A sealed inner cap of a zip structure

Abstract

The utility model provides a seal inner cover of easy -open structure belongs to the sealed technical field of packing container, is used for solving the problem of existing seal inner cover opening laborsome. The inner cover includes easy -open cover main part, and the front surface is equipped with the inner concave round surface with the pull ring, and the back is equipped with the inner concave ring concentric with the inner concave round surface. The inner concave ring range is equipped with the easy -tear line that is communicated by the tangency of three -number circular arc groove, first circular arc groove and second circular arc groove. The second circular arc groove range is equipped with the shallow depth bending groove, and the pull ring is located in the closed area surrounded by both. When using, buckle the pull ring and make the cover body bend along the bending groove and form the small mouth, and then expand and tear along each circular arc groove until the inner concave ring, realize the opening of the labor -saving. The structure guides the tearing path by stages, reduces the opening strength, improves the opening reliability.

Description

Technical Field

[0001] This utility model relates to the field of packaging container sealing technology, and in particular to a sealing inner cap with an easy-pull structure. Background Technology

[0002] Most existing packaging container caps use a pull-ring mechanism for opening. These caps typically have a ring-shaped groove on the back as a tear path. To open the cap, the user needs to apply considerable force to tear the cap along the groove in one go. Because the tear path is long and the initial tear requires overcoming the overall strength of the material, the opening process is laborious, affecting the user experience and sealing security. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where the cover is difficult to tear open, and to propose an easy-pull sealing inner cover.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A retractable sealing inner cover includes a retractable cover body, the front of which has a concave circular surface, and a pull ring is provided within the range of the concave circular surface;

[0006] The back of the easy-open cover body is provided with a concave ring, which is located within the range of the concave circular surface and is concentric with the concave circular surface;

[0007] The back of the easy-open cover body is also provided with an easy-tear area defined by the concave ring, and the easy-tear area is provided with grooves to guide the tearing path and make the cover easy to open.

[0008] In one possible design, the groove pattern includes a third circular arc groove, a first circular arc groove, and a second circular arc groove;

[0009] The first circular arc groove is tangent to and connected to the second circular arc groove;

[0010] The third circular arc groove is tangent to and connected to the second circular arc groove through an inner concave arc, and one end of the third circular arc groove is connected to the inner concave ring.

[0011] The pull ring is located within the area of ​​the second arc groove.

[0012] In one possible design, the concave ring, the third arc groove, the first arc groove, and the second arc groove together constitute the easy-tear texture.

[0013] In one possible design, the back of the easy-open cover body is also provided with a bending groove, which is located within the range of the second arc groove, and its two ends are connected to the second arc groove.

[0014] The pull ring is located within the closed area formed by the second arc groove and the bending groove.

[0015] In one possible design, the inner depth of the bending groove is less than the inner depth of the second arc groove, so that the pull ring can be bent along it to form an initial opening when it is fastened.

[0016] In one possible design, the third circular groove, the first circular groove, and the second circular groove have the same depth to ensure a consistent tear path.

[0017] In one possible design, the edge of the easy-open lid body is provided with an integrally formed outer ring for stamping and sealing connection with the can port.

[0018] In this application, during actual use, the user fastens the pull ring, causing the part where the pull ring connects to the main body of the easy-open cover to crack along the texture of the second arc groove, and bend inward along the bending groove to form a small opening. Then the user pulls the pull ring, causing it to tear open along the third arc groove and the first arc groove through the second arc groove, thus extending into the area of ​​the inner concave ring, and then lifting it open completely.

[0019] In this utility model, the easy-open sealing inner cover has an easy-tear texture formed by a concave ring and multiple arc grooves on the back of the inner cover, which can guide the user's tearing path when opening, so that it can be opened in a specified direction.

[0020] In this utility model, the easy-pull sealing inner cover, through the shallow depth structure of bending and easy-tear texture path, can ensure that when opening, the pull ring is easy to fasten and form a bend, and then it can be pulled to lift and open the entire cover.

[0021] In this invention, when in use, the user can create a notch in the cover by pulling the ring, and then extend the shear force of the notch to the part of the inner cover that needs to be opened. By subdividing the area to be opened, it is easier to tear the cover open. Attached Figure Description

[0022] Figure 1 This is a front structural diagram of a sealable inner cover with an easy-open structure proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the left rear view of a sealing inner cover with an easy-pull structure proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the right side view of the back of a sealing inner cover with an easy-pull structure proposed in this utility model.

[0025] In the diagram: 1. Easy-open cover body; 2. Concave circular surface; 3. Pull ring; 4. Concave ring; 5. No. 3 arc groove; 6. No. 1 arc groove; 7. No. 2 arc groove; 8. Bending groove; 9. Outer ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In one embodiment: Reference Figure 1 A sealing inner cap for sealing packaging containers such as metal cans and plastic cans, comprising: a circular thin sheet structure easy-open cap body 1, with a concave circular surface 2 in the center of its front side, and a pull ring 3 fixedly installed within the concave circular surface 2. One end of the pull ring 3 is connected to the easy-open cap body 1, and the user can apply a pulling force by pulling the pull ring 3.

[0028] refer to Figure 2-3 The back of the easy-open cover body 1 has a concave ring 4 within the concave circular surface 2, and the concave ring 4 is concentrically arranged with the concave circular surface 2. Within the concave ring 4, there are also three arc-shaped grooves: a first arc groove 6, a second arc groove 7, and a third arc groove 5. The first arc groove 6 and the second arc groove 7 are tangentially connected and interconnected. The third arc groove 5 and the second arc groove 7 are tangentially connected via concave arcs and are also interconnected. One end of the third arc groove 5 is connected to the concave ring 4. The pull ring 3 is located within the inner area of ​​the second arc groove 7.

[0029] The concave ring 4, the third arc groove 5, the first arc groove 6, and the second arc groove 7 together form an easy-tear texture, which is used to guide the tearing path and control the tearing sequence and range.

[0030] A bending groove 8 is also provided within the inner range of the second arc groove 7, with both ends of the bending groove 8 connected to the second arc groove 7. The pull ring 3 is located within the closed range formed by the second arc groove 7 and the bending groove 8. The inner depth of the bending groove 8 is less than the inner depth of the second arc groove 7, while the inner depths of the third arc groove 5, the first arc groove 6, and the second arc groove 7 are the same.

[0031] When in use, the user pulls the pull ring 3, and the connection between the pull ring 3 and the main body 1 of the easy-open cover splits along the texture of the second arc groove 7, and bends inward at the bending groove 8 to form an initial opening. Then, the user continues to pull the pull ring 3, and the tearing path extends along the second arc groove 7 to the third arc groove 5 and the first arc groove 6, eventually spreading to the range of the inner concave ring 4, thus opening it.

[0032] By tearing a notch in the lid, the shear force of the notch extends to the part of the lid that needs to be lifted, thus subdividing the area to be lifted and making it easier to tear open.

[0033] This application can be used in the field of sealing packaging containers, or in other fields applicable to this application.

[0034] In another embodiment: Reference Figure 2 A type of easy-open sealing inner cap is applied to the field of packaging container sealing. The edge of the easy-open cap body 1 is provided with an integrally formed outer ring 9. The outer ring 9 is sealed to the can port through a stamping process to ensure the sealing performance and mechanical strength of the overall structure.

[0035] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing inner cover with an easy-open structure, characterized in that, include: Easy-open cover body (1), the front of the easy-open cover body (1) is provided with a concave circular surface (2), and a pull ring (3) is provided within the range of the concave circular surface (2). The back of the easy-open cover body (1) is provided with a concave ring (4), which is located within the range of the concave circular surface (2) and is concentric with the concave circular surface (2); The back of the easy-open cover body (1) is also provided with an easy-tear area defined by the concave ring (4), and the easy-tear area is provided with grooves for guiding the tearing path and making the cover easy to open.

2. The easy-open sealing inner cover according to claim 1, characterized in that, The groove pattern includes a third arc groove (5), a first arc groove (6), and a second arc groove (7). The first circular arc groove (6) is tangent to and connected with the second circular arc groove (7); The third circular arc groove (5) and the second circular arc groove (7) are tangent to each other and connected by an inner concave circular arc, and one end of the third circular arc groove (5) is connected to the inner concave ring (4); The pull ring (3) is located within the range of the second arc groove (7).

3. The easy-open sealing inner cover according to claim 2, characterized in that, The concave ring (4), the third arc groove (5), the first arc groove (6), and the second arc groove (7) together form an easy-tear texture.

4. The easy-open sealing inner cover according to claim 3, characterized in that, The back of the easy-open cover body (1) is also provided with a bending groove (8), which is located within the range of the second arc groove (7), and its two ends are connected to the second arc groove (7). The pull ring (3) is located in the closed area formed by the second arc groove (7) and the bending groove (8).

5. The easy-open sealing inner cover according to claim 4, characterized in that, The inner depth of the bending groove (8) is less than the inner depth of the second arc groove (7) so that the pull ring (3) can be bent along it to form an initial opening when it is fastened.

6. The easy-open sealing inner cover according to claim 5, characterized in that, The three circular arc grooves (5), the one circular arc groove (6), and the two circular arc grooves (7) have the same concave depth to ensure that the tearing path is continuous and consistent.

7. A sealing inner cover with an easy-open structure according to any one of claims 2 to 6, characterized in that, The edge of the easy-open lid body (1) is provided with an integrally formed outer ring (9) for stamping and sealing connection with the can port.

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