CN112407575A

CN112407575A - Multilayer cover body

Info

Publication number: CN112407575A
Application number: CN202011375588.0A
Authority: CN
Inventors: 刘文钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-02-26

Abstract

The invention relates to the field of containers, in particular to a multilayer cover body, which mainly solves the problem of poor sealing performance of the cover body in the prior art and comprises a cover body, wherein the cover body comprises a cover plate, a cover wall and a paper board, the cover wall is annularly arranged on the peripheral side of the cover plate, the paper board is arranged on the lower side of the cover plate, the lower edge of the cover wall is outwards provided with an end edge or a curled edge, the cover plate is downwards concavely provided with an annular groove, the side wall of the annular groove and the cover wall form an embedded groove embedded with a paper container, the upper surface of the paper board is adhered to the bottom surface of the annular groove, and the peripheral edge of the paper board transversely and outwards extends.

Description

Multilayer cover body

Technical Field

The invention relates to the field of containers, in particular to a multilayer cover body.

Background

The lunch box or cup made of polystyrene and plastic materials which are used in large quantities in the past is not rotten after being discarded, generates harmful gas after being burnt, and causes serious pollution to the living environment of people. Therefore, many developed countries and developing countries have no provisions for using lunch boxes or cups made of such materials, and for this reason, the industry adopts paper lunch boxes or paper cups meeting the environmental protection requirements to replace lunch boxes made of polystyrene and plastic materials.

The cover body of the traditional paper lunch box or paper cup has the following using states, taking the structure of the lunch box as an example, such as the Chinese patent application number: 201721115363.5, the application document discloses that the box body and the box cover are an integral structure, the cover is closed by turning over the box cover, but the sealing performance of the cover is poor, and the spilling is easily caused; or as in chinese patent application No.: 201921140876.0, the application document discloses that the box body and the box cover are separated, the box body and the box cover are sealed by hot pressing, the sealing performance is improved, but the use convenience is poor, and the cost is high. Taking the structure of paper cups as an example, the paper cups are described in the Chinese patent application No.: 201822230509.1, this application document discloses that the cup is split type structure with the bowl cover, inlays through the cup and locates the realization lid on the bowl cover and close, and this kind of structure can repeatedly be opened, the lid closes, certainly, has also appeared this kind of structure box body and lid cooperation use on the current market, but, the leakproofness of this kind of structure still can not reach user's demand.

Therefore, the applicant has developed a structure capable of enhancing the sealing performance between the lid and the box body through research and improvement on the lid, and has filed the present application.

Disclosure of Invention

Therefore, in view of the above problems, the present invention provides a multi-layer cover, which mainly solves the problem of poor sealing performance of the cover in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a multilayer lid, includes the lid body, the lid body includes the apron, encircles the apron wall of locating apron week and locates the cardboard of apron downside, the lower edge of apron outwards is equipped with end edge or turn-up, the apron is gone up to the undercut and is equipped with an annular groove, and the lateral wall of this annular groove forms the gomphosis groove with the apron wall and with the gomphosis of paper container gomphosis, the upper surface adhesion of cardboard is on the bottom surface of annular groove, and the week edge of this cardboard transversely outwards extends to the gomphosis inslot.

Further, an annular paper board is adhered to the lower end of the end edge or the turned edge, the inner edge of the annular paper board transversely and inwards extends into the embedded groove, and a through groove in an annular structure is formed between the annular paper board and the paper board.

Furthermore, the middle part of the cover plate is provided with a groove which is concave downwards.

Further, the middle of the upper surface of the paperboard is adhered to the bottom surface of the groove.

Further, the depth dimension of the groove is smaller than that of the annular groove, and a protrusion part is convexly arranged in the middle of the paperboard and adhered to the bottom surface of the groove.

Furthermore, the side wall of the bulge part is distributed in an inclined way.

Furthermore, the end edge and/or the cover wall are/is provided with crease lines.

By adopting the technical scheme, the invention has the beneficial effects that: the multilayer cover body has the advantages that the strength is improved by more than one time by arranging the paper boards and combining the design that the grooves on the cover plate, the annular grooves, the convex parts on the paper boards and the paper boards are adhered on the cover plate; meanwhile, under the condition of covering the paper container, the external supporting force is increased, and the sealing performance of the covering is improved; the arranged annular paper board enables the end edge or the turned edge to be shaped and fixed without deformation, and the original shape is kept; the barb structure that forms simultaneously for the lid body is unfavorable for breaking away from, has the design of theftproof function, and it is better to prevent the edge leakage effect.

Drawings

FIG. 1 is a schematic top view of a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a first embodiment of the present invention;

FIG. 3 is a schematic top view of the second embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a second embodiment of the present invention;

FIG. 5 is a schematic top view of the third embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a third embodiment of the present invention;

FIG. 7 is a schematic top view of the fourth embodiment of the present invention;

fig. 8 is a schematic top view of a fifth embodiment of the present invention.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and detailed description.

The embodiment of the invention is as follows:

the first embodiment is as follows:

referring to fig. 1 and 2, a multi-layer cover, which is a circular paper cover in this embodiment, includes a cover body 1, the cover body 1 includes a cover plate 11, a cover wall 12 surrounding the cover plate 11, and a paper sheet 13 disposed on the lower side of the cover plate 11, in this embodiment, the cover plate 11 and the cover wall 12 are an integral structure, the lower edge of the cover wall 12 is outwardly provided with an end edge 2, but may also be bent to form a curled edge, the end edge 2 or the curled edge enables the cover wall 12 to be well shaped and enhances the strength of the cover wall 12, the middle portion of the cover plate 11 is recessed downward to form a groove 3, the cover plate 11 is recessed downward to form an annular groove 4 surrounding the outer side of the groove 3, the arrangement of the groove 3 and the annular groove 4 increases the bending strength of the cover body 1, so that it is not easy to bend, the side wall of the annular groove 4 and the cover wall 12 form an engaging groove 5 engaged with the paper container, the upper surface of the paperboard 13 is adhered to the bottom surface of the annular groove 4, the periphery a of the paperboard 13 extends outwards and transversely into the embedding groove 5, the cover plate 11, the cover wall 12, the groove 3, the annular groove 4 and the end edge 2 are all integrally formed, the forming process refers to a strong forming process of a disposable paper container with application number 202010388779.4, which is applied by the applicant on the 09.05.2020, the upper surface of the paperboard 13 is adhered to the bottom surface of the annular groove 3 on the cover plate 11, the forming of the cover body 1, the groove 3 and the annular groove 4 can be strengthened, the original shape is maintained, the transverse tension of the formed cover plate 11 is increased, the strength of the cover body 1 is further increased, when the periphery a of the paperboard 13 extends outwards and transversely into the embedding groove 5, the upper edge of the paper container is embedded into the embedding groove 5, and the periphery a of the paperboard 13 is abutted against the inner surface of the paper container, the external supporting force of the paper container is increased, so that the upper edge of the paper container is better abutted against the cover body 1, and the paperboard 13 is abutted against the inner wall of the paper container, so that the covering sealing performance of the cover body 1 is greatly improved.

Example two:

referring to fig. 3 and 4, a multi-layer cover is a paper cover with a square structure in the present embodiment, and the design concept of the second embodiment is the same as that of the first embodiment, which is further improved based on the first embodiment, and the difference technical characteristics are as follows: the middle part of the upper surface of the paper board 13 is adhered to the bottom surface of the groove 3, the shaping of the cover body 1, the groove 3 and the annular groove 4 is further strengthened, the original shape is maintained, the transverse tension force of the formed cover plate 11 is increased, the strength of the cover body 1 is further increased, the lower end of the end edge 2 is adhered with the annular paper board 6, the inner edge b of the annular paper board 6 transversely and inwardly extends into the embedding groove 5, a through groove 7 in an annular structure is formed between the annular paper board 6 and the paper board 13, when the annular paper board 6 is adhered to the end edge 2, the fixing strength of the end edge 2 can be improved, meanwhile, the inner edge b of the annular paper board 6 transversely and inwardly extends into the embedding groove 5 and is matched with the peripheral edge a of the paper board 13, so that the side wall of the paper container is well clamped, and the lower end of the upper edge of the paper container is abutted against the inner edge b of the annular paper board 6, the cover of the cover body 1 is not easy to separate, the design with the anti-theft function is formed, the connection sealing performance is improved, and the side leakage prevention effect is better.

Example three:

referring to fig. 5 and 6, a multi-layer cover body is a paper cover body with an oval structure in the present embodiment, and the design concept of the third embodiment is the same as that of the second embodiment, which is further improved on the basis of the second embodiment, and the difference technical characteristics are as follows: the depth dimension of the groove 3 is smaller than that of the annular groove 4, the middle of the paperboard 13 is provided with the protruding portion 8 protruding upwards, the side walls of the protruding portion 8 are distributed in an inclined manner, the protruding portion 8 is adhered to the bottom surface of the groove 3, the bending strength of the paperboard 13 can be improved while the strength of the cover plate 11 is improved, and therefore the strength of the cover body 1 is integrally improved.

Example four:

while the above embodiments have been described with reference to a circular, square and oval paper cover, it is understood that the features disclosed above can be implemented in a strip paper cover, as shown in fig. 7, or other paper covers, and various changes in form and details can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Example five:

referring to fig. 8, a multi-layer cover body is a paper cover body with a circular structure in the present embodiment, and the design concept of the fifth embodiment is the same as that of the second embodiment, which is further improved on the basis of the second embodiment, and the difference technical characteristics are as follows: the end is equipped with crease line 20 on 2, can make better that end edge 2 is stereotyped and form the molding in end edge 2 department through crease line 20, improve the aesthetic property, but the figurative intensity of its formation is lower, disappear easily in piling up or the extrusion, through annular cardboard 6 adhesion end edge 2 on, be used for fixing this end edge 2, can make the molding intensity that the crease line 20 that sets up formed increase, and in the preparation technology, end edge 2 is by the extrusion back, need not through the design, directly form the design through adhesion annular cardboard 6, thereby the processing technology who simplifies.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A multi-layer cover, comprising: the paper container cover comprises a cover body, wherein the cover body comprises a cover plate, a cover wall and a paper plate, the cover wall is annularly arranged on the periphery of the cover plate, the paper plate is arranged on the lower side of the cover plate, an end edge or a turned edge is outwards arranged on the lower edge of the cover wall, an annular groove is concavely arranged on the cover plate, the side wall of the annular groove and the cover wall form an embedded groove embedded with a paper container, the upper surface of the paper plate is adhered to the bottom surface of the annular groove, and the periphery of the paper plate transversely and outwards extends into the embedded groove.

2. The multilayer cover of claim 1, wherein: and an annular paperboard is adhered to the lower end of the end edge or the turned edge, the inner edge of the annular paperboard transversely and inwards extends into the embedded groove, and a through groove in an annular structure is formed between the annular paperboard and the paperboard.

3. The multilayer cover of claim 1 or 2, wherein: the middle part of the cover plate is provided with a groove which is concave downwards.

4. The multilayer cover of claim 3, wherein: the middle of the upper surface of the paperboard is adhered to the bottom surface of the groove.

5. The multilayer cover of claim 4, wherein: the depth dimension of the groove is smaller than that of the annular groove, the middle part of the paperboard is provided with a convex part in an upward protruding mode, and the convex part is adhered to the bottom surface of the groove.

6. The multilayer cover of claim 5, wherein: the side wall of the bulge part is distributed in an inclined way.

7. The multilayer cover of claim 6, wherein: the end edge and/or the cover wall is provided with crease lines.