Sealing aluminum foil lifting gasket convenient to open

Abstract

The sealing aluminum foil lifting gasket convenient to open comprises a backing layer and a sealing layer, the backing layer is attached to the upper surface of the sealing layer, the backing layer comprises an outer ring part and a lifting part, the lifting part can be lifted upwards to open the sealing layer, the lifting part comprises a pull piece and a pull lug, a hollow area is arranged between the pull lug and the pull piece, and the outer ring part is attached to the outer ring part. The root portion of the pull lug is integrally connected with the inner side wall of the pull piece, and the outer side boundary of the pull piece is connected with the outer ring portion through a cutting line. Through the design of the pull lug and the hollow area, sufficient operation space is reserved, a sharp tool is not needed, and opening can be easily achieved with one hand; the pulling lug and the pulling piece are integrally connected, pulling force transmission is accurate, a cutting line is matched, the gasket is guided to be instantly separated along a preset path, blockage, content spilling or irregular breakage of aluminum foil are avoided, and the whole crowd can conveniently operate; after the bottle is opened, the outer ring part is still fixedly welded with the bottle opening, air and moisture are effectively prevented from invading, and the bottle is suitable for products such as food, medicine and lubricating oil which have strict requirements for the storage environment.

Description

Technical Field

[0001] This invention relates to the field of sealing gaskets, and in particular to a sealing aluminum foil lift gasket that is easy to open. Background Technology

[0002] In existing technologies, sealing packaging is a crucial step in ensuring the safety of product storage and transportation, as well as its stable use. It is widely used in various fields such as chips, food, pharmaceuticals, and cosmetics. Sealing is particularly common for plastic containers such as medicine bottles, oil bottles, and milk powder cans, as well as various packaging containers made of plastic, paper, aluminum, etc.

[0003] After filling, these types of containers often require sealing gaskets or heat-sealed aluminum foil sheets at the bottle mouth or opening edge to achieve a seal and prevent the contents from getting damp, contaminated, or deteriorating. However, existing sealing structures have many drawbacks. On the one hand, opening the seal is inconvenient. Whether it is a sealing gasket or an aluminum foil sheet, users often need to use sharp tools, fingernails to pry it open, or forcefully puncture it, or spend a lot of effort to puncture the sealing gasket to complete the opening operation. This operation is cumbersome and poses certain safety hazards. At the same time, improper opening methods may cause the contents to spill out, affecting the user experience. On the other hand, when the contents of the container are not used up at once, the original sealing gasket is damaged when the user closes the lid again, significantly reducing the sealing effect. This makes it unable to effectively prevent the intrusion of external air, moisture, and other impurities, easily leading to oxidation, dampness, and spoilage of the contents, affecting product quality and safety. This problem is particularly prominent for products with high requirements for storage environment, such as pharmaceuticals, food, and lubricants. Existing technologies often alleviate the secondary sealing problem by inserting additional foam gaskets, but this increases the process and cost, failing to fundamentally solve the defect and making it difficult to meet usage needs.

[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Summary of the Invention

[0005] The purpose of this invention is to provide an easy-to-open sealing aluminum foil lifting pad, which achieves convenient opening, safe use, and reliable secondary sealing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An easy-to-open sealing aluminum foil lifting pad includes a backing layer and a sealing layer. The backing layer is attached to the upper surface of the sealing layer. The backing layer includes an outer ring portion and a lifting portion disposed inside the outer ring portion. The lifting portion can be pulled upward to open the sealing layer. The lifting portion includes a pull tab and a pull lug disposed inside the pull tab. A hollow area is provided between the pull lug and the pull tab to facilitate the finger lifting of the pull lug. The root of the pull lug is integrally connected to the inner side of the pull tab. The outer boundary of the pull tab is connected to the outer ring portion through a cutting line.

[0007] As a preferred embodiment of the present invention, the sealing layer is provided with the cutting line corresponding to the inner edge of the outer ring portion.

[0008] As a preferred embodiment of the present invention, the pull tab is provided with a pull tab notch, and the root portion of the pull lug is respectively connected to the two ends of the pull tab located at the pull tab notch; Alternatively, the pull tab may have a pull tab notch, the pull lug may have a lifting hole in the middle, the pull lug may have a pull lug notch, and the two parts of the pull lug located at the pull lug notch may be connected one-to-one with the two ends of the pull tab located at the pull tab notch, so that both the pull tab notch and the pull lug notch are connected to the lifting hole.

[0009] As a preferred embodiment of the present invention, the number of notches on the pull tab is at least one, and the edges are arc-shaped.

[0010] As a preferred embodiment of the present invention, at least one inwardly tiltable support piece is uniformly distributed along the circumference of the lifting hole, and the root of the support piece is connected to the inner sidewall of the pull lug.

[0011] As a preferred embodiment of the present invention, the boundary where the outer wall of the pull lug connects to the inner wall of the pull tab is provided with the cutting line; Alternatively, the boundary where the pull lug is located on the outer side of the pull lug notch and the pull tab is located on the inner side of the pull tab notch is provided with a flared cutting line to facilitate tearing.

[0012] As a preferred embodiment of the present invention, the cutting line and the flared cutting line are annular discontinuous cuts, bridged by multiple connection points, and their thickness is less than the thickness of the backing layer.

[0013] As a preferred embodiment of the present invention, the outer ring portion is provided with a plurality of protrusions evenly distributed along its outer periphery, each of the protrusions contacting the inner periphery of the matching container cap, and the diameter of the outer ring portion is equivalent to the outer diameter of the matching container mouth.

[0014] As a preferred embodiment of the present invention, the inner periphery of the outer ring and the outer periphery of the pull tab are both wavy, with the diameter of the trough being equivalent to the inner diameter of the corresponding matching bottle opening and the diameter of the peak being smaller than the inner diameter of the corresponding matching bottle opening.

[0015] As a preferred embodiment of the present invention, the hollowed-out area is arc-shaped or U-shaped, and the edge of the hollowed-out area has a smooth transition structure; The end of the pull tab away from the pull piece is provided with an anti-slip protrusion, and the anti-slip protrusion is evenly distributed along the width direction of the pull tab. The sealing layer is made of aluminum foil, and the backing layer is a heat-resistant and corrosion-resistant polymer film layer.

[0016] By adopting the aforementioned design scheme, the beneficial effects of the present invention are: 1. The pull tab design and hollowed-out area provide ample operating space, allowing for easy one-handed opening without the need for sharp tools; the pull tab and pull plate are connected as one piece, ensuring precise force transmission. Combined with the intermittent ring-shaped cutting line, the guide pad is instantly separated along the preset path, preventing jamming, spillage of contents, or irregular breakage of the aluminum foil, making it convenient for all people to operate.

[0017] 2. After opening, the outer ring remains fixedly welded to the bottle mouth, and the PE foam material at the top fits tightly when the cap is replaced, effectively preventing air and moisture from entering. This fundamentally solves the problem of sealing failure after opening traditional gaskets, and prevents the remaining contents from oxidizing, getting damp, or deteriorating. It is suitable for products such as food, medicine, and lubricating oil that have strict requirements for storage environment.

[0018] 3. The backing layer is a temperature- and corrosion-resistant polymer film, and the sealing layer is made of aluminum foil. It combines sealing and barrier properties with structural rigidity. There are no problems such as pull tab detachment or pull tab deformation during transportation and storage. It can be adapted to various containers such as plastic bottles, glass bottles, and metal cans, and is compatible with different filling scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the layered structure in cross-section of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 4 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 5 This is another structural schematic diagram of Embodiment 3 of the present invention; Figure 6 This is another structural schematic diagram of Embodiment 3 of the present invention; Figure 7 This is another structural schematic diagram of Embodiment 3 of the present invention; Figure 8 This is a schematic diagram of the structure of Embodiment 4 of the present invention; Figure 9 This is a schematic diagram of the structure of Embodiment 5 of the present invention; Figure 10 This is a schematic diagram of the structure of Embodiment Six of the present invention; Figure 11 This is a schematic diagram of the structure of Embodiment Seven of the present invention; Figure 12 This is a schematic diagram of the usage state of the outer ring and the matching container in the prior art of Embodiment 7 of the present invention; Figure 13 This is a schematic diagram showing the usage state of Embodiment 7 of the present invention and its matching container; In the diagram: backing layer 1, outer ring 11, protrusion 111, lifting part 12, pull tab 121, trough 1211, crest 1212, pull tab notch 122, pull ear 123, pull ear notch 124, hollow area 125, lifting hole 126, support piece 127, channel 128, sealing layer 2, cutting line 31, flared cutting line 32, container mouth 4, PET film 51, PE foam board 52, adhesive layer 53, aluminum foil film 54. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The lifting pad of the present invention is suitable for round, oval, triangular, double-compartment, multi-compartment bottles, and other irregularly shaped plastic bottles / jars, glass bottles / jars, and metal bottles / jars, and is designed with a multi-layer structure.

[0022] Example 1: Refer to Figures 1 to 2 An easy-to-open sealing aluminum foil pull-out pad includes a backing layer 1 and a sealing layer 2, with the backing layer 1 attached to the upper surface of the sealing layer 2. Preferably, the backing layer 1 is a temperature-resistant and corrosion-resistant polymer film layer, and the sealing layer 2 is made of aluminum foil, combining sealing and barrier properties with easy-to-tear characteristics. Specifically, the backing layer 1 includes a PET film 51 and a PE foam board 52, with the PET film 51 laminated on the upper and lower surfaces of the PE foam board 52. The PET film 51 disposed on the lower surface of the PE foam board 52 is laminated to the upper surface of the sealing layer 2 through an adhesive layer 53. In this embodiment, the sealing layer 2 includes an aluminum foil film 54 and a PET film 51 disposed on the lower surface of the aluminum foil film 51.

[0023] The backing layer 1 includes an outer ring portion 11 and a lifting portion 12 disposed inside the outer ring portion 11. The lifting portion 12 can be pulled upward to open the sealing layer 2. The lifting portion 12 includes a pull tab 121 and a pull lug 123 disposed inside the pull tab 121. A hollow area 125 is provided between the pull lug 123 and the pull tab 121 to facilitate pulling the pull lug 123 with fingers. Preferably, the hollow area 125 is arc-shaped (see reference). Figure 11 and Figure 13 ) or U-shaped (reference) Figure 1 , Figures 3 to 10 The edges of the hollowed-out area 125 have a smooth transition structure, making it easy for fingers to reach in and pull the pull tab 123.

[0024] The root of the pull tab 123 is integrally connected to the inner wall of the pull tab 121, and a cutting line 31 is provided at the boundary where they connect; the outer boundary of the pull tab 121 is also connected to the outer ring portion 11 through the cutting line 31. It should be noted that the cutting line 31 in this embodiment is a ring-shaped discontinuous cut, formed by bridging multiple connection points, and its thickness is less than the thickness of the backing layer 1, which can guide the tearing path and ensure smooth opening. Of course, the cutting line 31 in this embodiment is not limited to the above structure, and various commercially available easy-tear cutting lines can also be used, which will not be elaborated here.

[0025] As a preferred embodiment of the present invention, the sealing layer 2 is provided with the same cutting line 31 corresponding to the inner edge of the outer ring portion 11. This design can further guide the tearing path and ensure smooth opening.

[0026] As a preferred embodiment of the present invention, the end of the pull tab 123 away from the pull piece 121 is provided with an anti-slip protrusion (not shown in the figure). The anti-slip protrusion is evenly distributed along the width direction of the pull tab 123 to improve the grip stability when pulling.

[0027] The assembly and opening process of this embodiment is as follows: After the lifting pad of this embodiment is assembled with the matching container cap (not shown in the figure), it is then assembled and sealed with the matching container mouth 4. The lifting pad of this embodiment is fixedly fused to the container mouth 4 and keeps it in a close fit. When opening, the pull tab 123 can be directly pried up, so that the pull tab 123 is lifted along the Z-axis direction, and then pulled upward along the Z-axis in the opening indication direction. The pull tab 121 drives the sealing layer 2 to separate instantly to both sides along the cutting line 31. The area connected by the pull tab 123 is separated from the fixed area of ​​the container mouth 4, so that the matching container is opened.

[0028] Traditional gasket products cannot be resealed after use. However, in this embodiment, the outer ring 11 of the pull-up gasket will be fixedly welded to the bottle mouth 4 after use. When the product needs to be used again, the bottle cap can be put back on for resealing. This is because the top of the fixed area between the outer ring 11 and the bottle mouth 4 and the end face of the bottle cap is made of PE foam board 52 material, which can effectively and well seal the seal.

[0029] By adopting the aforementioned design scheme, the beneficial effects of the present invention are: 1. With the design of the pull ear 123 and the hollow area 125 providing ample operating space, it can be easily opened with one hand without the need for sharp tools; the pull ear 123 is integrated with the pull tab 121, and the pulling force is accurately transmitted. With the intermittent ring cutting line 31, it can guide the lifting part 12 to separate instantly along the preset path, avoiding opening jamming, spillage of contents or irregular breakage of aluminum foil film 54. It can be easily operated by the elderly, children and all other groups. 2. After opening, the outer ring 11 remains fixedly welded to the bottle mouth and is not damaged. The top of the outer ring 11 and the end face of the matching container are fitted with PE foam board 52. When the bottle cap is replaced, the PE foam board 52 can fit tightly with the bottle cap to form an effective seal, preventing the intrusion of external air and moisture. This fundamentally solves the problem of sealing failure after opening of traditional gaskets and avoids oxidation, moisture absorption, and deterioration of the remaining contents. It is especially suitable for products such as food, medicine, and lubricating oil that have strict requirements for storage environment.

[0030] Example 2: Refer to Figure 3 The only difference between this embodiment and Embodiment 1 is that: The pull tab 121 has a pull tab notch 122, and the root of the pull lug 123 is connected to both ends of the pull tab 121. It is worth noting that the pull tab notch 122 can be connected via a cutting line 31, or it can be directly configured as a channel 128 with a certain gap (see reference). Figures 7 to 10 (This will not be elaborated upon here.)

[0031] The design of the pull tab notch 122 in this embodiment optimizes the tearing force, making it easier for operators to tear the pull tab 121, reducing the difficulty of opening, and further improving the ease of opening this pull pad.

[0032] Example 3: Refer to Figures 4 to 7 The only difference between this embodiment and Embodiment 2 is that: The pull tab 121 has a pull tab notch 122, and the pull lug 123 has a lifting hole 126 in the middle. The pull lug 123 also has a pull lug notch 124. The two parts of the pull lug 123 located at the pull lug notch 124 are respectively connected to the two ends of the pull tab 121 located at the pull tab notch 122, so that both the pull tab notch 122 and the pull lug notch 124 are connected to the lifting hole 126. It is worth noting that the channels 128 connecting the pull tab notch 122 and the pull lug notch 124 to the lifting hole 126 can be connected by a cutting line 31 (e.g., ...). Figures 4 to 6 ), or it can be directly set to separate channels 128 with a certain gap (e.g. Figures 7 to 10(This will not be described in detail here.) The design of the pull tab notch 122 and the pull lug notch 124 in this embodiment optimizes the tearing force, making it easier for operators to tear the pull tab 121, reducing the difficulty of opening, and further improving the ease of opening this lifting pad.

[0033] In a preferred embodiment, the number of pull tab notches 122 is one, and its edge is arc-shaped (e.g., Figure 5 The curved edge design optimizes tearing force, making it easier for operators to tear the pull tab, reducing the difficulty of opening, and further improving the ease of opening this pull tab. Of course, there are two pull tab notches 122, and their edges are curved (e.g., Figure 6 Its function is the same as that of a single one, and will not be elaborated here.

[0034] In a preferred embodiment, the boundary where the pull tab 123 is located on the outer side wall of the pull tab notch 124 and the pull piece 121 is located on the inner side wall of the pull piece notch 122 is provided with a flared cutting line 32 for easy tearing (e.g., Figure 7 The flared cutting line 32, in conjunction with the intermittent ring cutting line 31, ensures more precise force transmission and guides the gasket to separate instantly along a preset path, preventing jamming, spillage of contents, or irregular breakage of the aluminum foil. It is easy to operate for all people.

[0035] Example 4: Refer to Figure 8 The only difference between this embodiment and Embodiment 3 is that: An inwardly inclined support piece 127 is evenly distributed along the circumference of the lifting hole 126. The root of the support piece 127 is connected to the end of the pull ear 123. In its natural state, the support piece 127 is flush with the pull ear 123. When the support piece 127 is pressed, the support piece 127 is deformed downward under force and drives the pull ear 123 to be pushed upward along the Z-axis, so that a gap is formed between the pull ear 123 and the sealing layer 2, which makes it convenient for fingers to be inserted and gripped.

[0036] The opening process in this embodiment is as follows: When opening, a finger is inserted into the lifting hole 126 and pressed down on the support piece 127. The support piece 127 supports the sealing layer 2 downwards and receives a reverse force to push the pull tab 123 upwards, so that an operating gap is formed between the pull tab 123 and the sealing layer 2. Then, the pull tab 123 is held through the lifting hole 126 and pulled upwards along the Z-axis. The pull tab 121 drives the sealing layer 2 to separate instantly to both sides. The area connected to the pull tab 123 is separated from the fixed area of ​​the bottle mouth 4, thus opening the bottle.

[0037] By adopting the aforementioned design scheme, the beneficial effects of the present invention are: The device employs a press-and-lift trigger structure. The mechanical design of the support plate 127 ensures a smooth lifting action. The integrated connection between the pull tab 123 and the pull plate 121 at both ends allows for even transmission of pulling force. Simply insert your finger into the lifting hole 126 and press down to lift the pull tab 123 upwards, quickly creating a grip gap. No need to pry with your fingernail or exert extra force. This perfectly solves the problem of traditional pull tabs being too tight and difficult to grip, minimizing the operational threshold. The elderly, children, and people with slender fingers or insufficient dexterity can all easily use it.

[0038] Example 5: Refer to Figure 9 The only difference between this embodiment and embodiment four is that: Two inwardly inclined support pieces 127 are evenly distributed along the circumference of the lifting hole 126. The two inwardly inclined support pieces 127 are symmetrically arranged. When the two support pieces 127 are pressed, the support pieces 127 deform downward synchronously and push the pull ear 123 upward along the Z-axis, so that a uniform gap is formed between the pull ear 123 and the sealing layer 2, which makes it convenient for fingers to insert and hold.

[0039] Example 6: Refer to Figure 10 The only difference between this embodiment and Embodiment 4 is that: Multiple inwardly inclined support pieces 127 are evenly distributed along the circumference inside the lifting hole 126. The multiple support pieces 127 are arranged in a segmented opening (preferably 5-6 pieces, symmetrically distributed along the center of the lifting hole 126). The root of the support piece 127 is integrally connected to the end of the pull ear 123. In the natural state, each support piece 127 is flush with the pull ear 123, forming a closed segmented shape without any protrusions or interference. When the support piece 127 is pressed, each support piece deforms downward synchronously and pushes the pull ear 123 upward along the Z-axis, so that a uniform and sufficient operating gap is formed between the pull ear 123 and the sealing layer 2, which is convenient for fingers to insert and hold.

[0040] Example 7: Refer to Figures 11 to 13 The only difference between this embodiment and Embodiment 1 is that: The outer ring portion 11 has a plurality of protrusions 111 evenly distributed along its outer periphery, each protrusion 111 contacting the matching container cap. The protrusions 111 can engage with the inner periphery of the cap, making the outer ring portion 11 and the cap more tightly connected, effectively preventing the gasket from rotating or shifting within the cap, ensuring stable positioning during assembly. Simultaneously, changing the connection between the protrusions 111 and the inner periphery of the cap from traditional line contact to point contact reduces the friction area during assembly and opening while achieving the locking function. This makes cap insertion and opening operations easier and smoother, improving the user's opening experience; the reduced friction also correspondingly reduces wear on the structure and cap of this embodiment.

[0041] As a preferred embodiment of the present invention, the diameter of the outer ring portion 11 is consistent with the outer diameter of the bottle mouth 4, which can fit the bottle mouth more tightly, further enhance the overall sealing performance, effectively prevent leakage of materials inside the bottle and entry of external impurities, and ensure the safety of the contents.

[0042] As a preferred embodiment of the present invention, the inner periphery of the outer ring portion 11 and the outer periphery of the pull tab 121 are both arranged in a wavy line shape, the diameter of the trough 1211 is equivalent to the inner diameter of the corresponding matching bottle mouth, and the diameter of the peak 1212 is smaller than the inner diameter of the corresponding matching bottle mouth 4. In this embodiment, the wavy profile reduces the connection strength between the pull tab 121 and the outer ring 11, thereby reducing the tearing force during opening and making the lifting operation easier. The diameter of its trough 1211 is approximately the same as the inner diameter of the bottle mouth, ensuring effective sealing. Simultaneously, the diameter of the crest 1212 is smaller than the inner diameter of the bottle mouth. When there is an error in the gasket's fit, the crest 1212 can compensate, working together with the trough 1211 to ensure a good seal. The wavy profile provides a clear force point during manual opening, improving the ease and smoothness of operation. The wavy structure forms an oil guide port and channel, ensuring a stable and controllable oil flow, effectively preventing liquid from flowing along the outer wall of the bottle mouth and avoiding contamination of the bottle and the environment. Furthermore, this structure optimizes the flow angle and path, helping to reduce the residue of the last drop of oil, improving the economy and cleanliness of use.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easy-to-open sealing aluminum foil pull pad, comprising a backing layer and a sealing layer, wherein the backing layer is attached to the upper surface of the sealing layer, characterized in that: The backing layer includes an outer ring and a lifting portion disposed inside the outer ring. The lifting portion can be pulled upward to open the sealing layer. The lifting portion includes a pull tab and a pull lug disposed inside the pull tab. A hollow area is provided between the pull lug and the pull tab to facilitate the pull lug being pulled by fingers. The root of the pull lug is integrally connected to the inner side of the pull tab. The outer boundary of the pull tab is connected to the outer ring through a cutting line.

2. The easy-to-open sealing aluminum foil lifting pad according to claim 1, characterized in that: The sealing layer has the cutting line provided on the inner edge of the outer ring.

3. The easy-to-open sealing aluminum foil lifting pad according to claim 1, characterized in that: The pull tab is provided with a pull tab notch, and the root of the pull lug is respectively connected to the two ends of the pull tab located at the pull tab notch; Alternatively, the pull tab may have a pull tab notch, the pull lug may have a lifting hole in the middle, the pull lug may have a pull lug notch, and the two parts of the pull lug located at the pull lug notch may be connected one-to-one with the two ends of the pull tab located at the pull tab notch, so that both the pull tab notch and the pull lug notch are connected to the lifting hole.

4. The easy-to-open sealing aluminum foil lifting pad according to claim 3, characterized in that: The number of notches in the pull tab is at least one, and the edges are arc-shaped.

5. The easy-to-open sealing aluminum foil lifting pad according to claim 3, characterized in that: At least one inwardly tiltable support piece is evenly distributed along the circumference of the lifting hole, and the root of the support piece is connected to the inner sidewall of the pull lug.

6. The easy-to-open sealing aluminum foil lifting pad according to claim 3, characterized in that: The cutting line is provided at the boundary where the outer wall of the pull lug connects to the inner wall of the pull tab; Alternatively, the boundary where the pull lug is located on the outer side of the pull lug notch and the pull tab is located on the inner side of the pull tab notch is provided with a flared cutting line to facilitate tearing.

7. The easy-to-open sealing aluminum foil lifting pad according to claim 6, characterized in that: The cutting line and the flared cutting line are annular discontinuous cuts, bridged by multiple connection points, and their thickness is less than the thickness of the backing layer.

8. The easy-to-open sealing aluminum foil lifting pad according to claim 1, characterized in that: The outer ring portion is provided with a number of protrusions evenly distributed along its outer periphery. Each of the protrusions contacts the inner periphery of the matching container cap, and the diameter of the outer ring portion is equivalent to the outer diameter of the matching container mouth.

9. The easy-to-open sealing aluminum foil lifting pad according to claim 1, characterized in that: The inner periphery of the outer ring and the outer periphery of the pull tab are both wavy, with the diameter of the trough being equivalent to the inner diameter of the corresponding matching bottle opening, and the diameter of the peak being smaller than the inner diameter of the corresponding matching bottle opening.

10. The easy-to-open sealing aluminum foil lifting pad according to claim 1, characterized in that: The hollowed-out area is arc-shaped or U-shaped, and the edges of the hollowed-out area have a smooth transition structure; The end of the pull tab away from the pull piece is provided with an anti-slip protrusion, and the anti-slip protrusion is evenly distributed along the width direction of the pull tab. The sealing layer is made of aluminum foil, and the backing layer is a heat-resistant and corrosion-resistant polymer film layer.

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