Climbing device for electric power overhaul

Abstract

The invention discloses a climbing device for electric power overhaul, which comprises a high ladder fixed on an iron tower and a plurality of cross rods for climbing, and further comprises a safety protection vehicle, the safety protection vehicle can be hung on any cross rod to keep the position fixed, and the safety protection vehicle at the position is hung on the cross rods at the two sides at the same time; the bottom of the safety protection vehicle is connected with a resistance mechanism through a traction assembly, the resistance mechanism synchronously moves upwards along with the safety protection vehicle on the high ladder, and a safety rope used by a climber is tied to the bottom of the resistance mechanism. And in the downward moving process of the safety protection vehicle, the traction assembly is extruded between the safety protection vehicle and the resistance mechanism to slow down downward moving of the safety protection vehicle. The safety protection vehicle provides safety guarantee for climbing of workers, the workers only need to climb independently and do not need to carry out safety protection operation while climbing, the operation difficulty of the workers during climbing is reduced, and the operation safety is improved.

Description

Technical Field

[0001] The invention belongs to the field of power maintenance, and specifically relates to a climbing device used for power maintenance. Background Art

[0002] In the laying of power grid, power tower is an important equipment to support power cable line. Power tower is a tower-shaped building for power transmission. Their structural characteristics are that all tower types belong to space truss structure. The rods are mainly composed of single equilateral angle steel or combined angle steel. The rods are connected by rough bolts, which are connected by shear force. The whole tower is composed of angle steel, connecting steel plate and bolts. Some parts such as tower feet are welded into a combination of several steel plates, so hot-dip galvanizing anti-corrosion, transportation and construction are very convenient. In the use of power tower, personnel are often required to climb and maintain or wire regularly. Foot nails or climbing ladders are set on one of the main materials of the tower to facilitate construction workers to climb the tower.

[0003] A climbing safety protection device for electric power engineering disclosed in a Chinese patent (publication number: CN117323591A), the use method of which is as follows: S1: the staff uses a strap to pass through the through slot, connects the two ends of the strap, so that the baffle is in front of the staff's chest, and realizes the fixed connection between the staff and the baffle; S2: pull the L-slot outward, the L-slot drives the round tube to move along the first round rod, realizes the first spring stretching, makes the L-slot surpass the vertical rods on both sides of the ladder, makes the vertical frame contact the ladder, releases the hand, makes the vertical rod of the ladder be in the area formed by the L-slot and the round tube, and the round ball is between the two horizontal rods of the ladder. It can be seen from the above records that during use, the staff not only needs to climb on the ladder, but also needs to continuously push the baffle to move, so that the baffle moves upward with the staff, so as to maintain the protective effect of the device. Such protective measures require frequent pushing of the baffle to move, and the staff can only operate with one hand during the pushing of the baffle, which increases the difficulty of the staff's operation and is not conducive to safe operation. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A climbing device for electric power maintenance comprises a ladder fixed on an iron tower and a plurality of cross bars for climbing, wherein the cross bars are evenly and equidistantly distributed on both sides of the ladder, and a safety protection vehicle is also included. A remote-controlled driving mechanism is arranged in the safety protection vehicle, and the driving mechanism drives the safety protection vehicle to move upward along the ladder. The safety protection vehicle can be hung on any cross bar to keep a fixed position, and the safety protection vehicle in this position is simultaneously hung on the cross bars on both sides; a resistance mechanism is connected to the bottom of the safety protection vehicle through a pulling component, and the resistance mechanism moves upward synchronously with the safety protection vehicle on the ladder, and a safety rope used by climbers is tied to the bottom of the resistance mechanism; during the downward movement of the safety protection vehicle, the pulling component is squeezed between the safety protection vehicle and the resistance mechanism to slow down the downward movement of the safety protection vehicle, and the safety rope at the bottom is used to pull the resistance mechanism to move the safety protection vehicle downward.

[0007] Preferably, a storage cavity corresponding to the cross bar is provided on the side wall of the safety protection vehicle facing the ladder, and a hanging part is arranged in the storage cavity through a horizontal rotating shaft. The hanging part flips along the vertical plane in the storage cavity, and the hanging part is an L-shaped structure; an electric limiting part parallel to the rotating shaft is arranged in the storage cavity, and when the hanging part is in a horizontal position, the electric limiting part contacts with the upper surface of the hanging part, so as to support the hanging part to maintain a horizontal position; a reset mechanism is provided at one end of the hanging part located inside the storage cavity, and the reset mechanism drives the hanging part to rotate.

[0008] Preferably, when the safety protection vehicle moves upward, the hooking portion maintains a horizontal position, and the upward movement of the hooking portion is hindered by the cross bar and rotates counterclockwise.

[0009] Preferably, the reset mechanism includes a fixed plate, a guide rod, a reset spring and an abutment movable plate, the fixed plate is fixed on the inner wall of the storage chamber, the abutment movable plate is arranged parallel to the lower side of the fixed plate, the abutment movable plate is fixedly connected to the vertical guide rod, the guide rod slides through the fixed plate, a reset spring is sleeved on the outside of the guide rod, the lower end of the reset spring is fixedly connected to the abutment movable plate, the upper end is fixedly connected to the fixed plate, and the reset spring pushes the abutment movable plate to generate pressure acting on the horizontal surface of the hanging part.

[0010] Preferably, the safety protection vehicle is provided with an inner groove running through the upper and lower parts on the side facing the ladder, the inner groove is buckled on the outside of the ladder, and limiting sliders A along the moving direction of the ladder are fixed on both sides of the inner wall of the inner groove, and a limiting slide groove along the axial direction is provided on the side wall of the ladder, and the limiting slide groove A is slidably connected to the inside of the limiting slide groove.

[0011] Preferably, a limiting slider B is fixed at the position of the resistance mechanism corresponding to the limiting slide groove, and the limiting slider B is also slidably connected inside the limiting slide groove.

[0012] Preferably, the pulling assembly includes two rubber resistance sleeves respectively located inside the limiting slide grooves on both sides, and the upper and lower ends of the rubber resistance sleeves are fixed with connecting seats, which are respectively fixedly connected to the corresponding limiting slider A and limiting slider B. When the safety protection vehicle and the resistance mechanism approach each other, the rubber resistance sleeve is squeezed and expands and twists, thereby generating pressure on the inner wall of the limiting slide groove.

[0013] Preferably, the rubber resistance sleeve is a cylindrical structure, and its outer wall is attached to the inner wall of the limiting slide groove when the rubber resistance sleeve is in a straight position; a plurality of pulling steel cables are passed through the interior of the rubber resistance sleeve, and both ends of the pulling steel cables are fixed on the connecting seat.

[0014] Preferably, a hanging ring is fixedly connected to the bottom of the resistance mechanism, and a safety rope is connected to the hanging ring.

[0015] Preferably, a plurality of fixing ears are fixed on the side wall of the ladder for fixing the ladder on the iron tower, and an axial walking track is provided on the side wall of the ladder facing the safety protection vehicle, and the driving mechanism extends into the walking track and travels on the inner wall of the walking track.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The safety protection vehicle in the present invention moves on the ladder and moves to the iron tower before the staff climbs. The safety protection vehicle provides safety protection for the staff to climb. The staff only needs to climb independently and does not need to perform safety protection operations while climbing, which reduces the difficulty of operation for the staff when climbing and improves the safety of operation;

[0018] (2) When the safety protection vehicle moves upward, the extended hook part is hooked on the cross bar. The hook part is used to support the safety protection vehicle and other structures, provide sufficient support for the use of the safety rope, and achieve safety protection; when the hook part moves upward with the safety protection vehicle and encounters the obstruction of the cross bar, it can deflect downward to break away from the obstruction of the cross bar, ensuring that the safety protection vehicle moves upward smoothly. The deflected hook part is quickly reset to a horizontal position under the action of the reset mechanism, ensuring that the hook part can be hooked on the cross bar, so that the safety protection vehicle can move upward to any cross bar position, which is flexible to use;

[0019] (3) A resistance mechanism is connected to the bottom of the safety protection vehicle by a pulling assembly. The resistance mechanism and the pulling assembly can provide resistance when the safety protection vehicle moves downward. The resistance mechanism is pulled by the safety rope to slowly move the safety protection vehicle downward, so that the downward movement speed can be controlled to ensure safety in use. At the same time, the pulling assembly increases the resistance between the limit slider and the limit slide groove during the downward movement, further slowing down the falling speed, so that the device can be safely used on the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a climbing device used for power maintenance;

[0021] Figure 2 It is a schematic diagram of the main structure of a climbing device used for power maintenance;

[0022] Figure 3 It is a rear view structural schematic diagram of a climbing device used for power maintenance;

[0023] Figure 4 The figure is a schematic diagram of a ladder structure in a climbing device used for power maintenance;

[0024] Figure 5 A schematic diagram of the connection structure of a safety protection vehicle in a climbing device for power maintenance;

[0025] Figure 6 It is a schematic diagram of the rear view structure of a safety protection vehicle in a climbing device used for power maintenance;

[0026] Figure 7 for Figure 6 A is a schematic diagram of the cross-sectional structure;

[0027] Figure 8 The diagram is a partial structural diagram of a pulling assembly in a climbing device used for power maintenance.

[0028] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0029] 1. Ladder; 11. Crossbar; 12. Walking track; 13. Limit slide; 14. Fixed ear; 2. Safety protection vehicle; 21. Limit slider A; 23. Inner groove; 24. Driving mechanism; 25. Storage cavity; 26. Hanging part; 27. Electric limit part; 28. Reset mechanism; 281. Fixed plate; 282. Guide rod; 283. Reset spring; 284. Abutment movable plate; 29. ​​Rotating shaft; 3. Resistance mechanism; 31. Limit slider B; 32. Hanging ring; 4. Pulling assembly; 41. Rubber resistance sleeve; 42. Pulling steel cable; 43. Connecting seat. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figure 1-8 A climbing device for power maintenance shown in the figure comprises a ladder 1 fixed on an iron tower and a plurality of cross bars 11 for climbing. The cross bars 11 are evenly and equidistantly distributed on both sides of the ladder 1. Workers can climb the ladder 1 to the top of a higher iron tower to perform power maintenance. The cross bars 11 can be symmetrically distributed on both sides of the ladder 1, or can be staggered left and right to facilitate climbing by workers. A plurality of fixing ears 14 are fixed on the side walls of the ladder 1 for fixing the ladder 1 on the iron tower.

[0033] A mobile safety protection vehicle 2 is provided on the ladder 1. The safety protection vehicle 2 moves to the highest position of the tower before the staff climbs up. There is no need for the staff to push the safety protection vehicle 2 upward while climbing. After the safety protection vehicle 2 moves to a suitable height, it is fixedly hung on the cross bar 1. The safety protection vehicle 2 can provide support of a safety rope for the climbing staff and provide safety protection for the staff when climbing. A remote-controlled driving mechanism 24 is provided in the safety protection vehicle 2. The driving mechanism 24 drives the safety protection vehicle 2 to move upward along the ladder 1. The driving mechanism 24 at least includes a driving wheel, a driving motor, a power source, and a remote control module. The driving mechanism 24 enables the entire safety protection vehicle 2 to be remotely controlled. The driving mechanism 24 contacts the surface of the ladder 1, and the driving wheel is used to roll on the surface of the ladder 1 to realize the upward movement of the safety protection vehicle 2. An axially-directed walking track 12 is provided on the side wall of the ladder 1 facing the safety protection vehicle 2. The driving mechanism 24 extends into the walking track 12 and moves on the inner wall of the walking track 12. The walking track 12 provides sufficient rolling friction for the driving mechanism 24 to move upward.

[0034] The safety protection vehicle 2 can be hung on the cross bar 11 at any height during the upward movement, and can keep a fixed position at any position, and will not move downward, but can only move upward in one direction. The specific structure is as follows: a storage cavity 25 corresponding to the cross bar 11 is provided on the side wall of the safety protection vehicle 2 facing the ladder 1, and a hanging part 26 is arranged in the storage cavity 25 through a horizontal rotating shaft 29. The hanging part 26 is turned along the vertical plane in the storage cavity 25, and the hanging part 26 can be rotated to a horizontal position and extended from the inside of the storage cavity 25. The hanging part 26 is an L-shaped structure, and the extended outer end extends downward, so that the hanging part 26 and the cross bar 11 are in the same vertical position, and the hanging part 26 is supported on the cross bar 11 by contacting the cross bar 11 with the cross bar 11, and the hanging part 26 is used to support the cross bar 11. The connecting portion 26 is hooked on the cross bar 11 to fix the safety protection vehicle 2 on the ladder 1 to prevent the safety protection vehicle 2 from moving downward; in order to ensure that the hooking portion 26 can avoid the cross bar 11 when moving upward and can be hooked on the corresponding cross bar 11 after moving to a suitable position, an electric limiting portion 27 parallel to the rotating shaft 29 can be provided in the storage chamber 25. The electric limiting portion 27 is higher than the rotating shaft 29 and is closer to the outer port of the storage chamber 25 than the rotating shaft 29. When the hooking portion 26 is rotated to a horizontal position, the upper surface of the hooking portion 26 just contacts the electric limiting portion 27 The electric limiter 27 is used to prevent the outer end of the hooking part 26 from continuing to flip upward, thereby limiting the hooking part 26 to a horizontal position, and the outer end of the hooking part 26 can deflect downward. When the safety protection vehicle 2 moves upward, it encounters the obstruction of the cross bar 11 and rotates counterclockwise. The outer end of the hooking part 26 can deflect downward and break away from the obstruction of the cross bar 11, so that the safety protection vehicle 2 can smoothly pass through the cross bar 11 when moving upward, and the safety protection vehicle 2 can move upward along the ladder 1. There is no need to manually adjust the structure, and remote operation is more convenient; the function of the electric limiter 27 is to use The hanging part 26 can be supported by remote electric control, and the electric limit part 27 can be controlled to be detached from the hanging part 26, so as to remove the limiting effect on the hanging part 26, so that the hanging part 26 can be rotated clockwise from the horizontal position and stored in the storage chamber 25, so that the hanging part 26 will not be hung on the cross bar 11, and will not hinder the downward movement of the safety protection vehicle 2. The specific implementation means of the electric limit part 27 can be a horizontal electric telescopic rod, which limits the rotation of the hanging part 26 when extended, and detaches from the hanging part 26 after contraction.

[0035] A reset mechanism 28 is also provided inside the storage chamber 25 , and the reset mechanism 28 pushes one end of the hanging portion 26 located inside the storage chamber 25 , so that the hanging portion 26 can be quickly reset to a horizontal position after being offset. The reset mechanism 28 includes a fixed plate 281, a guide rod 282, a reset spring 283 and an abutting movable plate 284. The fixed plate 281 is fixed on the inner wall of the storage chamber 25. The abutting movable plate 284 is arranged parallel to the lower side of the fixed plate 281. The abutting movable plate 284 is fixedly connected to the vertical guide rod 282. The guide rod 282 slides through the fixed plate 281. The top of the guide rod 282 has an anti-falling protrusion so that the top of the guide rod 282 always remains connected to the fixed plate 281. The outer side of the guide rod 282 is sleeved with a reset spring 283. The lower end of the reset spring 283 is fixedly connected to the abutting movable plate 284, and the upper end is fixedly connected to the fixed plate 281. The reset spring 283 pushes the abutting movable plate 284 to generate pressure on the surface of the horizontal hanging part 26, so that the hanging part 26 extends into A driving force is generated at one end of the storage chamber 25, and the hanging part 26 is flipped from the horizontal position. No matter it rotates clockwise or counterclockwise, the abutting movable plate 284 has a thrust acting on the hanging part 26. During the upward movement of the safety protection vehicle 2, the hanging part 26 is pushed to rotate counterclockwise, so that the abutting movable plate 284 moves toward the fixed plate 281, and the return spring 283 is further compressed. After the hanging part 26 is separated from the cross bar 11, the hanging part 26 is pushed by the return spring 283 to quickly return to the horizontal position; when the electric limiting part 27 removes the limiting effect on the hanging part 26, the hanging part 26 is pushed by the return spring 283, so that the hanging part 26 rotates quickly and enters the storage chamber 25, and the hanging part 26 is kept in the storage chamber 25, and the hanging part 26 will not affect the downward movement of the safety protection vehicle 2. The storage cavity 25 , the hanging part 26 and the related structures correspond to the positions of the cross bars 11 on both sides. The hanging parts 26 are used to support the cross bars 11 from both sides of the ladder 1 to maintain the stability of the safety protection vehicle 2 .

[0036] An inner groove 23 running through the upper and lower parts is provided on the side of the safety protection vehicle 2 facing the ladder 1, and the inner groove 23 is buckled on the outside of the ladder 1. Limiting sliders A21 along the moving direction of the ladder 1 are fixed on both sides of the inner wall of the inner groove 23. An axial limiting slide groove 13 is provided on the side wall of the ladder 1. The limiting slider A21 is slidably connected to the inside of the limiting slide groove 13. The sliding connection between the limiting slider A21 and the limiting slide groove 13 enables the safety protection vehicle 2 to move only in the vertical direction to avoid falling off the ladder 1.

[0037] The bottom of the safety protection vehicle 2 is connected to a resistance mechanism 3 through a pulling assembly 4. The resistance mechanism 3 moves upward synchronously with the safety protection vehicle 2 on the ladder 1. A hanging ring 32 is provided at the bottom of the resistance mechanism 3, and a safety rope is tied to the hanging ring 32. A limiting slider B31 is fixed to the position of the resistance mechanism 3 corresponding to the limiting slide groove 13. The limiting slider B31 is also slidably connected to the inside of the limiting slide groove 13, and the resistance mechanism 3 also only moves in the vertical direction.

[0038] The pulling assembly 4 includes two rubber resistance sleeves 41 respectively located inside the limiting slide grooves 13 on both sides, and the upper and lower ends of the rubber resistance sleeve 41 are fixed with connecting seats 43, through holes are provided on the connecting seats 43, and the upper and lower connecting seats 43 are fixedly connected with the corresponding limiting sliders A21 and limiting sliders B31 respectively by bolts; the rubber resistance sleeve 41 is a cylindrical structure, and its outer wall is attached to the inner wall of the limiting slide groove 13 when the rubber resistance sleeve 41 is in a straight position, and the rubber resistance sleeve 41 can be stretched and compressed, and deformed according to the distance between the safety protection vehicle 2 and the resistance mechanism 3 to adapt to the working environment; a plurality of pulling steel cables 42 are passed through the interior of the rubber resistance sleeve 41, and the two ends of the pulling steel cables 42 are fixed on the connecting seats 43; when the safety protection vehicle 2 moves upward When the safety protection vehicle 2 moves, the pulling action of the pulling component 4 causes the resistance mechanism 3 to move upward synchronously; when the safety protection vehicle 2 moves downward, due to the friction between the limit slider and the limit slide groove, the resistance mechanism 3 is relatively light and cannot overcome the resistance and fall freely downward, while the safety protection vehicle 2 is relatively large and can move downward, thereby reducing the distance between the safety protection vehicle 2 and the resistance mechanism 3. When the safety protection vehicle 2 and the resistance mechanism 3 approach each other, the rubber resistance sleeve 41 is squeezed and expands and twists, filling the limit slide groove 13, generating pressure on the inner wall of the limit slide groove 13, increasing the friction between the inner wall of the limit slide groove 13, thereby hindering and slowing down the safety protection vehicle 2, and facilitating the safe and stable downward movement of the safety protection vehicle 2 on the ladder 1.

[0039] The safety vehicle 2 always provides safety protection for personnel during the climbing process. Before climbing, the safety vehicle 2 is controlled to move upward to a suitable height, and is hung on the cross bar 11 by the hanging part 26 to keep the position of the safety vehicle 2 fixed. The safety rope is hung on the safety vehicle 2, and the climbing staff uses the safety rope to provide safety protection; after the power maintenance, the staff climbs down again under the protection of the safety rope. The staff remotely operates at the bottom of the tower to make the hanging part 26 enter the storage chamber 25. The safety vehicle 2 loses its supporting function and can fall along the ladder 1 under the action of gravity. In order to avoid the impact of the safety vehicle 2 during the free fall, the safety vehicle 2 is decelerated by the resistance mechanism 3 and the pulling component 4 to prevent the safety vehicle 2 from falling. At this time, the staff pulls the safety rope on the ground to make the resistance mechanism 3 gradually move downward, so that the falling speed of the safety vehicle 2 is artificially controlled to ensure the safety of falling to the bottom.

[0040] The safety protection vehicle 2 can not only provide support for the safety rope, but also assist the staff in transporting maintenance equipment, so that the staff can climb with light equipment, further improving the safety during climbing.

[0041] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A climbing device for power maintenance, comprising a ladder (1) fixed on an iron tower and a plurality of cross bars (11) for climbing, wherein the plurality of cross bars (11) are evenly and equidistantly distributed on both sides of the ladder (1), characterized in that: The invention also comprises a safety protection vehicle (2), wherein a remote-controlled driving mechanism (24) is arranged inside the safety protection vehicle (2), and the driving mechanism (24) drives the safety protection vehicle (2) to move upward along the ladder (1), and the safety protection vehicle (2) can be hung on any crossbar (11) to keep the position fixed, and the safety protection vehicle (2) at this position is simultaneously hung on the crossbars (11) on both sides; The bottom of the safety protection vehicle (2) is connected to a resistance mechanism (3) via a pulling assembly (4); the resistance mechanism (3) moves upward synchronously with the safety protection vehicle (2) on the ladder (1); and a safety rope used by climbers is tied to the bottom of the resistance mechanism (3); When the safety protection vehicle (2) moves downward, the pulling assembly (4) is squeezed between the safety protection vehicle (2) and the resistance mechanism (3) to slow down the downward movement of the safety protection vehicle (2), and the safety rope at the bottom is used to pull the resistance mechanism (3) to move the safety protection vehicle (2) downward.

2. A climbing device for power maintenance according to claim 1, characterized in that: The side wall of the safety protection vehicle (2) facing the ladder (1) is provided with a storage chamber (25) corresponding to the crossbar (11); a hanging part (26) is rotatably arranged in the storage chamber (25) via a horizontal rotating shaft (29); the hanging part (26) is turned over along a vertical plane in the storage chamber (25); the hanging part (26) is an L-shaped structure; an electric limiting part (27) parallel to the rotating shaft (29) is arranged in the storage chamber (25); when the hanging part (26) is in a horizontal position, the electric limiting part (27) contacts the upper surface of the hanging part (26) to support the hanging part (26) to maintain a horizontal position; a reset mechanism (28) is arranged at one end of the hanging part (26) located in the storage chamber (25); the reset mechanism (28) pushes the hanging part (26) to rotate.

3. A climbing device for power maintenance according to claim 2, characterized in that: When the safety protection vehicle (2) moves upward, the hooking portion (26) maintains a horizontal position, and the hooking portion (26) moves upward and is blocked by the cross bar (11) and rotates counterclockwise.

4. A climbing device for electric power maintenance according to claim 2, characterized in that: The reset mechanism (28) comprises a fixed plate (281), a guide rod (282), a reset spring (283) and an abutting movable plate (284); the fixed plate (281) is fixed on the inner wall of the storage chamber (25); the abutting movable plate (284) is arranged parallel to the lower side of the fixed plate (281); a vertical guide rod (282) is fixedly connected to the abutting movable plate (284); the guide rod (282) slides through the fixed plate (281); a reset spring (283) is sleeved on the outer side of the guide rod (282); the lower end of the reset spring (283) is fixedly connected to the abutting movable plate (284), and the upper end is fixedly connected to the fixed plate (281); and the reset spring (283) pushes the abutting movable plate (284) to generate pressure acting on the surface of the horizontal hanging part (26).

5. A climbing device for electric power maintenance according to claim 1, characterized in that: The safety protection vehicle (2) is provided with an inner groove (23) which runs through the upper and lower parts on the side facing the ladder (1), and the inner groove (23) is buckled on the outside of the ladder (1). Limiting slide blocks A (21) along the moving direction of the ladder (1) are fixed on both sides of the inner wall of the inner groove (23). A limiting sliding groove (13) along the axial direction is provided on the side wall of the ladder (1), and the limiting sliding block A (21) is slidably connected inside the limiting sliding groove (13).

6. A climbing device for electric power maintenance according to claim 5, characterized in that: The resistance mechanism (3) is provided with a limit slider B (31) fixed at a position corresponding to the limit slide groove (13), and the limit slider B (31) is also slidably connected inside the limit slide groove (13).

7. A climbing device for electric power maintenance according to claim 6, characterized in that: The pulling assembly (4) includes two rubber resistance sleeves (41) respectively located inside the limiting slide grooves (13) on both sides. The upper end and the lower end of the rubber resistance sleeve (41) are fixed with a connecting seat (43), which are respectively fixedly connected to the corresponding limiting slider A (21) and the limiting slider B (31). When the safety protection vehicle (2) and the resistance mechanism (3) approach each other, the rubber resistance sleeve (41) is squeezed and expands and twists, thereby generating pressure on the inner wall of the limiting slide groove (13).

8. A climbing device for electric power maintenance according to claim 7, characterized in that: The rubber resistance sleeve (41) is a cylindrical structure, and when the rubber resistance sleeve (41) is in a straight state, its outer wall is attached to the inner wall of the limiting slide groove (13); a plurality of pulling steel cables (42) are passed through the interior of the rubber resistance sleeve (41), and the two ends of the pulling steel cables (42) are fixed on the connecting seat (43).

9. A climbing device for electric power maintenance according to claim 8, characterized in that: A hanging ring (32) is fixedly connected to the bottom of the resistance mechanism (3), and a safety rope is connected to the hanging ring (32).

10. A climbing device for electric power maintenance according to claim 1, characterized in that: A plurality of fixing ears (14) are fixed on the side wall of the ladder (1) for fixing the ladder (1) on the iron tower. A walking track (12) is provided along the axial direction on the side wall of the ladder (1) facing the safety protection vehicle (2). The driving mechanism (24) extends into the walking track (12) and travels on the inner wall of the walking track (12).

Images