A kind of nut storage fresh-keeping device based on nitrogen lock fresh
Patent Information
- Application Number
- CN202521909116.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-05
AI Technical Summary
[0002]坚果作为由坚硬果皮包裹单粒种子的干果类果实，涵盖核桃、榛子、夏威夷果等树坚果及葵花籽、花生等果实种子类，其富含40%-80%不饱和脂肪酸、蛋白质及矿物质，是人体必需营养的重要来源，然而，坚果在常温储藏中面临两大核心挑战：其一，油脂成分在光照、氧气和水分作用下易发生氧化反应，生成醛、酮类物质导致"哈喇味"变质；其二，湿热环境易滋生黄曲霉素等一级致癌物，当环境温度达26-28℃且湿度超80%时，霉菌可在72小时内繁殖并产生毒素，传统真空包装虽能隔绝氧气，但无法抑制残留氧气的氧化作用，氮气锁鲜技术通过形成无氧环境，氮气的化学稳定性可延缓细胞代谢速率达80%以上，同时实验数据显示，采用氮气锁鲜的坚果在12个月储藏期内，过氧化值仅上升0.12g/100g，远低于传统包装的0.45g/100g，且维生素E保留率提高37%，因此使用氮气保鲜坚果是坚果储藏的重要方式，但现有的坚果储藏保鲜装置在使用时氮气的进入位置大多固定，使得氮气不能均匀分布在储藏装置的内部，使得氮气的浓度不同，从而造成保鲜程度的不同，影响坚果的储藏，有鉴于此，特提出本实用新型
[0009]本实用新型的有益效果是：通过氮气输送组件能将氮气输送至储存箱中，从而使坚果位于氮气中，从而达到保鲜的目的，同时氮气输送组件在输送氮气时能调整氮气输送的位置，从而能提高氮气的均匀程度，提高了保鲜的效果。
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Figure CN224891730U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut storage technology, and in particular to a nut storage and preservation device based on nitrogen locking. Background Technology
[0002] Nuts, as dried fruits consisting of a single seed encased in a hard shell, encompass tree nuts such as walnuts, hazelnuts, and macadamia nuts, as well as seeds like sunflower seeds and peanuts. Rich in 40%-80% unsaturated fatty acids, protein, and minerals, they are an important source of essential nutrients for the human body. However, nuts face two major challenges when stored at room temperature: First, the oil components are prone to oxidation under the influence of light, oxygen, and moisture, producing aldehydes and ketones that cause a rancid taste and spoilage. Second, humid and hot environments easily breed aflatoxin and other Group 1 carcinogens. When the ambient temperature reaches 26-28℃ and the humidity exceeds 80%, mold can multiply and produce toxins within 72 hours. While traditional vacuum packaging can isolate oxygen, it cannot suppress residual oxygen. Nitrogen gas preservation technology, by creating an anaerobic environment, slows down cell metabolism by more than 80% due to the oxidation effect of nitrogen. Experimental data shows that nuts preserved with nitrogen gas have a peroxide value increase of only 0.12g / 100g during a 12-month storage period, far lower than the 0.45g / 100g increase in traditional packaging, and the vitamin E retention rate is increased by 37%. Therefore, using nitrogen to preserve nuts is an important method of nut storage. However, existing nut storage and preservation devices mostly have fixed nitrogen entry points, resulting in uneven nitrogen distribution inside the device and varying nitrogen concentrations, thus affecting the degree of preservation and impacting nut storage. Therefore, this invention is proposed. Utility Model Content
[0003] To overcome the technical defects of the existing technology, this utility model provides a nut storage and preservation device based on nitrogen gas locking, which has the effect of uniform nitrogen distribution. The nitrogen gas delivery component can deliver nitrogen gas to the storage box, so that the nuts are in nitrogen gas, thereby achieving the purpose of preservation. At the same time, the nitrogen gas delivery component can adjust the position of nitrogen gas delivery during nitrogen delivery, thereby improving the uniformity of nitrogen gas and improving the preservation effect.
[0004] The technical solution adopted in this utility model includes: A storage box, wherein a support leg is fixedly installed at the lower end of the storage box, and an anti-slip pad is fixedly installed at the lower end of each support leg; The partition is L-shaped and is fixedly installed on both sides of the inside of the storage box, and one side of the partition has an array of connecting holes. A nitrogen delivery assembly is mounted on the storage tank, and a portion of the nitrogen delivery assembly is located in the cavity formed by the partition and the storage tank; A lid is attached to the upper end of the storage box, and a vacuum pump is fixedly installed at the lower middle position of the lid. In use: First, place the structure at the location using the support legs, then place the nuts in the storage box, where they are located between the partitions. Then, seal the storage box with the lid, and then use the vacuum pump to evacuate the inside of the storage box to a near-vacuum level. Finally, use the nitrogen delivery assembly to evenly deliver nitrogen to the storage box, thereby completing the nitrogen preservation and storage of the nuts.
[0005] Preferably, in order to fix the lid to the storage box, a sealing gasket is fixedly installed on the lower outer side of the lid, and a latch is fixedly installed at the middle position of the outer two sides of the lid, and the lid is snapped onto the upper end of the storage box by the latch.
[0006] Preferably, in order to complete the nitrogen delivery, the nitrogen delivery assembly includes a gas pump, which is fixedly installed on one side of the lower end of the storage tank. An inlet pipe is fixedly installed at the input end of the gas pump, and a one-way valve is fixedly installed on the inlet pipe. A three-way pipe is fixedly installed at the output end of the gas pump, and connecting joints are snapped to both ends of the three-way pipe. The connecting joints are fixedly installed on both sides of the lower outer end of the storage tank, and a telescopic hose is fixedly installed at the other end of the connecting joint. The other end of the telescopic hose extends to both sides of the interior of the storage tank.
[0007] Preferably, in order to drive the lifting threaded rod to rotate, the nitrogen delivery assembly further includes a reciprocating motor. The reciprocating motor is fixedly installed on both sides of the lower outer end of the storage box, and the output end of the reciprocating motor is fixedly installed with the lifting threaded rod. The upper end of the lifting threaded rod passes through the storage box and is rotatably engaged with the upper end of the partition.
[0008] Preferably, in order to drive the lifting rod and the gas diffuser box to rise and fall, thereby adjusting the nitrogen delivery position, the nitrogen delivery assembly further includes a guide rod. The guide rod is fixedly installed at the four corners inside the storage tank, and the upper end of the guide rod is fixedly connected to the partition. A lifting rod is sleeved on the lifting threaded rod and the guide rod. The lifting rod is threadedly connected to the lifting threaded rod. A gas diffuser box is fixedly installed on one side of the lifting rod. A gas diffuser nozzle is arranged in an array on one side of the gas diffuser box, and one end of the telescopic hose is connected to the inside of the gas diffuser box.
[0009] The beneficial effects of this utility model are: the nitrogen conveying component can deliver nitrogen to the storage box, thereby placing the nuts in nitrogen and achieving the purpose of preservation. At the same time, the nitrogen conveying component can adjust the position of nitrogen delivery during nitrogen delivery, thereby improving the uniformity of nitrogen and enhancing the preservation effect. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the box cover of this utility model; Figure 3 This is a schematic diagram of the storage box in this utility model; Figure 4 This is a half-sectional view of the nitrogen delivery assembly in this utility model.
[0011] Explanation of reference numerals in the attached drawings: 1. Storage box; 2. Support leg; 3. Partition; 4. Connecting hole; 5. Nitrogen delivery assembly; 501. Gas pump; 502. Inlet pipe; 503. One-way valve; 504. T-connector; 505. Connecting joint; 506. Telescopic hose; 507. Reciprocating motor; 508. Lifting threaded rod; 509. Guide rod; 5010. Lifting rod; 5011. Gas diffuser box; 5012. Gas diffuser nozzle; 6. Box cover; 7. Vacuum pump; 8. Lock. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-4 As shown, this embodiment provides a nut storage and preservation device based on nitrogen gas locking, including a storage box 1, a partition 3, a nitrogen gas delivery assembly 5, and a box cover 6. Support legs 2 are fixedly installed at the lower end of the storage box 1, and anti-slip pads are fixedly installed at the lower ends of the support legs 2. The partition 3 is L-shaped and is fixedly installed on both sides inside the storage box 1, with connecting holes 4 arrayed on one side of the partition 3. The nitrogen gas delivery assembly 5 is installed on the storage box 1, and a portion of the nitrogen gas delivery assembly 5 is located in the space formed between the partition 3 and the storage box 1. Inside the cavity; the lid 6 is snapped onto the upper end of the storage box 1, and a vacuum pump 7 is fixedly installed at the lower middle position of the lid 6; in use: first, place the structure at the place of use using the support legs 2, then store the nuts in the storage box 1, at this time the nuts are located between the partitions 3, then seal the storage box 1 with the lid 6, then use the vacuum pump 7 to evacuate the inside of the storage box 1 to a near vacuum level, and then use the nitrogen delivery component 5 to evenly deliver nitrogen to the storage box 1, thereby completing the nitrogen preservation and storage of the nuts.
[0013] As a technical optimization solution of this utility model, specifically as follows: Figure 2As shown, a sealing gasket is fixedly installed on the lower outer side of the lid 6, and a latch 8 is fixedly installed in the middle of the outer two sides of the lid 6. The lid 6 is snapped onto the upper end of the storage box 1 by the latch 8. When in use, the lid 6 can be fixed to the upper end of the storage box 1 by the latch 8, thereby forming a sealed storage space.
[0014] As a technical optimization solution of this utility model, specifically as follows: Figure 4 As shown, the nitrogen delivery assembly 5 includes a gas pump 501, which is fixedly installed on one side of the lower end of the storage tank 1. An inlet pipe 502 is fixedly installed at the input end of the gas pump 501, and a one-way valve 503 is fixedly installed on the inlet pipe 502. A three-way pipe 504 is fixedly installed at the output end of the gas pump 501, and connecting connectors 505 are snapped onto both ends of the three-way pipe 504. The connecting connectors 505 are fixedly installed on both sides of the lower outer end of the storage tank 1, and a telescopic hose 506 is fixedly installed at the other end of the connecting connector 505. One end extends to both sides of the interior of the storage box 1. A gas dispersing box 5011 is fixedly installed on one side of the lifting rod 5010. A gas dispersing nozzle 5012 is arrayed on one side of the gas dispersing box 5011. One end of the telescopic hose 506 is connected to the interior of the gas dispersing box 5011. In use, the gas pump 501 can deliver nitrogen to the gas dispersing box 5011 through the air inlet pipe 502, the three-way pipe 504, the connecting joint 505 and the telescopic hose 506, so that nitrogen can be delivered to the storage box 1 through the gas dispersing nozzle 5012, thus completing the nitrogen preservation and storage of nuts.
[0015] As a technical optimization solution of this utility model, specifically as follows: Figure 4 As shown, the nitrogen delivery assembly 5 also includes a reciprocating motor 507, which is fixedly installed on both sides of the lower outer end of the storage box 1. A lifting threaded rod 508 is fixedly installed at the output end of the reciprocating motor 507. The upper end of the lifting threaded rod 508 passes through the storage box 1 and is rotatably engaged with the upper end of the partition 3. The nitrogen delivery assembly 5 also includes a guide rod 509, which is fixedly installed at the four corners inside the storage box 1. The upper end of the guide rod 509 is fixedly connected to the partition 3. A lifting rod 5010 is sleeved on the lifting threaded rod 508 and the guide rod 509. The lifting rod 5010 is threadedly connected to the lifting threaded rod 508. When delivering nitrogen, the reciprocating motor 507 can drive the lifting threaded rod 508 to rotate, thereby driving the lifting rod 5010 to rise and fall, so that the gas distribution box 5011 can rise and fall, improving the uniformity of nitrogen delivery and improving the storage effect.
[0016] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.
Claims
1. A nut storage and preservation device based on nitrogen-locking freshness, characterized in that, include: Storage box (1), the lower end of the storage box (1) is fixedly installed with support legs (2), and the lower end of each support leg (2) is fixedly installed with anti-slip pads; The partition (3) is L-shaped and is fixedly installed on both sides of the inside of the storage box (1). A connecting hole (4) is arrayed on one side of the partition (3). A nitrogen delivery assembly (5) is installed on the storage tank (1), and a portion of the nitrogen delivery assembly (5) is located in the cavity formed by the partition (3) and the storage tank (1). The nitrogen delivery assembly (5) also includes a reciprocating motor (507), which is fixedly installed on both sides of the lower outer end of the storage tank (1). A lifting threaded rod (508) is fixedly installed at the output end of the reciprocating motor (507). The upper end of the lifting threaded rod (508) passes through the storage tank (1) and is rotatably engaged with the upper end of the partition (3). The nitrogen delivery assembly (5) also includes a guide rod (509), which is fixedly installed at the four corners inside the storage box (1), and the upper end of the guide rod (509) is fixedly connected to the partition (3). A lifting rod (5010) is sleeved on the lifting threaded rod (508) and the guide rod (509). The lifting rod (5010) is threadedly connected to the lifting threaded rod (508). A gas diffuser box (5011) is fixedly installed on one side of the lifting rod (5010), and a gas diffuser nozzle (5012) is arranged in an array on one side of the gas diffuser box (5011). The lid (6) is snapped onto the upper end of the storage box (1), and a vacuum pump (7) is fixedly installed at the middle position of the lower end of the lid (6).
2. The nut storage and preservation device based on nitrogen locking as described in claim 1, characterized in that: A sealing gasket is fixedly installed on the lower outer side of the box cover (6), and a latch (8) is fixedly installed on the middle position of the outer two sides of the box cover (6). The box cover (6) is snapped onto the upper end of the storage box (1) by the latch (8).
3. The nut storage and preservation device based on nitrogen locking as described in claim 1, characterized in that: The nitrogen delivery assembly (5) includes a gas pump (501), which is fixedly installed on the lower side of the storage tank (1), and an air inlet pipe (502) is fixedly installed at the input end of the gas pump (501), and a one-way valve (503) is fixedly installed on the air inlet pipe (502).
4. The nut storage and preservation device based on nitrogen locking as described in claim 3, characterized in that: The output end of the gas pump (501) is fixedly installed with a three-way pipe (504), and the other two ends of the three-way pipe (504) are each connected with a connector (505). The connector (505) is fixedly installed on both sides of the lower outer end of the storage box (1).
5. The nut storage and preservation device based on nitrogen locking as described in claim 4, characterized in that: The other end of the connecting joint (505) is fixedly installed with a telescopic hose (506), the other end of which extends to both sides of the interior of the storage box (1), and one end of the telescopic hose (506) is connected to the interior of the air diffuser box (5011).