A soil survey sampler

Abstract

This utility model belongs to the field of information collection technology, and particularly relates to a soil survey sampler. The sampler includes a sampling cylinder body with a sampling shovel detachably connected to its lower end. The shovel has a trapezoidal cross-section at its end. A cleaning mechanism is movably connected to the upper end of the sampling cylinder body. The cleaning mechanism includes a rotating block, a pushing rod, a pushing ring, a rotating rod, and a cleaning ring. One end of the pushing rod is fixedly connected to the end face of the rotating block, and the other end is fixedly connected to the pushing ring. The outer diameter of the pushing ring is the same as the inner diameter of the sampling cylinder body. A rotating hole is provided on the lower end face of the pushing rod, and one end of the rotating rod is placed inside the rotating hole and engages with it. The cleaning ring is sleeved on the outer circumferential wall of the rotating rod, and the other end of the rotating rod is rotatably connected to the sampling cylinder body. A guide rod passes through the cleaning ring and is fixedly connected to the sampling cylinder body. Compared with the prior art, this utility model enables the cleaning brush bristles to thoroughly scrape away residual soil from the cylinder wall, eliminating cross-contamination of samples.

Description

Technical Field

[0001] This utility model relates to the field of information collection technology, and more specifically, it relates to a soil survey sampler. Background Technology

[0002] Soil environment actually refers to the soil sphere that continuously covers the Earth's land surface. Soil environmental elements include farmland, grassland and forest land. In order to guide agricultural production, soil characteristics are constantly changing due to the influence of field climate and crops. Sampling devices are used by staff in soil surveys.

[0003] For example, the portable soil survey sampler disclosed in authorization announcement number CN218546193U can scrape off the clay adhering to the shovel head by simply pulling out the pushing device and moving it on the surface of the shovel head when collecting clay, which is convenient to operate and use.

[0004] When multiple samples are taken, the residual soil (especially heavy metal pollutants) on the shovel can cause deviations in subsequent sample data, requiring the samples to be resampled, which affects work efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a soil survey sampler that reduces shovel head pollution.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A soil survey sampler includes a sampling cylinder body, with a sampling shovel detachably connected to the lower end face of the sampling cylinder body. The cross-section of the end of the sampling shovel is trapezoidal.

[0008] A cleaning mechanism is movably connected to the upper end of the sampling cylinder body. The cleaning mechanism includes a rotating block, a pushing rod, a pushing ring, a rotating rod, and a cleaning ring.

[0009] One end of the push rod is fixedly connected to the end face of the rotating block, and the other end of the push rod is fixedly connected to a push ring. The outer diameter of the push ring is the same as the inner diameter of the sampling cylinder body.

[0010] A rotating hole is provided on the lower end face of the push rod. One end of the rotating rod is placed in the rotating hole and engages with the rotating hole so that the push rod can move and drive the rotating rod to rotate. The cleaning ring is sleeved on the outer circumferential wall of the rotating rod. The other end of the rotating rod is rotatably connected to the main body of the sampling cylinder. A guide rod passes through the cleaning ring and is fixedly connected to the main body of the sampling cylinder.

[0011] The present invention is further configured such that: at least four slots are equidistantly provided on the outer peripheral wall of the sampling cylinder body, and a claw plate is hinged to the slot, and a support plate is hinged to the other end of the claw plate.

[0012] The present invention is further configured such that: the sampling shovel includes a connecting part and a sampling part, the outer peripheral wall of the connecting part is provided with a thread, the inner wall of the sampling cylinder body is provided with an annular groove, the inner wall of the annular groove is provided with a thread adapted to the connecting part, and the sampling shovel and the sampling cylinder body are connected by a thread.

[0013] The present invention is further configured such that: the inner wall of the claw plate is provided with an embedding groove corresponding to the support plate, the inner wall of the embedding groove is provided with a spring, one end of the spring is fixedly connected to the inner wall of the embedding groove and the other end is fixedly connected to the outer wall of the support plate.

[0014] The present invention is further configured such that the side wall of the rotating block is provided with an anti-slip groove.

[0015] The present invention is further configured such that the outer peripheral wall of the cleaning ring is provided with a plurality of cleaning bristles.

[0016] Compared with the shortcomings of the prior art, the beneficial effects of this utility model are as follows:

[0017] The spring hinge structure between the claw and the support plate automatically retracts during sampling to reduce resistance, and quickly unfolds to form a multi-directional support platform during sample lifting, effectively preventing sample drop. The cleaning mechanism utilizes the meshing and conversion of the push rod and the rotating rod to directly convert the downward pressure into the high-speed rotation of the cleaning ring. Combined with the guide rod to stabilize the trajectory, the cleaning bristles thoroughly scrape away residual soil on the cylinder wall, eliminating cross-contamination of samples. The push ring pushes out the soil placed inside the sampling cylinder body, maintaining the integrity of the sample and facilitating the user's observation of soil at different depths. The trapezoidal sampling shovel and threaded quick-release design significantly reduce drilling resistance in hard soil and improve disassembly efficiency. Different sampling shovels can also be replaced according to different soil types. The overall structure requires no electric assistance and reliably adapts to complex field conditions. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0019] Sampling cylinder body 1, sampling shovel 2, rotating block 3, pushing rod 4, pushing ring 5, rotating rod 6, cleaning ring 7, slot 8, claw 9, support plate 10, connecting part 11, sampling part 12, spring 13, anti-slip groove 14. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Working principle: When sampling soil, the operator presses the sampling shovel 2 at the lower end of the sampling tube body 1 into the soil. The trapezoidal cross-section of the sampling shovel 2 reduces the resistance to soil penetration. The soil thrust acts on the claw 9 in the slot 8, causing the claw 9 to retract towards the inner wall of the sampling tube body 1. At this time, the support plate 10 compresses the spring 13 embedded in the slot to achieve complete retraction. After sampling, the sampling tube body 1 is lifted out. The soil's own weight causes the claw 9 to lose external constraint, and the spring 13 embedded in the slot pushes the support plate 10 outward to form a support platform, effectively preventing the sample from falling off. The cleaning mechanism drives the push rod 4 to rotate by rotating the rotating block 3. Since the push ring 5 meshes with the push rod 4, the push ring 5 will move downward, and the push ring 5 will descend along the inner wall of the sampling tube body 1 to compact the sample. The meshing structure between the lower rotating hole of the push rod 4 and the rotating rod 6 converts linear motion into rotational motion, driving the cleaning ring 7, which is sleeved on the rotating rod 6, to rotate. The cleaning bristles on the outer circumference of the cleaning ring 7 rotate purely under the constraint of the guide rod, thoroughly scraping away residual soil from the cylinder wall. After sampling is completed, the threaded sampling shovel 2 is unscrewed to obtain a complete and uncontaminated columnar soil sample.

[0023] In actual use, there are multiple sampling shovels 2, and different sampling shovels 2 can be replaced according to different soil types.

[0024] like Figure 1 As shown,

[0025] The sample tube body 1 includes at least four slots 8 equidistantly opened on the outer peripheral wall of the sample tube body. A claw 9 is hinged in the slot 8, and a support plate 10 is hinged at the other end of the claw 9. The sample tube body automatically retracts to reduce resistance during sampling.

[0026] The inner wall of the claw 9 is provided with an embedding groove corresponding to the support plate 10. A spring 13 is provided on the inner wall of the embedding groove. One end of the spring 13 is fixedly connected to the inner wall of the embedding groove and the other end is fixedly connected to the outer wall of the support plate 10. When lifting the sample, it quickly unfolds to form a multi-directional support platform, effectively preventing the sample from falling off.

[0027] A sampling shovel 2 is detachably connected to the lower end face of the sampling cylinder body 1. The cross-section of the end of the sampling shovel 2 is trapezoidal. The sampling shovel 2 includes a connecting part 11 and a sampling part 12. The outer peripheral wall of the connecting part 11 is threaded. The inner wall of the sampling cylinder body 1 is provided with an annular groove. The inner wall of the annular groove is provided with a thread that matches the connecting part 11. The sampling shovel 2 is connected to the sampling cylinder body 1 by a thread. There are multiple sampling shovels 2, and different sampling shovels 2 can be replaced according to different soil conditions.

[0028] The upper end of the sampling cylinder body 1 is movably connected to a cleaning mechanism, which includes a rotating block 3, a pushing rod 4, a pushing ring 5, a rotating rod 6, and a cleaning ring 7. The side wall of the rotating block 3 is provided with an anti-slip groove 14, which makes it easier for the user to rotate the rotating block 3 and increases the friction between the user and the rotating block 3.

[0029] One end of the push rod 4 is fixedly connected to the end face of the rotating block 3, and the other end of the push rod 4 is fixedly connected to the push ring 5. The outer diameter of the push ring 5 is consistent with the inner diameter of the sampling cylinder body 1. The outer peripheral wall of the cleaning ring 7 is provided with several cleaning bristles. The cleaning bristles on the outer peripheral wall of the cleaning ring 7 make pure rotational motion under the restriction of the guide rod, thoroughly scraping away the residual soil on the cylinder wall.

[0030] A rotating hole is provided on the lower end face of the push rod 4. One end of the rotating rod 6 is placed in the rotating hole and engages with the rotating hole so that the push rod 4 can move and drive the rotating rod 6 to rotate. The cleaning ring 7 is sleeved on the outer peripheral wall of the rotating rod 6. The other end of the rotating rod 6 is rotatably connected to the sampling cylinder body 1. A guide rod passes through the cleaning ring 7 and is fixedly connected to the sampling cylinder body 1. The guide rod prevents the cleaning ring 7 from shifting during movement.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A soil investigation sampler comprising a sampling barrel body (1) characterised in that: The sampling tube body (1) is detachably connected to a sampling shovel (2) at its lower end. The cross-section of the end of the sampling shovel (2) is trapezoidal. The upper end of the sampling tube body (1) is movably connected to a cleaning mechanism, which includes a rotating block (3), a push rod (4), a push ring (5), a rotating rod (6), and a cleaning ring (7). One end of the push rod (4) is fixedly connected to the end face of the rotating block (3), and the other end of the push rod (4) is fixedly connected to the push ring (5). The outer diameter of the push ring (5) is consistent with the inner diameter of the sampling cylinder body (1). A rotating hole is provided on the lower end face of the push rod (4). One end of the rotating rod (6) is placed in the rotating hole and meshes with the rotating hole so that the push rod (4) can move and drive the rotating rod (6) to rotate. The cleaning ring (7) is sleeved on the outer peripheral wall of the rotating rod (6). The other end of the rotating rod (6) is rotatably connected to the sampling cylinder body (1). A guide rod passes through the cleaning ring (7) and is fixedly connected to the sampling cylinder body (1).

2. A soil investigation sampler according to claim 1, characterised in that: The outer peripheral wall of the sampling tube body is provided with at least four slots (8) at equal intervals. A claw (9) is hinged in the slot (8), and a support plate (10) is hinged at the other end of the claw (9).

3. A soil investigation sampler according to claim 1, characterised in that: The sampling shovel (2) includes a connecting part (11) and a sampling part (12). The outer peripheral wall of the connecting part (11) is threaded, and the inner wall of the sampling cylinder body (1) is provided with an annular groove. The inner wall of the annular groove is provided with a thread that matches the connecting part (11). The sampling shovel (2) and the sampling cylinder body (1) are connected by threads.

4. A soil investigation sampler according to claim 2, wherein: The inner wall of the claw (9) is provided with an embedding groove corresponding to the support plate (10). A spring (13) is provided on the inner wall of the embedding groove. One end of the spring (13) is fixedly connected to the inner wall of the embedding groove and the other end is fixedly connected to the outer wall of the support plate (10).

5. A soil investigation sampler according to claim 1, characterised in that: The rotating block (3) has anti-slip grooves (14) on its side wall.

6. A soil investigation sampler according to claim 1, characterised in that: The outer peripheral wall of the cleaning ring (7) is provided with several cleaning bristles.

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