| 摘要 |
A gas pumping apparatus for soda machine pumps gas into a liquid container (6) and includes a gas supplying unit (10), a gas pumping stage (20) and a rotational unit (30). The gas supplying unit includes a gas tube (14) and a handgrip (15) with a block extended on one side of the handgrip. The gas pumping stage includes a gas inlet connector (22) communicated with the gas tube and fixing ring (25) communicated with the gas inlet connector. The fixing ring includes through groove (251) and guiding groove (252) communicated with the through groove. The liquid container includes a locking block embedded into the guiding groove and fixed in the through groove. The rotational unit includes a rotational piece (31) with a first extension arm (312) and a second extension arm (313). The first extension arm is corresponding to the block of the handgrip and the second extension arm is arranged in the through groove for the operation of the locking block.
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