Novel sliding door hook lock body

The utility model discloses a novel sliding door hook lock body which comprises a shell, a rotating piece is arranged on the left side of the top of an inner cavity of the shell, a linkage piece is connected to the right side of the rotating piece in an attached mode, a torsional spring is arranged on the surface of the linkage piece, and a safety device is arranged on the right side of the top of the inner cavity of the shell. The handle is used for rotating the rotating sheet to drive the linkage sheet, the torsion spring fixed on the linkage sheet can automatically reset, the linkage sheet is used for driving the transmission plate, the transmission plate is used for driving the coupler knuckle to open the door, the door is locked after the coupler knuckle is popped out by the transmission plate, and then the key is used for rotating the safety device to separate the safety device from the transmission plate. A door can be opened by rotating the handle, a steel ball hole and a spring are arranged in the sa