A lifting device for a hanging basket

Abstract

The present invention relates to the technical field of bridge construction equipment, and specifically to a lifting device for a hanging basket, comprising: a positioning platform, two groups of lifting components, and two groups of protection mechanisms. The two groups of lifting components are symmetrically arranged at the upper end of the positioning platform, including a scissor-type hoist, a winch, a clamp and an angle adjustment mechanism. The angle adjustment mechanism is arranged at the upper end of the positioning platform, the scissor-type hoist is fixedly connected to the lower end of the angle adjustment mechanism, the winch is fixedly connected to the upper end of the angle adjustment mechanism, and the clamp is fixedly connected to the output end of the winch; the two groups of protection mechanisms are respectively connected to the winches, and each group of protection mechanisms includes a rope reel and four fall arresters. This device can be installed on a bridge pier to lift the hanging basket components to be assembled. Compared with traditional cranes and gantries, this device can complete adaptive adjustment of the working environment at a low cost, which is convenient for realizing integrated management of the construction site.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction equipment, and in particular to a lifting device for a hanging basket. Background Art

[0002] As the core load-bearing system in bridge construction, the hanging basket plays a vital role, especially in the construction of continuous rigid frame bridges and cable-stayed bridges.

[0003] However, the current lifting process of the hanging basket parts to be assembled generally relies on cranes and gantries for operation. Although the two meet the functional requirements, they bring many inconveniences in actual operation. The purchase, rental and maintenance costs of cranes are usually high, which increases the economic burden of construction projects. In addition, in harsh environments such as strong winds, low or high temperatures, the performance of the crane may be affected, increasing construction risks. Although the purchase and installation costs of the gantry may be lower than those of the crane, and the maintenance is relatively simple, once the gantry is installed, its position and height are usually fixed, making it difficult to adapt to complex and changing construction environments.

[0004] To this end, we need to design a new lifting device to meet the lifting operations of the hanging basket parts to be assembled during bridge construction. This type of lifting device needs to realize the development of the bridge construction site towards a more standardized and integrated management direction, thereby meeting the modern engineering's pursuit of an efficient and orderly construction environment. Summary of the invention

[0005] Based on this, it is necessary to provide a lifting device for a hanging basket in view of the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] A lifting device for a hanging basket, comprising:

[0008] Positioning platform;

[0009] Two sets of lifting components are symmetrically arranged at the upper end of the positioning platform, including a scissor-type hoist, a winch, a fixture and an angle adjustment mechanism. The angle adjustment mechanism is arranged at the upper end of the positioning platform, the scissor-type hoist is fixedly connected to the lower end of the angle adjustment mechanism, the winch is fixedly connected to the upper end of the angle adjustment mechanism, and the fixture is fixedly connected to the output end of the winch;

[0010] The two sets of protection mechanisms are respectively connected to the two sets of winches. Each set of protection mechanisms includes a rope reel and four fall arresters. The rope reel is arranged on the side of the winch close to the clamp. The rope reel is limited by the two fall arresters. The output end of the rope reel is connected to the upper end of the clamp.

[0011] Furthermore, the lifting assembly also includes a positioning rail preset on the side of the pier, and the positioning rail can fix the positioning platform and the pier.

[0012] Furthermore, the angle adjustment mechanism also includes an adjusting bracket, a dual-axis motor, two adjusting gears and two arc-shaped racks. The adjusting bracket is fixedly connected to the upper end of the scissors-type lift, the dual-axis motor is fixedly connected to the upper end of the adjusting bracket, the two adjusting gears are respectively coaxially fixedly connected to the two output ends of the dual-axis motor, the two arc-shaped racks are respectively slidably connected to the two sides of the adjusting bracket, the two arc-shaped racks are respectively meshed with the two adjusting gears, and the two arc-shaped racks are respectively fixedly connected to the base of the winch.

[0013] Furthermore, the lifting assembly also includes a driving cylinder, a driving rack, a first gear, a second gear, a deflection gear ring and a deflection plate. The driving cylinder is fixedly arranged at the upper end of the positioning platform, the driving rack is fixedly connected to the output end of the driving cylinder, the first gear is meshed with the driving rack and is rotatably connected to the positioning platform, the second gear is coaxially fixed with the first gear, the deflection gear ring is meshed with the second gear and is rotatably connected to the positioning platform, and the deflection plate is fixedly connected to the upper end of the deflection gear ring and is fixedly connected to the scissors-type lift.

[0014] Furthermore, the lifting assembly also includes a plurality of weight blocks, which are stacked in sequence on a side of the deflection plate away from the scissor lift, and the weight block at the bottom is fixedly connected to the deflection plate.

[0015] Furthermore, the protection mechanism also includes a positioning seat and two sliding rollers, the rope winder includes a reel, a rope seat and two protective cables, the positioning seat is fixedly connected to the base of the winch, the two sliding rollers are rotatably arranged at the upper end of the positioning seat through the wheel seat and are symmetrically arranged with respect to the winch, the rope seat is fixedly connected to the base of the winch, the reel is coaxially rotatably connected to the rope seat through a winding spring, one end of the two protective cables are respectively wound around the reels, and the other ends are respectively passed through the corresponding sliding rollers and fixed to the upper end of the clamp.

[0016] Furthermore, the protection mechanism also includes two residual teeth, four reciprocating racks, two reciprocating tooth seats and two locking guide rails. The two residual teeth are respectively fixedly connected to the two sliding rollers coaxially. Two reciprocating racks are arranged on both sides of each residual tooth. The two reciprocating racks can be staggered and meshed with the residual teeth. The two locking guide rails are respectively arranged on the sides of the two sliding rollers. The two reciprocating tooth seats are respectively slidably connected to the two locking guide rails. Each reciprocating tooth seat is fixedly connected to the two corresponding reciprocating racks. Each reciprocating tooth seat is respectively provided with two anti-fall devices pointing in opposite directions. The anti-fall devices are fixedly connected to the reciprocating tooth seat and slidably connected to the corresponding locking guide rails.

[0017] Furthermore, the protection mechanism also includes a pushing cylinder, a pushing platform, a torque multiplier, a switching sleeve, a reset motor and a switching roller. The switching sleeve is fixedly connected to the coaxial line of the reel, the pushing platform is slidably connected to the switching sleeve, the pushing platform is slidably arranged beside the reel, the pushing cylinder is fixedly arranged beside the rope seat and the output end is fixedly connected to the pushing platform, the reset motor is fixedly connected to the upper end of the pushing platform, the input end of the torque multiplier is fixedly connected to the output end of the reset motor, the switching roller is fixedly connected to the output end of the torque multiplier, and the switching roller is connected to the switching sleeve via a clutch key.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] First, the device can be installed on the bridge pier to lift the hanging basket parts to be assembled. Compared with the traditional crane and gantry, the device can complete the adaptive adjustment of the working environment at a low cost, which is convenient for the integrated management of the construction site;

[0020] Second, the device realizes the adjustment of the hanging basket components to be assembled after lifting through the angle adjustment mechanism and the deflection gear ring, so as to facilitate the installation of the hanging basket components to be assembled after lifting. After the hanging basket components to be assembled are lifted, the operator avoids multiple adjustments to the hanging basket components to be assembled when installing the hanging basket components to be assembled;

[0021] Thirdly: the device uses a protective mechanism to prevent the lifting of the hanging basket parts to be assembled from falling. Compared with the traditional anti-fall limiter, the device uses residual teeth and reciprocating racks in conjunction with the anti-fall device to limit the stroke, thereby reducing the footprint of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front view of the structure of the present invention (installed on a bridge pier);

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 3 yes Figure 2 A magnified view of the structure at center;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the present invention from another angle;

[0026] Figure 5 yes Figure 4 A magnified view of the structure at B in the middle;

[0027] Figure 6 yes Figure 4 A magnified view of the structure at C in the middle;

[0028] Figure 7 yes Figure 4 A magnified view of the structure at D in the middle;

[0029] Figure 8 yes Figure 4 Enlarged view of the structure at E in the middle;

[0030] Fig. 9 It is a partial structural schematic diagram of the present invention Figure 1 ;

[0031] Fig.10 It is a partial structural schematic diagram of the present invention Figure 2 ;

[0032] Fig.11 It is a partial structural schematic diagram of the present invention Figure 3 .

[0033] The numbers in the figure are:

[0034] 1. Bridge pier; 2. Positioning platform; 3. Lifting assembly; 4. Scissor lift; 5. Positioning guide rail; 6. Winch; 7. Clamp; 8. Angle adjustment mechanism; 9. Adjustment bracket; 10. Arc rack; 11. Double-axis motor; 12. Adjustment gear; 13. Driving cylinder; 14. Driving rack; 15. First gear; 16. Second gear; 17. Deflection gear ring; 18. Deflection plate; 19. Load block; 20. Protection mechanism; 21. Sliding roller; 22. Positioning Seat; 23. Rope reel; 24. Rope seat; 25. Reel; 26. Protective cable; 27. Residual teeth; 28. Reciprocating rack; 29. ​​Reciprocating gear seat; 30. Locking guide rail; 31. Fall arrester; 311. Mounting seat; 312. Guide wheel; 313. Rack; 314. Gear set; 315. Tension spring; 316. Eccentric wheel; 32. Push cylinder; 33. Push platform; 34. Torque multiplier; 35. Adapter sleeve; 36. Reset motor; 37. Adapter roller. DETAILED DESCRIPTION

[0035] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Among them, the specific structure of the fall arrester 31 is shown in Fig.10 and Fig.11 The anti-fall device 31 is of the prior art. The tension spring 315 is used to maintain the stability of the anti-fall device 31. The mounting seat 311 of the anti-fall device 31 is fixedly connected to the reciprocating gear seat 29. The two sets of guide wheels 312 in the anti-fall device 31 are rollingly connected to the locking guide rail 30. When the speed of the lifted hanging basket component changes suddenly, the rack 313 drives the two eccentric wheels 316 to rotate through the gear set 314 and clamps the locking guide rail 30 (refer to Figure 6 and Fig. 9, wherein the locking guide rail 30 is a combined structure, and when the reciprocating gear seat 29 moves, it will drive the anti-fall device 31 to move through the mounting seat 311 of the anti-fall device 31, and the two eccentric wheels 316 of the anti-fall device 31 are arranged on both sides of the locking guide rail 30, and the two sets of guide wheels 312 are slidably connected with the locking guide rail 30. When the anti-fall device 31 is working, the two eccentric wheels 316 rotate to clamp the locking guide rail 30). Specifically, the anti-fall device 31 can select the existing SLT20-H9-S series anti-fall safety device.

[0037] refer to Figures 1 to 9 , a lifting device for a hanging basket, comprising:

[0038] Positioning platform 2;

[0039] Two groups of lifting components 3 are symmetrically arranged at the upper end of the positioning platform 2, including a scissor lift 4, a hoist 6, a fixture 7 and an angle adjustment mechanism 8. The angle adjustment mechanism 8 is arranged at the upper end of the positioning platform 2, the scissor lift 4 is fixedly connected to the lower end of the angle adjustment mechanism 8, the hoist 6 is fixedly connected to the upper end of the angle adjustment mechanism 8, and the fixture 7 is fixedly connected to the steel strand output end of the hoist 6 (such as Figure 8 As shown), the clamp 7 can be selected from an existing structure that can connect the hanging basket parts to be assembled.

[0040] The two groups of protection mechanisms 20 are respectively connected to the two winches 6. Each group of protection mechanisms 20 includes a rope reel 23 and four fall arresters 31. The rope reel 23 is arranged on the side of the winch 6 close to the clamp 7. The rope reel 23 is limited by the two fall arresters 31. The output end of the protection cable 26 of the rope reel 23 is connected to the upper end of the clamp 7.

[0041] When the device is in operation, the operator first installs the positioning platform 2 on the pier 1, and then starts the winch 6. The winch 6 will move the hanging basket components to be assembled upward through the clamp 7. After the winch 6 moves the hanging basket components to be assembled above the pier 1, the hanging basket components to be assembled can be adjusted in position under the action of the lifting assembly 3. When the upper end face of the pier 1 is tilted, in order to prevent the steel strands of the winch 6 and the pier 1 from being unevenly stressed due to an excessively large staggered angle, the angle adjustment mechanism 8 can change the angle of the winch 6, and the scissor lift 4 can facilitate the migration of the hanging basket components to be assembled above the pier 1.

[0042] During the lifting process, the protection mechanism 20 can protect the basket components to be assembled through the rope reel 23 and the corresponding fall arrester 31, to prevent the basket components to be assembled from falling after the steel strands of the winch 6 break. Specifically, after the fall arrester 31 is triggered, the rope reel 23 can continue to lift the basket components to be assembled, to prevent the basket components to be assembled from hanging in the air after a failure of the winch 6.

[0043] In order to install the positioning platform 2, the following features are also specifically set:

[0044] The lifting assembly 3 also includes a positioning rail 5 preset on the side of the pier 1, and the positioning rail 5 can fix the positioning platform 2 and the pier 1. Before installing the device, the operator should preset the positioning rail 5 on the side wall of the pier 1, referring to Figure 1 It can be seen that the positioning rail 5 can fasten the positioning platform 2, ensuring that the device can be adjustably connected to the upper end of the pier 1, thereby speeding up the installation progress of the device.

[0045] In order to supplement the specific structure of the angle adjustment mechanism 8, the following features are also specifically provided:

[0046] The angle adjustment mechanism 8 also includes an adjustment bracket 9, a dual-axis motor 11, two adjustment gears 12 and two arc-shaped racks 10. The adjustment bracket 9 is fixedly connected to the upper end of the scissor lift 4, the dual-axis motor 11 is fixedly connected to the upper end of the adjustment bracket 9, the two adjustment gears 12 are respectively fixedly connected to the two output ends of the dual-axis motor 11 coaxially, the two arc-shaped racks 10 are respectively slidably connected to the two sides of the adjustment bracket 9, the two arc-shaped racks 10 are respectively meshed with the two adjustment gears 12, and the two arc-shaped racks 10 are respectively fixedly connected to the base of the winch 6. When the inclination angle of the winch 6 needs to be adjusted, the dual-axis motor 11 is started to drive the arc-shaped rack 10 to deflect through the adjustment gear 12, and the arc-shaped rack 10 deflects and drives the winch 6 fixedly connected thereto to deflect.

[0047] In order to further supplement the specific structure of the lifting component 3, the following features are also specifically set:

[0048] The lifting assembly 3 also includes a driving cylinder 13, a driving rack 14, a first gear 15, a second gear 16, a deflection ring gear 17 and a deflection plate 18. The driving cylinder 13 is fixedly arranged at the upper end of the positioning platform 2. The driving rack 14 is fixedly connected to the output end of the driving cylinder 13. The first gear 15 is meshed with the driving rack 14 and is rotatably connected to the positioning platform 2. The second gear 16 is coaxially fixed with the first gear 15. The deflection ring gear 17 is meshed with the second gear 16 and is rotatably connected to the positioning platform 2. The deflection plate 18 is fixedly connected to the upper end of the deflection ring gear 17 and is fixedly connected to the scissors lift 4. After the winch 6 drives the basket parts to be assembled to move above the bridge pier 1, in order to change the position of the basket parts to be assembled, the driving cylinder 13 is started and drives the first gear 15 to rotate through the driving rack 14. The first gear 15 drives the deflection ring gear 17 to rotate through the second gear 16. After the deflection ring gear 17 rotates, it drives the scissors lift 4 to rotate through the deflection plate 18. At this time, the horizontal position of the corresponding basket parts to be assembled moves, which makes it easier for the operator to disassemble and install the basket parts to be assembled.

[0049] In order to prevent the device from tipping over due to the overweight of the basket parts to be assembled, the following features are also provided:

[0050] The lifting assembly 3 further includes a plurality of weight blocks 19, which are stacked in sequence on the side of the deflection plate 18 away from the scissor lift 4, and the weight blocks 19 at the bottom are fixedly connected to the deflection plate 18. During the lifting process of the hanging basket components to be assembled, the plurality of weight blocks 19 can balance the weight of the hanging basket components to be assembled to prevent the device from tilting.

[0051] In order to supplement the specific structure of the rope reel 23, the following features are also specifically provided:

[0052] The protection mechanism 20 also includes a positioning seat 22 and two sliding rollers 21. The rope reel 23 includes a reel 25, a rope seat 24 and two protection cables 26. The positioning seat 22 is fixedly connected to the base of the winch 6. The two sliding rollers 21 are rotatably arranged on the upper end of the positioning seat 22 through the wheel seat and are arranged symmetrically with respect to the winch 6. The rope seat 24 is fixedly connected to the base of the winch 6. The reel 25 is coaxially rotatably connected to the rope seat 24 through a coil spring. The coil spring is arranged so that the reel 25 can drive the protection cable 26 to be wound around the outside of the reel 25 when the fixture 7 drives the hanging basket component to move upward. One end of the two protection cables 26 is respectively wound and connected to the reel 25, and the other end passes through the corresponding sliding rollers 21 and is fixedly connected to the upper end of the fixture 7. When the clamp 7 drives the hanging basket parts to be assembled to move, the clamp 7 will be limited by two protection cables 26. At this time, the protection cables 26 will pull the reel 25 to rotate. At this time, the protection cable 26 wrapped around the outside of the reel 25 will adaptively change its length as the clamp 7 is lifted. In this process, the reel 25 and the rope seat 24 are connected by a winding spring, which is an existing technology, so it will not be described in detail.

[0053] In order to protect the hanging basket parts to be assembled from falling when the steel strand of the hoist 6 breaks, the following features are also specifically provided:

[0054] The protection mechanism 20 also includes two residual teeth 27, four reciprocating racks 28, two reciprocating tooth seats 29 and two locking guide rails 30. The two residual teeth 27 are respectively fixedly connected to the two sliding rollers 21 coaxially. Two reciprocating racks 28 are arranged on both sides of each residual tooth 27. The two reciprocating racks 28 can be staggered and meshed with the residual teeth 27. The two locking guide rails 30 are respectively arranged on the sides of the two sliding rollers 21. The two reciprocating tooth seats 29 are respectively slidably connected to the two locking guide rails 30. Each reciprocating tooth seat 29 is respectively fixedly connected to the two corresponding reciprocating racks 28. Each reciprocating tooth seat 29 is respectively provided with two anti-fall devices 31 pointing in opposite directions. The anti-fall devices 31 are fixedly connected to the reciprocating tooth seat 29 and are slidably connected to the corresponding locking guide rails 30. When the sliding roller 21 rotates, in order to reduce the space occupied by the device and avoid excessive anti-fall stroke due to long-distance lifting, the residual tooth 27 will mesh with the two reciprocating racks 28 in turn when it rotates, and the corresponding reciprocating tooth seat 29 will reciprocate. When the reciprocating tooth seat 29 moves, it will reciprocate on the locking guide rail 30 through two anti-fall devices 31. When the speed of the hanging basket parts to be assembled changes suddenly, the anti-fall device 31 in the corresponding moving direction will clamp the locking guide rail 30 to prevent the hanging basket parts to be assembled from falling.

[0055] It should be noted that the fall arrester 31 used in this device is a one-way fall arrester, that is, it can only respond to sudden force in one direction. Therefore, two fall arresters 31 pointing in opposite directions are used to limit the protection cable 26. At the same time, the one-way fall arrester 31 can facilitate the subsequent recovery of the protection cable 26, avoiding the hanging basket parts to be assembled from being suspended in the air and unable to be processed.

[0056] In order to recycle the parts of the hanging basket to be assembled after fall protection, the following features are also set:

[0057] The protection mechanism 20 also includes a pushing cylinder 32, a pushing platform 33, a torque multiplier 34, a transfer sleeve 35, a reset motor 36 and a transfer roller 37. The transfer sleeve 35 is coaxially fixedly connected to the reel 25, the pushing platform 33 is slidably connected to the transfer sleeve 35, the pushing platform 33 is slidably arranged beside the reel 25, the pushing cylinder 32 is fixedly arranged beside the rope seat 24 and the output end is fixedly connected to the pushing platform 33, the reset motor 36 is fixedly connected to the upper end of the pushing platform 33, the input end of the torque multiplier 34 is fixedly connected to the output end of the reset motor 36, the transfer roller 37 is fixedly connected to the output end of the torque multiplier 34, and the transfer roller 37 is connected to the transfer sleeve 35 through a clutch key. After the anti-fall device 31 clamps the locking guide rail 30, in order to recycle the hanging basket components to be assembled without affecting the current installation of the hanging basket components to be assembled, the pushing cylinder 32 is started to drive the pushing platform 33 to move. After the pushing platform 33 moves, it will drive the reset motor 36 to move. The reset motor 36 will drive the transfer roller 37 to move through the torque multiplier 34 until the transfer roller 37 is fixedly connected through the clutch and the transfer sleeve 35. When the transfer roller 37 and the transfer sleeve 35 are fixedly connected, the reset motor 36 will drive the transfer roller 37 to rotate through the torque multiplier 34, and then drive the hanging basket parts to be assembled to continue to move upward through the protective cable 26 (after the transfer roller 37 and the transfer sleeve 35 are fixedly connected, the operator needs to unlock the anti-fall device 31 first to prevent the reset motor 36 from driving the transfer roller 37 to rotate, and the protective cable 26 needs to overcome the clamping force of the anti-fall device 31 to drive the clamp 7 to move), so as to facilitate the recovery of the hanging basket parts to be assembled.

[0058] The working principle of this device is that when the device is in operation, the operator first installs the positioning platform 2 on the pier 1, and then the operator starts the winch 6. The winch 6 will move the hanging basket components to be assembled upward through the clamp 7. After the winch 6 moves the hanging basket components to be assembled above the pier 1, the driving cylinder 13 is started to adjust the position of the hanging basket components to be assembled. When the upper end face of the pier 1 is tilted, in order to prevent the steel strands of the winch 6 and the pier 1 from being unevenly stressed due to an excessively large staggered angle, the dual-axis motor 11 can change the angle of the winch 6, and the scissor lift 4 can facilitate the migration of the hanging basket components to be assembled above the pier 1.

[0059] During the lifting process, the protective cable 26 cooperates with the corresponding anti-fall device 31 to protect the hanging basket parts to be assembled, and prevents the hanging basket parts to be assembled from falling after the steel strand breaks. At the same time, after the anti-fall device 31 is triggered, the push cylinder 32 is started to fix the adapter roller 37 and the adapter sleeve 35, and then the reset motor 36 is started to continue to lift the hanging basket parts to be assembled, preventing the hanging basket parts to be assembled from hanging in the air after the winch 6 fails.

Claims

1. A lifting device for a hanging basket, characterized in that: include: Positioning platform (2); Two groups of lifting components (3) are symmetrically arranged at the upper end of the positioning platform (2), comprising a scissor-type hoist (4), a winch (6), a clamp (7) and an angle adjustment mechanism (8), wherein the angle adjustment mechanism (8) is arranged at the upper end of the positioning platform (2), the scissor-type hoist (4) is fixedly connected to the lower end of the angle adjustment mechanism (8), the winch (6) is fixedly connected to the upper end of the angle adjustment mechanism (8), and the clamp (7) is fixedly connected to the output end of the winch (6); Two sets of protection mechanisms (20) are respectively connected to the two sets of hoisting machines (6), each set of protection mechanisms (20) comprises a rope reel (23) and four fall arresters (31), the rope reel (23) is arranged on a side of the hoisting machine (6) close to the clamp (7), the rope reel (23) is limited by the two fall arresters (31), and the output end of the rope reel (23) is connected to the upper end of the clamp (7); The lifting assembly (3) further comprises a positioning guide rail (5) preset on the side of the bridge pier (1), wherein the positioning guide rail (5) is capable of fixedly connecting the positioning platform (2) and the bridge pier (1); The angle adjustment mechanism (8) further comprises an adjustment bracket (9), a dual-axis motor (11), two adjustment gears (12) and two arc-shaped racks (10); the adjustment bracket (9) is fixedly connected to the upper end of the scissor lift (4); the dual-axis motor (11) is fixedly connected to the upper end of the adjustment bracket (9); the two adjustment gears (12) are respectively fixedly connected to the two output ends of the dual-axis motor (11) coaxially; the two arc-shaped racks (10) are respectively slidably connected to the two sides of the adjustment bracket (9); the two arc-shaped racks (10) are respectively meshed with the two adjustment gears (12); and the two arc-shaped racks (10) are respectively fixedly connected to the base of the hoist (6); The lifting assembly (3) further comprises a driving cylinder (13), a driving rack (14), a first gear (15), a second gear (16), a deflection gear ring (17) and a deflection plate (18), wherein the driving cylinder (13) is fixedly arranged at the upper end of the positioning platform (2), the driving rack (14) is fixedly connected to the output end of the driving cylinder (13), the first gear (15) is meshed with the driving rack (14) and is rotationally connected to the positioning platform (2), the second gear (16) is coaxially fixedly connected to the first gear (15), the deflection gear ring (17) is meshed with the second gear (16) and is rotationally connected to the positioning platform (2), and the deflection plate (18) is fixedly connected to the upper end of the deflection gear ring (17) and is fixedly connected to the scissor lift (4); The protection mechanism (20) further comprises a positioning seat (22) and two sliding rollers (21), the rope reel (23) comprises a reel (25), a rope seat (24) and two protection cables (26), the positioning seat (22) is fixedly connected to the base of the hoist (6), the two sliding rollers (21) are rotatably arranged on the upper end of the positioning seat (22) through a wheel seat and are arranged symmetrically with respect to the hoist (6), the rope seat (24) is fixedly connected to the base of the hoist (6), the reel (25) is rotatably connected to the rope seat (24) coaxially through a coil spring, one end of the two protection cables (26) is respectively wound around the reel (25), and the other end passes through the corresponding sliding roller (21) and is fixedly connected to the upper end of the clamp (7); The protection mechanism (20) further comprises two residual teeth (27), four reciprocating racks (28), two reciprocating tooth seats (29) and two locking guide rails (30). The two residual teeth (27) are respectively fixedly connected to the two sliding rollers (21) coaxially. Two reciprocating racks (28) are arranged on both sides of each residual tooth (27). The two reciprocating racks (28) can be staggered and meshed with the residual teeth (27). The two locking guide rails (30) are respectively arranged on the sides of the two sliding rollers (21). The two reciprocating tooth seats (29) are respectively slidably connected to the two locking guide rails (30). Each reciprocating tooth seat (29) is respectively fixedly connected to the two corresponding reciprocating racks (28). Each reciprocating tooth seat (29) is respectively provided with two anti-fall devices (31) pointing in opposite directions. The anti-fall devices (31) are fixedly connected to the reciprocating tooth seat (29) and are slidably connected to the corresponding locking guide rails (30).

2. The lifting device of a hanging basket according to claim 1, characterized in that: The lifting assembly (3) further comprises a plurality of weight blocks (19), wherein the plurality of weight blocks (19) are stacked in sequence on a side of the deflection plate (18) away from the scissor lift (4), and the weight block (19) at the bottom is fixedly connected to the deflection plate (18).

3. The lifting device of a hanging basket according to claim 1, characterized in that: The protection mechanism (20) further comprises a push cylinder (32), a push platform (33), a torque multiplier (34), a transfer sleeve (35), a reset motor (36) and a transfer roller (37); the transfer sleeve (35) is coaxially fixedly connected to the reel (25); the push platform (33) is slidably connected to the transfer sleeve (35); the push platform (33) is slidably arranged beside the reel (25); the push cylinder (32) is fixedly arranged beside the rope seat (24) and its output end is fixedly connected to the push platform (33); the reset motor (36) is fixedly connected to the upper end of the push platform (33); the input end of the torque multiplier (34) is fixedly connected to the output end of the reset motor (36); the transfer roller (37) is fixedly connected to the output end of the torque multiplier (34); and the transfer roller (37) is connected to the transfer sleeve (35) via a clutch key.

Images