Hand-operated type hoister
A hand cranking hoister comprises a self-locking mechanism, a retarding mechanism and a guide rope mechanism. A left and a right trays are arranged in the left and right sides of a gear shaft of the retarding mechanism, a double gear, a single gear and a rope gear are all arranged between the left t...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | A hand cranking hoister comprises a self-locking mechanism, a retarding mechanism and a guide rope mechanism. A left and a right trays are arranged in the left and right sides of a gear shaft of the retarding mechanism, a double gear, a single gear and a rope gear are all arranged between the left tray and the right tray; the rope gear has an inner ring gear, which is meshed with the single gear, the double gear and the gear shaft. A fixed tray in the self-locking mechanism is fixed with the gear shaft; a rotating tray is connected with the screw thread of the fixed tray; between the rotating tray and the fixed tray two friction tablets are arranged, between the two friction tablets a ratchet and a pawl are arranged. The guide rope mechanism includes a rope-inlet gear, a rope-pressing gear and a rope-outing gear, wherein, a wire rope is guided into a U-shaped socket of the rope guiding gear from the rope-inlet gear, winds through the rope gear to a rope of the rope-pressing gear and goes out from the rope-out |
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