Last elevating gear of infant dining chair suitable for have electric swing

The utility model relates to a last elevating gear of infant dining chair suitable for have electric swing, including left mainframe box, right mainframe box, be connected with left front special -shaped foot pipe and left back special -shaped foot pipe on this left side mainframe box, be connected with right front special -shaped foot pipe and right back special -shaped foot pipe on the right mainframe box, the inside wall of left mainframe box, right mainframe box on install a rocking arm respectively, a seat angle and elevating gear mechanism are installed respectively to the upper end of two rocking arms, it has the running -board to link between the lower extreme of two rocking arms, two rocking arms on be equipped with five respectively and present the inferior lift span of equalling divide cloth, buckle piece with being equipped with in corresponding seat angle of this lift span and the elevating gear mechanism, form elevating gear, the utility model has the advantages of simple structure, design benef