The invention relates to a self-pre-tightening sunshade curtain winding shaft. Two ends of a hollow shaft body are restrained between a left curtain cloth guide frame and a right curtain cloth guide frame to be in a rotatable state, a hollow cavity matching a guide groove is formed in the hollow shaft body, two rotation stopping terminals are arranged in the hollow cavity in a back-to-back mode, and the rotation stopping terminals are correspondingly connected with the guide groove in the inner wall of the hollow cavity in a sliding and penetrating mode through a plurality of guide ribs on therotation stopping terminals. The rotation stopping terminals are outwards connected with the inner end of a torsion spring connected into the hollow cavity in a penetrating mode, the outer end of thetorsion spring is connected with a fixed terminal connected into the hollow cavity in a penetrating mode, the fixed terminal is connected with an external unwinding gear device, the unwinding gear device comprises an outer positioning shaft, a middle gear part and an inner rotating connecting part, the inner rotating connecting part is erected on a skylight guide rail or the curtain cloth guide frames, the middle gear part is meshed with a sunshade curtain driving rack, and the outer positioning shaft is rotatably connected with the curtain cloth guide frames or the skylight guide rail in a penetrating mode. Convenient assembly production is considered, pre-tightening is not needed before assembly, the use stability is effectively improved, and the service life is effectively prolonged.
本发明涉及一种自预紧遮阳帘收卷轴,空心轴体的两端约束在左、右帘布引导框架间呈可旋转状态,空心轴体内设导向槽配合的空心腔,空心腔内相背设置两只止转端子,止转端子经其上多个导向筋对应可滑动穿接空心腔内壁导向槽;止转端子上朝外连接穿接在空心腔内的扭簧内端,扭簧外端连接穿接在空心腔内的固定端子,固定端子外接放卷齿轮装置,放卷齿轮装置包括外定位轴、中间齿轮部和内旋转连接部,内旋转连接部架设在天窗导轨上或帘布引导框架上,中间齿轮部啮合遮阳帘驱动齿条,外定位轴可旋转穿接在帘布引导框架或天窗导轨上。其兼顾便捷组装生产和装配前无需预紧,有效提高使用稳定性和寿命。
Self-pre-tightening sunshade curtain winding shaft
一种自预紧遮阳帘收卷轴
2021-03-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge |
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