Dynamic load intelligent monitoring bridge support structure

Abstract

The application discloses a dynamic load intelligent monitoring bridge support structure and relates to the field of bridge supports. The bridge support structure comprises a top plate and a bottom plate, the top plate and the bottom plate are fixedly connected with the upper structure and the lower structure of a bridge respectively, the bottom plate is provided with rubber blocks at the top end, the rubber blocks are fixedly provided with pads at the top end, the pads are fixedly provided with polytetrafluoroethylene plates at the top end, and the top plate is provided with sliding press blocks capable of moving synchronously with the top plate. The movable blocks are arranged in the installation grooves, the movable blocks apply force on the second pressure sensors in the moving direction, if the friction resistance between the mirror steel plate and the polytetrafluoroethylene plate increases, the stress of the second pressure sensors in the corresponding direction will increase, therefore, the stress of the second pressure sensors can reflect the friction resistance of the mirror steel plate when moving on the polytetrafluoroethylene plate, and the aging and abrasion of the mirror steel plate and the polytetrafluoroethylene plate during use can be monitored.

Description

Technical Field

[0001] This invention relates to the field of bridge bearings, specifically to a dynamic load intelligent monitoring bridge bearing structure. Background Technology

[0002] Bridge bearings are components used to connect bridge piers and the main body of the bridge. While bearing the weight of the bridge, they also act as a buffer. During use, they can reliably transfer the load and deformation borne by the superstructure of the bridge to the piers, thereby protecting the bridge.

[0003] The main body of the bridge bearing is made of rubber, which can buffer the relative displacement when the upper and lower structures of the bridge move relative to each other by its own deformation capacity, so as to ensure that the overall structure of the bridge is not damaged. The stress condition of the rubber component also reflects the load and deformation of the bridge. Therefore, it is necessary to monitor this stress condition during use, such as the dynamic load intelligent monitoring bridge bearing with publication number CN217078389U in the prior art.

[0004] In the prior art, the support plate and rubber block of the bridge bearing are not fixedly connected, but are slidably connected by steel plate and polytetrafluoroethylene plate. The friction between the two is small, and the horizontal displacement between the upper and lower structures of the bridge can be buffered by horizontal sliding. However, the steel plate and polytetrafluoroethylene plate will inevitably age and wear due to long-term use, and the friction between the two will increase as a result. However, the prior art cannot monitor the friction between the two in real time. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dynamic load intelligent monitoring bridge bearing structure. By setting a movable block inside the mounting groove, the force of the movable block is applied to a second pressure sensor in its direction of movement. If the frictional resistance between the mirror steel plate and the polytetrafluoroethylene plate increases, the force on the second pressure sensor in the corresponding direction will increase. Therefore, the force on the second pressure sensor can reflect the frictional resistance when the mirror steel plate moves on the polytetrafluoroethylene plate, thereby monitoring the aging and wear of the mirror steel plate and the polytetrafluoroethylene plate during use, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a dynamic load intelligent monitoring bridge bearing structure, comprising a top plate and a bottom plate, the top plate and the bottom plate being fixedly connected to the superstructure and substructure of the bridge, respectively. A rubber block is provided at the top of the bottom plate, and the rubber block uses its elasticity to play a buffering role. A pad is fixedly provided at the top of the rubber block, and a polytetrafluoroethylene plate is fixedly provided at the top of the pad. A sliding pressure block that can move synchronously with the top plate is provided at the bottom of the top plate. A mirror steel plate is fixedly provided at the bottom end of the sliding pressure block, which contacts the top of the polytetrafluoroethylene plate. The friction between the mirror steel plate and the polytetrafluoroethylene plate is small. The sliding block has an installation groove at its top, and a movable block is provided inside the installation groove. An extension block is fixedly provided at the top of the movable block, and the top of the extension block extends to the top of the installation groove and is fixedly connected to the bottom of the top plate. Therefore, the movable block can move synchronously with the top plate. A plurality of balls are fixedly provided at the bottom of the movable block, which are in contact with the bottom of the installation groove. The balls reduce the friction between the movable block and the inner wall of the installation groove. The top of the base plate is fixedly equipped with a controller and a network module located at the controller connection end. The network module can wirelessly transmit detection data via the network. Multiple protrusions are fixedly provided on the inner wall of the mounting groove. A second pressure sensor is fixedly provided on the side of the protrusion facing the movable block, which is in contact with the outer end of the movable block. The second pressure sensor is located at the controller input end. The movable block has the ability to move horizontally, but it cannot move due to the restriction of the protrusions and the second pressure sensor.

[0007] Furthermore, the top of the sliding block is provided with two baffles by bolts. The baffles cover the top of the mounting groove, and the two baffles are spliced ​​together to form a complete ring for fixing the movable block.

[0008] Furthermore, a steel basin is fixedly provided at the top of the base plate, and the rubber block is located inside the steel basin. The steel basin can restrict the deformation of the rubber block. The top of the pad extends to the top of the steel basin, and multiple connecting rods are fixedly provided at the bottom of the base plate. The connecting rods can be inserted downward into the pad stones of the pier to fix the base plate.

[0009] Furthermore, a plurality of first pressure sensors are embedded in the outer end of the steel basin. The first pressure sensors are located at the input end of the controller. One end of the first pressure sensor extends into the interior of the steel basin and contacts the outer end of the rubber block. The first pressure sensors can detect the pressure on the rubber block.

[0010] Furthermore, a dust suction channel is provided between the top plate and the bottom plate. The dust suction channel is located on the outside of the connection between the mirror steel plate and the polytetrafluoroethylene plate. An annular groove is opened on the inner side of the dust suction channel. Dust and impurities can be sucked into the dust suction channel through the annular groove. Multiple connecting arms are fixedly provided at the top of the dust suction channel. The top of the connecting arms is detachably connected to the bottom of the top plate.

[0011] Furthermore, negative pressure components are provided on both sides of the dust suction channel. The negative pressure components include a retractable corrugated tube. A bottom tube is fixedly provided at the bottom end of the corrugated tube. End plates are provided at the top end of the corrugated tube and the bottom end of the bottom tube. The two end plates are fixedly provided at the outer ends of the top plate and the bottom plate, respectively. When the top plate and the bottom plate are relatively displaced, the corrugated tube will be stretched or compressed.

[0012] Furthermore, the corrugated pipe is fixedly connected to the end plate at its top end, and the bottom end of the bottom pipe is fixedly provided with an installation ring, which is detachably connected to the end plate at the bottom end of the bottom pipe. The inner wall of the bottom tube is equipped with a filter screen that filters the absorbed dust for easy cleaning. An air intake hose with a one-way valve is fixedly installed at the outer end of the bottom tube. One end of the air intake hose is fixedly connected to the dust suction channel. An exhaust pipe with a one-way valve is fixedly installed on the inner wall of the bottom tube. The filter screen is located between the air intake hose and the exhaust pipe, between the air intake and the air outlet, so that it can easily filter dust.

[0013] Compared with the prior art, the present invention provides a dynamic load intelligent monitoring bridge bearing structure, which has the following beneficial effects: By setting a movable block inside the mounting groove, the movable block drives the sliding pressure block and the mirror steel plate to slide on the top of the PTFE plate. The force of the movable block is applied to the second pressure sensor in its direction of movement. If the frictional resistance between the mirror steel plate and the PTFE plate increases, the force on the second pressure sensor in the corresponding direction will increase. Therefore, the force on the second pressure sensor can reflect the frictional resistance when the mirror steel plate moves on the PTFE plate, thereby monitoring the aging and wear of the mirror steel plate and the PTFE plate during use, so that timely maintenance can be carried out when the aging and wear are serious.

[0014] By setting up a negative pressure component, the relative movement of the top and bottom plates controls the stretching or compression of the corrugated pipe, causing a change in its internal air pressure. When the air pressure inside the corrugated pipe decreases, the dust suction channel generates suction, which sucks away the dust on the contact surface between the mirror steel plate and the PTFE plate through the annular groove. This avoids increasing the friction between the mirror steel plate and the PTFE plate and also prevents wear on the mirror steel plate and the PTFE plate. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of the present invention; Figure 2 This is a bottom view of the structure of the present invention; Figure 3 This is an exploded view of the steel basin and sliding pressure block of the present invention; Figure 4 This is a structural diagram of the active block of the present invention; Figure 5 This is a cross-sectional view of the sliding pressure block of the present invention; Figure 6 This is a cross-sectional view of the steel basin of the present invention; Figure 7 This is a structural diagram of the negative pressure component and dust suction channel of the present invention; Figure 8 This is a cross-sectional view of the negative pressure component of the present invention; Figure 9 This is a system diagram of the present invention.

[0016] In the diagram: 1. Top plate; 2. Bottom plate; 3. Controller; 4. Network module; 5. Negative pressure component; 501. Corrugated pipe; 502. Bottom pipe; 503. End plate; 504. Mounting ring; 505. Filter screen; 506. Inlet hose; 507. Exhaust pipe; 6. Dust suction channel; 601. Annular groove; 602. Connecting arm; 7. Steel basin; 8. Connecting rod; 9. Sliding pressure block; 10. Mounting groove; 11. Cover plate; 12. Movable block; 13. Extension block; 14. Mirror steel plate; 15. First pressure sensor; 16. Rubber block; 17. Pad plate; 18. Polytetrafluoroethylene plate; 19. Ball bearing; 20. Protrusion; 21. Second pressure sensor. Detailed Implementation

[0017] To make the technical means, creative features, and achieved objectives and effects of this invention readily understandable, the invention will be further described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0018] like Figure 1-9 As shown, the present invention provides a dynamic load intelligent monitoring bridge support structure, including a top plate 1 at the top and a bottom plate 2 at the bottom. The top plate 1 and the bottom plate 2 are fixedly connected to the superstructure and substructure of the bridge, respectively. A rubber block 16 is provided at the top of the bottom plate 2, and the rubber block 16 uses its elasticity to play a buffering role. The top of the rubber block 16 is fixedly provided with a pad 17, the top of the pad 17 is fixedly provided with a polytetrafluoroethylene plate 18, the bottom of the top plate 1 is provided with a sliding pressure block 9 that can move synchronously with the top plate 1, the bottom end of the sliding pressure block 9 is fixedly provided with a mirror steel plate 14 that contacts the top of the polytetrafluoroethylene plate 18, and the friction between the mirror steel plate 14 and the polytetrafluoroethylene plate 18 is small. A top plate 1 is installed at the bottom of the superstructure of the bridge, and a bottom plate 2 is installed on the pad stone at the top of the pier. The rubber block 16 placed between the two is elastic and can buffer the load applied to the pier by the superstructure of the bridge. The polytetrafluoroethylene plate 18 at the top of the pad plate 17 can contact the mirror steel plate 14 at the bottom of the sliding pressure block 9. The friction between the two is small. When horizontal displacement occurs between the superstructure and the substructure of the bridge, the mirror steel plate 14 can slide on the top of the polytetrafluoroethylene plate 18 to avoid damage to the bridge caused by horizontal displacement.

[0019] During use, the friction between the mirror steel plate 14 and the polytetrafluoroethylene plate 18 needs to be monitored, such as... Figure 1 , 3 As shown in Figures 4, 5, and 9, the top of the sliding pressure block 9 is provided with an installation groove 10, and a movable block 12 is provided inside the installation groove 10. An extension block 13 is fixedly provided at the top of the movable block 12. The top of the extension block 13 extends to the top of the installation groove 10 and is fixedly connected to the bottom of the top plate 1. Therefore, the movable block 12 can move synchronously with the top plate 1. A plurality of balls 19 are fixedly provided at the bottom of the movable block 12, which are in contact with the bottom of the installation groove 10. The balls 19 reduce the friction between the movable block 12 and the inner wall of the installation groove 10. The top of the base plate 2 is fixedly equipped with a controller 3 and a network module 4 located at the connection end of the controller 3. The network module 4 can wirelessly transmit the detection data via the network. Multiple protrusions 20 are fixedly provided on the inner wall of the mounting groove 10. A second pressure sensor 21 is fixedly provided on the side of the protrusion 20 facing the movable block 12, which is in contact with the outer end of the movable block 12. The second pressure sensor 21 is located at the input end of the controller 3. The movable block 12 has the ability to move horizontally, but it cannot move due to the restriction of the protrusions 20 and the second pressure sensor 21.

[0020] When the top plate 1 moves horizontally relative to the bottom plate 2, the top plate 1 will drive the movable block 12 to move through the extension block 13. The movable block 12 located inside the mounting groove 10 will drive the sliding pressure block 9 to move, thus causing the mirror steel plate 14 to slide on the top of the polytetrafluoroethylene plate 18. The movable block 12 has the ability to move horizontally inside the mounting groove 10, but it cannot move due to the restriction of the protrusion 20 and the second pressure sensor 21. During the displacement process, there is a certain frictional resistance between the mirror steel plate 14 and the polytetrafluoroethylene plate 18. If this frictional resistance is large, it will be more difficult for the movable block 12 to drive the sliding pressure block 9 to move. The force of the movable block 12 is applied to the second pressure sensor 21 in its moving direction. Therefore, the force of the second pressure sensor 21 can reflect the frictional resistance when the mirror steel plate 14 moves on the polytetrafluoroethylene plate 18, thereby monitoring the aging and wear of the mirror steel plate 14 and the polytetrafluoroethylene plate 18 during use, so that timely maintenance can be carried out when the aging and wear are serious.

[0021] During use, the stress on the rubber block 16 needs to be monitored, such as... Figure 1 , 3 As shown in Figures 6 and 9, the top of the sliding block 9 is provided with two baffles 11 by bolts. The baffles 11 cover the top of the mounting groove 10, and the two baffles 11 are spliced ​​together to form a complete ring for fixing the movable block 12.

[0022] A steel basin 7 is fixedly provided at the top of the base plate 2. The rubber block 16 is located inside the steel basin 7. The steel basin 7 can restrict the deformation of the rubber block 16. The top of the pad plate 17 extends to the top of the steel basin 7. A plurality of connecting rods 8 are fixedly provided at the bottom of the base plate 2. The connecting rods 8 can be inserted downward into the pad stone of the pier to fix the base plate 2 and increase the connection strength between the base plate 2 and the pad stone.

[0023] Multiple first pressure sensors 15 are embedded in the outer end of the steel basin 7. The first pressure sensors 15 are located at the input end of the controller 3. One end of the first pressure sensor 15 extends into the interior of the steel basin 7 and contacts the outer end of the rubber block 16. The first pressure sensor 15 can detect the pressure condition of the rubber block 16.

[0024] A steel basin 7 is installed at the outer end of the rubber block 16. When the superstructure of the bridge applies downward pressure, the rubber block 16 will deform due to the pressure. The elasticity of the rubber block 16 buffers the pressure. During the pressure process, the rubber block 16 will spread outward. The presence of the steel basin 7 blocks the spread of the rubber block 16. When the rubber block 16 is deformed by pressure, it squeezes the inner wall of the steel basin 7 outward. The first pressure sensor 15 fixed on the steel basin 7 is also under pressure. The greater the pressure on the rubber block 16, the greater the force on the first pressure sensor 15. Therefore, the first pressure sensor 15 can monitor the stress of the rubber block 16 and transmit the monitoring data through the network to detect the stress of the support structure in real time.

[0025] The presence of dust between the mirror steel plate 14 and the polytetrafluoroethylene plate 18 will increase frictional resistance and thus increase wear on both surfaces. Figure 1 , 7 As shown, a dust suction channel 6 is provided between the top plate 1 and the bottom plate 2. The dust suction channel 6 is located on the outside of the connection between the mirror steel plate 14 and the polytetrafluoroethylene plate 18. An annular groove 601 is provided on the inner side of the dust suction channel 6. Dust and impurities can be sucked into the dust suction channel 6 through the annular groove 601. A plurality of connecting arms 602 are fixedly provided at the top of the dust suction channel 6. The top of the connecting arms 602 is detachably connected to the bottom of the top plate 1.

[0026] A dust suction channel 6 is provided on the outer side of the contact surface between the mirror steel plate 14 and the polytetrafluoroethylene plate 18. The annular groove 601 on the inner side of the dust suction channel 6 faces the contact surface between the mirror steel plate 14 and the polytetrafluoroethylene plate 18. When a negative pressure is generated inside the dust suction channel 6, the suction force will cause the dust and impurities on the contact surface between the mirror steel plate 14 and the polytetrafluoroethylene plate 18 to be sucked into the dust suction channel 6, thereby avoiding wear on the mirror steel plate 14 and the polytetrafluoroethylene plate 18.

[0027] When the top plate 1 and the bottom plate 2 undergo relative displacement, suction is automatically generated, such as... Figure 1 , 7 As shown in Figure 8, negative pressure components 5 are provided on both sides of the dust suction channel 6. The negative pressure components 5 include a retractable corrugated tube 501. A bottom tube 502 is fixedly provided at the bottom end of the corrugated tube 501. An end plate 503 is provided at the top end of the corrugated tube 501 and the bottom end of the bottom tube 502. The two end plates 503 are respectively fixed at the outer ends of the top plate 1 and the bottom plate 2. When the top plate 1 and the bottom plate 2 are relatively displaced, the corrugated tube 501 will be stretched or compressed.

[0028] The corrugated pipe 501 is fixedly connected to the end plate 503 at its top end, and the bottom pipe 502 is fixedly provided with an installation ring 504 at its bottom end. The installation ring 504 is detachably connected to the end plate 503 at the bottom end of the bottom pipe 502. The two end plates 503 of the two negative pressure components 5 are fixed to the outer ends of the top plate 1 and the bottom plate 2 respectively. When the relative displacement occurs between the upper and lower structures of the bridge, the top plate 1 will move relative to the bottom plate 2, and the two end plates 503 will move relative to each other, and the distance between them will change. The end plates 503 will then cause the bellows 501 to be stretched or compressed. Stretching will cause the volume of the bellows 501 to increase and the internal air pressure to decrease, while compression will cause the volume of the bellows 501 to decrease and the internal air pressure to increase.

[0029] Suction is generated by the pressure change in the bellows 501, such as Figure 1 , 7 As shown in Figure 8, the inner wall of the bottom pipe 502 is provided with a filter screen 505, which can filter the absorbed dust for easy cleaning. The outer end of the bottom pipe 502 is fixedly provided with an air inlet hose 506 with a one-way valve. One end of the air inlet hose 506 is fixedly connected to the dust suction channel 6. The inner wall of the bottom pipe 502 is fixedly provided with an exhaust pipe 507 with a one-way valve. The filter screen 505 is located between the air inlet hose 506 and the exhaust pipe 507, between the air inlet and the air outlet, so that it can easily filter dust.

[0030] The bottom pipe 502 and the dust suction channel 6 are connected by an air intake hose 506. The corrugated pipe 501 is connected to the bottom pipe 502. When the air pressure inside the corrugated pipe 501 decreases, the air inside the dust suction channel 6 is drawn into the bottom pipe 502 through the air intake hose 506, and dust also enters the bottom pipe 502. When the air pressure inside the corrugated pipe 501 increases, the air inside the corrugated pipe 501 is discharged through the exhaust pipe 507. During the air discharge process, it needs to pass through the filter screen 505, which filters out the dust in the air, and only the air is discharged outward.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A dynamic load intelligent monitoring bridge bearing structure, comprising a top plate (1) and a bottom plate (2), wherein a rubber block (16) is provided at the top of the bottom plate (2), a pad (17) is fixedly provided at the top of the rubber block (16), and a polytetrafluoroethylene plate (18) is fixedly provided at the top of the pad (17), characterized in that: The bottom of the top plate (1) is provided with a sliding block (9) that can move synchronously with the top plate (1), and the bottom end of the sliding block (9) is fixed with a mirror steel plate (14) that contacts the top of the polytetrafluoroethylene plate (18). The sliding block (9) has an installation groove (10) at its top. The installation groove (10) has a movable block (12) inside. The movable block (12) has an extension block (13) fixedly attached to its top. The extension block (13) extends to the top of the installation groove (10) and is fixedly connected to the bottom of the top plate (1). The bottom of the movable block (12) has a plurality of balls (19) that are in contact with the bottom of the installation groove (10). The top of the base plate (2) is fixedly provided with a controller (3) and a network module (4) provided at the connection end of the controller (3). Multiple protrusions (20) are fixedly provided on the inner wall of the mounting groove (10). A second pressure sensor (21) is fixedly provided on the side of the protrusion (20) facing the movable block (12) and in contact with the outer end of the movable block (12). The second pressure sensor (21) is provided at the input end of the controller (3).

2. The dynamic load intelligent monitoring bridge support structure according to claim 1, characterized in that: The top of the sliding block (9) is provided with two baffles (11) by bolts. The baffles (11) cover the top of the mounting groove (10), and the two baffles (11) are spliced ​​together to form a complete ring.

3. The dynamic load intelligent monitoring bridge support structure according to claim 1, characterized in that: The bottom plate (2) is fixedly provided with a steel basin (7), the rubber block (16) is located inside the steel basin (7), the top of the pad (17) extends to the top of the steel basin (7), and the bottom of the bottom plate (2) is fixedly provided with multiple connecting rods (8).

4. The dynamic load intelligent monitoring bridge support structure according to claim 3, characterized in that: The outer end of the steel basin (7) is inlaid with a plurality of first pressure sensors (15). The first pressure sensors (15) are located at the input end of the controller (3). One end of the first pressure sensor (15) extends into the interior of the steel basin (7) and contacts the outer end of the rubber block (16).

5. The dynamic load intelligent monitoring bridge support structure according to claim 1, characterized in that: A dust suction channel (6) is provided between the top plate (1) and the bottom plate (2). The dust suction channel (6) is located on the outside of the connection between the mirror steel plate (14) and the polytetrafluoroethylene plate (18). An annular groove (601) is provided on the inner side of the dust suction channel (6). Multiple connecting arms (602) are fixedly provided at the top of the dust suction channel (6). The top of the connecting arm (602) is detachably connected to the bottom of the top plate (1).

6. The dynamic load intelligent monitoring bridge support structure according to claim 5, characterized in that: Negative pressure components (5) are provided on both sides of the dust suction channel (6). The negative pressure components (5) include a retractable corrugated pipe (501). A bottom pipe (502) is fixedly provided at the bottom end of the corrugated pipe (501). An end plate (503) is provided at the top end of the corrugated pipe (501) and the bottom end of the bottom pipe (502). The two end plates (503) are respectively fixed at the outer ends of the top plate (1) and the bottom plate (2).

7. The dynamic load intelligent monitoring bridge support structure according to claim 6, characterized in that: The corrugated pipe (501) is fixedly connected to the end plate (503) at its top end, and the bottom pipe (502) is fixedly provided with an installation ring (504), which is detachably connected to the end plate (503) at the bottom end of the bottom pipe (502). The inner wall of the bottom tube (502) is provided with a filter screen (505) that plays a filtering role. The outer end of the bottom tube (502) is fixedly provided with an air intake hose (506) with a one-way valve. One end of the air intake hose (506) is fixedly connected to the dust suction channel (6). The inner wall of the bottom tube (502) is fixedly provided with an exhaust pipe (507) with a one-way valve. The filter screen (505) is located between the air intake hose (506) and the exhaust pipe (507).

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