A stratified sampling device for applied statistics

Abstract

This utility model discloses a stratified sampling device for applied statistics, relating to the field of stratified sampling statistical technology. The utility model includes a sampling box equipped with an installation and disassembly mechanism. This mechanism facilitates the installation and disassembly of the collection cylinder, allowing for rapid removal of the cylinder from the device during sample analysis. This ensures the complete and convenient extraction of the sample for analysis, guaranteeing efficient and smooth sampling and laying a solid foundation for subsequent sample-based analyses. Furthermore, when it is necessary to return the sample to the stratification chamber for future use, the operation is easily completed. The rapid disassembly of the collection cylinder allows for accurate return of the sample to the corresponding stratification chamber, facilitating subsequent sampling and ensuring the continuity and flexibility of the entire stratified sampling process. This improves work efficiency and optimizes the user experience of the applied statistical stratified sampling device.

Description

Technical Field

[0001] This utility model belongs to the field of stratified sampling statistical technology, and in particular relates to a stratified sampling device for applied statistics. Background Technology

[0002] In statistical analysis, stratified sampling is an important means of obtaining representative samples. Stratified sampling can divide the population into multiple strata according to different characteristics, and extract samples independently from each stratum, thereby comprehensively and accurately reflecting the characteristics of the population. This method is widely used in many fields such as environmental monitoring, market research, and medical research, and is crucial for improving the scientificity and reliability of statistical analysis.

[0003] Some existing stratified sampling devices are inconvenient to disassemble and install the collection tube during use. This makes it difficult to quickly remove the collection tube and extract the sample completely and conveniently during sample analysis, which in turn prolongs the sample analysis cycle. Furthermore, improper operation can easily lead to sample contamination or loss, severely reducing the accuracy of the analysis results. Utility Model Content

[0004] The purpose of this invention is to provide a stratified sampling device for statistical applications. By providing an installation and disassembly mechanism, it solves the problem that some existing stratified sampling devices are inconvenient to disassemble and install the collection cylinder during use.

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

[0006] This utility model relates to a stratified sampling device for applied statistics, comprising a sampling box, wherein the sampling box is equipped with an installation / disassembly mechanism and a mixing mechanism.

[0007] The installation and disassembly mechanism includes several installation slots at the bottom of the sampling box, with collection cylinders slidably connected to the inner walls of each of the installation slots. Two sliding grooves are provided on both the left and right sides of the sampling box, with positioning pins slidably connected to the inner walls of each of the sliding grooves. Two protrusions are fixedly connected to the outer walls of each of the collection cylinders. Two grooves are provided on the inner walls of each of the installation slots, with each of the protrusions slidably connected to its corresponding groove. A positioning groove is provided on the side of each protrusion closest to its corresponding positioning pin, and the end of each positioning pin closest to its corresponding protrusion is slidably connected to its corresponding positioning groove. The mixing mechanism includes a motor fixedly connected to the top of the sampling box.

[0008] Furthermore, each of the positioning pins is fixedly connected to a connecting plate, and each of the positioning pins is wound with a spring.

[0009] Furthermore, a pull plate is fixedly connected between two of the locating pins, and the two pull plates are located on the left and right sides of the sampling box, respectively. Two feeding ports are fixedly connected to the left and right sides of the sampling box.

[0010] Furthermore, the inner wall of the sampling box is provided with several layered cavities, and the bottom wall of each of the several layered cavities is provided with a discharge port.

[0011] Furthermore, a motor is fixedly connected to the bottom of the sampling box, and the output shaft of the motor is fixedly connected to a rotating shaft via a coupling. The top end of the rotating shaft extends into the interior of the sampling box and is rotatably connected to the sampling box.

[0012] Furthermore, a turntable is fixedly connected to the top of the rotating shaft, the turntable is slidably connected to the inner wall of the sampling box, and an extraction hole is provided on the turntable.

[0013] Furthermore, the output shaft of the second motor is fixedly connected to a second rotating shaft via a coupling. The bottom end of the second rotating shaft extends into the interior of the sampling box and is rotatably connected to the sampling box. Several third rotating shafts are rotatably connected to the top of the sampling box, and the bottom ends of the third rotating shafts extend into the corresponding layered cavities.

[0014] Furthermore, a gear 1 is fixedly connected to the second rotating shaft, a gear 2 is fixedly connected to each of the third rotating shafts, the gear 2 meshes with the gear 1, and a number of hybrid rods are fixedly connected to each of the third rotating shafts.

[0015] This utility model has the following beneficial effects:

[0016] 1. By setting up an installation and disassembly mechanism, pulling two pull plates will cause the corresponding positioning pins to move. When the positioning pins move, they will disengage from the positioning slots and drive the connecting plate to move. When the connecting plate moves, it will cause the spring to contract. At the same time, after the positioning pins disengage from the positioning slots, the collection cylinder will move downwards. The installation and disassembly mechanism makes it easy to disassemble and install the collection cylinder. In the sample analysis stage, the collection cylinder can be quickly removed from the device, and the sample can be taken out completely and conveniently for analysis. This ensures the efficient and smooth progress of the sampling work and lays a solid foundation for subsequent sample-based analysis. At the same time, when it is necessary to put the sample back into the stratification chamber for the next use, the operation can be easily completed. By quickly disassembling the collection cylinder, the sample can be accurately put back into the corresponding stratification chamber, which provides convenience for subsequent sampling. This ensures the continuity and flexibility of the entire stratified sampling work, improves work efficiency, and optimizes the user experience of the statistical stratified sampling device.

[0017] 2. By setting up a mixing mechanism, motor two is started, which drives shaft two to rotate. When shaft two rotates, it drives gear one to rotate. When gear one rotates, it drives gear two to rotate. When gear two rotates, it drives shaft three to rotate. When shaft three rotates, it drives the mixing rod to rotate. Through the mixing mechanism, the total amount of subsamples in the stratified chamber is mixed and stirred. This optimizes the stratified sampling process in all aspects, thereby ensuring that the subsamples are mixed evenly. This avoids the distribution imbalance caused by differences in density and properties, and ensures that the properties of samples from all parts are consistent. This makes the extracted samples accurately represent the whole. It not only effectively reduces various analytical errors caused by sample inhomogeneity and greatly improves the accuracy of the test results, but also enhances the reproducibility of the experimental results. Whether it is a repeated test or a comparative study under different experimental environments, it can provide stable and reliable data support and enhance the accuracy and reproducibility of the results.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the left-side cross-sectional structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the second motor of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the motor of this utility model;

[0026] Figure 7 This utility model Figure 4 A magnified structural diagram of A in the diagram.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Sampling box; 2. Installation and disassembly mechanism; 3. Mixing mechanism; 21. Installation groove; 22. Collection cylinder; 23. Slide groove; 24. Positioning pin; 25. Protrusion; 26. Groove; 27. Positioning groove; 28. Connecting plate; 29. ​​Spring; 210. Pull plate; 211. Feed port; 212. Layered cavity; 213. Discharge port; 214. Motor 1; 215. Rotating shaft 1; 216. Turntable; 217. Extraction hole; 31. Motor 2; 32. Rotating shaft 2; 33. Rotating shaft 3; 34. Gear 1; 35. Gear 2; 36. Mixing rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-7As shown, this utility model is a stratified sampling device for statistical applications, including a sampling box 1. The sampling box 1 is equipped with an installation / disassembly mechanism 2 and a mixing mechanism 3. The installation / disassembly mechanism 2 includes several installation grooves 21 formed at the bottom of the sampling box 1. The inner walls of the several installation grooves 21 are slidably connected to collection cylinders 22. Two sliding grooves 23 are formed on the left and right sides of the sampling box 1. The inner walls of the several sliding grooves 23 are slidably connected to positioning pins 24. The outer walls of the several collection cylinders 22 are fixedly connected to two protrusions 25. The inner walls of the several installation grooves 21 are formed to two grooves 26. The several protrusions 25 are... The mixing mechanism 3 includes a motor 21 fixedly connected to the top of the sampling box 1. A plurality of protrusions 25 are provided with positioning grooves 27 on the side near the corresponding positioning pins 24. A plurality of positioning pins 24 are slidably connected to the end near the corresponding protrusion 25 with the corresponding positioning groove 27. A connecting plate 28 is fixedly connected to each of the positioning pins 24. A spring 29 is wound around each of the positioning pins 24. A pull plate 210 is fixedly connected between two corresponding positioning pins 24. The two pull plates 210 are located on the left and right sides of the sampling box 1, respectively. The left and right sides of the sampling box 1 are fixedly connected... The sampling box 1 has two feeding ports 211. The inner wall of the sampling box 1 has several layered cavities 212, and the bottom wall of each of the layered cavities 212 has a discharge port 213. A motor 214 is fixedly connected to the bottom of the sampling box 1. The output shaft of the motor 214 is fixedly connected to a rotating shaft 215 via a coupling. The top end of the rotating shaft 215 extends into the interior of the sampling box 1 and is rotatably connected to it. A turntable 216 is fixedly connected to the top end of the rotating shaft 215. The turntable 216 is slidably connected to the inner wall of the sampling box 1. An extraction hole 217 is provided on the turntable 216. The collection cylinder 22 is accessed via the installation and disassembly mechanism 2. The device is easy to disassemble and install, allowing the collection tube 22 to be quickly removed from the device during sample analysis. This enables the complete and convenient removal of the sample for analysis, ensuring efficient and smooth sampling and laying a solid foundation for subsequent sample-based analyses. Furthermore, when it is necessary to return the sample to the stratification chamber for future use, the operation is easily completed. By quickly disassembling the collection tube 22, the sample can be accurately placed back into the corresponding stratification chamber, facilitating subsequent sampling. This ensures the continuity and flexibility of the entire stratified sampling process, improves work efficiency, and optimizes the user experience of the stratified sampling device for statistical applications.

[0031] The output shaft of motor 2 31 is fixedly connected to shaft 2 32 via a coupling. The bottom end of shaft 2 32 extends into the interior of sampling box 1 and is rotatably connected to sampling box 1. Several shafts 33 are rotatably connected to the top of sampling box 1. The bottom ends of the shafts 33 extend to the corresponding layered cavities 212. Gear 1 34 is fixedly connected to shaft 2 32. Gear 2 35 is fixedly connected to each of the shafts 33. The gears 2 35 mesh with gear 1 34. Several mixing rods 36 are fixedly connected to each of the shafts 33. Through the mixing mechanism... 3. Mixing and stirring the total amount of subsamples in the layered cavity 212 can comprehensively optimize the layered sampling process, thereby ensuring uniform mixing of subsamples, avoiding distribution imbalance caused by differences in density and properties, ensuring that the properties of samples in each part are consistent, and making the extracted samples accurately represent the whole. This not only effectively reduces various analytical errors caused by sample inhomogeneity and greatly improves the accuracy of detection results, but also enhances the reproducibility of experimental results. Whether it is a subsequent repeated detection or a comparative study under different experimental environments, it can provide stable and reliable data support, enhancing the accuracy and reproducibility of the results.

[0032] A specific application of this embodiment is as follows: When using the device, different total quantities are first fed into different layered cavities 212 through the feeding port 211. The motor 214 is started, and the motor 214 drives the rotating shaft 215 to rotate. When the rotating shaft 215 rotates, it drives the turntable 216 to rotate. When the turntable 216 rotates, the extraction hole 217 on the turntable 216 moves. When the extraction hole 217 is aligned with the position of a certain discharge port 213, the sample in the corresponding layered cavity 212 will fall into the corresponding collection cylinder 22, thereby completing the purpose of extracting the sample. When it is necessary to disassemble the collection cylinder 22, the two pull plates 210 are pulled. The two pull plates 210 will drive the corresponding positioning pin 24 to move. When the positioning pin 24 moves, it will disengage from the positioning groove 27 and drive the connecting plate 28 to move. When the connecting plate 28 moves, it causes the spring 29 to contract. At the same time, after the positioning pin 24 disengages from the positioning groove 27, the collecting cylinder 22 moves downward, and the collecting cylinder 22 can be disassembled. When the collecting cylinder 22 needs to be installed, the collecting cylinder 22 is slid into the mounting groove 21 by pulling the pull plate 210, and the protrusion 25 slides into the groove 26. Then, the pull plate 210 is released, and the spring 29 returns to its original position under its own elasticity, thereby driving the connecting plate 28 to move. When the connecting plate 28 moves, it drives the positioning pin 24 to move, and then the positioning pin 24 slides into the corresponding positioning groove 27, thereby completing the fixing of the collecting cylinder 22. Positioning grooves 27 are opened on several protrusions 25. Therefore, when installing the collecting cylinder 22, it is only necessary to make the protrusion 25 slide into the positioning pin 24.

[0033] After the total amount of sub-sub ...

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A stratified sampling device for application of statistics, characterized by: Includes a sampling box (1), which is provided with an installation and disassembly mechanism (2) and a mixing mechanism (3); The installation and disassembly mechanism (2) includes several installation slots (21) at the bottom of the sampling box (1). The inner walls of the several installation slots (21) are slidably connected to collection cylinders (22). The left and right sides of the sampling box (1) are provided with two sliding grooves (23). The inner walls of the several sliding grooves (23) are slidably connected to positioning pins (24). The outer walls of the several collection cylinders (22) are fixedly connected to two protrusions (25). The inner walls of the several installation slots (21) are provided with two grooves (26). The several protrusions (25) are slidably connected to the corresponding grooves (26). The side of the several protrusions (25) near the corresponding positioning pins (24) is provided with positioning grooves (27). The end of the several positioning pins (24) near the corresponding protrusions (25) is slidably connected to the corresponding positioning grooves (27). The mixing mechanism (3) includes a motor (31) fixedly connected to the top of the sampling box (1).

2. The stratified sampling device for application of statistics according to claim 1, characterized in that, A connecting plate (28) is fixedly connected to each of the positioning pins (24), and a spring (29) is wound around each of the positioning pins (24).

3. The stratified sampling device for application of statistics according to claim 2, characterized in that, A pull plate (210) is fixedly connected between two of the positioning pins (24). The two pull plates (210) are located on the left and right sides of the sampling box (1), respectively. Two feeding ports (211) are fixedly connected to the left and right sides of the sampling box (1).

4. The stratified sampling device for application of statistics according to claim 3, characterized in that, The inner wall of the sampling box (1) is provided with several layered cavities (212), and the bottom wall of each of the several layered cavities (212) is provided with a discharge port (213).

5. The stratified sampling device for application of statistics according to claim 4, characterized in that, The bottom of the sampling box (1) is fixedly connected to a motor (214), and the output shaft of the motor (214) is fixedly connected to a rotating shaft (215) via a coupling. The top of the rotating shaft (215) extends into the interior of the sampling box (1) and is rotatably connected to the sampling box (1).

6. A stratified sampling device for applied statistics according to claim 5, characterized in that, The top of the rotating shaft (215) is fixedly connected to a turntable (216), the turntable (216) is slidably connected to the inner wall of the sampling box (1), and the turntable (216) is provided with an extraction hole (217).

7. The stratified sampling device for application statistics of claim 6, wherein, The output shaft of the second motor (31) is fixedly connected to the second rotating shaft (32) via a coupling. The bottom end of the second rotating shaft (32) extends into the interior of the sampling box (1) and is rotatably connected to the sampling box (1). The top of the sampling box (1) is rotatably connected to several third rotating shafts (33), and the bottom ends of several third rotating shafts (33) extend to the corresponding layered cavity (212).

8. The stratified sampling device for application of statistics according to claim 7, characterized in that, Gear 1 (34) is fixedly connected to the second rotating shaft (32), and gear 2 (35) is fixedly connected to several third rotating shafts (33). Several gear 2 (35) mesh with gear 1 (34), and several hybrid rods (36) are fixedly connected to several third rotating shafts (33).

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