CN210972167U

CN210972167U - Sealing structure for container mouth

Info

Publication number: CN210972167U
Application number: CN201921284575.5U
Authority: CN
Inventors: 罗邦毅; 张彩芹; 汤围
Original assignee: Hangzhou Youngsun Intelligent Equipment Co Ltd
Current assignee: Hangzhou Youngsun Intelligent Equipment Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-07-10
Anticipated expiration: 2029-08-09

Abstract

The utility model provides a container mouth seal structure, including container lid and container mouth, container lid and container mouth threaded connection, top in the container lid is provided with inboard annular wall and outside annular wall, and the thickness looks adaptation on interval and container mouth top between inboard annular wall and the outside annular wall, and inboard annular wall and outside annular wall form inboard sealed with container mouth top respectively when the container lid is screwed up, outside sealed cooperation, and the top on container mouth top and the inboard roof contact of container lid and form and be in the middle top seal between inboard sealed and the outside sealed. The utility model discloses sealing structure forms multistage spacing formula and seals, and sealing performance is more reliable, and excessive sealing can not appear.

Description

Sealing structure for container mouth

Technical Field

The utility model relates to a container mouth seal structure field.

Background

For sealing the bottle mouth, one current method is to screw down the cap and seal the bottle mouth by matching the inner side inclined plane with the inner wall inclined plane of the bottle mouth. The structure has poor consistency of the sealing degree, and the sealing effect is easily influenced because the sealing is not in place.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a container mouth seal structure that seal structure good reliability is provided. Therefore, the utility model adopts the following technical scheme:

the container mouth sealing structure comprises a container cover and a container mouth, wherein the container cover is in threaded connection with the container mouth, and the container mouth sealing structure is characterized in that an inner side annular wall and an outer side annular wall are arranged at the top of the container cover, the distance between the inner side annular wall and the outer side annular wall is matched with the thickness of the top end of the container mouth, the inner side annular wall and the outer side annular wall are respectively in sealing fit with the top end of the container mouth in an inner side sealing mode and an outer side sealing mode when the container cover is screwed down, and the top end of the container mouth is in contact with the top wall of the inner side of the container cover to form a middle top.

Further, the inner annular wall and the outer annular wall are downward-hanging annular bulges which are downwards projected from the top wall of the inner side of the container cover.

Further, the lower end of the inner annular wall is lower than the lower end of the outer annular wall, so that when the container cover is screwed down, the contact between the container mouth top end sealing part for performing inner sealing and the inner annular wall is prior to the contact between the container mouth top end sealing part for performing outer sealing and the outer annular wall.

Further, the length of the inboard annular wall overhang is greater than the length of the outboard annular wall overhang.

Further, the inner seal, the outer seal and the top seal are linear seals or planar seals.

Further, the shape of the container mouth close to the top end thereof is a slightly inward-contracted conical structure; on the axial section, the section shape of the top end of the container opening is in a convex head shape.

Owing to adopt the technical scheme of the utility model, the utility model discloses sealed structure forms multistage spacing formula and seals, and sealing performance is more reliable, and excessive sealing can not appear.

Drawings

Fig. 1 is an axial cross-sectional view of an embodiment of the present invention.

Fig. 2 is an axial cross-sectional view of another embodiment of the present invention.

Fig. 3 is an enlarged view of a portion a of fig. 1.

Fig. 4 is an enlarged view of a portion B of fig. 2.

Detailed Description

Referring to the drawings, the utility model provides a container mouth seal structure, including container lid 1 and container mouth 2, container lid 1 and container mouth 2 threaded connection, the top in the container lid 1 is provided with inboard annular wall 11 and outside annular wall 12, and the interval between inboard annular wall 11 and the outside annular wall 12 and the thickness on container mouth top are adapted, and when the container lid 1 was screwed up, inboard annular wall 11 and outside annular wall 12 formed the sealed cooperation of inboard sealed S1, outside sealed S2 with container mouth top 21 respectively, and the top of container mouth top 21 and the inboard roof 13 contact of container lid and form the middle top seal S3 that is located between inboard sealed S1 and outside sealed S2.

The inboard seal S1 and outboard seal S2 and top seal S3 may all be linear seals, i.e., the seal is a point when viewed in axial cross-section as in fig. 1 and 3. Alternatively, both the sealing portions may be planar sealing, that is, as shown in fig. 2 and 4, the sealing portions may be a single line when viewed in an axial cross section. Alternatively, a part of the seal may be a planar seal and a part may be a linear seal.

The inner annular wall 11 and the outer annular wall 12 are downward-hanging annular protrusions protruding downward from a top wall 13 inside the container cover 1.

The cross-sectional shape of the container mouth top end 21 is a nose shape in axial cross-section.

The lower end of the inner annular wall 11 is lower than the lower end of the outer annular wall 12, so that when the container cover 1 is screwed down, the contact between the container mouth top end sealing part 211 for performing inner sealing and the inner annular wall 11 is earlier than the contact between the container mouth top end sealing part 212 for performing outer sealing and the outer annular wall 12; the length of the overhang of the inner annular wall 11 is greater than the length of the overhang of the outer annular wall 12. The shape 22 of the container mouth adjacent to the top end 21 thereof is a slightly inwardly tapered structure; thus, not only does the tip 21 squeeze the inner and outer

annular walls

11, 12 of the container lid to either side when the container lid is tightened, but the reaction force of the outer annular wall 12 causes the container finish tip 21 to further apply pressure to the inner annular wall 11, increasing the sealing effect of the inner seal S1 and balancing the inner seal S1 and the outer seal S2.

The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art is in the field of the present invention, and all the changes or modifications are covered in the protection scope of the present invention.

Claims

1. The container mouth sealing structure comprises a container cover and a container mouth, wherein the container cover is in threaded connection with the container mouth, and the container mouth sealing structure is characterized in that an inner side annular wall and an outer side annular wall are arranged at the top of the container cover, the distance between the inner side annular wall and the outer side annular wall is matched with the thickness of the top end of the container mouth, the inner side annular wall and the outer side annular wall are respectively in sealing fit with the top end of the container mouth in an inner side sealing mode and an outer side sealing mode when the container cover is screwed down, and the top end of the container mouth is in contact with the top wall of the inner side of the container cover to form a middle top.

2. The finish seal structure of claim 1, wherein the inner annular wall and the outer annular wall are downwardly depending annular projections projecting downwardly from a top wall of an inner side of the container lid.

3. The mouth seal structure of claim 1, wherein the lower end of said inner annular wall is lower than the lower end of said outer annular wall, so that when the container closure is tightened, the mouth-end seal portion for performing the inner seal contacts the inner annular wall before the mouth-end seal portion for performing the outer seal contacts the outer annular wall.

4. The container mouth sealing structure according to claim 1, wherein the lower end of said inner annular wall is lower than the lower end of said outer annular wall, so that when the container lid is tightened, the portion of the container mouth top end seal for performing the inner sealing contacts the inner annular wall before the portion of the container mouth top end seal for performing the outer sealing contacts the outer annular wall; the length of the inner annular wall overhang is greater than the length of the outer annular wall overhang.

5. A container finish sealing arrangement according to claim 1, wherein said inner and outer seals and said top seal are linear or face seals.

6. A container mouth sealing structure according to claim 1, wherein said container mouth is shaped in a slightly inwardly tapered configuration adjacent to the top end thereof; on the axial section, the section shape of the top end of the container opening is in a convex head shape.