Storage bag

Abstract

The utility model discloses a storage bag. The storage bag comprises a storage bag body, a first sealing cover, a second sealing cover, a first compression zipper and a second compression zipper, through the arrangement of the plurality of compression zippers, a user can respectively pull different pullers according to needs to compress for multiple times, and the volume of the accommodating cavity in the storage bag is reduced step by step, so that the utilization rate of the storage space is effectively improved. And each compression zipper enables the telescopic surface of the storage bag to be compressed and deformed, so that the storage requirements of different articles are met.

Description

Technical Field

[0001] This application relates to the field of storage equipment technology, specifically a storage bag, and more particularly a storage bag with multi-level compression function. Background Technology

[0002] Existing storage bags typically only have one compression zipper, limiting their compression capabilities and making them unsuitable for effectively compressing or organizing clothes and items in various usage scenarios. These traditional designs fail to meet the need for multi-level compression space, especially when dealing with larger items, lacking flexible and adjustable storage space. Utility Model Content

[0003] This application provides a storage bag with multi-level compression deformation function.

[0004] The storage bag provided in this application includes a storage bag body, a first cover and a second cover respectively connected to opposite ends of the storage bag body, and a first compression zipper and a second compression zipper;

[0005] The storage bag body includes a telescopic surface, and a first annular surface and a second annular surface connecting opposite ends of the telescopic surface;

[0006] The first compression zipper includes a first chain portion connecting the first annular surface, a second chain portion connecting the second annular surface, and a first zipper head that engages with the first chain portion and the second chain portion;

[0007] The second compression zipper includes a third chain portion connected to the storage bag body near the first annular surface, a fourth chain portion connected to the storage bag body near the second annular surface, and a second zipper head that engages with the third chain portion and the fourth chain portion.

[0008] The first cover, the second cover, and the telescopic surface form a receiving cavity;

[0009] When the second pull head moves and locks the third chain portion with the fourth chain portion, the telescopic surface is compressed and deformed, causing the receiving cavity to be compressed;

[0010] When the first pull head moves and locks the first chain portion with the second chain portion, the telescopic surface is further compressed and deformed, and the receiving cavity is further compressed.

[0011] The storage bag provided in this application includes a storage bag body, a first cover and a second cover respectively connected to opposite ends of the storage bag body, an isolation surface, and a first compression zipper and a second compression zipper;

[0012] The storage bag body includes a telescopic surface, and a first annular surface and a second annular surface connecting opposite ends of the telescopic surface;

[0013] The first compression zipper includes a first chain portion connecting the first annular surface, a second chain portion connecting the second annular surface, and a first zipper head that engages with the first chain portion and the second chain portion;

[0014] The second compression zipper includes a third chain portion connected to the storage bag body near the first annular surface, a fourth chain portion connected to the storage bag body near the second annular surface, and a second zipper head that engages with the third chain portion and the fourth chain portion.

[0015] The first cover, the isolation surface, and a portion of the telescopic surface form a first receiving cavity, and the second cover, the isolation surface, and another portion of the telescopic surface form a second receiving cavity;

[0016] When the second pull head moves and locks the third chain portion with the fourth chain portion, the telescopic surface is compressed and deformed, causing both the first and second receiving cavities to be compressed;

[0017] When the first pull head moves and locks the first chain portion with the second chain portion, the telescopic surface is further compressed and deformed, causing both the first and second receiving cavities to be further compressed.

[0018] The storage bag provided in this application includes a storage bag body, a first cover and a second cover respectively connected to opposite ends of the storage bag body, an isolation surface, and a first compression zipper and a second compression zipper;

[0019] The storage bag body includes a telescopic surface, and a first annular surface and a second annular surface connecting opposite ends of the telescopic surface;

[0020] The first compression zipper includes a first chain portion connecting the first annular surface, a second chain portion connecting the second annular surface, and a first zipper head that engages with the first chain portion and the second chain portion;

[0021] The second compression zipper includes a third chain portion connected to the storage bag body near the first annular surface, a fourth chain portion connected to the storage bag body near the second annular surface, and a second zipper head that engages with the third chain portion and the fourth chain portion.

[0022] The first cover, the isolation surface, and the telescopic surface form a first receiving cavity, and the second cover and the isolation surface form a second receiving cavity;

[0023] When the second pull head moves and locks the third chain portion with the fourth chain portion, the telescopic surface is compressed and deformed, causing the first receiving cavity to be compressed;

[0024] When the first pull head moves and locks the first chain portion with the second chain portion, the telescopic surface is further compressed and deformed, and the first receiving cavity is further compressed.

[0025] The storage bag provided in this application includes a storage bag body, a first cover and a second cover respectively connected to opposite ends of the storage bag body, and a first compression zipper and a plurality of second compression zippers;

[0026] The storage bag body includes a telescopic surface, and a first annular surface and a second annular surface connecting opposite ends of the telescopic surface;

[0027] The first compression zipper includes a first chain portion connecting the first annular surface, a second chain portion connecting the second annular surface, and a first zipper head that engages with the first chain portion and the second chain portion;

[0028] Each of the second compression zippers includes a third chain portion connected to the storage bag body near the first annular surface, a fourth chain portion connected to the storage bag body near the second annular surface, and a second zipper head that engages with the third chain portion and the fourth chain portion. The plurality of third chain portions and the plurality of fourth chain portions are arranged at intervals along the height direction of the storage bag body.

[0029] The first cover, the second cover, and the telescopic surface form a receiving cavity;

[0030] When the multiple second pull heads move sequentially and lock the third chain portion with the fourth chain portion, the telescopic surface is compressed and deformed, causing the receiving cavity to be compressed;

[0031] When the first pull head moves and locks the first chain portion with the second chain portion, the telescopic surface is further compressed and deformed step by step, and the receiving cavity is further compressed step by step.

[0032] The storage bag provided in this application includes a storage bag body, a first cover and a second cover respectively connected to opposite ends of the storage bag body, an isolation surface, and a first compression zipper and a second compression zipper;

[0033] The storage bag body includes a telescopic surface, and a first annular surface and a second annular surface connecting opposite ends of the telescopic surface;

[0034] The first compression zipper includes a first chain portion connecting the first annular surface, a second chain portion connecting the second annular surface, and a first zipper head that engages with the first chain portion and the second chain portion;

[0035] Each of the second compression zippers includes a third chain portion connected to the storage bag body near the first annular surface, a fourth chain portion connected to the storage bag body near the second annular surface, and a second zipper head that engages with the third chain portion and the fourth chain portion. The plurality of third chain portions and the plurality of fourth chain portions are arranged at intervals along the height direction of the storage bag body.

[0036] The first cover, the isolation surface, and a portion of the telescopic surface form a first receiving cavity, and the second cover, the isolation surface, and another portion of the telescopic surface form a second receiving cavity;

[0037] When the multiple second pull heads move sequentially and lock the third chain portion and the fourth chain portion together, the telescopic surface is compressed and deformed, causing both the first and second receiving cavities to be compressed;

[0038] When the first pull head moves and locks the first chain portion with the second chain portion, the telescopic surface is further compressed and deformed step by step, causing both the first and second receiving cavities to be further compressed step by step.

[0039] The storage bag provided in this application includes a storage bag body, a first cover and a second cover respectively connected to opposite ends of the storage bag body, an isolation surface, and a first compression zipper and a plurality of second compression zippers;

[0040] The storage bag body includes a telescopic surface, and a first annular surface and a second annular surface connecting opposite ends of the telescopic surface;

[0041] The first compression zipper includes a first chain portion connecting the first annular surface, a second chain portion connecting the second annular surface, and a first zipper head that engages with the first chain portion and the second chain portion;

[0042] Each of the second compression zippers includes a third chain portion connected to the storage bag body near the first annular surface, a fourth chain portion connected to the storage bag body near the second annular surface, and a second zipper head that engages with the third chain portion and the fourth chain portion. The plurality of third chain portions and the plurality of fourth chain portions are arranged at intervals along the height direction of the storage bag body.

[0043] The first cover, the isolation surface, and the telescopic surface form a first receiving cavity, and the second cover and the isolation surface form a second receiving cavity;

[0044] When the multiple second pull heads move sequentially and lock the third chain portion with the fourth chain portion, the telescopic surface is compressed and deformed, causing the first receiving cavity to be compressed;

[0045] When the first pull head moves and locks the first chain portion with the second chain portion, the telescopic surface is further compressed and deformed step by step, and the first receiving cavity is further compressed step by step.

[0046] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0047] This application provides a storage bag with multi-stage compression deformation function. By setting multiple compression zippers on the storage bag body, multi-stage compression deformation can be achieved, thereby improving the storage bag's efficiency and flexibility. Specifically, this invention provides a storage bag with two or more compression zippers, which achieves different degrees of compression of storage space through multi-stage compression deformation, thereby enabling the storage bag to hold more items and effectively save space. Attached Figure Description

[0048] Figure 1 This is a three-dimensional structural diagram of the storage bag used in the embodiment.

[0049] Figure 2 for Figure 1 A schematic diagram of the storage bag with its first cover, second cover, and first compression zipper in the closed state;

[0050] Figure 3 for Figure 1 A schematic diagram of the storage bag with its first cover, second cover, first compression zipper, and second compression zipper in the closed state.

[0051] Explanation of reference numerals in the attached drawings: 10. Storage bag body; 11. Telescopic surface; 12. First annular surface; 13. Second annular surface;

[0052] 20. First sealing layer;

[0053] 30. Second cover;

[0054] 40. First compression zipper; 41. First chain section; 42. Second chain section; 43. First zipper pull;

[0055] 50. Second compression zipper; 51. Third chain section; 52. Fourth chain section; 53. Second zipper pull;

[0056] 70. First connecting zipper; 71. First connecting chain; 72. Second connecting chain; 73. First connecting zipper pull;

[0057] 80. Second connecting zipper; 81. Third connecting chain; 82. Fourth connecting chain. Detailed Implementation

[0058] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0059] like Figure 1 As shown, the storage bag in this embodiment includes a storage bag body 10, a first cover 20 and a second cover 30 respectively connected to opposite ends of the storage bag body 10, an isolation surface, and a first compression zipper 40 and a second compression zipper 50.

[0060] The storage bag body 10 includes a telescopic surface 11 and a first annular surface 12 and a second annular surface 13 connecting opposite ends of the telescopic surface 11.

[0061] The first compression zipper 40 includes a first chain portion 41 connected to the first annular surface 12, a second chain portion 42 connected to the second annular surface 13, and a first zipper head 43 that engages with the first chain portion 41 and the second chain portion 42.

[0062] The second compression zipper 50 includes a third chain portion 51 connected to the storage bag body 10 near the first annular surface 12, a fourth chain portion 52 connected to the storage bag body 10 near the second annular surface 13, and a second zipper head 53 that engages with the third chain portion 51 and the fourth chain portion 52. The third chain portion 51 and the fourth chain portion 52 are both located between the first chain portion 41 and the second chain portion 42.

[0063] The first cover 20, the isolation surface and the telescopic surface 11 form a first receiving cavity, and the second cover 20 and the isolation surface form a second receiving cavity.

[0064] like Figure 2 As shown, when the second pull head 53 moves and locks the third chain portion 51 and the fourth chain portion 52, the telescopic surface 11 is compressed and deformed, causing the first receiving cavity to be compressed.

[0065] like Figure 3 As shown, when the first pull head 43 moves and locks the first chain portion 41 with the second chain portion 42, the telescopic surface 11 is further compressed and deformed, and the first receiving cavity is further compressed.

[0066] The isolation surface is set on the second annular surface 13 of the storage bag body 10, so that when the third chain part 51 and the fourth chain part 52 are locked, and when the first chain part 41 and the second chain part 42 are locked, it will only compress the first receiving cavity, while the second receiving cavity remains unchanged.

[0067] like Figure 1As shown, the telescopic surface 11 is annular with open ends. The first annular surface 12 and the second annular surface 13 are respectively arranged around the outer sides of opposite ends of the telescopic surface 11. The telescopic surface 11, the first annular surface 12, and the second annular surface 13 are all made of tear-resistant fabric to ensure the sturdy compressive strength of the storage bag body 10. Optionally, the outer surface of the fabric of the telescopic surface 11, the first annular surface 12, and the second annular surface 13 is coated with a waterproof layer to resist external and internal moisture. Furthermore, the fabric is made of 210D nylon, which is durable and lightweight. In a specific embodiment, one end of the first chain portion 41 extends from one side of the telescopic surface 11 to the periphery of the first annular surface 12, and one end of the second chain portion 42 extends from one side of the telescopic surface 11 to the periphery of the second annular surface 13. One end of the third chain portion 51 extends from one side of the telescopic surface 11 to a position close to the first chain portion 41, and one end of the fourth chain portion 52 extends from one side of the telescopic surface 11 to a position close to the second chain portion 42.

[0068] For convenient placement of clothing, one side of the first cover 20 is pivotally connected to one end of the telescopic surface 11, and one side of the second cover 30 is pivotally connected to the other end of the telescopic surface 11; the first cover 20 and the second cover 30 are pivotally connected to the same side of the telescopic surface 11. Optionally, both the first cover 20 and the second cover 30 are made of tear-resistant fabric to ensure load-bearing capacity; furthermore, the outer surfaces of both the first cover 20 and the second cover 30 are coated with a waterproof layer to resist external and internal moisture.

[0069] This storage bag also includes a first connecting zipper 70 and a second connecting zipper 80; the first connecting zipper 70 connects the storage bag body 10 and the first cover 20, and the second connecting zipper 80 connects the storage bag body 10 and the second cover 30, so as to store clothes. Optionally, the first connecting zipper 70 includes a first connecting chain 71 connected to the first cover 20, a second connecting chain 72 connected to the telescopic surface 11, and a first connecting pull head 73 slidably disposed on the first connecting chain 71 and the second connecting chain 72; the second connecting zipper 80 includes a third connecting chain 81 connected to the second cover 30, a fourth connecting chain 82 connected to the telescopic surface 11, and a second connecting pull head slidably disposed on the third connecting chain 81 and the second connecting chain 82. Thus, when the first connecting pull head 73 moves and locks the first connecting chain 71 and the second connecting chain 72, the first cover 20 is connected to the storage bag body 10; when the second connecting pull head moves and locks the third connecting chain 81 and the fourth connecting chain 82, the second cover 30 is connected to the storage bag body 10.

[0070] When using this storage bag, move the first connecting pull head 73 to open the first cover 20, or move the second connecting pull head to open the second cover 30, and place the clothes into the first or second receiving cavity. When there are many clothes, it is also necessary to move the first pull head 43 and the second pull head 53 to expand the telescopic surface 11 and increase the storage space of the first receiving cavity, and then pull the second pull head 53 to compress the first receiving cavity and reduce the overall size of the storage bag. Figure 2 As shown.

[0071] If it is necessary to further reduce the overall volume of the storage bag, the first pull tab 43 can be pulled closed to further compress the first receiving cavity, thereby further reducing the overall size of the storage bag, such as... Figure 3 As shown.

[0072] In other embodiments, the isolation surface of the storage bag is located within the space enclosed by the telescopic surface 11, dividing the storage bag into a double-layer storage space. That is, the first cover 20, the isolation surface and a part of the telescopic surface 11 form a first receiving cavity, and the second cover 20, the isolation surface and another part of the telescopic surface 11 form a second receiving cavity, so that when the telescopic surface 11 deforms, the first receiving cavity and the second receiving cavity can be expanded or compressed simultaneously.

[0073] In other embodiments, the storage bag does not include an isolation surface, in which case the first receiving cavity and the second receiving cavity are connected to form a whole receiving cavity.

[0074] In other embodiments, there are multiple second compression zippers 50. Each second compression zipper 50 includes a third chain portion 51 connected to the storage bag body 10 near the first annular surface 12, a fourth chain portion 52 connected to the storage bag body 10 near the second annular surface 13, and a second pull head 53 that engages with the third chain portion 51 and the fourth chain portion 52. The multiple third chain portions 51 and the multiple fourth chain portions 52 are arranged at intervals along the height direction of the storage bag body 10. In this way, when the first pull head 43 moves and locks the first chain portion 41 and the second chain portion 42, the telescopic surface 11 is compressed and deformed. When the multiple second pull heads 53 move sequentially and lock the third chain portion 51 and the fourth chain portion 52, the telescopic surface 11 is further compressed and deformed step by step. This allows the storage bag to have multiple levels of shrinkage and deformation after storing clothes, which can better meet the needs of daily use.

[0075] This specification and accompanying drawings are merely illustrative examples of this application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Therefore, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A storage bag, characterized in that, It includes a storage bag body (10), a first cover (20) and a second cover (30) respectively connected to opposite ends of the storage bag body (10), and a first compression zipper (40) and a second compression zipper (50); The storage bag body (10) includes a telescopic surface (11), and a first annular surface (12) and a second annular surface (13) connecting the opposite ends of the telescopic surface (11); The first compression zipper (40) includes a first chain portion (41) connecting the first annular surface (12), a second chain portion (42) connecting the second annular surface (13), and a first zipper head (43) engaging with the first chain portion (41) and the second chain portion (42); The second compression zipper (50) includes a third chain portion (51) connected to the storage bag body (10) near the first annular surface (12), a fourth chain portion (52) connected to the storage bag body (10) near the second annular surface (13), and a second zipper head (53) that engages with the third chain portion (51) and the fourth chain portion (52); The first cover (20), the second cover (30), and the telescopic surface (11) form a receiving cavity; When the second pull head (53) moves and locks the third chain part (51) and the fourth chain part (52), the telescopic surface (11) is compressed and deformed, and the receiving cavity is compressed; When the first pull head (43) moves and locks the first chain part (41) with the second chain part (42), the telescopic surface (11) is further compressed and deformed, and the receiving cavity is further compressed.

2. A storage bag, characterized in that, It includes a storage bag body (10), a first cover (20) and a second cover (30) respectively connected to opposite ends of the storage bag body (10), an isolation surface (60), and a first compression zipper (40) and a second compression zipper (50); The storage bag body (10) includes a telescopic surface (11), and a first annular surface (12) and a second annular surface (13) connecting the opposite ends of the telescopic surface (11); The first compression zipper (40) includes a first chain portion (41) connecting the first annular surface (12), a second chain portion (42) connecting the second annular surface (13), and a first zipper head (43) engaging with the first chain portion (41) and the second chain portion (42); The second compression zipper (50) includes a third chain portion (51) connected to the storage bag body (10) near the first annular surface (12), a fourth chain portion (52) connected to the storage bag body (10) near the second annular surface (13), and a second zipper head (53) that engages with the third chain portion (51) and the fourth chain portion (52); A portion of the first cover (20), the isolation surface (60), and the telescopic surface (11) forms a first receiving cavity, and another portion of the second cover (30), the isolation surface (60), and the telescopic surface (11) forms a second receiving cavity; When the second pull head (53) moves and locks the third chain part (51) and the fourth chain part (52), the telescopic surface (11) is compressed and deformed, and both the first receiving cavity and the second receiving cavity are compressed; When the first pull head (43) moves and locks the first chain portion (41) and the second chain portion (42), the telescopic surface (11) is further compressed and deformed, and both the first and second receiving cavities are further compressed.

3. A storage bag, characterized in that, It includes a storage bag body (10), a first cover (20) and a second cover (30) respectively connected to opposite ends of the storage bag body (10), an isolation surface (60), and a first compression zipper (40) and a second compression zipper (50); The storage bag body (10) includes a telescopic surface (11), and a first annular surface (12) and a second annular surface (13) connecting the opposite ends of the telescopic surface (11); The first compression zipper (40) includes a first chain portion (41) connecting the first annular surface (12), a second chain portion (42) connecting the second annular surface (13), and a first zipper head (43) engaging with the first chain portion (41) and the second chain portion (42); The second compression zipper (50) includes a third chain portion (51) connected to the storage bag body (10) near the first annular surface (12), a fourth chain portion (52) connected to the storage bag body (10) near the second annular surface (13), and a second zipper head (53) that engages with the third chain portion (51) and the fourth chain portion (52); The first cover (20), the isolation surface (60), and the telescopic surface (11) form a first receiving cavity, and the second cover (30) and the isolation surface (60) form a second receiving cavity; When the second pull head (53) moves and locks the third chain part (51) and the fourth chain part (52), the telescopic surface (11) is compressed and deformed, and the first receiving cavity is compressed; When the first pull head (43) moves and locks the first chain portion (41) with the second chain portion (42), the telescopic surface (11) is further compressed and deformed, and the first receiving cavity is further compressed.

4. A storage bag, characterized in that, It includes a storage bag body (10), a first cover (20) and a second cover (30) respectively connected to opposite ends of the storage bag body (10), and a first compression zipper (40) and a plurality of second compression zippers (50); The storage bag body (10) includes a telescopic surface (11), and a first annular surface (12) and a second annular surface (13) connecting the opposite ends of the telescopic surface (11); The first compression zipper (40) includes a first chain portion (41) connecting the first annular surface (12), a second chain portion (42) connecting the second annular surface (13), and a first zipper head (43) engaging with the first chain portion (41) and the second chain portion (42); Each of the second compression zippers (50) includes a third chain portion (51) connected to the storage bag body (10) near the first annular surface (12), a fourth chain portion (52) connected to the storage bag body (10) near the second annular surface (13), and a second zipper head (53) that engages with the third chain portion (51) and the fourth chain portion (52). The plurality of third chain portions (51) and the plurality of fourth chain portions (52) are arranged at intervals along the height direction of the storage bag body (10). The first cover (20), the second cover (30), and the telescopic surface (11) form a receiving cavity; When the multiple second pull heads (53) move in sequence and lock the third chain section (51) and the fourth chain section (52), the telescopic surface (11) is compressed and deformed, and the receiving cavity is compressed; When the first pull head (43) moves and locks the first chain part (41) and the second chain part (42), the telescopic surface (11) is further compressed and deformed step by step, and the receiving cavity is further compressed step by step.

5. A storage bag, characterized in that, It includes a storage bag body (10), a first cover (20) and a second cover (30) respectively connected to opposite ends of the storage bag body (10), an isolation surface (60), and a first compression zipper (40) and a second compression zipper (50); The storage bag body (10) includes a telescopic surface (11), and a first annular surface (12) and a second annular surface (13) connecting the opposite ends of the telescopic surface (11); The first compression zipper (40) includes a first chain portion (41) connecting the first annular surface (12), a second chain portion (42) connecting the second annular surface (13), and a first zipper head (43) engaging with the first chain portion (41) and the second chain portion (42); Each of the second compression zippers (50) includes a third chain portion (51) connected to the storage bag body (10) near the first annular surface (12), a fourth chain portion (52) connected to the storage bag body (10) near the second annular surface (13), and a second zipper head (53) that engages with the third chain portion (51) and the fourth chain portion (52). The plurality of third chain portions (51) and the plurality of fourth chain portions (52) are arranged at intervals along the height direction of the storage bag body (10). A portion of the first cover (20), the isolation surface (60), and the telescopic surface (11) forms a first receiving cavity, and another portion of the second cover (30), the isolation surface (60), and the telescopic surface (11) forms a second receiving cavity; When the multiple second pull heads (53) move in sequence and lock the third chain part (51) and the fourth chain part (52), the telescopic surface (11) is compressed and deformed, and both the first receiving cavity and the second receiving cavity are compressed; When the first pull head (43) moves and locks the first chain part (41) and the second chain part (42), the telescopic surface (11) is further compressed and deformed step by step, and both the first receiving cavity and the second receiving cavity are further compressed step by step.

6. A storage bag, characterized in that, It includes a storage bag body (10), a first cover (20) and a second cover (30) respectively connected to opposite ends of the storage bag body (10), an isolation surface (60), a first compression zipper (40) and a plurality of second compression zippers (50); The storage bag body (10) includes a telescopic surface (11), and a first annular surface (12) and a second annular surface (13) connecting the opposite ends of the telescopic surface (11); The first compression zipper (40) includes a first chain portion (41) connecting the first annular surface (12), a second chain portion (42) connecting the second annular surface (13), and a first zipper head (43) engaging with the first chain portion (41) and the second chain portion (42); Each of the second compression zippers (50) includes a third chain portion (51) connected to the storage bag body (10) near the first annular surface (12), a fourth chain portion (52) connected to the storage bag body (10) near the second annular surface (13), and a second zipper head (53) that engages with the third chain portion (51) and the fourth chain portion (52). The plurality of third chain portions (51) and the plurality of fourth chain portions (52) are arranged at intervals along the height direction of the storage bag body (10). The first cover (20), the isolation surface (60), and the telescopic surface (11) form a first receiving cavity, and the second cover (30) and the isolation surface (60) form a second receiving cavity; When the multiple second pull heads (53) move in sequence and lock the third chain part (51) and the fourth chain part (52), the telescopic surface (11) is compressed and deformed, and the first receiving cavity is compressed; When the first pull head (43) moves and locks the first chain part (41) and the second chain part (42), the telescopic surface (11) is further compressed and deformed step by step, and the first receiving cavity is further compressed step by step.

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