Flexible package schoolbag bag

Abstract

The utility model relates to the field of schoolbags, in particular to a flexible package schoolbag bag which comprises a main bag body, straps and a middle zipper, an opening is formed in the main bag body, the middle zipper is arranged at the opening of the main bag body, the two ends of the straps are fixed to the main bag body, the main bag body is made of composite cloth, and the composite cloth comprises polyester, polyethylene fiber and nylon fiber. The polyester, the ethylene fiber and the nylon fiber are compounded to form cloth, and a foaming pad is arranged in the main bag body and is made of an elastic material. The bag has the effect of improving the structural strength of the bag body.

Description

Technical Field

[0001] This application relates to the field of school bags, and more particularly to a soft-pack school bag. Background Technology

[0002] With technological advancements and the growing demand for diverse consumer aesthetics, backpacks made using flexible packaging are gaining popularity in the market. Flexible packaging boasts mature printing technology, low production costs, and easy customization of printable patterns and text, making it widely used in advertising and customization.

[0003] Existing soft-pack backpacks are usually made of synthetic fiber fabric and include a bag body, shoulder straps, and zippers. The bag body has an opening, and the zipper is located on the opening. Both ends of the shoulder straps are fixed to the bag body, allowing users to place items inside the bag for storage.

[0004] The aforementioned technical solutions have the following drawbacks: the bag's structural strength is poor, and it is easy to puncture or tear the bag when the edges of items are sharp, resulting in a limited range of applicability for the backpack and the ability to carry fewer items. Utility Model Content

[0005] To improve the structural strength of the bag, this application provides a soft-pack school bag.

[0006] The flexible packaging backpack provided in this application adopts the following technical solution:

[0007] A soft-pack backpack includes a main body, shoulder straps, and a central zipper. The main body has an opening, and the central zipper is located at the opening. The two ends of the shoulder straps are fixed to the main body. The main body is made of a composite fabric, which includes polyester, polyethylene, and nylon fibers. The polyester, polyethylene, and nylon fibers are combined to form the fabric. A foam pad is provided inside the main body, and the foam pad is made of an elastic material.

[0008] By adopting the above technical solutions, carrying straps are installed on the main bag body, with both ends sewn to the main bag body, making it convenient for users to carry. A central zipper is installed on the main bag body, which can close the opening on the main bag body, thereby reducing the chance of items falling out of the main bag body. By using multi-layer chemical fiber composite to form the composite fabric of the main bag body, the wear resistance and strength of the composite fabric can be improved. When sharp objects are put into the main bag body, the chance of the main bag body breaking can be reduced, and the structural strength of the main bag body can be improved.

[0009] Optionally, the shoulder strap uses EVA foam material as the inner padding and is wrapped with PU-coated fabric on the outside.

[0010] By adopting the above technical solution, the inner lining of the shoulder strap is made of foam material, making the shoulder strap softer. When the user puts heavy items into the backpack and carries the backpack, the discomfort caused by the shoulder strap touching the user's skin can be reduced. By setting PU coated fabric on the outer surface of the shoulder strap, the polyurethane coating improves the wear resistance of the shoulder strap surface.

[0011] Optionally, the main bag body is provided with a handle, which is a strap structure, with both ends of the handle fixed to the main bag body.

[0012] By adopting the above technical solution, a handle is provided on the main bag body, which is located at the top of the main bag body, making it convenient for users to grip the main bag body.

[0013] Optionally, a structural mesh is provided on the inner surface of the main bag body. The structural mesh is made of nylon material and is laid flat and sewn onto the main bag body.

[0014] By adopting the above technical solution, a structural mesh is set inside the main bag, which enhances the structural strength of the main bag. When the user carries the backpack, the items inside the main bag come into contact with the structural mesh, reducing the chance of the main bag fabric tearing or puncturing.

[0015] Optionally, the handle is provided with a force transmission belt, which is sewn onto the inner surface of the main bag. One end of the force transmission belt is sewn onto the handle, and the other end is sewn onto the structural mesh.

[0016] By adopting the above technical solution, and by setting a force transmission belt on the handle to connect the handle to the structural mesh, when the weight of the items inside the main bag is large, the stress is evenly distributed on the force transmission belt and the structural mesh when the user holds the handle, thereby reducing the probability of breakage at the connection between the lifting mechanism and the main bag.

[0017] Optionally, the carrying strap is provided with a connecting strap, which is connected to the carrying strap, and both ends of the connecting strap are sewn to the structural mesh.

[0018] By adopting the above technical solution, and by setting connecting straps on the shoulder straps to connect them to the structural mesh, the probability of the shoulder straps breaking at the connection point with the main bag body can be reduced when the user carries the backpack.

[0019] Optionally, the main bag body is provided with a cover, the main bag body includes a pocket and a cover, the pocket and the cover are integrally formed, an opening is provided between the pocket and the cover, one end of the middle zipper is connected to the pocket and the other end is connected to the cover, one end of the cover is connected to the cover and the cover is placed on the middle zipper.

[0020] By adopting the above technical solution, a cover cloth is installed on the main bag body, covering the middle zipper. The cover cloth can be made of a chemical fiber material with good waterproof properties, thereby improving the waterproofness of the main bag body and reducing the chance of liquid entering the main bag body through the middle zipper.

[0021] Optionally, a self-sealing strip is provided on the outer surface of the bag, which is used to connect the cover and the bag.

[0022] By adopting the above technical solution, and by setting a self-sealing strip on the pocket to connect the cover and the pocket, the airtightness of the space where the central zipper is located is improved, and the moisture resistance of the main bag is enhanced.

[0023] In summary, the beneficial technical effects of this application are as follows:

[0024] 1. By setting shoulder straps on the main bag body and sewing the two ends of the shoulder straps to the main bag body, it is convenient for users to carry the bag. By setting a central zipper on the main bag body, the opening on the main bag body can be closed, thereby reducing the chance of items falling out of the main bag body. By using multi-layer chemical fiber composite to form the composite fabric of the main bag body, the wear resistance and strength of the composite fabric can be improved. When sharp objects are put into the main bag body, the chance of the main bag body breaking can be reduced, thus improving the structural strength of the main bag body.

[0025] 2. By setting a cover on the main bag body, so that the cover covers the middle zipper, the cover can be made of a chemical fiber material with good waterproof properties, thereby improving the waterproofness of the main bag body and reducing the chance of liquid entering the main bag body through the middle zipper;

[0026] 3. By setting a self-sealing strip on the pocket, the self-sealing strip connects the cover and the pocket, thereby improving the airtightness of the space where the central zipper is located and enhancing the moisture resistance of the main pocket. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 1 .

[0028] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 2 .

[0029] Figure 3 This is a cross-sectional view of the main bag body according to an embodiment of this application.

[0030] Figure 4 This is a schematic diagram of the structure of the network according to an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the cover fabric according to an embodiment of this application.

[0032] Reference numerals: 1. Main bag body; 11. Pocket; 12. Cover; 131. Cover fabric; 132. Self-sealing strip; 2. Shoulder strap; 21. Connecting strap; 3. Handle; 31. Force transmission belt; 4. Central zipper; 5. Structural mesh; 6. Foam pad. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a flexible packaging backpack, referring to... Figure 1 and Figure 2 The device includes a main bag body 1, shoulder straps 2, handles 3, and a central zipper 4. The main bag body 1 includes a pocket 11 and a cover 12, which are integrally connected to form an opening. The central zipper 4 is installed on the opening of the main bag body 1, allowing the user to place items inside the pocket 11. The cover 12 is connected to the pocket 11 via the central zipper 4. Two shoulder straps 2 are provided and fixed to the outer surface of the main bag body 1. The handles 3 are fixed to the top of the main bag body 1, allowing the user to carry the main bag body 1 using the shoulder straps 2 and the handles 3.

[0035] Reference Figure 1 The main bag body 1 and handle 3 are made of composite materials, including polyester, polyethylene, and nylon fibers. The polyester is made from polyester fiber material, the polyethylene fiber material is made from polyethylene fiber material, and the nylon fiber material is made from polyamide fiber. The polyester, polyethylene, and nylon fibers are bonded together to form a composite fabric, thereby improving the abrasion resistance and strength of the main bag body 1 and handle 3. The shoulder strap 2 uses EVA foam material as inner padding and is covered with PU-coated fabric on the outside.

[0036] Reference Figure 3 and Figure 4 The main bag body 1 is provided with a structural mesh 5. The structural mesh 5 is made of nylon fiber with good structural strength. The structural mesh 5 is laid flat inside the main bag body 1, and the edges of the structural mesh 5 are sewn onto the main bag body 1, thereby improving the structural strength of the main bag body 1.

[0037] Reference Figure 3 The main bag 1 is equipped with a foam pad 6, which is made of an elastic material and covers the structural mesh 5. When items are placed inside the main bag 1, the items rest against the foam pad 6, reducing discomfort on the user's back when carrying the bag.

[0038] Reference Figure 2The carrying strap 2 is equipped with a connecting strap 21, which is made of nylon fiber with good structural strength. The connecting strap 21 is sewn to the carrying strap 2, and both ends of the connecting strap 21 are sewn to the structural mesh 5. The carrying strap 2 is connected to the structural mesh 5 through the connecting strap 21, thereby improving the connection strength between the carrying strap 2 and the main bag body 1 and reducing the chance of the end of the carrying strap 2 detaching from the main bag body 1.

[0039] Reference Figure 4 A force-transmitting band 31 is provided on the inner surface of the cover 12. The force-transmitting band 31 is made of nylon fiber with good structural strength. The force-transmitting band 31 is sewn and fixed to the inner wall of the cover 12. One end of the force-transmitting band 31 is connected to the structural mesh 5, and the other end is sewn and connected to the end of the handle 3. When the user holds the handle 3, the force at the connection between the handle 3 and the cover 12 is relatively large, and the handle 3 is easy to fall off the main bag body 1. By setting the force-transmitting band 31 inside the cover 12, the handle 3 is connected to the structural mesh 5, thereby making the stress on the handle 3 evenly distributed and improving the connection strength between the handle 3 and the main bag body 1.

[0040] Reference Figure 5 A cover 131 is provided on the cover body 12. The cover 131 is made of a waterproof synthetic fiber material. The cover 131 is used to cover the central zipper 4, thereby improving the waterproof and moisture-proof properties of the main bag body 1. The cover 131 has a rectangular fabric structure. One side of the cover 131 is sewn and fixed to the cover body 12, and the other end is provided with a self-sealing strip 132. The self-sealing strips 132 are set in pairs. One self-sealing strip 132 is fixed to the cover 131, and the other self-sealing strip 132 is fixed to the main bag body 1. The two self-sealing strips 132 can be detachably connected. When the two self-sealing strips 132 are connected, the waterproofness of the central zipper 4 is improved.

[0041] The implementation principle of this application embodiment is as follows: the main bag body 1 is made of various chemical fibers with good water resistance, abrasion resistance and strength, so that the main bag body 1 has good strength. By setting the shoulder strap 2 and handle 3 on the main bag body 1, it is convenient for users to carry the main bag body 1. By setting the structural mesh 5 inside the main bag body 1, the stress on the main bag body 1 is evenly distributed when carrying the main bag body 1, which can reduce the probability of the main bag body 1 being damaged.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A flexible backpack, characterized in that: It includes a main bag body (1), shoulder straps (2) and a central zipper (4). The main bag body (1) has an opening, and the central zipper (4) is located at the opening of the main bag body (1). The two ends of the shoulder straps (2) are fixed to the main bag body (1). The main bag body (1) is made of composite fabric, which includes polyester, polyethylene and nylon fibers. The polyester, polyethylene and nylon fibers are combined to form the fabric. A foam pad (6) is provided inside the main bag body (1). The foam pad (6) is made of an elastic material.

2. The soft-pack backpack according to claim 1, characterized in that: The shoulder strap (2) is made of EVA foam material as inner padding and wrapped with PU coated fabric on the outside.

3. The soft-pack backpack according to claim 2, characterized in that: The main bag body (1) is provided with a handle (3), which is a strap structure, and the two ends of the handle (3) are respectively fixed on the main bag body (1).

4. The soft-pack backpack according to claim 3, characterized in that: The inner surface of the main bag body (1) is provided with a structural mesh (5), which is made of nylon material and is laid flat and sewn onto the main bag body (1).

5. The soft-pack backpack according to claim 4, characterized in that: The handle (3) is provided with a force transmission belt (31), which is sewn onto the inner surface of the main bag body (1). One end of the force transmission belt (31) is sewn onto the handle (3), and the other end is sewn onto the structural mesh (5).

6. The soft-pack backpack according to claim 4, characterized in that: The carrying strap (2) is provided with a connecting strap (21), which is connected to the carrying strap (2), and the two ends of the connecting strap (21) are sewn to the structural mesh (5).

7. The soft-pack backpack according to claim 1, characterized in that: The main bag body (1) is provided with a cover (131). The main bag body (1) includes a pocket (11) and a cover (12). The pocket (11) and the cover (12) are integrally formed. An opening is provided between the pocket (11) and the cover (12). One end of the middle zipper (4) is connected to the pocket (11), and the other end is connected to the cover (12). One end of the cover (131) is connected to the cover (12), and the cover (131) covers the middle zipper (4).

8. The soft-pack backpack according to claim 7, characterized in that: The outer surface of the bag (11) is provided with a self-sealing strip (132), which is used to connect the cover (131) and the bag (11).

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