An automatic soil sampling device

Abstract

The application provides an automatic soil sampling device, and relates to the technical field of soil sampling. The device comprises a chassis, a rotating mechanism, a soil sampling pipe and a soil pushing rod. The rotating mechanism is rotationally connected to the chassis, and a first driving mechanism is arranged between the rotating mechanism and the chassis. The soil sampling pipe is connected to the rotating mechanism through a second driving mechanism, and can be perpendicular to the ground with the rotation of the rotating mechanism. The second driving mechanism is used for driving the soil sampling pipe to ascend and descend. A third driving mechanism is further arranged on the rotating mechanism, and is used for driving the soil pushing rod to move in the soil sampling pipe, so that the soil sample in the soil sampling pipe is pushed out. The application realizes the whole process of the verticality, descent, soil sampling, ascent and soil sample pushing out of the soil sampling pipe and the ground, and the whole process has high automation degree and does not need manual operation, so that the soil sample acquisition efficiency is effectively improved. The whole device has simple structure and is convenient to carry on the light vehicle for mobile transportation.

Description

Technical Field

[0001] This application belongs to the field of soil sampling technology, and in particular relates to an automatic soil sampling device. Background Technology

[0002] In oil seismic exploration operations, especially in transitional areas such as tidal flats, swamps, and farmland, construction equipment (such as controlled seismic source vehicles) is highly susceptible to accidents involving getting stuck, leading to production stoppages and high rescue costs. To avoid such accidents, seismic teams must conduct detailed reconnaissance before construction to confirm the underground soil properties and water content, thereby assessing the surface bearing capacity (loose soil layers with high water content are prone to causing equipment to get stuck).

[0003] Currently, there are two main reconnaissance methods: one is to use heavy vehicles to drive along the survey line and judge the possibility of subsequent equipment passing based on the depth of the ruts. This method itself has the risk of missing the vehicle and occupies equipment and has poor mobility; the other is to manually dig exploratory pits. This method is extremely labor-intensive, inefficient, and difficult to implement when encountering hard surfaces (such as salt and alkali crystal crusts).

[0004] Some manual or electric soil sampling tools on the market require manual operation and cannot provide sufficient penetration power, making it difficult to meet the needs of high-efficiency and high-reliability engineering surveys. Therefore, there is an urgent need for a specialized device that can quickly, automatically, and effectively obtain underground soil samples, and has a simple structure that can be mounted on light vehicles for mobile transportation. Utility Model Content

[0005] The purpose of this application is to provide an automatic soil sampling device, which aims to solve or partially solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this application is implemented as follows: This application provides an automatic soil sampling device, which includes a chassis, a rotating mechanism, a soil sampling tube, and a bulldozer rod; The rotating mechanism is rotatably connected to the chassis, and a first driving mechanism is provided between the rotating mechanism and the chassis. The first driving mechanism is used to drive the rotating mechanism to rotate relative to the chassis. The soil sampling pipe is connected to the rotating mechanism via a second driving mechanism. The soil sampling pipe can rotate to be perpendicular to the ground as the rotating mechanism rotates, and the first end of the soil sampling pipe perpendicular to the ground faces the ground. The second driving mechanism is used to drive the soil sampling pipe perpendicular to the ground to move relative to the rotating mechanism so that the first end of the soil sampling pipe can be inserted into or removed from the ground. The first end of the bulldozer rod enters the soil sampling tube from the second end of the soil sampling tube. The rotating mechanism is also provided with a third driving mechanism, which is used to drive the first end of the bulldozer rod to move towards the first end of the soil sampling tube inside the soil sampling tube, thereby pushing the soil sample in the soil sampling tube out from the first end of the soil sampling tube.

[0007] Optionally, the first drive mechanism includes a first hydraulic rod, the two ends of which are respectively hinged to the rotating mechanism and the chassis; The second driving mechanism includes a second hydraulic rod, the second end of which is disposed on the rotating mechanism, the first end of which is connected to the soil sampling pipe, and the extension and retraction direction of the second end of the second hydraulic rod is parallel to the axial direction of the soil sampling pipe. The third driving mechanism includes a third hydraulic rod, the second end of which is disposed on the rotating mechanism, and the first end of which cooperates with the bulldozer rod to drive the first end of the bulldozer rod to move toward the first end of the soil sampling pipe inside the soil sampling pipe.

[0008] Optionally, the third hydraulic rod is arranged side by side with the second hydraulic rod, and the extension direction of the first end of the third hydraulic rod is parallel to the extension direction of the first end of the second hydraulic rod; The first end of the bulldozer rod is slidably engaged with the soil sampling pipe, and the second end of the bulldozer rod extends out from the second end of the soil sampling pipe. The second end of the bulldozer rod is provided with an outwardly extending push plate, which blocks the extension and retraction path of the first end of the third hydraulic rod.

[0009] Optionally, the second hydraulic rod is connected to the soil sampling pipe via a guide. The guide member has a guide chamber, which is connected to the second end of the soil sampling pipe. The second end of the bulldozer rod is located in the guide chamber and can move within the guide chamber. The guide member has a guide opening on one or both sides of the guide chamber. The pusher plate extends from the guide opening to the outside of the guide member, and the width of the pusher plate is adapted to the width of the guide opening.

[0010] Optionally, the length of the guide chamber is less than the length of the bulldozer rod.

[0011] Optionally, the first end of the third hydraulic rod is provided with a first pin hole, and the push plate is provided with a sleeve corresponding to the first end of the third hydraulic rod. The sleeve is configured to be able to be fitted over the first end of the third hydraulic rod, and the sleeve is provided with a second pin hole that is adapted to the first pin hole.

[0012] Optionally, the rotating mechanism is provided with a first position sensor and a second position sensor, which are arranged at intervals along the extension direction of the first end of the second hydraulic rod. The first end of the second hydraulic rod is provided with a displacement scale, and the displacement scale is provided with a blocking part that can block either the first position sensor or the second position sensor.

[0013] Optionally, the displacement scale is sleeved on the first end of the second hydraulic rod and can slide along the axial direction of the second hydraulic rod on the first end of the second hydraulic rod.

[0014] Optionally, the chassis is also provided with a support frame; The rotating mechanism can switch the device between a first posture and a second posture by rotating it. When the device is in the first posture, the soil sampling pipe is perpendicular to the ground; When the device is in the second posture, the rotating mechanism is placed on the support surface of the support frame.

[0015] Optionally, a third position sensor is provided on the chassis, and a fourth position sensor is provided on the support surface of the support frame; When the device is in the first posture, the rotation mechanism blocks the third position sensor; When the device is in the second posture, the rotation mechanism blocks the fourth position sensor.

[0016] Beneficial effects: This embodiment, through the coordination of a chassis, a rotating mechanism, a soil sampling pipe, a bulldozer rod, and the first, second, and third drive mechanisms, realizes the entire process of vertical descent, soil sampling, ascent, and sample ejection of the soil sampling pipe from the ground. The entire process is highly automated, requiring no manual operation and effectively improving the efficiency of soil sample acquisition. Furthermore, the acquired soil samples reflect the soil quality and moisture content at different depths, improving the accuracy of operators' assessment of the surface bearing capacity. The entire device has a simple structure, making it easy to mount on light vehicles for mobile transportation, thus meeting the needs of high-efficiency and high-reliability engineering reconnaissance. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a first structural schematic diagram of an automatic soil sampling device provided in an embodiment of this application; Figure 2This is a second structural schematic diagram of an automatic soil sampling device provided in an embodiment of this application; Figure 3 This is a third structural schematic diagram of an automatic soil sampling device provided in an embodiment of this application; Figure 4 yes Figure 3 Detailed view of point A; Figure 5 This is a fourth structural schematic diagram of an automatic soil sampling device provided in an embodiment of this application; Figure 6 This is the fifth structural schematic diagram of an automatic soil sampling device provided in the embodiments of this application.

[0018] Explanation of reference numerals in the attached figures: 1-Chassis, 11-Support frame, 12-Third position sensor, 13-Fourth position sensor, 2-Rotating mechanism, 21-First position sensor, 22-Second position sensor, 3-Soil sampling pipe, 4-Bulling rod, 41-Push plate, 411-Sleeve, 412-Second pin hole, 5-Guide component, 51-Guide opening, 52-Fifth position sensor, 6-First hydraulic rod, 7-Second hydraulic rod, 71-Displacement scale, 72-Shielding part, 8-Third hydraulic rod, 81-First pin hole. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] The battery pack test interface connection device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0022] Figure 1This is a schematic diagram of the structure of an automatic soil sampling device provided in an embodiment of this application.

[0023] See Figures 1-6 An automatic soil sampling device, the device comprising a chassis 1, a rotating mechanism 2, a soil sampling tube 3, and a bulldozer rod 4; The rotating mechanism 2 is rotatably connected to the chassis 1, and a first driving mechanism is provided between the rotating mechanism 2 and the chassis 1. The first driving mechanism is used to drive the rotating mechanism 2 to rotate relative to the chassis 1. The soil sampling pipe 3 is connected to the rotating mechanism 2 via a second driving mechanism. The soil sampling pipe 3 can be perpendicular to the ground as the rotating mechanism 2 rotates, and the first end of the soil sampling pipe 3 perpendicular to the ground faces the ground. The second driving mechanism is used to drive the soil sampling pipe 3 perpendicular to the ground to move relative to the rotating mechanism 2, so that the first end of the soil sampling pipe 3 can be inserted into or removed from the ground. The first end of the bulldozer 4 enters the soil sampling tube 3 from the second end of the soil sampling tube 3. The rotating mechanism 2 is also provided with a third driving mechanism, which is used to drive the first end of the bulldozer 4 to move towards the first end of the soil sampling tube 3 inside the soil sampling tube 3, thereby pushing the soil sample in the soil sampling tube 3 out from the first end of the soil sampling tube 3.

[0024] In this embodiment, the first end of each component refers to the end of the component that is close to the ground (i.e. downward) when the soil sampling pipe 3 is perpendicular to the ground, and the second end of each component refers to the end of the component that is away from the ground (i.e. upward) when the soil sampling pipe 3 is perpendicular to the ground.

[0025] In this device, the chassis 1 is placed on the ground, the rotating mechanism 2 is located above the chassis 1 and rotatably connected to the chassis 1, and the first driving mechanism is located between the rotating mechanism 2 and the chassis 1 to drive the rotating mechanism 2 to rotate relative to the chassis 1, thereby enabling the rotating mechanism 2 and the components installed on the rotating mechanism 2 to be in a posture that facilitates soil extraction from the ground (i.e., the first posture).

[0026] The soil sampling pipe 3, bulldozing rod 4, second drive mechanism, and third drive mechanism are all directly or indirectly mounted on the rotating mechanism 2, and can rotate synchronously with the rotating mechanism 2. When the device is in the first posture, which facilitates soil sampling from the ground, the soil sampling pipe 3 is perpendicular to the ground. At this time, the rotating mechanism 2 is above the soil sampling pipe 3 and can control the movement of the soil sampling pipe 3 relative to the rotating mechanism 2 through the second drive mechanism, so that the soil sampling pipe 3 rises and falls relative to the ground. The second drive mechanism drives the soil sampling pipe 3 to descend. At this time, the first end of the soil sampling pipe 3 (i.e., the downward-facing end) can penetrate into the ground. At the same time, the soil sample that was previously directly below the sampling tube can enter the soil sampling pipe 3. When the soil sampling pipe 3 penetrates into the ground to a certain depth, the second drive mechanism drives the soil sampling pipe 3 to rise to the height of exiting the ground. At this time, the soil sample located in the soil sampling pipe 3 can be lifted off the ground by the soil sampling pipe 3. Then, the bulldozing is performed. The first end of the rod 4 enters the soil sampling tube 3 from the second end (i.e., the upward-facing end) and can move within the soil sampling tube 3. Based on this, the device can apply a driving force to the second end of the bulldozer rod 4 through the third driving mechanism, driving the bulldozer rod 4 to penetrate deeper into the soil sampling tube 3, so that the first end of the bulldozer rod 4 pushes out all the soil samples located in the soil sampling tube 3 from the first end of the soil sampling tube 3 under the action of the driving force. The soil samples pushed out from the soil sampling tube 3 are in the form of strips. The different axial positions of the strip-shaped soil samples correspond to different soil depths. Therefore, the operators can judge the soil quality and water content at different depths of the soil based on the obtained strip-shaped soil samples, and thus judge the surface bearing capacity.

[0027] In summary, this embodiment, through the cooperation of chassis 1, rotating mechanism 2, soil sampling pipe 3, bulldozer rod 4, and the first, second, and third drive mechanisms, realizes the entire process of vertical descent, soil sampling, ascent, and soil sample ejection of the soil sampling pipe 3 from the ground. The entire process is highly automated, requiring no manual operation, and effectively improving the efficiency of soil sample acquisition. Furthermore, the acquired soil samples can reflect the soil quality and water content at different depths, improving the accuracy of operators in judging the surface bearing capacity. Moreover, the entire device has a simple structure, making it easy to mount on light vehicles for mobile transportation, thus meeting the needs of high-efficiency and high-reliability engineering surveys.

[0028] Optionally, after the soil sample is taken off the ground by the soil sampling tube 3, the rotating mechanism 2 can be driven by the first driving mechanism to rotate relative to the chassis 1, so that the soil sampling tube 3 maintains a relatively horizontal posture. At this time, the soil sample in the soil sampling tube 3 can be pushed out horizontally by the push rod 4. The soil sample pushed out horizontally is easier for the operators to collect and can improve the integrity of the soil sample, thereby improving the accuracy of the operators' judgment on the bearing capacity of the ground surface.

[0029] Optionally, the first end of the soil sampling pipe 3 can be a sharp structure. In this case, the soil sampling pipe 3 is like an enlarged needle, which can easily penetrate into the soil, reducing the pressure required for the soil sampling pipe 3 to be inserted into the ground. This can further reduce the weight of the device, making it easier for light vehicles to transport the device.

[0030] Optionally, the soil sampling tube 3 is detachably connected to the second drive mechanism so that different types and lengths of soil sampling tube 3 can be replaced according to different needs for soil samples.

[0031] Optionally, a detachable counterweight can be installed on the chassis 1 to increase the weight of the entire device and prevent the entire device from being lifted when the soil sampling pipe 3 is inserted into the ground.

[0032] Optionally, the chassis 1 can be equipped with lifting rings and wheels for easy lifting and towing.

[0033] Optionally, the first drive mechanism can be a motor, wherein the main structure of the motor is arranged on the base, and the rotation drive shaft of the motor is connected to the rotation mechanism 2, and the rotation of the rotation drive shaft drives the rotation mechanism 2 to rotate relative to the chassis 1; or it can be a cylinder, wherein the cylinder body is hinged to the base, and the telescopic drive shaft of the cylinder is hinged to the rotation mechanism 2, and the telescopic drive shaft drives the rotation mechanism 2 to rotate relative to the chassis 1.

[0034] Optionally, the second driving mechanism may include a gear and rack transmission pair and a motor. The main structure of the motor is arranged on the rotating mechanism 2. The rotating drive shaft of the motor is coaxially connected to a gear. A rack is connected to the soil sampling pipe 3, and the gear and rack mesh to form a gear and rack transmission pair. The lifting and lowering of the soil sampling pipe 3 is achieved through the cooperation of the motor and the gear and rack transmission pair. Alternatively, the second driving mechanism may be a cylinder. The cylinder body is fixedly connected to the rotating mechanism 2, and the telescopic drive shaft of the cylinder is coaxially connected to the soil sampling pipe 3. The lifting and lowering of the soil sampling pipe 3 is achieved through the extension and retraction of the telescopic drive shaft.

[0035] Optionally, the third drive mechanism may include a gear and rack transmission pair and a motor. The main structure of the motor is arranged on the rotating mechanism 2. The rotating drive shaft of the motor is coaxially connected to a gear. A rack is connected to the bulldozer rod 4, and the gear and rack mesh to form a gear and rack transmission pair. Through the cooperation of the motor and the gear and rack transmission pair, the first end of the bulldozer rod 4 can move towards the first end of the soil sampling pipe 3 within the soil sampling pipe 3. The second drive mechanism may also be a cylinder. The cylinder body is fixedly connected to the rotating mechanism 2. The telescopic drive shaft of the cylinder is coaxially connected to the bulldozer rod 4. Through the extension and retraction of the telescopic drive shaft, the first end of the bulldozer rod 4 can move towards the first end of the soil sampling pipe 3 within the soil sampling pipe 3.

[0036] In some embodiments, the first drive mechanism includes a first hydraulic rod 6, the two ends of which are respectively hinged to the rotating mechanism 2 and the chassis 1; The second driving mechanism includes a second hydraulic rod 7, the second end of which is disposed on the rotating mechanism 2, the first end of which is connected to the soil sampling pipe 3, and the extension and retraction direction of the second end of the second hydraulic rod 7 is parallel to the axial direction of the soil sampling pipe 3; The third driving mechanism includes a third hydraulic rod 8, the second end of which is disposed on the rotating mechanism 2, and the first end of which cooperates with the bulldozer rod 4 to drive the first end of the bulldozer rod 4 to move within the soil extraction pipe 3 toward the first end of the soil extraction pipe 3.

[0037] In this embodiment, the extension and retraction of the first hydraulic rod 6 drives the rotating mechanism 2 to rotate relative to the chassis 1, thereby adjusting the angle of the rotating mechanism 2 and its various components (including the soil sampling tube 3); the extension and retraction of the second hydraulic rod 7 drives the soil sampling tube 3 to move along its axial direction, realizing the lifting and lowering of the sampling tube and the excavation of the soil sample; the extension and retraction of the third hydraulic rod 8 pushes the bulldozer rod 4 to push out the soil sample in the soil sampling tube 3, completing the soil sampling operation.

[0038] Optionally, the first hydraulic rod 6, the second hydraulic rod 7, and the third hydraulic rod 8 are all driven by a hydraulic control system. This hydraulic control system includes a hydraulic pump, a solenoid directional valve, and a hydraulic oil tank mounted on the chassis 1. The hydraulic oil tank is used to supply hydraulic oil to the hydraulic pump and to recover hydraulic oil. The hydraulic pump provides the required hydraulic power to the hydraulic control system. The solenoid directional valve is used to control the flow direction of the hydraulic oil, thereby controlling the extension and retraction direction and sequence of each hydraulic rod, thus achieving precise control of the soil extraction action.

[0039] Optionally, an oil pressure overload protection switch can be installed at the oil inlet of the second hydraulic rod 7, so that when the second hydraulic rod 7 drives the soil sampling pipe 3 to be inserted into the ground and encounters a hard object (such as a rock or cement block), the oil pressure overload protection switch can automatically cause the second hydraulic rod 7 to retract, so as to prevent the hydraulic system from being overloaded and damaged.

[0040] Optionally, the structure in which the first end of the third hydraulic rod 8 cooperates with the bulldozer rod 4 can be such that the first end of the third hydraulic rod 8 is connected to the second end of the bulldozer rod 4, and the bulldozer rod 4 is moved by the extension and retraction of the first end of the third hydraulic rod 8, thereby driving the first end of the bulldozer rod 4 to move towards the first end of the soil extraction pipe 3 inside the soil extraction pipe 3.

[0041] Alternatively, the structure in which the first end of the third hydraulic rod 8 engages with the bulldozer rod 4 can be such that the first end of the third hydraulic rod 8 is not connected to the bulldozer rod 4, but rather the bulldozer rod 4 is slidably engaged with the soil sampling pipe 3, and the second end of the bulldozer rod 4 is blocked in the extension and retraction path of the first end of the third hydraulic rod 8. When the soil sampling pipe 3 is inserted into the ground, the soil sample entering the soil sampling pipe 3 can push the bulldozer rod 4 upward. On this basis, when the soil sampling pipe 3 is withdrawn from the ground, the first end of the third hydraulic rod 8 can be extended until the first end of the third hydraulic rod 8 contacts the second end of the bulldozer rod 4 and applies a thrust to the second end of the bulldozer rod 4, thereby pushing the entire bulldozer rod 4 downward, thereby driving the first end of the bulldozer rod 4 to move towards the first end of the soil sampling pipe 3 inside the soil sampling pipe 3, thereby pushing the soil sample in the soil sampling pipe 3 out from the first end of the soil sampling pipe 3.

[0042] In some embodiments, the third hydraulic rod 8 and the second hydraulic rod 7 are arranged side by side, and the extension direction of the first end of the third hydraulic rod 8 is parallel to the extension direction of the first end of the second hydraulic rod 7; The first end of the bulldozer rod 4 is slidably engaged with the soil sampling pipe 3, and the second end of the bulldozer rod 4 extends out from the second end of the soil sampling pipe 3. The second end of the bulldozer rod 4 is provided with an outwardly extending push plate 41, which blocks the extension and retraction path of the first end of the third hydraulic rod 8.

[0043] In this embodiment, the bulldozer rod 4 is not connected to the third hydraulic rod 8, but is indirectly engaged with the third hydraulic rod 8 through the push plate 41 structure. Since the first end of the bulldozer rod 4 is slidably engaged with the soil sampling tube 3, when the soil sampling tube 3 is inserted into the ground and the soil sample enters the inner cavity of the soil sampling tube 3, the soil sample will push the bulldozer rod 4 upward away from the soil sampling tube 3, and the push plate 41 will move upward and approach the first end of the third hydraulic rod 8. After the soil sampling is completed, the soil sampling tube 3 is lifted. At this time, the first end of the third hydraulic rod 8 begins to extend, contacts the push plate 41 and applies a pushing force to the push plate 41, thereby driving the entire bulldozer rod 4 to move towards the first end of the soil sampling tube 3, so that the first end of the bulldozer rod 4 pushes the soil sample out of the first end of the soil sampling tube 3. At this time, since the bulldozer rod 4 and the third hydraulic rod 8 are not connected, the third hydraulic rod 8 does not need to follow the movement trajectory of the bulldozer rod 4 to extend and retract during the process of the second hydraulic rod 7 driving the soil sampling pipe 3 to move up and down. It only needs to perform the required action when pushing out the soil sample (even if the first end of the third hydraulic rod 8 extends to push the bulldozer rod 4 to move). This design simplifies the control logic of the device automation and facilitates the automated operation of the device.

[0044] Next, the first end of the bulldozer rod 4 slides into the soil sampling pipe 3. By extending the push plate 41 outward, the push plate 41 can prevent the second end of the bulldozer rod 4 from entering the soil sampling pipe 3, thereby preventing the bulldozer rod 4 from sliding out of the first end of the soil sampling pipe 3 and causing the bulldozer rod 4 to be lost. This improves the stability of the soil sampling operation and reduces the failure rate in automated soil sampling operations.

[0045] In some embodiments, the second hydraulic rod 7 is connected to the soil sampling pipe 3 via a guide member 5; The guide member 5 has a guide chamber, which is connected to the second end of the soil sampling pipe 3. The second end of the bulldozer rod 4 is located in the guide chamber and can move within the guide chamber. The guide member 5 has a guide opening 51 on one or both sides of the guide chamber. The push plate 41 extends from the guide opening 51 to the outside of the guide member 5, and the width of the push plate 41 is adapted to the width of the guide opening 51.

[0046] In this embodiment, the guide chamber provides the bulldozer rod 4 with a space to move away from the soil sampling tube 3, facilitating the entry of soil samples into the tube 3. Simultaneously, since the width of the push plate 41 matches the width of the guide opening 51, the guide opening 51 can circumferentially limit the push plate 41, ensuring that the push plate 41 and its connected bulldozer rod 4 can only move axially along the soil sampling tube 3, preventing circumferential rotation. This ensures that the push plate 41 always blocks the extension path of the first end of the third hydraulic rod 8, thereby guaranteeing the stability of the third hydraulic rod 8 when pushing the bulldozer rod 4. This improves the stability of the soil sampling operation and reduces the failure rate in the automated soil sampling process.

[0047] Optionally, the guide member 5 may include two spaced-apart plates, with the guide chamber formed between the two plates and the guide opening 51 formed between the same edge of the two plates. In this case, both ends of each plate are connected to the first end of the second hydraulic rod 7 and the second end of the soil sampling pipe 3, respectively.

[0048] In some embodiments, the length of the guide chamber is less than the length of the bulldozer rod 4.

[0049] In this embodiment, the length of the guide chamber is less than the length of the second end of the bulldozer rod 4, so that when the second end of the bulldozer rod 4 moves in the guide chamber, the first end of the bulldozer rod 4 can always be located inside the soil sampling tube 3. This prevents the bulldozer rod 4 from completely detaching from the soil sampling tube 3 from the guide chamber, and further ensures that the bulldozer rod 4 maintains a stable sliding fit with the soil sampling tube 3 during the bulldozing process. This ensures that the soil sample can be smoothly pushed out of the soil sampling tube 3, improves the stability of the soil sampling operation, and reduces the failure rate in the automated soil sampling process.

[0050] In some embodiments, the first end of the third hydraulic rod 8 is provided with a first pin hole 81, and the push plate 41 is provided with a sleeve 411 at the part corresponding to the first end of the third hydraulic rod 8. The sleeve 411 is configured to be able to be sleeved on the first end of the third hydraulic rod 8, and the sleeve 411 is provided with a second pin hole 412 that is adapted to the first pin hole 81.

[0051] In this embodiment, by providing a sleeve 411 at the position of the push plate 41 corresponding to the first end of the third hydraulic rod 8, the first end of the third hydraulic rod 8 naturally extends into the cavity of the sleeve 411 when it contacts the push plate 41. This ensures a relatively stable connection between the first end of the third hydraulic rod 8 and the push plate 41, preventing misalignment or displacement of the first end of the third hydraulic rod 8 from the push plate 41 due to soil sample obstruction or external force during the application of force. This further improves the stability of the cooperation between the bulldozer rod 4 and the third hydraulic rod 8, thereby enhancing the stability of the soil extraction operation and reducing the failure rate in the automated soil extraction process.

[0052] Meanwhile, the first pin hole 81 and the second pin hole 412 enable a detachable connection between the bulldozer rod 4 and the third hydraulic rod 8. When no soil sampling is being performed, the sleeve 411 can be fitted over the first end of the third hydraulic rod 8, and a pin can be inserted through the first pin hole 81 and the second pin hole 412 to achieve a temporary connection between the bulldozer rod 4 and the third hydraulic rod 8. This prevents the bulldozer rod 4 from moving continuously and colliding or rubbing against the third hydraulic rod 8 or the sampling tube during the transportation of the device, thereby further improving the stability of the device during transportation.

[0053] Furthermore, when carrying out soil removal operations, the bulldozer rod 4 and the third hydraulic rod 8 can be separated simply by pulling the pin out of the first pin hole 81 and the second pin hole 412. The whole process is simple and quick.

[0054] Optionally, the extension lengths and sequences of the first hydraulic rod 6, the second hydraulic rod 7, and the third hydraulic rod 8 can be pre-stored in the control system. During soil extraction, each first hydraulic rod 6 is controlled to perform corresponding actions according to the pre-stored extension lengths and sequences, thereby automating the soil extraction operation. Alternatively, multiple sensors can be arranged in the device to detect the position of key components in different steps, thereby determining the timing of the next step and achieving automatic switching between steps, thus automating the soil extraction operation.

[0055] In some embodiments, the rotating mechanism 2 is provided with a first position sensor 21 and a second position sensor 22, and the first position sensor 21 and the second position sensor 22 are arranged at intervals along the extension direction of the first end of the second hydraulic rod 7. The first end of the second hydraulic rod 7 is provided with a displacement scale 71, and the displacement scale 71 is provided with a blocking part 72 that can block either the first position sensor 21 or the second position sensor 22.

[0056] In this embodiment, by setting a first position sensor 21 and a second position sensor 22 on the rotating mechanism 2, and setting a displacement scale 71 at the first end of the second hydraulic rod 7, and making the displacement scale 71 have a shielding part 72 that can cooperate with the two position sensors, the extension and retraction of the second hydraulic rod 7 can be automatically controlled.

[0057] Specifically, during the extension and retraction of the first end of the second hydraulic rod 7, the displacement scale 71 and the blocking part 72 move accordingly. When the first end of the second hydraulic rod 7 extends, the blocking part 72 can move from the position corresponding to the second position sensor 22 towards the position corresponding to the first position sensor 21. When the blocking part 72 moves to the position corresponding to the first position sensor 21, the first position sensor 21 is blocked and sends a signal. Upon receiving the signal, the control system can determine that the extension of the second hydraulic rod 7 has reached the preset maximum value, thereby automatically stopping the extension of the second hydraulic rod 7 and retracting the first end of the second hydraulic rod 7. When the first end of the second hydraulic rod 7 retracts, the blocking part 72 moves from the position corresponding to the first position sensor 21 towards the position corresponding to the second position sensor 22. When the blocking part 72 moves to the position corresponding to the second position sensor 22, the second position sensor 22 is blocked and sends a signal. Upon receiving the signal, the control system can determine that the retraction of the second hydraulic rod 7 is complete, thereby automatically stopping the retraction. This achieves automated control of the extension and retraction of the second hydraulic rod 7.

[0058] With the above settings, the second hydraulic rod 7 can automatically retract and reset after driving the soil sampling tube 3 to insert into the ground to a certain depth, thereby realizing the automated operation of obtaining soil samples by the soil sampling tube 3.

[0059] In some embodiments, the displacement scale 71 is sleeved on the first end of the second hydraulic rod 7 and is capable of sliding along the axial direction of the second hydraulic rod 7 on the first end of the second hydraulic rod 7.

[0060] In this embodiment, by sliding the displacement scale 71 along the axial direction of the first end of the second hydraulic rod 7, the axial position of the displacement scale 71 at the first end of the second hydraulic rod 7 can be adjusted, thereby changing the position of the first end of the second hydraulic rod 7 when the blocking part 72 blocks the first position sensor 21 or the second position sensor 22. This allows adjustment of the preset maximum value of the extension of the second hydraulic rod 7, thereby adjusting the depth of soil sample acquisition and improving the adaptability and flexibility of subsequent automated soil sampling operations.

[0061] In some embodiments, a support frame 11 is also provided on the chassis 1; The rotating mechanism 2 can switch the device between a first posture and a second posture by rotating it. When the device is in the first posture, the soil sampling pipe 3 is perpendicular to the ground; When the device is in the second posture, the rotating mechanism 2 is placed on the support surface of the support frame 11.

[0062] In this embodiment, during transportation, the rotating mechanism 2 can be rotated to switch the device to a second posture. In this position, the weight of the rotating mechanism 2 is supported by the support frame 11, rather than by the first actuation mechanism. This avoids the rotating mechanism 2 from bearing a burden on the first drive mechanism due to vibration or collision during transportation, thus preventing damage to the first drive mechanism and further improving the stability and safety of the device during transportation. Simultaneously, when the device switches to the second posture, the overall structure is more compact, facilitating transportation and storage and reducing space occupation.

[0063] Optionally, the rotation mechanism 2 can rotate at an angle of 90° to allow the device to switch between the first and second postures.

[0064] In some embodiments, a third position sensor 12 is provided on the chassis 1, and a fourth position sensor 13 is provided on the support surface of the support frame 11; when the device is in a first posture, the rotating mechanism 2 blocks the third position sensor 12; when the device is in a second posture, the rotating mechanism 2 blocks the fourth position sensor 13.

[0065] In this embodiment, by setting a third position sensor 12 on the chassis 1 and a fourth position sensor 13 on the support surface of the support frame 11, the automatic detection and control of the device's posture can be realized, thereby improving the automation level of the device's soil extraction process.

[0066] Specifically, when the device is in the first posture, i.e., the soil sampling tube 3 is perpendicular to the ground, the rotating mechanism 2 will block the third position sensor 12. At this time, the control system receives the signal from the third position sensor 12 and can determine that the device is ready to obtain a soil sample through the soil sampling tube 3, thereby initiating the corresponding steps (for example, controlling the soil sampling tube 3 to insert downward into the ground and then rise through the control of the second drive device). When the device switches to the second posture, i.e., the rotating mechanism 2 is placed on the support surface of the support frame 11, the rotating mechanism 2 will block the fourth position sensor 13. At this time, the control system receives the signal from the fourth position sensor 13 and can determine that the soil sampling tube 3 has obtained a soil sample, thereby initiating the corresponding steps (for example, controlling the bulldozer rod 4 through the third drive device to push the soil sample out of the soil sampling tube 3).

[0067] Optional, such as Figure 6 As shown, after the soil sample is taken away from the ground by the soil sampling tube 3, the first drive mechanism drives the rotating mechanism 2 to rotate relative to the chassis 1, so that the rotating mechanism 2 is placed on the support surface of the support frame 11, and the soil sampling tube 3 is in a relatively horizontal position. Thus, when the fourth position sensor 13 senses that the device is in the second position, the third drive mechanism (i.e. the third hydraulic rod 8) is controlled to drive the push rod 4 to push the soil sample in the soil sampling tube 3 out in the horizontal direction, thereby improving the automation of the soil sampling process.

[0068] Optionally, a fifth position sensor 52 can be arranged at the first end of the guide member 5. When the push plate 41 moves to the position of the first end of the guide member 5, it indicates that the first end of the bulldozer 4 has moved to the deepest part of the soil sampling tube 3, which is sufficient to push all the soil samples in the soil sampling tube 3 out from the first end of the soil sampling tube 3. At this time, the push plate 41 can block the fifth position sensor 52. After receiving the signal, the control system controls the third hydraulic rod 8 to retract.

[0069] Optionally, each position sensor can be a proximity sensor.

[0070] The specific method by which this device performs soil extraction operations can be: First, the device is initially in the state as follows Figure 1 As shown in the diagram; when the soil sampling operation begins, the first hydraulic rod 6 extends, thereby driving the rotating mechanism 2 to rotate the soil sampling pipe 3 to a first position perpendicular to the ground, and aligning the first end of the soil sampling pipe 3 with the ground position to be sampled, as shown. Figure 2 As shown; at this time, the third position sensor 12 is blocked by the rotating mechanism 2. After receiving the signal, the control system controls the first end of the second hydraulic rod 7 to extend, driving the soil sampling tube 3 to insert downward into the ground to a certain depth to obtain a soil sample, as shown. Figure 3 As shown; when the depth of the soil sampling pipe 3 inserted into the ground reaches the preset maximum value, as... Figure 4As shown, the blocking part 72 of the displacement scale 71 blocks the first position sensor 21. After receiving the signal, the control system controls the first end of the second hydraulic rod 7 to retract, causing the soil sampling pipe 3 to be pulled out of the ground. Figure 5 As shown; when the first end of the second hydraulic rod 7 retracts to the blocking part 72 of the displacement scale 71, blocking the second position sensor 22, the control system receives a signal and controls the first hydraulic rod 6 to retract, thereby driving the rotating mechanism 2 to rotate the soil sampling tube 3 to the second posture. At this time, the rotating mechanism 2 is placed on the support surface of the support frame 11, and the fourth position sensor 13 is blocked by the rotating mechanism 2. After receiving a signal, the control system controls the first end of the third hydraulic rod 8 to extend, pushing the bulldozer rod 4 toward the first end of the soil sampling tube 3, thereby pushing the soil sample in the soil sampling tube 3 out from the first end of the soil sampling tube 3, as shown. Figure 6 As shown; at this time, the push plate 41 on the bulldozer rod 4 moves to the position of the first end of the guide member 5, the fifth position sensor 52 is blocked by the push plate 41, and after receiving the signal, the control system controls the first end of the third hydraulic rod 8 to retract, as shown. Figure 1 As shown. At this point, the device completes one soil extraction operation and resets to prepare for the next operation. This device has a compact structure and a high degree of automation, which greatly improves the efficiency of soil extraction operations.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An automatic soil sampling device, characterized in that, The device includes a chassis (1), a rotating mechanism (2), a soil sampling pipe (3), and a bulldozer rod (4). The rotating mechanism (2) is rotatably connected to the chassis (1), and a first driving mechanism is provided between the rotating mechanism (2) and the chassis (1). The first driving mechanism is used to drive the rotating mechanism (2) to rotate relative to the chassis (1). The soil sampling pipe (3) is connected to the rotating mechanism (2) via a second driving mechanism. The soil sampling pipe (3) can rotate with the rotating mechanism (2) to be perpendicular to the ground, and the first end of the soil sampling pipe (3) perpendicular to the ground faces the ground. The second driving mechanism is used to drive the soil sampling pipe (3) perpendicular to the ground to move relative to the rotating mechanism (2) so that the first end of the soil sampling pipe (3) can be inserted into or removed from the ground. The first end of the bulldozer rod (4) enters the soil sampling tube (3) from the second end of the soil sampling tube (3). The rotating mechanism (2) is also provided with a third driving mechanism. The third driving mechanism is used to drive the first end of the bulldozer rod (4) to move towards the first end of the soil sampling tube (3) inside the soil sampling tube (3), thereby pushing the soil sample in the soil sampling tube (3) out from the first end of the soil sampling tube (3).

2. The automatic soil sampling device according to claim 1, characterized in that, The first drive mechanism includes a first hydraulic rod (6), and the two ends of the first hydraulic rod (6) are respectively hinged to the rotating mechanism (2) and the chassis (1). The second driving mechanism includes a second hydraulic rod (7), the second end of which is disposed on the rotating mechanism (2), the first end of which is connected to the soil sampling pipe (3), and the extension and retraction direction of the second end of the second hydraulic rod (7) is parallel to the axial direction of the soil sampling pipe (3); The third driving mechanism includes a third hydraulic rod (8), the second end of which is disposed on the rotating mechanism (2), and the first end of which cooperates with the bulldozer rod (4) to drive the first end of the bulldozer rod (4) to move toward the first end of the soil extraction pipe (3) inside the soil extraction pipe (3).

3. The automatic soil sampling device according to claim 2, characterized in that, The third hydraulic rod (8) is arranged side by side with the second hydraulic rod (7), and the extension direction of the first end of the third hydraulic rod (8) is parallel to the extension direction of the first end of the second hydraulic rod (7); The first end of the bulldozer rod (4) is slidably engaged with the soil extraction pipe (3), and the second end of the bulldozer rod (4) extends outward from the second end of the soil extraction pipe (3). The second end of the bulldozer rod (4) is provided with an outwardly extending push plate (41), which blocks the extension path of the first end of the third hydraulic rod (8).

4. An automatic soil sampling device according to claim 3, characterized in that, The second hydraulic rod (7) is connected to the soil sampling pipe (3) via a guide (5); The guide member (5) has a guide chamber, which is connected to the second end of the soil sampling pipe (3). The second end of the bulldozer rod (4) is located in the guide chamber and can move in the guide chamber. The guide member (5) has a guide opening (51) on one or both sides of the guide chamber. The push plate (41) extends from the guide opening (51) to the outside of the guide member (5), and the width of the push plate (41) is adapted to the width of the guide opening (51).

5. An automatic soil sampling device according to claim 4, characterized in that, The length of the guide chamber is less than the length of the bulldozer rod (4).

6. An automatic soil sampling device according to claim 4, characterized in that, The first end of the third hydraulic rod (8) is provided with a first pin hole (81), and the push plate (41) is provided with a sleeve (411) at the part corresponding to the first end of the third hydraulic rod (8). The sleeve (411) is configured to be able to be sleeved on the first end of the third hydraulic rod (8), and the sleeve (411) is provided with a second pin hole (412) that is adapted to the first pin hole (81).

7. An automatic soil sampling device according to claim 2, characterized in that, The rotating mechanism (2) is provided with a first position sensor (21) and a second position sensor (22), and the first position sensor (21) and the second position sensor (22) are arranged at intervals along the extension direction of the first end of the second hydraulic rod (7); The first end of the second hydraulic rod (7) is provided with a displacement scale (71), and the displacement scale (71) is provided with a blocking part (72) that can block either the first position sensor (21) or the second position sensor (22).

8. An automatic soil sampling device according to claim 7, characterized in that, The displacement scale (71) is sleeved on the first end of the second hydraulic rod (7) and can slide along the axial direction of the second hydraulic rod (7) on the first end of the second hydraulic rod (7).

9. An automatic soil sampling device according to any one of claims 1-8, characterized in that, The chassis (1) is also provided with a support frame (11). The rotating mechanism (2) can switch the device between a first posture and a second posture by rotating it; When the device is in the first posture, the soil sampling pipe (3) is perpendicular to the ground; When the device is in the second posture, the rotating mechanism (2) is placed on the support surface of the support frame (11).

10. An automatic soil sampling device according to claim 9, characterized in that, The chassis (1) is provided with a third position sensor (12), and the support surface of the support frame (11) is provided with a fourth position sensor (13). When the device is in the first posture, the rotation mechanism (2) blocks the third position sensor (12). When the device is in the second posture, the rotating mechanism (2) blocks the fourth position sensor (13).

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