A device for preventing workers from falling during construction of a factory building

By introducing anti-deviation and reeling components into the fall arrest device, the problems of safety rope scattering and slippage are solved, achieving both safety and ease of rescue in high-altitude operations.

CN224413198UActive Publication Date: 2026-06-26SHENYANG TIANMA MEDICINE ENG INSTALLATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG TIANMA MEDICINE ENG INSTALLATION CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, fall arrest devices are prone to causing safety ropes to scatter or slip during high-altitude operations, increasing the risk of workers tripping and making rescue inconvenient, which may cause secondary injuries.

Method used

An anti-deviation component and a winding component were designed. The anti-deviation component prevents the safety rope from moving left and right, while the winding component stores excess rope. Combined with the limiting component, the winding roller is fixed to ensure that the safety rope does not fall apart and reduces the risk of slippage.

Benefits of technology

It effectively prevents safety ropes from scattering and slipping during high-altitude operations and rescues, reduces the risk of tripping, and improves the safety and convenience of rescue operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a factory building construction is with preventing worker falling device, including scaffold, the surface fixed mounting of scaffold has the crosspiece, the inside of crosspiece has seted up movable cavity, the inside slide mounting of movable cavity has the sliding block, the inside of sliding block is provided with the deviation prevention subassembly for preventing safety rope left and right movement in the process of rescuing, the bottom of safety rope is fixedly connected with the connecting seat, the rotation of pivot, drives the winding roll rotation, carries out winding to the safety rope in the connecting seat, prevents the redundant safety rope and scatters in the foot, causes the situation of the worker to stumble to happen, through the setting of deviation prevention subassembly, under the action of worker gravity, will pull down safety rope, drives the movable block and moves down in the first cavity, and the connecting block and the lifting plate descend, make the locating block and insert into the locating hole and move down, can limit the sliding block, avoid the sliding block and slide in movable cavity, prevent safety rope from swinging greatly when rescuing, reduce the rescue risk.
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Description

Technical Field

[0001] This utility model relates to the field of factory construction technology, specifically a device for preventing workers from falling during factory construction. Background Technology

[0002] During factory construction, workers often need to climb, and scaffolding is typically used to provide necessary safety protection to ensure the safety of working at heights. However, despite these precautions, construction workers can still fall from heights if they accidentally misstep or make a mistake while working on scaffolding. Such accidents often result in serious injuries or even worse consequences.

[0003] In existing technologies, workers typically fasten the safety rope to a horizontal bar on the scaffold. When a worker falls and is suspended, the safety rope can easily shift on the horizontal bar during rescue, causing it to swing significantly and potentially resulting in secondary injuries. Furthermore, existing fall arrest devices are inconvenient for retracting the safety rope, often leaving excess rope scattered on the scaffold, which actually increases the risk of workers tripping. Therefore, this invention provides a fall arrest device for factory construction workers to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a device for preventing workers from falling during factory construction, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fall prevention device for factory construction includes scaffolding. A horizontal bar is fixedly installed on the surface of the scaffolding. A movable cavity is formed inside the horizontal bar, and a slider is slidably installed inside the movable cavity. An anti-deviation component is installed inside the slider to prevent the safety rope from moving left or right during rescue operations. A connecting seat is fixedly connected to the bottom end of the safety rope. A winding component is installed inside the connecting seat to prevent the safety rope from unraveling. A connecting shaft is rotatably installed on the surface of the connecting seat, and a locking buckle is fixedly installed at one end of the connecting shaft.

[0007] As a further embodiment of this utility model, the anti-deviation component includes a first cavity formed inside the slider, a movable block slidably mounted inside the first cavity, a first spring fixedly mounted at the bottom end of the movable block, the bottom end of the first spring being fixedly connected to the inner wall of the first cavity, a connecting block fixedly mounted on the top surface of the movable block, a lifting plate fixedly mounted through the slider on the top surface of the connecting block, a positioning block fixedly mounted on the bottom surface of the lifting plate, and a safety rope fixedly connected to the bottom surface of the movable block.

[0008] As a further embodiment of this utility model, a fixing plate is fixedly installed inside the movable cavity. The top surface of the fixing plate is provided with positioning holes. Multiple sets of positioning holes are provided, and the positioning holes are arranged in an array. The positioning block is provided in correspondence with the positioning holes.

[0009] As a further embodiment of this utility model, the winding assembly includes a rotating shaft rotatably mounted inside the connecting seat, a winding roller fixedly mounted on the surface of the rotating shaft, a safety rope wound around the surface of the winding roller, and rotating blocks fixedly mounted at both ends of the rotating shaft.

[0010] As a further embodiment of this utility model, the surface of the rotating block is provided with a limiting component for limiting the winding roller. The limiting component includes a mounting block fixedly installed on the surface of the rotating block. The mounting block has a second cavity inside, and a movable rod is slidably installed inside the second cavity. A pull rod is fixedly installed at the end of the movable rod away from the connecting seat, and a moving block is fixedly installed at the end of the movable rod away from the pull rod. A second spring is fixedly installed on the side of the moving block near the movable rod. The second spring is sleeved on the surface of the movable rod, and an insert rod is fixedly installed on the side of the moving block away from the second spring.

[0011] As a further embodiment of this utility model, the surface of the connector is provided with insertion holes, and multiple sets of insertion holes are provided, with the insertion holes and insertion rods being arranged in a corresponding manner.

[0012] As a further embodiment of this utility model, the surface of the scaffold is fixedly equipped with ladders and planks, and two sets of ladders and planks are provided for each.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When using this utility model, by setting up the winding assembly and the limiting assembly, pulling the pull rod outward will drive the movable rod and the moving block to move, so that the insertion rod moves out of the insertion hole. Rotating the pull rod will cause the rotating shaft to rotate, which will drive the winding roller to rotate, thereby winding up the safety rope in the connecting seat and preventing excess safety rope from falling around the feet and causing workers to trip.

[0015] 2. When this utility model is in use, the anti-deviation component will pull the safety rope downward under the worker's gravity, causing the movable block to move downward in the first cavity. This will cause the connecting block and the lifting plate to descend, and the positioning block to move down and insert into the positioning hole, thus limiting the slider and preventing it from sliding in the movable cavity. This will prevent the safety rope from swinging significantly during rescue and reduce the risk of rescue. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a device for preventing workers from falling during factory construction.

[0017] Figure 2 This is a cross-sectional view of a crossbar in a fall prevention device used in factory construction.

[0018] Figure 3 This is a schematic diagram of the movable block in a worker fall prevention device used in factory construction.

[0019] Figure 4 This is a cross-sectional view of an anti-deviation component in a worker fall prevention device used in factory construction.

[0020] Figure 5 This is a schematic diagram of the connecting seat in a worker fall prevention device used in factory construction.

[0021] Figure 6 This is a cross-sectional view of a connecting seat in a worker fall prevention device used in factory construction.

[0022] In the diagram: 1. Scaffolding; 2. Horizontal bar; 3. Movable cavity; 4. Sliding block; 5. Limiting block; 6. Limiting groove; 7. Fixing plate; 8. Positioning hole; 9. First cavity; 10. Movable block; 11. First spring; 12. Connecting block; 13. Lifting plate; 14. Positioning block; 15. Safety rope; 16. Connecting seat; 17. Rotating shaft; 18. Winding roller; 19. Rotating block; 20. Mounting block; 21. Second cavity; 22. Movable rod; 23. Pull rod; 24. Moving block; 25. Second spring; 26. Insert rod; 27. Insertion hole; 28. Connecting shaft; 29. ​​Lock; 30. Ladder; 31. Shelf board. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6In this embodiment of the present invention, a fall prevention device for factory construction includes a scaffold 1. A horizontal bar 2 is fixedly installed on the surface of the scaffold 1. A movable cavity 3 is formed inside the horizontal bar 2. A slider 4 is slidably installed inside the movable cavity 3. To ensure that the slider 4 can slide stably along the horizontal bar 2, a limiting block 5 is fixedly installed on the surface of the slider 4. A limiting groove 6 is formed inside the movable cavity 3, and the limiting block 5 is slidably installed in the limiting groove 6. A fixing plate 7 is fixedly installed inside the movable cavity 3. Positioning holes 8 are formed on the top surface of the fixing plate 7. Multiple sets of positioning holes 8 are arranged in an array. The slider 4 has a... The system is equipped with an anti-deviation component to prevent the safety rope 15 from moving left or right during rescue operations. The bottom end of the safety rope 15 is fixedly connected to a connecting seat 16. The connecting seat 16 is equipped with a winding component to prevent the safety rope 15 from becoming tangled. A connecting shaft 28 is rotatably mounted on the surface of the connecting seat 16. A locking buckle 29 is fixedly mounted on one end of the connecting shaft 28. Both the connecting shaft 28 and the locking buckle 29 are provided in two sets. When working at height, the worker will wear a safety belt. When the worker climbs the ladder 30 onto the scaffold 31, the locking buckle 29 is connected to the safety belt on the worker's body, thereby protecting the worker from falling from a height during construction.

[0025] To prevent slider 4 from sliding within movable cavity 3 during rescue operations, it is necessary to limit the movement of slider 4, such as... Figure 3 and Figure 4 As shown, the anti-deviation component includes a first cavity 9 inside the slider 4. A movable block 10 is slidably installed inside the first cavity 9. A first spring 11 is fixedly installed at the bottom end of the movable block 10. The bottom end of the first spring 11 is fixedly connected to the inner wall of the first cavity 9. A connecting block 12 is fixedly installed on the top surface of the movable block 10. The top surface of the connecting block 12 passes through the slider 4 and is fixedly installed with a lifting plate 13. A positioning block 14 is fixedly installed on the bottom surface of the lifting plate 13. The bottom surface of the movable block 10 is fixedly connected to the safety rope 15. During rescue, the positioning block 14 on the lifting plate 13 is inserted into the positioning hole 8 to fix the slider 4, preventing the safety rope 15 from swinging significantly during rescue and reducing rescue risks.

[0026] To prevent excess safety rope 15 from scattering around the workers' feet during construction, it needs to be wound up, such as... Figure 6 As shown, the winding assembly includes a rotating shaft 17 rotatably mounted inside the connecting seat 16. A winding roller 18 is fixedly mounted on the surface of the rotating shaft 17. The safety rope 15 is wound around the surface of the winding roller 18. Rotating blocks 19 are fixedly mounted at both ends of the rotating shaft 17. By rotating the winding roller 18, the safety rope 15 can be wound up, making it more convenient to use.

[0027] After winding up the safety rope 15, the winding roller 18 needs to be limited and fixed, such as... Figure 6As shown, the surface of the rotating block 19 is provided with a limiting component for limiting the winding roller 18. The limiting component includes a mounting block 20 fixedly installed on the surface of the rotating block 19. The mounting block 20 has a second cavity 21 inside. A movable rod 22 is slidably installed inside the second cavity 21. A pull rod 23 is fixedly installed at the end of the movable rod 22 away from the connecting seat 16. A moving block 24 is fixedly installed at the end of the movable rod 22 away from the pull rod 23. A second spring 25 is fixedly installed on the side of the moving block 24 near the movable rod 22. The second spring 25 is sleeved on the surface of the movable rod 22. An insertion rod 26 is fixedly installed on the side of the moving block 24 away from the second spring 25. The surface of the connecting seat 16 has an insertion hole 27. Multiple sets of insertion holes 27 are provided. The insertion holes 27 and the insertion rods 26 are correspondingly arranged. By pushing with the second spring 25, the insertion rod 26 enters the insertion hole 27, thereby limiting and fixing the winding roller 18 and preventing the safety rope 15 from falling off during use.

[0028] The surface of the scaffold 1 is fixedly equipped with ladders 30 and planks 31, and there are two sets of ladders 30 and planks 31. The upper and lower planks 31 of the scaffold 1 can provide support for workers to work. Horizontal bars 2 are fixedly installed on the upper and lower sides of the scaffold 1. The horizontal bars 2 are equipped with anti-fall structures. At the same time, guardrails are fixedly installed on both sides of the scaffold 1 to provide anti-fall protection for workers working on the upper and lower planks 31.

[0029] The working principle of this utility model is as follows: During use, workers climb onto the scaffolding 31 using the ladder 30 and connect the safety rope 15's buckle 29 to the safety belt around their waist. In conventional high-altitude operations, the length of the safety rope 15 should be at least 2 meters. However, when the worker's position is close to the fixed end of the safety rope 15, excess rope may fall around their feet, potentially causing them to trip. Therefore, during operation, the worker can pull the lever 23 outwards, causing the movable lever 22 to move, which in turn moves the movable block 24. This compresses the second spring 25, causing the insertion rod 26 to move out of the insertion hole 27. The lever 23 can then be rotated, causing the rotating block 19 to rotate, which in turn rotates the shaft 17, thereby rotating the winding roller 18. This allows the safety rope 15 inside the connecting seat 16 to be wound up. After adjusting the length of the safety rope 15 outside the connecting seat 16 as needed, the lever 23 is released, and under the action of the second spring 25, the rope is pushed... The movable block 24 moves, which in turn moves the insertion rod 26, causing the insertion rod 26 to re-insert into the insertion hole 27. This limits and fixes the winding roller 18, preventing the safety rope 15 from scattering on the scaffold 1 and causing construction workers to trip. At the same time, when a worker falls and hangs on the scaffold 1, he will pull down the safety rope 15, causing the movable block 10 to move downward in the first cavity 9. The first spring 11 is compressed, causing the connecting block 12 to move down, which in turn causes the lifting plate 13 to descend. This causes the positioning block 14 to move down and insert into the positioning hole 8, thus limiting the slider 4 and preventing it from sliding in the movable cavity 3 during worker rescue. This avoids the safety rope 15 from sliding and reduces the risk during rescue. Moreover, during normal use, workers can pull the safety rope 15 left and right. Under the elastic force of the first spring 11, the positioning block 14 can be prevented from entering the positioning hole 8, allowing for flexible adjustment of the slider 4's position in the movable cavity 3, facilitating construction operations.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A fall prevention device for factory construction, comprising scaffolding (1), characterized in that, A crossbar (2) is fixedly installed on the surface of the scaffold (1). A movable cavity (3) is opened inside the crossbar (2). A slider (4) is slidably installed inside the movable cavity (3). An anti-deviation component is provided inside the slider (4) to prevent the safety rope (15) from moving left and right during the rescue process. A connecting seat (16) is fixedly connected to the bottom end of the safety rope (15). A winding component is provided inside the connecting seat (16) to prevent the safety rope (15) from scattering. A connecting shaft (28) is rotatably installed on the surface of the connecting seat (16). A lock (29) is fixedly installed at one end of the connecting shaft (28).

2. The worker fall prevention device for factory construction according to claim 1, characterized in that, The anti-deviation component includes a first cavity (9) opened inside the slider (4), a movable block (10) is slidably installed inside the first cavity (9), a first spring (11) is fixedly installed at the bottom end of the movable block (10), the bottom end of the first spring (11) is fixedly connected to the inner wall of the first cavity (9), a connecting block (12) is fixedly installed on the top surface of the movable block (10), the top surface of the connecting block (12) passes through the slider (4) and a lifting plate (13) is fixedly installed thereon, a positioning block (14) is fixedly installed on the bottom surface of the lifting plate (13), and the bottom surface of the movable block (10) is fixedly connected to the safety rope (15).

3. The worker fall prevention device for factory construction according to claim 2, characterized in that, A fixing plate (7) is fixedly installed inside the active cavity (3). The top surface of the fixing plate (7) is provided with positioning holes (8). There are multiple sets of positioning holes (8), and the positioning holes (8) are arranged in an array. The positioning block (14) is provided in correspondence with the positioning holes (8).

4. The worker fall prevention device for factory construction according to claim 1, characterized in that, The winding assembly includes a rotating shaft (17) rotatably mounted inside the connecting seat (16), a winding roller (18) is fixedly mounted on the surface of the rotating shaft (17), the safety rope (15) is wound around the surface of the winding roller (18), and rotating blocks (19) are fixedly mounted at both ends of the rotating shaft (17).

5. A worker fall prevention device for factory construction according to claim 4, characterized in that, The surface of the rotating block (19) is provided with a limiting component for limiting the winding roller (18). The limiting component includes a mounting block (20) fixedly installed on the surface of the rotating block (19). The mounting block (20) has a second cavity (21) inside. A movable rod (22) is slidably installed inside the second cavity (21). A pull rod (23) is fixedly installed at the end of the movable rod (22) away from the connecting seat (16). A moving block (24) is fixedly installed at the end of the movable rod (22) away from the pull rod (23). A second spring (25) is fixedly installed on the side of the moving block (24) close to the movable rod (22). The second spring (25) is sleeved on the surface of the movable rod (22). An insert rod (26) is fixedly installed on the side of the moving block (24) away from the second spring (25).

6. A worker fall prevention device for factory construction according to claim 5, characterized in that, The surface of the connector (16) is provided with a socket (27), and there are multiple sets of sockets (27). The sockets (27) are arranged in a corresponding manner with the plug (26).

7. A worker fall prevention device for factory construction according to claim 1, characterized in that, The scaffold (1) is fixedly installed with ladders (30) and planks (31), and two sets of ladders (30) and planks (31) are provided.