Patent attributes
A folding torque wrench includes a bar body, a connection rod the front end of which is pivotally connected with the bar body, a tubular body fitted on the connection rod and a torque adjustment mechanism having at least one elastic member and an adjustment member. A threaded section of rear end of the connection rod is screwed in a threaded hole of the adjustment member. The threaded section of the connection rod and the threaded hole of the adjustment member are formed as a first threaded section and a second threaded section. The first threaded section is at least double-start threads. When rotating the adjustment member by one circle, the adjustment member is moved in the longitudinal direction of the connection rod by a travel, which is over two time the pitch of the first threaded section. The torque value of the wrench can be quickly greatly adjusted only by means of rotating the adjustment member by few circles.