Bridge pile foundation protection device
By setting a combination of protective sleeves and buffer rollers around the outer periphery of bridge pile foundations, the problem of damage to vehicles or ships and pile foundations during collisions caused by existing bridge pile foundation protection structures has been solved, achieving effective collision energy absorption and protection.
Patent Information
- Application Number
- CN202520159178.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing bridge pile foundation protection structures are prone to damage to vehicles or ships during collisions, and may cause permanent damage to the bridge pile foundations, lacking effective buffer protection mechanisms.
A bridge pile foundation protection device including a protective sleeve and a buffer roller was designed. The protective sleeve is a combination structure of buffer roller, slide bar, slide seat and buffer spring. The buffer roller absorbs the collision energy through rotation and elastic deformation during collision, thus protecting the bridge pile foundation.
It effectively buffers collision forces, reducing the degree of damage to vehicles or ships, while protecting the integrity and stability of bridge pile foundations.
Smart Images

Figure CN223824119U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge engineering technology, and in particular to a bridge pile foundation protection device. Background Technology
[0002] Bridge pile foundations are the lowest part of a bridge structure that directly contacts the ground, and are an important component of the bridge's substructure. To ensure the normal use and safety of the bridge, the foundation must have sufficient strength and stability, and deformation must be within acceptable limits. Therefore, to prevent bridge pile foundations from being damaged by collisions with passing vehicles and ships, protective structures are generally installed on the outside of the pile foundations. Most existing bridge pile foundation anti-collision structures are metal railings or concrete pillars. These structures are made of relatively hard materials, and in the event of a collision, they can cause significant damage to the vehicles or ships involved. Furthermore, because they lack a buffer protection mechanism, breakage can even cause permanent damage to the bridge pile foundation. Therefore, a bridge pile foundation protection device needs to be developed. Utility Model Content
[0003] The purpose of this utility model is to provide a bridge pile foundation protection device to solve the technical problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] This utility model discloses a bridge pile foundation protection device, comprising a protective sleeve fixedly fitted around the outer periphery of the bridge pile foundation. A base plate is fixedly provided at the bottom of the protective sleeve. The base plate is fixedly connected to the foundation at the location of the bridge pile foundation through multiple connecting components evenly arranged along its circumference. Multiple mounting grooves are evenly opened along the circumference on the outer peripheral wall of the protective sleeve. Each mounting groove is provided with a mounting seat with a U-shaped cross section. The free end of each mounting seat faces the outside of the protective sleeve, and a buffer roller is vertically rotatably mounted on each mounting seat.
[0006] Furthermore, an anti-corrosion adhesive layer is provided between the inner peripheral wall of the protective sleeve and the outer peripheral wall of the bridge pile foundation.
[0007] Furthermore, the protective sleeve has a plurality of first sliding holes evenly spaced on the inner end face of each of the mounting grooves, and a second sliding hole is formed at the inner end of each of the first sliding holes. The inner diameter of the second sliding hole is larger than the inner diameter of the first sliding hole. Each mounting base has a sliding rod fixedly installed at a position corresponding to each of the first sliding holes. Each sliding rod slides in cooperation with the corresponding first sliding hole. The end of each sliding rod away from the mounting base extends into the interior of the second sliding hole and is fixedly installed with a sliding seat that slides in cooperation with the second sliding hole. A buffer spring is provided between the sliding seat and the inner end of the second sliding hole.
[0008] Furthermore, each of the connecting components includes a connecting plate fixedly disposed above the substrate, and an anchoring sleeve fixedly disposed in the middle of each connecting plate. The lower half of the anchoring sleeve has a pointed conical structure. A plurality of elongated through holes are evenly opened circumferentially near the lower end of the anchoring sleeve, and an anchoring rod is hinged to the lower end of each elongated through hole. The inner circumferential wall of the upper half of the anchoring sleeve has an internal thread and a screw threadedly connected thereto. A pressure head is rotatably disposed at the lower end of the screw, and the pressure head slides in cooperation with the inner wall of the anchoring sleeve. A plurality of connecting rods corresponding one-to-one with each anchoring rod are evenly hinged at the bottom of the pressure head, and the end of each connecting rod away from the pressure head is hinged to the middle of the corresponding anchoring rod.
[0009] Furthermore, the connecting disc is fixedly connected to the base plate by a plurality of connecting bolts evenly arranged along its circumference.
[0010] Furthermore, a transmission head is fixedly provided at the upper end of the screw, and a connector with an inverted T-shaped cross-section is fixedly provided at the lower end of the screw. A connecting hole with a T-shaped cross-section and adapted to the connector is opened at the upper end of the pressure head.
[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0012] This invention effectively protects bridge pile foundations through the protective sleeve and the buffer rollers evenly distributed along the outer circumference of the protective sleeve. When an external vehicle or vessel collides with the bridge pile foundation, it will first come into contact with the outer buffer roller structure. Since the mounting base of the buffer roller cooperates with the buffer spring inside the protective sleeve through the sliding rod and sliding seat, the collision force can be effectively buffered, improving the protection effect on the bridge pile foundation. Moreover, if a vehicle or vessel scrapes against the buffer roller, the rotating buffer roller will buffer the scraping force through rotation, protecting the bridge pile foundation while also reducing the degree of damage to the vehicle or vessel. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] Figure 1 This is a structural schematic diagram of the bridge according to this utility model;
[0015] Figure 2 for Figure 1 Sectional view along the middle AA direction;
[0016] Figure 3 for Figure 1 Enlarged structural diagram at point B;
[0017] Figure 4 for Figure 1Enlarged structural diagram at point C;
[0018] Explanation of reference numerals in the attached drawings: 1. Bridge pile foundation; 2. Protective sleeve; 3. Anti-corrosion adhesive layer; 4. Base plate; 5. Foundation; 6. Connecting disc; 7. Connecting bolt; 8. Anchor sleeve; 9. Long through hole; 10. Anchor rod; 11. Screw rod; 12. Pressure head; 13. Connecting rod; 14. Transmission head; 15. Connecting head; 16. Connecting hole; 17. Mounting groove; 18. Mounting seat; 19. Buffer roller; 20. First sliding hole; 21. Second sliding hole; 22. Sliding rod; 23. Sliding seat; 24. Buffer spring. Detailed Implementation
[0019] like Figures 1-4 As shown, a bridge pile foundation protection device includes a protective sleeve 2 fixedly fitted around the outer periphery of a bridge pile foundation 1. An anti-corrosion adhesive layer 3 is provided between the inner peripheral wall of the protective sleeve 2 and the outer peripheral wall of the bridge pile foundation 1. A base plate 4 is fixedly provided at the bottom of the protective sleeve 2. The base plate 4 is fixedly connected to the foundation 5 at the location of the bridge pile foundation 1 by a plurality of connecting components evenly arranged along its circumference.
[0020] Each of the connecting components includes a connecting plate 6 fixedly installed on the base plate 4. Specifically, the connecting plate 6 is fixedly connected to the base plate 4 by a plurality of connecting bolts 7 evenly arranged along its circumference. An anchoring sleeve 8 is fixedly installed in the middle of each connecting plate 6. The lower half of the anchoring sleeve 8 has a pointed conical structure. The part of the anchoring sleeve 8 near the lower end has a plurality of elongated through holes 9 evenly opened along its circumference, and an anchoring rod 10 is hinged to the lower end of each elongated through hole 9. The inner circumferential wall of the upper half of the anchoring sleeve 8 has an internal thread and a screw 11 threadedly connected to it is installed. A pressure head 12 is rotatably connected to the lower end of the screw 11, and the pressure head 12 slides in engagement with the inner wall of the anchoring sleeve 8. The bottom of the pressure head 12 is evenly hinged with a plurality of connecting rods 13 corresponding to each of the anchor rods 10, and the end of each connecting rod 13 away from the pressure head 12 is hinged to the middle of the corresponding anchor rod 10.
[0021] In this embodiment, a transmission head 14 is fixedly provided at the upper end of the screw 11, so as to drive the screw 11 to rotate and screw it into the interior of the anchor sleeve 8 through a corresponding power device. A connector 15 with an inverted T-shaped cross-section is fixedly provided at the lower end of the screw 11, and a connecting hole 16 with a T-shaped cross-section that is adapted to the connector 15 is opened at the upper end of the pressure head 12. The screw 11 and the pressure head 12 are rotatedly connected through the cooperation between the connector 15 and the connecting hole 15.
[0022] After the base plate and protective sleeve are fitted onto the outside of the bridge pile foundation, the anchoring sleeve is first inserted into the foundation. Then, the connecting plate and the anchoring sleeve are fixedly connected to the base plate by connecting bolts. Then, the screw is driven to rotate by the corresponding power equipment. The screw screw is screwed into the anchoring sleeve and pushes the pressure head downward. Under the action of the connecting rod, each anchoring rod opens outward from each of the elongated through holes and fits tightly with the soil layer of the foundation, thereby effectively ensuring the installation firmness of the base plate and protective sleeve.
[0023] The outer peripheral wall of the protective sleeve 2 is provided with a plurality of mounting grooves 17 evenly distributed circumferentially. Each mounting groove 17 is provided with a U-shaped mounting seat 18. The free end of each mounting seat 18 faces the outside of the protective sleeve 2, and a buffer roller 19 is vertically and rotatably mounted on each mounting seat 18. The outer end of each buffer roller 19 extends to the outside of the mounting groove 17. In this embodiment, the material of each buffer roller 19 and the protective sleeve 2 is energy-absorbing rubber.
[0024] The protective sleeve 2 has a plurality of first sliding holes 20 evenly spaced on the inner end face of each of the mounting grooves 17, and a second sliding hole 21 is formed at the inner end of each of the first sliding holes 20. The inner diameter of the second sliding hole 21 is larger than the inner diameter of the first sliding hole 20. Each mounting base 18 is fixedly provided with a sliding rod 22 at a position corresponding to each of the first sliding holes 20, and each sliding rod 22 slides in cooperation with the corresponding first sliding hole 20. The end of each sliding rod 22 away from the mounting base 18 extends into the interior of the second sliding hole 21 and is fixedly provided with a sliding seat 23 that slides in cooperation with the second sliding hole 21. A buffer spring 24 is provided between the sliding seat 23 and the inner end of the second sliding hole 21.
[0025] This invention effectively protects bridge pile foundations through the protective sleeve and the buffer rollers evenly distributed along the outer circumference of the protective sleeve. When an external vehicle or vessel collides with the bridge pile foundation, it will first come into contact with the outer buffer roller structure. Since the mounting base of the buffer roller cooperates with the buffer spring inside the protective sleeve through the sliding rod and sliding seat, the collision force can be effectively buffered, improving the protection effect on the bridge pile foundation. Moreover, if a vehicle or vessel scrapes against the buffer roller, the rotating buffer roller will buffer the scraping force through rotation, protecting the bridge pile foundation while also reducing the degree of damage to the vehicle or vessel.
[0026] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A bridge pile foundation protection device, characterized in that: The device includes a protective sleeve that is fixedly fitted around the outer periphery of a bridge pile foundation. A base plate is fixedly installed at the bottom of the protective sleeve. The base plate is fixedly connected to the foundation at the location of the bridge pile foundation through multiple connecting components that are evenly arranged along its circumference. Multiple mounting grooves are evenly opened along the circumference on the outer wall of the protective sleeve. Each mounting groove is provided with a mounting seat with a U-shaped cross section. The free end of each mounting seat faces the outside of the protective sleeve, and a buffer roller is vertically rotatably installed on each mounting seat.
2. The bridge pile foundation protection device according to claim 1, characterized in that: An anti-corrosion adhesive layer is provided between the inner peripheral wall of the protective sleeve and the outer peripheral wall of the bridge pile foundation.
3. The bridge pile foundation protection device according to claim 1, characterized in that: The protective sleeve has a plurality of first sliding holes evenly spaced on the inner end face of each of the mounting slots, and a second sliding hole is formed at the inner end of each of the first sliding holes. The inner diameter of the second sliding hole is larger than the inner diameter of the first sliding hole. Each mounting base has a sliding rod fixedly installed at a position corresponding to each of the first sliding holes. Each sliding rod slides in cooperation with the corresponding first sliding hole. The end of each sliding rod away from the mounting base extends into the interior of the second sliding hole and is fixedly installed with a sliding seat that slides in cooperation with the second sliding hole. A buffer spring is provided between the sliding seat and the inner end of the second sliding hole.
4. The bridge pile foundation protection device according to claim 1, characterized in that: Each of the connecting components includes a connecting plate fixedly disposed above the substrate. An anchoring sleeve is fixedly disposed in the middle of each connecting plate. The lower half of the anchoring sleeve has a pointed conical structure. A plurality of elongated through holes are evenly opened circumferentially near the lower end of the anchoring sleeve, and an anchoring rod is hinged to the lower end of each elongated through hole. The inner circumferential wall of the upper half of the anchoring sleeve has an internal thread and a screw threadedly connected thereto. A pressure head is rotatably disposed at the lower end of the screw, and the pressure head slides in cooperation with the inner wall of the anchoring sleeve. A plurality of connecting rods corresponding one-to-one with each anchoring rod are evenly hinged at the bottom of the pressure head, and the end of each connecting rod away from the pressure head is hinged to the middle of the corresponding anchoring rod.
5. The bridge pile foundation protection device according to claim 4, characterized in that: The connecting plate is fixedly connected to the base plate by a plurality of connecting bolts evenly arranged along its circumference.
6. The bridge pile foundation protection device according to claim 4, characterized in that: A transmission head is fixedly provided at the upper end of the screw, and a connector with an inverted T-shaped cross-section is fixedly provided at the lower end of the screw. A connecting hole with a T-shaped cross-section and adapted to the connector is opened at the upper end of the pressure head.