Outdoor seamless waterproof backpack
By using a combination of sponge support pad, ePTFE composite film fabric layer and wear-resistant PU coating in the backpack, combined with thermal welding and Velcro technology, the problem of insufficient waterproofing during outdoor use is solved, achieving seamless sealing and high Waterproof performance improves the comfort and durability of the backpack.
Patent Information
- Application Number
- CN202420580929.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-25
AI Technical Summary
When using the existing backpack outdoors, especially in rainy and snowy weather, internal items are easily wet due to insufficient sealing at the zipper, which cannot be effectively waterproof.
A seamless waterproof backpack is designed, using sponge support pad and ePTFE composite film fabric layer combined with wear-resistant PU coating, connecting the waterproof fabric layer through thermal welding, and using Velcro hook and wool surface to achieve seamless sealing to prevent The rain enters.
It effectively improves the waterproof and wear resistance of the backpack, ensuring that the inside of the backpack is dry, especially when used in rainy and snowy weather, avoiding rainwater seepage and enhancing the comfort and durability of use.
Smart Images

Figure CN222194397U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backpacks, in particular to an outdoor seamless waterproof backpack. Background Art
[0002] Backpacks refer to bags that are carried on the back. The materials are diverse. Bags made of leather, plastic, polyester, canvas, nylon, cotton and linen are leading the fashion trend. In an era where individuality is increasingly flaunted, various styles such as simplicity, retro, and cartoon also cater to the needs of fashionable people to show off their individuality from different aspects. The styles of bags have also expanded from traditional business bags, school bags, and travel bags to pencil cases, coin purses, and small sachets. Backpacks in the prior art are not waterproof enough, especially when using backpacks outdoors. Once encountering rainy and snowy weather, the items in the backpack will get wet, especially the zipper of the backpack is the most susceptible to water seepage, and the zipper is often also a location with relatively poor sealing. For this reason, we propose an outdoor seamless waterproof backpack. Utility Model Content
[0003] In order to solve the above problems, the utility model provides an outdoor seamless waterproof backpack. The utility model solves the problem that the backpacks in the prior art are insufficient in terms of waterproofness, especially when the backpack is used outdoors, once it encounters rainy and snowy weather, the items in the backpack will get wet, especially the zipper of the backpack is the most likely place for water to seep, and the zipper is often also the location where the sealing is relatively poor.
[0004] The utility model discloses an outdoor seamless waterproof backpack, comprising a backpack body, the backpack body comprising a sponge support pad, a waterproof fabric layer is arranged on the outer side of the sponge support pad, a wear-resistant coating is arranged on the side of the waterproof fabric layer away from the sponge support pad, connecting belts are arranged at both ends of one side above the backpack body, a Velcro hook surface is arranged on the side of the connecting belt away from the backpack body, two Velcro fur surfaces are arranged on the upper end of the backpack body away from the connecting belt, a first connecting ring is arranged in the middle of the two Velcro fur surfaces, two first buckles are arranged on the first connecting ring, the first buckle is fixedly connected to the shoulder strap, the shoulder strap is fixedly connected to the second buckle at one end away from the first buckle, second connecting rings are arranged on both sides of the lower end of the backpack body, and the second buckle and the second connecting ring are clamped with each other.
[0005] In the above solution, the joints of the waterproof fabric layers are fixedly connected by heat welding.
[0006] In the above solution, the waterproof fabric layer is an ePTFE composite fabric layer.
[0007] In the above solution, the wear-resistant coating is a PU coating.
[0008] In the above solution, a shoulder strap is provided at the upper end of the shoulder strap.
[0009] In the above solution, the backpack body is provided with a handle between the two Velcro surfaces.
[0010] In the above solution, backpack side pockets are provided on both sides of the backpack body.
[0011] The advantages and beneficial effects of the utility model are as follows: the utility model provides an outdoor seamless waterproof backpack, the waterproof fabric layer effectively ensures the waterproof performance of the backpack body, the wear-resistant coating increases the wear resistance of the backpack body, the waterproof fabric layer connected by heat welding can achieve seamless connection between the joints of the waterproof fabric layer, thereby avoiding the phenomenon of rainwater entering the inside of the backpack body through the gaps in the fabric, the upper end of the backpack body after rolling up is sealed, and the Velcro hook surface and the Velcro fleece surface cooperate with each other so that the connecting belt can seal the upper end of the backpack body after rolling up. The waterproof backpack has a simple structure and good waterproof performance. The backpack body is seamlessly connected, and the upper end is sealed by rolling up, which effectively avoids the phenomenon of rainwater entering the inside of the backpack body through the gaps in the fabric, thereby improving the waterproof performance of the backpack body. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is a back view of the utility model;
[0015] Figure 3 It is a cross-sectional view of the backpack body of the present utility model.
[0016] In the figure: 1, backpack body 101, sponge support pad 102, waterproof fabric layer 103, wear-resistant coating 2, connecting belt 3, Velcro hook surface 4, Velcro fleece surface 5, first connecting ring 6, first buckle 7, shoulder strap 8, second buckle 9, second connecting ring 10, shoulder strap 11, handle 12, backpack side pocket. DETAILED DESCRIPTION
[0017] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
[0018] like Figure 1-3 As shown, the utility model is an outdoor seamless waterproof backpack, comprising a backpack body 1, the backpack body 1 comprising a sponge support pad 101, a waterproof fabric layer 102 is arranged on the outside of the sponge support pad 101, a wear-resistant coating 103 is arranged on the side of the waterproof fabric layer 102 away from the sponge support pad 101, the sponge support pad 101 constitutes the overall supporting structure of the backpack body 1, so that the backpack body 1 is more convenient to be placed upright, the waterproof fabric layer 102 effectively guarantees the waterproof performance of the backpack body 1, and the wear-resistant coating 103 increases the wear resistance of the backpack body 1, connecting belts 2 are arranged on both ends of one side above the backpack body 1, a Velcro hook surface 3 is arranged on the side of the connecting belt 2 away from the backpack body 1, and two Velcro fur surfaces 4 are arranged on the upper end of the side of the backpack body 1 away from the connecting belt 2. When the backpack body 1 is sealed, the upper end of the backpack is rolled up after the upper end of the backpack body 1 is closed. The upper end of the rolled backpack body 1 is sealed, and at this time, the Velcro hook surface 3 and the Velcro fleece surface 4 cooperate with each other, so that the connecting belt 2 can seal the upper end of the rolled backpack body 1, and a first connecting ring 5 is provided in the middle of the two Velcro fleece surfaces 4, and two first buckles 6 are provided on the first connecting ring 5, and the first buckle 6 is fixedly connected to the shoulder strap 7, and the shoulder strap 7 is fixedly connected to the second buckle 8 at one end away from the first buckle 6, and second connecting rings 9 are provided on both sides of the lower end of the backpack body 1, and the second buckle 8 and the second connecting ring 9 are clamped with each other, and the two ends of the shoulder strap 7 are fixedly connected to the first connecting ring 5 and the second connecting ring 9 on the backpack body 1 through the first buckle 6 and the second buckle 8 respectively, and the first buckle 6 and the first connecting ring 5, the second buckle 8 and the second connecting ring 9 can be disassembled and connected, so that the shoulder strap 7 can be quickly replaced when it is damaged.
[0019] The joints of the waterproof fabric layer 102 are fixedly connected by heat welding. The waterproof fabric layer 102 connected by heat welding can achieve seamless connection between the joints of the waterproof fabric layer 102, thereby preventing rainwater from entering the backpack body 1 through the gaps in the fabric.
[0020] The waterproof fabric layer 102 is an ePTFE laminated fabric layer. The ePTFE laminated fabric is made by laminating a polytetrafluoroethylene microporous membrane with ordinary fabric through a special process. The fabric integrates the excellent waterproof and moisture permeability of the ePTFE membrane, so that sweat vapor can quickly pass through the fabric, and the human body will not feel stuffy, which effectively improves the comfort of the backpack body 1.
[0021] The wear-resistant coating 103 is a PU coating, which is a polyurethane coating. After coating, the fabric feels full and elastic, and the surface has a filmy feel. The PU coating has the characteristics of wear resistance and wind resistance.
[0022] A shoulder strap 10 is provided at the upper end of the shoulder strap 7 . The provision of the shoulder strap 10 increases the contact area between the shoulder strap 7 and the user's shoulder, thereby effectively increasing the comfort of use of the backpack body 1 .
[0023] The backpack body 1 is provided with a handle 11 between the two Velcro surfaces 4. The arrangement of the handle 11 makes the backpack body 1 more convenient to hold.
[0024] Backpack side pockets 12 are disposed on both sides of the backpack body 1 .
[0025] Specifically, in the present invention, the sponge support pad 101 constitutes the overall support structure of the backpack body 1, making it easier to place the backpack body 1 upright, the waterproof fabric layer 102 effectively ensures the waterproof performance of the backpack body 1, the wear-resistant coating 103 increases the wear resistance of the backpack body 1, and the waterproof fabric layer 102 connected by heat welding can achieve seamless connection between the joints of the waterproof fabric layer 102, thereby preventing rainwater from entering the backpack body 1 through the gaps in the fabric. Both the inner and outer sides of the backpack body 1 have waterproof functions, making the backpack body The backpack body 1 not only has a waterproof function, but also can be used to hold water under special circumstances. When the backpack body 1 is sealed, the upper end of the backpack body 1 is closed and then rolled up, and the rolled-up upper end of the backpack body 1 is sealed. At this time, the Velcro hook surface 3 and the Velcro fleece surface 4 cooperate with each other, so that the connecting belt 2 can seal the rolled-up upper end of the backpack body 1, and the first buckle 6 and the first connecting ring 5 as well as the second buckle 8 and the second connecting ring 9 can be disassembled and connected, so that the shoulder strap 7 can be quickly replaced when it is damaged.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An outdoor seamless waterproof backpack, comprising a backpack body (1), characterized in that: The backpack body (1) comprises a sponge support pad (101), a waterproof fabric layer (102) is provided on the outer side of the sponge support pad (101), and a wear-resistant coating (103) is provided on the side of the waterproof fabric layer (102) away from the sponge support pad (101). A connecting belt (2) is provided at both ends of the upper side of the backpack body (1), and a Velcro hook surface (3) is provided on the side of the connecting belt (2) away from the backpack body (1). Two Velcro fur surfaces (4) are provided at the upper end of the side of the backpack body (1) away from the connecting belt (2), and a first connecting ring (5) is provided in the middle of the two Velcro fur surfaces (4). Two first buckles (6) are provided on the first connecting ring (5), and the first buckle (6) is fixedly connected to a shoulder strap (7), and the shoulder strap (7) is fixedly connected to a second buckle (8) at one end away from the first buckle (6). Second connecting rings (9) are provided on both sides of the lower end of the backpack body (1), and the second buckle (8) and the second connecting ring (9) are mutually buckled.
2. The outdoor seamless waterproof backpack according to claim 1, characterized in that: The joints of the waterproof fabric layer (102) are fixedly connected by thermal welding.
3. The outdoor seamless waterproof backpack according to claim 1, characterized in that: The waterproof fabric layer (102) is an ePTFE composite fabric layer.
4. The outdoor seamless waterproof backpack according to claim 1, characterized in that: The wear-resistant coating (103) is a PU coating.
5. The outdoor seamless waterproof backpack according to claim 1, characterized in that: A shoulder strap (10) is provided at the upper end of the shoulder strap (7).
6. The outdoor seamless waterproof backpack according to claim 1, characterized in that: The backpack body (1) is provided with a handle (11) between the two Velcro surfaces (4).
7. The outdoor seamless waterproof backpack according to claim 1, characterized in that: Backpack side pockets (12) are provided on both sides of the backpack body (1).
