Nursing seat

A nursing seat, comprising:

• a cushion and a backrest and/or an armrest connected to the cushion;
• wherein the cushion comprises:
• a seat base;
• a through hole formed in a middle of the seat base;
• a supporting structure disposed below the through hole, and an accommodating space being formed between the supporting structure and the seat base;
• and a collecting box detachably accommodated in the accommodating space;
• wherein:
• each of the backrest and/or the armrest is detachably connected to the cushion via an connecting structure, and the connecting structure comprises a mounting hole structure disposed on the cushion and a mounting structure disposed on the backrest or the armrest;
• wherein,
• the mounting hole structure comprises:
• a splicing hole formed in the cushion and extending towards an inside of the cushion;
• a step surface formed on a hole wall of the splicing hole and dividing the hole wall into a first hole wall and a second hole wall;
• the second hole wall being located on a same side with the step surface and enlarging a size of the splicing hole relative to the first hole wall;
• and
• two limiting clamping points formed on two sides of the second hole wall and protruding towards each other in a direction parallel to the step surface, and gaps being formed between the two limiting clamping points and the second hole wall;
• the mounting structure comprises:
• a splicing part disposed on the backrest or the armrest and insertable into the splicing hole;
• and
• everted protrusions obliquely extending outwards along two sides of a bottom of the splicing part to form a wing-shaped structure;
• and when the splicing part is inserted into the splicing hole, top ends of the everted protrusions being abutted with the step surface, and sides of the everted protrusions being clamped into the gaps between the two limiting clamping points and the second hole wall to form interference fit.