Moistureproof high-strength paper tube

Abstract

The utility model discloses a moisture-proof type high-strength paper tube which comprises a paper tube body and paper covers arranged at the two ends of the paper tube body, a groove is formed in the paper tube body, a plurality of protrusions are arranged on the inner wall of each paper cover, a clamping groove and a clamping strip arranged in the clamping groove are arranged on the upper end face of the paper tube body, and the paper covers are arranged on the paper tube body. A slot communicated with the clamping groove is formed in the lower end of the clamping groove, a plug pin is arranged in the slot in a sliding mode, and when the paper cover and the paper tube body are buckled tightly, the paper cover drives the plug pin to move towards the clamping groove, the clamping strip is driven to be tightly attached to the inner wall of the paper cover, and the sealing and damp-proof effects are achieved. The paper cover extrudes the plug pin to drive the clamping strip to be tightly attached to the paper cover, and the damp-proof effect is achieved; the protrusions on the paper cover are clamped in the grooves, so that the paper tube and the paper cover can be better locked, and the purpose that the strength of the paper tube is higher is achieved.

Description

Technical Field

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

[0002] At present, paper can and paper tube packaging has been widely used in many industries, such as food, gifts, cosmetics, electronic products, daily chemical products and many other industries. As a packaging container with paper as the main raw material, paper can and paper tube packaging conforms to the global green and environmentally friendly packaging development trend and can meet the packaging needs of most industries. Under the development trend of replacing plastic with paper, paper can and paper tube packaging will usher in better development.

[0003] In a comparative document of a full paper tube proposed with announcement number CN211417933U, it is specifically proposed that "it includes a tube body and a tube cover above the tube mouth, the cover tube includes a cover ring and a cover plate, the cover plate includes a cover paper, an intermediate plate and a first built-in plate, the first built-in plate includes an intermediate plate and a bending portion, and the first built-in plate is pressed and formed with the cover ring and the intermediate plate by a press machine."

[0004] The above-mentioned comparative document also has the following defects: the comparative document has made certain design modifications to the paper cover, but there is no statement in the comparative document about the connection between the cylinder body and the cylinder cover. When the paper tube carries heavy objects, the cylinder body and the cylinder cover will still fall off. For this reason, we propose a moisture-proof high-strength paper tube. Utility Model Content

[0005] The utility model aims to provide a moisture-proof high-strength paper tube to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A moisture-proof high-strength paper tube comprises a paper tube body and paper covers arranged at both ends of the paper tube body, wherein the paper tube body is provided with a groove, the inner wall of the paper cover is provided with a plurality of protrusions, the upper end surface of the paper tube body is provided with a card slot and a card strip arranged inside the card slot, the lower end of the card slot is provided with a slot hole communicating with the card slot, a latch is slidably arranged in the slot hole, and when the paper cover is fastened with the paper tube body, the paper cover drives the latch to move toward the card slot direction, driving the card strip to fit tightly with the inner wall of the paper cover to achieve a sealing and moisture-proof effect.

[0008] As a preference, the inner wall of the paper tube body is provided with a waterproof coating.

[0009] As a preferred embodiment, a ramp a and a ramp b are respectively provided at both ends of the latch.

[0010] As a preferred embodiment, a ramp c is provided on the clamping strip, and the inclination of the ramp c is consistent with that of the ramp b.

[0011] As a preferred embodiment, the paper cover comprises a cover plate and a cover ring, and the bent portion between the cover plate and the cover ring is pressed and formed by a press.

[0012] As another preferred embodiment, the width of the protrusion is consistent with that of the groove.

[0013] Beneficial effects of the utility model:

[0014] In the utility model, a groove is provided on the paper tube body, a protrusion with the same width as the groove is provided on the paper cover, and the paper cover is clamped in the groove by the protrusion, so that the paper tube and the paper cover can be better locked, thereby achieving the purpose of making the paper tube stronger; a groove is provided on the upper end of the paper tube body, a clamping strip corresponding to the groove is provided on the groove, a plurality of slot holes communicating with the groove are provided on the circumference of the groove, and latches are correspondingly provided in the slot holes. When the paper cover is locked on the paper tube body, the latch is pressed by the paper cover to drive the clamping strip to fit closely with the paper cover, thereby achieving a moisture-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the axonometric structure proposed by the utility model.

[0017] Figure 2 This is a schematic diagram of the front explosion structure proposed by the utility model.

[0018] Figure 3 This is a schematic diagram of the axonometric explosion structure proposed by the utility model.

[0019] Figure 4 This is a schematic cross-sectional view of the structure of the utility model.

[0020] Figure 5 This is a schematic diagram of the enlarged structure of part A proposed by the utility model.

[0021] In the figure: 1-paper tube body; 2-paper cover; 3-groove; 4-protrusion; 5-card slot; 6-card strip; 7-slot hole; 8-latch pin; 21-cover plate; 22-cover ring; 51-inclined platform c; 81-inclined platform a; 82-inclined platform b. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Embodiment 1

[0024] Reference Figure 1-5 , comprising a paper tube body 1 and paper covers 2 arranged at both ends of the paper tube body 1, the paper tube body 1 is provided with a groove 3, the inner wall of the paper cover 2 is provided with a plurality of protrusions 4, the upper end surface of the paper tube body 1 is provided with a card slot 5 and a card strip 6 arranged inside the card slot 5, the lower end of the card slot 5 is provided with a slot hole 7 communicating with the card slot 5, and a latch 8 is slidably arranged in the slot hole 7. When the paper cover 2 is fastened with the paper tube body 1, the paper cover 2 drives the latch 8 to move toward the card slot 5, driving the card strip 6 to fit closely with the inner wall of the paper cover 2 to achieve a sealing and moisture-proof effect.

[0025] Reference Figure 4-5 The inner wall of the paper tube body 1 is provided with a waterproof coating.

[0026] It is worth mentioning that by providing an inner wall layer and an outer wall layer on the paper tube body 1, the hardness of the paper tube itself is enhanced, and the desiccant component is added to the moisture-proof layer to achieve a better moisture-proof effect.

[0027] Reference Figure 4 The paper cover 2 includes a cover plate 21 and a cover ring 22, and the bent portion between the cover plate 21 and the cover ring 22 is pressed and formed by a press machine.

[0028] It is worth mentioning here that the integral molding of the bent portion enhances the stability of the connection between the cover plate and the cover ring, making the cover plate and the cover ring more secure and enhancing the pressure bearing capacity of the paper cover.

[0029] Reference Figure 5 The two ends of the latch 8 are provided with a ramp a81 and a ramp b82 respectively. The clamping strip 6 is provided with a ramp c51, and the inclination of the ramp c51 is consistent with that of the ramp b82. The width of the protrusion 4 is consistent with that of the groove 3.

[0030] It is worth mentioning here that a groove is opened at the upper end of the paper tube body, and a corresponding card strip is arranged on the groove. A number of slot holes communicating with the groove are arranged on the circumferential side of the groove, and corresponding latches are arranged in the slot holes. When the paper cover is locked on the paper tube body, the latch is squeezed by the paper cover to drive the card strip and the paper cover to fit tightly, thereby achieving a moisture-proof effect.

[0031] The working process is as follows:

[0032] The protrusion 4 on the paper cover 2 is aligned with the opening of the groove 3 on the paper tube body 1, pressed down and rotated. The paper cover 2 presses the inclined platform a81 on the latch 8 during the pressing process, and the inclined platform b82 at the other end of the latch 8 presses the card strip 6, driving the card strip 6 to fit tightly with the paper cover 2.

[0033] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A moisture-proof high-strength paper tube, comprising a paper tube body (1) and paper covers (2) arranged at both ends of the paper tube body (1), characterized in that: The paper tube body (1) is provided with a groove (3), the inner wall of the paper cover (2) is provided with a plurality of protrusions (4), the upper end surface of the paper tube body (1) is provided with a card slot (5) and a card strip (6) arranged inside the card slot (5), the lower end of the card slot (5) is provided with a slot hole (7) communicating with the card slot (5), a latch (8) is slidably arranged in the slot hole (7), when the paper cover (2) is fastened with the paper tube body (1), the paper cover (2) drives the latch pin (8) to move towards the card slot (5), driving the card strip (6) to fit tightly with the inner wall of the paper cover (2) to achieve a sealing and moisture-proof effect.

2. A moisture-proof high-strength paper tube according to claim 1, characterized in that: The inner wall of the paper tube body (1) is provided with a waterproof coating.

3. The moisture-proof high-strength paper tube according to claim 1, characterized in that: The two ends of the latch pin (8) are respectively provided with a ramp a (81) and a ramp b (82).

4. The moisture-proof high-strength paper tube according to claim 1, characterized in that: The clamping strip (6) is provided with an inclined platform c (51), and the inclination of the inclined platform c (51) is consistent with that of the inclined platform b (82).

5. The moisture-proof high-strength paper tube according to claim 1, characterized in that: The paper cover (2) comprises a cover plate (21) and a cover ring (22), and the bent portion between the cover plate (21) and the cover ring (22) is pressed and formed by a press.

6. The moisture-proof high-strength paper tube according to claim 1, characterized in that: The width of the protrusion (4) is consistent with that of the groove (3).

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