Low-pressure fresh-keeping container and low-temperature fresh-keeping equipment

Abstract

The utility model relates to the technical field of low-temperature fresh-keeping, and particularly discloses a low-pressure fresh-keeping container and low-temperature fresh-keeping equipment, the low-pressure fresh-keeping container comprises a barrel body and a panel, the barrel body is provided with a storage cavity with an opening in the front, and the periphery of the opening of the barrel body is provided with a first lap joint part; the panel is provided with an opening position for opening the opening and a closing position for closing the opening, the panel is provided with a second lap joint part, and the second lap joint part is configured to provide support for the first lap joint part in the radial direction of the opening at the closing position and is used for limiting inward deformation of the periphery of the opening. According to the low-pressure fresh-keeping container provided by the embodiment of the utility model, the first lap joint part is matched with the second lap joint part, so that the inward deformation of the periphery of the opening can be limited, and the structural strength and the sealing performance of the low-pressure fresh-keeping container are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature fresh-keeping, in particular to a low-pressure fresh-keeping container and low-temperature fresh-keeping equipment. Background Art

[0002] Vacuum containers use vacuum technology to extend the shelf life of food. By evacuating the air inside the container, the oxygen content is reduced, thereby inhibiting the growth and reproduction of microorganisms and improving the preservation effect of food. When the air inside the vacuum container is extracted, a pressure difference occurs between the inside and outside of the vacuum container, which can easily cause the container to deform and affect the sealing effect. Utility Model Content

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the present invention is to provide a low-pressure fresh-keeping container that can reduce the deformation of the barrel.

[0004] Another object of the present invention is to provide a low-temperature fresh-keeping device, comprising the aforementioned low-pressure fresh-keeping container.

[0005] According to an embodiment of the utility model, the low-pressure fresh-keeping container includes: a barrel body and a panel, the barrel body has a storage cavity with a front opening, and the periphery of the opening of the barrel body is provided with a first overlapping portion; the panel has an open position for opening the opening and a closed position for closing the opening, and the panel is provided with a second overlapping portion, and the second overlapping portion is configured to provide support for the first overlapping portion along the radial direction of the opening in the closed position, so as to limit the inward deformation of the periphery of the opening.

[0006] According to the low-pressure fresh-keeping container of the embodiment of the present invention, the cooperation of the first overlapping portion and the second overlapping portion can limit the inward deformation of the opening periphery, thereby improving the structural strength and sealing performance of the low-pressure fresh-keeping container.

[0007] The low-pressure fresh-keeping container according to the above embodiment of the utility model may also have the following additional technical features:

[0008] In some embodiments, the first overlapping portion has a first mating surface, the second overlapping portion has a second mating surface, the first mating surface and the second mating surface are opposite to each other along the radial direction in the closed position, and the first mating surface is arranged outside the second mating surface, wherein at least one of the first mating surface and the second mating surface is arranged to be inclined toward the center of the opening along the direction from front to back.

[0009] In some embodiments, the panel and / or the barrel body is provided with a seal, which is located between the panel and the barrel body in the closed position, and the overlapping structure of the first overlapping portion and the second overlapping portion in the closed position is located on the outside of the seal.

[0010] In some embodiments, the opening periphery is configured as the first overlapping portion, and the second overlapping portion is disposed on the inner side of the first overlapping portion in the closed position.

[0011] In some embodiments, the first overlapping portion is configured as a ring shape surrounding the opening; or, the first overlapping portion includes multiple parts distributed around the opening; or, the second overlapping portion is configured as an annular protrusion extending along the circumference of the opening; or, the second overlapping portion is configured as multiple protrusions distributed along the circumference of the opening; or, the second overlapping portion is configured as a boss shape.

[0012] In some embodiments, the periphery of the panel extends beyond the outer side surface of the second overlapping portion and is opposite to the periphery of the opening along the front-to-back direction in the closed position.

[0013] In some embodiments, the first overlapping portion is provided on the front surface of the opening periphery, and there is a gap between the first overlapping portion and the front edge of the inner side surface of the opening, and the second overlapping portion is provided on the inner side of the first overlapping portion in the closed position.

[0014] In some embodiments, the first overlapping portion includes a first supporting portion, which is provided on the front surface of the opening top wall and is configured as a long strip extending along the left-right direction; or, the first overlapping portion includes a second supporting portion, which is provided on the front surface of the opening bottom wall and is configured as a long strip extending along the left-right direction; or, the first overlapping portion includes a third supporting portion, which is provided in a middle area of ​​the front surface of the opening top wall along the left-right direction; or, the first overlapping portion includes a fourth supporting portion, which is provided in a middle area of ​​the front surface of the opening bottom wall along the left-right direction.

[0015] In some embodiments, the periphery of the panel extends beyond the outer side of the second overlapping portion and is opposite to the first overlapping portion along the front-to-back direction in the closed position.

[0016] In some embodiments, one of the first overlapping portion and the second overlapping portion includes a first positioning column provided at the periphery of the opening, and the other is provided with a first positioning groove, and the first positioning column passes through the first positioning groove.

[0017] In some embodiments, the barrel body is an integrated barrel body structure; or, the barrel body includes an upper half and a lower half, and the upper half and the lower half are connected and bonded or welded.

[0018] In some embodiments, the fresh-keeping container further includes a drawer, the drawer is arranged through the storage cavity and connected to the panel, and a storage cavity is provided in the drawer;

[0019] And / or, the barrel body is provided with an air extraction port for connecting to an air extraction device, and the air extraction port is connected to the storage cavity;

[0020] And / or, the fresh-keeping container further includes an air extraction component, and the air extraction component is connected to the storage cavity.

[0021] According to the embodiment of the present invention, the low-temperature fresh-keeping device includes: a body, a refrigeration device and the aforementioned low-pressure fresh-keeping container, the body is provided with a refrigeration compartment; the refrigeration device is provided in the body for cooling the refrigeration compartment; the low-pressure fresh-keeping container is provided in the refrigeration compartment.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the barrel body of the low-pressure fresh-keeping container according to an embodiment of the present utility model.

[0024] Figure 2 It is a structural schematic diagram of a low-pressure fresh-keeping container according to an embodiment of the present utility model.

[0025] Figure 3 It is along Figure 2 Cross-sectional view along line AA.

[0026] Figure 4 yes Figure 3 Enlarged schematic diagram of point B in the middle circle.

[0027] Figure 5 It is a schematic cross-sectional view of a low-pressure fresh-keeping container according to an embodiment of the present utility model.

[0028] Figure 6 It is a schematic diagram of a low-pressure fresh-keeping container according to an embodiment of the present utility model.

[0029] Figure 7 It is a schematic cross-sectional view of a low-pressure fresh-keeping container according to an embodiment of the present utility model.

[0030] Figure 8 It is a schematic cross-sectional view of a low-pressure fresh-keeping container according to an embodiment of the present utility model.

[0031] Figure 9 Schematic diagram of a low-pressure fresh-keeping container according to an embodiment of the present invention, wherein the panel is in the open position.

[0032] Figure 10 It is a schematic diagram of a low-pressure fresh-keeping container according to an embodiment of the present utility model.

[0033] Reference numerals:

[0034] Low-pressure fresh-keeping container 100, barrel body 10, opening 11, first overlapping portion 12, first mating surface 121, first supporting portion 122, first positioning column 123, air extraction port 13, panel 20, second overlapping portion 21, second mating surface 211, first positioning groove 212, sealing member 30, drawer 40, storage cavity 41, air extraction assembly 50. DETAILED DESCRIPTION

[0035] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] Combine Figures 1 to 3 According to an embodiment of the utility model, the low-pressure fresh-keeping container 100 includes: a barrel body 10 and a panel 20. The barrel body 10 has a storage cavity with a front opening 11. The panel 20 has an open position for opening the opening 11 and a closed position for closing the opening 11. Specifically, when the panel 20 is in the open position, the storage medium can be loaded into the low-pressure fresh-keeping container 100 through the opening 11. When the panel 20 is in the closed position, the opening 11 can be closed and the opening 11 can be sealed by the panel 20. Exemplarily, the low-pressure fresh-keeping container 100 is provided with an exhaust port 13 for connecting to an exhaust device, and the exhaust port 13 is connected to the storage cavity. The gas in the storage cavity can be extracted through the exhaust port 13, so that the storage cavity maintains a low-pressure and low-oxygen state, thereby maintaining the freshness of the storage medium.

[0037] Among them, the first overlapping portion 12 is provided on the periphery of the opening 11 of the barrel body 10, and the second overlapping portion 21 is provided on the panel 20. The second overlapping portion 21 is configured to provide support for the first overlapping portion 12 in the radial direction of the opening 11 in the closed position, so as to limit the inward deformation of the periphery of the opening 11. It is understandable that when the air in the low-pressure fresh-keeping container 100 is extracted, a pressure difference is generated between the inside and outside of the barrel body 10, so that the barrel body 10, especially the position of the opening 11, is subjected to pressure from the outside to the inside in the radial direction. By providing the second overlapping portion 21 to provide support for the first overlapping portion 12, the inward deformation of the periphery of the opening 11 can be limited, thereby improving the structural strength and sealing performance of the low-pressure fresh-keeping container 100.

[0038] According to the low-pressure fresh-keeping container 100 of the embodiment of the present invention, the first overlapping portion 12 and the second overlapping portion 21 cooperate to limit the inward deformation of the periphery of the opening 11, thereby improving the structural strength and sealing performance of the low-pressure fresh-keeping container 100.

[0039] It should be noted that the barrel body 10 can be provided in different shapes, for example, a cylindrical barrel, a polygonal barrel, a square barrel, etc., and the shape of the panel 20 can be adapted to the barrel body 10. The radial direction along the opening 11 is the direction extending from the center position of the barrel body 10 to the periphery.

[0040] The first overlapping portion 12 can be arranged at different positions around the opening 11. For example, the barrel body 10 can be a square barrel, wherein the upper and lower edges of the opening 11 can be provided with the first overlapping portion 12; or, the left and right edges of the opening 11 can be provided with the first overlapping portion 12; or, the upper, lower, left and right edges of the opening 11 are all provided with the first overlapping portion 12, and the second overlapping portion 21 is arranged corresponding to the first overlapping portion 12.

[0041] In addition, the first overlap portion 12 and the second overlap portion 21 can be arranged into different structures. For example, the first overlap portion 12 and the second overlap portion 21 can be inclined supports; or, one of the first overlap portion 12 and the second overlap portion 21 can include a positioning column, and the other can include a positioning groove, and the positioning column can be arranged in the positioning groove.

[0042] Combine Figure 4 In some embodiments of the present invention, the first overlapping portion 12 has a first mating surface 121, and the second overlapping portion 21 has a second mating surface 211. In the closed position, the first mating surface 121 and the second mating surface 211 are radially opposed, with the first mating surface 121 positioned outboard of the second mating surface 211. At least one of the first mating surface 121 and the second mating surface 211 is inclined from front to back toward the center of the opening 11. By configuring the first mating surface 121 or the second mating surface 211 as an inclined surface, pressure on the opening 11 can be dispersed, reducing the pressure on the first mating surface 121 or the second mating surface 211, preventing deformation of the opening 11, and improving the structural strength of the low-pressure fresh-keeping container 100.

[0043] Combine Figure 5 In some embodiments of the present invention, the panel 20 and / or the barrel body 10 are provided with a seal 30. Specifically, the panel 20 may be provided with a seal 30; or the barrel body 10 may be provided with a seal 30; or both the panel 20 and the barrel body 10 are provided with a seal 30. The seal 30 is located between the panel 20 and the barrel body 10 in the closed position, and the overlapping structure of the first overlapping portion 12 and the second overlapping portion 21 in the closed position is located outside the seal 30. Specifically, when the panel 20 is in the closed position, the first overlapping portion 12 and the second overlapping portion 21 form an overlapping structure, which can reduce the deformation of the barrel body 10 when the vacuum is drawn. The seal 30 is provided on the inner side of the overlapping structure, which can seal the gap between the barrel body 10 and the panel 20, thereby improving the sealing effect of the low-pressure fresh-keeping container 100, and thereby improving the fresh-keeping effect of the low-pressure fresh-keeping container 100.

[0044] In some embodiments of the present invention, the periphery of the opening 11 is constructed as a first overlapping portion 12, and the second overlapping portion 21 is arranged on the inner side of the first overlapping portion 12 in the closed position, simplifying the structure of the first overlapping portion 12 and the second overlapping portion 21, and the second overlapping portion 21 can effectively support the first overlapping portion 12, thereby effectively limiting the inward deformation of the periphery of the opening 11.

[0045] In some embodiments of the present invention, the first overlapping portion 12 is configured as an annular shape surrounding the opening 11. The annular shape may be a circular ring, a square ring, etc., and may be adjusted according to the shape of the barrel body 10. By providing an annular structure, the support effect at the opening 11 is improved. Alternatively, the first overlapping portion 12 includes multiple portions distributed around the opening 11. The multiple portions can disperse pressure and facilitate improved support for the opening 11.

[0046] In some embodiments of the present invention, the second overlapping portion 21 is configured as an annular protrusion extending along the circumference of the opening 11. The annular protrusion may be a circular annular protrusion, a square annular protrusion, etc., and may be adjusted according to the shape of the barrel body 10. When the panel 20 closes the opening 11, the annular protrusion cooperates with the first overlapping portion 12 to effectively support part of the opening 11, preventing deformation of the barrel body 10 and thereby improving the sealing effect of the low-pressure fresh-keeping container 100. Alternatively, the second overlapping portion 21 may be configured as multiple protrusions distributed along the circumference of the opening 11. The multiple protrusions can disperse pressure and facilitate improved support for the opening 11.

[0047] In some embodiments of the present invention, the second overlapping portion 21 is configured as a boss, which can provide support for the first overlapping portion 12 , limit the inward deformation of the periphery of the opening 11 , and enhance the structural strength of the panel 20 .

[0048] In some embodiments of the present invention, the periphery of the panel 20 extends out of the outer side surface of the second overlapping portion 21 and is opposite to the periphery of the opening 11 in the front-to-back direction in the closed position. The panel 20 can be limited when in the closed position, which can improve the matching stability between the panel 20 and the opening 11, and facilitate the matching between the panel 20 and the barrel body 10, thereby improving the sealing effect.

[0049] In some embodiments of the present invention, the first overlapping portion 12 is provided on the front surface of the periphery of the opening 11, and a gap is formed between the first overlapping portion 12 and the front edge of the inner side surface of the opening 11. The second overlapping portion 21 is provided inside the first overlapping portion 12 in the closed position. After the panel 20 closes the opening 11, the second overlapping portion 21 is provided inside the first overlapping portion 12, which can effectively support the first overlapping portion 12, prevent deformation of the opening 11, and enhance the structural strength of the low-pressure fresh-keeping container 100 and the sealing effect.

[0050] For example, the first overlapping portion 12 can protrude from the periphery of the opening 11, and a recess can be provided on the panel 20, which constitutes the second overlapping portion 21; for another example, the front surface of the periphery of the opening 11 can be provided with a groove that is recessed backward, and the groove constitutes the first overlapping portion 12, and the second overlapping portion 21 can protrude from the main body of the panel 20.

[0051] The first overlap portion 12 can be set to different structures and can be set at different positions. The first overlap portion 12 may include a first support portion 122, which is provided on the front surface of the top wall of the opening 11 and is provided in the shape of an elongated strip extending in the left-right direction; or, the first overlap portion 12 includes a second support portion, which is provided on the front surface of the bottom wall of the opening 11 and is provided in the shape of an elongated strip extending in the left-right direction; or, the first overlap portion 12 includes a third support portion, which is provided in the middle area of ​​the front surface of the top wall of the opening 11 in the left-right direction; or, the first overlap portion 12 includes a fourth support portion, which is provided in the middle area of ​​the front surface of the bottom wall of the opening 11 in the left-right direction. Simplifying the structure of the first overlap portion 12, the cooperation between the first overlap portion 12 and the second overlap portion 21 can reduce the deformation at the opening 11 on the one hand, and the first overlap portion 12 can also play the role of positioning the panel 20.

[0052] Combine Figure 4 In some embodiments of the present invention, the periphery of the panel 20 extends out of the outer side surface of the second overlapping portion 21 and is opposite to the first overlapping portion 12 in the front-to-back direction in the closed position. The panel 20 can play a limiting role in the closed position, thereby improving the matching stability between the panel 20 and the barrel body 10.

[0053] Combine Figure 7 and Figure 8 In some embodiments of the present invention, one of the first overlapping portion 12 and the second overlapping portion 21 includes a first positioning post 123 provided on the periphery of the opening 11, and the other is provided with a first positioning groove 212, and the first positioning post 123 is passed through the first positioning groove 212. Specifically, the first overlapping portion 12 may include the first positioning post 123 provided on the periphery of the opening 11, and the second overlapping portion 21 may be provided with the first positioning groove 212; or, the first overlapping portion 12 may include the first positioning groove 212 provided on the periphery of the opening 11, and the second overlapping portion 21 may be provided with the first positioning post 123, and the first positioning post 123 is provided in the first positioning groove 212. On the one hand, it can prevent the low-pressure fresh-keeping container 100 from being deformed, and on the other hand, it can play a positioning role, ensuring that the panel 20 can accurately cover the barrel body 10 and improve the sealing performance.

[0054] In some embodiments of the present invention, the barrel body 10 is a one-piece barrel body 10 structure; or, the barrel body 10 includes an upper half and a lower half, which are connected and bonded or welded together. This facilitates the processing and shaping of the barrel body 10 and improves the structural strength of the barrel body 10.

[0055] Combine Figure 9 In some embodiments of the present invention, the low-pressure fresh-keeping container 100 further includes a drawer 40, which is arranged in the storage cavity and is connected to the panel 20. A storage cavity 41 is provided in the drawer 40, and food can be placed in the storage cavity 41. The storage cavity can be opened or closed by pulling out the drawer 40, which is convenient for taking out or storing food. After the drawer 40 is loaded into the storage cavity, the storage cavity can be sealed by the panel 20, so that a stable environment is maintained in the low-pressure fresh-keeping container 100, which is convenient for improving the preservation effect of food.

[0056] Combine Figure 9 In some embodiments of the present invention, the barrel body 10 is provided with an air extraction port 13 for connecting to an air extraction device. The air extraction port 13 communicates with the storage chamber, and the air in the storage chamber can be extracted through the air extraction port 13, thereby maintaining a low-pressure, low-oxygen state in the storage chamber and preserving the freshness of the food. The provision of the aforementioned first overlapping portion 12 and second overlapping portion 21 can reduce deformation of the barrel body 10 caused by air extraction, improve the sealing effect, and enhance the preservation effect.

[0057] Combine Figure 10 In some embodiments of the present invention, the low-pressure fresh-keeping container 100 further includes an exhaust assembly 50, which is connected to the storage chamber. The exhaust assembly 50 is used to generate a negative pressure in the storage chamber. For example, the exhaust assembly 50 may include a vacuum pump and an air pipe, which may be connected to the storage chamber. The exhaust assembly 50 can be used to extract some of the gas in the storage chamber, creating a low-oxygen, low-pressure environment in the storage chamber. By integrating the exhaust assembly 50 into the low-pressure fresh-keeping container 100, operation is facilitated, and the preservation effect of the low-pressure fresh-keeping container 100 is improved.

[0058] The present invention also provides a low-temperature fresh-keeping device, comprising: a body, a refrigeration device, and the aforementioned low-pressure fresh-keeping container 100. The body is provided with a refrigeration compartment; the refrigeration device is provided in the body for cooling the refrigeration compartment; and the low-pressure fresh-keeping container 100 is provided in the refrigeration compartment. The refrigeration device is provided in the body for cooling the refrigeration compartment; and the fresh-keeping device is provided in the refrigeration compartment. By providing the aforementioned low-pressure fresh-keeping container 100, the second overlapping portion 21 provides support for the first overlapping portion 12, preventing deformation of the periphery of the opening 11, improving the structural strength and sealing effect of the low-pressure fresh-keeping container 100, and thereby improving the fresh-keeping effect of the low-temperature fresh-keeping device.

[0059] The various embodiments / implementations of the present invention can be combined with each other without causing any contradiction.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to 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 device or element referred to 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.

[0061] Furthermore, 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0062] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A low-pressure fresh-keeping container (100), characterized in that: include: A barrel body (10), the barrel body (10) having a storage cavity with a front opening (11), and a first overlapping portion (12) is provided around the opening (11) of the barrel body (10); A panel (20) having an open position for opening the opening (11) and a closed position for closing the opening (11), the panel (20) being provided with a second overlapping portion (21), the second overlapping portion (21) being configured to provide support for the first overlapping portion (12) along the radial direction of the opening (11) in the closed position, so as to limit inward deformation of the periphery of the opening (11).

2. The low-pressure fresh-keeping container (100) according to claim 1, characterized in that: The first overlapping portion (12) has a first mating surface (121), and the second overlapping portion (21) has a second mating surface (211), the first mating surface (121) and the second mating surface (211) are opposite to each other along the radial direction in the closed position, and the first mating surface (121) is arranged outside the second mating surface (211), wherein at least one of the first mating surface (121) and the second mating surface (211) is arranged to be inclined toward the center of the opening (11) along the direction from front to back.

3. The low-pressure fresh-keeping container (100) according to claim 1, characterized in that: The panel (20) and / or the barrel body (10) are provided with a sealing member (30), wherein the sealing member (30) is located between the panel (20) and the barrel body (10) in the closed position, and the overlapping structure of the first overlapping portion (12) and the second overlapping portion (21) in the closed position is located outside the sealing member (30).

4. The low-pressure fresh-keeping container (100) according to any one of claims 1 to 3, characterized in that: The periphery of the opening (11) is configured as the first overlapping portion (12), and the second overlapping portion (21) is arranged on the inner side of the first overlapping portion (12) in the closed position.

5. The low-pressure fresh-keeping container (100) according to claim 4, characterized in that: The first overlapping portion (12) is configured as a ring-shaped portion surrounding the opening (11); or the first overlapping portion (12) includes a plurality of portions distributed around the opening (11); or the second overlapping portion (21) is configured as an annular convex portion extending circumferentially along the opening (11); or the second overlapping portion (21) is configured as a plurality of convex portions distributed circumferentially along the opening (11); or the second overlapping portion (21) is configured as a boss-shaped portion.

6. The low-pressure fresh-keeping container (100) according to claim 4, characterized in that: The periphery of the panel (20) extends beyond the outer side surface of the second overlapping portion (21) and is opposite to the periphery of the opening (11) along the front-to-back direction in the closed position.

7. The low-pressure fresh-keeping container (100) according to any one of claims 1 to 3, characterized in that: The first overlapping portion (12) is provided on the front surface of the periphery of the opening (11), and a gap is formed between the first overlapping portion (12) and the front edge of the inner side surface of the opening (11); the second overlapping portion (21) is provided on the inner side of the first overlapping portion (12) in the closed position.

8. The low-pressure fresh-keeping container (100) according to claim 7, characterized in that: The first overlapping portion (12) includes a first supporting portion (122), which is provided on the front surface of the top wall of the opening (11) and is configured as a long strip extending in the left-right direction; or, the first overlapping portion (12) includes a second supporting portion, which is provided on the front surface of the bottom wall of the opening (11) and is configured as a long strip extending in the left-right direction; or, the first overlapping portion (12) includes a third supporting portion, which is provided in the middle area of ​​the front surface of the top wall of the opening (11) in the left-right direction; or, the first overlapping portion (12) includes a fourth supporting portion, which is provided in the middle area of ​​the front surface of the bottom wall of the opening (11) in the left-right direction.

9. The low-pressure fresh-keeping container (100) according to claim 7, characterized in that: The peripheral edge of the panel (20) extends beyond the outer side surface of the second overlapping portion (21) and is opposite to the first overlapping portion (12) along the front-to-back direction in the closed position.

10. The low-pressure fresh-keeping container (100) according to any one of claims 1 to 3, characterized in that: One of the first overlapping portion (12) and the second overlapping portion (21) includes a first positioning column (123) provided on the periphery of the opening (11), and the other is provided with a first positioning groove (212), wherein the first positioning column (123) is passed through the first positioning groove (212).

11. The low-pressure fresh-keeping container (100) according to any one of claims 1 to 3, characterized in that: The barrel body (10) is an integrated barrel body (10) structure; or, the barrel body (10) comprises an upper half and a lower half, and the upper half and the lower half are connected and bonded or welded.

12. The low-pressure fresh-keeping container (100) according to any one of claims 1 to 3, characterized in that: The fresh-keeping container further comprises a drawer (40), the drawer (40) being arranged in the storage cavity and connected to the panel (20), and a storage cavity (41) being arranged in the drawer (40); And / or, the barrel body (10) is provided with an air extraction port (13) for connecting to an air extraction device, and the air extraction port (13) is connected to the storage cavity; And / or, the fresh-keeping container further comprises an air extraction component (50), and the air extraction component (50) is connected to the storage cavity.

13. A low-temperature fresh-keeping device, characterized in that: include: A machine body, wherein the machine body is provided with a refrigeration compartment; A refrigeration device, which is provided in the machine body and is used for cooling the refrigeration compartment; The low-pressure fresh-keeping container (100) according to any one of claims 1 to 12, wherein the low-pressure fresh-keeping container (100) is arranged in the refrigeration compartment.

Images