Manually adjustable movable base for outdoor umbrella
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United States of America Patent
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Apr 16, 2024
Grant Date -
Jan 19, 2023
app pub date -
Jan 21, 2021
filing date -
Jan 21, 2021
priority date (Note) -
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Abstract
A manually adjustable movable base for an outdoor umbrella includes a base assembly, a screw rod rotatably fitted at the center of the foundation base assembly, a cranking rod which is in transmission fit with the screw rod and is used for driving the screw rod to rotate, a plurality of pull rods rotatably fitted with the base assembly, and a plurality of bottom wheels which are arranged on the base assembly and are correspondingly fitted with the pull rods. The lower end of the screw rod is in threaded connection with a lifting block, and the lifting block is fitted with and connected to the pull rods.
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