Easily-opened unscrewing cover

Abstract

The utility model discloses an easy-to-open unscrewing cover. The problems that an existing unscrewing cover is large in opening resistance and inconvenient to open are solved. The bottle cap comprises a bottle cap body and further comprises a through hole formed in the bottle cap body. The easy-to-tear film is arranged on the outer surface of the bottle cap and is used for shielding the through hole; the gasket is arranged on the inner surface of the bottle cap and is used for shielding the through hole; the easy-to-tear film is provided with a first position for shielding the through hole and a second position for opening and exposing the through hole to enable the outer side space of the bottle cap to be communicated with the outer side space of the gasket through the through hole; and when the easy-to-tear film is located at the second position, the gasket elastically deforms inwards under the action of gas pressure in the outer space of the bottle cap to compress the space in the bottle. The bottle cap has the advantages that the through hole, the easy-to-tear film and the gasket are arranged, the outer side space of the bottle cap can be communicated with the outer side space of the gasket through the through hole, and opening resistance is reduced. And the gasket can isolate objects in the bottle from the through hole, so that the through hole is prevented from being corroded by the product.

Description

Technical Field

[0001] This utility model relates to a bottle cap, specifically an easy-open screw cap. Background Technology

[0002] With social development and progress, bottled containers have become commonplace items in people's lives. In recent years, although there have been numerous improvements to the appearance of bottles, there have been relatively few improvements to bottle caps. As an essential component for sealing bottles, most bottle caps still use traditional sealing methods, namely screw-on opening and sealing.

[0003] The claw-type screw caps commonly used in glass jars, while having a high market share, are relatively difficult to open. The principle behind this is that canned goods are generally filled at high temperatures. When the cap is put on, the internal temperature of the jar is high. After the cap is tightened and the jar cools to room temperature, a negative pressure forms inside, sucking the cap in and making it difficult to open. In daily life, existing claw-type screw caps require considerable force to open. Glass jars are commonly used for fruit cans, sauce cans, etc., and are mostly used by the elderly and women. For people with one arm, weak hands, or limited hand mobility, opening the cap is quite difficult. Traditional screw caps are strenuous and inconvenient for consumers. While simple perforations can quickly release negative pressure, they cannot be reused, and foreign objects or dust can easily enter the cap through the perforation, affecting the reusability of the product inside. Utility Model Content

[0004] To address the problem of high opening resistance and inconvenience in existing screw-on caps, this invention provides an easy-to-open screw-on cap.

[0005] The technical solution of this utility model is: an easy-open screw cap, including a bottle cap, and further comprising:

[0006] A through-hole is provided on the bottle cap;

[0007] Easy-tear film, applied to the outer surface of the bottle cap and used to cover the through hole;

[0008] A gasket is provided on the inner surface of the bottle cap and is used to block the through hole; the easy-tear film has a first position that blocks the through hole and a second position that opens to expose the through hole so that the outer space of the bottle cap and the outer space of the gasket are connected through the through hole; when the easy-tear film is in the second position, the gasket is elastically deformed inward by the gas pressure of the outer space of the bottle cap, compressing the inner space of the bottle.

[0009] As a further improvement of this utility model, the gasket is integrally molded from rubber material.

[0010] As a further improvement of this utility model, the gasket is heat-bonded to the inner surface of the bottle cap using a compression molding process.

[0011] As a further improvement of this utility model, the edge of the gasket is adhered to the inner wall of the bottle cap by hot melt adhesive, and the gasket is located below the through hole.

[0012] As a further improvement of this utility model, the thickness of the gasket is 0.08 mm to 0.2 mm.

[0013] As a further improvement of this utility model, the gasket is arranged in a circular or elliptical shape.

[0014] As a further improvement of this utility model, the distance from the center line of the through hole to the connection point between the gasket and the bottle cap is not less than 2 cm.

[0015] As a further improvement of this utility model, it also includes a foamed sealant, which is provided at the inner edge of the cap hook to facilitate sealing between the cap and the bottle body.

[0016] As a further improvement of this utility model, the easy-tear film is provided with a sealing edge and an easy-tear part, and the sealing edge is connected to the upper surface of the bottle cap by a heat sealing ring.

[0017] As a further improvement of this utility model, the easy-tear film includes a barrier layer and a heat-sealing layer. The heat-sealing layer is used to connect with the bottle cap. The barrier layer is disposed on the upper surface of the heat-sealing layer. A gap is formed between the end of the easy-tear portion away from the sealing edge and the outer surface of the bottle cap.

[0018] The beneficial effects of this invention are as follows: The through-hole, easy-tear film, and gasket connect the outer space of the bottle cap to the outer space of the gasket, creating a pressure difference between the inner and outer sides of the gasket. The gasket elastically deforms under this pressure difference, ensuring equal air pressure inside and outside the bottle cap and reducing opening resistance. The easy-tear film facilitates reliable sealing of the through-hole, guaranteeing product quality, and is easy to open by rotating the cap. The gasket isolates the contents of the bottle from the through-hole, preventing corrosion of the through-hole. Furthermore, after the easy-tear film is opened, the contents of the bottle will not leak directly to the outside, facilitating secondary sealing of the cap and the preservation of canned goods not finished in one sitting. Attached Figure Description

[0019] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0020] Appendix Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0021] Appendix Figure 3 For the appendix Figure 2 A magnified structural diagram of point I in the middle.

[0022] In the diagram, 1 is the bottle cap; 11 is the through hole; 2 is the easy-tear film; 21 is the sealing edge; 22 is the easy-tear part; 23 is the heat-sealing ring; 24 is the barrier layer; 25 is the heat-sealing layer; 26 is the gap; 3 is the gasket; 4 is the hot melt adhesive; and 5 is the foamed sealant. Detailed Implementation

[0023] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0024] Depend on Figure 1 Combination Figure 2-3 As shown, an easy-open screw cap includes a cap 1, and also includes:

[0025] A through hole 11 is provided on the bottle cap 1;

[0026] Easy-tear film 2 is provided on the outer surface of bottle cap 1 and is used to cover through hole 11;

[0027] A gasket 3 is disposed on the inner surface of the bottle cap 1 and is used to block the through hole 11. The easy-tear film 2 has a first position that blocks the through hole 11 and a second position that opens to expose the through hole 11, allowing the outer space of the bottle cap 1 and the outer space of the gasket 3 to communicate through the through hole 11. When the easy-tear film 2 is in the second position, the gasket 3 is elastically deformed inward under the gas pressure of the outer space of the bottle cap, compressing the inner space of the bottle. The beneficial effect of this utility model is that by providing a through hole, an easy-tear film, and a gasket, the through hole allows the outer space of the bottle cap to communicate with the outer space of the gasket, thus creating a pressure difference between the inner and outer sides of the gasket. The gasket elastically deforms under the pressure difference, which makes the gas pressure inside and outside the bottle cap the same, reducing the opening resistance. The easy-tear film facilitates a reliable seal on the through-hole, ensuring product quality. It also allows for easy opening and rotation of the cap. The gasket isolates the contents from the through-hole, preventing corrosion and ensuring the contents don't leak out. Furthermore, once the easy-tear film is opened, leakage is prevented, facilitating a second seal. This is beneficial for storing unfinished canned goods and reusing the cap. Specifically, once the cap and bottle are finished, the cap is difficult to rotate open. This invention incorporates a through-hole, an easy-tear film, and a gasket. Tearing the film connects the outer space of the bottle cap to the outer space of the gasket (between the inner space of the bottle cap and the outer surface of the gasket). At this point, the inner side of the gasket is under negative pressure, while the outer side can be considered to be at standard atmospheric pressure. This creates a pressure difference, causing the gasket to elastically deform (deform towards the inside of the bottle) under this pressure difference. This elastic deformation compensates for changes in the bottle's internal volume, ensuring equal pressure inside and outside the bottle cap and reducing opening resistance. The easy-tear film facilitates reliable sealing of the through-hole, guaranteeing product quality, and is easy to open by rotating the cap. The rubber gasket isolates the contents of the can (bottle) from the through-hole, preventing corrosion and facilitating reuse. Furthermore, after the easy-tear film is opened, the contents of the can will not leak directly to the outside, allowing for secondary sealing of the cap. This is beneficial for preserving unfinished canned goods and for reusing the cap. The easy-tear film acts as a dust barrier, preventing airborne impurities from entering and contaminating food through the opening. Simultaneously, once the easy-tear cap is opened, the gasket also prevents airborne impurities from entering the can (bottle), making the product safer and more hygienic. The opening connects the outer and inner sides of the cap (outside the gasket), relieving pressure, reducing the pressure difference between the inside and outside of the packaging, facilitating opening, improving product interactivity, and enhancing the user experience.

[0028] The gasket 3 is integrally molded from rubber material. Rubber has good elasticity, and this invention uses food-grade rubber material for integral molding, so it will not affect the use of the product even if it comes into contact with the inside of the bottle.

[0029] The gasket 3 is heat-bonded to the inner surface of the bottle cap 1 using a compression molding process. Specifically, the edge of the gasket 3 is adhered to the inner wall of the bottle cap 1 using hot melt adhesive 4, and the gasket 3 is located below the through hole 11. This structure facilitates gasket fixation and is simple in design.

[0030] The thickness of the gasket 3 is 0.08 mm to 0.2 mm. Specifically, the gasket 3 is circular or elliptical. More specifically, the distance from the center line of the through hole 11 to the connection point between the gasket and the bottle cap 1 is not less than 2 cm. In this invention, the gasket is preferably circular or elliptical, but square, quadrilateral, or other shapes that can cover the through hole are also acceptable. This structure allows the gasket to deform more easily and quickly, thereby reducing the pressure difference between the inside and outside of the gasket quickly and facilitating the opening of the bottle cap.

[0031] This invention also includes a foamed sealant 5, which is located on the inner edge of the cap 1 at the cap hook, facilitating a seal between the cap 1 and the bottle body. This ensures a reliable seal between the cap and the bottle body.

[0032] The easy-tear film 2 has a sealing edge 21 and an easy-tear portion 22. The sealing edge 21 is connected to the upper surface of the bottle cap 1 via a heat-sealing ring 23. Specifically, the easy-tear film 2 includes a barrier layer 24 and a heat-sealing layer 25. The heat-sealing layer 25 is used to connect to the bottle cap 1. The barrier layer 24 is located on the upper surface of the heat-sealing layer 25. A gap 26 is formed between the end of the easy-tear portion 22 away from the sealing edge 21 and the outer surface of the bottle cap 1. The easy-tear portion and the gap facilitate easy tearing by the user, making product operation more convenient. The barrier layer and the heat-sealing layer can reliably prevent foreign objects from entering the bottle, while also facilitating cooperation with the bottle cap for quick opening.

[0033] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.

Claims

1. An easy-open screw cap, comprising a bottle cap (1), characterized in that: Also includes: A through hole (11) is provided on the bottle cap (1); Easy-tear film (2) is provided on the outer surface of the bottle cap (1) and is used to block the through hole (11). A gasket (3) is provided on the inner surface of the bottle cap (1) and is used to block the through hole (11); the easy-tear film (2) has a first position that blocks the through hole (11) and a second position that opens and exposes the through hole (11) so that the outer space of the bottle cap (1) and the outer space of the gasket (3) are connected through the through hole (11); when the easy-tear film (2) is in the second position, the gasket (3) is elastically deformed inward by the gas pressure of the outer space of the bottle cap to compress the inner space of the bottle.

2. The easy-open screw cap according to claim 1, characterized in that... The gasket (3) is integrally molded from rubber material.

3. The easy-open screw cap according to claim 1, characterized in that... The gasket (3) is heat-bonded to the inner surface of the bottle cap (1) using a compression molding process.

4. The easy-open screw cap according to claim 1, characterized in that... The edge of the gasket (3) is attached to the inner wall of the bottle cap (1) by hot melt adhesive (4), and the gasket (3) is located below the through hole (11).

5. The easy-open screw cap according to claim 1, characterized in that... The thickness of the gasket (3) is 0.08 mm to 0.2 mm.

6. The easy-open screw cap according to claim 1, characterized in that... The gasket (3) is arranged in a circular or elliptical shape.

7. The easy-open screw cap according to claim 1, characterized in that... The distance from the center line of the through hole (11) to the connection point between the gasket and the bottle cap (1) is not less than 2 cm.

8. The easy-open screw cap according to claim 1, characterized in that... It also includes foamed sealant (5), which is placed on the inner edge of the cap (1) at the cap hook to facilitate sealing between the cap (1) and the bottle body.

9. The easy-open screw cap according to claim 1, characterized in that... The easy-tear film (2) is provided with a sealing edge (21) and an easy-tear part (22). The sealing edge (21) is connected to the upper surface of the bottle cap (1) through a heat sealing ring (23).

10. The easy-open screw cap according to claim 9, characterized in that... The easy-tear film (2) includes a barrier layer (24) and a heat-sealing layer (25). The heat-sealing layer (25) is used to connect with the bottle cap (1). The barrier layer (24) is disposed on the upper surface of the heat-sealing layer (25). The easy-tear part (22) forms a gap (26) between the end away from the sealing edge (21) and the outer surface of the bottle cap (1).

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