Fixed-point stratified sampling device for grain inspection

Abstract

The utility model belongs to the technical field of grain inspection, and particularly discloses a fixed-point stratified sampling device for grain inspection, which comprises a sampling tube, the bottom of the sampling tube is fixedly connected with a sampling cone, and a stratified sampling component is arranged in the sampling tube; the stratified sampling assembly comprises three sampling ports, a partition plate is arranged on the front side of each sampling port, a sliding groove is formed in the sampling pipe, the partition plates are in sliding connection with the sliding groove, a driving assembly is arranged at the top of the sampling pipe and comprises a gear, and a rotating rod is fixedly connected to the interior of the gear; through the arrangement of the stratified sampling assembly, stratified sampling can be carried out on grains at a time, specifically, when a sampling pipe is inserted into the grains, a rotating rod is rotated, then a connecting rod is driven to move, a partition plate can be driven to move, a sampling opening is opened at the moment, and the grains enter a storage chamber to be sampled; the sampling efficiency can be greatly improved, and time and labor cost are saved.

Description

Technical Field

[0001] The present application relates to the technical field of grain inspection, and more specifically, to a fixed-point stratified sampling device for grain inspection. Background Art

[0002] In order to ensure the quality and safety of grain, it is necessary to take samples for grain inspection. Through sampling inspection, various indicators of grain can be evaluated, such as moisture, impurity content, mold contamination, heavy metal content, etc., to ensure that the grain meets the requirements of national and international standards. This helps to protect the health of consumers and ensure that the quality of grain is maintained and controlled during production, transportation and processing.

[0003] When inspecting grain, a sampler is generally used to sample the grain. In order to more comprehensively cover the variation range of the entire grain batch, thereby reducing sampling bias and improving the accuracy and reliability of the inspection results, stratified sampling is required. However, most existing samplers are single-type instruments, which require multiple repetitions for stratified sampling, increasing the labor burden and time of samplers. Utility Model Content

[0004] In order to solve the above problems, the present application provides a fixed-point stratified sampling device for grain inspection.

[0005] The present application provides a fixed-point stratified sampling device for grain inspection using the following technical solution:

[0006] A fixed-point stratified sampling device for grain inspection comprises a sampling tube, a sampling cone is fixedly connected to the bottom of the sampling tube, and a stratified sampling component is arranged inside the sampling tube;

[0007] The stratified sampling assembly includes a sampling port, the number of the sampling ports is set to three, a partition is provided on the front side of each sampling port, a slide groove is provided inside the sampling tube, the partition is slidably connected to the slide groove, and a driving assembly is provided on the top of the sampling tube;

[0008] The driving assembly includes a gear, a rotating rod is fixedly connected inside the gear, a connecting shell is fixedly connected to the top of the sampling tube, the connecting shell is communicated with the sampling tube, the gear is located inside the connecting shell, an arc groove is opened inside the sampling tube, an arc rack plate is slidably connected inside the arc groove, a connecting rod is fixedly connected to the bottom of the arc rack plate, the connecting rod is fixedly connected to the partition, and the arc rack plate is meshed with the gear.

[0009] Through the above technical solution, the stratified sampling component can greatly improve the sampling efficiency and save time and labor costs compared with multiple individual samplings.

[0010] Furthermore, one end of the rotating rod is slidably connected to a connecting plate, a friction groove is provided inside the connecting plate, a friction block is provided on the outer wall of the rotating rod, and one end of the connecting plate is fixedly connected to a clamping block.

[0011] Through the above technical solution, when in a stationary state or without external force, the connecting plate will not move easily, so that the partition is always kept in an open state to sample the grain.

[0012] Furthermore, the clamping block is engaged with the tooth gap on the gear, and the top of the rotating rod is fixedly connected with a rotating handle.

[0013] Through the above technical solution, the block can limit the position of the gear.

[0014] Furthermore, the rotating rod is rotatably connected to the connecting shell, and a removal component is provided on a side of the sampling tube away from the partition.

[0015] Furthermore, the removal component includes a pull plate, the number of which is set to be multiple, each pull plate corresponds to the position of the partition, and multiple material guide grooves are opened at one end of the sampling tube away from the partition, and the material guide grooves are all slidably connected to the pull plate.

[0016] Through the above technical solution, the removal component can export grains in batches to avoid mixing of grains at different levels.

[0017] Furthermore, a plurality of fixing blocks are fixedly connected inside the sampling tube, and a storage chamber is formed between every two fixing blocks, and the storage chamber is used to store the sampled grain.

[0018] Furthermore, a blanking plate is fixedly connected to the top of each fixed block, each blanking plate is inclined, and the lowest end of each blanking plate is in the same horizontal plane as the lowest end of the pulling plate.

[0019] Through the above technical solution, when the partition is opened to feed the grain, the grain will slide in the inclined direction and enter the storage chamber. When the pull plate is opened, due to the inclined setting of the lower plate, the grain will be affected by gravity and slide downward along the inclined surface of the lower plate, and flow out of the storage chamber in a natural manner.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] The utility model can sample grains in layers at one time by setting a layered sampling component. Specifically, when the sampling tube is inserted into the grain, the rotating rod is rotated, thereby driving the connecting rod to move, and then driving the partition to move. At this time, the sampling port is opened, so that the grains can enter the storage chamber for sampling. Compared with multiple separate samplings, the sampling efficiency can be greatly improved, saving time and labor costs.

[0022] The utility model arranges an inclined feed plate. When the partition is opened to feed, the grain will slide in the inclined direction and enter the storage chamber. When the pull plate is opened, due to the inclined arrangement of the feed plate, the grain will be affected by gravity and slide downward along the inclined surface of the feed plate, and flow out of the storage chamber in a natural flow manner, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the sampling tube of the utility model;

[0025] Figure 3 This is a schematic diagram of the connection structure between the gear and the rack plate of the utility model;

[0026] Figure 4 It is a schematic diagram of the connection structure between the connecting plate and the card block of the utility model.

[0027] Explanation of the reference numerals: 1. sampling tube; 2. partition; 3. sampling cone; 4. sampling port; 5. blanking plate; 6. connecting shell; 7. pull plate; 8. fixing block; 9. turning handle; 10. gear; 11. arc-shaped rack plate; 12. connecting plate; 13. turning rod; 14. clamping block; 15. connecting rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0029] Reference Figure 1-Figure 4 , a fixed-point stratified sampling device for grain inspection, comprising a sampling tube 1, a sampling cone 3 is fixedly connected to the bottom of the sampling tube 1, and a stratified sampling component is arranged inside the sampling tube 1;

[0030] The stratified sampling assembly includes a sampling port 4, the number of the sampling ports 4 is set to three, a partition 2 is provided on the front side of each sampling port 4, a slide groove is provided inside the sampling tube 1, the partition 2 is slidably connected to the slide groove, and a driving assembly is provided on the top of the sampling tube 1;

[0031] The driving assembly includes a gear 10, a rotating rod 13 is fixedly connected inside the gear 10, a connecting shell 6 is fixedly connected to the top of the sampling tube 1, the connecting shell 6 is communicated with the sampling tube 1, the gear 10 is located inside the connecting shell 6, an arc groove is opened inside the sampling tube 1, an arc rack plate 11 is slidably connected inside the arc groove, a connecting rod 15 is fixedly connected to the bottom of the arc rack plate 11, the connecting rod 15 is fixedly connected to the partition 2, and the arc rack plate 11 is meshed with the gear 10.

[0032] By setting the driving component, the partition 2 can be driven to open and sample grains at different depths. Specifically, when the sampling tube 1 is inserted into the grain, the partition 2 is in a closed state. After the insertion is completed, the rotating rod 13 is rotated, and the rotating rod 13 drives the gear 10 to rotate. The rotation of the gear 10 drives the arc-shaped rack plate 11 to slide inside it along the arc-shaped groove trajectory, thereby driving the bottom connecting rod 15 to slide and connect in the sliding groove inside the sampling tube 1. When the connecting rod 15 moves, it can drive the partition 2 to move. At this time, the sampling port 4 is opened, allowing the grain to enter the storage chamber to sample the grain.

[0033] Reference Figure 3-Figure 4 One end of the rotating rod 13 is slidably connected to a connecting plate 12, a friction groove is provided inside the connecting plate 12, a friction block is provided on the outer wall of the rotating rod 13, one end of the connecting plate 12 is fixedly connected to a clamping block 14, the clamping block 14 is engaged with the tooth gap on the gear 10, and the top of the rotating rod 13 is fixedly connected to a rotating handle 9.

[0034] When the rotating rod 13 drives the gear 10 to rotate, and then drives the bottom partition 2 to fully open, the connecting plate 12 can be moved downward at this time, thereby driving the block 14 to move downward and engage with the gap of the gear 10, fixing the gear 10 to limit the position, so that the partition 2 always remains in an open state. Because the outer wall of the rotating rod 13 is provided with a friction block, and the interior of the connecting plate 12 is provided with a friction groove, a certain friction force will be generated between the friction block and the friction groove, so when the connecting plate 12 moves downward, it will encounter a certain resistance. In a stationary state or without external force, the connecting plate 12 will not move easily, so that the partition 2 always remains in an open state to sample the grain. When closing, lift the connecting plate 12 to drive the block 14 to move upward, and rotate the rotating rod 13 in the opposite direction.

[0035] Reference Figure 1-Figure 2 The rotating rod 13 is rotatably connected to the connecting shell 6. A removal assembly is provided on the side of the sampling tube 1 away from the partition 2. The removal assembly includes a pull plate 7. The number of the pull plates 7 is set to be multiple. Each pull plate 7 corresponds to the position of the partition 2. A plurality of material guide grooves are opened at one end of the sampling tube 1 away from the partition 2. The material guide grooves are all slidably connected to the pull plates 7.

[0036] When sampling is completed, the pull plate 7 is lifted upward. The pull plate 7 is a prior art and can remain in a closed state when no external force is applied. After force is applied, it can slide upward inside the material guide trough to export the grain inside the storage chamber. The grain can be exported in batches to avoid mixing of grains at different layers.

[0037] Reference Figure 1-Figure 2 A plurality of fixed blocks 8 are fixedly connected inside the sampling tube 1, and a storage chamber is formed between every two fixed blocks 8. The storage chamber is used to store the sampled grain. A blanking plate 5 is fixedly connected to the top of each fixed block 8. Each blanking plate 5 is inclined, and the lowest end of each blanking plate 5 is on the same horizontal plane as the lowest end of the pulling plate 7.

[0038] Since the feed plate 5 is inclined, when the partition 2 is opened to feed the food, the food will slide in the inclined direction and enter the storage chamber. When the pull plate 7 is opened, due to the inclined setting of the feed plate 5, the food will be affected by gravity and slide downward along the inclined surface of the feed plate 5, and flow out of the storage chamber in a natural manner.

[0039] Working principle: When in use, insert the sampling tube 1 and the sampling cone 3 at the bottom into the grain, and then the partition 2 is in a closed state. After the insertion is completed, rotate the rotating rod 13, and the rotating rod 13 drives the gear 10 to rotate. The rotation of the gear 10 drives the arc-shaped rack plate 11 to slide inside it along the arc-shaped groove trajectory, and then drives the bottom connecting rod 15 to slide and connect in the sliding groove inside the sampling tube 1. When the connecting rod 15 moves, it can drive the partition 2 to move. At this time, the sampling port 4 is opened. At this time, the connecting plate 12 is moved downward, and then the block 14 is driven to move downward, and it is engaged with the gap of the gear 10, and the gear 10 is fixed and limited, so that the partition 2 always remains in an open state, so that the grain enters the storage chamber and the grain is sampled.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fixed-point stratified sampling device for grain inspection, characterized in that: include: A sampling tube (1), wherein a sampling cone (3) is fixedly connected to the bottom of the sampling tube (1), and a layered sampling component is provided inside the sampling tube (1); A layered sampling assembly, comprising a sampling port (4), wherein the number of the sampling ports (4) is set to three, a partition (2) is provided on the front side of each sampling port (4), a slide groove is provided inside the sampling tube (1), the partition (2) is slidably connected to the slide groove, and a driving assembly is provided on the top of the sampling tube (1); The driving assembly comprises a gear (10), a rotating rod (13) is fixedly connected inside the gear (10), a connecting shell (6) is fixedly connected to the top of the sampling tube (1), the connecting shell (6) is communicated with the sampling tube (1), the gear (10) is located inside the connecting shell (6), an arc groove is provided inside the sampling tube (1), an arc rack plate (11) is slidably connected inside the arc groove, a connecting rod (15) is fixedly connected to the bottom of the arc rack plate (11), the connecting rod (15) is fixedly connected to the partition plate (2), and the arc rack plate (11) is meshed with the gear (10).

2. A fixed-point stratified sampling device for grain inspection according to claim 1, characterized in that: One end of the rotating rod (13) is slidably connected to a connecting plate (12), a friction groove is provided inside the connecting plate (12), a friction block is provided on the outer wall of the rotating rod (13), and one end of the connecting plate (12) is fixedly connected to a clamping block (14).

3. A fixed-point stratified sampling device for grain inspection according to claim 2, characterized in that: The clamping block (14) is engaged with the tooth gap on the gear (10), and the top of the rotating rod (13) is fixedly connected to a rotating handle (9).

4. A fixed-point stratified sampling device for grain inspection according to claim 1, characterized in that: The rotating rod (13) is rotatably connected to the connecting shell (6), and a removal assembly is provided on a side of the sampling tube (1) away from the partition (2).

5. A fixed-point stratified sampling device for grain inspection according to claim 4, characterized in that: The removal assembly comprises a pull plate (7), the number of the pull plates (7) being set to be multiple, each of the pull plates (7) corresponding to the position of the partition plate (2), and a plurality of material guide grooves are provided at one end of the sampling tube (1) away from the partition plate (2), and the material guide grooves are all slidably connected to the pull plate (7).

6. A fixed-point stratified sampling device for grain inspection according to claim 5, characterized in that: A plurality of fixing blocks (8) are fixedly connected to the interior of the sampling tube (1), and a storage chamber is formed between every two fixing blocks (8), wherein the storage chamber is used to store sampled grain.

7. A fixed-point stratified sampling device for grain inspection according to claim 6, characterized in that: The top of each fixed block (8) is fixedly connected to a blanking plate (5), each blanking plate (5) is arranged to be inclined, and the lowest end of each blanking plate (5) is in the same horizontal plane as the lowest end of the pulling plate (7).

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