An assembled bridge reconstruction structure for air car passage and a construction method thereof

Abstract

The application relates to an assembled bridge reconstruction structure for a flying car and a construction method thereof. The top of a plurality of bridge piers is provided with a same bridge body, the top of the bridge body is provided with a protective crash wall on both sides for protection, two clamping sleeves are detachably arranged on the bridge pier, a connecting seat is arranged on one side of the bridge pier, the connecting seat is located between the two clamping sleeves, and the bridge pier is protected; one side of the connecting seat is provided with two first dampers and second dampers. Through the design of the detachable clamping sleeve, the connecting seat, the dampers and the fixing mechanism, the rapid assembly and stable connection of the ramp structure are realized, the flying car taking off and landing, the temporary parking of accident vehicles, charging piles, signboards and other supporting facilities can be provided, the flying car passing efficiency and safety are improved, excellent buffering and damping performance are achieved, and the flying car is easy to adjust and maintain.

Description

Technical Field

[0001] This invention belongs to the field of transportation bridges and relates to a prefabricated bridge modification structure for flying car passage and its construction method. Background Technology

[0002] Against the backdrop of the nation's vigorous promotion of the low-altitude economy strategy, the low-altitude travel sector, represented by electric vertical takeoff and landing (eVTOL), is experiencing explosive growth and is seen as a "new key" to solving the traffic congestion problem in megacities. With the increasing maturity of amphibious flying car technologies such as "XPeng Huitian," these new vehicles possess the unique advantage of "dual-mode operation": they can travel on the ground like ordinary new energy vehicles under normal road conditions, and can switch to low-altitude flight mode at any time when encountering congestion or long-distance travel needs. This seamless travel mode not only greatly improves commuting efficiency but is also a crucial link in building a future three-dimensional transportation network.

[0003] However, the current application scenarios for low-altitude flying cars are mostly limited to open areas such as suburban scenic spots and general aviation airports. In the core urban areas where they are most needed to alleviate congestion, they have instead fallen into the awkward situation of "nowhere to take off." Taking densely built-up areas such as Yuexiu District and Tianhe District in Guangzhou as examples, the densely packed buildings not only make it difficult to install take-off and landing platforms on existing buildings, but also make it difficult to find even an inch of land within the red lines on both sides of the road as a dedicated site. This situation of "usable in the suburbs but not in the city" directly severs the connection between low-altitude travel and citizens' daily lives, turning flying cars into "suburban toys" and failing to truly realize their core value of solving urban traffic problems.

[0004] After multi-dimensional field research and demonstration, the city's vast existing bridge system became the key to breaking the deadlock. As the "skeleton" of the city's three-dimensional transportation, the bridge itself is much higher than the ground, and its lower space and extended areas did not originally serve a traffic function, making them "redundant traffic resources" that can be fully activated. Therefore, the question is whether it is possible to create "sky stations" for flying cars attached to existing bridge traffic without damaging the original structural safety of the bridges, without interfering with normal traffic flow on the bridge deck, and without affecting the airspace and aviation safety under the bridges. This would not only solve the problem of lack of take-off and landing sites at a low cost, but also open up the "Ren and Du channels" of low-altitude travel, allowing flying cars to truly enter the daily lives of ordinary people. Summary of the Invention

[0005] In view of this, in order to solve the problem that existing viaducts cannot provide additional space to accommodate low-altitude flying cars, and that redesigning and rebuilding the bridge pier structure increases construction costs significantly, the present invention provides a prefabricated bridge modification structure for flying car traffic and its construction method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A prefabricated bridge modification structure for flying car passage is provided, which consists of multiple bridge piers on the ground with the same bridge body on top. The top of the bridge body is equipped with anti-collision walls on both sides for protection. Two sleeves are detachably provided on the bridge piers, and a connecting seat is provided on one side of the bridge pier. The connecting seat is located between the two sleeves to protect the bridge pier. Two first dampers and a second damper are provided on one side of the connecting seat. The same connecting plate is fixedly connected to the two first dampers and the second damper. A support beam is fixedly provided on one side of the connecting plate. The same second base plate is fixedly provided on the two support beams. Multiple first mounting seats are fixedly connected to the top of the second base plate. The same ramp is fixedly provided on the top of the multiple first mounting seats. An opening corresponding to the ramp is opened on the outer side of one of the crash barriers, which can be used for aircraft take-off, take-off and landing, and temporary parking of accident vehicles. Two second fixing seats are fixedly installed on one side of the crash barrier, and a limiting plate for limiting the ramp is fixedly installed on one side of the second fixing seat; The fixing mechanism is set on the support beam. One end of it is inserted into the connecting seat, and the other end abuts against the corresponding first mounting seat. It is used to fix the two sleeves, the connecting seat and the connecting plate together.

[0007] Furthermore, the jacket includes two clamping plates, with the pier located between the two clamping plates. A first bolt is inserted through one side of one of the clamping plates, and the other end of the first bolt is threadedly connected to the other clamping plate. Two corresponding first base plates are fitted on the outer wall of the pier. Multiple second bolts are fixed on the top of the first base plates, with the top of the second bolts penetrating the lower clamping plate. A first nut that abuts against the clamping plate is threaded on the outer wall of the second bolt, used to fix the clamping plate to the two first base plates, thereby increasing the contact area between the lower clamping plate and the ground.

[0008] Furthermore, both first dampers are fixedly mounted on one side of the connecting seat. A screw is fixedly mounted on the top of the piston rod of the first damper. A limiting ring is fixedly sleeved on the outer wall of the screw. A first fixing seat that abuts against the limiting ring is sleeved on the outer wall of the screw. The first fixing seat is fixedly mounted on one side of the connecting plate. A second nut is threaded on the outer wall of the screw. The bottom of the second nut abuts against the top of the first fixing seat, which is used to fix the connecting plate on the two first dampers.

[0009] Furthermore, the fixing mechanism includes two second mounting seats fixedly disposed on one side of the connecting plate, a second damper fixedly disposed through the top of the second mounting seat, a third pin fixedly disposed at the bottom end of the piston rod of the second damper, and a second insertion hole for insertion into the third pin on the top of the connecting seat and the top of the upper sleeve, for insertion of the upper sleeve into the connecting seat and for supporting the connecting plate.

[0010] Furthermore, multiple second pins are fixedly installed at the top of the lower jacket, and a fourth insertion hole for inserting the second pins is opened at the bottom of the connecting seat. Two fifth pins are slidably installed through one side of the connecting seat. The outer sides of the two second pins corresponding to the fifth pins are opened with insertion holes for inserting the fifth pins. The outer ends of the fifth pins are used in conjunction with the connecting plate. During the insertion of the connecting plate, the fifth pins are driven to insert into the insertion holes. A fourth spring located inside the connecting seat is sleeved on the outer wall of the fifth pin. The two ends of the fourth spring are fixedly connected to the inner wall of one side of the connecting seat and the outer wall of one end of the fifth pin, respectively. Multiple first pins are fixedly installed at the bottom of the upper jacket, and a first insertion hole for inserting the first pins is opened at the top of the connecting seat.

[0011] Furthermore, a fourth pin corresponding to the third pin is provided through one side of the connecting plate. A third insertion hole corresponding to the fourth pin is opened on one side of both the third pin and the connecting seat. One end of each of the two fourth pins is connected to one of the first mounting seats through a transmission component. The installation force of the first mounting seat is used to drive the fourth pin to be inserted into the third insertion hole on one side of the third pin, thereby fixing the upper sleeve to the connecting seat.

[0012] Furthermore, the transmission component includes two sets of first sliding seats fixedly mounted on the support beam. A first sliding rod is slidably mounted between each set of first sliding seats. The top end of the first sliding rod passes through the second base plate and abuts against the bottom of the corresponding first mounting seat. A first spring is sleeved on the outer wall of the first sliding rod, located between the two first sliding seats. The two ends of the first spring are respectively fixedly connected to one side of one of the first sliding seats and the outer wall of the first sliding rod. The bottom ends of the two first sliding rods are fixedly mounted on the same fixing plate. Multiple second sliding rods are fixedly mounted on one side of the connecting plate. The outer walls of the multiple second sliding rods are slidably sleeved with the same sliding plate that abuts against the fixing plate. A second spring is sleeved on the outer wall of the second sliding rod. The two ends of the second spring are respectively fixedly connected to the adjacent sides of the connecting plate and the sliding plate. One end of the fourth pin abuts against the sliding plate.

[0013] Furthermore, two rectangular holes are opened on one side of the connecting plate. A second sliding seat is slidably installed in the rectangular holes. A fourth pin is slidably installed in the second sliding seat. A third spring is sleeved on the outer wall of the fourth pin. The two ends of the third spring are respectively fixedly connected to one end of the outer wall of the fourth pin and one side of the second sliding seat, providing buffer space for the moving and lifting of the connecting plate.

[0014] Furthermore, a warning sign is fixed to the top of the crash barrier, and charging stations for charging the flying car are installed on the ramp.

[0015] A construction method for a prefabricated bridge conversion structure for flying car traffic includes the following steps: S1. Fix the connecting seat to the bridge pier, lift the support beam with a crane and connect the connecting plate to one side of the connecting seat; S2. Fix the second base plate to the two support beams, and fix the ramp to the second base plate through multiple first mounting seats; S3. During the process of fixing the first mounting base, the connecting plate and the connecting base can be locked by the two first sliding rods; S4. Open an opening on one side of the crash barrier corresponding to the ramp, then install the sign on the crash barrier, and at the same time, install the charging pile on the ramp.

[0016] The beneficial effects of this invention are as follows: 1. The prefabricated bridge modification structure for flying car traffic disclosed in this invention forms a stable prefabricated bridge structure through the cooperation of multiple bridge piers, bridge bodies, anti-collision walls and jackets. The jacket is fixedly connected to the bridge piers and the first base plate by the first bolt and the second bolt, which not only increases the contact area with the ground, but also improves the stability of the structure. At the same time, the detachable design between the various components makes the entire bridge structure easy to assemble and disassemble, convenient for maintenance and upgrades, and can protect the bridge piers.

[0017] 2. The prefabricated bridge modification structure for flying car traffic disclosed in this invention, through the design of the fixing mechanism, including components such as a second mounting base, a second damper, a third pin, a second insertion hole, a first pin, a first insertion hole, a second pin, a fourth insertion hole, a fifth pin, and a fourth spring, realizes multiple fixing and limiting functions for the jacket, connecting seat, and connecting plate. The cooperation between these components makes the bridge structure more stable and can effectively prevent structural loosening or damage caused by external forces.

[0018] 3. The prefabricated bridge modification structure for flying car traffic disclosed in this invention provides excellent buffering and shock absorption performance for the bridge by setting a first damper and a second damper on one side of the connecting seat, as well as components such as a first sliding rod, a first spring, a second sliding rod, and a second spring connected by a transmission component. These components can effectively absorb and disperse the impact force when the bridge is subjected to external forces, protecting the bridge structure from damage.

[0019] 4. The prefabricated bridge modification structure for flying car passage disclosed in this invention, through the design of components such as screws, limiting rings, first fixing seats, and second nuts, allows the connecting plate to be easily fixed on the first damper. At the same time, the detachable design between each component makes the entire bridge structure easy to maintain and repair, extending its service life. In addition, the limiting plate can also be used to position the ramp during the installation process.

[0020] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a three-dimensional structural diagram of the prefabricated bridge modification structure for flying car traffic according to the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the prefabricated bridge modification structure for flying car traffic according to the present invention from another perspective; Figure 3 This is a schematic diagram of the installation structure of the support beam and the bridge pier in this invention; Figure 4 This is a schematic diagram of the installation structure of the connecting seat and the bridge pier in this invention; Figure 5 This is a schematic diagram of the supporting beam structure in this invention; Figure 6 for Figure 5 Enlarged view of section A in the middle; Figure 7 This is a cross-sectional view of the connecting seat in this invention; Figure 8 This is a schematic diagram of the limiting plate structure in this invention.

[0022] Attached reference numerals: 1. Ground; 2. Pier; 3. Bridge body; 4. Crash barrier; 5. Ramp; 6. Ramp entrance; 7. Sign; 8. Charging pile; 9. Limiting plate; 10. Support beam; 11. Jacket; 12. Connecting seat; 13. First mounting seat; 14. Clamping plate; 15. First bolt; 16. Second bolt; 17. First nut; 18. First base plate; 19. Connecting plate; 20. First insertion hole; 21. First pin; 22. Second insertion hole; 23. Third insertion hole; 24. First damper; 25. Second pin; 26. ... 27. Second mounting base; 28. Second damper; 29. ​​Third pin; 30. First sliding seat; 31. First spring; 32. First fixed seat; 33. Second sliding rod; 34. Sliding plate; 35. Fixed plate; 36. Second spring; 37. Rectangular hole; 38. Second sliding seat; 39. Fourth pin; 40. Third spring; 41. Screw; 42. Second nut; 43. Limiting ring; 44. Fifth pin; 45. Fourth spring; 46. Fourth insertion hole; 47. Second fixed seat; 48. Second base plate. Detailed Implementation

[0023] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0024] like Figure 1 , 2 The prefabricated bridge modification structure shown is for use by flying cars. The basic structure of the bridge is as follows: multiple piers 2 are topped with the same bridge body 3, and anti-collision walls 4 are provided on both sides of the top of the bridge body 3 to enhance the safety of the bridge. The multiple piers 2 securely support the bridge body 3 on the ground 1.

[0025] To protect pier 2, two detachable sleeves 11 are installed on the outer side of pier 2. Each sleeve 11 consists of two clamping plates 14, with pier 2 positioned between them. To secure the clamping plates 14, a first bolt 15 is threaded through one side of one clamping plate 14, connecting it to the other clamping plate 14. Meanwhile, as... Figure 3 As shown, the outer wall of the pier 2 is fitted with two corresponding first base plates 18. The top of the first base plate 18 is fixed with multiple second bolts 16. The top of these second bolts 16 penetrates the lower clamping plate 14, and the outer wall of the bolts is threaded with first nuts 17 that abut against the clamping plate 14. This design not only fixes the clamping plate 14 to the two first base plates 18, but also increases the contact area between the lower clamping plate 14 and the ground 1, thereby improving stability.

[0026] A connecting seat 12 is installed on one side of pier 2, located between two sleeves 11, providing additional protection for pier 2. Two first dampers 24 and one second damper 27 are installed on one side of the connecting seat 12. Figure 7 As shown, each of the piston rods of the two first dampers 24 has a screw 41 fixedly mounted at its top end, and a limiting ring 43 is fixedly sleeved on the outer wall of the screw 41. Next, a first fixing seat 32 is fixedly mounted on one side of the connecting plate 19, and the screw 41 is inserted into the first fixing seat 32, with the limiting ring 43 abutting against the first fixing seat 32. Finally, a second nut 42 is threaded onto the outer wall of the screw 41, with the bottom of the second nut 42 abutting against the top of the first fixing seat 32, thereby fixing the connecting plate 19 onto the two first dampers 24.

[0027] Two support beams 10 are fixedly installed on one side of the connecting plate 19, and the same second base plate 48 is fixedly installed on the two support beams 10. On the top of the second base plate 48, multiple first mounting seats 13 are fixedly connected, and a ramp 5 is fixedly installed on the top of these first mounting seats 13. In order to facilitate the take-off and landing of the aircraft and the temporary parking of accident vehicles, an opening 6 corresponding to the ramp 5 is opened on the outside of one of the crash barriers 4.

[0028] Fixed on one side of the crash barrier 4, such as Figure 8 The two second fixing seats 47 shown are each fixed with a limiting plate 9 on one side to limit the ramp 5 and ensure its stability.

[0029] A fixing mechanism was designed to secure the two clamps 11, the connecting seat 12, and the connecting plate 19 together. For example... Figure 5 As shown, the fixing mechanism includes two second mounting seats 26 fixedly disposed on one side of the connecting plate 19, and a second damper 27 passing through and fixedly disposed on the top of the second mounting seats 26. A third pin 28 is fixedly disposed at the bottom end of the piston rod of the second damper 27. The top of the connecting seat 12 and the top of the upper sleeve 11 are both provided with second insertion holes 22 for insertion into the third pin 28. This design not only realizes the insertion of the upper sleeve 11 into the connecting seat 12, but also provides support for the connecting plate 19.

[0030] like Figure 4 As shown, multiple second pins 25 are fixedly installed on the top of the lower sleeve 11, and the bottom of the connecting seat 12 has fourth insertion holes 46 for inserting into these second pins 25. Meanwhile, as... Figure 7 As shown, two fifth pins 44 are slidably disposed through one side of the connecting seat 12. Two second pins 25 corresponding to the fifth pins 44 have insertion holes on their outer sides for insertion into the fifth pins 44. A fourth spring 45 is sleeved on the outer wall of the fifth pin 44, located inside the connecting seat 12. The two ends of the fourth spring 45 are fixedly connected to the inner wall of one side of the connecting seat 12 and the outer wall of one end of the fifth pin 44, respectively. When the connecting plate 19 is inserted, it will drive the fifth pins 44 into the insertion holes, thereby fixing the lower sleeve 11 to the connecting seat 12.

[0031] like Figure 4 As shown, multiple first pins 21 are fixedly installed at the bottom of the upper sleeve 11, and the top of the connecting seat 12 has first insertion holes 20 for inserting into these first pins 21. In this way, the upper sleeve 11 can also be inserted and fixed into the connecting seat 12. Meanwhile, as... Figure 6As shown, a fourth pin 39 corresponding to the third pin 28 is provided through one side of the connecting plate 19. Both the third pin 28 and the connecting seat 12 have a third insertion hole 23 corresponding to the fourth pin 39 on one side. One end of each of the two fourth pins 39 is connected to one of the first mounting seats 13 via a transmission component. During installation, the installation force of the first mounting seat 13 can be used to drive the fourth pin 39 into the third insertion hole 23 on one side of the third pin 28, thereby fixing the upper sleeve 11, connecting seat 12, and connecting plate 19 together.

[0032] like Figure 5 As shown, the transmission component includes two sets of first sliding seats 29 fixedly mounted on the support beam 10, with a first sliding rod 30 slidably mounted between each set of first sliding seats 29. The top end of the first sliding rod 30 passes through the second base plate 48 and abuts against the bottom of the corresponding first mounting seat 13. This design allows the first sliding rod 30 to move downward when subjected to pressure from the first mounting seat 13. A first spring 31 is fitted onto the outer wall of the first sliding rod 30, located between the two first sliding seats 29. The two ends of the first spring 31 are fixedly connected to one side of one of the first sliding seats 29 and the outer wall of the first sliding rod 30, respectively. Thus, when the first sliding rod 30 moves downward, the first spring 31 is compressed, providing an upward elastic force to the first sliding rod 30.

[0033] A fixing plate 35 is fixedly installed at the bottom end of the two first sliding rods 30, while multiple second sliding rods 33 are fixedly installed on one side of the connecting plate 19. A sliding plate 34 that abuts against the fixing plate 35 is slidably fitted onto the outer wall of these second sliding rods 33. A second spring 36 is fitted onto the outer wall of the second sliding rod 33, and the two ends of the second spring 36 are fixedly connected to the adjacent sides of the connecting plate 19 and the sliding plate 34, respectively. When the sliding plate 34 moves downward, it pushes the fourth pin 39 into the third insertion hole 23 on one side of the third pin 28, thereby fixing the upper clamp 11 to the connecting seat 12.

[0034] In addition, such as Figure 6 As shown, two rectangular holes 37 are formed on one side of the connecting plate 19, and a second sliding seat 38 is slidably disposed within the rectangular holes 37. A fourth pin 39 is slidably disposed within the second sliding seat 38, and a third spring 40 is sleeved on its outer wall. The two ends of the third spring 40 are respectively fixedly connected to one end of the outer wall of the fourth pin 39 and one side of the second sliding seat 38. This design provides a buffer space for the movement and lifting of the connecting plate 19. When the connecting plate 19 is subjected to external force, it can drive the second sliding seat 38 and the fourth pin 39 to slide up and down within the rectangular holes 37, thereby absorbing and mitigating the impact of external force on the connecting plate 19.

[0035] A sign 7 is fixedly installed on top of the crash barrier 4 to indicate the direction of travel for the flying car and precautions. Meanwhile, charging stations 8 are installed on the ramp 5 to meet the charging needs of the flying car.

[0036] When assembling the prefabricated bridge modification structure for the flying car, firstly, two first base plates 18 are clamped on both sides of the pier 2. Then, two sets of clamps 11 are installed on the pier 2, and the second bolts 16 are inserted into the lower clamp 14 and tightened with the first nut 17. Next, the connecting seat 12 is clamped on the pier 2 and positioned between the two clamps 11. The connecting seat 12 is slowly placed on the lower clamp 11, and the first bolt 15 is inserted into the fourth insertion hole 46 at the bottom of the connecting seat 12. After the insertion is completed, the upper clamp 11 is lowered, and the first pin 21 is inserted into the corresponding second insertion hole 22 to fix the connecting seat 12 on the pier 2. Finally, the two clamps 14 are tightened on the pier 2 with the first bolt 15.

[0037] The support beam 10 is lifted by a crane, so that the third pin 28 is inserted into the corresponding second insertion hole 22 and the screw 41 is inserted into the first fixed seat 32. During the insertion process, the connecting plate 19 moves downward, driving the two fifth pins 44 below to move, so that the fifth pins 44 are inserted into the second pins 25, further fixing the connecting seat 12 onto the lower clamp 11 until the connecting plate 19 is lowered into place. At this time, the third insertion hole 23 on the connecting seat 12 corresponds to the fourth pin 39. Then, the second nut 42 is screwed onto the screw 41, so that the bottom of the second nut 42 abuts against the top of the first fixed seat 32.

[0038] Next, the second base plate 48 is fixed to the two support beams 10, and the two second fixed seats 47 are fixed to the crash barrier 4. The ramp 5 is fixed to the second base plate 48 through multiple first mounting seats 13, and the ramp 5 is located between the two limiting plates 9. During the process of fixing the first mounting seats 13, the gravity of the first mounting seats 13 can drive the corresponding two first sliding rods 30 to move. The movement of the first sliding rods 30 can drive the fixed plate 35 to move. The movement of the fixed plate 35 can drive the sliding plate 34 to move. During the movement of the sliding plate 34, the fourth pin 39 can be pushed to move, so that the fourth pin 39 is inserted into the third insertion hole 23 on the third pin 28, and the upper sleeve 11 is fixed to the connecting seat 12.

[0039] Finally, a ramp 6 corresponding to the ramp 5 is opened on one side of the crash barrier 4, and an indicator sign 7 is installed on the crash barrier 4. At the same time, a charging pile 8 is installed on the ramp 5.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A prefabricated bridge modification structure for flying car traffic, characterized in that, Two sleeves (11) are detachably provided on the pier (2) and a connecting seat (12) is provided between the two sleeves (11). Two first dampers (24) and a second damper (27) are provided on the outside of the connecting seat (12). The same connecting plate (19) is fixedly connected to the two first dampers (24) and the second damper (27). A support beam (10) is fixedly provided on the outside of the connecting plate (19). The same second base plate (48) is fixedly provided on the two support beams (10). Multiple first mounting seats (13) are fixedly connected to the top of the second base plate (48). The same ramp (5) is fixedly provided on the top of the multiple first mounting seats (13). A ramp (6) corresponding to the ramp (5) is opened on the outside of the anti-collision wall (4) on the bridge body (3) for aircraft take-off, take-off and landing and temporary parking of accident vehicles. A fixing mechanism is provided on the support beam (10). The fixing mechanism includes two second mounting seats (26) fixed on the side of the connecting plate (19) near the connecting seat (12). A second damper (27) is fixed through the top of the second mounting seat (26). A third pin (28) is fixed at the bottom of the piston rod of the second damper (27). A second insertion hole (22) is provided on the top of the connecting seat (12) and the upper sleeve (11) for insertion with the third pin (28) for insertion of the upper sleeve (11) into the connecting seat (12) and for supporting the connecting plate (19).

2. The prefabricated bridge modification structure for flying car traffic as described in claim 1, characterized in that, The sleeve (11) includes two clamping plates (14), and the pier (2) is located between the two clamping plates (14). A first bolt (15) is provided through one side of one of the clamping plates (14), and the other end of the first bolt (15) is threadedly connected to the other clamping plate (14). Two corresponding first base plates (18) are sleeved on the outer wall of the pier (2). Multiple second bolts (16) are fixed on the top of the first base plates (18). The top of the second bolts (16) passes through the lower clamping plate (14). The outer wall of the second bolts (16) is threaded with a first nut (17) that abuts against the clamping plate (14) to fix the clamping plate (14) on the two first base plates (18) and increase the contact area between the lower clamping plate (14) and the ground (1).

3. The prefabricated bridge modification structure for flying car traffic as described in claim 1, characterized in that, Two first dampers (24) are fixedly mounted on the outside of the connecting seat (12). A screw (41) is fixedly mounted on the top of the piston rod of the first damper (24). A limiting ring (43) is fixedly mounted on the outer wall of the screw (41). A first fixed seat (32) that abuts against the limiting ring (43) is mounted on the outer wall of the screw (41). The first fixed seat (32) is fixedly mounted on the connecting plate (19). A second nut (42) is threaded on the outer wall of the screw (41). The bottom of the second nut (42) abuts against the top of the first fixed seat (32) to fix the connecting plate (19) on the two first dampers (24).

4. The prefabricated bridge modification structure for flying car traffic as described in claim 1, characterized in that, Multiple second pins (25) are fixedly provided on the top of the lower sleeve (11). The bottom of the connecting seat (12) is provided with a fourth insertion hole (46) for inserting into the second pins (25). Two fifth pins (44) are slidably provided through one side of the connecting seat (12). The outer sides of the two second pins (25) corresponding to the fifth pins (44) are provided with insertion holes for inserting into the fifth pins (44). The outer ends of the fifth pins (44) are used in conjunction with the connecting plate (19). During the insertion process, the fifth pin (44) is inserted into the socket. The outer wall of the fifth pin (44) is fitted with a fourth spring (45) located in the connecting seat (12). The two ends of the fourth spring (45) are fixedly connected to the inner wall of one side of the connecting seat (12) and the outer wall of one end of the fifth pin (44), respectively. Multiple first pins (21) are fixedly provided at the bottom of the upper sleeve (11). The top of the connecting seat (12) is provided with a first socket (20) for insertion with the first pins (21).

5. The prefabricated bridge modification structure for flying car traffic as described in claim 4, characterized in that, The upper part of the connecting plate (19) is provided with a fourth pin (39) corresponding to the third pin (28). The third pin (28) and the connecting seat (12) are provided with a third insertion hole (23) corresponding to the fourth pin (39) on one side. One end of each of the two fourth pins (39) is connected to one of the first mounting seats (13) through a transmission component. The installation force of the first mounting seat (13) is used to drive the fourth pin (39) to be inserted into the third insertion hole (23) on one side of the third pin (28), thereby fixing the upper sleeve (11) and the connecting seat (12).

6. The prefabricated bridge modification structure for flying car traffic as described in claim 5, characterized in that, The transmission component includes two sets of first sliding seats (29) fixed on the support beam (10). A first sliding rod (30) is slidably provided between each set of first sliding seats (29). The top end of the first sliding rod (30) passes through the second base plate (48) and abuts against the bottom of the corresponding first mounting seat (13). A first spring (31) is sleeved on the outer wall of the first sliding rod (30) between the two first sliding seats (29). The two ends of the first spring (31) are fixedly connected to one side of one of the first sliding seats (29) and the outer wall of the first sliding rod (30), respectively.

7. The prefabricated bridge modification structure for flying car traffic as described in claim 6, characterized in that, The bottom ends of the two first sliding rods (30) are fixedly provided with the same fixed plate (35). Multiple second sliding rods (33) are fixedly provided on the outside of the connecting plate (19). The outer walls of the multiple second sliding rods (33) are slidably fitted with the same sliding plate (34) that abuts against the fixed plate (35). The outer walls of the second sliding rods (33) are fitted with second springs (36). The two ends of the second springs (36) are fixedly connected to the side of the connecting plate (19) and the sliding plate (34) that are close to each other. One end of the fourth pin (39) abuts against the sliding plate (34).

8. The prefabricated bridge modification structure for flying car traffic as described in claim 7, characterized in that, The upper part of the connecting plate (19) has two rectangular holes (37). A second sliding seat (38) is slidably disposed in the rectangular holes (37). A fourth pin (39) is slidably disposed in the second sliding seat (38). A third spring (40) is sleeved on the outer wall of the fourth pin (39). The two ends of the third spring (40) are fixedly connected to one end of the outer wall of the fourth pin (39) and one side of the second sliding seat (38), respectively, to provide buffer space for the moving and lifting of the connecting plate (19).

9. The prefabricated bridge modification structure for flying car traffic as described in any one of claims 6 to 8, characterized in that, The top of the crash barrier (4) is fixed with a sign (7) for warning purposes, and the ramp (5) is equipped with a charging pile (8) for charging the flying car.

10. A construction method for a prefabricated bridge modification structure for flying car traffic as described in claim 9, characterized in that, Includes the following steps: S1. Fix the connecting seat (12) on the pier (2), and then lift the support beam (10) with a crane and connect the connecting plate (19) to one side of the connecting seat (12); S2. Fix the second base plate (48) on the two support beams (10), and fix the ramp (5) on the second base plate (48) through multiple first mounting seats (13); S3. During the process of fixing the first mounting base (13), the connecting plate (19) and the connecting base (12) are locked by the two first sliding rods (30); S4. Open a ramp (6) on one side of the crash barrier (4) corresponding to the ramp (5), then install the sign (7) on the crash barrier (4), and at the same time, install the charging pile (8) on the ramp (5).

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