High-pressure airless spray nozzle assembly

A high-pressure airless spray nozzle, comprising:

• a spray tip guard;
• a spray tip configured to be inserted into the spray tip guard perpendicularly to the axis of the spray tip guard;
• and
• a saddle seal assembly configured to be inserted into the spray tip guard along the axis of the spray tip guard,
• wherein the saddle seal assembly includes:
• a metal sealing sleeve including a first saddle-shaped semi-cylinder surface closely matching with an outer surface of the spray tip to form an outer hard sealing structure;
• and
• a cylindrical elastic seal including a second saddle-shaped semi-cylinder surface closely matching with the outer surface of the spray tip to form an inner flexible sealing structure,
• wherein a first end portion of the cylindrical elastic seal is configured to be inserted into the metal sealing sleeve, and
• wherein the first saddle-shaped semi-cylinder surface and the second saddle-shaped semi-cylinder surface are configured to be spliced to form a continuous saddle-shaped semi-cylinder surface, to thereby seal a stepped inlet hole of the high-pressure airless spray nozzle.