A modular wind-resistant and anti-falling aerial work platform for cable tower and construction method thereof

Abstract

The invention discloses a modular anti-wind and anti-falling aerial work platform for a cable tower and a construction method thereof, comprising: a suspension platform, comprising two first platforms and two second platforms arranged relatively, any platform being connected to a suspension mechanism at the top of the tower through a lifting mechanism, the first platform comprising a main basket and two auxiliary baskets, which are arranged on the inner side wall of the main basket and move along the main basket under the action of a first driving mechanism; the second platform comprising two strip-shaped hanging baskets, which are mutually sleeved and relatively moved under the action of a second driving mechanism, and the outer ends of the strip-shaped hanging baskets are detachably connected to adjacent auxiliary baskets; an anti-falling system, wherein an anti-falling groove is arranged on the inner side wall of the corresponding platform; and an anti-wind system, wherein one end of the anti-wind rope is fixed on the suspension mechanism, and the other end is downwardly passed through a guide wheel located on the corresponding platform and then anchored at the bridge deck. The invention improves the adaptability of the work platform to different cable tower structures and different construction environments, and ensures the comprehensiveness, stability and safety of the maintenance construction.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering, and more specifically, to a modular wind-resistant and anti-falling aerial work platform for a cable tower and a construction method thereof. Background Art

[0002] Affected by the technical level, environmental factors, structural form, etc., the cable towers of some bridges are prone to disease after long-term use, and need to be inspected and maintained regularly. At present, the inspection and maintenance of bridge cable towers at home and abroad mainly rely on standard hanging baskets to carry out construction. This inspection method has the following problems in practical application: the standard hanging basket cannot adapt well to the variable cross-section cable tower structure, and it is impossible to take into account the full range of cable tower surface for disease inspection during lifting; when inspecting the segments of the cable tower over 100 meters, the operating conditions of the standard hanging basket are greatly affected by external environmental factors, and the wind resistance stability is insufficient, especially when there are sudden gusts or strong winds, which can easily cause the hanging basket to shake horizontally, and there is also a risk of collision with the cable tower; when using the standard hanging basket for inspection and construction without interrupting traffic, some super-large highway bridges cannot set up protective scaffolding on the bridge deck due to various factors. When using the standard hanging basket to inspect the cable towers of such bridges, it is impossible to take into account the needs of not affecting normal traffic operations and avoiding safety risks such as falling objects from high altitude.

[0003] In order to solve the above problems, it is necessary to design a modular wind-resistant and fall-proof aerial work platform for cable towers and its construction method to ensure the comprehensiveness, stability and safety of maintenance construction. Summary of the invention

[0004] The purpose of the present invention is to provide a modular wind-resistant and fall-proof aerial work platform for a cable tower and a construction method thereof, so as to improve the adaptability of the work platform to different cable tower structures and different construction environments, and ensure the comprehensiveness, stability and safety of maintenance construction.

[0005] In order to achieve these purposes and other advantages according to the present invention, a modular wind-resistant and fall-proof aerial work platform for a cable tower is provided, comprising:

[0006] A suspension platform, comprising four platforms horizontally arranged in sequence along different sides of a cable tower cross section, any platform being connected to a suspension mechanism at the top of the tower through a lifting mechanism, the four platforms comprising two first platforms arranged opposite to each other and two second platforms arranged opposite to each other, any first platform comprising a main basket and two auxiliary baskets, the main basket being arranged along the longitudinal direction of the bridge, any auxiliary basket being horizontally arranged on a side wall adjacent to the cable tower and moving along the length direction of the main basket under the action of a first driving mechanism; any second platform comprising two bar-shaped hanging baskets arranged continuously along the transverse direction of the bridge, which are mutually sleeved and relatively moved under the action of a second driving mechanism, and the outer ends of the two bar-shaped hanging baskets are respectively detachably connected to the auxiliary baskets of the two first platforms;

[0007] An anti-fall system, comprising four groups of anti-fall grooves, which correspond one to one with the four platforms, and any group of anti-fall grooves is arranged on the side wall of the corresponding platform adjacent to the cable tower;

[0008] The wind-resistant system includes four groups of wind-resistant ropes, which correspond to the four platforms one by one. One end of each group of wind-resistant ropes is fixed to the suspension mechanism, and the other end is passed downward through the guide wheel on the corresponding platform and then anchored on the bridge deck.

[0009] The control system comprises a controller which is electrically connected to the lifting mechanism, the first driving mechanism and the second driving mechanism; and a control terminal which is electrically connected to the controller.

[0010] Preferably, the modular wind-resistant and fall-proof aerial work platform for the cable tower, the lifting mechanism includes a plurality of lifting hangers, which are arranged at intervals on the corresponding platforms, and each lifting hanger is provided with a hoist, a bearing seat, a guide wheel mechanism and a safety lock at intervals; a plurality of lifting ropes, which are arranged corresponding to the plurality of lifting hangers, one end of any lifting rope is hung on the hanging mechanism, and the other end is downwardly passed through the bearing seat and the guide wheel mechanism on the corresponding lifting hanger in sequence, and then connected to the rope feed end of the hoist; a plurality of safety ropes, which are arranged corresponding to the plurality of lifting hangers, one end of any safety rope is hung on the hanging mechanism, and the other end is downwardly passed through the bearing seat and the guide wheel mechanism on the corresponding lifting hanger in sequence, and then connected to the safety lock;

[0011] Among them, the multiple lifting hangers located on the first platform are arranged corresponding to the two auxiliary baskets, any lifting hanger is mounted on the main basket and drives the corresponding auxiliary basket to move under the action of the first driving mechanism; the multiple lifting hangers located on the second platform are arranged at intervals on the strip hanging basket and fixedly connected thereto.

[0012] Preferably, the modular wind-resistant and fall-proof aerial work platform for the cable tower further includes four auxiliary lifting devices, which correspond to the four platforms one by one, and any auxiliary lifting device includes a leg, one end of which is fixed on the side wall of the corresponding platform adjacent to the cable tower; and a wall wheel, which is rotatably connected to the other end of the leg through a pin shaft, and the wheel surface of the wall wheel abuts against the wall of the adjacent cable tower.

[0013] Preferably, the modular wind-resistant and fall-proof aerial work platform for the cable tower also includes a safety information detection system, which includes four detection units, which correspond to the four platforms one by one, and any detection unit includes an electrical connection with the controller. The detection unit includes a wind speed and direction sensor, which is arranged on the top of the corresponding platform; a camera, which is arranged above the corresponding platform and is used to collect construction image data of the platform; a load limiter, which is arranged at the lifting mechanism of the corresponding platform and is used to detect lifting internal stress; an inclinometer, which is arranged at the end of the corresponding platform and is used to detect the construction posture data of the platform.

[0014] Preferably, the cable tower uses a modular wind-resistant and fall-proof aerial work platform, and the suspension mechanism includes a first truss, which is erected on the top of the cable tower crown, and the lifting mechanism is connected to the first truss; a second truss, which is circumferentially arranged at the lower part of the cable tower crown, and the wind-resistant system is connected to the second truss.

[0015] Preferably, in the modular wind-resistant and fall-proof aerial work platform for the cable tower, the first driving mechanism comprises a first track, which is arranged between the main basket and the lifting hanger along the length direction of the main basket; a first motor, which is arranged to drive the lifting hanger to move along the first track;

[0016] The second driving mechanism includes a second track, which is arranged between the two bar hanging baskets along the length direction of the bar hanging baskets; and a second motor, which is arranged to drive the two bar hanging baskets to move relative to each other along the second track.

[0017] Preferably, the cable tower uses a modular wind-resistant and fall-proof aerial work platform, and the outer ends of the two bar-shaped hanging baskets are detachably connected to the auxiliary basket through connecting devices, respectively, and the connecting device includes a clamp. In the connected state, one first platform and two second platforms together form a C-shaped semi-enclosed platform, or two first platforms and two second platforms together form a U-shaped fully enclosed platform.

[0018] Preferably, the cable tower uses a modular wind-resistant and fall-proof aerial work platform, the group of anti-fall grooves includes a plurality of anti-fall grooves, which are arranged at intervals on the top of the side wall of the corresponding platform adjacent to the cable tower, the plurality of anti-fall grooves include fixed anti-fall grooves and sliding anti-fall grooves, the sliding anti-fall groove includes an anti-fall plate, which is slidably connected to a third track arranged on the side wall of the platform through a hinge mechanism, the third track is arranged along the length direction of the platform, the hinge mechanism includes a first hinge plate and a second hinge plate hinged to each other, and the hinge axis is arranged along the length direction of the third track, the first hinge plate is slidably arranged on the third track, the second hinge plate is fixedly connected to the anti-fall plate, and a limit block is provided between the first hinge plate and the second hinge plate, which is arranged to limit the maximum rotation angle of the hinge mechanism.

[0019] Preferably, the cable tower uses a modular wind-resistant and fall-proof aerial work platform, and the fall-proof system further comprises four fall-proof nets, which are respectively arranged on the top of the side walls adjacent to the cable tower of the four auxiliary baskets of the two first platforms.

[0020] The present invention also provides a construction method of a modular wind-resistant and fall-proof aerial work platform for a cable tower, comprising:

[0021] S1. Assemble the four platforms of the suspension platform under the tower respectively, and then integrate each platform with the corresponding anti-fall system components;

[0022] S2. Install the suspension mechanism on the top of the tower;

[0023] S3, moving the four platforms to the side walls of the cable tower according to the design requirements, and then installing the lifting mechanism, wind-resistant system components and control system corresponding to each platform. At this time, each platform is hung on the hanging mechanism and can climb on the corresponding cable tower side wall along the corresponding wind-resistant rope under the action of the lifting mechanism;

[0024] S4, controlling each platform to climb to the same construction height through the control system, and then adjusting the working states of the first drive mechanism and the second drive mechanism, so that the spacing and position of the two auxiliary baskets in the first platform and the spacing and position of the outer ends of the two strip hanging baskets in the second platform are adapted to the cross-sectional structure of the cable tower at the construction height, and then the outer ends of each strip hanging basket are fixedly connected to the adjacent auxiliary baskets, so that the four platforms are surrounded along the circumference of the cable tower cross section to form a U-shaped fully enclosed platform, and the fully enclosed platform is used to perform maintenance construction of the middle and lower tower columns;

[0025] S5, disconnecting the outer end of each strip hanging basket from the adjacent auxiliary basket, controlling each platform to continue to climb, and repeating the step of S4 until the first platform located on the inner side of the cable tower can no longer be lifted;

[0026] S6, control the first platform and two second platforms located outside the cable tower to continue to climb to the same construction height, and then adjust the working states of the first drive mechanism and the second drive mechanism, so that the spacing and position of the two auxiliary baskets in the first platform and the outer end position of the strip hanging basket adjacent to the first platform in the second platform are adapted to the cross-sectional structure of the cable tower at the construction height, and then fix each auxiliary basket to the outer end of the adjacent strip hanging basket, so that the above three platforms are surrounded along the circumference of the cable tower cross section to form a C-shaped semi-enclosed platform, and use the semi-enclosed platform to perform upper tower column maintenance construction;

[0027] S7, release the connection between each auxiliary basket and the outer end of the adjacent strip hanging basket, control the three platforms to continue climbing, and repeat the step of S6 until the full-height maintenance construction of the side tower column is completed.

[0028] The present invention has at least the following beneficial effects:

[0029] 1. The present invention realizes the adaptation to the variable-section cable tower structure through the relative sliding structure of the first and second platforms. At the same time, the ends of the first and second platforms after adapting to the change of the cable tower section can be connected in sequence to form an integrated suspended platform structure (C-shaped semi-enclosed platform or U-shaped fully enclosed platform) surrounding the tower body, which can effectively resist wind loads, so that the working platform can solve the problem of insufficient wind resistance stability while adapting to the variable-section cable tower structure, thereby ensuring the comprehensiveness, stability and safety of the cable tower maintenance construction;

[0030] 2. The suspension platform and the corresponding wind-resistant and fall-proof system of the present invention adopt a modular structure. Each platform can be connected as a whole or operate relatively independently according to actual construction needs. Compared with the standard hanging basket form, the modular wind-resistant and fall-proof aerial work platform of the present invention has the advantages of strong adaptability, strong resistance to environmental interference, high flexibility, high stability, and high safety factor (preventing falling objects from high altitude). It can be widely used in aerial work projects and has good application prospects.

[0031] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the plan structure of a modular wind-resistant and fall-proof aerial work platform for a cable tower according to one embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the split structure of the first platform and the second platform in the above embodiment;

[0034] Figure 3 It is a schematic diagram of the front elevation structure of the suspension mechanism described in the above embodiment;

[0035] Figure 4 is a schematic diagram of the side elevation structure of the suspension mechanism described in the above embodiment;

[0036] Figure 5 is a schematic diagram of the planar structure of the suspension mechanism described in the above embodiment;

[0037] Figure 6 A schematic diagram of the construction structure of S6 in a construction method of a modular wind-resistant and fall-proof aerial work platform for a cable tower according to an embodiment of the present invention;

[0038] Figure 7 It is a schematic diagram of the elevation structure of the C-shaped semi-enclosed platform described in the above embodiment.

[0039] Description of reference numerals:

[0040] 11. C-shaped semi-enclosed platform; 12. U-shaped fully enclosed platform; 13. First platform; 131. Main basket; 132. First lifting hanger; 133. Auxiliary basket; 134. First motor; 135. First track; 14. Second platform; 141. Outer basket; 142. Second lifting hanger; 143. Inner basket; 144. Second motor; 145. Second track; 21. Wall wheel; 22. Outrigger; 31. Sliding anti-fall groove; 32. Fixed anti-fall groove; 33. Anti-fall net; 41. Cable tower cross section; 42. Tower crown; 51. Hoist; 52. Bearing seat; 53. Guide wheel mechanism; 54. Lifting rope; 55. Safety rope; 56. Safety lock; 61. Wind-resistant rope; 71. Hoop; 81. First truss; 82. Second truss. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0042] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] like Figure 1-7 As shown, the present invention provides a modular wind-resistant and fall-proof aerial work platform for a cable tower, comprising:

[0044] A suspension platform, comprising four platforms horizontally arranged in sequence along different sides of a cable tower cross section 41, any platform being connected to a suspension mechanism at the top of the tower through a lifting mechanism, the four platforms comprising two first platforms 13 arranged opposite to each other and two second platforms 14 arranged opposite to each other, any first platform 13 comprising a main basket 131 and two auxiliary baskets 133, the main basket 131 being arranged along the longitudinal direction of the bridge, any auxiliary basket 133 being horizontally arranged on a side wall of the main basket 131 adjacent to the cable tower and moving along the length direction of the main basket 131 under the action of a first driving mechanism; any second platform 14 comprising two bar-shaped hanging baskets arranged continuously along the transverse direction of the bridge, which are mutually sleeved and relatively moved under the action of a second driving mechanism, and the outer ends of the two bar-shaped hanging baskets are respectively detachably connected to the auxiliary baskets 133 of the two first platforms 13;

[0045] An anti-fall system, comprising four groups of anti-fall grooves, which correspond one to one with the four platforms, and any group of anti-fall grooves is arranged on the side wall of the corresponding platform adjacent to the cable tower;

[0046] The wind-resistant system includes four groups of wind-resistant ropes 61, which correspond to the four platforms one by one. One end of each group of wind-resistant ropes 61 is fixed to the suspension mechanism, and the other end is passed downward through the guide wheel on the corresponding platform and then anchored on the bridge deck.

[0047] The control system comprises a controller which is electrically connected to the lifting mechanism, the first driving mechanism and the second driving mechanism; and a control terminal which is electrically connected to the controller.

[0048] In the above technical solution, the main basket 131 and auxiliary basket 133 of the first platform 13 and the two bar-shaped hanging baskets of the second platform 14 are all three-dimensional frame structures with open tops, and their four sides and bottom are covered with protective nets for enclosure, forming a safe passage for construction workers to move freely and construct inside. Two first platforms 13 and two second platforms 14 are arranged around the circumference of the cable tower cross section 41, and each platform corresponds to a side surface of the cable tower column to be constructed, wherein the first platform 13 realizes the adaptation of the corresponding cable tower side structure through the relative movement of the auxiliary basket 133 and the main basket 131. Specifically, the main basket 131 fits the side of the cable tower, and the two auxiliary baskets 133 move from the two ends of the main basket 131 to the middle respectively until they abut against the outer wall of the cable tower. At this time, the spacing between the two auxiliary baskets 133 is just equal to the length of the cable tower side corresponding to the first platform 13, so that the construction area can completely cover the full length range of the cable tower side. The lateral protrusion structure of the auxiliary basket 133 is also conducive to meeting the adaptation of the cross-sectional shape of the cable tower with non-right-angle sides (such as Figure 1The auxiliary basket of the first platform on the left is shown in the figure), and the main basket and the auxiliary basket structure cooperate to achieve a semi-enclosed clamping of the tower wall on that side, which greatly increases the stability and safety when using the platform for maintenance and construction; the second platform adjusts the overall length of the second platform through the sliding sleeve structure of the two strip hanging baskets, thereby achieving the adaptation of the corresponding cable tower side structure (length). In this embodiment, the main basket 131 and the auxiliary basket 133 of the first platform 13, and the two strip hanging baskets of the second platform 14 are all aluminum alloy frame structures assembled in pieces and sections. They are processed and manufactured in pieces and sections in the factory. After the trial assembly is completed, they are transported to the site in pieces and sections for assembly and forming. The structural dimensions of the first platform 13 are adapted to the dimensions of the cable tower along the bridge, and the structural dimensions of the second platform are adapted to the dimensions of the cable tower across the bridge.

[0049] In actual application, since each platform is equipped with a lifting mechanism, the outer end of the strip hanging basket can be selectively connected to the adjacent auxiliary basket 133: when each platform is lifted to the same construction height, in order to adapt to the cross-sectional shape of the cable tower, the two auxiliary baskets 133 of the first platform 13 and the two ends of the second platform 14 (i.e., the outer ends of the two strip hanging baskets) are all located at the four corners of the cable tower cross section. At this time, the auxiliary basket 133 can be fixedly connected to the outer ends of the adjacent strip hanging baskets, so that the four platforms form an integral fully enclosed platform along the contour line of the cable tower cross section, that is, the suspension platform is matched with the outer sleeve on the outside of the cable tower, and after each platform is connected as a whole, it is restricted by the cable tower body structure and cannot be easily shaken, which greatly improves the wind resistance stability and construction safety of the suspension platform; when the outer end of the strip hanging basket is not connected to the adjacent auxiliary basket, each platform can climb and operate independently under the action of the corresponding lifting mechanism, that is, the construction personnel located on different platforms can independently repair and construct the cable tower positions at different heights according to the actual construction progress and needs, which effectively improves the construction flexibility.

[0050] At the same time, the suspension platform is also equipped with an anti-fall system and a wind-resistant system, wherein any group of anti-fall grooves is a plurality of anti-fall grooves arranged at intervals along the inner side line of the corresponding platform; any group of wind-resistant ropes 61 can be set as a plurality of wind-resistant ropes 61, which correspond one-to-one with (multiple) guide wheels arranged on the side wall of the corresponding platform, and the wind-resistant ropes 61 can guide the lifting of the platform while further improving the wind-resistant stability of the platform during lifting and construction. Here, the inner side of the platform refers to the side of the platform directly adjacent to (facing) the cable tower, and the setting of the anti-fall groove can effectively fill the gaps that may exist between each platform and the cable tower wall during construction, thereby reducing the risk of falling objects from high altitude during maintenance construction and achieving an anti-fall effect.

[0051] The present invention designs a modular wind-resistant and anti-falling aerial work platform to solve the problems existing in the maintenance of variable-section cable towers such as diamond-type and A-type. The adaptation to the variable-section cable tower structure is achieved through the relative sliding structure of the first and second platforms. At the same time, each platform can be connected as a whole or relatively independently operated according to actual construction needs. The integrated suspension platform structure embraces the tower body and can effectively resist wind loads. In addition, the stability and safety of the work platform are further enhanced by the matching anti-falling system and wind-resistant system, effectively solving the problems of falling objects from high altitude and shaking of the hanging basket. Compared with the standard hanging basket form, the modular wind-resistant and anti-falling aerial work platform of the present invention has the advantages of strong adaptability, strong resistance to environmental interference, high flexibility, high stability, high safety factor, etc. It can be widely used in aerial work (not limited to maintenance) projects and has good application prospects.

[0052] In another technical solution, the modular wind-resistant and fall-proof aerial work platform for the cable tower, the lifting mechanism includes a plurality of lifting hangers, which are arranged at intervals on the corresponding platform, and each lifting hanger is provided with a hoist 51, a bearing seat 52, a guide wheel mechanism 53 and a safety lock 56 at intervals; a plurality of lifting ropes 54, which are arranged corresponding to the plurality of lifting hangers, one end of any lifting rope 54 is hung on the hanging mechanism, and the other end is downwardly passed through the bearing seat 52 and the guide wheel mechanism 53 on the corresponding lifting hanger in sequence, and then connected to the rope feed end of the hoist 51; a plurality of safety ropes 55, which are arranged corresponding to the plurality of lifting hangers, one end of any safety rope 55 is hung on the hanging mechanism, and the other end is downwardly passed through the bearing seat 52 and the guide wheel mechanism 53 on the corresponding lifting hanger in sequence, and then connected to the safety lock 56;

[0053] Among them, the multiple lifting hangers located on the first platform 13 are arranged corresponding to the two auxiliary baskets 133, and any lifting hanger is mounted on the main basket 131 and drives the corresponding auxiliary basket 133 to move under the action of the first driving mechanism; the multiple lifting hangers located on the second platform 14 are arranged at intervals on the bar basket and fixedly connected thereto.

[0054] In the above technical solution, each platform is correspondingly equipped with a lifting mechanism, and each lifting mechanism together constitutes a lifting system. This arrangement does not need to consider the synchronization problem in the lifting of each platform. When the ends of adjacent platforms are not fixedly connected, each platform can be lifted relatively independently and then connected after being lifted to the same height position; after the ends of the first platform 13 and the second platform 14 are fixedly connected, the working platform forms an overall structure that embraces the tower body, which has strong wind resistance and stability. Construction personnel can walk between adjacent platforms to realize maintenance and construction on different sides of the cable tower, which greatly improves the flexibility of construction. When it is necessary to lift the platform, the hoist 51 in the corresponding lifting mechanism is started to continuously feed the rope, and the length of the lifting rope 54 between the suspension mechanism and the lifting hanger is shortened, and the platform can climb along the corresponding tower wall (upward) under the guidance of the wind-resistant rope 61.

[0055] Specifically, the multiple lifting hangers on the first platform 13 are configured as two first lifting hangers 132, and the two auxiliary baskets 133 are correspondingly fixedly connected to the inner side of the above two first lifting hangers 132 (i.e., the side wall of the first lifting hanger adjacent to the cable tower), so that a single auxiliary basket 133 and the corresponding first lifting hanger 132 together form a mobile unit, and the first driving mechanism is used to drive the mobile unit to move along the length direction of the main basket. The layout position of the lifting hanger on the second platform 14 should not interfere with the relative sliding of the two bar hanging baskets. In this embodiment, the two mutually nested bar hanging baskets are configured as the outer hanging basket 141 that is nested on the outside, and the inner hanging basket 143 that is nested on the inside. The multiple lifting hangers on the second platform 14 are configured as two second lifting hangers 142, which are relatively fixedly arranged at both ends of the outer hanging basket 141. Each lifting bracket is a three-dimensional frame structure mounted on the outside of the corresponding platform, and its upper structure is arranged above the platform so that other lifting mechanism components (such as the hoist 51, the bearing seat 52, the guide wheel mechanism 53, the safety lock 56, etc.) can be arranged without affecting the normal passage in the hanging basket. Among them, the bearing seat 52 and the guide wheel mechanism 53 are both installed on the top of the lifting bracket and play a guiding role, allowing the corresponding lifting rope 54 and the safety rope 55 to pass through in parallel; the hoist 51 is installed below the guide wheel mechanism 53, and the safety lock 56 can be a centrifugal safety lock, which is installed near the hoist 51 to ensure safety during lifting.

[0056] In another technical solution, the modular wind-resistant and anti-falling aerial work platform for the cable tower further includes four auxiliary lifting devices, which correspond to the four platforms one by one. Any auxiliary lifting device includes a leg 22, one end of which is fixed on the side wall of the corresponding platform adjacent to the cable tower; a wall wheel 21, which is rotatably connected to the other end of the leg 22 through a pin, and the wheel surface of the wall wheel 21 abuts against the tower wall of the adjacent cable tower. Among them, the structural dimensions of each leg 22 need to be determined according to parameters such as the maintenance distance between the corresponding platform and the cable tower surface. The direction of the wall wheel 21 is set to be upward along the corresponding tower wall (i.e., vertically set), so that when the corresponding platform is driven to lift by the lifting mechanism, the sliding friction between the platform and the side wall of the cable tower is converted into rolling friction between the wall wheel and the tower wall, reducing the wear on the tower wall, and also reducing the internal stress of the lifting mechanism, which is conducive to the smooth and stable climbing action of the platform.

[0057] In another technical solution, the modular wind-resistant and anti-falling aerial work platform for the cable tower also includes a safety information detection system, which includes four detection units, which correspond to the four platforms one by one, and any detection unit includes an electrical connection with the controller, and the detection unit includes a wind speed and direction sensor, which is arranged at the top of the corresponding platform; a camera, which is arranged above the corresponding platform and is used to collect the construction image data of the platform; a load limiter, which is arranged at the lifting mechanism of the corresponding platform and is used to detect the lifting internal stress; an inclinometer, which is arranged at the end of the corresponding platform and is used to detect the construction posture data of the platform. Among them, the wind speed and direction sensor uses an integrated wind speed and direction sensor, which is arranged at the outer end of the corresponding platform and is firmly connected to the top of the platform by screws; the camera is arranged at the top of the lifting hanger by screw connection, and its lens is arranged toward the lower platform; the load limiter is a pin-type sensor, which penetrates into the center of the pulley of the lifting mechanism (i.e., the guide wheel mechanism 53 in this embodiment) to monitor the internal stress of the lifting mechanism (i.e., the pulling force of the lifting cable 54); the inclinometer is also arranged at the top of the outer end of the corresponding platform. The real-time data monitored by the above sensors are transmitted to the controller via wired / wireless means. After identification and analysis, the controller displays the corresponding safety information on the control terminal. The construction personnel read the safety information data on the control terminal and adjust the construction status of each platform based on it. For example, when the wind speed exceeds the set warning limit, it is necessary to pay attention to keep the connection status of each platform as much as possible, so that the working platform as a whole embraces the tower body to ensure the safety of the construction status. Due to the small size of the components of the detection unit, their positions are not specifically shown in the attached figure.

[0058] In another technical solution, the modular wind-resistant and fall-proof aerial work platform for the cable tower, the suspension mechanism includes a first truss 81, which is erected on the top of the cable tower's crown 42, and the lifting mechanism is connected to the first truss 81; a second truss 82, which is circumferentially arranged at the lower part of the cable tower's crown 42, and the wind-resistant system is connected to the second truss 82. Specifically, the first truss 81 and the second truss 82 are both truss structures composed of short pieces of square steel, and each short piece of square steel is assembled and formed by connecting flanges, and each truss is anchored to the tower crown 42 with chemical anchor bolts. In this embodiment, Figure 3-5 As shown, the tower crown 42 is arranged at the top of the cable tower, and a step is formed between the bottom of the tower crown 42 and the cable tower body, so as to naturally form a double-layer tower top platform. The outer periphery of the double-layer tower top platform is provided with a guardrail, and the first truss 81 is erected on the upper tower top platform, and the second truss 82 is arranged above the lower tower top platform. A plurality of hanging points are respectively arranged on the first truss 81 and the second truss 82. The first truss 81 is used to hang the cable of the lifting mechanism, and the second truss 82 is used to hang the cable of the wind-resistant system (wind-resistant rope 61). On the one hand, the suspension mechanism is staggered in space to avoid mutual interference and entanglement of multiple groups of different cables during construction, which affects the smooth progress of the construction; on the other hand, the wind-resistant rope hung on the second truss can have better wind-resistant stability, which further ensures the safety and reliability of the construction.

[0059] In another technical solution, the modular wind-resistant and fall-proof aerial work platform for the cable tower, the first driving mechanism includes a first track 135, which is arranged between the main basket 131 and the lifting hanger along the length direction of the main basket 131; a first motor 134, which is arranged to drive the lifting hanger to move along the first track 135;

[0060] The second driving mechanism includes a second track 145 , which is arranged between the two bar hanging baskets along the length direction of the bar hanging baskets; and a second motor 144 , which is arranged to drive the two bar hanging baskets to move relative to each other along the second track 145 .

[0061] Specifically, the first track 135 is a rack set on the outer side wall of the main basket 131 (the side wall away from the adjacent tower wall), the first motor 134 is fixed on the corresponding lifting hanger, and the output shaft of the first motor 134 is meshed and connected with the rack through a gear, so that when the first motor 134 is working, its output shaft drives the gear to rotate, and then drives the lifting hanger to move along the rack, and the auxiliary basket 133 is fixed on the inner side wall of the lifting hanger (the side wall adjacent to the tower wall), and can be synchronously moved along the length direction of the main basket 131 under the drive of the lifting hanger. For the same first platform 13, the first track 135 of the two first driving mechanisms can be shared, and the first track 135 covers the full length range of the main basket 131. Similarly, the second track 145 can also be set as a rack, which is fixed on the outer side wall of the inner hanging basket 143 (the side wall away from the adjacent tower wall), and the second motor 144 is fixed on the outer side wall of the outer hanging basket 141 (the side wall away from the adjacent tower wall). The output shaft of the second motor 144 penetrates between the inner and outer hanging baskets 141 and is meshed with the rack (of the second track) through a gear. Thus, when the second motor 144 is working, the extension / retraction of the inner hanging basket 143 relative to the outer hanging basket 141 can be achieved through the matching connection between the gear and the rack. In addition, in order to ensure the sliding stability between the two bar hanging baskets, a C-shaped groove is also provided on the side wall of the outer hanging basket 141 (adjacent to the inner hanging basket 143), and a slider is correspondingly fixed on the side wall of the inner hanging basket 143 (adjacent to the outer hanging basket 141), which is matched and inserted into the C-shaped groove and slidably connected thereto. In this embodiment, the first motor 134 and the second motor 144 are both worm gear reduction motors.

[0062] In another technical solution, in the modular wind-resistant and fall-proof aerial work platform for the cable tower, the outer ends of the two bar-shaped hanging baskets are detachably connected to the auxiliary basket 133 through connecting devices, respectively. The connecting device includes a clamp 71. In the connected state, one first platform 13 and two second platforms 14 together form a C-shaped semi-enclosed platform 11, or two first platforms 13 and two second platforms 14 together form a U-shaped fully enclosed platform 12. Specifically, in the connected state, the outer ends of the bar-shaped hanging baskets are abutted and fixed to the side walls of the auxiliary basket 133. In actual construction, the connection form of the clamp 71 is flexible in application, allowing the outer ends of the bar-shaped hanging baskets to abut against the side walls of the auxiliary basket 133 in different directions, such as Figure 1As shown, in order to adapt to the curved surface of the left tower wall, the two auxiliary baskets 133 of the first platform 13 on the left side are further moved closer to the middle of the main basket 131 (until they abut against the tower wall). At this time, the end of the second platform 14 (the outer end of the outer hanging basket 141) arranged along the upper and lower tower walls is simultaneously fitted and abutted against the inner wall of the main basket 131 and the upper / lower side walls of the auxiliary basket 133; while the cross section of the right tower wall is a right-angle side, and the two auxiliary baskets 133 of the first platform 13 on the right side abut against the edges of the upper and lower tower walls after adaptive movement. At this time, the end of the second platform 14 (the outer end of the inner hanging basket 143) conforms to the inner end face (left side wall) of the auxiliary basket 133 on the same side. There are a variety of connection structures between the outer end of the strip hanging basket and the auxiliary basket, which can be flexibly selected and implemented according to the cross-sectional shape of the cable tower, so that the suspended platform after the connection is completed can better adapt to the cross-sectional changes of the cable towers of different shapes and structures and realize all-round maintenance construction. In addition, for diamond-type or A-type tower structures, after the suspension platform rises to a certain height, the first platform located on the inner side of the tower is restricted by the tower body structure and cannot continue to climb (stuck under the top tip structure of the tower). At this time, the connection of the first platform can be disconnected separately, and the remaining three platforms can be used to continue climbing construction. After being connected, the three platforms also embrace the tower body to form a C-shaped semi-enclosed platform 11, thereby ensuring the wind resistance and stability of the working platform while adapting to changes in the cross-section of the tower.

[0063] In another technical solution, the modular wind-resistant and fall-proof aerial work platform for the cable tower, the group of fall-proof grooves includes a plurality of fall-proof grooves, which are spaced apart at the top of the side wall of the corresponding platform adjacent to the cable tower, the plurality of fall-proof grooves include a fixed fall-proof groove 32 and a sliding fall-proof groove 31, the sliding fall-proof groove 31 includes an fall-proof plate, which is slidably connected to a third track arranged on the side wall of the platform through a hinge mechanism, the third track is arranged along the length direction of the platform, the hinge mechanism includes a first hinge plate and a second hinge plate hinged to each other, and the hinge axis is arranged along the length direction of the third track, the first hinge plate is slidably arranged on the third track, the second hinge plate is fixedly connected to the fall-proof plate, and a limit block is provided between the first hinge plate and the second hinge plate, which is arranged to limit the maximum rotation angle of the hinge mechanism.

[0064] In the above technical scheme, the structure and position of the fixed anti-fall groove 32 and the sliding anti-fall groove 31 do not interfere with the sliding structure of the strip hanging basket or the inherent structure of the tower body. Specifically, the fixed anti-fall groove 32 is arranged on the second platform 14, and can be set to multiple, which are spaced apart on the side wall adjacent to the outer hanging basket 141 and the tower (the strip hanging basket sleeved on the outside is set as the outer hanging basket 141, and the strip hanging basket sleeved on the inside is set as the inner hanging basket 143); the sliding anti-fall groove 31 on the first platform 13 is set to multiple, which are spaced apart on the side wall adjacent to the main basket 131 and the tower, and the sliding anti-fall groove 31 on the second platform 14 is set on the side wall adjacent to the inner hanging basket 143 and the tower. The single sliding anti-fall groove 31 adopts a flap-type slidable structure. During maintenance and construction, the anti-fall plate is set horizontally. When the platform is lifted, the anti-fall plate can be flipped and folded into the inside of the platform through a hinge mechanism, which is not easy to affect the lifting action and avoids the problem of the anti-fall plate protruding inward colliding with the tower wall. The hinge mechanism is arranged at the top of the side wall adjacent to the corresponding platform and the cable tower, specifically: the first hinge plate is arranged parallel to the side wall of the platform and the top is flush, the hinge axis is arranged at the top position of the first hinge plate, and the two sides of the vertical plane where the first hinge plate is located are respectively inside the platform and outside the platform, and the second hinge plate can be folded toward the inside of the platform to the extreme position (parallel to the side protection net), and when the second hinge plate is folded toward the outside of the platform to a horizontal state, the upward side of the second hinge plate is set as the front side, and the anti-fall plate is horizontally fixed on the front side of the second hinge plate, and the limit stopper is arranged on the back side of the second hinge plate. Under the action of the limit stopper, the second hinge plate cannot continue to rotate downward (towards the outside), thereby enabling the anti-fall plate to stably maintain a horizontal shielding state and realize the anti-fall function.

[0065] In another technical solution, the modular wind-resistant and anti-falling aerial work platform for the cable tower, the anti-falling system also includes four anti-falling nets 33, which are respectively arranged on the top of the side walls adjacent to the cable tower of the four auxiliary baskets 133 of the two first platforms 13. Among them, in order to adapt to different tower wall shapes, there is a large uncertainty and change in the setting position of the auxiliary basket at different construction heights. The anti-falling net structure is used as an anti-falling measure on the side adjacent to the cable tower, which can better adapt to the construction application of the auxiliary basket and ensure the anti-falling effect.

[0066] The present invention also provides a construction method of a modular wind-resistant and fall-proof aerial work platform for a cable tower, comprising:

[0067] S1. Assemble the four platforms of the suspension platform under the tower respectively, and then integrate each platform with the corresponding anti-fall system components and auxiliary lifting devices;

[0068] S2. Install the suspension mechanism on the top of the tower;

[0069] S3, moving the four platforms to the side walls of the cable tower according to the design requirements, and then installing the lifting mechanism, wind-resistant system components, detection unit and control system corresponding to each platform. At this time, each platform is hung on the hanging mechanism and can climb on the corresponding cable tower side wall along the corresponding wind-resistant rope 61 under the action of the lifting mechanism;

[0070] The control system includes a controller and a control terminal. The controller can be integrated on the suspension platform to facilitate electrical connection of various control components. The control terminal can be selectively set on the platform or in the control room under the tower so that on-site construction personnel or remote monitoring personnel can adjust the construction status of the work platform according to real-time construction conditions.

[0071] S4, controlling each platform to climb to the same construction height through the control system, and then adjusting the working states of the first drive mechanism and the second drive mechanism, so that the spacing and position of the two auxiliary baskets 133 in the first platform 13, and the spacing and position of the outer ends of the two strip hanging baskets in the second platform 14 are adapted to the structure of the cable tower cross section 41 at the construction height, and then the outer ends of each strip hanging basket are fixedly connected to the adjacent auxiliary baskets 133, so that the four platforms are surrounded along the circumference of the cable tower cross section 41 to form a U-shaped fully enclosed platform 12, and the fully enclosed platform is used to perform maintenance construction of the middle and lower tower columns;

[0072] S5, disconnecting the outer end of each bar hanging basket from the adjacent auxiliary basket 133, controlling each platform to continue to climb, and repeating the step of S4 until the first platform 13 located inside the cable tower can no longer be lifted. At this time, the first platform 13 located inside the cable tower can be removed from the lower tower in advance;

[0073] S6, control the first platform 13 and the two second platforms 14 located outside the cable tower to continue to climb to the same construction height, and then adjust the working states of the first drive mechanism and the second drive mechanism, so that the spacing and position of the two auxiliary baskets 133 in the first platform 13 and the outer end position of the strip hanging basket adjacent to the first platform 13 in the second platform 14 are adapted to the structure of the cable tower cross section 41 at the construction height, and then each auxiliary basket 133 is fixedly connected to the outer end of the adjacent strip hanging basket, so that the above three platforms are surrounded along the circumference of the cable tower cross section 41 to form a C-shaped semi-enclosed platform 11, and the semi-enclosed platform is used to perform upper tower column maintenance construction;

[0074] S7, release the connection between each auxiliary basket 133 and the outer end of the adjacent strip hanging basket, control the three platforms to continue climbing, and repeat the step of S6 until the full-height maintenance construction of the side tower column is completed; after all the construction is completed, the remaining first platform 13 and the second platform 14 are dismantled and transported away.

[0075] In the above technical scheme, S3-S7 is the construction process of a single-side tower column. The same set of equipment (modular wind-resistant and fall-proof aerial work platform) can be used to carry out maintenance construction on the tower column on the other side after the construction of the tower column on this side is completed; two sets of the same equipment can also be set up, installed on the tower columns on both sides respectively and carry out maintenance construction at the same time. After both equipment have climbed to the upper tower column section, the first platform 13 located on the inner side of the cable tower in the two sets of equipment is removed, and the remaining multiple platforms form C-shaped semi-enclosed platforms 11 on both sides of the tower top respectively. The maintenance construction of the upper tower column is continued according to normal construction steps, and the comprehensive maintenance construction of the entire cable tower structure (tower columns on both sides + tower top structure) can be completed within the original maintenance construction period of the single tower column, which greatly improves the maintenance construction efficiency.

[0076] It is worth noting that in S4-S7, the four platforms can also operate independently when there is less environmental interference (such as no rain or snow, low wind speed, good wind direction) and stable construction, that is, each platform stays at a different construction height for maintenance and construction. At this time, the structure of each platform (the position of the auxiliary basket / strip hanging basket) only needs to be adjusted according to the structure of the corresponding side in the cross section of the cable tower at this height (covering the full length range of the side), and there is no need to consider the positional relationship when connecting different platforms. Environmental interference and construction status information can be judged through the detection data transmitted by the safety information detection system.

[0077] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A modular wind-resistant and anti-falling aerial work platform for a cable tower, characterized in that: include: A suspension platform, comprising four platforms horizontally arranged in sequence along different sides of a cable tower cross section, any platform being connected to a suspension mechanism at the top of the tower through a lifting mechanism, the four platforms comprising two first platforms arranged opposite to each other and two second platforms arranged opposite to each other, any first platform comprising a main basket and two auxiliary baskets, the main basket being arranged along the longitudinal direction of the bridge, any auxiliary basket being horizontally arranged on a side wall adjacent to the cable tower and moving along the length direction of the main basket under the action of a first driving mechanism; any second platform comprising two bar-shaped hanging baskets arranged continuously along the transverse direction of the bridge, which are mutually sleeved and relatively moved under the action of a second driving mechanism, and the outer ends of the two bar-shaped hanging baskets are respectively detachably connected to the auxiliary baskets of the two first platforms; An anti-fall system, comprising four groups of anti-fall grooves, which correspond one to one with the four platforms, and any group of anti-fall grooves is arranged on the side wall of the corresponding platform adjacent to the cable tower; The wind-resistant system includes four groups of wind-resistant ropes, which correspond to the four platforms one by one. One end of each group of wind-resistant ropes is fixed to the suspension mechanism, and the other end is passed downward through the guide wheel on the corresponding platform and then anchored on the bridge deck. The control system comprises a controller which is electrically connected to the lifting mechanism, the first driving mechanism and the second driving mechanism; and a control terminal which is electrically connected to the controller.

2. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 1, characterized in that: The lifting mechanism includes a plurality of lifting hangers, which are arranged at intervals on corresponding platforms, and each lifting hanger is provided with a hoist, a bearing seat, a guide wheel mechanism and a safety lock at intervals; a plurality of lifting ropes, which are arranged corresponding to the plurality of lifting hangers, one end of each lifting rope is hung on the hanging mechanism, and the other end is downwardly passed through the bearing seat and the guide wheel mechanism on the corresponding lifting hanger in sequence, and then connected to the rope feed end of the hoist; a plurality of safety ropes, which are arranged corresponding to the plurality of lifting hangers, one end of each safety rope is hung on the hanging mechanism, and the other end is downwardly passed through the bearing seat and the guide wheel mechanism on the corresponding lifting hanger in sequence, and then connected to the safety lock; Among them, the multiple lifting hangers located on the first platform are arranged corresponding to the two auxiliary baskets, any lifting hanger is mounted on the main basket and drives the corresponding auxiliary basket to move under the action of the first driving mechanism; the multiple lifting hangers located on the second platform are arranged at intervals on the strip hanging basket and fixedly connected thereto.

3. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 1, characterized in that: It also includes four auxiliary lifting devices, which correspond to the four platforms one by one, and each auxiliary lifting device includes a leg, one end of which is fixed to the side wall of the corresponding platform adjacent to the cable tower; The wall-leaning wheel is rotatably connected to the other end of the supporting leg through a pin shaft, and the wheel surface of the wall-leaning wheel abuts against the tower wall of the adjacent pylon.

4. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 1, characterized in that: It also includes a safety information detection system, which includes four detection units, which correspond to the four platforms one by one, and any detection unit is electrically connected to the controller, and the detection unit includes a wind speed and direction sensor, which is arranged on the top of the corresponding platform; a camera, which is arranged above the corresponding platform and is used to collect construction image data of the platform; A load limiter is arranged at the lifting mechanism of the corresponding platform and is used to detect the lifting internal stress; an inclinometer is arranged at the end of the corresponding platform and is used to detect the construction posture data of the platform.

5. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 1, characterized in that: The suspension mechanism includes a first truss, which is erected on the top of the tower crown of the cable tower, and the lifting mechanism is connected to the first truss; a second truss, which is circumferentially arranged at the lower part of the tower crown of the cable tower, and the wind resistance system is connected to the second truss.

6. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 2, characterized in that: The first driving mechanism includes a first track, which is arranged between the main basket and the lifting bracket along the length direction of the main basket; a first motor, which is arranged to drive the lifting bracket to move along the first track; The second driving mechanism includes a second track, which is arranged between the two bar hanging baskets along the length direction of the bar hanging baskets; and a second motor, which is arranged to drive the two bar hanging baskets to move relative to each other along the second track.

7. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 1, characterized in that: The outer ends of the two bar-shaped hanging baskets are detachably connected to the auxiliary basket through connecting devices, respectively. The connecting devices include a clamp. In the connected state, one first platform and two second platforms together form a C-shaped semi-enclosed platform, or two first platforms and two second platforms together form a U-shaped fully enclosed platform.

8. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 1, characterized in that: The group of anti-fall grooves includes a plurality of anti-fall grooves, which are arranged at intervals on the top of the side wall adjacent to the corresponding platform and the cable tower. The plurality of anti-fall grooves include fixed anti-fall grooves and sliding anti-fall grooves. The sliding anti-fall groove includes an anti-fall plate, which is slidably connected to a third track arranged on the side wall of the platform through a hinge mechanism. The third track is arranged along the length direction of the platform. The hinge mechanism includes a first hinge plate and a second hinge plate hinged to each other, and the hinge axis thereof is arranged along the length direction of the third track. The first hinge plate is slidably arranged on the third track, and the second hinge plate is fixedly connected to the anti-fall plate. A limit block is provided between the first hinge plate and the second hinge plate, and is arranged to limit the maximum rotation angle of the hinge mechanism.

9. The modular wind-resistant and anti-falling aerial work platform for a cable tower as claimed in claim 8, characterized in that: The anti-falling system also includes four anti-falling nets, which are respectively arranged on the top of the side walls of the four auxiliary baskets of the two first platforms adjacent to the cable tower.

10. The construction method of a modular wind-resistant and fall-proof aerial work platform for a cable tower according to any one of claims 1 to 9, characterized in that: include: S1. Assemble the four platforms of the suspension platform under the tower respectively, and then integrate each platform with the corresponding anti-fall system components; S2. Install the suspension mechanism on the top of the tower; S3, moving the four platforms to the side walls of the cable tower according to the design requirements, and then installing the lifting mechanism, wind-resistant system components and control system corresponding to each platform. At this time, each platform is hung on the hanging mechanism and can climb on the corresponding cable tower side wall along the corresponding wind-resistant rope under the action of the lifting mechanism; S4, controlling each platform to climb to the same construction height through the control system, and then adjusting the working states of the first drive mechanism and the second drive mechanism, so that the spacing and position of the two auxiliary baskets in the first platform and the spacing and position of the outer ends of the two strip hanging baskets in the second platform are adapted to the cross-sectional structure of the cable tower at the construction height, and then the outer ends of each strip hanging basket are fixedly connected to the adjacent auxiliary baskets, so that the four platforms are surrounded along the circumference of the cable tower cross section to form a U-shaped fully enclosed platform, and the fully enclosed platform is used to perform maintenance construction of the middle and lower tower columns; S5, disconnecting the outer end of each strip hanging basket from the adjacent auxiliary basket, controlling each platform to continue to climb, and repeating the step of S4 until the first platform located on the inner side of the cable tower can no longer be lifted; S6, control the first platform and two second platforms located outside the cable tower to continue to climb to the same construction height, and then adjust the working states of the first drive mechanism and the second drive mechanism, so that the spacing and position of the two auxiliary baskets in the first platform and the outer end position of the strip hanging basket adjacent to the first platform in the second platform are adapted to the cross-sectional structure of the cable tower at the construction height, and then fix each auxiliary basket to the outer end of the adjacent strip hanging basket, so that the above three platforms are surrounded along the circumference of the cable tower cross section to form a C-shaped semi-enclosed platform, and use the semi-enclosed platform to perform upper tower column maintenance construction; S7, release the connection between each auxiliary basket and the outer end of the adjacent strip hanging basket, control the three platforms to continue climbing, and repeat the step of S6 until the full-height maintenance construction of the side tower column is completed.

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