A ground subsidence monitoring device

Abstract

The utility model discloses a ground subsidence monitoring devices, including the bottom layer of being located in the earth body pre -buried plate, the layered setting of multiple detection board in soil layer, be located between the detection board and pre -buried plate's pull rope and be located at the observation cabinet of ground surface, be equipped with the pulley in the pre -buried plate, the detection board is hollow board, and one end of pull rope is connected on the detection board, and after passing pulley, the other end extends to the observation cabinet, be equipped with the recovery turntable in the observation cabinet, the recovery turntable and display disc, the axis of recovery turntable is connected with the pointer, the pointer is located on the surface of display disc, and the periphery's scale is equipped on display disc, recovery turntable is equipped with pre -tension, and the other end of pull rope is fixed and is wound on recovery turntable, and the pull rope is taut. Only need direct observation can obtain accurate settlement, and the device is all used mechanical structure splicing and is formed, avoids electronic device long -term in the earth body humid environment failure, guarantees the precision of subsidence monitoring.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of settlement monitoring technology, and more specifically, relate to a ground settlement monitoring device. Background Technology

[0002] Ground subsidence is a geological hazard caused by natural or anthropogenic factors, resulting in a slow decrease in regional ground elevation. This subsidence threatens the safety of urban buildings, transportation infrastructure, and underground pipe networks. Therefore, accurate and long-term automated monitoring of ground subsidence is a crucial technical prerequisite for risk assessment, disaster early warning, and engineering safety assurance. Ground subsidence monitoring devices are specialized instruments designed for this purpose, used to acquire vertical displacement data of soil layers at different depths on the surface and underground.

[0003] Among existing monitoring technologies, stratified settlement gauges are a key device widely used to measure the compression and settlement of soil at different underground depths. Their typical operation involves installing a settlement tube in a borehole as a guide and protective structure, with the bottom end of the tube usually anchored to bedrock or deep soil considered a stable benchmark. Subsequently, sensors or measuring anchors are deployed at different depths within the tube. By measuring the vertical positional changes of these points relative to the benchmark, the settlement of each soil layer can be accurately differentiated and measured.

[0004] However, existing stratified settlement gauges present significant challenges during on-site installation. Firstly, the installation is technically complex, requiring precise deployment to a designated depth underground along with the settlement pipe. This typically necessitates on-site guidance from qualified technicians and demands high skill levels from the installation personnel. Secondly, current methods often require sensors and related measuring components to be pre-installed and fixed inside the settlement pipe, increasing the overall installation difficulty. Furthermore, the equipment's cables are located outside the settlement pipe and buried in the soil along with it, increasing the risk of cable damage. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a ground settlement monitoring device. By installing detection plates within multiple layers of soil, and calibrating the initial position after rotating and tightening a return turntable, when soil settlement occurs, the detection plates move downwards, the tension ropes loosen, releasing the return turntable from its restraint. The return turntable rotates under the action of restoring force, thereby driving a pointer to rotate. The settlement data can be read by observing the pointer's indication on the display panel. Accurate settlement measurements can be obtained through direct observation. Furthermore, the device is entirely constructed using mechanical structures, eliminating the use of electronic components and preventing their failure in the moist soil environment over time, thus ensuring the accuracy of settlement monitoring.

[0006] To achieve the above objectives, a ground settlement monitoring device is provided, comprising an embedded plate at the bottom layer of the soil, multiple detection plates arranged in layers in the soil, a pull rope between the detection plates and the embedded plate, and an observation cabinet located on the ground surface. The embedded plate is equipped with a pulley, the detection plate is a hollow plate, one end of the pull rope is connected to the detection plate, and after passing around the pulley, the other end extends into the observation cabinet; The observation cabinet is equipped with a return turntable, a display panel, and a pointer connected to the axis of the return turntable. The pointer is located on the surface of the display panel, and the display panel has circumferential scales. The return turntable is pre-tensioned, and the other end of the pull rope is fixed and wound around the return turntable, and the pull rope is taut.

[0007] Furthermore, the observation cabinet is mounted on a surface platform, which provides support for it. The observation cabinet also includes a cabinet body, which has multiple uprights with gaps between them, and the fixing shaft is fixed to the uprights.

[0008] Furthermore, the fixed shaft includes a solid shaft, a first hollow shaft, and a second hollow shaft, each fixed to a vertical plate; The return turntable includes a first turntable, a second turntable, and a third turntable. The first turntable is fitted onto a solid shaft, the second turntable is fitted onto a first hollow shaft, and the third turntable is fitted onto a second hollow shaft.

[0009] Furthermore, a first rotating shaft is fixed to the rear end of the first turntable. The first rotating shaft is a hollow shaft that is fitted onto a solid shaft and rotates synchronously with the first turntable. The rear end of the second turntable is also fixed with a second rotating shaft, which is a hollow shaft that is sleeved on the first hollow shaft and rotates synchronously with the second turntable; The rear end of the third turntable is also fixed with a third rotating shaft, which is a hollow shaft that is sleeved on the second hollow shaft and rotates synchronously with the third turntable.

[0010] Furthermore, the first, second, and third rotating shafts all pass through the center of the display panel, with the first rotating shaft protruding from the end of the second rotating shaft and the second rotating shaft protruding from the end of the third rotating shaft. Each of the first, second, and third rotating shafts has a pointer at its end.

[0011] Furthermore, the first rotating shaft also extends through the first hollow shaft and rotates within the first hollow shaft; The second rotating shaft also passes through the second hollow shaft and rotates within the second hollow shaft.

[0012] Furthermore, a coil spring is provided between the first turntable and the solid shaft to provide restoring force to the first turntable; A coil spring is provided between the second turntable and the first hollow shaft to provide restoring force to the second turntable; A coil spring is provided between the third turntable and the second hollow shaft to provide restoring force to the third turntable.

[0013] Furthermore, a groove is opened at the center of the top surface of the embedded plate, and pulleys are rotatably connected to the groove through pulley shafts, and multiple pulleys are provided.

[0014] Furthermore, all the detection plates are arranged in the same vertical direction and are connected by corrugated pipes. The bottom detection plate is also connected to the embedded plate, and the top detection plate is connected to the ground platform by corrugated pipes. The ends of the corrugated pipes cover the hollow holes on the detection plates. The pull ropes are placed in the corrugated pipes. The pull ropes on the upper detection plates pass through the hollow holes and corrugated pipes of the lower detection plates, go around to the pulley, and then pass upward through the hollow holes and corrugated pipes of all the detection plates to the return turntable.

[0015] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects: 1. This utility model discloses a ground settlement monitoring device. It involves setting a detection plate within multiple layers of soil. After rotating and tightening a return turntable, the initial position is calibrated. When soil settlement occurs, the detection plate moves downwards, the tension rope loosens, releasing the return turntable from its restraint. The return turntable rotates under the action of the restoring force, thereby driving a pointer to rotate. The settlement data can be read by observing the pointer's indication on the display panel. Accurate settlement can be obtained through direct observation. Furthermore, the device is entirely constructed using mechanical structures, without electronic components, thus avoiding the failure of electronic components in the moist soil environment over long periods and ensuring the accuracy of settlement monitoring.

[0016] 2. In the ground settlement monitoring device of this utility model, the pull rope on each detection plate is wound around a different pulley. The pulley changes the direction of force on the pull rope. When the soil at the corresponding detection plate settles, the pull rope loosens and is automatically tightened under the action of the return turntable. The return turntable rotates on its own, and multiple pulleys rotate independently, so that they do not affect each other and ensure the accuracy of monitoring.

[0017] 3. In the ground settlement monitoring device of this utility model, the first turntable, the second turntable and the third turntable are all coaxially arranged so that the rotating shafts connected to their ends are all in the same axis. This allows the monitoring of settlement of different soil layers to be completed using the corresponding pointers on the same display panel, simplifying the steps of settlement data acquisition and making the data display more intuitive.

[0018] 4. The ground settlement monitoring device of this utility model, because the soil structure is stable in the deep soil layers, has negligible settlement. Using the deep embedded plate as the monitoring benchmark avoids errors caused by using the ground surface as the benchmark. Furthermore, since settlement in the middle soil layers will cause corresponding settlement on the ground surface, affecting the monitoring of surface settlement data, accurate surface monitoring data can be obtained simply by using the bottom layer settlement data for correction.

[0019] 5. In the ground settlement monitoring device of this utility model, the pull rope is placed in a corrugated pipe and isolated from the soil, so as to avoid damage to the pull rope when the soil settles, and to prevent it from being exposed to the soil for a long time and coming into contact with acidic substances, thus avoiding rust and rot. This improves the service life of the device and ensures that the device can continuously monitor. Attached Figure Description

[0020] Figure 1 This is a front view of the structure of a ground settlement monitoring device according to an embodiment of the present invention; Figure 2 This is a left view of the structure of a ground settlement monitoring device according to an embodiment of the present invention; Figure 3 This is an embodiment of the present utility model. Figure 2 An enlarged schematic diagram of part a; Figure 4 This is an embodiment of the present utility model. Figure 2 An enlarged schematic diagram of part b in the middle; Figure 5 This is a schematic diagram of the observation cabinet structure of a ground settlement monitoring device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the observation cabinet of a ground settlement monitoring device according to an embodiment of the present invention; Figure 7 This is a cross-sectional view of the internal structure of the observation cabinet of a ground settlement monitoring device according to an embodiment of this utility model; Figure 8 This is a cross-sectional view of the recovery turntable structure of a ground settlement monitoring device according to an embodiment of the present invention.

[0021] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-embedded plate, 2-detection plate, 3-corrugated pipe, 4-pulley, 5-pull rope, 6-surface platform, 7-observation cabinet, 71-cabinet body, 72-standing plate, 73-return turntable, 731-first turntable, 732-second turntable, 733-third turntable, 734-first rotating shaft, 735-second rotating shaft, 736-third rotating shaft, 74-fixed shaft, 741-solid shaft, 742-first hollow shaft, 743-second hollow shaft, 75-display panel, 76-pointer. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figure 1-4 As shown, this utility model embodiment provides a ground settlement monitoring device, including a pre-embedded plate 1 at the bottom of the soil, multiple detection plates 2 arranged in layers in the soil, a pull rope 5 between the detection plates 2 and the pre-embedded plate 1, and an observation cabinet 7 located on the ground surface. The pre-embedded plate 1 has a pulley 4. The detection plates 2 are hollow plates. One end of the pull rope 5 is connected to the detection plate 2, passes over the pulley 4, and the other end extends into the observation cabinet 7. The observation cabinet 7 has a return turntable 73 and a display panel 75. A pointer 76 is connected to the axis of the return turntable 73 and is located on the surface of the display panel 75, which has circumferential graduations. The return turntable 73 is pre-tensioned, and the other end of the pull rope 5 is fixed and wound around the return turntable 73, and the pull rope 5 is taut. By setting up detection plates 2 in multiple layers of soil, and calibrating the initial position after rotating and tightening the return turntable 73, when soil settlement occurs, the detection plates 2 move downwards, the pull rope 5 loosens, releasing the limit on the return turntable 73. The return turntable 73 rotates under the action of the restoring force, thereby driving the pointer 76 to rotate. The settlement data can be read by the indication of the pointer 76 on the display panel 75. Accurate settlement can be obtained by direct observation, and the device is entirely assembled using mechanical structures without electronic components, avoiding the failure of electronic components in the long-term moist soil environment, thus ensuring the accuracy of settlement monitoring.

[0024] The top surface of the embedded plate 1 has a groove at its center, and the pulley 4 is rotatably connected to the groove through the pulley shaft, and there are multiple pulleys 4.

[0025] Understandably, the pull rope 5 on each detection plate 2 is wound around different pulleys 4. The pulleys 4 change the direction of force on the pull rope 5. When the soil at the corresponding detection plate 2 settles, the pull rope 5 slackens and is automatically tightened under the action of the return turntable 73. The return turntable 73 rotates on its own, and the multiple pulleys 4 rotate independently, so that they do not affect each other and ensure the accuracy of monitoring.

[0026] like Figure 5-8As shown, the observation cabinet 7 is mounted on a ground platform 6, which provides support for it. The observation cabinet 7 also includes a cabinet body 71, which contains multiple uprights 72 with gaps between them. A fixing shaft 74 is fixed to each upright 72. The fixing shaft 74 includes a solid shaft 741, a first hollow shaft 742, and a second hollow shaft 743, each fixed to an upright 72. The return turntable 73 includes a first turntable 731, a second turntable 732, and a third turntable 733. The first turntable 731 is fitted onto the solid shaft 741, the second turntable 732 is fitted onto the first hollow shaft 742, and the third turntable 733 is fitted onto the second hollow shaft 743. Furthermore, a first rotating shaft 734 is fixed to the rear end of the first turntable 731. The first rotating shaft 734 is a hollow shaft, which is sleeved on a solid shaft 741 and rotates synchronously with the first turntable 731. A second rotating shaft 735 is fixed to the rear end of the second turntable 732. The second rotating shaft 735 is a hollow shaft, which is sleeved on the first hollow shaft 742 and rotates synchronously with the second turntable 732. A third rotating shaft 736 is fixed to the rear end of the third turntable 733. The third rotating shaft 736 is a hollow shaft, which is sleeved on the second hollow shaft 743 and rotates synchronously with the third turntable 733.

[0027] The first rotating shaft 734, the second rotating shaft 735, and the third rotating shaft 736 all pass through the center of the display disk 75, and the first rotating shaft 734 protrudes from the end of the second rotating shaft 735, the second rotating shaft 735 protrudes from the end of the third rotating shaft 736, and each of the first rotating shaft 734, the second rotating shaft 735, and the third rotating shaft 736 is provided with a pointer 76.

[0028] The first rotating shaft 734 is also disposed through the first hollow shaft 742 and rotates in the first hollow shaft 742; the second rotating shaft 735 is also disposed through the second hollow shaft 743 and rotates in the second hollow shaft 743.

[0029] The cabinet 71 is located on the ground platform 6, and the upright plate 72, the return turntable 73 and the fixed shaft 74 are all located inside it to protect the internal structure.

[0030] A coil spring is provided between the first turntable 731 and the solid shaft 741 to provide a restoring force to the first turntable 731; a coil spring is provided between the second turntable 732 and the first hollow shaft 742 to provide a restoring force to the second turntable 732; a coil spring is provided between the third turntable 733 and the second hollow shaft 743 to provide a restoring force to the third turntable 733.

[0031] It is understandable that the first turntable 731, the second turntable 732 and the third turntable 733 are all coaxially arranged so that the rotating shafts connected to their ends are all in the same axial direction. This allows the monitoring of settlement of different soil layers to be completed using the corresponding pointer 76 on the same display panel 75, simplifying the steps of settlement data acquisition and making the data display more intuitive.

[0032] As a further preferred embodiment, the center of the upright plate 72, at the connection position between the first rotating shaft 734 and the end of the second rotating shaft 735, is provided with a through hole of the same size as its inner hole.

[0033] It is understandable that the first hollow shaft 742 and the second hollow shaft 743 are both hollow shafts, and their ends are fixed to the vertical plate 72 so that the corresponding first rotating shaft 734 and the second rotating shaft 735 pass through to the display panel 75, so as to avoid mutual interference when rotating and improve the anti-interference ability of settlement monitoring.

[0034] The detection plates 2 are all located in the same vertical direction and are connected by corrugated pipes 3. The bottom detection plate 2 and the pre-embedded plate 1, as well as the top detection plate 2 and the ground platform 6, are also connected by corrugated pipes 3. The ends of the corrugated pipes 3 cover the hollow holes on the detection plates 2. The pull rope 5 is located in the corrugated pipe 3. The pull rope 5 on the upper detection plate 2 passes through the hollow holes of the lower detection plate 2 and the corrugated pipe 3, winds around to the pulley 4, and then passes upward through the hollow holes of all the detection plates 2 and the corrugated pipe 3 to the return turntable 73.

[0035] Understandably, since the soil structure is stable in the deep layers, its settlement is negligible. Using the deep embedded plate 1 as the monitoring benchmark can avoid errors caused by using the ground surface as the benchmark. In addition, since the settlement of the middle layer soil will cause corresponding settlement of the ground surface, thus affecting the monitoring of surface settlement data, accurate surface monitoring data can be obtained by simply correcting with the bottom layer settlement data.

[0036] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ground settlement monitoring device, characterized in that, It includes a pre-embedded plate (1) at the bottom of the soil, multiple detection plates (2) arranged in layers in the soil, a pull rope (5) between the detection plate (2) and the pre-embedded plate (1), and an observation cabinet (7) on the ground surface. The embedded plate (1) is provided with a pulley (4), the detection plate (2) is a hollow plate, one end of the pull rope (5) is connected to the detection plate (2), and after passing around the pulley (4), the other end extends into the observation cabinet (7); The observation cabinet (7) is equipped with a return turntable (73), a fixed shaft (74) and a display panel (75). A pointer (76) is connected to the axis of the return turntable (73). The pointer (76) is located on the surface of the display panel (75). The display panel (75) is equipped with circumferential scales. The return turntable (73) is provided with pre-tension, and the other end of the pull rope (5) is fixed and wrapped around the return turntable (73), and the pull rope (5) is tightened.

2. The ground subsidence monitoring device according to claim 1, characterized in that, The observation cabinet (7) is located on the surface platform (6) and is supported by the surface platform (6); The observation cabinet (7) also includes a cabinet body (71), in which multiple uprights (72) are provided, with gaps reserved between the multiple uprights (72), and the fixing shaft (74) is fixed on the uprights (72).

3. The ground subsidence monitoring device according to claim 2, characterized in that, The fixed shaft (74) includes a solid shaft (741), a first hollow shaft (742) and a second hollow shaft (743), which are respectively fixed on a vertical plate (72); The return turntable (73) includes a first turntable (731), a second turntable (732) and a third turntable (733). The first turntable (731) is fitted onto a solid shaft (741), the second turntable (732) is fitted onto a first hollow shaft (742), and the third turntable (733) is fitted onto a second hollow shaft (743).

4. A ground subsidence monitoring device according to claim 3, characterized in that, The rear end of the first turntable (731) is also fixed with a first rotating shaft (734), which is a hollow shaft that is sleeved on a solid shaft (741) and rotates synchronously with the first turntable (731). The rear end of the second turntable (732) is also fixed with a second rotating shaft (735), which is a hollow shaft that is sleeved on the first hollow shaft (742) and rotates synchronously with the second turntable (732); The rear end of the third turntable (733) is also fixed with a third rotating shaft (736), which is a hollow shaft that is sleeved on the second hollow shaft (743) and rotates synchronously with the third turntable (733).

5. A ground subsidence monitoring device according to claim 4, characterized in that, The first rotating shaft (734), the second rotating shaft (735) and the third rotating shaft (736) all pass through the center of the display disk (75), and the first rotating shaft (734) protrudes from the end of the second rotating shaft (735), the second rotating shaft (735) protrudes from the end of the third rotating shaft (736), and each of the first rotating shaft (734), the second rotating shaft (735) and the third rotating shaft (736) is provided with a pointer (76).

6. A ground subsidence monitoring device according to claim 5, characterized in that, The first rotating shaft (734) is also disposed through the first hollow shaft (742) and rotates within the first hollow shaft (742); The second pivot (735) is also disposed through the second hollow shaft (743) and rotates in the second hollow shaft (743).

7. A ground subsidence monitoring device according to claim 6, characterized in that, A coil spring is provided between the first turntable (731) and the solid shaft (741) to provide restoring force to the first turntable (731); A coil spring is provided between the second turntable (732) and the first hollow shaft (742) to provide restoring force to the second turntable (732); A coil spring is provided between the third turntable (733) and the second hollow shaft (743) to provide restoring force to the third turntable (733).

8. A ground settlement monitoring device according to any one of claims 1-7, characterized in that, The pre-embedded plate (1) has a groove at the center of its top surface, and the pulley (4) is rotatably connected to the groove through the pulley shaft, and there are multiple pulleys (4).

9. A ground settlement monitoring device according to any one of claims 1-7, characterized in that, The detection plates (2) are all located in the same vertical direction and are connected by corrugated pipes (3). The bottom detection plate (2) and the embedded plate (1) are connected by corrugated pipes (3), and the top detection plate (2) and the ground platform (6) are also connected by corrugated pipes (3). The ends of the corrugated pipes (3) wrap around the hollow holes on the detection plates (2). The pull ropes (5) are located in the corrugated pipes (3). The pull ropes (5) on the upper detection plate (2) pass through the hollow holes of the lower detection plate (2) and the corrugated pipes (3) to the pulley (4), and then pass upward through the hollow holes of all the detection plates (2) and the corrugated pipes (3) to the return turntable (73).

Images