Rapid pretreatment device for rice heavy metal detection

By designing an automatic rotating inner wall and rotating disc structure, combined with heating elements and stirring components, automatic drying and grinding of rice is achieved, solving the problem of residue scattering when samples are removed in existing technologies, and improving the pretreatment efficiency and convenience of heavy metal detection in rice.

CN224202853UActive Publication Date: 2026-05-05FUJIAN CCIC FAIRREACH FOOD SAFETY TESTING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN CCIC FAIRREACH FOOD SAFETY TESTING
Filing Date
2025-05-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing heavy metal detection devices for rice require manual inversion when removing samples after drying, resulting in residue scattering, cumbersome cleaning, and reduced practicality and efficiency of the device.

Method used

A rapid pretreatment device for heavy metal detection in rice was designed. It adopts an automatically rotating inner wall and rotating disc structure, combined with heating tubes, stirring components and grinding wheels, to realize automatic drying, stirring and grinding of rice. The operation of each component is uniformly controlled by a central controller, which improves the intelligence and integration of the device.

Benefits of technology

The system automates the processing of rice samples, reduces manual operation, improves the convenience and efficiency of pretreatment, avoids cleaning difficulties caused by sample spillage, and enhances the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick pretreatment device for rice heavy metal detection, which comprises a device main body, a drying component for placing and drying rice is fixedly mounted at the center of the top of the device main body, a stirring component is fixedly connected to one side of the top of the device main body, and a receiving box is movably mounted at the bottom of the device main body. The device body comprises a shell, a master controller is fixedly installed on one side of the shell, a grinding wheel used for rice grinding is rotatably installed in the middle of the interior of the shell, the drying assembly comprises an inner wall body used for containing rice, and a turnover disc used for controlling falling of the rice is installed at the bottom of the inner wall body in a swinging mode. According to the utility model, the bottom of the inner wall body for placing the rice is arranged to be capable of automatically moving, so that after the rice is cleaned and dried, a user can directly enter a grinding stage without taking out the rice again and putting the rice into a next processing structure, and the working efficiency is greatly improved. And the use convenience of the rapid pretreatment device for rice heavy metal detection is improved.
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Description

Technical Field

[0001] This utility model relates to the field of rice detection technology, specifically a rapid pretreatment device for heavy metal detection in rice. Background Technology

[0002] Testing rice for heavy metals is an important step in ensuring food safety. Pre-treatment is necessary when testing rice for heavy metals. This involves washing and drying the rice sample, then grinding it into a uniform powder for subsequent analysis. Through scientific testing procedures and quality control, the accuracy and reliability of the test results can be ensured, thus guaranteeing food safety.

[0003] The prior art, with publication number CN222258882U, provides a sample pretreatment device for heavy metal detection in tea leaves. The device includes a block, a grinding assembly, and a housing. A placement groove is provided on one side of the block, and a cavity is located inside the block on one side of the placement groove. A heating tube is installed inside the cavity, and a stirring assembly is installed inside the placement groove. The grinding assembly is installed in the middle of the block to pulverize the tea leaves. A filter plate is installed inside the housing, and a guide plate is located below the filter plate. Both the filter plate and the guide plate are inclined. This invention, by adding a placement groove, a heating tube, a grinding assembly, and a stirring assembly, enables the drying, grinding, and screening of sampled tea leaves on a single device, avoiding the need for operators to switch between multiple devices. This effectively reduces the labor intensity of workers and improves the efficiency of sample pretreatment for heavy metal detection in tea leaves.

[0004] The aforementioned patent mainly improves the efficiency of sample pretreatment for heavy metal detection by performing drying, grinding, and screening on the same equipment. However, this method of improving the efficiency of sample pretreatment for heavy metal detection requires manual removal of the dried sample. This means that removing the sample at the bottom of the block requires turning the entire processing device over. During the turning process, the residue inside the processing device will be scattered throughout the entire processing device, making cleaning cumbersome. Therefore, it greatly reduces the practicality of the sample pretreatment device for heavy metal detection. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rapid pretreatment device for heavy metal detection in rice, thus solving the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid pretreatment device for heavy metal detection in rice, comprising a main body, a drying component for placing and drying rice fixedly installed at the top center of the main body, a stirring component for stirring rice fixedly connected to one side of the top of the main body, a receiving box for collecting rice powder movably installed at the bottom of the main body, the main body including a shell, a main controller fixedly installed on one side of the shell, a grinding wheel for grinding rice rotatably installed at the center of the interior of the shell, the drying component including an inner wall for placing rice, and a rotating disc for controlling the falling of rice swaying at the bottom of the inner wall. The rotating disc at the bottom of the inner wall allows direct control of the falling rice by the inner wall and the rotating disc, greatly improving the operability of the rapid pretreatment device for heavy metal detection in rice.

[0007] Furthermore, an outer wall body is fixedly connected to the inner wall body. Multiple protruding strips are fixedly installed on the side of the outer wall body near the rotating disk. A rotating shaft is rotatably mounted at the center of the protruding strips. A micro motor is fixedly installed on one side of the rotating shaft, and the micro motor drives the rotating shaft. A connecting strip is fixedly connected to the center of the rotating shaft, and the connecting strip is fixedly connected to the rotating disk. This fixed connection allows the micro motor to directly drive the operation of the rotating disk, improving the integrated operation of the internal structure of the rapid pretreatment device for heavy metal detection in rice.

[0008] Furthermore, a heating element for drying rice is installed on the outside of the inner wall, located inside the outer wall, and electrically connected to the main controller. This electrical connection allows the main controller to directly control the operation of the heating element, enhancing the intelligence of the rapid pretreatment device for heavy metal detection in rice.

[0009] Furthermore, a grinding motor assembly is fixedly connected to the side of the outer casing near the main controller. The output end of the grinding motor assembly is fixedly connected to the grinding wheel, and the grinding motor assembly is electrically connected to the main controller. This electrical connection allows the main controller to directly control the operation of the grinding motor assembly, improving the intelligence of the rapid pretreatment device for heavy metal detection in rice.

[0010] Furthermore, the stirring assembly includes a fixed plate fixedly installed on the main body of the device. A top plate is fixedly connected to the top of the fixed plate. A stirring motor and a micro-control box are fixedly installed at the end of the top plate away from the fixed plate. The micro-control box is electrically connected to the main controller. A stirring blade is fixedly connected to the output end of the stirring motor. The stirring blade is located at the center inside the drying assembly. The stirring blade is used to accelerate the drying of rice.

[0011] Furthermore, multiple inclined guide plates are fixedly installed inside the outer casing. These guide plates guide the rice grains into the grinding wheel, improving the accuracy of the rice's trajectory within the pre-processing device.

[0012] Furthermore, the outer casing, which differs from the side where the main controller is located, has water tanks fixedly installed on its top two sides. These water tanks are used for soaking and washing the rice. The use of these water tanks for soaking and washing the rice improves the overall efficiency of the rapid pretreatment device for heavy metal detection in rice processing. Beneficial effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention improves the ease of use of the rapid pretreatment device for heavy metal detection in rice by making the bottom of the inner wall where the rice is placed automatically movable. This allows the user to directly put the rice into the grinding stage after it has been washed and dried, without having to remove the rice and put it into the next processing structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a rapid pretreatment device for heavy metal detection in rice according to the present invention;

[0016] Figure 2 This is a schematic diagram of the left rear side of the structure of a rapid pretreatment device for heavy metal detection in rice according to the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the stirring assembly of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the main body of the device of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the drying component of this utility model;

[0020] Figure 6 This is a left-side bottom-view perspective view of the drying component of this utility model.

[0021] In the diagram: 1. Drying assembly; 2. Stirring assembly; 3. Receiving box; 4. Main body of the device; 21. Stirring motor; 22. Microcontroller box; 23. Top plate; 24. Fixing plate; 25. Stirring blade; 41. Outer shell; 42. Guide plate; 43. Water tank; 44. Main controller; 45. Grinding motor assembly; 46. Grinding wheel; 11. Outer wall; 12. Heating element; 13. Inner wall; 14. Tilting disc; 15. Connecting strip; 16. Micro motor; 17. Rotating shaft. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model. Example

[0023] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6This application provides a further detailed description. A rapid pretreatment device for heavy metal detection in rice includes a main body 4. A drying component 1 for placing and drying rice is fixedly installed at the center of the top of the main body 4. A stirring component 2 for stirring the rice is fixedly connected to one side of the top of the main body 4. A receiving box 3 for collecting rice powder is movably installed at the bottom of the main body 4. The main body 4 includes a shell 41. A main controller 44 is fixedly installed on one side of the shell 41. A grinding wheel 46 for grinding rice is rotatably installed in the center of the interior of the shell 41. The drying component 1... The inner wall 13 is used to hold rice grains. A tilting disc 14, which controls the rice grains from falling, is mounted on the bottom of the inner wall 13. An outer wall 11 is fixedly connected to the outer wall 13. Multiple protruding strips are fixedly installed on the side of the outer wall 11 near the tilting disc 14. A rotating shaft 17 is rotatably mounted in the middle of the protruding strips. A micro motor 16 is fixedly mounted on one side of the rotating shaft 17 to drive it. A connecting strip 15 is fixedly connected to the middle of the rotating shaft 17 and is fixedly connected to the tilting disc 14. The unit is equipped with a heating element 12 for drying rice. The heating element 12 is located inside the outer wall 11 and is electrically connected to the main controller 44. A grinding motor assembly 45 is fixedly connected to the side of the outer shell 41 near the main controller 44. The output end of the grinding motor assembly 45 is fixedly connected to the grinding wheel 46. The grinding motor assembly 45 is electrically connected to the main controller 44. The stirring assembly 2 includes a fixing plate 24 fixedly installed on the main body 4. A top plate 23 is fixedly connected to the top of the fixing plate 24. The end of the top plate 23 away from the fixing plate 24 is fixedly mounted on the top plate 24. The assembly is equipped with a stirring motor 21 and a microcontroller box 22. The microcontroller box 22 is electrically connected to the main controller 44. The output end of the stirring motor 21 is fixedly connected to a stirring blade 25. The stirring blade 25 is located in the center of the drying assembly 1. The stirring blade 25 is used to accelerate the drying of rice. Multiple inclined guide plates 42 are fixedly installed inside the outer shell 41. The guide plates 42 are used to guide the rice into the grinding wheel 46. Water tanks 43 are fixedly installed on the top of both sides of the outer shell 41, which are different from the side where the main controller 44 is located. The water tanks 43 are used for soaking and washing the rice.

[0024] Because the inner wall 13 is curved in a bowl shape and the stirring blade 25 is also larger at the top and smaller at the bottom, when the rice is inside the inner wall 13, the rotating stirring blade 25 can work with the heating tube 12 to make the rice dry more completely. The curved bowl shape inside the inner wall 13 prevents the rice from scattering to the outside when it is being stirred inside.

[0025] Since the control box of the micro motor 16 and the grinding motor group 45 are both electrically connected to the main controller 44, the micro control box 22 is electrically connected to the control box of the stirring motor 21, and the main controller 44 is electrically connected to the micro control box 22, the main controller 44 can directly control the micro motor 16, the stirring motor 21 and the grinding motor group 45, which greatly improves the intelligence of the rapid pretreatment device for heavy metal detection in rice.

[0026] Since both guide plates 42 are tilted inward, when the flip plate 14 is opened, the dried rice can fall along the guide plates 42 into the middle of the two grinding wheels 46, and then be directly ground by the grinding wheels 46, which improves the accuracy of rice grinding in the rapid pretreatment device for heavy metal detection of rice.

[0027] The working principle of this utility model is explained below: Unless otherwise specified, all internal mechanical structures of the rapid pretreatment device for heavy metal detection in rice are fixed by threads. To allow for a more intuitive observation of the technical features, bolt connections are appropriately concealed in the diagram. Before use, the user places the rice to be tested for heavy metals in the water tank 43 for soaking and washing. After soaking and washing, the user removes the washed rice and places it inside the inner wall 13. Then, the user activates the heating element 12 and the stirring motor 21 via the main controller 44. The heating element 12 continuously heats the rice. With the stirring of the stirring plate 25, the rice can be thoroughly dried directly. After the rice is dried, the user controls the micro motor 16 to start. The started micro motor 16 can rotate the rotating disk 14 through the rotating shaft 17. The grinding motor group 45 controls the grinding wheel 46 to rotate. Then the rice falls into the grinding wheel 46 through the guide plate 42 for grinding and finally falls into the receiving box 3. The user can directly pull out the receiving box 3 to get the processed rice powder and perform subsequent heavy metal detection. Therefore, the convenience of using the rapid pre-treatment device for heavy metal detection of rice and the efficiency of rice pre-treatment are greatly improved.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A rapid pretreatment device for heavy metal detection in rice, characterized in that, The device includes a main body (4), a drying component (1) for placing and drying rice is fixedly installed at the top center of the main body (4), a stirring component (2) for stirring rice is fixedly connected to one side of the top of the main body (4), a receiving box (3) for collecting rice powder is movably installed at the bottom of the main body (4), the main body (4) includes a shell (41), a main controller (44) is fixedly installed on one side of the shell (41), a grinding wheel (46) for grinding rice is rotatably installed in the middle of the inside of the shell (41), the drying component (1) includes an inner wall (13) for placing rice, and a rotating disc (14) for controlling the falling of rice is installed at the bottom of the inner wall (13).

2. The rapid pretreatment device for heavy metal detection in rice according to claim 1, characterized in that: An outer wall body (11) is fixedly connected to the inner wall body (13). Multiple protrusions are fixedly installed on the side of the outer wall body (11) near the flip disk (14). A rotating shaft (17) is rotatably installed in the middle of the multiple protrusions. A micro motor (16) is fixedly installed on one side of the rotating shaft (17). The micro motor (16) is used to drive the rotating shaft (17). A connecting strip (15) is fixedly connected in the middle of the rotating shaft (17). The connecting strip (15) is fixedly connected to the flip disk (14).

3. The rapid pretreatment device for heavy metal detection in rice according to claim 2, characterized in that: The inner wall (13) is provided with a heating tube (12) for drying rice. The heating tube (12) is located inside the outer wall (11) and is electrically connected to the main controller (44).

4. The rapid pretreatment device for heavy metal detection in rice according to claim 1, characterized in that: A grinding motor assembly (45) is fixedly connected to the side of the outer casing (41) near the main controller (44). The output end of the grinding motor assembly (45) is fixedly connected to the grinding wheel (46), and the grinding motor assembly (45) is electrically connected to the main controller (44).

5. The rapid pretreatment device for heavy metal detection in rice according to claim 1, characterized in that: The stirring assembly (2) includes a fixed plate (24) fixedly installed on the main body (4) of the device. A top plate (23) is fixedly connected to the top of the fixed plate (24). A stirring motor (21) and a micro control box (22) are fixedly installed at the end of the top plate (23) away from the fixed plate (24). The micro control box (22) is electrically connected to the main controller (44). A stirring blade (25) is fixedly connected to the output end of the stirring motor (21). The stirring blade (25) is located in the center of the drying assembly (1). The stirring blade (25) is used to accelerate the drying of rice.

6. The rapid pretreatment device for heavy metal detection in rice according to claim 1, characterized in that: Multiple inclined guide plates (42) are fixedly installed inside the outer shell (41), and the guide plates (42) are used to guide the rice grains into the grinding wheel (46).

7. The rapid pretreatment device for heavy metal detection in rice according to claim 1, characterized in that: The outer casing (41) is different from the side where the main controller (44) is located. Water tanks (43) are fixedly installed on the top of both sides. The water tanks (43) are used for soaking and cleaning rice.

Citation Information

Patent Citations

  • Sample pretreatment device for tea heavy metal detection

    CN222258882U