A bailey beam trestle structure with shock absorption function

Abstract

This utility model discloses a Bailey beam trestle structure with shock absorption function, relating to the field of Bailey beam trestle bridges. This Bailey beam trestle structure with shock absorption function includes: a Bailey reinforcement beam; shock-absorbing frames welded between mounting brackets; symmetrically arranged moving grooves inside the shock-absorbing frames; springs fixed to the inner walls of the moving grooves via connectors; a first toothed plate fixedly connected to the outer surface of the moving block away from the spring, the first toothed plate meshing with a first gear; and a mounting frame fixedly connected to the top of the shock-absorbing frame, with a second gear rotatably connected inside the mounting frame. This Bailey beam trestle structure with shock absorption function, by setting a first gear with a size much larger than the second gear, ensures that during shock absorption, the moving distance of the moving block is much greater than the moving distance of the slider, thereby reducing the vertical movement distance of the distribution beam under the same buffer pressure. Therefore, after a vehicle passes, the vertical movement of the distribution beam is reduced after the spring rebounds.

Description

Technical Field

[0001] This utility model relates to the field of Bailey bridge technology, specifically a Bailey bridge structure with shock absorption function. Background Technology

[0002] A Bailey bridge is a simple temporary walkway that can be built quickly and has a strong load-bearing capacity. Therefore, it is generally used in emergency disaster relief sites. A Bailey bridge is mainly composed of Bailey beams and distribution beams, with the distribution beams spliced ​​onto the surface of the Bailey beams.

[0003] To prevent the distribution beam from impacting the Bailey bridge beams, causing wear and affecting the bridge's lifespan, shock-absorbing devices are typically installed between the Bailey bridge beams and the distribution beams during construction. However, when heavy vehicles or objects pass over the Bailey bridge, the shock-absorbing devices depress a greater distance, resulting in a greater rebound distance after the vehicle passes. This causes the Bailey bridge to sway from side to side, which in turn causes the shock-absorbing devices to shake, increasing the frequency of impacts between the Bailey bridge beams and the distribution beams. Consequently, this increases the probability of wear on the Bailey bridge beams and shortens its lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a Bailey bridge structure with shock absorption function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a Bailey bridge structure with shock absorption function, comprising: Bailey reinforced beams, wherein two sets of Bailey reinforced beams are provided, and mounting frames are welded to the upper and lower ends of the two sets of Bailey reinforced beams respectively. A shock-absorbing frame is welded between the mounting frames, and a movable groove is symmetrically opened inside the shock-absorbing frame. A spring is fixed to the inner wall of the movable groove through a connector, and a movable block is fixed to the top of the spring through a connector.

[0006] A first toothed plate is fixedly connected to the outer surface of the movable block away from the spring, and the first toothed plate is engaged with a first gear.

[0007] The top of the shock-absorbing frame is fixedly connected to a mounting frame, and a second gear is rotatably connected inside the mounting frame. The bottom of the second gear passes through the mounting frame and its end face is fixedly connected to the outer surface of the first gear.

[0008] A slider is provided on the side of the second gear near the spring, and a second toothed plate is fixedly connected to the outer surface of one side of the slider. The second toothed plate meshes with the outer surface of the second gear.

[0009] The top of the slider is rotatably connected to a connecting rod, and the ends of the two sets of connecting rods are rotatably connected to a connecting plate.

[0010] Preferably, the movable block is slidably connected inside the shock-absorbing frame.

[0011] Preferably, the first toothed plate passes through the mounting frame and is slidably connected to the mounting frame, and the inner wall of the mounting frame is rotatably connected to the first gear.

[0012] Preferably, the second toothed plate passes through the mounting frame and is slidably connected to the mounting frame.

[0013] Preferably, sliding frames are symmetrically fixedly connected to both sides of the mounting frame, and the interior of the sliding frames is slidably connected to the slider.

[0014] Preferably, the inner wall of the mounting frame is welded with connecting frames at even intervals, the top outer surface of the connecting frame is fixedly connected with a shock-absorbing silicone pad, the top of the connecting frame is covered with a distribution beam, and the bottom of the distribution beam is provided with a mounting groove.

[0015] Preferably, the bottom of the distribution beam is movably engaged with the connecting plate via a mounting groove.

[0016] Preferably, the mounting bracket has mounting holes extending through both ends.

[0017] This utility model provides a Bailey beam trestle structure with shock absorption function, which has the following beneficial effects:

[0018] This invention, by setting a first gear with a size much larger than the second gear, ensures that the moving distance of the moving block is much greater than that of the slider during shock absorption. This reduces the vertical movement distance of the distribution beam under the same buffering pressure. Consequently, after a vehicle passes and the spring rebounds, the vertical movement of the distribution beam is reduced, thus decreasing the lateral swaying force of the Bailey bridge caused by the rebound of the distribution beam. This results in a lower impact frequency between the distribution beam and the connecting frame, and also reduces the wear rate of the Bailey bridge during use, effectively extending its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall bottom structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the shock-absorbing frame in this practical application.

[0023] In the diagram: 1. Bailey reinforcement beam; 2. Mounting bracket; 201. Mounting hole; 3. Connecting bracket; 301. Shock-absorbing silicone pad; 4. Distribution beam; 401. Mounting groove; 5. Shock-absorbing frame; 501. Moving groove; 502. Spring; 503. Moving block; 504. First toothed plate; 505. First gear; 506. Sliding frame; 507. Second gear; 508. Sliding block; 509. Second toothed plate; 510. Connecting rod; 511. Connecting plate; 512. Mounting frame. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] The present invention provides the following technical solution: Referring to 1-4, in this embodiment, a Bailey bridge structure with shock absorption function includes: a Bailey reinforcement beam 1, two sets of Bailey reinforcement beams 1, the upper and lower ends of the two sets of Bailey reinforcement beams 1 are respectively fixedly connected to mounting frames 2, the inner wall of the mounting frame 2 is evenly fixedly connected to connecting frames 3, the top outer surface of the connecting frame 3 is fixedly connected to a shock-absorbing silicone pad 301, the top of the connecting frame 3 is flatly covered with a distribution beam 4, the bottom of the distribution beam 4 is provided with a mounting groove 401, the bottom of the distribution beam 4 is movably engaged with the connecting plate 511 through the mounting groove 401, and the two ends of the mounting frame 2 are provided with mounting holes 201.

[0026] A shock-absorbing frame 5 is fixedly connected between the mounting brackets 2. The shock-absorbing frame 5 has symmetrically arranged moving grooves 501 inside. A spring 502 is fixedly connected to the inner wall of the moving groove 501. A moving block 503 is fixedly connected to the top of the spring 502. A first toothed plate 504 is fixedly connected to the outer surface of the moving block 503 away from the spring 502. A first gear 505 meshes with the first toothed plate 504. A mounting frame 512 is fixedly connected to the top of the shock-absorbing frame 5. A second gear 507 is rotatably connected inside the mounting frame 512. The bottom of the second gear 507 penetrates the mounting frame 512, and its end face is fixedly connected to the outer surface of the first gear 505. A slider 508 is provided on the side of the second gear 507 closest to the spring 502. A second toothed plate 509 is fixedly connected to the outer surface of one side of the slider 508. The second toothed plate 509 meshes with the outer surface of the second gear 507; the top of the slider 508 is rotatably connected to the connecting rod 510, and the ends of the two sets of connecting rods 510 are rotatably connected to the connecting plate 511; the moving block 503 is slidably connected inside the damping frame 5; the first toothed plate 504 passes through the mounting frame 512 and is slidably connected to the mounting frame 512; the inner wall of the mounting frame 512 is rotatably connected to the first gear 505; the second toothed plate 509 passes through the mounting frame 512 and is slidably connected to the mounting frame 512; the two sides of the mounting frame 512 are symmetrically fixedly connected to the sliding frame 506; the inside of the sliding frame 506 is slidably connected to the slider 508. In actual engineering, the damping components can be equipped with dampers, silicone pads and other components according to the actual situation. The damping effect of the spring 502 can only meet a small part of the damping requirements.

[0027] This utility model provides a Bailey beam trestle bridge structure with shock absorption function, and its specific working principle is as follows:

[0028] When installing the Bailey bridge, the workers first fix the Bailey reinforcement beam 1, the mounting frame 2, and the connecting frame 3 together. Then, they take out the distribution beam 4, align the mounting slot 401 with the connecting plate 511, and splice the distribution beam 4 on top of the connecting frame 3 to form the unit component of the Bailey bridge. During the construction, the workers first take out a single unit component and place it on the bank. Then, they push the unit component and take out a new unit component to connect with the previous unit component through the pin. The above steps are repeated until the two ends of the Bailey bridge composed of unit components span the river. The construction of the Bailey bridge is then completed.

[0029] When a heavy vehicle passes over the top of the Bailey bridge, the distribution beam 4 moves downward, causing the connecting rod 510 to rotate. The rotation of the connecting rod 510 causes the slider 508 to move inside the sliding frame 506. The movement of the slider 508 causes the second toothed plate 509 to move, which in turn causes the second gear 507 to rotate. The rotation of the second gear 507 then causes the first gear 505 to rotate, which in turn causes the first toothed plate 504 to move. The movement of the first toothed plate 504 compresses the spring 502, thus achieving a shock absorption effect. This is because the first gear 505 is installed in the shock absorption mechanism... The size of the first gear is much larger than that of the second gear 507, which makes the moving distance of the moving block 503 much greater than that of the slider 508 during the shock absorption process. This reduces the vertical movement distance of the distribution beam 4 under the same buffer pressure. As a result, after the vehicle passes, the vertical movement of the distribution beam 4 is reduced after the spring 502 rebounds. This reduces the lateral swaying force of the Bailey bridge caused by the rebound of the distribution beam 4, resulting in a lower impact frequency between the distribution beam 4 and the connecting frame 3. This also reduces the wear rate of the Bailey bridge during use, effectively extending the service life of the Bailey bridge.

[0030] When a heavy vehicle passes over it, the Bailey bridge will sway from side to side. Spring 502 also has a shock absorption effect when the Bailey bridge sways from side to side, and can also reduce a small amount of swaying.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Bailey bridge structure with shock absorption function, characterized in that: include: Bailey reinforced beam (1), the Bailey reinforced beam (1) is provided in two sets, the upper and lower ends of the two sets of Bailey reinforced beam (1) are respectively fixedly connected to the mounting frame (2), the mounting frame (2) is fixedly connected to the shock absorption frame (5), the shock absorption frame (5) is symmetrically provided with a moving groove (501) inside, the inner wall of the moving groove (501) is fixedly connected to a spring (502), and the top of the spring (502) is fixedly connected to a moving block (503); The outer surface of the movable block (503) away from the spring (502) is fixedly connected to a first toothed plate (504), and the first toothed plate (504) is engaged with a first gear (505). The top of the shock-absorbing frame (5) is fixedly connected to a mounting frame (512), and the inside of the mounting frame (512) is rotatably connected to a second gear (507). The bottom of the second gear (507) passes through the mounting frame (512) and its end face is fixedly connected to the outer surface of the first gear (505). A slider (508) is provided on the side of the second gear (507) near the spring (502). A second toothed plate (509) is fixedly connected to the outer surface of one side of the slider (508). The second toothed plate (509) meshes with the outer surface of the second gear (507). The top of the slider (508) is rotatably connected to a connecting rod (510), and the ends of the two sets of connecting rods (510) are rotatably connected to a connecting plate (511).

2. The Bailey bridge structure with shock absorption function according to claim 1, characterized in that: The movable block (503) is slidably connected inside the shock-absorbing frame (5).

3. A Bailey bridge structure with shock absorption function according to claim 1, characterized in that: The first toothed plate (504) passes through the mounting frame (512) and is slidably connected to the mounting frame (512). The inner wall of the mounting frame (512) is rotatably connected to the first gear (505).

4. A Bailey bridge structure with shock absorption function according to claim 1, characterized in that: The second toothed plate (509) passes through the mounting frame (512) and is slidably connected to the mounting frame (512).

5. A Bailey bridge structure with shock absorption function according to claim 1, characterized in that: The mounting frame (512) is symmetrically fixedly connected to two sides of the sliding frame (506), and the interior of the sliding frame (506) is slidably connected to the slider (508).

6. A Bailey bridge structure with shock absorption function according to claim 1, characterized in that: The inner wall of the mounting bracket (2) is fixedly connected with connecting brackets (3) at even intervals. The top outer surface of the connecting bracket (3) is fixedly connected with shock-absorbing silicone pads (301). The top of the connecting bracket (3) is covered with a distribution beam (4). The bottom of the distribution beam (4) is provided with a mounting groove (401).

7. A Bailey bridge structure with shock absorption function according to claim 6, characterized in that: The bottom of the distribution beam (4) is movably engaged with the connecting plate (511) via the mounting groove (401).

8. A Bailey bridge structure with shock absorption function according to claim 1, characterized in that: The mounting bracket (2) has mounting holes (201) through both ends.

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