Anti-falling device for bridge construction

Abstract

The utility model discloses an anti-falling device for bridge construction, which relates to the technical field of bridge anti-falling and comprises a base, a guide shaft is fixedly mounted above the base, a top plate is fixedly mounted at the top end of the guide shaft, a workbench is arranged between the top plate and a bottom plate, and the workbench is slidably connected with the guide shaft. A threaded rod is rotatably installed between the base and the top plate, the threaded rod penetrates through the workbench, the workbench is meshed with the threaded rod, a motor is fixedly installed above the top plate, the output end of the motor is fixedly connected with the threaded rod, and a reinforcing arm is movably installed between the workbench and the base. The friction force between the fence and a constructor is improved, hand slipping is avoided, meanwhile, the anti-skid pad is of a quick-release structure and convenient to replace, the stability of the workbench is improved by arranging the reinforcing arm, the reinforcing arm is provided with the self-adaptive alternating current valve, buffering can be provided when the workbench falls, rapid falling is prevented, and potential safety hazards of construction are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of bridge anti - falling, and particularly relates to a bridge construction anti - falling device. Background Art

[0002] A bridge refers to a building erected in the air to enable vehicles, pedestrians, etc. to pass smoothly. A bridge generally consists of an upper structure, a lower structure, and accessory structures. The upper structure mainly refers to the bridge span structure and the bearing system; the lower structure includes abutments, piers, and foundations; the accessory components refer to approach slabs, conical slopes, revetments, diversion works, etc.

[0003] During the bridge construction process, workers need to construct through a climbing frame. However, the existing climbing frame only uses a safety rope to prevent falling, with relatively low safety. At the same time, the climbing frame itself may also collapse, presenting certain safety hazards.

[0004] Therefore, we propose a bridge construction anti - falling device. Summary of the Utility Model

[0005] The present utility model provides a bridge construction anti - falling device to solve the technical problems raised in the above - mentioned background art.

[0006] To solve the above - mentioned technical problems, a bridge construction anti - falling device provided by the present utility model includes a base. A guide shaft is fixedly installed above the base. There are two guide shafts symmetrically arranged. The top of the guide shaft is fixedly installed with a top plate. A workbench is arranged between the top plate and the bottom plate. The guide shaft penetrates through the workbench, and the workbench is slidably connected to the guide shaft. A threaded rod is rotatably installed between the base and the top plate. The threaded rod penetrates through the workbench, and the workbench is meshed with the threaded rod. A motor is fixedly installed above the top plate. The motor is electrically connected to an external power supply. The output end of the motor is fixedly connected to the threaded rod. A strengthening arm is movably installed between the workbench and the base.

[0007] Preferably, a fence is fixedly installed above the workbench, and an anti - slip pad is sleeved above the fence. The anti - slip pad is a silica gel pad.

[0008] Preferably, one side of the anti - slip pad is adhered with a hook - and - loop fastener with a plush surface through glue, and the other side of the anti - slip pad is adhered with a hook - and - loop fastener with a hooked surface through glue. The hook - and - loop fastener with a plush surface and the hook - and - loop fastener with a hooked surface are adhesively connected.

[0009] Preferably, a rotating seat one is fixedly installed above the base. There are two rotating seats one, and the two rotating seats one are symmetrically arranged. Rotating seats two are fixedly installed at the corresponding positions of the bottom of the workbench and the rotating seats one. Connecting blades are fixedly installed on both sides of the strengthening arm. The connecting blades are respectively rotatably connected to the rotating seats one and the rotating seats two.

[0010] Preferably, the strengthening arm includes a first sleeve. A first air hole is formed at the bottom of the first sleeve. An alternating current valve is fixedly installed inside the first air hole. A piston limiting block is slidably installed inside the first sleeve. A sliding rod is fixedly installed at the top of the piston limiting block. The sliding rod is slidably connected to the first sleeve.

[0011] Preferably, the alternating current valve includes a second sleeve. The open end of the second sleeve is communicated with the first air hole. An electromagnet is fixedly installed at the bottom of the inner wall of the second sleeve. The electromagnet is electrically connected to an external power supply. A sealing plug is slidably installed at the top of the second sleeve. The sealing plug is made of iron. A spring is fixedly installed between the sealing plug and the electromagnet. A second air hole is formed at the top of the first sleeve. The second air hole is arranged between the electromagnet and the sealing plug.

[0012] The utility model has the following advantages compared with the prior art:

[0013] 1. For a bridge construction anti-falling device of the utility model, by setting the strengthening arm, the stability of the workbench is improved, and the strengthening arm is provided with an adaptive alternating current valve, which can provide buffering when the workbench falls, prevent rapid falling, and reduce the potential safety hazards in construction.

[0014] 2. For a bridge construction anti-falling device of the utility model, by setting anti-slip pads on the fence, the friction between the fence and the construction workers is increased, hand slipping is avoided, and at the same time, the anti-slip pads are of a quick-release structure, which is convenient for replacement. Description of the Drawings

[0015] Figure 1 is a structural diagram of a bridge construction anti-falling device of the utility model;

[0016] Figure 2 is a structural diagram of the base in a bridge construction anti-falling device of the utility model;

[0017] Figure 3 is a structural diagram of the strengthening arm in a bridge construction anti-falling device of the utility model;

[0018] Figure 4 is a structural diagram of the alternating current valve in a bridge construction anti-falling device of the utility model;

[0019] Reference numerals in the drawings: 1. Base; 2. Guide shaft; 3. Workbench; 4. First rotating seat; 5. Strengthening arm; 6. Second rotating seat; 7. Anti-slip pad; 8. Fence; 9. Threaded rod; 10. Motor; 11. Top plate; 12. Sliding rod; 13. Piston limiting block; 14. First air hole; 15. First sleeve; 16. Alternating current valve; 17. Second sleeve; 18. Second air hole; 19. Electromagnet; 20. Spring; 21. Sealing plug. Detailed Embodiments

[0020] Please refer to Figures 1-4, the present utility model provides a technical solution: a bridge construction anti-falling device, which includes a base 1. A guide shaft 2 is fixedly installed above the base 1. There are two symmetrically arranged guide shafts 2. The top end of the guide shaft 2 is fixedly installed with a top plate 11. A workbench 3 is arranged between the top plate 11 and the bottom plate. The guide shaft 2 penetrates through the workbench 3, and the workbench 3 is slidably connected to the guide shaft 2. A threaded rod 9 is rotatably installed between the base 1 and the top plate 11. The threaded rod 9 penetrates through the workbench 3, and the workbench 3 is meshed with the threaded rod 9. A motor 10 is fixedly installed above the top plate 11. The motor 10 is electrically connected to an external power source. The output end of the motor 10 is fixedly connected to the threaded rod 9. A strengthening arm 5 is movably installed between the workbench 3 and the base 1.

[0021] Furthermore, a fence 8 is fixedly installed above the workbench 3. An anti-slip pad 7 is sleeved above the fence 8. The anti-slip pad 7 is a silica gel pad.

[0022] Furthermore, one side of the anti-slip pad 7 is adhesively pasted with a loop fastener by glue, and the other side of the anti-slip pad 7 is adhesively pasted with a hook fastener by glue. The loop fastener and the hook fastener are adhesively connected.

[0023] Furthermore, a rotating seat one 4 is fixedly installed above the base 1. There are two rotating seats one 4, and the two rotating seats one 4 are symmetrically arranged. At the corresponding position of the bottom of the workbench 3 and the rotating seat one 4, a rotating seat two 6 is fixedly installed. Connecting blades are fixedly installed on both sides of the strengthening arm 5. The connecting blades are respectively rotatably connected to the rotating seat one 4 and the rotating seat two 6.

[0024] Furthermore, the strengthening arm 5 includes a sleeve one 15. An air hole one 14 is opened at the bottom of the sleeve one 15. An AC valve 16 is fixedly installed inside the air hole one 14. A piston limiting block 13 is slidably installed inside the sleeve one 15. A sliding rod 12 is fixedly installed at the top of the piston limiting block 13. The sliding rod 12 is slidably connected to the sleeve one 15.

[0025] Furthermore, the AC valve 16 includes a sleeve two 17. The open end of the sleeve two 17 is communicated with the air hole one 14. An electromagnet 19 is fixedly installed at the bottom of the inner wall of the sleeve two 17. The electromagnet 19 is electrically connected to an external power source. A sealing plug 21 is slidably installed at the top of the sleeve two 17. The sealing plug 21 is made of iron. A spring 20 is fixedly installed between the sealing plug 21 and the electromagnet 19. An air hole two 18 is opened at the top end of the sleeve one 15. The air hole two 18 is arranged between the electromagnet 19 and the sealing plug 21.

[0026] Working principle:

[0027] During use, the construction worker stands on the workbench 3, clips the safety rope onto the fence 8, takes out the anti-slip mat 7. The two ends of the anti-slip mat 7 are respectively provided with a fuzzy surface magic tape and a hook surface magic tape, which can be quickly installed and fixed. Start the circuit of the motor 10 and the circuit of the electromagnet 19. When the electromagnet 19 is activated, it can adsorb the sealing plug 21, causing the sealing plug 21 to slide in the sleeve two 17 and compress the spring 20, thereby connecting the air hole one 14 and the air hole two 18. The motor 10 drives the threaded rod 9 to rotate, and the threaded rod 9 meshes with the workbench 3, so that the workbench 3 rises. When reaching the construction height, turn off the circuit of the electromagnet 19, and the electromagnet 19 releases the sealing plug 21, so that the sealing plug 21 is clamped with the air hole one 14, disconnecting the air hole one 14 and the air hole two 18. At this time, since the air pressure in the sleeve one 15 is fixed, the strengthening arm 5 can ensure the stability of the workbench 3. After the construction is completed, start the reverse rotation of the motor 10, which can drive the workbench 3 to descend, and at the same time turn on the circuit of the electromagnet 19. When the workbench 3 fails and falls rapidly, the piston limit block 13 slides quickly, causing the air pressure in the sleeve one 15 to increase rapidly and exceed the exhaust volume of the air hole one 14, thus realizing the air resistance buffer structure to buffer the workbench 3, reducing the falling speed of the workbench 3, thereby reducing the potential safety hazards during construction and preventing falls.

Claims

1. A bridge construction anti-fall device, comprising a base (1), characterized in that: A guide shaft (2) is fixedly mounted above the base (1), and two guide shafts (2) are symmetrically arranged. A top plate (11) is fixedly mounted on the top of the guide shaft (2), and a workbench (3) is arranged between the top plate (11) and the bottom plate. The guide shaft (2) passes through the workbench (3), and the workbench (3) is slidably connected to the guide shaft (2). A threaded rod (9) is rotatably mounted between the base (1) and the top plate (11), and the threaded rod (9) passes through the workbench (3). The workbench (3) is meshed with the threaded rod (9). A motor (10) is fixedly mounted above the top plate (11), and the motor (10) is electrically connected to an external power supply. The output end of the motor (10) is fixedly connected to the threaded rod (9). A reinforcing arm (5) is movably mounted between the workbench (3) and the base (1).

2. A bridge construction anti-falling device according to claim 1, characterized in that: A fence (8) is fixedly installed above the workbench (3), and an anti-skid pad (7) is sleeved above the fence (8), and the anti-skid pad (7) is a silicone pad.

3. A bridge construction anti-falling device according to claim 2, characterized in that: A fleece-surface Velcro is glued to one side of the anti-skid pad (7) by means of glue, and a hook-surface Velcro is glued to the other side of the anti-skid pad (7) by means of glue, and the fleece-surface Velcro and the hook-surface Velcro are glued and connected.

4. A bridge construction anti-falling device according to claim 1, characterized in that: A rotating seat 1 (4) is fixedly mounted above the base (1), and two rotating seats 1 (4) are provided. The two rotating seats 1 (4) are symmetrically arranged. A rotating seat 2 (6) is fixedly mounted at a position corresponding to the rotating seat 1 (4) at the bottom of the workbench (3), and connecting blades are fixedly mounted on both sides of the reinforcing arm (5), and the connecting blades are rotatably connected to the rotating seat 1 (4) and the rotating seat 2 (6) respectively.

5. The anti-fall device for bridge construction according to claim 1, characterized in that: The reinforcing arm (5) comprises a sleeve (15), a vent (14) is provided at the bottom of the sleeve (15), an AC valve (16) is fixedly installed inside the vent (14), a piston limit block (13) is slidably installed inside the sleeve (15), a sliding rod (12) is fixedly installed on the top of the piston limit block (13), and the sliding rod (12) is slidably connected to the sleeve (15).

6. A bridge construction anti-falling device according to claim 5, characterized in that: The AC valve (16) comprises a second sleeve (17), the opening end of the second sleeve (17) is connected to the first air hole (14), an electromagnet (19) is fixedly installed at the bottom of the inner wall of the second sleeve (17), the electromagnet (19) is electrically connected to an external power supply, a sealing plug (21) is slidably installed on the top of the second sleeve (17), the sealing plug (21) is made of iron, a spring (20) is fixedly installed between the sealing plug (21) and the electromagnet (19), and a second air hole (18) is opened at the top of the first sleeve (15), and the second air hole (18) is arranged between the electromagnet (19) and the sealing plug (21).

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