Hand-push type safety umbrella

手推式安全伞

Abstract

The utility model discloses a hand-push type safety umbrella, which mainly comprises a framework, an upper runner, a rubber sleeve, a middle bar and a middle bar sleeve, wherein the upper runner is fixed onto the top portion of the middle bar; the upper end portion of the middle bar sleeve is a lower runner; the middle bar sleeve is movably sleeved on the middle bar; the framework includes long ribs and top ribs. The inner ends of the long ribs are hinged onto the upper runner; the inner ends of the top ribs are hinged onto the lower runner on the upper end portion of the middle bar sleeve; the outer ends of the top ribs are hinged onto the middle portions of the long ribs; the rubber sleeve is sleeved on the upper portion of the middle bar and under the upper runner; the upper end surfaceand the lower end surface of the rubber sleeve can be respectively abutted to the upper runner and the lower runner on the upper end portion of the middle bar sleeve. As the middle bar sleeve of thesafety umbrella is movably sleeved on the middle bar and the lower runner is arranged at the top end of the middle bar sleeve, the middle bar sleeve is enabled to move upwards and downwards along themiddle bar by pushing the middle bar sleeve upwards and downwards; by adopting mechanics principle, users can realize unfolding and folding the umbrella without using opening-closing control mechanisms such as spring plates, springs and the like, thereby the hand-push type safety umbrella achieves simpler production process and lower cost.
本实用新型公开了一种手推式安全伞,它主要由骨架、上巢、橡胶套管、中棒、中棒套管组成;所述的上巢固定在中棒顶部,所述的中棒套管上端部为下巢,中棒套管活动套接在中棒上;所述的骨架包括长骨、顶骨,长骨的内端铰接在上巢上,顶骨的内端铰接在中棒套管上端部的下巢上,顶骨的外端铰接在长骨的中部;所述的橡胶套管套接在中棒的上部、上巢的下方,其上下端面分别可与上巢和中棒套管上端部的下巢顶靠。由于本实用新型的中棒套管活动套接在中棒上,在中棒套管的顶端设置下巢,通过上、下推动中棒套管,使其沿中棒上下移动,利用力学原理,就可实现伞具的开启和收合,省缺了弹片、弹簧等开关控制机构,生产工艺更加简单,成本更低。

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