Real-time warning device for geotechnical engineering stability and its warning method

Abstract

The present invention discloses a real-time early warning device for geotechnical engineering stability and its early warning method, which includes a circular chassis. A plurality of circular through holes are provided on the outer side of the top surface of the circular chassis. An extended gear is inserted into each circular through hole. A fixing component is installed at the bottom end of each extended gear. The plurality of extended gears are connected to the circular chassis through an engaging mechanism. A fixing through hole is provided in the middle of the circular chassis. A hollow cylinder is inserted into the fixing through hole. A threaded ring is provided at the top of the hollow cylinder. An inner cylinder is provided in the middle and lower part of the hollow cylinder. A second lead screw is provided in the middle of the inner bottom wall of the inner cylinder. A plurality of second lead screw nuts are sleeved on the second lead screw. A plurality of monitoring mechanisms are provided on each second lead screw nut. The present invention solves the problem of poor early warning effect of the existing real-time early warning device for geotechnical engineering stability. Moreover, the overall structure is designed compactly, which facilitates the effective fixing and installation of the device, synchronously conducts multi-value pressure detection, and further improves the timeliness of early warning.

Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical pressure early warning, and particularly relates to a real-time early warning device for geotechnical engineering stability and an early warning method thereof. Background Art

[0002] During the construction of geotechnical engineering, it is necessary to install earth pressure gauges inside the soil of structures such as earth-rock dams, earth dikes, slopes, and roadbeds, long-term measure the compressive stress of the soil inside the structures such as earth-rock dams, earth dikes, slopes, and roadbeds, and conduct early warning through an early warning device.

[0003] Existing real-time early warning devices for geotechnical engineering stability have the following disadvantages: 1. The installation stability is poor, which is not convenient for staff to move and use, and is not convenient to be fixed around the foundation pit, affecting the accuracy of the detection value; 2. When the pressure gauge conducts detection, the detection result is single, and multiple detection operations cannot be carried out synchronously. Once the pressure gauge is damaged, the accurate pressure cannot be displayed, affecting the timeliness of its early warning. Summary of the Invention

[0004] The purpose of the present invention is to propose a real-time early warning device for geotechnical engineering stability in order to solve the disadvantage of poor early warning effect of existing real-time early warning devices for geotechnical engineering stability in the prior art.

[0005] In order to solve the problem of poor early warning effect of existing real-time early warning devices for geotechnical engineering stability in the prior art, the present invention adopts the following technical solutions:

[0006] A real-time early warning device for geotechnical engineering stability, including a circular chassis, a plurality of circular through holes are opened on the outer side of the top surface of the circular chassis, a lengthened gear is inserted into each circular through hole, a fixing component is installed at the bottom end of each lengthened gear, and a plurality of lengthened gears are connected to the circular chassis through a meshing mechanism; a fixing through hole is opened in the middle of the circular chassis, a hollow cylinder is inserted into the fixing through hole, a threaded ring is provided at the top of the hollow cylinder, an inner cylinder is provided in the middle and lower part of the hollow cylinder, a second lead screw is provided in the middle of the inner bottom wall of the inner cylinder, a plurality of second lead screw nuts are sleeved on the second lead screw, and a plurality of monitoring mechanisms are provided on each second lead screw nut.

[0007] Preferably, a plurality of fixing blocks are provided below the bottom surface of the circular chassis, the plurality of fixing blocks correspond to the plurality of circular through holes one by one, a pair of inclined plates are provided on both sides of each fixing block, and the top of each inclined plate is fixedly connected to the bottom surface of the circular chassis; a plurality of L-shaped plates are provided on the outer circumferential surface of the circular chassis, and rollers are installed on the bottom surface of each L-shaped plate.

[0008] Preferably, the fixing component includes a first wire barrel and a first lead screw. The middle of each fixing block is inserted with a first wire barrel, the bottom end of each lengthened gear is provided with a first lead screw, the middle of each first lead screw penetrates through the corresponding first wire barrel and is threadedly connected with the first wire barrel, and the bottom end of each first lead screw is provided with a coaxially connected drill bit.

[0009] Preferably, the meshing mechanism includes a fixing ring and an external gear ring. A fixing ring is provided on the top surface of the circular chassis, and the fixing ring is located inside a number of circular through holes. A channel steel ring is clamped on the fixing ring, and an external gear ring is sleeved on the outer circumferential surface of the channel steel ring. The external gear ring is sequentially meshed with a number of lengthened gears.

[0010] Preferably, a plane gear ring is provided on the top surface of the channel steel ring, a servo motor is provided on one side of the top surface of the circular chassis, a driving gear is sleeved on the end of the motor shaft of the servo motor, and the driving gear is meshed with the plane gear ring.

[0011] Preferably, an outer ring is sleeved on the top of the outer circumferential surface of the hollow cylinder. A number of sliding rods are provided on the bottom surface of the outer ring. The bottom end of each sliding rod is fixedly connected to the bottom surface of the circular chassis. A sliding cylinder is sleeved on the middle of each sliding rod. A slider is provided on the inner side surface of each sliding cylinder. A number of vertically parallel rectangular sliding holes are opened in the upper middle part of the outer circumferential surface of the hollow cylinder. Each slider slidably penetrates through the corresponding rectangular sliding hole and is fixedly connected to the top of the inner cylinder.

[0012] Preferably, the monitoring mechanism includes a pressure detection sensor. A number of piston cylinders are provided on the inner wall of the inner cylinder below the second wire barrel. A piston is provided in the middle of each piston cylinder. A piston rod is inserted into the inner port of each piston cylinder. The inner end of each piston rod is fixedly connected to the piston, and a pressure detection sensor is provided on the other side surface of each piston. A number of connecting rods are provided on the outer side surface of the second wire barrel. The outer end of each connecting rod is movably hinged to the outer end of the piston rod; a controller is provided on the other side of the top surface of the circular chassis. A pair of alarm lights are provided on the front and back sides of the circular chassis. The signal output ends of a number of pressure detection sensors are electrically connected to the signal input end of the controller in a wired manner. The early warning control end of the controller is electrically connected to the early warning receiving end of a pair of alarm lights.

[0013] Preferably, a positioning ring is provided on the top of the inner cylinder. A bearing ring is provided inside the positioning ring. An external threaded cylinder is inserted into the bearing ring. The middle of the external threaded cylinder penetrates through the threaded ring and is threadedly connected with the threaded ring, and a first rotating ring is provided on the top of the external threaded cylinder.

[0014] Preferably, a long shaft rotatably connected is inserted in the middle of the inner top wall of the inner cylinder. The bottom end of the long shaft is coaxially connected to the top of the second lead screw. The top end of the long shaft penetrates through the inner top wall of the external thread cylinder and is rotatably connected to the inner top wall of the external thread cylinder. And a second rotating ring is concentrically and fixedly arranged at the top end of the long shaft.

[0015] The present invention also proposes an early warning method for the real-time early warning equipment of geotechnical engineering stability, including the following steps:

[0016] Step 1, dig a deep pit with a diameter slightly larger than the inner cylinder in the geotechnical area that needs to be warned. Push the rollers and move the circular chassis above the deep pit so that the bottom of the inner cylinder is facing the deep pit directly;

[0017] Step 2, start the servo motor. The motor shaft of the servo motor drives the driving gear to rotate synchronously. The driving gear meshes with the planar gear ring, the channel steel ring and the external gear ring to rotate along the fixed ring. The external gear ring meshes and drives a number of lengthened gears to rotate;

[0018] Step 3, the lengthened gear drives the first lead screw to rotate spirally along the first lead screw cylinder. The first lead screw drives the drill bit to spiral downward synchronously. The drill bit slowly drills the geotechnical around the deep pit, so that the drill bit and the first lead screw are fixed in the drill hole. Stop the operation of the servo motor;

[0019] Step 4, drive the external thread cylinder to rotate spirally along the thread ring through the first rotating ring, drive the inner cylinder to slide downward along the hollow cylinder, drive the slider to slide downward along the rectangular sliding hole, drive the sliding cylinder to slide downward along the sliding rod, and drive the middle and lower part of the inner cylinder to penetrate into the deep pit;

[0020] Step 5, drive the long shaft and the second lead screw to rotate through the second rotating ring. The second lead screw rotates spirally along the second lead screw cylinder. The second lead screw cylinder drives a number of connecting rods to slowly descend. Through the hinge action, drive the piston rod, the piston and the pressure detection sensor to slide outward along the piston cylinder, and drive the pressure detection sensor to press against the inner wall of the deep pit;

[0021] Step 6, start the controller and set the pressure threshold. The inner wall pressure of the deep pit is detected in real time by the pressure detection sensor, and the detected value is transmitted to the controller. When the value exceeds the threshold, the controller controls the alarm lamp to give an early warning.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In the present invention, through the combined use of the fixing component and the meshing mechanism, the drill bit slowly drills the geotechnical around the deep pit, so that the drill bit and the first lead screw are fixed in the drill hole, which facilitates the quick fixing and installation of the equipment, increases its stability during use, and avoids the overall vibration of the equipment caused by external interference;

[0024] 2. In the present invention, through the coordinated use of the monitoring mechanism, a number of pressure detection sensors are driven to synchronously press against the inner wall of the deep pit, and the detected values are transmitted to the controller. When the values exceed the threshold, the controller controls the alarm lamp to give an early warning, and simultaneously performs pressure detection of multiple values, improving the timeliness of the early warning.

[0025] In summary, the present invention solves the problem of poor early warning effect of existing real-time early warning equipment for geotechnical engineering stability. Moreover, the overall structure is designed compactly, facilitating the effective fixed installation of the equipment. The simultaneous pressure detection of multiple values further improves the timeliness of the early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 is the front view of the present invention;

[0028] Figure 2 is the front sectional view of the present invention;

[0029] Figure 3 is the top view of the present invention;

[0030] Figure 4 is the Figure 2 enlarged view of part A in the present invention;

[0031] Figure 5 is the schematic diagram of the early warning method of the present invention;

[0032] Reference numerals in the drawings: circular chassis 1, fixing block 11, inclined plate 12, first wire barrel 13, first lead screw 14, drill bit 15, L-shaped plate 16, roller 17, controller 18, alarm lamp 19, lengthened gear 2, fixing ring 21, channel steel ring 22, external gear ring 23, plane gear ring 24, servo motor 25, driving gear 26, hollow cylinder 3, inner cylinder 31, second lead screw 32, second wire barrel 33, piston cylinder 34, piston 35, pressure detection sensor 36, piston rod 37, connecting rod 38, outer ring 4, sliding rod 41, sliding cylinder 42, slider 43, threaded ring 44, positioning ring 45, external threaded barrel 46, first rotating ring 47, long shaft 48, second rotating ring 49. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0034] Embodiment 1: This embodiment provides a real-time early warning device for the stability of geotechnical engineering. Refer to Figures 1-4 , specifically, it includes a circular chassis 1. The circular chassis 1 is a horizontally placed circular plate. A number of circular through holes arranged in a circular pattern are opened on the outer side of the top surface of the circular chassis 1. A vertically suspended lengthened gear 2 is inserted into each circular through hole. A fixing component is installed at the bottom end of each lengthened gear 2. A number of lengthened gears 2 are connected to the circular chassis 1 through a meshing mechanism;

[0035] A fixing through hole is opened in the middle of the circular chassis 1. A hollow cylinder 3 vertically penetrating and fixedly connected is inserted into the fixing through hole. A threaded ring 44 is concentrically fixedly connected to the top of the hollow cylinder 3. An inner cylinder 31 is vertically slidably connected to the middle and lower part of the hollow cylinder 3. A second lead screw 32 is concentrically rotatably connected to the middle of the inner bottom wall of the inner cylinder 31. A number of equally spaced second lead screw nuts 33 are sleeved on the second lead screw 32 and are threadedly connected. A number of monitoring mechanisms are provided on each second lead screw nut 33.

[0036] In the specific implementation process, as Figure 2 shown, an outer ring 4 is concentrically fixedly sleeved on the top of the outer ring surface of the hollow cylinder 3. A number of vertically fixedly connected sliding rods 41 are provided on the bottom surface of the outer ring 4. The bottom end of each sliding rod 41 is fixedly connected to the bottom surface of the circular chassis 1. A slidably connected sliding cylinder 42 is sleeved on the middle of each sliding rod 41. A slider 43 is provided on the inner side surface of each sliding cylinder 42. A number of vertically parallel rectangular sliding holes are opened in the middle and upper part of the outer ring surface of the hollow cylinder 3. Each slider 43 slidably penetrates through the corresponding rectangular sliding hole and is fixedly connected to the top of the inner cylinder 31; when the hollow cylinder 3 slides downward, it drives the slider 43 to slide downward along the rectangular sliding hole, and drives the sliding cylinder 42 to slide downward along the sliding rod 41, increasing the stability of the sliding of the hollow cylinder 3.

[0037] In the specific implementation process, as Figure 2 and Figure 4 shown, the monitoring mechanism includes a pressure detection sensor 36. A number of piston cylinders 34 that penetrate and are fixedly connected and are arranged in a circular pattern are provided on the inner wall of the inner cylinder 31 below the second lead screw nut 33. A piston 35 is slidably connected to the middle of each piston cylinder 34. A piston rod 37 that is slidably connected is inserted into the inner port of each piston cylinder 34. The inner end of each piston rod 37 is fixedly connected to the piston 35, and a pressure detection sensor 36 is provided on the other side surface of each piston 35. The model of the pressure detection sensor 36 is YH-45. A number of link rods 38 that are movably hinged and are arranged in a circular pattern are provided on the outer side surface of the second lead screw nut 33. The outer end of each link rod 38 is movably hinged to the outer end of the piston rod 37; the second lead screw nut 33 drives a number of link rods 38 to slowly descend. Through the hinge action, it drives the piston rod 37, the piston 35 and the pressure detection sensor 36 to slide outward along the piston cylinder 34, and drives the pressure detection sensor 36 to abut against the inner wall of the deep pit;

[0038] On the other side of the top surface of the circular chassis 1, there is a controller 18. The model of the controller 18 is AD4110-1BCPZ. On the front and rear sides of the circular chassis 1, there is a pair of warning lights 19. The model of the warning lights 19 is XL-DB. The signal output ends of several pressure detection sensors 36 are electrically connected to the signal input end of the controller 18 in a wired manner. The warning control end of the controller 18 is electrically connected to the warning receiving ends of a pair of warning lights 19. The inner wall pressure of the deep pit is detected in real time by the pressure detection sensors 36, and the detected values are transmitted to the controller 18. When the values exceed the threshold, the controller 18 controls the warning lights 19 to give a warning.

[0039] In the specific implementation process, as Figure 2 shown, at the top of the inner cylinder 31, there is a concentrically fixed positioning ring 45. Inside the positioning ring 45, there is a concentrically fixed bearing ring. An external thread cylinder 46 is inserted inside the bearing ring. The middle part of the external thread cylinder 46 passes through the thread ring 44 and is threadedly connected to the thread ring 44. And at the top of the external thread cylinder 46, there is a concentrically fixed first rotating ring 47. By driving the first rotating ring 47, the external thread cylinder 46 rotates spirally along the thread ring 44, and drives the inner cylinder 31 to slide down along the hollow cylinder 3.

[0040] In the middle of the inner top wall of the inner cylinder 31, there is a rotatably connected long shaft 48. The bottom end of the long shaft 48 is coaxially connected to the top of the second lead screw 32. The top end of the long shaft 48 passes through the inner top wall of the external thread cylinder 46 and is rotatably connected to the inner top wall of the external thread cylinder 46. And at the top end of the long shaft 48, there is a concentrically fixed second rotating ring 49. By driving the second rotating ring 49, the long shaft 48 and the second lead screw 32 rotate. The second lead screw 32 rotates spirally along the second lead screw barrel 33.

[0041] Embodiment 2: In Embodiment 1, there is also a problem that the circular chassis is not firmly fixed, which will affect the detected values of the pressure detection. Therefore, on the basis of Embodiment 1, this embodiment further includes:

[0042] In the specific implementation process, as Figure 2 and Figure 3As shown in the figure, several circularly arranged fixing blocks 11 are provided below the bottom surface of the circular chassis 1. The several fixing blocks 11 correspond to several circular through holes one by one. A pair of obliquely fixed inclined plates 12 are provided on both sides of each fixing block 11, and the top of each inclined plate 12 is fixedly connected to the bottom surface of the circular chassis 1; several vertically fixed L-shaped plates 16 are provided on the outer circumferential surface of the circular chassis 1, and a roller 17 connected by rolling is installed at the bottom of each L-shaped plate 16; the fixing assembly includes a first wire barrel 13 and a first lead screw 14. A vertically penetrating and fixedly connected first wire barrel 13 is inserted into the middle of each fixing block 11. A first lead screw 14 is coaxially connected to the bottom end of each lengthened gear 2. The middle of each first lead screw 14 penetrates through the corresponding first wire barrel 13 and is threadedly connected to the first wire barrel 13, and a drill bit 15 is coaxially connected to the bottom end of each first lead screw 14; the lengthened gear 2 drives the first lead screw 14 to perform spiral rotation along the first wire barrel 13, and the first lead screw 14 drives the drill bit 15 to spiral downward synchronously. The drill bit 15 slowly drills the rock and soil around the deep pit, so that the drill bit 15 and the first lead screw 14 are fixed in the drill hole.

[0043] In the specific implementation process, as Figure 2 and Figure 3 shown, the meshing mechanism includes a fixed ring 21 and an external gear ring 23. A concentrically fixed fixed ring 21 is provided on the top surface of the circular chassis 1, and the fixed ring 21 is located inside several circular through holes. A channel steel ring 22 connected by rotation is clamped on the fixed ring 21. An external gear ring 23 is concentrically fixed on the outer circumferential surface of the channel steel ring 22, and the external gear ring 23 is sequentially meshed with several lengthened gears 2; a flat gear ring 24 is concentrically fixed on the top surface of the channel steel ring 22. A servo motor 25 is provided on one side of the top surface of the circular chassis 1. The model of the servo motor 25 is ME-60-110-30-S0. A driving gear 26 is coaxially connected to the end of the motor shaft of the servo motor 25, and the driving gear 26 is meshed with the flat gear ring 24; the motor shaft of the servo motor 25 drives the driving gear 26 to rotate synchronously. The driving gear 26 meshes with the flat gear ring 24, the channel steel ring 22 and the external gear ring 23 to rotate along the fixed ring 21, and the external gear ring 23 meshes with and drives several lengthened gears 2 to rotate.

[0044] Embodiment 3: Refer to Figure 5 , specifically, the working principle and operation method of the present invention are as follows:

[0045] Step 1, dig a deep pit with a diameter slightly larger than the inner cylinder 31 in the rock and soil that needs to be warned, and push the roller 17 to move the circular chassis 1 above the deep pit so that the bottom of the inner cylinder 31 is directly opposite to the deep pit;

[0046] Step 2: Start the servo motor 25. The motor shaft of the servo motor 25 drives the driving gear 26 to rotate synchronously. The driving gear 26 meshes with the planar gear ring 24, the channel steel ring 22, and the external gear ring 23 to rotate along the fixed ring 21. The external gear ring 23 meshes with and drives a number of extended gears 2 to rotate;

[0047] Step 3: The extended gear 2 drives the first lead screw 14 to rotate spirally along the first lead screw barrel 13. The first lead screw 14 drives the drill bit 15 to spiral downward synchronously. The drill bit 15 slowly drills into the rock and soil around the deep pit, so that the drill bit 15 and the first lead screw 14 are fixed in the drill hole, and the operation of the servo motor 25 is stopped;

[0048] Step 4: Drive the external thread barrel 46 to rotate spirally along the thread ring 44 through the first rotating ring 47, drive the inner cylinder 31 to slide downward along the hollow cylinder 3, drive the slider 43 to slide downward along the rectangular sliding hole, drive the sliding cylinder 42 to slide downward along the sliding rod 41, and drive the middle and lower part of the inner cylinder 31 to penetrate into the deep pit;

[0049] Step 5: Drive the long shaft 48 and the second lead screw 32 to rotate through the second rotating ring 49. The second lead screw 32 rotates spirally along the second lead screw barrel 33. The second lead screw barrel 33 drives a number of connecting rods 38 to slowly descend. Through the hinge action, drive the piston rod 37, the piston 35, and the pressure detection sensor 36 to slide outward along the piston cylinder 34, and drive the pressure detection sensor 36 to press against the inner wall of the deep pit;

[0050] Step 6: Start the controller 18 and set the pressure threshold. The pressure detection sensor 36 detects the inner wall pressure of the deep pit in real time and transmits the detected value to the controller 18. When the value exceeds the threshold, the controller 18 controls the alarm lamp 19 to give an early warning.

[0051] The present invention solves the problem of poor early warning effect of existing real-time early warning equipment for geotechnical engineering stability, and the overall structure design is compact, which facilitates the effective fixed installation of the equipment, synchronously performs multi-value pressure detection, and further improves the timeliness of early warning.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. Real-time early warning device for geotechnical engineering stability, including a circular chassis (1), characterized in that: On the outer side of the top surface of the circular chassis (1), a number of circular through holes are provided. Inside each circular through hole, an extended gear (2) is inserted. At the bottom end of each extended gear (2), a fixing component is installed. The several extended gears (2) are connected to the circular chassis (1) through an engaging mechanism; in the middle of the circular chassis (1), a fixing through hole is provided. Inside the fixing through hole, a hollow cylinder (3) is inserted. At the top of the hollow cylinder (3), there is a threaded ring (44). In the middle and lower part of the hollow cylinder (3), there is an inner cylinder (31). In the middle of the inner bottom wall of the inner cylinder (31), there is a second lead screw (32). A number of second lead screw nuts (33) are sleeved on the second lead screw (32). On each second lead screw nut (33), a number of monitoring mechanisms are provided; Below the bottom surface of the circular chassis (1), a number of fixing blocks (11) are provided. The several fixing blocks (11) correspond to the several circular through holes one by one. On both sides of each fixing block (11), a pair of inclined plates (12) are provided. The top of each inclined plate (12) is fixedly connected to the bottom surface of the circular chassis (1); on the outer circumferential surface of the circular chassis (1), a number of L-shaped plates (16) are provided. At the bottom surface of each L-shaped plate (16), a roller (17) is installed.

2. The real-time early warning device for geotechnical engineering stability according to claim 1, characterized in that: The fixing component includes a first lead screw nut (13) and a first lead screw (14). In the middle of each fixing block (11), a first lead screw nut (13) is inserted. At the bottom end of each extended gear (2), a first lead screw (14) is provided. The middle of each first lead screw (14) penetrates through the corresponding first lead screw nut (13) and is threadedly connected to the first lead screw nut (13). And at the bottom end of each first lead screw (14), a drill bit (15) coaxial with it is provided.

3. The real-time warning device for geotechnical engineering stability according to claim 1, characterized in that: The engaging mechanism includes a fixing ring (21) and an external gear ring (23). On the top surface of the circular chassis (1), a fixing ring (21) is provided, and the fixing ring (21) is located inside the several circular through holes. A channel steel ring (22) is clamped on the fixing ring (21). An external gear ring (23) is sleeved on the outer circumferential surface of the channel steel ring (22). The external gear ring (23) is sequentially meshed and connected with the several extended gears (2).

4. The real-time early warning device for geotechnical engineering stability according to claim 3, characterized in that: On the top surface of the channel steel ring (22), there is a planar gear ring (24). On one side of the top surface of the circular chassis (1), a servo motor (25) is provided. At the end of the motor shaft of the servo motor (25), a driving gear (26) is sleeved. The driving gear (26) is meshed and connected with the planar gear ring (24).

5. The real-time early warning device for geotechnical engineering stability according to claim 1, characterized in that: On the top of the outer circumferential surface of the hollow cylinder (3), an outer ring (4) is sleeved. At the bottom surface of the outer ring (4), a number of sliding rods (41) are provided. The bottom end of each sliding rod (41) is fixedly connected to the bottom surface of the circular chassis (1). In the middle of each sliding rod (41), a sliding cylinder (42) is sleeved. On the inner side surface of each sliding cylinder (42), a slider (43) is provided. On the middle and upper part of the outer circumferential surface of the hollow cylinder (3), a number of vertically parallel rectangular sliding holes are provided. Each slider (43) slides through the corresponding rectangular sliding hole and is fixedly connected to the top of the inner cylinder (31).

6. The real-time warning device for geotechnical engineering stability according to claim 1, wherein: The monitoring mechanism includes a pressure detection sensor (36). A number of piston cylinders (34) are provided on the inner wall of the inner cylinder (31) below the second wire cylinder (33). A piston (35) is provided in the middle of each piston cylinder (34). A piston rod (37) is inserted into the inner end port of each piston cylinder (34). The inner end of each piston rod (37) is fixedly connected to the piston (35), and a pressure detection sensor (36) is provided on the other side of each piston (35). A number of connecting rods (38) are provided on the outer side of the second wire cylinder (33). The outer end of each connecting rod (38) is movably hinged to the outer end of the piston rod (37); on the other side of the top surface of the circular chassis (1), a controller (18) is provided. A pair of warning lights (19) are provided on the front and rear sides of the circular chassis (1). The signal output ends of a number of pressure detection sensors (36) are electrically connected to the signal input end of the controller (18) in a wired manner. The warning control end of the controller (18) is electrically connected to the warning receiving end of a pair of warning lights (19).

7. The real-time early warning device for geotechnical engineering stability according to claim 1, characterized in that: A positioning ring (45) is provided at the top of the inner cylinder (31). A bearing ring is provided inside the positioning ring (45). An external thread cylinder (46) is inserted into the bearing ring. The middle of the external thread cylinder (46) penetrates through the thread ring (44) and is threadedly connected to the thread ring (44), and a first rotating ring (47) is provided at the top of the external thread cylinder (46).

8. The real-time warning device for geotechnical engineering stability according to claim 7, characterized in that: A rotatably connected long shaft (48) is inserted into the middle of the inner top wall of the inner cylinder (31). The bottom end of the long shaft (48) is coaxially connected to the top of the second lead screw (32). The top end of the long shaft (48) penetrates through the inner top wall of the external thread cylinder (46) and is rotatably connected to the inner top wall of the external thread cylinder (46), and a second rotating ring (49) is concentrically and fixedly connected to the top end of the long shaft (48).

9. The warning method of the real-time warning device for geotechnical engineering stability according to any one of claims 1-8, characterized in that, It includes the following steps: Step 1: Dig a deep pit with a diameter slightly larger than the inner cylinder (31) in the rock and soil that needs to be warned. Push the roller (17) to move the circular chassis (1) above the deep pit so that the bottom of the inner cylinder (31) is facing the deep pit directly; Step 2: Start the servo motor (25). The motor shaft of the servo motor (25) drives the driving gear (26) to rotate synchronously. The driving gear (26) meshes with the planar gear ring (24), the channel steel ring (22), and the external gear ring (23) to rotate along the fixed ring (21). The external gear ring (23) meshes to drive a number of lengthened gears (2) to rotate; Step 3: The lengthened gear (2) drives the first lead screw (14) to rotate spirally along the first lead screw cylinder (13). The first lead screw (14) drives the drill bit (15) to spiral downward synchronously. The drill bit (15) slowly drills the rock and soil around the deep pit so that the drill bit (15) and the first lead screw (14) are fixed in the drill hole. Stop the operation of the servo motor (25). Step Four: Drive the external thread cylinder (46) to rotate spirally along the thread ring (44) through the first rotating ring (47), drive the inner cylinder (31) to slide downward along the hollow cylinder (3), drive the slider (43) to slide downward along the rectangular sliding hole, drive the sliding cylinder (42) to slide downward along the sliding rod (41), and drive the middle and lower part of the inner cylinder (31) to penetrate into the deep pit; Step Five: Drive the long shaft (48) and the second lead screw (32) to rotate through the second rotating ring (49). The second lead screw (32) rotates spirally along the second lead screw cylinder (33). The second lead screw cylinder (33) drives a number of connecting rods (38) to slowly descend. Through the hinge action, drive the piston rod (37), the piston (35) and the pressure detection sensor (36) to slide outward along the piston cylinder (34), and drive the pressure detection sensor (36) to abut against the inner wall of the deep pit; Step Six: Start the controller (18) and set the pressure threshold. The pressure detection sensor (36) detects the inner wall pressure of the deep pit in real time and transmits the detected value to the controller (18). When the value exceeds the threshold, the controller (18) controls the alarm lamp (19) to give an early warning.

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