Variable-diameter tunnel construction dust collection fan
The variable-diameter tunnel construction dust collection fan comprises a first base, a lamp box and a second base, a motor is fixed to the lower portion of the first base, second side plates are fixed to the output ends of second electric telescopic rods, a left outer half box is fixed to the lower...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The variable-diameter tunnel construction dust collection fan comprises a first base, a lamp box and a second base, a motor is fixed to the lower portion of the first base, second side plates are fixed to the output ends of second electric telescopic rods, a left outer half box is fixed to the lower portion of the first side plate, and a right outer half box is fixed to the lower portion of the second side plate. A right outer half box is fixed to the lower surface of the second side plate, elastic cloth is fixed to the outer side of the inner half box, manual telescopic rods are installed at the top ends of the second base and the first base correspondingly, connecting plates are fixed to the lower surfaces of the inner half box, the left outer half box and the right outer half box correspondingly, and discs are fixed to the outer side faces of the connecting plates. A primary rectangular rod is arranged below the inner half box, and a secondary rectangular rod is arranged below the elastic cloth. According |
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