Novel expansion type plateau backpack

The utility model relates to a novel expansion type plateau knapsack which comprises a knapsack body, a main knapsack cavity is formed in the knapsack body, an auxiliary knapsack bag is arranged at the bottom of the knapsack body, an auxiliary knapsack cavity is formed in the auxiliary knapsack bag, and the top of the rear side face of the auxiliary knapsack bag is sewn to the bottom of the rear side face of the knapsack body. The top of the front side face and the tops of the two side faces of the auxiliary bag are detachably connected with the bag body through an opening and closing zipper, and the opening and closing zipper is used for opening and closing the auxiliary bag cavity. The novel expansion type plateau knapsack is reasonable in structural design, simple to operate and high in practicability, and the space can be adjusted according to the volume of placed articles. 本实用新型涉及一种新型扩容式高原背囊，包括包体，所述包体内具有一主包腔，所述包体的底部设置有一副包袋，所述副包袋内具有一副包腔，所述副包袋的后侧面顶部缝合在包体的后侧面底部，所述副包袋前侧面顶部和两侧面顶部通过一开合拉链可拆地和包体相连，所述开合拉链用于开合副包腔。