Heating device

The invention relates to the technical field of life electric appliances, and discloses a heating device which comprises a frame body, a middle layer heating assembly is arranged in the middle of the frame body, an upper elastomer is connected to the top of the frame body, a lower elastomer is connected to the bottom of the frame body, an upper layer heating assembly is fixedly connected to the lower surface of the upper elastomer, and a lower layer heating assembly is fixedly connected to the upper surface of the lower elastomer. The upper-layer heating assembly and the lower-layer heating assembly are both located in the frame body, a first heating space is formed between the upper-layer heating assembly and the middle-layer heating assembly, and a second heating space is formed between the middle-layer heating assembly and the lower-layer heating assembly; in a natural state, the upper elastomer and the lower elastomer are respectively close to the middle-layer heating assembly; the upper elastic body elas