Bridge expansion joint connecting mechanism

Abstract

The utility model relates to the technical field of bridge expansion joints, in particular to a bridge expansion joint connecting mechanism. Comprising beam bodies, an expansion joint is arranged between the beam bodies, fixing plates are fixedly connected into the beam bodies, a limiting plate is arranged between the fixing plates, and a waterproof structure is arranged between the limiting plate and the beam bodies. When the mechanism is installed, the elastic layers are limited through the installation strips firstly, then the two sides of the expansion joint are bonded with the limiting plates and the beam body together, then the limiting strips are inserted into the gap between the two elastic layers and bonded to the limiting plates, and at the moment, the waterproof strips can shield the gaps between the limiting strips and the elastic layers; through the arrangement of the elastic layer, when the beam body moves, the expansion joint is better shielded while the movement of the beam body is maintained through the elasticity of the elastic layer, and the limiting strip and the waterproof strip shield the gap in the beam body, so that the problem that the expansion joint and the mechanism are eroded by rainwater in a rainy environment is reduced, and the durability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion joints, in particular to a bridge expansion joint connection mechanism. Background Art

[0002] Bridge expansion joint: refers to the expansion joint usually set between the two beam ends, between the beam end and the abutment, or at the hinged position of the bridge to meet the requirements of bridge deck deformation. The expansion joint is required to be able to freely expand and contract in both directions parallel and perpendicular to the bridge axis, and to be firm and reliable. When vehicles pass by, they should be smooth without sudden jumps and noise.

[0003] A bridge expansion joint connection mechanism mentioned in an existing Chinese public patent (authorization announcement number: CN217923059U) includes a pair of beams, a telescopic gap is formed between the pair of beams, a pair of rubber strip clamping assemblies and rubber strips are arranged on the pair of beams, the rubber strip clamping assemblies include a fixed block, a pressure plate and a locking screw, the fixed block is installed on the beam, a rubber strip placement groove is opened on the top surface of the fixed block, a pair of lower limit grooves and screw holes are opened in the rubber strip placement groove, a pair of rotating shaft mounting plates are arranged on the top of the fixed block, a screw mounting hole is opened on the pressure plate, an upper limit groove is opened at the bottom of the pressure plate, a rotating shaft is arranged at one end of the pressure plate, and the pressure plate is movably installed between the pair of rotating shaft mounting plates through the rotating shaft.

[0004] When installing the expansion joint of the existing bridge connection mechanism, the corresponding steel bars and steel plates are first installed at the expansion joint of the bridge beam body, and then the elastic material is filled in the expansion joint, and finally a U-shaped rubber waterproof sheet is installed at the seam opening of the expansion joint. However, in order to ensure that the beam body on both sides of the expansion joint is not restricted from being squeezed, the existing waterproof sheet adopts a U-shaped setting, which makes it easy for rainwater to accumulate in the gap in rainy days and other environments, thereby causing the waterproof sheet and the expansion joint to be eroded by more rainwater. Utility Model Content

[0005] The purpose of the present application is to solve the problem that rainwater is easily accumulated in the waterproof structure of the existing bridge connection mechanism, causing rainwater erosion. The present application provides a bridge expansion joint connection mechanism.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A bridge expansion joint connection mechanism comprises a beam body, expansion joints are arranged between the beam bodies, fixing plates are fixedly connected inside the beam bodies, limiting plates are arranged between the fixing plates, and a waterproof structure is arranged between the limiting plates and the beam body.

[0008] By adopting the above technical solution, when the mechanism is used to connect the expansion joint, the fixed plates of the device are first fitted to the two sides of the beam body respectively, and then the limit plate is installed between the two fixed plates, and then the beam body and the top of the fixed plate on both sides of the expansion joint are covered by the waterproof structure, and the gap is covered by the waterproof structure on the limit plate, so that after the mechanism is installed, when the beam body moves towards the expansion joint, the gap generated by the waterproof structure is smaller and is less eroded by rainwater, thereby improving the service life of the device.

[0009] Furthermore, the waterproof structure includes an elastic layer fixedly connected to the limiting plate and the upper end of the beam body, the two elastic layers are elastic rubber plates, the limiting plate is fixedly connected with a mounting bar, and the mounting bar is fixedly connected to the elastic layer.

[0010] By adopting the above technical solution, the surface of the mechanism is covered by an elastic layer, so that the expansion joint can reduce direct contact with rainwater while maintaining the original beam extrusion characteristics, reduce rainwater erosion and damage to it caused by external force extrusion.

[0011] Furthermore, a limit strip is fixedly connected between the two elastic layers, a waterproof strip is fixedly connected to the limit strip, and the waterproof strip is fixedly connected to the elastic layer.

[0012] By adopting the above technical solution, the gaps between the elastic layers are shielded in multiple layers by the limiting strips and the waterproof strips, thereby reducing the problem of rainwater accumulation in the gaps and further reducing erosion caused by rainwater.

[0013] Furthermore, a mounting block is fixedly connected to the fixing plate, a limiting steel bar is fixedly connected to the fixing plate, and the limiting steel bar and the mounting block are both fixedly connected to the beam body.

[0014] By adopting the above technical solution, the contact between the fixed plate and the beam body is made closer through the limiting steel bars and the mounting blocks, and the force range of the beam body is increased when it is impacted, thereby reducing the impact force.

[0015] Furthermore, a sliding plate is fixedly connected to the fixed plate, and the sliding plate is slidably connected to the limiting plate.

[0016] By adopting the above technical solution, through the limitation of the sliding plate and the limiting plate, the movement of the fixed plate is more stable when the beam body drives the fixed plate to move, reducing the damage caused by the fixed plate squeezing the limiting plate.

[0017] Furthermore, a damper is fixedly connected to the fixed plate, a sliding column is slidably connected to the damper, the sliding column and the limiting plate are fixedly connected, an extrusion block is slidably connected to the limiting plate, the extrusion block is adapted to the fixed plate, a spring is sleeved on the sliding column, and both ends of the spring are respectively fixedly connected to the damper and the extrusion block.

[0018] By adopting the above technical solution, the extrusion block is pushed toward the beam body by the spring reset, thereby reducing the damage to the surface elastic layer caused by the rapid extrusion of the beam body, allowing it to adapt to the bridge environment where multiple heavy vehicles pass through, making the device more versatile during use.

[0019] Furthermore, a guide column is slidably connected to the limit plate, the guide column is fixedly connected to the extrusion block, a second spring is sleeved on the guide column, and two ends of the second spring are respectively fixedly connected to the limit plate and the extrusion block.

[0020] By adopting the above technical solution, when a truck passes over the beam body, it will move toward the expansion joint under pressure, and the spring 2 will be stressed to reduce the pressure received by the expansion joint, so that the mechanism is protected.

[0021] Furthermore, a sliding bar is slidably connected to the limiting plate, and the sliding bar is fixedly connected to the extrusion block.

[0022] By adopting the above technical solution, the sliding bar is used to limit the movement of the extrusion block, so that the extrusion block is not easily deformed when being pushed by the beam body.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, when installing the mechanism, the elastic layer is first limited by the installation strip, and then it is adhered to the limit plate and the beam body on both sides of the expansion joint, and then the limit strip is inserted into the gap between the two elastic layers and adhered to the limit plate. At this time, the waterproof strip will block the gap between the limit strip and the elastic layer, so that when the beam body moves, the elasticity of the elastic layer can better block the expansion joint while maintaining the movement of the beam body, while the limit strip and the waterproof strip block the gap on them, reducing the problem of rainwater eroding the expansion joint and the mechanism in rainy environments, thereby improving the durability of the device.

[0025] 2. In the present application, when the mechanism is installed, the limiting steel bars and the mounting blocks are first buried in the beam body. When a truck passes over the beam body, it is subjected to pressure and moves toward the expansion joint, which drives the fixed plate to move along the sliding plate toward the limiting plate, so that the fixed plate pushes the extrusion block, thereby driving the sliding column to move into the damper. At this time, the extrusion block also moves toward the extrusion block along the guide column. At this time, spring one and spring two are simultaneously subjected to force to reduce the pressure received by the expansion joint. When the truck passes by, spring one and spring two are reset, driving the extrusion block to move toward the beam body, and pushing the beam body to reset, so that the device can reduce the damage to the mechanism caused by the extrusion of the beam body during use, and reduce the damage to the surface elastic layer caused by the rapid extrusion of the beam body, so that it can adapt to the bridge environment where multiple heavy vehicles pass through, making the device more versatile during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a bridge expansion joint connection mechanism in the present application;

[0027] Figure 2 It is a schematic diagram of the internal structure of a bridge expansion joint connection mechanism in the present application;

[0028] Figure 3 It is a partial cross-sectional view of a bridge expansion joint connection mechanism in the present application;

[0029] Figure 4 This application Figure 3 Enlarged schematic diagram at point A in the middle.

[0030] Description of reference numerals:

[0031] 1. Beam body; 2. Sliding plate; 3. Limiting steel bar; 4. Limiting plate; 5. Extrusion block; 6. Mounting strip; 7. Waterproof strip; 8. Mounting block; 9. Fixed plate; 10. Damper; 11. Sliding column; 12. Spring 1; 13. Guide column; 14. Spring 2; 15. Limiting strip; 16. Elastic layer; 17. Sliding strip. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a bridge expansion joint connection mechanism.

[0034] Reference Figure 1 A bridge expansion joint connection mechanism includes a beam body 1, an expansion joint is arranged between the beam bodies 1, a fixing plate 9 is fixedly connected inside the beam body 1, a limiting plate 4 is arranged between the fixing plates 9, and a waterproof structure is arranged between the limiting plate 4 and the beam body 1.

[0035] When the mechanism is used to connect the expansion joint, the fixed plates 9 of the device are first fitted to the two sides of the beam body 1 respectively, and then the limit plate 4 is installed between the two fixed plates 9. Then, the beam body 1 and the top of the fixed plate 9 on both sides of the expansion joint are covered by the waterproof structure, and the gap is covered by the waterproof structure on the limit plate 4. After the mechanism is installed, when the beam body 1 moves relative to the expansion joint, the gap produced by the waterproof structure is smaller and is less eroded by rainwater, thereby improving the service life of the device.

[0036] Reference Figure 1 The waterproof structure includes an elastic layer 16 fixedly connected to the limit plate 4 and the upper end of the beam body 1. The two elastic layers 16 are elastic rubber plates. The limit plate 4 is fixedly connected with a mounting strip 6, and the mounting strip 6 is fixedly connected to the elastic layer 16. A limit strip 15 is fixedly connected between the two elastic layers 16, and a waterproof strip 7 is fixedly connected to the limit strip 15, and the waterproof strip 7 is fixedly connected to the elastic layer 16.

[0037] When installing the mechanism, the elastic layer 16 is first limited by the installation strip 6, and then it is adhered to the limit plate 4 and the beam body 1 on both sides of the expansion joint, and then the limit strip 15 is inserted into the gap between the two elastic layers 16 and adhered to the limit plate 4. At this time, the waterproof strip 7 will block the gap between the limit strip 15 and the elastic layer 16, so that when the beam body 1 moves, the elasticity of the elastic layer 16 can better block the expansion joint while keeping the beam body 1 moving, and the limit strip 15 and the waterproof strip 7 block the gap on them, thereby reducing the problem of rainwater eroding the expansion joint and the mechanism in rainy environments, and improving the durability of the device.

[0038] Reference Figure 2 and Figure 3 , Figure 4 , the fixing plate 9 is fixedly connected with a mounting block 8, and the fixing plate 9 is fixedly connected with a limiting steel bar 3, and the limiting steel bar 3 and the mounting block 8 are fixedly connected to the beam body 1. The fixing plate 9 is fixedly connected with a sliding plate 2, and the sliding plate 2 is slidably connected to the limiting plate 4. The fixing plate 9 is fixedly connected with a damper 10, and the damper 10 is slidably connected with a sliding column 11, and the sliding column 11 is fixedly connected to the limiting plate 4, and the limiting plate 4 is slidably connected with an extrusion block 5, and the extrusion block 5 is adapted to the fixing plate 9. The sliding column 11 is sleeved with a spring 12, and the two ends of the spring 12 are respectively fixedly connected to the damper 10 and the extrusion block 5. The limiting plate 4 is slidably connected with a guide column 13, and the guide column 13 is fixedly connected with the extrusion block 5. The guide column 13 is sleeved with a spring 2 14, and the two ends of the spring 2 14 are respectively fixedly connected to the limiting plate 4 and the extrusion block 5. The limiting plate 4 is slidably connected with a sliding bar 17, and the sliding bar 17 is fixedly connected to the extrusion block 5.

[0039] When installing the mechanism, first bury the limiting steel bars 3 and the mounting blocks 8 in the beam body 1. When a truck passes over the beam body 1, it will move toward the expansion joint under pressure, and it will drive the fixed plate 9 to move along the sliding plate 2 toward the limiting plate 4, so that the fixed plate 9 pushes the extrusion block 5, thereby driving the sliding column 11 to move toward the damper 10. At this time, the extrusion block 5 also moves toward the extrusion block 5 along the guide column 13. At this time, the spring 12 and the spring 2 14 are simultaneously stressed to reduce the pressure received by the expansion joint. When the truck passes by, the spring 12 and the spring 2 14 are reset, so that the device can reduce the damage to the mechanism caused by the extrusion of the beam body 1 during use, and reduce the damage to the surface elastic layer 16 caused by the rapid extrusion of the beam body 1, so that it can adapt to the bridge environment where multiple heavy vehicles pass, making the device more versatile during use.

[0040] Working principle: When the mechanism is used to connect the expansion joint, first, the limiting steel bar 3 and the mounting block 8 are buried in the beam body 1, and then the fixing plates 9 of the device are respectively fitted with the two sides of the beam body 1, and then the limiting plate 4 is installed between the two fixing plates 9, and then the elastic layer 16 is limited by the mounting strip 6, and then it is glued together with the limiting plate 4 and the beam body 1 on both sides of the expansion joint, and then the limiting strip 15 is inserted into the gap between the two elastic layers 16, and it is glued to the limiting plate 4, at this time, the waterproof strip 7 will cover the gap between the limiting strip 15 and the elastic layer 16;

[0041] When a truck passes over the beam 1, it will move toward the expansion joint due to pressure, and it will drive the fixed plate 9 to move along the sliding plate 2 toward the limit plate 4, so that the fixed plate 9 pushes the extrusion block 5, thereby driving the sliding column 11 to move toward the damper 10. At this time, the extrusion block 5 also moves toward the extrusion block 5 along the guide column 13. At this time, the spring 12 and the spring 2 14 are simultaneously stressed to reduce the pressure received by the expansion joint. When the truck passes by, the spring 1 12 and the spring 2 14 are reset, so that the device can reduce the damage to the mechanism caused by the extrusion of the beam 1 during use, and reduce the damage to the surface elastic layer 16 caused by the rapid extrusion of the beam 1.

Claims

1. A bridge expansion joint connection mechanism, comprising a beam body (1), characterized in that: An expansion joint is provided between the beam bodies (1), a fixing plate (9) is fixedly connected inside the beam body (1), a limiting plate (4) is provided between the fixing plates (9), and a waterproof structure is provided between the limiting plate (4) and the beam body (1); The waterproof structure comprises an elastic layer (16) fixedly connected to a limit plate (4) and the upper end of the beam body (1), the two elastic layers (16) being elastic rubber plates, a mounting strip (6) fixedly connected to the limit plate (4), and the mounting strip (6) being fixedly connected to the elastic layer (16).

2. A bridge expansion joint connection mechanism according to claim 1, characterized in that: A limit strip (15) is fixedly connected between the two elastic layers (16), a waterproof strip (7) is fixedly connected to the limit strip (15), and the waterproof strip (7) is fixedly connected to the elastic layer (16).

3. A bridge expansion joint connection mechanism according to claim 1, characterized in that: The fixing plate (9) is fixedly connected to a mounting block (8), the fixing plate (9) is fixedly connected to a limiting steel bar (3), and the limiting steel bar (3) and the mounting block (8) are both fixedly connected to the beam body (1).

4. A bridge expansion joint connection mechanism according to claim 3, characterized in that: The fixed plate (9) is fixedly connected to a sliding plate (2), and the sliding plate (2) is slidably connected to the limiting plate (4).

5. A bridge expansion joint connection mechanism according to claim 4, characterized in that: The fixed plate (9) is fixedly connected with a damper (10), the damper (10) is slidably connected with a sliding column (11), the sliding column (11) is fixedly connected with a limit plate (4), the limit plate (4) is slidably connected with an extrusion block (5), the extrusion block (5) is adapted to the fixed plate (9), the sliding column (11) is sleeved with a spring (12), and the two ends of the spring (12) are respectively fixedly connected with the damper (10) and the extrusion block (5).

6. A bridge expansion joint connection mechanism according to claim 5, characterized in that: A guide column (13) is slidably connected to the limit plate (4), and the guide column (13) is fixedly connected to the extrusion block (5). A second spring (14) is sleeved on the guide column (13), and the two ends of the second spring (14) are respectively fixedly connected to the limit plate (4) and the extrusion block (5).

7. A bridge expansion joint connection mechanism according to claim 6, characterized in that: A sliding bar (17) is slidably connected to the limiting plate (4), and the sliding bar (17) is fixedly connected to the extrusion block (5).

Images