CN221284865U - Double-expansion case - Google Patents
Double-expansion case Download PDFInfo
- Publication number
- CN221284865U CN221284865U CN202323127726.5U CN202323127726U CN221284865U CN 221284865 U CN221284865 U CN 221284865U CN 202323127726 U CN202323127726 U CN 202323127726U CN 221284865 U CN221284865 U CN 221284865U
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- Prior art keywords
- opening
- bag body
- accommodating cavity
- expansion
- expansion surface
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- 230000009977 dual effect Effects 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The utility model discloses a double-expansion case, which comprises a case body, wherein the case body is internally provided with a containing cavity, a first opening communicated with the containing cavity is arranged on the case body, the first opening upwards bypasses the top of the case body from one side of the bottom of the case body and then extends to the other side of the bottom of the case body along the other side of the case body, the case body is provided with a first expansion surface connected to the edge of the first opening, and a first locking device is arranged between the two edges of the first opening; the bag body is provided with a second opening communicated with the accommodating cavity, the second opening bypasses the bottom of the bag body downwards from one side of the bag body and then extends to the other side of the bag body along the other side of the bag body, the bag body is provided with a second expansion surface connected to the edge of the second opening, and a second locking device is arranged between the two edges of the second opening. According to the utility model, the size of the accommodating cavity in the bag body can be adjusted in multiple stages, and the use flexibility is high.
Description
Technical Field
The utility model relates to the field of bags, in particular to a double-expansion bag.
Background
The luggage mainly comprises a luggage and a bag, is a collective name of various luggage and bags for containing things, comprises a common handbag, a hand bag, a knapsack, a plurality of draw-bar boxes and the like, and is mainly used for traveling, business trip, daily use and school.
The conventional bags are provided with accommodating cavities, and the sizes of the accommodating cavities are fixed, so that the accommodating cavities cannot be filled for the same bag if articles are few, and the accommodating cavities are not enough for use if articles are many, so that bags with a plurality of accommodating cavities of different sizes are required to be prepared.
In order to solve the technical problems, patent document No. 202121666818.9 and publication day 2021.12.07 disclose a capacity-expanding backpack, which comprises a first backpack body, wherein the periphery of the first backpack body is provided with a hem for expanding capacity; a capacity-expanding zipper forcing the hem to be folded is arranged on the peripheral side of the first bag body; the expansion zipper extends along the circumferential direction of the first bag body. The expansion zipper is pulled to fold or stretch the folded edge, so that the volume of the backpack can be changed according to the requirement, and the backpack is suitable for people to use.
The capacity-expanding knapsack with the structure can realize the capacity expansion function, but has only two use modes, namely, the capacity-expanding zipper is closed to fold the folded edge, the space in the state is small, and the capacity-expanding zipper is opened to unfold the folded edge to realize the capacity expansion of the space, so that the capacity-expanding knapsack is small in selectivity and cannot realize the adjustment of the size of the multi-stage space according to the size of the space.
Disclosure of Invention
The utility model aims to provide a double-expansion case, and by utilizing the structure of the double-expansion case, the size of a containing cavity in the case can be adjusted in multiple stages, so that the use flexibility is high.
In order to achieve the purpose, the double-expansion case comprises a case body, wherein the case body is internally provided with a containing cavity, a first opening communicated with the containing cavity is formed in the case body, the first opening upwards bypasses the top of the case body from one side of the bottom of the case body and then extends to the other side of the bottom of the case body along the other side of the case body, the case body is provided with a first expansion surface connected to the edge of the first opening, and a first locking device is arranged between the two edges of the first opening; the bag body is provided with a second opening communicated with the accommodating cavity, the second opening bypasses the bottom of the bag body downwards from one side of the bag body and then extends to the other side of the bag body along the other side of the bag body, the bag body is provided with a second expansion surface connected to the edge of the second opening, and a second locking device is arranged between the two edges of the second opening.
According to the structure, when the first locking device and the second locking device are all closed, the first opening and the second opening are closed, and the first expansion surface and the second expansion surface are folded, so that the accommodating cavity is the smallest; when the first locking device is closed and the second locking device is opened, the first expansion surface is folded, the second expansion surface is unfolded, and the accommodating cavity is enlarged; when the first locking device is opened and the second locking device is closed, the first expansion surface is unfolded, the second expansion surface is folded, and the accommodating cavity is enlarged; when the first locking device and the second locking device are all opened, the first opening and the second opening are opened, the first expansion surface and the second expansion surface are unfolded, and the accommodating cavity is largest. Therefore, through selecting the closing and opening of the first locking device and the second locking device, the accommodating cavities with various different sizes can be formed, and the size of the accommodating cavity in the bag body can be adjusted in multiple stages. Meanwhile, the first opening and the second opening are arranged upside down, so that the first locker can be opened or the second locker can be opened according to the occupied space of the articles placed in the bag body at the upper and lower positions of the bag body, and when the first locker and the second locker are opened, the upper and lower thickness of the bag body can be thickened, so that the upper and lower thickness proportion of the bag body can be basically consistent with the thickness proportion of the bag body which is not opened by the first locker and the second locker, and the bag is more flexible to use.
Further, the width of the upper end of the first expansion surface is larger than the width of the lower end; the upper end width of the second expansion surface is smaller than the lower end width. According to the structure, the first expansion surface or the second expansion surface forms a wedge shape when being unfolded, and the first expansion surface and the second expansion surface can form a quadrilateral when being unfolded, so that the flexibility of use is further improved.
Further, a third opening communicated with the accommodating cavity is arranged on the first expansion surface, and a third zipper is arranged on the third opening. Thus, the articles in the accommodating cavity can be conveniently taken and placed through the third opening.
Further, a fourth opening communicated with the accommodating cavity is arranged on the second expansion surface, and a fourth zipper is arranged on the fourth opening. Thus, the articles in the accommodating cavity can be conveniently taken and placed through the fourth opening.
Further, the first locking device is a first zipper, and the second locking device is a second zipper. The zipper has simple structure and low cost.
Further, the first expansion surface and the second expansion surface are flexible fabrics. This facilitates the folding and unfolding of the first and second expansion surfaces.
Further, the accommodating cavity comprises a first accommodating cavity and a second accommodating cavity, and a baffle plate connected to the inner side of the bag body is arranged between the first accommodating cavity and the second accommodating cavity. In this way, the articles are conveniently placed in the first accommodating cavity and the second accommodating cavity in a classified manner.
Further, the first opening is arranged on the bag body corresponding to the first accommodating cavity, and the second opening is arranged on the bag body corresponding to the second accommodating cavity. Thus, in the process of realizing the graded expansion, if only partial expansion is needed, the second opening is opened, the second accommodating cavity is used, the first accommodating cavity is not needed to be used, and if the first opening is opened, the first accommodating cavity is used.
Further, the width of the upper end of the first expansion surface is consistent with the width of the lower end of the second expansion surface. According to the structure, when the first expansion surface and the second expansion surface are both unfolded, a quadrangle can be formed, so that the upper and lower thickness proportion of the bag body can be consistent with the thickness proportion of the bag body which is not opened by the first locking device and the second locking device.
Drawings
FIG. 1 is a schematic diagram of the double-expansion tank of the present utility model after expansion.
FIG. 2 is a schematic illustration of a dual expansion tank of the present utility model without expansion.
FIG. 3 is a schematic side view of a double expansion tank after expansion.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 3, a dual expansion tank, in this embodiment, a backpack is described as an embodiment.
The dual-capacity-expansion backpack comprises a backpack body 1 and straps 16, wherein the backpack body 1 is internally provided with a containing cavity 10, the containing cavity 10 is divided into a first containing cavity 101 and a second containing cavity 102 by a partition board 1a, and the second containing cavity 102 is divided into a front containing cavity 1021 and a rear containing cavity 1022 by a front partition board 1 b.
The bag body 1 is provided with a first opening 11 communicated with the accommodating cavity 10, the first opening 11 upwards bypasses the top of the bag body from one side of the bottom of the bag body 1 and then extends to the other side of the bottom of the bag body along the other side of the bag body, the bag body 1 is provided with a first expansion surface 12 connected to the edge of the first opening, the first expansion surface 12 is made of flexible fabric for facilitating folding and unfolding of the first expansion surface 12, a first locking device 13 is arranged between two edges 110 of the first opening 11, the locking device 13 is a first zipper, and the first opening 11 can be conveniently opened or closed through the first zipper. In this embodiment, the first opening 11 is opened at a position of the bag body corresponding to the first accommodating cavity 101, in order to facilitate taking and placing of articles in the first accommodating cavity 101, a third opening 121 communicating with the first accommodating cavity 101 is provided on the first expansion surface 12, the third opening 121 extends upward from the middle of one side of the first expansion surface and then extends from the top to the middle of the other side of the first expansion surface, and a third zipper 122 is provided on the third opening 121. With this configuration, when the first expansion surface 12 is not used, that is, when the first zipper closes the first opening 11, the space of the first accommodating chamber 101 is not required, and the space of the second accommodating chamber 102 is only required. In this embodiment, the upper end width of the first expansion surface 12 is larger than the lower end width, so that when the first expansion surface expands, the first opening forms a wedge shape with a large upper side and a small lower side.
The bag body 1 is provided with a second opening 14 communicated with the second accommodating cavity 102, the second opening 14 bypasses the bottom of the bag body 1 downwards from one side of the bag body 1 and then extends to the other side of the bag body along the other side of the bag body, the bag body 1 is provided with a second expansion surface 15 connected to the edge of the second opening, the second expansion surface 15 is made of flexible fabric, 151 in fig. 3 is a folding line of the second expansion surface, a second locking device 17 is arranged between two edges of the second opening 14, and the second locking device 17 is a second zipper. The width of the upper end of the second expansion surface 15 is smaller than the width of the lower end, so that the second opening forms a wedge shape after being opened.
As another structure of this embodiment, in order to facilitate taking and placing an article from the second opening, a fourth opening communicating with the second accommodating cavity is provided on the second capacity-expanding surface, and a fourth zipper is provided on the fourth opening.
In this embodiment, when the first locking device and the second locking device are all closed, the first opening and the second opening are closed, and the first expansion surface and the second expansion surface are folded, so that the accommodating cavity is the smallest; when the first locking device is closed and the second locking device is opened, the first expansion surface is folded, the second expansion surface is unfolded, and the accommodating cavity is enlarged; when the first locking device is opened and the second locking device is closed, the first expansion surface is unfolded, the second expansion surface is folded, and the accommodating cavity is enlarged; when the first locking device and the second locking device are all opened, the first opening and the second opening are opened, the first expansion surface and the second expansion surface are unfolded, and the accommodating cavity is largest. Therefore, through selecting the closing and opening of the first locking device and the second locking device, the accommodating cavities with various different sizes can be formed, and the size of the accommodating cavity in the bag body can be adjusted in multiple stages. Meanwhile, the first opening and the second opening are arranged upside down, so that the first locker can be opened or the second locker can be opened according to the occupied space of the articles placed in the bag body at the upper and lower positions of the bag body, and when the first locker and the second locker are opened, the upper and lower thickness of the bag body can be thickened, so that the upper and lower thickness proportion of the bag body can be basically consistent with the thickness proportion of the bag body which is not opened by the first locker and the second locker, and the bag is more flexible to use.
The width of the upper end of the first expansion surface 12 is identical to the width of the lower end of the second expansion surface 15. With this structure, when the first expansion surface 12 and the second expansion surface 15 are both unfolded, a quadrangle can be formed, so that the upper and lower thickness ratio of the bag body can be consistent with the thickness ratio of the bag body which is not opened by the first zipper and the second zipper.
Claims (9)
1. The utility model provides a two dilatation cases and bags, includes the inclusion, has the holding chamber in the inclusion, its characterized in that: the bag body is provided with a first opening communicated with the accommodating cavity, the first opening upwards bypasses the top of the bag body from one side of the bottom of the bag body and then extends to the other side of the bottom of the bag body along the other side of the bag body, the bag body is provided with a first expansion surface connected to the edge of the first opening, and a first locking device is arranged between the two edges of the first opening; the bag body is provided with a second opening communicated with the accommodating cavity, the second opening bypasses the bottom of the bag body downwards from one side of the bag body and then extends to the other side of the bag body along the other side of the bag body, the bag body is provided with a second expansion surface connected to the edge of the second opening, and a second locking device is arranged between the two edges of the second opening.
2. A dual expansion tank as claimed in claim 1, wherein: the width of the upper end of the first expansion surface is larger than that of the lower end; the upper end width of the second expansion surface is smaller than the lower end width.
3. A dual expansion tank as claimed in claim 1, wherein: the first expansion surface is provided with a third opening communicated with the accommodating cavity, and the third opening is provided with a third zipper.
4. A dual expansion tank as claimed in claim 1, wherein: a fourth opening communicated with the accommodating cavity is arranged on the second expansion surface, and a fourth zipper is arranged on the fourth opening.
5. A dual expansion tank as claimed in claim 1, wherein: the first locking device is a first zipper, and the second locking device is a second zipper.
6. A dual expansion tank as claimed in claim 1, wherein: the first expansion surface and the second expansion surface are flexible fabrics.
7. A dual expansion tank as claimed in claim 1, wherein: the accommodating cavity comprises a first accommodating cavity and a second accommodating cavity, and a baffle connected to the inner side of the bag body is arranged between the first accommodating cavity and the second accommodating cavity.
8. The dual expansion tank of claim 7, wherein: the first opening is arranged on the bag body corresponding to the first accommodating cavity, and the second opening is arranged on the bag body corresponding to the second accommodating cavity.
9. A dual expansion tank as claimed in claim 2, wherein: the width of the upper end of the first expansion surface is consistent with the width of the lower end of the second expansion surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323127726.5U CN221284865U (en) | 2023-11-20 | 2023-11-20 | Double-expansion case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323127726.5U CN221284865U (en) | 2023-11-20 | 2023-11-20 | Double-expansion case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221284865U true CN221284865U (en) | 2024-07-09 |
Family
ID=91753429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323127726.5U Active CN221284865U (en) | 2023-11-20 | 2023-11-20 | Double-expansion case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221284865U (en) |
-
2023
- 2023-11-20 CN CN202323127726.5U patent/CN221284865U/en active Active
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| GR01 | Patent grant |