Air inlet device of spherical puffing pump for ice cream machine

An air inlet device of a spherical puffing pump for an ice cream machine, comprising:

• an air inlet pipe;
• and
• an anti-spray seat;
• wherein the air inlet pipe is communicated with a liquid feeding hole of the spherical puffing pump through the anti-spray seat;
• the anti-spray seat is provided with an upper straight hole, a lower straight hole and a connecting hole;
• the upper straight hole is a blind hole provided on an upper end surface of the anti-spray seat, and the lower straight hole is a blind hole provided on a lower end surface of the anti-spray seat;
• the upper straight hole is communicated with the lower straight hole through the connecting hole;
• the lower straight hole is communicated with a liquid feeding channel of the liquid feeding hole, and the upper straight hole is communicated with the air inlet pipe;
• and
• a lower end of the connecting hole is provided on an inner wall of a middle of the lower straight hole, and an upper end of the connecting hole is provided on an inner wall of a lower end of the upper straight hole.