Adjustable depth soil aggregate collection tube

Abstract

This utility model discloses an adjustable-depth soil aggregate collection tube, belonging to the field of soil collection. It includes an outer tube and an inner tube, with the inner tube slidably connected inside the outer tube. A threaded rod is threaded into the inner part of the outer tube. One end of the threaded rod inside the outer tube is rotatably connected to the end of the inner tube. A handle is fixedly connected to the other end of the threaded rod outside the outer tube. A fixing block is fixedly connected inside the inner tube, with a threaded rod (number two) threaded into the middle of the fixing block. In this design, rotating the threaded rod using the handle (number one) drives the inner tube to slide stably within the outer tube, achieving depth control. Whether sampling surface or deep soil, different depth requirements can be met without changing tools, significantly improving the equipment's versatility, especially suitable for research scenarios requiring stratified soil sample collection.

Description

Technical Field

[0001] This utility model relates to the field of soil collection, and more specifically, to a soil aggregate collection tube with adjustable depth. Background Technology

[0002] In the field of soil research, in-depth research on soil aggregates helps to accurately grasp soil characteristics, fertility status and ecological functions. Soil aggregates are large aggregates formed by cementing soil particles with calcium, magnesium, organic matter, mycelium and other substances. They are not easily disintegrated when shaken, soaked and washed in water, and maintain their original structure. Their condition is a key factor in maintaining soil fertility and ensuring high crop yields.

[0003] In existing technologies, soil samplers can mostly only collect soil using a single spiral sampler. The structure of this type of spiral sampler is relatively simple, and its length is often fixed. For studies that require collecting soil aggregates at different depths, this fixed-length spiral sampler is even more limiting. If researchers want to obtain samples from multiple depths, they often need to change spiral samplers of different lengths multiple times. This is not only cumbersome and increases the time and manpower costs of field operations, but frequent replacement of parts may also cause additional disturbance to the soil during sampling, affecting the original state of the sample. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an adjustable-depth soil aggregate collection tube, which can realize the function of adjusting the depth of soil sampling.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An adjustable-depth soil aggregate collection tube includes an outer tube and an inner tube. The inner tube is slidably connected inside the outer tube. A threaded rod is threaded inside the outer tube. One end of the threaded rod inside the outer tube is rotatably connected to the end of the inner tube. A handle is fixedly connected to the other end of the threaded rod outside the outer tube. A fixing block is fixedly connected inside the inner tube. A threaded rod is threaded to the middle of the fixing block.

[0009] Furthermore, a sliding block is slidably connected inside the inner cylinder, the sliding block is located above the fixed block, and the upper end of the second threaded rod is rotatably connected to the sliding block.

[0010] Furthermore, a spiral sampler is fixedly connected to the bottom end of the second threaded rod. The spiral sampler is located below the fixed block, and a drill bit is fixedly connected to the bottom end of the spiral sampler. The diameter of the drill bit is equal to the diameter of the inner wall of the inner cylinder.

[0011] Furthermore, a motor is fixedly connected above the sliding block, and the output end of the motor is fixedly connected to the upper end of the second threaded rod.

[0012] Furthermore, a threaded line is provided in the middle of the outer wall of the outer cylinder, a fixed ring is slidably connected to the outer wall of the outer cylinder, a rotating ring is rotatably connected above the fixed ring, and the rotating ring is threadedly connected to the middle of the outer wall of the outer cylinder.

[0013] Furthermore, a second handle is fixedly connected to the outer wall of the rotating ring, and multiple support rods are rotatably connected to the lower part of the outer wall of the outer cylinder. A connecting rod is rotatably connected to the end of the support rod away from the outer cylinder.

[0014] Furthermore, the end of the connecting rod away from the support rod is rotatably connected to the outside of the fixing ring.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this scheme, by rotating the No. 1 threaded rod with the No. 1 handle, the inner cylinder can be driven to slide stably in the outer cylinder, thereby realizing the control of the sampling depth. Whether it is surface soil or deep soil sampling, different depth requirements can be met without changing the tool, which greatly improves the versatility of the equipment and is especially suitable for scientific research scenarios that require layered soil sample collection.

[0018] (2) In this scheme, the rotating ring can be adjusted by the No. 2 handle, which can drive the fixed ring to slide. Then, the opening angle of the support rod can be adjusted by the connecting rod. This design can be flexibly adapted to the terrain such as slopes and soft ground, increasing the contact area between the equipment and the ground, avoiding depth deviation or sample disturbance caused by shaking during sampling, and improving the stability of the equipment in complex environments. In addition, the support rod can be retracted by adjusting the rotating ring in the opposite direction, reducing the overall volume of the equipment and facilitating transportation and storage. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the outer cylinder in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the inner cylinder in this utility model;

[0022] Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle;

[0023] Figure 5 This is a schematic diagram showing the connection relationship between the rotating ring and the fixed ring in this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Outer cylinder; 11. No. 1 threaded rod; 12. No. 1 handle; 13. Fixed ring; 14. Rotating ring; 15. No. 2 handle; 16. Connecting rod; 17. Support rod; 18. Inner cylinder; 19. Fixed block; 2. No. 2 threaded rod; 21. Sliding block; 22. Motor; 23. Spiral sampler; 24. Drill bit. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Please see Figure 1-5An adjustable-depth soil aggregate collection tube includes an outer tube 1 and an inner tube 18. The inner tube 18 is slidably connected inside the outer tube 1. A threaded rod 11 is threadedly connected inside the outer tube 1. One end of the threaded rod 11 inside the outer tube 1 is rotatably connected to the end of the inner tube 18. A handle 12 is fixedly connected to the end of the threaded rod 11 outside the outer tube 1. A fixing block 19 is fixedly connected inside the inner tube 18. A threaded rod 2 is threadedly connected to the middle of the fixing block 19. The inner tube 18 slides inside... A sliding block 21 is connected above the fixed block 19. The upper end of the second threaded rod 2 is rotatably connected to the sliding block 21. A spiral sampler 23 is fixedly connected to the bottom end of the second threaded rod 2. The spiral sampler 23 is located below the fixed block 19. A drill bit 24 is fixedly connected to the bottom end of the spiral sampler 23. The diameter of the drill bit 24 is equal to the diameter of the inner wall of the inner cylinder 18. A motor 22 is fixedly connected above the sliding block 21. The output end of the motor 22 is fixedly connected to the upper end of the second threaded rod 2.

[0031] In this embodiment, by rotating the first threaded rod 11 through the first handle 12, the inner cylinder 18 can be driven to slide stably inside the outer cylinder 1, thereby precisely adjusting the overall length of the collection cylinder and flexibly controlling the collection depth of soil aggregates. Whether it is the sampling needs of shallow soil or deeper soil, they can be met through this mechanical adjustment method. There is no need to change the collection tools of different lengths, which improves the versatility and applicability of the equipment.

[0032] The motor 22 fixed above the sliding block 21 provides power to the second threaded rod 2. The motor 22 drives the second threaded rod 2 to rotate. At this time, the sliding block 21 will slide inside the inner cylinder 18, thereby driving the spiral sampler 23 and the drill bit 24 to extend out from inside the inner cylinder 18. This linkage allows the spiral sampler 23 and the drill bit 24 to make axial feed more smoothly with the movement of the sliding block 21, quickly contact and cut into the soil, and further improve the sampling speed. Compared with traditional manual sampling, this electric drive combined with sliding extension can complete the sampling faster and reduce the physical exertion of manual operation. Especially when facing soil with hard texture or high viscosity, it can significantly improve the sampling efficiency and save working time.

[0033] As the spiral sampler 23 extends from the inner cylinder 18 during rotation, it can collect soil aggregates in a spiral manner. At the same time, the diameter of the drill bit 24 is equal to the diameter of the inner wall of the inner cylinder 18, so that the drill bit 24 can always fit tightly against the inner wall of the inner cylinder 18 when it extends into the soil. This can prevent soil from seeping into the inner cylinder 18 when the bottom end of the inner cylinder 18 enters the soil, and can also effectively prevent soil samples from leaking out from gaps during the collection process. The rotation of the second threaded rod 2 drives the sliding block 21 to slide inside the inner cylinder 18, ensuring that the spiral sampler 23 is subjected to uniform force during the extension and collection process, and avoiding the soil aggregates from being crushed due to unstable force.

[0034] The fixed block 19 inside the inner cylinder 18 provides stable support for the second threaded rod 2. The sliding block 21 is rotatably connected to the second threaded rod 2 and can slide inside the inner cylinder 18. When the second threaded rod 2 rotates, the sliding of the sliding block 21 and the rotation of the second threaded rod 2 form a stable linkage, ensuring that the spiral sampler 23 and the drill bit 24 can extend smoothly from the inner cylinder 18.

[0035] Example 2:

[0036] Please see Figure 1-5 An adjustable-depth soil aggregate collection tube has a threaded section in the middle of the outer wall of the outer tube 1. A fixed ring 13 is slidably connected to the outer wall of the outer tube 1. A rotating ring 14 is rotatably connected above the fixed ring 13. The rotating ring 14 is threadedly connected to the middle of the outer wall of the outer tube 1. A second handle 15 is fixedly connected to the outer wall of the rotating ring 14. Multiple support rods 17 are rotatably connected to the lower part of the outer wall of the outer tube 1. A connecting rod 16 is rotatably connected to the end of the support rod 17 away from the outer tube 1. The end of the connecting rod 16 away from the support rod 17 is rotatably connected to the outside of the fixed ring 13.

[0037] In this embodiment, a threaded line is provided in the middle of the outer wall of the outer cylinder 1. A rotating ring 14, which is threaded to the middle of the outer cylinder 1, is rotatably connected above the fixed ring 13 that is slidably connected to the outer wall. The second handle 15 on the outer wall of the rotating ring 14 facilitates the operator to rotate the rotating ring 14. When the rotating ring 14 is rotated, it can drive the fixed ring 13 to slide along the axial direction of the outer cylinder 1. The fixed ring 13 is rotatably connected to multiple support rods 17 below the outer cylinder 1 through a connecting rod 16. The sliding of the fixed ring 13 will drive the connecting rod 16 to pull or push the support rods 17, thereby adjusting the opening angle of the support rods 17. In this way, the support rods 17 can be adjusted to a suitable support angle according to different terrains and soil firmness, increasing the contact area between the equipment and the ground, improving the stability of the sampling tube during the sampling process, and avoiding the impact of equipment shaking on sampling accuracy. It can work stably even in areas with large slopes or uneven ground.

[0038] When the collection tube is not in use, rotating the rotating ring 14 in the opposite direction can drive the fixed ring 13 to slide upward, and then pull the support rod 17 towards the outer cylinder 1 through the connecting rod 16, reducing the overall space occupied by the equipment and making it easier to store and transport. This foldable support structure design makes the equipment more convenient to move and store, and improves its flexibility of use in field operations and other scenarios.

[0039] Working principle: Before collecting soil aggregates, the support structure of the equipment needs to be adjusted. The operator rotates the rotating ring 14 by turning the second handle 15. Since the rotating ring 14 is connected to the threaded line in the middle of the outer wall of the outer cylinder 1, the rotating ring 14 will move along the axial direction of the outer cylinder 1, thereby driving the fixed ring 13 connected to it to slide on the outer wall of the outer cylinder 1. The sliding of the fixed ring 13 will pull or push the support rod 17 through the connecting rod 16, thereby adjusting the opening angle of the support rod 17 to adapt to different terrains and ensure that the collection tube is stably placed at the sampling point.

[0040] Next, adjust the overall length of the sampling tube according to the required sampling depth. Rotate handle 12 to make threaded rod 11 rotate inside the outer tube 1. Since threaded rod 11 is rotatably connected to the end of inner tube 18 and inner tube 18 is slidably connected inside outer tube 1, the rotation of threaded rod 11 will drive inner tube 18 to slide inside outer tube 1, thereby adjusting the overall length of the sampling tube to meet the sampling requirements at different depths.

[0041] After the preparation is completed, start the motor 22. The output end of the motor 22 drives the second threaded rod 2 to rotate. Since the second threaded rod 2 is threadedly connected to the fixed block 19, and the upper end of the second threaded rod 2 is rotatably connected to the sliding block 21, and the sliding block 21 is slidably connected inside the inner cylinder 18, the second threaded rod 2 will move along the axial direction when it rotates, and at the same time drive the sliding block 21 to slide inside the inner cylinder 18.

[0042] As the second threaded rod 2 moves axially, the spiral sampler 23 and drill bit 24 at its bottom end extend out from inside the inner cylinder 18. The drill bit 24 rotates under the drive of the motor 22, cutting into the soil with its sharp head. The spiral sampler 23 rotates synchronously to collect soil aggregates in a spiral manner. Since the diameter above the drill bit 24 is equal to the diameter of the inner wall of the inner cylinder 18, it can effectively prevent soil sample leakage and ensure that the collected soil aggregates enter the spiral sampler 23 intact.

[0043] After sampling is completed, turn off motor 22, rotate threaded rod 2 in the opposite direction to retract spiral sampler 23 and drill bit 24 into inner cylinder 18, then adjust the support structure in the opposite direction to retract support rod 17, thus completing one soil aggregate collection operation.

[0044] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An adjustable-depth soil aggregate collection tube, comprising an outer tube (1) and an inner tube (18), characterized in that: The inner cylinder (18) is slidably connected to the inside of the outer cylinder (1). The outer cylinder (1) is threadedly connected to a first threaded rod (11). The first threaded rod (11) is rotatably connected to the end of the inner cylinder (18) at one end inside the outer cylinder (1). The first threaded rod (11) is fixedly connected to a first handle (12) at one end outside the outer cylinder (1). The inner cylinder (18) is fixedly connected to a fixing block (19). The middle part of the fixing block (19) is threadedly connected to a second threaded rod (2).

2. The adjustable-depth soil aggregate collection tube according to claim 1, characterized in that: The inner cylinder (18) is slidably connected to a sliding block (21), which is located above the fixed block (19). The upper end of the second threaded rod (2) is rotatably connected to the sliding block (21).

3. The adjustable-depth soil aggregate collection tube according to claim 2, characterized in that: The bottom end of the second threaded rod (2) is fixedly connected to a spiral sampler (23), which is located below the fixed block (19). The bottom end of the spiral sampler (23) is fixedly connected to a drill bit (24), and the diameter of the drill bit (24) is equal to the diameter of the inner wall of the inner cylinder (18).

4. The adjustable-depth soil aggregate collection tube according to claim 3, characterized in that: A motor (22) is fixedly connected above the sliding block (21), and the output end of the motor (22) is fixedly connected to the upper end of the second threaded rod (2).

5. The adjustable-depth soil aggregate collection tube according to claim 1, characterized in that: The outer wall of the outer cylinder (1) has a threaded line in the middle. A fixed ring (13) is slidably connected to the outer wall of the outer cylinder (1). A rotating ring (14) is rotatably connected above the fixed ring (13). The rotating ring (14) is threadedly connected to the middle of the outer wall of the outer cylinder (1).

6. The adjustable-depth soil aggregate collection tube according to claim 5, characterized in that: The outer wall of the rotating ring (14) is fixedly connected to a second handle (15), and a plurality of support rods (17) are rotatably connected to the lower part of the outer wall of the outer cylinder (1). A connecting rod (16) is rotatably connected to one end of the support rod (17) away from the outer cylinder (1).

7. The adjustable-depth soil aggregate collection tube according to claim 6, characterized in that: The end of the connecting rod (16) away from the support rod (17) is rotatably connected to the outside of the fixing ring (13).

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