A package with an adaptive extended wet and dry compartment system
By introducing an adaptive expandable dry and wet compartment system into the backpack, which uses expandable bags and waterproof fabric to separate dry and wet items, the problem of insufficient backpack capacity is solved, storage space is expanded, and the independent storage of wet items is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU WANGBULIAO LEATHER CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-06-30
AI Technical Summary
The shoe compartment in existing backpacks takes up space, reducing the backpack's capacity and failing to meet users' needs for more storage space.
The system employs an adaptive expandable dry and wet compartment system, which uses a telescopic bag to separate the main package from the telescopic package. The telescopic package can be retracted or expanded to form independent storage compartments. The waterproof telescopic bag serves as a physical barrier to achieve separate storage of dry and wet items.
Without increasing the backpack's size and weight, the storage space has been expanded to meet users' storage needs, and the waterproof stretchable bag ensures that wet items can be stored independently without affecting dry items.
Smart Images
Figure CN224420367U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage technology, and in particular to a bag with an adaptive expandable dry and wet compartment system. Background Technology
[0002] To facilitate travel, many backpacks now integrate shoe compartments. For example, Chinese Patent Publication No. CN204015476U describes a reinforced backpack with a shoe compartment. This backpack includes a main body with a shoe compartment at its bottom. The shoe compartment and the main body's internal storage compartment are separated by a retractable shoe bag. The shoe compartment closes via a zippered closure on the front of the main body, which has ventilation holes. The shoe bag is made of waterproof material, and the shoe strap is coated with silicone. The top of the backpack also has a handle, which includes a flexible plastic tube with an internal steel wire and a plastic grip with ventilation holes. However, the shoe compartment in this backpack reduces its overall capacity, making it less suitable for users who need more storage space for shoes. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a package with an adaptive extended dry and wet compartment system, thereby solving the technical problems existing in the prior art.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a bag with an adaptive expandable wet and dry compartment system, including a main bag body and a telescopic bag body located at the bottom of the main bag body. The main bag body and the telescopic bag body are separated by a telescopic bag. The telescopic bag and the main bag body form a first storage compartment, and the telescopic bag and the telescopic bag body form a second storage compartment. The telescopic bag body includes a bottom fabric and a telescopic fabric arranged along the edge of the bottom fabric. The upper end of the telescopic fabric is connected to the bottom of the main bag body, and the lower end of the telescopic fabric is connected to the bottom fabric. A first zipper for opening and closing the telescopic fabric is provided between the bottom fabric and the bottom of the main bag body. The first zipper surrounds the telescopic bag body, and the beginning and end of the first zipper overlap. A second zipper for opening the second storage compartment is provided on the telescopic fabric. The principle of this invention is as follows: When the telescopic bag is in the retracted state, the first zipper is closed, and the bottom fabric is close to the bottom of the main bag, serving as the bottom surface of the main bag. The first storage compartment inside the main bag is unaffected, and the second storage compartment inside the telescopic bag is at its minimum state. When the telescopic bag is in the extended state, the first zipper is opened, and the bottom fabric moves away from the main bag. The first storage compartment inside the main bag is unaffected, and the second storage compartment inside the telescopic bag is at its maximum state, capable of accommodating items such as shoes that need to be stored separately. When the telescopic bag is in the extended state, if too many items are stored inside, the items will be squeezed into the telescopic bag. At this time, the telescopic bag occupies the space of the first storage compartment inside the main bag, forming an adaptive expansion. When the telescopic bag is in the extended state and there are no items stored inside, the first storage compartment inside the main bag can expand downwards through the telescopic bag.
[0005] As an improvement, the first zipper includes a first tooth, a second tooth, and a slider; the first tooth includes a first loop section and a first end section, the first loop section is disposed along the upper end of the stretchable fabric, the beginning of the first end section is connected to the end of the first loop section, and the end of the first end section is fixed at the middle position of the stretchable fabric; the second tooth includes a second loop section and a second end section, the second loop section is disposed along the lower end of the stretchable fabric, the beginning of the second end section is connected to the end of the second loop section, and the end of the second end section is fixed at the middle position of the stretchable fabric and corresponds to the end of the first end section.
[0006] As an improvement, the first zipper is located at both the beginning and end of the telescopic bag body on the back side, while the second zipper is located on the front side of the telescopic bag body.
[0007] As an improvement, the stretchable bag is made of waterproof fabric sewn together.
[0008] The beneficial effects of this utility model compared with the prior art are:
[0009] Waterproof expandable bags act as a physical barrier, offering far greater reliability than simple dividers or waterproof covers. The wet zone is adjustable in size, compressing to save space when empty and expanding to accommodate more when fully loaded. Independent compartment openings allow for easy access to wet items without affecting the main pack. The expandable design ensures that the extended functionality adds almost no volume or weight to the backpack when not in use. Attached Figure Description
[0010] Figure 1 This is a diagram showing the retractable backpack body on the back in its retracted state.
[0011] Figure 2 This is a diagram showing the unfolded state of the retractable bag on the back of the backpack.
[0012] Figure 3 This is a diagram showing the backpack in its unfolded, telescopic shape.
[0013] Figure 4 This is a diagram showing the backpack with the front retractable body open. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings.
[0015] like Figures 1 to 4 As shown, a bag with an adaptive expandable wet and dry compartment system includes a main bag body 1 and a telescopic bag body 2 located at the bottom of the main bag body 1. The main bag body 1 can be a cycling bag, hiking bag, mountaineering bag, etc., and the telescopic bag body 2 can store wet / dirty items such as umbrellas, wet towels, clothes changed after exercise, and swimming equipment.
[0016] like Figures 1 to 4 As shown, the main bag body 1 and the telescopic bag body 2 are separated by a telescopic bag 5, which is made of waterproof fabric and serves as a physical barrier with a reliability far exceeding that of simple partitions or waterproof covers. The telescopic bag 5 and the main bag body 1 form a first storage compartment, and the telescopic bag 5 and the telescopic bag 2 form a second storage compartment; the telescopic bag 5 can extend into either the main bag body 1 or the telescopic bag 2.
[0017] like Figures 1 to 4As shown, the telescopic bag body 2 includes a bottom fabric 21 and a telescopic fabric 22 arranged along the edge of the bottom fabric 21; the shape of the bottom fabric 21 is similar to the bottom shape of the main bag body 1, and the bottom fabric 21 has a certain rigidity, providing good shaping and support; the telescopic fabric 22 is a flexible fabric that can be folded and stretched, the upper end of the telescopic fabric 22 is connected to the bottom of the main bag body 1, and the lower end of the telescopic fabric 22 is connected to the bottom fabric 21; a first zipper 3 is provided between the bottom fabric 21 and the bottom of the main bag body 1 to retract the telescopic fabric 22, the first zipper 3 surrounds the telescopic bag body 2, and the beginning and end of the first zipper 3 overlap, so that the telescopic bag body 2 can be fully expanded after opening the first zipper 3; a second zipper 4 is provided on the telescopic fabric 22 to open the second storage compartment, the beginning and end of the first zipper 3 are both located on the back of the telescopic bag body 2, and the second zipper 4 is located on the front of the telescopic bag body 2.
[0018] like Figures 1 to 4 As shown, the first zipper 3 includes a first tooth 31, a second tooth 32, and a zipper pull 33; the first tooth 31 includes a first loop section and a first closing section, the first loop section is disposed along the upper end of the stretchable fabric, the beginning of the first closing section is connected to the end of the first loop section, and the end of the first closing section is fixed at the middle position of the stretchable fabric 22; the second tooth 32 includes a second loop section and a second closing section, the second loop section is disposed along the lower end of the stretchable fabric, the beginning of the second closing section is connected to the end of the second loop section, and the end of the second closing section is fixed at the middle position of the stretchable fabric 22 and corresponds to the end of the first closing section.
[0019] The principle of this invention is as follows: When the telescopic bag 2 is in the retracted state, the first zipper 3 is closed, and the bottom fabric 21 is close to the bottom of the main bag 1, serving as the bottom surface of the main bag 1. The first storage compartment inside the main bag 1 is unaffected, and the second storage compartment inside the telescopic bag 2 is in its minimum state. When the telescopic bag 2 is in the extended state, the first zipper 3 is opened, and the bottom fabric 21 moves away from the main bag 1. The first storage compartment inside the main bag 1 is unaffected, and the second storage compartment inside the telescopic bag 2 is in its maximum state, capable of accommodating items such as shoes that need to be stored separately. When the telescopic bag 2 is in the extended state, if too many items are stored inside, the items will be squeezed into the telescopic bag 5. At this time, the telescopic bag 5 occupies the space of the first storage compartment inside the main bag 1, forming an adaptive expansion. When the telescopic bag 2 is in the extended state and there are no items stored inside, the first storage compartment inside the main bag 1 can expand downward through the telescopic bag 5.
Claims
1. A bag with an adaptive expandable wet and dry compartment system, comprising a main bag body and a telescopic bag body disposed at the bottom of the main bag body, characterized in that: The main bag body and the telescopic bag body are separated by a telescopic bag. The telescopic bag and the main bag body form a first storage compartment, and the telescopic bag and the telescopic bag body form a second storage compartment. The telescopic bag body includes a bottom fabric and a telescopic fabric set along the edge of the bottom fabric. The upper end of the telescopic fabric is connected to the bottom of the main bag body, and the lower end of the telescopic fabric is connected to the bottom fabric. A first zipper for retracting the telescopic fabric is provided between the bottom fabric and the bottom of the main bag body. The first zipper surrounds the telescopic bag body, and the beginning and end of the first zipper overlap. A second zipper for opening the second storage compartment is provided on the telescopic fabric.
2. A package with an adaptive extended wet and dry compartment system according to claim 1, characterized in that: The first zipper includes a first tooth, a second tooth, and a slider; the first tooth includes a first loop section and a first end section, the first loop section is disposed along the upper end of the stretchable fabric, the beginning of the first end section is connected to the end of the first loop section, and the end of the first end section is fixed in the middle position of the stretchable fabric; the second tooth includes a second loop section and a second end section, the second loop section is disposed along the lower end of the stretchable fabric, the beginning of the second end section is connected to the end of the second loop section, and the end of the second end section is fixed in the middle position of the stretchable fabric and corresponds to the end of the first end section.
3. A package with an adaptive extended wet and dry compartment system according to claim 2, characterized in that: The first zipper is located at both the beginning and end of the retractable bag body on the back side, while the second zipper is located on the front side of the retractable bag body.
4. A package with an adaptive extended wet and dry compartment system according to claim 1, characterized in that: The stretchable bag is made of waterproof fabric sewn together.