Multi-section type adjusting support for construction engineering construction
By installing a protective net structure on a multi-segment adjustable bracket and using a servo motor to drive a gear and rack mechanism to achieve the extension and retraction adjustment of the protective net, the problem of tools and blocky objects falling during construction is solved, thus improving construction safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JISHI CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-01
AI Technical Summary
When using existing multi-segment scaffolding for construction, workers' tools and blocky objects generated during construction are prone to falling, leading to safety accidents, which are particularly serious in the construction of high-rise buildings.
A multi-segment adjustable bracket was designed, equipped with a protective net structure. The protective net is telescopically adjustable by a gear and rack mechanism driven by a servo motor, and stability is ensured by limit grooves and limit blocks to prevent objects from falling.
It effectively prevents tools and construction debris from falling directly to the ground, improving construction safety, especially providing higher safety guarantees in high-rise building construction.
Smart Images

Figure CN224187137U_ABST
Abstract
Description
A multi-section adjustable support for construction projects Technical Field
[0001] This utility model belongs to the field of construction equipment, specifically relating to a multi-section adjustable support for construction projects. Background Technology
[0002] Construction scaffolding, also known as support frames or scaffolding, is a temporary structure used to support formwork, personnel, materials, and equipment during construction, ensuring construction safety and stability of the work surface.
[0003] Existing multi-segment scaffolding for construction typically consists of multiple interlocking scaffold segments. These segments allow for flexible adjustment of height and span to meet construction needs, providing a stable working platform for workers. However, during actual construction, when workers are welding, cutting, or hammering on the scaffolding platform, workpieces may accidentally fall due to operational errors or insecure fixing. Simultaneously, stones, debris, and other waste generated during construction may slip through platform gaps or edges due to vibration and collisions. If these falling objects hit construction workers, equipment, or surrounding buildings, they can easily cause safety accidents, resulting in personal injury or property damage. This is especially true in high-rise building construction scenarios, where the impact of falling objects is greater and the damage more severe. Summary of the Invention
[0004] To overcome the problem that workers' tools and blocky objects generated during construction may fall and affect the ground when using multi-segment scaffolds, a multi-segment adjustable scaffold for construction projects is proposed.
[0005] The technical solution of this utility model is as follows: a multi-segment adjustable support for construction engineering, including a platform and a support frame. A fixed frame is fixedly connected to the lower end of the platform. A protective net is slidably provided on the inner wall of the fixed frame. A left-right symmetrical limiting groove is opened through the upper end of the fixed frame. A left-right symmetrical limiting block is fixedly connected to the upper edge of the protective net. The limiting block is adapted to the limiting groove. A left-right symmetrical rotating block is fixedly connected to the lower edge of the fixed frame. A rotating shaft is rotatably installed on the inner wall of the left and right rotating blocks. A left-right symmetrical gear is fixedly connected to the outer wall of the rotating shaft. A left-right symmetrical rack is fixedly connected to the lower end of the protective net. A left-right symmetrical groove is opened through the lower end of the fixed frame. The gear passes through the groove and meshes with the rack. A servo motor is fixedly connected to the right end of the fixed frame. The output end of the servo motor passes through the right end of the right rotating block and is connected to the rotating shaft.
[0006] Furthermore, a ladder is provided on the side of the platform away from the fixed frame, and the upper end of the ladder is fixed with symmetrical fixing blocks. Two screw holes are provided through the front and rear ends of the fixing blocks.
[0007] Furthermore, the lower end of the fixing block is provided with symmetrical fixing grooves, and the inner walls of the front and rear ends of the fixing grooves are provided with screw holes three times, and the fixing grooves are adapted to the fixing block.
[0008] Furthermore, screw hole three corresponds one-to-one with screw hole two, and the ladders are connected by bolts. The platform has a safety door hinged at the end closest to the ladder.
[0009] Furthermore, a symmetrical fixing sleeve is fixed to one end of the platform near the ladder. The front and rear ends of the fixing sleeve are provided with screw holes. The fixing block is adapted to the fixing sleeve, and screw holes one and two correspond one-to-one.
[0010] Furthermore, the ladder is connected to the fixing sleeve by bolts, and the lower end of the platform has four symmetrical screw holes, and the upper end of the support frame has five symmetrical screw holes. Screw holes five correspond one-to-one with screw holes four, and the platform is connected to the support frame by bolts.
[0011] Furthermore, the lower end of the support frame is provided with six symmetrical screw holes, which correspond one-to-one with screw hole five. The support frames are connected by bolts.
[0012] The beneficial effects of this utility model are as follows: The output end of the servo motor can drive the rotating shaft to rotate, thereby driving the gear meshing rack to rotate, which allows the protective net to move back and forth along the inner wall of the fixed frame, thereby adjusting the length of the protective net extension. The limiting block can cooperate with the limiting groove to limit the extension length of the protective net and assist in supporting the protective net, improving the stability of the protective net during operation. Furthermore, the extension of the protective net can protect the lower end of the working surface. Compared with the existing multi-segment support for construction, the added protective net structure can use the servo motor to drive the protective net to extend and protect the lower part of the construction surface during construction, preventing tools and blocky objects generated during construction from falling directly to the ground, thus improving the safety of the platform during construction. Attached Figure Description
[0013] Figure 1 shows a three-dimensional structural schematic diagram of this utility model;
[0014] Figure 2 shows a three-dimensional structural breakdown diagram of this utility model;
[0015] Figure 3 shows a three-dimensional structural breakdown diagram of the protective net, servo motor, fixed frame, support block, rotating shaft, gear and rack of this utility model.
[0016] Figure 4 shows a three-dimensional structural breakdown diagram of the platform, protective door, ladder, and fixing sleeve of this utility model.
[0017] Figure 5 shows a three-dimensional structural diagram of the support frame, screw hole five, and screw hole six of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1. Platform; 2. Support frame; 3. Protective net; 4. Ladder; 5. Servo motor; 6. Fixing frame; 7. Support block; 8. Rotating shaft; 9. Gear; 10. Rack; 11. Groove; 12. Limiting groove; 13. Limiting block; 14. Protective door; 15. Fixing sleeve; 16. Screw hole one; 17. Fixing block; 18. Screw hole two; 19. Fixing groove; 20. Screw hole three; 21. Screw hole four; 22. Screw hole five; 23. Screw hole six. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please refer to Figures 1-5. This utility model provides an embodiment: a multi-segment adjustable support for construction engineering, including a platform 1 and a support frame 2. A fixed frame 6 is fixedly connected to the lower end of the platform 1. A protective net 3 is slidably provided on the inner wall of the fixed frame 6. A left-right symmetrical limiting groove 12 is opened through the upper end of the fixed frame 6. A left-right symmetrical limiting block 13 is fixedly connected to the upper edge of the protective net 3. The limiting block 13 is adapted to the limiting groove 12. A left-right symmetrical support block 7 is fixedly connected to the lower edge of the fixed frame 6. A rotating shaft 8 is rotatably installed on the inner wall of the two left and right support blocks 7. A left-right symmetrical gear 9 is fixedly connected to the outer wall of the rotating shaft 8. A left-right symmetrical rack 10 is fixedly connected to the lower end of the protective net 3. A left-right symmetrical groove 11 is opened through the lower end of the fixed frame 6. The gear 9 passes through the groove 11 and meshes with the rack 10. A servo motor 5 is fixedly connected to the right end of the fixed frame 6. The output end of the servo motor 5 passes through the right end of the right support block 7 and is connected to the rotating shaft 8.
[0021] The output of the servo motor 5 can drive the rotating shaft 8 to rotate, which in turn drives the gear 9 to mesh with the rack 10 to rotate. This allows the protective net 3 to move back and forth along the inner wall of the fixed frame 6, thereby adjusting the extension length of the protective net 3. The limiting block 13 can cooperate with the limiting groove 12 to limit the extension length of the protective net 3 and assist in supporting the protective net 3, improving the stability of the protective net 3 during operation. Furthermore, the extension of the protective net 3 can protect the lower end of the working surface, effectively preventing tools or blocky objects generated during construction from falling directly to the ground, thus improving safety during construction.
[0022] Please refer to Figure 4. In this embodiment, a ladder 4 is provided on the side of the platform 1 away from the fixed frame 6. The upper end of the ladder 4 is fixed with symmetrical fixing blocks 17. The front and rear ends of the fixing blocks 17 are provided with screw holes 18. In use, the ladder 4 can be used to easily climb onto the platform 1 and enter the platform 1 to work. The lower end of the fixing blocks 17 is provided with symmetrical fixing grooves 19. The inner walls of the front and rear ends of the fixing grooves 19 are provided with screw holes 20. The fixing grooves 19 are adapted to the fixing blocks 17. In use, several ladders 4 can be spliced together by the fixing blocks 17 fixed to the upper end of the ladder 4 and the fixing grooves 19 opened at the lower end to achieve a suitable height, making it convenient for workers to climb onto the platform 1.
[0023] Please refer to Figures 3 and 4. In this embodiment, screw hole 3 20 corresponds one-to-one with screw hole 2 18. The ladders 4 are connected by bolts. The platform 1 has a protective door 14 hinged at the end near the ladder 4. In use, the ladders 4 can be fixed by bolts in conjunction with screw holes 2 18 and screw hole 3 20, which improves the stability and reliability of the ladders 4 during operation. The platform 1 has a fixed sleeve 15 with left and right symmetrical fasteners at the end near the ladder 4. Screw holes 1 16 are opened through the front and rear ends of the fixed sleeve 15. The fixing block 17 is adapted to the fixed sleeve 15. Screw holes 1 16 correspond one-to-one with screw holes 2 18. In use, the ladder 4 can be easily fixed by the fixed sleeve 15, which makes it easy to install the ladder 4 at the rear end of the platform 1.
[0024] Please refer to Figure 5. In this embodiment, the ladder 4 and the fixing sleeve 15 are connected by bolts. The lower end of the platform 1 has a symmetrical screw hole 21, and the upper end of the support frame 2 has a symmetrical screw hole 22. Screw hole 22 corresponds to screw hole 21. The platform 1 is connected to the support frame 2 by bolts. In use, the ladder 4 can be fixed to the rear end of the platform 1 by bolts in conjunction with screw holes 16 and 28, which further improves the stability of the ladder 4. The platform 1 can be fixedly installed on the upper end of the support frame 2 by bolts in conjunction with screw holes 21 and 22, which improves the stability of the platform 1 during operation. The lower end of the support frame 2 has a symmetrical screw hole 23, which corresponds to screw hole 22. The support frames 2 are connected by bolts. In use, the support frames 2 can be spliced together by bolts in conjunction with screw holes 23 and 22 to achieve a suitable height and support the platform 1, which is convenient for workers to carry out construction operations at height.
[0025] During the work, firstly, based on the construction height, select and install an appropriate number of support frames 2, place them at the lower end where construction is needed, and stack the support frames 2 so that screw holes 5 22 are aligned with screw holes 6 23. Then, rotate the bolts to pass through screw holes 5 22 and install the threads into screw holes 6 23, thus fixing the support frames 2. Next, use equipment to place the platform 1 on the uppermost support frame 2, aligning screw holes 4 21 with screw holes 5 22. Rotate the bolts to pass through screw holes 4 21 and install the threads into screw holes 5 22, thus fixing the platform 1. Finally, based on the height of the platform 1, select an appropriate number of ladders... After inserting the fixing block 17 into the fixing groove 19, rotate the bolt so that the bolt passes through the screw hole 3 20 and is threaded into the screw hole 2 18. After completing the splicing of ladder 4, insert the fixing block 17 of the uppermost ladder 4 into the fixing sleeve 15, rotate the bolt so that the bolt passes through the screw hole 16 and is threaded into the screw hole 2 18. After completing the installation of ladder 4, climb onto platform 1 through ladder 4, close the protective door 14, put on the protective equipment, start the servo motor 5, and wait for the output end of the servo motor 5 to drive the rotating shaft 8 and gear 9 to rotate, so that the protective net 3 extends to protect the lower end of the construction surface.
[0026] Through the above steps, the output end of the servo motor 5 can drive the rotating shaft 8 to rotate, thereby driving the gear 9 to mesh with the rack 10 to rotate, which allows the protective net 3 to move back and forth along the inner wall of the fixed frame 6, thereby adjusting the extension length of the protective net 3. The limiting block 13 can cooperate with the limiting groove 12 to limit the extension length of the protective net 3 and assist in supporting the protective net 3, improving the stability of the protective net 3 during operation. The extension of the protective net 3 can protect the lower end of the working surface, solving the problem that workers' tools and blocky objects generated during construction may fall and affect the ground when using multi-segment scaffolds.
Claims
1. A multi-section adjustable support for construction engineering, comprising a platform (1) and a support frame (2), characterized in that: A fixed frame (6) is fixedly connected to the lower end of the platform (1). A protective net (3) is slidably provided on the inner wall of the fixed frame (6). A left-right symmetrical limiting groove (12) is opened through the upper end of the fixed frame (6). A left-right symmetrical limiting block (13) is fixedly connected to the upper edge of the protective net (3). The limiting block (13) is adapted to the limiting groove (12). A left-right symmetrical support block (7) is fixedly connected to the lower edge of the fixed frame (6). A rotating mechanism is installed on the inner wall of the left and right support blocks (7) together. The outer wall of the rotating shaft (8) is fixed with symmetrical gears (9), the lower end of the protective net (3) is fixed with symmetrical racks (10), the lower end of the fixed frame (6) is provided with symmetrical grooves (11), the gears (9) pass through the grooves (11) and mesh with the racks (10), the right end of the fixed frame (6) is fixed with a servo motor (5), the output end of the servo motor (5) passes through the right end of the right side support block (7) and is connected to the rotating shaft (8).
2. The multi-segment adjustable support for construction projects according to claim 1, characterized in that: A ladder (4) is provided on the side of the platform (1) away from the fixed frame (6). The upper end of the ladder (4) is fixed with a left-right symmetrical fixed block (17). The front and rear ends of the fixed block (17) are provided with two screw holes (18).
3. The multi-segment adjustable support for construction projects according to claim 2, characterized in that: The lower end of the fixing block (17) is provided with a left-right symmetrical fixing groove (19), and the inner walls of the front and rear ends of the fixing groove (19) are provided with screw holes (20). The fixing groove (19) is compatible with the fixing block (17).
4. A multi-segment adjustable support for construction projects according to claim 3, characterized in that: Screw hole three (20) corresponds one-to-one with screw hole two (18). The ladders (4) are connected by bolts. The platform (1) has a protective door (14) hinged at one end near the ladder (4).
5. A multi-segment adjustable support for construction projects according to claim 4, characterized in that: The platform (1) is fixed with a symmetrical fixed sleeve (15) at one end near the ladder (4). The front and rear ends of the fixed sleeve (15) are provided with screw holes one (16). The fixed block (17) is adapted to the fixed sleeve (15). Screw hole one (16) corresponds to screw hole two (18).
6. A multi-segment adjustable support for construction projects according to claim 5, characterized in that: The ladder (4) is connected to the fixing sleeve (15) by bolts. The lower end of the platform (1) is provided with a symmetrical screw hole four (21), and the upper end of the support frame (2) is provided with a symmetrical screw hole five (22). The screw hole five (22) corresponds to the screw hole four (21) one by one. The platform (1) is connected to the support frame (2) by bolts.
7. A multi-segment adjustable support for construction projects according to claim 6, characterized in that: The lower end of the support frame (2) has six symmetrical screw holes (23), which correspond one-to-one with screw holes (22). The support frames (2) are connected by bolts.