Bridge pile foundation anti-collision buffer device

Abstract

The utility model relates to mechanical engineering technical field, concretely relates to a bridge pile foundation anti -collision buffer device, including main protective sheath, arc frame, the both ends fixedly connected with fixed plate of arc frame, the fixed plate middle -penetrating has the bolt, the both ends of bolt thread has nut no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, specifically to a bridge pile foundation anti-collision buffer device. Background Technology

[0002] With the rapid development of transportation, bridges, as an important part of transportation hubs, are of paramount importance in terms of safety. Bridge pile foundations, as the basic structure of bridges, often face risks such as collisions with ships and vehicles. Once the pile foundations are severely impacted, it may lead to the instability of the bridge structure and cause serious safety accidents.

[0003] Existing bridge pile foundation anti-collision devices have many shortcomings. Some devices have simple structures, rely solely on rigid materials to resist impacts, lack effective buffering mechanisms, and are difficult to effectively absorb and disperse impact energy.

[0004] Therefore, a bridge pile foundation anti-collision buffer device is proposed to solve the problems mentioned above. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a bridge pile foundation anti-collision buffer device, which can solve the problem of lack of effective buffer mechanism and difficulty in effectively absorbing and dispersing impact energy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: including a main protective sleeve and an arc-shaped frame, with fixed plates fixedly connected to both ends of the arc-shaped frame, a bolt penetrating through the middle of the fixed plate, and a nut threaded onto both ends of the bolt, a rubber pad fixedly connected to the inner side of the arc-shaped frame, and a hydraulic buffer fixedly connected to the outer side of the arc-shaped frame; A buffer plate is provided on the inner side of the main protective sleeve, and a rubber buffer column is provided between the main protective sleeve and the buffer plate. The buffer end of the hydraulic buffer is fixedly connected to the inner side of the main protective sleeve.

[0007] Preferably, the main protective sleeve is arc-shaped, and several main protective sleeves constitute an annular buffer first protective layer.

[0008] Preferably, the rubber buffer post is evenly embedded in the gap between the buffer plate and the main protective sleeve, and the axial direction of the rubber buffer post is consistent with the radial direction of the main protective sleeve.

[0009] Preferably, the buffer plate is square, and several buffer plates constitute a polygonal buffer second protective layer.

[0010] Preferably, the outer surface of the hydraulic end of the hydraulic buffer is threaded, and a second nut is screwed onto the threaded outer surface of the hydraulic end of the hydraulic buffer. The buffer plate passes through the middle of the hydraulic buffer and is fastened between the two second nuts.

[0011] Preferably, the main protective sleeve has a buffer block inside, the buffer block is hexagonal prism shaped, and several buffer blocks form a honeycomb-like buffer layer.

[0012] Preferably, the buffer block has a hollow, honeycomb-like structure inside, and a spring is provided between two buffer blocks, with both ends of the spring fixedly connected to the end faces of the two adjacent buffer blocks.

[0013] Compared with the prior art, this utility model provides a bridge pile foundation anti-collision buffer device, which has the following beneficial effects: 1. The bridge pile foundation anti-collision buffer device consists of a main protective sleeve, buffer plate, rubber buffer column and hydraulic buffer, forming a multi-level buffer to effectively reduce impact force.

[0014] 2. The bridge pile foundation anti-collision buffer device uses a honeycomb-like buffer layer composed of buffer blocks to reduce its own weight while improving its compressive strength.

[0015] 3. The anti-collision buffer device for the bridge pile foundation has a spring rebound force that can assist the buffer block in resetting, ensuring that it can withstand multiple impacts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall side view structure of this utility model; Figure 2 This is a top view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the multi-level buffer structure of this utility model; Figure 4 This is a schematic diagram of the honeycomb-like structure of this utility model; Figure 5 This is a cross-sectional view of the buffer block of this utility model.

[0017] In the diagram: 1. Main protective sleeve; 2. Buffer plate; 3. Rubber buffer column; 4. Fixing plate; 5. Bolt; 6. Nut 1; 7. Rubber pad; 9. Arc frame; 11. Hydraulic buffer; 12. Nut 2; 13. Buffer block; 14. Spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Please see Figure 1 - Figure 5 A bridge pile foundation anti-collision buffer device in this embodiment includes a main protective sleeve 1 and an arc frame 9. The arc frame 9 is fixedly connected to both ends with a fixing plate 4. A bolt 5 passes through the middle of the fixing plate 4. Nuts 6 are screwed into both ends of the bolt 5. A rubber pad 7 is fixedly connected to the inner side of the arc frame 9. A hydraulic buffer 11 is fixedly connected to the outer side of the arc frame 9. A buffer plate 2 is provided on the inner side of the main protective sleeve 1, and a rubber buffer column 3 is provided between the main protective sleeve 1 and the buffer plate 2. The buffer end of the hydraulic buffer 11 is fixedly connected to the inner side of the main protective sleeve 1. When protecting the pile foundation, the arc frame 9 is spliced ​​into a ring by the bolts 5 of the fixing plate 4, and after being fitted into the pile foundation, the concentricity is adjusted and the nut 6 is tightened to adapt to pile foundations of different diameters. The main protective sleeve 1 is made of Q355B low alloy high strength steel, which has high strength and good toughness and strong impact deformation resistance. When a ship or vehicle hits the main protective sleeve 1, the main protective sleeve 1 is subjected to force and squeezes the rubber buffer column 3. The rubber buffer column 3 absorbs the energy generated by the impact through elastic deformation. When a certain degree is reached, the hydraulic buffer 11 begins to play its role. The hydraulic buffer 11 is filled with hydraulic oil and other working media, and has piston, valve and other structures. When subjected to external force, the piston will move in the cylinder and the hydraulic oil will be forced through a specific channel or valve. When the hydraulic oil passes through the channel or valve, a certain resistance will be generated. The energy generated by the impact is converted into the work done by the hydraulic oil to overcome the resistance when it flows, thereby realizing the absorption of energy. As the impact force gradually weakens, the piston inside the hydraulic buffer 11 gradually returns to its initial position under the action of the reset mechanism. The hydraulic oil also gradually flows back to the original chamber under the action of the pressure difference. At the same time, the main protective sleeve 1 will also undergo a certain deformation, thereby reducing the energy generated by the impact. The buffer plate 2 is made of ZGMn13 high manganese steel. The buffer plate 2 directly bears the force transmitted from the inner side, disperses the stress, and avoids local deformation of the main protective sleeve 1. After multiple stages of buffering, the force transmitted to the arc frame 9 is evenly distributed to the pile foundation surface through the rubber pad 7. The rubber pad 7 can reduce local pressure and prevent the pile foundation concrete from cracking.

[0020] The main protective sleeve 1 is arc-shaped, and several main protective sleeves 1 form an annular buffer first protective layer; The rubber buffer column 3 is evenly embedded in the gap between the buffer plate 2 and the main protective sleeve 1, and the axial direction of the rubber buffer column 3 is consistent with the radial direction of the main protective sleeve 1. The buffer plate 2 is square, and several buffer plates 2 form a polygonal buffer second protective layer; The hydraulic buffer 11 has a thread on the outer surface of the hydraulic end, and a nut 12 is screwed into the thread on the outer surface of the hydraulic end of the hydraulic buffer 11. The buffer plate 2 passes through the middle of the hydraulic buffer 11 and is fastened between the two nuts 12. When an impact force is applied to the main protective sleeve 1, the main protective sleeve 1 is the first to be stressed. Through its curved surface, the force originally concentrated at the impact point is dispersed to both sides along the tangential direction. The main protective sleeve 1 not only resists deformation through its own toughness, but also simultaneously transmits the dispersed force inward, acting on the inner rubber buffer column 3 and hydraulic buffer 11 respectively. The rubber buffer column 3 is compressed and absorbs part of the energy through elastic deformation. After the main protective sleeve 1 is stressed, it pushes the piston rod of the hydraulic buffer 11. The oil inside the hydraulic buffer 11 flows through the damping hole to generate resistance, which can intervene to buffer before the impact force reaches its peak, effectively preventing the impact force from being suddenly transmitted to the inner structure. The remaining force is transmitted to the buffer plate 2, which distributes the force evenly again, avoiding structural damage caused by local stress concentration. Then, the force is smoothly transmitted to the arc frame 9. Finally, the force after multi-stage buffering is transmitted to the pile foundation through the arc frame 9 and the rubber pad 7. The multi-stage buffer structure works together to dissipate the instantaneous impact force through flexible materials and stabilize the force transmission path through rigid components, ultimately achieving all-round protection for the pile foundation.

[0021] The main protective sleeve 1 is provided with a buffer block 13 inside. The buffer block 13 is hexagonal prism, and several buffer blocks 13 form a honeycomb-like buffer layer. The buffer block 13 has a hollow honeycomb-like structure inside, and a spring 14 is provided between two buffer blocks 13. The two ends of the spring 14 are fixedly connected to the end faces of the two adjacent buffer blocks 13. The buffer block 13 is made of high-density polyethylene. High-density polyethylene has sufficient rigidity to resist deformation under minor impacts and ensure structural stability, while also possessing excellent toughness. It is not easily brittle under strong impact and can absorb energy through its own deformation. The hexagonal structure allows adjacent buffer blocks 13 to fit perfectly together through their sides, forming a tightly arranged honeycomb-like buffer layer. When local force is applied, the force can be quickly transferred to multiple surrounding buffer blocks 13 through side contact, effectively dispersing local stress and preventing damage to a single buffer block 13 due to overload. The hollow honeycomb structure inside the buffer block 13 reduces its weight while improving its compressive strength. The internal cavity of the buffer block 13 can also be filled with high-density polyurethane foam to increase elastic recovery. The main protective sleeve 1 transfers the force to the internal honeycomb-like buffer layer. The hexagonal prism-shaped buffer blocks 13 support each other through their sides, dispersing local stress and absorbing some impact energy. As the deformation increases, the springs 14 on the end faces of adjacent buffer blocks are compressed, further absorbing energy through elastic deformation. At the same time, the rebound force of the springs 14 can assist the buffer blocks 13 in restoring their original position, ensuring that they can withstand multiple impacts.

[0022] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge pile foundation anti-collision buffer device, characterized in that: Includes a main protective sleeve (1) and an arc frame (9). The arc frame (9) is fixedly connected to two ends with a fixing plate (4). A bolt (5) passes through the middle of the fixing plate (4). Nuts (6) are screwed into the two ends of the bolt (5). A rubber pad (7) is fixedly connected to the inner side of the arc frame (9). A hydraulic buffer (11) is fixedly connected to the outer side of the arc frame (9). A buffer plate (2) is provided on the inner side of the main protective sleeve (1), and a rubber buffer column (3) is provided between the main protective sleeve (1) and the buffer plate (2). The buffer end of the hydraulic buffer (11) is fixedly connected to the inner side of the main protective sleeve (1).

2. The bridge pile foundation anti-collision buffer device according to claim 1, characterized in that: The main protective sleeve (1) is arc-shaped, and several main protective sleeves (1) constitute an annular buffer first protective layer.

3. The bridge pile foundation anti-collision buffer device according to claim 1, characterized in that: The rubber buffer column (3) is evenly embedded in the gap between the buffer plate (2) and the main protective sleeve (1), and the axial direction of the rubber buffer column (3) is consistent with the radial direction of the main protective sleeve (1).

4. A bridge pile foundation anti-collision buffer device according to claim 1, characterized in that: The buffer plate (2) is square, and several buffer plates (2) constitute a polygonal buffer second protective layer.

5. A bridge pile foundation anti-collision buffer device according to claim 1, characterized in that: The hydraulic buffer (11) has a thread on the outer surface of the hydraulic end, and a nut (12) is screwed onto the thread on the outer surface of the hydraulic end of the hydraulic buffer (11). The buffer plate (2) passes through the middle of the hydraulic buffer (11) and is fastened between the two nuts (12).

6. A bridge pile foundation anti-collision buffer device according to claim 1, characterized in that: The main protective sleeve (1) is provided with a buffer block (13) inside. The buffer block (13) is hexagonal prism, and several buffer blocks (13) constitute a honeycomb-like buffer layer.

7. A bridge pile foundation anti-collision buffer device according to claim 6, characterized in that: The buffer block (13) has a hollow honeycomb-like structure inside, and a spring (14) is provided between two buffer blocks (13). The two ends of the spring (14) are fixedly connected to the end faces of the two adjacent buffer blocks (13).

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