A truck alike heavy duty unhook device comprises of a loading plate, pressure cylinder, control mechanism and on the loading plate equipped with two hanging wedges equipped respectively to both sides of the vertical slider and an horizontal slider equipped between them within the horizontal rails and both ends of the horizontal slider respectively connected with the hanging wedge and the vertical slider which also connects with the sticking point of the piston lever inside of the pressure cylinder that connects with the control mechanism. Simple structure, convenient operation, safe and reliable, extensive usage, it can ensure the stable landing of the unhooked heavy duty loading articles. |