The invention discloses a linkage device for unfolding and folding a foldable carriage. The linkage device comprises a connecting rod, a right-hand thread nut, a left-hand thread nut, a positioning pin and a right-hand and left-hand thread screw rod. The right-hand and left-hand thread screw rod is characterized in that one half of the left-hand and right-hand thread screw rod is of a right-hand thread, and the other half of the left-hand and right-hand thread screw rod is of a left-hand thread; a right-hand thread nut is arranged at the right-hand thread end of the right-hand and left-hand thread screw rod; a left-hand thread nut is arranged at the left-hand thread end of the left-hand and right-hand thread screw rod, the left-hand thread nut is connected with one end of the connecting rod through the positioning pin, the other end of the connecting rod is connected with a carriage plate, the left-hand thread nut is connected with one end of the connecting rod through the positioningpin, and the other end of the connecting rod is connected with the carriage plate; the linkage device is small in occupied effective space, simple in structure, firm, reliable, easy to operate, capable of being manually and electrically operated and capable of being maintained by ordinary people.
本发明公开了一种折叠车厢展开、折叠的联动装置,包括连杆、正扣螺母、反扣螺母、定位销、正反扣螺丝杆;其特征在于所述正反扣螺丝杆是一根螺丝杆,一半是正扣、一半是反扣;所述正反扣螺丝杆的正扣端上正扣螺母,所述正反扣螺丝杆的反扣端上反扣螺母,所述正扣螺母用所述定位销与所述连杆一端连接,所述连杆另外一端与厢板连接,所述反扣螺母用所述定位销与所述连杆一端连接,所述连杆另外一端与厢板连接;本发明能够实现占用有效空间小、结构简单、牢固可靠、操作简单、手动、电动皆可、常人都可以维护。
Linkage device for unfolding and folding foldable carriage
一种折叠车厢展开、折叠的联动装置
16.10.2020
Patent
Elektronische Ressource
Chinesisch
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