Building engineering quality detection device and detection method thereof

The invention discloses a constructional engineering quality detection device and a detection method thereof, and belongs to the technical field of engineering detection.The detection device comprises two supporting beams, a plurality of first telescopic rods are fixedly arranged on the inner sides of the supporting beams, a plurality of second telescopic rods are fixedly connected to the bottom ends of the first telescopic rods, and U-shaped plates are fixedly connected to the second telescopic rods; a plurality of grouting openings are formed in the U-shaped plate, a rack is further fixedly arranged on the side face of the U-shaped plate, a stirring box is further fixedly arranged on the supporting beam and communicates with a plurality of liquid distribution valves, the liquid distribution valves communicate with output heads correspondingly, the output heads are fixedly connected with a transverse plate, a movable support is slidably arranged on the transverse plate, and a connecting rod is rotationally a