Battery pack sealing structure and battery pack

The utility model relates to a battery pack sealing structure and a battery pack. The device comprises an upper cover, a lower box body, a sealing gasket, limiting units and bolts, an upper connectingedge and a lower connecting edge which extend towards the outer side of the box body are arranged at the joint of the upper cover and the lower box body; the sealing gasket is arranged between the upper connecting edge and the lower connecting edge; the limiting unit comprises a limiting part and a connecting part, a limiting hole is formed in the sealing gasket, a through hole is formed in the lower connecting edge, the limiting unit sequentially penetrates through the limiting hole and the through hole, the limiting part is located in the limiting hole, the connecting part is in threaded connection with the through hole, a threaded hole is formed in the limiting unit, and the bolt penetrates through the upper cover and the threaded hole to connect the upper cover and the lower box. Compared with the prior art,