Electroscopic device
The invention provides an electroscopic device which comprises an electroscope, a fixation rod, a first telescopic rod and a second telescopic rod. The electroscope is arranged on the top of the second telescopic rod. Square bosses are arranged on the outer side walls of the fixation rod, the first...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides an electroscopic device which comprises an electroscope, a fixation rod, a first telescopic rod and a second telescopic rod. The electroscope is arranged on the top of the second telescopic rod. Square bosses are arranged on the outer side walls of the fixation rod, the first telescopic rod and the second telescopic rod respectively. The second telescopic rod is sleeved in the first telescopic rod. The first telescopic rod is sleeved in the fixation rod. Racks are arranged on the outer sides of the square bosses of the first telescopic rod and the second telescopic rod respectively. Transmission devices are arranged on the top of the fixation rod and the first telescopic rod respectively. Blocking mechanisms corresponding to the square bosses are arranged on the top end of the fixation rod and the first telescopic rod respectively. According to the invention, automatic expansion and contraction of the first telescopic rod and the second telescopic rod is realized through the transmissio |
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