A quantitative sampling device for multiple grain detection using equal-volume distribution

Abstract

A quantitative sampling device for equal-volume distribution in multiple grain testing is disclosed. This invention relates to the field of grain food testing. Existing methods for manually distributing samples in multiple grain testing processes suffer from large errors and uneven sample quantities across groups. This invention includes a slide box, a hopper, a slide frame, and a discharge cylinder. The slide box has a horizontally oriented cavity, within which the slide frame is fitted and can slide along its length. The hopper is mounted on top of the slide box and communicates with the cavity. The discharge cylinder is fixed to one side of the slide box and also communicates with the cavity. A quantitative orifice is longitudinally oriented on the slide frame, aligning with either the bottom outlet of the hopper or the top inlet of the discharge cylinder as the slide frame slides horizontally. A sliding rod is fixedly connected to the side of the slide frame. A limiting groove is provided in the slide box along the length of the cavity corresponding to the position of the sliding rod, allowing the sliding rod to drive the slide frame horizontally, while the limiting groove restricts the movement of the slide frame. This invention is applied in the field of grain food testing.

Description

Technical Field

[0001] This utility model relates to the field of grain food testing, specifically to a quantitative sampling device for equal distribution of multiple grains for testing. Background Technology

[0002] In the field of grain quality testing, it is often necessary to perform equal-volume quantitative sampling for multiple grain tests to ensure the accuracy and comparability of the test data. Maintaining the same quantity for each component in multiple grain tests eliminates the interference of sample quantity differences on the test results, ensures direct comparability of nutritional components, contaminants, and other indicators between different groups, and avoids inflated or understated test values ​​due to excessive or insufficient sampling in one component, ultimately guaranteeing the scientific validity and accuracy of the experimental conclusions. Therefore, equal-volume quantitative sampling for multiple grain tests is frequently required to ensure the accuracy and comparability of the test data.

[0003] Currently, when dividing multiple grain samples for testing, manual methods are often used, such as scooping with measuring spoons or dispensing with simple funnels. This is not only cumbersome and time-consuming, but also prone to uneven sample quantities due to human error, often resulting in significant weight deviations in each sample and affecting the reliability of subsequent test data. Some automatic dispensing devices have complex structures and are difficult to operate when adjusting different sample quantities, making it difficult to meet the needs of multiple groups and flexible quantitative sample division in the laboratory. Utility Model Content

[0004] In order to solve the problems of large errors in manual sample allocation and uneven sample quantities in the existing sample allocation work for testing multiple groups of grain samples, this utility model provides a quantitative sample allocation device for equal distribution of multiple groups of grain samples.

[0005] The technical solution of this utility model is:

[0006] A quantitative sampling device for equal-volume distribution to achieve multi-group grain detection includes a slide box, a hopper, a slide, and a discharge cylinder;

[0007] The carriage box has a horizontally oriented sliding cavity inside, and the carriage is adapted to be installed in the sliding cavity and can slide along the length of the sliding cavity.

[0008] The hopper is installed on the top of the carriage box and communicates with the slide cavity, and the discharge cylinder is fixed to one side of the carriage box and communicates with the slide cavity;

[0009] The slide has a metering hole that is longitudinally opened. The metering hole slides horizontally with the slide until it aligns with the bottom outlet of the hopper or the top inlet of the discharge cylinder.

[0010] Furthermore, a slide rod is fixedly connected to the side of the slide carriage, and a limiting groove is opened in the slide carriage box along the length direction of the slide cavity corresponding to the position of the slide rod. The slide rod is inserted into the limiting groove, and the two are fitted with a clearance, so that the slide rod drives the slide carriage to slide horizontally, and the limiting groove limits the slide carriage.

[0011] Furthermore, a ball bearing plate is installed at the bottom of the carriage, and a set of ball bearing mounting holes are evenly opened on the ball bearing mounting plate. A ball bearing is rotatably connected in each ball bearing mounting hole, and the top of the ball bearing extends out of the ball bearing mounting hole and contacts the outer wall of the bottom of the carriage.

[0012] Furthermore, a cover plate is movably connected to the outer wall of the carriage box on the side away from the discharge cylinder. Two opposing ear plates are fixedly provided on the carriage box at the position corresponding to the cover plate. One side of the cover plate is rotatably connected to the two ear plates through a shaft, allowing the cover plate to rotate around the shaft.

[0013] Furthermore, it also includes a graduated cylinder, which has column grooves every 90 degrees, and a column is fixedly installed on the inner wall of the metering hole;

[0014] The inner diameter of the groove is adapted to the outer diameter of the insert, and the two can be vertically inserted and pulled together to fix the measuring cylinder in the measuring hole.

[0015] Furthermore, the hopper is funnel-shaped with a large opening at the top and a small opening at the bottom, and the discharge cylinder is cylindrical with the top and bottom connected.

[0016] The bottom outlet diameter of the hopper and the top inlet diameter of the discharge cylinder are consistent with the metering orifice diameter, and the axes of the three can slide along the same straight line as the slide.

[0017] Furthermore, the bottom outer wall of the carriage box is fixedly connected with supporting columns, which are evenly distributed along the circumference of the carriage box, and the bottom end faces of all supporting columns are on the same horizontal plane.

[0018] Furthermore, the carriage box has a rear cover detachably connected to the side face away from the discharge cylinder, and a front cover detachably connected to the side face near the discharge cylinder. The dimensions of both the rear and front covers are adapted to the end face of the carriage box.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] This invention achieves automatic equal distribution of grains by horizontally sliding the carriage and precisely aligning the quantitative orifice with the hopper and discharge cylinder. This eliminates the need for manual weighing in multiple batches, significantly reduces human error, improves the consistency of distribution among multiple grain samples, and ensures the accuracy of subsequent test results.

[0021] This invention features a ball bearing at the bottom of the slide that works in conjunction with a ball bearing orifice plate to convert the sliding friction of the slide into rolling friction, making the slide smoother and less strenuous. At the same time, the cooperation between the limiting groove and the slide rod on the slide ensures that the metering orifice can be accurately aligned with the hopper or discharge cylinder every time, further improving the reliability of the device.

[0022] This utility model device uses the cooperation between the cover plate, the insert post and the groove of the measuring cylinder to connect measuring cylinders of different quantities through the insertion and connection between the groove and the insert post in the quantitative hole. By changing the measuring cylinder of different quantities, it can flexibly realize the quantitative distribution of different amounts of grains without the need to replace complex parts. It is easy to operate, has a wide range of applications, and can meet the quantitative sample distribution needs of multiple groups and multiple amounts of grains in the laboratory. Moreover, the overall structure is simple and the manufacturing cost is low. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 yes Figure 1 Top view in the middle;

[0025] Figure 3 yes Figure 1 AA section view in the middle;

[0026] Figure 4 This is a schematic diagram of the structure when the metering orifice on the carriage coincides with the bottom outlet of the hopper;

[0027] Figure 5 yes Figure 4 A structural diagram of the structure without the carriage installed.

[0028] Figure 6 yes Figure 1 A schematic diagram of the structure when a graduated cylinder is installed inside the metering orifice;

[0029] Figure 7 yes Figure 1 A magnified view of part E in the image;

[0030] Figure 8 yes Figure 2 Top view of the material without the hopper installed;

[0031] Figure 9 This is a structural diagram of the carriage;

[0032] Figure 10 yes Figure 9 BB section view in the middle;

[0033] Figure 11 This is a schematic diagram of the graduated cylinder;

[0034] Figure 12 yes Figure 11 Sectional view of CC;

[0035] In the diagram: 1. Carriage box, 2. Hopper, 3. Metering orifice, 4. Carriage, 5. Feeding cylinder, 6. Limiting groove, 7. Sliding cavity, 8. Cover plate, 9. Insert column, 10. Measuring cylinder, 11. Column groove, 12. Sliding rod, 13. Support column, 14. Rear cover, 15. Front cover, 16. Ball bearing, 17. Ball bearing orifice plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0037] Specific implementation method one: Combining Figure 1 — Figure 6 This embodiment describes an equal-volume quantitative sampling device for detecting multiple grains, comprising a slide box 1, a hopper 2, a slide 4, and a discharge cylinder 5.

[0038] The slide box 1 has a horizontally oriented sliding cavity 7 inside, and the slide 4 is adapted to be installed in the sliding cavity 7 and can slide along the length of the sliding cavity 7.

[0039] The hopper 2 is installed on the top of the slide box 1 and communicates with the slide cavity 7; the material discharge cylinder 5 is fixed to one side of the slide box 1 and communicates with the slide cavity 7.

[0040] The slide 4 has a metering hole 3 in a longitudinal direction. The metering hole 3 slides horizontally with the slide 4 to align with the bottom outlet of the hopper 2 or the top inlet of the discharge cylinder 5.

[0041] It includes a carriage box 1, a hopper 2, a carriage 4, a discharge cylinder 5, and a measuring cylinder 10;

[0042] The carriage box 1 has a sliding cavity 7 inside, which is used to accommodate the carriage 4 and allow the carriage 4 to slide horizontally.

[0043] The top of the slide box 1 is fixedly equipped with a hopper 2, and the bottom of the hopper 2 is connected to the slide cavity 7 for storing grains to be distributed;

[0044] A feeding cylinder 5 is fixedly installed on one side of the slide box 1. The top of the feeding cylinder 5 is connected to the slide cavity 7 to guide the grains to fall into the container.

[0045] The slide 4 is provided with a metering hole 3, which is used to hold a certain amount of grain, and the metering hole 3 can slide with the slide 4 to be aligned with the hopper 2 or the discharge cylinder 5.

[0046] The slide box 1 is detachably connected to a rear cover 14 on the side away from the discharge cylinder 5, and a front cover 15 is detachably connected on the side closer to the discharge cylinder 5. The rear cover 14 and the front cover 15 are used to close the slide cavity 7 and provide support to prevent grain leakage.

[0047] Specific Implementation Method Two: Combining Figure 1 — Figure 6 This embodiment describes a quantitative sampling device for detecting multiple grains by equal distribution. A slide rod 12 is fixedly connected to the side of the slide frame 4. A limiting groove 6 is formed along the length of the slide cavity 7 at the position corresponding to the position of the slide rod 12. The slide rod 12 is inserted into the limiting groove 6 with a clearance fit, so that the slide rod 12 drives the slide frame 4 to slide horizontally, and the limiting groove 6 limits the slide frame 4.

[0048] The slide 4 is connected to a slide rod 12 on one side. The slide box 1 is provided with a limiting groove 6 corresponding to the position of the slide rod 12. The slide rod 12 is inserted into the limiting groove 6 and slides in cooperation with the limiting groove 6 to limit the sliding direction of the slide 4 and ensure that the metering hole 3 is accurately aligned with the hopper 2 or the discharge cylinder 5.

[0049] Specific implementation method three: Combining Figure 7 This embodiment describes a quantitative sampling device for equal distribution of multiple grains for detection. The slide 4 has a ball bearing perforation plate 17 installed at its bottom. A set of ball bearing mounting holes are evenly opened on the ball bearing perforation plate 17. A ball bearing 16 is rolled and connected in each ball bearing mounting hole. The top of the ball bearing 16 extends out of the ball bearing mounting hole and contacts the outer wall of the bottom of the slide 4.

[0050] A ball bearing plate 17 is fixedly installed at the bottom of the slide 4. A plurality of balls 16 are rolledly connected on the ball bearing plate 17. The top of the balls 16 contacts the bottom of the slide 7 to reduce the friction when the slide 7 slides.

[0051] The rear end of the slide box 1 is detachably connected to the rear cover 14 by bolts, and the front end is detachably connected to the front cover 15 by bolts. The dimensions of the rear cover 14 and the front cover 15 are adapted to the end face dimensions of the slide cavity 7. When the device is assembled, the rear cover 14 and the front cover 15 can completely seal both ends of the slide cavity 7 to prevent grain from leaking from the end of the slide cavity 7.

[0052] The bottom of the slide 4 is fixedly mounted with an L-shaped ball bearing plate 17 by screws. The ball bearing plate 17 has several ball bearing mounting holes evenly distributed on it. Each ball bearing mounting hole is connected to a ball bearing 16. The ball bearing 16 extends out of the ball bearing mounting hole and is disconnected from the bottom of the slide cavity 7. When the slide 4 slides in the slide cavity 7, the ball bearing 16 can convert the sliding friction between the slide 4 and the ball bearing plate 17 into rolling friction, which greatly reduces the friction force when the slide 4 slides, making the slide 4 slide more smoothly and effortlessly.

[0053] Specific implementation method four: Combination Figure 8 This embodiment describes a quantitative sampling device for detecting multiple grains with equal distribution. The slide box 1 has a cover plate 8 movably connected to the outer wall of the side away from the discharge cylinder 5. The slide box 1 has two opposite ear plates fixedly provided at the position corresponding to the cover plate 8. One side of the cover plate 8 is rotatably connected to the two ear plates through a shaft, so that the cover plate 8 can rotate around the shaft.

[0054] The slide box 1 is also movably connected to a cover plate 8 on the side away from the discharge cylinder. The cover plate 8 is rotatably connected to two lugs on the slide box 1 via a shaft. The cover plate 8 can rotate around the shaft to open or close the corresponding opening of the slide box 1.

[0055] The measuring cylinder 10 has a column groove 11 at the top, and a column 9 is fixedly installed inside the metering hole 3. When the cover plate 8 is opened, the column groove 11 can be inserted and pulled into the column 9 to fix the measuring cylinder 10 in the metering hole 3, so as to receive different amounts of grain and realize flexible metering.

[0056] Specific Implementation Method Five: Combining Figure 9 and Figure 10 This embodiment describes an equal-volume quantitative sampling device for detecting multiple grains, which further includes a graduated cylinder 10. The graduated cylinder 10 has column grooves 11 at 90 degrees, and the inner wall of the quantitative hole 3 is fixedly installed with an insertion column 9.

[0057] The inner diameter of the groove 11 is adapted to the outer diameter of the insert 9, and the two can be vertically inserted and pulled together to fix the measuring cylinder 10 in the measuring hole 3.

[0058] Specific Implementation Method Six: Combination Figure 9 and Figure 10 This embodiment describes an equal-distribution quantitative sampling device for detecting multiple groups of grains. The hopper 2 is funnel-shaped with a large opening at the top and a small opening at the bottom, and the discharge cylinder 5 is cylindrical with the top and bottom connected.

[0059] The bottom outlet diameter of the hopper 2 and the top inlet diameter of the discharge cylinder 5 are consistent with the diameter of the metering orifice 3, and the axes of the three can slide along the same straight line with the slide 4.

[0060] The carriage box 1 has a sliding cavity 7 inside, the carriage 4 is disposed in the sliding cavity 7 and can slide horizontally within the sliding cavity 7;

[0061] A hopper 2 is welded and fixed to the top of the slide box 1. The hopper 2 is funnel-shaped and its bottom outlet is connected to the inside of the slide cavity 7, so that the grain can fall smoothly into the slide cavity 7.

[0062] A material discharge cylinder 5 is welded and fixed on one side of the slide box 1. The material discharge cylinder 5 is cylindrical, and its top inlet is connected to the inside of the slide cavity 7. The axis of the material discharge cylinder 5 is on the same horizontal line as the axis of the hopper 2, ensuring that the metering hole 3 can be accurately aligned with both at the same time.

[0063] Specific implementation method seven: Combining Figure 11 — Figure 12 This embodiment describes an equal-volume quantitative sampling device for detecting multiple grains. The slide box 1 has a support column 13 fixedly connected to its bottom outer wall. The support column 13 is evenly distributed around the slide box 1, and the bottom end faces of all support columns 13 are on the same horizontal plane.

[0064] The rear end of the carriage box 1 is also provided with a cover plate 8. One side of the cover plate 8 is rotatably connected to two ear plates welded on the carriage box 1 via a pin. The cover plate 8 can rotate around the pin. When the cover plate 8 rotates to fit against the rear end of the carriage box 1, it can close the opening at the rear end of the carriage box 1. When the cover plate 8 is rotated open, the metering hole 3 in the slide cavity 7 can be exposed.

[0065] The measuring cylinder 10 is a transparent cylindrical structure with a groove 11 on its circumference. An insert post 9 is welded and fixed to the inner wall of the measuring hole 3. The insert post 9 is adapted to the groove 11. When the measuring cylinder 10 is needed to receive different amounts of grain, the cover plate 8 is opened, the groove 11 on the top of the measuring cylinder 10 is aligned with the insert post 9 and inserted, and the measuring cylinder 10 is fixed below the measuring hole 3. At this time, the grain in the measuring hole 3 can fall into the measuring cylinder 10, realizing the quantitative distribution of different amounts of grain.

[0066] Specific implementation method eight: Combination Figure 1 — Figure 12 This embodiment describes a quantitative sampling device for equal distribution of multiple grains for detection. The slide box 1 is detachably connected to a rear cover 14 on the side away from the discharge cylinder 5, and to a front cover 15 on the side closer to the discharge cylinder 5. The dimensions of the rear cover 14 and the front cover 15 are adapted to the end face of the slide box 1.

[0067] When using this device to distribute multiple sets of grains in equal quantities, first pour the grains to be distributed into the hopper 2. At this time, the slide 4 is in its initial position, and the metering hole 3 on the slide 4 is aligned with the bottom outlet of the hopper 2. The grains in the hopper 2 fall into the metering hole 3 under the action of gravity until the metering hole 3 is filled with grains. Then, push the slide rods 12 on both sides of the slide 4 horizontally, so that the slide rods 12 slide along the limiting slide groove 6, causing the slide 4 to slide in the slide cavity 7. When the slide 4 slides to the point where the metering hole 3 is aligned with the top inlet of the discharge cylinder 5, the slide rod 12 slides to the maximum position of the limiting slide groove 6, and the slide 4 stops moving. The grains in the metering hole 3 fall into the container below through the discharge cylinder 5 under the action of gravity, completing the quantitative sampling of one set of grains. Then, pull the slide rod 12 in the opposite direction to pull the slide 4 back to its initial position, so that the metering hole 3 is aligned with the hopper 2 again. Repeat the above operation to complete the equal distribution of multiple sets of grains.

[0068] When it is necessary to quantitatively distribute different amounts of grain, open the cover plate 8, and fix the measuring cylinder 10 in the measuring hole 3 by cooperating with the insert post 9 in the measuring hole 3 through the column groove 11. Then, let the grain in the hopper 2 fall into the measuring hole 3 and enter the measuring cylinder 10. When the amount of grain in the measuring cylinder 10 reaches the required amount, remove the measuring cylinder 10. The operation is flexible and convenient and can meet the needs of quantitative distribution of different amounts of grain.

[0069] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A quantitative sampling device for detecting multiple grains using equal-volume distribution, characterized in that, Includes a carriage box (1), a hopper (2), a carriage (4), and a discharge cylinder (5); The slide box (1) has a sliding cavity (7) opened in the horizontal direction inside, and the slide (4) is adapted to be installed in the sliding cavity (7) and can slide along the length direction of the sliding cavity (7); The hopper (2) is installed on the top of the carriage box (1) and communicates with the slide cavity (7), and the dropping cylinder (5) is fixed to one side of the carriage box (1) and communicates with the slide cavity (7); The slide (4) has a metering hole (3) in the longitudinal direction. The metering hole (3) slides horizontally with the slide (4) to align with the bottom outlet of the hopper (2) or the top inlet of the discharge cylinder (5).

2. The equal-volume quantitative sampling device for detecting multiple grains according to claim 1, characterized in that, The slide (4) is fixedly connected to a slide rod (12) on its side. The slide box (1) is provided with a limiting groove (6) along the length of the slide cavity (7) corresponding to the position of the slide rod (12). The slide rod (12) is inserted into the limiting groove (6) and the two are fitted with a clearance, so that the slide rod (12) drives the slide (4) to slide horizontally, and the limiting groove (6) limits the slide (4).

3. The equal-volume quantitative sampling device for detecting multiple grains according to claim 1, characterized in that, The bottom of the slide (4) is equipped with a ball bearing plate (17). A set of ball bearing mounting holes are evenly opened on the ball bearing plate (17). Each ball bearing mounting hole is connected to a ball bearing (16) in a rolling manner. The top of the ball bearing (16) extends out of the ball bearing mounting hole and contacts the bottom outer wall of the slide (4).

4. The equal-volume quantitative sampling device for detecting multiple grains according to claim 1, characterized in that, The slide box (1) has a cover plate (8) movably connected to the outer wall of the side away from the discharge cylinder (5). The slide box (1) has two opposite ear plates fixed at the position corresponding to the cover plate (8). One side of the cover plate (8) is rotatably connected to the two ear plates through a shaft, so that the cover plate (8) can rotate around the shaft.

5. The equal-volume quantitative sampling device for detecting multiple grains according to claim 1, characterized in that, It also includes a measuring cylinder (10), which has a column groove (11) every 90 degrees, and a column (9) is fixedly installed on the inner wall of the measuring hole (3). The inner diameter of the groove (11) is adapted to the outer diameter of the insert (9), and the two can be vertically inserted and pulled together to fix the measuring cylinder (10) in the measuring hole (3).

6. The equal-volume quantitative sampling device for detecting multiple grains according to claim 1, characterized in that, The hopper (2) is funnel-shaped with a large opening at the top and a small opening at the bottom, and the discharge cylinder (5) is cylindrical with the top and bottom connected. The bottom outlet diameter of the hopper (2) and the top inlet diameter of the discharge cylinder (5) are consistent with the diameter of the metering hole (3), and the axes of the three can slide along the same straight line as the slide (4).

7. The equal-volume quantitative sampling device for detecting multiple grains according to claim 4, characterized in that, The bottom outer wall of the carriage box (1) is fixedly connected with a support column (13). The support column (13) is evenly distributed around the carriage box (1), and the bottom end face of all the support columns (13) is on the same horizontal plane.

8. The equal-volume quantitative sampling device for detecting multiple grains according to claim 7, characterized in that, The carriage box (1) has a rear cover (14) detachably connected to the side face away from the discharge cylinder (5), and a front cover (15) detachably connected to the side face near the discharge cylinder (5). The dimensions of the rear cover (14) and the front cover (15) are adapted to the end face of the carriage box (1).

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