A tree root sampling device

Abstract

The utility model discloses a kind of tree root system sampling devices, belong to sampling equipment field, including the pillar of symmetrical distribution, the bottom of pillar is provided with base, the central position of base is provided with the hole for the hole of drill cylinder passing;The upper outer periphery of drill cylinder is provided with several through holes;The outer periphery of the top of drill cylinder is provided with bevel gear ring, bevel gear ring is engaged with vertically distributed bevel gear, motor one is connected with bevel gear, motor one is set on mounting plate, the one side of mounting plate integrally formed has connecting plate, and be provided with up-down moving mechanism on connecting plate, and guiding sliding mechanism is arranged between pillar and mounting plate;The bottom of base is symmetrically provided with support leg at both ends, the bottom of support leg is provided with support plate, and the bottom of support plate is slidably provided with ground grabbing mechanism.The utility model realizes that drill cylinder automatically rotates downhole, effectively shortens single sampling time, significantly reduces the human input and labor intensity of long-term field operation.

Description

Technical Field

[0001] This utility model relates to the field of sampling equipment, and in particular to a tree root sampling device. Background Technology

[0002] A tree root sampling device is a tool used to collect tree root samples. It obtains root samples from different soil layers and tree ages, measuring indicators such as root length, diameter, surface area, number of branches, and root tip density. This clarifies the spatial distribution patterns of the roots (e.g., the ratio of deep roots to surface roots) and growth dynamics (e.g., seasonal growth peaks), providing data for constructing growth models of the tree's "underground parts." Traditional root drills require manual drilling with a buffer hammer, taking 10-20 minutes per sample in compacted soil, and are difficult for a single person to operate. Therefore, this invention proposes a tree root sampling device. Utility Model Content

[0003] The purpose of this invention is to provide a tree root sampling device to solve the problems mentioned above.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a tree root sampling device, comprising symmetrically distributed support columns, a base at the bottom of each support column, a hole at the center of the base for a drill cylinder to pass through, teeth with the same direction of rotation distributed circumferentially around the bottom of the drill cylinder, and a cutting blade integrally formed on the sidewall of the side opposite to the direction of rotation of the teeth, the cutting blade facing opposite to the direction of rotation of the drill cylinder; several through holes are formed on the upper outer circumference of the drill cylinder; a bevel gear ring is provided on the top outer circumference of the drill cylinder, the bevel gear ring meshes with vertically distributed bevel gears, the bevel gears are connected to a motor, the motor is mounted on a mounting plate, a connecting plate is integrally formed on one side of the mounting plate, the connecting plate is provided with a vertical moving mechanism, a guide sliding mechanism is provided between the support columns and the mounting plate; support legs are symmetrically arranged at the bottom of both ends of the base, support plates are provided at the bottom of the support legs, and a ground gripping mechanism is slidably provided at the bottom of the support plates; a height adjustment rod is provided at the top of the support column, and the left and right height adjustment rods are connected together by a handle.

[0006] Furthermore, the up-and-down moving mechanism includes a rack disposed on the outer wall of the support column, the rack meshing with a gear, the gear being connected to the output shaft of a reduction gearbox, the reduction gearbox being disposed on the connecting plate, and the input shaft of the reduction gearbox being connected to a motor II via a coupling.

[0007] Furthermore, the guide sliding mechanism includes a slide rail disposed on the outer side wall of the support column, and a slider that cooperates with the slide rail is disposed on the mounting plate.

[0008] Furthermore, the gripping mechanism includes a gripping toothed plate located in a groove at the bottom of the support plate. A guide rod is provided at the center of the upper end of the gripping toothed plate. A foot pedal is provided after the guide rod slidably extends out of the support plate. A buckle is provided between the foot pedal and the support plate. One end of the buckle is rotatably mounted on the support plate, and the other end has a positioning hole. A positioning post is slidably mounted in the positioning hole. A positioning groove that cooperates with the positioning post is provided on the support plate.

[0009] Furthermore, the height adjustment rod includes an outer cylinder and an inner rod. The outer cylinder has several adjustment holes, and a tightening bolt is installed in each adjustment hole. The end of the tightening bolt abuts against the inner rod.

[0010] Furthermore, the handle includes a ring located in the middle, with hand grips symmetrically arranged on both sides of the ring, and a pushing mechanism slidably arranged inside the ring.

[0011] Furthermore, the pushing mechanism includes a pressure plate located at the bottom, the outer diameter of which is smaller than the inner diameter of the ring; a connecting rod extending upward is provided at the center of the upper end face of the pressure plate, and a handle is provided at the other end of the connecting rod, the length of which is greater than the inner diameter of the ring.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This utility model tree root sampling device drives the drill barrel to rotate via a motor, bevel gear, and bevel gear ring. It also achieves simultaneous rotation and up-down movement through an up-and-down moving mechanism, enabling the drill barrel to rotate and drill down automatically. This effectively shortens the sampling time for a single sampling point and significantly reduces the manpower input and labor intensity of long-term field operations. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a front view of the tree root sampling device of this utility model;

[0016] Figure 2 This is a schematic diagram of a partial structure of the drill barrel;

[0017] Figure 3 This is a schematic diagram of the gripping mechanism.

[0018] Figure 4 This is a schematic diagram of the snap-fit ​​structure;

[0019] Figure 5 This is a schematic diagram of the vertical moving mechanism.

[0020] Figure 6 This is a structural diagram of a bevel gear ring;

[0021] Figure 7 This is a top view of the handle.

[0022] Explanation of reference numerals in the attached diagram: 1. Support column; 2. Base; 3. Mounting plate; 4. Connecting plate; 5. Drill barrel; 6. Through hole; 7. Height adjustment rod; 8. Handle; 9. Outrigger; 10. Support plate; 11. Grip plate; 12. Guide rod; 13. Foot pedal; 14. Buckle; 15. Positioning post; 16. Motor 1; 17. Gearbox; 18. Rack; 19. Motor 2; 20. Bevel gear; 21. Bevel gear ring; 22. Pressure plate; 23. Connecting rod; 24. Handle;

[0023] 501. Tooth; 502. Cutting blade;

[0024] 801. Hand grip; 802. Ring. Detailed Implementation

[0025] like Figure 1-7 As shown, a tree root sampling device includes symmetrically distributed support columns 1. A base 2 is mounted at the bottom of each support column 1. A hole for a drill cylinder 5 to pass through is located at the center of the base 2. The bottom circumference of the drill cylinder 5 has teeth 501 with the same direction of rotation. A cutter 502 is integrally formed on the sidewall of the teeth 501 and the side with the opposite rotation direction. The cutting edge of the cutter 502 faces the opposite direction of rotation to the drill cylinder 5. When a predetermined depth is reached, the drill cylinder 5 is slightly rotated counterclockwise several times. The cutter 502 cuts off the bottom of the soil core, preventing the root system from being pulled and broken due to root entanglement, thus avoiding the loss of root samples from the bottom soil layer.

[0026] The upper outer periphery of the drill cylinder 5 is provided with several through holes 6. When the drill cylinder 5 is screwed into the soil, the soil will enter the drill cylinder 5 and compress the air inside. The through holes 6 allow this part of the air to be discharged, reducing the internal air pressure, so that the soil can smoothly enter the drill cylinder 5, ensuring the integrity and length of the soil core.

[0027] A bevel gear ring 21 is installed on the outer periphery of the top of the drill barrel 5. The bevel gear ring 21 meshes with vertically distributed bevel gears 20. The bevel gears 20 are connected to a motor 16. When the motor 16 is started, the drill barrel 5 rotates through the meshing bevel gears. The motor 16 is mounted on a mounting plate 3. A connecting plate 4 is integrally formed on one side of the mounting plate 3. A vertical moving mechanism is installed on the connecting plate 4, which drives the mounting plate 3 to move up and down together. A guide sliding mechanism is installed between the support column 1 and the mounting plate 3 to ensure smooth vertical movement.

[0028] The vertical movement mechanism includes a rack 18 mounted on the outer wall of the support column 1. The rack 18 is meshed with a gear, which is connected to the output shaft of a reduction gearbox 17. The reduction gearbox 17 is mounted on the connecting plate 4, and a second motor 19 is mounted on the input shaft of the reduction gearbox 17 via a coupling. When the second motor 19 starts, the gear, under the action of the reduction gearbox 17, decelerates and moves vertically along the rack 18. In this embodiment, both the first motor 16 and the second motor 19 are reversible motors.

[0029] The guide sliding mechanism includes a slide rail installed on the outer wall of the support column 1, and a slider that cooperates with the slide rail is installed on the mounting plate 3.

[0030] The base 2 has symmetrically mounted support legs 9 at both ends of its bottom. A support plate 10 is mounted on the bottom of each support leg 9, and a ground-gripping mechanism is slidably mounted on the bottom of the support plate 10. The ground-gripping mechanism includes a ground-gripping toothed plate 11 located within a groove at the bottom of the support plate 10. A guide rod 12 is mounted at the upper center of the ground-gripping toothed plate 11. The guide rod 12 slidably extends through the support plate 10 and is fitted with a foot pedal 13. A buckle 14 is installed between the foot pedal 13 and the support plate 10. One end of the buckle 14 is rotatably mounted on the support plate 10, and the other end has a positioning hole. A positioning post 15 is slidably mounted within the positioning hole, and a positioning groove is provided on the support plate 10 to mate with the positioning post 15. When not in use, the gripping tooth plate 11 is placed in the groove of the support plate 10 for easy storage and transportation; when needed, by lifting the positioning column 15 and then rotating the buckle 14, it moves downward under its own weight, and finally by stepping on the foot pedal 13, the gripping tooth plate 11 is inserted into the soil to achieve the purpose of gripping and fixing.

[0031] A height adjustment rod 7 is installed at the top of the support column 1, and the left and right height adjustment rods 7 are connected together by a handle 8. The height adjustment rod 7 includes an outer cylinder and an inner rod. Several adjustment holes are provided on the outer cylinder, and a tightening bolt is installed in each adjustment hole, with the end of the tightening bolt abutting against the inner rod. The handle 8 includes a ring 802 located in the middle, with symmetrically mounted hand grips 801 on both sides of the ring 802. A material pushing mechanism is slidably installed within the ring 802.

[0032] The feeding mechanism includes a pressure plate 22 located at the bottom, the outer diameter of which is smaller than the inner diameter of the ring 802; a connecting rod 23 extending upward is installed at the center of the upper end face of the pressure plate 22, and a handle 24 is installed at the other end of the connecting rod 23, the length of which is greater than the inner diameter of the ring 802. After sampling, the sample is pushed out of the drill cylinder 5 by pressing down the handle 24 through the pressure plate 22.

[0033] The working process of this utility model is as follows:

[0034] First, after selecting the sampling site, lift the positioning post 15, then rotate the buckle 14. The gripping mechanism moves downward under its own weight, and the foot pedal 13 is used to insert the gripping tooth plate 11 into the soil. Then, start motor one 16 and motor two 19. The drill barrel 5 cuts through the roots and soil. The soil core gradually enters the drill barrel 5 under the action of gravity, pressure and cutting, and the internal air is discharged from the through hole 6. Then, when the predetermined depth is reached, motor two 19 starts to drive the drill barrel 5 to rotate several times in the reverse direction to cut off the bottom of the soil core, and then starts to rotate in the reverse direction to pull the entire drill barrel 5 vertically upward. Finally, the pushing mechanism is inserted from the top of the drill barrel 5 to push out the complete cylindrical soil core for subsequent analysis.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A tree root sampling device, characterized in that: The system includes symmetrically distributed support pillars (1), with a base (2) at the bottom of each pillar (1). A hole for the drill cylinder (5) to pass through is located at the center of the base (2). The bottom circumference of the drill cylinder (5) is circumferentially distributed with teeth (501) of the same helical direction. A cutter (502) is integrally formed on the sidewall opposite to the helical direction of the teeth (501), with the cutting edge of the cutter (502) facing in the opposite direction to the helical direction of the drill cylinder (5). Several through holes (6) are provided on the upper outer circumference of the drill cylinder (5). A bevel gear ring (21) is provided on the top outer circumference of the drill cylinder (5), meshing with vertically distributed bevel gears (20). A bevel gear (20) is connected to a motor (16), which is mounted on a mounting plate (3). A connecting plate (4) is integrally formed on one side of the mounting plate (3). A vertical moving mechanism is provided on the connecting plate (4). A guide sliding mechanism is provided between the support column (1) and the mounting plate (3). Support legs (9) are symmetrically arranged at the bottom of both ends of the base (2). A support plate (10) is provided at the bottom of the support leg (9). A ground gripping mechanism is slidably provided at the bottom of the support plate (10). A height adjustment rod (7) is provided at the top of the support column (1). The left and right height adjustment rods (7) are connected together by a handle (8).

2. The tree root sampling device according to claim 1, characterized in that: The up-and-down moving mechanism includes a rack (18) disposed on the outer wall of the support column (1), the rack (18) meshing with a gear, the gear being connected to the output shaft of a reduction gearbox (17), the reduction gearbox (17) being disposed on the connecting plate (4), and the input shaft of the reduction gearbox (17) being connected to a motor (19) via a coupling.

3. The tree root sampling device according to claim 1, characterized in that: The guide sliding mechanism includes a slide rail disposed on the outer wall of the support column (1), and a slider that cooperates with the slide rail is disposed on the mounting plate (3).

4. The tree root sampling device according to claim 1, characterized in that: The gripping mechanism includes a gripping toothed plate (11) located in a groove at the bottom of the support plate (10). A guide rod (12) is provided at the center of the upper end of the gripping toothed plate (11). The guide rod (12) is slidably passed through the support plate (10) and a foot pedal (13) is provided thereafter. A buckle (14) is provided between the foot pedal (13) and the support plate (10). One end of the buckle (14) is rotatably provided on the support plate (10), and the other end is provided with a positioning hole. A positioning post (15) is slidably provided in the positioning hole. A positioning groove that cooperates with the positioning post (15) is provided on the support plate (10).

5. The tree root sampling device according to claim 1, characterized in that: The height adjustment rod (7) includes an outer cylinder and an inner rod. The outer cylinder has several adjustment holes, and a tightening bolt is installed in the adjustment hole. The end of the tightening bolt abuts against the inner rod.

6. The tree root sampling device according to claim 1, characterized in that: The handle (8) includes a ring (802) located in the middle, with hand grips (801) symmetrically arranged on both sides of the ring (802), and a pusher mechanism slidably arranged inside the ring (802).

7. The tree root sampling device according to claim 6, characterized in that: The feeding mechanism includes a pressure plate (22) located at the bottom, the outer diameter of which is smaller than the inner diameter of the ring (802); a connecting rod (23) extending upward is provided at the center of the upper end face of the pressure plate (22), and a handle (24) is provided at the other end of the connecting rod (23), the length of which is greater than the inner diameter of the ring (802).

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