2results about How to "Have unity" patented technology

This utility model discloses a telescopic leg tube and support frame with a quick locking and unlocking function. The telescopic leg tube includes a linkage rod and several sequentially cascaded leg tube assemblies. The linkage rod passes through several leg tube assemblies. Each leg tube assembly includes an outer tube, an inner tube, a synchronizing sleeve, a connecting sleeve, and a locking component. The synchronizing sleeve can move axially in a first direction relative to the linkage rod when the linkage rod rotates in the forward direction, thereby driving the locking component through the inner tube to restrict the relative movement between the inner tube and the outer tube of the next-level leg tube assembly. Alternatively, the synchronizing sleeve can move axially in a second direction relative to the linkage rod when the linkage rod rotates in the reverse direction, thereby driving the locking component through the inner tube to release the restriction on the relative movement between the inner tube and the outer tube of the next-level leg tube assembly. Through the above structure, multiple sets of leg tube assemblies can be simultaneously locked and unlocked by the linkage rod, making the structure uniform, which not only improves the convenience of use but also reduces the structural complexity and production cost.

The utility model discloses a telescopic foot tube and a support frame capable of quickly unlocking and locking, the telescopic foot tube comprises a linkage rod and a plurality of foot tube components which are sequentially cascaded, the linkage rod is arranged on the plurality of foot tube components in a penetrating manner, and each foot tube component comprises an outer tube, an inner tube, a push-pull component and a locking component; the push-pull assembly can move in the first direction in the axial direction relative to the linkage rod when the linkage rod rotates in the forward direction, so that the inner pipe drives the locking assembly to limit relative movement between the inner pipe and the outer pipe of the next-stage foot pipe assembly. Or, the push-pull assembly can move in the second direction in the axial direction relative to the linkage rod when the linkage rod rotates reversely, so that the locking assembly is driven by the inner pipe to relieve the limitation on the relative movement between the inner pipe and the outer pipe of the next-stage foot pipe assembly; by means of the structure, the multiple foot tube assemblies can be linked through the linkage rods at the same time for locking and unlocking, the structure is made to be uniform, use convenience is improved, and structural complexity and production cost are reduced.