Simply install jib and roof expansion bolts's support

The utility model relates to a simply install jib and roof expansion bolts's support, including expansion bolts, expand tube, sleeve pipe, nut, outer hexagonal box spanner, lead screw, extension rod support and handle, wherein extension rod support upper end is equipped with outer hexagonal box spanner, lower extreme and is equipped with the handle perpendicularly, outer hexagonal box spanner corresponds, is used for to drive the nut and rotates with the nut, manual hexagonal box spanner outside rotation extension rod support reaches, the extension rod support is the middle round hole that corresponds with expansion bolts and lead screw that is equipped with of hollow structure or upper end, expansion bolts installs on the lead screw, the expansion bolts upper end is equipped with the expand tube, the expand tube is used for the sleeve pipe distending, makes expansion bolts fix on the roof, the nut is installed in the middle of expansion bolts. The utility model discloses simple structure easily makes, utiliz