31results about How to "Prevent hand slipping" patented technology

The utility model discloses a high-precision woodcarving line repairing pen which comprises a pen holder, a mounting cavity is formed in the right side of the interior of the pen holder, a mounting frame is fixedly connected to the interior of the mounting cavity, a driving motor is fixedly connected to the right side of the interior of the mounting frame, and a control key is movably connected to the right side of the top of the pen holder. According to the high-precision woodcarving line repairing pen, a dustproof net is arranged, a draught fan in an air guide cavity is started during repairing, after the draught fan is started, external air can be rapidly sucked in and then guided into a mounting cavity, the air passes through the interior of the mounting cavity and is finally guided out through an air outlet, and wood chips generated during repairing can be blown out; and when the air passes through the interior of the mounting cavity, heat generated by working of the driving motor can be led out together, so that the temperature of the driving motor during operation is reduced, a dustproof net in the air guide cavity can prevent dust from being sucked together during air inlet, and the problem that wood chips cannot be automatically removed is solved.