Safe anti-falling device for bridge construction

Abstract

The utility model relates to the technical field of bridge construction safety anti-falling devices, in particular to a bridge construction safety anti-falling device. According to the technical scheme, the device comprises a bottom plate and an ascending frame, supporting plates are fixedly connected to the two ends of the ascending frame, clamping rings are slidably connected to the upper portions of the supporting plates, long connecting rods are rotatably connected to the bottoms of the clamping rings, L-shaped connecting rods are rotatably connected to the interiors of the long connecting rods, transverse plates are fixedly connected to the interiors of the L-shaped connecting rods, and positive pole switches are fixedly connected to the interiors of the transverse plates; by means of mutual cooperation of the L-shaped connecting rod, the clamping ring and the long connecting rod, workers are better prevented from falling, safety accidents caused when the workers rise without safety protection are prevented, by means of mutual cooperation of the nylon belt and the protective net, construction tools of the workers are more conveniently prevented from falling to injure pedestrians, and the safety of the workers is improved. Pedestrians can be prevented from being injured by falling stones during construction, the safety of workers can be further protected, and the workers are prevented from falling.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction safety anti-falling devices, in particular to a bridge construction safety anti-falling device. Background Art

[0002] Bridges generally refer to structures erected across rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that are erected across mountain streams, poor geology, or to meet other transportation needs to make passage more convenient. Bridge construction is the process of building a bridge according to the design content; it mainly refers to bridge construction technology and construction organization, construction management, construction quality, etc. During bridge construction, workers may fall and cause safety accidents. At this time, a bridge construction safety anti-fall device is needed. However, the existing bridge construction safety anti-fall device still has many defects, such as: it is impossible to ensure that workers are well protected when rising, and it is impossible to ensure that the workers' construction tools or debris falling from the bridge will not fall and injure passers-by, which brings many inconveniences during use. Utility Model Content

[0003] The utility model aims to provide a bridge construction safety anti-fall device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bridge construction safety anti-fall device, comprising a base plate, a rising frame is provided above the base plate, two ends of the rising frame are fixedly connected to a support plate, a clamping ring is slidably connected to the top of the support plate, the bottom of the clamping ring is rotatably connected to a long connecting rod, the inside of the long connecting rod is rotatably connected to an L-shaped connecting rod, the inside of the L-shaped connecting rod is fixedly connected to a cross plate, the inside of the cross plate is fixedly connected to a positive switch, the bottom of the rising frame is fixedly connected to a negative switch, the negative switch is adapted to the positive switch, the four sides of the rising frame are rotatably connected to a protective net, one end of the protective net is provided with a circular buckle, one end of the base plate is fixedly connected to a limiting roller, a rotating roller is fixedly connected to the top of the base plate, a nylon belt is wrapped around the outer wall of the rotating roller, and the other end of the nylon belt passes through the limiting roller and is fixedly connected to the circular buckle.

[0005] When using a bridge construction safety anti-fall device, when workers need lifting equipment for construction, when the workers get on the lifting equipment, they first pull the clamps on both sides of the inner side of the rising frame toward the center. When the clamps are pulled, the long connecting rod at the bottom of the clamps will be driven and rise upward along the limit groove. When the long connecting rod rises, it will move upward with the L-shaped connecting rod. As the L-shaped connecting rod rises, it will also bring the cross plate up. When the clamps of the two sets of clamps are fully engaged with the square buckles, the positive switch above the cross plate will be combined with the negative switch at the bottom of the rising frame. Only then will the lifting motor be energized. When the two sets of clamps are fully in contact, the limit bolts are inserted into the inside of the clamps. At this time, the clamps can be fixed to prevent retraction, which can better prevent workers from falling and prevent workers from rising without taking safety protection. To avoid safety accidents caused by this, when the rising frame rises, since one end of the nylon belt is fixedly connected to the top of the protective net, the rising frame will drive the nylon belt to rise together, and as the nylon belt rises, it will continuously pull the nylon belt wrapped around the outer wall of the rotary roller. When it rises halfway, the nylon belt wrapped around the outer wall of the rotary roller is pulled out, and the protective net will be pulled to unfold. When the rising frame rises to the top, the protective net will be fully unfolded. When the rising frame descends, the reset spring at one end of the protective net will pull the protective net to reset, and the clockwork spring at one end of the rotary roller will drive the rotary roller to retract the nylon belt, which can more conveniently prevent the workers' construction tools from falling and injuring pedestrians. It can also prevent pedestrians from being injured by falling stones during construction, and can further protect the safety of workers and prevent them from falling.

[0006] Preferably, the bottom of the clamping ring is fixedly connected with a rolling shaft, the long connecting rod is rotatably connected to the rolling shaft, and a limiting groove is provided inside the lifting frame; the long connecting rod is provided to facilitate the power supply of the lifting motor.

[0007] Preferably, the other end of the long connecting rod is slidably connected in the limit groove. A square buckle is provided at one end of the clamp ring, and a clamp head is fixedly connected at one end of another group of clamp rings, and the clamp head is adapted to the clamp ring; the safety of workers is ensured by providing the clamp ring.

[0008] Preferably, the internal sliding connection of the square buckle is provided with a limiting bolt, an inner cavity is opened inside the rising frame, one end of the inner cavity is fixedly connected with a telescopic column, and the other end of the telescopic column is fixedly connected to the other end of the clamping ring; by providing the inner cavity, it is more convenient for workers to carry out construction.

[0009] Preferably, one end of the rotary roller is rotatably connected to a clockwork spring, a reset spring is fixedly connected to the top of the protective net, and the other end of the reset spring is fixedly connected to the inside of the rising frame; the protective net is reset by arranging the reset spring.

[0010] Preferably, four groups of limit columns are connected to the top of the base plate, the other ends of the limit columns are fixedly connected to the bottom of the rising frame, a lifting motor is fixedly connected to the top of the base plate, the other end of the lifting motor is fixedly connected to the bottom of the rising frame, and several groups of wheels are fixedly connected to the bottom of the base plate; the wheels are provided to make movement more convenient.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By setting the mutual cooperation of the L-shaped connecting rod, the clamping ring and the long connecting rod, when a bridge construction safety anti-falling device is to be used, when the workers need lifting equipment for construction, when the workers get on the lifting equipment, they first pull the clamping rings on both sides of the inner side of the rising frame toward the center. When the clamping ring is pulled, the long connecting rod at the bottom of the clamping ring will be driven and rise upward along the limit groove. When the long connecting rod rises, it will move upward with the L-shaped connecting rod. As the L-shaped connecting rod rises, it will also rise with the cross plate. When the clamping heads of the two sets of clamping rings are fully engaged with the square buckles, the positive switch above the cross plate will be combined with the negative switch at the bottom of the rising frame. Only then will the lifting motor be energized. When the two sets of clamping rings are fully in contact, the limit bolts are inserted into the inside of the clamping heads. At this time, the clamping rings can be fixed to prevent retraction, which can better prevent workers from falling and prevent safety accidents caused by workers rising without safety protection.

[0013] 2. By providing the cooperation between the nylon belt and the protective net, when the rising frame rises, since one end of the nylon belt is fixedly connected to the top of the protective net, the nylon belt will be driven to rise together when the rising frame rises. As the nylon belt rises, the nylon belt wrapped around the outer wall of the rotary roller will be continuously pulled. When it rises halfway, the nylon belt wrapped around the outer wall of the rotary roller is pulled out, and the protective net will be pulled to unfold. When the rising frame rises to the top, the protective net will be fully unfolded. When the rising frame descends, the reset spring at one end of the protective net will pull the protective net to reset, and the clockwork spring at one end of the rotary roller will drive the rotary roller to recycle the nylon belt, which can more conveniently prevent the workers' construction tools from falling and injuring pedestrians, and can also prevent pedestrians from being injured by stones falling during construction. It can also further protect the safety of workers and prevent workers from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the long connecting rod structure of the utility model;

[0017] Figure 4This is a schematic diagram of the structure of the protective net of the utility model;

[0018] Figure 5 For the utility model Figure 1 A schematic diagram of the structure;

[0019] Figure 6 For the utility model Figure 2 Schematic diagram of the structure at B;

[0020] Figure 7 It is a structural schematic diagram of the horizontal plate of the utility model.

[0021] In the figure: 1. bottom plate; 2. wheel; 3. clockwork spring; 4. nylon belt; 5. limit roller; 6. inner cavity; 7. rising frame; 8. swing roller; 9. long connecting rod; 10. L-shaped connecting rod; 11. horizontal plate; 12. positive switch; 13. protective net; 14. round buckle; 15. reset spring; 16. limit column; 17. lifting motor; 18. support plate; 19. telescopic column; 20. retaining ring; 21. rolling shaft; 22. limit groove; 23. clamping head; 24. square buckle; 25. limit bolt; 26. negative switch. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, a bridge construction safety anti-fall device comprises a bottom plate 1, a rising frame 7 is arranged above the bottom plate 1, two ends of the rising frame 7 are fixedly connected with support plates 18, a clamping ring 20 is slidably connected above the support plate 18, a long connecting rod 9 is rotatably connected to the bottom of the clamping ring 20, an L-shaped connecting rod 10 is rotatably connected inside the long connecting rod 9, a transverse plate 11 is fixedly connected inside the L-shaped connecting rod 10, a positive switch 12 is fixedly connected inside the transverse plate 11, a negative switch 26 is fixedly connected to the bottom of the rising frame 7, and the The negative pole switch 26 is adapted to the positive pole switch 12, and a protective net 13 is rotatably connected to the four sides of the rising frame 7, and a circular buckle 14 is provided at one end of the protective net 13. A limiting roller 5 is fixedly connected to one end of the base plate 1, and a rotating roller 8 is fixedly connected to the top of the base plate 1. A nylon belt 4 is wrapped around the outer wall of the rotating roller 8, and the other end of the nylon belt 4 passes through the limiting roller 5 and is fixedly connected to the circular buckle 14. The limiting roller 5 prevents the nylon belt 4 from being unevenly wound on the rotating roller 8 when being pulled by the clockwork spring 3.

[0025] The bottom of the clamping ring 20 is fixedly connected with a rolling shaft 21, the long connecting rod 9 is rotatably connected to the rolling shaft 21, and a limiting groove 22 is provided inside the rising frame 7;

[0026] The other end of the long connecting rod 9 is slidably connected in the limiting groove 22. A square buckle 24 is provided at one end of the snap ring 20, and a clamp head 23 is fixedly connected at one end of the other group of snap rings 20, and the clamp head 23 is adapted to the snap ring 20.

[0027] The working principle of a bridge construction safety anti-fall device based on Example 1 is: by providing an L-shaped connecting rod 10, a clamping ring 20 and a long connecting rod 9 to cooperate with each other, when a bridge construction safety anti-fall device is to be used, when workers need a lifting device for construction, when the workers get on the lifting device, first pull the clamping rings 20 on both sides of the inner side of the lifting frame 7 toward the center. When the clamping ring 20 is pulled, the long connecting rod 9 at the bottom of the clamping ring 20 will be driven and rise upward along the limit groove 22. When the long connecting rod 9 rises, it will bring the L-shaped connecting rod 1 0 moves upward, and with the rise of the L-shaped connecting rod 10, the horizontal plate 11 will rise. When the clamping heads 23 of the two sets of clamping rings 20 are fully engaged with the square buckles 24, the positive switch 12 above the horizontal plate 11 will be combined with the negative switch 26 at the bottom of the rising frame 7. At this time, the lifting motor 17 will be energized. When the two sets of clamping rings 20 are fully in contact, the limit bolt 25 is inserted into the inside of the clamping head 23. At this time, the clamping ring 20 can be fixed to prevent retraction, which can better prevent workers from falling and prevent safety accidents caused by workers rising without safety protection.

[0028] Embodiment 2

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the square buckle 24 is internally slidably connected with a limiting bolt 25, an inner cavity 6 is opened inside the rising frame 7, one end of the inner cavity 6 is fixedly connected with a telescopic column 19, the other end of the telescopic column 19 is fixedly connected to the other end of the retaining ring 20, one end of the rotary roller 8 is rotatably connected with a clockwork spring 3, a reset spring 15 is fixedly connected above the protective net 13, the other end of the reset spring 15 is fixedly connected to the inside of the rising frame 7, four groups of limiting columns 16 are connected above the bottom plate 1, the other end of the limiting columns 16 is fixedly connected to the bottom of the rising frame 7, a lifting motor 17 is fixedly connected above the bottom plate 1, the other end of the lifting motor 17 is fixedly connected to the bottom of the rising frame 7, and several groups of wheels 2 are fixedly connected to the bottom of the bottom plate 1.

[0030] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, by providing the mutual cooperation of the nylon belt 4 and the protection net 13, when the rising frame 7 rises, since one end of the nylon belt 4 is fixedly connected to the top of the protection net 13, the nylon belt 4 will be driven to rise together when the rising frame 7 rises. As the nylon belt 4 rises, the nylon belt 4 wrapped around the outer wall of the rotating roller 8 will be continuously pulled. When it rises halfway, the nylon belt 4 wrapped around the outer wall of the rotating roller 8 is pulled out, and the protection net 13 will be pulled to unfold. When the rising frame 7 rises to the top, the protection net 13 will be fully unfolded. When the rising frame 7 descends, the reset spring 15 at one end of the protection net 13 will pull the protection net 13 to reset, and the spring spring 3 at one end of the rotating roller 8 will drive the rotating roller 8 to recycle the nylon belt 4, which can more conveniently prevent the workers' construction tools from falling and injuring pedestrians, and can also prevent stones falling during construction from injuring pedestrians, and can further protect the safety of workers and prevent workers from falling.

[0031] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A bridge construction safety anti-fall device, comprising a base plate (1) and a rising frame (7), characterized in that: The two ends of the rising frame (7) are fixedly connected with support plates (18), the upper part of the support plate (18) is slidably connected with a snap ring (20), the bottom of the snap ring (20) is rotatably connected with a long connecting rod (9), the inside of the long connecting rod (9) is rotatably connected with an L-shaped connecting rod (10), the inside of the L-shaped connecting rod (10) is fixedly connected with a horizontal plate (11), the inside of the horizontal plate (11) is fixedly connected with a positive switch (12), and the bottom of the rising frame (7) is fixedly connected with a negative switch (26). The negative pole switch (26) is compatible with the positive pole switch (12); the lifting frame (7) is rotatably connected with a protective net (13) on all sides; a circular buckle (14) is provided at one end of the protective net (13); one end of the bottom plate (1) is fixedly connected with a limiting roller (5); a rotating roller (8) is fixedly connected above the bottom plate (1); a nylon belt (4) is wrapped around the outer wall of the rotating roller (8); the other end of the nylon belt (4) passes through the limiting roller (5) and is fixedly connected to the circular buckle (14).

2. A bridge construction safety anti-fall device according to claim 1, characterized in that: The bottom of the clamping ring (20) is fixedly connected to a rolling shaft (21), the long connecting rod (9) is rotatably connected to the rolling shaft (21), and a limiting groove (22) is provided inside the rising frame (7).

3. A bridge construction safety anti-fall device according to claim 2, characterized in that; The other end of the long connecting rod (9) is slidably connected in the limiting groove (22), one end of the clamping ring (20) is provided with a square buckle (24), and one end of another group of the clamping rings (20) is fixedly connected with a clamping head (23), and the clamping head (23) is adapted to the clamping ring (20).

4. A bridge construction safety anti-fall device according to claim 3, characterized in that: The square buckle (24) is internally slidably connected to a limit bolt (25); an inner cavity (6) is provided inside the rising frame (7); one end of the inner cavity (6) is fixedly connected to a telescopic column (19); the other end of the telescopic column (19) is fixedly connected to the other end of the clamping ring (20).

5. A bridge construction safety anti-fall device according to claim 1, characterized in that: One end of the revolving roller (8) is rotatably connected to a spring spring (3), a reset spring (15) is fixedly connected above the protective net (13), and the other end of the reset spring (15) is fixedly connected to the inside of the rising frame (7).

6. A bridge construction safety anti-fall device according to claim 1, characterized in that: Four groups of limiting columns (16) are connected to the top of the base plate (1), and the other ends of the limiting columns (16) are fixedly connected to the bottom of the rising frame (7). A lifting motor (17) is fixedly connected to the top of the base plate (1), and the other end of the lifting motor (17) is fixedly connected to the bottom of the rising frame (7). A plurality of groups of wheels (2) are fixedly connected to the bottom of the base plate (1).

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