Anti-collision tough protection structure for pier

The combined structure of the U-shaped casing and the buffer mechanism solves the problem of protecting the bridge piers from the impact of floods and debris flows, achieves tough protection of the bridge piers and smoothes the water flow, and ensures the safety of the bridge.

CN223329693UActive Publication Date: 2025-09-12YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION +2
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Patent Information

Application Number
CN202422808068.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-09-12
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Existing bridge pier structures are easily damaged when faced with impacts such as floods and mudslides, leading to bridge safety accidents. Existing protective structures may affect water flow channels and lack effective resilient protection measures.

Method used

It adopts a combined structure of U-shaped casing, protective tiles, hinged supports and multi-layer buffer mechanisms, including base leaf springs, first and second buffer leaf springs, which are connected to the bridge piers through hinged supports. It uses elastic deformation and rotation structure to provide multi-level protection to prevent damage to the bridge piers.

Benefits of technology

Without increasing the water flow blocking surface, it provides multiple protections, regulates the water flow, enhances the toughness of the bridge piers, effectively resists the impact of mudslides and falling rocks, ensures the safety of the bridge, and the protective structure is easy to repair and replace.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pier anti-collision tough protection structure which comprises a U-shaped pile casing, a protection tile and a hinged support, the hinged support is fixedly arranged on the upper portion of the front side face of a pier base from front to back in the river water flow direction, the U-shaped pile casing is arranged on a pier in a sleeved mode, the open end of the U-shaped pile casing is located behind the pier, and a hinged support extending forwards is arranged at the lower end of the front side of the U-shaped pile casing. The hinge support is rotationally connected with the hinge support through a pin shaft horizontally arranged in the left-right direction, the protection tile is vertically arranged on the front end face of the U-shaped pile casing, a first anti-collision buffering mechanism is arranged between the protection tile and the U-shaped pile casing, and a second anti-collision buffering mechanism is arranged between the U-shaped pile casing and the pier. Under the condition that the damming section of the bridge pier is not increased, the toughness protection capability of the bridge pier under the action of external damage factors such as debris flow and rockfall is effectively improved, and the safety of the bridge is practically guaranteed.
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Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy projects, and in particular relates to a bridge pier anti-collision toughness protection structure. Background Art

[0002] During the summer flood season, mountainous river crossings and bridges are often impacted by flooding. Even more seriously, heavy rain can bring about massive debris flows. Debris flows are a solid-liquid two-phase fluid filled with sediment and rocks. Large rocks, in particular, can have a significant impact on bridge piers, directly damaging the structure and even leading to serious safety accidents such as bridge collapses. Therefore, there is an urgent need to design and manufacture a resilient, impact-resistant protective structure for bridge piers to proactively address these incidents. Utility Model Content

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides a bridge pier anti-collision toughness protection structure which has a compact structure, does not affect water flow, has good protection effect, and is safe and reliable.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a bridge pier anti-collision toughness protection structure, including a U-shaped casing, a protective tile, and a hinged support. With the river flow direction from front to back, the hinged support is fixedly arranged on the upper part of the front side of the pier base, the U-shaped casing is sleeved on the bridge pier, and the open end of the U-shaped casing is located behind the bridge pier. A hinge bracket extending forward is provided at the lower end of the front side of the U-shaped casing, and the hinge bracket is rotatably connected to the hinged support through a pin shaft horizontally arranged in the left and right directions. The protective tile is vertically arranged on the front end face of the U-shaped casing, a first anti-collision buffer mechanism is provided between the protective tile and the U-shaped casing, and a second anti-collision buffer mechanism is provided between the U-shaped casing and the bridge pier.

[0005] A wedge-shaped seat is provided on the upper surface of the pier base between the front side of the pier and the rear side of the hinged support. The upper surface of the wedge seat is a plane with a lower front and a higher back. A horizontal axis parallel to the pin axis is provided on the hinge bracket. Several arc-shaped base plate springs are rotatably connected to the horizontal axis. Support rollers are rotatably provided at the front and rear ends of the base plate springs, and the support rollers are in contact with the upper surface of the wedge seat.

[0006] The U-shaped casing includes a front side plate, a left transition plate, a right transition plate, a left side plate and a right side plate, all of which are vertically arranged. The left side and right side of the front side plate are respectively connected to the front side of the left transition plate and the front side of the right transition plate, the rear side of the left transition plate is connected to the front side of the left plate, and the rear side of the right transition plate is connected to the front side of the right plate. The lower end of the front side plate is fixedly connected to the upper side of the rear end of the hinge bracket, and a number of vertical ribs are provided on the front side of the front side plate. A front support plate parallel to the front side plate is fixedly connected to the front side of all the vertical ribs. A number of left transverse guide ribs are provided on the left side of the left transition plate and the left side plate, and a number of right transverse guide ribs are provided on the right side of the right transition plate and the right side plate.

[0007] The protective tile is an arc-shaped shell structure with an open rear side. The left and right sides of the protective tile are fixedly connected to the front side plate through a vertically arranged connecting plate and a triangular plate; the first anti-collision buffer mechanism includes several layers of horizontal plates, and a vertical rod is fixed vertically in the middle of all horizontal plates. Several first buffer plate springs are rotatably connected to the vertical rod. The left and right ends of the first buffer plate spring are respectively rotatably provided with first buffer rollers, and the first buffer rollers are in contact with the front side of the front support plate.

[0008] The second anti-collision buffer mechanism includes several layers of horizontal support frames arranged inside the front side of the U-shaped casing. Three support rods are vertically provided on the rear side of each layer of horizontal support frames. Several second buffer plate springs are rotatably connected to each support rod. Second buffer rollers are rotatably provided on the left and right ends of the second buffer plate springs. All second buffer rollers are in contact with the outer circle of the cylindrical or track-shaped bridge pier.

[0009] A connecting hole is provided at the lower rear end of the left and right plates of the U-shaped casing, and the connecting hole is flexibly connected to the pier base through a cable.

[0010] By adopting the above technical solution, compared with the existing technology, the utility model has the following beneficial effects:

[0011] (1) While providing multiple protections to the front and sides of the bridge piers, the water-blocking section is not increased, and the water flow can be adjusted to prevent disturbance and scouring damage. While providing tough protection to the bridge piers, the utility model is also a tough structure as a whole. The anti-collision tiles and transverse guide ribs can be replaced or repaired after damage.

[0012] (2) The support roller of the base plate spring contacts the inclined surface of the wedge seat, which is low in front and high in the back, and is a tough buffer structure between the U-shaped casing and the pier base.

[0013] (3) The anti-collision tile is located at the front end of the U-shaped casing. Several layers of horizontal plates are fixed vertically inside to provide support for the anti-collision tile. Vertical rods and several first buffer leaf springs are installed behind the horizontal plates to provide good anti-collision and buffering effects. The anti-collision tile has two functions: to divert water flow and improve the waterlogging condition of the bridge pier; and to prevent collisions and buffer, which is the first protective barrier of the entire protective structure.

[0014] (4) The U-shaped casing is welded from multiple stainless steel plates, including the front side plate, left transition plate, right transition plate, left side plate, and right side plate. The vertical ribs and front support plate not only reinforce the front side plate but also provide support for the first buffer leaf spring. Several layers of horizontal support frames enhance the strength of the U-shaped casing and provide installation locations for the second buffer leaf spring, allowing it to surround the outer circle of the pier, forming a tough buffer structure between the U-shaped casing and the pier.

[0015] (5) The left transverse guide rib and the right transverse guide rib are respectively fixed on the outer surface of the U-shaped casing wall and arranged from front to back along the outer side of the U-shaped casing. They have the following functions: during the side impact damage process, the deformation of the protective ribs can play an effective buffering and protective role for the pier body; and regulate the water flow to prevent the water flow from being disturbed and washed away.

[0016] (6) The hinged support is fixed to the front end of the pier base. The hinged bracket at the bottom of the front end of the U-shaped casing is connected to the hinged support via a pin. The lower rear end of the U-shaped casing is flexibly connected to the pier base via a cable to position the U-shaped casing. The entire structure of the utility model is like a boot for the bridge pier. When the front of the protective structure is hit, it will rotate backward and downward with the hinge as the fulcrum, thereby triggering the base leaf spring, the first buffer leaf spring and the second buffer leaf spring of the leaf spring to produce a linkage buffering reaction.

[0017] In summary, the present invention provides multi-level resilience protection for the pier body in the face of destructive impacts such as massive floods or debris flows, thanks to the elastic deformation of the protective tiles, base leaf springs, first and second buffer leaf springs, and the destructive deformation of the U-shaped casing structure. This design effectively enhances the pier's resilience against external destructive factors such as debris flows and falling rocks, without increasing the pier's waterlogging cross-section, thereby effectively ensuring bridge safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the rear side of the utility model;

[0020] Figure 3 It is a schematic diagram of the hinged support and wedge-shaped seat installed on the pier base;

[0021] Figure 4 This is a schematic diagram of the split structure of the U-shaped casing;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the protective tile and the first anti-collision buffer mechanism;

[0023] Figure 6 It is a three-dimensional structural diagram of the second anti-collision buffer mechanism and the front side surface of the wedge-shaped seat;

[0024] Figure 7 It is a three-dimensional structural diagram of the rear side of the second anti-collision buffer mechanism. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0026] like Figure 1-Figure 7 As shown, the anti-collision toughness protection structure of the bridge pier of the present invention includes a U-shaped casing 1, a protective tile 2, and a hinged support 3. With the river flow direction from front to back, the hinged support 3 is fixedly arranged on the upper part of the front side of the pier base 4, the U-shaped casing 1 is sleeved on the bridge pier 5, and the open end of the U-shaped casing 1 is located behind the bridge pier 5. The lower end of the front side of the U-shaped casing 1 is provided with a hinge bracket 6 extending forward, and the hinge bracket 6 is rotatably connected to the hinged support 3 through a pin shaft 7 horizontally arranged along the left and right directions. The protective tile 2 is vertically arranged on the front end face of the U-shaped casing 1, and a first anti-collision buffer mechanism 8 is provided between the protective tile 2 and the U-shaped casing 1, and a second anti-collision buffer mechanism 9 is provided between the U-shaped casing 1 and the bridge pier 5.

[0027] A wedge-shaped seat 10 is provided on the upper surface of the pier base 4 between the front side of the pier 5 and the rear side of the hinged support 3. The upper surface of the wedge-shaped seat 10 is a plane with a lower front and a higher back. A horizontal axis 11 parallel to the pin shaft 7 is provided on the hinge bracket 6. A plurality of arc-shaped base leaf springs 12 are rotatably connected to the horizontal axis 11. Support rollers 13 are rotatably provided at the front and rear ends of the base leaf springs 12, and the support rollers 13 are in contact with the upper surface of the wedge-shaped seat 10.

[0028] The U-shaped casing 1 includes a front side plate 14, a left transition plate 15, a right transition plate 16, a left side plate 17 and a right side plate 18, all of which are vertically arranged. The left and right sides of the front side plate 14 are connected to the front side of the left transition plate 15 and the front side of the right transition plate 16 respectively. The rear side of the left transition plate 15 is connected to the front side of the left plate 17, and the rear side of the right transition plate 16 is connected to the front side of the right side plate 18. The lower end of the front side plate 14 is fixedly connected to the upper side of the rear end of the hinge bracket 6. A number of vertical ribs 19 are provided on the front side of the front side plate 14. A front support plate 20 parallel to the front side plate 14 is fixedly connected to the front side of all the vertical ribs 19. The left sides of the left transition plate 15 and the left side plate 17 are provided with a number of left transverse guide ribs 21, and the right sides of the right transition plate 16 and the right side plate 18 are provided with a number of right transverse guide ribs 22.

[0029] The protective tile 2 is an arc-shaped shell structure with an open rear side. The left and right sides of the protective tile 2 are fixedly connected to the front side plate 14 through a vertically arranged connecting plate 23 and a triangular plate 24; the first anti-collision buffer mechanism 8 includes several layers of horizontal plates 25, and a vertical rod 26 is fixed vertically in the middle of all horizontal plates 25. Several first buffer plate springs 27 are rotatably connected to the vertical rod 26. The left and right ends of the first buffer plate spring 27 are respectively rotatably provided with first buffer rollers 28, and the first buffer rollers 28 are in contact with the front side of the front support plate 20.

[0030] The second anti-collision buffer mechanism 9 includes several layers of horizontal support frames 29 arranged inside the front side of the U-shaped casing 1, and three support rods 30 are vertically provided on the rear side of each layer of horizontal support frames 29. Several second buffer leaf springs 31 are rotatably connected to each support rod 30. Second buffer rollers 32 are rotatably provided on the left and right ends of the second buffer leaf spring 31, and all second buffer rollers 32 are in contact with the outer circle of the cylindrical or track-shaped bridge pier 5.

[0031] A connection hole 33 is provided at the lower rear end of the left side plate 17 and the right side plate 18 of the U-shaped casing 1 . The connection hole 33 is flexibly connected to the pier base 4 via a cable.

[0032] The working principle of the present invention is as follows: under the impact of floods or debris flows, the anti-collision tiles first undergo toughness deformation protection, and then the impact drives the U-shaped casing 1 to move downward and backward with the pin shaft 7 of the hinged support 3 as the center line, successively driving the base leaf spring 12, the second buffer leaf spring 31 and the second buffer leaf spring 31 to undergo toughness deformation, generating reverse thrust, offsetting the impact of the debris flow on the bridge pier 5, thereby achieving good anti-impact protection effect.

[0033] The above embodiments illustrate the basic principles and features of the present invention. However, the above merely illustrates preferred embodiments of the present invention and is not intended to limit the present invention to the embodiments described. Persons skilled in the art, inspired by this patent, may make various modifications and improvements without departing from the spirit of the present invention and the scope of protection of the claims, all of which fall within the scope of protection of the present invention. Therefore, the patent and scope of protection of this utility model shall be subject to the appended claims.

Claims

1. Bridge pier anti-collision toughness protection structure, characterized by: It includes a U-shaped casing, a protective tile, and a hinged support. With the river flow direction from front to back, the hinged support is fixedly arranged on the upper part of the front side of the pier base. The U-shaped casing is sleeved on the pier. The open end of the U-shaped casing is located behind the pier. The lower end of the front side of the U-shaped casing is provided with a hinged bracket extending forward. The hinged bracket is rotatably connected to the hinged support through a pin shaft horizontally arranged along the left and right directions. The protective tile is vertically arranged on the front end face of the U-shaped casing. A first anti-collision buffer mechanism is provided between the protective tile and the U-shaped casing, and a second anti-collision buffer mechanism is provided between the U-shaped casing and the pier.

2. The bridge pier anti-collision toughness protection structure according to claim 1 is characterized by: A wedge-shaped seat is provided on the upper surface of the pier base between the front side of the pier and the rear side of the hinged support. The upper surface of the wedge seat is a plane with a lower front and a higher back. A horizontal axis parallel to the pin axis is provided on the hinge bracket. Several arc-shaped base plate springs are rotatably connected to the horizontal axis. Support rollers are rotatably provided at the front and rear ends of the base plate springs, and the support rollers are in contact with the upper surface of the wedge seat.

3. The bridge pier anti-collision toughness protection structure according to claim 2 is characterized by: The U-shaped casing includes a front side plate, a left transition plate, a right transition plate, a left side plate and a right side plate, all of which are vertically arranged. The left side and right side of the front side plate are respectively connected to the front side of the left transition plate and the front side of the right transition plate, the rear side of the left transition plate is connected to the front side of the left plate, and the rear side of the right transition plate is connected to the front side of the right plate. The lower end of the front side plate is fixedly connected to the upper side of the rear end of the hinge bracket, and a number of vertical ribs are provided on the front side of the front side plate. A front support plate parallel to the front side plate is fixedly connected to the front side of all the vertical ribs. A number of left transverse guide ribs are provided on the left side of the left transition plate and the left side plate, and a number of right transverse guide ribs are provided on the right side of the right transition plate and the right side plate.

4. The bridge pier anti-collision toughness protection structure according to claim 3 is characterized by: The protective tile is an arc-shaped shell structure with an open rear side. The left and right sides of the protective tile are fixedly connected to the front side plate through a vertically arranged connecting plate and a triangular plate; the first anti-collision buffer mechanism includes several layers of horizontal plates, and a vertical rod is fixed vertically in the middle of all horizontal plates. Several first buffer plate springs are rotatably connected to the vertical rod. The left and right ends of the first buffer plate spring are respectively rotatably provided with first buffer rollers, and the first buffer rollers are in contact with the front side of the front support plate.

5. The bridge pier anti-collision toughness protection structure according to claim 3 or 4, characterized in that: The second anti-collision buffer mechanism includes several layers of horizontal support frames arranged inside the front side of the U-shaped casing. Three support rods are vertically provided on the rear side of each layer of horizontal support frames. Several second buffer plate springs are rotatably connected to each support rod. Second buffer rollers are rotatably provided on the left and right ends of the second buffer plate springs. All second buffer rollers are in contact with the outer circle of the cylindrical or track-shaped bridge pier.

6. The bridge pier anti-collision toughness protection structure according to claim 3 or 4, characterized in that: A connecting hole is provided at the lower rear end of the left and right plates of the U-shaped casing, and the connecting hole is flexibly connected to the pier base through a cable.