Soil detection sampling device for planting crops

Abstract

The utility model belongs to the field of agricultural detection, particularly relates to a sampling device for soil detection for planting crops, and provides the following scheme aiming at the problems that the bottom of the device is inconvenient to seal and the sampling device is inconvenient to take out from soil in the existing sampling process. Which comprises a sampling cylinder, a spiral soil sampling assembly, a cutting rack and a positioning sleeve, and is characterized in that the sampling cylinder and the spiral soil sampling assembly are arranged, and a spiral blade of the spiral soil sampling assembly screws a soil sample into the sampling cylinder, so that the soil sample is supported, and the soil sample in the cylinder is fixed; when the sampling cylinder is lifted upwards, the collected soil sample can be taken out along with the sampling cylinder; the cutting rack is used for cutting the soil in a circular ring shape, so that a certain gap is reserved between the sampling barrel and the peripheral soil, and the sampling barrel can be easily lifted up; the positioning sleeve is arranged, so that the sampling barrel can vertically move downwards under the limiting action of the positioning sleeve, and the influence on soil around the sampling part is not easily caused.

Description

Technical Field

[0001] The utility model relates to a sampling device, in particular to a sampling device for soil detection for planting crops, belonging to the technical field of agricultural detection. Background Art

[0002] In the process of crop planting, in order to increase the yield of crops, it is necessary to test the soil where crops are planted. For example, when planting crops such as oats or potatoes, it is necessary to try to choose soil with sufficient humus so that oat seeds or potato seedlings have sufficient nutrients to absorb, improve the germination rate of oat seeds or ensure the healthy growth of potato seedlings; secondly, the pH value of the soil must be controlled, and the pH value of the soil should not be too high, otherwise the growth of oat seeds or potato seedlings will be seriously hindered; in addition, the content of trace elements in the soil is also a key factor affecting the growth of oat seeds or potato seedlings. Therefore, it is necessary to conduct corresponding sampling and testing of the planting soil before planting. For soil testing, testers need to collect a certain amount of soil samples through special collection devices.

[0003] In the prior art, a soil sampling device disclosed in announcement number CN212082895U includes a sampling tube, a shielding member and a pulling member. The sampling tube is provided with a sampling cavity with upper and lower ends opened. The sampling tube can be inserted into a position to be sampled to squeeze the soil into the sampling cavity. The shielding member is movably arranged on the sampling tube and is used to open and close the lower end opening of the sampling tube. One end of the pulling member is connected to the shielding member, and the other end protrudes from the upper end of the sampling tube. The pulling member can drive the shielding member to move to close the lower end opening of the sampling tube. However, in actual use, although the existing device can prevent the collected soil sample from falling by closing the lower end of the sampling tube, when closing, a large force is used to pull the shielding piece to move. For deeper soil, the sampling device needs to be deeply inserted into the soil. At the same time, the deeper soil is also harder, and it is more laborious to pull the shielding piece. Therefore, the existing device is often inconvenient in actual use. Secondly, since the sampling device needs to be deeply inserted into the soil when sampling the soil, and then the device is pulled out, the outer wall of the existing device is tightly attached to the soil. On the one hand, a large force is required when pulling it out, and on the other hand, it is easy to affect the soil around the sampling site, thereby causing certain inconveniences to the actual operation. Summary of the invention

[0004] The utility model provides a soil detection sampling device for planting crops to solve the technical problems that it is inconvenient to seal the bottom of the device and to take the sampling device out of the soil during the sampling process.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a sampling device for soil detection for planting crops, comprising a sampling tube and a spiral soil taking component, the spiral soil taking component is movably connected in the sampling tube, a cutting rack is fixedly connected to the outer wall of the bottom end of the sampling tube, and a positioning sleeve is movably sleeved on the tube body of the sampling tube;

[0006] The spiral soil sampling assembly includes a center rod and a spiral blade. The spiral blade is fixedly connected to the rod body of the center rod. The upper end of the center rod is coaxially connected to a threaded rotating rod. The threaded rotating rod penetrates the upper end surface of the sampling tube, and the top of the threaded rotating rod is fixedly connected to a rotating handle seat, and movable handles are movably connected to both sides of the rotating handle seat.

[0007] As a further solution of the utility model: the sampling tube is cylindrical, and scale lines are engraved on the outer surface of the tube wall of the sampling tube.

[0008] As a further solution of the utility model: a threaded connection seat is connected to the upper end surface of the sampling tube, the rod body of the threaded rotating rod is threadedly connected in the threaded connection seat, and a locking nut is threadedly connected on the rod body of the threaded rotating rod located above the threaded connection seat.

[0009] As a further solution of the utility model: the spiral soil extracting assembly is provided with two spiral blades, and the two spiral blades are welded and fixed on the rod body of the central rod in a staggered manner.

[0010] As a further solution of the utility model: a bulldozer baffle is fixedly connected to the rod body of the central rod, and the bulldozer baffle is located above the spiral blade.

[0011] As a further solution of the utility model: an annular groove is provided on the outer periphery of the bulldozer baffle, and a rubber ring is clamped in the annular groove.

[0012] As a further solution of the utility model: the cutting rack is composed of a connecting strip and teeth, the teeth are integrally connected to the connecting strip, and the connecting strip is welded in a ring shape to the outer wall of the barrel body at the bottom end of the sampling barrel, and the tip of the teeth is convex downward relative to the sampling barrel.

[0013] As a further solution of the utility model: a fixing plate is welded on the outer wall of the tube body of the positioning sleeve at the bottom end, and a plurality of positioning through holes are opened on the fixing plate.

[0014] As a further solution of the utility model: a stepped groove is provided on the inner wall of the tube body at the bottom of the positioning sleeve, the stepped groove is in a ring shape, and a cutting rack is clamped in the stepped groove.

[0015] As a further solution of the utility model: connecting grooves are opened at the bottom of both sides of the rotating handle seat, and the inner end of the movable handle is integrally connected with a connecting seat. The connecting seat is rotatably connected in the connecting groove through a connecting shaft, and a damping washer is also sleeved on the connecting shaft, and the two sides of the damping washer are respectively tightly attached to the connecting seat and the connecting groove.

[0016] The beneficial effects of the utility model are:

[0017] 1. By providing a sampling barrel and a spiral soil taking component, when sampling, the spiral blade of the spiral soil taking component can rotate the soil sample into the sampling barrel, and the spiral blade can support the soil sample on the blade to fix the soil sample in the barrel, and then when the sampling barrel is pulled upward, the collected soil sample can be taken out together with the sampling barrel, and the collected soil sample can be taken out without sealing the bottom of the sampling barrel;

[0018] 2. By providing a cutting rack, the teeth of the cutting rack can cut the soil in a circular shape during the rotation of the sampling tube, and because the cutting rack is connected to the outer wall of the tube body at the bottom of the sampling tube in a downward convex shape, the diameter of the cutting ring formed by the cutting rack is larger than the outer diameter of the sampling tube, so that more soil can be stuffed into the sampling tube so that the soil sample in the sampling tube is compacted and not easy to loosen, and a certain gap can be left between the sampling tube and the peripheral soil, so that the sampling tube can be lifted upward more easily;

[0019] 3. By movably sleeved a positioning sleeve on the body of the sampling tube, the sampling tube can be ensured to move vertically downward under the limiting action of the positioning sleeve, thereby ensuring that soil samples of corresponding soil depths can be accurately obtained during the sampling process, and it is not easy to affect the soil around the sampling site. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the movable handle of the utility model in an unfolded state;

[0021] Figure 2 This is a schematic diagram of the structure of the movable handle of the utility model in the retracted and extended state;

[0022] Figure 3 This is a schematic diagram of the connection structure between the sampling tube and the cutting rack of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the sampling tube of the utility model;

[0024] Figure 5 This is a schematic diagram of the explosion of the bulldozer baffle of the utility model;

[0025] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the rotating handle base and the movable handle in the unfolded state of the utility model;

[0026] Figure 7 It is a schematic diagram of the partial cross-sectional structure of the rotating handle base and the movable handle in the retracted and extended state of the utility model;

[0027] Figure 8 This is a schematic diagram of the cross-sectional structure of the rotating handle seat of the utility model;

[0028] Fig. 9 This is a schematic diagram of the cutting rack structure of the utility model;

[0029] Fig.10 This is a schematic diagram of the cross-sectional structure of the positioning sleeve of the utility model.

[0030] In the figure: 1, sampling tube, 11, threaded connection seat, 12, scale line, 2, threaded rotating rod, 21, locking nut, 3, rotating handle seat, 31, movable handle, 32, connecting groove, 33, connecting seat, 34, connecting shaft, 35, damping washer, 4, spiral soil taking assembly, 41, center rod, 42, spiral blade, 43, bulldozer baffle, 44, annular groove, 45, rubber ring, 5, cutting rack, 51, connecting strip, 52, teeth, 6, positioning sleeve, 61, fixing plate, 62, stepped groove, 63, positioning perforation. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1

[0033] like Figures 1 to 10 As shown, a soil sampling device for crop planting detection includes a sampling tube 1 and a spiral soil taking component 4, the spiral soil taking component 4 is movably connected in the sampling tube 1, a cutting rack 5 is fixedly connected to the outer wall of the bottom end of the sampling tube 1, and a positioning sleeve 6 is movably sleeved on the body of the sampling tube 1;

[0034] The spiral soil sampling assembly 4 includes a center rod 41 and a spiral blade 42. The spiral blade 42 is fixedly connected to the rod body of the center rod 41. The upper end of the center rod 41 is coaxially connected to a threaded rotating rod 2. The threaded rotating rod 2 penetrates the upper end surface of the sampling tube 1, and the top of the threaded rotating rod 2 is fixedly connected to a rotating handle seat 3. The two sides of the rotating handle seat 3 are movably connected with movable handles 31.

[0035] Embodiment 2

[0036] like Figures 1 to 10 As shown, in addition to all the technical features of the first embodiment, this embodiment also includes:

[0037] The sampling tube 1 is cylindrical, and scale lines 12 are engraved on the outer surface of the tube wall of the sampling tube 1. The cylindrical design allows the sampling tube 1 to rotate and penetrate downward in the sampled soil, and then the soil can be filled into the sampling tube 1 to achieve sampling of soil for planting crops such as oats or potatoes. The scale lines 12 can also be set to control the depth of the sampling tube 1 into the soil, so as to accurately collect soil samples of the corresponding depth.

[0038] The upper end surface of the sampling tube 1 is connected with a threaded connection seat 11, and the rod body of the threaded rotating rod 2 is threadedly connected in the threaded connection seat 11, and the rod body of the threaded rotating rod 2 located above the threaded connection seat 11 is threadedly connected with a locking nut 21, and the threaded rotating rod 2 can be rotated to realize the rotation of the spiral blade 42 of the spiral soil extracting assembly 4 in the sampling tube 1, so as to facilitate the removal of the soil sample in the sampling tube 1, and when the threaded rotating rod 2 is rotated to move the connecting part between the threaded rotating rod 2 and the center rod 41 to the lower end surface of the threaded connecting seat 11, and then the locking nut 21 is tightened on the upper end surface of the threaded connecting seat 11, the sampling tube 1 and the spiral soil extracting assembly 4 are fixed together, and the threaded rotating rod 2 is continued to be rotated to make the sampling tube 1 rotate together with the spiral soil extracting assembly 4, so that the sampling tube 1 can also penetrate into the soil when the spiral soil extracting assembly 4 spirals deep into the soil, so that the soil sample is collected into the sampling tube 1.

[0039] Embodiment 3

[0040] like Figures 1 to 10 As shown, in addition to all the technical features of the first embodiment, this embodiment also includes:

[0041] The spiral soil sampling assembly 4 is provided with two spiral blades 42, and the two spiral blades 42 are welded and fixed on the rod body of the central rod 41 in an offset manner, so that the spiral blades 42 can be screwed into the cylindrical soil sample in the sampling tube 1. The spiral blades 42 can support the soil sample on the blades to fix the soil sample in the tube, and then when the sampling tube 1 is pulled upward, the collected soil sample can be taken out together with the sampling tube 1.

[0042] A pusher baffle 43 is fixedly connected to the rod body of the center rod 41, and the pusher baffle 43 is located above the spiral blade 42. When the soil sample in the sampling tube 1 needs to be taken out, it is only necessary to loosen the locking nut 21 and rotate the threaded rotating rod 2 in the opposite direction to move the threaded rotating rod 2 downward, and then the spiral soil taking assembly 4 and the pusher baffle 43 can be pushed outward to take out the soil sample.

[0043] An annular groove 44 is provided on the outer periphery of the pusher baffle 43, and a rubber ring 45 is placed in the annular groove 44 so that the pusher baffle 43 can contact the inner wall of the sampling tube 1 through the rubber ring 45. When the pusher baffle 43 is pushed outward, the residual soil sample attached to the inner wall of the sampling tube 1 can be pushed out together, so as to clean the sampling tube 1 for the next sampling.

[0044] The cutting rack 5 is composed of a connecting strip 51 and teeth 52. The teeth 52 are integrally connected to the connecting strip 51, and the connecting strip 51 is welded in a ring shape on the outer wall of the barrel at the bottom end of the sampling barrel 1. The tip of the teeth 52 is downwardly convex relative to the sampling barrel 1, so that during the rotation of the sampling barrel 1, the teeth 52 of the cutting rack 5 can cut the soil in a circular shape. Since the cutting rack 5 is connected to the outer wall of the barrel at the bottom end of the sampling barrel 1 in a downwardly convex shape, the diameter of the cutting ring formed by the cutting rack 5 is larger than the outer diameter of the sampling barrel 1. Therefore, on the one hand, more soil can be stuffed into the sampling barrel 1 so that the soil sample in the sampling barrel 1 is compacted and not easy to loosen. On the other hand, a certain gap can be left between the sampling barrel 1 and the soil around it, so that the sampling barrel 1 can be lifted upward more easily.

[0045] Embodiment 4

[0046] like Figures 1 to 10 As shown, in addition to all the technical features of the first embodiment, this embodiment also includes:

[0047] A fixing plate 61 is welded on the outer wall of the tube body at the bottom end of the positioning sleeve 6, and a plurality of positioning through holes 63 are opened on the fixing plate 61. When using the sampling device, the positioning sleeve 6 is sleeved on the sampling tube 1, and the fixing plate 61 is made close to the soil surface. The fixing plate 61 is fixed by passing a ground nail or a wooden stick through the positioning through hole 63. This ensures that the sampling tube 1 moves vertically downward under the limiting action of the positioning sleeve 6, thereby ensuring that the soil sample of the corresponding soil depth can be accurately obtained during the sampling process, and it is not easy to affect the soil around the sampling site.

[0048] A stepped groove 62 is provided on the inner wall of the tube body at the bottom of the positioning sleeve 6. The stepped groove 62 is in a ring shape, and a cutting rack 5 is clamped in the stepped groove 62. Therefore, when the device is placed, since the stepped groove 62 can accommodate the cutting rack 5, when the sampling tube 1 is placed vertically on the soil surface of the sampling area, the bottom end of the positioning sleeve 6 and the fixing plate 61 can also be attached to the soil surface, which is convenient for fixing the positioning sleeve 6.

[0049] The bottom of both sides of the rotating handle seat 3 is provided with connecting grooves 32, and the inner end of the movable handle 31 is integrally connected with a connecting seat 33, and the connecting seat 33 is rotatably connected to the connecting groove 32 through a connecting shaft 34, and a damping washer 35 is also sleeved on the connecting shaft 34, and the two sides of the damping washer 35 are respectively tightly attached to the connecting seat 33 and the connecting groove 32, so that the movable handle 31 can be kept fixed after rotating a certain angle under the damping action of the damping washer 35, so that the movable handle 31 can have two connection states of vertical or horizontal. When the movable handle 31 is rotated to the horizontal state, it can drive the threaded rotating rod 2 to rotate. When the movable handle 31 is in the vertical state, the handle can be retracted and extended, thereby reducing the space occupied.

[0050] Working principle: first select a sampling area, and place the sampling tube 1 vertically on the soil surface of the sampling area. The bottom end of the positioning sleeve 6 and the fixing plate 61 can also be attached to the soil surface. Pass the positioning through-hole 63 through a ground nail or a wooden stick to fix the fixing plate 61. Rotate the movable handle 31 to a horizontal state to drive the threaded rotating rod 2 to rotate, and move the connection part between the threaded rotating rod 2 and the center rod 41 to the lower end surface of the threaded connection seat 11. Then tighten the locking nut 21 on the upper end surface of the threaded connection seat 11, so that the sampling tube 1 and the spiral soil extracting assembly 4 can be fixed together. Continuing to rotate the threaded rotating rod 2 can make the sampling tube 1 rotate together with the spiral soil extracting assembly 4, so that the spiral soil extracting assembly can be fixed together. When the spiral penetrates into the soil, the sampling tube 1 also penetrates into the soil, so that the soil sample is collected into the sampling tube 1. In the process of rotation of the sampling tube 1, the diameter of the cutting ring formed by the cutting rack 5 is larger than the outer diameter of the sampling tube 1, so that more soil can be stuffed into the sampling tube 1, so that the soil sample in the sampling tube 1 is compacted. When the sampling tube 1 penetrates to the corresponding depth to complete the sampling, since there is a certain gap between the sampling tube 1 and the peripheral soil, the sampling tube 1 can be easily lifted up, and then the locking nut 21 is loosened and the threaded rotating rod 2 is rotated in the opposite direction to move the threaded rotating rod 2 downward, so that the spiral soil taking component 4 and the pusher baffle 43 can be pushed outward to take out the soil sample.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A soil sampling device for testing crops, comprising a sampling tube (1) and a spiral soil sampling assembly (4), characterized in that: The spiral soil sampling assembly (4) is movably connected in the sampling barrel (1); a cutting rack (5) is fixedly connected to the outer wall of the bottom end of the sampling barrel (1); and a positioning sleeve (6) is movably sleeved on the barrel body of the sampling barrel (1); The spiral soil sampling assembly (4) comprises a central rod (41) and a spiral blade (42), wherein the spiral blade (42) is fixedly connected to the rod body of the central rod (41), and the upper end of the central rod (41) is coaxially connected to a threaded rotating rod (2), wherein the threaded rotating rod (2) penetrates the upper end surface of the sampling tube (1), and the top end of the threaded rotating rod (2) is fixedly connected to a rotating handle seat (3), and movable handles (31) are movably connected to both sides of the rotating handle seat (3).

2. A soil sampling device for crop planting according to claim 1, characterized in that: The sampling cylinder (1) is cylindrical, and scale lines (12) are engraved on the outer surface of the cylinder wall of the sampling cylinder (1).

3. The soil sampling device for crop planting according to claim 1, characterized in that: A threaded connection seat (11) is connected to the upper end surface of the sampling cylinder (1), the shaft of the threaded rotating rod (2) is threadedly connected in the threaded connection seat (11), and a locking nut (21) is threadedly connected on the shaft of the threaded rotating rod (2) located above the threaded connection seat (11).

4. The soil sampling device for crop planting according to claim 1, characterized in that: The spiral soil extracting assembly (4) is provided with two spiral blades (42), and the two spiral blades (42) are welded and fixed on the rod body of the central rod (41) in a staggered manner.

5. The soil sampling device for crop planting according to claim 1, characterized in that: A pusher baffle (43) is also fixedly connected to the rod body of the central rod (41), and the pusher baffle (43) is located above the spiral blade (42).

6. A soil sampling device for crop planting according to claim 5, characterized in that: An annular clamping groove (44) is provided on the outer periphery of the bulldozer baffle (43), and a rubber ring (45) is clamped in the annular clamping groove (44).

7. The soil sampling device for crop planting according to claim 1, characterized in that: The cutting rack (5) is composed of a connecting strip (51) and teeth (52), the teeth (52) being integrally connected to the connecting strip (51), and the connecting strip (51) being welded in a ring shape to the outer wall of the barrel body at the bottom end of the sampling barrel (1), and the tip of the teeth (52) is convex downward relative to the sampling barrel (1).

8. The soil sampling device for crop planting according to claim 1, characterized in that: A fixing plate (61) is welded on the outer wall of the tube body at the bottom end of the positioning sleeve (6), and a plurality of positioning through holes (63) are formed on the fixing plate (61).

9. The soil sampling device for crop planting according to claim 8, characterized in that: The positioning sleeve (6) has a stepped groove (62) on the inner wall of the tube body at the bottom end. The stepped groove (62) is in a ring shape, and a cutting rack (5) is clamped in the stepped groove (62).

10. The soil sampling device for crop planting according to claim 1, characterized in that: The bottoms of both sides of the rotating handle seat (3) are provided with connecting grooves (32); the inner end of the movable handle (31) is integrally connected with a connecting seat (33); the connecting seat (33) is rotatably connected in the connecting groove (32) via a connecting shaft (34); a damping washer (35) is also sleeved on the connecting shaft (34); and the two sides of the damping washer (35) are respectively tightly attached to the connecting seat (33) and the connecting groove (32).

Images