Conveniently foldable high chair

Abstract

A conveniently foldable high chair comprises a joint assembly and a front bipod, a rear bipod, a backrest assembly and a dinner plate which are connected with the joint assembly respectively and are mutually rotatable. The joint assembly is provided with a first lock unit for locking the joint assembly to prevent the joint assembly from rotating. A collection belt assembly for driving the first lock unit to be unlocked is disposed on the front bipod and driven to unlock the first lock unit. The front bipod, the rear bipod, the backrest assembly and the dinner plate connected with the joint assembly are folded under the gravity thereof, so that the objective of folding and collection in one second can be achieved. Moreover, after the front bipod, the rear bipod, the backrest assembly and the dinner plate are folded through the joint assembly, the volume is very small.

What is claimed is: 
     
         1 . A conveniently foldable high chair, comprising a joint assembly ( 1 ) and a front bipod ( 2 ), a rear bipod ( 3 ), a backrest assembly ( 4 ) and a dinner plate ( 5 ) being connected with the joint assembly ( 1 ) respectively and mutually rotatable, wherein the joint assembly ( 1 ) is provided with a first lock unit ( 6 ) for locking the joint assembly ( 1 ) to prevent the joint assembly ( 1 ) from rotating; a collection belt assembly ( 7 ) for driving the first lock unit ( 6 ) to be unlocked is disposed on the front bipod ( 2 ) and driven to unlock the first lock unit ( 6 ); and hence the joint assembly ( 1 ) is driven to rotate to achieve the objective of collection. 
     
     
         2 . The conveniently foldable high chair according to  claim 1 , wherein the joint assembly ( 1 ) includes a front leg joint ( 11 ), a rear leg joint ( 12 ) movably mounted into the front leg joint ( 11 ), and a backrest joint ( 13 ), a rotating base ( 14 ) and a dinner plate joint ( 15 ) mounted on the outside of the front leg joint ( 11 ); the front leg joint ( 11 ), the rear leg joint ( 12 ), the backrest joint ( 13 ) and the dinner plate joint ( 15 ) are respectively assembled with the front bipod ( 2 ), the rear bipod ( 3 ), the backrest assembly ( 4 ) and the dinner plate ( 5 ); the first lock unit ( 6 ) is disposed in the rear leg joint ( 12 ); and the front leg joint ( 11 ), the rear leg joint ( 12 ), the backrest joint ( 13 ), the rotating base ( 14 ) and the dinner plate joint ( 15 ) may rotate relatively. 
     
     
         3 . The conveniently foldable high chair according to  claim 2 , wherein the first lock unit ( 6 ) includes a linkage pull rod ( 61 ) which can slide up and down and is mounted in the rear leg joint ( 12 ), and a first spring ( 62 ) which is configured to provide a reset force for the linkage pull rod ( 61 ); the linkage pull rod ( 61 ) is connected with the collection belt assembly ( 7 ) and provided with a first iron pin ( 611 ) and a second iron pin ( 612 ); both the first iron pin ( 611 ) and the second iron pin ( 612 ) run through the front leg joint ( 11 ), the rear leg joint ( 12 ), the backrest joint ( 13 ), the rotating base ( 14 ) and the dinner plate joint ( 15 ); and the high chair further includes a third iron pin ( 144 ) which runs through the front leg joint ( 11 ), the backrest joint ( 13 ), the rotating base ( 14 ) and the dinner plate joint ( 15 ) and is connected with the rear leg joint ( 12 ). 
     
     
         4 . The conveniently foldable high chair according to  claim 3 , wherein the rear bipod ( 3 ) is also provided with a secondary button ( 31 ) for locking the linkage pull rod ( 61 ). 
     
     
         5 . The conveniently foldable high chair according to  claim 3 , wherein the front leg joint ( 11 ) is provided with a mounting position ( 111 ) for the mounting of the rear leg joint ( 12 ); a first chute ( 112 ) and a second chute ( 113 ) running through the mounting position ( 111 ) are formed at both sides of the front leg joint ( 11 ); the first iron pin ( 611 ) and the second iron pin ( 612 ) fall into the first chute ( 112 ) and the second chute ( 113 ) respectively; the first chute ( 112 ) and the second chute ( 113 ) are curved grooves; front leg joint clamping sections ( 1121 ,  1132 ) bending towards the same direction are respectively disposed at tail ends of the first chute ( 112 ) and the second chute ( 113 ); and the front leg joint ( 11 ) is provided with a first run-through groove ( 114 ) for the third iron pin ( 144 ) to run through. 
     
     
         6 . The conveniently foldable high chair according to  claim 3 , wherein the rotating base ( 14 ) is provided with a third chute ( 141 ) and a fourth chute ( 142 ) for the first iron pin ( 611 ) and the second iron pin ( 612 ) to run through and is also provided with a fifth chute ( 143 ); the third iron pin ( 144 ) runs through the fifth chute ( 143 ); when the joint assembly ( 1 ) is in the unfolded state, the positions of the third chute ( 141 ) and the fourth chute ( 142 ) and the positions of corresponding first chute ( 112 ) and corresponding second chute ( 113 ) are staggered respectively; rotating base clamping sections ( 1411 ,  1422 ) bending towards the same direction are respectively disposed at tail ends of the third chute ( 141 ) and the fourth chute ( 142 ); and when the joint assembly ( 1 ) is in the unfolded state, the positions of the rotating base clamping sections ( 1411 ,  1422 ) correspond to the positions of the front leg joint clamping sections ( 1121 ,  1132 ). 
     
     
         7 . The conveniently foldable high chair according to  claim 6 , wherein the backrest joint ( 13 ) is provided with a sixth chute ( 131 ) for the first iron pin ( 611 ) and the third iron pin ( 144 ) to run through and a seventh chute ( 132 ) for the second iron pin ( 612 ) to run through; the dinner plate joint ( 15 ) is provided with an eighth chute ( 151 ), a ninth chute ( 152 ) and a tenth chute ( 153 ) for the first iron pin ( 611 ), the second iron pin ( 612 ) and the third iron pin ( 144 ) to run through respectively; when the joint assembly ( 1 ) is in the unfolded state, the shape and the position of the eighth chute ( 151 ) and the ninth chute ( 152 ) correspond to those of corresponding first chute ( 112 ) and corresponding second chute ( 113 ) respectively; and the position of the fifth chute ( 143 ) and the position of the tenth chute ( 153 ) are staggered. 
     
     
         8 . The conveniently foldable high chair according to  claim 2 , wherein the backrest assembly ( 4 ) includes a backrest frame ( 41 ), a backrest adjustment mechanism ( 42 ) mounted on the backrest frame ( 41 ) and configured to adjust the angle of the backrest frame ( 41 ), and an adjustment button ( 43 ) configured to drive the backrest adjustment mechanism ( 42 ) to operate, in which the backrest adjustment mechanism ( 42 ) includes a positioning pull rod ( 421 ) mounted in the backrest frame ( 41 ) and a second spring ( 422 ) configured to provide an elastic force for the positioning pull rod ( 421 ); and one end of the positioning pull rod ( 421 ) is connected with the adjustment button ( 43 ) through a first steel wire ( 423 ) and the other end is provided with an embedding block ( 424 ) which is embedded into one of a plurality of adjusting and positioning grooves ( 145 ) formed on the outer edge of the rotating base ( 14 ). 
     
     
         9 . The conveniently foldable high chair according to  claim 3 , wherein the collection belt assembly ( 7 ) includes: a mounting base ( 71 ) mounted on the rear bipod ( 3 ), a rotating element ( 72 ) pivoted into the mounting base ( 71 ), and a collection belt ( 73 ) connected with one end of the rotating element ( 72 ), in which the other end of the rotating element ( 72 ) is connected with the linkage pull rod ( 61 ) in the first lock unit ( 6 ) through a second steel wire ( 721 ). 
     
     
         10 . The conveniently foldable high chair according to  claim 1 , wherein pulleys ( 21 ) are disposed on lower ends of the front bipod ( 2 ); and non-slip pads ( 32 ) are disposed on lower ends of the rear bipod ( 3 ).