| 摘要 |
The present invention relates to a rapid adjustable wrench, the wrench is provided with a worm rotation window on the lower side of the fixed wrench head, the support holes are provided on the both sides of the window, the support holes are the elongated aperture holes that enable the pin shift can radially moving up and down, the spring locating holes are provided on the lower side face of the elongated aperture holes respectively, the spring holds up the pin shaft to prompt the engagement of the teeth of the worm with the teeth of the adjustable wrench head; the length of the spring after the depress at least ensure that the length of the radial displacement of the worm teeth does not exceed the height of the adjustable wrench head teeth, the adjustable wrench head teeth have at least one tooth on the top end of the clamping face side, which height higher than that of the subsequent other teeth. The invention has a simple structure, convenient to use, holding the handle of the wrench with hands and pinching the worm with thumb and forefinger simultaneously to pull it down, such that it can quickly adjust the opening size of the clamping face, improving the using efficiency of the adjustable wrench; the settings for the different teeth height of the adjustable wrench head, in the case of the adjustable wrench head does not removed when achieve the adjustment of the opening size of the clamping face, reducing the processing operation to the adjustable wrench, saving the expense. |
