CN205045166U - Sealed plastics lid - Google Patents

Abstract

The application discloses a sealing plastic cover, comprising a top wall (1), and a skirt (2) connected to the edge of the top wall (1), the inner surface of the skirt (2) is provided with a spiral for engaging with a container part (3), the inner surface of the top wall (1) is provided with a sealing liner (4), after the plastic cap is screwed in from the top to the bottom of the container through the screw part (3), the top surface and inner Both sides are engaged with the sealing lining (4). Through the spiral engagement of the skirt and the container, and the engagement of the sealing liner with the top surface and the inner surface of the bottle neck of the container, a reliable seal is achieved, which effectively prevents air from entering the container and affecting the chemical composition of the cosmetics.

Description

A sealed plastic cover

technical field

The utility model relates to a container with a cover, in particular to a sealed plastic cover of the container with a cover.

Background technique

In the cosmetic industry, the sealing of goods has always been a concern. Because the ingredients in the air will destroy the chemical substances in the cosmetics, the bottle cap should be tightened after use to prevent the cosmetics from oxidizing and evaporating and causing product deterioration, especially the vitamin C and other ingredients in today's whitening and upstart skin care products, which are easily oxidized.

At present, there are some lotion bottle seals on the market, which are only guaranteed by the screw between the bottle cap and the bottle body. In this way, in long-term use, air will enter the flat body through the unreliable seal. Thus affecting the chemical composition of cosmetics.

Utility model content

The utility model provides a sealing plastic cover, through the spiral engagement of the skirt and the container, and the engagement of the sealing liner with the top surface and the inner surface of the bottle neck of the container, to achieve reliable sealing, effectively prevent the air from entering the container, and The chemical composition of cosmetics has an impact.

The technical scheme provided by the utility model is as follows: a sealed plastic cover, including a top wall, and a skirt connected to the edge of the top wall, the inner surface of the skirt is provided with a spiral part for engaging with the container, and the inner surface of the top wall is provided with The sealing liner, after the plastic cap is screwed in from the top to the bottom of the container through the screw part, the top surface and the inner surface of the bottle neck of the container are engaged with the sealing liner.

Preferably, the sealing liner includes an upper sealing portion and a side sealing portion, both of which are annular structures with the same inner diameter and are coaxially and fixedly connected with the plastic cover.

Preferably, the outer diameter of the upper sealing part is between the inner and outer diameters of the bottle neck of the container, and the inner diameter is smaller than the inner diameter of the bottle neck of the container; the outer diameter of the side sealing part is the same as the inner diameter of the bottle neck of the container.

Preferably, a fixing groove is provided on the outer surface of the side sealing part.

Preferably, an O-ring sealing ring is arranged in the fixing groove.

After adopting the above-mentioned technical scheme, the utility model has the following beneficial effects:

1. Through the spiral engagement of the skirt and the container, and the engagement of the sealing liner with the top surface and inner surface of the bottle neck of the container, a three-stage seal is achieved, which effectively prevents air from entering the container and affecting the chemical composition of the cosmetics.

2. The O-shaped sealing ring is installed on the outer surface of the side sealing part, which is not easy to fall off compared with the top of the bottle cap.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present (utility model) or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the following descriptions The drawings are only some embodiments described in this application, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is the structural representation of the utility model sealed plastic cover;

Fig. 2 is a schematic diagram of using the sealing plastic cover of the present invention.

Figure 3 is a partially enlarged view of Figure 2;

Meanings of marks in the drawings: 1. Top wall; 2. Skirt; 3. Spiral part; 4. Sealing lining; 5. Upper sealing part; 6. Side seal; 7. Fixing groove; 8. O-ring.

detailed description

In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

The utility model embodiment is written in a progressive manner.

As shown in Figures 1 and 3, this embodiment provides a sealed plastic cover, including a top wall 1, and a skirt 2 connected to the edge of the top wall 1, and the inner surface of the skirt 2 is provided with a spiral part for engaging with the container 3. A sealing liner 4 is provided on the inner surface of the top wall 1. After the plastic cap is screwed in from the top to the bottom of the container through the screw part 3, both the top surface and the inner surface of the bottle neck of the container are engaged with the sealing liner 4.

The inner surface of the skirt 2 and the spiral engagement of the container form the first seal, the top surface of the bottle neck of the container and the sealing liner 4 form the second seal, and the inner surface of the bottle neck of the container forms the third seal.

The sealing liner 4 includes an upper sealing part 5 and a side sealing part 6, both of which are annular structures with the same inner diameter and are coaxially fixedly connected with the plastic cap; the outer diameter of the upper sealing part 5 is between the inner and outer diameters of the bottle neck of the container , the inner diameter is smaller than the inner diameter of the bottle neck of the container, and the outer diameter of the side sealing part 6 is the same as the inner diameter of the bottle neck of the container; the outer surface of the side sealing part is provided with a fixing groove 7 for fixing the O-ring 8, and the O-ring 8 Installed on the outer surface of the side sealing part, it is not easy to fall off compared with the top of the bottle cap. When the plastic cap is screwed in from the top to the bottom of the container through the screw part, the inner surface of the bottle neck of the container is sealed against the O-ring 8. The extruded and deformed O-shaped sealing ring 8 effectively seals the container through the restoring force, and the O-shaped sealing ring 8 is cheap and easy to replace.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. a sealed plastic lid, comprise roof (1), and and the shirt rim (2) of roof (1) edge conjunction, described shirt rim (2) inside face is provided with the whorl (3) for engaging with container, it is characterized in that, described roof (1) inside face is provided with sealing lining (4), at vinyl cover by after described whorl (3) screws in from container top to bottom, the end face of container bottle neck and medial surface all serve as a contrast (4) engage with described sealings.

2. sealed plastic lid according to claim 1, it is characterized in that, described sealing lining (4) comprises sealing (5) and side seals (6), and both are loop configuration, and internal diameter is identical and be all coaxially fixedly connected with vinyl cover.

3. sealed plastic lid according to claim 2, is characterized in that, described upper sealing (5) external diameter is between the inside and outside footpath of container bottle neck, and internal diameter is less than the internal diameter of container bottle neck; The external diameter of described side seals (6) is identical with the internal diameter of container bottle neck.

4. the sealed plastic lid according to Claims 2 or 3, is characterized in that, the outside face of described side seals (6) is provided with hold down groove (7).

5. sealed plastic lid according to claim 4, is characterized in that, is provided with O-ring seals (8) in described hold down groove (7).