Anti-compression and anti-deformation corrugated board

Abstract

The utility model relates to the technical field of corrugated boards, and discloses a compression-resistant anti-deformation corrugated board which comprises a board body, and the board body comprises an upper paper board, a lower paper board and a core paper interlayer located between the upper paper board and the lower paper board. The core paper interlayer comprises a plurality of first core paper strips perpendicular to the upper paper board and the lower paper board and a plurality of wave-shaped second core paper strips located between the adjacent first core paper strips, a plurality of through holes penetrating through the upper paper board, the lower paper board and the core paper interlayer are formed in the board body, and reinforcing plastic sleeves are embedded in the through holes; a limiting ring with the outer diameter larger than the inner diameter of the through hole is arranged at one end of the reinforcing plastic sleeve, and a supporting transverse shaft is arranged in the center of the reinforcing plastic sleeve. The upper paperboard and the lower paperboard are supported through the first core paper strip and the second core paper strip, compared with a single-layer wave-shaped core paper interlayer in the prior art, the structural strength of the core paper interlayer can be improved, and therefore the compression resistance of the board body can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to corrugated paperboard technical field, especially relate to a compression-resistant deformation-resistant corrugated paperboard. BACKGROUND

[0002] Corrugated paperboard is a multi-layer adhesive body, which is composed of at least one wave-shaped core paper interlayer and one layer of paperboard, has high mechanical strength, and can withstand impact and falling during transportation. The actual performance of corrugated paperboard depends on three factors: the properties of core paper and paperboard and the structure of the carton itself.

[0003] At present, a corrugated paperboard with moisture-proof function is disclosed in Chinese patent No. CN218140442U, published on December 27, 2022, which comprises an upper layer of paperboard, a wave-shaped core paper interlayer, and a lower layer of paperboard. A plurality of protruding paperboards are arranged on the end face of the upper layer of paperboard away from the wave-shaped core paper interlayer. The two ends of the protruding paperboard are provided with extension parts. A waterproof film layer is adhered to the surface of the upper layer of paperboard and the plurality of protruding paperboards. A water absorption and moisture-proof assembly is arranged in the cavity formed between the adjacent two protruding paperboards.

[0004] The corrugated paperboard with moisture-proof function comprises an upper layer of paperboard, a wave-shaped core paper interlayer, and a lower layer of paperboard, which form the entire board body. The corrugated paperboard is used for packaging and supporting, and often needs to be used for carrying large commodities. The weight of large commodities is often large. At this time, ordinary corrugated paperboard is prone to deformation due to excessive load, which is not conducive to stable support of large commodities. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a compression-resistant deformation-resistant corrugated paperboard, which can improve the compression resistance of the corrugated paperboard.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a compression-resistant deformation-resistant corrugated paperboard comprises a board body, the board body comprises an upper paperboard, a lower paperboard, and a core paper interlayer between the upper paperboard and the lower paperboard, the core paper interlayer comprises a plurality of first core paper strips perpendicular to the upper paperboard and the lower paperboard, and a plurality of second core paper strips located between adjacent first core paper strips and in a wave shape, a plurality of through holes penetrating the upper paperboard, the lower paperboard, and the core paper interlayer are formed in the board body, a reinforcing plastic sleeve is embedded in the through hole, a limiting ring with an outer diameter larger than the inner diameter of the through hole is arranged at one end of the reinforcing plastic sleeve, and a support horizontal shaft is arranged at the center of the reinforcing plastic sleeve.

[0007] The utility model is further provided with an inner thread surface formed on the inner wall of the reinforcing plastic sleeve, and an outer thread sleeve is wrapped outside the support horizontal shaft and screwed into the inner thread surface.

[0008] The present invention is further configured such that: a plurality of the through holes are evenly spaced and distributed on the plate.

[0009] The present invention is further configured as follows: a plurality of compression-resistant convex strips extending in a vertical direction are provided on the peripheral side of the reinforced plastic sleeve.

[0010] The utility model is further configured as follows: a plurality of the anti-compression convex strips are evenly spaced and distributed along the circumference of the reinforced plastic sleeve.

[0011] The present invention is further configured such that: the through hole and the reinforced plastic sleeve are interference fit.

[0012] In summary, the present invention has the following beneficial effects:

[0013] 1. The core paper sandwich includes multiple first core paper strips perpendicular to the upper and lower paperboards, and multiple wavy second core paper strips located between adjacent first core paper strips. The first and second core paper strips support the upper and lower paperboards. Compared with the single-layer wavy core paper sandwich in the prior art, the structural strength of the core paper sandwich is improved, thereby improving the compressive resistance of the board.

[0014] At the same time, by utilizing the multiple through holes opened on the board body, a lot of corrugated cardboard raw materials can be saved at the locations of the multiple through holes, thereby facilitating the saving of corrugated cardboard raw materials and enabling the same volume of corrugated cardboard raw materials to produce more corrugated cardboards; wherein, by utilizing the reinforced plastic sleeve embedded in the through hole and the supporting transverse axis provided at the center of the reinforced plastic sleeve, the reinforced plastic sleeve and the supporting transverse axis can play a compressive role at the location of the through hole, thereby further facilitating the improvement of the compressive resistance of the board body; wherein, by utilizing the limiting ring provided at one end of the reinforced plastic sleeve, whose outer diameter is larger than the inner diameter of the through hole, the limiting ring can play a limiting role, thereby facilitating the stable insertion of the reinforced plastic sleeve in the through hole;

[0015] 2. The support horizontal shaft is threadedly connected to the internal thread surface on the inner wall of the reinforced plastic sleeve using an external threaded sleeve. At this time, the position of the support horizontal shaft can be adjusted up and down along the central axis of the reinforced plastic sleeve. When the two panels need to be combined to support large products, the reinforced plastic sleeves on the two panels can be connected up and down. Then, the support horizontal shaft is rotated so that the external threaded sleeve is threadedly connected between the upper and lower reinforced plastic sleeves. Finally, the upper and lower reinforced plastic sleeves can be stably connected through the external threaded sleeve, which is conducive to the stable combination of the two panels.

[0016] 3. Use multiple through holes to evenly distribute on the board, so that the reinforced plastic sleeve can be evenly distributed on the board, which will ultimately help to evenly resist pressure at all positions of the board;

[0017] 4. By using multiple vertically extending compression ribs on the circumference of the reinforced plastic sleeve, the compression ribs can increase the compressive strength of the reinforced plastic sleeve, thereby further improving the compressive resistance of the plate.

[0018] 5. Use multiple compression-resistant ridges to be evenly spaced along the circumference of the reinforced plastic sleeve, which can help to strengthen the uniform compression resistance of each position on the circumference of the plastic sleeve;

[0019] 6. Utilize the interference fit between the through hole and the reinforced plastic sleeve, which is conducive to the stable insertion of the reinforced plastic sleeve in the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural plan view of the utility model;

[0022] Figure 2 This is a partial structural cross-sectional view of the plate body of the utility model at the through-hole position;

[0023] Figure 3 This is a partial structural plan view of the core paper sandwich of the utility model;

[0024] Figure 4 This is a schematic diagram of the connection between the reinforced plastic sleeve and the supporting horizontal shaft in the utility model;

[0025] Figure 5 This is a structural cross-sectional view of the utility model when two plate bodies are merged up and down and two reinforced plastic sleeves are butted up and down.

[0026] In the figure, 1. Plate body; 11. Upper paperboard; 12. Lower paperboard; 13. Core paper interlayer; 131. First core paper strip; 132. Second core paper strip; 2. Through hole; 3. Reinforced plastic sleeve; 31. Limiting ring; 32. Internal threaded surface; 33. Anti-pressure convex strip; 4. Supporting horizontal axis; 41. External threaded sleeve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments are described clearly and completely below. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] A kind of compression-resistant and deformation-resistant corrugated cardboard, Figure 1 、 Figure 2 、 Figure 3 The compression-resistant and deformation-resistant corrugated cardboard includes a board body 1, wherein the board body 1 includes an upper board 11, a lower board 12 and a core paper sandwich 13 bonded between the upper board 11 and the lower board 12, and the core paper sandwich 13 includes a plurality of first core paper strips 131 perpendicular to the upper board 11 and the lower board 12, and a plurality of wavy second core paper strips 132 bonded between adjacent first core paper strips 131. At the same time, a plurality of through holes 2 penetrating the upper board 11, the lower board 12 and the core paper sandwich 13 are opened on the board body 1, and the plurality of through holes 2 are evenly spaced on the board body 1.

[0029] Reference Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 A reinforced plastic sleeve 3 is embedded in the through hole 2, and the through hole 2 and the reinforced plastic sleeve 3 are interference fit, wherein a limiting ring 31 with an outer diameter larger than the inner diameter of the through hole 2 is integrally provided at one end of the reinforced plastic sleeve 3, and a plurality of pressure-resistant ridges 33 extending in the vertical direction are also integrally provided on the circumference of the reinforced plastic sleeve 3, and the plurality of pressure-resistant ridges 33 are evenly spaced along the circumference of the reinforced plastic sleeve 3; at the same time, a supporting horizontal axis 4 is provided at the center of the reinforced plastic sleeve 3, and an internal threaded surface 32 is provided on the inner wall of the reinforced plastic sleeve 3, wherein an external threaded sleeve 41 threadedly connected to the internal threaded surface 32 is bonded and fixed to the outside of the supporting horizontal axis 4.

[0030] Principle: The core paper sandwich 13 includes multiple first core paper strips 131 perpendicular to the upper paper board 11 and the lower paper board 12, and multiple wavy second core paper strips 132 located between adjacent first core paper strips 131. The first core paper strips 131 and the second core paper strips 132 support the upper paper board 11 and the lower paper board 12. Compared with the single-layer wavy core paper sandwich 13 in the prior art, the structural strength of the core paper sandwich 13 is improved, thereby improving the compressive resistance of the board body 1.

[0031] At the same time, by utilizing the multiple through holes 2 opened on the plate body 1, a lot of corrugated cardboard raw materials can be saved at the locations of the multiple through holes 2, which is beneficial to saving corrugated cardboard raw materials and allowing the same volume of corrugated cardboard raw materials to produce more corrugated cardboards; wherein, by utilizing the reinforced plastic sleeve 3 embedded in the through hole 2 and the supporting horizontal axis 4 provided at the center of the reinforced plastic sleeve 3, the reinforced plastic sleeve 3 and the supporting horizontal axis 4 can play a compressive role at the location of the through hole 2, thereby further helping to improve the compressive resistance of the plate body 1; wherein, by utilizing the limiting ring 31 with an outer diameter greater than the inner diameter of the through hole 2 provided at one end of the reinforced plastic sleeve 3, the limiting ring 31 can play a limiting role, which is beneficial to the stable insertion of the reinforced plastic sleeve 3 in the through hole 2.

Claims

1. A compression-resistant and deformation-resistant corrugated paperboard, comprising a board body (1), wherein the board body (1) comprises an upper paperboard (11), a lower paperboard (12), and a core paper sandwich (13) located between the upper paperboard (11) and the lower paperboard (12), characterized in that: The core paper sandwich (13) comprises a plurality of first core paper strips (131) perpendicular to the upper paper board (11) and the lower paper board (12), and a plurality of second core paper strips (132) located between adjacent first core paper strips (131) and in a wavy shape. The plate body (1) is provided with a plurality of through holes (2) penetrating the upper paper board (11), the lower paper board (12) and the core paper sandwich (13). A reinforcing plastic sleeve (3) is embedded in the through hole (2). A limiting ring (31) having an outer diameter greater than an inner diameter of the through hole (2) is provided at one end of the reinforcing plastic sleeve (3). A supporting transverse axis (4) is provided at the center of the reinforcing plastic sleeve (3).

2. The compression-resistant and deformation-resistant corrugated cardboard according to claim 1, characterized in that: An internal threaded surface (32) is provided on the inner wall of the reinforced plastic sleeve (3), and an external threaded sleeve (41) is wrapped around the outer side of the supporting transverse shaft (4) and is threadedly connected to the internal threaded surface (32).

3. The compression-resistant and deformation-resistant corrugated paperboard according to claim 1, characterized in that: The plurality of through holes (2) are evenly spaced and distributed on the plate body (1).

4. The compression-resistant and deformation-resistant corrugated paperboard according to claim 1, characterized in that: The peripheral side of the reinforced plastic sleeve (3) is provided with a plurality of compression-resistant convex strips (33) extending in the vertical direction.

5. The compression-resistant and deformation-resistant corrugated paperboard according to claim 4, characterized in that: A plurality of the anti-compression convex strips (33) are evenly spaced and distributed along the circumference of the reinforced plastic sleeve (3).

6. The compression-resistant and deformation-resistant corrugated paperboard according to claim 1, characterized in that: The through hole (2) and the reinforced plastic sleeve (3) are interference-fitted.

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