Sampling equipment for food detection

By designing a sampling device for food testing, a multi-directional and multi-vertical food sampling method is achieved by using a motor-driven stirring shaft and rotating sampling components. This solves the problem of insufficient sampling representativeness in existing technologies and improves sampling efficiency and ease of operation.

CN121877475AInactive Publication Date: 2026-04-17ZHONGZE INSPECTION & CERTIFICATION (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGZE INSPECTION & CERTIFICATION (JIANGSU) CO LTD
Filing Date
2025-12-29
Publication Date
2026-04-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing sampling agencies are unable to sample food from different positions and vertical heights within the mixing chamber, resulting in insufficient representativeness of the samples and difficulty in effectively verifying food quality.

Method used

A sampling device for food testing was designed, including a stirring shell, a rotary sampling component, and a connecting component. The stirring shaft and stirring rod are driven by a motor to uniformly stir the food. The rotary sampling component enables sampling from multiple directions and vertical positions, and the connecting component enables automatic cleaning of the sampling pipeline, avoiding manual intervention.

Benefits of technology

It achieves overall uniformity of food samples, improves sampling efficiency and ease of operation, ensures the representativeness of samples, and eliminates the need to manually switch sampling positions, simplifying the cleaning process of sampling pipelines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides sampling equipment for food detection, and belongs to the technical field of food sampling, the sampling equipment comprises a stirring shell, a feeding pipe is mounted on the side edge of the stirring shell, a feeding pipe is mounted at the bottom of the stirring shell, a second motor is mounted at the top of the stirring shell, and the output end of the second motor is fixedly connected with a stirring shaft extending into the stirring shell; stirring rods are uniformly mounted on the peripheral side of the stirring shaft, a support is mounted at the top of the right side of the stirring shell, a rotary sampling assembly is mounted on the right side of the stirring shell, and a third gear is mounted at the top of the right side of the support. The problems that most sampling mechanisms can only achieve sampling at a single position and cannot sample food in different directions and at different vertical heights in the stirring shell, so that the representativeness of sampled samples is insufficient, and the food quality is difficult to effectively verify are solved.
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Description

Technical Field

[0001] This invention belongs to the field of food sampling technology, specifically relating to a sampling device for food testing. Background Technology

[0002] Food testing is a crucial step in ensuring food safety and quality, and it must be conducted before food is placed on the market. Liquid foods can be tested directly; however, solid foods must first be dissolved in water or other solvents for subsequent testing and analysis.

[0003] In the production process of liquid food, it is usually necessary to sample and test the quality of the food, including the uniformity of liquid mixing and composition, to ensure that the food is produced in a good condition. However, most sampling agencies can only sample from a single location and cannot sample food from different positions and vertical heights within the mixing shell, resulting in insufficient representativeness of the sampled items and difficulty in effectively verifying food quality. Therefore, a sampling device for food testing is proposed. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given the following technical problems in the existing technology: most sampling mechanisms can only achieve sampling at a single location, and cannot sample food from different positions and vertical heights inside the mixing shell, resulting in insufficient representativeness of the sampled products and difficulty in effectively verifying food quality.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sampling device for food testing, comprising a stirring shell, a feeding pipe installed on the side of the stirring shell, a feeding pipe installed at the bottom of the stirring shell, a second motor installed at the top of the stirring shell, a stirring shaft fixedly connected to the output end of the second motor and protruding into the stirring shell, stirring rods evenly installed around the stirring shaft, a bracket installed at the top right side of the stirring shell, a rotary sampling assembly installed at the right side of the stirring shell, a third gear installed at the top right side of the bracket, an extension plate installed at the top right side of the stirring shell, an installation block installed at the top of the extension plate, a second gear ring installed on the outer side of the installation block, the second gear ring meshing with the third gear, a sample outlet pipe installed at the right side of the bracket, a rotating right-angle tube connected to the rotary sampling assembly, and connecting components provided at the ends of the rotating right-angle tube and the sample outlet pipe near the pump body.

[0007] Furthermore, the gear three is connected to the motor one mounted on the bracket, the mounting block is rotatably connected to the pump body via a track mounted on the pump body, a hanger rod is mounted on the inner top wall of the bracket, and the rotating right-angle tube is rotatably connected to the end of the hanger rod.

[0008] Furthermore, the rotary sampling assembly includes a motor three, which is mounted on the top of the support. The output end of the motor three is connected to a gear one, and the outer wall of the gear one is meshed with a gear ring one. An installation base plate is mounted on the inner wall of the gear ring one. A rotating ring is rotatably connected to the left side of the installation base plate. A receiving shell is mounted on the right inner top wall of the stirring shell. Several receiving slots are vertically distributed on the left side of the receiving shell. A sampling tube is connected to the right side of each receiving slot. An arc-shaped baffle is slidably connected to the left side of the receiving shell. Several communication ports corresponding to the receiving slots are vertically distributed on the arc-shaped baffle. A rack is mounted on the top left side of the arc-shaped baffle. A motor four is mounted on the top right side of the stirring shell, and the output end of the motor four is connected to a gear two.

[0009] Furthermore, the second gear meshes with the rack, the first gear meshes with the first gear ring, the arc-shaped baffle is slidably attached to the receiving shell, the left side of the receiving shell is arc-shaped, and the arc-shaped baffle is a semi-circular shape that wraps around the receiving shell.

[0010] Furthermore, the sampling tubes are arranged sequentially from front to back, and their ends are all connected to the corresponding receiving grooves.

[0011] Furthermore, the top of the first vertical sampling tube is connected to the rear side of the rotating ring, the top of the second vertical sampling tube is connected to the front side of the rotating ring, the third vertical sampling tube is connected to the bottom of the rotating ring, and the fourth vertical sampling tube is connected to the top of the rotating ring. The connections between the sampling tubes and the rotating ring are evenly spaced and arranged in a ring.

[0012] Furthermore, one end of the rotating right-angle tube near the mounting base is connected to the corresponding sampling tube mounted on the rotating ring.

[0013] Furthermore, the connecting assembly includes a flow pipe with a pair of terminals respectively installed at the input and output ends of the pump body. An outer guide sleeve is rotatably connected to the flow pipe, and an inner sleeve is slidably connected inside the outer guide sleeve. Two guide posts distributed vertically are installed at the end of the inner sleeve near the flow pipe. A guide groove matching the guide posts is provided on the outer guide sleeve. An inner port is installed on the flow pipe. A motor is installed at the bottom front end of the pump body. Gears are connected to both output ends of the motor. A toothed ring is installed on the outer wall of the outer guide sleeve near the flow pipe. A sliding groove is provided on the inner wall of the inner sleeve. A sealing ring is slidably connected in the sliding groove. A spring is installed between the sealing ring and the groove wall. A sealing gasket is connected to the end of the sealing ring away from the spring, which abuts against the inner port.

[0014] Furthermore, the gear ring three meshes with the gear four, and a sealing ring one is installed at the end of the sliding groove near the rotating right-angle tube.

[0015] Furthermore, a groove is provided on the inner wall of the inner sleeve near the guide post, and a track bar matching the groove is installed on the outer side of the flow tube. The outer guide sleeve on the left is inserted into the rotating right-angle tube, and the outer guide sleeve on the right is inserted into the sample outlet tube.

[0016] The beneficial effects of this invention are as follows: 1. This invention uses a second motor to drive a stirring shaft and stirring rod to thoroughly stir the food, ensuring the overall uniformity of the sample and providing an objective basis for subsequent testing. Relying on the transmission structure of the third motor, gear one, and gear ring one of the rotating sampling component, combined with the sliding adjustment of the arc-shaped baffle driven by the fourth motor, sampling can be achieved in multiple directions and vertical positions within the stirring shell. During the sampling process, the arc-shaped baffle can flexibly open and close the receiving slot to avoid sample leakage. At the same time, there is no need for manual intervention to switch the sampling position, improving sampling efficiency and ease of operation.

[0017] 2. The present invention, through the gear four and gear ring three transmission of the connecting component and the cooperation of the guide column and guide groove, can automatically complete the docking and separation of the inner sleeve and the pipeline. With the reversing of the pump body, the reverse delivery of cleaning liquid can be realized without manual docking, which saves time and effort for cleaning the sampling pipeline.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the cross-sectional structure of an embodiment of the present invention; Figure 2 Embodiments of the present invention Figure 1 Partial structural diagram; Figure 3 Embodiments of the present invention Figure 1 Schematic diagram of the structure at point A in the middle; Figure 4 Embodiments of the present invention Figure 2 Schematic diagram of the structure at point B; Figure 5 Embodiments of the present invention Figure 4 Schematic diagram of the structure at point C; Figure 6 This is a schematic diagram of the guide post and guide groove structure according to an embodiment of the present invention; Figure 7 Embodiments of the present invention Figure 4 Schematic diagram of the structure at point D; Figure 8 This is a schematic diagram of the left-side structure of the mounting base plate according to an embodiment of the present invention; Reference numerals: 100, stirring shell; 200, feeding pipe; 300, motor two; 400, feeding pipe; 500, stirring rod; 600, stirring shaft; 700, bracket; 801, motor three; 802, gear one; 803, gear ring one; 804, mounting base; 805, rotating ring; 806, sampling tube; 807, motor four; 808, gear two; 809, rack; 8010, arc-shaped baffle; 8011, receiving shell; 8012, receiving groove; 8013, connecting port; 900, gear three; 100 0. Pump body; 1001. Gear ring II; 1002. Mounting block; 1004. Flow pipe; 1100. Sample outlet pipe; 1201. Outer guide sleeve; 1202. Guide groove; 1203. Inner connecting sleeve; 1204. Guide column; 1205. Track bar; 1206. Inner connecting port; 1207. Motor V; 1208. Gear IV; 1209. Inner convex ring; 1211. Gear ring III; 1212. Sliding groove; 1213. Sealing ring; 1214. Sealing gasket II; 1215. Spring; 1300. Rotating right-angle tube. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] Reference Figures 1-8This invention provides a sampling device for food testing, comprising a mixing shell 100, a feeding pipe 200 mounted on the side of the mixing shell 100, a feeding pipe 400 mounted on the bottom of the mixing shell 100, a second motor 300 mounted on the top of the mixing shell 100, a stirring shaft 600 inserted into the mixing shell 100 fixedly connected to the output end of the second motor 300, stirring rods 500 evenly mounted around the circumference of the stirring shaft 600, a bracket 700 mounted on the top right side of the mixing shell 100, and a support 700 mounted on the right side of the mixing shell 100. The device includes a rotary sampling assembly. A gear 3 (900) is mounted on the top right side of the support 700. An extension plate is mounted on the top right side of the stirring shell 100. A mounting block 1002 is mounted on the top of the extension plate. A gear ring 2 (1001) is mounted on the outer side of the mounting block 1002. The gear ring 2 (1001) meshes with the gear 3 (900). A sample outlet tube 1100 is mounted on the right side of the support 700. A rotating right-angle tube 1300 is connected to the rotary sampling assembly. Both the rotating right-angle tube 1300 and the sample outlet tube 1100 are located near the pump body 1000. Equipped with a connecting assembly, the processed food is fed into the mixing shell 100 through the side feeding pipe 200. After the motor 300 starts, it drives the mixing shaft 600 and the surrounding mixing rods 500 to rotate, uniformly mixing the food and ensuring the uniformity of the food sample. The bottom feeding pipe 400 can be used to discharge the mixed food. When sampling is required during the mixing process, the rotating sampling component can achieve multi-directional and multi-position sampling. The motor drives the gear 900 to rotate, and the gear 900 meshes with the gear ring 1001 to drive the... Adjust the position of the mounting block 1002 and the connected pump body 1000, and change the position of the input end and output end of the pump body 1000. This allows liquid to be delivered to the rotary sampling assembly and cleans the sampling tube. The connecting assembly can reconnect the rotating right-angle tube 1300 and the sample outlet tube 1100 after the pump body 1000 rotates, without the need for manual connection. The sample obtained by the rotary sampling assembly is output through the rotating right-angle tube 1300, the connecting assembly, and the sample outlet tube 1100 by the action of the pump body 1000, which is convenient for subsequent testing.

[0025] Gear 3 900 is connected to motor 1 mounted on bracket 700. Mounting block 1002 is rotatably connected to pump body 1000 via a track mounted on pump body 1000. A hanger is mounted on the inner top wall of bracket 700. Rotating right-angle tube 1300 is rotatably connected to the end of hanger. Motor 1 serves as the power source for gear 3 900. Through the meshing transmission between gear 3 900 and gear ring 2 1001, it drives pump body 1000 to rotate along mounting block 1002, thereby realizing the interchange of the directions of the input and output ends of pump body 1000. The hanger on the inner top wall of bracket 700 supports rotating right-angle tube 1300 and allows rotating right-angle tube 1300 to rotate around the end of hanger, adapting to the sampling angle change of rotating sampling component, ensuring the smoothness of sample delivery channel, and avoiding pipe twisting or blockage caused by sampling position adjustment.

[0026] The rotary sampling assembly includes a motor 801, which is mounted on the top of the bracket 700. The output end of the motor 801 is connected to a gear 802. A gear ring 803 is meshed with the outer wall of the gear 802. A mounting base 804 is mounted on the inner wall of the gear ring 803. A rotating ring 805 is rotatably connected to the left side of the mounting base 804. A receiving shell 8011 is mounted on the right inner top wall of the stirring shell 100. Several receiving slots 8012 are vertically distributed on the left side of the receiving shell 8011. Each receiving slot 8012... Sampling tubes 806 are connected to the right side of each container 8011. An arc-shaped baffle 8010 is slidably connected to the left side of the container shell 8011. Several vertically distributed communication ports 8013 corresponding to the container 8012 are distributed on the arc-shaped baffle 8010. A rack 809 is installed on the top left side of the arc-shaped baffle 8010. A motor 807 is installed on the top right side of the stirring shell 100. The output end of the motor 807 is connected to a gear 808. After the motor 801 is started, it drives the gear 802 to rotate, which in turn drives the mounting base 804 to rotate. The left side... The rotating ring 805 is limited by the fixed sampling tube 806, and the rotation of 804 connects different sampling tubes 806 with the rotating right-angle tube 1300, allowing sampling of food from different positions within the stirring shell 100. The motor 807 drives the gear 808 to rotate, and the gear 808 meshes with the rack 809, causing the arc-shaped baffle 8010 to slide along the left side of the receiving shell 8011. By adjusting the position of the arc-shaped baffle 8010, the connecting port 8013 is aligned with the receiving groove 8012, ensuring that sampling occurs within the stirring area. Food from shell 100 enters the receiving tank 8012. At this time, according to the sampling position in the mixing shell 100, motor 3 801 drives the mounting base 804 to rotate to the corresponding position and connect with the corresponding sampling tube 806. This allows for the extraction of food concentrate from different vertical positions to check the degree of mixing. The sample extracted by sampling tube 806 can enter the rotating ring 805 through the receiving tank 8012 and the connecting port 8013, and then be output through the rotating right-angle tube 1300. If misaligned, the arc baffle 8010 can close the receiving tank 8012.

[0027] Gear 2 808 meshes with rack 809, gear 1 802 meshes with gear ring 1 803, and arc-shaped baffle 8010 is slidably attached to housing 8011. The left side of housing 8011 is arc-shaped, and arc-shaped baffle 8010 is semi-circular, enclosing housing 8011. The meshing of gear 2 808 and rack 809 ensures that motor 4 807 moves arc-shaped baffle 8010. The meshing of gear 1 802 and gear ring 1 803 ensures that motor 3 801 drives mounting base 804 to rotate, adjusting the connected sampling tube 806. The sliding attachment of arc-shaped baffle 8010 to housing 8011 prevents sample leakage after sampling.

[0028] The sampling tubes 806 are arranged sequentially from front to back, and their ends are all connected to the corresponding receiving tanks 8012. The sequential arrangement of the sampling tubes 806 from front to back ensures that they do not interfere with each other. The end of each sampling tube 806 is uniformly connected to the corresponding receiving tank 8012, which can transport the sample in the corresponding receiving tank 8012.

[0029] The top of the first vertical sampling tube 806 is connected to the rear side of the rotating ring 805, the top of the second vertical sampling tube 806 is connected to the front side of the rotating ring 805, the third vertical sampling tube 806 is connected to the bottom of the rotating ring 805, and the fourth vertical sampling tube 806 is connected to the top of the rotating ring 805. The connections of the sampling tubes 806 and the rotating ring 805 are evenly spaced in a ring. The design of the sampling tubes 806 and the rotating ring 805 being evenly spaced in different directions, combined with the rotation function of the rotating ring 805, can prevent mutual interference during rotation.

[0030] One end of the rotating right-angle tube 1300 near the mounting base 804 is connected to the corresponding sampling tube 806 mounted on the rotating ring 805. The connection between the rotating right-angle tube 1300 and the sampling tube 806 on the rotating ring 805 establishes an intermediate transmission channel for the sample from the sampling tube 806 to the input end. When the rotating ring 805 rotates to adjust the sampling angle, allowing the rotating right-angle tube to connect with different sampling tubes 806, the extracted sample can directly enter the interior of the rotating ring 805 and then be transported to the subsequent connecting components and the sample outlet tube 1100 through the rotating right-angle tube 1300.

[0031] The connecting assembly includes a flow pipe 1004, which has a pair of inlet and outlet ends respectively installed on the pump body 1000. An outer guide sleeve 1201 is rotatably connected to the flow pipe 1004, and an inner sleeve 1203 is slidably connected inside the outer guide sleeve 1201. Two guide posts 1204 distributed vertically are installed on one end of the inner sleeve 1203 near the flow pipe 1004. A guide groove 1202 matching the guide post 1204 is opened on the outer guide sleeve 1201. An inner port 1206 is installed on the flow pipe 1004. The front end bottom of the pump body 1000 is installed with... There is a motor 1207, and both output ends of the motor 1207 are connected to gears 1208. Gear rings 1211 are installed on the outer wall of the outer guide sleeve 1201 near the flow pipe 1004. A sliding groove 1212 is provided on the inner wall of the inner sleeve 1203. A sealing ring 1213 is slidably connected in each sliding groove 1212. A spring 1215 is installed between the sealing ring 1213 and the groove wall of the sliding groove 1212. A sealing gasket 1214 is connected to the end of the sealing ring 1213 away from the spring 1215, abutting against the inner port 1206. The pump body 1000 needs to be... When the input and output ends are reversed, motor 5 1207 starts and drives two gears 4 1208 to rotate. Gear 4 1208 meshes with gear ring 3 1211 on the outer guide sleeve 1201, driving the outer guide sleeve 1201 to rotate along the flow pipe 1004. Then, through the cooperation of guide post 1204 and guide groove 1202, the inner sleeve 1203 moves and retracts into the outer guide sleeve 1201. At this time, the connection with the rotating right angle tube 1300 and the sample outlet tube 1100 is released. Then, motor 1 drives the pump body 1000 to rotate through gear 3 900 and gear ring 2 1001, realizing the pump... The input and output ends of body 1000 are reversed. Then, motor 5 1207 drives two gears 4 1208 to rotate in the opposite direction, so that inner sleeve 1203 protrudes from outer guide sleeve 1201 and connects with rotating right-angle tube 1300 and sample outlet tube 1100. At this time, liquid can be delivered to rotating right-angle tube 1300 through sample outlet tube 1100, which facilitates subsequent liquid delivery, cleaning of tube body or other operations. After inner sleeve 1203 is connected, the force of spring 1215 makes sealing gasket 2 1214 fit tightly with inner port 1206 to achieve a sealed connection.

[0032] Gear ring 3 1211 meshes with gear 4 1208. A sealing ring 1 is installed at one end of the sliding groove 1212 near the rotating right angle tube 1300. The meshing of gear ring 3 1211 and gear 4 1208 ensures that the power of motor 5 1207 is applied to guide sleeve 1201, realizing the precise movement and docking of inner sleeve 1203. When inner sleeve 1203 docks with rotating right angle tube 1300, sealing ring 1 can seal the connection between the two.

[0033] The inner wall of the inner sleeve 1203 near the guide post 1204 has a groove. The outer side of the flow pipe 1004 is equipped with a track bar 1205 that matches the groove. The outer guide sleeve 1201 on the left is inserted into the rotating right angle tube 1300, and the outer guide sleeve 1201 on the right is inserted into the sample outlet tube 1100. The groove on the inner wall of the inner sleeve 1203 cooperates with the track bar 1205 on the outer side of the flow pipe 1004 to guide and limit, prevent the inner sleeve 1203 from rotating during sliding, ensure that the inner sleeve 1203 can accurately connect with the inner port 1206, and improve the smoothness of sliding. All pipe connections in this invention are sealed. The input end and output end of the pump body 1000 are located on the same horizontal center line.

[0034] The specific implementation method is as follows: the food is fed into the internal cavity of the mixing shell 100 through the feeding pipe 200, the motor 300 is started, and the stirring shaft 600 inserted into the mixing shell 100 is driven to rotate synchronously. The stirring rod 500 rotates together with the stirring shaft 600 to fully and evenly stir the food in the mixing shell 100, thereby ensuring the overall uniformity of the food sample. After the stirring is completed, the food can be discharged uniformly through the feeding pipe 400 at the bottom of the mixing shell 100. During the entire stirring process, the sampling process can be started at any time to take food samples. The motor 807 is started, which drives the gear 808 to rotate. Through the rack 809, the arc-shaped baffle 8010 slides along the housing 8011, aligning the connecting port 8013 with the housing groove 8012 of the housing 8011. At this time, the food stock solution in the corresponding vertical position in the stirring shell 100 can enter the housing groove 8012 through the connecting port 8013. Then, the arc-shaped baffle 8010 is reset to block the housing groove 8012, and the pump body 1000 is started to automatically transport the sample. The rotating right-angle tube 1300 is connected to the input end of the pump body 1000 through the connecting component, and the output end of the pump body 1000 is connected to the sample outlet tube 1100. Under the power of the pump body 1000, the sample in the housing groove 8012 is output through the rotating ring 805, the rotating right-angle tube 1300, the connecting component, the pump body 1000, and the sample outlet tube 1100. The output sample can be directly used for subsequent food testing operations. When samples need to be taken from other vertical positions, motor 3 801 is started. Motor 3 801 drives gear 1 802 to rotate, which in turn drives the mounting base 804 on the inner wall of gear ring 1 803 to rotate. The mounting base 804 rotates to the corresponding position, and the rotating right angle tube 1300 also rotates. This allows the rotating right angle tube 1300 to be connected with the sampling tube 806 at the target vertical position, so as to realize food sampling at different vertical positions within the stirring shell 100. After the sampling operation is completed, if it is necessary to clean the sampling pipeline, start motor 5 1207. Motor 5 1207 drives two gears 4 1208 to rotate, which drives the outer guide sleeve 1201 to rotate along the flow pipe 1004 through the gear ring 3 1211. The outer guide sleeve 1201 drives the inner sleeve 1203 to slide and retract into the outer guide sleeve 1201 through the sliding engagement of the guide post 1204 and the guide groove 1202. At this time, the connecting component is disconnected from the plug connection of the rotating right angle tube 1300 and the sample outlet tube 1100, providing space for the reversing rotation of the pump body 1000. Start motor one, which drives gear three 900 to rotate, causing pump body 1000 to rotate. This ultimately reverses the direction of the input and output ends of pump body 1000. Then, start motor five 1207 again, which drives gear four 1280 to rotate in the opposite direction, allowing inner sleeve 1203 to reconnect with rotating right-angle tube 1300 and sample outlet tube 1100. After pump body 1000 completes the reversal of its input and output ends and the connecting components complete the pipeline docking, the input end of pump body 1000 is connected to sample outlet tube 1100 and the output end is connected to rotating right-angle tube 1300. At this time, cleaning liquid is delivered into rotating right-angle tube 1300 through pump body 1000. The cleaning liquid flows in the opposite direction along the sampling pipeline, passing through rotating ring 805, sampling tube 806, etc., to complete the cleaning of the sampling pipeline.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sampling device for food testing, comprising a stirring shell (100), characterized in that, A feeding pipe (200) is installed on the side of the stirring shell (100), a feeding pipe (400) is installed at the bottom of the stirring shell (100), a second motor (300) is installed at the top of the stirring shell (100), and a stirring shaft (600) protruding into the stirring shell (100) is fixedly connected to the output end of the second motor (300). Stirring rods (500) are evenly installed around the stirring shaft (600). A bracket (700) is installed on the top right side of the stirring shell (100), a rotating sampling component is installed on the right side of the stirring shell (100), and a gear (900) is installed on the top right side of the bracket (700). An extension plate is installed on the top right side of the stirring shell (100), and an installation block (1002) is installed on the top of the extension plate. A pump body (1000) is rotatably connected to the installation block (1002). A gear ring (1001) is installed on the outside of the installation block (1002). The gear ring (1001) meshes with a gear (900). A sample outlet tube (1100) is installed on the right side of the bracket (700). A rotating right-angle tube (1300) is connected to the rotating sampling assembly. A connecting assembly is provided at the end of the rotating right-angle tube (1300) and the sample outlet tube (1100) near the pump body (1000).

2. The sampling device for food testing according to claim 1, characterized in that: The gear three (900) is connected to the motor one mounted on the bracket (700). The mounting block (1002) is rotatably connected to the pump body (1000) via a track mounted on the pump body (1000). A hanging rod is installed on the inner top wall of the bracket (700). The rotating right-angle tube (1300) is rotatably connected to the end of the hanging rod.

3. The sampling device for food testing according to claim 2, characterized in that: The rotary sampling assembly includes a motor three (801), which is mounted on the top of the bracket (700). The output end of the motor three (801) is connected to a gear one (802). The outer wall of the gear one (802) is meshed with a gear ring one (803). The inner wall of the gear ring one (803) is mounted with a mounting base plate (804). A rotating ring (805) is rotatably connected to the left side of the mounting base plate (804). A receiving shell (8011) is mounted on the inner top wall of the right side of the stirring shell (100). The left side of the receiving shell (8011) is vertically distributed... There are several receiving tanks (8012), and each receiving tank (8012) is connected to a sampling tube (806) on its right side. An arc-shaped baffle (8010) is slidably connected to the left side of the receiving shell (8011). Several communication ports (8013) corresponding to the receiving tanks (8012) are vertically distributed on the arc-shaped baffle (8010). A rack (809) is installed on the top left side of the arc-shaped baffle (8010). A motor four (807) is installed on the top right side of the stirring shell (100). A gear two (808) is connected to the output end of the motor four (807).

4. The sampling device for food testing according to claim 3, characterized in that: The second gear (808) meshes with the rack (809), the first gear (802) meshes with the first gear ring (803), the arc-shaped baffle (8010) slides and fits into the housing (8011), the left side of the housing (8011) is arc-shaped, and the arc-shaped baffle (8010) is a semi-circular shape that wraps around the housing (8011).

5. A sampling device for food testing according to claim 4, characterized in that: The sampling tubes (806) are arranged sequentially from front to back, and their ends are all connected to the corresponding receiving grooves (8012).

6. A sampling device for food testing according to claim 5, characterized in that: The top of the first vertical sampling tube (806) is connected to the rear side of the rotating ring (805), the top of the second vertical sampling tube (806) is connected to the front side of the rotating ring (805), the third vertical sampling tube (806) is connected to the top of the rotating ring (805), and the fourth vertical sampling tube (806) is connected to the bottom of the rotating ring (805). The connection points of several sampling tubes (806) and rotating ring (805) are evenly spaced and arranged in a ring.

7. A sampling device for food testing according to claim 6, characterized in that: The end of the rotating right-angle tube (1300) near the mounting base (804) is connected to the corresponding sampling tube (806) mounted on the rotating ring (805).

8. A sampling device for food testing according to claim 7, characterized in that: The connecting assembly includes a flow pipe (1004), which has a pair of inlet and outlet ends respectively installed on the pump body (1000). An outer guide sleeve (1201) is rotatably connected to the flow pipe (1004), and an inner sleeve (1203) is slidably connected inside the outer guide sleeve (1201). Two guide posts (1204) are installed at the end of the inner sleeve (1203) near the flow pipe (1004). A guide groove (1202) matching the guide post (1204) is opened on the outer guide sleeve (1201). An inner port (1206) is installed on the flow pipe (1004). The pump body (1000) A motor five (1207) is installed at the bottom of the front end. Both output ends of the motor five (1207) are connected to gear four (1208). A toothed ring three (1211) is installed on the outer wall of the outer guide sleeve (1201) near the flow pipe (1004). A sliding groove (1212) is provided on the inner wall of the inner sleeve (1203). A sealing ring (1213) is slidably connected in the sliding groove (1212). A spring (1215) is installed between the sealing ring (1213) and the groove wall of the sliding groove (1212). A sealing gasket two (1214) that abuts against the inner port (1206) is connected to the end of the sealing ring (1213) away from the spring (1215).

9. A sampling device for food testing according to claim 8, characterized in that: The gear ring three (1211) meshes with the gear four (1208), and the sliding groove (1212) is equipped with a sealing ring one at one end near the rotating right angle tube (1300).

10. A sampling device for food testing according to claim 8, characterized in that: The inner sleeve (1203) has a groove on the inner wall of one end near the guide post (1204). The outer side of the flow tube (1004) is equipped with a track bar (1205) that matches the groove. The outer guide sleeve (1201) on the left is inserted into the rotating right angle tube (1300), and the outer guide sleeve (1201) on the right is inserted into the sample outlet tube (1100).