Fabricated bridge building butt joint equipment
By using the drive motor and vacuum pump system of the linkage docking mechanism to clean dust, the problem of impurities affecting the docking of prefabricated bridges was solved, enabling immediate docking after cleaning and improving docking quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HENAN UNIV OF URBAN CONSTR
- Filing Date
- 2026-04-01
- Publication Date
- 2026-05-05
AI Technical Summary
During the assembly process of prefabricated bridge construction, dust, debris and other impurities affect the connection quality. The surface of metal components is prone to corrosion in humid environments, and the construction site is dusty, making it difficult to clean up and carry out the assembly work immediately.
The system employs a linkage docking mechanism, including a drive motor, gears, rack and pinion, vacuum pump, and jet nozzle. It uses high-pressure airflow to clean up dust and utilizes drive rods and threaded rods to move the bridge assembly to the docking point, ensuring immediate docking after cleaning.
It effectively prevents dust and impurities from affecting the connection quality, ensures the docking quality, reduces secondary pollution at the construction site, and improves docking efficiency and equipment applicability.
Smart Images

Figure CN121976473A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of prefabricated bridge construction technology, and in particular to a prefabricated bridge construction docking device. Background Technology
[0002] Prefabricated bridge construction, as a modern bridge construction method, achieves high efficiency, standardization, and green development through the factory production of prefabricated components and rapid on-site assembly. Its core functions are reflected in improving project quality, accelerating construction progress, reducing environmental impact, optimizing resource allocation, and promoting technological innovation. Factory prefabrication of components and on-site foundation construction can be carried out simultaneously, making full use of time and space resources and improving construction efficiency. For example, while the bridge foundation is being constructed, the factory can simultaneously prefabricate components such as piers and beams. Once the foundation is completed, the components are also largely prefabricated and can be directly installed, accelerating the overall project progress. Prefabricated bridge construction is fast, enabling the completion of bridge construction or maintenance tasks in a shorter time, reducing traffic disruption. Compared with traditional construction methods, prefabricated bridge construction has less impact on traffic, better ensuring smooth traffic flow.
[0003] In existing technologies, during the docking process of prefabricated bridge construction, dust, debris, and other impurities are easily present at the docking point, which may significantly affect the connection quality. Dust on the surface of metal components, such as cement and salt, can form an electrolyte solution in a humid environment, accelerating corrosion and shortening the service life. Moreover, the construction site generates a lot of dust, and even after cleaning, secondary pollution may occur quickly, making it difficult to carry out docking operations immediately after cleaning. Therefore, a docking device for prefabricated bridge construction is proposed. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the presence of dust, debris, and other impurities at the joint during the assembly process of prefabricated bridge construction, which can significantly affect the connection quality; the formation of electrolyte solutions on the surface of metal components, such as cement and salt, in humid environments, which accelerates corrosion and shortens the service life; and the large amount of dust at construction sites, which can quickly cause secondary pollution even after cleaning, making it difficult to carry out assembly operations immediately after cleaning. Therefore, this invention proposes an assembly docking device for prefabricated bridge construction.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A prefabricated bridge construction docking device includes a docking base, a linkage docking mechanism above the docking base, a drive motor above the docking base, a drive rod at the output end of the drive motor, a gear fixedly connected to the side of the drive rod away from the drive motor, a rack plate meshing with the side of the gear, a base plate fixedly connected above the rack plate, a vacuum pump above the base plate, a jet nozzle for dust removal on the side of the vacuum pump, a drive belt drivingly connected to the side of the drive rod near the docking base, a threaded rod drivingly connected to the side of the drive belt, a movable plate threadedly connected to the side of the threaded rod away from the drive belt, a push plate fixedly connected above the movable plate, and a fixing plate for fixing the prefabricated bridge on the side of the push plate.
[0006] The fixed plate has two symmetrical sets on both sides of the push plate.
[0007] The above technical solution further includes: The docking base is fixedly connected to the drive motor, the drive rod is rotatably connected to the docking base, and a docking bottom plate is fixedly connected above the docking base.
[0008] The bottom plate has a long groove on the side near the threaded rod, the long groove is rotatably connected to the threaded rod, and the long groove is slidably connected to the moving plate.
[0009] A support plate is fixedly connected to the docking base near the lower part of the gear.
[0010] The support plate has a first sliding groove on the side near the rack plate, and the first sliding groove is slidably connected to the rack plate.
[0011] A support rod is fixedly connected to the bottom of the substrate, and a second sliding groove is provided on the side of the support plate near the support rod, and the second sliding groove is slidably connected to the support rod.
[0012] The second slide and the support rod are symmetrically arranged in two identical sets on both sides of the support plate.
[0013] The push plate has a third sliding groove on the side near the fixed plate, and the fixed plate and the third sliding groove are slidably connected.
[0014] The push plate is threadedly connected to a threaded rotating rod on the side near the third slide groove, and the threaded rotating rod is rotatably connected to the push plate.
[0015] The side of the fixed plate is provided with an elastic damping plate, which is made of soft and elastic material.
[0016] The elastic damping plate is provided on the same set on the side of each set of fixed plates. When installing the prefabricated bridge components, it can reduce the vibration generated during the installation process, prevent excessive vibration from damaging the prefabricated bridge components, and protect the integrity of the components.
[0017] A hydraulic cylinder is installed below the docking base. A base is fixedly connected to the side of the hydraulic cylinder away from the docking base. A telescopic support rod is fixedly connected above the base. The telescopic support rod is fixedly connected to the docking base.
[0018] The present invention has the following beneficial effects: 1. In this invention, through the linkage docking mechanism, when the drive motor drives the drive rod to rotate, on the one hand, the gear drives the rack plate to move, thereby lowering the base plate, and at the same time, the jet nozzle is turned on to use high-pressure airflow to clean the dust at the docking point; on the other hand, the drive rod drives the threaded rod to rotate through the transmission belt, causing the moving plate to drive the push plate and the fixed plate to move, moving the prefabricated bridge component to the docking point. During this process, the vacuum pump and jet nozzle descend with the base plate and stop operating when the component reaches the docking point, realizing immediate docking after dust cleaning, avoiding secondary pollution caused by large dust at the construction site, effectively preventing dust, debris and other impurities from affecting the connection quality, and ensuring the docking quality of the prefabricated bridge.
[0019] 2. In this invention, the operator can move the fixed plate in the third sliding groove by rotating the threaded rod, thereby adjusting the position of the two sets of fixed plates. This design allows the device to be flexibly adjusted according to prefabricated bridge components of different sizes, expanding the scope of use of the equipment and improving its applicability.
[0020] 3. In this invention, the hydraulic cylinder can control the movement of the docking base and its components above it to adjust the position during docking, ensuring the accuracy of the docking of the prefabricated bridge components. The long groove is rotatably connected to the threaded rod and slidably connected to the moving plate. A support plate is set near the gear below the docking base. When the docking base moves, it drives the telescopic support rod to extend and retract. Multiple sets of telescopic support rods ensure the stability of movement between the docking base and the base. These structural designs ensure the stability of the equipment during operation from multiple aspects, providing a reliable guarantee for accurate docking. Attached Figure Description
[0021] Figure 1 This is a structural schematic diagram of a prefabricated bridge construction docking device proposed in this invention; Figure 2 This is a schematic diagram of the external structure in this invention; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B; Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point C.
[0022] In the diagram: 1. Docking base; 2. Drive motor; 3. Drive rod; 4. Gear; 5. Rack plate; 6. Base plate; 7. Vacuum pump; 8. Jet nozzle; 9. Transmission belt; 10. Threaded rod; 11. Moving plate; 12. Push plate; 13. Fixed plate; 14. Docking base plate; 15. Long groove; 16. Support plate; 17. First slide groove; 18. Second slide groove; 19. Support rod; 20. Third slide groove; 21. Threaded rotating rod; 22. Elastic damping plate; 23. Hydraulic cylinder; 24. Base; 25. Telescopic support rod. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-6 As shown, the present invention is a docking device for prefabricated bridge construction, including a docking base 1, a linkage docking mechanism above the docking base 1, a drive motor 2 above the docking base 1, a drive rod 3 at the output end of the drive motor 2, a gear 4 fixedly connected to the side of the drive rod 3 away from the drive motor 2, a rack plate 5 meshing with the side of the gear 4, a base plate 6 fixedly connected above the rack plate 5, a vacuum pump 7 above the base plate 6, a jet nozzle 8 for dust removal on the side of the vacuum pump 7, a transmission belt 9 drivingly connected to the side of the drive rod 3 near the docking base 1, a threaded rod 10 drivingly connected to the side of the transmission belt 9, a moving plate 11 threadedly connected to the side of the threaded rod 10 away from the transmission belt 9, a push plate 12 fixedly connected above the moving plate 11, and a fixing plate 13 for fixing the prefabricated bridge on the side of the push plate 12.
[0025] The docking base 1 is fixedly connected to the drive motor 2, the drive rod 3 is rotatably connected to the docking base 1, and the docking base plate 14 is fixedly connected above the docking base 1.
[0026] The bottom plate 14 has a long groove 15 on the side near the threaded rod 10. The long groove 15 is rotatably connected to the threaded rod 10, and the long groove 15 is slidably connected to the movable plate 11.
[0027] In this embodiment, the device is moved to the docking point, and the linkage docking mechanism set above the docking base 1 is activated. The drive motor 2 fixedly installed above the docking base 1 starts to run. When the drive motor 2 runs, it starts to control the drive rod 3 set at its output end to rotate. When the drive rod 3 rotates, it drives the gear 4 fixedly connected to its other end to rotate. When the gear 4 rotates, it drives the rack plate 5 meshing with its side to move. When the rack plate 5 moves, it drives the base plate 6 set on its top to move. Before the base plate 6 moves, the jet head 8 set above the base plate 6 is turned on in advance, so that the jet head 8 can spray high-pressure airflow through multiple sets of transmission belts 9 set on its side, which directly acts on the docking point to remove dust and debris, thus cleaning the dust at the docking point. At the same time, the vacuum pump 7 and the jet head 8 descend as the base plate 6 descends. When the drive rod 3 rotates, it drives the transmission belt 9 connected to its side to rotate. When the transmission belt 9 rotates, it drives the transmission belt 9 connected to its other side to rotate. The threaded rod 10 of the dynamic connection rotates. The threaded rod 10 is set inside the long groove 15 opened inside the docking base plate 14 and is rotatably connected to the inner wall of the long groove 15. The threaded rod 10 begins to pass through the inside of the moving plate 11 and rotates on the inner wall of the long groove 15. Since the threaded rod 10 and the moving plate 11 are threadedly connected and the moving plate 11 and the long groove 15 are slidably connected, the rotation of the threaded rod 10 can drive the moving plate 11 to slide on the inner wall of the long groove 15. When the moving plate 11 slides, it drives the push plate 12, which is fixedly connected to it above, to start moving. Two sets of symmetrical fixed plates 13 are set on the side of the push plate 12. The two sets of fixed plates 13 fix a prefabricated bridge component between them. When the push plate 12 moves, it will drive the prefabricated bridge component to gradually move to the bridge docking point through the fixed plates 13. At this time, the vacuum pump 7 and the jet head 8 have gradually descended to the appropriate position and stopped running. This allows the prefabricated bridge to be docked immediately after dust removal, improving work efficiency and preventing dust pollution from affecting the docking strength.
[0028] In one embodiment, for the aforementioned docking base 1, a support plate 16 is fixedly connected to the lower part of the docking base 1 near the gear 4.
[0029] The support plate 16 has a first groove 17 on the side near the rack plate 5, and the first groove 17 is slidably connected to the rack plate 5.
[0030] A support rod 19 is fixedly connected to the bottom of the substrate 6. A second sliding groove 18 is provided on the side of the support plate 16 near the support rod 19. The second sliding groove 18 is slidably connected to the support rod 19.
[0031] In this embodiment, a support plate 16 is provided below the docking base 1. When the rack plate 5 descends, the other end of the rack plate 5 is slidably connected to the first groove 17 opened inside the support plate 16, so that the rack plate 5 will gradually slide on the inner wall of the first groove 17. When the substrate 6 descends, the substrate 6 will drive the support rod 19 fixedly connected to it to descend. The other end of the support rod 19 is slidably connected to the inner wall of the second groove 18 opened inside the support plate 16, so that the support rod 19 slides on the inner wall of the second groove 18, ensuring the stability of the rack plate 5, substrate 6, vacuum pump 7 and jet head 8 when descending.
[0032] In one embodiment, the push plate 12 has a third groove 20 on the side near the fixed plate 13, and the fixed plate 13 is slidably connected to the third groove 20.
[0033] A threaded rotating rod 21 is threadedly connected to the side of the push plate 12 near the third slide groove 20, and the threaded rotating rod 21 is rotatably connected to the push plate 12.
[0034] In this embodiment, a third slide groove 20 is provided inside the push plate 12. The two sets of fixed plates 13 are slidably connected to the inner wall of the third slide groove 20. The operator can rotate the threaded rod 21. The other end of the threaded rod 21 is threadedly connected to the push plate 12. The rotation of the threaded rod 21 will move inside the third slide groove 20, thereby driving the fixed plates 13 to move. The position of the two sets of fixed plates 13 can be adjusted, so that the device can be used for docking of prefabricated bridge components of different sizes.
[0035] In one embodiment, for the aforementioned fixed plate 13, an elastic damping plate 22 is provided on the side of the fixed plate 13. The elastic damping plate 22 is made of soft and elastic material.
[0036] In this embodiment, a set of elastic damping plates 22 are provided on the side of each set of fixed plates 13. The elastic damping plates 22 are made of soft and elastic material. When the prefabricated bridge components are installed, the two sets of elastic damping plates 22 will not be loosened and fixed, which can reduce the vibration generated during installation and prevent excessive vibration from damaging the prefabricated bridge components.
[0037] In one embodiment, for the docking base 1, a hydraulic cylinder 23 is provided below the docking base 1, and a base 24 is fixedly connected to the side of the hydraulic cylinder 23 away from the docking base 1. A telescopic support rod 25 is fixedly connected above the base 24, and the telescopic support rod 25 is fixedly connected to the docking base 1.
[0038] In this embodiment, a hydraulic cylinder 23 is provided below the docking base 1. The hydraulic cylinder 23 is fixedly installed above the base 24. After the hydraulic cylinder 23 is started, it can control the docking base 1 and other components above it to move. The position can be adjusted during docking to ensure the accuracy of docking of the prefabricated bridge components. When the docking base 1 moves, the docking base 1 will drive the telescopic support rod 25 to extend and retract. Multiple sets of telescopic support rods 25 are provided between the docking base 1 and the base 24 to ensure the stability of the docking base 1 and other components during movement.
[0039] 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 variations 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 prefabricated bridge construction docking device, comprising a docking base (1), characterized in that, A linkage docking mechanism is provided above the docking base (1). The linkage docking mechanism includes a drive motor (2) provided above the docking base (1). A drive rod (3) is provided at the output end of the drive motor (2). A gear (4) is fixedly connected to the side of the drive rod (3) away from the drive motor (2). A rack plate (5) is meshed on the side of the gear (4). A base plate (6) is fixedly connected above the rack plate (5). A vacuum pump (7) is provided above the base plate (6). An air jet head (8) for cleaning dust is provided on the side of the vacuum pump (7). A transmission belt (9) is driven to the side of the drive rod (3) near the docking base (1). A threaded rod (10) is driven to the side of the transmission belt (9). A moving plate (11) is threaded to the side of the threaded rod (10) away from the transmission belt (9). A push plate (12) is fixedly connected above the moving plate (11). A fixing plate (13) for fixing the prefabricated bridge is provided on the side of the push plate (12).
2. The prefabricated bridge construction docking equipment according to claim 1, characterized in that, The docking base (1) is fixedly connected to the drive motor (2), the drive rod (3) is rotatably connected to the docking base (1), and a docking bottom plate (14) is fixedly connected above the docking base (1).
3. The prefabricated bridge construction docking equipment according to claim 2, characterized in that, The bottom plate (14) has a long groove (15) on the side near the threaded rod (10). The long groove (15) is rotatably connected to the threaded rod (10), and the long groove (15) is slidably connected to the moving plate (11).
4. The prefabricated bridge construction docking equipment according to claim 1, characterized in that, The docking base (1) is fixedly connected to a support plate (16) near the lower part of the gear (4).
5. The prefabricated bridge construction docking equipment according to claim 4, characterized in that, The support plate (16) has a first groove (17) on the side near the rack plate (5), and the first groove (17) is slidably connected to the rack plate (5).
6. The prefabricated bridge construction docking equipment according to claim 4, characterized in that, A support rod (19) is fixedly connected below the substrate (6). A second groove (18) is provided on the side of the support plate (16) near the support rod (19). The second groove (18) is slidably connected to the support rod (19).
7. The prefabricated bridge construction docking equipment according to claim 1, characterized in that, The push plate (12) has a third sliding groove (20) on the side near the fixed plate (13), and the fixed plate (13) and the third sliding groove (20) are slidably connected.
8. The prefabricated bridge construction docking equipment according to claim 7, characterized in that, The push plate (12) is threadedly connected to a threaded rotating rod (21) on the side near the third slide groove (20), and the threaded rotating rod (21) is rotatably connected to the push plate (12).
9. The prefabricated bridge construction docking equipment according to claim 1, characterized in that, The side of the fixed plate (13) is provided with an elastic damping plate (22), which is made of soft and elastic material.
10. A prefabricated bridge construction docking device according to claim 1, characterized in that, A hydraulic cylinder (23) is provided below the docking base (1). A base (24) is fixedly connected to the side of the hydraulic cylinder (23) away from the docking base (1). A telescopic support rod (25) is fixedly connected above the base (24). The telescopic support rod (25) is fixedly connected to the docking base (1).