Patent ID: 8656964

Claim:
An auto-filling assembly for a refillable sprayer, comprising: a base device having: a base having a top face; an oil tank mounted in the base; and a connecting jacket securely mounted on the top face of the base and having: a bottom end; a top end; an external surface; a connecting disk movably mounted in the connecting jacket at the bottom end of the connecting jacket; a switch mounted on the external surface of the connecting jacket near the bottom end of the connecting jacket and having a touching leg extending into the connecting jacket; and an engaging mount securely mounted on the external surface of the connecting jacket near the top end of the connecting jacket; a controlling device connected to the base device and having: an inlet valve mounted on the top face of the base and having an air pipe connected to the switch; a first linking valve mounted on the top face of the base, connected to the switch and having: a first inlet-connecting pipe connected to the switch and communicating with the air pipe of the inlet valve via the switch; and a first outlet-connecting pipe; a gas-controlling valve mounted on the top face of the base, connected to the first linking valve and having: an inlet controlling pipe; and an outlet controlling pipe; a second linking valve mounted on the top face of the base, connected to the outlet controlling pipe of the gas-controlling valve and having: a second inlet-connecting pipe; and a second outlet-connecting pipe; and a triple valve mounted on the top face of the base, connected to the second outlet-connecting pipe of the second linking valve and having: an oil entrance pipe; and an oil-gas filling pipe connected to a center of the connecting disk via the bottom end of the connecting jacket; and a filling device mounted on the base device, connected to the controlling device and having: a storage bottle transversally mounted on the top face of the base, connected to the oil entrance pipe and the inlet controlling pipe of the controlling device and having: a distal end; a proximal end; an extruding shaft movably connected to the distal end of the storage bottle and having a free end opposite to the storage bottle; a touching panel connected to the free end of the extruding shaft and having an inner side and an outer side; and a returning spring mounted around the extruding shaft and abutting the inner side of the touching panel and the distal end of the storage bottle; a release valve securely mounted on the top face of the base, connected to the first outlet-connecting pipe of the first linking valve and selectively abutting the outer side of the touching panel of the storage bottle; and a mechanical valve mounted on the storage bottle, connected to the second inlet-connecting pipe of the second linking valve and selectively abutting the inner side of the touching panel and having a linking pipe communicating with the first linking valve.