Abstract: A bottle cap assembly includes a mount, a hose unit connected to the mount, a mouthpiece unit and a dust cap. A lug is connected to the mount and the dust cap is pivotably connected to the lug. A tubular portion is located in the mount and has two spiral ribs. The mouthpiece unit includes a rotatable member, a seal ring and a mouthpiece. The rotatable member is engaged within the tubular portion and has spiral grooves with which the spiral ribs are engaged. The rotatable member has a knob and has a passage is defined therethrough. The seal member seals the mouthpiece unit when the rotatable member is located at the lowest position. When the knob is rotated, the spiral grooves moved upward along with the spiral rib and the passage is separated from the seal member to open the mouthpiece unit.

Abstract: A coupling assembly includes a female unit and a male unit which is removably connected with the female unit. A valve unit is located in the female unit and includes a core with two flexible disks on two ends thereof. A flange extends radially outward from a lower end of the core and is rested on a support frame in the female unit. The core extends through a through hole in a lower end of sleeve in the female unit. A plurality of paths are defined through the lower end of the sleeve so that by shifting the core to let either of two flexible disks to seal the paths in one direction, the direction of fluid flow can be controlled. The movement of the core is made by moving the sleeve.

Abstract: A mouthpiece assembly includes a base connected with a hose and the base has a base tube in which a spring is received and a seal member is inserted in the base tube. The base tube has two symmetrical outlet notches defined in a top edge thereof and the seal member has two outlet holes which can be in alignment with the outlet notches when the seal member is moved to compress the spring. A mouthpiece is mounted on the base tube and has an outlet which is sealed by the seal piece on the seal member so that when the user squeezes the mouthpiece to move the seal member, the outlet is opened. A cap is removably mounted on the mouthpiece and can be positioned on two lugs on the base when being removed from the mouthpiece.

Abstract: A coupling assembly includes a female unit and a male unit which is removably connected with the female unit. A valve unit is located in the female unit and includes a core with two flexible disks on two ends thereof. A flange extends radially outward from a lower end of the core and is rested on a support frame in the female unit. The core extends through a through hole in a lower end of sleeve in the female unit. A plurality of paths are defined through the lower end of the sleeve so that by shifting the core to let either of two flexible disks to seal the paths in one direction, the direction of fluid flow can be controlled. The movement of the core is made by moving the sleeve.

Abstract: A valve assembly for liquid containers includes a base fixed on the water bottle and a connector unit which is connected to the base by a locking member. Each of the base and the connector unit includes a valve piece which is biased by a spring to seal the base and the connector unit respectively. When the connector unit is connected to the base, the two valve pieces push against to each other to compress the two respective springs so as to release the sealing status of both of the base and the connector unit. The connector unit includes a connection portion and a hose can be connected to the connection portion. The user can have the water in the bottle via the hose while the connection portion can be rotated 360 degrees.

Abstract: A valve assembly for liquid containers includes a base fixed on the water bottle and a connector unit which is connected to the base by a locking member. Each of the base and the connector unit includes a valve piece which is biased by a spring to seal the base and the connector unit respectively. When the connector unit is connected to the base, the two valve pieces push against to each other to compress the two respective springs so as to release the sealing status of both of the base and the connector unit. The connector unit includes a connection portion and a hose can be connected to the connection portion. The user can have the water in the bottle via the hose while the connection portion can be rotated 360 degrees.

Abstract: A mouthpiece assembly includes a base connected with a hose and the base has a base tube in which a spring is received and a seal member is inserted in the base tube. The base tube has two symmetrical outlet notches defined in a top edge thereof and the seal member has two outlet holes which can be in alignment with the outlet notches when the seal member is moved to compress the spring. A mouthpiece is mounted on the base tube and has an outlet which is sealed by the seal piece on the seal member so that when the user squeezes the mouthpiece to move the seal member, the outlet is opened. A cap is removably mounted on the mouthpiece and can be positioned on two lugs on the base when being removed from the mouthpiece.

Abstract: A mouthpiece assembly includes a mouthpiece mounted on a movable part which is mounted on an insertion tube of a base. The base is connected with a hose and two locking members extend from the base so as to hook the movable part. Two operation plates are connected on two sides of the movable part and two covers are pivotably connected with the two operation plates. The two covers enclose the mouthpiece. When the two operation plates are moved upward, the movable part is pulled away from the base so as to open the outlets defined in the movable part and the two covers are pivoted outward so that the mouthpiece is accessible. When pulling the operation plates downward, the movable part is re-seal the outlets in the base an the covers are pivoted inward to enclose the mouthpiece again.

Abstract: A water supply device includes a pipe connected between a water reservoir and a connector which has an opening defined through a wall thereof. A mouth mount has a first end connected to a valve which is rotatably inserted in the connector. The valve includes a hole defined in a wall thereof and the hole can be adjusted to communicate with the opening by rotating the mouth mount. A slit is defined through a second end of the mouth mount so that the user may deform the slit into a hole to suck water from the reservoir.

Abstract: A water supply device includes a pipe connected between a water reservoir and a connector which has an opening defined through a wall thereof. A mouth mount has a first end connected to a valve which is rotatably inserted in the connector. The valve includes a hole defined in a wall thereof and the hole can be adjusted to communicate with the opening by rotating the mouth mount. A slit is defined through a second end of the mouth mount so that the user may deform the slit into a hole to suck water from the reservoir.