Infant and toddler feeder

1 . An infant and toddler feeder, comprising:

a first main body; and

a second main body; wherein

the first main body has a food pouch and a filling opening;

the food pouch comprises a biting and sucking area and a cylindrical temporary storage area;

the filling opening is disposed at one end of the cylindrical temporary storage area, and the biting and sucking area is disposed at the other end of the cylindrical temporary storage area;

the second main body has an opening sealing portion, a piston, and a pushing connection portion;

the opening sealing portion is matched with the filling opening for connecting the filling opening and sealing the filling opening;

the piston is matched with an inner cavity of the cylindrical temporary storage area to form a connection structure of the piston;

the pushing connection portion is connected between the piston and the opening sealing portion;

the pushing connection portion provides elastic thrust F, such that the piston has a movement trend towards the biting and sucking area;

the pushing connection portion is a barrel-shaped thin-walled cone having a first end face and a second end face,

the barrel-shaped thin-walled cone is elastic;

the first end face is connected to the piston;

the second end face is connected to the opening sealing portion;

an area of the first end face is smaller than an area of the second end face; and

when the first end face moves towards the second end face under the action of external force, the barrel-shaped thin-walled cone can elastically deform and form a nested structure.

2 . The infant and toddler feeder according to claim 1 , wherein

the opening sealing portion is an annular structure having an annular outer wall and an annular inner wall;

the annular outer wall is in interference connection with an inner wall surface of the filling opening; and

the second end face is connected to the annular inner wall of the opening sealing portion.

3 . The infant and toddler feeder according to claim 2 , comprising:

an easy-hold handle;

the easy-hold handle is disposed on a lower end face of the opening sealing portion; and

the lower end face of the opening sealing portion is another end face of the opening sealing portion parallel to an upper end face thereof.

4 . The infant and toddler feeder according to claim 1 , comprising:

a piston push rod; wherein

the piston has a front piston surface, a back piston surface and an annular piston surface;

the front piston surface faces the biting and sucking area;

the back piston surface is the other end face of the piston parallel to the front piston surface;

the annular piston surface is connected to an inner wall of the cylindrical temporary storage area to form a surface connecting with the piston; and

the piston push rod is disposed on the back piston surface and extends in an opposite direction of the elastic thrust F.

5 . The infant and toddler feeder according to claim 4 , wherein

the first end face is connected to a position A of the piston push rod;

the second end face is connected to a position B of the opening sealing portion;

a distance from the position A to the back piston surface is La;

a distance from the position B to an upper end face of the opening sealing portion is Lb;

the upper end face of the opening sealing portion is an end face of the opening sealing portion facing the biting and sucking area; and

Lb+m<La, and 2 mm≤m≤10 mm.

6 . The infant and toddler feeder according to claim 5 , wherein

0 mm≤Lb≤3 mm.

7 . The infant and toddler feeder according to claim 5 , wherein

thin-walled wall surfaces of the barrel-shaped thin-walled cone are continuous surfaces; and

when the first end face and the second end face are in a close state, air-permeable through holes are formed at a crease produced by nesting of the barrel-shaped thin-walled cone, and the air-permeable through holes penetrate through the thin-walled wall surfaces.

8 . The infant and toddler feeder according to claim 7 , wherein

n air-permeable through holes are evenly distributed on a circumference of the crease;

and 2≤n≤4.

9 . The infant and toddler feeder according to claim 7 , wherein

inner surfaces of the thin-walled wall surfaces further comprise:

anti-adhesion surface micro-marks;

the anti-adhesion surface micro-marks are surface texture and/or a concave-convex particle structure; and

the inner surfaces of the thin-walled wall surfaces are surfaces in communication with the cylindrical temporary storage area.

10 . The infant and toddler feeder according to claim 4 , wherein one or more of inner cavity surfaces of the annular piston surface and/or the cylindrical temporary storage area, a sealing surface of the opening sealing portion, and/or an inner cavity surface of the filling opening further comprise:

anti-adhesion surface micro-marks; and

the anti-adhesion surface micro-marks are surface texture and/or a concave-convex particle structure.

11 . The infant and toddler feeder according to claim 1 , wherein the barrel-shaped thin-walled cone is provided with a spiral guiding arm; and

the spiral guiding arm is configured to provide mechanical unbalanced guidance, such that the barrel-shaped thin-walled cone can rotate in a direction of the guiding arm during a compression and nesting process.

12 . The infant and toddler feeder according to claim 11 , wherein

the spiral guiding arm is one or more of a mechanically weakening recess, and/or a mechanically reinforcing protrusion, and/or wavy texture disposed on a surface of the barrel-shaped thin-walled cone.

13 . The infant and toddler feeder according to claim 1 , wherein

a sealing surface of the opening sealing portion has a plunger sealing main body and a limiting assembly;

the limiting assembly is disposed on a surface of the plunger sealing main body; and

the limiting assembly is one or more of an annular protrusion, an annular groove, a local protrusion, and a local groove.