High-strength seamless paper tube

Abstract

The utility model relates to the technical field of seamless paper tubes, and discloses a high-strength seamless paper tube which comprises neck bushings, a packaging end, an inner-layer paper tube, a supporting sleeve and an outer-layer paper tube, and a dismounting cover is arranged at the upper end of each neck bush. After the inner-layer paper tube is wound and formed, the supporting sleeve is arranged outside the inner-layer paper tube in a matched and sleeved mode, meanwhile, the outer-layer paper tube can be wound and formed on the outer portion of the supporting sleeve, and therefore the inner-layer paper tube and the outer-layer paper tube can be formed in a winding mode on the basis of the inner lining sleeve and the supporting sleeve. The hardness of the inner-layer paper tube and the hardness of the outer-layer paper tube are increased through the material characteristics of the neck bush and the supporting sleeve, the screw hole penetrating through the outer-layer paper tube is formed in the inner side of the neck bush, and after the first bolt is in threaded connection with the interior of the screw hole, the limiting and supporting effect between the neck bush and the supporting sleeve can be increased; therefore, the effect of improving the overall pressure resistance of the paper tube is achieved.

Description

Technical Field

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

[0002] A paper tube refers to a tubular object made of paper, which is widely used for the load-bearing packaging of various films and can also be used for the protective packaging of items. However, the existing paper tubes are formed by winding paper. When heavy objects are placed inside the paper tubes, during stacking and transportation, the paper tubes will be squeezed against each other, resulting in the paper tubes being easily bent under pressure, and the compressive effect is limited. For this reason, we propose a high-strength seamless paper tube. Content of the Utility Model

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

[0004] To achieve the above object, the utility model adopts the following technical scheme: a high-strength seamless paper tube, including a lining sleeve and a packaging end integrally formed with the lining sleeve. An inner layer paper tube is wound around the outside of the lining sleeve. A support sleeve is fittingly sleeved outside the inner layer paper tube. The support sleeve is of an annular structure and the outer periphery of the support sleeve is a curved wall surface. An outer layer paper tube is wound around the outside of the support sleeve. A disassembly and assembly cover is arranged at the upper end of the lining sleeve.

[0005] Preferably, screw holes penetrating the outer layer paper tube are formed inside the lining sleeve, and a first bolt for mutually supporting the lining sleeve and the support sleeve is threadedly connected inside the screw holes.

[0006] Preferably, a round groove is formed at the bottom of the packaging end, a threaded locking hole penetrating the support sleeve is formed inside the round groove, and a second bolt is threadedly connected inside the threaded locking hole.

[0007] Preferably, when the second bolt is threadedly connected with the threaded locking holes inside the packaging end and the support sleeve, the support sleeve and the packaging end are in a limit support state.

[0008] Preferably, a butt joint end is integrally formed at the bottom of the disassembly and assembly cover, threads are formed on both the outer periphery of the butt joint end and the inner side of the lining sleeve, and the disassembly and assembly cover is threadedly connected and matched with the inner side of the lining sleeve through the threads on the outer periphery of the butt joint end.

[0009] The utility model provides a high-strength seamless paper tube, which has the following beneficial effects:

[0010] 1. For this high-strength seamless paper tube, in this text, by setting a group of inner liners, the inner paper tube can be first wound and fixed to the outside of the inner liner. After the inner paper tube is wound and formed, the support sleeve is then fitted over the outside of the inner paper tube. At the same time, the outer paper tube can be wound and formed on the outside of the support sleeve. In this way, the inner paper tube and the outer paper tube can be wound on the basis of the inner liner and the support sleeve. By the material properties of the inner liner and the support sleeve, the hardness of the inner paper tube and the outer paper tube itself is increased. And a threaded hole penetrating the outer paper tube is opened on the inner side of the inner liner. After the first bolt is threadedly connected to the inside of the threaded hole, the limit support effect between the inner liner and the support sleeve can be increased, thereby achieving the effect of improving the overall compressive resistance of the paper tube.

[0011] 2. For this high-strength seamless paper tube, a circular groove is opened at the bottom of the encapsulation end, and a threaded locking hole extending to the inside of the support sleeve is opened on the inner side of the circular groove. At this time, after the second bolt is threadedly connected to the threaded locking holes inside the encapsulation end and the support sleeve, the support sleeve and the encapsulation end can be limited and supported, improving the compressive support stability of the support sleeve, thereby achieving the effect of assisting in improving the hardness of the paper tube.

[0012] 3. For this high-strength seamless paper tube, the disassembly and assembly cover at the other end of the inner liner can be threadedly connected to the inside of the inner liner through the thread on the periphery of the docking end. In this way, the encapsulation ends and the disassembly and assembly covers at both ends of the inner liner can encapsulate and close both ends of the inner paper tube and the outer paper tube. The disassembly is the same. The inner liner can provide waterproof protection for the inside of the paper tube, thereby achieving the effect of preventing the paper tube from being polluted by water and improving the waterproof property of the paper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0014] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have a technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2For the present utility model Figure 1 An enlarged view of A in the figure;

[0017] Figure 3 A partial schematic diagram of the support sleeve of the present utility model;

[0018] Figure 4 For the present utility model Figure 1 An enlarged view of B in the figure;

[0019] Figure 5 For the present utility model Figure 1 An enlarged view of C in the figure.

[0020] Legend description:

[0021] 1. Inner lining sleeve; 2. Encapsulation end; 3. Inner layer paper tube; 4. Support sleeve; 5. Outer layer paper tube; 6. Disassembly and assembly cover; 7. Screw hole; 8. First bolt; 9. Docking end; 10. Thread; 11. Circular groove; 12. Thread locking hole; 13. Second bolt. Specific implementation manners

[0022] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0023] Embodiment 1: A high-strength seamless paper tube, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 5 , includes an inner lining sleeve 1 and an encapsulation end 2 integrally formed with the inner lining sleeve 1. An inner layer paper tube 3 is wound around the outside of the inner lining sleeve 1. A support sleeve 4 is fittingly sleeved outside the inner layer paper tube 3. The support sleeve 4 is of an annular structure and the outer periphery of the support sleeve 4 is a curved wall surface. An outer layer paper tube 5 is wound around the outside of the support sleeve 4. A disassembly and assembly cover 6 is provided at the upper end of the inner lining sleeve 1.

[0024] Furthermore, a screw hole 7 penetrating through the outer layer paper tube 5 is opened inside the inner lining sleeve 1, and a first bolt 8 for mutually supporting the inner lining sleeve 1 and the support sleeve 4 is threadedly connected inside the screw hole 7.

[0025] Furthermore, a circular groove 11 is opened at the bottom of the encapsulation end 2, a thread locking hole 12 penetrating through the support sleeve 4 is opened inside the circular groove 11, and a second bolt 13 is threadedly connected inside the thread locking hole 12.

[0026] Furthermore, when the second bolt 13 is threadedly connected to the threaded lock hole 12 inside the encapsulation end 2 and the support sleeve 4, a limiting and supporting state is formed between the support sleeve 4 and the encapsulation end 2.

[0027] Embodiment 2: A high-strength seamless paper tube, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 shown, includes a lining sleeve 1 and an encapsulation end 2 integrally formed with the lining sleeve 1. An inner paper tube 3 is wound around the outside of the lining sleeve 1. A support sleeve 4 is fittingly sleeved outside the inner paper tube 3. The support sleeve 4 is of an annular structure and the outer periphery of the support sleeve 4 has a curved wall surface. An outer paper tube 5 is wound around the outside of the support sleeve 4. A disassembly and assembly cover 6 is provided at the upper end of the lining sleeve 1.

[0028] Furthermore, a screw hole 7 penetrating the outer paper tube 5 is provided inside the lining sleeve 1. A first bolt 8 that mutually supports the lining sleeve 1 and the support sleeve 4 is threadedly connected inside the screw hole 7. A circular groove 11 is provided at the bottom of the encapsulation end 2. A threaded lock hole 12 penetrating the support sleeve 4 is provided inside the circular groove 11. A second bolt 13 is threadedly connected inside the threaded lock hole 12. When the second bolt 13 is threadedly connected to the threaded lock hole 12 inside the encapsulation end 2 and the support sleeve 4, a limiting and supporting state is formed between the support sleeve 4 and the encapsulation end 2.

[0029] Furthermore, a docking end 9 is integrally formed at the bottom of the disassembly and assembly cover 6. Threads 10 that fit each other are provided on the outer periphery of the docking end 9 and the inner side of the lining sleeve 1. The disassembly and assembly cover 6 is threadedly connected and matched with the inner side of the lining sleeve 1 through the threads 10 on the outer periphery of the docking end 9.

[0030] The working principle of the present utility model:

[0031] The inner paper tube 3 is first wound and fixed to the outside of the inner lining sleeve 1. After the inner paper tube 3 is wound and formed, the support sleeve 4 is then fitted over the outside of the inner paper tube 3. At the same time, the outer paper tube 5 can be wound and formed on the outside of the support sleeve 4. In this way, the inner paper tube 3 and the outer paper tube 5 can be wound on the basis of the inner lining sleeve 1 and the support sleeve 4. By the material properties of the inner lining sleeve 1 and the support sleeve 4, the hardness of the inner paper tube 3 and the outer paper tube 5 themselves is increased. A screw hole 7 penetrating the outer paper tube 5 is provided inside the inner lining sleeve 1. After the first bolt 8 is threadedly connected to the inside of the screw hole 7, the limit support effect between the inner lining sleeve 1 and the support sleeve 4 can be increased, and the overall compressive resistance of the paper tube can be improved. A circular groove 11 is provided at the bottom of the encapsulation end 2, and a threaded locking hole 12 extending to the inside of the support sleeve 4 is provided inside the circular groove 11. At this time, after the second bolt 13 is threadedly connected to the threaded locking hole 12 inside the encapsulation end 2 and the support sleeve 4, the support sleeve 4 and the encapsulation end 2 can be limited and supported, and the compressive support stability of the support sleeve 4 can be improved. The disassembly and assembly cover 6 at the other end of the inner lining sleeve 1 can be threadedly connected to the inside of the inner lining sleeve 1 through the thread 10 on the periphery of the docking end 9. In this way, the encapsulation ends 2 and the disassembly and assembly cover 6 at both ends of the inner lining sleeve 1 can encapsulate and close the two ends of the inner paper tube 3 and the outer paper tube 5 for protection, and the inner lining sleeve 1 can provide waterproof protection for the inside of the paper tube.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength seamless paper tube, characterized in that: It includes an inner lining sleeve (1) and a packaging end (2) integrally formed with the inner lining sleeve (1). An inner paper tube (3) is wound around the outside of the inner lining sleeve (1). A support sleeve (4) is fitted and sleeved outside the inner paper tube (3). The support sleeve (4) is of an annular structure and the periphery of the support sleeve (4) has a curved wall surface. An outer paper tube (5) is wound around the outside of the support sleeve (4). A disassembly and assembly cover (6) is provided at the upper end of the inner lining sleeve (1).

2. The high-strength seamless paper tube according to claim 1, wherein: A screw hole (7) penetrating the outer paper tube (5) is formed inside the inner lining sleeve (1). A first bolt (8) that mutually supports the inner lining sleeve (1) and the support sleeve (4) is threadedly connected inside the screw hole (7).

3. A high-strength seamless paper tube according to claim 1, characterized in that: A circular groove (11) is formed at the bottom of the packaging end (2). A threaded locking hole (12) penetrating the support sleeve (4) is formed inside the circular groove (11). A second bolt (13) is threadedly connected inside the threaded locking hole (12).

4. The high-strength seamless paper tube according to claim 3, wherein: When the second bolt (13) is threadedly connected with the threaded locking hole (12) inside the packaging end (2) and the support sleeve (4), a limiting support state is formed between the support sleeve (4) and the packaging end (2).

5. The high-strength seamless paper tube according to claim 2, characterized in that: A docking end (9) is integrally formed at the bottom of the disassembly and assembly cover (6). Threads (10) that fit with each other are formed on the periphery of the docking end (9) and the inside of the inner lining sleeve (1). The disassembly and assembly cover (6) is threadedly connected and matched with the inside of the inner lining sleeve (1) through the threads (10) on the periphery of the docking end (9).

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