Rapid soil sampling device

Abstract

The utility model discloses a soil rapid sampling device, including drill rod and drill bit, and drill rod is connected with drill bit still includes rotating part and pressure platform, and the end of drill rod is on pressure platform, and pressure platform applies the pressure to drill bit through drill rod towards formation and makes drill bit enter formation, and drill rod passes through rotating part, and rotating part is driven to be connected with drill rod, and rotating part drives drill rod and drill bit rotate along the axis. Compared with traditional arm strength to add the mode of down pressure, leg strength is stronger, and the body weight is coordinated, and can increase the down pressure, and is supplemented with drill rod rotation, improves the sampling speed, and the labor greatly reduces, secondly, through the leg pressure, and the gravity center is lower, and the body does not need to incline the body, guarantees the stability of the body itself, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of soil testing technology. Specifically, it relates to a rapid soil sampling device. Background Technology

[0002] Soil testing requires outdoor sampling. For small-scale sampling, semi-automatic or manual tools are typically used. Manual tools generally consist of a drill bit, drill rod, and handle. When using them, the drill bit is placed against the ground, the handle is held with both hands, and rotational force is applied. To increase downward pressure, the operator shifts their body weight. The downward pressure of the drill bit is related to the pressure applied by the arms. The operator needs to maintain body stability, ensure the sampling tool is perpendicular and stable to the ground, and apply rotational force, making it relatively strenuous. Semi-automatic tools use external power to drive the drill bit. The operator needs to support the power unit and stabilize the drill rod, drill bit, and other related components, which reduces the workload to some extent. However, when encountering hard soil layers, manual downward pressure is still required, and there is still a degree of instability. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a rapid soil sampling device that can use body weight to apply downward pressure to reduce labor and has high stability.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a rapid soil sampling device, including a drill rod and a drill bit, wherein the drill rod is connected to the drill bit, the end of the drill rod rests on the pressure platform, the pressure platform applies pressure toward the formation to the drill bit through the drill rod, causing the drill bit to enter the formation, the drill rod passes through the rotating component, the rotating component is drivenly connected to the drill rod, and the rotating component drives the drill rod and the drill bit to rotate along the axis.

[0005] In the aforementioned rapid soil sampling device, the pressure platform is connected to a guide structure, which is supported on the ground and guides the pressure platform to move in a straight line toward the ground.

[0006] The aforementioned rapid soil sampling device has a base on the ground, and the end of the guide rod is detachably and fixedly connected to the base.

[0007] The aforementioned rapid soil sampling device includes a guide rod as the guiding structure, and a pressure platform is slidably fitted onto the guide rod.

[0008] The aforementioned rapid soil sampling device includes a pressure platform comprising a pedal with sliding holes at both ends of the pedal surface, the pedal being slidably engaged with the guide rod through the sliding holes.

[0009] In the aforementioned rapid soil sampling device, the end of the drill rod rests on the pedal, the pedal provides downward pressure by stepping on it, and the pedal surface has anti-slip texture.

[0010] In the aforementioned rapid soil sampling device, a rotatable rotating plate is provided at the bottom of the pedal surface, an end face bearing is provided between the rotating plate and the pedal, and a groove matching the end of the drill rod is provided at the center of the rotating plate, with the end of the drill rod inserted into the groove.

[0011] In the aforementioned rapid soil sampling device, the rotating component is mounted on a base, and the center of the base is designed with a through hole for the drill rod and the drill bit to pass through.

[0012] The aforementioned rapid soil sampling device includes a rotating component comprising a base plate, a positioning sleeve, and an outer gear ring. The positioning sleeve is fixed to the surface of the base plate, and a circular hole is provided on the base plate. An annular mounting space exists between the positioning sleeve and the base plate. The outer gear ring is rotatably mounted within the annular mounting space, and both sides of the outer gear ring are rotatably engaged with the positioning sleeve and the base plate, respectively. The inner diameter of the outer gear ring is smaller than the inner diameter of the circular hole on the base plate. A transmission key is radially fixed on the inner ring surface of the outer gear ring, and a drive gear meshes with the outer gear ring.

[0013] In the aforementioned rapid soil sampling device, a transmission groove matching the transmission key is formed along the axial direction on the surface of the drill rod.

[0014] The technical solution of this utility model has achieved the following beneficial technical effects:

[0015] Compared to the traditional method of applying downward pressure using arm strength, firstly, the leg strength, combined with body weight, increases downward pressure. This, along with the rotation of the drill rod, increases sampling speed and significantly reduces workload. Secondly, applying pressure through the legs lowers the center of gravity, eliminating the need for body tilting and improving stability and safety. Thirdly, the stability of the drill bit and drill rod is greatly enhanced. Since gravity is inherently vertically downward when stepping, the guide rod further improves stability, allowing the drill bit and drill rod to sample steadily downwards. The rotating plate, rotating components, and the ground form three stable support points, ensuring the drill bit and drill rod remain aligned. This not only guarantees sampling stability but also, due to the high coaxiality, reduces the increased friction caused by misalignment between the drill bit / drill rod and the borehole, thus reducing resistance.

[0016] The rotating components provide the driving force at the bottom. Compared to traditional drill pipe end-drive methods, the heavier structure is located closer to the ground. This structure improves drill pipe stability and lowers the center of gravity of the sampling device. Compared to automated structures, the structure is simplified and eliminates the need for pressure supply components. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the soil rapid sampling device of this utility model;

[0018] Figure 2 A frontal cross-sectional structural diagram of the soil rapid sampling device of this utility model;

[0019] Figure 3 A schematic diagram of the drill rod and drill bit of the soil rapid sampling device of this utility model;

[0020] Figure 4 A schematic diagram of the meshing of the drive gear and the external gear ring in this utility model's rapid soil sampling device.

[0021] The reference numerals in the figure are as follows: 1-base; 2-rotating component; 21-base plate; 22-positioning pressure sleeve; 23-external gear ring; 24-transmission key; 3-pressure platform; 31-rotating plate; 32-guide rod; 33-pedal; 4-drive gear; 5-drill rod; 51-transmission groove; 6-drill bit. Detailed Implementation

[0022] The rapid soil sampling device in this embodiment, such as Figure 1-2 As shown, the system includes a drill rod 5, a drill bit 6, a rotating component 2, a pressure platform 3, a guide structure connection, and a base 1. The drill rod 5 is connected to the drill bit 6, and the end of the drill rod 5 rests on the pressure platform 3. The pressure platform 3 applies pressure to the drill bit 6 towards the formation through the drill rod 5, causing the drill bit 6 to enter the formation. The drill rod 5 passes through the rotating component 2, which is driven to connect with the drill rod 5. The rotating component 2 drives the drill rod 5 and the drill bit 6 to rotate along the axis.

[0023] like Figure 1-2 As shown, the base 1 is set on the ground to provide stability. The base 1 is a hollow truncated cone. The end of the guide structure is detachably and fixedly connected to the base 1. The pressure platform 3 is connected to the guide structure. Under the guidance of the guide structure, the pressure platform 3 moves in a straight line toward the ground. The rotating component 2 is installed on the base 1. The center of the base 1 is designed with a through hole for the drill rod 5 and the drill bit 6 to pass through. The height of the base 1 is greater than or equal to the length of the drill bit 6, so the base 1 can accommodate the drill bit 6. An opening can be opened on the side of the base 1 to facilitate the removal and placement of the drill bit into the base.

[0024] like Figure 1-2As shown, the guide structure includes four guide rods 32, and the pressure platform 3 includes a pedal 33. Sliding holes are provided at both ends of the pedal 33. The pedal 33 slides on the guide rods 32, and the ends of the two guide rods 32 on one side are fixed by connecting plates. The drill bit is installed inside the base 1 and faces the ground. The drill rod passes through the rotating component 2 and is connected to it via transmission. The end of the drill rod 5 rests on the pedal 33, providing downward pressure by stepping on the pedal 33. The pedal 33 has anti-slip textures on its surface. The rotating component 2 is powered manually or electrically. The guide rods 32 are threadedly connected to the base.

[0025] like Figure 2 As shown, in order to ensure the stability of the drill rod end when it is pressed down by the pedal 33, a rotatable rotating plate 31 is provided at the bottom of the plate surface of the pedal 33. An end face bearing is provided between the rotating plate 31 and the pedal 33. A groove matching the end of the drill rod 5 is provided at the center of the rotating plate 31. The end of the drill rod 5 is inserted into the groove to avoid lateral sliding.

[0026] like Figure 1-2 As shown, the rotating component 2 includes a base plate 21, a positioning sleeve 22, and an external gear ring 23. The positioning sleeve 22 is fixed to the surface of the base plate 21. A circular hole is provided on the base plate 21. An annular mounting space exists between the positioning sleeve 22 and the base plate 21. The external gear ring 23 is rotatably mounted within the annular mounting space, and its two sides are rotatably engaged with the positioning sleeve 22 and the base plate 21, respectively. The inner diameter of the external gear ring 23 is smaller than the inner diameter of the circular hole on the base plate 21. A transmission key 24 is radially fixed on the inner annular surface of the external gear ring 23. Figure 3 As shown, a transmission groove 51 matching the transmission key 24 is provided axially on the surface of the drill rod 5. The drill rod 5 passes through the outer gear ring 23 and is locked in the transmission groove 51 by the transmission key 24. The rotation of the outer gear ring 23 provides rotation for the drill rod 5. The outer gear ring 23 is engaged with a drive gear 4. The drive gear 4 is connected to a motor or other rotational power drive, or a drive rod is coaxially connected to the drive gear 4. A handle is provided at the end of the drive rod. The drive rod extends upward to a height that is convenient for manual operation. By stepping down, the drive rod is manually rotated to drive the outer gear ring 23 and the drill rod 5 to rotate, which has a simpler and lighter structure.

[0027] In practical application, the drill rod 5 is connected to the drill bit 6, and then the drill rod is passed through the external gear ring 23. At the same time, the transmission key 24 is inserted into the transmission groove 51. This process can be carried out by first placing the drill bit into the base 1, then placing the base, and then passing the drill rod through the top of the base to connect with the drill bit, or by first connecting the drill bit and the drill rod, passing the drill rod through the rotating part 2 from the bottom of the base, and then placing the base.

[0028] Then, push the pedal 33 to insert the end of the drill rod into the slot of the rotating plate 31. Step on the pedal 33 and use your body weight to press down on it. The drill rod pushes the drill bit into the soil to take samples. Compared with the traditional method of applying pressure with arm strength, this method has several advantages. First, the leg strength is stronger, which, combined with the body weight, increases the downward pressure. With the rotation of the drill rod, the sampling speed is increased, and the workload is greatly reduced. Second, by applying pressure with the legs, the center of gravity is lower, and the body does not need to tilt, resulting in higher stability and improved safety. Third, the stability of the drill bit and drill rod is greatly improved. Since the direction of gravity is vertically downward when stepping, the guide rod 32 further improves stability, allowing the drill bit and drill rod to sample steadily downward. The rotating plate 31, the rotating component 2, and the ground form three stable support points, ensuring that the drill bit and drill rod are always in a straight line. This not only ensures the stability of the sampling, but also reduces the increase in friction caused by the misalignment of the drill bit and drill rod with the borehole due to the high coaxiality, thus reducing resistance.

[0029] After a single sampling is completed, the drill bit 6 is lifted by the drill rod 5, and then the soil sample inside the drill bit 6 is taken out. If deeper sampling is required, an additional section of the drill rod is connected to the original length of the drill rod to continue sampling until the required sample is obtained.

[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A rapid soil sampling device, comprising a drill rod (5) and a drill bit (6), wherein the drill rod (5) is connected to the drill bit (6), characterized in that, It also includes a rotating component (2) and a pressure platform (3). The end of the drill rod (5) rests on the pressure platform (3). The pressure platform (3) applies pressure toward the formation to the drill bit (6) through the drill rod (5), causing the drill bit (6) to enter the formation. The drill rod (5) passes through the rotating component (2). The rotating component (2) is driven to connect with the drill rod (5). The rotating component (2) drives the drill rod (5) and the drill bit (6) to rotate along the axis.

2. The rapid soil sampling device according to claim 1, characterized in that, The pressure platform (3) is connected to the guide structure, which is supported on the ground and guides the pressure platform (3) to move in a straight line toward the ground.

3. The rapid soil sampling device according to any one of claims 1-2, characterized in that, A base (1) is provided on the ground, and the end of the guide rod (32) is detachably and fixedly connected to the base (1).

4. The rapid soil sampling device according to claim 3, characterized in that, The guide structure includes a guide rod (32), and a pressure platform (3) is slidably fitted on the guide rod (32).

5. The rapid soil sampling device according to claim 4, characterized in that, The pressure platform (3) includes a pedal (33), and sliding holes are provided on both ends of the pedal (33). The pedal (33) slides on the guide rod (32) through the sliding holes.

6. The rapid soil sampling device according to claim 5, characterized in that, The end of the drill rod (5) rests on the pedal (33), which provides downward pressure by stepping on it, and the pedal (33) has anti-slip texture on its surface.

7. The rapid soil sampling device according to claim 6, characterized in that, The bottom of the pedal (33) is provided with a rotatable rotating plate (31). An end face bearing is provided between the rotating plate (31) and the pedal (33). The center of the rotating plate (31) is provided with a groove that matches the end of the drill rod (5). The end of the drill rod (5) is inserted into the groove.

8. The rapid soil sampling device according to claim 3, characterized in that, The rotating component (2) is mounted on the base (1), and the center of the base (1) is designed with a through hole for the drill rod (5) and the drill bit (6) to pass through.

9. The rapid soil sampling device according to claim 1, characterized in that, The rotating component (2) includes a base plate (21), a positioning sleeve (22), and an external gear ring (23). The positioning sleeve (22) is fixed on the surface of the base plate (21). A circular hole is provided on the base plate (21). There is an annular mounting space between the positioning sleeve (22) and the base plate (21). The external gear ring (23) is rotatably installed in the annular mounting space. The two sides of the external gear ring (23) are respectively rotatably engaged with the positioning sleeve (22) and the base plate (21). The inner diameter of the external gear ring (23) is smaller than the inner diameter of the circular hole on the base plate (21). A transmission key (24) is fixed radially on the inner ring surface of the external gear ring (23). The external gear ring (23) meshes with a drive gear (4).

10. The rapid soil sampling device according to claim 9, characterized in that, The drill rod (5) has a transmission groove (51) that matches the transmission key (24) along the axial direction on its surface.

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