Large-stroke electric headrest structure for car seat

Abstract

A large-stroke electric headrest structure for a car seat, comprising: two guide rods () that are disposed in a same direction; a headrest body () externally connected with a slider (), the slider () being provided with two through holes for the guide rods and a threaded through-hole all of which are disposed vertically, and the two guide rods () being disposed slidably in the two through holes, respectively; a supporting plate () connected to the two guide rods () and provided with a vertical through hole (d) aligned with the threaded through-hole; and a driving motor () mounted in a tiltable manner on a side of the supporting plate () away from the slider (), wherein an elastic energy-absorbing plate () is padded between the driving motor () and the supporting plate (), the driving motor () is connected in a transmission manner with a lead screw () movably inserted in the vertical through hole (d), an end of the lead screw () away from the driving motor () is screwed in the threaded through-hole, and a gap is reserved between the vertical through hole (d) and the lead screw ().