Examination pencil with automatic smearing function
An automatic and pencil technology, which is applied to mechanical pencils, printing, writing utensils, etc., can solve problems such as time-consuming, smearing, scanning, admission failure, and loss of points in answering questions, etc., to achieve the effect of ensuring ample, speeding up filling speed, and ensuring exam time
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[0016] Combine below Figure 1-Figure 5 The present invention is described in detail, for the convenience of description, the orientations mentioned below are now specified as follows: figure 1 The projection relationship of itself is the same as the up, down, left, right, front, and rear directions.
[0017] An automatic smearing test pencil according to the present invention includes a base 22, a pen holder 11 is provided on the upper end surface of the base 22, and a sliding cavity 12 with an opening downward is provided in the pen holder 11, and the sliding cavity 12 is provided with Starting device 901, the base 22 is provided with a transmission cavity 23, the inner wall of the top end of the transmission cavity 23 communicates with a through hole 36 that communicates with the sliding cavity 12, and the inner wall of the bottom end of the transmission cavity 23 is provided with a The screw rod 33 at the lower end of the through hole 36 is provided with an oscillation de...
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