Telescopic container assembly and coffee machine

A coffee machine, comprising a cup body (20) having a main machine component disposed therein, wherein a mounting bracket (1) is disposed at an end of the cup body (20), the mounting bracket (1) is ring-shaped, and an extraction assembly is mounted on an inner side of the mounting bracket (1);

• and
• wherein the extraction assembly comprises a water inlet seat (41) and a base (45), the water inlet seat (41) being a powder tank inlet seat or a capsule tank inlet seat;
• an extraction powder tank is formed between the powder tank inlet seat and the base (45), or an extraction capsule tank is formed between the capsule tank inlet seat and the base (45);
• a powder tank outer bowl (42) is provided within the extraction powder tank, and a powder bowl (43) is installed inside the powder tank outer bowl (42), when the water inlet seat (41) is a powder tank inlet seat, the water inlet seat (41) covers the powder bowl (43) and cooperates with the powder tank outer bowl (42) to clamp the powder bowl (43);
• and
• a rupturing plate (49) is provided within the extraction capsule tank and is arranged on the base (45), when the water inlet seat (41) is a capsule tank inlet seat, the capsule tank inlet seat forms a cavity suitable for a coffee capsule, a piercing needle (446) is disposed on the upper side of the capsule tank inlet seat, and the capsule tank inlet seat cooperates with the base (45) to clamp the edge of the capsule.