TWI659906B - Rigid folding box - Google Patents

Abstract

The creation is a rigid folding box, which includes a bottom plate, two side plates and two bent plates. The side plates and the bent plates are alternately arranged on the four sides of the rectangular bottom plate and extend upward. The bottom plate is provided with a bottom plate bending groove. Group, each bending board has a central bending groove group, two sides of the bending groove group and a bending hole group, the bending hole group includes the first, second and third penetrating through the bending plate The connecting holes pass through the bending groove groups and connecting holes on the bending plate, especially the connecting holes connected at the junctions of the bending groove groups, which greatly reduces the force required to fold the bending plate, and the user can Easily fold the strong bending plate, so as to achieve the purpose of convenient folding and unfolding, making this creation a strong, convenient storage and reusable storage box.

Description

Rigid folding box

This creation relates to a cabinet, especially a reusable cabinet.

The carton is a storage box often used by the transportation industry and the general public when carrying items. After the user has assembled the carton through a bonding tool such as a nail gun or tape, the user can place the items to be carried in the carton.

However, the prior art carton is very inconvenient in terms of assembly and reusability; for example, when the carton is assembled, whether using a nail gun or tape, it is still very time consuming and troublesome, especially if The volume of the carton itself after assembly is relatively large, which is very inconvenient for a single user to assemble.

On the other hand, after the carton is used, if the user wants to temporarily store it for reuse in the future, it is necessary to decide whether to disassemble the carton into a plate shape before assembly. If the user does not disassemble, the carton itself is bulky. It will be very inconvenient to store; but even if the user decides to remove the carton, it will not only be troublesome to disassemble, but the original fixed connection position on the carton will be damaged due to the adhesiveness of the tape or the nail gun connection, which will reduce the structure of the carton. strength.

To be more precise, even though the user has designed a groove in the carton to facilitate folding, and the carton is to be stored by pressing, the hardness of the carton will also increase the difficulty of pressing. To improve its compressibility, the overall structural strength of the carton box will be weakened. Therefore, the storage box of the prior art, especially the carton box, has its shortcomings in terms of storage and reusability.

In view of the shortcomings and deficiencies of the prior art, this creation provides a rigid folding box, which can be folded and unfolded while maintaining the strength of the structure by opening holes in the bending plate, thereby improving the disassembly and assembly Convenience, which can reduce the difficulty of disassembly and assembly, and at the same time, it is convenient for users to reuse.

In order to achieve the above-mentioned creation purpose, the technical method adopted in this creation is a rigid folding box, which is made of a rigid plate body and includes a bottom plate, which is a rectangular plate body, and a bottom plate is formed on the bottom surface outside the bottom plate. Bending groove group, the bottom plate bending groove group includes at least one bottom plate bending groove, the at least one bottom plate bending groove is formed on the bottom surface of the bottom plate and extends to opposite ends of the bottom plate; the two side plates are respectively connected to The two opposite sides of the bottom plate, and each of the side plates extend upwardly relative to the bottom plate; two bent plates, which are respectively connected to the other side of the bottom plate different from the two side plates and extend upwardly relative to the bottom plate, The two side plates and the two bent plates jointly surround the bottom plate and cover an accommodation space. Each of the bent plates is formed with a central bending groove group, which includes at least one central bending groove. A central bending groove is concavely formed at the center of the outer side of the bending plate, and extends linearly to the top and bottom ends of the bending plate, and the bottom end of the at least one central bending groove and the bottom of the at least one central bending groove. The at least one bottom plate is bent Are connected to each other; the two side bending groove groups are respectively formed on opposite sides of the central bending groove group, and each of the side bending groove groups includes at least one side bending The at least one side bending groove is concavely formed on the outer side of the bending plate, and one end of the at least one side bending groove is connected to the central bending groove group, and the at least one side bending is The other end of the slot extends obliquely downward from the central bending groove group and extends away from the central bending groove group to the bottom end of the bending plate; a bending hole group, the bending hole group is formed through the bending On board and contains A first connection hole is formed through the junction of the central bending groove group and the two side bending groove groups; two second connection holes are respectively formed through the two side bending groove group and the two A junction of the bottom end of the bending plate; a third connection hole penetratingly formed at the junction of the central bending groove group and the bottom end of the bending plate; wherein the rigid folding box has a folded state and an unfolded State: In the folded state, the two side plates are closer to each other, and each of the bent plates is bent along the central bending groove group and the two side edge bending groove groups formed on the bending plate; In the unfolded state, the two side plates are away from each other, and the two bent plates are unfolded.

The advantage of this creation is that it is made by using a rigid board whose structural strength is greater than that of paper. Its hardness during use is better than that of a carton. When the user wants to fold it, the The bending hole group is matched with the bottom plate bending groove group, the central bending groove group and the side bending groove group, and the user can quickly and effortlessly squeeze the two side plates, so that the bottom plate and the two bending plates of the creation are made. Compression or expansion of the opposite side plate, especially the bending hole groups opened on the bending plate, because they are arranged at the intersections of the bending groove groups, and these intersections are the most difficult to fold the bending plates. Where to bend, in other words, the bending hole group of this creation makes it easier for the bending plate to be folded, so that the hard board of this creation can be easily bent; in other words, the box of this creation Can be quickly collapsed or opened by the user, thereby not only saving the time of assembling the cabinet, but also quickly collapsing the creation after use to reduce the overall volume of the creation and achieve convenience Effect of storage; In terms of the box system of this creation can be used repeatedly by folding and unfolding, the user does not need to assemble the box of this creation through joining tools such as tape or nail gun, so the box of this creation is compared with the cardboard box of the prior art. It is also better able to maintain its structural strength after repeated use.

Further, the aforementioned rigid folding box further includes two fixing components, the two fixing components are respectively connected to the two bending plates, and each of the fixing components includes a fixing plate, one end of which is corresponding to the corresponding bending portion. The top ends of the folding plates are connected; two coupling members are respectively disposed on the fixing plate and the corresponding bending plates, and when the fixing plate is bent downward relative to the bending plate and is adjacent to the bending plate, The two coupling members can be detachably combined with each other, so that the fixed plate and the bent plate are combined.

Further, in the aforementioned rigid folding box, at least one fixing plate bending groove is formed on the fixing plate of each of the fixing components, and when the fixing plate is expanded relative to the bending plate, the at least one fixing plate bending groove and The central bending groove of the bending plate is located on the same straight line, and when the two coupling members of the fixing assembly are combined with each other, the at least one fixing plate bending groove is recessed in the direction of the fixing plate and the central bending The grooves are recessed in opposite directions of the bent plate.

Further, the aforementioned rigid folding box further includes two first sealing plates, which are respectively formed on the tops of the two bent plates; two second sealing plates, which are respectively formed on the two second sealing plates. When the top ends of the two side plates are bent toward each other to a horizontal state with respect to the two side sealing plates, the accommodation space is selectively shielded by the two second box sealing plates.

Further, in the foregoing rigid folding box, the bending hole group of each bending plate further includes two bottom bending holes, and the two bottom bending holes are respectively formed through the outer sides of the bending plate. The bottom ends are respectively located between the third connection hole and the two second connection holes.

Further, in the aforementioned rigid folding box, the bending hole group of each bending plate further includes a central bending hole which is formed through the central bending groove group and is located at the first connection hole. And between the third connection hole.

Further, in the aforementioned rigid folding box, the width of the central bending hole is greater than the width of the central bending groove group.

Further, in the aforementioned rigid folding box, the bending hole group of each bending plate further includes two side bending holes, and the two side bending holes are respectively formed in the two side bending groove groups. And is located between the first connection hole and the corresponding second connection hole.

Further, in the aforementioned rigid folding box, the number of the at least one bottom plate bending groove of the bottom plate bending groove group is two, and the two bottom plate bending grooves are arranged side by side with each other.

Further, the aforementioned rigid folding box further includes an upper cover which is detachably covered above the two side plates and the two bent plates, and shields the accommodation space.

Further, in the aforementioned rigid folding box, the bottom plate, the two side plates and the two bent plates are made of polypropylene.

Further, in the aforementioned rigid folding box, the bottom plate, the two side plates, and the two bent plates are made of polyethylene terephthalate.

Further, in the aforementioned rigid folding box, in the bending hole group on each bending plate, the shape of the first connection hole is a triangle, and the triangle of the triangle corresponds to the central bending groove group and The two sides are bent into a groove group.

Further, in the aforementioned rigid folding box, in the bending hole group of each bending plate, the two second connection holes are respectively located at corners on opposite sides of the bottom end of the bending plate, and each of the second The shape of the connection hole is rectangular.

10‧‧‧ floor

100‧‧‧ accommodation space

11‧‧‧ underside

12‧‧‧ floor bending groove

20‧‧‧Side

30‧‧‧Folding plate

31‧‧‧Central bending groove group

311‧‧‧ central bending groove

32‧‧‧Side bending groove group

321‧‧‧side bending groove

33‧‧‧Bottom bending groove group

331‧‧‧Bottom bending groove

34‧‧‧ Bend hole group

341‧‧‧first connection hole

342‧‧‧Second connection hole

343‧‧‧Third connection hole

344‧‧‧Central Bend Hole

345‧‧‧Side Bend Hole

346‧‧‧Bent end bending hole

40‧‧‧Fixed components

41‧‧‧Fixed plate

42‧‧‧Combination

411‧‧‧Fixing plate bending groove

61‧‧‧Take the opening

62‧‧‧hand strap

100A‧‧‧accommodation space

20A‧‧‧Side panel

30A‧‧‧Folding plate

51A‧‧‧The first sealing plate

52A‧‧‧Second sealing board

521A‧‧‧Hook and loop

522A‧‧‧Fixed section

523A‧‧‧Perforated

100B‧‧‧accommodation space

20B‧‧‧Side panel

30B‧‧‧Folding plate

71B‧‧‧ Upper cover

FIG. 1 is a three-dimensional appearance view of the first embodiment of this creation.

Fig. 2 is a schematic plan view of the bending plate of this creation.

Figure 3 is a schematic diagram of the creative assembly process.

Figure 4 is a plan side view of the original bending plate when it is compressed.

FIG. 5 is a front view of FIG. 4.

FIG. 6 is a plan development view of the first embodiment of this creation.

FIG. 7 is a three-dimensional appearance view of the second embodiment of this creation.

FIG. 8 is a plan development view of the second embodiment of this creation.

FIG. 9 is a schematic perspective view of a third embodiment of the present invention.

In the following, with reference to the drawings and the preferred embodiment of this creation, the technical means adopted by this creation to achieve the intended purpose is further explained.

Please refer to FIG. 1. The first embodiment of the rigid folding box of the present invention includes a bottom plate 10, two side plates 20, and two bent plates 30. In this embodiment, the bottom plate 10, the two side plates 20, and the two bends The material of the folding plate 30 includes polypropylene (Polypropylene, PP) or polyethylene terephthalate (PET), but it is not limited to the above two materials.

Please refer to FIG. 1 and FIG. 6, the bottom plate 10 is a rectangular plate body, and a bottom plate bending groove group is formed on the outer bottom surface 11. The bottom plate bending groove group includes at least one bottom plate bending groove 12, and In the first embodiment, the number of the at least one bottom plate bending groove 12 is two, and each of the bottom plate bending grooves 12 extends linearly from the bottom surface 11 of the bottom plate 10, but the number and structure are not limited to the above. .

Please refer to FIG. 1, each of the bottom plate bending grooves 12 extends to opposite ends of the bottom surface 11 of the bottom plate 10, and the two bottom plate bending grooves 12 are arranged side by side with each other.

The two side plates 20 are respectively connected to opposite sides of the bottom plate 10, and each of the side plates 20 extends upwardly from the bottom plate 10.

The two bent plates 30 are respectively connected to the bottom plate 10 and are connected to the other two sides of the bottom plate 10 which are different from the two side plates 20, and each of the bent plates 30 is arranged to extend upward relative to the bottom plate 10. In other words, the The two side plates 20 and the two bent plates 30 surround the bottom plate 10 and cover an accommodation space 100. In the first embodiment, the side plate 20 and the bent plate 30 are connected to each other by a thermocompression connection method, but the connection method is not limited thereto.

Please refer to FIG. 1 and FIG. 2, each of the bending plates 30 is further provided with a central bending groove group 31, two side bending groove groups 32, a bottom bending groove group 33 and a bending hole group. 34.

Please refer to FIGS. 1, 2 and 6. The central bending groove group 31 includes at least one central bending groove 311. In this embodiment, the number of the at least one central bending groove 311 is two, and The two central bending grooves 311 are arranged side by side with each other; the two central bending grooves 311 are concavely formed at the center of the outer side surface of the bending plate 30 and extend linearly to the top and bottom ends of the bending plate 30, and each The bottom end of the central bending groove 311 is connected to the two bottom plate bending grooves 12 on the bottom plate 10, in other words, the opposite ends of the bottom plate 10 extending with the bottom plate bending groove 12 are connected to the two bending plates 30 respectively. The other two ends of the bottom plate bending groove 12 are not connected to the two side plates 20 respectively, that is, the two side plates 20 and the two bent plates 30 are arranged alternately on the four sides of the bottom plate 10.

Please refer to FIG. 1 and FIG. 2, the two side bending groove groups 32 are respectively formed on opposite sides of the central bending groove group 31, and each of the side bending groove groups 32 includes at least one side bending Folding grooves 321. In the first embodiment, the number of the at least one side bending grooves 321 is two, and the two side bending grooves 321 are arranged side by side with each other. More precisely, this first In the embodiment, one of the opposite ends of each of the side bending grooves 321 is connected to the central bending groove group 31 at one end, and the other end extends obliquely downward and away from the central bending groove group 31 to the bending plate 30. Bottom.

In other words, in the first embodiment, the two side bending groove groups 32 and the central bending groove group 31 are connected at the same point, and are respectively obliquely downward and away from each other and connected to the bottom end of the bending plate 30. The corners make the bottom edge of the bending plate 30 and the two side bending groove groups 32 form a triangle, but the extending direction and position of the side bending groove groups 32 are not limited to the above.

Please refer to FIG. 1 and FIG. 2. The bottom bending groove group 33 includes at least one bottom bending groove 331. In the first embodiment, the number of the at least one bottom bending groove 331 is two. And the two bottom ends The bending grooves 331 are juxtaposed with each other, and are respectively laterally recessed and formed on the bottom end of the bending plate 30 and the bottom surface 11 of the bottom plate 10 adjacent to the side of the bending plate 30.

Please refer to FIG. 1 and FIG. 2. The bending hole group 34 is formed through the bending plate 30 and includes a first connection hole 341, two second connection holes 342, a third connection hole 343, and a central bend. A folding hole 344, two side bending holes 345, and two bottom bending holes 346.

Please refer to FIG. 2 and FIG. 3. The first connection hole 341 is formed through the junction of the central bending groove group 31 and the two side bending groove groups 32. In the first embodiment, the first connection The shape of the hole 341 is a triangle, and the triangles of the triangle correspond to the central bending groove group 31 and the two side bending groove groups 32 respectively, but the shape of the first connection hole 341 is not limited to a triangle.

The two second connection holes 342 are respectively formed at the junctions of the bending groove groups 32 on the two sides and the bottom end of the bending plate 30. In the first embodiment, the two second connection holes 342 are respectively formed at the bends. The corners on the opposite sides of the bottom end of the plate 30 are rectangular, but the forming position and shape are not limited to the above.

The third connecting hole 343 is formed through the junction of the central bending groove group 31 and the bottom end of the bending plate 30. In the first embodiment, the junction is the bottom end of the central bending groove group 31 and the bottom end bend. Junction of the groove group 33.

Please refer to FIG. 2 and FIG. 3. The central bending hole 344 is formed through the central bending groove group 31, and is located between the first connecting hole 341 and the third connecting hole 343. The width of the central bending hole 344 is greater than the width of the central bending groove group 31. Here, the so-called width. When the central bending groove group 31 has a single central bending groove 311, it refers to the single central bending groove 311. Width, and when the central bending groove group 31 has a plurality of central bending grooves 311, it means the distance between the outer sides of the two outermost central bending grooves 311.

On the other hand, in the first embodiment, the ratio occupied by the central bending hole 344 in the distance between the first connection hole 341 and the third connection hole 343 is larger than the ratio occupied by the central bending groove group 31. But it is not limited to this.

Please refer to FIG. 2 and FIG. 3, the two side bending holes 345 are respectively formed on the two side bending groove groups 32, and are located between the first connection hole 341 and the corresponding second connection hole 342. In the first embodiment, the width of the side bending hole 345 is larger than the width of the side bending groove group 32. The width here is referred to as the width of the side bending groove group 32 when the side bending groove group 32 has a single side bending groove 321. , Refers to the width of the single side-bending groove 321, and when the side-bending groove group 32 has a plurality of side-bending grooves 321, it refers to the outer sides of the outermost side-bending grooves 321. the distance between.

On the other hand, in the first embodiment, the ratio of the side bending holes 345 in the distance between the first connection hole 341 and the second connection hole 342 is larger than that occupied by the side bending groove group 32. Ratio, but it is not limited to this.

Please refer to FIG. 2 and FIG. 3. The two bottom end bending holes 346 are formed through the bottom ends of the outer side of the bending plate 30 and are respectively located in the third connection hole 343 and the two second connection holes 342. More precisely, the two bottom bending holes 346 are respectively located on the bottom bending groove group 33. In the first embodiment, the width of the bottom bending holes 346 is greater than the width of the bottom bending grooves. The width of the group 33, the so-called width here, refers to the distance between the outer sides of the two outermost bottom end bending grooves 331.

On the other hand, in the first embodiment, the ratio of the bottom bending hole 346 in the distance between one of the second connecting holes 342 and the third connecting hole 343 is larger than that of the bottom bending groove group 33. Occupation ratio, but it is not limited to this.

Please refer to FIG. 1 and FIG. 3. In the first embodiment, two fixing components 40 are further included. The two fixing components 40 are respectively connected to the two bending plates 30, and each of the fixing components 40 includes a fixing component.板 41 和 两 联 件 42。 Plate 41 and two coupling members 42.

Please refer to FIGS. 1, 3 and 4. One end of the fixing plate 41 is connected to the top of the corresponding bending plate 30. At least one fixing plate bending groove 411 is formed on the fixing plate 41. In the first embodiment, the number of the at least one fixing plate bending groove 411 is two, and the number and position thereof correspond to the number and location of the central bending groove 311 of the bending plate 30, in other words, when the fixing plate When the 41 is extended relative to the bending plate 30 and extends upward, the fixing plate bending groove 411 is located on the same straight line as the central bending groove 311 on the bending plate 30.

Please refer to FIG. 3 and FIG. 6, the two coupling members 42 are respectively disposed on the fixing plate 41 and the corresponding bending plate 30. More precisely, in the first embodiment, each of the coupling members 42 includes The two fixing buckles correspond to their positions. When the fixing plate 41 is bent downward relative to the bending plate 30 and the fixing plate 41 is adjacent to the bending plate 30, the two coupling members 42 can be detachably combined with each other. The fixing plate 41 and the bending plate 30 are temporarily fixed to each other.

Please refer to FIG. 1 and FIG. 2. More precisely, when the fixing plate 41 is bent relative to the bending plate 30 and the fixing plate 41 is brought closer to the bending plate 30, the two coupling members 42 are combined with each other and fixed. The direction in which the plate bending groove 411 is recessed in the fixing plate 41 is opposite to the direction in which the central bending groove 311 is recessed in the bending plate 30. Therefore, after the fixing plate 41 is bent, the fixing plate bending groove 411 is recessed. The direction is opposite to the recessed direction of the central bending groove 311, which makes it difficult for this creation to bend along the central bending groove 311, thereby stabilizing the stability of the bending plate 30.

Please refer to FIG. 1, the creation further includes two holding openings 61 and two carrying straps 62, the two taking openings 61 are respectively formed on the two bending plates 30, and the two carrying straps 62 are respectively disposed on the two The openings 61 and the carrying straps 62 on the two side plates 20 are for the convenience of this creation, but in other embodiments, the openings 61 and the carrying straps 62 may not be taken.

Please refer to FIG. 7 and FIG. 8. The following is a second embodiment of the creation. This second embodiment is substantially the same as the first embodiment, but in this second embodiment, it does not have a fixed component, but It further includes two first sealing plates 51A and two second sealing plates 52A. The two first sealing plates 51A are respectively The two second sealing plates 52A are respectively formed at the tops of the two bent plates 30A, and the two second sealing plates 52A are respectively formed at the tops of the two side plates 20A. When the two second sealing plates 52A are bent toward each other with respect to the two side plates 20A, After a horizontal state, the two second sealing plates 52A can close the accommodating space 100A.

More precisely, in the second embodiment, the two second sealing plates 52A are respectively provided with a hook and loop tape 521A and two fixing portions 522A. When the two second sealing plates 52A are horizontally bent toward each other, The two hook and loop fasteners 521A can be fixed to each other, so that the two second sealing plates 52A can be temporarily connected to each other; on the other hand, the two fixing portions 522A on each of the second sealing plates 52A are respectively disposed on the two Opposite ends of the second sealing plate 52A, and each of the fixing portions 522A are provided with perforations 523A through which the rope body can pass. When the two second sealing plates 52A are superposed, two fixing portions 522A at the same end are located. They will overlap each other, and the two perforations 523A on the same end overlap. The user can pass a rope body (not shown) through these perforations 523A and wind it on the outer wall surface of this creation, thereby further stably This creation is sealed.

Please refer to FIG. 9. The following is a third embodiment of the creation. This third embodiment is substantially the same as the first embodiment, but in this third embodiment, it further includes an upper cover 71B, which is detachably The cover is disposed above the two side plates 20B and the two bent plates 30B, and can be used to cover the accommodation space 100B.

The following are the usage status of the creation.

Please refer to FIG. 3 to FIG. 6. This creation has a folded state and an unfolded state. In the folded state, the two side plates 20 are moved closer to each other, and each of the bent plates 30 is formed along the center of the folded plate 30. The bending groove group 31, the side bending groove group 32 and the bottom bending groove group 33 are bent, so that the bending plate 30 is compressed, and the bottom plate 10 is also folded in half along the shape of the bottom plate bending groove 12, This achieves the purpose of accommodating this creation, especially shown in Figure 4.

Please refer to FIG. 2, FIG. 3 and FIG. 4. To be more precise, after the creation is compressed, the paragraph of the central bending groove group 31 above the first connecting hole 341 will bend toward the accommodation space 100, and The paragraph below the first connection hole 341 is bent upward; at the same time, the same bending plate 30 The two side bending groove groups 32 are bent toward the accommodating space 100, so that the width of the bending plate 30 can be compressed.

Please refer to FIG. 1 and FIG. 3. In the unfolded state, the two side plates 20 move away from each other, so that the originally compressed bending plate 30 is re-expanded, and the fastening plate 40 is fastened to prevent the bending plate 30 from being unfolded. Will easily bend back to its folded shape.

More precisely, since the direction of the depression of the fixing plate bending groove 411 on the fixing plate 41 is opposite to that of the central bending groove 311, when the fixing plate 41 is engaged with the bending plate 30, the two sides are recessed. The deformation forces generated in the directions will cancel each other, thereby reducing the probability that the bending plate 30 is easily deformed.

The following are the advantages of this creation: Since this creation is made of a relatively strong PP or PET material, but the bending hole groups 34 opened on the bending plate 30 make this creation easy to bend, in other words, this creation The sturdy material does not affect the ease of folding, so this creation can achieve the advantages of good folding while maintaining the structural strength.

At the same time, since the creation is disassembled and assembled by folding and unfolding, and does not need to use any other joining tools such as tape or nail gun, the assembly of this creation is convenient, and it is not because of these joining tools. The use of this weakens the structural strength of this creation.

On the other hand, due to its high reusability, this creation can reduce the user's behavior of constantly replacing the cabinet, thereby complying with the concepts of environmental protection and sustainable use.

In summary, this creation is an environmentally friendly, reusable storage box that is easy to disassemble and fold.

The above description is only the preferred embodiment of the creation, and does not limit the creation in any form. Although the creation has been disclosed as above with the preferred embodiment, it is not intended to limit the creation. Generally, a knowledgeable person can use the technical content disclosed above to make a few changes or modifications as equivalent embodiments without departing from the scope of the technical solution of the creation, but it is not within the scope of the technical solution of the creation Based on the technical essence of this creation, Any simple modifications, equivalent changes, and modifications made by the embodiments still fall within the scope of this creative technical solution.

Claims (14)

A rigid folding box is made of a rigid plate body and includes a bottom plate, which is a rectangular plate body. A bottom plate bending groove group is formed on the bottom surface outside the bottom plate. The bottom plate bending groove group includes at least one A bottom plate bending groove, the at least one bottom plate bending groove is formed on the bottom surface of the bottom plate and extends to opposite ends of the bottom plate; the two side plates are respectively connected to opposite sides of the bottom plate, and each of the side plates is opposite to the bottom plate Extending upwardly; two bent plates respectively connected to the other sides of the bottom plate which are different from the two side plates and extending upward relative to the bottom plate, and the two side plates and the two bent plates jointly surround the bottom plate and wrap A accommodating space is covered, and a central bending groove group is formed on each of the bending plates, which includes at least one central bending groove, and each of the at least one central bending groove is concavely formed on the outer side of the bending plate. And the bottom end of the at least one central bending groove is connected to the at least one bottom plate bending groove on the bottom plate; the two side bending grooves Group, the two sides of the bending groove group It is formed on opposite sides of the central bending groove group, and each of the side bending groove groups includes at least one side bending groove, and the at least one side bending groove is concavely formed on the outer side of the bending plate. Side, and one end of the at least one side bending groove is connected to the central bending groove group, and the other end of the at least one side bending groove is slanted downward from the central bending groove group and away from the central bending The groove group extends to the bottom end of the bending plate; a bending hole group is formed through the bending plate and includes a first connecting hole formed through the central bending groove; The boundary between the group and the two side bending groove groups; two second connection holes that penetrate through the boundary between the two side bending groove groups and the bottom end of the bending plate; a third connection hole, It is formed through the junction of the central bending groove group and the bottom end of the bending plate; wherein, the rigid folding box has a folded state and an unfolded state: in the folded state, the two side plates are close to each other , And each of the bending plates is formed along the central bending groove group and the two side bending groove groups formed on the bending plate Bend; at the expanded state toward the side plates away from each other, and the two bent plates expand settings. The rigid folding box according to claim 1, further comprising two fixing components, the two fixing components are respectively connected to the two bending plates, and each of the fixing components includes a fixing plate, one end of which is corresponding to the corresponding one The top ends of the bending plates are connected; two coupling members are respectively disposed on the fixing plate and the corresponding bending plates, and when the fixing plate is bent downward relative to the bending plate and adjacent to the bending plate The two coupling members can be detachably combined with each other, so that the fixed plate and the bent plate are combined. The rigid folding box according to claim 2, wherein at least one fixing plate bending groove is formed on the fixing plate of each of the fixing components, and the at least one fixing plate bending groove is formed when the fixing plate is expanded relative to the bending plate. It is located on the same straight line as the central bending groove of the bending plate, and when the two coupling members of the fixing component are combined with each other, the at least one fixing plate bending groove is recessed in the direction of the fixing plate and the central bending The folded grooves are recessed in opposite directions of the bent plate. The rigid folding box according to claim 1, further comprising two first sealing plates, which are respectively formed on the tops of the two bent plates; two second sealing plates, which are respectively formed. At the top of the two side plates, when the two second box sealing plates are bent toward each other to a horizontal state relative to the two side plates, the accommodation space is selectively shielded by the two second box sealing plates. The rigid folding box according to any one of claims 1 to 4, wherein the bending hole group of each bending plate further includes two bottom end bending holes, and the two bottom end bending holes are respectively formed through The bottom ends of the outer sides of the bending plate are respectively located between the third connection hole and the two second connection holes. The rigid folding box according to any one of claims 1 to 4, wherein the bending hole group of each bending plate further includes a central bending hole formed through the central bending groove group, and Is located between the first connection hole and the third connection hole. The rigid folding box according to claim 6, wherein a width of the central bending hole is greater than a width of the central bending groove group. The rigid folding box according to any one of claims 1 to 4, wherein the bending hole group of each bending plate further includes two side bending holes, and the two side bending holes are respectively formed in the bending holes. The two sides are bent on the groove group, and are located between the first connection hole and the corresponding second connection hole. The rigid folding box according to any one of claims 1 to 4, wherein the number of the at least one bottom plate bending groove of the bottom plate bending groove group is two, and the two bottom plate bending grooves are arranged side by side with each other. The rigid folding box according to any one of claims 1 to 4, further comprising an upper cover, which is detachably covered above the two side plates and the two bent plates, and shields the accommodation space. The rigid folding box according to any one of claims 1 to 4, wherein the bottom plate, the two side plates and the two bent plates are made of polypropylene. The rigid folding box according to any one of claims 1 to 4, wherein the material of the bottom plate, the two side plates and the two bent plates comprises polyethylene terephthalate. The rigid folding box according to any one of claims 1 to 4, wherein in the bending hole group on each of the bending plates, the shape of the first connection hole is a triangle, and the triangles of the triangle correspond to The central bending groove group and the two side bending groove groups. The rigid folding box according to any one of claims 1 to 4, wherein in the bending hole group of each bending plate, the two second connection holes are respectively located on opposite sides of the bottom end of the bending plate. And the shape of each of the second connection holes is rectangular.