Quick dismounting and mounting device for fire engineering construction

The utility model discloses a quick dismounting device for fire engineering construction, which comprises a dismounting device body, one side of the dismounting device body is provided with a protective sleeve, the two sides of the outer surface of the protective sleeve are respectively provided with a strip-shaped guide groove, and one side of the inner wall of each strip-shaped guide groove is provided with a fixing groove. A rotating head is fixedly mounted on the front end face of the dismounting device body, an annular mounting groove extending into the rotating head is formed in the front end face of the rotating head, a guide strip is fixedly arranged on each of the two sides of the inner wall of the annular mounting groove, and a fixing block storage groove extending into the rotating head is formed in one side of the outer surface of each guide strip. A square through opening is formed in one side of the inner wall of the fixing block containing groove, and the other end of the square through opening