A construction platform
By designing a detachable and assembleable construction operation platform, the problems of insufficient safety and low efficiency in the installation and construction of precast steel structure components were solved, realizing efficient and safe high-altitude operations and reducing reliance on large machinery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROAD & BRIDGE INT CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-05
AI Technical Summary
In existing technologies, the installation and construction of prefabricated steel structure components suffer from insufficient safety, low efficiency, high dependence on machinery, and the risk of personnel being stranded, as well as inadequate protection of the components.
A construction operation platform is provided, comprising a first support frame, a second support frame, a position adjustment structure, a first workbench, and a second workbench. Through detachable assembly and a position adjustment structure, the platform achieves stability and convenience, reduces the risks of working at heights, and reduces reliance on large machinery.
It improved construction efficiency, reduced the risks of working at heights, reduced reliance on large machinery, provided a safe and reliable working environment, and lowered construction costs.
Smart Images

Figure CN224326010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction technology of prefabricated steel structure components in civil engineering, and in particular to a construction operation platform. Background Technology
[0002] During the installation of precast steel structure components, construction workers typically need to work at heights, performing tasks such as welding, bolting, and alignment. Traditional methods of working at height mainly rely on scaffolding, aerial work platforms, or temporary work platforms. However, these methods have the following drawbacks: First, insufficient safety: Traditional scaffolding or temporary platforms have poor stability and are prone to swaying or collapsing during high-altitude operations. Furthermore, limited protective measures pose a risk of falls for workers. Second, low efficiency: Erecting scaffolding or adjusting the position of aerial work platforms is time-consuming, affecting construction progress. Moreover, site limitations make it difficult to quickly adapt to different height requirements. Third, high dependence on machinery: Frequent use of cranes or lifting equipment not only increases costs but may also lead to excessive machinery occupancy time, impacting overall construction efficiency. Fourth, risk of personnel being stranded: During high-altitude operations, workers are exposed to unprotected environments for extended periods, increasing the probability of fatigue and accidents. Fifth, insufficient component protection: Traditional methods may result in steel structure components being damaged or impacted during installation due to improper operation or platform instability.
[0003] While some existing technologies offer aerial work platforms or safety devices to address the aforementioned issues, their applicability, convenience, and safety still require improvement. Therefore, there is an urgent need for a structurally stable, easy-to-install, and reliable construction operation platform to reduce the risks of working at heights, improve construction efficiency, and decrease reliance on heavy machinery. The construction operation platform proposed in this invention aims to solve the aforementioned technical challenges and provide a superior operational solution for steel structure installation. Utility Model Content
[0004] The purpose of this invention is to provide a construction operation platform that is structurally stable, easy to install, and safe and reliable, so as to solve the problems existing in the prior art, reduce the risks of high-altitude operations, improve construction efficiency, and reduce reliance on large machinery.
[0005] To achieve the above objectives, this utility model provides the following solution:
[0006] This utility model provides a construction operation platform, including: a first support frame, a second support frame, a position adjustment structure, a first workbench, and a second workbench. The position adjustment structure is connected to the first support frame and the second support frame to form a channel for a column to pass through. The position adjustment structure is used to adjust the clamping degree of the first support frame and the second support frame on the column. The first workbench is connected to the first support frame through a first connecting structure, and the second workbench is connected to the second support frame through a second connecting structure. The first workbench and the second workbench are used to place items or for construction personnel to stand and walk.
[0007] Preferably, the position adjustment structure includes an adjustment plate, sliding legs, fastening bolts, and an adjustment knob. The adjustment plate has a threaded hole in the middle. The adjustment knob includes a rotating handle and a threaded rod connected to the rotating handle. The threaded rod is connected to the threaded hole. The rotating handle and the sliding legs are located on opposite sides of the adjustment plate. One end of each sliding leg is fixed to the adjustment plate, and the other end of each sliding leg is threaded to the fastening bolt.
[0008] Preferably, the first support frame includes a first upright plate, and the second support frame includes a second upright plate. Both the first and second upright plates are provided with reserved holes corresponding to the number and position of the sliding legs. The sliding legs pass through the reserved holes on the first and second upright plates. The end of the threaded rod away from the rotating handle abuts against the first upright plate, and the fastening bolt abuts against the side of the second upright plate away from the first upright plate. The fastening bolt and the threaded rod clamp the first and second upright plates together.
[0009] Preferably, both the first connection structure and the second connection structure include a first connector and a second connector. The first connector is disposed on the first upright plate and the second upright plate, and the second connector is disposed on the first worktable and the second worktable. The first connector of the first upright plate and the second connector of the first worktable are connected by a pin, and the first connector of the second upright plate and the second connector of the second worktable are connected by a pin.
[0010] Preferably, the present invention further includes a first fixed shaft, a fixed block, and a connecting belt. The first fixed shaft is provided on both the first worktable and the second worktable. The second connector of the first worktable is rotatably connected to the first worktable through the first fixed shaft. The second connector of the second worktable is rotatably connected to the second worktable through the first fixed shaft. The fixed block is provided on both the first worktable and the second worktable. The second connector of the first worktable is connected to the fixed block of the first worktable through the connecting belt. The second connector of the second worktable is connected to the fixed block of the second worktable through the connecting belt.
[0011] Preferably, the present invention further includes a second fixed shaft and a side plate. The first worktable and / or the second worktable are provided with a second fixed shaft for connecting the side plate. The side plate is completely connected to the first worktable or completely connected to the second worktable, or part of the side plate is connected to the first worktable and the other part of the side plate is connected to the second worktable.
[0012] Preferably, the first fixed shaft and the second fixed shaft are integrally formed.
[0013] Preferably, the present invention further includes a reinforcing plate, which is disposed between the first upright plate and the second upright plate and is connected to the first upright plate and the second upright plate respectively.
[0014] Preferably, it also includes a guardrail structure, which includes vertical bars, limiting blocks, horizontal bars, and buckles. The horizontal bars are perpendicular to the vertical bars and are connected to each other by the buckles. Each vertical bar is provided with a limiting block below it. The first workbench, the second workbench, and the side plate are all provided with mounting holes for inserting the vertical bars. The limiting blocks are used to adjust the depth of the vertical bars inserted into the mounting holes.
[0015] Preferably, the first support frame further includes a first top plate, which is perpendicularly connected to the first upright plate, and two first inclined plates are provided at the connection point. The second support frame further includes a second top plate, which is perpendicularly connected to the second upright plate, and two second inclined plates are provided at the connection point. The first top plate and the second top plate are used to place material components.
[0016] The present invention achieves the following technical advantages over the prior art:
[0017] First, the first support frame, second support frame, position adjustment structure, first worktable, and second worktable in this utility model are detachable and easy to assemble, making transportation convenient.
[0018] Secondly, the installation position of the construction operation platform of this utility model is adjustable, the installation is convenient, and there are no restrictions on the site, environment, or time of use, making it highly applicable.
[0019] Third, the construction operation platform of this utility model has a stable and reliable structure, providing a platform for construction workers to stand, work, and bear force, as well as safety protection measures, reducing the risk of accidental injury to workers working at heights.
[0020] Fourth, the construction operation platform of this utility model eliminates the need for construction workers to be suspended in the air for extended periods by cranes, reducing reliance on large machinery, lowering construction costs, and improving the safety of high-altitude operations. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of an embodiment of the present utility model;
[0023] Figure 2 for Figure 1 A diagram from another perspective;
[0024] Figure 3 This is a schematic diagram of the position adjustment structure in an embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram of the adjusting plate, sliding leg, and fastening bolt in an embodiment of this utility model;
[0026] Figure 5 This is a schematic diagram of the position adjustment structure from another perspective in an embodiment of this utility model;
[0027] Figure 6 This is a schematic diagram showing the connection between the position adjustment structure and the first support frame and the second support frame in an embodiment of this utility model;
[0028] Figure 7 This is a schematic diagram of the first workbench and the second workbench in an embodiment of this utility model;
[0029] Figure 8 This is a schematic diagram showing the connection between the first workbench and the second workbench in an embodiment of this utility model;
[0030] Figure 9 This is a schematic diagram of the guardrail structure in an embodiment of this utility model;
[0031] Figure 10 This is a schematic diagram of an embodiment of the present utility model;
[0032] Figure 11 This is a schematic diagram of the present invention installed on a column according to an embodiment;
[0033] The components include: 1. First support frame; 2. Second support frame; 3. Position adjustment structure; 4. First worktable; 5. Second worktable; 6. First connecting structure; 7. Second connecting structure; 8. Adjusting plate; 9. Sliding leg; 10. Fastening bolt; 11. Adjusting knob; 12. Threaded hole; 13. Rotating handle; 14. Threaded rod; 15. First upright plate; 16. Second upright plate; 17. First connector; 18. Second connector; 19. First fixed shaft; 20. Second fixed shaft; 21. Fixed block; 22. Connecting belt; 23. Side plate; 24. Reinforcing plate; 25. Guardrail structure; 26. Vertical bar; 27. Limiting block; 28. Horizontal railing; 29. Buckle; 30. Mounting port; 31. First top plate; 32. First inclined plate; 33. Second top plate; 34. Second inclined plate; 35. Limiting support; 36. Column. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] The purpose of this invention is to provide a construction operation platform that is structurally stable, easy to install, and safe and reliable, so as to solve the problems existing in the prior art, reduce the risks of high-altitude operations, improve construction efficiency, and reduce reliance on large machinery.
[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0037] Please refer to Figures 1 to 11The construction operation platform disclosed in this embodiment of the present utility model includes: a first support frame 1, a second support frame 2, a position adjustment structure 3, a first workbench 4, and a second workbench 5. The position adjustment structure 3 is connected to the first support frame 1 and the second support frame 2 to form a channel for the column 36 to pass through. The position adjustment structure 3 is used to adjust the clamping degree of the first support frame 1 and the second support frame 2 on the column 36. The first workbench 4 is connected to the first support frame 1 through a first connecting structure 6, and the second workbench 5 is connected to the second support frame 2 through a second connecting structure 7. The first workbench 4 and the second workbench 5 are used to place items or for construction personnel to stand and walk. The first support frame 1, the second support frame 2, the position adjustment structure 3, the first workbench 4, and the second workbench 5 are detachable and easy to transport. The position adjustment structure 3 can adjust the clamping degree of the first support frame 1 and the second support frame 2 on the column 36, and the position of the first support frame 1 and the second support frame 2 on the column 36 can be adjusted by the position adjustment structure 3. The first workbench 4 and the second workbench 5 are used to place items or for construction workers to stand and walk. The structure is stable, safe and reliable, reducing the risk of accidental injury to workers at height. At the same time, it allows construction workers to avoid being suspended in the air for a long time by a crane, reducing reliance on large machinery, reducing construction costs, and improving the safety of high-altitude operations.
[0038] In a preferred embodiment, the position adjustment structure 3 includes an adjustment plate 8, a sliding leg 9, a fastening bolt 10, and an adjustment knob 11. The adjustment plate 8 has a threaded hole 12 in the middle. The adjustment knob 11 includes a rotating handle 13 and a threaded rod 14 connected to the rotating handle 13. The threaded rod 14 is connected to the threaded hole 12. The rotating handle 13 and the sliding leg 9 are located on both sides of the adjustment plate 8. One end of each sliding leg 9 is fixed to the adjustment plate 8, and the other end of each sliding leg 9 is used to be threadedly connected to the fastening bolt 10.
[0039] Furthermore, each sliding leg 9 can be threadedly connected to one fastening bolt 10, or multiple fastening bolts 10, to enhance the limiting effect on the support frame.
[0040] Furthermore, a limiting support 35 is connected to the end of the threaded rod 14 away from the rotating handle 13. The limiting support 35 can be threaded to the threaded rod 14 or fixed to the end of the threaded rod 14 by welding or other means. The function of the limiting support 35 is twofold: first, to prevent the threaded rod 14 from coming out of the threaded hole 12 in the middle of the adjusting plate 8 during transportation; and second, to abut against the first support frame 1 when the first support frame 1 and the second support frame 2 clamp the column 36.
[0041] In a preferred embodiment, the first support frame 1 includes a first upright plate 15, and the second support frame 2 includes a second upright plate 16. Both the first upright plate 15 and the second upright plate 16 are provided with reserved holes corresponding to the number and position of the sliding legs 9. The sliding legs 9 pass through the reserved holes on the first upright plate 15 and the second upright plate 16. The end of the threaded rod 14 away from the rotating handle 13 abuts against the first upright plate 15, and the fastening bolt 10 abuts against the side of the second upright plate 16 away from the first upright plate 15. The fastening bolt 10 and the threaded rod 14 clamp the first upright plate 15 and the second upright plate 16 together.
[0042] The sliding leg 9 passes through the pre-drilled holes on the first upright plate 15 and the second upright plate 16 respectively. The adjusting plate 8 and the threaded rod 14 are located on the side of the first upright plate 15 away from the second upright plate 16. One end of the threaded rod 14 abuts against the first upright plate 15, and the fastening bolt 10 abuts against the side of the second upright plate 16 away from the first upright plate 15. Since the relative position between the fastening bolt 10 and the adjusting plate 8 remains unchanged, when the rotating handle 13 is turned to press the threaded rod 14 against the first upright plate 15, the first upright plate 15 will be pushed by the threaded rod 14 to move closer to the second upright plate 16. This reduces the distance between the first upright plate 15 and the second upright plate 16 to clamp the column 36. That is, the position adjustment structure 3 clamps the column 36 by reducing the distance between the first support frame 1 and the second support frame 2. Conversely, by rotating the rotating handle 13 in the opposite direction, the first support frame 1 and the second support frame 2 can be released from the column 36, thereby adjusting the installation position of the first support frame 1 and the second support frame 2 on the column 36.
[0043] In a preferred embodiment, both the first connection structure 6 and the second connection structure 7 include a first connector 17 and a second connector 18. The first connector 17 is disposed on the first upright plate 15 and the second upright plate 16, and the second connector 18 is disposed on the first worktable 4 and the second worktable 5. The first connector 17 of the first upright plate 15 and the second connector 18 of the first worktable 4 are connected by a pin, and the first connector 17 of the second upright plate 16 and the second connector 18 of the second worktable 5 are connected by a pin.
[0044] Furthermore, two rows of first connectors 17 are vertically arranged on the first support frame 1, and two rows of first connectors 17 are also vertically arranged on the second support frame 2.
[0045] Furthermore, the first upright plate 15 and the first worktable 4 can be connected by hinge or fixed together by vertical welding.
[0046] Furthermore, the second vertical plate 16 and the second worktable 5 can be connected by hinge or fixed together by vertical welding.
[0047] In a preferred embodiment, the system further includes a first fixed shaft 19, a fixed block 21, and a connecting belt 22. The first fixed shaft 19 is provided on both the first worktable 4 and the second worktable 5. The second connector 18 of the first worktable 4 is rotatably connected to the first worktable 4 via the first fixed shaft 19. The second connector 18 of the second worktable 5 is rotatably connected to the second worktable 5 via the first fixed shaft 19. The fixed block 21 is provided on both the first worktable 4 and the second worktable 5. The second connector 18 of the first worktable 4 is connected to the fixed block 21 of the first worktable 4 via the connecting belt 22. The second connector 18 of the second worktable 5 is connected to the fixed block 21 of the second worktable 5 via the connecting belt 22.
[0048] Furthermore, when the connecting strip 22 is extended to its maximum length, the second connector 18 is perpendicular to the first worktable 4 and the second worktable 5.
[0049] In a preferred embodiment, the system further includes a second fixed shaft 20 and a side plate 23. The first worktable 4 and / or the second worktable 5 are provided with a second fixed shaft 20 for connecting the side plate 23. The side plate 23 is completely connected to the first worktable 4 or completely connected to the second worktable 5, or a portion of the side plate 23 is connected to the first worktable 4 and another portion of the side plate 23 is connected to the second worktable 5.
[0050] Furthermore, the side panel 23 can be installed separately on-site.
[0051] Furthermore, the first fixed shaft 19 can be fixed to the first worktable 4 in a non-rotatable manner or it can be fixed to the first worktable 4 in a rotatable manner.
[0052] Furthermore, the second fixed shaft 20 can be fixed to the second worktable 5 in a non-rotatable manner, or it can be fixed to the second worktable 5 in a rotatable manner.
[0053] In a preferred embodiment, the first fixed shaft 19 and the second fixed shaft 20 are integrated into one piece.
[0054] Furthermore, the integrated configuration refers to the first fixed shaft 19 and the second fixed shaft 20 being coaxially configured and connected to each other as a whole, based on the previous embodiment.
[0055] In a preferred embodiment, a reinforcing plate 24 is also included, which is disposed between the first upright plate 15 and the second upright plate 16 and is connected to the first upright plate 15 and the second upright plate 16 respectively.
[0056] Furthermore, the reinforcing plate 24 is connected to the first upright plate 15 and the second upright plate 16 via pins.
[0057] As a preferred embodiment, the system also includes a guardrail structure 25, which includes vertical bars 26, limiting blocks 27, horizontal bars 28, and buckles 29. The horizontal bars 28 are perpendicular to the vertical bars 26 and are connected to each other by buckles 29. Each vertical bar 26 is provided with a limiting block 27 below it. The first worktable 4, the second worktable 5, and the side plate 23 are all provided with mounting holes 30 for inserting the vertical bars 26. The limiting blocks 27 are used to adjust the depth of the vertical bars 26 inserted into the mounting holes 30.
[0058] In a preferred embodiment, the first support frame 1 further includes a first top plate 31, which is vertically connected to the first vertical plate 15, and two first inclined plates 32 are provided at the connection point. The second support frame 2 further includes a second top plate 33, which is vertically connected to the second vertical plate 16, and two second inclined plates 34 are provided at the connection point. The first top plate 31 and the second top plate 33 are used to place material components.
[0059] The construction operation platform of this utility model has two installation methods:
[0060] (1) On flat ground, assemble the overall structure of the construction operation platform, hoist the overall construction operation platform to the designated position, and install it.
[0061] (2) First, lift the first support frame 1 and the second support frame 2 to the designated position. Then, clamp and fix the first support frame 1 and the second support frame 2 to the column 36 by the position adjustment structure 3. Then, lift the first workbench 4 and the second workbench 5 to the corresponding positions of the first support frame 1 and the second support frame 2. After connecting the above structures to each other, install the guardrail structure 25.
[0062] When it is necessary to dismantle the construction operation platform of this utility model, use a crane with steel wire rope to suspend the sliding leg 9 of this utility model, then adjust the position adjustment structure 3 so that the first support frame 1 and the second support frame 2 are loosened from the column 36, the construction operation platform is separated from the column 36, and then the construction operation platform is lowered to the ground by the crane and dismantled. After checking the structural integrity and usability again, it can be used for the installation of other parts.
[0063] The construction operation platform of this utility model can be installed at any time. After installation, the crane can be removed from the site and used again when needed later. There is no need to use the crane and other lifting equipment for a long time.
[0064] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A construction operation platform, characterized in that, include: The system comprises a first support frame (1), a second support frame (2), a position adjustment structure (3), a first workbench (4), and a second workbench (5). The position adjustment structure (3) is connected to the first support frame (1) and the second support frame (2) to form a channel through which the column (36) passes. The position adjustment structure (3) is used to adjust the clamping degree of the first support frame (1) and the second support frame (2) on the column (36). The first workbench (4) is connected to the first support frame (1) through a first connecting structure (6), and the second workbench (5) is connected to the second support frame (2) through a second connecting structure (7). The first workbench (4) and the second workbench (5) are used to place items or for construction workers to stand and walk.
2. The construction operation platform according to claim 1, characterized in that: The position adjustment structure (3) includes an adjustment plate (8), a sliding leg (9), a fastening bolt (10), and an adjustment knob (11). The adjustment plate (8) has a threaded hole (12) in the middle. The adjustment knob (11) includes a rotating handle (13) and a threaded rod (14) connected to the rotating handle (13). The threaded rod (14) is connected to the threaded hole (12). The rotating handle (13) and the sliding leg (9) are located on both sides of the adjustment plate (8). One end of each sliding leg (9) is fixed on the adjustment plate (8), and the other end of each sliding leg (9) is used to be threadedly connected to the fastening bolt (10).
3. The construction operation platform according to claim 2, characterized in that: The first support frame (1) includes a first upright plate (15), and the second support frame (2) includes a second upright plate (16). Both the first upright plate (15) and the second upright plate (16) are provided with reserved holes corresponding to the number and position of the sliding legs (9). The sliding legs (9) pass through the reserved holes on the first upright plate (15) and the second upright plate (16). The end of the threaded rod (14) away from the rotating handle (13) abuts against the first upright plate (15). The fastening bolt (10) abuts against the side of the second upright plate (16) away from the first upright plate (15). The fastening bolt (10) and the threaded rod (14) clamp the first upright plate (15) and the second upright plate (16).
4. The construction operation platform according to claim 3, characterized in that: Both the first connection structure (6) and the second connection structure (7) include a first connector (17) and a second connector (18). The first connector (17) is disposed on the first upright plate (15) and the second upright plate (16), and the second connector (18) is disposed on the first worktable (4) and the second worktable (5). The first connector (17) of the first upright plate (15) and the second connector (18) of the first worktable (4) are connected by a pin, and the first connector (17) of the second upright plate (16) and the second connector (18) of the second worktable (5) are connected by a pin.
5. The construction operation platform according to claim 1, characterized in that: It also includes a first fixed shaft (19), a fixed block (21) and a connecting belt (22). The first fixed shaft (19) is provided on both the first worktable (4) and the second worktable (5). The second connector (18) of the first worktable (4) is rotatably connected to the first worktable (4) through the first fixed shaft (19). The second connector (18) of the second worktable (5) is rotatably connected to the second worktable (5) through the first fixed shaft (19). The fixed block (21) is provided on both the first worktable (4) and the second worktable (5). The second connector (18) of the first worktable (4) is connected to the fixed block (21) of the first worktable (4) through the connecting belt (22). The second connector (18) of the second worktable (5) is connected to the fixed block (21) of the second worktable (5) through the connecting belt (22).
6. The construction operation platform according to claim 5, characterized in that: It also includes a second fixed shaft (20) and a side plate (23). The first worktable (4) and / or the second worktable (5) are provided with a second fixed shaft (20) for connecting the side plate (23). The side plate (23) is completely connected to the first worktable (4) or completely connected to the second worktable (5), or part of the side plate (23) is connected to the first worktable (4), and the other part of the side plate (23) is connected to the second worktable (5).
7. The construction operation platform according to claim 6, characterized in that: The first fixed shaft (19) and the second fixed shaft (20) are integrally formed.
8. The construction operation platform according to claim 3, characterized in that: It also includes a reinforcing plate (24), which is disposed between the first upright plate (15) and the second upright plate (16) and is connected to the first upright plate (15) and the second upright plate (16) respectively.
9. The construction operation platform according to claim 6, characterized in that: It also includes a guardrail structure (25), which includes a vertical bar (26), a limiting block (27), a horizontal bar (28), and a buckle (29). The horizontal bar (28) is perpendicular to the vertical bar (26) and connected to each other through the buckle (29). The limiting block (27) is provided below each vertical bar (26). The first workbench (4), the second workbench (5), and the side plate (23) are all provided with mounting holes (30) for inserting the vertical bar (26). The limiting block (27) is used to adjust the depth of the vertical bar (26) inserted into the mounting hole (30).
10. The construction operation platform according to claim 3, characterized in that: The first support frame (1) further includes a first top plate (31), which is vertically connected to the first upright plate (15), and two first inclined plates (32) are provided at the connection. The second support frame (2) further includes a second top plate (33), which is vertically connected to the second upright plate (16), and two second inclined plates (34) are provided at the connection. The first top plate (31) and the second top plate (33) are used to place material components.