Soil drilling and collecting device

Abstract

The invention relates to the technical field of soil sampling, in particular to a soil drilling and collecting device which comprises a sampling barrel and a drilling mechanism, the sampling barrel is provided with a first axis, and the sampling barrel moves along the first axis to execute soil collection; the drilling mechanism comprises a plurality of first sleeve assemblies and a plurality of second sleeve assemblies, the first sleeve assemblies and the second sleeve assemblies are connected end to end in pairs along a first axis, and the first sleeve assemblies and the second sleeve assemblies can rotate around the first axis and are opposite in direction; the first sleeve assembly and the second sleeve assembly are each provided with an adjusting assembly, and the adjusting assemblies can move in the direction perpendicular to the first axis. According to the hardness of soil, the adjusting assembly is matched with the soil hole wall to adjust the first sleeve assembly and the second sleeve assembly to rotate in opposite directions, and the sampling barrel is driven to drill downwards along the first axis to execute soil collection. Therefore, the drilling efficiency of the device during hard soil collection is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a soil drilling and sampling device. Background Art

[0002] In the field of soil collection and analysis, soil collection devices are important tools for obtaining soil samples. The existing technology mainly relies on mechanical drilling to insert the sampling tube into the soil by rotating and pressing down. However, in practical applications, especially in the collection process of hard soil, the existing devices face many problems.

[0003] First, when facing hard soil, traditional drilling devices often encounter great resistance during the drilling process, resulting in low drilling efficiency and even possible damage or failure of the equipment. This situation not only increases the difficulty of operation, but also prolongs the collection time and reduces work efficiency. Secondly, the existing technology uses a single-direction thread for propulsion, but it cannot be adaptively adjusted according to the hardness of the soil, which can easily cause the equipment to get stuck or waste energy. In a hard soil environment, the rotation and downward force of the drill bit are difficult to transmit effectively, resulting in the sampling tube being unable to smoothly enter the soil.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] Based on this, it is necessary to provide a soil drilling and collection device to address the problems of low drilling efficiency and uneven power distribution caused by excessive resistance in the face of hard soil in current soil collection devices.

[0006] The above purpose is achieved through the following technical solutions: A soil drilling and collecting device comprises a sampling barrel having a first axis, and the sampling barrel moves along the first axis to perform soil collection; A drilling mechanism, the drilling mechanism comprising a plurality of first sleeve assemblies and a plurality of second sleeve assemblies, the first sleeve assemblies and the second sleeve assemblies are alternately arranged on the sampling barrel, and the first sleeve assemblies and the second sleeve assemblies are both capable of rotating around a first axis in opposite directions; The first sleeve assembly and the second sleeve assembly are both provided with adjustment assemblies, and a plurality of the adjustment assemblies are capable of moving along a direction perpendicular to the first axis; According to the hardness of the soil, the adjusting assembly cooperates with the soil hole wall to control the first sleeve assembly and the second sleeve assembly to rotate in opposite directions; the first sleeve assembly and the second sleeve assembly cooperate with the soil hole wall to drive the sampling cylinder to drill downward along the first axis to perform soil collection.

[0007] In one embodiment, the adjusting assembly includes first bumps, and a plurality of the first bumps are arranged on the first sleeve assembly around the first axis; the adjusting assembly includes second bumps, and a plurality of the second bumps are arranged on the second sleeve assembly around the first axis.

[0008] In one embodiment, the inclined surface direction of the first bump is the same as the rotation direction of the first sleeve assembly; the inclined surface direction of the second bump is the same as the rotation direction of the second sleeve assembly.

[0009] In one embodiment, first elastic reset members are arranged on the first bumps, and a plurality of the first elastic reset members always make the first bumps move towards the sampling cylinder; second elastic reset members are arranged on the second bumps, and a plurality of the second elastic reset members always make the second bumps move towards the sampling cylinder.

[0010] In one embodiment, it further includes a first control assembly capable of moving along the first axis, and guiding structures are arranged on the first control assembly, and a plurality of the guiding structures are used to make the first bumps and the second bumps cooperate with the soil hole wall.

[0011] In one embodiment, it further includes a second control assembly capable of moving along the first axis, and a top block structure is arranged on the second control assembly, and the top block structure is used to drive the guiding structures to move away from the sampling cylinder.

[0012] In one embodiment, an elastic member is arranged on the guiding structure, and the elastic member always makes the guiding structure tend to move towards the sampling cylinder.

[0013] In one embodiment, the first sleeve assembly is provided with a first guiding protrusion, and the second sleeve assembly is provided with a second guiding groove, and the first guiding protrusion and the second guiding groove cooperate to drive the first sleeve assembly and the second sleeve assembly to rotate in opposite directions; the first sleeve assembly is provided with a first guiding groove, and the second sleeve assembly is provided with a second guiding protrusion, and the second guiding protrusion and the first guiding groove cooperate to drive the first sleeve assembly and the second sleeve assembly to rotate in opposite directions.

[0014] In one embodiment, it further includes a limiting structure, wherein a plurality of the limiting structures correspond one-to-one to a plurality of the guiding structures and are arranged on the first sleeve assembly and the second sleeve assembly, and the limiting structures limit the movement of the guiding structures.

[0015] In one embodiment, the limiting structure includes a straight edge segment and a beveled edge segment, and the straight edge segment and the beveled edge segment are arranged at an angle; the inclination direction of the beveled edge segment is opposite to the rotation direction of the correspondingly arranged first sleeve assembly and second sleeve assembly, so as to limit the movement of the guide structure.

[0016] The beneficial effects of the present invention are: The present invention provides a soil drilling and collection device, which comprises a sampling barrel and a drilling mechanism, wherein the sampling barrel has a first axis, and the sampling barrel moves along the first axis to perform soil collection; the drilling mechanism comprises a plurality of first sleeve assemblies and a plurality of second sleeve assemblies, the first sleeve assemblies and the second sleeve assemblies are connected end to end along the first axis, and the first sleeve assemblies and the second sleeve assemblies are both capable of rotating around the first axis in opposite directions; the first sleeve assembly and the second sleeve assembly are both provided with an adjusting assembly, and the adjusting assembly is capable of moving in a direction perpendicular to the first axis; according to the hardness of the soil, the adjusting assembly cooperates with the soil hole wall to adjust the first sleeve assembly and the second sleeve assembly to rotate in opposite directions, and drives the sampling barrel to drill downward along the first axis to perform soil collection; thereby, the drilling efficiency of the device when collecting hard soil is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of a soil drilling and collection device provided by an embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of a soil drilling and collecting device; Figure 3 for Figure 1 A schematic diagram of a drilling mechanism of a soil drilling and collecting device, wherein the first sleeve housing and the second sleeve housing are hidden in the figure; Figure 4 for Figure 1 A cross-sectional view of a drilling mechanism of a soil drilling and collecting device; Figure 5 A schematic diagram of a first sleeve assembly of a soil drilling and collecting device; Figure 6 for Figure 2 A local enlarged schematic diagram of the middle A; Figure 7 for Figure 2 A partial enlarged schematic diagram of point B in the middle; Figure 8 for Figure 2A partial enlarged schematic diagram of point C in the middle; Fig. 9 for Figure 3 A partial enlarged schematic diagram of point D in the middle; Fig.10 for Figure 3 A partial enlarged schematic diagram of point E in the middle; Fig.11 for Figure 3 A partial enlarged schematic diagram of point F in the middle; Fig.12 for Figure 4 A partial enlarged schematic diagram of the G in the middle; in: 100. Driving mechanism; 200, drilling mechanism; 201, upper sealing ring; 202, upper sealing plug; 203, connecting ring; 204, lower sealing ring; 210, sampling tube; 220, steel tube; 230, drill bit; 300, first sleeve assembly; 301, first sleeve housing; 310, first protrusion; 311, first elastic return member; 320, first guide protrusion; 321, first guide groove; 400, second sleeve assembly; 401, second sleeve housing; 410, second protrusion; 411, second elastic return member; 420, second guide protrusion; 421, second guide groove; 501, first control component; 502, second control component; 510, spring; 520, guide structure; 521, elastic member; 530, top block structure; 540, limit structure. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] Refer to the following Figures 1 to 12 The soil drilling and collecting device provided by an embodiment of the present invention is described.

[0022] like Figures 1 to 12 As shown, the soil drilling and collection device provided in the embodiment of the present invention is particularly suitable for the collection and processing of soil analysis, and of course it can also be applied to drilling and collection under other working conditions. Specifically, the soil drilling and collection device includes a drilling mechanism 200 and a driving mechanism 100. The drilling mechanism 200 is the core mechanism of the entire device. On the one hand, it is used for the actual collection of soil samples. It transmits the power from the driving mechanism 100 to the soil to ensure that it can be effectively inserted into the soil to obtain the required soil samples; on the other hand, it provides structural support for the entire device, so that the entire device can withstand the pressure in all directions generated during the drilling process, including the reaction force from the soil and the gravity of the device itself, thereby improving the stability of the device. The soil drilling and collection device also includes a drill bit 230. The drill bit 230 is the execution component of the drilling, which directly contacts the soil and penetrates the soil layer, and cooperates with the drilling mechanism 200 to perform soil drilling and collection work.

[0023] The sampling barrel 210, as the core structure of the present invention, is arranged inside the drilling mechanism 200, and its central axis is defined as the first axis. The shape of the sampling barrel 210 can be various regular or irregular forms, but the first axis should always be located at the center of the sampling barrel 210. Specifically, the sampling barrel 210 and the drilling mechanism 200 drill downward along the first axis in the same direction. Figure 2The up and down directions are consistent. The soil sample enters the sampling barrel 210 through the opening of the drill bit 230 and is stored therein to prevent the sample from being broken or contaminated due to external pressure or friction during the drilling process. The sampling barrel 210 used in the present invention is an acrylic tube, which is a transparent or translucent material. This setting allows the operator to observe the state of the soil sample in the tube in real time and perform preliminary analysis without taking out the sample. In addition, the smooth inner wall of the acrylic tube ensures that the soil sample enters the tube intact, avoiding sample stratification or deformation due to rough structure. It should be pointed out that the type of sampling barrel 210 can be various, and as long as the above-mentioned technical effects can be achieved, it can be applied to the present invention.

[0024] In addition, if Figure 6 As shown, the soil drilling and collecting device further comprises a steel cylinder 220, which is disposed between the sampling cylinder 210 and the drilling mechanism 200. The steel cylinder 220 serves as a protective shell of the sampling cylinder 210 to reduce damage to internal components during the drilling process.

[0025] Drilling mechanism 200, such as Figure 3 As shown, the drilling mechanism 200 includes a plurality of first sleeve assemblies 300 and a plurality of second sleeve assemblies 400. The first sleeve assemblies 300 and the second sleeve assemblies 400 are alternately sleeved on the steel cylinder 220 and connected end to end in pairs along a first axis.

[0026] Specifically, when the work starts, the driving mechanism 100 is started, and the first sleeve assembly 300 and the second sleeve assembly 400 will vibrate up and down regularly. Figure 3 In the up and down directions, this vibration can help the drilling mechanism 200 to penetrate the soil smoothly. However, in actual operation, the texture of the soil is not uniform. When the drilling mechanism 200 encounters hard soil, the resistance to the drill bit 230 will increase, resulting in the drilling depth of the drilling mechanism 200 being limited, thereby affecting the soil collection effect.

[0027] Specifically, the driving mechanism 100 includes a driving motor, a vibration module, a driving spindle and a driven member, and the vibration module includes a gear box and a cam. The driving motor distributes power to the driving spindle and the vibration module through the gear box, and the driving spindle transmits power to the first sleeve assembly 300 and the second sleeve assembly 400, driving the first sleeve assembly 300 and the second sleeve assembly 400 to rotate. Among them, the cam is fixedly arranged on the rotating spindle, and its profile is designed as a sine curve or an eccentric circle. When the spindle rotates, the cam rotates synchronously, and the driven member moves along the cam profile, that is, the cam pushes the driven member in contact with it to make it reciprocate up and down, thereby converting the rotary motion into reciprocating up and down motion. Then, the up and down reciprocating motion of the driven member is transmitted to the first sleeve assembly 300 and the second sleeve assembly 400, driving the first sleeve assembly 300 and the second sleeve assembly 400 to vibrate up and down.

[0028] To solve the above problems, a plurality of adjustment assemblies are provided on the first sleeve assembly 300 and the second sleeve assembly 400. These adjustment assemblies are evenly arranged on the first sleeve assembly 300 and the second sleeve assembly 400 around the first axis. This uniform installation arrangement ensures that the force in all directions during the drilling process is uniform, and can better cope with resistance in different directions. When encountering hard soil during the drilling process, the adjustment assembly will move in a direction perpendicular to the first axis, away from the sampling tube 210, until it contacts the soil. At this time, the adjustment assembly on the first sleeve assembly 300 and the adjustment assembly on the second sleeve assembly 400 form a rotational friction contact with the soil, converting the rotational motion into an axial thrust of the first axis, thereby providing a downward force for the drilling mechanism 200.

[0029] At the same time, due to the interaction between the adjustment assembly and the soil, the first sleeve assembly 300 and the second sleeve assembly 400 will be subjected to rotational forces in different directions. Specifically, the first sleeve assembly 300 rotates counterclockwise, and the second sleeve assembly 400 rotates clockwise, that is, Figure 3 Therefore, the adjustment assembly on the first sleeve assembly 300 not only generates a counterclockwise rotational force, but also exerts a downward force; while the adjustment assembly on the second sleeve assembly 400 generates a clockwise rotational force and the same downward force, that is, Figure 3In the up and down direction. During the entire drilling process, the first sleeve assembly 300 and the second sleeve assembly 400 themselves also rotate in opposite directions, and the driving mechanism 100 will continue to push the two sleeve assemblies downward. At this time, the directions of the forces of the driving mechanism 100 and the adjusting assembly are consistent, both moving downward. In this way, thrust superposition is achieved, so that the first sleeve assembly 300 and the second sleeve assembly 400 continue to push downward while rotating, forming an approximate spiral trajectory, simulating the rotation of the spiral drill bit, and continuously drilling deep into the soil, thereby effectively overcoming the resistance of hard soil and ensuring the smooth collection of soil samples. With this arrangement, the drilling mechanism 200 not only improves the drilling efficiency, but also effectively overcomes the resistance of hard soil, while also enhancing the adaptability of the drilling mechanism 200 under different soil conditions, ensuring the stability of the collection process.

[0030] In addition, the first sleeve assembly 300 is provided with a first sleeve housing 301, and the second sleeve assembly 400 includes a second sleeve housing 401. The first sleeve housing 301 and the second sleeve housing 401 are used to protect internal parts from damage.

[0031] In particular, such as Figure 6 As shown, the soil drilling and collecting device also includes an upper sealing plug 202 and a connecting ring 203. The upper sealing plug 202 is arranged between the driving mechanism 100 and the sampling tube 210. On the one hand, it is used to seal the sampling tube 210 to ensure that the collected soil sample is not contaminated. On the other hand, it is slidably connected to the driving mechanism 100, allowing the driving mechanism 100 to move axially up and down along the first axis during drilling. The upper sealing plug 202 not only adapts to the up and down movement of the entire device, but also plays an effective buffering role. The connecting ring 203 serves as a connecting structure of the drilling mechanism 200, which is slidably connected to the first sleeve assembly 300 and the second sleeve assembly 400, and the driving mechanism 100 and the first sleeve assembly 300 are also slidably connected through the connecting ring 203.

[0032] In one embodiment, if Figures 5 to 8 As shown, the adjustment assembly includes a first protrusion 310, and a plurality of first protrusions 310 are arranged on the first sleeve assembly 300 around the first axis; the adjustment assembly also includes a second protrusion 410, and a plurality of second protrusions 410 are arranged on the second sleeve assembly 400 around the first axis.

[0033] Further, the inclined surface of the first protrusion 310 is arranged to extend from the upper left to the lower right. Figure 5 The tilt direction is counterclockwise from top to bottom, and the tilt direction is consistent with the rotation direction of the first sleeve assembly 300, that is, Figure 5 Similarly, the inclined surface direction of the second protrusion 410 is set to extend from the lower left to the upper right, and is consistent with the clockwise rotation direction of the second sleeve assembly 400.

[0034] Specifically, when the work starts, the first protrusion 310 and the second protrusion 410 move in a direction perpendicular to the first axis and away from the sampling tube 210 to contact the soil. At this time, effective friction contact is formed between the inclined surface of the protrusion and the soil, and the friction contact between the inclined surface and the soil is used to convert the rotational motion into a downward thrust, driving the first sleeve assembly 300 and the second sleeve assembly 400 to continue drilling. Therefore, when the first protrusion 310 rotates with the first sleeve assembly 300 and the second protrusion 410 rotates with the second sleeve assembly 400, the rotational motion can be converted into an axial thrust downward along the first axis through the friction between the inclined surface and the soil. Ensure that when the device is working, the force generated during the rotation process can be converted into a downward thrust to the greatest extent, significantly improving the hard soil penetration efficiency.

[0035] In one embodiment, if Figures 5 to 12 As shown, the first convex block 310 is provided with a first elastic reset member 311, and the plurality of first elastic reset members 311 always make the first convex block 310 move toward the sampling tube 210; the second convex block 410 is provided with a second elastic reset member 411, and the plurality of second elastic reset members 411 always make the second convex block 410 move toward the sampling tube 210. It can be understood that the first convex block 310 is provided with two first elastic reset members 311, and they are arranged diagonally, that is, Figure 5 As shown. When the soil is hard, the first elastic reset member 311 is greatly compressed, and the first protrusion 310 fully moves in the direction away from the sampling tube 210 to contact the soil, thereby enhancing the thrust during drilling; when the soil resistance decreases, the first elastic reset member 311 is slightly compressed, and the first protrusion 310 is partially retracted to reduce energy loss. When the work is completed, the elastic force of the first elastic reset member 311 drives the first protrusion 310 to move in the direction of the sampling tube 210 to be retracted into the first sleeve assembly 300, so as to avoid the first elastic reset member 311 protrusion rubbing against the soil wall when the device is pulled out to generate additional resistance, thereby ensuring the smoothness of the recovery process. Similarly, the setting and function of the second elastic reset member 411 on the second sleeve assembly 400 are the same as those of the first elastic reset member 311.

[0036] By providing the first elastic reset member 311 and the second elastic reset member 411, the soil drilling and collecting device can be flexibly adjusted under different soil conditions, thereby improving work efficiency and ensuring smooth recovery of the device and smooth subsequent operations.

[0037] In one embodiment, if Figures 7 to 12As shown, the soil drilling and collecting device also includes a first control component 501 that can move along the first axis. A guide structure 520 is provided on the first control component 501. The plurality of guide structures 520 are used to make the first protrusion 310 and the second protrusion 410 cooperate with the soil hole wall.

[0038] Furthermore, the soil drilling and collecting device further comprises a second control component 502 that can move along the first axis, and a top block structure 530 is provided on the second control component 502, and the top block structure 530 is used to drive the guide structure 520 to move in a direction away from the sampling tube 210. Specifically, the second control component 502 is slidably connected to the first control component 501, and the first control component 501 is in contact with the driving mechanism 100. In addition, the soil drilling and collecting device is further provided with a spring 510, and the spring 510 is divided into two layers, namely, Figure 7 The upper layer of the spring 510 is arranged between the first control assembly 501 and the second control assembly 502 , and one end of the lower layer of the spring 510 is connected to the second control assembly 502 , and the other end is connected to the steel cylinder 220 .

[0039] Specifically, when the device encounters harder soil, the driving mechanism 100 moves downward through the first control component 501 to compress the spring 510. At this time, the first control component 501 and the second control component 502 both have a tendency to move downward. However, since the elastic force of the lower layer of the spring 510 is always greater than the elastic force of the upper layer of the spring 510, the elastic force of the lower layer of the spring 510 always makes the second control component 502 tend to move upward. This means that the first control component 501 and the second control component 502 will maintain relative sliding, and the first control component 501 slides downward relative to the second control component 502. Figure 8 and Fig.12 As shown, the guide structure 520 on the first control component 501 interacts with the top block structure 530 on the second control component 502, so that the top block structure 530 pushes the guide structure 520 away from the sampling tube 210, so that it contacts the first protrusion 310 and the second protrusion 410, and pushes them to extend outward to contact the soil, further enhancing the drilling effect.

[0040] In particular, such as Figure 6 and Figure 7 As shown, the soil drilling and collecting device further comprises an upper sealing ring 201 and a lower sealing ring 204. The upper sealing ring 201 is arranged between the first control assembly 501 and the connecting ring 203, and the lower sealing ring 204 is arranged between the drill bit 230 and the first control assembly 501, both of which play a sealing role and protect the parts from being damaged.

[0041] In one embodiment, if Fig.12As shown, an elastic member 521 is provided on the guide structure 520, and the elastic member 521 always makes the guide structure 520 tend to move toward the sampling tube 210. It can be understood that when the soil is hard, the top block structure 530 pushes the guide structure 520 to contact the first protrusion 310 and the second protrusion 410, and the elastic member 521 is greatly compressed. When the soil resistance decreases, the elastic member 521 is slightly compressed, and the guide structure 520 partially retracts, thereby partially retracting the first protrusion 310 and the second protrusion 410. When the work is finished, the elastic force of the elastic member 521 drives the guide structure 520 to move toward the sampling tube 210, so that it returns to its initial position.

[0042] In one embodiment, if Figures 9 to 12 As shown, the first sleeve assembly 300 is provided with a first guide protrusion 320 and a first guide groove 321, and the second sleeve assembly 400 is provided with a second guide groove 421 and a second guide protrusion 420. Further, the soil drilling and collecting device further comprises an elastic device, which is connected to the first sleeve assembly 300 through the first guide protrusion 320 and to the second sleeve assembly 400 through the second guide protrusion 420. The elastic device always applies a certain elastic force, so that the first guide protrusion 320 has a tendency to move toward the second guide groove 421, and the second guide protrusion 420 has a tendency to move toward the first guide groove 321.

[0043] Specifically, during operation, the elastic device drives the first guide protrusion 320 to move upward to the right along the left oblique side of the second guide groove 421. Fig. 9 In the up, down, left, and right directions, a clockwise rotation force is applied to the second sleeve assembly 400, causing the second sleeve assembly 400 to rotate clockwise. Due to the interaction, the second sleeve assembly 400 also applies a counterclockwise rotation force to the first sleeve assembly 300, causing the first sleeve assembly 300 to rotate counterclockwise, that is, Fig. 9 Counterclockwise and clockwise directions from a top-down perspective.

[0044] Similarly, the elastic device also drives the second guide protrusion 420 to move upward to the left along the right oblique side of the first guide groove 321, that is, Fig.12 The first sleeve assembly 300 exerts a counterclockwise force on the first sleeve assembly 300, causing the first sleeve assembly 300 to rotate counterclockwise. Due to the interaction, the first sleeve assembly 300 exerts a clockwise force on the second sleeve assembly 400, causing the second sleeve assembly 400 to rotate clockwise. Fig.12 Counterclockwise and clockwise directions from a top-down perspective.

[0045] When the first guide protrusion 320 moves along the right oblique side of the second guide groove 421, and the second guide protrusion 420 moves along the left oblique side of the first guide groove 321, the elastic device will be compressed. Thus, it is ensured that the first sleeve assembly 300 continues to rotate counterclockwise, while the second sleeve assembly 400 continues to rotate clockwise, thereby maintaining this stable rotation state.

[0046] In one embodiment, by Figure 3 and Figure 4 As shown, the soil drilling and collecting device further includes a limiting structure 540 , and a plurality of limiting structures 540 correspond one-to-one to a plurality of guide structures 520 , and are arranged on the first sleeve assembly 300 and the second sleeve assembly 400 .

[0047] Furthermore, the limiting structure 540 includes a straight edge section and a beveled edge section, the straight edge section and the beveled edge section are arranged at an angle, and the inclination direction of the beveled edge section is opposite to the rotation direction of the correspondingly arranged first sleeve assembly 300 and second sleeve assembly 400. It can be understood that, since the top block structure 530 may slide along the straight edge section or along the beveled edge section when the limiting structure 540 is in place, in order to enable the guide structure 520 to push the first protrusion 310 and the second protrusion 410 to move and contact with the soil, the guide structure 520 must move along the beveled edge section when the device rotates.

[0048] Specifically, when the guide structure 520 is located at the upper intersection of the oblique side section and the straight side section of the limiting structure 540, the first guide protrusion 320 moves to the upper right along the left oblique side of the second guide groove 421, so that the guide structure 520 tends to move away from the straight side section, and moves to the lower left along the oblique side section of the limiting structure 540 on the first sleeve assembly 300, thereby pushing the first protrusion 310 and the second protrusion 410 to move and contact the soil; when the first guide protrusion 320 moves along the right oblique side section of the second guide groove 421, the guide structure 520 moves upward along the straight side section of the limiting structure 540 on the first sleeve assembly 300 to the upper intersection of the oblique side section and the straight side section, completing a cycle.

[0049] Similarly, the second guide protrusion 420 moves toward the upper left along the right side bevel of the first guide groove 321, so that the guide structure 520 tends to move away from the straight edge section and moves toward the lower right along the bevel section of the limiting structure 540 on the second sleeve assembly 400, thereby pushing the first protrusion 310 and the second protrusion 410 to move and contact the soil; when the second guide protrusion 420 moves along the left side bevel of the first guide groove 321, the guide structure 520 moves downward along the straight edge section of the limiting structure 540 on the second sleeve assembly 400 to the upper intersection of the bevel section and the straight edge section, completing a cycle.

[0050] Through such an arrangement, it is ensured that the guide structure 520 always moves along the oblique edge section of the limiting structure 540, thereby maintaining a stable rotation state, further enhancing the working efficiency and reliability of the soil drilling and collection device.

[0051] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A soil drilling and collecting device, characterized in that: The invention comprises: a sampling cylinder having a first axis, and the sampling cylinder moves along the first axis to perform soil collection; A drilling mechanism, the drilling mechanism comprising a plurality of first sleeve assemblies and a plurality of second sleeve assemblies, the first sleeve assemblies and the second sleeve assemblies are alternately arranged on the sampling barrel, and the first sleeve assemblies and the second sleeve assemblies are both capable of rotating around a first axis in opposite directions; The first sleeve assembly and the second sleeve assembly are both provided with adjustment assemblies, and a plurality of the adjustment assemblies are capable of moving along a direction perpendicular to the first axis; According to the hardness of the soil, the adjustment assembly cooperates with the soil hole wall to control the first sleeve assembly and the second sleeve assembly to rotate in opposite directions; the first sleeve assembly and the second sleeve assembly cooperate with the soil hole wall to drive the sampling tube to drill downward along the first axis to perform soil collection.

2. The soil drilling and collecting device according to claim 1, characterized in that: The adjusting assembly includes a first protrusion, and a plurality of the first protrusions are arranged on the first sleeve assembly around the first axis; the adjusting assembly includes a second protrusion, and a plurality of the second protrusions are arranged on the second sleeve assembly around the first axis.

3. The soil drilling and collecting device according to claim 2, characterized in that: The inclined surface direction of the first protrusion is the same as the rotation direction of the first sleeve assembly; the inclined surface direction of the second protrusion is the same as the rotation direction of the second sleeve assembly.

4. The soil drilling and collecting device according to claim 3, characterized in that: The first protrusion is provided with a first elastic reset member, and a plurality of the first elastic reset members always make the first protrusion move toward the direction of the sampling tube; the second protrusion is provided with a second elastic reset member, and a plurality of the second elastic reset members always make the second protrusion move toward the direction of the sampling tube.

5. The soil drilling and collecting device according to claim 4, characterized in that: It also includes a first control component that can move along the first axis. The first control component is provided with a guide structure. The plurality of guide structures are used to make the first protrusion and the second protrusion cooperate with the soil hole wall.

6. The soil drilling and collecting device according to claim 5, characterized in that: It also includes a second control assembly that can move along the first axis. The second control assembly is provided with a top block structure, and the top block structure is used to drive the guide structure to move in a direction away from the sampling cylinder.

7. The soil drilling and collecting device according to claim 5, characterized in that: The guide structure is provided with an elastic member, and the elastic member always makes the guide structure have a tendency to move toward the sampling cylinder.

8. The soil drilling and collecting device according to claim 7, characterized in that: The first sleeve assembly is provided with a first guide protrusion, and the second sleeve assembly is provided with a second guide groove. The first guide protrusion and the second guide groove cooperate to drive the first sleeve assembly and the second sleeve assembly to rotate in opposite directions; the first sleeve assembly is provided with a first guide groove, and the second sleeve assembly is provided with a second guide protrusion. The second guide protrusion and the first guide groove cooperate to drive the first sleeve assembly and the second sleeve assembly to rotate in opposite directions.

9. The soil drilling and collecting device according to claim 8, characterized in that: It also includes a limiting structure, a plurality of the limiting structures correspond one-to-one to the plurality of the guiding structures, and are arranged on the first sleeve assembly and the second sleeve assembly, and the limiting structures limit the movement of the guiding structures.

10. The soil drilling and collecting device according to claim 9, characterized in that: The limiting structure includes a straight edge segment and a bevel edge segment, and the straight edge segment and the bevel edge segment are arranged at an angle; the inclination direction of the bevel edge segment is opposite to the rotation direction of the correspondingly arranged first sleeve assembly and second sleeve assembly, so as to limit the movement of the guide structure.

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