The invention discloses a paint-spraying suspension device. The paint-spraying suspension device comprises a guide rail and a tackle, wherein wheels are mounted at the top ends of the inner side of the tackle, a support is mounted at the bottom end of the tackle, an ejector pin is mounted at the bottom end of the support, a sleeve sleeves the bottom end of the outer wall of the ejector pin, an
insertion rod is mounted at the left end of a retaining plate, an
insertion groove is arranged in the right outer wall of the ejector pin, support rods are mounted on the left and right sides of the bottom end of the sleeve, and hooks are mounted at the bottom ends of the support rods. The paint-spraying suspension device has the advantages that by the coordination of the tackle, the
insertion rod and the insertion groove, the tackle can slide leftwards and rightwards at the bottom end of the guide rail, a pull rod is driven to move rightwards by pulling a
handle rightwards, the pull rod drives the insertion rod to move rightwards to leave the insertion groove through the retaining plate, the sleeve can move up and down on the outer wall of the ejector pin to regulate the height of the hooks, the retaining plate drives the insertion rod to move leftwards under the elastic effect of a first compression spring when the
handle is released, the insertion rod is leftwards inserted into the insertion groove, and the sleeve is fixed; the height of the hooks can be regulated conveniently, and the use requirements of users can be satisfied.