Remacro Technology Co., Ltd.

The automatically retractable movable seat frame includes at least one stretching device, including a linkage mechanism, including a driving elastic member, a rotating rack, and a linkage rack, the driving elastic member being assembled between the rotating rack and the linkage rack; a leg mechanism, hinged to a front end of the linkage rack, a drag link being hinged between the rotating rack and the leg mechanism; a seat mechanism, hinged to a rear end of the leg mechanism; and a rotating mechanism, connected to the rotating rack, configured to drive the rotating rack to rotate, so that the stretching device is switched between a sitting position and a relaxing position, in which the driving elastic member stretches and retracts with the rotation of the rotating rack, and the rotating rack is driven to rotate, so that the leg mechanism is folded.

An electromechanical stretching apparatus of a convertible sofa consisting of a mechanical stretching apparatus and an electric actuator, the mechanical stretching apparatus provided with an electrically-driven connecting rod, where the electric actuator consists of a motor, a motor connecting tube, a motor movable slider, and a motor head fixing part, the motor adopted is a motor with a guide rail, the motor movable slider is installed on the guide rail of the motor, the motor head is rotationally connected through a second rotor shaft to the motor head fixing part fastened on the electrically-driven connecting rod, the motor connecting tube is connected to the motor movable slider through a first rotor shaft and the motor connecting tube is fastened on the mechanical stretching apparatus. The motor connecting tube is fastened on a linkage part of the mechanical stretching apparatus. The first and second rotor shaft are both a bolt.

The invention is an electromechanical stretching apparatus of a convertible sofa, which consisting of a mechanical stretching apparatus and an electric actuator, the mechanical stretching apparatus being provided with an electrically-driven connecting rod, wherein, the electric actuator consists of a motor, a motor connecting tube, a motor movable slider, and a motor head fixing part, the motor adopted is a motor with a guide rail, the motor movable slider is installed on the guide rail of the motor, the motor head is rotationally connected through a second rotor shaft to the motor head fixing part fastened on the electrically-driven connecting rod, the motor connecting tube is connected to the motor movable slider through a first rotor shaft and the motor connecting tube is fastened on the mechanical stretching apparatus. The said motor connecting tube is fastened on a linkage part of the mechanical stretching apparatus. The said first rotor shaft and the second rotor shaft are both a bolt. By changing the electronic driving device, the invention increases automaticity and comfort of the convertible sofa, and improves installation, removal, maintenance, and operation efficiency of an electric actuator of the convertible sofa.

A contractible sofa linkage device includes a linkage assembly, a seat frame mount hinged above the linkage assembly, and a leg assembly hinged to a front end of the seat frame mount; an inner side wall of the seat frame mount is provided with a mounting platform, wherein a height of the mounting platform is lower than an upper edge of the seat frame mount, and an angled plane where the mounting platform is positioned is a seat frame mounting surface; the leg assembly includes a footrest link assembly and a footrest member, in which the footrest link assembly is hinged to the seat frame mount, the footrest member includes a footrest plate mounting surface used to mount a footrest plate, and the footrest plate mounting surface is retracted below the seat frame mount when the footrest link assembly drives the footrest member to be retracted to a limit position.

A device for retracting seat leg at angle, including a leg assembly hinged to a front end of a seat frame mount, both the footrest driving link and the footrest driven link of the leg assembly are hinged to a front end of the seat frame mount respectively, an end of the first footrest link is hinged to the footrest driving link, an opposite end thereof is hinged to an end of the footrest member, an end of the second footrest link is hinged to the footrest driven link, an opposite end thereof is hinged to a middle of the footrest member including a footrest plate mounting surface used to mount a footrest plate, and the footrest plate mounting surface is retracted below the seat frame mount and is oblique with respect to a horizontal plane when the leg assembly is retracted to a limit position.

A mechanically stretchable apparatus for a sofa and a sofa thereof are provided. The mechanically stretchable apparatus includes: a seat component, a linkage component, a back component and a leg component. The seat component further includes a base, a first rotating part, the second rotating part, and the seat linkage structure placed between the first and second rotating parts. The seat linkage structure includes a back linkage with a seat connection point, a transmission connection point, and a back connection point. The seat connection point is connected to the first rotating part. The back connection point is connected to the back component. The back component and the leg component are respectively connected to the linkage component, and the linkage component is connected to the seat linkage structure.

Disclosed is a folding bed, comprising a connecting rod assembly, a folding bed frame, a thigh board, a shank board and a first driving device, thigh board is rotatably connected to shank board; connecting rod assembly comprises two first connecting rods, two second connecting rods and a first linking rod, one end of the first connecting rod is slidably connected to shank board, and another end is rotatably connected to the folding bed frame; one end of the second connecting rod is rotatably connected to the first connecting rod, another end of the second connecting rod is used for driving thigh board of the folding bed to rotate, and the two ends of first linking rod are fixedly connected to the two first connecting rods, respectively; the first driving device is used for pushing the first linking rod to drive shank board and thigh board to move.