The application discloses a kind of automobile seat slide rail mechanisms, it is related to the technical field of automobile seat, including slide rail mechanism ontology,
brake mechanism is arranged on the slide rail mechanism ontology,
brake mechanism includes two rectangular holes, two first rectangular grooves, four second rectangular grooves, multiple tooth slots and controller, the inside of single-hole L-shaped block is equipped with rotational speed sensor, the outer surface of two The circular rod is fixed with gear sleeve, the inner wall of each second rectangular groove is equipped with first non-slip pad, the inner wall of each annular hole is equipped with electric push rod, the telescopic end one end of each electric push rod is equipped with
brake plate, the opposite end of each brake plate is equipped with second non-slip pad, the present application can be broken when the bar occurs on slide rail mechanism,
emergency brake operation is carried out to automobile seat, that is, reduce the probability that the life and health of occupant are in danger, to improve the use efficiency of automobile seat slide rail mechanism.