High chair

Abstract

A high chair, including: a seat frame including a first support frame and a first seat plate disposed on the first support frame; a first backrest assembly configured to be detachably connected to the seat frame, and including a first backrest part, a barrier part, and a first connecting part connected to the seat frame; and a second backrest assembly configured to be detachably connected to the seat frame, and including a second backrest part and a second connecting part connected to the seat frame. The seat frame may be connected to one of the first backrest assembly and the second backrest assembly. When the first backrest assembly is fixedly connected to the seat frame, the high chair is in a first usage mode. When the second backrest assembly is fixedly connected to the seat frame, the high chair is in a second usage mode.

What is claimed is: 
     
         1 . A high chair, comprising:
 a seat frame comprising a first support frame and a first seat plate disposed on the first support frame;   a first backrest assembly configured to be detachably connected to the seat frame, the first backrest assembly comprising a first backrest part, a barrier part, and a first connecting part that is configured to be connected to the seat frame; and   a second backrest assembly configured to be detachably connected to the seat frame, the second backrest assembly comprising a second backrest part and a second connecting part that is configured to be connected to the seat frame,   wherein the seat frame is connectable to one of the first backrest assembly and the second backrest assembly,   when the first backrest assembly is fixedly connected to the seat frame, the high chair is in a first usage mode,   when the second backrest assembly is fixedly connected to the seat frame, the high chair is in a second usage mode, and   when neither the first backrest assembly nor the second backrest assembly is connected to the first seat plate, the high chair is in a third usage mode.   
     
     
         2 . The high chair according to  claim 1 , wherein the barrier part comprises a transverse barrier extending in a transverse direction of the first backrest assembly and lateral barriers extending in a longitudinal direction of the first backrest assembly; and the first connecting part is disposed on at least one of the transverse barrier, lateral barriers, and the first backrest part. 
     
     
         3 . The high chair according to  claim 1 , wherein: the first connecting part comprises a first vertical extension and a first longitudinal extension that are connected to each other and arranged at an angle to each other; the seat frame is provided with a first coupling groove corresponding to the first longitudinal extension; and the first longitudinal extension is configured to be inserted into the first coupling groove. 
     
     
         4 . The high chair according to  claim 3 , wherein an elastic finger is disposed on the first longitudinal extension; a first hole corresponding to the elastic finger is disposed on a wall of the first coupling groove; and when the first longitudinal extension is inserted into the first coupling groove, an elastic protrusion of the elastic finger is slidable into the first hole. 
     
     
         5 . The high chair according to  claim 3 , wherein a connection portion between the first longitudinal extension and the first vertical extension is bent to form an engaging recess, and when the first longitudinal extension is inserted into the first coupling groove, the engaging recess is engaged with an edge of the seat frame. 
     
     
         6 . The high chair according to  claim 1 , wherein the second connecting part comprises a second vertical extension and a second longitudinal extension that are connected to each other and arranged at an angle to each other; an end of the second vertical extension away from the second longitudinal extension is fixedly connected to the second backrest part; and an end of the second longitudinal extension away from the second vertical extension is insertable into a coupling channel of the seat frame. 
     
     
         7 . The high chair according to  claim 6 , further comprising a locking mechanism,
 wherein the locking mechanism comprises a locking member movably disposed on the seat frame; the second longitudinal extension is provided with a locking hole; and the locking member has a first locked position and a first unlocked position, and   wherein when the second longitudinal extension is inserted into the coupling channel, if the locking member is in the first locked position, the locking member is insertable into the locking hole, and if the locking member is in the first unlocked position, the locking member is separatable from the locking hole.   
     
     
         8 . A high chair, comprising:
 a second support frame comprising a first support bracket and a second support bracket, a first end of the first support bracket being connected to a first end of the second support bracket;   a second seat plate disposed between the first support bracket and the second support bracket;   a first backrest assembly configured to be detachably and pivotally connected to the second support frame, and the first backrest assembly comprising a seat part and a first backrest part; and   a second backrest assembly configured to be detachably connected to the second support frame,   wherein the second support frame is connectable to one of the first backrest assembly and the second backrest assembly,   when the first backrest assembly is mounted to the second support frame and is in a first pivoted position, the high chair is in a first usage mode,   when the first backrest assembly is mounted to the second support frame and is in a second pivoted position, the high chair is in a second usage mode, and   when the second backrest assembly is mounted to the second support frame, the high chair is in a third usage mode.   
     
     
         9 . The high chair according to  claim 8 , further comprising a pivotable member rotatably disposed on the second support frame,
 wherein one of the pivotable member and the first backrest assembly is provided with a mounting recess, and another of the pivotable member and the first backrest assembly is provided with a mounting protrusion; and the mounting recess cooperates with the mounting protrusion to rotatably mount the first backrest assembly to the second support frame.   
     
     
         10 . The high chair according to  claim 9 , further comprising a fixing mechanism disposed at the mounting protrusion,
 wherein the fixing mechanism comprises:
 a first operating member comprising a driving slope; and 
 an engaging member movably disposed on the mounting protrusion and having a second locked position and a second unlocked position, the engaging member comprising an engaging body and a post protruding from the engaging body, 
   wherein a first engaging groove is disposed in the mounting recess,   when the engaging member is in the second locked position, the engaging body is engaged with the first engaging groove, and the first operating member is operable to push the engaging member to move to the second unlocked position through the driving slope, and   when the engaging member is in the second unlocked position, the engaging body is disengaged from the first engaging groove.   
     
     
         11 . The high chair according to  claim 9 , wherein a first mounting base is disposed on the first end of the first supporting bracket, and a second mounting base is disposed on the first end of second supporting bracket, and the first mounting base and the second mounting base are fastened to each other form a mounting cavity; and
 wherein the high chair further comprises an inclination adjusting mechanism comprising:
 a limiting member movably disposed in the mounting cavity and having a third locked position and a third unlocked position, a first limiting part being disposed at an edge of the limiting member; 
 a second operating member disposed on the first mounting base and movable in an axial direction of the first mounting base; and 
 a second limiting part fixed to the pivotable member, at least a portion of the second limiting part extending into the mounting cavity, 
   wherein the pivotable member is rotatably disposed on the second mounting base,   when the limiting member is in the third locked position, the second limiting part is engaged with the first limiting part, and the second operating member is operable to push the limiting member to move to the second unlocked position, and   when the limiting member is in the third unlocked position, the second limiting part is disengaged with the first limiting part.   
     
     
         12 . The high chair according to  claim 11 , wherein the inclination adjusting mechanism further comprises a third reset member disposed between the second mounting base and the limiting member, and the third reset member is adapted to bias the limiting member to move toward the third locked position. 
     
     
         13 . The high chair according to  claim 11 , wherein the second mounting base is provided with an arc-shaped second limiting groove; the second limiting part extends into the mounting cavity through the second limiting groove; and when the pivotable member rotates relative to the second mounting base, the second limiting part moves along the second limiting groove. 
     
     
         14 . The high chair according to  claim 8 , wherein the second support frame further comprises a first connecting frame and a second connecting frame; a first side of the first connecting frame is pivotally connected to the first support bracket; a first side of the second connecting frame is pivotally connected to the second supporting bracket; and a second side of the first connecting frame is connected to a second side of the second connecting frame; and
 wherein the second seat plate is fixedly connected to the first connecting frame; the second supporting frame is switchable between an unfolded state and a folded state; and when the second supporting frame is in the unfolded state, the second seat plate is disposed above the first connecting frame and the second connecting frame.   
     
     
         15 . The high chair according to  claim 14 , further comprising an engaging mechanism comprising:
 a first engaging part operatively disposed on the second seat plate; and   a second engaging part disposed on a side of the second connecting frame away from the first connecting frame,   wherein the first engaging part is engageable with the second engaging part to lock the second support frame in the unfolded state; and the first engaging part is operable to be disengaged from the second engaging part, to unlock the second support frame in the unfolded state.   
     
     
         16 . A high chair, comprising:
 a second support frame comprising a first support bracket and a second support bracket, a first end of the first support bracket being connected to a first end of the second support bracket;   a second seat plate disposed between the first support bracket and the second support bracket; and   a pivotable member rotatably disposed on the second support frame, and configured to be connected to a first backrest assembly or a second backrest assembly to enable the first backrest assembly or the second backrest assembly to be mounted,   wherein when the pivotable member is connected to the first backrest assembly and is in a first pivoted position, the high chair is in a first usage mode,   when the pivotable member is connected to the first backrest assembly and is in a second pivoted position, the high chair is in a second usage mode, and   when the pivotable member is connected to the second backrest assembly, the high chair is in a third usage mode.   
     
     
         17 . The high chair according to  claim 16 , further comprising a limiting member movably disposed on the second support frame and having a third locked position and a third unlocked position,
 wherein when the limiting member is in the third locked position, a rotation of the pivotable member relative to the second support frame is limited, and   when the limiting member is in the third unlocked position, limitation on the rotation of the pivotable member relative to the second support frame is released so that the pivotable member is switchable between the first pivoted position and the second pivoted position.   
     
     
         18 . The high chair according to  claim 16 , wherein the pivotable member is switchable among the first pivoted position, the second pivoted position, and a third pivoted position, and when the high chair is in the third usage mode, the pivotable member is in the third pivoted position. 
     
     
         19 . The high chair according to  claim 18 , wherein when the high chair is in the first usage mode or the second usage mode, the first support bracket is positioned in front of the second support bracket, and when the high chair is in the third usage mode, the second support bracket is positioned in front of the first support bracket. 
     
     
         20 . The high chair according to  claim 19 , wherein an upper portion of the second support bracket is formed as a curved rod, and when the high chair is in the third usage mode, the curved rod is configured as an armrest.