A combined packaging box with mortise and tenon structure

Abstract

The present invention discloses a combined packaging box with a mortise and tenon structure, comprising a tenon body and two tenons; a tenon body is installed between the two tenons to engage with each other. The box type of the present invention draws on the connection method of the mortise and tenon, which can effectively limit the twisting of each independent part in all directions; although each component is relatively thin, it can withstand huge pressure as a whole. The advantage of this structure does not lie in the individual strength, but in the mutual combination and support of each independent part. At the same time, the mortise and tenon structure is the crystallization of the wisdom of ancient Chinese craftsmen. The reason why the box type of the present invention draws on the mortise and tenon structure is also a tribute to and inheritance of ancient Chinese wisdom.

Description

Technical Field

[0001] The invention relates to a combined packaging box with a mortise and tenon structure. Background Art

[0002] The existing combined packaging structures on the market have multiple independent parts, and each independent part is usually connected by bonding. This connection method has the disadvantages of cumbersome production and complex process. Summary of the invention

[0003] The purpose of the present invention is to provide a combined packaging box with a mortise and tenon structure. The box type of the present invention draws on the connection method of mortise and tenon, which can effectively limit the twisting of each independent part in all directions; although each component is relatively thin, it can withstand huge pressure as a whole. The advantage of this structure is not the strength of the individual, but the combination and support of each independent part. At the same time, the mortise and tenon structure is the crystallization of the wisdom of ancient Chinese craftsmen. The reason why the box type of the present invention draws on the mortise and tenon structure is also a tribute to and inheritance of ancient Chinese wisdom.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A combined packaging box with a mortise and tenon structure comprises a tenon body and two mortise bodies; a tenon body is installed between the two mortise bodies to be interlocked and connected with each other.

[0006] The mortise body comprises a rectangular first cover plate, wherein the two long sides of the rectangular first cover plate are respectively overlapped and connected with the bottom sides of the polygonal first panel and the polygonal second panel and are pressed with a first fold line; the two short sides of the rectangular first cover plate are respectively overlapped and connected with a long side of the rectangular outer panel and the rectangular oblique side plate and are pressed with a second fold line; the other long side of the rectangular oblique side plate is overlapped and connected with a long side of the rectangular second cover plate and is pressed with a third fold line; the two short sides of the rectangular oblique side plate are respectively overlapped and connected with the bottom sides of a trapezoidal first supporting plate and are pressed with a fourth fold line; the other long side of the rectangular second cover plate is overlapped and connected with a long side of the rectangular third connecting plate and is pressed with a fortieth fold line; the other long side of the rectangular third connecting plate is overlapped and connected with a long side of the rectangular first supporting plate and is pressed with a fifth fold line;

[0007] The side edge of one side of the polygonal first panel and the side edge of one side of the polygonal second panel are respectively overlapped and connected with one long side of a rectangular second support plate and pressed with a sixth fold line; the polygonal first panel is integrally formed with a right-angled trapezoidal support plate, a square cover plate, and a rectangular third support plate;

[0008] The first polygonal panel and the second polygonal panel are respectively provided with a first split opening, a second split opening, and a third split opening; the side formed after the first split opening is opened is used as a hypotenuse, the side formed after the second split opening is opened is used as a right-angle side, the side of the first polygonal panel or the second polygonal panel between the outer endpoints of the first split opening and the second split opening is used as an upper base, and the seventh fold line pressed on the first polygonal panel or the second polygonal panel between the inner endpoints of the first split opening and the second split opening is used as a lower base to form a right-angled trapezoidal support plate;

[0009] The side formed after the second split opening is opened is used as the first side of the square, the side formed after the third split opening is opened is used as the third side opposite to the first side of the square, the side of the polygonal first panel or the polygonal second panel between the outer endpoints of the second split opening and the third split opening is used as the second side of the square, and the eighth fold line pressed on the polygonal first panel or the polygonal second panel between the inner endpoints of the second split opening and the third split opening is used as the fourth side of the square to form a square cover;

[0010] The side formed after the third split opening is opened is used as a long side of the rectangle, the side of the other side of the polygonal first panel or the side of the other side of the polygonal second panel is used as the other long side of the rectangle, the side of the polygonal first panel or the polygonal second panel between the third split opening and the outer end point on the other long side of the rectangle is used as a short side of the rectangle, and the ninth fold line pressed on the polygonal first panel or the polygonal second panel between the third split opening and the inner end point on the other long side of the rectangle is used as the other short side of the rectangle to enclose a rectangular third support plate;

[0011] The edge on the polygonal second panel is also overlapped and connected with a short side of the rectangular third cover plate and pressed with a tenth fold line; one of the long sides of the rectangular third cover plate is overlapped and connected with a long side of the rectangular inner plate and pressed with an eleventh fold line; the other long side of the rectangular third cover plate is overlapped and connected with a long side of the rectangular first connecting plate and pressed with a twelfth fold line; the other long side of the rectangular first connecting plate is overlapped and connected with a long side of the rectangular first step plate and pressed with a thirteenth fold line; the other long side of the rectangular first step plate is overlapped and connected with a long side of the rectangular second connecting plate and pressed with a fourteenth fold line; the other long side of the rectangular second connecting plate is overlapped and connected with a long side of the rectangular second step plate and pressed with a fifteenth fold line; the other short side of the rectangular third cover plate is overlapped and connected with the bottom plate of the trapezoidal bonding plate and pressed with a sixteenth fold line.

[0012] The length of the short side of the rectangular first cover plate is equal to the length of the long sides of the rectangular outer plate, the rectangular oblique side plate, the rectangular third cover plate, the rectangular first connecting plate, the rectangular first step plate, the rectangular second connecting plate, the rectangular second step plate, the rectangular second cover plate, the rectangular third connecting plate, and the rectangular first supporting plate; the length of the short side of the rectangular second cover plate is equal to the length of the short side of the rectangular first step plate.

[0013] The tenon body comprises a rectangular fourth cover plate, a rectangular fifth cover plate, a rectangular sixth cover plate and a rectangular seventh cover plate of the same size and shape; one long side of the rectangular fourth cover plate is overlapped and connected with one long side of the rectangular fifth cover plate and a seventeenth fold line is pressed thereon; the other long side of the rectangular fifth cover plate is overlapped and connected with one long side of the rectangular sixth cover plate and a seventeenth fold line is pressed thereon; the other long side of the rectangular sixth cover plate is overlapped and connected with one long side of the rectangular seventh cover plate and a seventeenth fold line is pressed thereon; the other long side of the rectangular seventh cover plate is overlapped and connected with the bottom side of the trapezoidal bonding plate and a eighteenth fold line is pressed thereon; the two short sides of the rectangular fourth cover plate and the two short sides of the rectangular sixth cover plate are respectively overlapped and connected with the bottom sides of the polygonal support plate and a nineteenth fold line is pressed thereon; the rectangular fifth cover plate One of the short sides of the rectangular sixth cover plate is overlapped and connected with one short side of the first rectangular side cover plate and is pressed with the twentieth fold line; one of the short sides of the rectangular sixth cover plate is overlapped and connected with one short side of the second rectangular side cover plate and is pressed with the twentieth fold line; the other short side of the first rectangular side cover plate and the other short side of the second rectangular side cover plate are respectively overlapped and connected with one long side of the rectangular tongue and are pressed with the twenty-first fold line; and the first rectangular side cover plate and the second rectangular side cover plate are no longer in the same direction; the length of the long side of the rectangular fourth cover plate, the rectangular fifth cover plate, the rectangular sixth cover plate and the rectangular seventh cover plate is equal to the length of the short side of the rectangular first cover plate in the mortise; the length of the short side of the rectangular fourth cover plate, the rectangular fifth cover plate, the rectangular sixth cover plate and the rectangular seventh cover plate is equal to the side length of the square cover plate in the mortise.

[0014] The beneficial effects of the present invention are as follows: in order to achieve a more convenient and simple connection method, the present invention uses the structure of mortise and tenon joints to connect the various independent parts in the combined package.

[0015] The mortise and tenon joint is a concave-convex connection method used on two wooden components. The protruding part is called the tenon (or tenon head); the concave part is called the mortise (or mortise, mortise groove). The tenon and the mortise fit together to connect, which is the main structural method of ancient Chinese architecture, furniture and other wooden instruments. The box type of the present invention draws on the connection method of the mortise and tenon joint, which can effectively limit the twisting of each independent part in all directions; although each component is relatively thin, it can withstand huge pressure as a whole. The advantage of this structure is not the strength of the individual, but the combination and support of each independent part. At the same time, the mortise and tenon structure is the crystallization of the wisdom of ancient Chinese craftsmen. The reason why the box type of the present invention draws on the mortise and tenon structure is also a tribute to and inheritance of ancient Chinese wisdom.

[0016] The main feature of the box type of the present invention is that the three independent box bodies are combined into one without pasting by using the principle of the mortise and tenon structure. The opening of the box body requires certain steps. The middle tenon must be pulled out first before the three independent box bodies can be separated. The process of opening the box is full of fun. Each independent box body can be integrally formed and is easy to manufacture and produce, which can be applied to some goods on the market that are sold together but need to be packaged separately. Due to the irregular shape of the box body, it is more suitable for the packaging of bulk solids. The box type of the present invention can package a variety of goods and also has the function of display, which can be suitable for shelf display. Since the box body adopts the mortise and tenon structure, it is recommended for the packaging of assembly toys with educational functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the unfolding of the mortise of the present invention;

[0018] Figure 2 It is a schematic diagram of the unfolding of the tenon body of the present invention;

[0019] Figure 3 It is an assembly diagram of the present invention;

[0020] Figure 4 It is a schematic diagram of the overall structure after installation of the present invention. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figure 1 , 2 As shown in Figures 3 and 4, a combined packaging box with a mortise and tenon structure in this embodiment includes 1 tenon and 2 mortise bodies; 1 tenon is installed between the two mortise bodies to be interlocked and connected with each other.

[0023] The mortise body comprises a rectangular first cover plate 1, wherein the two long sides of the rectangular first cover plate 1 are respectively overlapped and connected with the bottom sides of the polygonal first panel 2 and the polygonal second panel 3 and are pressed with a first folding line 4; the two short sides of the rectangular first cover plate 1 are respectively overlapped and connected with a long side of a rectangular outer panel 5 and a rectangular oblique side panel 6 and are pressed with a second folding line 7; the other long side of the rectangular oblique side panel 6 is overlapped and connected with a long side of a rectangular second cover plate 8 and is pressed with a third folding line 9; the two short sides of the rectangular oblique side panel 6 are respectively overlapped and connected with the bottom sides of a trapezoidal first support plate 10 and are pressed with a fourth folding line 11; the other long side of the rectangular second cover plate 8 is overlapped and connected with a long side of a rectangular third connecting plate 12 and is pressed with a fourth folding line 13; the other long side of the rectangular third connecting plate 12 is overlapped and connected with a long side of a rectangular first support plate 14 and is pressed with a fifth folding line 15;

[0024] The side edge of one side of the polygonal first panel 2 and the side edge of one side of the polygonal second panel 3 are respectively overlapped and connected with one long side of a rectangular second support plate 16 and pressed with a sixth fold line 17; the polygonal first panel 2 is integrally formed with a right-angled trapezoidal support plate 20, a square cover plate 21, and a rectangular third support plate 22;

[0025] The polygonal first panel 2 and the polygonal second panel 3 are respectively provided with a first split opening 18, a second split opening 19, and a third split opening 23; the side formed after the first split opening 18 is opened is used as a hypotenuse, the side formed after the second split opening 19 is opened is used as a right-angle side, the side of the polygonal first panel 2 or the polygonal second panel 3 between the outer endpoints of the first split opening 18 and the second split opening 19 is used as an upper base, and the seventh fold line 24 pressed on the polygonal first panel 2 or the polygonal second panel 3 between the inner endpoints of the first split opening 18 and the second split opening 19 is used as a lower base to form a right-angled trapezoidal support plate 20;

[0026] The side formed after the second split opening 19 is opened is used as the first side of the square, the side formed after the third split opening 23 is opened is used as the third side opposite to the first side of the square, the side of the polygonal first panel 2 or the polygonal second panel 3 between the outer endpoints of the second split opening 19 and the third split opening 23 is used as the second side of the square, and the eighth fold line 25 pressed on the polygonal first panel 2 or the polygonal second panel 3 between the inner endpoints of the second split opening 19 and the third split opening 23 is used as the fourth side of the square to form a square cover plate 21;

[0027] The side formed after the third split opening 23 is opened is used as a long side of the rectangle, the side of the other side of the polygonal first panel 2 or the side of the other side of the polygonal second panel 3 is used as the other long side of the rectangle, the side of the polygonal first panel 2 or the polygonal second panel 3 between the third split opening 23 and the outer end point on the other long side of the rectangle is used as a short side of the rectangle, and the ninth fold line 26 pressed on the polygonal first panel 2 or the polygonal second panel 3 between the third split opening 23 and the inner end point on the other long side of the rectangle is used as the other short side of the rectangle to enclose the rectangular third support plate 22;

[0028] The edge of the polygonal second panel 3 is also overlapped and connected with a short side of the rectangular third cover plate 28 and pressed with a tenth fold line 29; one of the long sides of the rectangular third cover plate 28 is overlapped and connected with a long side of the rectangular inner plate 30 and pressed with an eleventh fold line 31; the other long side of the rectangular third cover plate 28 is overlapped and connected with a long side of the rectangular first connecting plate 32 and pressed with a twelfth fold line 33; the other long side of the rectangular first connecting plate 32 is overlapped and connected with the rectangular first step One long side of the plate 34 is overlapped and connected and a thirteenth fold line 35 is pressed; the other long side of the rectangular first step plate 34 is overlapped and connected with a long side of the rectangular second connecting plate 36 and a fourteenth fold line 37 is pressed; the other long side of the rectangular second connecting plate 36 is overlapped and connected with a long side of the rectangular second step plate 38 and a fifteenth fold line 39 is pressed; the other short side of the rectangular third cover plate 28 is overlapped and connected with the bottom plate of the trapezoidal bonding plate 27 and a sixteenth fold line 40 is pressed.

[0029] The length of the short side of the rectangular first cover plate 1 is equal to the length of the long sides of the rectangular outer plate 5, the rectangular oblique side plate 6, the rectangular third cover plate 28, the rectangular first connecting plate 32, the rectangular first step plate 34, the rectangular second connecting plate 36, the rectangular second step plate 38, the rectangular second cover plate 8, the rectangular third connecting plate 12, and the rectangular first support plate 14; the length of the short side of the rectangular second cover plate 8 is equal to the length of the short side of the rectangular first step plate 34.

[0030] The tenon body comprises a rectangular fourth cover plate 41, a rectangular fifth cover plate 42, a rectangular sixth cover plate 43 and a rectangular seventh cover plate 44 of the same size and shape; one long side of the rectangular fourth cover plate 41 is overlapped and connected with one long side of the rectangular fifth cover plate 42 and pressed with a seventeenth fold line 45; the other long side of the rectangular fifth cover plate 42 is overlapped and connected with one long side of the rectangular sixth cover plate 43 and pressed with a seventeenth fold line 45; the rectangular sixth cover plate The other long side of the plate 43 is overlapped and connected with one long side of the rectangular seventh cover plate 44 and pressed with a seventeenth fold line 45; the other long side of the rectangular seventh cover plate 44 is overlapped and connected with the bottom side of the trapezoidal bonding plate 27 and pressed with an eighteenth fold line 46; the two short sides of the rectangular fourth cover plate 41 and the two short sides of the rectangular sixth cover plate 43 are overlapped and connected with the bottom side of the polygonal support plate 47 and pressed with a nineteenth fold line 48; the rectangular fifth cover plate 4 2 is overlapped and connected with a short side of the first rectangular side cover plate 49 and pressed with the twentieth fold line 50; one short side of the seventh rectangular cover plate 44 is overlapped and connected with a short side of the second rectangular side cover plate 51 and pressed with the twentieth fold line 50; the other short side of the first rectangular side cover plate 49 and the other short side of the second rectangular side cover plate 51 are overlapped and connected with a long side of the rectangular tongue 52 and pressed with the twenty-first fold line 53 ; and the first rectangular side cover plate 49 and the second rectangular side cover plate 51 are not in the same direction; the length of the long side of the rectangular fourth cover plate 41, the rectangular fifth cover plate 42, the rectangular sixth cover plate 43 and the rectangular seventh cover plate 44 is equal to the length of the short side of the rectangular first cover plate 1 in the mortise; the length of the short side of the rectangular fourth cover plate 41, the rectangular fifth cover plate 42, the rectangular sixth cover plate 43 and the rectangular seventh cover plate 44 is equal to the side length of the square cover plate 21 in the mortise.

[0031] First, fold the mortise body: fold the polygonal first panel 2 and the polygonal second panel 3 at 90 degrees relative to the rectangular first cover plate 1; then fold the rectangular outer panel 5 at a 90-degree angle to the rectangular first cover plate 1; fold the two rectangular second support plates 16 at 90 degrees to the polygonal first panel 2 and the polygonal second panel 3 respectively so that they are located inside the rectangular outer panel 5 to play a supporting role; then fold the right-angled trapezoidal support plate 20, the square cover plate 21, and the rectangular third support plate 22 at a 90-degree angle to the rectangular first cover plate 1; then fold the rectangular third cover plate 2 8 is folded at an angle of 90 degrees with the polygonal second panel 3, so that the rectangular third cover plate 28 is located on the polygonal first panel 2, and the trapezoidal bonding plate 27 is folded at an angle of 90 degrees with the rectangular third cover plate 28, so that the trapezoidal bonding plate 27 is located on the inner side of the polygonal first panel 2, and the trapezoidal bonding plate 27 can be bonded and fixed to the inner wall surface of the polygonal first panel 2 with double-sided tape; the rectangular inner panel 30 is folded at an angle of 90 degrees with the rectangular third cover plate 28 so that it can just overlap with the rectangular outer panel 5, and then the rectangular inner panel 30 is bonded and fixed to the rectangular outer panel 5 with double-sided tape;

[0032] The rectangular first connecting plate 32 is folded at an angle of 40-50 degrees with the rectangular third cover plate 28, the rectangular first step plate 34 is folded at an angle of 90 degrees with the rectangular first connecting plate 32, the rectangular second connecting plate 36 is folded at an angle of 90 degrees with the rectangular first step plate 34, and the rectangular second step plate 38 is folded at an angle of 90 degrees with the rectangular second connecting plate 36; and the above foldings are all in different directions to form a step shape. The rectangular first step plate 34 is just located on the right-angled trapezoidal support plate 20, and the right-angled trapezoidal support plate 20 supports the rectangular first step plate 34; then the rectangular second step plate 38 is located below the square cover plate 21, and the rectangular second step plate 38 supports the square cover plate 21. At this time, the rectangular first cover plate 1, the polygonal first panel 2, the polygonal second panel 3, the rectangular outer panel 5, the rectangular third cover plate 28, and the rectangular first connecting plate 32 surround the large convex part of the mortise. The square cover plate 21 is used as the position for placing the tenon; the angle and position between the rectangular first connecting plate 32 and the rectangular first step plate 34 become the position for inserting and placing another tenon.

[0033] Then, the rectangular oblique side plate 6 is folded at an angle of 140-150 degrees with the rectangular first cover plate 1, wherein the sum of the angles formed by the rectangular oblique side plate 6 and the rectangular first cover plate 1 and the angles formed by the rectangular first connecting plate 32 and the rectangular third cover plate 28 is exactly equal to 180 degrees. The two trapezoidal first support plates 10 are folded relative to the rectangular oblique side plates 6 at an angle of 90 degrees; the two rectangular third support plates 22 are just mounted on the trapezoidal first support plates 10 respectively; then the rectangular second cover plate 8 is folded at an angle of 90 degrees with the rectangular oblique side plate 6, the rectangular third connecting plate 12 is folded at an angle of 90 degrees with the rectangular second cover plate 8, and the rectangular first support plate 14 is folded at an angle of 90 degrees with the rectangular third connecting plate 12; the rectangular second cover plate 8 is located on the rectangular third support plate 22, and the rectangular third support plate 22 supports the rectangular second cover plate 8; then the rectangular first support plate 14 is located under the square cover plate 21. At this time, the rectangular first cover plate 1, the polygonal first panel 2, the polygonal second panel 3, the rectangular oblique side plate 6, the rectangular second cover plate 8, and the rectangular third connecting plate 12 form a small protrusion of the mortise; the small protrusion can just be inserted between the rectangular first connecting plate 32 and the rectangular first step plate 34 of another mortise.

[0034] Fold the two mortises in the same way.

[0035] Next, fold the tenon body, fold the rectangular fourth cover plate 41, the rectangular fifth cover plate 42, the rectangular sixth cover plate 43 and the rectangular seventh cover plate 44 at an angle of 90 degrees in pairs to form a rectangular parallelepiped, and use double-sided tape to bond the trapezoidal bonding plate 27 to the inner wall surface of the rectangular fourth cover plate 41; fold the first rectangular side cover plate 49 and the rectangular fifth cover plate 42 at an angle of 90 degrees, and insert the rectangular tongue 52 into the rectangular parallelepiped; fold the second rectangular side cover plate 51 and the rectangular seventh cover plate 44 at an angle of 90 degrees, and insert the rectangular tongue 52 into the rectangular parallelepiped; and form a sealed rectangular parallelepiped.

[0036] Then, cover the two mortise bodies up and down so that the small protrusion of the first mortise body is located between the rectangular first connecting plate 32 and the rectangular first step plate 34 of the second mortise body; so that the small protrusion of the second mortise body is located between the rectangular first connecting plate 32 and the rectangular first step plate 34 of the first mortise body; in this way, the square cover plate 21 of the first mortise body is opposite to the square cover plate 21 of the second mortise body, forming a position that is just enough to place the sealed rectangular tenon body, which is the so-called mortise; at this time, the inserted rectangular tenon body can just be interlocked and connected with the two mortise bodies.

[0037] The main feature of the box type of this embodiment is that the three independent box bodies are combined into one without pasting using the principle of the mortise and tenon structure. The opening of the box body requires certain steps. The middle tenon must be pulled out first before the three independent box bodies can be separated; the process of opening the box is full of fun; each independent box body can be formed in one piece and is easy to manufacture and produce, which can be applied to some goods on the market that are sold together but need to be packaged separately. Due to the irregular shape of the box body, it is more suitable for the packaging of bulk solids. The box type of this embodiment can package a variety of goods while also having the function of display, and can be applied to shelf display. Since the box body adopts the mortise and tenon structure, it is recommended for the packaging of assembly toys with educational functions. The box type of this embodiment draws on the connection method of the mortise and tenon, which can effectively limit the twisting of each independent part in all directions; although each component is relatively thin, it can withstand huge pressure as a whole. The advantage of this structure is not that the individual is strong, but that the independent parts are combined and supported with each other. At the same time, the mortise and tenon structure is the crystallization of the wisdom of ancient Chinese craftsmen. The reason why the box type of this embodiment draws on the mortise and tenon structure is also a tribute to and inheritance of ancient Chinese wisdom.

Claims

1. A combination packaging box with a mortise and tenon structure, characterized in that: The invention comprises a tenon and two mortise bodies; a tenon body is installed between the two mortise bodies and they are interlocked and connected with each other; the mortise body comprises a rectangular first cover plate (1); two long sides of the rectangular first cover plate (1) are respectively overlapped and connected with the bottom sides of a polygonal first panel (2) and a polygonal second panel (3) and a first folding line (4) is pressed; two short sides of the rectangular first cover plate (1) are respectively overlapped and connected with one long side of a rectangular outer panel (5) and a rectangular oblique side panel (6) and a second folding line (7) is pressed; the other long side of the rectangular oblique side panel (6) is overlapped and connected with the bottom sides of a rectangular outer panel (5) and a rectangular oblique side panel (6) and a second folding line (7) is pressed; One long side of the rectangular second cover plate (8) is overlapped and connected and a third fold line (9) is pressed; two short sides of the rectangular oblique side plate (6) are overlapped and connected with the bottom side of a trapezoidal first support plate (10) and a fourth fold line (11) is pressed; another long side of the rectangular second cover plate (8) is overlapped and connected with one long side of the rectangular third connecting plate (12) and a fortieth fold line (13) is pressed; another long side of the rectangular third connecting plate (12) is overlapped and connected with one long side of the rectangular first support plate (14) and a fifth fold line (15) is pressed; The side edge of one side of the polygonal first panel (2) and the side edge of one side of the polygonal second panel (3) are respectively overlapped and connected with a long side of a rectangular second support plate (16) and pressed with a sixth fold line (17); a right-angled trapezoidal support plate (20), a square cover plate (21), and a rectangular third support plate (22) are integrally formed and installed on the polygonal first panel (2); The polygonal first panel (2) and the polygonal second panel (3) are respectively provided with a first split opening (18), a second split opening (19), and a third split opening (23); the side formed after the first split opening (18) is opened is used as a hypotenuse, the side formed after the second split opening (19) is opened is used as a right-angle side, the side of the polygonal first panel (2) or the polygonal second panel (3) between the outer endpoints of the first split opening (18) and the second split opening (19) is used as an upper base, and the seventh fold line (24) pressed on the polygonal first panel (2) or the polygonal second panel (3) between the inner endpoints of the first split opening (18) and the second split opening (19) is used as a lower base to form a right-angled trapezoidal support plate (20); The side formed after the second split opening (19) is opened serves as the first side of the square, the side formed after the third split opening (23) is opened serves as the third side opposite to the first side of the square, the side of the polygonal first panel (2) or the polygonal second panel (3) between the outer endpoints of the second split opening (19) and the third split opening (23) serves as the second side of the square, and the eighth fold line (25) pressed on the polygonal first panel (2) or the polygonal second panel (3) between the inner endpoints of the second split opening (19) and the third split opening (23) serves as the fourth side of the square to form a square cover plate (21); The side formed after the third split opening (23) is opened serves as a long side of the rectangle, the side of the other side of the polygonal first panel (2) or the side of the other side of the polygonal second panel (3) serves as another long side of the rectangle, the side of the polygonal first panel (2) or the polygonal second panel (3) between the third split opening (23) and the outer end point on the other long side of the rectangle serves as a short side of the rectangle, and the ninth fold line (26) pressed on the polygonal first panel (2) or the polygonal second panel (3) between the third split opening (23) and the inner end point on the other long side of the rectangle serves as another short side of the rectangle to enclose a rectangular third support plate (22); The edge of the polygonal second panel (3) is also overlapped and connected with a short side of the rectangular third cover plate (28) and pressed with a tenth fold line (29); one of the long sides of the rectangular third cover plate (28) is overlapped and connected with a long side of the rectangular inner plate (30) and pressed with an eleventh fold line (31); the other long side of the rectangular third cover plate (28) is overlapped and connected with a long side of the rectangular first connecting plate (32) and pressed with a twelfth fold line (33); the other long side of the rectangular first connecting plate (32) is overlapped and connected with a long side of the rectangular first step plate One long side of the rectangular first step plate (34) is overlapped and connected with a thirteenth fold line (35) pressed thereon; another long side of the rectangular first step plate (34) is overlapped and connected with a long side of the rectangular second connecting plate (36) and is pressed thereon with a fourteenth fold line (37); another long side of the rectangular second connecting plate (36) is overlapped and connected with a long side of the rectangular second step plate (38) and is pressed thereon with a fifteenth fold line (39); another short side of the rectangular third cover plate (28) is overlapped and connected with the bottom plate of the trapezoidal bonding plate (27) and is pressed thereon with a sixteenth fold line (40); The tenon body comprises a rectangular fourth cover plate (41), a rectangular fifth cover plate (42), a rectangular sixth cover plate (43) and a rectangular seventh cover plate (44) of the same size and shape; one long side of the rectangular fourth cover plate (41) is overlapped and connected with one long side of the rectangular fifth cover plate (42) and pressed with a seventeenth fold line (45); the other long side of the rectangular fifth cover plate (42) is overlapped and connected with one long side of the rectangular sixth cover plate (43) and pressed with a seventeenth fold line (45); the other long side of the rectangular sixth cover plate (43) is overlapped and connected with one long side of the rectangular seventh cover plate (44) and pressed with the seventeenth fold line (45); Another long side of the rectangular seventh cover plate (44) is connected to the bottom side of the trapezoidal bonding plate (27) and is pressed with an eighteenth fold line (46); two short sides of the rectangular fourth cover plate (41) and two short sides of the rectangular sixth cover plate (43) are respectively connected to the bottom side of the polygonal support plate (47) and are pressed with a nineteenth fold line (48); one of the short sides of the rectangular fifth cover plate (42) is connected to a short side of the first rectangular side cover plate (49) and is pressed with a twentieth fold line (50); one of the short sides of the rectangular seventh cover plate (44) is connected to a short side of the second rectangular side cover plate (51) and is pressed with a The twentieth fold line (50) is provided; the other short side of the first rectangular side cover plate (49) and the other short side of the second rectangular side cover plate (51) are respectively overlapped and connected with a long side of the rectangular tongue (52) and pressed with a twenty-first fold line (53); and the first rectangular side cover plate (49) and the second rectangular side cover plate (51) are not in the same direction; the length of the long side of the fourth rectangular cover plate (41), the fifth rectangular cover plate (42), the sixth rectangular cover plate (43) and the seventh rectangular cover plate (44) is equal to the length of the short side of the first rectangular cover plate (1) in the mortise; the fourth rectangular cover plate (41), the fifth rectangular cover plate (42) and the sixth rectangular cover plate (43) are respectively overlapped and connected with a long side of the rectangular tongue (52) and pressed with a twenty-first fold line (53); and the first rectangular side cover plate (49) and the second rectangular side cover plate (51) are not in the same direction; the length of the long side of the fourth rectangular cover plate (41), the fifth rectangular cover plate (42), the sixth rectangular cover plate (43) and the seventh rectangular cover plate (44) is equal to the length of the short side of the first rectangular cover plate (1) in the mortise; ), the length of the short sides of the rectangular sixth cover plate (43) and the rectangular seventh cover plate (44) is equal to the side length of the square cover plate (21) in the mortise; the length of the short side of the rectangular first cover plate (1) is equal to the length of the long sides of the rectangular outer plate (5), the rectangular oblique side plate (6), the rectangular third cover plate (28), the rectangular first connecting plate (32), the rectangular first step plate (34), the rectangular second connecting plate (36), the rectangular second step plate (38), the rectangular second cover plate (8), the rectangular third connecting plate (12), and the rectangular first supporting plate (14); the length of the short side of the rectangular second cover plate (8) is equal to the length of the short side of the rectangular first step plate (34).

Images