Power wrench

• Main Author: NI GUIGONG
• Format: Patent
• Language: English
• Published: 18.03.2015
• Subjects: HAND TOOLS; MANIPULATORS; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING

The invention discloses a power wrench. The power wrench comprises a handle, a power device, a first transmission mechanism, a first part which is arranged at the end part of the handle, a second part which is arranged in a frame structure formed by the first part, and more than one third part which is installed on the second part and can synchronously and pivotally rotate with the second part; the first part comprises a frame body used for forming the frame structure and a second transmission mechanism which can be driven by the first transmission mechanism to drive the second part to pivotally rotate; the second part comprises a wheel which is constrained by the frame body in a first axis direction and is directly driven by the second transmission mechanism, and more than two arms which are used for installing the third part to enable the third part to always exceed the first part in the first axis direction; the third part and the second part form rotatable connection by taking a second axis as a rotating axis through the arms. The power wrench has the beneficial effects that the labor is saved, the structure is reasonable, and the power wrench can be switched to an applicable sleeve hole without being disassembling when a user needs to fasten threaded parts of different specifications.