Vacuum fresh-keeping box and refrigerator

Abstract

The utility model discloses a vacuum preservation box and refrigerator, vacuum preservation box includes: box body, inside formation has the storage cavity, cover body is configured as closing or open storage cavity, is provided with first plug -in part on the cover body, and first plug -in part has first cooperation end face, is provided with second plug -in part on the sealing strip, and first plug -in part is inserted with second plug -in part, and second plug -in part has second cooperation end face, and first cooperation end face is in close contact with second cooperation end face, and the sealing strip is silica gel spare, the direction of first cooperation end face and second cooperation end face's close contact is perpendicular to the direction of first plug -in part and second plug -in part's insertion, and the roughness value Ra of first cooperation end face, second cooperation end face is no less than 0.1 and is less than or equal to 0.3. This scheme can avoid the sealing strip to fall off or appear the flash gap between with cover body, improve the sealing performance of vacuum preservation box.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a vacuum food storage box and a refrigerator. Background Technology

[0002] One type of refrigerator in the related technology includes a cabinet and a door. The cabinet contains a refrigerated space, and the door is used to close or open the refrigerated space. A vacuum preservation box is installed inside the cabinet or on the door. A vacuum device is used to create a vacuum inside the box, achieving the pressure required for food preservation. The vacuum preservation box includes a box body and a lid. The lid has a sealing strip, which provides a seal when the box body and lid are closed. However, when the lid is opened, there is a possibility that the sealing strip may detach from the lid or that gaps may appear.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0004] In response to the problems mentioned in the background art, this utility model proposes a vacuum food storage box and refrigerator to prevent the sealing strip from falling off or gaps from appearing between it and the lid, thereby improving the sealing performance of the vacuum food storage box.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0006] In some embodiments, a vacuum food storage container is provided, comprising:

[0007] The box has a storage cavity inside;

[0008] A cover is configured to close or open the storage cavity, and the cover is provided with a first insertion part, the first insertion part having a first mating end face;

[0009] A sealing strip, wherein a second insertion part is provided on the sealing strip, the first insertion part is inserted into the second insertion part, the second insertion part has a second mating end face, the first mating end face abuts against the second mating end face, and the sealing strip is a silicone part;

[0010] Wherein, the contact direction of the first mating end face and the second mating end face is perpendicular to the insertion direction of the first insertion part and the second insertion part, and the roughness values ​​Ra of the first mating end face and the second mating end face are ≥0.1 and Ra≤0.3.

[0011] The above technical solution has the following advantages or beneficial effects:

[0012] After the first and second insertion parts are inserted vertically, the first mating end face and the second mating end face are tightly abutted, avoiding gaps between the sealing strip and the cover, which helps to improve the connection reliability between the sealing strip and the cover.

[0013] The gloss levels of the first and second mating end faces are moderate. Since the sealing strip is made of silicone, the glossy silicone surface of the second mating end face is sticky and adheres to the first mating end face of the cover. When the cover is opened, it can effectively prevent the joint between the first and second mating end faces from being subjected to tension and causing a gap, thus improving the reliability of the connection between the sealing strip and the cover.

[0014] In some embodiments, the first plug-in portion includes a plurality of first slots, the second plug-in portion includes a plurality of second inserts, a second slot is formed between two adjacent second inserts, the second insert is inserted into the corresponding first slot, and the partition wall between two adjacent first slots is inserted into the corresponding second slot.

[0015] The box body includes a circumferential wall, and the mating position of the first mating end face and the second mating end face is located directly above the circumferential wall.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] When the cover and the box are pressed together by external forces such as buckles, the cover moves down as a whole, and the transverse part between the first wall and the circumferential wall of the box is squeezed by force, and the first mating end face and the second mating end face are tightly attached to each other, enhancing the sealing effect.

[0018] In some embodiments, the first insertion portion has a first wall, the first wall forming a sidewall of the first slot located on the outside, and the end of the first wall forming the first mating end face;

[0019] The sealing strip includes a transverse portion, on which a plurality of second inserts are provided, and the second mating end face is formed on the transverse portion and located on the outer side of the second insert.

[0020] In some embodiments, the first insertion portion has a second wall, which forms a sidewall of the first slot located inside;

[0021] The sealing strip includes a vertical portion, and the vertical portion and the second insert located on the inner side are in contact with the second wall.

[0022] The above technical solution has the following advantages or beneficial effects:

[0023] The mating surface between the second insert on the inner side of the vertical section and the second wall is the fifth mating surface. The fifth mating surface has a larger area in contact with the second wall, which helps to improve the connection reliability between the sealing strip and the cover.

[0024] In some embodiments, the vertical portion has a flange on one side facing the circumferential wall of the box body. The flange extends obliquely upward from the vertical portion toward the side close to the circumferential wall and abuts against the circumferential wall.

[0025] The above technical solution has the following advantages or beneficial effects:

[0026] One of the functions of the flange is that when the lid and the box are fastened together and the vacuuming process begins, the pressure difference between the storage cavity and the outside atmosphere is not very large. At this time, the outside atmosphere may seep into the storage cavity through the gap between the horizontal part of the sealing strip and the opening end face of the box. However, since the flange is in contact with the inner wall of the box, the contact point between the flange and the inner wall of the box forms a seal to prevent the outside atmosphere from seeping in, thereby helping to improve the efficiency of vacuuming.

[0027] Another function of the flanged part is that when the vacuuming is finished and the vacuum food storage box is in the process of maintaining low pressure, the sealing strip has two sealing defenses. The first is the sealing contact between the horizontal part of the sealing strip and the opening end face of the box body; the second is the contact between the flanged part and the inner side wall of the box body. Even if a small amount of gas seeps in through the opening end face of the box body, it will be blocked by the flanged part and cannot enter the storage cavity, thereby improving the sealing effect of the vacuum food storage box.

[0028] In some embodiments, the interference between the flange and the circumferential wall is greater than or equal to 1 mm and less than or equal to 1.5 mm.

[0029] The above technical solution has the following advantages or beneficial effects: while ensuring the sealing effect, it does not affect the normal opening of the cover.

[0030] In some embodiments, there is a gap between the vertical portion and the circumferential wall of the box body, the gap being greater than or equal to 1 mm and less than or equal to 2 mm.

[0031] The above technical solution has the following advantages or beneficial effects: while ensuring the sealing effect, it also avoids deformation and failure caused by the left and right shaking of the cover after vacuuming.

[0032] In some embodiments, the roughness value Ra of the mating surface between the vertical portion, the second insert located on the inner side, and the second wall is Ra≥0.4 and Ra≤1.6.

[0033] The above technical solution has the following advantages or beneficial effects: it avoids excessive friction between the sealing strip and the second wall during installation, which would prevent the sealing strip from being installed, and it also avoids the formation of an adsorption force between the sealing strip and the second wall during installation, which would prevent the sealing strip from being installed.

[0034] In some embodiments, a third mating end face is formed at the end of the partition wall, and a fourth mating end face is formed at the bottom of the second slot. The third mating end face and the fourth mating end face are in contact with each other, and the roughness values ​​Ra of the third mating end face and the fourth mating end face are ≥0.1 and Ra≤0.3.

[0035] The above technical solution has the following advantages or beneficial effects: the gloss level of the third and fourth mating end faces is moderate, and the sealing strip is a silicone part, so the glossy silicone surface of the fourth mating end face is sticky and adheres to the third mating end face of the cover. When the cover is opened, it can effectively prevent the joint between the third and fourth mating end faces from being subjected to tension and causing a gap, thereby improving the connection reliability between the sealing strip and the cover.

[0036] In some embodiments, a refrigerator is provided, comprising:

[0037] The box has internal storage space.

[0038] The door, connected to the housing, is configured to close or open the storage space;

[0039] The refrigerator also includes a vacuum food storage container as described above.

[0040] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0041] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a structural diagram of a refrigerator according to some embodiments;

[0043] Figure 2 This is a structural diagram of some vacuum food storage containers according to embodiments;

[0044] Figure 3 An exploded view of a vacuum food storage container according to some embodiments;

[0045] Figure 4 This is a structural diagram of a sealing strip according to some embodiments;

[0046] Figure 5 This is yet another structural diagram of a sealing strip according to some embodiments;

[0047] Figure 6 A cross-sectional view of a vacuum food storage container according to some embodiments;

[0048] Figure 7 for Figure 6 Enlarged view of section A in the middle;

[0049] Figure 8 This is a partial cross-sectional view of a sealing strip according to some embodiments;

[0050] Figure 9 This is a partial cross-sectional view of the cover according to some embodiments;

[0051] Figure 10 for Figure 6 Enlarged view of section B in the middle.

[0052] Figure label:

[0053] 100. Refrigerator; 110. Cabinet; 120. Door; 130. Shelf; 140. Vacuum fitting;

[0054] 200. Vacuum food storage container;

[0055] 210. Box body; 211. Circumferential wall; 212. Mounting port;

[0056] 220. Cover; 221. Vacuum interface; 222. First insertion part; 2221. First slot; 223. First wall; 224. Second wall; 225. Third wall; 226. First mating end face; 227. Third mating end face;

[0057] 230. Sealing strip; 231. Horizontal part; 232. Vertical part; 233. Second insertion part; 2331. Second insertion strip; 2232. Second slot; 234. Second mating end face; 235. Fourth mating end face; 236. Fifth mating surface; 238. Flanged part; 239. Gap;

[0058] 240. Storage compartment;

[0059] 250. Air valve; 251. Main body; 252. First transverse part; 253. Second transverse part; 254. Sixth mating surface; 255. Seventh mating surface. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0061] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0062] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0063] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0066] In some embodiments, a refrigerator 100 is provided, with reference to... Figure 1 The refrigerator 100 includes a cabinet 110, and the cabinet 110 has a storage space inside.

[0067] The refrigerator 100 also includes a door 120, which is connected to the cabinet 110, for example, by a hinge, and the door 120 is configured to close or open the storage space.

[0068] Refrigerator 100 is a refrigerator with vacuum preservation function, which is achieved through vacuum preservation box 200. Figure 2 This is a structural diagram of a vacuum food storage container 200. Figure 3 An exploded view of a vacuum food storage container 200. Figure 6 This is a cross-sectional view of a vacuum food storage container 200.

[0069] In some embodiments, the vacuum food storage container 200 is detachably connected to the door 120. For example, the inner liner of the vacuum food storage container 200 is detachably connected to the door 120, which makes it easier to remove the vacuum food storage container 200 from the door 120 and improves the ease of use of the vacuum food storage container 200.

[0070] In some embodiments, the inner liner of the door 120 is provided with a shelf 130, and the vacuum food storage container 200 is placed directly in the shelf 130, realizing a detachable connection between the vacuum food storage container 200 and the inner liner of the door 120. When it is necessary to remove the vacuum food storage container 200 from the refrigerator 100, the vacuum food storage container 200 can be directly removed from the shelf 130.

[0071] In some embodiments, the vacuum food storage container 200 includes a container body 210, within which a storage cavity 240 is formed. The top of the storage cavity is open.

[0072] The vacuum food storage container 200 also includes a lid 220, which is detachably disposed on the top of the container body 210 and is configured to close or open the storage cavity 240.

[0073] In some embodiments, the refrigerator 100 includes a vacuum assembly. The cover 220 is provided with a vacuum interface 221, which is used to cooperate with the vacuum assembly to facilitate communication between the vacuum assembly and the storage cavity 240 and to evacuate the storage cavity 240.

[0074] The vacuum assembly can bring the vacuum food storage container 200 into a low-pressure state, thereby improving the preservation of the items stored in the vacuum food storage container 200.

[0075] In some embodiments, the vacuum assembly includes a vacuum pump. The vacuum assembly includes a vacuum line. The vacuum assembly includes a vacuum connector 140. The vacuum line connects the vacuum pump and the vacuum connector 140, which is detachably connected to the vacuum interface 221. The vacuum pump provides vacuum power to the entire vacuum assembly.

[0076] The vacuum connector 140 is flipped onto the door body 120, for example, on the inner liner of the door body 120, and the vacuum connector 140 can communicate with the storage cavity 240.

[0077] When it is necessary to evacuate the storage cavity 240, connect the vacuum connector 140 to the storage cavity 240, that is, connect the vacuum connector 140 to the vacuum interface 221. At this time, start the vacuum pump, and the gas in the storage cavity 240 can be discharged through the vacuum connector 140 and the vacuum pipeline to the vacuum pump, so as to achieve low pressure in the storage cavity 240.

[0078] When it is necessary to remove the vacuum food storage container 200 from the door 120, simply flip the vacuum connector 140 to separate it from the vacuum food storage container 200, that is, separate the vacuum connector 140 from the vacuum interface 221.

[0079] The vacuum connector 140 is flipped up and down on the inner liner of the door. Depending on whether the vacuum food storage box 200 needs to be vacuumed, the vacuum connector 140 can be flipped up or down. It is easy to operate and use.

[0080] In some embodiments, the vacuum food storage container 200 further includes a sealing strip 230, which is sealed to the lid 220. When the lid 220 is fastened to the container body 210, the sealing strip 230 is also sealed to the container body 210. Thus, the sealing strip 230 achieves a seal at the fastening point between the lid 220 and the container body 210, improving the sealing performance of the vacuum food storage container 200. Figure 4 This is a structural diagram of the sealing strip 230 viewed from the top side. Figure 5 This is a structural diagram of the sealing strip 230 viewed from the bottom side. Figure 8 This is a partial cross-sectional view of the sealing strip 230.

[0081] In some embodiments, Figure 9This is a partial cross-sectional view of the cover 220. The cover 220 has a first insertion portion 222 on the side facing the box body 210, and the first insertion portion 222 is arranged around the cover 220. The first insertion portion 222 has a first mating end face 226.

[0082] Reference Figure 7 and Figure 8 The sealing strip 230 has a wrap-around structure and a second insertion part 233 is provided on the sealing strip 230. The first insertion part 222 is inserted into the second insertion part 233 to achieve the fixed installation of the sealing strip 230 on the cover 220.

[0083] The second insertion portion 233 has a second mating end face 234, and a first mating end face 226 abuts against the first mating end face 226. The abutting direction of the first mating end face 226 is perpendicular to the insertion direction of the first insertion portion 222 and the second insertion portion 233.

[0084] In other words, the sealing strip 230 is fixed to the cover 220 by inserting it vertically, the first insertion part 222 and the second insertion part 233 are inserted vertically, and the first mating end face 226 extends horizontally, and the second mating end face 234 also extends horizontally.

[0085] Thus, after the first insertion part 222 and the second insertion part 233 are inserted vertically, the first mating end face 226 and the second mating end face 234 are tightly attached to each other, avoiding gaps between the sealing strip 230 and the cover 220, which helps to improve the connection reliability between the sealing strip 230 and the cover 220.

[0086] In some embodiments, the lid 220 is made of plastic and the sealing strip 230 is made of silicone. The elastic deformation of the silicone helps to improve the connection reliability between the sealing strip 230 and the lid 220, as well as the sealing performance of the vacuum food storage box 200.

[0087] In some embodiments, the first mating end face 226 is a glossy surface with a roughness value Ra ≥ 0.1. The second mating end face 234 is also a glossy surface with a roughness value Ra ≥ 0.1. This avoids the first mating end face 226 and the second mating end face 234 having too low a gloss level, because the mold is not durable during the production process, and substances from the silicone vulcanization process can easily adhere to the mold.

[0088] In some embodiments, the first mating end face 226 is a bright surface with a roughness value Ra ≤ 0.3. The second mating end face 234 is also a bright surface with a roughness value Ra ≤ 0.3. This avoids excessive brightness on the first mating end face 226 and the second mating end face 234, which would reduce the sealing effect.

[0089] In some embodiments, the first mating end face 226 and the second mating end face 234 are both glossy surfaces. The roughness value Ra of the first mating end face 226 is ≥0.1 and Ra≤0.3, and the roughness value Ra of the second mating end face 234 is ≥0.1 and Ra≤0.3. This results in a moderate gloss level for both the first and second mating end faces 226. Since the sealing strip 230 is made of silicone, the glossy silicone surface of the second mating end face 234 is adhesive, allowing it to adhere to the first mating end face 226 of the cover 220. This effectively prevents gaps from forming at the mating point of the first and second mating end faces 234 when the cover is opened, thus improving the reliability of the connection between the sealing strip 230 and the cover 220.

[0090] In some embodiments, refer to Figure 9 The first insertion portion 222 includes a plurality of first slots 2221. For example, the first insertion portion 222 includes two first slots 2221. The cover 220 is provided with a first wall 223, a second wall 224, and a third wall 225 arranged at intervals, with the first wall 223 located on the outer side, the second wall 224 located on the inner side, and the third wall 225 located in the middle. The first wall 223 and the third wall 225 form the outer first slot 2221, and the second wall 224 and the third wall 225 form the inner first slot 2221. The third wall 225 is the partition wall between two adjacent first slots 2221.

[0091] Reference Figure 8 The second plug-in portion 233 includes a plurality of second plugs 2331, and a second slot 2232 is formed between two adjacent second plugs 2331. For example, the second plug-in portion 233 includes two second plugs 2331, and a second slot 2232 is formed between two adjacent second plugs 2331.

[0092] Reference Figure 7 The second insert 2331 is inserted into the corresponding first slot 2221, and the partition wall between two adjacent first slots 2221 is inserted into the corresponding second slot 2232.

[0093] The depth of the first slot 2221 is greater than the depth of the second slot 2232, so that the sealing strip 230 can be fully and reliably inserted into the cover 220, thereby improving the insertion reliability of the two.

[0094] In some embodiments, the sealing strip 230 has a transverse portion 231 that extends horizontally. A first insertion portion 222 is provided on the transverse portion 231. In other words, a second insertion strip 2331 is provided on the transverse portion 231. A second mating end face 234 is formed on the transverse portion 231 and is located on the outer side of the second insertion strip 2331.

[0095] The first insertion part 222 has a first wall 223, which forms the side wall of the first slot 2221 located on the outside, and the end of the first wall 223 forms a first mating end face 226.

[0096] Reference Figure 7 The box body 210 includes a circumferential wall 211, and the mating positions of the first mating end face 226 and the second mating end face 234 are located directly above the circumferential wall 211.

[0097] Thus, when the cover 220 and the box 210 are pressed together by external forces such as buckles, the cover 220 moves down as a whole, and the transverse portion 231 located between the first wall 223 and the circumferential wall 211 of the box 210 is squeezed by force, and the first mating end face 226 and the second mating end face 234 are tightly attached to each other, enhancing the sealing effect.

[0098] In some embodiments, the first insertion portion 222 has a second wall 224, which forms a sidewall of the first slot 2221 located inside.

[0099] The sealing strip 230 includes a vertical portion 232, and the vertical portion 232, the inner second insert 2331, and the second wall 224 are abutted together. The vertical portion 232 and the inner second insert 2331 extend vertically, forming a vertical wall of the sealing strip 230 as a whole. The outer surface of this vertical wall is designated as the fifth mating surface 236, which abuts against the second wall 224. That is, the mating surface where the vertical portion 232, the inner second insert 2331, and the second wall 224 abut is the fifth mating surface 236. The fifth mating surface 236 has a relatively large abutment area against the second wall 224, which helps to improve the reliability of the connection between the sealing strip 230 and the cover 220.

[0100] In some embodiments, the roughness value Ra of the fifth mating surface 236 is ≥0.4, and the fifth mating surface 236 is a matte surface to avoid the fifth mating surface 236 being too rough and adsorbing with the second wall 224. The adsorption force will affect the insertion and installation of the sealing strip 230 onto the cover 220, making it inconvenient for the sealing strip 230 to be inserted into the cover 220.

[0101] In some embodiments, the roughness value Ra of the fifth mating surface 236 is ≤1.6, and the fifth mating surface 236 is a matte surface to avoid excessive roughness of the fifth mating surface 236, which would generate excessive friction. Excessive friction would affect the insertion and installation of the sealing strip 230 onto the cover 220, making it difficult for the sealing strip 230 to be inserted into the cover 220.

[0102] In some embodiments, the roughness value Ra of the fifth mating surface 236 is ≥0.4 and Ra≤1.6. The fifth mating surface 236 is a matte surface, which avoids excessive friction between the sealing strip 230 and the second wall 224 during installation, preventing the sealing strip 230 from being installed. It also avoids the formation of an adsorption force between the sealing strip 230 and the second wall 224 during installation, preventing the sealing strip 230 from being installed.

[0103] In some embodiments, the vertical portion 232 is provided with a flange portion 238 on the side facing the circumferential wall 211 of the housing 210. The flange portion 238 extends obliquely upward from the vertical portion 232 toward the side close to the circumferential wall 211 and abuts against the circumferential wall 211.

[0104] One of the functions of the flange 238 is that when the cover 220 and the box 210 are fastened together and the vacuuming begins, the pressure difference between the storage cavity 240 and the outside atmosphere is not very large. The outside atmosphere may seep into the storage cavity 240 through the gap between the horizontal part 231 of the sealing strip 230 and the opening end face of the box 210. Since the flange 238 is in contact with the inner wall of the box, the contact position between the flange 238 and the inner wall of the box is equivalent to forming a seal, preventing the outside atmosphere from seeping in, thereby helping to improve the efficiency of vacuuming.

[0105] Another function of the flanged portion 238 is that when the vacuuming is finished and the vacuum food storage box 200 is in the process of maintaining low pressure, the sealing strip 230 has two sealing defenses. The first is the sealing contact between the transverse portion 231 of the sealing strip 230 and the opening end face of the box body 210; the second is the contact between the flanged portion 238 and the inner side wall of the box body. Even if a small amount of gas seeps in through the opening end face of the box body, it will be blocked by the flanged portion 238 and cannot enter the storage cavity 240, thereby improving the sealing effect of the vacuum food storage box 200.

[0106] In some embodiments, the interference between the flange 238 and the circumferential wall 211 is greater than or equal to 1 mm to avoid the interference being too small and thus reducing the sealing effect.

[0107] In some embodiments, the interference between the flange 238 and the circumferential wall 211 is less than or equal to 1.5 mm to avoid excessive interference increasing friction and making it difficult to open the cover 220.

[0108] In some embodiments, the interference between the flange 238 and the circumferential wall 211 is greater than or equal to 1 mm and less than or equal to 1.5 mm, which ensures the sealing effect without affecting the normal opening of the cover 220.

[0109] In some embodiments, there is a gap 239 between the vertical portion 232 and the circumferential wall 211 of the box body 210. The gap 239 is greater than or equal to 1 mm to avoid the gap 239 being too small, which would result in the flange portion 238 having no deformation space and reduce the sealing effect.

[0110] In some embodiments, there is a gap 239 between the vertical part 232 and the circumferential wall 211 of the box body 210. The gap 239 is less than or equal to 2mm to avoid the cover body 220 from shaking left and right due to excessive gap 239, which would make it easy to fail after vacuuming deformation.

[0111] In some embodiments, there is a gap 239 between the vertical part 232 and the circumferential wall 211 of the box body 210. The gap 239 is greater than or equal to 1 mm and less than or equal to 2 mm. While ensuring the sealing effect, it also prevents the cover body 220 from shaking from side to side and causing deformation failure after vacuuming.

[0112] In some embodiments, a third mating end face 227 is formed at the end of the partition wall (i.e., the third wall 225 mentioned above), and a fourth mating end face 235 is formed at the bottom of the second slot 2232. The third mating end face 227 and the fourth mating end face 235 are in contact, thereby improving the connection reliability between the sealing strip 230 and the cover 220.

[0113] In some embodiments, the third mating end face 227 is a glossy surface with a roughness value Ra ≥ 0.1. The fourth mating end face 235 is also a glossy surface with a roughness value Ra ≥ 0.1. This avoids the third mating end face 227 and the fourth mating end face 235 having too low a gloss level, because the mold is not durable during the production process, and substances from the silicone vulcanization molding process can easily adhere to the mold.

[0114] In some embodiments, the third mating end face 227 is a bright surface with a roughness value Ra ≤ 0.3. The fourth mating end face 235 is also a bright surface with a roughness value Ra ≤ 0.3. This avoids excessive brightness on the third and fourth mating end faces 227 and 235, which would reduce the sealing effect.

[0115] In some embodiments, the third mating end face 227 and the fourth mating end face 235 are both glossy surfaces. The roughness values ​​Ra of the third mating end face 227 are ≥0.1 and Ra≤0.3, and the roughness values ​​Ra of the fourth mating end face 235 are ≥0.1 and Ra≤0.3. This results in a moderate gloss level for both the third and fourth mating end faces 227. Since the sealing strip 230 is made of silicone, the glossy silicone surface of the fourth mating end face 235 is adhesive, allowing it to adhere to the third mating end face 227 of the cover 220. This effectively prevents gaps from appearing due to tension at the mating point of the third and fourth mating end faces 235 when the cover is opened, thus improving the reliability of the connection between the sealing strip 230 and the cover 220.

[0116] In some embodiments, refer to Figure 8 The side of the flange 238 that is away from the gap 239 has a matte finish to prevent dust from getting in.

[0117] In some embodiments, refer to Figure 8 The side of the vertical part 232 facing the circumferential wall 211 of the box body 210 has a matte finish to prevent dust from getting on it.

[0118] In some embodiments, refer to Figure 10 The cover 220 is provided with an installation port 212. The cover 220 is provided with an air valve 250, which is installed in the installation port 212.

[0119] The air valve 250 includes a main body 251, a first transverse portion 252 at the top of the main body 251, and a second transverse portion 253 at the bottom of the main body 251. The main body 251 passes through a mounting port 212, with the first transverse portion 252 located above the mounting port 212 and the second transverse portion 253 located below the mounting port 212, thus enabling the air valve 250 to be installed at the mounting port 212. The air valve 250 can move up and down along the mounting port 212. During vacuuming, the air valve 250 is pulled up by its own elasticity to complete the vacuuming process.

[0120] In some embodiments, the first transverse portion 252 has a sixth mating surface 254 on the side facing the cover 220, and the sixth mating surface 254 has a zero-gap fit with the surface of the cover 220.

[0121] The second transverse portion 253 has a seventh mating surface 255 on the side facing the cover 220, and the seventh mating surface 255 and the surface of the cover 220 are in a zero-gap fit.

[0122] When the vacuum food storage container 200 is closed, the external gas is discharged by utilizing the elasticity of the air valve 250. The zero-gap fit can be that the theoretical gap is designed to be 0, or the air valve 250 has been stretched after installation, with a stretch of ≤0.4mm. If the stretch is too large, the vacuum pump of household equipment may not be able to lift the air valve 250 and stretch it to complete the vacuuming.

[0123] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0124] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A vacuum food storage container, characterized in that, Including: The box has a storage cavity inside; A cover is configured to close or open the storage cavity, and the cover is provided with a first insertion part, the first insertion part having a first mating end face; A sealing strip, wherein a second insertion part is provided on the sealing strip, the first insertion part is inserted into the second insertion part, the second insertion part has a second mating end face, the first mating end face abuts against the second mating end face, and the sealing strip is a silicone part; Wherein, the contact direction of the first mating end face and the second mating end face is perpendicular to the insertion direction of the first insertion part and the second insertion part, and the roughness values ​​Ra of the first mating end face and the second mating end face are ≥0.1 and Ra≤0.

3.

2. The vacuum food storage container according to claim 1, characterized in that, The first plug-in part includes a plurality of first slots, and the second plug-in part includes a plurality of second inserts. A second slot is formed between two adjacent second inserts. The second insert is inserted into the corresponding first slot, and the partition wall between two adjacent first slots is inserted into the corresponding second slot. The box body includes a circumferential wall, and the mating position of the first mating end face and the second mating end face is located directly above the circumferential wall.

3. The vacuum food storage container according to claim 2, characterized in that, The first insertion portion has a first wall, which forms a side wall of the first slot located on the outside, and the end of the first wall forms the first mating end face; The sealing strip includes a transverse portion, on which a plurality of second inserts are provided, and the second mating end face is formed on the transverse portion and located on the outer side of the second insert.

4. The vacuum food storage container according to claim 3, characterized in that, The first insertion portion has a second wall, which forms the side wall of the first slot located on the inside; The sealing strip includes a vertical portion, and the vertical portion and the second insert located on the inner side are in contact with the second wall.

5. The vacuum food storage container according to claim 4, characterized in that, The vertical portion has a flange on one side facing the circumferential wall of the box body. The flange extends obliquely upward from the vertical portion toward the side close to the circumferential wall and is in contact with the circumferential wall.

6. The vacuum food storage container according to claim 5, characterized in that, The interference between the flange and the circumferential wall is greater than or equal to 1 mm and less than or equal to 1.5 mm.

7. The vacuum food storage container according to claim 4, characterized in that, There is a gap between the vertical part and the circumferential wall of the box body, the gap being greater than or equal to 1 mm and less than or equal to 2 mm.

8. The vacuum food storage container according to claim 4, characterized in that, The roughness value Ra of the mating surface between the vertical part, the second insert located on the inner side, and the second wall is Ra≥0.4 and Ra≤1.

6.

9. The vacuum food storage container according to any one of claims 2 to 8, characterized in that, The end of the partition wall is formed with a third mating end face, and the bottom of the second slot is formed with a fourth mating end face. The third mating end face and the fourth mating end face are in contact with each other. The roughness values ​​Ra of the third mating end face and the fourth mating end face are ≥0.1 and Ra≤0.

3.

10. A refrigerator, comprising: The box has internal storage space. The door, connected to the housing, is configured to close or open the storage space; Its features are, The refrigerator also includes a vacuum food storage container as described in any one of claims 1 to 9.

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