TWI748759B - Folding box - Google Patents

Abstract

The present invention is a folding box body, which comprises a plate body, a first folding part, a second folding part, a third folding part and a fourth folding part. Thereby, the plate body, the first hem section, the second hem section, the third hem section and the fourth hem section can be made flat before folding, so as to avoid occupying storage space; when folding, The folding patterns of the third and fourth folding parts are used to drive the first folding part and the second folding part, thereby making the present invention easy to operate and fast folding.

Description

Folding box

The present invention relates to an innovation of a folding box body, and particularly refers to a box body structure that can avoid occupying storage space, is easy to operate, and has a fast folding type.

During the production of common traditional paper containers, they are usually stacked and placed directly after being folded and pasted for delivery.

However, after this type of conventional paper container is produced by the aforementioned folding and then pasting method, it is found that not only the process is slow and cumbersome, but the formed paper container has a certain three-dimensional volume, which will inevitably cause occupation before shipment.了Storage space.

The main purpose of the present invention is to solve the above-mentioned shortcomings of the prior art and to improve it. The plate body, the first hemming part, the second hemming part, the third hemming part and the fourth hemming part can be made before folding. It is flat to avoid occupying storage space; when folding, the folding of the third and fourth folding parts is used to drive the first and second folding parts, thereby making the present invention easy to operate And it can be folded quickly.

To achieve the above objective, the present invention is a foldable box body, which includes a plate body, a first hem section, a second hem section, a third hem section, and a fourth hem section. The first edge-folding portion is provided on the upper side edge of the board body, and the first edge-folding portion is folded on the upper side edge of the board body. The first edge-folding portion includes a first outer plate, a first A horizontal plate, a first inner plate and a first fixing plate, the first outer plate is connected to the upper side edge of the plate body, the first horizontal plate is connected to the first outer plate, and the first inner plate is connected to the first A horizontal plate, the first fixing plate is connected to the first inner plate, and both sides of the first inner plate are respectively provided with a first embedding portion and a second embedding portion; the second flange portion is provided on the The lower side edge of the board body, and the second edge-folding portion is folded on the lower side edge of the board body, the second edge-folding portion includes a second outer panel, a second horizontal panel, and a second inner panel And a second fixing plate, the second outer plate is connected to the lower side edge of the plate body, the second horizontal plate is connected to the second outer plate, the second inner plate is connected to the second horizontal plate, the second fixing plate The second inner panel is connected, and both sides of the second inner panel are respectively provided with a third embedding portion and a fourth embedding portion; the third flange portion is provided on the right side edge of the board, and the second A three-folded part is folded on the right side edge of the board. The third folded part includes a third outer plate, a third horizontal plate, a third inner plate, a third fixing plate, and a first connection. Plate and a second connecting plate, the third outer plate is connected to the side edge of the plate body, the third horizontal plate is connected to the third outer plate, the third inner plate is connected to the third horizontal plate, and the third fixing plate The third inner plate is connected, and the third fixing plate is combined with one surface of the plate body, so that the third outer plate and the third inner plate are arranged correspondingly, and the first connecting plate is arranged on the third outer plate One side is connected to the first outer plate, and the second connecting plate is arranged on the other side of the third outer plate and connected to the second outer plate, so that the third flange part uses the first connection when folding The board and the second connecting board respectively drive The first outer plate, the second outer plate, and the third inner plate are respectively provided with a first limiting groove and a second limiting groove on both sides, the first embedding portion and the third embedding portion Do not be embedded in the first limiting groove and the second limiting groove; the fourth flange portion is provided on the left side edge of the board body, and the fourth flange portion is folded on the left side edge of the board body , The fourth flange portion includes a fourth outer plate, a fourth horizontal plate, a fourth inner plate, a fourth fixing plate, a third connecting plate and a fourth connecting plate, and the fourth outer plate is connected to On the side edge of the board, the fourth horizontal plate is connected to the fourth outer plate, the fourth inner plate is connected to the fourth horizontal plate, the fourth fixing plate is connected to the fourth inner plate, and the fourth fixing plate is combined On one surface of the board body, the fourth outer board is arranged corresponding to the fourth inner board, the third connecting board is arranged on one side of the fourth outer board and connected to the first outer board, and the fourth connection The board is arranged on the other side of the fourth outer board and connected to the second outer board, so that the fourth flange portion uses the third connecting board and the fourth connecting board to drive the first outer board respectively when folding And the second outer plate and the fourth inner plate respectively have a third limiting groove and a fourth limiting groove on both sides, the second embedding portion and the fourth embedding portion are respectively embedded in the The third limiting slot and the fourth limiting slot.

In an embodiment of the above-mentioned foldable box, the plate body, the first hem portion, the second hem portion, the third hem portion, and the fourth hem portion are integrally formed of paper materials. production.

In an embodiment of the above-mentioned folding box, a first fold line is formed between the first outer plate and the plate body, a second fold line is formed between the first outer plate and the first horizontal plate, and the first fold line is formed between the first outer plate and the first horizontal plate. A third fold line is formed between a horizontal plate and the first inner plate, and a fourth fold line is formed between the first inner plate and the first fixing plate to serve as a folding type of the first edge folding portion.

In an embodiment of the above-mentioned foldable box body, a fifth fold line is formed between the second outer plate and the plate body, a sixth fold line is formed between the second outer plate and the second horizontal plate, and the first A seventh fold line is formed between the two horizontal plates and the second inner plate, and an eighth fold line is formed between the second inner plate and the second fixing plate, which serves as the folding type of the second edge folding portion.

In an embodiment of the above-mentioned foldable box, both sides of the third horizontal plate are respectively provided with a first supporting portion and a second supporting portion, and the first horizontal plate and the second horizontal plate respectively press after being folded. Leans against the first supporting portion and the second supporting portion.

In an embodiment of the above-mentioned foldable box body, both sides of the third inner plate are respectively provided with a first resisting portion and a second resisting portion, and the first outer plate and the second outer plate are folded Respectively abut against the first resisting portion and the second resisting portion.

In an embodiment of the above-mentioned folding box body, the first connecting plate and the second connecting plate respectively have a first oblique fold line and a second oblique fold line, so that the third fold portion is folded after being folded. The first connecting plate is folded using the first oblique fold line and abuts against the first inner plate, and the second connecting plate is folded using the second oblique fold line and abuts against the second inner plate.

In an embodiment of the above-mentioned foldable box body, the fourth horizontal plate has a third support portion and a fourth support portion on both sides of the fourth horizontal plate, and the first horizontal plate and the second horizontal plate respectively abut against each other after being folded. Leans against the third supporting portion and the fourth supporting portion.

In an embodiment of the above-mentioned foldable box, the two sides of the fourth inner plate are respectively There is a third resisting portion and a fourth resisting portion, the first outer plate and the second outer plate are folded and respectively abut against the third resisting portion and the fourth resisting portion.

In an embodiment of the above-mentioned folding box body, the third connecting plate and the fourth connecting plate respectively have a third oblique fold line and a fourth oblique fold line, so that the fourth flange part is folded after the folding The third connecting plate is folded using the third oblique fold line and abuts against the first inner plate, and the fourth connecting plate is folded using the fourth oblique fold line and abuts against the second inner plate.

1: Board body

2: The first hemming part

21: The first outer panel

22: The first horizontal board

23: The first inner panel

231: The first embedding part

232: The second embedding part

24: The first fixed plate

3: The second hemming part

31: second outer panel

32: The second horizontal board

33: second inner panel

331: third embedding part

332: The fourth embedding part

34: second fixing plate

4: The third hemming part

41: third outer panel

42: third horizontal board

421: First Support

422: second support

43: third inner panel

431: first limit slot

432: second limit slot

433: The First Block

434: The second block

44: Third fixed plate

45: The first connection board

451: first diagonal line

46: second connecting plate

461: second diagonal line

5: The fourth folding part

51: Fourth Outer Board

52: The fourth horizontal board

521: Third Support

522: Fourth Support

53: Fourth inner panel

531: Third Limit Slot

532: Fourth Limit Slot

533: The Third Block

534: The Fourth Block

54: The fourth fixing plate

55: The third connecting plate

551: Third diagonal line

56: The fourth connecting plate

561: Fourth Diagonal Line

101: The first polyline

102: Second broken line

103: third broken line

104: Fourth broken line

105: Fifth broken line

106: Sixth broken line

107: Seventh broken line

108: Eighth fold line

The first figure is an expanded schematic view of the present invention.

The second figure is the first schematic diagram of the folded state of the present invention.

The third figure is the second schematic diagram of the folded state of the present invention.

The fourth figure is the third schematic diagram of the folded state of the present invention.

Please refer to "Figures 1 to 4", which are the expanded schematic diagram of the present invention, the schematic diagram of the folded state of the present invention, the schematic diagram of the folded state of the present invention, and the schematic diagram of the folded state of the present invention. . As shown in the figure: a foldable box body of the present invention, the foldable box body at least includes a plate body 1, a first flanged portion 2, a second flanged portion 3, a third flanged portion 4, and a The fourth folding part 5.

The first edge-folding portion 2 is provided on the upper side edge of the board body 1, and the first edge-folding portion 2 is folded on the upper side edge of the board body 1, and the first edge-folding portion 2 includes a first The outer plate 21, a first horizontal plate 22, a first inner plate 23 and a first fixing plate 24, the first outer plate 21 is connected to the upper side edge of the plate body 1, and the first horizontal plate 22 is connected to the second An outer plate 21, the first inner plate 23 is connected to the first horizontal plate 22, the first fixing plate 24 is connected to the first inner plate 23, and both sides of the first inner plate 23 are respectively provided with a first embedding joint The portion 231 is connected to a second embedding portion 232.

The second hem portion 3 is provided on the lower side edge of the board body 1, and the second hem portion 3 is folded on the lower side edge of the board body 1, and the second hem portion 3 includes a second The outer plate 31, a second horizontal plate 32, a second inner plate 33, and a second fixing plate 34, the second outer plate 31 is connected to the lower side edge of the plate body 1, and the second horizontal plate 32 is connected to the first Two outer plates 31, the second inner plate 33 is connected to the second horizontal plate 32, the second fixing plate 34 is connected to the second inner plate 33, and both sides of the second inner plate 33 are respectively provided with a third embedding joint The portion 331 and a fourth embedding portion 332.

The third edge-folding portion 4 is provided on the right side edge of the board body 1, and the third edge-folding portion 4 is folded on the right side edge of the board body 1, and the third edge-folding portion 4 includes a third outer panel 41. A third horizontal plate 42, a third inner plate 43, a third fixing plate 44, a first connecting plate 45, and a second connecting plate 46, and the third outer plate 41 is connected to the side of the plate body 1 Edge, the third horizontal plate 42 is connected to the third outer plate 41, the third inner plate 43 is connected to the third horizontal plate 42, the third fixing plate 44 is connected to the third inner plate 43, and the third fixing plate 44 is combined with one surface of the board body 1, so that the third outer plate 41 is disposed corresponding to the third inner plate 43, and the first connecting plate 45 is disposed on one of the third outer plates 41 Side and connected to the first outer plate 21, the second connecting plate 46 is arranged on the other side of the third outer plate 41 and connected to the second outer plate 31, so that the third flange 4 is used when folding The first connecting plate 45 and the second connecting plate 46 respectively drive the first outer plate 21 and the second outer plate 31, and the third inner plate 43 has a first limiting groove 431 and a The second limiting slot 432, the first embedding portion 231 and the third embedding portion 331 are respectively embedded in the first limiting slot 431 and the second limiting slot 432.

The fourth flange portion 5 is provided on the left side edge of the board body 1, and the fourth flange portion 5 is folded on the left side edge of the board body 1, and the fourth flange portion 5 includes a fourth outer panel 51. A fourth horizontal plate 52, a fourth inner plate 53, a fourth fixing plate 54, a third connecting plate 55, and a fourth connecting plate 56, the fourth outer plate 51 is connected to the side of the plate body 1 Edge, the fourth horizontal plate 52 is connected to the fourth outer plate 51, the fourth inner plate 53 is connected to the fourth horizontal plate 52, the fourth fixing plate 54 is connected to the fourth inner plate 53, and the fourth fixing plate 54 is coupled to one surface of the board body 1, so that the fourth outer plate 51 is arranged corresponding to the fourth inner plate 53, and the third connecting plate 55 is arranged on one side of the fourth outer plate 51 and connected to the first The outer plate 21, the fourth connecting plate 56 is arranged on the other side of the fourth outer plate 51 and connected to the second outer plate 31, so that the fourth flange portion 5 uses the third connecting plate 55 when folding The first outer plate 21 and the second outer plate 31 are driven by the fourth connecting plate 56 respectively, and both sides of the fourth inner plate 53 are respectively provided with a third limiting groove 531 and a fourth limiting groove 532 , The second embedding portion 232 and the fourth embedding portion 332 are respectively embedded in the first The third limiting slot 531 and the fourth limiting slot 532.

When the foldable box of the present invention is not folded, the first fold portion 2 and the second fold portion 3 are in the shape of a flat plate, and the third fold portion 4 and the fourth fold portion are folded The side portion 5 is folded in the direction of the plate body 1, so that the third outer plate 41 and the third inner plate 43 are stacked on each other, the third inner plate 43 abuts against the plate body 1, and the third horizontal The plate 42 abuts against the third inner plate 43 and is located on one side of the third outer plate 41; similarly, the fourth outer plate 51 and the fourth inner plate 53 are stacked on each other, and the fourth inner plate 53 Abuts against the plate body 1, and the fourth transverse plate 52 abuts against the fourth inner plate 53 and is located on one side of the fourth outer plate 51, so that the third flange 4 and the fourth fold The side portion 5 is in a flat state, so the first hem portion 2, the second hem portion 3, the third hem portion 4, and the fourth hem portion 5 can be placed on the board before folding. 1. The upper, lower, left and right sides are flat, so that most folding boxes before folding can be stacked and stored to avoid taking up too much storage space.

When the folding box of the present invention is to be folded for use, the third folding part 4 and the fourth folding part 5 can be moved away from the board 1 (that is, to the right side of the board 1). And the left edge) are folded, so that the third flange 4 is fixed by the third fixing plate 44, so that the third outer plate 41, the third horizontal plate 42 and the third inner plate 43 are linked to each other , So that the third outer plate 41 and the third inner plate 43 are upright on the plate body 1 and correspond to each other, and the third horizontal plate 42 is located on the third outer plate 41 and the third inner plate 43 above, and the fourth flange part 5 is fixed by the fourth fixing plate 54 so that the fourth outer plate 51, the fourth horizontal plate 52 and the fourth inner plate 53 are linked to each other to make The fourth outer plate 51 and the fourth inner plate 53 are upright on the plate body 1 and correspond to each other, and the fourth horizontal plate 52 is located above the fourth outer plate 51 and the fourth inner plate 53 When the third flange portion 4 and the fourth flange portion 5 are folded in a direction away from the plate body 1, the first connecting plate 45, the second connecting plate 46, the first The three connecting plates 55 and the fourth connecting plate 56 respectively drive the first outer plate 21 and the second outer plate 31, so that the first outer plate 21 and the second outer plate 31 move toward the third flange 4 and The fourth flange portion 5 is abutted, and the first inner plate 23 and the second outer plate 31 are folded down, so that the first fixing plate 24 abuts against the plate body 1, and causes the first The embedding portion 231 and the third embedding portion 331 are respectively embedded in the first limiting groove 431 and the second limiting groove 432, and the bottom surfaces on both sides of the first horizontal plate 22 abut against the first The top surface of the three horizontal plate 42 and the top surface of the fourth horizontal plate 52, and allow the second fixing plate 34 to abut against the plate body 1, and make the second embedding portion 232 and the fourth embedding portion 332 is respectively embedded in the third limiting groove 531 and the fourth limiting groove 532, and the bottom surfaces on both sides of the second horizontal plate 32 abut against the top surface of the third horizontal plate 42 and the fourth horizontal plate 42 respectively. The top surface of the horizontal plate 52, in this way, the folding of the box body can be completed. With the aforementioned folding method, the folding of the third folding part 4 and the fourth folding part 5 can be used to drive the first folding part 2 and the second folding part 3, which is really easy to use. Operation and quick folding type.

In an embodiment of the present invention, the plate body 1, the first flange portion 2, The second hemming part 3, the third hemming part 4, and the fourth hemming part 5 are integrally formed of paper materials. This is not only quick to fold, but also can reduce production costs and has the effect of recycling and environmental protection.

In an embodiment of the present invention, a first fold line 101 is formed between the first outer plate 21 and the board body 1, and a second fold line 102 is formed between the first outer plate 21 and the first horizontal plate 22 , There is a third fold line 103 between the first horizontal plate 22 and the first inner plate 23, and a fourth fold line 104 is formed between the first inner plate 23 and the first fixing plate 24 as the first The folding type of the folding part 2. In this way, even if the first outer panel 21 abuts on the third fold portion 4 and the fourth fold portion 5 by the first fold line 101, and the second fold line 102 and the third fold line 103 The first inner panel 23 is folded down so that the bottom surfaces on both sides of the first transverse panel 22 abut against the top surface of the third transverse panel 42 and the top surface of the fourth transverse panel 52 respectively, and then let the The first fixing plate 24 is folded by the fourth folding line 104 and abuts against the plate body 1, fully demonstrating the effect of easy operation and quick folding.

In an embodiment of the present invention, a fifth fold line 105 is formed between the second outer plate 31 and the board body 1, and a sixth fold line 106 is formed between the second outer plate 31 and the second horizontal plate 32 , There is a seventh fold line 107 between the second horizontal plate 32 and the second inner plate 33, and an eighth fold line 108 is formed between the second inner plate 33 and the second fixing plate 34 as the second The folding type of the folding part 3. In this way, even if the second outer plate 31 abuts on the third hemming part 4 and the fourth hemming part 5 by the fifth folding line 105, and by the first folding line 105, The six fold line 106 and the seventh fold line 107 turn the second inner panel 33 downward so that the bottom surfaces on both sides of the second transverse panel 32 abut against the top surface of the third transverse panel 42 and the first On the top surface of the four horizontal plates 52, the second fixing plate 34 is folded by the eighth fold line 108 to abut the plate body 1, fully demonstrating the effect of easy operation and quick folding.

In an embodiment of the present invention, both sides of the third horizontal plate 42 have a first supporting portion 421 and a second supporting portion 422, so that the first horizontal plate 22 and the second horizontal plate 32 are folded Then, it abuts against the first supporting portion 421 and the second supporting portion 422 respectively. In this way, by the support of the first supporting portion 421 and the second supporting portion 422, the first edge folding portion 2 and the second edge folding portion 3 can be stabilized after being folded.

In an embodiment of the present invention, both sides of the third inner plate 43 have a first blocking portion 433 and a second blocking portion 434, and the first outer plate 21 and the second outer plate 31 are folded After being molded, they abut against the first blocking portion 433 and the second blocking portion 434 respectively. In this way, when the first outer plate 21 and the second outer plate 31 abut against the third flange portion 4 and the fourth flange portion 5, the first stop portion 433 and the second The stop of the blocking portion 434 is restricted to avoid excessive folding of the first outer plate 21 and the second outer plate 31, fully demonstrating the effect of easy operation and quick folding.

In an embodiment of the present invention, the first connecting plate 45 and the second connecting plate 46 respectively have a first oblique fold line 451 and a second oblique fold line 461, so that the third fold portion 4 is folded after being folded. , Let the first connecting plate 45 use The first oblique fold line 451 is folded and abuts against the first inner plate 23, and the second connecting plate 46 is folded by the second oblique fold line 461 and abuts against the second inner plate 33. In this way, the folding type of the first connecting plate 45 and the second connecting plate 46 can fully demonstrate the effect of easy operation and quick folding.

In an embodiment of the present invention, both sides of the fourth horizontal plate 52 have a third supporting portion 521 and a fourth supporting portion 522, respectively. The first horizontal plate 22 and the second horizontal plate 32 are folded after being folded. It abuts against the third supporting portion 521 and the fourth supporting portion 522 respectively. In this way, by the support of the third support portion 521 and the fourth support portion 522, the first edge folding portion 2 and the second edge folding portion 3 can be stabilized after being folded.

In an embodiment of the present invention, both sides of the fourth inner plate 53 have a third blocking portion 533 and a fourth blocking portion 534 respectively, and the first outer plate 21 and the second outer plate 31 are folded After being shaped, they abut against the third blocking portion 533 and the fourth blocking portion 534 respectively. In this way, when the first outer plate 21 and the second outer plate 31 abut against the third flange portion 4 and the fourth flange portion 5, the third stopper portion 533 and the fourth flange portion 5 The stop of the blocking portion 534 is limited to avoid excessive folding of the first outer plate 21 and the second outer plate 31, and fully demonstrates the effect of easy operation and quick folding.

In an embodiment of the present invention, the third connecting plate 55 and the fourth connecting plate 56 have a third oblique fold line 551 and a fourth oblique fold line 561, respectively, so that the fourth fold portion 5 is folded after being folded. , Let the third connecting plate 55 be folded by the third oblique fold line 551 and abut against the first inner plate 23, and make the The fourth connecting plate 56 is folded by the fourth oblique folding line 561 and abuts against the second inner plate 33. In this way, the folding type of the third connecting plate 55 and the fourth connecting plate 56 can fully demonstrate the effect of easy operation and quick folding.

In summary, the foldable box of the present invention is obvious and effectively improves the lack of habit. It can make the plate body, the first hem section, the second hem section, the third hem section and the fourth fold before folding. The edges are flat to avoid occupying storage space; when folding, the folding of the third and fourth folding parts is used to drive the first and second folding parts, so that the present invention It is easy to operate and can be folded quickly, which really makes the present invention more practical, and meets the needs of the manufacturers and users for their own convenience. It has the basic requirements for patent application, and the invention application is filed in accordance with the law.

However, the above are only preferred embodiments of the present invention. Of course, the scope of implementation of the technology of the present invention cannot be limited in this regard. Therefore, all equivalent modifications and applications made with reference to the scope of patent application and specification of the present invention should still belong to the approved patent office of the present invention. The scope of coverage is stated here.

1: Board body

2: The first hemming part

21: The first outer panel

22: The first horizontal board

23: The first inner panel

231: The first embedding part

232: The second embedding part

24: The first fixed plate

3: The second hemming part

31: second outer panel

32: The second horizontal board

33: second inner panel

331: third embedding part

332: The fourth embedding part

34: second fixing plate

4: The third hemming part

41: third outer panel

42: third horizontal board

421: First Support

422: second support

43: third inner panel

431: first limit slot

432: second limit slot

433: The First Block

434: The second block

44: Third fixed plate

45: The first connection board

451: First diagonal polyline

46: second connecting plate

461: second diagonal polyline

5: The fourth folding part

51: Fourth Outer Board

52: The fourth horizontal board

521: Third Support

522: Fourth Support

53: Fourth inner panel

531: Third Limit Slot

532: Fourth Limit Slot

533: The Third Block

534: The Fourth Block

54: The fourth fixing plate

55: The third connecting plate

551: Third diagonal line

56: The fourth connecting plate

561: Fourth Diagonal Line

101: The first polyline

102: Second broken line

103: third broken line

104: Fourth broken line

105: Fifth broken line

106: Sixth broken line

107: Seventh broken line

108: Eighth fold line

Claims (10)

A folding box body includes: a plate body; a first edge-folding part arranged on the upper side edge of the plate body, and the first edge-folding part is folded on the upper side edge of the plate body, The first flange portion includes a first outer plate, a first horizontal plate, a first inner plate, and a first fixing plate, the first outer plate is connected to the upper side edge of the plate body, and the first horizontal plate The first outer plate is connected, the first inner plate is connected to the first horizontal plate, the first fixing plate is connected to the first inner plate, and both sides of the first inner plate are respectively provided with a first embedding portion and a A second embedding portion; a second edge-folding portion, which is provided on the lower side edge of the board body, the second edge-folding portion is folded on the lower side edge of the board body, and the second edge-folding portion includes a A second outer plate, a second horizontal plate, a second inner plate, and a second fixing plate, the second outer plate is connected to the lower side edge of the plate body, the second horizontal plate is connected to the second outer plate, the The second inner plate is connected to the second horizontal plate, the second fixing plate is connected to the second inner plate, and both sides of the second inner plate are respectively provided with a third embedding portion and a fourth embedding portion; A three-folded edge portion, which is arranged on the right side edge of the board body, the third edge-folded portion is folded on the right side edge of the board body, and the third edge-folded portion includes a third outer panel and a third horizontal panel , A third inner plate, a third fixing plate, a first connecting plate and a second connecting plate, the third outer plate is connected to the side edge of the plate body, and the third horizontal plate is connected to the third outer plate, The third inner plate is connected to the third horizontal plate, and the first Three fixing plates are connected to the third inner plate, and the third fixing plate is combined with one surface of the plate body, so that the third outer plate and the third inner plate are arranged correspondingly, and the first connecting plate is arranged on the third One side of the outer plate is connected to the first outer plate, and the second connecting plate is arranged on the other side of the third outer plate and connected to the second outer plate, so that the third flange part uses the The first connecting plate and the second connecting plate respectively drive the first outer plate and the second outer plate, and both sides of the third inner plate are respectively provided with a first limiting slot and a second limiting slot, the The first embedding portion and the third embedding portion are respectively embedded in the first limiting groove and the second limiting groove; and a fourth flanged portion, which is provided on the left side edge of the board, the first The four-folded part is folded on the left edge of the board. The fourth folded part includes a fourth outer plate, a fourth horizontal plate, a fourth inner plate, a fourth fixing plate, and a third connection. Plate and a fourth connecting plate, the fourth outer plate is connected to the side edge of the plate body, the fourth horizontal plate is connected to the fourth outer plate, the fourth inner plate is connected to the fourth horizontal plate, and the fourth fixing plate The fourth inner plate is connected, and the fourth fixing plate is combined with one surface of the plate body, so that the fourth outer plate and the fourth inner plate are arranged correspondingly, and the third connecting plate is arranged on the fourth outer plate One side is connected to the first outer plate, and the fourth connecting plate is arranged on the other side of the fourth outer plate and connected to the second outer plate, so that the fourth flange part uses the third connection when folding The plate and the fourth connecting plate respectively drive the first outer plate and the second outer plate, and both sides of the fourth inner plate are respectively provided with a third limiting slot and a fourth limiting slot, and the second embedding The connecting portion and the fourth embedding portion are respectively embedded in the third limiting groove and the fourth limiting groove. The foldable box described in item 1 of the scope of patent application, wherein the plate body, the first hem portion, the second hem portion, the third hem portion, and the fourth hem portion are made of paper Made of one-piece material. According to the foldable box described in item 1 of the scope of patent application, a first fold line is formed between the first outer plate and the plate body, and a second fold line is formed between the first outer plate and the first horizontal plate. A fold line, a third fold line is provided between the first horizontal plate and the first inner plate, and a fourth fold line is provided between the first inner plate and the first fixing plate as a fold of the first fold part type. According to the foldable box described in item 1 of the scope of patent application, there is a fifth fold line between the second outer plate and the plate body, and a sixth fold line is formed between the second outer plate and the second horizontal plate. A fold line, a seventh fold line is formed between the second horizontal plate and the second inner plate, and an eighth fold line is formed between the second inner plate and the second fixed plate, which serves as a fold of the second fold portion type. According to the foldable box described in item 1 of the scope of patent application, the third horizontal plate has a first supporting part and a second supporting part on both sides, and the first horizontal plate and the second horizontal plate are folded After being molded, they abut against the first supporting portion and the second supporting portion respectively. According to the foldable box described in item 1 of the scope of patent application, the third inner plate has a first stopper portion and a second stopper portion on both sides of the third inner plate, and the first outer plate and the second outer plate After the plate is folded, it abuts against the first resisting portion and the second resisting portion respectively. For the folding box described in item 1 of the scope of patent application, the first connecting plate and the second connecting plate respectively have a first oblique fold line and a second oblique fold line, so that After the third flange portion is folded, the first connecting plate is folded using the first oblique fold line and abuts against the first inner plate, and the second connecting plate is folded using the second oblique fold line And abut against the second inner plate. According to the foldable box described in item 1 of the scope of patent application, the fourth horizontal plate has a third supporting portion and a fourth supporting portion on both sides, and the first horizontal plate and the second horizontal plate are folded After being molded, they abut against the third supporting portion and the fourth supporting portion respectively. According to the foldable box described in item 1 of the scope of patent application, the fourth inner plate has a third blocking portion and a fourth blocking portion on both sides of the fourth inner plate, and the first outer plate and the second outer plate After the plate is folded, it abuts against the third resisting portion and the fourth resisting portion respectively. For the folding box described in item 1 of the scope of patent application, the third connecting plate and the fourth connecting plate respectively have a third oblique fold line and a fourth oblique fold line, so that the fourth fold part is folded After molding, the third connecting plate is folded using the third oblique fold line and abuts against the first inner plate, and the fourth connecting plate is folded using the fourth oblique fold line and abuts against the second inner plate. plate.

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