Soil sampling and screening device
By designing a soil sampling and screening device that combines a three-pronged frame and a screening cylinder, the problem of the inability to screen on-site in existing technologies has been solved, enabling soil screening at the drilling sampling site and improving portability and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGHE LVYUAN DETECTION TECH (CHONGQING) CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, soil samples need to be taken back to the laboratory for sieving, and it is not possible to sieve them on-site using portable sieving devices.
A soil sampling and screening device was designed, comprising a three-pronged base frame, stabilizing components, a container, a screening cylinder, and a docking component. The device achieves layer-by-layer screening of soil by assembling and rotating the screening cylinder, and is integrated into the drilling and sampling site for screening.
It enables on-site soil sieving during drilling, eliminating the need to bring the soil back to the laboratory for sieving, and improving portability and on-site sieving efficiency.
Smart Images

Figure CN224208542U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil sampling and screening technology, and specifically relates to a soil sampling and screening device. Background Technology
[0002] Soil analysis is the qualitative and quantitative determination of the composition and / or physical and chemical properties of soil. It is the foundation for research on soil formation and development, fertility evolution, soil resource evaluation, soil improvement and rational fertilization. It is also an important means of environmental quality assessment in environmental science. Soil sampling is required before soil testing.
[0003] Currently, after drilling and sampling the soil, the soil samples will contain a lot of root matter, stones and other impurities. Therefore, the soil samples need to be taken back to the laboratory and screened using a special screening machine, rather than being screened on-site using a portable screening device. Utility Model Content
[0004] Based on the problems mentioned in the background art above, this utility model provides a soil sampling and screening device to solve the problem that after taking out soil samples, they need to be taken back to the laboratory for screening using a dedicated screening machine, rather than being able to be screened on-site using a portable screening device.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A soil sampling and screening device, comprising:
[0007] A three-pronged base frame, on which multiple stabilizing components are arranged in an array from top to bottom, wherein the stabilizing component at the bottom is fixedly mounted on the three-pronged base frame, and the remaining stabilizing components can be slidably mounted on the three-pronged base frame;
[0008] A container, which is placed inside the bottommost stabilizing member;
[0009] A primary screening cylinder, a secondary screening cylinder, and a tertiary screening cylinder are provided. The primary screening cylinder, the secondary screening cylinder, and the tertiary screening cylinder are sequentially stacked on a three-pronged base frame via corresponding sliding stable components. The primary screening cylinder is located above the container cylinder, the secondary screening cylinder is located above the primary screening cylinder, and the tertiary screening cylinder is located above the secondary screening cylinder.
[0010] The docking components are provided in multiple ways, and are respectively disposed between the holding cylinder and the primary screening cylinder, between the primary screening cylinder and the secondary screening cylinder, and between the secondary screening cylinder and the tertiary screening cylinder;
[0011] A cover assembly is provided on the top of the three-pronged base frame and resists the top of the three-stage screening cylinder.
[0012] Based on the above technical solution, the present invention has made the following improvements:
[0013] Furthermore, the stabilizing component includes a stabilizing ring, which is mounted on a triangular base frame. The top of the stabilizing ring is rotatably equipped with multiple load-bearing rollers, and the inner peripheral wall of the stabilizing ring is rotatably equipped with multiple limiting rollers.
[0014] Furthermore, the docking component includes a flange platform and an outer expansion plate. The flange platform is provided on the outer peripheral wall of the primary screening cylinder, the secondary screening cylinder, and the tertiary screening cylinder. Multiple locking posts are arranged in an array at the bottom of the flange platform. The outer expansion plate is provided on the top of the holding cylinder, the primary screening cylinder, the secondary screening cylinder, and the tertiary screening cylinder. Multiple locking holes are arranged in an array on the outer expansion plate, and the locking posts are locked in the corresponding locking holes.
[0015] Furthermore, the first-stage screening cylinder is equipped with a first-stage filter plate inside, and a first-stage discharge port is provided at the bottom of the first-stage screening cylinder; the second-stage screening cylinder is equipped with a second-stage filter plate inside, and a second-stage discharge port is provided at the bottom of the second-stage screening cylinder; the third-stage screening cylinder is equipped with a third-stage filter plate inside, and a third-stage discharge port is provided at the bottom of the third-stage screening cylinder; the filter pore diameter on the first-stage filter plate is smaller than the filter pore diameter on the second-stage filter plate, and the filter pore diameter on the second-stage filter plate is smaller than the filter pore diameter on the third-stage filter plate.
[0016] Furthermore, a handle is provided around the outer edge of the three-stage screening cylinder.
[0017] Furthermore, the cover component includes a three-pronged fastener, which is fitted onto the top of the three-pronged base frame. A cover is provided at the bottom center of the three-pronged fastener, and the cover is fastened to the top opening of the three-stage screening cylinder.
[0018] The beneficial effects of this utility model are:
[0019] 1. By combining a three-pronged base frame, various stabilizing components, a container cylinder, a primary screening cylinder, a secondary screening cylinder, a tertiary screening cylinder, and various connecting components, the container cylinder, the primary screening cylinder, the secondary screening cylinder, and the tertiary screening cylinder are assembled on the three-pronged base frame using the stabilizing components. Under the action of the connecting components, the container cylinder, the primary screening cylinder, the secondary screening cylinder, and the tertiary screening cylinder are connected sequentially. Then, by pouring the sampled soil into the tertiary screening cylinder and holding the handle to rotate the tertiary screening cylinder, the container cylinder, the primary screening cylinder, the secondary screening cylinder, and the tertiary screening cylinder rotate together under the action of the connecting components. During the rotation, the soil is screened layer by layer through the tertiary screening cylinder, the secondary screening cylinder, and the primary screening cylinder and collected in the container cylinder. Ultimately, this allows the soil sampled at the drilling sampling site to be screened without having to bring it back to the laboratory for screening.
[0020] 2. With the addition of a cover component, the cover component can be installed on the top of the three-pronged base frame during the screening process, causing the cover in the cover component to cover the top opening of the three-stage screening cylinder, thereby preventing the soil sample inside the three-stage screening cylinder from being thrown out during the screening process. Attached Figure Description
[0021] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0022] Figure 1 This is a structural diagram of a soil sampling and screening device according to the present invention;
[0023] Figure 2 This is a cross-sectional view of a soil sampling and screening device according to the present invention;
[0024] Figure 3 This is a structural diagram of some components in a soil sampling and screening device according to the present invention;
[0025] Figure 4 This is an exploded view of some components in a soil sampling and screening device according to the present invention.
[0026] The attached diagram is labeled as follows:
[0027] 101. Trident base frame; 201. Stabilizing ring; 202. Bearing roller; 203. Limiting roller; 301. Container cylinder; 401. Primary screening cylinder; 402. Primary filter plate; 403. Primary discharge port; 501. Secondary screening cylinder; 502. Secondary filter plate; 503. Secondary discharge port; 601. Tertiary screening cylinder; 602. Tertiary filter plate; 603. Tertiary discharge port; 701. Flange platform; 702. Locking post; 703. Outer extension plate; 704. Locking hole; 801. Handle; 901. Trident buckle frame; 902. Cover. Detailed Implementation
[0028] like Figures 1-4 As shown, a soil sampling and screening device includes:
[0029] The triangular base 101 has multiple stabilizing components arranged in an array from top to bottom. The stabilizing component at the bottom is fixedly mounted on the triangular base 101, while the other stabilizing components can be slidably mounted on the triangular base 101.
[0030] A container 301 is placed inside the bottommost stabilizing component; a primary screening cylinder 401, a secondary screening cylinder 501, and a tertiary screening cylinder 601 are sequentially stacked on a triangular base frame 101 via corresponding slidable stabilizing components. The stabilizing component includes a stabilizing ring 201, which is set on the triangular base frame 101. The stabilizing ring 201 at the bottommost end is fixedly set on the triangular base frame 101, while the other stabilizing rings 201 are slidably sleeved on the triangular base frame 101. The top of the stabilizing ring 201 is rotatably equipped with multiple bearing rollers 202, and the inner peripheral wall of the stabilizing ring 201 is rotatably equipped with multiple limiting rollers 203.
[0031] The assembly includes multiple docking components, which are respectively positioned between the holding cylinder 301 and the primary screening cylinder 401, between the primary screening cylinder 401 and the secondary screening cylinder 501, and between the secondary screening cylinder 501 and the tertiary screening cylinder 601. Each docking component includes a flange platform 701 and an outer extension plate 703. A flange platform 701 is provided on the outer peripheral wall of each of the primary screening cylinder 401, secondary screening cylinder 501, and tertiary screening cylinder 601. Multiple locking posts 702 are arranged in an array at the bottom of the flange platform 701. An outer extension plate 703 is provided on the top of each of the holding cylinder 301, primary screening cylinder 401, secondary screening cylinder 501, and tertiary screening cylinder 601. Multiple locking holes 704 are arranged in an array on the outer extension plate 703, and the locking posts 702 are locked in the corresponding locking holes 704.
[0032] During assembly, the container 301 is first placed in the bottommost stabilizing ring 201, and the outer plate 703 at the top of the container 301 is placed on the corresponding bearing roller 202. The peripheral sidewall is restricted between each limiting roller 203, so that the container 301 is stably placed in the bottommost stabilizing ring 201.
[0033] Then, the primary screening cylinder 401, the secondary screening cylinder 501, and the tertiary screening cylinder 601 are placed inside the slidable stabilizing ring 201, and the outer plates 703 at the top of the primary screening cylinder 401, the secondary screening cylinder 501, and the tertiary screening cylinder 601 are placed on the corresponding bearing rollers 202. The side walls are restricted between the limiting rollers 203, so that the primary screening cylinder 401, the secondary screening cylinder 501, and the tertiary screening cylinder 601 are placed inside the slidable stabilizing ring 201. Then, each slidable stabilizing ring 201 is sequentially put onto the three-pronged base frame 101, so that the primary screening cylinder 401 is above the container cylinder 301, the secondary screening cylinder 501 is above the primary screening cylinder 401, and the tertiary screening cylinder 601 is above the secondary screening cylinder 501.
[0034] Furthermore, when the primary screening cylinder 401 is located above the container cylinder 301, the locking pin 702 on the primary screening cylinder 401 can be locked into the locking hole 704 on the container cylinder 301; when the secondary screening cylinder 501 is located above the primary screening cylinder 401, the locking pin 702 on the secondary screening cylinder 501 can be locked into the locking hole 704 on the primary screening cylinder 401; when the tertiary screening cylinder 601 is located above the secondary screening cylinder 501, the locking pin 702 on the tertiary screening cylinder 601 can be locked into the locking hole 704 on the secondary screening cylinder 501, thereby realizing the connection and assembly of the container cylinder 301, the primary screening cylinder 401, the secondary screening cylinder 501, and the tertiary screening cylinder 601 together;
[0035] The primary screening cylinder 401 has a primary filter plate 402 inside and a primary discharge port 403 at its bottom; the secondary screening cylinder 501 has a secondary filter plate 502 inside and a secondary discharge port 503 at its bottom; the tertiary screening cylinder 601 has a tertiary filter plate 602 inside and a tertiary discharge port 603 at its bottom; the filter aperture on the primary filter plate 402 is smaller than that on the secondary filter plate 502, and the filter aperture on the secondary filter plate 502 is smaller than that on the tertiary filter plate 602; a handle 801 is provided around the outer plate 703 of the tertiary screening cylinder 601 to facilitate rotation of the tertiary screening cylinder 601;
[0036] The cover component is set on the top of the three-pronged base 101. The cover component includes a three-pronged fastener 901, which is fitted on the top of the three-pronged base 101. A cover 902 is set at the bottom center of the three-pronged fastener 901, and the cover 902 is fastened to the top opening of the three-stage screening cylinder 601.
[0037] After the filling cylinder 301, primary screening cylinder 401, secondary screening cylinder 501, and tertiary screening cylinder 601 are connected and assembled, the sampled soil is poured into the tertiary screening cylinder 601. Then, the three-pronged buckle 901 is fitted onto the top of the three-pronged base frame 101, causing the cap 902 to engage with the top opening of the tertiary screening cylinder 601. Then, by holding the handle 801 and rotating the tertiary screening cylinder 601, the filling cylinder 301, primary screening cylinder 401, secondary screening cylinder 501, and tertiary screening cylinder 601 are connected and assembled. The screening cylinder 501 and the three-stage screening cylinder 601 rotate together. During the rotation, the soil is filtered and screened through the three-stage filter plate 602 on the three-stage screening cylinder 601, the two-stage filter plate 502 on the two-stage screening cylinder 501, and the first-stage filter plate 402 on the first-stage screening cylinder 401. The filtered soil falls from the first-stage discharge port 403 into the collection cylinder 301, thus enabling the soil to be screened at the drilling sampling site without having to be brought back to the laboratory for screening.
[0038] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
Claims
1. A soil sampling and screening device, characterized in that: include: A triangular base frame (101) is provided with multiple stabilizing components arranged in an array from top to bottom. The stabilizing component at the bottom is fixedly mounted on the triangular base frame (101), and the remaining stabilizing components can be slidably mounted on the triangular base frame (101). A container (301) is placed inside the bottommost stabilizing member; A primary screening cylinder (401), a secondary screening cylinder (501), and a tertiary screening cylinder (601) are provided. The primary screening cylinder (401), the secondary screening cylinder (501), and the tertiary screening cylinder (601) are respectively stacked on a triangular base frame (101) through corresponding sliding stable components. The primary screening cylinder (401) is located above the container cylinder (301), the secondary screening cylinder (501) is located above the primary screening cylinder (401), and the tertiary screening cylinder (601) is located above the secondary screening cylinder (501). The docking components are provided in multiple ways and are respectively disposed between the holding cylinder (301) and the primary screening cylinder (401), between the primary screening cylinder (401) and the secondary screening cylinder (501), and between the secondary screening cylinder (501) and the tertiary screening cylinder (601). A cover assembly is provided on top of the three-pronged base frame (101) and resists on top of the three-stage screening cylinder (601).
2. The soil sampling and screening device according to claim 1, characterized in that: The stabilizing component includes a stabilizing ring (201), which is mounted on a triangular base frame (101). The top of the stabilizing ring (201) is rotatably equipped with a plurality of bearing rollers (202), and the inner peripheral wall of the stabilizing ring (201) is rotatably equipped with a plurality of limiting rollers (203).
3. The soil sampling and screening device according to claim 1, characterized in that: The docking components include a flange platform (701) and an outer extension plate (703). The flange platform (701) is provided on the outer peripheral wall of the primary screening cylinder (401), the secondary screening cylinder (501), and the tertiary screening cylinder (601). Multiple locking posts (702) are arranged in an array at the bottom of the flange platform (701). The outer extension plate (703) is provided on the top of the holding cylinder (301), the primary screening cylinder (401), the secondary screening cylinder (501), and the tertiary screening cylinder (601). Multiple locking holes (704) are arranged in an array on the outer extension plate (703). The locking posts (702) are locked in the corresponding locking holes (704).
4. The soil sampling and screening device according to claim 1, characterized in that: The first-stage screening cylinder (401) is equipped with a first-stage filter plate (402) inside, and a first-stage discharge port (403) is provided at the bottom of the first-stage screening cylinder (401); the second-stage screening cylinder (501) is equipped with a second-stage filter plate (502) inside, and a second-stage discharge port (503) is provided at the bottom of the second-stage screening cylinder (501); the third-stage screening cylinder (601) is equipped with a third-stage filter plate (602) inside, and a third-stage discharge port (603) is provided at the bottom of the third-stage screening cylinder (601); the filter hole diameter on the first-stage filter plate (402) is smaller than the filter hole diameter on the second-stage filter plate (502), and the filter hole diameter on the second-stage filter plate (502) is smaller than the filter hole diameter on the third-stage filter plate (602).
5. A soil sampling and screening device according to claim 1, characterized in that: The outer plate (703) of the three-stage screening cylinder (601) is provided with a handle (801) around its perimeter.
6. A soil sampling and screening device according to claim 1, characterized in that: The cover component includes a three-pronged fastener (901), which is fitted onto the top of the three-pronged base frame (101). A cover (902) is provided at the bottom center of the three-pronged fastener (901), and the cover (902) is fastened to the top opening of the three-stage screening cylinder (601).