Safety protection anti-falling device for building engineering construction

Abstract

The safety protection anti-falling device comprises a bottom plate, a plurality of fixing holes are formed in the upper end face of the bottom plate, a rotating shaft is rotatably installed on the upper end face of the bottom plate through a lifting frame, a rocking wheel is fixedly installed on the outer wall of the rotating shaft, a threaded rod is rotatably installed in the lifting frame, and the threaded rod is fixedly installed on the outer wall of the rotating shaft. Bevel gears are fixedly mounted on the outer walls of the screw rod and the rotating shaft, the two bevel gears are perpendicularly meshed, a moving block is rotationally mounted on the outer wall of the screw rod through a limiting mechanism in a threaded mode, and a connecting sleeve is fixedly mounted at the end of the moving block. By arranging the rotating shaft, the screw rod, the bevel gear and other assemblies, an operator rotates the rocking wheel, the screw rod is driven to rotate stably through vertical meshing of the bevel gear, and the movable block moves axially along the screw rod under the constraint of the limiting rod, so that the height of the anti-falling net is adjusted accurately and conveniently, and the requirements of different building story heights and complex construction scenes can be met; and the problem that the height is fixed and cannot adapt to the environment is solved.

Description

Technical Field

[0001] This utility model relates to the field of safety protection and fall prevention devices, and in particular to a safety protection and fall prevention device used in construction engineering. Background Technology

[0002] Safety protection and fall arrest devices are key equipment for ensuring the safety of workers at heights and preventing fall accidents. They play a protective role through multiple mechanisms.

[0003] Working at heights is an unavoidable part of construction projects. Construction workers face a significant risk of falling while working at heights. Fall accidents often result in serious injuries and property damage. Current fall protection devices often have fixed structures, making it difficult to flexibly adjust the height and range of protection according to actual construction needs. This makes them unsuitable for diverse construction scenarios and impractical. Therefore, a new safety fall protection device for construction projects needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a safety protection and fall prevention device for construction engineering.

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

[0006] A safety protection and fall prevention device for construction engineering includes a base plate with multiple fixing holes on its upper surface. A rotating shaft is rotatably mounted on the upper surface of the base plate via a lifting frame. A rocker wheel is fixedly mounted on the outer wall of the rotating shaft. A screw is rotatably mounted inside the lifting frame. Both the screw and the outer wall of the rotating shaft are fixedly mounted with bevel gears, which mesh perpendicularly. A moving block is rotatably mounted on the outer wall of the screw via a limiting mechanism. A connecting sleeve is fixedly mounted at the end of the moving block. An installation plate is fixedly connected inside the connecting sleeve via a connecting mechanism. Two prismatic rods are fixedly mounted on the outer wall of the installation plate through a buffer opening. Buffer blocks are slidably mounted on the outer walls of both prismatic rods. The bottom walls of both buffer blocks are connected to the inner wall of the buffer opening on the same side via a buffer mechanism. Connecting rods are fixedly mounted on the outer walls of both buffer blocks via a connecting frame. A fall prevention net is fixedly mounted on the outer walls of both connecting rods.

[0007] Preferably, the limiting mechanism includes a limiting rod fixedly installed inside the lifting frame, and the limiting rod slides through the moving block.

[0008] Preferably, the connecting mechanism includes a connecting block that is slidably installed inside the connecting sleeve, and the end of the connecting block is fixedly connected to the back of the mounting plate.

[0009] Preferably, the buffer mechanism includes a buffer spring installed on the outer wall of the prism rod, and the two ends of the buffer spring are elastically connected to the inner wall of the buffer opening and the bottom wall of the buffer block, respectively.

[0010] Preferably, a connecting bolt is rotatably installed on the upper end face of the connecting sleeve, and a connecting threaded hole that mates with the connecting bolt is opened on the upper end face of the connecting block.

[0011] Preferably, support rods are fixedly installed on the outer walls of both buffer blocks, and the ends of both support rods are fixedly connected to the bottom wall of the connecting frame on the same side.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as a rotating shaft, screw, and bevel gear, the operator turns the rocker wheel, and the screw rotates smoothly through the vertical meshing of the bevel gear. Constrained by the limiting rod, the moving block moves along the screw axis, realizing precise and convenient adjustment of the height of the fall protection net. It can meet the needs of different building heights and complex construction scenarios, improve the applicability of the device, and avoid the problem of fixed height being unable to adapt to the environment.

[0014] 2. By setting up components such as prismatic rods, buffer blocks, and buffer springs, a highly efficient buffer system is constructed. The fall protection net absorbs the impact force of the fall and transmits it to the buffer block. The unique shape of the prismatic rod provides a stable and smooth sliding track for the buffer block, allowing it to move quickly upward along the rod when impacted, compressing the buffer spring. The buffer spring uses its elasticity to convert the kinetic energy of the fall into elastic potential energy, greatly reducing the impact force and focusing on protecting vulnerable parts such as the spine and joints, significantly improving the survival rate and safety of construction workers in the event of an accidental fall. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a safety protection and fall prevention device for construction engineering proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0017] Figure 3 This is a top view of a safety protection and fall prevention device for construction engineering proposed in this utility model;

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Base plate, 2. Lifting frame, 3. Rotating shaft, 4. Rocker wheel, 5. Screw, 6. Bevel gear, 7. Limiting rod, 8. Moving block, 9. Connecting sleeve, 10. Connecting block, 11. Connecting bolt, 12. Mounting plate, 13. Prism rod, 14. Buffer block, 15. Buffer spring, 16. Connecting frame, 17. Connecting rod, 18. Fall protection net, 19. Support rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A safety protection and fall prevention device for construction engineering includes a base plate 1. Multiple fixing holes are provided on the upper surface of the base plate 1. A rotating shaft 3 is rotatably mounted on the upper surface of the base plate 1 via a lifting frame 2. A rocker wheel 4 is fixedly mounted on the outer wall of the rotating shaft 3. A screw 5 is rotatably mounted inside the lifting frame 2. Both the screw 5 and the outer wall of the rotating shaft 3 are fixedly mounted with bevel gears 6, which mesh perpendicularly. A moving block 8 is rotatably mounted on the outer wall of the screw 5 via a limiting mechanism. The limiting mechanism includes a limiting rod 7 fixedly mounted inside the lifting frame 2. The limiting rod 7 slides through the moving block 8, restricting the movement of the moving block 8 so that it can only move axially along the outer wall of the screw 5.

[0023] A connecting sleeve 9 is fixedly installed at the end of the movable block 8. An installation plate 12 is fixedly connected inside the connecting sleeve 9 through a connecting mechanism. The connecting mechanism includes a connecting block 10 that is slidably installed inside the connecting sleeve 9. The end of the connecting block 10 is fixedly connected to the back of the installation plate 12. A connecting bolt 11 is rotatably installed through the upper end face of the connecting sleeve 9. A connecting threaded hole that mates with the connecting bolt 11 is opened on the upper end face of the connecting block 10. Two prismatic rods 13 are fixedly installed on the outer wall of the installation plate 12 through a buffer opening. Buffer blocks 14 are slidably installed on the outer walls of both prismatic rods 13.

[0024] The bottom walls of both buffer blocks 14 are connected to the inner wall of the buffer opening on the same side through a buffer mechanism. The buffer mechanism includes a buffer spring 15 installed on the outer wall of the prismatic rod 13. The two ends of the buffer spring 15 are elastically connected to the inner wall of the buffer opening and the bottom wall of the buffer block 14, respectively. The outer walls of both buffer blocks 14 are fixedly installed with connecting rods 17 through connecting frames 16. The outer walls of the two connecting rods 17 are jointly fixedly installed with a fall protection net 18. The outer walls of both buffer blocks 14 are fixedly installed with support rods 19. The ends of the two support rods 19 are fixedly connected to the bottom wall of the connecting frame 16 on the same side.

[0025] When using this invention, during the assembly of the fall arrestor device, the base plate 1 can first be fixed to the ground using multiple fixing holes and fixing bolts. Then, the connecting block 10 can be slidably inserted into the connecting sleeve 9. When the connecting block 10 is fully inserted into the connecting sleeve 9, the connecting bolt 11 can be tightened, allowing it to penetrate deeply into the threaded hole through the threaded engagement. This achieves the fixing of the connecting block 10 inside the connecting sleeve 9, thus securing the fall arrestor net 18. When the height of the fall arrestor net 18 needs to be easily adjusted, it can be rotated... Wheel 4 drives the rotating shaft 3, which is fixedly connected to it, to rotate synchronously. Since the rotating shaft 3 meshes perpendicularly with the bevel gear 6 on the outer wall of the screw 5, the rotation of the rotating shaft 3 will drive the screw 5 to rotate. At this time, the moving block 8 is restricted by the limit rod 7 and cannot rotate with the screw 5. It can only move up and down along the direction of the limit rod 7 under the action of the screw 5 thread. The movement of the moving block 8 drives the connecting sleeve 9 and the fall protection net 18 connected to the connecting sleeve 9 to rise and fall synchronously. Construction personnel can adjust the fall protection net 18 to a suitable height position according to the actual construction height requirements.

[0026] When someone accidentally falls onto the fall arrest net 18 during construction, the impact force will cause the buffer block 14 to slide upward along the prism rod 13. During this process, the buffer spring 15 is compressed by the buffer block 14. The reverse elastic force generated by the buffer spring 15 can effectively absorb and buffer the impact force of the fall, reducing the injury to personnel. At the same time, the support rod 19 can enhance the stability of the connection between the buffer block 14 and the connecting frame 16, ensuring that the entire structure will not deform or be damaged under the impact force, and ensuring that the fall arrest net 18 continues to play a protective role. After construction is completed, if it is necessary to disassemble the fall arrest device, first loosen the connecting bolt 11 to remove it from the connecting threaded hole, then pull the connecting block 10 out of the connecting sleeve 9, and the fall arrest net 18 can be easily removed. Next, turn the rocker wheel 4 in the opposite direction to make the moving block 8 drive the connecting sleeve 9 to descend to the initial position. Finally, unscrew the fixing bolt and remove the base plate 1 from the ground to complete the disassembly of the entire device for subsequent handling and storage.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safety protection anti-falling device for construction engineering construction, comprising a bottom plate (1), characterized in that, The upper surface of the base plate (1) has multiple fixing holes. A rotating shaft (3) is rotatably mounted on the upper surface of the base plate (1) via a lifting frame (2). A rocker wheel (4) is fixedly mounted on the outer wall of the rotating shaft (3). A screw (5) is rotatably mounted inside the lifting frame (2). Both the screw (5) and the outer wall of the rotating shaft (3) are fixedly mounted with bevel gears (6). The two bevel gears (6) mesh perpendicularly. A moving block (8) is rotatably mounted on the outer wall of the screw (5) via a limiting mechanism. A connecting sleeve (9) is fixedly mounted at the end of the moving block (8). The connecting sleeve (9) is fixedly connected to the mounting plate (12) through the connecting mechanism. Two prismatic rods (13) are fixedly installed on the outer wall of the mounting plate (12) through the buffer opening. Buffer blocks (14) are slidably installed on the outer walls of the two prismatic rods (13). The bottom walls of the two buffer blocks (14) are connected to the inner wall of the buffer opening on the same side through the buffer mechanism. Connecting rods (17) are fixedly installed on the outer walls of the two buffer blocks (14) through the connecting frame (16). Fall protection nets (18) are fixedly installed on the outer walls of the two connecting rods (17).

2. A safety protection anti-falling device for construction engineering construction according to claim 1, characterized in that, The limiting mechanism includes a limiting rod (7) fixedly installed inside the lifting frame (2), and the limiting rod (7) slides through the moving block (8).

3. A safety protection anti-falling device for construction engineering construction according to claim 2, characterized in that, The connecting mechanism includes a connecting block (10) that is slidably installed inside the connecting sleeve (9), and the end of the connecting block (10) is fixedly connected to the back of the mounting plate (12).

4. The safety protection anti-falling device for construction engineering construction according to claim 3, characterized in that, The buffer mechanism includes a buffer spring (15) installed on the outer wall of the prism rod (13), and the two ends of the buffer spring (15) are elastically connected to the inner wall of the buffer opening and the bottom wall of the buffer block (14), respectively.

5. A safety protection anti-falling device for construction engineering construction according to claim 4, characterized in that, The upper end face of the connecting sleeve (9) is rotatably mounted with a connecting bolt (11), and the upper end face of the connecting block (10) is provided with a connecting thread hole that mates with the connecting bolt (11).

6. A safety protection anti-falling device for construction engineering construction according to claim 5, characterized in that, Both buffer blocks (14) have support rods (19) fixedly installed on their outer walls, and the ends of the two support rods (19) are fixedly connected to the bottom wall of the connecting frame (16) on the same side.

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