Monitoring and early warning device for surface collapse deformation

Abstract

The invention provides a monitoring and early warning device for surface collapse deformation, and belongs to the technical field of geological monitoring, the monitoring and early warning device comprises a protection assembly and a sleeve, the protection assembly comprises a vertical cylinder and a protection cylinder, the monitoring and early warning device further comprises a marking assembly, the marking assembly is used for marking a collapse area, and the marking assembly is connected with a protection cap and a sealing sleeve; the movable assembly is used for releasing a marker in the marking assembly, and a rotating cylinder is arranged at one end of the movable assembly; the detection assembly is used for monitoring the surface collapse position; the device has the beneficial effects that the movable rod and the vertical rod are driven to move through the detection head, the rotating cylinder rotates and drives the push rod and the piston plate to move upwards at the same time, and finally the marker is released, so that the ground is marked markedly, the range of ground collapse can be defined visually, workers can identify the collapse area rapidly on site, and the working efficiency is improved. And timely alarm for the collapse area is completed, and related personnel are reminded of collapse of the ground, so that the early warning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of geological monitoring technology, and in particular to a monitoring and early warning device for ground collapse and deformation. Background Art

[0002] Due to the migration of underground materials, cavities will be produced in the soil layer, which will cause ground subsidence or even sudden ground collapse. The causes of soil cavities include two factors: natural and human activities. Ground collapse caused by natural factors often occurs in karst development areas with covering soil. The soil above the rock surface is lost and migrated under the action of self-weight stress, groundwater seepage force and other forces to form cavities in the soil. Human factors mainly include underground resource exploitation, underground engineering construction and underground pipeline leakage, which cause the soil layer to be disturbed and hollowed out to form soil holes. Ground collapse usually starts from the lower part of the ground, with small-scale cavities or landslides appearing first, and then gradually expanding to large-scale collapse. Because the lower part of the ground is in a closed state, it is not easy to be detected when the landslide initially occurs. When the collapse gradually expands to a large-scale collapse of the ground surface, it often causes huge safety accidents.

[0003] In the prior art, ground collapse warning equipment is not convenient for intuitively determining the specific conditions of underground geology, and it is difficult to take targeted and effective treatment measures in a timely manner. Ground collapse warnings are mostly passive notifications, with low warning efficiency, and it is impossible to predict the collapse situation. In addition, during the use of the warning equipment, the soil will be blocked by the erosion of rainwater, making it difficult to find, making it impossible for staff to quickly identify the collapsed area on site. How to invent a ground collapse deformation monitoring and early warning device to solve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0004] In order to make up for the above shortcomings, the present invention provides a monitoring and early warning device for ground collapse and deformation, aiming to solve the problem that the early warning efficiency is low and it is not easy to find, making it impossible for staff to quickly identify the collapsed area on site.

[0005] The present invention is achieved in that: The present invention provides a monitoring and early warning device for ground collapse and deformation, comprising a protection component and a sleeve, wherein the protection component comprises a vertical tube and a protection tube, and further comprises: A marking component, the marking component is connected to the protection component, the marking component is used to mark the collapsed area, and the marking component is connected to a protection cap; A movable component, the movable component is connected to the sleeve, the movable component is used to release the marking object inside the marking component, and one end of the movable component is provided with a rotating cylinder; A detection component is connected to the movable component, and the detection component is used to monitor the ground collapse position.

[0006] Preferably, one end of the vertical tube is fixedly connected to the protective tube, a plurality of protective strips distributed in a circumferential array are fixedly connected to the outer wall of the protective tube, the inner wall of the vertical tube is limitedly slidable with one end of a sleeve, and the sleeve is located inside the protective tube.

[0007] Preferably, the marking assembly includes a positioning plate and a storage cylinder, the positioning plate is fixedly connected to the storage cylinder, the positioning plate is fixedly connected to the vertical cylinder, the positioning plate is connected to a positioning rod, the side wall of the positioning plate is fixedly connected to an extension tube, the end of the extension tube away from the positioning plate is threadedly connected to a protective cap, the side wall of the extension tube is provided with a plurality of unidirectional spray holes distributed in a circumferential array, and the outer wall of the extension tube is provided with a sealing sleeve.

[0008] Preferably, the marking assembly also includes a push rod and a piston plate, one end of the push rod is fixedly connected to the outer wall with an external thread, the other end of the push rod vertically penetrates the side wall of the storage cylinder, the push rod is fixedly connected to the piston plate, and the piston plate is limitedly slidably connected to the inner wall of the storage cylinder.

[0009] Preferably, one end of the rotating cylinder is rotatably connected to the inside of the sleeve, the inner wall of the rotating cylinder is threadedly connected to the external thread, the other end of the rotating cylinder is provided with a pressure alarm sensor, the outer wall of the rotating cylinder is provided with a spiral groove, and the interior of the sleeve is provided with a limiting slot hole.

[0010] Preferably, the movable component includes a movable rod and a vertical rod, one end of the movable rod is fixedly connected to a limiting plate, the limiting plate and the inner wall of the limiting slot are slidingly connected, the side wall of the limiting plate is fixedly connected to the vertical rod, the side wall of the vertical rod is fixedly connected with a sliding rod, and the end of the sliding rod away from the vertical rod is slidingly connected to the inner wall of the spiral groove.

[0011] Preferably, the movable component also includes a top block, a telescopic spring and a pull rod, the telescopic spring is sleeved on one end of the pull rod, one end of the pull rod is fixedly connected to the top block, both ends of the telescopic spring are respectively fixedly connected to the side wall of the top block and the side wall of the movable rod, and the end of the top block away from the pull rod is magnetically connected to one end of the rotating cylinder.

[0012] Preferably, the detection assembly comprises a detection head, the detection head is fixedly connected to one end of the movable rod away from the limiting plate, a cavity is defined inside the detection head, and an electric igniter is fixedly connected to the inner wall of the cavity.

[0013] Preferably, the end of the pull rod away from the top block vertically penetrates the limit plate, the movable rod and the cavity in sequence, the interior of the cavity is provided with an inert gas, the end of the pull rod located inside the cavity is fixedly connected to an extrusion block, and the extrusion block is located directly below the electric igniter.

[0014] Preferably, a placement slot is provided on the side wall of the detection head, one side of the placement slot is connected to the cavity, an airbag is provided inside the placement slot, one end of the airbag is connected to the inside of the cavity, and a shedding head is clamped on one side of the opening of the placement slot.

[0015] The beneficial effects of the present invention are: 1. When local collapse occurs in the soil, the lower end of the detection head corresponding to the collapsed part loses support and falls, thereby driving the movable rod and the vertical rod to move downward, and the rotating connection between the rotating cylinder and the sleeve allows the rotating cylinder to rotate inside the sleeve, while driving the push rod to move toward the side of the positioning plate. During this movement, the piston plate will release the markers stored inside the cylinder from multiple one-way spray holes, thereby marking the ground conspicuously, helping to intuitively define the scope of the ground collapse, and facilitating the staff to quickly identify the collapsed area on site. During on-site investigation and emergency rescue, the staff can quickly determine the approximate scope of the collapse based on these marks, thereby improving work efficiency, and timely warning of the collapsed area in pairs through the pressure alarm sensor to remind relevant personnel of the ground collapse, thereby improving the efficiency of early warning.

[0016] 2. At the same time, when the detection head moves downward, the electric igniter is brought into contact with the extrusion block. When the electric igniter is triggered, the gas inside the cavity expands rapidly in a short period of time and quickly fills into the airbag, causing the compressed airbag to pop out quickly. By adopting this chemical reaction-based gas generating agent method, the airbag can be quickly popped out, protecting the electronic components inside the detection head from damage, thereby ensuring effective feedback of the signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall half-section structure of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the protective tube structure of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Figure 4It is a schematic diagram of the structure of a marking component of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the active components and the detection components of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Figure 6 The present invention provides a monitoring and early warning device for ground collapse and deformation. Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 It is a schematic diagram of the internal structure of a movable rod of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Figure 8 The present invention provides a monitoring and early warning device for ground collapse and deformation. Figure 7 A magnified schematic diagram of the structure at B in the middle; Fig. 9 It is a schematic diagram of the top plate structure of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Fig.10 It is a schematic diagram of the rotating cylinder structure of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Fig.11 It is a schematic diagram of the sleeve structure of a ground collapse and deformation monitoring and early warning device provided by an embodiment of the present invention; Fig.12 It is a structural schematic diagram of the falling process of a detection head of a ground collapse and deformation monitoring and early warning device provided in an embodiment of the present invention.

[0019] In the figure: 1. marking component; 101. positioning plate; 102. push rod; 1021. external thread; 103. piston plate; 104. storage cylinder; 105. extension tube; 1051. one-way spray hole; 2. positioning rod; 3. protection component; 31. vertical cylinder; 32. protection cylinder; 33. protection strip; 4. detection component; 41. detection head; 42. shedding head; 43. airbag; 44. cavity; 45. electric igniter; 46. placement slot; 5. protection cap; 6. sealing sleeve; 7. movable component; 71. movable rod; 72. limit plate; 73. vertical rod; 74. sliding rod; 75. top block; 76. telescopic spring; 77. pull rod; 78. extrusion block; 8. sleeve; 81. limit slot; 9. rotating cylinder; 91. spiral groove; 10. pressure alarm sensor. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1, refer to Figure 1-Figure 11 A monitoring and early warning device for ground collapse and deformation includes a protection component 3 and a sleeve 8. The protection component 3 includes a vertical tube 31 and a protection tube 32, and also includes: A marking component 1, the marking component 1 is connected to the protection component 3, the marking component 1 is used to mark the collapsed area, and the marking component 1 is connected to the protection cap 5; A movable component 7, which is connected to a sleeve 8, and is used to release the marking object inside the marking component 1. A rotating cylinder 9 is provided at one end of the movable component 7; The detection component 4 is connected to the movable component 7, and the detection component 4 is used to monitor the ground collapse position.

[0022] Furthermore, one end of the vertical cylinder 31 is fixedly connected to the protective cylinder 32, and the outer wall of the protective cylinder 32 is fixedly connected with a plurality of protective strips 33 distributed in a circumferential array. The inner wall of the vertical cylinder 31 is limitedly slidable with one end of the sleeve 8, and the sleeve 8 is located inside the protective cylinder 32.

[0023] The protective tube 32 ensures the smooth falling of the detection head 41: when the equipment is in use, one end of the protective tube 32 can be inserted into the ground, so that the positioning plate 101 is finally in contact with the ground. The lower end of the protective tube 32 is tapered to better insert it into the ground and reduce the resistance of the soil during insertion. The protection strip 33 is provided to improve the overall impact resistance of the protective tube 32, reduce the damage to the protective tube 32 caused by external factors, and avoid bending and deformation of the protective tube 32 to affect the normal falling process of the detection head 41.

[0024] Reference Figure 2 , Figure 4 , Figure 5 and Figure 6, further; the marking component 1 includes a positioning plate 101 and a storage cylinder 104, the positioning plate 101 is fixedly connected to the storage cylinder 104, the positioning plate 101 is fixedly connected to the vertical cylinder 31, the positioning plate 101 is connected to the positioning rod 2, the side wall of the positioning plate 101 is fixedly connected to an extension tube 105, the end of the extension tube 105 away from the positioning plate 101 is threadedly connected to the protective cap 5, the side wall of the extension tube 105 is provided with a plurality of unidirectional spray holes 1051 distributed in a circumferential array, and the outer wall of the extension tube 105 is provided with a sealing sleeve 6; the marking component 1 also includes a push rod 102 and a piston plate 103, the outer wall of one end of the push rod 102 is fixedly connected to an external thread 1021, the other end of the push rod 102 vertically penetrates the side wall of the storage cylinder 104, and the push rod 102 and the piston plate 1 03 is fixedly connected, the piston plate 103 is limitedly slidably connected with the inner wall of the storage cylinder 104; one end of the rotating cylinder 9 is rotatably connected with the inside of the sleeve 8, the inner wall of the rotating cylinder 9 is threadedly connected with the external thread 1021, and the other end of the rotating cylinder 9 is provided with a pressure alarm sensor 10, the outer wall of the rotating cylinder 9 is provided with a spiral groove 91, and the interior of the sleeve 8 is provided with a limiting groove hole 81; the movable component 7 includes a movable rod 71 and a vertical rod 73, one end of the movable rod 71 is fixedly connected to the limiting plate 72, the limiting plate 72 and the inner wall of the limiting groove hole 81 are limitedly slidably connected, the side wall of the limiting plate 72 is fixedly connected to the vertical rod 73, the side wall of the vertical rod 73 is fixedly connected with a sliding rod 74, and the end of the sliding rod 74 away from the vertical rod 73 is slidably connected to the inner wall of the spiral groove 91.

[0025] Marking component 1 is used to mark the collapsed area: Figure 2 As shown, after the whole device is inserted into the ground, the positioning plate 101 is flush with the ground, and then a plurality of positioning rods 2 are passed through the positioning plate 101 and inserted deep into the ground to complete the fixed installation of the whole device. Before that, the interior of the storage tube 104 is filled with eye-catching liquids, such as fluorescent substances, chemical tracers, etc. These markers can leave obvious marks on the ground or the surrounding environment, and the markers are made of degradable materials to avoid pollution to the land, thereby helping to intuitively define the scope of ground collapse and facilitating the staff to quickly identify the collapsed area on site. In addition, during the installation process, the sealing sleeve 6 is always sleeved on the outer wall of the extension tube 105, and the one-way spray hole 1051 can be blocked to prevent the marker from overflowing. After the whole device is fixed, the protective cap 5 and the extension tube 105 can be separated, so that the sealing sleeve 6 can be removed to facilitate the subsequent release of the marker, and the sealing sleeve 6 can be reused to save resources. In the specific use process, when the soil below the ground partially collapses, the lower end of the detection head 41 corresponding to the collapsed part loses support and falls, thereby driving the movable rod 71 to slide downward inside the limiting slot 81, and at the same time causing the vertical rod 73 to move downward. In this process, since the deadweight of the movable rod 71 and the detection assembly 4 is greater than the friction between the slide rod 74 and the spiral groove 91, and the rotating connection between the rotating cylinder 9 and the sleeve 8 is cooperated, the rotating cylinder 9 can rotate inside the sleeve 8. At the same time, through the rotating cylinder 9 and the external thread 1021 The threaded connection between the piston plate 103 and the inner wall of the storage tube 104 can drive the push rod 102 to move toward the side of the positioning plate 101, and during this movement, the piston plate 103 will release the markers inside the storage tube 104 from the multiple one-way spray holes 1051, thereby marking the ground conspicuously. During on-site investigation and emergency rescue, the staff can quickly determine the approximate scope of the collapse based on these marks, thereby improving work efficiency. In addition, the marking component 1 can be reused after recovery and cleaning, thereby reducing the waste of resources.

[0026] Furthermore, the movable component 7 also includes a top block 75, a telescopic spring 76 and a pull rod 77. The telescopic spring 76 is sleeved on one end of the pull rod 77, and one end of the pull rod 77 is fixedly connected to the top block 75. Both ends of the telescopic spring 76 are respectively fixedly connected to the side wall of the top block 75 and the side wall of the movable rod 71. The end of the top block 75 away from the pull rod 77 is magnetically connected to one end of the rotating cylinder 9; the end of the pull rod 77 away from the top block 75 vertically penetrates the limit plate 72, the movable rod 71 and the cavity 44 in sequence, and an inert gas is provided inside the cavity 44. The end of the pull rod 77 located inside the cavity 44 is fixedly connected to an extrusion block 78, and the extrusion block 78 is located directly below the electric igniter 45.

[0027] The movable component 7 quickly alarms the collapsed area: the end of the top block 75 away from the telescopic spring 76 and the lower end of the rotating cylinder 9 are both made of magnetic materials. The top block 75 can squeeze the pressure alarm sensor 10 under the mutual adsorption force of the two in the initial state. When the pressure alarm sensor 10 has been monitoring the pressure value, it is in a normal state. When a collapse occurs, since the overall gravity of the movable rod 71 and the detection component 4 is greater than the magnetic attraction between the top block 75 and the rotating cylinder 9, the top block 75 will be separated from the rotating cylinder 9. After the separation, the pressure alarm sensor 10 loses the external compression, so that the pressure value exceeds the set range. Through the electrical signal connection between the pressure alarm sensor 10 and the terminal controller, the signal can be transmitted to the terminal to issue an early warning, so as to complete the timely alarm of the collapsed area and remind relevant personnel that the ground has collapsed. In addition, the distance between the extrusion block 78 and the electric igniter 45 is relatively short. If the depth of the collapse is less than the distance between the extrusion block 78 and the electric igniter 45, the top block 75 cannot be separated from the rotating cylinder 9. Therefore, the pressure alarm sensor 10 will not issue an alarm signal, which is within the normal range of soil layer activity. The early warning issued by monitoring can determine that the corresponding stratum has collapsed, which is convenient for subsequent rescue and avoids large-scale collapse accidents.

[0028] Example 2, refer to Figure 7 , Figure 8 and Fig.12 , further; the detection assembly 4 includes a detection head 41, the detection head 41 is fixedly connected to one end of the movable rod 71 away from the limit plate 72, a cavity 44 is opened inside the detection head 41, and an electric igniter 45 is fixedly connected to the inner wall of the cavity 44; a placement slot 46 is opened on the side wall of the detection head 41, one side of the placement slot 46 is connected to the cavity 44, an airbag 43 is arranged inside the placement slot 46, one end of the airbag 43 is connected to the inside of the cavity 44, and a fall-off head 42 is clamped on one side of the opening of the placement slot 46.

[0029] The airbag 43 protects the detection head 41 during the falling process: the detection head 41 is provided with a plurality of sensors inside. The changes of physical quantities such as displacement, speed, acceleration, etc. of the detection head 41 during the falling process will be monitored and recorded in real time by the displacement sensor, acceleration sensor, etc. carried by the detection head 41. At the same time, the data transmission module is started to transmit the collected sensor data and the status information of the probe itself to the monitoring center through wired or wireless means, so that the staff can obtain the relevant information of the ground collapse in time. When the ground collapses, the telescopic spring 76 is stretched first due to the deadweight of the movable rod 71 and the detection assembly 4, such as Fig.12As shown, during the downward movement of the detection head 41, the electric igniter 45 is brought into contact with the extrusion block 78, and before the detection head 41 is installed, a gas generator can be filled into the cavity 44. The gas generator can be composed of chemical substances such as sodium azide. When the electric igniter 45 is triggered, the gas generator is ignited to cause a chemical reaction. Taking sodium azide as an example, after receiving the trigger signal, it will quickly decompose to produce a large amount of nitrogen. The generated gas will expand rapidly in a short time. At the same time, the expanded gas will quickly fill the interior of the airbag 43, causing the compressed airbag 43 to pop out quickly. In some cases where it is needed In the fast-response ground collapse monitoring and early warning device, when the detection head 41 suddenly falls, it may mean that the ground has collapsed sharply. The use of this chemical reaction-based gas generator method can quickly pop out the airbag 43 to protect the electronic components inside the detection head 41 from damage to ensure effective signal feedback. Nitrogen is an inert gas with stable properties and is not easy to react chemically with other substances, which ensures the safety of the airbag 43 after it is popped out. In addition, due to the expansion of the gas, the airbag 43 quickly separates the snap-on detachment head 42 from the detection head 41 to ensure the smooth release of the airbag 43.

[0030] It should be noted that the specific model specifications need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ground collapse and deformation monitoring and early warning device, comprising a protection component (3) and a sleeve (8), wherein the protection component (3) comprises a vertical cylinder (31) and a protection cylinder (32), characterized in that: Also includes: A marking component (1), the marking component (1) being connected to the protection component (3), the marking component (1) being used to mark the collapsed area, the marking component (1) being connected to a protection cap (5); A movable component (7), the movable component (7) being connected to the sleeve (8), the movable component (7) being used to release the marking object inside the marking component (1), and a rotating cylinder (9) being provided at one end of the movable component (7); A detection component (4), the detection component (4) being connected to the movable component (7), and the detection component (4) being used to monitor the position of ground collapse.

2. according to claim 1 one A monitoring and early warning device for ground collapse and deformation, characterized in that: One end of the vertical cylinder (31) is fixedly connected to the protective cylinder (32); a plurality of protective strips (33) distributed in a circumferential array are fixedly connected to the outer wall of the protective cylinder (32); the inner wall of the vertical cylinder (31) is limitedly slidable with one end of a sleeve (8); and the sleeve (8) is located inside the protective cylinder (32).

3. The ground collapse and deformation monitoring and early warning device according to claim 1 is characterized in that: The marking assembly (1) comprises a positioning plate (101) and a storage cylinder (104); the positioning plate (101) is fixedly connected to the storage cylinder (104); the positioning plate (101) is fixedly connected to the vertical cylinder (31); the positioning plate (101) is connected to a positioning rod (2); an extension tube (105) is fixedly connected to the side wall of the positioning plate (101); one end of the extension tube (105) away from the positioning plate (101) is threadedly connected to a protective cap (5); a plurality of one-way spray holes (1051) distributed in a circumferential array are formed on the side wall of the extension tube (105); and a sealing sleeve (6) is provided on the outer wall of the extension tube (105).

4. A ground collapse and deformation monitoring and early warning device according to claim 3, characterized in that: The marking assembly (1) further comprises a push rod (102) and a piston plate (103); an outer wall at one end of the push rod (102) is fixedly connected with an external thread (1021); the other end of the push rod (102) vertically penetrates the side wall of the storage cylinder (104); the push rod (102) is fixedly connected to the piston plate (103); and the piston plate (103) is limitedly slidably connected to the inner wall of the storage cylinder (104).

5. The ground collapse and deformation monitoring and early warning device according to claim 4 is characterized in that: One end of the rotating cylinder (9) is rotatably connected to the inside of the sleeve (8), the inner wall of the rotating cylinder (9) is threadedly connected to the external thread (1021), the other end of the rotating cylinder (9) is provided with a pressure alarm sensor (10), the outer wall of the rotating cylinder (9) is provided with a spiral groove (91), and the interior of the sleeve (8) is provided with a limit slot hole (81).

6. The ground collapse and deformation monitoring and early warning device according to claim 5, characterized in that: The movable assembly (7) comprises a movable rod (71) and a vertical rod (73); one end of the movable rod (71) is fixedly connected to a limit plate (72); the limit plate (72) is slidably connected to the inner wall of the limit slot (81); the side wall of the limit plate (72) is fixedly connected to the vertical rod (73); the side wall of the vertical rod (73) is fixedly connected to a sliding rod (74); one end of the sliding rod (74) away from the vertical rod (73) is slidably connected to the inner wall of the spiral groove (91).

7. The ground collapse and deformation monitoring and early warning device according to claim 1 is characterized in that: The movable assembly (7) further comprises a top block (75), a telescopic spring (76) and a pull rod (77); the telescopic spring (76) is sleeved on one end of the pull rod (77); one end of the pull rod (77) is fixedly connected to the top block (75); two ends of the telescopic spring (76) are respectively fixedly connected to the side wall of the top block (75) and the side wall of the movable rod (71); and one end of the top block (75) away from the pull rod (77) is magnetically connected to one end of the rotating cylinder (9).

8. The ground collapse and deformation monitoring and early warning device according to claim 7, characterized in that: The detection assembly (4) comprises a detection head (41), the detection head (41) being fixedly connected to one end of a movable rod (71) away from a limiting plate (72), a cavity (44) being provided inside the detection head (41), and an electric igniter (45) being fixedly connected to an inner wall of the cavity (44).

9. The ground collapse and deformation monitoring and early warning device according to claim 8, characterized in that: One end of the pull rod (77) away from the top block (75) vertically penetrates the limit plate (72), the movable rod (71) and the cavity (44) in sequence, and an inert gas is provided inside the cavity (44). One end of the pull rod (77) located inside the cavity (44) is fixedly connected to an extrusion block (78), and the extrusion block (78) is located directly below the electric igniter (45).

10. The ground collapse and deformation monitoring and early warning device according to claim 8, characterized in that: A placement slot (46) is provided on the side wall of the detection head (41), one side of the placement slot (46) is connected to the cavity (44), an air bag (43) is provided inside the placement slot (46), one end of the air bag (43) is connected to the inside of the cavity (44), and a shedding head (42) is clamped on one side of the opening of the placement slot (46).

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