Soil sample slitting device with fixable layer depth

Abstract

The utility model relates to the technical field of agricultural experimental equipment, in particular to a layer-depth-fixable soil sample slitting device, which comprises a sample introduction barrel, a first sliding groove, a second sliding groove, a third sliding groove and a fourth sliding groove, the sample introduction barrel is horizontally arranged and used for placing a to-be-slit soil sample, the top of the sample introduction barrel is provided with scales, and the first sliding groove is arranged along the length direction of the sample introduction barrel; the scales are arranged along the length direction of the sample injection barrel and are positioned on one side of the first sliding chute; the slitting structure comprises a first supporting rod, a knocking head and a cutting piece, the first supporting rod is vertically clamped in the first sliding groove and slidably connected in the first sliding groove, the knocking head is arranged at the top end of the first supporting rod, the diameter of the bottom of the knocking head is larger than the width of the first sliding groove, and the cutting piece is arranged at the bottom end of the first supporting rod. The bottom shape of the slice is matched with the bottom shape of the sampling cylinder, and the slice is used for slitting a soil sample in the sampling cylinder. The soil sample slitting device has the advantages of being simple in structure, easy and convenient to operate and capable of conducting layer-depth-fixable slitting on a soil sample.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural experiment equipment technical field, concretely relates to a layer deep formula soil sample cutting device. BACKGROUND

[0002] Soil profile research has application value and far-reaching significance in multiple fields. In the field of agriculture, soil is the basis for crop growth, and through soil profile research, the fertility, water content, and air permeability of different depth soil layers can be mastered. In the field of geology, soil is formed by rock weathering, and different depth soils reflect different geological processes. Soil profile research can reveal stratum structure and geological evolution. In the field of environmental science, soil profile research plays an important role in understanding soil pollution and material cycling in the ecosystem.

[0003] In soil profile research, commonly used soil sampling tools include manual soil sampling drills and emerging gasoline engine or electric soil sampling drills, each with advantages and disadvantages, and playing a role in different application scenarios. After collecting profile soil samples, the important but extremely tedious step of cutting different depth soil samples follows. This process not only requires high accuracy, but also involves multiple complex operation steps and faces many practical difficulties. Moreover, this process almost completely relies on manual operation, which is inefficient, and each time the different depth soil samples are cut, a ruler needs to be held to measure the cutting position. When cutting a small amount of soil samples, the staff can bear it, but in large-scale soil profile research, the large amount of soil sample cutting work becomes a limiting factor for advancing the research progress. Therefore, there is an urgent need for a more efficient, accurate, and simple tool and method to solve the problem of cutting different depth soil samples and improve the efficiency of soil profile research. SUMMARY

[0004] To solve the above technical problems, the utility model provides a layer deep formula soil sample cutting device, which can cut soil samples with a layer deep formula and is simple, efficient, and accurate to operate, improving the efficiency of soil profile research.

[0005] The technical scheme of the utility model is:

[0006] A layer deep formula soil sample cutting device, comprising:

[0007] A sample inlet cylinder is horizontally arranged, the sample inlet cylinder is used for placing soil samples to be cut, a first sliding groove is formed in the top of the sample inlet cylinder, the first sliding groove is formed along the length direction of the sample inlet cylinder, a scale is arranged on the top of the sample inlet cylinder, the scale is arranged along the length direction of the sample inlet cylinder, and the scale is located on one side of the first sliding groove;

[0008] The slitting structure includes a first support rod, a striking head, and a slice. The first support rod is vertically mounted in a first groove and slidably connected within the groove. The striking head is located at the top of the first support rod, and its bottom diameter is larger than the width of the first groove. The slice is located at the bottom of the first support rod, and its bottom shape matches the bottom shape of the sample inlet tube. The slice is used to slit the soil sample in the sample inlet tube.

[0009] Preferably, the top of the first cylinder is provided with two second sliding grooves, which are opened along the length direction of the first cylinder and are symmetrically arranged on both sides of the first sliding groove. A second support rod is horizontally arranged on the first support rod, and a sliding rod is provided at both ends of the second support rod. The two sliding rods are vertically engaged in the two second sliding grooves and are slidably connected in the two second sliding grooves.

[0010] Preferably, the second support rod has a positioning line along its length, the positioning line being flush with the slice, and both ends of the positioning line extending to the sidewalls of the two sliding rods.

[0011] Preferably, the openings at both ends of the second cylinder further include:

[0012] Two cover plates are respectively set at both ends of the second cylinder. One side of the cover plate is hinged to the end of the second cylinder, and the other side of the cover plate is connected to the second cylinder through a locking structure.

[0013] Preferably, it further includes: a bulldozing structure for pushing the soil sample in the second cylinder to one side of the second cylinder, the bulldozing structure comprising:

[0014] A bulldozer rod, wherein a through hole is provided on one of the cover plates, the bulldozer rod passes through the through hole, one end of the bulldozer rod is located inside the second cylinder, and the other end of the bulldozer rod is located outside the second cylinder;

[0015] A bulldozer blade is provided at one end of the bulldozer rod located inside the second cylinder, and the bottom shape of the bulldozer blade matches the internal shape of the second cylinder;

[0016] A handle is located at the end of the bulldozer rod outside the second cylinder.

[0017] Preferably, the locking structure includes:

[0018] A hook is provided on one side of the cover plate;

[0019] The locking buckle comprises a hand-held part and a hook, the hand-held part is hinged on the side wall of the second cylinder, one end of the hook is hinged with the hand-held part, and the other end of the hook is buckled with the hook.

[0020] Preferably, two placing holes are arranged on the side wall of the first cylinder, the two placing holes are arranged at one end of the two second sliding grooves respectively, and the two placing holes correspond to the positions of the two second sliding grooves, and the two placing holes are used for being inserted with the two sliding rods.

[0021] Preferably, the utility model also comprises:

[0022] Two support plates are arranged on the bottom of the second cylinder, the two support plates are arranged in a symmetrical mode, the two support plates are arranged in an inclined mode, one end of the two support plates is arranged in a symmetrical mode, and the other end of the two support plates is arranged in a symmetrical mode.

[0023] Preferably, the gap h is 10mm-30mm.

[0024] Compared with the prior art, the soil sample slitting device with the layer depth being adjustable has the advantages that:

[0025] The device has the advantages of simple structure, convenient operation, high efficiency and accuracy, the slitting structure in the device can perform slitting on the soil sample in the layer depth being adjustable mode, and the efficiency of soil profile research is improved. Specifically, the soil sample is loaded into the second cylinder, the first support rod is moved in the first sliding groove to adjust the position of the soil sample to be slitted, the position of the slice to be moved is determined according to the scale on the sample feeding cylinder, the soil sample is slitted at the required soil depth, the first support rod and the slice are segmented downward to slitt the soil sample after the position to be slitted is determined and force is applied to knock the knocking head, and the slitting on the soil sample is completed. Meanwhile, the device does not have an electric element, and has the advantages of simple structure, convenient operation and convenient outdoor operation and carrying. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the utility model Figure 1 It is a schematic diagram of a local enlarged structure of A in the utility model;

[0028] Figure 3 It is a structural schematic diagram of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the utility model Figure 3 It is a schematic diagram of a local enlarged structure of B in the utility model;

[0030] Figure 5 It is a structure schematic view of the pushing soil structure of the utility model;

[0031] Figure 6 It is a structure schematic view of the slitting structure of the utility model;

[0032] Figure 7 It is a sectional structure schematic view of the slitting structure placed on the placing hole of the utility model;

[0033] Figure 8 It is a sectional structure schematic view of the slitting structure when cutting soil downward of the utility model;

[0034] Figure 9 It is a structure schematic view when the positioning line and the scale line are aligned of the utility model.

[0035] In the drawing: 1, second cylinder;101, first sliding groove;102, second sliding groove;103, scale;104, placing hole;105, support plate;2, slitting structure;201, first support rod;202, knocking head;203, cutting piece;204, second support rod;205, sliding rod;206, positioning line;3, cover plate;301, through hole;4, hinge;5, bent hook;6, locking buckle;7, pushing soil structure;701, pushing soil rod;702, pushing soil plate;703, handle. DETAILED DESCRIPTION

[0036] The utility model will be described in detail below in combination with the drawings, but it should be understood that the protection scope of the utility model is not limited by the specific implementation.

[0037] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical scheme of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0038] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the application can be understood according to the specific circumstances.

[0039] In addition, in the description of the utility model, "multiple" refers to two or more than two. The terms "first" and "second" are only for descriptive purposes, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features with "first" and "second" can be explicitly or implicitly included one or more features.

[0040] Embodiment 1

[0041] As Figure 1 shown, the utility model provides a kind of layer deep formula soil sample slitting device, comprising: first cylinder, second cylinder 1, slitting structure 2.Sample cylinder includes first cylinder and second cylinder 1, and the cross section of first cylinder is rectangle, and first cylinder bottom is open, and first cylinder top is provided with first chute 101, and first chute 101 is opened along the length direction of first cylinder, and the top of first cylinder is provided with scale 103, to facilitate accurate slitting according to the position corresponding to scale line on scale 103, scale 103 is arranged along the length direction of first cylinder, and scale 103 is located in the side of first chute 101;The cross section of second cylinder 1 is semicircle, and the top of second cylinder 1 is open, and the bottom of first cylinder is communicated with the top of second cylinder 1, and the inside of second cylinder 1 and the inside of first cylinder form a communicating cavity, and the cavity is provided with slitting structure 2, Figures 1-9 As can be seen from the cavity, second cylinder 1 and first cylinder form an integrated structure, and first cylinder is located above second cylinder 1, and the cross section is composed of semicircle and rectangle connected, by sampling tool to sample soil sample, slitting soil sample after sampling, second cylinder 1 is used to place soil sample to be slitted, and cylindrical profile soil sample collected by soil drill is sequentially loaded into soil sample second cylinder 1 according to soil layer depth, and the whole composed of second cylinder 1 and first cylinder is placed on ground or workbench during slitting; Figure 6As shown, the cutting structure 2 includes a first support rod 201, a knocking head 202 and a cutting piece 203, the first support rod 201 is vertically clamped in the first sliding groove 101, and the first support rod 201 is slidingly connected in the first sliding groove 101, that is, the first support rod 201 can slide back and forth along the path of the first sliding groove 101, and at the same time, the diameter of the first support rod 201 is smaller than the width of the first sliding groove 101, so that the first support rod 201 can be lifted to facilitate the movement of the entire cutting structure 2, the top end of the first support rod 201 is located outside the first cylinder, and the bottom end of the first support rod 201 is located in the second cylinder 1, that is, the first sliding groove 101 is located at the top of the first cylinder (the cross section corresponds to a rectangle), which is arranged to facilitate the second cylinder 1 and the first cylinder to be placed flat, so that the top surface is a plane, and the cutting structure 2 is easy to move and cut, the knocking head 202 is arranged at the top end of the first support rod 201, the bottom surface of the knocking head 202 has a diameter greater than the width of the first sliding groove 101, and the first support rod 201 is limited, the knocking head 202 can be held to make the first support rod 201 slide in the first sliding groove 101, and at the same time, the soil sample is cut by applying force to knock the knocking head 202 during cutting, the cutting piece 203 is arranged at the bottom end of the first support rod 201, the inner diameter of the second cylinder 1 is d, and the height of the cavity (the inside of the first cylinder and the second cylinder 1) satisfies H=2d+h, wherein H is the height of the cavity, d is the inner diameter of the second cylinder 1, h is the gap, and h is 10mm-30mm, the bottom of the cutting piece 203 is matched with the shape of the inside of the second cylinder 1, and the cutting piece 203 is circular, because the soil sample in the second cylinder 1 and the cutting piece height are less than d, in order to make the cutting piece 203 not in use can be accommodated on the soil sample without touching the soil sample, so that the height of the cavity is greater than 2d, and at the same time, when the top end of the cutting piece 203 contacts the top end in the first cylinder (limit position), the bottom end of the cutting piece 203 still has a gap with the soil sample, so that the soil sample is not disturbed when the cutting piece 203 is moved, and the side wall of the cutting piece 203 on the cross section of the second cylinder 1 is matched with the inner wall corresponding to the semicircle, so that the cutting piece 203 can better cut the soil sample, and when the cutting piece 203 is in a non-working state, the cutting piece 203 is located at the upper end of the first cylinder close to the limit position, so that the bottom end of the cutting piece 203 does not touch the soil sample. When the device is used, the soil sample is loaded into the second cylinder 1, then the position of the soil sample to be cut is adjusted by moving the first support rod 201 in the first sliding groove 101, the position to be cut is determined by the scale 103, then the knocking head 202 is knocked by applying force, the first support rod 201 and the cutting piece 203 cut the soil sample downward in sections, and the cutting of the soil sample is completed.

[0042] In the above scheme, the first support rod 201 may be slightly offset when the knocking head 202 is knocked, affecting the accuracy of the slitting. In order to avoid this situation, as shown in Figure 2 two second sliding grooves 102 are formed in the top of the first cylinder, the two second sliding grooves 102 are formed along the length direction of the first cylinder, and the two second sliding grooves 102 are symmetrically arranged on the two sides of the first sliding groove 101, as shown in Figure 6 a second support rod 204 is horizontally arranged on the first support rod 201, and the two ends of the second support rod 204 are respectively provided with sliding rods 205, as shown in Figure 8 two sliding rods 205 are respectively vertically clamped in the two second sliding grooves 102, and the two sliding rods 205 are slidingly connected in the two second sliding grooves 102, and the two sliding rods 205 can respectively slide in the two second sliding grooves 102. By arranging the second support rod 204 on the first support rod 201, when the first support rod 201 is slid, the second support rod 204 is supported on the first cylinder, and the sliding rods 205 are arranged at the two ends of the first support rod 201 respectively, so that the two sliding rods 205 also slide in the two second sliding grooves 102 when the first support rod 201 slides. The two sliding rods 205 guide the first support rod 201, making the slitting structure 2 more stable, and moving the slitting structure 2 position more accurately, avoiding the first support rod 201 being slightly offset or deflected when the knocking head 202 is knocked, affecting the accuracy of the slitting.

[0043] In order to accurately perform the layer depth setting type slitting, further, the second support rod 204 is provided with a positioning line 206 in the length direction, the positioning line 206 is flush with the slice 203, that is, the positioning line 206 corresponds to the position of the soil sample cut by the slice 203, and the two ends of the positioning line 206 extend to the side walls of the two sliding rods 205. As shown in Figure 9 when the soil sample is slitted, the positioning line 206 corresponds to the position required for slitting on the scale 103 by moving the slitting structure 2, so that the slice 203 can slit the soil sample at the corresponding position, and the layer depth setting type slitting can be accurately performed. The soil sample can be slitted at the required soil depth. The two ends of the positioning line 206 extend to the side walls of the two sliding rods 205, because the first support rod 201 needs to be lifted upward when the slitting structure 2 is moved, so that the slice 203 is higher than the soil sample. At this time, the positioning line 206 extending to the side wall of the sliding rod 205 will be displayed, which is convenient for observing the position on the scale 103.

[0044] As shown in Figure 7As shown, further, two placing holes 104 are formed in the side wall of the first cylinder, and the two placing holes 104 are respectively arranged at one end of the two second sliding grooves 102 and correspond to the positions of the two second sliding grooves 102. The two placing holes 104 are used for inserting the two sliding rods 205. The two placing holes 104 are used for placing the entire slitting structure 2. In order to facilitate operation, two placing holes 104 can also be arranged at the other end of the two second sliding grooves 102. The slitting structure 2 can be placed in the two placing holes 104 before and after slitting, and the two sliding rods 205 can be inserted into the two placing holes 104. The diameter of the sliding rod 205 gradually decreases from top to bottom, and the diameter of the placing hole 104 is smaller than the diameter of the top of the sliding rod 205, so that the sliding rod 205 is only partially inserted into the placing hole 104. In this way, the sliced pieces 203 before and after slitting are higher than the soil sample, which avoids disturbing the soil sample and also avoids blocking the placement or removal of the soil sample.

[0045] As shown in Figure 2 , 4 , 7, further comprising: two support plates 105 for supporting the second cylinder 1, the two support plates 105 are symmetrically arranged at the bottom of the second cylinder 1, and the two support plates 105 are arranged obliquely and oppositely arranged at one end connected with the second cylinder 1. The end of the two support plates 105 away from the second cylinder 1 is oppositely arranged. Because the cross section corresponding to the bottom of the second cylinder 1 is semicircular, when the second cylinder 1 is placed horizontally, the second cylinder 1 may have a small amplitude of shaking. By arranging two support plates 105 at the bottom of the second cylinder 1, the two support plates 105 and the second cylinder 1 form a triangle, which can support the second cylinder 1, so that the second cylinder 1 can be stably placed, and the work of slitting the soil sample is facilitated.

[0046] Embodiment 2

[0047] As a further improvement based on embodiment 1, further, the two ends of the second cylinder 1 are open, and further comprising: two cover plates 3 respectively arranged at the two ends of the second cylinder 1. One side of the cover plate 3 is hinged to the end of the second cylinder 1 through a hinge 4, and the cover plate 3 can be rotated along the hinge 4. The other side of the cover plate 3 is connected with the second cylinder 1 through a locking structure. In this embodiment, the cover plate 3 is arranged at the two ends of the second cylinder 1, and the cover plate 3 can be opened and closed, which facilitates the placement of the soil sample in the second cylinder 1 and the removal of the slitted sample. The soil sample to be slitted is sent by the cover plate 3 at one end, and the slitted soil sample is sent by the cover plate 3 at the other end.

[0048] This embodiment provides a specific structure for a locking mechanism. Further, the locking mechanism includes: a hook 5 and a locking buckle 6. The hook 5 is located on one side of the cover plate 3, i.e., the side of the cover plate 3 opposite to the hinge 4. The locking buckle 6 includes a handle and a hook. One end of the handle is hinged to the side wall of the second cylinder 1, one end of the hook is hinged to the handle, and the other end of the hook engages with the hook 5. In this embodiment, the locking mechanism is similar to the locking mechanism of a sealed glass bottle. By rotating the handle, the hook can be pulled upwards to engage with the hook 5. The specific structure of the locking mechanism can be found in [reference needed]. Figure 4 The handle refers to the irregular sheet-like structure located on the side wall of the second cylinder 1, and the hook refers to the ring-like structure that interlocks with the hook 5.

[0049] In this embodiment, the other structures are the same as in embodiment 1, except that optimizations have been made to embodiment 1.

[0050] Example 3

[0051] As a further improvement based on Example 2, such as Figure 3 , 4 As shown, the bulldozing structure 7 is used to push the soil sample in the second cylinder 1. On one hand, it facilitates pushing the soil sample to be cut into the second cylinder 1; when the soil sample is small, it can be pushed into the second cylinder 1 and compacted in one go. On the other hand, it also facilitates pushing the cut soil sample out of the second cylinder 1. Figure 5 As shown, the bulldozing structure 7 includes: a bulldozing rod 701, a bulldozing plate 702, and a handle 703. A through hole 301 is provided on one of the cover plates 3, through which the bulldozing rod 701 passes. The through hole 301 and the bulldozing rod 701 are fitted with a clearance, allowing the bulldozing rod 701 to move along the through hole 301 within the second cylinder 1. One end of the bulldozing rod 701 is located inside the second cylinder 1, and the other end is located outside the second cylinder 1. The bulldozing plate 702 is located at the end of the bulldozing rod 701 located inside the second cylinder 1. The bottom shape of the bulldozing plate 702 matches the internal shape of the second cylinder 1. The bulldozing plate 702, like the slice 203, is circular, facilitating better contact with the bottom of the second cylinder 1 and pushing of the soil sample. The handle 703 is located at the end of the bulldozing rod 701 located outside the second cylinder 1, providing a convenient grip. When using the bulldozing structure 7, the bulldozing rod 701 is pushed into the second cylinder 1 by holding the handle 703, which causes the bulldozing plate 702 to push the soil sample. The soil sample is loaded into the second cylinder 1, and the bulldozing structure 7 is used to push the soil sample into the second cylinder 1 and fix it to one side. Then, the position of the soil sample to be cut is adjusted by moving the first support rod 201. Alternatively, the bulldozing structure 7 can be used to push out the cut soil sample.

[0052] In this embodiment, the other structures are the same as in embodiment 2, except that optimizations have been made to embodiment 2.

[0053] According to the working principle, in use, the operator first needs to pull the bulldozing structure 7 out to one side through the through hole 301 on the cover plate 3, and then places the cutting structure 2 in the two placing holes 104 above the second cylinder 1; then opens one of the cover plates 3 through the locking structure, and then sequentially loads the columnar profile soil samples collected by the soil auger into the soil sample second cylinder 1 according to the soil layer depth; then closes the opened cover plate 3 through the locking structure, and then pushes the soil sample to one side in the second cylinder 1 through the bulldozing structure 7; then sequentially slides the cutting structure 2 to the soil layer depth to be cut through the positioning line 206 on the second supporting rod 204 in combination with the scale 103 on the sidewall of the second cylinder 1, and cuts the soil sample in sections downward through the knocking head 202 by force knocking; after cutting the soil sample, places the cutting structure 2 in the placing hole 104 above the second cylinder 1; then opens one of the cover plates 3 through the locking structure, and then pushes the cut soil sample out and loads it into the sample bag in sections through the bulldozing structure 7.

[0054] The device has the advantages that the device is simple in structure, convenient, efficient and accurate to operate, the cutting structure in the device can cut the soil sample in layers and depths, and the efficiency of soil profile research is improved.

[0055] The above disclosure is only several specific embodiments of the utility model, but the utility model embodiments are not limited to this, and any changes that can be thought of by any person skilled in the art should fall within the protection scope of the utility model.

Claims

1. A depth-selectable soil sample slitting device, comprising: The utility model relates to a soil sample cutting device, including: The first chute (101) is opened along the length direction of the sample cylinder, and the scale (103) is arranged along the length direction of the sample cylinder. The first support rod (201) is vertically clamped in the first chute (101) and is slidably connected in the first chute (101), the knocking head (202) is arranged at the top end of the first support rod (201), the diameter of the bottom of the knocking head (202) is greater than the width of the first chute (101), and the cutting piece (203) is arranged at the bottom end of the first support rod (201).

2. A depth-selectable soil sample slicing device according to claim 1, wherein, The first chute (101) and the scale (103) are arranged at the top of the first cylinder, the second cylinder (1) is used for placing a soil sample to be cut, the top of the second cylinder (1) is open, the bottom of the first cylinder is communicated with the top of the second cylinder (1), the inside of the second cylinder (1) and the inside of the first cylinder form a communicating cavity, the height of the cavity satisfies H=2d+h, wherein H is the height of the cavity, d is the inner diameter of the second cylinder (1), and h is the gap amount, and when the cutting piece (203) is in a non-working state, the cutting piece (203) is located at the top end in the first cylinder.

3. A depth-selectable soil sample slicing device according to claim 2, wherein, The second chute (102) is opened along the length direction of the first cylinder, the scale (103) is located on the side, away from the first chute (101), of the second chute (102), the second support rod (204) is horizontally arranged on the first support rod (201), two sliding rods (205) are arranged at two ends of the second support rod (204) respectively, and the two sliding rods (205) are vertically clamped in the two second chutes (102) respectively and are slidably connected in the two second chutes (102) respectively.

4. A depth-selectable soil sample slicing device according to claim 3, wherein, The length direction of the second support rod (204) is provided with a positioning line (206), the positioning line (206) is flush with the cutting piece (203), and the two ends of the positioning line (206) extend to the side walls of the two sliding rods (205).

5. A depth-selectable soil sample slicing device according to claim 2, wherein, The two ends of the second cylinder (1) are open, and the soil sample cutting device further comprises: Two cover plates (3) are arranged at two ends of the second cylinder (1), one side of the cover plate (3) is hinged to the end of the second cylinder (1) through a hinge (4), and the other side of the cover plate (3) is connected to the second cylinder (1) through a locking structure.

6. A depth-selectable soil sample slicing device according to claim 5, wherein, Further comprising: A bulldozing structure (7) for pushing the soil sample in the second cylinder (1) to one side of the second cylinder (1), the bulldozing structure (7) comprising: A bulldozing rod (701), one of the cover plates (3) is provided with a through hole (301), the bulldozing rod (701) is arranged in the through hole (301), one end of the bulldozing rod (701) is located in the second cylinder (1), and the other end of the bulldozing rod (701) is located outside the second cylinder (1); A bulldozing plate (702) arranged at one end of the bulldozing rod (701) located in the second cylinder (1), the bottom shape of the bulldozing plate (702) matches the inner shape of the second cylinder (1); A handle (703) arranged at one end of the bulldozing rod (701) located outside the second cylinder (1).

7. A depth-selectable soil sample slicing device according to claim 5, wherein, The locking structure comprises: A hook (5) arranged on one side of the cover plate (3); A locking buckle (6) comprising a hand-held part and a hook, the hand-held part is hinged to the side wall of the second cylinder (1), one end of the hook is hinged to the hand-held part, and the other end of the hook is buckled with the hook (5).

8. A depth-selectable soil sample slicing device according to claim 3, wherein Two placing holes (104) are arranged on the side wall of the first cylinder, two placing holes (104) are arranged at one end of two second sliding grooves (102), and two placing holes (104) correspond to the positions of two second sliding grooves (102), and two placing holes (104) are used for inserting two sliding rods (205).

9. A depth-selectable soil sample slicing device according to claim 2, wherein, Further comprising: Two support plates (105) for supporting the second cylinder (1), two support plates (105) are symmetrically arranged at the bottom of the second cylinder (1), two support plates (105) are arranged obliquely, and two support plates (105) are arranged opposite to one end connected to the second cylinder (1), and two support plates (105) are arranged opposite to one end away from the second cylinder (1).

10. A depth-selectable soil sample slicing device according to claim 2, wherein The gap amount h is 10mm-30mm.

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