Patent ID: 8556780

Claim:
A multifunctional linked fitness equipment comprising: a base having: an elongated bottom adapted to rest on a floor and having a front end and a rear end; a seat stand mounted on the elongated bottom and having: a front; a rear; a seat locking hole formed through the seat stand; two back alignment plates mounted on the rear of the seat stand; and two back positioning holes respectively formed through the back alignment plates; a front support frame seat pivotally mounted on the front of the seat stand and having two pivot wings, a bottom end and a positioning hole formed through the front support frame seat, wherein one end of each pivot wing is pivotally mounted on the front end of the elongated bottom; and a rear support frame seat pivotally mounted on the rear of the seat stand, and having a positioning hole formed through the rear support frame seat and a bottom end; a link having: a front end pivotally mounted between the free ends of the two pivot wings; and a rear end pivotally mounted on the rear of the seat stand; at least one resilient member, wherein one end of each one of the at least one resilient member is securely connected with the rear end of the elongated bottom, and the other end is pivotally mounted on the rear end of the link; a seat mounted on the seat stand and having: a seat positioning hole formed in a side of the seat facing the seat stand and corresponding to the seat locking hole on the seat stand; and a seat positioning pin detachably mounted through the seat positioning hole and the seat locking hole; a front support frame pivotally mounted on the front support frame seat and having: a post positioning hole formed through the front support frame and corresponding to the positioning hole of the front support frame seat; and a front positioning pin detachably mounted through the positioning hole of the front support frame and the positioning hole of the front support frame seat; and a rear support frame pivotally mounted on the rear support frame seat of the seat stand and having: a bottom; an alignment sector formed on the bottom of the rear support frame and having multiple alignment holes formed through the alignment sector and spaced apart from each other; a positioning hole formed through the rear support frame and corresponding to the positioning hole of the rear support frame seat; and a rear positioning pin detachably mounted through the positioning hole of the rear support frame, the positioning hole of the rear support frame seat, and one of the alignment holes of the alignment sector.