A multi-functional bag
By designing the storage layer structure and opening and closing mechanism of the multi-functional bag, the problem of inconvenient bag folding was solved, realizing the functions of convenient folding and hidden storage compartments, thus improving the bag's flexibility and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU SHENGYEYUELAI IMPEL LEATHER CO LTD
- Filing Date
- 2025-07-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing multi-functional bags require multiple folds when folding, which is inconvenient to operate, and the position of the compartments after folding is fixed, making them inflexible in use.
A multifunctional bag is designed, comprising a first storage layer, a second storage layer, and a storage interlayer. The bag body can be easily folded and unfolded through a second opening and closing device. The third storage cavity is located in the middle position. The second opening and closing device is set at the bottom of the bag body for easy folding and hiding. Combined with a waterproof layer, it improves the flexibility of use.
It enables convenient folding and unfolding of the bag, improves the flexibility of use, prevents it from getting wet, and can hide and store the interlayer when not in use, meeting the needs of different users.
Smart Images

Figure CN224291475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag technology, specifically to a multifunctional bag. Background Technology
[0002] As living standards and consumption levels continue to improve, all kinds of bags have become indispensable accessories for people. Not only have their practicality improved, but their decorative value has also expanded. A variety of backpacks made of different materials such as genuine leather, plastic, polyester, canvas, cotton and linen can be created to meet the different tastes and needs of consumers, so as to conform to the development trend of fashion.
[0003] For example, Chinese patent application number 202322473433.6, published on March 29, 2024, discloses a portable multi-functional bag. The key technical features include: a bag body; a main shoulder strap mounted on the back of the bag body and fixed at both ends to the bottom of the bag body; a length adjustment component threaded onto the main shoulder strap for adjusting its length; at least one expansion section located within the bag body, which can be folded for storage or unfolded within the bag body; and a storage pocket located on the back of the bag body with an independent internal compartment. The main shoulder strap can be adjusted as needed to allow for crossbody, backpack, or single-shoulder use. The expansion section increases the bag's capacity or can be closed to reduce its volume. Furthermore, the bag can be folded for storage, offering flexibility and portability.
[0004] The aforementioned literature describes a small storage bag on the back of the bag for folding and storage. However, since this small storage bag is only located on the back of the bag, when folding, all other parts of the bag besides the small storage bag need to be stored inside it. During the folding process, the length and width of the fold need to be considered so that the folded bag can be stored inside the small storage bag. This requires multiple folds to achieve storage, making it inconvenient to fold. Utility Model Content
[0005] The purpose of this utility model is to provide a multi-functional bag that can store the folded crossbody bag by turning the interlayer outward when the bag is not in use, and can store items by storing items through the interlayer when the crossbody bag is in use. When used as the bag body, the storage bag is hidden inside the bag body and is easy to fold.
[0006] This utility model provides the following technical solution: a multifunctional bag, including a bag body, the bag body including a first accommodating layer, an accommodating interlayer and a second accommodating layer, the two sides of the accommodating interlayer are respectively connected to the first accommodating layer and the second accommodating layer, and after connection, a first common connecting layer and a second common connecting layer are respectively formed inside the bag body, a third accommodating cavity is formed between the first common connecting layer and the second common connecting layer inside the bag body and is arranged in parallel, the first accommodating cavity is formed between the first common connecting layer and the first accommodating layer, the second accommodating cavity is formed between the second common connecting layer and the second accommodating layer, the third accommodating cavity is disposed between the first accommodating layer and the second accommodating layer, and an opening and closing device is provided at the bottom of the third accommodating cavity. After the third accommodating cavity is opened by the opening and closing device, the bag body is folded from the lower end along the outer side of the first accommodating layer and the outer side of the second accommodating layer to the upper end of the bag body for wrapping, and the folded bag body is stored in the third accommodating cavity.
[0007] The above design, through the first, second, and interlayered containment layers, forms three parallel cavities: a first cavity, a second cavity, and a third cavity. The third cavity is located in the middle. A second opening / closing device is provided at the bottom of the third cavity. When not in use, the backpack can be removed via the shoulder straps, and the third cavity can be opened using the second opening / closing device. This causes the lower part of the backpack to fold upwards along the outer edges of the first and second containment layers, exposing the interior of the third cavity and simultaneously wrapping the folded backpack. Closing the backpack again using the second opening / closing device completes the storage process. Because the second opening / closing device for the third cavity is located at the bottom of the backpack and in the middle of the cavity, folding is as simple as opening the second device and folding upwards along it. The bag can be folded without requiring multiple folds of other, more distant parts to achieve its intended storage capacity. When using the backpack, simply open the second opening mechanism and fold it down from the top of the bag along the outer sides of the first and second storage layers to restore its original shape. Items can be stored in the third storage cavity located outside the bag and between the first and second storage layers. Inside the bag, the first, second, and third storage layers are separated by the first and second common connecting layers for storing different items. When in use, the third storage cavity is located within the bag's interior, and its upper end can be hidden inside the bag by pulling the first opening mechanism. Items can be stored through the third storage cavity and the different storage layers within the bag, conveniently accommodating various needs for efficient and practical use.
[0008] Furthermore, the upper end of the bag body has two oppositely arranged ring straps, and a shoulder strap is provided at the connection port. The shoulder strap can be detachably fastened to the ring straps by a connecting buckle.
[0009] The above settings allow for detachable fastening of the bag to the straps via the connecting buckles when needed, making it easy to carry the bag using the shoulder straps.
[0010] Furthermore, the first opening and closing device is arranged along the straight line direction of the oppositely arranged ring belt. After the first opening and closing device opens the package, an opening is formed at the upper end of the package. The second opening and closing device is arranged along the outer edge of the bottom of the receiving interlayer.
[0011] The above configuration allows the bag to be opened or closed via a pair of opening and closing devices, enabling the placement of items inside the bag. The second opening and closing device allows the storage compartment to be opened or closed, facilitating the placement of items within the storage compartment and enabling the bag to be wrapped when not in use.
[0012] Furthermore, the first accommodating layer is provided with two or more partition layers.
[0013] The above setup allows for the placement of different items on the first divider layer of the first storage layer, preventing clutter.
[0014] Furthermore, the second opening and closing device is disposed between the first common connection layer and the second common connection layer, forming a cavity between the first accommodating layer and the second accommodating layer, the third accommodating cavity is located inside the cavity, the second opening and closing device is located outside the cavity, and the extension direction of the first opening and closing device is parallel to the extension direction of the second opening and closing device.
[0015] With the above configuration, since the third receiving cavity is located inside the enclosure, the third receiving cavity can be hidden through the enclosure. Furthermore, the opening and closing device one and the opening and closing device two are arranged in parallel, which makes it easy to open the opening and closing device two and then fold it over without being affected by the opening and closing device one.
[0016] Furthermore, both the inner surfaces of the first common connection layer and the inner surfaces of the second common connection layer are provided with waterproof layers.
[0017] With the above configuration, after the first and second common connection layers are closed by the opening and closing device 2, the inner surfaces of the first and second common connection layers are exposed to the outside. The waterproof layers on the inner surfaces of the first and second common connection layers can prevent the stored crossbody bag from getting wet.
[0018] Furthermore, the second opening and closing device is a two-way zipper.
[0019] The above settings make it easy to open or close the bag so that it can be stored away when not in use.
[0020] Furthermore, the first and second receiving cavities are symmetrically arranged about the third receiving cavity.
[0021] The above configuration ensures that the first and second receiving cavity components housed within the third receiving cavity have the same area, facilitating folding and storage.
[0022] Furthermore, the bottom of the third receiving cavity is flush with the bottom of the second receiving cavity and the bottom of the first receiving cavity.
[0023] The above design further ensures that the third, second, and first accommodating cavities are at the same height, facilitating folding. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the shoulder strap being connected to the bag body in this utility model.
[0025] Figure 2 This is a side view of the present invention.
[0026] Figure 3 This is a schematic diagram of the opening and closing device in the present invention in the open state.
[0027] Figure 4 This is a rear view of the present invention.
[0028] Figure 5 This is the front view of the present invention.
[0029] Figure 6 This is a schematic diagram of the opening and closing device 2 in the open state in this utility model.
[0030] Figure 7 This is a schematic diagram of the opening and closing device 2 in the closed state in this utility model.
[0031] Figure 8 This is a schematic diagram of the package after it has been stored in this utility model. Detailed Implementation
[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0033] like Figure 1-8 As shown, this utility model provides a multi-functional bag. In this embodiment, it is a crossbody bag, including a bag body 1 and a shoulder strap 2. The upper end of the bag body 1 has two oppositely arranged loop straps 3. The shoulder strap 2 is provided with a connecting buckle 4. The shoulder strap 2 can be detachably fastened to the loop strap 3 through the connecting buckle 4. In this way, when the crossbody bag is needed, the shoulder strap 2 can be connected to the bag body 1, making it convenient to carry the crossbody bag through the shoulder strap 2.
[0034] like Figure 2-3As shown in Figure 5, an opening and closing device 5 is provided at the upper end of the bag body 1 and between the two rings 3. The opening and closing device 5 is arranged along the straight line direction of the oppositely arranged rings 3. After the bag body 1 is opened by the opening and closing device 5, an opening is formed at the upper end of the bag body 1. The bag body 1 includes a first accommodating layer 7, an accommodating interlayer, and a second accommodating layer 8. The two sides of the accommodating interlayer are respectively connected to the first accommodating layer 7 and the second accommodating layer 8, and after connection, a first common connecting layer 18 and a second common connecting layer 19 are formed inside the bag body 1. A third accommodating cavity 17 is formed between the first common connecting layer 18, the second common connecting layer 19, and the accommodating interlayer inside the bag body 1. The third accommodating cavity 17 is located between the first accommodating layer 7 and the second accommodating layer 8. Two or more partition layers 9 are provided in the first accommodating layer 7, and a partition layer 20 is provided on the outside of the second accommodating layer 8, so that different items can be placed on the partition layers 9 of the first accommodating layer 7 and the partition layers 20 of the second accommodating layer 8 respectively, avoiding confusion.
[0035] like Figure 2-3 As shown in Figure 8, an opening and closing device 2 is provided on the lower end of the first common connection layer 18 and the second common connection layer 19. The first common connection layer 18 is connected to the first receiving layer 7 to form a first receiving cavity, and the second common connection layer 19 is connected to the second receiving layer 8 to form a second receiving cavity. After the opening and closing device 2 6 closes the outer edges of the first common connection layer 18 and the second common connection layer 19, a third receiving cavity 17 is formed outside the package 1 and between the first receiving layer 7 and the second receiving layer 8. After the third receiving cavity 17 is opened by the opening and closing device 2 6, refer to Figure 2 In the XX direction, from the lower end of the bag body 1, the outer sides of the first and second storage layers 15 and 16 are respectively folded towards the upper end of the bag body 1. After folding, the bag body 1 is wrapped, while the inner side 13 of the first common connecting layer and the inner side 14 of the second common connecting layer are exposed. By closing the opening and closing device 26, the folded bag body 1 is wrapped to form a storage bag 20 that is easy to carry and occupies little space. In this embodiment, the inner side of the first common connecting layer 18 and the inner side of the second common connecting layer 19 are provided with a waterproof layer. The waterproof layer is made of waterproof fabric. After the first common connecting layer 18 and the second common connecting layer 19 are closed by the opening and closing device 26, the waterproof layer can prevent the stored crossbody bag from getting wet.
[0036] like Figure 2-3As shown, in this embodiment, the opening and closing device 5 is a zipper, and the opening and closing device 6 is a two-way zipper. Inside the bag body 1, the first accommodating layer 7 and the third accommodating cavity 17 are separated by the first common connecting layer 18, and the second accommodating layer 8 and the third accommodating cavity 17 are separated by the second common connecting layer 19, so that the items stored in the bag body 1 can be placed separately to avoid confusion. Inside the bag body, the first accommodating cavity and the second accommodating cavity are symmetrically arranged about the third accommodating cavity 17; the bottom of the third accommodating cavity 17 is flush with the bottom of the second accommodating cavity and the bottom of the first accommodating cavity.
[0037] The working principle of this utility model is as follows: When the backpack is not in use, the shoulder straps 2 connected to the bag body 1 are removed. Then, the storage compartments are opened using the opening and closing device 26, allowing the lower end of the bag body 1 to fold upwards along the outer sides of the first storage layer 15 and the second storage layer 16. After folding, the inner sides of the first common connecting layer 13 and the second common connecting layer 14 are exposed. At the same time, the folded bag body 1 and the removed shoulder straps 2 are wrapped. Then, the opening and closing device 26 is used to close the bag body 1, thus completing the storage of the bag body 1. When using the backpack, by opening the opening and closing device 26, the shoulder straps 2 are opened from the upper end of the bag body 1 along the outer sides of the first and second storage layers 15 and 16, respectively. The outer side 15 of the storage layer and the outer side 16 of the second storage layer can be folded down towards the bottom of the bag body 1 to restore the original shape of the bag body 1. At the same time, items can be stored in the storage compartment outside the bag body 1 and located between the first storage layer 7 and the second storage layer 8, and different items can be stored in the first storage layer 7, the second storage layer 8 and the third storage cavity 17 inside the bag body 1. In this way, when the backpack is not in use, the folded crossbody bag can be stored by folding the third storage cavity outward. When the crossbody bag is in use, items can be stored through the third storage cavity and different storage layers inside the bag body 1, which can conveniently meet different needs for reasonable use and high practicality.
Claims
1. A multi-functional bag, comprising a bag body, characterized in that: The package includes a first accommodating layer, an accommodating interlayer, and a second accommodating layer. The two sides of the accommodating interlayer are connected to the first and second accommodating layers respectively, and after connection, a first common connecting layer and a second common connecting layer are formed inside the package. A third accommodating cavity is formed between the first and second common connecting layers inside the package. A first accommodating cavity is formed between the first common connecting layer and the first accommodating layer, and a second accommodating cavity is formed between the second common connecting layer and the second accommodating layer. The third accommodating layer is disposed between the first and second accommodating layers and is parallel to them. An opening and closing device two is provided at the bottom of the third accommodating cavity, and an opening and closing device one is provided at the top of the first and second accommodating layers. After the third accommodating cavity is opened by the opening and closing device two, the package is folded from the bottom of the package along the outside of the first and second accommodating layers to the top of the package to wrap it, and the folded package is stored in the third accommodating cavity.
2. A multi-functional bag according to claim 1, characterized in that: The upper end of the bag has two oppositely arranged ring straps, and a shoulder strap is provided at the connection port. The shoulder strap can be detachably fastened to the ring straps by a connecting buckle.
3. A multi-functional bag according to claim 1, characterized in that: The first opening and closing device is arranged along the straight line of the oppositely arranged ring. After the first opening and closing device opens the package, an opening is formed at the upper end of the package. The second opening and closing device is arranged along the outer edge of the bottom of the receiving interlayer.
4. A multi-functional bag according to claim 1, characterized in that: The first accommodating layer has two or more partition layers.
5. A multi-functional bag according to claim 1, characterized in that: One of the opening and closing devices is a zipper.
6. A multi-functional bag according to claim 1, characterized in that: The second opening and closing device is disposed between the first common connection layer and the second common connection layer, forming a cavity between the first accommodating layer and the second accommodating layer, the third accommodating cavity is located inside the cavity, the second opening and closing device is located outside the cavity, and the extension direction of the first opening and closing device is parallel to the extension direction of the second opening and closing device.
7. A multi-functional bag according to claim 6, characterized in that: Both the inner surfaces of the first common connection layer and the inner surfaces of the second common connection layer are provided with waterproof layers.
8. A multi-functional bag according to claim 1, characterized in that: The second opening and closing device is a two-way zipper.
9. A multi-functional bag according to claim 1, characterized in that: Within the package, the first and second receiving cavities are symmetrically arranged about the third receiving cavity.
10. A multi-functional bag according to claim 9, characterized in that: The bottom of the third receiving cavity is flush with the bottom of the second receiving cavity and the bottom of the first receiving cavity.