Temperature-controlled tiered storage food sample holding cabinet

Abstract

The utility model discloses temperature control layering storage food sample leaving cabinet, including sample leaving cabinet body, the lower part of one side of sample leaving cabinet body is installed with temperature controller, printer and weighing drawer, the upper part of one side of sample leaving cabinet body is installed with display screen, one side of sample leaving cabinet body is hinged with door body mechanism. The utility model discloses having disc -shaped layered structure: disc -type storage cabinet with the center of main shaft is divided into three layers, and each layer is divided into four areas by cross -shaped tabletop partition, and three -layer glass door is corresponded, and this design is specially for miniature tabletop scene optimization, such as the compact space of early education system, and each layer area can be accurately aligned with the airlock when rotating, and the operation is convenient and small, and the thickness of partition is less than two centimeters lightweight design further releases storage space, satisfies the demand of quieting simultaneously, avoids the interference daily environment.

Description

Technical Field

[0001] This utility model belongs to the field of food sample retention cabinets, specifically relating to a temperature-controlled, layered food sample retention cabinet. Background Technology

[0002] A food sample retention cabinet is a specialized device used to store food samples. It is mainly used in the field of food safety management. In the event of food poisoning or other incidents, food sample testing can clearly identify which food caused the incident and provide effective evidence for analyzing the causes of sudden food poisoning events.

[0003] Currently, traditional temperature-controlled tiered food sample retention cabinets lack sufficient temperature control accuracy, have poor flexibility in their internal storage mechanisms, making it difficult to meet the diverse needs of different scenarios, and are also difficult to ventilate the interior of the cabinet quickly. Further improvements are needed. Utility Model Content

[0004] To overcome the problems of insufficient temperature control accuracy, poor storage mechanism flexibility, inability to meet the differentiated needs of different scenarios, and difficulty in quickly ventilating the cabinet, a temperature-controlled layered food sample retention cabinet is proposed.

[0005] The technical solution of this utility model is: a temperature-controlled layered food sample retention cabinet, including a sample retention cabinet body; a temperature controller, a printer and a weighing drawer are installed on the lower part of one side of the sample retention cabinet body, a display screen is installed on the upper part of one side of the sample retention cabinet body, and a door mechanism is hinged to one side of the sample retention cabinet body.

[0006] The sample retention cabinet is equipped with an internal ventilation system;

[0007] The sample retention cabinet has an internal retention mechanism.

[0008] A ventilation frame is fixedly connected to one side of the sample retention cabinet body, and a sealing plate is fixedly connected to the inner wall of the ventilation frame. A ventilation slot is opened through the sealing plate. A fixed frame is fixedly connected through the other side of the sample retention cabinet body. A first sealing mechanism is provided in the fixed frame, and a second sealing mechanism and a driving mechanism are provided in the ventilation frame. The output end of the driving mechanism is connected to the driving end of the first sealing mechanism and the second sealing mechanism respectively.

[0009] Furthermore, the ventilation mechanism includes a condenser fan, an evaporator, a condenser, and a compressor.

[0010] Furthermore, the storage mechanism includes a nine-square shelf, slide rails, food storage drawers, handles, and lock bodies; a nine-square shelf is fixed to one inner wall of the sample storage cabinet body, and nine slide rails are opened through one side of the nine-square shelf. Food storage drawers are slidably installed on the inner wall of the slide rails via slide rails. A handle is fixed to one side of the food storage drawer, and nine lock bodies are installed on one side of the nine-square shelf. The lock bodies correspond to the lower end of the food storage drawers, and the lock cylinders of the lock bodies are compatible with the lock grooves opened at the lower end of the food storage drawers.

[0011] Furthermore, the door mechanism includes a sliding door that is compatible with an opening on one side of the sample retention cabinet body.

[0012] Furthermore, the retention mechanism consists of a motor fixed to the lower end of the sample retention cabinet body, a storage cabinet, a desktop partition, a bearing, and a main shaft rotatably mounted on the inner wall of the bearing. The output shaft of the motor passes through the bottom surface of the sample retention cabinet body and is fixed to the bottom end of the main shaft. The side wall of the main shaft is fixed to the inner wall of the storage cabinet. The top surface of the storage cabinet is disc-shaped. The storage cabinet is divided into three layers, and each layer of the storage cabinet is divided into four areas by four desktop partitions. The top surface of the four desktop partitions is cross-shaped, and multiple holes are opened through the side wall of the desktop partitions.

[0013] Furthermore, the thickness of the desktop divider is less than two centimeters.

[0014] Furthermore, the door mechanism includes three glass doors, each corresponding to one of the three-layer tabletop partitions.

[0015] Furthermore, the first sealing mechanism includes multiple rotating rods rotatably mounted on the upper and lower ends of the inner wall of the fixed frame. Gears are fixedly connected to the lower part of the side wall of the rotating rods. Multiple first limiting blocks are fixedly connected to the bottom surface of the inner wall of the fixed frame. A first rack is slidably provided on the inner wall of the first limiting block. The first rack and the rotating rod mesh with each other. A baffle is fixedly connected to the side wall of the rotating rod. When the rotating rod rotates, two adjacent baffles contact each other to form a long plate-shaped structure. The side walls of the two baffles near the two sides of the inner wall of the fixed frame are in contact with the two sides of the inner wall of the fixed frame. A connecting block is fixedly connected to the end of the multiple first racks away from the body of the sample retention cabinet. A straight block is fixedly connected to the end of the connecting block away from the body of the sample retention cabinet.

[0016] Furthermore, the drive mechanism includes a second limiting block fixed to the bottom surface of the inner wall of the ventilation frame, a straight block slidably disposed on the inner wall of the second limiting block, a support fixed to one side of the sample retention cabinet body, a motor fixed to the support, and a gear plate fixed to the upper end of the motor output shaft. One end of the straight block near the sample retention cabinet body is fixed to the connecting block, and one end of the connecting rod is hinged to the upper end of the straight block. The other end of the connecting rod is hinged to the upper edge of the gear plate, and a temperature and humidity sensor is fixed to the upper end of the gear plate.

[0017] Furthermore, the second sealing mechanism includes a third limiting block fixed to the bottom surface of the inner wall of the ventilation frame, a second rack slidably disposed on the inner wall of the third limiting block, a vertical plate fixed to the upper end of the second rack, and a sealing plate and a filter plate fixed to the end of the vertical plate away from the body of the sample retention cabinet. The ends of the sealing plate and the filter plate away from the body of the sample retention cabinet are both in contact with the end of the sealing plate close to the body of the sample retention cabinet. The toothed disc and the second rack mesh with each other. When the toothed disc rotates, the sealing plate and the filter plate move in the horizontal direction to seal the ventilation slot.

[0018] The beneficial effects of this utility model are:

[0019] 1. This solution features a nine-square shelf food storage drawer structure: it adopts a nine-slot partition design, and the food storage drawer in each slot can be pulled out individually via the slide rail. With the help of handles and locks, it can realize the independent storage and retrieval of a single sample. This drawer structure can not only ensure the sealing and security of each sample, but also facilitate quick positioning and individual retrieval.

[0020] 2. This solution features a disc-shaped layered structure: The disc-shaped storage cabinet, centered on the main axis, is divided into three layers. Each layer is divided into four areas by a cross-shaped desktop partition, with three corresponding glass doors. This design is specifically optimized for micro-desktop scenarios, such as the compact space of an early childhood education system. When rotating, each layer can be precisely aligned with the door, making operation convenient and taking up little space. The lightweight design with a partition thickness of less than two centimeters further frees up storage space while meeting the requirement of quiet operation and avoiding interference with the daily environment.

[0021] 3. This temperature-controlled, layered food sample storage cabinet effectively addresses the shortcomings of traditional devices through its structural design and functional linkage. The condenser fan, compressor, evaporator, and condenser in the ventilation mechanism constitute a refrigeration system. Combined with the rotation design of the storage mechanism, this ensures a uniform and stable temperature inside the cabinet, preventing sample deterioration due to temperature differences and improving the reliability of preservation. The refrigeration system can automatically trigger the defrosting program, avoiding the impact of the defrosting process on the environment of the stored food.

[0022] 4. When ventilation is required inside the sample retention cabinet, the motor of the drive mechanism starts, and its output shaft drives the gear plate to rotate. The gear plate directly pulls the straight block of the first sealing mechanism through the connecting rod with the edge hinge. The straight block drives the connecting block and the first rack to move synchronously. The first rack meshes with the gear on the side wall of the rotating rod, causing multiple rotating rods to rotate synchronously. The baffles that were originally in a blocking state rotate and unfold, quickly opening the ventilation path in the fixed frame. At the same time, the gear plate meshes with the second rack of the second sealing mechanism, causing the second rack to slide in the third limit block. The upright plate, sealing plate, and filter plate move with the second rack, gradually disengaging from the sealing plate ventilation groove. During this process, the opening of the channel between the inside of the sample retention cabinet and the fixed frame by the first sealing mechanism and the opening of the ventilation groove in the ventilation frame by the second sealing mechanism are carried out simultaneously. There is no need to control the two mechanisms separately, avoiding the time difference of step-by-step operation and realizing rapid ventilation inside the sample retention cabinet. Attached Figure Description

[0023] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0024] Figure 2 The diagram shown is a three-dimensional structural schematic of the bearing of this utility model;

[0025] Figure 3 The diagram shown is a three-dimensional structural schematic of the third embodiment of this utility model;

[0026] Figure 4 The diagram shown is a three-dimensional structural schematic of the compressor of this utility model;

[0027] Figure 5 The diagram shown is a three-dimensional structural schematic of the first embodiment of this utility model;

[0028] Figure 6 The diagram shown is a three-dimensional structural schematic of the fixing frame of this utility model;

[0029] Figure 7 The diagram shown is a three-dimensional structural schematic of the first sealing mechanism of this utility model;

[0030] Figure 8 The diagram shown is a three-dimensional structural schematic of the second sealing mechanism of this utility model;

[0031] Figure 9 The diagram shown is a cross-sectional three-dimensional structural schematic of the sample retention cabinet body of this utility model.

[0032] The labels in the attached diagram are as follows: 1. Sample retention cabinet body; 2. Thermostat; 3. Printer; 4. Weighing drawer; 5. Display screen; 6. Glass door; 7. Bearing; 8. Storage cabinet; 9. Desktop divider; 10. Condenser fan; 11. Evaporator; 12. Condenser; 13. Compressor; 20. Nine-compartment shelf; 21. Slide rail; 22. Food storage drawer; 23. Handle; 24. Lock body; 25. Sliding door; 26. Motor; 27. Ventilation. 1. Frame; 28. Sealing plate; 29. ​​Ventilation slot; 30. Fixed frame; 31. Rotating rod; 32. Gear; 33. First limiting block; 34. First rack; 35. Baffle; 36. Connecting block; 37. Straight block; 38. Second limiting block; 39. Motor; 40. Gear disc; 41. Third limiting block; 42. Second rack; 43. Vertical plate; 44. Sealing plate; 45. Filter plate; 46. Connecting rod; 47. Temperature and humidity sensor. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Please see Figures 1-9 A temperature-controlled, layered food sample retention cabinet includes a sample retention cabinet body 1; a temperature controller 2, a printer 3, and a weighing drawer 4 are installed on the lower part of one side of the sample retention cabinet body 1; a display screen 5 is installed on the upper part of one side of the sample retention cabinet body 1; and a door mechanism is hinged to one side of the sample retention cabinet body 1.

[0035] The sample retention cabinet body 1 is equipped with an internal ventilation mechanism;

[0036] The sample retention cabinet body 1 is equipped with a retention mechanism inside. A motor 26 is installed at the lower end of the sample retention cabinet body 1. The output shaft of the motor 26 passes through the bottom surface of the sample retention cabinet body 1 and is connected to the lower end of the retention mechanism.

[0037] A ventilation frame 27 is fixedly connected to one side of the sample retention cabinet body 1. A sealing plate 28 is fixedly connected to the inner wall of the ventilation frame 27. A ventilation slot 29 is provided through the sealing plate 28. A fixed frame 30 is fixedly connected through the other side of the sample retention cabinet body 1. A first sealing mechanism is provided in the fixed frame 30. A second sealing mechanism and a driving mechanism are provided in the ventilation frame 27. The output end of the driving mechanism is connected to the driving end of the first sealing mechanism and the second sealing mechanism respectively.

[0038] The ventilation mechanism includes a condenser fan 10, an evaporator 11, a condenser 12, and a compressor 13.

[0039] When the temperature-controlled stratified food sample retention cabinet is in operation, the temperature controller 2 can control and display the temperature inside the sample retention cabinet body 1. When the temperature needs to be adjusted, the temperature controller 2 sends a signal to start the ventilation mechanism. The ventilation mechanism runs to reduce the internal temperature of the sample retention cabinet body 1. The motor 26 at the lower end of the sample retention cabinet body 1 has its output shaft passing through the bottom surface of the sample retention cabinet body 1 and connected to the lower end of the retention mechanism. The motor 26 is controlled by a signal. When powered on, it rotates and drives the retention mechanism through the output shaft. When powered off, it stops rotating to drive the retention mechanism. The ventilation mechanism ensures that the internal temperature of the sample retention cabinet body 1 is stable. The display screen 5 can display relevant information. The weighing drawer 4 can weigh the placed samples. The printer 3 can print relevant data. The door mechanism is hinged to one side of the sample retention cabinet body 1 for convenient sample storage and retrieval.

[0040] Example 1: Please refer to Figure 1 and Figure 5 In this embodiment, the retention mechanism includes a nine-square shelf 20, a slide rail 21, a food storage drawer 22, a handle 23, and a lock body 24. The nine-square shelf 20 is fixedly connected to the inner wall of one side of the sample retention cabinet body 1. Nine slide rails 21 are opened through one side of the nine-square shelf 20. The food storage drawer 22 is slidably installed on the inner wall of the slide rails 21. A handle 23 is fixedly connected to one side of the food storage drawer 22. Nine lock bodies 24 are installed on one side of the nine-square shelf 20. The lock bodies 24 correspond to the lower end of the food storage drawer 22, and the lock cylinder of the lock body 24 is compatible with the lock groove opened at the lower end of the food storage drawer 22. The retention mechanism adopts the combination of the nine-square shelf 20 and the food storage drawer 22. Independent partition storage is achieved through the nine slide rails 21. Each food storage drawer 22 can slide freely along the slide rail. With the handle 23, it is convenient to extract samples individually. The lock body 24 is compatible with the lock groove at the lower end of the food storage drawer 22, which effectively prevents the sample from being accidentally taken or contaminated.

[0041] Please see Figure 1 and Figure 5In this embodiment, the door mechanism includes a sliding door 25, which is adapted to one side opening of the sample retention cabinet body 1. The sliding door 25 is a door panel that can cover the entire opening of the sample retention cabinet body 1. The sliding door 25 of the door mechanism is precisely adapted to the cabinet opening, slides smoothly and has strong sealing, reduces the loss of cold air when opening and closing the door, and ensures the stable temperature inside the cabinet.

[0042] In this embodiment, specifically: the first sealing mechanism includes multiple rotating rods 31 rotatably mounted on the upper and lower ends of the inner wall of the fixed frame 30. A gear 32 is fixedly connected to the lower part of the side wall of the rotating rod 31. Multiple first limiting blocks 33 are fixedly connected to the bottom surface of the inner wall of the fixed frame 30. A first rack 34 is slidably provided on the inner wall of the first limiting block 33. The first rack 34 and the rotating rod 31 mesh with each other. A baffle 35 is fixedly connected to the side wall of the rotating rod 31. When the rotating rod 31 rotates, two adjacent baffles 35 contact each other to form a long plate-shaped structure. The side walls of the two baffles 35 near the two sides of the inner wall of the fixed frame 30 are in contact with the two sides of the inner wall of the fixed frame 30. A connecting block 36 is fixedly connected to the end of the multiple first racks 34 away from the sample retention cabinet body 1. A straight block 37 is fixedly connected to the end of the connecting block 36 away from the sample retention cabinet body 1.

[0043] In this embodiment, specifically: the driving mechanism includes a second limiting block 38 fixed to the bottom surface of the inner wall of the ventilation frame 27, a straight block 37 slidably disposed on the inner wall of the second limiting block 38, a support fixed to one side of the sample retention cabinet body 1, a motor 39 fixed to the support, and a gear plate 40 fixed to the upper end of the output shaft of the motor 39. One end of the straight block 37 near the sample retention cabinet body 1 is fixed to the connecting block 36. One end of the connecting rod 46 is hinged to the upper end of the straight block 37, and the other end of the connecting rod 46 is hinged to the upper edge of the gear plate 40. A temperature and humidity sensor 47 is fixed to the upper end of the gear plate 40.

[0044] In this embodiment, specifically: the second sealing mechanism includes a third limiting block 41 fixed to the bottom surface of the inner wall of the ventilation frame 27, a second rack 42 slidably disposed on the inner wall of the third limiting block 41, a vertical plate 43 fixed to the upper end of the second rack 42, and a sealing plate 44 and a filter plate 45 fixed to the end of the vertical plate 43 away from the sample retention cabinet body 1. The ends of the sealing plate 44 and the filter plate 45 away from the sample retention cabinet body 1 are both in contact with the end of the sealing plate 28 close to the sample retention cabinet body 1. The toothed disc 40 and the second rack 42 mesh with each other. When the toothed disc 40 rotates, the sealing plate 44 and the filter plate 45 move in the horizontal direction to seal the ventilation slot 29.

[0045] When the device is started, the drive mechanism works first as the power source. The motor 39 is fixed to one side of the sample retention cabinet body 1 by the support. Its output shaft drives the gear plate 40 to rotate. The temperature and humidity sensor 47 installed on the upper end of the gear plate 40 monitors the temperature and humidity environment inside or outside the sample retention cabinet in real time. The temperature and humidity sensor 47 is electrically connected to the controller built into the sample retention cabinet body 1. The output shaft of the motor 39 can be turned on by detecting the temperature and humidity sensor 47.

[0046] Driven by the drive mechanism, the first sealing mechanism begins to operate. When the gear plate 40 rotates, the connecting rod 46 hinged at its upper edge moves accordingly. The other end of the connecting rod 46 is hinged to the straight block 37, thereby pulling the straight block 37 to slide horizontally on the inner wall of the second limiting block 38. The end of the straight block 37 away from the sample retention cabinet body 1 is fixedly connected to the connecting block 36. The connecting block 36 then drives the multiple first racks 34 connected to it to move synchronously. The first racks 34 slide on the inner wall of the first limiting block 33. Because the first racks 34 and The gears 32 on the lower side wall of the rotating rod 31 mesh with each other, and the movement of the rack is converted into the rotation of the gears 32, which in turn drives the rotating rod 31 to rotate. The baffles 35 fixed to the side wall of the rotating rod 31 rotate together with the rotating rod 31. When the rotating rod 31 rotates to a specific angle, the two adjacent baffles 35 contact each other to form a long plate structure, and the baffles 35 close to the inner walls of the fixed frame 30 fit against the inner walls of the fixed frame 30, thereby blocking or opening the internal channel of the fixed frame 30, and thus adjusting the ventilation status of the sample retention cabinet.

[0047] Meanwhile, the second sealing mechanism also works in coordination under the drive of the gear plate 40. Since the gear plate 40 and the second rack 42 mesh with each other, the rotation of the gear plate 40 drives the second rack 42 to slide horizontally on the inner wall of the third limit block 41. The vertical plate 43 fixed to the upper end of the second rack 42 moves with the rack, thereby driving the sealing plate 44 and the filter plate 45 on the vertical plate 43 to move horizontally. When the sealing plate 44 moves to fit against the end of the sealing plate 28 near the body 1 of the sample retention cabinet, the sealing plate 44 seals the ventilation slot 29. Conversely, when the filter plate 45 moves to the position of the ventilation slot 29, air can be ventilated through the filter plate 45. When ventilating, the filter plate 45 can filter the air entering the sample retention cabinet to ensure air cleanliness.

[0048] Throughout the process, the environmental data monitored by the temperature and humidity sensor 47 will affect the operation of the motor 39. By controlling the rotation angle and direction of the gear plate 40, the state of the first sealing mechanism and the second sealing mechanism can be precisely adjusted, thereby realizing intelligent control of the ventilation volume and ventilation status of the sample retention cabinet, ensuring that the internal environment of the sample retention cabinet meets the requirements for storing the items.

[0049] In this embodiment: the nine compartments of the nine-square shelf 20 can be used to store samples of different time periods or types. The independent lock body 24 of the food storage drawer 22 enhances storage security. The sliding door 25, in conjunction with the slide rail 21, enables efficient sample management in a small space and is suitable for the daily sample retention needs of small and medium-sized catering establishments.

[0050] Example 2: Please refer to Figure 1 and Figure 3 The difference from Embodiment 1 is that this application provides a technical solution: the door mechanism includes three glass doors 6, which correspond one-to-one with three layers of tabletop partitions 9. Each layer can be opened independently, reducing cross-layer interference and facilitating quick location of samples according to meal times.

[0051] Example 3: Please refer to Figures 1-3 This embodiment provides another storage mechanism: the storage mechanism consists of a motor 26 fixed to the lower end of the sample retention cabinet body 1, a storage cabinet 8, a desktop partition 9, a bearing 7, and a main shaft rotatably mounted on the inner wall of the bearing 7. The output shaft of the motor 26 passes through the bottom surface of the sample retention cabinet body 1 and is fixed to the bottom end of the main shaft. The side wall of the main shaft is fixed to the inner wall of the storage cabinet 8. The top surface of the storage cabinet 8 is disc-shaped. The storage cabinet 8 is divided into three layers, and each layer of the storage cabinet 8 is divided into four areas by four desktop partitions 9. The top surface of the four desktop partitions 9 is cross-shaped, and multiple holes are opened through the side wall of the desktop partitions 9. The storage mechanism drives the disc-shaped storage cabinet 8 to rotate with the main shaft as the core. The bearing 7 ensures the stability of the rotation. The cross-shaped desktop partitions 9 divide each layer into four areas. The lightweight design with a thickness of less than two centimeters releases more storage space, and the openings in the side wall optimize the cold air circulation.

[0052] Please see Figures 1-3 In this embodiment, the thickness of the desktop partition 9 is less than two centimeters. The ultra-thin design of the desktop partition 9 combined with the circular layout reduces material usage and improves space utilization.

[0053] In this embodiment, the disc-type rotation combined with the cross-shaped partition of the desktop divider 9 supports the storage of samples in chronological order (such as breakfast, lunch, dinner, and midnight snack). The cooperation between the bearing 7 and the spindle ensures low-noise operation, making it suitable for noise-sensitive miniature desktop scenarios such as kindergartens. The combination of lightweight design and precise temperature control meets the needs of efficient sample retention in compact environments.

[0054] Working principle: When the temperature-controlled stratified food sample retention cabinet is working, the temperature controller 2 monitors and displays the temperature inside the sample retention cabinet body 1 in real time. When the temperature needs to be adjusted, the temperature controller 2 sends a signal to start the ventilation mechanism. The compressor 13 runs to drive the refrigerant circulation. The refrigerant dissipates heat through the condenser 12 and absorbs heat through the evaporator 11. With the help of the condenser fan 10, forced convection is achieved, which reduces the internal temperature of the sample retention cabinet body 1 and ensures temperature stability.

[0055] The motor 26 at the lower end of the sample retention cabinet body 1 is controlled by a signal. When the power is on, the motor 26 rotates and drives the retention mechanism through the output shaft. When the power is off, the motor stops rotating.

[0056] In Example 1, the output shaft of motor 26 drives the nine-square shelf 20 to remain stationary, or the output shaft of motor 26 does not contact the nine-square shelf 20. The food storage drawer 22 can slide along the slide rail in the slide groove 21 on the nine-square shelf 20. It can be pulled out individually by the handle 23. The lock body 24 is adapted to the lock groove at the lower end of the food storage drawer 22 to achieve sealed storage of samples.

[0057] In Example 3, the output shaft of motor 26 drives the main shaft to rotate, and the main shaft drives the storage cabinet 8 with a disc-shaped top surface to rotate through bearing 7. The cross-shaped desktop partition 9 divides each layer into four areas, and its side wall through holes optimize the cold air circulation.

[0058] During this process, the display screen 5 displays relevant information such as temperature and retention mechanism status in real time, the weighing drawer 4 weighs the placed sample, the printer 3 prints a label containing data such as temperature, weight, and time, and the door mechanism (sliding door 25 or three glass doors 6) is hinged to one side of the sample retention cabinet body 1 to facilitate sample storage and retrieval, and realize the driving of the retention mechanism and intelligent management of the sample.

[0059] When ventilation is required inside the sample retention cabinet body 1, the temperature and humidity sensor 47 installed on the upper end of the gear plate 40 monitors the temperature and humidity environment inside or outside the sample retention cabinet in real time. The temperature and humidity sensor 47 is electrically connected to the controller built into the sample retention cabinet body 1. The output shaft of the motor 39 can be turned on by detecting the temperature and humidity sensor 47.

[0060] Driven by the drive mechanism, the first sealing mechanism begins to operate. When the gear plate 40 rotates, the connecting rod 46 hinged at its upper edge moves accordingly. The other end of the connecting rod 46 is hinged to the straight block 37, thereby pulling the straight block 37 to slide horizontally on the inner wall of the second limiting block 38. The end of the straight block 37 away from the sample retention cabinet body 1 is fixedly connected to the connecting block 36. The connecting block 36 then drives the multiple first racks 34 connected to it to move synchronously. The first racks 34 slide on the inner wall of the first limiting block 33. Because the first racks 34 and The gears 32 on the lower side wall of the rotating rod 31 mesh with each other, and the movement of the rack is converted into the rotation of the gears 32, which in turn drives the rotating rod 31 to rotate. The baffles 35 fixed to the side wall of the rotating rod 31 rotate together with the rotating rod 31. When the rotating rod 31 rotates to a specific angle, the two adjacent baffles 35 contact each other to form a long plate structure, and the baffles 35 close to the inner walls of the fixed frame 30 fit against the inner walls of the fixed frame 30, thereby blocking or opening the internal channel of the fixed frame 30, and thus adjusting the ventilation status of the sample retention cabinet.

[0061] Meanwhile, the second sealing mechanism also works in coordination under the drive of the gear plate 40. Since the gear plate 40 and the second rack 42 mesh with each other, the rotation of the gear plate 40 drives the second rack 42 to slide horizontally on the inner wall of the third limit block 41. The vertical plate 43 fixed to the upper end of the second rack 42 moves with the rack, thereby driving the sealing plate 44 and the filter plate 45 on the vertical plate 43 to move horizontally. When the sealing plate 44 moves to fit against the end of the sealing plate 28 near the body 1 of the sample retention cabinet, the sealing plate 44 seals the ventilation slot 29. Conversely, when the filter plate 45 moves to the position of the ventilation slot 29, air can be ventilated through the filter plate 45. When ventilating, the filter plate 45 can filter the air entering the sample retention cabinet to ensure air cleanliness.

[0062] Throughout the process, the environmental data monitored by the temperature and humidity sensor 47 will affect the operation of the motor 39. By controlling the rotation angle and direction of the gear plate 40, the state of the first sealing mechanism and the second sealing mechanism can be precisely adjusted, thereby realizing intelligent control of the ventilation volume and ventilation status of the sample retention cabinet, ensuring that the internal environment of the sample retention cabinet meets the requirements for storing the items.

Claims

1. A temperature-controlled, layered food sample retention cabinet, comprising a sample retention cabinet body (1), a temperature controller (2), a printer (3), and a weighing drawer (4) installed on the lower part of one side of the sample retention cabinet body (1), and a display screen (5) installed on the upper part of one side of the sample retention cabinet body (1), characterized in that: A door mechanism is hinged to one side of the sample retention cabinet body (1); The sample retention cabinet body (1) is equipped with an air exchange mechanism inside; The sample retention cabinet body (1) is equipped with a retention mechanism inside; A ventilation frame (27) is fixedly connected to one side of the sample retention cabinet body (1). A sealing plate (28) is fixedly connected to the inner wall of the ventilation frame (27). A ventilation slot (29) is opened through the sealing plate (28). A fixed frame (30) is fixedly connected through the one side of the sample retention cabinet body (1). A first sealing mechanism is provided in the fixed frame (30). A second sealing mechanism and a driving mechanism are provided in the ventilation frame (27). The output end of the driving mechanism is connected to the driving end of the first sealing mechanism and the second sealing mechanism, respectively.

2. The temperature-controlled, layered food sample retention cabinet according to claim 1, characterized in that: The ventilation system includes a condenser fan (10), an evaporator (11), a condenser (12), and a compressor (13).

3. The temperature-controlled, layered food sample retention cabinet according to claim 1, characterized in that: The storage mechanism includes a nine-square shelf (20), a slide rail (21), a food storage drawer (22), a handle (23), and a lock body (24). The nine-square shelf (20) is fixed to one inner wall of the main body (1) of the sample storage cabinet. Nine slide rails (21) are opened through one side of the nine-square shelf (20). The food storage drawer (22) is slidably installed on the inner wall of the slide rails (21). A handle (23) is fixed to one side of the food storage drawer (22). Nine lock bodies (24) are installed on one side of the nine-square shelf (20). The lock bodies (24) correspond to the lower end of the food storage drawer (22), and the lock cylinder of the lock body (24) is compatible with the lock groove opened at the lower end of the food storage drawer (22).

4. The temperature-controlled, layered food sample retention cabinet according to claim 3, characterized in that: The door mechanism includes a sliding door (25), which is compatible with the opening on one side of the sample retention cabinet body (1).

5. The temperature-controlled, layered food sample retention cabinet according to claim 1, characterized in that: The retention mechanism consists of a motor (26) fixed to the lower end of the sample retention cabinet body (1), a storage cabinet (8), a desktop partition (9), a bearing (7), and a main shaft rotatably mounted on the inner wall of the bearing (7). The output shaft of the motor (26) passes through the bottom surface of the sample retention cabinet body (1) and is fixed to the bottom end of the main shaft. The side wall of the main shaft is fixed to the inner wall of the storage cabinet (8). The top surface of the storage cabinet (8) is disc-shaped. The storage cabinet (8) is divided into three layers, and each layer of the storage cabinet (8) is divided into four areas by four desktop partitions (9). The top surface of the four desktop partitions (9) is cross-shaped, and multiple holes are opened through the side wall of the desktop partitions (9).

6. The temperature-controlled, layered food sample retention cabinet according to claim 5, characterized in that: The thickness of the desktop divider (9) is less than two centimeters.

7. The temperature-controlled, layered food sample retention cabinet according to claim 5, characterized in that: The door mechanism includes three glass doors (6), each of which corresponds to a separate three-layer tabletop partition (9).

8. The temperature-controlled, layered food sample retention cabinet according to claim 1, characterized in that: The first sealing mechanism includes multiple rotating rods (31) rotatably mounted on the upper and lower ends of the inner wall of the fixed frame (30). A gear (32) is fixedly connected to the lower part of the side wall of the rotating rod (31). Multiple first limiting blocks (33) are fixedly connected to the bottom surface of the inner wall of the fixed frame (30). A first rack (34) is slidably provided on the inner wall of the first limiting block (33). The first rack (34) and the rotating rod (31) mesh with each other. A baffle (35) is fixedly connected to the side wall of the rotating rod (31). When the rotating rod (31) rotates, two adjacent baffles (35) contact each other to form a long plate structure. The side walls of the two baffles (35) close to the inner wall of the fixed frame (30) are in contact with the inner wall of the fixed frame (30). A connecting block (36) is fixedly connected to the end of the multiple first racks (34) away from the body of the sample retention cabinet (1). A straight block (37) is fixedly connected to the end of the connecting block (36) away from the body of the sample retention cabinet (1).

9. The temperature-controlled, layered food sample retention cabinet according to claim 8, characterized in that: The drive mechanism includes a second limiting block (38) fixed to the bottom surface of the inner wall of the ventilation frame (27), a straight block (37) slidably disposed on the inner wall of the second limiting block (38), a support fixed to one side of the sample retention cabinet body (1), a motor (39) fixed to the support, and a gear plate (40) fixed to the upper end of the output shaft of the motor (39). One end of the straight block (37) near the sample retention cabinet body (1) is fixed to the connecting block (36). One end of the connecting rod (46) is hinged to the upper end of the straight block (37), and the other end of the connecting rod (46) is hinged to the upper edge of the gear plate (40). A temperature and humidity sensor (47) is fixed to the upper end of the gear plate (40).

10. The temperature-controlled, layered food sample retention cabinet according to claim 9, characterized in that: The second sealing mechanism includes a third limiting block (41) fixed to the bottom surface of the inner wall of the ventilation frame (27), a second rack (42) slidably disposed on the inner wall of the third limiting block (41), a vertical plate (43) fixed to the upper end of the second rack (42), and a sealing plate (44) and a filter plate (45) fixed to the end of the vertical plate (43) away from the body of the sample retention cabinet (1). The ends of the sealing plate (44) and the filter plate (45) away from the body of the sample retention cabinet (1) are both in contact with the end of the sealing plate (28) close to the body of the sample retention cabinet (1). The toothed disc (40) and the second rack (42) mesh with each other. When the toothed disc (40) rotates, the sealing plate (44) and the filter plate (45) move in the horizontal direction to seal the ventilation slot (29).

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