Emergency power supply for tunnel engineering

The utility model provides an emergency power supply for tunnel engineering, which comprises a power supply main body, a top plate arranged at the upper end of the power supply main body, a bottom plate mounted at the lower end of the power supply main body, vertically arranged fixing rods mounted a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHI ZHENBIN, YAN JIFENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The utility model provides an emergency power supply for tunnel engineering, which comprises a power supply main body, a top plate arranged at the upper end of the power supply main body, a bottom plate mounted at the lower end of the power supply main body, vertically arranged fixing rods mounted at four corner angles at the lower end of the top plate, and straight cylinders arranged at four corner angles at the upper end of the bottom plate. A straight cylinder is arranged at the lower end of the fixing rod and extends into the straight cylinder, a piston is installed at the lower end of the fixing rod, a first magnetic ring is arranged at the upper end of the piston, a second magnetic ring is installed on the upper side in the straight cylinder, the first magnetic ring is arranged on the lower side of the second magnetic ring, and the second magnetic ring and the first magnetic ring are arranged in a mutually exclusive mode. According to the design, repulsive force between the first magnetic ring and the s