Linkage system for leveling extensions

A linkage system for leveling extensions includes: a mounting plate including mounting plate fingers; an upper guide rail; a lower guide rail; a height adjusting shaft; the group of sliding blocks are arranged in a channel between the upper guide rail and the lower guide rail; a group of linkage arms; the attack angle adjusting structure is used for keeping the finger-shaped piece of the mounting plate at a certain angle; and a group of attack angle adjusting screws. The height adjustment shaft is configured to adjust the position of the set of sliders within the channel and thereby adjust the height of the lower frame of the leveling extension. The set of attack angle adjustment screws is configured to adjust the angle of the mounting plate fingers and thereby adjust the attack angle of the lower frame of the leveling extension. 一种用于整平延伸件的联动系统包括：包括安装板指状件的安装板；上导轨；下导轨；高度调节轴；设置在上导轨和下导轨之间的通道中的一组滑块；一组联动臂；以一定角度保持安装板指状件的攻角调节结构；以及一组攻角调节螺钉。高度调节轴构造成调节该组滑块在通道内的位置并由此调节整平延伸件的下框架的高度。该组攻角调节螺钉构造成调节安装板指状件的角度并由此调节整平延伸件的下框架的攻角