A bottle cap

Abstract

The present invention provides a bottle cap, comprising a covering body and at least two locking bodies; wherein, a cylindrical hollow accommodating space is presented inside the covering body; the locking bodies are in an arc plate shape, and locking structures are arranged on the inner circular sides of the locking bodies; at least two of the locking bodies are assembled to form a cylindrical locking inner shell; the locking inner shell is adapted to be placed inside the accommodating space; the materials of the covering body and the locking bodies are both plant fibers. For the bottle cap provided by the present invention, by dividing the bottle cap into a covering body arranged on the outside and several locking bodies arranged inside the covering body and provided with locking structures, the bottle cap can be produced by existing paper-plastic processes, thus solving the problem that it is difficult to manufacture bottle caps made of paper-plastic materials at present.

Description

Technical Field

[0001] The present invention relates to the technical field of paper-plastic, and particularly to a bottle cap. Background Art

[0002] The progress of technology has brought a lot of convenience to human life, but at the same time, it has inevitably brought a lot of pollution to the environment. For example, beverage containers, shopping bags, electrical appliance shells, children's toys, various household items, etc. that can be seen everywhere in life are almost all made of plastic, or at least part of the components are made of plastic; since the invention of plastic, its application has penetrated into all aspects of human life. Correspondingly, there are more and more plastic waste; due to the characteristics of plastic being difficult to decompose, plastic waste has caused great pollution to the earth's environment.

[0003] In order to solve the problem that plastic waste seriously pollutes the earth's environment, many new degradable environmental protection materials have been developed to replace non-degradable plastics; for example, in order to reduce the use of plastic, the materials of many containers such as bottles or cans are selected as paper-plastic materials, which greatly reduces the use of plastic; however, due to the current limitations of the paper-plastic process, it is difficult to make an internal thread structure inside a cylindrical bottle cap, resulting in difficulty in making a bottle cap made of paper-plastic material, so that the existing paper-plastic containers can only choose bottle caps made of plastic material, which is not conducive to reducing the use of plastic. Summary of the Invention

[0004] The problem solved by the present invention is that it is currently difficult to make a bottle cap made of paper-plastic material.

[0005] To solve the above problems, the present invention provides a bottle cap, including a covering body and at least two locking bodies; wherein,

[0006] The interior of the covering body presents a cylindrical hollow accommodating space;

[0007] The locking body is in an arc plate shape, and a locking structure is provided on the inner circular side of the locking body;

[0008] At least two of the locking bodies are combined to form a cylindrical locking inner shell;

[0009] The locking inner shell is adapted to be placed in the accommodating space;

[0010] The materials of the covering body and the locking body are both plant fibers.

[0011] Optionally, the number of the locking bodies is two.

[0012] Optionally, at least two grooves are provided at the open end of the covering body, and a connecting section is provided on the locking body, and the connecting section is adapted to be connected to the covering body through the grooves.

[0013] Optionally, the locking solid is bonded to the covering body.

[0014] Optionally, the locking structure is a plurality of convex structures.

[0015] Optionally, the convex structure is a circular protrusion.

[0016] Optionally, the locking structure is a threaded structure.

[0017] Optionally, an anti-slip structure is provided on the outer circumference of the covering body.

[0018] Optionally, the anti-slip structure is a plurality of alternately arranged anti-slip grooves.

[0019] Optionally, the anti-slip grooves are distributed in the vertical direction.

[0020] Compared with the prior art, the bottle cap provided by the present invention has the following advantages:

[0021] For the bottle cap provided by the present invention, by dividing the bottle cap into a covering body arranged on the outside and a plurality of locking solids arranged in the covering body and provided with a locking structure, the bottle cap can be produced by the existing paper-plastic process, thus solving the problem that it is difficult to produce a paper-plastic bottle cap at present. Description of the Drawings

[0022] Figure 1 is an exploded view of the bottle cap in the present invention Figure 1 ;

[0023] Figure 2 is an exploded view of the bottle cap in the present invention Figure 2 ;

[0024] Figure 3 is an exploded view of the bottle cap in the present invention Figure 3 ;

[0025] Figure 4 is an exploded view of the bottle cap in the present invention Figure 4 ;

[0026] Figure 5 is an exploded view of the bottle cap in the present invention Figure 5 ;

[0027] Figure 6 is a schematic diagram of the assembly process of the bottle cap in the present invention;

[0028] Figure 7 is a simplified structural diagram of the bottle cap in the present invention;

[0029] Figure 8 is Figure 7 a cross-sectional view of;

[0030] Figure 9This is a schematic diagram of the assembly of the bottle cap and the bottle body in the present invention;

[0031] Figure 10 is Figure 9 a cross-sectional view of.

[0032] Explanation of reference numerals:

[0033] 1 - Cladding body; 11 - Accommodating space; 12 - Groove; 13 - Anti-slip structure; 2 - Locking body; 21 - Locking structure; 22 - Connecting section. Specific embodiments

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0036] In addition, the terms "first" and "second" are only used for simplifying the description and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0037] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the first feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0038] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of specific embodiments of the present invention will be given in conjunction with the accompanying drawings.

[0039] Since it is currently difficult to manufacture a paper-plastic bottle cap with internal threads, the existing paper-plastic containers can only choose plastic bottle caps or, by means of adhesion, use a disposable paper-plastic cover plate structure for sealing. Once opened, it cannot be sealed again, which is inconvenient to use.

[0040] To solve the problem that it is currently difficult to manufacture a paper-plastic bottle cap, the present invention provides a bottle cap. Refer to Figure 1 、 Figure 2 As shown, the bottle cap includes a covering body 1 and at least two locking bodies 2. Among them, a cylindrical hollow accommodating space 11 is provided inside the covering body 1, that is, the inside of the covering body 1 presents a cylindrical hollow accommodating space 11. The locking body 2 is in an arc plate shape, and a locking structure 21 is provided on the inner circular side of the locking body 2. At least two locking bodies 2 are assembled to form a cylindrical locking inner shell. The locking inner shell is adapted to be placed in the accommodating space 11, so that the covering body 1 covers the outside of the locking inner shell, and the covering body 1 is used to limit and fix the locking inner shell. The materials of the covering body 1 and the locking body 2 are both plant fibers. Both the covering body 1 and the locking body 2 can be manufactured by a plant fiber pulping and forming process.

[0041] Specifically, the covering body 1 includes a cylindrical side wall and a bottom plate connected to one end of the side wall. The accommodating space 11 is formed by enclosing with the side wall and the bottom plate together; the number of the locking bodies 2 can be determined according to the radian of the locking bodies 2 and the accommodating space 11; the sizes of several locking bodies 2, that is, the radian of each locking body 2, can be the same or different; for simplifying the structure and reducing the manufacturing and assembly difficulty, it is preferred in this application that the structures and sizes of all the locking bodies 2 are the same; for facilitating the connection of the bottle cap to the bottle mouth with external threads or other container mouths by screwing, it is preferred in this application that a locking structure 21 is arranged in the locking body 2. Specifically, the locking structure 21 is arranged on the inner arc surface of each locking body 2. Thus, when several locking bodies 2 are assembled to form a cylindrical locking inner shell, the locking structures 21 on the inner arc surfaces of each locking body 2 are connected in sequence to form a complete locking structure on the inner wall of the cylindrical locking inner shell, which is suitable for connecting with the bottle mouth by screwing or other means.

[0042] During assembly, each locking body 2 can be assembled in sequence to form a cylindrical locking inner shell first, and then the cylindrical locking inner shell is placed in the accommodating space 11 in the covering body 1, so that one end of the locking inner shell abuts against the bottom plate of the covering body 1, and the outer wall of the collarbone inner shell abuts against the inner wall of the accommodating space 11 to complete the assembly; or each locking body 2 can be placed in the accommodating space 11 in sequence for assembly respectively, so as to limit and fix the locking inner shell formed by several locking bodies 2 through the covering body 1, and connect with the connection structure such as the external thread of the bottle mouth through the locking structure 21 on the inner wall of the locking inner shell.

[0043] For facilitating the production by the paper-plastic production process, the bottle cap in this application is designed as a split structure including the covering body 1 and several locking bodies 2. Since each split structure can be produced by the paper-plastic process, therefore, the bottle cap provided in this application can be produced by the paper-plastic process for each split structure respectively first, and then each split structure is assembled, and a bottle cap made of plant fiber material and having an internal locking structure 21 suitable for connecting with the external thread can be obtained. By replacing the plastic material bottle cap in the prior art with the paper-plastic material bottle cap, the use of plastic can be greatly reduced, the emission of plastic waste can be reduced, and the environmental pollution problem can be alleviated.

[0044] The bottle cap provided by the present invention divides the bottle cap into a covering body 1 arranged on the outside and several locking bodies 2 arranged in the covering body 1 and provided with a locking structure 21, so that the bottle cap can be produced by the existing paper-plastic process, thus solving the problem that it is difficult to produce a paper-plastic material bottle cap at present.

[0045] To simplify the structure of the bottle cap, the present application preferably sets the number of locking solids 2 to two. The cross-sections of the two locking solids 2 are both semi-circular structures, so that a cylindrical locking inner shell can be formed by fitting the two locking solids 2 together, while realizing the manufacture of the bottle cap made of plant fiber material and simplifying the production process and assembly process of the bottle cap.

[0046] Furthermore, to improve the stability of the bottle cap structure, as shown in Figures 3 to 5 the present application preferably sets at least two grooves 12 at the open end of the covering body 1, that is, the end far from the bottom plate. The specific number of the grooves 12 is the same as the number of the locking solids 2; a connecting section 22 is provided on the locking solid 2, and the connecting section 22 is adapted to be connected to the covering body 1 through the groove 12.

[0047] Specifically, as shown in Figure 6 each locking solid 2 is connected to the corresponding groove 12 through the connecting section 22, and when the locking solids 2 are not assembled in the accommodating space 11, the locking structures 21 in the locking solids 2 are all located on the side close to the bottom plate of the covering body 1; during assembly, taking advantage of the good bendability and toughness of the paper-plastic product, each locking solid 2 bends the connecting section 22 into the accommodating space 11 in sequence until the locking solid 2 is placed in the accommodating space 11. At this time, the connecting section 22 fills the groove 12; after each locking solid 2 is placed in the accommodating space 11 according to the above method in sequence, as shown in Figure 7 、 Figure 8 the locking structures 21 on each locking solid 2 are all located on the inner wall and are connected in sequence to form a connecting structure adapted to be connected to the external thread of the bottle mouth.

[0048] Among them, the connecting section 22 can be connected to the covering body 1 by means of bonding or the like.

[0049] Furthermore, when the locking solids 2 and the covering body 1 are assembled, the connection strength between the locking solids 2 and the covering body 1 can be improved by means of interference fit to improve the stability of the bottle cap structure; they can also be connected by means of bonding. The present application preferably bonds the locking solids 2 and the covering body 1, that is, the outer arc surfaces of the locking solids 2 are connected to the inner wall of the accommodating space 11 by bonding.

[0050] To facilitate the connection of the bottle cap to structures with external threads such as the bottle mouth, the locking structure 21 in the present application can be several convex structures.

[0051] Specifically, several convex structures are set as several circular ring structures adapted to the external thread. When connected to the external thread structure, through several annular convex structures, they are sequentially screwed into the corresponding groove parts in the external thread, so that the connection with the external thread can be realized by rotation, and thus the sealing can be realized.

[0052] The shapes of some of the convex structures can be any regular or irregular geometric shapes. For the convenience of tightening and reducing the tightening difficulty, the present application preferably uses circular protrusions as the convex structures, so as to reduce the tightening resistance by the contact between the circular protrusions and the corresponding groove structures during the tightening process.

[0053] Furthermore, the locking structure 21 provided on the inner arc surface of the locking body 2 can also be a thread structure. Then, by fitting a number of locking bodies 2 together, an internal thread adapted to the external thread is formed on the inner wall of the locking inner shell. See Figure 9 、 Figure 10 As shown, and then by the cooperation of the internal thread and the external thread, the tightening and sealing of the container can be achieved.

[0054] For the convenience of tightening the bottle cap with the bottle body, the present application preferably provides an anti-slip structure 13 on the outer circumference of the covering body 1, and the friction between the bottle cap and the hand is increased through the anti-slip structure 13 during the tightening process, thereby reducing the difficulty of tightening and loosening.

[0055] The anti-slip structure 13 can be structures such as protrusions provided on the outside of the covering body 1. The present application preferably uses a number of alternately arranged anti-slip grooves as the anti-slip structure 13, so as to help increase the aesthetic degree while reducing the difficulty of tightening and loosening.

[0056] Furthermore, the present application preferably distributes the anti-slip grooves in the vertical direction, that is, the anti-slip grooves are distributed on the side wall of the covering body 1 along a direction perpendicular to the bottom plate of the covering body 1, so that when tightening or loosening the bottle cap, the direction of the force applied to the bottle cap is perpendicular to the distribution direction of the anti-slip grooves, thereby improving the anti-slip effect.

[0057] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A bottle cap, characterized in that, It includes a cladding body (1) and at least two locking bodies (2); wherein, The cladding body (1) includes a cylindrical side wall and a bottom plate connected to one end of the side wall. The side wall and the bottom plate together enclose an inner cylindrical hollow accommodating space (11); The locking body (2) is in the shape of an arc plate, and a locking structure (21) is provided on the inner circular side of the locking body (2); At least two of the locking bodies (2) are assembled to form a cylindrical locking inner shell; The locking inner shell is adapted to be placed in the accommodating space (11); Each locking body (2) further includes a connecting section (22), and each locking body (2) is connected to the open end of the cladding body (1), that is, the end far from the bottom plate, through the connecting section (22); Each locking body (2) is placed in the accommodating space (11) by bending the connecting section (22) into the accommodating space (11), so that one end of the locking inner shell abuts against the bottom plate of the cladding body (1), and the outer wall of the locking inner shell abuts against the inner wall of the accommodating space (11); The locking structures (21) on each locking body (2) form a connecting structure adapted to be connected to the external thread of the bottle mouth; The materials of the cladding body (1) and the locking body (2) are both plant fibers.

2. The bottle cap according to claim 1, characterized in that, The number of the locking bodies (2) is two.

3. The bottle cap according to claim 1, characterized in that, At least two grooves (12) are provided at the open end of the cladding body (1). The cladding body (1) is connected to the connecting section (22) through the grooves (12). After each locking body (2) is placed in the accommodating space (11), the connecting section (22) is filled at the grooves (12).

4. The bottle cap according to any one of claims 1 to 3, characterized in that, The locking structure (21) is a number of protruding structures.

5. The bottle cap according to claim 4, wherein The protruding structure is a circular protrusion.

6. The bottle cap according to any one of claims 1 to 3, characterized in that, The locking structure (21) is a thread structure.

7. The bottle cap according to any one of claims 1 to 3, characterized in that, An anti-slip structure (13) is provided on the outer circumference of the cladding body (1).

8. The bottle cap according to claim 7, wherein The anti-slip structure (13) is a number of alternately arranged anti-slip grooves.

9. The bottle cap according to claim 8, wherein, The anti-slip grooves are distributed in the vertical direction.

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