Assembly structure and liquid storage bottle of hand wash liquid soap dispenser

An assembly structure of a hand wash liquid soap dispenser comprising:

• a main body casing;
• and
• a liquid storage bottle,
• wherein the assembly structure of the hand wash liquid soap dispenser further comprises an external snapping head snap-fitted on a bottle mouth of the liquid storage bottle, a plurality of protruded flexible snaps are provided at intervals on an outer periphery of an upper end of the external snapping head, a recessed groove engaged with the outer periphery of the external snapping head is provided on a bottom part of the main body casing, and a plurality of first snaps or snap grooves corresponding to the flexible snaps are provided on an inner wall of the recessed groove, a suction nozzle extending downward and protruding beyond the recessed groove is disposed on one side of the recessed groove, and a recessed hole for the suction nozzle to be inserted in and sealed is provided on the external snapping head, a through-hole communicating with an inside of the liquid storage bottle is provided on a bottom part of the recessed hole.