A passive collision avoidance device for bridges using energy-absorbing rubber blocks and its construction method

Abstract

This application relates to an energy-absorbing rubber block passive anti-collision device for bridges and its construction method, belonging to the technical field of anti-collision device technology. An energy-absorbing rubber block passive anti-collision device for bridges includes anti-collision molds for covering bridge piers, adjacent anti-collision molds being connected to cover the tie beams between adjacent piers, and a portion of the anti-collision molds being exposed above the water surface; the sidewalls of the anti-collision molds are provided with several sets of buffer blocks at intervals. This application has the effect of reducing the recurrence of bridge collapse accidents caused by ship collisions.

Description

Technical Field

[0001] This application relates to the field of collision avoidance facilities technology, and in particular to an energy-absorbing rubber block passive collision avoidance facility for bridges and its construction method. Background Technology

[0002] A bridge is generally a structure erected over rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. It mainly consists of a superstructure, substructure, supports, and auxiliary structures. The superstructure, also known as the bridge span structure, is the main structure that crosses obstacles. The substructure includes abutments, piers, and tie beams.

[0003] Many bridges, when designed and constructed, lacked collision protection facilities due to the underdeveloped shipping economy and the absence of mandatory regulations. Furthermore, as bridges age, their impact resistance decreases, making them susceptible to collapse, beam breakage, and other safety accidents if struck by an out-of-control vessel. Therefore, effectively preventing bridge collapses caused by ship collisions has become a significant challenge. Summary of the Invention

[0004] In order to reduce the recurrence of bridge collapse accidents caused by ship collisions, this application provides an energy-absorbing rubber block bridge passive collision protection device and its construction method.

[0005] Firstly, the energy-absorbing rubber block bridge passive anti-collision facility provided in this application adopts the following technical solution:

[0006] A passive anti-collision facility for bridges using energy-absorbing rubber blocks includes anti-collision molds for covering bridge piers, adjacent anti-collision molds being connected to cover the tie beams between adjacent bridge piers, and a portion of the anti-collision molds being exposed above the water surface; the sidewalls of the anti-collision molds are provided with several sets of anti-collision blocks for buffering.

[0007] By adopting the above technical solutions, both the anti-collision mold and the anti-collision block are used to absorb the impact force of the ship hitting the bridge pier. The anti-collision mold and the anti-collision block deform upon impact to absorb kinetic energy, thereby reducing the rigid collision between the ship and the bridge pier, and thus reducing the recurrence of bridge collapse accidents caused by ship collisions. When the ship's impact force is too large and exceeds the deformation range of the anti-collision mold and the anti-collision block, the overall structure of the anti-collision mold and the anti-collision block will be destroyed and separated from the bridge pier. Due to the inertia of the anti-collision mold and the anti-collision block themselves, they have a certain speed, and finally, under the resistance of water flow, the impact force of the ship is dissipated.

[0008] Preferably, the anti-collision mold includes an inner skin, an energy-absorbing lattice, and an outer skin; the inner skin is disposed on the pier and covers the tie beam; the energy-absorbing lattice is disposed on the side wall of the inner skin away from the pier, and the outer skin is disposed on the side wall of the energy-absorbing lattice away from the inner skin.

[0009] By adopting the above technical solutions, the inner skin, energy-absorbing lattice and outer skin have the characteristics of buffering and absorbing energy, corrosion resistance, fatigue resistance, high plasticity, light weight and easy replacement. Moreover, the inner skin, energy-absorbing lattice and outer skin can absorb a large amount of kinetic energy through deformation to reduce the impact force between the ship and the bridge pier.

[0010] Preferably, each of the adjacent anti-collision mold ends is provided with a connecting plate, which is connected to the inner skin, the energy-absorbing lattice and the outer skin; each connecting plate is provided with several sets of connecting rods, and each connecting rod end is provided with a snap-fit ​​ball; the connecting plate is provided with a connecting groove for the connecting rod to abut, and the inner sidewall of the connecting groove is provided with a snap-fit ​​groove for the snap-fit ​​ball to abut.

[0011] By adopting the above technical solution, the connecting plates at the ends of adjacent anti-collision molds are brought close to each other. Through compression, the snap-fit ​​ball on the connecting rod is pushed into the snap-fit ​​groove through the connecting groove. The side wall of the snap-fit ​​ball abuts against the inner side wall of the snap-fit ​​groove, thereby realizing the rapid connection of adjacent anti-collision molds. This enables the covering of the tie beam between the bridge piers, reducing the phenomenon of bridge collapse caused by ship collisions with the tie beam.

[0012] Preferably, the anti-collision block includes a mounting cylinder, an energy-absorbing block, and several sets of energy-absorbing balls; the mounting cylinder is disposed on the side wall of the outer skin away from the energy-absorbing lattice, and the outer diameter of the mounting cylinder gradually decreases in the direction away from the outer skin; the energy-absorbing block and all the energy-absorbing balls are disposed on the inner side wall of the mounting cylinder, the energy-absorbing block is located at the end of the mounting cylinder away from the outer skin, and all the energy-absorbing balls are distributed at intervals along the circumference of the mounting cylinder.

[0013] By adopting the above technical solution, the anti-collision block has a thicker anti-collision mold during the collision between the bridge pier and the ship, so as to buffer and absorb the impact force. In addition, the mounting cylinder, energy-absorbing block and energy-absorbing ball are subjected to impact force and deform and recover, thus realizing the function of energy absorption and buffering. The energy-absorbing block located at the top of the mounting cylinder can absorb the impact force in the first time, reducing the hard collision between the top of the mounting cylinder and the ship. The energy-absorbing ball located around the mounting cylinder can absorb the diffused impact force, thereby improving the energy absorption and buffering effect of the anti-collision block.

[0014] Preferably, the outer skin has several sets of mounting protrusions on the sidewall facing away from the energy-absorbing lattice. The mounting protrusions and mounting cylinders are arranged in a one-to-one correspondence, and the outer sidewall of each mounting protrusion abuts against the energy-absorbing ball inside the corresponding mounting cylinder. Each energy-absorbing block has a mounting bolt on the sidewall facing the outer skin, and each mounting protrusion has a mounting hole on its endwall for the mounting bolt to abut.

[0015] By adopting the above technical solution, the mounting bolts are aligned with the mounting holes, and the mounting cylinder is rotated. The mounting bolts are threaded into the inner wall of the mounting holes, achieving a quick connection between the mounting cylinder and the mounting protrusion. At the same time, when individual anti-collision blocks are damaged, the damaged anti-collision blocks can be quickly disassembled by unscrewing the mounting cylinder, thus facilitating the quick disassembly and replacement of the anti-collision blocks. In addition, the mounting protrusion can support the mounting cylinder, increasing the connection stability between the anti-collision blocks and the anti-collision mold.

[0016] Preferably, the outer skin has several sets of reflectors for warning purposes spaced apart on the sidewalls opposite to the energy-absorbing lattice.

[0017] By adopting the above technical solution, reflective panels are used to reflect light, alerting ship drivers passing by the bridge piers to avoid the bridge in time, thereby reducing the recurrence of bridge collapse accidents caused by ship collisions.

[0018] Preferably, the inner skin has several sets of guide blocks on its sidewall facing the pier, and the pier has several sets of guide rods on its sidewall; the length direction of all the guide rods is parallel to the height direction of the pier, and each guide rod passes through a guide block, so that the anti-collision mold slides along the length direction of the guide rod; the inner skin has a drive block on its sidewall, and a drive screw is rotatably mounted on the pier along the height direction, the drive screw passes through the drive block, and the drive screw is threadedly connected to the drive block; the pier is equipped with a drive motor for driving the drive screw to rotate.

[0019] By adopting the above technical solution, the drive motor drives the drive screw to rotate. The drive screw is driven by the drive block through a threaded transmission to drive the anti-collision mold to move along the height direction of the pier under the guidance of the guide rod, so as to adjust the distance between the anti-collision mold and the water surface, thereby enabling the anti-collision mold to prevent ships at different water levels from colliding with it.

[0020] Preferably, the energy-absorbing lattice is provided with several sets of anti-detachment ropes, and the end of each anti-detachment rope away from the energy-absorbing lattice is connected to the bridge pier.

[0021] By adopting the above technical solution, when the impact force of the ship is too large, causing the anti-collision mold to be damaged and detached from the pier, the anti-detachment rope can confine the damaged anti-collision mold to the area around the pier, reducing the impact of the damaged anti-collision mold being scattered in all directions by the water flow or impact force. On the one hand, it reduces the impact of the damaged anti-collision mold on the natural environment, and on the other hand, it facilitates the recycling and reuse of the damaged anti-collision mold, reducing the waste of resources.

[0022] Preferably, the anti-detachment rope includes two sets of connectors, an elastic rope, and an extension rope; one set of connectors is disposed on the energy-absorbing lattice, and the other set of connectors is disposed on the bridge pier; the elastic rope and the extension rope are disposed between the two sets of connectors, and the extension rope is spirally wound around the elastic rope.

[0023] By adopting the above technical solution, when the anti-collision mold is subjected to a large impact force and detaches from the bridge pier, the elastic rope and extension rope are affected by the impact force and deform and contract, thereby absorbing kinetic energy to buffer the fast-moving anti-collision mold. In addition, when the impact force exceeds the deformation range of the elastic rope and the elastic rope breaks, the spiral extension rope can extend, increasing the overall length of the anti-detachment rope and providing more buffer movement space for the anti-collision mold, reducing the phenomenon of the anti-collision mold being scattered and lost due to the complete breakage of the anti-detachment rope.

[0024] Secondly, the construction method of an energy-absorbing rubber block bridge passive anti-collision facility provided in this application includes the following steps:

[0025] First, the anti-collision molds are installed on each group of bridge piers; then the anti-collision molds on adjacent bridge piers are connected and the tie beams are covered; finally, the anti-collision blocks and reflectors are installed.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up anti-collision molds and anti-collision blocks to absorb the impact force of ships hitting bridge piers, and by utilizing the deformation of the anti-collision molds and anti-collision blocks upon impact to absorb kinetic energy, the rigid collision between ships and bridge piers is reduced, thereby reducing the recurrence of bridge collapse accidents caused by ship collisions.

[0028] 2. During the collision between the bridge pier and the ship, the thickness of the anti-collision mold was further increased by setting anti-collision blocks to facilitate the buffering and absorption of the impact force;

[0029] 3. By setting a drive motor to drive the drive screw to rotate, the drive screw is driven by the drive block through a threaded transmission to drive the anti-collision mold to move along the height direction of the pier under the guidance of the guide rod, so as to adjust the distance between the anti-collision mold and the water surface, thereby enabling the anti-collision mold to prevent ships at different water levels from colliding with it. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of an energy-absorbing rubber block bridge passive anti-collision facility according to Embodiment 1 of this application.

[0031] Figure 2 This is a structural schematic diagram used to illustrate the positional relationship between the anti-collision mold and the connecting plate in Embodiment 1.

[0032] Figure 3 This is a cross-sectional schematic diagram used to illustrate the internal structure of the anti-collision mold and connecting plate in Embodiment 1.

[0033] Figure 4 This is a cross-sectional schematic diagram used to illustrate the internal structure of the anti-collision mold and anti-collision block in Embodiment 1.

[0034] Figure 5 This is a structural schematic diagram illustrating the connection between the anti-collision mold and the bridge pier in Embodiment 2.

[0035] Figure 6 This is a structural diagram illustrating the connection relationship between the drive screw, guide rod, and anti-collision mold in Embodiment 2.

[0036] Figure 7 This is a schematic diagram illustrating the anti-detachment rope structure in Example 2.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Anti-collision mold; 10. Pier; 101. Tie beam; 11. Inner skin; 111. Guide block; 112. Drive block; 12. Energy-absorbing lattice; 13. Outer skin; 131. Mounting protrusion; 132. Mounting hole; 133. Reflector; 2. Anti-collision block; 21. Mounting cylinder; 22. Energy-absorbing block; 221. Mounting bolt; 23. Energy-absorbing ball; 3. Connecting plate; 31. Connecting rod; 312. Snap-fit ​​ball; 32. Connecting groove; 321. Snap-fit ​​groove; 4. Guide rod; 5. Drive screw; 51. Drive motor; 6. Anti-detachment rope; 61. Connector; 62. Elastic rope; 63. Extension rope. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0040] This application discloses an energy-absorbing rubber block bridge passive collision protection device to reduce the recurrence of bridge collapse accidents caused by ship collisions.

[0041] Example 1:

[0042] Reference Figure 1 and Figure 2 A passive anti-collision device for bridges using energy-absorbing rubber blocks includes an anti-collision mold 1 installed on a bridge pier 10. The anti-collision molds 1 on adjacent bridge piers 10 are centrally symmetrical to each other, and the ends of the anti-collision molds 1 on adjacent bridge piers 10 are connected to each other to cover the tie beam 101 between adjacent bridge piers 10. In this embodiment, the upper part of the anti-collision mold 1 is exposed above the water surface.

[0043] Reference Figure 1 , Figure 2 and Figure 3The anti-collision mold 1 includes an inner skin 11, an energy-absorbing lattice 12, and an outer skin 13. In this embodiment, the anti-collision mold 1 can be made of a composite material with low elastic modulus, high impact toughness, corrosion resistance, fatigue resistance, and high plasticity, and the overall thickness of the anti-collision mold 1 is at least 50 cm. The sidewall of the pier 10 is pre-anchored with steel plate clips so that the inner skin 11 is fixedly connected to the pier 10 through the steel plate clips, and the inner skin 11 covers the tie beam 101. The energy-absorbing lattice 12 is fixedly connected to the sidewall of the inner skin 11 away from the pier 10, and the outer skin 13 is fixedly connected to the sidewall of the energy-absorbing lattice 12 away from the inner skin 11.

[0044] Reference Figure 1 and Figure 3 Each of the adjacent anti-collision molds 1 on the piers 10 has a connecting plate 3 fixedly connected to its close end. The connecting plate 3 is also fixedly connected to the corresponding inner skin 11, energy-absorbing lattice 12, and outer skin 13. Several sets of connecting rods 31 are fixedly connected to the side wall of each set of connecting plates 3. In this embodiment, the connecting rods 31 can be made of rubber with good toughness, and all the connecting rods 31 are spaced apart along the length of the connecting plate 3.

[0045] Reference Figure 1 and Figure 3 The connecting plates 3 at the ends of the anti-collision molds 1 on adjacent piers 10 abut against each other, and each set of connecting plates 3 has a connecting groove 32 on its side wall for the connecting rods 31 on the connecting plate 3 to abut against. Each set of connecting rods 31 has a snap-fit ​​ball 312 fixedly connected to its end. In this embodiment, the snap-fit ​​ball 312 can be made of rubber with good plasticity and toughness. Each set of connecting grooves 32 has a snap-fit ​​groove 321 on its inner side wall for the snap-fit ​​ball 312 to abut against.

[0046] Reference Figure 1 and Figure 3 The ends of the anti-collision molds 1 on adjacent piers 10 are brought closer together. The connecting rod 31 and the locking ball 312 on the connecting plate 3 of one set of anti-collision molds 1 are gradually inserted into the connecting groove 32 of the connecting plate 3 on the other set of anti-collision molds 1. The locking ball 312 deforms and contracts under pressure, following the connecting rod 31 into the connecting groove 32. The locking ball 312 gradually inserts into the locking groove 321 along the length of the connecting groove 32. At this point, the locking ball 312 returns to its original shape, so that its sidewall abuts against the locking groove 321, thereby achieving the locking and fixing of adjacent anti-collision molds 1.

[0047] Reference Figure 1 and Figure 4The outer skin 13 has several sets of anti-collision blocks 2 installed at intervals on the side walls of the energy-absorbing lattice 12. In this embodiment, the anti-collision blocks 2 can be made of rubber that is easily deformable and has good toughness. The anti-collision block 2 includes a mounting cylinder 21, an energy-absorbing block 22, and several sets of energy-absorbing balls 23. In this embodiment, the mounting cylinder 21 is a hollow cylindrical structure with one end closed and the other end open.

[0048] Reference Figure 1 and Figure 4 The outer skin 13 is fixedly connected to several sets of mounting protrusions 131 on the side wall away from the energy-absorbing lattice 12, and all the mounting protrusions 131 and mounting cylinders 21 are arranged in a one-to-one correspondence. In this embodiment, the outer diameter of the mounting protrusions 131 and the mounting cylinders 21 gradually decreases along the direction away from the outer skin 13, and the mounting protrusions 131 and the mounting cylinders 21 are adapted to each other so that the mounting cylinders 21 are snapped onto the outside of the corresponding mounting protrusions 131.

[0049] Reference Figure 1 and Figure 4 In this embodiment, both the energy-absorbing block 22 and the energy-absorbing ball 23 have a honeycomb structure to facilitate deformation and energy absorption. The energy-absorbing block 22 and the energy-absorbing ball 23 are fixedly connected to the inside of the corresponding mounting cylinder 21. The energy-absorbing block 22 is located at the end of the mounting cylinder 21 away from the outer skin 13, and the energy-absorbing ball 23 is located on the peripheral wall of the mounting cylinder 21. All the energy-absorbing balls 23 are distributed at intervals along the circumference of the mounting cylinder 21, and the sidewall of each set of mounting protrusions 131 abuts against the sidewall of the energy-absorbing ball 23.

[0050] Reference Figure 1 and Figure 4 Each set of energy-absorbing blocks 22 has a mounting bolt 221 fixedly connected to the side wall facing the outer skin 13 by a steel plate. Each set of mounting protrusions 131 has a mounting hole 132 at the end away from the outer skin 13 for the mounting bolt 221 to abut. In this embodiment, the mounting hole 132 is a threaded hole.

[0051] Reference Figure 1 and Figure 4 Align the mounting bolt 221 of the mounting cylinder 21 with the mounting hole 132 on the corresponding mounting protrusion 131, and rotate the mounting cylinder 21 so that the mounting bolt 221 is threadedly connected to the mounting hole 132. Finally, the mounting protrusion 131 abuts against the energy-absorbing block 22 and the energy-absorbing ball 23 to achieve a fixed connection between the anti-collision block 2 and the outer skin 13.

[0052] Reference Figure 1 and Figure 2 Several sets of reflectors 133 are fixedly connected to the side wall of the outer skin 13 away from the energy-absorbing lattice 12 by screws. All reflectors 133 are distributed at intervals on the outer skin 13. By reflecting light, they are used to remind passing ships around the pier 10 to give way.

[0053] The implementation principle of the energy-absorbing rubber block bridge passive anti-collision device of this application is as follows:

[0054] When an out-of-control vessel collides with the anti-collision mold 1, the anti-collision mold 1 itself is subjected to the impact force, and the inner skin 11 and outer skin 13 undergo significant macroscopic bending deformation. The energy-absorbing lattice 12 undergoes large torsional deformation, and the anti-collision block 2 is also deformed under the influence of the impact force. During the process of the above deformation, the force is transmitted to the overall structure of the anti-collision facility and gradually recovers the deformation, so as to absorb the impact force between the vessel and the bridge pier 10 as much as possible on the anti-collision mold 1, thereby achieving buffering and energy absorption for the vessel and the bridge, and reducing the recurrence of bridge collapse accidents caused by vessel collisions.

[0055] Embodiment 1 of this application also discloses a construction method for an energy-absorbing rubber block bridge passive anti-collision facility, including the following steps:

[0056] First, the anti-collision mold 1 is installed on each group of bridge piers 10. Then, the anti-collision molds 1 on adjacent bridge piers 10 are snapped together and fixed so that the anti-collision mold 1 covers the tie beam 101. Then, the anti-collision block 2 is fixedly connected to the anti-collision mold 1 by the threaded connection of the mounting protrusion 131 and the mounting bolt 221. Finally, the reflector 133 is fixedly installed on the anti-collision mold 1.

[0057] Example 2:

[0058] The difference between Embodiment 2 and Embodiment 1 of this application is that: (Refer to...) Figure 5 and Figure 6 Several sets of guide blocks 111 are fixedly connected to the side wall of the inner skin 11 facing the pier 10. Several sets of guide rods 4 are welded and fixed to the side wall of the pier 10. The length direction of all guide rods 4 is parallel to the height direction of the pier 10. Each set of guide rods 4 passes through the guide block 111 to limit the anti-collision mold 1 from sliding along the length direction of the guide rod 4.

[0059] Reference Figure 5 and Figure 6 A drive block 112 is fixedly connected to the side wall of the inner skin 11 facing the pier 10. A drive screw 5 is welded and fixed to the side wall of the pier 10, and the drive block 112 and the drive screw 5 are arranged in a one-to-one correspondence. The length direction of all drive screws 5 is parallel to the length direction of the guide rod 4. Each set of drive screws 5 passes through the corresponding drive block 112, and each set of drive screws 5 is threadedly connected to the corresponding drive block 112. A drive motor 51 is fixedly installed on the pier 10. In this embodiment, the output end of the drive motor 51 is connected to the end of the drive screw 5 so that the output end of the drive motor 51 can drive the drive screw 5 to rotate, thereby driving the anti-collision mold 1 to slide along the height direction of the pier 10.

[0060] Reference Figure 5 and Figure 7 Several sets of anti-detachment ropes 6 are fixedly connected to the bottom of the energy-absorbing lattice 12, and the end of each set of anti-detachment ropes 6 away from the energy-absorbing lattice 12 is fixedly connected to the pier 10. The anti-detachment rope 6 includes two sets of connectors 61, elastic ropes 62 and extension ropes 63. In this embodiment, the elastic ropes 62 and extension ropes 63 can be made of elastic rubber or nylon rope.

[0061] Reference Figure 5 and Figure 7 In this embodiment, the connector 61 is a metal plate with a metal ring. One set of connectors 61 is fixedly connected to the energy-absorbing lattice 12 by a snap fastener, and the other set of connectors 61 is fixedly connected to the pier 10 by a snap fastener. The elastic rope 62 and the extension rope 63 are both fixedly connected between the metal plates of the two sets of connectors 61, and the extension rope 63 is spirally wound around the elastic rope 62.

[0062] The implementation principle of the energy-absorbing rubber block bridge passive anti-collision device of this application is as follows:

[0063] The output end of the drive motor 51 drives the drive screw 5 to rotate. The drive screw 5 and the drive block 112 are threadedly driven so that the anti-collision mold 1 slides along the height direction of the pier 10 under the guidance of the guide rod 4, thereby realizing the adjustment of the relative position of the anti-collision mold 1 and the water surface.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A passive anti-collision device for bridges using energy-absorbing rubber blocks, characterized in that: It includes anti-collision molds (1) for covering bridge piers (10), adjacent anti-collision molds (1) are connected to cover the tie beams (101) between adjacent bridge piers (10), and a portion of the anti-collision molds (1) is exposed on the water surface; the side walls of the anti-collision molds (1) are provided with several sets of anti-collision blocks (2) for buffering. The anti-collision mold (1) includes an inner skin (11), an energy-absorbing lattice (12), and an outer skin (13); the inner skin (11) is disposed on the pier (10) and covers the tie beam (101); the energy-absorbing lattice (12) is disposed on the side wall of the inner skin (11) away from the pier (10), and the outer skin (13) is disposed on the side wall of the energy-absorbing lattice (12) away from the inner skin (11); The anti-collision block (2) includes a mounting cylinder (21), an energy-absorbing block (22), and several sets of energy-absorbing balls (23); the mounting cylinder (21) is located on the side wall of the outer skin (13) away from the energy-absorbing lattice (12), and the outer diameter of the mounting cylinder (21) gradually decreases in the direction away from the outer skin (13); the energy-absorbing block (22) and all the energy-absorbing balls (23) are located on the inner side wall of the mounting cylinder (21), the energy-absorbing block (22) is located at the end of the mounting cylinder (21) away from the outer skin (13), and all the energy-absorbing balls (23) are distributed circumferentially along the mounting cylinder (21).

2. The energy-absorbing rubber block bridge passive anti-collision facility according to claim 1, characterized in that: Each of the adjacent anti-collision molds (1) is provided with a connecting plate (3) at its close end. The connecting plate (3) is connected to the inner skin (11), the energy-absorbing lattice (12), and the outer skin (13). Each connecting plate (3) is provided with several sets of connecting rods (31), and each connecting rod (31) is provided with a snap-fit ​​ball (312) at its end. The connecting plate (3) is provided with a connecting groove (32) for the connecting rod (31) to abut. The inner sidewall of the connecting groove (32) is provided with a snap-fit ​​groove (321) for the snap-fit ​​ball (312) to abut.

3. The energy-absorbing rubber block bridge passive anti-collision facility according to claim 1, characterized in that: The outer skin (13) has several sets of mounting protrusions (131) on the side wall away from the energy-absorbing lattice (12). The mounting protrusions (131) and the mounting cylinder (21) are arranged in a one-to-one correspondence. The outer side wall of each mounting protrusion (131) abuts against the energy-absorbing ball (23) inside the corresponding mounting cylinder (21). Each energy-absorbing block (22) has a mounting bolt (221) on the side wall facing the outer skin (13). The end wall of each mounting protrusion (131) has a mounting hole (132) for the mounting bolt (221) to abut.

4. The energy-absorbing rubber block bridge passive anti-collision facility according to claim 1, characterized in that: The outer skin (13) is provided with several sets of reflectors (133) at intervals on the side wall away from the energy-absorbing lattice (12) for warning purposes.

5. The energy-absorbing rubber block bridge passive anti-collision facility according to claim 1, characterized in that: The inner skin (11) has several sets of guide blocks (111) on its sidewall facing the pier (10), and the pier (10) has several sets of guide rods (4) on its sidewall. The length direction of all the guide rods (4) is parallel to the height direction of the pier (10), and each guide rod (4) passes through the guide block (111) so that the anti-collision mold (1) slides along the length direction of the guide rod (4). The inner skin (11) has a drive block (112) on its sidewall, and the pier (10) has a drive screw (5) rotatably mounted along the height direction. The drive screw (5) passes through the drive block (112), and the drive screw (5) is threadedly connected to the drive block (112). The pier (10) has a drive motor (51) for driving the drive screw (5) to rotate.

6. The energy-absorbing rubber block bridge passive anti-collision facility according to claim 1, characterized in that: The energy-absorbing lattice (12) is provided with several sets of anti-detachment ropes (6), and the end of each anti-detachment rope (6) away from the energy-absorbing lattice (12) is connected to the pier (10).

7. The energy-absorbing rubber block bridge passive anti-collision facility according to claim 6, characterized in that: The anti-detachment rope (6) includes two sets of connectors (61), an elastic rope (62), and an extension rope (63); one set of connectors (61) is set on the energy-absorbing lattice (12), and the other set of connectors (61) is set on the pier (10). The elastic rope (62) and the extension rope (63) are both set between the two sets of connectors (61), and the extension rope (63) is spirally wound around the elastic rope (62).

8. A construction method for an energy-absorbing rubber block bridge passive anti-collision facility as described in any one of claims 1-4, characterized in that: Includes the following steps: First, the anti-collision mold (1) is installed on each group of piers (10); then the anti-collision molds (1) on adjacent piers (10) are connected and the tie beam (101) is covered; finally, the anti-collision block (2) and reflector (133) are installed.

Images