Child booster seat assembly

A child booster seat assembly comprising:

• a base seat whereon a first seating area is formed;
• an upper seat whereon a second seating area is formed, the upper seat being detachably installed on the base seat, at least one first guiding structure being formed on the upper seat, and the at least one first guiding structure protruding from a rear bottom portion of the upper seat and extending vertically for guiding the upper seat to be aligned with the base seat when the upper seat is installed on the base seat;
• and
• a latch mechanism for latching the upper seat on the base seat and comprising:
• an actuator movably disposed on the upper seat;
• and
• at least one first engaging structure movably disposed on the at least one first guiding structure and movable between a locking position and a releasing position, when the at least one first engaging structure is located at the locking position, the upper seat being restrained from being detached from the base seat, and when the actuator drives the at least one first engaging structure to move to the releasing position, the upper seat being allowed to be detached from the base seat.

A child booster seat assembly comprising:

• a base seat whereon a first seating area is formed;
• an upper seat whereon a second seating area is formed, the upper seat being detachably installed on the base seat, at least one first guiding structure and at least one second guiding structure being formed on the upper seat and the base seat respectively, the at least one first guiding structure protruding from a rear bottom portion of the upper seat, the at least one first guiding structure and the at least one second guiding structure cooperating with each other for guiding the upper seat to be aligned with the base seat when the upper seat is installed on the base seat, the upper seat comprising a seat bottom and a seat back, the seat back comprising an upper portion and a lower portion, the lower portion being pivotally disposed on the seat bottom, and the upper portion being detachably installed on the lower portion;
• and
• a latch mechanism for latching the upper seat on the base seat and comprising:
• an actuator movably disposed on the upper seat;
• at least one first engaging structure movably disposed on the at least one first guiding structure and connected to the actuator;
• and
• at least one second engaging structure formed inside the at least one second guiding structure and located at a position corresponding to the at least one first engaging structure for engaging with or disengaging from the at least one first engaging structure.