High-compression-resistance paper tube with reinforcing structure

By setting a reinforcing layer and a compression-resistant mechanism, including glass fiber and reinforcing ribs, on the inner wall of the paper tube, the problem of insufficient compression resistance of the paper tube is solved, and high compression resistance and structural stability are achieved.

CN223934339UActive Publication Date: 2026-02-24ZHEJIANG TIANQI PAPER CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520413906.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-08
Publication Date
2026-02-24
Estimated Expiration
2035-03-08

AI Technical Summary

Technical Problem

Traditional paper tubes have poor compressive strength and cannot provide reliable support. They are prone to deformation or damage when faced with greater pressure, affecting the items they carry or package.

Method used

A reinforcing layer is provided on the inner wall of the paper tube body, filled with glass fiber, and an anti-compression mechanism is provided on the inner surface of the reinforcing layer, including multiple reinforcing ribs evenly distributed at equal angles. Annular grooves are provided at both ends of the paper tube to connect with end caps.

Benefits of technology

It significantly enhances the compressive strength and overall strength of paper tubes, improves load-bearing capacity, ensures that they are not easily deformed or damaged under axial pressure, and improves structural stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223934339U_ABST
    Figure CN223934339U_ABST
Patent Text Reader

Abstract

The utility model discloses a high pressure resistance paper tube with a reinforcing structure, which comprises a paper tube body formed by winding a plurality of layers of paper and bonding the paper through an adhesive. A reinforcing layer is arranged on the inner side wall of the paper tube body, and the reinforcing layer is filled with glass fibers; a compression-resistant mechanism is arranged on the inner surface of the reinforcing layer and comprises a plurality of reinforcing ribs which are evenly distributed at equal angles and extend in the axial direction of the paper tube body. The reinforcing layer is arranged on the inner side wall of the paper tube body, and the glass fibers are filled in the reinforcing layer, so that the compression resistance and the overall strength of the paper tube can be remarkably enhanced, and the bearing capacity of the paper tube is improved; meanwhile, the compression-resistant mechanism is arranged and comprises a plurality of reinforcing ribs which are uniformly distributed at equal angles and extend in the axial direction of the paper tube body, so that the compression resistance of the paper tube in the axial direction is enhanced, the paper tube is not prone to deformation or damage when subjected to axial pressure, and the compression resistance and the structural stability of the paper tube are effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of paper tube technology, specifically to a high-compression-resistant paper tube with a reinforced structure. Background Technology

[0002] In modern industrial production and daily life, paper tubes are widely used as a common packaging and support material in many fields such as textiles, papermaking, plastic film, and construction. For example, in the textile industry, paper tubes are used to wind yarn; in plastic film production, paper tubes serve as the core carrier for film winding. As industries continuously raise their requirements for product quality and performance, higher standards are being placed on the compressive strength of paper tubes. Traditional paper tubes are usually made by simply winding and bonding single or multiple layers of paper, resulting in poor compressive strength and an inability to provide reliable support. Under significant pressure, they are prone to deformation or even damage, affecting the items they carry or package.

[0003] Based on the above, this utility model proposes a high-compression-resistant paper tube with a reinforced structure, which can effectively solve the above problems. Utility Model Content

[0004] This invention addresses the shortcomings of the existing technology by providing a high-compression-resistant paper tube with a reinforced structure.

[0005] This utility model is achieved through the following technical solution:

[0006] A high-compression-resistant paper tube with a reinforced structure includes a paper tube body formed by winding multiple layers of paper and bonding them with an adhesive; a reinforcing layer is provided on the inner sidewall of the paper tube body, and the interior of the reinforcing layer is filled with glass fiber; a compression-resistant mechanism is provided on the inner surface of the reinforcing layer, and the compression-resistant mechanism includes a plurality of reinforcing ribs that are evenly distributed at equal angles and extend along the axial direction of the paper tube body.

[0007] According to the above technical solution, as a further preferred technical solution, the glass fibers are uniformly interwoven along the axial and radial directions.

[0008] According to the above technical solution, as a further preferred technical solution, both ends of the paper tube body are provided with inwardly recessed annular grooves, and end caps are installed in the annular grooves; the end caps are provided with inwardly extending protrusions, and a through hole is opened at the center of the protrusions; the top of the protrusions is provided with a flange that cooperates with and connects to the annular grooves.

[0009] According to the above technical solution, as a further preferred technical solution, the end cap and the paper tube body are bonded together with adhesive.

[0010] According to the above technical solution, as a further preferred technical solution, the cross-section of the reinforcing rib is an isosceles trapezoid.

[0011] According to the above technical solution, as a further preferred technical solution, the end cap is made of metal, plastic or high-density fiberboard.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] This utility model provides a high-compression-resistant paper tube with a reinforced structure. By setting a reinforcing layer on the inner wall of the paper tube body and filling the interior of the reinforcing layer with glass fiber, the compressive strength and overall strength of the paper tube can be significantly enhanced, thereby improving the load-bearing capacity of the paper tube. At the same time, a compression-resistant mechanism is set on the inner surface of the reinforcing layer. The compression-resistant mechanism includes multiple reinforcing ribs that are evenly distributed at equal angles and extend along the axial direction of the paper tube body, thereby further enhancing the compression resistance of the paper tube in the axial direction. This makes the paper tube less prone to deformation or damage when subjected to axial pressure, effectively improving the compression resistance and structural stability of the paper tube. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the end structure of the paper tube body of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the paper tube body of this utility model;

[0017] Figure 4 This is a schematic diagram of the end cap structure of this utility model. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0019] A high-compression-resistant paper tube with a reinforced structure includes a paper tube body 1, which is formed by winding multiple layers of paper and bonding them with an adhesive; a reinforcing layer 2 is provided on the inner sidewall of the paper tube body 1, and the interior of the reinforcing layer 2 is filled with glass fiber 3; a compression-resistant mechanism 4 is provided on the inner surface of the reinforcing layer 2, and the compression-resistant mechanism 4 includes a plurality of reinforcing ribs 5 that are evenly distributed at equal angles and extend along the axial direction of the paper tube body 1.

[0020] This invention significantly enhances the compressive strength and overall strength of the paper tube by providing a reinforcing layer 2 on the inner wall of the paper tube body 1, and filling the interior of the reinforcing layer 2 with glass fiber 3, thereby improving the load-bearing capacity of the paper tube. At the same time, a compressive resistance mechanism 4 is provided on the inner surface of the reinforcing layer 2. The compressive resistance mechanism 4 includes multiple reinforcing ribs 5 that are evenly distributed at equal angles and extend along the axial direction of the paper tube body, thereby further enhancing the compressive resistance of the paper tube in the axial direction, making the paper tube less prone to deformation or damage when subjected to axial pressure, and effectively improving the compressive strength and structural stability of the paper tube.

[0021] Furthermore, in another embodiment, the glass fibers 3 are uniformly interwoven along the axial and radial directions.

[0022] By setting glass fibers 3 evenly and interlaced along the axial and radial directions, good support and reinforcement can be provided in both the axial and radial directions of the paper tube, making the compressive strength of the paper tube more balanced in all directions, and further improving the compressive strength and structural stability of the paper tube.

[0023] Furthermore, in another embodiment, the two ends of the paper tube body 1 are provided with inwardly recessed annular grooves 6, and end caps 7 are installed in the annular grooves 6; the end caps 7 are provided with inwardly extending protrusions 8, and a through hole 9 is provided at the center of the protrusions 8; the top of the protrusions 8 is provided with a flange 10 that cooperates with and connects to the annular grooves 6.

[0024] By providing annular grooves 6 at both ends of the paper tube body 1, the annular grooves 6 facilitate connection with the end caps 7. The paper tube body 1's overall strength and rigidity are enhanced to a certain extent, preventing end deformation and denting under pressure. The end caps 7 have inwardly extending protrusions 8, with a through hole 9 at the center. The through hole 9 can be used for threading, installing connectors, etc., increasing the flexibility of the paper tube's use. A flange 10, which connects to the annular grooves 6, is provided at the top of the protrusion 8, making the connection between the end caps 7 and the paper tube body 1 tighter and more stable, further improving the overall stability and sealing of the paper tube structure. Furthermore, in another embodiment, the end caps 7 and the paper tube body 1 are bonded together with adhesive.

[0025] The end cap 7 is bonded to the paper tube body 1 with glue. The glue bonding method is simple and convenient, and can ensure the connection strength between the end cap 7 and the paper tube body 1 to a certain extent, ensuring that the end cap will not easily fall off during use, thereby ensuring the sealing and structural stability of both ends of the paper tube and further enhancing the overall performance of the paper tube.

[0026] Furthermore, in another embodiment, the cross-section of the reinforcing rib 5 is an isosceles trapezoid.

[0027] By incorporating reinforcing ribs 5 in the shape of an isosceles trapezoid, the structure can more effectively disperse pressure and avoid stress concentration when subjected to stress.

[0028] Furthermore, in another embodiment, the end cap 7 is made of metal, plastic, or high-density fiberboard.

[0029] End caps 7, made of metal, plastic, or high-density fiberboard, offer various advantages. Metal end caps provide high strength and hardness, offering good protection and pressure resistance. Plastic end caps are lightweight, corrosion-resistant, and low-cost, making them suitable for applications where weight and cost are critical. High-density fiberboard end caps offer good processing performance and sufficient strength. The appropriate end cap material can be selected based on different usage requirements and application scenarios, improving the applicability and practicality of the paper tube.

[0030] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use a high-compression-resistant paper tube with a reinforced structure, and can achieve the positive effects described in this utility model.

[0031] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0032] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model 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 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.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A high-compression-resistant paper tube with a reinforced structure, characterized in that: The paper tube body (1) is formed by winding multiple layers of paper and bonding them with an adhesive. The inner wall of the paper tube body (1) is provided with a reinforcing layer (2), and the interior of the reinforcing layer (2) is filled with glass fiber (3). The inner surface of the reinforcing layer (2) is provided with a pressure-resistant mechanism (4), and the pressure-resistant mechanism (4) includes a plurality of reinforcing ribs (5) that are evenly distributed at equal angles and extend along the axial direction of the paper tube body (1).

2. The high-compression-resistant paper tube with a reinforced structure according to claim 1, characterized in that: The glass fibers (3) are uniformly interwoven along the axial and radial directions.

3. A high-compression-resistant paper tube with a reinforced structure according to claim 1, characterized in that: The paper tube body (1) has inwardly recessed annular grooves (6) at both ends, and end caps (7) are installed in the annular grooves (6); the end caps (7) have inwardly extending protrusions (8), and a through hole (9) is opened at the center of the protrusions (8); the top of the protrusions (8) has a flange (10) that mates with the annular grooves (6).

4. A high-compression-resistant paper tube with a reinforced structure according to claim 3, characterized in that: The end cap (7) is bonded to the paper tube body (1) with glue.

5. A high-compression-resistant paper tube with a reinforced structure according to claim 1, characterized in that: The cross-section of the reinforcing rib (5) is an isosceles trapezoid.

6. A high-compression-resistant paper tube with a reinforced structure according to claim 3, characterized in that: The end cap (7) is made of metal, plastic or high-density fiberboard.