Preservation box cover and preservation box

By designing a combination of breathable holes and buckle strips on the lid of the fresh-keeping box, combining the thermal bonding of silicone and tempered glass, the problems of food splashing and gas emission inconvenient during heating in the prior art are solved, and high-temperature and durable sealing and cleaning are achieved Convenient freshness preservation effect.

CN222311400UActive Publication Date: 2025-01-07SUZHOU JINFANWAN PLASTIC TECH CO LTD
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Patent Information

Application Number
CN202421021768.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2025-01-07
Estimated Expiration
2034-05-11

AI Technical Summary

Technical Problem

The existing fresh-keeping box cover is not designed with breathable holes, which leads to food splashing and gas emissions inconvenient when heating the microwave. The sealing ring setting increases the difficulty of cleaning and lacks sealing, making it difficult to achieve the ideal fresh-keeping effect.

Method used

A fresh-keeping box cover including a cover glass plate, a hot-adhesive wrap cover connecting edge and annular engaging part is designed. The sealing and breathable function is achieved through the combination of breathable holes and flip bars and hole plugs, and silicone is used. Thermal bonding is combined with tempered glass to form a high-temperature and durable sealing structure.

Benefits of technology

It realizes the breathable function without opening the cover during heating, enhances sealing performance and cleaning convenience, and is suitable for ovens and microwaves, improving fresh preservation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The box cover comprises a cover body and a covering edge, the cover body comprises a covering surface glass plate and a covering surface connecting edge wrapping the periphery of the covering surface glass plate in a hot sticking mode, air holes are formed in the covering surface glass plate, the box cover of the preservation box further comprises a turning buckling strip, a hole plug and an annular clamping portion, and when covering is conducted, the turning buckling strip is turned over and buckled with the hole plug. And the annular clamping part can form relative clamping with the covering edge and is attached to and sealed on the opening edge of the box body and the inner wall surface of the box body. On one hand, the vent holes are sealed or opened, so that the use requirement is met, and the practicability is enhanced; and on the other hand, a sealing ring is not needed, cleaning of the box cover is facilitated, the adopted abutting part can form covering clamping force while achieving sealing, then the covering force is increased, the sealing performance is improved at the same time, the fresh-keeping purpose is achieved, and in addition, the hot sticking firmness is good, high temperature resistance is relatively achieved, and the box cover is suitable for heating of ovens and microwave ovens.
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Description

Technical Field

[0001] The utility model belongs to the field of daily necessities, in particular to a fresh-keeping box cover and also to a fresh-keeping box. Background Art

[0002] A fresh-keeping box is a container commonly used in the storage, preservation and cooking of food. Usually, the fresh-keeping box includes a box lid, a box body, and a sealing ring arranged on the box lid, wherein the box lid is closed on the edge of the opening of the box body and is sealed by the sealing ring, thereby isolating the inside and outside of the box to achieve freshness preservation.

[0003] However, there are the following defects in actual use:

[0004] 1. When it is necessary to heat in a microwave oven, many box lids are not designed with ventilation holes. Therefore, when heating, the lid needs to be opened and the box needs to be placed in the microwave oven for open heating. However, during heating, the food may splash or the residue in the oven may scatter due to thermal expansion, which is very unhygienic (once a public microwave oven is used, there is a possibility of cross infection). At the same time, after the food is processed and packaged, it will produce some gas during the ripening process. This gas is very bad for the quality assurance of food storage and must be discharged. For example, for green coffee beans, the lack of ventilation holes causes inconvenience in storage and microwave heating, so it is of low practicality.

[0005] 2. The setting of the sealing ring not only increases the difficulty of cleaning, but also easily causes deformation during disassembly and cleaning. Therefore, the sealing is greatly insufficient and it is difficult to achieve the ideal preservation purpose. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved fresh-keeping box cover.

[0007] At the same time, the utility model also relates to a fresh-keeping box.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A fresh-keeping box cover comprises a cover body and a cover edge, wherein the cover body comprises a cover glass plate and a cover connecting edge wrapped around the cover glass plate by heat bonding, wherein an air hole is formed on the cover glass plate, and the fresh-keeping box cover also comprises a flip buckle strip close to the air hole and arranged on the cover edge, a hole plug arranged on the flip buckle strip and capable of sealing the air hole, and an annular clamping portion arranged at the bottom of the cover connecting edge along the circumference of the cover glass plate and capable of deforming inwardly and resetting outwardly, wherein when the cover is closed, the annular clamping portion can form a relative clamp with the cover edge and fit and seal on the opening edge of the box body and the inner wall surface of the box body.

[0010] Preferably, the annular clamping portion includes an annular body extending downward from the bottom of the cover surface connection edge, and a deformation portion extending upward and outwardly from the bottom of the annular body, wherein the deformation portion is folded inward by an external force, and maintains a tendency to open outward to form a clamping resistance force. Here, under the structural layout, it is not only conducive to the fit formed by the deformation, but also increases the covering force under elastic resistance, that is, to achieve the desired purpose of sealing and firm covering.

[0011] According to a specific implementation and preferred aspect of the utility model, the deformation part includes a deformation ring body located at the bottom and an outer ring body arranged at the outer end of the deformation ring body, wherein the thickness formed by the outer ring body is greater than the thickness of the deformation ring body. This design can further improve the clamping force while maintaining a good seal.

[0012] According to another specific implementation and preferred aspect of the utility model, the buckle strip includes a connection portion connected to the outer side of the cover edge, a bending portion extending outward from the connection portion, a fitting portion formed at the outer end of the bending portion, and a raised portion formed at the outer end of the fitting portion, wherein the hole plug is arranged at the fitting portion, and the fitting portion can be fully fitted on the surface of the cover glass plate to form a seal. The flipping and fitting insertion ensures the sealing when closed, and enhances the practicality.

[0013] Preferably, the shape formed by the bent portion matches the cover edge. Matching here means that after flipping, the shape completely fits the cover edge, reducing the probability of the plunger falling out of the hole.

[0014] In some specific embodiments, there is at least one vent hole, which is arranged near the cover surface connection edge, and the buckle strip and the hole plug form a buckle assembly corresponding to the vent hole. Generally, one is enough, and of course, the layout can be made according to different volume sizes.

[0015] According to another specific implementation and preferred aspect of the utility model, the cover edge includes an extension body extending outward from the outside of the cover surface connection edge, and an outer clamping body bent downward from the outer end of the extension body, wherein a clamping force is formed between the outer clamping body, the extension body and the annular clamping portion. In this way, a sealing ring is not required, which is not only convenient for cleaning, but also the sealing effect formed can meet the needs of use.

[0016] Preferably, the cover surface connecting edge, the annular clamping portion and the cover edge are made of the same material and are integrally formed, which is convenient for processing.

[0017] In some specific embodiments, the cover connecting edge, the annular clamping portion, and the cover edge are made of silicone; the cover glass plate is tempered glass, and the silicone and the tempered glass are thermally bonded.

[0018] Specifically, the biggest design creativity of the product of this application is that it is an independent part. The actual conventional products achieve the effect of several parts. Conventional products are composed of a box body, a sealing ring, a button, and a silicone plug. Our product directly uses silicone hot-bonding molding technology to seal and firmly combine it with tempered glass (cover glass plate). Then, during the cover, the internal silicone can also form a clamping resistance and sealing component. At the same time, an ear is added (flip-button strip, hole plug) to realize a breathable product, which also achieves convenience and meets the current people's life concept of convenience and simplicity. In addition, the glass sheet and silicone are hot-bonded, and the bonding of these two materials is also the biggest highlight of this technology, because both materials are resistant to high temperatures, and the usage scenarios are richer than existing products. The temperature resistance of the plastic fresh-keeping box lid on the market is 75 degrees to 120 degrees. After our combination, the temperature resistance can reach more than 200, and it can be used in either an oven or a microwave oven.

[0019] Another technical solution of the utility model is: a fresh-keeping box, which includes a box cover and a box body, the box cover is the above-mentioned fresh-keeping box cover, and the box cavity formed from the top to the bottom of the box body gradually becomes smaller, and when the cover is closed, the annular clamping part can form a relative clamp with the cover edge and fit and seal on the opening edge of the box body and the inner wall of the box body. Here, why the box cavity is gradually reduced is mainly to further enhance the firmness of the cover, so as to enhance the sealing performance of the sealing lid and the cover body.

[0020] Due to the implementation of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] Based on the existing fresh-keeping boxes, when microwave heating is required, many box lids are not designed with ventilation holes. Therefore, when heating, the lid needs to be opened and the box is placed in the microwave for open heating. However, during heating, the food splashes or the residue in the heating furnace is scattered due to thermal expansion, which is very unhygienic (once a public microwave oven is used, there is a possibility of cross infection); at the same time, after the food is produced, processed and packaged, there is a whole process of ripening, which will produce some gas. This type of gas is very bad for food storage quality assurance and must be discharged. For example, for green coffee beans, that is, no ventilation holes are designed, which causes inconvenience in storage and microwave heating, so the practicality is low; then, due to the setting of the sealing ring, it not only increases the difficulty of cleaning, but also is easy to cause deformation during disassembly and cleaning. Therefore, there is a great lack of sealing, and it is difficult to achieve the ideal preservation purpose and other deficiencies. The utility model cleverly solves the various deficiencies of the existing structure by overall design of the structure of the fresh-keeping box lid. After adopting the fresh-keeping box lid, when closing, the annular clamping part can form a relative clamp with the cover edge and fit and seal on the opening edge of the box body and the inner wall surface of the box body. At the same time, the plunger that moves synchronously with the flip buckle strip can open or close the air hole. Therefore, on the one hand, the utility model meets the needs of use (such as: no need to open the lid for heating and hot air discharge after ventilation, etc.) by setting the air hole to be sealed or opened, thereby enhancing practicality; on the other hand, there is no need to use a sealing ring, which is not only convenient for cleaning the box lid, but also the resistance part used can form a clamping force for closing the box while playing a sealing role, thereby increasing the closing force and also improving the sealing performance to meet the purpose of preservation. In addition, it has good hot adhesive strength and is relatively resistant to high temperatures and is suitable for heating in ovens and microwave ovens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the fresh-keeping box cover in Example 1;

[0023] Figure 2 for Figure 1 A schematic diagram of the main view;

[0024] Figure 3 for Figure 2 AA section view in FIG.

[0025] Figure 4 This is a schematic diagram of the structure of the fresh-keeping box in Example 1;

[0026] Figure 5 This is a schematic diagram of the structural decomposition of the fresh-keeping box in Example 1;

[0027] Figure 6 This is a schematic diagram of the structure of the fresh-keeping box cover in Example 2;

[0028] Figure 7 for Figure 6 A schematic diagram of the main view;

[0029] Figure 8 for Figure 7 BB section diagram in FIG.

[0030] Fig. 9 This is a schematic diagram of the structure of the fresh-keeping box in Example 2;

[0031] Fig.10 This is a schematic diagram of the structural decomposition of the fresh-keeping box in Example 2;

[0032] Fig.11 This is a schematic diagram of the structure of the fresh-keeping box cover in Example 3;

[0033] Fig.12 for Fig.11 A schematic diagram of the main view;

[0034] Fig.13 for Fig.12 The CC section diagram in FIG.

[0035] Fig.14 This is a schematic diagram of the structure of the fresh-keeping box in Example 3;

[0036] Fig.15 This is a schematic diagram of the structural decomposition of the fresh-keeping box in Example 3;

[0037] Wherein: 1, cover body; 10, cover glass plate; 11, cover connecting edge; 100, ventilation hole;

[0038] 2. Covering edge; 20. Extension body; 21. External clamping body;

[0039] 3. Flip-up strip; 30. Connecting portion; 31. Bending portion; 32. Laminating portion; 33. Warping portion;

[0040] 4. Hole plug;

[0041] 5. annular engaging portion; 50. annular body; 51. deformation portion; 510. deformation ring body; 511. outer ring body;

[0042] G, box cover; T, box body. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0049] Example 1

[0050] like Figures 1 to 3 As shown, the fresh-keeping box lid of this embodiment includes a lid body 1 and a cover edge 2, wherein the lid body 1 includes a cover glass plate 10 and a cover connecting edge 11 wrapped around the cover glass plate 10 by heat bonding, wherein the horizontal cross-section of the cover glass plate 10 is square, and an air hole 100 is also formed on the cover glass plate 10, the fresh-keeping box lid also includes a flip-button strip 3 close to the air hole 100 and arranged on the cover edge 2, a hole plug 4 arranged on the flip-button strip 3 and capable of sealing the air hole 100, and an annular clamping portion 5 arranged at the bottom of the cover connecting edge 11 along the circumference of the cover glass plate 10 and capable of deforming inwardly and resetting outwardly.

[0051] Specifically, the cover connection edge 11, the annular clamping portion 5, and the cover edge 2 are made of the same material and are integrally formed. This facilitates processing. In some specific embodiments, the cover connection edge 11, the annular clamping portion 5, and the cover edge 2 are made of silicone, the cover glass plate 10 is tempered glass, and the silicone and the tempered glass are thermally bonded; the cover edge 2 includes an extension body 20 that continues to extend outward from the outside of the cover connection edge 11, and an outer clamping body 21 that bends downward from the outer end of the extension body 20, wherein a clamping force is formed between the outer clamping body 21, the extension body 20, and the annular clamping portion 5. In this way, there is no need to use a sealing ring, which is not only convenient to clean, but also the sealing effect formed can meet the needs of use.

[0052] In some specific embodiments, the annular clamping portion 5 includes an annular body 50 extending downward from the bottom of the cover surface connecting edge 11, and a deformation portion 51 extending upward and outwardly obliquely from the bottom of the annular body 50, wherein the deformation portion 51 is folded inward by an external force, and maintains a tendency to open outward to form a clamping resistance force. In this structural layout, it is not only conducive to the fit formed by the deformation, but also increases the covering force under elastic resistance, that is, to achieve the desired purpose of sealing and firm covering.

[0053] In this example, the deformation part 51 includes a deformation ring body 510 located at the bottom and an outer ring body 511 arranged at the outer end of the deformation ring body 510, wherein the thickness formed by the outer ring body 511 is greater than the thickness of the deformation ring body 510. This design can further improve the clamping force while maintaining a good seal.

[0054] In some specific embodiments, the buckle strip 3 includes a connection portion 30 connected to the outside of the outer clamp body 21, a bent portion 31 extending outward from the connection portion 30, a fitting portion 32 formed at the outer end of the bent portion 31, and a raised portion 33 formed at the outer end of the fitting portion 32, wherein the hole plug 4 is arranged on the fitting portion 32, and the fitting portion 32 can be fully fitted on the surface of the cover glass plate 10 to form a seal, and at the same time, the operation of the raised portion 33 facilitates the opening or closing operation of the buckle, and then the flip and fit plug is inserted to ensure the sealing when closed, and enhance the practicality; in addition, the shape formed by the bent portion 31 matches the cover edge 2. The matching here means: after flipping, it completely fits the shape of the cover edge to reduce the probability of the plunger coming out of the hole.

[0055] In addition, there is one vent hole 100, which is arranged near the cover connecting edge 11, and the buckle strip 3 and the hole plug 4 form a buckle assembly corresponding to the vent hole 100. Of course, the number of vent holes can be arranged according to different volume sizes.

[0056] Combination Figure 4 and Figure 5 As shown, the fresh-keeping box involved comprises a box cover G and a box body T with matching shapes, wherein the box cover G is the above-mentioned fresh-keeping box cover, and the box cavity formed from the top to the bottom of the box body T gradually becomes smaller, and when the cover is closed, the annular clamping portion 5 can form a relative clamp with the cover edge 2 and fit and seal on the opening edge of the box body T and the inner wall of the box body T. Here, why the box cavity is gradually reduced is mainly to further enhance the firmness of the cover, so as to enhance the sealing performance of the sealed lid and the cover body.

[0057] Example 2

[0058] like Figures 6 to 10 As shown, the fresh-keeping box cover and box body T of this embodiment are basically the same as those of Embodiment 1, except that the horizontal cross-section of the cover glass plate 10 of the present application is rectangular, and therefore, the components with reference to the shape of the cover glass plate 10 are changed in shape to match it.

[0059] Example 3

[0060] like Figures 11 to 15 As shown, the fresh-keeping box cover and box body T of this embodiment are basically the same as those of Embodiment 1, except that the horizontal cross-section of the cover glass plate 10 of the present application is circular, and therefore, the components with reference to the shape of the cover glass plate 10 are all changed in shape to match it.

[0061] In summary, regardless of the shape of the cover glass plate, when the matching box lid and box body are closed, the annular clamping portion can form a relative clamp with the cover edge and fit and seal on the opening edge of the box body and the inner wall surface of the box body. At the same time, the plunger that moves synchronously with the flip buckle strip can open or close the air vent. Therefore, on the one hand, the utility model meets the needs of use (such as: no need to open the lid for heating and hot air discharge after ventilation) by setting the air vent to be sealed or open, enhances practicality, and avoids food splashing or cross contamination during heating; on the other hand, there is no need to use a sealing ring, which is not only convenient for cleaning the box lid, but also the resistance part can form a clamping force for closing the cover while sealing, thereby increasing the closing force of the cover. At the same time, it also improves the sealing performance to meet the purpose of preservation; the annular clamping part adopted in the third aspect is not only conducive to the fit formed by deformation, but also increases the covering force under elastic resistance, that is, to achieve the expected sealing and firm covering purpose, and the deformation part includes a deformation ring body located at the bottom and an outer ring body arranged at the outer end of the deformation ring body, wherein the thickness formed by the outer ring body is greater than the thickness of the deformation ring body. This design can further improve the clamping force while maintaining a good seal; the fourth aspect is to ensure the sealing during closure by flipping and fitting insertion, enhance practicality, and at the same time, the shape formed by the bending part matches the covering edge (the matching here means: after flipping, it is completely fitted The shape of the lid and the edge is closed) to reduce the probability of the plunger falling out of the hole; the fifth aspect is that there is no need to use a sealing ring, which is not only convenient to clean, but also the sealing effect formed can meet the needs of use. At the same time, the cover connecting edge, the annular clamping part, and the lid edge are made of silicone and are integrally formed, which is easy to process and the sealing effect brought about meets the needs of insurance; the sixth aspect is that the box cavity gradually becomes smaller, which is mainly to further enhance the firmness of the cover to enhance the sealing performance of the sealing lid and the cover body; the seventh aspect is that the biggest design creativity of this product is an independent part, which is actually achieved by several parts of conventional products. Conventional products are composed of a box body, a sealing ring, a button, and a silicone plug. Ours is directly made of silicone hot glue. The technology is firmly combined with the tempered glass (cover glass plate) for sealing, and then the internal silicone can also form the effect of clamping resistance and sealing components in the cover. At the same time, an ear is added (flip buckle strip, hole plug) to realize the air-permeable product, which also realizes convenience and meets the current people's life concept of convenience and simplicity. The eighth aspect is that the glass sheet and silicone are hot-glued. The bonding of these two materials is also the biggest highlight of this technology, because both materials are resistant to high temperatures, and the usage scenarios are richer than existing products. The temperature resistance of plastic fresh-keeping box lids on the market is 75 degrees to 120 degrees. After our combination, the temperature resistance can reach more than 200, and it can be used in ovens or microwave ovens.

[0062] The above detailed description of the utility model is intended to enable people familiar with the technology in this field to understand the content of the utility model and implement it. It is not intended to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A fresh-keeping box cover, comprising a cover body and a cover edge, characterized in that: The cover body includes a cover glass plate and a cover connecting edge wrapped around the cover glass plate with heat adhesion, wherein an air hole is formed on the cover glass plate, and the fresh-keeping box cover also includes a flip-button strip close to the air hole and arranged on the cover edge, a hole plug arranged on the flip-button strip and capable of sealing the air hole, and an annular clamping portion arranged at the bottom of the cover connecting edge along the circumference of the cover glass plate and capable of deforming inwardly and resetting outwardly, wherein when the cover is closed, the annular clamping portion can form a relative clamping with the cover edge and fit and seal on the opening edge of the box body and the inner wall surface of the box body.

2. The fresh-keeping box cover according to claim 1, characterized in that: The annular clamping portion includes an annular body extending downward from the bottom of the cover surface connecting edge, and a deformation portion extending upward and outwardly obliquely from the bottom of the annular body, wherein the deformation portion is folded inwardly by external force and maintains an outward opening movement trend to form a clamping resistance force.

3. The fresh-keeping box cover according to claim 2, characterized in that: The deformation part comprises a deformation ring body located at the lower part and an outer ring body arranged at the outer end of the deformation ring body, wherein the thickness formed by the outer ring body is greater than the thickness of the deformation ring body.

4. The fresh-keeping box cover according to claim 1, characterized in that: The buckle strip includes a connecting portion connected to the outer side of the cover edge, a bending portion extending outward from the connecting portion, a bonding portion formed at the outer end of the bending portion, and a raised portion formed at the outer end of the bonding portion, wherein the hole plug is arranged at the bonding portion, and the bonding portion can be fully bonded to the surface of the cover glass plate to form a seal.

5. The fresh-keeping box cover according to claim 4, characterized in that: The shape formed by the bent portion matches the covering edge.

6. The fresh-keeping box cover according to claim 1, characterized in that: There is at least one ventilation hole, which is arranged close to the cover surface connecting edge, and the buckle strip and the hole plug form a buckle assembly corresponding to the ventilation holes one by one.

7. The fresh-keeping box cover according to claim 1, characterized in that: The covering edge comprises an extension body extending outward from the outer side of the cover surface connecting edge, and an outer clamping body bent downward from the outer end of the extension body, wherein a clamping force is formed between the outer clamping body, the extension body and the annular clamping portion.

8. The fresh-keeping box cover according to claim 1, characterized in that: The cover surface connecting edge, the annular clamping portion and the cover edge are made of the same material and are integrally formed.

9. The fresh-keeping box cover according to claim 8, characterized in that: The cover connecting edge, the annular clamping portion and the cover edge are made of silicone; the cover glass plate is tempered glass, and the silicone and the tempered glass are thermally bonded.

10. A fresh-keeping box, comprising a box cover and a box body, characterized in that: The box lid is the fresh-keeping box lid according to any one of claims 1 to 9, and the box cavity formed by the box body gradually becomes smaller from the top to the bottom. When the box is closed, the annular snap-fit ​​portion can form a relative clamp with the cover edge and fit and seal on the opening edge and the inner wall of the box body.