A bridge pier settlement deformation monitoring device

Abstract

The present invention provides a settlement deformation monitoring device for bridge piers and abutments, which relates to bridge engineering and includes a monitor, a mounting frame, a power conversion module and a lightning arrester conversion module mounted on the mounting frame. The power conversion module includes a first power supply component and a second power supply component. When the first power supply component fails, the power conversion module automatically adjusts to the second power supply component to supply power to the monitor. The lightning arrester conversion module improves the overall lightning protection ability of the device in thunderstorm weather, and when the first lightning arrester is damaged, the lightning arrester conversion module automatically adjusts to make the second lightning arrester protect the first power supply component from lightning. The present invention can not only continuously record the actual situation of the settlement deformation of bridge piers and abutments, avoid multiple installations of the monitoring device, reduce the monitoring error, improve the monitoring effect, but also adopt a mechanical structure to enable the power supply component and the lightning arrester component to be automatically adjusted, improve the stability during the working process, and ensure the continuous normal operation of the entire monitoring device.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering, and more particularly, to a monitoring device for settlement deformation of bridge piers and abutments. Background Art

[0002] In the process of traditional monitoring of settlement deformation of bridge piers and abutments, technicians need to measure the bridge piers and abutments at the same position at certain time intervals to observe the deformation of the bridge. In each monitoring of the bridge state in the traditional monitoring method, it is necessary to re-erect brackets and monitoring instruments, etc. It is impossible to ensure that the brackets, monitoring instruments, etc. can be located at the same position in each measurement. As a result, in multiple cycles of measurement, due to the change in the installation position of the brackets, monitoring instruments, etc., or the monitoring points are affected by the environment and external damage, the measurement results deviate, resulting in a large error in the entire monitoring result, making the measured data unable to accurately evaluate and truly reflect the settlement deformation of the bridge piers and abutments. Moreover, the method of periodic measurement cannot continuously record the process of settlement deformation of the bridge piers and abutments, resulting in an inability to accurately judge the current situation of the bridge, and there are potential safety hazards during the construction period and operation period of the bridge. Summary of the Invention

[0003] The purpose of the present invention is to provide a monitoring device for settlement deformation of bridge piers and abutments to solve the above problems. To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0004] The present application provides a monitoring device for settlement deformation of bridge piers and abutments, including: a mounting frame and a power conversion module. The mounting frame includes a bottom mounting plate, a support shaft, and a top mounting plate; the bottom mounting plate is arranged at the bottom end of the support shaft, the top mounting plate is arranged at the top end of the support shaft, the bottom mounting plate and the top mounting plate are parallel to each other and both are parallel to the ground; the power conversion module includes a power supply component and a regulating tube; the power supply component is connected to the support shaft through a bracket and is located below the top mounting plate. The power supply component includes a first power supply component and a second power supply component; a conductive sheet extends to one side of the regulating tube from the first power supply component, and a conductive column is arranged on the upper surface of the second power supply component; the regulating tube vertically penetrates the top mounting plate, the upper end of the regulating tube is electrically connected to the monitor, and the lower end is connected to the conductive sheet of the first power supply component; when the first power supply component works normally, the first power supply component is the power supply of the monitor; when the first power supply component fails, the regulating tube moves under the action of gravity to disconnect from the conductive sheet and contacts the conductive column, so that the second power supply component becomes the power supply of the monitor.

[0005] The beneficial effects of the present invention are:

[0006] The present invention provides power to the monitor through the first power supply component or the second power supply component. The monitor continuously records the actual situation of the settlement deformation of the bridge pier and abutment, avoiding the multiple installations of the monitor in the traditional bridge pier deformation monitoring process, reducing the monitoring error, improving the monitoring effect, and even if the first power supply component is damaged during use, the first power supply component and the second power supply component can be adjusted autonomously, enabling the second power supply component to supply power to the monitor as a backup, ensuring the normal operation of the entire monitoring device, and improving the stability during the working process. The lightning arrester conversion module provides real-time protection and adjustment to the power supply component. The adjustment method using a mechanical mechanism is more stable than the control of the controller's rated program and is less likely to make errors during operation, thereby improving the monitoring effect.

[0007] Other features and advantages of the present invention will be described in the subsequent specification, and, in part, will be obvious from the specification, or can be understood by implementing the embodiments of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the structures specifically pointed out in the written specification, claims, and drawings. Brief Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0009] Figure 1 Structural diagram of the embodiment of the present application;

[0010] Figure 2 Structural diagram of the components below the top mounting plate of the embodiment of the present application;

[0011] Figure 3 Schematic diagram of the connector and its connection relationship in the embodiment of the present application, that is, Figure 2 Enlarged view of location A shown in

[0012] Figure 4 For Figure 3 Structural diagram of the components shown in rotated counterclockwise by 90°;

[0013] Figure 5 Top view of the turntable in the embodiment of the present application;

[0014] Figure 6 Bottom view of the turntable in the embodiment of the present application;

[0015] Figure 7 Cross-sectional view of the adjusting pipe in the embodiment of the present application.

[0016] Markings in the figure:

[0017] 1. Mounting frame; 2. Base; 3. Bottom mounting plate; 4. Support shaft; 5. Top mounting plate; 6. Arc-shaped housing; 7. Monitor; 8. First power supply component; 9. Adjusting tube; 10. Return spring; 11. Magnet block; 12. Adsorption box; 13. Second power supply component; 14. Conductive column; 15. Rocker; 16. Conductive shaft; 17. First lightning arrester; 18. Second lightning arrester; 19. Third lightning arrester; 20. Turntable; 21. Gear ring; 22. Connecting block; 23. Adjusting gear; 24. Driving motor; 25. Poking rod; 26. Connecting bar; 27. Connector; 28. Connecting piece; 29. Electromagnet; 30. Bracket; 31. Conductive sheet; 32. Conductive tube sleeve; 33. Conductive copper bar; 34. Slide block; 35. Slide groove; 36. Ring groove; 37. Conductive inner ring sheet; 38. Connecting column; 39. Connecting groove; 40. Guide channel; 41. Guide block. Detailed implementation manners

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0019] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0020] As Figure 1 shown, this embodiment provides a monitoring device for the settlement and deformation of bridge piers and abutments, including: a mounting frame 1 and a power conversion module. The mounting frame 1 includes a bottom mounting plate 3, a support shaft 4 and a top mounting plate 5. The bottom mounting plate 3 is arranged at the bottom end of the support shaft 4, the top mounting plate 5 is arranged at the top end of the support shaft 4, and the bottom mounting plate 3 and the top mounting plate 5 are parallel to each other and both parallel to the ground.

[0021] The power conversion module includes a power supply component and a regulating tube 9; the power supply component is connected to the support shaft 4 through a bracket 30 and is located below the top mounting plate 5. The power supply component includes a first power supply component 8 and a second power supply component 13; a conductive sheet 31 extends from one side of the first power supply component 8 towards the regulating tube 9, and a conductive post 14 is provided on the upper surface of the second power supply component 13; the regulating tube 9 vertically penetrates the top mounting plate 5, the upper end of the regulating tube 9 is electrically connected to the monitor 7, and the lower end is connected to the conductive sheet 31 of the first power supply component 8, as Figure 7 shown; when the first power supply component 8 is operating normally, the first power supply component 8 is the power supply for the monitor 7; when the first power supply component 8 fails, the regulating tube 9 moves under the action of gravity to disconnect from the conductive sheet 31 and contacts the conductive post 14, so that the second power supply component 13 becomes the power supply for the monitor 7.

[0022] Since the bridge is in an outdoor environment, the working environment for monitoring the settlement and deformation of bridge piers is complex and diverse. Among them, rain, lightning, etc. are most likely to cause the monitoring device to be scrapped. To improve the performance and service life of the first power supply component 8 and the second power supply component 13, this embodiment also has a lightning arrester conversion module. The lightning arrester conversion module includes a lightning arrester component and a turntable component; the lightning arrester component includes a first lightning arrester 17, a second lightning arrester 18, and a third lightning arrester 19, all of which are installed on the upper surface of the bottom mounting plate 3; the third lightning arrester 19 is connected to the second power supply component 13; the first lightning arrester 17 and the second lightning arrester 18 are both connected to the turntable component, and the second lightning arrester 18 protects the first power supply component 8 after the first lightning arrester 17 is punctured.

[0023] As Figures 2 to 6 shown, the turntable component includes a turntable 20, the turntable 20 is rotatably connected to the support shaft 4, and the vertical position of the turntable 20 is between the first power supply component 8 and the top mounting plate 5; a ring groove 36 is provided at the bottom of the turntable 20, and a conductive inner ring piece 37 is provided on the side wall of the ring groove 36. The conductive inner ring piece 37 is electrically connected to the first power supply component 8. Specifically: a connecting column 38 that is slidably connected to the ring groove 36 is provided in the ring groove 36. The connecting column 38 is fixed to and electrically connected to the first power supply component 8, and the top of the connecting column 38 is slidably connected to the ring groove 36 and electrically connected to the conductive inner ring piece 37. A plurality of uniformly distributed connecting blocks 22 are provided at the edge of the turntable 20. The cross-section of the connecting block 22 is inverted U-shaped. One end of the connecting block 22 is connected to the turntable 20, and the other end is connected to a gear ring 21; a guiding channel 40 is formed between the gear ring 21 and the turntable 20, and a connecting piece 28 that is electrically connected to the conductive inner ring piece 37 is provided on the side wall of the guiding channel 40;

[0024] The first lightning arrester 17 and the second lightning arrester 18 are both provided with a vertical connecting strip 26 at the top, and the connecting strip 26 is provided with a connecting head 27 which can be slidably connected to the guide channel 40 at the top;

[0025] When the first power supply assembly 8 is working normally, the connector 27 of the first lightning arrester 17 is in contact with the connecting piece 28, while the connector 27 of the second lightning arrester 18 is not in contact with the connecting piece 28, and the first lightning arrester 17 is electrically connected to the first power supply assembly 8; when the first power supply assembly 8 fails, the turntable 20 rotates, the connector 27 and the connecting piece 28 of the first lightning arrester 17 are relatively displaced away from each other until they are out of contact with each other, while the connector 27 and the connecting piece 28 of the second lightning arrester are relatively displaced towards each other until they are in contact with each other, that is, the second lightning arrester 18 is connected to the turntable 20, and the second lightning arrester 18 is electrically connected to the first power supply assembly 8.

[0026] The arrester conversion module also includes a driving component, which includes a driving motor 24 mounted with bolts on the lower surface of the top mounting plate 5 and a rocker 15 hinged on the lower surface of the top mounting plate 5. The output shaft of the driving motor 24 is keyed or connected to an adjusting gear 23 through a coupling, and the adjusting gear 23 is meshed with the ring gear 21.

[0027] The side wall of the regulating tube 9 is provided with a connecting groove 39 for one end of the rocker arm 15 to extend into, and the connecting groove 39 is located on the same cylindrical surface of the slide groove 35. The end of the rocker arm 15 extending into the connecting groove 39 is provided with a connector, and the connector is electrically connected to the positive pole of the drive motor 24; the conductive column 14 is electrically connected to the negative pole of the drive motor 24.

[0028] When the first power supply assembly 8 works normally, the positive pole of the drive motor 24 is electrically connected to the first power supply assembly 8 , and the negative pole of the drive motor 24 is electrically connected to the second power supply assembly 13 .

[0029] When the first power supply assembly 8 fails, the regulating tube 9 moves vertically downward and covers the conductive column 14, the rocker 15 is electrically connected to the conductive column 14, the positive pole of the drive motor 24 is electrically connected to the second power supply assembly 13, and the negative pole of the drive motor 24 is electrically connected to the second power supply assembly 13, so the drive motor 24 is turned on to drive the turntable 20 to rotate.

[0030] The driving component also includes a lever 25 arranged on the side wall of the turntable 20. When the turntable 20 rotates, the lever 25 approaches the rocker 15 until the rocker 15 is pushed so that the connector of the rocker 15 is disengaged from the connecting groove 39. The positive pole of the driving motor 24 is electrically disconnected from the second power supply assembly 13, the driving motor 24 stops running, and the turntable 20 stops rotating, thereby realizing the autonomous power-off of the driving motor 24.

[0031] During use, the first power supply component 8 and the second power supply component 13 are used as power-consuming devices. By adding a first lightning arrester 17, a second lightning arrester 18, and a third lightning arrester 19, the lightning protection ability of the first power supply component 8 and the second power supply component 13 can be improved. By arranging the first lightning arrester 17 and the second lightning arrester 18 to provide real-time protection and adjustment for the first power supply component 8, and adopting a mechanical mechanism adjustment method, it is more stable than the control of the controller's rated program and is less likely to make mistakes during operation, thereby improving the monitoring effect.

[0032] As Figure 7 shown, a vertical through hole is provided inside the adjusting tube 9, and the inner wall of the through hole is a conductive copper ring. The conductive shaft 16 of the monitor 7 enters the through hole from above. An adsorption box 12 is provided on the side wall of the conductive shaft 16, and an electromagnet 29 is provided inside the adsorption box. The electromagnet 29 is electrically connected to the first power supply component 8; a slider 34 is provided at the end of the conductive shaft 16. The slider 34 is located inside the through hole and is slidably connected to the through hole; a surrounding magnetic block 11 is provided at the top of the adjusting tube 9. The outer diameter of the magnetic block 11 is larger than the outer diameter of the adjusting tube 9, so that the magnetic block 11 can not only be magnetically adsorbed to the electromagnet 29, but also the magnetic block 11 can prevent the adjusting tube 9 from detaching from the top mounting plate 5; a return spring 10 is connected between the magnetic block 11 and the upper surface of the top mounting plate 5; a conductive tube sleeve 32 is provided at the lower part of the inner wall of the adjusting tube 9, and a vertical sliding groove 35 is provided at the lower part of the outer wall of the adjusting tube 9. The bottom surface of the sliding groove 35 is the outer wall of the conductive tube sleeve 32. An insulating guiding block 41 is provided at the upper part of the sliding groove 35. The conductive tube sleeve 32 corresponds to the vertical position of the conductive column 14, and the inner diameter of the conductive tube sleeve 32 is adapted to the outer diameter of the conductive column 14.

[0033] When the first power supply component 8 is working normally, the electromagnet 29 is energized to generate a magnetic force, attracting the magnetic block 11 at the top of the adjusting tube 9, so that the conductive sheet 31 contacts the sliding groove 35, connecting the first power supply component 8 and the conductive tube sleeve 32; when the first power supply component 8 fails, the electromagnet 29 is de-energized, and the adjusting tube 9 moves vertically downward under the action of the return spring 10 and gravity. The conductive sheet 31 contacts the insulating guiding block 41 at the upper part of the sliding groove 35, disconnecting the electrical connection with the conductive tube sleeve 32, and the conductive tube sleeve 32 moves downward to sleeve the conductive column 14. The conductive tube sleeve 32 is electrically connected to the second power supply component 13, that is, the autonomous adjustment from the power supply of the first power supply component 8 to the power supply of the second power supply component 13 is realized.

[0034] As Figure 1As shown, an arc-shaped housing 6 is further provided above the top mounting plate 5. The monitor 7 and the adsorption box 12 are installed inside the arc-shaped housing 6. A transparent window is provided on the side of the arc-shaped housing 6 so that the monitor 7 can monitor the settlement deformation of the bridge pier.

[0035] This embodiment is also provided with an alarm. The alarm is arranged in the base 2 connected to the bottom of the bottom mounting plate 3 (not shown in the drawings). The alarm is a conventional technical means in the art and will not be described in detail in this embodiment. Only the connection relationship of the alarm will be described: One end of the current input and output of the alarm is electrically connected to the conductive column 14, and the other end is electrically connected to the adjusting tube 9. When the first power supply assembly 8 fails and the adjusting tube 9 is connected to the second power supply assembly 13, a closed loop is formed by the second power supply assembly 13, the conductive column 14, the alarm, and the adjusting tube 9, and the alarm emits an alarm, achieving a warning effect.

[0036] The first power supply assembly 8 and the second power supply assembly 13 are the same, and both include a power supply, a frequency converter, and a transformer. The output end of the power supply is connected to the frequency converter and the transformer. The frequency converter performs frequency modulation, and the transformer performs voltage regulation, so as to deliver the current after voltage regulation and frequency modulation to the monitor 7, enabling the monitor 7 to work stably. The output ends of the frequency converter and the transformer are electrically connected to the electromagnet 29, that is, the first power supply assembly 8 supplies power to the electromagnet 29.

[0037] In this embodiment, the monitor 7 uses a laser displacement measuring instrument.

[0038] In this embodiment, as Figure 7 shown, a conductive copper bar 33 is also embedded in the slider 34. The conductive copper bar 33 is electrically connected to the monitor 7 through the inside of the conductive shaft 16 to ensure the power supply effect of the power supply assembly on the monitor 7.

[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0040] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A settlement deformation monitoring device for bridge piers and abutments, characterized in that, Including: Mounting bracket (1), the mounting bracket (1) includes a bottom mounting plate (3), a support shaft (4) and a top mounting plate (5); the bottom mounting plate (3) is arranged at the bottom end of the support shaft (4), and the top mounting plate (5) is arranged at the top end of the support shaft (4), and the bottom mounting plate (3) and the top mounting plate (5) are parallel to each other and both parallel to the ground; Power conversion module, the power conversion module includes a power component and a regulating tube (9); the power component is connected to the support shaft (4) through a bracket (30) and is located below the top mounting plate (5), and the power component includes a first power component (8) and a second power component (13); a conductive sheet (31) extends from one side of the first power component (8) to the regulating tube (9), and a conductive column (14) is arranged on the upper surface of the second power component (13); the regulating tube (9) vertically penetrates the top mounting plate (5), the upper end of the regulating tube (9) is electrically connected to the monitor (7), and the lower end is connected to the conductive sheet (31) of the first power component (8); when the first power component (8) works normally, the first power component (8) is the power supply for the monitor (7); when the first power component (8) fails, the regulating tube (9) moves under the action of gravity to disconnect from the conductive sheet (31) and contacts the conductive column (14), so that the second power component (13) becomes the power supply for the monitor (7); Among them, a lightning arrester conversion module, the lightning arrester conversion module includes a lightning arrester component and a turntable component; the lightning arrester component includes a first lightning arrester (17), a second lightning arrester (18), and a third lightning arrester (19), all of which are installed on the upper surface of the bottom mounting plate (3); the third lightning arrester (19) is connected to the second power component (13); the first lightning arrester (17) and the second lightning arrester (18) are both connected to the turntable component; The turntable component includes a turntable (20), the turntable (20) is rotatably connected to the support shaft (4), and the vertical position of the turntable (20) is between the first power component (8) and the top mounting plate (5); a ring groove (36) is arranged at the bottom of the turntable (20), and a conductive inner ring piece (37) is arranged on the side wall of the ring groove (36), and the conductive inner ring piece (37) is electrically connected to the first power component (8); a plurality of uniformly distributed connecting blocks (22) are arranged on the edge of the turntable (20), the cross section of the connecting block (22) is inverted U-shaped, one end of the connecting block (22) is connected to the turntable (20), and the other end is connected to a gear ring (21); a guiding channel (40) is formed between the gear ring (21) and the turntable (20), and a connecting piece (28) electrically connected to the conductive inner ring piece (37) is arranged on the side wall of the guiding channel (40); Vertical connecting bars (26) are arranged at the tops of the first lightning arrester (17) and the second lightning arrester (18), and connecting heads (27) that can be slidably connected to the guiding channel (40) are arranged at the tops of the connecting bars (26); When the first power supply assembly (8) is operating normally, the connector (27) of the first lightning arrester (17) is in contact with the connecting piece (28), while the connector (27) of the second lightning arrester (18) is not in contact with the connecting piece (28), and the first lightning arrester (17) is electrically connected to the first power supply assembly (8); when the first power supply assembly (8) fails, the turntable (20) rotates, the connector (27) of the first lightning arrester (17) and the connecting piece (28) are relatively displaced away from each other until they are out of contact with each other, while the connector (27) of the second lightning arrester and the connecting piece (28) are relatively displaced towards each other until they are in contact with each other, that is, the second lightning arrester (18) is connected to the turntable (20), and the second lightning arrester (18) is electrically connected to the first power supply assembly (8).

2. The bridge pier settlement deformation monitoring device according to claim 1, characterized in that: The arrester conversion module further comprises a driving component, the driving component comprising a driving motor (24) mounted on the lower surface of the top mounting plate (5) and a rocker (15) hinged on the lower surface of the top mounting plate (5), the output shaft of the driving motor (24) being connected to an adjusting gear (23), and the adjusting gear (23) being meshed with the ring gear (21); The side wall of the regulating tube (9) is provided with a connecting groove (39) for one end of the rocking arm (15) to extend into, the lower part of the outer wall of the regulating tube (9) is provided with a vertical sliding groove (35), the connecting groove (39) is located on the same cylindrical surface of the sliding groove (35), and the end of the rocking arm (15) extending into the connecting groove (39) is provided with a joint, and the joint is electrically connected to the positive pole of the driving motor (24); the conductive column (14) is electrically connected to the negative pole of the driving motor (24); When the first power supply assembly (8) works normally, the positive pole of the drive motor (24) is electrically connected to the first power supply assembly (8), and the negative pole of the drive motor (24) is electrically connected to the second power supply assembly (13); When the first power supply assembly (8) fails, the regulating tube (9) moves vertically downward and covers the conductive column (14), the rocker (15) is electrically connected to the conductive column (14), the positive pole of the drive motor (24) is electrically connected to the second power supply assembly (13), and the negative pole of the drive motor (24) is electrically connected to the second power supply assembly (13), so that the drive motor (24) is turned on to drive the turntable (20) to rotate.

3. The bridge pier settlement deformation monitoring device according to claim 2, characterized in that: The driving component also includes a lever (25) arranged on the side wall of the turntable (20). When the turntable (20) rotates, the lever (25) approaches the rocking arm (15) until the rocking arm (15) is pushed so that the joint of the rocking arm (15) is disengaged from the connecting groove (39), the positive pole of the driving motor (24) is electrically disconnected from the second power supply assembly (13), the driving motor (24) stops running, and the turntable (20) stops rotating.

4. The bridge pier settlement deformation monitoring device according to claim 2, characterized in that: The adjusting pipe (9) is internally provided with a vertical through hole, and the conductive shaft (16) of the monitor (7) enters the through hole from above. An adsorption box (12) is provided on the side wall of the conductive shaft (16), and an electromagnet (29) is arranged inside the adsorption box. The electromagnet (29) is electrically connected to the first power supply assembly (8); a slider (34) is arranged at the end of the conductive shaft (16), and the slider (34) is located inside the through hole and is slidably connected to the through hole; a surrounding magnetic block (11) is arranged at the top end of the adjusting pipe (9), the outer diameter of the magnetic block (11) is larger than the outer diameter of the adjusting pipe (9), and the magnetic block (11) is connected to the upper surface of the top mounting plate (5) through a return spring (10); a conductive pipe sleeve (32) is arranged at the lower part of the inner wall of the adjusting pipe (9), the bottom surface of the sliding groove (35) is the outer wall of the conductive pipe sleeve (32), an insulating guiding block (41) is arranged at the upper part of the sliding groove (35), the conductive pipe sleeve (32) corresponds to the conductive column (14) in the vertical position, and the inner diameter of the conductive pipe sleeve (32) is adapted to the outer diameter of the conductive column (14). When the first power supply assembly (8) works normally, the electromagnet (29) is energized to generate a magnetic force, attracting the magnetic block (11) at the top end of the adjusting pipe (9), so that the conductive sheet (31) contacts the sliding groove (35), connecting the first power supply assembly (8) and the conductive pipe sleeve (32); when the first power supply assembly (8) fails, the electromagnet (29) is de-energized, and the adjusting pipe (9) moves vertically downward under the action of the return spring (10) and gravity. The conductive sheet (31) contacts the insulating guiding block (41) at the upper part of the sliding groove (35), disconnecting the electrical connection with the conductive pipe sleeve (32), and the conductive pipe sleeve (32) moves downward to sleeve the conductive column (14), and the conductive pipe sleeve (32) is electrically connected to the second power supply assembly (13).

5. The bridge pier settlement deformation monitoring device according to claim 1, characterized in that: An alarm is also provided. The alarm is arranged in the base (2) connecting the bottom of the bottom mounting plate (3). One end of the current input and output of the alarm is electrically connected to the conductive column (14), and the other end is electrically connected to the adjusting pipe (9). When the first power supply assembly (8) fails and the adjusting pipe (9) is connected to the second power supply assembly (13), the second power supply assembly (13), the conductive column (14), the alarm and the adjusting pipe (9) form a closed loop.

6. The bridge pier settlement deformation monitoring device according to claim 4, wherein: The first power supply assembly (8) and the second power supply assembly (13) have the same components, both including a power supply, a frequency converter and a transformer. The output end of the power supply is connected to the frequency converter and the transformer, and the output ends of the frequency converter and the transformer are electrically connected to the electromagnet (29).

7. The bridge pier settlement deformation monitoring device according to claim 1, wherein: An arc-shaped housing (6) is further arranged above the top mounting plate (5), and the monitor (7) and the adsorption box (12) are installed inside the arc-shaped housing (6).

8. The bridge pier settlement deformation monitoring device according to claim 1, characterized in that: A connecting column (38) which is slidably connected with the annular groove (36) is arranged in the annular groove (36). The connecting column (38) is fixedly connected with and electrically connected to the first power supply assembly (8). The top of the connecting column (38) is slidably connected with the annular groove (36) and is electrically connected to the conductive inner annular sheet (37).

9. The bridge pier settlement deformation monitoring device according to claim 1, wherein: The monitor (7) uses a laser displacement measuring instrument.

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