Lifting platform device capable of rotating around rod

Abstract

The invention discloses a lifting platform device capable of rotating around a pole. The lifting platform device comprises a pole holding rotating mechanism and a lifting mechanism. The holding pole rotating mechanism comprises a rotating rack, a jacking limiting device and a rotating transmission device, the rotating rack annularly slides through a sliding limiting device, and limiting clamping and rotating operation is conducted on the telegraph pole through the jacking limiting device and the rotating transmission device; the lifting mechanism comprises a connecting support, a lifting connecting rod and an insulating platform assembly, the connecting support is fixedly installed on the rotating rack, the insulating platform assembly is arranged on the outer side of the telegraph pole, and the two ends of the lifting connecting rod are hinged to the connecting support and the insulating platform assembly respectively; the connecting support is provided with a tape lifting device and controls rotation of the lifting connecting rod and lifting of the insulating platform assembly. The device is compact in structure, capable of achieving 360-degree rotation and accurate height adjustment of telegraph pole operation, convenient to install and use, easy to operate, wide in operation range and high in operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of power construction technology, and in particular to a pole-rotating lifting platform device. Background Technology

[0002] In the power transmission and distribution network system, utility poles, as key infrastructure supporting core electrical equipment such as high-voltage conductors, transformers, and insulators, are widely distributed in urban road networks, rural fields, and mountainous forest areas. Their operational status directly determines the stability and security of the power grid. Problems such as aging electrical equipment, lightning strikes, and line losses require workers to climb and complete inspection, replacement, and maintenance operations. A single high-altitude operation typically lasts 1-4 hours, placing stringent requirements on the safety, stability, and convenience of auxiliary support equipment.

[0003] Among existing 10kV power distribution pole working equipment, pole climbing tools can only achieve single-height operation, requiring workers to frequently adjust their position up and down; while aerial work platforms can adjust their height, they are limited by terrain and cannot rotate around the pole, making it difficult to cover the entire circumference of the pole and work points at different heights. In addition, existing lifting mechanisms mostly use hydraulic or screw direct drive, which are complex in structure, occupy a lot of space, have poor applicability in narrow working environments, low stability, and pose safety hazards. Summary of the Invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a rod-rotating lifting platform device.

[0005] This invention proposes a pole-rotating lifting platform device, comprising a pole-holding rotating mechanism and a lifting mechanism. The pole-holding rotating mechanism includes a rotating frame, a jacking limiting device, and a rotating transmission device. The jacking limiting device and the rotating transmission device are respectively installed in the rotating frame and clamp the utility pole. The rotating frame is controlled to rotate around the utility pole by the rotating transmission device. The lifting mechanism includes a connecting bracket, a lifting connecting rod, and an insulating platform assembly. The connecting bracket is fixedly installed on the rotating frame, the insulating platform assembly is located on the outside of the utility pole, and the two ends of the lifting connecting rod are respectively hinged to the connecting bracket and the insulating platform assembly. A belt-winding lifting device is provided on the connecting bracket to control the rotation of the lifting connecting rod and the lifting of the insulating platform assembly.

[0006] Preferably, the rotating frame includes a C-shaped rotating frame and a front arc-shaped rotating frame. The C-shaped rotating frame and the front arc-shaped rotating frame are rotatably connected at one end by a pivot shaft, and the other end is locked by a quick-release pin. The C-shaped rotating frame is composed of a rear arc-shaped rotating frame and a square tube frame. Two square tube frames are provided and fixedly connected to both sides of the rear arc-shaped rotating frame. The rear arc-shaped rotating frame is composed of parallel upper arc-shaped fixing plates and lower arc-shaped fixing plates. The front arc-shaped rotating frame is composed of parallel upper arc-shaped rotating plates and lower arc-shaped rotating plates. The upper arc-shaped fixing plates and lower arc-shaped fixing plates, and the upper arc-shaped rotating plates and lower arc-shaped rotating plates are fixedly supported by a number of support columns.

[0007] Preferably, both the lower end face of the upper arc-shaped fixing plate and the upper end face of the lower arc-shaped fixing plate are provided with jacking slide rails, which are parallel to each other and arranged along the axial direction of the utility pole; the jacking limiting device includes a wheel frame, a rubber wheel, a jacking nut, and a jacking screw. The jacking nut is mounted on the two jacking slide rails and slides through a nut seat. The wheel frame is located inside the rear arc-shaped rotating frame and a buffer spring is provided between it and the nut seat. At least two rubber wheels are provided and are all mounted on the wheel frame; one end of the jacking screw is installed in the jacking nut, and the external thread at its end is adapted to the internal thread on the inner wall of the jacking nut; the other end of the jacking screw is fixed to the output shaft of the jacking motor installed inside the rear arc-shaped rotating frame.

[0008] Preferably, at least two linear bearings are installed inside the rear arc-shaped rotating frame, and each linear bearing is equipped with a guide shaft. The guide shaft is parallel to the lead screw and its front end is fixed to the wheel frame.

[0009] Preferably, the rotary transmission device includes a pulley fixing plate, a first synchronous pulley, a second synchronous pulley, a synchronous belt, a pulley motion motor, and a second rubber wheel. The pulley fixing plate is mounted on the upper surface of the upper arc-shaped rotating plate. Two second synchronous pulleys are provided, and both are mounted on the upper surface of the pulley fixing plate via bearings, with the two second synchronous pulleys and the first synchronous pulley located at the three vertices of an isosceles triangle, respectively. The synchronous belt is mounted on the two second synchronous pulleys and the first synchronous pulley. The first synchronous pulley is rotated by the pulley motion motor. Two second rubber wheels are provided and fixedly mounted on the rotation shafts of the two second synchronous pulleys, respectively.

[0010] Preferably, a pole-holding locking platform is fixed to the outer wall of the utility pole. An annular guide rail is provided on the upper surface of the pole-holding locking platform. The rotating frame is mounted on the annular guide rail for sliding via a sliding limiting device. Two sliding limiting devices are provided and are respectively installed on the lower end surfaces of the two square tube frames. Each device includes a linear guide rail, a roller slider, a slider mounting seat, and a V-groove roller. The linear guide rail is installed on the lower end surface of the square tube frame. The roller slider slides under the linear guide rail. The slider mounting seat is fixed on the lower end surface of the roller slider. The V-groove roller is installed on the lower end surface of the slider mounting seat. The V-groove on the V-groove roller can engage with the annular guide rail provided on the upper surface of the pole-holding locking platform for sliding.

[0011] Preferably, the connecting bracket includes square tube one, square tube two, and square tube three. Two square tubes one are vertically arranged and parallel to each other, and each of them is provided with a hanging plate at its top. The hanging plate is provided with bracket mounting holes, and the two hanging plates are respectively fixed to the two square tube frames by bolts in the bracket mounting holes. Square tube two is horizontally fixed at the rear end of the two hanging plates or at the top outer side of the two square tubes one. Square tube three is horizontally fixed at the bottom inner side of the two square tubes one.

[0012] Preferably, the square tube three is provided with a rolling support device, which includes a roller support, an adjusting screw, an adjusting nut, an adjusting handle, rubber roller three, bushings, and a limiting guide shaft; the adjusting nut is installed in the nut hole of the square tube three, the adjusting screw passes through the adjusting nut and the external thread on the adjusting screw is adapted to the internal thread on the inner wall of the adjusting nut; the roller support is fixed to the front end of the adjusting screw, two rubber roller three are provided and installed in the roller support, the rubber roller three can rotate along the outer wall of the utility pole, and the adjusting handle is installed at the rear end of the adjusting screw; two bushings are provided and symmetrically installed in the bushing holes of the square tube three on both sides of the adjusting nut, two limiting guide shafts are provided and correspondingly installed in the bushings, and their front ends are fixed on the roller support.

[0013] Preferably, the insulating platform assembly includes an insulating platform with a square bracket mounted at its front end; the lifting linkage consists of four parallel and symmetrical rods, each with its rear end hinged to the square bracket, wherein the front ends of two of the lifting linkages are hinged to different heights on one of the square tubes, and the front ends of the other two lifting linkages are hinged to different heights on another square tube; at least one of the four lifting linkages has a linkage positioning hole, and a locking disc is provided on the square bracket at the connection point between the linkage and the square bracket, the locking disc having several adjustment positioning holes, and the linkage positioning hole and the adjustment positioning hole being locked and fixed by a pin.

[0014] Preferably, the tape lifting device includes a tape motor base, a first helical gear, a second helical gear, a tape reel, a conveying belt, an absolute encoder, and a brake motor; the tape motor base is mounted on the square tube 2, the brake motor is mounted on the tape motor base, the first and second helical gears mesh and are both mounted inside the tape motor base, and the first helical gear is connected to the output shaft of the brake motor; the second helical gear is connected in series with the tape reel via the central shaft of the tape reel, and the absolute encoder is mounted on the outer end face of the tape reel or on the tape... One end of the conveyor belt is fixed to the central shaft of the reel between the helical gear and the reel; a pulley mounting seat is provided on the square bracket, and a pulley is installed on the pulley mounting seat; a fixed shaft is installed inside the reel motor base, and the other end of the conveyor belt is fixed to the fixed shaft after passing over the pulley; a guide wheel bracket is hinged inside the reel motor base, and a guide wheel is installed at the front end of the guide wheel bracket. The guide wheel is pressed onto the conveyor belt by its own weight and the weight of the guide wheel bracket or the preload at the hinge of the guide wheel bracket.

[0015] The beneficial effects of this invention are as follows:

[0016] (1) The present invention provides a pole-rotating lifting platform device, wherein the rotating frame of the pole-rotating mechanism clamps the utility pole by means of a jacking limit device and a rotating transmission device, and can control the pole to rotate 360° around the utility pole by means of the rotating transmission device, which has a wide operating range and high operating efficiency.

[0017] (2) The pole-rotating lifting platform device of the present invention controls the rotation of the lifting link through the winding lifting device, thereby driving the lifting of the insulating platform component, thereby achieving precise adjustment of the lifting height, which can cover different working points of the utility pole, without the need for frequent movement of equipment, greatly improving work efficiency; and can achieve large displacement lifting in a small space, suitable for narrow working environments.

[0018] (3) The pole rotation lifting platform device of the present invention has a compact structure, can realize 360° rotation and precise height adjustment of the utility pole operation, is easy to install and use, simple to operate, has a wide operating range and high operating efficiency. Attached Figure Description

[0019] Figure 1 Schematic diagram of the invention Figure 1 ;

[0020] Figure 2 : A schematic diagram of the structure of the pole-mounting rotating mechanism of the present invention;

[0021] Figure 3 : A bottom view of the structure of the pole-mounting rotating mechanism of the present invention;

[0022] Figure 4: A front view of the lifting mechanism of the present invention;

[0023] Figure 5 : A schematic diagram of the structure of the rolling support device of the lifting mechanism of the present invention;

[0024] Figure 6 Schematic diagram of a partial structure of the belt lifting device of the lifting mechanism of the present invention. Figure 1 ;

[0025] Figure 7 Schematic diagram of a partial structure of the belt lifting device of the lifting mechanism of the present invention. Figure 2 . Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1:

[0028] Reference Figure 1-7 The present invention proposes a pole-rotating lifting platform device, which includes a pole-rotating mechanism 300 and a lifting mechanism 400.

[0029] The pole-holding rotation mechanism 300 of the present invention includes a rotating frame, a jacking and limiting device 340, and a rotational transmission device 360. The jacking and limiting device 340 and the rotational transmission device 360 ​​are symmetrically installed in the rotating frame and clamp the utility pole 900. Simultaneously, the rotational transmission device 360 ​​serves as the power source for the rotational movement of the rotating frame; that is, the rotating frame is controlled by the rotational transmission device 360 ​​to roll on the outer circumference of the utility pole 900, thereby rotating 360° around the utility pole 900. Therefore, operators can obtain a wider working range, the operation is simple, a significant amount of adjustment time is saved, and work efficiency is improved. Furthermore, the pole-holding rotation mechanism 300 of the present invention directly clamps and limits the utility pole 900 through the jacking and limiting device 340 and the rotational transmission device 360, achieving the fixed locking of the entire device. This eliminates the need for an additional annular pole-holding locking platform on the outer wall of the utility pole 900, resulting in a simpler and more compact structure.

[0030] The lifting mechanism 400 of the present invention includes a connecting bracket 410, a lifting connecting rod 420, and an insulating platform assembly 430. The connecting bracket 410 is fixedly mounted on the rotating frame of the pole rotating mechanism 300. The insulating platform assembly 430 is disposed on the outside of the utility pole 900, and both ends of the lifting connecting rod 420 are respectively hinged to the connecting bracket 410 and the insulating platform assembly 430. A tape reel lifting device 440 is provided on the connecting bracket 410 to control the rotation of the lifting connecting rod 420 and the lifting of the insulating platform assembly 430. At least two lifting connecting rods 420 are provided and are parallel to each other. Therefore, the two lifting connecting rods 420, the connecting bracket 410, and the insulating platform assembly 430 form a parallelogram structure. When the insulating platform assembly 430 is lifted and lowered under the control of the tape reel lifting device 440, it can always maintain a horizontal and stable state, improving the operating comfort and safety of the operator.

[0031] The present invention discloses a pole-rotating lifting platform device, which controls the rotation of the lifting link 420 through the belt lifting device 440, thereby driving the lifting of the insulating platform assembly 430, thus achieving precise adjustment of the lifting height. It can cover different working points at different heights of the utility pole 900, without the need for frequent movement of equipment, greatly improving work efficiency; moreover, it can achieve large displacement lifting in small spaces, making it suitable for narrow working environments.

[0032] The present invention provides a pole-rotating lifting platform device with a compact structure, which can realize 360° rotation and precise height adjustment for utility pole operations. It is easy to install and use, simple to operate, has a wide operating range, high operating efficiency, and higher stability.

[0033] Example 2:

[0034] Reference Figure 1-7 The present invention proposes a pole-rotating lifting platform device, which includes a pole-rotating mechanism 300 and a lifting mechanism 400.

[0035] The pole-holding rotation mechanism 300 includes a rotating frame, a jacking and limiting device 340, and a rotation transmission device 360. The jacking and limiting device 340 and the rotation transmission device 360 ​​are symmetrically installed in the rotating frame and clamp the utility pole 900. The rotating frame is controlled to rotate 360° around the utility pole 900 via the rotation transmission device 360. The specific structure is as follows:

[0036] The rotating frame includes a C-shaped rotating frame and a front arc-shaped rotating frame 330. The C-shaped rotating frame and the front arc-shaped rotating frame 330 are rotatably connected at one end by a rotating shaft 380, and the other end is closed and locked by a quick-release pin 370.

[0037] The C-type rotating frame consists of a rear arc-shaped rotating frame 310 and a square tube frame 320. Two square tube frames 320 are provided and fixedly connected to both sides of the rear arc-shaped rotating frame 310. The rear arc-shaped rotating frame 310 consists of an upper arc-shaped fixing plate 311 and a lower arc-shaped fixing plate 312 that are parallel to each other. The front arc-shaped rotating frame 330 consists of an upper arc-shaped rotating plate 331 and a lower arc-shaped rotating plate 332 that are parallel to each other. The upper arc-shaped fixing plate 311 and the lower arc-shaped fixing plate 312, and the upper arc-shaped rotating plate 331 and the lower arc-shaped rotating plate 332 are fixedly supported by several support columns.

[0038] Both the lower end face of the upper arc-shaped fixing plate 311 and the upper end face of the lower arc-shaped fixing plate 312 are provided with jacking slide rails 313. The two jacking slide rails 313 are parallel to each other and are arranged along the axial direction of the utility pole 900. The jacking limiting device 340 includes a wheel frame 341, a rubber wheel 342, a jacking nut 345 and a jacking screw 346. The jacking nut 345 is mounted on the two jacking slide rails 313 and slides through a nut seat 344. The wheel frame 341 is located inside the rear arc-shaped rotating frame 310 and a buffer spring 343 is provided between it and the nut seat 344. At least two rubber wheels 342 are provided and are all mounted on the wheel frame 341. One end of the jacking screw 346 is installed in the jacking nut 345, and the external thread at its end is adapted to the internal thread on the inner wall of the jacking nut 345. The other end of the lead screw 346 is fixed to the output shaft of the lead motor 347 installed inside the rear arc-shaped rotating frame 310.

[0039] At least two linear bearings 348 are installed inside the rear arc-shaped rotating frame 310. Each linear bearing 348 has a guide shaft 349 installed inside it. The guide shaft 349 is parallel to the lead screw 346 and its front end is fixed to the wheel frame 341. The linear bearings 348 and the guide shafts 349 can effectively prevent the wheel frame 341 from shifting during movement.

[0040] The rotary transmission device 360 ​​includes a pulley fixing plate 361, a first synchronous pulley 362, a second synchronous pulley 363, a synchronous belt 364, a pulley motion motor 365, and a second rubber wheel 366. The pulley fixing plate 361 is mounted on the upper end face of the upper arc-shaped rotating plate 331. Two second synchronous pulleys 363 are provided and are mounted on the upper end face of the pulley fixing plate 361 along with the first synchronous pulley 362 via bearings. The two second synchronous pulleys 363 and the first synchronous pulley 362 are located at the three endpoints of an isosceles triangle, respectively. The synchronous belt 364 is mounted on the two second synchronous pulleys 363 and the first synchronous pulley 362. The first synchronous pulley 362 is rotated by the pulley motion motor 365. Two second rubber wheels 366 are provided and are fixedly mounted on the rotation shafts of the two second synchronous pulleys 363, respectively.

[0041] The pole-holding rotation mechanism 300 of the present invention directly clamps and locks the utility pole 900 by means of the jacking limit device 340 and the rotation transmission device 360, thereby achieving the fixation and locking of the entire device. It eliminates the need to add an additional annular pole-holding locking platform for support on the outer wall of the utility pole 900, resulting in a simpler and more compact structure.

[0042] In the pole-mounting rotating mechanism 300, firstly, the starting of the jacking motor 347 in the jacking limit device 340 drives the extension and retraction of the wheel frame 341, thereby enabling multiple rubber wheels 342 to contact and press against the outer wall of the utility pole 900, ultimately achieving synchronous clamping between the multiple rubber wheels 342 and the multiple rubber wheels 366 and the outer wall of the utility pole 900. Then, the rotary transmission device 360 ​​serves as the power source for the rotation of the rotating frame, i.e., the pulley motor 365 controls the rotation to drive the multiple rubber wheels 366 to rotate synchronously. Utilizing the frictional contact between the rubber wheels 366 and the outer wall of the utility pole 900, the rotating frame is controlled by the rotary transmission device 360 ​​to roll on the outer circumference of the utility pole 900, thereby performing a 360° rotation around the utility pole 900. This expands the operator's working space and improves work efficiency, simplifies operation, and saves a significant amount of adjustment time.

[0043] The lifting mechanism 400 includes a connecting bracket 410, a lifting connecting rod 420, and an insulating platform assembly 430. The connecting bracket 410 is fixedly mounted on the rotating frame of the pole rotating mechanism 300. The insulating platform assembly 430 is located on the outside of the utility pole 900, and both ends of the lifting connecting rod 420 are hinged to the connecting bracket 410 and the insulating platform assembly 430, respectively. A tape reel lifting device 440 is provided on the connecting bracket 410 to control the rotation of the lifting connecting rod 420 and the lifting of the insulating platform assembly 430. The specific structure is as follows:

[0044] The connecting bracket 410 includes square tube one 411, square tube two 413, and square tube three 414. Two square tubes one 411 are vertically arranged and parallel to each other, and each of them has a hanging plate 412 at its top. The hanging plate 412 has bracket mounting holes 415. The two hanging plates 412 are fixed to the two square tube frames 320 respectively by bolts through the bracket mounting holes 415. Square tube two 413 is horizontally fixed at the rear end of the two hanging plates 412 or on the outer side of the top of the two square tubes one 411. Square tube three 414 is horizontally fixed on the inner side of the bottom end of the two square tubes one 411.

[0045] A rolling support device 450 is provided on the square tube 3 414. The rolling support device 450 includes a roller support 451, an adjusting screw 452, an adjusting nut 453, an adjusting handle 454, rubber rollers 455, a bushing 456, and a limiting guide shaft 457. The adjusting nut 453 is installed in the nut hole of the square tube 3 414. The adjusting screw 452 passes through the adjusting nut 453, and the external thread on the adjusting screw 452 is adapted to the internal thread on the inner wall of the adjusting nut 453. The roller support 451 is fixed to the front end of the adjusting screw 452. Two rubber rollers 455 are provided and installed in the roller support 451. The rubber rollers 455 can rotate along the outer wall of the utility pole 900. The adjusting handle 454 is installed at the rear end of the adjusting screw 452. Bushing 456 has two bushings symmetrically installed in the bushing holes of square tubes 414 on both sides of adjusting nut 453. Two limiting guide shafts 457 are correspondingly installed inside bushing 456, with their front ends fixed to roller supports 451. By rotating the adjusting screw 452 in the rolling support device 450, the two square tubes 411 can be adjusted to maintain a vertical state, thereby keeping the insulating platform assembly 430 in a horizontal and stable state, improving the operator's comfort and safety. Simultaneously, during the rotation of the pole rotating mechanism 300 and the lifting mechanism 400, the rubber rollers 455 in the rolling support device 450 maintain rolling contact with the outer wall of the utility pole 900, providing support for the insulating platform assembly 430. This ensures the stability of the insulating platform assembly 430 while reducing friction with the outer wall of the utility pole 900, making the rotation of the insulating platform assembly 430 smoother.

[0046] The insulating platform assembly 430 includes an insulating platform 431, with a square bracket 432 mounted at its front end. Four parallel and symmetrical lifting rods 420 are provided, each with its rear end hinged to the square bracket 432. The front ends of two of the lifting rods 420 are hinged to different heights on one of the square tubes 411, and the front ends of the other two lifting rods 420 are hinged to different heights on the other square tube 411. Therefore, the two lifting rods 420, together with the connecting bracket 410 and the insulating platform assembly 430, form a parallelogram structure. With two parallelogram structures in total, when the insulating platform assembly 430 is raised and lowered under the control of the conveyor belt lifting device 440, the two parallelogram structures can always keep the insulating platform assembly 430 in a horizontal and stable state, improving the operator's comfort and safety.

[0047] At least one of the four lifting links 420 is provided with a link positioning hole 421. A locking plate 433 is provided on the square bracket 432 where the link 420 connects to the square bracket 432. The locking plate 433 is provided with several adjusting positioning holes 434. The link positioning hole 421 and the adjusting positioning hole 434 can be locked together by a pin. After the insulating platform assembly 430 is adjusted to a predetermined height, the locking of the lifting link 420 and the locking plate 433 restricts its further ascent or descent, ensuring the stability of the insulating platform assembly 430 and improving the safety of the workers.

[0048] The tape lifting device 440 includes a tape motor base 441, a first helical gear 442, a second helical gear 443, a tape reel 444, a conveyor belt 445, an absolute encoder 447, and a brake motor 4421. The tape motor base 441 is mounted on a square tube 413, and the brake motor 4421 is mounted on the tape motor base 441. The first helical gear 442 and the second helical gear 443 mesh and are both mounted inside the tape motor base 441, with the first helical gear 442 connected to the output shaft of the brake motor 4421. The second helical gear 443 and the tape reel 444 are connected in series via the central shaft of the tape reel. The absolute encoder 447 is mounted on the outer end face of the tape reel 444 or on one end of the central shaft of the tape reel. One end of the conveyor belt 445 is fixed to the central shaft of the tape reel between the second helical gear 443 and the tape reel 444. A pulley mounting seat 449 is provided on the square bracket 432, and a pulley 4491 is installed on the pulley mounting seat 449. A fixed shaft 448 is installed inside the belt winding motor seat 441. The other end of the hoisting belt 445 passes around the pulley 4491 and is fixed on the fixed shaft 448.

[0049] The rotation of the brake motor 4421 drives the winding reel 444 to rotate via helical gear 1 442 and helical gear 2 443, thereby tightening the hoisting belt 445. At this time, under the action of the parallelogram mechanism of the lifting linkage 420, the insulating platform assembly 430 moves parallel to the hanging plate 412. Then, the pin is inserted into the linkage positioning hole 421 and the adjustment positioning hole 434 at the appropriate position to achieve the locking effect. At the same time, the absolute encoder 447 will also rotate and record the number of revolutions. The two extreme positions of tightening and loosening of the hoisting belt 445 can be controlled by the absolute encoder 447. Then, the position of the adjusting rubber roller 3 455 can be adjusted manually by the handle 454.

[0050] A guide wheel bracket 4461 is hinged inside the tape reel motor base 441. A guide wheel 446 is mounted on the front end of the guide wheel bracket 4461. The guide wheel 446 is pressed onto the hoisting belt 445 by its own weight and the weight of the guide wheel bracket 4461 or the preload at the hinge of the guide wheel bracket 4461. The guide wheel bracket 4461 and the guide wheel 446 have a "directional adaptive adjustment" function: by dynamically matching the change in the diameter of the central shaft of the tape reel (including the wound hoisting belt 445), maintaining an appropriate clamping force, and limiting the deviation of the hoisting belt 445 from its trajectory, a stable transmission state of "no slack, no wear, no deviation, and uniform winding" is finally achieved for the hoisting belt 445, providing key support for the smooth and precise lifting of the insulated platform assembly 430.

[0051] In the lifting mechanism 400, the hanging plate 412 is fixed to the two square tube frames 320 of the rotating frame through the bracket mounting holes 415. Under the action of gravity, the insulating platform assembly 430 falls, causing the hoisting belt 445 to tighten. Then, the remote-controlled brake motor 4421 rotates, and the hoisting belt 445 is wound onto the central shaft of the reel 444. This allows for horizontal adjustment of the height and distance of the insulating platform. The brake motor 4421 has a power-off self-locking function, which can lock the platform at any position. During operation, the brake motor 4421 and the absolute encoder 447 monitor and adjust the operating status in real time. The absolute encoder 447 has a power-off memory function, which limits the upward and downward limits of the insulating platform assembly 430. After the insulating platform assembly 430 reaches the appropriate position, the pin is inserted into the connecting rod positioning hole 421 and the adjustment positioning hole 434 to achieve a double protection function. Then, by rotating the adjusting handle 454, the distance of the rubber roller 455 can be adjusted to achieve fine adjustment of the insulation platform assembly 430, that is, fine adjustment of the tilt angle of the insulation platform assembly 430 so that the insulation platform assembly 430 is in a horizontal state, at which point the operator can enter the platform to work.

[0052] In the lifting mechanism 400 of the pole-rotating lifting platform device of the present invention, the rotation of the lifting connecting rod 420 is controlled by the belt lifting device 440, thereby driving the lifting of the insulating platform assembly 430, thereby achieving precise adjustment of the lifting height. It can cover different working points at different heights of the utility pole 900, without the need for frequent movement of equipment, greatly improving work efficiency; moreover, it can achieve large displacement lifting in small spaces, making it suitable for narrow working environments.

[0053] The present invention provides a pole-rotating lifting platform device with a compact structure, which can realize 360° rotation and precise height adjustment for utility pole operations. It is easy to install and use, simple to operate, has a wide operating range, high operating efficiency, and higher stability.

[0054] Example 3:

[0055] Reference Figure 1-7The present invention proposes a pole-rotating lifting platform device, which includes a pole-rotating mechanism 300 and a lifting mechanism 400.

[0056] A ring-shaped pole-locking platform is fixedly installed at a suitable height on the outer wall of the target utility pole 900. The pole-locking platform is an existing technology, which adopts the following: multiple fixed arc segments are connected in series and fixed end to end by fixing pins to form a ring structure, and then locked to the outer wall of the utility pole 900 by multiple sets of bolts, buckles or hydraulic drive.

[0057] The upper end face of the pole locking platform is equipped with an annular guide rail. The pole rotating mechanism 300 and the lifting mechanism 400 of the pole rotating lifting platform device of the present invention are installed and slide on the annular guide rail of the pole locking platform. That is, the pole locking platform is the installation and support foundation of the pole rotating lifting platform device of the present invention.

[0058] The pole-holding rotation mechanism 300 includes a rotating frame, a jacking limit device 340, and a rotation transmission device 360. The rotating frame slides on an annular guide rail on the upper surface of the pole-holding locking platform via a sliding limit device 350. The jacking limit device 340 and the rotation transmission device 360 ​​are symmetrically installed in the rotating frame and clamp the utility pole 900. The rotating frame rotates 360° around the utility pole 900 under the control of the rotation transmission device 360. The specific structure is as follows:

[0059] The rotating frame includes a C-shaped rotating frame and a front arc-shaped rotating frame 330. The C-shaped rotating frame and the front arc-shaped rotating frame 330 are rotatably connected at one end by a rotating shaft 380, and the other end is closed and locked by a quick-release pin 370.

[0060] The C-type rotating frame consists of a rear arc-shaped rotating frame 310 and a square tube frame 320. Two square tube frames 320 are provided and fixedly connected to both sides of the rear arc-shaped rotating frame 310. The rear arc-shaped rotating frame 310 consists of an upper arc-shaped fixing plate 311 and a lower arc-shaped fixing plate 312 that are parallel to each other. The front arc-shaped rotating frame 330 consists of an upper arc-shaped rotating plate 331 and a lower arc-shaped rotating plate 332 that are parallel to each other. The upper arc-shaped fixing plate 311 and the lower arc-shaped fixing plate 312, and the upper arc-shaped rotating plate 331 and the lower arc-shaped rotating plate 332 are fixedly supported by several support columns.

[0061] Two sliding limit devices 350 are provided and installed on the lower end faces of the two square tube frames 320 respectively. Each of them includes a linear guide rail 351, a roller slider 352, a slider mounting seat 353 and a V-groove roller 354. The linear guide rail 351 is installed on the lower end face of the square tube frame 320. The roller slider 352 slides under the linear guide rail 351. The slider mounting seat 353 is fixed on the lower end face of the roller slider 352. The V-groove roller 354 is installed on the lower end face of the slider mounting seat 353. The V-groove provided on the V-groove roller 354 can engage with the annular guide rail provided on the upper end face of the clamping platform and slide.

[0062] Both the lower end face of the upper arc-shaped fixing plate 311 and the upper end face of the lower arc-shaped fixing plate 312 are provided with jacking slide rails 313. The two jacking slide rails 313 are parallel to each other and are arranged along the axial direction of the utility pole 900. The jacking limiting device 340 includes a wheel frame 341, a rubber wheel 342, a jacking nut 345 and a jacking screw 346. The jacking nut 345 is mounted on the two jacking slide rails 313 and slides through a nut seat 344. The wheel frame 341 is located inside the rear arc-shaped rotating frame 310 and a buffer spring 343 is provided between it and the nut seat 344. At least two rubber wheels 342 are provided and are all mounted on the wheel frame 341. One end of the jacking screw 346 is installed in the jacking nut 345, and the external thread at its end is adapted to the internal thread on the inner wall of the jacking nut 345. The other end of the lead screw 346 is fixed to the output shaft of the lead motor 347 installed inside the rear arc-shaped rotating frame 310.

[0063] At least two linear bearings 348 are installed inside the rear arc-shaped rotating frame 310. Each linear bearing 348 has a guide shaft 349 installed inside it. The guide shaft 349 is parallel to the lead screw 346 and its front end is fixed to the wheel frame 341. The linear bearings 348 and the guide shafts 349 can effectively prevent the wheel frame 341 from shifting during movement.

[0064] The rotary transmission device 360 ​​includes a pulley fixing plate 361, a first synchronous pulley 362, a second synchronous pulley 363, a synchronous belt 364, a pulley motion motor 365, and a second rubber wheel 366. The pulley fixing plate 361 is mounted on the upper end face of the upper arc-shaped rotating plate 331. Two second synchronous pulleys 363 are provided and are mounted on the upper end face of the pulley fixing plate 361 along with the first synchronous pulley 362 via bearings. The two second synchronous pulleys 363 and the first synchronous pulley 362 are located at the three endpoints of an isosceles triangle, respectively. The synchronous belt 364 is mounted on the two second synchronous pulleys 363 and the first synchronous pulley 362. The first synchronous pulley 362 is rotated by the pulley motion motor 365. Two second rubber wheels 366 are provided and are fixedly mounted on the rotation shafts of the two second synchronous pulleys 363, respectively.

[0065] Unlike Embodiments 1 and 2, the pole-rotating lifting platform device in this embodiment not only directly clamps and fixes the utility pole 900 through the jacking limit device 340 and the rotary transmission device 360 ​​of the pole-holding rotating mechanism 300, but also slides on the pole-holding locking platform fixedly installed on the outer periphery of the utility pole 900 through the sliding limit device 350. That is, the weight of the pole-rotating lifting platform in this embodiment is distributed through the clamping force of the pole-holding locking platform and the pole-holding rotating mechanism 300 on the outer periphery of the utility pole 900, improving the stability of the entire device. Simultaneously,

[0066] Due to the different diameters of the utility poles 900, the center of the annular guide rail installed on the upper surface of the pole-holding locking platform may not be on the axis of the utility pole 900. The rotation of the pole-holding rotating mechanism 300 is centered on the axis of the utility pole 900, and the sliding limit device 350 can balance the deviation between the center of the annular guide rail and the rotation center of the pole-holding rotating mechanism 300.

[0067] In the sliding limit device 350, the V-groove roller 354 is one of the core components of the boom rotating mechanism 300. Its function revolves around "achieving stable rotation and adaptive coordination of the boom rotating part." Its core value lies in "connection + transmission + adaptation"—it achieves a stable connection between the boom rotating mechanism 300 and the boom locking platform, ensures 360° rotation through rolling characteristics, and the auxiliary device adapts to different boom diameters. It is a key component ensuring that the boom rotating mechanism 300 is "rotatable, rotates stably, and is widely adaptable." The specific structure and working principle are as follows:

[0068] 1. Guiding and Rolling: Enables the rotating part of the pole to rotate 360° in a circular motion.

[0069] The V-groove roller 354 acts as a "rolling connector," allowing the pole-holding rotating mechanism 300 to circulate 360° without dead angles along the long arc-shaped slide rail 116 and the short arc-shaped slide rail 124 (forming a ring as a whole). This ensures that the pole-holding rotating mechanism 300 can rotate freely around the utility pole 900, meeting the need for "adjusting the working position around the pole" during operations (such as inspecting lines and fittings in different directions). At the same time, it avoids deviation and jamming during rotation, ensuring the stability of the rotation direction.

[0070] 2. Support and load-bearing: Stably support the weight of the rotating part of the pole.

[0071] The V-groove roller 354 is mounted on the lower end face of the slider mounting base 353, directly bearing the overall weight of the pole-holding rotation mechanism 300. Through the rolling contact between the roller and the annular guide rail, the weight of the pole-holding rotation mechanism 300 is transferred to the annular pole-holding mechanism 100, preventing the pole-holding rotation mechanism 300 from sagging or shifting due to its own weight, and providing a stable bearing foundation for subsequent pole rotation and pole clamping.

[0072] 3. Assisted adaptive centering: Enables adaptive clamping for different rod diameters.

[0073] During the "adaptive clamping" process of the pole-holding rotating mechanism 300, the V-groove roller 354, through linkage with the linear guide rail 351 and the roller slider 352, assists in adapting to different pole diameters: when the jacking motor 347 rotates and the wheel frame 341 moves to clamp the utility pole 900, the "slider mounting seat 353 adjusts its position adaptively with clamping"—at this time, the slider mounting seat 353 will drive the lower V-groove roller 354 to slide along the "linear guide rail 351". Through the position adjustment of the V-groove roller 354, the overall structure of the pole-holding rotating mechanism 300 is indirectly assisted in "aligning the center of the utility pole 900", ultimately achieving "adaptive clamping for different pole diameters" (adapting to utility poles of different diameters), avoiding the offset or unstable clamping of the pole-holding rotating mechanism 300 due to differences in pole diameter.

[0074] In the pole-mounting rotating mechanism 300, firstly, the starting of the jacking motor 347 in the jacking limit device 340 drives the extension and retraction of the wheel frame 341, thereby enabling multiple rubber wheels 342 to contact and press against the outer wall of the utility pole 900, ultimately achieving synchronous clamping between the multiple rubber wheels 342 and the multiple rubber wheels 366 and the outer wall of the utility pole 900. Then, the rotary transmission device 360 ​​serves as the power source for the rotation of the rotating frame, i.e., the pulley motor 365 controls the rotation to drive the multiple rubber wheels 366 to rotate synchronously. Utilizing the frictional contact between the rubber wheels 366 and the outer wall of the utility pole 900, the rotating frame slides on the annular guide rail under the control of the rotary transmission device 360, thereby performing a 360° rotation around the utility pole 900. This expands the operator's working space and improves work efficiency, simplifies operation, and saves a significant amount of adjustment time.

[0075] The lifting mechanism 400 includes a connecting bracket 410, a lifting connecting rod 420, and an insulating platform assembly 430. The connecting bracket 410 is fixedly mounted on the rotating frame of the pole rotating mechanism 300. The insulating platform assembly 430 is located on the outside of the utility pole 900, and both ends of the lifting connecting rod 420 are hinged to the connecting bracket 410 and the insulating platform assembly 430, respectively. A tape reel lifting device 440 is provided on the connecting bracket 410 to control the rotation of the lifting connecting rod 420 and the lifting of the insulating platform assembly 430. The specific structure is as follows:

[0076] The connecting bracket 410 includes square tube one 411, square tube two 413, and square tube three 414. Two square tubes one 411 are vertically arranged and parallel to each other, and each of them has a hanging plate 412 at its top. The hanging plate 412 has bracket mounting holes 415. The two hanging plates 412 are fixed to the two square tube frames 320 respectively by bolts through the bracket mounting holes 415. Square tube two 413 is horizontally fixed at the rear end of the two hanging plates 412 or on the outer side of the top of the two square tubes one 411. Square tube three 414 is horizontally fixed on the inner side of the bottom end of the two square tubes one 411.

[0077] A rolling support device 450 is provided on the square tube 3 414. The rolling support device 450 includes a roller support 451, an adjusting screw 452, an adjusting nut 453, an adjusting handle 454, rubber rollers 455, a bushing 456, and a limiting guide shaft 457. The adjusting nut 453 is installed in the nut hole of the square tube 3 414. The adjusting screw 452 passes through the adjusting nut 453, and the external thread on the adjusting screw 452 is adapted to the internal thread on the inner wall of the adjusting nut 453. The roller support 451 is fixed to the front end of the adjusting screw 452. Two rubber rollers 455 are provided and installed in the roller support 451. The rubber rollers 455 can rotate along the outer wall of the utility pole 900. The adjusting handle 454 is installed at the rear end of the adjusting screw 452. Bushing 456 has two bushings symmetrically installed in the bushing holes of square tubes 414 on both sides of adjusting nut 453. Two limiting guide shafts 457 are correspondingly installed inside bushing 456, with their front ends fixed to roller supports 451. By rotating the adjusting screw 452 in the rolling support device 450, the two square tubes 411 can be adjusted to maintain a vertical state, thereby keeping the insulating platform assembly 430 in a horizontal and stable state, improving the operator's comfort and safety. Simultaneously, during the rotation of the pole rotating mechanism 300 and the lifting mechanism 400, the rubber rollers 455 in the rolling support device 450 maintain rolling contact with the outer wall of the utility pole 900, providing support for the insulating platform assembly 430. This ensures the stability of the insulating platform assembly 430 while reducing friction with the outer wall of the utility pole 900, making the rotation of the insulating platform assembly 430 smoother.

[0078] The insulating platform assembly 430 includes an insulating platform 431, with a square bracket 432 mounted at its front end. Four parallel and symmetrical lifting rods 420 are provided, each with its rear end hinged to the square bracket 432. The front ends of two of the lifting rods 420 are hinged to different heights on one of the square tubes 411, and the front ends of the other two lifting rods 420 are hinged to different heights on the other square tube 411. Therefore, the two lifting rods 420, together with the connecting bracket 410 and the insulating platform assembly 430, form a parallelogram structure. With two parallelogram structures in total, when the insulating platform assembly 430 is raised and lowered under the control of the conveyor belt lifting device 440, the two parallelogram structures can always keep the insulating platform assembly 430 in a horizontal and stable state, improving the operator's comfort and safety.

[0079] At least one of the four lifting links 420 is provided with a link positioning hole 421. A locking plate 433 is provided on the square bracket 432 where the link 420 connects to the square bracket 432. The locking plate 433 is provided with several adjusting positioning holes 434. The link positioning hole 421 and the adjusting positioning hole 434 can be locked together by a pin. After the insulating platform assembly 430 is adjusted to a predetermined height, the locking of the lifting link 420 and the locking plate 433 restricts its further ascent or descent, ensuring the stability of the insulating platform assembly 430 and improving the safety of the workers.

[0080] The tape lifting device 440 includes a tape motor base 441, a first helical gear 442, a second helical gear 443, a tape reel 444, a conveyor belt 445, an absolute encoder 447, and a brake motor 4421. The tape motor base 441 is mounted on a square tube 413, and the brake motor 4421 is mounted on the tape motor base 441. The first helical gear 442 and the second helical gear 443 mesh and are both mounted inside the tape motor base 441, with the first helical gear 442 connected to the output shaft of the brake motor 4421. The second helical gear 443 and the tape reel 444 are connected in series via the central shaft of the tape reel. The absolute encoder 447 is mounted on the outer end face of the tape reel 444 or on one end of the central shaft of the tape reel. One end of the conveyor belt 445 is fixed to the central shaft of the tape reel between the second helical gear 443 and the tape reel 444. A pulley mounting seat 449 is provided on the square bracket 432, and a pulley 4491 is installed on the pulley mounting seat 449. A fixed shaft 448 is installed inside the belt winding motor seat 441. The other end of the hoisting belt 445 passes around the pulley 4491 and is fixed on the fixed shaft 448.

[0081] The rotation of the brake motor 4421 drives the winding reel 444 to rotate via helical gear 1 442 and helical gear 2 443, thereby tightening the hoisting belt 445. At this time, under the action of the parallelogram mechanism of the lifting linkage 420, the insulating platform assembly 430 moves parallel to the hanging plate 412. Then, the pin is inserted into the linkage positioning hole 421 and the adjustment positioning hole 434 at the appropriate position to achieve the locking effect. At the same time, the absolute encoder 447 will also rotate and record the number of revolutions. The two extreme positions of tightening and loosening of the hoisting belt 445 can be controlled by the absolute encoder 447. Then, the position of the adjusting rubber roller 3 455 can be adjusted manually by the handle 454.

[0082] A guide wheel bracket 4461 is hinged inside the tape reel motor base 441. A guide wheel 446 is mounted at the front end of the guide wheel bracket 4461. The guide wheel 446 is pressed onto the lifting belt 445 by its own weight and the weight of the guide wheel bracket 4461 or the preload at the hinge of the guide wheel bracket 4461. The guide wheel bracket 4461 and the guide wheel 446 have a "directional adaptive adjustment" function: by dynamically matching the changes in the diameter of the central shaft of the tape reel (including the wound lifting belt 445), maintaining an appropriate clamping force, and limiting the deviation of the lifting belt 445 from its trajectory, a stable transmission state of "no slack, no wear, no deviation, and uniform winding" is ultimately achieved for the lifting belt 445. This provides key support for the smooth and precise lifting of the insulated platform assembly 430. The specific logic is as follows:

[0083] 1. Dynamically maintain "moderate clamping force" to avoid the hoisting belt being too loose or too tight.

[0084] The movement of the guide roller bracket 4461 is essentially "making directional angle fine adjustments around the circumference of the central axis of the tape reel". One end of it uses the tape motor base 441 (or a nearby fixed component) as a fulcrum, while the other end adaptively adjusts as the guide roller 446 conforms to the surface of the central axis of the tape reel.

[0085] When the diameter of the central shaft of the reel increases (when the hoisting belt 445 is wound): the hoisting belt 445 will exert an outward "pushing force" on the guide wheel 446, and the guide wheel bracket 4461 will "swing outward" accordingly, taking the guide wheel 446 away from the central shaft of the reel at the same time. This avoids excessive pressure on the hoisting belt 445 by the guide wheel 446, which could lead to wear. At the same time, it keeps the guide wheel 446 in contact with the hoisting belt 445, preventing the hoisting belt 445 from loosening due to insufficient pressure.

[0086] When the diameter of the central shaft of the reel decreases (when the hoisting belt 445 is released): the self-clamping force of the guide wheel 446 will drive the guide wheel bracket 4461 to "swing inward", bringing the guide wheel 446 closer to the central shaft of the reel in sync, filling the gap after the diameter decreases, preventing the hoisting belt 445 from wrinkling or slipping due to loss of clamping force, and ensuring that the hoisting belt 445 is always in a taut state.

[0087] This "dynamic pressure adjustment" design ensures that the hoisting belt 445 remains neither too loose nor too tight throughout the entire transmission process, which is the foundation for stable transmission.

[0088] 2. Move along the circumferential trajectory of the central axis of the reel to prevent the hoisting belt from deviating or derailing.

[0089] The movement trajectory of the guide wheel bracket 4461 strictly matches the circular contour of the central axis of the reel: when the guide wheel bracket 4461 moves, it always centers on the central axis of the reel, and the guide wheel 446 swings slightly along the outer circumference of the central axis of the reel without leaving the range of action of the central axis of the reel.

[0090] This directional movement allows the guide wheel 446 to continuously "limit" the hoisting belt 445, preventing the hoisting belt 445 from "running off course" or even "derailing" from the central axis of the reel due to lateral forces (such as the gravity offset of the insulating platform assembly 430) during winding / unwinding. This ensures that the hoisting belt 445 is always stably wound along the circumferential trajectory of the central axis of the reel, directly guaranteeing that the transmission path does not deviate.

[0091] 3. It helps ensure the uniformity of winding and improves transmission accuracy.

[0092] If the guide wheel bracket 4461 is fixed, the hoisting belt 445 will be wound unevenly (e.g., some areas are too thick and some areas are too thin), which will cause the number of rotations of the reel 444 to be mismatched with the actual length of the hoisting belt 445, resulting in counting error of the absolute encoder 447, and thus affecting the positional accuracy of the lifting of the insulating platform assembly 430.

[0093] The guide wheel bracket 4461 ensures that the hoisting belt 445 is wound evenly (with consistent pressure and no wrinkles) through its movement, so that the belt reel 444 corresponds to a fixed length of hoisting belt for each revolution, ensuring that the absolute encoder 447 counts accurately, and indirectly ensuring the "stable length accuracy" of the hoisting belt 445 transmission, avoiding deviation in the lifting position of the insulating platform assembly 430 due to transmission errors.

[0094] In the lifting mechanism 400, the hanging plate 412 is fixed to the two square tube frames 320 of the rotating frame through the bracket mounting holes 415. Under the action of gravity, the insulating platform assembly 430 falls, causing the hoisting belt 445 to tighten. Then, the remote-controlled brake motor 4421 rotates, and the hoisting belt 445 is wound onto the central shaft of the reel 444. This allows for horizontal adjustment of the height and distance of the insulating platform. The brake motor 4421 has a power-off self-locking function, which can lock the platform at any position. During operation, the brake motor 4421 and the absolute encoder 447 monitor and adjust the operating status in real time. The absolute encoder 447 has a power-off memory function, which limits the upward and downward limits of the insulating platform assembly 430. After the insulating platform assembly 430 reaches the appropriate position, the pin is inserted into the connecting rod positioning hole 421 and the adjustment positioning hole 434 to achieve a double protection function. Then, by rotating the adjusting handle 454, the distance of the rubber roller 455 can be adjusted to achieve fine adjustment of the insulation platform assembly 430, that is, fine adjustment of the tilt angle of the insulation platform assembly 430 so that the insulation platform assembly 430 is in a horizontal state, at which point the operator can enter the platform to work.

[0095] In the lifting mechanism 400 of the pole-rotating lifting platform device of the present invention, the rotation of the lifting connecting rod 420 is controlled by the belt lifting device 440, thereby driving the lifting of the insulating platform assembly 430, thereby achieving precise adjustment of the lifting height. It can cover different working points at different heights of the utility pole 900, without the need for frequent movement of equipment, greatly improving work efficiency; moreover, it can achieve large displacement lifting in small spaces, making it suitable for narrow working environments.

[0096] The present invention provides a pole-rotating lifting platform device with a compact structure, which can realize 360° rotation and precise height adjustment for utility pole operations. It is easy to install and use, simple to operate, has a wide operating range, high operating efficiency, and higher stability.

[0097] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pole-rotating lifting platform device, characterized in that, Includes a pole rotation mechanism (300) and a lifting mechanism (400); The pole-holding rotation mechanism (300) includes a rotating frame, a jacking limit device (340), and a rotation transmission device (360). The jacking limit device (340) and the rotation transmission device (360) are both installed in the rotating frame and limit and clamp the utility pole (900). The rotating frame is controlled to rotate around the utility pole (900) by the rotation transmission device (360). The lifting mechanism (400) includes a connecting bracket (410), a lifting link (420), and an insulating platform assembly (430). The connecting bracket (410) is fixedly installed on the rotating frame. The insulating platform assembly (430) is located on the outside of the utility pole (900), and the two ends of the lifting link (420) are respectively hinged to the connecting bracket (410) and the insulating platform assembly (430). The connecting bracket (410) is provided with a tape lifting device (440) to control the rotation of the lifting link (420) and the lifting of the insulating platform assembly (430).

2. The boom-rotating lifting platform device according to claim 1, characterized in that, The rotating frame includes a C-shaped rotating frame and a front arc-shaped rotating frame (330). The C-shaped rotating frame and the front arc-shaped rotating frame (330) are rotatably connected at one end by a rotating shaft (380), and the other end is locked by a quick-release pin (370). The C-shaped rotating frame consists of a rear arc-shaped rotating frame (310) and a square tube frame (320). Two square tube frames (320) are provided and fixedly connected to both sides of the rear arc-shaped rotating frame (310). The rear arc-shaped rotating frame (310) consists of an upper arc-shaped fixing plate (311) and a lower arc-shaped fixing plate (312) that are parallel to each other. The front arc-shaped rotating frame (330) consists of an upper arc-shaped rotating plate (331) and a lower arc-shaped rotating plate (332) that are parallel to each other. The upper arc-shaped fixing plate (311) and the lower arc-shaped fixing plate (312), and the upper arc-shaped rotating plate (331) and the lower arc-shaped rotating plate (332) are fixedly supported by several support columns.

3. The boom-rotating lifting platform device according to claim 2, characterized in that, The lower end face of the upper arc-shaped fixing plate (311) and the upper end face of the lower arc-shaped fixing plate (312) are both provided with jacking slide rails (313). The two jacking slide rails (313) are parallel to each other and arranged along the axial direction of the utility pole (900). The jacking limiting device (340) includes a wheel frame (341), a rubber wheel (342), a jacking nut (345), and a jacking screw (346). The jacking nut (345) is mounted on the two jacking slide rails (313) and slides through a nut seat (344). The wheel frame (341) is set on the lower end face of the upper arc-shaped fixing plate (311) and the upper end face of the lower arc-shaped fixing plate (312). A buffer spring (343) is provided on the inner side of the rear arc-shaped rotating frame (310) and between it and the nut seat (344). At least two rubber wheels (342) are provided and are all mounted on the wheel frame (341). One end of the jacking screw (346) is installed in the jacking nut (345), and the external thread provided at its end is adapted to the internal thread provided on the inner wall of the jacking nut (345). The other end of the jacking screw (346) is fixed on the output shaft of the jacking motor (347) installed in the rear arc-shaped rotating frame (310).

4. The boom-rotating lifting platform device according to claim 3, characterized in that, At least two linear bearings (348) are installed inside the rear arc-shaped rotating frame (310). Each linear bearing (348) is equipped with a guide shaft (349). The guide shaft (349) is parallel to the lead screw (346) and its front end is fixed on the wheel frame (341).

5. The boom-rotating lifting platform device according to claim 2, characterized in that, The rotary transmission device (360) includes a pulley fixing plate (361), a first synchronous pulley (362), a second synchronous pulley (363), a synchronous belt (364), a pulley motion motor (365), and a second rubber wheel (366). The pulley fixing plate (361) is installed on the upper end face of the upper arc-shaped rotating plate (331). There are two second synchronous pulleys (363), which are installed on the upper end face of the pulley fixing plate (361) along with the first synchronous pulley (362) through bearings. The two second synchronous pulleys (363) and the first synchronous pulley (362) are located at the three endpoints of an isosceles triangle, respectively. The synchronous belt (364) is installed on the two second synchronous pulleys (363) and the first synchronous pulley (362). The first synchronous pulley (362) is rotated by the pulley motion motor (365). There are two second rubber wheels (366), which are fixedly installed on the rotation shafts of the two second synchronous pulleys (363).

6. The boom-rotating lifting platform device according to claim 2, characterized in that, A pole-holding locking platform is fixed to the outer wall of the utility pole (900). An annular guide rail is provided on the upper surface of the pole-holding locking platform. The rotating frame is mounted on the annular guide rail for sliding via a sliding limit device (350). Two sliding limit devices (350) are provided and are respectively installed on the lower end surfaces of the two square tube frames (320). Each of them includes a linear guide rail (351), a roller slider (352), a slider mounting seat (353), and a V-groove roller (352). 4) The linear guide rail (351) is installed on the lower end face of the square tube frame (320), the roller slider (352) is installed on the linear guide rail (351) and slides, the slider mounting seat (353) is fixed on the lower end face of the roller slider (352), the V-groove roller (354) is installed on the lower end face of the slider mounting seat (353), and the V-groove on the V-groove roller (354) can engage with the annular guide rail on the upper end face of the clamping platform and slide.

7. The boom-rotating lifting platform device according to claim 2, characterized in that, The connecting bracket (410) includes square tube one (411), square tube two (413) and square tube three (414). There are two square tubes one (411) arranged vertically and parallel to each other. Each of them has a hanging plate (412) at its top. The hanging plate (412) has a bracket mounting hole (415). The two hanging plates (412) are fixed to the two square tube frames (320) respectively by bolts in the bracket mounting holes (415). The square tube two (413) is horizontally fixed at the rear end of the two hanging plates (412) or the outer side of the top of the two square tubes one (411). The square tube three (414) is horizontally fixed at the inner side of the bottom end of the two square tubes one (411).

8. The boom-rotating lifting platform device according to claim 7, characterized in that, A rolling support device (450) is provided on the square tube three (414). The rolling support device (450) includes a roller support (451), an adjusting screw (452), an adjusting nut (453), an adjusting handle (454), a rubber roller three (455), a bushing (456), and a limiting guide shaft (457). The adjusting nut (453) is installed in the nut hole of the square tube three (414). The adjusting screw (452) is inserted through the adjusting nut (453), and the external thread on the adjusting screw (452) is adapted to the internal thread on the inner wall of the adjusting nut (453). The seat (451) is fixed to the front end of the adjusting screw (452). Two rubber rollers (455) are provided and installed in the roller support (451). The rubber rollers (455) can rotate along the outer wall of the utility pole (900). The adjusting handle (454) is installed at the rear end of the adjusting screw (452). Two bushings (456) are provided and symmetrically installed in the bushing holes of the square tubes (414) on both sides of the adjusting nut (453). Two limiting guide shafts (457) are provided and correspondingly installed in the bushings (456), and their front ends are fixed on the roller support (451).

9. A boom-rotating lifting platform device according to claim 7, characterized in that, The insulating platform assembly (430) includes an insulating platform (431), and a square bracket (432) is installed at the front end of the insulating platform (431). The lifting rods (420) are provided with four parallel and symmetrical rods, the rear ends of which are all hinged to the square bracket (432). The front ends of two of the lifting rods (420) are hinged to different heights on one of the square tubes (411), and the front ends of the other two lifting rods (420) are hinged to different heights on another square tube (411). At least one of the four lifting rods (420) is provided with a rod positioning hole (421), and a locking plate (433) is provided on the square bracket (432) at the connection between the lifting rod and the square bracket (432). The locking plate (433) is provided with several adjustment positioning holes (434), and the rod positioning hole (421) and the adjustment positioning hole (434) can be locked and fixed by a pin.

10. A boom-rotating lifting platform device according to claim 9, characterized in that, The tape lifting device (440) includes a tape motor mount (441), a first helical gear (442), a second helical gear (443), a tape reel (444), a hoisting belt (445), an absolute encoder (447), and a brake motor (4421). The tape motor mount (441) is mounted on a square tube (413), and the brake motor (4421) is mounted on the tape motor mount (441). The first helical gear (442) and the second helical gear (443) mesh and are both mounted inside the tape motor mount (441), and the first helical gear (442) is connected to the output shaft of the brake motor (4421). The second helical gear (443) and the tape reel (444) are connected in series through the central shaft of the tape reel. The absolute encoder (447) is mounted on the outer end face of the tape reel (444) or mounted on... One end of the central shaft of the reel is fixed to the central shaft of the reel between the helical gear two (443) and the reel (444); a pulley mounting seat (449) is provided on the square bracket (432), a pulley (4491) is installed on the pulley mounting seat (449), a fixed shaft (448) is installed in the reel motor seat (441), and the other end of the lifting belt (445) is fixed on the fixed shaft (448) after passing around the pulley (4491); a guide wheel bracket (4461) is hinged in the reel motor seat (441), a guide wheel (446) is installed at the front end of the guide wheel bracket (4461), and the guide wheel (446) is pressed onto the lifting belt (445) by its own weight and the weight of the guide wheel bracket (4461) or the preload at the hinge of the guide wheel bracket (4461).

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