Liquid filling device
AssigneeLih Yann Industrial Co., Ltd.
InventorPo-Lin Liao
Life of this patent
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Abstract
A liquid filling device is provided, including: a base, a connecting assembly, a pressure gauge, at least one filling assembly and a negative pressure generator. The base includes a channel, and the channel extends through the base and includes at least one liquid inlet, a first gas port, a second gas port, an assembling opening and a measuring port. The negative pressure generator includes a tube body and a venturi structure, and the tube body is disposed through the base and includes a penetrating portion disposed through the channel. The penetrating portion has at least one through hole, and the venturi structure is received within the penetrating portion and communicated with the channel. When a gas is passed through the venturi structure, a negative pressure is generated to extract a gas in the container to be filled.
Claims10
A liquid filling device, including:
- a base, including a channel, the channel extending through the base and including at least one liquid inlet, a first gas port, a second gas port, an assembling opening and a measuring port;
- a connecting assembly, disposed on the base and communicated with the channel via the assembling opening, configured to be connected with a container to be filled and communicated with an interior of the container to be filled;
- a pressure gauge, assembled to the base and communicated with the channel via the measuring port, configured to measure a pressure in the container to be filled;
- at least one filling assembly, assembled to the base and communicated with the channel via the at least one liquid inlet, configured to introduce a liquid into the container to be filled;
- and
- a negative pressure generator, including a tube body and a venturi structure, the tube body disposed through the base via the first gas port and the second gas port, the tube body including a first gas guiding portion, a penetrating portion and a second gas guiding portion which are communicatedly connected with one another in sequence, the first gas guiding portion protruding beyond the first gas port, the penetrating portion disposed through the channel, the second gas guiding portion protruding beyond the second gas port, the penetrating portion having at least one through hole disposed therethrough, the venturi structure received within an interior of the penetrating portion and communicated with the channel via the at least one through hole;
- wherein when a gas is provided in the tube body and passed through the venturi structure, a negative pressure is generated to extract a gas in the container to be filled.
Dependencies are inferred from the claim text.