Sensing device for displacement of deep soil body of side slope

Abstract

The utility model discloses a device for sensing displacement of a deep soil body of a side slope, and relates to the field of side slope monitoring. Through the arrangement of the cleaning mechanism, after detection is completed, the cleaning head is used for cleaning the guide groove of the inclinometer pipe, impurities such as rock-soil particles and silt are effectively removed, the guide groove is prevented from being blocked, it is guaranteed that the inclinometer probe smoothly moves in the pipe, the abrasion risk of the probe is reduced, and the precision of displacement measurement of the deep soil body of the side slope is improved; due to the arrangement of the cleaning mechanism, friction and collision between the inclinometer probe and the guide groove are reduced, abrasion of the probe due to blockage of the guide groove is reduced, the service life of the inclinometer probe and the service life of the whole sensing device are prolonged, the equipment maintenance and replacement cost is reduced, the cleaning head is detachably installed at the end of the transmission plate, and when the cleaning head is seriously abraded, the cleaning head can be cleaned. And the cleaning mechanism can be replaced conveniently and quickly only by dismounting the bolt, so that the cleaning mechanism is ensured to keep a good cleaning effect all the time, and the measurement work is further ensured to be carried out smoothly.

Description

Technical Field

[0001] This utility model relates to the field of slope monitoring, specifically a sensing device for the displacement of deep soil in slopes. Background Technology

[0002] Slope stability monitoring is an important topic in geotechnical engineering and geological disaster prevention. Especially for slopes of projects such as reservoirs, highways, and railways, real-time sensing of deep soil displacement is directly related to project safety and the timeliness of disaster early warning. Traditional monitoring methods mostly rely on equipment such as inclinometers to sense and acquire soil displacement data at different depths through inclinometer tubes.

[0003] Currently available inclinometers mainly consist of an inclinometer tube, an inclinometer probe, a cable, a reader, and a calibration device. The inclinometer tube is pre-embedded in the borehole and is mostly made of aluminum alloy or PVC, with orthogonal guide grooves to ensure verticality and deformation resistance. The inclinometer probe includes a core sensor unit containing an accelerometer, a temperature compensation module, and a pulley / roller mechanism, and its waterproof rating must reach IP68. The cable and reader include a tensile-resistant cable for data transmission, and the reader displays real-time angle values, with some supporting Bluetooth / WiFi remote transmission. By measuring the change in the inclination angle of the inclinometer tube in the borehole, the horizontal or vertical displacement of the deep soil can be calculated. Its core advantage lies in its high-precision and deep-depth monitoring capabilities, and it is widely used in landslide early warning, foundation pit support, dam safety, and other fields.

[0004] However, in actual use, the inclinometers currently on the market are often clogged in complex geological environments. Impurities such as soil particles, mud, and sand can enter the guide groove due to soil displacement and groundwater flow. This blockage not only affects the smooth movement of the inclinometer probe within the tube and increases the risk of probe wear, but may also lead to deviations in the measurement data, making it impossible to accurately reflect the soil displacement. In order to improve the accuracy of each sensing and detection, there is an urgent need to improve the existing soil displacement sensing devices. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a sensing device for the displacement of deep soil in slopes, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sensing device for deep soil displacement on slopes, comprising a sensing probe body and a pulley mechanism, wherein a cleaning mechanism is provided inside the sensing probe body for cleaning the guide groove of the inclinometer tube;

[0007] The cleaning mechanism includes a swing block rotatably installed inside the sensing probe body, and a transmission plate is rotatably installed at the end of the swing block, and an elastic element is provided at the position where the swing block and the transmission plate are rotatably connected.

[0008] The cleaning mechanism also includes a cleaning head that is detachably mounted on the end of the transmission plate, and the cleaning head is located on the same vertical line as the pulley mechanism. The sensing probe body is provided with a drive mechanism for deploying the cleaning mechanism.

[0009] By adopting the above technical solutions, the cleaning mechanism can clean the guide groove in a timely manner after the inspection, ensuring smooth movement of the inclinometer probe, reducing wear, improving measurement accuracy, and providing a reliable guarantee for deep soil displacement monitoring of slopes.

[0010] Furthermore, the sensing probe body has a movable slot corresponding to the cleaning mechanism and the driving mechanism, and the swing block is attached to the movable slot after it is unfolded.

[0011] By adopting the above technical solution, the swing block is attached to the movable groove after it is unfolded. This not only standardizes the movement trajectory of the swing block and prevents it from shaking randomly and affecting the operation of the device, but also enhances the overall structural stability, making cleaning and driving operations more reliable and ensuring that the device works stably in complex environments.

[0012] Furthermore, the two ends of the swing block are rotatably connected to the sensing probe body and the transmission plate respectively through rotating shafts. When the swing block is perpendicular to the movable groove, the rotating shaft at the top of the swing block is closer to the middle of the sensing probe body, and a limiting block that is in contact with the swing block is installed at the bottom of the transmission plate.

[0013] By adopting the above technical solution, the top pivot position design makes the swing block rotate more smoothly and efficiently, and the limit block accurately controls the transmission plate to reset, ensuring the consistency and accuracy of each operation of the cleaning mechanism, improving the cleaning effect, and thus improving the reliability of the measurement data.

[0014] Furthermore, the top of the cleaning head is triangular, and the side cross-section of the cleaning head is inverted U-shaped, with the bottom of the cleaning head attached to the top of the transmission plate.

[0015] By adopting the above technical solution, the connection between the cleaning head and the transmission plate is ensured to be stable and easy to replace, thus ensuring that the cleaning work is carried out continuously and efficiently and that the measurement work is carried out smoothly.

[0016] Furthermore, two sets of swing blocks are symmetrically installed in the movable groove, and the thickness of the swing blocks, transmission plates and cleaning heads corresponds to the thickness of the pulleys in the pulley mechanism.

[0017] By adopting the above technical solution, the thickness of each component corresponds to the thickness of the pulley, ensuring that the device structure is compact and that the normal movement of the sensing probe body inside the inclinometer tube is not affected when cleaning the guide groove, thus realizing the coordinated operation of cleaning and measurement functions.

[0018] Furthermore, the drive mechanism includes a toothed ring mounted on the outer wall of the swing block and a toothed plate slidably mounted in the movable groove, with both sets of toothed rings meshing with the toothed plate.

[0019] By adopting the above technical solution, the sliding of the toothed plate is precisely converted into the rotation of the swing block driven by the toothed ring, providing a stable power transmission for the unfolding and retraction of the cleaning mechanism, realizing the automation of the cleaning operation, improving work efficiency, and reducing human operation errors.

[0020] Furthermore, the drive mechanism also includes a miniature electric actuator installed in the movable slot and connected to the toothed plate.

[0021] By adopting the above technical solution, the operation is simple and highly automated, and the cleaning operation can be started in a timely manner to ensure the cleanliness of the guide groove.

[0022] In summary, the present invention has the following main advantages:

[0023] This invention features a cleaning mechanism that, after testing, cleans the guide groove of the inclinometer tube with a cleaning head. This effectively removes impurities such as soil particles and silt, preventing blockage and ensuring smooth movement of the inclinometer probe within the tube. This reduces the risk of probe wear, ensuring that the measurement data accurately reflects soil displacement and improving the precision of deep soil displacement measurements on slopes. The cleaning mechanism also reduces friction and collision between the inclinometer probe and the guide groove, minimizing wear caused by guide groove blockage and extending the lifespan of the inclinometer probe and the entire sensing device. This lowers equipment maintenance and replacement costs. The cleaning head is detachably mounted on the end of the transmission plate; when the cleaning head is severely worn, it can be replaced simply by removing the bolts, making it convenient and quick. This ensures the cleaning mechanism maintains excellent cleaning performance, further guaranteeing the smooth progress of measurement work. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a partial cross-sectional view of the cleaning mechanism of this utility model when it is not in use;

[0026] Figure 3 This is a partial cross-sectional view of the cleaning mechanism of this utility model in use;

[0027] Figure 4 This is a schematic diagram of the structure of the sensing probe body after it has been cut open during use of the cleaning mechanism of this utility model.

[0028] In the figure: 1. Sensing probe body; 2. Pulley mechanism; 3. Swing block; 4. Transmission plate; 5. Limiting block; 6. Cleaning head; 7. Movable groove; 8. Gear ring; 9. Gear plate; 10. Miniature electric actuator. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] This utility model focuses on solving a series of problems caused by the blockage of the guide groove of the inclinometer tube in the practical application of existing inclinometers. It has carefully designed a sensing device for the displacement of deep soil in slopes. Through the coordinated work of various components, the accuracy and reliability of slope monitoring are significantly improved.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] Sensing devices for deep soil displacement on slopes, such as Figure 1 - Figure 4 As shown, the core consists of a sensing probe body 1 and a pulley mechanism 2. The pulley mechanism 2 acts like a "track wheel," rolling along the guide groove of the inclinometer tube, providing stable support and guidance for the sensing probe body 1 to move up and down within the inclinometer tube. This ensures that the sensing probe body 1 can accurately reach different depth positions, enabling effective monitoring of soil displacement at different depths on the slope. The sensing probe body 1 is the "core carrier" of the entire device, integrating a cleaning mechanism and a drive mechanism. It is a key component for realizing the functions of cleaning the guide groove and measuring soil displacement.

[0033] Specifically, the cleaning mechanism mainly includes a swing block 3, a transmission plate 4, a limit block 41, and a cleaning head 5;

[0034] Among them, the swing block 3, as the "power transmission hub" of the cleaning mechanism, is rotatably installed in the sensing probe body 1. It drives the transmission plate 4 connected to it to move through its own rotation. The rotating shafts at both ends are rotatably connected to the sensing probe body 1 and the transmission plate 4 respectively. This connection method allows the swing block 3 to rotate flexibly. In addition, when it is perpendicular to the movable groove 6, the top rotating shaft is closer to the middle of the sensing probe body 1, which optimizes its rotation mechanical structure and makes its rotation more stable and efficient. Under the drive of the swing block 3, the transmission plate 4 is responsible for converting the rotation of the swing block 3 into the movement of the cleaning head 5.

[0035] Meanwhile, the limiting block 41 installed at the bottom of the transmission plate 4 plays an important role when the cleaning mechanism is reset. It is in contact with the swing block 3 and precisely limits the position of the transmission plate 4, ensuring that the cleaning mechanism can return to the accurate position each time it is reset, so as to prepare for the next cleaning work.

[0036] The cleaning head 5 is detachably installed at the end of the transmission plate 4 and directly contacts the guide groove of the inclinometer tube. It is responsible for cleaning the rock and soil particles, mud and sand and other impurities in the guide groove. The triangular design at the top makes it easy to insert into the guide groove, while the inverted U-shaped design of the side section increases the contact area with the top of the transmission plate 4. It is then connected by bolts. This connection method ensures the stability of the connection and makes it easy to replace the cleaning head 5 after it wears out. At the same time, the cleaning head 5 can be made of elastic rubber, which can ensure the cleaning effect on the guide groove and reduce its wear on the guide groove.

[0037] For example, the elastic element provided at the rotatable connection position between the swing block 3 and the transmission plate 4 acts as a buffer and a resetter. When the cleaning head 5 is obstructed from contacting the guide groove, the elastic element can buffer the impact and prevent the parts from being damaged due to excessive force. After cleaning, it can also reset the cleaning head 5 and the transmission plate 4 by its own elasticity, ensuring that the cleaning mechanism can be reused. It should be noted that the elastic element can be a torsion spring or other elastic elements such as a clock spring. This utility model does not completely limit it.

[0038] The drive mechanism in this utility model consists of a toothed ring 7, a toothed plate 8, and a miniature electric actuator 9.

[0039] The toothed ring 7 is installed on the outer wall of the swing block 3 and meshes with the toothed plate 8. When the toothed plate 8 slides in the movable groove 6, the toothed ring 7 will rotate accordingly, thereby driving the swing block 3 to rotate, realizing the unfolding and retraction of the cleaning mechanism. The toothed plate 8 is slidably installed in the movable groove 6, converting the linear motion of the micro electric push rod 9 into the rotation of the toothed ring 7. At the same time, the micro electric push rod 9 is installed in the movable groove 6 and connected to the toothed plate 8. By controlling the extension and retraction of the micro electric push rod 9, the sliding of the toothed plate 8 can be precisely controlled, thereby realizing the automated control of the cleaning mechanism. The operation is simple and convenient, greatly improving the work efficiency. (How the micro electric push rod 9 is controlled can be achieved by wrapping the control line of the electric push rod in a cable and then connecting it to a reading instrument for control. This is a known technology and will not be elaborated on here.)

[0040] In this invention, the movable groove 6 inside the sensing probe body 1 provides dedicated space for components such as the swing block 3 and the toothed plate 8, ensuring that they do not interfere with each other during movement. It also provides certain limiting and protection for these components. Two sets of swing blocks 3 are symmetrically installed in the movable groove 6. This symmetrical design makes the cleaning mechanism more evenly stressed and the cleaning effect more stable during operation. Furthermore, the thickness of the swing block 3, the transmission plate 4, and the cleaning head 5 corresponds to the thickness of the pulley in the pulley mechanism 2, ensuring the compactness of the entire device structure. When cleaning the guide groove, it will not affect the normal movement of the sensing probe body 1 in the inclinometer tube, ensuring that the measurement and cleaning work can be carried out in an orderly manner.

[0041] The working principle of this utility model is as follows: When using this sensing device, the pulley mechanism 2 is slid down along the guide groove of the inclinometer tube, so that the sensing probe body 1 begins to slide down. After sliding to a limited depth, the detection can begin. After the detection is completed, before pulling the sensing probe body 1 up, the micro electric push rod 9 is activated, causing the toothed plate 8 to slide. This will drive the toothed ring 7 to rotate, causing the two sets of swing blocks 3 to rotate 90°. During the rotation of the swing blocks 3, it will drive the transmission plate 4 to rotate synchronously. Before the swing blocks 3 have rotated 90°, the end of the cleaning head 5 will first contact the guide groove. The swing blocks 3 still need to continue to rotate, but the cleaning head 5 has already contacted the guide groove. When the swing blocks 3 continue to rotate, the angle between the cleaning head 5 and the transmission plate 4 and the swing blocks 3 will change. At this time, the elastic element at the connection position between the transmission plate 4 and the swing blocks 3 will be squeezed.

[0042] Next, pull the sensing probe body 1 upward to make it slide upward. At this time, the cleaning head 5 will slide along the guide groove. As the cleaning head 5 slides in the guide groove, it will scrape the inner wall of the guide groove, reducing the probability of blockage. When the sensing probe body 1 is pulled out, the cleaning head 5 will separate from the guide groove. At this time, the cleaning head 5 and the transmission plate 4 will reset under the action of the elastic element, so that the limit block 41 is attached to the end of the swing block 3, ensuring that the transmission plate 4 can be reset smoothly. Finally, the micro electric push rod 9 is activated in the opposite direction to reset the swing block 3.

[0043] When the cleaning head 5 is made of elastic rubber, the pre-tightening force of the elastic element can control the contact pressure between the cleaning head 5 and the guide groove during the sliding process. This can effectively scrape away sludge and reduce friction and vibration. Since the bottom of the cleaning head 5 is made of metal and is connected to the end of the transmission plate 4 by bolts, the bolts can be removed and the cleaning head 5 can be replaced after severe wear.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A sensing device for deep soil displacement on a slope, characterized in that, It includes a sensing probe body (1) and a pulley mechanism (2). The sensing probe body (1) is provided with a cleaning mechanism for cleaning the guide groove of the inclinometer tube. The cleaning mechanism includes a swing block (3) rotatably installed inside the sensing probe body (1), and a transmission plate (4) is rotatably installed at the end of the swing block (3), and an elastic element is provided at the position where the swing block (3) and the transmission plate (4) are rotatably connected; The cleaning mechanism also includes a cleaning head (5) that is detachably mounted on the end of the transmission plate (4), and the cleaning head (5) is located on the same vertical line as the pulley mechanism (2). The sensing probe body (1) is provided with a drive mechanism for unfolding the cleaning mechanism.

2. The slope deep soil displacement sensing device according to claim 1, characterized in that: The sensing probe body (1) has an active slot (6) corresponding to the cleaning mechanism and the driving mechanism, and the swing block (3) is attached to the active slot (6) after it is unfolded.

3. The slope deep soil displacement sensing device according to claim 2, characterized in that: The two ends of the swing block (3) are rotatably connected to the sensing probe body (1) and the transmission plate (4) respectively through the rotating shaft. When the swing block (3) and the movable groove (6) are perpendicular to each other, the rotating shaft at the top of the swing block (3) is closer to the middle of the sensing probe body (1), and the bottom of the transmission plate (4) is equipped with a limiting block (41) that is in contact with the swing block (3).

4. The slope deep soil displacement sensing device according to claim 1, characterized in that: The top of the cleaning head (5) is triangular, and the side section of the cleaning head (5) is inverted U-shaped. The bottom of the cleaning head (5) is attached to the top of the transmission plate (4).

5. The slope deep soil displacement sensing device according to claim 2, characterized in that: Two sets of swing blocks (3) are symmetrically installed in the movable groove (6), and the thickness of the swing blocks (3), transmission plate (4) and cleaning head (5) corresponds to the thickness of the pulley in the pulley mechanism (2).

6. The slope deep soil displacement sensing device according to claim 5, characterized in that: The drive mechanism includes a toothed ring (7) mounted on the outer wall of the swing block (3) and a toothed plate (8) slidably mounted in the movable groove (6). Both sets of toothed rings (7) are meshed with the toothed plate (8).

7. The slope deep soil displacement sensing device according to claim 6, characterized in that: The drive mechanism also includes a miniature electric actuator (9) installed in the movable slot (6) and connected to the toothed plate (8).

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