Telescopic ladder stand of lifting tower

Abstract

The utility model discloses a telescopic ladder stand of a lifting tower, which comprises a ladder stand, a lifting device is arranged on one side of the ladder stand, the lifting device comprises a telescopic sleeve, a fixed sleeve, a fixed plate, a hydraulic cylinder and a hydraulic rod, the telescopic sleeve is movably arranged in the fixed sleeve, the hydraulic cylinder is arranged in the fixed sleeve, the fixed plate is arranged on the outer sides of the fixed sleeve and the telescopic sleeve, and the hydraulic rod is arranged on the fixed plate. The bottom end of the hydraulic rod is connected with the output end of the hydraulic cylinder, a rotating device is installed on one side of the fixing sleeve, a clamping device is arranged on the outer side of the fixing plate and comprises a clamping sleeve, a matching sleeve, a connecting block, a guide groove, a guide rod, a spring, a return stroke block, a clamping rod, a reducing groove, a clamping block, a clamping groove and a rotating shaft, the guide groove is formed in the connecting block, and the guide rod is connected to one side of the return stroke block. The spring is arranged on the outer side of the guide rod in a sleeving mode, the variable-diameter groove is formed in the inner side of the matching sleeve, the clamping block is installed in the variable-diameter groove through the rotating shaft, and the groove is formed in the outer side of the clamping rod. According to the ladder stand, the adaptability, safety and operation convenience of the ladder stand are improved, and the mounting and dismounting processes of the ladder stand are simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of devices for construction machinery, and more particularly to a telescopic ladder for a lifting tower. Background Art

[0002] In the current field of telescopic tower ladders, despite continuous technological advancements, there are still some significant limitations and shortcomings. These problems not only affect the practicality and efficiency of the ladders, but may also have a negative impact on the safety and work efficiency of users.

[0003] First of all, the ladder structure in the existing technology is generally simple, and most of them adopt a fixed design. Although this design is relatively simple in manufacturing and installation, it seriously limits the flexibility and adaptability of the ladder. The fixed structure means that the height of the ladder cannot be easily changed once it is determined, which brings many inconveniences in actual use. For example, in working environments at different heights, a ladder with a fixed height may be too high or too low. Too high will increase the climbing difficulty and safety risks of the user, while too low will not reach the required working height. In addition, in complex working environments, such as between different floors or in irregular building structures, ladders with fixed heights are often difficult to adapt, which not only reduces work efficiency, but may also force workers to take unsafe methods to make up for the lack of height, such as standing at the top of the ladder or using unstable temporary supports. These practices greatly increase safety hazards.

[0004] Secondly, the ladders in the prior art are not only of fixed height, but also usually have preset angles that cannot be adjusted according to actual needs. This rigid design severely limits the scope of use of the ladder and the flexibility of the climbing direction. In actual work, especially in complex working environments, it is often necessary to approach the work target from different angles. Ladders with fixed angles are inadequate in such situations. For example, in narrow spaces or environments with obstacles, ladders that cannot be adjusted in angle may not be placed correctly, resulting in the inability to reach the desired location. This limitation not only reduces work efficiency, but may also force workers to adopt dangerous postures or positions to complete tasks, thereby increasing the risk of work-related accidents.

[0005] Finally, ladders in the prior art usually have major problems in installation and disassembly. The designs of many ladders are too complicated or bulky, resulting in cumbersome and time-consuming installation and disassembly processes. The complicated installation process may require professional tools or collaboration of multiple people, which not only increases labor costs, but may also cause safety problems due to improper operation. In addition, the cumbersome disassembly process increases the difficulty of equipment maintenance. When the ladder needs to be repaired or parts need to be replaced, the complicated disassembly process may extend the downtime and affect the overall work efficiency. In some emergency situations, such as when rapid evacuation or adjustment of equipment position is required, the complicated disassembly process may cause unnecessary delays and even endanger personnel safety. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the problems existing in the prior art, the utility model provides a telescopic ladder for a lifting tower to solve the technical problems mentioned in the background technology.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic ladder for a lifting tower, comprising a ladder, characterized in that: a lifting device is installed on one side of the ladder, the lifting device comprises a telescopic sleeve, a fixed sleeve, a fixed plate, a hydraulic cylinder and a hydraulic rod, the telescopic sleeve is movably installed in the fixed sleeve, the telescopic sleeve is provided with multiple levels, and each level of the telescopic sleeve is movably installed in the lower level telescopic sleeve, the hydraulic cylinder is detachably installed in the fixed sleeve, the fixed plates are respectively installed on the outside of the fixed sleeve and the telescopic sleeve, the bottom end of the hydraulic rod is connected to the output end of the hydraulic cylinder, the top end of the hydraulic rod is connected to the inner top end of the uppermost telescopic sleeve, a rotating device is installed on one side of the fixed sleeve, and the fixed The outer side of the fixed plate is provided with a clamping device, and the clamping device includes a clamping sleeve, a matching sleeve, a connecting block, a guide groove, a guide rod, a spring, a return block, a clamping rod, a reducing groove, a clamping block, a clamping slot and a rotating shaft. The clamping sleeve is detachably mounted on the outer side of the clamping rod, and the matching sleeve is mounted on the outer side of the clamping sleeve. The connecting block is fixedly connected to the outer side of the clamping sleeve, the guide groove is opened on the connecting block, the guide rod is fixedly connected to one side of the return block, the guide groove is adapted to the guide rod, the spring is sleeved on the outer side of the guide rod, the return block is fixedly connected to one side of the matching sleeve, the reducing groove is opened on the inner side of the matching sleeve, the clamping block is movably installed in the reducing groove by the rotating shaft, and the clamping slot is opened on the outer side of the clamping rod.

[0010] The utility model is further configured such that a slide rail is fixedly provided on one side of the ladder, a slide groove is provided on the other side of the ladder, the slide groove of the upper ladder is adapted to the slide rail of the lower ladder, the ladder is provided with multiple levels, and the outer width of the upper ladder is equal to the inner width of the lower ladder.

[0011] The utility model is further configured such that a push spring is movably provided in the diameter-changing groove, the push spring is connected to one side of the clamping block, and the other end of the push spring is in contact connection with the inner wall of the diameter-changing groove.

[0012] The utility model is further configured such that a rubber strip is connected to the outer side of the matching sleeve.

[0013] The utility model is further configured as follows: the rotating device includes a motor, a driving wheel, a driven wheel, a rotating frame and a rotating shaft; the rotating frame is connected to the top end of the rotating shaft; the fixed sleeve is movably installed on the inner side of the rotating frame; the driving wheel is engaged with the driven wheel; the driven wheel is fixedly connected to the outer side of the rotating shaft; the motor is detachably mounted on one side of the rotating shaft; and the setting of the rotating device can flexibly adjust the lateral angle of the ladder.

[0014] The utility model is further configured such that a cylinder is detachably provided on the inner side of the rotating frame, a piston rod is connected to the output end of the cylinder, a connecting seat is provided on one side of the fixed sleeve, the piston rod is movably connected to the fixed sleeve through the connecting seat, and one end of the cylinder is movably connected to the rotating frame. The above components can flexibly adjust the longitudinal angle of the ladder and can fold the ladder.

[0015] The present invention is further configured such that a reducer is detachably provided on one side of the rotating shaft, the input end of the reducer is connected to the output end of the motor, and the output end of the reducer is connected to the driving wheel.

[0016] The utility model is further configured such that a mobile vehicle is provided below the rotating shaft, and the rotating shaft is rotatably mounted on the mobile vehicle, and tires are detachably provided below the mobile vehicle, and the cooperation between the mobile vehicle and the tires enables the equipment to be moved to different work locations.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the utility model provides a telescopic ladder for a lifting tower, which has the following beneficial effects:

[0019] 1. The innovative design of the lifting device cleverly solves the limitations of the fixed height of traditional ladders. It consists of components such as a telescopic sleeve, a fixed sleeve, a fixed plate, a hydraulic cylinder and a hydraulic rod. The design of the multi-stage telescopic sleeve allows flexible adjustment of the ladder height, while the combination of the hydraulic cylinder and the hydraulic rod provides powerful and precise lifting power. This design enables the ladder to adapt to working environments at different heights, greatly improving its applicability and work efficiency. The operator can easily adjust the ladder height according to actual needs without having to replace ladders of different specifications, saving time and resources and improving safety. The multi-stage telescopic structure not only ensures the flexibility of height adjustment, but also ensures the compactness in the retracted state, which is convenient for transportation and storage.

[0020] 2. The design of the rotating device cleverly solves the problem of fixed angle of traditional ladders. It includes components such as a motor, a driving wheel, a driven wheel, a rotating frame and a rotating shaft. This design allows the ladder to rotate 360 ​​degrees in the horizontal plane, greatly increasing its flexibility. The design of the rotating frame not only supports the entire rotating system, but also provides a foundation for the installation of the cylinder. The combination of the cylinder and piston rod realizes the adjustment of the ladder's inclination angle, further increasing its adaptability. This dual adjustment capability of rotation and inclination angle enables the ladder to adapt to various complex working environments, such as narrow spaces, irregular surfaces or areas with obstacles. The operator can easily adjust the direction and angle of the ladder without frequently moving the entire equipment, which not only improves work efficiency but also reduces physical exertion. The design of the mobile cart and tires further enhances the maneuverability of the entire system, allowing the equipment to be easily moved between different work areas. This all-round adjustment capability not only improves work efficiency, but also significantly increases operational safety because the operator can always maintain the optimal working posture and position.

[0021] 3. The design of the clamping device cleverly solves the problem of cumbersome installation and disassembly of traditional ladders. It is mainly composed of a clamping sleeve, a matching sleeve, a connecting block, a guide groove, a guide rod, a spring, a return block, a clamping rod, a reducing groove, a clamping block, a clamping slot and a rotating shaft. This complex and sophisticated mechanism design realizes the rapid installation and disassembly of the ladder. Through a simple rotation operation, the clamping block can be disengaged from the clamping slot to realize the rapid disassembly of the ladder. This design not only greatly reduces the time of installation and disassembly, but also reduces the complexity of the operation. The operator can quickly complete the installation and disassembly of the ladder without professional tools or complicated operating steps. This is especially important in emergency situations. The quick disassembly function also facilitates the daily maintenance and replacement of the ladder, reduces downtime and improves overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a telescopic ladder for a lifting tower in the present utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0024] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at B in the middle;

[0025] Figure 4 It is a schematic cross-sectional view of the fixed sleeve and the telescopic sleeve in the present invention;

[0026] Figure 5 This is a structural diagram of the clamping device part of the utility model;

[0027] Figure 6 This is a schematic cross-sectional view of the clamping device of the present invention;

[0028] Figure 7 This is a schematic cross-sectional view of the second angle of the clamping device in the present invention.

[0029] In the figure: 1. Ladder; 2. Telescopic sleeve; 3. Fixed sleeve; 4. Fixed plate; 5. Hydraulic cylinder; 6. Hydraulic rod; 7. Snap sleeve; 8. Matching sleeve; 9. Connecting block; 10. Guide groove; 11. Guide rod; 12. Spring; 13. Return block; 14. Snap rod; 15. Variable diameter groove; 16. Block; 17. Snap slot; 18. Rotating shaft; 19. Slide rail; 20. Slide slot; 21. Push spring; 22. Rubber strip; 23. Motor; 24. Driving wheel; 25. Driven wheel; 26. Rotating frame; 27. Rotating shaft; 28. Cylinder; 29. ​​Piston rod; 30. Connecting seat; 31. Reducer; 32. Mobile vehicle; 33. Tire. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0032] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0033] See also Figure 1-Figure 7A telescopic ladder for a lifting tower includes a ladder 1, which is characterized in that: a lifting device is installed on one side of the ladder 1, and the lifting device includes a telescopic sleeve 2, a fixed sleeve 3, a fixed plate 4, a hydraulic cylinder 5 and a hydraulic rod 6. The telescopic sleeve 2 is movably installed in the fixed sleeve 3. The telescopic sleeve 2 is provided with multiple levels, and each level of the telescopic sleeve 2 is movably installed in the lower level telescopic sleeve 2. The hydraulic cylinder 5 is detachably installed in the fixed sleeve 3, and the fixed plate 4 is respectively installed on the outside of the fixed sleeve 3 and the telescopic sleeve 2. The bottom end of the hydraulic rod 6 is connected to the output end of the hydraulic cylinder 5, and the top end of the hydraulic rod 6 is connected to the top end of the inner side of the uppermost telescopic sleeve 2. A rotating device is installed on one side of the fixed sleeve 3, and a clamping device is provided on the outside of the fixed plate 4. The clamping device includes a clamping sleeve 7 and a matching sleeve 8, connecting block 9, guide groove 10, guide rod 11, spring 12, return block 13, clamping rod 14, reducing groove 15, clamping block 16, clamping groove 17 and rotating shaft 18, the clamping sleeve 7 is detachably sleeved on the outside of the clamping rod 14, the matching sleeve 8 is sleeved on the outside of the clamping sleeve 7, the connecting block 9 is fixedly connected to the outside of the clamping sleeve 7, the guide groove 10 is opened on the connecting block 9, the guide rod 11 is fixedly connected to one side of the return block 13, the guide groove 10 is adapted to the guide rod 11, the spring 12 is sleeved on the outside of the guide rod 11, the return block 13 is fixedly connected to one side of the matching sleeve 8, the reducing groove 15 is opened on the inner side of the matching sleeve 8, the clamping block 16 is movably installed in the reducing groove 15 through the rotating shaft 18, and the clamping groove 17 is opened on the outside of the clamping rod 14.

[0034] A slide rail 19 is fixed on one side of the ladder 1, and a slide groove 20 is opened on the other side of the ladder 1. The slide groove 20 of the upper ladder 1 is adapted to the lower slide rail 19. The ladder 1 is provided with multiple steps, and the outer width of the upper ladder 1 is equal to the inner width of the lower ladder 1.

[0035] A push spring 21 is movably provided in the diameter-changing groove 15 . The push spring 21 is connected to one side of the clamping block 16 , and the other end of the push spring 21 is in contact connection with the inner wall of the diameter-changing groove 15 .

[0036] A rubber strip 22 is connected to the outer side of the matching sleeve 8 .

[0037] In this embodiment, when the device needs to be used, the device is first moved to the designated location, and then the fixed sleeve 3, the telescopic sleeve 2 and the ladder 1 are erected, and then the hydraulic cylinder 5 installed inside the fixed sleeve 3 is opened, and then the hydraulic cylinder 5 drives the hydraulic rod 6 connected to the output end to move, and then the hydraulic rod 6 pushes the uppermost telescopic sleeve 2 to move, and then the telescopic sleeve 2 will drive the corresponding ladder 1 to rise through the fixed plate 4 set on the outside, so that the ladder 1 will slide along the slide rail 19 and the slide groove 20, and when the upper level rises to a suitable height, the hydraulic cylinder 5 installed in the fixed sleeve 3 can be closed. When the ladder 1 needs to be maintained or replaced, the corresponding matching sleeve 8 is first rotated, and the matching sleeve 8 will drive one side The set return block 13 moves, and then the return block 13 will drive the guide rod 11 connected on one side to slide along the guide groove 10 opened on the connecting block 9, and the return block 13 will cooperate with the connecting block 9 to squeeze the spring 12 sleeved on the outside of the guide rod 11, and at the same time the matching sleeve 8 will drive the reducing groove 15 to rotate, and then the reducing groove 15 will drive the card block 16 to move through the rotating shaft 18, and then the card block 16 will be squeezed by the side wall of the clamping sleeve 7, so that the card block 16 rotates along the rotating shaft, and then the card block 16 will squeeze the push spring 21 set on one side. When the spring 12 is squeezed to the limit by the return block 13 and the connecting block 9, the card block 16 will disengage from the card slot 17, and the card block 16 will rotate around The shaft 18 rotates into the reducing groove 15, and the clamping block 16 squeezes the push spring 21 to the limit, and then pulls the clamping sleeve 7 and the clamping rod 14 to both sides respectively, so that the clamping sleeve 7 and the clamping rod 14 are removed from the outside of the ladder 1, and then the ladder 1 is removed, and then the ladder 1 can be maintained and replaced. When the ladder 1 is maintained and replaced, the ladder 1 is installed on the inside of the corresponding fixed plate 4, and then the clamping rod 14 passes through the fixed plate 4 and the ladder 1 from one side of the fixed plate 4, and then the clamping sleeve 7 is fitted from the other side of the other fixed plate 4 to the outside of the clamping rod. After the clamping sleeve 7 is completely fitted to the outside of the clamping rod 14, the matching sleeve 8 is released, and the spring 12 pushes the return block 13 to reset, and then the return block 13 will drive the guide rod 11 to reset along the guide groove 10, and then the return block 13 will drive the matching sleeve 8 to rotate and reset, and then the matching sleeve 8 will drive the reducing groove 15 opened on the inside to rotate and reset, and then the blocking block 16 will no longer be limited by the side wall of the clamping sleeve 7, and then the push spring 21 will push the blocking block 16 to rotate and reset along the rotating shaft 18, and then the blocking block 16 will gradually turn out from the reducing groove 15, and then the blocking block 16 will gradually engage in the blocking groove 17. When the spring 12 is fully reset, the reducing groove 15 is just fully reset, and then the blocking block 16 will be fully engaged in the blocking groove 17, so that the clamping sleeve 7 and the clamping rod 14 are completely connected together, thereby realizing rapid maintenance and replacement of the ladder 1.

[0038] See also Figure 1-Figure 4As an implementation method of the rotating device: the rotating device includes a motor 23, a driving wheel 24, a driven wheel 25, a rotating frame 26 and a rotating shaft 27, the rotating frame 26 is connected to the top of the rotating shaft 27, the fixed sleeve 3 is movably installed on the inner side of the rotating frame 26, the driving wheel 24 is engaged with the driven wheel 25, the driven wheel 25 is fixedly connected to the outer side of the rotating shaft 27, and the motor 23 is detachably installed on one side of the rotating shaft 27.

[0039] A cylinder 28 is detachably provided on the inside of the rotating frame 26, and a piston rod 29 is connected to the output end of the cylinder 28. A connecting seat 30 is provided on one side of the fixed sleeve 3. The piston rod 29 is movably connected to the fixed sleeve 3 through the connecting seat 30, and one end of the cylinder 28 is movably connected to the rotating frame 26.

[0040] A reducer 31 is detachably provided on one side of the rotating shaft 27 . The input end of the reducer 31 is connected to the output end of the motor 23 , and the output end of the reducer 31 is connected to the driving wheel 24 .

[0041] A moving vehicle 32 is provided below the rotating shaft 27 , and the rotating shaft 27 is rotatably mounted on the moving vehicle 32 . A tire 33 is detachably provided below the moving vehicle 32 .

[0042] More specifically, when it is necessary to adjust the climbing angle and position of the ladder 1, the mobile vehicle 32 is first driven to move by the external drive assembly, and then the mobile vehicle 32 is moved by the tire 33. When the mobile vehicle 32 moves to the appropriate position, the external drive assembly is turned off, and then the cylinder 28 is turned on. The cylinder 28 drives the connecting seat 30 to move through the piston rod 29 connected to the output end. Since one end of the piston rod 29 is movably connected through the connecting seat 30, and one end of the cylinder 28 is movably connected to the rotating frame 26, the piston rod 29 drives the fixed sleeve 3 along the rotating frame 2 through the connecting seat 30. 6 rotates, so that the fixed sleeve 3 and the telescopic sleeve 2 drive the ladder 1 to stand up through the fixed plate 4, and then turn on the motor 23. After the deceleration effect of the reducer 31, the motor 23 drives the driving wheel 24 to rotate, and then the driving wheel 24 drives the driven wheel 25 to rotate, and then the driven wheel 25 drives the rotating shaft 27 to rotate, and then the rotating shaft 27 drives the rotating frame 26 to rotate, and then the rotating frame 26 drives the fixed sleeve 3 and the telescopic sleeve 2 to rotate, and then the fixed sleeve 3 and the telescopic sleeve 2 drive the ladder 1 to rotate through the fixed plate 4. When the ladder 1 moves to a suitable angle, turn off the motor 23.

[0043] In summary, the overall equipment is in use or operation: when the equipment needs to be used, first move the equipment to the designated location, then erect the fixed sleeve 3, the telescopic sleeve 2 and the ladder 1, then open the hydraulic cylinder 5 installed inside the fixed sleeve 3, and then the hydraulic cylinder 5 drives the hydraulic rod 6 connected to the output end to move, and then the hydraulic rod 6 pushes the uppermost telescopic sleeve 2 to move, and then the telescopic sleeve 2 will drive the corresponding ladder 1 to rise through the fixed plate 4 set on the outside, so that the ladder 1 will slide along the slide rail 19 and the slide groove 20, and when the upper ladder rises to a suitable height, close the hydraulic cylinder 5 installed in the fixed sleeve 3. When the ladder 1 needs to be maintained or replaced, first rotate the corresponding matching sleeve 8, and the matching sleeve 8 will be turned on. The matching sleeve 8 will drive the return block 13 set on one side to move, and then the return block 13 will drive the guide rod 11 connected on one side to slide along the guide groove 10 opened on the connecting block 9, and the return block 13 will cooperate with the connecting block 9 to squeeze the spring 12 set on the outside of the guide rod 11, and at the same time the matching sleeve 8 will drive the reducing groove 15 to rotate, and then the reducing groove 15 will drive the clamping block 16 to move through the rotating shaft 18, and then the clamping block 16 will be squeezed by the side wall of the clamping sleeve 7, so that the clamping block 16 rotates along the rotating shaft, and then the clamping block 16 will squeeze the push spring 21 set on one side, and when the spring 12 is squeezed to the limit by the return block 13 and the connecting block 9, the clamping block 16 will disengage from the clamping groove 17, and the clamping block 1 6 will rotate around the rotating shaft 18 and enter the reducing groove 15, and the clamping block 16 will squeeze the push spring 21 to the limit, and then the clamping sleeve 7 and the clamping rod 14 will be pulled to both sides respectively, so that the clamping sleeve 7 and the clamping rod 14 are removed from the outside of the ladder 1, and then the ladder 1 is removed, and then the ladder 1 can be maintained and replaced. When the ladder 1 is maintained and replaced, the ladder 1 is installed on the inside of the corresponding fixed plate 4, and then the clamping rod 14 passes through the fixed plate 4 and the ladder 1 from one side of the fixed plate 4, and then the clamping sleeve 7 is fitted from the other side of the other fixed plate 4 to the outside of the clamping rod. After the clamping sleeve 7 is completely fitted to the outside of the clamping rod 14, the matching sleeve 8 is released, and the spring 12 pushes the return block 13 to reset, and then The return block 13 will drive the guide rod 11 to reset along the guide groove 10, and then the return block 13 will drive the matching sleeve 8 to rotate and reset, and then the matching sleeve 8 will drive the reducing groove 15 opened on the inner side to rotate and reset, and then the blocking block 16 will no longer be limited by the side wall of the clamping sleeve 7, and then the push spring 21 will push the blocking block 16 to rotate and reset along the rotating shaft 18, and then the blocking block 16 will gradually turn out from the reducing groove 15, and then the blocking block 16 will gradually engage in the clamping groove 17. When the spring 12 is fully reset, the reducing groove 15 is just fully reset, and then the blocking block 16 will be fully engaged in the clamping groove 17, so that the clamping sleeve 7 and the clamping rod 14 are completely connected together, thereby realizing rapid maintenance and replacement of the ladder 1.

[0044] When the climbing angle and position of the ladder 1 need to be adjusted, the mobile vehicle 32 is first driven to move by the external drive assembly, and then the mobile vehicle 32 is moved by the tire 33. When the mobile vehicle 32 moves to the appropriate position, the external drive assembly is turned off, and then the cylinder 28 is turned on. The cylinder 28 drives the connecting seat 30 to move through the piston rod 29 connected to the output end. Since one end of the piston rod 29 is movably connected through the connecting seat 30, and one end of the cylinder 28 is movably connected to the rotating frame 26, the piston rod 29 drives the fixed sleeve 3 to rotate along the rotating frame 26 through the connecting seat 30. The fixed sleeve 3 and the telescopic sleeve 2 drive the ladder 1 to stand upright through the fixed plate 4, and then the motor 23 is turned on. After the deceleration effect of the reducer 31, the motor 23 drives the driving wheel 24 to rotate, and then the driving wheel 24 drives the driven wheel 25 to rotate, and then the driven wheel 25 drives the rotating shaft 27 to rotate, and then the rotating shaft 27 drives the rotating frame 26 to rotate, and then the rotating frame 26 drives the fixed sleeve 3 and the telescopic sleeve 2 to rotate, and then the fixed sleeve 3 and the telescopic sleeve 2 will drive the ladder 1 to rotate through the fixed plate 4. When the ladder 1 moves to a suitable angle, the motor 23 can be turned off.

[0045] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A telescopic ladder for a lifting tower, comprising a ladder (1), characterized by: A lifting device is installed on one side of the ladder (1), and the lifting device includes a telescopic sleeve (2), a fixed sleeve (3), a fixed plate (4), a hydraulic cylinder (5) and a hydraulic rod (6). The telescopic sleeve (2) is movably installed in the fixed sleeve (3), the hydraulic cylinder (5) is installed in the fixed sleeve (3), the fixed plate (4) is installed outside the fixed sleeve (3) and the telescopic sleeve (2), the bottom end of the hydraulic rod (6) is connected to the output end of the hydraulic cylinder (5), a rotating device is installed on one side of the fixed sleeve (3), and a clamping device is provided on the outside of the fixed plate (4), and the clamping device includes a clamping sleeve (7), a matching sleeve (8), a connecting block (9), a guide The invention relates to a groove (10), a guide rod (11), a spring (12), a return block (13), a clamping rod (14), a diameter-reducing groove (15), a clamping block (16), a clamping groove (17) and a rotating shaft (18); the matching sleeve (8) is sleeved on the outside of the clamping sleeve (7); the guide groove (10) is opened on the connecting block (9); the guide rod (11) is connected to one side of the return block (13); the spring (12) is sleeved on the outside of the guide rod (11); the diameter-reducing groove (15) is opened on the inside of the matching sleeve (8); the clamping block (16) is installed in the diameter-reducing groove (15) through the rotating shaft (18); and the groove (17) is opened on the outside of the clamping rod (14).

2. The telescopic ladder for a lifting tower according to claim 1, characterized in that: A slide rail (19) is fixedly provided on one side of the ladder (1), and a slide groove (20) is provided on the other side of the ladder (1). The slide groove (20) of the upper ladder (1) is adapted to the lower slide rail (19). The ladder (1) is provided with multiple steps, and the outer width of the upper ladder (1) is equal to the inner width of the lower ladder (1).

3. The telescopic ladder for a lifting tower according to claim 1, characterized in that: A push spring (21) is movably provided in the diameter-changing groove (15), the push spring (21) is connected to one side of the clamping block (16), and the other end of the push spring (21) is in contact connection with the inner wall of the diameter-changing groove (15).

4. The telescopic ladder for a lifting tower according to claim 3, characterized in that: The outer side of the matching sleeve (8) is connected with a rubber strip (22).

5. A telescopic ladder for a lifting tower according to any one of claims 1 to 4, characterized in that: The rotating device comprises a motor (23), a driving wheel (24), a driven wheel (25), a rotating frame (26) and a rotating shaft (27), wherein the rotating frame (26) is connected to the top of the rotating shaft (27), the fixed sleeve (3) is movably mounted on the inner side of the rotating frame (26), the driving wheel (24) is engaged with the driven wheel (25), the driven wheel (25) is fixedly connected to the outer side of the rotating shaft (27), and the motor (23) is detachably mounted on one side of the rotating shaft (27).

6. The telescopic ladder for a lifting tower according to claim 5, characterized in that: A cylinder (28) is detachably provided on the inner side of the rotating frame (26); a piston rod (29) is connected to the output end of the cylinder (28); a connecting seat (30) is provided on one side of the fixed sleeve (3); the piston rod (29) is movably connected to the fixed sleeve (3) through the connecting seat (30); and one end of the cylinder (28) is movably connected to the rotating frame (26).

7. The telescopic ladder for a lifting tower according to claim 6, characterized in that: A reducer (31) is detachably provided on one side of the rotating shaft (27), the input end of the reducer (31) is connected to the output end of the motor (23), and the output end of the reducer (31) is connected to the driving wheel (24).

8. The telescopic ladder for a lifting tower according to claim 7, characterized in that: A moving vehicle (32) is provided below the rotating shaft (27), and the rotating shaft (27) is rotatably mounted on the moving vehicle (32). A tire (33) is detachably provided below the moving vehicle (32).

Images