Universal expanding rod
The utility model relates to a universal expanding rod. One end of an outer tube is sheathed with an inner tube which is provided with an eccentric wheel. The other ends of the inner tube and the outer tube are fixedly provided with screw plugs respectively. The screw plugs and a fine adjustment coi...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a universal expanding rod. One end of an outer tube is sheathed with an inner tube which is provided with an eccentric wheel. The other ends of the inner tube and the outer tube are fixedly provided with screw plugs respectively. The screw plugs and a fine adjustment coil are in threaded connection. The other end of the fine adjustment coil is connected with a globe body of a universal supporting base. The universal supporting base is composed of a rubber basin sucking base and the globe body which is inlaid inside and can slide freely. When the rubber basin sucking base is pressed and contacted with a wall surface, the globe body thereof which is connected with the expanding rod can rotate freely in a plurality of directions. The disadvantage of a one-way expanding rod is overcome. In addition, a bearing shape is also formed on the inner wall of a concave cavity of the globe body for reducing the frictional force of rotation when fine adjusted. A convex circular shape is formed at the bottom of an inner cavity. So the operation is convenient, and the universal expanding rod is very practical. |
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