The utility model relates to a buffer device of an agricultural tool machine.It includes a main member which is pivoted at the bottom of the vehicle body and can swing up and down, and two axle members which are pivoted at both sides of the main member and can swing up and down relative to the main member.And two shock absorption modules are arranged to connect the main member and the two shaft members.Compared with the existing technology,The main member of the new type has a large swing angle.And when the height difference of the road surface is too large, the limiting member provided by the main member is against the bottom of the vehicle body.Avoid the damage caused by the shock absorber module hitting the vehicle body.The two shock absorption modules absorb the impact force and provide support.Provide the effect of stabilizing the car body,Avoid overturning accident due to vehicle body tilting.Therefore, the new model effectively improves the disadvantages of the existing technology in buffering and avoiding car body tilting or even overturning.Improve the stability of agricultural machinery when it moves.本新型係一種農具機的緩衝裝置，包括樞接於車體底部且可上下擺動的一主桿件以及樞接於該主桿件之兩側且可相對該主桿件上下擺動的二軸桿，並設有二避震模組連結該主桿件與該二軸桿，相較於現有技術，本新型的該主桿件具有較大的可擺動角度，且當路面高度差過大時使得該主桿件設有的一限位件抵靠該車體的底部，避免該避震模組撞擊車體造成車體的損壞，藉由該二避震模組吸收衝擊力並提供支撐，提供穩定車體的效果，避免因車體傾斜而發生翻覆的意外，故本新型有效改進現有技術對緩衝及避免車體傾斜甚至翻覆的缺點，提升農具機行進時的穩定度。
