Cylinder rapid engagement device in an electrical spray gun

A cylinder rapid engagement device in an electrical spray gun comprising:

• a gun housing integrally made of metallic material and having an electromagnet in a middle portion, an oscillator extending downward from a lateral side of said electromagnet, an adjustable rod connected to a swivel button in rear end of said gun housing engageable with said oscillator, a plunger biased by a second spring means under said electromagnet and engageable with said oscillator, a trigger switch in a handle of said gun housing electrically connected to said electromagnet, a semi-cylindrical receiving space abutting a rectangular guide thereunder in front end of said gun housing and a pair of retaining holes symmetrically formed in lateral walls of said gun housing communicated with said rectangular guide;
• a cylinder integrated with a rectangular block and a lid insertable into said semi-cylindrical receiving space and said rectangular guide of said housing, said cylinder having a nozzle on front end, a non-retain valve biased by a first spring in front portion, an opening in rear end to receive front end of said plunger, a paint container releasably connected to said lid on their inner and outer threads, a pair of first and second vertical tubes spacedly formed in said lid through said rectangular block to communicate said cylinder to said paint container, a pair of elastic plates symmetrically extended rearward from lateral sides abutting front end of said rectangular block to form an angle with said rectangular block therebeen and each having a flat retaining piece on an outer surface abutting free end made engageable with said retaining holes of said gun housing, a pair of first guiding plates symmetrically to formed on opposing lateral sides abutting read end thereof and each having a first sloped surface on an outer surface and a pair second guiding plates symmetrically formed on roots of said elastic plates and each having a second sloped surface on an outer surface thereof.