Bottle cap, container and method for opening the container

Abstract

The present disclosure provides a bottle cap, a container and a method for opening the container. The bottle cap includes a cap body and a cap ring which are connected. The cap body is provided with an extension strip, a first end of the extension strip is integrally connected to the cap body. The cap ring is provided with an avoidance part for the extension strip to pass through and a U-shaped strip encircling the extension strip, an opening of the U-shaped strip is integrally connected to the avoidance part and a bottom of the U-shaped strip is integrally connected to a second end of the extension strip. The bottle cap of the present disclosure is always connected to the container and will not be lost, so as to facilitate users to use and improve the recycling rate of the bottle cap.

What is claimed is: 
     
         1 . A bottle cap comprising a cap body and a cap ring which are connected;
 wherein the cap body is provided with an extension strip, and a first end of the extension strip is integrally connected to the cap body;   wherein the cap ring is provided with an avoidance part for the extension strip to pass through and a U-shaped strip encircling the extension strip, an opening of the U-shaped strip is integrally connected to the avoidance part, and a bottom of the U-shaped strip is integrally connected to a second end of the extension strip;   wherein breakable connecting teeth are provided between the cap body and the cap ring, between side walls of the extension strip and the U-shaped strip, and between side walls of the U-shaped strip and the avoidance part.   
     
     
         2 . The bottle cap according to  claim 1 , wherein during an opening process of the bottle cap, as the cap body spirals up along a bottle mouth of a container, the cap ring is buckled to a limiting ring under the bottle mouth and rotates, the connecting teeth are broken, and the extension strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth. 
     
     
         3 . The bottle cap according to  claim 2 , wherein a total length of the extension strip and the U-shaped strip when pulled apart is greater than a height of the bottle mouth. 
     
     
         4 . The bottle cap according to  claim 2 , wherein when the opening process of the bottle cap is completed, the cap body is connected to the limiting ring through the extension strip, the U-shaped strip and the cap ring in turn. 
     
     
         5 . The bottle cap according to  claim 1 , wherein when the bottle cap is in an initial closed state, the cap body is tightened on a bottle mouth of a container, the cap ring is fastened on a limiting ring under the bottle mouth, and the extension strip and the U-shaped strip are locked on the avoidance part. 
     
     
         6 . The bottle cap according to  claim 1 , wherein the extension strip starts from an opening end of the cap body and extends in a direction away from a closed end of the cap body;
 wherein the avoidance part is formed as a door-shaped groove with a disconnected part at a top, the extension strip passes through the disconnected part of the door-shaped groove, and the opening of the U-shaped strip is integrally connected to a lower end face of the disconnected part.   
     
     
         7 . The bottle cap according to  claim 6 , wherein the extension strip and the U-shaped strip are fully accommodated in the avoidance part, or the extension strip and the U-shaped strip are partially accommodated in the avoidance part. 
     
     
         8 . The bottle cap according to  claim 1 , wherein the cap body, the extension strip, the U-shaped strip, the cap ring and the connecting teeth are integrally injection molded. 
     
     
         9 . A container comprising a bottle mouth provided with screw threads and a limiting ring disposed under the bottle mouth, wherein the container further comprises the bottle cap according to any one of  claims 1-8 ;
 wherein the cap body is screwed on the bottle mouth, the screw threads are at least used to tighten the cap body when in an initial closed state and to provide a screw-up stroke for the cap body during an opening process;   wherein the cap ring is buckled on the limiting ring, the limiting ring is used to fasten the cap ring when in the initial closed state and to always limit axial movement of the cap ring.   
     
     
         10 . The container according to  claim 9  further comprising a clamping ring provided on a bottle neck of the container;
 wherein when an outer diameter of the clamping ring is greater than an outer diameter of the cap ring, both the extension strip and the U-shaped strip are in a stepped shape to avoid the clamping ring and extend toward a bottle body of the container. 
 
     
     
         11 . A method for opening a container, applied on the container according to  claim 9 or 10 , wherein the method comprises a first stroke and a second stroke of continuously rotating the bottle body in a first clockwise direction;
 wherein during the first stroke, as the cap body spirals up, the cap ring rotates and the connecting teeth are broken;   wherein during the second stroke, as the cap body spirals up, the cap ring rotates and the extension strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth and is connected to the limiting ring through the cap ring.   
     
     
         1 . A bottle cap comprising a cap body and a cap ring which are connected;
 wherein the cap body is provided with an extension strip, and a first end of the extension strip is integrally connected to the cap body;   wherein the cap ring is provided with an avoidance part for the extension strip to pass through and a U-shaped strip encircling the extension strip, an opening of the U-shaped strip is integrally connected to the avoidance part, and a bottom of the U-shaped strip is integrally connected to a second end of the extension strip;   wherein breakable connecting teeth are provided between the cap body and the cap ring, between side walls of the extension strip and the U-shaped strip, and between side walls of the U-shaped strip and the avoidance part.   
     
     
         2 . The bottle cap according to  claim 1 , wherein during an opening process of the bottle cap, as the cap body spirals up along a bottle mouth of a container, the cap ring is buckled to a limiting ring under the bottle mouth and rotates, the connecting teeth are broken, and the extension strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth. 
     
     
         3 . The bottle cap according to  claim 2 , wherein a total length of the extension strip and the U-shaped strip when pulled apart is greater than a height of the bottle mouth. 
     
     
         4 . The bottle cap according to  claim 2 , wherein when the opening process of the bottle cap is completed, the cap body is connected to the limiting ring through the extension strip, the U-shaped strip and the cap ring in turn. 
     
     
         5 . The bottle cap according to  claim 1 , wherein when the bottle cap is in an initial closed state, the cap body is tightened on a bottle mouth of a container, the cap ring is fastened on a limiting ring under the bottle mouth, and the extension strip and the U-shaped strip are locked on the avoidance part. 
     
     
         6 . The bottle cap according to  claim 1 , wherein the extension strip starts from an opening end of the cap body and extends in a direction away from a closed end of the cap body;
 wherein the avoidance part is formed as a door-shaped groove with a disconnected part at a top, the extension strip passes through the disconnected part of the door-shaped groove, and the opening of the U-shaped strip is integrally connected to a lower end face of the disconnected part.   
     
     
         7 . The bottle cap according to  claim 6 , wherein the extension strip and the U-shaped strip are fully accommodated in the avoidance part, or the extension strip and the U-shaped strip are partially accommodated in the avoidance part. 
     
     
         8 . The bottle cap according to  claim 1 , wherein the cap body, the extension strip, the U-shaped strip, the cap ring and the connecting teeth are integrally injection molded. 
     
     
         9 . A container comprising a bottle mouth provided with screw threads and a limiting ring disposed under the bottle mouth, wherein the container further comprises the bottle cap according to  claim 1 ;
 wherein the cap body is screwed on the bottle mouth, the screw threads are at least used to tighten the cap body when in an initial closed state and to provide a screw-up stroke for the cap body during an opening process;   wherein the cap ring is buckled on the limiting ring, the limiting ring is used to fasten the cap ring when in the initial closed state and to always limit axial movement of the cap ring.   
     
     
         10 . The container according to  claim 9  further comprising a clamping ring provided on a bottle neck of the container;
 wherein when an outer diameter of the clamping ring is greater than an outer diameter of the cap ring, both the extension strip and the U-shaped strip are in a stepped shape to avoid the clamping ring and extend toward a bottle body of the container. 
 
     
     
         11 . A method for opening a container, applied on the container according to  claim 9 , wherein the method comprises a first stroke and a second stroke of continuously rotating the bottle body in a first clockwise direction;
 wherein during the first stroke, as the cap body spirals up, the cap ring rotates and the connecting teeth are broken;   wherein during the second stroke, as the cap body spirals up, the cap ring rotates and the extension strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth and is connected to the limiting ring through the cap ring.