Water sampling device for geological surveying and mapping

Abstract

The invention is applicable to the technical field of hydrological survey sampling, and provides a water sampling device for geological surveying and mapping, which comprises a connecting seat, the connecting seat is fixedly connected with an electric push rod, a telescopic part of the electric push rod is in threaded fixed connection with a sampling pipe, and a water inlet of the sampling pipe is provided with a filter assembly. The telescopic part of the electric push rod is slidably and hermetically connected with a sealing mechanism, the fixed part of the electric push rod is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod is horizontally slidably connected with the sealing mechanism, and the telescopic end of the electric telescopic rod is connected with a driving assembly. In the invention, the regulation and control system imports the current air environment coefficient, the soil state coefficient and the sampling device state coefficient into the pressure regulation model to output the target pressure value, and then regulates the pressure value between the sealing mechanism and the ground, thereby regulating the tightness between the sealing mechanism and the ground.

Description

Technical Field

[0001] This invention belongs to the field of hydrological surveying and sampling technology, and particularly relates to a water sampling device for geological surveying. Background Technology

[0002] Hydrological surveying is a general term for various technical tasks involving the collection and processing of hydrological data. By applying hydrological surveys to obtain data on various hydrological elements and processing the data through analysis and calculation, water resources can be evaluated and rationally developed and utilized, providing a basis for the planning, design, construction, management, operation, flood control, and drought relief of engineering projects.

[0003] During groundwater sampling, water samples need to be isolated from the external air environment to improve sampling accuracy. Existing geological surveying water sampling devices are equipped with sealing devices. Traditional sealing devices use a fixed sealing method. If the pressure between the sealing device and the ground is too tight, it can easily cause rigid damage to the sealing device. If the pressure between the sealing device and the ground is too small, it can easily lead to a poor seal. Traditional sealing methods also suffer from inaccurate adjustments during sealing due to the lack of dynamic comprehensive evaluation. Traditional sealing methods cannot adjust the sealing level according to the influence of the external environment. Summary of the Invention

[0004] The purpose of this invention is to provide a water sampling device for geological surveying, which aims to solve the technical problem that traditional methods rely on manual experience to adjust the contact force between the sealing device and the ground, and do not consider the influence of air environment, soil condition and sampling device condition on the sealing level of the sealing device.

[0005] The present invention is implemented as follows: a water sampling device for geological mapping includes a connecting seat, wherein multiple support frames are rotatably connected to the connecting seat at equal intervals, and positioning rods are threadedly connected to the fixing plates near the bottom of each support frame.

[0006] The connecting seat is fixedly connected to an electric push rod, and the telescopic part of the electric push rod is threadedly fixedly connected to a sampling tube. An electric drill bit is provided at the lower end of the sampling tube, and a filter assembly is provided at the water inlet of the sampling tube. The telescopic part of the electric push rod is slidably and sealingly connected to a sealing mechanism. The fixed part of the electric push rod is fixedly connected to an electric telescopic rod. The telescopic end of the electric telescopic rod is horizontally slidably connected to the sealing mechanism. The telescopic end of the electric telescopic rod is connected to a drive assembly, which can drive the sealing mechanism to reciprocate horizontally. The sealing mechanism can abut against the ground.

[0007] The control system, used to adjust the sealing degree of the sampling tube during sampling, includes:

[0008] The data acquisition module is used to acquire air environment data, soil condition data, and sampling device status data;

[0009] The data processing module includes an air environment data processing unit, a soil condition data processing unit, and a sampling device condition data processing unit.

[0010] The air environment data processing unit can construct an air environment data processing model based on air environment data and output air environment coefficients.

[0011] The soil state data processing unit can construct a soil state data processing model based on soil state data and output soil state coefficients.

[0012] The sampling device status data processing unit can construct a sampling device status data processing model based on the sampling device status data and output the sampling device status coefficients.

[0013] The sealing adjustment module can import the current air environment coefficient, soil condition coefficient, and sampling device condition coefficient into the pressure adjustment model to output the target pressure value and adjust the pressure value between the sealing mechanism and the ground.

[0014] A further technical solution includes an electric baffle and a protective base. The protective base is fixedly connected to the sampling tube, and the electric baffle is vertically and elastically slidably connected to the protective base. The electric baffle is located outside the water inlet of the sampling tube. A filter screen is installed in the electric baffle. A power supply connected to the electric baffle is installed in the protective base. The sealing plate on the electric baffle can be opened and closed under electric drive. A vibrator is installed on the electric baffle and is electrically connected to the control system.

[0015] In a further technical solution, the sealing mechanism includes a sealing seat, a roller, a pusher, and a clamping plate;

[0016] The sealing seat is slidably and sealingly connected to the telescopic part of the electric push rod. A roller is rotatably connected in the groove on the bottom surface of the sealing seat, and several push seats are fixedly connected to the bottom surface of the sealing seat.

[0017] In a further technical solution, the sealing seat is connected to an air pump, and an air bladder is provided in the sealing seat. The air pump is connected to the air bladder. An annular hole communicating with the interior of the sealing seat is opened on the lower end face of the sealing seat. A retaining plate is rotatably connected to the opening groove on the bottom surface of the sealing seat through an elastic torsion spring. The opening groove at the bottom of the sealing seat is connected to the interior of the sealing seat.

[0018] In a further technical solution, a slider is fixedly connected to the telescopic end of the electric telescopic rod, a groove is provided in the sealing seat, the slider is slidably connected in the groove, and a downward pressure sensor is provided on the bottom surface of the slider.

[0019] In a further technical solution, the drive assembly includes a primary motor and a drive wheel. The primary motor is fixedly connected to the telescopic end of the electric telescopic rod. The output shaft of the primary motor is fixed with the drive wheel, and the drive wheel meshes with the gear ring on the upper part of the sealing seat.

[0020] A further technical solution involves an external temperature sensor, an air humidity sensor, and a light intensity sensor on the connector. The air environment data includes temperature, humidity, and light intensity. The temperature value of the temperature sensor, the humidity value of the air humidity sensor, and the light intensity value of the light intensity sensor at the current moment are compared with the corresponding set reference environmental data to obtain the temperature index, air humidity index, and light intensity index. The temperature index, air humidity index, and light intensity index are then weighted to obtain the air environment coefficient.

[0021] A further technical solution is that the outer wall of the sampling tube is provided with a soil pressure sensor and a soil moisture sensor. The soil state data includes the lateral pressure of the soil on the sampling tube and the soil moisture. The pressure value of the soil pressure sensor and the moisture value of the soil moisture sensor at the current moment are respectively compared with the corresponding set benchmark data to obtain the soil pressure index and the soil moisture index. The soil pressure index and the soil moisture index are weighted to obtain the soil state coefficient.

[0022] A further technical solution is that the electric push rod is equipped with a vibration sensor and a wind sensor. The sampling device status data includes vibration frequency value and wind speed value. The vibration frequency value of the vibration sensor and the wind speed value of the wind sensor at the current moment are compared with the corresponding set benchmark data to obtain the vibration index and wind speed index. The vibration index and wind speed index are weighted to obtain the sampling device status coefficient.

[0023] A further technical solution is provided, wherein the specific working steps of the sealing adjustment module are as follows:

[0024] A pressure adjustment model was constructed based on the air environment coefficient, soil state coefficient, and sampling device state coefficient.

[0025] Import the current air environment coefficient, soil state coefficient and sampling device state coefficient into the pressure adjustment model to output the target pressure value, and adjust the pressure value between the sealing mechanism and the ground to the target pressure value.

[0026] The pressure adjustment model is expressed as follows:

[0027]

[0028] in, Indicates the target pressure value. This indicates the set base pressure value. For air quality coefficient, Soil state coefficient, This is the state coefficient of the sampling device.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. The control system acquires air environment data, soil condition data, and sampling device condition data. It then imports the current air environment coefficient, soil condition coefficient, and sampling device condition coefficient into the pressure adjustment model to output the target pressure value. Subsequently, it adjusts the pressure value between the sealing mechanism and the ground to adjust the sealing degree between the sealing mechanism and the ground, thereby ensuring that the sampling tube is always effectively isolated from the external environment during sampling and preventing the sample taken from the sampling tube from being contaminated by the outside.

[0031] 2. The electric telescopic rod moves the sealing seat downward. When the sealing seat contacts the ground, the drive component is activated. The drive component drives the sealing seat to rotate back and forth. The sealing seat drives the roller to roll the ground, and the sealing seat drives the pusher to level the ground. This increases the subsequent fit between the sealing seat and the ground and improves the sealing performance between the sealing seat and the ground.

[0032] 3. Once the sampling tube is inserted into the ground and the sealing mechanism is sealed to the ground, the sealing plate on the electric baffle is opened. Groundwater in the soil flows into the sampling tube after being filtered through the filter screen. During this process, the vibrator on the electric baffle vibrates at a low frequency to ensure that the filter screen remains unobstructed and to prevent clogging. Furthermore, based on the soil condition coefficient, the control system can also control the vibration frequency of the vibrator to improve the flow capacity of the filter screen. The higher the soil condition coefficient, the higher the frequency of the vibrator.

[0033] 4. This control system uses mathematical calculations to correlate air environment, soil condition, and sampling device condition. For example, when vibration or external wind causes instability in the sampling device used for geological mapping, the sampling device's condition coefficient increases, and the model increases the target pressure value to maintain effective sealing. When soil pressure or moisture increases, the soil condition stability is poor, the soil condition coefficient increases, and the model increases the target pressure value to maintain effective sealing. Alternatively, when the temperature, humidity, or light intensity in the external air environment is too high, the rate of deterioration of the water sample upon contact with external air increases, and the model increases the target pressure value to maintain effective sealing. Finally, the sealing adjustment module automatically adjusts the downward pressure of the electric telescopic rod based on the target pressure value output by the model, forming a closed-loop control. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the filter component in this invention;

[0036] Figure 3 This is a schematic diagram of the driving component in this invention;

[0037] Figure 4 This is a schematic diagram of the sealing mechanism in this invention;

[0038] Figure 5 This is a schematic diagram of the control principle of the control system in this invention.

[0039] In the attached diagram: 1. Connecting seat; 2. Support frame; 3. Electric push rod; 4. Sampling tube; 5. Filter assembly; 51. Electric retaining sleeve; 52. Protective base; 6. Electric telescopic rod; 7. Sealing mechanism; 71. Sealing seat; 72. Roller; 73. Push seat; 74. Clamping plate; 8. Drive assembly; 81. Motor No. 1; 82. Drive wheel; 9. Air pump; 10. Electric drill bit; 11. Annular hole; 12. Slider; 13. Slide groove; 14. Positioning rod. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0041] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0042] like Figures 1-5 As shown, a geological surveying water sampling device provided in an embodiment of the present invention includes a connecting seat 1, a plurality of support frames 2 are rotatably connected to the connecting seat 1 at equal intervals, and positioning rods 14 are threadedly connected to the fixing plates near the bottom of the support frames 2.

[0043] The connecting seat 1 is fixedly connected to an electric push rod 3. The telescopic part of the electric push rod 3 is threadedly fixedly connected to a sampling tube 4. An electric drill bit 10 is provided at the lower end of the sampling tube 4. A filter assembly 5 is provided at the water inlet of the sampling tube 4. The telescopic part of the electric push rod 3 is slidably and sealingly connected to a sealing mechanism 7. The fixed part of the electric push rod 3 is fixedly connected to an electric telescopic rod 6. The telescopic end of the electric telescopic rod 6 is horizontally slidably connected to the sealing mechanism 7. The telescopic end of the electric telescopic rod 6 is connected to a driving assembly 8. The driving assembly 8 can drive the sealing mechanism 7 to reciprocate horizontally. The sealing mechanism 7 can abut against the ground.

[0044] The control system, used to adjust the sealing degree of sampling tube 4, includes:

[0045] The data acquisition module is used to acquire air environment data, soil condition data, and sampling device status data;

[0046] The data processing module includes an air environment data processing unit, a soil condition data processing unit, and a sampling device condition data processing unit.

[0047] The air environment data processing unit can construct an air environment data processing model based on air environment data and output air environment coefficients.

[0048] The soil state data processing unit can construct a soil state data processing model based on soil state data and output soil state coefficients.

[0049] The sampling device status data processing unit can construct a sampling device status data processing model based on the sampling device status data and output the sampling device status coefficients.

[0050] The sealing adjustment module can import the current air environment coefficient, soil condition coefficient and sampling device condition coefficient into the pressure adjustment model to output the target pressure value, and adjust the pressure value between the sealing mechanism 7 and the ground.

[0051] In this embodiment, each support frame 2 is fixed in the sampling area and the sampling tube 4 is kept in a vertical state. The electric push rod 3 is activated to extend. At this time, the electric push rod 3 pushes the electric drill bit 10 to drill into the ground. After the sampling tube 4 is inserted into the ground, the electric telescopic rod 6 is activated. The electric telescopic rod 6 pushes the sealing mechanism 7 down and into contact with the ground. At this time, the drive component 8 is activated. The drive component 8 can drive the sealing mechanism 7 to rotate back and forth. The sealing mechanism 7 flattens the ground.

[0052] The control system then acquires air environment data, soil condition data, and sampling device condition data. It then imports the current air environment coefficient, soil condition coefficient, and sampling device condition coefficient into the pressure adjustment model to output the target pressure value. After that, it adjusts the pressure value between the sealing mechanism 7 and the ground to adjust the sealing degree between the sealing mechanism 7 and the ground, thereby ensuring that the sampling tube 4 is always effectively isolated from the external environment during sampling, and preventing the sample taken in the sampling tube 4 from being contaminated by the outside.

[0053] like Figure 2As shown, in a preferred embodiment of the present invention, the filter assembly 5 includes an electric baffle 51 and a protective base 52. The protective base 52 is fixedly connected to the sampling tube 4. The electric baffle 51 is vertically elastically slidably connected to the protective base 52. The electric baffle 51 is disposed outside the water inlet of the sampling tube 4. A filter screen is disposed in the electric baffle 51. A power supply connected to the electric baffle 51 is disposed in the protective base 52. The sealing plate on the electric baffle 51 can be opened and closed under electric drive. A vibrator is disposed on the electric baffle 51. The vibrator is electrically connected to the control system.

[0054] In this embodiment, after the sampling tube 4 is inserted into the ground and the sealing mechanism 7 is sealed with the ground, the sealing plate on the electric baffle 51 is opened, and the groundwater in the soil flows into the sampling tube 4 after being filtered through the filter screen. During this process, the vibrator on the electric baffle 51 vibrates at a low frequency to ensure that the filter screen remains unobstructed and to avoid clogging. In addition, according to the soil state coefficient, the control system can also control the vibration frequency of the vibrator to improve the flow capacity of the filter screen. When the soil state coefficient is higher, the frequency of the vibrator is higher.

[0055] like Figure 4 As shown, in a preferred embodiment of the present invention, the sealing mechanism 7 includes a sealing seat 71, a roller 72, a push seat 73, and a clamping plate 74;

[0056] The sealing seat 71 is slidably and sealingly connected to the telescopic part of the electric push rod 3. A roller 72 is rotatably connected in the groove on the bottom surface of the sealing seat 71. Several push seats 73 are fixedly connected to the bottom surface of the sealing seat 71.

[0057] In this embodiment, the electric telescopic rod 6 is activated, which drives the sealing seat 71 to move downward. When the sealing seat 71 contacts the ground, the drive assembly 8 is activated, which drives the sealing seat 71 to rotate back and forth. The sealing seat 71 drives the roller 72 to roll the ground, and the sealing seat 71 drives the pusher 73 to level the ground, thereby increasing the subsequent fit between the sealing seat 71 and the ground and improving the sealing performance between the sealing seat 71 and the ground.

[0058] like Figure 1 As shown, in a preferred embodiment of the present invention, the sealing seat 71 is connected to an air pump 9, an air bladder is provided in the sealing seat 71, the air pump 9 is connected to the air bladder, an annular hole 11 communicating with the interior of the sealing seat 71 is opened on the lower end face of the sealing seat 71, and a retaining plate 74 is rotatably connected to the opening groove on the bottom surface of the sealing seat 71 through an elastic torsion spring, and the opening groove at the bottom of the sealing seat 71 is connected to the interior of the sealing seat 71.

[0059] In this embodiment, after the sealing seat 71 is pressed and sealed with the ground, the air pump 9 is started. The air pump 9 increases the air pressure in the airbag, and then the airbag pops out from the annular hole 11, thereby sealing the edge of the sealing seat 71. Under the pressure of the airbag, the clamping plate 74 pops out from the opening groove at the bottom of the sealing seat 71. The drive assembly 8 is started, and the drive assembly 8 can push all the clamping plates 74 to be inserted obliquely into the ground, thereby increasing the sealing between the sealing seat 71 and the ground. The elastic pressure of the airbag can also increase the stability of the entire device.

[0060] like Figure 3 As shown, in a preferred embodiment of the present invention, the telescopic end of the electric telescopic rod 6 is fixedly connected to a slider 12, the sealing seat 71 is provided with a groove 13, the slider 12 is slidably connected in the groove 13, and a downward pressure sensor is provided on the bottom surface of the slider 12.

[0061] In this embodiment, the sealing adjustment module can import the current air environment coefficient, soil state coefficient and sampling device state coefficient into the pressure adjustment model to output the target pressure value, and adjust the extension and retraction of the electric telescopic rod 6 until the pressure value of the lower pressure sensor is equal to or higher than the target pressure value.

[0062] like Figure 3 As shown, in a preferred embodiment of the present invention, the drive assembly 8 includes a primary motor 81 and a drive wheel 82. The primary motor 81 is fixedly connected to the telescopic end of the electric telescopic rod 6. The output shaft of the primary motor 81 is fixed with the drive wheel 82, and the drive wheel 82 meshes with the gear ring on the upper part of the sealing seat 71.

[0063] In this embodiment, the first motor 81 is started, which drives the drive wheel 82 to rotate. The drive wheel 82 drives the sealing seat 71 to rotate by meshing with the gear ring on the sealing seat 71. The sealing seat 71 drives the roller 72 and the push seat 73 to roll and flatten the ground.

[0064] In a preferred embodiment of the present invention, the connecting base 1 is externally provided with a temperature sensor, an air humidity sensor, and a light intensity sensor. The air environment data includes temperature, humidity, and light intensity. The temperature value of the temperature sensor, the humidity value of the air humidity sensor, and the light intensity value of the light intensity sensor at the current moment are respectively compared with the corresponding set reference environmental data to obtain the temperature index, air humidity index, and light intensity index. The temperature index, air humidity index, and light intensity index are weighted to obtain the air environment coefficient.

[0065] Specifically, the air environment data processing model is as follows:

[0066] ;

[0067] Where k1, k2, and k3 are the weights of temperature, humidity, and light intensity on the air environment, respectively, and can be adjusted according to the actual situation. k1+k2+k3=1, T is the normalized temperature index, H is the normalized air humidity index, and G is the normalized light intensity index.

[0068] Traditional sealing devices use a fixed sealing method. Excessive pressure between the sealing device and the ground can easily damage its rigidity, while insufficient pressure can lead to incomplete sealing. Traditional sealing methods also suffer from inaccurate adjustments due to a lack of dynamic comprehensive evaluation. Furthermore, traditional sealing methods cannot adjust the sealing level based on external environmental influences. This implementation considers the effects of temperature, humidity, and light intensity on water samples. This solution eliminates unit-based differences in temperature, humidity, and light intensity through ratio processing, and then constructs an air environment data processing model through weighted processing to derive an air environment coefficient. The sealing level of the sealing mechanism 7 is controlled based on this air environment coefficient, ultimately ensuring that the water sample in the sampling tube 4 is isolated from the external air environment during sampling, thus improving the accuracy of water sample collection.

[0069] In a preferred embodiment of the present invention, the outer wall of the sampling tube 4 is provided with a soil pressure sensor and a soil moisture sensor. The soil state data includes the lateral pressure of the soil on the sampling tube 4 and the soil moisture. The pressure value of the soil pressure sensor and the moisture value of the soil moisture sensor at the current moment are respectively compared with the corresponding set benchmark data to obtain the soil pressure index and the soil moisture index. The soil pressure index and the soil moisture index are weighted to obtain the soil state coefficient.

[0070] Specifically, the soil condition data processing model is as follows:

[0071] ;

[0072] Where k4 and k5 are the weights of soil pressure and soil moisture on soil condition, respectively, and can be adjusted according to actual conditions. k4+k5=1, F is the normalized soil pressure index, and B is the normalized soil moisture index.

[0073] In a preferred embodiment of the present invention, the electric push rod 3 is provided with a vibration sensor and a wind sensor. The sampling device status data includes vibration frequency value and wind speed value. The vibration frequency value of the vibration sensor and the wind speed value of the wind sensor at the current moment are respectively compared with the corresponding set reference data to obtain the vibration index and the wind speed index. The vibration index and the wind speed index are weighted to obtain the sampling device status coefficient.

[0074] Specifically, the sampling device status data processing model is as follows:

[0075] ;

[0076] Where k6 and k7 are the weights of the influence of the sampling device's own vibration frequency and external wind force on the sampling device's state, respectively, and can be adjusted according to the actual situation. k6+k7=1, R is the normalized vibration index, and V is the normalized wind speed index.

[0077] In a preferred embodiment of the present invention, the specific working steps of the sealing adjustment module are as follows:

[0078] A pressure adjustment model was constructed based on the air environment coefficient, soil state coefficient, and sampling device state coefficient.

[0079] Import the current air environment coefficient, soil state coefficient and sampling device state coefficient into the pressure adjustment model to output the target pressure value, and adjust the pressure value between the sealing mechanism 7 and the ground to the target pressure value.

[0080] The pressure adjustment model is expressed as follows:

[0081] ;

[0082] in, Indicates the target pressure value. This indicates the set base pressure value. For air quality coefficient, Soil state coefficient, This is the state coefficient of the sampling device.

[0083] Specifically, this control system uses mathematical calculations to correlate air environment, soil condition, and sampling device condition. For example, when vibration or external wind causes instability in the sampling device used for geological mapping, the sampling device's condition coefficient increases, and the model increases the target pressure value to maintain an effective seal. When soil pressure or moisture increases, the soil condition is less stable, the soil condition coefficient increases, and the model increases the target pressure value to maintain an effective seal. Alternatively, when the temperature, humidity, or light intensity in the external air environment is too high, the rate of deterioration of the water sample upon contact with the external air increases, and the model increases the target pressure value to maintain an effective seal. Finally, the sealing adjustment module automatically adjusts the downward pressure of the electric telescopic rod 6 based on the target pressure value output by the model, forming a closed-loop control.

[0084] Traditional methods rely on manual experience to adjust the contact force between the sealing device and the ground, and do not consider the influence of air environment, soil condition, and sampling device condition on the sealing level of the sealing device. Compared with existing technologies, this solution achieves adaptive adjustment of the sealing level by establishing a multi-parameter fusion mathematical model.

[0085] Through the above technical solution, this application solves the problem that the manual adjustment of traditional sealing devices is lagging and cannot dynamically adapt to complex environmental conditions, and realizes closed-loop optimization control of the sealing state of the sealing mechanism 7.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water sampling device for geological mapping, comprising a connecting base (1), characterized in that, The connecting seat (1) is fixedly connected to an electric push rod (3). The telescopic part of the electric push rod (3) is threadedly fixedly connected to a sampling tube (4). An electric drill bit (10) is provided at the lower end of the sampling tube (4). A filter assembly (5) is provided at the inlet of the sampling tube (4). The telescopic part of the electric push rod (3) is slidably and sealingly connected to a sealing mechanism (7). The fixed part of the electric push rod (3) is fixedly connected to an electric telescopic rod (6). The telescopic end of the electric telescopic rod (6) is horizontally slidably connected to the sealing mechanism (7). The telescopic end of the electric telescopic rod (6) is connected to a driving assembly (8). The driving assembly (8) can drive the sealing mechanism (7) to reciprocate horizontally. The sealing mechanism (7) can abut against the ground. The control system is used to adjust the sealing degree of the sampling tube (4) during sampling, and includes: The data acquisition module is used to acquire air environment data, soil condition data, and sampling device status data; The data processing module includes an air environment data processing unit, a soil condition data processing unit, and a sampling device condition data processing unit. The air environment data processing unit can construct an air environment data processing model based on air environment data and output air environment coefficients. The soil state data processing unit can construct a soil state data processing model based on soil state data and output soil state coefficients. The sampling device status data processing unit can construct a sampling device status data processing model based on the sampling device status data and output the sampling device status coefficients. The sealing adjustment module can import the current air environment coefficient, soil state coefficient and sampling device state coefficient into the pressure adjustment model to output the target pressure value, and adjust the pressure value between the sealing mechanism (7) and the ground.

2. The geological mapping water sampling device according to claim 1, characterized in that, The filter assembly (5) includes an electric baffle (51) and a protective base (52). The protective base (52) is fixedly connected to the sampling tube (4). The electric baffle (51) and the protective base (52) are vertically elastically slidably connected. The electric baffle (51) is set outside the water inlet of the sampling tube (4). A filter screen is provided in the electric baffle (51). A power supply connected to the electric baffle (51) is provided in the protective base (52). The sealing plate on the electric baffle (51) can be opened and closed under electric drive. A vibrator is provided on the electric baffle (51). The vibrator is electrically connected to the control system.

3. The geological mapping water sampling device according to claim 1, characterized in that, The sealing mechanism (7) includes a sealing seat (71), a roller (72), a pusher (73), and a clamping plate (74); The sealing seat (71) slides and seals with the telescopic part of the electric push rod (3). A roller (72) is rotatably connected in the groove on the bottom surface of the sealing seat (71). Several push seats (73) are fixedly connected to the bottom surface of the sealing seat (71).

4. The geological mapping water sampling device according to claim 3, characterized in that, The sealing seat (71) is connected to an air pump (9), and an air bag is provided in the sealing seat (71). The air pump (9) is connected to the air bag. The lower end face of the sealing seat (71) is provided with an annular hole (11) that communicates with the interior of the sealing seat (71). The opening groove on the bottom surface of the sealing seat (71) is rotatably connected to a retaining plate (74) through an elastic torsion spring. The opening groove at the bottom of the sealing seat (71) communicates with the interior of the sealing seat (71).

5. The geological mapping water sampling device according to claim 3, characterized in that, The telescopic end of the electric telescopic rod (6) is fixedly connected to a slider (12), and a groove (13) is provided in the sealing seat (71). The slider (12) is slidably connected in the groove (13), and a pressure sensor is provided on the bottom surface of the slider (12).

6. The geological mapping water sampling device according to claim 3, characterized in that, The drive assembly (8) includes a first motor (81) and a drive wheel (82). The first motor (81) is fixedly connected to the telescopic end of the electric telescopic rod (6). The output shaft of the first motor (81) is fixed with the drive wheel (82). The drive wheel (82) meshes with the gear ring on the upper part of the sealing seat (71).

7. The geological mapping water sampling device according to claim 1, characterized in that, The connector (1) is equipped with a temperature sensor, an air humidity sensor and a light intensity sensor. The air environment data includes temperature, humidity and light intensity. The temperature value of the temperature sensor, the humidity value of the air humidity sensor and the light intensity value of the light intensity sensor at the current moment are compared with the corresponding set reference environment data to obtain the temperature index, air humidity index and light intensity index. The air environment coefficient is obtained by weighting the temperature index, air humidity index and light intensity index.

8. The geological mapping water sampling device according to claim 7, characterized in that, The outer wall of the sampling tube (4) is equipped with a soil pressure sensor and a soil moisture sensor. The soil state data includes the lateral pressure of the soil on the sampling tube (4) and the soil moisture. The pressure value of the soil pressure sensor and the moisture value of the soil moisture sensor at the current moment are compared with the corresponding set benchmark data to obtain the soil pressure index and the soil moisture index. The soil pressure index and the soil moisture index are weighted to obtain the soil state coefficient.

9. The geological mapping water sampling device according to claim 8, characterized in that, The electric push rod (3) is equipped with a vibration sensor and a wind sensor. The sampling device status data includes vibration frequency value and wind speed value. The vibration frequency value of the vibration sensor and the wind speed value of the wind sensor at the current moment are compared with the corresponding set benchmark data to obtain the vibration index and wind speed index. The vibration index and wind speed index are weighted to obtain the sampling device status coefficient.

10. The geological mapping water sampling device according to claim 9, characterized in that, The specific working steps of the sealing adjustment module are as follows: A pressure adjustment model was constructed based on the air environment coefficient, soil state coefficient, and sampling device state coefficient. The current air environment coefficient, soil state coefficient and sampling device state coefficient are imported into the pressure adjustment model to output the target pressure value, and the pressure value between the sealing mechanism (7) and the ground is adjusted to the target pressure value. The pressure adjustment model is expressed as follows: in, Indicates the target pressure value. This indicates the set base pressure value. For air quality coefficient, Soil state coefficient, This is the state coefficient of the sampling device.

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