Baby High Chair

Abstract

A high chair includes a front support frame ( 31 ), a rear support frame ( 32 ) pivotally connected with the front support frame, an upper support frame ( 12 ) having a first end pivotally connected with the front support frame, and at least one locking device ( 2 ) mounted on a second end of the upper support frame and detachably locked onto the rear support frame to releasably lock the upper support frame on the rear support frame. Thus, the high chair can be folded completely when not in use so as to largely decrease the space of storage and transportation. In addition, the high chair is folded or expanded easily and quickly, thereby facilitating the user folding or expanding the high chair.

1 . A high chair, comprising:
 a front support frame ( 31 );   a rear support frame ( 32 ) pivotally connected with the front support frame;   an upper support frame ( 12 ) having a first end pivotally connected with the front support frame;   at least one locking device ( 2 ) mounted on a second end of the upper support frame and detachably locked onto the rear support frame to releasably lock the upper support frame on the rear support frame.   
     
     
         2 . The high chair of  claim 1 , wherein the locking device includes:
 a mounting block ( 21 ) secured on the second end of the upper support frame and having a first end provided with a mounting recess ( 211 ) detachably mounted on the rear support frame;   a stop piece ( 24 ) mounted on a second end of the mounting block;   a control knob ( 22 ) movably mounted on the mounting block;   a locking bolt ( 222 ) secured on the control knob and movable to press the rear support frame so as to releasably lock the mounting block on the rear support frame;   an elastic member ( 23 ) biased between the stop piece and the control knob to push the control knob and the locking bolt toward the rear support frame.   
     
     
         3 . The high chair of  claim 2 , wherein
 the mounting block of the locking device has an inner portion provided with a slideway ( 215 );   the control knob of the locking device is slidable in the slideway of the mounting block.   
     
     
         4 . The high chair of  claim 2 , wherein
 the rear support frame has an upper portion provided with at least one locking hole ( 321 );   the locking bolt of the locking device is inserted into and detachably locked in the locking hole of the rear support frame.   
     
     
         5 . The high chair of  claim 2 , wherein
 the locking bolt of the locking device is secured on a first side of the control knob to move in concert with the control knob;   the control knob of the locking device has a second side provided with a receiving chamber ( 223 );   the elastic member of the locking device is mounted in the receiving chamber of the control knob.   
     
     
         6 . The high chair of  claim 2 , wherein the control knob of the locking device has a face provided with a mounting groove ( 221 ) for mounting the locking bolt. 
     
     
         7 . The high chair of  claim 2 , wherein the stop piece of the locking device is secured on the mounting block by a locking screw ( 214 ). 
     
     
         8 . The high chair of  claim 7 , wherein
 the second end of the mounting block has a top provided with a fixing hole ( 213 );   the stop piece of the locking device has a top provided with a screw bore ( 241 );   the locking screw extends through the fixing hole of the mounting block and is screwed into the screw bore of the stop piece to fix the stop piece to the mounting block.   
     
     
         9 . The high chair of  claim 2 , wherein
 the upper support frame has a bottom provided with a socket ( 120 );   the first end of the mounting block has a top provided with a plug ( 212 ) inserted into the socket of the upper support frame and a receiving space ( 217 ) to receive the socket of the upper support frame.   
     
     
         10 . The high chair of  claim 3 , wherein the slideway of the mounting block is located between the stop piece and the mounting recess. 
     
     
         11 . The high chair of  claim 5 , wherein
 the slideway of the mounting block has a sidewall provided with a through hole connected to the mounting recess;   the locking bolt of the locking device has a first end secured on the first side of the control knob and a second end extending through the through hole into the mounting recess of the mounting block.   
     
     
         12 . The high chair of  claim 2 , wherein the control knob of the locking device has a bottom provided with an upright pull handle protruding outwardly the mounting block to facilitate a user pushing the control knob. 
     
     
         13 . The high chair of  claim 3 , wherein the locking bolt of the locking device is movable in the slideway of the mounting block. 
     
     
         14 . The high chair of  claim 5 , wherein the elastic member of the locking device is biased between the stop piece and the second side of the control knob. 
     
     
         15 . The high chair of  claim 3 , wherein the stop piece of the locking device is received in the slideway of the mounting block. 
     
     
         16 . The high chair of  claim 2 , wherein the first end of the mounting block has a bottom formed with the mounting recess. 
     
     
         17 . The high chair of  claim 2 , further comprising:
 a seat frame pivotally connected with the front support frame.   
     
     
         18 . The high chair of  claim 17 , wherein the seat frame has a first end pivotally connected with the front support frame and a second end provided with a footrest. 
     
     
         19 . The high chair of  claim 1 , further comprising:
 a placement member mounted on and located above the upper support frame.   
     
     
         20 . The high chair of  claim 17 , wherein
 the rear support frame has a mediate portion pivotally connected with a mediate portion of the front support frame;   the upper support frame is located above the seat frame;   the first end of the upper support frame is pivotally connected with an upper portion of the front support frame.