Triple Locking Hook Connector

摘要

A triple locking hook connector includes a hook, a locking bar, a first spring, a controlling shaft, and a second spring. The hook has an axle hole and a first groove on an end of a hook opening, and has a spacing portion on the other end of the hook opening. An edge of an end of the locking bar has a first bolt. The first spring is to drive a first bolt to keep at the first position and to drive the other end of the locking bar to remain in the spacing portion. The controlling shaft joins the axle hole via a main axle to restrict the first bolt in the first position and to be driven by a second spring to stay at the third position to ensure the locking bar shutting the hook opening.

主权项

1. A triple locking hook connector, comprising:
a hook comprising a hook hole penetrated thereof, wherein said hook hole has a hook opening connecting through a side of said hook, wherein said hook has a first groove, an axle hole penetratingly on an edge of an end of said hook opening, and a spacing portion on an edge of the other end of said hook opening; a locking bar having a first bolt on an edge of an end thereof passing through said first groove, so as to allow said locking bar to shift between a first position and a second position along said first groove, wherein when the first bolt is at said first position, a free end of said locking bar will be positioned at said spacing portion, wherein when said first bolt is at said second position, said free end of said locking bar will be positioned at a place to release said spacing portion; a first spring arranged between said hook and said locking bar to drive said first bolt to remain at said first position and to drive said free end of said locking bar to remain at said spacing portion; a controlling shaft having a buckling portion and joining said axle hole via a main axle for swinging between a third position and a fourth position, wherein said controlling shaft at said third position causes said buckling portion to restrict said first bolt to remain at said first position, wherein said first bolt is freed when said controlling shaft is at said fourth position; and a second spring arranged between said hook and said controlling shaft to drive said controlling shaft to remain at said third position, so as to ensure that said locking bar shuts said hook opening, wherein to open said hook opening, said controlling shaft should be driven to swing said fourth position to allow said locking bar to be pulled to move said first bolt to said second position, which then forces said locking bar to turn toward said hook hole to make a three-part mode for opening said hook opening.