Pressure-resistant high-strength paper tube

Abstract

The pressure-resistant high-strength paper tube comprises a paper tube body, the paper tube body is sequentially provided with an outer paper layer, a pressure-resistant paper layer and an inner paper layer from outside to inside, the outer surface of the pressure-resistant paper layer is provided with a plurality of annular grooves which are evenly distributed at equal angles in the axial direction, and supporting rings are installed in the annular grooves; a pressure-resistant mechanism is arranged on the inner surface of the inner paper layer; the two ends of the paper tube body are respectively provided with an inner flange, and the inner flanges are fixedly connected with the inner surface of the paper tube body through glue. The annular groove and the internal supporting ring are arranged on the outer surface of the pressure-resistant paper layer, so that the pressure-resistant capability of the paper tube in the circumferential direction is enhanced, and the paper tube is prevented from being pressed and deformed; a pressure-resistant mechanism is arranged on the inner surface of the inner paper layer, so that the pressure resistance of the interior of the paper tube is further improved; the inner flanges at the two ends of the paper tube body are fixed through glue, the structural stability of the ends of the paper tube is enhanced, and the ends are prevented from being scattered or damaged.

Description

Technical Field

[0001] This utility model relates to the field of paper tube technology, specifically to a pressure-resistant, high-strength paper tube. Background Technology

[0002] Paper tubes are widely used in the storage and transportation of various products in many fields such as packaging and industrial production. However, traditional paper tubes have a relatively simple structure, mostly single-layer or simple double-layer structures, and their pressure resistance is limited. When subjected to greater pressure, especially during stacked storage or transportation, paper tubes are prone to deformation, denting, or even breakage, resulting in damage to the items placed inside and seriously affecting product quality and safety. Furthermore, the end structure of traditional paper tubes is also relatively weak, and the ends are prone to spreading out during handling and loading / unloading, further reducing the reliability of the paper tube.

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

[0004] This utility model addresses the shortcomings of the existing technology by providing a high-strength, pressure-resistant paper tube.

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

[0006] A pressure-resistant high-strength paper tube includes a paper tube body, wherein the paper tube body is provided with an outer paper layer, a pressure-resistant paper layer and an inner paper layer from the outside to the inside. The outer surface of the pressure-resistant paper layer is provided with a plurality of annular grooves evenly distributed at equal angles along the axial direction, and a support ring is installed in the annular grooves. The inner surface of the inner paper layer is provided with a pressure-resistant mechanism. Both ends of the paper tube body are respectively provided with inner flanges, and the inner flanges are fixedly connected to the inner surface of the paper tube body by adhesive.

[0007] According to the above technical solution, as a further preferred technical solution, the pressure-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.

[0008] According to the above technical solution, as a further preferred technical solution, the cross-section of the reinforcing rib is an isosceles trapezoid.

[0009] According to the above technical solution, as a further preferred technical solution, the outer paper layer is coated paper.

[0010] According to the above technical solution, as a further preferred technical solution, the pressure-resistant paper layer is corrugated paper.

[0011] According to the above technical solution, as a further preferred technical solution, the inner paper layer is kraft paper.

[0012] According to the above technical solution, as a further preferred technical solution, the support ring is made of high-strength plastic material or metal alloy material.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0014] This utility model provides a high-strength, pressure-resistant paper tube. Through a multi-layered structure consisting of an outer paper layer, a pressure-resistant paper layer, and an inner paper layer, the paper tube body acquires basic strength and pressure resistance. An annular groove on the outer surface of the pressure-resistant paper layer and an internal support ring enhance the paper tube's circumferential compressive strength, preventing deformation under pressure. A pressure-resistant mechanism on the inner surface of the inner paper layer further improves the internal compressive strength of the paper tube. Furthermore, the inner flanges at both ends of the paper tube body are fixed with glue, enhancing the structural stability of the ends and preventing them from unraveling or being damaged. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the present invention. Detailed Implementation

[0017] 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.

[0018] A pressure-resistant high-strength paper tube includes a paper tube body 1. The paper tube body 1 is provided with an outer paper layer 2, a pressure-resistant paper layer 3, and an inner paper layer 4 from the outside to the inside. The outer surface of the pressure-resistant paper layer 3 is provided with a plurality of annular grooves 5 evenly distributed at equal angles along the axial direction. A support ring 6 is installed in the annular grooves 5. The inner surface of the inner paper layer 4 is provided with a pressure-resistant mechanism. The two ends of the paper tube body 1 are respectively provided with inner flanges 7, and the inner flanges 7 are fixedly connected to the inner surface of the paper tube body 1 by glue.

[0019] This invention provides the paper tube body 1 with basic strength and pressure resistance by setting a multi-layer structure of outer paper layer 2, pressure-resistant paper layer 3 and inner paper layer 4. The annular groove 5 and the internal support ring 6 on the outer surface of the pressure-resistant paper layer 3 enhance the paper tube's circumferential pressure resistance and prevent the paper tube from deforming under pressure. The pressure-resistant mechanism on the inner surface of the inner paper layer 4 further improves the internal pressure resistance of the paper tube. In addition, the inner flanges 7 at both ends of the paper tube body 1 are fixed with glue, which enhances the structural stability of the paper tube ends and prevents the ends from spreading or being damaged.

[0020] Furthermore, in another embodiment, the pressure-resistant mechanism includes a plurality of reinforcing ribs 8 that are evenly distributed at equal angles and extend along the axial direction of the paper tube body 1.

[0021] By setting multiple reinforcing ribs 5, the compressive strength of the paper tube in the axial direction is enhanced, making the paper tube less prone to deformation or damage when subjected to axial pressure, effectively improving the compressive strength and structural stability of the paper tube.

[0022] Furthermore, in another embodiment, the cross-section of the reinforcing rib 8 is an isosceles trapezoid.

[0023] By incorporating reinforcing ribs 8 in the shape of an isosceles trapezoid, the structure can more effectively disperse pressure and avoid stress concentration when subjected to stress.

[0024] Furthermore, in another embodiment, the outer paper layer 2 is coated paper.

[0025] By setting an outer paper layer 2 made of coated paper, the paper tube has good surface smoothness and certain waterproof and wear-resistant properties, thus improving the appearance quality of the paper tube.

[0026] Furthermore, in another embodiment, the pressure-resistant paper layer 3 is corrugated paper.

[0027] By setting a pressure-resistant paper layer 3 made of corrugated paper, it has good buffering and pressure resistance properties, can effectively absorb and disperse external pressure, and greatly improve the overall pressure resistance of the paper tube.

[0028] Furthermore, in another embodiment, the inner paper layer 4 is kraft paper.

[0029] By setting an inner paper layer 4 made of kraft paper, which has high strength and toughness, the strength of the paper tube can be further enhanced.

[0030] Furthermore, in another embodiment, the support ring 6 is made of high-strength plastic or metal alloy.

[0031] The support ring 6, made of high-strength plastic or metal alloy, possesses high strength and rigidity. It can withstand greater pressure and load, improving the compressive strength and stability of the paper tube and extending its service life.

[0032] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the pressure-resistant high-strength paper tube of this utility model, and can produce the positive effects described in this utility model.

[0033] 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.

[0034] 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.

[0035] 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 pressure-resistant, high-strength paper tube, characterized in that: The paper tube body (1) includes an outer paper layer (2), a pressure-resistant paper layer (3) and an inner paper layer (4) arranged sequentially from the outside to the inside. The outer surface of the pressure-resistant paper layer (3) is provided with a plurality of annular grooves (5) evenly distributed at equal angles along the axial direction. A support ring (6) is installed in the annular groove (5). The inner surface of the inner paper layer (4) is provided with a pressure-resistant mechanism. The two ends of the paper tube body (1) are respectively provided with inner flanges (7), and the inner flanges (7) are fixedly connected to the inner surface of the paper tube body (1) by glue.

2. The high-strength, pressure-resistant paper tube according to claim 1, characterized in that: The pressure-resistant mechanism includes multiple reinforcing ribs (8) that are evenly distributed at equal angles and extend along the axial direction of the paper tube body (1).

3. The high-strength, pressure-resistant paper tube according to claim 2, characterized in that: The cross-section of the reinforcing rib (8) is an isosceles trapezoid.

4. The high-strength, pressure-resistant paper tube according to claim 1, characterized in that: The outer paper layer (2) is coated paper.

5. A pressure-resistant high-strength paper tube according to claim 1, characterized in that: The pressure-resistant paper layer (3) is corrugated paper.

6. The high-strength, pressure-resistant paper tube according to claim 1, characterized in that: The inner paper layer (4) is kraft paper.

7. The high-strength, pressure-resistant paper tube according to claim 1, characterized in that: The support ring (6) is made of high-strength plastic or metal alloy.

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