阅读说明：本技术 一种用于变压器维修的升降装置 (Lifting device for be used for transformer maintenance ) 是由 兰鹏 刘晓磊 李亚妮 李奇 梁笑铜 霍红 高滨 马丽丽 张�成 陈殿涛 于 2021-08-24 设计创作，主要内容包括：一种用于变压器维修的升降装置,属于电力电网技术领域,解决了现有变压器维修时使用的升降装置存在稳定性差,无法按照实际需要调整位置的问题。本发明包括升降结构、旋转结构和控制单元；升降结构包括三个矩形柱和壳体,所述三个矩形柱依次滑动连接,收缩状态时均位于壳体内,且壳体的正面、第二个矩形柱和第三个矩形柱的正面均沿长度方向等间隔固定踏板,第二个矩形柱和第三个矩形柱的正面均开有矩形槽,踏板设置在所述矩形槽内,且踏板与对应的矩形槽的底面转动连接,在非使用状态时,贴设在对应矩形凹槽的底面。旋转结构带动壳体和升降结构旋转。本发明适用于架式变压器维修使用。(The utility model provides a elevating gear for transformer maintenance, belongs to power grid technical field, and the elevating gear who uses when having solved current transformer maintenance has poor stability, can't adjust the problem of position according to actual need. The invention comprises a lifting structure, a rotating structure and a control unit; elevation structure includes three rectangle post and casing, three rectangle post sliding connection in proper order all is located the casing during the shrink state, and the front of casing, second rectangle post and third rectangle post all along length direction equidistant fixed footboard, and the rectangular channel has all been opened in the front of second rectangle post and third rectangle post, and the footboard setting is in the rectangular channel, and the footboard rotates with the bottom surface of the rectangular channel that corresponds to be connected, when non-user state, pastes the bottom surface of establishing at corresponding rectangle recess. The rotating structure drives the shell and the lifting structure to rotate. The invention is suitable for maintaining the frame type transformer.)

1. A lifting device for maintenance of a transformer, the device comprising: a lifting structure, a rotating structure and a control unit;

the lifting structure comprises three rectangular columns and a shell (3), wherein the three rectangular columns are respectively a first rectangular column (101), a second rectangular column (102) and a third rectangular column (103);

the first rectangular column (101), the second rectangular column (102) and the third rectangular column (103) are connected in sequence in a sliding way and are all positioned in the shell (3) in a contraction state,

the shell (3) is of an upper opening structure, the bottom end of the upper opening structure is fixed with a base, pedals are fixed on the front face of the shell (3), the front faces of the second rectangular column (102) and the third rectangular column (103) at equal intervals along the length direction, rectangular grooves are formed in the front faces of the second rectangular column (102) and the third rectangular column (103), the pedals are arranged in the rectangular grooves, one end of each pedal is rotatably connected with the bottom face of the corresponding rectangular groove, and the pedals are attached to the bottom faces of the corresponding rectangular grooves in a non-use state;

the bottom end of the first rectangular column (101) is fixedly connected to the base of the shell, the back of the base and the top end of the third rectangular column (103) are fixedly connected with buckles (104), and the buckles (104) are used for buckling the base of the shell and the third rectangular column (103) on the telegraph pole body;

the left side and the right side of the first rectangular column (101) and the second rectangular column (102) are provided with pulleys in a mirror image mode, the pulleys are close to the top ends of the rectangular columns, and the fixing pieces are arranged on the left side and the right side of the three rectangular columns and close to the bottom ends of the rectangular columns;

the lifting structure also comprises two lifting executing mechanisms, the two lifting executing mechanisms have the same structure, and are arranged on the left side and the right side of each rectangular column (101) in a mirror image manner;

each lifting actuating mechanism comprises a first motor (201), a first transmission line (202), a second transmission line (203), a winding shaft and a fixing frame;

the winding shaft is arranged on the fixed frame, the first motor (201) drives the winding shaft to rotate, one end of a first transmission line (202) is connected to the winding shaft, the other end of the first transmission line is connected to a fixing piece of a second rectangular column (102), and the first transmission line (202) is bridged on a pulley on the first rectangular column (101); one end of a second transmission line (203) is fixed on the fixing piece of the first rectangular column (101), the other end of the second transmission line is fixed on the fixing piece of the third rectangular column (103), and the second transmission line (203) is bridged on the fixed pulley of the second rectangular column (102);

the first motor (201) drives the second rectangular column (102) and the third rectangular column (103) to extend out of the shell or retract into the shell (3) through the winding shaft;

the rotating structure comprises two rotating parts which are respectively positioned at the upper section and the lower section of the shell (3); the lifting mechanism is used for driving the shell (3) and the lifting structure to rotate along the telegraph pole;

the control unit is used for controlling the lifting of the lifting structure and is also used for controlling the rotating direction and the rotating speed of the rotating structure.

2. The lifting device for transformer maintenance of claim 1, wherein the rotating portion comprises: a rotary driving gear (401), a second motor, two arc-shaped fixing pieces (403) and an annular structure (402) with teeth;

a groove (301) is formed in the side surface of the shell (3), a rotary driving gear (401) is arranged in the groove (301), the rotary driving gear (401) is matched with an annular structure (402) with teeth, the annular structure (402) with teeth is sleeved on the telegraph pole body,

the two arc-shaped fixing pieces (403) are positioned on two sides of the rotary driving gear (401), one end of each arc-shaped fixing piece is hinged with the shell (3), and the other end of each arc-shaped fixing piece is clamped and connected through a buckle to form a ring shape;

the second motor drives the rotary driving gear (401) to rotate through the transmission structure, so that the rotary driving gear (401) is meshed with teeth on the annular structure (402) with teeth, and the shell (3) is driven to rotate along the circumferential direction of the telegraph pole;

the control unit is used for controlling the second motor to rotate and driving the shell (3) to rotate along the telegraph pole.

3. The lifting device for transformer maintenance according to claim 2, characterized in that two arc-shaped fixing members (403) are provided with inward edges, the annular structure (402) with teeth is two semi-circular structures, the upper ends and the lower ends of the two semi-circular structures are extended with fixing portions, the fixing portions of the two semi-circular structures are arranged on the telegraph pole through bolt connection sleeves, the fixing portions are provided with sliding grooves along the arc direction, the sliding grooves are internally fixed with rolling shafts, and the edges of the two arc-shaped fixing members correspond to the sliding grooves and slide in the sliding grooves.

4. The lifting device for transformer maintenance as claimed in claim 1, wherein the two winding shafts are rotated simultaneously in the same direction.

5. The lifting device for transformer maintenance as claimed in claim 1, wherein the control unit controls the rotation direction and rotation speed of the rotating structure by:

collecting the gravity of the pedal and the treads at the top ends of the three rectangular columns by adopting a gravity sensor;

when a lifting or rotating control signal is received, whether a worker is on the lifting structure is judged according to the gravity signal;

if the working personnel are positioned on the lifting structure, when the lifting control signal or the falling control signal or the rotation control signal is received, the voice alarm circuit is adopted to prompt the working personnel that the equipment is lifted or rotated.

6. The lifting device for transformer maintenance according to claim 5, characterized in that the first rectangular column (101), the second rectangular column (102) and the third rectangular column (103) are provided with tilt sensors, the tilt sensors transmit collected tilt signals to the control unit, and the control unit controls the voice alarm circuit to send out a tilt voice prompt and prompt the tilt direction when receiving the tilt of any one of the rectangular columns.

Technical Field

The invention belongs to the technical field of power grids.

Background

The existing transformer is usually separated from the ground, and is usually supported by a ladder when being maintained, but the ladder is generally supported by a plurality of workers when being used, so that the problem of poor stability exists, the ladder is inconvenient to move on the ladder, when the maintenance position is adjusted, the ladder can only be taken off from the ladder firstly, and the ladder is ascended again after the position is adjusted, so that the problems of time waste and poor stability exist.

Disclosure of Invention

The invention aims to solve the problems that a lifting device used in the existing transformer maintenance has poor stability and cannot adjust the position according to actual requirements, and provides the lifting device for the transformer maintenance.

The invention relates to a lifting device for maintaining a transformer, which comprises: the device includes: a lifting structure, a rotating structure and a control unit;

the lifting structure comprises three rectangular columns and a shell, wherein the three rectangular columns are respectively a first rectangular column, a second rectangular column and a third rectangular column;

the first rectangular column, the second rectangular column and the third rectangular column are sequentially connected in a sliding way and are all positioned in the shell in a contraction state,

the shell is of an upper opening structure, the bottom end of the shell is fixed with a base, pedals are fixed on the front face of the shell, the front faces of the second rectangular column and the third rectangular column at equal intervals along the length direction, rectangular grooves are formed in the front faces of the second rectangular column and the third rectangular column, the pedals are arranged in the rectangular grooves, one end of each pedal is rotatably connected with the bottom face of the corresponding rectangular groove, and the pedals are attached to the bottom faces of the corresponding rectangular grooves when not in use;

the bottom end of the first rectangular column is fixedly connected to the base of the shell, the back of the base and the top end of the third rectangular column are fixedly connected with buckles, and the buckles are used for buckling the base of the shell and the third rectangular column on the telegraph pole body;

the left side and the right side of each of the first rectangular column and the second rectangular column are provided with pulleys in a mirror image mode and are close to the top ends of the rectangular columns, and the left side and the right side of each of the three rectangular columns are provided with fixing pieces and are close to the bottom ends of the rectangular columns;

the lifting structure also comprises two lifting executing mechanisms, the two lifting executing mechanisms have the same structure, and the two lifting executing mechanisms are arranged on the left side and the right side of each rectangular column in a mirror image manner;

each lifting actuating mechanism comprises a first motor, a first transmission line, a second transmission line, a winding shaft and a fixing frame;

the winding shaft is arranged on the fixing frame, the first motor drives the winding shaft to rotate, one end of a first transmission line is connected to the winding shaft, the other end of the first transmission line is connected to a fixing piece of a second rectangular column, and the first transmission line is bridged on a pulley on the first rectangular column; one end of a second transmission line is fixed on the fixing piece of the first rectangular column, the other end of the second transmission line is fixed on the fixing piece of the third rectangular column, and the second transmission line is bridged on the fixed pulley of the second rectangular column;

the first motor drives the second rectangular column and the third rectangular column to extend out of the shell or retract into the shell through the winding shaft;

the rotating structure comprises two rotating parts which are respectively positioned at the upper section and the lower section of the shell; the lifting mechanism is used for driving the shell and the lifting structure to rotate along the telegraph pole;

the control unit is used for controlling the lifting of the lifting structure and is also used for controlling the rotating direction and the rotating speed of the rotating structure.

Further, in the present invention, the rotating portion includes: the rotary driving gear, the second motor, the two arc-shaped fixing pieces and the annular structure with teeth are arranged on the rotary driving gear;

a groove is arranged on the side surface of the shell, a rotary driving gear is arranged in the groove, the rotary driving gear is matched with an annular structure with teeth, the annular structure with teeth is sleeved on the telegraph pole body,

the two arc-shaped fixing pieces are positioned on two sides of the rotary driving gear, one end of each arc-shaped fixing piece is hinged with the shell, and the other end of each arc-shaped fixing piece is clamped and connected through a buckle to form a ring;

the second motor drives the rotary driving gear to rotate through the transmission structure, so that the rotary driving gear is meshed with teeth on the annular structure with the teeth, and the shell is driven to rotate along the circumferential direction of the telegraph pole;

the control unit is used for controlling the second motor to rotate and driving the shell to rotate along the telegraph pole.

Furthermore, in the invention, the two arc-shaped fixing pieces are both provided with inward edges, the annular structure with teeth is two semicircular structures, the upper ends and the lower ends of the two semicircular structures are respectively extended with a fixing part, the fixing parts of the two semicircular structures are connected with the telegraph pole through a bolt connecting sleeve, the fixing parts are provided with sliding grooves along the arc direction, rolling shafts are fixed in the sliding grooves, and the edges of the two arc-shaped fixing pieces correspond to the sliding grooves and slide in the sliding grooves.

Further, in the present invention, the two bobbins rotate in the same direction at the same time.

Further, in the present invention, a specific method for controlling the rotation direction and the rotation speed of the rotating structure by the control unit is as follows:

collecting the gravity of the pedal and the treads at the top ends of the three rectangular columns by adopting a gravity sensor;

when a lifting or rotating control signal is received, whether a worker is on the lifting structure is judged according to the gravity signal;

if the working personnel are positioned on the lifting structure, when the lifting control signal or the falling control signal or the rotation control signal is received, the voice alarm circuit is adopted to prompt the working personnel that the equipment is about to lift or rotate and to ask the worker to stand stably or squat half.

Further, the first rectangular column, the second rectangular column and the third rectangular column are respectively provided with an inclination sensor, the inclination sensors send acquired inclination signals to the control unit, and the control unit controls the voice alarm circuit to send inclination voice prompts and prompt the inclination direction when receiving the inclination of any one rectangular column.

The lifting structure is simple in structure and easy to carry when in use, the upper end and the lower end of the lifting structure are both regulated on the telegraph pole through the buckles, the stability of the lifting structure is ensured, the buckles can be adjusted in tightness, when the lifting structure is lifted or rotated, only the buckles need to be adjusted in tightness, the upper buckle and the lower buckle are adjusted in tightness and fixed when the lifting structure starts to work, meanwhile, the first rectangular column, the second rectangular column and the third rectangular column are fixedly connected through the slide way, and meanwhile, when the lifting structure is elongated to the longest, the connection part between the two rectangular columns is at least three quarters, and the stability of the lifting structure is ensured. The height of the lifting structure can be adjusted according to actual requirements.

Drawings

FIG. 1 is a schematic view of the extended state of the lifting device for transformer maintenance according to the present invention;

FIG. 2 is a schematic view of a retracted internal structure of the lifting device for repairing a transformer according to the present invention;

FIG. 3 is a schematic diagram of the internal structure of the lifting device for repairing the transformer in an extended state according to the present invention;

FIG. 4 is a schematic view of the connection of the lifting device for repairing transformers according to the present invention with the rotating structure in a retracted state;

fig. 5 is a schematic view of the rotating structure installation.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The first embodiment is as follows: the present embodiment will be described below with reference to fig. 1 to 3, and the lifting device for repairing a transformer according to the present embodiment includes: a lifting structure, a rotating structure and a control unit;

the lifting structure comprises three rectangular columns and a shell 3, wherein the three rectangular columns are a first rectangular column 101, a second rectangular column 102 and a third rectangular column 103 respectively;

the first rectangular column 101, the second rectangular column 102 and the third rectangular column 103 are connected in sequence in a sliding way, are all positioned in the shell 3 when in a contraction state,

the shell 3 is of an upper opening structure, the bottom end of the shell is fixed with a base, pedals are fixed on the front face of the shell 3, the front faces of the second rectangular column 102 and the third rectangular column 103 at equal intervals along the length direction, rectangular grooves are formed in the front faces of the second rectangular column 102 and the third rectangular column 103, the pedals are arranged in the rectangular grooves and are rotatably connected with the bottom surfaces of the corresponding rectangular grooves, and the pedals are attached to the bottom surfaces of the corresponding rectangular grooves when not in use;

the bottom end of the first rectangular column is fixedly connected to the base of the housing, the back of the base and the top end of the third rectangular column 103 are both fixedly connected with a buckle 104, and the buckle 104 is used for buckling the base of the housing and the third rectangular column 103 on the telegraph pole body;

the left side and the right side of each of the first rectangular column and the second rectangular column are provided with pulleys in a mirror image mode and are close to the top ends of the rectangular columns, and the left side and the right side of each of the three rectangular columns are provided with fixing pieces and are close to the bottom ends of the rectangular columns;

the lifting structure further comprises two lifting executing mechanisms, the two lifting executing mechanisms have the same structure, and the two lifting executing mechanisms are arranged on the left side and the right side of the first rectangular column 101 in a mirror image mode;

each lifting actuating mechanism comprises a first motor 201, a first transmission line 202, a second transmission line 203, a winding shaft and a fixing frame;

the winding shaft is arranged on the fixed frame, the first motor drives the winding shaft to rotate, one end of a first transmission line 202 is connected to the winding shaft, the other end of the first transmission line is connected to a fixed piece of the second rectangular column 102, and the first transmission line 202 is bridged on a pulley on the first rectangular column 101; one end of a second transmission line 203 is fixed on the fixing piece of the first rectangular column 101, the other end of the second transmission line is fixed on the fixing piece of the third rectangular column 103, and the second transmission line 203 is bridged on the fixed pulley of the second rectangular column 102;

the first motor 201 drives the second rectangular column 102, the second rectangular column 102 and the third rectangular column 103 to extend out of the shell or retract into the shell 3 through the winding shaft;

the rotating structure comprises two rotating parts which are respectively positioned at the upper section and the lower section of the shell 3; the lifting mechanism is used for driving the shell 3 and the lifting structure to rotate along the telegraph pole;

the control unit is used for controlling the lifting of the lifting structure and is also used for controlling the rotating direction and the rotating speed of the rotating structure.

In this embodiment, the inner sides of the two walls of the second rectangular groove are fixed with sliding blocks, the sliding block of the second rectangular column 102 is in the sliding groove of the first rectangular column 101, and the sliding groove wall of the first rectangular column 101 is provided with an inward limiting structure, so that the sliding block of the second rectangular column 102 is prevented from slipping from the sliding groove of the first rectangular column 101, the sliding block of the second rectangular column 102 is in the sliding groove of the third rectangular column 103, and the sliding groove wall of the third rectangular column 103 is provided with an inward limiting structure, so that the sliding block of the second rectangular column 102 is prevented from slipping from the sliding groove of the third rectangular column 103. The top end of the third rectangular column 103 is fixed with a circular fixing plate, the fixing plate is arranged on the upper side of the buckle at the top end of the third rectangular column 103, when the third rectangular column does not rotate, one side of the circular fixing plate is fixed at the top end of the third rectangular column 103, and the other side of the circular fixing plate is fixed on a telegraph pole through the fixing plate. The accuracy of the lifting structure is effectively guaranteed. Meanwhile, the control unit is adopted to control the lifting height by controlling the rotation of the first motor 201, the height can be adjusted timely according to actual needs, manual reinforcement is not needed, the pedal is arranged on the side surface of the lifting part, and a worker can automatically adjust the working height in a ladder climbing mode.

According to the invention, four telescopic structures are arranged at the bottom end of the base, the telescopic structures are conical after the maintenance position is adjusted, the conical telescopic structures extend out in a rotating mode when extending downwards and are fixed on the bottom surface, the stability is ensured, the circular fixing plate is fixed at the top end of the third rectangular column 103 before work is started, meanwhile, the buckle on the base and the buckle at the top end of the third rectangular column 103 are tightened, and the stability is reinforced again.

Further, the present embodiment will be described with reference to fig. 4 and 5, and in the present embodiment, the rotating portion includes: a rotary drive gear 401, a second motor, two arc mounts 403 and a toothed ring structure 402;

a groove 301 is formed on the side surface of the shell 3, a rotary driving gear 401 is arranged in the groove 301, the rotary driving gear 401 is matched with a ring-shaped structure 402 with teeth, the ring-shaped structure 402 with teeth is sleeved on the telegraph pole body,

the two arc-shaped fixing pieces 403 are positioned at two sides of the rotary driving gear 401, one end of each arc-shaped fixing piece is hinged with the shell 3, and the other end of each arc-shaped fixing piece is clamped and connected through a buckle to form a ring shape;

the second motor drives the rotary driving gear 401 to rotate through the transmission structure, so that the rotary driving gear 401 is meshed with teeth on the annular structure 402 with teeth, and the shell 3 is driven to rotate along the circumferential direction of the telegraph pole;

the control unit is used for controlling the second motor to rotate and driving the shell 3 to rotate along the telegraph pole.

This embodiment installs the ring structure 402 that has the tooth earlier before using on the position that the wire pole corresponds, will connect two arc spare locks on the casing again, if when needs are rotatory, need confirm earlier that the buckle on third rectangular column top and the base is the state of loosening, avoids influencing rotatoryly, and two arc mounting 403 in this embodiment can also articulate for the ease of the installation and also can adopt bolted connection.

Further, in this embodiment, two arc-shaped fixing members 403 are provided with inward edges, the annular structure 402 with teeth is two semicircular structures, the upper ends and the lower ends of the two semicircular structures are extended with fixing portions, the fixing portions of the two semicircular structures are connected to the telegraph pole through bolt connecting sleeves, the fixing portions are provided with sliding grooves along the arc direction, rolling shafts are fixed in the sliding grooves, and the edges of the two arc-shaped fixing members correspond to the sliding grooves and slide in the sliding grooves.

In the present embodiment, a stopper is provided in the circumferential direction of the pulley, and the first transmission line 202 and the second transmission line 203 are limited in the concave portion of the pulley by the stopper.

Further, in the present embodiment, the two bobbins simultaneously rotate in the same direction.

In this embodiment, two spool simultaneous rotations realize driving the extension of first transmission line 202 of rectangle post both sides simultaneously or withdrawing, effectual assurance elevation structure's stability control, simultaneously, just pass and the number of turns of reversal to first motor 201 sets up, guarantee that elevation structure rises to when the highest, the stop motor stops just passing, the second rectangle post 102 and the shrink of third rectangle post 103 when elevation structure stop rotating in back 3 of casing, and the direction of rotation and the rotational speed of staff's accessible remote controller or the first motor 201 of motor positive and negative rotation button control.

Further, in the present embodiment, a specific method for controlling the rotation direction and the rotation speed of the rotating structure by the control unit is as follows:

collecting the gravity of the pedal and the treads at the top ends of the three rectangular columns by adopting a gravity sensor;

when a lifting or rotating control signal is received, whether a worker is on the lifting structure is judged according to the gravity signal;

if the working personnel are positioned on the lifting structure, when the lifting control signal or the falling control signal or the rotation control signal is received, the voice alarm circuit is adopted to prompt the working personnel that the equipment is about to lift or rotate and to ask the worker to stand stably or squat half.

Further, in this embodiment, the first rectangular column 101, the second rectangular column 102, and the third rectangular column 103 are all provided with an inclination sensor, the inclination sensor sends an acquired inclination signal to the control unit, and the control unit controls the voice alarm circuit to send an inclination voice prompt and prompt an inclination direction when receiving that any one of the rectangular columns is inclined.

In this embodiment, when there is a worker on the lifting structure, the controller controls the rotation speed or the lifting speed of the rotating structure to be adjusted according to the position of the worker, so as to effectively ensure the safety of the worker in the process of working, when the worker is located on the pedal on the front face of the firing shell of the first rectangular column, the control speed is one half of the no-load speed, when the collected worker is located on the pedal or the top end of the second rectangular column, the speed is limited to be reduced to one third of the no-load speed, when the worker is located on the pedal or the top end of the third rectangular column, if the worker is in the working state, the worker can move slowly, if the worker is in the non-working state, the worker can be adjusted to one third of the no-load speed according to actual needs, so as to ensure the personal safety of the worker. In the invention, the first transmission line 202 and the second transmission line 203 can be realized by steel wire ropes, and one side surface of the shell 3 and the back surface of the third rectangular column 103 are positioned on the same straight line and are attached to a telegraph pole when in use, so that the unstable gravity center during rotation or lifting is effectively avoided.

The lifting structure comprises three lifting parts and a shell 3, wherein the three lifting parts are a first rectangular column 101, a second rectangular column 102 and a third rectangular column 103; a base is fixed at the bottom end of the first rectangular column 101, and buckles are arranged on one side of the base and the top end of the third rectangular column 103 and used for buckling the base and the third rectangular column on a telegraph pole; the front surfaces of the second rectangular column 102 and the third rectangular column 103 are provided with a first rectangular groove along the length direction, the outer surfaces corresponding to the two side walls of the rectangular groove are provided with sliding grooves along the length direction, the back surfaces of the first rectangular column 101 and the second rectangular column 102 are provided with a second rectangular groove along the length direction, the inner sides of the two walls of the second rectangular groove are fixed with bulges for sliding connection, the bulges of the second rectangular column 102 slide in the sliding grooves of the first rectangular column 101 when ascending or descending, and the bulges of the second rectangular column 102 slide in the sliding grooves of the third rectangular column 103 when ascending or descending;

pulleys are fixed at the top ends of the left and right sides of the first rectangular column 101, and fixing pieces are fixed at the bottom ends of the left and right sides of the first rectangular column 101, the second rectangular column 102 and the third rectangular column 103;

the lifting control unit comprises a first motor 201, two first transmission lines 202, two second transmission lines 203 and a winding shaft;

the first motor 201, the two fixing frames and the winding shafts are all arranged on the front face of the first rectangular column 101 and are respectively located on the left side face and the right side face of the center line of the base, the rotating shaft of the first motor 201 drives the two winding shafts to rotate simultaneously through the transmission structure, the two winding shafts are respectively arranged on the two winding shaft frames, the two winding shaft frames are arranged on the two sides of the first motor 201, the winding shafts are used for winding the first transmission line 202, and the first motor 201 rotates to drive the two winding shafts to rotate;

one end of the first transmission line 202 is fixed on the winding shaft, and the other end of the first transmission line is connected with a fixing piece on the second rectangular column 102 by passing through a pulley on the first rectangular column 101; one end of the second transmission line 203 is connected with a fixing piece on the first rectangular column 101, and the other end of the second transmission line 203 is connected with a fixing piece on the third rectangular column 103 by passing through a pulley on the second rectangular column 102; pedals are arranged in the rectangular grooves of the front face of the shell, the second rectangular column 102 and the third rectangular column 103 at equal intervals along the length direction, the pedals are rotatably connected with the front face of the first rectangular column 101, the bottom face of the groove of the second rectangular column 102 or the bottom face of the groove of the third rectangular column 103, the pedals are of a one-side weighing structure, a triangular limiting block is usually arranged on the lower side of each pedal, and the pedals are upwards attached to the front face of the first rectangular column 101, the rectangular grooves of the second rectangular column 102 or the rectangular grooves of the third rectangular column 103 when not in use;

the first motor 201 rotates positively and negatively to control the second rectangular column 102 and the third rectangular column 103 to ascend or descend;

the first motor and the first rectangular column 101 are both arranged in the shell 3, and the second rectangular column 102 and the third rectangular column 103 are positioned in the shell 3 when in a contracted state;

the rotating structure comprises two rotating structures which are respectively positioned at the upper part and the lower part of the shell 3; used for driving the shell 3 and the lifting structure to rotate along the telegraph pole. In addition, the inner sides of the grooves of the second rectangular column and the third rectangular column are provided with the buckles, workers can buckle the buckles with hands in the upward climbing process, safety is effectively guaranteed, the buckles are of annular structures movably connected on the inner walls of the grooves, and during construction, the workers can sleeve the fixing belts after determining the working positions and fix the fixing belts to be connected with the buckles, so that safety during operation is guaranteed.

Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.