Soil texture detection device for geological survey engineering

Abstract

The invention provides a soil texture detection device for geological survey engineering, and the soil texture detection device comprises a movable drilling assembly which comprises a lifting moving assembly and a drilling assembly, and a drill bit is fixed on the drilling assembly; a plurality of soil storage tanks are arranged in each storage detection assembly, and a plurality of time domain reflection method sensors are uniformly distributed on a tank cover of any soil storage tank; the detection device moving assembly is provided with an electric cabinet, the bottom of the detection device moving assembly is provided with a lower vehicle frame, the lower vehicle frame is provided with a stand column, the electric cabinet is connected with the moving drilling assembly and the storage detection assembly, the stand column is connected with the moving drilling assembly, the lower vehicle frame is provided with a circular through hole, and the circular through hole right faces a drill bit in the moving drilling assembly. The storage detection assembly is arranged on the lower frame, the electric cabinet is connected with the movable drilling assembly, the drilling assembly and the storage detection assembly, and a soil sample collection unit is arranged in the electric cabinet. According to the soil texture detection device for geological survey engineering, the working efficiency is improved, and various complex geological conditions can be coped with.

Description

Technical Field

[0001] The invention belongs to the technical field of geological survey, and in particular relates to a soil quality detection device for geological survey engineering. Background Art

[0002] The soil testing device used in geological survey engineering is a specially designed device used to conduct on-site or laboratory testing of the physical and chemical properties of soil during geological surveys. The device usually includes multiple sensors and measuring tools, which can quickly and accurately obtain various parameters of the soil and provide a scientific basis for geological surveys.

[0003] At present, soil quality testing devices used in geological survey projects are usually equipped with a single sample collection tank, but soil samples at different depths have different representative geological features. Single tank collection cannot fully reflect the characteristics of the soil, and the data collected by a single tank requires additional processing steps to distinguish the characteristics of soil samples at different depths, which affects the accuracy of the overall test results and increases the complexity of the soil quality testing process. Summary of the invention

[0004] In view of this, the present invention aims to propose a soil testing device for geological survey engineering to solve the problem that a single tank collection cannot fully reflect the characteristics of the soil, and the data collected by a single tank requires additional processing steps to distinguish the characteristics of soil samples at different depths, which affects the accuracy of the overall test results and increases the complexity of the soil testing process.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows: The present invention provides a soil quality detection device for geological survey engineering, comprising: a mobile drilling assembly, which is used for collecting soil samples at different depths, the mobile drilling assembly comprising a lifting and moving assembly and a drilling assembly, a drill bit is fixed on the drilling assembly, and the lifting and moving assembly is locked with the drilling assembly; a storage detection assembly, which is used for soil quality detection of soil samples collected at different depths, a plurality of soil storage tanks are arranged in the storage detection assembly, and a plurality of time domain reflection method sensors are evenly distributed on the tank cover of any soil storage tank; a detection device moving assembly, which is used for the overall movement of the soil quality detection device, an electric control box is arranged on the detection device moving assembly, a lower frame is arranged at the bottom, a column is arranged on the lower frame, the electric control box is connected to the mobile drilling assembly and the storage detection assembly, and the column is connected to the mobile drilling assembly The mobile drilling assembly is connected, a circular through hole is arranged on the lower frame, and the circular through hole is directly opposite to the drill bit in the mobile drilling assembly. The storage and detection assembly is arranged on the lower frame, and the electric control box is connected with the mobile drilling assembly, the drilling assembly and the storage and detection assembly. A soil sample collection unit is arranged in the electric control box, and the soil sample collection unit is used to control the soil detection device to arrive at the predetermined sampling location, and adjust the first motor and the electric cylinder in sequence during any soil sample collection process until the drill bit reaches the drill bit lifting stop position or the drill bit starting position, and determine the real-time speed of the second motor encoder and the soil hardness risk prompt according to the real-time pressure during the drilling and collection process of the drill bit. After completing any soil sample collection process, a completion prompt is given after all the collected soil samples are detected and a prompt to release the stop of the fourth motor appears.

[0006] Furthermore, the storage detection component includes a soil storage tank, a soil storage tray, a soil sample rotating shaft, a third motor, a third motor encoder, and a tank cover. The third motor is connected to the top of the soil sample rotating shaft through a coupling, and the bottom of the soil sample rotating shaft is connected to the lower frame through a rotating shaft fixing seat and a bearing. The upper part of the soil storage tank is provided with a bent edge, which is stuck in the soil storage tank fixing hole of the soil storage tray. The soil storage tray is fixed on the soil sample rotating shaft. The third motor is connected to the lower frame through a motor mounting plate, the third motor is connected to the third motor encoder, the electric control box is connected to the third motor encoder and several time domain reflectometry sensors on the tank cover, and the tank cover is hinged to the soil storage tank.

[0007] Furthermore, the lifting and moving assembly includes a column, a lifting guide rail, and a lifting slider. The lifting guide rail is fixed to the side of the column, and the lifting slider is slidably connected to the lifting guide rail.

[0008] Furthermore, the drilling assembly includes a first motor, a drilling assembly support frame, a second motor, a second motor support, a first lifting screw rod mounting seat, a driving gear, a driven gear, a lifting screw rod, a second lifting screw rod mounting seat, an electric cylinder, and a drill bit. The top end of the lifting screw rod passes through the first lifting screw rod mounting seat and is connected to the first motor through a coupling. The first motor is fixed to the first lifting screw rod mounting seat through the first motor support. The first motor is locked on the column. The drilling assembly support frame is fixed on the lifting slider. The drilling assembly support frame is provided with a screw rod fixing seat mounting hole. The lifting screw rod is connected to the drilling assembly support frame through a screw rod nut. The lifting screw rod is connected to the second lifting screw rod mounting seat. The second lifting screw rod mounting seat is fixed and locked on the column. A triangular reinforcing plate is installed on the horizontal connecting part and the vertical connecting part of the component support frame, the second motor bracket is fixed to the lower part of the vertical connecting part of the drilling component support frame, the electric cylinder is fixed to the vertical connecting part of the drilling component support frame, the second motor is fixed to the second motor bracket, the second motor is connected to the fixed shaft of the driving gear through a coupling, the electric cylinder is connected to the drill rod fixed to the drill bit, the driven gear is fixed on the drill rod, and the driven gear is meshed with the driving gear; the first motor is connected to the first motor encoder, the second motor is connected to the second motor encoder, a pressure sensor is arranged on the drill bit, the electric cylinder is connected to the position sensor, the first motor encoder, the second motor encoder, the pressure sensor, and the position sensor are respectively connected to the electric control box.

[0009] Furthermore, the wheels in the driven moving component are connected through a wheel driven coupling, and the driven moving component is arranged in a driven component fixed shell, the wheels in the active moving component are connected through a driving coupling, and a driven bevel gear is arranged on the driving coupling, the driven bevel gear and the driving bevel gear are meshed with each other, the driving bevel gear is fixed on the output shaft of the fourth motor, the active moving component and the driven moving component are connected through the lower frame, and the active moving component is fixed in the active component fixed shell, the active component fixed shell is fixed with an electric control box, the fourth motor is connected to a fourth motor encoder, and the fourth motor encoder is connected to the electric control box.

[0010] Furthermore, a preset GPS navigation unit is provided in the soil sample collection unit, and the navigation component of the GPS navigation unit is provided on the soil detection device. A preset sampling location is provided in the soil sample collection unit. When the soil detection device reaches the preset sampling location, the GPS navigation unit controls the fourth motor to stop through the fourth motor encoder and the third encoder controls the third motor to stop at this time, and a collection prompt appears in the soil sample collection unit.

[0011] Furthermore, an infrared sensor is provided at the lower part of the first lifting screw mounting seat of the soil detection device, and the infrared sensor is connected to the first motor encoder; during any soil sample collection process, a maximum lifting position and a minimum lowering position, a drill stop position, and a drill start position for the first motor are provided in the soil sample collection unit, the drill lift stop position is the maximum position of the drill lift, and the drill start position is the starting rotation position of the drill at a certain distance from the ground, and the infrared sensor is used to detect the real-time position of the drilling component support frame. When the first motor controls the lifting and lowering, when the real-time position of the drilling component support frame reaches the maximum lifting position, the first motor no longer lifts, and if the drilling component support frame needs to be lifted, the electric cylinder is driven to lift until the drill reaches the drill lift stop position; when the real-time position of the drilling component support frame reaches the minimum lowering position, the first motor no longer lowers; when the drilling component support frame continues to be lowered, the electric cylinder is driven to lower until the drill reaches the drill start position.

[0012] Furthermore, the soil sample collection unit determines the real-time rotation speed of the second motor encoder according to the real-time pressure detected by the pressure sensor during the drilling and collection process of the drill bit, and calculates the real-time pressure difference between the actual pressure and the limit pressure during the drilling and collection process. The limit pressure is related to the material of the drill bit. A pressure range threshold is set in the soil sample collection unit, which includes a maximum pressure threshold and a minimum pressure threshold. When the real-time pressure difference is equal to the maximum pressure threshold, the second motor encoder controls the second motor to stop rotating, and a red soil hardness risk prompt appears in the soil sample collection unit, and the real-time position of the drill bit at this time is recorded. The real-time position of the drill bit is determined according to the real-time position of the drilling component support frame and the electric cylinder piston position detected by the position sensor.

[0013] Furthermore, after completing all soil sample collection processes, the soil sample collection unit detects the real-time moisture content of the sample soil based on the detection results of several time domain reflectometry sensors, and after all the collected soil sample detection is completed, a detection completion prompt appears in the soil sample collection unit, and a prompt to release the fourth motor from stopping appears.

[0014] Compared with the prior art, the soil quality detection device for geological survey engineering described in the present invention has the following advantages: The soil quality detection device of the present invention can realize high-precision control of the position of the drilling component support frame through the cooperation of the infrared sensor and the motor encoder, ensuring the accuracy and reliability of soil sample collection, and the whole process is automatically completed by the sensor and the encoder, reducing manual intervention and improving work efficiency. The soil quality detection device can adapt to different soil quality detection needs, and can cope with various complex geological conditions by adjusting the stroke of the electric cylinder and the control parameters of the motor.

[0015] After the soil sample collection unit in the present invention completes the soil sample collection, it will use a number of time domain reflectometry (TDR) sensors to perform real-time moisture content detection on the collected soil samples. The TDR sensor calculates the moisture content of the soil by sending a short electromagnetic pulse signal to the soil and measuring the propagation time of the pulse signal in the soil. It can quickly and accurately measure the volumetric water content (VWC) of the soil. During the detection process, the fourth motor maintains a pause state, and after the detection is completed, the fourth motor can move, thereby preventing the drill bit from moving during the detection and affecting the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] In the attached picture: Figure 1 It is an axonometric schematic diagram of a soil quality detection device for geological survey engineering according to an embodiment of the present invention; Figure 2 A schematic diagram of a front view of a soil quality detection device for geological survey engineering according to an embodiment of the present invention; Figure 3 A side view schematic diagram of a soil quality detection device for geological survey engineering according to an embodiment of the present invention; Figure 4 It is a schematic top view of a soil quality detection device for geological survey engineering according to an embodiment of the present invention.

[0018] Description of reference numerals: 1. Wheel; 2. Electric control box; 3. Column; 4. First motor; 5. First motor bracket; 6. Lifting guide rail; 7. Drilling assembly support frame; 8. Second motor; 9. Second motor bracket; 10. Drill bit; 11. Active moving assembly; 12. Soil storage tray; 13. Lower frame; 14. First lifting screw rod mounting seat; 15. Lifting slider; 16. Active gear; 17. Driven gear; 18. Soil storage tank; 19. Soil sample rotating shaft; 20. Second lifting screw rod mounting seat; 21. Lifting screw; 22. Third motor; 23. Fourth motor; 24. Driven bevel gear; 25. Active bevel gear; 26. Wheel driven coupling shaft; 27. Electric cylinder. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0023] See also Figure 1-Figure 4As shown, this embodiment provides a soil quality detection device for geological survey engineering, including a mobile drilling assembly, which is used to collect soil samples at different depths. The mobile drilling assembly includes a lifting and moving assembly and a drilling assembly. The drill bit is fixed on the drilling assembly, and the lifting and moving assembly is locked with the drilling assembly; a storage detection assembly, which is used to perform soil quality detection on soil samples collected at different depths. A plurality of soil storage tanks 18 are arranged in the storage detection assembly, and a plurality of time domain reflection method sensors are evenly distributed on the tank cover of any soil storage tank; a detection device moving assembly, which is used to move the soil quality detection device as a whole. An electric control box 2 is arranged on the detection device moving assembly, a lower frame frame 13 is arranged at the bottom, and a column 3 is arranged on the lower frame frame 13. The electric control box 2 is connected to the mobile drilling assembly and the storage detection assembly, and the column 3 is connected to the mobile drilling assembly The components are connected, a circular through hole is arranged on the lower frame frame 13, and the circular through hole is directly opposite to the drill bit 10 in the mobile drilling assembly. The storage and detection assembly is arranged on the lower frame frame 13. The electric control box 2 is connected with the mobile drilling assembly, the drilling assembly and the storage and detection assembly. A soil sample collection unit is arranged in the electric control box 2. The soil sample collection unit is used to control the soil detection device to arrive at the predetermined sampling location. During any soil sample collection process, the first motor and the electric cylinder are adjusted in sequence until the drill bit reaches the drill bit lifting stop position or the drill bit starting position, and the real-time speed of the second motor encoder and the soil hardness risk prompt are determined according to the real-time pressure during the drilling and collection process of the drill bit. After completing any soil sample collection process, a completion prompt is given after all the collected soil samples are tested and a prompt to release the stop of the fourth motor appears.

[0024] Specifically, in this embodiment, the storage detection component includes a soil storage tank 18, a soil storage tray 12, a soil sample rotating shaft 19, a third motor 22, a third motor encoder, and a tank cover. The third motor 22 is connected to the top of the soil sample rotating shaft 19 through a coupling, and the bottom of the soil sample rotating shaft 19 is connected to the lower frame frame 13 through a rotating shaft fixing seat and a bearing. A bent edge is provided on the upper part of the soil storage tank 18, which is stuck in the soil storage tank fixing hole of the soil storage tray 12. The soil storage tray 12 is fixed on the soil sample rotating shaft 19. The third motor 22 is connected to the lower frame frame 13 through a motor mounting plate, the third motor 22 is connected to the third motor encoder, the electric control box 2 is connected to the third motor encoder and several time domain reflectometry sensors on the tank cover, and the tank cover is hinged to the soil storage tank 18.

[0025] Specifically, in this embodiment, the lifting and moving assembly includes a column 3, a lifting guide rail 6, and a lifting slider 15. The lifting guide rail 6 is fixed to the side of the column 3, and the lifting slider 15 is slidably connected to the lifting guide rail 6.

[0026] Specifically, in the present embodiment, the drilling assembly includes a first motor 4, a drilling assembly support frame 7, a second motor 8, a second motor bracket 9, a first lifting screw rod mounting seat 14, a driving gear 16, a driven gear 17, a lifting screw rod 21, a second lifting screw rod mounting seat 20, an electric cylinder 27, and a drill bit 10. The top end of the lifting screw rod 21 passes through the first lifting screw rod mounting seat 14 through a coupling and is connected to the first motor 4. The first motor 4 is fixed to the first lifting screw rod mounting seat 14 through the first motor bracket 5. The first motor 4 is locked on the column 3. The drilling assembly support frame 7 is fixed on the lifting slider 15. The drilling assembly support frame 7 is provided with a screw rod fixing seat mounting hole. The lifting screw rod 21 is connected to the drilling assembly support frame 7 through a screw rod nut. The lifting screw rod 21 is connected to the second lifting screw rod mounting seat 20. The second lifting screw rod mounting seat 20 is fixed and locked on the column 3, a triangular reinforcing plate is installed on the horizontal connecting part and the vertical connecting part of the drilling component support frame 7, a second motor bracket 9 is fixed on the lower part of the vertical connecting part of the drilling component support frame 7, an electric cylinder 27 is fixed on the vertical connecting part of the drilling component support frame 7, a second motor 8 is fixed on the second motor bracket 9, the second motor 8 is connected to the fixed shaft of the driving gear 16 through a coupling, the electric cylinder 27 is connected to the drill rod fixed by the drill bit 10, a driven gear 17 is fixed on the drill rod, and the driven gear 17 is meshed with the driving gear 16; the first motor 4 is connected to the first motor encoder, the second motor 8 is connected to the second motor encoder, a pressure sensor is arranged on the drill bit 10, the electric cylinder 27 is connected to the position sensor, and the first motor encoder, the second motor encoder, the pressure sensor, and the position sensor are respectively connected to the electric control box 2.

[0027] Specifically, in the present embodiment, the wheel 1 in the driven moving component is connected through the wheel driven coupling 26, and the driven moving component is arranged in the driven component fixed shell, the wheel 1 in the active moving component 11 is connected through the active coupling, and the active coupling is provided with a driven bevel gear 24, the driven bevel gear 24 and the active bevel gear 25 are meshed with each other, the active bevel gear 25 is fixed on the output shaft of the fourth motor 23, the active moving component 11 is connected to the driven moving component through the lower frame frame 13, and the active moving component 11 is fixed in the active component fixed shell, the active component fixed shell is fixed with the electric control box 2, the fourth motor 23 is connected to the fourth motor encoder, and the fourth motor encoder is connected to the electric control box 2.

[0028] Specifically, in this embodiment, a preset GPS navigation unit is provided in the soil sample collection unit, and the navigation component of the GPS navigation unit is provided on the soil detection device. When the soil detection device reaches the preset sampling location, the GPS navigation unit controls the fourth motor to stop through the fourth motor encoder and at this time the third encoder controls the third motor to stop, and a collection prompt appears in the soil sample collection unit.

[0029] Specifically, in this embodiment, an infrared sensor is provided at the lower part of the first lifting screw mounting seat of the soil detection device, and the infrared sensor is connected to the first motor encoder; during any soil sample collection process, a maximum lifting position and a lowest lowering position for the first motor are provided in the soil sample collection unit, and the infrared sensor is used to detect the real-time position of the drilling component support frame. When the first motor controls the lifting and lowering, when the real-time position of the drilling component support frame reaches the maximum lifting position, the first motor will no longer lift, and if the drilling component support frame needs to be lifted, the electric cylinder will be driven to lift; when the real-time position of the drilling component support frame reaches the lowest lowering position, the first motor will no longer be lowered; when the drilling component support frame continues to be lowered, the electric cylinder will be driven to lower until the drill bit reaches the drill bit start position.

[0030] The maximum lifting position for the first motor is set in the soil sample collection unit and the lowest lowering position , infrared sensor is used to detect the real-time position of the drilling component support frame, that is, , the unit of all three is m.

[0031] When the first motor is controlled to lift, the real-time position of the drilling assembly support frame is Reaching the maximum lifting position When the first motor is no longer lifted, if the component support frame needs to be lifted, the electric cylinder is driven to lift it; when the real-time position of the drilling component support frame is Reach the lowest lowering position When the drilling assembly support frame continues to be lowered, the electric cylinder is driven to be lowered until the drill bit reaches the drill starting position.

[0032] The soil detection device can achieve high-precision control of the position of the drilling component support frame through the cooperation of infrared sensors and motor encoders, ensuring the accuracy and reliability of soil sample collection. The entire process is automatically completed by sensors and encoders, reducing manual intervention and improving work efficiency. The soil detection device can adapt to different soil detection needs and can cope with various complex geological conditions by adjusting the stroke of the electric cylinder and the control parameters of the motor.

[0033] Specifically, in this embodiment, the soil sample collection unit determines the real-time rotation speed of the second motor encoder according to the real-time pressure detected by the pressure sensor during the drilling and collection process of the drill bit, and calculates the real-time pressure difference between the actual pressure and the limit pressure during the drilling and collection process. The limit pressure is related to the material of the drill bit. A pressure range threshold is set in the soil sample collection unit, which includes a maximum pressure threshold and a minimum pressure threshold. When the real-time pressure difference is equal to the maximum pressure threshold, the second motor encoder controls the second motor to stop rotating, and a red soil hardness risk prompt appears in the soil sample collection unit, and the real-time position of the drill bit at this time is recorded. The real-time position of the drill bit is determined according to the real-time position of the drilling component support frame and the electric cylinder piston position detected by the position sensor.

[0034] During soil sampling, the drill bit needs to drill under different soil conditions, and the hardness and type of the soil will directly affect the efficiency and safety of drilling. In order to ensure the safety and accuracy of the drilling process, it is necessary to monitor the pressure on the drill bit in real time and adjust the drill bit speed according to the pressure conditions. In addition, it is also necessary to set a pressure range threshold to prevent the drill bit from damaging the equipment or affecting the collection quality when encountering too hard soil.

[0035] The soil sample collection unit detects the real-time pressure of the pressure sensor during the drilling and collection process. , whose unit is N, thus determining the real-time speed of the second motor encoder , whose unit is . Calculate the actual pressure during the drilling and collection process With limiting pressure Real-time pressure difference The calculation process of real-time pressure difference is: .

[0036] Limiting Pressure It is related to the material of the drill bit. That is, the drill bit material used for different geological conditions can be changed according to its usage. Similarly, the limiting pressure in the soil sample collection unit can also be changed. The pressure range threshold is ,in is the maximum pressure threshold, is the minimum pressure threshold.

[0037] When the real-time pressure difference Equal to the maximum pressure threshold When the second motor encoder controls the second motor to stop rotating, a red reminder of soil hardness risk appears in the soil sample collection unit, and the real-time position of the drill bit is recorded. The real-time position of the drill bit is determined according to the real-time position of the drilling component support frame and the position of the electric cylinder piston detected by the position sensor. This ensures that when abnormal soil hardness is detected, the soil sample collection unit in the soil detection device for geological survey engineering can respond in time to protect the safety of equipment and operators, while providing accurate soil sample drilling data support for subsequent operations.

[0038] Specifically, in this embodiment, after completing the soil sample collection process, the soil sample collection unit detects the real-time moisture content of the sample soil based on the detection results of several time domain reflectometry sensors, and after the detection is completed, a detection completion prompt appears in the soil sample collection unit, and a prompt to release the stop of the fourth motor appears.

[0039] After the soil sample collection unit completes the soil sample collection, it will use several time domain reflectometry (TDR) sensors to perform real-time moisture content detection on the collected soil samples. The TDR sensor calculates the moisture content of the soil by sending a short electromagnetic pulse signal to the soil and measuring the propagation time of the pulse signal in the soil. It can quickly and accurately measure the volumetric water content (VWC) of the soil. During the detection process, the fourth motor remains in a paused state, and after the detection is completed, the fourth motor can move, thereby preventing the drill bit from moving during the detection and affecting the detection process.

[0040] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil quality detection device for geological survey engineering, characterized in that: The invention comprises: a mobile drilling assembly, which is used for collecting soil samples at different depths; the mobile drilling assembly comprises a lifting and moving assembly and a drilling assembly; a drill bit is fixed on the drilling assembly, and the lifting and moving assembly is locked with the drilling assembly; a storage and detection assembly, which is used for soil quality detection of soil samples collected at different depths; a plurality of soil storage tanks (18) are arranged in the storage and detection assembly; a plurality of time domain reflectometry sensors are evenly distributed on the tank cover of any soil storage tank (18); a detection device moving assembly, which is used for the overall movement of the soil quality detection device; an electric control box (2) is arranged on the detection device moving assembly, a lower frame (13) is arranged at the bottom, a column (3) is arranged on the lower frame (13), the electric control box (2) is connected to the mobile drilling assembly and the storage and detection assembly, and the column (3) is connected to the mobile drilling assembly. The lower frame (13) is provided with a circular through hole, the circular through hole facing the drill bit (10) in the mobile drilling assembly. The storage detection assembly is provided on the lower frame (13). The electric control box (2) is connected to the mobile drilling assembly, the drilling assembly and the storage detection assembly. The electric control box (2) is provided with a soil sample collection unit. The soil sample collection unit is used to control the soil detection device to arrive at a predetermined sampling location. During any soil sample collection process, the first motor and the electric cylinder are sequentially adjusted until the drill bit reaches the drill bit lifting stop position or the drill bit starting position. The real-time speed of the second motor encoder and the soil hardness risk prompt are determined according to the real-time pressure during the drilling and collection process of the drill bit. After any soil sample collection process is completed, a completion prompt is given after all the collected soil samples are tested and a prompt to release the fourth motor stop is given.

2. The soil quality detection device for geological survey engineering according to claim 1 is characterized in that: The storage detection component comprises a soil storage tank (18), a soil storage tray (12), a soil sample rotating shaft (19), a third motor (22), a third motor encoder, and a tank cover. The third motor (22) is connected to the top of the soil sample rotating shaft (19) through a coupling. The bottom of the soil sample rotating shaft (19) is connected to the lower frame (13) through a rotating shaft fixing seat and a bearing. The upper part of the soil storage tank (18) is provided with a bent edge, which is clamped in the soil storage tank fixing hole of the soil storage tray (12). The soil storage tray (12) is fixed on the soil sample rotating shaft (19). The third motor (22) is connected to the lower frame (13) through a motor mounting plate. The third motor (22) is connected to the third motor encoder. The electric control box (2) is connected to the third motor encoder and a plurality of time domain reflectometry sensors on the tank cover. The tank cover is hinged to the soil storage tank (18).

3. The soil quality detection device for geological survey engineering according to claim 1 is characterized in that: The lifting and moving assembly comprises a column (3), a lifting guide rail (6), and a lifting slider (15); the lifting guide rail (6) is fixed to the side of the column (3), and the lifting slider (15) is slidably connected to the lifting guide rail (6).

4. The soil quality detection device for geological survey engineering according to claim 1 is characterized in that: The drilling assembly comprises a first motor (4), a drilling assembly support frame (7), a second motor (8), a second motor support frame (9), a first lifting screw rod mounting seat (14), a driving gear (16), a driven gear (17), a lifting screw rod (21), a second lifting screw rod mounting seat (20), an electric cylinder (27), and a drill bit (10). The top end of the lifting screw rod (21) passes through the first lifting screw rod mounting seat (14) through a coupling and is connected to the first motor (4). The first motor (4) is fixed to the first lifting screw rod mounting seat (14) through a first motor support frame (5). The first motor (4) is locked on the column (3). The drilling assembly support frame (7) is fixed on the lifting slider (15). The drilling assembly support frame (7) is provided with a screw rod fixing seat mounting hole. The lifting screw rod (21) is connected to the drilling assembly support frame (7) through a screw rod nut. The lifting screw rod (21) is connected to the second lifting screw rod mounting seat (20). The second lifting screw rod mounting seat (20) is fixed on the column (3). The drill assembly support frame (7) is locked on the column (3). A triangular reinforcing plate is installed between the horizontal connection part and the vertical connection part of the drill assembly support frame (7). The second motor support frame (9) is fixed to the lower part of the vertical connection part of the drill assembly support frame (7). The electric cylinder (27) is fixed to the vertical connection part of the drill assembly support frame (7). The second motor (8) is fixed to the second motor support frame (9). The second motor (8) is connected to the fixed shaft of the driving gear (16) through a coupling. The electric cylinder (27) is connected to a drill rod fixed to the drill bit (10). A driven gear (17) is fixed to the drill rod. The driven gear (17) is meshed with the driving gear (16). The first motor (4) is connected to a first motor encoder. The second motor (8) is connected to a second motor encoder. A pressure sensor is provided on the drill bit (10). The electric cylinder (27) is connected to a position sensor. The first motor encoder, the second motor encoder, the pressure sensor and the position sensor are respectively connected to the electric control box (2).

5. The soil quality detection device for geological survey engineering according to claim 1, characterized in that: The wheels (1) in the driven moving component are connected via a wheel driven coupling (26), and the driven moving component is arranged in a driven component fixed shell. The wheels (1) in the driving moving component (11) are connected via a driving coupling, and a driven bevel gear (24) is arranged on the driving coupling. The driven bevel gear (24) and the driving bevel gear (25) are meshed with each other. The driving bevel gear (25) is fixed on the output shaft of a fourth motor (23). The driving moving component (11) is connected to the driven moving component via a lower frame (13), and the driving moving component (11) is fixed in a driving component fixed shell. An electric control box (2) is fixed on the driving component fixed shell. The fourth motor (23) is connected to a fourth motor encoder, and the fourth motor encoder is connected to the electric control box (2).

6. The soil quality detection device for geological survey engineering according to claim 1, characterized in that: A preset GPS navigation unit is provided in the soil sample collection unit, and the navigation component of the GPS navigation unit is provided on the soil detection device. A preset sampling location is provided in the soil sample collection unit. When the soil detection device reaches the preset sampling location, the GPS navigation unit controls the fourth motor to stop through the fourth motor encoder and the third encoder controls the third motor to stop at this time, and a collection prompt appears in the soil sample collection unit.

7. The soil quality detection device for geological survey engineering according to claim 6, characterized in that: An infrared sensor is provided at the lower part of the first lifting screw mounting seat of the soil detection device, and the infrared sensor is connected to the first motor encoder; during any soil sample collection process, a maximum lifting position and a minimum lowering position, a drill stop position, and a drill start position for the first motor are provided in the soil sample collection unit, the drill lift stop position is the maximum position of the drill lift, and the drill start position is the starting rotation position of the drill at a certain distance from the ground, and the infrared sensor is used to detect the real-time position of the drilling component support frame. When the lifting controlled by the first motor is performed, when the real-time position of the drilling component support frame reaches the maximum lifting position, the first motor will no longer lift, and if the drilling component support frame needs to be lifted, the electric cylinder will be driven to lift until the drill reaches the drill lift stop position; when the real-time position of the drilling component support frame reaches the minimum lowering position, the first motor will no longer be lowered; when the drilling component support frame continues to be lowered, the electric cylinder will be driven to lower until the drill reaches the drill start position.

8. The soil quality detection device for geological survey engineering according to claim 6, characterized in that: The soil sample collection unit determines the real-time rotation speed of the second motor encoder according to the real-time pressure detected by the pressure sensor during the drilling and collection process of the drill bit, and calculates the real-time pressure difference between the actual pressure and the limit pressure during the drilling and collection process. The limit pressure is related to the material of the drill bit. A pressure range threshold is set in the soil sample collection unit, which includes a maximum pressure threshold and a minimum pressure threshold. When the real-time pressure difference is equal to the maximum pressure threshold, the second motor encoder controls the second motor to stop rotating, and a red soil hardness risk prompt appears in the soil sample collection unit, and the real-time position of the drill bit at this time is recorded. The real-time position of the drill bit is determined according to the real-time position of the drilling component support frame and the electric cylinder piston position detected by the position sensor.

9. The soil quality detection device for geological survey engineering according to claim 6, characterized in that: After completing all soil sample collection processes, the soil sample collection unit detects the real-time moisture content of the sample soil based on the detection results of several time domain reflectometry sensors. After all the collected soil samples are detected, a detection completion prompt appears in the soil sample collection unit, and a prompt to release the fourth motor from stopping appears.

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