Water bag

Abstract

A water bag includes a soft bag with an intake, a lid detachably covering the intake of the bag, a hose having en end connected to the bag and a mouthpiece connected to a free end of the hose. The present invention further provides a plastic deformation tube between the hose and the mouthpiece, which may be bent freely and fix the mouthpiece at a position after bending. Therefore, user may bend the plastic deformation tube to have the mouthpiece at a suitable position for drinking without having to hold the mouthpiece by hand.

1 . A water bag, comprising:
 a soft bag with an intake;   a lid detachably covering the intake of the bag;   a hose having en end connected to the bag;   a mouthpiece connected to a free end of the hose; and   a plastic deformation tube between the hose and the mouthpiece, which may be bent freely and fix the mouthpiece at a position after bending to adjust a position of the mouthpiece.   
   
   
       2 . The water bag as defined in  claim 1 , wherein the plastic deformation tube includes a main tube and a metal bar fixed to the main tube, such that the main tube may be bent and fixed at any shape. 
   
   
       3 . The water bag as defined in  claim 2 , wherein the main tube has a sub-tube, in which the metal bar is received. 
   
   
       4 . The water bag as defined in  claim 3 , wherein the sub-tube is on an exterior side of the main tube and parallel to the main tube. 
   
   
       5 . The water bag as defined in  claim 1 , further comprising a water inlet between the plastic deformation tube and the hose. 
   
   
       6 . The water bag as defined in  claim 5 , further comprising a three-way valve between the plastic deformation tube and the hose, which has the water inlet, and a cap detachably covering the water inlet. 
   
   
       7 . The water bag as defined in  claim 6 , wherein the three-way valve has a threaded section on an interior side of the water inlet to be engaged with a water bottle. 
   
   
       8 . The water bag as defined in  claim 7 , wherein the cap has a threaded section to be engaged with the threaded section of the three-way valve. 
   
   
       9 . The water bag as defined in  claim 8 , further comprising a leakage-proof ring between the cap and the water inlet of the three-way valve. 
   
   
       10 . The water bag as defined in  claim 9 , wherein the leakage-proof ring is provided on the cap next to the threaded section. 
   
   
       11 . The water bag as defined in  claim 5 , wherein on an exterior side of the water inlet, a slot is provided, and the cap has a strip and a ring on a free end of the strip to be fitted to the slot. 
   
   
       12 . The water bag as defined in  claim 1 , further comprising a switch between the plastic deformation tube and the mouthpiece. 
   
   
       13 . The water bag as defined in  claim 12 , wherein the switch includes two members connected together and rotated relative to each other, one of which has a tunnel and the other of which has a plug, such that the plug may be moved toward the tunnel and seal the tunnel when the members are turned to a direction, and the plug may be moved away from the tunnel when the members are turned to an opposite direction. 
   
   
       14 . The water bag as defined in  claim 1 , wherein the mouthpiece has a flexible body with a tunnel therein, a closed end, and an elongated crack on the closed end, such that the crack is closed at a normal condition and is opened when the flexible body is pressed along an elongated direction of the crack. 
   
   
       15 . The water bag as defined in  claim 14 , wherein the mouthpiece further has a cap detachably covering the closed end of the flexible body. 
   
   
       16 . The water bag as defined in  claim 15 , wherein the mouthpiece has a slot, and the cap has a strip and a ring on a free end of the strip to be fitted to the slot of the mouthpiece. 
   
   
       17 . The water bag as defined in  claim 14 , wherein the tunnel has a quadrilateral section adjacent to the crack, and the elongated direction of the crack extends along a diagonal line of the quadrilateral section. 
   
   
       18 . The water bag as defined in  claim 17 , wherein the elongated direction of the crack extends along a short diagonal line of the quadrilateral section. 
   
   
       19 . The water bag as defined in  claim 1 , further comprising a lock device to be mounted on a belt of a backpack to hold the hose or the plastic deformation tube. 
   
   
       20 . The water bag as defined in  claim 19 , wherein the lock device has a C-shaped clip to hold the hose.