Leakage-proof cover for paper can

Abstract

The utility model relates to the technical field of paper can covers, and discloses an anti-seepage cover for a paper can, which comprises a can cover, a can body is arranged at the lower part of the can cover, an anti-seepage assembly is arranged at the lower part of the can cover, and a ventilation assembly is arranged in the can cover; the anti-permeation assembly comprises a sealing block, the sealing block is fixedly connected to the lower portion of the tank cover, the tank cover is sleeved with a rubber ring, the ventilation assembly comprises a rotating rod, the rotating rod is rotationally connected to the interior of the tank cover and the interior of the sealing block, and a hand wheel is fixedly connected to the top of the rotating rod. According to the paper can sealing device, the paper can can be conveniently sealed, the mode that the edge of the cover is directly buckled on the edge of the top of the paper can generally is different, the rubber ring can be tightly attached to the inner wall of a can body due to the flexibility of the rubber ring, external substances such as air and water are prevented from entering the can, and a firmer sealing effect is achieved by pressing the rubber ring through the sealing block; and the refreshing time of the contents is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of paper can covers, in particular to an anti-leakage cover for a paper can. Background Art

[0002] Paper cans are cylindrical packaging containers made of cardboard or paper. They are widely used for packaging food, tea, coffee, milk powder, dry goods, beverages, and other products. Due to their environmental friendliness, lightness, and recyclability, paper cans have gradually replaced some metal cans and plastic cans.

[0003] A paper can is composed of a can body and a lid. The lid of the paper can is used to seal and protect the contents. Existing lids generally use the edge of the lid to directly buckle on the top edge of the paper can. Although this method can seal the paper can, it will loosen under external force or long-term use, resulting in a gap between the lid and the can body. External substances such as air and moisture can easily penetrate into the can, affecting the quality and freshness of the contents. Summary of the Invention

[0004] In order to make up for the above shortcomings, the utility model provides a leakage-proof lid for paper cans, which aims to improve the problem in the prior art that the lid will loosen under the action of external force or long-term use, resulting in a gap between the lid and the can body, making it easy for external substances such as air and moisture to penetrate into the can, affecting the quality and freshness of the contents.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A leak-proof cover for a paper can, comprising a can cover, a can body disposed at the lower portion of the can cover, an anti-permeation component disposed at the lower portion of the can cover, and a ventilation component installed inside the can cover;

[0007] The anti-permeation component comprises a sealing block which is fixedly connected to the lower part of the tank cover, and a rubber ring is sleeved on the outside of the tank cover.

[0008] Furthermore, the ventilation assembly includes a rotating rod, which is rotatably connected to the inside of the tank cover and the sealing block, a handwheel is fixedly connected to the top of the rotating rod, a rotating block is fixedly connected to the outside of the rotating rod, the rotating block is rotatably connected to the inside of the tank cover, a first sector block is fixedly connected to the outside of the rotating block, and a second sector block is fixedly connected to the bottom of the rotating rod.

[0009] Furthermore, a base is fixedly connected to the bottom of the tank body.

[0010] Furthermore, protrusions are fixedly connected to both sides of the upper portion of the tank cover, and grooves are provided inside the two protrusions.

[0011] Furthermore, the exterior of the tank body is provided with a waterproof coating, which is a polyethylene coating.

[0012] Furthermore, a slot is provided inside the tank body, and the rubber ring is engaged with the slot.

[0013] Furthermore, a placement box is provided inside the tank body, and the placement box is used to place materials.

[0014] Furthermore, a ventilation hole is provided inside the tank cover.

[0015] The utility model has the following beneficial effects:

[0016] 1. In this utility model, when sealing a paper can, the rubber ring is first placed on the outside of the sealing block, and then the can lid is placed on the can body, so that the sealing block and rubber ring are inserted into the can body. Once the rubber ring contacts the slot, it snaps into place due to its flexibility, forming a seal. Unlike traditional snap-fit ​​methods, the rubber ring's flexibility fits tightly against the inner wall of the can body, preventing air and moisture from entering. The sealing block compresses the rubber ring, enhancing the seal and extending the shelf life of the contents.

[0017] 2. In the present invention, when ventilating a paper can, the hand wheel is rotated to drive the rotating rod, so that the rotating block fixed thereon rotates, and then drives the first sector block and the second sector block to release the cover of the ventilation hole to achieve ventilation. When closing, the operation is repeated to cover the ventilation hole. This anti-penetration cover design facilitates ventilation, effectively prevents mold and moisture, and reduces moisture accumulation in the can. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a leak-proof lid for a paper can proposed in the present invention;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of a leak-proof lid for a paper can proposed in the present invention;

[0020] Figure 3 This is a schematic diagram of the card slot structure of a leak-proof lid for a paper can proposed by the present invention;

[0021] Figure 4 This is a cross-sectional view of a leak-proof lid for a paper can proposed in the present invention;

[0022] Figure 5 This is a schematic structural diagram of the second sector block of the anti-leakage cover for a paper can proposed by the present invention.

[0023] Legend:

[0024] 1. Tank body; 2. Tank cover; 3. Bump; 4. Groove; 5. Base; 6. Handwheel; 7. Sealing block; 8. Rubber ring; 9. Slot; 10. Placement box; 11. Rotating rod; 12. Rotating block; 13. First sector block; 14. Second sector block; 15. Ventilation hole. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1 、 Figure 2 and Figure 3 The lid 2 is provided with a sealing member 12 for sealing the paper can 1, and the lid 2 is provided with a sealing member 13 for sealing the paper can 1. The lid 2 is provided with a sealing member 12 for sealing the paper can 1, and the lid 2 is provided with a sealing member 13 for sealing the paper can 1. The lid 2 is provided with a sealing member 12 for sealing the paper can 1, and the lid 2 is provided with a sealing member 13 for sealing the paper can 1. The bottom of the can 1 is fixedly connected to a base 5, and the base 5 can be used to keep the can 1 away from the ground. Both sides of the upper part of the lid 2 are fixedly connected to protrusions 3, and grooves 4 are provided inside the two protrusions 3 to facilitate the operator to open the paper can. The outside of the can 1 is provided with a waterproof coating, which is a polyethylene coating, which can enhance the durability of the paper can in a humid environment, prevent the paper material from softening or deforming due to water absorption, and extend the service life of the paper can. A placing box 10 is provided inside the can 1, and the placing box 10 is used to place materials. The lid 2 is provided with ventilation holes 15 inside, and the ventilation holes 15 are provided to facilitate ventilation and drying of the paper can 1.

[0027] The anti-permeation component includes a sealing block 7, which is fixedly connected to the lower part of the tank cover 2. A rubber ring 8 is sleeved on the outside of the tank cover 2. The softness and elasticity of the rubber ring 8 enable it to adapt to the shape of the tank mouth. Even when the tank body 1 is slightly squeezed or impacted, it can maintain a good sealing effect to prevent the liquid or powder contents from leaking. A card slot 9 is opened inside the tank body 1, and the rubber ring 8 is engaged with the card slot 9.

[0028] Specifically, when sealing the paper can, first, put the rubber ring 8 on the outside of the sealing block 7 to ensure that the rubber ring 8 is tightly combined with the sealing block 7. The rubber ring 8 is made of a soft and elastic material. The characteristics of this material enable it to fit closely to the inner wall of the can body 1 in subsequent operations, thereby improving the sealing effect. Subsequently, the can cover 2 is firmly placed on the upper position of the can body 1, so that the sealing block 7 and the rubber ring 8 are inserted into the interior of the can body 1 together. At this time, due to the softness of the rubber ring 8, when it contacts the preset card slot 9 inside the can body 1, the rubber ring 8 will be slightly deformed and fully inserted. A highly fitting sealing interface is formed inside the card slot 9. This sealing method is different from the traditional method in which the edge of the lid is directly buckled onto the top edge of the can body 1. The traditional buckling method usually relies on simple mechanical buckles, which may become loose under long-term use or external force, resulting in a weakened sealing effect. The softness and elasticity of the rubber ring 8 enable it to better adapt to the inner wall of the can body 1. Even if the can body 1 is slightly deformed or opened and closed multiple times, it can still maintain a good sealing state, preventing air, moisture, dust and other external substances from entering the can, thereby ensuring the safety and freshness of the contents.

[0029] Reference Figure 4 and Figure 5 The ventilation assembly includes a rotating rod 11, which is rotatably connected to the inside of the tank cover 2 and the sealing block 7. The top of the rotating rod 11 is fixedly connected to a handwheel 6. The handwheel 6 is provided to facilitate the use of the operator. The outside of the rotating rod 11 is fixedly connected to a rotating block 12, which is rotatably connected to the inside of the tank cover 2. The outside of the rotating block 12 is fixedly connected to a first sector block 13, and the bottom of the rotating rod 11 is fixedly connected to a second sector block 14. By providing the first sector block 13 and the second sector block 14, a double seal is achieved on the ventilation hole 15.

[0030] Specifically, when ventilating the material inside the paper can, first, by turning the hand wheel 6, the rotation of the hand wheel 6 drives the rotating rod 11 at its center to rotate together inside the can cover 2 and the sealing block 7, and the rotation of the rotating rod 11 further drives the rotating block 12 fixed to its outside, so that the rotating block 12 rotates synchronously around its axis. At the same time, the movement of the rotating block 12 drives the first sector block 13 fixed to its outside to rotate together. During the rotation process, the rotating rod 11 also drives the second sector block 14 fixed at the bottom to rotate synchronously. When the first sector block 13 and the second sector block 14 rotate, they gradually misalign with the ventilation hole 15 on the can cover 2, so that the ventilation hole 15 is exposed to the external environment, thereby opening the ventilation path. Through this design, the air inside and outside the can can circulate freely, effectively The invention can reduce the humidity in the tank and avoid the contents from getting moldy, damp or deteriorating due to moisture accumulation. It is particularly suitable for packaging of products that are sensitive to humidity, such as dry food, grains, tea, etc., to ensure the safe storage of internal materials. When the ventilation needs to be closed, the above operation is repeated and the hand wheel 6 is turned again. The hand wheel 6 drives the rotating rod 11 to rotate, so that the first sector block 13 and the second sector block 14 are re-aligned with the ventilation hole 15 and cover the hole opening to achieve the closed state of the ventilation hole 15. The ventilation hole 15 is completely covered to prevent external air, moisture, etc. from entering the tank again, thereby ensuring the sealing and dryness of the contents. The advantage of this design lies in the flexibility and convenience of the ventilation operation. The user can open or close the ventilation hole 15 at any time according to needs without removing the tank cover 2, thereby ensuring the sealing effect during use.

[0031] Working principle: When sealing a paper can, first, put the rubber ring 8 on the outside of the sealing block 7, then put the can lid 2 on the upper part of the can body 1, and insert the sealing block 7 and the rubber ring 8 into the inside of the can body 1. When the rubber ring 8 contacts the card slot 9, the rubber ring 8 will be fully stuck into the inside of the card slot 9 due to its own soft material, forming a seal on the can body 1. The cooperation of the sealing block 7 and the rubber ring 8 facilitates the sealing operation of the paper can. Different from the general method of directly buckling the edge of the lid on the top edge of the paper can, the softness of the rubber ring 8 enables it to fit closely to the inner wall of the can body 1, preventing external substances such as air and moisture from entering the can. The sealing block 7 forms a stronger sealing effect by pressing the rubber ring 8, effectively extending the shelf life of the contents.

[0032] When ventilating the material placed inside the paper can, by turning the hand wheel 6, the hand wheel 6 rotates and the rotating rod 11 fixed in the middle rotates inside the can cover 2 and the sealing block 7, and when the rotating rod 11 rotates, the rotating block 12 fixed on the outside rotates, and the rotating block 12 rotates and the first sector block 13 fixed on the outside rotates. At the same time, the rotating rod 11 rotates and the second sector block 14 fixed on the bottom rotates, so that the first sector block 13 and the second sector block 14 release the cover of the ventilation hole 15. When closing, repeat the above operation so that the first sector block 13 and the second sector block 14 cover the ventilation hole 15, so that the anti-penetration cover is convenient for ventilating the inside of the paper can, effectively preventing mold or moisture deterioration, and reducing moisture accumulation inside the paper can.

[0033] 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 leak-proof cover for a paper can, comprising a can cover (2), characterized in that: The tank body (1) is provided at the lower portion of the tank cover (2), an anti-permeation component is provided at the lower portion of the tank cover (2), and a ventilation component is installed inside the tank cover (2); The anti-permeation component comprises a sealing block (7), wherein the sealing block (7) is fixedly connected to the lower part of the tank cover (2), and a rubber ring (8) is sleeved on the outside of the tank cover (2).

2. The anti-leakage cover for a paper can according to claim 1, characterized in that: The ventilation assembly comprises a rotating rod (11), the rotating rod (11) being rotatably connected to the inside of the tank cover (2) and the sealing block (7), the top of the rotating rod (11) being fixedly connected to a hand wheel (6), the outside of the rotating rod (11) being fixedly connected to a rotating block (12), the rotating block (12) being rotatably connected to the inside of the tank cover (2), the outside of the rotating block (12) being fixedly connected to a first sector block (13), and the bottom of the rotating rod (11) being fixedly connected to a second sector block (14).

3. The anti-leakage cover for a paper can according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly connected to a base (5).

4. The anti-leakage cover for a paper can according to claim 1, characterized in that: Both sides of the upper portion of the tank cover (2) are fixedly connected with protrusions (3), and grooves (4) are provided inside the two protrusions (3).

5. The anti-leakage cover for a paper can according to claim 1, characterized in that: The exterior of the tank body (1) is provided with a waterproof coating, which is a polyethylene coating.

6. The anti-leakage cover for a paper can according to claim 1, characterized in that: A clamping groove (9) is provided inside the tank body (1), and the rubber ring (8) is engaged with the clamping groove (9).

7. The anti-leakage cover for a paper can according to claim 1, characterized in that: A placement box (10) is provided inside the tank body (1), and the placement box (10) is used to place materials.

8. The anti-leakage cover for a paper can according to claim 1, characterized in that: A ventilation hole (15) is provided inside the tank cover (2).

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