Single section straight arm formula lorry crane lifting hook rigid fastening mechanism

The utility model belongs to the technical field of the hoist lifts by crane equipment, aim at providing a simple structure, and convenient operation's lifting hook rigid fastening mechanism, concrete technical scheme is: single section straight arm style lorry crane lifting hook rigid fastening mechanism, including jib loading boom, arm head and lifting hook, the front end at the jib loading boom is installed to the arm head, and the lifting hook is up-and-down motion under the drive of steel cord, has a lifting hook baffle by the pivot is articulated on the arm head, out of work and need the vehicle-mounted movement time when the lifting hook, unclamps a locking means, and the lifting hook baffle rotates downwards, distance between adjustment lifting hook and the arm head for the lifting hook baffle can be placed the third in and buckle the board directly over, and third the logical inslot that board and lifting hook formed of buckling is placed in to the lower extreme of packing up the lifting hook baffle with the lifting hook, then by the 2nd locking means location lifting hook baffle, at the in-process of driving a vehicle, the lifting hook baffle can guarantee that the lifting hook will not rocks for the arm head, the security of assurance driving process.