Detachable breast pump

A detachable breast pump, comprising a host machine (100), a cup (200) and a flowing channel unit (300);

• the host machine (100) comprising a variable pressure chamber (11), the cup (200) being detachably connected to the host machine (100) through the variable pressure chamber (11), and the variable pressure chamber (11) being provided thereon with a pressure transmission channel (400) extended to an inside of the host machine (100);
• and
• the flowing channel unit (300) being detachably arranged inside the cup (200) and separating an internal space of the cup (200) into a flowing channel and a milk storage bowl, and the flowing channel being communicated with the variable pressure chamber (11), the milk storage bowl and the outside;
• wherein the host machine (100) comprises a housing (12), a control module (13) and an air pump module (14);
• the housing (12) is provided with a partition plate (101) at one end and is connected to the variable pressure chamber (11) through the partition plate (101);
• and the partition plate (101) is provided thereon with a first pipe (401) configured to communicate with the variable pressure chamber (11);
• and
• the control module (13) and the air pump module (14) are both arranged inside the housing (12);
• the control module (13) is connected to the air pump module (14) in a communication manner;
• and the air pump module (14) is connected to the variable pressure chamber (11) through the first pipe (401);
• wherein the air pump module (14) comprises an air pump (141), a valve body (142) and an air pipe (143);
• the air pump (141) and the valve body (142) are each connected to the control module (13) in a communication manner;
• the air pipe (143) is constructed as a three-way pipe that is connected to the air pump (141), the valve body (142) and the first pipe (401) respectively, wherein the valve body (142) is configured to control the communication between the air pipe (143) and the outside.