Abstract: A switch structure has a housing and a cover. The housing includes a receiving portion and the position point, the position point is disposed at a groove wall of the receiving portion. The cover is pivotally connected to the housing, the cover system can be received in the receiving portion. The cover comprises a position sheet. The position sheet has at least one elastic section and a fixed point. The fixed point corresponds to the position point. The fixed point has a fixing direction corresponding to the position point. The elastic section has an elastic direction. The elastic direction and the fixing direction are substantially parallel.

Abstract: A protective case includes a main body and a fixing strap. The fixing strap includes a first elastic part, a second elastic part and a connecting part. The first elastic part and the second elastic part are respectively connected with two lateral sides of an inner surface of the main body. The first elastic part and the second elastic part have plural openings, so that the elastic forces of the first elastic part and the second elastic part are adjustable. The connecting part is connected with the first elastic part and the second elastic part. The connecting part is accommodated within a hollow portion of the main body, and coplanar with an outer surface of the main body. When the connecting part is pulled, the first elastic part and the second elastic part deform, so that an object is held between the connecting part and the main body.