Bridge anti-seismic device with buffering and energy dissipation functions

Abstract

The invention relates to a bridge anti-seismic device capable of buffering and dissipating energy, a group of first supporting seats used for supporting a bridge body and two groups of second supporting seats located on the two sides of the first supporting seats are arranged at the top of a bridge pier, each second supporting seat comprises a base plate fixedly arranged at the top of the bridge pier, and a sliding seat is slidably arranged at the top of each base plate; a first wedge block is detachably arranged in the sliding seat, a second wedge block is arranged on one side of the first wedge block, a mounting plate is inserted into the top of the second wedge block, and the mounting plate is fixedly arranged at the bottom of the bridge body; the two first dampers are fixedly arranged on the two sides of the two connecting boxes correspondingly, and the output ends of the first dampers are fixedly connected with the corresponding sliding seats. Second dampers corresponding to the mounting plates are fixedly arranged at the tops of the bridge piers, and the output ends of the second dampers are fixedly connected with the corresponding mounting plates. The problem that in the using process of an existing shock-absorbing and anti-seismic device, maintenance is troublesome after a shock-absorbing pad and a damping medium are abraded is solved. The abrasion degree is difficult to master timely and accurately, and follow-up maintenance is inconvenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge construction and relates to a bridge seismic isolation device with buffering and energy dissipation functions. Background Art

[0002] With the continuous development of the transportation industry and the increasing improvement of construction engineering standards, bearings not only play a supporting role in bridges and other projects but also have a shock-absorbing function. Specifically, by setting a buffer seismic isolation device between the bridge body and the bearing, the vibration generated during vehicle driving can be effectively reduced, thereby protecting the overall structure of the bridge.

[0003] However, there are some deficiencies in the existing shock-absorbing and seismic isolation devices during use. On the one hand, the shock-absorbing pads and damping media are prone to wear during long-term use and are difficult to replace immediately. During maintenance, it is usually necessary to use additional support members to lift the bridge to a certain height. This operation is not only relatively complex but also has certain safety risks. On the other hand, for the detection of the wear degree, it mainly relies on manual measurement and observation at present. This method takes a long time and it is difficult to accurately grasp the actual condition of the equipment in a timely manner, bringing a lot of inconvenience to the subsequent maintenance work. Summary of the Invention

[0004] In view of this, the present invention provides a bridge seismic isolation device with buffering and energy dissipation functions to solve the problems that the maintenance of the shock-absorbing pads and damping media is relatively troublesome after wear during the use of the existing shock-absorbing and seismic isolation devices; it is difficult to accurately grasp the wear degree in a timely manner, and the subsequent maintenance is inconvenient.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A bridge seismic isolation device with buffering and energy dissipation functions includes a pier arranged on the ground. The pier is provided with a group of first support seats and two groups of second support seats. The same bridge body is arranged on the first support seat and the two second support seats on the same side;

[0007] The first support seat includes a connection box fixedly arranged on the top of the pier. The same shock-absorbing pad for shock absorption is connected between the connection box and the bridge body;

[0008] The second support seat includes a backing plate fixedly arranged on the top of the pier. A sliding seat is slidably arranged on the top of the backing plate. A first wedge block is detachably arranged in the sliding seat. A second wedge block is arranged on one side of the first wedge block. An installation plate is inserted into the top of the second wedge block. The installation plate is fixedly arranged at the bottom of the bridge body;

[0009] Two groups of first dampers are respectively fixedly arranged on both sides of the two connection boxes. The output end of the first damper is fixedly connected to the corresponding sliding seat for consuming the vibration of the bridge body;

[0010] A second damper is fixedly arranged at the top of the pier corresponding to the mounting plate. The output end of the second damper is fixedly connected to the corresponding mounting plate to consume the vibration of the bridge body.

[0011] A support mechanism is arranged at the top of the pier and located between two groups of second support seats, which is used to support and reset the bridge body and replace the second support seats during the support process.

[0012] A monitoring mechanism is arranged on the second damper to monitor the wear of the first wedge block and the second wedge block.

[0013] Furthermore, the support mechanism includes two fourth wedge blocks slidably arranged on the top of the pier. A fixing plate corresponding to the fourth wedge block is fixedly arranged at the top of the pier. A third wedge block cooperating with the fourth wedge block is slidably arranged on one side of the fixing plate. Two first wedge blocks are fixedly arranged at the top of the pier. Two clamping seats are fixedly arranged at the top of the pier. A hydraulic cylinder is arranged in one of the clamping seats. One end of the hydraulic cylinder abuts against the second fixing seat. The oil inlet and outlet of the hydraulic cylinder are connected to an external hydraulic station to support the bridge body.

[0014] Furthermore, two groups of positioning columns are arranged at the top of the sliding seat. A first jack corresponding to the positioning column is opened at the bottom of the first wedge block. A first fixing seat is fixedly arranged on one side of the sliding seat. Two first insertion rods are slidably arranged through one side of the first fixing seat. Second jacks adapted to the first insertion rods are opened on one side of the first wedge block and the positioning column. One end of the first insertion rod passes through the first wedge block and is inserted into two positioning columns on one side to fix the first wedge block on the sliding seat.

[0015] Furthermore, two second insertion rods are slidably arranged in the first wedge block. One end of the second insertion rod is inserted into the positioning column on the other side. A second spring is sleeved on the outer wall of the second insertion rod. Two ends of the second spring are respectively fixedly connected to the outer wall of one end of the second insertion rod and the inner wall of one side of the first wedge block, and one side of the second insertion rod can cooperate with the first insertion rod.

[0016] Furthermore, two fixing bars are fixedly arranged through one side of the fourth wedge block. A wedge bar cooperating with the first insertion rod is arranged at the top of the fixing bar. A second tension spring is sleeved on the outer wall of the first insertion rod. Two ends of the second tension spring are respectively fixedly connected to the outer wall of one end of the first insertion rod and one side of the first fixing seat to drive the first insertion rod to move.

[0017] Furthermore, the monitoring mechanism includes a connecting bar fixedly arranged on the outer wall of the second damper. One end of the connecting bar is fixedly provided with a connecting frame. A second guiding rod is fixedly arranged inside the connecting frame. One side of the second wedge block is fixedly provided with an insertion block. The second guiding rod is located inside the insertion block. The top of the connecting frame is fixedly provided with a connecting cylinder. A sliding rod is slidably arranged inside the connecting cylinder. A through hole corresponding to the sliding rod is formed in the top of the connecting frame. A first tension spring is sleeved on the outer wall of the sliding rod. Two ends of the first tension spring are respectively fixedly connected with the outer wall of the top end of the sliding rod and the bottom wall of the connecting cylinder. A proximity switch used in cooperation with the insertion block is fixedly arranged at the bottom end of the sliding rod. The proximity switch is connected to an external alarm through a wire.

[0018] Furthermore, a sliding block is slidably arranged on the top of the bridge pier. The mutually approaching ends of the two fixing bars respectively penetrate through the corresponding fixing plates and the third wedge block and are fixedly connected with the sliding block. Two sliding bars are fixedly arranged on the top of the sliding block. Positioning openings are formed on both sides of the cushion block and the inner side of the second wedge block. A first positioning rod used in cooperation with the positioning opening on the cushion block is fixedly arranged on one side of the sliding bar. A second positioning rod used in cooperation with the positioning opening on the second wedge block is fixedly arranged on one side of the sliding bar, which is used for fixing the second support seat after support.

[0019] Furthermore, a nut ring is threadedly sleeved on the outer wall of the output end of the second damper. The nut ring is used in cooperation with the bottom end of the second damper to limit the bridge body. The nut ring is used in cooperation with the sliding bar through a transmission member to limit the nut ring.

[0020] Furthermore, the transmission member includes two first guiding rods fixedly arranged on one side of the second wedge block. The outer walls of the two first guiding rods are slidably sleeved with the same sliding frame. A notch used in cooperation with the sliding frame is formed on the outer wall of the nut ring. One side of the sliding frame is used in cooperation with the corresponding sliding bar. A first spring is sleeved on the outer wall of the first guiding rod. Two ends of the first spring are respectively fixedly connected with the outer wall of one end of the first guiding rod and one side of the sliding frame, which is used to drive the sliding frame to reset and move.

[0021] Furthermore, a rectangular opening corresponding to the fixing bar is formed at the bottom end of the third wedge block.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. A bridge seismic resistance device with buffer energy dissipation disclosed by the present invention can provide effective support and buffer for the bridge body through the first support seat and the second support seat, as well as the first damper, the second damper and the monitoring mechanism used in cooperation, reduce the vibration amplitude of the bridge body, thereby improving the seismic resistance performance of the bridge and ensuring the safety of the bridge and vehicle driving.

[0024] 2. A bridge seismic isolation device with buffering and energy dissipation disclosed by the present invention can, through the design of a monitoring mechanism, monitor the wear conditions of the first wedge block and the second wedge block in real time. Once the wear reaches a certain degree, an alarm can be sent in time to remind maintenance personnel to replace them, thereby avoiding potential safety hazards caused by excessive wear.

[0025] 3. A bridge seismic isolation device with buffering and energy dissipation disclosed by the present invention can, through the design of a support mechanism, support and reset the bridge body through components such as hydraulic cylinders after the first wedge block and the second wedge block are worn, and replace the second support seat during the support process, improving the practicability and reliability of the device. At the same time, it can also fix the cushion block and the second wedge block, and can change the elastic support of the bridge body into a rigid support to avoid shaking during the replacement process.

[0026] 4. A bridge seismic isolation device with buffering and energy dissipation disclosed by the present invention can, through the arrangement of components such as positioning columns, first insertion rods, and second insertion rods, firmly fix the first wedge block on the sliding seat, and automatically release the fixation of the first wedge block during the process of rigidly supporting the bridge body, facilitating the disassembly and replacement of the first wedge block and improving the maintenance efficiency of the device.

[0027] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail preferably with reference to the accompanying drawings, where:

[0029] Figure 1 is a three-dimensional structural schematic diagram of a bridge seismic isolation device with buffering and energy dissipation of the present invention;

[0030] Figure 2 is of the present invention Figure 1 a schematic diagram of the support seat installation structure;

[0031] Figure 3 is of the present invention Figure 1 a schematic diagram of the second support seat structure;

[0032] Figure 4 is of the present invention Figure 1 a cross-sectional view of the connecting frame;

[0033] Figure 5 is of the present invention Figure 1 a cross-sectional view of the first wedge block;

[0034] Figure 6 For the present invention Figure 1 Schematic diagram of the installation structure of the hydraulic cylinder in it;

[0035] Figure 7 For the present invention Figure 1 Schematic diagram of the installation structure of the sliding bar in it.

[0036] Reference numerals: 1, pier; 2, first support seat; 3, second support seat; 4, bridge body; 5, connection box; 6, cushion block; 7, first damper; 8, backing plate; 9, sliding seat; 10, first wedge block; 11, second wedge block; 12, second damper; 13, mounting plate; 14, first fixing seat; 15, first inserting rod; 16, first guiding rod; 17, first spring; 18, sliding frame; 19, nut ring; 20, notch; 21, connecting strip; 22, connecting frame; 23, second guiding rod; 24, inserting block; 25, connecting cylinder; 26, sliding rod; 27, first tension spring; 28, proximity switch; 29, first jack; 30, positioning column; 32, second jack; 33, second tension spring; 34, second inserting rod; 35, second spring; 36, sliding block; 37, fixing plate; 38, third wedge block; 39, fourth wedge block; 40, second fixing seat; 41, clamping seat; 42, hydraulic cylinder; 43, fixing strip; 44, wedge strip; 45, rectangular opening; 46, positioning opening; 47, sliding bar; 48, first positioning rod; 49, second positioning rod. Specific embodiments

[0037] The following specific examples illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0038] As Figures 1-7 Shown is a bridge seismic isolation device with buffering and energy dissipation. A group of first support seats 2 and two groups of second support seats 3 located on both sides of the first support seats 2 are provided at the top of the pier 1. The same bridge body 4 is supported on the first support seat 2 and the two second support seats 3 on the same side together.

[0039] The specific structure of the first support seat 2 is: A connection box 5 is fixedly provided at the top of the pier 1, and the connection box 5 is connected to the bridge body 4 through a cushion block 6. The cushion block 6 has good shock absorption performance and can perform preliminary shock absorption on the bridge body 4 during an earthquake.

[0040] The specific structure of the second support base 3 is as follows: A backing plate 8 is fixedly provided at the top of the bridge pier 1, and a sliding seat 9 is slidably provided on the top of the backing plate 8. A first wedge block 10 is detachably provided in the sliding seat 9, and a second wedge block 11 that cooperates with the first wedge block 10 is provided on one side of the first wedge block 10. An installation plate 13 is inserted into the top of the second wedge block 11, and the installation plate 13 is fixedly provided at the bottom of the bridge body 4. This setting enables the second support base 3 to stably support the bridge body 4 through the cooperation of the first wedge block 10 and the second wedge block 11, and is convenient for replacement.

[0041] In order to consume the vibration energy of the bridge body 4, the device further includes two groups of first dampers 7. The two groups of first dampers 7 are respectively fixedly provided on both sides of the two connection boxes 5, and the output end of the first damper 7 is fixedly connected to the corresponding sliding seat 9. In addition, a second damper 12 corresponding to the installation plate 13 is also fixedly provided at the top of the bridge pier 1, and the output end of the second damper 12 is fixedly connected to the corresponding installation plate 13, so that it can damp and consume the vibration.

[0042] In order to realize the support reset of the bridge body 4 and replace the second support base 3 during the support process, the device further includes a support mechanism. The support mechanism is provided at the top of the bridge pier 1 and is located between the two groups of second support bases 3. The support mechanism includes two fourth wedge blocks 39 slidably provided on the top of the bridge pier 1. A fixing plate 37 corresponding to the fourth wedge blocks 39 is fixedly provided at the top of the bridge pier 1, and a third wedge block 38 that cooperates with the fourth wedge blocks 39 is slidably provided on one side of the fixing plate 37. Two clamping seats 41 are also fixedly provided at the top of the bridge pier 1. A hydraulic cylinder 42 is provided in one of the clamping seats 41. One end of the hydraulic cylinder 42 abuts against the second fixing seat 40, and the oil inlet and outlet of the hydraulic cylinder 42 are connected to an external hydraulic station. When the second support base 3 needs to be replaced, the fourth wedge blocks 39 can be pushed to move by the hydraulic cylinder 42, thereby realizing the reset support of the bridge body 4.

[0043] To fix the first wedge block 10, two groups of positioning posts 30 are provided at the top of the sliding seat 9, and a first jack 29 corresponding to the positioning posts 30 is opened at the bottom of the first wedge block 10. A first fixing seat 14 is fixedly provided on one side of the sliding seat 9, and two first insertion rods 15 are slidably provided through one side of the first fixing seat 14. Second jacks 32 adapted to the first insertion rods 15 are opened on one side of the first wedge block 10 and the positioning posts 30. One end of the first insertion rod 15 can penetrate the first wedge block 10 and insert into the two positioning posts 30 on one side, thereby fixing the first wedge block 10 on the sliding seat 9. In addition, two second insertion rods 34 are slidably provided in the first wedge block 10, one end of the second insertion rod 34 can insert into the positioning posts 30 on the other side, and a second spring 35 is sleeved on the outer wall of the second insertion rod 34. This setting can further increase the connection stability between the first wedge block 10 and the sliding seat 9. When the first insertion rod 15 inserts into the positioning posts 30 on one side, it can push the second insertion rod 34 to insert into the positioning posts 30 on the other side, so as to reduce the moving space of the first insertion rod 15.

[0044] To monitor the wear conditions of the first wedge block 10 and the second wedge block 11, the device further includes a monitoring mechanism. The monitoring mechanism is arranged on the second damper 12 and includes a connecting strip 21 fixedly arranged on the outer wall of the second damper 12. One end of the connecting strip 21 is fixedly provided with a connecting frame 22. A second guiding rod 23 is fixedly arranged in the connecting frame 22. An insertion block 24 is fixedly provided on one side of the second wedge block 11, and the second guiding rod 23 is located in the insertion block 24. A connecting cylinder 25 is fixedly provided at the top of the connecting frame 22. A sliding rod 26 is slidably arranged in the connecting cylinder 25, and a first pulling spring 27 is sleeved on the outer wall of the sliding rod 26. A proximity switch 28 cooperating with the insertion block 24 is fixedly provided at the bottom end of the sliding rod 26, and the proximity switch 28 is connected to an external alarm through a wire. When the first wedge block 10 and the second wedge block 11 are worn to a certain extent, the second wedge block 11 cannot be reset to its original height. At this time, the insertion block 24 will not contact the proximity switch, thereby giving an alarm.

[0045] To further fix the second wedge block 11 and the cushion block 6 after resetting, a sliding block 36 is also slidably arranged on the top of the bridge pier 1. The mutually close ends of the two groups of fixing bars 43 respectively penetrate through the corresponding fixing plates 37 and the third wedge block 38 and are fixedly connected to the sliding block 36. Two sliding bars 47 are fixedly arranged on the top of the sliding block 36. Positioning ports 46 are opened on both sides of the cushion block 6 and the inner side of the second wedge block 11. A first positioning rod 48 that is used in cooperation with the positioning port 46 on the cushion block 6 and a second positioning rod 49 that is used in cooperation with the positioning port 46 on the second wedge block 11 are fixedly arranged on one side of the sliding bar 47. During the movement of the fourth wedge block 39, the sliding bar 47 can be driven to move, so that the first positioning rod 48 and the second positioning rod 49 can be driven to move into the corresponding positioning ports 46. A rectangular port 45 corresponding to the fixing bar 43 is opened at the bottom end of the third wedge block 38. This setting can facilitate the sliding cooperation between the fixing bar 43 and the third wedge block 38.

[0046] To position the second damper 12, a nut ring 19 is threadedly sleeved on the outer wall of the output end of the second damper 12. The nut ring 19 is used in cooperation with the bottom end of the second damper 12 to limit the bridge body 4, so that it can limit the lowest descending position. The nut ring 19 is used in cooperation with the sliding bar 47 through a transmission member to limit the nut ring 19. The transmission member includes two first guide rods 16 fixedly arranged on one side of the second wedge block 11. The same sliding frame 18 is slidably sleeved on the outer walls of the two first guide rods 16. A notch 20 that is used in cooperation with the sliding frame 18 is opened on the outer wall of the nut ring 19. One side of the sliding frame 18 is used in cooperation with the corresponding sliding bar 47. A first spring 17 is sleeved on the outer wall of the first guide rod 16. When it is necessary to release the limit on the nut ring 19, the sliding frame 18 can be pushed to move by the sliding bar 47, so that the sliding frame 18 is moved out of the notch 20, and then the nut ring 19 can be rotated to release the limit on the bridge body 4.

[0047] When the bridge seismic isolation device with buffer energy dissipation is in use, when the bridge body 4 is under pressure, it will move downward. During the downward movement of the bridge body 4, it can cooperate with the connection box 5 to squeeze the cushion block 6, and at the same time can drive the mounting plate 13 to move downward. During the downward movement of the mounting plate 13, it can compress the second damper 12 to buffer and dissipate the energy of the descending power. And during the downward movement of the mounting plate 13, it can also drive the second wedge block 11 to move downward. The downward movement of the second wedge block 11 can squeeze the first wedge block 10 to move. The movement of the first wedge block 10 can drive the sliding seat 9 to move and compress the first damper 7, so that it can buffer and dissipate the descending power again. And through the cooperation of the nut ring 19 and the second damper 12, it can be limited, so that the downward limit of the maximum stroke can be achieved. And during the downward movement of the second wedge block 11, it can also drive the insert block 24 to move downward. During the downward movement of the insert block 24, the sliding rod 26 can move downward under the action of the first spring 27, driving the proximity switch 28 to always contact the insert block 24.

[0048] When the bridge body 4 is not under pressure, the cushion block 6 can drive the bridge body 4 to reset upward, and the first damper 7 can drive the first wedge block 10 to reset and move. The reset movement of the first wedge block 10 can squeeze the second wedge block 11 to move upward, and cooperate with the second damper 12 to drive the mounting plate 13 to reset upward, so as to drive the bridge body 4 to reset upward; when the wear between the first wedge block 10 and the second wedge block 11 is relatively large and they cannot reset to the original height during the upward reset process, until the insert block 24 cannot contact the proximity switch 28 during the upward reset, at this time the external alarm will sound an alarm to prompt the staff to replace.

[0049] When replacing the second wedge block 11, place the hydraulic cylinder 42 on the pier 1 and clamp it between the wedge bar 44 and the second fixed seat 40, and then start the external hydraulic station to drive the hydraulic cylinder 42 to extend. During the extension of the hydraulic cylinder 42, it can drive the fourth wedge block 39 to move. The movement of the fourth wedge block 39 can squeeze the third wedge block 38 to move upward on one side of the fixed plate 37. When the third wedge block 38 contacts the bridge body 4 and continues to move upward, it can drive the bridge body 4 to reset upward to the original height.

[0050] And the movement of the fourth wedge block 39 can drive the two fixed bars 43 to move. The movement of the fixed bars 43 can drive the wedge bar 44 to move. During the movement of the wedge bar 44, it can drive the two first insertion rods 15 to move outward in turn until one end of the first insertion rod 15 completely disengages from the first wedge block 10. At the same time, the second insertion rod 34 can reset under the action of the second spring 35. At this time, the first wedge block 10 can move upward and be taken out, and then the second wedge block 11 can be taken out from the mounting plate 13 for replacement.

[0051] Meanwhile, during the movement of the fixing bar 43, it can push the sliding block 36 to move. The movement of the sliding block 36 can drive the two sliding bars 47 to move, and can drive the first positioning rod 48 and the second positioning rod 49 to move, so that they are respectively stuck in the positioning ports 46 on one side of the cushion block 6 and on one side of the second wedge block 11 to limit them. It can also drive the two fixing bars 43 at the other end to move outwards. The outward movement of the fixing bar 43 can push the sliding frame 18 on the other side to move, so that the sliding frame 18 disengages from the corresponding notch 20. Then rotate the nut ring 19 to make the nut ring 19 move up and down on the second damper 12 and adjust it to the lowest point; replace the second support seats 3 at both ends in turn by the above method.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A bridge anti-seismic device for buffering and dissipating energy, wherein a first support seat (2) for supporting a bridge body (4) and two second support seats (3) respectively located on both sides of the first support seat (2) are provided on the top of the bridge pier (1), characterized in that: include: The first support seat (2) comprises a connection box (5) fixedly arranged on the top of the pier (1), and a cushion block (6) for shock absorption is connected between the connection box (5) and the bridge body (4); The second support seat (3) comprises a pad (8) fixedly arranged on the top of the pier (1), a sliding seat (9) slidably arranged on the top of the pad (8), a first wedge block (10) detachably arranged in the sliding seat (9), a second wedge block (11) arranged on one side of the first wedge block (10), a mounting plate (13) inserted on the top of the second wedge block (11), and the mounting plate (13) fixedly arranged on the bottom of the bridge body (4); Two groups of first dampers (7), the two groups of first dampers (7) are respectively fixedly arranged on both sides of the two connection boxes (5), and the output ends of the first dampers (7) are fixedly connected to the corresponding sliding seats (9) for absorbing the vibration of the bridge body (4); A second damper (12) corresponding to the mounting plate (13) is fixedly provided on the top of the bridge pier (1), and an output end of the second damper (12) is fixedly connected to the corresponding mounting plate (13) for absorbing vibration of the bridge body (4); A support mechanism is arranged on the top of the bridge pier (1) and is located between two groups of second support seats (3), and is used to support and reset the bridge body (4) and replace the second support seats (3) during the support process; The monitoring mechanism is arranged on the second damper (12) and is used to monitor the wear of the first wedge block (10) and the second wedge block (11).

2. A bridge seismic device for buffering and dissipating energy as claimed in claim 1, characterized in that: The support mechanism comprises two fourth wedge blocks (39) slidably arranged on the top of the pier (1); a fixed plate (37) corresponding to the fourth wedge blocks (39) is fixedly arranged on the top of the pier (1); a third wedge block (38) used in conjunction with the fourth wedge block (39) is slidably arranged on one side of the fixed plate (37); two first wedge blocks (10) are fixedly arranged on the top of the pier (1); two clamping seats (41) are fixedly arranged on the top of the pier (1); a hydraulic cylinder (42) is arranged in one of the clamping seats (41); one end of the hydraulic cylinder (42) is in contact with the second fixed seat (40); the oil inlet and outlet of the hydraulic cylinder (42) are connected to an external hydraulic station for supporting the bridge body (4).

3. A bridge seismic device for buffering and dissipating energy as claimed in claim 2, characterized in that: Two groups of positioning posts (30) are provided on the top of the sliding seat (9), a first insertion hole (29) corresponding to the positioning posts (30) is provided at the bottom of the first wedge block (10), a first fixed seat (14) is fixed on one side of the sliding seat (9), two first insertion rods (15) are slidably provided through one side of the first fixed seat (14), a second insertion hole (32) adapted to the first insertion rod (15) is provided on one side of the first wedge block (10) and the positioning post (30), one end of the first insertion rod (15) passes through the first wedge block (10) and is inserted into the two positioning posts (30) on one side, so as to fix the first wedge block (10) on the sliding seat (9).

4. A bridge seismic device for buffering and dissipating energy as claimed in claim 3, characterized in that: Two second plug rods (34) are slidably provided inside the first wedge block (10), one end of the second plug rod (34) is inserted into the positioning column (30) on the other side, the outer wall of the second plug rod (34) is sleeved with a second spring (35), the two ends of the second spring (35) are respectively fixedly connected to the outer wall of one end of the second plug rod (34) and the inner wall of one side of the first wedge block (10), and one side of the second plug rod (34) can be used in conjunction with the first plug rod (15).

5. A bridge seismic device for buffering and dissipating energy as claimed in claim 4, characterized in that: Two fixing bars (43) are fixedly provided through one side of the fourth wedge block (39), and a wedge bar (44) used in conjunction with the first insertion rod (15) is provided on the top of the fixing bar (43). A second tension spring (33) is sleeved on the outer wall of the first insertion rod (15), and two ends of the second tension spring (33) are respectively fixedly connected to the outer wall of one end of the first insertion rod (15) and one side of the first fixed seat (14), so as to drive the first insertion rod (15) to move.

6. The buffering and energy dissipation bridge seismic device according to claim 1, characterized in that: The monitoring mechanism comprises a connecting strip (21) fixedly arranged on the outer wall of the second damper (12), a connecting frame (22) fixedly arranged at one end of the connecting strip (21), a second guide rod (23) fixedly arranged in the connecting frame (22), an insert block (24) fixedly arranged on one side of the second wedge block (11), the second guide rod (23) being located in the insert block (24), a connecting tube (25) fixedly arranged on the top of the connecting frame (22), a sliding rod (26) slidably arranged in the connecting tube (25), a through hole corresponding to the sliding rod (26) being opened at the top of the connecting frame (22), a first tension spring (27) being sleeved on the outer wall of the sliding rod (26), two ends of the first tension spring (27) being fixedly connected to the top outer wall of the sliding rod (26) and the bottom wall of the connecting tube (25) respectively, a proximity switch (28) used in conjunction with the insert block (24) being fixedly arranged at the bottom end of the sliding rod (26), the proximity switch (28) being connected to an external alarm through a wire.

7. The buffering and energy dissipation bridge seismic device according to claim 5, characterized in that: A sliding block (36) is slidably provided on the top of the pier (1); the mutually adjacent ends of the two groups of fixing bars (43) respectively penetrate the corresponding fixing plates (37) and the third wedge block (38) and are fixedly connected to the sliding block (36); two sliding bars (47) are fixedly provided on the top of the sliding block (36); positioning holes (46) are provided on both sides of the cushion block (6) and the inner side of the second wedge block (11); a first positioning rod (48) used in conjunction with the positioning hole (46) on the cushion block (6) is fixedly provided on one side of the sliding bar (47); a second positioning rod (49) used in conjunction with the positioning hole (46) on the second wedge block (11) is fixedly provided on one side of the sliding bar (47), so as to fix the second supporting seat (3) after support.

8. The buffering and energy dissipation bridge seismic device according to claim 7, characterized in that: A nut ring (19) is threadedly sleeved on the outer wall of the output end of the second damper (12); the nut ring (19) is used in conjunction with the bottom end of the second damper (12) to limit the position of the bridge body (4); the nut ring (19) is used in conjunction with a sliding bar (47) via a transmission member to limit the position of the nut ring (19).

9. A bridge seismic device for buffering and dissipating energy as claimed in claim 8, characterized in that: The transmission member comprises two first guide rods (16) fixedly arranged on one side of the second wedge block (11); the outer walls of the two first guide rods (16) are slidably sleeved with a same sliding frame (18); the outer wall of the nut ring (19) is provided with a cutout (20) for use with the sliding frame (18); one side of the sliding frame (18) is used in conjunction with a corresponding sliding bar (47); the outer wall of the first guide rod (16) is sleeved with a first spring (17); the two ends of the first spring (17) are respectively fixedly connected to the outer wall of one end of the first guide rod (16) and one side of the sliding frame (18) for driving the sliding frame (18) to reset and move.

10. The buffering and energy dissipation bridge seismic device according to claim 7, characterized in that: The bottom end of the third wedge block (38) is provided with a rectangular opening (45) corresponding to the fixing strip (43).

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