Multi-support frame corrugated paper carton
By designing a multi-support corrugated cardboard box, and utilizing the interlocking structure of right-angled isosceles triangular reinforcing strips and staggered interlocking blocks, the problem of insufficient support strength of the corrugated cardboard box is solved, achieving higher support stability and structural stability, while reducing material costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽新隆泰包装股份有限公司
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-04
AI Technical Summary
The existing corrugated cardboard boxes have a relatively simple support structure and limited support strength. They are easily deformed and damaged when loaded with heavy objects or subjected to external pressure, and cannot effectively protect the contents.
The structure adopts a multi-support frame structure, including longitudinal plates, transverse plates, and reinforcing bars. The cross-section of the reinforcing bars is a right-angled isosceles triangle. Through the cooperation of plug-in blocks and plug-in slots, the reinforcing bars can be moved and connected to the internal moving bars. The interlocking blocks of the transverse and longitudinal plates improve the connection stability. The hollow groove design reduces weight and material costs.
It improves the support strength and stability of the cardboard box, prevents deformation and damage, ensures structural stability during handling and transportation, and reduces material costs.
Smart Images

Figure CN224589577U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cardboard box technology, and in particular relates to multi-support corrugated cardboard boxes. Background Technology
[0002] Corrugated cardboard boxes are packaging containers made primarily of corrugated cardboard. The core of a corrugated cardboard box is the corrugated cardboard itself, and its structure is composed of three or more layers of composite materials. Due to its advantages such as being lightweight, inexpensive, easy to process, and recyclable, it is widely used in the packaging and transportation of goods.
[0003] Existing corrugated cardboard boxes have some shortcomings in use. The support structure of ordinary corrugated cardboard boxes is relatively simple and the support strength is limited. When loaded with heavy items or subjected to external pressure, they are prone to deformation or even damage, and cannot protect the contents well. Utility Model Content
[0004] This utility model addresses the problem that corrugated cardboard boxes in the prior art have limited supporting strength and are prone to deformation or even damage when subjected to external pressure, and proposes the following technical solution:
[0005] A multi-support corrugated cardboard box includes: a box body and a support assembly. The support assembly includes two longitudinal pieces and two transverse pieces. A reinforcing strip is provided between the longitudinal pieces and the transverse pieces. Several interlocking blocks are provided on one side of the reinforcing strip. A corresponding interlocking groove is opened on the surface of the transverse piece. A movable strip is movably inserted inside the reinforcing strip. Several interlocking blocks are provided on one side of the movable strip. A corresponding interlocking groove is opened on the surface of the longitudinal pieces.
[0006] As a preferred embodiment of the above technical solution, the cross-section of the reinforcing strip is a right-angled isosceles triangle, and the two sides of the right angle of the reinforcing strip are respectively attached to the longitudinal piece and the transverse piece.
[0007] As a preferred embodiment of the above technical solution, one of the transverse pieces is provided with a plurality of snap-fit blocks 1 at both ends, and two adjacent longitudinal pieces are provided with a plurality of snap-fit blocks 2 at their ends, wherein the snap-fit blocks 1 and snap-fit blocks 2 are staggered.
[0008] As a preferred embodiment of the above technical solution, both the longitudinal and transverse sheets are provided with hollowed-out grooves, and the two ends of the hollowed-out grooves are semi-circular.
[0009] The beneficial effects of this utility model are as follows:
[0010] 1. The cross-section of the reinforcing strip is a right-angled isosceles triangle, which can effectively support the connection angle of the longitudinal and transverse pieces. One side of the reinforcing strip is inserted into the insertion slot of the transverse piece through several insertion blocks. The moving strip is pushed to move inside the reinforcing strip so that the insertion blocks are engaged with the corresponding insertion slots, increasing the connection with the longitudinal and transverse pieces, thereby further improving the support strength of the support component and preventing the contents of the carton from being damaged due to external pressure.
[0011] 2. The interlocking blocks at both ends of the transverse sheet and the interlocking blocks at the ends of the longitudinal sheet are staggered, which can enhance the connection stability between the transverse sheet and the longitudinal sheet, prevent loosening during handling and transportation, and ensure the overall structural stability of the carton. Attached Figure Description
[0012] Figure 1 The diagram shown is a schematic representation of the overall structure of the embodiment;
[0013] Figure 2 The diagram shown is a front view of the supporting components in the embodiment;
[0014] Figure 3 The diagram shown illustrates the installation location of the movable strip in the embodiment.
[0015] In the diagram: 10, housing; 20, longitudinal piece; 30, reinforcing strip; 31, plug-in block one; 32, plug-in slot one; 33, moving strip; 34, plug-in block two; 35, plug-in slot two; 40, hollowed-out groove; 51, snap-fit block one; 52, snap-fit block two; 60, transverse piece. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings.
[0017] Figures 1-3 A multi-support corrugated cardboard box includes: a box body 10 and a support assembly. The support assembly includes two longitudinal sections 20 and two transverse sections 60. A reinforcing strip 30 is provided between the longitudinal sections 20 and the transverse sections 60. Several interlocking blocks 31 are provided on one side of the reinforcing strip 30. Corresponding interlocking grooves 32 are formed on the surface of the transverse sections 60. A movable strip 33 is movably inserted into the reinforcing strip 30. Several interlocking blocks 34 are provided on one side of the movable strip 33.
[0018] The surface of the longitudinal piece 20 is provided with a corresponding insertion groove 35.
[0019] The cross-section of the reinforcing strip 30 is a right-angled isosceles triangle, and the two sides of the right angle of the reinforcing strip 30 are respectively attached to the longitudinal piece 20 and the transverse piece 60.
[0020] The reinforcing strip 30 has a right-angled isosceles triangle cross section, which can effectively support the connection angle position of the longitudinal piece 20 and the transverse piece 60. One side of the reinforcing strip 30 is inserted into the insertion slot 32 of the transverse piece 60 through several insertion blocks 31. The moving strip 33 is pushed to move inside the reinforcing strip 30 so that the insertion blocks 34 are engaged with the corresponding insertion slots 35, which increases the connection with the longitudinal piece 20 and the transverse piece 60, thereby further improving the support strength of the support component and preventing the contents of the carton from being damaged due to external compression.
[0021] Figures 2-3 In the middle, one of the transverse pieces 60 is provided with several snap-fit blocks 51 at both ends, and two adjacent longitudinal pieces 20 are provided with several snap-fit blocks 52 at their ends. The snap-fit blocks 51 and snap-fit blocks 52 are staggered.
[0022] The interlocking blocks 51 at both ends of the transverse sheet 60 and the interlocking blocks 52 at the ends of the longitudinal sheet 20 are staggered, which can enhance the connection stability between the transverse sheet 60 and the longitudinal sheet 20, prevent loosening during handling and transportation, and ensure the overall stability of the carton structure.
[0023] Figures 1-3 In the middle, both the longitudinal piece 20 and the transverse piece 60 have hollowed-out grooves 40 on their surfaces, and the two ends of the hollowed-out grooves 40 are semi-circular.
[0024] The hollowed-out grooves on the surfaces of the longitudinal piece 20 and the transverse piece 60, with semi-circular ends, reduce the weight of the longitudinal piece 20 and the transverse piece 60 while avoiding stress concentration, ensuring structural strength, and reducing material costs.
[0025] Working principle: After sealing the bottom of the box 10, take the horizontal piece 60 with the snap-fit block 1 51 and put it into the box 10. Then, insert the two vertical pieces 20 into the two ends of the horizontal piece 60 through the snap-fit block 2 52. Since the snap-fit block 1 51 and the snap-fit block 2 52 are staggered, the snap-fit block 1 51 and the snap-fit block 2 52 are in an interlocking state to connect the vertical piece 20 and the horizontal piece 60. Then, vertically insert another horizontal piece 60 to form a rectangular frame structure.
[0026] Take a reinforcing strip 30 and align the side without the first insertion block 31 with the surface of the longitudinal piece 20. Push the reinforcing strip 30 to move it so that the first insertion block 31 is inserted into the first insertion slot 32. Push the moving strip 33 to move it so that the second insertion block 34 is inserted into the second insertion slot 35. The reinforcing strip 30, the moving strip 33, the longitudinal piece 20 and the transverse piece 60 together form a "triangular stable structure". Then, items can be loaded to seal the top of the box 10.
[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A multi- support frame corrugated paper carton, characterized by, include: The housing (10) and the support assembly include two longitudinal pieces (20) and two transverse pieces (60). A reinforcing strip (30) is provided between the longitudinal pieces (20) and the transverse pieces (60). A plurality of plug-in blocks (31) are provided on one side of the reinforcing strip (30). A corresponding plug-in groove (32) is opened on the surface of the transverse piece (60). A movable strip (33) is movably inserted inside the reinforcing strip (30). A plurality of plug-in blocks (34) are provided on one side of the movable strip (33). A corresponding plug-in groove (35) is opened on the surface of the longitudinal piece (20).
2. The multi-support corragated paper carton of claim 1 wherein, The cross section of the reinforcing strip (30) is a right-angled isosceles triangle, and the two sides of the right angle of the reinforcing strip (30) are respectively attached to the longitudinal piece (20) and the transverse piece (60).
3. The multi-support corragated paper carton of claim 1 wherein, One of the transverse pieces (60) has several snap-fit blocks (51) at both ends, and two adjacent longitudinal pieces (20) have several snap-fit blocks (52) at their ends. The snap-fit blocks (51) and snap-fit blocks (52) are staggered.
4. The multi-corrugated paperboard carton of claim 1, wherein, Both the longitudinal piece (20) and the transverse piece (60) have hollowed-out grooves (40) on their surfaces, and the two ends of the hollowed-out grooves (40) are semi-circular.