Patent ID: 8857113

Claim:
A locking apparatus for mounting a photovoltaic module on a rack, the rack comprising a bottom wall, two sidewalls extending up from opposite sides of the bottom wall, and two limiting plates extending inward and down respectively from tops of the two sidewalls, an opening defined between the two limiting plates, the locking apparatus comprising: a pressing member defining a first through hole; a bolt comprising a head and a threaded portion; and a mounting member, wherein the mounting member comprises a base, a neck portion extending up from a middle of the base, a head portion extending up from a top of the neck portion, and two arms respectively extending outward from opposite sides of the head portion; wherein the neck portion of the mounting member is received in the opening, a top of the base abuts bottoms of the limiting plates, the arms abut inner surfaces of the limiting plates, the threaded portion extends through the first through hole, and the opening of the rack to be screwed into the mounting member, wherein a through slot is defined in the head portion, a second through hole is defined in a top of the head portion and communicates with the through slot, a nut is received in the second through hole; and the threaded portion extends through the first through hole, the opening of the rack, and the second through hole, in that order, to be screwed into the nut, wherein two stepped portions are formed at opposite sidewalls bounding the through slot, and the nut is supported on the two stepped portions.