Bridge pier anti-collision device

Abstract

The utility model relates to a bridge pier anti-collision device, which aims to solve the problem that the design of the existing fixed bridge pier lacks guiding capability, and belongs to the technical field of bridge engineering, the device mainly structurally comprises an inner floating mounting seat and an outer anti-collision ring, the floating mounting seat realizes the mobility of the device, and the anti-collision ring plays the roles of energy absorption and guiding; the floating mounting seat is provided with a light hollow buoy lantern ring for providing buoyancy for the whole anti-collision device; the anti-collision ring is of a honeycomb energy absorption structure and is combined with the elastic ring to provide a multi-stage energy absorption effect; and a roller is mounted on the floating mounting seat, so that the annular anti-collision ring can rotate along the pier more easily to unload force when being collided. According to the anti-collision device, the anti-collision position can be automatically adjusted according to the change of the water level, meanwhile, the dual functions of energy absorption and force unloading are achieved, the anti-collision effect is enhanced, and the safety of the pier is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, and more specifically, to a bridge pier anti-collision device. Background Technology

[0002] With rapid economic development, numerous bridges have been built across rivers. Simultaneously, the shipping industry has also grown rapidly, with large and medium-sized vessels frequently navigating rivers and oceans. Consequently, accidents involving ships colliding with bridge piers are increasing. Due to the large tonnage and immense kinetic energy of ships, a collision can result in damage to both the ship and the bridge pier, or even sinking the ship and destroying the bridge.

[0003] Therefore, bridge protection has received high attention. Bridge pier anti-collision devices can be mainly divided into two types based on their mechanism: energy absorption and guidance. Guiding devices, when a bridge is impacted, deflect the impact force by guiding its direction, ensuring that most of the kinetic energy remains on the vessel, reducing the transmission of impact force to the pier, thus protecting the pier.

[0004] Chinese Patent No. 202020234220.1 discloses a fixed anti-collision bridge pier, comprising an inner cylinder fitted onto the pier body and an outer cylinder fitted onto the inner cylinder; the outer cylinder and the inner cylinder are connected by an elastic connecting plate, and shock-absorbing material is filled between the outer elastic connecting plate, the outer cylinder, and the inner cylinder; the inner cylinder is connected to the pier body by an inner elastic connecting plate, and an inner buffer zone exists between the inner cylinder, the inner elastic connecting plate, and the pier body; multi-level energy absorption is achieved through multiple buffer zones, improving the protection of the bridge pier.

[0005] However, its fixed design lacks guiding capabilities, which to some extent limits the improvement of the protective capabilities of the anti-collision structure. Utility Model Content

[0006] The purpose of this invention is to provide a bridge pier anti-collision device that can rotate along the bridge pier to unload force, thereby solving the problem of poor force unloading ability of fixed bridge pier anti-collision devices.

[0007] To address the aforementioned problems, this utility model provides a bridge pier anti-collision device, aiming to solve the lack of guiding capability in existing fixed designs, belonging to the field of bridge engineering technology. The device mainly consists of an inner floating mounting base and an outer anti-collision ring. The floating mounting base enables the device's mobility, while the anti-collision ring serves to absorb energy and provide guidance. The floating mounting base is equipped with a lightweight, hollow buoyancy ring to provide buoyancy for the entire anti-collision device. The anti-collision ring adopts a honeycomb energy-absorbing structure combined with an elastic ring to provide multi-stage energy absorption. Rollers are installed on the floating mounting base, making it easier for the annular anti-collision ring to rotate along the bridge pier and dissipate force upon impact. This anti-collision device can automatically adjust its anti-collision position according to water level changes, and simultaneously possesses both energy absorption and force dissipation functions, enhancing the anti-collision effect and effectively improving the safety of the bridge pier.

[0008] As a preferred embodiment, the floating mounting base includes a mounting collar, with the mounting collar and the float collar located at opposite ends of the floating mounting base along the axial direction of the pier column. Multiple roller structures are evenly distributed along the circumference of the inner edges of both the mounting collar and the float collar, providing the floating mounting base with the freedom to slide up and down along the pier column. This design optimizes the structure of the floating mounting base, making it more adaptable to sliding up and down along the pier height. Specifically, it includes two ring-shaped structures: an upper mounting collar and a lower float collar. Roller structures are provided on the inner edges of both collar structures to form a sliding support with the outer circumference of the pier.

[0009] As a preferred embodiment, the roller structure includes a roller seat fixedly mounted to the inner edge surfaces of the mounting collar and the pontoon collar, and a roller rotatably mounted on the roller seat, with the circumferential surface of the roller conforming to the outer circumferential surface of the pier column. This design optimizes the roller structure, comprising a roller seat and a roller. The roller seat is fixedly mounted to the inner edge surfaces of the mounting collar and the pontoon collar, and the roller is rotatably mounted on the roller. This design is simple in structure and provides good mobility and support.

[0010] As a preferred embodiment, the anti-collision ring includes a supporting inner ring and an anti-collision outer ring. An elastic support component is provided between the anti-collision outer ring and the supporting inner ring to bear and transmit the stress caused by the impact and provide elastic shock absorption support between the two. The elastic support component includes a plurality of elastic support platforms densely distributed between the inner circumferential surface of the anti-collision outer ring and the outer circumferential surface of the supporting inner ring. The supporting inner ring is connected between the mounting collar and the float collar of the floating mounting base.

[0011] This design provides a preferred anti-collision ring structure, which includes two ring structures, an inner and an outer one, with an elastic support component between them. This structure maintains the rigidity of the anti-collision ring itself, enhances the durability of the support device, and ensures good overall elasticity, guaranteeing the anti-collision effect. The inner ring structure facilitates cooperation with the floating mounting base. Multiple elastic support platforms evenly distributed between the outer anti-collision ring and the inner support ring distribute the support stress, ensuring a shock-absorbing effect.

[0012] As a preferred embodiment, the elastic support platform includes two mounting seats at its two ends and a damping spring connecting the two mounting seats. The two mounting seats are respectively used for mounting and fixing to the inner circumferential surface of the outer anti-collision ring and the outer circumferential surface of the inner support ring. This design optimizes the structural design of the elastic support platform. The main structure includes mounting seats fixed to the two side rings respectively, and a damping spring connecting the two mounting seats, which provides elastic support.

[0013] As a preferred embodiment, the elastic support platform further includes an elastic ring. Both mounting seats have through holes extending through their sides, perpendicular to the length direction of the damping spring. The elastic ring is installed through the through holes of each of the two mounting seats to enhance the supporting elasticity of the damping spring. This design provides a further optimized elastic support platform design. Based on the structure of the damping spring, an elastic ring structure connected to the mounting seats at both ends is added. The elastic ring structure connects to the mounting seats through through holes, further improving the elasticity of the connection. The elastic ring structure compensates for the shortcomings of spring support, providing not only support under compression but also tensile elasticity.

[0014] As a preferred embodiment, a plurality of roller mechanisms evenly distributed along the circumference are provided between the mounting collar and the pontoon collar. Each roller mechanism includes a fixed shaft and a bushing rotatably connected to the outer circumference of the fixed shaft. The two ends of the fixed shaft are respectively fixedly connected to the mounting collar and the pontoon collar. The outer surface of the bushing is fitted against the inner surface of the supporting inner ring, allowing the anti-collision ring to be rotatably connected to the floating mounting base. This design further optimizes the overall structural design of the device, providing a mating structure design between the floating mounting base and the anti-collision ring. The roller mechanism provides rotatable support between the floating mounting base and the supporting inner ring. With this structure, when the anti-collision ring is impacted, it can rotate relative to the pier column to transfer and transmit the impact force. This not only prevents irreversible deformation of the device under impact but also guides the direction of impact on the vessel or other objects through the rotation of the anti-collision structure, reducing damage to the vessel from the impact.

[0015] As a preferred embodiment, the mounting collar, float collar, inner support ring, and outer anti-collision ring are each constructed from three or more arc-shaped splicing components to form a complete circular structure. This design optimizes the design of the various circular structures in the previous design by using separate arc-shaped splicing components. Multiple arc-shaped components are spliced ​​together to form a complete circular structure. This way, if irreversible deformation or other damage occurs in one part of the structure, only the damaged part needs to be replaced, greatly reducing the practical cost of the device.

[0016] As a preferred embodiment, both ends of the arc-shaped splicing component are provided with concave-convex interlocking mounting structures to enhance the splicing and fixing strength. This design is a further optimization based on the above design concept. By providing concave-convex interlocking mounting structures at both ends of the arc-shaped splicing component used for splicing, it facilitates docking operations and improves the strength of the assembled device.

[0017] As a preferred embodiment, the outer anti-collision ring is a hollow shell structure densely filled with elastic support rods, the length direction of which is parallel to the length direction of the bridge pier column. This design provides a preferred structural design for the outer anti-collision ring, offering more stable and effective elastic support through the internally filled elastic support rods. Attached Figure Description

[0018] Figure 1 A schematic diagram of a floating bridge pier anti-collision device provided by this utility model, installed on the bridge pier column to be protected;

[0019] Figure 2 for Figure 1 Schematic diagram of a floating bridge pier anti-collision device;

[0020] Figure 3 for Figure 2 A partially enlarged schematic diagram of the anti-collision device for floating bridge piers;

[0021] Figure 4 for Figure 2 A partially enlarged schematic diagram of the elastic support platform of the floating bridge pier anti-collision device;

[0022] Figure 5 for Figure 2 A schematic diagram of the internal structure of the outer anti-collision ring of the floating bridge pier anti-collision device.

[0023] in, Figures 1-5 middle:

[0024] 1. Floating mounting base; 1-1. Mounting collar; 1-2. Float collar; 1-3. Roller structure; 1-4. Roller mechanism; 2. Anti-collision ring; 2-1. Inner support ring; 2-2. Outer anti-collision ring; 2-3. Elastic support platform; 2-3-1. Mounting base; 2-3-2. Shock-absorbing spring; 2-3-3. Elastic ring; 2-3-4. Through hole; 2-4. Elastic support bar; 3. Pier column; 4. Concave-convex fitting mounting structure. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Before providing a detailed explanation of the working principle of this utility model, further clarification is needed regarding its description: In this description, terms such as "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a welded connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] refer to Figures 1-5 The following examples illustrate this. Figure 1 A schematic diagram of a floating bridge pier anti-collision device provided by this utility model, installed on the bridge pier column to be protected; Figure 2 for Figure 1 Schematic diagram of a floating bridge pier anti-collision device; Figure 3 for Figure 2 A partially enlarged schematic diagram of the anti-collision device for floating bridge piers; Figure 4 for Figure 2 A partially enlarged schematic diagram of the elastic support platform of the floating bridge pier anti-collision device; Figure 5 for Figure 2A schematic diagram of the internal structure of the outer anti-collision ring of the floating bridge pier anti-collision device.

[0029] The floating pier anti-collision device provided in this embodiment includes an anti-collision ring 2 and a floating mounting base 1. The floating mounting base 1 is sleeve-shaped and is slidably fitted onto the outer periphery of the pier column 3 to be protected. The floating mounting base 1 is provided with a float collar 1-2 to provide buoyancy to support the anti-collision ring 2 and the floating mounting base 1, so that the two float up and down with the water depth. The anti-collision ring 2 is also sleeve-shaped and is fitted onto the outer periphery of the floating mounting base 1 and moves along the axial direction of the pier column 3 integrally with the floating collar.

[0030] The floating bridge pier anti-collision device provided by this utility model is a movable anti-collision device, installed on the outer periphery of the bridge pier column 3. Its engagement method is movable, replacing the design where it is completely fixed to the bridge pier after installation. The structure mainly includes two parts: a floating mounting base 1 that movably engages with the bridge pier and an outer anti-collision ring 2. The floating mounting base 1 is equipped with float rings 1-2. This structure has a relatively large volume and is preferably made of hollow or lightweight materials to provide greater buoyancy. The buoyancy can offset the overall weight of the floating mounting base 1 and the anti-collision ring 2, allowing the floating bridge pier anti-collision device to maintain its position. The device can float up and down with changes in water level, ensuring that the anti-collision device always maintains a suitable protective position. The anti-collision device will not fail to protect the bridge pier due to large fluctuations in water level. In addition, the size of the buoy ring 1-2, or the buoyancy it can provide, matches the overall size and weight of the anti-collision device, ensuring the effectiveness of floating. Moreover, given its floating characteristics, it can use an anti-collision structure with the smallest possible protection height / width, which can minimize the weight, save materials, and reduce the cost of the device. In summary, this design effectively solves the technical problem that existing bridge pier anti-collision devices are difficult to adapt to changes in water level.

[0031] In this embodiment, the floating mounting base 1 includes a mounting collar 1-1. The mounting collar 1-1 and the float collar 1-2 are located at opposite ends of the floating mounting base 1 along the axial direction of the pier column 3. Multiple roller structures 1-3 are evenly distributed along the circumference of the inner edges of both the mounting collar 1-1 and the floating collar, providing the floating mounting base 1 with the freedom to slide up and down along the pier column 3. This design optimizes the structure of the floating mounting base 1, making it more adaptable to sliding up and down along the pier height. Specifically, it includes two ring-shaped structures: the upper mounting collar 1-1 and the lower float collar 1-2. Roller structures 1-3 are provided on the inner edges of both collar structures to form a sliding support with the outer circumference of the pier.

[0032] In this embodiment, the roller structure 1-3 includes a roller seat fixedly mounted to the inner edge surfaces of the mounting collar 1-1 and the pontoon collar 1-2, and a roller rotatably mounted on the roller seat. The circumferential surface of the roller is in contact with the outer circumferential surface of the pier column 3. This design optimizes the roller structure 1-3, comprising a roller seat and a roller. The roller seat is fixedly mounted to the inner edge surfaces of the mounting collar 1-1 and the pontoon collar 1-2, and the roller is rotatably mounted on the roller. This design is simple in structure and provides good mobility and support.

[0033] In the technical solution of this embodiment, the anti-collision ring 2 includes a supporting inner ring 2-1 and an anti-collision outer ring 2-2. An elastic support component is provided between the anti-collision outer ring 2-2 and the supporting inner ring 2-1 to bear and transmit the stress caused by the impact and provide elastic shock absorption support between the two. The elastic support component includes a plurality of elastic support platforms 2-3 densely distributed between the inner circumferential surface of the anti-collision outer ring 2-2 and the outer circumferential surface of the supporting inner ring 2-1. The supporting inner ring 2-1 is connected between the mounting collar 1-1 and the float collar 1-2 of the floating mounting base 1.

[0034] This design provides a preferred structure for the anti-collision ring 2, which includes two ring structures, an inner and an outer one, with an elastic support component between them. This structure maintains the rigidity and durability of the anti-collision ring 2 while ensuring good overall elasticity to guarantee the anti-collision effect. The inner ring structure facilitates cooperation with the floating mounting base 1. Multiple elastic support platforms 2-3 are evenly distributed between the outer anti-collision ring 2-2 and the inner support ring 2-1. This mechanism distributes the support stress and ensures the shock absorption effect.

[0035] In this embodiment, the elastic support platform 2-3 includes two mounting seats 2-3-1 located at both ends and a damping spring 2-3-2 connected between the two mounting seats 2-3-1. The two mounting seats 2-3-1 are respectively used for mounting and fixing to the inner circumferential surface of the anti-collision outer ring 2-2 and the outer circumferential surface of the support inner ring 2-1. This design optimizes the structural design of the elastic support platform 2-3. The main structure includes mounting seats 2-3-1 fixed to the two side rings respectively, and a damping spring 2-3-2 connected between the two mounting seats 2-3-1, providing elastic support through the damping spring 2-3-2.

[0036] In this embodiment, the elastic support platform 2-3 further includes an elastic ring 2-3-3. Both mounting bases 2-3-1 are provided with through holes 2-3-4 penetrating their sides. The through holes 2-3-4 are perpendicular to the length direction of the damping spring 2-3-2. The elastic ring 2-3-3 is installed through the through holes 2-3-4 of each of the two mounting bases 2-3-1 to enhance the supporting elasticity of the damping spring 2-3-2. This design provides a further optimized elastic support platform 2-3 design. Based on the structure of the damping spring 2-3-2, an elastic ring 2-3-3 structure connected to the mounting bases 2-3-1 at both ends is added. The elastic ring 2-3-3 structure is connected to the mounting bases 2-3-1 through the through holes 2-3-4, further improving the elasticity of the connection. The elastic ring 2-3-3 structure compensates for the shortcomings of spring support, providing not only support under compression but also tensile elasticity.

[0037] In this embodiment, a plurality of roller mechanisms 1-4 evenly distributed along the circumference are provided between the mounting collar 1-1 and the float collar 1-2. Each roller mechanism 1-4 includes a fixed shaft and a bushing rotatably connected to the outer circumference of the fixed shaft. The two ends of the fixed shaft are respectively attached to the outer surfaces of the bushings of the mounting collar 1-1 and the float collar 1-2, supporting the inner surface of the inner ring 2-1, allowing the anti-collision ring 2 to be rotatably connected to the floating mounting base 1. This design further optimizes the overall structural design of the device, providing a cooperative structural design between the floating mounting base 1 and the anti-collision ring 2. The roller mechanism 1-4 provides rotatable support between the floating mounting base 1 and the supporting inner ring 2-1. With this structure, when the anti-collision ring 2 is impacted, it can rotate relative to the pier column 3 to transfer and transmit the impact force. This not only prevents irreversible deformation of the device under impact but also guides the direction of impact on the ship or other objects through the rotation of the anti-collision structure, reducing damage to the ship from the impact.

[0038] In this embodiment, the mounting collar 1-1, the float collar 1-2, the inner support ring 2-1, and the outer anti-collision ring 2-2 are each composed of three or more arc-shaped splicing parts connected together to form a complete annular structure. This design optimizes the design of each annular structure in the above-mentioned design by using split arc-shaped splicing parts. Multiple arc-shaped parts are spliced ​​together to form a complete annular overall structure. Therefore, if irreversible deformation or other damage occurs in some parts of the structure, only the damaged parts need to be replaced, greatly reducing the practical cost of the device.

[0039] In this embodiment, both ends of the arc-shaped splicing component are provided with a concave-convex fitting installation structure 4 to enhance the splicing and fixing strength. This design is a further optimization based on the above design concept. The concave-convex fitting installation structure 4 is provided at both ends of the arc-shaped splicing component used for splicing, which facilitates docking operation and improves the strength of the device after assembly.

[0040] In the technical solution provided in this embodiment, the outer anti-collision ring 2-2 is a hollow shell structure densely filled with elastic support rods 2-4, the length direction of which is parallel to the length direction of the bridge pier column 3. This design provides a preferred structural design for the outer anti-collision ring 2-2, providing more stable and effective elastic support through the internally filled elastic support rods 2-4. Although this disclosure is as described above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A bridge pier anti-collision device, characterized in that, It includes a crash ring (2) and a floating mounting base (1). The floating mounting base (1) is sleeve-shaped and can be slidably fitted onto the outer periphery of the pier column (3) to be protected. The floating mounting base (1) is provided with a float ring (1-2) to provide buoyancy to support the crash ring (2) and the floating mounting base (1), so that the two float up and down with the water depth. The crash ring (2) is also sleeve-shaped and is fitted onto the outer periphery of the floating mounting base (1) and moves along the axial direction of the pier column (3) as an integral part of the float ring (1-2).

2. The bridge pier anti-collision device according to claim 1, characterized in that, The floating mounting base (1) includes a mounting collar (1-1). The mounting collar (1-1) and the float collar (1-2) are located at the two ends of the floating mounting base (1) along the axial direction of the pier column (3). The inner edges of the mounting collar (1-1) and the floating collar are evenly distributed with multiple roller structures (1-3) along the circumference to provide the floating mounting base (1) with the freedom to slide up and down along the pier column (3).

3. The bridge pier anti-collision device according to claim 2, characterized in that, The roller structure (1-3) includes a roller seat that is fixed to the inner edge of the mounting collar (1-1) and the pontoon collar (1-2) and a roller that is rotatably mounted on the roller seat, the circumferential surface of the roller being in contact with the outer circumferential surface of the pier column (3).

4. The bridge pier anti-collision device according to claim 2, characterized in that, The anti-collision ring (2) includes a supporting inner ring (2-1) and an anti-collision outer ring (2-2). An elastic support assembly is provided between the anti-collision outer ring (2-2) and the supporting inner ring (2-1) to bear the stress caused by the impact and provide elastic shock absorption support between them. The elastic support assembly includes a plurality of elastic support platforms (2-3) densely distributed between the inner circumferential surface of the anti-collision outer ring (2-2) and the outer circumferential surface of the supporting inner ring (2-1). The supporting inner ring (2-1) is connected between the mounting collar (1-1) and the float collar (1-2) of the floating mounting base (1).

5. The bridge pier anti-collision device according to claim 4, characterized in that, The elastic support platform (2-3) includes two mounting seats (2-3-1) located at both ends thereon and a shock-absorbing spring (2-3-2) connected between the two mounting seats (2-3-1). The two mounting seats (2-3-1) are respectively used to install and fix to the inner circumferential surface of the anti-collision outer ring (2-2) and the outer circumferential surface of the support inner ring (2-1).

6. The bridge pier anti-collision device according to claim 5, characterized in that, The elastic support platform (2-3) also includes an elastic ring (2-3-3). Both mounting bases (2-3-1) are provided with through holes (2-3-4) penetrating their sides. The through holes (2-3-4) are perpendicular to the length direction of the damping spring (2-3-2). The elastic ring (2-3-3) is installed through the through holes (2-3-4) of the two mounting bases (2-3-1) to enhance the supporting elasticity of the damping spring (2-3-2).

7. The bridge pier anti-collision device according to any one of claims 4-6, characterized in that, A plurality of roller mechanisms (1-4) evenly distributed along the circumference are provided between the mounting collar (1-1) and the float collar (1-2). The roller mechanism (1-4) includes a fixed shaft and a bushing rotatably connected to the outer circumference of the fixed shaft. The two ends of the fixed shaft are fixedly connected to the mounting collar (1-1) and the float collar (1-2) respectively. The outer side of the bushing is in contact with the inner side of the support inner ring (2-1), so that the anti-collision ring (2) is rotatably connected to the floating mounting seat (1).

8. The bridge pier anti-collision device according to claim 7, characterized in that, The mounting collar (1-1), the float collar (1-2), the inner support ring (2-1), and the outer anti-collision ring (2-2) are each composed of three or more arc-shaped splicing parts spliced ​​together to form a complete circular structure.

9. The bridge pier anti-collision device according to claim 8, characterized in that, The two ends of the arc-shaped splice are provided with a concave-convex interlocking installation structure (4) to enhance the splicing and fixing strength.

10. The bridge pier anti-collision device according to claim 7, characterized in that, The outer anti-collision ring (2-2) is a hollow shell structure with densely filled elastic support rods (2-4). The length direction of the elastic support rods (2-4) is parallel to the length direction of the bridge pier column (3).

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