Environmental soil sampler

Abstract

The utility model relates to the field of soil sampling, in particular to an environmental soil sampler which adopts the technical scheme that the environmental soil sampler comprises a fixed table and an outer cylinder, a first spiral blade is mounted on the outer wall of the lower end of the outer cylinder, a sampling rod is mounted in an inner cavity of the outer cylinder, a drill bit is mounted at the lower end of the sampling rod, and a protection component is mounted at the lower end of the fixed table and positioned outside the outer cylinder; the utility model has the beneficial effects that when the whole outer cylinder is rotated to drill into the ground, the bottom of the outer cylinder firstly drills into the ground through the drill bit, after the required depth is drilled, the rotation of the outer cylinder can be stopped, then the sampling rod is rotated to descend and extend out of the outer cylinder, and when the sampling rod descends, the drill bit is driven to synchronously move, so that the drill bit is separated from the bottom of the outer cylinder; along with the movement of the sampling rod, the sampling rod drills through a second spiral blade on the surface, so that a sampling hole in the surface of the lower end of the sampling rod leaks out, and when the sampling hole leaks out, soil at the bottom of the outer cylinder enters the sampling rod through the sampling hole, so that the sampling precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling, specifically to an environmental soil sampler. Background Technology

[0002] Environmental soil testing is a process of assessing and analyzing soil quality and properties. It typically includes soil sampling and laboratory analysis. Soil sampling refers to the process of collecting soil samples outdoors. The purpose of sampling is to obtain representative soil samples in order to accurately assess the characteristics and quality of the soil.

[0003] In existing technologies, soil sampling is usually carried out in two ways: one is sampling with a large soil sampling machine, and the other is sampling with a handheld sampler. Large soil sampling machines usually refer to mechanized equipment, mainly including drilling rigs, hydraulically driven samplers, etc., which are suitable for occasions that require large-scale, deep or continuous sampling. Handheld samplers are lighter and more suitable for small-scale, shallow or flexible operation scenarios.

[0004] When sampling soil outdoors, some electrically powered sampling devices cannot be powered in time. Therefore, handheld soil samplers are mostly used outdoors. Existing handheld samplers generally include a sampling tube and a handle. During operation, the sampler needs to be rotated by holding the handle to drill into the soil, and then it is taken out for sampling. Alternatively, it may include an outer tube and a spiral sampling rod. During operation, the spiral sampling rod is rotated to drill into the ground and is used for sampling. However, both of the above methods have certain drawbacks. The first method, which directly uses the sampling tube to drill into the ground for sampling, has limited sampling depth, and it is extremely difficult to drill into compacted soil or soil with high hardness. The second method, which uses a spiral sampling rod to drill into the ground, can drill into different depths and sample soil at different depths. However, when drilling deeper, the soil is easily squeezed by the spiral during rotation, causing stratification confusion and mixing of soil from different depths, thus affecting the accuracy of soil sampling.

[0005] Therefore, it is necessary to invent an environmental soil sampler. Utility Model Content

[0006] The purpose of this invention is to solve the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an environmental soil sampler, comprising a fixed platform and an outer cylinder, wherein the outer cylinder is installed at the lower end of the fixed platform, a first spiral blade is installed on the outer wall of the lower end of the outer cylinder, a sampling rod is installed in the inner cavity of the outer cylinder, a drill bit is installed at the lower end of the sampling rod, a protective component is installed at the lower end of the fixed platform, the protective component is located outside the outer cylinder, a first handle is fixedly installed on both sides of the fixed platform, and a second handle is installed on the upper end of the fixed platform.

[0008] Based on the above features: when the first handle is turned, the entire device can be rotated. At this time, the outer cylinder will drill into the ground through the drill bit and the first spiral blade. When the drilling reaches the depth required for sampling, the sampling rod can be extended again by the second handle. At this time, the sampling rod will extend through the drill bit, so that the drill bit is separated from the bottom of the outer cylinder. Then the sampling rod can collect soil samples at that depth.

[0009] Preferably, a slot is provided on the upper outer wall of the outer cylinder.

[0010] Based on the above features, it is convenient to fix the shrinkage protection components.

[0011] Preferably, a second helical blade is installed on the outside of the sampling rod, a sampling hole is opened on the lower end surface of the sampling rod, and a movable nut is installed on the upper end of the sampling rod.

[0012] Based on the above features: the sampling rod is drilled into the ground through the second helical blade, and when the sampling rod extends outward, the sampling hole can be exposed, which facilitates the soil to enter the interior of the sampling rod through the sampling hole.

[0013] Preferably, the protective component includes a bellows and a counterweight ring installed at the lower end of the bellows, and the surface of the counterweight ring has through holes.

[0014] Based on the above features: when the entire sampler is not in use, the counterweight ring can be used to drive the bellows to descend. At this time, the bellows and counterweight ring can cover the outer cylinder and the first helical blade for protection, preventing the first helical blade from being exposed and scratching surrounding personnel or objects. When the sampler needs to be used, the counterweight ring can be pushed up to stack the bellows and shorten their length. At this time, the outer cylinder and the first helical blade at the lower end will be exposed, making it easier for the outer cylinder to be drilled into the ground.

[0015] Preferably, the bellows and the counterweight ring are both hollow tubular structures, and the diameter of the bellows and the counterweight ring is larger than that of the outer cylinder and the first helical blade.

[0016] Based on the above features, it is convenient to adjust the bellows and counterweight ring to extend and retract outside the outer cylinder and the first helical blade.

[0017] Preferably, a positioning seat is installed at the end of the first handle away from the fixed platform, a threaded sleeve is installed at one end of the positioning seat, a screwdriver is installed in the middle of the threaded sleeve, and a connecting hole is opened at the end of the positioning seat away from the screwdriver, and a fastener is movably connected inside the connecting hole.

[0018] Based on the above features: when not in use, the positioning seat will be connected to the end of the first handle away from the fixed platform. At this time, the screwdriver will be located in the inner cavity of the first handle. When it is necessary to install or remove bolts, the positioning seat can be rotated to separate from the threaded hole, making it convenient to take out the screwdriver for use.

[0019] Preferably, the end of the first handle away from the fixed platform has a threaded hole, and the inner wall of the threaded hole has an internal thread.

[0020] Based on the above features, the positioning seat and the first handle can be easily disassembled and reassembled.

[0021] The beneficial effects of this utility model are:

[0022] 1. Before soil sampling, the sampling rod can be rotated and stored inside the outer cylinder, ensuring the drill bit is flush with the bottom of the outer cylinder to prevent the sampling hole from being exposed. When the entire outer cylinder is rotated to drill into the ground, the bottom of the outer cylinder will be drilled into the ground first through the drill bit. After drilling to the required depth, the rotation of the outer cylinder can be stopped. Then, the sampling rod is rotated to descend and extend out of the outer cylinder. As the sampling rod descends, it will drive the drill bit to move synchronously, separating the drill bit from the bottom of the outer cylinder. As the sampling rod moves, it will drill through the second helical blades on its surface, exposing the sampling hole on the lower surface of the sampling rod. When the sampling hole is exposed, the soil at the bottom of the outer cylinder will enter the sampling rod through the sampling hole, ensuring sampling accuracy.

[0023] 2. Before the outer cylinder needs to be drilled underground, the counterweight ring can be pushed upward to shorten the length of the bellows stacked. When the through hole on the surface of the counterweight ring is aligned with the slot opened on the upper outer wall of the outer cylinder, fasteners can be inserted between the two to fix them. At this time, the outer cylinder and the first helical blade at the lower end will be exposed, making it easier for the outer cylinder to be drilled underground. When the sampler is not needed, the fasteners can be removed to allow the counterweight ring to drive the bellows downward. At this time, the bellows and counterweight ring can cover the outer cylinder and the first helical blade for protection, preventing the first helical blade from being exposed and scratching surrounding personnel or objects. Attached Figure Description

[0024] Figure 1 A diagram showing the rising state of a protective component for an environmental soil sampler provided by this utility model;

[0025] Figure 2 A diagram illustrating the descent state of a protective component for an environmental soil sampler provided by this utility model;

[0026] Figure 3A schematic diagram of the internal structure of the outer cylinder of an environmental soil sampler provided by this utility model;

[0027] Figure 4 A schematic diagram of the first handle structure of an environmental soil sampler provided by this utility model.

[0028] In the diagram: 1. Fixed platform; 2. Outer cylinder; 21. Slot; 3. First helical blade; 4. Sampling rod; 41. Second helical blade; 42. Sampling hole; 43. Movable nut; 5. Drill bit; 6. Protective component; 61. Bellows; 62. Counterweight ring; 63. Through hole; 7. First handle; 71. Positioning seat; 72. Threaded sleeve; 73. Screwdriver; 74. Connecting hole; 75. Fastener; 8. Second handle. Detailed Implementation

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] See attached document Figure 1-4 This utility model provides an environmental soil sampler, including a fixed platform 1 and an outer cylinder 2. The outer cylinder 2 is a cylindrical structure with open ends and is fixedly installed at the lower end of the fixed platform 1. A first spiral blade 3 is installed on the outer wall of the lower end of the outer cylinder 2 to facilitate the rotation of the outer cylinder 2 into the ground. An adjusting screw is connected to the middle of the lower end of the fixed platform 1. The upper end of the sampling rod 4 is threadedly connected to the adjusting screw through a movable nut 43. The sampling rod 4 has a hollow structure in the middle to facilitate the insertion of the adjusting screw into the inner cavity of the sampling rod 4. A drill bit 5 is installed at the lower end of the sampling rod 4. The drill bit 5 is detachably threadedly connected to the bottom of the sampling rod 4, and the diameter of the drill bit 5 is the same as the diameter of the outer cylinder 2. Similarly, before the outer cylinder 2 needs to be drilled into the ground, the adjusting screw can be adjusted by rotating the second handle 8 (the second handle 8 is fixedly connected to the upper end of the adjusting screw through the middle of the fixed platform 1, the fixed platform 1 has a hole in the middle, and the connection end of the fixed platform 1 and the second handle 8 is provided with a bearing, so that when the second handle 8 is rotated, the adjusting screw can be rotated synchronously). At this time, the movable nut 43 will drive the sampling rod 4 to rise, so that the drill bit 5 is in contact with the bottom of the outer cylinder 2. Then, the entire outer cylinder 2 is rotated by the first handle 7, and the bottom of the outer cylinder 2 will be drilled into the ground first through the drill bit 5. Then, the first spiral blade 3 will continue to drill in to bring out the surrounding soil.

[0031] Since the outer cylinder 2 has graduations on its surface, once the outer cylinder 2 has reached the required depth, its rotation can be stopped. Then, the adjusting screw can be reversed, causing the movable nut 43 to lower the sampling rod 4. As the sampling rod 4 lowers, it will move the drill bit 5 synchronously, separating the drill bit 5 from the bottom of the outer cylinder 2. At this time, the sampling hole 42 on the lower surface of the sampling rod 4 will be exposed. As the sampling rod 4 moves, it will drill through the second spiral blade 41 on its surface, allowing soil to enter the sampling rod 4 through the sampling hole 42. After sampling is completed, the adjusting screw can be rotated forward again, causing the movable nut 43 to raise the sampling rod 4. At the same time, the drill bit 5 will re-fit with the bottom of the outer cylinder 2 to seal the sampling hole 42. Finally, the entire sampler can be removed. When soil samples are needed, the drill bit 5 can be separated from the bottom of the sampling rod 4, and the collected soil can be poured out (both ends of the sampling rod 4 have openings; the lower opening facilitates soil pouring out, and the upper opening facilitates the adjustment screw's passage).

[0032] The first handle 7 has a threaded hole at the end furthest from the fixed platform 1, with internal threads on the inner wall of the threaded hole. One end of the positioning seat 71 is threaded into the threaded hole via a threaded sleeve 72, facilitating the removal and removal of the positioning seat 71. A screwdriver 73 is also fixedly mounted at the end of the positioning seat 71 near the threaded sleeve 72. When not in use, the positioning seat 71 is connected to the end of the first handle 7 furthest from the fixed platform 1, and the screwdriver 73 is located inside the first handle 7. When it is necessary to install or remove bolts, the positioning seat 71 can be rotated to separate from the threaded hole for easy installation and removal. The screwdriver 73 is taken out for use, and the positioning seat 71 has a connecting hole 74 at the end away from the screwdriver 73. A fastener 75 is movably connected inside the connecting hole 74. The fastener 75 can be a screw or a positioning pin (when the fastener 75 is a screw, an internal thread can be opened on the inner wall of the connecting hole 74). This application does not make specific limitations and can be set according to needs. When the fastener 75 is not in use, it can be inserted into the connecting hole 74 for storage. When it is needed, the fastener 75 can be taken out to fix the protective component 6, which is convenient to take out and use at any time.

[0033] When the sampler is not in use, the fastener 75 can be removed, causing the counterweight ring 62 to lower the bellows 61. At this time, the bellows 61 will extend into a tubular structure. Since both the bellows 61 and the counterweight ring 62 are hollow tubular structures, and their diameters are larger than those of the outer cylinder 2 and the first helical blade 3, the bellows 61 and the counterweight ring 62 can cover the outer cylinder 2 and the first helical blade 3 for protection, preventing the first helical blade 3 from being exposed and scratching surrounding personnel or objects. When the sampler needs to be used, the counterweight ring 62 can be pushed upwards, causing the bellows 61 to stack and shorten its length. At this time, the outer cylinder 2 and the first helical blade 3 at the lower end will be exposed. When the through hole 63 on the surface of the counterweight ring 62 is aligned with the slot 21 opened on the upper outer wall of the outer cylinder 2, the fastener 75 can be inserted between the two to fix them, preventing the counterweight ring 62 and the bellows 61 from moving downwards on their own.

[0034] The usage process of this utility model is as follows: Before the outer cylinder 2 needs to be drilled into the ground, the counterweight ring 62 can be pushed upward to shorten the length of the bellows 61 by stacking them. When the through hole 63 on the surface of the counterweight ring 62 is aligned with the slot 21 opened on the upper outer wall of the outer cylinder 2, the fastener 75 can be inserted between the two to fix them. Then, the screw can be adjusted by rotating the second handle 8 clockwise. At this time, the movable nut 43 will drive the sampling rod 4 to rise and be stored inside the outer cylinder 2, and make the drill bit 5 fit against the bottom of the outer cylinder 2. Then, the entire outer cylinder 2 is rotated by the first handle 7. The bottom of the outer cylinder 2 will be drilled into the ground first by the drill bit 5, and then drilled continuously by the first spiral blade 3. When the outer cylinder 2 has reached the required depth, the rotation of the outer cylinder 2 can be stopped. Then, the screw can be adjusted in reverse to make the movable nut 43 drive the sampling rod 4 to descend. When the sampling rod 4 descends, it will drive the drill bit 5 to move synchronously, so that the drill bit 5 separates from the bottom of the outer cylinder 2. As the sampling rod 4 moves, the sampling rod 4 will drill through the second spiral blade 41 on the surface, so that the soil enters the sampling rod 4 through the sampling hole 42. After sampling is completed, the screw can be rotated forward again to make the movable nut 43 drive the sampling rod 4 to rise. At the same time, the drill bit 5 and the bottom of the outer cylinder 2 will be attached again to seal the sampling hole 42. Finally, the entire sampler can be taken out. When it is necessary to obtain the sampled soil, the drill bit 5 can be separated from the bottom of the sampling rod 4, and then the collected soil can be poured out. When the sampler is not needed, the fastener 75 can be removed, so that the counterweight ring 62 drives the bellows 61 to descend. At this time, the bellows 61 and the counterweight ring 62 can cover the outer cylinder 2 and the first spiral blade 3 for external protection.

[0035] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An environmental soil sampler comprising a stationary base (1) and an outer tube (2) mounted at the lower end of the stationary base (1), characterised in that: The outer cylinder (2) has a first spiral blade (3) installed on the lower outer wall. The outer cylinder (2) has a sampling rod (4) installed in the inner cavity. The sampling rod (4) has a drill bit (5) installed at the lower end. The fixed platform (1) has a protective component (6) installed at the lower end. The protective component (6) is located outside the outer cylinder (2). The fixed platform (1) has a first handle (7) fixedly installed on both sides. The fixed platform (1) has a second handle (8) installed at the upper end.

2. An environmental soil sampler according to claim 1, wherein: The outer wall of the upper end of the outer cylinder (2) is provided with a slot (21).

3. An environmental soil sampler according to claim 1, wherein: The sampling rod (4) is equipped with a second spiral blade (41) on the outside, and a sampling hole (42) is opened on the lower surface of the sampling rod (4). A movable nut (43) is installed on the upper end of the sampling rod (4).

4. An environmental soil sampler according to claim 1, wherein: The protective component (6) includes a bellows (61) and a counterweight ring (62) installed at the lower end of the bellows (61), and the surface of the counterweight ring (62) is provided with a through hole (63).

5. An environmental soil sampler according to claim 4, wherein: The corrugated pipe (61) and the counterweight ring (62) are both hollow tubular structures, and the diameter of the corrugated pipe (61) and the counterweight ring (62) is larger than that of the outer cylinder (2) and the first helical blade (3).

6. An environmental soil sampler according to claim 1, wherein: The first handle (7) is equipped with a positioning seat (71) at the end away from the fixed platform (1). A threaded sleeve (72) is installed at one end of the positioning seat (71). A screwdriver (73) is installed in the middle of the threaded sleeve (72). A connecting hole (74) is opened at the end of the positioning seat (71) away from the screwdriver (73). A fastener (75) is movably connected inside the connecting hole (74).

7. An environmental soil sampler according to claim 6, wherein: The first handle (7) has a threaded hole at the end away from the fixed platform (1), and the inner wall of the threaded hole has an internal thread.

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