VACUUM FOOD STORAGE CONTAINER AND METHOD FOR USING IT

Abstract

A vacuum food storage container includes a bag body and a vacuum valve. The bag body is provided with a bag mouth; the vacuum valve is detachably mounted on the bag mouth; and a gas passage is provided on at least one side wall of the bag body. By providing the bag body and vacuum valve and providing the bag body with the bag mouth, the vacuum valve is detachably mounted on the bag mouth, and a gas passage is provided on at least one side wall of the bag body. The device can preserve food under vacuum by connecting the vacuum pump to the vacuum valve. In addition, during the vacuumizing process, the two side walls of the bag body are easily adsorbed together, resulting in the formation of bubbles at the bottom of the bag body, so that the gas inside the bag body cannot be discharged fully.

Description

REFERENCE TO RELATED APPLICATIONS The present application claims the priority of Chinese patent application No. 202410497531.X, filed on 2024 Apr. 24, the entire disclose of which is incorporated herein by reference.

Technical Field The present invention relates to the field of food packaging, and more particularly to a vacuum food storage container and method of use thereof.

Background Art

At present, available food bags, in which the food is poured directly into the bag, lack of both vacuum and re-use functions. For example, the existing compact bags do not have a vacuumizing function, and storing food under a non-vacuum condition could not ensure a long preservation time. As another example, the food storage bag does not have the function of repeated use and is environmentally unfriendly and costly. Therefore, there is an urgent need for a vacuum food storage container and a method of use thereof to solve the above problems.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a vacuum food storage container and a method of use thereof, which can increase the preservation time.

To solve the above technical problem, the present invention provides a vacuum food storage container including a bag body and a vacuum valve, where the bag body is provided with a bag mouth; the vacuum valve is detachably mounted on the bag mouth; and a gas passage is provided on at least one side wall of the bag body.

Further, the bag body includes a first bag layer and a second bag layer; where the bag body includes a first bag layer and a second bag layer; a portion of the first bag layer and a portion of the second bag layer are connected; the other portion of the first bag layer and the other portion of the second bag layer form the bag mouth; the first bag layer is provided with a first embossing, and forms the gas passage when being adhered to the second bag layer; at least one surface of the first bag layer and the second bag layer is provided with the first embossing, and the gas passage is formed when the first bag layer and the second bag layer are adhered to each other.

Further, the second bag layer is provided with a smooth surface.

Further, a second embossing symmetrical to the first embossing is provided on the second bag layer, and the first embossing and the second embossing form the gas passage.

Further, the first embossing and the second embossing each include a dot type embossing or a strip type embossing, where the strip type embossing is arranged in parallel or staggered.

Further, the bag body includes a bottom of the bag, two sides and a top of the bag; the two sides are respectively located at two sides of the bottom of the bag and the top of the bag, and the bottom of the bag and the top of the bag are respectively located at two ends of the two sides; the bag mouth is located at one of the two sides, or at the top of the bag, or at the connection of the top of the bag and the side.

Further, a handle is provided on one of the two sides or the top of the bag.

Further, an expanded portion is provided on the bottom of the bag for supporting the bag body when the expanded portion is unfolded.

Further, the handle is perpendicular to the expanded portion.

Further, the bag mouth is provided with a hollow connector; one end of the hollow connector is connected to the inner wall of the bag body; the vacuum valve includes an assembly, a silica gel piece and a valve;

• • the assembly is mounted on the hollow connector by means of a threaded connection; a sealing ring is provided between the hollow connector and the assembly; one end of the assembly away from the hollow connector is provided with a plurality of through holes, mounting holes and annular members; the through hole is in communication with the interior of the bag body through the hollow connector; the through hole is provided around the mounting hole; the annular member is located in the middle of the assembly, and the through hole and the mounting hole are both located in the middle of the annular member; the silica gel piece is mounted on the mounting hole and is located in the annular member; the side wall of the annular member is provided with an opening; the valve is mounted on the annular member by means of a threaded connection; the side wall of the valve is provided with a slot corresponding to the opening; when the valve is rotated, the vacuum valve can be vented through the slot corresponding to the opening, or the bag body can be sealed away from the opening through the slot.

Further, a foldable funnel is included, where the foldable funnel is provided with a snap fit portion; when the vacuum valve is removed, the snap fit portion of the foldable funnel is snap fit with the hollow connector.

Further, the foldable funnel includes: a first connector, a second connector, and a plurality of third connectors;

• • the second connector includes four sides; a portion of the first connector is connected to one of the edges of the second connector, and the first connector is perpendicular to the second connector; the first connector is provided with a plurality of creases perpendicular to the second connector, and the remaining portion of the first connector is respectively in contact with the remaining three sides of the second connector along the creases, and form a rectangular box;
  • a connecting hole is provided in the middle of the second connector, and the hollow connector is snap fit through the connecting hole when the vacuum valve is removed;
  • the plurality of third connectors are respectively connected to the remaining three sides of the second connector; a clip is provided on one side of the third connector away from the second connector, and a clamping slot for clamping the clip is provided on the first connector; when the third connector is folded upward along the connection of the third connector and the second connector, the clip can be inserted into the clamping slot.

Further, the foldable funnel is made of silicone, and the foldable funnel includes an integrally formed connecting head and a telescopic piece;

• • the connecting head is of a hollow structure for covering the hollow connector to snap fit; and a plurality of reinforcing bars are provided on the outer side wall of the connecting head;
  • the telescopic piece is of a hollow structure and is in communication with the connecting head; the telescopic piece includes a first telescopic layer, a second telescopic layer and a third telescopic layer; the second telescopic layer is located between the first telescopic layer and the third telescopic layer; one end of the third telescopic layer away from the second telescopic layer is connected to the connecting head; the diameter of the second telescopic layer is smaller than that of the first telescopic layer and larger than that of the third telescopic layer;
  • the connecting head, the third telescopic layer and the second telescopic layer are successively folded in a direction towards the first telescopic layer; or, the connecting head, the third telescopic layer and the second telescopic layer are sequentially stretched in a direction away from the first telescopic layer to form a funnel-shaped structure.

Further, the present invention also provides a method for using a vacuum food storage container using the vacuum food storage container as described above, the method specifically including the following steps:

• • removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;
  • after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; and
  • after the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

With the above technical solution, the present invention has the following advantageous effects:

by providing the bag body and vacuum valve and providing the bag body with the bag mouth, the vacuum valve is detachably mounted on the bag mouth, and a gas passage is provided on at least one side wall of the bag body. The device can preserve food under vacuum by connecting the vacuum pump to the vacuum valve. In addition, during the vacuumizing process, the two side walls of the bag body are easily adsorbed together, resulting in the formation of bubbles at the bottom of the bag body, so that the gas inside the bag body cannot be discharged fully. With the arrangement of the gas passage, the present device can prevent the two side walls of the bag body from being completely adsorbed together, resulting in the formation of bubbles at the bottom of the bag, so that the gas can be discharged fully through the gas passage, thereby increasing the preservation time.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view illustrating a handle of a vacuum food storage container provided on a side according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram illustrating a vacuum food storage container having a zipper according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram illustrating a vacuum food storage container when the embossing is a pattern according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram illustrating a first bag layer having embossing in a vacuum food storage container according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram illustrating both the first bag layer and the second bag layer having embossing in a vacuum food storage container according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram illustrating a handle provided at a top of a bag in a vacuum food storage container according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram illustrating a handle provided at a connection between a top of a bag and a side in a vacuum food storage container according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram illustrating a hollow connector and a vacuum valve of a vacuum food storage container according to an embodiment of the present invention;

FIG. 9 is an exploded view of a hollow connector and a vacuum valve of a vacuum food storage container according to an embodiment of the present invention;

FIG. 10 is a top view illustrating a vacuum valve assembly in a vacuum food storage container according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram illustrating a foldable funnel unfolded in a vacuum food storage container according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram illustrating a foldable funnel assembled in a vacuum food storage container according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram illustrating a foldable funnel stretched in a vacuum food storage container according to another embodiment of the present invention; and

FIG. 14 is a schematic structural diagram illustrating a foldable funnel folded in a vacuum food storage container according to another embodiment of the present invention.

In the figure, 1. bag body; 100. first bag layer; 1001. first embossing; 101. second bag layer; 1010. second embossing;

2. vacuum valve; 21. assembly; 210. through hole; 211. mounting hole; 212. annular member; 2120. opening; 22. silica gel piece; 23. valve; 230. slot; 24. sealing ring;

3. bag mouth; 4. gas passage; 5. handle; 6. expanded portion; 7. hollow connector; 1000. bubble;

80. first connector; 800. crease; 801. clamping slot; 802. first device; 803. second device; 804. third device; 805. fourth device; 81. second connector; 810. connecting hole; 811. snap fit port; 82. third connector; 820. clip;

83. connecting head; 830. reinforcing bar; 840. first telescopic layer; 841. second telescopic layer; 842. third telescopic layer; 85. handle; 850. hanging hole;

9. zipper.

DETAILED DESCRIPTION OF THE INVENTION

Specific embodiments of the present invention are further described below with reference to the drawings and examples. The following examples are provided only to more clearly illustrate the technical solution of the present invention, and are not intended to limit the scope of the present invention.

As shown in FIGS. 1 to 6, the embodiment of the present invention provides a convenient and practical vacuum food storage container including a bag body 1 and a vacuum valve 2.

Specifically, the bag body 1 is provided with a bag mouth 3; the vacuum valve 2 is detachably mounted on the bag mouth 3; a gas passage 4 is provided on at least one side wall of the bag body 1. The vacuum valve 2 is used in connection with a vacuum pump to achieve vacuum extraction.

In one embodiment, as shown in FIG. 2, the bag body 1 is further provided with a zipper 9, and by means of the arrangement of the zipper 9, it is also possible to achieve the filling of the food by pulling the zipper 9 apart without disassembling the vacuum valve 2, which is simple and practical. Preferably, the zipper 9 may be positioned at one side of the bag body 1 together with the bag mouth 3, or the zipper 9 may be positioned on the other side of the bag body 1 according to practical requirements.

In this embodiment, with continued reference to FIGS. 4 and 5, the bag body 1 includes a first bag layer 100 and a second bag layer 101. Specifically, a portion of the first bag layer 100 and a portion of the second bag layer 101 are connected; another part of the first bag layer 100 and another part of the second bag layer 101 form the bag mouth 3; the first bag layer 100 is provided with a first embossing 1001, and forms the gas passage 4 when being adhered to the second bag layer 101; at least one surface of the first bag layer 100 and the second bag layer 101 is provided with the first embossing 1001, and the gas passage 4 is formed when being adhered to another bag layer. By providing the gas passage 4, it is possible to prevent the formation of bubbles 1000 in the interior of the bag body 1 when vacuumizing. Since the bubbles 1000 are easily formed without the gas passage 4 (as shown in FIGS. 1 and 3), the vacuumizing cannot be complete. Or there is gas remaining in the bag body 1, which affects the storage of food, and the preservation time cannot be ensured.

The actual sizes of the bag mouth 3 and the vacuum valve 2 may be set according to actual requirements.

In one embodiment, with continued reference to FIG. 4, the second bag layer 101 is provided with a smooth surface. By providing the second bag layer 101 with the smooth surface, it is possible to easily print desired patterns and characters. In addition, even if the second bag layer 101 is provided with a smooth surface, the first embossing 1001 on the first bag layer 100 has a wave shape, and therefore, as shown in FIGS. 1 to 4, the gas passage 4 can be formed when the first embossing 1001 comes into contact with the second bag layer 101, so that gas can be better discharged through the gas passage 4. Even if bubbles 1000 are formed during vacuumizing, the bubbles 1000 can be discharged through the gas passage 4.

In another embodiment, with continued reference to FIG. 5, a second embossing 1010 symmetrical to the first embossing 1001 is provided on the second bag layer 101, the first embossing 1001 and the second embossing 1010 forming the gas passage 4. If it is not necessary to print patterns and characters on the bag body 1, it is also possible to form the gas passage 4 by the arrangement of the second embossing 1010 in contact with the first embossing 1001 due to the symmetrical arrangement, and to enlarge the diameter of the gas passage 4, so that the gas can be discharged through the gas passage 4 in a relatively quick manner.

Preferably, the first embossing 1001 and the second embossing 1010 each include a dot type embossing or a strip type embossing. The strip type embossing is arranged in parallel or in a staggered manner, for example, they may be inclined stripes arranged in a staggered manner, as shown in FIG. 1 (dot type embossing) and FIG. 3 (strip type embossing), and may be processed using a desired process according to actual requirements. In addition, a person skilled in the art would know that the first embossing 1001 and the second embossing 1010 can also be embossing of other shapes under the same effect, for example, the first embossing 1001 and the second embossing 1010 can also be in a convex shape.

In the present embodiment, the bag body 1 is made of 1.2-wire PET, 1.5-wire PA and 17-wire PE by a three-layer composite process, so that the bag body 1 has stronger toughness and firmness.

In the present embodiment, as shown in combination with FIGS.1 and 6-7, the bag body 1 includes a bottom of the bag, two sides and a top of the bag; the two sides are respectively located at two sides of the bottom of the bag and the top of the bag, and the bottom of the bag and the top of the bag are respectively located at two ends of the two sides; the bag mouth 3 is located at one of the two sides, or at the top of the bag, or at the connection of the top of the bag and the side.

In this embodiment, one of the two sides or the top of the bag is provided with a handle 5 for carrying and pouring the food in the bag body 1.

Preferably, as shown with continued reference to FIGS. 1-3 and 6, the bottom of the bag body 1 is provided with an expanded portion 6 for supporting the bag body 1 when the expanded portion 6 is unfolded. By the provision of the expanded portions 6, the bag body 1 can stand on its own on a table top or other carrier without external force.

As a preferred embodiment, when the handle 5 is perpendicular to the expanded portion 6, i.e., when the handle 5 is arranged on one of the two sides, there is no need to hold the bottom of the bag when it is desired to pour the food in the bag body 1. If the handle 5 is arranged at the top of the bag body 1, i.e., the handle 5 is parallel to the expanded portion 6, the bottom of the bag body 1 needs to be lifted by gravity in order to be able to pour out the food (since the width of the expanded portion 6 is greater than the width of the top of the bag body 1, the expanded portion 6 is located at where there is the most food, making the bottom of the bag heavier). In the present device, the handle 5 is perpendicularly installed at the expanded portion 6, so that when the food is poured, there is no need to hold the bottom of the bag body 1, thereby facilitating the pouring of the food.

In a specific example, the middle portion of the expanded portion 6 is provided with a crease, and the space occupied by the bag body 1 is reduced by folding the expanded portion 6 along the crease between the first bag layer 100 and the second bag layer 101. More specifically, both sides of the expanded portion 6 are connected to the side wall of the first bag layer 100 away from the bag mouth 3 and the side wall of the second bag layer 101 away from the bag mouth 3, respectively.

In a particular embodiment, as shown in combination with FIGS. 1 and 6-10, the bag mouth 3 is provided with a hollow connector 7. One end of the hollow connector 7 is connected to the inner wall of the bag body 1 (can be connected by welding); the vacuum valve 2 includes an assembly 21, a silica gel piece 22 and a valve 23.

In particular, the assembly 21 is mounted on the hollow connector 7 by means of a threaded connection; a sealing ring 24 is provided between the hollow connector 7 and the assembly 21; one end of the assembly 21 away from the hollow connector 7 is provided with a plurality of through holes 210, mounting holes 211 and annular members 212; the through hole 210 is in communication with the interior of the bag body 1 via the hollow connector 7; the through hole 210 is provided around the mounting hole 211; the annular member 212 is located in the middle of the assembly 21, and the through hole 210 and the mounting hole 211 are both located in the middle of the annular member 212; the silica gel piece 22 is mounted on the mounting hole 211 and positioned in the annular member 212.

The side wall of the annular member 212 is provided with an opening 2120. Specifically, the valve 23 is mounted on the annular member 212 by means of a threaded connection; the side wall of the valve 23 is provided with a slot 230 corresponding to the opening 2120; when the valve 23 is rotated, the vacuum valve 2 can be vented corresponding to the opening 2120 through the slot 230, or the bag body I can be sealed away from the opening 2120 through the slot 230.

The vacuum valve 2 of the present embodiment needs to cooperate with a vacuum pump to achieve vacuum extraction. The vacuum pump may be an electric pump or a manual pump.

Preferably, the surface of the bag body 1 is provided with a volume scale (not shown in the figures for simplicity of illustration). The scale unit is milliliter, so that the amount of food in the bag body I can be easily observed through the volume scale.

In addition, the present embodiment further includes a foldable funnel, where the foldable funnel is provided with a snap fit portion; when the vacuum valve 2 is removed, the snap fit portion of the foldable funnel is snap fit with the hollow connector 7, so that food can be filled in.

In one embodiment, the foldable funnel may be made of plastic. As shown in FIG. 11, the foldable funnel includes: a first connector 80, a second connector 81 and a plurality of third connectors 82. More specifically, the second connector 81 includes four sides; a portion of the first connector 80 is connected to one of the edges of the second connector 81, and the first connector 80 is perpendicular to the second connector 81; the first connector 80 is provided with a plurality of creases 800 perpendicular to the second connector 81, and the remaining portion of the first connector 80 is respectively in contact with the remaining three sides of the second connector 81 along the creases 800, and form a rectangular box;

In the present embodiment, a connecting hole 810 is in the middle of the second connector 81, and the hollow connector 7 is snap fit through the connecting hole 810 when the vacuum valve 2 is removed. The edge of the connecting hole 810 is further provided with a plurality of symmetrical snap fit port 811 to facilitate the hollow connector 7 to pass through the connecting hole 810 smoothly.

In one embodiment, the plurality of third connectors 82 are respectively connected to the remaining three sides of the second connector 81; a clip 820 is provided on one side of the third connector 82 away from the second connector 81, and a clamping slot 801 for clamping the clip 820 is provided on the first connector 80; when the third connector 82 is upward along the connection of the third connector 82 and the second connector 81 (upward means: the clip 820 is folded toward the clamping slot 801, and the clip 820 can be inserted into the clamping slot 801.

In a specific example, with continued reference to FIG. 11, the first connector 80 is provided with three of the creases 800 that divide the first connector 80 into a first assembly member 802, a second assembly member 803, a third assembly member 804, and a fourth assembly member 805; the second mounting member 803 is positioned between the first mounting member 802 and a third mounting member 804 positioned between the second mounting member 803 and the fourth mounting member 805.

One side of the second device 803 is connected to one side of the second connector 81, and the first device 802, the third device 804 and fourth device 805 are respectively folded around the second connector 81 along three creases 800, and form the rectangular box with the second connector 81; and one side of the first device 802, the third device 804 and the fourth device 805 respectively contacts the remaining three sides of the second connector 81.

Preferably, as shown in FIG. 12, the first device 802, the third device 804, and the fourth device 805 are all provided with the clamping slot 801; when the third connector 82 is folded upward along the connection between the third connector 82 and the second connector 81, the clip 820 can be inserted into the clamping slot 801.

In another embodiment, as shown in FIGS.13-14, the foldable funnel is made of silica gel; the foldable funnel includes an integrally formed connecting head 83 and a telescopic piece.

Specifically, the connecting head 83 is of a hollow structure for sleeving the hollow connector 7 to snap fit; the outer side wall of the connecting head 83 is provided with a plurality of reinforcing bars 830; the telescopic piece has a hollow structure and is in communication with the connecting head 83.

In the present embodiment, the telescopic piece includes a first telescopic layer 840, a second telescopic layer 841, and a third telescopic layer 842; the second telescopic layer 841 is located between the first telescopic layer 840 and the third telescopic layer 842; one end of the third telescopic layer 842 away from the second telescopic layer 841 is connected to the connecting head 83; the diameter of the second telescopic layer 841 is smaller than that of the first telescopic layer 840 and larger than that of the third telescopic layer 842; the connecting head 83, the third telescopic layer 842 and the second telescopic layer 841 are successively folded in a direction towards the first telescopic layer 840 (to achieve the folding of a foldable funnel); or, the connecting head 83, the third telescopic layer 842, and the second telescopic layer 841 are sequentially stretched in a direction away from the first telescopic layer 840 to form a funnel-shaped structure.

Preferably, a handle 85 is provided on a side wall of the first telescopic layer 840, and the handle 85 is provided with a hanging hole 850, so that the foldable funnel can be placed by hanging the hanging hole 850 on a hook.

In the present embodiment, the present embodiment can be manufactured in the order of plate making, printing film, composite three-layer film, embossing one side of the bag body 1 (one side of the bag body 1 refers to the first bag layer 100 or the second bag layer 101), making a bag, pressing a suction nozzle, and mounting a handle 5.

Further, the present embodiment also provides a method for using a vacuum food storage container using the vacuum food storage container as described above, the method specifically including the following steps:

S1: a vacuum valve 2 of the vacuum food storage container is removed, the foldable funnel is snap fit with the hollow connector 7 to fill in the food;

S2: after filling in the food, a vacuum valve 2 is mounted on the hollow connector 7, and vacuumizing is performed by connecting the vacuum pump with the hollow connector 7; and

S3: after the vacuumizing, the valve 23 of the vacuum valve 2 is rotated so that the whole bag body 1 is in a sealed state.

In the present embodiment, the valve 23 of the vacuum valve 2 is rotated, for example, the valve 23 is rotated clockwise to install the vacuum pump with the vacuum valve 2 to start the vacuumizing operation. After vacuumizing is completed, the valve 23 is rotated counterclockwise so that the entire bag body 1 is in a sealed state.

In view of the above, the present invention provides a vacuum food storage container and a method of use thereof, which has the following advantages:

• • by providing the bag body and vacuum valve and providing the bag body with the bag mouth, the vacuum valve is detachably mounted on the bag mouth, and a gas passage is provided on at least one side wall of the bag body. The device can preserve food under vacuum by connecting the vacuum pump to the vacuum valve. In addition, during the vacuumizing process, the two side walls of the bag body are easily adsorbed together, resulting in the formation of bubbles at the bottom of the bag body, so that the gas inside the bag body cannot be discharged fully. With the arrangement of the gas passage, the present device can prevent the two side walls of the bag body from being completely adsorbed together, resulting in the formation of bubbles at the bottom of the bag, so that the gas can be discharged through the gas passage, thereby increasing the preservation time.

It will be apparent to person skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Thus, it is intended that the present invention cover the modifications and variations of the present invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. A vacuum food storage container, comprising a bag body and a vacuum valve, wherein the bag body is provided with a bag mouth; the vacuum valve is detachably mounted on the bag mouth; and a gas passage is provided on at least one side wall of the bag body.

2. The vacuum food storage container according to claim 1, wherein the bag body comprises a first bag layer and a second bag layer; a portion of the first bag layer and a portion of the second bag layer are connected; the other portion of the first bag layer and the other portion of the second bag layer form the bag mouth; the first bag layer is provided with a first embossing, and forms the gas passage when being adhered to the second bag layer; at least one surface of the first bag layer and the second bag layer is provided with the first embossing, and the gas passage is formed when the first bag layer and the second bag layer are adhered to each other.

3. The vacuum food storage container according to claim 2, wherein the second bag layer is provided with a smooth surface.

4. The vacuum food storage container according to claim 2, wherein a second embossing symmetrical to the first embossing is provided on the second bag layer, and the first embossing and the second embossing form the gas passage.

5. The vacuum food storage container according to claim 4, wherein the first embossing and the second embossing each comprise a dot type embossing or a strip type embossing, wherein the strip type embossing is arranged in parallel or staggered.

6. The vacuum food storage container according to claim 1, wherein the bag body comprises a bottom of the bag, two sides and a top of the bag; the two sides are respectively located at two sides of the bottom of the bag and the top of the bag, and the bottom of the bag and the top of the bag are respectively located at two ends of the two sides; the bag mouth is located at one of the two sides, or at the top of the bag, or at the connection of the top of the bag and the side.

7. The vacuum food storage container according to claim 6, wherein a handle is provided on one of the two sides or the top of the bag.

8. The vacuum food storage container according to claim 6, wherein an expanded portion is provided on the bottom of the bag for supporting the bag body when the expanded portion is unfolded.

9. The vacuum food storage container according to claim 1, wherein the bag mouth is provided with a hollow connector; one end of the hollow connector is connected to the inner wall of the bag body; the vacuum valve comprises an assembly, a silica gel piece and a valve; the assembly is mounted on the hollow connector by means of a threaded connection; a sealing ring is provided between the hollow connector and the assembly; one end of the assembly away from the hollow connector is provided with a plurality of through holes, mounting holes and annular members; the through hole is in communication with the interior of the bag body through the hollow connector; the through hole is provided around the mounting hole; the annular member is located in the middle of the assembly, and the through hole and the mounting hole are both located in the middle of the annular member; the silica gel piece is mounted on the mounting hole and is located in the annular member; the side wall of the annular member is provided with an opening; the valve is mounted on the annular member by means of a threaded connection; the side wall of the valve is provided with a slot corresponding to the opening; when the valve is rotated, the vacuum valve can be vented through the slot corresponding to the opening, or the bag body can be sealed away from the opening through the slot.

10. The vacuum food storage container according to claim 9, further comprising a foldable funnel, wherein the foldable funnel is provided with a snap fit portion; when the vacuum valve is removed, the snap fit portion of the foldable funnel is snap fit with the hollow connector.

11. The vacuum food storage container according to claim 10, wherein the foldable funnel comprises: a first connector, a second connector, and a plurality of third connectors; the second connector comprises four sides; a portion of the first connector is connected to one of the edges of the second connector, and the first connector is perpendicular to the second connector; the first connector is provided with a plurality of creases perpendicular to the second connector, and the remaining portion of the first connector is respectively in contact with the remaining three sides of the second connector along the creases, and form a rectangular box;a connecting hole is provided in the middle of the second connector, and the hollow connector is snap fit through the connecting hole when the vacuum valve is removed;the plurality of third connectors are respectively connected to the remaining three sides of the second connector; a clip is provided on one side of the third connector away from the second connector, and a clamping slot for clamping the clip is provided on the first connector; when the third connector is folded upward along the connection of the third connector and the second connector, the clip can be inserted into the clamping slot.

12. The vacuum food storage container according to claim 10, wherein the foldable funnel is made of silicone, and the foldable funnel comprises an integrally formed connecting head and a telescopic piece; the connecting head is of a hollow structure for covering the hollow connector to snap fit; and a plurality of reinforcing bars are provided on the outer side wall of the connecting head;the telescopic piece is of a hollow structure and is in communication with the connecting head; the telescopic piece comprises a first telescopic layer, a second telescopic layer and a third telescopic layer; the second telescopic layer is located between the first telescopic layer and the third telescopic layer; one end of the third telescopic layer away from the second telescopic layer is connected to the connecting head; the diameter of the second telescopic layer is smaller than that of the first telescopic layer and larger than that of the third telescopic layer;the connecting head, the third telescopic layer and the second telescopic layer are successively folded in a direction towards the first telescopic layer; or, the connecting head, the third telescopic layer and the second telescopic layer are sequentially stretched in a direction away from the first telescopic layer to form a funnel-shaped structure.

13. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 12, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

14. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 11, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

15. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 11, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

16. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 8, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

17. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 6, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

18. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 4, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

19. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 2, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.

20. A method of use of a vacuum food storage container, using the vacuum food storage container according to claim 1, comprising the following steps: removing a vacuum valve of the vacuum food storage container, snap fitting the foldable funnel with the hollow connector to fill in the food;after filling in the food, mounting a vacuum valve on the hollow connector, and vacuumizing by connecting the vacuum pump with the hollow connector; andafter the vacuumizing, rotating the valve of the vacuum valve so that the whole bag body is in a sealed state.