Paste bottle with multistage ejection mechanism

A paste bottle with a multistage ejection mechanism, comprising

• an outer bottle (3), an upper and a lower end of which are opened, the upper end of the outer bottle (3) extending inward and radially to form a flange (38), the lower end of the outer bottle (3) being connected with a rotary seat (6) which can rotate circumferentially, and an inner wall surface of the rotary seat (6) being provided with a plurality of ribs (61) which are distributed circumferentially;
• a replaceable inner bottle (4) comprising an inner bottle body (41) and a paste seat (42) slidably disposed in the inner bottle body (41), a rotation-limiting hole (421) being provided on the paste seat (42), and an upper end of the inner bottle body (41) being limited by the flange and forming an accommodating area with the outer bottle (3);
• and
• a multistage ejection mechanism (5) arranged in the accommodating area and comprising a middle stud (51), an intermediate screw sleeve (52) and an outer screw sleeve (53) which are screwed from inside to outside in sequence, an upper end of the middle stud (51) being provided with an integral insertion part (511) that matches and inserts into the rotation-limiting hole (421), and a plurality of grooves (531) being uniformly machined on an outer circumferential surface of the outer screw sleeve (53), and the plurality of grooves (531) corresponding to the ribs (61) one by one.