Portable two post automobile lift

摘要

A portable automobile lift includes a plurality of portable lifting columns and a portable power unit. Each lifting column includes a column base, a post extending upwardly from the column base, a lifting carriage moveably mounted on a forward side of the post, and a hydraulic actuator connected to the lifting carriage for movement of the lifting carriage along the post. Each column base comprises a respective base plate connected to a lower end of the respective post. The base plate anchor bolt receiving holes extending therethrough for receiving respective anchor bolts. Each column base further includes a pair of wheels positioned to engage a ground surface rearward of the base plate for ease of portability of the columns. The lift also includes a safety lock assembly that automatically engages during upward movement of the lift to prevent unintentional lowering or falling of the lifting carriage.

主权项

1. A lifting column comprising a first of a pair of lifting columns for an automobile lift, said first lifting column including:
a post including a plurality of lock blocks disposed along an interior surface and aligned along the length of the post; a column base comprising a base plate connected to a lower end of the post; said base plate having at least one edge spaced outwardly from a respective wall of said post to form a first mounting flange, said first mounting flange having at least one anchor bolt receiving hole extending therethrough, said column base further including a pair of wheels positioned to engage a ground surface rearward of said base plate; a lifting carriage moveably mounted on a forward inward side of the post; at least one lifting arm extending outwardly from the lifting carriage having a length sufficient to engage an undercarriage of a vehicle positioned between the inward sides of the lifting columns and being pivotable side-to-side about a coupling with the lifting carriage, a safety locking assembly pivotably mounted on the lifting carriage and including a pawl and a control member, the pawl in a locking orientation engaging one of the plurality of lock blocks on the post to restrict downward movement of the lifting carriage, and in a disengaged orientation being spaced apart from the lock blocks by the control member to enable downward movement of the lifting carriage; the control member including a first arm and a second arm meeting at an angle to form a point, the point contacting one of the plurality of lock blocks during upward movement to automatically enable the locking orientation of the pawl, and wherein the control member is rotatably coupled to the pawl along the second arm and the first and second arms meet at an acute angle and a hydraulic actuator connected to the lifting carriage for movement of the lifting carriage along the post.