An electric mobility vehicle including a front-wheel-side body, a rear-wheel-side body, a seat on which a passenger sits in an in-use state, and a linking mechanism that links the front-wheel-side body with the rear-wheel-side body so as to be pivotable about a pivoting axis extending in a vehicle width direction. The electric mobility vehicle is foldable by pivoting the front-wheel-side body and the rear-wheel-side body relative to each other in a vehicle front-to-rear direction. The electric mobility vehicle includes a footrest provided in the front-wheel-side body, a front-end roller or a front-end caster provided in the front-wheel-side body and disposed at a vehicle front side relative to a front end of the front wheel in the in-use state, and comes into contact with the floor surface in the folded state to make the electric mobility vehicle stand alone.

An adjustable backrest is adapted for a chair frame and includes a first pivoting component, a second pivoting component, a backrest sliding assembly and a backrest connecting component. The second pivoting component is pivoted to the first pivoting component. The backrest sliding assembly is slidably disposed on the first pivoting component. The backrest connecting component is disposed between the first pivoting component and the second pivoting component. A first end of the backrest connecting component is pivoted to the backrest sliding assembly. A second end of the backrest connecting component is pivoted to the second pivoting component. The backrest sliding assembly drives the second pivoting component to pivot relative to the first pivoting component by the backrest connecting component when the at least one backrest sliding assembly slides relative to the first pivoting component, so as to support a user's back portion at different angles.

A folding electric wheelchair with elevating seat that provides the user an electronic driving system powered by two lithium-ion batteries that is sealed to be weatherproof, able to drive over different terrain types and slope grades on any given day whether it's raining or sunny, lightweight, and portable for transportation, travel-friendly, compact in overall size when in the folded position to fit into a small space for storage. An ergonomically contoured seat with an actuator that can raise and lower the seat base overall height. A bump dampening and terrain vibration system with the supporting frame pieces (34), (42), and (50) having an oval shape. The manner of how the embodiment operates to fold and unfold consists of specific hinge joint embodiments including: (46), (48), (58) and (64).

A motorized tilting mechanism for a reclining chair allows the chair be placed in a zero gravity position. A base frame comprising 2 sub-frames pivot in relation to each other to provide simple tilting mechanism.

A folding electric wheelchair that provides the user an electronic driving system powered by two lithium-ion batteries that is sealed to be weatherproof, able to drive over different terrain types and slope grades on any given day whether it's raining or sunny, lightweight and portable for transportation, travel-friendly, compact in overall size when in the folded position to fit into a small space for storage. An ergonomically contoured seating that includes a bump dampening and terrain vibration system with the supporting frame pieces (34), (42), and (50) having an oval shape. The manner of how the embodiment operates to fold and unfold consists of eight specific hinge joint embodiments including: (30), (32), (38), (40), (46), (48), (58) and (64).

A motorized tilting mechanism for a reclining chair allows the chair be placed in a zero gravity position. A base frame comprising 2 sub-frames pivot in relation to each other to provide simple tilting mechanism.

An adjustable backrest is adapted for a chair frame and includes a first pivoting component, a second pivoting component, a backrest sliding assembly and a backrest connecting component. The second pivoting component is pivoted to the first pivoting component. The backrest sliding assembly is slidably disposed on the first pivoting component. The backrest connecting component is disposed between the first pivoting component and the second pivoting component. A first end of the backrest connecting component is pivoted to the backrest sliding assembly. A second end of the backrest connecting component is pivoted to the second pivoting component. The backrest sliding assembly drives the second pivoting component to pivot relative to the first pivoting component by the backrest connecting component when the at least one backrest sliding assembly slides relative to the first pivoting component, so as to support a user's back portion at different angles.

An electric mobility vehicle including a front-wheel-side body, a rear-wheel-side body, a seat on which a passenger sits in an in-use state, and a linking mechanism that links the front-wheel-side body with the rear-wheel-side body so as to be pivotable about a pivoting axis extending in a vehicle width direction. The electric mobility vehicle is foldable by pivoting the front-wheel-side body and the rear-wheel-side body relative to each other in a vehicle front-to-rear direction. The electric mobility vehicle includes a footrest provided in the front-wheel-side body, a front-end roller or a front-end caster provided in the front-wheel-side body and disposed at a vehicle front side relative to a front end of the front wheel in the in-use state, and comes into contact with the floor surface in the folded state to make the electric mobility vehicle stand alone.

A manual electric folding scooter belongs to the technical field of medical instruments comprises a folding assembly, a push rod shaft and a rotating spindle arranged in turn, one end of an electric push rod is fixed in the push rod shaft, and the other end of the electric push rod is driven by a motor; the folding assembly comprises a hook shaft with both ends welded to a fixing plate, two reinforcing rods are symmetrically welded in the middle of the hook shaft, and the free ends of the reinforcing rods after passing through the symmetrically arranged fixing plate are arranged in sliding slots of frame fixing pieces on corresponding sides.

A manual electric folding scooter belongs to the technical field of medical instruments comprises a folding assembly, a push rod shaft and a rotating spindle arranged in turn, one end of an electric push rod is fixed in the push rod shaft, and the other end of the electric push rod is driven by a motor; the folding assembly comprises a hook shaft with both ends welded to a fixing plate, two reinforcing rods are symmetrically welded in the middle of the hook shaft, and the free ends of the reinforcing rods after passing through the symmetrically arranged fixing plate are arranged in sliding slots of frame fixing pieces on corresponding sides.