CN212174401U

CN212174401U - Lifting device for erecting power line

Info

Publication number: CN212174401U
Application number: CN202020792143.1U
Authority: CN
Inventors: 汪春来; 胡景琼; 唐秀梅
Original assignee: Nanjing Xintang Power Engineering Co ltd
Current assignee: Nanjing Xintang Power Engineering Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-12-18
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a power line erects technical field of construction, discloses a power line erects and uses lifting device, including base and the vertical lifting platform that slides and set up on the base, still including the elevating system who is used for controlling the lifting platform to go up and down, set firmly the climbing ladder on the base lateral wall, the top of climbing ladder is connected with the first ladder that increases, the first one end that increases the ladder and the top swivelling joint of climbing ladder, the first other end swivelling joint who increases the ladder has the second to increase the ladder, and the second increases the ladder and the first rotatory face that increases the ladder coincidence just is vertical face, still including being used for fixed second to increase the ladder and the first rotary mechanism who increases ladder rotation angle. The utility model discloses have convenient displacement user to eminence, power line erects the effect that convenience and efficiency of construction are high.

Description

Lifting device for erecting power line

Technical Field

The utility model belongs to the technical field of the technique that power line erect and specifically relates to a power line erects and uses lifting device.

Background

When the power line is erected, an operator needs to be lifted to a certain height, and then the power line is set. In the prior art, lifting displacement is usually realized by a crane or other devices, an operator stands in a workbench, the crane lifts the workbench to a certain height, and the operator operates the workbench again. The crane is connected with the workbench through the hoisting steel cable when hoisting, the position accuracy of hoisting displacement is low, the hoisting operation is troublesome, and the power line is troublesome to erect.

The prior utility model patent document with the publication number of CN207811204U discloses a lifting device for erecting a power line, which comprises a lifting platform, a screw rod, a rotating shaft, a first bevel gear, a bearing seat, a bearing, a base, a vertical rod, a chute, a slide block, a motor seat, a motor and a second bevel gear; a bearing seat is fixedly connected to the central position of the upper surface of the base; a motor base is fixedly connected to the left side of the upper surface of the base; the right side of the upper surface of the base is fixedly connected with a vertical rod; the motor base is fixedly connected with a motor; the bearing block is movably connected with a rotating shaft through a bearing; the outer surface of the rotating shaft is fixedly connected with a first bevel gear; the output shaft of the motor is in shaft connection with a second bevel gear which is meshed with the first bevel gear; the top end of the rotating shaft is fixedly connected with a screw rod; the screw rod is connected in the lifting platform through threads; the upright stanchion is provided with a chute; a sliding block is connected in the sliding groove in a sliding manner; the other end of the sliding block is fixedly connected with the lifting platform.

The user stands on the lifting platform, drives the second bevel gear to rotate through the motor, drives the first bevel gear and the rotating shaft to rotate, and drives the lifting platform to lift through threaded connection. In the lifting process of the lifting platform, a structure in sliding connection with a sliding block and a sliding groove is used for lifting and guiding the lifting platform. When the user shifts to the eminence, need not to use the crane to lift by crane, it is difficult for because the displacement that lifts by crane the position not accurate, and power line erects convenience and power line and erects efficiently.

The above prior art solutions have the following drawbacks: the height of the power line is generally not lower than five meters, and the heights of the upright rods and the lead screws are matched with the height of the power line. When the lifting platform is located the bottom of lift stroke, the user still need climb upwards or shift to the eminence with the help of the instrument, can stand on the lifting platform, and it is troublesome to lift to use, and the efficiency that the power line erect is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a power line erects and uses lifting device, and the person of facilitating the use displacement is to the high department carrying out power line's the work of erectting, and power line erects efficiently.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: electric power line erects and uses lifting device, including base and the vertical lifting platform that slides and set up on the base, still including the elevating system who is used for controlling the lifting platform lift, the climbing ladder has set firmly on the base lateral wall, the top of climbing ladder is connected with the first ladder that increases, the first one end that increases the ladder and the top swivelling joint of climbing ladder, the first other end swivelling joint that increases the ladder has the second to increase the ladder, the second increases the ladder and the first rotatory plane coincidence that increases the ladder and is vertical face, still increases ladder and the first rotary mechanism that increases ladder rotation angle including being used for fixed second.

Through adopting above-mentioned technical scheme, the first revolution mechanic that increases the ladder and the second increases the ladder makes the climbing ladder, first increase the ladder and the second increases the ladder can be by low to high stack use, user's accessible climbing ladder, first increase the ladder and the second increases the ladder by ground displacement to the elevating platform on, or reverse displacement, and then accessible elevating system control elevating platform goes up and down, make things convenient for power line to erect the construction, the efficiency of construction that power line erect is high, first increase the ladder and the second increases the ladder is rotatable to the level and accomodates to the stack under the normality, not because of the damage, the effect that improves the efficiency of construction is stable.

The utility model discloses further set up to: the rotating mechanism comprises a first locking piece arranged on the first heightening ladder along the height direction of the first heightening ladder, the number of the first locking pieces is two, the first locking pieces are symmetrically arranged at two ends of the first heightening ladder, the second heightening ladder is connected with the second locking pieces in a sliding manner along the height direction of the second heightening ladder, the number of the second locking pieces is two, the two second locking pieces are symmetrically arranged at two ends of the second heightening ladder, the first locking pieces and the second locking pieces are arranged in a C shape, the C-shaped bending directions of the two first locking pieces are opposite, the C-shaped bending directions of the two second locking pieces are opposite, the rotating mechanism also comprises a locking component for controlling the sliding of the first locking piece and the second locking piece, rotary mechanism still increases the ladder, first increases the ladder rotation to the second and increases the ladder, first increase the ladder and climb the subassembly of accomodating of ladder horizontal arrangement state including being used for fixed second.

Through adopting above-mentioned technical scheme, need the climbing first increase the ladder and when the second increases the ladder, the first ladder and the second that increases of user's manual rotation increases the ladder, slide through first locking piece of locking subassembly control and second locking piece, block first through first locking piece simultaneously and increase ladder and climbing ladder, block second simultaneously through second locking piece increases the ladder and first increase the ladder, make first locking piece and second locking piece rotation angle fixed, make the climbing ladder, first increase ladder and second increase the state that the vertical stack of ladder set up fixed, reverse operation increases the ladder and through the fixed climbing ladder of storage assembly, first increase ladder and second increase the state that ladder level direction arranged and set up fixed, can accomplish first increase the taking in that increases ladder and second increase the ladder.

The utility model discloses further set up to: the locking subassembly is including setting firmly the first stroke piece on the climbing ladder, the first tip that increases the ladder and be close to the second and increase the ladder has set firmly the second stroke piece, first stroke piece corresponds first locking piece setting, the second stroke piece corresponds second locking piece setting, all set firmly the magnetism that is used for magnetism to inhale fixed first locking piece or second locking piece on first stroke piece and the second stroke piece and inhale the piece.

Through adopting above-mentioned technical scheme, when first stroke piece magnetism is inhaled fixed first locking piece, first locking piece block climbing ladder and the first state that increases the ladder are fixed simultaneously, when second stroke piece magnetism is inhaled fixed second locking piece, the first ladder and the second that increases of second locking piece block simultaneously increase the ladder, the location state of the two can be relieved to manual first locking piece and the second locking piece that slides, and the easy operation and the control that control first locking piece and second locking piece slided are effectual.

The utility model discloses further set up to: accomodate the subassembly including being used for fixed second to increase the ladder, first increase the ladder and the constraint area of the state that the climbing ladder level was arranged and is set up, the quantity in constraint area is two and the symmetry sets up the both sides at the climbing ladder, the one end in constraint area is fixed with the climbing ladder, two the free end in constraint area has set firmly pin thread and box respectively.

Through adopting above-mentioned technical scheme, realize two bundles through pin thread and box and tie up the detachable fixed connection who takes the free end, encircle the first spacing fixed second of butt that increases when increasing the ladder and second through two bundles of ligatures and increase the ladder, first increase ladder and climbing ladder level to arranging the state that sets up, accomodate the convenience.

The utility model discloses further set up to: the lift table top surface is fitted with a contraceptive ring and is equipped with the protection rail, the one end that the protection rail is close to the climbing ladder is opened and is articulated to have a fence door, be provided with on the fence door and be used for fixing the lock on the protection rail with fence door free end.

Through adopting above-mentioned technical scheme, protection rail and rail door effectively prevent that the user from dropping from the lifting platform, and the safety in utilization is better.

The utility model discloses further set up to: the lifting platform is rotatably connected with a release shaft, the axis of the release shaft is horizontal, a suspension rope is wound on the release shaft, one end of the suspension rope is fixed with the release shaft, the other end of the suspension rope is fixed with a throwing basket, and the release shaft is in transmission connection with a release motor.

Through adopting above-mentioned technical scheme, release motor, release axle and suspend in midair the rope and constitute the structure of lifting by crane of throwing in basket, when the lifting platform has shifted to high department, still can realize the material transmission through the lift of throwing in the basket between lifting platform and the ground, remove the trouble of the reciprocal lift of lifting platform from, the efficiency of construction that power line erect is higher.

The utility model discloses further set up to: elevating system is including low first platform and the second platform of high order setting between base and lift platform, link to each other through cutting formula lift between first platform and the base, link to each other through the pneumatic cylinder of vertical setting between first platform and the second platform, swivelling joint has the vertical loop bar of axis on the second platform top surface, the vertical cover in loop bar top is equipped with the lifter, lifter and loop bar threaded connection, the lifter top is fixed with lift platform bottom surface, the loop bar transmission is connected with lifting motor.

Through adopting above-mentioned technical scheme, first platform realizes that the one-level lifts through cutting formula lift, and the second platform realizes that the second grade lifts through the pneumatic cylinder, and the platform that lifts realizes tertiary lifting through lifting motor, loop bar and lifter, and the platform that lifts goes up and down is convenient.

The utility model discloses further set up to: the bottom end of the base is fixedly provided with a walking trolley.

By adopting the technical scheme, the walking trolley enables the horizontal positions of the base and the lifting platform to be conveniently adjusted, and the use is convenient.

To sum up, the utility model discloses a beneficial technological effect does:

1. the portable displacement from the ground to the lifting platform is realized through the foldable climbing ladder, the first height increasing ladder and the second height increasing ladder, the trouble of using additional tools is avoided, and the displacement of the power line erection construction from low to high is convenient;

2. the lifting structure through the throwing basket realizes the material transfer when the lifting platform has shifted to the eminence, and the construction efficiency that the power line erect is higher.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment.

Fig. 2 is a cross-sectional view of a rotary mechanism of a particular embodiment.

Fig. 3 is a schematic diagram of the overall structure of the lifting table according to the embodiment.

In the figure, 1, a base; 11. a traveling trolley; 2. a lifting table; 21. protecting the fence; 22. a fence door; 221. a door lock; 23. releasing the shaft; 231. releasing the motor; 24. a suspension cord; 241. a throwing basket; 25. a stabilizing slot; 3. a lifting mechanism; 31. a first platform; 311. a first guide bar; 312. a second guide sleeve; 32. a second platform; 321. a second guide bar; 322. a lifting rod; 33. a scissor lift; 34. a hydraulic cylinder; 35. a loop bar; 351. lifting a motor; 36. a lifting rod; 41. climbing a ladder; 42. a first heightening ladder; 43. a second heightening ladder; 5. a rotation mechanism; 51. a first locking member; 52. a second lock; 53. a locking assembly; 531. a first stroke block; 532. a second stroke block; 533. a magnetic attraction sheet; 54. a receiving assembly; 541. a binding belt; 542. a male buckle; 543. a female buckle; 6. a dovetail groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a lifting device for erecting power line, including base 1, elevating system 3, lifting platform 2 and walking dolly. The walking trolley 11 is arranged at the bottom of the base 1, wheels of the walking trolley 11 are driven to rotate through a motor, and the walking trolley 11 drives the base 1 to displace on the ground. The lifting mechanism 3 comprises a first platform 31 and a second platform 32 which are arranged between the base 1 and the lifting platform 2, wherein the first platform 31, the second platform 32 and the lifting platform 2 are arranged above the base 1 in sequence from low to high and are vertically and slidably connected with the base 1. A protective fence 21 is arranged on the top surface of the lifting platform 2 in a ring mode, and a fence door 22 is arranged at one end of the protective fence 21.

Referring to fig. 1, a first platform 31 is connected with a base 1 through a scissor lift 33, the top of the base 1 is concave, and the scissor lift 33 and the first platform 31 are both arranged in the concave. The vertical first guide bar 311 that slides and be connected with first platform 31 that sets firmly on base 1, the quantity of first guide bar 311 be four and divide the four corners department of establishing first platform 31, first guide bar 311 vertically runs through first platform 31. The second platform 32 is connected with the first platform 31 through a hydraulic cylinder 34, the hydraulic cylinder 34 is vertically arranged, and the end part of a piston rod of the hydraulic cylinder 34 is fixed with the bottom surface of the second platform 32. The top surface of first platform 31 vertically sets firmly two second guide sleeve, vertically sets firmly second guide bar 321 with the grafting of second guide sleeve on the bottom surface of second platform 32, and first platform 31 and second platform 32 realize vertical sliding connection's structure through the connection of sliding of first guide sleeve and second guide bar 321.

Referring to fig. 1, a loop bar 35 is rotatably coupled to a top surface of the second platform 32, and a rotation surface of the loop bar 35 is horizontal. The vertical cover in loop bar 35 top is equipped with lifter 36, lifter 36 and loop bar 35 threaded connection. The top end of the lifting rod 36 is fixed with the bottom surface of the lifting platform 2, and the sleeve rod 35 is connected with a lifting motor 351 through bevel gear transmission. The top surface of the second platform 32 is connected with the lifting platform 2 through a lifting rod 322, the lifting rod 322 is a telescopic rod structure, and the second platform 32 and the lifting platform 2 guide vertical relative displacement through the telescopic structure of the lifting rod 322.

When a user stands on the lifting platform 2, the first platform 31 is driven to move upwards through the scissor type lifter 33, the second platform 32 is driven to move upwards through the extension and contraction of the piston rod of the hydraulic cylinder 34, the sleeve rod 35 is driven to rotate through the lifting motor 351, and the lifting rod 36 and the lifting platform 2 are driven to move upwards through the threaded connection. By performing the three-stage lifting through the above operation, the user can perform the erecting work of the power line under the protection of the protection fence 21 and the fence door 22. The height of the lifting platform 2 can be reduced by reverse operation, and the walking trolley 11 ensures that the horizontal position of the lifting platform 2 is convenient to adjust.

Referring to fig. 1, a climbing ladder 41, a first height increasing ladder 42 and a second height increasing ladder 43 are provided on the side wall of the base 1 corresponding to the fence door 22, and a stabilizing groove 25 is provided at the end of the lifting table 2. Climbing ladder 41 sets firmly vertically on base 1 lateral wall, and first increase ladder 42's one end and climbing ladder 41 swivelling joint, the other end of first increase ladder 42 and the one end swivelling joint of second increase ladder 43. The first ladder 42, the second ladder 43 and the climbing ladder 41 are connected by hinging, the first ladder 42 and the second ladder 43 are superposed, and the axes of the rotating shafts at the two ends of the first ladder 42 are parallel to the width direction of the first ladder 42. When the first height increasing ladder 42 and the second height increasing ladder 43 are rotated to be vertical and stacked in the order of low to high above the climbing ladder 41, the lifting platform 2 can be moved down to the stable groove 25 to be engaged with the free end of the second height increasing ladder 43.

Referring to fig. 2, the lifting device further comprises a rotation mechanism 5 for fixing the rotation angles of the second height ladder 43 and the first height ladder 42, and the rotation mechanism 5 comprises a first locking member 51, a second locking member 52 and a locking assembly 53. The number of the first locking pieces 51 is two, and the two first locking pieces 51 are symmetrically arranged at both ends of the first heightening ladder 42 in the length direction. The number of the second lock members 52 is two, and the two second lock members 52 are symmetrically disposed at both ends of the second heightening ladder 43 in the length direction. Dovetail grooves 6 connected with the first locking piece 51 or the second locking piece 52 in a sliding mode are formed in two opposite side walls of the first heightening ladder 42 and the second heightening ladder 43, two ends of each dovetail groove 6 are closed, and the lengths and the widths of the first heightening ladder 42, the second heightening ladder 43 and the climbing ladder 41 are equal. The first lock members 51 are arranged in a C shape with opposite bending directions, and the second lock members 52 are arranged in a C shape with opposite bending directions.

Referring to fig. 2, the locking assembly 53 includes a first stroke block 531, a second stroke block 532 and a magnetic attraction piece 533, wherein the first stroke block 531 is fixed on two opposite side walls of the climbing ladder 41, and the second stroke block 532 is fixed on two opposite side walls of the first heightening ladder 42. The number of the magnetic attraction pieces 533 is two, one of the magnetic attraction pieces 533 is fixed on the top surface of the first stroke block 531, the other magnetic attraction piece 533 is fixed on the end surface of the second stroke block 532 close to the hinge point of the first height increasing ladder 42 and the second height increasing ladder 43, and the first locking piece 51 and the second locking piece 52 are both metal pieces which can be attracted by the magnetic attraction pieces 533.

The second of manual rotation increases ladder 43 to the second and increases ladder 43 and first increase ladder 42 and superposes in the direction of height of first increase ladder 42, slides first locking piece 51 to with first stroke piece 531 butt, and then the first ladder 42 of manual rotation increases to first increase ladder 42 and climbing ladder 41 top surface butt, and second locking piece 52 moves down to with second stroke piece 532 butt under the dead weight drive this moment. Second locking piece 52 and first locking piece 51 are all fixed on second stroke piece 532 and first stroke piece 531 because of magnetic adsorption, first locking piece 51 increases ladder 42 and climbing ladder 41 block simultaneously with first this moment, second locking piece 52 increases ladder 42 and second simultaneously and increases ladder 43 block, first locking piece 51 and second locking piece 52 butt are spacing to make first increase ladder 42 and second increase ladder 43's rotation angle fixed, the user can be prolonged climbing ladder 41, first increase ladder 42 and second and increase ladder 43 displacement to lift table 2 department along the way.

Referring to fig. 2, the rotating mechanism 5 further includes a receiving assembly 54, and the receiving assembly 54 includes a binding strip 541, a male buckle 542 and a female buckle 543. The number of the binding bands 541 is two, and the two binding bands 541 are respectively arranged at two sides of the climbing ladder 41. One end of the binding belt 541 is fixed with the climbing ladder 41, and the male buckle 542 and the female buckle 543 are respectively fixed on the free end of the binding belt 541. The second height increasing ladder 43 rotates toward the first height increasing ladder 42, and the first height increasing ladder 42 rotates toward the climbing ladder 41, so that the climbing ladder 41, the first height increasing ladder 42, and the second height increasing ladder 43 are horizontally arranged. The free ends of the two straps 541 are drawn to one side of the second height increasing ladder 43 far away from the base 1, the free ends of the two straps 541 are fixed through the male buckle 542 and the female buckle 543 in an inserting mode, the two straps 541 surround the first height increasing ladder 42 and the second height increasing ladder 43, and the climbing ladder 41, the first height increasing ladder 42 and the second height increasing ladder 43 are fixed in a horizontal arrangement state. Realize first rising ladder 42 and the convenient of second rising ladder 43 and accomodate through above-mentioned operation, first rising ladder 42 and second increase ladder 43 and be difficult for damaging long service life.

Referring to fig. 3, the fence door 22 is provided with a latch type door lock 221, and the release shaft 23 is rotatably connected to the lifting table 2. The axis of the release shaft 23 is horizontal, and a suspension rope 24 is wound on the release shaft 23. One end of the suspension rope 24 is fixed to the release shaft 23, and the other end of the suspension rope 24 is fixed to the basket 241. Release shaft 23, suspension rope 24 and input basket 241 all adopt insulating material to make, and input basket 241 inside cavity and top are opened, and release shaft 23 transmission is connected with release motor 231. When a user needs to additionally obtain a tool for erection and the user is located at a high position, the user may drive the release shaft 23 to rotate by the release motor 231, suspend the basket 241 in the air and slowly move the basket 241 down to the ground by the suspension rope 24, place the tool into the basket 241 by an assistant, wind the suspension rope 24 and recover the basket 241. Through the operation, the material transmission between the lifting platform 2 and the ground is realized, the use is more convenient, and the efficiency of erecting the power line is higher.

The implementation principle of the embodiment is as follows: manual rotation second increases terraced 43 to second and increases terraced 43 and first increase terraced 42 direction of height unanimous, the second locking piece 52 that slides and the position through the fixed second locking piece 52 of magnetic sheet, increase terraced 43 and first relative position that increases terraced 42 through the fixed second of second locking piece 52 block, the first high terraced 42 of height direction vertical to first increase terraced 42 of manual rotation, the rotation angle that increases terraced 42 through the fixed first increase of sliding of first locking piece 51, the user can prolong climbing ladder 41 along this moment, first increase terraced 42 and second increase terraced 43 displacement to lift platform 2 department, the displacement is convenient to lift platform 2, and then it shifts up to lift platform 2 through elevating system 3 drive, electric power circuit erects the time by low-to-high displacement convenience, electric power circuit erects efficient.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. Electric power line erects and uses lifting device, including base (1) and vertical lifting platform (2) of setting on base (1) that slide, still including elevating system (3) that are used for controlling lifting platform (2) to go up and down, its characterized in that: the utility model discloses a ladder, including base (1), base (41), climbing ladder (41), the top of climbing ladder (41) is connected with first increase ladder (42), the first one end that increases ladder (42) and the top swivelling joint of climbing ladder (41), the first other end swivelling joint that increases ladder (42) has the second to increase ladder (43), the second increases ladder (43) and the first rotatory face coincidence that increases ladder (42) and is vertical face, still including being used for fixed second to increase ladder (43) and the first rotary mechanism (5) that increase ladder (42) rotation angle.

2. The lifting device for electric power line erection as claimed in claim 1, wherein: the rotating mechanism (5) comprises first locking pieces (51) arranged on the first heightening ladder (42) along the height direction of the first heightening ladder (42), the number of the first locking pieces (51) is two, the first locking pieces are symmetrically arranged at two ends of the first heightening ladder (42), the second heightening ladder (43) is connected with second locking pieces (52) in a sliding manner along the height direction of the second heightening ladder (43), the number of the second locking pieces (52) is two, the second heightening ladder (43) is symmetrically arranged at two ends of the second heightening ladder, the first locking pieces (51) and the second locking pieces (52) are both arranged in a C shape, the C-shaped bending directions of the first locking pieces (51) are opposite, the C-shaped bending directions of the second locking pieces (52) are opposite, the rotating mechanism (5) further comprises locking assemblies (53) used for controlling the first locking pieces (51) and the second locking pieces (52) to slide, the rotating mechanism (5) further comprises a storage assembly (54) which is used for fixing the second heightening ladder (43), enabling the first heightening ladder (42) to rotate to the second heightening ladder (43), enabling the first heightening ladder (42) and the climbing ladder (41) to be horizontally arranged.

3. The lifting device for electric power line erection as claimed in claim 2, characterized in that: locking subassembly (53) are including setting firmly first stroke piece (531) on climbing ladder (41), first increase ladder (42) are close to the tip that second increased ladder (43) and have set firmly second stroke piece (532), first stroke piece (531) correspond first locking piece (51) and set up, second stroke piece (532) correspond second locking piece (52) and set up, all set firmly on first stroke piece (531) and second stroke piece (532) and be used for magnetism to inhale magnetism and inhale magnetism piece (533) of fixed first locking piece (51) or second locking piece (52).

4. The lifting device for electric power line erection as claimed in claim 2, characterized in that: the storage assembly (54) comprises two binding belts (541) which are used for fixing a second height increasing ladder (43), a first height increasing ladder (42) and a climbing ladder (41) in a horizontally arranged state, the two binding belts (541) are symmetrically arranged on two sides of the climbing ladder (41), one end of each binding belt (541) is fixed to the climbing ladder (41), and a male buckle (542) and a female buckle (543) are fixedly arranged at the free ends of the two binding belts (541) respectively.

5. The lifting device for electric power line erection as claimed in claim 1, wherein: lift platform (2) top surface and encircle and be equipped with protection rail (21), protection rail (21) are close to the open and articulated fence door (22) of one end of climbing ladder (41), be provided with on fence door (22) and be used for fixing fence door (22) free end lock (221) on protection rail (21).

6. The lifting device for electric power line erection as claimed in claim 1, wherein: the lifting platform (2) is rotatably connected with a release shaft (23), the axis of the release shaft (23) is horizontal, a suspension rope (24) is wound on the release shaft (23), one end of the suspension rope (24) is fixed with the release shaft (23), the other end of the suspension rope (24) is fixed with a throwing basket (241), and the release shaft (23) is in transmission connection with a release motor (231).

7. The lifting device for electric power line erection as claimed in claim 1, wherein: elevating system (3) including low first platform (31) and second platform (32) to high order setting between base (1) and lifting platform (2), link to each other through scissors lift (33) between first platform (31) and base (1), link to each other through pneumatic cylinder (34) of vertical setting between first platform (31) and second platform (32), swivelling joint has vertical loop bar (35) of axis on second platform (32) top surface, the vertical cover in loop bar (35) top is equipped with lifter (36), lifter (36) and loop bar (35) threaded connection, lifter (36) top is fixed with lifting platform (2) bottom surface, loop bar (35) transmission is connected with lifting motor (351).

8. The lifting device for electric power line erection as claimed in claim 1, wherein: the bottom end of the base (1) is fixedly provided with a walking trolley.