Bridge road expansion joint connecting structure

Abstract

The utility model relates to the technical field of bridge road expansion joints, in particular to a bridge road expansion joint connecting structure which comprises a first bridge and a second bridge, the second bridge is located on the outer side of the first bridge, and a water stop strip is arranged between the first bridge and the second bridge. A buffer assembly is arranged at the bottom of the water stop strip and located between the first bridge and the second bridge. The buffering assembly is used for buffering the first bridge and the second bridge and is composed of a connecting block, first connecting rods, second connecting rods, a fixed block, a movable rod and a movable block, the connecting block is located at the bottom of the water stop strip, and the two first connecting rods are rotationally connected to the end, away from the water stop strip, of the connecting block; the second connecting rod is rotationally connected to the end, away from the connecting block, of the first connecting rod, and compared with an existing connecting structure, the overall practicability of the connecting structure can be improved through the design.

Description

Technical Field

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

[0002] A bridge expansion joint refers to a gap set up to adapt to changes in the length of the bridge due to temperature, humidity, and other reasons. It is usually located between two bridge piers or continuous beams of the bridge deck. The bridge expansion joint is required to be able to freely expand and contract in both directions parallel and perpendicular to the axis of the bridge, and be firm and reliable. When vehicles pass through, it should be smooth, without sudden jumps and noise. It must be able to prevent rainwater and garbage and soil from seeping in and blocking it. Installation, inspection, maintenance, and removal of dirt must be simple and convenient.

[0003] Bridge expansion joints are divided into the following five categories: steel support type, combined shear type (plate type), modular support type, butt joint type and seamless expansion joints, among which the butt joint type is the most common type. The butt joint structure is to place elastic material as filler in the expansion joint. The elastic material can also play a role in water stopping, also known as a water stop strip. This process relies entirely on the elasticity of the elastic material itself for expansion and contraction. The filler is prone to aging, breaking, falling off, and then losing its due function. Therefore, it is particularly important to improve the existing connection structure and design a new type of bridge and road expansion joint connection structure to solve the above technical defects and improve the practicality of the overall connection structure. Utility Model Content

[0004] The purpose of the utility model is to provide a bridge road expansion joint connection structure, which can buffer the connecting block through the damping spring and the fixed block, so that the water stop strip can be buffered. When the moving block is displaced, the first compression spring inside the connecting groove is squeezed, and the first compression spring is squeezed to generate a rebound force, which buffers the moving block, so as to further buffer the connecting block, thereby buffering the water stop strip, and can achieve double shock absorption. Combined with the elasticity of the water stop strip itself, the shock absorption effect is good, and it can avoid local excessive loads. The overall force performance is good, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A bridge-road expansion joint connection structure includes a first bridge and a second bridge, wherein the second bridge is located outside the first bridge, a water stop strip is provided between the first bridge and the second bridge, and a buffer assembly is provided at the bottom of the water stop strip and located between the first bridge and the second bridge;

[0007] The buffer assembly is used to buffer the first bridge and the second bridge, and the buffer assembly consists of a connecting block, a first connecting rod, a second connecting rod, a fixed block, a moving rod and a moving block. The connecting block is located at the bottom of the water stop strip, and the two groups of the first connecting rods are rotatably connected to the end of the connecting block away from the water stop strip, and the second connecting rod is rotatably connected to the end of the first connecting rod away from the connecting block. The fixed block is located at the end of the two groups of the second connecting rods away from the first connecting rod, the moving rod is located at the connection between the first connecting rod and the second connecting rod, and the moving block is located at the end of the moving rod away from the first connecting rod and the second connecting rod.

[0008] As a preferred solution of the present invention, the fixed block is rotatably connected to the second connecting rod, a damping spring is provided at one end of the connecting block close to the fixed block, and the end of the damping spring away from the connecting block is connected to the fixed block.

[0009] As a preferred solution of the present invention, the moving rod is rotationally connected to the first connecting rod and the second connecting rod, and the two groups of moving blocks are slidingly connected to the first bridge and the second bridge respectively.

[0010] As a preferred solution of the present invention, connecting grooves are provided inside the first bridge and the second bridge and on the outside of the moving block, and a first compression spring is provided inside the connecting groove, and the inside of the first compression spring is connected to the moving block.

[0011] As a preferred solution of the present invention, the interior of the connecting groove and the two ends of the moving block are slidably connected to the limiting blocks, and the ends of the limiting block and the moving block that are close to each other are both designed with an arc-shaped structure.

[0012] As a preferred solution of the present invention, an accommodating groove is provided inside the connecting groove and outside the limiting block, a second compression spring is provided inside the accommodating groove, and the limiting block is connected to the second compression spring through the accommodating groove.

[0013] As a preferred solution of the present invention, installation grooves are provided inside the first bridge and the second bridge and on the outside of the water stop strip. The water stop strip extends to the inside of the installation groove and is provided with an installation block. The water stop strip is connected to the installation groove through the installation block, and the first bridge and the second bridge are connected to the installation block through a fixing rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the utility model, through the design of the buffer component, the damping spring cooperates with the fixed block to buffer the connecting block, so that the water stop strip can be buffered. When the moving block is displaced, the first compression spring inside the connecting groove is squeezed, and the first compression spring is squeezed to generate a rebound force, which buffers the moving block, so as to further buffer the connecting block, thereby buffering the water stop strip, achieving double shock absorption, and combined with the elasticity of the water stop strip itself, the shock absorption effect is good.

[0016] 2. In the present invention, through the design of the limit block, when the moving block is displaced inside the connecting groove, the second compression spring cooperates with the accommodating groove to drive the limit block to displace, so that the limit block can limit the moving block and limit the moving block inside the connecting groove to prevent the moving block from resetting too quickly, causing the water stop strip to be subjected to a large rebound force and deform again, affecting its service life. Slow rebound is achieved to help the water stop strip recover from deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the buffer component of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the water stop strip of the utility model.

[0020] In the figure: 1. First bridge; 2. Second bridge; 3. Water stop; 4. Buffer assembly; 5. Connecting block; 6. First connecting rod; 7. Second connecting rod; 8. Fixed block; 9. Moving rod; 10. Moving block; 11. Damping spring; 12. Connecting groove; 13. First compression spring; 14. Limiting block; 15. Second compression spring; 16. Mounting block. DETAILED DESCRIPTION

[0021] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example: See Figure 1-Figure 3 , the utility model provides a technical solution:

[0023] A bridge-road expansion joint connection structure includes a first bridge 1 and a second bridge 2, wherein the second bridge 2 is located outside the first bridge 1, a water stop strip 3 is provided between the first bridge 1 and the second bridge 2, and a buffer assembly 4 is provided at the bottom of the water stop strip 3 and located between the first bridge 1 and the second bridge 2;

[0024] The buffer assembly 4 is used to buffer the first bridge 1 and the second bridge 2, and the buffer assembly 4 consists of a connecting block 5, a first connecting rod 6, a second connecting rod 7, a fixed block 8, a moving rod 9 and a moving block 10. The connecting block 5 is located at the bottom of the water stop strip 3, and the two groups of first connecting rods 6 are rotatably connected to the end of the connecting block 5 away from the water stop strip 3. The second connecting rod 7 is rotatably connected to the end of the first connecting rod 6 away from the connecting block 5. The fixed block 8 is located at the end of the two groups of second connecting rods 7 away from the first connecting rod 6. The moving rod 9 is located at the connection between the first connecting rod 6 and the second connecting rod 7. The moving block 10 is located at the end of the moving rod 9 away from the first connecting rod 6 and the second connecting rod 7.

[0025] Furthermore, the fixed block 8 and the second connecting rod 7 are rotatably connected. A damping spring 11 is provided at one end of the connecting block 5 close to the fixed block 8. The end of the damping spring 11 away from the connecting block 5 is connected to the fixed block 8. The damping spring 11 is connected to the fixed block 8 so that the connecting block 5 can be connected to the fixed block 8. When the connecting block 5 is squeezed and displaced, the damping spring 11 is squeezed. The damping spring 11 cooperates with the fixed block 8 to buffer the connecting block 5, so that the water stop strip 3 can be buffered.

[0026] Among them, the moving rod 9 is rotationally connected to the first connecting rod 6 and the second connecting rod 7, and the two groups of moving blocks 10 are slidingly connected to the first bridge 1 and the second bridge 2 respectively. The moving rod 9 is rotationally connected to the first connecting rod 6 and the second connecting rod 7. When the first connecting rod 6 is displaced, the moving rod 9 is driven to displace. In conjunction with the second connecting rod 7, the moving rod 9 can be stably driven to displace, so that the moving block 10 is displaced.

[0027] Secondly, a connecting groove 12 is provided inside the first bridge 1 and the second bridge 2 and on the outside of the moving block 10. A first compression spring 13 is provided inside the connecting groove 12. The interior of the first compression spring 13 is connected to the moving block 10. When the moving block 10 is displaced, the first compression spring 13 inside the connecting groove 12 is squeezed. The first compression spring 13 is squeezed to generate a rebound force, which buffers the moving block 10, further buffers the connecting block 5, and thus buffers the water stop strip 3.

[0028] Furthermore, the interior of the connecting groove 12 and the two ends of the moving block 10 are slidably connected to the limiting blocks 14, and the end of the limiting block 14 and the moving block 10 that are close to each other are both designed with an arc-shaped structure. A receiving groove is provided inside the connecting groove 12 and on the outside of the limiting block 14, and a second compression spring 15 is provided inside the receiving groove. The limiting block 14 is connected to the second compression spring 15 through the receiving groove. When the moving block 10 is displaced inside the connecting groove 12, the second compression spring 15 cooperates with the receiving groove to drive the limiting block 14 to displace, so that the limiting block 14 can limit the moving block 10 and limit the moving block 10 inside the connecting groove 12 to prevent the moving block 10 from resetting too quickly, causing the water stop strip 3 to be subjected to a large rebound force and deformed again, affecting its service life.

[0029] Furthermore, installation grooves are provided inside the first bridge 1 and the second bridge 2 and on the outside of the water stop strip 3. The water stop strip 3 extends to the inside of the installation groove and is provided with a installation block 16. The water stop strip 3 is connected to the installation groove through the installation block 16. The first bridge 1 and the second bridge 2 are both connected to the installation block 16 through a fixing rod. The installation block 16 is connected to the installation groove so that the water stop strip 3 can be connected to the first bridge 1 and the second bridge 2. The fixing rod is installed inside the installation block 16 so that the installation block 16 is limitedly connected to the first bridge 1 and the second bridge 2, thereby enabling the water stop strip 3 to be installed.

[0030] In this embodiment, the implementation scenario is specifically as follows: when a vehicle is walking on the bridge pavement and the water stop strip 3 is subjected to the vertical load from the vehicle, the water stop strip 3 is pressed down, driving the connecting block 5 to displace. When the connecting block 5 is squeezed and displaced, the damping spring 11 is squeezed. The damping spring 11 cooperates with the fixed block 8 to buffer the connecting block 5, so that the water stop strip 3 can be buffered. At the same time, when the connecting block 5 is displaced, the first connecting rod 6 is driven to displace. When the first connecting rod 6 is displaced, the moving rod 9 is driven to displace. Cooperating with the second connecting rod 7, the moving rod 9 can be stably driven to displace, so that the moving block 10 is displaced. When the moving block 10 is displaced, the first compression spring 13 inside the connecting groove 12 is squeezed. The first compression spring 13 The compression spring 13 is squeezed to generate a rebound force, which buffers the moving block 10, further buffers the connecting block 5, and thus buffers the water stop strip 3, which can achieve double shock absorption and has a good shock absorption effect. When the moving block 10 is displaced inside the connecting groove 12, the second compression spring 15 cooperates with the accommodating groove to drive the limit block 14 to displace, so that the limit block 14 can limit the moving block 10, and limit the moving block 10 inside the connecting groove 12, preventing the moving block 10 from resetting too quickly, causing the water stop strip 3 to be subjected to a large rebound force and deformed again, affecting its service life. Slow rebound is achieved to help the water stop strip 3 restore its deformation. Compared with the existing connection structure, the utility model can improve the overall practicality of the connection structure through design.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge-road expansion joint connection structure, comprising a first bridge (1) and a second bridge (2), characterized in that: The second bridge (2) is located outside the first bridge (1), a water stop strip (3) is provided between the first bridge (1) and the second bridge (2), and a buffer assembly (4) is provided at the bottom of the water stop strip (3) and located between the first bridge (1) and the second bridge (2); The buffer assembly (4) is used to buffer the first bridge (1) and the second bridge (2), and the buffer assembly (4) consists of a connecting block (5), a first connecting rod (6), a second connecting rod (7), a fixed block (8), a moving rod (9) and a moving block (10), wherein the connecting block (5) is located at the bottom of the water stop strip (3), the two groups of the first connecting rods (6) are both rotatably connected to the end of the connecting block (5) away from the water stop strip (3), the second connecting rod (7) is rotatably connected to the end of the first connecting rod (6) away from the connecting block (5), the fixed block (8) is located at the end of the two groups of the second connecting rods (7) away from the first connecting rod (6), the moving rod (9) is located at the connection between the first connecting rod (6) and the second connecting rod (7), and the moving block (10) is located at the end of the moving rod (9) away from the first connecting rod (6) and the second connecting rod (7).

2. A bridge-road expansion joint connection structure according to claim 1, characterized in that: The fixed block (8) is rotatably connected to the second connecting rod (7); a damping spring (11) is provided at one end of the connecting block (5) close to the fixed block (8); and an end of the damping spring (11) away from the connecting block (5) is connected to the fixed block (8).

3. The bridge-road expansion joint connection structure according to claim 1, characterized in that: The moving rod (9) is rotationally connected to the first connecting rod (6) and the second connecting rod (7), and the two groups of moving blocks (10) are slidingly connected to the first bridge (1) and the second bridge (2), respectively.

4. The bridge-road expansion joint connection structure according to claim 1, characterized in that: A connecting groove (12) is provided inside the first bridge (1) and the second bridge (2) and outside the moving block (10). A first compression spring (13) is provided inside the connecting groove (12). The interior of the first compression spring (13) is connected to the moving block (10).

5. The bridge-road expansion joint connection structure according to claim 4, characterized in that: The interior of the connection groove (12) and at both ends of the moving block (10) are slidably connected to the limiting blocks (14), and the ends of the limiting blocks (14) and the moving block (10) that are close to each other are both designed in an arc-shaped structure.

6. The bridge-road expansion joint connection structure according to claim 5, characterized in that: An accommodating groove is provided inside the connecting groove (12) and outside the limiting block (14). A second compression spring (15) is provided inside the accommodating groove. The limiting block (14) is connected to the second compression spring (15) via the accommodating groove.

7. The bridge-road expansion joint connection structure according to claim 1, characterized in that: The first bridge (1) and the second bridge (2) are both provided with mounting grooves inside and outside the water stop strip (3); the water stop strip (3) is extended to the inside of the mounting groove and a mounting block (16) is provided; the water stop strip (3) is connected to the mounting groove via the mounting block (16); and the first bridge (1) and the second bridge (2) are both connected to the mounting block (16) via a fixing rod.

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