A high sealability can lid easy to open

Abstract

The utility model discloses an easy to open's high sealing property can, relate to packing technical field, can solve the high sealing performance requirement's can of prior art, the locking force between can cover and jar body is big, and the problem of not easy to open. The utility model embodiment discloses an easy to open's high sealing property can, including can cover, the can cover includes the integrated top plate and side plate, and the bottom of side plate is equipped with the locking ring male for with jar body connection fixed, be equipped with annular air chamber in the top plate, and the area of top plate location annular air chamber bottom is annular elastic area, under the condition that can cover is connected with jar body, and annular elastic area is located jar body mouth along the just above, the can cover still includes the deflation subassembly of top plate top, and the deflation subassembly includes at least one for the conical stab of stabbing into annular air chamber.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to an easy-to-open, highly airtight can lid. Background Technology

[0002] Canned goods typically consist of a lid and a can, and are generally used in applications requiring high sealing performance, such as food packaging. This high degree of airtightness extends shelf life. The lid and can are connected by threads, allowing for easy re-tightening after the initial opening. However, canned packaging demands a high level of sealing performance before the first opening. Currently, there are generally two methods to achieve this. One is to seal the opening with a thin film, which is then torn off after the lid is opened. However, this usually requires additional tools, otherwise, incomplete removal of the film or food contamination may occur. The second method involves increasing the locking force before sealing with a thin film to improve the seal. However, this method requires overcoming greater friction to open, making it more difficult.

[0003] Based on the above background, the inventors have designed an easy-to-open, highly airtight can lid that can solve at least one of the above problems, and hereby submit this application. Utility Model Content

[0004] The purpose of this application is to provide an easy-to-open, highly airtight can lid to solve the problem in the prior art where cans with high sealing performance requirements have a large locking force between the can lid and the can body, making them difficult to open.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution: This application provides an easy-to-open, highly airtight can lid, including a can lid, which includes an integrally formed top plate and a side plate. The bottom of the side plate is provided with a locking ring protrusion for connecting and fixing with the can body. The top plate is provided with an annular air cavity, and the area of ​​the top plate at the bottom of the annular air cavity is an annular elastic zone. When the can lid is connected to the can body, the annular elastic zone is located directly above the rim of the can body. The can lid also includes a venting assembly located on top of the top plate, the venting assembly including at least one conical puncture for inserting into the annular air cavity.

[0006] Optionally, the top of the longitudinal section of the annular air cavity along its radial direction has an arched structure.

[0007] Optionally, the annular air cavity has a reinforced arc-shaped structure on the side of its radial longitudinal section facing the side plate.

[0008] Optionally, the top plate is provided with an annular protrusion; The annular air cavity is located inside the annular protrusion; The venting component is located on the annular protrusion.

[0009] Optionally, the venting assembly further includes a crossbar arranged radially along the annular protrusion, and at least two guide rods arranged vertically on the annular protrusion, with the crossbar and guide rods being movably connected. The conical spike is located at the bottom of the crossbar.

[0010] Optionally, the venting assembly further includes anti-detachment lifting frames at both ends of the crossbar, and a limiting block at the top of the guide rod to prevent the anti-detachment lifting frames from falling off. The anti-detachment lifting frames are slidably connected to the guide rod, and the crossbar is movably connected to the guide rod through the anti-detachment lifting frames. The number of the venting components is set to two; It also includes a handle structure with each end connected to a venting assembly.

[0011] Optionally, the handle structure includes a handle body and two handle connecting seats fixed to both ends of the handle body. The handle connecting seats are fitted onto the crossbar and rotatably connected to it.

[0012] Optionally, the top of the annular protrusion is provided with two inclined surfaces, and the two guide rods of the venting assembly are respectively provided on the two inclined surfaces; The connection point between the handle structure and the venting component is located directly above the inclined surface.

[0013] Optionally, the outer peripheral wall of the side plate is provided with an anti-slip texture structure.

[0014] Beneficial effects of the utility model: This application features an annular air chamber on the top plate, with an annular elastic zone at the bottom. When the locking ring on the side plate is screwed into place, the annular air chamber fills with gas. Consequently, the annular elastic zone at the bottom of the annular air chamber presses against the rim of the can's top, achieving a high-sealing packaging. When opening is required, the gas inside the annular air chamber is released directly using the conical spike of the venting component. This causes deformation of the annular elastic zone, reducing the sealing performance and allowing the can lid to be easily unscrewed. Furthermore, the can lid can be screwed back onto the can for convenient subsequent use.

[0015] Therefore, this application uses an annular air cavity to fill with air, so that the annular elastic area is pressed tightly against the edge of the can, ensuring high sealing performance before the can is opened. When used for the first time, the annular air cavity can be punctured to release air, reducing the sealing performance. This ingenious design facilitates opening and subsequent use, and can effectively solve the problem in the prior art of cans with high sealing performance requirements where the locking force between the can lid and the can body is large and it is difficult to open. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and form part of this application, do not constitute a limitation thereof.

[0017] Figure 1 This is a cross-sectional structural diagram of an embodiment of this application.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a cross-sectional view of the embodiment of this application after it has been installed on the tank.

[0020] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.

[0021] Explanation of reference numerals in the attached drawings: 11-Top plate, 111-Annular elastic zone, 12-Side plate, 121-Locking ring protrusion, 122-Anti-slip texture structure, 13-Annular air cavity, 131-Arch structure, 132-Reinforced arc surface structure, 14-Deflator assembly, 141-Crossbar, 142-Conical spike, 143-Anti-detachment lifting frame, 144-Guide rod, 145-Limiting block, 15-Annular protrusion, 16-Handle structure, 161-Handle body, 162-Handle connecting seat. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this invention / utility model, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 4 As shown, this embodiment provides an easy-to-open, highly airtight can lid, including a can lid, which includes an integrally formed top plate 1 and a side plate 12. The bottom of the side plate 12 is provided with a locking ring protrusion 121 for connecting and fixing with the can body. The top plate 1 is provided with an annular air cavity 13, and the area of ​​the top plate 1 at the bottom of the annular air cavity 13 is an annular elastic area 111. When the can lid is connected to the can body, the annular elastic zone 111 is located directly above the edge of the can body opening; The can lid also includes a venting assembly 14 located on top of the top plate 1. The venting assembly 14 includes at least one conical stab 142 for piercing into the annular air chamber 13.

[0024] In this embodiment, an annular air cavity 13 is provided on the top plate 1, and the bottom of the annular air cavity 13 is an annular elastic area 111. After the locking ring protrusion 121 on the side plate 12 is screwed into place, the annular air cavity 13 is filled with gas. Therefore, the annular elastic area 111 at the bottom of the annular air cavity 13 will press against the opening edge of the top of the can, achieving high-sealing packaging. When it is necessary to open, the gas inside the annular air cavity 13 is released directly by the conical spike 142 of the venting component 14. The annular elastic area 111 deforms, the sealing performance decreases, and the can lid can be easily unscrewed. In subsequent use, the can lid can also be screwed onto the can for convenient subsequent use.

[0025] Therefore, this embodiment invents air into the annular air cavity 13, causing the annular elastic area 111 to press tightly against the edge of the can, ensuring high sealing before the can is opened. When used for the first time, the annular air cavity 13 can be punctured to release air, reducing the sealing performance. This ingenious design facilitates opening and subsequent use, effectively solving the problem in the prior art where cans with high sealing performance requirements have a large locking force between the can lid and the can body, making them difficult to open.

[0026] In this embodiment, the top of the longitudinal section of the annular air cavity 13 along its radial direction is an arched structure 131, which facilitates the conical piercing 142 to pierce the top of the annular air cavity 13 and release the air. In this embodiment, the arched structure 131 is specifically a semi-circular structure. In some embodiments, a triangular structure or other shapes may also be used, which will not be elaborated here.

[0027] In this embodiment, the annular air cavity 13 has a reinforced arc surface structure 132 on the side of its radial longitudinal section facing the side plate 12.

[0028] In this embodiment, the top plate 1 is provided with an annular protrusion 15; The annular air cavity 13 is located inside the annular protrusion 15; The venting component 14 is provided on the annular protrusion 15. By setting the annular protrusion 15, the thickness of the top plate 1 of the can lid is avoided to be too large, thereby reducing the amount of material used in the production of the can lid.

[0029] In this embodiment, the venting assembly 14 further includes a crossbar 141 arranged radially along the annular protrusion 15, and at least two guide rods 144 arranged vertically on the annular protrusion 15, wherein the crossbar 141 and the guide rods 144 are movably connected. The conical spike 142 is located at the bottom of the crossbar 141. When the crossbar 141 is opened, pressing down on it will cause the conical spike 142 to be pressed into the top of the annular air chamber 13, thereby releasing the air.

[0030] In this embodiment, the venting assembly 14 further includes anti-detachment lifting frames 143 disposed at both ends of the crossbar 141, and a limiting block 145 disposed at the top of the guide rod 144 to prevent the anti-detachment lifting frames 143 from falling off. The anti-detachment lifting frames 143 are slidably connected to the guide rod 144, and the crossbar 141 is movably connected to the guide rod 144 through the anti-detachment lifting frames 143. The number of the venting components 14 is set to two; It also includes a handle structure 16 connected to two venting components 14 at both ends. By setting the handle structure 16, the can is easy to carry. The handle structure 16 is connected to the can lid by the venting components 14, which can reduce the structural complexity of the can lid. At the same time, the annular air chamber 13 can be punctured by directly pressing down the handle structure 16.

[0031] In this embodiment, the handle structure 16 includes a handle body 161 and two handle connecting seats 162 fixed at both ends of the handle body 161. The handle connecting seats 162 are fitted onto the crossbar 141 and rotatably connected to it, so that when the handle structure 16 is not in use, it can be folded and placed on top of the can lid to reduce the packaging volume of the can.

[0032] In this embodiment, the top of the annular protrusion 15 is provided with two inclined surfaces, and the two guide rods 144 of the venting assembly 14 are respectively provided on the two inclined surfaces; The connection point between the handle structure 16 and the venting component 14 is located directly above the inclined surface. By setting the inclined surface, the distance between the crossbar 141 and the top of the annular protrusion of the top cover is relatively small, which reduces the space occupied by the venting component 14 and reduces the volume of the can lid.

[0033] In this embodiment, the outer peripheral wall of the side plate 12 is provided with an anti-slip texture structure 122 to facilitate the screwing operation of the can lid.

[0034] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. An easy-to-open, high-sealing can lid, comprising a can lid, the can lid including an integrally formed top plate (1) and a side plate (12), the bottom of the side plate (12) being provided with a locking ring protrusion (121) for connection and fixation with the can body, characterized in that, The top plate (1) is provided with an annular air cavity (13), and the area of ​​the top plate (1) at the bottom of the annular air cavity (13) is an annular elastic zone (111). When the can lid is connected to the can body, the annular elastic zone (111) is located directly above the can body opening; The can lid also includes a venting assembly (14) located on top of the top plate (1), the venting assembly (14) including at least one conical stab (142) for piercing into the annular air chamber (13).

2. The easy-to-open, high-sealing can lid according to claim 1, characterized in that, The top of the longitudinal section of the annular air cavity (13) along its radial direction is an arched structure (131).

3. The easy-to-open, high-sealing can lid according to claim 1, characterized in that, The annular air cavity (13) has a reinforced arc surface structure (132) on the side of its radial longitudinal section facing the side plate (12).

4. The easy-to-open, high-sealing can lid according to claim 1, characterized in that, The top plate (1) is provided with an annular protrusion (15); The annular air cavity (13) is located inside the annular protrusion (15); The venting component (14) is located on the annular protrusion (15).

5. The easy-to-open, high-sealing can lid according to claim 4, characterized in that, The venting assembly (14) further includes a crossbar (141) arranged radially along the annular protrusion (15), and at least two guide rods (144) arranged vertically on the annular protrusion (15), with the crossbar (141) and the guide rods (144) being movably connected. The conical spike (142) is located at the bottom of the crossbar (141).

6. The easy-to-open, high-sealing can lid according to claim 5, characterized in that, The venting assembly (14) further includes anti-detachment lifting frames (143) at both ends of the crossbar (141) and a limiting block (145) at the top of the guide rod (144) to prevent the anti-detachment lifting frames (143) from falling off. The anti-detachment lifting frames (143) are slidably connected to the guide rod (144), and the crossbar (141) is movably connected to the guide rod (144) through the anti-detachment lifting frames (143). The number of the venting components (14) is set to two; It also includes a handle structure (16) that is connected at both ends to two venting components (14).

7. The easy-to-open, high-sealing can lid according to claim 6, characterized in that, The handle structure (16) includes a handle body (161) and two handle connecting seats (162) fixed at both ends of the handle body (161). The handle connecting seats (162) are fitted onto the crossbar (141) and rotatably connected to it.

8. The easy-to-open, high-sealing can lid according to claim 6, characterized in that, The top of the annular protrusion (15) is provided with two inclined surfaces, and the two guide rods (144) of the venting assembly (14) are respectively provided on the two inclined surfaces; The connection between the handle structure (16) and the venting assembly (14) is located directly above the inclined surface.

9. The easy-to-open, high-sealing can lid according to claim 1, characterized in that, The outer peripheral wall of the side plate (12) is provided with an anti-slip textured structure (122).

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