Hydrogeological survey device

Abstract

The invention relates to the technical field of address surveying equipment, and particularly discloses a hydrogeological surveying device which comprises an unwinding mechanism, a suspension rope and a sampling mechanism, the sampling mechanism comprises a connecting plate, a sampling ring cylinder and a control assembly, a detection space is formed in the inner side of the sampling ring cylinder, and the connecting plate is fixedly connected with one end of the sampling ring cylinder; a liquid sensor is fixedly arranged in the detection space, the unwinding mechanism is connected with the connecting plate through a suspension rope, a collection cavity is formed in the sampling ring cylinder, and scales are arranged on the suspension rope; a first air pressure hole and a second air pressure hole penetrating through the plate thickness are formed in the connecting plate, the first air pressure hole is communicated with the detection space, a sampling hole is formed in the end, away from the connecting plate, of the sampling ring cylinder, the second air pressure hole and the sampling hole are both communicated with the collecting cavity, and the control assembly is used for controlling the sampling hole and the second air pressure hole to be opened or closed at the same time. The device has high accuracy in measuring the height of the underground water level.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geological exploration equipment, and in particular to a hydrogeological exploration device. BACKGROUND

[0002] Hydrogeological exploration, also known as hydrogeological surveying, refers to hydrogeological investigation and research work for identifying the hydrogeological conditions of an area. It aims to understand the causes, distribution, and movement rules of groundwater and surface water. It provides a basis for rational exploitation and utilization of water resources, correct design and construction of foundation and piling engineering, and identification of underground water burial conditions and erosion, determination of possible changes and impacts of underground water during construction and use of buildings, and provision of prevention and control recommendations.

[0003] In hydrogeological exploration work, it is necessary to use drilling or exploration pits (exploration wells) to expose underground water levels. For underground water with multiple levels, multiple length exploration pit casings are often arranged in parallel to form multi-point hole exploration, with each exploration pit casing corresponding to a water layer, so that personnel can subsequently insert the exploration device into the exploration water level. Underground water may change due to artificial factors, as well as climate and river diversion, and other natural factors, so exploration personnel will regularly conduct exploration of the water level.

[0004] A hydrogeological multi-layer underground water level exploration device is disclosed in Chinese patent document CN221549794U, which includes a shell and a handle. The handle is fixed to the top of the shell. A monitoring assembly is arranged inside the shell. A detachable extraction assembly is arranged outside the monitoring assembly. The monitoring assembly includes a liquid level sensing probe. The extraction assembly includes a connecting sleeve and a mounting sleeve in the shape of a cylinder. The liquid level sensing probe is located in the connecting sleeve. A rotating shaft is arranged in the shell. A scale rope is fixedly wound around the rotating shaft. One end of the scale rope is fixedly connected to a connecting plate. The connecting plate and the connecting sleeve are fixedly connected. A support sleeve is arranged below the shell. The scale rope passes through the support sleeve. A micro electric telescopic rod is fixedly arranged on the outer wall of the support sleeve. The first end of the micro electric telescopic rod penetrates the support sleeve. The first end of the micro electric telescopic rod is fixedly arranged with a push plate. When the liquid level sensing probe contacts the underground water, the micro electric telescopic rod is started and pushes the push plate. The push plate tightly abuts against the scale rope. At this time, the part of the scale rope between the connecting plate and the support sleeve is relatively fixed. The worker can know the water level of the underground water by checking the scale of the clamped part on the current scale rope. A cavity is formed in the connecting sleeve. A relief hole is formed in the inner side of the connecting sleeve. A one-way valve is arranged at the relief hole. Water can enter the cavity of the connecting sleeve through the relief hole.

[0005] According to the above scheme and the drawings in its specification, it can be seen that when the bottom end of the connecting sleeve contacts the water surface with the one-way valve in the empty space closed, the space inside the connecting sleeve of the liquid level sensing probe is a relatively closed space. Under the action of air pressure, the water flow entering the inside of the connecting sleeve needs to overcome the resistance of opening the one-way valve. In actual operation, the density of water, the density of air at the bottom of the well, and the friction force on the valve core of the one-way valve are all factors that affect when the water specifically enters the inside of the connecting sleeve. Therefore, when the liquid level sensing probe actually contacts the water, the relative position relationship between the external water level and the connecting sleeve also has a large uncertainty, which affects the accuracy of the water level measurement. Summary of the Invention

[0006] The present invention provides a hydrogeological survey device, aiming to solve the problem of low water level measurement accuracy in related technologies.

[0007] The cam is secured to the upper edge of the barrel and is secured to the bottom edge of the barrel with a spring applied to the barrel to release the liquid, the cam being secured to the lower edge of the barrel with a spring applied to the barrel to release the liquid.

[0008] The effect is that: the unwinding mechanism is on the ground, connected to the sampling mechanism through a suspension rope and lowered into the exploration well, the suspension rope is located at the top of the sampling ring tube, when the bottom end of the sampling ring tube contacts the water surface, the bottom of the detection space is closed by the water seal, but due to the presence of the first air pressure hole, the air pressure inside the detection space and the outside of the sampling ring tube can be kept consistent, so that when the liquid sensor contacts the water surface, the water level inside the detection space is basically consistent with the actual water level in the exploration well, and the detection result at this time has a higher accuracy; the opening of the sampling hole depends on whether the liquid sensor contacts the water surface. When the liquid sensor detects contact with water, the bottom end of the sampling ring tube is already below the water surface. At this time, the sampling hole is opened to allow water to enter the collection cavity, which can reduce the probability of floating objects on the water surface entering the collection cavity.

[0009] Preferably, the second air pressure hole and the sampling hole are coaxial, the control assembly comprises a controller and a control slide rod, the control slide rod and the sampling ring cylinder slide relative to each other, the sliding direction is parallel to the axis of the sampling hole, the control slide rod is fixedly connected with a sampling piston and an air pressure piston, the air pressure piston is used for blocking the second air pressure hole, the sampling piston is used for blocking the sampling hole, and the controller is used for driving the control slide rod to move.

[0010] The effect is that the movement of the control slide rod drives the sampling piston and the air pressure piston to move synchronously, and the sampling hole and the second air pressure hole can be synchronously opened and closed.

[0011] Preferably, a plurality of auxiliary measuring cylinders are fixedly connected to the outer wall of the sampling ring cylinder, the length direction of the auxiliary measuring cylinder is parallel to the axis of the sampling ring cylinder, one end of the auxiliary measuring cylinder close to the connecting plate is open, an auxiliary hole is arranged on the side wall of the sampling ring cylinder, the auxiliary hole is in communication with the bottom of the auxiliary measuring cylinder, an auxiliary plate is fixedly connected to the control slide rod, the auxiliary plate is in contact with the inner wall of the collecting cavity, and the auxiliary plate blocks the auxiliary hole when the sampling hole is blocked by the sampling piston.

[0012] The effect is that the water level in the auxiliary measuring cylinder can be kept consistent with the water level in the external space in the process that the water enters the collecting cavity, and the internal space of each auxiliary measuring cylinder is isolated after the sampling hole is closed. When the water level in the sampling ring cylinder on the ground is inconsistent with the water level in the auxiliary measuring cylinder, the water amount difference in each auxiliary measuring cylinder is compared, and the posture of the sampling ring cylinder in the well is reproduced by adjusting the posture of the sampling ring cylinder according to the water level in the sampling ring cylinder, so that the real liquid level data is calculated.

[0013] Preferably, the controller comprises a pneumatic hose and a power cylinder, the power cylinder is fixedly arranged on the side, away from the sampling ring cylinder, of the connecting plate, the power cylinder is in communication with the second air pressure hole, the air pressure piston is located in the power cylinder and in contact with the inner wall of the power cylinder when the second air pressure hole is in an open state, the pneumatic hose is in communication with the end of the power cylinder, away from the connecting plate, a gas flow hole is arranged on the cylinder wall of the power cylinder, and the air pressure piston can block the second air pressure hole and the gas flow hole at the same time.

[0014] The effect is that the air pressure piston in the power cylinder is controlled to move in the form of air pressure power, the whole control slide rod is driven to move, and finally the opening and closing control of the second air pressure hole and the sampling hole is realized.

[0015] Preferably, the unwinding mechanism includes a frame, a winding drum, a driving gear and a driving motor. The frame is located on the ground, the winding drum is rotatably set on the frame, the suspension rope is wound around the winding drum, and one end of the suspension rope is fixedly connected to the winding drum, the driving gear is coaxially fixedly connected to one end of the winding drum, the driving motor is connected to the frame, and an output gear is connected to the output shaft of the driving motor, and the output gear is engaged with the driving gear.

[0016] Preferably, it also includes an adjustment component, the pneumatic hose and the suspension rope are fixedly connected, the side wall of the pneumatic hose and the side wall of the suspension rope fit together and their extension trajectories are consistent, the diameter of the suspension rope is larger than the outer diameter of the pneumatic hose, a control chamber is opened in the winding drum, and the end of the pneumatic hose away from the power cylinder is connected to the control chamber, and the adjustment component is used to change the air pressure in the control chamber.

[0017] Preferably, the adjustment assembly includes an adjustment piston, which is located in the control chamber and is slidingly connected to the winding drum, and the sliding direction is the axial direction of the winding drum. The connection position between the pneumatic hose and the control chamber is always located on one side of the adjustment piston.

[0018] Preferably, the adjustment assembly further includes an adjustment motor and an adjustment screw, the adjustment screw and the winding drum are coaxially rotatably connected, the adjustment piston and the adjustment screw are coaxially threadedly connected, and the output shaft of the adjustment motor is coaxially connected to the adjustment screw.

[0019] The effect is that when the adjusting screw and the take-up drum rotate at the same speed, the adjusting piston also rotates at the same speed, that is, the adjusting piston's position relative to the take-up drum remains unchanged, and the air pressure in the control chamber remains unchanged. When the adjusting screw and the take-up drum have relative speeds, the adjusting piston can move relative to the take-up drum under the action of the screw drive, creating positive or negative pressure in the control chamber, achieving the air pressure control function.

[0020] Preferably, it also includes a fixed guide rail, which is laid on the ground, and the length direction of the fixed guide rail is parallel to the axis of the winding drum. A matching block is provided on the frame, and a motorized wheel is rotatably connected to the matching block. The motorized wheel and the fixed guide rail are in rolling contact. A stopper is provided on the matching block, and the stopper is used to fix the frame and the fixed guide rail relatively.

[0021] The effect is that since the suspension rope extends along the axial direction of the winding drum as a whole when it is wound on the winding drum, the winding drum itself has the ability to move axially when winding the suspension rope out or in, so the winding position of the suspension rope can be made more stable relative to the wellhead of the exploration well.

[0022] Preferably, the stop member includes a stop screw and a stop rack block, the stop screw and the mating block are threadedly connected, the length direction of the stop screw is perpendicular to the length direction of the fixed guide rail, the stop rack block is rotatably connected to one end of the stop screw facing the fixed guide rail, and a mating rack is fixedly connected to the fixed guide rail along its own length direction, and the stop rack block and the mating rack are selectively engaged.

[0023] The effect is that when the stop screw rotates, it can drive the stop rack block to rise or fall. When the stop rack block descends to the point where its own serrations engage with the serrations of the mating rack, the mating block and the frame can no longer move relative to the fixed guide rail, and the winding position of the suspension rope can also be kept stable.

[0024] By adopting the above technical solution, the beneficial effects of the present invention are: The present invention enables the detection space to be connected with the external space from above and has multiple auxiliary measuring tubes. The liquid sensor senses in time and the auxiliary measuring tubes provide auxiliary references for correcting the detection data, so that the measured water level data has higher accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the unwinding mechanism of the hydrogeological survey device in an embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of the main structure of the unwinding mechanism in an embodiment of the present invention.

[0027] Figure 3 It is a schematic cross-sectional view of the structure of the sampling mechanism in an embodiment of the present invention when the sampling hole and the second air pressure hole are not blocked.

[0028] Figure 4 It is a cross-sectional schematic diagram of the sampling mechanism when the second air pressure hole and the sampling hole are closed in an embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the connection structure of the suspension rope and the pneumatic hose in an embodiment of the present invention.

[0030] Figure 6 It is a cross-sectional schematic diagram embodying the operating principle of the adjustment component in an embodiment of the present invention.

[0031] Figure 7 yes Figure 2 A partial enlarged view of part A in the middle.

[0032] Reference numerals: 1. Fixed guide rail; 11. Matching rack; 2. Unwinding mechanism; 21. Frame; 211. Matching block; 212. Motorized wheel; 22. Stopper; 221. Stop screw; 222. Stop rack block; 23. Rewinding drum; 231. Control chamber; 24. Drive gear; 25. Drive motor; 251. Output gear; 26. Support gear; 27. Support roller; 3. Adjustment assembly; 31. Adjustment motor; 32. Adjustment screw; 33. Adjustment piston; 331. Rubber layer; 4. Suspension rope; 41. Mounting flange; 4 2. Fixed collar; 5. Sampling mechanism; 51. Connecting plate; 511. First air pressure hole; 512. Second air pressure hole; 52. Sampling ring tube; 521. Detection space; 522. Collecting cavity; 523. Sampling hole; 524. Auxiliary hole; 53. Auxiliary measuring tube; 54. Liquid sensor; 6. Control assembly; 61. Control slide bar; 611. Auxiliary plate; 62. Sampling piston; 63. Air pressure piston; 64. Controller; 641. Pneumatic hose; 642. Extension hose; 643. Power cylinder; 6431. Air flow hole. DETAILED DESCRIPTION

[0033] The following combination Figures 1 to 7 The present invention describes a hydrogeological survey device.

[0034] This embodiment discloses a hydrogeological survey device, such as Figure 1 、 Figure 2 and Figure 3 As shown, the unwinding mechanism 2, the suspension rope 4 and the sampling mechanism 5, the unwinding mechanism 2 is located on the wellhead surface of the exploration well, it is connected to the sampling mechanism 5 through the suspension rope 4, and the sampling mechanism 5 is allowed to enter the exploration well to monitor the water level and collect water samples.

[0035] like Figure 1 and Figure 2As shown, the unwinding mechanism 2 includes a frame 21, a winding drum 23, a driving gear 24 and a driving motor 25. The frame 21 is located on the ground, and the winding drum 23 is rotatably set on the frame 21. The rotation axis is in the horizontal direction. The suspension rope 4 is wound around the winding drum 23, and one end of the suspension rope is fixedly connected to the winding drum 23. When the winding drum 23 rotates, the other end of the suspension rope 4 can be wound in or out of the winding drum 23. The drive gear 24 is coaxially fixedly connected to one end of the winding drum 23. The drive motor 25 is connected to the frame 21. The output shaft of the drive motor 25 is coaxially fixedly connected to an output gear 251, which meshes with the drive gear 24. The meshing point between the output gear 251 and the drive gear 24 is located above the drive gear 24. Two support gears 26 are rotatably provided on the frame 21 and below the drive gear 24. The two support gears 26 simultaneously mesh with the drive gear 24 and also provide a certain degree of gravity support for the drive gear 24, thereby improving the balance of the drive gear 24 during rotation. At the end of the winding drum 23 away from the drive gear 24, two support rollers 27 are rotatably connected to the frame 21 and below the winding drum 23. The wheel surfaces of the two support rollers 27 simultaneously roll against the side walls of the winding drum 23, also providing gravity support for the winding drum 23.

[0036] like Figure 3 As shown, the sampling mechanism 5 includes a connecting plate 51 and a sampling ring 52. The sampling ring 52 is a hollow cylinder with a detection space 521 formed inside. A collection cavity 522 is also defined within the wall of the sampling ring 52. The connecting plate 51 is fixedly connected to one end of the sampling ring 52, with the surface of the connecting plate 51 perpendicular to the axis of the sampling ring 52. The end of the suspension rope 4 not connected to the reel 23 is fixedly connected to a mounting flange 41. The mounting flange 41 is coaxially bolted to the side of the connecting plate 51 facing away from the sampling ring 52. The suspension rope 4 is provided with a scale. The connecting plate 51 and the sampling ring 52 are placed in the exploration well. The depth of the sampling ring 52 is determined by the unwinding length of the suspension rope 4 relative to the frame 21 or the ground.

[0037] like Figure 3 and Figure 4As shown, a liquid sensor 54 is fixedly connected to the connecting plate 51 and in the detection space 521, a sampling hole 523 is provided at one end of the sampling ring tube 52 away from the connecting plate 51, and a first air pressure hole 511 and a second air pressure hole 512 that pass through the thickness of the connecting plate 51 are provided. The first air pressure hole 511 is connected to the detection space 521, and the second air pressure hole 512 and the sampling hole 523 are both connected to the collecting cavity 522, and the second air pressure hole 512 and the sampling hole 523 are coaxial. The collecting cavity 522 is used to collect water samples in the exploration well. When the bottom end of the sampling ring 52 contacts the water surface, the bottom of the detection space 521 is sealed by a water seal. However, due to the presence of the first air pressure hole 511, the air pressure inside the detection space 521 and outside the sampling ring 52 remains consistent. Consequently, when the liquid sensor 54 contacts the water surface, the water level inside the detection space 521 is substantially consistent with the actual water level in the exploration well. At this point, the liquid sensor 54 sends a signal to the surface control station, causing the drive motor 25 to stop operating and simultaneously reading the reading on the suspension rope 4, thereby obtaining water level data. The sampling mechanism 5 also includes a control assembly 6, which is used to control the simultaneous opening or closing of the sampling hole 523 and the second air pressure hole 512. Before the liquid sensor 54 contacts the water surface, both the sampling hole 523 and the second air pressure hole 512 should be closed. The liquid sensor 54 is electrically connected to the surface control station via an additional long signal cable, the connection port of which is located on the connecting plate 51 (not shown).

[0038] like Figure 3 and Figure 4As shown, the control assembly 6 includes a controller 64 and a control slide 61. The control slide 61 and the sampling ring tube 52 slide relative to each other, and the sliding direction is parallel to the axis of the sampling hole 523. The sampling piston 62 and the pneumatic piston 63 are fixedly connected to the control slide 61. The pneumatic piston 63 is used to block the second pneumatic hole 512, and the sampling piston 62 is used to block the sampling hole 523. The opening and closing states of the sampling hole 523 and the second pneumatic hole 512 are synchronized. The controller 64 is used to drive the control slide 61 to move. The controller 64 includes a pneumatic hose 641 and a power cylinder 643. The power cylinder 643 is fixedly arranged on the side of the connecting plate 51 away from the sampling ring tube 52. The number of power cylinders 643 is consistent with the number of the second pneumatic holes 512 and the two correspond one to one. The power cylinder 643 is connected to the second pneumatic hole 512. The pneumatic hose 641 is made of rubber, one end of which is fixedly connected to the mounting flange 41, and the other end extends to the ground and connects to the air source. An extension hose 642 is provided on the connecting plate 51. One end of the extension hose 642 is fixed and connected to the end of the power cylinder 643 away from the connecting plate 51. When the mounting flange 41 and the connecting plate 51 are fixed, the pneumatic hose 641 and the other end of the extension hose 642 are also connected, that is, the pneumatic hose 641 is connected to the inner cavity of the power cylinder 643 through the extension hose 642. The cylinder wall of the power cylinder 643 is provided with an air flow hole 6431. When the second air pressure hole 512 is in the open state, the air pressure piston 63 is located in the power cylinder 643 and contacts the inner wall of the power cylinder 643. At this time, the air flow hole 6431 can be connected to the second air pressure hole 512, that is, the space of the collection cavity 522 is connected to the external environment through the second air pressure hole 512, the inner cavity of the power cylinder 643, and the air flow hole 6431 to maintain pressure balance. The pneumatic hose 641 applies positive pressure to the power cylinder 643, which can move the pneumatic piston 63 toward the second pneumatic hole 512. The pneumatic piston 63 blocks the second pneumatic hole 512 and the air flow hole 6431 at the same time. At this time, the sampling piston 62 also blocks the sampling hole 523, and the collecting cavity 522 becomes a closed space.

[0039] like Figure 1 、 Figure 2 and Figure 5 As shown, the pneumatic hose 641 is fixedly connected to the suspension rope 4. The side wall of the pneumatic hose 641 fits the side wall of the suspension rope 4 and the extension trajectory of the two is consistent. That is, the pneumatic hose 641 moves with the suspension rope 4 and is wound on the surface of the reel 23. In order to reduce the squeezing deformation effect of the winding pressure on the shape of the pneumatic hose 641, the diameter of the suspension rope 4 is larger than the outer diameter of the pneumatic hose 641. The suspension rope 4 and the pneumatic hose 641 are bonded by glue, and a plurality of fixing rings 42 ( Figure 1 、 Figure 2(not shown in the figure), the fixed collar 42 is also simultaneously covered with the pneumatic hose 641 to maintain the stability of the parallel fixed relationship between the two. In this embodiment, the suspension rope 4 is a hemp rope with a diameter of 2.5 cm, the outer diameter of the pneumatic hose 641 is 1.5 cm, the interval between two adjacent fixed collars 42 is 25 cm-30 cm, and the fixed collars 42 are wound with electrical tape. The end of the pneumatic hose 641 away from the mounting flange 41 passes through the drive gear 24 and is fixedly connected to the end face of the winding drum 23. A control chamber 231 is provided in the winding drum 23, and the pneumatic hose 641 is connected to the control chamber 231. The surveying device also includes an adjustment component 3, which is used to change the air pressure in the control chamber 231, thereby controlling the pneumatic hose 641 to supply or extract air to the power cylinder 643.

[0040] like Figure 2 and Figure 6 As shown, the adjustment assembly 3 includes an adjustment piston 33, an adjustment motor 31, and an adjustment screw 32. The adjustment piston 33 is located in the control chamber 231 and is slidably connected to the winding drum 23, with the sliding direction being the axial direction of the winding drum 23. The adjustment screw 32 is rotatably mounted on the frame 21, and the adjustment screw 32 and the winding drum 23 are coaxially connected and a bearing is provided between them, that is, the rotational movement of the winding drum 23 and the adjustment screw 32 do not interfere with each other. The adjustment motor 31 is fixedly mounted on the frame 21, and the output shaft of the adjustment motor 31 is coaxially connected to the adjustment screw 32. The adjustment piston 33 and the adjustment screw 32 are coaxially threaded. When the adjustment screw 32 and the winding drum 23 rotate at the same speed, the adjustment piston 33 also rotates at the same speed. That is, the position of the adjustment piston 33 relative to the winding drum 23 remains unchanged, and the air pressure in the control chamber 231 remains unchanged. When the adjusting screw 32 and the take-up drum 23 move relative to each other, the adjusting piston 33, driven by the screw drive, moves relative to the take-up drum 23, generating positive or negative pressure within the control chamber 231, thereby achieving air pressure control. To improve the seal between the adjusting piston 33 and the inner wall of the take-up drum 23, a rubber layer 331 is fixed to the edge of the adjusting piston 33.

[0041] like Figure 2 and Figure 7As shown, in this embodiment, the suspension rope 4 is wound only one layer around the reel 23. The outer diameter of the reel 23 is 47 cm, the total length is 2 m, and the maximum reel length of the suspension rope 4 is approximately 73 m. To ensure that the reeling point of the suspension rope 4 is always directly above the wellhead of the exploration well during the release and reeling process, the reel 23 needs to move relative to the ground. Therefore, the survey device also includes a fixed guide rail 1. The fixed guide rail 1 is laid on the ground, and the length direction of the fixed guide rail 1 is parallel to the axis of the reel 23. The fixed guide rail 1 is a channel steel, and there are two of them. The frame 21 is provided with a matching block 211, which is rotatably connected to a motorized wheel 212. The motorized wheel 212 and the fixed guide rail 1 are in rolling contact. When continuously lowering or raising the sampling mechanism 5, the operator can manually push the frame 21 to allow the reel 23 to move along the axial position. A stopper 22 is provided on the mating block 211, and the stopper 22 is used to relatively fix the frame 21 and the fixed guide rail 1 when needed. A mating rack 11 is fixedly connected to the fixed guide rail 1, and the mating rack 11 is welded and fixed to the bottom of the channel steel, and the length directions of the two are consistent. The stopper 22 includes a stop screw 221 and a stop rack block 222. The stop screw 221 and the mating block 211 are vertically threaded. The stop rack block 222 is rotatably connected to one end of the stop screw 221 facing the fixed guide rail 1 and is vertically slidably connected to the mating block 211, that is, when the stop screw 221 rotates, it can drive the stop rack block 222 to rise or fall; when the stop rack block 222 descends to the point where its own serrations engage with the serrations of the mating rack 11, the mating block 211 and the frame 21 can no longer move relative to the fixed guide rail 1, and at this time, the winding position of the suspension rope 4 is also kept stable.

[0042] like Figure 3As shown, a plurality of auxiliary burettes 53 are fixedly connected to the outer wall of the sampling ring 52. The length direction of the auxiliary burettes 53 is parallel to the axis of the sampling ring 52. The upper end of the auxiliary burettes 53 is open and the lower end is closed. Auxiliary holes 524 are formed in the side wall of the sampling ring 52. The auxiliary holes 524 are connected to the bottom of the auxiliary burettes 53 and the collection cavity 522. In other words, water in the collection cavity 522 can enter the auxiliary burettes 53 through the auxiliary holes 524. An auxiliary plate 611 is fixedly connected to one side of the control slide 61. The auxiliary plate 611 contacts the inner wall of the collection cavity 522. When the sampling hole 523 is opened, the auxiliary holes 524 are also open. When the sampling hole 523 is blocked by the sampling piston 62, the auxiliary plate 611 also closes the auxiliary holes 524. In this embodiment, there are four auxiliary measuring tubes 53, power cylinders 643, and control slide rods 61. The four auxiliary measuring tubes 53 are arranged in a circumferential array around the sampling ring 52. As water enters the collection cavity 522, the water level within the auxiliary measuring tubes 53 remains consistent with the water level outside. After the sampling holes 523 are closed, the interior spaces of each auxiliary measuring tube 53 are isolated. If the axis of the sampling ring 52 cannot remain vertical due to certain internal factors within the exploration well, the water level within the sampling ring 52 retrieved to the surface will not reflect the true water level. Therefore, it is necessary to compare the water volume differences within each auxiliary measuring tube 53 and, based on the water level within the sampling ring 52, adjust the posture of the sampling ring 52 to reproduce the posture of the sampling ring 52 underground, thereby calculating the true liquid level data.

[0043] The working process of this embodiment: After bolting the mounting flange 41 and connecting plate 51, the pneumatic hose 641 and extension hose 642 are connected. First, the control slide 61 is positioned to open the sampling hole 523 and the second air pressure hole 512. The sampling ring 52 is then lowered into the exploration well while continuously pushing the frame 21. When the liquid sensor 54 sends a signal, the drive motor 25 stops, the frame 21 is relatively fixed by the stop 22, and the reading on the suspension rope 4 is read. The regulating motor 31 is then activated. The change in air pressure within the take-up drum 23 ultimately drives the control slide 61 to simultaneously close the sampling hole 523, the auxiliary hole 524, and the second air pressure hole 512. The output shaft of the drive motor 25 then flips, pulling the sampling ring 52 to the surface. The water level is then calculated based on the water level data within the auxiliary measuring tube 53.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the textual descriptions and drawings of the above embodiments are exemplary and are intended to be used to explain the inventive concept of the present invention. They cannot be understood as limitations on the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A hydrogeological survey device, comprising an unwinding mechanism (2), a suspension rope (4) and a sampling mechanism (5), wherein the sampling mechanism (5) comprises a connecting plate (51) and a sampling ring tube (52), a detection space (521) is formed inside the sampling ring tube (52), the connecting plate (51) and one end of the sampling ring tube (52) are fixedly connected, a liquid sensor (54) is fixedly connected on the connecting plate (51) and in the detection space (521), the unwinding mechanism (2) is connected to the connecting plate (51) via the suspension rope (4), a collecting cavity (522) is provided on the sampling ring tube (52), and a scale is provided on the suspension rope (4); It is characterized by: The suspension rope (4) and the sampling ring tube (52) are respectively connected to opposite sides of the connecting plate (51); the connecting plate (51) is provided with a first air pressure hole (511) and a second air pressure hole (512) that penetrate the thickness of the connecting plate; the first air pressure hole (511) is connected to the detection space (521); the sampling ring tube (52) is provided with a sampling hole (523) at one end away from the connecting plate (51); the second air pressure hole (512) and the sampling hole (523) are both connected to the collection cavity (522); the sampling mechanism (5) further comprises a control component (6); the control component (6) is used to control the simultaneous opening or closing of the sampling hole (523) and the second air pressure hole (512).

2. A hydrogeological survey device according to claim 1, characterized in that: The second air pressure hole (512) and the sampling hole (523) are coaxial. The control assembly (6) includes a controller (64) and a control slide (61). The control slide (61) and the sampling ring tube (52) slide relative to each other, and the sliding direction is parallel to the axis of the sampling hole (523). The control slide (61) is fixedly connected to a sampling piston (62) and an air pressure piston (63). The air pressure piston (63) is used to block the second air pressure hole (512), and the sampling piston (62) is used to block the sampling hole (523). The controller (64) is used to drive the control slide (61) to move.

3. A hydrogeological survey device according to claim 2, characterized in that: A plurality of auxiliary measuring tubes (53) are fixedly connected to the outer wall of the sampling ring tube (52), the length direction of the auxiliary measuring tubes (53) is parallel to the axis of the sampling ring tube (52), and one end of the auxiliary measuring tubes (53) close to the connecting plate (51) is open. An auxiliary hole (524) is opened on the side wall of the sampling ring tube (52), and the auxiliary hole (524) is connected to the bottom of the auxiliary measuring tube (53). An auxiliary plate (611) is fixedly connected to the control slide rod (61), and the auxiliary plate (611) contacts the inner wall of the collection cavity (522). When the sampling hole (523) is closed by the sampling piston (62), the auxiliary plate (611) closes the auxiliary hole (524).

4. A hydrogeological survey device according to claim 2 or 3, characterized in that: The controller (64) includes a pneumatic hose (641) and a power cylinder (643). The power cylinder (643) is fixedly arranged on a side of the connecting plate (51) away from the sampling ring cylinder (52). The power cylinder (643) is connected to the second air pressure hole (512). When the second air pressure hole (512) is in an open state, the air pressure piston (63) is located in the power cylinder (643) and contacts the inner wall of the power cylinder (643). The pneumatic hose (641) is connected to the end of the power cylinder (643) away from the connecting plate (51). An air flow hole (6431) is opened on the cylinder wall of the power cylinder (643). The air pressure piston (63) can simultaneously block the second air pressure hole (512) and the air flow hole (6431).

5. A hydrogeological survey device according to claim 4, characterized in that: The unwinding mechanism (2) comprises a frame (21), a winding drum (23), a driving gear (24) and a driving motor (25); the frame (21) is located on the ground; the winding drum (23) is rotatably arranged on the frame (21); the suspension rope (4) is wound around the winding drum (23); one end of the suspension rope (4) is fixedly connected to the winding drum (23); the driving gear (24) is coaxially fixedly connected to one end of the winding drum (23); the driving motor (25) is connected to the frame (21); an output gear (251) is connected to the output shaft of the driving motor (25); and the output gear (251) and the driving gear (24) are meshed.

6. A hydrogeological survey device according to claim 5, characterized in that: The invention also includes an adjusting component (3), wherein the pneumatic hose (641) and the suspension rope (4) are fixedly connected, the side wall of the pneumatic hose (641) and the side wall of the suspension rope (4) are in contact with each other and their extension trajectories are consistent, the diameter of the suspension rope (4) is larger than the outer diameter of the pneumatic hose (641), a control chamber (231) is provided in the reel (23), and one end of the pneumatic hose (641) away from the power cylinder (643) is connected to the control chamber (231), and the adjusting component (3) is used to change the air pressure in the control chamber (231).

7. A hydrogeological survey device according to claim 6, characterized in that: The regulating assembly (3) comprises a regulating piston (33), the regulating piston (33) being located in a control chamber (231) and being slidably connected to the reel (23), the sliding direction being the axial direction of the reel (23), and the communication position between the pneumatic hose (641) and the control chamber (231) being always located on one side of the regulating piston (33).

8. A hydrogeological survey device according to claim 7, characterized in that: The adjusting assembly (3) further comprises an adjusting motor (31) and an adjusting screw (32); the adjusting screw (32) and the winding drum (23) are coaxially rotatably connected; the adjusting piston (33) and the adjusting screw (32) are coaxially threadedly connected; and the output shaft of the adjusting motor (31) and the adjusting screw (32) are coaxially connected.

9. The hydrogeological survey device according to claim 5, characterized in that: The invention also includes a fixed guide rail (1), the fixed guide rail (1) being laid on the ground, the length direction of the fixed guide rail (1) being parallel to the axis of the winding drum (23), the frame (21) being provided with a matching block (211), the matching block (211) being rotatably connected to a motorized wheel (212), the motorized wheel (212) and the fixed guide rail (1) being in rolling contact, the matching block (211) being provided with a stopper (22), the stopper (22) being used to relatively fix the frame (21) and the fixed guide rail (1).

10. The hydrogeological survey device according to claim 9, characterized in that: The stop member (22) includes a stop screw (221) and a stop rack block (222), wherein the stop screw (221) and the matching block (211) are threadedly connected, the length direction of the stop screw (221) is perpendicular to the length direction of the fixed guide rail (1), and the stop rack block (222) is rotatably connected to one end of the stop screw (221) facing the fixed guide rail (1), and the fixed guide rail (1) is fixedly connected to a matching rack (11) along its own length direction, and the stop rack block (222) and the matching rack (11) are selectively engaged.

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