Patent ID: 8899249

Claim:
A lifting device for an umbrella comprising: a base; a plurality of fixing seats secured on the base; a plurality of movable members each movably mounted in a respective one of the plurality of fixing seats; a pressing module movably mounted on the base and pressing the plurality of movable members; a threaded rod mounted on the base and connected with the pressing module; and a drive handle connected with the threaded rod, wherein: each of the plurality of fixing seats is provided with a receiving chamber and a guide slot; the pressing module includes: a driven rod; and two pressing rods connected with two opposite ends of the driven rod; the driven rod of the pressing module is provided with a through hole connected with the threaded rod; each of the two pressing rods of the pressing module is extended through and movable in the guide slot of each of the plurality of fixing seats; each of the two pressing rods of the pressing module is provided with a straight pressing portion and at least one recessed release portion; the pressing portion of each of the two pressing rods is movable to press a respective one of the plurality of movable members; the release portion of each of the two pressing rods is movable to align with and receive a respective one of the plurality of movable members; and each of the plurality of movable members is movable in the receiving chamber of the respective fixing seat; the base is provided with a threaded tube which is located at a side of the base; and the threaded rod is screwed into the threaded tube of the base.