Food state monitoring device for fruit storage
By integrating weighing, temperature, humidity, and gas sensors into the fruit storage device, and combining them with silica gel desiccant, the shortcomings of existing fruit storage monitoring technologies have been overcome. This enables real-time, precise monitoring of fruit conditions and personalized storage, extending the shelf life of fruits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI XINGUIHANG FOOD CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-01
AI Technical Summary
Existing fruit storage monitoring devices are insufficient in terms of data collection diversity, accuracy, and comprehensive analysis capabilities, making it impossible to achieve real-time and comprehensive monitoring of fruit conditions. Furthermore, traditional methods are inefficient, time-consuming, and labor-intensive.
A food condition monitoring device for fruit storage was designed, which includes a weighing sensor, a temperature and humidity sensor and a gas sensor. Multiple chambers are separated by a support plate and a ventilation plate. Combined with silica gel desiccant to absorb moisture, it can realize real-time monitoring and personalized storage environment control for different fruits.
It enables real-time and precise monitoring of fruit condition, improves the fruit's storage time and adaptability to storage environment, and reduces the risk of fruit spoilage.
Smart Images

Figure CN224184949U_ABST
Abstract
Description
A food condition monitoring device for fruit storage Technical Field
[0001] This utility model relates to the field of fruit storage technology, and more specifically, to a food condition monitoring device for fruit storage. Background Technology
[0002] Fruits are an essential food in people's lives and come in many varieties. To prevent spoilage and ensure the taste and quality of fruits, fruits such as apples and bananas usually need to be stored in cold storage after harvesting to achieve the purpose of preservation. In the modern fruit supply chain, long-term storage and preservation of fruits are crucial for reducing losses and ensuring market supply. During the storage process, the freshness, moisture content, temperature, humidity and other state parameters of fruits will change over time, and these parameters directly affect the quality and shelf life of the fruits.
[0003] Currently, traditional fruit storage monitoring methods mainly rely on manual periodic sampling or simple temperature and humidity recorders. Manual sampling is not only inefficient and time-consuming, but also difficult to achieve real-time and comprehensive monitoring of the fruit's condition. Simple temperature and humidity recorders have limited functions, only recording environmental parameters and failing to accurately reflect key status information such as the fruit's freshness and moisture loss. With the development of IoT technology, although some intelligent monitoring devices have emerged, existing devices still fall short in terms of the diversity and accuracy of data collection and the ability to comprehensively analyze the fruit's condition, failing to meet the needs of refined and intelligent monitoring during fruit storage. Summary of the Invention
[0004] The main objective of this invention is to provide a food condition monitoring device for fruit storage, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A food condition monitoring device for fruit storage includes a shelf, a fixed base fixedly installed at the bottom of the shelf, a ventilation plate fixedly installed inside the shelf, and multiple support plates fixedly installed between the shelf and the ventilation plate.
[0007] The support plate includes a placement frame, a weighing sensor is fixedly installed on the bottom surface inside the placement frame, a placement plate is fixedly installed on the top of the weighing sensor, and a support mesh plate is snapped onto the top of the placement frame.
[0008] Preferably, the placement rack includes a fixed box, both sides of which are hinged with switch doors, a monitoring panel is provided on the side of the switch doors, and multiple air vents are provided on both sides of the fixed box.
[0009] Preferably, the placement frame is fixedly installed between the fixed box and the ventilation plate, and the ventilation plate divides the inside of the fixed box into multiple cavities. The air outlet is located on the side of the cavity, and temperature and humidity sensors and gas sensors are installed inside the multiple cavities of the fixed box.
[0010] Preferably, the fixed base includes a base box fixedly installed at the bottom of the fixed box. The base box has air inlet slots on both sides and a ventilation slot on the top. Fixed plates are fixedly installed on both sides inside the base box. The fixed plates are located on both sides of the ventilation slots. A blower is fixedly installed on the side of the fixed plate.
[0011] Preferably, the ventilation plate includes a fixed air box, which is fixedly installed inside a fixed box. Multiple partitions are fixedly installed inside the fixed air box. The bottom of each partition is connected to a ventilation groove. A valve motor is fixedly installed on the side of each partition. A ventilation valve is fixedly installed at the output end of each valve motor. The ventilation valve is rotatably installed inside the partition. Multiple air outlets are provided on both sides of the fixed air box, and the air outlets are located on the side of the cavity of the fixed box.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. By placing silica gel desiccant on the top of the placement plate, the moisture released by the fruit inside the fixed box cavity is absorbed, keeping the fruit dry and extending its storage time. The absorbed moisture is detected by a weighing sensor. When the silica gel desiccant absorbs too much moisture, it can be indirectly determined that the fruit has deteriorated and thus the spoilage status of the fruit in that area can be judged.
[0014] 2. The interior of the fixed box is divided into multiple cavities by the support plate and ventilation plate. Each cavity of the fixed box is equipped with a temperature and humidity sensor and a gas sensor. Different fruits can be placed inside the cavities to monitor different types of fruits, thereby improving the practicality of the device.
[0015] 3. The temperature and humidity sensors and gas sensors monitor the fruit inside the corresponding cavities. The gas sensors monitor the gases emitted by the fruit to determine the degree of spoilage. Real-time monitoring of the fruit allows for quick understanding of its storage condition and helps prevent spoilage.
[0016] 4. By setting up a fixed base and ventilation plate, and controlling the corresponding ventilation valve to close according to the corresponding fruit and its storage habits, air cannot flow into the corresponding fixed air box. The corresponding cavity of the fixed box will not have air circulation, thereby realizing the storage of different types of fruit and providing different storage environments according to the type, thus improving the performance of the device. Attached Figure Description
[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 is a schematic diagram of the placement rack structure of this utility model;
[0019] Figure 3 is a schematic diagram of the support plate structure of this utility model;
[0020] Figure 4 is a schematic diagram of the fixed base structure of this utility model;
[0021] Figure 5 is a schematic diagram of the ventilation plate structure of this utility model.
[0022] The attached diagram is labeled as follows: 1. Placement rack; 2. Ventilation plate; 3. Fixed base; 4. Support plate; 11. Fixed box; 12. Opening / closing door; 13. Monitoring panel; 14. Temperature and humidity sensor; 15. Gas sensor; 16. Air outlet; 21. Fixed air box; 22. Divider plate; 23. Valve motor; 24. Ventilation valve; 25. Air outlet; 31. Base box; 32. Fixed plate; 33. Ventilation slot; 34. Blower; 35. Air inlet slot; 41. Placement frame; 42. Weighing sensor; 43. Placement plate; 44. Support mesh plate. Detailed Implementation
[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0024] As shown in Figures 1 to 3, an embodiment of the present invention provides a food condition monitoring device for fruit storage, including a placement rack 1, a ventilation plate 2 and a fixed base 3. The fixed base 3 is fixedly installed at the bottom of the placement rack 1, the ventilation plate 2 is fixedly installed inside the placement rack 1, and a plurality of support plates 4 are fixedly installed between the placement rack 1 and the ventilation plate 2.
[0025] As shown in Figure 3, the support plate 4 includes a placement frame 41, a weighing sensor 42 and a placement plate 43. The weighing sensor 42 is fixedly installed on the bottom surface inside the placement frame 41, and the top of the weighing sensor 42 is fixedly installed on the placement plate 43. A support mesh plate 44 is snapped onto the top of the placement frame 41.
[0026] By placing silica gel desiccant on top of the placement plate 43, the moisture discharged by the fruit inside the cavity of the fixed box 11 is absorbed, keeping the fruit dry and extending its storage time. The absorbed moisture is detected by the weighing sensor 42. When the silica gel desiccant absorbs too much moisture, it can be indirectly determined that the fruit has deteriorated and thus the spoilage status of the fruit in that area can be judged.
[0027] As shown in Figure 2, the placement rack 1 includes a fixed box 11, and both sides of the fixed box 11 are hinged with a switch door 12. A monitoring panel 13 is provided on the side of the switch door 12, and multiple air vents 16 are provided on both sides of the fixed box 11.
[0028] The placement frame 41 is fixedly installed between the fixed box 11 and the ventilation plate 2, and the ventilation plate 2 divides the inside of the fixed box 11 into multiple cavities. The air outlet 16 is located on the side of the cavity. Temperature and humidity sensors 14 and gas sensors 15 are installed inside the multiple cavities of the fixed box 11. The temperature and humidity sensors 14 monitor the temperature and humidity inside the corresponding cavity to determine whether there is a risk of spoilage due to abnormal temperature and humidity. The gas sensors 15 monitor the gas emitted by the fruit inside the corresponding cavity and detect the release of ethylene ripening hormone or volatile organic compounds such as ethanol and aldehydes. The concentration of these substances may rise abnormally when the fruit spoils.
[0029] The support plate 4 and ventilation plate 2 divide the interior of the fixed box 11 into multiple cavities. Each cavity of the fixed box 11 is equipped with a temperature and humidity sensor 14 and a gas sensor 15. Different fruits can be placed inside the cavities to monitor different types of fruits and improve the practicality of the device.
[0030] As shown in Figure 4, the fixed base 3 includes a base box 31 fixedly installed at the bottom of the fixed box 11. Air inlet slots 35 are provided on both sides of the base box 31, and ventilation slots 33 are provided on the top of the base box 31. Fixing plates 32 are fixedly installed on both sides inside the base box 31. The two fixing plates 32 are located on both sides of the ventilation slots 33 respectively. A blower 34 is fixedly installed on the side of the fixing plate 32.
[0031] As shown in Figure 5, the ventilation plate 2 includes a fixed air box 21, which is fixedly installed inside the fixed box 11. Multiple partition plates 22 are fixedly installed inside the fixed air box 21. The bottom of the partition plates 22 is connected to the ventilation groove 33. Valve motors 23 are fixedly installed on the sides of the multiple partition plates 22. Ventilation valves 24 are fixedly installed at the output end of the valve motors 23. Ventilation valves 24 are rotatably installed inside the partition plates 22. Multiple air outlets 25 are opened on both sides of the fixed air box 21. The air outlets 25 are located on the side of the cavity of the fixed box 11.
[0032] By utilizing the function of the blower 34 and the ventilation plate 2, air is allowed to enter the interior of the ventilation plate 2 through the air inlet slot 35 and the airflow is allowed to exit through the air outlet slot 16 through multiple cavities inside the fixed box 11, thereby increasing the airflow inside the fixed box 11.
[0033] By setting multiple ventilation valves 24, the airflow inside the fixed box 11 can be reduced in certain areas according to the corresponding fruits and their storage habits.
[0034] The working process of this utility model is as follows:
[0035] In use, fruits are placed in different cavities inside the fixed box 11 according to their type. Based on the different types of fruits and corresponding storage conditions, fruits that do not require ventilation or have weak ventilation are placed from top to bottom inside the fixed box 11. Then, the temperature and humidity sensor 14 and the gas sensor 15 monitor the fruits inside the corresponding cavities. The gas sensor 15 monitors the gas emitted by the fruits to determine the degree of spoilage. In addition, by placing silica gel desiccant on the top of the placement plate 43, the moisture emitted by the fruits inside the cavities of the fixed box 11 is absorbed, and the absorbed moisture is detected by the weighing sensor 42. When the silica gel desiccant absorbs too much moisture, it can be indirectly determined that the fruits have spoiled and leaked water, thereby determining the degree of spoilage of the fruits in that area. The fruits are detected from multiple angles.
[0036] When the blower 34 operates, air enters the interior of the ventilation plate 2 through the air inlet slot 35 and the ventilation slot 33. The circulating air then enters multiple cavities inside the fixed box 11 through the air outlet 25 and is discharged from the air outlet slot 16. This increases the air circulation inside the fixed box 11, prolongs the storage time of the fruit, and by setting multiple ventilation valves 24, the corresponding ventilation valves 24 are controlled to close according to the corresponding fruit and its storage habits, preventing air from flowing into the corresponding fixed box 21. The corresponding cavities of the fixed box 11 will not have air circulation, thus realizing the storage of different types of fruit.
[0037] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A food condition monitoring device for fruit storage, comprising a shelf (1), characterized in that: The bottom of the placement rack (1) is fixedly installed with a fixed base (3), the inside of the placement rack (1) is fixedly installed with a ventilation plate (2), and a plurality of support plates (4) are fixedly installed between the placement rack (1) and the ventilation plate (2); the support plate (4) includes a placement frame (41), the bottom surface inside the placement frame (41) is fixedly installed with a weighing sensor (42), the top of the weighing sensor (42) is fixedly installed with a placement plate (43), and the top of the placement frame (41) is snapped with a support mesh plate (44).
2. The food condition monitoring device for fruit storage according to claim 1, characterized in that: The placement rack (1) includes a fixed box (11), and both sides of the fixed box (11) are hinged with a switch door (12). A monitoring panel (13) is provided on the side of the switch door (12), and multiple air outlet slots (16) are opened on both sides of the fixed box (11).
3. The food condition monitoring device for fruit storage according to claim 2, characterized in that: The placement frame (41) is fixedly installed between the fixed box (11) and the ventilation plate (2), and the ventilation plate (2) divides the interior of the fixed box (11) into multiple cavities. The air outlet (16) is located on the side of the cavity. Temperature and humidity sensors (14) and gas sensors (15) are installed inside the multiple cavities of the fixed box (11).
4. The food condition monitoring device for fruit storage according to claim 2, characterized in that: The fixed base (3) includes a base box (31) fixedly installed at the bottom of the fixed box (11). Air inlet slots (35) are provided on both sides of the base box (31), and ventilation slots (33) are provided on the top of the base box (31). Fixing plates (32) are fixedly installed on both sides inside the base box (31). The fixing plates (32) on both sides are located on both sides of the ventilation slots (33). A blower (34) is fixedly installed on the side of the fixing plate (32).
5. A food condition monitoring device for fruit storage according to claim 4, characterized in that: The ventilation plate (2) includes a fixed air box (21), which is fixedly installed inside the fixed box (11). Multiple partition plates (22) are fixedly installed inside the fixed air box (21). The bottom of the partition plate (22) is connected to the ventilation groove (33). Valve motors (23) are fixedly installed on the sides of the multiple partition plates (22). Ventilation valves (24) are fixedly installed at the output end of the valve motors (23). Ventilation valves (24) are rotatably installed inside the partition plates (22). Multiple air outlets (25) are opened on both sides of the fixed air box (21). The air outlets (25) are located on the side of the cavity of the fixed box (11).