An aerial work platform

Abstract

The utility model discloses a kind of aerial work platforms, including column assembly, connecting crossbeam and platform assembly. Two groups of column mechanism being arranged at intervals in column assembly, by vertical support column, first crossbeam support seat of upward opening C-shaped groove structure and first inclined strut are constituted, enhance structural stability. Connecting crossbeam end portion is placed in first crossbeam support seat, by bolt fixed;Several groups of column unit are distributed at intervals, and the connecting crossbeam of adjacent unit top end is screw-connected with platform assembly. Column assembly, connecting crossbeam, platform assembly are all used aluminum alloy material, with light weight and high strength characteristics, reduce equipment deadweight, facilitate handling and installation, and improve corrosion resistance, prolong service life. The aerial work platform structure is stable, dismounting is convenient, applicable to a variety of aerial work scene.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment operation platforms, and in particular to an aluminum alloy aerial work platform for mechanical equipment. Background Technology

[0002] Aerial work platforms for machinery are widely used in machining and manufacturing facilities. They are mainly used for workers to walk on high-altitude machinery for inspection and maintenance, and can also be used to place machinery that needs to be installed at a high position.

[0003] In existing technical solutions, the aerial work platforms for mechanical equipment are mostly made of concrete or steel through on-site welding. The platform surface is covered with grating plates and painted to give the entire work platform a certain degree of corrosion resistance. Finally, stairs and guardrails (5) are provided so that workers can enter the work platform and have a certain degree of protection.

[0004] The existing technology has the following shortcomings:

[0005] 1. Aerial work platforms made of concrete require a large amount of building materials, resulting in high construction costs. Furthermore, the specifications and shapes of the concrete are designed and cast based on existing machinery and equipment, forming a single piece. This makes them exclusive aerial work platforms for existing machinery and equipment, and they cannot be used with later updated or upgraded machinery and equipment, or other types of machinery and equipment.

[0006] 2. Aerial work platforms made of steel often use welding connection technology, which involves a large amount of welding work and high welding costs. In addition, the welding process makes it impossible to disassemble or replace damaged parts, increasing maintenance costs. Utility Model Content

[0007] In view of this, the present invention discloses a welding fixture for the rear floor side beam of an automobile, the specific solution of which is as follows:

[0008] An aerial work platform includes a column assembly, a connecting beam, and a platform assembly;

[0009] The column assembly includes a column unit, which includes two sets of spaced-apart column mechanisms. Each column mechanism includes a supporting column, a first crossbeam support seat, and a first diagonal brace. The supporting column is vertically arranged, and the first crossbeam support seat is a C-shaped groove structure with an upward opening. One end of the first crossbeam support seat is fixedly connected to the upper end of the supporting column, and the other end of the first crossbeam support seat is connected to the middle of the supporting column with a first diagonal brace.

[0010] A connecting beam connects the two sets of column mechanisms. The end of the connecting beam is located in the first beam support of the column mechanism. Bolts pass through the side wall of the first beam support and the connecting beam to fix them together.

[0011] The column unit is provided in several groups and adjacent groups of column units are spaced apart. A platform assembly is connected between the connecting beams provided at the top of the adjacent groups of column units. The end of the platform assembly is screwed to the connecting beam.

[0012] The column assembly, connecting beam, and platform assembly are all made of aluminum alloy.

[0013] As a supplement to the technical solution of this utility model, the column mechanism also includes a base plate and a column plate reinforcing rib. The base plate is disposed at the lower end of the supporting column and has a through hole for fixing the column mechanism with anchor bolts. The column plate reinforcing rib is connected between the base plate and the supporting column.

[0014] As a supplement to the technical solution of this utility model, the connecting beam includes a first connecting beam and a second connecting beam. The first connecting beam is disposed on the column unit located at the end of the aerial work platform, and the second connecting beam is disposed on the column unit not at the end.

[0015] The first connecting beam includes a first vertical square tube and a first horizontal square tube. The first horizontal square tube is disposed on the side wall of the first vertical square tube, and the first vertical square tube and the first horizontal square tube are spliced ​​together to form an "L" shaped structure.

[0016] The second connecting beam includes a second vertical square tube and a second horizontal square tube. The second vertical square tube is set on the top wall of the second beam square tube. The second vertical square tube and the second horizontal square tube are spliced ​​together to form a "T" structure. A reinforcing rib is provided between the top wall and the bottom wall of the second horizontal square tube.

[0017] Platform assemblies are provided between the first connecting beam and the second connecting beam, as well as between two adjacent sets of second connecting beams;

[0018] One end of the platform assembly is mounted on the first horizontal square tube of the first connecting beam or the second horizontal square tube of the second beam, and is screwed to the first vertical square tube of the first connecting beam or the second vertical square tube of the second connecting beam.

[0019] The structure connecting the second connecting beam to the two adjacent platform assemblies is as follows: the end of the platform assembly on the left is mounted on the first transverse square tube on the left side of the second vertical square tube, and the end of the platform assembly on the right is mounted on the first transverse square tube on the right side of the second vertical square tube. The end of the platform assembly on the left, the second vertical square tube, and the end of the platform assembly on the right are fixed together by a set of bolts.

[0020] As a supplement to the technical solution of this utility model, the two sets of column mechanisms near the same side of the two adjacent sets of column units are also provided with a second crossbeam support seat and a second diagonal brace. The second crossbeam support seat is set at the upper end of the support column and is set perpendicularly to the first crossbeam support seat. The middle part of the support column is connected to the second crossbeam support seat by a second diagonal brace. A second connecting crossbeam is provided between the two sets of column mechanisms, and several sets of column units are evenly arranged along the length direction of the second crossbeam support seat perpendicular to the length direction of the second crossbeam support seat.

[0021] As a supplement to the technical solution of this utility model, the platform assembly includes a platform unit, which includes a platform plate and a platform frame. The platform frame includes a first crossbeam, a second crossbeam, a third crossbeam, end longitudinal beams, and connecting longitudinal beams. The first crossbeam and the second crossbeam are arranged in parallel and spaced apart from each other. There are two sets of end longitudinal beams. The ends of the first crossbeam and the second crossbeam are connected by end longitudinal beams. The third crossbeam is arranged between the first crossbeam and the second crossbeam, and the end of the third crossbeam is connected to the middle of the end longitudinal beams. Connecting longitudinal beams are connected between the first crossbeam and the third crossbeam, and between the second crossbeam and the third crossbeam. The platform plate is arranged on the platform frame. The end longitudinal beams of the platform unit are erected on the first transverse square tube of the first connecting crossbeam or the second transverse square tube of the second connecting crossbeam, and are connected to the first vertical square tube of the first connecting crossbeam or the second vertical square tube of the second crossbeam by screws.

[0022] As a supplement to the technical solution of this utility model, the first vertical square tube side surface of the first connecting beam and the second vertical square tube side surface of the second connecting beam are provided with insertion blocks, and the end longitudinal beam side surface of the platform unit is provided with insertion grooves for insertion of the insertion blocks. The insertion grooves of the platform unit are inserted into the insertion blocks on the first connecting beam or the insertion blocks on the second connecting beam.

[0023] As a supplement to the technical solution of this utility model, the platform assembly includes several groups of platform units, with two adjacent platform units arranged adjacent to each other.

[0024] As a supplement to the technical solution of this utility model, the platform unit also includes a disassembly handle. The upper surfaces of the first and second crossbeams of the platform unit are provided with screw holes. The disassembly handle is L-shaped, and the outer circumferential surface of the first side of the disassembly handle is provided with threads. The first side of the disassembly handle is screwed into the threaded holes on the upper surfaces of the first and second crossbeams.

[0025] As a supplement to the technical solution of this utility model, a guardrail is also included, which is vertically arranged on the platform assembly and located at the end of the platform unit.

[0026] As a supplement to the technical solution of this utility model, it also includes a ladder assembly, which includes a ladder and a ladder guard cage. The ladder guard cage is disposed on the ladder, and the ladder assembly is disposed at the edge of the platform assembly. The ladder is connected to the first crossbeam / second crossbeam of the platform unit by bolts.

[0027] Beneficial Effects: The aerial work platform provided by this utility model uses a new type of aluminum alloy material, which has excellent environmental adaptability and good corrosion resistance. It can not only significantly extend the service life and reduce maintenance costs, but also facilitate handling and installation due to its lightweight material, effectively reducing installation costs. Its column assembly, connecting beam, and platform assembly adopt a standardized modular design, which greatly shortens the production cycle and reduces production costs. It is also highly adaptable and can be adapted to mechanical equipment of different specifications and shapes. The components are connected by bolts, eliminating the need for on-site welding, which reduces welding costs, improves installation efficiency, and facilitates free replacement and repair of damaged parts, further saving maintenance costs. The platform plate on the surface of the platform assembly can prevent items from falling and eliminate safety hazards. The detachable handles facilitate assembly and disassembly. At the same time, the equipped guardrail and ladder assembly can effectively protect personnel safety and improve operational safety. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0029] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0030] Figure 3 This is a partial structural diagram of the column assembly of this utility model.

[0031] Figure 4 This is a schematic diagram of the column unit structure of this utility model.

[0032] Figure 5 This is a partial structural diagram of the column assembly of this utility model.

[0033] Figure 6 This is a partial structural diagram of the column assembly of this utility model.

[0034] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point A in the middle.

[0035] Figure 8 This is a schematic diagram of the platform unit structure of this utility model.

[0036] Figure 9 This is a schematic diagram of the platform framework structure of this utility model.

[0037] Figure 10 This is a schematic diagram of the assembly structure of the platform unit and the second connecting beam of this utility model.

[0038] Figure 11 This is a schematic diagram of the first connecting beam structure of this utility model.

[0039] Figure 12 This is a schematic diagram of the second connecting beam structure of this utility model.

[0040] Figure 13 This is a schematic diagram of the ladder assembly structure of this utility model.

[0041] In the diagram: 1. Column assembly, 2. First connecting beam, 3. Second connecting beam, 4. Platform assembly, 5. Guardrail, 6. Ladder assembly, 7. Support column, 8. First beam support seat, 9. First diagonal brace, 10. Base plate, 11. Column plate reinforcing rib, 12. Second beam support seat, 13. Second diagonal brace, 14. First vertical square tube, 15. First horizontal square tube, 16. Second vertical square tube, 17. Second horizontal square tube, 18. Platform plate, 19. Platform frame, 20. First beam, 21. Second beam, 22. Third beam, 23. End longitudinal beam, 24. Connecting longitudinal beam, 25. Insert block, 26. Insert groove, 27. Ladder, 28. Ladder guard cage, 29. Disassembly handle, 30. Column mechanism, 31. Platform unit. Detailed Implementation

[0042] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] like Figures 1 to 13 As shown, an aerial work platform is made entirely of aluminum alloy and includes a column assembly 1, a connecting beam, and a platform assembly 4.

[0045] The column unit includes two sets of spaced-apart column mechanisms 30. Each column mechanism 30 includes a supporting column 7, a first crossbeam support seat 8, and a first diagonal brace 9. The supporting column 7 is vertically arranged. The first crossbeam support seat 8 is a C-shaped groove structure with an upward opening. One end of the first crossbeam support seat 8 is fixedly connected to the upper end of the supporting column 7, and the other end of the first crossbeam support seat 8 is connected to the middle of the supporting column 7 via the first diagonal brace 9. The first diagonal brace 9 supports the first crossbeam support seat 8, ensuring its structural stability. Reinforcing ribs are provided at the upper end of the supporting column 7 and the lower end of the first crossbeam support seat 8 to further improve the connection stability between the supporting column 7 and the first crossbeam support seat 8.

[0046] A connecting beam connects the two sets of column mechanisms 30. The end of the connecting beam is located within the first beam support 8 of the column mechanism 30, specifically within the groove of the first beam support 8. Bolts pass through the side wall of the first beam support 8 and the connecting beam, fixing the two together. The column mechanism 30 is used to support the connecting beam.

[0047] The column unit is provided in several groups and adjacent groups of column units are spaced apart. A platform assembly 4 is connected between the connecting beams provided at the top of the adjacent groups of column units. The end of the platform assembly 4 is screwed to the connecting beam.

[0048] The column assembly 1, connecting beam, and platform assembly 4 are all made of aluminum alloy. The supporting column 7 and the first diagonal brace 9 are both square tubular structures.

[0049] With the above configuration, the various structural assemblies are connected by bolts, replacing the traditional methods of concrete pouring or steel welding, which facilitates assembly and disassembly. Simultaneously, the design of the first crossbeam support 8 on the column unit increases the connection area with the connecting crossbeam, improving the structural stability between the connecting crossbeam and the column mechanism 30.

[0050] Preferably, a reinforcing beam connects the supporting columns 7 of the column mechanism 30 located on the same side of two adjacent sets of column units.

[0051] As a preferred embodiment of this utility model, the column mechanism 30 further includes a base plate 10 and a column plate reinforcing rib 11. The base plate 10 is disposed at the lower end of the supporting column 7 and has a through hole for fixing the column mechanism 30 with anchor bolts. The column plate reinforcing rib 11 connects the base plate 10 and the supporting column 7 to improve the connection stability between the base plate 10 and the supporting column 7.

[0052] As a preferred technical solution of this utility model, the connecting beam includes a first connecting beam 2 and a second connecting beam 3. The first connecting beam 2 is disposed on the column unit located at the end of the aerial work platform, and the second connecting beam 3 is disposed on the column unit not at the end.

[0053] The first connecting beam 2 includes a first vertical square tube 14 and a first horizontal square tube 15. The first horizontal square tube 15 is disposed on the side wall of the first vertical square tube 14, so that the first vertical square tube 14 and the first horizontal square tube 15 are spliced ​​together to form an "L" shaped structure.

[0054] The second connecting beam 3 includes a second vertical square tube 16 and a second horizontal square tube 17. The second vertical square tube 16 is disposed on the top wall of the square tube of the second beam 21, so that the second vertical square tube 16 and the second horizontal square tube 17 are spliced ​​to form an inverted "T" structure. A reinforcing rib is provided between the top wall and the bottom wall of the second horizontal square tube 17.

[0055] The first vertical square tube 14 and the first horizontal square tube 15 of the first connecting beam 2, as well as the second vertical square tube 16 and the second horizontal square tube 17 of the second connecting beam 3, are all integrally formed by aluminum alloy extrusion process, replacing the traditional welding connection method. This ensures structural stability, saves splicing process, and improves assembly efficiency.

[0056] The platform assembly 4 between the first connecting beam 2 and the second connecting beam 3 is connected to the first connecting beam 2 and the second connecting beam 3 in the following manner: one end of the platform assembly 4 rests on the first horizontal square tube 15 of the first connecting beam 2 and contacts the first vertical square tube 14 of the first connecting beam 2, and is connected by a screw thread. The other end of the platform assembly 4 rests on the second horizontal square tube 17 of the second connecting beam 3 and is connected by a screw thread to the second vertical square tube 16 of the second connecting beam 3.

[0057] The structure connecting the second connecting beam 3 on the column unit located at a non-end position to the two adjacent platform assemblies 4 is as follows: Figure 7 , Figure 10 As shown, the end of the platform assembly 4 on the left is mounted on the first horizontal square tube 15 located to the left of the second vertical square tube 16, and the end of the platform assembly 4 on the right is mounted on the first horizontal square tube 15 located to the right of the second vertical square tube 16. The end of the platform assembly 4 on the left, the second vertical square tube 16, and the end of the platform assembly 4 on the right are fixed together by a set of bolts.

[0058] The above settings enable the platform assembly 4 to be connected and fixed to the first connecting beam 2 and the second connecting beam 3 by bolts, which facilitates disassembly.

[0059] In the above technical solution, the aerial work platforms can only be evenly arranged along one length direction. When it is necessary to arrange them perpendicular to the original length direction, the above technical solution cannot be implemented. For example, if the original length direction is longitudinal, the above technical solution cannot be implemented when it is necessary to build the aerial work platforms in a lateral direction. Figure 3 , Figure 5 As shown, in a preferred embodiment of this utility model, the two sets of column mechanisms 30 near the same side of the adjacent sets of column units are further provided with a second crossbeam support seat 12 and a second diagonal brace 13. The second crossbeam support seat 12 is located at the upper end of the supporting column 7 and is perpendicular to the first crossbeam support seat 8. The second diagonal brace 13 connects the middle part of the supporting column 7 and the second crossbeam support seat 12. A second connecting crossbeam 3 is provided between the two sets of column mechanisms 30. Through the above arrangement, several sets of column units are evenly arranged along the length direction perpendicular to the second crossbeam support seat 12, achieving the effect of horizontal and vertical arrangement of the aerial work platform. The second crossbeam support seat 12 has the same structure as the first crossbeam support seat 8.

[0060] As a preferred technical solution of this utility model, the platform assembly 4 includes a platform unit 31, which includes a platform plate 18 and a platform frame 19. The platform frame 19 includes a first crossbeam 20, a second crossbeam 21, a third crossbeam 22, an end longitudinal beam 23, and a connecting longitudinal beam 24. The first crossbeam 20 and the second crossbeam 21 are arranged in parallel and spaced apart from each other. The end longitudinal beam 23 is provided in two sets. The end longitudinal beam 23 is connected to the end of the first crossbeam 20 and the second crossbeam 21. The third crossbeam 22 is arranged between the first crossbeam 20 and the second crossbeam 21, and the end of the third crossbeam 22 is connected to the middle of the end longitudinal beam 23. The connecting longitudinal beam 24 is connected between the first crossbeam 20 and the third crossbeam 22, and between the second crossbeam 21 and the third crossbeam 22. Through the above arrangement, a platform frame 19 with a grid pattern is spliced ​​together. The platform plate 18 is installed on the platform frame 19. The two ends of the platform plate 18 in the longitudinal direction are connected to the first crossbeam 20 and the third crossbeam 22 respectively, and the two ends of the platform plate 18 in the transverse direction are connected to two sets of end longitudinal beams 23 respectively. This allows the platform plate 18 to block the grid-like platform frame 19, solving the technical problem that items are prone to falling off traditional grid-like steel aerial work platforms, which poses a safety hazard.

[0061] The end longitudinal beam 23 of the platform unit 31 is mounted on the first transverse square tube 15 of the first connecting beam 2 or the second transverse square tube 17 of the second connecting beam 3, and is connected to the first vertical square tube 14 of the first connecting beam 2 or the second vertical square tube 16 of the second beam 21 by screwing.

[0062] As a preferred technical solution of this utility model, the first vertical square tube 14 of the first connecting beam 2 and the second vertical square tube 16 of the second connecting beam 3 are provided with insertion blocks 25. The end longitudinal beam 23 of the platform unit 31 is provided with insertion grooves 26 for insertion of the insertion blocks 25. The insertion grooves 26 of the platform unit 31 are inserted into the insertion blocks 25 on the first connecting beam 2 or the second connecting beam 3 to improve the assembly accuracy between the platform unit 31 and the first connecting beam 2 and the second connecting beam 3.

[0063] As a preferred embodiment of this utility model, the end longitudinal beam 23 of the platform unit 31 located on the left side of the second connecting beam 3, the second vertical square tube 16 of the second connecting beam 3, and the end longitudinal beam 23 of the platform unit 31 located on the right side of the second connecting beam 3 are connected and fixed by a set of bolts. Specifically, the bolts pass through the end longitudinal beam 23 of the platform unit 31 located on the left side of the second connecting beam 3, the second vertical square tube 16 of the second connecting beam 3, and the end longitudinal beam 23 of the platform unit 31 located on the right side of the second connecting beam 3 in sequence, connecting and fixing the three together.

[0064] As a preferred technical solution of this utility model, the platform assembly 4 includes several groups of platform units 31, with two adjacent platform units 31 arranged adjacent to each other, and the arrangement direction of the platform units 31 is the same as the length direction of the first connecting beam 2 / second connecting beam 3.

[0065] As a preferred technical solution of this utility model, the platform unit 31 further includes a disassembly handle 29. The disassembly handle 29 is an "L"-shaped round bar, including a first side and a second side arranged perpendicularly to each other. The outer surface of the first side is machined with threads. The first side of the disassembly handle 29 is screwed into the threaded hole on the upper end face of the first crossbeam 20 and the second crossbeam 21 so that the platform unit 31 can be manually moved. After the platform unit 31 is assembled, the disassembly handle 29 can be disassembled.

[0066] As a preferred technical solution of this utility model, it also includes a guardrail 5, which is vertically arranged on the platform assembly 4 and located at the end of the platform unit 31, for preventing people or objects from falling from the edge of the platform assembly 4.

[0067] As a preferred technical solution of this utility model, it also includes a ladder assembly 6, which includes a ladder 27 and a ladder cage 28. The ladder cage 28 is disposed on the ladder 27. The ladder assembly 6 is disposed at the edge of the platform assembly 4, and the ladder 27 is connected to the first crossbeam 20 / second crossbeam 21 of the platform unit 31 by screw connection.

[0068] In summary, the aerial work platform provided by this utility model uses a new type of aluminum alloy material, which has strong environmental adaptability and good corrosion resistance. This not only extends the service life of the aerial work platform and reduces maintenance costs, but also makes it lightweight, facilitating transportation and installation, effectively reducing installation costs. The column assembly 1, connecting beam, and platform assembly 4 all adopt a standardized modular design, greatly reducing their production cycle and manufacturing time, effectively lowering production costs. Furthermore, due to the standardized modular design, it is applicable to mechanical equipment of different specifications and shapes, demonstrating strong applicability. All components are connected by bolts, eliminating the need for welding on-site, greatly reducing welding costs, improving installation efficiency, and allowing for easy replacement and repair of damaged parts, reducing maintenance costs. The platform plate 18 on the surface of the platform assembly 4 effectively prevents objects from falling and injuring equipment or nearby personnel, eliminating safety hazards. The structure also features a detachable handle 29 for easy assembly and disassembly.

[0069] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the protection scope of the present invention.

Claims

1. An aerial work platform, characterized in that, Includes column assembly (1), connecting beam, and platform assembly (4); The column assembly (1) includes a column unit, which includes two sets of column mechanisms (30) spaced apart. The column mechanism (30) includes a support column (7), a first crossbeam support seat (8), and a first diagonal brace (9). The support column (7) is vertically arranged, and the first crossbeam support seat (8) is a C-shaped groove structure with an upward opening. One end of the first crossbeam support seat (8) is fixedly connected to the upper end of the support column (7), and the other end of the first crossbeam support seat (8) is connected to the middle of the support column (7) with a first diagonal brace (9). A connecting beam connects the two sets of column mechanisms (30). The end of the connecting beam is located in the first beam support seat (8) of the column mechanism (30). Bolts pass through the side wall of the first beam support seat (8) and the connecting beam to fix the two together. The column unit is provided in several groups and adjacent groups of column units are spaced apart. A platform assembly (4) is connected between the connecting beams provided at the top of the adjacent groups of column units. The end of the platform assembly (4) is screwed to the connecting beam. The column assembly (1), connecting beam, and platform assembly (4) are all made of aluminum alloy.

2. The aerial work platform according to claim 1, characterized in that, The column mechanism (30) also includes a base plate (10) and a column plate reinforcing rib (11). The base plate (10) is located at the lower end of the supporting column (7) and has through holes for anchor bolts to fix the column mechanism (30). The column plate reinforcing rib (11) is connected between the base plate (10) and the supporting column (7).

3. The aerial work platform according to claim 1, characterized in that, The connecting beam includes a first connecting beam (2) and a second connecting beam (3). The first connecting beam (2) is installed on the column unit located at the end of the aerial work platform, and the second connecting beam (3) is installed on the column unit not at the end. The first connecting beam (2) includes a first vertical square tube (14) and a first horizontal square tube (15). The first horizontal square tube (15) is disposed on the side wall of the first vertical square tube (14). The first vertical square tube (14) and the first horizontal square tube (15) are spliced ​​together to form an "L" shaped structure. The second connecting beam (3) includes a second vertical square tube (16) and a second horizontal square tube (17). The second vertical square tube (16) is set on the top wall of the square tube of the second beam (21). The second vertical square tube (16) and the second horizontal square tube (17) are spliced ​​together to form a "T" structure. The top wall and bottom wall of the second horizontal square tube (17) are provided with reinforcing ribs. Platform assemblies (4) are provided between the first connecting beam (2) and the second connecting beam (3) as well as between two adjacent sets of second connecting beams (3); One end of the platform assembly (4) is mounted on the first horizontal square tube (15) of the first connecting beam (2) or on the second square tube of the second beam (21), and is screwed to the first vertical square tube (14) of the first connecting beam (2) or the second vertical square tube (16) of the second connecting beam (3); The structure connecting the second connecting beam (3) to the two adjacent platform assemblies (4) is such that the end of the platform assembly (4) on the left is mounted on the first horizontal square tube (15) on the left side of the second vertical square tube (16), and the end of the platform assembly (4) on the right is mounted on the first horizontal square tube (15) on the right side of the second vertical square tube (16). The end of the platform assembly (4) on the left, the second vertical square tube (16) and the end of the platform assembly (4) on the right are fixed by a set of bolts.

4. The aerial work platform according to claim 3, characterized in that, The two sets of column mechanisms (30) of the two adjacent sets of column units are also provided with a second crossbeam support seat (12) and a second diagonal brace (13). The second crossbeam support seat (12) is located at the upper end of the support column (7) and is set perpendicular to the first crossbeam support seat (8). The middle part of the support column (7) is connected to the second crossbeam support seat (12) by a second diagonal brace (13). A second connecting crossbeam (3) is provided between the two sets of column mechanisms (30). Several sets of column units are evenly arranged along the length direction of the second crossbeam support seat (12) set on the second crossbeam support seat (12) perpendicular to the length direction of the second crossbeam support seat (12).

5. The aerial work platform according to claim 3, characterized in that, The platform assembly (4) includes a platform unit (31), which includes a platform plate (18) and a platform frame (19). The platform frame (19) includes a first crossbeam (20), a second crossbeam (21), a third crossbeam (22), an end longitudinal beam (23), and a connecting longitudinal beam (24). The first crossbeam (20) and the second crossbeam (21) are arranged in parallel and spaced apart from each other. The end longitudinal beam (23) is provided in two sets. The end longitudinal beam (23) is connected to the end of the first crossbeam (20) and the second crossbeam (21). The third crossbeam (22) is located between the first crossbeam (20) and the second crossbeam (21), and the third crossbeam (24) is located between the first crossbeam (20) and the second crossbeam (21). The end of the crossbeam (22) is connected to the middle of the end longitudinal beam (23). There are connecting longitudinal beams (24) between the first crossbeam (20) and the third crossbeam (22), and between the second crossbeam (21) and the third crossbeam (22). The platform plate (18) is set on the platform frame (19). The end longitudinal beam (23) of the platform unit (31) is erected on the first transverse square tube (15) of the first connecting crossbeam (2) or the second transverse square tube (17) of the second connecting crossbeam (3), and is connected to the first vertical square tube (14) of the first connecting crossbeam (2) or the second vertical square tube (16) of the second crossbeam (21) by screwing.

6. The aerial work platform according to claim 5, characterized in that, Insertion blocks (25) are provided on the side surface of the first vertical square tube (14) of the first connecting beam (2) and the side surface of the second vertical square tube (16) of the second connecting beam (3). Insertion grooves (26) for inserting the insertion blocks (25) are provided on the side surface of the end longitudinal beam (23) of the platform unit (31). The insertion grooves (26) of the platform unit (31) are inserted into the insertion blocks (25) on the first connecting beam (2) or the insertion blocks (25) on the second connecting beam (3).

7. The aerial work platform according to claim 5, characterized in that, The platform assembly (4) includes several sets of platform units (31), with two adjacent platform units (31) arranged adjacent to each other.

8. The aerial work platform according to claim 5, characterized in that, The platform unit (31) also includes a disassembly handle (29). The upper surfaces of the first crossbeam (20) and the second crossbeam (21) of the platform unit (31) are provided with screw holes. The disassembly handle (29) is L-shaped. The outer peripheral surface of the first side of the disassembly handle (29) is provided with threads. The first side of the disassembly handle (29) is screwed into the threaded holes on the upper surfaces of the first crossbeam (20) and the second crossbeam (21).

9. The aerial work platform according to claim 1, characterized in that, It also includes a guardrail (5), which is vertically disposed on the platform assembly (4) and located at the end of the platform unit (31).

10. A high-altitude work platform according to claim 1, characterized in that, It also includes a ladder assembly (6), which includes a ladder (27) and a ladder cage (28). The ladder cage (28) is mounted on the ladder (27). The ladder assembly (6) is located at the edge of the platform assembly (4), and the ladder (27) is connected to the first crossbeam (20) / second crossbeam (21) of the platform unit (31) by screws.

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