Folding bed with stretchable supporting legs

Abstract

A folding bed with stretchable supporting legs is provided, which belongs to the technical field of folding beds. The folding bed includes a folding bed plate and bed leg assemblies. Two opposite sides of the folding bed plate are hinged with expansion bed plates. The bed leg assemblies are arranged at two ends of a bottom of the folding bed plate, and adjustment rods are slidably plugged into the two ends. One end of each adjustment rod away from a square tube is fixedly provided with a supporting leg through a bolt. A U-shaped elastic sheet is arranged inside each adjustment rod. Fixed ends of the U-shaped elastic sheets are fixedly connected to inner walls of the adjustment rods. Clamping heads are formed at movable ends of the U-shaped elastic sheets. A plurality of adjustment holes are provided in one side of the square tube.

What is claimed is: 
     
         1 . A folding bed with stretchable supporting legs, comprising a folding bed plate and bed leg assemblies ( 700 ), wherein two opposite sides of the folding bed plate are hinged with expansion bed plates ( 600 ); the bed leg assemblies ( 700 ) are arranged at two ends of a bottom of the folding bed plate;
 each bed leg assembly ( 700 ) comprises a square tube ( 701 ); adjustment rods ( 703 ) are slidably plugged into two ends of the square tube ( 701 ); a supporting leg ( 704 ) is fixedly mounted at one end of each adjustment rod ( 703 ) away from the square tube ( 701 ) through a bolt; a U-shaped elastic sheet ( 705 ) is arranged inside each adjustment rod ( 703 ); fixed ends of the U-shaped elastic sheets ( 705 ) are fixedly connected to inner walls of the adjustment rods ( 703 ); clamping heads ( 706 ) are formed at movable ends of the U-shaped elastic sheets ( 705 ); a plurality of adjustment holes ( 7011 ) are provided in one side of each square tube ( 701 ); and the clamping heads ( 706 ) are able to be clamped into the adjustment holes ( 7011 ).   
     
     
         2 . The folding bed with the stretchable supporting legs according to  claim 1 , wherein the folding bed plate comprises a first hip bed plate ( 100 ), a second hip bed plate ( 101 ), a leg bed plate ( 200 ), a bed-end bed plate ( 300 ), and a head bed plate ( 400 ); one side of the first hip bed plate ( 100 ) is hinged to the head bed plate ( 400 ), and another side of the first hip bed plate ( 100 ) is hinged to the second hip bed plate ( 101 ); one side of the second hip bed plate ( 101 ) away from the first hip bed plate ( 100 ) is hinged to the leg bed plate ( 200 ); and one side of the leg bed plate ( 200 ) away from the second hip bed plate ( 101 ) is hinged to the bed-end bed plate ( 300 ). 
     
     
         3 . The folding bed with the stretchable supporting legs according to  claim 1 , wherein the folding bed plate further comprises a first electric push rod ( 500 ) and a second electric push rod ( 501 ); one end of the first electric push rod ( 500 ) is hinged to the head bed plate ( 400 ); an end portion of a piston rod of the first electric push rod ( 500 ) is hinged to the first hip bed plate ( 100 ); one end of the second electric push rod ( 501 ) is hinged to the leg bed plate ( 200 ); and a piston rod of the second electric push rod ( 501 ) is hinged to the second hip bed plate ( 101 ). 
     
     
         4 . The folding bed with the stretchable supporting legs according to  claim 3 , wherein each bed leg assembly ( 700 ) further comprises a connecting rod ( 702 ); one end of the connecting rod ( 702 ) is fixedly connected to the square tube ( 701 ); one end, away from the square tube ( 701 ), of the connecting rod ( 702 ) in one bed leg assembly ( 700 ) is fixedly connected to the first hip bed plate ( 100 ); and one end, away from the square tube ( 701 ), of the connecting rod ( 702 ) in the other bed leg assembly ( 700 ) is fixedly connected to the second hip bed plate ( 101 ). 
     
     
         5 . The folding bed with the stretchable supporting legs according to  claim 4 , wherein a connecting plate ( 707 ) is hinged to the connecting rod ( 702 ) fixedly connected to the second hip bed plate ( 101 ), and another end of the connecting plate ( 707 ) is hinged to the bed-end bed plate ( 300 ). 
     
     
         6 . The folding bed with the stretchable supporting legs according to  claim 5 , wherein two connecting rods ( 702 ) are arranged in each bed leg assembly ( 700 ), and the two connecting rods ( 702 ) are fixedly connected to two ends of the square tube ( 701 ).