103 results about "Motorized wheel chair" patented technology

A motorized wheel-chair is equipped with one or more sensors for detecting obstacles. The detection method may be either radar or sonar (or both). An on-board computer processes these echoes and presents a visual or auditory display. With the benefit of these displays, the user issues voice commands (or exerts manual pressure) to maneuver appropriately the motorized wheelchair. One or more microphones pick up the sounds of the user's voice and transmit them to a computer. The computer decodes the maneuvering commands by speech-recognition techniques and transmits these commands to the wheelchair to effect the desired motion. In addition to speech recognition for decoding commands, voice (speaker) recognition is employed to determine authorized users.

A wheel bracket mechanism for an electric wheelchair equipped with auxiliary wheels, which comprises a frame, a pair of driver wheel brackets, four pedestal assemblies, a pair of caster brackets, a pair of oscillating assembly and a pair of anti-tipping brackets. The frame is provide with a pair of castor brackets at the front end and a pair of anti-tipping brackets at the rear end thereof, a pair of driver wheel brackets are secured to the frame with a front end stretching ahead of it and located between the castor brackets and the anti-tipping brackets, and between the castor brackets and the driver wheel bracket disposed an oscillating assemblies, four pedestal assemblies equipped with cushioning blocks are disposed at both sides of the front and rear end of the frame respectively in pairs with located opposite to each other.

The invention discloses an omni-directional intelligent electric wheel chair, which comprises a chassis frame and a seat, wherein the two sides below the chassis frame are respectively hinged with an actuating arm of which the left and the right correspond; the actuating arm is connected with Mecanum wheels which can be used for forming a pair of front wheels and a pair of rear wheels; the two sides below the seat, the front part of the seat and the upper parts of the front wheels are respectively provided with an ultrasonic sensor; the outer sides of the Mecanum wheels are respectively provided with an infrared sensor; a handle of the seat is provided with a control box and an operating handle; the actuating arm is also provided with a drive control board; and a drive control board circuit is connected with a digital signal processor (DSP). Compared with the conventional two-wheeled rear-drive electric wheel chair, the omni-directional intelligent electric wheel chair provided by the invention has omni-directional moving abilities, such as lateral direction, slant direction and the like, and has larger movement flexibility; and environment around the wheel chair can be detected through the ultrasonic sensor and the infrared sensor, so as to provide a rider with information of a barrier which can hinder the wheel chair to move, realize that the rider can automatically avoid the barrier when driving the wheel chair or can brake the wheel chair, improve use safety of the wheel chair.

A wheel set structure of an electric wheelchair is disclosed to include a wheelchair frame, which defines a first steering direction and a second steering direction reversed to the first steering direction, at least one swinging mechanism pivotally mounted on the wheelchair frame each having a swinging member and a wheel holder, at least one transmission wheel assembly connected to the swinging member each having a motor and a driving wheel coupled to and rotatable by the motor, and at least one first wheel assembly mounted on the wheel holder each pivotally holding a wheel. When the at least one swinging member is biased relative to the at least one wheelchair frame, the at least one first wheel assembly is biased with the at least one swinging member so that the elevation of the wheel of each first wheel assembly and the elevation of the driving wheel of each transmission wheel assembly are relatively changed at a constant ratio.

The invention discloses a novel wheel-crawler compound electrically propelled wheelchair, which comprises first side plates, first crawler wheels, front support rods, front wheels, first pin shafts, a first rotating plate, pinions, front axles, gearwheels, transmission shafts, couplings, main crawler belts, second crawler wheels, secondary crawler belts, third crawler wheels, hollow shafts, a long shaft, motor bases, a bottom plate, fixing plates, rear wheels, rear axles, a second rotating plate, second pin shafts, rear support rods, driven shafts, second side plates, a first transverse plate, supports, a first rotating shaft, a first electric expansion link, a second electric expansion link, a second rotating shaft seat, a second rotating shaft, a chair, a third rotating shaft, a third rotating shaft seat, a fourth rotating shaft seat and a fifth rotating shaft seat. A wheel-type walking mode and a crawler walking mode are respectively adopted by the novel electric wheelchair with a function of going upstairs during a process of walking on the flat ground and a process of going upstairs. The switchover between the two walking modes can be controlled by a rider, and moreover, a switching mechanism is simple and practical and is convenient in operation.

The invention relates to a linked-control electric reclining wheelchair. The front end and the rear end of a base are connected with leg guard racks and a back frame respectively through rotary shafts. The back frame is connected with the leg guard racks through an armrest connecting bar mechanism movably connected to the base. A frame beam of the back frame is connected with a lower fixed beam at the rear end of the base through a linear motor controlled through a control mechanism. When the linear motor retracts, the back frame rotates down around the rotary shaft of the base, and the armrest connecting rod mechanism drives the leg guard racks to rotate up around the rotary shaft of the base. For a patient user, the linked-control electric reclining wheelchair can be controlled by the user for lying down, and accordingly psychological rehabilitation and confidence rebuilding are emphasized, and humane care is embodied. In addition, bedsore can be prevented, hip pressure is relieved, and proper lying can reduce spinal pressure in long-term sitting. Technically, simultaneous control of a back and a leg guard board by a single motor is achieved, mechanism complexity is reduced greatly, cost is reduced, and power is economized.

The invention relates to an angle controllable reclining and vertical electrical wheelchair with any sitting postures. A linear motor transmission module comprises a linear motor, a wheel frame and a sitting frame. The linear motor is connected between the wheel frame and the sitting frame. A sleeve of the linear motor is in transmission connected with a lower transverse rod of the wheel frame and a mandrill of the linear motor is in transmission connected with a middle transverse of the sitting frame. A servo motor transmission module comprises a servo motor, a reduction box, and a chain-chain wheel box, a self-locking mechanism installed in the servo motor, a leg rest and a backrest. The servo motor and the reduction box are fixed on the sitting frame and connected with a transmission shaft of the chain-chain wheel box close to the leg rest. One end of the transmission shaft of the chain-chain wheel box is connected with a rotating shaft of the leg rest and the rotating shaft of the leg rest is connected with a rotating shaft of the sitting frame. The other end of the transmission shaft of the chain-chain wheel box is connected with a rotating shaft of the backrest and the rotating shaft of the backrest is connected with the sitting frame through a bearing. With the adoption of the invention, the user can switch among the sitting position, the lying position and the standing position according to demand and the invention can be used for the user with moderate lower limb training according to demand.

The invention relates to a power wheelchair, comprising a seat part, a running mechanism and a control unit which is positioned between the seat part and the running mechanism. The running mechanism comprises a plurality of chair wheels to realize the displacement of the power wheelchair. The chair wheels are macnum wheels, each of which comprises a wheel body with a circle in the center and a plurality of rollers positioned at the periphery of the wheel body, the axes in the center of each roller and in the center of the wheel body form an acute angle; the running mechanism also comprises a plurality of driver motors corresponding to the macnum wheels respectively, the control unit is electrically connected with the driver motor, receives the operation signals of the wheelchair from the outside and converts the operation signals into command signals; the command signals are output to the driver motor; each macnum wheel is driven independently in a way that the control unit drives the motor. The power wheelchair can respectively drive a plurality of the macnum wheels independently in a way that the macnum wheels can change direction during the process of rotation, thus realizing omnibearing rotation.

A direction indicator system includes: an electromagnetic drive actuator that has a moving part that can slide back and forth, side to side, and diagonally; and a drive controlling unit that controls the sliding direction of the moving part, based on direction indicating information that is supplied from the outside.

The invention discloses a foldable electric wheelchair, which comprises an electric push rod, wherein the lower end of a backrest support frame is positioned at the lower side of the chair; the lower side of the chair is fixedly provided with a chair connecting rod; a main vehicle frame connecting rod is arranged at the lower side of the chair connecting rod; the chair connecting rod and the main vehicle frame connecting rod are both arranged in the forward and backward direction of the electric wheelchair; the back end of the chair connecting rod is hinged to the middle part of the backrest support frame; front wheels are fixed at the lower end of a front wheel fixing rod; back wheels are fixed at the back end of a back wheel fixing rod arranged in the forward and backward direction of the electric wheelchair; the front end of the chair connecting rod is hinged to the upper end of the front wheel fixing rod; the front end of the main vehicle frame connecting rod is hinged to the middle part of the front wheel fixing rod; the front end of the back wheel fixing rod is hinged to the front wheel fixing rod; the back end of the back wheel fixing rod is hinged to the back end of the main vehicle frame connecting rod; the upper end of the electric push rod is hinged and fixed with the chair connecting rod; the lower end of the electric push rod is hinged and fixed to the main vehicle frame connecting rod.

A vehicle, in particular electric wheelchair, having a chassis and a driver's seat which is fastened thereto and can be set in its inclination with respect to the chassis. The vehicle includes an inclination sensor which determines the angular position (α) of the seat surface of the driver's seat with respect to the horizontal (H), an adjusting device which is connected to the chassis and to the driver's seat, and a control and regulating device which is operatively connected to the inclination sensor and the adjusting device and via which the driver's seat can be pivoted by the adjusting device in such a manner that its seat surface is always situated essentially parallel to the horizontal (H).

A wheelchair has a chair, an electrical power device, a foot stand, and a control device. The chair has two arm rest frames, and each arm rest frame has a connection board. The electrical power device is detachably connected with the connection boards and has a holding frame, a driving device, and two rear wheels. The holding frame has two holding boards respectively connected with the connection boards by multiple securing assemblies. Each securing assembly has a holding sleeve, a connecting rod, a knob, and a spring. The holding sleeve has multiple abutting ribs. The connecting rod is mounted through the holding sleeve and has a first end and a second end selectively extending into one of the connecting holes defined in a corresponding connection board. The knob is mounted securely around the second end of the connecting rod and has multiple engaging grooves.

The electric wheel chair includes a base seat, on said base seat, a power mechansm, a differential mechanism for regulating rotating speed difference and a steering mechanism. In order to do not affect convenience for incoming and outcoming, at the same time of making user utilize two hands to operate and control a supporting mechansm is mounted on one side of the base seat, the interior of the supporting mechanism is equipped with a turning shaft coupled with steering mechanism, an operation-control mechanism is mounted on the turning shaft, and a cycloidal seat of said operation-control mechanism has a pivot point and a cycloidal portion which are space and arranged, said pivot point portion is mounted on the turning shaft, and on the cycloidal portion a hand wheel which is coupled with turning shaft by means of coupling mechanism is assembled, said hand wheel can be turned to side of base seat.

The invention provides a drive device for electric vehicles which is small-sized, improved in heat radiating characteristics and adapted for use with a drive wheel of reduced diameter, and an electric wheelchair comprising the drive device. The drive device is provided on the inner periphery of each of left and right drive wheels 80, 80 of the electric vehicle and comprises a casing 30 supported at one end thereof by an axle 22 on the electric vehicle, a motor 40 housed in the casing 30 and having a rotating shaft 43 aligned with the axle 22, and a housing 50 rotatably fitted around the casing 30 and rotatable by the rotation of the motor 40. The drive wheel 80 is provided around the outer periphery of the housing 50 and rotatable therewith.

An electric wheelchair has a carriage with 4 wheels, a load-bearing plate on said carriage, the drive motor, speed reducer and a lift axle, which are fixed on said load-bearing plate, a belt used by said drive motor to actuate the lift axle consisting of internal tube, screw bolt and belt wheel, and a chair fixed to the bearing plate on the top of lift axle.

The invention relates to an electrically propelled wheelchair with functions of a nursing bed. The electrically propelled wheelchair is characterized by being composed of a chair frame with an arc landing leg, a lying mechanism, a foot supporting mechanism, a driving mechanism and a control mechanism. By means of the electrically propelled wheelchair, users can convert from sitting posture to a lying state freely on the wheelchair, self-care ability of the users is effectively improved, mental health of the users is improved, and use safety of the users is further guaranteed under the effect of guardrails. A cabinet integrated with a bed pan greatly facilitates nursing of nurses. An effect of benefiting the users and the nurses is achieved.

The invention provides a combined electric wheelchair headstock. The combined electric wheelchair headstock comprises a direction control module, a motor movement module, a movement control module, an adjustable connection module, a fixed connection module and a supporting module, wherein the direction control module is fixed onto the motor movement module through the connection of a screw and a nut, the movement control module is fixedly connected with the motor movement module through a pair of bowl groups, and the central axes of the direction control module, the motor movement module and the movement control module share the same line; the adjustable connection module is fixedly connected with the movement control module through two symmetric connecting pieces on the side edges; the fixed connection module is connected with the adjustable connection module through a boss, a groove, a connecting ring and a collision lock; the supporting module is arranged on the side edge of the adjustable connection module in a threading manner. The combined electric wheelchair headstock can be matched with different hand-operated wheelchairs and can meet the requirements of different users; all modules are assembled through an embedding way, screws and a collision-lock clamping way, so that convenience in assembling and disassembling can be achieved; after the combined electric wheelchair headstock is separated from the hand-operated wheelchair, each structural module can be disassembled to be stored, so that convenience in storage and carrying can be achieved.

The invention relates to an electric wheelchair, in particular to a wheel-track combined electric wheelchair which can not only travel on a flat ground in a hub mode, but also cross obstacles and climb stairs in a track mode. The wheel-track combined electric wheelchair mainly comprises a wheel-track switching module, two track modules, a seat balance module, a chassis and a control box. The wheel-track switching module comprises two parallelogram mechanisms, a front coupling, a rear coupling, a switching crank and a switching push rod, the two parallelogram mechanisms are symmetrically distributed on two sides of the electric wheelchair, and the two track modules are symmetrically distributed on two sides of the electric wheelchair and comprise tracks, track driving wheels, a track driven wheels, track driven wheel inner plates, track driven wheel outer plates, track supporting plates and stepping motors. A hub traveling mode and a track travelling mode are simultaneously set on one device, the two modes can be automatically switched through a switching mechanism, and the electric wheelchair is compact in structure and convenient to use.

The invention provides an electric wheelchair and a stair climbing chassis assembly and relates to the technical field of wheelchair design. The wheelchair comprises a base, front wheels, rear wheels, a front guide rod, a rear guide rod, a motor and a control assembly, wherein the base is provided with a seat for bearing people; the front wheels are fixedly connected through a front wheel frame; the rear wheels are fixedly connected through a rear wheel frame; each of the front guide rod and the rear guide rod is composed of a sleeve and a piston which slides along the sleeve; one end of the sleeve of the front guide rod is fixed on the front wheel frame; one end of the piston of the front guide rod is fixed on the base; one end of the sleeve of the rear guide rod is fixed on the rear wheel frame; one end of the piston of the rear guide rod is fixed on the base; each of the front wheel and the rear wheel is in driving connection with one group of motor; and the control assembly is electrically connected with each group of the motor. By adopting the electric wheelchair and the stair climbing chassis assembly, the technical problems in the prior art that a stair climbing structure of the electric wheelchair is complicated and the operation is complicated are solved.

The invention discloses an electric wheelchair capable of detecting falling down of a patient and achieving automatic alarming and positioning. The electric wheelchair comprises a control panel and pushing handles, an armrest is arranged on the lower left portion of one pushing handle, the control panel is installed on the upper surface of the armrest, the portion, close to the lower left portion of the pushing handle, of the lower portion of the armrest is provided with a wheel cushion, an ultrasonic distance sensor is arranged on the left side of the lower surface of the wheel cushion, and a GPS positioner is arranged under the portion, close to the wheel cushion, of the right side of the ultrasonic distance sensor. According to the electric wheelchair, the structure is scientific and reasonable, use is safe and convenient, the ultrasonic distance sensor is arranged under the cushion of the electric wheelchair and can monitor the distance between the cushion and the ground in real time, it is judged that the patient falls down when the distance is extremely small, an alarm transmitter reminds families or medical personnel to help the patient in time, and by means of the installed GPS positioner, finding is more convenient, and the condition that the patient cannot be found due to the fact that the patient is located at an out-of-way place is avoided.

The present invention relates to an autobalance electric wheel-chair car with hypsokinesis protection wheels. It includes the following several portions: wheel-chair car body, electric drive system, left and right two side rotating axles, left and right two car wheels, seat with control switch, front wheel frame, rear wheel frame, a pair of balance wheels and a pair of hypsokinesis protection wheels. Said invention also provides the connection mode of all the above-mentioned portions, and also provides its concrete operation method.

The invention relates to an electric stair climbing wheelchair. The electric stair climbing wheelchair comprises a frame, armrests, a driving wheel, a driving motor, a steering wheel and a steering wheel controller. A stair climbing driving mechanism comprises a tooth ring, a telescopic tooth electric push rod, telescopic teeth, a hub connecting flange, an eccentric circle, a limiting plate and a shaft sleeve. The tooth ring is installed on the inner side of a hub of the driving wheel through a connecting angle. Telescopic holes are machined in the tooth ring and evenly distributed in the tooth ring, and the telescopic teeth are installed in the telescopic holes of the tooth ring. The eccentric circle is installed on a motor shaft of the driving motor and limited by the limiting plate and the shaft sleeve. A telescopic auxiliary wheel mechanism comprises an auxiliary wheel carrier, a shear type telescopic frame, an electric push rod, a lower guide rod, an auxiliary wheel, an upper guide rod and an auxiliary wheel. The driving wheel can better exert climbing driving force through the telescopic teeth to drive the stair climbing wheelchair to finish stair climbing operation, the electric wheelchair has the upstairs going, downstairs going and normal ride-instead-of-walk driving functions, the problem that old people or people unable to move freely drive the wheelchair and go upstairs and downstairs alone is solved, and the use performance and safety of the electric stair climbing wheelchair are improved.

A utility system intended for use with motorized and non-motorized wheelchairs and / or scooters having a hitch receiver mounted thereon by attachment to the hitch receiver, so that one or more auxiliary devices may be operably mounted on the wheelchair or scooter for use by its occupant.

The invention discloses an electric wheelchair with a rear view function, the structure of which comprises auxiliary wheels, a tripod, a body, a pedestal, an armrest, a rearview mirror, a touch screen, a cushion, a transmission line, a support plate, a camera, and a wheel body The transmission box, driving wheel, motor compartment, auxiliary wheels are connected with the body, the tripod is installed at the front end of the body, the armrests are respectively connected with the pedestal and the support plate, the rearview mirror is installed on the armrest, and the touch screen is installed on the armrest. The touch screen is connected to the body through the transmission line, the camera is installed on the rear side of the body, and the driving wheel is connected to the body through the wheel body transmission box. The beneficial effect of the present invention is that the device is equipped with a rearview mirror and a touch screen on the armrest, and A camera is installed on the rear side of the body, so that the device can observe the scene on the rear side through the camera connected to the rearview mirror and the touch screen, ensuring that the user can change the direction and back of the wheelchair safely and easy to use.

The invention discloses a hood for an electric wheelchair. The hood for the electric wheelchair comprises a support component and a hood frame component, and is characterized in that a unilateral rotating device is arranged between the support component and the hood frame component to control the relative rotation between the support component and the hood frame component. The hood for the electric wheelchair has the advantages that the hood frame has the folding function so as to be opened conveniently when in use and folded easily after use, the whole structure is simple, and the operation is convenient.

The invention discloses a foldable electric wheelchair which comprises a cushion, a backrest, a mainframe, front arms, a limiting frame and a folding adjustment device for fold-locking or unlocking the wheelchair. The cushion is movably connected with the backrest through a seat joint. Through the above mode, structure and folding mode of conventional wheelchairs are broken through, stability and safety of the wheelchair are improved by utilizing structure like the mainframe and the front arms, and folding locking and unlocking are completed by utilizing the folding adjustment device and the like, so that more convenience is brought to a user in folding and using.

The present invention relates to a light wheelchair. It includes the following several portions: wheelchair frame, front steering wheel, front roller, rear wheels, left armrest tube, right armrest tube, vertical tube, fixed plate, hollow bearing, manual operation lever, manual brake handle, motor, electric brake, and motor switch. Besides, said invention also provides the connection mode of all the above-mentioned portions and the concrete operation method of said light wheelchair.