Paperboard bearing structure

Abstract

The utility model discloses a paperboard bearing structure, which relates to the technical field of transportation parts, and comprises a corrugated paperboard, a corrugated carton body is formed by folding the corrugated paperboard, the corrugated carton body comprises a rear side page, a left side page, a right side page and two inner folders, the inner folders are folded twice, so that the inner folders are integrally in a right-angle triangle shape, and the inner folders are folded twice. The short right-angle sides of the two inner hinges are located on the same horizontal plane and located on the opposite side of the rear side hinge, the short right-angle sides of the two inner hinges form the front side hinge, and the long right-angle sides and the bevel edges of the inner hinges are folded into the corrugated carton body; an opening groove is transversely formed in the rear side page, the two inner folding pages are each provided with an inner connection inserting groove, a locking plate is further arranged, the locking plate is in a long strip shape, a locking groove is formed in the middle of one end of the locking plate, and the locking plate can penetrate through the opening groove so that the locking groove can be inserted into the inner connection inserting grooves of the two inner folding pages; self-locking fixation is achieved, and local stress concentration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of transportation component technology, specifically to a cardboard load-bearing structure. Background Technology

[0002] From everyday express delivery parcels to product transport packaging in industrial production, corrugated cardboard is widely used. The packaging quality of automotive parts affects the integrity and safety of the product during transportation and storage. Automotive parts are diverse, ranging from precision electronic components to heavy mechanical parts, with significant differences in weight, shape, and protection requirements. Corrugated cardboard, with its low cost, high processability, and environmentally friendly recyclability, has become one of the commonly used materials for the base trays of automotive parts packaging.

[0003] Existing corrugated cardboard trays for packaging automotive parts suffer from several technical problems. Firstly, their load-bearing capacity is insufficient to withstand the pressure of heavy automotive parts. For example, large components such as engine blocks and transmissions are heavy, and ordinary corrugated cardboard trays are prone to collapse and deformation under load, causing parts to shift or collide during transportation. This not only affects product quality but may also lead to safety accidents. Secondly, their structural stability is poor. Traditional trays are often assembled using simple folding and gluing methods, resulting in limited strength at the joints. During frequent loading, unloading, and handling, the corners and joints of the trays are prone to cracking and falling apart, failing to provide continuous and stable support for the parts. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a cardboard load-bearing structure, comprising corrugated cardboard, which is folded into a corrugated carton body. The corrugated carton body includes a rear side page, a left side page, a right side page, and two inner folds. The two ends of the rear side page are connected to the left and right side pages respectively, and the two inner folds are connected to the left and right side pages respectively. The inner folds are folded twice to form a right-angled triangle shape. The short right-angled sides of the two inner folds are on the same horizontal plane and opposite to the rear side page, forming a front side page. The long right-angled side and the oblique side of the inner folds are folded into the interior of the corrugated carton body. The rear side page has a horizontally opening slot, and both inner folds have internal connecting slots. A locking plate is also provided. The locking plate is elongated, with a locking groove in the middle of one end. The locking plate can pass through the opening slot so that the locking groove can be inserted into the internal connecting slots of the two inner folds.

[0005] Furthermore, the total length of the corrugated cardboard is 609mm, the total width of the corrugated cardboard is 85mm, the length of the back side page is 49mm, the length of the left and right side pages is 85mm, and the length of the inner fold is 195mm.

[0006] Furthermore, the length of the locking plate is 170mm, and the width of the widest part of the locking plate is 46mm.

[0007] Furthermore, EPE pearl cotton is pasted on the outer edges of the back side, front side, and two inner folds of the corrugated cardboard box.

[0008] Furthermore, corrugated paper rolls are inserted and filled into the corners of the corrugated cardboard box to enhance its resistance to collapse.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. In terms of load-bearing performance, the unique inward folding shape and locking plate connection method construct a stable three-dimensional load-bearing system. The right-angled triangular structure of the inward folding, together with other components, forms a mutually supportive three-dimensional structure, achieving uniform pressure distribution.

[0011] 2. After the locking plate passes through the opening slot of the rear side page and is inserted into the inner folding slot, the locking slot accurately engages, making the locking plate tightly connected with the inner folding and rear side page, achieving self-locking fixation. When carrying automotive parts, the locking plate can evenly transmit pressure to all parts of the box, further avoiding local stress concentration. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the corrugated cardboard folded into a corrugated carton in this utility model;

[0013] Figure 2 This is a schematic diagram of the locking plate in this utility model;

[0014] Figure 3 This is a schematic diagram of the corrugated cardboard structure when it is not folded in this utility model.

[0015] The reference numerals in the attached drawings are explained as follows: 1. Corrugated cardboard; 101. Back side page; 102. Left side page; 103. Right side page; 104. Inner fold; 2. Locking plate; 201. Locking slot; 3. Inner connection slot; 4. Opening slot. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] A cardboard load-bearing structure, such as Figure 1 and Figure 3 As shown, corrugated cardboard 1 with a total length of 609mm and a total width of 85mm is selected as the base material and folded to form a corrugated cardboard box. The rear side page 101 is 49mm long, with a horizontal opening 4 for the locking plate 2 to pass through. The left side page 102 and right side page 103 are both 85mm long and are connected to both ends of the rear side page 101. Two inner folds 104 are 195mm long and are connected to the left side page 102 and right side page 103 respectively. The inner folds 104 require two folds, forming a right-angled triangle. The shorter right-angled sides of the two inner folds 104 are on the same horizontal plane and located opposite the rear side page 101, together forming the front side page. The longer right-angled sides and the hypotenuse are folded into the interior of the corrugated cardboard box. This unique folding method significantly enhances the structural strength of the corrugated cardboard box.

[0020] like Figure 1 and Figure 3 As shown, in this embodiment, the locking plate 2 is a long strip, 170mm in length and 46mm at its widest point, with a locking groove 201 in the middle of one end. When assembling the corrugated cardboard box, the locking plate 2 is passed through the opening groove 4 of the rear side page 101, so that the locking groove 201 is accurately inserted into the inner slots 3 of the two inner flaps 104, thereby achieving a firm lock on the corrugated cardboard box and greatly improving the overall stability and load-bearing capacity of the box.

[0021] In this embodiment, to enhance the protection of automotive parts, EPE pearl cotton is pasted onto the edges of the rear side page 101, front side page, and two inner folded surfaces of the corrugated cardboard box. EPE pearl cotton possesses excellent cushioning, shock absorption, heat insulation, and moisture-proof properties, effectively reducing the impact of external forces on the parts inside the box. Furthermore, corrugated paper rolls are inserted into the corners of the corrugated cardboard box to enhance the corners' compressive strength, further improving the overall load-bearing capacity and durability of the base.

[0022] The working principle of this utility model is as follows:

[0023] During assembly, the corrugated cardboard 1 is first folded according to a predetermined pattern to gradually form the basic frame of the corrugated cardboard box. The rear side page 101, left side page 102, right side page 103, and inner folding page 104 are folded and connected to construct the basic structure of the box. Please refer to the attached instruction manual for details. Figure 3 The back side page 101 is located in the middle of the corrugated cardboard 1. The left side page 102 and the right side page 103 are located on either side of the back side page 101. The two inner folds 104 are located on the sides of the left side page 102 and the right side page 103, respectively. They are folded along the fold line, and the inner folds 104 are folded twice to form a right-angled triangle shape (refer to the instruction manual). Figure 1 This shape not only enhances the strength of the inner hinge 104 itself, but also improves the overall stability of the box through uniform force distribution. When the short right-angled side of the inner hinge 104 forms the front side page, and the long right-angled side and the oblique side are folded into the box, a three-dimensional structure that supports each other is formed, which can effectively disperse pressure from different directions and lay a solid foundation for load-bearing.

[0024] Next, the locking plate 2 is installed. After the locking plate 2 is passed through the opening slot 4 of the rear side page 101 and inserted into the inner connecting slot 3 of the inner fold 104, the locking slot 201 accurately engages, making the locking plate 2 tightly connected to the inner fold 104 and the rear side page 101, like applying a sturdy "shackle" to the box. When carrying automotive parts, the locking plate 2 can evenly transmit pressure to all parts of the box, avoiding local stress concentration, ensuring that there is no relative displacement between the components under the pressure of heavy objects, greatly improving the overall strength and stability of the box, and maintaining the integrity of the box structure even when transporting heavy automotive parts.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cardboard load-bearing structure, characterized in that: The product includes corrugated cardboard (1), which is folded into a corrugated carton body. The corrugated carton body includes a rear side page (101), a left side page (102), a right side page (103), and two inner folds (104). The two ends of the rear side page (101) are connected to the left side page (102) and the right side page (103) respectively. The two inner folds (104) are connected to the left side page (102) and the right side page (103) respectively. The inner folds (104) are folded twice so that the inner folds (104) are in the shape of a right triangle. The short right-angled sides of the two inner folds (104) are on the same horizontal plane and are located at the same angle. On the opposite side of the rear side page (101), the short right-angled sides of the two inner folds (104) form the front side page, and the long right-angled sides and oblique sides of the inner folds (104) are folded into the interior of the corrugated cardboard box. The rear side page (101) has an opening slot (4) in the horizontal direction, and both inner folds (104) have an inner connection slot (3). A locking plate (2) is also provided. The locking plate (2) is long and narrow. A locking groove (201) is provided in the middle of one end of the locking plate (2). The locking plate (2) can pass through the opening slot (4) so ​​that the locking groove (201) is inserted into the inner connection slot (3) of the two inner folds (104).

2. The cardboard load-bearing structure according to claim 1, characterized in that: The total length of the corrugated cardboard (1) is 609 mm, the total width of the corrugated cardboard (1) is 85 mm, the length of the back side page (101) is 49 mm, the length of the left side page (102) and the right side page (103) is 85 mm, and the length of the inner fold (104) is 195 mm.

3. The cardboard load-bearing structure according to claim 1, characterized in that: The length of the locking plate (2) is 170mm, and the width of the widest part of the locking plate (2) is 46mm.

4. The cardboard load-bearing structure according to claim 1, characterized in that: EPE pearl cotton is pasted on the outer edges of the rear side page (101), front side page, and two inner folded surfaces of the corrugated cardboard box.

5. The cardboard load-bearing structure according to claim 1, characterized in that: The corners of the corrugated cardboard box are filled with corrugated paper rolls to enhance its resistance to collapse.

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