CN220449746U - Step-type pole climbing device of electric screw - Google Patents

Abstract

The utility model relates to an electric screw stepping type pole climbing device; the pole climbing device comprises an operation platform and a lifting assembly; the operation platform is of a horizontal buckling structure, and a column penetrating hole for the upright rod to penetrate is formed in the center of the operation platform; the lifting assembly is provided with three or more sets and is uniformly distributed at the bottom of the operation platform along the circumference, and comprises an upper clamping mechanism, a lower clamping mechanism and a lifting mechanism; the upper clamping mechanism comprises an upper motor component, an upper screw rod, an upper guide sleeve, an upper clamping rod and an upper clamping piece which are fixedly connected with the operation platform; the lifting mechanism comprises a lifting motor component, a lifting screw rod, a lifting guide sleeve and a lifting rod which are connected with the upper guide sleeve; the lower clamping mechanism comprises a lower guide sleeve, a lower motor assembly, a lower screw, a lower clamping rod and a lower clamping piece which are connected with the end part of the lifting rod; the lower guide sleeve is fixedly connected with the end part of the lifting rod and the lower motor assembly respectively; when the pole-climbing device works, the occupied ground space is small, traffic is not affected, all suitable heights can be lifted, and enough accessories can be carried.

Description

Step-type pole climbing device of electric screw

Technical Field

The utility model relates to the technical field of lifting equipment, in particular to an electric screw stepping type pole climbing device.

Background

The pole is a common structural facility in modern facilities, such as utility poles, street light poles, etc. that are common in cities. These uprights have the same characteristics, i.e. a circular or nearly circular horizontal section, in order to guarantee the structural strength of the uprights. The electric pole is provided with electric equipment; the street lamp post is provided with a lighting lamp; windmills for wind power generation are also arranged at the top ends of some street lamp poles; some street lamp poles are provided with advertising boards in the middle. Maintenance of power equipment, maintenance of lighting lamps, maintenance of windmills or billboards, all require lifting of workers to the corresponding positions of the uprights. The common lifting equipment is an overhead working truck, and as the technical scheme disclosed by the utility model patent with the publication number of CN219217492U is that the overhead working truck is required to be parked at the roadside, and then a worker is sent to the high altitude by using a working platform. Such lifting devices have the following disadvantages: 1. the overhead working truck occupies larger ground space and is easy to influence traffic; 2. the lifting height of the overhead working truck is limited by the supporting arm; 3. the work platform has a narrow space, and corresponding accessories which can be carried by workers are limited to a certain extent.

Disclosure of Invention

The utility model aims to solve the problems and provides an electric screw stepping type pole climbing device.

The technical scheme of the utility model is as follows: an electric screw stepping type pole climbing device comprises an operation platform and a lifting assembly; the operation platform is of a horizontal buckling structure, and a column penetrating hole for the upright rod to penetrate is formed in the center of the operation platform; the buckling line of the operation platform passes through the column penetrating hole; the operation platform is of a detachable structure, so that the upright posts can be enclosed in the post penetrating holes through detachment; the lifting assembly is provided with three or more sets, and the circumferences of the lifting assembly are uniformly distributed at the bottom of the operation platform, so that the lifting assembly uniformly acts on the upright posts from the three or more sets; the lifting assembly comprises an upper clamping mechanism, a lower clamping mechanism and a lifting mechanism; the upper clamping mechanism comprises an upper motor component, an upper screw rod, an upper guide sleeve, an upper clamping rod and an upper clamping piece which are fixedly connected with the operation platform; the output end of the upper motor component is coaxially and fixedly connected with the upper screw rod, so that torque is transmitted to the upper screw rod; the upper screw rod is connected with the upper clamping rod through threads, and the axial movement of the upper clamping rod is realized by the torque transmitted by the upper motor assembly; the upper guide sleeve is fixedly connected with the upper motor assembly; the outer wall sliding groove of the upper clamping rod is matched with the inner wall sliding groove of the upper guide sleeve; the upper guide sleeve radially limits the upper clamping rod, so that the axial movement of the upper clamping rod is ensured; an upper clamping piece matched with the side surface of the vertical rod is arranged at the end part of the upper clamping rod; the upper clamping piece is connected with the vertical rod to form a fulcrum of the operation platform; the supporting point acts on the vertical rod from three sets of directions surrounding the vertical rod and more than three sets of directions, so that the supporting effect is stable; the lifting mechanism comprises a lifting motor component, a lifting screw rod, a lifting guide sleeve and a lifting rod which are connected with the upper guide sleeve; the output end of the lifting motor component is coaxially and fixedly connected with the lifting screw rod, so that torque is transmitted to the lifting screw rod; the lifting screw rod is connected with the lifting rod through threads, and the axial movement of the lifting rod is realized by the torque transmitted by the lifting motor component through the lifting guide sleeve; the lifting guide sleeve is fixedly connected with the lifting motor component; the outer wall sliding key of the lifting rod is matched with the inner wall sliding groove of the lifting guide sleeve; the lifting guide sleeve radially limits the lifting rod, so that the axial movement of the lifting rod is ensured; the lower clamping mechanism comprises a lower guide sleeve, a lower motor assembly, a lower screw, a lower clamping rod and a lower clamping piece which are connected with the end part of the lifting rod; the output end of the lower motor component is coaxially and fixedly connected with the lower screw rod, so that torque is transmitted to the lower screw rod; the end part of the lower screw rod is connected with the lower clamping rod through threads, and the torque transmitted by the lower motor assembly is changed into the axial movement of the lower screw rod through the lower guide sleeve; the lower guide sleeve is fixedly connected with the end part of the lifting rod and the lower motor assembly respectively; the axial movement of the lifting rod can be changed into the vertical movement of the upper motor assembly and the lower motor assembly, and then the lifting of the whole operation platform is changed; the outer wall sliding key of the lower clamping rod is matched with the inner wall sliding groove of the lower guide sleeve; the lower guide sleeve radially limits the lower clamping rod, so that the axial movement of the lower clamping rod is ensured; the end part of the lower clamping rod is provided with a lower clamping piece matched with the side surface of the vertical rod; the lower clamping piece is connected with the vertical rod to form a fulcrum of the operation platform; the supporting point acts on the vertical rod from three sets of directions surrounding the vertical rod and more than three sets of directions, so that the supporting effect is stable; the upper clamping mechanism and the lower clamping mechanism alternately support the vertical rods, and the lifting mechanism acts during the period, so that the step-by-step lifting or step-by-step descending of the working platform is formed.

Preferably, the upper clamping rod and the lower clamping rod are respectively connected with the upper clamping piece and the lower clamping piece through spherical pairs, so that the inclination angles of the upper clamping piece and the lower clamping piece can be adaptively changed, and the clamping effect of the upper clamping piece and the lower clamping piece is enhanced.

Preferably, the upper guide sleeve is fixedly connected with the bottom of the operation platform through two reinforcing ribs and is used for fixedly connecting the upper clamping mechanism with the operation platform and reinforcing the connection strength of the upper clamping mechanism and the operation platform.

Preferably, the operation platform comprises a left semi-circular ring body and a right semi-circular ring body; the ends of the left semicircular ring body and the right semicircular ring body are connected through a detachable pin shaft; one of the pin shafts is removed, and the left semi-circular ring body and the right semi-circular ring body can be opened and closed like scissors, so that the upright posts are conveniently enclosed in the column penetrating holes.

Preferably, the electric screw stepping type pole climbing device further comprises three or more sets of supporting components; the supporting components are uniformly distributed around the circumference of the axis of the operation platform; the support component supports the operation platform; the support assembly comprises a vertical column and universal wheels arranged at the bottom of the vertical column; the position of the universal wheel exceeds the lower clamping mechanism; the universal wheels can help the operation platform to move on the ground in a short distance, so that the upright posts can be conveniently enclosed in the post penetrating holes.

Preferably, the tail end of the lower motor assembly is provided with a vertical guide wheel; the operation platform downwardly extends to have the vertical guide rail with vertical leading wheel complex, not only provides the direction to the vertical lift of operation platform, but also reduced the friction load of leading wheel and guide rail department.

Further, the tail end of the lower motor assembly is provided with a U-shaped frame which is horizontally arranged; the guide wheel is arranged at the end part of the U-shaped frame; the vertical guide rail is of a C-shaped column structure; the C-shaped column comprises an inner end surface and two free ends; a gap is arranged between the two free ends; the closed end of the U-shaped frame is provided with a guide column; the guide post is inserted into the notch; the guide wheel is connected with the inner end surface of the C-shaped column; the closed end of the U-shaped frame is connected with the free end of the C-shaped column, so that the vertical guiding limit of the lifting mechanism is realized.

The beneficial effects of the utility model are as follows: the electric screw stepping type pole climbing device has the following advantages:

(1) The upper clamping mechanism and the lower clamping mechanism alternately support the vertical rods, and the lifting mechanism acts during the period, so that the step-by-step lifting or step-by-step descending of the working platform is formed. When the pole climbing device works, the occupied ground space is small, traffic is not influenced, and all proper heights can be lifted; the working platform has large space and can carry enough accessories;

(2) The tail end of the lower motor component is provided with a vertical guide wheel; the working platform downwards extends to form a C-shaped vertical guide rail matched with the vertical guide wheel, and reliable guide is provided for the movement of the lifting mechanism.

Drawings

FIG. 1 is a schematic diagram of the operation of the electric screw stepping pole climbing device of the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is an enlarged view of I of FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

fig. 5 is an enlarged view of II of fig. 4;

fig. 6 is an enlarged view of III of fig. 4;

FIG. 7 is a B-B cross-sectional view of FIG. 4;

FIG. 8 is a cross-sectional view of C-C of FIG. 5;

FIG. 9 is a sectional view of D-D of FIG. 5;

FIG. 10 is a sectional E-E view of FIG. 5;

FIG. 11 is a perspective view of a lift assembly;

FIG. 12 is a second perspective view of the lift assembly;

in the figure: 0. upright, 1 work platform, 11, through-hole, 12, buckle line, 13, stiffener, 14, left half-torus, 141, extension plate, 1411, pin bore A, 15, right half-torus, 151, 1511, pin bore B, 16, pin shaft, 17, vertical guide rail, 171, plug, 18, rail, 2, lifting assembly, 21, upper clamping mechanism, 211, upper motor assembly, 212, upper screw, 213, upper guide sleeve, 214, upper clamping rod, 2141, upper clamping plate, 22, lower clamping mechanism, 221, lower guide sleeve, 222, lower motor assembly, 2221, vertical guide wheel, 2222, U-shaped frame, 223, lower screw, 224, lower clamping plate, 2241, 23, lifting mechanism, 231, lifting motor assembly, 232, lifting screw, 233, lifting guide sleeve, 234, lifting rod, 31, sliding key, 32, chute, 4, support assembly, 41, vertical column, 42.

Description of the embodiments

Embodiment one: referring to fig. 1 to 12, an electric screw stepping type pole climbing device comprises an operation platform 1 and a lifting assembly 2; the operation platform 1 is of a horizontal buckling structure, and a column penetrating hole 11 for the vertical rod 0 to penetrate is arranged in the center of the operation platform; the buckling line 12 of the operation platform 1 passes through the column penetrating hole 11; the operation platform 1 is of a detachable structure, so that the upright rod 0 can be enclosed in the column penetrating hole 11 through detachment; the lifting assembly 2 has three sets and more, and the circumferences of the three sets and more are uniformly distributed at the bottom of the operation platform 1, so that the three sets and more uniformly act on the upright rod 0; the lifting assembly 2 comprises an upper clamping mechanism 21, a lower clamping mechanism 22 and a lifting mechanism 23; the upper clamping mechanism 21 comprises an upper motor assembly 211, an upper screw 212, an upper guide sleeve 213, an upper clamping rod 214 and an upper clamping piece 2141 which are fixedly connected with the working platform 1; the output end of the upper motor assembly 211 is coaxially and fixedly connected with the upper screw 212, so that torque is transmitted to the upper screw 212; the upper motor assembly 211 comprises an upper motor, an upper coupling, and an upper housing with an upper housing; the upper motor is used for outputting torque; the upper coupler is used for connecting an output shaft of the upper motor with other shafts; the upper frame is used for mounting other parts of the upper motor assembly 211; the upper shell covers all parts of the upper motor assembly 211 including the upper frame on the inner side, and only one hole is left for the output end of the upper motor assembly 211 to pass through; when the upper motor is a low-speed motor, the output end of the upper motor assembly 211 is the output shaft of the upper motor; the upper coupling directly connects the output shaft of the upper motor with the upper screw 212; when the upper motor is a high-speed motor, the upper motor assembly 211 further includes an upper decelerator; the output end of the upper motor assembly 211 is the output end of the upper speed reducer; the upper coupler connects the output shaft of the upper motor with the input end of the upper speed reducer; an upper coupling connects the output of the upper decelerator to the upper screw 212; the upper decelerator adjusts the output rotation speed of the upper motor to be suitable for the rotation speed of the upper screw 212; the upper screw 212 is in threaded connection with the upper clamping rod 214, and the torque transmitted by the upper motor assembly 211 is changed into axial movement of the upper clamping rod 214 through the upper guide sleeve 213; the upper guide sleeve 213 is fixedly connected with the upper motor assembly 211; the outer wall chute 32 of the upper clamping lever 214 is matched with the inner wall chute 32 of the upper guide sleeve 213; the upper guide sleeve 213 radially limits the upper clamping rod 214, so that the axial movement of the upper clamping rod 214 is ensured; the end of the upper clamping rod 214 is provided with an upper clamping piece 2141 matched with the side surface of the vertical rod 0; the upper clamping piece 2141 is connected with the vertical rod 0 and can form a fulcrum of the operation platform 1; the supporting point acts on the vertical rod 0 from three sets of directions surrounding the vertical rod 0 and more, so that the supporting effect is stable; the lifting mechanism 23 comprises a lifting motor assembly 231, a lifting screw 232, a lifting guide sleeve 233 and a lifting rod 234 which are connected with the upper guide sleeve 213; the output end of the lifting motor assembly 231 is coaxially and fixedly connected with the lifting screw 232, so that torque is transmitted to the lifting screw 232; the lifting motor assembly 231 comprises a lifting motor, a lifting coupler and a lifting frame with a lifting shell; the lifting motor is used for outputting torque; the lifting coupler is used for connecting an output shaft of the lifting motor with other shafts; the lifting frame is used for installing other parts of the lifting motor assembly 231; the lifting shell covers all parts of the lifting motor assembly 231 comprising the lifting frame on the inner side, and only one hole is left for the output end of the lifting motor assembly 231 to pass through; when the lift motor is a low-speed motor, the output end of the lift motor assembly 231 is an output shaft of the lift motor; the lifting coupler directly connects the output shaft of the lifting motor with the lifting screw 232; when the lift motor is a high-speed motor, the lift motor assembly 231 further includes a lift decelerator; the output end of the lifting motor component 231 is the output end of the lifting speed reducer; the lifting coupler connects the output shaft of the lifting motor with the input end of the lifting speed reducer; a lifting coupler connects the output end of the lifting speed reducer with the lifting screw 232; the lifting speed reducer adjusts the output rotating speed of the lifting motor to a rotating speed suitable for driving the lifting screw 232; the lifting screw 232 is in threaded connection with the lifting rod 234, and the axial movement of the lifting rod 234 is realized by the torque transmitted by the lifting motor assembly 231 through the lifting guide sleeve 233; the lifting guide sleeve 233 is fixedly connected with the lifting motor assembly 231; the outer wall sliding key 31 of the lifting rod 234 is matched with the inner wall sliding groove 32 of the lifting guide sleeve 233; the lifting guide sleeve 233 radially limits the lifting rod 234, so that the axial movement of the lifting rod 234 is ensured; the lower clamping mechanism 22 comprises a lower guide sleeve 221, a lower motor assembly 222, a lower screw 223, a lower clamping rod 224 and a lower clamping piece 2241 which are connected with the end part of the lifting rod 234; the output end of the lower motor assembly 222 is coaxially and fixedly connected with the lower screw 223, so that torque is transmitted to the lower screw 223; the lower motor assembly 222 includes a lower motor, a lower coupling, a lower housing with a lower housing; the lower motor is used for outputting torque; the lower coupler is used for connecting an output shaft of the lower motor with other shafts; the lower housing is used for mounting other parts of the lower motor assembly 222; the lower housing covers the components of the lower motor assembly 222 including the lower frame inside, leaving only one hole for the output end of the lower motor assembly 222 to pass through; when the lower motor is a low-speed motor, the output end of the lower motor assembly 222 is the output shaft of the lower motor; the lower coupling directly connects the output shaft of the lower motor with the lower screw 223; when the lower motor is a high speed motor, the lower motor assembly 222 also includes a lower reducer; the output end of the lower motor assembly 222 is the output end of the lower speed reducer; the lower shaft coupling connects the output shaft of the lower motor with the input end of the lower speed reducer; a lower coupling connects the output of the lower reducer to the lower screw 223; the lower decelerator adjusts the output rotation speed of the lower motor to a rotation speed suitable for the lower screw 223; the end part of the lower screw 223 is connected with the lower clamping rod 224 through threads, and the torque transmitted by the lower motor assembly 222 is changed into the axial movement of the lower screw 223 through the lower guide sleeve 221; the lower guide sleeve 221 is fixedly connected with the end part of the lifting rod 234 and the lower motor assembly 222 respectively; the axial movement of the lifting rod 234 can be changed into the vertical movement of the upper motor assembly 211 and the lower motor assembly 222, and then the lifting of the whole operation platform 1 is changed; the outer wall sliding key 31 of the lower clamping rod 224 is matched with the inner wall sliding groove 32 of the lower guide sleeve 221; the lower guide sleeve 221 radially limits the lower clamping rod 224, so that the axial movement of the lower clamping rod 224 is ensured; the end part of the lower clamping rod 224 is provided with a lower clamping piece 2241 matched with the side surface of the vertical rod 0; the lower clamping piece 2241 is connected with the vertical rod 0 and can form a fulcrum of the operation platform 1; the supporting point acts on the vertical rod 0 from three sets of directions surrounding the vertical rod 0 and more, so that the supporting effect is stable; the upper clamping mechanism 21 and the lower clamping mechanism 22 alternately support the vertical rod 0, and the lifting mechanism 23 acts during the supporting period, so that the working platform 1 is formed to ascend stepwise or descend stepwise. The lifting assembly 2 in this embodiment has three sets.

Compared with the prior art, the upper clamping mechanism 21 and the lower clamping mechanism 22 alternately support the vertical rod 0, and the lifting mechanism 23 acts during the period, so that the step-up or step-down of the working platform 1 is formed. When the pole climbing device works, the occupied ground space is small, traffic is not influenced, and all proper heights can be lifted; the work platform 1 has a large space and can carry enough accessories.

The upper clamping rod 214 and the lower clamping rod 224 are respectively connected with the upper clamping piece 2141 and the lower clamping piece 2241 through spherical pairs, so that the inclination angles of the upper clamping piece 2141 and the lower clamping piece 2241 can be adaptively changed, and the clamping effect of the upper clamping piece 2141 and the lower clamping piece 2241 is enhanced.

The outer wall sliding key 31 of the upper clamping rod 214 and the inner wall sliding groove 32 of the upper guide sleeve 213, and the outer wall sliding key 31 of the lower clamping rod 224 and the inner wall sliding groove 32 of the lower guide sleeve 221 are symmetrically arranged; the sliding key 31 is arranged on the outer wall of the upper clamping rod 214 and the outer wall of the lower clamping rod 224; the chute 32 is arranged on the inner wall of the upper guide sleeve 213 and the inner wall of the lower guide sleeve 221; this ensures a radial limiting effect between the upper and lower clamping bars 224 and the upper and lower guide sleeves 221.

The upper guide sleeve 213 is fixedly connected with the bottom of the working platform 1 through two reinforcing ribs 13 and is used for fixedly connecting the upper clamping mechanism 21 with the working platform 1 and reinforcing the connection strength of the upper clamping mechanism.

The working platform 1 comprises a left semicircular ring body 14 and a right semicircular ring body 15; the ends of the left semicircular ring body 14 and the right semicircular ring body 15 are detachably connected through a pin 16; wherein, one pin 16 is removed, the left semicircular ring body 14 and the right semicircular ring body 15 can be opened and closed like scissors, so that the upright rod 0 is conveniently enclosed in the column penetrating hole 11.

The electric screw stepping type pole-climbing device also comprises three sets of supporting components 4 and more than three sets of supporting components; the supporting components 4 are uniformly distributed around the circumference of the axis of the working platform 1; the support component 4 supports the operation platform 1; the support assembly 4 comprises a vertical column 41 and a universal wheel 42 arranged at the bottom of the vertical column 41; the universal wheel 42 is positioned beyond the lower clamping mechanism 22; the universal wheels 42 can help the working platform 1 to move on the ground for a short distance, so that the upright rod 0 is conveniently enclosed in the column penetrating hole 11. The number of support members 4 in this embodiment is 3.

The tail end of the lower motor assembly 222 is provided with a vertical guide wheel 2221; the work platform 1 extends downwards to have a vertical guide rail 17 which is matched with the vertical guide wheel 2221, not only provides guidance for the vertical lifting of the work platform 1, but also reduces the friction load at the position of the guide wheel and the guide rail.

The rising process of the utility model comprises the following steps:

(1) assembly work platform 1

The left semicircular ring body 14 and the right semicircular ring body 15 are horizontally buckled together, and the upright rod 0 surrounds the column penetrating hole 11 in the center of the operation platform 1;

(2) centering work platform 1

The upper clamping rod 214 is driven by the upper motor assembly 211, and the lower clamping rod 224 is driven by the lower motor assembly 222, so that the upper clamping rod 214 and the lower clamping rod 224 are in a retracted state; then simultaneously extending the upper clamping rods 214 of all the upper clamping mechanisms 21 and the lower clamping rods 224 of the lower clamping mechanisms 22; until all the upper clamping pieces 2141 are connected with the vertical rod 0 and all the lower clamping pieces 2241 are connected with the vertical rod 0; because the extension time of all the upper clamping bars 214 is the same, the extension length of the upper clamping bars 214 is the same; the extension time of all the lower clamping rods 224 is the same, and the extension length of the lower clamping rods 224 is the same; the working platform 1 is vertically centered;

(3) the upper clamping lever 214 is retracted in a first step; when the upper clamping piece 2141 is out of contact with the pole type telegraph pole, the lifting rod 234 starts to extend outwards, so that the upper clamping mechanism 21 and the working platform 1 are lifted until the lifting rod 234 extends outwards to the limit position;

(4) the upper clamping rod 214 starts to extend outwards until the upper clamping piece 2141 is in stable contact with the vertical rod 0 to form a stable pivot point of the working platform 1; the lower clamping lever 224 then begins to retract; when the lower clamping piece 2241 is out of contact with the upright 0, the lifting rod 234 begins to retract, thereby lifting the lower clamping mechanism 22 until the lifting rod 234 retracts to the limit position; the lower clamping lever 224 begins to extend outwards until the lower clamping piece 2241 is in stable contact with the upright 0, forming a stable fulcrum between the lower clamping mechanism 22 and the upright 0;

(5) repeating the steps (3) and (4) to enable the pole climbing device to stably ascend. When the pole climbing device is lifted to the working height, the lifting rod 234 of the lifting mechanism 23 is in a retracted state, and the upper clamping mechanism and the lower clamping mechanism are in a propping state with the vertical pole 0, so that the safety operation of personnel is ensured.

The descent process of the utility model comprises the following steps:

s1 initial state of pole climbing device

The lifting rod 234 is in a retracted state; the upper clamping pieces 2141 and the lower clamping pieces 2241 of all lifting assemblies 2 are in stable contact with the vertical rod 0 to form an upper stable fulcrum and a lower stable fulcrum, so that the climbing rod device is in stable contact with the vertical rod 0;

s2, the lower clamping rod 224 is retracted in a first step; when lower clamping tab 2241 is out of contact with pole 0, lifting bar 234 begins to extend outwardly, thereby lowering lower clamping mechanism 22 until lifting bar 234 extends to a limit position;

s3, the lower clamping rod 224 starts to extend outwards until the lower clamping piece 2241 is in stable contact with the vertical rod 0 to form a stable pivot point of the lower clamping mechanism 22; the upper clamping lever 214 then begins to retract; when the upper clamping piece 2141 is out of contact with the upright 0, the lifting rod 234 starts to retract, so that the upper clamping mechanism 21 and the working platform 1 descend until the lifting rod 234 retracts to the limit position; the upper clamping rod 214 starts to extend outwards until the upper clamping piece 2141 is in stable contact with the vertical rod 0 to form a stable pivot point of the working platform 1;

s4, repeating the steps S2 and S3 to enable the pole climbing device to stably descend. When the pole climbing device is lowered to the ground, the lifting rod 234 of the lifting mechanism 23 is in a retracted state.

Embodiment two: the second embodiment is basically the same as the first embodiment, and the same points are not repeated, except that: the tail end of the lower motor assembly 222 is provided with a horizontally arranged U-shaped frame 2222; the guide wheels are arranged at the end parts of the U-shaped frames 2222; the vertical guide rail 17 is of a C-shaped column structure; the C-shaped column comprises an inner end surface and two free ends; a gap is arranged between the two free ends; the closed end of the U-shaped frame 2222 is provided with a guide column; the guide post is inserted into the notch; the guide wheel is connected with the inner end surface of the C-shaped column; the closed end of the U-shaped frame 2222 is connected with the free end of the C-shaped column, so as to realize vertical guiding limit of the lifting mechanism 23.

The bottom end of the vertical guide rail 17 is provided with a plug 171, so that foreign matters are prevented from entering the C-shaped vertical guide rail 17, and the blocking of the guide wheels is avoided.

Extension plates 141 are extended outwards from both ends of the left semi-circular ring body 14; the extension plate 141 is provided with a vertical pin hole A1411; two overhanging clamping plates 151 are arranged at the upper and lower ends of the right semicircular ring body 15; the clamping plate 151 is provided with a pin hole B1511 matched and corresponding to the pin hole A1411; pin 16 is inserted into pin hole A1411 and pin hole B1511; thus, when the left semicircular body 14 and the right semicircular body 15 are opened relatively, the left semicircular body 14 and the right semicircular body 15 are prevented from interfering with each other.

Spliced fences 18 are arranged at the edges of the working platform 1 and the column penetrating holes 11 and used for high-altitude protection, so that falling risks are avoided; the rail 18 arranged at the edge of the column penetrating hole 11 is an inner rail 18; the fence 18 arranged at the edge of the working platform 1 is a peripheral fence 18.

Claims (6)

1. An electric screw stepping type pole-climbing device is characterized in that: comprises an operation platform and a lifting assembly; the operation platform is of a horizontal buckling structure, and a column penetrating hole for the upright rod to penetrate is formed in the center of the operation platform; the buckling line of the operation platform passes through the column penetrating hole; the lifting assemblies are provided with three or more sets and are uniformly distributed at the bottom of the operation platform along the circumference; the lifting assembly comprises an upper clamping mechanism, a lower clamping mechanism and a lifting mechanism; the upper clamping mechanism comprises an upper motor component, an upper screw rod, an upper guide sleeve, an upper clamping rod and an upper clamping piece which are fixedly connected with the operation platform; the output end of the upper motor component is coaxially and fixedly connected with the upper screw rod; the upper screw rod is connected with the upper clamping rod through threads; the upper guide sleeve is fixedly connected with the upper motor assembly; a sliding key on the outer wall of the upper clamping rod is matched with a sliding groove on the inner wall of the upper guide sleeve; an upper clamping piece matched with the side surface of the vertical rod is arranged at the end part of the upper clamping rod; the lifting mechanism comprises a lifting motor component, a lifting screw rod, a lifting guide sleeve and a lifting rod which are connected with the upper guide sleeve; the output end of the lifting motor component is coaxially and fixedly connected with the lifting screw rod; the lifting screw rod is connected with the lifting rod through threads; the lifting guide sleeve is fixedly connected with the lifting motor component; the sliding key on the outer wall of the lifting rod is matched with the sliding groove on the inner wall of the lifting guide sleeve; the lower clamping mechanism comprises a lower guide sleeve, a lower motor assembly, a lower screw, a lower clamping rod and a lower clamping piece which are connected with the end part of the lifting rod; the output end of the lower motor component is coaxially and fixedly connected with the lower screw rod; the lower screw rod end is connected with the lower clamping rod through threads; the lower guide sleeve is fixedly connected with the end part of the lifting rod and the lower motor assembly respectively; the sliding key on the outer wall of the lower clamping rod is matched with the sliding groove on the inner wall of the lower guide sleeve; the end part of the lower clamping rod is provided with a lower clamping piece matched with the side surface of the vertical rod.

2. The motorized screw progressive addition pole-climbing device of claim 1, wherein: the upper guide sleeve is fixedly connected with the bottom of the operation platform through a reinforcing rib.

3. The motorized screw progressive addition pole-climbing device of claim 1, wherein: the operation platform comprises a left semicircular ring body and a right semicircular ring body; the ends of the left semicircular ring body and the right semicircular ring body are connected through a detachable pin shaft.

4. The motorized screw progressive addition pole-climbing device of claim 1, wherein: the device also comprises three or more sets of supporting components; the supporting components are uniformly distributed around the circumference of the axis of the operation platform; the support assembly comprises a vertical column and universal wheels arranged at the bottom of the vertical column; the universal wheel position exceeds the lower clamping mechanism.

5. The motorized screw progressive addition pole-climbing device of claim 1, wherein: the tail end of the lower motor assembly is provided with a vertical guide wheel; the working platform downwards extends to form a vertical guide rail matched with the vertical guide wheel.

6. The motorized screw progressive addition pole-climbing device of claim 5, wherein: the tail end of the lower motor assembly is provided with a U-shaped frame which is horizontally arranged; the guide wheel is arranged at the end part of the U-shaped frame; the vertical guide rail is of a C-shaped column structure; the C-shaped column comprises an inner end surface and two free ends; a gap is arranged between the two free ends; the closed end of the U-shaped frame is provided with a guide column; the guide post is inserted into the notch; the guide wheel is connected with the inner end surface of the C-shaped column; the closed end of the U-shaped frame is connected with the free end of the C-shaped column.