A disposable multi-stage grain sampler
By designing a disposable multi-stage grain sampler and adopting step-by-step sampling and stirring rod technology, the problem of time-consuming and labor-intensive cyclical grain samplers was solved, achieving uniform mixing and efficient sampling, and improving sampling accuracy and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI KEMAO GRAIN OIL & FOOD QUALITY INSPECTION CO LTD
- Filing Date
- 2025-10-29
- Publication Date
- 2026-07-14
AI Technical Summary
The existing grain sampler requires the grain to be circulated three times, from the feed hopper to the receiver and then back into the hopper, which is time-consuming and labor-intensive, resulting in inconvenience in use.
A disposable multi-stage grain sampler was designed, including a support frame and a multi-stage sampler assembly, comprising a first-stage, second-stage, and third-stage sampler. It employs an electromagnetic control valve and a stirring rod to achieve uniform mixing of samples through step-by-step sample division and instant stirring, thereby reducing errors and improving sample division accuracy and efficiency.
It achieves uniform mixing of samples, reduces sampling errors, improves sampling accuracy and work efficiency, reduces manual operation, and is suitable for handling bulk and large-volume grain samples.
Smart Images
Figure CN224500124U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of grain sampling technology, and in particular to a disposable multi-stage grain sampler. Background Technology
[0002] When inspecting the quality of grains, in addition to taking a certain number of samples, whether the samples are thoroughly mixed and whether the required representative samples are taken in the correct quantities are also important factors affecting the grain inspection results. Sampling is the process of thoroughly mixing the original sample and then further dividing it into average samples or test samples to meet the needs of grain inspection.
[0003] In the existing technology, the normal process of grain sampling is that the grain flows down from the feed hopper of the grain sampler to the receiving device as one cycle. According to regulations, the grain needs to be circulated through the sampler three times.
[0004] Regarding the aforementioned technologies, the process of feeding grain from the grain sampler's hopper into the receiving container and then back into the hopper for reprocessing involves three cycles, wasting personnel time and labor, thus making it inconvenient for users. Summary of the Invention
[0005] To address the problem that grains are repeatedly fed from the grain sampler's hopper into the receiving container and then poured back into the hopper for reprocessing, requiring three cycles that waste personnel time and are inconvenient for users, this application provides a disposable multi-stage grain sampler.
[0006] This application provides a disposable multi-stage grain sampler, which adopts the following technical solution:
[0007] A disposable multi-stage grain sampler includes a support frame for overall support and a multi-stage sampling assembly for multi-stage grain sampling. The multi-stage sampling assembly is mounted on the support frame and includes a primary sampler, a secondary sampler, and a tertiary sampler. The bottom end of the primary sampler is connected to the top end of the secondary sampler, and the bottom end of the secondary sampler is connected to the top end of the tertiary sampler. The bottom end of the tertiary sampler is provided with a receiver for carrying the grain after multi-stage sampling. The secondary and tertiary samplers are provided with mixing components for mixing grain samples.
[0008] By adopting the above technical solution, through the step-by-step sampling of primary, secondary and tertiary samplers, the sample can be mixed more evenly. Compared with single-stage sampling, it can more evenly cover the overall characteristics of the original sample, greatly reduce the error caused by uneven sample distribution, improve the sampling accuracy, and make the final sample better reflect the overall quality of the grain. It realizes three-stage sampling with one feeding, eliminating the need for manual feeding and improving work efficiency.
[0009] Preferably, the primary sampler includes a feed hopper, an electromagnetic control valve is installed below the feed hopper, a sampler body is installed below the electromagnetic control valve, and a discharge pipe is connected to the lower part of the sampler body.
[0010] By adopting the above technical solution, the sequential connection of the feed hopper, electromagnetic control valve, sampler body, and discharge pipe forms a complete first-level sample separation process of "receiving-controlling-sampling-guiding". Each component has a clear function and works together to efficiently process the original sample and achieve precision in the sample separation process through electromagnetic control. This provides a stable and uniform initial sample for subsequent second- and third-level sample separation, thereby improving the reliability of the entire multi-level sample separation system from the source.
[0011] Preferably, the structure of the secondary and tertiary samplers is the same as that of the primary sampler.
[0012] By adopting the above technical solutions, the unified structural design means that the sampling principles (such as flow control and diversion ratio) of each level of the sampler are consistent, which can avoid the differences in sampling logic caused by different structures. The flow control accuracy of the electromagnetic control valve remains consistent in each level of the sampler, which can ensure that the sample size reduction and diversion ratio remain stable from the first to the third level of sampling, reduce the error introduced by structural differences, and improve the accuracy and reliability of the entire multi-stage sampling system.
[0013] Preferably, the mixing assembly includes a drive motor, a connecting column, and a stirring rod. The drive motor is mounted on the feed hoppers of the secondary and tertiary samplers. The output end of the drive motor is connected to the connecting column. The stirring rod is mounted on the connecting column. The stirring rod and the connecting column are located inside the feed hoppers of the secondary and tertiary samplers.
[0014] By adopting the above technical solution, the mixing component is directly set in the feed hopper of the secondary and tertiary samplers to stir the samples entering the next stage of sampling in real time. When the grain enters the feed hopper of this stage from the upper stage sampler, the stirring rod can quickly break up any local aggregation that may exist in the sample, so that the sample is in a uniform state before entering the main body of this stage sampler, providing more representative initial materials for subsequent sampling and reducing sampling deviation from the source.
[0015] Preferably, the top of the feed hopper of the primary sampler is provided with an auxiliary component for assisting the feed hopper in feeding, and the auxiliary component is funnel-shaped.
[0016] By adopting the above technical solution, the upper opening of the funnel-shaped auxiliary component is usually larger than the feed inlet of the feed hopper itself, which can more easily receive grain samples poured in from the outside. Whether it is manually poured or transferred by other conveying equipment, the larger opening can reduce the difficulty of operation and reduce grain spillage caused by the deviation of the pouring angle. It is especially suitable for handling bulk, large-volume raw grain samples and improving feeding efficiency.
[0017] Preferably, the surfaces of the feed hoppers of the secondary and tertiary samplers are fixedly connected to a fixing plate, and the fixing plate is connected to the support frame.
[0018] By adopting the above technical solution, the fixing plate can be rigidly connected to the support frame to firmly fix the secondary and tertiary samplers on the overall frame, ensuring their accurate position and avoiding problems such as grain spillage and sample path deviation caused by equipment shaking, thus ensuring the accuracy of sample distribution from a structural perspective.
[0019] Preferably, a reinforcing rod for reinforcing the feed hopper of the primary sampler is fixedly connected to the top of the support frame. The top end of the reinforcing rod is connected to an auxiliary component, and the bottom end of the reinforcing rod is connected to the support frame.
[0020] By adopting the above technical solution, the reinforcing rod is connected to the auxiliary component at the top and fixed to the support frame at the bottom, forming a rigid support system of "auxiliary component-reinforcing rod-support frame". This system can effectively disperse the external force on the auxiliary component and the feed hopper, and prevent the two from deforming, loosening or breaking at the connection due to long-term stress.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. By using a first-level, second-level, and third-level sampler to gradually mix the samples more evenly, compared to single-level sampling, it can more evenly cover the overall characteristics of the original sample, significantly reduce errors caused by uneven sample distribution, improve sampling accuracy, and make the final sample better reflect the overall quality of the grain. It achieves three-stage sampling with one feeding, eliminating the need for manual feeding and improving work efficiency.
[0023] 2. The mixing component is directly set in the feed hopper of the secondary and tertiary samplers to stir the samples entering the next stage of sampling in real time. When the grain enters the feed hopper of this stage from the upper stage sampler, the stirring rod can quickly break up any local agglomeration that may exist in the sample, so that the sample is in a uniform state before entering the main body of this stage sampler, providing more representative initial material for subsequent sampling and reducing sampling deviation from the source.
[0024] 3. The upper opening of the funnel-shaped auxiliary component is usually larger than the feed inlet of the hopper itself, which can more easily receive grain samples poured in from the outside. Whether it is manually poured or transferred by other conveying equipment, the larger opening can reduce the difficulty of operation and reduce grain spillage caused by the deviation of the pouring angle. It is especially suitable for handling bulk, large-volume raw grain samples and improving feeding efficiency. Attached Figure Description
[0025] Figure 1 This is a front-view stereoscopic view of a disposable multi-stage grain sampler;
[0026] Figure 2 This is a frontal sectional perspective of a one-time multi-stage grain sampler.
[0027] Figure 3 This is a top-view cross-sectional perspective of a disposable multi-stage grain sampler;
[0028] Figure 4 yes Figure 2 A partial three-dimensional structural diagram;
[0029] Figure 5 This is a front view of a disposable multi-stage grain sampler.
[0030] Reference numerals: 100, support frame; 200, multi-stage sampling assembly; 210, primary sampler; 211, feed hopper; 212, electromagnetic control valve; 213, sampler body; 214, discharge pipe; 215, auxiliary component; 220, secondary sampler; 230, tertiary sampler; 240, receiver; 250, mixing assembly; 251, drive motor; 252, connecting column; 253, stirring rod; 260, fixing plate; 270, reinforcing rod. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail.
[0032] This application discloses a disposable multi-stage grain sampler.
[0033] Reference Figure 1 and Figure 2A disposable multi-stage grain sampler includes a support frame 100 for overall support and a multi-stage sampling assembly 200 for multi-stage grain sampling. The support frame 100 is fixedly connected to the multi-stage sampling assembly 200. The multi-stage sampling assembly 200 includes a primary sampler 210, a secondary sampler 220, and a tertiary sampler 230. All three samplers are fixedly connected to the support frame 100. The bottom end of the primary sampler 210 is fixedly connected to the top end of the secondary sampler 220, and the bottom end of the secondary sampler 220 is fixedly connected to the top end of the tertiary sampler 230. The components are interconnected. The bottom of the tertiary sampler 230 is equipped with a receiving device 240 for receiving grain. The secondary sampler 220 and the tertiary sampler 230 are equipped with mixing components 250 for mixing grain samples, which makes the grain samples mixed evenly and allows for better sampling. Through the step-by-step sampling by the primary sampler 210, secondary sampler 220 and tertiary sampler 230, the samples can be mixed more evenly. Compared with single-stage sampling, it can more evenly cover the overall characteristics of the original sample, greatly reduce the error caused by uneven sample distribution, improve the sampling accuracy, and make the final sample better reflect the overall quality of the grain. It realizes three-stage sampling with one feeding, eliminating the need for manual feeding and improving work efficiency.
[0034] refer to Figure 1 and Figure 2 The primary sampler 210 includes a feed hopper 211, an electromagnetic control valve 212 installed below the feed hopper 211, and a sampler body 213 installed below the electromagnetic control valve 212. The sampler body 213 is fixedly connected to the support frame 100, and a discharge pipe 214 is connected to the lower part of the sampler body 213. The bottom end of the discharge pipe 214 is fixedly connected to the top end of the secondary sampler 220. The sequential connection of the feed hopper 211, electromagnetic control valve 212, sampler body 213, and discharge pipe 214 forms a complete primary sampler process of "receiving-controlling-sampling-guiding". Each component has a clear function and works together to efficiently process the original sample and achieve precision in the sampler process through electromagnetic control. This provides a stable and uniform initial sample for subsequent secondary and tertiary sampler processes, improving the reliability of the entire multi-stage sampler system from the source.
[0035] refer to Figure 2The secondary and tertiary samplers 220 and 230 have the same structure as the primary sampler 210. The unified structural design means that the sampling principles of each sampler, such as flow control and diversion ratio, are consistent, which can avoid the difference in sampling logic caused by different structures. The flow control accuracy of the electromagnetic control valve 212 is kept consistent in each sampler, which can ensure that the sample size reduction and diversion ratio remain stable from the primary to the tertiary sampling process, reduce the error introduced by structural differences, and improve the accuracy and reliability of the entire multi-stage sampling system.
[0036] refer to Figure 3 and Figure 4 The mixing component 250 includes a drive motor 251, a connecting column 252, and a stirring rod 253. The drive motor 251 is fixedly mounted on the feed hopper 211 of the secondary sampler 220 and the tertiary sampler 230. The output end of the drive motor 251 is fixedly connected to the top end of the connecting column 252. The stirring rod 253 is fixedly connected to the connecting column 252. The bottom end of the connecting column 252 passes through the top end of the feed hopper 211 of the secondary sampler 220 and the tertiary sampler 230 and enters the feed hopper 211 of the secondary sampler 220 and the tertiary sampler 230. The stirring rod 253 is located in the feed hopper 211 of the secondary sampler 220 and the tertiary sampler 230; the mixing component 250 is directly set in the feed hopper 211 of the secondary and tertiary samplers 230 to stir the samples entering the next stage of sampling in real time. When the grain enters the feed hopper 211 of this stage from the upper stage sampler, the stirring rod 253 can quickly break up any local aggregation that may exist in the sample, so that the sample is in a uniform state before entering the main body 213 of this stage sampler, providing more representative initial material for subsequent sampling and reducing sampling deviation from the source.
[0037] refer to Figure 5 The top of the feed hopper 211 of the primary sampler 210 is provided with an auxiliary component 215 for assisting the feeding of the feed hopper 211, and the auxiliary component 215 is funnel-shaped. The upper opening of the funnel-shaped auxiliary component 215 is usually larger than the feed inlet of the feed hopper 211 itself, which can more easily receive grain samples poured in from the outside. Whether it is manually poured or transferred by other conveying equipment, the larger opening can reduce the difficulty of operation and reduce the spillage of grain caused by the deviation of the pouring angle. It is especially suitable for processing bulk, large-volume raw grain samples and improving feeding efficiency.
[0038] refer to Figure 4A fixing plate 260 is fixedly connected to the surface of the feed hopper 211 of the secondary sampler 220 and the tertiary sampler 230. The fixing plate 260 is fixedly connected to the support frame 100, so that the fixing plate 260 reinforces and supports the feed hopper 211 of the secondary sampler 220 and the tertiary sampler 230. Through the rigid connection between the fixing plate 260 and the support frame 100, the secondary and tertiary samplers 230 can be firmly fixed on the overall frame to ensure their accurate position and avoid problems such as grain spillage and sample path deviation caused by equipment shaking, thus ensuring the sample accuracy from a structural perspective.
[0039] A reinforcing rod 270 for reinforcing the feed hopper 211 of the primary sampler 210 is fixedly connected to the top of the support frame 100. The top end of the reinforcing rod 270 is fixedly connected to the surface of the auxiliary component 215, and the bottom end of the reinforcing rod 270 is fixedly connected to the top end of the support frame 100, so that the reinforcing rod 270 supports the feed hopper 211 of the primary sampler 210. The reinforcing rod 270 is connected to the auxiliary component 215 at its top end and fixed to the support frame 100 at its bottom end, forming a rigid support system of "auxiliary component 215 - reinforcing rod 270 - support frame 100", which can effectively disperse the external force on the auxiliary component 215 and the feed hopper 211, and prevent the two from deforming, loosening or breaking at the connection due to long-term stress.
[0040] The implementation principle of this application embodiment is as follows: In implementation, the grain to be sampled is poured into the feed hopper 211 of the primary sampler 210. The electromagnetic control valve 212 on the primary sampler 210 is activated, allowing the grain to pass through the sampler body 213 on the primary sampler 210 into the feed hopper 211 of the secondary sampler 220. The drive motor 251 on the feed hopper 211 of the secondary sampler 220 is activated, driving the connecting column 252 and the stirring rod 253 to rotate, so that the stirring rod 253 mixes the grain passing through the primary sampler 210 evenly. Then, the electromagnetic control valve on the secondary sampler 220 is activated. 212. The grain is fed into the feed hopper 211 of the tertiary sampler 230 through the sampler body 213 on the secondary sampler 220. The drive motor 251 on the feed hopper 211 of the tertiary sampler 230 is started. The drive motor 251 drives the connecting column 252 and the stirring rod 253 to rotate, so that the stirring rod 253 mixes the grain passing through the secondary sampler 220 evenly. The electromagnetic control valve 212 on the tertiary sampler 230 is started, so that the grain is fed into the receiver 240 through the sampler body 213 on the tertiary sampler 230. This multi-stage sampling is convenient for users, saves time and effort, and improves work efficiency.
[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A disposable multi-stage grain sampler, characterized in that, The system includes a support frame (100) for overall support and a multi-stage sampling assembly (200) for multi-stage grain sampling. The multi-stage sampling assembly (200) is mounted on the support frame (100). The multi-stage sampling assembly (200) includes a primary sampler (210), a secondary sampler (220), and a tertiary sampler (230). The bottom end of the primary sampler (210) is connected to the top end of the secondary sampler (220), and the bottom end of the secondary sampler (220) is connected to the top end of the tertiary sampler (230). The bottom end of the tertiary sampler (230) is provided with a receiver (240) for carrying the grain after multi-stage sampling. The secondary sampler (220) and the tertiary sampler (230) are provided with a mixing assembly (250) for mixing grain samples.
2. The disposable multi-stage grain sampler according to claim 1, characterized in that, The primary sampler (210) includes a feed hopper (211), an electromagnetic control valve (212) is installed below the feed hopper (211), a sampler body (213) is installed below the electromagnetic control valve (212), and a discharge pipe (214) is connected below the sampler body (213).
3. The disposable multi-stage grain sampler according to claim 1, characterized in that, The structure of the secondary sampler (220) and the tertiary sampler (230) is the same as that of the primary sampler (210).
4. The disposable multi-stage grain sampler according to claim 1, characterized in that, The mixing component (250) includes a drive motor (251), a connecting column (252), and a stirring rod (253). The drive motor (251) is mounted on the feed hopper (211) of the secondary sampler (220) and the tertiary sampler (230). The output end of the drive motor (251) is connected to the connecting column (252). The stirring rod (253) is mounted on the connecting column (252). The stirring rod (253) and the connecting column (252) are located inside the feed hopper (211) of the secondary sampler (220) and the tertiary sampler (230).
5. The disposable multi-stage grain sampler according to claim 1, characterized in that, The top of the feed hopper (211) of the primary sampler (210) is provided with an auxiliary component (215) for assisting the feeding of the feed hopper (211), and the auxiliary component (215) is funnel-shaped.
6. The disposable multi-stage grain sampler according to claim 1, characterized in that, The feed hoppers (211) of the secondary sampler (220) and the tertiary sampler (230) are fixedly connected to a fixing plate (260), which is connected to the support frame (100).
7. The disposable multi-stage grain sampler according to claim 1, characterized in that, The top of the support frame (100) is fixedly connected to a reinforcing rod (270) for reinforcing the feed hopper (211) of the primary sampler (210). The top end of the reinforcing rod (270) is connected to the auxiliary component (215), and the bottom end of the reinforcing rod (270) is connected to the support frame (100).