Foam dispenser and hand sanitizer dispenser

A hand sanitizer dispenser characterized in that:

• it comprises a housing (100), a liquid supply unit (200), a first liquid outlet passage (300), a second liquid outlet passage (400), and a foaming assembly (500), wherein,
• the housing (100) is provided with a transition chamber (110), an inlet (120) communicating with the transition chamber (110), and an outlet (130) communicating with the transition chamber (110);
• the foaming assembly (500) is detachably disposed in the transition chamber (110);
• a liquid outlet of the liquid supply unit (200) communicates with a first end of the first liquid outlet passage (300);
• a second end of the first liquid outlet passage (300) communicates with the inlet (120);
• the outlet (130) communicates with an end of the second liquid outlet passage (400);
• and such that a liquid-gas mixture provided by the liquid supply unit (200) sequentially flows through the first liquid outlet passage (300), the inlet (120), the foaming assembly (500), the outlet (130), and the second liquid outlet passage (400) to be dispensed;
• and
• the foaming assembly (500) comprises a first foaming mesh (520), a second foaming mesh (530), and a support ring (540);
• and the first foaming mesh (520) and the second foaming mesh (530) are positioned at two ends of the support ring (540).

A foam dispenser comprising a housing (100), a liquid supply unit (200), a first liquid outlet passage (300), a second liquid outlet passage (400), and a foaming assembly (500), wherein,

• the housing (100) is provided with a transition chamber (110), an inlet (120) communicating with the transition chamber (110), and an outlet (130) communicating with the transition chamber (110);
• the foaming assembly (500) is detachably disposed in the transition chamber (110);
• a liquid outlet of the liquid supply unit (200) communicates with a first end of the first liquid outlet passage (300);
• a second end of the first liquid outlet passage (300) communicates with the inlet (120);
• the outlet (130) communicates with a first end of the second liquid outlet passage (400);
• and such that a liquid-gas mixture provided by the liquid supply unit (200) sequentially flows through the first liquid outlet passage (300), the inlet (120), the foaming assembly (500), the outlet (130), and the second liquid outlet passage (400) to be dispensed;
• the transition chamber (110) further has an installation opening (140);
• and the foaming assembly (500) is detachably installed in the transition chamber (110) through the installation opening (140);
• the foam dispenser further comprises a sealing cover (600);
• and the sealing cover (600) detachably covers the installation opening (140);
• and
• the transition chamber (110) comprises a first sub-chamber (111) and a second sub-chamber (112) in communication with each other;
• the inlet (120) communicates with the outlet (130) sequentially through the first sub-chamber (111) and the second sub-chamber (112);
• the foaming assembly (500) is at least partially positioned in the second sub-chamber (112);
• and the installation opening (140) directly communicates with the first sub-chamber (111).