Quartering method soil division device
By designing a four-part soil shrinkage device with a chassis and upper cover with a four-part box, the problems of uneven dispersion, inter-seriality and pollution of samples are solved, and uniform dispersion and efficient choice of samples are achieved.
Patent Information
- Application Number
- CN202510656164.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2025-07-04
AI Technical Summary
The existing four-part soil sampling device has uneven sample dispersion range, four samples are not equal, sample series and contamination problems, resulting in large selection errors and low efficiency.
A four-part soil shrinkage device including a chassis and an upper cover is designed. Four four-part boxes are provided between the chassis and the upper cover. The four-part boxes are provided with side walls to ensure that the samples are restricted within the device during the dispersion process, avoiding inter-sertion and reducing contamination.
The uniform dispersion of the samples is achieved, the error is reduced, the efficiency is improved, and the risk of sample contamination is reduced.
Smart Images
Figure CN120253385A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to soil quartering, in particular to a quartering device for soil by the quartering method. Background Art
[0002] Soil, as a non-renewable resource, is an important production material. During the process of soil sample preparation, when it comes to the selection and rejection of samples, the quartering method is usually used to ensure that the taken soil sample is representative and has the same uniformity as the properties of the original soil sample. If the sample taken by the first quartering is insufficient or excessive, the quartering method needs to be repeated multiple times until a soil sample of a specific weight is obtained.
[0003] Quartering sampling is a commonly used sample reduction method for solid samples (such as soil, granular materials, powders, etc.). The purpose is to reduce the sample amount through multiple sub-samplings while maintaining the representativeness of the sample. The specific steps are as follows: (1) Mix the sample: Thoroughly mix the original sample evenly (such as by turning with a shovel, coning method, etc.) to ensure random particle distribution; (2) Pile into a cone: Pile the mixed sample into a cone to reduce the influence of particle size segregation; (3) Flatten and quarter: Use a flat plate to press the cone into a circular cake with uniform thickness, draw a "cross" line through the center, and divide the sample into 4 equal sectors (zones A, B, C, D); (4) Select and reject the sample: Keep two opposite parts (such as A + C or B + D), and discard the other two parts; (5) If the sample amount is still large, repeat the above steps until the required amount is reached.
[0004] The choice of sampling method determines the accuracy and reliability of the final data. Quartering sampling has many advantages in practical applications and can ensure the objectivity and representativeness of the sample.
[0005] As Figure 1 shown, the traditional quartering device is two flat plates with a 90° cross. When in use, after mixing the sample evenly on a flat operating table, the quartering device is placed on the sample for quartering operation. Although this process is simple to operate, it also has the following defects: First, the sample is always on the flat operating table, and there is no vertical partition to limit its dispersion range, which may cause the distribution range of the sample to exceed or be less than the range of the quartering device. Second, during the process of placing the quartering device on the sample, there is no relevant component to limit the placement position of the quartering device, which may cause the four sectors into which the sample is divided to be unequal, resulting in uneven sample distribution. Third, the sample is always on the operating table and cannot be picked up. After quartering, the sample is still on the flat operating table. When it is necessary to discard or sample the sample, there will be a situation where a small amount of the sample is left on the operating table, and there will also be a problem of cross-mixing between the four samples, causing errors in the selection and rejection of the sample. Fourth, the sample is always in an open environment, which may cause contamination. Summary of the Invention
[0006] Objective of the Invention: The objective of the present invention is to provide a quartering method soil reduction device with uniform quartering, small error, reduced sample contamination, and improved quartering efficiency.
[0007] Technical Solution: The quartering method soil reduction device described in the present invention includes a chassis and an upper cover. The chassis includes a bottom surface and a first side wall, and the upper cover includes a top surface and a second side wall. The size of the upper cover is close to that of the chassis and can be inserted into the chassis in the horizontal direction. It is characterized in that four identical quartering boxes are provided between the chassis and the upper cover. The quartering box includes a box bottom and a third side wall. The size of the four quartering boxes joined together is close to that of the upper cover and can be inserted into the upper cover in the horizontal direction.
[0008] Preferably, the bottom surface and the top surface are circular, the box bottom is fan-shaped, and the diameter of the circular bottom surface is 40 cm.
[0009] Preferably, the bottom surface and the top surface are rectangular, the box bottom is rectangular, and the long side of the rectangular bottom surface is 40 cm.
[0010] Preferably, the bottom surface and the top surface are square, the box bottom is square, and the side length of the square bottom surface is 40 cm.
[0011] Preferably, the bottom surface and the top surface are square, and the box bottom is triangular.
[0012] Preferably, the height of the first side wall, the second side wall, and the third side wall is not greater than 10 cm, and more preferably 4 cm.
[0013] Preferably, the chassis, the upper cover, and the quartering box are made of transparent materials.
[0014] Beneficial Effects: Compared with the prior art, the present invention has the following remarkable advantages: (1) Side walls are provided in both the chassis and the upper cover of the device, and the size of the quartering box is not much different from that of the upper cover and the chassis, which is beneficial to restricting the dispersion range of the sample and enabling the sample to be effectively and fully dispersed during the reduction process; (2) The four quartering boxes are independent of each other and are all provided with side walls, which is beneficial to keeping the sample in the quartering box after being turned over, effectively avoiding the mixing of the four samples, reducing the loss of the sample, and reducing the error; (3) Side walls are provided in both the chassis and the upper cover of the device, so that the sample is always inside the device during the entire reduction process, reducing sample contamination. Description of the Drawings
[0015] Figure 1 is the overall external view schematic diagram of a traditional quartering device;
[0016] Figure 2 is the structural schematic diagram of the reduction device described in Embodiment 1;
[0017] Figure 3Schematic diagram of the four quarter boxes assembled together as described in Example 1;
[0018] Figure 4 Schematic diagram of the structure of the splitting device as described in Example 2;
[0019] Figure 5 Schematic diagram of the four quarter boxes assembled together as described in Example 2;
[0020] Figure 6 Schematic diagram of the structure of the splitting device as described in Example 3;
[0021] Figure 7 Schematic diagram of the four quarter boxes assembled together as described in Example 3;
[0022] Figure 8 Schematic diagram of the structure of the splitting device as described in Example 4;
[0023] Figure 9 Schematic diagram of the four quarter boxes assembled together as described in Example 4. Detailed implementation manners
[0024] The technical solution of the present invention will be further described below in conjunction with the embodiments.
[0025] Example 1
[0026] As Figure 2-3 shown, the quartering soil splitting device of the present invention includes a chassis 1 with an upper opening and an upper cover 2 with a lower opening. The chassis 1 includes a bottom surface 12 and a first side wall 11, and the upper cover 2 includes a top surface 22 and a second side wall 21. The size of the upper cover 2 is close to that of the chassis 1 and can be horizontally inserted into the chassis 1. Four identical quarter boxes 3 with upper openings are provided between the chassis 1 and the upper cover 2. The quarter box 3 includes a box bottom 32 and a third side wall 31. The size of the four quarter boxes 3 assembled together is close to that of the upper cover 2 and can be horizontally inserted into the upper cover 2.
[0027] The bottom surface 12 and the top surface 22 are circular, the box bottom 32 is fan-shaped, and the diameter of the circular bottom surface is 40 cm.
[0028] The heights of the first side wall 11, the second side wall 21, and the third side wall 31 are 4 cm.
[0029] The chassis 1, the upper cover 2, and the quarter box 3 are made of transparent materials to facilitate observing the situation of the soil sample during the splitting process.
[0030] The usage process of this device is as follows:
[0031] (1) Mix the sample: Put an appropriate amount of soil sample into the chassis, use a shovel to turn the sample to mix it evenly, ensure that the particle distribution is random, and use tools to level the sample.
[0032] (2) Assemble four quarter boxes into a circle and press them into the chassis, then press the upper cover into the chassis.
[0033] (3) After compaction, turn the chassis and the upper cover over, and the soil samples will enter the four sector-shaped quarter boxes respectively. At this time, the opening of the chassis faces downward, and the openings of the upper cover and the quarter boxes face upward.
[0034] (4) Select samples: Keep the two soil samples at the diagonals and weigh them. If the requirements are met, the quartering process ends; otherwise, repeat steps (1)-(3), and discard the other two samples.
[0035] Example 2
[0036] As Figure 4-5 shown, the same parts as in Example 1 in this example will not be described in detail. The differences are as follows:
[0037] The bottom surface 12 and the top surface 22 are rectangular, the bottom of the box 32 is rectangular, and the long side of the rectangular bottom surface is 40 cm.
[0038] Example 3
[0039] As Figure 6-7 shown, the same parts as in Example 1 in this example will not be described in detail. The differences are as follows:
[0040] The bottom surface 12 and the top surface 22 are square, the bottom of the box 32 is square, and the side length of the square bottom surface is 40 cm.
[0041] Example 4
[0042] As Figure 8-9 shown, the same parts as in Example 1 in this example will not be described in detail. The differences are as follows:
[0043] The bottom surface 12 and the top surface 22 are square, the bottom of the box 32 is triangular, and the side length of the square bottom surface is 40 cm.
Claims
1. A quartering soil reduction device, comprising a chassis (1) and an upper cover (2). The chassis (1) includes a bottom surface (12) and a first side wall (11), and the upper cover (2) includes a top surface (22) and a second side wall (21). The size of the upper cover (2) is close to that of the chassis (1) and can be horizontally inserted into the chassis (1). It is characterized in that, Four identical quarter boxes (3) are provided between the chassis (1) and the upper cover (2). The quarter box (3) includes a box bottom (32) and a third side wall (31). The size of the four quarter boxes (3) joined together is close to that of the upper cover (2) and can be horizontally inserted into the upper cover (2).
2. The quartering soil reduction device according to claim 1, characterized in that, The bottom surface (12) and the top surface (22) are circular, and the box bottom (32) is sector-shaped.
3. The quartering soil reduction device according to claim 1, characterized in that The bottom surface (12) and the top surface (22) are rectangular, and the box bottom (32) is rectangular.
4. The quartering soil reduction device according to claim 1, characterized in that The bottom surface (12) and the top surface (22) are square, and the box bottom (32) is square.
5. The quartering soil reduction device according to claim 1, characterized in that, The bottom surface (12) and the top surface (22) are square, and the box bottom (32) is triangular.
6. The quartering soil reduction device according to claim 1, characterized in that The heights of the first side wall (11), the second side wall (21), and the third side wall (31) are not greater than 10 cm.
7. The quartering soil reduction device according to claim 1, characterized in that, The heights of the first side wall (11), the second side wall (21), and the third side wall (31) are not greater than 5 cm.
8. The quartering soil reduction device according to claim 1, characterized in that, The chassis (1), the upper cover (2), and the quarter box (3) are made of transparent materials.
9. The quartering soil reduction device according to claim 2, wherein, The diameter of the circular bottom surface (12) is 30 - 50 cm.
10. The quartering soil reduction device according to claim 2, characterized in that, The diameter of the circular bottom surface (12) is 40 cm.