Patent ID: 7162803

Claim:
A foldable tool retainer capable of updating a tool casily comprising: an upper casing sheet having an upper receiving portion at an inner side of one cnd of the upper casing sheet; the upper receiving portion having a through hole at a center thereof; another end of the upper casing sheet having a concave portion; an upper pad riveted to the inner side of the upper casing sheet; one end of the upper pad having a notch corresponding to the upper receiving portion of the upper casing sheet; one side of the notch being installed with an upper control sheet which is received in the upper receiving portion; an end of the upper control sheet being a buckling end; a center of the upper receiving portion being installed with an upper button corresponding to the through hole of the upper receiving portion; another end thereof being installed with a sliding groove corresponding to the concave portion of the upper casing sheet; an inner side of the sliding groove being formed with an enlarged portion; a work tool pivotally installed to the sliding groove at the inner side of the upper pad; the work tool having a buckling groove at a position corresponding to the sliding groove; a lower pad being installed at an inner side of the work tool; the lower pad being formed with a sliding groove corresponding to the upper receiving portion of the upper casing sheet; an inner end of the sliding groove being formed with an enlarged end; one end of the lower pad corresponding to the concave portion of the upper casing sheet having a hollow portion; an inner side of the hollow portion being connected to a lower control sheet with ratchet teeth; the lower control sheet having a lower button near the ratchet teeth; a resisting sheet fixed to one side of the lower pad by a rotary shaft and a retaining stud; one end of the resisting sheet corresponding to the sliding groove of the lower pad having a through hole for receiving the rotary shaft and another end thereof having a retaining hole for receiving a retaining stud; a lower casing sheet riveted to an outer side of the lower pad; one end of the lower casing sheet having a lower receiving portion for receiving the lower control sheet of the lower pad; one end of the lower receiving portion corresponding to the buckling groove of the work tool being installed with a ratchet wheel receiving portion; a ratchet shaft being rotatably installed in the ratchet wheel receiving portion and being buckled to the work tool; a ratchet wheel being engaged to the ratchet shaft; a periphery of the ratchet wheel having a plurality of ratchet teeth; a buckling block capable of buckling the buckling groove of the work tool being installed on the ratchet wheel; a center of the ratchet wheel receiving portion having a riveting hole capable of riveting the ratchet shaft; a through hole being formed near the ratchet wheel receiving portion for receiving a button; a lateral side of the lower receiving portion having a retaining hole for riveting the retaining stud.