Patent ID: 7758111

Claim:
A foldable chair with a backrest unit comprising: a pair of front leg rods; a pair of rear leg rods, a plurality of interconnected frames, a pair of armrest rods and a seat unit being installed between two rear leg rods so as to enforce supporting strength of said rear leg rods, each of said rear leg rod respectively having a round protrusion being installed thereon, each interconnected frame being installed respectively on said front leg rods and said rear leg rods, said armrest rods being secured between said front and rear leg rods, said backrest unit comprising a first sleeve and a second sleeve and a rod unit, wherein said first sleeve having a receiving slot being engaged through one rear leg rod on one end, said second sleeve being installed on another end of said rod unit and engaged through another rear leg rod to enable said backrest unit to be engaged between said two rear leg rods.