Child booster seat and height-adjustment mechanism thereof

A child booster seat, comprising:

• a seat body;
• a seat base coupled to and vertically movable relative to said seat body;
• and
• a height-adjustment mechanism mounted between said seat body and said seat base for locking releasably said seat body at a desired height relative to said seat base;
• wherein said height-adjustment mechanism is operable to release locking engagement between said seat base and said seat body and is configured for exerting a pulling force for pulling said seat base to move vertically relative to said seat body to adjust the height of said seat body relative to said seat base when the locking engagement between said seat base and said seat body is released.

A height-adjustment mechanism for a child booster seat, the child booster seat including a seat body and a seat base coupled to and vertically movable relative to the seat body, said height-adjustment mechanism comprising:

• a support structure adapted for mounting co-movably to the seat body and formed with a plurality of positioning holes that are vertically spaced apart;
• a latching component adapted for coupling movably to the seat base, said latching component including a stop piece for engaging a selected one of the positioning holes to releasably lock the seat body at a desired height relative to the seat base, and a manually operable part for moving said stop piece away from the positioning holes to release locking engagement between the seat base and the seat body;
• and
• a first biasing member for biasing said stop piece toward the positioning holes.