Transverse anti-falling beam anti-seismic elastic limiting mechanism

Abstract

The utility model discloses an anti-seismic elastic limiting mechanism for a transverse anti-falling beam, which belongs to the technical field of bridge engineering and is characterized by comprising a first anti-falling beam and a second anti-falling beam, the top of the first anti-falling beam is bolted with a first mounting plate, and the bottom of the second anti-falling beam is bolted with a second mounting plate. An adjusting mechanism is welded to the top of the first mounting plate, the surface of the adjusting mechanism is movably connected with the inner wall of the second mounting plate, an elastic assembly is bolted to the top of the first mounting plate, and the top of the elastic assembly is bolted to the bottom of the second mounting plate; the anti-seismic elastic limiting mechanism solves the problems that when an existing anti-seismic elastic limiting mechanism of the transverse anti-falling beam is used, the action stroke of the elastic limiting mechanism is not convenient to adjust according to the actual working condition, the limiting effect is difficult to achieve accurately under earthquakes or vibration of different intensities, and the elastic limiting mechanism in the transverse anti-falling beam is prone to loosening when being subjected to external force, so that the anti-seismic effect is poor. And the stability of the whole structure is inconvenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, and in particular to an elastic limiting mechanism for preventing beams from falling laterally and resisting seismic events. Background Technology

[0002] The elastic limiting mechanism for transverse anti-fall beam seismic resistance is a safety device applied to bridge structures. It aims to enhance the stability and safety of bridges under disasters such as earthquakes. This mechanism absorbs and dissipates seismic energy through the elastic deformation of elastic elements. When the bridge undergoes lateral displacement, it can provide a certain restraining force to limit its excessive lateral displacement and prevent the main beam from slipping off the piers or abutments. At the same time, it allows the bridge to undergo elastic displacement within a reasonable range to buffer the seismic impact force, reduce stress concentration and damage to the bridge structure caused by earthquakes, and thus ensure the overall integrity of the bridge under severe conditions such as earthquakes and its subsequent normal use.

[0003] During an earthquake, the rigid body between the beam and the pier is prone to relative displacement during the vibration, causing the beam to detach from the pier and fall. In addition, the bridge is also prone to breakage during the vibration, which is quite dangerous.

[0004] An existing patent (publication number: CN214656296U) discloses an embedded elastic anti-falling beam device for highway design, including a bridge and piers. The bottom surface of the bridge has a No. 2 sliding groove and two No. 4 sliding grooves. A No. 2 slider is slidably connected in the No. 2 sliding groove. A No. 2 spring is symmetrically arranged on both sides of the No. 2 sliding groove. A No. 1 sliding groove is opened on both sides of the pier. A No. 1 slider is slidably connected in the No. 1 sliding groove. A No. 1 spring is symmetrically arranged on the upper and lower sides of the No. 1 sliding groove. This device can reduce the amplitude of lateral and vertical movement of the bridge when it vibrates, reduce the probability of the bridge detaching from the pier due to vibration, effectively achieve the effect of seismic resistance, thereby preventing beam fall and bridge breakage.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, the existing elastic limiting mechanisms for transverse anti-fall beams are often not easy to adjust according to actual working conditions. Under earthquakes or vibrations of varying intensities, they are difficult to accurately exert their limiting function. Furthermore, the elastic limiting mechanisms in transverse anti-fall beams are prone to loosening under external forces, making it difficult to maintain the overall structural stability.

[0006] To address this, an elastic limiting mechanism for transverse anti-fall beam seismic resistance is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide an elastic limiting mechanism for seismic resistance of transverse anti-fall beams, which can solve the problems that existing elastic limiting mechanisms for seismic resistance of transverse anti-fall beams are mostly inconvenient to adjust the working stroke of the elastic limiting mechanism according to the actual working conditions, and are difficult to accurately play the limiting role under earthquakes or vibrations of different intensities. In addition, the elastic limiting mechanism in the transverse anti-fall beam is prone to loosening when subjected to external forces, which is not convenient to maintain the stability of the overall structure.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an elastic limiting mechanism for seismic resistance of a transverse anti-fall beam, comprising a first anti-fall beam and a second anti-fall beam, wherein a first mounting plate is bolted to the top of the first anti-fall beam, a second mounting plate is bolted to the bottom of the second anti-fall beam, an adjustment mechanism is welded to the top of the first mounting plate, the surface of the adjustment mechanism is movably connected to the inner wall of the second mounting plate, an elastic component is bolted to the top of the first mounting plate, and the top of the elastic component is bolted to the bottom of the second mounting plate;

[0009] The adjusting mechanism includes a first nut, a second nut, and a reinforcing screw. The bottom of the reinforcing screw is welded to the top of the first mounting plate, and the surface of the reinforcing screw is movably connected to the inner wall of the second mounting plate. The inner wall of the second nut is threadedly connected to the surface of the reinforcing screw, and the surface of the reinforcing screw is threadedly connected to the inner wall of the first nut.

[0010] Preferably, the elastic component includes a spring frame and a damping rod, the bottom of the damping rod being bolted to the top of the first mounting plate, the top of the damping rod being bolted to the bottom of the second mounting plate, the spring frame being sleeved on the surface of the damping rod, the top of the spring frame being welded to the bottom of the second mounting plate, and the bottom of the spring frame being welded to the top of the first mounting plate.

[0011] Preferably, a stabilizing component is bolted to the top of the first mounting plate, and the surface of the stabilizing component is movably connected to the inner wall of the second mounting plate.

[0012] Preferably, the stabilizing component includes a limiting block and a stabilizing block, the bottom of the limiting block is bolted to the top of the stabilizing block, the bottom of the stabilizing block is bolted to the top of the first mounting plate, and the surface of the stabilizing block is movably connected to the inner wall of the second mounting plate.

[0013] Preferably, the inner wall of the second mounting plate is provided with a movable groove for use with the stabilizing block, and the inner wall of the second mounting plate is provided with a movable hole for use with the reinforcing screw.

[0014] Preferably, the bottom of the second nut contacts the top of the second mounting plate, and the bottom of the first nut contacts the top of the second nut.

[0015] Preferably, the inner wall of the first anti-fall beam is rotatably connected to a first connecting assembly, and the surface of the first connecting assembly is rotatably connected to a first pre-installation frame.

[0016] Preferably, the inner wall of the second anti-fall beam is rotatably connected to a second connecting assembly, and the surface of the second connecting assembly is rotatably connected to a second pre-installation frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By setting an adjustment mechanism, the distance between the first mounting plate and the second mounting plate can be adjusted, thereby flexibly adjusting the stroke of the elastic component. This allows the first and second anti-fall beams to change the range and force of the elastic component according to different seismic conditions and bridge vibration amplitude, so as to more effectively limit the lateral displacement of the bridge under various complex stress conditions.

[0019] 2. By setting up a first mounting plate and a second mounting plate, and bolting the first mounting plate to the top of the elastic component and the second mounting plate to the bottom of the elastic component, this application ensures that the elastic component is stably connected between the first anti-fall beam and the second anti-fall beam. When the bridge encounters lateral external forces such as earthquakes, the elastic component can fully absorb and dissipate energy through its own elastic deformation, providing reliable buffering and limiting protection for the bridge, and improving the safety and stability of the bridge structure under disaster conditions. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the elastic limiting mechanism for the transverse anti-fall beam of this utility model;

[0021] Figure 2 This is a structural diagram of the adjustment mechanism of this utility model;

[0022] Figure 3 This is a structural diagram of the first nut of this utility model;

[0023] Figure 4 This is a structural diagram of the stabilizing component of this utility model;

[0024] Figure 5 This is a structural diagram of the second mounting plate of this utility model.

[0025] In the figure, 1. First anti-fall beam; 2. Adjustment mechanism; 201. First nut; 202. Second nut; 203. Reinforcing screw; 3. Elastic component; 301. Spring frame; 302. Damping rod; 4. Stabilizing component; 401. Limiting block; 402. Stabilizing block; 5. Second anti-fall beam; 6. First mounting plate; 7. Second mounting plate; 8. Movable groove; 9. Movable hole; 10. First connecting component; 11. First pre-installation frame; 12. Second connecting component; 13. Second pre-installation frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] An elastic limiting mechanism for seismic resistance of a transverse anti-fall beam includes a first anti-fall beam 1 and a second anti-fall beam 5. A first mounting plate 6 is bolted to the top of the first anti-fall beam 1, and a second mounting plate 7 is bolted to the bottom of the second anti-fall beam 5. An adjustment mechanism 2 is welded to the top of the first mounting plate 6, and the surface of the adjustment mechanism 2 is movably connected to the inner wall of the second mounting plate 7. An elastic component 3 is bolted to the top of the first mounting plate 6, and the top of the elastic component 3 is bolted to the bottom of the second mounting plate 7.

[0029] The adjusting mechanism 2 includes a first nut 201, a second nut 202, and a reinforcing screw 203. The bottom of the reinforcing screw 203 is welded to the top of the first mounting plate 6. The surface of the reinforcing screw 203 is movably connected to the inner wall of the second mounting plate 7. The inner wall of the second nut 202 is threadedly connected to the surface of the reinforcing screw 203. The surface of the reinforcing screw 203 is threadedly connected to the inner wall of the first nut 201.

[0030] In this embodiment: By setting an adjustment mechanism 2, the first nut 201, the second nut 202, and the reinforcing screw 203 in the adjustment mechanism 2 cooperate with each other to adjust the distance between the first mounting plate 6 and the second mounting plate 7, thereby flexibly adjusting the stroke of the elastic component 3. This allows the first anti-fall beam 1 and the second anti-fall beam 5 to change the range and force of the elastic component 3 according to different earthquake conditions and bridge vibration amplitudes, so as to more effectively limit the lateral displacement of the bridge under various complex stress conditions. By setting the first mounting plate 6 and the second mounting plate 7, and the bolted connection between the first mounting plate 6 and the top of the elastic component 3 and the second mounting plate 7 and the bottom of the elastic component 3, it is ensured that the elastic component 3 is stably connected between the first anti-fall beam 1 and the second anti-fall beam 5. When the bridge encounters lateral external forces such as earthquakes, the elastic component 3 can fully absorb and consume energy through its own elastic deformation, providing reliable buffering and limiting protection for the bridge, and improving the safety and stability of the bridge structure under disaster conditions.

[0031] Specifically, such as Figure 2As shown, the elastic component 3 includes a spring frame 301 and a damping rod 302. The bottom of the damping rod 302 is bolted to the top of the first mounting plate 6, and the top of the damping rod 302 is bolted to the bottom of the second mounting plate 7. The spring frame 301 is sleeved on the surface of the damping rod 302. The top of the spring frame 301 is welded to the bottom of the second mounting plate 7, and the bottom of the spring frame 301 is welded to the top of the first mounting plate 6.

[0032] Specifically, such as Figure 4 As shown, a stabilizing component 4 is bolted to the top of the first mounting plate 6, and the surface of the stabilizing component 4 is movably connected to the inner wall of the second mounting plate 7.

[0033] Specifically, such as Figure 4 As shown, the stabilizing component 4 includes a limiting block 401 and a stabilizing block 402. The bottom of the limiting block 401 is bolted to the top of the stabilizing block 402, the bottom of the stabilizing block 402 is bolted to the top of the first mounting plate 6, and the surface of the stabilizing block 402 is movably connected to the inner wall of the second mounting plate 7.

[0034] In this embodiment: the spring frame 301 and the damping rod 302 in the elastic component 3 work together. The damping rod 302 can effectively consume vibration energy, while the spring frame 301 enhances the elastic buffering effect. The two work together to better cope with lateral external forces of different intensities, further improving the limitation and buffering capacity of the bridge's lateral displacement. The limiting block 401 and the stabilizing block 402 of the stabilizing component 4 are set to keep the first mounting plate 6 and the second mounting plate 7 stable during relative movement, avoiding deviation or shaking, ensuring that the elastic component 3 and the adjusting mechanism 2 can play a stable role, and improving the reliability of the entire elastic limiting mechanism under complex working conditions.

[0035] Specifically, such as Figure 5 As shown, the inner wall of the second mounting plate 7 is provided with a movable groove 8 that cooperates with the stabilizing block 402, and the inner wall of the second mounting plate 7 is provided with a movable hole 9 that cooperates with the reinforcing screw 203.

[0036] Specifically, such as Figure 2 As shown, the bottom of the second nut 202 contacts the top of the second mounting plate 7, and the bottom of the first nut 201 contacts the top of the second nut 202.

[0037] In this embodiment: the movable groove 8 opened on the inner wall of the second mounting plate 7 facilitates the movement of the stabilizing block 402 through the movable groove 8 on the inner wall of the second mounting plate 7; the movable hole 9 opened on the inner wall of the second mounting plate 7 facilitates the movement of the reinforcing screw 203 through the movable hole 9 on the inner wall of the second mounting plate 7; and the contact arrangement between the second nut 202 and the second mounting plate 7, and between the first nut 201 and the second nut 202, ensures stable force transmission between the first nut 201 and the second nut 202 during adjustment, which is conducive to precise adjustment of the stroke of the elastic component 3.

[0038] Specifically, such as Figure 1 As shown, the inner wall of the first anti-fall beam 1 is rotatably connected to the first connecting assembly 10, and the surface of the first connecting assembly 10 is rotatably connected to the first pre-installation frame 11.

[0039] Specifically, such as Figure 1 As shown, the inner wall of the second anti-fall beam 5 is rotatably connected to the second connecting assembly 12, and the surface of the second connecting assembly 12 is rotatably connected to the second pre-installation frame 13.

[0040] In this embodiment, the first anti-fall beam 1 is rotatably connected to the first pre-assembly frame 11 via the first connecting component 10, and the second anti-fall beam 5 is rotatably connected to the second pre-assembly frame 13 via the second connecting component 12. This arrangement facilitates better adaptation to the slight displacement and deformation of the bridge structure caused by factors such as temperature changes during bridge use, thereby enhancing the adaptability of the entire anti-fall beam structure.

[0041] Working principle: During the use of the first anti-fall beam 1 and the second anti-fall beam 5, the adjustment mechanism 2 is set up. The first nut 201, the second nut 202 and the reinforcing screw 203 in the adjustment mechanism 2 cooperate with each other to adjust the distance between the first mounting plate 6 and the second mounting plate 7, thereby flexibly adjusting the stroke of the elastic component 3. This allows the first anti-fall beam 1 and the second anti-fall beam 5 to change the range and force of the elastic component 3 according to different earthquake conditions and bridge vibration amplitude. Thus, under various complex stress conditions, it can more effectively limit the lateral displacement of the bridge. By setting the first mounting plate 6 and the second mounting plate 7, and the bolted connection between the first mounting plate 6 and the top of the elastic component 3 and the second mounting plate 7 and the bottom of the elastic component 3, it is ensured that the elastic component 3 is firmly connected between the first anti-fall beam 1 and the second anti-fall beam 5. When the bridge encounters lateral external forces such as earthquakes, the elastic component 3 can fully absorb and dissipate energy through its own elastic deformation, providing reliable buffer and limiting protection for the bridge, and improving the safety and stability of the bridge structure under disaster conditions.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elastic limiting mechanism for seismic resistance of a transverse anti-fall beam, comprising a first anti-fall beam (1) and a second anti-fall beam (5), characterized in that: The top of the first anti-fall beam (1) is bolted with a first mounting plate (6), the bottom of the second anti-fall beam (5) is bolted with a second mounting plate (7), the top of the first mounting plate (6) is welded with an adjustment mechanism (2), the surface of the adjustment mechanism (2) is movably connected to the inner wall of the second mounting plate (7), the top of the first mounting plate (6) is bolted with an elastic component (3), and the top of the elastic component (3) is bolted to the bottom of the second mounting plate (7); The adjustment mechanism (2) includes a first nut (201), a second nut (202), and a reinforcing screw (203). The bottom of the reinforcing screw (203) is welded to the top of the first mounting plate (6), and the surface of the reinforcing screw (203) is movably connected to the inner wall of the second mounting plate (7). The inner wall of the second nut (202) is threadedly connected to the surface of the reinforcing screw (203), and the surface of the reinforcing screw (203) is threadedly connected to the inner wall of the first nut (201).

2. The elastic limiting mechanism for transverse anti-fall beam seismic resistance according to claim 1, characterized in that: The elastic component (3) includes a spring frame (301) and a damping rod (302). The bottom of the damping rod (302) is bolted to the top of the first mounting plate (6), and the top of the damping rod (302) is bolted to the bottom of the second mounting plate (7). The spring frame (301) is sleeved on the surface of the damping rod (302). The top of the spring frame (301) is welded to the bottom of the second mounting plate (7), and the bottom of the spring frame (301) is welded to the top of the first mounting plate (6).

3. The elastic limiting mechanism for transverse anti-fall beam seismic resistance according to claim 1, characterized in that: A stabilizing component (4) is bolted to the top of the first mounting plate (6), and the surface of the stabilizing component (4) is movably connected to the inner wall of the second mounting plate (7).

4. The elastic limiting mechanism for transverse anti-fall beam seismic resistance according to claim 3, characterized in that: The stabilizing component (4) includes a limiting block (401) and a stabilizing block (402). The bottom of the limiting block (401) is bolted to the top of the stabilizing block (402). The bottom of the stabilizing block (402) is bolted to the top of the first mounting plate (6). The surface of the stabilizing block (402) is movably connected to the inner wall of the second mounting plate (7).

5. The elastic limiting mechanism for transverse anti-fall beam seismic resistance according to claim 4, characterized in that: The inner wall of the second mounting plate (7) is provided with a movable groove (8) that cooperates with the stabilizing block (402), and the inner wall of the second mounting plate (7) is provided with a movable hole (9) that cooperates with the reinforcing screw (203).

6. The elastic limiting mechanism for transverse anti-fall beam seismic resistance according to claim 1, characterized in that: The bottom of the second nut (202) contacts the top of the second mounting plate (7), and the bottom of the first nut (201) contacts the top of the second nut (202).

7. The elastic limiting mechanism for transverse anti-fall beam seismic resistance according to claim 1, characterized in that: The inner wall of the first anti-fall beam (1) is rotatably connected to a first connecting assembly (10), and the surface of the first connecting assembly (10) is rotatably connected to a first pre-installation frame (11).

8. The elastic limiting mechanism for transverse anti-fall beam seismic resistance according to claim 1, characterized in that: The inner wall of the second anti-fall beam (5) is rotatably connected to a second connecting assembly (12), and the surface of the second connecting assembly (12) is rotatably connected to a second pre-installation frame (13).

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