A food testing sample mashing homogenizer
By designing a clamping and lifting mechanism, combined with cross-shaped stirring blades and scraping plates, the problems of unstable fixing of the homogenizing cup and uneven processing are solved, achieving uniform crushing and mixing of the sample and improving the accuracy of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGNONG FUDE TESTING TECH (BEIJING) CO LTD
- Filing Date
- 2025-08-09
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional food testing sample homogenization equipment is unstable in its homogenization cup, causing shaking or displacement, and resulting in uneven processing, which affects the accuracy of the test results.
The device employs a clamping and lifting mechanism, using a combination of bidirectional and unidirectional threaded screws to achieve stable clamping of the homogenizing cup and precise lifting of the homogenizing mechanism. Combined with cross-shaped stirring blades and scraper plates, it ensures uniform sample processing.
This improves the quality of homogenization, ensuring that all areas of the sample in the homogenizing cup are uniformly crushed and stirred, preventing shaking or displacement, and improving the accuracy of test results.
Smart Images

Figure CN224471371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food testing technology, and in particular to a food testing sample homogenizer. Background Technology
[0002] In the development of the food industry, food quality and safety are of paramount importance, and food testing is a key link in ensuring food quality and safety. Among the steps, homogenizing food samples is an important one before food testing. Its purpose is to break down and mix the food samples evenly so that subsequent component analysis, microbiological testing, and other work can be carried out, providing an accurate sample basis for food quality assessment and safety judgment.
[0003] However, traditional food testing sample homogenizing equipment still has the following problems: 1. Traditional food testing sample homogenizing equipment uses a simple method to fix the homogenizing cup, employing manual pressing or simple clips. During the homogenization process, the high-speed operation of the equipment generates significant vibration, which can easily cause the homogenizing cup to shake or even shift, affecting the sample processing effect; 2. Traditional food testing sample homogenizing equipment has a relatively simple structure. When processing samples, it can only process the central area of the sample, while the sample near the inner wall of the homogenizing cup is difficult to be fully homogenized and stirred, resulting in uneven sample processing and affecting the accuracy of subsequent test results. Therefore, we have introduced a food testing sample homogenizer. Utility Model Content
[0004] The main purpose of this invention is to provide a food testing sample homogenizer that can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A food testing sample homogenizer includes a base, a placement groove at the front upper part of the base, a homogenizing cup being movably fitted in the placement groove, an installation box being fixedly connected to the rear upper part of the base, guide grooves penetrating both the front and rear ends of the installation box, a base plate being fixedly connected to the left end of the base, a clamping mechanism being fixedly installed at the upper end of the base plate, and an L-shaped frame being fixedly connected to the rear end of the base, with a lifting mechanism inserted through the upper end of the L-shaped frame.
[0007] Preferably, the lifting mechanism includes a second motor and a guide rod. A one-way threaded screw is fixedly installed at the output end of the second motor. A second transmission block is threadedly connected to the outer surface of the one-way threaded screw. Guide holes that pass through the upper left and upper right parts of the second transmission block are opened. A pulverizing and homogenizing mechanism is fixedly connected to the front end of the second transmission block. The lower end of the second motor is fixedly connected to the upper end of the L-shaped frame, and the output end of the second motor passes through the upper end of the L-shaped frame and extends into the L-shaped frame.
[0008] By adopting the above technical solution: the second motor drives the unidirectional threaded screw to rotate, thereby driving the second transmission block and the pulverizing and homogenizing mechanism to rise and fall stably.
[0009] Preferably, the pulverizing and homogenizing mechanism includes an L-shaped plate, a third motor is fixedly installed at the upper end of the L-shaped plate, and the output end of the third motor passes through the upper end of the L-shaped plate and extends into the L-shaped plate. A rotating rod is fixedly installed at the output end of the third motor. A plurality of stirring blades are fixedly connected to the outer surface of the rotating rod. A plurality of pulverizing blades are fixedly connected to the upper and lower ends of the plurality of stirring blades. A scraper is fixedly connected to the end of the plurality of stirring blades away from the center of the rotating rod. The rear end of the L-shaped plate is fixedly connected to the front end of the second transmission block.
[0010] By adopting the above technical solution, the third motor drives the rotating rod, stirring blade, crushing head and scraper to work together to achieve efficient crushing and homogenization of the sample. The scraper can also prevent the sample from adhering to the cup wall and improve the processing effect.
[0011] Preferably, there are two guide rods. The upper ends of both guide rods are fixedly connected to the upper inner wall of the L-shaped frame, and the lower ends of both guide rods are fixedly connected to the upper end of the mounting box. The lower end of the one-way threaded screw is movably connected to the upper end of the mounting box through a rotating shaft. The two guide rods are respectively movably sleeved in the corresponding two guide holes.
[0012] By adopting the above technical solution, the two guide rods cooperate with the guide holes of the second transmission block to provide stable guidance for the lifting and lowering of the second transmission block, prevent it from rotating, and ensure that the lifting and lowering of the pulverizing and homogenizing mechanism is smooth and accurate.
[0013] Preferably, the stirring blades are arranged in a cross pattern, and the outer surfaces of the scrapers are in contact with the inner wall of the homogenizing cup.
[0014] By adopting the above technical solution, the cross-shaped stirring blades expand the processing range, and the scraper plate contacts the cup wall, ensuring that the sample is fully processed and improving the homogenization uniformity.
[0015] Preferably, the clamping mechanism includes a motor base, a first motor is fixedly mounted on the upper end of the motor base, a bidirectional threaded screw is fixedly mounted on the output end of the first motor, a first transmission block is threadedly connected to the left and right sides of the outer surface of the bidirectional threaded screw, a first guide block is fixedly connected to the rear end of each of the two first transmission blocks, an anti-disengagement block is fixedly connected to the rear end of each of the two first guide blocks, a second guide block is fixedly connected to the front end of each of the two first transmission blocks, a clamping block is fixedly connected to the front end of each of the two second guide blocks, and a V-groove is formed on the inner side of each of the two clamping blocks. The lower end of the motor base is fixedly connected to the upper end of the base plate.
[0016] By adopting the above technical solution: the first motor drives the bidirectional threaded screw, so that the two clamping blocks move closer or further apart synchronously. The V-groove design enhances the clamping stability of the homogenizing cup and prevents it from shaking.
[0017] Preferably, the output end of the first motor passes through the left end of the mounting box and extends into the mounting box, and the right end of the bidirectional threaded screw is movably connected to the right inner wall of the mounting box through a rotating shaft.
[0018] By adopting the above technical solution, the stable rotation of the bidirectional threaded screw is guaranteed, providing reliable support for the transmission of the clamping mechanism and ensuring smooth clamping action.
[0019] Preferably, the two first guide blocks and the two second guide blocks are movably fitted into the corresponding guide grooves, and the two clamping blocks are located on the left and right sides of the homogenizing cup, respectively.
[0020] By adopting the above technical solution, the movement of the first transmission block is guided and limited, preventing the clamping block from deviating, ensuring accurate clamping, and preventing the component from falling off.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] 1. In this utility model, after the third motor is started, the rotating rod drives several stirring blades, crushing blades and scraping plates that are arranged in a cross shape in pairs to rotate synchronously. The cross-shaped stirring blades and crushing blades can fully crush and stir the samples in different areas of the homogenizing cup, expanding the processing range. At the same time, the outer surface of the scraping plate is in contact with the inner wall of the homogenizing cup. During the rotation, it can scrape off the samples attached to the inner wall of the homogenizing cup in time, so that these samples can participate in the crushing and homogenizing process again. This ensures that the samples in all areas of the homogenizing cup can be fully processed. Whether it is the central area or the sample near the inner wall, it can be uniformly crushed and stirred, which greatly improves the homogenization quality of the sample.
[0023] 2. In this utility model, when the homogenizing cup containing the sample is placed in the placement slot of the base, the first motor in the clamping mechanism is started. The first motor drives the bidirectional threaded screw to rotate, causing the two first transmission blocks to move closer to each other. Then, the clamping blocks are moved through the second guide block until the V-grooves of the two clamping blocks tightly clamp the homogenizing cup. This clamping method utilizes the transmission principle of the bidirectional threaded screw to provide a stable and uniform clamping force, ensuring that the homogenizing cup will not shake or shift during the entire homogenization process. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a food testing sample homogenizer according to the present invention;
[0025] Figure 2 This is a cross-sectional view of the structure of a food testing sample homogenizer according to the present invention (the homogenizing cup and the mounting box are cut out).
[0026] Figure 3 This is a schematic diagram of the clamping mechanism of a food testing sample homogenizer according to the present invention.
[0027] Figure 4 This is a schematic diagram of the lifting mechanism of a food testing sample homogenizer according to the present invention.
[0028] Figure 5 This is an exploded view of the lifting mechanism of a food testing sample homogenizer according to the present invention.
[0029] Figure 6 This is a schematic diagram of the homogenizing mechanism of a food testing sample homogenizer according to the present invention.
[0030] In the diagram: 1. Base; 2. Placement slot; 3. Homogenizing cup; 4. Mounting box; 5. Guide slot; 6. Base plate; 7. Clamping mechanism; 8. L-shaped frame; 9. Lifting mechanism; 71. Motor base; 72. First motor; 73. Bidirectional threaded screw; 74. First transmission block; 75. First guide block; 76. Anti-detachment block; 77. Second guide block; 78. Clamping block; 79. V-groove; 91. Second motor; 92. Guide rod; 93. Unidirectional threaded screw; 94. Second transmission block; 95. Guide hole; 96. Homogenizing and crushing mechanism; 961. L-shaped plate; 962. Rotating rod; 963. Stirring blade; 964. Crushing blade; 965. Scraper; 966. Third motor. Detailed Implementation
[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Please see Figure 1-6 This utility model provides a technical solution:
[0035] A food testing sample homogenizer includes a base 1, a placement groove 2 at the front of the upper end of the base 1, a homogenizing cup 3 movably fitted inside the placement groove 2, an installation box 4 fixedly connected to the rear of the upper end of the base 1, guide grooves 5 through the inside and outside of the installation box 4 at both the front and rear ends, a base plate 6 fixedly connected to the left end of the base 1, a clamping mechanism 7 fixedly installed on the upper end of the base plate 6, and an L-shaped frame 8 fixedly connected to the rear end of the base 1, with a lifting mechanism 9 inserted through the upper end of the L-shaped frame 8.
[0036] In this embodiment, the lifting mechanism 9 includes a second motor 91 and a guide rod 92. A one-way threaded screw 93 is fixedly installed at the output end of the second motor 91. A second transmission block 94 is threadedly connected to the outer surface of the one-way threaded screw 93. Guide holes 95 are provided on the upper left and upper right sides of the second transmission block 94. A pulverizing and homogenizing mechanism 96 is fixedly connected to the front end of the second transmission block 94. The lower end of the second motor 91 is fixedly connected to the upper end of the L-shaped frame 8, and the output end of the second motor 91 passes through the upper end of the L-shaped frame 8 and extends into the L-shaped frame 8. The pulverizing and homogenizing mechanism 96 includes an L-shaped plate 961. A third motor 966 is fixedly installed on the upper end of the L-shaped plate 961. The output end of motor 966 passes through the upper end of L-shaped plate 961 and extends into L-shaped plate 961. A rotating rod 962 is fixedly installed at the output end of the third motor 966. Several stirring blades 963 are fixedly connected to the outer surface of the rotating rod 962. Several crushing blades 964 are fixedly connected to the upper and lower ends of the stirring blades 963. A scraper 965 is fixedly connected to the end of the stirring blades 963 away from the center of the rotating rod 962. The rear end of L-shaped plate 961 is fixedly connected to the front end of second transmission block 94. Two guide rods 92 are provided. The upper ends of the two guide rods 92 are fixedly connected to the upper inner wall of L-shaped frame 8, and the lower ends of the two guide rods 92 are fixed to the upper end of mounting box 4. The connection is as follows: the lower end of the unidirectional threaded screw 93 is movably connected to the upper end of the mounting box 4 via a rotating shaft; two guide rods 92 are respectively movably sleeved in the corresponding two guide holes 95; several stirring blades 963 are arranged in a cross pattern in pairs; the outer surfaces of several scraper plates 965 are in contact with the inner wall surface of the homogenizing cup 3; the clamping mechanism 7 includes a motor base 71, a first motor 72 is fixedly mounted on the upper end of the motor base 71, a bidirectional threaded screw 73 is fixedly mounted on the output end of the first motor 72, and a first transmission block 74 is threadedly connected to the left and right sides of the outer surface of the bidirectional threaded screw 73; the rear ends of the two first transmission blocks 74 are fixedly connected to the first guide blocks 75; the two first guide blocks 75 are fixedly connected to the rear ends of the two first transmission blocks 74. Each guide block 75 has an anti-detachment block 76 fixedly connected to its rear end. Each of the two first transmission blocks 74 has a second guide block 77 fixedly connected to its front end. Each of the two second guide blocks 77 has a clamping block 78 fixedly connected to its front end. Each of the two clamping blocks 78 has a V-groove 79 on its inner side. The lower end of the motor base 71 is fixedly connected to the upper end of the base plate 6. The output end of the first motor 72 passes through the left end of the mounting box 4 and extends into the mounting box 4. The right end of the bidirectional threaded screw 73 is movably connected to the right inner wall of the mounting box 4 through a rotating shaft. The two first guide blocks 75 and the two second guide blocks 77 are respectively movably sleeved in the corresponding guide grooves 5. The two clamping blocks 78 are located to the left and right of the homogenizing cup 3, respectively.
[0037] It should be noted that this utility model is a food testing sample homogenizer. In use, the food testing sample to be processed is loaded into the homogenizing cup 3, and the homogenizing cup 3 containing the sample is placed in the placement groove 2 at the front of the upper end of the base 1 to ensure stable placement. The first motor 72 in the clamping mechanism 7 is activated, driving the bidirectional threaded screw 73 to rotate, causing the two first transmission blocks 74 to move closer to each other on the bidirectional threaded screw 73. As the first transmission blocks 74 move, the two second guide blocks 77 drive the clamping blocks 78 to move synchronously until the V-shaped grooves 79 of the two clamping blocks 78 are closed. Clamp the homogenizing cup 3 tightly, then turn off the first motor 72 and start the second motor 91 in the lifting mechanism 9. The second motor 91 drives the one-way threaded screw 93 to rotate, causing the second transmission block 94 to move downward along the guide rod 92. Since the front end of the second transmission block 94 is fixedly connected to the L-shaped plate 961 of the homogenizing mechanism 96, the homogenizing mechanism 96 moves downward accordingly until the rotating rod 962, stirring blade 963, crushing cutter head 964, and scraper plate 965 extend into the homogenizing cup 3 to the appropriate position. Then, turn off the second motor 91 and start the third motor 966 in the homogenizing mechanism 96. Motor 966 drives rotor 962 to rotate, which in turn drives several stirring blades 963, crushing blades 964, and scraper 965 to rotate synchronously. During this process, crushing blades 964 crush the sample, stirring blades 963 agitate and homogenize the sample, and scraper 965 scrapes off the sample adhering to the inner wall of homogenization cup 3, ensuring uniform sample processing. After sample processing is completed, the third motor 966 is turned off, stopping the rotation of rotor 962, stirring blades 963, crushing blades 964, and scraper 965. The second motor 91 is then restarted and rotated in the reverse direction, driving a one-way screw... The threaded screw 93 rotates in the reverse direction, and the second transmission block 94 moves upward along the guide rod 92, thereby causing the homogenizing mechanism 96 to move upward until the rotating rod 962, stirring blade 963, crushing blade 964 and scraper 965 are completely disengaged from the homogenizing cup 3. The second motor 91 is turned off, and the first motor 72 is started to rotate in the reverse direction, driving the bidirectional threaded screw 73 to rotate in the reverse direction. The two first transmission blocks 74 move away from each other, thereby causing the two clamping blocks 78 to release their clamping on the homogenizing cup 3. The first motor 72 is turned off, and the homogenizing cup 3 is taken out from the placement tank 2. The processed sample is poured out for subsequent testing.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A food sample homogenizer for testing, comprising a base (1), characterized in that: The base (1) has a placement groove (2) at the front of its upper end, and a homogenizing cup (3) is movably fitted in the placement groove (2). The base (1) has a mounting box (4) fixedly connected to its rear upper end. The mounting box (4) has guide grooves (5) that pass through both the front and rear ends. The base (1) has a base plate (6) fixedly connected to its left end, and a clamping mechanism (7) is fixedly installed on the upper end of the base plate (6). The base (1) has an L-shaped frame (8) fixedly connected to its rear end, and a lifting mechanism (9) is inserted into the upper end of the L-shaped frame (8). The lifting mechanism (9) includes a second motor (91) and a guide rod (92). The output end of the second motor (91) is fixedly installed with a one-way threaded screw (93). The outer surface of the one-way threaded screw (93) is threadedly connected to a second transmission block (94). The upper left and upper right parts of the second transmission block (94) are both provided with guide holes (95) that pass through vertically. The front end of the second transmission block (94) is fixedly connected to a pulverizing and homogenizing mechanism (96). The lower end of the second motor (91) is fixedly connected to the upper end of the L-shaped frame (8), and the output end of the second motor (91) passes through the upper end of the L-shaped frame (8) and extends into the L-shaped frame (8). The pulverizing and homogenizing mechanism (96) includes an L-shaped plate (961). A third motor (966) is fixedly installed on the upper end of the L-shaped plate (961), and the output end of the third motor (966) passes through the upper end of the L-shaped plate (961) and extends into the L-shaped plate (961). A rotating rod (962) is fixedly installed on the output end of the third motor (966). A plurality of stirring blades (963) are fixedly connected to the outer surface of the rotating rod (962). A plurality of pulverizing blades (964) are fixedly connected to the upper and lower ends of the plurality of stirring blades (963). A scraper (965) is fixedly connected to the end of the plurality of stirring blades (963) away from the center of the rotating rod (962). The rear end of the L-shaped plate (961) is fixedly connected to the front end of the second transmission block (94).
2. The food testing sample homogenizer according to claim 1, characterized in that: Two guide rods (92) are provided. The upper ends of the two guide rods (92) are fixedly connected to the upper inner wall of the L-shaped frame (8), and the lower ends of the two guide rods (92) are fixedly connected to the upper end of the mounting box (4). The lower end of the one-way threaded screw (93) is movably connected to the upper end of the mounting box (4) through a rotating shaft. The two guide rods (92) are respectively movably sleeved in the corresponding two guide holes (95).
3. The food testing sample homogenizer according to claim 1, characterized in that: Several stirring blades (963) are arranged in a cross pattern, and the outer surfaces of several scraper plates (965) are in contact with the inner wall of the homogenizing cup (3).
4. The food testing sample homogenizer according to claim 1, characterized in that: The clamping mechanism (7) includes a motor base (71), on which a first motor (72) is fixedly mounted. A bidirectional threaded screw (73) is fixedly mounted at the output end of the first motor (72). A first transmission block (74) is threadedly connected to the left and right sides of the outer surface of the bidirectional threaded screw (73). A first guide block (75) is fixedly connected to the rear end of each of the two first transmission blocks (74). An anti-detachment block (76) is fixedly connected to the rear end of each of the two first guide blocks (75). A second guide block (77) is fixedly connected to the front end of each of the two first transmission blocks (74). A clamping block (78) is fixedly connected to the front end of each of the two second guide blocks (77). A V-groove (79) is opened on the inner side of each of the two clamping blocks (78). The lower end of the motor base (71) is fixedly connected to the upper end of the base plate (6).
5. The food testing sample homogenizer according to claim 4, characterized in that: The output end of the first motor (72) passes through the left end of the mounting box (4) and extends into the mounting box (4). The right end of the bidirectional threaded screw (73) is movably connected to the right inner wall of the mounting box (4) through a rotating shaft.
6. The food testing sample homogenizer according to claim 4, characterized in that: Two first guide blocks (75) and two second guide blocks (77) are respectively movably fitted into the corresponding guide grooves (5), and the two clamping blocks (78) are respectively located to the left and right of the homogenizing cup (3).