Collapsible weight system
作者： Richard Jackson Mcwain
DOI:
关键词: Engineering 、 Seal (mechanical) 、 Diaphragm (mechanical device) 、 Structural engineering 、 Lock (firearm) 、 Bar (music)
摘要: A collapsible weight system provides a collapsible/expandable diaphragm for containing liquid which includes closed hub disclosed on one end thereof and an open disposed another thereof. tubular cap is provided to seal the while engaging both provide axial support of diaphragm. pin locking in order lock bar lifting weights. When engaged locked with cap, it extends therethrough providing additional strength
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