我们参考国外杂志资料,设计制造了一种能爬楼梯的小车(见图),重量只有八公斤。它不但可以送物(包括液化石油气瓶)上下楼,同时也能在平地上行走。考虑到一般楼房的楼梯比较狭窄、陡直等因素,本设计在手柄的长度及角度 We refer to foreign magazine information, design and manufacture of a stair climbing car (see photo), weighing only eight kilograms. Not only can it deliver goods (including liquefied petroleum gas) to and from buildings, but it can also walk on flat ground. Taking into account the general building of the staircase is relatively narrow, steep and other factors, the design of the handle length and angle