Multi-station sampling device for seed detection

Abstract

The utility model relates to a sampling device for multi-station seed detection. The sampling device comprises a barrel with a hollow structure, and a sampling assembly is arranged in the cylinder body. The sampling assembly comprises a sampling head close to one end of the barrel for sampling, a sampling rod connected with the sampling head and a pushing piece positioned at one end of the barrel far away from the sampling head. A connecting assembly is arranged on the circumferential side face of the barrel. According to the multi-station sampling device, multiple parts of multi-station samples can be obtained from equidistant positions of a seed pile at the same height through one-time sampling work, and the working efficiency is effectively improved. Moreover, the nesting design of the sampling assembly and the cylinder facilitates safe placement of the sampling device when the sampling device is idle, avoids possible damage caused by direct exposure of the sampling head to the outside, and avoids mutual collision damage among a plurality of sampling devices, so that subsequent multi-station seed sampling work is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of seed testing technology, and in particular to a sampling device for multi-station seed testing. Background Technology

[0002] Seed testing is an indispensable and crucial step in agricultural production, seed research and development, and seed quality supervision. By sampling and testing seeds, key indicators such as germination rate, purity, vigor, and pest and disease infection status can be assessed, thus providing a scientific basis for seed breeding, sales, and planting. However, existing seed sampling devices have many shortcomings in practical applications and urgently need improvement.

[0003] Existing sampling devices have relatively simple structural designs, with the sampling head typically exposed to the outside, making them susceptible to damage during idle periods or transportation. For example, the sampling head may deform or be damaged due to impacts, affecting sampling results. Furthermore, the lack of effective protective measures between multiple sampling devices makes them prone to collisions during storage or handling, further reducing the device's lifespan.

[0004] Chinese patent document CN216449197U discloses a sampling device for seed detection, including a column, a storage frame, and a lifting frame. A drive motor is fixedly installed on the top of the column, and the drive motor is connected to an inner slider that slides vertically inside the column. One side of the inner slider is fixedly connected to the lifting frame. The lifting frame is a hollow rectangular frame structure, and a rotating rod is rotatably installed inside. One end of a telescopic rod is fixedly connected to the outer wall of the rotating rod. A connecting hole is opened through the other end of the telescopic rod near its end face. An adjusting rod is installed through the connecting hole and is rotatably connected to the connecting hole. One end of the adjusting rod is fixedly connected to a support rod, which is horizontally set. The other end of the adjusting rod passes through a mounting plate and is connected to a flipping motor.

[0005] However, this seed sampling device is a single-station design, meaning it can only obtain one seed sample at a time. When testing large seed piles or multiple batches of seeds, this requires repeated operations, resulting in low efficiency. For example, when testing seed quality in a large seed warehouse, workers need to take samples multiple times from different locations, consuming significant time and manpower. Furthermore, the single-station sampling device cannot achieve equidistant multi-station sampling, making it difficult to guarantee sample representativeness and potentially leading to biased test results.

[0006] With the continuous development of seed testing technology and the increasing demands for testing efficiency, the market urgently needs a seed sampling device that can achieve multi-station sampling, has a simple structure, is safe and durable, and is easy to operate. This device should not only meet the sampling needs of a single station but also be able to achieve multi-station equidistant sampling through flexible combinations, improving sample representativeness and testing efficiency. At the same time, the device should possess good safety and durability, reducing damage caused by external factors and lowering maintenance costs.

[0007] In summary, existing seed sampling devices have significant shortcomings in terms of multi-station sampling, safety, durability, and ease of operation, failing to meet the high-efficiency, accurate, and diverse needs of modern seed testing. Therefore, developing a novel multi-station seed testing sampling device has significant practical implications and broad application prospects.

[0008] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a sampling device for multi-station seed testing, comprising a hollow cylindrical body. A sampling assembly is disposed inside the cylindrical body. The sampling assembly includes a sampling head near the sampling end of the cylindrical body, a sampling rod connected to the sampling head, and a pushing member located at the end of the cylindrical body away from the sampling head. A connecting assembly is disposed on the circumferential side of the cylindrical body.

[0010] According to a preferred embodiment, the connecting assembly includes a fastener covering the circumferential side of the cylinder. The fastener is configured as a multifaceted cylinder. Several sides of the fastener are alternately provided with grooves or blocks.

[0011] According to a preferred embodiment, the slot and the insert fit together, and the length of the slot and the insert in the vertical direction is less than the length of the fastener in the vertical direction.

[0012] According to a preferred embodiment, a first magnetic attractor is provided on the vertically downward bottom surface of the slot or on the side near the fixing member. A second magnetic attractor is provided on the vertically downward bottom surface of the insert or at a position away from the fixing member. The first and second magnetic attractors attract each other.

[0013] According to a preferred embodiment, an elastic element is sleeved on the pusher. One end of the elastic element is connected to the pusher, and the other end of the elastic element is connected to the inner wall of the cylinder.

[0014] According to a preferred embodiment, the pusher is located inside one end of the cylinder. A limiting rod is provided on the pusher, extending radially through the cylinder. A limiting slit is provided on the side of the cylinder to accommodate the limiting rod.

[0015] According to a preferred embodiment, an annular platform is provided on the inner wall of the cylinder, and the inner diameter of the annular platform is larger than the outer diameter of the sampling rod. An elastic element is connected to the annular platform.

[0016] According to a preferred embodiment, the outer diameter of the sampling head is smaller than the inner diameter of the cylinder. When the pusher compresses the elastic member, the portion of the sampling head extending out of the cylinder is cone-shaped.

[0017] According to a preferred embodiment, the sampling rod is provided with a plurality of sampling slots arranged at equal intervals along the vertical direction. The sampling slots are inclined downwards vertically.

[0018] According to a preferred embodiment, a positioning block is further provided on the outer periphery of the sampling rod. A positioning groove corresponding to the positioning block is provided on the inner wall of the cylinder. Attached Figure Description

[0019] Figure 1 This is a simplified structural diagram of a multi-station seed detection sampling device after pressing, according to a preferred embodiment of the present invention.

[0020] Figure 2 This is a simplified structural diagram of a multi-station seed detection sampling device without pressing, according to a preferred embodiment of this utility model.

[0021] Figure 3 This is a simplified cross-sectional view of a multi-station seed detection sampling device according to a preferred embodiment of the present invention.

[0022] Figure 4 This is a simplified top view of the unpressed structure of a multi-station seed detection sampling device according to a preferred embodiment of this utility model.

[0023] List of reference numerals

[0024] 100: Cylinder body; 101: Annular platform; 102: Limiting slit; 103: Positioning groove; 200: Sampling component; 201: Sampling head; 202: Sampling rod; 203: Pushing component; 204: Elastic component; 205: Sampling groove; 206: Limiting rod; 207: Positioning block; 300: Connecting component; 301: Fixing component; 302: Insert groove; 303: Insert block. Detailed Implementation

[0025] The following is a detailed explanation with reference to the accompanying drawings.

[0026] Example 1

[0027] This utility model provides a sampling device for multi-station seed detection, such as... Figure 1 and Figure 2 As shown, the device includes a hollow cylindrical body 100. A sampling assembly 200 is disposed inside the cylindrical body 100. The sampling assembly 200 includes a sampling head 201 near the sampling end of the cylindrical body 100, a sampling rod 202 connected to the sampling head 201, and a pushing member 203 located at the end of the cylindrical body 100 away from the sampling head 201. A connecting assembly 300 is disposed on the circumferential side of the cylindrical body 100. This connecting assembly 300 can be connected to other sampling devices. Through the fixed connection of the connecting assembly 300, equidistant multi-station seed detection sampling can be achieved. Therefore, this invention enables the acquisition of multiple multi-station samples from equidistant positions at the same height of the seed pile in a single sampling operation, effectively improving work efficiency. Furthermore, the nested design of the sampling component 200 and the cylinder 100 facilitates the safe placement of the sampling device when it is not in use, avoids the sampling head 201 being directly exposed to the outside and causing possible damage, and avoids collisions between several sampling devices, thereby facilitating subsequent multi-station seed sampling work.

[0028] The sampling device of this utility model has a simple structure and can be multifunctionally combined through the connecting component 300. It can be used not only for seed sampling at a single station, but also for seed sampling at multiple stations at equal intervals, effectively improving the scope of application and work efficiency of the device.

[0029] According to a preferred embodiment, the connecting assembly 300 includes a fastener 301 covering the circumferential sides of the cylindrical body 100. The fastener 301 is configured as a multi-faceted prism. Slots 302 or inserts 303 are alternately arranged on several sides of the fastener 301. In this invention, the fastener 301 is preferably a hexagonal prism. Thus, several devices can be respectively fixed to six sides of the hexagonal prism for extended multi-station seed sampling.

[0030] According to a preferred embodiment, the slot 302 and the insert 303 fit together, and the lengths of the slot 302 and the insert 303 in the vertical direction are less than the length of the fixing member 301 in the vertical direction. The slots 302 and the inserts 303 on different sampling devices can fit together to achieve the connection of at least two sampling devices. Thus, this invention can achieve multi-station seed sampling by connecting several sampling devices. Furthermore, the lengths of the slots 302 and the inserts 303 are set to avoid misalignment between adjacent area devices, and the fitting connection prevents the insert 303 from sliding out of the slot 302, improving the stability of the connection.

[0031] According to a preferred embodiment, a first magnetic attractor is provided on the vertically downward bottom surface of the groove 302 or on the side near the fixing member 301. A second magnetic attractor is provided on the vertically downward bottom surface of the insert 303 or at a position away from the fixing member 301. The first and second magnetic attractors attract each other. The first and second magnetic attractors can be a combination of iron products and magnets, so that when the insert 303 enters the groove 302, it is magnetically fixed to prevent adjacent sampling devices from slipping off. Preferably, a rubber pad or elastic sealing ring can be provided on the mating surface of the groove 302 and the insert 303 to increase friction and sealing, preventing the sampling device from loosening or falling off due to vibration or external force.

[0032] According to a preferred embodiment, such as Figure 3 As shown, an elastic element 204 is sleeved on the pusher 203. One end of the elastic element 204 is connected to the pusher 203, and the other end is connected to the inner wall of the cylinder 100. After sampling the multi-station seeds, the elastic element 204 can assist in the extraction of the seed samples. Furthermore, the elastic element 204 is also used to limit the sampling component 200 inside the cylinder 100, preventing the sampling component 200 from accidentally dislodging during the sliding process of the cylinder 100.

[0033] According to a preferred embodiment, the pusher 203 is located inside one end of the cylinder 100. A limiting rod 206 is provided on the pusher 203, extending radially through the cylinder 100. A limiting slot 102 is provided on the side of the cylinder 100 to accommodate the limiting rod 206. The limiting rod 206 can be a cylindrical rod located vertically downwards from the bottom plate of the pusher 203, used to limit the range of vertical movement of the pusher 203. The limiting rod 206 is located within the limiting slot 102 on the side of the cylinder 100. The two limiting slots 102 can be arranged opposite each other to accommodate the limiting rod 206. Thus, the cooperative arrangement of the limiting rod 206 and the limiting slot 102 restricts the extension range of the sampling component 200 within the length range of the limiting slot 102, thereby preventing the sampling component 200 from slipping out.

[0034] According to a preferred embodiment, an annular platform 101 is provided on the inner wall of the cylinder 100, and the inner diameter of the annular platform 101 is larger than the outer diameter of the sampling rod 202. An elastic element 204 is connected to the annular platform 101. The annular platform 101 is used to connect one end of the elastic element 204. The annular platform 101 is designed to align with the pusher 203, facilitating the installation of the spring element 204, and also to limit the horizontal swaying of the sampling rod 202, avoiding abnormal vibration during sampling.

[0035] According to a preferred embodiment, the outer diameter of the sampling head 201 is smaller than the inner diameter of the cylinder 100. When the pusher 203 compresses the elastic member 204, the portion of the sampling head 201 extending out of the cylinder 100 is conical. The sampling head 201 can be conical in design to facilitate sampling from the seed pile. Furthermore, the sampling head 201 can also be shovel-shaped. The sampling head 201 can be configured into different shapes as needed. Preferably, the sampling head 201 can be made of stainless steel or high-strength alloy material, with a corrosion-resistant surface treatment to adapt to different seed pile environments and prevent rust or corrosion. Its outer surface can also be provided with anti-slip texture to increase friction with the seed pile and facilitate sampling.

[0036] According to a preferred embodiment, the sampling rod 202 is provided with a plurality of sampling slots 205 arranged at equal intervals along the vertical direction. The sampling slots 205 are inclined downwards. The sampling slots 205 are used to carry the seeds sampled from the seed pile out of the seed pile. The vertical downward bottom surface of the sampling slots 205 is inclined to form a funnel-like shape, thereby facilitating seed sampling, reducing sampling difficulty, and improving sampling efficiency. Preferably, the inclination angle of the sampling slots 205 can be adjusted according to the seed size and shape. For example, for smaller seeds, the inclination angle can be set to 30° to 45° to better guide the seeds into the sampling slots. The bottom of the sampling slots 205 may also be provided with micro-holes to expel excess air and reduce resistance during sampling.

[0037] According to a preferred embodiment, such as Figure 4 As shown, a positioning block 207 is also provided on the outer periphery of the sampling rod 202. The inner wall of the cylinder 100 is provided with a positioning groove 103 corresponding to the positioning block 207. The cooperation between the positioning block 207 and the positioning groove 103 is used to reposition the sampling rod 202 to prevent it from deflecting or other situations.

[0038] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple inventive concepts; phrases such as "preferred" or "according to a preferred embodiment" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the feature introduced by "preferred" is only an optional mode and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A sampling device for multi-station seed testing, characterized in that, The device includes a hollow cylindrical body (100) with a sampling assembly (200) inside. The sampling assembly (200) includes a sampling head (201) near the sampling end of the cylindrical body (100), a sampling rod (202) connected to the sampling head (201), and a pusher (203) located at the end of the cylindrical body (100) away from the sampling head (201). A connecting assembly (300) is provided on the circumferential side of the cylinder (100).

2. The sampling device for multi-station seed detection according to claim 1, characterized in that, The connecting assembly (300) includes a fastener (301) covering the circumferential side of the cylindrical body (100), wherein the fastener (301) is configured as a multi-faceted column, and grooves (302) or inserts (303) are alternately arranged on several sides of the fastener (301).

3. The sampling device for multi-station seed detection according to claim 2, characterized in that, The slot (302) and the insert (303) fit together, and The length of the groove (302) and the insert (303) in the vertical direction is less than the length of the fastener (301) in the vertical direction.

4. The sampling device for multi-station seed detection according to claim 3, characterized in that, A first magnetic attractor is provided on the vertically downward bottom surface of the groove (302) or on the side near the fixing member (301), and a second magnetic attractor is provided on the vertically downward bottom surface of the insert (303) or at a position away from the fixing member (301). The first magnetic attractor and the second magnetic attractor attract each other.

5. The sampling device for multi-station seed detection according to claim 4, characterized in that, An elastic element (204) is sleeved on the pushing member (203), wherein, One end of the elastic element (204) is connected to the pusher (203), and the other end of the elastic element (204) is connected to the inner wall of the cylinder (100).

6. The sampling device for multi-station seed testing according to claim 5, characterized in that, The pusher (203) is located inside one end of the cylinder (100), wherein, The pusher (203) is provided with a limiting rod (206) that penetrates the radial direction of the cylinder (100), and the side of the cylinder (100) is provided with a limiting slit (102) for accommodating the limiting rod (206).

7. The sampling device for multi-station seed detection according to claim 6, characterized in that, An annular platform (101) is provided on the inner wall of the cylinder (100), and the inner diameter of the annular platform (101) is larger than the outer diameter of the sampling rod (202). The elastic element (204) is connected to the annular platform (101).

8. The sampling device for multi-station seed testing according to claim 7, characterized in that, The outer diameter of the sampling head (201) is smaller than the inner diameter of the cylinder (100), wherein, When the pusher (203) compresses the elastic member (204), the portion of the sampling head (201) extending out of the cylinder (100) is cone-shaped.

9. The sampling device for multi-station seed detection according to claim 8, characterized in that, The sampling rod (202) is provided with several sampling slots (205) arranged at equal intervals along the vertical direction, wherein, The sampling slot (205) is inclined downwards vertically.

10. The sampling device for multi-station seed detection according to claim 9, characterized in that, The outer periphery of the sampling rod (202) is also provided with a positioning block (207), and the inner wall of the cylinder (100) is provided with a positioning groove (103) corresponding to the positioning block (207).

Images