| 摘要 |
An adjustable wrench for quickly adjusting the width of a jaw thereof, comprising a stationary body ( 1 ), having a chamber ( 12 ) at an upper portion thereof; a movable body ( 2 ), having a worm ( 13 ) at a lower portion thereof, being movable transversely inside the chamber ( 12 ); a driving mechanism ( 100 ) located within the chamber ( 12 ), including a worm gear ( 10 ) with a worm gear shaft ( 20 ), engaging the worm ( 13 ), a first gear ( 3 ) mounted at an end of the worm gear shaft ( 20 ) of the worm gear ( 10 ), a connection shaft ( 9 ) located under the worm gear shaft ( 20 ) in parallel, and a second gear ( 4 ) mounted at an end of the connection shaft ( 9 ) to engage with the first gear ( 3 ); and a traction mechanism ( 200 ) connected to the connection shaft ( 9 ), the traction mechanism ( 200 ) driving the second gear ( 4 ) to rotate by driving the connection shaft ( 9 ), which drives the first gear ( 3 ) to rotate, hereby rendering the worm ( 13 ) to move inside the chamber ( 12 ). The adjustable wrench in accordance with the present invention can be adjusted rapidly in the width of the jaw, and is easy to operation with a single hand.
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