Internal side-hung crank arm type hand-cranking window opener and linkage type hand-cranking window opening device

Abstract

The utility model discloses an inward casement crank arm type hand-cranking window opener and linkage type hand-cranking window opening.The inward casement crank arm type hand-cranking window opener comprises a connecting assembly which comprises a linkage base, a first connecting rod, a locking block and a locking groove, the linkage base is installed on a window sash, the locking groove is formed in a window frame, the locking block is connected with the linkage base in a sliding mode, and the linkage base is connected with the first connecting rod; one end of the first connecting rod is connected with the locking block, and the first connecting rod can drive the locking block to move on the linkage seat, so that the locking block can be inserted into the locking groove or separated from the locking groove; the hand-cranking assembly is fixed to the wall, one end of the first connecting rod is connected with the hand-cranking assembly, and the hand-cranking assembly can drive the first connecting rod to move, so that the first connecting rod can drive the window sash to move, and the window is opened or closed. The window opener is applied to the linkage type hand-cranking window opening device, at least two connecting assemblies are arranged side by side, a linkage rod is arranged between every two adjacent connecting assemblies, one end of each linkage rod is connected to the linkage seat close to the hand-cranking assembly, and the other end of each linkage rod is connected to the linkage seat far away from the hand-cranking assembly.

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