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92results about How to "Rapid scaling" patented technology

Multi-section arm telescopic device and crane with same

The invention provides a multi-section arm telescopic device and a crane with the same. The multi-section arm telescopic device comprises a single cylinder bolt part and a rope row part; the single cylinder bolt part comprises m section arms, a telescopic oil cylinder driving a pth section arm to stretch, and an arm pulling mechanism and a cylinder bolt mechanism which are used for positioning the p-th section arm, wherein m and p are natural numbers and p is more than 1 and less than or equal to m; the rope row part comprises a (m+1)th section arm to an nth section arm; an arm stretching rope row for the qth section arm comprises an arm stretching rotating wheel for the qth section arm and an arm stretching guy cable for the qth section arm, a first end of the arm stretching guy cable isfixed at the bottom of a (q-2)th section arm and a second end of the arm stretching guy cable is fixed at the bottom of the qth section arm; an arm contracting rope row for the qth section arm comprises an arm contracting rotating wheel for the qth section arm; and the first end of an arm stretching guy cable for the qth section arm is fixed on the top of the (q-2)th section arm, the second end of the arm stretching guy cable is fixed at the bottom of the qth section arm and passes by an arm contracting rotating wheel for a (q-1)th section arm. The multi-section arm telescopic device has hightelescopic speed and high work efficiency.
Owner:SANY AUTOMOBILE HOISTING MACHINERY

Near light and far light control circuit of automotive headlamp

InactiveCN101704352ATo achieve the purpose of separate lightingRapid scalingOptical signallingMicrocontrollerFull bridge
The invention relates to a near light and far light control circuit of an automotive headlamp. At present, the cost for realizing near light and far light control of the automotive headlamp is higher. The control circuit comprises a singlechip EM78P153, a three-terminal voltage stabilizing circuit and a full-bridge power driving circuit, wherein, one end of a near light limit contact switch S1, one end of a far light limit contact switch S2 and two contacts of a near light and far light change-over switch S3 are respectively connected with the singlechip; the three-terminal voltage stabilizing circuit comprises a three-terminal voltage stabilizer and two filter capacitors; the full-bridge power driving circuit comprises two PNP-type triodes, two NPN-type triodes, eight resistors and a filter capacitor. A DC motor in the invention is electrified to work at the moment of conversion of the near light and the far light of the automotive headlamp to realize rapidly extend and retract so as to achieve the purpose that the far light and the near light respectively illuminate, thus realizing that the far light and the near light can share one light source and one electronic ballast, and saving the cost of the automotive headlamp. The control circuit of the invention has low power consumption and high reliability.
Owner:HANGZHOU DIANZI UNIV
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