Bridge expansion joint waterproof structure

Abstract

The application discloses a bridge expansion joint waterproof structure and relates to the technical field of bridge waterproofing, which comprises a mounting long frame, a frame plate is mounted on the right side of the mounting long frame, an arc-shaped top plate is arranged on the left side of the mounting long frame, a contact layer is mounted on the side, away from the mounting long frame, of the arc-shaped top plate, and the contact layer is in contact with and extrudes one side of an external gap. The arc-shaped top plate, the moving support rod and the extrusion spring elastic linkage structure are adopted in the application. When displacement and angle deviation of the expansion joint occur, the contact layer is extruded and compressed to extrude the extrusion spring. The extrusion spring continuously outputs reverse jacking force, so that the contact layer is always in close contact with the contact surface of the expansion joint, self-adapting to various micro deformations of the bridge. After the deformation disappears, the extrusion spring is automatically reset, and there is no sealing gap throughout the process.

Description

Technical Field

[0001] This invention relates to the field of bridge waterproofing technology, specifically to a waterproofing structure for bridge expansion joints. Background Technology

[0002] Currently, bridges are affected by temperature, vehicle load, and settlement during use, resulting in lateral expansion and contraction, angular deflection, and slight misalignment. Traditional rigid sealing structures cannot adapt to deformation, which can easily lead to sealing surface separation and increased gaps, causing rainwater leakage. Rainwater, mud, gravel, and other impurities can easily accumulate in the expansion joint area. Traditional unidirectional drainage relying solely on gravity is easily blocked by debris, and long-term water retention will exacerbate leakage and corrode the metal components of the expansion joint and the concrete structure of the bridge. In the process of drainage, ordinary filter screens are fixed in a plane. After the accumulation of impurities, they directly cover and block the drainage channel. There are no redundant drainage paths or emergency drainage methods. After the blockage, the waterproof system fails directly. Expansion joint waterproof components are mostly split splicing structures. The sealing at the joint of the frame and the connection between the top plate and the frame is weak. The splicing gaps are easy to become the breakthrough point for water seepage. The overall waterproof sealing is poor. Drainage blockages and water overload hazards cannot be detected automatically, relying entirely on regular manual inspections. Faults are not detected in time, and long-term water accumulation can easily lead to bridge structural aging and steel corrosion. Summary of the Invention

[0003] The purpose of this invention is to provide a waterproof structure for bridge expansion joints to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a waterproof structure for bridge expansion joints, comprising an installation frame, a frame plate installed on the right side of the installation frame, an arc-shaped top plate provided on the left side of the installation frame, and a contact layer installed on the side of the arc-shaped top plate away from the installation frame, wherein the contact layer contacts and presses against one side of the external gap. The inner cavity of the mounting frame is equipped with a fixed partition. Several fixed cylinders are movably installed at equal intervals from the upper and lower ends of the left side of the fixed partition. A movable slider is movably installed in the inner cavity of each fixed cylinder. A movable support rod is installed on the side of the movable slider away from the fixed partition. A compression spring is installed on the side of the movable slider away from the movable support rod. The end of the movable support rod away from the movable slider is connected to the right side of the arc-shaped top plate.

[0005] Preferably, a protective sleeve is installed around the left side of the mounting frame, and the side of the protective sleeve away from the mounting frame is connected to the right side of the arc-shaped top plate. A sealing groove is opened around the right side of the mounting frame, and a sealing strip is installed around the left side of the frame plate, with the sealing strip abutting against the inner cavity of the sealing groove.

[0006] Preferably, a fixing pin plate is installed on the right side of the frame plate by means of a rubber block, and a plurality of pin holes are equally spaced on the outside of the fixing pin plate, and a fixing round opening is provided in the middle of the fixing partition plate.

[0007] Preferably, a collection trough is provided at the top of the inner cavity of the arc-shaped top plate, a plurality of seepage holes are provided at equal intervals on the upper left side of the inner cavity of the collection trough, and a discharge hole is provided on the right side of the bottom of the inner cavity of the collection trough.

[0008] Preferably, a suction pump is installed on the right side of the arc-shaped top plate at the corresponding position of the discharge hole. A delivery pipe is installed at the end of the suction pump away from the arc-shaped top plate. The end of the delivery pipe away from the suction pump passes through the fixed circular opening and a discharge pipe head is installed through the bottom side of the mounting frame.

[0009] Preferably, a one-way valve is installed at the top of the discharge pipe on one side of the fixed partition, and a discharge pipe is installed at the top of the one-way valve. The top of the discharge pipe is connected to the top of the inner cavity of the mounting frame.

[0010] Preferably, a collection frame is installed at the top of the mounting frame, and a discharge hole is opened at the bottom of the inner cavity of the collection frame and the top of the inner cavity of the mounting frame at the corresponding position of the discharge pipe. A rubber strip is installed at the top left side of the collection frame, and the side of the rubber strip away from the collection frame is connected to the upper right side of the arc-shaped top plate.

[0011] Preferably, the inner cavity of the collecting frame is provided with a filtration mechanism, which includes an arc-shaped filter plate. The arc-shaped filter plate is movably installed in the inner cavity of the collecting frame. Several mounting grooves are provided at the lower middle ends of both sides of the inner cavity of the collecting frame. Mounting sliders are slidably installed at the top of the inner cavity of each mounting groove. The end of the mounting slider away from the mounting groove is connected to the outside of the arc-shaped filter plate. A mounting spring is installed at the bottom end of the mounting slider. A touch switch is installed at the lower end of one side of the inner cavity of the mounting groove. The touch switch is connected to the suction pump. A control panel is installed on one side of the inner cavity of the collecting frame. The touch switch is electrically connected to the control panel. The control panel has a transmission module for wireless connection to the outside installed inside. A battery is installed in the inner cavity of the frame. The battery is electrically connected to the suction pump and the control panel.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention adopts an elastic linkage structure of an arc-shaped top plate, a movable support rod, and a compression spring. When the expansion joint is displaced or deviates in angle, the contact layer is compressed by the compression spring. The compression spring continuously outputs a reverse clamping force, so that the contact layer is always in close contact with the expansion joint contact surface. It adapts to various minor deformations of the bridge, and the compression spring automatically resets after the deformation disappears. There are no sealing gaps throughout the process, blocking water seepage from the source. The triple seal is formed by the sealing groove and the sealing strip being inserted and sealed, the outer protective sleeve being wrapped, and the top rubber strip being flexibly connected. This seals all splicing gaps between the long frame and the frame plate, and between the arc-shaped top plate and the frame body, improving the overall airtightness of the device and preventing water leakage at the splicing position. 2. This invention constructs a dual drainage system combining conventional gravity drainage and forced negative pressure suction drainage. Under normal operating conditions, rainwater is guided by rubber strips to the collection frame and discharged naturally along the pipeline by gravity, resulting in low-energy and stable operation. In cases of blockage or heavy rain and water accumulation, the suction pump automatically starts, creating negative pressure in the collection slot of the arc-shaped top plate. This pressure quickly draws out surface water through the seepage holes, forcibly discharging it and solving the problems of pipeline blockage and water accumulation. The arc-shaped filter plate allows impurities to automatically slide to both sides, retaining the central drainage channel and preventing complete blockage by single-point debris. Combined with a spring-sliding installation structure, small accumulations of impurities do not affect drainage, significantly improving the fault tolerance of the filter structure and reducing the frequency of pipeline blockage. When the filter plate is overloaded, it triggers a touch switch, which links the control panel and the wireless transmission module to remotely push information about blockages and water accumulation to staff, enabling real-time early warning of potential hazards. This eliminates the need for frequent manual inspections, accurately locates faults, and improves maintenance efficiency. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure is provided for embodiments of the present invention; Figure 2 A structural diagram of the overall cross-section provided in an embodiment of the present invention; Figure 3 This is a cross-sectional structural diagram of the connection between the top of the mounting frame and the frame plate provided in an embodiment of the present invention; Figure 4 This is a cross-sectional structural diagram of the fixed cylinder provided in an embodiment of the present invention; Figure 5 Provided for embodiments of the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Installation frame; 2. Frame plate; 3. Fixing pin plate; 4. Collection frame; 5. Filtering mechanism; 501. Arc-shaped filter plate; 502. Installation slider; 503. Installation groove; 504. Touch switch; 505. Installation spring; 6. Rubber strip; 7. Arc-shaped top plate; 8. Contact layer; 9. Discharge pipe head; 10. Fixing partition; 11. Fixing cylinder; 12. Moving support rod; 13. Compression spring; 14. Moving slider; 15. Suction pump; 16. Delivery pipe; 17. Discharge pipe; 18. Discharge check valve; 19. Collection trough; 20. Seepage hole; 21. Battery; 22. Sealing strip; 23. Sealing groove; 24. Protective sleeve. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-5 The present invention provides a technical solution: a waterproof structure for bridge expansion joints, including an installation frame 1, a frame plate 2 installed on the right side of the installation frame 1, an arc-shaped top plate 7 provided on the left side of the installation frame 1, and a contact layer 8 installed on the side of the arc-shaped top plate 7 away from the installation frame 1, and the contact layer 8 is in contact and pressed with one side of the external gap. The inner cavity of the mounting frame 1 is equipped with a fixed partition 10. Several fixed cylinders 11 are installed at equal intervals from the upper and lower ends of the left middle part of the fixed partition 10 via hinges. Each fixed cylinder 11 has a movable slider 14 movably installed inside its inner cavity. Each movable slider 14 has a movable support rod 12 installed on the side away from the fixed partition 10. Each movable slider 14 has a compression spring 13 installed on the side away from the movable support rod 12. The end of the movable support rod 12 away from the movable slider 14 is connected to the right side of the arc-shaped top plate 7 via a hinge.

[0017] The mounting frame 1 is equipped with a protective sleeve 24 on its left side. The side of the protective sleeve 24 away from the mounting frame 1 is connected to the right side of the arc-shaped top plate 7. The mounting frame 1 is provided with a sealing groove 23 on its right side. The frame plate 2 is equipped with a sealing strip 22 on its left side, and the sealing strip 22 is connected to the inner cavity of the sealing groove 23. The specific implementation method is as follows: During use, the long frame 1 is installed inside one side of the expansion joint. After installation, the contact layer 8 installed on one side of the arc-shaped top plate 7 is pressed against the other side of the expansion joint cavity. During the process, when the arc-shaped top plate 7 is pressed, it will move the movable support rod 12 and the movable slider 14 towards the fixed cylinder 11. When the movable slider 14 slides inside the fixed cylinder 11, it presses the compression spring 13. The reaction force generated by the compression spring 13 improves the fit between the contact layer 8 and the expansion joint. When the expansion joint moves or moves at an angle, the arc-shaped top plate 7 can push the movable support rod 12 and press the movable slider 14, and also press the compression spring 13. When the expansion joint returns to its original position, the compression spring 13 is reset to keep the contact layer 8 in a close fit, ensuring waterproofing during use.

[0018] A fixing pin plate 3 is installed on the right side of the frame plate 2 by means of a rubber block. The fixing pin plate 3 has several pin holes equidistantly opened on its outside. A fixing round opening is opened in the middle of the fixing partition plate 10. The top of the inner cavity of the arc-shaped top plate 7 is provided with a collection trough 19, and a plurality of seepage holes 20 are provided at equal intervals on the upper left side of the inner cavity of the collection trough 19. A discharge hole is provided on the right side of the bottom of the inner cavity of the collection trough 19. A suction pump 15 is installed on the right side of the arc-shaped top plate 7 at the corresponding position of the discharge hole. A delivery pipe 16 is installed at the end of the suction pump 15 away from the arc-shaped top plate 7. The end of the delivery pipe 16 away from the suction pump 15 passes through the fixed round opening and a discharge pipe head 9 is installed through the bottom side of the mounting frame 1. A discharge check valve 18 is installed at the top of the discharge pipe 17 on one side of the fixed partition 10. The discharge pipe 17 is installed at the top of the discharge check valve 18. The top of the discharge pipe 17 is connected to the top of the inner cavity of the mounting frame 1. The top of the mounting frame 1 is equipped with a collection frame 4. The bottom of the inner cavity of the collection frame 4 and the top of the inner cavity of the mounting frame 1 are provided with discharge holes at the corresponding positions of the discharge pipe 17. A rubber strip 6 is installed on the top left side of the collection frame 4. The side of the rubber strip 6 away from the collection frame 4 is connected to the upper right side of the arc-shaped top plate 7. The inner cavity of the collecting frame 4 is provided with a filtration mechanism 5, which includes an arc-shaped filter plate 501. The arc-shaped filter plate 501 is movably installed in the inner cavity of the collecting frame 4. Several mounting grooves 503 are opened at the lower middle of both sides of the inner cavity of the collecting frame 4. Mounting sliders 502 are slidably installed at the top of the inner cavity of each mounting groove 503. The end of the mounting slider 502 away from the mounting groove 503 is connected to the outside of the arc-shaped filter plate 501. A mounting spring 505 is installed at the bottom of the mounting slider 502. A touch switch 504 is installed at the lower end of one side of the inner cavity of the mounting groove 503. The touch switch 504 is connected to the suction pump 15. A control panel is installed on one side of the inner cavity of the collecting frame 1. The touch switch 504 is electrically connected to the control panel. The control panel has a transmission module for wireless connection to the outside installed inside. A battery 21 is installed in the inner cavity of the frame plate 2. The battery 21 is electrically connected to the suction pump 15 and the control panel. The specific implementation method is as follows: During the rainy season, when liquid accumulates on the sealing end, the rubber strip 6 allows the liquid to flow into the collection frame 4, and finally into the conveying pipe 16 through the discharge pipe 17. The liquid is then discharged through the discharge head 9 installed at one end of the conveying pipe 16 to prevent accumulation. When the liquid flows into the collection frame 4, the arc-shaped filter plate 501 installed inside the collection frame 4 removes impurities from the liquid, preventing clogging during later use. Even if impurities accumulate on the upper part of the arc-shaped filter plate 501, the arc-shaped structure of the filter plate 501 allows the impurities to slide to both sides, still allowing drainage through the unobstructed area. When there is too much clogged impurities or too much accumulated rainwater, gravity will cause the arc-shaped filter plate 501 to move downwards, and the mounting slider 502 to slide towards the bottom of the mounting groove 503. During the sliding process... The installation spring 505 is squeezed during the process. Later, the squeezing of the installation spring 505 drives the installation slider 502 and the arc-shaped filter plate 501 to reset. When the installation slider 502 moves to the bottom of the inner cavity of the installation groove 503, it contacts the touch switch 504. The touch switch 504 starts the suction pump 15, which sucks the liquid accumulated in the collection trough 19 and creates a negative pressure state in the inner cavity of the collection trough 19. The liquid accumulated on the upper end of the arc-shaped top plate 7 is treated through the seepage hole 20 and discharged through the delivery pipe 16 and the discharge pipe head 9. In normal use, the liquid is discharged through the collection frame 4 and the discharge pipe 17. When the conventional discharge method fails, the liquid is discharged through the active suction structure. The dual discharge force improves the efficiency of the treatment. When the collection frame 4 is blocked, it can also be treated by active suction, and the staff can be notified to check.

[0019] 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.

[0020] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure for bridge expansion joints, comprising an installation frame (1), wherein a frame plate (2) is installed on the right side of the installation frame (1), characterized in that: An arc-shaped top plate (7) is provided on the left side of the mounting frame (1). A contact layer (8) is installed on the side of the arc-shaped top plate (7) away from the mounting frame (1), and the contact layer (8) is in contact and pressed with one side of the external gap. The inner cavity of the mounting frame (1) is equipped with a fixed partition (10). Several fixed cylinders (11) are equidistantly installed on the upper and lower ends of the left middle part of the fixed partition (10). A movable slider (14) is movably installed in the inner cavity of each fixed cylinder (11). A movable support rod (12) is installed on the side of the movable slider (14) away from the fixed partition (10). A compression spring (13) is installed on the side of the movable slider (14) away from the movable support rod (12). The end of the movable support rod (12) away from the movable slider (14) is connected to the right side of the arc-shaped top plate (7).

2. The waterproof structure for bridge expansion joints according to claim 1, characterized in that: The mounting frame (1) is equipped with a protective sleeve (24) on the left side. The side of the protective sleeve (24) away from the mounting frame (1) is connected to the right side of the arc-shaped top plate (7). The mounting frame (1) is provided with a sealing groove (23) on the right side. The frame plate (2) is equipped with a sealing strip (22) on the left side, and the sealing strip (22) is connected to the inner cavity of the sealing groove (23).

3. The waterproof structure for bridge expansion joints according to claim 2, characterized in that: A fixing pin plate (3) is installed on the right side of the frame plate (2) by means of a rubber block. The fixing pin plate (3) has several pin holes equidistantly opened on the outside. The fixing partition plate (10) has a fixing round opening in the middle.

4. A waterproof structure for bridge expansion joints according to claim 3, characterized in that: The top of the inner cavity of the arc-shaped top plate (7) is provided with a collection trough (19), and a number of seepage holes (20) are provided at equal intervals on the upper left side of the inner cavity of the collection trough (19). The bottom right side of the inner cavity of the collection trough (19) is provided with a discharge hole.

5. A waterproof structure for bridge expansion joints according to claim 4, characterized in that: A suction pump (15) is installed on the right side of the arc-shaped top plate (7) at the corresponding position of the discharge hole. A delivery pipe (16) is installed at the end of the suction pump (15) away from the arc-shaped top plate (7). The end of the delivery pipe (16) away from the suction pump (15) passes through the fixed round opening and a discharge pipe head (9) is installed through the bottom side of the mounting frame (1).

6. A waterproof structure for bridge expansion joints according to claim 5, characterized in that: The top of the discharge pipe (17) is located on one side of the fixed partition (10) and a discharge check valve (18) is installed. The top of the discharge check valve (18) is equipped with the discharge pipe (17). The top of the discharge pipe (17) is connected to the top of the inner cavity of the mounting frame (1).

7. A waterproof structure for bridge expansion joints according to claim 6, characterized in that: The top of the mounting frame (1) is equipped with a collection frame (4). The bottom of the inner cavity of the collection frame (4) and the top of the inner cavity of the mounting frame (1) are provided with discharge holes at the corresponding positions of the discharge pipe (17). A rubber strip (6) is installed on the top left side of the collection frame (4). The side of the rubber strip (6) away from the collection frame (4) is connected to the upper right side of the arc-shaped top plate (7).

8. A waterproof structure for bridge expansion joints according to claim 7, characterized in that: The inner cavity of the collecting frame (4) is provided with a filtration mechanism (5), which includes an arc-shaped filter plate (501). The arc-shaped filter plate (501) is movably installed in the inner cavity of the collecting frame (4). Several mounting grooves (503) are provided on both sides of the lower middle end of the inner cavity of the collecting frame (4). Mounting sliders (502) are slidably installed at the top of the inner cavity of each mounting groove (503). The end of the mounting slider (502) away from the mounting groove (503) is connected to the outside of the arc-shaped filter plate (501). 2) A mounting spring (505) is installed at the bottom. A touch switch (504) is installed at the lower end of one side of the inner cavity of the mounting slide (503). The touch switch (504) is connected to the suction pump (15). A control panel is installed on one side of the inner cavity of the mounting frame (1). The touch switch (504) is electrically connected to the control panel. A transmission module for wireless connection to the outside is installed inside the control panel. A storage battery (21) is installed in the inner cavity of the frame plate (2). The storage battery (21) is electrically connected to the suction pump (15) and the control panel.

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