Adjustable sealing device for high-pressure airless spray gun

The adjustable sealing device comprises a gun head, a sealing mechanism and a locking mechanism, a spraying head is arranged at the front end of the outer wall of the gun head, spraying holes are formed in the inner wall of the spraying head, the sealing mechanism is arranged on the outer wall of the spraying head in a sleeved mode, and the locking mechanism is installed on the outer side wall of the gun head. Through the arrangement of the sealing mechanism, the sealing sleeve can be inserted into the magnetic attraction ring, then the sealing sleeve is fixed in the magnetic attraction ring through magnetic work, when the spray head is not used, the sealing sleeve can be rotated, and the through holes in the sealing sleeve and the spray holes in the spray head are staggered, so that the spray head is convenient to use. The nozzle can be sealed through the sealing sleeve, and the situation that in the daily storage process, a spraying hole in the nozzle is polluted by dust and stains, blockage is caused, and