Bridge anti-collision guardrail with buffering function

Abstract

The utility model relates to bridge guardrail technical field, concretely disclose a bridge crash barrier with buffer function, including base, the top of base is fixedly connected with buffer chamber, the front of buffer chamber is provided with buffer mainboard, the surface fixed connection of extrusion column has two push blocks, the inboard wall fixed connection of buffer groove has two blocking pieces, the one side fixed connection of first damping block has first buffer spring, the surface of first movable clamp is hinged with inclined rod, the surface sliding and the penetration of two collision blocks of positioning rod, the bottom fixed connection of second damping block has second buffer spring, the utility model discloses through the collocation use of first buffer spring, buffer mainboard, buffer column, clamping ring and inclined rod, if bridge crash barrier can play multiple buffering when using is impacted, make the damage of vehicle reduce to minimization, two adjacent guardrails can be spliced fast, make it form a whole, and the elastic pad is damaged and is convenient for replacing in time.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge guardrails, specifically relating to a bridge crash barrier with a buffer function. Background Technology

[0002] A bridge generally refers to a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also been extended to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient. A bridge typically consists of a superstructure, substructure, supports, and ancillary structures. The superstructure, also known as the bridge span structure, is the main structure that crosses obstacles. The substructure includes abutments, piers, and foundations. Supports are force-transmitting devices installed at the points where the bridge span structure supports the piers or abutments. Ancillary structures include approach slabs, tapered slopes, revetments, and diversion works. During bridge construction, guardrails are usually installed on both sides to prevent vehicles from falling off the bridge in case of accidents. However, while guardrails can effectively stop vehicles, they can also cause significant damage. Therefore, crash barriers with a buffer effect have emerged. However, some existing bridge crash barriers with a buffer effect still have certain shortcomings and require improvement.

[0003] Chinese patent CN212247856U discloses a bridge railing with buffer protection function, including a mounting surface. A fixed base is mounted on the upper part of the mounting surface via a first bolt. A fixed post is located on the top of the fixed base, and buffer slots are symmetrically formed on the fixed post. Buffer blocks are slidably arranged within the buffer slots. When a vehicle collides with the bridge railing, it impacts the bottom guard plate at a certain angle. The first and second buffer springs provide a buffering effect on the bottom and top guard plates. Simultaneously, multiple bottom and top guard plates disperse the impact force, improving the vehicle's buffer protection effect. Furthermore, the external force of the vehicle collision is transmitted to the buffer diagonal bar and buffer main post through the mounting rod and mounting post, thereby compressing the buffer sub-springs and buffer main springs, further enhancing the buffering effect. This achieves multiple buffer protection functions, greatly reducing the severity of vehicle and personnel injuries.

[0004] However, although the above-mentioned technical solution can achieve a buffering effect, its use, especially the fixed connection between the buffer diagonal rod and the mounting column, and the fixed connection between the buffer diagonal rod and the buffer block, makes it difficult for the main buffer spring and the buffer sub-spring to be compressed when the mounting column is subjected to impact force. Excessive impact force may even damage the buffer diagonal rod, resulting in poor secondary buffering effect after the mounting column is subjected to impact force, and thus has certain limitations in use. Utility Model Content

[0005] The purpose of this utility model is to provide a bridge crash barrier with a buffer function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A bridge crash barrier with a buffer function includes: a base, a buffer cavity fixedly connected to the top of the base, a buffer main plate disposed in front of the buffer cavity, and compression columns fixedly connected to the top and bottom of the back of the buffer main plate. Two pushing blocks are fixedly connected to the surface of the compression columns. Two buffer grooves are formed inside the buffer cavity, and two blocking blocks are fixedly connected to the inner sidewall of the buffer grooves. A first damping block is fixedly connected to one side of the blocking block, and a first buffer spring is fixedly connected to one side of the first damping block. The end of the first buffer spring away from the first damping block is connected to the pushing block. One side of the moving block is fixedly connected, and the end of the squeezing column away from the buffer main board is fixedly connected to a connecting plate. The top and bottom ends of one side of the connecting plate are fixedly connected to a first movable clamp. The surface of the first movable clamp is hinged with an inclined rod. One side of the inner wall of the buffer groove is fixedly connected to a positioning rod. The surface of the positioning rod slides through two collision blocks. The bottom of the collision block is fixedly connected to a second damping block. The bottom of the second damping block is fixedly connected to a second buffer spring. One side of the collision block is fixedly connected to a second movable clamp, and the end of the inclined rod away from the first movable clamp is hinged to the surface of the second movable clamp.

[0007] Preferably, a first slot is provided in the middle of one side of the buffer cavity, a fixing rod is fixedly connected to the middle of the top wall of the first slot, a blocking disc is fixedly connected to the top of the surface of the fixing rod, and a fastening nut is threadedly connected to the surface of the fixing rod.

[0008] Preferably, a buffer pad is connected to the surface of the buffer main board, and an elastic pad is fixedly connected to the surface of the buffer pad.

[0009] Preferably, two plug rods are fixedly connected to the back of the buffer pad, and the surface of the plug rods penetrates the interior of the buffer main board. Two connecting slots are opened inside the buffer main board. A steel spring is fixedly connected to the inner side wall of the connecting slot. A connecting block is fixedly connected to the top of the steel spring. A snap-fit ​​rod is fixedly connected to the top of the connecting block.

[0010] Preferably, a stabilizing block is fixedly connected to the top and bottom of the inner sidewall of the buffer motherboard. The stabilizing block has a first positioning hole inside, and the surface of the snap-fit ​​rod passes through the first positioning hole and the interior of the plug-in rod. The stabilizing block has a second positioning hole inside, and the surface of the plug-in rod passes through the interior of the second positioning hole.

[0011] Preferably, three buffer pillars are fixedly connected to the back of the buffer main board, a third buffer spring is sleeved on the surface of the buffer pillar, and one end of the third buffer spring is fixedly connected to one side of the buffer main board. Three third damping blocks are fixedly connected to the surface of the buffer cavity, and one side of the third damping block is fixedly connected to one end of the third buffer spring.

[0012] Preferably, a second slot is provided in the middle of the other side of the buffer cavity, a reinforcing rod is fixedly connected to the middle of the top wall of the second slot, a reinforcing crossbar is slidably connected to the surface of the reinforcing rod, a snap ring is fixedly connected to one end of the reinforcing crossbar, and the snap ring is sleeved on the surface of the fixed rod, and six reflective strips are provided on the surface of the buffer cavity.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) When used, the bridge crash barrier can play a multiple buffer protection role, so that the damage when the vehicle hits the crash barrier is minimized. It plays a certain role in protecting both the vehicle and the crash barrier itself, and can extend its service life to a certain extent. The rubber pad is located on the outermost side and is easily damaged. After it is damaged, it is easy for the staff to replace it in time. The replacement method is simple and easy for the staff to operate.

[0014] (2) Two adjacent bridge crash barriers can be quickly connected together to form a whole, thereby improving the overall stability and impact resistance during subsequent use. The splicing method is simple and easy for staff to operate. The reflective strips can provide a certain warning effect for vehicles traveling on the bridge. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional view of the interior of the buffer cavity of this utility model; Figure 3 This is a cross-sectional view of the fixing rod of this utility model; Figure 4 This is a perspective view of the connector rod of this utility model; In the diagram: 1. Base; 2. Buffer cavity; 3. Buffer main plate; 4. Extrusion column; 5. Push block; 6. Buffer groove; 7. Blocking block; 8. First buffer spring; 9. First damping block; 10. Connecting plate; 11. Diagonal bar; 12. Positioning rod; 13. Collision block; 14. Second damping block; 15. Second buffer spring; 16. First empty groove; 17. Fixing rod; 18. Blocking plate; 19. Fastening nut; 20. Reinforcing rod; 21. Reinforcing crossbar; 22. Snap-fit ​​ring; 23. Elastic pad; 24. Insert rod; 25. Rigid spring; 26. Connecting block; 27. Snap-fit ​​rod; 28. Stabilizing block; 29. ​​Third buffer spring; 30. Buffer column; 31. Reflective strip; 32. Buffer pad plate. Detailed Implementation

[0016] 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.

[0017] Example 1: Please see Figures 1 to 4As shown, a bridge crash barrier with a buffer function includes a base 1. A buffer cavity 2 is fixedly connected to the top of the base 1. A buffer main plate 3 is arranged in front of the buffer cavity 2. An extrusion column 4 is fixedly connected to the top and bottom of the middle of the back of the buffer main plate 3. Two push blocks 5 are fixedly connected to the surface of the extrusion column 4. Two buffer grooves 6 are opened inside the buffer cavity 2. Two blocking blocks 7 are fixedly connected to the inner side wall of the buffer grooves 6. A first damping block 9 is fixedly connected to one side of the blocking block 7. A first buffer spring 8 is fixedly connected to one side of the first damping block 9. The end of the first buffer spring 8 away from the first damping block 9 is connected to one end of the push block 5. The compression column 4 is fixedly connected to a connecting plate 10 at one end away from the buffer main plate 3. The top and bottom ends of one side of the connecting plate 10 are fixedly connected to a first movable clamp. The surface of the first movable clamp is hinged with a diagonal rod 11. One side of the inner wall of the buffer groove 6 is fixedly connected to a positioning rod 12. The surface of the positioning rod 12 slides and passes through two collision blocks 13. The bottom of the collision block 13 is fixedly connected to a second damping block 14. The bottom of the second damping block 14 is fixedly connected to a second buffer spring 15. One side of the collision block 13 is fixedly connected to a second movable clamp, and the end of the diagonal rod 11 away from the first movable clamp is hinged to the surface of the second movable clamp. The buffer cavity 2 allows the buffer groove 6 to be opened. The buffer main plate 3 provides a certain buffering effect when the overall guardrail is impacted. The compression column 4 allows the push block 5 to be installed and fixed. The first buffer spring 8, the first damping block 9, and the blocking block 7 provide initial buffering effect when the compression column 4 moves. The connecting plate 10 allows the two first movable clamps to be installed and fixed. The first movable clamps allow the inclined rod 11 to be compressed when it is compressed, thus compressing the collision block 13. The collision block 13 compresses the second buffer spring 15 and the second damping block 14, providing a secondary buffering effect. It should be noted that the collision block 13 is slidably connected to the inner wall of the buffer cavity 2, allowing it to slide on the surface of the positioning rod 12. Two anchor bolts are threadedly connected to both sides of the inner bottom wall of the base 1.

[0018] A buffer pad 32 is connected to the surface of the buffer main board 3, and an elastic pad 23 is fixedly connected to the surface of the buffer pad 32. The buffer pad 32 allows the elastic pad 23 to be installed and fixed. The elastic pad 23 provides cushioning for the buffer main board 3 when it is subjected to a collision. It should be noted that a vertical groove is provided on one side of the buffer main board 3, and a partition is slidably connected inside the vertical groove. The vertical groove facilitates the operator to squeeze the two connecting blocks 26.

[0019] Two plug-in rods 24 are fixedly connected to the back of the buffer pad 32, and the surface of the plug-in rods 24 penetrates the interior of the buffer main plate 3. Two connecting slots are formed inside the buffer main plate 3. A rigid spring 25 is fixedly connected to the inner wall of the connecting slot. A connecting block 26 is fixedly connected to the top of the rigid spring 25, and a snap-fit ​​rod 27 is fixedly connected to the top of the connecting block 26. The plug-in rods 24 allow for initial connection between the buffer pad 32 and the buffer main plate 3. The connecting slots allow for the installation and fixation of the rigid spring 25. The connecting blocks 26 allow for the installation and fixation of the snap-fit ​​rod 27.

[0020] Stabilizing blocks 28 are fixedly connected to the top and bottom of the inner wall of the buffer main board 3. A first positioning hole is formed inside the stabilizing block 28, and the surface of the snap-fit ​​rod 27 passes through the first positioning hole and the interior of the insertion rod 24. A second positioning hole is formed inside the stabilizing block 28, and the surface of the insertion rod 24 passes through the second positioning hole. The stabilizing blocks 28 allow the first and second positioning holes to be opened, enabling the snap-fit ​​rod 27 and the insertion rod 24 to be inserted, thus ensuring a stable connection between the buffer pad 32 and the buffer main board 3. It should be noted that the surface of the insertion rod 24 has a hole similar in size to the first positioning hole, facilitating the insertion of the snap-fit ​​rod 27 and fixing the insertion rod 24 inside the stabilizing block 28.

[0021] Three buffer pillars 30 are fixedly connected to the back of the buffer main board 3. A third buffer spring 29 is sleeved on the surface of each buffer pillar 30, and one end of the third buffer spring 29 is fixedly connected to one side of the buffer main board 3. Three third damping blocks are fixedly connected to the surface of the buffer cavity 2, and one side of each third damping block is fixedly connected to one end of the third buffer spring 29. The buffer pillars 30 provide a guiding effect when the buffer main board 3 moves to the right. The third buffer springs 29 and the third damping blocks provide a buffering effect between the buffer main board 3 and the buffer cavity 2. The surface of the buffer pillars 30 penetrates the interior of the third damping blocks and the buffer cavity 2, allowing for a certain amount of movement.

[0022] Example 2: Please see Figure 1 and Figure 3 As shown, a first slot 16 is provided in the middle of one side of the buffer cavity 2. A fixing rod 17 is fixedly connected to the middle of the top wall of the first slot 16. A blocking plate 18 is fixedly connected to the top of the surface of the fixing rod 17. A fastening nut 19 is threadedly connected to the surface of the fixing rod 17. The opening of the first slot 16 allows the fixing rod 17 to be installed and fixed, and the setting of the fixing rod 17 allows the blocking plate 18 to be installed and fixed.

[0023] A second slot is provided in the middle of the other side of the buffer cavity 2. A reinforcing rod 20 is fixedly connected to the middle of the top wall of the second slot. A reinforcing crossbar 21 is slidably connected to the surface of the reinforcing rod 20. A snap ring 22 is fixedly connected to one end of the reinforcing crossbar 21, and the snap ring 22 is sleeved on the surface of the fixed rod 17. Six reflective strips 31 are provided on the surface of the buffer cavity 2. The second slot allows the reinforcing rod 20 to be installed and fixed. The reinforcing crossbar 21 can slide on its surface. The snap ring 22 allows the reinforcing rod 20 to be indirectly connected to the fixed rod 17. The snap ring 22 is fixed to the surface of the fixed rod 17 by the fastening nut 19, preventing it from sliding down.

[0024] The working principle of this utility model is as follows: The worker fixes the base 1 to both sides of the bridge using anchor bolts. Then, two adjacent buffer chambers 2 are connected one by one, causing the reinforcing crossbar 21 inside the second slot on the other side of the other buffer chamber 2 to move into the first slot 16 on one side of the buffer chamber 2 in this device. The reinforcing crossbar 21 is then moved upwards, causing the locking ring 22 to engage with the surface of the fixing rod 17, with the top of the locking ring 22 contacting the bottom of the blocking disc 18. The worker then tightens the fastening nut 19 to fix the locking ring 22 to the fixing rod 17. The two adjacent buffer chambers 2 are then connected together. When the entire device is impacted by a vehicle, the elastic pad 23 is pre-impacted, providing a gradual buffering effect. Subsequently, the buffer main plate 3 is compressed, causing it to push the compression column 4 to the right, which in turn causes the pushing block 5 to compress the first buffer spring 8, achieving an initial buffering effect. During this process, the connecting plate 10 presses the inclined rod 11 to the right through the first movable clamp, which in turn causes the inclined rod 11 to press the collision block 13 through the hinge with the second movable clamp. This causes the two collision blocks 13 to press towards each other through the positioning rod 12. At this time, the second buffer spring 15 and the second damping block 14 are compressed, which plays a secondary buffering role. When the buffer main plate 3 moves to the right, the buffer column 30 moves to the right. At this time, the third buffer spring 29 is compressed, which plays a buffering role again. Through the triple buffering effect, the damage when the vehicle collides with the guardrail is minimized. If the elastic pad 23 is damaged, the staff can lift the partition upward through the vertical groove and then press the two connecting blocks 26 towards each other until the snap rod 27 disengages from the surface of the first positioning hole and the plug rod 24. At this time, the plug rod 24 and the buffer pad 32 are separated from the buffer main plate 3, and the staff can replace the new buffer pad 32.

[0025] 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 crash barrier with a buffer function, characterized in that, include: A base (1) is provided with a buffer cavity (2) fixedly connected to the top of the base (1). A buffer main board (3) is provided in front of the buffer cavity (2). A squeezing column (4) is fixedly connected to the top and bottom of the middle of the back of the buffer main board (3). Two pushing blocks (5) are fixedly connected to the surface of the squeezing column (4). Two buffer grooves (6) are opened inside the buffer cavity (2). Two blocking blocks (7) are fixedly connected to the inner side wall of the buffer groove (6). A first damping block (9) is fixedly connected to one side of the blocking block (7). A first buffer spring (8) is fixedly connected to one side of the first damping block (9). The end of the first buffer spring (8) away from the first damping block (9) is fixedly connected to one side of the pushing block (5). Next, a connecting plate (10) is fixedly connected to one end of the extrusion column (4) away from the buffer main plate (3). A first movable clamp is fixedly connected to the top and bottom ends of one side of the connecting plate (10). A diagonal rod (11) is hinged to the surface of the first movable clamp. A positioning rod (12) is fixedly connected to one side of the inner wall of the buffer groove (6). The surface of the positioning rod (12) slides and passes through two collision blocks (13). A second damping block (14) is fixedly connected to the bottom of the collision block (13). A second buffer spring (15) is fixedly connected to the bottom of the second damping block (14). A second movable clamp is fixedly connected to one side of the collision block (13), and the end of the diagonal rod (11) away from the first movable clamp is hinged to the surface of the second movable clamp.

2. A bridge crash barrier with buffer function according to claim 1, characterized in that: A first slot (16) is provided in the middle of one side of the buffer cavity (2). A fixing rod (17) is fixedly connected to the middle of the top wall of the first slot (16). A blocking plate (18) is fixedly connected to the top of the surface of the fixing rod (17). A fastening nut (19) is threadedly connected to the surface of the fixing rod (17).

3. A bridge crash barrier with buffer function according to claim 1, characterized in that: The surface of the buffer main board (3) is connected to a buffer pad (32), and an elastic pad (23) is fixedly connected to the surface of the buffer pad (32).

4. A bridge crash barrier with buffer function according to claim 3, characterized in that: Two plug rods (24) are fixedly connected to the back of the buffer pad (32), and the surface of the plug rods (24) penetrates the interior of the buffer main plate (3). Two connecting slots are opened inside the buffer main plate (3). A steel spring (25) is fixedly connected to the inner side wall of the connecting slot. A connecting block (26) is fixedly connected to the top of the steel spring (25), and a snap-fit ​​rod (27) is fixedly connected to the top of the connecting block (26).

5. A bridge crash barrier with buffer function according to claim 1, characterized in that: The top and bottom of the inner wall of the buffer main board (3) are fixedly connected to a stabilizing block (28). The stabilizing block (28) has a first positioning hole inside, and the surface of the snap-fit ​​rod (27) passes through the first positioning hole and the interior of the plug-in rod (24). The stabilizing block (28) has a second positioning hole inside, and the surface of the plug-in rod (24) passes through the interior of the second positioning hole.

6. A bridge crash barrier with buffer function according to claim 1, characterized in that: Three buffer pillars (30) are fixedly connected to the back of the buffer main board (3). A third buffer spring (29) is sleeved on the surface of the buffer pillar (30), and one end of the third buffer spring (29) is fixedly connected to one side of the buffer main board (3). Three third damping blocks are fixedly connected to the surface of the buffer cavity (2), and one side of the third damping block is fixedly connected to one end of the third buffer spring (29).

7. A bridge crash barrier with buffer function according to claim 1, characterized in that: A second slot is provided in the middle of the other side of the buffer cavity (2). A reinforcing rod (20) is fixedly connected to the middle of the top wall of the second slot. A reinforcing crossbar (21) is slidably connected to the surface of the reinforcing rod (20). A snap ring (22) is fixedly connected to one end of the reinforcing crossbar (21), and the snap ring (22) is sleeved on the surface of the fixed rod (17). Six reflective strips (31) are provided on the surface of the buffer cavity (2).

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