Hand-held PP foaming sheet disassembly and assembly file package
The document bag, formed by combining two PP foam sheets, adopts a snap-on and female buckle design, which solves the problem of document bags that cannot be disassembled in the existing technology, and achieves the effects of easy disassembly and assembly, lightweight and cost reduction.
Patent Information
- Application Number
- CN202520586410.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The existing file package has a one-piece structure that cannot be disassembled, resulting in a poor feel and high cost.
The structure is made of two PP foam sheets and is assembled and disassembled through snap and buckle design. Combined with injection-molded handle and double pressure crease structure, it enhances ease of assembly and disassembly and safety.
It achieves easy assembly and disassembly of the file package and lightweight design, reducing costs, while providing a good feel and diverse appearance designs.
Smart Images

Figure CN223860323U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a file bag technical field, concretely relates to a hand-held PP foamed sheet dismounting file bag. BACKGROUND
[0002] The file bag is specially used for containing files or data. The file bag in the prior art is generally of an integral structure and cannot be dismounted, in addition, the file bag has poor surface hand feeling, is heavy in weight, and is relatively high in cost. SUMMARY
[0003] The utility model discloses a hand-held PP foamed sheet dismounting file bag which overcomes the defects of the prior art.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] A hand-held PP foamed sheet dismounting file bag, comprising a surface layer and a bag body surrounding edge arranged on the inner side of the surface layer, wherein the surface layer comprises a back ridge, a face cover and a back cover connected to the two sides of the back ridge through double-press line creases respectively, the back ridge, the face cover and the back cover are integrally formed through a piece of PP foamed sheet; the outer side of the back ridge is provided with a handle; the front end surface of the bag body surrounding edge is connected with a face plate formed in one piece, and the face plate and the bag body surrounding edge are integrally formed through a piece of PP foamed sheet; a plurality of insertion buckles are arranged at the bottom of the bag body surrounding edge at intervals, and the inner side outer edge of the back cover is provided with insertion holes corresponding to the insertion buckles respectively, the insertion buckles are tightly fitted and inserted into the corresponding insertion holes, and the surrounding edge and the back cover surround to form a storage space for containing files.
[0006] Further, the outer side middle part of the back cover is connected with a buckle edge, the free end of the buckle edge is connected with a female buckle, and the outer side surface of the face cover is provided with a male buckle matched with the female buckle.
[0007] Further, the two sides of the buckle edge and the outer side middle part of the back cover are connected through a circular arc transition.
[0008] Further, the turning points of the buckle edge are all provided with double-press line crease structures.
[0009] Further, the handle is formed by injection molding.
[0010] Further, the handle is fixed on the back ridge through screw locking attachment.
[0011] Further, the face plate is provided with a decorative observation hole.
[0012] The utility model adopts the above technical scheme and has the beneficial effects that:
[0013] 1. The entire body of the document package is made of two PP foam sheets combined together. The overall structure is simple, easy to assemble and disassemble, and lightweight. Moreover, the cost of PP foam sheets is relatively low, thereby reducing the overall cost of the document package.
[0014] 2. PP foam sheets are used as the surface layer and packaging edging, which are lightweight and have a good feel. At the same time, various textures of the surface layer and packaging edging can be provided according to different market demands. Attached Figure Description
[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0016] Figure 1 This is a schematic diagram of the overall file package of this utility model;
[0017] Figure 2 This is a schematic diagram of the surface unfolding;
[0018] Figure 3 This is a schematic diagram of the bag's perimeter.
[0019] Figure 4 A diagram illustrating the handle; Detailed Implementation
[0020] like Figures 1-4 As shown, this utility model discloses a portable PP foam sheet file bag, comprising a surface layer and a bag body edging 1 placed inside the surface layer. The surface layer includes a spine 2 and a front cover 3 and a back cover 4 connected to both sides of the spine 2 by double pressure seams. The spine 2, front cover 3, and back cover 4 are integrally formed from a single piece of PP foam sheet. The front end of the bag body edging 1 is connected to a panel 6 integrally formed therewith. The panel 6 and the bag body edging 1 are integrally formed from a single piece of PP foam sheet. The connection between the panel 6 and the bag body edging 1, as well as the bends of the bag body edging 1 itself, also employ double pressure seams.
[0021] The bag body rim 1 and the back cover 4 are connected by an interlocking mechanism. The specific connection structure is as follows: the bottom of the bag body rim 1 is provided with multiple buckles 7 at intervals, and the inner outer edge of the back cover 4 is provided with insertion holes 8 corresponding to each buckle 7. Each buckle 7 is tightly inserted into the corresponding insertion hole 8, and the rim and the back cover 4 enclose a storage space for storing documents.
[0022] A snap-on edge 9 is connected to the center of the outer side of the back cover 4. A female snap 10 is connected to the free end of the snap-on edge 9. A female snap 11 that mates with the female snap 10 is provided on the outer side of the front cover 3. The snap-on edge 9 can be used to fasten and close the document bag, improving the security of document storage. The bends of the snap-on edge 9 all adopt a double-stitched crease structure, which facilitates the flexible opening and closing of the snap-on edge 9. The two sides of the snap-on edge 9 are connected to the center of the outer side of the back cover 4 by an arc transition to avoid stress concentration at the connection.
[0023] A handle 5 is provided on the outer side of the spine 2. The handle 5 is injection molded and can be shaped into different shapes to meet different market demands. In addition, the injection-molded handle 5 is fixed to the spine 2 by screws, which facilitates the disassembly and replacement of the handle 5.
[0024] The panel 6 of the bag body edging 1 is provided with a decorative observation hole 12, through which information about the documents or other items stored inside the storage space can be observed.
[0025] In this utility model, the entire body of the document package is formed by combining two PP foam sheets. The overall structure is simple, easy to assemble and disassemble, and lightweight. Moreover, the cost of PP foam sheets is relatively low, thereby reducing the overall cost of the document package.
[0026] In addition, using PP foam sheet as the surface layer and body edging 1 of the document package has the advantages of being lightweight and having a good feel. At the same time, it can provide a variety of different textures for the surface layer and body edging 1 according to different market demands.
[0027] The specific embodiments of this utility model have been described above. However, those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this embodiment without departing from the principle and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A portable PP foam sheet file bag, comprising a surface layer and a bag body edging placed inside the surface layer, characterized in that: The outer layer includes a spine and a front cover and a back cover connected to both sides of the spine by double pressure creases. The spine, front cover, and back cover are integrally formed from a single piece of PP foam sheet. A handle is provided on the outer side of the spine. A panel is integrally formed with the front end of the bag body edging. The panel and the bag body edging are integrally formed from a single piece of PP foam sheet. Multiple buckles are spaced apart at the bottom of the bag body edging. The inner outer edge of the back cover has a corresponding insertion hole for each buckle. Each buckle is tightly inserted into the corresponding insertion hole. The edging and the back cover together form a storage space for storing documents.
2. The portable PP foam sheet disassembly and assembly file bag according to claim 1, characterized in that: The outer middle of the back cover is connected to a buckle edge, and the free end of the buckle edge is connected to a female buckle. The outer surface of the front cover is provided with a female buckle that cooperates with the female buckle.
3. A portable PP foam sheet disassembly and assembly document bag according to claim 2, characterized in that: The two sides of the buckle are connected to the outer center of the back cover by a rounded transition.
4. A portable PP foam sheet disassembly and assembly document bag according to claim 2, characterized in that: The turning points of the edging all adopt a double-stitched crease structure.
5. A portable PP foam sheet disassembly and assembly document bag according to claim 1, characterized in that: The handle is injection molded.
6. A portable PP foam sheet disassembly and assembly document bag according to claim 1, characterized in that: The handle is fixed to the spine by screws.
7. A portable PP foam sheet disassembly and assembly document bag according to claim 1, characterized in that: The panel is provided with a decorative observation hole.