Protective device for bridge maintenance and reinforcement construction

Abstract

The utility model discloses a protection device for bridge maintenance and reinforcement construction, and belongs to the technical field of bridge maintenance and reinforcement. Comprising a supporting frame, a sliding groove is formed in the supporting frame, a top column is arranged in the supporting frame, a sliding strip is fixedly connected to the rear end face of the top column and can slide in the sliding groove, a limiting groove communicated with the interior of the top column is formed in the front end face of the top column, and the top column and a blocking net move upwards at the same time. The roller frames on the blocking nets make contact with the top of the bridge opening, the jacking columns continue to move, the torsional springs deform, the blocking nets and the turnover strips turn over, and the roller frames on the two sides get close to each other and make contact with each other; due to the fact that the blocking nets on the two sides make contact with each other and cannot turn over, the positions of the moving blocks are kept unchanged, the jacking columns move, and the moving blocks extrude the rigid springs on the limiting rods; the rigid spring contracts, the blocking nets spliced on the two sides effectively block the concrete pieces, and the concrete pieces are prevented from falling off and injuring staff when the staff pass through the bridge opening during construction.

Description

Technical Field

[0001] The present application relates to the technical field of bridge repair and reinforcement, and more specifically, to a bridge repair and reinforcement construction protection device. Background Art

[0002] Bridge repair and reinforcement is a specialized engineering project designed to ensure the safe, stable and reliable operation of bridge structures. The process involves assessing the current state of the bridge structure, analyzing the structural strength and durability, and then taking appropriate measures to repair, reinforce and strengthen it to extend the service life of the bridge and improve its load-bearing capacity. This repair project involves the selection of structural materials and the application of construction technology to ensure that the bridge can meet the increasing traffic load and safety requirements.

[0003] The document with the prior art announcement number CN218147875U provides a bridge repair and reinforcement construction protection device, which has a snap-on connection between the protection net and the platform and is easy to disassemble and assemble.

[0004] Although the above-mentioned prior art solutions can achieve the relevant beneficial effects through the structure of the prior art, there are still the following defects: the safety of the above-mentioned bridge maintenance and reinforcement construction protection device is not very good. For example, when mechanical equipment is used to hit the bridge pier, a huge impact force is generated, causing concrete pieces to fall off. Workers working under the bridge hole can easily be hit by concrete pieces, causing unnecessary injuries.

[0005] Regarding the above-mentioned related technologies, the inventors believe that the existing bridge maintenance and reinforcement construction protection devices only play the role of supporting the bridge hole, and the safety of the devices is not very good. For example, when mechanical equipment is used to hit the bridge piers, a huge impact force is generated, causing concrete pieces to fall off. Workers working under the bridge hole can easily be hit by concrete pieces, causing unnecessary injuries.

[0006] In view of this, we propose a bridge maintenance and reinforcement construction protection device. Utility Model Content

[0007] The purpose of this application is to provide a bridge repair and reinforcement construction protection device, which solves the technical problems in the above-mentioned background technology and achieves the technical effect of a bridge repair and reinforcement construction protection device.

[0008] The technical solution of the present application provides a bridge maintenance and reinforcement construction protection device, including a support frame, a sliding groove is provided inside the support frame, a top column is provided inside the support frame, a sliding bar is fixedly connected to the rear end face of the top column, and the sliding bar can slide in the sliding groove, and a limiting groove is provided on the front end face of the top column and communicated with the inside of the top column, a plurality of limiting rods are fixedly connected to the inside of the top column, a rigid spring is provided on the outer sleeve of the limiting rod, a moving block is provided above the rigid spring, a connecting block is provided inside the limiting groove, and the connecting block is fixedly connected to the moving block, the end face of the connecting block away from the moving block is fixedly connected to a fixing frame, a fixed shaft is fixedly connected to the inside of the fixing frame, a flip bar is provided on the outer sleeve of the fixed shaft, and a barrier net is fixedly connected to the outer wall of the flip bar.

[0009] By adopting the above technical solution, multiple support frames are set on both sides of the bridge hole, and the top column can be freely extended and retracted inside the support frame, so as to facilitate adaptation to bridge holes of different heights.

[0010] Optionally, a mounting base is fixedly connected to the bottom of the support frame, a fixing plate is fixedly connected to the lower part of the support frame, a threaded rod is provided inside the sliding groove, a servo motor is fixedly connected to the bottom of the fixing plate, and the output end of the servo motor passes through the fixing plate and is fixedly connected to the threaded rod, and the sliding bar is located on the inner wall of the sliding groove and is threadedly connected to the threaded rod.

[0011] By adopting the above technical solution, the servo motor drives the output end to rotate, and the rotation of the output end drives the threaded rod to rotate. Under the limitation of the sliding groove, the rotation of the threaded rod drives the top column and the sliding bar to move upward at the same time. No manual operation is required, and it is very convenient to use.

[0012] Optionally, a torsion spring is provided inside the flip bar, one end of the torsion spring is fixedly connected to the fixed shaft, and the other end of the torsion spring is fixedly connected to the flip bar, the upper end surface of the top column is fixedly connected to a buffer top block, the movable block is slidably sleeved on the outside of the limiting rod, the end surface of the barrier net away from the flip bar is fixedly connected to a roller frame, and a roller is rotatably installed inside the roller frame.

[0013] By adopting the above technical solution, the top column and the barrier net move upward at the same time, the roller frame on the barrier net contacts the top of the bridge hole, the top column continues to move, the torsion spring deforms, the barrier net and the flip bar flip, and the roller frames on both sides approach and contact each other. Since the barrier nets on both sides are in contact with each other and cannot flip, the position of the moving block remains unchanged, the top column moves, and the moving block squeezes the rigid spring on the limit rod, and the rigid spring contracts until the buffer top block on the top column contacts the top of the bridge hole. The barrier nets spliced ​​on both sides effectively block the concrete pieces to prevent concrete pieces from falling and injuring employees when they pass through the bridge hole during construction.

[0014] One or more technical solutions provided in the technical solution of this application have at least the following technical effects or advantages:

[0015] The present application arranges a top column with a barrier net inside the support frame, and arranges multiple support frames on both sides of the bridge hole. The top column and the barrier net move upward at the same time, the roller frame on the barrier net contacts the top of the bridge hole, the top column continues to move, the torsion spring deforms, the barrier net and the flip bar flip, and the roller frames on both sides approach and contact each other. Since the barrier nets on both sides are in contact with each other and cannot flip, the position of the moving block remains unchanged, the top column moves, and the moving block squeezes the rigid spring on the limit rod, and the rigid spring contracts until the buffer top block on the top column contacts the top of the bridge hole. The barrier nets spliced ​​on both sides effectively block concrete sheets to prevent concrete sheets from falling and injuring employees when they pass through the bridge hole during construction. The rigid spring plays a good supporting and buffering role, which can effectively improve the service life of the barrier net. Moreover, the device is integrated and does not require installation. It is convenient to transport and carry, which greatly improves the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the bridge repair and reinforcement construction protection device disclosed in the embodiment of the present application;

[0017] Figure 2 It is a structural expansion diagram of the bridge repair and reinforcement construction protection device disclosed in the embodiment of the present application;

[0018] Figure 3 It is an expanded view of the external structure of the top column of the bridge repair and reinforcement construction protection device disclosed in the embodiment of the present application;

[0019] Explanation of the numbers in the figure: 1. Support frame; 2. Mounting base; 3. Fixed plate; 4. Sliding groove; 5. Threaded rod; 6. Top column; 7. Servo motor; 8. Sliding bar; 9. Buffer top block; 10. Limiting groove; 11. Limiting rod; 12. Rigid spring; 13. Moving block; 14. Connecting block; 15. Fixed frame; 16. Fixed shaft; 17. Flipping bar; 18. Torsion spring; 19. Barrier net; 20. Roller frame. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings.

[0021] Reference Figure 1-Figure 3The embodiment of the present application provides a bridge maintenance and reinforcement construction protection device, including a support frame 1, a sliding groove 4 is opened inside the support frame 1, a top column 6 is arranged inside the support frame 1, a sliding bar 8 is fixedly connected to the rear end surface of the top column 6, and the sliding bar 8 can slide in the sliding groove 4, and a limiting groove 10 is opened on the front end surface of the top column 6, and a plurality of limiting rods 11 are fixedly connected to the inside of the top column 6, and a rigid spring 12 is arranged on the outer periphery of the limiting rod 11, and a moving block 13 is arranged above the rigid spring 12, and a connecting block 14 is arranged inside the limiting groove 10, and the connecting block 14 is fixedly connected to the moving block 13, and a fixed frame 15 is fixedly connected to the end surface of the connecting block 14 away from the moving block 13, and a fixed shaft 16 is fixedly connected to the inside of the fixed frame 15, and a flip bar 17 is arranged on the outer periphery of the fixed shaft 16, and a barrier net 19 is fixedly connected to the outer wall of the flip bar 17, and a plurality of support frames 1 are arranged on both sides of the bridge hole, respectively, and the top column 6 can freely expand and contract inside the support frame 1, so as to be convenient for adapting to bridge holes of different heights.

[0022] Reference Figure 1-Figure 3 The bottom of the support frame 1 is fixedly connected with a mounting base 2, a fixing plate 3 is fixedly connected at the bottom of the support frame 1, a threaded rod 5 is provided inside the sliding groove 4, a servo motor 7 is fixedly connected to the bottom of the fixing plate 3, and the output end of the servo motor 7 passes through the fixing plate 3 and is fixedly connected to the threaded rod 5, the sliding bar 8 is located on the inner wall of the sliding groove 4 and is threadedly connected to the threaded rod 5, the servo motor 7 drives the output end to rotate when it works, and the rotation of the output end drives the threaded rod 5 to rotate, under the limit of the sliding groove 4, the threaded rod 5 rotates to drive the top column 6 and the sliding bar 8 to move upward at the same time, without manual operation, and it is very convenient to use.

[0023] Reference Figure 1-Figure 3 , a torsion spring 18 is arranged inside the flip bar 17, one end of the torsion spring 18 is fixedly connected to the fixed shaft 16, and the other end of the torsion spring 18 is fixedly connected to the flip bar 17, the upper end surface of the top column 6 is fixedly connected to the buffer top block 9, the moving block 13 is slidably sleeved on the outside of the limit rod 11, the end surface of the barrier net 19 away from the flip bar 17 is fixedly connected to the roller frame 20, and the roller is rotatably installed inside the roller frame 20, the top column 6 and the barrier net 19 move upward at the same time, the roller frame 20 on the barrier net 19 contacts the top of the bridge hole, and the top column 6 continues The torsion spring 18 moves, the barrier net 19 and the flip bar 17 flip, and the roller frames 20 on both sides approach and touch each other. Since the barrier nets 19 on both sides touch each other and cannot flip, the position of the moving block 13 remains unchanged, the top column 6 moves, and the moving block 13 squeezes the rigid spring 12 on the limit rod 11. The rigid spring 12 shrinks until the buffer top block 9 on the top column 6 contacts the top of the bridge hole. The barrier nets 19 spliced ​​on both sides effectively block the concrete pieces to prevent concrete pieces from falling and injuring employees when they pass through the bridge hole during construction.

[0024] Working principle: when in use, a plurality of support frames 1 are respectively arranged on both sides of the bridge hole, the mounting base 2 is installed and fixed, and the servo motor 7 is started. The servo motor 7 works to drive the output end to rotate, and the rotation of the output end drives the threaded rod 5 to rotate. Under the limit of the sliding groove 4, the threaded rod 5 rotates to drive the top column 6 and the sliding bar 8 to move upward at the same time until the roller frame 20 on the barrier net 19 contacts the top of the bridge hole, the top column 6 continues to move, the torsion spring 18 is deformed, the barrier net 19 and the flip bar 17 flip, and the roller frames 20 on both sides approach each other until the roller frames 20 on both sides contact together, and the top column 6 moves. Since the barrier nets 19 on both sides are in contact and cannot be flipped, the positions of the fixed frame 15, the connecting block 14 and the moving block 13 remain unchanged, and the moving block 13 squeezes the rigid spring 12 on the limiting rod 11, and the rigid spring 12 contracts until the buffer top block 9 on the top column 6 contacts the top of the bridge hole, and the barrier nets 19 spliced ​​on both sides effectively block the concrete pieces to prevent the concrete pieces from falling and injuring the employees when they pass through the bridge hole during construction.

Claims

1. A bridge maintenance and reinforcement construction protection device, comprising a support frame, characterized in that: A sliding groove is provided inside the support frame, a top column is provided inside the support frame, a sliding bar is fixedly connected to the rear end face of the top column, and the sliding bar can slide in the sliding groove, a limiting groove is provided on the front end face of the top column and communicated with the inside of the top column, a plurality of limiting rods are fixedly connected to the inside of the top column, a rigid spring is provided on the outer sleeve of the limiting rod, a moving block is provided above the rigid spring, a connecting block is provided inside the limiting groove, and the connecting block is fixedly connected to the moving block, a fixing frame is fixedly connected to the end face of the connecting block away from the moving block, a fixed shaft is fixedly connected to the inside of the fixed frame, a flip bar is provided on the outer sleeve of the fixed shaft, and a barrier net is fixedly connected to the outer wall of the flip bar.

2. The bridge repair and reinforcement construction protection device according to claim 1 is characterized by: The bottom of the support frame is fixedly connected with a mounting base, and the lower part of the support frame is fixedly connected with a fixing plate.

3. The bridge repair and reinforcement construction protection device according to claim 2 is characterized by: A threaded rod is provided inside the sliding groove, a servo motor is fixedly connected to the bottom of the fixed plate, and the output end of the servo motor passes through the fixed plate and is fixedly connected to the threaded rod, and the sliding bar is located on the inner wall of the sliding groove and is threadedly connected to the threaded rod.

4. The bridge repair and reinforcement construction protection device according to claim 1 is characterized by: A torsion spring is arranged inside the flip bar, one end of the torsion spring is fixedly connected to the fixed shaft, and the other end of the torsion spring is fixedly connected to the flip bar.

5. The bridge repair and reinforcement construction protection device according to claim 1 is characterized by: The upper end surface of the top column is fixedly connected with a buffer top block, the moving block is slidably sleeved on the outside of the limiting rod, the end surface of the barrier net away from the flip bar is fixedly connected with a roller frame, and a roller is rotatably installed inside the roller frame.

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