Manual trailer lifting jack with drill power option

A manual trailer lifting jack with drill power option includes: an outer tube; an inner tube that is telescopically slidable within the outer tube; a foot that is connected to a bottom of the outer tube; a top block that is connected to a top of the outer tube; a threaded rod that pass through a cen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Xiang, Chenpan
Format:	Patent
Sprache:	eng
Schlagworte:	PERFORMING OPERATIONS SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A manual trailer lifting jack with drill power option includes: an outer tube; an inner tube that is telescopically slidable within the outer tube; a foot that is connected to a bottom of the outer tube; a top block that is connected to a top of the outer tube; a threaded rod that pass through a center of the top block and is rotatably held within the outer tube and fixed from axial movement relative to the outer tube; a threaded block that is connected to a top of the inner tube and has threads that engage the threaded rod so that a rotation of the threaded rod causes the inner tube to slide axially within the outer tube; a driving gear that is connect the top block and drives the threaded rod; a gear shaft that includes a bevel gear and a hexagonal head; and a gear housing that houses the gear shaft, driving gear, and the top block.