Health monitoring device for bridge support

Abstract

The invention relates to a health monitoring device for a bridge support, which is applied to the field of bridge support monitoring and is characterized in that circumferential deformation monitoring is carried out on the surface of a support body by utilizing a laser induction ring capable of being movably reset and a laser transmitter capable of being rotationally adjusted; therefore, a judgment basis is provided for follow-up judgment on whether outward bulging of a rubber layer in the support body is uniform or not, the health quality of the support body is judged accordingly, the distance value of a conical ring moving along with a gear ring is detected through a laser ranging sensor, and whether a settlement accident occurs between the support body and a bridge body or not is judged according to the change of the distance value. In addition, a cleaning sponge block can be used for cleaning dust and water on the surface of the laser induction ring, so that the reliability of a detection result of the laser induction ring is guaranteed, a photosensitive belt can be used for assisting in judging whether the bridge body is in a normal state or not after horizontal displacement, and the judgment result serves as one of reference factors for judging the health state of the support body.

Description

Technical Field

[0001] The invention relates to a monitoring device for a bridge bearing, and in particular to a health monitoring device for a bridge bearing applied in the field of bridge bearing monitoring. Background Art

[0002] As an indispensable component of the bridge structure, bridge bearings are responsible for transferring loads and ensuring the displacement and rotation of the bridge span structure. However, during long-term use, bridge bearings may encounter various health problems, which not only affect the normal use of the bridge, but also threaten the safety and service life of the bridge. In order to improve the safety and durability of the bridge, it is particularly important to conduct effective health monitoring of bridge bearings.

[0003] The specification of Chinese utility model patent CN221238320U discloses a bridge bearing health monitoring device. The utility model uses a first bent light stick and a second bent light stick to bend as the bearing moves, and cooperates with the camera body to monitor and attract the attention of the monitoring personnel, so that maintenance personnel are arranged to carry out maintenance. When the displacement is too large, the alarm light and the laser monitoring light will be out of the irradiation range of the alarm light. At this time, the laser monitoring light will directly transmit a signal to the camera body, prompting the staff in front of the monitoring screen, directly reminding the staff to come for maintenance, and the overall structure of the device is simple, real-time monitoring can be achieved, and the consumption cost is low.

[0004] Existing bridge bearing monitoring devices only use vertical and horizontal displacement variables to monitor whether the bridge bearing is healthy, and the vertical displacement variable is monitored when the bridge bearing is separated from the bottom of the bridge and is sinking. When the bridge bearing and the bottom of the bridge are not separated or sinking, the health monitoring of the bridge bearing only relies on horizontal displacement detection, and the horizontal displacement is detected by approaching the exposed electrode sheet. The surface of the electrode sheet is prone to rust, which affects the accuracy of power connection and thus affects the accuracy and reliability of the monitoring results. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to perform effective health monitoring when the bridge bearing is normally connected to the bottom of the bridge.

[0006] In order to solve the above problems, the present invention provides a health monitoring device for a bridge bearing, comprising a bearing body and a bracket installed at the bottom of the bridge body, wherein the bearing body is made of rubber and steel plate, the bearing body is installed at the bottom of the bridge body, and a concrete pad is installed at the bottom of the bearing body, a driving motor and a laser ranging sensor located at a side of the driving motor away from the bearing body and arranged obliquely are installed at the bottom of the bracket, a conical ring is sleeved on the bottom surface of the bearing body, the extended end of the axis where the laser ranging sensor is located is located at the center of the height of the conical ring surface, and a laser ranging sensor is installed on the outer surface of the bearing body. There is a deformation monitoring ring located above the conical ring. The deformation monitoring ring includes an arcuate ring fixedly mounted on the surface of the support body. A groove is provided on the surface of the arcuate ring facing away from the support body. A sliding block is connected to the inner wall of the groove through a spring bar. An arcuate laser sensing ring is connected between the sliding blocks in two adjacent grooves, and the laser sensing ring is slidably engaged with the inside of the groove. A gear is connected to the output end of the drive motor. A gear is meshedly connected to the surface of the gear with a gear ring, and the bottom of the gear ring is in close contact with the top surface of the arcuate ring. A laser emitter is installed on the inner surface of the gear ring, and the laser emitter is located above the laser sensing ring.

[0007] In the above-mentioned health monitoring device for bridge bearings, the uniformity of the outer bulge of the rubber layer inside the bearing body is used to provide a basis for judging the health quality of the bearing body, and a laser ranging sensor is used to judge whether a settlement accident occurs between the bearing body and the bridge body.

[0008] As a further improvement of the present application, the curvature radius of the laser sensing ring is the same as the curvature radius of the arc ring, and in the initial state the laser sensing ring is attached to the surface of the support body, and the vertical axis where the laser emitter is located is located on the side of the laser sensing ring close to the gear ring in the initial state.

[0009] As a further improvement of the present application, a connecting rod is installed at the bottom of the gear ring, and the bottom end of the connecting rod is fixedly connected to the top surface of the conical ring, and the surface of the conical ring and the support body are in close contact.

[0010] As a further improvement of the present application, there is a gap between the surface of the laser emitter and the surface of the support body, and the projection in the vertical direction of the area corresponding to the height of the connecting rod and the laser sensing ring is located outside the laser sensing ring.

[0011] As a further improvement of the present application, it also includes a monitoring and control system, which includes a settlement monitoring module, a deformation monitoring module and an alarm notification module, wherein the settlement monitoring module is connected to the laser ranging sensor signal for monitoring the distance between the laser ranging sensor and the surface of the conical ring, the deformation monitoring module is connected to the laser sensing ring signal for monitoring the uniformity of the vertical compression deformation of the support body surface, and the alarm notification module is connected to the settlement monitoring module and the deformation monitoring module signal for providing a health alarm for the support body.

[0012] As a further improvement of the present application, the gear is located on one side of the extended end of the axis where the laser ranging sensor is located, a follower rod is installed on the inner wall of the gear ring, and the bottom end of the follower rod is connected to a movable block through a self-resetting shaft rod, and a cleaning sponge block in contact with the top surface of the laser sensing ring is installed at the bottom of the movable block, a receiving block is fixedly installed at the bottom of the movable block, and a cavity is provided at the bottom of the movable block, and a movable extrusion block is slidably connected inside the cavity, and the movable extrusion block and the receiving block are respectively located on both sides of the cleaning sponge block, and a spring member whose tail end is connected to the surface of the movable extrusion block is installed on the inner wall of the cavity, and a solid ball is placed in the space formed by the cavity and the movable extrusion block.

[0013] As a further improvement of the present application, the top surface of the arc ring is installed with uneven protrusions, the horizontal axis where the self-resetting shaft is located is located above the arc ring, and the length of the movable extrusion block and the receiving block protruding from the bottom of the movable block is less than the thickness of the cleaning sponge block.

[0014] As another improvement of the present application, the inner wall of the conical ring is provided with an annular groove, a photosensitive belt is placed on the inner wall of the annular groove, the bottom of the photosensitive belt is fixedly connected to the top surface of the concrete pad, the photosensitive belt is made of a light sensor, and the light sensor is connected to the alarm notification module signal.

[0015] As another improved supplement of the present application, the size of the annular groove is larger than the size of the photosensitive belt, and the photosensitive belt is in a shielded state in an initial state.

[0016] In summary, the uniformity of the outer bulge of the rubber layer inside the bearing body can be used to provide a basis for judging the health quality of the bearing body, and the laser ranging sensor can be used to judge whether a settlement accident occurs between the bearing body and the bridge body. In addition, a cleaning sponge can be used to clean the dust and moisture on the surface of the laser sensing ring, and a photosensitive belt can be used to assist in judging whether the horizontal displacement of the bridge body is in a normal state, which can be used as one of the reference factors for judging the health status of the bearing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application; Figure 2 This is a front view structural schematic diagram of the first embodiment of the present application; Figure 3 This is an installation diagram of the support body and the deformation monitoring ring of the first embodiment of the present application; Figure 4 For this application Figure 3 A in the enlarged view; Figure 5 This is an installation diagram of the arc ring, laser induction ring and sliding block of the first embodiment of the present application; Figure 6 This is a state diagram of the laser induction ring that detects the outward expansion state when the gear ring rotates to drive the laser transmitter to rotate in the first embodiment of the present application; Figure 7 This is a schematic diagram of the detection process of the laser ranging sensor according to the first embodiment of the present application; Figure 8 This is a schematic diagram of a state in which the rubber layer inside the support body is uniformly bulging according to the first embodiment of the present application; Fig. 9 This is a schematic diagram of the state in which the rubber layer inside the support body is unevenly bulging in the first embodiment of the present application; Fig.10 This is a schematic diagram of the installation of the follower rod and the arc ring in the first embodiment of the present application; Fig.11 This is an enlarged view of location B of this application; Fig.12 This is a schematic diagram of the motion state of the movable block on the uneven convex surface of the arc-shaped ring according to the first embodiment of the present application; Fig.13 This is a structural diagram of the photosensitive belt according to the second embodiment of the present application.

[0018] Description of the numbers in the figure: 1. Conical ring; 2. Laser ranging sensor; 3. Driving motor; 4. Deformation monitoring ring; 41. Arc ring; 42. Laser sensing ring; 43. Sliding block; 5. Laser emitter; 6. Connecting support rod; 7. Gear ring; 8. Gear; 9. Photosensitive belt; 10. Follower rod; 11. Receiver block; 12. Movable block; 13. Movable extrusion block; 14. Solid ball; 15. Cleaning sponge block; 001. Bridge body; 002. Support body. DETAILED DESCRIPTION

[0019] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0020] The first implementation method: Figure 1-2 A health monitoring device for a bridge bearing is shown, comprising a bearing body 002 and a bracket installed at the bottom of the bridge body 001, wherein the bearing body 002 is made of rubber and steel plate, the bearing body 002 is installed at the bottom of the bridge body 001, and a concrete pad is installed at the bottom of the bearing body 002, and a driving motor 3 and a laser ranging sensor 2 located at a side of the driving motor 3 away from the bearing body 002 and arranged obliquely are installed at the bottom of the bracket; Figure 7It is shown that when the health monitoring of the support body 002 is carried out, if there is no settlement accident between the support body 002 and the bridge body 001, the laser emitted by the laser ranging sensor 2 is projected at a fixed height position on the surface of the conical ring 1, and the measured distance value is a constant value L1. If a settlement accident occurs, the support body 002 will drive the descending part of the conical ring 1, so that the laser emitted by the laser ranging sensor 2 is projected at an upper position on the surface of the conical ring 1. Because the cross-section of the conical ring 1 is conical, as the projection point moves upward, the distance value measured by the laser ranging sensor 2 also increases and becomes L2, so that whether the support body 002 has a settlement accident can be judged by the change in distance, which is one of the items for health monitoring of the support body 002.

[0021] Figure 1-5 A conical ring 1 is sleeved on the bottom surface of the support body 002, and the extended end of the axis where the laser ranging sensor 2 is located is located at the center of the height of the surface of the conical ring 1. A deformation monitoring ring 4 located above the conical ring 1 is installed on the outer surface of the support body 002. The deformation monitoring ring 4 includes an arcuate ring 41 fixedly installed on the surface of the support body 002, and a groove is provided on the surface of the arcuate ring 41 facing away from the support body 002. The inner wall of the groove is connected to a sliding block 43 through a spring bar, and an arc-shaped laser sensing ring 42 is connected between the sliding blocks 43 in two adjacent grooves, and the laser sensing ring 42 is slidably engaged with the inside of the groove. The output end of the drive motor 3 is connected to a gear 8, and the surface of the gear 8 is meshed with a gear ring 7, and the bottom of the gear ring 7 is in contact with the top surface of the arcuate ring 41, and a laser emitter 5 is installed on the inner surface of the gear ring 7, and the laser emitter 5 is located above the laser sensing ring 42.

[0022] The curvature radius of the laser induction ring 42 is the same as that of the arc ring 41 , and in the initial state, the laser induction ring 42 is attached to the surface of the support body 002 , and the vertical axis of the laser emitter 5 is located on the side of the laser induction ring 42 close to the gear ring 7 in the initial state.

[0023] Specifically, when the bridge body 001 is subjected to a large gravity load, the rubber support body 002 will be compressed and deformed in the vertical direction. The rubber layer in the support body 002 will bulge outward in a semicircular shape in the radial direction due to the pressure, while the steel plate remains in its original shape. Therefore, a relatively uniform bulging phenomenon will appear on the surface of the support body 002 ( Figure 8 As shown), at this time, the outer drum of the rubber layer will drive the laser induction ring 42 to move outward, and the laser beam emitted by the laser emitter 5 will be projected on the surface of the arc-shaped laser induction ring 42. At the same time, the drive motor 3 is started, and under the meshing action of the gear 8 and the gear ring 7, the laser emitter 5 is driven to rotate along the surface of the support body 002, and the laser can be projected on the surface of multiple laser induction rings 42 ( Figure 6As shown), according to whether the position point projected by the laser beam on the surface of the laser induction ring 42 is on the circumference of the same radius, it is used to judge the health quality of the rubber layer. When the support body 002 has health abnormalities, that is, when the rubber layer is aged, the uniformity of the outer bulge of the rubber layer will be broken ( Fig. 9 As shown), at this time, there are differences in the projection position points of the laser beams received on the surfaces of the multiple laser sensing rings 42, that is, whether they are on the circumference of the same radius, which is used as one of the items for judging the health status of the support body 002.

[0024] A connecting rod 6 is installed at the bottom of the gear ring 7, and the bottom end of the connecting rod 6 is fixedly connected to the top surface of the conical ring 1, and the surface of the conical ring 1 and the support body 002 are in close contact.

[0025] There is a gap between the surface of the laser emitter 5 and the surface of the support body 002 , and the projection in the vertical direction of the area corresponding to the height of the connecting rod 6 and the laser sensing ring 42 is located outside the laser sensing ring 42 .

[0026] Specifically, when the gear ring 7 rotates, the conical ring 1 connected by the connecting rod 6 will be driven to rotate synchronously, so that the laser ranging sensor 2 can perform circumferential detection on the surface of the conical ring 1. Through multi-point detection and comprehensive judgment, when there is adhesive in some areas of the surface of the conical ring 1 causing the detection distance value measured at individual detection points to exceed L1, the detection will continue until the conical ring 1 rotates one circle, and the distance value measured by the laser ranging sensor 2 after the multi-point detection will be comprehensively compared to avoid misjudgment.

[0027] The laser induction ring 42 is always located at the inner side of the connecting rod 6 , so that the laser induction ring 42 in the expanded state will not be affected by the connecting rod 6 .

[0028] It also includes a monitoring and control system, which includes a settlement monitoring module, a deformation monitoring module and an alarm notification module, wherein the settlement monitoring module is connected to the laser ranging sensor 2 signal for monitoring the distance between the laser ranging sensor 2 and the surface of the conical ring 1, the deformation monitoring module is connected to the laser sensing ring 42 signal for monitoring the uniformity of the vertical compression deformation of the surface of the support body 002, and the alarm notification module is connected to the settlement monitoring module and the deformation monitoring module signal for health alarm of the support body 002.

[0029] Figure 10-11As shown, the gear 8 is located on one side of the extended end of the axis where the laser ranging sensor 2 is located, a follower rod 10 is installed on the inner wall of the gear ring 7, and the bottom end of the follower rod 10 is connected to a movable block 12 through a self-resetting shaft rod, and a cleaning sponge block 15 in contact with the top surface of the laser sensing ring 42 is installed at the bottom of the movable block 12, a receiving block 11 is fixedly installed at the bottom of the movable block 12, and a cavity is provided at the bottom of the movable block 12, and a movable extrusion block 13 is slidably connected inside the cavity, and the movable extrusion block 13 and the receiving block 11 are respectively located on both sides of the cleaning sponge block 15, and a spring member whose tail end is connected to the surface of the movable extrusion block 13 is installed on the inner wall of the cavity, and a solid ball 14 is placed in the space formed by the cavity and the movable extrusion block 13.

[0030] The top surface of the arc ring 41 is provided with uneven protrusions, the horizontal axis of the self-resetting shaft is located above the arc ring 41, and the length of the movable extrusion block 13 and the receiving block 11 protruding from the bottom of the movable block 12 is less than the thickness of the cleaning sponge block 15.

[0031] Specifically, Fig.12 It is shown that, with the rotation of the gear ring 7, the cleaning sponge block 15 will wipe and clean the surface of the passing laser induction ring 42, and can absorb the moisture on the surface to prevent the accumulation of moisture and dust from affecting the detection result of the laser induction ring 42. When the follower rod 10 moves to the transition end of the arc ring 41 and the laser induction ring 42, the movable block 12 and the cleaning sponge block 15 are forced to rotate due to the squeezing effect, so as to overlap the surface of the arc ring 41 and move along the surface of the arc ring 41. When moving, affected by the uneven protrusions on the surface, the entire movable block 12 and the cavity inside it are in a shaking state, so that the solid ball 14 hits the movable squeezing block 13 located in the cavity, thereby vibrating and squeezing the cleaning sponge block 15, and the dust on the surface can be shaken and cleaned, or the absorbed moisture inside can be squeezed and cleaned, thereby realizing the sustainable and effective utilization of the cleaning sponge block 15, and can reduce the use of other related energy mechanisms and reduce the cost of use.

[0032] The second implementation method: Fig.13 It is shown that the inner wall of the conical ring 1 is provided with an annular groove, and a photosensitive belt 9 is placed on the inner wall of the annular groove. The bottom of the photosensitive belt 9 is fixedly connected to the top surface of the concrete pad. The photosensitive belt 9 is made of a light sensor, and the light sensor is connected to the alarm notification module signal.

[0033] The size of the annular groove is larger than that of the photosensitive belt 9, and the photosensitive belt 9 is in a shielded state in an initial state.

[0034] Different from the first embodiment, this embodiment is mainly used to monitor whether there is any health abnormality when horizontal displacement of the support body 002 occurs.

[0035] Specifically, when the support body 002 is subjected to the lateral movement of the bridge body 001 and then undergoes horizontal displacement, the support body 002 will be slightly offset. At this time, the support body 002 originally placed vertically will be offset, driving the arc ring 41 fixedly connected to the surface to be offset accordingly. At this time, the gear ring 7 overlapped on the surface and the conical ring 1 connected through the gear ring 7 will both be slightly displaced. At this time, the fitting contact state between the conical ring 1 and the concrete pad will change, so that the cover body formed by the conical ring 1 originally covering the surface of the photosensitive belt 9 will have a gap with the surface of the concrete pad, so that external light can enter and be projected on the photosensitive belt 9. The surface of the light strip 9 will not immediately alarm after the light sensor detects the presence of light. It is necessary for the light sensor to detect the presence of light for a period of time that exceeds a set threshold (if the lateral displacement of the bridge body 001 is in a recoverable state, it will be recovered within a specified time. After recovery, the light sensor will not detect the presence of external projected light, and after recovery, the laser sensing ring 42 in the first embodiment will continue to be used to detect whether the outer drum of the rubber layer is uniform. If it is uneven, an alarm is required. On the contrary, if it is in an irrecoverable state, the light sensor will continue to detect the presence of external light), then the alarm notification module will be activated for alarm processing.

[0036] In the above process, due to the size difference between the annular groove and the photosensitive belt 9, when the conical ring 1 is tilted and displaced, there is a gap between it and the photosensitive belt 9, thereby ensuring that the light sensor on the surface of the photosensitive belt 9 will not be squeezed and damaged by the inclined inner wall of the conical ring 1.

[0037] In summary, the present application utilizes a movable and resettable laser sensing ring 42 and a rotatable and adjustable laser emitter 5 to perform circular deformation monitoring on the surface of the support body 002, thereby providing a basis for subsequent judgment on whether the outer drum of the rubber layer inside the support body 002 is uniform, thereby judging the health quality of the support body 002, and detecting the distance value of the conical ring 1 that moves following the gear ring 7 through the laser ranging sensor 2, and judging whether a settlement accident occurs between the support body 002 and the bridge body 001 through the change in the distance value. In addition, the cleaning sponge block 15 can be used to clean the dust and moisture on the surface of the laser sensing ring 42 to ensure the reliability of the detection results of the laser sensing ring 42, and the photosensitive belt 9 can also be used to assist in judging whether the horizontal displacement of the bridge body 001 is in a normal state, thereby serving as one of the reference factors for judging the health status of the support body 002.

[0038] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A health monitoring device for a bridge bearing, comprising a bearing body (002) and a bracket installed at the bottom of the bridge body (001), wherein the bearing body (002) is made of rubber and a steel plate, the bearing body (002) is installed at the bottom of the bridge body (001), and a concrete pad is installed at the bottom of the bearing body (002), characterized in that: The bottom of the support is provided with a driving motor (3) and a laser distance measuring sensor (2) which is located on a side of the driving motor (3) away from the support body (002) and is arranged obliquely; a conical ring (1) is sleeved on the bottom surface of the support body (002); an extended end of the axis of the laser distance measuring sensor (2) is located at a central position of the surface height of the conical ring (1); a deformation monitoring ring (4) is installed on the outer surface of the support body (002) and is located above the conical ring (1); the deformation monitoring ring (4) comprises an arcuate ring (41) fixedly mounted on the surface of the support body (002); the arcuate ring (41) is away from the support body A groove is provided on the surface of the body (002), and a sliding block (43) is connected to the inner wall of the groove via a spring bar. An arc-shaped laser induction ring (42) is connected between the sliding blocks (43) in two adjacent grooves, and the laser induction ring (42) is slidably engaged with the inside of the groove. The output end of the drive motor (3) is connected to a gear (8), and the surface of the gear (8) is meshingly connected to a gear ring (7), and the bottom of the gear ring (7) is in close contact with the top surface of the arc-shaped ring (41). A laser emitter (5) is installed on the inner surface of the gear ring (7), and the laser emitter (5) is located above the laser induction ring (42).

2. A health monitoring device for a bridge bearing according to claim 1, characterized in that: The radius of curvature of the laser induction ring (42) is the same as the radius of curvature of the arc ring (41), and in an initial state, the laser induction ring (42) is attached to the surface of the support body (002), and in an initial state, the vertical axis where the laser emitter (5) is located is located on a side of the laser induction ring (42) close to the gear ring (7).

3. A health monitoring device for a bridge bearing according to claim 1, characterized in that: A connecting rod (6) is installed at the bottom of the gear ring (7), and the bottom end of the connecting rod (6) is fixedly connected to the top surface of the conical ring (1), and the surface of the conical ring (1) and the support body (002) are in close contact.

4. A health monitoring device for a bridge bearing according to claim 3, characterized in that: There is a gap between the surface of the laser emitter (5) and the surface of the support body (002), and the projection in the vertical direction of the area at the corresponding height of the connecting support rod (6) and the laser induction ring (42) is located outside the laser induction ring (42).

5. The health monitoring device for a bridge bearing according to claim 1, characterized in that: The system also includes a monitoring and control system, the monitoring and control system including a settlement monitoring module, a deformation monitoring module and an alarm notification module, wherein the settlement monitoring module is connected to the laser distance sensor (2) by signal and is used to monitor the distance between the laser distance sensor (2) and the surface of the conical ring (1); the deformation monitoring module is connected to the laser sensing ring (42) by signal and is used to monitor the uniformity of the vertical compression deformation of the surface of the support body (002); and the alarm notification module is connected to the settlement monitoring module and the deformation monitoring module by signal and is used to provide a health alarm for the support body (002).

6. A health monitoring device for a bridge bearing according to claim 1, characterized in that: The gear (8) is located on one side of the extended end of the axis where the laser ranging sensor (2) is located. A follower rod (10) is installed on the inner wall of the gear ring (7). The bottom end of the follower rod (10) is connected to a movable block (12) via a self-resetting shaft rod. A cleaning sponge block (15) in contact with the top surface of the laser sensing ring (42) is installed at the bottom of the movable block (12). A receiving block (11) is fixedly installed at the bottom of the movable block (12), and a cavity is provided at the bottom of the movable block (12). A movable extrusion block (13) is slidably connected inside the cavity. The movable extrusion block (13) and the receiving block (11) are respectively located on both sides of the cleaning sponge block (15). A spring member whose tail end is connected to the surface of the movable extrusion block (13) is installed on the inner wall of the cavity. A solid ball (14) is placed in the space formed by the cavity and the movable extrusion block (13).

7. A health monitoring device for a bridge bearing according to claim 6, characterized in that: The top surface of the arc ring (41) is provided with uneven protrusions, the horizontal axis of the self-resetting shaft rod is located above the arc ring (41), and the length of the parts of the movable extrusion block (13) and the receiving block (11) protruding from the bottom of the movable block (12) is less than the thickness of the cleaning sponge block (15).

8. The health monitoring device for a bridge bearing according to claim 5, characterized in that: The inner wall of the conical ring (1) is provided with an annular groove, a photosensitive belt (9) is placed on the inner wall of the annular groove, the bottom of the photosensitive belt (9) is fixedly connected to the top surface of the concrete pad, the photosensitive belt (9) is made of a light sensor, and the light sensor is connected to the alarm notification module signal.

9. A health monitoring device for a bridge bearing according to claim 8, characterized in that: The size of the annular groove is larger than the size of the photosensitive belt (9), and the photosensitive belt (9) is in a shielded state in an initial state.

Images