Food sampling and storage device for food safety detection

Abstract

This invention discloses a food sampling and storage device for food safety testing, comprising a refrigeration mechanism for cooling the entire food sample storage area and a circulation mechanism for accelerating airflow in the food sample storage area, wherein the refrigeration mechanism is located above the circulation mechanism. This invention utilizes the bending of a bimetallic strip upon heating to slow the descent speed of the support frame within the limiting cylinder. Cooling air flowing from the limiting cylinder then cools the food in the sampling tube, preventing the hot food placed in the storage area from affecting the storage time of food in surrounding sampling tubes. Cooling water within a cooling hood and partition is used to cool the air flowing within the heat exchange tube. The cooled air is then fed into a rotating frame, further cooling the sampling tubes in the multiple limiting cylinders on the rotating frame.

Description

Technical Field

[0001] This invention relates to the field of food safety testing, and in particular to a food sampling and storage device for food 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. According to Beno's definition of food safety, food safety is "a public health issue concerning the impact of toxic or harmful substances in food on human health." Food safety is also an interdisciplinary field that specifically explores ensuring food hygiene and safety during food processing, storage, and sales, reducing the risk of disease, and preventing food poisoning. Therefore, food safety is very important.

[0003] For some large canteens, freshly prepared food needs to be refrigerated and preserved for food safety testing. This ensures better preservation of the food and does not affect the accuracy of the overall food testing. However, the overall temperature is generally high when food is sampled. Therefore, placing food samples at high temperatures into the storage device may affect other samples in the storage device, thereby shortening the storage time of other samples and affecting their test results. Summary of the Invention

[0004] The purpose of this invention is to provide a food sampling and storage device for food safety testing in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A food sampling and storage device for food safety testing includes a refrigeration mechanism for cooling the entire food sample storage area, a circulation mechanism for accelerating the airflow in the food sample storage area, the refrigeration mechanism being located above the circulation mechanism, and also includes a cooling mechanism for rapidly cooling the airflow in the food sample storage area and a storage mechanism for separating and storing the food samples.

[0007] The storage mechanism includes a rotating frame, a limiting cylinder, a support frame, and a spring. The limiting cylinder is arranged in a ring on the rotating frame. The support frame is slidably connected inside the limiting cylinder. The spring is fixed at the bottom of the support frame and located inside the limiting cylinder. Heat-bent bimetallic strips are arranged in a ring on the outside of the support frame.

[0008] The cooling mechanism includes a cooling cover, a heat exchange tube, a heat-conducting plate, and a partition. The cooling cover is installed on the storage mechanism. The partition is fixed inside the cooling cover near the storage mechanism. The heat exchange tube passes through the cooling cover and the partition and communicates with the upper end of the rotating frame. The heat-conducting plate is welded to the outside of the heat exchange tube and is located between the cooling cover and the partition.

[0009] Preferably, the storage mechanism further includes a storage box, a base, and a rotary motor. The storage box is installed on top of the base, the rotary frame is rotatably connected inside the storage box, the rotary motor is located below the rotary frame, and the lower end of the rotary frame meshes with the rotating part of the rotary motor via gears.

[0010] Preferably, the storage box is welded with a support plate at the location of the rotating motor, the rotating frame has a hexagonal partition plate fixed inside, and air vents are provided at both the top and bottom ends of the rotating frame.

[0011] Preferably, the refrigeration mechanism includes a refrigeration unit, a refrigeration pipe, and a heat absorption coil. The refrigeration unit is fixed to the rear side of the storage box, the heat absorption coil is located inside the cooling cover, and the cooling cover contains cooling water for heat exchange. The refrigeration unit and the heat absorption coil are connected through the refrigeration pipe.

[0012] Preferably, the circulation mechanism includes a circulation duct, a circulation fan, and an air supply box. The upper end of the circulation duct is connected to the end of the heat exchange tube. The circulation fan is installed at the lower end of the circulation duct and located inside the storage box. The air supply box is installed on one side of the circulation fan.

[0013] Preferably, one end of the air supply box is provided with a guide pipe, and the guide pipe of the air supply box is connected to the air guide hole at the lower end of the rotating frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The bimetallic strip bends when heated to slow down the descent of the support frame inside the limiting cylinder. Then, the cooling air flowing out from the limiting cylinder cools down the food in the sampling tube, thereby preventing the hot food that has just been placed in the storage area from affecting the storage time of the food in the surrounding sampling tubes.

[0016] 2. Cooling water in the cooling hood and partition is used to cool the air flowing in the heat exchange tube. The cooled air is then sent into the rotating frame to cool the sampling tubes of multiple limiting cylinders on the rotating frame. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a food sampling and storage device for food safety testing according to the present invention;

[0019] Figure 2 This is a cross-sectional view of a food sampling and storage device for food safety testing according to the present invention;

[0020] Figure 3 This is a partial part drawing of the refrigeration mechanism of a food sampling and storage device for food safety testing according to the present invention;

[0021] Figure 4 This is a partial cross-sectional view of the cooling mechanism of a food sampling and storage device for food safety testing according to the present invention;

[0022] Figure 5 This is a partial part drawing of the rotating frame of a food sampling and storage device for food safety testing according to the present invention;

[0023] Figure 6 This is a partial cross-sectional view of the rotating frame of a food sampling and storage device for food safety testing according to the present invention;

[0024] Figure 7 This is a partial part drawing of the limiting cylinder of the food sampling and storage device for food safety testing according to the present invention;

[0025] Figure 8 This is a partial part drawing of the support frame of a food sampling and storage device for food safety testing according to the present invention.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Cooling mechanism; 2. Storage mechanism; 3. Refrigeration mechanism; 4. Circulation mechanism; 11. Cooling cover; 12. Heat exchange tube; 13. Heat-conducting plate; 14. Partition; 21. Storage box; 22. Base; 23. Rotating frame; 24. Limiting cylinder; 25. Support frame; 26. Spring; 27. Rotary motor; 31. Refrigeration unit; 32. Refrigeration pipe; 33. Heat absorption coil; 41. Circulating air duct; 42. Circulating fan; 43. Air supply box. Detailed Implementation

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and for 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-8 As shown, a food sampling and storage device for food safety testing includes a refrigeration mechanism 3 for cooling the entire food sample storage area, a circulation mechanism 4 for accelerating the airflow in the food sample storage area, the refrigeration mechanism 3 being located above the circulation mechanism 4, and also includes a cooling mechanism 1 for rapidly cooling the airflow in the food sample storage area and a storage mechanism 2 for separating and storing the food samples.

[0032] In this embodiment: the storage mechanism 2 includes a storage box 21, a base 22, a rotating frame 23, a limiting cylinder 24, a support frame 25, a spring 26, and a rotary motor 27. The storage box 21 is mounted on top of the base 22. The rotating frame 23 is rotatably connected to the inside of the storage box 21. Heat-bent bimetallic sheets are distributed in a ring on the outer side of the support frame 25. The limiting cylinder 24 is distributed in a ring on the rotating frame 23, and the support frame 25 is slidably connected to the inside of the limiting cylinder 24. The spring 26 is fixed to the bottom of the support frame 25 and located inside the limiting cylinder 24. The rotary motor 27 is located below the rotating frame 23. The lower end of the rotating frame 23 meshes with the rotating part of the rotary motor 27 via gears. A support is welded to the storage box 21 at the location of the rotary motor 27. The rotating frame 23 has a hexagonal partition plate fixed inside, and air vents are provided at both the top and bottom ends of the rotating frame 23. The rotating frame 23 inside the storage box 21 is used to support and fix multiple limiting cylinders 24. At the same time, the sampling tube containing the food sample is placed into the support frame 25. The temperature of the food sample heats the support frame 25, causing the bimetallic strip on the outside of the support frame 25 to bend and press against the inside of the limiting cylinder 24, thereby slowing down the descent speed of the support frame 25 in the limiting cylinder 24. Then, during the descent of the support frame 25, the cooling air flowing inside the rotating frame 23 cools down the sampling tube of the food sample, thus preventing the storage of food that is too hot from affecting the storage of other items around it.

[0033] In this embodiment: the cooling mechanism 1 includes a cooling cover 11, a heat exchange tube 12, a heat-conducting plate 13, and a partition 14. The cooling cover 11 is installed on the storage mechanism 2. The partition 14 is fixed inside the cooling cover 11 near the storage mechanism 2. The heat exchange tube 12 passes through the cooling cover 11 and the partition 14 and is connected to the upper end of the rotating frame 23. The heat-conducting plate 13 is welded to the outside of the heat exchange tube 12 and is located between the cooling cover 11 and the partition 14. Cooled air is introduced into the rotating frame 23 by using the heat exchange tube 12 that passes through the cooling cover 11 and the partition 14. The temperature of the air flowing in the heat exchange tube 12 is accelerated by the heat-conducting plate 13, thereby extending the storage time of the food sample in the rotating frame 23.

[0034] In this embodiment: the refrigeration mechanism 3 includes a refrigeration unit 31, a refrigeration pipe 32, and a heat absorption coil 33. The refrigeration unit 31 is fixed to the rear side of the storage box 21. The heat absorption coil 33 is located inside the cooling cover 11, and the cooling cover 11 contains cooling water for heat exchange. The refrigeration unit 31 and the heat absorption coil 33 are connected through the refrigeration pipe 32. The refrigeration unit 31 uses the coolant to flow into the heat absorption coil 33 through the refrigeration pipe 32. The heat absorption coil 33 is used to cool the cooling water in the cooling cover 11, and then the cooling water is used to cool the heat exchange pipe 12.

[0035] In this embodiment: the circulation mechanism 4 includes a circulation duct 41, a circulation fan 42, and an air supply box 43. The upper end of the circulation duct 41 is connected to the end of the heat exchange tube 12. The circulation fan 42 is installed at the lower end of the circulation duct 41 and is located inside the storage box 21. The air supply box 43 is installed on one side of the circulation fan 42. One end of the air supply box 43 is provided with a guide pipe, and the guide pipe of the air supply box 43 is connected to the air guide hole at the lower end of the rotating frame 23. The circulation fan 42 blows the air in the air supply box 43 into the circulation duct 41, and the air is sent into the heat exchange tube 12 through the circulation duct 41. Then, the air inside the rotating frame 23 is sucked away by the guide pipe of the air supply box 43.

[0036] Working principle: In operation, the refrigeration unit 31 first sends refrigerant through the refrigeration pipe 32 into the heat absorption coil 33, which then cools the cooling water in the cooling shroud 11. Simultaneously, the circulating fan 42 starts, blowing air from the air supply box 43 into the circulating air duct 41. The air is then sent into the heat exchange tube 12 through the circulating air duct 41. As the air passes through the heat exchange tube 12 between the cooling shroud 11 and the partition 14, the cooling water is cooled by the heat-conducting fins 13. The air flowing inside the heat exchange tube 12 is cooled, and then the cooled air enters the air guide hole at the upper end of the rotating frame 23. The air inside the rotating frame 23 enters the air supply box 43 through the air guide hole at its lower end, thus completing the cooling cycle of the entire storage area. The flow direction of the cooling air in the rotating frame 23 is that the upper part flows from the air guide hole at the center to the outside, while the lower part flows from the outside to the air guide hole at the center. During this process, the limiting cylinder 24 inserted on the rotating frame 23 can be evenly distributed. Uniform cooling; furthermore, when a new food sample needs to be placed, the rotating part of the rotary motor 27 drives the rotating frame 23 to rotate 60 degrees through gear transmission, thereby opening the opening on the front side of the storage box 21. Then, the sampling tube containing the sample is inserted into the corresponding limiting cylinder 24, and the support frame 25 is attached to the outside of the sampling tube. The spring 26 is compressed due to the gravity of the sampling tube. Subsequently, due to the relatively high temperature of the food inside the sampling tube, the support frame 25 begins to heat up, causing the bimetallic strip on its outer side to bend. After the end bends, it presses against the limiting cylinder 24 to increase the friction force of the falling support frame 25. Then the descent speed of the sampling tube and the support frame 25 decreases. At this time, the cooling air in the rotating frame 23 will be blown out from the outer wall of the falling sampling tube through the limiting cylinder 24. During this process, the sampling tube is cooled down. When the temperature of the sampling tube drops to a suitable temperature, the bimetallic strip on the outside of the support frame 25 no longer bends. Then the support frame 25 falls into the bottom side of the limiting cylinder 24, thus preventing the sampling tube temperature from being too high and affecting the storage time of the surrounding samples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A food sampling and storing device for food safety inspection, comprising a refrigeration mechanism (3) for refrigerating the whole food sample storing position, a circulating mechanism (4) for accelerating the air flow of the food sample storing position, and the refrigeration mechanism (3) is located above the circulating mechanism (4), characterized in that: It also includes a cooling mechanism (1) for rapidly cooling the airflow at the food sample storage location and a storage mechanism (2) for separating and storing food samples; The storage mechanism (2) includes a rotating frame (23), a limiting cylinder (24), a support frame (25), and a spring (26). The limiting cylinder (24) is arranged in a ring on the rotating frame (23). The support frame (25) is slidably connected inside the limiting cylinder (24). The spring (26) is fixed at the bottom of the support frame (25) and located inside the limiting cylinder (24). The support frame (25) has heat-bent bimetallic sheets arranged in a ring on the outside. The cooling mechanism (1) includes a cooling cover (11), a heat exchange tube (12), a heat-conducting plate (13), and a partition (14). The cooling cover (11) is installed on the storage mechanism (2). The partition (14) is fixed inside the cooling cover (11) near the storage mechanism (2). The heat exchange tube (12) passes through the cooling cover (11) and the partition (14) and is connected to the upper end of the rotating frame (23). The heat-conducting plate (13) is welded to the outside of the heat exchange tube (12) and is located between the cooling cover (11) and the partition (14).

2. The food sampling and storing device for food safety detection according to claim 1, characterized in that: The storage mechanism (2) also includes a storage box (21), a base (22), and a rotary motor (27). The storage box (21) is installed on the top of the base (22). The rotating frame (23) is rotatably connected inside the storage box (21). The rotary motor (27) is located below the rotating frame (23). The lower end of the rotating frame (23) meshes with the rotating part of the rotary motor (27) through gears.

3. The food sampling and storage device for food safety testing according to claim 2, characterized in that: The storage box (21) is welded with a support plate at the position of the rotary motor (27), and a hexagonal partition plate is fixed inside the rotating frame (23), and air guide holes are opened at both the upper and lower ends of the rotating frame (23).

4. The food sampling and storage device for food safety testing according to claim 2, characterized in that: The refrigeration mechanism (3) includes a refrigeration unit (31), a refrigeration pipe (32), and a heat absorption coil (33). The refrigeration unit (31) is fixed to the rear side of the storage box (21). The heat absorption coil (33) is located inside the cooling cover (11), and the cooling cover (11) contains cooling water for heat exchange. The refrigeration unit (31) and the heat absorption coil (33) are connected through the refrigeration pipe (32).

5. A food sampling and storage device for food safety testing according to claim 3, characterized in that: The circulation mechanism (4) includes a circulation duct (41), a circulation fan (42), and an air supply box (43). The upper end of the circulation duct (41) is connected to the end of the heat exchange tube (12). The circulation fan (42) is installed at the lower end of the circulation duct (41) and located inside the storage box (21). The air supply box (43) is installed on one side of the circulation fan (42).

6. A food sampling and storage device for food safety testing according to claim 5, characterized in that: One end of the air supply box (43) is provided with a guide pipe, and the guide pipe of the air supply box (43) is connected to the air guide hole at the lower end of the rotating frame (23).

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