Decomposing device for food sanitation and safety detection

Abstract

The invention relates to a decomposition device for food sanitation and safety detection. The decomposition device comprises a container, a feeding pipe, a preliminary crushing assembly, a driving part, a rotating disc, a circular ring, a plurality of blades, a first elastic piece and a shifting piece. Turbulent flow is formed in the container through rotation of the blades, a negative pressure area is formed on the upper portion of a strong acid solution, the strong acid solution carries food particles to be discharged from gaps between the blades and then flows upwards to enter an annular space formed by the blades from a circular ring, circular flow is formed, and part of the food particles collide with the surfaces of the blades to be smashed. The rotating blades reversely rotate to compress the first elastic pieces under the blocking action of the stirring pieces, when the blades are separated from the stirring pieces, the first elastic pieces release elastic potential energy to drive the blades to reset, part of food particles can be actively extruded by the blades to be further crushed, the contact area between the food particles and a strong acid solution is increased, crushing and decomposition are conducted at the same time, and the crushing efficiency is improved. Sufficient release of the to-be-detected element is facilitated, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This invention relates to the field of food testing technology, and in particular to a decomposition device for food hygiene and safety testing. Background Technology

[0002] Food safety refers to food that is non-toxic, harmless, meets the necessary nutritional requirements, and does not cause any acute, subacute, or chronic harm to human health. Food safety is a public health issue concerning the impact of toxic or harmful substances in food on human health. It is also an interdisciplinary field that specifically explores ensuring food hygiene and safety during food processing, storage, and sales, reducing disease risks, and preventing food poisoning. Therefore, food safety is extremely important. Purifying the market source is a key aspect of food hygiene and safety. This involves setting up testing instruments and providing testing methods in medium and large supermarkets and farmers' markets to continuously test key quality parameters of relevant foods. Random sampling can be conducted by professional market inspectors or the public, allowing the market to quickly confirm food quality. In this way, substandard products will be difficult to market and will not be allowed to enter the market, thus preventing substandard products from entering the market and ensuring food safety.

[0003] Decomposition (pretreatment) is a crucial step in ensuring the accuracy of test results, primarily used to break down organic matter, release target components, and eliminate interference. Currently, in food hygiene and safety testing, the method for detecting volatile elements such as lead and cadmium involves pulverizing the food to be tested, then adding a strong acid (concentrated sulfuric acid, nitric acid, perchloric acid) and the pulverized food to an acid-resistant container. The strong acid is then used to break down the organic matrix, releasing the target inorganic components while retaining inorganic ions. However, because the food is placed in the acid-resistant container, it is difficult for the food to fully contact the strong acid solution, hindering the complete release of the target elements and affecting the accuracy of the test results. Summary of the Invention

[0004] This invention provides a decomposition device for food hygiene and safety testing, which can solve the problem in the prior art where the food to be tested is placed in an acid-resistant container, making it difficult for the food to fully contact with the strong acid solution, and the elements to be tested to be fully released, thus affecting the accuracy of the test results.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a decomposition device for food hygiene and safety testing, comprising:

[0006] A container, wherein a feed pipe extending into the container is provided at the upper end of the container;

[0007] A preliminary crushing component is connected inside the feed pipe and is used to perform preliminary crushing on the food to be tested.

[0008] A secondary crushing and decomposition assembly includes: a drive unit disposed at the bottom of an annular container; a turntable rotatably connected inside the container and fixedly connected to the output end of the drive unit via a coupling; an annular ring located directly above the turntable; multiple blades rotatably connected between the turntable and the annular ring, with a gap formed between each pair of adjacent blades for the passage of strong acid solution and food particles; a first elastic element disposed between each blade and the annular ring; and a paddle disposed at the lower edge of a feed pipe extending below the annular ring.

[0009] Preferably, each blade has a plurality of first circular protrusions on both sides.

[0010] Preferably, the preliminary crushing component includes: a filter cylinder, which is a cylindrical structure with an open top and a filter screen at the bottom, and the filter cylinder is connected inside the feed pipe; and a crushing plate, wherein a rotating shaft extending into the filter cylinder is provided at the center of the turntable, and the crushing plate is provided on the rotating shaft.

[0011] Preferably, the filter cylinder is vertically and elastically connected to the inside of the feed pipe, and a plurality of second circular protrusions are arranged on the inner side wall of the filter cylinder. A third circular protrusion is provided at the lower edge of the crushing plate. When the crushing plate rotates, the third circular protrusion presses down on each of the second circular protrusions in sequence.

[0012] Preferably, the lower end of the crushing plate is provided with multiple crushing cones.

[0013] Preferably, the crushing plate is provided with crushing blades on its side.

[0014] Preferably, the upper part of the inside of the feed tube is hinged with two opposing sealing plates, and a third elastic element is provided between the lower surface of each sealing plate and the inner wall of the feed tube.

[0015] Preferably, a feeding auxiliary pipe is vertically slidably connected inside the feeding pipe, the feeding auxiliary pipe is located above the sealing plate, and a handrail is provided at the upper edge of the feeding auxiliary pipe.

[0016] Preferably, the container is made of glass, and scale lines are provided on the outer wall of the container.

[0017] Compared to existing technologies, this invention utilizes a container, feed pipe, primary crushing assembly, drive unit, turntable, ring, multiple blades, first elastic element, and paddles in a coordinated configuration. Food particles crushed by the primary crushing assembly fall into the container through the feed pipe. The drive unit rotates the turntable, which in turn rotates the ring and all the blades synchronously. The rotation of the blades creates turbulence within the container, increasing the fluidity of the strong acid solution while simultaneously creating a negative pressure zone above the solution. The strong acid solution, carrying food particles, is discharged through the gaps between the blades and flows upwards, entering the annular space formed by the blades from the ring, thus creating a circulating flow. When food particles are discharged from the gaps between the blades, some of them will collide with the surface of the blades and be crushed. The rotating blades, under the obstruction of the paddle, rotate in the opposite direction and compress the first elastic element. When the blades separate from the paddle, the first elastic element releases elastic potential energy to drive the blades to reset, causing the blades to rotate. When some food particles are discharged from the gaps between the blades, they will be further crushed by the active compression of the blades, which helps to reduce the particle size of the food particles and increase the contact area with the strong acid solution. Crushing and decomposition occur simultaneously, which is conducive to the full release of the elements to be detected and improves the accuracy of the detection results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0019] Figure 2 This is a top view of the secondary crushing and decomposition component of the present invention;

[0020] Figure 3 This is a schematic diagram of the main structure of the feed pipe of the present invention;

[0021] Figure 4 This is a schematic diagram of the main cross-sectional view of the feed pipe of the present invention;

[0022] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 6 This is a top view of the filter cartridge structure of the present invention.

[0024] In the diagram: 1. Container; 2. Drive unit; 3. Turntable; 4. Ring; 5. Blade; 6. First elastic element; 7. Feed pipe; 8. Paddle; 9. First circular protrusion; 10. Filter cylinder; 11. Crushing plate; 12. Second circular protrusion; 13. Third circular protrusion; 14. Second elastic element; 15. Crushing cone; 16. Crushing blade; 17. Sealing plate; 18. Third elastic element; 19. Feed auxiliary pipe; 20. Handrail. Detailed Implementation

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention 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 invention.

[0026] like Figures 1-6 As shown, a decomposition device for food hygiene and safety testing includes:

[0027] Container 1, with a feed pipe 7 extending into the interior of container 1 at the upper end and a discharge pipe with a valve at the bottom of container 1.

[0028] The preliminary crushing component is connected inside the feed pipe 7 and is used to perform preliminary crushing on the food to be tested.

[0029] The secondary crushing and decomposition assembly includes: a drive unit 2, which is a motor and is located at the bottom of the annular container 1; a turntable 3, which is rotatably connected inside the container 1 and is fixedly connected to the output end of the drive unit 2 via a coupling; an annular ring 4, which is located directly above the turntable 3; multiple blades 5, which are rotatably connected between the turntable 3 and the annular ring 4, with a gap formed between each pair of adjacent blades 5 for the passage of strong acid solution and food particles; a first elastic element 6, which is provided between each blade 5 and the annular ring 4; and a paddle 8, which is located at the lower edge of the feed pipe 7, with the lower end of the feed pipe 7 extending below the annular ring 4.

[0030] In practical use, the food, after being crushed by the preliminary crushing component, falls into the container 1 through the feed pipe 7. The drive unit 2 drives the turntable 3 to rotate, which in turn drives the ring 4 and each blade 5 to rotate synchronously. The rotation of the blades 5 creates turbulence in the container 1, increasing the fluidity of the strong acid solution and creating a negative pressure zone above the strong acid solution. The strong acid solution, carrying food particles, is discharged from the gaps between the blades 5 and flows upwards into the annular space formed by the ring 4 and the blades 5, forming a circulating flow. When the food particles are discharged from the gaps between the blades 5, some of the food particles will collide with the surface of the blades 5 and be crushed. The rotating blades 5 are blocked by the paddle 8 and rotate in the opposite direction to compress the first elastic element 6. When the blades 5 are separated from the paddle 8, the first elastic element 6 releases elastic potential energy to drive the blades 5 to reset, so that the blades 5 form a self-rotating effect. When some food particles are discharged from the gaps between the blades 5, they will be further crushed by the active squeezing of the blades 5. Crushing and decomposing are done simultaneously. After decomposition, the particles are discharged from the discharge pipe for testing.

[0031] In order to improve the accuracy of the detection results, preferably, each blade 5 has multiple first circular protrusions 9 on both sides.

[0032] Specifically, by setting the first circular protrusion 9, on the one hand, it is beneficial to increase the surface area of ​​the blade 5, increase the probability of food particles colliding with the blade 5 when passing through the gap of the blade 5, and improve the crushing effect; on the other hand, when the blade 5 is blocked by the paddle 8 and rotates, the first circular protrusion 9 between adjacent blades 5 collide with each other, squeezing and crushing the passing food particles, improving the crushing effect, and thus helping to reduce the particle size of the food particles, increase the contact area with the strong acid solution, and fully release the elements to be detected, thereby improving the accuracy of the detection results.

[0033] To improve the accuracy of the test results, the preliminary crushing assembly preferably includes: a filter cylinder 10, which is a cylindrical structure with an open top and a filter screen at the bottom, and is connected inside the feed pipe 7; and a crushing plate 11, on which a rotating shaft extending into the filter cylinder 10 is provided at the center of the turntable 3, and the crushing plate 11 is provided.

[0034] Specifically, the food entering through the feed pipe 7 will fall onto the filter cylinder 10. The turntable 3 rotates, driving the rotating shaft to rotate. The rotating shaft drives the crushing plate 11 to rotate through the crushing plate 11. The crushing plate 11 will initially crush the food. The crushed food particles will continue to fall into the container 1 through the filter screen at the bottom of the filter cylinder 10. This reduces the particle size of the food when it enters the container 1 and increases the uniformity of the food. This is beneficial to improving the crushing and decomposition effect during secondary crushing and decomposition, thereby improving the accuracy of the test results.

[0035] To improve the accuracy of the test results, preferably, a first guide groove is provided on the inner wall of the feed pipe 7, a first guide block adapted to the first guide groove is provided on the outer wall of the filter cylinder 10, a second elastic element 14 is provided between the first guide block and the inner bottom wall of the first guide groove, the second elastic element 14 is a spring, a plurality of second circular protrusions 12 are provided on the inner wall of the filter cylinder 10, and a third circular protrusion 13 is provided at the lower edge of the crushing plate 11. When the crushing plate 11 rotates, the third circular protrusion 13 presses down on each of the second circular protrusions 12 in sequence.

[0036] Specifically, in the natural state of the second elastic element 14, after the strong acid solution is added, the liquid level is slightly lower than the lower end of the filter cylinder 10. When food is added, it can prevent the food from contacting the strong acid solution and splashing, thus improving the safety of the test. During the rotation of the crushing plate 11, the third circular protrusion 13 will intermittently press down on each of the second circular protrusions 12 in sequence. The filter screen at the bottom of the filter cylinder 10, which is squeezed down, will be immersed in the strong acid solution, so that the food residue on the filter screen will decompose after contact with the strong acid solution, thus preventing the filter screen from being blocked by food residue. When the third circular protrusion 13 separates from the second circular protrusion 12, the filter cylinder 10 will reset under the elastic potential energy of the second elastic element 14, generating a vibration effect, which will cause the food residue to separate from the filter screen, further preventing the filter screen from being blocked by food residue. Secondly, the continuously vibrating filter cylinder 10 will drive the food to vibrate up and down, so that the food can fully contact the crushing plate 11, improving the crushing effect.

[0037] To improve the accuracy of the test results, preferably, the lower end of the crushing plate 11 is provided with a plurality of crushing cones 15.

[0038] Specifically, during the up-and-down vibration of the filter cylinder 10, it is beneficial to generate relative vertical movement between the food and the crushing cone 15, so that the crushing cone 15 can squeeze and crush the food, thereby improving the crushing effect.

[0039] To improve the accuracy of the test results, preferably, a crushing blade 16 is provided on the side of the crushing plate 11.

[0040] Specifically, the design of the crushing blade 16 helps to increase the cutting force between the blade and the food, thereby improving the crushing effect.

[0041] In order to improve the safety of food testing, preferably, two opposing sealing plates 17 are hinged to the upper part of the inside of the feed tube 7. A third elastic element 18 is provided between the lower surface of each sealing plate 17 and the inner wall of the feed tube 7. The third elastic element 18 is a spring or a stainless steel sheet.

[0042] Specifically, when food is added to container 1 through feed pipe 7, the food will open the two sealing plates 17 under the action of gravity or external force. After the food falls, the two sealing plates 17 will reset under the restoring elastic force of the third elastic element 18, sealing feed pipe 7 to prevent harmful gases from escaping during decomposition and improve the safety of detection.

[0043] In order to improve the safety of food testing, preferably, a second guide groove is provided on the inner wall of the feed pipe 7, and a second guide block adapted to the second guide groove is provided on the outer wall of the feed auxiliary pipe 19. The feed auxiliary pipe 19 is located above the sealing plate 17, and a handrail 20 is provided at the upper edge of the feed auxiliary pipe 19.

[0044] Specifically, when adding strong acid to container 1 through feed pipe 7, the feed auxiliary pipe 19 is pressed down by the handle 20. The lower end of feed auxiliary pipe 19 is squeezed down to open the two sealing plates 17. Strong acid is then added to container 1 through feed auxiliary pipe 19. This avoids the inability to add strong acid due to the obstruction of the two sealing plates 17. At the same time, it helps to avoid the testing personnel coming into contact with the strong acid solution, reducing safety risks and improving the safety of food testing.

[0045] To facilitate control over the amount of strong acid solution added, container 1 is preferably made of glass, and scale lines are provided on the outer wall of container 1.

[0046] Specifically, glass has strong acid resistance, which helps prevent corrosion by strong acids. At the same time, it is transparent, making it easy to observe the amount of strong acid solution added to container 1 through the scale lines on the outside, and also making it easy to observe the decomposition effect of food in real time.

[0047] Compared to existing technologies, this invention utilizes the coordinated arrangement of a container 1, a feed pipe 7, a preliminary crushing assembly, a drive unit 2, a turntable 3, a ring 4, multiple blades 5, a first elastic element 6, and a paddle 8. Food particles crushed by the preliminary crushing assembly fall into the container 1 through the feed pipe 7. The drive unit 2 drives the turntable 3 to rotate, which in turn drives the ring 4 and each blade 5 to rotate synchronously. The rotation of the blades 5 creates turbulence within the container 1, increasing the fluidity of the strong acid solution while simultaneously creating a negative pressure zone above the solution. The strong acid solution, carrying food particles, is discharged through the gaps between the blades 5 and flows upwards, entering the annular space formed by the blades 5 from the ring 4, thus forming... As the food particles circulate and are discharged from the gaps between the blades 5, some of them collide with the surface of the blades 5 and are crushed. The rotating blades 5 are also compressed by the blocking action of the paddle 8. When the blades 5 are separated from the paddle 8, the first elastic element 6 releases its elastic potential energy and drives the blades 5 to reset, causing the blades 5 to rotate. When some food particles are discharged from the gaps between the blades 5, they are further crushed by the active compression of the blades 5, which helps to reduce the particle size of the food particles and increase the contact area with the strong acid solution. Crushing and decomposition occur simultaneously, which is conducive to the full release of the elements to be detected and improves the accuracy of the detection results.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A decomposition device for food hygiene and safety testing, characterized in that, include: Container (1), the upper end of which is provided with a feed pipe (7) extending into the interior of the container (1); A preliminary crushing component is connected inside the feed pipe (7) and is used to perform preliminary crushing on the food to be tested. A secondary crushing and decomposition assembly includes: a drive unit (2) disposed at the bottom of an annular container (1); a turntable (3) rotatably connected to the inside of the container (1), the turntable (3) being fixedly connected to the output end of the drive unit (2) via a coupling; an annular ring (4) located directly above the turntable (3); multiple blades (5) rotatably connected between the turntable (3) and the annular ring (4), with a gap formed between each pair of adjacent blades (5) for the passage of strong acid solution and food particles; a first elastic element (6) disposed between each blade (5) and the annular ring (4); and a paddle (8) disposed at the lower edge of a feed pipe (7), the lower end of which extends below the annular ring (4).

2. The decomposition device for food hygiene and safety testing according to claim 1, characterized in that: Each blade (5) has a plurality of first circular protrusions (9) on both sides.

3. The decomposition device for food hygiene and safety testing according to claim 1, characterized in that: The preliminary crushing assembly includes: a filter cylinder (10), which is a cylindrical structure with an open top and a filter screen at the bottom, and the filter cylinder (10) is connected inside the feed pipe (7); and a crushing plate (11), which is a rotating shaft extending into the filter cylinder (10) at the center of the turntable (3), and the crushing plate (11) is mounted on the rotating shaft.

4. The decomposition device for food hygiene and safety testing according to claim 3, characterized in that: The filter cylinder (10) is vertically and elastically connected to the inside of the feed pipe (7). Multiple second circular protrusions (12) are arranged on the inner side wall of the filter cylinder (10). A third circular protrusion (13) is provided at the lower edge of the crushing plate (11). When the crushing plate (11) rotates, the third circular protrusion (13) presses down on each of the second circular protrusions (12) in sequence.

5. The decomposition device for food hygiene and safety testing according to claim 3, characterized in that: The lower end of the crushing plate (11) is provided with a plurality of crushing cones (15).

6. The decomposition device for food hygiene and safety testing according to claim 3, characterized in that: The side of the crushing plate (11) is provided with a crushing blade (16).

7. The decomposition device for food hygiene and safety testing according to claim 1, characterized in that: The upper part of the inside of the feed pipe (7) is hinged with two opposing sealing plates (17), and a third elastic element (18) is provided between the lower surface of each sealing plate (17) and the inner wall of the feed pipe (7).

8. The decomposition device for food hygiene and safety testing according to claim 7, characterized in that: The feed tube (7) is vertically slidably connected to the feed auxiliary tube (19), which is located above the sealing plate (17). A handrail (20) is provided at the upper edge of the feed auxiliary tube (19).

9. The decomposition device for food hygiene and safety testing according to claim 1, characterized in that: The container (1) is made of glass, and scale lines are provided on the outer wall of the container (1).

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