a rectangular electric pole, the fit degree may be poor. Since the square electric pole has edges and corners, the foot-clamp pole climber may not tightly fit the pole body. In the process of using the foot-clamp pole climber to climb down the pole, the worker needs to move the two feet crosswise to realize it, which is easy to slide in the process of use, making the climbing process more difficult, increasing the maintenance time, and increasing the probability of safety accidents in the process of descending. SUMMARY

[0005] The purpose of the present application is to solve the problem that the foot-clamp pole climber used on a rectangular electric pole has poor fit degree. Since the square electric pole has edges and corners, the foot-clamp pole climber may not tightly fit the pole body. In the process of using the foot-clamp pole climber to climb up and down the pole, the worker needs to move the two feet crosswise to realize it, which is easy to slide in the process of use, making the climbing process more difficult, increasing the maintenance time, and increasing the probability of safety accidents in the process of descending.

[0006] In order to achieve the above purpose, the present application adopts the following technical solution: a foot-operated electric pole climbing auxiliary device, comprising a first pole climbing frame, a second pole climbing frame movably installed on the first pole climbing frame through a movable plate, an avoiding opening formed on one side of the first pole climbing frame, a pedal rotatable after being stepped on arranged on one side of the first pole climbing frame, a strap for fixing the foot installed on the outer wall of the pedal, and a stepping mechanism installed on one side of the first pole climbing frame, the stepping mechanism comprising a rotating rod rotatably connected to one side of the first pole climbing frame and a slidable sleeve rod sleeved on the surface of the rotating rod, a straight slot limiting the sliding position of the sleeve rod and a semicircular slot communicated with the straight slot are formed on the surface of the rotating rod, and a rotating mechanism is arranged in the rotating rod.

[0007] The rotating rod is inserted into one side of the first pole climbing frame and is equipped with a transmission mechanism, the transmission mechanism includes a pushing piece arranged in the first pole climbing frame, and one side of the pushing piece is equipped with an ejection mechanism, when the connecting sleeve rod moves to the linear groove, the connecting sleeve rod can drive the rotating rod to rotate by treading the pedal, and the pushing piece moves and pushes the ejection mechanism to move in the first pole climbing frame along with the rotation of the rotating rod;

[0008] One side of the ejection mechanism is equipped with a contact block, the ejection mechanism can push the contact block to move out of the avoiding hole of the first pole climbing frame, the contact block abuts against the surface of the telegraph pole to replace the first pole climbing frame and reduce the friction between the first pole climbing frame and the telegraph pole;

[0009] The bottom of the first pole climbing frame is provided with a tensioning mechanism for moving the second pole climbing frame, the tensioning mechanism includes a limiting plate which moves along with the rotating rod, when the contact block moves out of the avoiding hole of the first pole climbing frame by treading the pedal, the rotating rod rotates and drives the limiting plate to move, so that the second pole climbing frame moves away from the limiting plate and the distance between the second pole climbing frame and the telegraph pole is increased.

[0010] Further description of the above technical solutions:

[0011] The treading mechanism further includes a supporting assembly, the supporting assembly includes a welding block arranged at the bottom of the first pole climbing frame, an L-shaped supporting plate for supporting the pedal is arranged in the welding block, two symmetrical moving tracks are connected to the top end of the L-shaped supporting plate, and the moving tracks are connected with the pedal through slidingly connected movable blocks in the moving tracks, and one side of the L-shaped supporting plate through the welding block is equipped with an abutting plate which abuts against the side wall of the telegraph pole;

[0012] A full-circle groove is arranged on the surface of the rotating rod, and the full-circle groove is arranged between the linear groove and the semi-circle groove, after the connecting sleeve rod moves into the full-circle groove, the two movable blocks are embedded in the moving tracks, so that the treaded pedal cannot drive the rotating rod to rotate.

[0013] Further description of the above technical solutions:

[0014] The rotating mechanism further includes a connecting rod arranged in the rotating rod, one end of the connecting rod extends out of the first pole climbing frame and is connected with a rotating gear, a gear plate which meshes with the rotating gear is welded on one side of the second pole climbing frame, when the connecting sleeve rod moves to the semi-circle groove, the connecting sleeve rod can drive the rotating gear to rotate by treading the pedal, and the rotating gear drives the second pole climbing frame to move close to the first pole climbing frame until the second pole climbing frame abuts against the telegraph pole;

[0015] A plurality of positioning blocks are connected to the outer periphery of the connecting rod away from the rotating gear, and a positioning rod and a limiting block are connected between two parallel positioning blocks, a rotating block is rotatably arranged on the outer periphery of the positioning rod, and a connecting rod is connected to the lower surface of the rotating block through an arc-shaped spring;

[0016] The connecting sleeve rod is moved into the semicircular groove by the pedal, the connecting sleeve rod hooks the rotating block by stepping on the pedal backward, the rotating block rotates with the connecting sleeve rod under the limitation of the limiting block, the connecting rod drives the rotating gear to rotate, and the rotating gear drives the second climbing rod frame connected with the gear plate to move towards the first climbing rod frame.

[0017] As a further description of the above technical solution:

[0018] The transmission mechanism further comprises a belt pulley sleeved on the outer periphery of the rotating rod, the first climbing rod frame is rotationally connected with a rotating rod in the inside, the rotating rod is also sleeved with a belt pulley on the outer periphery, the two belt pulleys are connected by a belt, and the side of the rotating rod away from the belt pulley is connected with a transmission part;

[0019] The inside of the transmission part is rotationally connected with a mounting rod, the side of the mounting rod is assembled with a rotating disc, and the side of the rotating disc away from the mounting rod is mounted with a pushing part for pushing the contact block;

[0020] The pedal is stepped on to drive the connecting sleeve rod to rotate the rotating rod, the belt pulley drives the rotating rod to rotate synchronously with the rotating rod through the belt, and the transmission part drives the pushing part to move linearly with the rotation of the rotating rod.

[0021] As a further description of the above technical solution:

[0022] The pushing part comprises a fixed block mounted in the first climbing rod frame, the top of the fixed block is connected with a sliding rail, the inside of the sliding rail is slidably connected with a moving block for moving the contact block, the side of the moving block is assembled with an abutting block, the side surface of the moving block is assembled with a positioning column, the positioning column extends out of the sliding rail, the side of the rotating disc is also assembled with a positioning column, and the two positioning columns are connected by a pushing rod.

[0023] As a further description of the above technical solution:

[0024] The ejection mechanism comprises a sliding frame and a fixed column mounted in the first climbing rod frame, the inside of the sliding frame is slidably connected with a sliding block for moving the pushing part, the outer periphery of the fixed column is slidably connected with a compression plate, the side of the compression plate is connected with a clamping block in contact with the abutting block, the compression plate is connected with the sliding block through a connecting plate, and the side of the connecting plate away from the connecting plate is connected with a contact block.

[0025] The pushing part can drive the clamping block to move synchronously when moving, the movement of the clamping block can drive the connecting plate to move linearly and make the contact block move out of the first climbing rod frame.

[0026] As a further description of the above technical solution:

[0027] The ejection mechanism further comprises a telescopic spring sleeved on the outer periphery of the fixed column, and the two ends of the telescopic spring are respectively connected with the inner wall of the first climbing rod frame and the side surface of the compression plate.

[0028] As a further description of the above technical solution:

[0029] The tensioning mechanism also includes a spiral groove formed on the outer periphery of the rotating rod, an mounting plate at the bottom of the first climbing frame, a limiting plate slidably connected inside the mounting plate, a movable column abutting against the spiral groove connected to the top of the limiting plate, a limiting groove formed on the side of the limiting plate away from the rotating rod, a limiting component abutting against one side of the limiting groove, and a gear plate connected to the top of the limiting component.

[0030] As the contact block moves out of the clearance hole in the first climbing frame by stepping on the pedal, the rotating rod rotates and drives the moving column to move. The limiting plate moves linearly with the moving column under the restriction of the bonding plate, which increases the distance between the limiting groove and the limiting component and moves the second climbing frame away from the first climbing frame.

[0031] As a further description of the above technical solution:

[0032] The limiting component includes multiple supports connected to the bottom of the gear plate. Two parallel supports are connected by a support rod. A limiting block is sleeved on the outer periphery of the support rod. The limiting block rotates and resets by a torsion spring set inside it.

[0033] As the limiting plate moves, the limiting block does not abut against the limiting plate. After the contact block moves out of the first climbing frame, it abuts against the utility pole, causing the second climbing frame to move along the movable plate. The gear plate moves with the second climbing frame, causing the limiting block to engage with one side of the limiting groove.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0035] Through the designed foot pedal and transmission mechanisms, when power workers need to descend from rectangular utility poles, they can push a pedal with their feet to move the connecting sleeve rod into the straight groove. Then, stepping on the pedal causes the transmission mechanism to rotate. The linear movement of the pushing component actuates the ejection mechanism within the first climbing frame. The ejection mechanism then pushes the contact block out of the first climbing frame and into contact with the pole surface. Simultaneously, the tensioning mechanism connected to the bottom of the first climbing frame moves linearly along the spiral groove under the constraint of the fitting plate. This causes the limiting plate to move towards the foot pedal. Through the gradually decreasing limiting groove and the cooperation of the limiting components, the second climbing frame gradually moves away from the first climbing frame. As the contact block moves out of the first climbing frame, the distance between the second and first climbing frames increases. After the contact block contacts the pole surface, the reduced friction allows power workers to slide down without needing to cross their feet, shortening the time required to descend, eliminating the need for repeated movement, reducing the risk of accidents, and ensuring the safety of power workers. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0037] Figure 2 This is the present invention. Figure 1 Enlarged view of a portion of point A in the middle.

[0038] Figure 3 This is the present invention. Figure 1 Enlarged view of section B in the middle.

[0039] Figure 4 This is a schematic diagram of the first climbing frame and other structures of the present invention from a bottom view.

[0040] Figure 5 This is the present invention. Figure 4 Enlarged view of a section at point C.

[0041] Figure 6 This is a schematic diagram of the first climbing frame and other structures of the present invention from another perspective, viewed from below.

[0042] Figure 7 This is the present invention. Figure 6 Enlarged view of a section at point D.

[0043] Figure 8 This is a schematic diagram of the first climbing frame, the second climbing frame, and other structures of the present invention.

[0044] Figure 9 This is a schematic diagram of the transmission mechanism of the present invention.

[0045] Figure 10 This is a schematic diagram of the ejection mechanism of the present invention.

[0046] Figure 11 This is a schematic diagram of the actuation mechanism of the present invention.

[0047] Figure 12 This is a schematic diagram of the rotating rod and connecting sleeve structure of the present invention.

[0048] Figure 13 This is a schematic diagram of the connecting rod, rotating gear, and other structures of the present invention.

[0049] Figure 14 This is a schematic diagram of the disassembled structure of the rotating mechanism of the present invention.

[0050] Figure 15 This is a schematic diagram of the tensioning mechanism of the present invention.

[0051] Figure 16 This is a schematic diagram of the disassembled structure of the limiting component of the present invention.

[0052] Legend:

[0053] 11. First climbing frame; 111. Movable board; 12. Second climbing frame; 13. Stepping board;

[0054] 20. Ejection mechanism; 21. Sliding frame; 22. Fixed column; 23. Slider; 24. Telescopic spring; 25. Compression plate; 26. Locking block; 27. Connecting plate;

[0055] 31. Contact block;

[0056] 40. Stepping mechanism; 41. Rotating rod; 411. Straight groove; 412. Full circular groove; 413. Semi-circular groove; 42. Connecting sleeve rod; 43. Support assembly; 431. Welded block; 432. L-shaped support plate; 433. Abutment plate; 434. Moving track; 435. Movable block;

[0057] 50. Transmission mechanism; 51. Pulley; 52. Belt; 53. Rotating rod; 54. Transmission component; 55. Mounting rod; 56. Rotating disk; 57. Pushing component; 571. Fixed block; 572. Slide rail; 573. Positioning pin; 574. Pushing rod; 575. Moving block; 576. Abutting block;

[0058] 60. Rotating mechanism; 61. Connecting rod; 62. Rotating gear; 621. Gear plate; 63. Positioning block; 64. Positioning rod; 65. Limiting block; 66. Rotating block; 67. Curved spring;

[0059] 70. Tensioning mechanism; 71. Adhesive plate; 72. Limiting plate; 73. Limiting groove; 74. Moving column; 75. Spiral groove; 76. Limiting assembly; 761. Support frame; 762. Support rod; 763. Limiting block; 764. Torsion spring. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] like Figures 1-16As shown, the present invention provides a foot-operated pole climbing auxiliary device, comprising: a first climbing frame 11, a second climbing frame 12 movably mounted on the first climbing frame 11 via a movable plate 111, anti-slip pads connected to the protruding positions of both the first climbing frame 11 and the second climbing frame 12, a contact block 31 connected inside the first climbing frame 11, the first climbing frame 11 and the second climbing frame 12 respectively abutting against both sides of the utility pole, an clearance opening on one side of the first climbing frame 11, a rotatable pedal 13 provided on one side of the first climbing frame 11, and a foot strap installed on the outer wall of the pedal 13 to secure the foot to the device, and further comprising: A stepping mechanism 40 is installed on one side of the first climbing pole frame 11. The stepping mechanism 40 includes a rotating rod 41 rotatably connected to one side of the first climbing pole frame 11 and a slidable connecting sleeve 42 sleeved on the surface of the rotating rod 41. The surface of the rotating rod 41 has a straight groove 411 that limits the sliding position of the connecting sleeve 42 and a semi-circular groove 413 that communicates with the straight groove 411. When the connecting sleeve 42 slides into the straight groove 411, it can drive the rotating rod 41 to rotate. When the connecting sleeve 42 slides into the semi-circular groove 413, it can drive the rotating mechanism 60 to adjust the distance between the first climbing pole frame 11 and the second climbing pole frame 12. The rotating rod 41 is equipped with a rotating mechanism 60 inside.

[0062] like Figure 1 , Figure 2 As shown, the stepping mechanism 40 also includes a support assembly 43. The support assembly 43 includes a welded block 431 installed at the bottom of the first climbing frame 11. An L-shaped support plate 432 for supporting the pedal 13 is fixedly installed inside the welded block 431. Two mutually symmetrical moving tracks 434 are connected to the top of the L-shaped support plate 432. The moving tracks 434 are connected to the pedal 13 through a sliding block 435. An abutment plate 433 that abuts against the side wall of the utility pole is fitted on one side of the L-shaped support plate 432 that passes through the welded block 431.

[0063] A full circular groove 412 is formed on the surface of the rotating rod 41, and the full circular groove 412 is set between the straight groove 411 and the semi-circular groove 413. The full circular groove 412 does not completely penetrate the rotating rod 41, leaving a certain thickness. After the connecting sleeve rod 42 moves into the full circular groove 412, the two movable blocks 435 are engaged with the moving track 434, so that the pedal 13 cannot drive the rotating rod 41 to rotate.

[0064] In the initial state, the connecting sleeve 42 is in the full circular groove 412, and is supported and limited by the movable block 435 connected to the bottom of the pedal 13 and the moving track 434 (the movable block 435 is only connected to the moving track 434 when the connecting sleeve 42 is in the full circular groove 412), so that the rotating rod 41 cannot be rotated by stepping on the pedal 13, and the downward pressure of the pedal 13 causes the abutment plate 433 connected to the L-shaped support plate 432 to support the surface of the utility pole, increasing the support force and friction.

[0065] When in use, when the connecting rod 42 is in the full circular groove 412, the first climbing frame 11 and the second climbing frame 12 can be engaged on the rectangular utility pole by moving the pedal 13 normally to achieve climbing up and down the pole. Since the first climbing frame 11 and the second climbing frame 12 are close to the edge of the rectangular utility pole, there will be no situation where they cannot be tightly attached to the pole body, which would cause them to slip easily during use.

[0066] like Figure 1 , Figure 8 , Figure 13 , Figure 14 As shown, the rotating mechanism 60 also includes a connecting rod 61 assembled inside the rotating rod 41. The connecting rod 61 is rotatably connected to the first climbing frame 11, and the diameter of the connecting rod 61 is smaller than the hole opened inside the rotating rod 41. The connecting rod 61 does not rotate synchronously with the rotating rod 41, and one end of the connecting rod 61 extends out of the first climbing frame 11 and is connected to a rotating gear 62. A gear plate 621 that meshes with the rotating gear 62 is welded to one side of the second climbing frame 12.

[0067] A number of positioning blocks 63 are connected to the outer periphery of the connecting rod 61 away from the rotating gear 62, and a positioning rod 64 and a limiting block 65 are connected between two parallel positioning blocks 63. A rotating block 66 is rotatably sleeved on the outer periphery of the positioning rod 64, and the lower surface of the rotating block 66 is connected to the connecting rod 61 through an arc spring 67.

[0068] The connecting sleeve 42 moves into the semi-circular groove 413 via the pedal 13. Stepping on the pedal 13 backward causes the connecting sleeve 42 to hook the rotating block 66. Under the restriction of the limiting block 65, the rotating block 66 rotates with the connecting sleeve 42, causing the connecting rod 61 to drive the rotating gear 62 to rotate. The rotating gear 62 pulls the second climbing frame 12 connected to the gear plate 621 to move towards the first climbing frame 11.

[0069] To facilitate climbing rectangular utility poles of different sizes, the distance between the first climbing frame 11 and the second climbing frame 12 needs to be adjusted using the rotating mechanism 60 before climbing. The connecting sleeve rod 42 is moved into the semi-circular groove 413 by moving the pedal 13. After the moving track 434 is removed, stepping back on the pedal 13 causes the connecting sleeve rod 42 to hook onto the rotating block 66, which is restricted by the limiting block 65. The rotating block 66 then drives the connecting rod 61 to rotate within the rotating rod 41 via the positioning block 63. This causes the rotating gear 62 to move along with the rotating connecting rod 61, and its meshing gear plate 621 moves. Since the second climbing frame 12 is connected to the gear plate 621, it moves towards the first climbing frame 11 under the restriction of the movable plate 111, thus completing the distance adjustment.

[0070] like Figure 4, Figure 6 , Figure 9 As shown, a transmission mechanism 50 is installed on one side of the rotating rod 41 inserted into the first climbing frame 11. The transmission mechanism 50 also includes a pulley 51 sleeved on the outer periphery of the rotating rod 41. A rotating rod 53 is rotatably connected inside the first climbing frame 11. A pulley 51 is also sleeved on the outer periphery of the rotating rod 53. The two pulleys 51 are connected by a belt 52. A transmission component 54 is connected to the side of the rotating rod 53 away from the pulley 51.

[0071] The transmission component 54 is internally rotatably connected to a mounting rod 55. A rotating disk 56 is mounted on one side of the mounting rod 55, and a pusher 57 for the push contact block 31 is mounted on the side of the rotating disk 56 away from the mounting rod 55.

[0072] When the pedal 13 is stepped forward, the connecting sleeve rod 42 drives the rotating rod 41 to rotate. The pulley 51 pulls the rotating rod 53 through the belt 52 and rotates synchronously with the rotating rod 41. The transmission component 54 causes the pushing component 57 to move linearly as the rotating rod 53 rotates.

[0073] When it is necessary to climb up or down a rectangular utility pole, the connecting sleeve 42 is moved into the straight groove 411 by moving the pedal 13. Then, the pedal 13 is stepped forward, which drives the rotating rod 41 to rotate through the connecting sleeve 42. As the rotating rod 41 rotates, it drives the pulley 51 located inside the first climbing frame 11 to rotate. Through the transmission of the belt 52, the rotating rod 53 is driven to rotate. The rotation of the rotating rod 53 drives the transmission component 54 to transmit power to the mounting rod 55, causing the mounting rod 55 to drive the rotating disk 56 to rotate. The rotation of the rotating disk 56 moves the pushing component 57 to abut against the contact block 31 and move it out of the first climbing frame 11, replacing the first climbing frame 11 in contact with the utility pole to reduce friction and facilitate the descent of power personnel.

[0074] like Figure 11 As shown, the pushing member 57 includes a fixed block 571 installed inside the first climbing frame 11. The top of the fixed block 571 is connected to a slide rail 572. The slide rail 572 is slidably connected to a moving block 575 that pushes the contact block 31 to move. An abutment block 576 is mounted on one side of the moving block 575. A positioning post 573 is mounted on the side of the moving block 575 and extends out of the slide rail 572. A positioning post 573 is also mounted on one side of the rotating disk 56. The two positioning posts 573 are connected by a pushing rod 574. An ejection mechanism 20 is mounted on one side of the pushing member 57. When the connecting sleeve rod 42 moves to the straight groove 411, the pedal 13 can be stepped on to make the connecting sleeve rod 42 drive the rotating rod 41 to rotate. As the rotating rod 41 rotates, the pushing member 57 moves and pushes the ejection mechanism 20 to move inside the first climbing frame 11.

[0075] As the rotating disk 56 rotates, the positioning pin 573 pushes the push rod 574 to move linearly inside the slide rail 572, thereby causing the push rod 574 to move along the slide rail 572 and drive the abutment block 576 to push the ejection mechanism 20.

[0076] like Figure 4 , Figure 6 , Figure 10 As shown, the ejection mechanism 20 includes a sliding frame 21 and a fixed column 22 installed inside the first climbing frame 11. The sliding frame 21 is slidably connected to a slider 23 that moves in conjunction with the pusher 57. The fixed column 22 is slidably connected to a compression plate 25. One side of the compression plate 25 is connected to a snap-fit ​​block 26 that contacts the abutment block 576. The compression plate 25 is connected to the slider 23 through a connecting plate 27. The side of the connecting plate 27 away from the connecting plate 27 is connected to a contact block 31 (the material of the contact block 31 can be a friction-reducing material such as polytetrafluoroethylene).

[0077] When the pusher 57 moves, it can push the locking block 26 to move synchronously. The movement of the locking block 26 can drive the connecting plate 27 to move linearly and cause the contact block 31 to move out of the first climbing frame 11.

[0078] The ejection mechanism 20 also includes a telescopic spring 24 sleeved around the outer periphery of the fixed column 22. The two ends of the telescopic spring 24 are respectively connected to the inner wall of the first climbing frame 11 and the side of the compression plate 25.

[0079] The ejection mechanism 20 can push the contact block 31 out of the clearance hole opened in the first climbing frame 11. As the locking block 26 moves, the compression plate 25 squeezes the telescopic spring 24. When the locking block 26 disengages from the pusher 57, the telescopic spring 24 rebounds and pushes the compression plate 25 and the slider 23 to move, causing the contact block 31 to retract into the first climbing frame 11.

[0080] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 13 , Figure 15 , Figure 16 As shown, a tensioning mechanism 70 for moving the second climbing frame 12 is installed at the bottom of the first climbing frame 11. The tensioning mechanism 70 also includes a spiral groove 75 formed on the outer periphery of the rotating rod 41. A mounting plate 71 is installed at the bottom of the first climbing frame 11. A limiting plate 72 is slidably connected inside the mounting plate 71. A movable column 74 that abuts against the spiral groove 75 is connected to the top of the limiting plate 72. A limiting groove 73 is formed on the side of the limiting plate 72 away from the rotating rod 41. The limiting groove 73 is as follows: Figure 7 The configuration shown is either incremental or decremental, and the connection angle of each layer is set as an angle. One side of the limiting groove 73 abuts against the limiting component 76, and the top of the limiting component 76 is connected to the gear plate 621.

[0081] The limiting assembly 76 includes multiple supports 761 connected to the bottom of the gear plate 621. Two parallel supports 761 are connected by a support rod 762. A limiting block 763 is sleeved on the outer periphery of the support rod 762. The limiting block 763 rotates and resets by a torsion spring 764 disposed inside it.

[0082] As the limiting plate 72 moves, the limiting block 763 no longer abuts against the limiting plate 72. After the contact block 31 moves out of the first climbing frame 11, it abuts against the utility pole, causing the second climbing frame 12 to move along the movable plate 111. The gear plate 621 moves with the second climbing frame 12, causing the limiting block 763 to engage with one side of the limiting groove 73.

[0083] As the contact block 31 moves out of the clearance hole in the first climbing frame 11 by stepping forward on the pedal 13, the rotating rod 41 rotates and drives the moving column 74 to move. The moving column 74 moves along the spiral groove 75 as the rotating rod 41 rotates. The limiting plate 72 moves to the right with the moving column 74 under the restriction of the bonding plate 71, which increases the distance between the limiting groove 73 and the limiting component 76. Then, the limiting component 76 is pressed against the limiting groove 73 again by the rectangular pole, which causes the second climbing frame 12 to move away from the first climbing frame 11. This completes the removal of the contact block 31 and increases the distance between the second climbing frame 12 and the first climbing frame 11.

[0084] When pedal 13 is not pressed, pedal 13 is in a horizontal state. Then, rotating rod 41 rotates with pedal 13, causing moving column 74 to move to the left along spiral groove 75. This causes limiting plate 72 to move under the action of the angle in limiting groove 73. The angle of limiting groove 73 pushes limiting component 76 to move, thereby driving the second climbing frame 12 connected to gear plate 621 to reset and reduce the distance between it and the first climbing frame 11.

[0085] It should be noted that when adjusting the distance between the first climbing frame 11 and the second climbing frame 12 by rotating mechanism 60, one side of the limiting plate 72 will abut against the limiting block 763 and rotate along the support rod 762, so that the limiting block 763 is in a retracted state. After the limiting block 763 moves to the other side of the limiting plate 72, the limit block 763 is reset by the rebound of the torsion spring 764, so that the limiting block 763 abuts against the other side of the limiting plate 72.

[0086] like Figure 1 As shown, this device is set up in two sets, and can be used by both the left and right feet.

[0087] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A foot-operated pole climbing auxiliary device, comprising a first climbing frame (11), a second climbing frame (12) movably mounted on the first climbing frame (11) via a movable plate (111), an clearance opening on one side of the first climbing frame (11), and a rotatable pedal (13) provided on one side of the first climbing frame (11), the outer wall of the pedal (13) being fitted with a foot strap, characterized in that, Also includes: A stepping mechanism (40) is installed on one side of the first climbing pole frame (11). The stepping mechanism (40) includes a rotating rod (41) rotatably connected to one side of the first climbing pole frame (11) and a slidable connecting sleeve (42) sleeved on the surface of the rotating rod (41). A straight groove (411) restricting the sliding position of the connecting sleeve (42) and a semi-circular groove (413) communicating with the straight groove (411) are opened on the surface of the rotating rod (41). A rotating mechanism (60) is provided inside the rotating rod (41). The rotating rod (41) is inserted into the first climbing frame (11) and a transmission mechanism (50) is installed on one side. The transmission mechanism (50) includes a pusher (57) installed inside the first climbing frame (11), and an ejector mechanism (20) is installed on one side of the pusher (57). When the connecting sleeve rod (42) moves to the straight groove (411), the pedal (13) can be stepped on to make the connecting sleeve rod (42) drive the rotating rod (41) to rotate. As the rotating rod (41) rotates, the pusher (57) moves and pushes the ejector mechanism (20) to move inside the first climbing frame (11). A contact block (31) is assembled on one side of the ejection mechanism (20). The ejection mechanism (20) can push the contact block (31) out of the clearance hole opened in the first climbing frame (11). The contact block (31) replaces the first climbing frame (11) and abuts against the surface of the utility pole, reducing the friction between the contact block (31) and the utility pole. The bottom of the first climbing frame (11) is equipped with a tensioning mechanism (70) that moves the second climbing frame (12). The tensioning mechanism (70) includes a limiting plate (72) that moves with the rotation of the rotating rod (41). When the contact block (31) is moved out of the clearance hole opened in the first climbing frame (11) by stepping on the pedal (13), the rotating rod (41) rotates and drives the limiting plate (72) to move, so that the second climbing frame (12) moves away from the limiting plate (72) and increases the distance between it and the utility pole.

2. The foot-operated pole climbing auxiliary device according to claim 1, characterized in that, The stepping mechanism (40) also includes a support assembly (43), which includes a welding block (431) installed at the bottom of the first climbing frame (11). An L-shaped support plate (432) for supporting the pedal (13) is installed inside the welding block (431). The top of the L-shaped support plate (432) is connected to two mutually symmetrical moving tracks (434), and the inside of the moving track (434) is connected to the pedal (13) through a slidingly connected movable block (435). An abutment plate (433) that abuts against the side wall of the utility pole is fitted on one side of the L-shaped support plate (432) through the welding block (431). The rotating rod (41) has a full circular groove (412) on its surface, and the full circular groove (412) is located between the straight groove (411) and the semi-circular groove (413). After the connecting sleeve rod (42) moves into the full circular groove (412), the two movable blocks (435) are engaged with the moving track (434), so that the pedal (13) being stepped on cannot drive the rotating rod (41) to rotate.

3. The foot-operated pole climbing auxiliary device according to claim 1, characterized in that, The rotating mechanism (60) also includes a connecting rod (61) assembled inside the rotating rod (41), and one end of the connecting rod (61) extends out of the first climbing frame (11) and is connected to the rotating gear (62). A gear plate (621) that meshes with the rotating gear (62) is welded to one side of the second climbing frame (12). When the connecting sleeve rod (42) moves to the semi-circular groove (413), the pedal (13) can be stepped on to make the connecting sleeve rod (42) drive the rotating gear (62) to rotate. When the rotating gear (62) rotates, it pushes the second climbing frame (12) to approach the first climbing frame (11) until it abuts against the utility pole. The connecting rod (61) is connected to a number of positioning blocks (63) on its outer periphery away from the rotating gear (62), and a positioning rod (64) and a limiting block (65) are connected between two parallel positioning blocks (63). A rotating block (66) is rotatably sleeved on the outer periphery of the positioning rod (64), and the lower surface of the rotating block (66) is connected to the connecting rod (61) through an arc spring (67). The connecting sleeve (42) is moved into the semi-circular groove (413) by the pedal (13). Stepping on the pedal (13) backward causes the connecting sleeve (42) to hook the rotating block (66). The rotating block (66) rotates with the connecting sleeve (42) under the restriction of the limiting block (65), which causes the connecting rod (61) to drive the rotating gear (62) to rotate. The rotating gear (62) pulls the second climbing frame (12) connected to the gear plate (621) to move towards the first climbing frame (11).

4. The foot-operated pole climbing auxiliary device according to claim 1, characterized in that, The transmission mechanism (50) also includes a pulley (51) sleeved on the outer periphery of the rotating rod (41), a rotating rod (53) is rotatably connected inside the first climbing frame (11), and a pulley (51) is also sleeved on the outer periphery of the rotating rod (53). The two pulleys (51) are connected by a belt (52), and a transmission component (54) is connected to the side of the rotating rod (53) away from the pulley (51). The transmission component (54) is rotatably connected to a mounting rod (55). A rotating disk (56) is mounted on one side of the mounting rod (55), and a pusher (57) for the push contact block (31) is mounted on the side of the rotating disk (56) away from the mounting rod (55). When the pedal (13) is stepped on, the connecting sleeve rod (42) drives the rotating rod (41) to rotate. The pulley (51) pulls the rotating rod (53) through the belt (52) to rotate synchronously with the rotating rod (41). The transmission component (54) causes the pushing component (57) to move linearly as the rotating rod (53) rotates.

5. The foot-operated pole climbing auxiliary device according to claim 4, characterized in that, The pusher (57) includes a fixed block (571) installed inside the first climbing frame (11). The top of the fixed block (571) is connected to a slide rail (572). The slide rail (572) is slidably connected to a moving block (575) that pushes the contact block (31) to move. An abutment block (576) is mounted on one side of the moving block (575). A positioning post (573) is mounted on the side of the moving block (575), and the positioning post (573) extends out of the slide rail (572). A positioning post (573) is also mounted on one side of the rotating disk (56). The two positioning posts (573) are connected by a push rod (574).

6. The foot-operated pole climbing auxiliary device according to claim 4, characterized in that, The ejection mechanism (20) includes a sliding frame (21) installed inside the first climbing frame (11) and a fixed column (22). The sliding frame (21) is slidably connected to a slider (23) that moves in conjunction with the pusher (57). The fixed column (22) is slidably connected to a compression plate (25). One side of the compression plate (25) is connected to a snap-fit ​​block (26) that contacts the abutment block (576). The compression plate (25) is connected to the slider (23) through a connecting plate (27). The side of the connecting plate (27) away from the connecting plate (27) is connected to a contact block (31). When the pusher (57) moves, it can push the snap block (26) to move synchronously. The movement of the snap block (26) can drive the connecting plate (27) to move linearly and cause the contact block (31) to move out of the first climbing frame (11).

7. The foot-operated pole climbing auxiliary device according to claim 6, characterized in that, The ejection mechanism (20) also includes a telescopic spring (24) sleeved on the outer periphery of the fixed column (22), with the two ends of the telescopic spring (24) connected to the inner wall of the first climbing frame (11) and the side of the compression plate (25), respectively.

8. The foot-operated pole climbing auxiliary device according to claim 1, characterized in that, The tensioning mechanism (70) also includes a spiral groove (75) opened on the outer periphery of the rotating rod (41), a mounting plate (71) at the bottom of the first climbing frame (11), a limiting plate (72) slidably connected inside the mounting plate (71), a moving column (74) abutting against the spiral groove (75) connected to the top of the limiting plate (72), a limiting groove (73) opened on the side of the limiting plate (72) away from the rotating rod (41), a limiting component (76) abutting on one side of the limiting groove (73), and a gear plate (621) connected to the top of the limiting component (76). By stepping on the pedal (13), the contact block (31) is moved out of the clearance hole opened in the first climbing frame (11). At the same time, the rotating rod (41) rotates and drives the moving column (74) to move. The limiting plate (72) moves linearly with the moving column (74) under the restriction of the fitting plate (71), which increases the distance between the limiting groove (73) and the limiting component (76) and moves the second climbing frame (12) away from the first climbing frame (11).

9. A foot-operated pole climbing auxiliary device according to claim 8, characterized in that, The limiting component (76) includes multiple supports (761) connected to the bottom of the gear plate (621). Two parallel supports (761) are connected by a support rod (762). A limiting block (763) is sleeved on the outer periphery of the support rod (762). The limiting block (763) rotates and resets by a torsion spring (764) set inside it. As the limiting plate (72) moves, the limiting block (763) no longer abuts against the limiting plate (72). After the contact block (31) moves out of the first climbing frame (11), it abuts against the utility pole, causing the second climbing frame (12) to move along the movable plate (111). The gear plate (621) moves with the second climbing frame (12), causing the limiting block (763) to engage with one side of the limiting groove (73).

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