A highway bridge expansion joint quick replacement assembly

Abstract

The utility model relates to the technical field of highway bridge expansion joint, concretely to a highway bridge expansion joint quick replacement assembly, including the barrier steel sheet, a plurality of installation grooves no.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge expansion joint technology, specifically a quick-replacement component for highway bridge expansion joints. Background Technology

[0002] Expansion joints are crucial for the safety of highways and bridges, and also play a positive role in waterproofing them, leading to their widespread use in road construction. However, after long-term use, the rubber strips on existing highway and bridge expansion joints tend to age and crack, losing their waterproofing effect. Therefore, it is necessary to replace the rubber strips on highway and bridge expansion joints regularly. Replacing the rubber strips on existing highway and bridge expansion joints requires specialized tools, making the replacement process very inconvenient.

[0003] Chinese patent document CN219731640U discloses a highway bridge expansion joint, comprising: a connecting frame, on the surface of which a connecting plate is snapped; and a fixing mechanism, which is disposed on the surface of the connecting plate for assembling and disassembling the expansion joint; wherein the fixing mechanism includes a fixing component disposed on the surface of the connecting plate, and a positioning component is disposed on the surface of the fixing component; in the above device, the movement of the pull rope drives the positioning rod to move away from the corresponding positioning hole, releasing the positioning state of the positioning plate, and the rotation of the drive rod drives the corresponding fixing block to move through the lead screw, and the movement of the corresponding fixing block is further controlled by the moving block. One side of the fixing block moves, causing all three fixing blocks to move simultaneously and move away from the fixing groove, thereby releasing the fixing state of the connecting plate on the connecting frame. At this time, the connecting plate is pulled away from the connecting frame to replace the rubber strip. Replacing the rubber strip on the expansion joint is a simple operation, but there are problems such as the rubber strip being directly exposed to the sun, where the ultraviolet rays have high energy and can directly damage the chemical bonds in the rubber molecules, causing the molecular chains to break. This process can cause the rubber surface to crack, harden, and lose elasticity, ultimately losing its sealing function and shortening its service life. To address this, we propose a quick replacement component for highway bridge expansion joints. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a quick replacement component for highway bridge expansion joints, including a barrier steel plate. The upper right side of the barrier steel plate has several installation grooves, and each of the several installation grooves is fitted with a bolt. The several bolts are engaged with an expansion mechanism. The expansion mechanism has a fixing group on its lower side. Several anchoring steel bars are fixedly connected to the left and right sides of the fixing group. The outer surface of the several anchoring steel bars on the left and right sides and the left and right sides of the fixing group are all provided with partition boards.

[0005] In some embodiments, the fixing group includes left and right symmetrical fixing steel plates, and each of the two fixing steel plates has a plurality of threaded grooves at the upper vertical direction of its inner cavity, and a plurality of sliders are provided on the side of the upper horizontal direction of the two fixing steel plates that are close to each other.

[0006] In some embodiments, the two fixed steel plates are respectively fixedly connected on opposite sides to the sides of several anchoring steel bars on the left and right sides, and the outer surface of the fixed steel plate on the same side and the several anchoring steel bars on the same side are slidably connected to the partition board.

[0007] In some embodiments, the telescopic mechanism includes an I-shaped steel plate, with slots two at both ends of the I-shaped steel plate. Rubber sealing strips are slidably connected to the inner cavities of the two slots two. A connecting group is provided on the side of the outer surface of the two rubber sealing strips that is far apart from each other and the lower end of the I-shaped steel plate.

[0008] In some embodiments, the connecting assembly includes a first connecting steel plate, a fixing groove is provided at the upper end of the first connecting steel plate, a plurality of threaded grooves are provided on the bottom wall of the inner cavity of the fixing groove, a plurality of telescopic groups are fixedly connected to the lower left side of the connecting steel plate, a second connecting steel plate is fixedly connected to the upper left side of the plurality of telescopic groups, a slot is provided at the left end of the first connecting steel plate and the right end of the second connecting steel plate, a plurality of mounting grooves are provided on the upper ends of the first connecting steel plate and the upper ends of the second connecting steel plate on opposite sides, and bolts are fitted into the inner cavities of the plurality of mounting grooves on both the left and right sides.

[0009] In some embodiments, the inner cavity of the fixing groove is slidably connected to the barrier steel plate, the lower side of the outer surface of the plurality of bolts is respectively engaged with the inner cavity of the plurality of threaded grooves, the inner cavities of the fixing steel plates on the left and right sides are respectively attached to the lower side of the outer surface of the connecting steel plate and the lower side of the outer surface of the connecting steel plate, the lower side of the outer surface of the plurality of bolts on the left and right sides are respectively engaged with the lower side of the plurality of threaded grooves on the left and right sides, and the inner cavities of the two slots are respectively slidably connected to the right side of the outer surface of the two rubber sealing strips that are far apart from each other.

[0010] In some embodiments, each of the telescopic assemblies includes a U-shaped clamping plate. The upper left and right sides of the upper end of each of the U-shaped clamping plates are provided with through slots. Bolts are fitted into the inner cavities of the through slots on both the left and right sides. Fixing blocks are engaged with the upper surface of the outer surfaces of the bolts on both the left and right sides. The upper ends of the fixing blocks on the left side are fixedly connected to the lower right side of the connecting steel plate. The upper ends of the fixing blocks on the right side are fixedly connected to the lower left side of the connecting steel plate. The outer surfaces of the two sliders on the same side are slidably connected to the lower left and right sides of the inner cavity of the U-shaped clamping plate on the same side.

[0011] This utility model has at least the following beneficial effects:

[0012] 1. This utility model has a barrier steel plate and a telescopic mechanism. Through the cooperation of bolt one, mounting groove two, fixing groove and threaded groove one, it not only facilitates the quick installation or disassembly of the barrier steel plate and the connecting steel plate one, but also allows the barrier steel plate to cover the rubber sealing strip, preventing the rubber sealing strip from being directly exposed to the outside, causing the rubber surface to crack, harden, lose elasticity, and ultimately lose its sealing function. It plays a protective role for the rubber sealing strip, thereby extending the service life of the rubber sealing strip.

[0013] 2. In the specific implementation process of this utility model, through the coordinated use of the fixed steel plate, threaded groove two, clamping groove two, installation groove one, bolt two, clamping groove one and expansion joint, the rubber sealing strip can be quickly replaced. Unlike traditional expansion joints, which require cutting the roadbed concrete before replacing the traditional expansion joint and then pouring concrete when damaged, which is very time-consuming, this device makes the operation convenient and quick, greatly saving the replacement time of the rubber sealing strip and improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0016] Figure 3 This is a schematic diagram of the fixing assembly of this utility model;

[0017] Figure 4 This is a schematic diagram of the telescopic mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the telescopic mechanism of this utility model from another perspective;

[0019] Figure 6 This is a schematic diagram of the connection assembly of this utility model;

[0020] Figure 7 This is a schematic diagram of the telescopic assembly of this utility model.

[0021] In the diagram: 1. Barrier wooden board; 2. Barrier steel plate; 3. Bolt 1; 4. Telescopic mechanism; 41. I-shaped steel plate; 42. Connecting assembly; 421. Connecting steel plate 1; 422. Fixing groove; 423. Threaded groove 1; 424. Installation groove 1; 425. Bolt 2; 426. Slot 1; 427. Telescopic assembly; 4271. U-shaped clamping plate; 4272. Fixing block; 4273. Through groove; 4274. Bolt 3; 428. Connecting steel plate 2; 43. Rubber sealing strip; 44. Slot 2; 5. Fixing assembly; 6. Anchoring steel bar; 7. Installation groove 2; 51. Fixing steel plate; 52. Sliding block; 53. Threaded groove 2. Detailed Implementation

[0022] 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.

[0023] Example 1:

[0024] Please see Figure 1-5 This utility model provides a technical solution: a quick replacement component for expansion joints of highway bridges, including a barrier steel plate 2. The upper right side of the barrier steel plate 2 has several installation grooves 7. Bolts 3 are fitted into the inner cavities of the several installation grooves 7. The several bolts 3 are engaged with and connected to an expansion mechanism 4. A fixing group 5 is provided on the lower side of the expansion mechanism 4. Several anchoring steel bars 6 are fixedly connected to the left and right sides of the fixing group 5. The outer surface of the several anchoring steel bars 6 on the left and right sides and the left and right sides of the fixing group 5 are provided with partition wooden boards 1.

[0025] First, several anchoring steel bars 6 are welded to the left and right sides of the fixed assembly 5. Then, the telescopic mechanism 4 is installed on the fixed assembly 5. Next, the barrier steel plate 2 is fixed to the telescopic mechanism 4 using several mounting slots 7 and bolts 3. Then, the entire device is hoisted to the junction of the roadbed. Next, two partition wooden boards 1 are inserted between the fixed assembly 5 and the several anchoring steel bars 6 on the left and right sides. Then, concrete is poured into the roadbed to bury the fixed assembly 5 and the anchoring steel bars 6. The two partition wooden boards 1 act as a barrier during the concrete pouring process, preventing concrete from entering the telescopic mechanism 4 and the barrier steel plate 2. There is no need for workers to hold wooden boards to block the concrete.

[0026] The fixing group 5 includes two symmetrically fixed steel plates 51. Each of the two fixed steel plates 51 has several threaded grooves 53 at the upper vertical direction of its inner cavity. Each of the two fixed steel plates 51 has several sliders 52 on the side of their inner cavity that is close to each other in the horizontal direction. The side of the two fixed steel plates 51 that is far apart from each other is fixedly connected to the side of several anchoring steel bars 6 that are close to each other on the left and right sides respectively. The outer surface of the fixed steel plate 51 on the same side and the several anchoring steel bars 6 on the same side are slidably connected to the partition board 1. The telescopic mechanism 4 includes an I-shaped steel plate 41. Each of the two I-shaped steel plates 41 has a slot 44 at both ends. Each of the two slots 44 has a rubber sealing strip 43 slidably connected in the inner cavity. The side of the outer surface of the two rubber sealing strips 43 that is far apart from each other and the lower end of the I-shaped steel plate 41 are connected to a connecting group 42.

[0027] First, several anchoring steel bars 6 are welded to the left and right ends of the two fixed steel plates 51. Then, the connecting assembly 42 is clamped between the slider 52 and the inner cavity of the two fixed steel plates 51, and then fixed with the threaded groove 53. When the device needs to be placed on the roadbed for grouting, the two partition wooden boards 1 are clamped between the fixed steel plates 51 and several anchoring steel bars 6 on the same side, and then concrete is poured. After the concrete solidifies, the highway bridge can be used. The bridge body will expand and contract with changes in ambient temperature, which will pull the fixed steel plates 51 and drive the connecting assembly 42 to squeeze or stretch the two rubber sealing strips 43. This device allows the bridge to expand and contract freely along its length, preventing structural cracking or damage caused by temperature stress. In areas with large temperature differences, this device can also alleviate repeated expansion and contraction caused by seasonal changes, extending the service life of the bridge. When the two rubber sealing strips 43 are squeezed and stretched, the barrier steel plate 2 will slide on the connecting group 42 and the I-shaped steel plate 41. The barrier steel plate 2 always covers the upper side of the I-shaped steel plate 41 and the two rubber sealing strips 43, preventing the two rubber sealing strips 43 from being directly exposed to the outside, causing the rubber surface to crack, harden, and lose elasticity, ultimately losing the sealing function, thereby extending the service life.

[0028] Example 2:

[0029] Please see Figure 1-7 This utility model provides a technical solution: the connecting assembly 42 includes a connecting steel plate 421, a fixing groove 422 is provided on the upper end of the connecting steel plate 421, and a plurality of threaded grooves 423 are provided on the bottom wall of the inner cavity of the fixing groove 422. A plurality of telescopic assemblies 427 are fixedly connected to the lower left side of the connecting steel plate 421, and a connecting steel plate 428 is fixedly connected to the upper left side of the plurality of telescopic assemblies 427. A slot 426 is provided on the left end of the connecting steel plate 421 and the right end of the connecting steel plate 428. A plurality of mounting grooves are provided on the sides of the connecting steel plate 421 and the connecting steel plate 428 that are far apart from each other. 424, bolts 425 are fitted into the inner cavities of several mounting slots 424 on both the left and right sides. The inner cavity of the fixing slot 422 is slidably connected to the barrier steel plate 2. The lower outer surface of several bolts 3 is respectively engaged with the inner cavity of several threaded slots 423. The inner cavities of the fixing steel plates 51 on both the left and right sides are respectively attached to the lower outer surface of the connecting steel plate 428 and the lower outer surface of the connecting steel plate 421. The lower outer surface of several bolts 425 on both the left and right sides is respectively engaged with several threaded slots 53 on both the left and right sides. The inner cavities of the two slots 426 are respectively slidably connected to the right side of the outer surface of the two rubber sealing strips 43, which are far apart from each other.

[0030] In detail, during the assembly of the device, firstly, several telescopic groups 427 on the same side are clamped onto two sliders 52 on the same side. Then, several bolts 425 are passed through the mounting grooves 424 on the connecting steel plate 421 and the connecting steel plate 428 respectively, fixing the connecting steel plate 421 and the connecting steel plate 428 onto the inner cavities of the right and left fixed steel plates 51 respectively. The barrier steel plate 2 is placed in the inner cavity of the fixing groove 422. Then, several bolts 3 are passed through the inner cavity of the mounting groove 7 and engaged with the inner cavity of the threaded groove 423 on the same side, fixing the barrier steel plate 2 onto the connecting steel plate 421. When the two rubber sealing strips 43 are damaged and need to be replaced, the bolts 3 are removed from the threaded groove 424 using a special tool. 23. To detach the inner cavity, first remove the barrier steel plate 2 from the inner cavity of the fixed groove 422, allowing the bolt 2 425 to detach from the inner cavity of the threaded groove 2 53. Then, lift the connecting steel plate 1 421, the expansion joint 427, and the connecting steel plate 2 428 out of the inner cavities of the two fixed steel plates 51. Next, pull the damaged rubber sealing strip 43 out from between the inner cavities of the first and second slots 426 and 44 on the left and right sides, respectively. Then, reinsert the new rubber sealing strip 43 into the inner cavities of the first and second slots 426 and 44, and finally reassemble it to its original state. The operation is convenient and quick, greatly saving replacement time. Unlike traditional expansion joints, which require cutting the concrete of the roadbed before replacing the traditional expansion joint and then pouring concrete, which is very time-consuming, this method is much more efficient.

[0031] Each telescopic assembly 427 includes a U-shaped clamping plate 4271. The upper left and right sides of the upper end of the U-shaped clamping plate 4271 are provided with through grooves 4273. The inner cavity of the through grooves 4273 on the left and right sides is fitted with bolts 4274. The upper surface of the outer surface of the bolts 4274 on the left and right sides is engaged with fixing blocks 4272. The upper ends of the fixing blocks 4272 on the left side are fixedly connected to the lower right side of the connecting steel plate 2 428. The upper ends of the fixing blocks 4272 on the right side are fixedly connected to the lower left side of the connecting steel plate 1 421. The outer surfaces of the two sliders 52 on the same side are slidably connected to the lower left and right sides of the inner cavity of the U-shaped clamping plate 4271 on the same side.

[0032] Furthermore, since the I-shaped steel plate 41 is fixed to the middle of the upper part of several U-shaped clamping plates 4271, and the left and right fixing blocks 4272 on the U-shaped clamping plates 4271 are fixedly connected to the lower ends of the connecting steel plate 1 421 and the connecting steel plate 2 428 respectively, when the main body of the bridge expands and contracts with changes in ambient temperature, it will pull the fixing steel plates 51 on the left and right sides to squeeze or stretch the two rubber sealing strips 43 respectively. This will cause the fixing blocks 4272 on the left and right sides to drive the bolts 3 4274 to move away from or closer to each other in the inner cavity of the two through grooves 4273, increasing the stability of the entire device and enabling the bridge to expand and contract freely in the length direction, avoiding structural cracking or damage caused by temperature stress.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 quick-replacement component for expansion joints of highway bridges, comprising a barrier steel plate (2), characterized in that: The upper right side of the barrier steel plate (2) is provided with several installation grooves (7), and bolts (3) are sleeved and connected in the inner cavity of each of the several installation grooves (7). The bolts (3) are meshed together to connect to the telescopic mechanism (4). The lower side of the telescopic mechanism (4) is provided with a fixing group (5). Several anchoring steel bars (6) are fixedly connected to the left and right sides of the fixing group (5). The upper side of the outer surface of the anchoring steel bars (6) on the left and right sides and the left and right sides of the fixing group (5) are provided with partition boards (1).

2. The quick-replacement component for highway bridge expansion joints according to claim 1, characterized in that: The fixing group (5) includes two symmetrical fixing steel plates (51). The upper vertical direction of the inner cavity of the two fixing steel plates (51) is provided with several threaded grooves (53). The upper horizontal direction of the inner cavity of the two fixing steel plates (51) is provided with several sliders (52) on the side that is close to each other.

3. The quick-replacement component for highway bridge expansion joints according to claim 2, characterized in that: The two fixed steel plates (51) are fixedly connected to the sides of several anchoring steel bars (6) on the left and right sides respectively, with the outer surface of the fixed steel plate (51) on the same side and the several anchoring steel bars (6) on the same side being slidably connected to the partition board (1).

4. The quick-replacement component for highway bridge expansion joints according to claim 2, characterized in that: The telescopic mechanism (4) includes an I-shaped steel plate (41), and slots (44) are provided at both ends of the I-shaped steel plate (41). Rubber sealing strips (43) are slidably connected to the inner cavities of the two slots (44). A connecting group (42) is provided on the side of the outer surface of the two rubber sealing strips (43) that is far apart from each other and at the lower end of the I-shaped steel plate (41).

5. The quick-replacement component for highway bridge expansion joints according to claim 4, characterized in that: The connecting assembly (42) includes a connecting steel plate (421), a fixing groove (422) is provided at the upper end of the connecting steel plate (421), a plurality of threaded grooves (423) are provided on the bottom wall of the inner cavity of the fixing groove (422), a plurality of telescopic groups (427) are fixedly connected to the lower left side of the connecting steel plate (421), a connecting steel plate (428) is fixedly connected to the upper left side of the plurality of telescopic groups (427), a slot (426) is provided at the left end of the connecting steel plate (421) and the right end of the connecting steel plate (428), a plurality of mounting grooves (424) are provided on the side of the upper end of the connecting steel plate (421) and the upper end of the connecting steel plate (428) that are far apart from each other, and bolts (425) are fitted in the inner cavity of the plurality of mounting grooves (424) on both the left and right sides.

6. The quick-replacement component for highway bridge expansion joints according to claim 5, characterized in that: The inner cavity of the fixed groove (422) is slidably connected to the barrier steel plate (2). The lower side of the outer surface of several bolts (3) is respectively engaged with the inner cavity of several threaded grooves (423). The inner cavities of the fixed steel plates (51) on the left and right sides are respectively attached to the lower side of the outer surface of the connecting steel plate (428) and the lower side of the outer surface of the connecting steel plate (421). The lower side of the outer surface of several bolts (425) on the left and right sides is respectively engaged with several threaded grooves (53) on the left and right sides. The inner cavities of the two slots (426) are respectively slidably connected to the right side of the outer surface of the two rubber sealing strips (43) that are far away from each other.

7. The quick-replacement component for highway bridge expansion joints according to claim 5, characterized in that: Each of the telescopic assemblies (427) includes a U-shaped clamping plate (4271). The upper left and right sides of the upper end of each of the U-shaped clamping plates (4271) are provided with through grooves (4273). The inner cavity of each of the through grooves (4273) on the left and right sides is fitted with bolts (4274). The upper surface of each of the bolts (4274) on the left and right sides is engaged with fixing blocks (4272). The upper ends of the fixing blocks (4272) on the left side are fixedly connected to the lower right side of the connecting steel plate (428). The upper ends of the fixing blocks (4272) on the right side are fixedly connected to the lower left side of the connecting steel plate (421). The outer surfaces of the two sliders (52) on the same side are slidably connected to the lower left and right sides of the inner cavity of the U-shaped clamping plate (4271) on the same side.

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