A real-time slope deformation monitoring device based on fiber optic sensors

Abstract

This utility model relates to the field of slope monitoring technology and proposes a real-time slope deformation monitoring device based on a fiber optic sensor. The design includes a main component, which comprises a base and perforations arranged in a ring around the base. An inclination adjustment component is installed inside the base, including a support plate that can rotate and lock inside the base. The inclination adjustment component also includes a vertical seat fixedly connected to the top of the support plate, a lifting adjustment component located inside the vertical seat capable of vertical raising and lowering, and a fiber optic sensor body located above the lifting adjustment component. This design solves the problem of poor adaptability in existing technologies that rely on manual rotation of a handwheel, cannot synchronously adjust the inclination angle, and are difficult to adapt to complex slope terrains such as multi-level slopes and irregular slopes, by using dual-degree-of-freedom precision adjustment and detection height adjustment.

Description

Technical Field

[0001] This utility model relates to the field of slope monitoring technology, specifically to a real-time slope deformation monitoring device based on fiber optic sensors. Background Technology

[0002] The real-time slope deformation monitoring device based on fiber optic sensors utilizes the high sensitivity, electromagnetic interference resistance, and corrosion resistance of fiber Bragg grating (FBG) sensors to achieve real-time monitoring of multi-dimensional parameters such as slope displacement, strain, and seepage. The FBG sensor senses changes in the period or refractive index of the fiber grating caused by soil deformation, converting physical quantities into measurable wavelength shift signals. Combined with distributed embedding technology, a high-density monitoring network can be constructed, covering the slope surface to key deep areas. The system boasts millimeter-level displacement measurement accuracy and a second-level data update frequency, supporting dual backup storage in the cloud and locally to ensure data security. By analyzing sensor array data in real time and combining it with machine learning algorithms, potential slip surfaces can be accurately located and landslide risk levels can be predicted, enabling graded early warning. This device is suitable for complex geological environments such as highways, railways, and mines, especially in remote mountainous areas or areas with severe electromagnetic interference, where its long lifespan and low maintenance costs are significant advantages, providing reliable technical support for geological disaster prevention and control. However, improving the adaptability of fiber optic sensors in real-time slope deformation monitoring is a pressing issue that needs to be addressed.

[0003] A search revealed that CN220105786U discloses a real-time monitoring device for slope deformation in deep foundation pit excavation. The device includes a base plate, ground nails, and a protective shell. An adjustment mechanism is installed on the top surface of the protective shell, and a detection mechanism is installed inside. Through a conductive positioning cone connected to a conductive rope, when the slope of the deep foundation pit deforms, the protective shell connected to the deep foundation pit changes position with the slope. The conductive positioning cone then contacts the conductive sleeve, connecting the audible and visual alarm to the battery via the conductive rope and conductive connecting wire. This causes the audible and visual alarm to continuously illuminate and emit an alarm sound, alerting workers to the slope deformation. By rotating the handwheel, the placement plate moves upward with the threaded sleeve, changing the height of the audible and visual alarm to a position visible to the naked eye, making the monitoring device adaptable to different terrains and easy to observe.

[0004] The height adjustment of the aforementioned real-time monitoring device for slope deformation in deep foundation pit excavation relies on manually turning a handwheel, which cannot adjust the tilt angle synchronously and is difficult to adapt to complex slope terrain (such as multi-level slopes and irregular slopes). Therefore, it has the problem of poor adaptability in slope monitoring. Utility Model Content

[0005] This invention proposes a real-time slope deformation monitoring device based on fiber optic sensors, which solves the problem that existing technologies rely on manual rotation of handwheels, cannot synchronously adjust the tilt angle, and are difficult to adapt to complex slope terrain (such as multi-level slopes and irregular slopes), thus resulting in poor adaptability of slope monitoring.

[0006] The technical solution of this utility model is as follows: A real-time slope deformation monitoring device based on fiber optic sensor, comprising a main component, the main component comprising a base and a perforation formed in a ring around the base, a tilt adjustment component disposed inside the base, the tilt adjustment component comprising a support plate that can rotate and lock inside the base, the tilt adjustment component comprising a vertical seat fixedly connected to the top of the support plate, a lifting adjustment component disposed inside the vertical seat that can be vertically raised and lowered, and a fiber optic sensor body disposed on the upper part of the lifting adjustment component.

[0007] Preferably, the main body component further includes a sub-base, which is fixedly connected to the side of the base. The main body component also includes a drilling rod, which corresponds to the number of holes, and each drilling rod is inserted into a hole.

[0008] Preferably, the tilt adjustment assembly includes a support plate, which is symmetrically and fixedly connected to the inner side of the sub-seat. The tilt adjustment assembly also includes a first rotating shaft, which is rotatably connected to the middle of the two sets of support plates.

[0009] Preferably, the tilt adjustment assembly further includes a worm gear fixedly connected to the middle of the first rotating shaft, and the tilt adjustment assembly further includes a first handle fixedly connected to the top of the first rotating shaft.

[0010] Preferably, the tilt adjustment assembly further includes a second rotating shaft, which is rotatably connected inside the base and fixedly connected to the support plate. The tilt adjustment assembly also includes a worm gear, which is fixedly connected to the outside of the second rotating shaft and is in contact with and meshing with the worm.

[0011] Preferably, the lifting adjustment assembly includes an inner rotating rod rotatably connected inside the vertical seat, and the lifting adjustment assembly also includes a first conical tooth fixedly connected to one end of the inner rotating rod, and the lifting adjustment assembly also includes a second handle fixedly connected to the other end of the inner rotating rod.

[0012] Preferably, the lifting adjustment assembly further includes a threaded rod, which is rotatably connected to the inner side of the vertical seat. The lifting adjustment assembly also includes a second conical tooth, which is fixedly connected to the lower end of the threaded rod. The second conical tooth is in contact with the first conical tooth and is in a meshing rotatable connection.

[0013] Preferably, the lifting adjustment assembly further includes a slide block, which is threadedly connected to the outside of the threaded rod, and the lifting adjustment assembly further includes an ear bracket, which is symmetrically and fixedly connected to the outside of the slide block.

[0014] Preferably, the lifting and adjusting assembly further includes an upper support box, which is located above the vertical base and is fixedly connected to the ear bracket.

[0015] Preferably, the lifting and adjusting assembly further includes a mesh groove plate, which is symmetrically and fixedly connected to the through slot at the bottom of the upper tray box. The lifting and adjusting assembly also includes a wire threading groove, which is equally spaced and opened through the side of the upper tray box.

[0016] The beneficial effects of this utility model are as follows:

[0017] I. Dual-degree-of-freedom precision adjustment: Adaptive tilt angle: The worm gear meshing mechanism enables stepless tilt angle adjustment of the support plate and fixes the angle through self-locking characteristics, ensuring that the fiber optic sensor body is always perpendicular to the slope, thus improving data accuracy.

[0018] II. Detection height adjustment: The bevel gear transmission drives the first bevel tooth + the second bevel tooth to drive the threaded rod, which in turn drives the slide to adjust the micron-level lifting accuracy to adapt to different height monitoring needs.

[0019] 3. Enhanced environmental adaptability: The ring-shaped perforation and drilling rod form multi-point anchoring, which increases the pull-out resistance by a factor of two; the mesh channel plate allows for rapid drainage, and the cable trays ensure standardized wiring, avoiding cable damage caused by wind, rain, and mud in the field. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0022] Figure 2 This is a schematic diagram of the main components of this utility model;

[0023] Figure 3 This is a schematic diagram of the tilt adjustment component of this utility model;

[0024] Figure 4 This is a schematic diagram of the lifting and adjusting component of this utility model;

[0025] In the diagram: 1. Main component; 11. Base; 111. Perforation; 12. Sub-base; 13. Drill rod; 2. Inclination adjustment component; 21. Support plate; 22. First rotating shaft; 221. Worm gear; 222. First handle; 23. Second rotating shaft; 231. Worm wheel; 24. Support plate; 25. Vertical seat; 3. Lifting adjustment component; 31. Second handle; 32. Inner rotating rod; 321. First conical tooth; 33. Threaded rod; 331. Second conical tooth; 34. Slide seat; 341. Ear bracket; 35. Upper support box; 351. Mesh channel plate; 352. Wiring channel; 4. Fiber optic sensor body. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 This utility model provides a technical solution: a real-time slope deformation monitoring device based on fiber optic sensor, including a main component 1, the main component 1 including a base 11 and a perforation 111 formed in a ring around the base 11, a tilt adjustment component 2 is provided inside the base 11, the tilt adjustment component 2 includes a support plate 24 that can rotate and lock inside the base 11, the tilt adjustment component 2 also includes a vertical seat 25 fixedly connected to the top of the support plate 24, a lifting adjustment component 3 that can be vertically raised and lowered inside the vertical seat 25, and a fiber optic sensor body 4 provided on the upper part of the lifting adjustment component 3;

[0028] This design solves the problem of poor adaptability of existing technologies that rely on manual rotation of the handwheel, cannot synchronously adjust the tilt angle, and are difficult to adapt to complex slope terrains such as multi-level slopes and irregular slopes, by using dual-degree-of-freedom precision adjustment and detection height adjustment.

[0029] Please see Figure 2 The main component 1 also includes a sub-base 12, which is fixedly connected to the side of the base 11. The main component 1 also includes a drilling rod 13, which corresponds to the number of through holes 111, and each drilling rod 13 is inserted into the through hole 111.

[0030] The base 11 can be fixed in the ground by using the drilling rod 13 in conjunction with the through hole 111;

[0031] The worm gear 221 and worm wheel 231 can be protected by the auxiliary seat 12 to prevent foreign objects such as dust from entering the external environment and causing jamming at the meshing point.

[0032] Please see Figure 3 The tilt adjustment component 2 includes a support plate 21, which is symmetrically and fixedly connected to the inner side of the sub-base 12. The tilt adjustment component 2 also includes a first rotating shaft 22, which is rotatably connected to the middle of the two sets of support plates 21.

[0033] The tilt adjustment assembly 2 also includes a worm gear 221, which is fixedly connected to the middle of the first rotating shaft 22. The tilt adjustment assembly 2 also includes a first handle 222, which is fixedly connected to the top of the first rotating shaft 22.

[0034] The tilt adjustment assembly 2 also includes a second rotating shaft 23, which is rotatably connected inside the base 11. The second rotating shaft 23 is fixedly connected to the support plate 24. The tilt adjustment assembly 2 also includes a worm gear 231, which is fixedly connected to the outside of the second rotating shaft 23. The worm gear 231 is in contact with the worm 221 and is meshed and rotatably connected.

[0035] This design allows the support plate 24 to drive the vertical base 25 and the fiber optic sensor body 4 located on the upper part of the vertical base 25 to tilt and rotate, thereby adapting to different slope angles.

[0036] The self-locking effect of the meshing of the worm 221 and the worm wheel 231 can prevent loosening after rotation.

[0037] Please see Figure 4 The lifting adjustment assembly 3 includes an inner rotating rod 32, which is rotatably connected inside the vertical seat 25. The lifting adjustment assembly 3 also includes a first conical tooth 321, which is fixedly connected to one end of the inner rotating rod 32. The lifting adjustment assembly 3 also includes a second handle 31, which is fixedly connected to the other end of the inner rotating rod 32.

[0038] The lifting adjustment assembly 3 also includes a threaded rod 33, which is rotatably connected to the inner side of the vertical seat 25. The lifting adjustment assembly 3 also includes a second conical tooth 331, which is fixedly connected to the lower end of the threaded rod 33. The second conical tooth 331 is in contact with the first conical tooth 321 and is meshed and rotatably connected.

[0039] The lifting adjustment assembly 3 also includes a slide 34, which is threadedly connected to the outside of the threaded rod 33. The lifting adjustment assembly 3 also includes an ear bracket 341, which is symmetrically and fixedly connected to the outside of the slide 34.

[0040] The lifting and adjusting assembly 3 also includes an upper support box 35, which is located above the vertical base 25 and is fixedly connected to the ear bracket 341.

[0041] This design allows the slide 34 and ear bracket 341 to move the upper tray 35 up and down above the vertical seat 25, thereby meeting the height adjustment requirements of the fiber optic sensor body 4.

[0042] Please see Figure 4 The lifting and adjusting assembly 3 also includes a mesh channel plate 351, which is symmetrically and fixedly connected to the through slot at the bottom of the upper tray box 35. The lifting and adjusting assembly 3 also includes a wire threading groove 352, which is equally spaced and opened through the side of the upper tray box 35.

[0043] By providing a mesh trough plate 351 at the bottom of the upper tray 35, rainwater can be prevented from accumulating at the upper tray 35.

[0044] The cable tray 352 facilitates the wiring of the fiber optic sensor body 4, preventing the cable of the fiber optic sensor body 4 from accumulating and tangling at the upper tray 35.

[0045] Working principle:

[0046] First, select a suitable slope location and place the base 11 on the slope. Then, use external tools to insert the drilling rod 13, which is inserted into the hole 111, into the ground.

[0047] When installing the fiber optic sensor body 4 on top of the upper tray 35, the mesh groove plate 351 at the bottom of the upper tray 35 can prevent rainwater from accumulating at the upper tray 35; the cable groove 352 can facilitate the wiring of the fiber optic sensor body 4 and prevent the cable of the fiber optic sensor body 4 from accumulating and tangling at the upper tray 35.

[0048] Specifically, holding and turning the first handle 222 can drive the first rotating shaft 22 and the worm 221 to rotate, and under the meshing cooperation of the worm 221 and the worm wheel 231, the second rotating shaft 23 located inside the worm wheel 231 can drive the support plate 24 and the vertical seat 25 to perform tilting rotation.

[0049] Specifically, gripping and turning the second handle 31 can drive the inner rotating rod 32 to rotate inside the vertical seat 25. Under the meshing of the first conical tooth 321 and the second conical tooth 331, the threaded rod 33 located at the top of the second conical tooth 331 will rotate synchronously. At this time, the slide 34 threaded to the outside of the threaded rod 33 can perform lifting and lowering work inside the vertical seat 25. At the same time, the ear bracket 341 located outside the slide 34 will also drive the mesh plate 351 and the fiber optic sensor body 4 to move up and down above the vertical seat 25.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A real-time slope deformation monitoring device based on fiber optic sensors, comprising a main component (1), characterized in that, The main component (1) includes a base (11) and a perforation (111) arranged in a ring around the base (11). A tilt adjustment component (2) is provided inside the base (11). The tilt adjustment component (2) includes a support plate (24) that can rotate and lock inside the base (11). The tilt adjustment component (2) also includes a vertical seat (25) fixedly connected to the top of the support plate (24). A lifting adjustment component (3) that can be vertically raised and lowered is provided inside the vertical seat (25). An optical fiber sensor body (4) is provided on the upper part of the lifting adjustment component (3).

2. The real-time slope deformation monitoring device based on fiber optic sensors according to claim 1, characterized in that, The main component (1) also includes a sub-base (12), which is fixedly connected to the side of the base (11). The main component (1) also includes a drilling rod (13), which corresponds to the number of through holes (111), and each drilling rod (13) is inserted into the through hole (111).

3. The real-time slope deformation monitoring device based on fiber optic sensors according to claim 1, characterized in that, The tilt adjustment assembly (2) includes a support plate (21), which is symmetrically fixedly connected to the inner side of the sub-seat (12). The tilt adjustment assembly (2) also includes a first rotating shaft (22), which is rotatably connected to the middle of the two sets of support plates (21).

4. The real-time slope deformation monitoring device based on fiber optic sensors according to claim 3, characterized in that, The tilt adjustment assembly (2) further includes a worm gear (221) which is fixedly connected to the middle of the first rotating shaft (22). The tilt adjustment assembly (2) also includes a first handle (222) which is fixedly connected to the top of the first rotating shaft (22).

5. The real-time slope deformation monitoring device based on fiber optic sensors according to claim 4, characterized in that, The tilt adjustment assembly (2) further includes a second rotating shaft (23), which is rotatably connected inside the base (11). The second rotating shaft (23) is fixedly connected to the support plate (24). The tilt adjustment assembly (2) also includes a worm gear (231), which is fixedly connected to the outside of the second rotating shaft (23). The worm gear (231) is in contact with the worm (221) and is meshed and rotatably connected.

6. The real-time slope deformation monitoring device based on fiber optic sensors according to claim 1, characterized in that, The lifting adjustment assembly (3) includes an inner rotating rod (32), which is rotatably connected inside the vertical seat (25). The lifting adjustment assembly (3) also includes a first conical tooth (321), which is fixedly connected to one end of the inner rotating rod (32). The lifting adjustment assembly (3) also includes a second handle (31), which is fixedly connected to the other end of the inner rotating rod (32).

7. The real-time slope deformation monitoring device based on fiber optic sensors according to claim 6, characterized in that, The lifting adjustment assembly (3) also includes a threaded rod (33), which is rotatably connected to the inner side of the vertical seat (25). The lifting adjustment assembly (3) also includes a second conical tooth (331), which is fixedly connected to the lower end of the threaded rod (33). The second conical tooth (331) is in contact with the first conical tooth (321) and is in a meshing rotatable connection.

8. The real-time slope deformation monitoring device based on fiber optic sensors according to claim 7, characterized in that, The lifting adjustment assembly (3) also includes a slide (34), which is threadedly connected to the outside of the threaded rod (33). The lifting adjustment assembly (3) also includes an ear bracket (341), which is symmetrically fixedly connected to the outside of the slide (34).

9. A real-time slope deformation monitoring device based on a fiber optic sensor according to claim 8, characterized in that, The lifting adjustment assembly (3) also includes an upper support box (35), which is located above the vertical base (25) and is fixedly connected to the ear bracket (341).

10. A real-time slope deformation monitoring device based on a fiber optic sensor according to claim 9, characterized in that, The lifting adjustment assembly (3) also includes a mesh groove plate (351), which is symmetrically fixedly connected to the through slot at the bottom of the upper tray (35). The lifting adjustment assembly (3) also includes a wire threading groove (352), which is equally spaced through slots on the side of the upper tray (35).

Images