Device and method for automatically monitoring bridge support slippage

Abstract

The present invention discloses an automatic monitoring device for the slippage of a bridge support, which relates to the field of bridge detection technology and includes a bridge pier. The outer surface of the bridge pier is fixedly connected with a sliding component and a monitoring component, and the monitoring component includes a mounting frame and a fixing rod. In the present invention, a visual sensor and a displacement sensor can detect the slippage of the bridge support body in different directions using different methods when following the rotation of a supporting ring. The structure of the annular convex lens is thicker in the middle part and thinner at the edge, so the bridge support body will be magnified, and the convex eyepiece can further magnify the real image formed by the annular convex lens, and make the final image within the range of the visual sensor shooting, and become an upright dotted line. Its principle can refer to the principle of a telescope, so there is no need for workers to work at high altitudes, it has the effect of automatic monitoring, and improves safety.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge detection, and in particular to an automatic monitoring device and method for bridge support slippage. Background Art

[0002] The bridge support slip refers to the horizontal displacement of the bridge superstructure at the support relative to the bridge substructure under the action of various external forces. The magnitude of the support slip reflects the stress state and deformation of the bridge structure. If the slip is too large, it may indicate that there is an abnormality in the bridge structure, such as support damage, uneven settlement of the substructure, and uneven stress on the superstructure. Therefore, monitoring the bridge support slip can timely understand the operating status of the bridge and provide a basis for bridge maintenance and management.

[0003] Existing, such as Chinese patent publication number: CN111780672A, discloses an automatic monitoring device for the slippage of highway bridge bearings, which belongs to the field of engineering construction monitoring. The present invention includes a scale projection device, a camera, a self-propelled track device, a motor and a battery, and a solar panel. The scale projection device projects the scale image onto the surface of the bridge bearing, and takes pictures or videos through a camera fixed on a track trolley, reads the scale readings at the original corresponding positions of the upper and lower plates of the bridge bearing in the picture or video, and then calculates the amount of bearing slippage. A metal trough track is reasonably arranged and installed on the bottom surface of the bridge beam body, and the track trolley is driven by the motor to move with the scale projection device and the camera, and the bearing slippage changes of multiple surfaces of multiple bridge bearings are observed in turn, thereby achieving the purpose of automatic monitoring. The solar panel is used to charge the battery, and then the battery provides power to the motor, camera and scale projection device.

[0004] In the prior art, there are two common ways to detect the slippage of bridge bearings: first, manually holding the detection equipment, and using lifting equipment to send the inspectors to the bearings for inspection. This detection method has great safety hazards, and each inspection requires professional staff to operate. It is greatly affected by the environmental weather and the detection is difficult. Therefore, the detection interval is long, and it is difficult to perform high-frequency regular inspections. Second, a moving adsorption trolley moves under the bridge for inspection. This method has high requirements for equipment, and the mobile trolley may fall off from the bottom of the bridge, causing great losses. Therefore, a method that can ensure safety and facilitate detection is needed to detect the slippage of bridge bearings.

[0005] Therefore, we propose an automatic monitoring device and method for bridge bearing slippage in order to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic monitoring device and method for bridge bearing slippage, so as to solve the problem of lack of safety of the existing bridge bearing slippage detection method proposed in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic monitoring device for the slippage of a bridge support, comprising a bridge pier, wherein the outer surface of the bridge pier is fixedly connected with a sliding component and a monitoring component, the monitoring component comprises a mounting frame and a fixing rod, the outer surface of the mounting frame is fixedly connected with a plurality of support rods, a fixing ring is fixedly connected between one ends of the plurality of support rods, an annular convex lens is fixedly connected to the top of the fixing ring, the middle part of the annular convex lens is thicker than the edge so that refraction and convergence effects can be produced when light passes through, a reinforcing ring is fixedly connected to the top of the annular convex lens, and one end of the fixing rod is fixedly connected with a convex eyepiece, and the convex eyepiece is used to further magnify the real image formed by the annular convex lens.

[0008] Preferably, the top of the bridge pier is fixedly connected to a bridge support body, and the bridge support body is used to provide stable support for the bridge beam body, and the top of the bridge support body is fixedly connected to the bridge deck.

[0009] Preferably, the installation frame is fixedly installed on the outer surface of the pier near the top, and the fixing ring and the reinforcement ring are both made of stainless steel metal.

[0010] Preferably, the sliding assembly includes a support frame, and the support frame is used to enhance support. The support frame is fixedly connected to the outside of the pier, and a plurality of reinforcing rods are fixedly connected to the outer surface of the support frame. A support ring is fixedly connected between one ends of the plurality of reinforcing rods. A limiting groove is provided on the outer surface of the support ring, and the inner wall of the limiting groove is rotatably connected to a limiting slip ring. The outer surface of the limiting slip ring is fixedly connected to a supporting ring.

[0011] Preferably, a support column is fixedly connected to the top of the supporting ring near one side, a visual sensor is set at one end of the support column, and the visual sensor is used to monitor the slippage of the bridge support body, and the fixing rod is fixedly connected to the bracket of the visual sensor.

[0012] Preferably, a first mounting plate is fixedly connected to the top of the supporting ring near the other side, and a displacement sensor is provided on the top of the first mounting plate, and the displacement sensor is used to capture small displacement changes of the bridge bearing body.

[0013] Preferably, a second mounting plate is fixedly connected to the top of the supporting ring near the first mounting plate, and a magnetic isolator is provided on the top of the second mounting plate, and the magnetic isolator is used to resist strong electromagnetic interference to the displacement sensor.

[0014] Preferably, a plurality of driven tooth grooves are provided at the bottom of the supporting ring, a protective cover is fixedly connected to the outer surface of one side of the pier, a driving motor is arranged inside the protective cover, an output shaft of the driving motor is fixedly connected to a driving gear, a rotating groove is provided on one side of the driving gear, and a rotating block is rotatably connected inside the rotating groove.

[0015] Preferably, the outer surface of the rotating block is fixedly connected to a stabilizing plate, the outer surface of the stabilizing plate is fixedly connected to a plurality of connecting rods, the plurality of connecting rods are fixedly connected to the outside of the protective cover, and the outer surface of the driving gear is meshedly connected to the inner walls of a plurality of driven tooth grooves.

[0016] The method for using the automatic monitoring device for bridge bearing slippage includes the following steps:

[0017] S1. Start the drive motor so that the output shaft of the drive motor drives the driving gear to rotate. Since the teeth of the driving gear and the driven gear grooves are correspondingly engaged, the support ring will rotate under the rotation of the driving gear.

[0018] S2. Install the visual sensor on the supporting ring through the support column, and then install the displacement sensor and magnetic isolator on the other side of the supporting ring. Then, the visual sensor and displacement sensor can detect the slippage of the bridge support body in different directions and in different ways as they rotate with the supporting ring. The visual sensor can capture the image of the bridge support body and wirelessly transmit the image information to the inspection staff. The visual sensor can intuitively record the situation of the bridge support body and the surrounding area. By analyzing the continuous images, it can be observed whether the bridge support body has undergone significant displacement.

[0019] S3. The displacement sensor can detect the slippage of the bridge support body. The displacement sensor can continuously monitor the bridge support body and collect the displacement data of the bridge support body in real time. The displacement sensor converts the measured displacement signal into an electrical signal, which is collected and stored by the data acquisition device. When using the sensor, a magnetic isolator is used to prevent external electromagnetic interference from entering the sensor system and affecting the accuracy of the visual sensor and displacement sensor monitoring.

[0020] S4. Finally, the annular convex lens is thicker in the middle and thinner at the edges, so it will magnify the main part of the bridge support. At the same time, the convex eyepiece can further magnify the real image formed by the annular convex lens and make the final image within the range of the visual sensor, which has the effect of automatic monitoring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. When in use, the visual sensor and displacement sensor can detect the slippage of the bridge support body in different directions and in different ways while following the rotation of the support ring. The structure of the annular convex lens is thicker in the middle and thinner at the edge, so it will magnify the main part of the bridge support. The convex eyepiece can further magnify the real image formed by the annular convex lens and make the final image within the range of the visual sensor and become an upright dotted line. Its principle can refer to the principle of the telescope, so there is no need for workers to work at high altitudes, it has the effect of automatic monitoring and improves safety.

[0023] 2. When in use, by starting the drive motor, the driving gear is driven to rotate. The protective cover can prevent rain and dust from eroding the drive motor. By making the driving gear rotate on the outside of the rotating block, the stability and support are improved. Since the teeth of the driving gear and the driven gear grooves are correspondingly engaged, the supporting ring will rotate under the rotation of the driving gear. In addition, the limit slip ring will not fall off when rotating inside the limit groove. The structures of the two are interlocking, which has the advantage of preventing falling off.

[0024] 3. When in use, the visual sensor can capture the image of the bridge support body and wirelessly transmit the image information to the inspection staff. The visual sensor can intuitively record the situation of the bridge support body and the surrounding area. By analyzing the continuous images, it can be observed whether the bridge support body has obvious displacement. The visual sensor, displacement sensor and magnetic isolator are all connected to the external control device through a wireless connection, so they can be remotely monitored, which is convenient for the inspection personnel to check the status of the bridge support body at any time. At the same time, the displacement sensor can detect the slippage of the bridge support body. The displacement sensor can continuously monitor the bridge support body and collect the displacement data of the bridge support body in real time. The displacement sensor converts the measured displacement signal into an electrical signal, which is collected and stored by the data acquisition equipment. When using the sensor, the magnetic isolator can prevent external electromagnetic interference from entering the sensor system, thereby avoiding external electromagnetic interference affecting the accuracy of the visual sensor and displacement sensor monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front perspective view of the automatic monitoring device for bridge bearing slippage of the present invention;

[0026] Figure 2 A side perspective view of the support portion of the automatic monitoring device for bridge support slippage according to the present invention;

[0027] Figure 3 A side perspective view of a monitoring component portion of the automatic monitoring device for bridge bearing slippage according to the present invention;

[0028] Figure 4 Schematic diagram of the monitoring component structure of the automatic monitoring device for bridge bearing slippage of the present invention;

[0029] Figure 5 A top perspective view of the monitoring portion of the automatic monitoring device for bridge bearing slippage according to the present invention;

[0030] Figure 6 A partial perspective view of a magnetic isolator of the automatic monitoring device for bridge bearing slippage according to the present invention;

[0031] Figure 7 A partially cutaway perspective view of a sliding assembly of an automatic monitoring device for bridge bearing slippage according to the present invention;

[0032] Figure 8 This is a bottom-up perspective view of the structure of the sliding assembly of the automatic monitoring device for bridge bearing slippage of the present invention;

[0033] Figure 9 This is a sectional stereoscopic view of the structure of the protective cover portion of the automatic monitoring device for bridge support slippage of the present invention.

[0034] In the picture:

[0035] 1. Sliding assembly; 101. Support frame; 102. Reinforcing rod; 103. Support ring; 104. Limit groove; 105. Limit slip ring; 106. Support ring; 107. Driven gear groove; 108. Protective cover; 109. Driving gear; 110. Connecting rod; 111. Stabilizing plate; 112. Driving motor; 113. Rotating groove; 114. Rotating block; 2. Monitoring assembly; 201. Mounting frame; 202. Support rod; 203. Fixed ring; 204. Annular convex lens; 205. Reinforcing ring; 206. Fixed rod; 207. Convex eyepiece; 3. Visual sensor; 4. Support column; 5. First mounting plate; 6. Displacement sensor; 7. Second mounting plate; 8. Magnetic isolator; 9. Pier; 10. Bridge deck; 11. Bridge support body. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] Example 1: Reference Figure 1 - Figure 9As shown, the present invention provides a technical solution: an automatic monitoring device for the slippage of a bridge support, comprising a bridge pier 9, a sliding component 1 and a monitoring component 2 fixedly connected to the outer surface of the bridge pier 9, the monitoring component 2 comprising a mounting frame 201 and a fixing rod 206, a plurality of support rods 202 fixedly connected to the outer surface of the mounting frame 201, a fixing ring 203 fixedly connected between one end of the plurality of support rods 202, an annular convex lens 204 fixedly connected to the top of the fixing ring 203, the middle part of the annular convex lens 204 is thicker than the edge so that light can produce a refraction and convergence effect when passing through The top of the annular convex lens 204 is fixedly connected with a reinforcement ring 205, one end of the fixing rod 206 is fixedly connected with a convex eyepiece 207, and the convex eyepiece 207 is used to further magnify the real image formed by the annular convex lens 204, the top of the pier 9 is fixedly connected with a bridge support body 11, and the bridge support body 11 is used to provide stable support for the bridge beam, the top of the bridge support body 11 is fixedly connected with the bridge deck 10, and the mounting frame 201 is fixedly installed on the outer surface of the pier 9 near the top, and the fixing ring 203 and the reinforcement ring 205 are both made of stainless steel metal.

[0038] In this embodiment, when in use, the mounting frame 201 is first fixed to the outside of the pier 9 near the bridge support body 11, and then the fixing ring 203 is supported by the fixed support of multiple support rods 202. At this time, the position of the fixing ring 203 is stable, so the annular convex lens 204 and the reinforcement ring 205 fixed on the top of the fixing ring 203 are also stable. The structure of the annular convex lens 204 is thicker in the middle and thinner at the edges, so it will partially magnify the bridge support body 11, but the magnified image is inverted. This is because the nearly parallel light emitted from the bridge support body 11 enters the annular convex lens 204, is refracted and converges near the focus of the lens, forming an inverted real image. However, the focal length of the convex eyepiece 207 is shorter, which can further magnify the real image formed by the annular convex lens 204 and make the final image within the range of the visual sensor 3 and become an upright dotted line. The principle can refer to the principle of a telescope, so there is no need for workers to work at high altitudes, it has the effect of automatic monitoring, and improves safety.

[0039] Example 2: Figure 1 - Figure 9As shown, the sliding assembly 1 includes a support frame 101, and the support frame 101 is used to enhance the support performance. The support frame 101 is fixedly connected to the outside of the pier 9. The outer surface of the support frame 101 is fixedly connected to a plurality of reinforcing rods 102. A support ring 103 is fixedly connected between one end of the plurality of reinforcing rods 102. The outer surface of the support ring 103 is provided with a limiting groove 104. The inner wall of the limiting groove 104 is rotatably connected to a limiting slip ring 105. The outer surface of the limiting slip ring 105 is fixedly connected to a supporting ring 106. The bottom of the supporting ring 106 is provided with a plurality of driven tooth grooves 107. One side of the pier 9 A protective cover 108 is fixedly connected to the outer surface, and a driving motor 112 is arranged inside the protective cover 108. The output shaft of the driving motor 112 is fixedly connected to a driving gear 109. A rotating groove 113 is provided on one side of the driving gear 109. A rotating block 114 is rotatably connected inside the rotating groove 113. The outer surface of the rotating block 114 is fixedly connected to a stabilizing plate 111. The outer surface of the stabilizing plate 111 is fixedly connected to a plurality of connecting rods 110. The plurality of connecting rods 110 are all fixedly connected to the outside of the protective cover 108. The outer surface of the driving gear 109 is meshed with the inner walls of the plurality of driven tooth grooves 107.

[0040] In this embodiment, when in use, by starting the drive motor 112, the output shaft of the drive motor 112 rotates, thereby driving the driving gear 109 to rotate, wherein the outside of the drive motor 112 is protected by the protective cover 108, which can prevent rain and dust from eroding the drive motor 112, and by making the driving gear 109 rotate on the outside of the rotating block 114, the stability and support are improved. Since the teeth of the driving gear 109 are correspondingly engaged with the driven tooth grooves 107, the supporting ring 106 will rotate under the rotation of the driving gear 109. In addition, the limiting slip ring 105 will not fall off when rotating inside the limiting groove 104. The structures of the two are interlocking, which has the advantage of preventing falling off. Then, the support frame 101 is clamped on the outside of the pier 9 to complete the installation of the entire sliding assembly 1.

[0041] Example 3: Figure 1 - Figure 9 As shown, the top of the supporting ring 106 is fixedly connected to a support column 4 near one side, a visual sensor 3 is set at one end of the support column 4, and the visual sensor 3 is used to monitor the slippage of the bridge support body 11, the fixing rod 206 is fixedly connected to the bracket of the visual sensor 3, the top of the supporting ring 106 is fixedly connected to a first mounting plate 5 near the other side, a displacement sensor 6 is set on the top of the first mounting plate 5, and the displacement sensor 6 is used to capture the tiny displacement changes of the bridge support body 11, the top of the supporting ring 106 is fixedly connected to a second mounting plate 7 near the first mounting plate 5, a magnetic isolator 8 is set on the top of the second mounting plate 7, and the magnetic isolator 8 is used to resist strong electromagnetic interference with the displacement sensor 6.

[0042] In this embodiment, when in use, first, the visual sensor 3 is installed on the supporting ring 106 through the support column 4, and then the displacement sensor 6 and the magnetic isolator 8 are installed on the other side of the supporting ring 106. Then, the visual sensor 3 and the displacement sensor 6 can detect the slippage of the bridge support body 11 in different directions and in different ways when following the rotation of the supporting ring 106. The image of the bridge support body 11 can be captured by the visual sensor 3, and the image information can be wirelessly transmitted to the detection staff. The visual sensor 3 can intuitively record the situation of the bridge support body 11 and the surrounding area. By analyzing the continuous images, it can be observed whether the bridge support body 11 has obvious displacement. The visual sensor 3, the displacement sensor 6 and the magnetic isolator 8 are all connected to the external control device by wireless connection, so they can be remotely monitored, which is convenient for the detection personnel to check the bridge support body 11 at any time. state, at the same time, the displacement sensor 6 can detect the slippage of the bridge support body 11, and the displacement sensor 6 can continuously monitor the bridge support body 11 and collect the displacement data of the bridge support body 11 in real time. The displacement sensor 6 converts the measured displacement signal into an electrical signal, which is collected and stored through the data acquisition equipment. When using the sensor, the magnetic isolator 8 can prevent external electromagnetic interference from entering the sensor system, so as to avoid external electromagnetic interference affecting the monitoring accuracy of the visual sensor 3 and the displacement sensor 6. Among them, the model of the visual sensor 3 is QJNN, which has the advantages of wireless control and waterproof monitoring. The displacement sensor 6 adopts the NL wireless sensor. The wireless connection method has the advantage of simplicity. When the support ring 106 drives the visual sensor 3 and the displacement sensor 6 to rotate, there is no need to pull long wires and move at the same time, so there is no leakage caused by wire entanglement and damage.

[0043] The method and working principle of this device: when in use, by starting the driving motor 112, the output shaft of the driving motor 112 rotates, thereby driving the driving gear 109 to rotate, wherein the outside of the driving motor 112 is protected by the protective cover 108, and by making the driving gear 109 sleeved on the outside of the rotating block 114 and rotated, since the teeth of the driving gear 109 and the driven tooth grooves 107 are correspondingly engaged, the supporting ring 106 will rotate under the rotation of the driving gear 109. In addition, the limiting slip ring 105 will not fall off when rotating inside the limiting groove 104. Then, the support frame 101 is hooped on the outside of the pier 9 to complete the installation of the entire sliding assembly 1. When in use, first, the visual The sensor 3 is installed on the supporting ring 106, and then the displacement sensor 6 and the magnetic isolator 8 are installed on the other side of the supporting ring 106. Then the visual sensor 3 and the displacement sensor 6 can detect the slippage of the bridge support body 11 in different directions and in different ways when following the rotation of the supporting ring 106. The image of the bridge support body 11 can be captured by the visual sensor 3, and the image information can be wirelessly transmitted to the detection staff. The visual sensor 3 can intuitively record the situation of the bridge support body 11 and the surrounding area. By analyzing the continuous images, it can be observed whether the bridge support body 11 has obvious displacement. The visual sensor 3, the displacement sensor 6 and the magnetic isolator 8 are all connected to the outside world by wireless. The control device is connected, so it can be remotely monitored, which is convenient for the inspection personnel to check the status of the bridge support body 11 at any time. At the same time, the displacement sensor 6 can detect the slippage of the bridge support body 11. The displacement sensor 6 can continuously monitor the bridge support body 11 and collect the displacement data of the bridge support body 11 in real time. The displacement sensor 6 converts the measured displacement signal into an electrical signal, which is collected and stored by the data acquisition device. When using the sensor, the magnetic isolator 8 can prevent external electromagnetic interference from entering the sensor system. When in use, the installation frame 201 must first be fixed to the outside of the pier 9 near the bridge support body 11, and then fixed with the support of multiple support rods 202. The support for the fixing ring 203 is completed. At this time, the position of the fixing ring 203 is stable, so the annular convex lens 204 and the reinforcement ring 205 fixed on the top of the fixing ring 203 are also stable. The structure of the annular convex lens 204 is thicker in the middle part and thinner at the edge, so it will partially magnify the bridge support body 11, but the magnified image is inverted. This is because the nearly parallel light emitted from the bridge support body 11 enters the annular convex lens 204, is refracted and converges near the focus of the lens, forming an inverted real image. However, the focal length of the convex eyepiece 207 is shorter, which can further magnify the real image formed by the annular convex lens 204, and make the final image within the range of the visual sensor 3 and become a positive dotted line.

[0044] The wiring diagram of the drive motor 112, visual sensor 3, displacement sensor 6 and magnetic isolator 8 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring layout of the drive motor 112, visual sensor 3, displacement sensor 6 and magnetic isolator 8 will not be explained in detail.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic monitoring device for bridge support slippage, comprising a bridge pier (9), wherein a sliding component (1) and a monitoring component (2) are fixedly connected to the outer surface of the bridge pier (9), and characterized in that: The monitoring assembly (2) comprises a mounting frame (201) and a fixing rod (206); a plurality of support rods (202) are fixedly connected to the outer surface of the mounting frame (201); a fixing ring (203) is fixedly connected between one end of the plurality of support rods (202); an annular convex lens (204) is fixedly connected to the top of the fixing ring (203); the middle portion of the annular convex lens (204) is thicker than the edge so that light can produce a refraction and convergence effect when passing through; a reinforcing ring (205) is fixedly connected to the top of the annular convex lens (204); a convex eyepiece (207) is fixedly connected to one end of the fixing rod (206); and the convex eyepiece (207) is used to further magnify the real image formed by the annular convex lens (204); The sliding assembly (1) includes a support frame (101), and the support frame (101) is used to enhance support performance. The support frame (101) is fixedly connected to the outside of the pier (9). The outer surface of the support frame (101) is fixedly connected to a plurality of reinforcing rods (102). A support ring (103) is fixedly connected between one end of the plurality of reinforcing rods (102). A limiting groove (104) is provided on the outer surface of the support ring (103). The inner wall of the limiting groove (104) is rotatably connected to a limiting slip ring (105). The outer surface of the limiting slip ring (105) is fixedly connected to a supporting ring (106). A support column (4) is fixedly connected to the top of the support ring (106) near one side, a visual sensor (3) is provided at one end of the support column (4), and the visual sensor (3) is used to monitor the sliding condition of the bridge support body (11), and the fixing rod (206) is fixedly connected to the bracket of the visual sensor (3); A first mounting plate (5) is fixedly connected to the top of the supporting ring (106) near the other side, and a displacement sensor (6) is provided on the top of the first mounting plate (5), and the displacement sensor (6) is used to capture small displacement changes of the bridge support body (11); A second mounting plate (7) is fixedly connected to the top of the supporting ring (106) near the first mounting plate (5), and a magnetic isolator (8) is provided on the top of the second mounting plate (7), and the magnetic isolator (8) is used to resist strong electromagnetic interference with the displacement sensor (6).

2. The automatic monitoring device for bridge bearing slippage according to claim 1 is characterized in that: The top of the bridge pier (9) is fixedly connected to a bridge support body (11), and the bridge support body (11) is used to provide stable support for the bridge beam body, and the top of the bridge support body (11) is fixedly connected to a bridge deck (10).

3. The automatic monitoring device for bridge bearing slippage according to claim 2, characterized in that: The installation frame (201) is fixedly installed on the outer surface of the pier (9) near the top, and the fixing ring (203) and the reinforcement ring (205) are both made of stainless steel.

4. The automatic monitoring device for bridge bearing slippage according to claim 3 is characterized in that: A plurality of driven tooth grooves (107) are provided at the bottom of the supporting ring (106); a protective cover (108) is fixedly connected to the outer surface of one side of the bridge pier (9); a driving motor (112) is arranged inside the protective cover (108); an output shaft of the driving motor (112) is fixedly connected to a driving gear (109); a rotating groove (113) is provided on one side of the driving gear (109); a rotating block (114) is rotatably connected inside the rotating groove (113).

5. The automatic monitoring device for bridge bearing slippage according to claim 4 is characterized in that: The outer surface of the rotating block (114) is fixedly connected to a stabilizing plate (111), the outer surface of the stabilizing plate (111) is fixedly connected to a plurality of connecting rods (110), the plurality of connecting rods (110) are all fixedly connected to the outside of the protective cover (108), and the outer surface of the driving gear (109) is meshedly connected to the inner walls of the plurality of driven tooth grooves (107).

6. A method for using an automatic monitoring device for bridge bearing slippage, characterized in that: The automatic monitoring device for bridge bearing slippage according to claim 5 is used, comprising the following steps: S1. By starting the driving motor (112), the output shaft of the driving motor (112) drives the driving gear (109) to rotate. Since the teeth of the driving gear (109) and the driven tooth grooves (107) are correspondingly engaged, the supporting ring (106) will rotate under the rotation of the driving gear (109); S2. The visual sensor (3) is mounted on the supporting ring (106) through the support column (4), and then the displacement sensor (6) and the magnetic isolator (8) are mounted on the other side of the supporting ring (106). Then, the visual sensor (3) and the displacement sensor (6) can detect the sliding of the bridge support body (11) in different directions and in different ways when following the rotation of the supporting ring (106). The image of the bridge support body (11) can be captured by the visual sensor (3), and the image information can be wirelessly transmitted to the detection staff. The visual sensor (3) can intuitively record the conditions of the bridge support body (11) and the surrounding area. By analyzing the continuous images, it can be observed whether the bridge support body (11) has obvious displacement. S3. The displacement sensor (6) can detect the slippage of the bridge support body (11). The displacement sensor (6) can continuously monitor the bridge support body (11) and collect the displacement data of the bridge support body (11) in real time. The displacement sensor (6) converts the measured displacement signal into an electrical signal, which is collected and stored by a data acquisition device. When the sensor is used, a magnetic isolator (8) is used to prevent external electromagnetic interference from entering the sensor system and affecting the accuracy of monitoring by the visual sensor (3) and the displacement sensor (6). S4. Finally, the annular convex lens (204) is thicker in the middle and thinner at the edges, so it will partially magnify the bridge support body (11). At the same time, the convex eyepiece (207) can further magnify the real image formed by the annular convex lens (204) and make the final image within the range of the visual sensor (3), which has the effect of automatic monitoring.

Images