Soil sampling device

Abstract

The present invention relates to the technical field of soil detection sampling equipment, and discloses a soil sampling device, comprising a hammer-type sampling cannula unit and a blanking support plate unit fixedly installed at the lower end of the hammer-type sampling cannula unit, wherein a main column rod is plugged into and installed in a positioning sleeve, and a plug-in column welded on the main column rod extends into a box cover shell provided with a lever frame component. When soil is sampled, a supporting base plate component is placed on the ground for support, and a driving motor drives the lever frame component to rotate. The lever columns provided at both ends of the lever frame component lift the plug-in column upward during rotation, so that the main column rod moves upward. When the lever column rotates past the plug-in column position and no longer contacts the plug-in column, the main column rod is hammered to the soil surface due to the dead weight of the main column rod and the action of a reset spring A to chisel the soil downward. The driving motor drives the lever frame component to continuously rotate to realize the reciprocating hammering and chiseling operation of the main column rod, thereby facilitating the sampling operation of the surface hardened soil.

Description

Technical Field

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

[0002] Soil environmental monitoring refers to determining the environmental quality (degree of pollution) and its changing trends by measuring the representative values ​​of factors affecting soil environmental quality. Soil monitoring usually refers to soil environmental monitoring, which generally includes technical contents such as sampling points, sample preparation, analysis methods, result characterization, data statistics and quality evaluation. A sampling device is required when sampling the soil.

[0003] The patent document with publication number CN109100171A discloses a portable soil sampling device for soil testing, including a positioning shell, which is composed of two half shells. A circular hole is opened on the positioning shell, and pads are respectively provided at both ends of the positioning shell. A number of limiting protrusions are provided at both ends of the positioning shell on the side away from the pads. A first Z-shaped rod is provided in the circular hole, and a sampling mechanism is provided at one end of the first Z-shaped rod located in the positioning shell. The sampling mechanism includes a number of arc-shaped grippers, which are movably connected to the first Z-shaped rod through a movable shaft, and a roller groove is fixed on the inner wall of the arc-shaped gripper.

[0004] When the soil sampling device is sampling the soil, the first Z-shaped rod and the second Z-shaped rod are rotated simultaneously by rotating the sleeve, and the lower jaw exerts force to enable the sampling mechanism to rotate below the ground to sample the soil. However, in actual use, due to the surface of the soil, it is difficult to rotate the sampling mechanism below the ground by manual rotation. After the arc-shaped gripper is inserted into the hole of the drill bit, due to the fixed diameter of the hole and the hard soil, it is difficult to rotate the rotating handle to make the arc-shaped grippers move away from each other by a certain distance, resulting in poor gripping effect on the sampled soil. Summary of the Invention

[0005] The object of the present invention is to provide a soil sampling device, comprising a hammer-type sampling cannula unit and a material discharge support plate unit fixedly installed at the lower end of the hammer-type sampling cannula unit, which can sample surface-hardened soil and conveniently bring out the soil for discharging the sampled soil, thereby solving the problems in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a soil sampling device, comprising a hammer sampling cannula unit and a blanking support plate unit fixedly mounted at the lower end of the hammer sampling cannula unit, the hammer sampling cannula unit being provided with a plug-in sampling tube fitting and a reciprocating hammer driving member fixedly mounted on one side of the plug-in sampling tube fitting, the plug-in sampling tube fitting comprising a positioning outer tube fitting and a sampling cannula fitting movably plugged into the positioning outer tube fitting, the reciprocating hammer driving member comprising a lever driving box seat fixedly mounted on the positioning outer tube fitting;

[0007] The blanking support plate unit includes a supporting base plate installed at the lower end of the positioning outer tube and a positioning sleeve fixedly welded to the upper end surface of the supporting base plate for connecting the lower end of the positioning outer tube, and a baffle is radially arranged on the positioning sleeve.

[0008] Furthermore, the positioning outer pipe fitting includes a positioning support tube and a connecting notch block welded on the circumferential surface of the positioning support tube, a through-hole is opened on the circumferential surface of the positioning support tube, and the through-hole is connected to the notch of the connecting notch block; a retaining ring A is welded on the inner wall of the positioning support tube, and the retaining ring A is arranged below the through-hole.

[0009] Furthermore, the sampling cannula assembly includes a main column rod movably inserted into the positioning support tube and a counterweight end block fixedly welded to the upper end of the main column rod. The main column rod is radially welded with a plug-in column. A retaining ring B is fixedly welded to the main column rod, and the retaining ring B is located below the plug-in column. A reset spring A is mounted on the plug-in column. The lower end of the reset spring A is welded to the retaining ring B, and the upper end is welded to the retaining ring A. The lower end of the main column rod is provided with a sampling hole.

[0010] The diameter of the main column is smaller than the inner diameter of the retaining ring A, and the diameter of the plug-in column is smaller than the width of the through-hole.

[0011] Furthermore, the shift rod driving box seat includes a box cover shell fixedly mounted on the connecting slot block and a driving motor fixedly mounted on the box cover shell, the output end of the driving motor extends into the box cover shell, and the shift rod frame is fixedly mounted on the output end of the driving motor. A plug hole is provided on the upper end surface of the box cover shell, and a push rod component is also installed on the upper end surface of the box cover shell, and the lower end of the push rod component is inserted into the box cover shell through the plug hole.

[0012] Furthermore, the shifting rod frame comprises a rod frame fixedly sleeved on the output end of the driving motor and welding end plates fixedly welded to both ends of the rod frame, a shifting post is welded on the welding end plates, and a contact sleeve is sleeved on the shifting post.

[0013] Furthermore, the top rod member includes a connecting post movably inserted into the plug hole and a top post end member welded to the upper end of the connecting post, and a concave arc surface block is welded to the lower end of the connecting post, and the concave arc surface block is arranged in the box cover shell;

[0014] A retaining ring C is welded on the connecting post, and a rubber open sleeve is installed on the connecting post.

[0015] Furthermore, the top column end piece includes a socket column block welded to the upper end of the connecting column and a top column movably inserted into the hole of the socket column block. One end of the top column is welded with an inwardly concave arc-shaped fitting head, and a fixing bolt for fixing the top column is threadedly installed at the upper end of the socket column block.

[0016] Furthermore, the supporting base plate member includes a seat plate and supporting foot plates hingedly installed at both ends of the lower end surface of the seat plate. A storage slot is opened on the lower end surface of the seat plate, and two groups of storage slots are respectively arranged on both sides of the middle opening of the seat plate, and a magnet piece A is fixed in the storage slot, and a magnet piece B is installed on the supporting foot plate.

[0017] Furthermore, the positioning sleeve is fixedly welded to the upper end surface of the seat plate and is communicated with the middle opening of the seat plate. A slot opening is opened on the positioning sleeve.

[0018] Furthermore, the baffle member includes a reinforcement block welded in the radial direction of the positioning sleeve and a plug-in baffle plugged into the reinforcement block, and a limit pin member is installed on the upper end surface of the reinforcement block;

[0019] The reinforcing block is provided with a connecting slot for communicating with the slot port, and the plug-in baffle is movably plugged into the connecting slot;

[0020] The plug-in baffle includes a baffle end and a limit push-pull end fixedly arranged at one end of the baffle end, an inner groove is provided at the other end of the baffle end, and a limit plug hole is provided on the upper end surface of the baffle end;

[0021] The limit pin includes a pin column movably installed on the upper end surface of the reinforcement block and a lifting head welded to the upper end of the pin column, and a reset spring B is installed on the pin column. The lower end of the reset spring B is welded to the reinforcement block, and the upper end is welded to the lifting head, and the lower end of the pin column is inserted into the connecting slot.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. A soil sampling device provided by the present invention has a main column rod inserted and installed in a positioning sleeve, and the plug-in column welded on the main column rod extends into a box cover shell provided with a push rod frame. When sampling the soil, the supporting base plate is placed on the ground for support, and the driving motor drives the push rod frame to rotate. The push rods provided at both ends of the push rod frame member lift the plug-in column upward when rotating, so that the main column rod moves upward. When the push rod column rotates past the plug-in column position and no longer contacts the plug-in column, the main column rod is hammered to the soil surface due to the dead weight of the main column rod and the action of the reset spring A to chisel the soil. The driving motor drives the push rod frame member to rotate continuously to realize the reciprocating hammering and chiseling operation of the main column rod, which is convenient for sampling the surface hardened soil.

[0024] 2. A soil sampling device provided by the present invention welds a positioning sleeve equipped with a baffle member to a supporting base member. When soil sampling is completed, the main column is lifted up and the plug-in baffle inserted in the reinforcement block is inserted into the positioning sleeve to achieve the blocking of the lower end of the main column by the plug-in baffle so that it will no longer penetrate the supporting base member. The supporting foot plate received in the receiving slot of the lower end surface of the seat plate is opened to lift the seat plate to support it, so that there is a distance between the seat plate and the ground, which is convenient for unloading and taking soil. At the same time, the connecting plug column with a concave arc block at the lower end is extended into the box cover through the plug hole. When the main column is lifted up and unloading is required, the rubber opening on the connecting plug column is sleeved The sleeve is removed, and then the top column set at the upper end of the connecting column is moved to the lower end of the counterweight end block, and the driving motor drives the lever frame to rotate, so that the levers set at both ends of the lever frame push the concave arc surface fitting head upward when rotating, thereby realizing the top column lifting operation of the counterweight end block. When the lever rotates past the concave arc surface fitting head, it no longer pushes and supports the concave arc surface fitting head upward. Under the action of the dead weight of the main column rod and the reset spring A, the main column rod falls and hammers on the plug-in baffle. Due to inertia sampling, the soil retained in the sampling socket slides out of the sampling socket to realize the unloading operation of the sampled soil, which is convenient for unloading and does not require manual operation, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the plug-in sampling pipe structure of the present invention;

[0027] Figure 3 This is a schematic structural diagram of the sampling cannula of the present invention;

[0028] Figure 4 It is a schematic structural diagram of the reciprocating hammer driving member of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the lever frame of the present invention;

[0030] Figure 6 A cross-sectional view of a hammer-type sampling cannula unit according to the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the top rod of the present invention;

[0032] Figure 8 This is a diagram showing the supporting foot plate of the present invention when it is unfolded and unloading;

[0033] Figure 9 This is a schematic structural diagram of the blanking support plate unit of the present invention;

[0034] Figure 10 Schematic diagram of the baffle structure of the present invention;

[0035] Figure 11 It is a schematic structural diagram of the supporting substrate component of the present invention.

[0036] In the figure: 1. Hammer sampling cannula unit; 11. Plug sampling tube fitting; 12. Reciprocating hammer driving member; 2. Blanking support plate unit; 21. Support base plate; 211. Base plate; 2111. Storage slot; 2112. Magnet A; 212. Support foot plate; 2121. Magnet B; 22. Positioning sleeve; 221. Slot opening; 23. Baffle member; 231. Reinforcement block; 2311. Connecting slot; 232. Plug baffle; 2321. Baffle end; 201. Inner groove; 202. Limiting socket; 2322. Limiting push-pull end; 233. Limiting pin; 204. Pin; 205. Pulling head; 206. Return spring B; 3. Positioning outer tube; 31. Positioning support tube; 311. Retaining ring A; 32. Connecting notch block; 33. Through-hole; 4. Sampling insert; 41. Main column; 42. Counterweight end block; 43. Connecting column; 44. Retaining ring B; 45. Reset spring A; 46. Sampling socket; 5. Push rod drive box seat; 51. Box cover; 511. Connecting hole; 52. Drive motor; 53. Push rod frame; 531. Rod frame; 532. Welding end plate; 533. Push column; 534. Contact sleeve; 6. Push rod; 61. Connecting plug column; 611. Retaining ring C; 612. Rubber opening sleeve; 62. Push column end piece; 621. Socket column block; 622. Push column; 623. Concave arc fitting head; 624. Fixing bolt; 63. Concave arc block. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figure 1 -8. A soil sampling device comprises a hammer sampling cannula unit 1 and a blanking support plate unit 2 fixedly mounted on the lower end of the hammer sampling cannula unit 1, the hammer sampling cannula unit 1 is provided with a plug-in sampling pipe fitting 11 and a reciprocating hammer driving member 12 fixedly mounted on one side of the plug-in sampling pipe fitting 11, the plug-in sampling pipe fitting 11 comprises a positioning outer pipe fitting 3 and a sampling cannula fitting 4 movably plugged into the positioning outer pipe fitting 3, the reciprocating hammer driving member 12 comprises a lever driving box seat member 5 fixedly mounted on the positioning outer pipe fitting 3.

[0039] The blanking support plate unit 2 includes a supporting base plate member 21 installed at the lower end of the positioning outer tube member 3 and a positioning sleeve 22 fixedly welded to the upper end surface of the supporting base plate member 21 for connecting the lower end of the positioning outer tube member 3, and a baffle member 23 is radially penetrated through the positioning sleeve 22.

[0040] The positioning outer tube 3 includes a positioning support tube 31 and a connecting notch block 32 welded on the circumferential surface of the positioning support tube 31. A through-hole 33 is opened on the circumferential surface of the positioning support tube 31, and the through-hole 33 is connected to the notch of the connecting notch block 32; a retaining ring A311 is welded on the inner wall of the positioning support tube 31, and the retaining ring A311 is arranged below the through-hole 33.

[0041] See also Figure 2 -3. The sampling insert 4 includes a main column rod 41 movably inserted in the positioning support tube 31 and a counterweight end block 42 fixedly welded to the upper end of the main column rod 41. The main column rod 41 is radially welded with a plug-in column 43, and a retaining ring B44 is fixedly welded on the main column rod 41, and the retaining ring B44 is located below the plug-in column 43, and a reset spring A45 is installed on the plug-in column 43. The lower end of the reset spring A45 is welded to the retaining ring B44, and the upper end is welded to the retaining ring A311, and a sampling socket 46 is provided at the lower end of the main column rod 41. The diameter of the main column rod 41 is smaller than the inner ring diameter of the retaining ring A311, and the diameter of the plug-in column 43 is smaller than the width of the through-hole 33.

[0042] See also Figure 4 -7, the shift rod drive box seat 5 includes a box cover shell 51 fixedly mounted on the connecting notch block 32 and a drive motor 52 fixedly mounted on the box cover shell 51, the output end of the drive motor 52 extends into the box cover shell 51, and a shift rod frame 53 is fixedly mounted on the output end of the drive motor 52. A plug hole 511 is provided on the upper end surface of the box cover shell 51, and a push rod member 6 is also installed on the upper end surface of the box cover shell 51, and the lower end of the push rod member 6 is inserted into the box cover shell 51 through the plug hole 511.

[0043] The shifting rod frame 53 includes a rod frame 531 fixedly sleeved on the output end of the driving motor 52 and a welding end plate 532 fixedly welded to both ends of the rod frame 531. A shifting post 533 is welded on the welding end plate 532, and a contact sleeve 534 is sleeved on the shifting post 533. The main column rod 41 is inserted and installed in the positioning sleeve 22, and the plug-in column 43 welded on the main column rod 41 extends into the box cover 51 provided with the lever frame 53. When sampling the soil, the supporting base plate component 21 is placed on the ground for support, and the driving motor 52 drives the lever frame 53 to rotate. The lever columns 533 provided at both ends of the lever frame 53 lift the plug-in column 43 upward during rotation, so that the main column rod 41 moves upward. When the lever column 533 rotates past the position of the plug-in column 43 and no longer contacts the plug-in column 43, due to the dead weight of the main column rod 41 and the action of the return spring A45, the main column rod 41 hammers to the soil surface to chisel the soil. The driving motor 52 drives the lever frame 53 to rotate continuously to realize the reciprocating hammering and chiseling operation of the main column rod 41, which is convenient for sampling the surface hardened soil.

[0044] The top rod component 6 includes a connecting column 61 movably inserted in the plug hole 511 and a top column end component 62 welded to the upper end of the connecting column 61, a concave arc surface block 63 is welded at the lower end of the connecting column 61, and the concave arc surface block 63 is arranged in the box cover shell 51, a retaining ring C611 is welded on the connecting column 61, and a rubber opening sleeve 612 is installed on the connecting column 61, the top column end component 62 includes a socket column block 621 welded to the upper end of the connecting column 61 and a top column 622 movably inserted in the hole of the socket column block 621, one end of the top column 622 is welded with a concave arc surface fitting head 623, and a fixing bolt 624 for fixing the top column 622 is threadedly installed on the upper end of the socket column block 621.

[0045] See also Figure 8 -11, the supporting base plate member 21 includes a seat plate 211 and support foot plates 212 hingedly installed at both ends of the lower end surface of the seat plate 211, a storage slot 2111 is opened on the lower end surface of the seat plate 211, and two groups of storage slots 2111 are respectively arranged on both sides of the middle opening of the seat plate 211, and a magnet piece A2112 is fixed in the storage slot 2111, and a magnet piece B2121 is installed on the support foot plate 212.

[0046] The positioning sleeve 22 is fixedly welded to the upper end surface of the seat plate 211 and communicates with the central opening of the seat plate 211 . A slot opening 221 is formed on the upper surface of the positioning sleeve 22 .

[0047] The baffle member 23 includes a reinforcement block 231 welded to the radial direction of the positioning sleeve 22 and a plug-in baffle 232 plugged into the reinforcement block 231, and a limit pin 233 is installed on the upper end surface of the reinforcement block 231. The reinforcement block 231 is provided with a connecting slot 2311 for connecting to the slot port 221. The plug-in baffle 232 is movably plugged into the connecting slot 2311. The plug-in baffle 232 includes a baffle end 2321 and a limiting push-pull end 2322 fixedly set at one end of the baffle end 2321, and an inner groove 201 is provided at the other end of the baffle end 2321, and a limiting socket 202 is provided on the upper end surface of the baffle end 2321. The limit pin 233 includes a baffle end 2321 and a limiting push-pull end 2322 fixedly set at one end of the baffle end 2321. The structure includes a pin 204 movably plugged into the upper end surface of the reinforcing block 231 and a lifting head 205 welded to the upper end of the pin 204, and a reset spring B206 is installed on the pin 204. The lower end of the reset spring B206 is welded to the reinforcing block 231, and the upper end is welded to the lifting head 205. The lower end of the pin 204 is inserted into the connecting slot 2311, and the positioning sleeve 22 with the baffle member 23 installed is welded to the supporting base member 21. When the soil sampling is completed, the main column 41 is lifted up and the plug-in baffle 232 plugged into the reinforcing block 231 is inserted into the positioning sleeve 22 to achieve the blocking of the lower end of the main column 41 by the plug-in baffle 232 So that it will no longer penetrate the supporting base plate 21, the supporting foot plate 212 stored in the storage slot 2111 of the lower end surface of the seat plate 211 is opened to lift and support the seat plate 211, so that there is a distance between the seat plate 211 and the ground, which is convenient for unloading and taking soil. At the same time, the connecting column 61 with a concave arc block 63 at the lower end is extended into the box cover 51 through the plug hole 511. When the main column 41 is lifted and needs to be unloaded, the rubber opening sleeve 612 sleeved on the connecting column 61 is removed, and then the top column 622 set at the upper end of the connecting column 61 is moved to the lower end of the counterweight end block 42, and the driving motor 52 drives the lever frame 53 to rotate. The movement causes the lever posts 533 provided at both ends of the lever frame 53 to push the concave arc-surface fitting head 623 upward when rotating, thereby realizing the lifting operation of the top post 622 on the counterweight end block 42. When the lever post 533 rotates and passes the concave arc-surface fitting head 623, it no longer pushes and supports the concave arc-surface fitting head 623 upward. Under the action of the deadweight of the main column 41 and the return spring A45, the main column 41 falls and hammers on the plug-in baffle 232. Due to inertia sampling, the soil remaining in the sampling socket 46 slides out of the sampling socket 46 to realize the unloading operation of the sampled soil, which is convenient for unloading and does not require manual operation, making it more convenient.

[0048] Working principle: When sampling the soil, the supporting base plate 21 is placed on the ground for support, and the driving motor 52 drives the lever frame 53 to rotate. The lever posts 533 set at both ends of the lever frame 53 lift the plug-in post 43 upward when rotating, so that the main column 41 moves up. When the lever post 533 rotates past the plug-in post 43 and no longer contacts the plug-in post 43, the main column 41 hammers into the soil surface due to the weight of the main column 41 and the action of the return spring A45 to chisel the soil. The driving motor 52 drives the lever frame 53 to rotate continuously to realize the reciprocating hammering and chiseling operation of the main column 41. , sampling operation is carried out on the surface hardened soil. When the main column rod 41 reciprocates and hammers the soil, the sampling socket 46 is gradually inserted into the surface hardened soil, and in the process of chiseling, the lower layer of soil will push up the upper layer of soil so that the soil is fully filled in the sampling socket 46. Due to the viscosity of the soil, it will stick to the inner wall of the sampling socket 46 and will not fall out of the sampling socket 46 when the main column rod 41 moves upward. When the soil sampling is completed, the main column rod 41 is lifted up and the plug-in baffle 232 inserted in the reinforcement block 231 is inserted into the positioning sleeve 22 to realize the grid of the lower end of the main column rod 41 by the plug-in baffle 232. The support leg 212 received in the receiving slot 2111 at the lower end of the seat plate 211 is opened to lift the seat plate 211 so that there is a distance between the seat plate 211 and the ground, which is convenient for unloading and taking soil. At the same time, the connecting column 61 with a concave arc block 63 at the lower end is extended into the box cover 51 through the plug hole 511. When the main column 41 is lifted and unloading is required, the rubber opening sleeve 612 on the connecting column 61 is removed, and then the top column 622 provided at the upper end of the connecting column 61 is moved to the lower end of the counterweight end block 42. 52 drives the lever frame 53 to rotate, so that the lever posts 533 set at both ends of the lever frame 53 push the concave arc surface fitting head 623 upward when rotating, thereby realizing the lifting operation of the top column 622 on the counterweight end block 42. When the lever post 533 rotates and passes the concave arc surface fitting head 623, it no longer pushes and supports the concave arc surface fitting head 623 upward. Under the action of the dead weight of the main column 41 and the return spring A45, the main column 41 falls and hammers on the plug-in baffle 232. Due to inertia sampling, the soil remaining in the sampling socket 46 slides out of the sampling socket 46 to realize the unloading operation of the sampled soil.

Claims

1. A soil sampling device, comprising a hammer sampling cannula unit (1) and a blanking support plate unit (2) fixedly mounted at the lower end of the hammer sampling cannula unit (1), characterized in that: The hammer-type sampling cannula unit (1) is provided with a plug-in sampling tube member (11) and a reciprocating hammer driving member (12) fixedly mounted on one side of the plug-in sampling tube member (11); the plug-in sampling tube member (11) includes a positioning outer tube member (3) and a sampling cannula member (4) movably plugged into the positioning outer tube member (3); and the reciprocating hammer driving member (12) includes a lever driving box seat member (5) fixedly mounted on the positioning outer tube member (3); The blanking support plate unit (2) comprises a supporting base plate (21) mounted on the lower end of the positioning outer tube (3) and a positioning sleeve (22) fixedly welded to the upper end surface of the supporting base plate (21) and used for connecting the lower end of the positioning outer tube (3), and a baffle (23) is radially penetrated through the positioning sleeve (22); The positioning outer tube (3) comprises a positioning support tube (31) and a connecting notch block (32) welded to the circumferential surface of the positioning support tube (31); a through-hole (33) is provided on the circumferential surface of the positioning support tube (31), and the through-hole (33) is communicated with the notch of the connecting notch block (32); A retaining ring A (311) is welded on the inner wall of the positioning support tube (31), and the retaining ring A (311) is arranged below the through-hole (33); The sampling insertion tube member (4) comprises a main column (41) movably plugged into a positioning support tube (31) and a counterweight end block (42) fixedly welded to the upper end of the main column (41); a plug-in column (43) is radially welded to the main column (41); a retaining ring B (44) is fixedly welded to the main column (41), and the retaining ring B (44) is located below the plug-in column (43); a reset spring A (45) is mounted on the plug-in column (43); the lower end of the reset spring A (45) is welded to the retaining ring B (44), and the upper end is welded to the retaining ring A (311); and a sampling socket (46) is provided at the lower end of the main column (41); The diameter of the main column (41) is smaller than the inner diameter of the retaining ring A (311), and the diameter of the plug-in column (43) is smaller than the width of the through opening (33); The shifting rod driving box seat (5) comprises a box cover shell (51) fixedly mounted on the connecting notch block (32) and a driving motor (52) fixedly mounted on the box cover shell (51), the output end of the driving motor (52) extends into the box cover shell (51), a shifting rod frame (53) is fixedly mounted on the output end of the driving motor (52), a plug hole (511) is provided on the upper end surface of the box cover shell (51), and a push rod (6) is also mounted on the upper end surface of the box cover shell (51), and the lower end of the push rod (6) is inserted into the box cover shell (51) through the plug hole (511); The shifting rod frame (53) comprises a rod frame (531) fixedly sleeved on the output end of the driving motor (52) and a welding end plate (532) fixedly welded to both ends of the rod frame (531); a shifting post (533) is welded on the welding end plate (532), and a contact sleeve (534) is sleeved on the shifting post (533); The top rod (6) includes a connecting column (61) movably inserted into the insertion hole (511) and a top column end piece (62) welded to the upper end of the connecting column (61); a concave arc surface block (63) is welded to the lower end of the connecting column (61), and the concave arc surface block (63) is arranged in the box cover shell (51); A retaining ring C (611) is welded on the connecting plug post (61), and a rubber opening sleeve (612) is installed on the connecting plug post (61).

2. A soil sampling device according to claim 1, characterized in that: The top column end piece (62) comprises a socket column block (621) welded to the upper end of the connecting column (61) and a top column (622) movably plugged into the hole of the socket column block (621); one end of the top column (622) is welded with an inner concave arc surface fitting head (623), and a fixing bolt (624) for fixing the top column (622) is threadedly installed on the upper end of the socket column block (621).

3. A soil sampling device according to claim 1, characterized in that: The supporting base plate member (21) comprises a seat plate (211) and supporting foot plates (212) hingedly mounted on both ends of the lower end surface of the seat plate (211); a receiving slot (2111) is provided on the lower end surface of the seat plate (211), and two groups of receiving slots (2111) are respectively arranged on both sides of the central opening of the seat plate (211); a magnet piece A (2112) is fixedly arranged in the receiving slot (2111), and a magnet piece B (2121) is mounted on the supporting foot plates (212).

4. A soil sampling device according to claim 3, characterized in that: The positioning sleeve (22) is fixedly welded to the upper end surface of the seat plate (211) and is communicated with the middle opening of the seat plate (211). A slot opening (221) is provided on the positioning sleeve (22).

5. A soil sampling device according to claim 4, characterized in that: The baffle member (23) includes a reinforcement block (231) welded to the radial direction of the positioning sleeve (22) and a plug-in baffle (232) plugged into the reinforcement block (231), and a limiting pin member (233) is installed on the upper end surface of the reinforcement block (231); The reinforcing block (231) is provided with a connecting slot (2311) for communicating with the slot opening (221), and the plug-in baffle (232) is movably plugged into the connecting slot (2311); The plug-in baffle (232) comprises a baffle end (2321) and a position-limiting push-pull end (2322) fixedly arranged at one end of the baffle end (2321), an inner groove (201) is provided at the other end of the baffle end (2321), and a position-limiting plug hole (202) is provided on the upper end surface of the baffle end (2321); The limiting pin (233) includes a pin (204) movably plugged into the upper end surface of the reinforcing block (231) and a pulling head (205) welded to the upper end of the pin (204), and a reset spring B (206) is mounted on the pin (204). The lower end of the reset spring B (206) is welded to the reinforcing block (231), and the upper end is welded to the pulling head (205), and the lower end of the pin (204) is inserted into the connecting slot (2311).

Images