Highway bridge expansion joint structure

Abstract

The utility model discloses a highway bridge expansion joint structure, and relates to the technical field of highway bridges. The highway bridge expansion joint structure comprises beam bodies, an expansion joint is formed between every two adjacent beam bodies, the highway bridge expansion joint structure further comprises an L-shaped supporting plate which is fixedly connected to the beam bodies, a pressure-resistant plate is connected to the L-shaped supporting plate in a sliding mode, the top face of the pressure-resistant plate is parallel to the top faces of the beam bodies, drainage grooves are formed in the beam bodies, and the drainage grooves are communicated with the L-shaped supporting plate. A mud blocking net plate is fixedly mounted in the drainage groove; according to the utility model, particulate impurities blocking the meshes of the mud blocking screen plate can be reversely cleaned, so that the effect of dredging the mud blocking screen plate is realized, the meshes of the mud blocking screen plate are prevented from being blocked, rainwater is prevented from being discharged through a drainage groove, and the rainwater is prevented from leaking into an expansion joint through a gap between the pressure-resistant plate and the L-shaped supporting plate; and the expansion joint structure is damaged due to rainwater soaking.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway bridges, and in particular relates to an expansion joint structure of a highway bridge. Background Art

[0002] A building expansion joint is a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent the building components from expanding or contracting due to changes in climate temperature, causing cracks or damage to the structure.

[0003] At present, in order to reduce the bumps when vehicles pass through and increase driving comfort, a highway bridge expansion joint structure is usually added at the expansion joint of the bridge;

[0004] For example, the utility model patent with patent application number 202123162535.3 and name is a highway bridge expansion joint structure, which discloses a highway bridge expansion joint structure, including an L-shaped support plate installed at the expansion joint of the highway bridge substrate, wherein a plurality of L-shaped support plates are provided, and the plurality of L-shaped support plates are symmetrically arranged along the center line of the expansion joint, and an arch support block is provided between the two L-shaped support plates, and the side walls on both sides of the arch support block are fixed with a first connecting tube. In the present application, when the arch support block is displaced left and right by the force of the automobile, the first connecting tube slides in the second support tube, causing the telescopic spring to stretch or contract, thereby causing the arch support block to slide a certain distance between the two L-shaped support plates. After the force of the automobile disappears, the spring resets the arch support block, thereby reducing the probability of the arch support block causing damage to other components in the structure when it is displaced left and right by the force of the automobile, thereby improving the practicality of the expansion joint structure;

[0005] The above patent also has the following defects. Since the mesh holes of the mud guard mesh are easily clogged by particulate impurities, rainwater cannot be quickly discharged through the drainage holes, resulting in water accumulation on the base. Water will then seep into the expansion joint through the gap between the compression plate and the L-shaped support plate, causing the expansion joint structure to be damaged by rainwater. In view of this, the present utility model is specially proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a highway bridge expansion joint structure that can overcome the above problems or at least partially solve the above problems.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] The expansion joint structure of a highway bridge comprises a beam body, an expansion joint is formed between two adjacent beam bodies, and further comprises: an L-shaped support plate fixedly connected to the beam body, wherein a pressure plate is slidably connected to the L-shaped support plate, the top surface of the pressure plate is parallel to the top surface of the beam body, a drainage groove is provided on the beam body, a mud guard mesh is fixedly installed in the drainage groove, a connecting plate is fixedly connected below the mud guard mesh in the drainage groove, an air nozzle corresponding to the mesh of the mud guard mesh is fixedly installed on the connecting plate, a hollow cavity connected to the air nozzle is provided on the connecting plate, an air storage cavity is provided on the L-shaped support plate, the air storage cavity is fixedly connected to the hollow cavity through a conduit, and a solenoid valve is provided on the conduit; a pressurizing component is provided on the L-shaped support plate and is used to pressurize the air storage cavity; a pressure block is fixedly connected to the pressure plate; a buffer component is provided between the pressure block and the L-shaped support plate and is used to buffer the pressure plate.

[0009] In order to improve the stability of the anti-pressure plate when it moves left and right on the L-shaped support plate, preferably, a T-shaped guide block is fixedly connected to the L-shaped support plate, and a guide groove used in conjunction with the T-shaped guide block is opened on the lower side of the anti-pressure plate, and the T-shaped guide block is slidably connected in the guide groove.

[0010] In order to provide a buffering effect on the pressure-resistant plate that moves left and right, preferably, the buffer component includes a buffer cylinder and a piston disk slidably connected in the buffer cylinder, springs are fixedly connected on both sides of the piston disk, and the side of the spring away from the piston disk is fixedly connected to the inner wall of the buffer cylinder, a connecting rod is fixedly connected to the piston disk, the connecting rod passes through one end of the buffer cylinder and is fixedly connected to the pressure block, and the buffer cylinder is fixedly connected to the L-shaped support plate.

[0011] In order to achieve the purpose of increasing the pressure inside the air storage chamber, the boosting component further includes pipeline 1 and pipeline 2. The buffer cylinder is provided with suction chambers on both sides of the piston disc. Pipe 1 is fixedly connected to the suction chamber. One end of pipeline 2 is fixedly connected to the suction chamber, and the other end is fixedly connected to the air storage chamber. Both pipeline 1 and pipeline 2 are provided with one-way valves.

[0012] In order to filter the external gas passing through pipeline one, it further includes an activated carbon filter, which is fixedly installed in the air inlet end of pipeline one.

[0013] In order to reduce the probability of a large amount of mud and rainwater remaining on the compression plate, preferably, both sides of the compression plate are inclined.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0015] The utility model can reversely clean the particulate impurities that block the mesh holes of the mud guard mesh, thereby achieving the effect of unblocking the mud guard mesh, preventing the mesh holes of the mud guard mesh from being blocked, affecting the discharge of rainwater through the drainage trough, causing rainwater to seep into the expansion joint through the gap between the compression plate and the L-shaped support plate, causing the expansion joint structure to be damaged by being soaked by rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the beam body and the L-shaped support plate of the utility model;

[0017] Figure 2 This is a partial structural diagram of the utility model. Figure 1 ;

[0018] Figure 3 It is a structural schematic diagram of the utility model;

[0019] Figure 4 This is a partial structural diagram of the utility model. Figure 2 ;

[0020] Figure 5 The utility model Figure 1 A magnified view of part A;

[0021] Figure 6 The utility model Figure 4 Magnified view of part B.

[0022] In the figure: 1. beam body; 101. L-shaped support plate; 102. T-shaped guide block; 103. pressure plate; 2. drainage trough; 201. mud guard mesh plate; 3. buffer cylinder; 301. piston disc; 302. connecting rod; 303. spring; 304. pipeline 1; 305. pipeline 2; 306. air storage chamber; 307. pressure block; 4. connecting plate; 401. air nozzle; 402. hollow cavity; 403. conduit; 404. solenoid valve; 5. activated carbon filter. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0024] Embodiment 1:

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The expansion joint structure of a highway bridge includes a beam body 1, an expansion joint is formed between two adjacent beam bodies 1, and also includes: an L-shaped support plate 101, which is fixedly connected to the beam body 1, wherein a compression plate 103 is slidably connected to the L-shaped support plate 101, and the top surface of the compression plate 103 is parallel to the top surface of the beam body 1, and a drainage groove 2 is opened on the beam body 1, and a mud guard mesh plate 201 is fixedly installed in the drainage groove 2, and a connecting plate 4 is fixedly connected to the drainage groove 2 below the mud guard mesh plate 201, and a jet nozzle 4 corresponding to the mesh of the mud guard mesh plate 201 is fixedly installed on the connecting plate 4. 01, a hollow cavity 402 connected to the air nozzle 401 is formed on the connecting plate 4, an air storage cavity 306 is formed on the L-shaped support plate 101, the air storage cavity 306 is fixedly connected to the hollow cavity 402 through a conduit 403, and a solenoid valve 404 is provided on the conduit 403; a pressurizing component is arranged on the L-shaped support plate 101 and is used to increase the pressure in the air storage cavity 306; a pressure block 307 is fixedly connected to the anti-pressure plate 103; a buffer component is arranged between the pressure block 307 and the L-shaped support plate 101, and is used to buffer the anti-pressure plate 103.

[0026] The buffer component includes a buffer cylinder 3 and a piston disk 301 slidably connected in the buffer cylinder 3. Springs 303 are fixedly connected on both sides of the piston disk 301. The side of the spring 303 away from the piston disk 301 is fixedly connected to the inner wall of the buffer cylinder 3. A connecting rod 302 is fixedly connected to the piston disk 301. One end of the connecting rod 302 passes through the buffer cylinder 3 and is fixedly connected to the pressure block 307. The buffer cylinder 3 is fixedly connected to the L-shaped support plate 101.

[0027] The boosting component includes pipeline 1 304 and pipeline 2 305. Suction chambers are provided on both sides of the piston disc 301 in the buffer cylinder 3. Pipe 1 304 is fixedly connected to the suction chamber. One end of pipeline 2 305 is fixedly connected to the suction chamber, and the other end is fixedly connected to the air storage chamber 306. One-way valves are provided on pipeline 1 304 and pipeline 2 305.

[0028] It also includes an activated carbon filter 5, which is fixedly installed in the air inlet end of the pipeline 1 304.

[0029] When the pressure plate 103 is subjected to the force of the car and then produces a left-right displacement on the L-shaped support plate 101, the pressure plate 8 drives the pressure block 307 to move synchronously, and at the same time, the pressure block 307 pushes the piston plate 301 to slide left and right in the buffer cylinder 3 through the connecting rod 302, so that the spring 303 is compressed or stretched. Then, when the force of the car disappears, the compressed or stretched spring 303 automatically resets under its own elastic potential energy, and at the same time pushes the piston plate 301, the pressure block 307 and the pressure plate 10 to reset, thereby reducing the risk of impact damage to other components in the structure when the pressure block 307 moves left and right, thereby improving the practicality of the expansion joint structure;

[0030] At the same time, the piston disc 301 slides back and forth in the buffer cylinder 3 to form a piston movement, so that when the piston disc 301 slides to one side in the buffer cylinder 3, the external gas can be sucked into the suction chamber through the pipe 1 304 for temporary storage. Then, when the piston disc 301 slides to the other side in the buffer cylinder 3, the gas stored in the suction chamber is squeezed by the piston disc 301 and can be transported into the air storage chamber 306 through the pipe 2 304, thereby achieving the purpose of inflating and pressurizing the air storage chamber 306. When the gas pressurized into the air storage chamber 306 reaches the pressure sensor matched with the solenoid valve 404, the gas stored in the suction chamber is compressed by the piston disc 301. When the set pressure value is reached, the solenoid valve 404 is opened. At this time, the high-pressure gas stored in the air storage chamber 306 can be transported into the hollow cavity 402 through the conduit 403, and finally sprayed back to the mud guard mesh 201 through the air nozzle 401, so that the particulate impurities blocking the mesh of the mud guard mesh 201 can be cleaned back, thereby achieving the effect of unblocking the mud guard mesh 201, preventing the mesh of the mud guard mesh 201 from being blocked, affecting the discharge of rainwater through the drainage trough 2, causing rainwater to penetrate through the gap between the pressure-resistant plate 103 and the L-shaped support plate 101 into the expansion joint, causing the expansion joint structure to be damaged by rainwater immersion.

[0031] It should be noted that the solenoid valve 404 is of model 4GB※R.

[0032] Embodiment 2:

[0033] Reference Figure 1 , Figure 2 , Figure 4 The expansion joint structure of the highway bridge is basically the same as that of Example 1. Furthermore, a T-shaped guide block 102 is fixedly connected to the L-shaped support plate 101, and a guide groove used in conjunction with the T-shaped guide block 102 is provided on the lower side of the pressure-resistant plate 103, and the T-shaped guide block 102 is slidably connected in the guide groove; when the pressure-resistant plate 103 is subjected to the force of the automobile and then produces a left-right displacement on the L-shaped support plate 101, the T-shaped guide block 102 that moves with the L-shaped support plate 101 slides in the guide groove, thereby being able to play a role of limiting and guiding the L-shaped support plate 101, thereby improving the stability of the left-right sliding of the pressure-resistant plate 103 on the L-shaped support plate 101.

[0034] Embodiment 3:

[0035] Reference Figure 1 , Figure 3 The expansion joint structure of the highway bridge is basically the same as that of the first embodiment. Furthermore, both sides of the pressure-resistant plate 103 are inclined. When rain falls on the upper surface of the pressure-resistant plate 103, the rain can be directed to both ends of the pressure-resistant plate 103 through the pressure-resistant plate 103 inclined at both sides, thereby reducing the probability of a large amount of rain remaining on the pressure-resistant plate 103.

[0036] At the same time, after the rainwater at both ends of the guide pressure-resistant plate 103 is filtered by the mud guard mesh plate 201, the rainwater with impurities filtered out can be discharged through the drainage groove 2, thereby avoiding the accumulation of water on the beam body 1 to affect passing vehicles.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A highway bridge expansion joint structure, comprising a beam body (1), wherein an expansion joint is formed between two adjacent beam bodies (1), characterized in that: Also includes: An L-shaped support plate (101) is fixedly connected to the beam body (1). The L-shaped support plate (101) is slidably connected with a pressure-resistant plate (103), the top surface of the pressure-resistant plate (103) is parallel to the top surface of the beam body (1), the beam body (1) is provided with a drainage groove (2), a mud guard mesh plate (201) is fixedly installed in the drainage groove (2), a connecting plate (4) is fixedly connected in the drainage groove (2) below the mud guard mesh plate (201), an air nozzle (401) corresponding to the mesh of the mud guard mesh plate (201) is fixedly installed on the connecting plate (4), a hollow cavity (402) connected to the air nozzle (401) is provided on the connecting plate (4), an air storage cavity (306) is provided on the L-shaped support plate (101), the air storage cavity (306) is fixedly connected with the hollow cavity (402) through a conduit (403), and a solenoid valve (404) is provided on the conduit (403); a pressurizing component, arranged on the L-shaped support plate (101) and used for pressurizing the gas storage chamber (306); A pressure block (307) fixedly connected to the pressure-resistant plate (103); The buffer component is arranged between the pressure block (307) and the L-shaped support plate (101) and is used to provide a buffer for the pressure-resistant plate (103).

2. The highway bridge expansion joint structure according to claim 1, characterized in that: A T-shaped guide block (102) is fixedly connected to the L-shaped support plate (101), a guide slot for use with the T-shaped guide block (102) is provided on the lower side of the pressure-resistant plate (103), and the T-shaped guide block (102) is slidably connected in the guide slot.

3. The highway bridge expansion joint structure according to claim 1, characterized in that: The buffer component comprises a buffer cylinder (3) and a piston disk (301) slidably connected in the buffer cylinder (3); springs (303) are fixedly connected to both sides of the piston disk (301); the side of the spring (303) away from the piston disk (301) is fixedly connected to the inner wall of the buffer cylinder (3); a connecting rod (302) is fixedly connected to the piston disk (301); one end of the connecting rod (302) passes through the buffer cylinder (3) and is fixedly connected to a pressure block (307); and the buffer cylinder (3) is fixedly connected to the L-shaped support plate (101).

4. The highway bridge expansion joint structure according to claim 3, characterized in that: The pressurizing component comprises a pipe 1 (304) and a pipe 2 (305). An air suction cavity is provided on both sides of the piston disc (301) in the buffer cylinder (3). The pipe 1 (304) is fixedly connected to the air suction cavity. One end of the pipe 2 (305) is fixedly connected to the air suction cavity, and the other end is fixedly connected to the air storage cavity (306). Both the pipe 1 (304) and the pipe 2 (305) are provided with a one-way valve.

5. The highway bridge expansion joint structure according to claim 4, characterized in that: It also includes an activated carbon filter (5), which is fixedly installed in the air inlet end of the pipeline (304).

6. The highway bridge expansion joint structure according to claim 1, characterized in that: Both sides of the compression-resistant plate (103) are arranged in an inclined manner.

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