An assembling structure includes a working element, a housing and a limiting member. The working element includes first and second pins. The housing includes an opening. The working element is located in the opening. The first and second pins of the working element extend toward an interior of the housing. The limiting member is connected to the housing. The limiting member includes a supporting plate and a convex member. The convex member includes a first abutting portion and a second abutting portion. The first pin and the second pin respectively abut against the first abutting portion and the second abutting portion.