A type of oblique expansion joint

Abstract

This utility model relates to an oblique expansion joint, comprising a first expansion plate and a second expansion plate. A first protrusion and a second protrusion, equidistantly engaged, are disposed between the first and second expansion plates. The first and second protrusions are inclined and concentrate the force direction. The sides of the first and second expansion plates that are close to each other are obliquely connected to the first and second protrusions for directional force application. This utility model, through the obliquely arranged first and second protrusions, in conjunction with a first interface and a second interface, orients the force direction of the first and second expansion plates. The oblique force application of the first and second expansion plates transforms the random multi-directional displacement of the expansion joint into a predetermined direction. The obliquely force-applied first and second expansion plates effectively suppress lateral runout, reduce wear and tear, and effectively extend the service life of the expansion joint. It is particularly suitable for temperature difference deformation compensation in long-span bridges.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, specifically to an oblique expansion joint. Background Technology

[0002] Bridge expansion joints are installed between the two ends of a bridge to accommodate structural deformation caused by temperature changes and loads. They allow the bridge to expand and contract freely in the parallel and perpendicular directions, improving the smoothness of driving, reducing noise and jolting, preventing rainwater from entering the bridge and causing corrosion of the materials, and extending the bridge's service life.

[0003] Existing bridge expansion joints with toothed or planar protrusions have expansion trajectories that are parallel and perpendicular to the axes. When subjected to external forces, the expansion joints may tilt and bounce towards the inside of the road surface or towards the outside of the road surface, resulting in greater wear and shorter service life. Utility Model Content

[0004] Based on the above description, this utility model provides an oblique expansion joint to solve the problems of random oblique movement direction, large wear, and short service life of existing expansion joints.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: an oblique expansion joint, including a first expansion plate and a second expansion plate, wherein a first protrusion and a second protrusion are provided between the first expansion plate and the second expansion plate in an equidistant meshing manner, the first protrusion and the second protrusion are inclined in a concentrated force direction, and the sides of the first expansion plate and the second expansion plate that are close to each other are obliquely connected to the first protrusion and the second protrusion for directional force.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the first protrusion is integrally formed on the side of the first telescopic plate near the second telescopic plate. The first protrusion is arranged in a wavy, curved pattern and is distributed at equal intervals. The end of the first protrusion near the second telescopic plate is integrally formed with an inclined, bent extension.

[0008] Furthermore, the second protrusion is integrally formed on the side of the second telescopic plate close to the first telescopic plate, and the second protrusion and the first protrusion are interlocked.

[0009] Furthermore, the second protrusion is arranged in a wavy, curved pattern and is distributed at equal intervals. The shape of the curved arrangement of the second protrusion matches the shape of the curved arrangement of the first protrusion.

[0010] Furthermore, the second protrusion has an integrally formed inclined and bent extension at one end near the first telescopic plate, and the inclination direction of the extension of the second protrusion is opposite to that of the extension of the first protrusion.

[0011] Furthermore, the first telescopic plate is provided with a first interface at both ends of the side near the second telescopic plate and between two adjacent first protrusions. The first interface is inclined and parallel to the second protrusion.

[0012] Furthermore, a second interface is provided between the two second protrusions, the second interface being inclined and parallel to the first protrusion.

[0013] Furthermore, pre-embedded steel bars are fixedly connected to the sides of the first and second telescopic plates that are far apart from each other, and the pre-embedded steel bars are distributed at equal intervals.

[0014] Furthermore, each of the first telescopic plate and the second telescopic plate is fixedly connected to an assembly plate on one side near the first protrusion and the second protrusion, respectively, and the two assembly plates are perpendicular to the first telescopic plate and the second telescopic plate, respectively.

[0015] Furthermore, the side of the assembly plate away from the first telescopic plate is integrally formed with a barb-shaped structure, and a water-stop strip is installed between the barb portions of the two assembly plates. The water-stop strip is V-shaped, and the protruding end faces the side away from the first telescopic plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] This invention uses an inclined first and second protrusion, along with a first and second interface, to orient the force direction of the first and second expansion joints. The inclined force movement of the first and second expansion joints transforms the random multi-directional displacement of the expansion joint into a predetermined direction. The inclined force of the first and second expansion joints effectively suppresses lateral movement, reduces wear and tear, and effectively extends the service life of the expansion joint. It is particularly suitable for temperature difference deformation compensation of long-span bridges. Attached Figure Description

[0018] Figure 1 A structural schematic diagram of an oblique expansion joint provided for an embodiment of this utility model;

[0019] Figure 2 This is an exploded structural diagram of the first telescopic plate and the second telescopic plate in an embodiment of this utility model;

[0020] Figure 3 for Figure 2 A structural diagram from another perspective;

[0021] Figure 4 for Figure 1 A structural diagram from another perspective;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. First telescopic plate; 2. First protrusion; 3. First interface; 4. Second telescopic plate; 5. Second protrusion; 6. Second interface; 7. Embedded steel bar; 8. Assembly plate; 9. Water-stop strip. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] Please see Figure 1-4 The present invention provides an oblique expansion joint, comprising a first expansion plate 1 and a second expansion plate 4, wherein a first protrusion 2 and a second protrusion 5 are provided between the first expansion plate 1 and the second expansion plate 4 in an equidistant meshing manner, the first protrusion 2 and the second protrusion 5 are inclined in a concentrated force direction, and the sides of the first expansion plate 1 and the second expansion plate 4 that are close to each other are obliquely connected to the first protrusion 2 and the second protrusion 5 for directional force.

[0027] Please see Figure 2 The first protrusion 2 is integrally formed on the side of the first telescopic plate 1 near the second telescopic plate 4. The first protrusion 2 is arranged in a wave-like curved pattern and is distributed at equal intervals. The end of the first protrusion 2 near the second telescopic plate 4 is integrally formed with an inclined and bent extension. The second protrusion 5 is integrally formed on the side of the second telescopic plate 4 near the first telescopic plate 1. The second protrusion 5 is staggered with the first protrusion 2. The second protrusion 5 is arranged in a wave-like curved pattern and is distributed at equal intervals. The shape of the curved arrangement of the second protrusion 5 matches the shape of the curved arrangement of the first protrusion 2. The arrangement of the first protrusion 2 and the second protrusion 5 increases the contact area between the first telescopic plate 1 and the second telescopic plate 4 when they are subjected to force. The wave-like curved arrangement of the first protrusion 2 and the second protrusion 5 forms a multi-level buffer unit. The wave-like curved arrangement can increase the absorption of impact energy of the first telescopic plate 1 and the second telescopic plate 4 and reduce the vibration noise when the expansion joint is in operation.

[0028] Please see Figure 3 The second protrusion 5 has an integrally formed inclined and bent extension at one end near the first expansion plate 1. The inclined direction of the extension of the second protrusion 5 is opposite to that of the extension of the first protrusion 2. The bent extensions of the first protrusion 2 and the bent extensions of the second protrusion 5 are symmetrically arranged. The inclined bending of the first protrusion 2 and the second protrusion 5 changes the force direction of the first expansion plate 1 and the second expansion plate 4. The inclined force of the first protrusion 2 and the second protrusion 5 concentrates the force direction of the expansion joint inside the road surface, reducing the deformation of the expansion joint during the force activity. At the same time, the first protrusion 2 and the second protrusion 5 form a stable mesh, which improves the load-bearing capacity and deformation resistance of the expansion joint.

[0029] Please see Figure 2 First interfaces 3 are provided at both ends of the first telescopic plate 1 near the second telescopic plate 4 and between two adjacent first protrusions 2. The first interfaces 3 are inclined and parallel to the second protrusions 5. The inclined first interfaces 3 and the second protrusions 5 are parallel. The inclined surface of the first interfaces 3 cooperates with the inclined surface of the second protrusions 5, which limits the movement path of the second telescopic plate 4, prevents the second telescopic plate 4 from moving towards the outside of the road surface, enhances the stability of the expansion joint during the stress process, reduces wear during movement, and also prevents the second telescopic plate 4 from moving too widely, causing the second telescopic plate 4 to misalign and separate from the first telescopic plate 1 and lose its meshing function.

[0030] Please see Figure 2 A second interface 6 is provided between the two second protrusions 5. The second interface 6 is inclined and parallel to the first protrusion 2. The inclined surface of the second interface 6 cooperates with the inclined surface of the first protrusion 2, which limits the movement path of the first expansion plate 1, prevents the first expansion plate 1 from moving towards the outside of the road surface, enhances the stability of the expansion joint during the stress process, reduces the wear of movement, and at the same time, prevents the first expansion plate 1 from separating from the second expansion plate 4 during the movement range and losing its meshing function.

[0031] Please see Figure 1 Both the first expansion joint 1 and the second expansion joint 4 are fixedly connected to the opposite sides of each other with embedded steel bars 7. The embedded steel bars 7 are distributed at equal intervals. The design of the embedded steel bars 7 ensures a firm connection between the first expansion joint 1, the second expansion joint 4 and the bridge, improves the installation stability and long-term use effect of the expansion joint, and extends the service life of the bridge to a certain extent.

[0032] Please see Figure 1The first telescopic plate 1 and the second telescopic plate 4 are each fixedly connected to an assembly plate 8 on the side near the first protrusion 2 and the second protrusion 5, respectively. The two assembly plates 8 are perpendicular to the first telescopic plate 1 and the second telescopic plate 4, respectively. The side of the assembly plate 8 away from the first telescopic plate 1 is integrally formed with a barb-shaped structure. A water-stop strip 9 is installed between the barb parts of the two assembly plates 8. The water-stop strip 9 is V-shaped, and the protruding end faces the side away from the first telescopic plate 1. The side of the assembly plate 8 away from the first telescopic plate 1 is bent at ninety degrees multiple times to form a barb-shaped structure. The two sides of the water-stop strip 9 are also bent at ninety degrees multiple times to form a barb-shaped structure. The two sides of the water-stop strip 9 are interlocked with the barb-shaped structure of the assembly plate 8, which increases the stability of the structural strength. When disassembling and installing the water-stop strip 9, it can be directly inserted and pulled out from the two ends of the barb-shaped structure of the assembly plate 8 for easy assembly.

[0033] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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. A diagonal expansion joint, characterized in that, include: The first telescopic plate (1) and the second telescopic plate (4) are provided with a first protrusion (2) and a second protrusion (5) that are equidistant from each other. The first protrusion (2) and the second protrusion (5) are inclined to concentrate the force direction. The first telescopic plate (1) and the second telescopic plate (4) are inclined to the first protrusion (2) and the second protrusion (5) to receive directional force on the side that is close to each other.

2. The oblique expansion joint according to claim 1, characterized in that: The first protrusion (2) is integrally formed on the side of the first telescopic plate (1) near the second telescopic plate (4). The first protrusion (2) is arranged in a wave-like curved pattern and is distributed at equal intervals. The end of the first protrusion (2) near the second telescopic plate (4) is integrally formed with an inclined and bent extension.

3. The oblique expansion joint according to claim 1, characterized in that: The second protrusion (5) is integrally formed on the side of the second telescopic plate (4) near the first telescopic plate (1), and the second protrusion (5) and the first protrusion (2) are interlocked.

4. The oblique expansion joint according to claim 1, characterized in that: The second protrusion (5) is arranged in a wavy, curved pattern and is distributed at equal intervals. The shape of the curved arrangement of the second protrusion (5) matches the shape of the curved arrangement of the first protrusion (2).

5. The oblique expansion joint according to claim 1, characterized in that: The second protrusion (5) has an integrally formed inclined and bent extension at one end near the first telescopic plate (1), and the inclination direction of the extension of the second protrusion (5) is opposite to that of the extension of the first protrusion (2).

6. The oblique expansion joint according to claim 1, characterized in that: The first telescopic plate (1) is provided with a first interface (3) at both ends of the side near the second telescopic plate (4) and between the two adjacent first protrusions (2). The first interface (3) is inclined and parallel to the second protrusion (5).

7. The oblique expansion joint according to claim 1, characterized in that: A second interface (6) is provided between the two second protrusions (5). The second interface (6) is inclined and parallel to the first protrusion (2).

8. The oblique expansion joint according to claim 1, characterized in that: Both the first telescopic plate (1) and the second telescopic plate (4) are fixedly connected to embedded steel bars (7) on the side away from each other, and the embedded steel bars (7) are distributed at equal intervals.

9. The oblique expansion joint according to claim 1, characterized in that: The first telescopic plate (1) and the second telescopic plate (4) are respectively fixedly connected to the side of the first protrusion (2) and the second protrusion (5) with an assembly plate (8), and the two assembly plates (8) are respectively perpendicular to the first telescopic plate (1) and the second telescopic plate (4).

10. The oblique expansion joint according to claim 9, characterized in that: The assembly plate (8) has an integrally formed barb-shaped structure on the side away from the first telescopic plate (1). A water-stop strip (9) is installed between the barb parts of the two assembly plates (8). The water-stop strip (9) is V-shaped and the protruding end faces the side away from the first telescopic plate (1).

Images