Bearing paper pallet
By using a multi-layer corrugated and integrated overlay design, combined with positioning bumps and anti-slip strips, the problem of insufficient load-bearing capacity and structural stability of paper pallets is solved, achieving high load-bearing capacity and environmental adaptability, and preventing delamination, cracking and wear.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional paperboards have insufficient load-bearing capacity, poor structural stability, are prone to moisture and deformation, have uneven longitudinal and transverse compressive strength, loose connections between the legs and the panel, insufficient surface anti-slip treatment, and lack of chip removal design, resulting in delamination, cracking, and wear.
It adopts a multi-layer corrugated structure and an integrated covering layer design, combined with matrix-distributed positioning protrusions and anti-slip protrusions. The support legs are designed as hollow rings to increase connection strength and anti-slip properties, and the chip removal groove automatically removes debris.
It improves load-bearing uniformity and structural stability, prevents delamination and wear, extends service life, and enhances compressive strength and environmental adaptability.
Smart Images
Figure CN224063188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper pallet technology, and in particular to a load-bearing paper pallet. Background Technology
[0002] Traditional paper pallets mostly employ honeycomb structures or single corrugated layer designs. While these offer environmental advantages, they suffer from insufficient load-bearing capacity, poor structural stability, and susceptibility to moisture-induced deformation. Current technologies use a single corrugated cardboard stacking method, resulting in uneven longitudinal and transverse compressive strength, leading to delamination and cracking under long-term loads. The lack of reinforcement at the connection between the legs and the panel makes them prone to loosening and detachment during handling. Furthermore, insufficient surface anti-slip treatment allows goods to slide easily when stacked, and the absence of chip removal design allows debris accumulation to accelerate material wear. To address these shortcomings, there is an urgent need for a new paper pallet structure that combines high load-bearing capacity, structural stability, and environmental adaptability. Utility Model Content
[0003] Therefore, in view of the above problems, this utility model provides a load-bearing paperboard that combines high load-bearing capacity, structural stability and environmental adaptability.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A load-bearing paper pallet includes a paper pallet body, which includes a panel, several legs, several right-angle corner protectors, a covering layer, and several positioning protrusions. The longitudinal direction is defined as extending along the length of the panel, and the transverse direction is defined as extending along the width of the panel. The positioning protrusions are distributed in a matrix and adhered to the lower surface of the panel. The upper end of each leg is embedded in the positioning protrusion. The covering layer covers the outer surfaces of the panel and the legs. The covering layer includes a first plate covering the longitudinal sides of the upper surface of the panel, a second plate covering the side of the panel, a third plate covering the outer sides of the legs located on the longitudinal sides, and a fourth plate covering the lower surface of the legs along the longitudinal direction. The first plate, the second plate, the third plate, and the fourth plate are an integral structure. Each right-angle corner protector covers the third plate and the side of the leg adjacent to the third plate. The panel has a plurality of anti-slip protrusions distributed in the transverse direction between two first plates, and a chip removal groove is formed between two adjacent protective protrusions.
[0006] Furthermore, the panel includes a first corrugated layer, a second corrugated layer, a third corrugated layer, a fourth corrugated layer, a first cardboard layer, a second cardboard layer, a third cardboard layer, and a mesh layer. The first corrugated layer is laminated to the upper surface of the first cardboard layer, the second cardboard layer is laminated to the upper surface of the first corrugated layer, the second corrugated layer is laminated to the upper surface of the second cardboard layer, the mesh layer is laminated to the upper surface of the second corrugated layer, the third cardboard layer is laminated to the upper surface of the mesh layer, and the third corrugated layer is laminated to the upper surface of the third cardboard layer. The third corrugated layer has a wavy structure, giving it a third peak and a third trough. The fourth corrugated layer is laminated to the upper surface of the third corrugated layer, also having a wavy structure, giving it a fourth peak and a fourth trough. The lower end of the fourth trough is laminated to the upper surface of the third trough. The fourth peak is distributed above the third peak, and the amplitude of the fourth peak is greater than that of the third peak.
[0007] Furthermore, the first corrugated layer has a wave structure, which gives it a first peak and a first trough. The second corrugated layer has a wave structure, which gives it a second peak and a second trough. The first peak and the second peak are distributed alternately, and the amplitude of the first peak is greater than that of the second peak.
[0008] Furthermore, the longitudinal length of the first corrugated layer and the second corrugated layer is smaller than the longitudinal length of the third cardboard layer. The upper surface of the third cardboard layer and located on both sides of the longitudinal direction of the first corrugated layer are composite with a support layer, and the first board and the third corrugated layer cover the upper surface of the support layer.
[0009] Furthermore, the support leg includes a hollow ring-shaped support portion formed by bending a piece of cardboard and gluing the ends together, and an inner covering layer surrounding and covering the inner surface of the support portion.
[0010] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: This load-bearing cardboard board, through the matrix-distributed positioning protrusions on the lower surface of the panel, ensures the verticality of the legs after they are embedded, avoids local stress concentration caused by offset, improves the overall load-bearing uniformity, and the integrated covering layer enhances the connection strength between the panel and the legs, prevents delamination and cracking, and blocks the intrusion of external moisture, extending the service life. At the same time, the transverse anti-slip texture increases the friction of goods, and the chip removal groove automatically removes debris, reducing the risk of surface wear. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;
[0012] Figure 2 This is a front view structural diagram of an embodiment of the present utility model;
[0013] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0014] Figure 4 yes Figure 3 A magnified view of a section at point B. Detailed Implementation
[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0016] The embodiment of this utility model is as follows:
[0017] refer to Figures 1 to 4 As shown, a load-bearing paper pallet includes a paper pallet body 100. The paper pallet body 100 includes a panel 1, nine legs 2, twelve right-angle corner brackets 3, a covering layer 4, and nine positioning protrusions 5. The longitudinal direction is defined as extending along the length direction of the panel 1, and the transverse direction is defined as extending along the width direction of the panel 1. The positioning protrusions 5 are arranged in a matrix and adhered to the lower surface of the panel 1. The upper end of each leg 2 is embedded in the positioning protrusion 5. The covering layer 4 covers the outer surfaces of the panel 1 and the legs 2. The covering layer 4 includes a first plate 4 covering the longitudinal sides of the upper surface of the panel 1. 1. A second plate 42 covering the side of the panel 1, a third plate 43 covering the outer side of the legs 2 located on both longitudinal sides, and a fourth plate 44 covering the lower surface of the legs 2 along the longitudinal direction. The first plate 41, the second plate 42, the third plate 43 and the fourth plate 44 are an integral structure. Each right-angle corner 3 covers the third plate 43 and the side of the legs 2 adjacent to the third plate 43. The panel 1 has six anti-slip ridges 6 distributed in the transverse direction between the two first plates 41. A chip removal groove 7 is formed between two adjacent anti-slip ridges 6.
[0018] This load-bearing cardboard pallet uses matrix-distributed positioning protrusions 5 on the lower surface of panel 1 to ensure the verticality of the legs 2 after insertion, avoiding local stress concentration caused by misalignment and improving the overall load-bearing uniformity. The integrated covering layer 4 enhances the connection strength between panel 1 and legs 2, prevents delamination and cracking, and blocks external moisture intrusion, extending service life. At the same time, the transverse anti-slip texture increases the friction of goods, and the chip removal groove 7 automatically removes debris, reducing the risk of surface wear.
[0019] Specifically, the panel 1 includes a first corrugated layer 11, a second corrugated layer 12, a third corrugated layer 13, a fourth corrugated layer 14, a first cardboard layer 15, a second cardboard layer 16, a third cardboard layer 17, and a mesh layer 18. The first corrugated layer 11 is laminated to the upper surface of the first cardboard layer 15, the second cardboard layer 16 is laminated to the upper surface of the first corrugated layer 11, the second corrugated layer 12 is laminated to the upper surface of the second cardboard layer 16, the mesh layer 18 is laminated to the upper surface of the second corrugated layer 12, the third cardboard layer 17 is laminated to the upper surface of the mesh layer 18, and the third corrugated layer 13 is laminated to the upper surface of the third cardboard layer 17. The third corrugated layer 13 has a wavy structure, giving it a third crest 131 and a third trough 13. 2. The fourth corrugated layer 14 is composited on the upper surface of the third corrugated layer 13. The fourth corrugated layer 14 has a wave structure, which gives it a fourth wave crest 141 and a fourth wave trough 142. The lower end of the fourth wave trough 142 is composited on the upper surface of the third wave trough 132. The fourth wave crest 141 is distributed on the upper side of the third wave crest 131, and the amplitude of the fourth wave crest 141 is greater than that of the third wave crest 131. By composited with the four corrugated layers, the mesh layer 18, and the cardboard layer, and by alternately stacking corrugated layers with different amplitudes, such as the fourth wave crest 141 having an amplitude greater than that of the third wave crest 131, a multi-level buffer is formed, which disperses longitudinal and transverse loads, increases compressive strength by more than 30%, enhances interlayer adhesion, inhibits corrugated layer deformation, and improves tear resistance.
[0020] Furthermore, the first corrugated layer 11 has a wave structure, which gives it a first wave crest 111 and a first wave trough 112. The second corrugated layer 12 has a wave structure, which gives it a second wave crest 121 and a second wave trough 122. The first wave crest 111 and the second wave crest 121 are staggered. The amplitude of the first wave crest 111 is greater than that of the second wave crest 121. The staggered corrugated structure offsets the transverse shear force, avoids interlayer misalignment, ensures uniform stress on the panel, and prioritizes the absorption of the main impact energy through the large-amplitude layer, while the small-amplitude layer provides auxiliary support, thus balancing flexibility and rigidity.
[0021] Meanwhile, the longitudinal length of the first corrugated layer 11 and the second corrugated layer 12 is smaller than that of the third cardboard layer 17. The upper surface of the third cardboard layer 17 and the longitudinal sides of the first corrugated layer 11 are composite with a support layer 19. The first board body 41 and the third corrugated layer 13 cover the upper surface of the support layer 19, expanding the support area of the edge of the panel 1, preventing edge collapse due to local pressure, especially suitable for bearing long strips of goods, reducing edge material redundancy, reducing overall weight, and retaining the compressive strength of the core area.
[0022] Furthermore, the support leg 2 includes a hollow ring-shaped support part 21 formed by bending a piece of cardboard and gluing the ends together, and an inner covering layer 22 surrounding and covering the inner surface of the support part 21. The hollow structure reduces weight, and the inner covering layer strengthens the inner wall of the ring-shaped support part 21, preventing the support leg 2 from deforming under pressure, simplifying the processing of the support leg 2, reducing production costs, and ensuring a seamless seal at the connection.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.
Claims
1. A load bearing paperboard, characterized by: The paper card board body comprises a panel, a plurality of feet, a plurality of right-angle corners, a cladding layer and a plurality of positioning protrusions, the longitudinal direction is defined as extending along the length direction of the panel, and the transverse direction is defined as extending along the width direction of the panel, each of the positioning protrusions is adhered to the lower surface of the panel in a matrix distribution, the upper end of each of the feet is embedded on the positioning protrusion, the cladding layer is cladded on the outer side surface of the panel and the feet, the cladding layer comprises a first plate body covering the longitudinal two sides of the upper surface of the panel, a second plate body covering the side surface of the panel, a third plate body covering the outer side surface of the feet located on the longitudinal two sides, and a fourth plate body covering the lower surface of the feet in the longitudinal direction, the first plate body, the second plate body, the third plate body and the fourth plate body are in an integral structure, each of the right-angle corners is cladded on the side surface of the third plate body adjacent to the third plate body, a plurality of anti-skid protrusions are distributed along the transverse direction on the panel and between the two first plate bodies, and a chip removal groove is formed between the two adjacent anti-skid protrusions.
2. The load bearing paper cardboard of claim 1, wherein: The panel comprises a first corrugated layer, a second corrugated layer, a third corrugated layer, a fourth corrugated layer, a first paper board layer, a second paper board layer, a third paper board layer and a mesh cloth layer, the first corrugated layer is compounded on the upper surface of the first paper board layer, the second paper board layer is compounded on the upper surface of the first corrugated layer, the second corrugated layer is compounded on the upper surface of the second paper board layer, the mesh cloth layer is compounded on the upper surface of the second corrugated layer, the third paper board layer is compounded on the upper surface of the mesh cloth layer, the third corrugated layer is compounded on the upper surface of the third paper board layer, the third corrugated layer is in a wave structure, so that the third corrugated layer has third peaks and third troughs, the fourth corrugated layer is compounded on the upper surface of the third corrugated layer, the fourth corrugated layer is in a wave structure, so that the fourth corrugated layer has fourth peaks and fourth troughs, the lower end of the fourth trough is compounded on the upper surface of the third trough, the fourth peaks are distributed on the upper side of the third peaks, and the amplitude of the fourth peaks is greater than the amplitude of the third peaks.
3. The load bearing paperboard of claim 2, wherein: The first corrugated layer is in a wave structure, so that the first corrugated layer has first peaks and first troughs, the second corrugated layer is in a wave structure, so that the second corrugated layer has second peaks and second troughs, the first peaks and the second peaks are staggered, and the amplitude of the first peaks is greater than the amplitude of the second peaks.
4. The load bearing paperboard of claim 3, wherein: The longitudinal length dimension of the first corrugated layer and the second corrugated layer is less than the longitudinal length dimension of the third paper board layer, a support layer is compounded on the upper surface of the third paper board layer and located on the longitudinal two sides of the first corrugated layer, and the first plate body and the third corrugated layer are covered on the upper surface of the support layer.
5. The load bearing paperboard of any one of Claims 1 to 4, wherein: The feet comprise a hollow ring-shaped support part formed by bending and bonding a paper board, and an inner cladding layer surrounding and cladded on the inner surface of the support part.