Abstract: A compressible sectional sofa includes seat cushions, armrests, and covers. The seat cushions and the armrests are made of a hard material and of a soft material covering the hard material. The hard material and the soft material are both made of a compressible material. The seat cushions and the armrests are disposed separately. The covers include a seat cushion cover, an armrest cover, a first zipper, and a second zipper. The seat cushion cover includes a top surface, an armrest side surface, and a headrest side surface. When transportation is required, the seat cushions and the armrests can be compressed via a mechanical device, thereby squeezing the air out of the hard material and out of the soft material, thus reducing the volume of the seat cushions and armrests, and further reducing packaging volume and facilitating transportation.

Abstract: A full-sponge compressible sofa includes a sponge mounting seat and at least one sponge sofa seat provided on the sponge mounting seat. The sponge mounting seat includes a base and two armrests symmetrically arranged on the base. Each armrest includes an armrest main body and a limiting flange provided on one side of the armrest main body. Each sponge sofa seat includes a seat cushion and a backrest provided on one end of the seat cushion. The side of either one of the armrests provided with the limiting flange faces the other armrest. When the sponge sofa seat is mounted on the sponge mounting seat, the limiting flange of each armrest abuts against the seat cushion of one sponge sofa seat, so as to limit the position of the sponge sofa seat on the sponge mounting seat.

Abstract: A foldable electric bed frame that is relatively thinner in a folded state and easy to pack and transport includes a bed frame body, subframes, driving motors, bed boards, and detachable bed legs. The driving motors and the bed boards are connected to the bed frame body and the subframes. Flexible covering members are further comprised. The flexible covering members are arranged along the edges of the periphery of the bottom of the bed boards and are connected to the bottom of the bed boards through velcro or other detachable connecting members; and when the bed frame body is in a folded state, the flexible covering members are located between the stacked bed boards. The flexible covering members are arranged around the bed boards, and when the bed frame is folded, the flexible covering members are used as a buffering measure.

Abstract: The ultra-thin foldable bed frame includes a front frame and a rear frame that are rotatably connected to each other, a front push rod assembly and a rear push rod assembly respectively disposed on the front frame and the rear frame, a front bed board assembly and a rear bed board assembly respectively laid on the front push rod assembly and the rear push rod assembly, a front frame driving motor, and a rear frame driving motor. The front push rod assembly and the rear push rod assembly are respectively connected to the front frame driving motor and the rear frame driving motor. When the driving motors are at the initial position, the front frame, the rear frame, the push rod assemblies, and the driving motors are all fall within the range of the thicknesses of the front frame and the rear frame.

Abstract: A flexible polyurethane foam material with strong support and high elasticity is made by foaming the following raw materials by weight: 80-120 parts of lignin-based block copolymer molecular-level combined polyether; 45-65 parts of isocyanate; 0.5-5 parts of foaming catalyst; 1-10 parts of water; and 1-3 parts of foam stabilizer; the lignin-based block copolymer molecular-level combined polyether is based on lignosulfonate, molecular chain of lignosulfonate is cut and embedded by using solvation effect of polyether polyol to form a molecular-level combined polyether that is polymerized and formed by aromatic polymer fragments of lignosulfonate and aliphatic polymer fragments of polyether polyol. The foaming catalyst can be a foaming catalyst commonly used in the technical field.

Abstract: A lignin-based block copolymer molecular-level combined polyether is based on lignosulfonate, a molecular chain of lignosulfonate is cut and embedded by using solvation effect of polyether polyol to form a molecular-level combined polyether that is polymerized and formed by aromatic polymer fragments of lignosulfonate and aliphatic polymer fragments of polyether polyol. The present invention uses a type of molecular mixing technology with a special structure to re-edit and splice the lignin molecular fragments of the hard segment on the microscopic level with the polymer polyols of the soft segment on the macroscopic level, to obtain a molecular-level combined polyether by a method of block copolymerization. Such a molecular-level combined polyether has dual characteristics of strong support and softness, which perfectly solves the problem how to balance strong support and softness of flexible polyurethane foam materials.