Intelligent And Multifunctional Sofa Bed

Abstract

The invention discloses a sofa bed, comprising: a sofa seat including a bottom frame; a movable frame installed on the bottom frame to reciprocate; a driving device to drive the movable frame to reciprocate; a folding frame rotatably mounted on the movable frame; a first transmission device to drive the rotation of the folding frame, the first transmission device is used to drive the folding frame to be folded to form a rest sofa in a first position; the first transmission device is used to drive the folding frame to unfold to form a rest bed in a second position. The first transmission device drives the folding frame to perform automatic folding, the problem of inconvenient operation is solved. The driving device drives the movable frame to generate high-frequency reciprocating motion, the user can turn on a vibration mode to relax, enriching the functions of the sofa bed and improves the user experience.

What is claimed is: 
     
         1 . An intelligent and multifunctional sofa bed, comprising:
 a sofa seat, the sofa seat includes a bottom frame;   a movable frame, the movable frame is installed on the bottom frame for reciprocating motion;   a driving device, the driving device is installed on the bottom frame and used to drive the movable frame to reciprocate;   a folding frame, the folding frame is rotatably mounted on the movable frame;   a first transmission device, the first transmission device is installed on the movable frame and used to drive the rotation of the folding frame, the first transmission device is used to drive the folding frame to be folded on the movable frame to form a rest sofa in a first position; the first transmission device is used to drive the folding frame to unfold beyond the movable frame to form a rest bed in a second position.   
     
     
         2 . The sofa bed as defined in  claim 1 , wherein further includes a weight sensor for triggering the folding frame to fold, the weight sensor is signally connected to the first transmission device via a control unit; when the weight sensor recognizes that the weight is below a set value, the first transmission device drives the folding frame to automatically fold on the movable frame. 
     
     
         3 . The sofa bed as defined in  claim 2 , wherein further includes two limit switches for controlling the rotation path of the folding frame, the limit switch is signally connected to the first transmission device via the control unit; when the folding frame rotates to trigger one of the limit switches, the first transmission device stops working so that the folding frame is folded; when the folding frame rotates to trigger the other limit switch, the first transmission device stops working so that the unfolding of the folding frame is completed. 
     
     
         4 . The sofa bed as defined in  claim 1 , wherein the folding frame includes a first folding frame, a second folding frame and a third folding frame, one end of the first folding frame is pivotally connected to the movable frame, one end of the second folding frame is pivotally connected to the other end of the first folding frame, one end of the third folding frame is pivotally connected to the other end of the second folding frame; in the first position, the first transmission device drives the first folding frame together with the second folding frame and the third folding frame to fold until the first folding frame and the second folding frame are folded and attached together to form a backrest of the rest sofa, the third folding frame is translated onto the movable frame to form a cushion of the rest sofa; in the second position, the first transmission device drives the first folding frame together with the second folding frame and the third folding frame to unfold, the first folding frame, the second folding frame and the third folding frame are co-linear and coplanar to form a rest bed. 
     
     
         5 . The sofa bed as defined in  claim 4 , wherein a first rotating shaft is rotatably installed on the movable frame, one end of the first folding frame is fixedly installed on the first rotating shaft; the first transmission device includes a first motor, the first motor drives the first shaft to rotate. 
     
     
         6 . The sofa bed as defined in  claim 4 , wherein a roller piece is provided at one end of the third folding frame away from the second folding frame, the roller piece is rolled and held on a bearing surface of the bottom frame. 
     
     
         7 . The sofa bed as defined in  claim 1 , wherein the bottom frame is connected with the movable frame via a limiting element, the limiting element includes a first fixed base, a first movable base and a roller assembly; the first fixed base is installed on the bottom frame, the first movable base is movably arranged relative to the first fixed base and is used for installing the movable frame, the roller assembly is rolled between the first fixed base and the first movable base. 
     
     
         8 . The sofa bed as defined in  claim 1 , wherein the driving device includes a second motor installed on the bottom frame, a second rotating shaft rotatably installed on the bottom frame, a first transmission section, and a second transmission section; the second motor drives the second rotating shaft to rotate, the second rotating shaft is provided with an eccentric shaft; one end of the first transmission section is provided with a first shaft hole, the eccentric shaft is adapted to be installed in the first shaft hole; the other end of the first transmission section is connected to one end of the second transmission section, the other end of the second transmission section is connected to the movable frame. 
     
     
         9 . The sofa bed as defined in  claim 8 , wherein the driving device further includes a first transmission shaft rotatably mounted on the bottom frame; one end of the first transmission shaft is provided with a first transmission wheel, the other end is provided with a second transmission wheel; the output end of the second motor is provided with a first driving wheel, the first driving wheel is connected with the first transmission wheel via a belt; one end of the second rotating shaft is provided with a third transmission wheel, the third transmission wheel is connected with the second transmission wheel via a belt. 
     
     
         10 . The sofa bed as defined in  claim 1 , wherein the left and right sides of the bottom frame are respectively provided with a multi-functional portion, the upper end of the multi-functional portion protrudes above the bottom frame, the multi-functional portion forms an armrest of the rest sofa or a guardrail of the rest bed.