The invention relates to the technical field of bicycle parts, and discloses a mountain bicycle deformation expansion backseat detachable mechanism which comprises a base, an upper expansion frame isslidably connected to the top of the base, a lower expansion frame is slidably connected to the bottom of the base, and an auxiliary circular ring is fixedly connected to the interior of the base. Fixed connecting rods are fixedly connected between the bases, a fixed rotary drum is fixedly connected between the fixed connecting rods, a two-way screw is rotatably connected to the interior of the fixed rotary drum, and a movable sliding block is in threaded connection with the outer side of the two-way screw. According to the mountain bicycle deformation expansion backseat detachable mechanism,the two-way screw is driven to rotate through a rotating flange, the two-way screw drives the movable sliding block to move, the movable sliding block drives the expansion guide column to reduce the angle, the expansion guide column drives the upper expansion frame and the lower expansion frame to move outwards, and then the auxiliary circular ring and other mechanisms are used in cooperation; therefore, the effects of rotary supporting expansion and bearing area increase are achieved.
本发明涉及自行车零部件技术领域,且公开了一种山地自行车变形扩展后座的可拆卸机构,包括底座,所述底座的顶部滑动连接有上扩展架,所述底座的底部滑动连接有下扩展架,所述底座的内部固定连接有辅助圆环,所述底座之间固定连接有固定连接杆,所述固定连接杆之间固定连接有固定转筒,所述固定转筒的内部转动连接有双向螺杆,所述双向螺杆的外侧螺纹连接有移动滑块。该山地自行车变形扩展后座的可拆卸机构,通过旋转法兰带动双向螺杆转动,双向螺杆带动移动滑块位移,移动滑块带动扩展导柱角度减小,扩展导柱带动上扩展架和下扩展架向外移动,再通过辅助圆环等机构的配合使用,从而达到旋转式支撑扩展,增大承载面积的效果。
Mountain bicycle deformation expansion backseat detachable mechanism
一种山地自行车变形扩展后座的可拆卸机构
05.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS |