Multi-functional aerial platform

Abstract

This utility model discloses a multi-functional aerial work platform vehicle, including a vehicle body, with a cab and a cargo box installed at the front and rear ends of the vehicle body, respectively. Both sides of the cargo box are equipped with drive components and lifting brackets with a work platform fixed to the top. The cargo box contains a height-increasing bracket with limiting channels on both opposite sides. A storage cavity is formed between the height-increasing bracket, the work platform, and the bottom of the cargo box. The third side of the height-increasing bracket communicates with the storage cavity. A rectangular fence is provided above the edge of the work platform. Both opposite sides of the work platform are equipped with foldable brackets that can be folded up and down, and locking components for locking the foldable brackets. The fence is connected to the work platform via the foldable brackets. A sunshade and a storage display stand are provided on the work platform. Several grooves are formed on the upper surface of the storage display stand. The upper surface of the work platform has strap rings on all four sides and mounting slots that can be detachably connected to the bottom of the sunshade and the bottom of the storage display stand. It has the advantages of high overall space utilization, convenient use, and high overall stability.

Description

Technical Field

[0001] This utility model belongs to the field of high-altitude operation technology, and more specifically, it relates to a multi-functional high-altitude operation vehicle. Background Technology

[0002] An aerial work platform is a vehicle that can transport workers to work at heights. It consists of a work platform, railings, and lifting supports mounted on the vehicle body. It is generally used by workers to perform tasks such as the installation of billboards, equipment maintenance, and repair at heights. It has good safety and stability, low power consumption, and is widely used in various fields.

[0003] Currently, Chinese patent CN209322438U discloses a small aerial work platform, including a work platform, a lifting bracket movably mounted on the lower surface of the work platform, a hydraulic pump movably mounted in the middle of the lifting bracket, and a fence fixedly mounted on the edge of the upper surface of the work platform. This aerial work platform has the following problems: 1. When performing aerial work, people typically stand on the work platform at its lowest point and wait to be ascended. During the long ascent and descent from the lowest point to the highest point, the lifting bracket is prone to swaying, causing the worker to lose their footing. The ascent and descent time is long, resulting in poor overall stability and low work efficiency. 2. When not performing aerial work, the work platform is lowered to its lowest point, and the lifting bracket... The folding mechanism, designed to prevent the vehicle from being idle and wasted, is typically used to store other heavy items. However, because the railing is fixed and cannot be folded, it occupies a large space, leaving only the work platform for storage. The uneven weight distribution of stored items and the platform's weight on the lifting frame can lead to bending and deformation over time, affecting the stability and efficiency of high-altitude operations. This results in low space utilization, poor overall stability, and low work efficiency. Furthermore, during high-altitude operations, because the railing is fixed to the work platform, in situations such as sudden heat, light rain, or a lack of tools, it is often necessary to lower the platform again so that another worker can climb over the railing to enter the platform to assist with holding an umbrella or frequently bend over to rummage through tool bags, impacting work efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-functional aerial work platform that makes reasonable use of the overall space, increases the overall storage space, and improves the overall lifting stability and working speed. It has the advantages of high overall space utilization, high stability and high work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multi-functional aerial work platform includes a vehicle body, with a cab and a cargo box installed at the front and rear ends of the vehicle body, respectively. Lifting brackets and drive components are installed on both sides of the cargo box. A work platform is fixedly connected to the top of the lifting bracket. A heightening bracket is installed inside the cargo box to support and elevate the work platform. Limiting channels for directional lifting of the lifting bracket are provided on opposite sides of the heightening bracket. A storage cavity is formed between the heightening bracket, the work platform, and the bottom of the cargo box. A third side of the heightening bracket communicates with the storage cavity. A rectangular fence is provided above the edge of the work platform. Foldable brackets that fold up and down and locking components for locking the foldable brackets are provided on opposite sides of the work platform. The fence is connected to the work platform via the foldable brackets. A sunshade and a storage display stand are provided on the work platform. Several grooves for placing different tools are opened on the upper surface of the storage display stand. Straps and mounting slots that can be detachably connected to the bottom of the sunshade and the bottom of the storage display stand are provided on all four sides of the upper surface of the work platform.

[0007] Further configuration: The height-increasing bracket includes two first vertical rods and two second vertical rods. The limiting channel is located between the first vertical rods and the second vertical rods. The bottom ends of the first vertical rods and the second vertical rods are fixedly connected to connecting seats. A rectangular frame base is detachably installed at the bottom of the carriage. The connecting seats are fixedly connected to the two inner sides of the base by bolts. The first vertical rods and the second vertical rods are located at the front and rear ends of the carriage, respectively. Limiting parts are provided on the bottom sides of the opposite sides of the workbench. A crossbar for supporting the limiting parts is connected between the top ends of the two first vertical rods and between the top ends of the two second vertical rods. Blocks to prevent the limiting parts from swaying along the length of the crossbar are installed on both sides of the upper end face of the crossbar.

[0008] Further configuration: multiple crisscrossing reinforcing ribs are connected between the limiting parts, and the upper end face of the reinforcing ribs is connected to the bottom end face of the worktable.

[0009] Further configuration: The lifting support includes several scissor lift assemblies that are hinged to each other from top to bottom. Each scissor lift assembly includes two support tubes that are hinged together in an X-shape. Each support tube consists of an outer tube and an inner tube fixedly fitted inside the outer tube. The cross-sections of the inner tube and the outer tube are elliptical and square, respectively. The top end of one support tube of the top-layer scissor lift assembly is hinged to the limiting part, and the top end of the other support tube is hinged to an upper pulley. The upper pulley slides along the front and rear end directions of the carriage and is connected to one side of the limiting part. The bottom-layer scissor lift assembly... One support tube of the component is hinged at the bottom to one side of the base, and the other support tube is hinged at the top to a sliding wheel. The sliding wheel slides along the front and rear ends of the two carriages and is connected to one side of the base. The bottom of the two scissor assemblies on the top layer is fixedly connected to a rear connecting rod located at the rear end of the carriage. The tops of the scissor assemblies on the same layer are fixedly connected to a front connecting rod located at the front end of the carriage. The driving component is a hydraulic pump that drives the lifting and lowering of several scissor assemblies. The top rod and bottom of the hydraulic pump are respectively hinged to the rear connecting rod and the front connecting rod of the bottom layer.

[0010] Further configuration: The locking assembly includes a first wing bolt and a first wing nut. Connecting blocks are welded to opposite sides of the workbench. The connecting blocks and the lower end of the foldable bracket are provided with first threaded holes for the first wing bolt to pass through.

[0011] Further configuration: The foldable bracket includes two side connecting rods and a middle connecting rod located between the two side connecting rods; the length of the middle connecting rod is the same as the length of the side connecting rods and is less than the distance between the middle connecting rod and the side connecting rods; the fence includes two short rods located at the front and rear ends of the carriage respectively and two long rods located on opposite sides of the workbench; the two short rods are fixedly connected to the top ends of the two long rods respectively; the top ends of the middle connecting rod and the side connecting rods are hinged to the inner side of the long rods; the bottom ends of the side connecting rods and the middle connecting rods are hinged to the outer side of the workbench; the long rods, the workbench, and the two side connecting rods form a parallel double-crank mechanism; the first threaded hole is located at the lower end of the middle connecting rod; the height of the top of the height-increasing bracket relative to the ground is greater than the height of the top of the vehicle front relative to the ground; a set of support columns for supporting the long rods, side connecting rods, and middle connecting rods are connected to the bottom of opposite sides of the workbench.

[0012] Further configuration: Reinforcing connecting rods are hinged to the other opposite sides of the worktable. The short rod is provided with a second wing bolt, and the second wing bolt is connected to a second wing nut. The top of the reinforcing connecting rod and the short rod are provided with a second threaded hole for the thread of the second wing bolt to pass through. The bottom of the other opposite sides of the worktable is connected with an L-shaped plate for placing the reinforcing connecting rod.

[0013] Further configuration: The foldable bracket includes a first connecting rod and a second connecting rod, which are hinged in the middle and arranged in an X-shape; the bottom end of the first connecting rod is hinged to the outside of the workbench, and the top end is hinged to an upper slider, which slides along the front and rear ends of the carriage and is connected to the bottom of the fence; the top end of the second connecting rod is hinged to the bottom of the fence, and the bottom end is hinged to a lower slider, which slides along the front and rear ends of the carriage and is connected to the outside of the workbench; fixed tubes are fixed on the other two opposite sides of the workbench, and fixed bolts are threaded onto the fixed tubes; one end of the fixed bolts is provided with a rotating nut; telescopic tubes are fixedly connected to the bottom of the front and rear ends of the fence; the telescopic tubes slide up and down and are connected to the upper end of the fixed tubes; the telescopic tubes have a set of first threaded grooves from top to bottom for the other end of the fixed bolts to connect; a connecting plate is connected at the middle hinge of the first connecting rod and the second connecting rod, and the first threaded hole is provided on the connecting plate.

[0014] Further details: The sunshade includes an umbrella body, a fixing base, and a locking bolt. The upper end of the fixing base is connected to a connector for the lower end of the umbrella body to pass through. A third threaded hole is provided on one side of the connector, and a second threaded groove is provided on one side of the lower end of the umbrella body. One end of the locking bolt passes through the third threaded hole and abuts against the second threaded groove, and the other end of the locking bolt is connected to a rotating handle. Three support rods are evenly hinged around the lower end of the fixing base. The bottom of each support rod is connected to an anti-slip pad and a positioning post. The workbench has a positioning groove for the positioning post to pass through, and a threaded post portion that is threadedly connected to the mounting groove is provided in the middle of the bottom of the fixing base.

[0015] Further configuration: The storage display stand is T-shaped, the groove is formed at the horizontal end of the storage display stand, the bottom of the vertical end of the storage display stand is provided with a threaded block, the threaded block is threadedly connected to the mounting groove, the horizontal end of the storage display stand is detachably connected with a flip cover for sealing the groove, the horizontal end of the storage display stand is also provided with a storage groove, the storage groove is provided with a sealing plug for sealing the mounting groove, the bottom of the sealing plug is provided with an external thread groove that matches the mounting groove, and the top of the sealing plug is hinged with a rotating pull ring.

[0016] In summary, this utility model, through the heightening bracket, increases the initial height of the workbench relative to the ground, shortening the height the worker needs to rise as the workbench requires, while adding stable support to the workbench, ensuring the stability of the upper and lower workbenches and distributing the weight of the workbench and the objects stored on it, thus improving overall stability and work efficiency. The limiting channel limits the lifting bracket, further enhancing the stability of the workbench. The strap rings, workbench, storage cavity, railing, foldable bracket, and locking assembly increase the overall storage space, achieving upper and lower double-layer storage functionality. When not performing high-altitude work, this design maintains the upper and lower double-layer storage functionality while minimizing the space occupied by the railing. The design utilizes space to further improve overall space utilization and ensure operational safety. Through sunshades, storage stands, and recessed areas, the workbench space is rationally utilized, adding automatic sun and rain protection and the ability to display different tools in sequence. This eliminates the need for another worker to climb over the fence to assist, facilitating individual work and ensuring operational safety while further improving space utilization and work efficiency. Four mounting slots allow for the detachable installation of sunshades or storage stands in corresponding or nearby locations, depending on the direction of the sun, rain, or work direction. This ensures the effectiveness of the sunshades and storage stands, allows for detachable storage, and further enhances space utilization.

[0017] This utility model makes reasonable use of the overall space, increases the overall storage space, and improves the overall lifting stability and working speed. It has the advantages of high overall space utilization, high stability and high working efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a front sectional view of Embodiment 1 of the present utility model;

[0020] Figure 3 for Figure 2 A magnified view of part A;

[0021] Figure 4 for Figure 2 A magnified view of part B;

[0022] Figure 5 This is a partial structural schematic diagram of Embodiment 1 of the present utility model;

[0023] Figure 6 This is a structural schematic diagram of the fence in the folded state according to Embodiment 1 of this utility model;

[0024] Figure 7This is a schematic diagram of the structure of the sunshade and storage display stand from different angles in Embodiment 1 of this utility model;

[0025] Figure 8 This is a schematic diagram of the structure in the rising state of Embodiment 1 of this utility model;

[0026] Figure 9 for Figure 8 A magnified view of part of C;

[0027] Figure 10 This is a schematic diagram of the workbench and upper pulley in Embodiment 1 of this utility model;

[0028] Figure 11 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0029] Figure 12 for Figure 11 A magnified view of part of D;

[0030] Figure 13 This is a partial cross-sectional view of the locking assembly according to Embodiment 2 of this utility model.

[0031] In the diagram: 1. Vehicle body; 2. Carriage compartment; 3. Front end; 4. Workbench; 5. Limiting channel; 6. Storage cavity; 7. Storage display stand; 8. Groove; 9. Strap ring; 10. Mounting slot; 11. First vertical rod; 12. Second vertical rod; 13. Connecting seat; 14. Base; 15. Horizontal bar; 16. Limiting part; 17. Blocking block; 18. Reinforcing rib; 19. Hydraulic pump; 20. Scissor lift assembly; 21. Support tube; 22. Rear connecting rod; 23. Front connecting rod; 24. Inner tube; 25. Outer tube; 26. First wing bolt; 27. First wing nut; 28. Connecting block; 29. ​​First threaded hole; 30. Side connecting rod; 31. Middle connecting rod; 32. Short rod; 33. Long rod; 34. Support column 35. Reinforcing connecting rod; 36. Second wing bolt; 37. Second wing nut; 38. Second threaded hole; 39. L-shaped plate; 40. First connecting rod; 41. Second connecting rod; 42. Fixing tube; 43. Telescopic tube; 44. First threaded groove; 45. Connecting plate; 46. Umbrella body; 47. Fixing seat; 48. Locking bolt; 49. Inserting tube; 50. Third threaded hole; 51. Second threaded groove; 52. Rotating handle; 53. Support rod; 54. Anti-slip pad; 55. Positioning post; 56. Positioning groove; 57. Threaded post; 58. Sealing plug; 59. Storage slot; 60. Flip cover; 61. Rotating pull ring; 62. Threaded block; 63. Fixing bolt; 64. Upper pulley; 65. Lower pulley. Detailed Implementation

[0032] To explain the technical content, objectives, and effects of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings. It should be noted that the terms "upper" and "lower" used in the following description refer to the attached drawings. Figure 2 The direction in the middle, the words "bottom" and "top" refer to the attached Figure 2 The direction from the center of the vehicle to the geometric center of a specific component; additionally, the direction from "front" to "rear" in this article is the same as the direction from the front of the vehicle to the carriage, and also consistent with the attached... Figure 2 The front and rear ends of the marked carriages are parallel in direction a. The line connecting the "relative sides" in "relative sides of the heightening bracket" and "relative sides of the workbench" in the text is parallel to the length direction of the crossbar in direction b (see appendix). Figure 8 )same.

[0033] The most crucial concept of this utility model lies in the following: By using a heightening bracket, the starting height of the workbench 4 is increased, shortening the distance the worker needs to rise with the workbench 4. Simultaneously, it ensures the stability of the worker when ascending and descending the workbench 4 and distributes the weight of the workbench 4 and the objects stored on it, thereby improving overall stability and work efficiency. The limiting channel 5 limits the lifting bracket, preventing the workbench 4 from swaying due to the lifting bracket's movement, thus improving the stability of the workbench 4. The binding ring 9, the workbench 4, and the storage cavity 6 achieve double-layer storage functionality. The fence, foldable bracket, and locking assembly enable the fence to be raised, lowered, and folded. The sunshade, storage display stand 7, and several grooves 8 provide automatic sun and rain protection and categorized storage and display of different tools. Four mounting slots 10 allow for the detachable and adjustable installation of the sunshade or storage display stand 7 according to different directions of sunlight, rain, or work directions, improving the usability of the sunshade and storage display stand 7 and enabling detachable storage.

[0034] This utility model integrates upper and lower double-layer storage functions, heightening and stabilizing support for the workbench 4, categorized storage and display of different tools, sunshade and rain protection functions, and a height-adjustable and foldable fence function. It makes reasonable use of the overall space, realizes multiple functions, increases the overall storage space, and shortens the distance that workers have to travel with the workbench 4 when it rises. It avoids bending of the lifting support due to long-term excessive pressure. In case of heat, light rain, or sudden shortage of tools, there is no need to lower the workbench 4 or add another person to climb over the fence for assistance. It improves the stability of the upper and lower workbench 4, the stability of the lifting of the workbench 4, and the overall working speed. Overall, it has the advantages of high space utilization, high stability, and high work efficiency.

[0035] Please refer to Figures 1 to 13As shown, a multi-functional aerial work platform includes a vehicle body 1. A cab 3 and a cargo box 2 are respectively installed at the front and rear ends of the vehicle body 1. Lifting brackets and drive components are installed on both sides of the cargo box 2. A work platform 4 is fixedly connected to the top of the lifting brackets. An extension bracket is installed inside the cargo box 2 to support and elevate the work platform 4. Limiting channels 5 for directional lifting of the lifting bracket are provided on opposite sides of the extension bracket. A storage cavity 6 is formed between the extension bracket, the work platform 4, and the bottom of the cargo box 2. The third side of the extension bracket is connected to the storage cavity 6. The workbench 4 has a rectangular railing above its edge. On both sides of the workbench 4, there are foldable supports that can be folded up and down and locking components for locking the foldable supports. The railing is connected to the workbench 4 by the foldable supports. The workbench 4 has a sunshade and a storage display stand 7. The upper surface of the storage display stand 7 has several grooves 8 for placing different tools. The upper surface of the workbench 4 has strap rings 9 on all four sides and mounting slots 10 that can be detachably connected to the bottom of the sunshade and the bottom of the storage display stand 7.

[0036] As described above, when high-altitude operations are required, firstly, the riser bracket is used to increase the initial height of the work platform 4 relative to the ground. Users can quickly and stably ascend to the upper surface of the work platform 4 using a stable external ladder (such as an A-frame ladder). This shortens the time and height required for the user to ascend the work platform 4, while simultaneously adding stable support. This avoids the unstable swaying caused by changes in the lifting height of the riser bracket, which is common in existing technologies where the work platform 4 is supported only by the lifting bracket. This improves overall stability, work efficiency, and safety. Secondly, the limiting channel 5 limits the movement of the lifting bracket, preventing any instability during ascent and descent from the work platform 4. The swaying of the lifting support caused by the shaking of the worktable 4 is addressed by reducing the amplitude of the shaking during the ascent of the worktable 4, thus further improving the overall stability. Then, when the worker steps onto the worktable 4 and before it begins to rise, the worker can manually grasp the railing, foldable support, and locking assembly. By opening the locking assembly, the worker can manually pull the railing upwards, causing the foldable support to extend upwards until it reaches the preset height above the worktable 4. Then, the locking assembly is used to lock the extended foldable support onto the worktable 4. During operation, the railing and the fixed foldable support work together to provide safety protection, demonstrating the railing's retractable and foldable design and further enhancing the safety of the worker.

[0037] After the drive unit raises the lifting bracket to a relatively stable height, the space of the workbench 4 is utilized by employing sunshades, storage stands 7, and recesses 8. This adds an automatic sunshade and rain protection function for workers during high-altitude operations, preventing sunburn, heatstroke, or discomfort from rain. Several recesses 8, pre-placed with different tools, allow for easy access and use by individual workers. This avoids the need to lower the platform for another worker to climb over barriers in case of sudden heat, light rain, or tool shortages. The platform assists in holding umbrellas, and avoids situations where frequent bending over to rummage through tool bags affects work efficiency. It further improves space utilization, overall work efficiency, and ensures operational safety. Through four mounting slots 10 located on the four sides of the upper surface of the workbench 4, when encountering different directions of sun or rain or working in different directions, the sun umbrella or storage display 7 can be detachably installed on the corresponding or near mounting slot 10. When not in use or needing replacement, the sun umbrella or storage display 7 can be detached from the mounting slot 10, which ensures the effectiveness of the sun umbrella and storage display 7 and further improves space utilization.

[0038] When the high-altitude operation is completed, lower the work platform 4 to the initial position, first open the locking component, then manually grab the railing and slowly press it down, causing the foldable bracket to fold and compress downwards until the railing returns to its original position on the work platform 4. Then use the locking component to lock the compressed and folded foldable bracket onto the work platform 4. When not in use, this reduces the space occupied by the railing, and avoids affecting work efficiency and stability of the work platform 4 by workers having to frequently lift their legs to climb over the railing during the process of going up and down the work platform 4. This improves space utilization, overall stability and work efficiency. When not performing high-altitude operations, to avoid wasting the vehicle by keeping it idle, larger heavy objects that need to be stored are placed into the storage cavity 6 from the third side of the extension bracket via the work platform 4, storage cavity 6, and strap rings 9. Thinner and lighter objects are then tied to the upper surface of the work platform 4 after the fence has been folded, achieving double-layer storage and improving space utilization. The extension bracket also distributes the weight of the heavy objects stored on the work platform 4 and the work platform itself, preventing the bracket from bending or deforming and affecting the stability and efficiency of high-altitude operations, thus further improving overall stability and work efficiency.

[0039] Furthermore, the height-increasing bracket includes two first vertical rods 11 and two second vertical rods 12. The limiting channel 5 is located between the first vertical rods 11 and the second vertical rods 12. The bottom ends of the first vertical rods 11 and the second vertical rods 12 are fixedly connected to the connecting seats 13. The bottom of the carriage 2 is detachably installed with a base 14 in the shape of a rectangular frame. The connecting seats 13 and the two inner sides of the base 14 are fixedly connected by bolts. The first vertical rods 11 and the second vertical rods 12 are located at the front end and the rear end of the carriage 2, respectively. The bottom of the opposite sides of the workbench 4 are provided with limiting parts 16 extending downward. The top ends of the two first vertical rods 11 and the top ends of the two second vertical rods 12 are connected with crossbars 15 for supporting the limiting parts 16. The upper end face of the crossbars 15 is equipped with blocking blocks 17 on both sides to prevent the limiting parts 16 from swaying along the length of the crossbars 15.

[0040] As described above, the first vertical bar 11 and the second vertical bar 12 on the same side serve to limit the lifting support; this prevents the lifting support from swaying along the line connecting the front and rear ends of the carriage 2 when not performing high-altitude operations, and also reduces the amplitude of swaying along the line connecting the front and rear ends of the carriage 2 during lifting, thereby improving the stability of the lifting support and the work platform 4; the connecting seat 13 and the base 14 are fixedly connected by bolts to the two inner sides of the connecting seat 13 and the base 14, enabling the lifting support to be detachably connected to the carriage 2; the crossbar 15, the blocking block 17, and the limiting part 16 are used to support the limiting part 16 by using the crossbar 15, and the blocking block 17 on the same side abuts against the inner side of the limiting part 16, preventing the work platform 4 from swaying along the two sides of the lifting support, thus providing support and limiting for the bottom of the work platform 4.

[0041] Furthermore, multiple crisscrossing reinforcing ribs 18 are connected between the limiting parts 16, and the upper end face of the reinforcing ribs 18 is connected to the bottom end face of the worktable 4.

[0042] As can be seen from the above description, by connecting the reinforcing ribs 18 between the limiting parts 16, the structural strength of the bottom of the worktable 4 is increased, which further ensures the stability of the worktable 4 in use.

[0043] Furthermore, the lifting support includes several scissor lift assemblies 20 that are hinged to each other from top to bottom. Each scissor lift assembly 20 includes two support tubes 21 that are hinged to each other in an X-shape. Each support tube 21 consists of an outer tube 25 and an inner tube 24 fixedly sleeved inside the outer tube 25. The inner tube 24 and the outer tube 25 have elliptical and square cross sections, respectively. The top end of one support tube 21 of the top scissor lift assembly 20 is hinged to the limiting part 16, and the top end of the other support tube is hinged to an upper pulley 64. The upper pulley 64 slides along the front and rear end directions of the carriage 2 and is connected to one side of the limiting part 16. The bottom scissor lift assembly 20... One support tube 21 is hinged at the bottom to one side of the base 14, and the other support tube 21 is hinged at the top to a sliding wheel 65. The sliding wheel 65 slides along the front and rear ends of the two carriages 2 and is connected to one side of the base 14. The bottom of the two scissor assemblies 20 on the top layer is fixedly connected to a rear connecting rod 22 located at the rear end of the carriage 2. The top of the scissor assemblies 20 on the same layer is fixedly connected to a front connecting rod 23 located at the front end of the carriage 2. The driving component is a hydraulic pump 19 that drives the lifting and lowering of several scissor assemblies 20. The top rod and bottom of the hydraulic pump 19 are hinged to the rear connecting rod 22 and the front connecting rod 23 of the bottom layer, respectively.

[0044] As described above, when the lifting bracket needs to be driven to rise, the hydraulic pump 19 is activated, the top rod of the hydraulic pump 19 extends, and pushes the rear connecting rod 22 to vertically stretch the top scissor assembly 20 upward. The other support tube on the same side as the top and bottom layers slides in the direction of the opposite support tube closer to the same lifting bracket under the action of the upper pulley 64 and the lower pulley 65, thereby driving the two support tubes 21 of the scissor assembly 20 to retract laterally. Here, the lateral direction is towards the front and rear end connection direction of the carriage 2, thereby driving the worktable 4 to rise to the preset height. When the lifting bracket needs to be driven to fall, the opposite is true. The top rod of the hydraulic pump 19 retracts, and drives the other support tube on one side of the lifting bracket to slide in the direction of the opposite support tube away from the same lifting bracket through the upper pulley 64 and the lower pulley 65. This drives the two support tubes 21 of the scissor assembly 20 to stretch and fold laterally along the front and rear ends of the carriage, thereby automatically driving the lifting bracket to rise and fall.

[0045] By setting the support tube 21 to consist of an outer tube 25 with an elliptical cross-section and an inner tube 24 with a square cross-section, a double-tube configuration is adopted, which reduces the weight of the lifting bracket while ensuring the overall structural strength and improving the specific strength of the lifting bracket. There is only one rear connecting rod 22, which is located between the bottom of the two scissor assemblies 20 at the top layer. When a large heavy object to be stored is placed into the storage cavity 6 from the third side of the lifting bracket, i.e. the rear end of the carriage 2, the rear connecting rod 22 is not allowed to interfere with the object entering the storage cavity 6.

[0046] Furthermore, the locking assembly includes a first wing bolt 26 and a first wing nut 27. Connecting blocks 28 are welded to opposite sides of the workbench 4. Both the connecting blocks 28 and the lower end of the foldable bracket are provided with first threaded holes 29 for the first wing bolt 26 to pass through.

[0047] As can be seen from the above description, when it is necessary to stretch the fence upward to a preset height or fold it downward onto the workbench 4, first remove the first wing bolt 26 and the first wing nut 27 from the connecting block 28, then thread one end of the first wing bolt 26 through the first threaded hole 29 of the connecting block 28 and the first threaded hole 29 at the lower end of the foldable bracket in sequence, and then screw the first wing nut 27 onto one end of the first wing bolt 26 until it abuts against the side of the connecting block 28 away from the foldable bracket, thereby achieving the function of locking and fixing the stretched foldable bracket onto the workbench 4.

[0048] Furthermore, the foldable bracket includes two side connecting rods 30 and a middle connecting rod 31 located between the two side connecting rods 30; the length of the middle connecting rod 31 is the same as the length of the side connecting rods 30, and is less than the distance between the middle connecting rod 31 and the side connecting rods 30. The fence includes two short rods 32 located at the front and rear ends of the carriage 2 respectively, and two long rods 33 located on opposite sides of the workbench 4. The two short rods 32 are fixedly connected to the top ends of the two long rods 33 respectively, and the top of the middle connecting rod 31 and the top of the side connecting rods 30 are also fixedly connected. The ends of the long rod 33 are hinged to the inside of the long rod 33. The bottom ends of the side connecting rod 30 and the middle connecting rod 31 are hinged to the outside of the worktable 4. The long rod 33, the worktable 4 and the two side connecting rods 30 form a parallel double crank mechanism. The first threaded hole 29 is located at the lower end of the middle connecting rod 31. The height of the top of the height-increasing bracket relative to the ground is greater than the height of the top of the front of the vehicle 3 relative to the ground. A set of support columns 34 for supporting the long rod 33, the side connecting rods 30 and the middle connecting rod 31 are connected to the bottom of the opposite sides of the worktable 4.

[0049] As described above, when the fence needs to be folded, first remove the first wing bolt 26 and the first wing nut 27 from the connecting block 28. Push the fence diagonally downwards towards the front of the vehicle 3. Because the long rod 33 of the fence, the workbench 4, and the two side connecting rods 30 form a parallel double crank mechanism, the middle connecting rod 31 and the two side connecting rods 30 all rotate towards the front of the vehicle 3 until the bottom of the short rod 32 is placed on the upper surface of the workbench 4. The short rod 32 is located on the opposite sides of the workbench 4. Then, screw the first wing bolt 26 sequentially into the first threaded hole 29 of the connecting block 28 and... In the first threaded hole 29 at the lower end of the middle connecting rod 31, the first wing nut 27 can be tightened again. Similarly, when it is necessary to pull the fence upward, after opening the locking assembly, push the fence diagonally upward in the direction away from the front of the vehicle 3. The middle connecting rod 31 and the side connecting rod 30 rotate in the direction away from the front of the vehicle 3 until the fence rises to the preset position above the worktable 4. At this time, the middle connecting rod 31 and the side connecting rod 30 are perpendicular to the upper surface of the worktable 4. Without an external force pulling upward, the fence will always be in a folded state due to gravity, thus realizing the function of the fence being able to be raised and lowered and folded.

[0050] By setting the length of the intermediate connecting rod 31 to the length of the side connecting rod 30, and ensuring that the lengths of both the intermediate connecting rod 31 and the side connecting rod 30 are less than the distance between them, and positioning the intermediate connecting rod 31 and the side connecting rod 30 between the outer side of the workbench 4 and the inner side of the long rod 33, when the bottom of the short rod 32 contacts the upper surface of the workbench 4, ensuring that the intermediate connecting rod 31 and the side connecting rod 30 on the same side are parallel and coincident with the long rod 33, the upper and lower ends of the folding bracket can be completely folded and overlapped, further reducing the space occupied by the fence; when the short rod 32 When the bottom contacts the upper surface of the workbench 4, the support column 34 supports the bottom of the long rod 33, the side connecting rod 30 and the middle connecting rod 31, preventing the connection between the long rod 33 and the short rod 32 from breaking, and further ensuring the structural stability of the fence. Because the height of the top of the height-increasing bracket relative to the ground is greater than the height of the top of the vehicle head 3 relative to the ground, the front end of the fence after being fully folded is located above the vehicle head 3. Compared with folding the rear end of the fence carriage 2, it reduces the space occupied in the overall length direction, and at the same time avoids the fence from colliding with the top of the vehicle head 3.

[0051] Furthermore, reinforcing rods 35 are hinged to the other opposite sides of the worktable 4. The short rod 32 is provided with a second wing bolt 36. The second wing bolt 36 is connected to a second wing nut 37. The top of the reinforcing rod 35 and the short rod 32 are provided with a second threaded hole 38 for the thread of the second wing bolt 36 to pass through. The bottom of the other opposite sides of the worktable 4 is connected with an L-shaped plate 39 for placing the reinforcing rod 35.

[0052] As described above, after raising the fence above the workbench 4 and locking it with the locking assembly, first unscrew the second wing bolt 36 and the second wing nut 37 from the short rod 32, then manually rotate the reinforcing rod 35 upwards until the second threaded hole 38 at the top of the reinforcing rod 35 is rotated to communicate with the second threaded hole 38 of the short rod 32. Then, thread the second wing bolt 36 through the second threaded holes 38 of the short rod 32 and the reinforcing rod 35 in sequence. Finally, tighten the second wing nut 37 to the tail end of the second bolt until the second wing nut 37 abuts against the side of the reinforcing rod 35 away from the short rod 32. This achieves the detachable connection between the other opposite sides of the workbench 4 and the short rod 32, further improving the stability of the fence and enhancing its protection for workers. The L-shaped plate 39 serves to support and limit the bottom of the reinforcing rod 35.

[0053] Furthermore, the foldable bracket includes a first connecting rod 40 and a second connecting rod 41, which are hinged in the middle and arranged in an X-shape. The bottom end of the first connecting rod 40 is hinged to the outside of the workbench, and the top end is hinged to an upper slider, which slides along the front and rear ends of the carriage 2 and is connected to the bottom of the guardrail. The top end of the second connecting rod 41 is hinged to the bottom of the guardrail, and the bottom end is hinged to a lower slider, which slides along the front and rear ends of the carriage 2 and is connected to the outside of the workbench 4. The other opposite side of the workbench 4... Fixed pipes 42 are fixed on both sides, and fixed bolts 63 are threadedly connected to the fixed pipes 42. One end of the fixed bolts 63 is provided with a rotating nut. Telescopic pipes 43 are fixedly connected to the bottom of the front and rear ends of the fence. The telescopic pipes 43 slide up and down and are connected to the upper end of the fixed pipes 42. The telescopic pipes 43 have a set of first threaded grooves 44 from top to bottom for the other end of the fixed bolts 63 to be connected. A connecting plate 45 is connected at the middle hinge of the first connecting rod 40 and the second connecting rod 41. The first threaded hole 29 is provided with the connecting plate 45.

[0054] As described above, when the fence needs to be folded, first unscrew the first wing nut 27 from the tail end of the first wing bolt 26, then unscrew the first wing bolt 26 from the first threaded hole 29 of the connecting block 28 and the first threaded hole 29 of the connecting plate. Then, manually grasp the rotating nut and unscrew the other end of the fixing bolt 63 from the first threaded groove 44. Press the fence downwards, and under the action of gravity and the directional sliding of the upper and lower sliders, the first connecting rod 40 and the second connecting rod 41, which are hinged in the middle and arranged in an X-shape, fold downwards and compress. The telescopic tube 43 slides downward inside the fixed tube 42 until the first threaded groove 44 at the top of the telescopic tube 43 descends to the fixing bolt 63. The fixing bolt 63 is rotated into the first threaded groove 44 to realize the function of raising and lowering and folding the fence. By setting the fixed tube 42, the telescopic tube 43 and a set of first threaded grooves 44 between the other opposite sides of the workbench 4 and the short rod 32, the stability of the fence is further improved, and the fence can be adjusted to different heights. When the height of the fence needs to be adjusted, there is no need to use the locking component.

[0055] Furthermore, the sunshade includes an umbrella body 46, a fixing base 47, and a locking bolt 48. The upper end of the fixing base 47 is connected to a connector 49 for the lower end of the umbrella body 46 to pass through. A third threaded hole 50 is opened on one side of the connector 49, and a second threaded groove 51 is opened on one side of the lower end of the umbrella body 46. One end of the locking bolt 48 passes through the third threaded hole 50 and abuts against the second threaded groove 51. The other end of the locking bolt 48 is connected to a rotating handle 52. Three support rods 53 are evenly hinged along the circumference of the lower end of the fixing base 47. The bottom of the support rods 53 is connected to an anti-slip pad 54 and a positioning post 55. The workbench 4 has a positioning groove 56 for the positioning post 55 to pass through. A threaded post 57 is provided in the middle of the bottom of the fixing base 47, which is threaded into the mounting groove 10.

[0056] As described above, when installing a sunshade, firstly, insert the lower end of the umbrella body 46 into the insertion tube 49 at the upper end of the fixing base 47. Then, manually grasp the rotating handle 52 and thread one end of the locking bolt 48 through the third threaded hole 50 and abut it against the second threaded groove 51, thus achieving a detachable connection between the umbrella body 46 and the fixing base 47. Next, place the fixing base 47 with the umbrella body 46 installed in the corresponding mounting groove 10, and use the threaded post 57 at the bottom of the fixing base 47 to thread it into the mounting groove 10, thereby achieving a detachable connection between the umbrella body 46 and the workbench 4. The stability of the fixing base 47 is improved by the three support rods 53 and the anti-slip pads 54, while increasing the friction between the workbench 4 and the support rods 53, which further improves the connection stability between the sunshade and the workbench 4. The positioning post 55 and the positioning groove 56 serve to prevent the support rods 53 from rotating and limit their movement, further improving the connection stability between the sunshade and the workbench 4.

[0057] Furthermore, the storage display stand 7 is T-shaped, with a groove 8 at the horizontal end of the storage display stand 7. The bottom of the vertical end of the storage display stand 7 is provided with a threaded block 62, which is threadedly connected to the mounting groove 10. The horizontal end of the storage display stand 7 is detachably connected with a flip cover 60 for sealing the groove 8. The horizontal end of the storage display stand 7 is also provided with a storage groove 59, and a sealing plug 58 for sealing the mounting groove 10 is provided in the storage groove 59. The bottom of the sealing plug 58 is provided with an external thread groove that matches the mounting groove 10, and a rotating pull ring 61 is hinged to the top of the sealing plug 58.

[0058] As described above, when the storage display stand 7 needs to be installed, the threaded block 62 is threaded into the mounting groove 10, which enables a detachable connection between the vertical end of the storage display stand 7 and the workbench 4. The flip cover 60 prevents tools from falling out of the groove 8 and also prevents dust from falling into the groove 8, thus sealing the groove 8. With the sealing plug 58 and the external threaded groove, when not performing high-altitude work and needing to store the storage display stand 7 and the sunshade in the storage cavity 6 or place them horizontally on the workbench 4, after the storage display stand 7 and the sunshade are removed from the mounting groove 10, the sealing plug 58 is threaded into the mounting groove 10. This protects the mounting groove 10 from dust and rain while ensuring the flatness and aesthetics of the upper surface of the workbench 4, increasing the structural strength of the workbench 4 at the mounting groove 10, and sealing the mounting groove 10, improving the aesthetics of the workbench 4, and further enhancing the structural stability of the workbench 4. A rotating pull ring 61 is provided to facilitate unscrewing the sealing plug 58 from the mounting groove 10.

[0059] Reference Figures 1 to 10 The first embodiment provided by this utility model is as follows:

[0060] A multi-functional aerial work platform includes a vehicle body 1. A cab 3 and a cargo box 2 are respectively installed at the front and rear ends of the vehicle body 1. Lifting brackets and driving components for lifting the lifting brackets are installed on both sides of the cargo box 2. The driving components are hydraulic pumps 19. A work platform 4 is fixedly connected to the top of the lifting brackets. A heightening bracket is installed in the cargo box 2 to support and raise the work platform 4. Limiting channels 5 for directional lifting of the lifting brackets are provided on both sides of the heightening brackets. A storage cavity 6 is formed between the heightening brackets, the work platform 4 and the bottom of the cargo box 2. The third side of the heightening bracket communicates with the storage cavity 6. A rectangular fence is provided above the edge of the work platform 4. Foldable brackets that can be folded up and down and locking components for locking the foldable brackets are provided on both sides of the work platform 4. The fence and the work platform 4 are connected by the foldable brackets.

[0061] The height-adjustable bracket includes two first vertical rods 11 and two second vertical rods 12. The limiting channel 5 is located between the first vertical rods 11 and the second vertical rods 12. The bottom ends of the first vertical rods 11 and the second vertical rods 12 are fixedly connected to the connecting seats 13. A rectangular frame base 14 is detachably installed at the bottom of the carriage 2. The connecting seats 13 and the two inner sides of the base 14 are fixedly connected by bolts. The first vertical rods 11 and the second vertical rods 12 are located at the front and rear ends of the carriage 2, respectively. The bottom of the opposite sides of the workbench 4 extends downwards. A limiting part 16 is provided. A horizontal bar 15 for supporting the limiting part 16 is connected between the top ends of the two first vertical bars 11 and between the top ends of the two second vertical bars 12. Blocks 17 to prevent the limiting part 16 from swaying along the length of the horizontal bar 15 are installed on both sides of the upper end face of the horizontal bar 15. Multiple crisscrossing reinforcing ribs 18 are connected between the limiting parts 16. The upper end face of the reinforcing rib 18 is connected to the bottom end face of the workbench 4. The height of the top of the height-increasing bracket relative to the ground is greater than the height of the top of the front of the vehicle 3 relative to the ground.

[0062] The lifting support includes several scissor lift assemblies 20 that are hinged to each other from top to bottom. Each scissor lift assembly 20 includes two support tubes 21 that are hinged together in an X-shape. The top of one support tube 21 of the top scissor lift assembly 20 is hinged to a limiting part 16, and the top of the other support tube is hinged to an upper pulley 64. The upper pulley 64 slides along the front and rear ends of the carriage 2 and is connected to one side of the limiting part 16. The bottom of one support tube 21 of the bottom scissor lift assembly 20 is hinged to one side of the base 14, and the top of the other support tube 21 is hinged to a lower pulley 65. The lower pulley 65 slides along the front and rear ends of the two carriages 2 and is connected to one side of the base 14. Figure 9 and 10 In the middle, one side of the limiting part 16 is provided with a sliding groove for the upper pulley 64 to slide and connect, and one side of the base 14 is provided with a sliding groove for the lower pulley 65 to slide and connect. The structure is not limited to this sliding groove structure; other structures such as guide rails are also acceptable, as long as they satisfy the function of sliding and connecting the two pulleys along the front and rear directions of the carriage 2. The bottom of the two scissor assemblies 20 on the top layer is fixedly connected to the rear connecting rod 22 located at the rear end of the carriage 2, and the top of the scissor assemblies 20 on the same layer is fixedly connected to the front connecting rod 23 located at the front end of the carriage 2. The driving component is for driving several scissor assemblies. The hydraulic pump 19 is raised and lowered. The top rod and bottom of the hydraulic pump 19 are hinged to the rear connecting rod 22 and the front connecting rod 23 of the bottom layer, respectively. The above-mentioned scissor assemblies 20 and the hydraulic pump 19 constitute the existing scissor-type hydraulic lifting platform. The difference is that the support tube 21 is composed of an outer tube 25 and an inner tube 24 fixedly sleeved in the outer tube 25. The cross-sections of the inner tube 24 and the outer tube 25 are elliptical and square, respectively. The attached figure shows a three-scissor-type hydraulic lifting platform. The number of scissor assemblies is not limited to three. The number of scissor assemblies is selected according to the height requirements.

[0063] The locking assembly includes a first wing bolt 26 and a first wing nut 27. Connecting blocks 28 are welded to opposite sides of the workbench 4. The lower ends of the connecting blocks 28 and the foldable bracket are provided with first threaded holes 29 for the first wing bolt 26 to pass through.

[0064] The fence includes two short poles 32 and two long poles 33. The two short poles 32 are located at the front and rear ends of the carriage 2, respectively, and the two long poles 33 are located on opposite sides of the workbench 4. The two short poles 32 are fixedly connected to the top of the two ends of the two long poles 33.

[0065] The foldable bracket includes two side links 30 and a middle link 31 located between the two side links 30; the length of the middle link 31 is the same as the length of the side links 30 and is less than the distance between the middle link 31 and the side links 30. The top of the middle link 31 and the top of the side links 30 are both hinged to the inner side of the long rod 33, and the bottom of the side links 30 and the bottom of the middle link 31 are both hinged to the outer side of the worktable 4. The long rod 33, the worktable 4 and the two side links 30 form a parallel double crank mechanism. The first threaded hole 29 is provided at the lower end of the middle link 31.

[0066] The bottom of each of the opposite sides of the workbench 4 is connected to a set of support columns 34 for supporting the long rod 33, the side connecting rod 30 and the middle connecting rod 31; the other opposite sides of the workbench 4 are hinged with reinforcing connecting rods 35, the short rod 32 is provided with a second wing bolt 36, the second wing bolt 36 is connected with a second wing nut 37, the top of the reinforcing connecting rod 35 and the short rod 32 are provided with a second threaded hole 38 for the thread of the second wing bolt 36 to pass through, and the bottom of each of the other opposite sides of the workbench 4 is connected with an L-shaped plate 39 for placing the reinforcing connecting rod 35.

[0067] The workbench 4 is equipped with a sunshade and a storage display stand 7. The upper surface of the storage display stand 7 has several grooves 8 for placing different tools. The upper surface of the workbench 4 is equipped with strap rings 9 and mounting slots 10 that can be detachably connected to the bottom of the sunshade and the bottom of the storage display stand 7 on all four sides.

[0068] The sunshade includes an umbrella body 46, a fixing base 47, and a locking bolt 48. The upper end of the fixing base 47 is connected to a connector 49 for the lower end of the umbrella body 46 to pass through. A third threaded hole 50 is opened on one side of the connector 49, and a second threaded groove 51 is opened on one side of the lower end of the umbrella body 46. One end of the locking bolt 48 passes through the third threaded hole 50 and abuts against the second threaded groove 51. The other end of the locking bolt 48 is connected to a rotating handle 52. Three support rods 53 are evenly hinged to the lower end of the fixing base 47 along its circumference. The bottom of the support rods 53 is connected to an anti-slip pad 54 and a positioning post 55. The worktable 4 has a positioning groove 56 for the positioning post 55 to pass through. A threaded post 57 is provided in the middle of the bottom of the fixing base 47, which is threaded into the mounting groove 10.

[0069] The storage display stand 7 is T-shaped. A groove 8 is opened at the horizontal end of the storage display stand 7. A threaded block 62 is provided at the bottom of the vertical end of the storage display stand 7. The threaded block 62 is threadedly connected to the mounting groove 10. A flip cover 60 for sealing the groove 8 is detachably connected to the horizontal end of the storage display stand 7. A storage groove 59 is also opened at the horizontal end of the storage display stand 7. A sealing plug 58 for sealing the mounting groove 10 is provided in the storage groove 59. The bottom of the sealing plug 58 is provided with an external thread groove that matches the mounting groove 10 (not shown in the figure, the same throughout the text). A rotating pull ring 61 is hinged to the top of the sealing plug 58.

[0070] Example 2 differs from Example 1 in that, as Figures 11 to 13 As shown, the foldable bracket includes a first connecting rod 40 and a second connecting rod 41, which are hinged in the middle and arranged in an X-shape. The bottom end of the first connecting rod 40 is hinged to the outside of the workbench, and the top end is hinged to an upper slider, which slides along the front and rear ends of the carriage 2 and is connected to the bottom of the fence. The top end of the second connecting rod 41 is hinged to the bottom of the fence, and the bottom end is hinged to a lower slider, which slides along the front and rear ends of the carriage 2 and is connected to the outside of the workbench 4. Fixing pipes 42 are fixed on the other two opposite sides of the workbench 4. Fixing bolts 63 are threaded onto the fixing pipes 42, and one end of each fixing bolt 63 is provided with a rotating nut (not shown in the figure). As in the previous embodiment, telescopic tubes 43 are fixedly connected to the bottom of both the front and rear ends of the fence. The telescopic tubes 43 slide up and down and are connected to the upper end of the fixed tube 42. The telescopic tubes 43 have a set of first threaded grooves 44 from top to bottom for the other end of the fixing bolts 63 to be connected. A connecting plate 45 is connected to the middle hinge of the first connecting rod 40 and the second connecting rod 41. The first threaded hole 29 is provided with the connecting plate 45. Compared with the first embodiment, although the fence occupies more space after folding, the fence and foldable bracket of this embodiment have higher protection and the advantage of adjustable fence height. When adjusting the fence height, there is no need to use locking components.

[0071] In summary, compared with existing technologies, this utility model has the advantages of high overall space utilization, high stability, and high work efficiency. By increasing the height of the lifting bracket, the initial height of the workbench 4 is increased, shortening the height required for the worker to rise with the workbench 4, while adding a stable support force to the workbench 4, ensuring the stability of the upper and lower workbench 4 and distributing the weight of the workbench 4 and the objects stored on it, thus improving overall stability and work efficiency. The limiting channel 5 limits the lifting bracket, further enhancing the stability of the workbench 4. Through the strap ring 9, workbench 4, storage cavity 6, fence, foldable bracket, and locking assembly, the upper and lower double-layer storage function is achieved, while increasing overall storage capacity. The space occupied by the fence is reduced, which further improves the overall space utilization and ensures the safety of operation. By using the sunshade, storage display stand 7 and groove 8, the space of the workbench 4 is made reasonable use of, and the functions of automatic sunshade and rain protection and displaying different tools in sequence are added. There is no need to lower the platform or add another worker to climb over the fence to enter the platform to assist, which ensures the safety of operation and further improves the space utilization and work efficiency. The four mounting slots 10 make it easy to install the sunshade or storage display stand 7 on the corresponding or close mounting slots 10 according to different directions of sun or rain or different directions of operation, which ensures the use effect of the sunshade or storage display stand 7 and the function of detachable storage.

[0072] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-functional aerial work platform vehicle, comprising a vehicle body, wherein a cab and a cargo box are respectively installed at the front and rear ends of the vehicle body, and lifting brackets and drive components are installed on both sides inside the cargo box, and a work platform is fixedly connected to the top of the lifting bracket, characterized in that: The carriage is equipped with a height-adjusting bracket at the top to support and elevate the workbench. Limiting channels for the directional lifting of the lifting bracket are provided on both opposite sides of the height-adjusting bracket. A storage cavity is formed between the height-adjusting bracket, the workbench, and the bottom of the carriage. The third side of the height-adjusting bracket communicates with the storage cavity. A rectangular railing is provided above the edge of the workbench. Foldable brackets that fold up and down and locking components for locking the foldable brackets are provided on both opposite sides of the workbench. The railing is connected to the workbench via the foldable brackets. A sunshade and a storage display stand are provided on the workbench. Several grooves for placing different tools are opened on the upper surface of the storage display stand. Straps and mounting slots that can be detachably connected to the bottom of the sunshade and the bottom of the storage display stand are provided on all four sides of the upper surface of the workbench.

2. The multi-functional aerial platform vehicle of claim 1, wherein: The height-increasing bracket includes two first vertical rods and two second vertical rods. The limiting channel is located between the first vertical rods and the second vertical rods. The bottom ends of the first vertical rods and the second vertical rods are fixedly connected to connecting seats. A rectangular frame base is detachably installed at the bottom of the carriage. The connecting seats are fixedly connected to the two inner sides of the base by bolts. The first vertical rods and the second vertical rods are located at the front and rear ends of the carriage, respectively. Limiting parts are provided on the bottom sides of the opposite sides of the workbench. A crossbar for supporting the limiting parts is connected between the top ends of the two first vertical rods and between the top ends of the two second vertical rods. Blocks to prevent the limiting parts from swaying along the length of the crossbar are installed on both sides of the upper end face of the crossbar.

3. The multi-functional aerial platform vehicle of claim 2, wherein: The limiting parts are connected by multiple crisscrossing reinforcing ribs, and the upper end face of the reinforcing ribs is connected to the bottom end face of the worktable.

4. The multi-functional aerial platform vehicle of claim 2, wherein: The lifting support includes several scissor lift assemblies that are hinged to each other from top to bottom. Each scissor lift assembly includes two support tubes that are hinged together in an X-shape. Each support tube consists of an outer tube and an inner tube fixedly fitted inside the outer tube. The cross-sections of the inner tube and the outer tube are elliptical and square, respectively. The top end of one support tube of the top-layer scissor lift assembly is hinged to the limiting part, and the top end of the other support tube is hinged to an upper pulley. The upper pulley slides along the front and rear end directions of the carriage and is connected to one side of the limiting part. The bottom-layer scissor lift assembly... One support tube is hinged at its bottom end to one side of the base, and another support tube is hinged at its top end to a sliding wheel. The sliding wheel slides along the front and rear ends of the two carriages and is connected to one side of the base. A rear connecting rod located at the rear end of the carriage is fixedly connected between the bottoms of the two scissor assemblies on the top layer. A front connecting rod located at the front end of the carriage is fixedly connected between the tops of the scissor assemblies on the same layer. The driving component is a hydraulic pump that drives the lifting and lowering of several scissor assemblies. The top rod and bottom of the hydraulic pump are respectively hinged to the rear connecting rod and the front connecting rod of the bottom layer.

5. The multi-functional aerial platform vehicle of claim 1, wherein: The locking assembly includes a first wing bolt and a first wing nut. Connecting blocks are welded to opposite sides of the workbench. The connecting blocks and the lower end of the foldable bracket are provided with first threaded holes for the first wing bolt to pass through.

6. The multi-functional aerial platform vehicle of claim 5, wherein: The foldable bracket includes two side connecting rods and a middle connecting rod located between the two side connecting rods; the length of the middle connecting rod is the same as the length of the side connecting rods and is less than the distance between the middle connecting rod and the side connecting rods. The fence includes two short rods located at the front and rear ends of the carriage respectively and two long rods located on opposite sides of the workbench. The two short rods are fixedly connected to the top ends of the two long rods respectively. The top ends of the middle connecting rod and the side connecting rods are hinged to the inner side of the long rods, and the bottom ends of the side connecting rods and the middle connecting rods are hinged to the outer side of the workbench. The long rods, the workbench, and the two side connecting rods form a parallel double-crank mechanism. The first threaded hole is located at the lower end of the middle connecting rod. The height of the top of the height-increasing bracket relative to the ground is greater than the height of the top of the front of the vehicle relative to the ground. A set of support columns for supporting the long rods, side connecting rods, and middle connecting rods are connected to the bottom of opposite sides of the workbench.

7. The multi-functional aerial platform vehicle of claim 6, wherein: The workbench is hinged to the other two opposite sides with reinforcing rods. The short rod is provided with a second wing bolt, which is connected to a second wing nut. The top of the reinforcing rod and the short rod are provided with a second threaded hole for the thread of the second wing bolt to pass through. The bottom of the other two opposite sides of the workbench is connected to an L-shaped plate for placing the reinforcing rod.

8. The multi-functional aerial platform vehicle of claim 5, wherein: The foldable bracket includes a first connecting rod and a second connecting rod, which are hinged in the middle and arranged in an X-shape. The bottom end of the first connecting rod is hinged to the outside of the workbench, and the top end is hinged to an upper slider. The upper slider slides along the front and rear ends of the carriage and is connected to the bottom of the fence. The top end of the second connecting rod is hinged to the bottom of the fence, and the bottom end is hinged to a lower slider. The lower slider slides along the front and rear ends of the carriage and is connected to the outside of the workbench. Fixed tubes are fixed on the other two opposite sides of the workbench. Fixed bolts are threaded onto the fixed tubes. One end of the fixed bolt is provided with a rotating nut. Telescopic tubes are fixedly connected to the bottom of the front and rear ends of the fence. The telescopic tubes slide up and down and are connected to the upper end of the fixed tubes. The telescopic tubes have a set of first threaded grooves from top to bottom for the other end of the fixed bolts to connect. A connecting plate is connected at the middle hinge of the first connecting rod and the second connecting rod, and the first threaded hole is provided on the connecting plate.

9. The multi-functional aerial platform vehicle of claim 1, wherein: The sunshade includes an umbrella body, a fixing base, and a locking bolt. The upper end of the fixing base is connected to a connector for the lower end of the umbrella body to pass through. A third threaded hole is opened on one side of the connector, and a second threaded groove is opened on one side of the lower end of the umbrella body. One end of the locking bolt passes through the third threaded hole and abuts against the second threaded groove, and the other end of the locking bolt is connected to a rotating handle. Three support rods are evenly hinged around the lower end of the fixing base. The bottom of the support rods is connected to an anti-slip pad and a positioning post. The workbench has a positioning groove for the positioning post to pass through, and a threaded post part is provided in the middle of the bottom of the fixing base, which is threaded to the mounting groove.

10. The multi-functional aerial platform vehicle of claim 9, wherein: The storage display stand is T-shaped. The groove is formed at the horizontal end of the storage display stand. The bottom of the vertical end of the storage display stand is provided with a threaded block. The threaded block is threadedly connected to the mounting groove. The horizontal end of the storage display stand is detachably connected with a flip cover for sealing the groove. The horizontal end of the storage display stand is also provided with a storage groove. The storage groove is provided with a sealing plug for sealing the mounting groove. The bottom of the sealing plug is provided with an external thread groove that matches the mounting groove. The top of the sealing plug is hinged with a rotating pull ring.

Images