| 摘要 |
<p>The invention relates to a device forshowing dynamically advertisement drawings. From outside to inside, the device is equipped witth a front-frame, a flexuous refraction piece, a irradiancy piece, drawings, a refection piece, a splint, a back-cover and a hang-hole, etc. A shell is mounted on the splin. There is an electromotor in the shell. The transmission shaft of the electromotor is connected to a slowdown gear group, the end of the slowdown gear group drives an edentulous switching-direction gear, a left switching-direction gear, a right switching-direction gear, a switching-direction bridge gear and a swing-staff gear. The swing-staff is driven by turning the swing-staff gear to an angle. The drawing-splint, which is connected to a rising-dropping staff, is driven to reciprocate linearly by inserting the swing-staff hole of the rising-dropping staff, thereby the drawings are raised and dropped along with the drawing-splint. A drawing-pin and a drawing-pin hole are laid onteh drawing-splint for fixing drawings. Either in bright environment or in dard environment, the device can show clearly multi dynamically-changing drawings, and is equipped with popular voice or music in order to show observably advertisement drawings.</p> |
