Fruit storage fumigation preservation device and preservation method

Abstract

The present invention provides a fruit storage fumigation preservation device and preservation method, belonging to the technical field of fruit preservation. The device comprises a storage fumigation preservation cabinet body, which is composed of a cabinet shell and a cabinet door installed thereon. The present invention provides a storage mechanism so that the fumigant gas is evenly diffused in the cabinet, ensuring that the fruit is evenly aerated. The device can also firmly support the double-layer placement of the fruit, prevent the fruit from being squeezed or damaged, and ensure that the gas contacts the fruit in all directions. The device can also accommodate fruits of different sizes and avoid the fruits from sticking to each other due to rolling. At the same time, the device can effectively filter impurities and odors in the fumigant gas, and the purified gas can be recycled to extend the shelf life of the fruit and improve the quality of the fruit. The gas collection component is provided to collect the fumigated gas and send it back to the fumigant gas storage box through the gas collection pipe, thereby realizing the recycling of the gas and reducing the waste of the fumigant gas. This is both environmentally friendly and energy-saving.

Description

Technical Field

[0001] The present invention relates to the technical field of fruit preservation, and in particular to a fruit storage fumigation preservation device and a fruit preservation method. Background Art

[0002] Fruits are rich in nutrients such as vitamins, minerals and dietary fiber, and are deeply loved by consumers. However, fruits still have life activities after being picked and are easily infected by microorganisms, their own respiration and external environmental factors, leading to rotting and deterioration, quality decline, and causing huge economic losses.

[0003] Traditional fruit preservation methods have many limitations. Although refrigeration can reduce fruit respiration and microbial activity, it has high equipment requirements and high costs. In addition, some fruits are not suitable for low-temperature storage and are prone to chilling damage. Although chemical preservatives have obvious preservation effects, they may leave chemical residues that are harmful to human health and affect the taste and quality of the fruit. Controlled atmosphere preservation technology requires professional equipment and complex operations, with large initial investment, making it difficult to widely use in small warehouses or homes.

[0004] Existing fruit storage fumigation and preservation devices also face problems in actual use, such as: uneven distribution of fumigation gas, resulting in uneven fruit preservation effects, and some fruits cannot achieve the best preservation state due to excessively high or low gas concentrations; the unreasonable design of the fruit storage structure is not conducive to gas circulation and fruit placement, which can easily cause fruit squeezing and damage, and the adhesion of fruits can also make it impossible to fumigate in some parts; the filtering and purification functions are not perfect, and impurities and odors generated during the fumigation process cannot be effectively removed, affecting the quality of the fruit. Therefore, it is urgent to develop an efficient, safe, and easy-to-operate fruit storage fumigation and preservation device and preservation method to meet the actual needs of the fruit preservation field. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a fruit storage fumigation preservation device and a preservation method to solve the problems that the fumigation gas in the existing storage fumigation preservation device is unevenly distributed, resulting in uneven fruit preservation effects, and some fruits cannot reach the optimal preservation state due to excessively high or low gas concentrations; the fruit storage structure design is unreasonable, which is not conducive to gas circulation and fruit placement, and easily causes fruit squeezing and damage, and the adhesion of fruits also makes it impossible to fumigate some parts; the filtering and purification functions are imperfect, and impurities and odors generated during the fumigation process cannot be effectively removed, thereby affecting the quality of the fruit.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A fruit storage fumigation and preservation device comprises a storage fumigation and preservation cabinet body, wherein the storage fumigation and preservation cabinet body consists of a cabinet shell and a cabinet door installed thereon, the cabinet shell consists of a connected bottom box and a box body, an air nozzle is installed on the bottom wall inside the cabinet shell, and a pair of U-shaped slide grooves are fixedly connected to each side wall of the cabinet shell, and the two pairs of U-shaped slide grooves are symmetrically arranged in one to one correspondence; a gas collection component is provided on the outer wall of one side of the cabinet shell; a storage mechanism is provided between the pair of symmetrically arranged U-shaped slide grooves, and the storage mechanism comprises a support component, a fruit support component and a filter component, the support component is inserted between the pair of U-shaped slide grooves, a plurality of fruit support components are arranged on the top of the support component, and a filter component is arranged below.

[0008] Optionally, the gas collection assembly includes an air vent located above the U-shaped slide and opened on the inner wall of the cabinet shell, and the outer wall of the cabinet shell is fixedly connected with a symmetrically arranged first air pipe and a second air pipe by bolts, wherein the first air pipe is connected to the upper air vent, and the second air pipe is connected to the lower air vent, and a three-way head that is connected to each other is fixedly connected between the first air pipe and the second air pipe, and one end of the three-way head is connected in sequence with a connected air valve and an air collection pipe, and the air collection pipe is connected to the fumigation gas storage box.

[0009] Optionally, the support assembly includes a support plate, which is inserted between a pair of U-shaped slide grooves, a pair of card slots are opened at the bottom, and multiple mounting holes and multiple first material equalizing circular grooves are opened on the top. The first material equalizing circular groove is coaxially arranged with the mounting hole and the multiple first material equalizing circular grooves are interconnected. A second material equalizing circular groove is also opened at the bottom of the support plate and coaxially arranged with the mounting hole, and chamfers are provided between adjacent second material equalizing circular grooves.

[0010] Optionally, the fruit supporting assembly includes a fixing ring fixed in the mounting hole, and a plurality of fruit supporting units are distributed on the fixing ring in a circular array.

[0011] Optionally, the fruit supporting unit includes a first fruit supporting plate fixed on the top of the fixing ring, a second fruit supporting plate is fixedly connected to the top of the first fruit supporting plate, a pair of ventilation pipes are fixed to the inner side walls of the first fruit supporting plate and the second fruit supporting plate, a plurality of first air holes are opened on the ventilation pipe, a plurality of second air holes connected to the ventilation pipe are opened on the top of the second fruit supporting plate, and an arc groove is provided between the pair of ventilation pipes.

[0012] Optionally, the filter assembly includes an elastic clip connected to the slot, a material receiving box that fits the support plate is fixedly connected between a pair of elastic clips, and an air inlet is opened at the center of the bottom end of the material receiving box.

[0013] Optionally, the filter assembly also includes a first filter screen, a second filter screen and a third filter screen arranged in sequence in the material box, wherein the third filter screen is close to the support plate, and a pair of limit strips are provided under the first filter screen, the second filter screen and the third filter screen, and the outer wall of the limit strip is fixedly connected to the side wall of the material box.

[0014] Optionally, the mesh diameter of the third filter is larger than that of the second filter, the mesh diameter of the second filter is larger than that of the first filter, the shapes of the first filter, the second filter and the third filter are all concave at the top and convex at the bottom, and purification carbon is provided between the three.

[0015] Optionally, the first fruit supporting plate, the second fruit supporting plate and the ventilation duct are all made of elastic material, the first fruit supporting plate is curved, and the second fruit supporting plate is arc-shaped.

[0016] The present application also provides a fruit storage fumigation preservation method, which includes the following steps: S1. Preparation: Place the fruit to be preserved on the fruit supporting unit of the fruit supporting assembly, and place the fruit on the first fruit supporting plate and the second fruit supporting plate respectively, and ensure air circulation around the fruit through the first air hole on the ventilation pipe and the second air hole on the top of the second fruit supporting plate.

[0017] S2. Fumigation gas introduction: Turn on the nozzle to spray the fumigation gas. The sprayed fumigation gas will enter the air inlet and then into the feeding box.

[0018] S3. Gas equalization and circulation: The gas entering the feeding box is filtered and purified by the first filter, the second filter, the third filter and the purification carbon, and then evenly dispersed through the second equalization circular groove of the support component, and enters the installation hole, and then enters the ventilation pipe, and is ejected from the first air hole and the second air hole. Part of it will enter the arc groove, and part will enter the second equalization circular groove through the gap between the fruit supporting units and be evenly dispersed. The fumigated gas will be evenly dispersed through the second equalization circular groove above.

[0019] S4. Collection of fumigant gas: Open the gas valve, and the fumigant gas will pass through the first gas pipe and the second gas pipe and out of the cabinet through the vent hole on the inner wall of the cabinet shell, pass through the T-joint, the gas valve and the gas collection pipe, and then enter the fumigant gas storage box for collection.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the above scheme, the support component and the fruit support component are arranged in coordination, and the material-uniform circular groove of the support component and the ventilation pipe, arc groove and air hole of the fruit support component are coordinated to allow the fumigation gas to diffuse evenly in the cabinet, ensuring that the fruit is evenly aerated, avoiding uneven preservation effects due to differences in gas concentration, and ensuring that the overall preservation state of the fruit is good.

[0022] By setting up the fruit supporting assembly, with a curved and elastic first fruit supporting plate and an arc-shaped second fruit supporting plate design, combined with ventilation pipes and arc-shaped grooves, it can not only firmly support the double-layer placement of fruits, but also prevent the fruits from being squeezed and damaged, and ensure that the gas contacts the fruits in all directions, avoiding the problem of local fumigation. At the same time, it can adapt to the placement of fruits of different sizes, and also avoid the fruits from sticking to each other due to rolling.

[0023] Through the setting of filtering components, the use of multiple layers of filter screens with different pore sizes and purification carbon can effectively filter out impurities and odors in the fumigation gas. The purified gas can be recycled to create a good storage environment for fruits, extend the shelf life of fruits, and improve the quality of fruits.

[0024] In summary, the present invention provides a storage mechanism, which not only allows the fumigation gas to diffuse evenly in the cabinet, ensuring that the fruit is evenly exposed to the gas, avoiding uneven preservation effects due to differences in gas concentration, and ensuring that the overall preservation state of the fruit is good, but also can firmly support the double-layer placement of the fruit, prevent the fruit from being squeezed and damaged, and ensure that the gas contacts the fruit in all directions, avoiding the problem of partial fumigation not being able to be carried out. At the same time, it can be adapted to the placement of fruits of different sizes, and also avoids the fruits from sticking to each other due to rolling. At the same time, it can also effectively filter impurities and odors in the fumigation gas, and the purified gas can be recycled to create a good storage environment for the fruit, extend the shelf life of the fruit, and improve the quality of the fruit.

[0025] By setting up the gas collection component, the fumigation gas can be collected and sent back to the fumigation gas storage box through the gas collection pipe, so as to realize the recycling of gas and reduce the waste of fumigation gas, which is both environmentally friendly and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the fruit storage fumigation preservation device;

[0028] Figure 2 for Figure 1 Schematic diagram of the partial three-dimensional structure from the second viewing angle;

[0029] Figure 3 It is an enlarged three-dimensional structural diagram of the storage mechanism;

[0030] Figure 4 It is an enlarged three-dimensional structural diagram of the support assembly;

[0031] Figure 5 This is a first-person perspective enlarged three-dimensional structural diagram of the fruit support component;

[0032] Figure 6 for Figure 5 Schematic diagram of the second perspective three-dimensional structure;

[0033] Figure 7 for Figure 5 Schematic diagram of some three-dimensional structures;

[0034] Figure 8 It is an enlarged three-dimensional structural diagram of the supporting assembly and the filter assembly;

[0035] Figure 9 for Figure 8 Schematic diagram of the second perspective three-dimensional structure;

[0036] Figure 10 It is an enlarged three-dimensional structural diagram of the filter component;

[0037] Figure 11 for Figure 10 Schematic diagram of a cross-sectional enlarged three-dimensional structure;

[0038] Figure 12 This is an enlarged three-dimensional structural diagram of the filter component.

[0039] Reference numerals:

[0040] 1. Storage fumigation cabinet body; 11. Cabinet shell; 12. Cabinet door; 2. Storage mechanism; 22. Support assembly; 221. Support plate; 222. Slot; 223. Mounting hole; 224. First material distribution groove; 225. Second material distribution groove; 226. Chamfer; 23. Fruit support assembly; 231. Fixing ring; 232. Fruit support unit; 233. First fruit support plate; 234. Second fruit support plate; 235. Ventilation duct; 236. Arc-shaped groove; 237, first air hole; 238, second air hole; 24, filter assembly; 241, material box; 242, elastic clip; 243, air inlet; 244, first filter; 245, second filter; 246, third filter; 247, limit strip; 3, gas collection assembly; 31, first air pipe; 32, second air pipe; 33, three-way connector; 34, air valve; 35, air collection pipe; 4, nozzle; 5, U-shaped slide.

[0041] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0042] The following describes in detail a fruit storage fumigation preservation device and preservation method provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0043] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0044] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0045] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0046] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0047] like Figures 1 to 12As shown, the embodiment of the present invention provides a fruit storage fumigation preservation device and a preservation method, including a storage fumigation preservation cabinet body 1, the storage fumigation preservation cabinet body 1 is composed of a cabinet shell 11 and a cabinet door 12 installed thereon, the cabinet shell 11 is composed of a connected bottom box and a box body, a nozzle 4 is installed on the bottom wall of the cabinet shell 11, a fumigation gas storage box connected to the nozzle 4 through a pipeline is provided in the bottom box, the fumigation gas storage box is provided with an exhaust fan, the fumigation gas storage box and the exhaust fan are prior art and are not shown in the figure, a pair of U-shaped chutes 5 are fixedly connected to each side wall of the cabinet shell 11, the two pairs of U-shaped chutes 5 correspond to each other and Symmetrical arrangement; a gas collection component 3 is provided on the outer wall of one side of the cabinet shell 11; a storage mechanism 2 is provided between a pair of symmetrically arranged U-shaped chutes 5, and the storage mechanism 2 comprises a supporting component 22, a fruit supporting component 23 and a filter component 24. The supporting component 22 is inserted between the pair of U-shaped chutes 5, and a plurality of fruit supporting components 23 are provided on the top thereof, and a filter component 24 is provided below. The storage fumigation and fresh-keeping cabinet body 1 is also provided with a temperature regulating device for regulating the temperature in the cabinet to provide a suitable temperature environment for fruit preservation. The temperature regulating device, the nozzle 4, the exhaust fan, etc. are all connected to the same control unit to achieve unified control.

[0048] like Figure 1 As shown, the gas collection assembly 3 includes an air vent located above the U-shaped slide groove 5 and opened on the inner wall of the cabinet shell 11. The outer wall of the cabinet shell 11 is fixedly connected with a symmetrically arranged first air pipe 31 and a second air pipe 32 by bolts, wherein the first air pipe 31 is connected to the upper air vent, and the second air pipe 32 is connected to the lower air vent. A three-way head 33 that is connected to each other is fixedly connected between the first air pipe 31 and the second air pipe 32. One end of the three-way head 33 is connected in sequence with a connected air valve 34 and an air collection pipe 35. The air collection pipe 35 is connected to the fumigation gas storage box. Gas flow sensors are provided on the first air pipe 31 and the second air pipe 32 for monitoring the gas flow and transmitting data to the control unit so as to accurately adjust the air valve 34 to achieve precise control of the gas flow and concentration.

[0049] The gas collection assembly 3 is a key part for achieving the recycling of fumigant gas. The air vents on the inner wall of the cabinet shell 11 are cleverly distributed above the U-shaped chute 5, which can effectively collect fumigant gas at different heights in the cabinet to avoid gas residue and waste. The first air pipe 31 and the second air pipe 32 are respectively connected to the upper and lower air vents, and cooperate with the three-way head 33, the air valve 34 and the air collection pipe 35 to form an efficient gas recovery system. By adjusting the air valve 34, the flow and direction of the gas can be accurately controlled, so that the fumigant gas can be smoothly recovered from the cabinet to the fumigation gas storage box for recycling, which not only reduces costs but also reduces pollution to the environment. In addition, gas flow sensors are provided on the first air pipe 31 and the second air pipe 32 to monitor the gas flow in real time, provide data support for the adjustment of the air valve 34, and ensure that the fumigant gas concentration in the cabinet is always maintained within the range suitable for fruit preservation, further improving the stability and reliability of the preservation effect.

[0050] like Figure 3 、 Figure 4 、 Figure 8 As shown, the support assembly 22 includes a support plate 221, which is inserted between a pair of U-shaped slide grooves 5. A pair of card slots 222 are provided at the bottom, and multiple mounting holes 223 and multiple first material equalizing circular grooves 224 are provided on the top. The first material equalizing circular groove 224 is coaxially arranged with the mounting hole 223 and the multiple first material equalizing circular grooves 224 are interconnected. A second material equalizing circular groove 225 coaxially arranged with the mounting hole 223 is also provided at the bottom of the support plate 221, and chamfers 226 are provided between adjacent second material equalizing circular grooves 225. The support plate 221 is made of high-strength, corrosion-resistant food-grade plastic material to ensure that it will not contaminate the fruit during long-term use, and can withstand the weight of the fruit, thereby ensuring the stability and durability of the device.

[0051] The support plate 221 of the support assembly 22 is plugged into the U 223, and the fruit holding component 23 is provided with a support plate 221.

[0052] like Figure 3 、 Figures 5 to 7 As shown, the fruit supporting assembly 23 includes a fixing ring 231 fixed in the mounting hole 223, and a plurality of fruit supporting units 232 are distributed in a circular array on the fixing ring 231. The fruit supporting units 232 can facilitate the supporting of fruits of different sizes and specifications. The fruit supporting unit 232 includes a first fruit supporting plate 233 fixed on the top of the fixing ring 231, and a second fruit supporting plate 234 is fixedly connected to the top of the first fruit supporting plate 233. A pair of ventilation pipes 235 are fixed to the inner side walls of the first fruit supporting plate 233 and the second fruit supporting plate 234. A plurality of first air holes 237 are provided on the ventilation pipe 235, and a plurality of second air holes 238 connected to the ventilation pipe 235 are provided on the top of the second fruit supporting plate 234. An arc groove 236 is provided between the pair of ventilation pipes 235. The surfaces of the first fruit supporting plate 233 and the second fruit supporting plate 234 are provided with anti-slip protrusions to increase the friction when the fruit is placed, prevent the fruit from slipping, and further ensure the storage safety of the fruit.

[0053] The first fruit supporting plate 233, the second fruit supporting plate 234 and the ventilation pipe 235 are all made of elastic material. The first fruit supporting plate 233 is curved, and the second fruit supporting plate 234 is arc-shaped. The elastic material is medical-grade silicone, which not only has good elasticity and flexibility, but also meets food contact safety standards. It will not cause any harmful substances to migrate to the fruit, ensuring the safety of the fruit.

[0054] The fixing ring 231 of the fruit supporting assembly 23 is installed in the mounting hole 223 of the supporting plate 221, and multiple fruit supporting units 232 are distributed on the fixing ring 231 in a circular array. This layout makes full use of the space and is convenient for supporting the water pipe. The first fruit supporting plate 233 and the second fruit supporting plate 234 are both made of elastic material, and the first fruit supporting plate 233 is curved and the second fruit supporting plate 234 is arc-shaped. This design can not only provide double-layer stable support for the fruit, but also adapt to fruits of different shapes and sizes through its own elastic deformation, effectively preventing the fruit from being squeezed, damaged and moved during storage. The first air hole 23 on the ventilation pipe 235 7 and the second air hole 238 on the top of the second fruit supporting plate 234 cooperate with each other to enable the fumigant gas to contact the fruit in all directions, ensuring that every part of the fruit can be fully fumigated, avoiding the problem of partial fumigation. At the same time, the arc groove 236 between the pair of ventilation pipes 235 increases the contact area between the gas and the fruit, further promoting the uniform distribution of the gas, so that the fruit can better absorb the fumigant gas and achieve an ideal preservation effect. Anti-slip protrusions are provided on the surface of the first fruit supporting plate 233 and the second fruit supporting plate 234, which effectively increases the friction between the fruit and the fruit supporting plate, preventing the fruit from slipping during storage, and ensuring the storage safety of the fruit.

[0055] like Figures 8 to 12 As shown, the filter assembly 24 includes an elastic clip 242 that is snapped into the slot 222, a pair of elastic clips 242 are fixedly connected with a material box 241 that fits the support plate 221, an air inlet 243 is opened at the center of the bottom end of the material box 241, and the material box 241 is made of a transparent material, which is convenient for observing the use of the internal filter material and replacing the filter assembly in time to ensure the filtering effect. The filter assembly 24 also includes a first filter 244, a second filter 245, and a second filter 246 that are sequentially arranged in the material box 241. The first filter screen 244, the second filter screen 245 and the third filter screen 246 are arranged close to the support plate 221, and a pair of limit strips 247 are provided under the first filter screen 244, the second filter screen 245 and the third filter screen 246. The outer wall of the limit strip 247 is fixedly connected to the side wall of the material box 241. The first filter screen 244, the second filter screen 245 and the third filter screen 246 are all detachably installed in the material box 241, which is convenient for replacing damaged or failed filters separately and reducing maintenance costs.

[0056] The hole diameter of the third filter 246 is larger than that of the second filter 245, and the hole diameter of the second filter 245 is larger than that of the first filter 244. The first filter 244, the second filter 245 and the third filter 246 are all concave on the top and convex on the bottom, and purification carbon is provided between the three. The purification carbon is specially treated activated carbon, and its surface has been chemically modified to increase its adsorption capacity for harmful gases and odors, further improving the filtering and purification effect.

[0057] The elastic clip 242 of the filter assembly 24 is tightly clipped into the clip groove 222 of the support plate 221, so that the material box 241 can be firmly attached to the bottom of the support plate 221. The air inlet 243 at the center position of the bottom end of the material box 241 is located just above the U-shaped slide 5, which is convenient for collecting the fumigant gas rising from below, ensuring the comprehensiveness of the filtration. The material box 241 is made of transparent material, which is convenient for the user to observe the usage of the internal filter material at any time, and to find out the blockage or failure of the filter material in time, so as to replace the filter assembly in time, to ensure that the filtration effect is always good and the air in the cabinet is kept clean. The first filter 244, the second filter 245 and the third filter 246 are arranged in the material box 241 in sequence, and the third filter 246 is close to the support plate 221. The design of different pore sizes enables it to filter the fumigant gas in layers. The pore diameter of the third filter 246 is the largest, and it first filters larger particles of impurities, followed by the second filter 245 and the first filter 244. Smaller particles are filtered in turn, and the purification carbon between the three can effectively remove impurities, microorganisms and odors in the fumigation gas. The purified gas re-circulates, creating a clean and healthy storage environment for the fruit, extending the shelf life of the fruit and improving the quality of the fruit. The limit strip 247 under the filter can not only fix the position of the filter to prevent it from being displaced during the gas flow, but also play a supporting role to ensure the structural stability of the filter and the reliability of the filtering effect. The first filter 244, the second filter 245 and the third filter 246 are all detachable, which is convenient for replacing damaged or failed filters separately, reducing maintenance costs and improving the maintainability of the device.

[0058] The above-mentioned components cooperate with each other to jointly realize the efficient preservation function of the fruit storage fumigation preservation device. Through the recycling and concentration control of the gas collection component, the reasonable layout of the storage mechanism, the uniform distribution of gas, the protection of the fruit and the filtration and purification, the entire device can provide a stable, clean and suitable fumigation preservation environment for the fruit. In this environment, the respiration of the fruit is effectively inhibited, the growth and reproduction of microorganisms are restricted, and the freshness and quality of the fruit can be maintained for a long time, which greatly reduces the decay and deterioration of the fruit during storage and the deterioration of the quality, reduces economic losses, and meets the actual demand of the fruit preservation field for efficient, safe and easy-to-operate preservation devices.

[0059] The present application also provides a fruit storage fumigation preservation method, which includes the following steps: S1. Preparation: Place the fruit to be preserved on the fruit supporting unit 232 of the fruit supporting assembly 23, and place the fruit on the first fruit supporting plate 233 and the second fruit supporting plate 234 respectively. Ensure air circulation around the fruit through the first air hole 237 on the ventilation pipe 235 and the second air hole 238 on the top of the second fruit supporting plate 234. At the same time, according to the preservation requirements of the fruit, set the temperature inside the storage fumigation preservation cabinet body 1 through the control unit.

[0060] S2, fumigation gas introduction: the nozzle 4 is turned on to spray the fumigation gas, and the sprayed fumigation gas enters the air inlet 243 and then enters the material receiving box 241.

[0061] S3. Gas equalization and circulation: The gas in the feeding box 241 is filtered and purified by the first filter 244, the second filter 245, the third filter 246 and the purification carbon, and then evenly dispersed through the second equalization circular groove 225 of the support component 22, and enters the installation hole 223, and then enters the ventilation pipe 235, and is ejected from the first air hole 237 and the second air hole 238. Part of it will enter the arc groove 236, and part will enter the second equalization circular groove 225 through the gap between the fruit supporting units 232 and be evenly dispersed. The fumigated gas will be evenly dispersed through the second equalization circular groove 225 above; in this process, the gas flow sensor monitors the gas flow in real time, and the control unit automatically adjusts the air valve 34 according to the monitoring data to ensure the stability of the gas flow and concentration.

[0062] S4. Collection of fumigant gas: Open the air valve 34. The fumigant gas will pass through the first air pipe 31 and the second air pipe 32 and out of the cabinet through the vent hole on the inner wall of the cabinet shell 11. Then, it will pass through the T-joint 33, the air valve 34 and the air collection pipe 35 and then enter the fumigant gas storage box for collection. When it is observed that the filter material in the material receiving box 241 needs to be replaced, the filter assembly should be replaced in time to ensure the filtering effect.

[0063] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0064] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fruit storage fumigation and preservation device, characterized in that: The storage fumigation and fresh-keeping cabinet comprises a cabinet body, which is composed of a cabinet shell and a cabinet door installed thereon. The cabinet shell is composed of a bottom box and a box body connected to each other. An air jet head is installed on the bottom wall of the cabinet shell. A pair of U-shaped slides are fixedly connected to each side wall of the cabinet shell. The two pairs of U-shaped slides are corresponding to each other and are symmetrically arranged. A gas collection assembly is provided on the outer wall of one side of the cabinet shell; A storage mechanism is provided between a pair of symmetrically arranged U-shaped chutes, and the storage mechanism includes a supporting component, a fruit supporting component and a filtering component. The supporting component is inserted between the pair of U-shaped chutes, and a plurality of fruit supporting components are provided on the top thereof, and a filtering component is provided below. The support assembly includes a support plate, which is inserted between a pair of U-shaped slide grooves, a pair of card slots are opened at the bottom, a plurality of mounting holes and a plurality of first material-distributing circular grooves are opened at the top, the first material-distributing circular grooves are arranged coaxially with the mounting holes and the plurality of first material-distributing circular grooves are interconnected, a second material-distributing circular groove is further opened at the bottom of the support plate and coaxially with the mounting holes, and chamfers are provided between adjacent second material-distributing circular grooves; The fruit holding assembly comprises a fixing ring fixed in the mounting hole, and a plurality of fruit holding units are distributed in a circumferential array on the fixing ring; The fruit supporting unit includes a first fruit supporting plate fixed to the top of the fixing ring, a second fruit supporting plate fixedly connected to the top of the first fruit supporting plate, a pair of ventilation pipes fixed to the inner side walls of the first fruit supporting plate and the second fruit supporting plate, a plurality of first air holes are provided on the ventilation pipe, a plurality of second air holes connected to the ventilation pipe are provided on the top of the second fruit supporting plate, and an arc groove is provided between the pair of ventilation pipes; The filter assembly includes an elastic clip connected in the slot, a material receiving box that fits the support plate is fixedly connected between a pair of elastic clips, and an air inlet is opened at the center of the bottom end of the material receiving box.

2. The fruit storage fumigation and preservation device according to claim 1, characterized in that: The gas collection assembly includes a vent located above the U-shaped slide and opened on the inner wall of the cabinet shell. The outer wall of the cabinet shell is fixedly connected with a symmetrically arranged first air pipe and a second air pipe by bolts, wherein the first air pipe is connected to the upper air pipe, and the second air pipe is connected to the lower air pipe. A three-way head that is connected to each other is fixedly connected between the first air pipe and the second air pipe, and one end of the three-way head is connected in sequence with a connected air valve and an air collection pipe, and the air collection pipe is connected to the fumigation gas storage box.

3. The fruit storage fumigation and preservation device according to claim 1, characterized in that: The filter assembly also includes a first filter screen, a second filter screen and a third filter screen arranged in sequence in the material box, wherein the third filter screen is close to the support plate, and a pair of limit strips are provided under the first filter screen, the second filter screen and the third filter screen, and the outer wall of the limit strip is fixedly connected to the side wall of the material box.

4. The fruit storage fumigation and preservation device according to claim 3, characterized in that: The diameter of the third filter mesh is larger than that of the second filter mesh, the diameter of the second filter mesh is larger than that of the first filter mesh, the first filter mesh, the second filter mesh and the third filter mesh are all concave at the top and convex at the bottom, and purification carbon is provided between the three.

5. The fruit storage fumigation and preservation device according to claim 1, characterized in that: The first fruit supporting plate, the second fruit supporting plate and the ventilation duct are all made of elastic material. The first fruit supporting plate is curved, and the second fruit supporting plate is arc-shaped.

6. A method for preserving fruit by a fumigation device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Preparation: Place the fruits to be kept fresh on the fruit support unit of the fruit support assembly. Place the fruits on the first and second fruit support plates, respectively. Ensure air circulation around the fruits through the first air holes on the ventilation duct and the second air holes on the top of the second fruit support plate. S2. Fumigation gas introduction: Turn on the nozzle to spray the fumigation gas. The sprayed fumigation gas will enter the air inlet and then into the feeding box. S3, gas equalization and circulation: The gas entering the feeding box is filtered and purified by the first filter, the second filter, the third filter and the purification carbon, and then evenly dispersed through the second equalization circular groove of the support assembly, and enters the installation hole, and then enters the ventilation pipe, and is ejected from the first air hole and the second air hole. Part of it will enter the arc groove, and part will enter the second equalization circular groove through the gaps between the fruit supporting units and be evenly dispersed. The fumigated gas will be evenly dispersed through the second equalization circular groove above; S4. Collection of fumigant gas: Open the gas valve, and the fumigant gas will pass through the first gas pipe and the second gas pipe and out of the cabinet through the vent hole on the inner wall of the cabinet shell, pass through the T-joint, the gas valve and the gas collection pipe, and then enter the fumigant gas storage box for collection.

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