Back row automobile seat backrest lock structure and automobile seat

• Main Authors: MIAO HUI, LIU LINSEN
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: PERFORMING OPERATIONS; SEATS SPECIALLY ADAPTED FOR VEHICLES; TRANSPORTING; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR; VEHICLES IN GENERAL

The invention belongs to the technical field of automobile seats, and particularly relates to a back row automobile seat backrest lock structure which comprises a lock ring fixedly installed on an automobile body and a lock body installed on a backrest, a check block is fixedly arranged at the rear end of the upper portion of a first locking cam, a connecting block is fixedly arranged at the rear end of a second locking cam, and the check block is located above the connecting block. A first locking part is fixedly arranged on the rear portion of the lower end of the first locking cam, the lock hook cam is rotationally installed on the second rotating shaft, a locking groove is formed in the lock hook cam, a protruding block is integrally formed in the position, on the rear side of the locking groove, of the upper portion of the lock hook cam, and when the back lock structure is in a locking state, the first locking part abuts against the end portion of the front end of the protruding block. The elastic stretc