Hydraulic guide rail type limiting lifting platform

Abstract

The application discloses a hydraulic guide rail type limiting lifting platform, which comprises a lower supporting seat arranged on the outer periphery of the base of a high-pole lamp post, a lower positioning seat is arranged on the top of the lower supporting seat, a plurality of first push rods are evenly distributed in an annular array and are arranged on the top of the lower positioning seat, an upper positioning seat is arranged on the extension end of each first push rod, a platform support plate is arranged on the top of the upper positioning seat, a fence is arranged on the upper surface edge of the platform support plate, a safety guide rail is fixedly connected to the outer periphery of the high-pole lamp post, the lower positioning seat and the upper positioning seat each comprise an outer support frame, a positioning assembly is arranged in the outer support frame, a damping machine is arranged on the triangular connecting plate and located on one side of the safety guide rail, the damping machine corresponds to the safety guide rail, and the working personnel can be quickly and stably lifted to the top, the platform has the capability of flexible maintenance around the lamp pole, more tools and spare parts can be carried for replacement, the platform can be used for lifting on any rod-shaped super-high object, and the platform is convenient to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to the field of high-mast lighting technology, specifically a hydraulic guide rail type limit lifting platform. Background Technology

[0002] High mast lighting is a type of lighting facility that typically mounts lighting fixtures on an upright metal pole. It is widely used in various fields such as urban square lighting, dock lighting, airport lighting, and stadium lighting. The metal pole is usually 15 meters or higher, and the number of lighting fixtures is two or more, making maintenance difficult.

[0003] Patent document CN112944257A discloses an automatic lifting system for high-mast lights, including a high-mast body, a light panel lifting drive system, a light panel, a wire rope transmission component, and a high-altitude power supply junction docking component. The light panel lifting drive system is installed at the bottom of the high-mast body, and a main cable is fixed inside the high-mast body. The light panel is fitted onto the outside of the high-mast body and connected to the light panel lifting drive system via the wire rope transmission component, enabling the light panel lifting drive system to drive the light panel to rise and fall. This invention fixes the main cable inside the high-mast body. The moving end component in the high-altitude power supply junction docking component docks with or detaches from the fixed end component as the light panel rises and falls. During the entire lifting and lowering process of the light panel, the main cable does not move back and forth with the light panel, avoiding the possibility of the main and auxiliary wire ropes becoming entangled and twisted with the main cable, and also preventing the main and auxiliary wire ropes from breaking due to excessive twisting.

[0004] The above-mentioned device has the following shortcomings: it cannot be used to allow staff to ascend for maintenance, some parts of the lamp post need to be disassembled for maintenance, which is time-consuming and labor-intensive. In addition, the above-mentioned device requires the lamp post itself to have a drive structure to cooperate with it, and it cannot be used to repair the drive structure at the top of the lamp post. Furthermore, the above-mentioned device has a limited range of applications and cannot be used for lamp posts of all diameters and heights. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems and shortcomings by providing a hydraulic guide rail type limit lifting platform, thereby improving overall work efficiency.

[0006] The technical problem solved by this invention is: (1) The above-mentioned device cannot be used to arrange for staff to go up for maintenance. Some parts of the light pole need to be disassembled for maintenance, which is time-consuming and laborious. (2) The above device requires the lamp post itself to have a driving structure to cooperate with it, and the driving structure at the top of the lamp post itself cannot be repaired; (3) The above-mentioned device has a limited scope of application and cannot be applied to lamp posts of all diameters and heights.

[0007] The objective of this invention can be achieved through the following technical solution: A hydraulic guide rail type limiting lifting platform includes a lower support seat disposed on the outer periphery of the base of a high-mast lamp post. A lower positioning seat is placed on the top of the lower support seat. Several first push rods are evenly distributed in a circular array on the top of the lower positioning seat. An upper positioning seat is commonly installed on the telescopic end of each of the first push rods. A platform support plate is installed on the top of the upper positioning seat. Several inclined support plates are evenly distributed in a circular array on the lower surface of the platform support plate. A fence is installed at the edge of the upper surface of the platform support plate. A safety guide rail is fixedly connected to the outer periphery of the high-mast lamp post. Both the lower and upper positioning seats include an outer support frame. A positioning component is installed inside the outer support frame. The outer support frames are evenly distributed in a circular array, and adjacent outer support frames are connected by a triangular connecting plate. A damping mechanism is provided on the triangular connecting plate on one side of the safety guide rail, and the damping mechanism corresponds to the safety guide rail.

[0008] As a further aspect of the invention, the positioning component includes an I-shaped frame, with a pressure-resistant square tube fixedly connected to the middle of one side of the I-shaped frame. A first connecting seat is hinged to the left side of the I-shaped frame, and a second connecting seat is hinged to the right side of the I-shaped frame. A first support frame and a second support frame are mounted on the second connecting seat. A snap-fit ​​groove is provided at one end of the first connecting seat, and a clamping buckle is installed at one end of the second support frame. The clamping buckle and the first connecting seat are correspondingly snapped together through the snap-fit ​​groove.

[0009] As a further aspect of the invention, a winding reel is rotatably connected to both ends of the interior of the first support frame, and several pulleys are rotatably connected to the inner middle of the first support frame and the inner side of the second support frame. Tension-resistant cables are installed on the winding reel and the pulleys, and both ends of the tension-resistant cables are fixedly connected to the winding reel.

[0010] As a further aspect of the invention, a drive motor is installed on the first support frame and on one side of each winding reel. The drive motor rotates the winding reel, and the two winding reels on each first support frame rotate in opposite directions at the same speed. The tensile cable is wound in a serpentine pattern. The pulley on the second support frame is movable, while the pulley on the first support frame is fixed.

[0011] As a further embodiment of the invention, positioning plates are installed on both the upper and lower sides of one end of the pressure-resistant square tube. A second push rod is installed on the lower side of the upper positioning plate, and side support plates are installed on both sides of the upper side of the lower positioning plate. A wedge rod is installed at the telescopic end of the second push rod, and a wedge block is installed at the lower end of the wedge rod.

[0012] As a further embodiment of the invention, a support top plate is installed on one end of the two side support plates near the pressure-resistant square tube. The support top plate is fixedly connected to the pressure-resistant square tube through a support tube. A support shaft is rotatably connected between the two side support plates, and a friction block is fixedly sleeved on the outer periphery of the support shaft.

[0013] As a further aspect of the invention, an iron block is embedded at the bottom of the friction block near the supporting top plate, a friction film is embedded on the side of the friction block near the high pole lamp post, and a permanent magnet block is embedded in the middle of the side of the supporting top plate near the friction block.

[0014] As a further embodiment of the invention, a support column is installed between the side support plate and the positioning plate located above, and a diagonal brace is installed between the upper end of the support top plate and the pressure-resistant square tube.

[0015] As a further aspect of the invention, the side of the friction block near the supporting top plate is an inclined surface, and the side of the wedge block near the friction block is an inclined surface and cooperates with the friction block.

[0016] The beneficial effects of this invention are: (1) During operation, the lower support seat provides auxiliary support for the safety guide rail to prevent it from tilting. At the same time, the outer perimeter of the high-mast lamp post base is wrapped to prevent the irregular shape of the high-mast lamp post base from damaging the lower positioning seat. Then, the lower positioning seat, upper positioning seat, first push rod, platform support plate, diagonal support plate and fence are assembled together and installed on the high-mast lamp post. Then, the staff stands on the platform support plate and uses this device to rise to the top of the high-mast lamp post for maintenance. During the raising process, the lower positioning seat first clamps the high-mast lamp post, then the first push rod lifts the upper positioning seat, then the upper positioning seat clamps the high-mast lamp post, and at the same time the lower positioning seat is released. Then, the first push rod retracts and lifts the lower positioning seat, then the lower positioning seat clamps the high-mast lamp post again, and at the same time the upper positioning seat... Once the seat is released, the above steps are repeated to quickly and stably raise the worker to the top. The platform support allows the worker to flexibly perform maintenance around the lamp post, providing more space for repairs and enabling the worker to carry more tools and parts for replacement. This device can be raised and lowered on any pole-shaped, high-rise object, is easy to assemble and disassemble, and its components can be stored and transported separately, facilitating rapid deployment. It can be flexibly adjusted according to the diameter, bending resistance, and height of the object being repaired, making it widely applicable. At the same time, the safety features, including safety rails and damping mechanisms, enhance safety, preventing falls and protecting workers. It also allows workers to be directly assigned to nearby repairs, avoiding the need to disassemble the entire lamp post. (2) During operation, the number of positioning components is set according to the weight of the personnel and equipment being carried. Then, the positioning components are placed evenly around the high pole lamp post at equal angles. The clamping buckle and the first connecting seat are clamped together by the snap-fit ​​groove. Then, the second push rod extends synchronously to the same length, pushing the wedge rod into the space between the support top plate and the friction block, so that the wedge block is clamped by the support top plate and the friction block. Then, the drive motors of each positioning component rotate synchronously at the same speed, and tighten the anti-tension cable synchronously at the same speed, and wind the anti-tension cable onto the winding reel, so that each friction block simultaneously abuts against the side of the high pole lamp post. The friction film improves the stability of the abutment and avoids scratching the high pole lamp post. When abutting, the reaction thrust of the high pole lamp post on the friction block is distributed through the support tube, which can reduce the overall weight, increase the load, and improve the support strength, obtain greater support force and friction force. Through direct maintenance by the personnel, the problem of the lamp post having to be dismantled due to the obstruction of the drive component at the top of the lamp post and the inability to rotate, which prevents the lamp holder from falling, is avoided, thus achieving the integrity of the lamp post. (3) When the lifting and lowering begins, the second push rod retracts synchronously, lifting the wedge rod and retracting the wedge block. Under the magnetic attraction of the permanent magnet block, the iron block moves and drives the friction block to rotate, causing the friction film to separate from the high pole lamp post and no longer abut. This facilitates the lifting or lowering of the lower and upper positioning seats by the first push rod. Both the first and second push rods are hydraulic push rods, which increase the thrust through hydraulic pressure. At the same time, each first push rod and each second push rod maintains synchronization when working separately, shortening the gap between each lifting, increasing the speed, and maintaining a large load capacity through support. The column and diagonal brace provide auxiliary support, improving the overall structural strength of the positioning component when it pushes against the high-pole lamp post. When the wedge moves down, the friction block rotates along with the wedge, increasing the pressure on the friction film and thus obtaining greater friction for stable support. At the same time, the square structure and size of the lower part of the friction block prevents it from rotating excessively during contact, and its own weight provides assistance, so that the second push rod does not require a large pushing force, thereby further reducing costs. Moreover, the number of positioning components can be flexibly adjusted to fully adapt to various lamp posts. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 This is a front view of the overall structure of the present invention when it is installed on a high-mast lamp post; Figure 3 This is a top view of the overall structure of the positioning base of the present invention; Figure 4 This is a top view of the connection structure when the positioning components of the present invention are interconnected; Figure 5 This is a top view of the overall structure of the positioning component 12 of the present invention; Figure 6 This is a side view of the internal structure of the positioning component of the present invention; Figure 7 This is a side view of the connection structure of the first support frame, the tensile cable, and the second support frame of the present invention. In the diagram: 1. Lower support seat; 2. Lower positioning seat; 3. Upper positioning seat; 4. First push rod; 5. Platform support plate; 6. Diagonal brace plate; 7. Guardrail; 8. Safety guide rail; 9. Outer support frame; 10. Triangular connecting plate; 11. Damping mechanism; 12. Positioning assembly; 13. I-beam frame; 14. Compression-resistant square tube; 15. First connecting seat; 16. Second connecting seat; 17. First support frame; 18. Rewinding reel; 19. Second... 20. Support frame; 21. Tension cable; 22. Clamping buckle; 23. Drive motor; 24. Positioning plate; 25. Second push rod; 26. Support column; 27. Side support plate; 28. Friction block; 29. ​​Support shaft; 30. Support top plate; 31. Pulley; 32. Wedge rod; 33. Wedge block; 34. Iron block; 35. Permanent magnet block; 36. Diagonal brace; 37. Support tube; 38. Snap-fit ​​groove; 39. Friction rubber sheet. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] Please see Figure 1-7 As shown: A hydraulic guide rail type limit lifting platform includes a lower support seat 1 set on the outer periphery of the base of a high-mast lamp post. A lower positioning seat 2 is placed on the top of the lower support seat 1. Several first push rods 4 are evenly distributed in a circular array on the top of the lower positioning seat 2. An upper positioning seat 3 is installed on the telescopic end of each first push rod 4. A platform support plate 5 is installed on the top of the upper positioning seat 3. Several inclined support plates 6 are evenly distributed in a circular array on the lower surface of the platform support plate 5. A fence 7 is installed at the edge of the upper surface of the platform support plate 5. A safety guide rail 8 is fixedly connected to the outer periphery of the high-mast lamp post. Both the lower positioning seat 2 and the upper positioning seat 3 include an outer support frame 9. A positioning component 12 is installed inside the outer support frame 9. The outer support frames 9 are evenly distributed in a circular array, and adjacent outer support frames 9 are connected by a triangular connecting plate 10. A damping machine 11 is provided on the triangular connecting plate 10 and on one side of the safety guide rail 8. The damping machine 11 corresponds to the safety guide rail 8. In this embodiment, the lower support seat 1 provides auxiliary support for the safety guide rail 8 to prevent it from tilting. Simultaneously, it wraps around the outer perimeter of the high-mast lamp post base to prevent damage to the lower positioning seat 2 due to its irregular shape. Then, the lower positioning seat 2, upper positioning seat 3, first push rod 4, platform support plate 5, diagonal support plate 6, and fence 7 are assembled and installed onto the high-mast lamp post. Workers then stand on the platform support plate 5 and use this device to rise to the top of the high-mast lamp post for maintenance. During the raising process, the lower positioning seat 2 first clamps the high-mast lamp post, then the first push rod 4 lifts the upper positioning seat 3. Next, the upper positioning seat 3 clamps the high-mast lamp post while the lower positioning seat 2 releases. Then, the first push rod 4 retracts and lifts the lower positioning seat 2. The lower positioning seat 2 clamps the high-pole lamp post again, while the upper positioning seat 3 releases. By repeating the above steps, the device can quickly and stably raise the worker to the top. The platform support plate 5 allows the worker to flexibly perform maintenance around the lamp post. The worker has more space for maintenance and can carry more tools and parts for replacement. This device can be raised and lowered on any pole-shaped, high-rise object. It is easy to assemble and disassemble, and the components can be stored and transported separately, which is conducive to rapid deployment. It can be flexibly adjusted according to the diameter, bending resistance, and height of the object being repaired, and has a wide range of applications. At the same time, the safety rail 8 and damping machine 11 improve safety and prevent accidental falls, protecting the worker.

[0021] The positioning component 12 includes an I-shaped frame 13. A pressure-resistant square tube 14 is fixedly connected to the middle of one side of the I-shaped frame 13. A first connecting seat 15 is hinged to the left side of the I-shaped frame 13, and a second connecting seat 16 is hinged to the right side of the I-shaped frame 13. A first support frame 17 and a second support frame 19 are installed on the second connecting seat 16. A snap-fit ​​groove 37 is provided at one end of the first connecting seat 15, and a clamping buckle 21 is installed at one end of the second support frame 19. The clamping buckle 21 and the first connecting seat 15 are correspondingly snapped together through the snap-fit ​​groove 37. Both ends of the first support frame 17 are rotatably connected to a winding reel 18. Several pulleys 30 are rotatably connected to the inner middle of the first support frame 17 and the inner side of the second support frame 19. Tension-resistant cables 20 are installed on the winding reels 18 and the pulleys 30. Both ends of the tension-resistant cables 20 are fixedly connected to the winding reels 18. A drive motor 22 is installed on the first support frame 17 and on one side of each winding reel 18. The drive motor 22 rotates the winding reels 18. The two winding reels 18 on each first support frame 17 rotate in opposite directions at the same speed. The tension-resistant cables 20 are wound in a serpentine pattern. The pulleys 30 on the second support frame 19 are movable, while the pulleys 30 on the first support frame 17 are fixed. Positioning plates 23 are installed on both the upper and lower sides of one end of the pressure-resistant square tube 14. A second push rod 24 is installed on the lower side of the upper positioning plate 23. Side support plates 26 are installed on both sides of the upper side of the lower positioning plate 23. A wedge rod 31 is installed at the telescopic end of the second push rod 24. A wedge block 32 is installed at the lower end of the wedge rod 31. A support top plate 29 is installed on the two side support plates 26 near the end of the pressure-resistant square tube 14. The support top plate 29 is fixedly connected to the pressure-resistant square tube 14 through the support tube 36. A support shaft rod 28 is rotatably connected between the two side support plates 26. A friction block 27 is fixedly sleeved on the outer periphery of the support shaft rod 28. An iron block 33 is embedded at the bottom of the side of the friction block 27 near the support top plate 29. A friction film 38 is embedded on the side of the friction block 27 near the high pole lamp post. A permanent magnet block 34 is embedded in the middle of the side of the support top plate 29 near the friction block 27. In this embodiment, the number of positioning components 12 is set according to the weight of the personnel and equipment being carried. Then, the positioning components 12 are placed evenly around the high pole lamp post at equal angles. The clamping buckle 21 and the first connecting seat 15 are engaged together through the snap-fit ​​groove 37. Then, the second push rod 24 extends synchronously to the same length, pushing the wedge rod 31 into the space between the support top plate 29 and the friction block 27, so that the wedge block 32 is clamped by the support top plate 29 and the friction block 27. Then, the drive motors 22 of each positioning component 12 rotate synchronously at the same speed, and tighten the tensile cable 20 synchronously at the same speed, winding the tensile cable 20 onto the winding reel 18, so that each friction block 27 simultaneously abuts against the side of the high pole lamp post. The friction film 38 improves the stability of the abutment and avoids scratching the high pole lamp post. When abutting, the reaction thrust of the high pole lamp post on the friction block 27 is distributed through the support tube 36, which can reduce the overall weight, increase the load capacity, and improve the support strength, thereby obtaining greater support force and friction. When the lifting and lowering begins, the second push rod 24 retracts synchronously, lifting the wedge rod 31 and retracting the wedge block 32. Under the magnetic attraction of the permanent magnet block 34, the iron block 33 moves and drives the friction block 27 to rotate, causing the friction film 38 to separate from the high pole lamp post and no longer abut. This facilitates the first push rod 4 to lift or lower the lower positioning seat 2 and the upper positioning seat 3. Both the first push rod 4 and the second push rod 24 are hydraulic push rods. The thrust is increased by hydraulic pressure, and at the same time, each first push rod 4 and each second push rod 24 maintains its own synchronization when working, shortening the gap between each lifting, increasing the speed, and maintaining a large load.

[0022] A support column 25 is installed between the side support plate 26 and the positioning plate 23 located above. A diagonal brace 35 is installed between the upper end of the support top plate 29 and the pressure-resistant square tube 14. The support column 25 and the diagonal brace 35 provide auxiliary support, thereby improving the overall structural strength of the positioning component 12 when it pushes against the high-mast lamp post.

[0023] The side of the friction block 27 near the supporting top plate 29 is inclined, and the side of the wedge block 32 near the friction block 27 is also inclined and cooperates with the friction block 27. When the wedge block 32 moves down, the friction block 27 rotates with the wedge block 32 and increases the pressure on the friction film 38, thereby obtaining greater friction for stable support. At the same time, the square structure and size of the lower part of the friction block 27 prevents the friction block 27 from rotating excessively when it comes into contact, and it uses its own weight for assistance, so that the second push rod 24 does not need a large thrust, thereby further reducing costs.

[0024] In use, the worker uses the lower support seat 1 to provide auxiliary support for the safety guide rail 8, preventing it from tilting. Simultaneously, the lower support seat 1 is wrapped around the outer perimeter of the high-pole lamp post base to prevent damage to the lower positioning seat 2 due to its irregular shape. Then, the lower positioning seat 2, upper positioning seat 3, first push rod 4, platform support plate 5, diagonal support plate 6, and fence 7 are assembled and installed onto the high-pole lamp post. The worker then stands on the platform support plate 5 and uses this device to rise to the top of the high-pole lamp post for maintenance. During the raising process, the lower positioning seat 2 first clamps the high-pole lamp post, then the first push rod 4 lifts the upper positioning seat 3. Next, the upper positioning seat 3 clamps the high-pole lamp post while the lower positioning seat 2 releases. Then, the first push rod 4 retracts and lifts the lower positioning seat 2, which then clamps the lamp post again. The high-pole lamp post is raised, and the upper positioning seat 3 is released. By repeating the above steps, the device can quickly and stably raise the staff to the top. The platform support plate 5 enables the staff to flexibly repair the lamp post. The staff has more space for repair and can carry more tools and parts for replacement. The device can be raised and lowered on any pole-shaped object with a high height. It is easy to assemble and disassemble. Each part can be stored and transported separately, which is conducive to rapid deployment. It can be flexibly adjusted according to the diameter, bending resistance and height of the object being repaired. It has a wide range of applications. At the same time, the safety rail 8 and the damping machine 11 are set to improve safety and prevent accidental falls, protecting the staff. At the same time, the staff can be arranged to repair nearby directly, avoiding the need to disassemble the entire lamp post. During operation, the number of positioning components 12 is determined according to the weight of the personnel and equipment being carried. The positioning components 12 are then evenly placed around the high-mast lamp post at equal angles. The clamping buckle 21 and the first connecting seat 15 are engaged through the snap-fit ​​groove 37. Subsequently, the second push rod 24 extends synchronously to the same length, pushing the wedge rod 31 into the space between the supporting top plate 29 and the friction block 27, causing the wedge block 32 to be clamped by the supporting top plate 29 and the friction block 27. Then, the drive motors 22 of each positioning component 12 rotate synchronously at the same speed, simultaneously tightening the tensile cable 20. 0 is wound onto the take-up reel 18, so that each friction block 27 simultaneously abuts against the side of the high-pole lamp post. The friction film 38 improves the stability of the abutment and avoids scratching the high-pole lamp post. When abutting, the reaction thrust of the high-pole lamp post on the friction block 27 is distributed through the support tube 36, which can reduce the overall weight, increase the load-bearing capacity, and improve the support strength, thereby obtaining greater support force and friction. This allows for direct maintenance by staff, avoiding a series of problems such as the lamp post top drive component being blocked and unable to rotate, which would prevent the lamp holder from falling down, thus ensuring the integrity of the lamp post. When lifting and lowering begins, the second push rod 24 retracts synchronously, raising the wedge rod 31 and retracting the wedge block 32. Under the magnetic attraction of the permanent magnet block 34, the iron block 33 moves and drives the friction block 27 to rotate, causing the friction film 38 to separate from the high-mast lamp post and no longer contact it. This facilitates the first push rod 4 to raise or lower the lower positioning seat 2 and the upper positioning seat 3. Both the first push rod 4 and the second push rod 24 are hydraulic push rods, which increase the thrust through hydraulic pressure. At the same time, each first push rod 4 and each second push rod 24 maintains synchronization when working, shortening the gap between each lifting, increasing the speed, and maintaining a large load capacity through the support column. The 25 and the diagonal brace 35 provide auxiliary support, improving the overall structural strength of the positioning component 12 when it pushes against the high pole lamp post. When the wedge 32 moves down, the friction block 27 rotates with the wedge 32 and increases the pressure on the friction film 38, thereby obtaining greater friction for stable support. At the same time, the square structure and size of the lower part of the friction block 27 prevents it from rotating excessively during contact and uses its own weight for assistance, so that the second push rod 24 does not need a large thrust, thereby further reducing costs. The number of positioning components 12 can be flexibly adjusted to fully adapt to various lamp posts.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A hydraulic guide rail type limit lifting platform, characterized in that, The system includes a lower support base (1) located on the outer periphery of the base of the high-mast lamp post. A lower positioning base (2) is located on the top of the lower support base (1). Several first push rods (4) are evenly distributed in a circular array on the top of the lower positioning base (2). An upper positioning base (3) is installed on the telescopic end of each of the first push rods (4). A platform support plate (5) is installed on the top of the upper positioning base (3). Several inclined support plates (6) are evenly distributed in a circular array on the lower surface of the platform support plate (5). At the edge of the upper surface of the platform support plate (5) The fence (7) is installed, and the safety guide rail (8) is fixedly connected to the outer side wall of the high pole lamp post. The lower positioning seat (2) and the upper positioning seat (3) both include an outer support frame (9). The positioning component (12) is installed inside the outer support frame (9). The outer support frames (9) are evenly distributed in a ring array, and adjacent outer support frames (9) are connected by a triangular connecting plate (10). A damping machine (11) is provided on the triangular connecting plate (10) and on one side of the safety guide rail (8). The damping machine (11) corresponds to the safety guide rail (8). Positioning plates (23) are installed on both the upper and lower sides of one end of the pressure-resistant square tube (14). A second push rod (24) is installed on the lower side of the upper positioning plate (23). Side support plates (26) are installed on both sides of the upper side of the lower positioning plate (23). A wedge rod (31) is installed at the telescopic end of the second push rod (24). A wedge block (32) is installed at the lower end of the wedge rod (31). A support top plate (29) is installed at one end of the two side support plates (26) near the pressure-resistant square tube (14). The support top plate (29) is fixedly connected to the pressure-resistant square tube (14) through the support tube (36). A support shaft (28) is rotatably connected between the two side support plates (26). A friction block (27) is fixedly sleeved on the outer periphery of the support shaft (28). The friction block (27) has an iron block (33) embedded at the bottom of the side near the supporting top plate (29), a friction film (38) embedded on the side of the friction block (27) near the high pole lamp post, and a permanent magnet block (34) embedded in the middle of the side of the supporting top plate (29) near the friction block (27). A support column (25) is installed between the side support plate (26) and the positioning plate (23) located above, and a diagonal brace (35) is installed between the upper end of the support top plate (29) and the pressure-resistant square tube (14). The friction block (27) has an inclined surface on one side near the supporting top plate (29), and the wedge block (32) has an inclined surface on one side near the friction block (27) and cooperates with the friction block (27).

2. The hydraulic guide rail type limit lifting platform according to claim 1, characterized in that, The positioning component (12) includes an I-shaped frame (13), a pressure-resistant square tube (14) is fixedly connected to the middle of one side of the I-shaped frame (13), a first connecting seat (15) is hinged to the left side of the I-shaped frame (13), and a second connecting seat (16) is hinged to the right side of the I-shaped frame (13). A first support frame (17) and a second support frame (19) are installed on the second connecting seat (16). A snap-fit ​​groove (37) is opened at one end of the first connecting seat (15), and a clamping buckle (21) is installed at one end of the second support frame (19). The clamping buckle (21) and the first connecting seat (15) are snapped together by the snap-fit ​​groove (37).

3. The hydraulic guide rail type limit lifting platform according to claim 2, characterized in that, Both ends of the first support frame (17) are rotatably connected to a winding reel (18). The inner middle of the first support frame (17) and the inner side of the second support frame (19) are rotatably connected to several pulleys (30). Tension-resistant cables (20) are installed on the winding reel (18) and the pulleys (30).

4. The hydraulic guide rail type limit lifting platform according to claim 2, characterized in that, A drive motor (22) is installed on the first support frame (17) and on one side of each take-up reel (18). The drive motor (22) rotates the take-up reel (18), and the two take-up reels (18) on each first support frame (17) rotate in opposite directions at the same speed. The tensile cable (20) is wound in a serpentine pattern. The pulley (30) on the second support frame (19) is movable, while the pulley (30) on the first support frame (17) is fixed.

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