Paper tray for transporting skylight glass

By setting limiting and supporting components inside the paper pallet, and utilizing a combination of corrugated cardboard and pearl board, the problems of structural deformation and stress concentration during the transportation of skylight glass are solved, thus achieving safe transportation of glass and improving the stability of the pallet.

CN224117780UActive Publication Date: 2026-04-14CHONGQING BENEL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

During the transportation of sunroof glass, structural deformation and stress concentration are prone to occur, leading to hidden cracks or even glass breakage, increasing the transportation loss rate and pallet replacement frequency, and raising transportation costs and management difficulty.

Method used

Design a paper pallet with a limiting component and a support component. The limiting component is slidably connected to the cover through a limiting groove. The support component uses a second double-layer corrugated cardboard that is interference-fitted with the support bracket to form a multi-point support network. Combined with the sliding connection of the pearl board and the cushioning of the protective pad, it provides uniform support and rigid constraint.

Benefits of technology

It effectively avoids single-point stress concentration, improves the overall load-bearing stability of paper pallets, protects the glass surface from damage, reduces transportation loss rate and pallet replacement frequency, and improves transportation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paper trays, in particular to a paper tray for skylight glass transportation, which comprises a paper tray, a handle is fixedly mounted on the side surface of the paper tray, and two limiting components are arranged in the paper tray and are symmetrically arranged about the transverse central symmetry axis of the paper tray. A supporting assembly is arranged in the paper tray, a skylight is located in the paper tray, according to the paper tray for skylight glass transportation, a second double-layer corrugated board in the supporting assembly is in interference fit with a bearing support to form a multi-point supporting network, and the glass gravity is evenly dispersed to the inner wall of the paper tray by means of the compression resistance characteristic of a corrugated structure; structural deformation caused by single-point stress concentration is effectively avoided, the overall bearing stability of packaging is improved, the position of the pearl plate can be adjusted in a self-adaptive mode through the sliding grooves formed in the inner wall of the bottom of the paper tray, horizontal rigid constraint is formed in cooperation with the limiting blocks, the deformation buffering space is reserved, and transverse deviation of the bearing support can be prevented.
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Description

Technical Field

[0001] This utility model relates to the field of paper pallet technology, specifically a paper pallet for transporting sunroof glass. Background Technology

[0002] Paper pallets for transporting sunroof glass are paper-based support and protective equipment specifically designed for the storage, handling, and transportation of sunroof glass. They are a combination of transport packaging and logistics unit technology. Using paper-based composite materials as their core, they achieve safe support, shock absorption, and standardized logistics adaptation for fragile glass products through structural optimization. They are a key auxiliary tool connecting production, warehousing, and distribution in the glass industry chain.

[0003] During transportation, the paper pallet structure is prone to deformation at stress concentration points due to vibrations and bumps from vehicle movement, as well as the continuous effect of the glass's own weight. This manifests as bending of local support beams, panel dents, and even cracking at joints, significantly reducing the overall stability of the pallet. As structural deformation intensifies, the sunroof glass loses its uniform support and protection, further worsening its stress state. Additional stress is easily generated at the glass edges or in areas corresponding to the center of gravity, which may lead to hidden cracks during continuous transportation bumps. In severe cases, this can directly cause the glass to break, increasing not only the loss rate of sunroof glass during transportation but also the need for frequent replacement of damaged pallets, increasing transportation costs and management difficulties. This negatively impacts the large-scale and efficient logistics transportation of sunroof glass. Therefore, we propose a paper pallet for sunroof glass transportation. Utility Model Content

[0004] The purpose of this utility model is to provide a paper pallet for transporting sunroof glass, in order to solve the problems mentioned in the background art, such as the potential for hidden cracks to appear during continuous transportation bumps, which in severe cases directly lead to glass breakage. This not only increases the transportation loss rate of sunroof glass, but also requires frequent replacement due to pallet structure damage, increasing transportation costs and management difficulties, and adversely affecting the large-scale and efficient logistics transportation of sunroof glass.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a paper pallet for transporting sunroof glass, comprising a paper pallet, a handle fixedly installed on the side of the paper pallet, a limiting component provided inside the paper pallet, two limiting components symmetrically arranged about the transverse central axis of the paper pallet, the two limiting components respectively limiting the arc surfaces at both ends of the sunroof glass, and a support component provided inside the paper pallet, the support component supporting the arc surface in the middle of the sunroof glass.

[0006] The support component includes a second double-layer corrugated cardboard, which is fixedly installed on the inner wall of the paper tray.

[0007] The second double-layer corrugated cardboard is fixedly installed with multiple support brackets through multiple grooves on its top, and the paper pallet is slidably connected to the pearl board through the slide groove on its bottom inner wall, with a limit block fixedly installed on the top of the pearl board.

[0008] Among them, the outside of the support bracket is in contact with the sunroof glass, the side of the limiting block is in contact with the support bracket, the top of the pearl board is in contact with the bottom of the support bracket, and there are two second double-layer corrugated cardboards symmetrically arranged about the longitudinal central axis of the paper tray.

[0009] The limiting component includes a first double-layer corrugated cardboard, which is fixedly installed on the inner wall of the paper tray, and a limiting groove is provided inside the first double-layer corrugated cardboard.

[0010] The limiting groove is slidably connected to the cover that matches the paper tray. A fixing cardboard is fixedly installed on one side of the first double-layer corrugated cardboard. A protective pad is fixedly installed on the inner wall of the fixing cardboard. The inside of the protective pad is slidably connected to the skylight.

[0011] This utility model has at least the following beneficial effects:

[0012] The interference fit between the second double-layer corrugated cardboard and the support bracket in the support assembly forms a multi-point support network. Utilizing the compressive strength of the corrugated structure, the weight of the glass is evenly distributed to the inner wall of the paper pallet, effectively avoiding structural deformation caused by stress concentration at a single point and improving the overall load-bearing stability of the packaging. The grooves set on the inner wall of the bottom of the paper pallet allow the pearl board to adaptively adjust its position, forming a horizontal rigid constraint in conjunction with the limiting block. This not only preserves buffer deformation space but also prevents lateral displacement of the support bracket, while providing upward support force and enhancing the overall structure's resistance to displacement. The protective pads fixing the inner wall of the cardboard in the limiting assembly absorb the lateral movement energy of the glass through material deformation, while using the surface friction coefficient to provide lateral constraint force, directly preventing direct collision between the glass and the paper pallet and effectively protecting the glass surface from damage. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model;

[0015] Figure 3 This is an exploded three-dimensional structural diagram of the support component of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the limiting component of this utility model.

[0017] In the diagram: 1. Paper tray; 2. Limiting component; 21. First double-layer corrugated cardboard; 22. Fixing cardboard; 23. Protective pad; 24. Limiting groove; 3. Supporting component; 31. Second double-layer corrugated cardboard; 32. Support bracket; 33. Pearl board; 34. Limiting block; 4. Handle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a paper pallet for transporting skylight glass, including a paper pallet 1, a handle 4 fixedly installed on the side of the paper pallet 1, a limiting component 2 provided inside the paper pallet 1, two limiting components 2 symmetrically arranged about the transverse central axis of the paper pallet 1, a support component 3 provided inside the paper pallet 1, and the skylight located inside the paper pallet 1.

[0020] The support assembly 3 includes a second double-layer corrugated cardboard 31, which is fixedly installed on the inner wall of the paper pallet 1. Multiple support brackets 32 are fixedly installed on the second double-layer corrugated cardboard 31 via multiple grooves on its top. A pearl board 33 is slidably connected to the paper pallet 1 via a groove on its bottom inner wall. A limiting block 34 is fixedly installed on the top of the pearl board 33. The outer surface of the support bracket 32 ​​contacts the skylight glass, the side of the limiting block 34 contacts the support bracket 32, and the top of the pearl board 33 contacts the bottom surface of the support bracket 32. The second double-layer corrugated cardboard 31 is symmetrically arranged with two points about the longitudinal center axis of the paper pallet 1. The second double-layer corrugated cardboard 31 and the support bracket 32 ​​are interference-fitted to form multi-point support. With the help of the corrugated compressive strength, the glass load is evenly distributed to the inner wall of the paper pallet 1, avoiding single-point stress concentration deformation. The EPE board 33 is slidably connected to the bottom of the paper pallet 1 through the slide groove. Its EPE closed-cell structure absorbs vertical impact and can adaptively adjust its position. The limiting block 34 provides both upward support reaction force and restricts the lateral displacement of the support bracket 32, taking into account both buffering and rigid positioning.

[0021] The limiting component 2 includes a first double-layer corrugated cardboard 21, which is fixedly installed on the inner wall of the paper tray 1. The first double-layer corrugated cardboard 21 has a limiting groove 24 inside, which is slidably connected to the cover of the paper tray 1. A fixing cardboard 22 is fixedly installed on one side of the first double-layer corrugated cardboard 21, and a protective pad 23 is fixedly installed on the inner wall of the fixing cardboard 22. The protective pad 23 is slidably connected to the skylight. The first double-layer corrugated cardboard 21 and the second double-layer corrugated cardboard 31 together form a crisscross rigid frame. The limiting groove 24 of the first double-layer corrugated cardboard 21 is slidably connected to the cover to form a third-dimensional constraint. When the cover is closed, it forms a top constraint surface with the first double-layer corrugated cardboard 21 to prevent the glass from moving vertically. The protective pad 23 on the inner wall of the fixing cardboard 22 is made of high-foaming material, which absorbs the lateral movement energy of the glass through deformation and provides lateral constraint force using the coefficient of friction to avoid direct collision between the glass and the paper tray 1.

[0022] The second double-layer corrugated cardboard 31 has a double-layer composite structure. Its top groove and the support bracket 32 ​​are interference-fitted to form a multi-point support network. When the weight of the glass acts on the support bracket 32, the force is transmitted to the second double-layer corrugated cardboard 31 through the groove. With the help of the compressive strength of the corrugated structure, the load is evenly distributed to the inner wall of the paper tray 1. This design can make the weight distribution of the glass more balanced and effectively avoid structural deformation caused by single-point stress concentration. The EPE board 33 is slidably connected to the bottom of the paper tray 1 through the groove. Its independent closed-cell structure can absorb the stress. During transportation, when the skylight glass is displaced due to vertical impact, the pearl plate 33 can adaptively adjust its position through the sliding groove. The limiting block 34 at the top of the pearl plate 33 contacts the side of the support bracket 32, forming a rigid constraint in the horizontal direction. This mechanism allows for a certain amount of buffer deformation and prevents the support bracket 32 ​​from shifting laterally. The limiting block 34 not only provides upward support reaction force through the fit between the top surface of the pearl plate 33 and the bottom surface of the support bracket 32, but also restricts the lateral displacement of the support bracket 32 ​​through side contact, thereby achieving rigid positioning while ensuring buffer performance.

[0023] The first double-layer corrugated cardboard 21 and the second double-layer corrugated cardboard 31 together form a rigid frame with intersecting directions: the former has an internal limiting groove 24 that slides with the lid, and the latter enhances longitudinal bending stiffness through a longitudinally symmetrical layout. The protective pad 23 that fixes the inner wall of the cardboard 22 is made of high-foaming EVA or PORON material. Its surface microstructure forms multi-point frictional contact with the skylight glass. When the glass shifts laterally due to inertia, the protective pad 23 absorbs kinetic energy through material deformation and provides lateral constraint force using its own coefficient of friction to prevent the glass from directly colliding with the paper tray 1. The sliding connection between the limiting groove 24 and the lid forms a third-dimensional constraint. When the lid is closed, its edge is embedded in the limiting groove 24, which together with the first double-layer corrugated cardboard 21 forms a top constraint surface to prevent the glass from moving vertically.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper pallet for transporting sunroof glass, comprising a paper pallet, characterized in that: A handle is fixedly installed on the side of the paper tray. A limiting component is provided inside the paper tray. Two limiting components are symmetrically arranged about the transverse central axis of the paper tray. The two limiting components respectively restrict the arc surfaces at both ends of the sunroof glass. A support component is provided inside the paper tray. The support component supports the arc surface in the middle of the sunroof glass.

2. The paper pallet for transporting skylight glass according to claim 1, characterized in that: The support assembly includes a second double-layer corrugated cardboard, which is fixedly installed on the inner wall of the paper tray.

3. The paper pallet for transporting skylight glass according to claim 2, characterized in that: The second double-layer corrugated cardboard is fixedly mounted with multiple support brackets through multiple grooves provided on its top. The paper tray is slidably connected to a pearl board through a sliding groove provided on its bottom inner wall. A limit block is fixedly installed on the top of the pearl board.

4. The paper pallet for transporting skylight glass according to claim 3, characterized in that: The outer surface of the support bracket is in contact with the sunroof glass, the side of the limiting block is in contact with the support bracket, the top of the pearl board is in contact with the bottom surface of the support bracket, and two second double-layer corrugated cardboard are symmetrically arranged about the longitudinal central axis of the paper tray.

5. The paper pallet for transporting skylight glass according to claim 4, characterized in that: The limiting component includes a first double-layer corrugated cardboard, which is fixedly installed on the inner wall of the paper tray, and a limiting groove is provided inside the first double-layer corrugated cardboard.

6. The paper pallet for transporting skylight glass according to claim 5, characterized in that: The limiting groove is slidably connected to the cover that matches the paper tray. A fixing cardboard is fixedly installed on one side of the first double-layer corrugated cardboard. A protective pad is fixedly installed on the inner wall of the fixing cardboard. The inside of the protective pad is slidably connected to the skylight.