Multi-stage shock absorbing support device for bridges

Abstract

The application relates to the field of bridge support, and discloses a multistage damping support device for a bridge, which comprises a first connecting plate and a bearing block, a plurality of positioning blocks are fixedly connected to the top of the first connecting plate, an extension block is fixedly connected to the top of the positioning block, a track block is fixedly connected to the top of the positioning block, a first extrusion block is slidably connected to the top of the track block, a push rod is fixedly connected to one side of the first extrusion block, a first spring is arranged on one side of the first extrusion block, adjusting plates are fixedly connected to the sides, away from each other, of the two push rods, a locking groove is arranged in the inner wall of the extension block, and a first rotating rod is fixedly connected to the bottom of the adjusting plate. Through cooperation of the damper, the first extrusion block, the first spring, the first connecting rod and the second connecting rod, four times of damping and buffering effects can be realized, the alleviating capacity for different impacts can be effectively improved, and the protection performance for the bridge can be improved.

Description

Technical Field

[0001] This invention relates to the field of bridge support technology, specifically to a multi-stage vibration damping support device for bridges. Background Technology

[0002] A bridge damping brace is a device used to reduce the vibration and impact forces caused by earthquakes and traffic loads on a bridge structure. In traditional bridge design, rigid bracing is usually used to connect the bridge to the piers.

[0003] This design presents several problems when facing earthquakes and traffic loads. First, rigid supports cannot effectively absorb and disperse the impact forces and vibrations generated by earthquakes and traffic loads, easily leading to damage and breakage of the bridge structure. Second, rigid supports cannot provide sufficient damping and cushioning, making the bridge prone to fatigue and damage over long-term use, thus shortening its service life. Furthermore, traditional bridge support devices often use a single material or simple structure to provide cushioning, lacking specialized designs for different vibrations and impacts.

[0004] To address these issues, a multi-stage damping support device for bridges is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-stage shock-absorbing support device for bridges, which solves the problem that traditional bridge support devices use overly simple materials and have poor earthquake and impact resistance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage vibration damping support device for bridges, comprising a first connecting plate and a bearing block. Multiple positioning blocks are fixedly connected to the top of the first connecting plate. An extension block is fixedly connected to the top of each positioning block. A track block is fixedly connected to the top of each positioning block. A first pressing block is slidably connected to the top of the track block. A push rod is fixedly connected to one side of the first pressing block. A first spring is provided on one side of the first pressing block. Adjusting plates are fixedly connected to the opposite sides of the two push rods. A locking groove is provided on the inner wall of the extension block. A first rotating rod is fixedly connected to the bottom of the adjusting plate. Both sides of the outer wall of the first rotating rod are rotatably connected... A first connecting rod is connected to the inner wall of the track block, a second rotating rod is fixedly connected to the inner wall of the track block, a second connecting rod is rotatably connected to one side of the first connecting rod, a third connecting rod is rotatably connected to the side of the second connecting rod connected to the first connecting rod, a secondary buffer block is rotatably connected to the top of the outer wall of the third connecting rod, a second pressing block is slidably connected to both sides of the bottom of the track block, an mounting block is fixedly connected to both sides of the bottom of the track block, multiple cylinders are fixedly connected to the adjacent sides of the two mounting blocks, a docking rod is fixedly connected to the distant sides of the two second pressing blocks, a piston is installed on one side of the docking rod, a detection component is provided on the top of the first connecting plate, and a support component is provided on the top of the first connecting plate.

[0007] Preferably, the detection component includes a load alarm, and multiple load alarms are installed on the top of the first connecting plate. Protective posts are fixedly connected to the four corners of the top of the first connecting plate. Buffer rubber is fixedly connected to the inner wall of the protective posts. A sensing plate is fixedly connected to the bottom of the buffer rubber. An extrusion post is fixedly connected to the bottom of the bearing block.

[0008] Preferably, the support assembly includes a second rubber block, which is mounted on top of the first connecting plate. The first rubber block is positioned on top of the second rubber block, and the second connecting plate is fixedly connected to the top of the first rubber block. Multiple fastening bolts are fixedly connected to the top of the second connecting plate, and dampers are fixedly connected to the four corners of the top of the first connecting plate. A second spring is positioned on the top of each damper.

[0009] Preferably, the bearing block is slidably connected to one side of the two first extrusion blocks, and the adjustment plate is slidably connected to the inner wall of the locking groove.

[0010] Preferably, the secondary buffer block is slidably connected to one side of the two second compression blocks, and the piston is slidably connected to the inner wall of the cylinder.

[0011] Preferably, the first compression block is slidably connected to one side of the extension block, and the first spring is disposed on the opposite side of the two extension blocks.

[0012] Preferably, the sensing plate is electrically connected to the input terminal of the load alarm.

[0013] Preferably, the extrusion column is slidably connected to the inner wall of the cushioning rubber.

[0014] Preferably, the second spring is disposed at the bottom four corners of the second connecting plate, and the output end of the damper is fixedly connected to the bottom four corners of the second connecting plate.

[0015] Preferably, the plurality of fastening bolts are fixedly connected to the bottom of the first connecting plate.

[0016] Working Principle: When this multi-stage vibration damping support device is used for bridge support, it is installed at the connection between the bridge and the pier using fastening bolts on the corresponding sides of the first and second connecting plates. After the connection is completed, when the bridge vibration amplifies and is transmitted to the second connecting plate, it is mitigated by the installation of the first and second rubber blocks. When the first and second rubber blocks are overloaded by compression, the stress generated by the vibration is transmitted downward by the bearing blocks fixed around them. Since the bearing blocks are inverted trapezoidal, during the downward movement under force, the first compression blocks on both sides can be displaced to the sides by the extrusion force. During the displacement, the first spring resists the stress first. After the stress disappears, the first spring pushes the first compression block back to its original position. During the movement of the first compression block, the push rod pushes the adjusting plates on both sides to move to the sides along the track of the locking groove. After the adjusting plates move, the connecting rod structure pulls the middle of the first and second connecting rods upward, causing the secondary buffer block to rise. The arrow shape of the secondary buffer block extrudes the second compression blocks on both sides, thereby pushing the connecting rod and using the air compression inside the cylinder by the piston to achieve the buffering effect.

[0017] Furthermore, within the vibration tolerance range, the connection between the first and second connecting plates can be stabilized through the cooperation of the second spring and the damper, thereby improving load-bearing stability. If the vibration exceeds the load range, the cushioning rubber is compressed by the extrusion column at the bottom of the bearing block. If the vibration weight exceeds the preset weight range of the load alarm, the load alarm electrically connected to the sensing plate will sound an alarm to remind maintenance personnel to check in time and ensure the safety and stability of the bridge.

[0018] This invention provides a multi-stage vibration damping support device for bridges. It has the following beneficial effects: 1. This invention achieves a quadruple shock absorption effect through the coordinated use of components such as a damper, a first compression block, a first spring, a first connecting rod, and a second connecting rod, effectively improving the ability to mitigate different impacts and enhancing the protection performance of bridges.

[0019] 2. This invention, through the combined use of components such as bearing blocks, extrusion columns, second connecting plates, and buffer rubber, can help staff to detect the vibration reduction status of bridges in real time, improve the long-term load-bearing safety of bridges, reduce maintenance time, and enable precise maintenance of overloaded bridges in the first instance.

[0020] 3. The present invention provides stable support performance through the coordinated use of components such as the first rubber block, the second rubber block, and the second spring. Multiple sets of bearing blocks are arranged around the perimeter to uniformly resist impacts from multiple angles and complete the shock absorption function. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the first rubber block of the present invention; Figure 3 This is a schematic diagram of the track block structure of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the protective column of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the track block of the present invention; Figure 6 This is an exploded view of the mounting block structure of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the cylinder block of the present invention.

[0022] The components are as follows: 1. First connecting plate; 2. Positioning block; 3. Extension block; 4. Track block; 5. First pressing block; 6. Push rod; 7. First spring; 8. Adjusting plate; 9. Locking groove; 10. First rotating rod; 11. First connecting rod; 12. Second rotating rod; 13. Second connecting rod; 14. Third connecting rod; 15. Secondary buffer block; 16. Second pressing block; 17. Mounting block; 18. Cylinder body; 19. Connecting rod; 20. Piston; 21. Protective column; 22. Buffer rubber; 23. Load alarm; 24. Sensing plate; 25. Bearing block; 26. Pressing column; 27. Second connecting plate; 28. Fastening bolt; 29. ​​First rubber block; 30. Second rubber block; 31. Damper; 32. Second spring. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example

[0024] Please see the appendix Figure 5 - Appendix Figure 7 This invention provides a multi-stage vibration damping support device for bridges, including a first connecting plate 1 and a bearing block 25. Multiple positioning blocks 2 are fixedly connected to the top of the first connecting plate 1. An extension block 3 is fixedly connected to the top of each positioning block 2. A track block 4 is fixedly connected to the top of each positioning block 2. A first pressing block 5 is slidably connected to the top of the track block 4. A push rod 6 is fixedly connected to one side of the first pressing block 5. A first spring 7 is provided on one side of the first pressing block 5. Adjusting plates 8 are fixedly connected to the opposite sides of the two push rods 6. A locking groove 9 is provided on the inner wall of the extension block 3. A first rotating rod 10 is fixedly connected to the bottom of the adjusting plate 8. First connecting rods 11 are rotatably connected to both sides of the outer wall of the first rotating rod 10. The track block 4... A second rotating rod 12 is fixedly connected to the inner wall. A second connecting rod 13 is rotatably connected to one side of the first connecting rod 11. A third connecting rod 14 is rotatably connected to the side of the second connecting rod 13 connected to the first connecting rod 11. A secondary buffer block 15 is rotatably connected to the top of the outer wall of the third connecting rod 14. A second pressing block 16 is slidably connected to both sides of the bottom of the track block 4. An installation block 17 is fixedly connected to both sides of the bottom of the track block 4. Multiple cylinders 18 are fixedly connected to the adjacent side of the two installation blocks 17. A docking rod 19 is fixedly connected to the distant side of the two second pressing blocks 16. A piston 20 is installed on one side of the docking rod 19. A detection component is provided on the top of the first connecting plate 1. A support component is provided on the top of the first connecting plate 1.

[0025] The bearing block 25 is designed as an inverted trapezoid. When it moves downward under force, the first pressing blocks 5 on both sides are displaced to the sides by the squeezing force. During this process, the first spring 7 will play a role in stress resistance and will help the first pressing block 5 to return to its original position after the stress is removed. When the first pressing block 5 moves, the push rod 6 drives the adjusting plates 8 on both sides to move to the sides along the track of the locking groove 9. The movement of the adjusting plates 8 further pulls the middle of the first connecting rod 11 and the second connecting rod 13 upward through the linkage structure, thereby lifting the secondary buffer block 15. The arrow shape of the secondary buffer block 15 will squeeze the second pressing blocks 16 on both sides, causing them to move, pushing the docking rod 19 and using the air compression inside the cylinder 18 by the piston 20 to achieve the buffering effect.

[0026] The bearing block 25 is slidably connected to one side of the two first pressing blocks 5. The bearing block 25 is designed as an inverted trapezoid. When it is subjected to force and moves downward, the pressing force causes the first pressing blocks 5 on both sides to move to the sides. The adjusting plate 8 is slidably connected to the inner wall of the locking groove 9. The setting of the locking groove 9 can limit the displacement of the adjusting plate 8 and the position of the first rotating rod 10.

[0027] The secondary buffer block 15 is slidably connected to one side of the two second compression blocks 16. The secondary buffer block 15 is designed as an inverted trapezoid. When it moves upward under force, the compression force causes the second compression blocks 16 on both sides to move to the sides. The piston 20 is slidably connected to the inner wall of the cylinder 18. The cylinder 18 is filled with compressed air, which pushes the piston 20 out of the cylinder for displacement.

[0028] The first extrusion block 5 is slidably connected to one side of the extension block 3. The movement of the first extrusion block 5 is restricted by the position limit of the two extension blocks 3. This restriction can limit the total depth of the extrusion column 26 in extruding the buffer rubber 22. The first spring 7 is set on the far side of the two extension blocks 3.

[0029] Please see the appendix Figure 3 - Appendix Figure 4 The detection component includes a load alarm 23. Multiple load alarms 23 are installed on the top of the first connecting plate 1. Protective posts 21 are fixedly connected to the four corners of the top of the first connecting plate 1. Buffer rubber 22 is fixedly connected to the inner wall of the protective posts 21. A sensing plate 24 is fixedly connected to the bottom of the buffer rubber 22. A squeezing post 26 is fixedly connected to the bottom of the bearing block 25.

[0030] Within the vibration tolerance range, the coordinated operation of the second spring 32 and the damper 31 can stabilize the connection between the first connecting plate 1 and the second connecting plate 27, enhancing the overall load-bearing stability. If the vibration exceeds the load range, the compression column 26 at the bottom of the load-bearing block 25 will compress the buffer rubber 22 to absorb additional energy. If the weight caused by the vibration exceeds the preset range of the load alarm 23, the sensing plate 24 will trigger the load alarm 23 to issue an alarm, reminding maintenance personnel to check in time, thereby ensuring the safety and stability of the bridge.

[0031] The sensor plate 24 is electrically connected to the input terminal of the load alarm 23. The sensor plate 24 can detect the pressing depth of the bearing block 25 in real time, and thus determine whether the vibration is destructive by predicting the pressure range.

[0032] The extrusion column 26 is slidably connected to the inner wall of the buffer rubber 22. By setting up the chicken, duck, and pig with the buffer rubber 22, a third level of buffering can be achieved, thereby ensuring support and shock absorption performance.

[0033] Please see the appendix Figure 1 - Appendix Figure 3 The support assembly includes a second rubber block 30, which is mounted on the top of the first connecting plate 1. A first rubber block 29 is provided on the top of the second rubber block 30. A second connecting plate 27 is fixedly connected to the top of the first rubber block 29. A plurality of fastening bolts 28 are fixedly connected to the top of the second connecting plate 27. Dampers 31 are fixedly connected to the four corners of the top of the first connecting plate 1. A second spring 32 is provided on the top of the damper 31.

[0034] When the bridge vibrates and the vibration is transmitted to the second connecting plate 27, the first rubber block 29 and the second rubber block 30 inside the device will play a preliminary buffering role.

[0035] The second spring 32 is located at the bottom four corners of the second connecting plate 27, limiting the position of the second spring 32 on both sides. The output end of the damper 31 is fixedly connected to the bottom four corners of the second connecting plate 27, and the damper 31 is used to ensure the stability of the first connecting plate 1 and the middle four corners of the second connecting plate 27.

[0036] Multiple fastening bolts 28 are fixedly connected to the bottom of the first connecting plate 1, and the first connecting plate 1 and the second connecting plate 27 are securely installed at the connection between the bridge and the pier using the fastening bolts 28 on the corresponding sides of the second connecting plate 1. Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage vibration damping support device for bridges, comprising a first connecting plate (1) and a bearing block (25), characterized in that, Multiple positioning blocks (2) are fixedly connected to the top of the first connecting plate (1). An extension block (3) is fixedly connected to the top of the positioning block (2). A track block (4) is fixedly connected to the top of the positioning block (2). A first pressing block (5) is slidably connected to the top of the track block (4). A push rod (6) is fixedly connected to one side of the first pressing block (5). A first spring (7) is provided on one side of the first pressing block (5). An adjusting plate (8) is fixedly connected to the opposite side of the two push rods (6). A locking groove (9) is opened on the inner wall of the extension block (3). A first rotating rod (10) is fixedly connected to the bottom of the adjusting plate (8). A first connecting rod (11) is rotatably connected to both sides of the outer wall of the first rotating rod (10). A second rotating rod (12) is fixedly connected to the inner wall of the track block (4). A second link (13) is rotatably connected to one side of the first link (11), and a third link (14) is rotatably connected to the side of the second link (13) connected to the first link (11). A secondary buffer block (15) is rotatably connected to the top of the outer wall of the third link (14). A second extrusion block (16) is slidably connected to both sides of the bottom of the track block (4). An installation block (17) is fixedly connected to both sides of the bottom of the track block (4). Multiple cylinders (18) are fixedly connected to the adjacent side of the two installation blocks (17). A docking rod (19) is fixedly connected to the distant side of the two second extrusion blocks (16). A piston (20) is installed on one side of the docking rod (19). A detection component is provided on the top of the first connecting plate (1), and a support component is provided on the top of the first connecting plate (1). The bearing block (25) is slidably connected to one side of the two first pressing blocks (5), and the adjusting plate (8) is slidably connected to the inner wall of the locking groove (9); The secondary buffer block (15) is slidably connected to one side of the two second compression blocks (16), and the piston (20) is slidably connected to the inner wall of the cylinder (18); The first compression block (5) is slidably connected to one side of the extension block (3), and the first spring (7) is disposed on the opposite side of the two extension blocks (3).

2. The multi-stage vibration damping support device for bridges according to claim 1, characterized in that, The detection component includes a load alarm (23), and multiple load alarms (23) are installed on the top of the first connecting plate (1). Protective posts (21) are fixedly connected to the four corners of the top of the first connecting plate (1). Buffer rubber (22) is fixedly connected to the inner wall of the protective post (21). Induction plate (24) is fixedly connected to the bottom of the buffer rubber (22). Extrusion post (26) is fixedly connected to the bottom of the bearing block (25).

3. The multi-stage vibration damping support device for bridges according to claim 1, characterized in that, The support assembly includes a second rubber block (30), which is mounted on the top of the first connecting plate (1). A first rubber block (29) is provided on the top of the second rubber block (30). A second connecting plate (27) is fixedly connected to the top of the first rubber block (29). A plurality of fastening bolts (28) are fixedly connected to the top of the second connecting plate (27). Dampers (31) are fixedly connected to the four corners of the top of the first connecting plate (1). A second spring (32) is provided on the top of the damper (31).

4. The multi-stage vibration damping support device for bridges according to claim 2, characterized in that, The sensor plate (24) is electrically connected to the input terminal of the load alarm (23).

5. The multi-stage vibration damping support device for bridges according to claim 2, characterized in that, The extrusion column (26) is slidably connected to the inner wall of the buffer rubber (22).

6. The multi-stage vibration damping support device for bridges according to claim 3, characterized in that, The second spring (32) is located at the bottom four corners of the second connecting plate (27), and the output end of the damper (31) is fixedly connected to the bottom four corners of the second connecting plate (27).

7. The multi-stage vibration damping support device for bridges according to claim 3, characterized in that, Multiple fastening bolts (28) are fixedly connected to the bottom of the first connecting plate (1).

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