Safety anti-falling device for building construction

Abstract

The invention relates to the technical field of anti-falling devices, and discloses a building construction safety anti-falling device which comprises a mounting plate and further comprises two pieces of supporting channel steel symmetrically and fixedly mounted on the left side and the right side of the mounting plate. And the anti-falling net is used for receiving falling objects, and one side edge of the anti-falling net is fixedly mounted on the outer surface of the mounting plate. When a heavy object or a worker falls onto the anti-falling net, the movable end of the anti-falling net pulls a fixing strip to move, a guide column installed on the lower surface of the fixing strip can move along with the fixing strip, the guide column pushes a moving block to the direction of a spring rod through a chute, so that a clamping block is separated from a clamping groove, and at the moment, a sliding frame loses constraint; by arranging the T-shaped limiting block, the anti-falling net can pull the sliding frame to integrally slide towards the mounting plate through the T-shaped limiting block after receiving a worker, so that the anti-falling net shrinks downwards, the received worker can be buffered, meanwhile, the worker can be far away from a falling point, and the worker is prevented from being hurt due to the fact that a heavy object falls subsequently.

Description

Technical Field

[0001] This invention relates to the field of fall protection devices, and more particularly to a fall protection device for construction safety. Background Technology

[0002] During construction, fall protection nets are installed on the exterior of buildings to protect workers from injuries such as falls from heights. Currently, widely used construction safety devices mainly consist of support poles and safety nets. The support poles support the safety nets, effectively preventing workers from falling further if they land on the nets.

[0003] An existing fall protection device for construction (publication number: CN217299929U) has at least the following drawbacks: The above-mentioned patent effectively reduces the impact force generated when an object falls by setting a shock-absorbing spring and a protective net in the frame and connecting them, and avoids the protective net and the installation space from breaking or detaching; since the above-mentioned patent will stop the heavy object or worker at the position where it fell after it is caught, it is easy to cause further damage to the caught object or worker if another object falls afterward. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A construction safety fall arrestor includes a mounting plate and further includes: Two supporting channel steels are symmetrically fixedly installed on the left and right sides of the mounting plate; A fall arresting net is used to catch falling objects. One side of the fall arresting net is fixedly installed on the outer surface of the mounting plate, and a support mechanism is installed on the side of the fall arresting net opposite to the mounting plate.

[0006] As a further embodiment of the present invention, the support mechanism includes a slide, which is a hollow structure, and both ends of the slide are slidably installed with the inner wall of the corresponding support channel steel, and a connecting component is installed between the slide and the fall protection net.

[0007] As a further embodiment of the present invention, the connecting component includes a fixing strip fixedly installed on the end of the fall arrestor net away from the mounting plate, the fixing strip being inserted into the interior of the slide, and a T-shaped limiting block being fixedly installed on the outer surface of the fixing strip on the side away from the fall arrestor net.

[0008] As a further embodiment of the present invention, a locking mechanism is installed between the slide and the supporting channel steel. The locking mechanism includes spring rods that are fixedly installed on the lower surfaces of both ends of the slide. A moving block is fixedly installed on the telescopic end of the spring rod. A locking block is fixedly installed on the outer surface of the moving block near the supporting channel steel. A locking groove matching the locking block is opened on the outer surface of the supporting channel steel away from the mounting plate. An unlocking component is installed between the fixing bar and the moving block.

[0009] As a further embodiment of the present invention, the unlocking component includes an inclined groove extending from top to bottom through the upper surface of the moving block, and a guide post matching the inclined groove is fixedly installed near the lower surface of the moving block on the fixing strip. The guide post is slidably installed on the inner wall of the inclined groove, and a rectangular opening for the guide post to move is provided through the lower surface of the carriage.

[0010] As a further embodiment of the present invention, a secondary fall protection mechanism is installed on the outer surface of the mounting plate near the fall protection net. The secondary fall protection mechanism includes a net roll roller that is rotatably mounted on the outer surface of the mounting plate via a torque shaft. A net cloth is wound on the outer surface of the net roll roller. A connecting strip is fixedly installed at the free end of the net cloth. A tensioning component is installed between the connecting strip and the slide.

[0011] As a further embodiment of the present invention, the pulling assembly includes a pull rope, one end of which is fixedly installed on the outer surface of the connecting strip, a support wheel is rotatably installed on the support channel steel near the outer surface of the slide, and the other end of the pull rope is fixedly installed on the outer surface of the slide after passing over the support wheel.

[0012] As a further embodiment of the present invention, a sponge board is embedded on the outer surface of the mounting plate near the fall protection net.

[0013] As a further embodiment of the present invention, a reinforcing strut is fixedly installed between the bottom of the supporting channel steel and the outer surface of the mounting plate.

[0014] The beneficial effects of this invention are as follows: 1. When a heavy object or worker falls onto the fall arrest net, the movable end of the fall arrest net will pull the fixed bar to move, so that the guide post installed on the lower surface of the fixed bar can move accordingly. The guide post will push the moving block towards the spring rod through the inclined groove, so that the locking block will disengage from the locking groove. At this time, the slide will lose its restraint, so that after the fall arrest net catches the worker, it can pull the slide as a whole towards the mounting plate through the T-shaped limit block, so that the fall arrest net will retract downward, which can buffer the caught worker and keep the worker away from the fall point to avoid subsequent heavy objects falling and injuring the worker. 2. As the slide is pulled, it will pull out the netting from the roll-up roller via the pull rope and connecting strip. Since the roll-up roller is mounted on the outside of the mounting plate via a torque shaft, when the roll-up roller is pulled, the torque of the torque shaft will be converted into a pulling force on the fall arrest net through the pull rope, preventing the fall arrest net from shrinking too quickly and providing further cushioning for the workers who are about to be caught. At the same time, the netting on the pulled-out roll-up roller can cover the top of the fall arrest net, allowing the netting to cover any falling objects and prevent them from injuring the workers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a construction safety fall arrest device proposed in this invention; Figure 2 This is a schematic diagram of the bottom structure of a construction safety fall arrest device proposed in this invention; Figure 3 This is a schematic diagram of a sponge board structure for a construction safety fall prevention device proposed in this invention; Figure 4 This is a schematic diagram of the fall protection net structure of a construction safety fall protection device proposed in this invention; Figure 5 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 6 for Figure 3 Enlarged view of the structure at point B in the middle; Figure 7 for Figure 4 Enlarged view of the structure at point C.

[0016] In the diagram: 1. Mounting plate; 2. Support channel steel; 3. Slide; 4. Fall protection net; 5. Fixing strip; 6. T-shaped limit block; 7. Spring rod; 8. Moving block; 9. Locking block; 10. Locking groove; 11. Inclined groove; 12. Guide post; 13. Net rolling roller; 14. Connecting strip; 15. Pull rope; 16. Sponge board; 17. Reinforcing strut; 18. Rectangular opening; 19. Support wheel. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] See attached document Figure 1 - Appendix Figure 7 A construction safety fall arrest device includes a mounting plate 1, and further includes: Two supporting channel steels 2 are symmetrically fixed and installed on the left and right sides of the mounting plate 1; The fall arresting net 4 is used to catch falling objects. One side of the fall arresting net 4 is fixedly installed on the outer surface of the mounting plate 1, and a support mechanism is installed on the side of the fall arresting net 4 opposite to the mounting plate 1.

[0020] In this embodiment, the support mechanism includes a slide 3, which is a hollow structure. Both ends of the slide 3 are slidably installed against the inner walls of the corresponding support channel steel 2. A connecting assembly is installed between the slide 3 and the fall arrest net 4. The connecting assembly includes a fixing strip 5 fixedly installed on the end of the fall arrest net 4 away from the mounting plate 1. The fixing strip 5 is inserted into the interior of the slide 3. A T-shaped limiting block 6 is fixedly installed on the outer surface of the fixing strip 5 away from the fall arrest net 4. A locking mechanism is installed between the slide 3 and the support channel steel 2. The locking mechanism includes spring rods 7 fixedly installed on the lower surfaces of both ends of the slide 3. The telescopic ends of the spring rods 7... A movable block 8 is fixedly installed. A locking block 9 is fixedly installed on the outer surface of the movable block 8 near the support channel steel 2. A locking groove 10 matching the locking block 9 is opened on the outer surface of the support channel steel 2 away from the mounting plate 1. An unlocking component is installed between the fixing strip 5 and the movable block 8. The unlocking component includes an inclined groove 11 that runs through the upper surface of the movable block 8 from top to bottom. A guide post 12 matching the inclined groove 11 is fixedly installed on the lower surface of the fixing strip 5 near the movable block 8. The guide post 12 is slidably installed on the inner wall of the inclined groove 11. A rectangular opening 18 for the guide post 12 to move is opened through the lower surface of the slide 3.

[0021] In use, the device is installed on the outside of the construction wall via the mounting plate 1. When a heavy object or worker falls onto the fall arrest net 4, the movable end of the fall arrest net 4 will pull the fixing bar 5 to move, so that the guide post 12 installed on the lower surface of the fixing bar 5 can move accordingly. The guide post 12 pushes the moving block 8 towards the spring rod 7 through the inclined groove 11, thereby causing the locking block 9 to disengage from the locking groove 10. At this time, the slide 3 will lose its restraint, so that after the fall arrest net 4 catches the worker, it can pull the slide 3 as a whole towards the mounting plate 1 via the T-shaped limit block 6, causing the fall arrest net 4 to retract downward, which can buffer the caught worker and keep the worker away from the fall point, preventing subsequent heavy objects from falling and injuring the worker.

[0022] In this embodiment, a secondary fall protection mechanism is installed on the outer surface of the mounting plate 1 near the fall protection net 4. The secondary fall protection mechanism includes a net roll roller 13 that is rotatably mounted on the outer surface of the mounting plate 1 via a torque shaft. The outer surface of the net roll roller 13 is wound with a net cloth. A connecting strip 14 is fixedly installed at the free end of the net cloth. A tensioning assembly is installed between the connecting strip 14 and the slide 3. The tensioning assembly includes a pull rope 15. One end of the pull rope 15 is fixedly mounted on the outer surface of the connecting strip 14. A support wheel 19 is rotatably mounted on the support channel steel 2 near the outer surface of the slide 3. The other end of the pull rope 15 passes around the support wheel 19 and is fixedly mounted on the outer surface of the slide 3.

[0023] As the slide 3 is pulled, the slide 3 will pull out the netting rolled up on the netting roller 13 through the pull rope 15 and the connecting strip 14. Since the netting roller 13 is installed on the outside of the mounting plate 1 through the torque shaft, when the netting roller 13 is pulled, the torque of the torque shaft will be converted into a pulling force on the fall arrest net 4 through the pull rope 15, which will prevent the fall arrest net 4 from shrinking too quickly and can further cushion the workers who are picked up; at the same time, the netting on the pulled-out netting roller 13 can cover the top of the fall arrest net 4, so that the netting can cover the subsequent falling objects and prevent them from injuring the workers.

[0024] In this embodiment, a sponge board 16 is embedded on the outer surface of the mounting plate 1 near the fall arrest net 4; during use, the sponge board 16 can reduce the impact force of workers hitting the mounting plate 1 and prevent workers from being hit by secondary impacts.

[0025] In this embodiment, a reinforcing strut 17 is fixedly installed between the bottom of the supporting channel steel 2 and the outer surface of the mounting plate 1. The reinforcing strut 17 can enhance the supporting effect of the supporting channel steel 2 and ensure the stability of the supporting channel steel 2.

[0026] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: When in use, the device is installed on the outside of the construction wall by the mounting plate 1. When a heavy object or worker falls onto the fall protection net 4, the movable end of the fall protection net 4 will pull the fixing bar 5 to move, so that the guide post 12 installed on the lower surface of the fixing bar 5 can move accordingly. The guide post 12 pushes the moving block 8 towards the spring rod 7 through the inclined groove 11, so that the locking block 9 is disengaged from the locking groove 10. At this time, the slide 3 will lose its constraint, so that after the fall protection net 4 catches the worker, it can pull the slide 3 as a whole towards the mounting plate 1 by the T-shaped limit block 6, so that the fall protection net 4 retracts downward, which can buffer the caught worker and keep the worker away from the fall point, so as to avoid the subsequent heavy object falling and injuring the worker. As the slide 3 is pulled, the slide 3 will pull out the netting rolled up on the netting roller 13 through the pull rope 15 and the connecting strip 14. Since the netting roller 13 is installed on the outside of the mounting plate 1 through the torque shaft, when the netting roller 13 is pulled, the torque of the torque shaft will be converted into a pulling force on the fall arrest net 4 through the pull rope 15, which will prevent the fall arrest net 4 from shrinking too quickly and can further cushion the workers who are picked up; at the same time, the netting on the pulled-out netting roller 13 can cover the top of the fall arrest net 4, so that the netting can cover the subsequent falling objects and prevent them from injuring the workers.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A construction safety fall arrest device, comprising a mounting plate (1), characterized in that, Also includes: Two supporting channel steels (2) are symmetrically fixed on the left and right sides of the mounting plate (1); A fall arresting net (4) is used to catch falling objects. One side of the fall arresting net (4) is fixedly installed on the outer surface of the mounting plate (1). A support mechanism is installed on the side of the fall arresting net (4) opposite to the mounting plate (1).

2. The construction safety fall arrest device according to claim 1, characterized in that, The support mechanism includes a slide (3), which is a hollow structure, and both ends of the slide (3) are slidably installed on the inner wall of the corresponding support channel steel (2). A connecting component is installed between the slide (3) and the fall protection net (4).

3. A construction safety fall arrest device according to claim 2, characterized in that, The connecting component includes a fixing strip (5) fixedly installed on the end of the fall protection net (4) away from the mounting plate (1). The fixing strip (5) is inserted into the interior of the slide (3). A T-shaped limiting block (6) is fixedly installed on the outer surface of the fixing strip (5) away from the fall protection net (4).

4. A construction safety fall arrest device according to claim 3, characterized in that, A locking mechanism is installed between the slide (3) and the support channel steel (2). The locking mechanism includes spring rods (7) fixedly installed on the lower surfaces of both ends of the slide (3). A moving block (8) is fixedly installed on the telescopic end of the spring rod (7). A locking block (9) is fixedly installed on the outer surface of the moving block (8) near the support channel steel (2). A slot (10) matching the locking block (9) is opened on the outer surface of the support channel steel (2) away from the mounting plate (1). An unlocking component is installed between the fixing strip (5) and the moving block (8).

5. A construction safety fall arrestor according to claim 4, characterized in that, The unlocking component includes a sloping groove (11) that runs from top to bottom through the upper surface of the moving block (8). The fixing strip (5) is fixedly installed with a guide post (12) that matches the sloping groove (11) near the lower surface of the moving block (8). The guide post (12) is slidably installed on the inner wall of the sloping groove (11). The lower surface of the slide (3) is provided with a rectangular opening (18) for the guide post (12) to move.

6. A construction safety fall arrestor according to claim 5, characterized in that, A secondary fall protection mechanism is installed on the outer surface of the mounting plate (1) near the fall protection net (4). The secondary fall protection mechanism includes a net roll roller (13) that is rotatably mounted on the outer surface of the mounting plate (1) via a torque shaft. The outer surface of the net roll roller (13) is wrapped with a net cloth. A connecting strip (14) is fixedly installed at the free end of the net cloth. A tensioning component is installed between the connecting strip (14) and the slide (3).

7. A construction safety fall arrestor according to claim 6, characterized in that, The pulling assembly includes a pull rope (15), one end of which is fixedly installed on the outer surface of the connecting bar (14), and a support wheel (19) is rotatably installed on the outer surface of the support channel steel (2) near the slide (3). The other end of the pull rope (15) passes around the support wheel (19) and is fixedly installed on the outer surface of the slide (3).

8. A construction safety fall arrestor according to claim 1, characterized in that, The outer surface of the mounting plate (1) near the fall protection net (4) is fitted with a sponge board (16).

9. A construction safety fall arrestor according to claim 1, characterized in that, A reinforcing strut (17) is fixedly installed between the bottom of the supporting channel steel (2) and the outer surface of the mounting plate (1).

Images