Bearing paper tube

By setting a load-bearing structure of an outer ring, an inner ring and a load-bearing rod in the paper tube, combined with a load-bearing filling layer, the problem of insufficient load-bearing performance of the paper tube is solved and better load-bearing performance is achieved.

CN223372486UActive Publication Date: 2025-09-23FENGTENG PACKAGING TECHNOLOGY (SUZHOU) CO LTD
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Patent Information

Application Number
CN202422956176.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-09-23
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

When facing external forces, the existing paper tubes have relatively general load-bearing performance and lack an effective load-bearing structure.

Method used

By setting up a load-bearing structure, including the coordination of an outer ring, an inner ring and a load-bearing rod, combined with a load-bearing filling layer, the load-bearing capacity of the paper tube is improved.

Benefits of technology

The overall load-bearing performance of the paper tube is enhanced, which prevents easy deformation and improves the local load-bearing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bearing paper tube relates to paper tube technical field, including outer tube and inner tube, the bearing structure is provided between outer tube and inner tube, the bearing structure includes: the bearing subassembly, the bearing subassembly is located between outer tube and inner tube, and the bearing subassembly is used for supporting the paper tube, the bearing subassembly is composed of outer ring, inner ring and bearing bar; the bearing filling layer is arranged between the outer ring and the inner ring, and the bearing filling layer is used for supporting the paper tube; the clamping assemblies are arranged between the outer ring and the bearing rod and between the inner ring and the bearing rod, and the clamping assemblies are used for connecting the outer ring and the bearing rod or connecting the inner ring and the bearing rod. Through the arrangement of the bearing structure, the outer ring, the inner ring and the bearing rod are matched conveniently to bear external force, so that the bearing capacity of the whole paper tube is improved, and meanwhile, the bearing filling layer is matched, so that the bearing capacity of the paper tube is further improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of paper tubes, in particular to a load-bearing paper tube. Background Art

[0002] As the name suggests, paper tubes are tubular objects made of paper products. With the improvement of people's living standards, paper tubes are becoming more and more common in people's lives, such as paper tubes used to roll up convenience bags in supermarkets, paper tubes used to roll up plastic wrap, paper tubes used to roll up calligraphy and paintings, and paper tubes for other purposes.

[0003] Currently, most common paper tubes are made of single-layer or multi-layer paper products. When facing external forces, they generally rely solely on the compressive resistance of the paper tube material itself and do not have other load-bearing structures. The overall load-bearing performance is relatively general. For this reason, we propose a load-bearing paper tube. Utility Model Content

[0004] The purpose of this utility model is to provide a load-bearing paper tube. By setting a load-bearing structure, it is convenient to utilize the cooperation of the outer ring, the inner ring and the load-bearing rod to withstand external forces, thereby improving the load-bearing capacity of the entire paper tube, and at the same time cooperating with the load-bearing filling layer to further improve the load-bearing capacity of the paper tube.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a load-bearing paper tube, comprising an outer tube and an inner tube, wherein a load-bearing structure is provided between the outer tube and the inner tube, and the load-bearing structure comprises:

[0006] A load-bearing component is located between the outer tube and the inner tube and is used to support the paper tube. The load-bearing component is composed of an outer ring, an inner ring, and a load-bearing rod;

[0007] A load-bearing filling layer is provided between the outer ring and the inner ring, and the load-bearing filling layer is used to support the paper tube;

[0008] A clamping assembly is provided between the outer ring and the load-bearing rod and between the inner ring and the load-bearing rod, and the clamping assembly is used to connect the outer ring and the load-bearing rod or to connect the inner ring and the load-bearing rod.

[0009] Preferably, the number of the outer rings is set to two, and the two outer rings are respectively located at the two ends of the outer tube, the inner ring is located between the two outer rings, the number of the load-bearing rods between the outer rings and the corresponding inner rings is set to four, and the four load-bearing rods are distributed in a circular array with the center of the outer tube as the center of the array.

[0010] Preferably, the number of the load-bearing filling layers is set to two, and each load-bearing filling layer is located on one side of the corresponding outer ring. The load-bearing filling layer includes a first connecting layer connected to the inner wall of the outer tube, a load-bearing layer connected to the inner wall of the first connecting layer, and a second connecting layer connected to the inner wall of the load-bearing layer, and the second connecting layer is connected to the outer surface of the inner tube.

[0011] Preferably, four load-bearing layers are connected between each of the first connecting layers and the second connecting layers, and each of the load-bearing rods passes through a gap between two adjacent load-bearing layers.

[0012] Preferably, the clamping assembly includes a mounting groove opened on the outer surface of the outer ring or the outer surface of the inner ring, an annular clamping groove opened inside the mounting groove and an annular clamping block fixedly connected to the end of the load-bearing rod, and the annular clamping block is clamped with the inside of the corresponding annular clamping groove.

[0013] Preferably, the load-bearing layer is made of corrugated board, and the load-bearing components are made of stainless steel or plastic.

[0014] The technical effects and advantages of this utility model are:

[0015] By bonding the load-bearing filling layer to the outer surface of the inner tube, and then using a clamping assembly to connect the outer ring, inner ring and load-bearing rod, and then bonding the outer tube to the outside of the load-bearing filling layer, and both the outer tube and the inner tube are fitted with the load-bearing assembly, when the paper tube is subjected to external force, the outer ring, inner ring and load-bearing rod can be used to cooperate to withstand the external force, thereby improving the load-bearing performance of the entire paper tube, and at the same time cooperate with the load-bearing filling layer to withstand external force, thereby further improving the local load-bearing performance of the paper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 This is one of the schematic diagrams of the internal structure of the utility model.

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0019] Figure 4 This is the second schematic diagram of the internal structure of the utility model.

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the locally enlarged structure at point B in the middle.

[0021] Figure 6 This is a schematic structural diagram of the utility model.

[0022] In the figure: 1. Outer tube; 2. Inner tube; 3. Load-bearing filling layer; 301. First connecting layer; 302. Load-bearing layer; 303. Second connecting layer; 4. Load-bearing assembly; 401. Outer ring; 402. Inner ring; 403. Load-bearing rod; 5. Clamping assembly; 501. Mounting groove; 502. Annular clamping groove; 503. Annular clamping block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides Figure 1-6 The load-bearing paper tube shown includes an outer tube 1 and an inner tube 2, a load-bearing structure is provided between the outer tube 1 and the inner tube 2, and the load-bearing structure includes: a load-bearing component 4, the load-bearing component 4 is located between the outer tube 1 and the inner tube 2, and the load-bearing component 4 is used to support the paper tube, and the load-bearing component 4 is composed of an outer ring 401, an inner ring 402 and a load-bearing rod 403; a load-bearing filling layer 3, a load-bearing filling layer 3 is provided between the outer ring 401 and the inner ring 402, and the load-bearing filling layer 3 is used to support the paper tube; a clamping component 5, a clamping component 5 is provided between the outer ring 401 and the load-bearing rod 403 and between the inner ring 402 and the load-bearing rod 403, and the clamping component 5 is used to Connect the outer ring 401 and the load-bearing rod 403 or connect the inner ring 402 and the load-bearing rod 403; by bonding the load-bearing filling layer 3 to the outer surface of the inner tube 2, and then using the clamping component 5 to connect the outer ring 401, the inner ring 402 and the load-bearing rod 403, and then bonding the outer tube 1 to the outside of the load-bearing filling layer 3, and both the outer tube 1 and the inner tube 2 are fitted with the load-bearing component 4. When the paper tube is subjected to external force, the outer ring 401, the inner ring 402 and the load-bearing rod 403 can be used to cooperate to withstand the external force, thereby improving the load-bearing performance of the entire paper tube, and at the same time cooperate with the load-bearing filling layer 3 to withstand external force, thereby further improving the local load-bearing performance of the paper tube.

[0025] It should be further explained that the number of outer rings 401 is set to two, and the two outer rings 401 are respectively located at the two ends of the outer tube 1, and the inner ring 402 is located between the two outer rings 401. The number of load-bearing rods 403 between the outer rings 401 and the corresponding inner rings 402 is set to four, and the four load-bearing rods 403 are distributed in a circular array with the center of the outer tube 1 as the array center; the entire paper tube is supported by the four load-bearing rods 403. When external force acts on the paper tube, the load-bearing rods 403 can be used to bear the weight. At the same time, the cooperation of the outer ring 401 and the inner ring 402 can further enhance the structural strength of the load-bearing component 4, and can effectively prevent the load-bearing component 4 from being easily deformed, thereby improving the load-bearing performance of the entire paper tube.

[0026] Furthermore, the number of load-bearing filling layers 3 is set to two, and each load-bearing filling layer 3 is located on one side of the corresponding outer ring 401. The load-bearing filling layer 3 includes a first connecting layer 301 connected to the inner wall of the outer tube 1, a load-bearing layer 302 connected to the inner wall of the first connecting layer 301, and a second connecting layer 303 connected to the inner wall of the load-bearing layer 302, and the second connecting layer 303 is connected to the outer surface of the inner tube 2; by setting the load-bearing layer 302, the external force acting between adjacent load-bearing rods 403 can be borne, thereby further improving the load-bearing capacity of the paper tube. At the same time, the first connecting layer 301 and the second connecting layer 303 are specifically made of paper products and play a connecting role.

[0027] Furthermore, four load-bearing layers 302 are connected between each first connecting layer 301 and the second connecting layer 303, and each load-bearing rod 403 passes through the gap between the corresponding two adjacent load-bearing layers 302; this facilitates the load-bearing rod 403 to pass through the adjacent load-bearing layers 302, thereby facilitating the load-bearing rod 403 and the load-bearing layer 302 to cooperate with each other, thereby bearing external forces.

[0028] Furthermore, the clamping assembly 5 includes a mounting groove 501 provided on the outer surface of the outer ring 401 or the outer surface of the inner ring 402, an annular clamping groove 502 provided inside the mounting groove 501, and an annular clamping block 503 fixedly connected to the end of the load-bearing rod 403, and the annular clamping block 503 is clamped with the corresponding annular clamping groove 502; by inserting the load-bearing rod 403 into the mounting groove 501 until the annular clamping block 503 made of rubber is clamped with the annular clamping groove 502, the outer ring 401 is connected to the load-bearing rod 403 or the inner ring 402 is connected to the load-bearing rod 403.

[0029] Furthermore, the load-bearing layer 302 is specifically made of corrugated board, and the load-bearing component 4 is made of stainless steel or plastic; the load-bearing layer 302 made of corrugated board utilizes the load-bearing performance of the cold plate itself, thereby improving the load-bearing performance of the paper tube, and the load-bearing component 4 utilizes the high strength performance of stainless steel or high-strength plastic itself, and will not be easily deformed, thereby making the paper tube have better load-bearing performance.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A load-bearing paper tube, comprising an outer tube (1) and an inner tube (2), characterized in that: A load-bearing structure is provided between the outer tube (1) and the inner tube (2), and the load-bearing structure comprises: A load-bearing component (4), the load-bearing component (4) is located between the outer tube (1) and the inner tube (2), and the load-bearing component (4) is used to support the paper tube, and the load-bearing component (4) is composed of an outer ring (401), an inner ring (402) and a load-bearing rod (403); A load-bearing filling layer (3), wherein a load-bearing filling layer (3) is provided between the outer ring (401) and the inner ring (402), and the load-bearing filling layer (3) is used to support the paper tube; A clamping assembly (5) is provided between the outer ring (401) and the load-bearing rod (403) and between the inner ring (402) and the load-bearing rod (403), and the clamping assembly (5) is used to connect the outer ring (401) and the load-bearing rod (403) or to connect the inner ring (402) and the load-bearing rod (403).

2. A load-bearing paper tube according to claim 1, characterized in that: The number of the outer rings (401) is set to two, and the two outer rings (401) are respectively located at the two ends of the outer tube (1), the inner ring (402) is located between the two outer rings (401), and the number of the load-bearing rods (403) between the outer rings (401) and the corresponding inner rings (402) is set to four, and the four load-bearing rods (403) are distributed in a circular array with the center of the outer tube (1) as the array center.

3. A load-bearing paper tube according to claim 2, characterized in that: The number of the load-bearing filling layers (3) is set to two, and each load-bearing filling layer (3) is located on one side of the corresponding outer ring (401), and the load-bearing filling layer (3) comprises a first connecting layer (301) connected to the inner wall surface of the outer tube (1), a load-bearing layer (302) connected to the inner wall surface of the first connecting layer (301), and a second connecting layer (303) connected to the inner wall surface of the load-bearing layer (302), and the second connecting layer (303) is connected to the outer surface of the inner tube (2).

4. A load-bearing paper tube according to claim 3, characterized in that: Four load-bearing layers (302) are connected between each of the first connecting layers (301) and the second connecting layer (303), and each of the load-bearing rods (403) passes through the gap between two adjacent load-bearing layers (302).

5. The load-bearing paper tube according to claim 3, characterized in that: The clamping assembly (5) comprises a mounting groove (501) provided on the outer surface of the outer ring (401) or the outer surface of the inner ring (402), an annular clamping groove (502) provided inside the mounting groove (501), and an annular clamping block (503) fixedly connected to the end of the load-bearing rod (403), and the annular clamping block (503) is clamped with the inside of the corresponding annular clamping groove (502).

6. A load-bearing paper tube according to claim 5, characterized in that: The load-bearing layer (302) is specifically made of corrugated board, and the load-bearing component (4) is made of stainless steel or plastic.