Can lid
The can lid design leverages a lever principle for easy opening and includes a sliding sealing packing and optional spoon, addressing the difficulty of manual lid opening and enabling can stacking.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- FAR EAST GLASS PRODUCTS CO LTD
- Filing Date
- 2026-03-17
- Publication Date
- 2026-05-19
AI Technical Summary
Existing can lids are difficult to open, especially for individuals with weak strength, and manual opening poses a risk of damage.
A can lid design featuring a lid body with an engaging end and a pressing end, utilizing the principle of leverage to easily open the lid by pressing downward, accompanied by a sealing packing that slides upward upon engagement, and optionally includes a dispensing spoon and a mounting base for stacking.
The design allows for easy opening of can lids without requiring much force, reduces the risk of damage, and enables stacking of multiple cans with a stand.
Smart Images

Figure 0003255856000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of can lids, and more specifically, to can lids.
Background Art
[0002] With the development of society, storage cans have become common items that can be seen everywhere in people's lives. A storage can includes a can body and a can lid. In recent years, many improvements have been made to the appearance of the can body, but there have been relatively few improvements to the can lid.
[0003] In order to effectively store canned food for a long time, it is necessary to ensure a good sealing effect. After the canned food is sealed and undergoes high-temperature sterilization and cooling processes, the air pressure inside the can becomes lower than the external air pressure, and due to the pressure difference, the can lid is strongly adsorbed to the can mouth of the can body. Currently, the can lid is mainly opened manually, which is difficult for people with weak strength, such as the elderly and children. Furthermore, when using a can opener, there is a risk of damaging the can lid.
[0004] Therefore, how to provide a can lid that is reasonably designed, easy to use, and easy to open is an urgent problem that those skilled in the art should solve.
Summary of the Invention
Problems to be Solved by the Invention
[0005] In view of this, an object of the present invention is to provide a can lid that solves the technical problem of being difficult to open the can lid after sealing.
Means for Solving the Problems
[0006] To achieve the above object, the present invention adopts the following technical solutions.
[0007] A can lid for sealing the can mouth of a can body, a lid body that is an elongated case with an open upper end, A sealing connecting ring is fixed to the lower end of the lid body and inserted into the can body, A sealing packing is attached to the outer annular wall of the sealing connecting ring and is slidably connected to the inner wall of the can body in a sealed state, One end of the lid body is an engaging end, the bottom surface of which abuts against the edge of the can opening, and the other end of the lid body is a pressing end, the bottom surface of which is close to the pressing end is inclined away from the can body, thereby allowing the engaging end to be pried open from the can opening by pressing the pressing end downward until its bottom inclined surface abuts against the edge of the can opening.
[0008] The present invention discloses a can lid based on the above technical solution. When opening this can lid, the pressing end is pressed downward. When the bottom slope of the lid body contacts the edge of the can opening, the engaging end is lifted. Due to the upward displacement of the engaging end, the end of the corresponding seal packing is folded upward from the can body, and the can opening is finally opened. The can lid of this invention is rationally designed, easy to use, and based on the lever principle, the can opening can be opened without requiring much force.
[0009] Preferably, the angle between the bottom slope of the lid body adjacent to the pressing end and the horizontal direction is α, and the magnitude of the angle α is 25° to 30°.
[0010] Preferably, the distance between the edge of the lid body and the edge of the sealing connecting ring is 1 cm to 1.5 cm.
[0011] Preferably, two annular limiting plates are fixed to the outer wall of the sealing connecting ring, spaced apart vertically, and the inner ring of the sealing packing is restrictedly engaged between the two annular limiting plates.
[0012] Preferably, the outer ring of the sealing packing transitions smoothly in an arc shape and is slidably connected to the inner wall of the can body in a sealed state.
[0013] Preferably, the device further includes a dispensing spoon located inside the sealing connecting ring, with engaging protrusions fixed along both ends in the front-to-back direction, wherein two L-shaped engaging plates corresponding to the engaging protrusions are fixed to the bottom of the lid body, and each of the engaging protrusions is restrictedly engaged within the corresponding L-shaped engaging plate.
[0014] Preferably, a horizontally positioned support is fixed to the upper end of the lid body, and the support can support other can bodies. [Effects of the Invention]
[0015] As can be seen from the above technical solutions, compared to the prior art, this invention discloses a can lid, and its main effects and advantages are as follows.
[0016] 1. This invention, based on the principle of leverage, allows for easier and more convenient opening of can lids without damaging them.
[0017] 2. This invention allows the scooping spoon to be quickly removed from the bottom of the lid in order to scoop out the material from the can body.
[0018] 3. Since other can bodies can be placed on the stand, multiple can bodies sealed with this can lid can be stacked sequentially from bottom to top by using the stand. [Brief explanation of the drawing]
[0019] To more clearly explain embodiments of the present invention or technical solutions in the prior art, the drawings necessary for describing the embodiments or prior art will be briefly described below. However, the drawings in the following description are merely embodiments of the present invention, and it will be obvious to those skilled in the art that other drawings can be obtained based on these drawings without any creative effort. [Figure 1] This is a schematic diagram showing the overall structure of a can lid according to the present invention. [Figure 2]This is a schematic diagram when the can lid according to the present invention is assembled to the can body and in a closed state. [Figure 3] This is a schematic diagram when the can lid according to the present invention is assembled to the can body and in an open state. [Figure 4] This is a front view of the can lid according to the present invention. [Figure 5] This is a bottom view of the can lid according to the present invention. [Figure 6] This is an exploded view of the can lid according to the present invention. [Figure 7] This is an enlarged schematic diagram of the structure of part A in FIG. 6.
Embodiments for Carrying out the Invention
[0020] Hereinafter, while referring to the drawings of the embodiments of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described. Of course, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, any other embodiments obtained by those skilled in the art without the need for inventive labor all belong to the protection scope of the present invention.
[0021] In the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is for facilitating the description of the present invention and simplifying the description, and does not indicate or imply that the related device or element must have a specific orientation, be configured or operate in a specific orientation, and thus should not be construed as limiting the present invention.
[0022] In this invention, unless explicitly defined and limited, terms such as "attachment," "connection," "bonding," and "fixing" should be understood in a broad sense, and may refer to, for example, a fixed connection, a removable connection, or an integral connection. They may refer to a mechanical connection or an electrical connection. They may refer to a direct connection, an indirect connection via an intermediate medium, or an internal communication between two elements or an interaction relationship between two elements. The specific meanings of these terms in this invention can be understood by those skilled in the art depending on the specific circumstances.
[0023] Referring to Figures 1 to 7, the can lid according to an embodiment of the present invention is used to seal the mouth of the can body 10 and includes a lid body 1, a sealing connecting ring 2, and a sealing packing 3. The lid body 1 is an elongated case with an open top. The sealing connecting ring 2 is fixed to the bottom end of the lid body 1 and inserted into the can body 10. The sealing packing 3 is attached to the outer annular wall of the sealing connecting ring 2 and is slidably connected to the inner wall of the can body 10 in a sealed state. One end of the lid body 1 is an engaging end, the bottom surface of which abuts against the edge of the can mouth, and the other end of the lid body 1 is a pressing end, the bottom surface of which is close to the pressing end is inclined away from the can body 10, thereby allowing the engaging end to be pried open from the can mouth by pressing the pressing end downward until its bottom inclined surface abuts against the edge of the can mouth.
[0024] In the can lid according to this invention, when sealing the mouth of the can body 10, the bottom surface of the engaging end abuts and adheres tightly to the edge of the can mouth, while the bottom surface of the pressing end does not contact the can mouth. When opening the mouth of the can body 10, the pressing end is pressed downward until the bottom slope of the lid body 1 abuts the edge of the can mouth, thereby lifting the engaging end, and the end of the seal packing 3 corresponding to the engaging end is folded upward from the can body 10, thereby opening the can mouth. This can lid can open the can mouth without requiring much force, based on the principle of leverage.
[0025] The lid body 1 of this device can be designed in rectangular, circular, square, rhombus, or other shapes to match the contour of the can opening, and this can lid can be applied to various everyday containers such as cans, bottles, and boxes.
[0026] Specifically, the angle between the bottom slope adjacent to the pressing end of the lid body 1 and the horizontal direction is α, and the magnitude of the angle α is 25° to 30°.
[0027] Specifically, the distance between the edge of the lid body 1 and the edge of the sealing connecting ring 2 is 1 cm to 1.5 cm.
[0028] In some specific examples, two annular limiting plates 21 are fixed to the outer wall of the sealing connecting ring 2, spaced apart vertically, and the inner ring of the sealing packing 3 is restrictedly engaged between the two annular limiting plates 21.
[0029] Since the seal packing 3 is removably attached to the outer wall of the sealing connecting ring 2 by two annular limiting plates 21, if the seal packing 3 is damaged or becomes severely worn and its sealing effect weakens, the seal packing 3 can be removed and replaced with a new one.
[0030] Specifically, the outer ring of the seal packing 3 transitions smoothly in an arc shape and is slidably connected to the inner wall of the can body 10 in a sealed state.
[0031] In some other specific examples, a can lid further includes a dispensing spoon 4 located inside a sealing connecting ring 2 and having engaging protrusions 41 fixed along both ends in the front-to-back direction, wherein two L-shaped engaging plates 11 corresponding to the engaging protrusions 41 are fixed to the bottom of the lid body 1, and each engaging protrusion 41 is restrictedly engaged within the corresponding L-shaped engaging plate 11.
[0032] The scooping spoon 4 is detachably connected to the bottom of the lid body 1 by engaging protrusions 41 and L-shaped engaging plates 11, and can be quickly removed by moving along a direction perpendicular to the length of the scooping spoon 4, and is used to scoop out material from the can body 10.
[0033] Specifically, a horizontally positioned mounting base 5 is fixed to the upper end of the lid body 1, and the mounting base 5 can support other can bodies 10.
[0034] By using the mounting base 5, it is possible to stack multiple can bodies 10, each with a can lid attached, from bottom to top.
[0035] Based on the above description of the disclosed embodiments, those skilled in the art can implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to other embodiments without departing from the spirit or scope of the present invention. Accordingly, the present invention is not limited to these embodiments shown herein, and the broadest scope consistent with the principles and novel features disclosed herein should be recognized. [Explanation of Symbols]
[0036] 1 Lid body 2 sealing connecting rings 3. Seal packing 4. Removal spoon 5. Mounting platform 10 cans 11 L-shaped engagement plate 21 Ring-shaped restriction board 41 Engagement convex plate
Claims
1. A can lid for sealing the opening of the can body (10), The lid body (1) is a long, narrow case with an open top, A sealing connecting ring (2) is fixed to the lower end of the lid body (1) and inserted into the can body (10), The sealing packing (3) is attached to the outer annular wall of the sealing connecting ring (2) and is slidably connected to the inner wall of the can body (10) in a sealed state, A can lid characterized in that one end of the lid body (1) is an engaging end, the bottom surface of the engaging end abuts against the edge of the can mouth, the other end of the lid body (1) is a pressing end, the bottom surface of the lid body (1) adjacent to the pressing end is inclined away from the can body (10), and so that the engaging end can be pried open from the can mouth by pressing the pressing end downward until its bottom inclined surface abuts against the edge of the can mouth.
2. The can lid according to claim 1, characterized in that the angle between the bottom slope of the lid body (1) adjacent to the pressing end and the horizontal direction is 25° to 30°.
3. The can lid according to claim 1, characterized in that the distance between the edge of the lid body (1) and the edge of the sealing connecting ring (2) is 1 cm to 1.5 cm.
4. The can lid according to claim 1, characterized in that two annular limiting plates (21) are fixed to the outer wall of the sealing connecting ring (2) and are spaced apart vertically, and the inner ring of the sealing packing (3) is restrictedly engaged between the two annular limiting plates (21).
5. The can lid according to claim 4, characterized in that the outer ring of the seal packing (3) transitions smoothly in an arc shape and is slidably connected to the inner wall of the can body (10) in a sealed state.
6. The can lid according to claim 1, further comprising a dispensing spoon (4) located inside the sealing connecting ring (2) and having engaging protrusions (41) fixed along both ends in the front-rear direction, wherein two L-shaped engaging plates (11) corresponding to the engaging protrusions (41) are fixed to the bottom of the lid body (1), and each of the engaging protrusions (41) is restrictedly engaged within the corresponding L-shaped engaging plate (11).
7. A can lid according to claim 1, characterized in that a horizontally positioned mounting base (5) is fixed to the upper end of the lid body (1), and the mounting base (5) can support other can bodies (10).