Anti-falling device for municipal engineering bridge construction

Abstract

The utility model relates to the technical field of bridge construction protection, in particular to an anti-falling device for municipal engineering bridge construction, which comprises a plurality of mounting columns, supporting rods are fixedly mounted on the mounting columns, pulleys are rotatably connected onto the supporting rods, connecting ropes are slidably connected onto the pulleys, one ends of the connecting ropes are fixedly connected with balancing weights, and the other ends of the connecting ropes are fixedly connected with the balancing weights. And a plurality of buffer rods are fixedly mounted in the multiple mounting columns, limiting plates are fixedly mounted in the multiple mounting columns, and the other ends of the connecting ropes are fixedly connected with a bearing plate. According to the device, a bearing plate can catch a falling worker, a protective air cushion on the bearing plate plays a role in buffering, a protective net can protect the worker, the bearing plate moves downwards under pressure, a balancing weight is pulled upwards by a connecting rope, a limiting plate can prevent the balancing weight from being pulled out, and a plurality of buffering rods are arranged in a mounting column; and the balancing weight is blocked by the buffer rod in the upward pulling process, so that the descending speed of the bearing plate is reduced, and the danger to workers caused by overlarge impact force is prevented.

Description

Technical Field

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

[0002] A bridge is generally composed of an upper structure, a lower structure, supports and ancillary structures. The upper structure, also known as the span structure, is the main structure for crossing obstacles; the lower structure includes abutments, piers and foundations; the supports are force transmission devices installed at the supporting locations of the span structure and the piers or abutments; the ancillary structures refer to the bridgehead cladding, conical slope protection, revetment, diversion projects, etc. Beam bridges are generally built in areas with large spans and shallow waters. They are composed of bridge columns and bridge decks. The weight of objects is transmitted from the bridge decks to the bridge columns. Arch bridges are generally built on waters with smaller spans. The bridge body is arched and generally has several bridge holes, which serve the function of flood discharge. The weight in the middle of the bridge is transmitted to both ends of the bridge, while the weight at both ends is transmitted to the middle. During bridge construction, anti-fall devices need to be installed to protect the safety of construction workers.

[0003] The Chinese patent with publication number CN217579718U discloses a bridge construction anti-fall device, which includes a protective net, the main body of which is a curved surface structure with a downward arc, and the two sides of the protective net are provided with outward expansion plates inclined to the outside of the protective net, and the outward expansion plates are provided with mounting mechanisms, which are used to connect the bridge body, and the protective net is provided with multiple leakage holes. The patent has reasonable settings, ingenious design, flexible use, convenient loading and unloading, and is convenient for the recovery and recycling of the device, and has good protection effect, avoiding accidents of construction workers during the construction process, and has strong practicality and market application prospects.

[0004] Based on the above search and combined with the prior art, we found that:

[0005] The existing device is installed on the construction site of the bridge through the installation mechanism on the top of the protective net, and then the protective net is placed on the side and bottom of the bridge. At this time, the entire protective net can cover the bridge body, which plays a protective role for the workers. However, the bridge is built at a high height. If a worker accidentally falls, it will produce a large impact force. The protective net used in the existing device has a poor buffering effect. If a worker falls directly onto the protective net, he may be injured due to excessive impact, which is not conducive to use in real life. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes an anti-fall device for municipal engineering bridge construction, the device is provided with a plurality of mounting columns, the mounting columns are rotatably connected with pulleys through support rods, the pulleys are slidably connected with connecting ropes, one end of the connecting ropes is connected with a bearing plate, and the other end of the connecting ropes is connected with a counterweight block. During bridge construction, the mounting columns are arranged on both sides of the bridge, the bearing plate is arranged under the bridge, a circle of protective nets and a plurality of protective air cushions are arranged on the bearing plate, if a worker accidentally falls, the bearing plate will catch the fallen worker, the protective air cushion on the bearing plate plays a buffering role, a circle of protective nets can protect the worker from rolling down again, the bearing plate moves downward under pressure, and the other end of the connecting rope is connected When the counterweight block is pulled upward, the limit plate can prevent the counterweight block from being pulled out. A plurality of buffer rods are arranged inside the mounting column. The counterweight block is blocked by the buffer rods during the process of being pulled upward, thereby slowing down the descending speed of the load-bearing plate and preventing the staff from being endangered by excessive impact force. A sliding bracket is connected to the load-bearing plate of the device through a pair of second connecting blocks. The sliding bracket slides in the slide groove. A pair of second springs are fixedly installed under the sliding bracket. In the process of the load-bearing plate moving downward under pressure, the second spring can play a buffering role. A telescopic damper is connected to the load-bearing plate through the first connecting block. When the load-bearing plate falls and is about to touch the ground, the telescopic damper first contacts the ground to buffer the load-bearing plate, thereby effectively protecting the staff who fall onto the load-bearing plate.

[0007] The technical solution to achieve the purpose of the utility model is: a fall prevention device for municipal engineering bridge construction, comprising a plurality of mounting columns, each of which is fixedly mounted with a support rod, a pulley is rotatably connected to the support rod, a connecting rope is slidably connected to the pulley, one end of the connecting rope is fixedly connected to a counterweight block, a plurality of buffer rods are fixedly mounted inside the plurality of mounting columns, a limiting plate is fixedly mounted inside the plurality of mounting columns, and the other end of the connecting rope is fixedly connected to a load-bearing plate.

[0008] In some embodiments, a circle of protective net is fixedly installed on the supporting plate, and a plurality of protective air cushions are fixedly installed on the supporting plate.

[0009] In some embodiments, a plurality of first connection blocks are fixedly mounted on the bottom of the carrier plate, a telescopic damper is fixedly mounted on each of the plurality of first connection blocks, and a first spring is disposed on the telescopic damper.

[0010] In some embodiments, a pair of second connection blocks are fixedly mounted on the bottom of the carrier plate, and a sliding bracket is fixedly mounted on each of the pair of second connection blocks.

[0011] In some embodiments, a sliding groove is provided on each of the plurality of mounting posts, the sliding bracket is slidably connected to the sliding groove, a pair of second springs are fixedly connected below the sliding bracket, a fixing plate is fixedly connected to the other end of the second spring, and the fixing plate is fixedly connected to the mounting post.

[0012] Compared with the prior art, the present invention has the following significant advantages:

[0013] First, the utility model aims at the existing device, which has the problem that if a worker accidentally falls, a large impact force will be generated. The buffering effect of the protective net used in the existing device is poor. If a worker falls directly onto the protective net, he may be injured due to excessive impact, which is not conducive to use in real life. The device is provided with multiple mounting columns, and the mounting columns are rotatably connected to pulleys through support rods. The pulleys are slidably connected to connecting ropes, one end of the connecting ropes is connected to a bearing plate, and the other end of the connecting ropes is connected to a counterweight. During bridge construction, mounting columns are set on both sides of the bridge, and the bearing plate is set under the bridge. A circle of protective nets and multiple protective air cushions are set on the bearing plate. If a worker accidentally falls, the bearing plate will catch the fallen worker, and the protective air cushion on the bearing plate plays a buffering role. The circle of protective nets can protect the worker from accidents. When the load-bearing plate is moved downward by the pressure, the counterweight block connected to the other end of the connecting rope is pulled upward, and the limit plate can prevent the counterweight block from being pulled out. A plurality of buffer rods are arranged inside the mounting column, and the counterweight block is blocked by the buffer rods during the upward pulling process, thereby slowing down the descending speed of the load-bearing plate and preventing the staff from being endangered by the excessive impact force. A pair of second springs are fixedly installed under the sliding bracket, and the second springs can play a buffering role in the process of the load-bearing plate moving downward by the pressure. A telescopic damper is connected under the load-bearing plate through the first connecting block. When the load-bearing plate falls and is about to touch the ground, the telescopic damper first contacts the ground to buffer the load-bearing plate, thereby effectively protecting the staff who fall onto the load-bearing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure from a first viewing angle provided in one embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure from a second viewing angle provided in one embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of a bearing plate provided in one embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the mounting column structure provided in one embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the pulley structure provided in one embodiment of the utility model;

[0020] Figure 6 It is a schematic diagram of the internal structure of the installation column provided in one embodiment of the utility model.

[0021] Explanation of the accompanying drawings: 1. Mounting column; 2. Support rod; 3. Pulley; 4. Connecting rope; 5. Counterweight; 6. Buffer rod; 7. Limit plate; 8. Load-bearing plate; 9. Protective net; 10. Protective air cushion; 11. First connecting block; 12. Telescopic damper; 13. First spring; 14. Second connecting block; 15. Sliding bracket; 16. Slide groove; 17. Fixed plate; 18. Second spring. DETAILED DESCRIPTION

[0022] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0023] The utility model provides an anti-falling device for municipal engineering bridge construction through improvement. The technical solution of the utility model is:

[0024] like Figure 1-Figure 6As shown, a fall prevention device for municipal engineering bridge construction includes multiple mounting columns 1, multiple mounting columns 1 are fixedly mounted with support rods 2, the support rods 2 are rotatably connected with pulleys 3, the pulleys 3 are slidably connected with connecting ropes 4, one end of the connecting rope 4 is fixedly connected with a counterweight 5, multiple buffer rods 6 are fixedly mounted inside the multiple mounting columns 1, limit plates 7 are fixedly mounted inside the multiple mounting columns 1, the other end of the connecting rope 4 is fixedly connected with a bearing plate 8, a circle of protective nets 9 are fixedly mounted on the bearing plate 8, and multiple protective air cushions 10 are fixedly mounted on the bearing plate 8. The device is provided with multiple mounting columns 1, the mounting columns 1 are rotatably connected with pulleys 3 through the support rods 2, the pulleys 3 are slidably connected with connecting ropes 4, one end of the connecting rope 4 is connected to the bearing plate 8, and the other end of the connecting rope 4 is connected to Counterweight block 5, during bridge construction, installation column 1 is set on both sides of the bridge, and the bearing plate 8 is set under the bridge. A circle of protective net 9 and multiple protective air cushions 10 are set on the bearing plate 8. If a worker accidentally falls, the bearing plate 8 will catch the fallen worker, and the protective air cushion 10 on the bearing plate 8 plays a buffering role. The circle of protective net 9 can protect the worker from rolling down again. The bearing plate 8 moves downward under pressure, and the counterweight block 5 connected to the other end of the connecting rope 4 is pulled upward. The limit plate 7 can prevent the counterweight block 5 from being pulled out. Multiple buffer rods 6 are set inside the installation column 1. The counterweight block 5 is blocked by the buffer rod 6 during the upward pulling process, which slows down the descending speed of the bearing plate 8 and prevents excessive impact force from causing danger to the workers.

[0025] like Figure 1-Figure 3 As shown, a plurality of first connecting blocks 11 are fixedly installed at the bottom of the bearing plate 8, and a telescopic damper 12 is fixedly installed on each of the plurality of first connecting blocks 11, and a first spring 13 is arranged on the telescopic damper 12. A pair of second connecting blocks 14 are fixedly installed at the bottom of the bearing plate 8, and a sliding bracket 15 is fixedly installed on each of the pair of second connecting blocks 14. A plurality of mounting columns 1 are provided with a slide groove 16, and the sliding bracket 15 is slidably connected to the slide groove 16. A pair of second springs 18 are fixedly connected below the sliding bracket 15, and the other end of the second spring 18 is fixedly connected to a fixing plate 17, and the fixing plate 17 is connected to the mounting The column 1 is fixedly connected, and a sliding bracket 15 is connected to the bottom of the bearing plate 8 of the device through a pair of second connecting blocks 14. The sliding bracket 15 slides in the slide groove 16, and a pair of second springs 18 are fixedly installed below the sliding bracket 15. In the process of the bearing plate 8 moving downward under pressure, the second spring 18 can play a buffering role. A telescopic damper 12 is connected to the bottom of the bearing plate 8 through the first connecting block 11. When the bearing plate 8 falls to the ground and is about to touch the ground, the telescopic damper 12 first contacts the ground to buffer the bearing plate 8, which can effectively protect the staff who fall onto the bearing plate 8.

[0026] The specific working method is: the device is provided with a plurality of mounting columns 1, each of which is rotatably connected to a pulley 3 through a support rod 2, a connecting rope 4 is slidably connected to the pulley 3, one end of the connecting rope 4 is connected to a bearing plate 8, and the other end of the connecting rope 4 is connected to a counterweight 5. During bridge construction, the mounting columns 1 are arranged on both sides of the bridge, and the bearing plate 8 is arranged under the bridge. A circle of protective net 9 and a plurality of protective air cushions 10 are arranged on the bearing plate 8. If a worker accidentally falls, the bearing plate 8 will catch the fallen worker, and the protective air cushion 10 on the bearing plate 8 plays a buffering role. A circle of protective net 9 can protect the worker from rolling down again. The bearing plate 8 moves downward under pressure, and the counterweight 5 connected to the other end of the connecting rope 4 is pulled upward. The limit plate 7 can prevent the counterweight 5 from rolling down again. The weight block 5 is pulled out, and a plurality of buffer rods 6 are arranged inside the mounting column 1. The counterweight block 5 is blocked by the buffer rods 6 during the upward pulling process, thereby slowing down the descending speed of the load-bearing plate 8 and preventing the staff from being endangered by the excessive impact force. A sliding bracket 15 is connected to the load-bearing plate 8 of the device through a pair of second connecting blocks 14. The sliding bracket 15 slides in the slide groove 16. A pair of second springs 18 are fixedly installed below the sliding bracket 15. In the process of the load-bearing plate 8 moving downward under pressure, the second springs 18 can play a buffering role. A telescopic damper 12 is connected to the load-bearing plate 8 through the first connecting block 11. When the load-bearing plate 8 falls to the point of being about to touch the ground, the telescopic damper 12 first contacts the ground to buffer the load-bearing plate 8, thereby effectively protecting the staff who fall onto the load-bearing plate 8.

[0027] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A fall prevention device for municipal engineering bridge construction, comprising a plurality of mounting columns (1), characterized in that: A support rod (2) is fixedly mounted on each of the plurality of mounting columns (1), a pulley (3) is rotatably connected to the support rod (2), a connecting rope (4) is slidably connected to the pulley (3), one end of the connecting rope (4) is fixedly connected to a counterweight (5), a plurality of buffer rods (6) are fixedly mounted inside each of the plurality of mounting columns (1), a limiting plate (7) is fixedly mounted inside each of the plurality of mounting columns (1), and the other end of the connecting rope (4) is fixedly connected to a bearing plate (8).

2. The anti-falling device for municipal engineering bridge construction according to claim 1 is characterized in that: A circle of protective net (9) is fixedly mounted on the bearing plate (8), and a plurality of protective air cushions (10) are fixedly mounted on the bearing plate (8).

3. The anti-falling device for municipal engineering bridge construction according to claim 1 is characterized in that: A plurality of first connection blocks (11) are fixedly mounted on the bottom of the bearing plate (8), a telescopic damper (12) is fixedly mounted on each of the plurality of first connection blocks (11), and a first spring (13) is arranged on the telescopic damper (12).

4. The anti-falling device for municipal engineering bridge construction according to claim 1 is characterized in that: A pair of second connection blocks (14) are fixedly mounted on the bottom of the bearing plate (8), and a sliding bracket (15) is fixedly mounted on each of the pair of second connection blocks (14).

5. The anti-falling device for municipal engineering bridge construction according to claim 4 is characterized in that: Each of the plurality of mounting posts (1) is provided with a slide groove (16), the sliding bracket (15) is slidably connected to the slide groove (16), a pair of second springs (18) are fixedly connected below the sliding bracket (15), the other end of the second spring (18) is fixedly connected to a fixing plate (17), and the fixing plate (17) is fixedly connected to the mounting post (1).

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