Bridge support pre-embedded anchoring and reinforcing device
By combining the main support steel plate and the secondary connecting steel plate and using precise centering and positioning, the problem of insufficient stability and positioning accuracy of bridge bearing anchorage devices under complex working conditions is solved, achieving efficient stability and long-term reliability of bridge bearings and reducing operation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-21
- Publication Date
- 2026-04-10
AI Technical Summary
Existing bridge bearing anchorage devices lack stability and positioning accuracy under long spans, heavy loads, and complex working conditions, resulting in weak constraints on horizontal shear displacement and torsional displacement. This makes them prone to installation alignment deviations and foundation loosening after long-term service, posing potential structural safety hazards.
The system adopts a combined structure of main support steel plate and auxiliary connecting steel plate. Through positioning and guiding structure, lateral buffer stabilization mechanism and damping buffer component, combined with "four-point" pre-embedded anchor bar and precise centering positioning of rotary adjustment plate, it realizes multi-point embedding and precise locking, enhances horizontal displacement control, and realizes efficient load transfer and buffering through the combination of sliding adjustment block and linkage transmission rod.
It significantly improves the long-term reliability and service life of bridge bearings, reduces operation and maintenance costs, ensures structural safety and load adaptability, and solves the problems of stability and positioning accuracy of traditional devices under complex working conditions.
Smart Images
Figure CN121827248A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bridge construction technology, specifically to a bridge bearing pre-embedded anchorage reinforcement device. Background Technology
[0002] As the core load-bearing component connecting the superstructure and substructure of a bridge, the anchorage stability of bridge bearings directly determines the overall load-bearing capacity and service safety of the bridge. Pre-embedded anchorage reinforcement devices for bridge bearings are crucial supporting structures for ensuring the firmness of bearing installation and limiting abnormal displacement. In the field of bridge engineering, existing bearing anchorage devices generally adopt a foundation structure of "pre-embedded reinforcement bars + supporting steel plates." By embedding the pre-embedded reinforcement bars into the concrete of the bridge substructure, combined with the rigid connection between the supporting steel plate and the bearing, the anchorage and positioning of the bearing are achieved. This type of device can meet the foundation anchorage requirements under normal load conditions and has been widely used in small and medium-span bridges.
[0003] However, as bridge construction moves towards longer spans and heavier loads, and with the long-term effects of complex conditions such as vehicle reciprocating loads, temperature cycling deformation, and seismic impacts in the service environment, existing anchoring devices have gradually revealed core defects in the stability and positioning accuracy of the fixing system. Specifically, existing devices mostly use a single, uniformly distributed pre-embedded reinforcement for fixing, which can only limit vertical displacement through the embedding effect between the pre-embedded reinforcement and the concrete, and has weak constraint capabilities on horizontal shear displacement and torsional displacement. At the same time, the centering and positioning of the supporting steel plate and the pre-embedded foundation rely on on-site visual inspection by construction personnel or simple tooling assistance, lacking precise mechanical centering and locking structures. This makes it easy for uneven stress to occur due to installation centering deviations, and cracks are prone to appear at the interface between the pre-embedded reinforcement and the concrete after long-term service, which in turn leads to loosening of the anchoring foundation. For example, in bridge projects with frequent heavy vehicle traffic, existing anchoring devices often experience misalignment of the supporting steel plates due to insufficient horizontal shear resistance, requiring regular reinforcement and maintenance. This not only increases operation and maintenance costs but also poses structural safety hazards. In earthquake-prone areas, the stress concentration caused by centering deviation is more likely to cause the entire anchoring device to fail, threatening the safety of the bridge structure. Summary of the Invention
[0004] The purpose of this invention is to provide a bridge bearing pre-embedded anchorage reinforcement device to solve the problems of insufficient stability and positioning accuracy of existing bearing anchorage device fixing systems, namely, the weak constraint of single uniformly distributed pre-embedded bars on horizontal shear displacement and torsional displacement, the lack of precise mechanical alignment and locking structure which easily leads to installation alignment deviation and foundation loosening after long-term service.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a bridge bearing pre-embedded anchoring reinforcement device, comprising a main support steel plate, a secondary connecting steel plate distributed below the main support steel plate, a pre-embedded anchor bar penetrating at the bottom corner of the secondary connecting steel plate, and an I-shaped pre-embedded steel component welded to the top center of the main support steel plate. A positioning and guiding structure is provided between the main support steel plate and the secondary connecting steel plate. A transverse buffer and stabilizing mechanism is provided inside the main support steel plate. The transverse buffer and stabilizing mechanism is connected to a damping buffer assembly. A positioning insert plate is fixed on one side of the bottom of the main support steel plate, and a guide slot adapted to the positioning insert plate is opened on one side of the top of the secondary connecting steel plate. The lateral buffer stabilization mechanism includes a guide structure opened on the inner side of one end of the main support steel plate, a lateral stabilizing link penetrating the inner cavity of one end of the main support steel plate, a buffer spring sleeved on the outer ring surface of one end of the lateral stabilizing link, a sliding adjustment block connected to one end of the buffer spring, and a guide limit block fixedly connected to one end surface of the sliding adjustment block. The damping buffer assembly includes a linkage transmission rod rotatably connected to the bottom of the sliding adjustment block, and the other end of the linkage transmission rod is connected to a hinged linkage base. A hydraulic damping buffer is fixed on the side wall of the hinged linkage base.
[0006] Preferably, the guide structure includes a main sliding track, a first guide groove, a secondary sliding track, and a second guide groove; the main sliding track is located at the top of one end of the main support steel plate, and one end of the main sliding track is connected to the first guide groove; the secondary sliding track is located at the top of one end of the secondary connecting steel plate, and one end of the secondary sliding track is connected to the second guide groove; the guide limiting block can slide along the main sliding track and the first guide groove.
[0007] Preferably, a telescopic compensation groove is provided on the inner side of one end of the main support steel plate, and an anchoring locking hole is connected to one end of the telescopic compensation groove; a flow guide plate is provided on the inner side of the telescopic compensation groove, and a linear motion guide rail is provided on the side wall of the flow guide plate.
[0008] Preferably, an extension support wing plate is provided on the inner side of the telescopic compensation groove, and a guide positioning boss adapted to the linear motion guide rail is fixed on the inner side wall of the extension support wing plate; a first return spring is provided on the inner side of the end of the extension support wing plate away from the guide positioning boss, and a self-locking fastening rod is connected to the other end of the first return spring, and an auxiliary sliding liner is sleeved on the outer ring surface of one end of the self-locking fastening rod.
[0009] Preferably, a rotating adjusting disc is rotatably connected to one side of the top end of the secondary connecting steel plate, and a conical centering positioning component is fixed on the surface of the rotating adjusting disc.
[0010] Preferably, the tapered centering and positioning component is adapted to the positioning hole at the bottom of the main support steel plate.
[0011] Preferably, the inner cavity of the rotary adjustment disc is provided with a second return spring, and the other end of the second return spring is connected to a positioning constraint pin; a sliding compensation plate is sleeved on the outer ring surface of one end of the positioning constraint pin, and a toggle rod is fixed on the outer surface of the sliding compensation plate.
[0012] Preferably, the two ends of the linkage transmission rod are rotatably connected to the sliding adjustment block and the hinged linkage base, respectively; the linkage transmission rods are symmetrically distributed along the transverse center line of the hinged linkage base, and the symmetrically arranged linkage transmission rods are arranged in a figure-eight shape.
[0013] Preferably, the self-locking fastening rod is elastically slidably connected to the extension support wing plate through the first return spring; the outer diameter of the self-locking fastening rod is adapted to the inner diameter of the anchoring locking hole, and the end of the self-locking fastening rod is provided with a guide chamfer.
[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention forms a "four-point" stable support by pre-embedded anchor bars at the bottom corner of the secondary connecting steel plate. Compared with the existing uniformly distributed pre-embedded bars, the corner layout can create a more stable load-bearing support surface. The embedding effect with the concrete foundation can significantly optimize the horizontal displacement control effect. On this basis, the conical centering positioning component is synchronously inserted into the positioning hole of the main support steel plate and the ground by rotating the adjustment disc. With the elastic locking structure of the positioning constraint pin, the centering deviation problem that is easy to occur in the traditional positioning method is completely solved, so that the torsional displacement of the device can be accurately controlled, and the long-term reliability of the foundation anchoring is significantly improved.
[0015] This invention achieves efficient conversion of longitudinal force to lateral force through an innovative combination of sliding adjustment blocks and figure-eight linkage transmission rods, enabling the longitudinal impact load of the bridge to be evenly transmitted to the buffer components on both sides. The first stage uses buffer springs to quickly absorb instantaneous impact energy, effectively weakening the load peak and preventing the subsequent damping components from bearing excessive instantaneous force. The second stage uses the viscous friction of the hydraulic damping buffer to convert the remaining kinetic energy into heat energy for slow dissipation. Compared with a single buffer structure, the overall energy consumption efficiency is significantly improved. At the same time, multiple sets of guiding structures such as the main sliding track and guide limit blocks ensure no deviation during the force transmission process. The distributed layout of multiple sets of sliding adjustment blocks further improves the load distribution capability, making the device adaptable to various load scenarios and significantly extending its service life.
[0016] This invention achieves continuous adjustment of the support range through the precise cooperation between the guide positioning boss and the linear motion guide rail, fully covering the range of common construction deviations. During the adjustment process, the self-locking fastening rod achieves elastic automatic locking through the first reset spring. Combined with the end guide chamfer design, positioning and fixing can be completed without professional tools, significantly improving operational efficiency. In addition, the guide and protective plate in the telescopic compensation groove can effectively prevent rainwater and debris from entering the adjustment mechanism, solving the problem of easy corrosion and jamming in traditional telescopic structures, greatly extending the maintenance cycle of the adjustment mechanism and significantly reducing the later operation and maintenance costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the main supporting steel plate structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the main supporting steel plate of the present invention; Figure 4 This is a schematic diagram of the secondary connecting steel plate structure of the present invention; Figure 5 This is a schematic diagram of the hinged linkage base structure of the present invention; Figure 6 This is a schematic diagram of the extended support wing plate structure of the present invention; Figure 7 This is a schematic diagram of the rotating adjustment disk structure of the present invention.
[0018] In the diagram: 1. Main support steel plate; 2. Secondary connecting steel plate; 3. Embedded anchor bar; 4. I-shaped embedded steel component; 5. Positioning insert plate; 6. Guide slot; 7. Main sliding rail; 8. First guide groove; 9. Secondary sliding rail; 10. Second guide groove; 11. Lateral stabilizing link; 12. Buffer spring; 13. Sliding adjusting block; 14. Guide limit block; 15. Linkage transmission rod; 16. Hinge linkage base; 17. Hydraulic damping buffer; 18. Telescopic compensation groove; 19. Anchoring locking hole; 20. Flow guide plate; 21. Linear motion guide rail; 22. Extension support wing plate; 23. Guide positioning boss; 24. First return spring; 25. Self-locking fastening rod; 26. Auxiliary sliding liner; 27. Rotary adjusting disc; 28. Conical centering positioning component; 29. Second return spring; 30. Positioning constraint pin; 31. Sliding compensation plate; 32. Actuating rod. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-7 As shown, the present invention provides a technical solution: a bridge bearing pre-embedded anchoring reinforcement device, including a main support steel plate 1, a secondary connecting steel plate 2 distributed below the main support steel plate 1, a pre-embedded anchoring bar 3 penetrating at the bottom corner of the secondary connecting steel plate 2, and an I-shaped pre-embedded steel component 4 welded to the top center of the main support steel plate 1; the positioning and guiding structure provided between the main support steel plate 1 and the secondary connecting steel plate 2 is composed of a positioning insert plate 5 and a guide slot 6, and the transverse buffer stabilization mechanism and the damping buffer assembly configured in the main support steel plate 1 are a linkage structure; A positioning insert 5 is fixedly provided on one side of the bottom of the main support steel plate 1. A guide slot 6 adapted to the positioning insert 5 is provided on one side of the top of the secondary connecting steel plate 2. A guide structure is provided on the inner side of one end of the main support steel plate 1. The guide structure includes a main sliding rail 7, a first guide groove 8, a secondary sliding rail 9, and a second guide groove 10. The main sliding rail 7 is located at the top of one end of the main support steel plate 1, and one end of the main sliding rail 7 is connected to the first guide groove 8. The secondary sliding rail 9 is located at the top end of the secondary connecting steel plate 2, and one end of the secondary sliding rail 9 is connected to the first guide groove 8. The second guide groove 10 is connected. A transverse stabilizing link 11 passes through the inner cavity of one end of the main support steel plate 1. A buffer spring 12 is sleeved on the outer ring surface of one end of the transverse stabilizing link 11. A sliding adjustment block 13 is connected to one end of the buffer spring 12. A guide limit block 14 is fixed on the surface of one end of the sliding adjustment block 13. A linkage transmission rod 15 is rotatably connected to the bottom of the sliding adjustment block 13. A hinged linkage base 16 is connected to the other end of the linkage transmission rod 15. A hydraulic damping buffer 17 is fixed on the side wall of the hinged linkage base 16. In this embodiment, during use, the auxiliary connecting steel plate 2 is pre-positioned so that multiple pre-embedded anchor bars 3 fixed at its bottom corners come into contact with the ground, and the pre-embedded anchor bars 3 are inserted into the ground surface. Subsequently, during use, as the I-shaped pre-embedded steel component 4 moves longitudinally under force, the main support steel plate 1 causes the positioning inserts 5 symmetrically arranged on both sides of its bottom to slide longitudinally along the guide slots 6, thereby providing guidance for the movement of the main support steel plate 1. As the main support steel plate 1 moves longitudinally, the sliding adjustment block 13 slides inside the sliding track under the force, and the sliding guide limit block 14 of the sliding adjustment block 13 slides along the first guide groove 8 and the second guide groove 10 respectively, thereby improving the stability of the sliding adjustment block 13 during movement. The sliding adjustment block 13 is rotatably connected to a linkage transmission rod 15 at its bottom, and the other end of the linkage transmission rod 15 is rotatably connected to the hinged linkage base 16. The linkage transmission rod 15 is symmetrically distributed along the transverse center line of the hinged linkage base 16 and arranged in a figure-eight shape. As the sliding adjustment block 13 slides laterally, it pushes the linkage transmission rod 15. At this time, the linkage transmission rod 15 moves laterally and pushes the hinged linkage base 16, causing the hinged linkage bases 16 on both sides to move towards each other. Under the action of the movement of the hinged linkage base 16, the deformation of the hydraulic damping buffer 17 can be easily realized. Then, combined with the reverse force generated by the deformation of the hydraulic damping buffer 17 and multiple buffer springs 12, the purpose of buffer protection can be achieved. It is worth noting that there are multiple sliding adjustment blocks 13 and guide limit blocks 14, and the multiple sliding adjustment blocks 13 and guide limit blocks 14 are respectively engaged with the inner side of the main sliding track 7, the secondary sliding track 9, the first guide groove 8, and the second guide groove 10, using sliding connection to improve the stability of the sliding adjustment block 13 during movement.
[0021] In this invention, a telescopic compensation groove 18 is provided on the inner side of one end of the main support steel plate 1, and an anchoring locking hole 19 is connected to one end of the telescopic compensation groove 18. A flow guide plate 20 is provided on the inner side of the telescopic compensation groove 18, and a linear motion guide rail 21 is provided on the side wall of the flow guide plate 20. An extension support wing plate 22 is provided on the inner side of the telescopic compensation groove 18, and a guide positioning boss 23 adapted to the linear motion guide rail 21 is fixed on the inner side wall of the extension support wing plate 22. A first return spring 24 is provided on the inner side of the end of the extension support wing plate 22 away from the guide positioning boss 23, and a self-locking fastening rod 25 is connected to the other end of the first return spring 24. An auxiliary sliding liner 26 for improving the stability of the movement of the self-locking fastening rod 25 is sleeved on the outer ring surface of one end of the self-locking fastening rod 25. In this embodiment, when the position adjustment of the two side extension support wing plates 22 is required, the self-locking fastening rod 25 is pushed in advance. The self-locking fastening rod 25 forms an elastic sliding connection with the extension support wing plate 22 through the first return spring 24, and its end is provided with a guide chamfer. At this time, under the action of force, the self-locking fastening rod 25 disengages from the inside of the anchoring locking hole 19 and retracts to the inside of the extension support wing plate 22. As the self-locking fastening rod 25 retracts, it will drive the auxiliary sliding liner 26 to move accordingly. At the same time, when the self-locking fastening rod 25 retracts, it will cause the first return spring 24 to move. The positioning spring 24 deforms and generates a reverse force. When the subsequent extended support wing plate 22 slides to the appropriate position along the linear motion guide rail 21 through the guide positioning bosses 23 symmetrically arranged on its inner wall, the reverse force generated by the deformation of the first return spring 24 will push the self-locking fastening rod 25 in the opposite direction. This facilitates the subsequent re-input of one end of the self-locking fastening rod 25 into another anchoring locking hole 19 to achieve the positioning of the extended support wing plate 22. The outer diameter of the self-locking fastening rod 25 is compatible with the inner diameter of the anchoring locking hole 19.
[0022] In this invention, a rotating adjustment disk 27 is rotatably connected to one side of the top of the auxiliary connecting steel plate 2, and a conical centering positioning member 28 adapted to the positioning hole at the bottom of the main supporting steel plate 1 is fixed on the surface of the rotating adjustment disk 27. A second return spring 29 is provided in the inner cavity of the rotating adjustment disk 27, and a positioning constraint pin 30 is connected to the other end of the second return spring 29. A sliding compensation plate 31 is sleeved on the outer ring surface of one end of the positioning constraint pin 30, and a toggle rod 32 is fixed on the outer surface of the sliding compensation plate 31. In this embodiment, as the secondary connecting steel plate 2 comes into contact with the ground, the actuating rod 32 is activated. With the lateral movement of the actuating rod 32, the positioning constraint pin 30 will also move laterally. At this time, one end of the positioning constraint pin 30 will disengage from the hole in the inner wall of the secondary connecting steel plate 2 and retract to the inner side of the rotating adjustment disk 27. When the positioning constraint pin 30 is completely retracted to the inner side of the rotating adjustment disk 27, the rotating adjustment disk 27 is rotated, causing the conical centering positioning member 28 to move accordingly. This allows the conical end of the conical centering positioning member 28 to be simultaneously inserted into the positioning hole at the bottom of the main supporting steel plate 1 and into the ground, achieving dual positioning. The combination of multiple conical centering positioning members 28 symmetrically arranged on both sides facilitates the subsequent improvement of the positioning effect of the secondary connecting steel plate 2. After the conical centering positioning member 28 is inserted, the reverse force generated by the deformation of the second return spring 29 will push the positioning constraint pin 30 in the reverse direction, thus facilitating the subsequent re-insertion of one end of the positioning constraint pin 30 into another hole.
[0023] In this invention, the two ends of the linkage transmission rod 15 are respectively connected to the sliding adjustment block 13 and the hinged linkage base 16, and the linkage transmission rod 15 is symmetrically distributed along the transverse center line of the hinged linkage base 16 and arranged in a figure-eight shape. In this embodiment, as the sliding adjustment block 13 slides laterally, the sliding adjustment block 13 will push the linkage transmission rod 15 rotatably connected to its bottom, thereby facilitating the subsequent use of the movement of the linkage transmission rod 15 to push the hinged linkage base 16, thereby triggering the buffering effect of the hydraulic damping buffer 17.
[0024] In this invention, the self-locking fastening rod 25 is elastically slidably connected to the extended support wing plate 22 through the first return spring 24, and the outer diameter of the self-locking fastening rod 25 is adapted to the inner diameter of the anchoring locking hole 19. The guide chamfer at its end can reduce the resistance when inserted into the anchoring locking hole 19. In this embodiment, the reverse force generated by the deformation of the first return spring 24 will push the self-locking rod 25 in the opposite direction, thereby facilitating the subsequent input of one end of the self-locking rod 25 into the inner side of the anchoring locking hole 19, thereby achieving a stable positioning of the extension support wing plate 22.
[0025] The overall effect achieved by the organization is as follows: During installation, the pre-embedded anchor bars 3 penetrating the bottom corner of the secondary connecting steel plate 2 are first aligned with the preset ground anchoring holes. The secondary connecting steel plate 2 is then smoothly lowered onto the installation base using hoisting equipment, allowing multiple pre-embedded anchor bars 3 to be simultaneously inserted into the deep ground structure. The pre-embedded anchor bars 3 adopt a "corner distributed" layout, utilizing their embedding effect with the concrete foundation to initially limit the horizontal displacement and vertical settlement of the secondary connecting steel plate 2. The operator moves the actuating rod 32 on the sliding compensation plate 31 on the outer surface of the rotating adjustment disk 27, causing the positioning constraint pin 30 to move laterally along the inner cavity of the rotating adjustment disk 27, disengaging one end of the positioning constraint pin 30 from the preset hole in the inner wall of the secondary connecting steel plate 2. At this time, the second return spring 29 is compressed and deformed, storing elastic potential energy; when the positioning constraint pin... After the rod 30 is fully retracted to the inside of the rotating adjustment disk 27, the rotating adjustment disk 27 is rotated so that the conical centering positioning piece 28 fixed on its surface rotates synchronously to the position where it aligns with the bottom positioning hole of the main support steel plate 1 and the ground auxiliary positioning hole. The rotating adjustment disk 27 is pushed so that the conical end of the conical centering positioning piece 28 is inserted into the positioning hole of the main support steel plate 1 and the ground simultaneously, realizing "steel-ground" double centering. After the lever 32 is released, the second reset spring 29 releases its elastic potential energy and pushes the positioning constraint pin 30 back to reset, so that one end of it is re-inserted into the corresponding hole on the inner wall of the secondary connecting steel plate 2, locking and fixing the rotating adjustment disk 27. The multiple conical centering positioning pieces 28 symmetrically arranged on both sides form multi-point embedding, further restricting the torsional displacement of the device and ensuring the stability of the pre-embedded foundation. When the bridge is subjected to external forces such as vehicle loads, temperature deformation, or earthquakes, the device enters the core operation stage of buffering and damping. The load borne by the bridge bearings is rigidly transferred to the main support steel plate 1 through the I-shaped embedded steel component 4 welded to the top center of the main support steel plate 1, causing the main support steel plate 1 to have a longitudinal displacement tendency. At this time, the positioning insert 5 on one side of the bottom of the main support steel plate 1 slides longitudinally along the guide slot 6 adapted at the top of the secondary connecting steel plate 2. Through the gap fit of the "insert plate-slot", the horizontal displacement of the main support steel plate 1 is limited, providing a guiding reference for the precise operation of the subsequent buffering mechanism. The longitudinal movement of the main support steel plate 1 is converted into the lateral movement of the sliding adjustment block 13 through the guide structure. The sliding adjustment block 13 moves in the direction of force conversion. A guide structure (composed of a main sliding track 7, a first guide groove 8, a secondary sliding track 9, and a second guide groove 10) on the inner side of one end of the main support steel plate 1 provides a stable trajectory for the sliding adjustment block 13. Guide limiting blocks 14 on one end surface of the sliding adjustment block 13 engage with the main sliding track 7 and the first guide groove 8, ensuring that the sliding adjustment block 13 moves only along the axis of the transverse stabilizing link 11. When the main support steel plate 1 moves longitudinally, the lateral force exerted by the guide structure on the guide limiting blocks 14 pushes the sliding adjustment block 13 to slide laterally along the transverse stabilizing link 11. The transverse stabilizing link 11 provides support for the sliding adjustment block 13. Provides rigid support to prevent bending under stress. The lateral movement of the sliding adjustment block 13 triggers the secondary coordinated energy dissipation of the buffer spring 12 and the hydraulic damping buffer 17. When the sliding adjustment block 13 slides, it compresses the buffer spring 12 sleeved on the outer ring surface of the lateral stabilizing link 11. The buffer spring 12 absorbs part of the impact energy through deformation and generates a reverse elastic force, which initially weakens the impact load. The linkage transmission rod 15 rotatably connected to the bottom of the sliding adjustment block 13 swings synchronously with its lateral movement (the two ends of the linkage transmission rod 15 are rotatably connected to the sliding adjustment block 13 and the hinged linkage base 16 respectively, and are arranged symmetrically in a figure-eight shape along the lateral center line of the hinged linkage base 16). The two hinged linkage bases 16 are pushed to move towards each other, forcing the hydraulic damping buffer 17 fixed on the side wall of the hinged linkage base 16 to be compressed. The hydraulic damping buffer 17 consumes the impact energy through the viscous friction of the internal hydraulic oil, converting kinetic energy into heat energy and dissipating it. At the same time, it generates a stable damping force, which forms a reverse resultant force with the elastic force of the buffer spring 12, limiting the excessive movement of the sliding adjustment block 13. Multiple sliding adjustment blocks 13 and guide limit blocks 14 are respectively engaged in the main sliding track 7, the secondary sliding track 9 and the corresponding guide groove. Through the synergistic effect of multiple sets of sliding connections, the structural stability during the buffering process is further improved, avoiding damage caused by excessive force at a single point. When there is a deviation in the installation position of the bridge bearing or the support range needs to be adjusted, the device achieves adaptive adaptation through the telescopic adjustment of the extension support wing plate 22, ensuring full coverage of the anchoring reinforcement effect. The specific adjustment principle is as follows: the operator pushes the self-locking fastening rod 25 on the inner side of the extension support wing plate 22. Since the self-locking fastening rod 25 forms an elastic sliding connection with the extension support wing plate 22 through the first return spring 24, the guide chamfer at its end can reduce the operating resistance. Under the action of thrust, the self-locking fastening rod 25 disengages from the anchoring locking hole 19 connected to the telescopic compensation groove 18 of the main support steel plate 1 and retracts to the inner side of the extension support wing plate 22, while compressing the first return spring 24 to store elastic potential energy; the auxiliary sliding liner 26 moves synchronously with the self-locking fastening rod 25, and through it and the extension support wing plate 22 The sliding fit of the inner wall ensures smooth movement of the self-locking fastening rod 25 and avoids jamming. The extension support wing plate 22 slides along the linear motion guide rail 21 on the side wall of the flow guide plate 20 inside the telescopic compensation groove 18 via the guide positioning boss 23 fixed on its inner side wall, thereby adjusting the support range. When it slides to the target position, the self-locking fastening rod 25 is released, and the first reset spring 24 releases its elastic potential energy, pushing the self-locking fastening rod 25 to reset, so that one end of it is re-inserted into the corresponding anchor locking hole 19 (the outer diameter of the self-locking fastening rod 25 is matched with the inner diameter of the anchor locking hole 19 to ensure accurate positioning). The flow guide plate 20 not only provides guidance for the extension support wing plate 22, but also blocks external debris from entering the telescopic compensation groove 18, preventing the adjustment mechanism from jamming and improving the service life of the device.
[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A bridge bearing pre-embedded anchorage reinforcement device, characterized in that: It includes a main support steel plate (1), a secondary connecting steel plate (2) distributed below the main support steel plate (1), a pre-embedded anchor bar (3) penetrating the bottom corner of the secondary connecting steel plate (2), and an I-shaped pre-embedded steel component (4) welded to the top center of the main support steel plate (1). A positioning guide structure is provided between the main support steel plate (1) and the secondary connecting steel plate (2). A transverse buffer stabilizing mechanism is provided inside the main support steel plate (1). The transverse buffer stabilizing mechanism is connected to a damping buffer assembly. A positioning insert plate (5) is fixed on one side of the bottom of the main support steel plate (1). A guide slot (6) adapted to the positioning insert plate (5) is opened on one side of the top of the secondary connecting steel plate (2). The lateral buffer stabilization mechanism includes a guide structure opened on the inner side of one end of the main support steel plate (1), a lateral stabilizing link (11) penetrating the inner cavity of one end of the main support steel plate (1), a buffer spring (12) sleeved on the outer ring surface of one end of the lateral stabilizing link (11), a sliding adjustment block (13) connected to one end of the buffer spring (12), and a guide limit block (14) fixedly connected to one end surface of the sliding adjustment block (13). The damping buffer assembly includes a linkage transmission rod (15) rotatably connected to the bottom of the sliding adjustment block (13), and the other end of the linkage transmission rod (15) is connected to a hinged linkage base (16). A hydraulic damping buffer (17) is fixed on the side wall of the hinged linkage base (16).
2. The bridge bearing pre-embedded anchorage reinforcement device according to claim 1, characterized in that: The guiding structure includes a main sliding track (7), a first guide groove (8), a secondary sliding track (9), and a second guide groove (10); the main sliding track (7) is located at the top of one end of the main support steel plate (1), and one end of the main sliding track (7) is connected to the first guide groove (8); the secondary sliding track (9) is located at the top of the secondary connecting steel plate (2), and one end of the secondary sliding track (9) is connected to the second guide groove (10); the guide limiting block (14) can slide along the main sliding track (7) and the first guide groove (8).
3. The bridge bearing pre-embedded anchorage reinforcement device according to claim 1, characterized in that: The main support steel plate (1) has an expansion and contraction compensation groove (18) on the inner side of one end, and an anchoring locking hole (19) is connected to one end of the expansion and contraction compensation groove (18); a flow guide plate (20) is provided on the inner side of the expansion and contraction compensation groove (18), and a linear motion guide rail (21) is provided on the side wall of the flow guide plate (20).
4. The bridge bearing pre-embedded anchorage reinforcement device according to claim 3, characterized in that: An extension support wing plate (22) is provided on the inner side of the telescopic compensation groove (18), and a guide positioning boss (23) adapted to the linear motion guide rail (21) is fixed on the inner wall of the extension support wing plate (22); a first return spring (24) is provided on the inner side of the end of the extension support wing plate (22) away from the guide positioning boss (23), and a self-locking fastening rod (25) is connected to the other end of the first return spring (24), and an auxiliary sliding liner (26) is sleeved on the outer ring surface of one end of the self-locking fastening rod (25).
5. The bridge bearing pre-embedded anchorage reinforcement device according to claim 1, characterized in that: A rotating adjustment disc (27) is rotatably connected to one side of the top end of the secondary connecting steel plate (2), and a conical centering positioning component (28) is fixed on the surface of the rotating adjustment disc (27).
6. The bridge bearing pre-embedded anchorage reinforcement device according to claim 5, characterized in that: The conical centering positioning component (28) is adapted to the positioning hole at the bottom of the main support steel plate (1).
7. A bridge bearing pre-embedded anchorage reinforcement device according to claim 6, characterized in that: The inner cavity of the rotary adjustment disk (27) is provided with a second return spring (29), and the other end of the second return spring (29) is connected to a positioning constraint pin (30); a sliding compensation plate (31) is sleeved on the outer ring surface of one end of the positioning constraint pin (30), and a toggle rod (32) is fixed on the outer surface of the sliding compensation plate (31).
8. The bridge bearing pre-embedded anchorage reinforcement device according to claim 1, characterized in that: The two ends of the linkage transmission rod (15) are respectively connected to the sliding adjustment block (13) and the hinged linkage base (16); the linkage transmission rod (15) is symmetrically distributed along the transverse center line of the hinged linkage base (16), and the symmetrically arranged linkage transmission rods (15) are arranged in a figure-eight shape.
9. A bridge bearing pre-embedded anchorage reinforcement device according to claim 4, characterized in that: The self-locking fastening rod (25) is elastically slidably connected to the extension support wing plate (22) through the first reset spring (24); the outer diameter of the self-locking fastening rod (25) is adapted to the inner diameter of the anchor locking hole (19), and the end of the self-locking fastening rod (25) is provided with a guide chamfer.