Container protective sleeve

Abstract

A container protective sleeve is provided. The container protective sleeve is configured to be sleeved around a container bottom portion of a container. The container protective sleeve includes a protective sleeve body. The protective sleeve body is made of rubber or a silicone elastic material. The protective sleeve body includes a bottom board portion and a side wall portion surrounding an outer periphery of the bottom board portion. The side wall portion has at least one concave portion at one side of the side wall portion corresponding to the bottom board portion and at least one extension fin relatively protruding from the at least one concave portion. The at least one extension fin extends away from the bottom board portion.

What is claimed is: 
     
         1 . A container protective sleeve configured to be sleeved around a container bottom portion of a container, the container protective sleeve comprising:
 a protective sleeve body having a bottom board portion and a side wall portion surrounding an outer periphery of the bottom board portion, wherein the bottom board portion and an inner side surface of the side wall portion jointly define an accommodating space configured to be sleeved around the container bottom portion of the container, wherein the side wall portion has at least one concave portion at one side opposite to the bottom board portion, and the side wall portion has at least one extension fin protruding from the at least one concave portion, and wherein the at least one extension fin extends away from the bottom board portion.   
     
     
         2 . The container protective sleeve according to  claim 1 , wherein the protective sleeve body is made of silicone or a rubber elastic material, and the bottom board portion and the side wall portion are formed as a one-piece structure. 
     
     
         3 . The container protective sleeve according to  claim 1 , wherein the protective sleeve body is configured to be sleeved around the container bottom portion of the container in tight cooperation. 
     
     
         4 . The container protective sleeve according to  claim 1 , wherein a height of the protective sleeve body is less than a diameter of the protective sleeve body, and a height difference between the at least one extension fin and the at least one concave portion is one fifth to two thirds of the height of protective sleeve body. 
     
     
         5 . The container protective sleeve according to  claim 1 , wherein an edge of the at least one concave portion of the side wall portion and an edge of the at least one extension fin of the side wall portion are connected in an arc-shaped curve. 
     
     
         6 . The container protective sleeve according to  claim 1 , wherein a flange portion is located at an edge of the at least one concave portion of the side wall portion and at an edge of the at least one extension fin of the side wall portion. 
     
     
         7 . The container protective sleeve according to  claim 1 , wherein a thru-hole is located at a center of the bottom board portion. 
     
     
         8 . The container protective sleeve according to  claim 1 , wherein a thickness of the protective sleeve body is within a range from 1 millimeter to 5 millimeters.