Method for using power maintenance ladder for pole climbing

Abstract

The present application relates to the technical fields of electric power maintenance, electric power maintenance ladder, including: ladder body; Ladder body is composed of main ladder and vice ladder which are hinged to each other, the lower part of main ladder is provided with an operator, the upper part of main ladder is provided with a folding sliding block, the folding sliding block is provided with an angle adjusting electric cylinder which is electrically connected with the operator, the stroke end of the angle adjusting electric cylinder is hinged to the vice ladder, the vice ladder is provided with a battery which is electrically connected with the operator, the end part of the vice ladder is provided with a distance adjusting electric cylinder which is electrically connected with the operator, the end part of the distance adjusting electric cylinder is provided with a rear end clamp, the stroke end of the distance adjusting electric cylinder is provided with a supporting leg, the supporting leg is provided with a front end clamp, and the end part of the supporting leg is provided with an electromagnet; Therefore, the electric power maintenance ladder forms a 'factory' shape or is fixed on a magnetic vertical surface. The advantages are: the maintenance position that cannot be reached by traditional ladders is obtained through horizontal adjustment and angle adjustment, the stability of climbing the wire pole and the iron vertical surface is improved through the clamp and the electromagnet, and the safety performance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power maintenance, in particular to a power maintenance ladder for climbing poles and a use method thereof. BACKGROUND

[0002] In power maintenance, it is often necessary to maintain electrical equipment and power supply lines located at a high position. A commonly used climbing tool is a maintenance ladder. The maintenance ladder is leaned against a support such as a wall, and a maintenance worker climbs onto the maintenance ladder to maintain the electrical equipment above.

[0003] Traditional maintenance ladders, whether straight, folding or telescopic, need to be stretched out for use. The bottom end of the ladder is fully fixed to the ground, and the upper end of the ladder is placed near the equipment to be maintained for use. The working range of the maintenance worker is very limited due to the restriction of the ladder. It is difficult to simultaneously meet the needs of height and horizontal distance, and it is necessary to reach out to work, which increases the labor intensity and greatly increases the probability of danger during the maintenance process. The use of a maintenance platform can solve these problems, expand the working range, and improve safety. However, the maintenance platform is often large in size, high in cost, and heavy, which makes transportation inconvenient. It is not convenient to carry it with the vehicle when going out, and it is also not convenient to use in a small space. When using a traditional ladder to climb a power pole, the surface of the power pole is a circular arc, which makes the ladder unstable and prone to slipping. Even if the new ladder has a circular arc-shaped non-slip rubber, it can only play a certain role. If the maintenance worker makes a large movement or it is a windy day, it is difficult to ensure the reliability of the ladder. In addition, the traditional ladder cannot reach the maximum height when climbing the power pole, because the maintenance worker cannot climb to the highest step due to the need for ladder support. In order to meet the maintenance needs, it is often necessary to carry a ladder that is too long. Therefore, it is necessary to design a climbing tool that combines the advantages of ladders and maintenance platforms, a power maintenance ladder that is small and portable, can provide a large safe working space at a high place, can flexibly adjust the working range, and can firmly climb the power pole.

[0004] Content of the present application

[0005] The purpose of the present application is to provide a power maintenance ladder for climbing poles and a use method thereof, which solves the above-mentioned problems in the prior art. The present application adopts two adjustable-angle ladders to quickly build a miniature work platform, which has the characteristics of quick folding and unfolding, lightness and smallness, stability and reliability, and flexible adjustment of the working range.

[0006] The technical scheme provided by the present application is a use method of a power maintenance ladder for climbing poles.

[0007] The power maintenance ladder comprises:

[0008] The utility model relates to a ladder body (1), the ladder body (1) is by the mutual hinge of end part main ladder (11), vice ladder (12) is composed, the lower part of main ladder (11) is provided with operator (9), the upper portion of main ladder (11) is provided with folding slider (8), be provided with with operator (9) electrical connection's angle adjusting electric cylinder (2) on folding slider (8), the stroke end of angle adjusting electric cylinder (2) is hinged with vice ladder (12), vice ladder (12) inside is provided with with operator (9) electrical connection's battery (10), vice ladder (12) end is provided with with operator (9) electrical connection's distance adjusting electric cylinder (3), the distal end of distance adjusting electric cylinder (3) is fixedly provided with rear end clamping device (4), the stroke end of distance adjusting electric cylinder (3) is provided with support foot (6), be provided with front end clamping device (5) on support foot (6), the distal end of support foot (6) is provided with;

[0009] The utility model relates to a ladder body (1), the ladder body (1) is by the mutual hinge of end part main ladder (11), vice ladder (12) is composed, the lower part of main ladder (11) is provided with operator (9), the upper portion of main ladder (11) is provided with folding slider (8), be provided with with operator (9) electrical connection's angle adjusting electric cylinder (2) on folding slider (8), the stroke end of angle adjusting electric cylinder (2) is hinged with vice ladder (12), vice ladder (12) inside is provided with with operator (9) electrical connection's battery (10), vice ladder (12) end is provided with with operator (9) electrical connection's distance adjusting electric cylinder (3), the distal end of distance adjusting electric cylinder (3) is fixedly provided with rear end clamping device (4), the stroke end of distance adjusting electric cylinder (3) is provided with support foot (6), be provided with front end clamping device (5) on support foot (6), the distal end of support foot (6) is provided with;

[0010] A1、sliding folding slider (8), rotate vice ladder (12), make main ladder (11) and vice ladder (12) approach straight line, lie on the ground, place in the root of telegraph pole;

[0011] A2, control operator (9), make the stroke end of distance adjusting electric cylinder (3) elongation, through support foot (6) with one end of front end clamping device (5) is taken off and rotates around the other end, moves the maintenance ladder, makes the root of telegraph pole close to rear end clamping device (4), rotates front end clamping device (5) to the original position, and through support foot (6) fixed front end clamping device (5), control operator (9), make the stroke end of distance adjusting electric cylinder (3) retract, until rear end clamping device (4), front end clamping device (5) embrace in the root of telegraph pole, and leave the interval;

[0012] A3, through main ladder (11) lifts vice ladder (12), simultaneously, control operator (9) adjusts angle adjusting electric cylinder (2), until the distal end of vice ladder (12) reaches the construction position on telegraph pole, control operator (9), make the stroke end of distance adjusting electric cylinder (3) retract, and rear end clamping device (4), front end clamping device (5) clamp telegraph pole, at this time, vice ladder (12) is in horizontal state, main ladder (11) is in inclined state.

[0013] Further, the folding slider (8) is provided with a cavity (81) on the upper portion, the cavity (81) is used to be sleeved on the main ladder (11), the inner side of the folding slider (8) is provided with a first locking pin hole (83) communicated with the cavity (81), the first locking pin hole (83) is provided with a telescopic locking pin (84), the locking pin (84) is protruded inward, the main ladder (11) is provided with a second locking pin hole (111) matched with the first locking pin hole (83);

[0014] In step A3, when the control operator (9) adjusts the angle of the angle adjustment electric cylinder (2), the folding slider (8) slides on the main ladder (11), and when the first locking pin hole (83) is aligned with the second locking pin hole (111), the locking pin (84) is inserted into the second locking pin hole (111), so that the folding slider (8) is locked.

[0015] Further, the middle part of the rear end clamp (4) is provided with an arc-shaped first clamping part (41), and the middle part of the front end clamp (5) is provided with an arc-shaped second clamping part (51), and the first clamping part (41) and the second clamping part (51) are oppositely arranged to tightly hold the electric pole when they are close to each other.

[0016] Further, the two sides of the first clamping part (41) on the rear end clamp (4) are symmetrically provided with planes (43), the planes (43) are provided with bosses (44), the centers of the bosses (44) are provided with holes A (45), the cross sections of the holes A (45) are provided with steps, and the holes A (45) are respectively inserted into the end of the distance adjustment electric cylinder (3) and the stroke end of the distance adjustment electric cylinder (3), so that the end of the distance adjustment electric cylinder (3) is fixedly connected with the rear end clamp (4), and the stroke end of the distance adjustment electric cylinder (3) is movably connected with the rear end clamp (4).

[0017] Further, the two sides of the second clamping part (51) on the front end clamp (5) are provided with right end faces (53) and left end faces (55), the right end faces (53) are provided with holes B (54), the holes B (54) are rotatably sleeved on the supporting legs (6), the left end faces (55) are provided with half holes A (551) and clamp movable blocks (56), the clamp movable blocks (56) are hingedly connected with the left end faces (55), the clamp movable blocks (56) are provided with half holes B (561), the half holes B (561) are matched with the half holes A (551) and are sleeved on the supporting legs (6).

[0018] Further, the left end faces (55) are provided with arc-shaped protrusions (552), the middle parts of the arc-shaped protrusions (552) are provided with open slits (553), the slits (553) are used to insert the clamp movable blocks (56), and the arc-shaped protrusions (552) are provided with movable block first connecting holes (554).

[0019] The left end faces (55) on one side of the half holes A (551) are provided with first fastening screw holes (557).

[0020] Further, the clamping device movable block (56) is provided with a connecting tongue (564) protruding into the gap (553), and the side of the connecting tongue (564) is provided with a circular arc surface (565). A movable block second connecting hole (566) is provided through the connecting tongue (564) and has a common center axis with the movable block first connecting hole (554).

[0021] The clamping device movable block (56) is provided with a second fastening screw hole (567) on the side away from the connecting tongue (564), and the second fastening screw hole (567) has a common center axis with the first fastening screw hole (557) and is screwed with the mounting bolt.

[0022] Further, the support leg (6) comprises:

[0023] The support leg shaft (61) is fixedly connected to the stroke end of the distance adjustment electric cylinder (3), and is provided with a small diameter (611) and a large diameter (612). The support leg sleeve (62) is fixedly arranged on the small diameter (611), and the space between the support leg sleeve (62) and the large diameter (612) is provided with a receiving hole A (45) and a half hole A (551) / half hole B (561). The end of the support leg shaft (61) is fixedly provided with an electromagnet (63) electrically connected to the operator (9).

[0024] Further, in step A2, the mounting bolt is removed, the left end surface (55) and the clamping device movable block (56) are separated, the front end clamping device (5) is rotated around the hole B (54) of the right end surface (53), at this time, the half hole A (551) and the half hole B (561) are opened, and the left end surface (55) is pulled out from the space between the support leg sleeve (62) and the large diameter (612), so that the electric pole root is inserted.

[0025] Further, in step A2, the front end clamping device (5) is rotated around the hole B (54) of the right end surface (53), until the half hole A (551) of the left end surface (55) on the front end clamping device (5) is inserted into the space between the support leg sleeve (62) and the large diameter (612), the clamping device movable block (56) is rotated, until the half hole B (561) is inserted into the space between the support leg sleeve (62) and the large diameter (612) and forms a circular hole with the half hole A (551), and the left end surface (55) and the clamping device movable block (56) are fixed by the mounting bolt.

[0026] Further, B1, the folding sliding block (8) on the sliding main ladder (11), rotates the auxiliary ladder (12), so that the first locking pin hole (83) and the second locking pin hole (111) have a common center axis, the locking pin (84) is inserted into the second locking pin hole (111), and the folding sliding block (8) is locked.

[0027] B2, control the operator (9) to make the electromagnet (63) non-magnetic, lift the maintenance ladder and lean on the magnetic surface near the equipment to be maintained, make the electromagnet (63) contact the magnetic surface;

[0028] B3, control the operator (9) to adjust the angle adjusting cylinder (2) and move the maintenance ladder to the construction position, control the operator (9) to make the electromagnet (63) magnetic and attract the magnetic surface;

[0029] B4, control the operator (9) to adjust the distance adjusting cylinder (3) and move the maintenance ladder to the appropriate horizontal distance, and then the maintenance personnel can climb the work.

[0030] The design scheme of the present application has the following advantages:

[0031] By adjusting the length of the angle adjusting cylinder, the included angle between the main ladder and the auxiliary ladder is changed, so that the auxiliary ladder can be supported at any height reached by the ladder, and the maintenance personnel can easily obtain the appropriate working height as long as the bottom end of the main ladder is firmly fixed without slipping;

[0032] By adjusting the distance adjusting cylinder, the maintenance personnel standing on the main ladder can obtain the adjustment of the horizontal distance, and the hands of the maintenance personnel can reach the position that the traditional ladder cannot reach;

[0033] When climbing the pole, the two clamping parts tightly clamp the pole, greatly improving the safety of the pole climbing operation, avoiding the possibility of ladder slipping off the pole and overturning, and increasing the safe operation height through the reliable auxiliary ladder;

[0034] When the ladder relies on the iron surface, the two strong magnetic magnets attract the iron surface, which can increase the stability of the ladder, and the use of strong magnets can make the ladder not need to choose a flat surface to rely on, but only rely on the magnets. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a general schematic diagram of the present application;

[0036] Figure 2 It is a schematic diagram of the main component structure of the present application;

[0037] Figure 3 It is a schematic diagram of the folding slider 8 structure;

[0038] Figure 4 It is a schematic diagram of the front end clamp 5;

[0039] Figure 5 It is a detailed structure diagram of the rear end clamp 4;

[0040] Figure 6 It is a detailed structure diagram of the front end clamp 5;

[0041] Figure 7 Structure diagram of movable block 56 of clamping device;

[0042] Figure 8 Structure diagram of support leg shaft 61;

[0043] Figure 9 Structure diagram of support leg 6;

[0044] Figure 10 Structure diagram of battery groove 121 and battery 10. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0046] The present application provides a power maintenance ladder for pole climbing, which comprises a ladder body 1, an angle adjusting electric cylinder 2, a distance adjusting electric cylinder 3, a rear end clamping device 4, a front end clamping device 5, a support leg 6, a folding sliding block 8 and an operator 9.

[0047] The ladder body 1 comprises a main ladder 11 at the lower end and a sub-ladder 12 at the upper end, the main ladder 11 and the sub-ladder 12 are rotationally connected, and the length of the sub-ladder 12 is less than that of the main ladder 11.

[0048] The angle adjusting electric cylinder 2 has two, and the movable cylinders of the angle adjusting electric cylinder 2 are respectively hinged to two corresponding vertical arms of the sub-ladder 12.

[0049] The folding sliding block 8 is slidingly connected to two corresponding vertical arms of the main ladder 11, and the fixed cylinders of the two angle adjusting electric cylinders 2 are respectively hinged to the two folding sliding blocks 8.

[0050] One end of the vertical arm of the sub-ladder 12 is fixedly connected to the fixed cylinder mounting seat 33 of the distance adjusting electric cylinder 3, and the distance adjusting electric cylinder 3 has two and is symmetrically arranged on the two vertical arms of the sub-ladder 12.

[0051] The fixed cylinder of the distance adjusting electric cylinder 3 is fixedly connected to the rear end clamping device 4, and the rear end clamping device 4 is provided with an arc-shaped first clamping part 41, which is used for clamping a pole object.

[0052] The support leg 6 has two and is respectively fixedly connected to the movable cylinders of the distance adjusting electric cylinder 3.

[0053] The front end clamp 5 comprises an arc-shaped second clamping part 51, the two ends of the second clamping part 51 are flat, one end of the front end clamp 5 is rotationally connected with one of the support feet 6, and the other end of the front end clamp 5 is detachably connected with the other support foot 6.

[0054] The angle adjusting electric cylinder 2 and the distance adjusting electric cylinder 3 are electrically connected with the operator 9.

[0055] In the embodiment, the folding slider 8 has a cavity 81 inside, the shape and size of the cavity 81 are the same as the vertical arm section of the main ladder 11, the inner side of the cavity 81 is provided with a slide 82, the slide 82 cooperates with the vertical arm of the main ladder 11, and the folding slider 8 slides on the vertical arm of the main ladder 11 in single degree of freedom; the outer side of the folding slider 8 is hingedly connected with the fixed cylinder of the angle adjusting electric cylinder 2; the folding slider 8 is further provided with a first locking pin hole 83 at the middle position, the first locking pin hole 83 is provided with a pluggable locking pin 84; the vertical arm of the main ladder 11 is provided with a second locking pin hole 111 near the upper position, the second locking pin hole 111 corresponds to the position of the first locking pin hole 83.

[0056] In the embodiment, the rear end clamp 4 is symmetrically provided with a flat surface 43 at each end, the flat surface 43 is fixedly provided with a boss 44, the boss 44 has a hole A45 at the center, the hole A45 has a stepped cross section, the front end diameter cooperates with the diameter of the fixed cylinder 31 of the distance adjusting electric cylinder 3, and the rear end diameter cooperates with the movable cylinder 32 of the distance adjusting electric cylinder 3; the distance adjusting electric cylinder 3 passes through the hole A45, the fixed cylinder 31 is fixedly connected with the boss 44, and the movable cylinder 32 is slidingly connected with the boss 44.

[0057] In the embodiment, the support foot 6 comprises a support foot shaft 61, a support foot sleeve 62 and an electromagnet 63; the support foot shaft 61 has a hollow structure inside, used for accommodating and fixing the movable cylinder 32 of the distance adjusting electric cylinder 3, the support foot shaft 61 is provided with a stepped structure outside, respectively having a small diameter 611 and a large diameter 612, the support foot sleeve 62 is fixedly installed on the small diameter 611, a gap 64 is left between the support foot shaft 61 and the support foot sleeve 62, and the gap 64 is used for rotationally connecting the front end clamp 5 with the support foot 6; the electromagnet 63 is fixedly arranged at the end of the support foot shaft 61, the electromagnet 63 is electrically connected with the operator 9, and the electromagnet 63 is of the type of attracting when power off and releasing when power on.

[0058] In the embodiment, the front end clamp 5 is respectively provided with a right end surface 53 and a left end surface 55 at the two ends, the right end surface 53 is provided with a hole B54, the diameter of the hole B54 cooperates with the small diameter 611 of the support foot shaft 61; the left end surface 55 is provided with a half hole A551, the left end surface 55 is further rotationally connected with a clamp movable block 56, the clamp movable block 56 is provided with a half hole B561; the clamp movable block 56 cooperates with the left end surface 55 of the front end clamp 5.

[0059] The left end surface 55 is provided with an arc-shaped protrusion 552, a gap 553 is arranged in the arc-shaped protrusion 552, and a movable block connecting hole 554 is arranged on the arc-shaped protrusion 552; the movable block 56 is correspondingly provided with a connecting tongue 564, the side surface of the connecting tongue 564 is provided with a circular arc surface 565, and a connecting hole 566 is arranged on the connecting tongue 564.

[0060] A fillet 563 is arranged at the connecting position between the upper surface 562 of the movable block 56 and the half hole B 561, and the fillet 563 is used to prevent the movable block 56 from interfering with the support shaft during movement.

[0061] The connecting tongue 564 of the movable block 56 is inserted into the gap 553 of the left end surface 55 of the front end clamp 5, and is hinged through the movable block first connecting hole 554 and the movable block second connecting hole 566.

[0062] A first fastening screw hole 557 is arranged at the leftmost position of the left end surface 55 of the front end clamp 5, a second fastening screw hole 567 is arranged at the leftmost corresponding position of the movable block 56, the axis of the first fastening screw hole 557 and the second fastening screw hole 567 coincides, and a hand screw is arranged.

[0063] In the embodiment, the high-pressure alarm 7 is arranged at the highest position of the main ladder 11.

[0064] In the embodiment, a hollow battery groove 121 is arranged in the vertical arm of the auxiliary ladder 12, and the battery 10 is arranged in the battery groove 121; the battery 10 is detachably connected with the battery groove 121, and the battery groove 121 is provided with a detachable battery cover 122 with a waterproof rubber ring.

[0065] In the embodiment, the rated voltage of the angle adjusting electric cylinder 2, the distance adjusting electric cylinder 3 and the electromagnet 63 is 24V direct current; the battery 10 is a 24V storage battery, and the operator 9 is provided with an operation button, a charging socket and an electric quantity indicating lamp.

[0066] During use, the length of the extension of the angle adjusting electric cylinder 2 and the length of the extension of the distance adjusting electric cylinder 3 can be adjusted by the button of the operator 9, and the on-off of the power supply of the electromagnet 63 can be changed to control the attraction and release of the electromagnet 63; in the power-on state, the electromagnet 63 is in the release state, and in the power-off state, the electromagnet 63 is in the attractable state; after use, the angle adjusting electric cylinder 2 and the distance adjusting electric cylinder 3 are retracted to the shortest by the operator 9, the locking pin 84 is pulled out, and the folding sliding block 8 is slid downward to make the main ladder 11 and the auxiliary ladder 12 close to each other to reduce the transportation volume.

[0067] The application provides a use method of a power maintenance ladder for pole climbing, which comprises the following steps:

[0068] A1: sliding folding slider 8, rotating auxiliary ladder 12, making main ladder 11 and auxiliary ladder 12 approach straight line, laying on the ground, placing at the root of the electric pole;

[0069] A2: using operator 9, making distance adjusting electric cylinder 3 extend, extending to slightly larger than the diameter of the root of the electric pole; unscrewing the hand screw on front end clamp 5, counterclockwise rotating clamp movable block 56, making the left end of front end clamp 5 open, clockwise rotating front end clamp 5, rotating to 180°, moving the maintenance ladder, making the root of the electric pole close to rear end clamp 4, located in the center of first clamping part 41, counterclockwise rotating front end clamp 5 to the home position, counterclockwise rotating clamp movable block 56, tightening the hand screw; using operator 9, making distance adjusting electric cylinder 3 shorten, shortening to stop when the electric pole is located between first clamping part 41 and second clamping part 51 and has not been clamped, at this time, the electric pole and rear end clamp 4 and front end clamp 5 remain a small amount of spacing;

[0070] A3: lifting auxiliary ladder 12, after releasing the hand, auxiliary ladder 12 inclines and temporarily locks on the electric pole without sliding, at this time, holding main ladder 11, using operator 9 to adjust angle adjusting electric cylinder 2, making folding slider 8 slide on the main ladder, sliding to first locking pin hole 83 and second locking pin hole 111 aligning, locking pin 84 falling into the two locking pin holes, making folding slider 8 lock;

[0071] A4: holding with hand, one side making main ladder 11 rise, the other side using operator 9 to adjust angle adjusting electric cylinder 2, making auxiliary ladder 12 keep approximately horizontal, until main ladder 11 is completely vertical or reaches the operation height, adjusting auxiliary ladder 12; adjusting distance adjusting electric cylinder 3, making first clamping part 41 and second clamping part 51 tightly clamp the electric pole; the maintenance personnel can climb to work, in order to further ensure safety, the most suitable working range of the maintenance personnel is stepping on main ladder 11 and relying on the connection between main ladder 11 and auxiliary ladder 12; in order to reach the maximum working height, the maintenance personnel can step on auxiliary ladder 12 and rely on the electric pole under the condition of hanging the safety belt, at this time, the ladder is maximized, reaching a higher safety height than the traditional ladder.

[0072] The application also provides another use method of the electric maintenance ladder for climbing the pole, comprising the following steps:

[0073] B1: sliding folding slider 8, rotating auxiliary ladder 12, making first locking pin hole 83 and second locking pin hole 111 aligning, locking pin 84 falling into the two locking pin holes, making folding slider 8 lock;

[0074] B2: using operator 9 to make electromagnet 63 lose magnetism, holding with hand, making the maintenance ladder close to the iron vertical surface near the equipment to be maintained, electromagnet 63 contacting the iron vertical surface;

[0075] B3: Adjust the angle adjusting electric cylinder 2 using the operator 9, move the ladder to the appropriate height, disconnect the electromagnet 63 circuit, and the electromagnet 63 is powered off to restore the magnetic property to firmly suck the facade;

[0076] B4: Adjust the distance adjusting electric cylinder 3 using the operator 9, and move the ladder to the appropriate horizontal distance; the maintenance personnel can climb to work. To further ensure safety, the most appropriate working range for the maintenance personnel is to step on the main ladder 11 and rely on the connection between the main ladder 11 and the auxiliary ladder 12. To achieve the maximum working distance, the maintenance personnel can step on the auxiliary ladder 12 under the condition that the bottom end of the main ladder 11 is firmly in contact with the ground and has a firm support and the safety belt is tied. At this time, the ladder is maximally utilized, a wider working distance than the traditional ladder is obtained, and positions that cannot be reached by the traditional ladder are reached.

Claims

1. The use method of the power maintenance ladder for climbing poles, characterized in that: the power maintenance ladder comprises: a ladder body (1) composed of a main ladder (11) and an auxiliary ladder (12) hinged at the ends, the lower part of the main ladder (11) is provided with an operator (9), the upper part of the main ladder (11) is provided with a folding slider (8), the folding slider (8) is provided with an angle adjusting electric cylinder (2) electrically connected with the operator (9), the stroke end of the angle adjusting electric cylinder (2) is hinged with the auxiliary ladder (12), the inside of the auxiliary ladder (12) is provided with a battery (10) electrically connected with the operator (9), the end of the auxiliary ladder (12) is provided with a distance adjusting electric cylinder (3) electrically connected with the operator (9), the end of the distance adjusting electric cylinder (3) is fixedly provided with a rear end clamp (4), the stroke end of the distance adjusting electric cylinder (3) is provided with a supporting leg (6), and the supporting leg (6) is provided with a front end clamp (5); the middle part of the rear end clamp (4) is provided with an arc-shaped first clamping part (41), the middle part of the front end clamp (5) is provided with an arc-shaped second clamping part (51), and the first clamping part (41) and the second clamping part (51) are oppositely arranged to tightly hold the power pole when they are close to each other; the two sides of the second clamping part (51) on the front end clamp (5) are provided with a right end face (53) and a left end face (55), the right end face (53) is provided with a hole B (54), the hole B (54) is rotatably sleeved on the supporting leg (6), the left end face (55) is provided with a half hole A (551) and a clamp movable block (56), the clamp movable block (56) is hinged with the left end face (55), the clamp movable block (56) is provided with a half hole B (561), and the half hole B (561) is matched with the half hole A (551) and is sleeved on the supporting leg (6); the use method of the power maintenance ladder comprises: A1, sliding the folding slider (8), rotating the auxiliary ladder (12), making the main ladder (11) and the auxiliary ladder (12) close to a straight line, and laying them on the ground at the root of the power pole; A2, controlling the operator (9) to make the stroke end of the distance adjusting electric cylinder (3) extend, taking one end of the front end clamp (5) off through the supporting leg (6) and rotating it around the other end, moving the maintenance ladder, making the root of the power pole close to the rear end clamp (4), rotating the front end clamp (5) to the original position, fixing the front end clamp (5) through the supporting leg (6), controlling the operator (9) to make the stroke end of the distance adjusting electric cylinder (3) retract, and until the rear end clamp (4) and the front end clamp (5) embrace the root of the power pole with a certain distance; A3, lifting the auxiliary ladder (12) through the main ladder (11), at the same time, controlling the operator (9) to adjust the angle adjusting electric cylinder (2), until the end of the auxiliary ladder (12) reaches the construction position on the power pole, controlling the operator (9) to make the stroke end of the distance adjusting electric cylinder (3) retract, and the rear end clamp (4) and the front end clamp (5) clamp the power pole, at this time, the auxiliary ladder (12) is in a horizontal state, and the main ladder (11) is in an inclined state.

2. The pole climbing power maintenance ladder use method according to claim 1, characterized in that: the folding slider (8) is provided with a cavity (81) on the upper side for sleeving the main ladder (11), the inner side of the folding slider (8) is provided with a first locking pin hole (83) in communication with the cavity (81), the first locking pin hole (83) is provided with a retractable locking pin (84), the locking pin (84) is protruded inwardly, and the main ladder (11) is provided with a second locking pin hole (111) matched with the first locking pin hole (83); in step A3, when the angle adjusting electric cylinder (2) is adjusted by the control operator (9), the folding slider (8) slides on the main ladder (11), and when the first locking pin hole (83) is aligned with the second locking pin hole (111), the locking pin (84) is inserted into the second locking pin hole (111) to lock the folding slider (8).

3. The pole climbing power maintenance ladder use method according to claim 1, characterized in that: the two sides of the first clamping part (41) of the rear end clamp (4) are symmetrically provided with planes (43), the planes (43) are provided with bosses (44), the bosses (44) are provided with holes A (45) at the centers, the holes A (45) are provided with stepped sections, and the holes A (45) are respectively inserted into the end of the distance adjusting electric cylinder (3) and the stroke end of the distance adjusting electric cylinder (3) to fixedly connect the end of the distance adjusting electric cylinder (3) with the rear end clamp (4) and movably connect the stroke end of the distance adjusting electric cylinder (3) with the rear end clamp (4).

4. The pole climbing power maintenance ladder use method according to claim 1, characterized in that: the left end face (55) is provided with an arc-shaped protrusion (552), the arc-shaped protrusion (552) is provided with an open gap (553) at the center, the gap (553) is used for inserting the clamp movable block (56), and the arc-shaped protrusion (552) is provided with a movable block first connecting hole (554) penetratingly. The left end face (55) on one side of the half-hole A (551) is provided with a first fastening screw hole (557).

5. The pole climbing power maintenance ladder use method according to claim 4, characterized in that: the clamp movable block (56) is protrudedly provided with a connecting tongue (564) inserted into the gap (553), the side surface of the connecting tongue (564) is provided as a circular arc surface (565), the connecting tongue (564) is provided with a movable block second connecting hole (566) penetratingly and sharing the same center axis with the movable block first connecting hole (554); the side of the clamp movable block (56) away from the connecting tongue (564) is provided with a second fastening screw hole (567), the second fastening screw hole (567) shares the same center axis with the first fastening screw hole (557), and a bolt is screwed and installed.

6. The pole climbing power maintenance ladder use method according to claim 4, characterized in that: the support foot (6) comprises: Supporting foot shaft (61) fixedly connected with the stroke end of distance adjusting electric cylinder (3), small diameter (611) and large diameter (612) are arranged on supporting foot shaft (61), supporting foot sleeve (62) is fixedly arranged on small diameter (611), space of containing hole A (45) and half hole A (551) / half hole B (561) is arranged between supporting foot sleeve (62) and large diameter (612), and the end of supporting foot shaft (61) is fixedly provided with electromagnet (63) electrically connected with operator (9).

7. The method of using the power maintenance ladder for pole climbing according to claim 6, characterized in that: In step A2: Remove the mounting bolt, separate the left end face (55) and the clamp movable block (56), rotate the front end clamp (5) around the hole B (54) of the right end face (53), at this time, open the half hole A (551) and the half hole B (561), and pull out the left end face (55) from the space between the supporting foot sleeve (62) and the large diameter (612), and then insert the pole root; Rotate the front end clamp (5) around the hole B (54) of the right end face (53) until the half hole A (551) of the left end face (55) on the front end clamp (5) is clamped into the space between the supporting foot sleeve (62) and the large diameter (612), rotate the clamp movable block (56) until the half hole B (561) is clamped into the space between the supporting foot sleeve (62) and the large diameter (612) and forms a circular hole with the half hole A (551), and then fix the left end face (55) and the clamp movable block (56) by the mounting bolt.

8. The method of using the power maintenance ladder for pole climbing according to claim 7, characterized in that: B1, rotate the folding sliding block (8) on the sliding main ladder (11), make the first locking pin hole (83) and the second locking pin hole (111) have the same center axis, insert the locking pin (84) into the second locking pin hole (111), and lock the folding sliding block (8); B2, control the operator (9) to make the electromagnet (63) have no magnetism, lift the maintenance ladder and lean it against the magnetic guide surface near the equipment to be maintained, and make the electromagnet (63) contact the magnetic guide surface; B3, control the operator (9) to adjust the angle adjusting cylinder (2) and move the maintenance ladder to the working position, and control the operator (9) to make the electromagnet (63) have magnetism and be attracted to the magnetic guide surface; B4, control the operator (9) to adjust the distance adjusting cylinder (3) and move the maintenance ladder to the appropriate horizontal distance, and then the maintenance personnel can climb and work.

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