Hinged locking structure of ladder stool

梯凳的铰装锁定构造

Abstract

一种梯凳的铰装锁定构造,包括与梯本体固装的第一铰装板,第一铰装板与固装在梯本体折叠部的第二铰装板通过铰装件借由装配孔铰装,其中,一定位销组件固装在第一铰装板与梯本体结合的装配面上,所述的定位销组件由一具有销孔并固装在梯本体上销座、一与销座匹配结合并可沿第一铰装板第一过孔和第二铰装板第二过孔轴向伸出的定位销、一套装在定位销并容置于销座的销孔内的弹簧组成;所述第二铰装板上设置与按扣匹配结合的过孔;一与定位销匹配结合的按扣借由紧固件装置在第二铰装板上,所述的按扣两端设置抵压定位销退出第二铰装板之第二过孔的按扣凸端。
A hinge locking structure of the step ladder includes the first hinge plate which is fixed with ladder body; the first hinge plate hinges the second hinge plate which is fixed at the folding part of the ladder body through the installation hole with the hinge element; hereinto, the locating pin unit is fixedly mounted onto the assembly surface of the first hinge plate and the ladder body; the locating pin unit is form with a pin boss which has the pinhole and is fixedly mounted on the ladder body, a locating pin which mates the pin boss and can axially extend through the first through-hole of the first hinge plate and the second through-hole of the second hinge plate, and a set of the spring which is installed in the locating pin and held in the pin hole of the pin boss; the second hinge plate is provided with the through-hole which mates the snap fastener; a snap fastener which mates the locating pin is mounted on the second hinge plate with the fastening piece; the both ends of the snap fastener are provided with the convex terminals to prevent the locating pin withdrawing from the second through-hole of the second hinge plate.

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