Device for guaranteeing thickness of beam bottom steel bar protection layer

The utility model discloses a device for ensuring the thickness of a beam bottom steel bar protection layer, which comprises a supporting steel bar for penetrating through a beam steel top steel bar,a hoisting mechanism for hoisting the supporting steel bar and a fixing mechanism for fixing the supporting steel bar and the beam steel, the hoisting mechanism comprises a first supporting column, asecond supporting column located on the right side of the first supporting column, a first rotating mechanism fixedly connected with the top of the first supporting column, a second rotating mechanismfixedly connected with the top of the second supporting column, and a rotating rod connected with the first rotating mechanism and the second rotating mechanism. Due to the arrangement of the supporting steel bars, the beam steel can be conveniently supported, the beam steel is separated from the beam bottom formwork, the distance between the beam steel and the beam bottom formwork can reach a set value through the arrange