A fruit and vegetable fresh-keeping device based on modified atmosphere packaging

Abstract

The utility model relates to fruit and vegetable fresh -keeping technical field, the utility model relates to a fruit and vegetable fresh -keeping device based on air -regulating packaging, including storage box and air -regulating box, air -regulating box sets up on the lateral wall of box body, carries out the adjustment to the inside gas environment of box body, the utility model has the following advantages: the present application monitors the gas concentration in the box in real time through oxygen sensor, carbon dioxide sensor, combines control module and automatically adjusts vacuum pump and multi -gas source gas transmission system, realizes the accurate control of O2, CO2, N2 ratio, breaks through the limitation of traditional air -regulating packaging static adjustment, and the vacuum mechanism replaces the air in the box quickly, and the gas mixer is matched and the fresh -keeping gas is proportioned as needed, and compared with traditional refrigeration technology, the energy consumption is reduced, and the risk of chemical preservative residue is avoided, the adjustable baffle mechanism of the present application passes through the design of slot and through -hole, can separate and store different fruits and vegetables, can keep the gas circulation, improve the space utilization, and the transparent box cover is convenient for observing the storage state.

Description

Technical Field

[0001] This utility model relates to the field of fruit and vegetable preservation technology, specifically to a fruit and vegetable preservation device based on modified atmosphere packaging. Background Technology

[0002] Modified atmosphere storage (MAP) technology, as a core method of modern fruit and vegetable storage, extends shelf life by controlling the proportions of gases such as O2, CO2, and N2 in the storage environment to inhibit respiration and microbial growth in fruits and vegetables. Traditional preservation methods, such as refrigeration and chemical preservatives, suffer from problems such as high energy consumption and residual chemicals. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a fruit and vegetable preservation device based on modified atmosphere packaging. This device achieves fully automated control throughout the entire process through an intelligent control module, significantly improving preservation efficiency and ease of use.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a fruit and vegetable preservation device based on modified atmosphere packaging, comprising:

[0005] A storage box, comprising a box body and a box lid with an opening at the top and rotatably connected to cover the opening, a buckle between the box body and the box lid, a sealing strip embedded on the top surface of the box body that cooperates with the box lid, an adjustable partition mechanism and a gas environment monitoring mechanism in the box body, and a gas supply pipe and an exhaust pipe on the side wall of the storage box.

[0006] A modified atmosphere box, which is installed on the side wall of the box body, regulates the internal gas environment of the box body. The modified atmosphere box is equipped with a vacuuming mechanism connected to the exhaust pipe and a gas supply mechanism connected to the gas supply pipe, which are used to create a vacuum environment inside the box body and introduce the prepared gas into it to achieve fruit and vegetable preservation.

[0007] Preferably, the partition mechanism includes a number of slots evenly spaced on the bottom surface of the box body, wherein some of the slots are fitted with partitions to divide the interior of the box body into multiple relatively independent cavities for storing different kinds of fruits and vegetables, and the partitions are provided with through holes to connect the cavities.

[0008] Preferably, the lid is transparent.

[0009] Preferably, the gas environment monitoring mechanism includes an oxygen sensor and a carbon dioxide sensor disposed on the inner wall of the box.

[0010] Preferably, the vacuuming mechanism includes a vacuum pump disposed in the modified atmosphere box, and the vacuum pump is connected to the exhaust pipe through a pipeline.

[0011] Preferably, the gas delivery mechanism includes a control module, which is electrically connected to the oxygen sensor, the carbon dioxide sensor, and the vacuum pump, respectively. The control module is also electrically connected to a gas mixer, which is connected via pipelines to a first gas pump, a second gas pump, and a third gas pump, which are electrically connected to the control module, and is also connected to the gas delivery pipe. The input ends of the first gas pump, the second gas pump, and the third gas pump are respectively connected to an oxygen interface, a carbon dioxide interface, and a nitrogen interface provided on the modified atmosphere box, and their output ends are connected to the gas mixer.

[0012] Preferably, the modified atmosphere box has a slot and a panel filter is engaged in the slot.

[0013] With the above structure, this utility model has the following advantages:

[0014] This application uses oxygen and carbon dioxide sensors to monitor the gas concentration inside the box in real time. Combined with the control module, it automatically adjusts the vacuum pump and multi-source gas delivery system to achieve precise control of the O2, CO2, and N2 ratios. This breaks through the limitations of static adjustment in traditional modified atmosphere packaging. The vacuum mechanism quickly replaces the air inside the box, and the gas mixer mixes the preservative gas as needed. Compared with traditional refrigeration technology, this reduces energy consumption and avoids the risk of chemical preservative residues. The adjustable partition mechanism of this application uses slots and through holes to separate different fruits and vegetables while maintaining gas circulation and improving space utilization. The transparent lid makes it easy to observe the storage status, and the panel filter ensures gas purity and uses a plug-in method for easy replacement.

[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the structure of this utility model. Figure 3 .

[0020] Figure 4 This is the left view of this utility model.

[0021] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of AA.

[0022] As shown in the figure: 1. Box body; 2. Box cover; 3. Modified atmosphere box; 4. Panel filter; 5. Sealing strip; 6. Slot; 7. Partition; 8. Oxygen sensor; 9. Carbon dioxide sensor; 10. Gas supply pipe; 11. Exhaust pipe; 12. Oxygen interface; 13. Card slot; 14. Gas mixer; 15. Control module; 16. First gas pump; 17. Second gas pump; 18. Third gas pump; 19. Carbon dioxide interface; 20. Nitrogen interface. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] Combination Figures 1-5 A modified atmosphere packaging (MAP) device for preserving fruits and vegetables includes a storage box and a MAP box 3. The MAP box 3 is installed on the side wall of the box body 1 to regulate the internal gas environment of the box body 1.

[0026] The storage box includes a box body 1 and a lid 2. The box body 1 has an opening at the top, and the lid 2 is rotatably connected to the box body 1 and covers the opening. A latch is provided between the box body 1 and the lid 2 for easy opening and closing of the lid 2. To ensure the airtightness of the storage box, a sealing strip 5 is embedded on the top surface of the box body 1, which mates with the lid 2, effectively preventing gas leakage and creating a good sealed environment for preserving fruits and vegetables.

[0027] The box body 1 is equipped with an adjustable partition mechanism 7 and a gas environment monitoring mechanism. The partition mechanism 7 includes several slots 6 evenly spaced on the bottom surface of the box body 1, some of which are into which partitions 7 are inserted. The insertion position and number of partitions 7 can be flexibly adjusted according to the type and quantity of fruits and vegetables to be stored, dividing the interior of the box body 1 into multiple relatively independent cavities for storing different types of fruits and vegetables. At the same time, the partitions 7 have through holes to connect the cavities, ensuring that the gas is evenly distributed throughout the storage box.

[0028] The gas environment monitoring mechanism includes an oxygen sensor 8 and a carbon dioxide sensor 9 installed on the inner wall of the box 1, which are used to monitor the oxygen and carbon dioxide concentrations in the storage box in real time, providing data support for the subsequent regulation of the gas environment by the modified atmosphere box 3.

[0029] The storage box has a gas supply pipe 10 and an exhaust pipe 11 on its side wall, which are used to supply the prepared gas into the box 1 and to exhaust the original gas in the box 1, respectively.

[0030] The modified atmosphere box 3 is located on the side wall of the box body 1 and is mainly used to regulate the internal gas environment of the box body 1. The modified atmosphere box 3 is equipped with a vacuuming mechanism and a gas supply mechanism.

[0031] The vacuuming mechanism includes a vacuum pump installed in the modified atmosphere box 3, which is connected to the exhaust pipe 11 via a pipeline. When it is necessary to modify the atmosphere inside the box 1, the vacuum pump is started, and the original gas inside the box 1 is extracted through the exhaust pipe 11, so that a vacuum environment is formed inside the box 1.

[0032] The gas delivery mechanism includes a control module 15, which is electrically connected to the oxygen sensor 8, the carbon dioxide sensor 9, and the vacuum pump. The control module 15 receives gas concentration data from the oxygen sensor 8 and the carbon dioxide sensor 9, and controls the operation of the vacuum pump and the input of subsequent gases according to the preset preservation gas ratio.

[0033] The control module 15 is also electrically connected to a gas mixer 14. The gas mixer 14 is connected via pipes to a first gas pump 16, a second gas pump 17, and a third gas pump 18, and is also connected to a gas delivery pipe 10. The input terminals of the first gas pump 16, the second gas pump 17, and the third gas pump 18 are respectively connected to an oxygen interface 12, a carbon dioxide interface 19, and a nitrogen interface 20 located on the controlled atmosphere box 3, and their output terminals are connected to the gas mixer 14. Based on data fed back from the gas environment monitoring agency, the control module 15 controls the operation of the first gas pump 16, the second gas pump 17, and the third gas pump 18, delivering oxygen, carbon dioxide, and nitrogen to the gas mixer 14 in a certain proportion for mixing. The mixed gas is then delivered to the interior of the box 1 through the gas delivery pipe 10.

[0034] In addition, the modified atmosphere box 3 has a slot 13 and a panel filter 4 is engaged in the slot 13. The panel filter 4 can filter the gas entering the modified atmosphere box 3, remove impurities and dust, and ensure the purity of the gas input into the box 1.

[0035] When using this fruit and vegetable preservation device, first open the lid 2. Adjust the position and number of the dividers 7 according to the type and quantity of fruits and vegetables to be stored, and place different types of fruits and vegetables into their respective cavities. Then close the lid 2 and fasten the latches.

[0036] Upon receiving the start signal, the control module 15 first activates the vacuum pump, extracting the existing gas inside the housing 1 through the exhaust pipe 11 to create a vacuum environment inside the housing 1. During this process, the oxygen sensor 8 and carbon dioxide sensor 9 monitor the gas concentration inside the housing 1 in real time and feed the data back to the control module 15.

[0037] Once a certain vacuum level is reached inside the container 1, the control module 15, according to the preset preservation gas ratio, controls the first air pump 16, the second air pump 17, and the third air pump 18 to operate, delivering oxygen, carbon dioxide, and nitrogen to the gas mixer 14 for mixing. The mixed gas is then delivered to the inside of the container 1 through the gas delivery pipe 10.

[0038] Throughout the preservation process, oxygen sensor 8 and carbon dioxide sensor 9 continuously monitor the gas concentration inside the box 1. When the gas concentration changes, the control module 15 promptly adjusts the operation of the first air pump 16, the second air pump 17, and the third air pump 18 to ensure that the gas environment inside the box 1 is always in a state suitable for fruit and vegetable preservation.

[0039] Because the lid 2 is transparent, users can easily observe the freshness of the fruits and vegetables inside the storage box. Meanwhile, the panel filter 4 can be replaced periodically to ensure its filtering effect.

[0040] In summary, the modified atmosphere packaging-based fruit and vegetable preservation device of this utility model, through its reasonable structural design and intelligent gas regulation system, can provide a good preservation environment for fruits and vegetables, extend their shelf life, and is easy to operate, making it suitable for various places such as homes and supermarkets.

[0041] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A fruit and vegetable preservation device based on modified atmosphere packaging, characterized in that, include: A storage box, comprising a box body and a box lid with an opening at the top and rotatably connected to cover the opening, a buckle between the box body and the box lid, a sealing strip embedded on the top surface of the box body that cooperates with the box lid, an adjustable partition mechanism and a gas environment monitoring mechanism in the box body, and a gas supply pipe and an exhaust pipe on the side wall of the storage box. A modified atmosphere box, which is installed on the side wall of the box body, regulates the internal gas environment of the box body. The modified atmosphere box is equipped with a vacuuming mechanism connected to the exhaust pipe and a gas supply mechanism connected to the gas supply pipe, which are used to create a vacuum environment inside the box body and introduce the prepared gas into it to achieve fruit and vegetable preservation.

2. The fruit and vegetable preservation device based on modified atmosphere packaging according to claim 1, characterized in that: The partition mechanism includes several slots evenly spaced on the bottom surface of the box, some of which are fitted with partitions to divide the interior of the box into multiple relatively independent cavities for storing different kinds of fruits and vegetables. The partitions have through holes to connect the cavities.

3. The fruit and vegetable preservation device based on modified atmosphere packaging according to claim 1, characterized in that: The lid is transparent.

4. A fruit and vegetable preservation device based on modified atmosphere packaging according to claim 2, characterized in that: The gas environment monitoring mechanism includes an oxygen sensor and a carbon dioxide sensor installed on the inner wall of the box.

5. A fruit and vegetable preservation device based on modified atmosphere packaging according to claim 4, characterized in that: The vacuuming mechanism includes a vacuum pump installed in the modified atmosphere box, and the vacuum pump is connected to the exhaust pipe through a pipeline.

6. A fruit and vegetable preservation device based on modified atmosphere packaging according to claim 5, characterized in that: The gas delivery mechanism includes a control module, which is electrically connected to the oxygen sensor, the carbon dioxide sensor, and the vacuum pump. The control module is also electrically connected to a gas mixer. The gas mixer is connected via pipes to a first gas pump, a second gas pump, and a third gas pump, which are electrically connected to the control module. It is also connected to the gas delivery pipe. The input ends of the first gas pump, the second gas pump, and the third gas pump are respectively connected to an oxygen interface, a carbon dioxide interface, and a nitrogen interface provided on the modified atmosphere box, and their output ends are connected to the gas mixer.

7. A fruit and vegetable preservation device based on modified atmosphere packaging according to claim 6, characterized in that: The modified atmosphere box has a slot in which a panel filter is snapped into place.

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