A food testing sample grinding and pulverizing device

Abstract

This utility model belongs to the technical field of grinding and pulverizing devices, specifically a grinding and pulverizing device for food testing samples, including a pulverizing chamber. The feeding mechanism facilitates feeding during the pulverizing process without sample splashing from the feeding port, ensuring the overall uniformity of the food sample. The food sample is placed in the pulverizing chamber, the top plate is released, and the limiting frame moves and positions the top plate. The motor is started, and the motor drives the drive rod and the pulverizing blades on it to rotate rapidly, grinding and pulverizing the food sample. If feeding is needed during the pulverizing process, the rotating actuating block drives the connecting ring to rotate, aligning the first and third feeding ports. The food sample is placed from the third feeding port into the first feeding port. The reverse-push actuating block resets the connecting ring, causing the first and second feeding ports to misalign. The sample falls through the second feeding port into the pulverizing chamber and is ground and pulverized together with the sample being pulverized.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding and pulverizing devices, specifically a grinding and pulverizing device for food testing samples. Background Technology

[0002] In the field of food quality and safety testing, accurate testing of food samples is a key link in ensuring food safety. The grinding and pulverization of samples is one of the core steps in pre-testing treatment. Solid or semi-solid food samples need to be ground into a uniform and fine state to ensure the representativeness of the samples and the accuracy of the test results in subsequent testing processes.

[0003] Current food sample grinding and pulverizing devices typically consist of a grinding chamber, a motor installed inside the grinding chamber, a drive rod fixedly connected to the motor output end, and pulverizing blades fixedly connected to the outer wall of the drive rod. The food sample to be pulverized is put into the grinding chamber, and the motor is started to drive the drive rod and the multiple equidistantly distributed pulverizing blades on it to rotate and pulverize the food sample.

[0004] In practical testing scenarios, there are situations where it is necessary to add samples intermediately. For example, if the initial sample volume is insufficient, additional samples need to be added, or for mixed samples with obvious stratification (such as fruit samples containing solid particles and juice), samples need to be added in stages. However, most mechanical grinding devices currently have a closed grinding chamber design. Adding samples requires stopping the machine and opening the chamber, which not only interrupts the grinding process, causing particles in the ground sample to settle due to settling, affecting the overall uniformity, but also allows outside air and dust to enter, increasing the risk of sample contamination. Some devices that can be opened midway lack a temporary sealing structure, making it easy for samples to splash when the lid is opened. Therefore, a food testing sample grinding and pulverizing device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, a food testing sample grinding and pulverizing device is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The food testing sample grinding and pulverizing device of this utility model includes a pulverizing box and a top plate; a motor is fixedly connected to the top of the top plate, the output end of the motor passes through the top plate and is fixedly connected to a connecting rod, a driving rod is slidably connected to the outer wall of the connecting rod, a pulverizing blade is fixedly connected to the outer wall of the driving rod, a positioning component is provided on the pulverizing box, and the positioning component is used to limit the top plate to the top of the pulverizing box; The top plate is equipped with a feeding mechanism, which includes a connecting ring rotatably connected to the bottom of the top plate, a shielding ring rotatably connected to the bottom of the connecting ring, a first feeding port on the top of the connecting ring, a second feeding port on the top of the shielding ring, and a third feeding port on the top of the top plate. The feeding mechanism facilitates feeding during the crushing process and prevents samples from splashing from the feeding ports, thus ensuring the overall uniformity of the food samples.

[0007] Preferably, a toggle block is fixedly connected to one side of the outer wall of the connecting ring. The outer wall of the toggle block is provided with anti-slip texture. The toggle block facilitates the rotation of the connecting ring by pushing the toggle block.

[0008] Preferably, the inner wall of the crushing chamber is provided with a fitting groove, and the bottom of the shielding ring is fixedly connected with a fitting block. The bottom end of the fitting block is inserted into the fitting groove. By setting the fitting groove and the fitting block, it is easy to rotate and limit the connecting ring, so as to avoid the connecting ring from rotating synchronously due to the inconvenience of sample crushing, which would affect the crushing.

[0009] Preferably, a first sealing ring is provided at the top of the connecting ring, and a sealing gasket is provided inside the first sealing ring. The sealing between the connecting ring and the top plate can be easily ensured by the arrangement of the first sealing ring and the sealing gasket.

[0010] Preferably, the top of the shielding ring is provided with a second sealing ring, and a sealing gasket is provided inside the second sealing ring. The second sealing ring and the sealing gasket can facilitate the sealing between the connecting ring and the shielding ring.

[0011] Preferably, the positioning component includes a fixed frame fixedly connected to one side of the crushing box, a fixed rod slidably connected to the inner wall of the fixed frame, a limit frame slidably connected to the outer wall of the fixed rod, and a spring sleeved on the outside of the fixed rod. The positioning component is formed by the arrangement and cooperation of the fixed rod, the fixed frame, the limit frame and the spring.

[0012] Preferably, an observation port is provided on one side of the outer wall of the crushing chamber, and a transparent block is fixedly connected to the inner wall of the observation port. The crushing status of the sample in the crushing chamber can be easily observed at any time through the setting of the observation port and the transparent block.

[0013] The beneficial effects of this utility model are: This utility model provides a food testing sample grinding and pulverizing device. The feeding mechanism facilitates feeding during the pulverizing process without sample splashing from the feeding port, ensuring the overall uniformity of the food sample. The food sample is placed in the pulverizing chamber, the top plate is released, and the limiting frame rotates and raises the top plate for positioning. The motor is started, and the motor drives the drive rod and the pulverizing blades on it to rotate rapidly, grinding and pulverizing the food sample. If feeding is needed during pulverizing, the rotating block drives the connecting ring to rotate, aligning the first and third feeding ports. The food sample is placed from the third feeding port into the first feeding port. Pushing the rotating block back causes the connecting ring to reset, misaligning the first and second feeding ports. The sample falls through the second feeding port into the pulverizing chamber and is ground and pulverized together with the sample being pulverized. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded cross-sectional view of the fixing frame in this utility model; Figure 3 This is an exploded structural diagram of the crushing box, connecting ring, and shielding ring in this utility model; Figure 4 This is a bottom view of the top plate and the shielding ring in this utility model.

[0015] Legend: 1. Crushing box; 2. Top plate; 3. Motor; 4. Drive rod; 5. Crushing blade; 6. Feeding mechanism; 61. Connecting ring; 62. Shielding ring; 63. First feeding port; 64. Second feeding port; 65. Third feeding port; 7. Actuating block; 8. Fitting groove; 9. Fitting block; 10. First sealing ring; 11. Second sealing ring; 12. Fixing frame; 13. Fixing rod; 14. Limiting frame; 15. Spring; 16. Observation port. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples are given below.

[0018] Please see Figures 1-4 This utility model provides a food testing sample grinding and pulverizing device, including a cylindrical pulverizing box 1 and a circular top plate 2; An arc-shaped observation port 16 is provided on one side of the outer wall of the grinding chamber 1. An arc-shaped transparent block is fixedly connected to the inner wall of the observation port 16. The transparent block is made of food-grade ABS material. The observation port 16 and the transparent block allow for easy observation of the grinding process of the sample inside the grinding chamber 1 at any time. A motor 3 is fixedly connected to the top of the top plate 2. The motor 3 can be connected to the socket via a cable and plug for power supply. This is a mature existing technology, so it will not be described in detail or shown in the figure. The positioning block and positioning plate on it are also shown. The top of the top plate 2 has a through hole that matches the output end of the motor 3. The output end of the motor 3 passes through the through hole and is fixedly connected to a cuboid connecting rod. A cylindrical drive rod 4 with a rectangular through groove in the middle is slidably connected to the outer wall of the connecting rod. A crushing blade 5 is fixedly connected to the outer wall of the drive rod 4. The crushing chamber 1 is provided with a positioning element, which is used to limit the top plate 2 at the top of the crushing chamber 1; The positioning component includes a fixing frame 12 fixedly connected to one side of the crushing box 1. The fixing frame 12 is a cuboid with a rectangular groove on the top. A rectangular fixing rod 13 is slidably connected to the inner wall of the fixing frame 12. An L-shaped limiting frame 14 is slidably connected to the outer wall of the fixing rod 13. A through hole adapted to the fixing rod 13 is opened on one side of the limiting frame 14. A spring 15 is sleeved on the outside of the fixing rod 13. The spring 15 is located at the end of the limiting frame 14 away from the crushing box 1. Meanwhile, a rectangular auxiliary groove adapted to the limiting frame 14 is provided on the top of the top plate 2, so that the top plate 2 can be further rotated and raised and limited by the limiting frame 14. The positioning component is formed by the arrangement and cooperation of the fixing rod 13, the fixing frame 12, the limiting frame 14 and the spring 15; A feeding mechanism 6 is provided on the top plate 2. The feeding mechanism 6 includes a circular connecting ring 61 rotatably connected to the bottom of the top plate 2. Two annularly distributed actuating blocks 7 are fixedly connected to one side of the outer wall of the connecting ring 61. The actuating blocks 7 are semi-circular and the outer wall of the actuating blocks 7 is provided with anti-slip texture. The actuating blocks 7 are designed to facilitate the rotation of the connecting ring 61 by pushing the actuating blocks 7. A circular first sealing ring 10 is provided at the top of the connecting ring 61. A sealing gasket is provided inside the first sealing ring 10. The first sealing ring 10 and the sealing gasket can help ensure the sealing between the connecting ring 61 and the top plate 2. A circular shielding ring 62 is rotatably connected to the bottom of the connecting ring 61. A circular second sealing ring 11 is provided at the top of the shielding ring 62. A sealing gasket is provided inside the second sealing ring 11. The sealing performance between the connecting ring 61 and the shielding ring 62 can be easily guaranteed by the second sealing ring 11 and the sealing gasket. The inner side wall of the crushing box 1 has two rectangular fitting grooves 8, which are equidistantly distributed in a ring. The bottom of the shielding ring 62 is fixedly connected to two rectangular fitting blocks 9, which are equidistantly distributed in a ring. The bottom end of the fitting block 9 is inserted into the fitting groove 8. By setting the interlocking groove 8 and the interlocking block 9, it is easy to limit the rotation of the connecting ring 61, so as to avoid the connecting ring 61 from rotating synchronously due to the inconvenience of sample crushing, which would affect the crushing. The top of the connecting ring 61 is provided with a rectangular first feeding port 63, the top of the shielding ring 62 is provided with a rectangular second feeding port 64, and the top of the top plate 2 is provided with a rectangular third feeding port 65. The first feeding port 63, the second feeding port 64 and the third feeding port 65 are the same size. The feeding mechanism 6 facilitates the addition of materials during the crushing process and prevents samples from splashing from the feeding port, thus ensuring the overall uniformity of the food samples.

[0019] Based on the above structure, the present invention includes the following implementation process: Pull the limiting frame 14 to move it away from the motor 3, so that the limiting frame 14 is out of contact with the top plate 2, releasing the movement positioning of the top plate 2. At the same time, the limiting machine applies pressure to the spring 15, pulling the top plate 2 upward. The top plate 2 drives the connecting rod to move upward, while the drive rod 4 and the crushing blade 5 remain in the crushing box 1. However, the connecting rod is not completely disengaged from the drive rod 4 to ensure that the drive rod 4 will not tip over and leak out of the crushing area of ​​the crushing box 1. Place the food sample to be crushed and pre-cut to a size that can fit into the crushing box 1 into the crushing box 1. Release the top plate 2, the top plate 2 falls down and drives the connecting rod to reset, until the top plate 2 drives the shielding ring 62 to reset through the connecting ring 61, and the bottom of the shielding ring 62 abuts against the top of the crushing box 1. At this time, it should be noted that the protruding end of the limiting frame 14 should be aligned with the auxiliary groove on the top plate 2, and the fitting block 9 should also be aligned with the fitting groove 8. The fitting block 9 is reinserted into the fitting block 9 to rotate and limit the connecting ring 61. The limiting frame 14 is released. Under the pressure of the spring 15, the limiting frame 14 is reset and its protruding end is inserted into the auxiliary groove to rotate and position the top plate 2. The motor 3 can be started to drive the connecting rod to rotate, and the connecting rod drives the drive rod 4 and the crushing blade 5 on it to rotate quickly to grind and crush the food sample enclosed in the crushing box 1. During the crushing process, if additional material is needed, the actuating block 7 can be rotated to drive the connecting ring 61 to rotate, so that the first feeding port 63 and the third feeding port 65 are aligned and perpendicular to each other, but the second feeding port 64 is misaligned with the first feeding port 63. Food samples cut to be able to pass through the third feeding port 65 can be placed into the first feeding port 63 from the third feeding port 65. The additional sample is blocked by the shielding ring 62 and will not fall into the crushing box 1, and also ensures that the food sample will not splash out from the third feeding port 65 and the first feeding port 63 during the crushing process. Then, the reverse push block 7 drives the connecting ring 61 to reset, so that the first feeding port 63 and the second feeding port 64 are misaligned and aligned, perpendicular and parallel to each other. The shielding ring 62 no longer supports the replenished sample. The sample falls into the crushing box 1 through the second feeding port 64 and is ground and crushed by the crushing blade 5 together with the sample being crushed. The crushing situation can be observed through the observation port 16. During this process, the first feeding port 63 and the second feeding port 64 are misaligned, and the food sample in the crushing process will not splash out from the third feeding port 65 and the first feeding port 63. After the food sample is pulverized to the specified required state, the motor 3 stops and pushes the limit frame 14 again. The limit frame 14 disengages from the top plate 2, the top plate 2 is removed, and the drive rod 4 and pulverizing blade 5 are removed simultaneously to clean the food sample residue attached to them. The pulverized food sample in the pulverizing chamber 1 is then poured into the prepared sample container, and the pulverizing chamber 1 is cleaned to prevent food sample residue from affecting the accuracy of the next food sample.

[0020] 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 claimed utility model.

Claims

1. A food testing sample grinding and pulverizing device, characterized in that: It includes a crushing box (1) and a top plate (2); a motor (3) is fixedly connected to the top of the top plate (2), the output end of the motor (3) passes through the top plate (2) and is fixedly connected to a connecting rod, a drive rod (4) is slidably connected to the outer wall of the connecting rod, a crushing blade (5) is fixedly connected to the outer wall of the drive rod (4), a positioning component is provided on the crushing box (1), and the positioning component is used to limit the top plate (2) to the top of the crushing box (1); The top plate (2) is provided with a feeding mechanism (6), which includes a connecting ring (61) rotatably connected to the bottom of the top plate (2), a shielding ring (62) rotatably connected to the bottom of the connecting ring (61), a first feeding port (63) opened at the top of the connecting ring (61), a second feeding port (64) opened at the top of the shielding ring (62), and a third feeding port (65) opened at the top of the top plate (2).

2. The food testing sample grinding and pulverizing device according to claim 1, characterized in that: A toggle block (7) is fixedly connected to one side of the outer wall of the connecting ring (61), and the outer wall of the toggle block (7) is provided with anti-slip texture.

3. The food testing sample grinding and pulverizing device according to claim 2, characterized in that: The inner wall of the crushing box (1) is provided with a fitting groove (8), and the bottom of the shielding ring (62) is fixedly connected with a fitting block (9), and the bottom end of the fitting block (9) is inserted into the fitting groove (8).

4. The food testing sample grinding and pulverizing device according to claim 3, characterized in that: The top of the connecting ring (61) is provided with a first sealing ring (10), and a sealing gasket is provided inside the first sealing ring (10).

5. The food testing sample grinding and pulverizing device according to claim 4, characterized in that: The top of the shielding ring (62) is provided with a second sealing ring (11), and a sealing gasket is provided inside the second sealing ring (11).

6. The food testing sample grinding and pulverizing device according to claim 5, characterized in that: The positioning component includes a fixed frame (12) fixedly connected to one side of the crushing box (1), a fixed rod (13) slidably connected to the inner wall of the fixed frame (12), a limit frame (14) slidably connected to the outer wall of the fixed rod (13), and a spring (15) sleeved on the outside of the fixed rod (13).

7. The food testing sample grinding and pulverizing device according to claim 6, characterized in that: An observation port (16) is provided on one side of the outer wall of the crushing box (1), and a transparent block is fixedly connected to the inner side wall of the observation port (16).

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