Hook-on type baby seat

A hook-on type baby seat, comprising:

• a seat portion, and
• a main body portion;
• said main body portion including:
• a U-shaped arm assembly to support said seat portion on an upper surface of a gripped object, said U-shaped arm assembly comprising a U-shaped arm member, a pair of straight arm members, a rubber sleeve to cover an end of each of said straight arm members to form a holding end adapted to overlie said gripped object, and a pair of positioning flexible members;
• a pair of longitudinal arm members, each of said members being attached to said U-shaped arm assembly;
• a pair of gripping arm members to grip or release said gripped object, wherein one end of each of the gripping arm members is formed to bend upwardly, and a second end thereof is formed as a C-shaped member for attachment to a corresponding longitudinal arm member;
• and
• a pair of elevation controlling and adjusting members combined with said pair of longitudinal arm members and gripping arm members to allow said pair of gripping arm members to be upwardly and downwardly movable in an elevation direction of said longitudinal arm member so as to adjust and lock an elevation position of said pair of gripping arm members;
• wherein each of said elevation controlling and adjusting members comprises an elevation adjusting a locking portion, a release-or-grip control portion, a right cover and a left cover, and each of said elevation adjusting and locking portions comprises an adjusting button, a first spring, a locking button, a second spring, a stop strip, and a joint block, and each of said release-or-grip control portions comprises a handle bar, a C-shaped movable component, a casing and a third spring.