A monitoring device for karst groundwater level

Abstract

The present application belongs to the technical field of groundwater detection sampling, and particularly relates to a karst groundwater level monitoring device, which comprises a depth sensing type unlocking mechanism, a split type pressure sensing sampling mechanism, a trouble escaping advancing mechanism and an induction control assembly. The depth sensing type unlocking mechanism comprises a top sleeve and a water pressure floating assembly. The water pressure floating assembly is slidably arranged in the top sleeve. The trouble escaping advancing mechanism is annularly and uniformly arranged outside the split type pressure sensing sampling mechanism. The present application is locked by the locking strip before reaching the maximum depth through the floating induction mode. In addition, the problem of the valve assembly being mistakenly opened under the impact of flowing water during the drilling process can be avoided by the blocking of the locking strip.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of groundwater detection sampling, and particularly relates to a karst underground water level monitoring device. BACKGROUND

[0002] The monitoring of karst underground water mainly includes water level and water quality, since the karst underground water mostly exists in rugged rock crevices, it is difficult to measure by using a traditional water level gauge; therefore, the scheme changes the thinking, first samples the water body at a specific depth, and then judges the distribution position in the rock layer according to the water quality composition (for still water, the element content in the water body at different rock layers has a specific difference), and further judges the water level height; in the sampling process, in order not to cause damage to the underground structure, and also to avoid the interference and pollution of the surrounding structure damage to the sample water body, the karst underground water generally will not be sampled by the drilling method, but will be placed along the stone crevice, and the water body at different depths is sampled after the underground water pool is found.

[0003] In real working conditions, the stone crevice is not always vertical and spacious, and the sampling device is easy to be stuck in the narrow and flat part of the stone crevice, even if the track is increased, since the stone wall is often humid and smooth, and the sampling device itself is relatively light, it is difficult to provide enough friction, so the escape ability is still not strong.

[0004] In addition, for sampling at different depths, a plurality of electromagnetic valves need to be arranged, and a plurality of electromagnetic valves are inserted in the extremely limited volume, which poses not small challenges to the cost, product design, stability and the like. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the application provides a karst underground water level monitoring device, in order to simplify the structure and operation steps, the application first proposes a split type pressure sensing sampling mechanism, through sampling valve springs of different specifications, each group of valve assembly can have different opening depths, so that the device can sample the water body at different depths through different split type pressure sensing sampling mechanisms when the device is stationary at different depths of the water body.

[0006] Since the sampling device will pass through the corresponding depth in the process of diving and floating, in order to control the variables as much as possible during the sampling process, most of the sampling requires to be completed at one time, in order to avoid the sample confusion problem caused by repeated opening, the application further proposes a depth sensing type unlocking mechanism, through the buoyancy sensing mode, the split type pressure sensing sampling mechanism is locked by the locking strip before reaching the maximum depth; in addition, through the blocking of the locking strip, the problem of accidental opening of the valve assembly under the impact of flowing water during the drilling process can also be avoided.

[0007] In order to improve the escape performance of the device, the elastic support assembly is further provided, and through the elastic support legs capable of being elastically deformed, greater extrusion force and friction force between the track and the stone wall can be obtained when the device passes through the narrow gap, and the possibility of slipping is reduced.

[0008] The technical scheme adopted by the present application is as follows: the present application provides a karst underground water level monitoring device, which comprises a depth sensing type unlocking mechanism, a split type pressure sensing sampling mechanism, an escape traveling mechanism and an induction control assembly, the depth sensing type unlocking mechanism comprises a top sleeve and a water pressure floating assembly, the water pressure floating assembly is slidably arranged in the top sleeve, and the escape traveling mechanism is annularly and uniformly arranged outside the split type pressure sensing sampling mechanism.

[0009] Further, the split type pressure sensing sampling mechanism is arranged in an array and comprises a deflectable storage assembly, a valve assembly and a depth sensing assembly, the valve assembly is arranged in the deflectable storage assembly, and the depth sensing assembly is arranged in the valve assembly.

[0010] As a further preferred embodiment of the present application, the deflectable storage assembly comprises a sampling pipe, and the depth sensing assembly comprises a sampling valve spring, the elastic force of the sampling valve spring and the water pressure outside the valve assembly jointly control the opening and closing of the valve assembly, and the preloaded elastic force of the sampling valve spring in each split type pressure sensing sampling mechanism is different.

[0011] Each group of split type pressure sensing sampling mechanisms has different opening depth intervals, so that the device can be placed in different water depth areas to automatically control the sampling work progress, and compared with the traditional active control mode in which each sampling box is provided with an electric valve, the structure, spare parts and operation steps are greatly simplified.

[0012] As a preferred embodiment, the valve assembly comprises a fixed valve seat and a sliding valve core, the fixed valve seat is fixedly connected to the sampling pipe, the sliding valve core is slidably arranged in the sampling pipe, and the fixed valve seat and the sliding valve core are provided with flow channels that are not coincident in the axial direction, and the valve assembly is closed when the fixed valve seat and the sliding valve core are in contact.

[0013] The depth sensing assembly further comprises a valve core sliding rod, the valve core sliding rod is slidably arranged in the fixed valve seat, one end of the valve core sliding rod is fixedly connected to the sliding valve core, the other end of the valve core sliding rod is provided with a flange portion, the sampling valve spring is arranged between the flange portion and the fixed valve seat, and the valve assembly is closed when the flange portion and the fixed valve seat are in contact.

[0014] The fixed valve seat and the sliding valve core are provided with flow channels, and when the sliding valve core and the flange portion are separated from the fixed valve seat, the valve assembly is opened, and when either the sliding valve core or the flange portion is in contact with the fixed valve seat, the flow channel on the fixed valve seat is blocked, so that the valve assembly is closed.

[0015] Further, the induction control assembly comprises a circuit module, and a water pressure sensor is arranged in the circuit module.

[0016] Preferably, the water pressure floating assembly comprises an unlocking spring and a sliding floating block, the sliding floating block is slidingly arranged in the top sleeve, and the unlocking spring is arranged between the bottom of the top sleeve and the sliding floating block.

[0017] The sliding floating block can slide with the locking strip according to the depth of the device, which can ensure the closure of the valve assembly during the diving and drilling process of the device, and can unlock the valve assembly when it reaches the specified depth, so as to achieve the technical purpose that the split pressure sensing sampling mechanism does not sample when diving and samples when floating.

[0018] Further preferably, the top sleeve is provided with a longitudinal sliding groove, the water pressure floating assembly further comprises a locking strip, the locking strip is slidingly arranged in the longitudinal sliding groove, and a plurality of limiting openings matched with the sampling pipe are arranged on the locking strip.

[0019] The locking strip can rigidly block the valve assembly during the diving of the device, so as to avoid the problem that the valve assembly is opened twice and the sample is mixed when the valve assembly is opened in advance when diving through the corresponding sampling depth of the split pressure sensing sampling mechanism.

[0020] Preferably, the deflectable storage assembly further comprises a sampling box and a hollow connecting piece, the sampling box and the hollow connecting piece are arranged alternately, the top sleeve is arranged on the sampling box, the hollow connecting piece can be deformed itself, the sampling pipe is fixedly connected to the inner top of the sampling box, the end of the sampling pipe is provided with a flange part, and the flange part is slidingly arranged in the locking strip.

[0021] Further, the escape running mechanism comprises an elastic supporting assembly and a running assembly, the elastic supporting assembly comprises a fixed seat, elastic legs and a guide supporting plate, the fixed seat is fixedly connected to the outer wall of the deflectable storage assembly, and the elastic legs are arranged between the fixed seat and the guide supporting plate.

[0022] The split pressure sensing sampling mechanism can be twisted in a small range to improve the passability when drilling, and the locking strip and the guide supporting plate will be deformed in a small range, but the deformation range will not cause the split pressure sensing sampling mechanism to be unlocked in advance, nor will it cause the track to be stuck.

[0023] When the device is trapped in the stone seam, the contact pressure between the track and the stone wall can be increased under the elastic force of the elastic legs, so as to reduce the possibility of slipping due to insufficient friction when the track moves, and improve the escape ability of the device.

[0024] As preferred, the traveling assembly comprises an outer rotor motor and a track, the outer rotor motor is arranged at the end of the guide support plate, and the outer rotor motor is in rolling contact with the track.

[0025] As further preferred of the present application, the induction control assembly further comprises a fish-eye lens and a cable, the circuit module and the fish-eye lens are arranged below the split pressure sensing sampling mechanism, and the cable is capable of driving and signal transmission of the fish-eye lens, the circuit module and the outer rotor motor.

[0026] The present application has the following beneficial effects by adopting the above structure:

[0027] (1) Each group of split pressure sensing sampling mechanisms has different opening depth intervals, so that the sampling work progress can be automatically controlled by placing the device in different water depth areas. Compared with the traditional active control mode of setting electric valves in each sampling box, the structure, parts and operation steps are greatly simplified.

[0028] (2) The flange part, the fixed valve seat and the sliding valve core are all provided with flow channels. When the sliding valve core and the flange part are separated from the fixed valve seat, the valve assembly is opened. When either the sliding valve core or the flange part is attached to the fixed valve seat, the flow channels on the fixed valve seat are blocked, thereby closing the valve assembly.

[0029] (3) The sliding float can slide with the locking strip according to the depth of the device. It can ensure the closure of the valve assembly during the diving and drilling process of the device, and can unlock the valve assembly when it is lowered to the specified depth, achieving the technical purpose of not sampling when diving and sampling when floating.

[0030] (4) The locking strip can rigidly stop the valve assembly during the diving of the device, thereby avoiding the problem of the valve assembly opening twice and the sample being mixed due to the valve assembly opening too early when diving through the corresponding sampling depth of the split pressure sensing sampling mechanism.

[0031] (5) The split pressure sensing sampling mechanism can be twisted slightly to improve the passability during drilling. In this process, the locking strip and the guide support plate will deform slightly, but this deformation will not cause the split pressure sensing sampling mechanism to be unlocked too early, nor will it cause the track to be stuck.

[0032] (6) When the device is trapped in a stone seam, the contact pressure between the track and the stone wall can be increased under the elastic force of the elastic leg, thereby reducing the possibility of slipping due to insufficient friction when the track moves, and improving the escape ability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A perspective view of a karst groundwater level monitoring device according to the present application;

[0034] Figure 2 A front view of a karst groundwater level monitoring device according to the present application;

[0035] Figure 3 A left view of a karst groundwater level monitoring device according to the present application;

[0036] Figure 4 A top view of a karst groundwater level monitoring device according to the present application;

[0037] Figure 5 A sectional view along the cutting line A-A in the device; Figure 2

[0038] A sectional view along the cutting line B-B in the device; Figure 6 Figure 3 A sectional view along the cutting line C-C in the device;

[0039] Figure 7 Figure 6 A half-sectional structural schematic view of a karst groundwater level monitoring device according to the present application;

[0040] Figure 8 A half-sectional structural schematic view of a karst groundwater level monitoring device according to the present application;

[0041] Figure 9 A partial enlarged view of position I in the device; Figure 6

[0042] A partial enlarged view of position II in the device; Figure 10 Figure 7 A partial enlarged view of position II in the device;

[0043] Figure 11 A schematic view of the state of the device in a water environment;

[0044] Figure 12 A schematic view of the division of different sampling depths.

[0045] ​​​Wherein, 1, depth induction type unlocking mechanism, 2, split type pressure sensing sampling mechanism, 3, escape travel mechanism, 4, induction control assembly, 5, top sleeve, 6, water pressure floating assembly, 7, longitudinal sliding groove, 8, unlocking spring, 9, sliding float, 10, locking strip, 11, limit port, 12, deflectable storage assembly, 13, valve assembly, 14, depth induction assembly, 15, sampling box, 16, hollow connecting piece, 17, sampling tube, 18, fixed valve seat, 19, sliding valve core, 20, valve core slide rod, 21, sampling valve spring, 22, flange part, 23, elastic support assembly, 24, travel assembly, 25, fixed seat, 26, elastic leg, 27, guide support plate, 28, outer rotor motor, 29, track, 30, circuit module, 31, fisheye lens, 32, cable, 33, flange part.

[0046] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0049] As Figures 1-10 shown, the present application proposes a monitoring device for karst groundwater level, comprising a depth induction type unlocking mechanism 1, a split type pressure sensing sampling mechanism 2, an escape travel mechanism 3 and an induction control assembly 4, the depth induction type unlocking mechanism 1 comprises a top sleeve 5 and a water pressure floating assembly 6, the water pressure floating assembly 6 is slidingly arranged in the top sleeve 5, the escape travel mechanism 3 is arranged in a ring shape and uniformly distributed outside the split type pressure sensing sampling mechanism 2;

[0050] The inductive control assembly 4 further comprises a fish-eye lens 31 and a cable 32, the circuit module 30 and the fish-eye lens 31 are arranged below the split pressure sampling mechanism 2, and the cable 32 can drive and transmit signals to the fish-eye lens 31, the circuit module 30 and the outer rotor motor 28.

[0051] The split pressure sampling mechanism 2 is arranged in an array and comprises a deflectable storage assembly 12, a valve assembly 13 and a depth induction assembly 14, the valve assembly 13 is arranged in the deflectable storage assembly 12, and the depth induction assembly 14 is arranged in the valve assembly 13.

[0052] The deflectable storage assembly 12 comprises a sampling pipe 17, and the depth induction assembly 14 comprises a sampling valve spring 21, the elastic force of the sampling valve spring 21 and the water pressure outside the valve assembly 13 jointly control the opening and closing of the valve assembly 13, and the preloaded elastic force of the sampling valve spring 21 in each group of split pressure sampling mechanisms 2 is different.

[0053] Each group of split pressure sampling mechanisms 2 has a different opening depth interval, so that the device can be placed in different water depth areas to automatically control the sampling work progress. Compared with the traditional active control mode in which each sampling box is provided with an electric valve, the structure, spare parts and operation steps are greatly simplified.

[0054] The valve assembly 13 comprises a fixed valve seat 18 and a sliding valve core 19, the fixed valve seat 18 is fixedly connected in the sampling pipe 17, the sliding valve core 19 is slidingly arranged in the sampling pipe 17, and the fixed valve seat 18 and the sliding valve core 19 are provided with axial non-coincident flow channels, and the valve assembly 13 is closed when the fixed valve seat 18 and the sliding valve core 19 are in contact.

[0055] The depth induction assembly 14 further comprises a valve core sliding rod 20, the valve core sliding rod 20 is slidingly arranged in the fixed valve seat 18, one end of the valve core sliding rod 20 is fixedly connected to the sliding valve core 19, the other end of the valve core sliding rod 20 is provided with a flange portion 22, the sampling valve spring 21 is arranged between the flange portion 22 and the fixed valve seat 18, and the valve assembly 13 is closed when the flange portion 22 and the fixed valve seat 18 are in contact.

[0056] The flange portion 22, the fixed valve seat 18 and the sliding valve core 19 are all provided with flow channels, when the sliding valve core 19 and the flange portion 22 are both separated from the fixed valve seat 18, the valve assembly 13 is opened, and when either the sliding valve core 19 or the flange portion 22 is in contact with the fixed valve seat 18, the flow channel on the fixed valve seat 18 can be blocked, so that the valve assembly 13 is closed.

[0057] The inductive control assembly 4 comprises a circuit module 30, and the circuit module 30 is provided with a water pressure sensor.

[0058] The water pressure floating assembly 6 comprises an unlocking spring 8 and a sliding floating block 9, the sliding floating block 9 is slidingly arranged in the top sleeve 5, and the unlocking spring 8 is arranged between the bottom of the top sleeve 5 and the sliding floating block 9.

[0059] The sliding floating block 9 can slide with the locking strip 10 according to the depth of the device, which can ensure the closure of the valve assembly 13 during the diving and drilling process of the device, and can unlock each group of valve assemblies 13 when descending to the specified depth, so as to achieve the technical purpose that the split pressure sensing sampling mechanism 2 does not sample when diving and samples when floating.

[0060] The top sleeve 5 is provided with a longitudinal sliding groove 7, and the water pressure floating assembly 6 further comprises a locking strip 10, the locking strip 10 is slidingly arranged in the longitudinal sliding groove 7, and a plurality of limiting openings 11 matched with the sampling pipe 17 are arranged on the locking strip 10.

[0061] The locking strip 10 can rigidly block the valve assembly 13 during the diving of the device, so as to avoid the problem that the valve assembly 13 is opened twice and the sample is confused when the valve assembly 13 is opened in advance when diving through the corresponding sampling depth of the split pressure sensing sampling mechanism 2.

[0062] The deflectable storage assembly 12 further comprises a sampling box 15 and a hollow connecting piece 16, the sampling box 15 and the hollow connecting piece 16 are arranged alternately, the top sleeve 5 is arranged on the sampling box 15, the hollow connecting piece 16 can be deformed itself, the sampling pipe 17 is fixedly connected to the inner top of the sampling box 15, and the end of the sampling pipe 17 is provided with a flange portion 33, which is slidingly arranged in the locking strip 10.

[0063] The escape traveling mechanism 3 comprises an elastic support assembly 23 and a traveling assembly 24, the elastic support assembly 23 comprises a fixed seat 25, elastic legs 26 and a guide support plate 27, the fixed seat 25 is fixedly connected to the outer wall of the deflectable storage assembly 12, and the elastic legs 26 are arranged between the fixed seat 25 and the guide support plate 27.

[0064] The split pressure sensing sampling mechanism 2 can be twisted in a small range as a whole to adapt to the passability during the drilling process, and the locking strip 10 and the guide support plate 27 will be deformed in a small range correspondingly, but the deformation range will not cause the split pressure sensing sampling mechanism 2 to be unlocked in advance, nor will it cause the track 29 to be stuck.

[0065] When the device is trapped in the stone seam, the contact pressure between the track 29 and the stone wall can be increased under the elastic force of the elastic legs 26, so as to reduce the possibility of slipping of the track 29 due to insufficient friction when moving, and improve the escape ability of the device.

[0066] The traveling assembly 24 includes an outer rotor motor 28 and a track 29, the outer rotor motor 28 is arranged at the end of the guide support plate 27, and the shell of the outer rotor motor 28 and the track 29 are in rolling contact.

[0067] As shown in Figure 11 The cable 32 connects the device with the terminal equipment on the ground surface, and the depth of the device in the water body can be changed by releasing and recovering the cable 32. Since the gravity center of the device is located below, the device is in a vertical direction in the water body.

[0068] As shown in Figure 12 The vertical axis represents the depth of water, and the vertical solid lines a, b, and c represent the sampling depths of different split pressure sensing sampling mechanisms 2. Each vertical solid line has a vertical dashed line on each side, wherein the left vertical dashed line represents the critical depth when the flange part 22 and the fixed valve seat 18 are attached, the right vertical dashed line represents the critical depth when the sliding valve core 19 and the fixed valve seat 18 are attached, and the region between the two represents the opening region of the valve assembly 13. The vertical dot-dash line represents the critical depth when the water pressure floating assembly 6 is unlocked, and the position is the same as the rightmost vertical solid line.

[0069] In specific use, first, the user needs to put the device into the stone gap so that it reaches the sampled water body through the gap. The cable 32 is used to connect the sampling equipment and the terminal on the ground surface. The cable 32 not only provides tension, controls the release and recovery of the device, but also transmits power and data signals.

[0070] When the cable 32 is continuously and slowly released, the device can fall along the stone gap. When passing through the horizontal gap, the rotation of the outer rotor motor 28 with the track 29 can drive the device to move, thereby making up for the defect that the cable 32 cannot provide thrust. When the two tracks 29 have a speed difference, the device can also be turned. Through the fisheye lens 31 combined with infrared night vision or a fill light, a larger range of forward field of view can be monitored.

[0071] When passing through a gap slightly smaller than the outer contour of the escape traveling mechanism 3, the elastic legs 26 will be deformed by extrusion. Compared with the rigid traveling assembly 24, the extrusion force and friction between the track 29 and the stone wall can be significantly increased, thereby reducing the possibility of slipping and improving the passability of the device.

[0072] In the initial state, the unlocking spring 8 is in a balanced state, so the sliding valve core 19 is blocked inside the sampling pipe 17 by the locking strip 10. At this time, no matter how the external pressure is, the valve assembly 13 always remains closed, which can avoid the accidental opening of the valve assembly 13 during diving and drilling.

[0073] After the device enters the target water body through the stone crevice, the cable 32 is continuously released slowly to make the device descend to a deeper position, and in this process, the water pressure sensor in the circuit module 30 can sense and feedback the current depth.

[0074] With the diving of the device, the sliding float 9 overcomes the elastic force of the unlocking spring 8 and slides upward relative to the top sleeve 5, and slides with the locking strip 10, when the device reaches the deepest sampling depth, the limiting port 11 has just slid to the sampling tube 17, after losing the stop of the locking strip 10, the sliding valve core 19 in the sampling depth deepest split type pressure sensing sampling mechanism 2 extends under the elastic force of the sampling valve spring 21, after the sliding valve core 19 is separated from the fixed valve seat 18, whether the flange part 22 is tightly attached to the fixed valve seat 18 from the inside or not, the outside water can push the flange part 22 to enter the sampling box 15, and the air in the sampling box 15 is discharged to the outside through the one-way exhaust valve, until the sampling box 15 is filled with liquid, therefore the device only needs to be static at this position for a few minutes, and the water body sampling at this depth is completed.

[0075] Then the device is pulled up to the next slightly shallow sampling depth by the recovery cable 32 and is static for a few minutes, and the water body sampling at this depth is completed; after the split type pressure sensing sampling mechanism 2 that has completed sampling leaves its own sampling depth, because the internal water pressure is always greater than the water pressure in the subsequent surrounding environment, the corresponding valve assembly 13 always remains closed.

[0076] After all the sampling is completed, the device is recovered according to the steps opposite to the release.

[0077] It should be noted that the relational terms herein such as first and second are used only to differentiate one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles, or apparatuses that include a series of elements not only include those elements, but also include other elements not explicitly listed, or other elements inherent to such processes, methods, articles, or apparatuses.

[0078] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which shall belong to the protection scope of the present application.

Claims

1. A device for monitoring karst groundwater levels, characterized in that: It includes a depth-sensing unlocking mechanism (1), a split-type pressure-sensing sampling mechanism (2), an escape and travel mechanism (3), and a sensing control component (4). The depth-sensing unlocking mechanism (1) includes a top sleeve (5) and a water pressure floating component (6). The water pressure floating component (6) is slidably disposed in the top sleeve (5). The escape and travel mechanism (3) is evenly distributed in a ring outside the split-type pressure-sensing sampling mechanism (2). The split pressure-sensitive sampling mechanism (2) array is provided with several groups. The split pressure-sensitive sampling mechanism (2) includes a deflectable storage component (12), a valve component (13) and a depth sensing component (14). The valve component (13) is located in the deflectable storage component (12), and the depth sensing component (14) is located in the valve component (13). The deflectable storage component (12) includes a sampling tube (17), and the depth sensing component (14) includes a sampling valve spring (21). The spring force of the sampling valve spring (21) and the water pressure outside the valve component (13) jointly control the opening and closing of the valve component (13). The preload spring force of the sampling valve spring (21) in each component of the split pressure-sensitive sampling mechanism (2) is different. The water pressure floating assembly (6) includes an unlocking spring (8) and a sliding float (9). The sliding float (9) is slidably disposed in the top sleeve (5), and the unlocking spring (8) is disposed between the bottom of the top sleeve (5) and the sliding float (9). The top sleeve (5) is provided with a longitudinal sliding groove (7), and the water pressure floating assembly (6) also includes a locking strip (10). The locking strip (10) is engaged and slidably disposed in the longitudinal sliding groove (7), and the locking strip (10) is provided with an array of limiting ports (11) that match the sampling tube (17). The deflectable storage component (12) also includes a sampling box (15) and a hollow connector (16). The sampling box (15) and the hollow connector (16) are alternately arranged. The top sleeve (5) is provided on the sampling box (15). The hollow connector (16) itself can deform. The sampling tube (17) is fixed to the inner top of the sampling box (15). The end of the sampling tube (17) is provided with a flange (33). The flange (33) is slidably disposed in the locking strip (10).

2. The monitoring device for karst groundwater level according to claim 1, characterized in that: The valve assembly (13) includes a fixed valve seat (18) and a sliding valve core (19). The fixed valve seat (18) is fixed in the sampling tube (17), and the sliding valve core (19) is slidably disposed in the sampling tube (17). The fixed valve seat (18) and the sliding valve core (19) are provided with axially non-overlapping flow channels. When the fixed valve seat (18) and the sliding valve core (19) are in contact, the valve assembly (13) is closed.

3. The monitoring device for karst groundwater level according to claim 2, characterized in that: The depth sensing component (14) also includes a valve core slide rod (20), which is slidably disposed in a fixed valve seat (18). One end of the valve core slide rod (20) is fixed to a sliding valve core (19), and the other end of the valve core slide rod (20) is provided with a flange (22). The sampling valve spring (21) is disposed between the flange (22) and the fixed valve seat (18). When the flange (22) and the fixed valve seat (18) are in contact, the valve assembly (13) is closed.

4. The monitoring device for karst groundwater level according to claim 3, characterized in that: The sensing control component (4) includes a circuit module (30), in which a water pressure sensor is provided.

5. The monitoring device for karst groundwater level according to claim 4, characterized in that: The escape and travel mechanism (3) includes an elastic support component (23) and a travel component (24). The elastic support component (23) includes a fixed base (25), elastic legs (26) and a guide support plate (27). The fixed base (25) is fixed to the outer wall of the deflectable storage component (12), and the elastic legs (26) are arranged in an array between the fixed base (25) and the guide support plate (27).

6. The monitoring device for karst groundwater level according to claim 5, characterized in that: The traveling assembly (24) includes an outer rotor motor (28) and a track (29). The outer rotor motor (28) is rotatably mounted at the end of the guide support plate (27). The outer casing of the outer rotor motor (28) and the track (29) are in rolling contact.

7. A monitoring device for karst groundwater level according to claim 6, characterized in that: The sensing control component (4) also includes a fisheye lens (31) and a cable (32). The circuit module (30) and the fisheye lens (31) are located below the split pressure-sensitive sampling mechanism (2). The cable (32) can drive and transmit signals to the fisheye lens (31), the circuit module (30) and the external rotor motor (28).

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