Soil sampling device

Abstract

The utility model belongs to the technical field of soil sampling, and particularly relates to a soil sampling device which comprises a bearing plate, a through hole is formed in the middle of the bearing plate, a sampling mechanism is arranged at the position of the through hole, and the sampling mechanism comprises an upper clamping head, two sampling pipes and a lower clamping head; by arranging the sampling mechanism and the lifting assembly, the lifting assembly drives the sampling mechanism to continuously descend and rotate, so that soil at a sampling point can be collected between the two sampling pipes from top to bottom in a layered manner, and an operator can conveniently distinguish and analyze soil samples at different depths; and by arranging the supporting legs and the self-locking universal wheels and controlling the supporting legs and the self-locking universal wheels to stretch out or retract through the driving assembly, the device is convenient to move, and manpower loss of the device in the transportation process is greatly reduced.

Description

Technical Field

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

[0002] Soil sampling refers to the method of collecting soil samples, including the layout and sampling techniques of the samples. The collection of profile soil samples should be carried out after the profile observation and recording is completed. Before sampling, the profile should be repaired and cleaned, and the topmost loose soil should be removed. Then, samples should be taken from the central typical part layer by layer from top to bottom.

[0003] For example, a Chinese patent with publication number CN218512054U discloses a soil sample sampling device, including: two support rods, a hydraulic cylinder and a sampling mechanism for sampling deep soil, the top side walls of the two support rods are provided with mounting plates, the hydraulic cylinder is installed at the bottom of the mounting plate, the sampling mechanism is slidably connected between the two support rods, and the bottom of the hydraulic cylinder is connected to the sampling mechanism; the hydraulic cylinder and the sampling mechanism are limited by the support rods, and when the spiral rod of the sampling mechanism rotates driven by the motor, the hydraulic cylinder pushes the sampling mechanism to move downward, and by adjusting the distance that the hydraulic cylinder drives the sampling mechanism to move downward, the soil at different depths can be sampled, so that the data obtained during the detection is more accurate.

[0004] This patent has some shortcomings when used, such as: the sampling device in this patent supports the sampling body through two symmetrical support rods. Since the device has no auxiliary displacement tool, the operator needs to manually transfer the device before use, which is a waste of manpower. In addition, the sampling body in the device is the sampling head, which is located at the bottom of the spiral rod. The collection bin space inside the sampling head is relatively fixed. With the rotation of the spiral rod and the downward pressure of the hydraulic cylinder telescopic rod, only the soil samples of the upper layer of the sampling point can be collected in the collection bin, and the soil at each depth level of the sampling point cannot be sampled synchronously. In view of this, we propose a soil sampling device. Utility Model Content

[0005] The purpose of the utility model is to provide a soil sampling device to solve the problems raised in the above background technology.

[0006] In view of this, the utility model provides a soil sampling device, comprising:

[0007] A carrying plate, wherein a through hole is provided in the middle of the carrying plate, wherein a sampling mechanism is provided at the through hole, wherein the sampling mechanism comprises an upper clamp, two sampling tubes and a lower clamp, wherein the two sampling tubes are semi-cylindrical, wherein the upper clamp is provided at the top thread protrusion when the two sampling tubes are closed, and the upper clamp is threadably matched with the two sampling tubes, and a lower clamp is provided directly below the two sampling tubes, and the lower clamp is threadably matched with the bottom protrusion when the two sampling tubes are closed;

[0008] A lifting assembly, which is located on the upper surface of the carrying plate and is used to control the height of the sampling mechanism in the vertical direction;

[0009] A vertical groove, the vertical groove is opened on the lower surface of the bearing plate, the lower surface of the bearing plate is opened with two transverse grooves arranged perpendicular to the vertical groove, and the two transverse grooves are symmetrically arranged, and a card block with a C-shaped structure is symmetrically fixed near the two ends of the transverse groove, and a support leg is rotatably connected to the card block, and a self-locking universal wheel is fixed at the bottom end of the support leg;

[0010] A driving assembly, the driving assembly is located in the vertical slot and the two horizontal slots and is used to control the four supporting legs to extend or retract from the two corresponding horizontal slots;

[0011] Four electric push rods are respectively fixedly mounted on the lower surface of the bearing plate near the corners, and positioning columns are fixed to the telescopic ends of the electric push rods.

[0012] In the present technical solution, a sampling mechanism is provided, and two sampling tubes are used to form a sleeve shape to sample and collect soil. The two sampling tubes are constrained by the upper clamp and the lower clamp to avoid the two sampling tubes from splitting during sampling, thereby preserving the integrity of the soil. The sampling mechanism is driven to continuously descend and rotate by the lifting component, so that the soil at the sampling point can be collected from top to bottom in a layered manner between the two sampling tubes, which is convenient for operators to distinguish and analyze soil samples at different depths. Four supporting legs are provided and self-locking universal wheels are provided at the bottom of the supporting legs, and the extension or retraction of the four supporting legs is controlled by the driving component, so that the device can be easily moved on the ground by the four self-locking universal wheels when no sampling is performed, which greatly saves the manpower consumption of the device when moving and transporting.

[0013] In the above technical solution, further, the lifting assembly includes:

[0014] Two inverted L-shaped support arms are symmetrically arranged and fixedly mounted on the upper surface of the supporting plate near both sides of the through hole. The inner side walls of the support arms are provided with slide grooves with isosceles trapezoidal cross-sections. A support plate is sliding between the two support arms. Both sides of the support plate are provided with protrusions matching the slide grooves. The support plate slides in cooperation with the slide grooves. A hydraulic cylinder is fixed to the lower surface of the support arm, and the telescopic end of the hydraulic cylinder is fixed to the upper surface of the support plate. A motor 1 is fixed to the upper surface of the support plate and located directly above the through hole. The output shaft of the motor 1 passes through the support plate and extends to the bottom and is fixed with a spiral rod, and the bottom end of the spiral rod is coaxially connected to the upper clamp.

[0015] In this technical solution, by setting up a lifting component and driving it with a motor, the sampling mechanism can rotate to accelerate the sampling speed of the device. By using two hydraulic cylinders, the sampling mechanism can continuously go deeper into the ground to sample soil at different depths.

[0016] In the above technical solution, further, the driving component includes:

[0017] A double-axis motor, the double-axis motor is fixedly installed in the middle of the vertical slot, the output shaft of the double-axis motor is coaxially connected with a rotating rod, a worm is sleeved and fixed on the rotating rod, the circumferential side of the worm is meshingly connected with a worm wheel, a two-way threaded rod is rotatably connected in the transverse slot, and both ends of the two-way threaded rod are provided with fixed blocks fixed to the top surface in the transverse slot, the two-way threaded rod is rotatably matched with the two fixed blocks, a connecting rod is fixed at the axis center of the worm wheel, and the connecting rod passes through the vertical slot and extends into the transverse slot and is coaxially connected to the two-way threaded rod, two symmetrically arranged threaded blocks are threadedly connected at opposite threaded positions on the two-way threaded rod, and the thread blocks are slidably matched with the corresponding transverse slots, a pull rod is rotatably connected to the thread block, and the other end of the pull rod is rotatably matched with the inner side protrusion of the support leg.

[0018] In the present technical solution, a driving assembly is provided, a dual-axis motor is used for driving, and a rotating rod, a worm, a worm gear and a connecting rod are used for transmission, so that when the two threaded blocks are displaced in the transverse groove, the state of the supporting legs can be driven by pulling or pushing the pull rod, thereby realizing the retraction and extension of the supporting legs and the self-locking universal wheels. That is, when the device is displaced, the four supporting legs and the self-locking universal wheels can support and assist the movement of the main body of the device. When the device is sampling, the four supporting legs and the self-locking universal wheels can be retracted to the lower surface of the supporting plate to ensure that the four supporting legs can be stably inserted into the soil.

[0019] In the above technical solution, further, the lower surface of the lower chuck is provided with two circles of staggered convex teeth, and the multiple convex teeth in the same circle are equidistantly distributed around the circumference.

[0020] In the technical solution, convex teeth are provided on the lower surface of the lower chuck, so that the lower chuck can be easily rotated to drill holes in the soil.

[0021] In the above technical solution, further, the side wall of the support arm is provided with scale lines.

[0022] In this technical solution, by setting scale lines, it is convenient for operators to judge the sampling depth.

[0023] In the above technical solution, further, a level is installed on the upper surface of the supporting plate near the center of one side edge.

[0024] In the present technical solution, a level is provided to ensure that the supporting plate of the device is in a horizontal state when sampling, to ensure that the drilling is not tilted when the sampling mechanism of the device samples the soil, and to ensure the accuracy of the device in sampling the soil at various depths.

[0025] In the above technical solution, further, a handle is fixed to the upper surface of the carrier plate near one side of the dual-axis motor, and the handle is in an inverted U shape.

[0026] In the present technical solution, a handle is provided to facilitate an operator to push or pull the device for displacement, thereby facilitating the operator to exert force.

[0027] The beneficial effects of the utility model are:

[0028] 1. The soil sampling device is provided with four supporting legs and self-locking universal wheels at the bottom ends of the supporting legs, and the extension or retraction of the four supporting legs is controlled by a driving component, so that the device can be easily moved on the ground through the four self-locking universal wheels when not sampling, which greatly saves the manpower consumption when moving and transporting the device.

[0029] 2. The soil sampling device, by setting up a sampling mechanism, uses two sampling tubes to form a sleeve shape to sample and collect soil, and constrains the two sampling tubes through the upper clamp and the lower clamp to avoid the two sampling tubes from splitting during sampling, thereby preserving the integrity of the soil. The sampling mechanism is driven to continuously descend and rotate by the lifting component, so that the soil at the sampling point can be collected from top to bottom and in layers between the two sampling tubes, which is convenient for operators to distinguish and analyze soil samples at different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 It is a structural schematic diagram of the lifting component in the utility model;

[0032] Figure 3 This is an exploded schematic diagram of the upper clamp, sampling tube and lower clamp in the utility model;

[0033] Figure 4 It is a structural schematic diagram of the lower clamping head in the utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the drive assembly in the utility model (in a top view);

[0035] Figure 6 It is a schematic diagram of the local structure of the driving component in the utility model.

[0036] The symbols in the figure are:

[0037] 1. Loading plate; 2. Support arm; 3. Support plate; 4. Hydraulic cylinder; 5. Motor 1; 6. Screw rod; 7. Upper clamp; 8. Sampling tube; 9. Lower clamp; 10. Vertical slot; 11. Double-axis motor; 12. Rotating rod; 13. Worm; 14. Worm gear; 15. Connecting rod; 16. Bidirectional threaded rod; 17. Fixed block; 18. Threaded block; 19. Pull rod; 20. Clamp block; 21. Support leg; 22. Self-locking universal wheel; 23. Electric push rod; 24. Positioning column; 25. Level; 26. Handle. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0039] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0042] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or still includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0043] Embodiment 1:

[0044] See also Figure 1 - Figure 6 As shown, this embodiment provides a soil sampling device, comprising:

[0045] A carrying plate 1, a through hole is opened in the middle of the carrying plate 1, and a sampling mechanism is arranged at the through hole, the sampling mechanism comprises an upper clamp 7, two sampling tubes 8 and a lower clamp 9, the two sampling tubes 8 are semi-cylindrical, the upper clamp 7 is arranged at the top thread protrusion when the two sampling tubes 8 are closed, and the upper clamp 7 is threadedly matched with the two sampling tubes 8, and the lower clamp 9 is threadedly matched with the bottom protrusion when the two sampling tubes 8 are closed;

[0046] A lifting assembly, which is located on the upper surface of the carrying plate 1 and is used to control the height of the sampling mechanism in the vertical direction;

[0047] A vertical groove 10 is provided on the lower surface of the carrier plate 1. Two horizontal grooves are provided on the lower surface of the carrier plate 1 and are arranged perpendicular to the vertical groove 10. The two horizontal grooves are arranged symmetrically. A C-shaped block 20 is symmetrically fixed near both ends of the horizontal groove. A support leg 21 is rotatably connected to the block 20. A self-locking universal wheel 22 is fixed to the bottom end of the support leg 21.

[0048] A driving assembly, which is located in the vertical slot 10 and the two transverse slots and is used to control the four supporting legs 21 to extend or retract from the two corresponding transverse slots;

[0049] Four electric push rods 23 are respectively fixedly mounted on the lower surface of the bearing plate 1 near the corners, and positioning columns 24 are fixed to the telescopic ends of the electric push rods 23 .

[0050] When the device is in use, the four supporting legs 21 are extended from the transverse grooves through the driving assembly. At this time, the four self-locking universal wheels 22 are in contact with the ground. The operator pushes or pulls the device to the sampling location. After arriving at the sampling point, the driving assembly is started again to retract the four supporting legs 21 and the self-locking universal wheels 22 into the corresponding transverse grooves. At this time, the four positioning columns 24 are in contact with the ground. Then the four electric push rods 23 are started to insert the tips of the positioning columns 24 into the soil, so that the device can be in a stable state during sampling. Then the lifting assembly is started, and the lifting assembly drives the sampling mechanism to descend and rotate. The lower clamping head 9 in the sampling mechanism begins to break the soil and drills a circular gap. As the two sampling tubes 8 are closed to form a collecting tube, the lower clamping head 9 moves downward continuously. The cylindrical soil sample at the center of the head 9 is continuously able to enter the inner cavity of the tube groove formed when the two sampling tubes 8 are closed. After the sampling is completed, the lifting assembly is reversed. At this time, the sampling mechanism rises from the ground, and the operator holds the two sampling tubes 8 and rotates them. At this time, the two sampling tubes 8 and the lower clamping head 9 and the soil samples located in the inner cavities of the two sampling tubes 8 can be removed from the bottom of the lifting assembly. After removal, the operator then rotates the lower clamping head 9. At this time, the two sampling tubes 8 lose the constraints of the upper clamping head 7 and the lower clamping head 9. The operator moves the two sampling tubes 8 to both sides to expose the uniformly cylindrical soil samples located in the inner cavities of the two sampling tubes 8. The soil sample on the side close to the lower clamping head 9 is the soil at the bottom of the hole when drilling, and the soil sample on the side close to the upper clamping head 7 is the surface soil of the sampling point.

[0051] By setting up a sampling mechanism, two sampling tubes 8 are used to form a sleeve shape to sample and collect soil. The two sampling tubes 8 are constrained by the upper clamp 7 and the lower clamp 9 to avoid the two sampling tubes 8 from splitting during sampling, thereby preserving the integrity of the soil. The sampling mechanism is driven to continuously descend and rotate by the lifting component, so that the soil at the sampling point can be completely and hierarchically collected between the two sampling tubes 8 from top to bottom, which is convenient for operators to distinguish and analyze soil samples at different depths; by setting four supporting legs 21 and setting self-locking universal wheels 22 at the bottom of the supporting legs 21, and controlling the extension or retraction of the four supporting legs 21 by the driving component, the device can be easily moved on the ground by the four self-locking universal wheels 22 when no sampling is taking place, which greatly saves the manpower consumption of the device during movement and transportation.

[0052] Embodiment 2:

[0053] This embodiment provides a soil sampling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the lifting assembly includes:

[0054] Two inverted L-shaped support arms 2 are symmetrically arranged and fixedly mounted on the upper surface of the supporting plate 1 near both sides of the through hole. The inner side wall of the support arm 2 is provided with a slide groove with an isosceles trapezoidal cross-section. A support plate 3 is slid between the two support arms 2. Both sides of the support plate 3 are provided with protrusions matching the slide groove. The support plate 3 slides in cooperation with the slide groove. A hydraulic cylinder 4 is fixed to the lower surface of the support arm 2. The telescopic end of the hydraulic cylinder 4 is fixed to the upper surface of the support plate 3. A motor 5 is fixed to the upper surface of the support plate 3 and located directly above the through hole. The output shaft of the motor 5 passes through the support plate 3 and extends to the bottom and is fixed with a screw rod 6. The bottom end of the screw rod 6 is coaxially connected to the upper clamp 7.

[0055] Among them, when the lifting assembly is working, the motor 5 and the two hydraulic cylinders 4 are started, and the output shaft of the motor 5 rotates to drive the spiral rod 6 and the sampling mechanism located below the spiral rod 6 to rotate. The telescopic rod of the hydraulic cylinder 4 extends downward and pushes the support plate 3, the spiral rod 6 and the sampling mechanism to move downward. As the lower clamping head 9 in the sampling mechanism continues to rotate, the soil located at the center of the lower clamping head 9 can continuously enter the inner cavity of the two sampling tubes 8, and the spiral rod 6 located above the sampling mechanism can expand the borehole and transport the soil around the borehole to the ground.

[0056] By setting up a lifting component and driving it with a motor 5, the sampling mechanism can be rotated to accelerate the sampling speed of the device. By using two hydraulic cylinders 4, the sampling mechanism can continuously go deeper into the ground to sample soil at different depths.

[0057] Embodiment 3:

[0058] This embodiment provides a soil sampling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0059] A double-axis motor 11 is fixedly installed in the middle of the vertical slot 10. The output shaft of the double-axis motor 11 is coaxially connected with a rotating rod 12. A worm 13 is sleeved and fixed on the rotating rod 12. The circumferential side of the worm 13 is meshed with a worm wheel 14. A bidirectional threaded rod 16 is rotatably connected in the transverse slot, and both ends of the bidirectional threaded rod 16 are provided with fixed blocks 17 fixed to the top surface of the transverse slot. The bidirectional threaded rod 16 rotates with the two fixed blocks 17. A connecting rod 15 is fixed at the axis of the worm wheel 14, and the connecting rod 15 passes through the vertical slot 10 and extends into the transverse slot and is coaxially connected to the bidirectional threaded rod 16. Two symmetrically arranged threaded blocks 18 are threadedly connected at opposite threaded positions on the bidirectional threaded rod 16, and the threaded blocks 18 slide in cooperation with the corresponding transverse slots. A pull rod 19 is rotatably connected to the threaded block 18, and the other end of the pull rod 19 rotates with the inner protrusion of the support leg 21.

[0060] Among them, when the driving component is working, the dual-axis motor 11 is started, the two output shafts of the dual-axis motor 11 rotate, and drive the corresponding rotating rod 12 to rotate, and the worm 13 on the rotating rod 12 rotates accordingly, and the worm 13 drives the worm wheel 14 to rotate, and the connecting rod 15 on the worm wheel 14 rotates accordingly, and the connecting rod 15 drives the bidirectional threaded rod 16 to rotate. Under the cooperation of thread force and transverse groove, the two thread blocks 18 on the same bidirectional threaded rod 16 can be displaced inward or outward at the same time. When the thread block 18 is displaced in the transverse groove, it can pull or push the pull rod 19, and the pull rod 19 pulls or pushes the support leg 21, thereby changing the state of the support leg 21. It is worth mentioning that the inner protrusion of the support leg 21 is arranged near the lower middle position of the support leg 21, and the support leg 21 matches the transverse groove. When the support leg 21 is placed horizontally, part of the position of the support leg 21 can be retracted into the transverse groove.

[0061] By setting up a driving component, using a dual-axis motor 11 for driving, and transmitting through a rotating rod 12, a worm 13, a worm gear 14 and a connecting rod 15, when the two threaded blocks 18 are displaced in the transverse groove, the state of the support legs 21 can be driven by pulling or pushing the pull rod 19, thereby realizing the retraction and extension of the support legs 21 and the self-locking universal wheels 22. That is, when the device is displaced, the four support legs 21 and the self-locking universal wheels 22 can support and assist the movement of the main body of the device. When the device is sampling, the four support legs 21 and the self-locking universal wheels 22 can be retracted to the lower surface of the supporting plate 1, ensuring that the four support legs 21 can be stably inserted into the soil.

[0062] Embodiment 4:

[0063] This embodiment provides a soil sampling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the lower surface of the lower clamping head 9 is provided with two circles of staggered convex teeth, and the multiple convex teeth in the same circle are equidistantly distributed around the circumference.

[0064] By providing convex teeth on the lower surface of the lower clamping head 9, it is convenient for the lower clamping head 9 to drill holes in the soil when it rotates.

[0065] Embodiment 5:

[0066] This embodiment provides a soil sampling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the side wall of the support arm 2 is provided with scale lines.

[0067] Among them, the operator can determine the soil sampling depth by penetrating the position between the scale line and the lower surface of the support plate 3. It is worth adding that the lower surface of the support plate 3 in the present application is flush with the scale line 0 position.

[0068] By setting the scale line, it is convenient for operators to judge the sampling depth.

[0069] Embodiment 6:

[0070] This embodiment provides a soil sampling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a level 25 is installed on the upper surface of the supporting plate 1 near the center of one side edge.

[0071] The operator can use the level meter 25 to determine whether the support plate 1 is in a horizontal state, and adjust the support plate 1 to a horizontal state through the four electric push rods 23 in combination with the level meter 25 .

[0072] By setting the level 25, it is ensured that the supporting plate 1 can be in a horizontal state when the device is sampling, and it is ensured that the drilling will not be tilted when the sampling mechanism of the device samples the soil, thereby ensuring the accuracy of the device in sampling soil at various depths.

[0073] Embodiment 7:

[0074] This embodiment provides a soil sampling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a handle 26 is fixed to the upper surface of the supporting plate 1 near one side of the dual-axis motor 11, and the handle 26 is in an inverted U shape.

[0075] The operator can move the device by pulling or pushing the handle 26 .

[0076] By providing the handle 26, it is convenient for the operator to push or pull the device to move, and it is convenient for the operator to exert force.

[0077] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A soil sampling device, characterized in that: include: A carrier plate (1), wherein a through hole is provided in the middle of the carrier plate (1), wherein a sampling mechanism is provided at the through hole, wherein the sampling mechanism comprises an upper clamp (7), two sampling tubes (8) and a lower clamp (9), wherein the two sampling tubes (8) are semi-cylindrical, wherein the upper clamp (7) is provided at a top threaded protrusion when the two sampling tubes (8) are closed, and the upper clamp (7) is threadedly matched with the two sampling tubes (8), and the lower clamp (9) is threadedly matched with a bottom protrusion when the two sampling tubes (8) are closed; A lifting assembly, the lifting assembly being located on the upper surface of the carrying plate (1) and being used to control the height of the sampling mechanism in the vertical direction; A vertical groove (10), wherein the vertical groove (10) is provided on the lower surface of the bearing plate (1), and the lower surface of the bearing plate (1) is provided with two transverse grooves which are arranged perpendicular to the vertical groove (10), and the two transverse grooves are arranged symmetrically, and a clamping block (20) with a C-shaped structure is symmetrically fixed near the two ends of the transverse groove, and a support leg (21) is rotatably connected to the clamping block (20), and a self-locking universal wheel (22) is fixed at the bottom end of the support leg (21); A driving assembly, the driving assembly being located in the vertical slot (10) and the two transverse slots and being used to control the four supporting legs (21) to extend or retract from the two corresponding transverse slots; Four electric push rods (23) are respectively fixedly mounted on the lower surface of the bearing plate (1) near the corners, and positioning columns (24) are fixed to the telescopic ends of the electric push rods (23).

2. A soil sampling device according to claim 1, characterized in that: The lifting assembly comprises: Two inverted L-shaped support arms (2), the two support arms (2) are symmetrically arranged and fixedly mounted on the upper surface of the bearing plate (1) near both sides of the through hole, the inner side walls of the support arms (2) are provided with a slide groove with a cross-section in the shape of an isosceles trapezoid, a support plate (3) is slidably arranged between the two support arms (2), both sides of the support plate (3) are provided with protrusions matching the slide groove, the support plate (3) and the slide groove are slidably matched, a hydraulic cylinder (4) is fixed on the lower surface of the support arm (2), the telescopic end of the hydraulic cylinder (4) is fixed to the upper surface of the support plate (3), a motor (5) is fixed on the upper surface of the support plate (3) and located directly above the through hole, the output shaft of the motor (5) passes through the support plate (3) and extends to the bottom and is fixed with a screw rod (6), the bottom end of the screw rod (6) is coaxially connected to the upper clamp (7).

3. A soil sampling device according to claim 1, characterized in that: The drive assembly comprises: A double-axis motor (11), the double-axis motor (11) is fixedly installed in the middle of the vertical slot (10), the output shaft of the double-axis motor (11) is coaxially connected to a rotating rod (12), a worm (13) is sleeved and fixed on the rotating rod (12), the peripheral side of the worm (13) is meshed and connected to a worm wheel (14), a bidirectional threaded rod (16) is rotatably connected in the transverse slot, and two ends of the bidirectional threaded rod (16) are provided with fixed blocks (17) fixed to the top surface of the transverse slot, the bidirectional threaded rod (16) and the two fixed blocks (17) are connected to the two fixed blocks (17) 7) Rotational cooperation, a connecting rod (15) is fixed at the axis of the worm gear (14), and the connecting rod (15) passes through the vertical groove (10) and extends into the transverse groove to be coaxially connected with the bidirectional threaded rod (16), and two symmetrically arranged threaded blocks (18) are threadedly connected at opposite threaded positions on the bidirectional threaded rod (16), and the threaded blocks (18) are slidably matched with the corresponding transverse grooves, and a pull rod (19) is rotationally connected to the threaded block (18), and the other end of the pull rod (19) is rotationally matched with the inner protrusion of the support leg (21).

4. A soil sampling device according to claim 1, characterized in that: The lower surface of the lower clamping head (9) is provided with two circles of staggered convex teeth, and a plurality of convex teeth in the same circle are equidistantly distributed around the circumference.

5. A soil sampling device according to claim 2, characterized in that: The side wall of the support arm (2) is provided with scale lines.

6. A soil sampling device according to claim 1, characterized in that: A level (25) is installed on the upper surface of the bearing plate (1) near the center of one side edge.

7. A soil sampling device according to claim 1, characterized in that: A handle (26) is fixed on the upper surface of the carrier plate (1) near one side of the dual-axis motor (11), and the handle (26) is in an inverted U shape.

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