Road and bridge crack repairing and fixing structure

Abstract

This utility model relates to the field of road and bridge construction technology, and in particular to a fixing structure for repairing road and bridge cracks. It includes a cylinder and a road surface. A crack groove is provided at the crack in the road surface for placing the cylinder. A top groove is formed above the crack groove. A vertically placed support is slidably installed inside the cylinder. A waterproof plate is fixedly connected to the top of the support after it slides through the cylinder. An inner cavity is formed at the top of the cylinder. Connecting rods are rotatably connected to both sides of a section of the support located in the inner cavity. A pull rod is rotatably connected to the end of the connecting rod away from the support. A fixing rod is provided at the end of the pull rod away from the connecting rod. This application improves construction efficiency and reduces difficulty through convenient adjustment of the fixing structure. Furthermore, the design of barbs and waterproof grooves enhances structural stability and waterproof performance. The mechanical structure under stress also prevents further cracking, ensuring the quality of the repair work in terms of construction efficiency and long-term stability of the repair effect.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction technology, and in particular to a road and bridge crack repair and fixing structure. Background Technology

[0002] Cracks refer to the cracks that appear in road and bridge structures. These cracks may be caused by structural design, construction quality, material aging, earthquakes, etc. If cracks are not repaired and reinforced in time, they may lead to a decrease in structural strength, an increase in safety hazards, and even affect the normal use of roads and bridges. Therefore, the repair and reinforcement of road and bridge cracks is very important. Various methods and technologies can be used for repair to ensure the safety and stability of roads and bridges.

[0003] For example, Chinese utility model patent CN210262768U discloses a road and bridge crack repair and fixing structure. Although this device can effectively ensure the fixing of road and bridge cracks and facilitate the repair and installation operations of workers, the device uses internally designed sleeves and support rods to fix the cracks in the road. However, due to the connection and fixing of multiple components, the installation requires many steps and time, thus increasing the complexity of the installation. Furthermore, the buckles may loosen when inserted into the cracks, resulting in poor fixing effect and affecting the progress of road repair projects. Therefore, a road and bridge crack repair and fixing structure is proposed to solve the problems mentioned in the background technology. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a road and bridge crack repair and fixing structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A road and bridge crack repair and fixing structure includes a cylinder and a road surface. A crack groove is provided at the crack in the road surface for placing the cylinder. A top groove is provided above the crack groove. A vertically placed support is slidably installed inside the cylinder. A waterproof plate is fixedly connected to the top of the support after it slides through the cylinder. An inner cavity is provided at the top of the cylinder. Connecting rods are rotatably connected to both sides of a section of the support located in the inner cavity. A pull rod is rotatably connected to the end of the connecting rod away from the support. A fixing rod is provided at the end of the pull rod away from the connecting rod. A distance adjustment component is installed between the pull rod and the fixing rod. A fixing hole is provided at the crack in the road surface for placing the lower end of the fixing rod.

[0007] Preferably, a spring is fixedly connected to the lower end of the support, and the spring is fixedly connected to the bottom wall of the cylinder.

[0008] Preferably, the distance adjustment assembly includes a threaded cylinder, one end of which is threadedly connected to the pull rod, and the other end of which is threadedly connected to the fixed rod.

[0009] Preferably, the fixing rod is designed in an "L" shape, and barbs are evenly distributed at its lower end.

[0010] Preferably, a waterproof groove is provided above the top groove, the waterproof groove is designed in an inverted trapezoidal shape, and the waterproof board is located in the waterproof groove.

[0011] Preferably, the waterproof groove is filled with modified bitumen sealant, and the outside of the waterproof groove is coated with a bitumen layer.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. The fixed structure of this application is easy to adjust during construction. The tie rod and the fixing rod are engaged by a nut with a two-way thread, which can flexibly adjust the spacing so that the fixing rod can be embedded in the fixing hole. This reduces the requirements for the positional accuracy of the fixing hole, greatly reduces the amount of adjustment work during installation, significantly improves construction efficiency, and reduces construction difficulty.

[0014] 2. This application features a stable structure and excellent waterproofing. The barbs on the fixing rods enhance the bond strength with the concrete, preventing detachment; after the top trench is poured, a waterproof groove is constructed, filled with modified asphalt sealant, and tightly bonded to the waterproof membrane, effectively preventing water seepage and secondary cracking; when the repaired area is under stress, the supports drive the connecting rods and other structures to pull the road surface on both sides of the crack, preventing further cracking and ensuring the long-term use of the repaired area.

[0015] In summary, this application improves construction efficiency and reduces difficulty through convenient fixed structure adjustment; on the other hand, the design of barbs and waterproof grooves enhances structural stability and waterproof performance, and the mechanical structure under stress can also prevent cracking again, thus comprehensively ensuring the quality of the repair work in terms of construction efficiency and long-term stability of repair effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a road and bridge crack repair and fixing structure proposed in this utility model.

[0017] Figure 2 This is a half-section axonometric drawing of a road and bridge crack repair and fixing structure proposed in this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point X.

[0019] Figure 4 This is a half-sectional view of the road and bridge crack repair fixing structure proposed in this utility model after repair.

[0020] In the diagram: 1. Waterproof membrane, 2. Cylinder, 3. Tie rod, 4. Fixing rod, 5. Threaded cylinder, 6. Support, 7. Road surface, 21. Inner cavity, 22. Spring, 41. Barb, 61. Connecting rod, 71. Fixing hole, 72. Crack trench, 73. Top trench, 74. Waterproof trench, 75. Asphalt layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1 to 4 A road and bridge crack repair and fixing structure includes a cylinder 2 and a road surface 7. A crack groove 72 for placing the cylinder 2 is provided at the crack in the road surface 7. A top groove 73 is provided above the crack groove 72. A vertically placed support 6 is slidably installed inside the cylinder 2. A spring 22 is fixedly connected to the lower end of the support 6. The spring 22 is fixedly connected to the bottom wall of the inner wall of the cylinder 2. A waterproof plate 1 is fixedly connected to the top of the support 6 after it slides through the cylinder 2.

[0023] The upper part of the cylinder 2 has an inner cavity 21. The support 6 is located in the inner cavity 21 and is rotatably connected to both sides of the section on both sides. The end of the connecting rod 61 away from the support 6 is rotatably connected to the pull rod 3. The end of the pull rod 3 away from the connecting rod 61 is threadedly connected to the threaded cylinder 5 after sliding through the side wall of the cylinder 2. The end of the threaded cylinder 5 away from the pull rod 3 is threadedly connected to the fixing rod 4. The upper ends of the pull rod 3, the threaded cylinder 5 and the fixing rod 4 are placed inside the top groove 73. The distance between the pull rod 3 and the fixing rod 4 can be adjusted by setting the threaded cylinder 5. The fixing rod 4 is designed in an "L" shape and has barbs 41 evenly distributed at its lower end. The crack is provided with a fixing hole 71 for placing the lower end of the fixing rod 4.

[0024] When the waterproof membrane 1 is subjected to downward pressure, the support 6 moves downward, thereby causing the connecting rod 61 to move downward and deflect. The movement of the connecting rod 61 pulls the rotatably connected tie rod 3 inward, which in turn causes the tie rod 3 to move the fixed rod 4 to adjust the distance between the two fixed rods 4.

[0025] A waterproof groove 74 is provided above the top groove 73. The waterproof groove 74 is designed in an inverted trapezoidal shape, and the waterproof plate 1 is located in the waterproof groove 74. The waterproof groove 74 is filled with modified asphalt sealant, and an asphalt layer 75 is poured on the outside of the waterproof groove 74.

[0026] In operation, the construction personnel first excavate the crack to create a crack trench 72, then sequentially excavate the top groove 73 and the fixing hole 71. After cleaning, the fixing structure is placed into the crack trench 72, with the bottom of the cylinder 2 contacting the bottom of the crack trench 72. The ends of the tie rod 3 and the fixing rod 4 are threaded and cooperate with the threaded cylinder 5, which has a bidirectional thread. By rotating the threaded cylinder, the distance between the tie rod 3 and the fixing rod 4 is adjusted so that the fixing rod 4 is embedded in the fixing hole 71. This convenient adjustment reduces the positional accuracy requirements of the fixing hole in conventional structures and the amount of adjustment work during installation, greatly improving efficiency and reducing construction difficulty. After the on-site inspectors have inspected and approved the work, concrete is first poured to fill the fixing hole 71 and the crack trench 72. The barbs 41 enhance the bond strength between the fixing rod 4 and the concrete to prevent detachment. After the top groove 73 is filled with concrete, a waterproof groove 74 is created. Modified asphalt sealant is poured into the waterproof groove 74 and tightly bonded to the waterproof board 1. Finally, an asphalt layer 75 is covered. The tight bond between the modified asphalt sealant in the waterproof groove 74 and the waterproof board 1 effectively prevents water infiltration and secondary cracking. When the repaired area is deformed by pressure, the support 6 welded below the waterproof board 1 is pressed down and drives the connecting rod 61 in the inner cavity 21 to move down and deflect. The movement of the connecting rod 61 pulls the rotating tie rod 3 inward. By pulling the tie rod 3, the fixing rod 4 drives the road surface 7 on both sides of the crack inward, preventing the recurrence of cracks and ensuring the long-term use of the repaired area.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A road bridge crack repair fixing structure comprising a cylinder (2) and a road surface (7), characterized in that, The road surface (7) has a crack groove (72) for placing the cylinder (2) at the crack. A top groove (73) is provided above the crack groove (72). A vertically placed support (6) is slidably installed inside the cylinder (2). A waterproof plate (1) is fixedly connected to the top of the support (6) after it slides through the cylinder (2). An inner cavity (21) is provided above the inside of the cylinder (2). A connecting rod (61) is rotatably connected to both sides of a section of the support (6) located in the inner cavity (21). A pull rod (3) is rotatably connected to the end of the connecting rod (61) away from the support (6). A fixing rod (4) is provided at the end of the pull rod (3) away from the connecting rod (61). A distance adjustment component is installed between the pull rod (3) and the fixing rod (4). A fixing hole (71) for placing the lower end of the fixing rod (4) is provided at the crack in the road surface (7).

2. The road bridge crack repair fixing structure according to claim 1, characterized by, A spring (22) is fixedly connected to the lower end of the support (6), and the spring (22) is fixedly connected to the inner bottom wall of the cylinder (2).

3. The road bridge crack repair fixing structure according to claim 1, characterized by, The distance adjustment assembly includes a threaded cylinder (5), one end of which is threadedly connected to the pull rod (3), and the other end is threadedly connected to the fixed rod (4).

4. The road and bridge crack repair and fixing structure according to claim 1, characterized in that, The fixing rod (4) is designed in an "L" shape, and barbs (41) are evenly distributed at its lower end.

5. The road and bridge crack repair and fixing structure according to claim 1, characterized in that, A waterproof groove (74) is provided above the top groove (73). The waterproof groove (74) is designed in an inverted trapezoidal shape, and the waterproof plate (1) is located in the waterproof groove (74).

6. The road and bridge crack repair and fixing structure according to claim 5, characterized in that, The waterproof groove (74) is filled with modified asphalt sealant, and an asphalt layer (75) is poured on the outside of the waterproof groove (74).

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