Self-propelled garden lift platform

Abstract

The application relates to a self-propelled garden lifting operation platform, which comprises a vehicle body, a plurality of lifting assemblies arranged above the vehicle body, the plurality of lifting assemblies being stacked in the vertical direction, the lifting assembly comprising a lifting seat, a supporting seat and a lifting lead screw, a guide rod being slidably connected in the bottom lifting seat, the guide rod penetrating through the bottom lifting seat and being fixedly connected with the vehicle body, two adjacent lifting seats being slidably connected, the top lifting seat being connected with a hanging basket, the supporting seat being fixedly connected with the bottom of the lifting seat, the lifting lead screw being threadedly connected in the lifting seat, the bottom of the lifting lead screw penetrating through the lifting seat and extending to the outside, the bottom lifting lead screw being rotatably connected with the vehicle body, a driving motor being installed on the vehicle body, the remaining lifting lead screws being rotatably connected with the supporting seats below the lifting lead screws, a linkage assembly being arranged between two adjacent lifting lead screws, and a supporting assembly being arranged above the vehicle body, the application has the effect of improving the operation safety of workers.

Description

Technical Field

[0001] This application relates to the technical field of landscaping machinery and equipment, and in particular to a self-propelled landscaping lifting platform. Background Technology

[0002] Aerial work platforms are essential manned equipment for garden tree care. They are typically fixed to a lifting device, and workers control the height of the platform by operating the lifting device. When caring for large trees in a garden, workers stand on the platform and are lifted to a height. During this process, the operation of the equipment plays a decisive role in the personal safety of the workers. Therefore, ensuring the stable operation of the equipment is very important.

[0003] Currently, most existing lifting equipment is scissor-type. These lifting devices have a relatively large lifting height, requiring numerous scissor frames between the top operating platform and the bottom support. When the vertical scissor frames are under force, due to the large distance between the operating platform and the bottom support, even a slight tilt will cause the pressure from the weight of the bottom support on the ground plus the weight of the top operating platform and the top scissor frames to act on a scissor frame connection point between the bottom support and the top operating platform. This can damage the mechanical mechanism at the scissor frame connection point, causing the lifting equipment to tilt continuously until a dangerous situation occurs, posing a risk of hazardous operation for workers. Summary of the Invention

[0004] To improve the safety of workers, this application provides a self-propelled garden lifting platform.

[0005] The self-propelled garden lifting platform provided in this application adopts the following technical solution: A self-propelled garden lifting platform includes a vehicle body. Multiple lifting components are arranged on the side of the vehicle body facing away from the ground, stacked vertically. Each lifting component includes a lifting seat, a support seat, and a lifting screw. A guide rod is slidably connected vertically inside the bottom lifting seat, passing through the bottom lifting seat and fixedly connected to the vehicle body. Adjacent lifting seats are slidably connected vertically. A basket is connected to the top lifting seat. The support seat is fixedly connected to the bottom of the lifting seat. The lifting screw is threaded inside the lifting seat, with its bottom passing through the lifting seat and extending outwards. The bottom lifting screw is rotatably connected to the vehicle body. A drive motor is installed on the vehicle body to rotate the bottom lifting screw. The remaining lifting screws are rotatably connected to the support seat below them. A linkage component is arranged between adjacent lifting screws to synchronize their rotation. A support component is provided on the side of the vehicle body facing away from the ground to support the support seat.

[0006] Using the above technical solution, the drive motor starts to rotate the bottom lifting screw, and the linkage component makes all the lifting screws rotate synchronously, so that all the lifting seats rise or fall synchronously, thereby controlling the height of the suspended platform; during the entire operation, one side of the bottom support seat is supported by the lifting seat, and the other side of the bottom support seat is supported by the support component, so that the entire device remains stable and the safety of the workers is improved.

[0007] Optionally, the vehicle body has an installation cavity, and the drive motor is installed in the installation cavity. The drive motor is a dual-axis motor. One output shaft of the drive motor is fixedly connected to the lifting screw at the bottom, and the other output shaft of the drive motor is fixedly connected to the driving bevel gear. The support assembly includes a movable seat and a support block. A sliding cavity is opened on the surface of the vehicle body facing the lifting assembly. The movable seat is located on one side of the lifting assembly. The bottom of the movable seat extends into the sliding cavity and the two are slidably adapted. The vehicle body is rotatably connected to a traveling screw in the sliding cavity. The traveling screw passes through the movable seat and the two are threadedly connected. One end of the traveling screw extends into the installation cavity. The end of the traveling screw extending into the installation cavity is fixedly connected to a driven bevel gear that meshes with the driving bevel gear. A guide rod is fixedly connected to the vehicle body in the sliding cavity. The guide rod passes through the movable seat and the two are slidably adapted. The support block is fixedly connected to the side of the movable seat facing the lifting assembly. An inclined surface is opened on the side of the support block away from the movable seat, and the inclined surface of the support block abuts against the support seat at the bottom.

[0008] Using the above technical solution, after the drive motor starts, it causes the travel screw to rotate through the active and driven bevel gears, thereby causing the moving seat to slide along the guide rod. When the support seat rises, the support block moves towards the bottom support seat; when the support seat falls, the support block moves away from the bottom support seat, thus ensuring that the support seat supports one side of the bottom support seat throughout the entire operation.

[0009] Optionally, the bottom support seat has a roller ball-hinged to one end near the support block, and the surface of the support block facing the support seat has a groove adapted to the rolling of the roller.

[0010] By adopting the above technical solution, the sliding friction between the support base and the support block is replaced by rolling friction, which reduces the friction between the support base and the support block, thereby achieving the effect of smooth movement of the support block.

[0011] Optionally, the linkage component includes a linkage sleeve and a linkage belt. The linkage sleeve is sleeved on the lifting screw and is rotatably connected to the lifting seat. A linkage block is fixed on the inner wall of the linkage sleeve. A linkage groove that slides and adapts to the linkage block is opened on the outer wall of the lifting screw. A linkage wheel is fixedly connected to the linkage sleeve, and the linkage belt passes around two adjacent linkage wheels.

[0012] Using the above technical solution, the rotation of the lifting screw causes the linkage sleeve to rotate via the linkage block and linkage groove. The linkage sleeve, through the linkage wheel and linkage belt, causes adjacent lifting screws to rotate synchronously. Optionally, a guide block is fixedly connected to the side wall of the lifting seat away from the support seat, and a guide groove is opened on the side wall of the lifting seat facing the support seat. The guide block is set in the guide groove, and a limit rod is fixedly connected to the lifting seat at the guide groove. The limit rod passes through the guide block and the two are slidably adapted to each other.

[0013] Using the above technical solution, when the lifting seat moves, the guide block slides along the guide rod, thereby guiding and limiting the lifting seat through the guide block.

[0014] Optionally, a fixed rod is fixedly connected to one side of the guide block, and a limiting gear is fixedly connected to the fixed rod. A limiting rack adapted to the limiting gear is provided on one side of the limiting gear. A sliding rod is fixedly connected to the side of the limiting rack away from the limiting gear. The end of the sliding rod away from the limiting rack passes through the lifting seat and extends to the outside. The sliding rod is slidably adapted to the lifting seat. A reset plate is fixedly connected to the end of the sliding rod extending out of the lifting seat. A reset spring is fixedly connected between the reset plate and the lifting seat. A first telescopic cylinder is installed on the outer wall of the lifting seat. A pressing block for pressing the sliding rod is fixedly connected to the piston rod end of the first telescopic cylinder.

[0015] Using the above technical solution, after the lifting seat moves to a suitable height, the first telescopic cylinder squeezes the slide rod through the squeezing block, thereby causing the two limiting racks in the same guide groove to mesh with the limiting gear, thus locking the limiting gear, and then locking the lifting seat through the guide block, further improving the safety of the workers.

[0016] Optionally, a ratchet is fixedly connected to the linkage sleeve, and a pawl adapted to the ratchet is provided on one side of the lifting screw. The pawl is rotatably connected to the lifting seat. A torsion spring is installed at the connection between the pawl and the lifting seat. A trigger block is provided on one side of the pawl. The trigger block is used to squeeze the pawl. A trigger rod is fixedly connected between the squeezing block and the trigger block. A telescopic rod is fixedly connected between the trigger block and the lifting seat. A telescopic spring is fixedly connected between the trigger block and the lifting seat.

[0017] Using the above technical solution, after the lifting seat moves to a suitable height, the first telescopic cylinder causes the trigger rod to move the trigger block away from the pawl through the trigger block. At this time, the torsion spring releases its elastic force to make the pawl and ratchet engage, thereby locking the lifting screw, reducing the load on the drive motor, and further improving working safety.

[0018] Optionally, a second telescopic cylinder is installed on the side wall of the vehicle body away from the support seat. A support plate is fixedly connected to the piston rod end of the second telescopic cylinder, and a ground claw is connected to the side wall of the support plate away from the second telescopic cylinder. Using the above technical solution, after the vehicle body moves to the required position, the second telescopic cylinder inserts the ground claw into the ground through the support plate, thereby improving the stability of the entire device and thus improving work safety.

[0019] Optionally, both sides of the support plate are fixedly connected to support legs, and the ground claws are fixedly connected to the surface of the support legs away from the support plate. An alarm and a pressure sensor are installed on the support legs.

[0020] Using the above technical solution, the outriggers are brought into contact with the ground by the support plate. The pressure sensor can detect the pressure on the outriggers. When the pressure on a certain outrigger exceeds the set value, it indicates that the entire device is tilting. At this time, the alarm will sound, thus alerting the staff when the device is tilting.

[0021] Optionally, a pad is fixedly connected to the side wall of the support facing the vehicle body.

[0022] By adopting the above technical solution, when the lifting seat is fully lowered, the pad block prevents the linkage component from being squeezed, thereby protecting the linkage component.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The drive motor starts, causing the bottom lifting screw to rotate. The bottom lifting screw rotates the adjacent lifting screws through the linkage component, thereby making all the lifting screws rotate synchronously. This causes the lifting screws to move the lifting seat up or down, which in turn causes the support seat to move up or down. At the same time, the drive motor rotates the traveling screw through the driving bevel gear and the driven bevel gear, causing the moving seat to move the support block closer to or away from the support seat. This allows the support block to support the support seat, maintaining the stability of the device and improving the safety of the workers.

[0024] 2. After the vehicle body is moved to the desired position, the second telescopic cylinder is activated to insert the ground pawl into the ground. Then, the drive motor is started to move the lifting platform to the desired position. After the lifting platform comes to a stop, two limit racks engage with one limit rack simultaneously, thereby locking the lifting platform through the guide block. Simultaneously, the lifting screw is locked by the ratchet and pawl. Throughout the operation, if the pressure on any outrigger is too high, an alarm will sound to alert the operator. This structure further improves the safety of the operator. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of a self-propelled garden lifting platform according to Embodiment 1 of this application; Figure 2 This is a flowchart illustrating the operation of the pressure sensor and alarm in Embodiment 1 of this application; Figure 3This is a partial schematic diagram illustrating the structure of the lifting component in Embodiment 1 of this application; Figure 4 yes Figure 3 A magnified view of part A in the middle; Figure 5 This is a partial cross-sectional view of Embodiment 1 of this application, illustrating the movement mode of the movable seat; Figure 6 yes Figure 5 A magnified view of part B in the middle section; Figure 7 This is a partial cross-sectional view of Embodiment 1 of this application, used to illustrate the structure of the linkage component and the position of the linkage block; Figure 8 This is a partial schematic diagram in Embodiment 1 of this application, illustrating the locking method of the lifting seat; Figure 9 This is a partial schematic diagram of Embodiment 1 of this application to illustrate the position of the roller; Figure 10 This is a partial sectional view of Embodiment 1 of this application, illustrating the installation method of the suspended platform.

[0026] In the diagram, 1. Vehicle body; 11. Guide rod; 12. Drive motor; 121. Drive bevel gear; 13. Mounting cavity; 14. Sliding cavity; 15. Traveling screw; 151. Driven bevel gear; 16. Guide rod; 17. Second telescopic cylinder; 2. Lifting assembly; 21. Lifting seat; 211. Linkage groove; 212. Guide groove; 213. Limiting rod; 214. Sliding rod; 2141. Limiting rack; 2142. Reset plate; 2413. Reset spring; 215. First telescopic cylinder; 2151. Pressing block; 2152. Trigger rod; 216. Pawl; 217. Torsion spring; 218. Mounting block; 2181. Mounting hole; 22. Support base; 221. Pad block; 222. Roller; 23. Lifting screw; 3. Suspended basket; 31. Mounting groove; 32. Third telescopic cylinder; 321. Limit seat; 3211. Mounting rod; 4. Linkage assembly; 41. Linkage sleeve; 411. Linkage block; 412. Linkage wheel; 413. Ratchet; 42. Linkage belt; 5. Support assembly; 51. Moving seat; 52. Support block; 521. Groove; 6. Guide block; 61. Fixed rod; 611. Limit gear; 7. Trigger block; 71. Telescopic rod; 72. Telescopic spring; 8. Support plate; 81. Outrigger; 811. Ground claw; 9. Safety belt; 91. Connecting rope. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0028] This application discloses a self-propelled garden lifting platform.

[0029] Example 1 refer to Figure 1 A self-propelled garden lifting platform includes a vehicle body 1. In this embodiment, the vehicle body 1 is wheeled. A basket 3 is provided on the side of the vehicle body 1 away from the ground. Multiple lifting components 2 are arranged vertically between the basket 3 and the vehicle body 1. In this embodiment, three lifting components 2 are provided, and the three lifting components 2 are stacked on top of each other. A support component 5 is provided on one side of the three lifting components 2.

[0030] After driving the vehicle body 1 to a suitable position, the staff raise the basket 3 to a suitable height using the lifting component 2; during the raising process and when the basket 3 is stationary, the support component 5 maintains the stability of the basket 3.

[0031] refer to Figure 1 A support plate 8 is horizontally arranged on the side of the vehicle body 1 facing the ground. A second telescopic cylinder 17 is fixedly connected to the bottom wall of the vehicle body 1 facing the support plate. There are two second telescopic cylinders 17, which are arranged on both sides of the vehicle body. The piston rod end of the second telescopic cylinder 17 is fixedly connected to the support plate 8. A ground claw 811 is fixedly connected to the side wall of the support plate 8 away from the second telescopic cylinder 17.

[0032] refer to Figure 1 The support plate 8 is fixedly connected to the side away from the vehicle body 1 with four support legs 81. The four support legs 81 are fixed at the four corners of the support plate 8 respectively. Multiple ground claws 811 are fixedly connected to the support legs 81 away from the surface of the support plate 8.

[0033] refer to Figure 1 and Figure 2 The outrigger 81 is equipped with a pressure sensor and an alarm. The pressure sensor measures the load pressure borne by the outrigger 81 and outputs a pressure signal. The output of the pressure sensor is connected to a comparator, which receives the pressure signal, compares the weight signal with a reference value, and outputs an execution signal. The output of the comparator is connected to the alarm, which responds to the execution signal. The execution signal includes a start signal and a stop signal. When the pressure signal is greater than or equal to the reference value, the comparator sends a start signal. When the alarm receives the start signal, it starts and alarms. When the pressure signal is less than the reference value, the comparator sends a stop signal. When the alarm receives the stop signal, it stops alarming.

[0034] After driving the vehicle body 1 to a suitable position, the operator activates the second telescopic cylinder 17. The piston rod of the second telescopic cylinder 17 extends, thereby driving the support plate 8 towards the ground until the ground claw 811 is inserted into the ground, and the outrigger 81 is pressed firmly against the ground. Throughout the operation, the operator monitors whether the alarm sounds. If the alarm sounds, the operation is immediately stopped and the device is adjusted.

[0035] refer to Figure 1 and Figure 3 The lifting assembly 2 includes a lifting seat 21 and a support seat 22. The lifting seat 21 is arranged vertically. A guide rod 11 is slidably connected to the bottom of the lifting seat 21 in the vertical direction. There are two guide rods 11, which are arranged opposite each other on both sides of the bottom lifting seat 21. The guide rod 11 passes through the bottom wall of the bottom lifting seat 21 and is fixedly connected to the vehicle body 1. The support seat 22 is fixedly connected to the bottom of the lifting seat 21, and the support seat 22 and the lifting seat 21 form an L-shape. A pad block 221 is fixedly connected to the bottom wall of the support seat 22. The length of the pad block 221 connected to each support seat 22 is not the same, and the length of the pad block 221 decreases from bottom to top.

[0036] refer to Figure 4 , Figure 5 and Figure 6 The vehicle body 1 has an installation cavity 13. The lifting assembly 2 also includes a lifting screw 23. The lifting screw 23 is threadedly connected to the inside of the lifting seat 21. The bottom of the lifting screw 23 passes through the lifting seat 21 and extends into the installation cavity 13. The lifting screw 23 at the bottom is rotatably connected to the vehicle body 1. The other lifting screws 23 are rotatably connected to the support seat 22 below them. A linkage assembly 4 is provided between two adjacent lifting screws 23.

[0037] refer to Figure 4 and Figure 7 The linkage component 4 includes a linkage sleeve 41 and a linkage belt 42. The linkage sleeve 41 is sleeved on the lifting screw 23 and is rotatably connected to the lifting seat 21. A linkage block 411 is fixedly provided on the inner wall of the linkage sleeve 41. A linkage groove 211 that is slidably adapted to the linkage block 411 is opened on the outer wall of the lifting screw 23 in the vertical direction. A linkage wheel 412 is fixedly connected on the linkage sleeve 41. The linkage belt 42 passes around two adjacent linkage wheels 412.

[0038] Workers climb onto the top support seat 22 using the pads 221, and then enter the suspended basket 3. The bottom lifting screw 23 rotates, driving its own linkage sleeve 41 via its linkage block 411. The linkage sleeve 41, through the linkage wheel 412 and the linkage belt 42, drives the adjacent lifting screws 23 to rotate, thus all the lifting screws 23 rotate synchronously. This causes the lifting screws 23 to raise the lifting seat 21 until the suspended basket 3 is raised to the appropriate height. During the ascent of the lifting seat 21, it drives the linkage sleeve 41 to rise, causing the linkage sleeve 41 to slide along the linkage groove 211.

[0039] refer to Figure 1 and Figure 8Two adjacent lifting seats 21 are slidably connected in the vertical direction. A guide block 6 is fixedly connected to the side wall of the lifting seat 21 away from the support seat 22. A fixed rod 61 is fixedly connected to one side of the guide block 6. A limit gear 611 is fixedly connected to the fixed rod 61. A guide groove 212 is opened in the vertical direction on the side wall of the lifting seat 21 facing the support seat 22. The guide block 6 is set in the guide groove 212. A limit rod 213 is fixedly connected to the lifting seat 21 at the guide groove 212. The limit rod 213 passes through the guide block 6 and the two are slidably adapted to each other.

[0040] refer to Figure 8 Both sides of the lifting seat 21 are slidably connected with slide rods 214 in the horizontal direction. One end of the slide rod 214 extends into the guide groove 212. The end of the slide rod 214 extending into the guide groove 212 is fixedly connected with a limiting rack 2141 that is adapted to the limiting gear 611. The other end of the slide rod 214 extends to the outside of the lifting seat 21. A reset plate 2142 is sleeved on the end of the slide rod 214 near its own pressing surface and the two are fixedly connected. A reset spring 2413 is fixedly connected between the reset plate 2142 and the lifting seat 21. A reset spring 2413 is fixedly connected between the reset plate 2142 and the lifting seat 21. The reset spring 2413 is sleeved on the slide rod 214.

[0041] refer to Figure 4 A ratchet 413 is fitted on the linkage sleeve 41 and the two are fixedly connected. Both sides of the ratchet 413 are provided with pawls 216 that are adapted to it. The pawls 216 are rotatably connected to the lifting seat 21. A torsion spring 217 is installed at the connection between the pawls 216 and the lifting seat 21. A trigger block 7 for pressing the pawls 216 is provided between the two pawls 216. A telescopic rod 71 is fixedly connected between the trigger block 7 and the lifting seat 21. The telescopic rod 71 has a multi-stage telescopic structure. The telescopic rod 71 includes an inner rod and an outer rod. A telescopic spring 72 is fitted on the telescopic rod 71. The two ends of the telescopic spring 72 are fixedly connected to the trigger block 7 and the lifting seat 21, respectively.

[0042] refer to Figure 4 and Figure 8 Both sides of the lifting seat 21 are equipped with first telescopic cylinders 215. The piston rod end of the first telescopic cylinder 215 is fixedly connected to a pressing block 2151 for pressing the slide bar 214. The pressing block 2151 has an inclined surface on the side facing the lifting seat 21. The side of the pressing block 2151 away from the lifting seat 21 is fixedly connected to the trigger block 7 with a trigger rod 2152.

[0043] After the lifting seat 21 is raised to the appropriate position, the first telescopic cylinder 215 is activated to press the slide rod 214 through the inclined surface of the pressing block 2151. The slide rod 214 is pressed and drives the limiting rack 2141 to mesh with the limiting gear 611, thereby locking the limiting gear 611. Thus, the lifting seat 21 is locked through the guide block 6. At the same time, the first telescopic cylinder 215 causes the trigger rod 2152 to move the trigger block 7 away from the pawl 216 through the pressing block 2151. At this time, the torsion spring 217 releases its elastic force to move the pawl 216 closer to the ratchet 413 until the pawl 216 and the ratchet 413 are engaged, thereby locking the lifting screw 23.

[0044] refer to Figure 6 The vehicle body 1 has a drive motor 12 installed in the mounting cavity 13. The drive motor 12 is a dual-shaft motor. One of the output shafts of the drive motor 12 is fixedly connected to the lifting screw 23 that extends into the mounting cavity 13. The other output shaft of the drive motor 12 is fixedly connected to the active bevel gear 121.

[0045] refer to Figure 5 and Figure 6 The vehicle body 1 has a sliding cavity 14 on one side of the mounting cavity 13. The sliding cavity 14 penetrates the surface of the vehicle body 1 facing the lifting component 2. The support component 5 includes a movable seat 51, which is vertically disposed on one side of the vehicle body 1. The bottom of the movable seat 51 extends into the sliding cavity 14 and is slidably adapted to the sliding cavity 14. The vehicle body 1 is rotatably connected to a travel screw 15 in the sliding cavity 14. The travel screw 15 passes through the movable seat 51 and the two are threadedly connected. One end of the travel screw 15 extends into the mounting cavity 13. The end of the travel screw 15 extending into the mounting cavity 13 is fixedly connected to a driven bevel gear 151 that meshes with the driving bevel gear 121. The vehicle body 1 is fixedly connected to a guide rod 16 in the horizontal direction in the sliding cavity 14. The guide rod 16 passes through the movable seat 51 and the two are slidably adapted to each other.

[0046] refer to Figure 5 and Figure 9 The support component 5 also includes a support block 52. The support block 52 has a triangular cross section. There are two support blocks 52. The two support blocks 52 are fixedly connected to the two sides of the movable seat 51 respectively. The inclined surface of the support block 52 abuts against the bottom support seat 22. A roller groove 521 is provided on the inclined surface of the support block 52. The bottom support seat 22 is ball-jointed to the side of the support block 52 with a roller 222 that is adapted to the rolling of the roller groove 521.

[0047] When the drive motor 12 starts, it drives the lifting screw 23 at the bottom to rotate. Simultaneously, the drive motor 12 drives the driving bevel gear 121 to rotate, which in turn drives the driven bevel gear 151 to rotate. The driven bevel gear 151 then drives the traveling screw 15 to rotate, causing the moving seat 51 to slide along the guide rod 16. This causes the moving seat 51 to move the support block 52 towards the bottom support seat 22 or away from it. During this movement, the roller 222 rolls along the groove 521.

[0048] refer to Figure 1 and Figure 10 The suspended platform 3 has an installation groove 31 on the side away from the support assembly 5. The lifting seat 21 at the top is fixed with an installation block 218 that is compatible with the installation groove 31. A third telescopic cylinder 32 is installed on the side of the suspended platform 3 facing the installation block 218. The piston rod end of the third telescopic cylinder 32 is fixedly connected to a limit seat 321. Multiple installation rods 3211 are fixedly connected to the surface of the limit seat 321 away from the third telescopic cylinder 32. The surface of the installation block 218 facing the limit seat 321 has an installation hole 2181 that is compatible with the installation rods 3211.

[0049] When the alarm sounds, the staff activates the third telescopic cylinder 32. The third telescopic cylinder 32 moves the limit seat 321 away from the mounting seat until the mounting rod 3211 is pulled out of the mounting hole 2181. At this time, the suspended basket 3 and the staff inside the suspended basket 3 can be transported to the ground by hoisting, and then the stability of the device can be adjusted in time.

[0050] refer to Figure 1 The top of the suspended platform 3 is connected to a safety belt 9 via a steel wire belt. The safety belt 9 can be worn by the worker. A connecting rope 91 is fixedly connected to the safety belt 9, which is used to connect to the tree. When working, the worker wears the safety belt 9 and then connects the connecting rope 91 to the tree by tying a knot.

[0051] The implementation principle of a self-propelled garden lifting platform according to Embodiment 1 of this application is as follows: After the worker drives the vehicle body 1 to the required position, the second telescopic cylinder 17 is activated. The second telescopic cylinder 17 presses the outrigger 81 against the ground through the support plate 8, at which time the ground claw 811 is inserted into the ground. Then, after the worker enters the basket 3, the drive motor 12 is activated. At this time, the lifting seat 21 transports the worker to the required height through the basket 3. At the same time, the support block 52 moves towards the support seat 22, and the support block 52 supports the support seat 22. After the moving seat 51 moves to the required height, the first telescopic cylinder 215 presses the slide rod 214 to lock the limit gear 611 through the limit rack 2141. At the same time, the first telescopic cylinder 215 presses the trigger block 7 through the trigger rod 2152, thereby engaging the ratchet 413 and the pawl 216, thus locking the lifting seat 21 and the lifting screw 23. Through the above structure, the safety of the worker is improved.

[0052] Example 2 The difference between Example 2 and Example 1 is that the lifting component 2 is an aluminum alloy lifting machine, which is hydraulically driven.

[0053] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-propelled garden lifting platform, comprising a vehicle body (1), characterized in that: Multiple lifting components (2) are provided on the side of the vehicle body (1) away from the ground. The multiple lifting components (2) are stacked vertically on each other. Each lifting component (2) includes a lifting seat (21), a support seat (22), and a lifting screw (23). A guide rod (11) is slidably connected inside the bottom lifting seat (21). The guide rod (11) passes through the bottom lifting seat (21) and is fixedly connected to the vehicle body (1). Two adjacent lifting seats (21) are slidably connected vertically. A basket (3) is connected to the top lifting seat (21). The support seat (22) is fixedly connected to the bottom of the lifting seat (21). The lifting screw (23) is threaded inside the lifting seat (21). The bottom of the lifting screw (23) passes through the lifting seat (21) and extends to the outside. The lifting screw (23) at the bottom is rotatably connected to the vehicle body (1). A drive motor (12) for driving the lifting screw (23) at the bottom is installed on the vehicle body (1). The other lifting screws (23) are rotatably connected to the support seat (22) below them. A linkage component (4) is provided between two adjacent lifting screws (23) to make them rotate synchronously. A support component (5) for supporting the support seat (22) is provided on the side of the vehicle body (1) away from the ground. An installation cavity (13) is opened in the vehicle body (1), and the drive motor (12) is installed in the installation cavity (13). The drive motor (12) is a dual-axis motor. One of the output shafts of the drive motor (12) is fixedly connected to the lifting screw (23) at the bottom, and the other output shaft of the drive motor (12) is fixedly connected to the active bevel gear (121). The support assembly (5) includes a movable seat (51) and a support block (52). A sliding cavity (14) is opened on the surface of the vehicle body (1) facing the lifting assembly (2). The movable seat (51) is set on one side of the lifting assembly (2). The bottom of the movable seat (51) extends into the sliding cavity (14) and the two slide and adapt to each other. The vehicle body (1) is rotatably connected to the travel screw (15) in the sliding cavity (14). The travel screw (15) passes through the movable seat. The seat (51) is threaded together with the other two. One end of the travel screw (15) extends into the mounting cavity (13). The end of the travel screw (15) extending into the mounting cavity (13) is fixedly connected to the driven bevel gear (151) that meshes with the driving bevel gear (121). The car body (1) is fixedly connected to the guide rod (16) in the sliding cavity (14). The guide rod (16) passes through the moving seat (51) and the two slide together. The support block (52) is fixedly connected to the moving seat (51) on the side facing the lifting assembly (2). The support block (52) has an inclined surface on the side away from the moving seat (51), and the inclined surface of the support block (52) abuts against the support seat (22) at the bottom.The linkage assembly (4) includes a linkage sleeve (41) and a linkage belt (42). The linkage sleeve (41) is sleeved on the lifting screw (23) and is rotatably connected to the lifting seat (21). A linkage block (411) is fixedly provided on the inner wall of the linkage sleeve (41). A linkage groove (211) that slides and adapts to the linkage block (411) is opened on the outer wall of the lifting screw (23). A linkage wheel (412) is fixedly connected on the linkage sleeve (41). The linkage belt (42) passes around two adjacent linkage wheels (412). A guide block (6) is fixedly connected to the side wall of the lifting seat (21) away from the support seat (22). The lifting seat (21) faces the support. The side wall of the seat (22) is provided with a guide groove (212), and the guide block (6) is set in the guide groove (212). The lifting seat (21) is fixedly connected to a limit rod (213) at the guide groove (212). The limit rod (213) passes through the guide block (6) and the two are slidably adapted to each other. A fixing rod (61) is fixedly connected to one side of the guide block (6). A limit gear (611) is fixedly connected to the fixing rod (61). A limit rack (2141) adapted to the limit gear (611) is provided on one side of the limit gear (611). A slide rod (214) is fixedly connected to the side of the limit rack (2141) away from the limit gear (611). The end of the slide rod (214) away from the limiting rack (2141) passes through the lifting seat (21) and extends to the outside. The slide rod (214) and the lifting seat (21) are slidably adapted. The end of the slide rod (214) extending out of the lifting seat (21) is fixedly connected to a reset plate (2142). A reset spring (2413) is fixedly connected between the reset plate (2142) and the lifting seat (21). A first telescopic cylinder (215) is installed on the outer wall of the lifting seat (21). A pressing block (2151) for pressing the slide rod (214) is fixedly connected to the piston rod end of the first telescopic cylinder (215). A ratchet (41) is fixedly connected to the linkage sleeve (41). 3) A pawl (216) adapted to the ratchet (413) is provided on one side of the lifting screw (23). The pawl (216) is rotatably connected to the lifting seat (21). A torsion spring (217) is installed at the connection between the pawl (216) and the lifting seat (21). A trigger block (7) is provided on one side of the pawl (216). The trigger block (7) is used to press the pawl (216). A trigger rod (2152) is fixedly connected between the pressing block (2151) and the trigger block (7). A telescopic rod (71) is fixedly connected between the trigger block (7) and the lifting seat (21). A telescopic spring (72) is fixedly connected between the trigger block (7) and the lifting seat (21).

2. The self-propelled garden lifting platform according to claim 1, characterized in that: The bottom support base (22) is ball-hinged with a roller (222) at one end near the support block (52), and the surface of the support block (52) facing the support base (22) has a roller groove (521) adapted to the rolling of the roller (222).

3. The self-propelled garden lifting platform according to claim 1, characterized in that: The vehicle body (1) is equipped with a second telescopic cylinder (17) on the side wall away from the support seat (22). The piston rod end of the second telescopic cylinder (17) is fixedly connected to a support plate (8). The support plate (8) is connected to a ground claw (811) on the side wall away from the second telescopic cylinder (17).

4. The self-propelled garden lifting platform according to claim 3, characterized in that: Both sides of the support plate (8) are fixedly connected to support legs (81), and the ground claws (811) are fixedly connected to the surface of the support legs (81) away from the support plate (8). An alarm and a pressure sensor are installed on the support legs (81).

5. A self-propelled garden lifting platform according to claim 1, characterized in that: The support base (22) is fixedly connected to the side wall of the vehicle body (1) with a pad (221).

Images