The walk help Trucks that set of Sha Trucks Installed of Yi Seed tool improvement, comprising Yi Trucks Body and at least a Sha Trucks Installed are set. Trucks Body include the handle Single member above a Brace Jia Group, Yi Pivot Installed what branch Brace Jia Group Hous Side, and at least San An Installed whats branch Brace Jia Group bottom Trucks Wheels, handle Single members can phase Right branch Brace Jia Group in the non-lower Pressure Wei Zhi Inter Pivot Turn of Pressure Wei Zhi With mono- once. Sha Trucks Installed set the Move devices processed connect including an evil spirit Trucks Line Single members and an evil spirit Trucks Line Single Yuan Even. Move devices processed have the Block stop members that a With branch Brace frame Group Even connect fixed Shell parts, With evil spirits Trucks Line Single members Even connects and connect in an end Even of the cunning Move parts of the sliding Move of Shell parts Inner phases Right, the nearly Trucks Wheels of the sliding Move parts O of a With and a With Trucks Wheels with Shaft affixed spine Wheels, Block stop member can phase Right what spine Wheels set Inter in With spine Wheels phase mutually divide the free position of From and a With spine Wheels to be mutually clamped evil spirit Trucks and move Move.一種具改良之煞車裝置的助行車,包含一車體及至少一煞車裝置。車體包括一支撐架組、一樞裝於支撐架組後側上方的握把單元,及至少三安裝於支撐架組之底部的車輪,握把單元可相對支撐架組在一下壓位置與一非下壓位置間樞轉。煞車裝置包括一煞車線單元,及一煞車線單元連接之制動器。制動器具有一與支撐架組連接固定的殼件、一與煞車線單元連接且在殼件內相對滑動之滑動件、一與滑動件鄰近車輪的一端連接之擋止件,及一與車輪同軸固接的棘輪,擋止件可相對於棘輪在一與棘輪相互分離的自由位置及一與棘輪相互卡合的煞車位置間移動。
