A cream cover with good sealing properties

Abstract

The utility model discloses a frost cover that good sealing, relate to frost cover technical field, including including aluminium cover shell, plastic lining and sealing structure, aluminium cover shell with plastic lining between through extrusion forming close adhesion, make aluminium cover shell and plastic lining between connection close, not easy to fall off, the inner wall of plastic lining is equipped with internal thread and cooperates with the external thread of bottle mouth outer surface arrangement, realizes the sealing cover of cosmetic bottle mouth, sealing structure includes the rubber pad that pastes in the upper and lower ends of plastic lining inner wall, and the seamless close adhesion of bottle mouth of two groups of rubber pad all with upper and lower, distinguish from only in the bottom setting sealing rubber pad's design in the existing frost cover structure, and the upper and lower ends of the gap between plastic lining and bottle mouth are all closed tightly, improve sealing effect, discard traditional inlaying clamping mode simultaneously, change to paste fixed, improve the fastness degree of rubber pad connection, avoid rubber pad to fall off and lose and influence sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of frost cover technology, specifically to a frost cover with good sealing performance. Background Technology

[0002] A cream cap is a lid structure used to store cream-like cosmetic containers, serving to seal these containers. Common cream caps on the market include an aluminum outer shell, a plastic inner liner, and a sealing gasket. The aluminum outer shell is manufactured using a wire drawing process; the sealing gasket is embedded and snapped into the inner surface of the plastic liner to seal the cosmetic bottle opening. However, existing cream caps have a risk of the sealing gasket falling off or being lost during use, affecting the sealing effect. Therefore, a cream cap with better sealing performance needs to be designed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to design a frost cover with good sealing performance, thereby solving the problem mentioned in the background art that the sealing gasket in the existing frost cover may fall off or be lost, thus affecting the sealing effect.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0005] A high-sealing cream cap includes an aluminum cap shell, a plastic liner, and a sealing structure. The aluminum cap shell and the plastic liner are tightly bonded together by extrusion molding, ensuring a tight connection that prevents them from easily falling off. The inner wall of the plastic liner has internal threads that engage with external threads on the outer surface of the bottle opening, achieving a tight seal on the cosmetic bottle opening. The sealing structure includes adhesive pads attached to the upper and lower ends of the inner wall of the plastic liner. Both sets of adhesive pads are seamlessly and tightly bonded to the bottle opening. Unlike existing cream cap designs that only have sealing pads at the bottom, this design tightly closes both ends of the gap between the plastic liner and the bottle opening, improving the sealing effect. It also abandons the traditional embedded snap-fit ​​method, replacing it with adhesive fixation, increasing the strength of the adhesive pad connection and preventing the pads from falling off and affecting the sealing effect.

[0006] Preferably, the adhesive pad includes an upper sealing pad and a lower sealing pad; the upper sealing pad is adhered to the top of the inner surface of the plastic liner, and the bottom surface of the upper sealing pad is a smooth arc shape. This smooth arc shape design allows the top of the bottle opening to deform by squeezing the upper sealing pad when the frost cap is threaded onto the bottle opening, and then continue rotating until the bottle opening is tightly fitted to the top of the inner surface of the plastic liner. The lower sealing pad is adhered to the bottom of the inner surface of the plastic liner. Both the upper and lower sealing pads are squeezed by the bottle opening, achieving a tight seal at both ends of the gap between the plastic liner and the bottle opening, ensuring a sealing effect.

[0007] Preferably, the inner surface of the upper sealing gasket is provided with an upper groove, and the upper end of the outer surface of the bottle mouth is provided with an upper convex ring that fits tightly with the upper groove; the inner surface of the lower sealing gasket is provided with a lower groove, and the lower end of the outer surface of the bottle mouth is provided with a lower convex ring that fits tightly with the lower groove. Through the design of the upper groove and upper convex ring, and the lower groove and lower convex ring, the bottle mouth is threadedly connected to the plastic liner and then locked by the upper and lower sealing gaskets, thus sealing the bottle mouth and further improving the connection between the bottle mouth and the plastic liner, indirectly ensuring the sealing performance. When disassembly is required, force must be applied to rotate the bottle mouth to squeeze the upper and lower sealing gaskets so that the plastic liner and the bottle mouth can be separated.

[0008] Preferably, the upper sealing gasket has a slot at its top, and a sealing cap gasket engages in the slot. The upper sealing gasket fits tightly against the top edge of the bottle opening, and the sealing cap gasket, which is flush with the middle position, further seals the bottle opening.

[0009] Preferably, the top surface of the bottle opening is tightly fitted to the bottom surface of the slot, the inner diameter of the top opening of the bottle opening is equal to the inner diameter of the smallest opening of the slot, and after the bottle opening is connected to the cream cap, the upper and lower ends of the peripheral surface of the bottle opening are sealed by the upper sealing gasket and the lower sealing gasket, and the top of the bottle opening is sealed and engaged by the bottom surface of the slot on the upper sealing gasket, thereby playing a multi-layer sealing role for the cosmetics inside the bottle opening and further improving the sealing effect.

[0010] Preferably, the bottom of the lower sealing gasket is integrally formed with a bottom surface gasket, which is bonded to the bottom surface of the plastic inner lining. After the plastic inner lining and the bottle mouth are fixed by threaded connection, the bottom surface gasket is squeezed, thereby sealing the bottom gap between the cream cap and the cosmetic bottle mouth. With the upper and lower sealing gaskets, the bottle mouth and the cream cap are sealed in all directions, improving the sealing effect.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, by incorporating upper and lower sealing gaskets, differs from existing cream cap designs that only use a sealing gasket at the bottom. It tightly closes both ends of the gap between the plastic liner and the bottle opening, enhancing the sealing effect. Furthermore, the integrated groove design on the upper sealing gasket further seals the sides and top of the bottle opening completely. Finally, the integrated bottom gasket of the lower sealing gasket compresses the bottom gasket after the plastic liner and bottle opening are threaded together, sealing the bottom gap between the cream cap and the cosmetic bottle opening. With both upper and lower sealing gaskets, a comprehensive seal is achieved between the bottle opening and the cream cap, improving the sealing effect. Moreover, it abandons the traditional embedded snap-fit ​​method, opting instead for adhesive fixation, increasing the strength of the gasket connection and preventing gasket detachment or loss that could compromise the sealing effect. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a frontal sectional view of the structure of this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0016] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B;

[0017] Figure 5 This is a three-dimensional structural diagram of the plastic liner in this utility model;

[0018] Figure 6 This is a bottom-view three-dimensional structural diagram of the upper sealing sleeve in this utility model;

[0019] Figure 7 This is a top-view three-dimensional structural diagram of the upper sealing sleeve in this utility model;

[0020] Figure 8 This is a three-dimensional structural diagram of the lower sealing sleeve in this utility model;

[0021] Figure 9 This is a three-dimensional structural diagram of the bottle opening of a cosmetic container that mates with the plastic liner in this utility model.

[0022] Figure 10 This is a three-dimensional structural diagram of the sealing gasket in this utility model;

[0023] Figure 11 This is a frontal cross-sectional view of the structure of the upper sealing sleeve with an arc-shaped bottom surface in this utility model.

[0024] The image shows:

[0025] 110. Aluminum cap; 210. Plastic liner; 211. Internal thread; 310. Bottle mouth; 311. External thread; 312. Upper convex ring; 313. Lower convex ring; 410. Upper sealing sleeve; 411. Upper groove; 412. Slot; 510. Lower sealing sleeve; 511. Lower groove; 512. Bottom rubber gasket; 610. Sealing cap gasket. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] The embodiments of this utility model are as follows:

[0031] See Figure 1-11 As shown, the frost cover with good sealing performance includes an aluminum cover shell 110, and a plastic liner 210 is provided on the inner surface of the aluminum cover shell 110. The aluminum cover shell 110 and the plastic liner 210 are tightly bonded together after extrusion molding to prevent the aluminum cover shell 110 and the plastic liner 210 from falling off.

[0032] The inner side of the plastic liner 210 is provided with an internal thread 211, and the outer surface of the bottle mouth 310 of the cosmetic container that mates with the cream cap is provided with an external thread 311. Through the threaded engagement of the internal thread 211 and the external thread 311, the plastic liner 210 and the bottle mouth 310 are easy to assemble and disassemble, that is, the cream cap and the cosmetic container are easy to assemble and disassemble.

[0033] An upper sealing gasket 410 is attached to the upper side of the inner surface of the plastic liner 210, and a lower sealing gasket 510 is attached to the lower side of the inner surface of the plastic liner 210. The internal thread 211 is located between the upper sealing gasket 410 and the lower sealing gasket 510.

[0034] The upper sealing gasket 410 is designed to seal the upper part of the circumference and the upper surface of the bottle opening 310, as detailed below:

[0035] The bottom surface of the upper sealing gasket 410 is a smooth arc shape, so that when the plastic liner 210 is threadedly connected to the bottle mouth 310, the top of the bottle mouth 310 can be deformed by squeezing the upper sealing gasket 410. After continuing to rotate, the bottle mouth 310 continues to extend until it is tightly fitted to the top of the inside of the plastic liner 210.

[0036] The inner surface of the upper sealing gasket 410 is provided with an upper groove 411, and the upper end of the outer surface of the bottle mouth 310 is provided with an upper convex ring 312 that fits tightly with the upper groove 411. After the bottle mouth 310 is threadedly connected to the plastic liner 210, the bottle mouth 310 is locked by the upper groove 411 and the upper convex ring 312, which not only seals the bottle mouth 310 but also further enhances the connection between the bottle mouth 310 and the plastic liner 210 and indirectly ensures the sealing performance. When disassembly is required, the bottle mouth 310 needs to be rotated with a little force to squeeze the upper sealing gasket 410 so that the plastic liner 210 and the bottle mouth 310 can be separated.

[0037] The top of the upper sealing gasket 410 is integrally formed with a groove 412. The bottom surface of the groove 412 is tightly fitted to the top surface of the bottle mouth (310). See attached drawing. Figure 3 Appendix Figure 6 Appendix Figure 7 and attached Figure 11 It can be seen that there is an opening in the middle of the slot 412, and a sealing gasket 610 is engaged at the opening of the slot 412, so that the sealing gasket 610 is tightly attached to the top of the inside of the plastic liner 210. At this time, the inner diameter of the bottom opening of the slot 412 is equal to the inner diameter of the top opening of the bottle mouth 310. After the bottle mouth 310 is threadedly connected to the plastic liner 210, the upper part of the periphery and the top surface of the bottle mouth 310 are sealed and closed, thus achieving the sealing of the bottle mouth 310.

[0038] The lower sealing gasket 510 is designed to seal the lower periphery of the bottle opening 310 and the connection with the outside environment, as detailed below:

[0039] The inner surface of the lower sealing gasket 510 is provided with a lower groove 511, and the lower end of the outer surface of the bottle mouth 310 is provided with a lower convex ring 313 that fits tightly with the lower groove 511. After the bottle mouth 310 is threadedly connected to the plastic liner 210, the bottle mouth 310 is locked by the lower groove 511 and the lower convex ring 313, which not only seals the bottle mouth 310 but also further enhances the connection between the bottle mouth 310 and the plastic liner 210 and indirectly ensures the sealing performance. When disassembly is required, the bottle mouth 310 needs to be rotated with a little force to squeeze the upper sealing gasket 410 so that the plastic liner 210 and the bottle mouth 310 can be separated, thereby achieving a seal on the lower part of the periphery of the bottle mouth 310.

[0040] The bottom of the lower sealing gasket 510 is integrally formed with a bottom surface gasket 512. The bottom surface gasket 512 is bonded to the bottom surface of the plastic liner 210. After the plastic liner 210 and the bottle mouth 310 are threadedly connected and fixed, the bottom surface gasket 512 is squeezed, thereby sealing and closing the bottom gap between the cream cap and the cosmetic bottle mouth 310.

[0041] In summary, this application achieves a comprehensive seal between the bottle opening 310 and the plastic liner 210 through the design of the upper sealing gasket 410, the upper groove 411, the upper convex ring 312, the slot 412, the lower sealing gasket 510, the lower groove 511, the lower convex ring 313, and the bottom gasket 512.

[0042] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship conventionally understood by those skilled in the art. These terms are merely for the convenience of describing this utility model and simplifying the description, and 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; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A frost cover with good sealing properties, characterized in that: The device includes an aluminum cap shell (110), a plastic liner (210), and a sealing structure; the aluminum cap shell (110) and the plastic liner (210) are tightly fitted together by extrusion molding; the inner wall of the plastic liner (210) is provided with an internal thread (211) and it engages with the external thread (311) provided on the outer surface of the bottle mouth (310); the sealing structure includes rubber pads pasted on the upper and lower ends of the inner wall of the plastic liner (210), and both sets of rubber pads are seamlessly and tightly fitted to the bottle mouth (310).

2. The frost cover with good sealing performance according to claim 1, characterized in that, The gasket includes an upper sealing gasket (410) and a lower sealing gasket (510); the upper sealing gasket (410) is glued to the top of the inner surface of the plastic liner (210), the bottom surface of the upper sealing gasket (410) is a smooth arc surface, and the lower sealing gasket (510) is glued to the bottom of the inner surface of the plastic liner (210). Both the upper sealing gasket (410) and the lower sealing gasket (510) are squeezed by the bottle mouth (310).

3. The frost cover with good sealing performance according to claim 2, characterized in that, The inner surface of the upper sealing gasket (410) is provided with an upper groove (411), and the upper end of the outer surface of the bottle mouth (310) is provided with an upper convex ring (312) that fits tightly with the upper groove (411); the inner surface of the lower sealing gasket (510) is provided with a lower groove (511), and the lower end of the outer surface of the bottle mouth (310) is provided with a lower convex ring (313) that fits tightly with the lower groove (511).

4. The frost cover with good sealing performance according to claim 3, characterized in that, The top of the upper sealing gasket (410) is provided with a slot (412), and a sealing cover gasket (610) is engaged in the slot (412).

5. The frost cover with good sealing performance according to claim 4, characterized in that, The top surface of the bottle mouth (310) is in close contact with the bottom surface of the slot (412), and the inner diameter of the top opening of the bottle mouth (310) is equal to the inner diameter of the smallest opening of the slot (412).

6. The frost cover with good sealing performance according to claim 5, characterized in that, The bottom of the lower sealing gasket (510) is integrally formed with a bottom surface gasket (512), and the bottom surface gasket (512) is bonded to the bottom surface of the plastic liner (210).

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