| 摘要 |
The invention relates to a sleeve (1) for the fixing of a pump (2) to a bottle with a neck (3) enlarged at the mouthpiece (4). The upper part (1a) of the sleeve (1) has tubular elements: one external tubular element (10) for receiving a metallic covering (5) and an internal tubular element (11) for receiving and restraining the pump (2), and a base transversal element (12) resting on the mouthpiece (4). An annular gasket is interposed between the base transversal element (12) and mouthpiece (4). The lower tubular part (1b) of the sleeve is to be inserted onto the mouthpiece (4) and is held in place in an undercut (4a) by means of rounded projecting parts (16) shown internally by the part (1b). The lower tubular part (1b) is provided with a plurality of external facings (15). The part (1b) also has externally a plurality of step projections (20) between the facings (15).
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