Mangrove forest original columnar soil sampler convenient to open and close

Abstract

The invention relates to the technical field of soil sampling, and discloses a mangrove forest original columnar soil sampler convenient to open and close, which comprises two groups of semi-arc sampling pipes, cleaning parts arranged in inner cavities of the semi-arc sampling pipes, and a plurality of sampling pipes arranged in the inner cavities of the semi-arc sampling pipes, and the ends, close to each other, of the two groups of semi-arc sampling pipes are hinged to each other. The one-way intercepting part is arranged at the bottom of the semi-arc sampling pipe and comprises an intercepting cylinder arranged on the surface of the bottom of the semi-arc sampling pipe. According to the mangrove forest original columnar soil sampler convenient to open and close, two sets of semi-arc sampling pipes are arranged in a half-and-half mode in a hinged mode, the two sets of semi-arc sampling pipes can be freely opened in a half-and-half mode, complete undisturbed soil samples can be directly taken out conveniently, secondary disturbance and pollution caused by bulldozing or cutting and other modes are avoided, meanwhile, intercepting cylinders are arranged at the bottoms of the semi-arc sampling pipes, and the sampling effect is good. Meanwhile, a chamfer notch is polished to be sharp, the influence of tree roots on a soil layer can be cut off, and disturbance of the tree roots to the soil is reduced.

Description

Technical Field

[0001] This invention relates to the field of soil sampling technology, and in particular to a portable, openable mangrove original column soil sampler. Background Technology

[0002] Mangroves are wetland woody plant communities, mainly composed of evergreen trees or shrubs, growing in the intertidal zone of tropical and subtropical coasts. The bark of most mangrove plants contains tannins, which oxidize upon contact with air, turning red or reddish-brown, hence the name "mangrove." Mangroves are one of the most productive marine ecosystems in the tropical and subtropical coastal transition zones, playing a vital role in purifying seawater, preventing wind and waves, sequestering carbon, and maintaining biodiversity. They are known as "coastal guardians" and "oceanic lungs," and are also important habitats for rare and endangered waterfowl, as well as breeding grounds for aquatic organisms. my country has approximately 27,000 hectares of mangroves. In recent years, China has made positive progress in mangrove protection and restoration, but problems such as the small total area of ​​mangroves, habitat degradation, and invasive species remain prominent. Regional coordination in overall protection is insufficient, and protection and monitoring capabilities are still relatively weak.

[0003] Soil samplers are tools used to obtain soil samples, commonly including soil augers, shovels, and spades. Soil augers consist of a drill bit and a handle made of a rigid material (steel or hard plastic). The drill bit is often spiral or cylindrical. A spiral drill bit has a pair of sharp cutting edges at the top that can rotate and cut into the soil, followed by a large, expanded cavity to hold soil. As the handle rotates, the drill penetrates the soil surface, allowing soil samples from the desired layer to be collected to be introduced into the cavity. Cylindrical soil augers have a slightly different diameter at both ends; the end connected to the handle is slightly larger than the end in contact with the soil, ensuring that soil already inside the cylinder does not scatter due to the movement of the auger.

[0004] However, in silty soil layers such as mangrove forests, the soil is loose, with numerous roots and high water content. Traditional soil columnar samplers have several drawbacks. During sampling, the roots are difficult to insert into the soil layer, and the roots cannot be quickly cut off, affecting the original soil sample condition. In addition, the rough inner wall of most samplers results in high friction, causing a large soil compression rate and disturbing the original soil sample. During the removal of the original soil, some samples lack a bottom interception system, causing the soil sample to fall out. Furthermore, after the original soil is removed, some samples are pushed out using a bulldozing system or cut open the sampler with a cutting machine to remove the soil sample, all of which damage the original soil layer condition, disturb the original soil, and contaminate the soil sample. Summary of the Invention

[0005] In view of the problems of existing soil column samplers, such as difficulty in inserting into the soil layer due to root influence during sampling, failure to quickly cut off the roots affecting the original soil sample state, and the rough inner wall of most samplers resulting in high friction, causing high soil compression rate and disturbing the original soil sample, this invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a portable, openable mangrove original columnar soil sampler, the purpose of which is to ensure that the soil sample will not fall during the extraction process by having a one-way interception component, thereby ensuring the success rate of sampling.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a portable mangrove original columnar soil sampler, comprising a semi-arc sampling tube, wherein two sets of the semi-arc sampling tubes are provided, and the two sets of semi-arc sampling tubes are hinged together at their close ends; a cleaning component is provided in the inner cavity of the semi-arc sampling tube; and a one-way interception component is provided at the bottom of the semi-arc sampling tube. The one-way interception component includes an interception cylinder provided on the bottom surface of the semi-arc sampling tube, a second threaded groove provided at the bottom end of the surface of the semi-arc sampling tube, and a threaded groove provided at the top end of the inner sidewall of the interception cylinder, wherein the threaded groove and the second threaded groove are threadedly connected to each other.

[0008] As a preferred embodiment of the portable openable mangrove original columnar soil sampler of the present invention, the unidirectional interception component further includes multiple sets of placement slots disposed on the inner side wall of the interception cylinder, and the placement slots are located below the threaded slots, and a blocking plate is disposed at the bottom of both sides of the inner cavity of the placement slot.

[0009] As a preferred embodiment of the portable openable mangrove original columnar soil sampler of the present invention, wherein: a triangular limiting block is provided at the bottom of the baffle plate near the placement slot, and a chamfered cut is provided at the bottom of the interception tube.

[0010] As a preferred embodiment of the portable mangrove original columnar soil sampler of the present invention, the top of the surface of the semi-arc sampling tube is provided with a threaded column, a handle is provided on the surface of the threaded column, and a threaded hole is provided on the side of the handle near the threaded column, and the threaded hole and the surface of the threaded column are threadedly connected to each other.

[0011] As a preferred embodiment of the portable mangrove original columnar soil sampler of the present invention, a rectangular block is provided at the top of the inner wall of the semi-circular sampling tube, a ring magnetic block is provided at one end of one set of the rectangular blocks away from the semi-circular sampling tube, and a ring iron block is provided at one end of another set of the rectangular blocks away from the semi-circular sampling tube, and the ring magnetic block and the ring iron block are magnetically attracted to each other.

[0012] As a preferred embodiment of the portable openable mangrove original columnar soil sampler of the present invention, wherein the inner walls of the two sets of semi-arc sampling tubes are coated with stainless steel paint.

[0013] As a preferred embodiment of the portable openable mangrove original columnar soil sampler of the present invention, the cleaning component includes a circular cleaning disc disposed inside the two sets of semi-circular sampling tubes, a push rod disposed on both sides of the top of the circular cleaning disc, and a connecting plate disposed on the top of the push rod, wherein the connecting plate is located above the rectangular block.

[0014] As a preferred embodiment of the portable openable mangrove original columnar soil sampler of the present invention, the cleaning component further includes a first threaded groove disposed on the top of the surface of the semi-circular sampling tube and located below the threaded column, a cleaning outer ring sleeved on the surface of the two sets of semi-circular sampling tubes, an outer magnetic ring disposed on the top of the cleaning outer ring, a threaded collar disposed on the top of the outer magnetic ring, wherein the threaded collar and the first threaded groove are threadedly connected to each other, and an inner magnetic ring disposed at the top edge of the circular cleaning disc.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This invention uses two sets of semi-circular sampling tubes hinged together, which can be opened in half at will, making it easy to directly extract complete undisturbed soil samples and avoiding secondary disturbance and contamination caused by pushing or cutting. At the same time, the intercepting tube set at the bottom of the semi-circular sampling tube is able to enter but not exit, so that the soil does not fall when it is lifted up, ensuring the success rate of sampling. In addition, the chamfered cut is sharpened to cut off the influence of tree roots in the soil layer and reduce the disturbance of tree roots to the soil. Finally, the inner walls of the two sets of semi-circular sampling tubes are sprayed with stainless steel paint, making the inner walls of the semi-circular sampling tubes smoother and frictionless, reducing the soil compression rate.

[0016] 2. This invention provides synchronized circular cleaning discs and cleaning outer rings inside and on the surface of the two sets of semi-circular sampling tubes. This allows for rapid cleaning of the inner walls and surfaces of the two sets of semi-circular sampling tubes after sampling, facilitating subsequent sampling operations. Simultaneously, the cleaning outer rings can be positioned at the top of the surfaces of the two sets of semi-circular sampling tubes to prevent interference with the sampling operation. Furthermore, the cleaning rings can assist in fixing the two sets of semi-circular sampling tubes, resulting in greater stability when they are closed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the portable, openable, mangrove original columnar soil sampler of the present invention. Figure 2 This is a schematic diagram of the overall structure of the portable openable mangrove original columnar soil sampler of the present invention from another perspective. Figure 3This is a schematic diagram of the exploded three-dimensional structure of the portable openable mangrove original columnar soil sampler of the present invention. Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the portable openable mangrove original columnar soil sampler of the present invention. Figure 5 This is a three-dimensional structural diagram of the interception tube of the portable openable mangrove original columnar soil sampler of the present invention; Figure 6 This is a cross-sectional three-dimensional structural diagram of the interception tube of the portable openable mangrove original columnar soil sampler of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Semi-arc sampling tube; 11. Threaded column; 12. Handle; 13. Threaded hole; 14. Rectangular block; 15. Annular magnetic block; 16. Annular iron block; 2. Cleaning component; 21. Circular cleaning disc; 22. Push rod; 23. Connecting plate; 24. Inner magnetic ring; 25. Cleaning outer ring; 26. Outer magnetic ring; 27. Threaded collar; 28. First threaded groove; 3. One-way interception component; 31. Interception cylinder; 32. Chamfered notch; 33. Threaded groove; 34. Second threaded groove; 35. Placement groove; 36. Blocking plate; 37. Triangular limit block. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Example 1

[0021] Reference Figures 1-6 This invention provides a portable, closable mangrove original columnar soil sampler, comprising a semi-arc sampling tube 1. The semi-arc sampling tube 1 is characterized by having two sets of tubes, with their ends hinged together. The inner walls of both sets of tubes are coated with stainless steel paint, making the inner walls smoother. A cleaning component 2 is disposed within the inner cavity of the semi-arc sampling tube 1, and a one-way interception component 3 is disposed at the bottom of the tube. The one-way interception component 3 includes an interception cylinder 31 disposed on the bottom surface of the semi-arc sampling tube 1, a second threaded groove 34 disposed at the bottom end of the surface of the semi-arc sampling tube 1, and a threaded slot 33 disposed at the top end of the inner wall of the interception cylinder 31. The threaded slot 33 and the second threaded groove 34 are threadedly connected to each other.

[0022] The one-way interception component 3 also includes multiple sets of placement slots 35 disposed on the inner side wall of the interception cylinder 31, with the placement slots 35 located below the threaded slots 33, and baffle plates 36 disposed at the bottom ends of both sides of the inner cavity of the placement slots 35.

[0023] A triangular limiting block 37 is provided on the bottom of the baffle plate 36 near the placement slot 35, and a chamfered cut 32 is provided on the bottom of the intercepting tube 31. By sharpening the chamfered cut 32, tree roots can be cut off.

[0024] A threaded post 11 is provided on the top of the surface of the semi-arc sampling tube 1, a handle 12 is provided on the surface of the threaded post 11, and a threaded hole 13 is provided on the side of the handle 12 near the threaded post 11. The threaded hole 13 and the surface of the threaded post 11 are threadedly connected to each other, so that the handle 12 can be detached from the semi-arc sampling tube 1.

[0025] A rectangular block 14 is provided on the top of the inner wall of the semi-arc sampling tube 1. A ring magnetic block 15 is provided at one end of the rectangular block 14 away from the semi-arc sampling tube 1, and a ring iron block 16 is provided at the other end of the rectangular block 14 away from the semi-arc sampling tube 1. The ring magnetic block 15 and the ring iron block 16 are magnetically attracted to each other, which facilitates the pre-fixation of the two sets of semi-arc sampling tubes 1.

[0026] During use, firstly, the two sets of semi-arc sampling tubes 1 are merged so that the rectangular blocks 14 on the inner side of the two sets of semi-arc sampling tubes 1 are close to each other. Then, the annular magnetic blocks 15 and annular iron blocks 16 on the two sets of rectangular blocks 14 are magnetically attracted to each other, thus completing the pre-fixation of the two sets of semi-arc sampling tubes 1. Then, the two sets of handles 12 can be aligned with the threaded posts 11 on the two sets of semi-arc sampling tubes 1 respectively, so that the threaded posts 11 are inserted into the threaded holes 13 on the handles 12 for threaded connection. Next, the intercepting cylinder 31 is aligned with the bottom end of the two sets of semi-arc sampling tubes 1, and the threaded groove 33 on the intercepting cylinder 31 and the second threaded groove 34 on the surface of the semi-arc sampling tube 1 are threadedly matched, and then the intercepting cylinder 31 is screwed and fixed to the bottom of the two sets of semi-arc sampling tubes 1. Next, grasp both handles 12 and align the chamfered notch 32 at the bottom of the interceptor tube 31 with the desired sampling location. Then, press down firmly to allow the interceptor tube 31 and the two sets of semi-circular sampling tubes 1 to enter the soil. Simultaneously, soil will also enter the interceptor tube 31 and the two sets of semi-circular sampling tubes 1. When the soil enters the interceptor tube 31, the multiple sets of baffles 36 inside the interceptor tube 31 will move upward and retract into the placement slot 35. After obtaining the appropriate depth, grasp the handles 12 and lift upward to move the semi-circular... When sampling tube 1 is pulled out of the soil layer, multiple sets of baffle plates 36 retract into the placement slot 35 inside the interception tube 31. Since there is no soil restriction at the bottom, the multiple sets of baffle plates 36 fall horizontally at the bottom of the interception tube 31. Then, the soil inside the two sets of semi-arc sampling tubes 1 can be supported. After that, the semi-arc sampling tube 1 is laid flat on the ground, the bottom interception tube 31 is removed, and the two sets of semi-arc sampling tubes 1 are opened in half. Then, the soil inside the two sets of semi-arc sampling tubes 1 can be sampled separately.

[0027] Example 2

[0028] Reference Figures 1-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the cleaning component 2 includes a circular cleaning disc 21 disposed inside the two sets of semi-circular sampling tubes 1, a push rod 22 disposed on both sides of the top of the circular cleaning disc 21, and a connecting plate 23 disposed on the top of the push rod 22, and the connecting plate 23 is located above the rectangular block 14.

[0029] The cleaning component 2 also includes a first threaded groove 28 disposed on the top of the surface of the semi-arc sampling tube 1 and located below the threaded post 11, a cleaning outer ring 25 sleeved on the surface of the two sets of semi-arc sampling tubes 1, an outer magnetic ring 26 disposed on the top of the cleaning outer ring 25, a threaded collar 27 disposed on the top of the outer magnetic ring 26, and the threaded collar 27 and the first threaded groove 28 being threadedly connected to each other, which serves to restrict the threaded collar 27 to the surface of the semi-arc sampling tube 1, and an inner magnetic ring 24 disposed at the top edge of the circular cleaning disc 21, the inner magnetic ring 24 and the outer magnetic ring 26 being magnetically attracted to each other.

[0030] During use, after sampling is completed, the two sets of semi-circular sampling tubes 1 can be merged first, and then the cleaning outer ring 25 can be fitted onto the surface of the two sets of semi-circular sampling tubes 1. At this time, the inner magnetic ring 24 and the outer magnetic ring 26 are magnetically connected to each other. Then, the connecting plate 23 can be moved up and down to allow the push rod 22 to drive the circular cleaning disc 21 to move up and down on the inner wall of the two sets of semi-circular sampling tubes 1, and at the same time drive the outer magnetic ring 26 to move up and down on the surface of the two sets of semi-circular sampling tubes 1, so that the cleaning outer ring 25 moves on the surface of the two sets of semi-circular sampling tubes 1, thereby simultaneously scraping and cleaning the inner wall and surface of the two sets of semi-circular sampling tubes 1, effectively preventing soil from adhering to the surface. When sampling is required, the cleaning outer ring 25 can be fitted onto the surface of the two sets of semi-arc sampling tubes 1. Then, the cleaning outer ring 25 is threadedly connected to the first threaded groove 28 on the surface of the semi-arc sampling tube 1 through the threaded collar 27 on the cleaning outer ring 25. This can restrict the cleaning outer ring 25 to the top of the surface of the two sets of semi-arc sampling tubes 1, so as to avoid affecting the sampling operation. It can also be used to assist in fixing the two sets of semi-arc sampling tubes 1.

[0031] The remaining structure is the same as that in Example 1.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A portable, openable mangrove original columnar soil sampler, comprising a semi-circular sampling tube (1), characterized in that: The semi-arc sampling tube (1) is provided in two sets, and the two sets of semi-arc sampling tubes (1) are hinged to each other at one end. A cleaning component (2) is provided in the inner cavity of the semi-arc sampling tube (1), and a one-way interception component (3) is provided at the bottom of the semi-arc sampling tube (1). The one-way interception component (3) includes an interception cylinder (31) provided on the bottom surface of the semi-arc sampling tube (1), a second threaded groove (34) provided at the bottom end of the surface of the semi-arc sampling tube (1), and a threaded slot (33) provided at the top of the inner side wall of the interception cylinder (31). The threaded slot (33) and the second threaded groove (34) are threadedly connected to each other.

2. The portable, openable mangrove original columnar soil sampler according to claim 1, characterized in that: The one-way interception component (3) also includes multiple sets of placement slots (35) disposed on the inner side wall of the interception cylinder (31), and the placement slots (35) are located below the threaded slots (33), and baffles (36) are disposed at the bottom of both sides of the inner cavity of the placement slots (35).

3. The portable, openable mangrove original columnar soil sampler according to claim 2, characterized in that: The bottom of the baffle plate (36) is provided with a triangular limiting block (37) on the side near the placement slot (35), and the bottom of the intercepting tube (31) is provided with a chamfered cut (32).

4. The portable, openable mangrove original columnar soil sampler according to claim 1, characterized in that: The top of the surface of the semi-arc sampling tube (1) is provided with a threaded post (11), a handle (12) is provided on the surface of the threaded post (11), and a threaded hole (13) is provided on the side of the handle (12) near the threaded post (11), and the threaded hole (13) and the surface of the threaded post (11) are threadedly connected to each other.

5. The portable, openable mangrove original columnar soil sampler according to claim 1, characterized in that: A rectangular block (14) is provided on the top of the inner wall of the semi-arc sampling tube (1). A ring magnetic block (15) is provided at one end of the rectangular block (14) away from the semi-arc sampling tube (1), and a ring iron block (16) is provided at the other end of the rectangular block (14) away from the semi-arc sampling tube (1). The ring magnetic block (15) and the ring iron block (16) are magnetically attracted to each other.

6. The portable, openable mangrove original columnar soil sampler according to claim 5, characterized in that: The inner walls of the two sets of semi-arc sampling tubes (1) are coated with stainless steel paint.

7. The portable, openable mangrove original columnar soil sampler according to claim 6, characterized in that: The cleaning component (2) includes a circular cleaning disc (21) disposed inside the two sets of semi-circular sampling tubes (1), a push rod (22) disposed on both sides of the top of the circular cleaning disc (21), and a connecting plate (23) disposed on the top of the push rod (22), and the connecting plate (23) is located above the rectangular block (14).

8. The portable, openable mangrove original columnar soil sampler according to claim 7, characterized in that: The cleaning component (2) further includes a first threaded groove (28) disposed on the top of the surface of the semi-arc sampling tube (1) and located below the threaded post (11), a cleaning outer ring (25) sleeved on the surfaces of the two sets of semi-arc sampling tubes (1), an outer magnetic ring (26) disposed on the top of the cleaning outer ring (25), a threaded collar (27) disposed on the top of the outer magnetic ring (26), and the threaded collar (27) and the first threaded groove (28) are threadedly connected to each other, and an inner magnetic ring (24) disposed at the top edge of the circular cleaning disc (21).

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