CN214567579U

CN214567579U - Manual lifting type packaging box

Info

Publication number: CN214567579U
Application number: CN202022637513.7U
Authority: CN
Inventors: 朱熳瑶; 何霞
Original assignee: Zhejiang Sci Tech University ZSTU
Current assignee: Zhejiang Sci Tech University ZSTU
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-11-02
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a manual lifting type packing box, which comprises an outer box body, an inner box body and a box cover; an inner box body is arranged in the outer box body, and a box cover is arranged at the top of the outer box body. The utility model discloses use unique functionality and sustainability as the key point, satisfy the demand in consumer and market simultaneously, both possessed the necessary functionality of packing, also can attract the consumer, simultaneously can also used repeatedly.

Description

Manual lifting type packaging box

Technical Field

The utility model relates to a manual over-and-under type packing carton.

Background

The functionality, interest, and sustainability of packaging are increasingly important to the current market, and a good package not only is attractive to the consumer in appearance, but also has more practical functions, and in addition, sustainability is also an important point in the design of current packaging.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manual over-and-under type packing carton. The utility model discloses use unique functionality and sustainability as the key point, satisfy the demand in consumer and market simultaneously, both possessed the necessary functionality of packing, also can attract the consumer, simultaneously can also used repeatedly.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a manual lifting type packing box comprises an outer box body, an inner box body and a box cover; an inner box body is arranged in the outer box body, and a box cover is arranged at the top of the outer box body;

the inner box body comprises a square inner bottom plate, the left side edge of the square inner bottom plate is overlapped and connected with 1 long edge of the first rectangular inner side plate and is pressed with a first crease line, the right side edge of the square inner bottom plate is overlapped and connected with 1 long edge of the second rectangular inner side plate and is pressed with a second crease line, and the length and the width of the first rectangular inner side plate are equal to those of the second rectangular inner side plate; the other 1 long side of the first rectangular inner side plate is overlapped and connected with the 1 long side of the first rectangular edge plate, and a third crease line is pressed; the other 1 long side of the second rectangular inner side plate is overlapped and connected with the 1 long side of the second rectangular edge plate, and a fourth crease line is pressed; the other 1 long side of the first rectangular inner side plate is overlapped and connected with 1 long side of the rectangular insertion plate and is pressed with a fifth crease line, and the other 1 long side of the second rectangular edge plate is also overlapped and connected with 1 long side of the rectangular insertion plate and is pressed with a fifth crease line;

the length and the width of the second rectangular inner side plate are equal to those of the first rectangular support plate; 1 long edge of the first rectangular support plate is overlapped and connected with the left side edge of the square object placing plate, a seventh crease line is pressed on the first long edge, and the side length of the square object placing plate is equal to that of the bottom plate in the square; the right side edge of the square object placing plate is overlapped and connected with 1 long edge of the second rectangular support plate and pressed with an eighth crease line, and the length and the width of the second rectangular support plate are equal to those of the first rectangular support plate; a first knife edge is parallelly carved at the position 0.5-1mm away from the top edge on the square object placing plate, and a second knife edge is also parallelly carved at the position 0.5-1mm away from the bottom edge on the square object placing plate; 3 ninth crease lines vertical to the first knife edge are pressed on the square object placing plate between the first knife edge and the second knife edge at equal intervals; the center of the square object placing plate is provided with a rhombic object placing opening;

the distance between the first knife edge and the square object placing plate is equal to the distance between the second knife edge and the square object placing plate; the distance between the first knife edge and the square object placing plate is equal to the width of the first rectangular edge plate, and the distance between the second knife edge and the square object placing plate is equal to the width of the second rectangular edge plate;

the 2 short edges of the first rectangular inner side plate are respectively overlapped and connected with the lower bottom edge of the first trapezoidal bonding plate and are pressed with tenth crease lines; the other 1 short edge of the second rectangular inner side plate is also overlapped and connected with the lower bottom edge of the first trapezoidal bonding plate and is pressed with a tenth crease line;

and the length positions of the middle one third of the 1 side at the top and the 1 side at the bottom of the square inner bottom plate are respectively overlapped and connected with the bottom edge of the lifting plate and are pressed with eleventh crease lines.

The lifting plate is manufactured by sequentially arranging more than 2 hexagonal lifting small plates, wherein 1 edge of the hexagonal lifting small plates is overlapped and connected, and a twelfth crease line is pressed.

The outer box body comprises a first rectangular outer side plate, a second rectangular outer side plate, a third rectangular outer side plate and a fourth rectangular outer side plate which are equal in length and width, and the length of the short side of the first rectangular outer side plate is equal to the side length of the square inner bottom plate; wherein 1 long side of the first rectangular outer side plate is overlapped and connected with 1 long side of the second rectangular outer side plate, and a thirteenth crease line is pressed; the other 1 long side of the second rectangular outer side plate is overlapped and connected with the 1 long side of the third rectangular outer side plate, and a fourteenth crease line is pressed; the other 1 long side of the third rectangular outer side plate is overlapped and connected with the 1 long side of the fourth rectangular outer side plate, and a fifteenth crease line is pressed; the other 1 long edge of the fourth rectangular outer side plate is overlapped and connected with the lower bottom edge of the second trapezoidal bonding plate, and a sixteenth crease line is pressed; the bottom short edge of the first rectangular outer side plate and the bottom short edge of the third rectangular outer side plate are respectively overlapped and connected with the bottom edge of the pentagonal support plate with the insertion bevel and are pressed with a seventeenth crease line, the bottom short edge of the second rectangular outer side plate is overlapped and connected with the bottom edge of the U-shaped abutting plate and are pressed with an eighteenth crease line, and the bottom short edge of the fourth rectangular outer side plate and the bottom edge of the convex tongue abutting plate matched with the U-shaped abutting plate are overlapped and connected and are pressed with a nineteenth crease line; lifting plate inserting holes are respectively carved on the first rectangular outer side plate and the third rectangular outer side plate;

the box cover comprises a square top cover, and the side length of the square top cover is equal to the length of the short side of the first rectangular outer side plate; the 4 sides of the square top cover are respectively overlapped and connected with 1 long side of the 1 rectangular top cover outer side plate and are pressed with a twenty-second crease line; the other 1 long side of the rectangular top cover outer side plate is overlapped and connected with the 1 long side of the rectangular top cover inner side plate, and a twenty-first crease line is pressed; the other 1 long edge of the rectangular top cover inner side plate is overlapped and connected with the bottom edge of the third trapezoidal bonding plate, and a twenty-second crease line is pressed; wherein 2 short sides of the outer side plate of the rectangular top cover at 2 opposite positions are respectively overlapped with the bottom edge of the right trapezoid pressing plate and are pressed with twenty-third crease lines; and 2 short edges of the rectangular top cover inner side plate connected with the rectangular top cover outer side plate connected with the right trapezoid pressing plate are also respectively connected with the bottom edge of the right trapezoid pressing plate in an overlapping manner and are pressed with a twenty-third crease line.

The utility model has the advantages that: the utility model discloses a manual over-and-under type packing carton has solved the too big problem that can't acquire bottom commodity of ordinary packing carton degree of depth, also has the interest in the use, can regard as the storing box to use repeatedly, embodies its sustainability. The package can be used for containing various commodities such as bulk candies, eggs, toys and the like, and can also be used as a gift box for containing gifts, which is surprised by people. In addition, the packaging shape is mysterious, and more consumers are attracted to purchase the commodities. The utility model discloses use unique functionality and sustainability as the key point, satisfy the demand in consumer and market simultaneously, both possessed the necessary functionality of packing, also can attract the consumer, simultaneously can also used repeatedly.

Drawings

FIG. 1 is a schematic view of the inner case of the present invention;

FIG. 2 is an expanded view of the outer casing of the present invention;

fig. 3 is an expanded view of the cover of the present invention;

FIG. 4 is an enlarged view of the folded outer part of the present invention;

FIG. 5 is an enlarged view of the inner part of the folded box cover when the inner box body is placed at the bottom of the outer box body;

fig. 6 is an enlarged view of the inner part of the folded box body with the box cover opened and the top part arranged in the outer box body.

Detailed Description

Example 1

In the manual lifting type packing box of the embodiment, as shown in fig. 1 to 6, paper with certain strength and stiffness is used as a material, such as white board, paperboard, and kraft paper; comprises an outer box body 1, an inner box body 2 and a box cover 3; an inner box body 2 is arranged in the outer box body 1, and a box cover 3 is arranged at the top of the outer box body 1;

the inner box body 2 comprises a square inner bottom plate 4, the left side edge of the square inner bottom plate 4 is overlapped and connected with 1 long edge of a first rectangular inner side plate 5 and is pressed with a first crease line 6, the right side edge of the square inner bottom plate 4 is overlapped and connected with 1 long edge of a second rectangular inner side plate 7 and is pressed with a second crease line 8, and the length and the width of the first rectangular inner side plate 5 are equal to those of the second rectangular inner side plate 7; the other 1 long side of the first rectangular inner side plate 5 is overlapped and connected with the 1 long side of the first rectangular edge plate 9, and a third crease line 10 is pressed; the other 1 long side of the second rectangular inner side plate 7 is overlapped and connected with the 1 long side of the second rectangular edge plate 11, and a fourth crease line 12 is pressed; the other 1 long side of the first rectangular inner side plate 5 is overlapped and connected with 1 long side of the rectangular insertion plate 13 and is pressed with a fifth crease line 14, and the other 1 long side of the second rectangular edge plate 11 is also overlapped and connected with 1 long side of the rectangular insertion plate 13 and is pressed with a fifth crease line 14;

the length and the width of the second rectangular inner side plate 7 are equal to those of the first rectangular support plate 15; 1 long edge of the first rectangular support plate 15 is overlapped and connected with the left side edge of the square object placing plate 17, a seventh crease line 18 is pressed, and the side length of the square object placing plate 17 is equal to that of the square inner bottom plate 4; the right side edge of the square object placing plate 17 is overlapped and connected with 1 long edge of the second rectangular support plate 19 and pressed with an eighth crease line 20, and the length and the width of the second rectangular support plate 19 are equal to those of the first rectangular support plate 15; a first knife edge 21 is parallelly carved at the position 0.5-1mm away from the top edge on the square object placing plate 17, and a second knife edge 22 is also parallelly carved at the position 0.5-1mm away from the bottom edge on the square object placing plate 17; 3 ninth crease lines 23 vertical to the first knife edge 21 are pressed on the square object placing plate 17 between the first knife edge 21 and the second knife edge 22 at equal intervals; a rhombic storage opening 24 is formed in the center of the square storage plate 17;

the distance between the first knife edge 21 and the square object placing plate 17 is equal to the distance between the second knife edge 22 and the square object placing plate 17; the distance between the first knife edge 21 and the square object placing plate 17 is equal to the width of the first rectangular edge plate 9, and the distance between the second knife edge 22 and the square object placing plate 17 is equal to the width of the second rectangular edge plate 11;

the 2 short edges of the first rectangular inner side plate 5 are respectively overlapped and connected with the lower bottom edge of the first trapezoidal bonding plate 25 and pressed with a tenth crease line 26; the other 1 short edge of the second rectangular inner side plate 7 is also overlapped and connected with the lower bottom edge of the first trapezoidal bonding plate 25 and is pressed with a tenth crease line 26;

the length positions of the middle one third of the 1 top side and the 1 bottom side of the square inner bottom plate 4 are respectively connected with the bottom edge of the lifting plate 27 in an overlapping way and are pressed with eleventh crease lines 28.

The lifting plate 27 is made by sequentially arranging more than 2 hexagonal lifting small plates 29, wherein 1 side of the hexagonal lifting small plates is overlapped and connected, and a twelfth crease line 30 is pressed.

The outer box body 1 comprises a first rectangular outer side plate 31, a second rectangular outer side plate 32, a third rectangular outer side plate 33 and a fourth rectangular outer side plate 34 which are equal in length and width, and the length of the short side of the first rectangular outer side plate 31 is equal to the side length of the square inner bottom plate 4; wherein 1 long side of the first rectangular outer side plate 31 is overlapped and connected with 1 long side of the second rectangular outer side plate 32, and a thirteenth crease line 35 is pressed; the other 1 long side of the second rectangular outer side plate 32 is overlapped and connected with the 1 long side of the third rectangular outer side plate 33, and a fourteenth crease line 36 is pressed; the other 1 long side of the third rectangular outer side plate 33 is overlapped and connected with the 1 long side of the fourth rectangular outer side plate 34, and a fifteenth crease line 37 is pressed; the other 1 long side of the fourth rectangular outer side plate 34 is overlapped and connected with the lower bottom edge of the second trapezoidal bonding plate 38 and is pressed with a sixteenth crease line 39; the bottom short edge of the first rectangular outer side plate 31 and the bottom short edge of the third rectangular outer side plate 33 are respectively overlapped and connected with the bottom edge of the supporting plate 40 with the insertion bevel and are pressed with a seventeenth crease line 41, the bottom short edge of the second rectangular outer side plate 32 is overlapped and connected with the bottom edge of the U-shaped abutting plate 42 and is pressed with an eighteenth crease line 43, and the bottom short edge of the fourth rectangular outer side plate 34 is overlapped and connected with the bottom edge of the convex tongue abutting plate 44 matched with the U-shaped abutting plate 42 and is pressed with a nineteenth crease line 45; the first rectangular outer side plate 31 and the third rectangular outer side plate 33 are respectively engraved with a lifting plate inserting opening 46;

the box cover 3 comprises a square top cover 47, and the side length of the square top cover 47 is equal to the length of the short side of the first rectangular outer side plate 31; the 4 sides of the square top cover 47 are respectively overlapped and connected with 1 long side of 1 rectangular top cover outer side plate 48 and pressed with a twenty-second crease line 49; the other 1 long side of the rectangular top cover outer side plate 48 is overlapped and connected with the 1 long side of the rectangular top cover inner side plate 50, and a twenty-first crease line 51 is pressed; the other 1 long side of the rectangular top cover inner side plate 50 is overlapped and connected with the bottom edge of the third trapezoidal bonding plate 52, and a twenty-second crease line 53 is pressed; wherein 2 short sides of the rectangular top cover outer side plate 48 at 2 opposite positions are respectively overlapped with the bottom edge of the right trapezoid pressing plate 54 and pressed with a twenty-third crease line 55; the 2 short sides of the rectangular top cover inner panel 50 connected to the rectangular top cover outer panel 48 to which the rectangular-trapezoid-shaped presser plate 54 is connected are also overlapped and connected to the bottom side of the rectangular-trapezoid-shaped presser plate 54, respectively, and a twenty-third crease line 55 is embossed.

During folding, the first step: folding the outer box 1, folding the first rectangular outer side plate 31, the second rectangular outer side plate 32, the third rectangular outer side plate 33 and the fourth rectangular outer side plate 34 along the respective connected crease lines at an angle of 90 degrees to form a hollow rectangular outer box, and fixing the inner surface of the first rectangular outer side plate 31 and the inner surface of the second trapezoidal bonding plate 38 by using adhesive; the U-shaped pressing plate 42 is folded at an angle of 90 degrees with the second rectangular outer side plate 32 along the eighteenth crease line 43, and then the support plate 40 with the inserted bevel-opening pentagon is folded at an angle of 90 degrees with the first rectangular outer side plate 31 and the third rectangular outer side plate 33 along the seventeenth crease line 41; and folding the tongue pressing plate 44 along the nineteenth crease line 45 at an angle of 90 degrees with the fourth rectangular outer side plate 34, and inserting the tongue on the tongue pressing plate 44 with the oblique mouth on the oblique-mouth pentagonal supporting plate 40 into the U-shaped mouth of the U-shaped pressing plate 42 to build a stable base structure.

The second step is that: folding the box cover 3, folding 4 rectangular top cover outer side plates 48 at an angle of 90 degrees with the square top cover 47 along twenty-second crease lines 49 respectively, and then folding the rectangular top cover inner side plates 50 at an angle of 180 degrees with the rectangular top cover outer side plates 48 along twenty-first crease lines 51, namely, overlapping the rectangular top cover inner side plates 50 and the rectangular top cover outer side plates 48; the right-angle trapezoidal pressing plates 54 are inserted between the adjacent rectangular top cover inner side plates 50 and the rectangular top cover outer side plates 48 for fixing; finally, the third trapezoidal adhesive panel 52 is folded along the twenty-second crease line 53 at an angle of 90 degrees with respect to the rectangular top cover inner side panel 50, and can just abut against the inner surface of the square top cover 47 and then be fixed with glue.

Thirdly, folding the inner box body 2, wherein the first rectangular inner side plate 5 is folded at an angle of 90 degrees with the square inner bottom plate 4 along the first crease line 6 and the second rectangular inner side plate 7 along the second crease line 8; then, the first rectangular support plate 15 is folded along the sixth crease line 16 at an angle of 90 degrees with the second rectangular inner side plate 7, so that the first rectangular support plate 15 can be vertically placed on the square inner bottom plate 4; the square storage plate 17 is folded along the seventh crease line 18 and the second rectangular inner side plate 7 at an angle of 90 degrees, and the square storage plate 17 is just positioned on the square inner bottom plate 4 and is parallel to the square inner bottom plate; then, the second rectangular support plate 19 is folded along the eighth crease line 20 at an angle of 90 degrees with the square object placing plate 17, so that the second rectangular support plate 19 can be vertically placed on the square inner bottom plate 4 after being folded; the first trapezoidal adhesive sheet 25 connected to the short sides of the first rectangular inner side plate 5 and the first trapezoidal adhesive sheet 25 connected to the short sides of the second rectangular inner side plate 7 are overlapped and bonded to the inner wall surfaces of the adjacent first rectangular bracket plate 15 and second rectangular bracket plate 19.

Then, the first rectangular edge plate 9 and the first rectangular inner side plate 5 are folded at an angle of 90 degrees along the third crease line 10, and the second rectangular edge plate 11 and the second rectangular inner side plate 7 are folded at an angle of 90 degrees along the fourth crease line 12; thus, the first rectangular edge plate 9 is overlapped at the position between the first knife edge 21 and the square object placing plate 17, and the second rectangular edge plate 11 is overlapped at the position between the second knife edge 22 and the square object placing plate 17; thus, after the 2 rectangular insertion plates 13 are folded along the fifth crease line 14, the insertion plates can be just inserted into the first knife edge 21 and the second knife edge 22 respectively; the diamond-shaped article placing opening 24 can also be adjusted in size according to the shape and size of the built-in articles, and the 3 ninth crease lines 23 are also used for being slightly folded downwards corresponding to the height of the built-in articles so as to meet the use requirement of the diamond-shaped article in the outer box body.

Finally, the folded inner box 2 is placed into the cavity of the folded outer box 1, and the two lifting plates 27 are respectively inserted through the lifting plate insertion openings 46 of the first rectangular outer side plate 31 and the lifting plate insertion openings 46 of the third rectangular outer side plate 33 and are positioned outside the outer box 1.

Two lifting plates 27 can be manually pulled at ordinary times to pull the inner box body 2 to ascend and descend.

The manual over-and-under type packing carton of this embodiment has solved the too big problem that can't acquire bottom commodity of ordinary packing carton degree of depth, also has the interest in the use, can regard as the storing box to use repeatedly, embodies its sustainability. The package can be used for containing various commodities such as bulk candies, eggs, toys and the like, and can also be used as a gift box for containing gifts, which is surprised by people. In addition, the packaging shape is mysterious, and more consumers are attracted to purchase the commodities.

Claims

1. The utility model provides a manual over-and-under type packing carton which characterized in that: comprises an outer box body (1), an inner box body (2) and a box cover (3); an inner box body (2) is arranged in the outer box body (1), and a box cover (3) is arranged at the top of the outer box body (1);

the inner box body (2) comprises a square inner bottom plate (4), the left side edge of the square inner bottom plate (4) is overlapped and connected with 1 long edge of a first rectangular inner side plate (5) and is pressed with a first crease line (6), the right side edge of the square inner bottom plate (4) is overlapped and connected with 1 long edge of a second rectangular inner side plate (7) and is pressed with a second crease line (8), and the length and the width of the first rectangular inner side plate (5) and the second rectangular inner side plate (7) are equal; the other 1 long side of the first rectangular inner side plate (5) is overlapped and connected with the 1 long side of the first rectangular edge plate (9) and is pressed with a third crease line (10); the other 1 long side of the second rectangular inner side plate (7) is overlapped and connected with the 1 long side of the second rectangular edge plate (11) and is pressed with a fourth crease line (12); the other 1 long side of the first rectangular inner side plate (5) is overlapped and connected with 1 long side of the rectangular insertion plate (13) and is pressed with a fifth crease line (14), and the other 1 long side of the second rectangular edge plate (11) is also overlapped and connected with 1 long side of the rectangular insertion plate (13) and is pressed with a fifth crease line (14);

the length and the width of the second rectangular inner side plate (7) are equal to those of the first rectangular support plate (15); 1 long edge of the first rectangular support plate (15) is overlapped and connected with the left side edge of the square object placing plate (17) and is pressed with a seventh crease line (18), and the side length of the square object placing plate (17) is equal to that of the square inner bottom plate (4); the right side edge of the square object placing plate (17) is overlapped and connected with 1 long edge of the second rectangular support plate (19) and is pressed with an eighth crease line (20), and the length and the width of the second rectangular support plate (19) are equal to those of the first rectangular support plate (15); a first knife edge (21) is parallelly carved at a position 0.5-1mm away from the top edge on the square object placing plate (17), and a second knife edge (22) is also parallelly carved at a position 0.5-1mm away from the bottom edge on the square object placing plate (17); 3 ninth crease lines (23) vertical to the first knife edge (21) are pressed on the square object placing plate (17) between the first knife edge (21) and the second knife edge (22) at equal intervals; a rhombic storage opening (24) is formed in the center of the square storage plate (17);

the distance between the first knife edge (21) and the square object placing plate (17) is equal to the distance between the second knife edge (22) and the square object placing plate (17); the distance between the first knife edge (21) and the square object placing plate (17) is equal to the width of the first rectangular edge plate (9), and the distance between the second knife edge (22) and the square object placing plate (17) is equal to the width of the second rectangular edge plate (11);

the 2 short edges of the first rectangular inner side plate (5) are respectively overlapped and connected with the lower bottom edge of the first trapezoidal bonding plate (25) and pressed with a tenth crease line (26); the other 1 short side of the second rectangular inner side plate (7) is also overlapped and connected with the lower bottom edge of the first trapezoidal bonding plate (25) and is pressed with a tenth crease line (26);

the length positions of the middle one third of 1 side at the top and 1 side at the bottom of the square inner bottom plate (4) are respectively overlapped and connected with the bottom edge of the lifting plate (27) and are pressed with eleventh crease lines (28).

2. The manual lift package of claim 1, wherein: the lifting plate (27) is made by sequentially arranging more than 2 hexagonal lifting small plates (29) and pressing a twelfth crease line (30) by overlapping and connecting 1 edge of the hexagonal lifting small plates.

3. The manual lift package of claim 1, wherein: the outer box body (1) comprises a first rectangular outer side plate (31), a second rectangular outer side plate (32), a third rectangular outer side plate (33) and a fourth rectangular outer side plate (34) which are equal in length and width, and the length of the short side of the first rectangular outer side plate (31) is equal to the side length of the square inner bottom plate (4); wherein 1 long edge of the first rectangular outer side plate (31) is overlapped and connected with 1 long edge of the second rectangular outer side plate (32) and is pressed with a thirteenth crease line (35); the other 1 long side of the second rectangular outer side plate (32) is overlapped and connected with the 1 long side of the third rectangular outer side plate (33) and is pressed with a fourteenth crease line (36); the other 1 long side of the third rectangular outer side plate (33) is overlapped and connected with the 1 long side of the fourth rectangular outer side plate (34) and is pressed with a fifteenth crease line (37); the other 1 long edge of the fourth rectangular outer side plate (34) is overlapped and connected with the lower bottom edge of the second trapezoidal bonding plate (38) and is pressed with a sixteenth crease line (39); the bottom short edge of the first rectangular outer side plate (31) and the bottom short edge of the third rectangular outer side plate (33) are respectively overlapped and connected with the bottom edge of a pentagonal support plate (40) with an inserted oblique opening and are pressed with a seventeenth crease line (41), the bottom short edge of the second rectangular outer side plate (32) is overlapped and connected with the bottom edge of a U-shaped abutting plate (42) and are pressed with an eighteenth crease line (43), and the bottom short edge of the fourth rectangular outer side plate (34) is overlapped and connected with the bottom edge of a convex tongue abutting plate (44) matched with the U-shaped abutting plate (42) and is pressed with a nineteenth crease line (45); lifting plate inserting holes (46) are respectively carved on the first rectangular outer side plate (31) and the third rectangular outer side plate (33);

the box cover (3) comprises a square top cover (47), and the side length of the square top cover (47) is equal to the length of the short side of the first rectangular outer side plate (31); the 4 sides of the square top cover (47) are respectively overlapped and connected with 1 long side of 1 rectangular top cover outer side plate (48) and pressed with a twenty-second crease line (49); the other 1 long side of the rectangular top cover outer side plate (48) is overlapped and connected with 1 long side of the rectangular top cover inner side plate (50) and is pressed with a twenty-first crease line (51); the other 1 long edge of the rectangular top cover inner side plate (50) is overlapped and connected with the bottom edge of the third trapezoidal bonding plate (52) and is pressed with a twenty-second crease line (53); wherein 2 short sides of the rectangular top cover outer side plate (48) at 2 opposite positions are respectively overlapped with the bottom edge of the right trapezoid pressing plate (54) and are pressed with a twenty-third crease line (55); the 2 short sides of the rectangular top cover inner side plate (50) connected with the rectangular top cover outer side plate (48) connected with the right trapezoid pressing plate (54) are also respectively overlapped and connected with the bottom edge of the right trapezoid pressing plate (54) and pressed with a twenty-third crease line (55).