Carrier mounting part and seat

Abstract

The present disclosure provides a carrier mounting part disposed on a swing arm rotatably connected to a bracket of a seat. The carrier mounting part includes: a rotating base; and a fixed base. The rotating base is provided with engaging parts, and the fixed base is provided with a positioning part. Alternatively, the rotating base is provided with an engaging part, and the fixed base is provided with positioning parts. One of the rotating base and the fixed base is provided with a side wall, and the side wall is provided with the engaging part or the positioning part. The engaging part or the positioning part disposed on the side wall includes an elastic protrusion. When the rotating base and the fixed base are relatively fixed, the elastic protrusion abuts against the engaging part or the positioning part. The present disclosure also relates to a seat.

1 . A carrier mounting part, disposed on a swing arm rotatably connected to a bracket of a seat, for mounting a carrier, wherein the carrier mounting part comprises:
 a rotating base configured to connect to the carrier; and   a fixed base configured to connect to the swing arm, the rotating base being rotatably connected to the fixed base around an axis,   wherein the rotating base is provided with at least two engaging parts, the at least two engaging parts being spaced apart in a circumferential direction around the axis, and the fixed base is provided with at least one positioning part, wherein when any one of the engaging parts abuts against the same positioning part in the circumferential direction, the rotating base is fixed relative to the fixed base;   or the rotating base is provided with at least one engaging part, and the fixed base is provided with at least two positioning parts, the at least two positioning parts being spaced apart in a circumferential direction, wherein when the same engaging part abuts against any one of the positioning parts in the circumferential direction, the rotating base is fixed relative to the fixed base;   wherein one of the rotating base and the fixed base is provided with at least one side wall extending along the circumferential direction, the at least one side wall is correspondingly provided with the engaging part or the positioning part, and the engaging part or the positioning part provided on the at least one side wall comprises an elastic protrusion located on the at least one side wall and capable of elastically deforming in a radial direction perpendicular to the axis, wherein when the rotating base is fixed relative to the fixed base, the elastic protrusion abuts against the engaging part or the positioning part correspondingly formed on the other one of the rotating base and the fixed base in the circumferential direction.   
     
     
         2 . The carrier mounting part according to  claim 1 , wherein,
 the engaging part or the positioning part provided on the at least one side wall is a positioning recess, the positioning recess comprises two elastic protrusions spaced apart and the at least one side wall located between the two elastic protrusions, and the engaging part or the positioning part correspondingly formed on the other one of the rotating base and the fixed base is a positioning protrusion, wherein when the rotating base is fixed relative to the fixed base, the two elastic protrusions abut against the positioning protrusion in the circumferential direction.   
     
     
         3 . The carrier mounting part according to  claim 2 , wherein,
 the at least one side wall is two side walls, the two side walls are spaced apart in the radial direction, and the two side walls are connected to each other through at least one connecting rib, wherein the positioning recess is provided on one of the two side walls, and the connecting rib is disposed opposite to one of the two side walls between the two elastic protrusions of the positioning recess in the radial direction.   
     
     
         4 . The carrier mounting part according to  claim 1 , wherein,
 one of the rotating base and the fixed base is provided with an inner side wall and an outer side wall extending along the circumferential direction, the inner side wall is located inside of the outer side wall and spaced apart from the outer side wall in the radial direction, and the inner side wall and/or the outer side wall is the at least one side wall, the engaging part or the positioning part formed on the other one of the rotating base and the fixed base is located between the inner side wall and the outer side wall.   
     
     
         5 . The carrier mounting part according to  claim 4 , wherein,
 the elastic protrusion is formed by protruding in the radial direction outward from the inner side wall and/or protruding in the radial direction inward from the outer side wall.   
     
     
         6 . The carrier mounting part according to  claim 1 , wherein,
 one of the rotating base and the fixed base is provided with two inner side walls and two outer side walls, the two inner side walls are spaced apart in the radial direction and connected to each other through at least one second connecting rib, the two outer side walls are spaced apart in the radial direction and connected to each other through at least one first connecting rib, and the engaging part or the positioning part formed on the other one of the rotating base and the fixed base is located between an inner side wall in the radial outside of the two inner side walls and an outer side wall in the radial inside of the two outer side walls, and the elastic protrusion is formed by protruding in the radial direction outward from the inner side wall in the radial outside of the two inner side walls and/or protruding in the radial direction inward from the outer side wall in the radial inside of the two outer side walls, the inner side wall in the radial outside of the two inner side walls and/or the outer side wall in the radial inside of the two outer side walls.   
     
     
         7 . A seat, comprising:
 a base;   a carrier located above the base;   a bracket extending upward from the base;   a swing arm having one end connected to the carrier and the other end pivotally connected to the bracket; and   the carrier mounting part according to  claim 1  disposed at the end of the swing arm connected to the carrier.   
     
     
         8 . The seat according to  claim 7 , wherein,
 further comprising at least one wheel, the at least one wheel is provided on the bracket or the base, and the at least one wheel is not in contact with a horizontal plane when the seat is placed on the horizontal plane.   
     
     
         9 . The seat according to  claim 7 , wherein,
 the swing arm is provided with a lower connecting part and at least one reinforcement part fixedly connected to the fixed base, the lower connecting part is inserted into the fixed base in a direction perpendicular to the axis, and the at least one reinforcement part is inserted into the lower connecting part in a direction intersecting with the extending direction of the lower connecting part and spaced apart from the axis.   
     
     
         10 . The seat according to  claim 9 , wherein,
 the positioning part is disposed opposite to the lower connecting part along the extending direction of the lower connecting part.