Novel polished paper tube structure

By setting a support shaft and a support seat in the inner liner of the paper tube and providing buffer support with built-in springs, the compressive resistance of the paper tube during stacking and transportation is solved, and the compressive resistance and waterproof effect of the paper tube is achieved.

CN223086595UActive Publication Date: 2025-07-11HANGZHOU BAOLIJIE PACKAGING TECH CO LTD
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Patent Information

Application Number
CN202422323049.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-07-11
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

Paper tubes are easily bending when piled up and transported, and their compression resistance is limited.

Method used

It adopts an inner bushing structure, with a support shaft and a support seat inside the inner bushing, and a storage groove and a support strip are provided in the support seat. The support strip provides buffering support through a built-in spring, and the two inner bushings are fixedly connected through the packaging end and the support pad.

Benefits of technology

Improves the compressive resistance of the paper tube, prevents pressure damage, and prevents liquid contamination through the packaging end.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paper tubes, and discloses a novel polishing paper tube structure which comprises an inner lining, a paper tube structure, a supporting shaft, a supporting seat, a containing groove, a limiting groove and a supporting strip, one side of the supporting strip is matched with the interior of the containing groove in a limiting and clamping mode through a limiting piece, and a built-in spring connected with the limiting piece in a supporting mode is arranged in the containing groove. According to the paper tube structure, the paper tube structure is located outside the neck bush to be wound and formed, the multiple sets of supporting bases are installed inside the neck bush through the periphery of the supporting shaft, the supporting strips capable of supporting the inner side of the neck bush are arranged inside the supporting bases through the containing grooves, and when the outer portion of the paper tube structure is pressed, the paper tube structure can be preliminarily supported through the neck bush firstly; when the paper tube structure is pressed and deformed, the multiple sets of supporting strips can provide supporting buffering for the inner side of the lining sleeve through the built-in springs at the same time, the paper tube structure is prevented from being pressed and damaged, and therefore the effects of improving the pressure resistance of the paper tube structure and guaranteeing the use quality of the paper tube structure are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of paper tubes, in particular to a novel polished paper tube structure. Background Art

[0002] A paper tube refers to a tubular object made of paper, which is widely used in the load-bearing packaging of various films and can also be used for protective packaging of items. And paper tubes are all processed by belt inclined spiral winding or die direct drawing covering. When paper tubes are stacked and transported, mutual extrusion will occur between paper tubes, resulting in the paper tubes being easily bent under external force, and the compressive resistance effect is limited. For this reason, we propose a novel polished paper tube structure. Content of the Utility Model

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a novel polished paper tube structure.

[0004] To achieve the above object, the utility model adopts the following technical solution. A novel polished paper tube structure includes two groups of inner liners and a paper tube structure. A support shaft is arranged inside the inner liner. A support seat arranged circumferentially along the central axis of the support shaft is installed on the periphery of the support shaft. A storage groove is opened inside the support seat. A limiting groove penetrating the storage groove is opened on one side of the support seat away from the support shaft. A support bar for pressing the inner side of the inner liner is slidably arranged inside the storage groove through the limiting groove. One side of the support bar is in limit clamping fit with the inside of the storage groove through a limiting part. An internal spring for supporting and connecting with the limiting part is arranged inside the storage groove.

[0005] Preferably, when the inner liner presses the support bar through the top pad, the support bar is in a supporting and buffering state through the internal spring inside the storage groove.

[0006] Preferably, a clamping groove is opened on the inner side of the inner liner. A top pad is installed on one side of the support bar corresponding to the clamping groove. One side of the support bar is in limit clamping fit with the inside of the clamping groove through the top pad.

[0007] Preferably, mounting holes are opened on the edge surface of one group of the inner liners, and mounting parts are installed on the edge surface of the other group of the inner liners. The two groups of inner liners are in mutual docking and limiting fit through the mounting holes and the mounting parts.

[0008] Preferably, sealing ends are arranged at both ends of the inner liner. A connecting end is installed at one end of the sealing end. A support pad is arranged on the periphery of the connecting end. The support pad has a deformation characteristic. The sealing end is in a mutual docking and supporting state with the inner sides of the two groups of inner liners through the support pad on the periphery of the connecting end.

[0009] The present utility model provides a novel polishing paper tube structure, which has the following beneficial effects:

[0010] 1. For the novel polishing paper tube structure, in this article, the paper tube structure is wound and formed outside the inner lining sleeve. Inside the inner lining sleeve, multiple support seats are installed around the support shaft. Inside the support seats, support bars that can support the inner side of the inner lining sleeve are arranged in the storage grooves. When the paper tube structure is externally pressured, the paper tube structure can be initially supported by the inner lining sleeve first. When the inner lining sleeve is pressured and deformed, multiple support bars can simultaneously provide support and buffering to the inner side of the inner lining sleeve through the built-in springs, avoiding damage to the paper tube structure due to pressure, thereby achieving the effect of improving the compressive resistance of the paper tube structure and ensuring the use quality of the paper tube structure.

[0011] 2. For the novel polishing paper tube structure, both ends of the inner lining sleeve are provided with encapsulation ends. When two inner lining sleeves are butt - joint installed, the two encapsulation ends can be first butt - jointed and fitted to the inner side of the inner lining sleeve through the support pads around the connection end. After the two inner lining sleeves are butt - joint limited, the paper tube structure can clamp and fix the two encapsulation ends when it is wound and formed. At the same time, the two encapsulation ends also protect the two ends of the paper tube structure through the support pads around the connection end, avoiding damage caused by liquid pollution, thereby achieving the effect of improving the waterproof effect of the paper tube structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only exemplary. For those of ordinary skill in the art, without creative work, other implementation drawings can also be obtained according to the provided drawings.

[0013] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present utility model.

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

[0015] Figure 2 For the present utility model Figure 1 The enlarged view of A in;

[0016] Figure 3 It is a partial schematic diagram of the support shaft of the present utility model;

[0017] Figure 4 For the present utility model Figure 3 an enlarged view of B in it;

[0018] Figure 5 For the present utility model Figure 1 an enlarged view of C in it.

[0019] Legend description:

[0020] 1. Inner lining sleeve; 2. Paper tube structure; 3. Support shaft; 4. Support seat; 5. Receiving groove; 6. Limiting groove; 7. Support strip; 8. Limiting part; 9. Built-in spring; 10. Top pad; 11. Card slot; 12. Mounting hole; 13. Mounting part; 14. Encapsulation end; 15. Connection end; 16. Support pad. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: A novel polishing paper tube structure, as Figures 1-4 shown, includes two groups of inner lining sleeves 1 and paper tube structures 2. A support shaft 3 is arranged inside the inner lining sleeve 1. A support seat 4 arranged circumferentially along the central axis of the support shaft 3 is installed on the periphery of the support shaft 3. A receiving groove 5 is opened inside the support seat 4. A limiting groove 6 penetrating the receiving groove 5 is opened on one side of the support seat 4 away from the support shaft 3. A support strip 7 for pressing against the inner side of the inner lining sleeve 1 is slidably arranged inside the receiving groove 5 through the limiting groove 6. One side of the support strip 7 is in limiting clamping fit with the inside of the receiving groove 5 through a limiting part 8. A built-in spring 9 for supporting and connecting with the limiting part 8 is arranged inside the receiving groove 5.

[0023] Furthermore, when the inner lining sleeve 1 presses against the support strip 7 through the top pad 10, the support strip 7 is in a supporting and buffering state through the built-in spring 9 inside the receiving groove 5.

[0024] Furthermore, a card slot 11 is opened on the inner side of the inner lining sleeve 1. A top pad 10 is installed on one side of the support strip 7 corresponding to the card slot 11. One side of the support strip 7 is in limiting clamping fit with the inside of the card slot 11 through the top pad 10.

[0025] Furthermore, mounting holes 12 are opened on the edge surface of one group of inner lining sleeves 1, and mounting parts 13 are installed on the edge surface of the other group of inner lining sleeves 1. The two groups of inner lining sleeves 1 are in mutual docking and limiting fit through the mounting holes 12 and the mounting parts 13.

[0026] Embodiment 2: A novel polishing paper tube structure, as Figures 1-5 shown, comprising two groups of inner liners 1 and a paper tube structure 2. A support shaft 3 is arranged inside the inner liner 1. A support seat 4 arranged circumferentially around the central axis of the support shaft 3 is installed on the periphery of the support shaft 3. A storage groove 5 is formed inside the support seat 4. A limiting groove 6 penetrating the storage groove 5 is formed on one side of the support seat 4 away from the support shaft 3. A support bar 7 that presses against the inner side of the inner liner 1 is slidably arranged inside the storage groove 5 through the limiting groove 6. One side of the support bar 7 is in limiting clamping fit with the inside of the storage groove 5 through a limiting member 8. An internal spring 9 that supports and connects with the limiting member 8 is arranged inside the storage groove 5.

[0027] Furthermore, when the inner liner 1 presses against the support bar 7 through the top pad 10, the support bar 7 is in a support buffer state through the internal spring 9 inside the storage groove 5. A clamping groove 11 is formed inside the inner side of the inner liner 1. A top pad 10 is installed on one side of the support bar 7 corresponding to the clamping groove 11. One side of the support bar 7 is in limiting clamping fit with the inside of the clamping groove 11 through the top pad 10. An installation hole 12 is formed on the edge surface of one group of inner liners 1, and an installation member 13 is installed on the edge surface of the other group of inner liners 1. The two groups of inner liners 1 are in mutual docking and limiting fit through the installation hole 12 and the installation member 13.

[0028] Furthermore, both ends of the inner liner 1 are provided with encapsulation ends 14. A connection end 15 is installed at one end of the encapsulation end 14. A support pad 16 is arranged on the periphery of the connection end 15. The support pad 16 has its own deformation characteristics. The encapsulation end 14 is in a mutual docking and supporting state with the inner sides of the two groups of inner liners 1 through the support pad 16 on the periphery of the connection end 15.

[0029] The working principle of the present utility model:

[0030] The paper tube structure 2 is wound and formed outside the inner liner 1. Multiple groups of support seats 4 are installed on the periphery of the support shaft 3 inside the inner liner 1. A support bar 7 that can support the inner side of the inner liner 1 is arranged inside the storage groove 5 of the support seat 4. When the outside of the paper tube structure 2 is pressed, the paper tube structure 2 can be initially supported by the inner liner 1 first. When the inner liner 1 is deformed under pressure, multiple groups of support bars 7 can simultaneously provide support and buffer for the inner side of the inner liner 1 through the internal spring 9, avoiding damage to the paper tube structure 2 due to pressure, thereby improving the compressive resistance of the paper tube structure 2 and ensuring the use quality of the paper tube structure 2. Both ends of the inner liner 1 are provided with encapsulation ends 14. When the two groups of inner liners 1 are docked and installed, the two groups of encapsulation ends 14 can be first docked and fitted with the inner sides of the inner liners 1 through the support pads 16 on the periphery of the connection ends 15. After the two groups of inner liners 1 are docked and limited, the paper tube structure 2 can clamp and fix the two groups of encapsulation ends 14 when being wound and formed. At the same time, the two groups of encapsulation ends 14 also encapsulate and protect the two ends of the paper tube structure 2 through the support pads 16 on the periphery of the connection ends 15, avoiding damage caused by liquid contamination.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A novel polishing paper tube structure, comprising two groups of inner liners (1) and a paper tube structure (2), characterized in that: A support shaft (3) is arranged inside the inner lining sleeve (1). A support seat (4) arranged circumferentially along the central axis of the support shaft (3) is installed on the periphery of the support shaft (3). A storage groove (5) is formed inside the support seat (4). A limiting groove (6) penetrating the storage groove (5) is formed on one side of the support seat (4) away from the support shaft (3). A support strip (7) that presses against the inner side of the inner lining sleeve (1) is slidably arranged inside the storage groove (5) through the limiting groove (6). One side of the support strip (7) is in limit clamping fit with the inside of the storage groove (5) through a limiting member (8). An internal spring (9) that is supported and connected to the limiting member (8) is arranged inside the storage groove (5).

2. A novel polishing paper tube structure according to claim 1, characterized in that: When the inner lining sleeve (1) presses against the support strip (7) through the top pad (10), the support strip (7) is in a support and buffering state through the internal spring (9) inside the storage groove (5).

3. A novel polishing paper tube structure according to claim 2, characterized in that: A clamping groove (11) is formed inside the inner side of the inner lining sleeve (1). A top pad (10) is installed on one side of the support strip (7) corresponding to the clamping groove (11). One side of the support strip (7) is in limit clamping fit with the inside of the clamping groove (11) through the top pad (10).

4. A novel polished paper tube structure according to claim 3, characterized in that: Mounting holes (12) are formed on the edge surface of one group of the inner lining sleeves (1), and mounting parts (13) are installed on the edge surface of the other group of the inner lining sleeves (1). The two groups of the inner lining sleeves (1) are in mutual docking and limiting fit through the mounting holes (12) and the mounting parts (13).

5. A novel polishing paper tube structure according to claim 4, characterized in that: Sealing ends (14) are arranged at both ends of the inner lining sleeve (1). A connecting end (15) is installed at one end of the sealing end (14). A support pad (16) is arranged on the periphery of the connecting end (15). The support pad (16) has a deformation characteristic. The sealing end (14) is in a mutual docking and supporting state with the inner sides of the two groups of inner lining sleeves (1) through the support pad (16) on the periphery of the connecting end (15).