Drinking bottle

Abstract

A drinking bottle includes: a bottle body defining a chamber therein and having a top connecting portion and a bottom connecting portion that defines a bottom opening of the bottle body; a bottom cap coupled detachably to the bottom connecting portion of the bottle body for covering sealingly and uncovering the bottom opening of the bottle body; a hollow inner body disposed in the chamber of the bottle body, defining an inner space therein, and having a bottom connecting portion that defines a bottom opening of the inner body and that is coupled detachably to the bottom cap; and a sealing member coupled detachably to the bottom connecting portion of the inner body for covering sealingly and uncovering the bottom opening of the inner body.

1 . A drinking bottle comprising:
 a bottle body defining a chamber therein and having a top connecting portion and a bottom connecting portion that defines a bottom opening of said bottle body;   a bottom cap coupled detachably to said bottom connecting portion of said bottle body for covering sealingly and uncovering said bottom opening of said bottle body;   a hollow inner body disposed in said chamber of said bottle body, defining an inner space therein, and having a top closed end and a bottom connecting portion that defines a bottom opening of said inner body and that is coupled detachably to said bottom cap; and   a sealing member coupled detachably to said bottom connecting portion of said inner body for covering sealingly and uncovering said bottom opening of said inner body.   
   
   
       2 . The drinking bottle as claimed in  claim 1 , wherein said bottom cap engages threadedly said bottom connecting portion of said bottle body. 
   
   
       3 . The drinking bottle as claimed in  claim 2 , wherein said bottom cap is formed with an annular wall extending into said chamber of said bottle body and engaging threadedly said bottom connecting portion of said inner body. 
   
   
       4 . The drinking bottle as claimed in  claim 1 , wherein said sealing member includes a plug that is fitted sealingly into said bottom connecting portion of said inner body. 
   
   
       5 . The drinking bottle as claimed in  claim 1 , further comprising a top cap coupled detachably to said top connecting portion of said bottle body. 
   
   
       6 . The drinking bottle as claimed in  claim 5 , wherein said top connecting portion of said bottle body has a lower end, said bottle body further having an upper portion enlarged in cross-section from said lower end of said top connecting portion, and a middle portion extending from said upper portion and cooperating with said upper portion to define a shoulder therebetween, said top cap including a dome-shaped wall having an inner surface and a lower end, and an annular connecting wall having a lower end, extending from said inner surface of said dome-shaped wall, and threadedly engageable with said top connecting portion of said bottle body, said dome-shaped wall enclosing said top connecting portion and said upper portion of said bottle body and said lower end of said dome-shaped wall abutting against said shoulder when said annular connecting wall of said top cap engages threadedly said top connecting portion of said bottle body and when said lower end of said annular connecting wall is disposed closest to said lower end of said top connecting portion. 
   
   
       7 . The drinking bottle as claimed in  claim 6 , wherein said dome-shaped wall is formed with a central through-hole, said top cap further including an annular central wall extending from a periphery of said central through-hole in a direction opposite to said annular connecting wall, said drinking bottle further comprising a valve-supporting member connected to said inner surface of said dome-shaped wall and having an annular plate disposed coaxially with said annular central wall within said annular connecting wall, and a valve including an inner tube extending axially from said annular plate of said valve-supporting member into and through said annular central wall of said top cap, and an outer tube fitted into and in sliding contact with said annular central wall of said top cap, sleeved around said inner tube to define a fluid channel therebetween, and having a lower end, said outer tube being movable relative to said inner tube between a closed position, in which said lower end of said outer tube abuts sealingly against said annular plate of said valve-supporting member so as to prevent fluid communication between said fluid channel and said chamber of said bottle body, and an opened position, in which said lower end of said outer tube is spaced apart from said annular plate of said valve-supporting member so as to permit fluid communication between said fluid channel and said chamber of said bottle body.