A soil detection device for geological survey engineering

Abstract

The present invention provides a soil detection device for geological exploration engineering, including a mobile drilling component which includes a lifting and moving component and a drilling component, and a drill bit is fixed on the drilling component; a plurality of soil storage tanks are arranged in the storage and detection component, and a plurality of time domain reflectometry sensors are evenly distributed on the lid of any soil storage tank; an electric control box is arranged on the detection device moving component, and a lower vehicle frame frame is arranged at the bottom. A column is arranged on the lower vehicle frame frame. The electric control box is connected to the mobile drilling component and the storage and detection component. The column is connected to the mobile drilling component. A circular through hole is arranged on the lower vehicle frame frame, and the circular through hole is directly opposite to the drill bit in the mobile drilling component. The storage and detection component is arranged on the lower vehicle frame frame. The electric control box is connected to the mobile drilling component, the drilling component, and the storage and detection component. A soil sample collection unit is arranged in the electric control box. The soil detection device for geological exploration engineering of the present invention improves work efficiency and can cope with various complex geological conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field of geological exploration, and particularly relates to a soil detection device for geological exploration engineering. Background Art

[0002] A soil detection device for geological exploration engineering is a specially designed device used to detect the physical and chemical properties of soil on-site or in a laboratory during geological exploration. This device usually includes multiple sensors and measurement tools, which can quickly and accurately obtain various parameters of the soil, providing a scientific basis for geological exploration.

[0003] Currently, the soil detection device for geological exploration engineering is usually equipped with a single sample collection tank. However, soil samples at different depths have different representative geological appearances. Single-tank collection cannot comprehensively reflect the characteristics of the soil, and the data collected from a single tank requires additional processing steps to distinguish the characteristics of soil samples at different depths, which affects the accuracy of the overall detection results and increases the complexity of the soil detection process. Summary of the Invention

[0004] In view of this, the present invention aims to provide a soil detection device for geological exploration engineering to solve the problems that single-tank collection cannot comprehensively reflect the characteristics of the soil, and the data collected from a single tank requires additional processing steps to distinguish the characteristics of soil samples at different depths, which affects the accuracy of the overall detection results and increases the complexity of the soil detection process.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] 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.

[0007] 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.

[0008] 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.

[0009] Further, the drilling component includes a first motor, a drilling component support frame, a second motor, a second motor bracket, a first lifting lead screw mounting seat, a driving gear, a driven gear, a lifting lead screw, a second lifting lead screw mounting seat, an electric cylinder, and a drill bit. The top of the lifting lead screw is connected to the first motor through a coupling and passes through the first lifting lead screw mounting seat. The first motor is fixed to the first lifting lead screw mounting seat through a first motor bracket and is locked to the column. The drilling component support frame is fixed to the lifting slider. The drilling component support frame is provided with a lead screw fixing seat mounting hole. The lifting lead screw is connected to the drilling component support frame through a lead screw nut. The lifting lead screw is connected to the second lifting lead screw mounting seat. The second lifting lead screw mounting seat is fixed and locked to the column. A triangular reinforcing plate is installed at the horizontal connection part and the vertical connection part of the drilling component support frame. The lower part of the vertical connection part of the drilling component support frame fixes the second motor bracket. The electric cylinder is fixed to the vertical connection 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 to which the drill bit is fixed. The driven gear is fixed to the drill rod. The driven gear meshes with the driving gear. The first motor is connected to a first motor encoder. The second motor is connected to a second motor encoder. A pressure sensor is provided on the drill bit. The electric cylinder 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.

[0010] Further, the inner wheels of the driven moving component are connected by a wheel driven coupling shaft and are arranged in the driven component fixed housing. The inner wheels of the driving moving component are connected by a driving coupling shaft, and a driven bevel gear is provided on the driving coupling shaft. The driven bevel gear meshes with the driving bevel gear. The driving bevel gear is fixed to the output shaft of the fourth motor. The driving moving component and the driven moving component are connected by a lower vehicle frame frame and the driving moving component is fixed in the driving component fixed housing. The electric control box is fixed to the driving component fixed housing. The fourth motor is connected to a fourth motor encoder, and the fourth motor encoder is connected to the electric control box.

[0011] Further, a preset GPS navigation unit is provided in the soil sample collection unit. The navigation component of the GPS navigation unit is arranged on the soil quality detection device. A preset sampling location is provided in the soil sample collection unit. When the soil quality 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] Compared with the prior art, the soil quality detection device for geological survey engineering described in the present invention has the following advantages:

[0016] 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.

[0017] After the soil sample collection unit in the present invention completes the soil sample collection, several Time Domain Reflectometry (TDR) sensors are used to detect the moisture content of the collected soil samples in real time. The TDR sensors calculate the moisture content of the soil by sending short electromagnetic pulse signals to the soil and measuring the propagation time of the pulse signals in the soil, and can quickly and accurately measure the Volumetric Water Content (VWC) of the soil. During the detection process, the fourth motor maintains a paused state, and after the detection is completed, the fourth motor can move, thereby preventing the drill bit from affecting the detection process during the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0019] In the drawings:

[0020] Figure 1 is an axonometric schematic diagram of the soil quality detection device for geological survey engineering according to an embodiment of the present invention;

[0021] Figure 2 is a front view schematic diagram of the soil quality detection device for geological survey engineering according to an embodiment of the present invention;

[0022] Figure 3 is a side view schematic diagram of the soil quality detection device for geological survey engineering according to an embodiment of the present invention;

[0023] Figure 4 is a top view schematic diagram of the soil quality detection device for geological survey engineering according to an embodiment of the present invention.

[0024] DESCRIPTION OF THE REFERENCE NUMERALS:

[0025] 1, wheels; 2, electric control box; 3, column; 4, first motor; 5, first motor bracket; 6, lifting guide rail; 7, drill assembly support frame; 8, second motor; 9, second motor bracket; 10, drill bit; 11, active moving assembly; 12, soil storage tray; 13, lower vehicle 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 rod; 22, third motor; 23, fourth motor; 24, driven bevel gear; 25, active bevel gear; 26, wheel driven coupling shaft; 27, electric cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the 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 thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0029] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0030] Refer to Figures 1-4As 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.

[0031] 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.

[0032] 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.

[0033] Specifically, in this embodiment, the drilling component includes a first motor 4, a drilling component support frame 7, a second motor 8, a second motor support 9, a first lifting lead screw mounting base 14, a driving gear 16, a driven gear 17, a lifting lead screw 21, a second lifting lead screw mounting base 20, an electric cylinder 27, and a drill bit 10. The top of the lifting lead screw 21 is connected to the first motor 4 through a coupling and passes through the first lifting lead screw mounting base 14. The first motor 4 is fixed to the first lifting lead screw mounting base 14 through a first motor support 5, and the first motor 4 is locked to the column 3. The drilling component support frame 7 is fixed on the lifting slider 15. The drilling component support frame 7 is provided with a lead screw fixing seat mounting hole. The lifting lead screw 21 is connected to the drilling component support frame 7 through a lead screw nut. The lifting lead screw 21 is connected to the second lifting lead screw mounting base 20, and the second lifting lead screw mounting base 20 is fixed and locked to the column 3. A triangular reinforcing plate is installed at the horizontal connection part and the vertical connection part of the drilling component support frame 7. The lower part of the vertical connection part of the drilling component support frame 7 is fixed with the second motor support 9. The electric cylinder 27 is fixed on the vertical connection part of the drilling component support frame 7. The second motor 8 is fixed on the second motor support 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 with the drill bit 10. The driven gear 17 is fixed on the drill rod, and the driven gear 17 meshes 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, 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.

[0034] Specifically, in this embodiment, the inner wheels 1 of the driven moving component are connected through a wheel driven coupling shaft 26, and the driven moving component is arranged in the driven component fixed housing. The inner wheels 1 of the driving moving component 11 are connected through a driving coupling shaft, and a driven bevel gear 24 is provided on the driving coupling shaft. The driven bevel gear 24 meshes with the driving bevel gear 25. The driving bevel gear 25 is fixed on the output shaft of the fourth motor 23. The driving moving component 11 and the driven moving component are connected through a lower vehicle frame frame 13, and the driving moving component 11 is fixed in the driving component fixed housing. The electric control box 2 is fixed on the driving component fixed housing. The fourth motor 23 is connected to a fourth motor encoder, and the fourth motor encoder is connected to the electric control box 2.

[0035] Specifically, in this embodiment, a preset GPS navigation unit is provided in the soil sample collection unit. The navigation component of the GPS navigation unit is arranged on the soil quality detection device. When the soil quality 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.

[0036] Specifically, in this embodiment, an infrared sensor is provided at the lower part of the first lifting lead screw mounting seat of the soil quality 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 for the first motor are set in the soil sample collection unit. The infrared sensor is used to detect the real-time position of the support frame of the drilling component. When lifting and lowering are controlled by the first motor, when the real-time position of the support frame of the drilling component reaches the maximum lifting position, the first motor stops lifting. If further lifting of the support frame of the taking component is required, the electric cylinder is driven to lift; when the real-time position of the support frame of the drilling component reaches the minimum lowering position, the first motor stops lowering; when the support frame of the drilling component continues to be lowered, the electric cylinder is driven to lower until the drill bit reaches the drill bit starting position.

[0037] A maximum lifting position for the first motor is set in the soil sample collection unit and a minimum lowering position , and the infrared sensor is used to detect the real-time position of the support frame of the drilling component, that is , and the units of all three are m.

[0038] When lifting and lowering are controlled by the first motor, when the real-time position of the support frame of the drilling component reaches the maximum lifting position , the first motor stops lifting. If further lifting of the support frame of the taking component is required, the electric cylinder is driven to lift; when the real-time position of the support frame of the drilling component reaches the minimum lowering position , the first motor stops lowering; when the support frame of the drilling component continues to be lowered, the electric cylinder is driven to lower until the drill bit reaches the drill bit starting position.

[0039] Through the cooperation of the infrared sensor and the motor encoder, the soil quality detection device can achieve high-precision control of the position of the support frame of the drilling component, ensuring the accuracy and reliability of soil sample collection. Moreover, the entire 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 requirements. By adjusting the stroke of the electric cylinder and the control parameters of the motor, it can cope with various complex geological conditions.

[0040] 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. There is a pressure range threshold 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 prompt for soil hardness risk appears in the soil sample collection unit, and the real-time position of the drill bit is recorded at this time. The real-time position of the drill bit is determined according to the real-time position of the drilling assembly support frame and the position of the electric cylinder piston detected by the position sensor.

[0041] During the soil sample collection process, the drill bit needs to drill under different soil conditions, and the hardness and type of the soil will directly affect the drilling efficiency and safety. 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 rotation speed of the drill bit according to the pressure situation. 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.

[0042] The soil sample collection unit determines the real-time pressure detected by the pressure sensor during the drilling and collection process of the drill bit , whose unit is N, so as to determine the real-time rotation speed of the second motor encoder , whose unit is . Calculate the actual pressure during the drilling and collection process and the limit pressure of the real-time pressure difference The calculation process of the real-time pressure difference is: .

[0043] The limit pressure is related to the material of the drill bit, that is, the drill bit material used for different geological conditions is changed according to its usage, and the limit pressure in the soil sample collection unit can also be changed. The pressure range threshold is , where is the maximum pressure threshold, is the minimum pressure threshold.

[0044] When the real-time pressure difference is 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.

[0045] 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.

[0046] 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.

[0047] 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 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, and 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. The detection device moving assembly is provided with an electric control box (2), a lower frame (13) is provided at the bottom, and a column (3) is provided 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 is directly opposite to the drill bit (10) in the mobile drilling assembly, the storage detection assembly is arranged on the lower frame (13), the electric control box (2) is connected with 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, and in any soil sample collection process, sequentially adjust the first motor and the electric cylinder 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 drill bit drilling and collection process, and after completing any soil sample collection process, after all the collected soil samples are detected, a completion prompt is given and a prompt for releasing the fourth motor from stopping appears; 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 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 (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). The drilling component includes a first motor (4), a drilling component 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 of the lifting screw rod (21) is connected to the first motor (4) through a coupling passing through the first lifting screw rod mounting seat (14). The first motor (4) is fixed to the first lifting screw rod mounting seat (14) through a first motor bracket (5), and the first motor (4) is locked to the column (3). The drilling component support frame (7) is fixed on the lifting slider (15). A screw rod fixing seat mounting hole is provided on the drilling component support frame (7). The lifting screw rod (21) is connected to the drilling component support frame (7) through a screw rod nut. The lifting screw rod (21) is connected to the second lifting screw rod mounting seat (20), and the second lifting screw rod mounting seat (20) is fixed and locked to the column (3). A triangular reinforcing plate is installed at the horizontal connection part and the vertical connection part of the drilling component support frame (7). The lower part of the vertical connection part of the drilling component support frame (7) fixes the second motor bracket (9). The electric cylinder (27) is fixed on the vertical connection part of the drilling component support frame (7). The 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 with the drill bit (10). A driven gear (17) is fixed on the drill rod. The driven gear (17) meshes 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, 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). The inner wheels (1) of the driven moving component are connected through a wheel driven coupling shaft (26), and the driven moving component is arranged inside the driven component fixed shell. The inner wheels (1) of the driving moving component (11) are connected through a driving coupling shaft, and a driven bevel gear (24) is provided on the driving coupling shaft. The driven bevel gear (24) meshes with a driving bevel gear (25). The driving bevel gear (25) is fixed on the output shaft of the fourth motor (23). The driving moving component (11) is connected to the driven moving component through a lower vehicle frame frame (13), and the driving moving component (11) is fixed inside the driving component fixed shell. The 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).

2. The soil detection device for geological exploration engineering according to claim 1, wherein, 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 on the side of the column (3), and the lifting slider (15) is slidably connected on the lifting guide rail (6).

3. The soil 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.

4. The soil detection device for geological survey engineering according to claim 3, 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.

5. The soil detection device for geological survey engineering according to claim 3, 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.

6. The soil detection device for geological survey engineering according to claim 3, 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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