Easily-torn cover capable of preventing can contents from being polluted
By designing an easy-tear cap structure with a rotating component and a sealing ring, the problem of contamination after the easy-tear cap is opened is solved, realizing the hygienic protection and secondary utilization of the contents of the can.
Patent Information
- Application Number
- CN202423238875.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing easy-tear lids have a large opening once the sealing film is torn off, allowing dust, debris, insects, and other impurities from the surrounding environment to easily enter the container, contaminating the contents and affecting the hygiene and safety of food and medicine.
An easy-tear cap was designed, comprising a rotating component, a knob, a partition, and a sealing ring. The knob drives the rotating component and the partition to rotate, so that the opening is small when the discharge hole and the discharge port coincide, preventing foreign matter from entering. At the same time, the rotating component drives the injection cylinder to move, so as to facilitate the secondary addition of granular contents.
It effectively prevents contamination of the can's contents, ensures a tight seal when opened, facilitates reuse, prevents dust, debris, and insects from entering, and supports the addition of contents.
Smart Images

Figure CN223508736U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of easy-tear cap technology, specifically relating to an easy-tear cap that prevents contamination of can contents. Background Technology
[0002] Easy-tear caps, also known as pull-tab caps, are caps with a pull ring used to seal containers such as cans, and belong to the category of metal packaging products. The basic materials for easy-tear caps are usually tinplate or aluminum. These materials are processed through processes such as punching inner holes, stretching, and rolling to meet different packaging needs. Additionally, easy-tear caps can be covered with ultra-high temperature sterilization-resistant metal composite films or composite plastic films to improve their performance and aesthetics.
[0003] The manufacturing process of easy-tear caps includes multiple steps such as punching, stretching, rolling, scoring, and pull ring riveting. Among these, the depth and shape of the scoring significantly affect the opening and sealing performance of the easy-tear cap. Through meticulous processing, easy-tear caps ensure they will not break or deform upon opening while maintaining a good seal. As a high-performance metal packaging product, easy-tear caps have broad application prospects in the food, beverage, and cosmetic industries.
[0004] The existing easy-tear caps have the following problems during use:
[0005] Once the sealing film of an easy-tear cap is torn off, the large opening and lack of additional protective measures allow small debris from the surrounding environment, such as dust, crumbs, and even insects, to easily fall into the container unintentionally. This directly threatens the hygiene and safety of the contents, potentially contaminating food, medicine, or other sensitive products, thereby affecting their quality, taste, and even the health of consumers. Utility Model Content
[0006] (1) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an easy-tear cap that prevents contamination of can contents. This easy-tear cap aims to solve the problem that, once the sealing film of an existing easy-tear cap is torn off, the large opening and lack of additional protective measures allow small debris from the surrounding environment, such as dust, crumbs, and even insects, to easily fall into the can unintentionally. This directly threatens the hygiene and safety of the can contents and may lead to contamination of food, medicine, or other sensitive products, thereby affecting their quality, taste, and even the health of consumers.
[0008] (2) Technical solution
[0009] To solve the above-mentioned technical problems, this utility model provides an easy-tear cap to prevent contamination of can contents. The easy-tear cap includes an easy-tear cap body, a sealing film, and a pull tab. The sealing film is connected to the surface of the easy-tear cap body, and the pull tab is connected to the surface of the sealing film. A discharge port is opened on the surface of the easy-tear cap body, a sealing ring is connected to the inner surface of the easy-tear cap body, a circular hole is opened on the surface of the easy-tear cap body, a rotating component passes through the inside of the circular hole, a knob is connected to one end of the rotating component, and a partition is connected to the other end of the rotating component. A discharge hole is opened on the surface of the partition.
[0010] When using the easy-tear cap of this technical solution, the knob can rotate the rotating part inside the round hole. The rotating part can rotate the partition, and the partition can rotate the discharge hole. When the discharge hole coincides with the discharge outlet, the contents of the cylinder can be poured out from the discharge outlet. At this time, the opening is small, making it difficult for dust, debris, or even insects to fall into the cylinder.
[0011] Preferably, the sealing ring is made of rubber, and the partition forms a sealing structure between the sealing ring and the easy-tear cap body. The sealing effect of the sealing ring can seal the discharge hole when it is isolated outside the sealing ring, thereby preventing dust from entering the can when the easy-tear cap is not in use.
[0012] Furthermore, the rotating component and the knob are integrated into one structure, and the rotating component and the partition are integrated into one structure. When the knob is subjected to force, it can drive the partition to rotate through the rotating component. When the partition drives the discharge hole to rotate and coincides with the discharge port, the contents of the cylinder can be poured out from the discharge port.
[0013] Furthermore, the rotating component forms a rotating structure with the easy-tear cover body through the round hole. When the knob is subjected to force, it can be driven, and when the rotating component is subjected to force, it can rotate inside the round hole, which can limit the movement direction of the partition.
[0014] Furthermore, a material injection cylinder is connected through the surface of the partition, the inner wall of the material injection cylinder is connected with a protruding thread, a threaded plug is connected inside the material injection cylinder, and a twisting block is connected to the end of the threaded plug.
[0015] Furthermore, the injection cylinder and the partition are integrated into one structure, the threaded plug and the torsion block are integrated into one structure, and the threaded plug and the convex thread are connected by a thread. When the threaded plug rotates, it can move outward through the threaded connection with the convex thread. When the threaded plug moves to the outside of the injection cylinder, the granular contents can be re-injected into the cylinder through the injection cylinder.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. In this utility model, when the knob is turned, it can drive the rotating part to rotate inside the round hole. When the rotating part rotates, it can drive the partition to rotate. When the partition rotates, it can drive the discharge hole to rotate. When the discharge hole coincides with the discharge outlet, the contents of the cylinder can be poured out from the discharge outlet. At this time, the opening is small, and dust, debris or even insects are difficult to fall into the cylinder, thereby avoiding contamination of the contents of the cylinder.
[0019] 2. In this utility model, when the knob is turned, the partition can be rotated by the rotating component. When the partition rotates, the injection cylinder can be moved to one side of the discharge port. At this time, the torsion block can be rotated. When the torsion block rotates, it can drive the threaded plug. When the threaded plug rotates, it can move outward through the threaded connection with the protruding thread. When the threaded plug moves to the outside of the injection cylinder, the granular contents can be re-injected into the cylinder through the injection cylinder. This makes it convenient for the easy-tear cap cylinder body to be reused. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main structure of one specific embodiment of the device of this utility model;
[0021] Figure 2 This is a schematic diagram of the internal structure of one specific embodiment of the device of this utility model;
[0022] Figure 3 This is a cross-sectional view and a partial enlarged view of the internal structure of a specific embodiment of the device of this utility model;
[0023] Figure 4 This is an exploded structural diagram of a specific embodiment of the device of this utility model.
[0024] Figure 5 A schematic diagram of the partition structure of one specific embodiment of the device of this utility model;
[0025] Figure 6 This is an exploded view of the injection cylinder connection structure of a specific embodiment of the device of this utility model.
[0026] The markings in the attached diagram are as follows: 1. Easy-tear cap body; 2. Sealing film; 3. Pull tab; 4. Discharge port; 5. Sealing ring; 6. Round hole; 7. Rotating component; 8. Knob; 9. Partition; 10. Discharge hole; 11. Injection cylinder; 12. Convex thread; 13. Threaded plug; 14. Twist block. Detailed Implementation
[0027] This specific embodiment is an easy-tear cap that prevents contamination of the contents of a can, as shown in the schematic diagram below. Figure 1-6As shown, the easy-tear cap includes an easy-tear cap body 1, a sealing film 2, and a pull tab 3. The sealing film 2 is connected to the surface of the easy-tear cap body 1, and the pull tab 3 is connected to the surface of the sealing film 2. A discharge port 4 is opened on the surface of the easy-tear cap body 1, a sealing ring 5 is connected to the inner surface of the easy-tear cap body 1, a round hole 6 is opened on the surface of the easy-tear cap body 1, a rotating component 7 passes through the inside of the round hole 6, a knob 8 is connected to the end of the rotating component 7, a partition 9 is connected to the other end of the rotating component 7, and a discharge hole 10 is opened on the surface of the partition 9.
[0028] Among them, the sealing ring 5 is made of rubber, the partition 9 forms a sealing structure between the sealing ring 5 and the easy-tear cover body 1, the rotating part 7 and the knob 8 are an integral structure, the rotating part 7 and the partition 9 are an integral structure, and the rotating part 7 forms a rotating structure between the round hole 6 and the easy-tear cover body 1.
[0029] In addition, a filling cylinder 11 is connected through the surface of the partition 9, a protruding thread 12 is connected to the inner wall of the filling cylinder 11, a threaded plug 13 is connected inside the filling cylinder 11, and a twist block 14 is connected to the end of the threaded plug 13. The filling cylinder 11 and the partition 9 are an integral structure, the threaded plug 13 and the twist block 14 are an integral structure, and the threaded plug 13 and the protruding thread 12 are threadedly connected.
[0030] Working principle: When using the device of this technical solution, first install the easy-tear cap body 1 on the surface of the can. When the granular contents of the can are needed, the sealing film 2 can be torn off by the pull tab 3. Then, the knob 8 can be turned. When the knob 8 is subjected to force, it can drive the rotating part 7 to rotate inside the round hole 6. When the rotating part 7 rotates, it can drive the partition 9 to rotate. When the partition 9 rotates, it can drive the discharge hole 10 to rotate. When the discharge hole 10 coincides with the discharge port 4, the contents of the can can be poured out from the discharge port 4. At this time, the opening is small, and dust, debris and even insects are difficult to fall into the can.
[0031] After the contents of the cylinder are used up, the knob 8 can be turned. When the knob 8 is turned, the partition 9 will be rotated through the rotating part 7. When the partition 9 is rotated, the filling cylinder 11 will be moved to one side of the discharge port 4. At this time, the torsion block 14 can be turned. When the torsion block 14 is rotated, the threaded plug 13 will be moved. When the threaded plug 13 is rotated, it will move outward through the threaded connection with the protruding thread 12. When the threaded plug 13 moves to the outside of the filling cylinder 11, the granular contents can be re-injected into the cylinder through the filling cylinder 11, which facilitates the reuse of the container.
[0032] All technical features in this embodiment can be freely combined according to actual needs.
[0033] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. An easy-tear cap for preventing contamination of can contents, the easy-tear cap comprising an easy-tear cap body (1), a sealing film (2), and a pull tab (3), characterized in that, The surface of the easy-tear cap body (1) is connected to a sealing film (2), and the surface of the sealing film (2) is connected to a pull tab (3); the surface of the easy-tear cap body (1) is provided with a discharge port (4), the inner surface of the easy-tear cap body (1) is connected to a sealing ring (5), the surface of the easy-tear cap body (1) is provided with a round hole (6), the inside of the round hole (6) is through a rotating component (7), the end of the rotating component (7) is connected to a knob (8), the other end of the rotating component (7) is connected to a partition (9), and the surface of the partition (9) is provided with a discharge hole (10).
2. The easy-tear cap for preventing contamination of can contents according to claim 1, characterized in that, The sealing ring (5) is made of rubber, and the partition (9) forms a sealing structure with the easy-tear cover body (1) through the sealing ring (5).
3. The easy-tear cap for preventing contamination of can contents according to claim 2, characterized in that, The rotating component (7) and the knob (8) are an integral structure, and the rotating component (7) and the partition (9) are an integral structure.
4. The easy-tear cap for preventing contamination of can contents according to claim 3, characterized in that, The rotating component (7) forms a rotating structure with the easy-tear cover body (1) through the round hole (6).
5. The easy-tear cap for preventing contamination of can contents according to claim 1, characterized in that, A material injection cylinder (11) is connected through the surface of the partition (9). A protruding thread (12) is connected to the inner wall of the material injection cylinder (11). A threaded plug (13) is connected inside the material injection cylinder (11). A torsion block (14) is connected to the end of the threaded plug (13).
6. The easy-tear cap for preventing contamination of can contents according to claim 5, characterized in that, The injection cylinder (11) and the partition (9) are an integral structure.
7. The easy-tear cap for preventing contamination of can contents according to claim 6, characterized in that, The threaded plug (13) and the torsion block (14) are an integral structure, and the threaded plug (13) and the convex thread (12) are connected by a thread.