A surface subsidence monitoring device

Abstract

This utility model discloses a land subsidence monitoring device, including a detection cylinder, a fixing plate, and a fixing screw. The detection cylinder has fixing plates fixed to both sides of its bottom end, and the fixing plates are threadedly connected to the fixing screws. A threaded head is fixed to the top of each fixing screw, and a fixing plug is fixed to the bottom of each fixing screw. A fixing sleeve is fitted onto the outside of the detection cylinder, and support components are provided on both sides of the fixing sleeve. A guide block is provided at the top of the inside of the detection cylinder. When the subsidence cone is inserted into the detection area, and the surface subsides, the subsidence cone and subsidence rod move downwards. This causes the toothed block on the outside of the subsidence rod to mesh with the power gear, thereby causing the power gear, shaft, and sleeve to rotate. This causes the display pointer to rotate synchronously, indicating different scale bars in the indicator ring. This allows personnel to observe the position of the display pointer to preliminarily detect the land subsidence situation.

Description

Technical Field

[0001] This utility model relates to the field of land subsidence monitoring technology, and in particular to a land subsidence monitoring device. Background Technology

[0002] Land subsidence, also known as ground settlement, refers to the subsidence phenomenon caused by the deformation of underground soil layers. This phenomenon is usually caused by a variety of reasons such as coal mining and geological activities. Land subsidence not only affects the stability of land and buildings, but may also have a serious impact on underground facilities. Therefore, land subsidence monitoring has become a crucial land engineering technology to timely and accurately grasp the subsidence situation in order to prevent and solve related problems.

[0003] The disclosed deep surface displacement monitoring device relates to the fields of geological disaster, slope, construction industry, coal mining, and construction safety monitoring technology. It includes at least one pipe body, at least one sensor, and at least one universal joint connector. The pipe body has a slot at its end, and the sensor has a protrusion that mates with the slot. The sensor is located inside the pipe body, and the pipe body has a first connecting part. The universal joint connector has a second connecting part, which connects to the first connecting part, allowing adjacent pipe bodies to be connected. In this solution, the universal joint connector and pipe body allow the sensor to be oriented independently of the inclinometer guide groove, thus avoiding the situation in existing technologies where the inclinometer tube is deformed or sheared by the lateral thrust of the borehole wall and the soil layer, preventing the sensor from reaching the measurement point and causing monitoring interruption. The device has a simple structure and low cost.

[0004] The aforementioned existing technology directly uses the tube body and its internal sensors to detect position changes. However, in actual use, the lack of external support makes the tube body and internal sensors susceptible to external environmental influences and interference, such as vibration and external impacts. This can lead to equipment damage and abnormal data measurement. Furthermore, if a single sensor fails or is damaged, the entire detection system becomes ineffective. Therefore, corresponding improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide a land subsidence monitoring device to solve the problems mentioned in the background art, such as the single detection method and poor stability of existing land subsidence monitoring devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surface subsidence monitoring device, comprising a detection cylinder, a fixing plate, and a fixing screw. The detection cylinder is fixed with fixing plates on both sides of its bottom end, and the fixing plates are threadedly connected to fixing screws. The top end of the fixing screw is fixed with a threaded head, and the bottom end of the fixing screw is fixed with a fixing plug.

[0007] A fixing sleeve is fitted around the outside of the detection cylinder, and support components are provided on both sides of the fixing sleeve. A guide block is provided at the top inside the detection cylinder, and a through groove is provided on the guide block. Guide grooves are provided on both sides inside the through groove. A ground subsidence detection mechanism is provided inside the through groove. A subsidence detection block is fitted onto the ground subsidence detection mechanism, and an infrared displacement sensor is provided on the inner wall of the detection cylinder on one side of the subsidence detection block.

[0008] In some embodiments, a control panel is connected to the top of the outer side of the detection cylinder, and an alarm is detachably connected to the detection cylinder on one side of the control panel via a fixing pin. The output end of the infrared displacement sensor is electrically connected to the input end of the control panel via a wire, and the output end of the control panel is electrically connected to the input end of the alarm via a wire.

[0009] In some embodiments, sliding components are provided on both sides of the fixed sleeve, and a supporting inclined rod is connected to one side of each sliding component. A movable seat is movably connected to one end of each supporting inclined rod, and a supporting plate is connected to one end of each movable seat. Ground cones are uniformly fixed at the bottom of the supporting plate, and both the ground cones and the fixed ground plugs are inserted into the detection ground.

[0010] In some embodiments, the sliding assembly includes an adjustment groove disposed on a fixed sleeve, and a sliding block is slidably connected inside the adjustment groove. A movable plate is fixed to one side of the sliding block, and a hinge seat is connected to the outside of the movable plate. The hinge seat is movably connected to one end of a support rod.

[0011] In some embodiments, locking plates are fixed on both sides of the movable plate, and fixing bolts are threaded inside the locking plates, with the fixing bolts extending into the fixing sleeve.

[0012] In some embodiments, the surface subsidence detection mechanism includes a settlement rod disposed inside the detection cylinder. One end of the settlement rod is connected to the top of the settlement cone. Limiting strips are fixed on both sides of the settlement rod, and the limiting strips slide inside the guide groove. Tooth blocks are evenly fixed on both sides of the settlement rod. Power gears are meshed on both sides of the settlement rod through the tooth blocks, and a rotating shaft passes through the inside of each power gear.

[0013] In some embodiments, one end of the rotating shaft is rotatably connected to the inner wall of the detection cylinder, and the other end of the rotating shaft passes through the detection cylinder and is sleeved on the outside. A display pointer is fixed on the outside of the sleeve, and an indicator ring is provided on the outside of the display pointer. The indicator ring is fixed on the outside of the detection cylinder, and scale strips are uniformly fixed inside the indicator ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the surface subsidence monitoring device can not only realize dual detection of surface subsidence and has an alarm prompting effect, but also has a supporting and stable effect;

[0015] After the settlement cone is inserted into the detection area, when the surface subsides, the settlement cone and settlement rod move downwards, causing the toothed block on the outside of the settlement rod to mesh with the power gear. This causes the power gear, shaft, and sleeve to rotate, and the display pointer to rotate synchronously. The display pointer then indicates different scale bars in the indicator ring, allowing personnel to observe the position of the display pointer to make a preliminary assessment of the surface subsidence. This also allows for subsidence detection even if the infrared displacement sensor is damaged.

[0016] The infrared displacement sensor emits infrared rays towards the sinking detection block and receives the returned infrared rays at its receiving end. As the sinking rod descends during the surface subsidence process, the sinking detection block moves synchronously, causing a change in the distance between the sinking detection block and the infrared displacement sensor. The infrared displacement sensor continuously measures and calculates the difference between the current distance and the reference value. If the difference exceeds a preset threshold, the infrared displacement sensor transmits a signal to the control panel. The control panel then drives the alarm to issue an alarm signal so that staff can detect the problem in time and remind relevant departments and residents to take preventive measures to avoid or reduce losses caused by the disaster.

[0017] The detection cylinder is initially fixed by inserting the fixed ground plug into the ground surface through the rotation of the fixed screw. By placing the support plate on the detection ground and inserting the ground cone into the ground, along with the support diagonal brace, the detection cylinder can be further supported, ensuring the stability of the ground subsidence detection, reducing the influence of external factors on the detection, and ensuring the accuracy of the detection.

[0018] By sliding the sliding block in the adjustment groove, the position of the moving plate can be adjusted accordingly, so as to further adjust the support angle of the support diagonal rod on the detection cylinder, optimize the support effect, enhance the support effect on the detection cylinder, and adapt to different complex terrains. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2This is a three-dimensional cross-sectional view of the detection cylinder of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the guide block of this utility model;

[0023] Figure 4 This is a partial three-dimensional structural diagram of the fixing sleeve of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the indicator ring and display pointer of this utility model.

[0025] The following are the annotations in the diagram: 1. Detection cylinder; 2. Fixing plate; 3. Fixing screw; 4. Fixing ground plug; 5. Support plate; 501. Ground cone; 6. Movable seat; 7. Supporting diagonal rod; 8. Fixing sleeve; 801. Adjustment groove; 9. Control panel; 10. Alarm; 11. Indicator ring; 1101. Scale bar; 12. Guide block; 1201. Through groove; 1202. Guide groove; 13. Ground subsidence detection mechanism; 1301. Settlement rod; 1302. Limiting bar; 1303. Tooth block; 1304. Power gear; 1305. Rotating shaft; 1306. Sleeve block; 1307. Display pointer; 14. Subsidence detection block; 15. Settlement cone; 16. Infrared displacement sensor; 17. Moving plate; 1701. Sliding block; 18. Hinge seat; 19. Locking plate; 1901. Fixing bolt. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please see Figures 1-5 The present invention provides the following technical solution:

[0028] To address the issue of insufficient external support and poor stability in existing land subsidence monitoring equipment, the following technical solution is proposed: a land subsidence monitoring device comprising a detection cylinder 1, a fixing plate 2, and fixing screws 3. Fixing plates 2 are fixed to both sides of the bottom of the detection cylinder 1, and fixing screws 3 are threadedly connected inside the fixing plates 2. A threaded head is fixed to the top of each fixing screw 3, and a fixing ground plug 4 is fixed to the bottom of each fixing screw 3. A fixing sleeve 8 is fitted onto the outside of the detection cylinder 1, and support components are provided on both sides of the fixing sleeve 8. Sliding components are also provided on both sides of the fixing sleeve 8. A support diagonal rod 7 is connected to one side of each sliding component, and a movable seat 6 is movably connected to one end of each support diagonal rod 7. A support plate 5 is connected to one end of each movable seat 6, and ground cones 501 are evenly fixed to the bottom of the support plate 5. Both the ground cones 501 and the fixing ground plugs 4 are inserted into the detection ground.

[0029] Specifically, please refer to the test cylinder 1 in Figure 1. When using it, move the test cylinder 1 to the test site, make the support plate 5 fit against the ground, and then use an external tool to press down the support plate 5 so that the ground cone 501 is inserted into the ground. Then, rotate the threaded head at the end of the fixing screw 3 to insert the fixing ground plug 4 into the test site, thus fixing the test cylinder 1. The support plate 5 and the support diagonal rod 7 are used to further support the test cylinder 1, ensuring the stability of the ground subsidence test and avoiding the impact of external forces such as wind on the stability of the test cylinder 1, thus ensuring the accuracy of the test.

[0030] In some embodiments, the sliding assembly includes an adjustment groove 801 disposed on the fixed sleeve 8, and a sliding block 1701 is slidably connected inside the adjustment groove 801. A movable plate 17 is fixed on one side of the sliding block 1701, and a hinge seat 18 is connected to the outside of the movable plate 17. The hinge seat 18 is movably connected to one end of the support rod 7. Locking plates 19 are fixed on both sides of the movable plate 17, and fixing bolts 1901 are threaded inside the locking plates 19. The fixing bolts 1901 extend into the fixed sleeve 8.

[0031] For details, please refer to Figure 1 , Figure 4 As shown, when it is necessary to adjust the support angle of the support rod 7, the sliding block 1701 can be slid in the adjustment groove 801 to adjust the position of the moving plate 17. After adjusting to the appropriate position, the position of the moving plate 17 can be fixed and limited by screwing the fixing bolt 1901 into the fixing sleeve 8. This allows the support angle of the support rod 7 to be adjusted, which helps to enhance the support effect on the detection cylinder 1 and can meet the support requirements of the detection cylinder 1 in different terrain environments.

[0032] In some embodiments, the surface subsidence detection mechanism 13 can be used to achieve comprehensive surface subsidence detection. Therefore, the following technical solution is disclosed: a guide block 12 is provided at the top of the inside of the detection cylinder 1, and a through groove 1201 is provided on the guide block 12. Guide grooves 1202 are provided on both sides of the through groove 1201. The surface subsidence detection mechanism 13 is provided inside the through groove 1201. A subsidence detection block 14 is sleeved on the surface subsidence detection mechanism 13, and an infrared displacement sensor 16 is provided on the inner wall of the detection cylinder 1 on one side of the subsidence detection block 14.

[0033] In some embodiments, the surface subsidence detection mechanism 13 includes a subsidence rod 1301, which is disposed inside the detection cylinder 1. One end of the subsidence rod 1301 is connected to the top of the subsidence cone 15. Limiting strips 1302 are fixed on both sides of the subsidence rod 1301, and the limiting strips 1302 slide inside the guide groove 1202. Tooth blocks 1303 are evenly fixed on both sides of the subsidence rod 1301, and the tooth blocks 1303 mesh with the ground on both sides of the subsidence rod 1301. The power gear 1304 has a rotating shaft 1305 running through it. One end of the rotating shaft 1305 is rotatably connected to the inner wall of the detection cylinder 1. The other end of the rotating shaft 1305 runs through the detection cylinder 1 and is sleeved with a sleeve block 1306. A display pointer 1307 is fixed on the outside of the sleeve block 1306. An indicator ring 11 is provided on the outside of the display pointer 1307 and is fixed on the outside of the detection cylinder 1. A scale bar 1101 is evenly fixed inside the indicator ring 11.

[0034] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 When in use, if the ground subsidence occurs, the settlement cone 15 and the settlement rod 1301 will move downwards. During the downward movement of the settlement rod 1301, the limiting strip 1302 slides in the guide groove 1202 to limit and guide the descent of the settlement rod 1301, ensuring that the settlement rod 1301 remains vertically downward. During the downward movement of the settlement rod 1301, the toothed block 1303 on its outer side meshes with the power gear 1304, thereby causing the power gear 1304, the rotating shaft 1305 and the sleeve block 1306 to rotate, and causing the display pointer 1307 to rotate synchronously. This causes the display pointer 1307 to indicate different scale bars 1101 in the indicator ring 11, so that when ground subsidence occurs, the staff can observe the indicated position of the display pointer 1307 to make a preliminary detection of the ground subsidence.

[0035] In some embodiments, a control panel 9 is connected to the top of the outer side of the detection cylinder 1, and an alarm 10 is detachably connected to the detection cylinder 1 on one side of the control panel 9 via a fixing pin. The output end of the infrared displacement sensor 16 is electrically connected to the input end of the control panel 9 via a wire, and the output end of the control panel 9 is electrically connected to the input end of the alarm 10 via a wire.

[0036] For details, please refer to Figure 1 , Figure 2 When in use, when ground subsidence occurs, the settlement rod 1301 sinks downwards, causing the subsidence detection block 14 to move downwards synchronously. The infrared displacement sensor 16 detects a change in the distance between itself and the subsidence detection block 14. When the distance exceeds a preset value, the infrared displacement sensor 16 transmits a signal to the control panel 9. The control panel 9 then drives the alarm 10 to issue an alarm signal so that staff can detect the problem in time and remind relevant departments and residents to take preventive measures to avoid or reduce losses caused by the disaster.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. 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, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A surface subsidence monitoring device, comprising a detection cylinder, a fixing plate, and a fixing screw, wherein the detection cylinder is fixed with fixing plates on both sides of its bottom end, and the fixing plates are threadedly connected to the fixing screws, the fixing screws are fixed with threaded heads at their top ends, and the fixing screws are fixed with ground plugs at their bottom ends; Its features are: A fixing sleeve is fitted around the outside of the detection cylinder, and support components are provided on both sides of the fixing sleeve. A guide block is provided at the top inside the detection cylinder, and a through groove is provided on the guide block. Guide grooves are provided on both sides inside the through groove. A ground subsidence detection mechanism is provided inside the through groove. A subsidence detection block is fitted onto the ground subsidence detection mechanism, and an infrared displacement sensor is provided on the inner wall of the detection cylinder on one side of the subsidence detection block.

2. The land subsidence monitoring device according to claim 1, characterized in that: A control panel is connected to the top of the outer side of the detection cylinder, and an alarm is detachably connected to the detection cylinder on one side of the control panel via a fixing pin. The output end of the infrared displacement sensor is electrically connected to the input end of the control panel via a wire, and the output end of the control panel is electrically connected to the input end of the alarm via a wire.

3. The land subsidence monitoring device according to claim 1, characterized in that: Both sides of the fixed sleeve are provided with sliding components. One side of each sliding component is connected to a supporting inclined rod, and one end of each supporting inclined rod is movably connected to a movable seat. One end of each movable seat is connected to a support plate, and ground cones are evenly fixed at the bottom of the support plate. Both the ground cones and the fixed ground plugs are inserted into the detection ground.

4. The land subsidence monitoring device according to claim 3, characterized in that: The sliding assembly includes an adjustment groove disposed on a fixed sleeve, and a sliding block is slidably connected inside the adjustment groove. A movable plate is fixed to one side of the sliding block, and a hinge seat is connected to the outside of the movable plate. The hinge seat is movably connected to one end of the support rod.

5. A land subsidence monitoring device according to claim 4, characterized in that: Both sides of the movable plate are fixed with locking plates, and the locking plates are threaded with fixing bolts, which extend into the inside of the fixing sleeve.

6. The land subsidence monitoring device according to claim 1, characterized in that: The surface subsidence detection mechanism includes a settlement rod, which is installed inside the detection cylinder. One end of the settlement rod is connected to the top of the settlement cone. Limiting strips are fixed on both sides of the settlement rod, and the limiting strips slide inside the guide groove. Tooth blocks are evenly fixed on both sides of the settlement rod. Power gears are meshed on both sides of the settlement rod through the tooth blocks, and a rotating shaft runs through the inside of each power gear.

7. A land subsidence monitoring device according to claim 6, characterized in that: One end of the rotating shaft is rotatably connected to the inner wall of the detection cylinder, and the other end of the rotating shaft passes through the detection cylinder and is sleeved on the outside. A display pointer is fixed on the outside of the sleeve, and an indicator ring is provided on the outside of the display pointer. The indicator ring is fixed on the outside of the detection cylinder, and scale strips are evenly fixed inside the indicator ring.

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