Soil detection sampling device

Abstract

The utility model discloses a soil detection sampling device which comprises a sampling drill bit, an extension rod installed at the top end of the sampling drill bit and a sampling handle fixedly connected to the top end of the extension rod, a sliding hinge seat and a rocking handle are movably inserted into one end of the sampling handle, and a fixed baffle is fixedly connected into the sampling handle. The sliding hinge seat is located between the fixed baffle and the rocking handle, and a reset tension spring is installed between the fixed baffle and the sliding hinge seat. A user steps on the pedal and holds the limiting handle by hand, the sampling drill bit can be ensured to be vertical and fixed in position, the quality of a sample is ensured, the sampling drill bit can be pushed downwards under the action of the guide screw and the internal thread sleeve by hand rocking the rocking handle, and sampling of soil with higher hardness is also very labor-saving; when hard stones exist below the sampling drill bit, resistance borne by the hand-cranked rocking handle can be increased suddenly, sampling at the current position can be stopped in time, the sampling drill bit is protected, in addition, the rocking handle and the pedal can be folded and stored, and carrying and using are convenient.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, specifically a soil testing and sampling device. Background Art

[0002] A soil drill is a commonly used soil sampling device. It is inserted or screwed into the ground to collect soil samples through the internal cavity of the drill bit. Existing soil drills come in different lengths to collect soil samples from different depths.

[0003] Commonly used soil drills mainly include the following three types: The simplest type relies on manual pressing of the sampling handle to drive the drill bit into the ground. This type is inconvenient and requires considerable effort when used on slightly harder soils. Another type is a simple soil drill with a hammer at the top. However, if there are hard rocks below the drill bit, it can mislead the striking force and damage the drill bit. A third type uses a hollow auger drill bit with a horizontal ratchet sampling handle. The drill bit is driven into the ground by swinging the sampling handle back and forth. However, this swinging motion easily causes the drill bit to wobble, making it difficult to ensure its verticality. This leads to sampling position deviation, and the soil near the sampling location is broken up and mixed, resulting in poor sample quality. In view of the shortcomings of commonly used soil testing and sampling drills, a simple and easy-to-use soil testing and sampling device is designed and proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a soil testing and sampling device to solve the problems of laborious use, easy damage to the drill bit, and soil mixing affecting sample quality that are common in current soil testing and sampling methods.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A soil testing and sampling device includes a sampling drill bit, an extension rod installed at the top of the sampling drill bit, and a sampling handle fixedly connected to the top of the extension rod. A sliding hinge seat and a crank handle are movably inserted into one end of the sampling handle. A fixed baffle is fixedly connected inside the sampling handle. The sliding hinge seat is located between the fixed baffle and the crank handle. A return spring is installed between the fixed baffle and the sliding hinge seat.

[0007] The crank handle is movably hinged to the sliding hinge seat via a hinge shaft, and a stop baffle supporting the end of the sampling handle is fixedly connected to one end of the crank handle located outside the sampling handle. A pull ring is fixedly connected to the stop baffle, and a limit handle is rotatably connected to the surface of the extension rod near the top.

[0008] The extension rod has a guide screw on its surface below the limit handle. The surface of the extension rod corresponding to the guide screw is movably fitted with an internal threaded sleeve that is threadedly connected to the guide screw. The lower end of the internal threaded sleeve is fixedly connected to a pressure plate that is movably fitted outside the extension rod and the guide screw. A pressure rod is movably hinged to the pressure plate. A pedal is fixedly connected to the end of the pressure rod that is away from the pressure plate.

[0009] Preferably, the outer diameter of the guide spiral is smaller than the outer diameter of the sampling drill bit.

[0010] Preferably, the distance between the end of the rocker handle near the reset spring and the hinge shaft is greater than the radius of the sampling handle.

[0011] Preferably, a fixed hinge seat is fixedly connected to the pressure plate, and the fixed hinge seat is located on the pressure plate near the center.

[0012] Preferably, the internal threaded sleeve is fixedly connected with a Velcro strap.

[0013] Preferably, the upper surface of the pedal is provided with anti-slip texture, and when the pressure rod is unfolded, the lower surface of the pedal and the lower surface of the pressure plate are on the same horizontal plane.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention ensures the sampling drill bit remains vertical and in a fixed position by using a foot pedal and a hand-held limiting handle, thus guaranteeing sample quality. The hand crank can push the sampling drill bit downwards through the action of the guide screw and the internal threaded sleeve, making sampling even in slightly harder soils much easier. When there are hard rocks below the sampling drill bit, the resistance to the hand crank will suddenly increase, allowing for timely stopping of sampling at the current position and protecting the sampling drill bit. In addition, both the crank and the foot pedal can be folded for easy carrying and use. This invention has a simple structure, making it easy to manufacture and promote. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure at the corresponding position of the internal threaded sleeve of this utility model;

[0018] Figure 3 This is a top view of the structure at the corresponding position of the internal threaded sleeve of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the sampling handle at the corresponding position of this utility model;

[0020] Figure 5This is a schematic diagram of the internal structure of the sampling handle at the corresponding position after the crank handle of this utility model is folded and stored.

[0021] In the diagram: 1. Sampling drill bit; 2. Extension rod; 3. Sampling handle; 4. Sliding hinge seat; 5. Crank handle; 6. Fixed baffle; 7. Return spring; 8. Hinge shaft; 9. Stop baffle; 10. Pull ring; 11. Limit handle; 12. Guide screw; 13. Internal threaded sleeve; 14. Pressure plate; 15. Pressure rod; 16. Pedal; 17. Fixed hinge seat; 18. Velcro cable tie. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-5 As shown, this utility model provides a technical solution: a soil testing and sampling device, including a sampling drill bit 1, an extension rod 2 installed at the top of the sampling drill bit 1, and a sampling handle 3 fixedly connected to the top of the extension rod 2. A sliding hinge seat 4 and a rocker arm 5 are movably inserted into one end of the sampling handle 3. A fixed baffle 6 is fixedly connected inside the sampling handle 3. The sliding hinge seat 4 is located between the fixed baffle 6 and the rocker arm 5. A reset spring 7 is installed between the fixed baffle 6 and the sliding hinge seat 4.

[0024] The crank handle 5 is movably hinged to the sliding hinge seat 4 via the hinge shaft 8. The distance between the end of the crank handle 5 near the reset spring 7 and the hinge shaft 8 is greater than the radius of the sampling handle 3, so that the crank handle 5 can be stuck at the end of the sampling handle 3 when it is unfolded. The end of the crank handle 5 located outside the sampling handle 3 is fixedly connected to a stop baffle 9 supported at the end of the sampling handle 3. A pull ring 10 is fixedly connected to the stop baffle 9. The surface of the extension rod 2 near the top end is rotatably connected to a limit handle 11.

[0025] The extension rod 2 is provided with a guide spiral 12 on its surface below the limit handle 11. The outer diameter of the guide spiral 12 is smaller than the outer diameter of the sampling drill bit 1, ensuring that the guide spiral 12 will not scrape the soil on the side wall of the borehole when the extension rod 2 extends into the borehole. The surface of the extension rod 2 corresponding to the position of the guide spiral 12 is movably sleeved with an internal threaded sleeve 13 that is threadedly connected to the guide spiral 12. The lower end of the internal threaded sleeve 13 is fixedly connected with a pressure plate 14 that is movably sleeved on the outside of the extension rod 2 and the guide spiral 12.

[0026] A pressure rod 15 is movably hinged to the pressure plate 14, and a fixed hinge seat 17 is fixedly connected to the pressure plate 14. The fixed hinge seat 17 is located on the pressure plate 14 near the center, so that the pressure rod 15 can press down on the pressure plate 14. A pedal 16 is fixedly connected to the end of the pressure rod 15 away from the pressure plate 14. The upper surface of the pedal 16 is provided with anti-slip texture. When the pressure rod 15 is unfolded, the lower surface of the pedal 16 is at the same level as the lower surface of the pressure plate 14. When the user steps on the pedal 16, the pressure plate 14 can be restricted to the ground. A Velcro strap 18 is fixedly connected to the internal threaded sleeve 13 for binding the folded and stored pressure rod 15 and pedal 16.

[0027] Working principle:

[0028] When not in use, the pressure bar 15 and pedal 16 can be flipped up and folded, and then tied and stored with Velcro straps 13. The crank handle 5 can be pulled and flipped back into the sampling handle 3 for storage, reducing the overall volume and making it convenient for storage and transportation.

[0029] When in use, press down the sampling handle 3 to insert the sampling drill bit 1 into the ground. Hold the limit handle 11 and one person can step on one pedal 16 or two people can each step on one pedal 16 to ensure that the sampling drill bit 1 and the extension rod 2 remain vertical. By shaking the extension rod 2 with the crank handle 5, soil can be taken from a deeper location below the ground under the action of the guide screw 12 and the internal threaded sleeve 13.

[0030] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil testing and sampling device, comprising a sampling drill bit (1), an extension rod (2) mounted on the top of the sampling drill bit (1), and a sampling handle (3) fixedly connected to the top of the extension rod (2), characterized in that: The sampling handle (3) has a sliding hinge seat (4) and a rocker arm (5) movably inserted into one end. The sampling handle (3) has a fixed baffle (6) fixedly connected inside. The sliding hinge seat (4) is located between the fixed baffle (6) and the rocker arm (5). A reset spring (7) is installed between the fixed baffle (6) and the sliding hinge seat (4). The crank (5) is movably hinged to the sliding hinge seat (4) via the hinge shaft (8), and the end of the crank (5) located outside the sampling handle (3) is fixedly connected to a stop baffle (9) supported at the end of the sampling handle (3). A pull ring (10) is fixedly connected to the stop baffle (9), and a limit handle (11) is rotatably connected to the surface of the extension rod (2) near the top. The extension rod (2) has a guide screw (12) on its surface below the limit handle (11). The extension rod (2) has an internal threaded sleeve (13) that is threadedly connected to the guide screw (12) on its surface corresponding to the guide screw (12). The lower end of the internal threaded sleeve (13) is fixedly connected to a pressure plate (14) that is movably sleeved on the extension rod (2) and the guide screw (12). A pressure rod (15) is movably hinged on the pressure plate (14). A pedal (16) is fixedly connected to one end of the pressure rod (15) away from the pressure plate (14).

2. The soil testing and sampling device according to claim 1, characterized in that: The outer diameter of the guide spiral (12) is smaller than the outer diameter of the sampling drill bit (1).

3. The soil testing and sampling device according to claim 1, characterized in that: The distance between the end of the rocker handle (5) near the reset spring (7) and the hinge shaft (8) is greater than the radius of the sampling handle (3).

4. The soil testing and sampling device according to claim 1, characterized in that: A fixed hinge seat (17) is fixedly connected to the pressure plate (14), and the fixed hinge seat (17) is located on the pressure plate (14) near the center.

5. A soil testing and sampling device according to claim 1, characterized in that: The internal threaded sleeve (13) is fixedly connected with a Velcro cable tie (18).

6. A soil testing and sampling device according to claim 1, characterized in that: The upper surface of the pedal (16) is provided with anti-slip texture, and when the pressure bar (15) is unfolded, the lower surface of the pedal (16) and the lower surface of the pressure plate (14) are on the same horizontal plane.

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