A sampling device for mine repair

Abstract

The present invention relates to the technical field of sampling for mine pit restoration, and in particular to a sampling device for mine pit restoration, comprising a wheelbarrow, wherein the wheelbarrow comprises a frame and a pair of wheels, wherein the two wheels are symmetrically rotatably mounted on both sides of the bottom of the frame, and further comprises a split sampling assembly, an impact pressing assembly and a combined compression assembly, wherein the split sampling assembly comprises a pair of sampling tubes, a support rod, a pair of connecting plates and a soil separation mechanism, wherein the two sampling tubes are combined into a cylindrical structure with a hollow bottom, and the bottoms of the two sampling tubes are both inclined structures and are in opposite directions. In order to be able to insert a cutter head into the ground in sections and to reduce the friction between the cutter head and the soil, the present invention reduces friction by moving a pair of detachable sampling tubes downward at one time and inserting them into the ground, and squeezes the soil by pushing the two sampling tubes to fit together, so that the soil is separated from the inner wall of the sampling pit, thereby further reducing resistance, thereby improving the stability of the device while reducing work intensity and use cost.

Description

Technical Field

[0001] The invention relates to the technical field of mine pit restoration sampling, and in particular to a sampling device for mine pit restoration. Background Art

[0002] Mine pit remediation, also known as mine pit ecological restoration, needs to follow the principle of applying force to nature and adapting to local conditions. It is restricted by factors such as topography, climate characteristics, hydrological conditions, soil physical, chemical and biological characteristics, topsoil conditions, and potential pollution. Therefore, it is necessary to sample and test the soil in the mine pit in order to formulate a suitable remediation plan.

[0003] At present, most sampling devices for mine pit remediation use soil sampling rings. The soil sampling ring is a ring-shaped structure with a hollow cutter head at the bottom. The soil inside the cutter head is separated from the ground by inserting the soil sampling ring into the target soil. The soil sampling ring is then pulled out of the ground to bring out the target soil. Finally, the soil in the soil sampling ring is poured out to complete the sampling. The advantage of this solution is that the soil sampling ring is small in size and relatively light, which is easy for users to carry and can adapt to complex outdoor usage scenarios. However, since the annular cutter head directly separates the target soil from the ground, the friction between the cutter head and the soil is relatively large, and it is relatively laborious to insert the soil sampling ring into the ground and pull it out.

[0004] There is also a solution for a soil sampling device in the prior art, which is to sample by a hydraulic rod driving the soil ring knife to move up and down. The advantage of this solution is that it reduces labor intensity and can facilitate sampling of deeper soil, but it still has the following disadvantages: first, the cutter head is inserted into the soil by continuous downward pressure, which requires the use of a high-power hydraulic rod and is costly; second, it is not easy to reduce the friction between the cutter head and the soil. When the cutter head is pulled out, the large inertia easily destroys the stability of the device and creates a safety hazard, so it needs to be improved. Summary of the invention

[0005] The object of the present invention is to provide a sampling device for mine pit repair, which can insert the cutter head into the ground in sections and reduce the friction between the cutter head and the soil, thereby improving the stability of the device while reducing the work intensity and use cost.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A sampling device for mine pit restoration is provided, comprising a wheelbarrow, which comprises a frame and a pair of wheels. The two wheels are symmetrically rotatably installed on both sides of the bottom of the frame. The wheelbarrow also comprises a split sampling component, an impact pressing component and a combined compression component. The split sampling component comprises a pair of sampling barrels, a support rod, a pair of connecting plates and a soil separation mechanism. The two sampling barrels are combined into a cylindrical structure with a hollow bottom. The bottoms of the two sampling barrels are both inclined structures and are in opposite directions. One end of the support rod passes through the side wall of the frame and is slidably connected thereto. The connecting plate is rotatably connected to the periphery of the rotating rod. A pair of fisheye grooves are symmetrically provided on both sides of the connecting plate. A pair of semicircular grooves are provided on one side of the sampling barrel. Both sides of the connecting plate are rotatably connected to the semicircular grooves on the two sampling barrels. A round rod is fixedly connected between the inner walls at both ends of the semicircular grooves, and the round rod passes through the fisheye grooves and is slidably connected thereto. The impact pressing component and the combined compression component are both installed on the frame. The impact pressing component is used to press the sampling barrel into the ground. The combined compression component is used to push the two sampling barrels to fit each other.

[0008] Preferably, the impact-pressing assembly includes a pair of connecting plates, a support frame, a pair of impact blocks, a pair of telescopic rods, a pair of tension springs and a lifting mechanism, one end of the connecting plate is fixedly connected to the top of the sampling tube, a pair of through-grooves are provided on the side wall at one end of the frame, the other end of the connecting plate extends through the grooves to the interior of the frame, the support frame can be vertically slidably installed on the frame, the bottom of the telescopic rod is fixedly connected to the support frame, the top of the telescopic rod is fixedly connected to one side of the impact block, the tension spring is sleeved on the periphery of the telescopic rod, one end of the tension spring is fixedly connected to the impact block, the other end of the tension spring is fixedly connected to the support frame, the bottom of the impact block and the top of the connecting plate are in conflict with each other, the lifting mechanism is installed on the support frame, and the lifting mechanism is used to lift and then drop the impact block.

[0009] Preferably, the lifting mechanism includes a pair of first gears, a pair of lifting rods, multiple rotating shafts and multiple rotating rods, one end of the two first gears is coaxially connected to one end of the pair of rotating shafts, the other end of the rotating shaft is rotatably connected to the support frame, the two first gears are meshed with each other, the other ends of the two first gears are eccentrically fixedly connected to one of the pairs of rotating rods, the other end of the rotating rod is rotatably connected to the lifting rod, the two lifting rods are symmetrically distributed up and down and are respectively located at both ends of the first gears, when the rotating rod rotates to the bottom with the first gear, the top of one end of the lifting rod and the bottom of the other end of the impact block are fitted with each other, and when the rotating rod rotates to the top with the first gear, the top of one end of the lifting rod and the bottom of the other end of the impact block are separated from each other.

[0010] Preferably, the lifting mechanism also includes a pair of discs and two sets of pulleys, the two discs are symmetrically distributed on both sides of the two first gears, one end of the two discs is coaxially connected to one end of another pair of rotating shafts, and the other ends of the two discs are eccentrically fixedly connected to another pair of rotating rods, the two sets of pulleys are respectively sleeved on the periphery of multiple rotating shafts at both ends, and a set of pulleys are driven by belts.

[0011] Preferably, the lifting mechanism also includes a second gear and a first motor, one end of the first motor is fixedly connected to the support frame, the output shaft of the first motor passes through the support frame and meshes with the second gear, and the second gear meshes with one of the first gears.

[0012] Preferably, the impact pressure assembly also includes a pair of slide rails and a pair of electric sliders, the two slide rails are respectively fixedly connected to the inner walls of the frame on both sides, the electric slider is slidably connected to the outer periphery of one side of the slide rails, and the two sides of the support frame are respectively fixedly connected to the two electric sliders.

[0013] Preferably, the combined compression assembly includes a pair of clamps, a bidirectional threaded rod, a pair of support plates and a second motor, the clamps are symmetrically distributed on both sides of the two sampling tubes, the two clamps are respectively fitted with the opposite sides of the two sampling tubes, the support plates are fixedly connected to the inner wall of the frame, the bidirectional threaded rod is rotatably installed between the two support plates, one end of the clamp passes through the side wall of the frame and is threadedly connected to the outer periphery of the bidirectional threaded rod, the thread grooves on the two clamps are in opposite directions, one side of the second motor is fixedly connected to one of the support plates, and the output shaft of the second motor passes through the support plate and is coaxially connected to the bidirectional threaded rod.

[0014] Preferably, the soil separation mechanism comprises a piston plate, a pedal and a pair of return springs, the piston plate is slidably connected to the inner wall of the sampling cylinder, one end of the pedal passes through one of the side walls of the sampling cylinder and is fixedly connected to the piston plate, one end of the return spring is fixedly connected to the top of the piston plate, the other end of the return spring is fixedly connected to the top wall of the sampling cylinder, and the side wall of the sampling cylinder is fixedly connected with a handle (26).

[0015] Preferably, the split sampling assembly also includes a limit plate, which is fixedly connected to the inner wall of one end of the frame, and the top of the limit plate and the bottom of the connecting plate are in conflict with each other.

[0016] Beneficial effects of the present invention:

[0017] 1. The two sampling tubes of the present invention can be separated from each other. When sampling the soil in a mine pit, the two sampling tubes are first separated from each other and then inserted into the soil one after the other. This can reduce the contact area between the soil and the sampling tubes and thus reduce the friction. The two sampling tubes are moved down in batches to further reduce the friction caused by soil squeezing, so that soil can be easily sampled and the workload of soil sampling can be reduced.

[0018] 2. The two sampling tubes of the present invention can also fit together. After the sampling tubes are inserted to a suitable depth, the two sampling tubes are pushed to fit together by merging the compression assembly, thereby compressing the soil inside and creating a gap between it and the external soil, thereby avoiding friction between the sampling tube and the inner wall of the sampling pit, and further reducing the resistance to removing the soil.

[0019] 3. The impact-pressing assembly provided in the present invention can continuously impact the two sampling cylinders downward in sequence, so that a dynamic connection is achieved between the two sampling cylinders, so that they can move downward in sections without being completely separated, so that the two sampling cylinders can be inserted into the soil one after another, thereby reducing the contact area between the soil and the sampling cylinders and thereby reducing the friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0022] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0023] Figure 3 The frame structure of the present invention is a perspective view Figure 1 .

[0024] Figure 4 It is a structural schematic diagram of a handcart of the present invention.

[0025] Figure 5 The frame structure of the present invention is a perspective view Figure 2 .

[0026] Figure 6 It is a schematic diagram of the structure of the split sampling component of the present invention.

[0027] Figure 7 It is a structural breakdown diagram of the split sampling component of the present invention.

[0028] Figure 8 It is a structural exploded view of the soil separation mechanism of the present invention.

[0029] Fig. 9 It is a schematic diagram of the structure of the combined compression component of the present invention.

[0030] Fig.10 yes Figure 3 A magnified view of the structure at center.

[0031] Fig.11 It is a schematic diagram of the support frame structure of the present invention.

[0032] Fig.12 This is a schematic diagram of the impact pressure component structure of the present invention. Figure 1 .

[0033] Fig.13 This is a schematic diagram of the impact pressure component structure of the present invention. Figure 2 .

[0034] Fig.14 It is a structural schematic diagram of the lifting mechanism of the present invention.

[0035] In the figure:

[0036] 1. cart; 10. frame; 100. empty slot; 11. wheel;

[0037] 2. Split sampling assembly; 20. Sampling tube; 200. Semicircular groove; 21. Support rod; 22. Connecting piece; 220. Fisheye groove; 23. Round rod; 24. Soil separation mechanism; 240. Piston plate; 241. Pedal; 242. Return spring; 25. Limit plate; 26. Handle;

[0038] 3. Impact pressing assembly; 30. Connecting plate; 31. Support frame; 32. Impact block; 33. Telescopic rod; 34. Tension spring; 35. Lifting mechanism; 350. First gear; 351. Lifting rod; 352. Rotating shaft; 353. Rotating rod; 354. Disc; 355. Pulley; 356. Second gear; 357. First motor; 36. Slide rail; 37. Electric slider;

[0039] 4. Combined compression assembly; 40. Clamp; 41. Bidirectional threaded rod; 42. Support plate; 43. Second motor. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0041] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0042] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the 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. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figures 1 to 14 As shown:

[0045] A sampling device for mine pit repair includes a cart 1. The cart 1 includes a frame 10 and a pair of wheels 11. The two wheels 11 are symmetrically rotatably installed on both sides of the bottom of the frame 10. The cart 1 supports and moves a split sampling assembly 2, which is convenient for use on the mine site. It also includes a split sampling assembly 2, an impact pressure assembly 3 and a combined compression assembly 4. The split sampling assembly 2 includes a pair of sampling barrels 20, a support rod 21, a pair of connecting plates 22 and a soil separation mechanism 24. The two sampling barrels 20 are combined into a cylindrical structure with a hollow bottom. The bottoms of the two sampling barrels 20 are both inclined structures and are in opposite directions. One end of the support rod 21 passes through the side wall of the frame 10 and is slidably connected thereto. The connecting plate 22 is rotatably connected to the outer periphery of the rotating rod 353. A pair of fisheye grooves 220 are symmetrically opened on both sides of the connecting plate 22. A pair of semicircular grooves 200 are opened on one side of the sampling barrel 20. The two sides of the connecting plate 22 are respectively connected to the two The semicircular grooves 200 on the sampling tubes 20 are rotatably connected, and a round rod 23 is fixedly connected between the inner walls at both ends of the semicircular grooves 200. The round rod 23 passes through the fisheye groove 220 and is slidably connected thereto. The two sampling tubes 20 can be separated from each other or fit together. When sampling the soil in the mine, the two sampling tubes 20 are first separated from each other and connected by the support rod 21 and the connecting piece 22. The trolley 1 is placed vertically on the ground and the bottom of the sampling tube 20 is aligned with the target soil. The two sampling tubes 20 are continuously impacted downward by the impact pressing assembly 3 in sequence, so that the sampling tube 20 moves to the bottom under the support of the support rod 21. The connecting piece 22 rotates between the two sampling tubes 20, and the fisheye groove 220 is used to consume the stroke between the two round rods 23, so that the two sampling tubes 20 are dynamically connected, so that they can move down in sections and will not be completely separated, so that the two sampling tubes 20 are inserted into the soil one after another, which can reduce the contact area between the soil and the sampling tube 20 and thus reduce the friction. The two sampling tubes 20 move down in batches, further reducing the friction caused by soil compression, making it easy to take soil and reducing the work intensity of soil sampling. Through the relative inclined surfaces at the bottom of the two sampling tubes 20, the two sampling tubes 20 are squeezed with the soil during the downward movement, so that the two sampling tubes 20 are further separated, avoiding the bottoms of the two sampling tubes 20 from fitting together. After the sampling tubes 20 are inserted to a suitable depth, the two sampling tubes 20 are pushed to fit each other by merging the compression assembly 4, compressing the soil inside, and creating a gap between the two sampling tubes 20 and the external soil, thereby avoiding friction between the sampling tube 20 and the inner wall of the sampling pit, further reducing the resistance to taking out the soil, and then pulling the sampling tube 20 out from the ground to complete the sampling. The impact-pressing assembly 3 and the combined compression assembly 4 are both installed on the vehicle frame 10 . The impact-pressing assembly 3 is used to press the sampling tube 20 into the ground, and the combined compression assembly 4 is used to push the two sampling tubes 20 to fit together.

[0046] like Figures 1 to 14 As shown:

[0047] The impact pressing assembly 3 includes a pair of connecting plates 30, a support frame 31, a pair of impact blocks 32, a pair of telescopic rods 33, a pair of tension springs 34 and a lifting mechanism 35. One end of the connecting plate 30 is fixedly connected to the top of the sampling tube 20. A pair of through-grooves 100 are provided on the side wall of one end of the frame 10. The other end of the connecting plate 30 extends through the grooves 100 to the inside of the frame 10. The support frame 31 can be vertically slidably installed on the frame 10. The bottom of the telescopic rod 33 is fixedly connected to the support frame 31. The top of the telescopic rod 33 is fixedly connected to one side of the impact block 32. The tension spring 34 is sleeved on the periphery of the telescopic rod 33. One end of the tension spring 34 is fixedly connected to the impact block 32. The other end of the tension spring 34 is fixedly connected to the support frame 31. The bottom of the impact block 32 and the top of the connecting plate 30 conflict with each other. The lifting mechanism 35 is installed on the support frame 31. The lifting mechanism 35 is used to lift and then drop the impact block 32. The two impact blocks 32 are lifted up and then dropped in sequence by the lifting mechanism 35, so that the tension spring 34 is stretched first and then contracted. The gravity of the impact block 32 plus the tension of the tension spring 34 generates a large inertia, and the impact block 32 impacts the connecting plate 30 to convert the inertia into an impact force, so that the sampling tube 20 is pressed down into the soil. The telescopic rod 33 follows the tension spring 34 to extend and retract, and ensures that the tension spring 34 does not bend, thereby realizing the segmented pressing of the sampling tube 20 into the soil. Compared with the traditional method of continuous pressing, it is more labor-saving and reduces the driving force requirement, thereby reducing the sampling cost.

[0048] like Figures 1 to 14 As shown:

[0049] The lifting mechanism 35 includes a pair of first gears 350, a pair of lifting rods 351, multiple rotating shafts 352 and multiple rotating rods 353. One end of the two first gears 350 is coaxially connected to one end of one pair of rotating shafts 352, and the other end of the rotating shaft 352 is rotatably connected to the support frame 31. The two first gears 350 are meshed with each other, and the other ends of the two first gears 350 are eccentrically fixedly connected to one of the pairs of rotating rods 353 respectively, and the other end of the rotating rod 353 is rotatably connected to the lifting rod 351. The first gears 350 are rotatably installed on the support frame 31 through the rotating shaft 352, so that one of the first gears 350 rotates. Through the meshing transmission between the two first gears 350, the two first gears 350 can be driven to rotate in the opposite direction at the same time, so that the lifting rod 351 follows the first gear 350 to make a circular motion, and at the same time, the lifting rod 351 is kept in a horizontal state during the movement, so that the two impact blocks 32 can be lifted and lowered respectively. The two lifting rods 351 are symmetrically distributed up and down and are respectively located at the two ends of the first gear 350. The two lifting rods 351 are distributed up and down so that the two impact blocks 32 can be lifted up respectively, so that the two sampling tubes 20 can be lowered in batches. The two lifting rods 351 are respectively located at the two ends of the first gear 350 to avoid mutual interference and hindering the rotation. When the rotating rod 353 rotates to the bottom with the first gear 350, the top of one end of the lifting rod 351 and the bottom of the other end of the impact block 32 fit each other. At this time, as the first gear 350 rotates, one end of the lifting rod 351 is inserted into the bottom of the impact block 32. The first gear 350 continues to rotate, and the lifting rod 351 can lift the impact block 32. When the rotating rod 353 rotates to the top with the first gear 350, the top of one end of the lifting rod 351 and the bottom of the other end of the impact block 32 are separated from each other. At this time, the impact block 32 loses its supporting force and falls from a high place, hitting the connecting plate 30.

[0050] like Figures 1 to 14 As shown:

[0051] The lifting mechanism 35 further includes a pair of disks 354 and two groups of pulleys 355. The two disks 354 are symmetrically distributed on both sides of the two first gears 350. One end of the two disks 354 is coaxially connected to one end of the other pair of rotating shafts 352. The other ends of the two disks 354 are fixedly connected to the other pair of rotating rods 353 at eccentric locations. The two groups of pulleys 355 are respectively sleeved on the periphery of the multiple rotating shafts 352 at both ends, and a group of pulleys 355 are driven by a belt. The rotating shaft 352 on the first gear 350 rotates to drive one of the pulleys 355 to rotate, and the two pulleys 355 rotate by the belt, so that the first gears 350 on both sides and the disks 354 are synchronously driven, and the lifting rods 351 are respectively connected to the first gears 350 and the disks 354 at different positions, so that the lifting rods 351 always maintain a horizontal state during the movement, thereby continuously lifting the impact block 32.

[0052] like Figures 1 to 14 As shown:

[0053] The lifting mechanism 35 further includes a second gear 356 and a first motor 357. One end of the first motor 357 is fixedly connected to the support frame 31. The output shaft of the first motor 357 passes through the support frame 31 and meshes with the second gear 356. The second gear 356 meshes with one of the first gears 350. When the first motor 357 is powered on, its output shaft drives the second gear 356 to rotate. Through the meshing transmission between the second gear 356 and the first gear 350, one of the second gears 356 can be driven to rotate, so that the lifting mechanism 35 works. The position of the motor can be changed through the transmission of the second gear 356 to prevent the motor from hindering the movement of the lifting rod 351.

[0054] like Figures 1 to 11 As shown:

[0055] The impact and pressure assembly 3 further includes a pair of slide rails 36 and a pair of electric sliders 37. The two slide rails 36 are respectively fixedly connected to the inner walls of the two sides of the frame 10, and the electric sliders 37 are slidably connected to the outer periphery of one side of the slide rails 36. The two sides of the support frame 31 are respectively fixedly connected to the two electric sliders 37. When the electric sliders 37 are powered on, the support frame 31 is driven to slide up and down along the slide rails 36, so that the height of the impact and pressure assembly 3 can be adjusted to use the height of the sampling barrel 20 to descend and extend the sampling depth of the sampling barrel 20.

[0056] like Figures 1 to 9 As shown:

[0057] The combined compression assembly 4 includes a pair of clamps 40, a bidirectional threaded rod 41, a pair of support plates 42 and a second motor 43. The clamps 40 are symmetrically distributed on both sides of the two sampling tubes 20. The two clamps 40 are respectively fitted with the opposite sides of the two sampling tubes 20. The support plates 42 are fixedly connected to the inner wall of the frame 10. The bidirectional threaded rod 41 is rotatably installed between the two support plates 42. One end of the clamp 40 passes through the side wall of the frame 10 and is threadedly connected to the outer periphery of the bidirectional threaded rod 41. The thread grooves on the two clamps 40 are in opposite directions. One side of the second motor 43 is fixedly connected to one of the support plates 42. The output shaft of the second motor 43 passes through the support plate 42 and is coaxially connected to the bidirectional threaded rod 41. After the sampling tube 20 descends to a suitable depth, the second motor 43 is powered on and its output shaft drives the bidirectional threaded rod 41 to rotate. Through the threaded transmission between the bidirectional threaded rod 41 and the clamping plate 40, the two clamping plates 40 are driven to slide horizontally and approach each other, thereby pushing the two sampling tubes 20 to approach each other until they fit together, compressing the soil inside and separating it from the inner wall of the sampling pit, reducing friction when pulling out the sampling tube 20, and facilitating the maintenance of the stability of the device.

[0058] like Figures 1 to 8 As shown:

[0059] The soil separation mechanism 24 includes a piston plate 240, a pedal 241 and a pair of return springs 242. The piston plate 240 is slidably connected to the inner wall of the sampling tube 20. One end of the pedal 241 passes through one of the side walls of the sampling tube 20 and is fixedly connected to the piston plate 240. One end of the return spring 242 is fixedly connected to the top of the piston plate 240. The other end of the return spring 242 is fixedly connected to the top wall of the sampling tube 20. A handle 26 is fixedly connected to the side wall of the sampling tube 20. After the sampling tube 20 is pulled out of the ground, the two sampling tubes 20 are separated, the handle 26 is held by hand, and the pedal 241 is stepped on by foot at the same time, so that the return spring 242 is stretched, the piston plate 240 slides in the sampling tube 20, and the soil is pushed out of the sampling tube 20. Then the return spring 242 rebounds to drive the piston plate 240 and the pedal 241 to reset, so that the soil can be taken out of the sampling tube 20.

[0060] like Figures 1 to 5 As shown:

[0061] The split sampling assembly 2 also includes a limit plate 25, which is fixedly connected to the inner wall of one end of the frame 10, and the top of the limit plate 25 contacts the bottom of the connecting plate 30. After the sampling tube 20 is lowered to a suitable depth, the bottoms of the two connecting plates 30 contact the tops of the limit plates 25 in turn, limiting the sampling tube 20 so that the heights of the two sampling tubes 20 are aligned with each other, which is convenient for fitting and compression.

[0062] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not limiting, but are only for the convenience of clearly describing the positional relationship and function between the various components.

Claims

1. A sampling device for mine restoration, comprising a trolley (1), the trolley (1) comprising a frame (10) and a pair of wheels (11), the two wheels (11) being symmetrically rotatably mounted on both sides of the bottom of the frame (10), characterized in that: The vehicle also includes a split sampling assembly (2), an impact pressing assembly (3) and a combined compression assembly (4). The split sampling assembly (2) includes a pair of sampling tubes (20), a support rod (21), a pair of connecting plates (22) and a soil separation mechanism (24). The two sampling tubes (20) are combined into a cylindrical structure with a hollow bottom. The bottoms of the two sampling tubes (20) are both inclined structures with opposite directions. One end of the support rod (21) passes through the side wall of the vehicle frame (10) and is slidably connected thereto. The connecting plate (22) is rotatably connected to the outer periphery of the rotating rod (353). A pair of fisheyes are symmetrically provided on both sides of the connecting plate (22). A pair of semicircular grooves (200) are provided on one side of the sampling tube (20), and the two sides of the connecting piece (22) are respectively rotatably connected to the semicircular grooves (200) on the two sampling tubes (20). A round rod (23) is fixedly connected between the inner walls at both ends of the semicircular grooves (200), and the round rod (23) passes through the fisheye groove (220) and is slidably connected thereto. The impact pressing assembly (3) and the combined compression assembly (4) are both mounted on the vehicle frame (10), and the impact pressing assembly (3) is used to press the sampling tube (20) into the ground, and the combined compression assembly (4) is used to push the two sampling tubes (20) to fit each other. The impact pressing assembly (3) comprises a pair of connecting plates (30), a support frame (31), a pair of impact blocks (32), a pair of telescopic rods (33), a pair of tension springs (34) and a lifting mechanism (35), one end of the connecting plate (30) is fixedly connected to the top of the sampling tube (20), a side wall at one end of the frame (10) is provided with a pair of through-going slots (100), the other end of the connecting plate (30) passes through the slots (100) and extends into the interior of the frame (10), the support frame (31) can be vertically slidably mounted on the frame (10), and the telescopic rod ( The bottom of the telescopic rod (33) is fixedly connected to the support frame (31), the top of the telescopic rod (33) is fixedly connected to one side of the impact block (32), a tension spring (34) is sleeved on the outer periphery of the telescopic rod (33), one end of the tension spring (34) is fixedly connected to the impact block (32), and the other end of the tension spring (34) is fixedly connected to the support frame (31), the bottom of the impact block (32) and the top of the connecting plate (30) are in contact with each other, and a lifting mechanism (35) is installed on the support frame (31), and the lifting mechanism (35) is used to lift the impact block (32) and then drop it.

2. A sampling device for mine repair according to claim 1, characterized in that: The lifting mechanism (35) comprises a pair of first gears (350), a pair of lifting rods (351), a plurality of rotating shafts (352) and a plurality of rotating rods (353); one end of the two first gears (350) is coaxially connected to one end of one of the pair of rotating shafts (352); the other end of the rotating shaft (352) is rotatably connected to the support frame (31); the two first gears (350) are meshed with each other; the other ends of the two first gears (350) are fixedly connected to one of the pair of rotating rods (353) at eccentric locations; the other ends of the rotating rods (353) are rotatably connected to the lifting rods (351); and the two lifting rods (351) are symmetrically distributed up and down and are respectively located at two ends of the first gears (350); When the rotating rod (353) rotates to the bottom along with the first gear (350), the top of one end of the lifting rod (351) and the bottom of the other end of the impact block (32) fit each other; When the rotating rod (353) rotates to the top along with the first gear (350), the top of one end of the lifting rod (351) and the bottom of the other end of the impact block (32) are separated from each other.

3. A sampling device for mine repair according to claim 2, characterized in that: The lifting mechanism (35) further comprises a pair of disks (354) and two groups of pulleys (355), the two disks (354) are symmetrically distributed on both sides of the two first gears (350), one end of the two disks (354) is coaxially connected to one end of another pair of rotating shafts (352), and the other ends of the two disks (354) are fixedly connected to another pair of rotating rods (353) at eccentric locations, respectively, and the two groups of pulleys (355) are respectively sleeved on the outer peripheries of the multiple rotating shafts (352) at both ends, and a group of pulleys (355) are driven by belts.

4. A sampling device for mine repair according to claim 3, characterized in that: The lifting mechanism (35) further comprises a second gear (356) and a first motor (357); one end of the first motor (357) is fixedly connected to the support frame (31); an output shaft of the first motor (357) passes through the support frame (31) and meshes with the second gear (356); and the second gear (356) meshes with one of the first gears (350).

5. A sampling device for mine restoration according to claim 1, characterized in that: The impact pressing assembly (3) further comprises a pair of slide rails (36) and a pair of electric sliders (37); the two slide rails (36) are respectively fixedly connected to the inner walls of both sides of the vehicle frame (10); the electric sliders (37) are slidably connected to the periphery of one side of the slide rails (36); and both sides of the support frame (31) are respectively fixedly connected to the two electric sliders (37).

6. A sampling device for mine restoration according to claim 1, characterized in that: The combined compression assembly (4) comprises a pair of clamping plates (40), a bidirectional threaded rod (41), a pair of support plates (42) and a second motor (43). The clamping plates (40) are symmetrically distributed on both sides of the two sampling tubes (20). The two clamping plates (40) are respectively fitted with the opposite sides of the two sampling tubes (20). The support plates (42) are fixedly connected to the inner wall of the frame (10). The bidirectional threaded rod (41) is rotatably installed between the two support plates (42). One end of the clamping plate (40) passes through the side wall of the frame (10) and is threadably connected to the outer periphery of the bidirectional threaded rod (41). The thread grooves on the two clamping plates (40) are in opposite directions. One side of the second motor (43) is fixedly connected to one of the support plates (42). The output shaft of the second motor (43) passes through the support plate (42) and is coaxially connected to the bidirectional threaded rod (41).

7. A sampling device for mine restoration according to claim 1, characterized in that: The soil separation mechanism (24) comprises a piston plate (240), a pedal (241) and a pair of return springs (242); the piston plate (240) is slidably connected to the inner wall of the sampling barrel (20); one end of the pedal (241) passes through one of the side walls of the sampling barrel (20) and is fixedly connected to the piston plate (240); one end of the return spring (242) is fixedly connected to the top of the piston plate (240); the other end of the return spring (242) is fixedly connected to the top wall of the sampling barrel (20); and a handle (26) is fixedly connected to the side wall of the sampling barrel (20).

8. A sampling device for mine restoration according to claim 1, characterized in that: The split sampling assembly (2) further comprises a limit plate (25), the limit plate (25) being fixedly connected to the inner wall of one end of the frame (10), and the top of the limit plate (25) and the bottom of the connecting plate (30) being in contact with each other.

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