Rocking chair frame with elastic device

Abstract

A rocking chair frame has a bottom end of a left side frame rotatably connected to a left lower frame, a bottom end of a right side frame rotatably connected to a right lower frame, and two ends of the foldable cross frame connected to the left side frame and the right side frame respectively. A left elastic device is slidably disposed on the left side frame in an up-and-down direction. A bottom end of a left supporting rod is pivotally connected to the left lower frame. A top end of the left supporting rod is connected to the left elastic device. A right elastic device is slidably disposed on the right side frame in the up-and-down direction. A bottom end of a right supporting rod is pivotally connected to the right lower frame. A top end of the right supporting rod is connected to the right elastic device.

What is claimed is: 
     
         1 . A rocking chair frame with an elastic device, comprising:
 a left side frame,   a right side frame,   a foldable cross frame,   a left lower frame,   a right lower frame,   a left supporting rod,   a right supporting rod,   a left elastic device, and   a right elastic device, wherein:
 a bottom end of the left side frame is rotatably connected to the left lower frame, 
 a bottom end of the right side frame is rotatably connected to the right lower frame, 
 two ends of the foldable cross frame are connected to the left side frame and the right side frame respectively, 
 the left elastic device is slidably disposed on the left side frame in an up-and-down direction, 
 a bottom end of the left supporting rod is pivotally connected to the left lower frame, 
 a top end of the left supporting rod is connected to the left elastic device, 
 the right elastic device is slidably disposed on the right side frame in the up-and-down direction, 
 a bottom end of the right supporting rod is pivotally connected to the right lower frame, and 
 a top end of the right supporting rod is connected to the right elastic device. 
   
     
     
         2 . The rocking chair frame with the elastic device according to  claim 1 , wherein:
 the left elastic device comprises a left housing and a left spring,   the left housing is slidably disposed on the left side frame in the up-and-down direction,   the left spring is located inside of the left housing,   a left fixed piece is provided,   the left fixed piece is located in the left housing and is fixedly connected to the left side frame,   two ends of the left spring respectively abut the left fixed piece and a bottom surface of the left housing,   the top end of the left supporting rod is pivotally connected to the left housing,   the right elastic device comprises a right housing and a right spring,   the right housing is slidably mounted on the right side frame in the up-and-down direction,   the right spring is located inside of the right housing,   a right fixed piece is provided,   the right fixed piece is located in the right housing and is fixedly connected to the right side frame,   two ends of the right spring respectively abut the right fixed piece and a bottom surface of the right housing, and   the top end of the right supporting rod is pivotally connected to the right housing.   
     
     
         3 . The rocking chair frame with the elastic device according to  claim 2 , wherein:
 the left side frame comprises a left backrest rod, a left oblique rod, a left front side rod, and a left armrest rod which are connected together in sequence,   a distal end of the left armrest rod is fixedly connected to the left backrest rod,   the left oblique rod is pivotally connected to the left lower frame,   the right side frame comprises a right backrest rod, a right oblique rod, a right front side rod, and a right armrest rod which are connected together in sequence,   a distal end of the right armrest rod is fixedly connected to the right backrest rod, and   the right oblique rod is pivotally connected to the right lower frame.   
     
     
         4 . The rocking chair frame with the elastic device according to  claim 3 , wherein:
 the foldable cross frame comprises a first folding frame and a second folding frame which are pivotally connected to each other,   the foldable cross frame further comprises two first connecting rods,   first ends of the two first connecting rods are respectively pivotally connected to a left front end of the first folding frame and a left rear end of the first folding frame,   second ends of the two first connecting rods are respectively pivotally connected to the left front side rod and the left backrest rod,   the foldable cross frame further comprises two second connecting rods,   first ends of two second connecting rods are pivotally connected to a right front end of the second folding frame and a right rear end of the second folding frame respectively, and   second ends of the two second connecting rods are respectively connected to the right front side rod and the right backrest rod.   
     
     
         5 . The rocking chair frame with the elastic device according to  claim 4 , wherein:
 the left elastic device is located below one of the two first connecting rods that is connected to the left backrest rod, and   the right elastic device is located below one of the two second connecting rods that is connected to the right backrest rod.   
     
     
         6 . The rocking chair frame with the elastic device according to  claim 5 , wherein:
 the left housing comprises a left position-providing groove arranged vertically and having a top opening,   the one of the two first connecting rods that is connected to the left backrest rod is configured to move in the left position-providing groove in the up-and-down direction,   the right housing comprises a right position-providing groove arranged vertically and having a second top opening, and   the one of the two second connecting rods that is connected to the right backrest rod is configured to move in the right position-providing groove in the up-and-down direction.   
     
     
         7 . The rocking chair frame with the elastic device according to  claim 3 , wherein:
 a bottom end of the left oblique rod is disposed with a first left connecting piece,   the left lower frame is disposed with a second left connecting piece corresponding to the first left connecting piece,   a left rotation shaft is provided, which enables the first left connecting piece and the second left connecting piece to be rotatably matched with each other,   a bottom end of the right oblique rod is disposed with a first right connecting piece,   the right lower frame is disposed with a second right connecting piece corresponding to the first right connecting piece, and   a right rotation shaft is provided, which enables the first right connecting piece and the second right connecting piece to be rotatably matched with each other.   
     
     
         8 . The rocking chair frame with the elastic device according to  claim 3 , wherein:
 a left foot pad is disposed on a bottom of a front end of the left oblique rod,   a right foot pad is disposed on a bottom of a front end of the right oblique rod, and   each of the left foot pad and the right foot pad is flush with a bottom surface of the left lower frame and a bottom surface of the right lower frame.