Bridge support deformation monitoring device

Abstract

The application is suitable for the technical field of bridge monitoring, and provides a bridge support deformation monitoring device, which comprises a base, a rack arranged on the base, a height monitoring module, a composite monitoring module, the height monitoring module comprises a first mounting sleeve, and a mounting stand is arranged on the top of the first mounting sleeve; the composite monitoring module comprises a second mounting sleeve, one end of the second mounting sleeve is connected with the mounting stand through a second spring, the other end of the second mounting sleeve is provided with an auxiliary cross bar, a control unit is further arranged in the auxiliary cross bar, the auxiliary cross bar is connected with a mounting seat, a measuring rod is hingedly connected to the end of the mounting seat through a rotating shaft, one contact roller is arranged on each side of the measuring rod, and a triangular clamping block is further arranged on the measuring rod. The device is simple to operate, can be suitable for bridge supports of different sizes, has a wide application range, and can simultaneously monitor the height change, horizontal displacement, torsional deformation and other conditions of the bridge support, and has various monitoring functions.

Description

Technical Field

[0001] This invention belongs to the field of bridge monitoring technology, and in particular relates to a bridge bearing deformation monitoring device. Background Technology

[0002] Bridge bearings are crucial load-bearing components connecting the superstructure and substructure of a bridge. Their primary function is to reliably transfer the load from the superstructure to the piers or abutments, while also accommodating deformations (such as expansion, contraction, rotation, and displacement) caused by factors like temperature changes, concrete shrinkage and creep, vehicle loads, wind force, and earthquakes. The normal operating condition of bridge bearings directly affects the safety and durability of the bridge structure. Excessive deformation, aging, detachment, shear failure, or instability of bridge bearings can lead to abnormal stress on the bridge beam, uneven bridge deck, and bearing failure.

[0003] Currently, the health status of bridge bearings is mainly assessed through regular manual inspections and periodic structural monitoring. Common monitoring methods include visual inspection, measuring bearing clearance with feeler gauges, measuring beam elevation changes with levels, and measuring displacement with total stations. However, existing monitoring devices are mostly limited in function, and there is a lack of equipment capable of simultaneously and dynamically monitoring various deformation conditions that may exist in bridge bearings, such as height changes, horizontal displacement, and torsional deformation. Summary of the Invention

[0004] The purpose of this invention is to provide a bridge bearing deformation monitoring device, which aims to solve the problems mentioned in the background art.

[0005] This invention is implemented as follows: a bridge bearing deformation monitoring device includes a base, a frame mounted on the base, and a first moving unit for driving the frame to move horizontally linearly on the base; it also includes:

[0006] The height monitoring module includes a first mounting sleeve mounted on a frame, and the frame is also provided with a second moving unit for driving the first mounting sleeve to move linearly in the vertical direction. A mounting column is slidably mounted on the top of the first mounting sleeve in the vertical direction, and one end of the mounting column located inside the first mounting sleeve is connected to the inner bottom wall of the first mounting sleeve through a first spring.

[0007] A composite monitoring module includes a second mounting sleeve that is slidably mounted on the upper part of a mounting column in a horizontal direction. One end of the second mounting sleeve is connected to the mounting column via a second spring, and a connecting unit for fixing the second mounting sleeve to the mounting column is also provided in the second mounting sleeve. An auxiliary crossbar is slidably mounted on the other end of the second mounting sleeve in a horizontal direction. One end of the auxiliary crossbar located inside the second mounting sleeve is connected to the interior of the second mounting sleeve via a fourth spring. A control unit for fixing the auxiliary crossbar in the second mounting sleeve is also provided in the auxiliary crossbar. A mounting base is connected to the end of the auxiliary crossbar located outside the second mounting sleeve. A measuring rod is provided at the end of the mounting base. The measuring rod is hinged to the mounting base via a pivot shaft located in its middle. Two arc-shaped springs are symmetrically arranged on both sides of the mounting base in a horizontal direction, and the two arc-shaped springs are respectively connected to both sides of the measuring rod. A contact roller is installed on each side of the measuring rod. A triangular locking block is provided on the side of the measuring rod away from the mounting base.

[0008] In a further technical solution, when the control unit is not working, the auxiliary crossbar and the second mounting sleeve can slide relative to each other, and the connecting unit will fix the second mounting sleeve to the mounting column; when the control unit is working, the auxiliary crossbar is fixed in the second mounting sleeve, and the connecting unit will release the limit on the second mounting sleeve, allowing the second mounting sleeve and the mounting column to slide relative to each other.

[0009] In a further technical solution, the first moving unit includes a first threaded rod and a first guide rod mounted horizontally on the base, the frame is slidably mounted on the first guide rod, and the frame is also provided with a threaded sleeve that matches the first threaded rod, and a first driving member is provided at one end of the first threaded rod.

[0010] In a further technical solution, the second moving unit includes a second threaded rod and a second guide rod mounted vertically on the frame, the first mounting sleeve is slidably mounted on the second guide rod, and the first mounting sleeve is also provided with a threaded sleeve that matches the second threaded rod, and a second driving member is provided at one end of the second threaded rod.

[0011] In a further technical solution, a connecting plate is provided on the side of the triangular block near the measuring rod, and a sliding groove matching the connecting plate is provided on the measuring rod. The connecting plate is slidably installed in the sliding groove in the vertical direction, and a third spring is also provided between the bottom of the connecting plate and the sliding groove.

[0012] In a further technical solution, the control unit includes a positioning block that is slidably mounted on the bottom surface of the auxiliary crossbar in a vertical direction, and the interior of the second mounting sleeve is provided with a positioning groove that matches the positioning block. A seventh spring is also provided between the top of the positioning block and the auxiliary crossbar, and an electromagnet is also provided in the area of ​​the auxiliary crossbar directly above the positioning block.

[0013] In a further technical solution, the second mounting sleeve is also provided with a push-button control switch for controlling the start and stop of the displacement sensor and the angle sensor;

[0014] Furthermore, when the positioning block is inserted into the second mounting sleeve, it presses against the push-button control switch, thereby controlling the displacement sensor and angle sensor to perform data measurement; when the positioning block is removed from the second mounting sleeve, the push-button control switch will be turned off, thereby controlling the displacement sensor and angle sensor to stop measuring.

[0015] In a further technical solution, the connecting unit includes a trapezoidal stop block that is slidably installed in the side wall of the second mounting sleeve in the vertical direction. The trapezoidal stop block has an inclined surface at one end near the inner side of the second mounting sleeve, and the trapezoidal stop block is connected to the second mounting sleeve by a fifth spring. A top block is slidably installed in the mounting column in the vertical direction. One end of the top block abuts against the trapezoidal stop block, and the end of the top block away from the trapezoidal stop block is connected to the mounting column by a sixth spring.

[0016] This invention provides a bridge bearing deformation monitoring device. During monitoring, when the upper bearing plate undergoes horizontal displacement, the upper bearing plate pushes a measuring rod to move via two contact rollers. The measuring rod then drives an auxiliary crossbar and a second mounting sleeve to move horizontally synchronously. The horizontal displacement of the upper bearing plate is then determined by monitoring the displacement of the second mounting sleeve using a displacement sensor. When the upper bearing plate experiences a height change due to pressure, the upper bearing plate moves the composite monitoring module downwards via a triangular locking block, causing the mounting column to retract synchronously into the first mounting sleeve. The height change of the upper bearing plate is then determined by monitoring the displacement of the mounting column using a displacement sensor. Furthermore, when the upper bearing plate undergoes torsion, the contact rollers rotate synchronously with the upper bearing plate (when not subjected to external force, the measuring rod is perpendicular to the mounting base). The torsional deformation of the upper bearing plate is then determined by monitoring the rotation of the shaft using an angle sensor. The device is easy to operate, can adapt to bridge bearings of different sizes, has a wide range of applications, and can simultaneously monitor changes in bridge bearing height, horizontal displacement, and torsional deformation, providing diverse monitoring functions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation position of a bridge bearing deformation monitoring device provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a bridge bearing deformation monitoring device provided in an embodiment of the present invention;

[0019] Figure 3 This is a structural schematic diagram from another perspective of a bridge bearing deformation monitoring device provided in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of some components of a bridge bearing deformation monitoring device provided in an embodiment of the present invention after being cut apart;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the image;

[0022] Figure 6 This is a schematic diagram of the measuring rod in a bridge bearing deformation monitoring device provided in an embodiment of the present invention.

[0023] In the attached diagram: Base 1; Frame 11; First moving unit 2; First threaded rod 21; First driving component 211; First guide rod 22; Height monitoring module 3; First mounting sleeve 31; Mounting column 32; First spring 33; Second moving unit 4; Second threaded rod 41; Second driving component 411; Second guide rod 42; Composite monitoring module 5; Second mounting sleeve 51; Positioning groove 511; Auxiliary crossbar 52; Mounting seat 53; Second spring 54; Measuring rod 55; Rotating shaft 551; Sliding groove 552; Third spring 553; Contact roller 56; Triangular locking block 57; Connecting plate 571; Arc spring 58; Fourth spring 59; Connecting unit 6; Top block 61; Trapezoidal stop block 62; Inclined surface 621; Fifth spring 63; Sixth spring 64; Control unit 7; Positioning insert 71; Electromagnet 72; Seventh spring 73; Bridge support 100. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] like Figures 1-6 As shown, a bridge bearing deformation monitoring device according to an embodiment of the present invention includes a base 1, a frame 11 mounted on the base 1, and a first moving unit 2 for driving the frame 11 to move horizontally linearly on the base 1; it also includes:

[0027] The height monitoring module 3 includes a first mounting sleeve 31 mounted on a frame 11, and a second moving unit 4 is provided on the frame 11 for driving the first mounting sleeve 31 to move linearly in the vertical direction. A mounting column 32 is slidably mounted on the top of the first mounting sleeve 31 in the vertical direction, and one end of the mounting column 32 located inside the first mounting sleeve 31 is connected to the inner bottom wall of the first mounting sleeve 31 through a first spring 33.

[0028] The composite monitoring module 5 includes a second mounting sleeve 51 that is slidably mounted horizontally on the upper part of the mounting column 32. One end of the second mounting sleeve 51 is connected to the mounting column 32 via a second spring 54, and the second mounting sleeve 51 is also provided with a connecting unit 6 for fixing the second mounting sleeve 51 to the mounting column 32. The other end of the second mounting sleeve 51 is slidably mounted with an auxiliary crossbar 52 in the horizontal direction. One end of the auxiliary crossbar 52 located inside the second mounting sleeve 51 is connected to the interior of the second mounting sleeve 51 via a fourth spring 59. The auxiliary crossbar 52 is also provided with... The control unit 7 is used to fix the auxiliary crossbar 52 in the second mounting sleeve 51. The auxiliary crossbar 52 is connected to a mounting base 53 at one end outside the second mounting sleeve 51. A measuring rod 55 is provided at the end of the mounting base 53. The measuring rod 55 is hinged to the mounting base 53 through a pivot 551 provided in its middle. Two arc springs 58 are symmetrically arranged on both sides of the mounting base 53 in the horizontal direction, and the two arc springs 58 are respectively connected to the two sides of the measuring rod 55. A contact roller 56 is installed on each side of the measuring rod 55. A triangular locking block 57 is provided on the side of the measuring rod 55 away from the mounting base 53.

[0029] In this embodiment of the invention, when the control unit 7 is not working, the auxiliary crossbar 52 and the second mounting sleeve 51 can slide relative to each other, and the connecting unit 6 will fix the second mounting sleeve 51 to the mounting column 32; when the control unit 7 is working, the auxiliary crossbar 52 is fixed in the second mounting sleeve 51, and the connecting unit 6 will release the restriction on the second mounting sleeve 51, and the second mounting sleeve 51 and the mounting column 32 can slide relative to each other.

[0030] In use, four sets of these monitoring devices are typically used together, installed around the bridge bearing 100, and abutting against the four sides of its upper bearing plate. During measurement, initially, when the control unit 7 is not operating, the auxiliary crossbar 52 and the second mounting sleeve 51 can slide relative to each other, and the connecting unit 6 fixes the second mounting sleeve 51 to the mounting column 32. First, the base 1 is installed in the designated position, and then the height of the height monitoring module 3 is adjusted by the second moving unit 4 to ensure that the contact roller 56 is at the same height as the side of the upper bearing plate. When the contact roller 56 abuts against the side of the upper bearing plate, the triangular locking block 57 abuts against the lower edge of the side of the upper bearing plate. Then, the first moving unit 2 drives the height monitoring module 3 to move towards the side closer to the upper support plate, so that the contact roller 56 abuts against the side of the upper support plate. At this time, the first moving unit 2 continues to drive the height monitoring module 3 to move towards the upper support plate. The auxiliary crossbar 52 will be retracted into the second mounting sleeve 51 by the reaction force until the connecting unit 6 works to fix the relative position of the second mounting sleeve 51 and the auxiliary crossbar 52. The connecting unit 6 will automatically release the limit on the second mounting sleeve 51, and the first moving unit 2 will also stop. The device then enters the monitoring state.

[0031] During monitoring, when the upper support plate undergoes horizontal displacement, it pushes the measuring rod 55 to move via two contact rollers 56. The measuring rod 55 then moves horizontally synchronously with the auxiliary crossbar 52 and the second mounting sleeve 51. The horizontal displacement of the upper support plate is then determined by monitoring the displacement of the second mounting sleeve 51 using a displacement sensor. When the upper support plate experiences a height change due to pressure, it moves the composite monitoring module 5 downwards via a triangular locking block 57, causing the mounting column 32 to retract synchronously into the first mounting sleeve 31. The height change of the upper support plate is then determined by monitoring the displacement of the mounting column 32 using a displacement sensor. Furthermore, when the upper support plate undergoes torsion, the contact rollers 56 rotate synchronously with it (when not subjected to external force, the measuring rod 55 is perpendicular to the mounting base 53). The torsional deformation of the upper support plate is then determined by monitoring the rotation of the rotating shaft 551 using an angle sensor.

[0032] like Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, the first moving unit 2 can adopt any linear moving mechanism in the prior art. Specifically, in this application, the first moving unit 2 includes a first threaded rod 21 and a first guide rod 22 mounted on the base 1 in a horizontal direction. The frame 11 is slidably mounted on the first guide rod 22, and the frame 11 is also provided with a threaded sleeve that matches the first threaded rod 21. One end of the first threaded rod 21 is provided with a first driving member 211.

[0033] In this embodiment of the invention, the first driving member 211 can be a grip handle or an electric drive. In use, the first driving member 211 drives the first threaded rod 21 to rotate. The first threaded rod 21 engages with the threaded sleeve on the frame 11, which drives the frame 11 to slide along the first guide rod 22, thereby adjusting the horizontal position of the frame 11 and bringing the contact roller 56 against the side of the upper support plate of the bridge support 100.

[0034] like Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, the second moving unit 4 can also adopt any linear moving mechanism in the prior art, and for ease of manufacturing, the second moving unit 4 adopts a mechanism of the same type as the first moving unit 2. Specifically, the second moving unit 4 includes a second threaded rod 41 and a second guide rod 42 mounted vertically on the frame 11, the first mounting sleeve 31 is slidably mounted on the second guide rod 42, and the first mounting sleeve 31 is also provided with a threaded sleeve that matches the second threaded rod 41, and a second driving member 411 is provided at one end of the second threaded rod 41.

[0035] In this embodiment of the invention, similarly, the second driving member 411 can be a grip handle or an electrically driven component. In use, the second driving member 411 drives the second threaded rod 41 to rotate. The second threaded rod 41 engages with the threaded sleeve on the first mounting sleeve 31, causing the first mounting sleeve 31 to slide along the second guide rod 42, thereby adjusting the vertical height of the first mounting sleeve 31 so that the contact roller 56 is at the same height as the side of the upper support plate.

[0036] like Figure 2 , Figure 4 and Figure 6 As shown, in a preferred embodiment of the present invention, a connecting plate 571 is provided on the side of the triangular block 57 near the measuring rod 55. A sliding groove 552 matching the connecting plate 571 is provided on the measuring rod 55, and the connecting plate 571 is slidably installed in the sliding groove 552 in the vertical direction. A third spring 553 is also provided between the bottom of the connecting plate 571 and the sliding groove 552.

[0037] In this embodiment of the invention, when no external force is applied, the connecting plate 571 is at its upper limit position. As the measuring rod 55 moves closer to the side of the upper support plate and eventually abuts against it, the inclined surface of the triangular locking block 57 first contacts the lower edge of the side of the upper support plate. If the contact roller 56 has not yet abutted against the side of the upper support plate, as the measuring rod 55 continues to move, the triangular locking block 57 will be squeezed by the lower edge of the side of the upper support plate and slide relative to the measuring rod 55, thus causing the triangular locking block 57 to have a downward movement component until the contact roller 56 abuts against the side of the upper support plate. With this setting, the accuracy requirement for height adjustment can be reduced. It is only necessary to adjust the contact roller 56 to be basically flush with the side of the upper support plate, and the triangular locking block 57 can adaptively abut against the lower edge of the side of the support plate.

[0038] In this state, a displacement sensor needs to be installed in the sliding groove 552 to monitor the vertical displacement of the connecting plate 571. If the connecting plate 571 does not move to the lower limit position, there are two stages when calculating the height change of the bridge support 100. In the first stage, the height change of the upper support plate is only reflected in the triangular block 57, and only the vertical displacement of the connecting plate 571 needs to be measured. If the upper support plate still has a downward displacement after the connecting plate 571 is compressed downward to the lower limit position, the height change of the upper support plate consists of two parts: one part is the vertical displacement of the mounting column 32, and the other part is the vertical displacement of the connecting plate 571 after the contact roller 56 comes into contact with the side of the upper support plate.

[0039] like Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, the control unit 7 includes a positioning block 71 that is slidably mounted on the bottom surface of the auxiliary crossbar 52 in a vertical direction, and the second mounting sleeve 51 is provided with a positioning groove 511 that matches the positioning block 71. A seventh spring 73 is also provided between the top of the positioning block 71 and the auxiliary crossbar 52, and an electromagnet 72 is also provided in the area of ​​the auxiliary crossbar 52 located directly above the positioning block 71.

[0040] In this embodiment of the invention, when the positioning block 71 is fully retracted into the auxiliary crossbar 52, the second mounting sleeve 51 and the auxiliary crossbar 52 can slide relative to each other. When no external force is applied, the elastic force of the fourth spring 59 will cause the positioning block 71 and the positioning groove 511 to be misaligned. At this time, the connecting unit 6 is in working condition, thereby fixing the second mounting sleeve 51 in the mounting column 32. When the contact roller 56 abuts against the side of the upper support plate, as the height monitoring module 3 continues to move towards the side closer to the bridge support 100, the auxiliary crossbar 52 will be retracted into the second mounting sleeve 51 by a reaction force until the positioning block 71 and the positioning groove 511 coincide. Then, the positioning block 71 will be inserted into the positioning groove 511 by the elastic force of the seventh spring 73. At this time, the relative positions of the second mounting sleeve 51 and the auxiliary crossbar 52 are fixed, and the connecting unit 6 will automatically release the restriction on the second mounting sleeve 51. Simultaneously, the first moving unit 2 will also stop, and the device will enter the monitoring state.

[0041] Furthermore, when it is necessary to disconnect the connection between the second mounting sleeve 51 and the auxiliary crossbar 52, it is only necessary to activate the electromagnet 72 after the contact roller 56 is disengaged from the side of the support plate. The magnetic attraction generated by the electromagnet 72 will cause the positioning block 71 to retract into the auxiliary crossbar 52 again. At this time, the elastic restoring force of the fourth spring 59 will push the auxiliary crossbar 52 to move, thereby causing the positioning block 71 to be misaligned with the positioning groove 511. At this time, the second mounting sleeve 51 and the auxiliary crossbar 52 can slide relative to each other.

[0042] In a preferred embodiment of the present invention, the second mounting sleeve 51 is further provided with a push-button control switch for controlling the start and stop of the displacement sensor and the angle sensor. When the positioning block 71 is inserted into the second mounting sleeve 51, it presses against the push-button control switch, thereby controlling the displacement sensor and the angle sensor to perform data measurement. When the positioning block 71 is disengaged from the second mounting sleeve 51, the push-button control switch is turned off, thereby controlling the displacement sensor and the angle sensor to stop measuring.

[0043] like Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, the connecting unit 6 includes a trapezoidal stop 62 slidably mounted in the side wall of the second mounting sleeve 51 in the vertical direction. The trapezoidal stop 62 has an inclined surface 621 at one end near the inner side of the second mounting sleeve 51, and the trapezoidal stop 62 is connected to the second mounting sleeve 51 by a fifth spring 63. A top block 61 is slidably mounted in the mounting column 32 in the vertical direction. One end of the top block 61 abuts against the trapezoidal stop 62, and the end of the top block 61 away from the trapezoidal stop 62 is connected to the mounting column 32 by a sixth spring 64.

[0044] In this embodiment of the invention, when no external force is applied, the top block 61 is inserted into the second mounting sleeve 51. During the process of the auxiliary crossbar 52 retracting into the second mounting sleeve 51, the end of the auxiliary crossbar 52 contacts the inclined surface 621, and through its cooperation with the inclined surface 621, pushes the trapezoidal stop 62 into the side wall of the second mounting sleeve 51. The trapezoidal stop 62 simultaneously pushes the top block 61 to disengage from the second mounting sleeve 51, at which point the second mounting sleeve 51 and the mounting column 32 can slide freely.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bridge bearing deformation monitoring device, comprising a base, a frame mounted on the base, and a first moving unit for driving the frame to move horizontally linearly on the base; characterized in that, Also includes: The height monitoring module includes a first mounting sleeve mounted on a frame, and the frame is also provided with a second moving unit for driving the first mounting sleeve to move linearly in the vertical direction. A mounting column is slidably mounted on the top of the first mounting sleeve in the vertical direction, and one end of the mounting column located inside the first mounting sleeve is connected to the inner bottom wall of the first mounting sleeve through a first spring. A composite monitoring module includes a second mounting sleeve that is slidably mounted on the upper part of a mounting column in a horizontal direction. One end of the second mounting sleeve is connected to the mounting column via a second spring, and a connecting unit for fixing the second mounting sleeve to the mounting column is also provided in the second mounting sleeve. An auxiliary crossbar is slidably mounted on the other end of the second mounting sleeve in a horizontal direction. One end of the auxiliary crossbar located inside the second mounting sleeve is connected to the interior of the second mounting sleeve via a fourth spring. A control unit for fixing the auxiliary crossbar in the second mounting sleeve is also provided in the auxiliary crossbar. A mounting base is connected to the end of the auxiliary crossbar located outside the second mounting sleeve. A measuring rod is provided at the end of the mounting base. The measuring rod is hinged to the mounting base via a pivot shaft located in its middle. Two arc-shaped springs are symmetrically arranged on both sides of the mounting base in a horizontal direction, and the two arc-shaped springs are respectively connected to both sides of the measuring rod. A contact roller is installed on each side of the measuring rod. A triangular locking block is provided on the side of the measuring rod away from the mounting base. When the control unit is not working, the auxiliary crossbar and the second mounting sleeve can slide relative to each other, and the connecting unit will fix the second mounting sleeve to the mounting column; when the control unit is working, the auxiliary crossbar is fixed in the second mounting sleeve, and the connecting unit will release the limit on the second mounting sleeve, and the second mounting sleeve and the mounting column can slide relative to each other.

2. The bridge bearing deformation monitoring device according to claim 1, characterized in that, A connecting plate is provided on the side of the triangular block near the measuring rod. A sliding groove matching the connecting plate is provided on the measuring rod. The connecting plate is slidably installed in the sliding groove in the vertical direction. A third spring is also provided between the bottom of the connecting plate and the sliding groove.

3. The bridge bearing deformation monitoring device according to claim 2, characterized in that, The control unit includes a positioning block that is slidably mounted on the bottom surface of the auxiliary crossbar in a vertical direction, and the interior of the second mounting sleeve is provided with a positioning groove that matches the positioning block. A seventh spring is also provided between the top of the positioning block and the auxiliary crossbar, and an electromagnet is also provided in the area of ​​the auxiliary crossbar directly above the positioning block.

4. The bridge bearing deformation monitoring device according to claim 3, characterized in that, The second mounting sleeve is also equipped with a push-button control switch for controlling the start and stop of the displacement sensor and the angle sensor; Furthermore, when the positioning block is inserted into the second mounting sleeve, it presses against the push-button control switch, thereby controlling the displacement sensor and angle sensor to perform data measurement; when the positioning block is removed from the second mounting sleeve, the push-button control switch will be turned off, thereby controlling the displacement sensor and angle sensor to stop measuring.

5. The bridge bearing deformation monitoring device according to claim 3, characterized in that, The connecting unit includes a trapezoidal stop block that is slidably installed in the side wall of the second mounting sleeve in the vertical direction. The trapezoidal stop block has an inclined surface at one end near the inner side of the second mounting sleeve and is connected to the second mounting sleeve by a fifth spring. A top block is slidably installed in the mounting column in the vertical direction. One end of the top block abuts against the trapezoidal stop block and the end of the top block away from the trapezoidal stop block is connected to the mounting column by a sixth spring.

6. The bridge bearing deformation monitoring device according to claim 1, characterized in that, The first moving unit includes a first threaded rod and a first guide rod mounted horizontally on the base. The frame is slidably mounted on the first guide rod, and the frame is also provided with a threaded sleeve that matches the first threaded rod. One end of the first threaded rod is provided with a first driving member.

7. The bridge bearing deformation monitoring device according to claim 1, characterized in that, The second moving unit includes a second threaded rod and a second guide rod mounted vertically on the frame. The first mounting sleeve is slidably mounted on the second guide rod, and the first mounting sleeve is also provided with a threaded sleeve that matches the second threaded rod. One end of the second threaded rod is provided with a second driving member.

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