Forest soil sample preparation device
By integrating drying, grinding, and sieving functions, the forest soil sample preparation device solves the problems of cumbersome operation and cross-contamination of traditional equipment, achieving efficient and accurate soil sample processing and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional forest soil sample processing equipment is cumbersome to operate, inefficient, and prone to sample loss and cross-contamination, affecting the accuracy of testing.
Design a forest soil sample preparation device that integrates drying, grinding and sieving functions. It adopts a drying box cover with a double-layer staggered hole structure, a grinding box cover driven by a motor and a sieving box cover with a double-layer screen to achieve automated processing.
It improves the efficiency and quality of soil sample pretreatment, enhances the accuracy and efficiency of testing, and reduces production costs.
Smart Images
Figure CN224095485U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil testing technology, specifically relating to a forest soil sample preparation device. Background Technology
[0002] Physicochemical testing of forest soils includes moisture, pH, heavy metals, and available nutrients. Before testing, the soil needs to be dried, ground, and sieved to the particle size specified in the testing standards. Traditional methods require separate equipment, are cumbersome and inefficient, and are prone to sample loss and cross-contamination, affecting experimental accuracy. Therefore, a soil sample processing device integrating drying, grinding, and sieving functions is needed to improve sample quality and testing efficiency. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a forest soil sample preparation device in response to the shortcomings of the prior art. The device has a simple and reasonable structural design, is highly practical, effectively integrates three functions: drying, grinding and sieving, is easy to operate, can effectively improve the pretreatment and preparation efficiency of soil samples, improve sample quality and detection accuracy, has low manufacturing cost, and can be widely used.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a forest soil sample preparation device, characterized in that it includes a drying box and a box body, wherein multiple boxes are arranged inside the drying box, and the multiple boxes are respectively threadedly connected to a drying box cover, a grinding box cover and a sieving box cover, the drying box cover is a double-layer staggered hole structure, the grinding box cover is provided with grinding blades, the sieving box cover is a double-layer sieve structure, and the box body is a cylindrical hollow container with an open top;
[0005] The drying box cover includes an upper cover and a lower cover. The upper cover is integrally formed and connected to the side cylinder. The side cylinder is threadedly connected to the lower cover. The lower cover is threadedly connected to the box body. The upper cover has four drying holes, and the lower cover has five drying holes. The drying holes of the upper cover and the lower cover are staggered.
[0006] Preferably, a motor is fixedly installed at the center of the grinding box cover, the output shaft of the motor is coaxially fixedly connected to a rotating shaft, a plurality of grinding blades are provided on the rotating shaft, and the grinding box cover is threadedly connected to the box body.
[0007] Preferably, the screening box cover includes an upper screening cylinder and a lower screening cylinder. A 10-mesh lower screening screen is fixedly installed inside the lower screening cylinder, and a 100-mesh upper screening screen is fixedly installed inside the upper screening cylinder. The bottom end of the upper screening cylinder is threadedly connected to the top end of the lower screening cylinder, and the bottom end of the lower screening cylinder is threadedly connected to the box body.
[0008] Preferably, a storage battery for powering the motor is provided inside the grinding box cover.
[0009] This utility model has the following advantages compared with the prior art:
[0010] 1. The present invention has a scientific and reasonable structural design, is simple to operate, and is highly practical. It can integrate drying, grinding and sieving functions, improve the speed and quality of sample preparation, and effectively improve the detection efficiency and accuracy.
[0011] 2. This utility model uses a drying box cover with a double-layer staggered hole structure to make the two layers of holes staggered in the vertical projection direction, thus balancing evaporation efficiency and dust prevention effect; the grinding box cover is directly driven by a motor to grind and crush the soil; and the soil that meets the particle size specified by the testing standard is screened out by a double-layer screen.
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the box body in this utility model.
[0015] Figure 3 This is a schematic diagram of the structure of the drying box lid in this utility model.
[0016] Figure 4 This is a schematic diagram of the structure of the grinding box cover in this utility model.
[0017] Figure 5 This is a schematic diagram of the structure of the sieve box cover after assembly in this utility model.
[0018] Figure 6 This is a schematic diagram of the structure of the sieve box cover after it is separated in this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] Detailed Implementation
[0021] like Figures 1 to 6 As shown, this utility model includes a drying box 1 and a box body 2. The drying box 1 is provided with multiple box bodies 2. The multiple box bodies 2 are respectively threadedly connected to a drying box cover 3, a grinding box cover 4, and a sieving box cover 5. The drying box cover 3 has a double-layer staggered hole structure. The grinding box cover 4 is provided with a grinding blade 403. The sieving box cover 5 has a double-layer screen structure. The box body 2 is a cylindrical hollow container with an open top.
[0022] The drying box cover 3 includes an upper cover 302 and a lower cover 301. The upper cover 302 is integrally formed and connected to the side cylinder. The side cylinder is threadedly connected to the lower cover 301. The lower cover 301 is threadedly connected to the box body 2. The upper cover 302 has four drying holes, and the lower cover 301 has five drying holes. The drying holes of the upper cover 302 and the lower cover 301 are staggered. The drying holes of the upper cover 302 and the lower cover 301 are completely staggered in the projection direction, which can balance the evaporation efficiency and also play a dust prevention role. The diameter of the drying holes of the upper cover 302 and the lower cover 301 is the same.
[0023] In this embodiment, a motor 401 is fixedly installed at the center of the grinding box cover 4, the output shaft of the motor 401 is coaxially fixedly connected to a rotating shaft 402, a plurality of grinding blades 403 are provided on the rotating shaft 402, and the grinding box cover 4 is threadedly connected to the box body 2.
[0024] In this embodiment, the sieving box cover 5 includes an upper sieve cylinder 501 and a lower sieve cylinder 502. A 10-mesh lower sieve is fixedly installed inside the lower sieve cylinder 502, and a 100-mesh upper sieve is fixedly installed inside the upper sieve cylinder 501. The bottom end of the upper sieve cylinder 501 is threadedly connected to the top end of the lower sieve cylinder 502, and the bottom end of the lower sieve cylinder 502 is threadedly connected to the box body 2.
[0025] In this embodiment, a battery for powering the motor 401 is provided inside the grinding box cover 4.
[0026] In use, the initial sample of forest soil is first placed into the box 2 connected to the drying box cover 3 and then into the drying chamber 1. The drying chamber 1 is turned on to dry the soil in the multiple boxes 2 connected to the drying box cover 3. The staggered drying holes in the upper and lower layers can effectively prevent dust from flying out into the drying chamber 1, while not affecting the drying heat flow into the box 2 to dry the soil. After drying, the drying box cover 3 is removed and connected to the grinding box cover 4. The click 401 is turned on to drive the grinding blade 403 to rotate and crush and grind the soil. After crushing and grinding, the grinding box cover 4 is removed and replaced with the sieving box cover 5. The box 2 is inverted and shaken to make the soil pass through the 10-mesh and 100-mesh sieves in sequence, and the forest soil samples that meet the particle size specified in GB / T 22105.2-2008, NY / T 52-1987, and LY / T 1239-1999 are screened out. The screened soil samples can be tested in existing physicochemical testing devices.
[0027] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A forest soil sample preparation device, characterized in that, It includes a drying box (1) and a box body (2). The drying box (1) is provided with multiple boxes (2). The multiple boxes (2) are respectively threaded to a drying box cover (3), a grinding box cover (4) and a sieving box cover (5). The drying box cover (3) has a double-layer staggered hole structure. The grinding box cover (4) is provided with a grinding blade (403). The sieving box cover (5) has a double-layer screen structure. The box body (2) is a cylindrical hollow container with an open top. The drying box cover (3) includes an upper cover (302) and a lower cover (301). The upper cover (302) is integrally formed and connected to the side cylinder. The side cylinder is threadedly connected to the lower cover (301). The lower cover (301) is threadedly connected to the box body (2). The upper cover (302) has four drying holes, and the lower cover (301) has five drying holes. The drying holes of the upper cover (302) and the lower cover (301) are staggered.
2. The forest soil sample preparation device according to claim 1, characterized in that, The grinding box cover (4) is fixedly installed with a motor (401) at the center position. The output shaft of the motor (401) is coaxially fixedly connected to a rotating shaft (402). Multiple grinding blades (403) are provided on the rotating shaft (402). The grinding box cover (4) is threadedly connected to the box body (2).
3. The forest soil sample preparation device according to claim 1, characterized in that, The sieving box cover (5) includes an upper sieve cylinder (501) and a lower sieve cylinder (502). A 10-mesh lower sieve is fixedly installed inside the lower sieve cylinder (502), and a 100-mesh upper sieve is fixedly installed inside the upper sieve cylinder (501). The bottom end of the upper sieve cylinder (501) is threaded to the top end of the lower sieve cylinder (502), and the bottom of the lower sieve cylinder (502) is threaded to the box body (2).
4. The forest soil sample preparation device according to claim 1, characterized in that, The grinding box cover (4) is equipped with a storage battery that supplies power to the motor (401).