A packaging box for storing fruit and vegetable preservatives

Abstract

This utility model discloses a packaging box for storing fruit and vegetable preservatives, relating to the field of fruit and vegetable preservative storage technology. It includes a fruit and vegetable packaging box body, a fruit and vegetable packaging box cover, and a ventilation control component. This utility model facilitates the control of the evaporation rate and dosage of the fruit and vegetable preservatives inside the packaging box through the ventilation control component. It has a high reusability rate, a simple structure, and the fruit and vegetable packaging box body facilitates the classification and storage of the fruit and vegetable preservatives, improving space utilization and preventing damage to fruits and vegetables due to external shaking.

Description

Technical Field

[0001] This utility model relates to the field of fruit and vegetable preservative storage technology, specifically a packaging box for storing fruit and vegetable preservatives. Background Technology

[0002] In the agricultural sector, fruit and vegetable preservation is crucial, and gas-volatile preservatives are widely used. However, most commercially available products are packaged in small non-woven fabric bags, which are prone to evaporation and leakage. Most of these products have fixed openings, making it impossible to control the permeability inside the fruit and vegetable packaging. This results in poor preservation within the packaging and an inability to control the evaporation rate and dosage of the preservative. If the evaporation is too fast, the preservative is depleted in a short time and loses its preservative effect. If it is too slow, the dosage is insufficient and cannot effectively inhibit microbial growth or ethylene production. However, if controlled, a stable and effective concentration can be maintained to continuously inhibit the aging and decay of fruits and vegetables, thus improving the quality of fruit and vegetable preservative use. For example, prior art application number CN209871267U provides a packaging box for storing fruit and vegetable preservatives. It includes a main packaging box, a storage packaging box, a breathable non-woven fabric, and a sealing film. The storage packaging box is detachably connected to the bottom of the main packaging box. The breathable non-woven fabric is located on the top of the main packaging box, and the sealing film is adhered to the top of the breathable non-woven fabric. The upper edge of the side wall of the main packaging box has a non-woven fabric connecting surface. The bottom of the main packaging box has connecting outer protrusions, fastening protrusions, and a main box connection opening around its perimeter. The top of the main packaging box has connecting inner protrusions around its perimeter, and fastening protrusions are located on the outer side of the connecting inner protrusions. The top of the storage packaging box is connected to a connecting tube. A sealing film is located on the upper end of the inner wall of the connecting tube, and sharp teeth are located on the top of the side wall of the connecting tube. This utility model provides a packaging box for storing fruit and vegetable preservatives that can control the evaporation rate and dosage of preservatives. Based on actual usage, the existing technology mainly uses a main packaging box, a storage packaging box, breathable non-woven fabric, and a sealing film. The storage packaging box achieves control over the evaporation rate and dosage of preservatives. However, it has been found that the sealing film has a low reusability rate and is not flexible enough. The film is removed by tearing the opening tab, but the opening tab is easily worn after repeated tearing, easily attracting impurities that affect adhesion, and is not conducive to the classification and storage of fruit and vegetable preservatives, reducing space utilization and failing to prevent damage to fruits and vegetables due to external shaking. Therefore, based on actual usage, we have improved the existing technology. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A packaging box for storing fruit and vegetable preservatives includes a fruit and vegetable packaging box body, a fruit and vegetable packaging box body lid, and a breathable control component; A matching fruit and vegetable packaging box lid is hinged to the outer wall of one side of the top of the fruit and vegetable packaging box. A ventilation control component is embedded in one side wall of the top of the fruit and vegetable packaging box lid.

[0006] Furthermore, the ventilation control component includes a hollow sliding sleeve embedded in one side wall of the top of the fruit and vegetable packaging box lid. A circular movable hole is opened on the top side wall of the hollow sliding sleeve. A screw is installed on the inner side wall of the circular movable hole. A sealing rubber piston block is installed on the outer side wall of the bottom end of the screw. A limiting groove matching the sealing rubber piston block is provided at the bottom of the hollow sliding sleeve. A conical head is provided on the outer side wall of the bottom end of the sealing rubber piston block, and a conical groove matching the conical head is opened at the bottom end of the hollow sliding sleeve. A spring is installed adjacent to the outer side wall of the inner cavity of the screw. The bottom of the spring is located on the outer side wall of the top of the sealing rubber piston block, and the top of the spring is located on the top side wall of the inner cavity of the hollow sliding sleeve. A matching fixing cap is threadedly connected to the outer side wall of the screw away from the outer side wall of the top end of the hollow sliding sleeve. Two sets of identical ventilation holes are symmetrically opened on both sides of the hollow sliding sleeve.

[0007] Furthermore: the fruit and vegetable packaging box includes a snap-fit ​​protrusion on the top outer wall that matches the snap-fit ​​groove on the bottom side wall of the fruit and vegetable packaging box lid, and multiple sliding grooves of the same structure are provided on both sides of the inner cavity of the fruit and vegetable packaging box. Multiple partitions of the same structure are slidably connected to the sliding grooves. Storage partitions are provided on the side walls at both ends of the inner cavity of the fruit and vegetable packaging box, and matching pull-out covers are slidably connected to the side walls of the storage partitions at both ends of the inner cavity of the fruit and vegetable packaging box.

[0008] Furthermore: the hollow sliding sleeve includes digital scale markings on one outer side wall.

[0009] Furthermore: the partition includes two sets of first rubber buffer pads with the same structure on both outer side walls, and both sets of first rubber buffer pads and the partition are provided with multiple first circular air vents with the same structure.

[0010] Furthermore: the storage partition includes two sets of second rubber buffer pads with the same structure on both side walls, and both sets of second rubber buffer pads and the storage partition are provided with multiple second circular ventilation holes with the same structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by controlling the ventilated component, facilitates the control of the evaporation rate and dosage of the preservative in the fruit and vegetable packaging box, resulting in high reusability, simple structure, and improved space utilization and protection against damage to fruits and vegetables due to external shaking. Specifically, the user opens the fruit and vegetable packaging box lid by using a snap-fit ​​protrusion on the top outer wall that matches the snap-fit ​​groove on the bottom side wall of the lid. Fruits and vegetables are then manually placed into the inner cavity of the packaging box. Multiple identical partitions, slidably connected by a sliding groove, are then pulled out to the initial positioning position of the placed fruit and vegetables. The partition is inserted into the corresponding groove at the limiting position of the fruit and vegetables, limiting their movement and preventing them from shifting. Multiple identical grooves and partitions are located on both sides of the inner cavity of the fruit and vegetable packaging box, allowing for the categorized storage of more different types of fruits and vegetables. When subjected to external shaking, the elasticity of the rubber absorbs the impact through the combined action of two sets of identical first rubber buffer pads on the outer walls of the partitions, two sets of identical second rubber buffer pads on the outer walls of the storage partitions, and rubber buffer pads on the inner walls of the fruit and vegetable packaging box. This prevents excessive compression and damage to the fruits and vegetables by the partitions and storage partitions, facilitating the categorized storage and limiting of the fruit and vegetable preservative packaging box, improving space utilization, and preventing damage to fruits and vegetables due to external forces. Damaged by shaking, the fruit and vegetable packaging box is manually closed by manually moving a pull-out cover that slides between the two ends of the inner cavity of the packaging box and the side walls of the storage partitions. The fruit and vegetable preservative packet is placed into the gaps formed by the two ends of the packaging box and the two sets of storage partitions for storage. The two sets of pull-out covers are then manually moved to close. Both sets of first rubber buffer pads and partitions have multiple identical first circular vent holes, and both sets of second rubber buffer pads and storage partitions have multiple identical second circular vent holes, facilitating the flow of gas from the fruit and vegetable preservative packet into the inner cavity of the packaging box. When it is necessary to control the evaporation rate and dosage of the fruit and vegetable preservative, the screw located on the side wall of the inner cavity of the circular movable hole is manually pulled upwards. The upward movement causes a sealing rubber piston block and a conical head on the outer wall of the bottom end of the sealing rubber piston block to disengage from the matching limiting groove at the bottom end of the hollow sliding sleeve. This upward movement compresses the spring against the top side wall of the hollow sliding sleeve's inner cavity. When the appropriate movement height is reached, manually rotating the screw, whose outer wall is threaded away from the top side wall of the hollow sliding sleeve, causes a matching fixing cap to rotate downwards and abut against the top side wall of the hollow sliding sleeve, fixing the upward-moving screw. Simultaneously, the bottom outer wall of the fixing cap covers the circular movable hole, limiting gas discharge to only two sets of vents to prevent unstable gas flow caused by too many vents.The position and height of the hollow sliding sleeve are easily determined by observing the numerical scale on its outer wall. This allows users to directly adjust its height and ventilation level in future use. The detached sealing rubber piston and conical head, having left the conical groove, allow the gas evaporating from the fruit and vegetable preservative packet in the packaging box to flow naturally through the conical groove and exit via two sets of identical vents symmetrically located on both sides of the hollow sliding sleeve. Controlling the height of the sealing rubber piston and conical head allows for the control of the flow rate of the evaporating gas from the fruit and vegetable preservative packet. This allows for easy control of the evaporation rate and dosage of the preservative within the packaging box, resulting in high repeatability and a simple structure.

[0012] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application can be realized and obtained through the structures particularly pointed out in the written description and accompanying drawings. The technical solutions of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view schematic diagram of the fruit and vegetable packaging box structure of this utility model; Figure 3 This is a schematic diagram of the structure of the ventilation control component of this utility model; Figure 4 This is a cross-sectional schematic diagram of the structure of the ventilation control component of this utility model. In the figure: 1. Fruit and vegetable packaging box body; 11. Snap-fit ​​protrusion; 12. Slide groove; 13. Partition; 131. First rubber buffer pad; 132. First circular ventilation hole; 14. Storage partition; 141. Second circular ventilation hole; 142. Second rubber buffer pad; 15. Pull-out cover; 2. Fruit and vegetable packaging box cover; 3. Ventilation control component; 31. Hollow sliding sleeve; 311. Digital scale; 32. Circular movable hole; 33. Fixed cap; 34. Screw; 35. Spring; 36. Sealing rubber piston block; 37. Conical head; 38. Conical groove; 39. Ventilation hole. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0018] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a packaging box for storing fruit and vegetable preservatives, including a fruit and vegetable packaging box body 1, a fruit and vegetable packaging box body cover 2, and a breathable control component 3; A matching fruit and vegetable packaging box lid 2 is hinged to the outer side wall of the top side of the fruit and vegetable packaging box 1; The top side wall of the fruit and vegetable packaging box 2 is equipped with a control ventilation component 3. The control ventilation component 3 makes it easy to control the evaporation rate and dosage of the fruit and vegetable preservative in the packaging box. It has a high reusability and simple structure. In addition, the fruit and vegetable packaging box 1 is conducive to the classification, storage and positioning of the fruit and vegetable preservative packaging box, improving space utilization and preventing damage to fruits and vegetables due to external shaking.

[0020] Preferably, the ventilation control component 3 includes a hollow sliding sleeve 31 embedded in one side wall of the top of the fruit and vegetable packaging box cover 2. A circular movable hole 32 is formed on one side wall of the top end of the hollow sliding sleeve 31. A screw 34 is provided on the inner side wall of the circular movable hole 32. A sealing rubber piston block 36 is provided on the outer side wall of one bottom end of the screw 34. A limiting groove matching the sealing rubber piston block 36 is provided at the bottom of the hollow sliding sleeve 31. A conical head 37 is provided on the outer side wall of one bottom end of the sealing rubber piston block 36. A conical groove 38 matching the conical head 37 is formed at one bottom end of the hollow sliding sleeve 31. The screw 34 is adjacent to the outer side wall of one inner end of the hollow sliding sleeve 31. A spring 35 is provided on the side wall. The bottom of the spring 35 is located on the top outer wall of the sealing rubber piston block 36, and the top of the spring 35 is located on the top side wall of the inner cavity of the hollow sliding sleeve 31. A matching fixing cap 33 is threadedly connected to the outer wall of the screw 34 away from the top outer wall of the hollow sliding sleeve 31. Two sets of vent holes 39 with the same structure are symmetrically opened on both sides of the hollow sliding sleeve 31. When it is necessary to control the volatilization rate and dosage of the fruit and vegetable preservative, the screw 34 located on the inner wall of the circular movable hole 32 is manually pulled upward. The upward movement of the screw 34 drives the sealing rubber piston block 36 and the sealing rubber piston located on the bottom outer wall. A tapered head 37 is provided on the outer wall of one bottom end of block 36, which simultaneously disengages from the bottom end of hollow sliding sleeve 31, where a matching limiting groove is provided at the top and a tapered groove 38. This allows it to move upwards, causing spring 35 to be compressed by the top side wall of the inner cavity of hollow sliding sleeve 31. When the appropriate moving height is reached, the screw 34, whose outer wall is threaded away from the top side of hollow sliding sleeve 31, is manually rotated downwards to abut against the top side wall of hollow sliding sleeve 31, thus fixing the upward-moving screw 34. The position can be easily determined by observing the numerical scale 311 on one side of the outer wall of hollow sliding sleeve 31. The height and position are easily adjustable by the user, allowing for direct adjustment of the height and ventilation. The detached sealing rubber piston block 36 and conical head 37, having left the conical groove 38, allow the gas evaporating from the fruit and vegetable preservative packet in the fruit and vegetable packaging box 1 to flow naturally through the conical groove 38 to the hollow sliding sleeve 31. Two sets of identical ventilation holes 39 are symmetrically opened on both sides of the sleeve for discharge. Controlling the height of the sealing rubber piston block 36 and conical head 37 facilitates the control of the flow rate of the evaporating gas from the fruit and vegetable preservative packet. This allows for easy control of the evaporation rate and dosage of the preservative within the fruit and vegetable packaging box, resulting in high repeatability and a simple structure.

[0021] Preferably, the fruit and vegetable packaging box 1 includes a snap-fit ​​protrusion 11 on the top outer wall that matches the snap-fit ​​groove on the bottom side wall of the fruit and vegetable packaging box cover 2. Multiple identical sliding grooves 12 are provided on both sides of the inner cavity of the fruit and vegetable packaging box 1. Multiple identical partitions 13 are slidably connected to each sliding groove 12. Storage partitions 14 are provided on both ends of the inner cavity of the fruit and vegetable packaging box 1. Matching pull-out covers 15 are slidably connected to the side walls adjacent to the storage partitions 14 at both ends of the inner cavity of the fruit and vegetable packaging box 1. The fruit and vegetable are pulled out to the designated position where the fruit and vegetables were just placed by sliding the multiple identical partitions 13 connected to the sliding grooves 12. Then, the partitions 13 are manually placed back into the corresponding sliding grooves 12 at the designated position of the fruit and vegetables to limit their movement. The multiple identical sliding grooves 12 and partitions 13 on both sides of the inner cavity of the fruit and vegetable packaging box 1 allow for the categorized storage of more different types of fruits and vegetables.

[0022] Preferably, the hollow sliding sleeve 31 includes a digital scale 311 on one outer side wall. By observing the digital scale 311 on one outer side wall of the hollow sliding sleeve 31, its position and height can be easily determined, making it convenient for the user to directly adjust its height and position and adjust its air permeability in the future.

[0023] Preferably, the partition 13 includes two sets of first rubber buffer pads 131 with the same structure on both outer side walls. Both sets of first rubber buffer pads 131 and the partition 13 are provided with multiple first circular ventilation holes 132 with the same structure. The multiple first circular ventilation holes 132 with the same structure on both sets of first rubber buffer pads 131 and the partition 13, the two sets of second rubber buffer pads 142 and the storage partition 14 are provided with multiple second circular ventilation holes 141 with the same structure, facilitate the flow of gas volatilization from the fruit and vegetable preservative packet into the inner cavity of the fruit and vegetable packaging box 1.

[0024] Preferably, the storage partition 14 includes two sets of second rubber buffer pads 142 with the same structure on both side walls. Both sets of second rubber buffer pads 142 and the storage partition 14 are provided with multiple second circular ventilation holes 141 with the same structure. When the partition 13 (including the two sets of first rubber buffer pads 131 with the same structure on both side walls), the storage partition 14 (including the two sets of second rubber buffer pads 142 with the same structure on both side walls), and the rubber buffer pads on the inner side walls of the fruit and vegetable packaging box 1 are shaken, the elasticity of the rubber absorbs the impact force and prevents the partition 13 and the storage partition 14 from excessively squeezing and damaging the fruits and vegetables, which facilitates the classified storage and positioning of the fruit and vegetable preservative packaging box.

[0025] Example: At the start of operation, the user opens the fruit and vegetable packaging box 2 by using the snap-fit ​​protrusions 11 on the top outer wall of the fruit and vegetable packaging box 1, which match the snap-fit ​​grooves on the bottom side wall of the fruit and vegetable packaging box 2. Fruits and vegetables are manually placed into the inner cavity of the fruit and vegetable packaging box 1. Multiple identical partitions 13, connected to the sliding grooves 12, are then pulled out to the designated position where the fruit and vegetables were initially placed. The partitions 13 are then manually placed back into the corresponding sliding grooves 12 to prevent movement. The multiple identical sliding grooves 12 and partitions 13 on both sides of the inner cavity of the fruit and vegetable packaging box 1 allow for the categorized storage of various types of fruits and vegetables. Furthermore, when subjected to external shaking, the two sets of identical first rubber buffer pads 131 on both sides of the partition 13 and the two sets of identical second rubber buffer pads 142 on both sides of the storage partition 14 help to retain the fruit and vegetables. The inner wall of the packaging box 1 is equipped with rubber buffer pads. When shaken, the elasticity of the rubber absorbs the impact and prevents the partitions 13 and storage partitions 14 from excessively squeezing and damaging the fruits and vegetables. This facilitates the classification and storage of the fruit and vegetable preservative packaging box, improves space utilization, and prevents the fruits and vegetables from being damaged by external shaking. The two ends of the inner cavity of the fruit and vegetable packaging box 1 are slidably connected to the side walls of the storage partitions 14. The fruit and vegetable preservative pack is placed into the gap formed by the two ends of the fruit and vegetable packaging box 1 and the two sets of storage partitions 14 for storage. The two sets of pull-out covers 15 are then manually closed. The two sets of first rubber buffer pads 131 and partitions 13 are provided with multiple first circular vent holes 132 of the same structure, and the two sets of second rubber buffer pads 142 and storage partitions 14 are provided with multiple second circular vent holes 141 of the same structure, which facilitates the flow of gas volatilized from the fruit and vegetable preservative pack into the inner cavity of the fruit and vegetable packaging box 1. When it is necessary to control the volatilization rate and dosage of the fruit and vegetable preservative, the screw 34, which is located on the inner wall of the circular movable hole 32, is manually pulled upwards. The upward movement of the screw 34 causes the sealing rubber piston block 36 and the conical head 37, which are located on the outer wall of the bottom end of the sealing rubber piston block 36, to move upwards, disengaging from the matching limiting groove and conical groove 38 at the bottom end of the hollow sliding sleeve 31. This causes the spring 35 to be compressed by the side wall of the top end of the inner cavity of the hollow sliding sleeve 31. When the appropriate moving height is reached, the screw 34 is manually rotated downwards, and the matching fixing cap 33, which is threadedly connected to the outer wall of the top end of the hollow sliding sleeve 31, is rotated to abut against the outer wall of the top of the hollow sliding sleeve 31, thus fixing the upward-moving screw 34. At the same time, the bottom outer wall of the fixing cap 33 also covers the circular movable hole. 32. Gas is only allowed to be discharged through two sets of vent holes 39 to avoid unstable gas discharge caused by too many vent holes. The position and height of the hollow sliding sleeve 31 can be easily determined by observing the digital scale 311 set on the outer side wall of one side, which is convenient for users to directly adjust its height and position and adjust the amount of gas discharge next time. Since the detached sealing rubber piston block 36 and conical head 37 are separated from the conical groove 38, the gas volatilized from the fruit and vegetable preservative packet in the fruit and vegetable packaging box 1 is transferred through the conical groove 38 and flows naturally with air to the two sets of vent holes 39 with the same structure on both sides of the hollow sliding sleeve 31 for discharge. By controlling the height of the sealing rubber piston block 36 and conical head 37, it is easy to control the flow of gas volatilized from the fruit and vegetable preservative packet. The above operation makes it easy to control the volatilization rate and dosage of the preservative in the fruit and vegetable packaging box. It has a high reusability and simple structure.

[0026] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts can be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring extensive experimentation. It should be noted that the above embodiments are merely illustrative of the technical solutions of this utility model and not intended to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A packaging box for storing fruit and vegetable preservatives, characterized in that: It includes a fruit and vegetable packaging box body (1), a fruit and vegetable packaging box body lid (2), and a breathable control component (3); The fruit and vegetable packaging box (1) has a matching fruit and vegetable packaging box lid (2) hinged to the outer wall of one side of the top. The top side wall of the fruit and vegetable packaging box cover (2) is provided with a control ventilation component (3). The control ventilation component (3) includes a hollow sliding sleeve (31) embedded in the top side wall of the fruit and vegetable packaging box cover (2). A circular movable hole (32) is opened on the top side wall of the hollow sliding sleeve (31). A screw (34) is provided on the inner side wall of the circular movable hole (32). A sealing rubber piston block (36) is provided on the outer side wall of the bottom end of the screw (34). A limiting groove matching the sealing rubber piston block (36) is provided at the bottom of the hollow sliding sleeve (31). A conical head (37) is provided on the outer side wall of the bottom end of the sealing rubber piston block (36). The hollow sliding sleeve (31) has a tapered groove (38) at one end of its bottom that matches the tapered head (37). The screw (34) is provided with a spring (35) on the outer wall of one end of the hollow sliding sleeve (31) adjacent to the inner cavity. The bottom of the spring (35) is provided on the outer wall of the top of the sealing rubber piston block (36), and the top of the spring (35) is provided on the side wall of the top end of the hollow sliding sleeve (31). The outer wall of the screw (34) is threaded with a matching fixing cap (33) away from the outer wall of the top end of the hollow sliding sleeve (31). The two side walls of the hollow sliding sleeve (31) are symmetrically provided with two sets of vent holes (39) of the same structure.

2. The packaging box for storing fruit and vegetable preservatives according to claim 1, characterized in that: The fruit and vegetable packaging box (1) includes a snap-fit ​​protrusion (11) on the top outer side wall that matches the snap-fit ​​groove on the bottom side wall of the fruit and vegetable packaging box cover (2). The inner cavity of the fruit and vegetable packaging box (1) has multiple sliding grooves (12) with the same structure on both sides. The sliding grooves (12) are slidably connected to multiple partitions (13) with the same structure. The inner cavity of the fruit and vegetable packaging box (1) has storage partitions (14) on both sides. The inner cavity of the fruit and vegetable packaging box (1) has matching pull-out covers (15) slidably connected to the storage partitions (14) on both sides.

3. The packaging box for storing fruit and vegetable preservatives according to claim 1, characterized in that: The hollow sliding sleeve (31) includes a digital scale (311) on one of its outer side walls.

4. A packaging box for storing fruit and vegetable preservatives according to claim 2, characterized in that: The partition (13) includes two sets of first rubber buffer pads (131) with the same structure on both outer side walls. Both sets of first rubber buffer pads (131) and the partition (13) are provided with multiple first circular air vents (132) with the same structure.

5. A packaging box for storing fruit and vegetable preservatives according to claim 2, characterized in that: The storage partition (14) includes two sets of second rubber buffer pads (142) with the same structure on both side walls. Both sets of second rubber buffer pads (142) and the storage partition (14) are provided with multiple second circular ventilation holes (141) with the same structure.

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