Vacuum-preserved box

Abstract

The utility model relates to the technical field of preservation box, especially vacuum preservation box, including preservation box and vacuumizing device. The preservation box includes box body and upper cover, and the upper cover has annular recessed structure with top opening, and the opening forms sealing mating surface. The diameter of the radial projection profile line of the sealing mating surface gradually reduces along the gravity direction. The bottom of the annular recessed structure is provided with a movable hole penetrating the upper cover, and a one-way valve is arranged in the movable hole. The bottom of the first annular sealing piece is provided with an annular protrusion. When vacuumizing is needed, the user first places the vacuumizing device vertically or obliquely on the annular recessed structure, so that the annular protrusion annularly abuts against the sealing mating surface. Then the vacuumizing device is started, and under the negative pressure state, the annular protrusion is elastically deformed and pressed against the sealing mating surface under the extrusion of the weight of the vacuumizing device itself. The design can realize reliable sealing without accurate positioning of the vacuumizing device.

Description

Technical Field

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

[0002] Existing vacuum food preservers typically feature a recessed structure on the top lid, with an air extraction channel at the bottom. The lower end of the vacuum device is equipped with an annular seal. During use, this seal is first pressed against the edge of the recessed structure's opening, and then the vacuum device is activated to evacuate the interior of the container, thus achieving a seal. While this design achieves vacuuming, it requires a high degree of precision in the fit between the vacuum device and the food preserver. Before vacuuming, the annular seal must be precisely aligned with the recessed structure; otherwise, misalignment can lead to gaps between the seal and the recessed structure, resulting in seal failure.

[0003] Therefore, the docking sealing structure of existing vacuum preservation devices still has problems such as high alignment requirements and inconvenient operation. It is necessary to provide a vacuum preservation solution with more adaptive sealing docking, easier operation and more reliable sealing. Utility Model Content

[0004] In order to address the technical deficiencies mentioned in the background section, the purpose of this utility model is to provide a vacuum-sealed food storage box to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vacuum food storage box, comprising: a food storage box and a vacuum device; The food storage container includes a container body and a top cover. The top cover has an annular recessed structure with a top opening. The opening of the annular recessed structure forms a sealing mating surface, and the diameter of the radial projection contour of the sealing mating surface gradually decreases along the direction of gravity. The bottom of the annular recessed structure has a movable hole that penetrates the wall thickness of the top cover. When the top cover is closed on the container body, the interior of the container body, the movable hole, the annular recessed structure, and the external environment are connected in sequence. A one-way valve is provided in the movable hole, and the top surface of the one-way valve is lower than the edge of the opening of the annular recessed structure. The bottom of the vacuuming device is provided with a first annular seal, the inner diameter of which is larger than the outer diameter of the one-way valve; the bottom of the first annular seal is provided with an annular protrusion; the vacuuming device can be placed on the annular recessed structure in a vertical or inclined position relative to the central axis of the annular recessed structure; when the vacuuming device is placed on the annular recessed structure in the inclined position and activated, the annular protrusion abuts against the sealing mating surface in a ring shape, and the first annular seal presses the annular protrusion under negative pressure so that the annular protrusion is pressed tightly against the sealing mating surface.

[0006] Furthermore, the inner side of the first annular seal is provided with a first hollow structure, which provides radial or axial deformation space for the first annular seal.

[0007] Furthermore, the lower edge of the upper cover is provided with a second annular seal for sealing the box body. The second annular seal has a second hollow structure on its inner side, and the second hollow structure provides axial deformation space for the second annular seal.

[0008] Furthermore, the vacuuming device includes a bottom cover, a housing covered on the bottom cover, a vacuum pump fixed on the bottom cover, a solenoid valve, and a circuit board; The bottom of the cover is provided with an air extraction hole connected to the air pump and a pressure relief hole connected to the solenoid valve; both the air extraction hole and the pressure relief hole are connected to the recessed space of the annular recessed structure. The circuit board is equipped with a control switch, and the operating part of the control switch protrudes from the top of the housing.

[0009] Furthermore, the vacuuming device also includes a battery and a charging interface. The battery is installed on the bottom cover and is electrically connected to the circuit board. The charging interface is installed on the housing and is electrically connected to the circuit board.

[0010] Furthermore, the inner side of the first annular seal is provided with a plurality of arc-shaped protruding segments. Some of the arc-shaped protruding segments are distributed at intervals around the axis of the first annular seal, and some of the arc-shaped protruding segments are distributed at intervals along the radial direction of the first annular seal. The plurality of arc-shaped protruding segments abut against the bottom of the bottom cover to form a gas transmission space together with the bottom cover. The movable hole communicates with the gas transmission space, and the gas transmission space communicates with the suction hole and the pressure relief hole respectively.

[0011] Furthermore, the annular protrusion extends both along the direction of gravity and away from the axis of the first annular seal.

[0012] Furthermore, the minimum inner diameter of the annular protrusion is greater than the maximum outer diameter of the one-way valve, and the maximum outer diameter of the annular protrusion is less than the inner diameter of the sealing mating surface.

[0013] Furthermore, the angle between the projection line of the inner section of the annular protrusion and the axis of the annular protrusion is greater than the angle between the projection line of the outer section of the annular protrusion and the axis of the annular protrusion.

[0014] Furthermore, the bottom of the annular protrusion is an arc surface, and the inner side of the annular protrusion is connected to the outer side of the annular protrusion through the arc surface.

[0015] Beneficial effects: 1. The top cover of this application has an annular recessed structure with a top opening, the opening forming a sealing mating surface. The sealing mating surface has a smoothly transitioned inverted conical surface, allowing objects placed on it to automatically center themselves using gravity without precise alignment. A one-way valve is provided within the movable hole, the top surface of which is lower than the edge of the opening of the annular recessed structure, allowing multiple food storage containers to be stacked vertically and stably after the vacuum device is separated. The bottom of the annular recessed structure has a movable hole penetrating the wall thickness of the top cover. The bottom of the vacuum device has a first annular seal, the inner diameter of which is larger than the outer diameter of the one-way valve. Because the sealing mating surface is a smoothly transitioned inverted conical surface, the first annular seal can abut against the sealing mating surface in a ring shape, covering the one-way valve, regardless of whether the vacuum device is placed vertically or at an angle, thus increasing the placement tolerance of the vacuum device.

[0016] 2. The vacuum device and the recessed space formed by the annular recessed structure create a negative pressure. Under this negative pressure, the first annular seal is compressed by the weight of the vacuum device itself, causing the annular protrusion at its bottom to compress axially and expand radially, thus pressing the annular protrusion against the sealing mating surface. Even if there is a slight deviation during initial placement, the elastic deformation of the annular protrusion can automatically repair the gap, achieving a reliable seal without the need for precise alignment of the vacuum device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the vacuum food storage box according to an embodiment of this application; Figure 2 for Figure 1 The AA-direction section view shown; Figure 3 This is an exploded view of the vacuum-sealed food container according to an embodiment of this application; Figure 4 This is a schematic diagram of the vacuum pumping device according to an embodiment of this application; Figure 5 This is an exploded view of the vacuum pumping device according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the first annular seal in an embodiment of this application; Figure 7 for Figure 2 A magnified view of part A shown.

[0018] Reference numerals: 1. Food storage container; 11. Container body; 12. Top cover; 121. Annular recessed structure; 122. Sealing mating surface; 123. Movable hole; 13. Second annular seal; 131. Second hollow structure; 2. Vacuum device; 21. First annular seal; 211. Annular protrusion; 212. First hollow structure; 213. Arc-shaped protruding segment; 22. Bottom cover; 221. Air extraction hole; 222. Pressure relief hole; 23. Shell; 24. Air pump; 25. Solenoid valve; 26. Circuit board; 27. Control switch; 28. Battery; 29. ​​Charging interface; 3. Gas transmission space; 4. One-way valve; 41. Sealed position; 42. Air passage; 43. Opening position. Detailed Implementation

[0019] 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. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0020] Please refer to the attached document. Figures 1-7 This embodiment discloses a vacuum-sealed food storage box, including: a food storage box 1 and a detachable vacuum device 2.

[0021] The food storage container 1 includes a container body 11 and a top cover 12. The container body 11 is preferably made of transparent glass to facilitate observation of the food inside and for easy cleaning. Alternatively, it can be made of different materials such as plastic, stainless steel, or silicone. The top cover 12 has an annular recessed structure 121 with a top opening. The opening of the annular recessed structure 121 forms a sealing mating surface 122. The diameter of the radial projection contour of the sealing mating surface 122 gradually decreases along the direction of gravity, making the sealing mating surface 122 a smoothly transitioned inverted conical surface. The advantage of this design is that objects placed on it do not need to be precisely centered; they can be automatically centered and guided along the conical surface using gravity.

[0022] The bottom of the annular recessed structure 121 is provided with a movable hole 123; the movable hole 123 connects the annular recessed structure 121 and passes through the bottom of the upper cover 12; when the upper cover 12 is closed on the box body 11, the interior of the box body 11, the movable hole 123, the annular recessed structure 121 and the external environment are connected in sequence, thereby forming a gas transmission path.

[0023] Furthermore, a one-way valve 4 is provided within the movable hole 123. The top surface of the one-way valve 4 is lower than the opening edge of the annular recessed structure 121, allowing multiple food storage containers 1 to be vertically and stably stacked after the vacuum device 2 is separated. Specifically, the one-way valve 4 has a sealing position 41 that closes the movable hole 123, and an opening position 43 that allows the interior of the container 11 to communicate with the outside through the air passage 42 provided on the one-way valve 4 after the one-way valve 4 is lifted. When vacuuming is required, such as... Figure 2 As shown, when the user raises the one-way valve 4 to the open position 43, the interior of the container 11 is connected to the outside through the air passage 42, facilitating air extraction. When vacuuming is not required, the user can press the one-way valve 4 back down to the sealed position 41, closing the movable hole 123. At this time, the food storage container 1 can be used independently without the vacuuming device 2, and the one-way valve 4 provides a basic seal for the food storage container 1. Its structure is simple and its operation is intuitive.

[0024] The vacuum device 2 has a first annular seal 21 at its bottom, the inner diameter of which is larger than the outer diameter of the one-way valve 4. The bottom of the first annular seal 21 has an annular protrusion 211. The vacuum device 2 can be placed on the annular recessed structure 121 in a vertical or inclined position relative to the central axis of the annular recessed structure 121. When the vacuum device 2 is placed on the annular recessed structure 121 in the inclined position and activated, the annular protrusion 211 abuts against the sealing mating surface 122.

[0025] Specifically, since the sealing mating surface 122 is a smoothly transitioned inverted conical surface, the first annular seal 21 can abut against the sealing mating surface 122 in a ring shape, whether the user places the vacuum device 2 vertically or at an angle, so as to cover the one-way valve 4. The placement error tolerance of the vacuum device 2 is higher.

[0026] The annular protrusion 211 may have an elastic constriction structure or an outward flared elastic structure. The purpose of setting the annular protrusion 211 is that when a vacuum is drawn, the annular protrusion 211 deforms itself and bends inward or outward, thereby increasing the contact area with the sealing mating surface 122 and improving the sealing effect.

[0027] like Figures 1 to 4As shown, when vacuuming is required, the user first places the vacuuming device 2 on the top cover 12, so that the first annular seal 21 of the vacuuming device 2 abuts against the sealing mating surface 122. Then, the vacuuming device 2 is activated, and the air extraction component inside the vacuuming device 2 extracts the air from the food storage box 1 and the recessed space of the annular recessed structure 121. The air inside the box 11 passes through the movable hole 123, the annular recessed structure 121, and the inside of the vacuuming device 2 in sequence, and is finally discharged from the external environment through the vacuuming device 2, thus achieving vacuuming. During this process, the recessed space formed by the vacuuming device 2 and the annular recessed structure 121 forms a negative pressure. Under the negative pressure state, the first annular seal 21 is squeezed by the weight of the vacuuming device 2 itself, causing the annular protrusion 211 at its bottom to be compressed axially and expanded radially, thereby pressing the annular protrusion 211 onto the sealing mating surface 122. Even if there is a slight deviation during initial placement, the gap can be automatically repaired by the elastic deformation generated by the annular protrusion 211, and a reliable seal can be achieved without the need for a precise alignment vacuum device 2.

[0028] like Figure 2 and Figure 7 As shown, as a preferred design, the sealing mating surface 122 is connected to the arc-shaped edge of the opening of the annular recessed structure 121 to facilitate a smoother fit with the annular protrusion 211. It should be noted that this occurs when one side of the annular protrusion 211 is tilted to contact the opening edge of the annular recessed structure 121.

[0029] like Figure 2 As shown, the first annular seal 21 further includes a first perforated structure 212 on its inner side, which provides radial or axial deformation space for the first annular seal 21. The first perforated structure 212 is a V-groove, which is annular and formed on the inner side of the first annular seal 21.

[0030] In other embodiments, the first hollow structure 212 may also be a C-shaped groove, a U-shaped groove, or an L-shaped groove. The first hollow structure 212 (such as a V-shaped groove, C-shaped groove, U-shaped groove, or L-shaped groove) provides a preset, structured deformation space for the first annular seal 21. During vacuuming, the remaining components of the vacuuming device 2 compress the first annular seal 21, and the first hollow structure 212 can undergo compression or lateral deformation, causing the first annular seal 21 to press downward against the annular protrusion 211.

[0031] like Figure 2As shown, further, the lower edge of the upper cover 12 is provided with a second annular seal 13 for sealing the box body 11. The second annular seal 13 has a second hollow structure 131 on its inner side, which provides axial deformation space for the second annular seal 13. When used in conjunction with the vacuum device 2, as the air pressure inside the box body 11 decreases, the external atmospheric pressure pushes the upper cover 12 downward, causing the second annular seal 13 to undergo downward axial compression deformation, thereby pressing it more tightly against the upper edge of the box body 11 and achieving a reliable automatic enhanced seal.

[0032] Similarly, the second hollow structure 131 can adopt a V-groove, C-groove, U-groove, or L-groove design. The design of the second hollow structure 131 provides a structured axial compression space for the second annular seal 13, enabling it to produce regular and sufficient deformation under pressure. This allows for efficient adaptive sealing under different usage scenarios (external atmospheric pressure difference or manual fastening), ensuring the overall sealing reliability of the food storage container 1.

[0033] like Figure 2 and Figure 5 As shown, in some embodiments, the vacuuming device 2 includes a bottom cover 22, a housing 23 covering the bottom cover 22, a vacuum pump 24 fixed to the bottom cover 22, a solenoid valve 25, and a circuit board 26. The bottom of the bottom cover 22 is provided with a vacuum hole 221 communicating with the vacuum pump 24 and a pressure relief hole 222 communicating with the solenoid valve 25. Both the vacuum hole 221 and the pressure relief hole 222 are connected to the internal space of the annular recessed structure 121 through the gas transmission space 3. The circuit board 26 is provided with a control switch 27, and the operating part of the control switch 27 protrudes from the top of the housing 23. When the vacuuming device 2 is placed on the annular recessed structure 121 of the top cover 12, and vacuuming is required, the operating part of the control switch 27 is activated to start the vacuum pump 24 to pump air. The air in the box 11 passes through the movable hole 123, the annular recessed structure 121, and the vacuum hole 221 in sequence, and finally enters the vacuum pump 24 to achieve vacuuming. When it is necessary to open the food storage container 1, the control switch 27 is triggered to drive the relevant circuit on the circuit board 26 to open the solenoid valve 25. External air enters the vacuum device 2, flows out through the pressure relief hole 222, and then passes through the annular recessed structure 121 and the movable hole 123 in sequence, and finally enters the inside of the container body 11, relieving the negative pressure inside the container body 11, making it easier to open the top cover 12.

[0034] like Figure 2 and Figure 5As shown, in some embodiments, the vacuuming device 2 further includes a battery 28 and a charging interface 29. The battery 28 is mounted on the bottom cover 22 and is electrically connected to the circuit board 26. The charging interface 29 is mounted on the housing 23 and is electrically connected to the circuit board 26. The battery 28 powers the entire vacuuming device 2 (including the vacuum pump 24, solenoid valve 25, circuit board 26, etc.), allowing it to operate portablely without an external power cord. The charging interface 29 is used to connect to an external power source to charge the built-in battery 28, improving the product's battery life.

[0035] like Figure 2 , Figure 6 and Figure 7 As shown, in some embodiments, the inner side of the first annular seal 21 is further provided with a plurality of arc-shaped protruding segments 213. The plurality of arc-shaped protruding segments 213 are distributed at intervals around the axis of the first annular seal 21, and some of the arc-shaped protruding segments 213 are distributed at intervals along the radial direction of the first annular seal 21. The plurality of arc-shaped protruding segments 213 abut against the bottom of the bottom cover 22 to form a gas transmission space 3 together with the bottom cover 22. The movable hole 123 communicates with the gas transmission space 3, and the gas transmission space 3 communicates with the suction hole 221 and the pressure relief hole 222 respectively.

[0036] It should be noted that when the vacuum device 2 is activated and begins to pump air, the air in the annular recessed structure 121 and the gas transmission space 3 is drawn away, and the pressure difference between the inside and outside gradually increases. At this time, the external atmospheric pressure will further compress the bottom cover 22 and the first annular seal 21 towards the food storage container 1. If the arc-shaped protruding segment 213 is not provided, the bottom cover 22 and the first annular seal 21 may completely adhere under enormous pressure, thereby blocking the gas flow path and causing the pumping to be interrupted. Therefore, the purpose of providing multiple arc-shaped protruding segments 213 is to ensure that there is always a gas transmission space 3 between the bottom cover 22 and the first annular seal 21. This gas transmission space 3 is connected to the movable hole 123, the air extraction hole 221, and the pressure relief hole 222, respectively, to ensure that vacuuming is successfully achieved. At the same time, it also allows external air to pass through the pressure relief hole 222 in sequence through the gas transmission space 3, the annular recessed structure 121, and the movable hole 123 during pressure relief, and finally enter the interior of the food storage container 1.

[0037] Preferably, the annular protrusion 211 extends both along the direction of gravity and away from the axis of the first annular seal 21. For example... Figure 7 As shown, in other words, the annular protrusion 211 forms an outwardly sloping, V-shaped elastic structure in the cross-section, similar to an open lip. It can be understood that during vacuuming, the outward expansion deformation of the V-shaped elastic structure is more natural and less prone to slippage compared to the inward bending deformation of the elastic constriction structure.

[0038] like Figure 2 , Figure 3 and Figure 7 As shown, further, the minimum inner diameter of the annular protrusion 211 is greater than the maximum outer diameter of the one-way valve 4, and the maximum outer diameter of the annular protrusion 211 is smaller than the inner diameter of the sealing mating surface 122. Specifically, the minimum inner diameter of the annular protrusion 211 (i.e., the inner diameter at its root) is designed to be greater than the diameter of the movable hole 123, while the maximum outer diameter of the annular protrusion 211 (i.e., the outer diameter at the end of the annular protrusion 211) is designed to be smaller than the inner diameter of the sealing mating surface 122. This dimensional design ensures that when the vacuum device 2 is placed on the upper cover 12, even with a certain alignment deviation, the annular protrusion 211 can still fall within the effective sealing area of ​​the sealing mating surface 122, thereby completely sealing the movable hole 123 without exceeding the boundary of the sealing mating surface 122. This ensures that under negative pressure, the annular protrusion 211 is reliably pressed against the sealing mating surface 122, guaranteeing the vacuuming effect.

[0039] like Figure 2 and Figure 7 As shown, further, the angle between the projection line of the inner section of the annular protrusion 211 and the axis of the annular protrusion 211 is greater than the angle between the projection line of the outer section of the annular protrusion 211 and the axis of the annular protrusion 211. Observing the annular protrusion 211 in cross-section, the inclination angle of its inner wall relative to the axis is greater than the inclination angle of its outer wall relative to the axis. Compared to a design where the inclination angle of the inner wall of the annular protrusion 211 is smaller than that of its outer wall relative to the axis, the inner surface of the annular protrusion 211 is wider, providing more bending allowance under negative pressure. This allows the inner surface of the annular protrusion 211 to fit onto the sealing mating surface 122 with a larger area when the annular protrusion 211 undergoes outward expansion deformation, increasing the sealing width and thus improving sealing performance.

[0040] See Figure 7 Preferably, the bottom of the annular protrusion 211 is an arc surface, and the inner side of the annular protrusion 211 is connected to the outer side of the annular protrusion 211 through the arc surface. It can be understood that the bottom of the annular protrusion 211 has a rounded corner design, and the inner and outer walls of the annular protrusion 211 are connected by an arc surface, thus making the annular protrusion 211 more smooth and natural when it undergoes outward expansion deformation.

[0041] This embodiment is a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

[0042] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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, the above terms should not be construed as limitations on this application.

[0043] In the description of this application, if words such as "several" are used, they mean one or more, with "multiple" meaning two or more. Terms such as "greater than," "less than," and "exceeding" are understood to exclude the stated number, while terms such as "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

Claims

1. A vacuum-sealed food storage container, characterized in that, include: A food storage container includes a container body and a top cover. The top cover has an annular recessed structure with a top opening. The opening of the annular recessed structure forms a sealing surface, and the diameter of the radial projection contour of the sealing surface gradually decreases along the direction of gravity. The bottom of the annular recessed structure has a movable hole that penetrates the wall thickness of the top cover. When the top cover is closed on the container body, the interior of the container body, the movable hole, the annular recessed structure, and the external environment are sequentially connected. A one-way valve is provided in the movable hole, and the top surface of the one-way valve is lower than the edge of the opening of the annular recessed structure. A vacuuming device is provided with a first annular seal at its bottom, the inner diameter of which is larger than the outer diameter of the one-way valve; the bottom of the first annular seal is provided with an annular protrusion; the vacuuming device can be placed on the annular recessed structure in a vertical or inclined position relative to the central axis of the annular recessed structure; when the vacuuming device is placed on the annular recessed structure in the inclined position and activated, the annular protrusion abuts against the sealing mating surface in a ring shape, and the first annular seal presses the annular protrusion under negative pressure, so that the annular protrusion is pressed tightly against the sealing mating surface.

2. The vacuum-sealed food storage container according to claim 1, characterized in that, The inner side of the first annular seal is provided with a first hollow structure, which provides radial or axial deformation space for the first annular seal.

3. The vacuum-sealed food storage container according to claim 1, characterized in that, The lower edge of the upper cover is provided with a second annular seal for sealing the box body. The second annular seal has a second hollow structure on its inner side, and the second hollow structure provides axial deformation space for the second annular seal.

4. The vacuum-sealed food storage container according to claim 1, characterized in that, The vacuuming device includes a bottom cover, a housing covered on the bottom cover, a vacuum pump fixed on the bottom cover, a solenoid valve, and a circuit board; The bottom of the cover is provided with an air extraction hole connected to the air pump and a pressure relief hole connected to the solenoid valve; both the air extraction hole and the pressure relief hole are connected to the recessed space of the annular recessed structure. The circuit board is equipped with a control switch, and the operating part of the control switch protrudes from the top of the housing.

5. The vacuum-sealed food storage container according to claim 4, characterized in that, The vacuuming device also includes a battery and a charging interface. The battery is installed on the bottom cover and is electrically connected to the circuit board. The charging interface is installed on the housing and is electrically connected to the circuit board.

6. The vacuum-sealed food storage container according to claim 4, characterized in that, The inner side of the first annular seal is also provided with a plurality of arc-shaped protruding segments. Some of the arc-shaped protruding segments are distributed at intervals around the axis of the first annular seal, and some of the arc-shaped protruding segments are distributed at intervals along the radial direction of the first annular seal. The plurality of arc-shaped protruding segments abut against the bottom of the bottom cover to form a gas transmission space together with the bottom cover. The movable hole communicates with the gas transmission space, and the gas transmission space communicates with the suction hole and the pressure relief hole respectively.

7. The vacuum-sealed food storage container according to claim 1, characterized in that, The annular protrusion extends both along the direction of gravity and away from the axis of the first annular seal.

8. The vacuum-sealed food storage container according to claim 1, characterized in that, The minimum inner diameter of the annular protrusion is greater than the maximum outer diameter of the one-way valve, and the maximum outer diameter of the annular protrusion is less than the inner diameter of the sealing mating surface.

9. The vacuum-sealed food storage container according to claim 7, characterized in that, The angle between the projection line of the inner section of the annular protrusion and the axis of the annular protrusion is greater than the angle between the projection line of the outer section of the annular protrusion and the axis of the annular protrusion.

10. The vacuum-sealed food storage container according to claim 1, characterized in that, The bottom of the annular protrusion is an arc surface, and the inner side of the annular protrusion is connected to the outer side of the annular protrusion through the arc surface.

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