Non-woven fabric heat preservation bag with reinforcing interlayer

The utility model discloses a non-woven fabric heat preservation bag with a reinforcing interlayer, and particularly relates to the technical field of non-woven fabric heat preservation bags, the non-woven fabric heat preservation bag comprises a heat preservation bag main body and two heat preservation bag cover plates, two limiting fixing plates are arranged in the heat preservation bag main body, and four springs are fixedly arranged at the top ends of the limiting fixing plates. A connecting plate is fixedly arranged at the top ends of the four springs, two adjusting threaded sleeves are arranged at the top of the connecting plate, and adjusting threaded rods are arranged at the two ends of each adjusting threaded sleeve. Food is limited and fixed through the limiting and fixing plate, so that the food is relatively stable in the heat preservation bag main body, the situation that the food in the heat preservation bag main body is knocked over when a person walks can be prevented, waste of the food is avo