File box provided with hand-held injection-molded back ridge and formed by combining PP foaming sheets

Abstract

The utility model relates to a file box with a portable injection molding back ridge and PP foaming sheet material combination molding, which comprises a box body, a surface cover and an injection molding back ridge, the box body and the surface cover are both formed by the PP foaming sheet material, the injection molding back ridge comprises a back plate and two connecting plates which are integrally formed through injection molding, the two connecting plates are respectively connected with two sides of the back plate, and the back plate is connected with the surface cover. Creases are arranged between the corresponding side edges of the connecting plate and the back plate, and the back of the back plate is connected with a handle; the box body is defined by a bottom plate and a surrounding plate; the side edges of the two connecting plates of the injection molding back ridge are connected with the face cover and the box body bottom plate through riveting structures respectively, and a metal hole clamp used for clamping files is arranged on the inner side of one connecting plate. The file box is of a split structure, and injection molding and PP foaming sheets are combined, so that the sensory grade of the file box can be improved, and the cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of document box technology, specifically to a document box with a handle, injection-molded back, and PP foam sheet as a combination. Background Technology

[0002] A file box is a box specifically designed to hold documents or materials. Currently, file boxes are generally formed using injection molding. However, these file boxes have the following drawbacks during use: the surface of the panel has a poor feel, they are heavy, and the cost is relatively high. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a file box with a handle, injection-molded back, and PP foam sheet as a combination.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A document box with a handle and injection-molded spine, combined with PP foam sheet, includes a box body, a cover, and an injection-molded spine. The box body and cover are both formed from PP foam sheet. The injection-molded spine includes a back plate integrally formed by injection molding and two connecting plates. The two connecting plates are respectively connected to the two sides of the back plate, and creases are provided between the corresponding sides of the connecting plates and the back plate. A handle is connected to the back of the back plate. The box body is formed by a bottom plate and a side plate. The sides of the two connecting plates of the injection-molded spine are respectively connected to the cover and the bottom plate of the box body by riveting structure. One of the connecting plates has a metal hole clip on its inner side for holding documents.

[0006] Furthermore, the riveting structure includes a plurality of riveting posts placed on the connecting plate and engagement holes located on the faceplate and the bottom plate of the box body and cooperating with each riveting post.

[0007] Furthermore, the bottom of the enclosure is provided with buckles at intervals, and the bottom plate is provided with corresponding holes for each buckle. Each buckle is tightly fitted into the corresponding hole, thereby connecting the enclosure and the bottom plate.

[0008] Furthermore, the back plate of the injection-molded spine is provided with decorative grooves.

[0009] Furthermore, a buckle is connected to the middle of the outer side of the bottom plate of the box body, and a female buckle is connected to the free end of the buckle. A female buckle is provided on the outer side of the cover to cooperate with the female buckle.

[0010] The present invention adopts the above technical solution and has the following beneficial effects:

[0011] 1. The file box adopts a split structure, combining injection molding and PP foam sheet, which can not only improve the appearance of the file box, but also reduce the cost of the entire file box due to the relatively low cost of PP foam sheet.

[0012] 2. The spine of the file box is injection molded, and different shaped grooves can be molded on the spine according to needs. The overall structure is sturdy and durable. PP foam sheet is used as the panel and box body, which is lightweight and has a good feel. At the same time, various textured panels and boxes can be provided according to different market demands.

[0013] 3. The box body is made of PP foam sheets, which can shorten the mold opening time, greatly reduce production costs, and make flexible adjustments according to market demand. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 This is a schematic diagram of the (disassembled) structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the injection-molded spine unfolding. Detailed Implementation

[0017] like Figure 1-2 As shown, this utility model discloses a document box with a handle and injection-molded spine combined with PP foam sheet, comprising a box body 1, a cover 2, and an injection-molded spine 3. The box body 1 and the cover 2 are both formed from PP foam sheet. The injection-molded spine 3 includes a back plate 31 integrally formed by injection molding and two connecting plates 32. The two connecting plates 32 are respectively connected to the two sides of the back plate 31, and creases 33 are provided between the corresponding sides of the connecting plates 32 and the back plate 31. A handle 34 is connected to the back of the back plate 31. The box body 1 is formed by a bottom plate 11 and a surrounding plate 12. The sides of the two connecting plates 32 of the injection-molded spine 3 are respectively connected to the cover 2 and the bottom plate 11 of the box body 1 by riveting structure. One of the connecting plates 32 has a metal hole clip 8 for holding documents on its inner side.

[0018] The riveting structure includes multiple riveting posts 321 placed on the connecting plate 32 and mating holes 21 located on the cover 2 and the bottom plate 11 of the box body 1 and cooperating with each riveting post.

[0019] The bottom of the enclosure 12 is provided with buckles 121 at intervals, and the bottom plate 11 is provided with corresponding holes for each buckle 121. The buckles 121 are dovetail-shaped, and each buckle 121 is tightly fitted into the corresponding hole, thereby reliably connecting the enclosure 12 and the bottom plate 11.

[0020] The injection-molded spine 3 has a decorative groove 311 on its back plate 31. The decorative groove 311 can improve the aesthetics of the injection-molded spine 3, as well as improve its strength and durability.

[0021] A buckle 4 is connected to the middle of the outer side of the bottom plate 11 of the box body 1. A female buckle 5 is connected to the free end of the buckle 4. A female buckle 6 is provided on the outer side of the cover 2 to cooperate with the female buckle 5. The buckle 4 can tightly close the cover 2 onto the box body 1, improving the security of document storage.

[0022] This utility model's file box adopts a split structure, combining the characteristics of injection molding and PP foam sheet. This not only improves the visual appeal of the file box, but also reduces the overall cost of the file box due to the relatively low cost of PP foam sheet. The back of the file box is injection molded, allowing for the creation of different shaped grooves as needed, resulting in a sturdy and durable structure. Using PP foam sheet for both the panel and the box body provides lightweight properties, and the appearance and texture of the panel and box body can be diversified, offering a good feel and meeting different market demands. The combination molding of the box body using PP foam sheet shortens mold opening time, significantly reducing production costs, and allows for flexible adjustments based on market needs.

[0023] 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 document box with a handle, injection-molded spine, and PP foam sheet combined, comprising a box body, a cover, and an injection-molded spine, characterized in that: Both the box body and the cover are made of PP foam sheet. The injection-molded spine includes a back plate and two connecting plates integrally formed by injection molding. The two connecting plates are respectively connected to the two sides of the back plate, and there are creases between the corresponding sides of the connecting plates and the back plate. A handle is connected to the back of the back plate. The box body is formed by a bottom plate and a surrounding plate. The sides of the two connecting plates of the injection-molded spine are respectively connected to the cover and the bottom plate of the box body by riveting structure. One of the connecting plates has a metal hole clip for holding documents on its inner side.

2. The document box with a handle, injection-molded spine, and PP foam sheet as described in claim 1, characterized in that: The riveting structure includes multiple riveting posts placed on the connecting plate and mating holes located on the faceplate and the bottom plate of the box body, which mate with each riveting post.

3. The document box with a handle, injection-molded spine, and PP foam sheet as described in claim 1, characterized in that: The bottom of the enclosure is provided with buckles at intervals, and the bottom plate is provided with corresponding holes for each buckle. Each buckle is tightly fitted into the corresponding hole, thereby connecting the enclosure and the bottom plate.

4. A document box with a handle, injection-molded spine, and PP foam sheet as described in claim 1, characterized in that: The injection-molded spine has a decorative groove on its back plate.

5. A document box with a handle, injection-molded spine, and PP foam sheet as described in claim 1, characterized in that: A buckle is connected to the middle of the outer side of the bottom plate of the box body, and a female buckle is connected to the free end of the buckle. A female buckle is provided on the outer side of the cover to cooperate with the female buckle.

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