Bridge support displacement real-time detection device for bridge installation and method thereof

Abstract

The application discloses a bridge support displacement real-time detection device for bridge installation and a method thereof, which comprises a base plate, a plurality of displacement detection mechanisms, an optical strain system, a clamping piece, a movable plate, a moving plate, a rotating plate, a movable piece, a rotating ring plate, a pressing plate, a fixing cylinder, a sleeve rod, a limiting slide plate control piece; the whole device is clamped on a bridge support cushion stone, so that the position of the rotating ring plate corresponds to the position of the bridge support cushion stone, and the position of the displacement detection mechanism corresponds to the bridge support; the threaded rod is rotated, so that the rotating ring plate is clamped and fixed with the side of the bridge support cushion stone; then the adjusting gear is rotated, so that the limiting slide plate drives the movable plate to be inclined, the displacement detection mechanism is inclined, the inclination angle of the displacement detection mechanism is adjusted, the subsequent displacement detection mechanism is facilitated to be in contact with the bridge support at an inclined angle, and finally the cylinder is started to move the displacement detection mechanism on the outer surface of the bridge support; the method is simple in operation and does not need to adjust and fix the displacement detection mechanisms one by one.

Description

Technical Field

[0001] This invention relates to the field of bridge bearing detection structure technology, specifically to a real-time detection device and method for bridge bearing displacement during bridge installation. Background Technology

[0002] In bridge engineering, after the cap beam is poured, bridge bearing pads are poured on the top surface of the cap beam, and the bridge bearings are placed stably in the center of the bridge bearing pads. Finally, the precast beams are placed on top of the bridge bearings, thus completing the bridge erection.

[0003] When detecting the displacement of bridge bearings, multiple displacement detection mechanisms need to be placed close to the outer surface of the bridge bearings. Existing real-time detection devices for bridge bearing displacement require adjusting and fixing each displacement detection mechanism to the bridge one by one, which is inconvenient and cannot adjust and fix multiple displacement detection mechanisms at the same time.

[0004] To this end, we propose a real-time detection device and method for bridge bearing displacement during bridge installation. Summary of the Invention

[0005] The purpose of this invention is to provide a real-time detection device for bridge bearing displacement during bridge installation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a real-time detection device for bridge bearing displacement for bridge installation, comprising a base plate, wherein a plurality of displacement detection mechanisms are movably fitted on the base plate, and the displacement detection mechanisms are provided with an optical strain system for measuring the deformation of the outer surface of the bridge bearing.

[0007] It also includes a clamping component and two movable plates and a moving plate that are connected and fixed to the displacement detection mechanism. The movable plates have rotating plates that are movably inserted through them and are distributed at an incline. The two rotating plates are rotatably connected to the two ends of the moving plate. The base plate is provided with a movable component. The movable plate moves through the movable component to make multiple displacement detection mechanisms move synchronously and press against the outer surface of the bridge support.

[0008] Multiple rotating ring plates, each with a pressure plate rotatably connected to its end, and two rotating ring plates are rotated and pressed against the corner of the bridge bearing pad stone by the clamping member, and the pressure plate forms a pressure between the base plate and the side of the bridge bearing pad stone.

[0009] The rotating ring plate is slidably fitted with a fixed cylinder that is connected and fixed to the base plate. A sleeve rod is movably sleeved inside the fixed cylinder. A limiting slide plate that slides with the movable plate is fixedly connected to the top of the sleeve rod. The base plate is provided with a control component that makes the limiting slide plate rotate.

[0010] Preferably, the movable component includes a baffle plate that is fixedly connected to the base plate, a cylinder is fixedly connected to the baffle plate, the output shaft of the cylinder is fixedly connected to the movable plate, the base plate has a U-shaped structure, and fixed plates are fixedly connected to both ends of the base plate, and the fixed plates are provided with movable grooves that slide with the rotating plate.

[0011] Preferably, the clamping member includes two threaded rods that are connected and fixed to each other, the threads of the two threaded rods are arranged in opposite directions, and sliders are threadedly connected to the two threaded rods. The top of the sliders is rotatably connected to the end of the rotating ring plate, and the bottom of the sliders is rotatably connected to the pressure plate through a torsion spring.

[0012] Preferably, the rotating ring plate has an arc-shaped groove in the middle that slides with the fixed cylinder, and the rotating ring plate has a groove on its side that engages with the corner of the bridge bearing pad stone.

[0013] Preferably, the clamping member further includes a connecting plate rotatably connected to the base plate, with both ends of the connecting plate rotatably connected to the ends of the two pressing plates respectively, and the end of the other pressing plate pressing against the baffle.

[0014] Preferably, the control component includes an adjusting gear rotatably connected to the base plate, and the adjusting gear is fixedly connected to a sleeve rod inserted into the base plate.

[0015] Preferably, a toggle gear extending through the base plate is rotatably connected to the base plate, the pitch circle radius of the toggle gear is smaller than the pitch circle radius of the adjusting gear, and an elastic plate is rotatably connected inside the base plate.

[0016] An operating method for a real-time bridge bearing displacement detection device for bridge installation, the specific operating method of which includes the following steps:

[0017] S1. Rotate the threaded rod to bring the two sliders closer together, thereby causing the two rotating ring plates to rotate and the ends of the two rotating ring plates to move away from each other, thereby opening the gap between the two rotating ring plates;

[0018] S2. Slide the movable plate along the rotating plate toward the fixed plate, thereby moving the multiple displacement detection mechanisms away from each other;

[0019] S3. Insert the entire device through the gap so that the position of the rotating ring plate corresponds to the position of the bridge bearing pad stone, and the position of the displacement detection mechanism corresponds to the bridge bearing.

[0020] S4. Rotate the threaded rod in the opposite direction to make the rotating ring plate engage and fix with the side of the bridge bearing pad stone. One of the pressure plates presses against the side of the bridge bearing pad stone, and the other pressure plate presses against the baffle.

[0021] S5. Rotate the adjusting gear to make the limiting slide plate drive the movable plate to tilt, thereby tilting the displacement detection mechanism and adjusting the tilt angle of the displacement detection mechanism so that the displacement detection mechanism can press against the bridge support at the tilt angle in the future.

[0022] S6. Start the cylinder to move the displacement detection mechanism on the outer surface of the bridge support.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] First, rotate the threaded rod to bring the two sliders closer together, thereby causing the two rotating ring plates to rotate and the ends of the two rotating ring plates to move away from each other, thus opening the gap between the two rotating ring plates. Then, slide the movable plate along the rotating plate towards the fixed plate, thereby moving the multiple displacement detection mechanisms away from each other.

[0025] Insert the entire device through the gap so that the position of the rotating ring plate corresponds to the position of the bridge bearing pad stone, and the position of the displacement detection mechanism corresponds to the bridge bearing.

[0026] Rotate the threaded rod in the opposite direction to make the rotating ring plate engage and fix with the side of the bridge bearing pad stone. One pressure plate presses against the side of the bridge bearing pad stone, and another pressure plate presses against the baffle. Then rotate the adjusting gear to make the limiting slide slide drive the movable plate to tilt, thereby tilting the displacement detection mechanism. Adjust the tilt angle of the displacement detection mechanism to facilitate the subsequent displacement detection mechanism to press against the bridge bearing at the tilt angle. Finally, start the cylinder to move the displacement detection mechanism to the outer surface of the bridge bearing.

[0027] This method is simple to operate and does not require adjusting and fixing multiple displacement detection mechanisms one by one. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention and its cooperation with the bridge bearing pad stone and the bridge bearing.

[0029] Figure 2 This is a side view schematic diagram of the overall structure of the present invention and its cooperation structure with the bridge bearing pad stone and the bridge bearing.

[0030] Figure 3 This is a schematic diagram showing the overall structure of the invention and the disassembled structure of the bridge bearing pad and the bridge bearing.

[0031] Figure 4 This is a schematic diagram of the disassembly structure of the rotating plate and the fixed plate of the present invention;

[0032] Figure 5 This is a schematic diagram of the disassembly structure of the limiting slide plate and the rotating ring plate of the present invention;

[0033] Figure 6 This is a schematic diagram of the control component of the present invention detached from the base plate and rotating ring plate;

[0034] Figure 7 This is a schematic diagram of the disassembled structure of the fixing cylinder and the sleeve rod of the present invention;

[0035] Figure 8 This is a schematic diagram of the disassembled structure of one of the sliders and threaded rods in this invention;

[0036] Figure 9 This is a schematic diagram showing the disassembled structure of the threaded rod and another slider of the present invention;

[0037] Figure 10 This is a schematic diagram showing the disassembled structure of the pressure plate and the connecting plate of the present invention;

[0038] Figure 11 This is a schematic diagram of the cooperative structure of the rotating plate, the movable plate, and the fixed plate of the present invention;

[0039] Figure 12 This is a schematic diagram of the structure of the rotating plate of the present invention, showing the separation of the movable plate and the fixed plate;

[0040] Figure 13 This is a schematic diagram of the disassembled structure of the movable plate and the limiting slide plate of the present invention.

[0041] In the diagram: 1. Base plate; 2. Displacement detection mechanism; 3. Movable plate; 4. Moving plate; 5. Rotating plate; 6. Rotating ring plate; 7. Pressing plate; 8. Fixed cylinder; 9. Sleeve rod; 10. Limiting slide plate; 11. Baffle; 12. Cylinder; 13. Fixed plate; 14. Movable groove; 15. Threaded rod; 16. Slider; 17. Arc groove; 18. Slot; 19. Connecting plate; 20. Adjusting gear; 21. Actuating gear; 22. Elastic plate; 23. Limiting ring plate. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1-13This invention provides a real-time bridge bearing displacement detection device for bridge installation, comprising: a base plate 1, on which multiple displacement detection mechanisms 2 are movably fitted. The displacement detection mechanism 2 in this solution includes a horizontal displacement sensor and a vertical displacement sensor. For details, please refer to the displacement detection mechanism 2 in a bridge bearing displacement detection device in prior art CN210981200U.

[0044] The displacement detection mechanism 2 is equipped with an optical strain system for measuring the deformation of the outer surface of the bridge bearing. The optical strain system in this application includes a camera, a handheld computer, a telescopic bracket, and a tripod. The camera includes a camera working part, a signal transceiver, a base, and a spherical gimbal. The spherical gimbal is wirelessly controlled by the signal transceiver and the handheld computer to achieve the rotation of the camera. The working section of the camera working part is circular, including a high-definition spherical infrared lens with a CMOS image sensor in the center and several infrared LEDs on the edge of the working section. The camera is fixed on the telescopic bracket, which includes a bracket base, a telescopic component, a drive mechanism, and a control system. The control system is wirelessly connected to the handheld computer. The telescopic component is composed of several interlocking telescopic aluminum-magnesium alloy tubes. For details, please refer to the bridge bearing deformation and disease detection system with publication number CN105091770B.

[0045] It is worth noting that optical strain systems can also be used to measure the length, width, thickness, and surface roughness of supports.

[0046] It also includes: a clamping component and two movable plates 3 and a moving plate 4 that are connected and fixed to the displacement detection mechanism 2. The movable plates 3 have rotating plates 5 that are movably passed through them and are distributed at an incline. The two rotating plates 5 are rotatably connected to the two ends of the moving plate 4. The base plate 1 is provided with a movable component. The movable moving plate 4, through the movable component, causes multiple displacement detection mechanisms 2 to move synchronously and press against the outer surface of the bridge support.

[0047] Multiple rotating ring plates 6, with a pressing plate 7 rotatably connected to the end of each rotating ring plate 6. Two rotating ring plates 6 are rotated and pressed against the corner of the bridge bearing pad stone by a clamping member, and the pressing plate 7 forms a pressing between the base plate 1 and the side of the bridge bearing pad stone.

[0048] A fixed cylinder 8, which is connected and fixed to the base plate 1, is slidably fitted on the rotating ring plate 6. A sleeve rod 9 is movably sleeved inside the fixed cylinder 8. A limiting slide plate 10, which slides with the movable plate 3, is fixedly connected to the top of the sleeve rod 9. A control component is provided on the base plate 1 to make the limiting slide plate 10 rotate.

[0049] An operating method for a real-time bridge bearing displacement detection device for bridge installation, the specific operating method of which includes the following steps:

[0050] S1. Rotate the threaded rod 15 to bring the two sliders 16 closer together, thereby causing the two rotating ring plates 6 to rotate and the ends of the two rotating ring plates 6 to move away from each other, thereby opening the gap between the two rotating ring plates 6.

[0051] S2. Slide the movable plate 3 along the rotating plate 5 toward the fixed plate 13, thereby moving the multiple displacement detection mechanisms 2 away from each other;

[0052] S3. Insert the entire device through the gap so that the position of the rotating ring plate 6 corresponds to the position of the bridge bearing pad stone, and the position of the displacement detection mechanism 2 corresponds to the bridge bearing.

[0053] S4. Rotate the threaded rod 15 in the opposite direction to make the rotating ring plate 6 engage and fix with the side of the bridge bearing pad stone. One pressure plate 7 presses against the side of the bridge bearing pad stone, and the other pressure plate 7 presses against the baffle 11.

[0054] S5. Rotate the adjusting gear 20 to make the limiting slide plate 10 drive the movable plate 3 to tilt, thereby tilting the displacement detection mechanism 2. Adjust the tilt angle of the displacement detection mechanism 2 so that the subsequent displacement detection mechanism 2 can press against the bridge support at the tilt angle.

[0055] S6. Start cylinder 12 to move displacement detection mechanism 2 to the outer surface of bridge support, so that displacement detection mechanism 2 can detect the displacement of bridge support in real time.

[0056] The movable component includes a baffle 11 that is fixedly connected to the base plate 1. A cylinder 12 is fixedly connected to the baffle 11. The output shaft of the cylinder 12 is fixedly connected to the movable plate 4. The base plate 1 has a U-shaped structure. Fixed plates 13 are fixedly connected to both ends of the base plate 1. The fixed plates 13 have movable grooves 14 that slide with the rotating plate 5.

[0057] Once the rotating ring plate 6 and the pressing plate 7 are connected and fixed to the bridge bearing pad, the moving plate 4 is moved by the cylinder 12, and under the limiting action of the movable groove 14, the rotating plate 5 is moved, thereby causing the movable plate 3 to slide along the limiting slide plate 10, so that the movable plate 3 and the moving plate 4 move closer to each other and move close to the bridge bearing, thereby driving multiple displacement detection mechanisms 2 to move close to the bridge bearing, so that the displacement detection mechanisms 2 stably contact the outer surface of the bridge bearing, which facilitates the displacement detection mechanisms 2 to detect the displacement of the bridge bearing in real time.

[0058] The clamping component includes two threaded rods 15 that are connected and fixed to each other. The threads of the two threaded rods 15 are arranged in opposite directions. A slider 16 is threadedly connected to the two threaded rods 15. The top of the slider 16 is rotatably connected to the end of the rotating ring plate 6, and the bottom of the slider 16 is rotatably connected to the pressure plate 7 through a torsion spring.

[0059] By rotating the threaded rod 15, the slider 16 moves along the threaded rod 15. The two sliders 16 move away from each other or move closer to each other, and the sliders 16 will not tilt at an angle. This is because the two limiting ring plates 23 are fixed on the outer surface of the fixed cylinder 8. The two limiting ring plates 23 restrict the rotating ring plate 6, thereby ensuring the smooth movement of the rotating ring plate 6 and preventing the vertical angle change, that is, the horizontal movement of the rotating ring plate 6 relative to the base plate 1.

[0060] The two sliders 16 move, and the rotating ring plate 6 rotates due to the restriction of the fixed cylinder 8. The rotating ring plate 6 presses against the corner of the bridge bearing pad stone (by the slot 18 on the rotating ring plate 6 is tightly engaged with the corner of the bridge bearing pad stone). At the same time, the torsion spring causes the pressing plate 7 to press against the side of the bridge bearing pad stone, thereby making the entire device stably connected to the bridge bearing pad stone. The fixed cylinder 8 and the arc groove 17 slide relative to each other in an adaptive manner.

[0061] The threaded rod 15 is not fixed in position and is not connected to the base plate 1, which facilitates the rotation of the rotating ring plate 6. Through the sliding fit of the arc plate, the position of the rotating ring plate 6 and the pressure plate 7 are adaptively adjusted, which facilitates the tight engagement and fixation of the entire device with the bridge bearing pad stone.

[0062] The rotating ring plate 6 has an arc-shaped groove 17 in the middle that slides with the fixed cylinder 8. The rotating ring plate 6 has a locking groove 18 on its side that engages with the corner of the bridge bearing pad. The rotating ring plate 6 rotates to be close to the corner of the bridge bearing pad, so that the locking groove 18 engages with the corner of the bridge bearing pad. The locking groove 18 is provided with a rubber layer, so that the locking groove 18 is tightly engaged with the corner of the bridge bearing pad.

[0063] The clamping component also includes a connecting plate 19 rotatably connected to the base plate 1. Both ends of the connecting plate 19 are rotatably connected to the ends of the two pressing plates 7 respectively, and the end of the other pressing plate 7 is pressed against the baffle 11.

[0064] When the threaded rod 15 rotates, it drives the rotating ring plate 6 to rotate and press against the bridge bearing pad stone. The sliders 16 move closer to each other, causing the connecting plate 19 to rotate. This, in conjunction with the torsion spring, further promotes the rotation of the pressing plate 7, so that the pressing plate 7 tightly presses against the side of the bridge bearing pad stone. In conjunction with the slot 18 of the rotating ring plate 6, the base plate 1 is stably connected and fixed to the bridge bearing pad stone.

[0065] It is worth noting that: one pressure plate 7 presses against the bridge bearing pad stone, and the other pressure plate 7 presses against the baffle 11. The cooperation of the two pressure plates 7 adaptively adjusts the position of the limiting ring plate, and the horizontal plane position of the threaded rod 15 also changes adaptively. The arc groove 17 on the limiting ring plate slides adaptively with the fixing cylinder 8, so that the pressure plate 7 and the rotating ring plate 6 automatically adjust and are more tightly fixed to the bridge bearing pad stone.

[0066] The control component includes an adjusting gear 20 that is rotatably connected to the base plate 1. The adjusting gear 20 is connected and fixed to a sleeve rod 9 that passes through the base plate 1. By rotating the adjusting gear 20, the sleeve rod 9 rotates, thereby causing the limiting slide plate 10 to rotate by an angle, while the fixing cylinder 8 remains stationary.

[0067] A toggle gear 21 is rotatably connected to the base plate 1, extending out of the base plate 1. The pitch circle radius of the toggle gear 21 is smaller than that of the adjustment gear 20. An elastic plate 22 is rotatably connected inside the base plate 1. By rotating the toggle gear 21, the toggle gear 21 rotates, which in turn drives the adjustment gear 20 to rotate, thereby causing the sleeve rod 9 located inside the fixed cylinder 8 to rotate. This causes the limiting slide plate 10 at the top of the sleeve rod 9 to rotate. The limiting slide plate 10 has a U-shaped structure, which causes the movable plate 3 to tilt synchronously, thereby adjusting the angle of the displacement detection mechanism 2. This allows the subsequent displacement detection mechanism 2 to move at this angle and press against the outer surface of the bridge support without affecting the sliding fit between the movable plate 3 and the limiting slide plate 10.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0069] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A real-time detection device for bridge bearing displacement during bridge installation, characterized in that, include: A base plate (1) is provided with multiple displacement detection mechanisms (2) that are movably fitted on the base plate (1). The displacement detection mechanisms (2) are provided with an optical strain system for measuring the deformation of bridge bearings. It also includes: a clamping component and two movable plates (3) and a moving plate (4) that are fixedly connected to the displacement detection mechanism (2). The movable plate (3) has a rotating plate (5) that is movably inserted through it and is distributed at an incline. The two rotating plates (5) are rotatably connected to the two ends of the moving plate (4). The base plate (1) is provided with a movable component. The movable plate (4) moves through the movable component to make multiple displacement detection mechanisms (2) move synchronously and press against the outer surface of the bridge support. Multiple rotating ring plates (6), with a pressing plate (7) rotatably connected to the end of each rotating ring plate (6). The two rotating ring plates (6) are rotated and pressed against the corner of the bridge bearing pad stone by the clamping member, and the pressing plate (7) forms a pressing between the base plate (1) and the side of the bridge bearing pad stone. The rotating ring plate (6) is slidably fitted with a fixed cylinder (8) that is connected and fixed to the base plate (1). A sleeve rod (9) is movably sleeved inside the fixed cylinder (8). A limiting slide plate (10) that slides with the movable plate (3) is fixedly connected to the top of the sleeve rod (9). The base plate (1) is provided with a control component that makes the limiting slide plate (10) rotate.

2. The bridge bearing displacement real-time detection device for bridge installation according to claim 1, characterized in that: The movable component includes a baffle (11) that is fixedly connected to the base plate (1). A cylinder (12) is fixedly connected to the baffle (11). The output shaft of the cylinder (12) is fixedly connected to the moving plate (4). The base plate (1) has a U-shaped structure. Fixed plates (13) are fixedly connected to both ends of the base plate (1). The fixed plates (13) have movable grooves (14) that slide with the rotating plate (5).

3. The bridge bearing displacement real-time detection device for bridge installation according to claim 2, characterized in that: The clamping member includes two threaded rods (15) that are connected and fixed to each other. The thread directions of the two threaded rods (15) are opposite. A slider (16) is threadedly connected to the two threaded rods (15). The top of the slider (16) is rotatably connected to the end of the rotating ring plate (6). The bottom of the slider (16) is rotatably connected to the pressure plate (7) through a torsion spring.

4. The bridge bearing displacement real-time detection device for bridge installation according to claim 3, characterized in that: The rotating ring plate (6) has an arc-shaped groove (17) in the middle that slides with the fixed cylinder (8), and the rotating ring plate (6) has a groove (18) on its side that engages with the corner of the bridge bearing pad stone.

5. A bridge bearing displacement real-time detection device for bridge installation according to claim 4, characterized in that: The clamping member also includes a connecting plate (19) rotatably connected to the base plate (1). The two ends of the connecting plate (19) are rotatably connected to the ends of the two pressing plates (7), and the end of the other pressing plate (7) is pressed against the baffle (11).

6. A bridge bearing displacement real-time detection device for bridge installation according to claim 5, characterized in that: The control component includes an adjusting gear (20) rotatably connected to the base plate (1), and the adjusting gear (20) is connected and fixed to a sleeve rod (9) that passes through the base plate (1).

7. A bridge bearing displacement real-time detection device for bridge installation according to claim 6, characterized in that: A toggle gear (21) is rotatably connected to the base plate (1) and extends through the base plate (1). The pitch circle radius of the toggle gear (21) is smaller than that of the adjustment gear (20). An elastic plate (22) is rotatably connected inside the base plate (1).

8. An operation method for a bridge bearing displacement real-time detection device for bridge installation, characterized in that, According to claim 7, the real-time detection device for bridge bearing displacement during bridge installation includes the following steps in its specific operation: S1. Rotate the threaded rod (15) to bring the two sliders (16) closer to each other, thereby causing the two rotating ring plates (6) to rotate and the ends of the two rotating ring plates (6) to move away from each other, thereby opening the gap between the two rotating ring plates (6); S2. Slide the movable plate (3) along the rotating plate (5) toward the fixed plate (13) so that the multiple displacement detection mechanisms (2) move away from each other; S3. Insert the entire device through the gap so that the position of the rotating ring plate (6) corresponds to the position of the bridge bearing pad stone, and the position of the displacement detection mechanism (2) corresponds to the bridge bearing. S4. Rotate the threaded rod (15) in the opposite direction to make the rotating ring plate (6) engage and fix with the side of the bridge bearing pad stone. One of the pressure plates (7) presses against the side of the bridge bearing pad stone, and the other pressure plate (7) presses against the baffle (11). S5. Rotate the adjusting gear (20) to make the limiting slide plate (10) drive the movable plate (3) to tilt, thereby tilting the displacement detection mechanism (2) and adjusting the tilt angle of the displacement detection mechanism (2) so that the displacement detection mechanism (2) can press against the bridge support at the tilt angle in the future. S6. Start the cylinder (12) to move the displacement detection mechanism (2) on the outer surface of the bridge support.

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