A device for monitoring a slope

Abstract

The utility model discloses a kind of side slope monitoring devices, including the detection mechanism of being installed to the side of side slope main body several, for connecting detection mechanism's steel wire rope, detection mechanism includes with the outer tube of steel wire rope connection, the detection rod of being movably connected in outer tube inside, and for connecting the first spring of outer tube and detection rod, first spring is located at the end of detection rod, the end of outer tube is welded with the connecting ear of steel wire rope connection, the end of steel wire rope is provided with steel wire rope installation mechanism, first end is equipped with steel wire rope stabilizing block. The utility model is by adopting pure mechanical structure, without any external power supply or signal line, it can still continue stable operation under power failure, lightning, rainstorm and other extreme environment, ensure monitoring uninterrupted, when displacement occurs on slope surface, first spring directly, synchronously converts displacement into the linear sliding of detection rod in outer tube, immediate mechanical reading can be realized through transparent scale observation board, without additional sensor or data acquisition equipment.

Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of slope deformation monitoring technology, and more specifically, to a slope monitoring device. Background Technology

[0002] A slope is a slope with a certain gradient built on both sides of a roadbed to ensure its stability. In recent years, the number of slope disasters has been increasing. During the rainy season, slope disasters are particularly serious, which puts forward higher requirements and greater demands on slope safety. Therefore, it is necessary to monitor slopes.

[0003] Existing technologies generally rely on power-driven point sensors or fiber optic networks. In the event of a power outage, lightning strike, or torrential rain, the power lines and signal cables are easily severed, paralyzing the entire monitoring system and making continuous monitoring impossible. Therefore, a slope monitoring device that does not require a power supply is designed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a slope monitoring device that solves the problems of unstable monitoring and limited use of power-driven monitoring devices.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a slope monitoring device, including several detection mechanisms installed on one side of the main body of the slope and steel wire ropes for connecting the detection mechanisms. Each detection mechanism includes an outer cylinder connected to the steel wire rope, a detection rod movably connected inside the outer cylinder, and a first spring for connecting the outer cylinder and the detection rod. The surface of the detection rod has a scale, and the first spring is located at the end of the detection rod. The end of the outer cylinder is welded with a connecting lug for connecting to the steel wire rope. The end of the steel wire rope is provided with a steel wire rope installation mechanism, and the beginning of the steel wire rope is equipped with a steel wire rope stabilizing block.

[0007] Preferably, the detection mechanism is equidistantly arranged along the slope surface of the main body of the slope, and the front end of the detection rod is an abutment end with a conical design, which abuts against the slope surface of the main body of the slope.

[0008] Preferably, the outer cylinder has a first movable groove inside for the movement of the detection rod, a slider is fixed on one side of the detection rod, and a protrusion adapted to the slider is fixed on the inner wall of the first movable groove.

[0009] Preferably, the first spring is disposed at the end of the detection rod, and connecting plates are fixed at both ends of the first spring. A guide rod is disposed between the two connecting plates, and the guide rod is located inside the first spring.

[0010] Preferably, the guide rod consists of a large-diameter outer rod and a small-diameter telescopic rod. The outer rod is sleeved on the outside of the telescopic rod, the end of the outer rod is screwed to the connecting plate, the front end of the telescopic rod is screwed to the connecting plate, and a second spring is provided between the tail end of the telescopic rod and the outer rod.

[0011] Preferably, a limiting rod is threaded on one side of the outer cylinder, the limiting rod passes through the outer cylinder, and its end abuts against the detection rod. A scale observation plate made of transparent material is embedded on the upper surface near the front end of the outer cylinder.

[0012] Preferably, the wire rope installation mechanism includes a fixing plate disposed on the bottom surface of the slope body, a connecting block for connecting the wire rope, and an adjusting component disposed between the connecting block and the fixing plate. The fixing plate is installed on the bottom surface of the slope body by bolts.

[0013] Preferably, the adjusting component includes a sleeve, a screw threaded to the sleeve, and a fixing rod rotatably connected to the sleeve. The fixing rod is bolted to the fixing plate, and a pin is connected between the top of the screw and the connecting block.

[0014] Preferably, the adjusting member has side plates on both sides, the ends of the side plates are connected to the connecting block and the fixing plate respectively, the end of the wire rope is inserted into the connecting block and fixedly connected thereto, and a wire rope fixing nail is provided between the wire rope and the connecting block.

[0015] Preferably, the wire rope stabilizing block is disposed on the top of the slope body, and the wire rope stabilizing block is fixedly connected to the first end of the wire rope.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention employs a purely mechanical structure, requiring no external power supply or signal lines. It can continue to operate stably even in extreme environments such as power outages, lightning strikes, and heavy rain, ensuring uninterrupted monitoring. When displacement occurs on the slope, the first spring directly and synchronously converts the displacement into linear sliding of the detection rod within the outer cylinder. Instant mechanical readings can be obtained through a transparent scale observation plate, eliminating the need for additional sensors or data acquisition equipment.

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0022] Figure 2 This is a schematic diagram of the structure of the testing mechanism of this utility model;

[0023] Figure 3 This is a disassembly diagram of the testing mechanism of this utility model;

[0024] Figure 4 This is an enlarged structural diagram of part A of the disassembly structure of the testing mechanism of this utility model;

[0025] Figure 5 This is a cross-sectional structural diagram of the testing mechanism of this utility model;

[0026] Figure 6 This is a structural schematic diagram of the wire rope installation mechanism of this utility model;

[0027] Figure 7 This is a cross-sectional structural schematic diagram of the wire rope installation mechanism of this utility model;

[0028] Figure 8 This is a schematic diagram of the planar structure of this utility model;

[0029] In the diagram: 1. Main body of the slope; 2. Detection mechanism; 21. Outer cylinder; 22. Detection rod; 23. Abutment end; 24. First spring; 25. Connecting plate; 26. Guide rod; 261. Outer rod; 262. Telescopic rod; 263. Second spring; 27. Connecting ear; 28. Slider; 29. ​​Protrusion; 210. First movable groove; 211. Limiting rod; 212. Scale observation plate; 3. Steel wire rope; 4. Steel wire rope installation mechanism; 41. Fixing plate; 42. Sleeve; 43. Fixing rod; 44. Screw; 45. Connecting block; 46. Side plate; 47. Second movable groove; 48. Pin; 49. Steel wire rope fixing nail; 5. Steel wire rope stabilizing block. Detailed Implementation

[0030] like Figure 1-8 As shown, this utility model provides a slope monitoring device, including a plurality of detection mechanisms 2 installed on one side of the slope body 1, and a steel wire rope 3 for connecting the detection mechanisms 2. The detection mechanism 2 includes an outer cylinder 21 connected to the steel wire rope 3, a detection rod 22 movably connected inside the outer cylinder 21, and a first spring 24 for connecting the outer cylinder 21 and the detection rod 22. The first spring 24 is located at the end of the detection rod 22. The end of the outer cylinder 21 is welded with a connecting ear 27 connected to the steel wire rope 3. The end of the steel wire rope 3 is provided with a steel wire rope installation mechanism 4, and the beginning of the steel wire rope is provided with a steel wire rope stabilizing block 5.

[0031] Furthermore, in this embodiment, the detection mechanism 2 is equidistantly arranged along the slope surface of the main body of the slope 1. The detection mechanism 2 is equidistantly arranged on a single steel wire rope 3. Multiple detection mechanisms 2 are connected in series to form a network through a single steel wire rope 3, forming a continuous monitoring array. This greatly reduces the number of installation nodes and the amount of materials used, significantly reducing the difficulty of deployment and maintenance costs. The front end of the detection rod 22 is the abutment end 23, which is tapered and abuts against the slope surface of the main body of the slope 1. The abutment end 23 of the detection rod 22 is in contact with the slope surface of the main body of the slope 1, so that when the slope surface deforms, the detection rod 22 will be pushed by the slope surface.

[0032] In this embodiment, the outer cylinder 21 has a first movable groove 210 for the detection rod 22 to move inside. A slider 28 is fixed on one side of the detection rod 22. A protrusion 29 adapted to the slider 28 is fixed on the inner wall of the first movable groove 210. The detection rod 22 can slide stably in the outer cylinder 21 by the cooperation of the slider 28 and the protrusion 29.

[0033] In this embodiment, the first spring 24 is disposed at the end of the detection rod 22. Both ends of the first spring 24 are fixed with connecting plates 25. A guide rod 26 is disposed between the two connecting plates 25. The guide rod 26 is located inside the first spring 24. The first spring 24 is connected to the detection rod 22 and the outer cylinder 21 through the connecting plates 25. The connecting plates 25 are screwed to both. Under the elastic action of the first spring 24, the detection rod 22 will move out of the outer cylinder 21 and contact the slope surface.

[0034] It should be noted that the connecting plate 25 can be made of damping material to prevent the first spring 24 from continuously jumping when small deformations occur on the slope, thus stabilizing the first spring 24. The second spring 263 is restricted by the external first spring 24, and thus can also be stabilized.

[0035] In this embodiment, the guide rod 26 consists of a large-diameter outer rod 261 and a small-diameter telescopic rod 262. The outer rod 261 is sleeved on the outside of the telescopic rod 262. The end of the outer rod 261 is screwed to the connecting plate 25, and the front end of the telescopic rod 262 is screwed to the connecting plate 25. The sliding fit between the outer rod 261 and the telescopic rod 262 prevents the elastic deformation of the first spring 24 and improves stability. A second spring 263 is provided between the tail end of the telescopic rod 262 and the outer rod 261. The second spring 263 provides assistance to prevent the elastic failure of the first spring 24, which would render the entire detection structure unusable. It temporarily provides elasticity. The second spring has a stiffness less than that of the first spring and is in a pre-compressed state.

[0036] It should be noted that, to ensure that the second spring 263 can still independently push the detection rod 22 and maintain the same range even if the first spring 24 fails, the two springs can be configured with the following parameters for reference: the first spring 24 is a compression spring with a wire diameter of 1.2 mm, a mean diameter of 15 mm, and a free length of 60 mm, with a stiffness k1≈3.2 N / mm; the second spring 263 is a compression spring with a wire diameter of 0.9 mm, a mean diameter of 10 mm, and a free length of 30 mm, with a stiffness k2≈1.8 N / mm. During assembly, the first spring 24 is pre-compressed by 5 mm, providing an initial thrust of approximately 16 N; the second spring 263 is pre-compressed by 2 mm in the initial state, storing approximately 3.6 N of thrust. When the slope displacement is ≤8 mm, only the first spring 24 works. If the first spring 24 breaks or fails due to fatigue, the second spring 263 continues to provide thrust, allowing the detection rod 22 to still extend by 8 mm. The entire range is measured in mm, and the linear relationship between the scale change and the displacement is maintained with an error of ≤ ±5%. The stiffness ratio k2 / k1≈0.56 and the preload can be verified by a conventional spring force measuring test bench. Technicians can scale the measurement according to this ratio to meet different range requirements.

[0037] In this embodiment, a limiting rod 211 is threaded on one side of the outer cylinder 21. The limiting rod 211 passes through the outer cylinder 21 and its end abuts against the detection rod 22. The abutting end 23 of the limiting rod 211 and the detection rod 22 is wrapped with rubber. The magnitude of the abutting force between the limiting rod 211 and the detection rod 22 can be adjusted by rotation to prevent the detection rod 22 from shifting. A transparent scale observation plate 212 is embedded on the upper surface near the front end of the outer cylinder 21. Scales are engraved on the upper surface of the detection rod 22. The scale value of the detection rod 22 can be observed through the transparent scale observation plate 212.

[0038] In this embodiment, the wire rope installation mechanism 4 includes a fixing plate 41 disposed on the bottom surface of the slope body 1, a connecting block 45 for connecting the wire rope 3, and an adjusting member disposed between the connecting block 45 and the fixing plate 41. The fixing plate 41 is installed on the bottom surface of the slope body 1 by bolts.

[0039] In this embodiment, the adjusting component includes a sleeve 42, a screw 44 threaded to the sleeve 42, and a fixing rod 43 rotatably connected to the sleeve 42. The fixing rod 43 is bolted to the fixing plate 41. A pin 48 is connected between the top of the screw 44 and the connecting block 45. The extension length of the screw 44 is controlled by manually rotating the sleeve 42. At the same time, the sleeve 42 rotates outside the fixing rod 43. The bottom end of the fixing rod 43 is mounted on the fixing plate 41. The screw 44 is connected to the connecting block 45 through the pin 48.

[0040] In this embodiment, side plates 46 are provided on both sides of the adjusting member. The ends of the side plates 46 are connected to the connecting block 45 and the fixing plate 41 respectively. After the sleeve 42 is adjusted, the position of the screw 44 is fixed by the side plates 46. The end of the wire rope 3 is inserted into the connecting block 45 and fixedly connected to it. A wire rope fixing nail 49 is provided between the wire rope 3 and the connecting block 45 to strengthen the connection between the wire rope 3 and the connecting block 45.

[0041] In this embodiment, the wire rope stabilizing block 5 is set on the top of the slope body 1. The wire rope stabilizing block 5 is fixedly connected to the first end of the wire rope 3. The wire rope stabilizing block 5 is installed on the top of the slope body 1 by bolts to fix the first end of the wire rope 3.

[0042] Specifically, when monitoring the slope, the first spring 24 pushes the detection rod 22 out of the outer cylinder 21, so that the conical abutment end 23 is in close contact with the slope surface. The scale at this moment is recorded through the transparent observation plate as the original position reference of the slope surface. Then, the remaining detection points are arranged at the same interval, so that each detection rod 22 on the same steel wire rope 3 is in contact with the slope surface under the action of the spring, ensuring that the detection rod 22 on each steel wire rope 3 completes the spring preload and initial scale recording, forming a slope displacement monitoring network. The sleeve 42 is rotated to adjust the length of the screw 44, so that the steel wire rope 3 is kept at a medium tension (hand pressure ≤1cm) to avoid spring preload failure (insufficient tension will cause the detection rod 22 to make a loose contact with the slope surface, and the initial scale will be distorted). The initial scale is read one by one.

[0043] Return to each detection point at regular intervals, and read the scale again while the spring is still pushing. Subtract the initial value from the current value to obtain the slope displacement at that point. At the same time, compare the displacement differences between adjacent detection points. If multiple points change synchronously or the differences exceed the limit, it can be determined that there is local or overall slippage.

[0044] If the scale jumps repeatedly (e.g., the difference between each reading is ≥0.5mm), check if the damping material of the connecting plate 25 is aged (the damping plate can absorb the micro-vibration of the spring and avoid the small vibration of the slope causing the rod to repeatedly extend and retract, affecting the stability of the reading). When the displacement continues to increase, loosen the limit rod 2111 1 / 4 turns counterclockwise to release the extra extension and retraction of the spring (e.g., allow the rod to extend from 5mm to 8mm) to prevent the displacement data from being truncated due to the limit being too tight (i.e., the actual slope has moved, but the scale is stuck by the limit rod 211 and cannot display the true value).

[0045] The entire monitoring process relies on the spring to continuously push the detection rod 22 to extend and retract as the slope moves. The accuracy of slope displacement measurement is improved by superimposing and verifying the changes at multiple points. In addition, the actual displacement of 5% of the detection points needs to be measured monthly using a total station and compared with the spring scale reading. If the error is ≥10%, the spring at that point is replaced and the initial scale is recalibrated (spring fatigue will cause the elastic coefficient to decrease, and the scale change will be greater than the actual displacement, so the system error needs to be corrected through multi-point calibration).

[0046] It should be noted that the initial preload of the detection rod 22 is actively applied by the first spring 24 (supplemented by the second spring 263). The conical abutment end 23 is always pressed against the slope. Even if the slope only retracts by 0.1 mm, the spring will immediately push the rod outward to follow until the conical end contacts the soil and rock again. Therefore, there will be no situation where the force is insufficient to push it. On the contrary, it is necessary to ensure that the spring thrust is not too large, which would cause the slope to be artificially loaded and affect the actual displacement. The initial thrust needs to be well controlled during the design to ensure that there is no disturbance to the slope.

[0047] The detection rod 22, spring, connecting ear 27, scale observation plate 212, wire rope 3, screw 44, pin 48 and other components of this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0048] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A slope monitoring device, comprising a plurality of detection mechanisms (2) installed on one side of a slope body (1), and steel wire ropes (3) for connecting the detection mechanisms (2), characterized in that, The detection mechanism (2) includes an outer cylinder (21) connected to the wire rope (3), a detection rod (22) movably connected inside the outer cylinder (21), and a first spring (24) for connecting the outer cylinder (21) and the detection rod (22). The surface of the detection rod (22) has a scale. The first spring (24) is located at the end of the detection rod (22). The end of the outer cylinder (21) is welded with a connecting ear (27) connected to the wire rope (3). The end of the wire rope (3) is provided with a wire rope installation mechanism (4), and the beginning of the wire rope is provided with a wire rope stabilizing block (5).

2. The slope monitoring device according to claim 1, characterized in that, The detection mechanism (2) is set at equal intervals along the slope surface of the main body of the slope (1). The front end of the detection rod (22) is the abutment end (23), which is tapered and abuts against the slope surface of the main body of the slope (1).

3. The slope monitoring device according to claim 2, characterized in that, The outer cylinder (21) has a first movable groove (210) for the movement of the detection rod (22). A slider (28) is fixed on one side of the detection rod (22). A protrusion (29) adapted to the slider (28) is fixed on the inner wall of the first movable groove (210).

4. A slope monitoring device according to claim 3, characterized in that, The first spring (24) is located at the end of the detection rod (22). Both ends of the first spring (24) are fixed with connecting plates (25). A guide rod (26) is provided between the two connecting plates (25). The guide rod (26) is located inside the first spring (24).

5. A slope monitoring device according to claim 4, characterized in that, The guide rod (26) consists of a large-diameter outer rod (261) and a small-diameter telescopic rod (262). The outer rod (261) is sleeved on the outside of the telescopic rod (262). The end of the outer rod (261) is screwed to the connecting plate (25). The front end of the telescopic rod (262) is screwed to the connecting plate (25). A second spring (263) is provided between the tail end of the telescopic rod (262) and the outer rod (261).

6. A slope monitoring device according to claim 5, characterized in that, One side of the outer cylinder (21) is threaded with a limiting rod (211), which passes through the outer cylinder (21) and its end abuts against the detection rod (22). A scale observation plate (212) made of transparent material is embedded on the upper surface near the front end of the outer cylinder (21).

7. A slope monitoring device according to claim 6, characterized in that, The wire rope installation mechanism (4) includes a fixing plate (41) disposed on the bottom surface of the slope body (1), a connecting block (45) for connecting the wire rope (3), and an adjusting member disposed between the connecting block (45) and the fixing plate (41). The fixing plate (41) is installed on the bottom surface of the slope body (1) by bolts.

8. A slope monitoring device according to claim 7, characterized in that, The adjusting component includes a sleeve (42), a screw (44) threaded to the sleeve (42), and a fixing rod (43) rotatably connected to the sleeve (42). The fixing rod (43) is bolted to the fixing plate (41), and a pin (48) is connected between the top of the screw (44) and the connecting block (45).

9. A slope monitoring device according to claim 8, characterized in that, Side plates (46) are provided on both sides of the adjusting member. The ends of the side plates (46) are connected to the connecting block (45) and the fixing plate (41) respectively. The end of the wire rope (3) is inserted into the connecting block (45) and fixedly connected to it. A wire rope fixing nail (49) is provided between the wire rope (3) and the connecting block (45).

10. A slope monitoring device according to claim 9, characterized in that, The wire rope stabilizing block (5) is set on the top of the slope body (1), and the wire rope stabilizing block (5) is fixedly connected to the first end of the wire rope (3).

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