Sweet potato fresh-keeping storage device

Abstract

The utility model provides a sweet potato fresh-keeping storage device which comprises a storage device top plate, a main body frame, a heat preservation plate and a heat insulation layer are arranged below the storage device top plate, the influence of external temperature can be reduced, stable low temperature is kept in the device, respiration and metabolism of sweet potatoes are restrained, the fresh-keeping period is prolonged, and energy consumption can be reduced. The method has both economic and environmental benefits. The rubber pad of the sealing door enhances the sealing performance, prevents external air, moisture and the like from entering, and maintains the stability of the internal microenvironment. The multi-layer storage rack is matched with the tray guide rails, space is fully utilized, sweet potatoes are conveniently stored in a classified mode and taken and placed conveniently, and integrity of the sweet potatoes is guaranteed. Universal wheels enable the storage rack to be movable, so that the use flexibility is improved. The ventilation fan can exhaust foul gas and introduce fresh air, so that air circulation is ensured, and the humidity is reduced; the filter screen on the rear side can filter impurities, pollution and disease spreading of the sweet potatoes are avoided, and the fresh-keeping quality and storage safety of the sweet potatoes are guaranteed comprehensively.

Description

TECHNICAL FIELD

[0001] The utility model relates to sweet potato storage field, specifically, relate to a kind of sweet potato fresh-keeping storage device. BACKGROUND

[0002] In the field of agriculture, sweet potato has a wide range of uses. It can not only be used as a direct food product, but also can be processed, such as making sweet potato starch, sweet potato vermicelli, preserved sweet potato, sweet potato juice and other food. In addition, sweet potato is an important industrial raw material, which can be used to produce alcohol, citric acid, modified starch and other products. In the feed industry, the stems and roots of sweet potato are also a good source of feed, which can provide rich nutrition for animal husbandry. In the field of sweet potato storage, the existing technology has many shortcomings, which is difficult to meet the needs of long-term high-quality preservation of sweet potato.

[0003] At present, there is no specific and clear method for the specific storage of sweet potato in the cellar grain storage. This leads to a lack of standardized guidance in actual operation, and the storage effect of different operators is quite different.

[0004] Traditional storage facilities often lack good insulation structure, and it is difficult to effectively resist the influence of external temperature changes. In severe winter, the low temperature outside is easy to enter the storage space, and the heat generated by the respiration of sweet potato is difficult to effectively retain, resulting in large temperature fluctuations, which is easy to cause abnormal respiration and heat release of sweet potato, and then cause rot and insect damage.

[0005] The sealing measures of existing storage devices are not perfect, and the sealing door and other parts lack effective sealing structure, so that the outside air is easy to enter, and the internal temperature and humidity are difficult to maintain stable. This not only affects the respiration environment of sweet potato, but also may lead to the invasion of pests and accelerate the deterioration of sweet potato.

[0006] Some storage facilities do not have a reasonable ventilation system, or the ventilation way is improper. Insufficient ventilation will reduce the oxygen content in the storage space and accumulate carbon dioxide, which will cause sweet potato to produce alcohol through anaerobic respiration, poison the tubers and cause rot; while excessive ventilation will cause the humidity to be too low, which will cause sweet potato to wither and reduce the quality of food.

[0007] Traditional storage methods usually cannot reasonably plan the storage space of sweet potato, and the spacing between sweet potatoes is difficult to effectively control. Too small spacing will cause poor ventilation and heat accumulation, increasing the risk of rot and germination; too large spacing will waste storage space and reduce storage efficiency. Moreover, the structure of the existing storage rack may not be flexible enough, which is not conducive to the taking and placing of sweet potato and management.

[0008] In the aspect of preventing diseases and pests, the prior art has limited means. The storage cellar is not disinfected completely, lacks of measures for preventing pests, and the like, so that sweet potato is easily attacked by diseases such as soft rot and black spot, resulting in a large amount of rotten and deteriorated sweet potato and economic losses. Therefore, the present application is improved and a sweet potato fresh-keeping storage device is provided. Content of the utility model

[0009] The utility model discloses to the problem of the background art existing at present. In order to realize the utility model purpose, the utility model provides the following technical scheme: a kind of sweet potato fresh-keeping storage device, including storage device top plate, the lower portion of the storage device top plate is provided with main body frame, the outer surface of the main body frame is provided with heat preservation board, the inner layer of the heat preservation board is provided with heat insulation layer, the outer surface of the main body frame is provided with sealing door, the main body frame is provided with multiple layers of storage shelf.

[0010] As the preferred technical scheme of the utility model, the inner layer edge of the sealing door is provided with sealing rubber pad.

[0011] As the preferred technical scheme of the utility model, the multiple layers of storage shelf are provided with multiple layers of sweet potato tray, and the side of the sweet potato tray is provided with tray guide rail.

[0012] As the preferred technical scheme of the utility model, the tray guide rail is arranged on the inner side surface of the multiple layers of storage shelf.

[0013] As the preferred technical scheme of the utility model, the top of the multiple layers of storage shelf is provided with top baffle, and the lower portion of the multiple layers of storage shelf is provided with bottom plate seat.

[0014] As the preferred technical scheme of the utility model, the lower portion of the bottom plate seat is provided with wheel frame, and universal wheel is arranged on the wheel frame.

[0015] As the preferred technical scheme of the utility model, the rear side of the main body frame is provided with rear cover plate.

[0016] As the preferred technical scheme of the utility model, the rear cover plate is provided with fan frame, the fan frame is provided with ventilation fan, and the rear side of the ventilation fan is provided with filter screen.

[0017] Compared with the prior art, the utility model has the beneficial effects that: the heat preservation board arranged on the outer surface of the main body frame and the heat insulation layer in the inner layer can greatly reduce the influence of external temperature change on the inside of the storage device. Whether in hot summer or cold winter, the inside of the device can maintain a relatively stable low-temperature environment, creating ideal conditions for the fresh-keeping of sweet potato. Stable low temperature can effectively inhibit the respiration and metabolism of sweet potato, reduce the consumption rate of its nutrients, thereby prolonging the fresh-keeping period of sweet potato and reducing the rotten and deteriorated phenomenon caused by temperature fluctuations.

[0018] Due to the good heat insulation effect, the storage device does not need to frequently perform refrigeration or heating operation when maintaining the appropriate temperature, thereby reducing the consumption of energy. This not only helps to save energy costs, but also meets the current development trend of energy saving and environmental protection, having significant economic and environmental benefits.

[0019] The sealing rubber pad at the edge of the inner layer of the sealing door can tightly fit with the main frame when the sealing door is closed, forming a good sealing effect. This can effectively prevent external air, moisture, insects, and dust from entering the inside of the storage device, avoiding pollution and damage to sweet potatoes caused by external factors. For example, the entry of moisture may cause mold on the surface of sweet potatoes, and insects may eat sweet potatoes, and the improvement of sealing performance can greatly reduce the occurrence of these problems.

[0020] Good sealing performance can also prevent the leakage of cold air inside the storage device, ensuring the stability of the internal temperature and gas composition of the device. Sweet potatoes will undergo respiration during storage, producing gases such as carbon dioxide, and a sealed environment can maintain a certain concentration of these gases inside the device, forming a relatively stable microenvironment, which is beneficial to the preservation of sweet potatoes.

[0021] The multi-layer storage shelf arranged inside the main frame provides sufficient storage space for sweet potatoes through the multi-layer sweet potato trays. This layered structure can fully utilize the vertical space inside the device, increasing the storage capacity of sweet potatoes and improving the space utilization rate. At the same time, the sweet potato trays in different layers can be classified and stored according to the variety, size, or storage time of sweet potatoes, facilitating management and searching.

[0022] The tray guide on the side edge of the sweet potato tray is arranged on the inner side surface of the multi-layer storage shelf, so that the sweet potato tray can be easily pulled out and pushed in along the guide. When taking and placing sweet potatoes, workers do not need to move the entire storage shelf or other sweet potatoes, but only need to pull out the corresponding tray to operate, greatly improving work efficiency and reducing labor intensity. Moreover, this structure can also avoid squeezing and damaging other sweet potatoes during the taking and placing process, ensuring the integrity of sweet potatoes.

[0023] The universal wheel below the lower plate seat of the multi-layer storage shelf makes the entire storage shelf movable. When cleaning, maintenance, or re-arrangement of the storage shelf is needed, it can be easily moved to a suitable position, increasing the flexibility and convenience of device use. At the same time, when transporting sweet potatoes, the storage shelf can also be moved closer to the transportation tool according to the actual situation, improving the transportation efficiency.

[0024] The ventilation fan installed on the rear cover can operate periodically or as needed to expel carbon dioxide and other pollutants produced by the sweet potatoes' respiration inside the storage unit, while simultaneously introducing fresh air from outside. This ensures air circulation and freshness inside the unit, preventing oxygen deficiency caused by carbon dioxide buildup, which would negatively impact preservation. Good air circulation also reduces humidity in the storage environment, minimizing the possibility of mold growth.

[0025] The filter behind the ventilation fan effectively filters dust, debris, and potential pathogens from the outside air. During the introduction of fresh air, the filter prevents these impurities from entering the storage unit, thus avoiding contamination and disease spread to the sweet potatoes. This further ensures the freshness of the sweet potatoes and improves storage safety. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of the present invention;

[0027] Figure 2 This is a structural schematic diagram of the present invention;

[0028] Figure 3 A schematic diagram of the multi-layer storage rack structure provided by this utility model;

[0029] Figure 4 This is a schematic diagram of the main structure provided for this utility model;

[0030] Figure 5 A schematic diagram of the multi-layer storage rack structure provided by this utility model;

[0031] Figure 6 A schematic diagram of the universal wheel structure provided by this utility model.

[0032] The image shows:

[0033] 1. Storage unit top plate; 2. Main frame; 21. Rear cover plate; 3. Insulation board; 31. Heat insulation layer; 4. Sealed door; 41. Sealing rubber gasket; 5. Multi-layer storage rack; 6. Sweet potato tray; 7. Tray guide rail; 8. Top partition; 9. Base plate; 10. Casters; 11. Wheel frame; 12. Ventilation fan; 13. Fan frame; 14. Filter screen. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0035] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] Example 1: Please refer to Figures 1-6 A sweet potato preservation and storage device includes a top plate 1, a main frame 2 below the top plate 1, an insulation board 3 on the outer surface of the main frame 2, a heat insulation layer 31 on the inner layer of the insulation board 3, a sealing door 4 on the outer surface of the main frame 2, and a multi-layer storage rack 5 inside the main frame 2. A sealing rubber gasket 41 is provided at the inner edge of the sealing door 4. The multi-layer storage rack 5 has multiple sweet potato trays 6, and tray guide rails 7 are provided on the sides of the sweet potato trays 6. The tray guide rails 7 are located on the inner surface of the multi-layer storage rack 5. A top partition 8 is provided at the top of the multi-layer storage rack 5, and a base plate 9 is provided at the bottom of the multi-layer storage rack 5. A wheel frame 11 is provided below the base plate 9, and casters 10 are provided on the wheel frame 11. A rear cover plate 21 is provided at the rear of the main frame 2. A fan bracket 13 is provided on the rear cover plate 21, a ventilation fan 12 is provided on the fan bracket 13, and a filter screen 14 is provided on the rear side of the ventilation fan 12.

[0037] Working principle of the sweet potato preservation and storage device: The sweet potato preservation and storage device uses the top plate 1 as the top support structure, and the main frame 2 below forms the basic skeleton of the entire device. The insulation board 3 installed on the outer surface of the main frame 2 and its inner heat insulation layer 31 play a key role in heat preservation. During the sweet potato storage process, the temperature of the external environment changes greatly. The insulation board 3 and the heat insulation layer 31 can effectively reduce the transmission of external heat, maintain a relatively stable low temperature environment inside the storage device, create suitable preservation conditions for sweet potatoes, and reduce the risk of sweet potatoes rotting and spoiling due to temperature fluctuations.

[0038] The sealing door 4, located on the outer surface of the main frame 2, has a sealing rubber gasket 41 at its inner edge to enhance the sealing effect. When the sealing door 4 is closed, the sealing rubber gasket 41 fits tightly against the main frame 2, preventing outside air, moisture, and insects from entering the storage device. It also prevents cold air leakage from the device, further ensuring the stability and airtightness of the storage environment and reducing the interference of external factors on the preservation of sweet potatoes.

[0039] The multi-layer storage rack 5 within the main frame 2 provides layered storage space for sweet potatoes. Multi-layer sweet potato trays 6 on the storage rack 5 are used to hold the sweet potatoes. Tray guide rails 7 on the sides of the trays are located on the inner surface of the storage rack 5, allowing the sweet potato trays 6 to be easily pulled out and pushed in along the guide rails. This structure facilitates the handling of sweet potatoes by workers, improves work efficiency, and allows for flexible adjustment of the sweet potato storage position according to actual needs.

[0040] The top partition 8 and the bottom plate 9 of the multi-layer storage rack 5 provide structural support and partitioning for the entire rack. The top partition 8 prevents upper debris from falling onto the sweet potato trays 6, while the bottom plate 9 provides stable support for the rack. The casters 10 on the wheel frame 11 below the bottom plate 9 allow the multi-layer storage rack 5 to be movable, facilitating adjustments to its position as needed, such as for cleaning, maintenance, or rearrangement.

[0041] A fan bracket 13 is installed on the rear cover plate 21 at the rear of the main frame 2. The ventilation fan 12 installed on the fan bracket 13 is a key component for achieving ventilation and air exchange inside the storage device. During the storage of sweet potatoes, the sweet potatoes will respire, producing gases such as carbon dioxide. If these gases accumulate inside the device, they will affect the preservation effect of the sweet potatoes. The ventilation fan 12, through its operation, exhausts the stale air inside the device while introducing fresh air from the outside, ensuring air circulation and freshness within the storage environment.

[0042] The filter screen 14 behind the ventilation fan 12 serves to filter outside air. When outside air is introduced, the filter screen 14 can prevent dust, debris, and potentially carried bacteria from entering the storage device, thus avoiding contamination of the sweet potatoes and further ensuring their freshness.

[0043] Example 2: A sweet potato preservation and storage device. The working process of the sweet potato preservation and storage device is as follows: Preparation stage: Device inspection. Check whether the main frame 2 is stable and whether there is any looseness or damage in the connecting parts. Check whether the insulation board 3 and the heat insulation layer 31 are intact. If there is any damage, repair or replace them in time to ensure good heat insulation performance. Check whether the sealing door 4 can be opened and closed normally, and whether the sealing rubber gasket 41 is aged or deformed. If there are any problems, it needs to be replaced to ensure the sealing effect.

[0044] Check the multi-layer storage rack 5, including the top partition 8 and the base plate 9, to ensure they are securely installed and that the casters 10 can rotate freely. Check that the ventilation fan 12 is functioning properly and that the filter screen 14 is not clogged; if clogged, clean or replace it. Open the sealing door 4 and remove the multi-layer storage rack 5 from the main frame 2 using the casters 10. Use cleaning tools to thoroughly clean the inside of the main frame 2, the multi-layer storage rack 5, the sweet potato trays 6, etc., to remove dust and debris.

[0045] Disinfect the above-mentioned components with a suitable disinfectant to kill any possible pathogens and create a hygienic environment for sweet potato storage. After disinfection, rinse with clean water and air dry. Push the cleaned and disinfected multi-layer storage rack 5 back into the main frame 2 using the casters 10, ensuring that the sweet potato trays 6 can slide smoothly along the tray guide rails 7. Turn on the power to the ventilation fan 12 and test its operation to ensure normal ventilation.

[0046] Sweet potato storage stage

[0047] Select sweet potatoes that are free from pests and diseases, undamaged, and of suitable maturity for storage. Discard any sweet potatoes showing signs of rot or mold to prevent the spread of diseases during storage. Open the sealed door 4 and evenly place the selected sweet potatoes on the sweet potato trays 6 of the multi-layer storage rack 5, being careful not to pile them too thickly to avoid affecting ventilation and the sweet potatoes' respiration. After filling one layer of sweet potato trays 6, push them into the multi-layer storage rack 5 along the tray guide rails 7, completing the placement of sweet potatoes for each layer in sequence. After placing all the sweet potatoes, gently close the sealed door 4, ensuring that the sealing rubber gasket 41 fits tightly against the main frame 2, ensuring that a relatively sealed space is formed inside the storage device.

[0048] The insulation board 3 and the heat insulation layer 31 function to reduce the impact of external temperature changes on the internal temperature of the storage device, maintaining a relatively stable low-temperature environment inside the device, which is beneficial for sweet potato preservation. The ventilation fan 12 operates on a set schedule or according to the actual storage environment. When the fan is running, it expels carbon dioxide and other pollutants produced by the sweet potatoes' respiration, while simultaneously introducing fresh outside air filtered through the filter screen 14, ensuring air circulation and freshness inside the device. The sealed door 4 is opened periodically to check the storage condition of the sweet potatoes, observing for signs of rot, sprouting, etc. If any problematic sweet potatoes are found, they should be removed promptly to prevent the spread of disease.

[0049] Check the sealing condition of the sealing door 4, the operation of the ventilation fan 12, and the blockage of the filter screen 14. If any abnormalities are found, deal with them promptly.

[0050] Sweet potato removal stage: Plan the removal order and storage location of the sweet potatoes in advance. Open the sealing door 4, and carefully remove the sweet potato tray 6 containing the sweet potatoes to be removed along the tray guide rail 7. Repeat the removal process for all the sweet potatoes as planned. If there are any remaining sweet potatoes in the storage device, close the sealing door 4 and continue to maintain good storage conditions. Clean and disinfect the empty sweet potato tray 6 after removing the sweet potatoes for future use.

[0051] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A sweet potato preservation and storage device, comprising a top plate (1) of the storage device, characterized in that, The storage device has a main frame (2) below the top plate (1), and the outer surface of the main frame (2) is provided with a heat insulation board (3). The inner layer of the heat insulation board (3) is provided with a heat insulation layer (31). The outer surface of the main frame (2) is provided with a sealing door (4). The main frame (2) is provided with a multi-layer storage rack (5).

2. The sweet potato preservation and storage device according to claim 1, characterized in that, A sealing rubber pad (41) is provided at the inner edge of the sealing door (4).

3. The sweet potato preservation and storage device according to claim 2, characterized in that, The multi-layer storage rack (5) is provided with multi-layer sweet potato trays (6), and the sides of the sweet potato trays (6) are provided with tray guide rails (7).

4. The sweet potato preservation and storage device according to claim 3, characterized in that, The tray guide rail (7) is set on the inner surface of the multi-layer storage rack (5).

5. The sweet potato preservation and storage device according to claim 4, characterized in that, The top of the multi-layer storage rack (5) is provided with a top partition (8), and the bottom of the multi-layer storage rack (5) is provided with a base plate (9).

6. The sweet potato preservation and storage device according to claim 5, characterized in that, A wheel frame (11) is provided below the base plate (9), and a caster wheel (10) is provided on the wheel frame (11).

7. The sweet potato preservation and storage device according to claim 6, characterized in that, A rear cover plate (21) is provided on the rear side of the main frame (2).

8. A sweet potato preservation and storage device according to claim 7, characterized in that, A fan bracket (13) is provided on the rear cover plate (21), a ventilation fan (12) is provided on the fan bracket (13), and a filter screen (14) is provided on the rear side of the ventilation fan (12).

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