Packing box of telescopic folder capable of being drawn left and right and transformed into body

Abstract

The utility model provides a packaging box capable of pulling a variable telescopic folder left and right, which comprises a left ground box, a right ground box, a telescopic chain, a box cover and a connecting plate, each of the left ground box and the right ground box comprises a first folding surface A, a second folding surface A, a third folding surface A and a fourth folding surface A which are formed by cutting and folding corrugated paper and are connected in sequence, a fifth folding surface A and a sixth folding surface A which are formed on two opposite sides of the second folding surface A in the width direction, and a seventh folding surface A and an eighth folding surface A which are formed on one side of the third folding surface A in the width direction and are connected in sequence; the ninth folding face A and the tenth folding face A are formed on the other side of the third folding face A in the width direction and connected in sequence, the eleventh folding face A is formed on the side, close to the fourth folding face A, of the seventh folding face A, and the twelfth folding face A is formed on the side, close to the fourth folding face A, of the ninth folding face A. The packaging box is formed by cutting and folding corrugated paper, is simple, convenient and rapid to form, conforms to the idea of environmental protection, can be flatly spread for transportation, and saves transportation cost.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to a packaging box that can be pulled out to the left and right to transform into a retractable folder. Background Technology

[0002] Chinese patent announcement number CN211281902U, published on August 18, 2020, discloses a biodegradable packaging box, including two sets of outer shells. The two sets of outer shells are hinged to each other on both sides by a shrink-fit frame. The shrink-fit frame has multiple sets of first and second support frames, with the first and second support frames connected at their midpoints by a pivot shaft. The top and bottom of the multiple sets of first and second support frames are connected by a connecting shaft. This invention, by setting a shrink-fit frame between the two sets of outer shells and having a base plate movably connected to a base via a slider, allows the shrink-fit frame to unfold on both sides of the outer shell when the size of the object to be packaged changes. The rubber strip on the top of the outer shell generates a reaction force when stretched, bringing the outer shell closer to the object and preventing it from easily falling out. The drawback of this prior art is that it is inconvenient for storage and transportation, increasing transportation costs. Therefore, a solution is urgently needed. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a packaging box that can be pulled out to the left and right to transform into a retractable folder. It is made of corrugated cardboard that is cut and folded, which is simple and quick to form, conforms to the concept of environmental protection, and can be laid flat for transportation, saving transportation costs.

[0004] This utility model provides a packaging box that can be pulled out to transform into a retractable folder, including a left bottom box, a right bottom box, a retractable chain, and a box lid. The left bottom box and the right bottom box are connected on opposite sides by a retractable chain to form a packaging box body. The box lid is correspondingly placed over the top opening of the packaging box body; it also includes a connecting plate.

[0005] Both the left and right floor boxes include a first fold A, a second fold A, a third fold A, a fourth fold A, a fifth fold A and a sixth fold A formed on opposite sides of the second fold A in the width direction, a seventh fold A and an eighth fold A formed on one side of the third fold A in the width direction and connected in sequence, a ninth fold A and a tenth fold A formed on the other side of the third fold A in the width direction and connected in sequence, an eleventh fold A formed on the side of the seventh fold A that is close to the fourth fold A, and a twelfth fold A formed on the side of the ninth fold A that is close to the fourth fold A. A first insertion port is provided at the connection between the third fold A and the fourth fold A, and a second insertion port is provided at the connection between the second fold A and the third fold A.

[0006] The box lid includes a first folded surface B, a second folded surface B, and a third folded surface B and a fourth folded surface B, which are formed by cutting and folding a corrugated cardboard and connecting to each other. The third folded surface B is formed with a first tongue on the side away from the second folded surface B, and the fourth folded surface B is formed with a second tongue on the side away from the second folded surface B.

[0007] The connecting plate includes a main fold surface cut from a corrugated paper and limiting blocks formed on opposite sides of the main fold surface along its length; the width of the main fold surface is set to N, the length of the first insertion port is set to M, the length of the limiting block is set to L, N = M, N + L > M;

[0008] When the left and right floor boxes are in the formed state, the second fold surface A is folded upwards at 90°, the fifth and sixth fold surfaces A are folded towards the fourth fold surface A at 90°, the ninth and seventh fold surfaces A are folded upwards at 90°, the twelfth fold surface A is folded inwards at 180° and then comes into contact with the sixth fold surface A, the eleventh fold surface A is folded inwards at 180° and then comes into contact with the fifth fold surface A, and the tenth fold surface A is folded inwards at 180°, making the... The sixth fold surface A and the twelfth fold surface A are sandwiched between the ninth fold surface A and the tenth fold surface A. The eighth fold surface A is folded inward by 180° so that the eleventh fold surface A and the fifth fold surface A are sandwiched between the eighth fold surface A and the seventh fold surface A. The fourth fold surface A is folded inward by 180°. The first fold surface A is folded inward by 180° to the side of the third fold surface A. The two sides of the connecting plate are respectively inserted into the first insertion slots of the left base box and the right base box.

[0009] The first folded surface B is folded 180° toward the second folded surface B and then comes into contact with the second folded surface B.

[0010] When the packaging box is sealed, the second tongue is inserted into the second insertion port of the left box, the fourth fold B is in contact with the second fold A, the first fold B covers the opening end of the packaging box, the third fold B is in contact with the second fold A of the right box, and the first tongue is inserted into the second insertion port of the right box.

[0011] When the folder is in use, after the lid is removed, the left and right bottom boxes are pulled apart by a corresponding distance along the length of the connecting plate under the connection of the shrink chain.

[0012] Preferably, a first slot is cut on the side of the fourth fold surface A away from the third fold surface A, and a first limiting block is formed on the side of the first fold surface A away from the second fold surface A and at the position corresponding to the first slot; when in the formed state, the first limiting block is inserted into the first slot.

[0013] Preferably, the tenth fold A has a second slot cut on the side away from the ninth fold A, the eighth fold A has a third slot cut on the side away from the seventh fold A, and the fourth fold A has second limiting blocks formed on opposite sides in the width direction to cooperate with the second and third slots; when in the formed state, the second limiting blocks on both sides are respectively inserted into the second and third slots.

[0014] Preferably, the shrink chain comprises multiple corrugated paper strips and multiple metal buttons, wherein the multiple corrugated paper strips are stretched and connected to the packaging box body in a cross-shaped manner through the metal buttons.

[0015] Preferably, the fifth fold A, sixth fold A, seventh fold A, eighth fold A, ninth fold A, tenth fold A, eleventh fold A, and twelfth fold A are all provided with insertion holes that mate with the metal button.

[0016] The beneficial effects of this utility model are as follows: it includes a left bottom box, a right bottom box, a shrink chain, a box lid, and a connecting plate, all of which are cut and folded from corrugated paper. They can be laid flat for transportation, saving transportation costs. Furthermore, the corrugated paper is cut and folded, making the forming process simple and quick, which is in line with the concept of environmental protection. After the first use, it can be transformed into a folder for use, thereby achieving the purpose of secondary use, improving applicability, and further enhancing its environmental protection function. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention in a sealed state.

[0018] Figure 2 This is a three-dimensional schematic diagram of the present invention in the open state.

[0019] Figure 3 This is a three-dimensional diagram showing the packaging box and lid in a separated state.

[0020] Figure 4 This is a three-dimensional schematic diagram of the packaging box.

[0021] Figure 5 This is a schematic diagram of the present invention in the form of a folder in use.

[0022] Figure 6 This is a schematic diagram showing the left and right ground boxes in their unfolded planar state.

[0023] Figure 7 This is a schematic diagram showing the connecting plates in a planar unfolded state.

[0024] Figure 8 This is a schematic diagram showing the box lid in its unfolded, flat state.

[0025] The attached diagram is labeled as follows: Left base box 11, Right base box 12, Shrink chain 13, Box lid 10, Packaging box body 14, Connecting plate 16, First tongue 15, Second tongue 17, Corrugated paper 20, Metal button 19, First fold A21, Second fold A22, Third fold A23, Fourth fold A24, Fifth fold A25, Sixth fold A26, Seventh fold A27, Eighth fold A28, Ninth fold A29, Tenth fold A30, Eleventh fold A31, Second insertion port 32, First insertion port 33, Twelfth fold A34, Insertion hole 35, Main fold 36, First fold B37, Second fold B39, Fourth fold B40, First slot 41, First limiting block 42, Third slot 43, Second slot 44, Second limiting block 45, Limiting block 46, Book 47. Detailed Implementation

[0026] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with specific embodiments and accompanying drawings.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Please refer to Figure 1-8As shown, this utility model provides a packaging box that can be pulled out to the left and right to transform into a retractable folder, including a left bottom box 11, a right bottom box 12, a retractable chain 13, and a box lid 10. The left bottom box 11 and the right bottom box 12 are connected on opposite sides by the retractable chain 13 to form a packaging box body 14. The box lid 10 is correspondingly placed on the top opening of the packaging box body 14; it also includes a connecting plate 16.

[0029] Both the left base box 11 and the right base box 12 include a first folded surface A21, a second folded surface A22, a third folded surface A23, a fourth folded surface A24, a fifth folded surface A25 and a sixth folded surface A26 formed on opposite sides of the width direction of the second folded surface A22, a seventh folded surface A27 and an eighth folded surface A28 formed on one side of the width direction of the third folded surface A23 and connected in sequence, a ninth folded surface A29 and a tenth folded surface A30 formed on the other side of the width direction of the third folded surface A23 and connected in sequence, an eleventh folded surface A31 formed on the side of the seventh folded surface A27 close to the fourth folded surface A24, and a twelfth folded surface A34 formed on the side of the ninth folded surface A29 close to the fourth folded surface A24. A first insertion port 33 is provided at the connection between the third folded surface A23 and the fourth folded surface A24, and a second insertion port 32 is provided at the connection between the second folded surface A22 and the third folded surface A23.

[0030] The lid 10 includes a first folded surface B37, a second folded surface B39, and a third folded surface B38 and a fourth folded surface B40 respectively formed on opposite sides of the second folded surface B39 along its length. A first tongue 15 is formed on the side of the third folded surface B38 away from the second folded surface B39, and a second tongue 17 is formed on the side of the fourth folded surface B40 away from the second folded surface B39.

[0031] The connecting plate 16 includes a main folded surface 36 cut from a corrugated paper and limiting blocks 46 respectively formed on opposite sides of the main folded surface 36 in the length direction; the width of the main folded surface 36 is set to N, the length of the first insertion port 33 is set to M, the length of the limiting block 46 is set to L, N=M, N+L>M;

[0032] When the left base box 11 and the right base box 12 are in the formed state, the second fold surface A22 is folded upwards at 90°, the fifth fold surface A25 and the sixth fold surface A26 are folded upwards at 90° to the side of the fourth fold surface A24, the ninth fold surface A29 and the seventh fold surface A27 are folded upwards at 90°, the twelfth fold surface A34 is folded inwards at 180° and then comes into contact with the sixth fold surface A26, the eleventh fold surface A31 is folded inwards at 180° and then comes into contact with the fifth fold surface A25, and the tenth fold surface A30 is folded inwards at 180° and then... The sixth fold surface A26 and the twelfth fold surface A34 are sandwiched between the ninth fold surface A29 and the tenth fold surface A30. The eighth fold surface A28 is folded inward by 180°, so that the eleventh fold surface A31 and the fifth fold surface A25 are sandwiched between the eighth fold surface A28 and the seventh fold surface A27. The fourth fold surface A24 is folded inward by 180°. The first fold surface A21 is folded 180° to the side of the third fold surface A23. The two sides of the connecting plate 16 are respectively inserted into the first insertion slots 33 of the left base box 11 and the right base box 12.

[0033] After the first fold surface B37 is folded 180° toward the second fold surface B39, it comes into contact with the second fold surface B39.

[0034] When the packaging box is sealed, the second tongue 17 is inserted into the second insertion port 32 of the left bottom box 11, the fourth fold surface B40 is in contact with the second fold surface A22, the first fold surface B37 covers the opening end of the packaging box body 14, the third fold surface B38 is in contact with the second fold surface A22 of the right bottom box 12, and the first tongue 15 is inserted into the second insertion port 32 of the right bottom box 12.

[0035] When the folder is in use, after removing the lid 10, the left and right bottom boxes 11 and 12 are pulled apart along the length of the connecting plate 16 by the retracting chain 13. When the connecting plate 16 is in its fully extended state, it is stopped by the limiting blocks 46 on both sides to prevent it from detaching from the left and right bottom boxes 11 and 12. At this time, books 47 or other items can be placed inside the folder.

[0036] Preferably, a first slot 41 is cut out on the side of the fourth fold surface A24 away from the third fold surface A23, and a first limiting block 42 is formed on the side of the first fold surface A21 away from the second fold surface A22 and at a position corresponding to the first slot 41; when in the formed state, the first limiting block 42 is inserted into the first slot 41. A second slot 44 is cut out on the side of the tenth fold surface A30 away from the ninth fold surface A29, and a third slot 43 is cut out on the side of the eighth fold surface A28 away from the seventh fold surface A27. Second limiting blocks 45 are formed on opposite sides of the fourth fold surface A24 in the width direction to cooperate with the second slot 44 and the third slot 43; when in the formed state, the second limiting blocks 45 on both sides are inserted into the second slot 44 and the third slot 43 respectively. With this structural arrangement, it is ensured that the left base box 11 and the right base box 12 in the formed state can maintain a good folded shape without deformation.

[0037] Preferably, the shrink chain 13 comprises multiple corrugated paper strips 20 and multiple metal buttons 19. The corrugated paper strips 20 are stretched and connected to the packaging box body 14 in a crisscross manner via the metal buttons 19. The fifth fold A25, sixth fold A26, seventh fold A27, eighth fold A28, ninth fold A29, tenth fold A30, eleventh fold A31, and twelfth fold A34 are all provided with insertion holes 35 that mate with the metal buttons 19. Multiple sets of corrugated paper strips are formed by overlapping pairs of two corrugated paper strips and rotating them together via metal buttons 19. The upper and lower ends of adjacent sets of corrugated paper strips are also rotated and connected via metal buttons 19. The first and second sets of corrugated paper strips are rotated and connected to the left bottom box 11 and the right bottom box 12 via metal buttons 19, respectively.

[0038] In this embodiment, the device includes a left base box, a right base box, a shrink chain, a lid, and a connecting plate, all formed by cutting and folding corrugated cardboard. It can be laid flat for transportation, saving on transportation costs. Furthermore, the corrugated cardboard is easy and quick to cut and fold, which aligns with the concept of environmental protection. After the first use, it can be transformed into a folder for reuse, thereby achieving the purpose of secondary use, improving its applicability, and further enhancing its environmental protection function.

[0039] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A packaging box that can be pulled out to transform into a retractable folder, comprising a left base box (11), a right base box (12), a retractable chain (13), and a lid (10), wherein the left base box (11) and the right base box (12) are connected on opposite sides by the retractable chain (13) to form a packaging box body (14), and the lid (10) is correspondingly placed over the top opening of the packaging box body (14); characterized in that: It also includes connecting plates (16); Both the left base box (11) and the right base box (12) include a first folded surface A (21), a second folded surface A (22), a third folded surface A (23), a fourth folded surface A (24) formed by cutting and folding corrugated paper and connected in sequence; a fifth folded surface A (25) and a sixth folded surface A (26) formed on opposite sides of the second folded surface A (22) in the width direction; a seventh folded surface A (27) and an eighth folded surface A (28) formed on one side of the third folded surface A (23) in the width direction and connected in sequence; and a fifth folded surface A (25) and a sixth folded surface A (26) formed on the other side of the third folded surface A (23) in the width direction. The ninth fold A (29) and the tenth fold A (30) are connected in sequence, the eleventh fold A (31) is formed on the side of the seventh fold A (27) that is close to the fourth fold A (24), and the twelfth fold A (34) is formed on the side of the ninth fold A (29) that is close to the fourth fold A (24). A first insertion port (33) is cut at the connection between the third fold A (23) and the fourth fold A (24), and a second insertion port (32) is cut at the connection between the second fold A (22) and the third fold A (23). The lid (10) includes a first folded surface B (37) and a second folded surface B (39) formed by cutting and folding a corrugated cardboard and connecting them to each other, a third folded surface B (38) and a fourth folded surface B (40) formed on opposite sides of the second folded surface B (39) in the length direction, a first tongue (15) is formed on the side of the third folded surface B (38) away from the second folded surface B (39), and a second tongue (17) is formed on the side of the fourth folded surface B (40) away from the second folded surface B (39). The connecting plate (16) includes a main fold (36) cut from a corrugated paper and limiting blocks (46) formed on opposite sides of the main fold (36) in the length direction; the width of the main fold (36) is set to N, the length of the first insertion port (33) is set to M, the length of the limiting block (46) is set to L, N = M, N + L > M; When the left floor box (11) and the right floor box (12) are in the formed state, the second fold surface A (22) is folded upwards at 90°, the fifth fold surface A (25) and the sixth fold surface A (26) are folded towards the fourth fold surface A (24) at 90°, the ninth fold surface A (29) and the seventh fold surface A (27) are folded upwards at 90°, the twelfth fold surface A (34) is folded inwards at 180° and then comes into contact with the sixth fold surface A (26), the eleventh fold surface A (31) is folded inwards at 180° and then comes into contact with the fifth fold surface A (25), and the tenth fold surface A (30) is folded inwards at 180° and then the sixth fold surface A (26 ... 26) and the twelfth fold A (34) are sandwiched between the ninth fold A (29) and the tenth fold A (30). The eighth fold A (28) is folded inward by 180° so that the eleventh fold A (31) and the fifth fold A (25) are sandwiched between the eighth fold A (28) and the seventh fold A (27). The fourth fold A (24) is folded inward by 180°. The first fold A (21) is folded 180° to the side of the third fold A (23). The two sides of the connecting plate (16) are respectively inserted into the first insertion port (33) of the left base box (11) and the right base box (12). After the first folded surface B (37) is folded 180° toward the side of the second folded surface B (39), it comes into contact with the second folded surface B (39); When the packaging box is sealed, the second tongue (17) is inserted into the second insertion port (32) of the left bottom box (11), the fourth fold surface B (40) is in contact with the second fold surface A (22), the first fold surface B (37) covers the opening end of the packaging box body (14), the third fold surface B (38) is in contact with the second fold surface A (22) of the right bottom box (12), and the first tongue (15) is inserted into the second insertion port (32) of the right bottom box (12). When the folder is in use, after the lid (10) is removed, the left bottom box (11) and the right bottom box (12) are pulled apart by a corresponding distance along the length of the connecting plate (16) under the connection of the shrink chain (13).

2. The packaging box that can be pulled out left and right to transform into a retractable folder according to claim 1, characterized in that: The fourth fold surface A (24) is provided with a first slot (41) on the side away from the third fold surface A (23). The first fold surface A (21) is provided with a first limiting block (42) on the side away from the second fold surface A (22) and at the position corresponding to the first slot (41). When in the forming state, the first limiting block (42) is inserted into the first slot (41).

3. The packaging box that can be pulled out left and right to transform into a retractable folder according to claim 1, characterized in that: The tenth fold A (30) has a second slot (44) cut on the side away from the ninth fold A (29), the eighth fold A (28) has a third slot (43) cut on the side away from the seventh fold A (27), and the fourth fold A (24) has second limiting blocks (45) formed on opposite sides in the width direction to cooperate with the second slot (44) and the third slot (43); when in the formed state, the second limiting blocks (45) on both sides are respectively inserted into the second slot (44) and the third slot (43).

4. The packaging box that can be pulled out left and right to transform into a retractable folder according to claim 1, characterized in that: The shrink chain (13) consists of multiple corrugated paper strips (20) and multiple metal buttons (19). The multiple corrugated paper strips (20) are stretched and connected to the packaging box body (14) in a cross manner through the metal buttons (19).

5. A packaging box that can be pulled out left and right to transform into a retractable folder according to claim 4, characterized in that: The fifth fold A (25), sixth fold A (26), seventh fold A (27), eighth fold A (28), ninth fold A (29), tenth fold A (30), eleventh fold A (31), and twelfth fold A (34) are all provided with insertion holes (35) that mate with the metal button (19).

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