1results about How to "Reduce processing waste" patented technology

The invention is an open-ratchet spanner, the jaw seat is provided with a main hole with an opening, used to pivotally set a ratchet wheel with outer teeth on the outer periphery, the ratchet wheel is provided with a wrench hole with a channel. The wall surface of the main hole is concavely provided with a first chamber and a second chamber, used to install a first pawl and a second pawl engaged with the outer teeth under the action of a spring. The first feature of the invention is that the jaw seat is provided with a first hole and a second hole communicating with the first chamber and the second chamber, used to pivotally connect a first shaft and a second shaft, the first shaft and the second shaft are provided at the bottom with springs and at the top with eccentric parts, and the top surface of the jaw seat is provided with a dial capable of driving the two eccentric parts, so that the dial can be switched between the first gear and the second gear, to conveniently manually adjust the ratchet wheel to forward or reverse direction switching force. The second feature of the invention is that the top edge of the outer periphery of the ratchet wheel is provided with a detachable knob, and the bottom edge is provided with another detachable knob, so that the two knobs limit the ratchet wheel from coming out of the main hole, and can drive the ratchet wheel to rotate freely, so that the overall cost of installing the ratchet wheel is more in line with economic benefits.