A soil sample cutting, trimming and sampling tool

Abstract

The present invention belongs to the technical field of sampling tools, and specifically relates to a soil sample cutting and trimming sampling tool, comprising a tool holder, a clamping mechanism installed at both ends of the tool holder, a horizontal adjustment mechanism arranged on the outer wall of the tool holder, a transmission shaft inserted into the middle of the tool holder, an adjustment mechanism installed at the bottom end of the transmission shaft, a sampling tool mechanism installed at the adjustment mechanism, and a trimming tool mechanism installed at the sampling tool mechanism. The present invention adjusts three adjustment bolts distributed in an isosceles triangle or equilateral triangle structure to make the bubble in the level in a horizontal state, thereby adjusting the tool holder to a horizontal state, which can ensure that tilting is prevented during the sampling process, so that the cylindrical soil sample taken out can meet the needs of the experiment.

Description

Technical Field

[0001] The invention relates to the technical field of sampling cutters, in particular to a soil sample cutting and trimming sampling cutter. Background Art

[0002] In geotechnical engineering geotechnical testing and sediment physical and mechanical property testing and analysis in marine geological and geophysical surveys, soil samples must be prepared. The preparation process for in-situ soil samples primarily involves cutting, flattening, and other trimming techniques to obtain a desired shape, such as a cylindrical sample with a smooth surface and suitable size. During this cutting and trimming process, soil cutters and wire saws are frequently used. These cutters and wire saws whittle the soil sample into a column slightly larger than the diameter of the cutter ring. The cutter ring is then pressed vertically downward, cutting as it moves until the sample protrudes beyond the cutter ring. The remaining soil at each end is then trimmed and smoothed. In practice, for slightly softer soil samples, a wire saw is used to trim the sample until it protrudes beyond the cutter ring, trimming the remaining soil at each end, and finally smoothing the soil with a soil cutter. Therefore, the preparation of in-situ samples requires repeated alternating use of the wire saw and cutter ring. Currently, during soil sample trimming, the soil cutter and wire saw are often separate tools, requiring operators to frequently switch between the soil cutter and wire saw, which is inconvenient and affects work efficiency. Furthermore, if the soil cutter and wire saw need to be carried to a field work environment, not only does this increase the weight and volume of the tools, but it can also easily lead to the loss of some of the tools. A patented multifunctional sampling tool for soil sample cutting and trimming, with patent number 202210600904.2, is currently available. The patent integrates multiple functional tools into a single multifunctional tool, and allows for convenient adjustment of the angle between the tools.

[0003] However, the paper cutter and screwdriver in patent application number 202210600904.2 can also be pushed to the outside of the cavity of the knife shaft by the longitudinal telescopic rod, and then removed from the cavity with the help of external force, and replaced with other small tools with spring clip structures corresponding to the fixing holes, placed in the cavity, and fixed for use. Since the sampling tool cannot be made vertical during the sampling process, it is easy to cause the sampling tool to sample the soil sample at an angle, resulting in the soil sample failing to meet its configuration requirements in the compression test.

[0004] In order to solve the above problems, the present application proposes a soil sample cutting, trimming and sampling tool. Summary of the Invention

[0005] (1) Purpose of the invention

[0006] In order to solve the technical problems existing in the background technology, the present invention proposes a soil sample cutting and trimming sampling tool. By adjusting three adjusting bolts distributed in an isosceles triangle or equilateral triangle structure, the bubble in the level is made horizontal, thereby adjusting the tool holder to a horizontal state, which can ensure that it prevents tilting during the sampling process, so that the cylindrical soil sample taken out can meet the experimental requirements.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a soil sample cutting, trimming and sampling tool, comprising a tool holder;

[0009] A clamping mechanism installed at both ends of the tool holder;

[0010] A horizontal adjustment mechanism provided on the outer wall of the knife seat;

[0011] A transmission shaft inserted into the middle of the knife seat;

[0012] an adjusting mechanism mounted at the bottom end of the transmission shaft;

[0013] A sampling tool mechanism is installed at the adjusting mechanism, and a trimming tool mechanism is installed at the sampling tool mechanism.

[0014] Preferably, the clamping mechanism includes clamping arms movably arranged at both ends of the tool holder, strip-shaped holes provided at the top ends of the clamping arms, through which tension screws symmetrically arranged at the bottom ends of the clamping arms are passed, and locking nuts screwed to both ends of the tension screws;

[0015] One end of the strip-shaped hole passes through the top end of the clamping arm.

[0016] Preferably, a guide groove is provided at a position corresponding to the bottom edge of the tool holder end and the top end of the clamping arm, and a limiting column is fixedly connected to the inner side of the guide groove, and the limiting column is connected to the strip hole.

[0017] Preferably, the horizontal adjustment mechanism includes wing plates symmetrically welded on the outer walls of both sides of the knife seat, adjustment bolts screwed on the wing plates, and a level installed on the upper surface of the wing plates;

[0018] Specifically, three adjusting bolts are provided, and the three adjusting bolts are distributed in an isosceles triangle structure or an equilateral triangle structure.

[0019] Preferably, convex keys are symmetrically arranged at the top end of the transmission shaft, and the symmetrically arranged convex keys and the transmission shaft are an integrally formed structure.

[0020] Preferably, the adjustment mechanism includes an adjustment seat welded at the bottom end of the transmission shaft, a groove provided at the bottom of the adjustment seat, a movable seat symmetrically arranged on the inner side of the groove, guide blocks symmetrically integrally formed on the outer walls of both sides of the movable seat, guide grooves provided on the inner walls of the groove and embedded in the guide blocks, a positioning plate fixedly connected to the top of the movable seat and extending to the outside of the top end of the adjustment seat, positioning bolts symmetrically screwed on both ends of the positioning plate, positioning screw holes provided on the top of the adjustment seat and corresponding to the positioning bolts, and an internal threaded sleeve welded to the bottom of the adjustment seat;

[0021] A connecting column is welded between the movable seat and the positioning plate, and a straight hole is provided at the junction of the connecting column and the top of the adjustment seat;

[0022] The positioning screw holes are arranged in a plurality of groups at equal intervals in the longitudinal direction, and two positioning screw holes are symmetrically arranged in each group.

[0023] Preferably, the sampling tool mechanism includes a tool handle mounted on the bottom of the adjustment seat, a sampling tool head integrally formed at the bottom of the tool handle, and a threaded column head welded at the top of the tool handle;

[0024] The bottom end of the sampling cutter head is provided with a cutting edge;

[0025] The threaded column head is threadedly connected to the internal threaded sleeve.

[0026] Preferably, the trimming tool mechanism includes a trimming tool head plugged into the sampling tool head, and a mounting seat integrally formed at the root of the trimming tool head;

[0027] A plug-in hole is provided at the junction of the sampling cutter head and the trimming cutter head;

[0028] The trimming cutter head is provided with a cutting edge at one end away from the mounting seat;

[0029] The edge of the surface of the mounting seat is symmetrically provided with assembly holes, and the surface of the sampling cutter head close to the mounting seat is provided with threaded holes corresponding to the assembly holes.

[0030] Preferably, a rubber seat is bonded to the middle portion of the lower surface of the adjustment seat.

[0031] The above technical solution of the present invention has the following beneficial technical effects:

[0032] 1. The present invention adjusts three adjusting bolts distributed in an isosceles triangle or equilateral triangle structure to make the bubble in the level in a horizontal state, thereby adjusting the knife holder to a horizontal state, which can prevent tilting during the sampling process, so that the cylindrical soil sample taken out can meet the needs of the experiment.

[0033] 2. In the present invention, multiple groups of positioning screw holes correspond to the diameters of cylindrical soil samples. Positioning bolts are screwed into corresponding positioning screw holes to position the movable seat. The drive shaft is driven to rotate by a driving motor, and the drive shaft is pressed downward at the same time, so that the blade at the bottom end of the sampling cutter head abuts against the upper surface of the soil sample. By driving the sampling cutter head to rotate rapidly, soil samples of different diameters can be taken out.

[0034] 3. The present invention adjusts the position of the sampling cutter head so that the blade of the trimming cutter head abuts against the outer wall of the cylindrical soil sample, and then uses a rubber seat to press it on the top of the cylindrical soil sample. Driven by a transmission shaft, cylindrical soil samples of different diameters can be trimmed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic structural diagram of the clamping mechanism of the present invention;

[0037] Figure 3 It is a structural schematic diagram of the clamping mechanism of the present invention from another perspective;

[0038] Figure 4 It is an enlarged schematic diagram of part A of the present invention;

[0039] Figure 5 It is a schematic diagram of the movable seat structure of the present invention;

[0040] Figure 6 It is a schematic structural diagram of the adjustment seat of the present invention;

[0041] Figure 7 This is a schematic diagram of the assembly structure of the sampling tool mechanism and the dressing tool mechanism of the present invention;

[0042] Figure 8 This is a schematic diagram of the sampling tool mechanism structure of the present invention;

[0043] Figure 9 It is a schematic diagram of the structure of the dressing tool mechanism of the present invention.

[0044] Reference numerals:

[0045] 1. Tool holder; 2. Clamping arm; 3. Strip hole; 4. Limit column; 5. Tension screw; 6. Lock nut; 7. Wing plate; 8. Adjustment bolt; 9. Leveler; 10. Drive shaft; 11. Adjustment seat; 12. Groove; 13. Movable seat; 14. Guide block; 15. Guide groove; 16. Positioning plate; 17. Positioning bolt; 18. Positioning screw hole; 19. Tool handle; 20. Sampling tool head; 21. Threaded column head; 22. Internal thread sleeve; 23. Dressing tool head; 24. Mounting seat; 25. Rubber seat. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0047] like Figure 1-9 As shown, the present invention provides a soil sample cutting and trimming sampling tool, comprising a tool holder 1;

[0048] Clamping mechanisms installed at both ends of the tool holder 1;

[0049] A horizontal adjustment mechanism provided on the outer wall of the knife holder 1;

[0050] A transmission shaft 10 is inserted into the middle of the knife seat 1;

[0051] An adjustment mechanism mounted at the bottom end of the transmission shaft 10;

[0052] A sampling tool mechanism is installed at the adjusting mechanism, and a dressing tool mechanism is installed at the sampling tool mechanism.

[0053] like Figure 1 、 Figure 2 、 Figure 3 As shown, the clamping mechanism includes a clamping arm 2 movably arranged at both ends of the tool holder 1, a strip-shaped hole 3 provided at the top end of the clamping arm 2, a tension screw 5 symmetrically arranged at the bottom end of the clamping arm 2, and a locking nut 6 screwed to both ends of the tension screw 5;

[0054] One end of the strip-shaped hole 3 passes through the top end of the clamping arm 2 .

[0055] A guide groove is provided at the bottom edge of the end of the tool holder 1 corresponding to the top of the clamping arm 2, and a limit column 4 is fixedly connected to the inner side of the guide groove, and the limit column 4 is connected to the strip hole 3;

[0056] It should be noted that after the tool holder 1 is adjusted to a horizontal state, the locking nut 6 is rotated to cooperate with the rotation of the tension screw 5, so that the clamping arm 2 moves in accordance with the guide groove, and at the same time, the bottom end of the limiting column 4 is used to limit the bottom end surface of the strip hole 3, and then the two symmetrically arranged clamping arms 2 are moved toward each other to clamp the soil sample block;

[0057] One end of the strip hole 3 passes through the top end of the clamping arm 2, so that the clamping arm 2 can be disassembled, so that the cylindrical soil sample can be trimmed.

[0058] like Figure 1As shown, the horizontal adjustment mechanism includes wing plates 7 symmetrically welded on the outer walls of both sides of the tool holder 1, adjustment bolts 8 screwed on the wing plates 7, and a level 9 installed on the upper surface of the wing plates 7;

[0059] Specifically, there are three adjusting bolts 8, and the three adjusting bolts 8 are distributed in an isosceles triangle structure or an equilateral triangle structure;

[0060] It should be noted that, first, the bottom ends of the three adjusting bolts 8 are made to abut against the upper surface of the sampling protrusion, and by adjusting the three adjusting bolts 8 distributed in an isosceles triangle or equilateral triangle structure, the bubble in the level 9 is made horizontal, thereby adjusting the tool holder 1 to a horizontal state.

[0061] like Figure 1 、 Figure 6 As shown, the top of the transmission shaft 10 is symmetrically provided with convex keys, and the symmetrically provided convex keys and the transmission shaft 10 are an integrally formed structure;

[0062] It should be noted that by providing a convex key at the top of the transmission shaft 10, it is convenient to connect the transmission shaft 10 to the drive motor, and the drive motor is used to drive the transmission shaft 10 to rotate at high speed, which is conducive to rapid cutting and sampling of soil samples.

[0063] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 As shown, the adjustment mechanism includes an adjustment seat 11 welded at the bottom end of the transmission shaft 10, a groove 12 provided at the bottom of the adjustment seat 11, a movable seat 13 symmetrically arranged on the inner side of the groove 12, guide blocks 14 symmetrically integrally formed on the outer walls of both sides of the movable seat 13, a guide groove 15 provided on the inner wall of the groove 12 and embedded with the guide block 14, a positioning plate 16 fixedly connected to the top of the movable seat 13 and extending to the outside of the top end of the adjustment seat 11, positioning bolts 17 symmetrically screwed at both ends of the positioning plate 16, a positioning screw hole 18 provided on the top of the adjustment seat 11 and corresponding to the positioning bolt 17, and an internal threaded sleeve 22 welded to the bottom of the adjustment seat 11;

[0064] A connecting column is welded between the movable seat 13 and the positioning plate 16, and a straight hole is opened at the junction of the connecting column and the top of the adjustment seat 11;

[0065] There are multiple groups of positioning screw holes 18 equidistantly arranged in the longitudinal direction, and each group of positioning screw holes 18 is symmetrically provided with two. The sampling tool mechanism includes a handle 19 mounted at the bottom of the adjustment seat 11, a sampling tool head 20 integrally formed at the bottom of the handle 19, and a threaded column head 21 welded to the top of the handle 19;

[0066] The bottom end of the sampling cutter head 20 is provided with a cutting edge;

[0067] The threaded stud 21 is screwed to the internal threaded sleeve 22;

[0068] It should be noted that the position of the movable seat 13 can be adjusted by cooperating with the guide groove 15 through the movement of the guide block 14, and then the sampling cutter head 20 can be adjusted synchronously, and the multiple sets of positioning screw holes 18 correspond to the diameter of the cylindrical soil sample. The positioning bolts 17 are screwed into the corresponding positioning screw holes 18 to position the movable seat 13. The drive shaft 10 is driven to rotate by the driving motor, and the drive shaft 10 is pressed downward at the same time, so that the blade at the bottom end of the sampling cutter head 20 is in contact with the upper surface of the soil sample. By driving the sampling cutter head 20 to rotate rapidly, the cylindrical soil sample is taken out from the soil sample.

[0069] like Figure 7 、 Figure 8 、 Figure 9 As shown, the trimming tool mechanism includes a trimming tool head 23 plugged into the sampling tool head 20 and a mounting base 24 integrally formed at the root of the trimming tool head 23;

[0070] A plug-in hole is provided at the junction of the sampling blade 20 and the trimming blade 23;

[0071] The trimming head 23 is provided with a cutting edge at one end away from the mounting seat 24;

[0072] Assembly holes are symmetrically formed at the edge of the surface of the mounting seat 24 , and threaded holes are formed on the surface of the sampling blade head 20 close to the mounting seat 24 at positions corresponding to the assembly holes.

[0073] A rubber seat 25 is bonded to the middle of the lower surface of the adjustment seat 11;

[0074] It should be noted that after the cylindrical soil sample is taken out, the trimming head 23 is installed on the sampling head 20 through the plug-in hole, and the clamping arm 2 is disassembled at the same time. Then, the position of the sampling head 20 is adjusted so that the blade of the trimming head 23 is in contact with the outer wall of the cylindrical soil sample. Then, the rubber seat 25 is pressed onto the top of the cylindrical soil sample and driven by the transmission shaft 10 so that the blade of the trimming head 23 trims the outer wall of the cylindrical soil sample.

[0075] The working principle and usage process of the present invention are as follows: the clamping mechanism includes a clamping arm 2 movably arranged at both ends of the tool holder 1, a strip-shaped hole 3 provided at the top end of the clamping arm 2, a tension screw 5 symmetrically arranged at the bottom end of the clamping arm 2, and a locking nut 6 screwed to both ends of the tension screw 5;

[0076] One end of the strip-shaped hole 3 passes through the top end of the clamping arm 2 .

[0077] A guide groove is provided at the bottom edge of the end of the tool holder 1 corresponding to the top of the clamping arm 2, and a limit column 4 is fixedly connected to the inner side of the guide groove, and the limit column 4 is connected to the strip hole 3;

[0078] After the knife holder 1 is adjusted to a horizontal state, the locking nut 6 is rotated to cooperate with the rotation of the tension screw 5, so that the clamping arm 2 moves in accordance with the guide groove, and the bottom end of the limiting column 4 is used to limit the bottom end surface of the strip hole 3, and then the two symmetrically arranged clamping arms 2 are moved toward each other to clamp the soil sample block;

[0079] One end of the strip hole 3 passes through the top end of the clamping arm 2, so that the clamping arm 2 can be disassembled, so that the cylindrical soil sample can be trimmed.

[0080] The horizontal adjustment mechanism includes wing plates 7 symmetrically welded to the outer walls of both sides of the tool holder 1, adjustment bolts 8 screwed to the wing plates 7, and a level 9 installed on the upper surface of the wing plates 7;

[0081] Specifically, there are three adjusting bolts 8, and the three adjusting bolts 8 are distributed in an isosceles triangle structure or an equilateral triangle structure;

[0082] First, make the bottom ends of the three adjusting bolts 8 contact the upper surface of the sampling protrusion. By adjusting the three adjusting bolts 8 distributed in an isosceles triangle or equilateral triangle structure, the bubble in the level 9 is in a horizontal state, thereby adjusting the tool holder 1 to a horizontal state.

[0083] The top of the transmission shaft 10 is symmetrically provided with convex keys, and the symmetrically provided convex keys and the transmission shaft 10 are an integrally formed structure;

[0084] By arranging a convex key at the top end of the transmission shaft 10, it is convenient to connect the transmission shaft 10 to the drive motor, and the drive motor is used to drive the transmission shaft 10 to rotate at a high speed, which is conducive to rapid cutting and sampling of soil samples.

[0085] The adjustment mechanism includes an adjustment seat 11 welded to the bottom end of the transmission shaft 10, a groove 12 provided at the bottom of the adjustment seat 11, a movable seat 13 symmetrically arranged on the inner side of the groove 12, guide blocks 14 symmetrically integrally formed on the outer walls of both sides of the movable seat 13, a guide groove 15 provided on the inner wall of the groove 12 and embedded with the guide blocks 14, a positioning plate 16 fixedly connected to the top of the movable seat 13 and extending to the outside of the top end of the adjustment seat 11, positioning bolts 17 symmetrically screwed to both ends of the positioning plate 16, a positioning screw hole 18 provided on the top of the adjustment seat 11 and corresponding to the positioning bolt 17, and an internal threaded sleeve 22 welded to the bottom of the adjustment seat 11;

[0086] A connecting column is welded between the movable seat 13 and the positioning plate 16, and a straight hole is opened at the junction of the connecting column and the top of the adjustment seat 11;

[0087] There are multiple groups of positioning screw holes 18 equidistantly arranged in the longitudinal direction, and each group of positioning screw holes 18 is symmetrically provided with two. The sampling tool mechanism includes a handle 19 mounted at the bottom of the adjustment seat 11, a sampling tool head 20 integrally formed at the bottom of the handle 19, and a threaded column head 21 welded to the top of the handle 19;

[0088] The bottom end of the sampling cutter head 20 is provided with a cutting edge;

[0089] The threaded stud 21 is screwed to the internal threaded sleeve 22;

[0090] By moving the guide block 14 in coordination with the guide groove 15, the position of the movable seat 13 can be adjusted, and then the sampling cutter head 20 can be adjusted synchronously. The multiple groups of positioning screw holes 18 correspond to the diameter of the cylindrical soil sample. The positioning bolts 17 are screwed into the corresponding positioning screw holes 18 to position the movable seat 13. The drive shaft 10 is driven by the driving motor to rotate, and the drive shaft 10 is pressed downward at the same time, so that the blade at the bottom end of the sampling cutter head 20 is in contact with the upper surface of the soil sample. By driving the sampling cutter head 20 to rotate rapidly, the cylindrical soil sample is taken out from the soil sample.

[0091] The trimming tool mechanism includes a trimming tool head 23 plugged into the sampling tool head 20 and a mounting base 24 integrally formed at the root of the trimming tool head 23;

[0092] A plug-in hole is provided at the junction of the sampling blade 20 and the trimming blade 23;

[0093] The trimming head 23 is provided with a cutting edge at one end away from the mounting seat 24;

[0094] Assembly holes are symmetrically formed at the edge of the surface of the mounting seat 24 , and threaded holes are formed on the surface of the sampling blade head 20 close to the mounting seat 24 at positions corresponding to the assembly holes.

[0095] A rubber seat 25 is bonded to the middle of the lower surface of the adjustment seat 11;

[0096] After the cylindrical soil sample is taken out, the trimming head 23 is installed on the sampling head 20 through the plug-in hole, and the clamping arm 2 is disassembled at the same time. Then, the position of the sampling head 20 is adjusted so that the blade of the trimming head 23 abuts against the outer wall of the cylindrical soil sample. Then, the rubber seat 25 is pressed onto the top of the cylindrical soil sample and driven by the transmission shaft 10 to trim the outer wall of the cylindrical soil sample with the blade of the trimming head 23.

[0097] It should be understood that the above-described specific embodiments of the present invention are merely illustrative or illustrative of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the scope of protection of the present invention. In addition, the appended claims are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A soil sample cutting and trimming sampling tool, characterized in that: including a knife holder (1); Clamping mechanisms installed at both ends of the knife seat (1); A horizontal adjustment mechanism provided on the outer wall of the knife seat (1); A transmission shaft (10) inserted into the middle of the knife seat (1); An adjustment mechanism installed at the bottom end of the transmission shaft (10); a sampling tool mechanism installed at the adjusting mechanism and a trimming tool mechanism installed at the sampling tool mechanism; The clamping mechanism comprises a clamping arm (2) movably arranged at both ends of the knife seat (1), a strip hole (3) provided at the top end of the clamping arm (2), a tension screw (5) symmetrically arranged at the bottom end of the clamping arm (2), and a locking nut (6) screwed to both ends of the tension screw (5); one end of the strip hole (3) passes through the top end of the clamping arm (2); The horizontal adjustment mechanism comprises wing plates (7) symmetrically welded to the outer walls of both sides of the knife seat (1), adjustment bolts (8) screwed to the wing plates (7), and a leveler (9) installed on the upper surface of the wing plates (7); the adjustment bolts (8) are specifically arranged in three, and the three adjustment bolts (8) are distributed in an isosceles triangle structure; The sampling tool mechanism comprises a handle (19) mounted on the bottom of the adjustment seat (11), a sampling tool head (20) integrally formed at the bottom of the handle (19), and a threaded column head (21) welded to the top of the handle (19); a cutting edge is provided at the bottom end of the sampling tool head (20); the threaded column head (21) is screwed to the internal thread sleeve (22); The trimming tool mechanism comprises a trimming tool head (23) plugged into the sampling tool head (20), and a mounting seat (24) integrally formed at the root of the trimming tool head (23); a plug-in through hole is provided at the junction of the sampling tool head (20) and the trimming tool head (23); a blade is provided at one end of the trimming tool head (23) away from the mounting seat (24); assembly holes are symmetrically provided at the edge of the surface of the mounting seat (24), and threaded holes are provided at positions corresponding to the assembly holes on the surface of the sampling tool head (20) close to the mounting seat (24).

2. A soil sample cutting and trimming sampling tool according to claim 1, characterized in that: A guide groove is provided at the bottom edge of the end of the knife seat (1) and at the corresponding position of the top of the clamping arm (2), and a limiting column (4) is fixedly connected to the inner side of the guide groove, and the limiting column (4) is connected to the strip hole (3).

3. The soil sample cutting and trimming sampling tool according to claim 1, characterized in that: The top end of the transmission shaft (10) is symmetrically provided with convex keys, and the symmetrically provided convex keys and the transmission shaft (10) form an integrally formed structure.

4. The soil sample cutting and trimming sampling tool according to claim 1, characterized in that: The adjustment mechanism includes an adjustment seat (11) welded at the bottom end of the transmission shaft (10), a groove (12) provided at the bottom of the adjustment seat (11), a movable seat (13) symmetrically provided inside the groove (12), guide blocks (14) symmetrically integrally formed at the outer walls of both sides of the movable seat (13), a guide groove (15) provided at the inner wall of the groove (12) and engaged with the guide blocks (14), a positioning plate (16) fixedly connected to the top of the movable seat (13) and extending to the outside of the top end of the adjustment seat (11), positioning bolts (17) symmetrically screwed at both ends of the positioning plate (16), positioning screw holes (18) provided at the top of the adjustment seat (11) and corresponding to the positioning bolts (17), and an internal threaded sleeve (22) welded to the bottom of the adjustment seat (11); A connecting column is welded between the movable seat (13) and the positioning plate (16), and a straight hole is provided at the junction of the connecting column and the top end of the adjustment seat (11); The positioning screw holes (18) are arranged in multiple groups at equal intervals in the longitudinal direction, and each group of the positioning screw holes (18) has two symmetrically arranged ones.

5. The soil sample cutting, trimming and sampling tool according to claim 1, characterized in that: A rubber seat (25) is bonded to the middle portion of the lower surface of the adjustment seat (11).

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