A sample crushing and mixing device for food detection
By designing a shredder and shovel, and combining it with a micro compressor to provide pulsed airflow, the problem of food adhering to the shredder surface is solved, enabling efficient mixing and crushing of food test samples, improving mixing uniformity and the reliability of test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 阜新市食品与粮农产品检验检测中心
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-19
Smart Images

Figure CN224371257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food crushing and mixing technology, and in particular to a sample crushing and mixing device for food testing. Background Technology
[0002] In the field of food testing, accurate and efficient sample processing is crucial for ensuring the reliability of test results. Sample crushing and mixing, as an important pretreatment step in food testing, aims to break food samples to a suitable particle size and mix them uniformly for subsequent analysis. With the rapid development of the food industry, the variety of food products is increasing, and their composition is becoming more complex, placing higher demands on the performance of sample crushing and mixing devices used in food testing.
[0003] Most current crushing and mixing devices use high-speed rotary cutters for both crushing and mixing, but the following problems exist in practical use:
[0004] When the rotary blade is used for high-speed crushing and mixing, too much food tends to adhere to its surface, making it difficult for this part of the food to mix effectively with other parts, thus affecting the uniformity of the mixture. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sample crushing and mixing device for food testing, which effectively solves the deficiencies of the prior art.
[0006] The purpose of this utility model is achieved through the following technical solution: A sample crushing and mixing device for food testing, comprising a crushing cup and a power head, wherein a positioning center shaft is fixedly connected to the center of the bottom surface of the inner wall of the crushing cup, a rotating shaft is sleeved on the outer wall of the positioning center shaft, a plurality of crushing rotary blades are fixedly connected to the outer wall of the rotating shaft, a plurality of shovels are fixedly connected to the bottom of the outer wall of the rotating shaft, an air guide channel is opened at the center of the rotating shaft, a plurality of air outlets are opened on the side of the rotating shaft, the plurality of air outlets correspond to the positions of the plurality of crushing rotary blades and the plurality of shovels on both sides, a top cover is provided on the top of the crushing cup, the top end of the rotating shaft passes through the center of the top surface of the top cover, a gear coupling is fixedly connected to the top end of the rotating shaft, the air guide channel passes through the center of the gear coupling, a mating ring is fixedly connected to the center of the top surface of the top cover, and a mating joint is fixedly connected to the bottom surface of the power head. The connector can be interlocked with the mating ring. A rotating tube is rotatably connected to the middle of the mating joint. An internal toothed slot is provided at the bottom of the inner wall of the rotating tube. The internal toothed slot can be interlocked with the gear mating joint. A driven gear is fixedly connected to the top of the outer wall of the rotating tube. A drive motor is fixedly connected to one side of the bottom surface of the inner wall of the power head. A drive gear is fixedly connected to the output end of the drive motor. The drive gear meshes with the driven gear. A rotating joint is fixedly connected to the top of the rotating tube. A micro compressor is fixedly connected to one side of the bottom surface of the inner wall of the power head. An electronic pulse valve is fixedly connected to the output end of the micro compressor. An air pipe is fixedly connected to the output end of the electronic pulse valve. The output end of the air pipe is fixedly connected to and communicates with the top of the rotating joint. The rotating tube is rotatably connected to the air pipe through the rotating joint. Several exhaust holes are provided on the surface of the top cover.
[0007] Preferably, in any of the above embodiments, the plurality of crushing rotary blades and the plurality of shovels are arranged in a radial annular array around the center of the rotating shaft, the plurality of shovels are inclined, and the bottom of the plurality of shovels is in contact with the bottom surface of the inner wall of the crushing cup.
[0008] The technical effect achieved by adopting the above solution is that the inclined plane guides the food to be continuously lifted and dropped, thereby achieving the stirring and tumbling of the food at the bottom and improving the mixing effect.
[0009] Preferably, in any of the above embodiments, the inner wall of the mating ring is provided with a plurality of mating slots, and the side of the mating joint is fixedly connected with a plurality of mating heads, the plurality of mating heads corresponding to the positions of the plurality of mating slots, and the plurality of mating heads and the plurality of mating slots can be fitted together.
[0010] The technical effect achieved by adopting the above solution is that by interlocking several docking heads and several docking slots, the docking ring can restrict the rotation of the docking head, which facilitates the stable positioning of the power head.
[0011] Preferably, in any of the above solutions, the depth of the inner wall of the internal toothed jaw is adapted to the length of the gear coupling joint, and the length of the gear coupling joint is adapted to the height of the mating ring.
[0012] The technical effect achieved by adopting the above solution is that after the mating ring and the mating head are fully mated, the gear mating head can be fully inserted into the internal gear bayonet.
[0013] Preferably, in any of the above schemes, the diameter of the inner wall of the rotating tube is adapted to the diameter of the inner wall of the air guide channel, and the top end of the positioning center shaft is a hemispherical structure.
[0014] The technical effect achieved by adopting the above solution is that the hemispherical structure makes it easy to guide the positioning center shaft into the inner wall of the moving shaft, which facilitates the installation and positioning of the moving shaft.
[0015] This utility model has the following advantages:
[0016] 1. This food testing sample crushing and mixing device drives a rotating tube to rotate via a drive motor and a drive gear and driven gear transmission. Simultaneously, it drives a rotating shaft to rotate via an internal gear bayonet and a gear connector, thereby driving several crushing blades to rotate and crush. A micro compressor continuously supplies compressed air, and an electronic pulse valve releases the airflow in pulses. The airflow is delivered to several air outlets through an air pipe, rotating tube, and air guide channel, allowing the sides of the crushing blades to be swept by pulsed airflow while crushing, causing adhering food to detach and participate in the mixing process. Furthermore, the continuously blown air causes the food to tumble, improving the mixing effect.
[0017] 2. This food testing sample crushing and mixing device uses a rotating shaft to drive several shovels to rotate, which can scoop up the food deposited at the bottom of the crushing cup. The inclined plane guides the food to be continuously lifted and dropped, achieving stirring and tumbling of the food at the bottom and improving the mixing effect. Attached Figure Description
[0018] Figure 1 This is a first-view structural schematic diagram of the present invention;
[0019] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;
[0020] Figure 3 This is a schematic diagram of the internal structure of this utility model.
[0021] In the diagram: 1-Crushing cup, 2-Power head, 3-Top cover, 4-Matching ring, 5-Matching slot, 6-Rotating shaft, 7-Gear coupling, 8-Air guide channel, 9-Shovel plate, 10-Crushing rotary blade, 11-Air outlet, 12-Rotating tube, 13-Internal gear bayonet, 14-Matching joint, 15-Driven gear, 16-Rotating joint, 17-Miniature compressor, 18-Electronic pulse valve, 19-Air pipe, 20-Drive motor, 21-Drive gear, 22-Positioning center shaft, 23-Matching head. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.
[0023] like Figures 1 to 3 As shown, a sample crushing and mixing device for food testing includes a crushing cup 1 and a power head 2. A positioning center shaft 22 is fixedly connected to the center of the bottom surface of the inner wall of the crushing cup 1. A rotating shaft 6 is sleeved on the outer wall of the positioning center shaft 22. Several crushing blades 10 are fixedly connected to the outer wall of the rotating shaft 6. Several shovels 9 are fixedly connected to the bottom of the outer wall of the rotating shaft 6. An air guide channel 8 is opened at the center of the rotating shaft 6. Several air outlets 11 are opened on the side of the rotating shaft 6, and the positions of the air outlets 11 correspond to the positions of the crushing blades 10 and the shovels 9 on both sides. A top cover 3 covers the top of the crushing cup 1. The top of the rotating shaft 6 passes through the center of the top surface of the top cover 3. A gear coupling 7 is fixedly connected to the top of the rotating shaft 6. The air guide channel 8 passes through the center of the gear coupling 7. A mating ring 4 is fixedly connected to the center of the top surface of the top cover 3. A mating joint 14 is fixedly connected to the bottom surface of the power head 2. The mating joint 14 can be interlocked with the mating ring 4. A rotating tube 12 is rotatably connected to the middle of the connector 14. An internal toothed slot 13 is provided at the bottom of the inner wall of the rotating tube 12. The internal toothed slot 13 can be interlocked with the gear connector 7. A driven gear 15 is fixedly connected to the top of the outer wall of the rotating tube 12. A drive motor 20 is fixedly connected to one side of the bottom surface of the inner wall of the power head 2. A drive gear 21 is fixedly connected to the output end of the drive motor 20. The drive gear 21 meshes with the driven gear 15. A rotating connector 16 is fixedly connected to the top of the rotating tube 12. A micro compressor 17 is fixedly connected to one side of the bottom surface of the inner wall of the power head 2. An electronic pulse valve 18 is fixedly connected to the output end of the micro compressor 17. An air pipe 19 is fixedly connected to the output end of the electronic pulse valve 18. The output end of the air pipe 19 is fixedly connected to the top of the rotating connector 16 and communicates with it. The rotating tube 12 is rotatably connected to the air pipe 19 through the rotating connector 16. Several exhaust holes are provided on the surface of the top cover 3.
[0024] As an optional technical solution of this utility model: a plurality of crushing rotary blades 10 and a plurality of shovels 9 are arranged in a radial ring array around the center of the rotating shaft 6. The plurality of shovels 9 are all inclined and the bottom of the plurality of shovels 9 are in contact with the bottom surface of the inner wall of the crushing cup 1. The rotation of the rotating shaft 6 drives the plurality of shovels 9 to rotate and scoop up the food deposited on the bottom surface of the crushing cup 1. The inclined surface guides the food to be continuously lifted and dropped, thereby realizing the stirring and tumbling of the food at the bottom and improving the mixing effect.
[0025] As an optional technical solution of this utility model: the inner wall of the mating ring 4 is provided with a plurality of mating slots 5, and the side of the mating head 14 is fixedly connected with a plurality of mating heads 23. The positions of the plurality of mating heads 23 correspond to the positions of the plurality of mating slots 5 respectively. The plurality of mating heads 23 and the plurality of mating slots 5 can be fitted together. By the mutual fitting of the plurality of mating heads 23 and the plurality of mating slots 5, the mating ring 4 can restrict the rotation of the mating head 14, which facilitates the stable positioning of the power head 2.
[0026] As an optional technical solution of this utility model: the depth of the inner wall of the internal toothed bayonet 13 is adapted to the length of the gear coupling 7, and the length of the gear coupling 7 is adapted to the height of the mating ring 4, so that after the mating ring 4 and the coupling 14 are fully mated, the gear coupling 7 can be fully inserted into the internal toothed bayonet 13.
[0027] As an optional technical solution of this utility model: the diameter of the inner wall of the rotating tube 12 is adapted to the diameter of the inner wall of the air guide channel 8, and the top of the positioning center shaft 22 is a hemispherical structure. The hemispherical structure facilitates the insertion of the positioning center shaft 22 into the inner wall of the rotating shaft 6, which is convenient for the installation and positioning of the rotating shaft 6.
[0028] The working process of this utility model is as follows: When the user uses it...
[0029] 1) The drive motor 20 and the drive gear 21 and driven gear 15 can drive the rotating tube 12 to rotate. The internal gear bayonet 13 and the gear connector 7 can be inserted to drive the rotating shaft 6 to rotate, thereby driving several crushing rotary blades 10 to rotate and crush.
[0030] 2) Compressed air is continuously supplied by the micro compressor 17, and the airflow is released by the electronic pulse valve 18. The airflow is delivered to several air outlets 11 through the air pipe 19, the rotating pipe 12 and the air guide channel 8, so that the two sides of several crushing blades 10 are swept by the pulse airflow while crushing, causing the adhering food to fall off. The blown air continuously drives the food to tumble, improving the mixing effect.
[0031] 3) The rotation of the shaft 6 drives the rotation of several shovels 9, which can scoop up the food deposited on the bottom of the crushing cup 1. The inclined plane guides the food to be continuously lifted and dropped, realizing the stirring and tumbling of the food at the bottom and improving the mixing effect.
[0032] In summary, this utility model, through the drive motor 20 and the drive gear 21 and driven gear 15, can drive the rotating tube 12 to rotate. Through the internal gear bayonet 13 and the gear connector 7, it can simultaneously drive the rotating shaft 6 to rotate, thereby driving several crushing blades 10 to rotate and crush. The micro compressor 17 continuously provides compressed air, and the electronic pulse valve 18 releases the airflow in pulses. The airflow is transported to several air outlets 11 through the air pipe 19, the rotating tube 12 and the air guide channel 8, so that the two sides of the crushing blades 10 are swept by the pulsed airflow while crushing, causing the adhered food to fall off and participate in the mixing. Moreover, the blown air continuously drives the food to tumble, improving the mixing effect. The rotation of the rotating shaft 6 drives several shovels 9 to rotate and scoop up the food deposited on the bottom of the crushing cup 1. The inclined plane guides the food to continuously lift and fall, realizing the stirring and tumbling of the food at the bottom, improving the mixing effect.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sample crushing and mixing device for food testing, characterized in that: The device includes a crushing cup (1) and a power head (2). A positioning center shaft (22) is fixedly connected to the center of the bottom surface of the inner wall of the crushing cup (1). A rotating shaft (6) is sleeved on the outer wall of the positioning center shaft (22). Several crushing blades (10) are fixedly connected to the outer wall of the rotating shaft (6). Several shovels (9) are fixedly connected to the bottom of the outer wall of the rotating shaft (6). An air guide channel (8) is opened at the center of the rotating shaft (6). Several air outlets (11) are opened on the side of the rotating shaft (6). The several air outlets (11) are respectively connected to several crushing blades (10). The positions of the two sides of the 0) and several shovels (9) correspond to each other. The top of the crushing cup (1) is covered with a top cover (3). The top of the rotating shaft (6) passes through the center of the top surface of the top cover (3). The top of the rotating shaft (6) is fixedly connected to a gear coupling (7). The air guide channel (8) passes through the center of the gear coupling (7). The middle of the top surface of the top cover (3) is fixedly connected to a mating ring (4). The bottom surface of the power head (2) is fixedly connected to a coupling (14). The coupling (14) can be interlocked with the mating ring (4). A rotating tube (12) is rotatably connected to the middle of the rotating tube (12). An internal toothed slot (13) is provided at the bottom of the inner wall of the rotating tube (12). The internal toothed slot (13) can be engaged with the gear coupling (7). A driven gear (15) is fixedly connected to the top of the outer wall of the rotating tube (12). A drive motor (20) is fixedly connected to one side of the bottom surface of the inner wall of the power head (2). A drive gear (21) is fixedly connected to the output end of the drive motor (20). The drive gear (21) meshes with the driven gear (15). The rotating tube (12) A rotating joint (16) is fixedly connected to the top of the power head (2). A micro compressor (17) is fixedly connected to one side of the bottom surface of the inner wall of the power head (2). An electronic pulse valve (18) is fixedly connected to the output end of the micro compressor (17). An air pipe (19) is fixedly connected to the output end of the electronic pulse valve (18). The output end of the air pipe (19) is fixedly connected to the top of the rotating joint (16) and communicates with it. The rotating pipe (12) is rotatably connected to the air pipe (19) through the rotating joint (16). Several exhaust holes are opened on the surface of the top cover (3).
2. The sample crushing and mixing device for food testing according to claim 1, characterized in that: Several of the aforementioned shredding blades (10) and several of the shovels (9) are arranged in a radial ring array around the center of the rotating shaft (6). Several of the shovels (9) are inclined and their bottoms are in contact with the bottom surface of the inner wall of the crushing cup (1).
3. The sample crushing and mixing device for food testing according to claim 1, characterized in that: The inner wall of the mating ring (4) is provided with several mating slots (5), and the side of the mating head (14) is fixedly connected with several mating heads (23). The positions of the several mating heads (23) correspond to the positions of the several mating slots (5), and the several mating heads (23) and the several mating slots (5) can be fitted together.
4. The sample crushing and mixing device for food testing according to claim 1, characterized in that: The depth of the inner wall of the internal toothed jaw (13) is adapted to the length of the gear coupling (7), and the length of the gear coupling (7) is adapted to the height of the mating ring (4).
5. The sample crushing and mixing device for food testing according to claim 1, characterized in that: The diameter of the inner wall of the rotating tube (12) is adapted to the diameter of the inner wall of the air guide channel (8), and the top end of the positioning center shaft (22) is a hemispherical structure.