Patent attributes
The present invention discloses a headrest height adjustment mechanism for child safety seats, which comprises a backrest (1), a headrest (2) and an adjustment device (3); wherein the adjustment device comprises a limiting block (31), a spring (33), an adjustment bar (32) capable of sliding up and down inside the mounting chamber (21); the limiting block (31) has a blocking portion (311); the adjustment bar (32) has a driving portion (321); the spring (33) is disposed between the adjustment bar (32) and the headrest (2) and enables the adjustment bar (32) to have a trend to slide downward. Compared with the prior art, the headrest height adjustment mechanism for child safety seats is convenient for operation and has high reliability of locking and unlocking.
