Anti-falling device for bridge construction

Abstract

The utility model belongs to the technical field of bridge construction anti-falling devices, and provides a bridge construction anti-falling device which comprises a bottom plate, a first motor is fixedly connected to the bottom plate, the output end of the first motor is fixedly connected with a first rotating shaft, and the first rotating shaft is rotationally connected to the bottom plate in a penetrating mode. The end, away from the first motor, of the first rotating shaft is fixedly connected with a threaded rod, the threaded rod is connected with a threaded block in a penetrating and threaded mode, connecting rods are hinged to the two ends of the threaded block, telescopic rods are hinged to the ends, away from the threaded block, of the connecting rods, the telescopic rods are fixedly connected to the bottom plate, and connecting rods are fixedly connected to the telescopic rods. According to the rope net lifting device, the threaded rod rotates to drive the threaded block to move up and down, the threaded block moves up and down to drive the connecting rod to rotate, the connecting rod rotates to drive the telescopic rod to ascend and descend, and the telescopic rod drives the rope net to ascend and descend through the connecting rod, so that the height of the rope net can be adjusted according to the height of a bridge; therefore, the practicability of the anti-falling device is improved.

Description

Technical Field

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

[0002] Bridges generally refer to structures erected over 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 to cross mountain streams, poor geology, or meet other transportation needs to make travel more convenient. Bridges are generally composed of superstructures, substructures, supports, and ancillary structures. The superstructure, also known as the bridge span structure, is the main structure for crossing obstacles; the substructure includes abutments, piers, and foundations; the supports are force transmission devices installed at the supporting locations of the bridge span structure and piers or abutments; the ancillary structures refer to the bridgehead slabs, conical slope protection, revetments, diversion projects, etc. The bridge construction is the process of building a bridge according to the design content, which mainly refers to the bridge construction technology and construction organization. Safety issues are the primary issues that need to be considered during the bridge construction process.

[0003] There are also many safety protection measures adopted in the process of bridge construction, and anti-fall device is one of them. Most of the existing anti-fall devices cannot adjust the height of the rope net, and their practicality is too low. In addition, the anti-fall device cannot move automatically and needs to be manually pushed to move. This wastes physical strength and time and reduces the flexibility of the anti-fall device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a bridge construction anti-fall device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bridge construction anti-fall device, including a base plate, a motor 1 is fixedly connected to the base plate, the output end of the motor 1 is fixedly connected to a rotating shaft 1, the rotating shaft 1 penetrates and is rotatably connected to the base plate, the end of the rotating shaft 1 away from the motor 1 is fixedly connected to a threaded rod, the threaded rod penetrates and is threadedly connected to a threaded block, the two ends of the threaded block are hinged with connecting rods, the end of the connecting rod away from the threaded block is hinged with a telescopic rod, the telescopic rod is fixedly connected to the base plate, the telescopic rod is fixedly connected to a connecting rod, the connecting rod is fixedly connected to a rope net, the telescopic rod is provided with four groups, and every two groups of telescopic rods are fixedly connected by connecting rods.

[0006] As a further description of the above technical solution:

[0007] The bottom plate is fixedly connected to a support plate, and the support plate is fixedly connected to a motor 2, an output end of the motor 2 is fixedly connected to a rotating shaft 2, an end of the rotating shaft 2 away from the motor 2 is fixedly connected to a bevel gear 1, the bevel gear 1 is meshed with a bevel gear 2, the bevel gear 2 passes through and is fixedly connected to a rotating shaft 3, both ends of the rotating shaft 3 are fixedly connected to rollers, and the rotating shaft 3 is provided with two groups, one group of the rotating shaft 3 passes through and is fixedly connected to a pulley 1, the pulley 1 is meshed with a belt 1, and the end of the belt 1 away from the telescopic rod is meshed with a pulley 2, the pulley 2 passes through and is fixedly connected to a group of rotating shafts 3, the rotating shaft 3 passes through and is rotatably connected to a limiting plate, and the limiting plate is fixedly connected to the bottom plate.

[0008] As a further description of the above technical solution:

[0009] A damping rod is fixedly connected to the base plate, a spring is sleeved on the damping rod, one end of the damping rod away from the base plate is fixedly connected to a placement frame, one end of the spring is fixedly connected to the base plate, and one end of the spring away from the base plate is fixedly connected to the placement frame, and an air cushion is arranged in the placement frame.

[0010] As a further description of the above technical solution:

[0011] The telescopic rod is fixedly connected with a support rod, and one end of the support rod away from the telescopic rod is fixedly connected with a push rod.

[0012] As a further description of the above technical solution:

[0013] The air cushion is located just below the rope net.

[0014] As a further description of the above technical solution:

[0015] The damping rods are provided in four groups, and the four groups of damping rods are evenly distributed on the bottom plate.

[0016] As a further description of the above technical solution:

[0017] The rollers are provided in four groups, and each two groups of the rollers are respectively fixedly connected to the two ends of the rotating shaft three.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the threaded block is driven to move up and down by the rotation of the threaded rod, the up and down movement of the threaded block drives the connecting rod to rotate, the rotation of the connecting rod drives the telescopic rod to rise and fall, and the telescopic rod drives the rope net to rise and fall through the connecting rod. Therefore, through such an arrangement, the height of the rope net can be adjusted according to the height of the bridge, thereby improving the practicality of the anti-fall device.

[0020] 2. In the utility model, the rotation of bevel gear 2 drives a group of rotating shafts 3 to rotate, the rotation of a group of rotating shafts 3 drives two groups of rollers to rotate, and at the same time, the rotation of a group of rotating shafts 3 drives pulley 1 to rotate, the rotation of pulley 1 drives pulley 2 to rotate through belt 1, the rotation of pulley 2 drives another group of rotating shafts 3 to rotate, and the rotation of another group of rotating shafts 3 drives two groups of rollers to rotate. Therefore, through such an arrangement, the automatic movement of the anti-fall device can be achieved, thereby saving the physical strength and time of manual pushing and improving the flexibility of the anti-fall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a side perspective view of a bridge construction anti-fall device proposed by the utility model;

[0022] Figure 2 This is a top perspective view of a bridge construction anti-fall device proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a bridge construction anti-fall device proposed by the utility model Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the structure of a bridge construction anti-fall device proposed by the utility model Figure 2 .

[0025] Legend:

[0026] 1. Base plate; 2. Motor 1; 3. Rotating shaft 1; 4. Threaded rod; 5. Threaded block; 6. Connecting rod; 7. Telescopic rod; 8. Connecting rod; 9. Rope net; 10. Support plate; 11. Motor 2; 12. Rotating shaft 2; 13. Bevel gear 1; 14. Bevel gear 2; 15. Rotating shaft 3; 16. Roller; 17. Pulley 1; 18. Belt 1; 19. Pulley 2; 20. Limit plate; 21. Damping rod; 22. Spring; 23. Placement frame; 24. Air cushion; 25. Support rod; 26. Push rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-Figure 4The utility model provides an embodiment of a bridge construction anti-fall device, including a base plate 1, a motor 2 is fixedly connected to the base plate 1, an output end of the motor 2 is fixedly connected to a rotating shaft 3, the rotating shaft 3 penetrates and is rotatably connected to the base plate 1, a threaded rod 4 is fixedly connected to the end of the rotating shaft 3 away from the motor 2, the threaded rod 4 penetrates and is threadedly connected to a threaded block 5, both ends of the threaded block 5 are hinged with connecting rods 6, and an end of the connecting rod 6 away from the threaded block 5 is hinged with a telescopic rod 7, the telescopic rod 7 is fixedly connected to the base plate 1, a connecting rod 8 is fixedly connected to the telescopic rod 7, a rope net 9 is fixedly connected to the connecting rod 8, and the telescopic rod 7 is provided with four groups, and each two groups of telescopic rods 7 are fixedly connected by the connecting rod 8, and the threaded block 5 is driven to move up and down by the rotation of the threaded rod 4, and the threaded block 5 moves up and down to drive the connecting rod 6 to rotate, and the rotation of the connecting rod 6 drives the telescopic rod 7 to rise and fall, and the telescopic rod 7 drives the rope net 9 to rise and fall through the connecting rod 8. Therefore, through such an arrangement, the height of the rope net 9 can be adjusted according to the height of the bridge, thereby improving the practicability of the anti-fall device.

[0029] The bottom plate 1 is fixedly connected with a support plate 10, and a motor 2 11 is fixedly connected with the support plate 10. The output end of the motor 2 11 is fixedly connected with a rotating shaft 2 12, and the end of the rotating shaft 2 12 away from the motor 2 11 is fixedly connected with a bevel gear 13, and the bevel gear 13 is meshed with a bevel gear 2 14, and a rotating shaft 3 15 is fixedly connected through the bevel gear 2 14, and rollers 16 are fixedly connected at both ends of the rotating shaft 3 15. The rotating shaft 3 15 is provided with two groups, and one group of the rotating shaft 3 15 is fixedly connected with a pulley 17 , a belt 18 is meshedly connected to the pulley 17, and the end of the belt 18 away from the telescopic rod 7 is meshedly connected to the pulley 2 19, and the pulley 2 19 is fixedly connected to a group of rotating shafts 3 15, and the rotating shaft 3 15 is rotatably connected to a limit plate 20, and the limit plate 20 is fixedly connected to the bottom plate 1, and the rotation of the bevel gear 2 14 drives a group of rotating shafts 3 15 to rotate, and the rotation of a group of rotating shafts 3 15 drives the two groups of rollers 16 to rotate, and at the same time, the rotation of a group of rotating shafts 3 15 drives the pulley 1 17 to rotate, and the pulley The rotation of the belt 17 drives the pulley 2 19 to rotate through the belt 18, and the rotation of the pulley 2 19 drives another set of rotating shafts 3 15 to rotate, and the rotation of the other set of rotating shafts 3 15 drives the two sets of rollers 16 to rotate. Therefore, through such an arrangement, the automatic movement of the anti-fall device can be realized, thereby saving the physical strength and time of manual pushing, and improving the flexibility of the anti-fall device. A damping rod 21 is fixedly connected to the bottom plate 1, and a spring 22 is sleeved on the damping rod 21. The end of the damping rod 21 away from the bottom plate 1 is fixedly connected to the placement frame 23, one end of the spring 22 is fixedly connected to the bottom plate 1, the end of the spring 22 away from the bottom plate 1 is fixedly connected to the placement frame 23, an air cushion 24 is arranged in the placement frame 23, a support rod 25 is fixedly connected to the telescopic rod 7, the end of the support rod 25 away from the telescopic rod 7 is fixedly connected to the push rod 26, the air cushion 24 is located directly below the rope net 9, four groups of damping rods 21 are arranged, and the four groups of damping rods 21 are evenly distributed on the bottom plate 1, and four groups of rollers 16 are arranged, and every two groups of rollers 16 are respectively fixedly connected to the two ends of the rotating shaft three 15.

[0030] Working principle: First, when the anti-fall device is moved to the site of bridge construction, the motor 2 11 can be started, and the output end of the motor 2 11 drives the shaft 2 12 to rotate, and the rotation of the shaft 2 12 drives the bevel gear 1 13 to rotate, and the rotation of the bevel gear 1 13 drives the bevel gear 2 14 to rotate, and the rotation of the bevel gear 2 14 drives a group of shafts 3 15 to rotate, and the rotation of a group of shafts 3 15 drives two groups of rollers 16 to rotate, and at the same time, the rotation of a group of shafts 3 15 drives pulley 1 17 to rotate, and the rotation of pulley 1 17 drives pulley 2 19 to rotate through belt 1 18, and the rotation of pulley 2 19 drives another group of shafts 3 15 to rotate, and the rotation of another group of shafts 3 15 drives two groups of rollers 16 to rotate. Therefore, the automatic movement of the anti-fall device can be achieved through such a setting, so that the push rod can be held by hand. The rod 26 can move the anti-fall device to a suitable location. Then, when the height of the bridge is needed to adjust the height of the rope net 9, the motor 2 can be started. The output end of the motor 2 drives the shaft 3 to rotate. The rotation of the shaft 3 drives the threaded rod 4 to rotate. The rotation of the threaded rod 4 drives the threaded block 5 to move up and down. The up and down movement of the threaded block 5 drives the connecting rod 6 to rotate. The rotation of the connecting rod 6 drives the telescopic rod 7 to rise and fall. The telescopic rod 7 drives the rope net 9 to rise and fall through the connecting rod 8. Therefore, through such an arrangement, the height of the rope net 9 can be adjusted according to the height of the bridge, thereby improving the practicality of the anti-fall device. By providing the damping rod 21 and the spring 22, objects falling onto the rope net 9 can be cushioned. At the same time, the air cushion 24 on the frame 23 can further cushion objects falling onto the rope net 9.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bridge construction anti-fall device, comprising a bottom plate (1), characterized in that: The base plate (1) is fixedly connected with a motor 1 (2), the output end of the motor 1 (2) is fixedly connected with a rotating shaft 1 (3), the rotating shaft 1 (3) is rotatably connected to the base plate (1), the end of the rotating shaft 1 (3) away from the motor 1 (2) is fixedly connected with a threaded rod (4), the threaded rod (4) is threadedly connected with a threaded block (5), both ends of the threaded block (5) are hinged with connecting rods (6), the end of the connecting rod (6) away from the threaded block (5) is hinged with a telescopic rod (7), the telescopic rod (7) is fixedly connected to the base plate (1), the telescopic rod (7) is fixedly connected with a connecting rod (8), the connecting rod (8) is fixedly connected with a rope net (9), the telescopic rod (7) is provided with four groups, and every two groups of telescopic rods (7) are fixedly connected via the connecting rod (8).

2. A bridge construction anti-fall device according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to a support plate (10), the support plate (10) is fixedly connected to a second motor (11), the output end of the second motor (11) is fixedly connected to a second rotating shaft (12), the end of the second rotating shaft (12) away from the second motor (11) is fixedly connected to a first bevel gear (13), the first bevel gear (13) is meshedly connected to a second bevel gear (14), the second bevel gear (14) is penetrated and fixedly connected to a third rotating shaft (15), and the two ends of the third rotating shaft (15) are fixedly connected to rollers (1 6), the rotating shaft three (15) is provided with two groups, one group of the rotating shaft three (15) is penetrated and fixedly connected with a pulley one (17), the pulley one (17) is meshedly connected with a belt one (18), the end of the belt one (18) away from the telescopic rod (7) is meshedly connected with a pulley two (19), the pulley two (19) is penetrated and fixedly connected to the rotating shaft three (15), the rotating shaft three (15) is penetrated and rotatably connected with a limit plate (20), and the limit plate (20) is fixedly connected to the bottom plate (1).

3. The anti-fall device for bridge construction according to claim 1, characterized in that: A damping rod (21) is fixedly connected to the bottom plate (1), a spring (22) is sleeved on the damping rod (21), one end of the damping rod (21) away from the bottom plate (1) is fixedly connected to a placement frame (23), one end of the spring (22) is fixedly connected to the bottom plate (1), one end of the spring (22) away from the bottom plate (1) is fixedly connected to the placement frame (23), and an air cushion (24) is provided in the placement frame (23).

4. The anti-fall device for bridge construction according to claim 1, characterized in that: A support rod (25) is fixedly connected to the telescopic rod (7), and a push rod (26) is fixedly connected to one end of the support rod (25) away from the telescopic rod (7).

5. The anti-fall device for bridge construction according to claim 3 is characterized by: The air cushion (24) is located directly below the rope net (9).

6. The anti-fall device for bridge construction according to claim 3, characterized in that: The damping rods (21) are provided in four groups, and the four groups of damping rods (21) are evenly distributed on the bottom plate (1).

7. The anti-fall device for bridge construction according to claim 2, characterized in that: The rollers (16) are provided in four groups, and each two groups of the rollers (16) are respectively fixedly connected to the two ends of the rotating shaft three (15).

Images