Structure and working principle of ratchet wrench-QIBO,Agricultural Parts Manufacturer

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Structure and working principle of ratchet wrench

2026-06-10

Core structure: composed of handle, ratchet head (including ratchet, pawl, spring), driving square head, and reversing paddle.

Structure and working principle of ratchet wrench

Core structure: composed of handle, ratchet head (including ratchet, pawl, spring), driving square head, and reversing paddle.
Working Principle:
Positive (tightening/loosening): The spring tightens the pawl into the slot of the ratchet teeth, rigidly locks, and torque is transmitted to the fastener.
Reverse (empty return): The pawl is lifted and slid over by the inclined surface of the tooth top, and the wrench runs idle without driving the fastener, avoiding repeated disassembly and assembly.
Switching direction: toggle the paddle to switch the working position of the pawl, and switch the tightening/loosening direction with one click, without the need to flip the wrench.
Key parameters: Common 36/48/60 teeth, the more teeth there are, the smaller the minimum swing angle (such as only 6 ° for 60 teeth), and the stronger the adaptability to narrow spaces.

Material and Process of Right Angle Wrench

None

Material and Process of Right Angle Wrench

None