Reinforcing structure for supporting middle folding position of bed frame and bed frame

Abstract

The bed frame includes a bed frame body, two frames, and a supporting leg connected to the middle folding position of the bed frame body. The supporting leg is configured to be in an unfolded or folded state. The reinforcing structure includes a sliding sleeve sleeved on the supporting leg and pivotally connected to a connecting rod pivotally connected to a respective one of the two frames. The respective one of the two frames, the connecting rod, and the supporting leg form a triangular supporting structure in the unfolded state. The connecting rod is operatively coupled to the supporting leg to enable the sliding sleeve to have a certain amount of displacement along a length direction of the supporting leg. The reinforcing structure includes a locking structure disposed between the supporting leg and the sliding sleeve to enable the sliding sleeve to be locked in the unfolded state.

What is claimed is: 
     
         1 . A reinforcing structure for supporting a middle folding position of a bed frame, wherein:
 the bed frame comprises a bed frame body, two frames, and a supporting leg connected to the middle folding position of the bed frame body,   the supporting leg is configured to be in an unfolded state or a folded state relative to the two frames,   the reinforcing structure comprises a sliding sleeve sleeved on the supporting leg and pivotally connected to one or more connecting rods,   one of:
 the one or more connecting rods are all pivotally connected to a same one of the two frames, or 
 the one or more connecting rods are two connecting rods respectively pivotally connected to different ones of the two frames, 
   the respective one of the two frames, the one or more connecting rods, and the supporting leg form a triangular supporting structure in the unfolded state,   the one or more connecting rods are configured to be operatively coupled to the supporting leg to enable the sliding sleeve to move along a length direction of the supporting leg, and   the reinforcing structure comprises a locking structure disposed between the supporting leg and the sliding sleeve to enable the sliding sleeve to be locked in the unfolded state.   
     
     
         2 . The reinforcing structure for supporting the middle folding position of the bed frame according to  claim 1 , wherein:
 the locking structure comprises a locking core disposed on the supporting leg, a locking hole located on the sliding sleeve, and an unlocking member, and   the locking core is configured to be deformed to be locked to or unlocked from the locking hole.   
     
     
         3 . The reinforcing structure for supporting the middle folding position of the bed frame according to  claim 2 , wherein:
 the unlocking member is an unlocking button disposed on the sliding sleeve and configured to correspond to the locking hole,   the sliding sleeve is configured to slide to correspond to the locking hole during an unfolding process to enable the locking core to be locked to the locking hole to define a locking connection, and   the locking core is configured to be retracted by the unlocking button so as to be separated from the locking hole to define an unlocking connection.   
     
     
         4 . The reinforcing structure for supporting the middle folding position of the bed frame according to  claim 3 , wherein:
 the locking core is a spring piece, which is V-shaped or U-shaped, having an elastic spherical head configured to define the locking connection with the locking hole.   
     
     
         5 . The reinforcing structure for supporting the middle folding position of the bed frame according to  claim 1 , wherein:
 the two frames of the bed frame are divided into a left frame and a right frame respectively disposed on two sides of the middle folding position of the bed frame body in a left-and-right direction,   the one or more connecting rods are the two connecting rods,   the sliding sleeve is pivotally connected to the two connecting rods, and   the two connecting rods are respectively connected to the left frame and the right frame.   
     
     
         6 . The reinforcing structure for supporting the middle folding position of the bed frame according to  claim 5 , wherein:
 the left frame and the right frame are pivotally connected to a connecting piece,   one of the left frame or the right frame is configured to be rotated around the connecting piece and folded relative to the other one of the left frame or the right frame, and   the supporting leg is fixedly connected to a middle position of the connecting piece to be rotated and folded synchronously with the connecting piece.   
     
     
         7 . A bed frame, comprising the reinforcing structure for supporting the middle folding position of the bed frame according  claim 1 , wherein:
 the bed frame comprises the reinforcing structure and a second one of the reinforcing structure respectively disposed on the supporting leg and a second one of the supporting leg located on two sides of the middle folding position of the bed frame body in a front-and-rear direction.   
     
     
         8 . The bed frame according to  claim 7 , wherein:
 the supporting leg and the second one of the supporting leg are connected together through a lateral rod, and   the sliding sleeve comprises a position-providing groove for receiving the lateral rod.   
     
     
         9 . The bed frame according to  claim 8 , wherein:
 the position-providing groove is a U-shaped groove,   an opening of the U-shaped groove faces the lateral rod, and   the position-providing groove and the lateral rod are in a buckle connection when the sliding sleeve slides to be locked in the unfolded state.   
     
     
         10 . The bed frame according to  claim 7 , wherein:
 unfolding of the bed frame is configured to enable the supporting leg to be unfolded to drive the sliding sleeve through the one or more connecting rods to slide to enable the sliding sleeve to be locked by the locking structure, so as to enable the supporting leg to be maintained in the unfolded state.   
     
     
         11 . The bed frame according to  claim 8 , wherein:
 unfolding of the bed frame is configured to enable the supporting leg to be unfolded to drive the sliding sleeve through the connecting rod to slide to enable the sliding sleeve to be locked by the locking structure, so as to enable the supporting leg to be maintained in the unfolded state.