Flexible connection device for a bridge expansion joint

Abstract

The application provides a flexible connecting device of bridge deck expansion joint, and relates to the technical field of bridge engineering. The flexible connecting device of bridge deck expansion joint comprises two bridge bodies, the inside of each of the two bridge bodies is fixedly connected with a concrete bottom plate, one side of each of the two concrete bottom plates is fixedly connected with a side support column, the top of each of the two concrete bottom plates is provided with a concrete base, the top of each of the two concrete bases is fixedly connected with a water shedding plate, the top of each of the two water shedding plates is provided with a piston sleeve, the top of each of the two fixed plates is fixedly connected with a plurality of plug-in plates, the inside of each of the two side support columns is provided with a drainage assembly, one side of each of the two side support columns is fixedly connected with a side plate, and one side of each of the two side plates is provided with a cleaning assembly. The flexible connecting device of bridge deck expansion joint increases stability, improves safety when the plurality of plug-in plates are displaced, slows down impact force, pushes out the blockage from the top of the guide plate, and prevents the blockage from affecting drainage.

Description

Technical Field

[0001] This invention relates to a bridge deck connection device, specifically a flexible connection device for bridge deck expansion joints, belonging to the field of bridge engineering technology. Background Technology

[0002] Expansion joints, also known as building expansion joints, are structural joints installed at appropriate locations along the construction joint direction of a building or structure to prevent cracks or damage caused by changes in climate temperature (thermal expansion and contraction). Expansion joints divide building components above the foundation, such as walls, floors, and roofs (except for wooden roofs), into two independent parts, allowing the building or structure to expand and contract horizontally along its length.

[0003] Choosing the appropriate gap size for expansion joints is crucial; larger gaps increase the risk of damage to the expansion joint. Gaps that are too large or too small, or gaps adjusted without considering installation temperature, are particularly prone to damage, especially to plate-type rubber expansion joints. Even on continuous bridge decks, cracks often appear in the pavement. Therefore, solutions include pre-cutting the bridge deck to create joints, using a softer pavement layer to absorb cracks, or installing small expansion joints.

[0004] Currently, there are two main types of bridge expansion joint devices in the industry: modular support expansion joints and steel comb-plate expansion joints. Modular support expansion joints are advantageous due to their robustness, reliability, long service life, and maximum expansion range of up to 1200mm, meeting the expansion deformation requirements of most bridge projects. However, they are less smooth to drive on and produce more tire noise. Steel comb-plate expansion joints offer smoother driving and better vibration and noise reduction. However, they are prone to dust accumulation between the comb-shaped joints. After a period of use, the accumulated dust inside the comb teeth can harden and require manual cleaning; otherwise, it can clog the expansion joints and affect the expansion range. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a flexible connection device for bridge deck expansion joints in order to solve the above-mentioned problems, such as uneven driving and high tire noise in modular support expansion joints and easy accumulation of dust and blockage in steel comb-tooth plate expansion joints.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a flexible connection device for bridge deck expansion joints, comprising two bridge bodies, each with a concrete base plate fixedly connected inside; a side support column fixedly connected to one side of each concrete base plate; a concrete base provided on the top of each concrete base plate; a drainage plate fixedly connected to the top of each concrete base; a piston sleeve provided on the top of each drainage plate; sliding rods slidably connected to both sides inside the piston sleeve; and piston plates fixedly connected to one end of each sliding rod extending into the piston sleeve; both piston plates are adapted to the piston sleeve. Each slide rod has a baffle fixedly connected to its other end. A positioning plate is fixedly connected to one side of each baffle. A limiting spring is sleeved on the outside of the slide rod. Both ends of the limiting spring are fixedly connected to the baffle and the piston sleeve, respectively. A universal joint is fixedly connected to one side of each positioning plate. A fixing plate is fixedly connected to one end of each universal joint. Each fixing plate is fixedly connected to two drainage plates. Multiple plug-in plates are fixedly connected to the top of each fixing plate, and these plug-in plates are staggered. A drainage assembly is installed inside each side support column. A side plate is fixedly connected to one side of each side support column, and a cleaning assembly is installed on one side of each side plate.

[0009] Preferably, a first steel plate is embedded on one side of each of the two concrete base plates. A first embedded part is integrally machined on one side of the top of the first steel plate, and a second embedded part is integrally machined on the other side of the top of the first steel plate. Both the first and second embedded parts are embedded inside the concrete base, which is beneficial for fixing the concrete base plates and the concrete base and strengthening the fixing effect. A second steel plate is embedded on the other side of the concrete base plate. Multiple third embedded parts are integrally machined on the top of the second steel plate. The multiple third embedded parts are embedded inside the concrete base. The first and second embedded parts are oriented opposite to the second steel plate, which is beneficial for improving stability, preventing detachment, and strengthening the fixing effect.

[0010] Preferably, the concrete base slab is internally fixedly connected with multiple positioning ribs, and each of the outer ends of the multiple positioning ribs is fixedly connected with a locking sleeve. Each of the two locking sleeves is fixedly connected with a top rod, and each of the two top rods is fixedly connected with a support sleeve. This facilitates the fixation of the concrete base slab and the concrete foundation, improves stability, and prevents loosening.

[0011] Preferably, the drainage assembly includes multiple joints, a water collection pipe, a guide pipe, and a drain pipe. The water collection pipe is embedded inside a concrete base. Multiple joints are fixedly connected to the top of the water collection pipe and communicate with it. Multiple joints are also fitted to the bottom of a drainage plate, allowing rainwater to leak from the drainage plate and fall along the joints into the water collection pipe. The guide pipe is fixedly connected to the bottom of the water collection pipe and communicates with it. The drain pipe is fixedly connected to the bottom of the guide pipe and passes through a support sleeve, fitting the sleeve to support the drain pipe and improve stability. This allows water in the water collection pipe to drain out along the guide pipe from the drain pipe, facilitating drainage and preventing water accumulation from affecting vehicle traffic on the road.

[0012] Preferably, the cleaning assembly includes two side plates, each with a groove at its top. A fixing block is fixedly connected to both sides of the groove. A pressure plate is hinged to one side of each fixing block. A connecting block is fixedly connected to one side of the bottom of each pressure plate. A pressure block is positioned between the two connecting blocks. A slider is slidably connected to both sides of the pressure block. A crossbar is fixedly connected to one side of each slider. The crossbars pass through both ends of the pressure block and are slidably connected to it. A hinge block is fixedly connected to the end of each crossbar away from the slider. The hinge block is hinged to the two connecting blocks. When a vehicle passes over the pressure plate, the pressure plate presses down, causing the connecting block to descend. The descending connecting block moves the hinge block, causing the hinge block to move the crossbar and pressure block downwards. As the pressure block and crossbar descend, the crossbar retracts into the pressure block to prevent jamming.

[0013] Preferably, a toothed plate is fixedly connected to the bottom of the pressure block, and a support plate is fixedly connected inside the side plate. The toothed plate passes through the support plate and is slidably connected to it. A return spring is fixedly connected to the top of the support plate. The return spring is sleeved on the outside of the toothed plate, and the top of the return spring is fixedly connected to the bottom of the pressure block, which helps to support the pressure block and reset it. A rotating rod is rotatably connected to one side inside the side plate. A one-way bearing is provided on the outside of one end of the rotating rod, and a gear is fixedly connected to the outside of the one-way bearing. The toothed plate meshes with the gear, so that when the pressure block descends, it drives the toothed plate to descend. The descent of the toothed plate drives the gear to rotate. When the gear rotates, it drives the rotating rod to rotate. When the return spring pushes the pressure block to rise and reset, the toothed plate drives the gear to rotate. The gear drives the one-way bearing to rotate freely, thus not driving the rotating rod to rotate. This ensures that after each pressure, the pressure plate drives the rotating rod to rotate in the same direction.

[0014] Preferably, the rotating rod passes through the side plate and is rotatably connected to the side plate. A rotating sleeve is fixedly connected to one end of the rotating rod. A reciprocating screw is provided inside the rotating sleeve. A support plate is fixedly connected to the top of the drainage plate. A threaded sleeve is fixedly connected to the top of the support plate. The reciprocating screw passes through the threaded sleeve and is threadedly connected to the threaded sleeve. A vertical plate is rotatably connected to one end of the threaded sleeve, so that the rotating rod drives the rotating sleeve to rotate, thereby driving the reciprocating screw to rotate. The piston sleeve limits the reciprocating screw, so that the reciprocating screw moves when it rotates, thereby pushing the vertical plate to move.

[0015] Preferably, a push plate is fixedly connected to one side of the vertical plate, and a spring sheet is fixedly connected between the push plate and the vertical plate. A horizontal plate is fixedly connected to one side of the top of the vertical plate. A guide plate is provided between the multiple plug-in plates. One side of the guide plate is set as an inclined surface. A limit plate is fixedly connected to one side of the vertical plate. The limit plate is adapted to the rotating sleeve. The limit plate is set at the bottom of the guide plate so that when the vertical plate moves, it can drive the push plate to move and make the push plate rise along the inclined surface of the guide plate, thereby squeezing the spring sheet and causing the push plate to push the blockage to move.

[0016] Preferably, a sealing ring is fixedly connected to the outside of the piston plate, and multiple through holes are opened inside the piston plate. The piston sleeve is filled with buffer solution, which flows through the through holes to form a damping effect and buffer the impact.

[0017] Preferably, the rotating sleeve has multiple sliding grooves inside, and one end of the reciprocating screw is fixedly connected to multiple sliding plates. The multiple sliding plates are respectively adapted to the multiple sliding grooves and are slidably connected to the multiple sliding grooves, which is beneficial to limit the reciprocating screw and enable the rotating sleeve to drive the reciprocating screw to rotate synchronously when rotating.

[0018] This invention provides a flexible connection device for bridge deck expansion joints, which has the following beneficial effects:

[0019] 1. The flexible connection device of the bridge deck expansion joint, when displacement occurs between the two bridge bodies, causes the bridge body to move synchronously with the concrete base plate and concrete foundation, and simultaneously pushes two fixed plates to move. When the fixed plates move, they drive the universal joint to move and push the positioning plate to move. When the positioning plate moves, it drives the baffle to move and causes the baffle to compress the limit spring, so that the limit spring buffers and supports the baffle. When the baffle moves, it pushes the slide rod to move and drives the piston plate to move inside the piston sleeve. When the piston plate moves, the buffer solution inside the piston sleeve flows through multiple through holes inside the piston plate to form a damping effect, thereby improving the buffering effect, increasing stability, improving safety when multiple plug plates are displaced, reducing impact force, and reducing tire noise.

[0020] 2. The flexible connection device of the bridge deck expansion joint, with the first and second embedded parts both embedded inside the concrete base, facilitates the fixation of the concrete base plate and the concrete base, enhancing the fixation effect. A second steel plate is embedded on the other side inside the concrete base plate, and multiple third embedded parts are integrally processed on the top of the second steel plate. The multiple third embedded parts are all embedded inside the concrete base. The first and second embedded parts are oriented opposite to the second steel plate, which helps to improve stability, prevent detachment, and enhance the fixation effect. Multiple positioning ribs are fixedly connected inside the concrete base plate. Locking sleeves are fixedly connected to both ends of the outer side of the multiple positioning ribs. Top rods are fixedly connected to the top of the two locking sleeves, and support sleeves are fixedly connected to the top of the two top rods. This facilitates the fixation of the concrete base plate and the concrete base, improves stability, and prevents loosening.

[0021] 3. The flexible connection device of the bridge deck expansion joint allows rainwater to fall along the drainage plate and be discharged into the water collection pipe through multiple joints. The water collection pipe discharges the water into the guide pipe and then discharges it to the outside of the bridge body along the drainage pipe. This helps to drain rainwater, prevent water accumulation from affecting the bridge deck, and improve the safety of driving on the bridge deck.

[0022] 4. The flexible connection device of the bridge deck expansion joint works by pressing down on the pressure plate as vehicles travel over it. This pressure plate then presses down on the connecting block, which pushes the crossbar and pressure block downwards. As the pressure block descends, it also causes the toothed plate to descend, compressing the return spring. Simultaneously, the toothed plate drives the gear to rotate, which in turn drives the rotating rod to rotate. The rotating rod then drives the rotating sleeve to rotate, which is limited by the sliding groove and slide plate. This causes the reciprocating screw to rotate. When the reciprocating screw rotates, the threaded sleeve limits its movement, causing the screw to move horizontally. This movement, in turn, causes the vertical plate to move horizontally, which in turn moves the push plate. As the push plate moves, it contacts the guide plate, causing it to bend and push out any blockages from the top of the guide plate, preventing blockages from affecting drainage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a side sectional view of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged view of the A-section structure;

[0026] Figure 4 For the present invention Figure 2 Enlarged view of the structure of part B.

[0027] Figure 5 For the present invention Figure 2 Enlarged view of the C-section structure;

[0028] Figure 6 This is a schematic diagram of the side support column of the present invention;

[0029] Figure 7 This is a schematic diagram of the support plate of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the first steel plate of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the second steel plate of the present invention;

[0032] Figure 10 This is a schematic diagram of the hydrophobic plate of the present invention;

[0033] Figure 11 This is a schematic diagram of the piston plate of the present invention;

[0034] Figure 12 This is a schematic diagram of the gear structure of the present invention;

[0035] Figure 13 This is a schematic diagram of the rotating sleeve of the present invention.

[0036] In the diagram: 1. Bridge body; 2. Concrete base slab; 3. Side support column; 4. Concrete base; 5. Drainage plate; 6. Piston sleeve; 7. Sliding rod; 8. Piston plate; 9. Baffle; 10. Limiting spring; 11. Positioning plate; 12. Universal joint; 13. Fixing plate; 14. Insertion plate; 15. Joint; 16. Water collection pipe; 17. Drainage pipe; 18. Support sleeve; 19. Drainage pipe; 20. Top rod; 21. Positioning rib; 22. Locking sleeve; 23. First steel plate; 24. First embedded part; 25. Second embedded part; 26. Second steel plate; 27. 1. Third embedded part; 28. Side plate; 29. ​​Side edge plate; 30. Fixing block; 31. Pressure plate; 32. Connecting block; 33. Pressure block; 34. Crossbar; 35. Slider; 36. Hinge block; 37. Tooth plate; 38. Support plate; 39. Return spring; 40. Rotating rod; 41. One-way bearing; 42. Gear; 43. Rotating sleeve; 44. Support plate; 45. Reciprocating screw; 46. Threaded sleeve; 47. Vertical plate; 48. Push plate; 49. Spring; 50. Horizontal plate; 51. Limiting plate; 52. Slide groove; 53. Slide plate; 54. Guide plate. Detailed Implementation

[0037] This invention provides a flexible connection device for bridge deck expansion joints.

[0038] Please see Figure 1 , Figure 2 , Figure 5 , Figure 8 , Figure 9 , Figure 10 and Figure 11 The system includes two bridge bodies 1, each with a concrete base slab 2 fixedly connected inside. A side support column 3 is fixedly connected to one side of each concrete base slab 2. A concrete base 4 is provided on top of each concrete base slab 2. A drainage plate 5 is fixedly connected to the top of each drainage plate 5. A piston sleeve 6 is provided on top of each drainage plate 5. Sliding rods 7 are slidably connected to both sides of the piston sleeve 6. A piston plate 8 is fixedly connected to one end of each sliding rod 7 extending into the piston sleeve 6. Both piston plates 8 are adapted to fit the piston sleeve 6. A sealing ring is fixedly connected to the outside of each piston plate 8. Multiple through holes are opened inside each piston plate 8. The cylinder 6 is filled with buffer solution, which flows through the through hole to create a damping effect for buffering. Each of the two slide rods 7 has a baffle 9 fixedly connected to its other end. Each of the two baffles 9 has a positioning plate 11 fixedly connected to one side. A limiting spring 10 is fitted onto the outside of the slide rod 7, with both ends of the limiting spring 10 fixedly connected to the baffle 9 and the piston sleeve 6, respectively. Each of the two positioning plates 11 has a universal joint 12 fixedly connected to one side. Each of the two universal joints 12 has a fixing plate 13 fixedly connected to one end. The two fixing plates 13 are fixedly connected to two hydrophobic plates 5, respectively. Multiple plug-in plates 14 are fixedly connected to the top of each of the two fixing plates 13, and the multiple plug-in plates 14 are staggered. The side support columns 3 are equipped with drainage components. Side plates 28 are fixedly connected to one side of each side support column 3. Cleaning components are installed on one side of each side plate 28. A first steel plate 23 is embedded in one side of each of the two concrete base slabs 2. A first embedded part 24 is integrally machined onto one side of the top of the first steel plate 23, and a second embedded part 25 is integrally machined onto the other side of the top of the first steel plate 23. Both the first and second embedded parts 24 and 25 are embedded inside the concrete base 4, which facilitates the fixing of the concrete base slabs 2 and the concrete base 4 and enhances the fixing effect. A second steel plate 26 is embedded in the other side of the concrete base slab 2. The top of the plate 26 is integrally processed with multiple third embedded parts 27, which are all embedded in the concrete base 4. The first embedded part 24 and the second embedded part 25 are opposite to the direction of the second steel plate 26, which helps to improve stability, prevent falling off, and strengthen the fixing effect. Multiple positioning ribs 21 are fixedly connected inside the concrete base plate 2. Locking sleeves 22 are fixedly connected to both ends of the outer side of the multiple positioning ribs 21. Top rods 20 are fixedly connected to the top of the two locking sleeves 22. Support sleeves 18 are fixedly connected to the top of the two top rods 20. This helps to fix the concrete base plate 2 and the concrete base 4, improve stability, and prevent loosening.

[0039] Specifically, when displacement occurs between the two bridge bodies 1, the bridge body 1 drives the concrete base plate 2 and concrete foundation 4 to move synchronously, and simultaneously pushes the two fixed plates 13 to move. When the fixed plates 13 move, they drive the universal joint 12 to move and push the positioning plate 11 to move. When the positioning plate 11 moves, it drives the baffle 9 to move and causes the baffle 9 to compress the limiting spring 10, so that the limiting spring 10 buffers and supports the baffle 9. When the baffle 9 moves, it pushes the sliding rod 7 to move and drives the piston plate 8 to move inside the piston sleeve 6. When the piston plate 8 moves, the buffer solution inside the piston sleeve 6 flows through multiple through holes inside the piston plate 8 to form a damping effect, thereby improving the buffering effect, increasing stability, and improving safety and reducing impact force when multiple plug plates 14 are displaced.

[0040] The first embedded part 24 and the second embedded part 25 are both embedded inside the concrete base 4, which helps to fix the concrete base 2 and the concrete base 4 and strengthens the fixing effect. A second steel plate 26 is embedded on the other side of the concrete base 2. Multiple third embedded parts 27 are integrally processed on the top of the second steel plate 26. The multiple third embedded parts 27 are all embedded inside the concrete base 4. The first embedded part 24 and the second embedded part 25 are opposite to the second steel plate 26, which helps to improve stability, prevent falling off, and strengthen the fixing effect. Multiple positioning ribs 21 are fixedly connected inside the concrete base 2. Locking sleeves 22 are fixedly connected to both ends of the outer side of the multiple positioning ribs 21. Top rods 20 are fixedly connected to the top of the two locking sleeves 22. Support sleeves 18 are fixedly connected to the top of the two top rods 20. This helps to fix the concrete base 2 and the concrete base 4, improve stability, and prevent loosening.

[0041] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 10 The drainage assembly includes multiple connectors 15, a water collection pipe 16, a guide pipe 17, and a drain pipe 19. The water collection pipe 16 is embedded inside the concrete base 4. The multiple connectors 15 are fixedly connected to the top of the water collection pipe 16 and communicate with it. The multiple connectors 15 are attached to the bottom of the drainage plate 5, allowing rainwater to leak out from the drainage plate 5 and fall along the connectors 15 into the water collection pipe 16 and slide down along it. The guide pipe 17 is fixedly connected to the bottom of the water collection pipe 16 and communicates with it. The drain pipe 19 is fixedly connected to the bottom of the guide pipe 17 and passes through the support sleeve 18 and is adapted to fit the support sleeve 18. The support sleeve 18 supports the drain pipe 19, improving stability, and allows water in the water collection pipe 16 to be discharged outward from the drain pipe 19 along the guide pipe 17, which is beneficial for drainage and prevents water accumulation from affecting the road and vehicle traffic.

[0042] Specifically, rainwater is allowed to fall along the drainage plate 5 and is discharged into the water collection pipe 16 through multiple joints 15. The water collection pipe 16 discharges the water into the water guide pipe 17 and discharges it to the outside of the bridge body 1 along the drainage pipe 19. This helps to drain rainwater, prevent water accumulation from affecting the bridge surface, and improve the safety of driving on the bridge surface.

[0043] Please refer to it again. Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 12 and Figure 13 The cleaning component includes two side plates 29, each with a groove at its top. Fixing blocks 30 are fixedly connected to both sides of the grooves on both sides of each side plate 29. A pressure plate 31 is hinged to one side of each fixing block 30. A connecting block 32 is fixedly connected to one side of the bottom of each pressure plate 31. A pressure block 33 is positioned between the two connecting blocks 32. Sliding sliders 35 are slidably connected to both sides of the pressure block 33. A crossbar 34 is fixedly connected to one side of each sliding slider 35, and the crossbar 34 passes through both ends of the pressure block 33. It is slidably connected to the pressure block 33. The ends of the two crossbars 34 away from the slider 35 are fixedly connected to the hinge blocks 36. The two hinge blocks 36 are respectively hinged to the two connecting blocks 32. When the vehicle passes over the pressure plate 31, the pressure plate 31 presses down and causes the pressure plate 31 to drive the connecting blocks 32 to descend. The descent of the connecting blocks 32 causes the hinge blocks 36 to move and causes the hinge blocks 36 to drive the crossbars 34 and the pressure block 33 to descend. When the pressure block 33 and the crossbar 34 descend, the crossbar 34 retracts into the pressure block 33 to prevent jamming.

[0044] A toothed plate 37 is fixedly connected to the bottom of the pressure block 33. A support plate 38 is fixedly connected inside the side plate 29. The toothed plate 37 passes through the support plate 38 and is slidably connected to it. A return spring 39 is fixedly connected to the top of the support plate 38. The return spring 39 is sleeved on the outside of the toothed plate 37. The top of the return spring 39 is fixedly connected to the bottom of the pressure block 33, which helps to support the pressure block 33 and reset it. A rotating rod 40 is rotatably connected to one side inside the side plate 29. A one-way bearing 41 is provided on the outer side of one end of the rotating rod 40. A gear 42 is fixedly connected to the outside of plate 31. The gear plate 37 meshes with the gear 42, so that when the pressure block 33 descends, it drives the gear plate 37 to descend. The descent of the gear plate 37 drives the gear 42 to rotate. When the gear 42 rotates, it drives the rotating rod 40 to rotate. When the return spring 39 pushes the pressure block 33 to rise and reset, the gear plate 37 drives the gear 42 to rotate. The gear 42 drives the one-way bearing 41 to rotate freely, so that it does not drive the rotating rod 40 to rotate. This ensures that after each press, the pressure plate 31 will drive the rotating rod 40 to rotate in the same direction.

[0045] The rotating rod 40 passes through the side plate 28 and is rotatably connected to the side plate 28. A rotating sleeve 43 is fixedly connected to one end of the rotating rod 40. A reciprocating screw 45 is installed inside the rotating sleeve 43. Multiple sliding grooves 52 are formed inside the rotating sleeve 43. Multiple sliding plates 53 are fixedly connected to one end of the reciprocating screw 45. The sliding plates 53 are respectively adapted to and slidably connected to the multiple sliding grooves 52, which helps to limit the movement of the reciprocating screw 45, allowing the rotating sleeve 43 to drive the reciprocating screw 45 forward when rotating. The system rotates synchronously. A support plate 44 is fixedly connected to the top of the drainage plate 5. A threaded sleeve 46 is fixedly connected to the top of the support plate 44. A reciprocating screw 45 passes through the threaded sleeve 46 and is threadedly connected to the threaded sleeve 46. A vertical plate 47 is rotatably connected to one end of the threaded sleeve 46, which causes the rotating rod 40 to drive the rotating sleeve 43 to rotate. This causes the rotating sleeve 43 to drive the reciprocating screw 45 to rotate. The piston sleeve 6 limits the reciprocating screw 45, so that the reciprocating screw 45 moves when it rotates, thereby pushing the vertical plate 47 to move.

[0046] A push plate 48 is fixedly connected to one side of the vertical plate 47. A spring piece 49 is fixedly connected between the push plate 48 and the vertical plate 47. A horizontal plate 50 is fixedly connected to one side of the top of the vertical plate 47. A guide plate 54 is provided between multiple plug-in plates 14. One side of the guide plate 54 is set as an inclined surface. A limit plate 51 is fixedly connected to one side of the vertical plate 47. The limit plate 51 is adapted to the rotating sleeve 43. The limit plate 51 is set at the bottom of the guide plate 54 so that when the vertical plate 47 moves, it can drive the push plate 48 to move and make the push plate 48 rise along the inclined surface of the guide plate 54, thereby squeezing the spring piece 49 and causing the push plate 48 to push the blockage to move.

[0047] Specifically, as the vehicle travels past the pressure plate 31, it presses down on the pressure plate 31, causing the pressure plate 31 to press down on the connecting block 32. The connecting block 32 pushes the crossbar 34 and the pressure block 33 downwards. As the pressure block 33 descends, it also causes the toothed plate 37 to descend. When the toothed plate 37 descends, it compresses the return spring 39. Simultaneously, the toothed plate 37 drives the gear 42 to rotate. The rotation of the gear 42 drives the rotating rod 40 to rotate, which in turn drives the rotating sleeve 43 to rotate. This rotation is achieved through the sliding groove 52 and the sliding... Plate 53 limits the movement of the reciprocating screw 45. When the reciprocating screw 45 rotates, the threaded sleeve 46 limits the movement of the reciprocating screw 45, causing it to move during rotation. This causes the vertical plate 47 to move horizontally, and the vertical plate 47 to move the push plate 48. When the push plate 48 moves, it contacts the guide plate 54 and makes the push plate 48 fit against the guide plate 54, causing the push plate 48 to bend and push the blockage out from the top of the guide plate 54, preventing the blockage from affecting drainage.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A flexible connection device for bridge deck expansion joints, comprising two bridge bodies (1), characterized in that: Both of the bridge bodies (1) are fixedly connected to a concrete base plate (2). Both of the concrete base plates (2) are fixedly connected to a side support column (3) on one side. Both of the concrete base plates (2) are provided with a concrete base (4) on top. Both of the concrete bases (4) are fixedly connected to a drainage plate (5) on top. Both of the drainage plates (5) are provided with a piston sleeve (6) on top. Both sides of the piston sleeve (6) are slidably connected to a sliding rod (7). Both sliding rods (7) are fixedly connected to a piston plate (8) at one end extending into the piston sleeve (6). Both piston plates (8) are adapted to the piston sleeve (6). Both sliding rods (7) are fixedly connected to a baffle (9) at the other end. Both baffles (9) are fixedly connected to a side. There is a positioning plate (11), and a limiting spring (10) is sleeved on the outside of the slide rod (7). The two ends of the limiting spring (10) are fixedly connected to the baffle (9) and the piston sleeve (6) respectively. A universal joint (12) is fixedly connected to one side of each of the two positioning plates (11). A fixing plate (13) is fixedly connected to one end of each of the two universal joints (12). The two fixing plates (13) are fixedly connected to two drainage plates (5) respectively. Multiple plug-in plates (14) are fixedly connected to the top of each of the two fixing plates (13). The multiple plug-in plates (14) are staggered. A drainage component is provided inside the side support column (3). A side plate (28) is fixedly connected to one side of each of the two side support columns (3). A cleaning component is provided on one side of each of the two side plates (28).

2. The flexible connection device for bridge deck expansion joints according to claim 1, characterized in that: A first steel plate (23) is embedded on one side of the interior of each of the two concrete base plates (2). A first embedded part (24) is integrally processed on one side of the top of the first steel plate (23). A second embedded part (25) is integrally processed on the other side of the top of the first steel plate (23). The first embedded part (24) and the second embedded part (25) are both embedded inside the concrete base (4). A second steel plate (26) is embedded on the other side of the interior of the concrete base plate (2). A plurality of third embedded parts (27) are integrally processed on the top of the second steel plate (26). The plurality of third embedded parts (27) are all embedded inside the concrete base (4). The first embedded part (24) and the second embedded part (25) are located on one side of the concrete base (4). The second steel plate (26) is located on the other side of the concrete base (4).

3. The flexible connection device for bridge deck expansion joints according to claim 1, characterized in that: The concrete base plate (2) is internally fixedly connected with multiple positioning ribs (21), and each of the two outer ends of the multiple positioning ribs (21) is fixedly connected with a locking sleeve (22). Each of the two locking sleeves (22) is fixedly connected with a top rod (20), and each of the two top rods (20) is fixedly connected with a support sleeve (18).

4. The flexible connection device for bridge deck expansion joints according to claim 3, characterized in that: The drainage assembly includes multiple connectors (15), a water collection pipe (16), a guide pipe (17), and a drain pipe (19). The water collection pipe (16) is embedded inside the concrete base (4). The multiple connectors (15) are fixedly connected to the top of the water collection pipe (16) and communicate with the water collection pipe (16). The multiple connectors (15) are attached to the bottom of the drainage plate (5). The guide pipe (17) is fixedly connected to the bottom of the water collection pipe (16) and communicates with the water collection pipe (16). The drain pipe (19) is fixedly connected to the bottom of the guide pipe (17). The drain pipe (19) passes through the support sleeve (18) and is adapted to the support sleeve (18).

5. The flexible connection device for bridge deck expansion joints according to claim 1, characterized in that: The cleaning assembly includes two side plates (29), each side plate (29) has a groove on its top, and a fixing block (30) is fixedly connected to both sides of the groove inside the side plate (29). A pressure plate (31) is hinged to one side of each of the two fixing blocks (30), and a connecting block (32) is fixedly connected to one side of the bottom of each of the two pressure plates (31). A pressure block (33) is provided between the two connecting blocks (32), and a slider (35) is slidably connected to both sides inside the pressure block (33). A crossbar (34) is fixedly connected to one side of each of the two sliders (35). The two crossbars (34) pass through both ends of the pressure block (33) and are slidably connected to the pressure block (33). A hinge block (36) is fixedly connected to one end of each crossbar (34) away from the slider (35). The two hinge blocks (36) are hinged to the two connecting blocks (32) respectively.

6. The flexible connection device for bridge deck expansion joints according to claim 5, characterized in that: The bottom of the pressure block (33) is fixedly connected to a toothed plate (37), and the inside of the side plate (29) is fixedly connected to a support plate (38). The toothed plate (37) passes through the support plate (38) and is slidably connected to the support plate (38). The top of the support plate (38) is fixedly connected to a return spring (39). The return spring (39) is sleeved on the outside of the toothed plate (37). The top of the return spring (39) is fixedly connected to the bottom of the pressure block (33). A rotating rod (40) is rotatably connected to one side inside the side plate (29). A one-way bearing (41) is provided on the outside of one end of the rotating rod (40). A gear (42) is fixedly connected to the outside of the one-way bearing (41). The toothed plate (37) is meshed with the gear (42).

7. The flexible connection device for bridge deck expansion joints according to claim 6, characterized in that: The rotating rod (40) passes through the side plate (28) and is rotatably connected to the side plate (28). A rotating sleeve (43) is fixedly connected to one end of the rotating rod (40). A reciprocating screw (45) is provided inside the rotating sleeve (43). A support plate (44) is fixedly connected to the top of the drainage plate (5). A threaded sleeve (46) is fixedly connected to the top of the support plate (44). The reciprocating screw (45) passes through the threaded sleeve (46) and is threadedly connected to the threaded sleeve (46). A vertical plate (47) is rotatably connected to one end of the threaded sleeve (46).

8. The flexible connection device for bridge deck expansion joints according to claim 7, characterized in that: A push plate (48) is fixedly connected to one side of the vertical plate (47), and a spring piece (49) is fixedly connected between the push plate (48) and the vertical plate (47). A horizontal plate (50) is fixedly connected to one side of the top of the vertical plate (47). A guide plate (54) is provided between the multiple plug-in plates (14). One side of the guide plate (54) is set as an inclined surface. A limiting plate (51) is fixedly connected to one side of the vertical plate (47). The limiting plate (51) is adapted to the rotating sleeve (43). The limiting plate (51) is located at the bottom of the guide plate (54).

9. A flexible connection device for bridge deck expansion joints according to claim 1, characterized in that: A sealing ring is fixedly connected to the outside of the piston plate (8), and multiple through holes are opened inside the piston plate (8). The piston sleeve (6) is filled with buffer solution.

10. A flexible connection device for bridge deck expansion joints according to claim 8, characterized in that: The rotating sleeve (43) has multiple sliding grooves (52) inside. One end of the reciprocating screw (45) is fixedly connected to multiple sliding plates (53). The multiple sliding plates (53) are respectively adapted to the multiple sliding grooves (52) and are slidably connected to the multiple sliding grooves (52).

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