242 results about "Electric wheelchairs" patented technology

The invention provides a novel movement imagery electroencephalogram control-based intelligent wheelchair system, and aims to provide a service auxiliary motion tool for paralyzed patients or elderly people and help them to take free activities outdoors. The system consists of a portable electroencephalogram acquisition system, a signal processing device, an interface circuit and an electric wheelchair, which are connected in turn. The portable electroencephalogram acquisition system is a set of simple and practicable electroencephalogram acquisition system and is used for recording electroencephalogram signals under user imaginary left and right hand motion tasks; the signal processing device is a signal processing module which operates on a laptop, extracts imagery motion-related electroencephalogram characteristics and identifies the subjective intention of the user; the interface circuit converts the identified subjective intention of the user into four paths of voltage signals; and the electric wheelchair receives the four paths of control voltage signals and controls the operating conditions of left and right rear wheel motors. The intelligent wheelchair system implementing mode can be applied to other application fields of direction control.

The invention relates to the technical field of aged-providing equipment and discloses a speed loss braking device for an electric wheelchair transmission shaft. The speed loss braking device for theelectric wheelchair transmission shaft comprises a rotary shaft. Moving blocks are movably connected outside the rotary shaft. Connecting plates are fixedly connected outside the moving blocks. Shellsare movably connected inside the rotary shaft. Springs are movably connected inside the shells. Electrorheological fluids are movably connected inside the shells. Electric wires are movably connectedinside the shells. Anticollision pads are movably connected inside the rotary shaft. Conductors are movably connected outside the rotary shaft. According to the speed loss braking device for the electric wheelchair transmission shaft, through interaction among the rotary shaft, the moving blocks, the connecting plates, the shells, the springs, the electrorheological fluids, the electric wires andthe anticollision pads, when the wheelchair travels normally and the rotating speed of the rotary shaft is normal, normal use of the wheelchair is not influenced; in this way, it can be avoided thatnormal use of the wheelchair is influenced because of speed limit, and the influence of a maximum-degree braking structure on the rotary shaft can be avoided; and in this manner, the device is more applicable to use under actual conditions.

An electric wheel chair belongs to an article for daily use and comprises a pedal, a cell box, a pair of front frames, a pair of rear frames, a chair seat, a chair back, a pair of armrests and an armrest locking mechanism; front axle seats are arranged on two sides of the front end of the pedal respectively, and rear axle seats are arranged on the two sides of the rear end respectively; the cell box is connected with the pair of rear axle seats; a left wheel motor and a right wheel motor are arranged in the cell box; a left traveling wheel is fixed on a left wheel motor shaft of the left wheel motor, and a right traveling wheel is fixed on a right wheel motor shaft of the right wheel motor; each front frame comprises a front direction wheel arm, a front frame arm and a folding mechanism; one end of each rear frame is hinged with the side part of the cell box, and the other end of each rear frame is connected with a rear frame connecting rod; rear universal wheel seats are fixed on the other end of each rear frames; rear universal wheels are arranged on the rear universal wheel seats; the chair seat is fixed on a chair seat bracket; the chair back is hinged with the chair seat; and a controller is arranged on one armrest and is in wireless fit with a controller host. The electric wheel chair has the advantages as follows: the size of the wheel chair can be reduced so that the wheel chair is convenient to store; the wheel chair is rotatable in-situ; the turning radius is small; and the wheel chair is comfortable and safe.

The invention relates to an electric wheelchair with a massage function which is convenient for an electric wheelchair rider incapable of independently walking, and solves the problems of the easy fatigue and bedsore generation because the existing product can not carry out hip massage on patients. For the above purposes, the electric wheelchair of the invention takes a singlechip as a core control chip, comprises an electric wheelchair controller, a serial communication interface, a massage control singlechip, an air bag control unit, an air pump unit, a power source contravariant unit, an abnormal protection unit, a power source unit and the like, and is characterized in that the I/O port of the massage control singlechip is respectively connected with the air bag control unit, the power source contravariant unit and the abnormal protection unit; and the electric wheelchair controller is connected with the serial communication interface and the massage control singlechip and utilizes procedures solidified in the singlechip to drive each unit to operate in a controlled mode. The invention can be used for designing, developing and manufacturing the electric wheelchairs.

The invention discloses an indoor auto-navigating Internet-of-things intelligent wheelchair and a control method thereof. The indoor auto-navigating Internet-of-things intelligent wheelchair has intelligent new functions of the establishment of an environmental map in a room without GPS, autonomous operation, autonomous environment exploration, autonomous location, autonomous navigation and automatic obstacle avoidance and the like, in addition to being capable of replacing ordinary wheelchairs, for users who are unable to handle wheels, have no eyesight to judge the environment, and are incapable of controlling ordinary electric wheelchairs, and for occasions where dynamic obstacles require flexible judgment and control, the intelligent wheelchair has prominent self-adaptivity and furtherhas the advancement of the remote monitoring and control and smart home Internet-of-things; the intelligent wheelchair is smart home which takes a battery as power, where a passenger can perform automatic control and plane omini-motion (move forward, move back, make a turn, move laterally and rotate in situ on the ground), and which can build an environmental map, perform autonomous navigation and automatic obstacle avoidance and can be remotely controlled through Internet and controlled by Internet of things.

The invention provides a wheelchair and bed combined nursing bed. The wheelchair and bed combined nursing bed comprises an electric wheelchair and a bed body which is provided with a wheelchair placement area in the middle. The chair surface of the electric wheelchair is a foldable chair surface and has a lying-down state and a sitting and lying state. The wheelchair placement area in the middle of the bed body is used for containing the electric wheelchair. After the electric wheelchair is in the wheelchair placement area of the bed body, if the electric wheelchair is in the lying-down state, the chair surface of the electric wheelchair extends to form a flat plate structure and forms the bed surface of the bed body. If the electric wheelchair is in the sitting and laying state, the electric wheelchair can be separated from the bed body. By means of the wheelchair and bed combined nursing bed, a user does not need to be transferred from the wheelchair to a bed or transferred from the bed to the wheelchair, the electric wheelchair can directly move forward and moves out of the bed body, the pain suffered by patients is reduced, and life quality is improved.

A device that easily attaches and detaches to brackets which have been attached to a tube be it round, square, or rectangle, found on a mobility unit such as but not limited to an electric scooter, electric wheelchair, manual wheelchair, walker, or other similar vehicle, to temporarily secure, attach, or hold any object that contains at least one or more legs, tips or ends, such as an umbrella, a walking stick, a walking cane, a crutch or other item. The tube to which the device is attached may be vertical or angled as much as halfway between vertical and horizontal. The device is easily removable from the mobility unit, with or without the object that it is being used to secure, attach, or hold, still attached, secured, or held, in order to facilitate folding, storing, or transporting the mobility unit.

The invention discloses an electric wheelchair and belongs to an article for daily use. The electric wheelchair comprises a chair seat frame which is provided with a chair seat, a chair back, a pedal, a pair of front supporting frames, a pair of rear supporting frames, a pair of battery boxes, and a pair of armrests, wherein two sides of the chair back are connected with one end of a chair back supporting pipe respectively, and the other end of each of a pair of chair back supporting pipes is hinged with one end of the chair seat frame; a battery box connection pipe is fixed between a pair of rear supporting frames; the battery boxes are fixed with two ends of the battery box connection pipe, batteries are arranged in the battery boxes, motor seat frames are fixed on the battery boxes, rear wheel assemblies are connected with the motor seat frames, a limiting retaining foot is fixed on the middle part of each battery box, one end of each of a pair of battery boxes is connected with one end of a front supporting pipe respectively, and the other end of each front supporting pipe is connected with a front wheel assembly; and one end of each of the armrests is fixed with one chair back supporting pipe, the middle part of each armrest is hinged with the upper end of an armrest supporting pipe, the lower end of the armrest supporting pipe is connected with the chair seat frame, a pull wire is arranged at one end of the chair seat frame and is matched with the chair back supporting pipes, and a remote controller is arranged on one armrest. The chair seat frame, the chair back and the pedal can be folded together, so that the storage space is saved.

The invention discloses an electric drive head device for a wheelchair. The electric drive head device for a wheelchair comprises a vehicle head and a connecting device which is connected with the wheelchair, wherein the vehicle head comprises a vehicle shell, a handlebar and a driving hub, and a front fork weldment is sealed in the inner side of the vehicle shell; an open slot in the bottom of the front fork weldment controls a rotary spindle of a motor which drives the driving hub forward in a connecting mode, and a driving rod mounted on the top of the front fork weldment is connected with the handlebar through a height adjusting knob; a battery assembly locked through a fastener is embedded in the hollow part on one side of the front fork weldment, and the other side of the front fork weldment is connected with a steering seat through a laminating plate. According to the electric drive head device for a wheelchair, advantages of manual wheelchairs and electric wheelchairs are integrated flexibly so as to facilitate the elderly or handicapped people, and the electric drive head device for a wheelchair has the advantages of being flexible to disassemble and assemble, excellent in scalable performance, capable of improving the life quality of the elderly or the handicapped and being controlled by a user at will, beautiful in appearance, easy to operate, good in quality, long in service life, novel in design and and promising in market prospect, and is a good innovative scheme.

The present invention is a smart electric wheelchair for the elderly, which comprises a battery for power supply and a control system for integrally controlling the electric wheelchair, and also comprises a body bracket, wherein the bottom of the body bracket is connected with a standing platform for a user to stand, a driving unit is provided on each side of the standing platform to drive the electric wheelchair; and a foldable seat is provided in the middle of the body bracket, and an armrest is provided on each side of the seat, with at least one of the armrests provided with a controller for controlling the entire electric wheelchair. The electric wheelchair is provided with a plurality of sensors which include a ranging and positioning sensor and/or an obstacle avoidance sensor, and further include an identification sensor, wherein the identification sensor identifiably corresponds to a one-to-one mobile identification device worn by a user, so that the electric wheelchair can automatically follow the user's position according to the collaboration between the mobile identification device and the sensor. The present invention solves the drawbacks of existing similar apparatuses and gives the elderly a better use experience, showing both practical and economical significance.

The invention discloses an electric wheelchair with an automatic return function, and further discloses an automatic return method for the electric wheelchair. The electric wheelchair comprises an MCUcontroller, a GPS/BD satellite positioning module, a NB-IoT wireless communication module, an acceleration sensor, a power supply module, an electric wheelchair control module, a memory, a cloud platform and an automatic travelling module. The MCU controller is connected with the GPS/BD satellite positioning module, the NB-IoT wireless communication module, the acceleration sensor, the electric wheelchair control module, the power supply module, the memory and the cloud platform. The MCU controller collects and processes satellite position information obtained by the GPS/BD satellite positioning module, base station auxiliary positioning information obtained by the NB-IoT wireless communication module and acceleration information obtained by the acceleration sensor to obtain current position information of a positioning terminal, and then the current position information is transmitted to the far-end cloud platform through the NB-IoT wireless communication module; and after the cloudplatform receives an automatic return instruction, the instruction is issued to the MCU controller, and the automatic return movement is achieved by issuing instructions to the electric wheelchair control module and the automatic travelling module through the MCU controller. The electric wheelchair with the automatic return function has the advantages that quite comprehensive indoor cellular dataconnection coverage can be provided, the ability of supporting mass connection is achieved, power consumption is lower, the standby time is longer, automatic return, real-time positioning and real-time monitoring of the travelling trajectory and battery electricity-quantity information are achieved.

A mechanical differential drive mechanism mainly comprises a shift fork, a meshing sleeve, driving and driven gears for straight drive position and a central steering position, a differential, a half shaft, a structural support, and the like. The mechanical differential drive mechanism has the advantages of simple structure, fine machinability, low cost, operational reliability and wide range of application. Different positions of the shift fork allow for the linear drive position and the central steering position; operation is facilitated; manual or electric operation is available. The mechanical differential drive mechanism is especially suitable for central-steering AGVs, central-steering EOD robots, special electric buses, electric tracked vehicles, electric wheelchairs for disabled people, and electric medical tables.

The invention provides a nursing robot with bathing and massaging functions. The robot can be used for assisting personnel to be nursed in turning over, sitting up, lying down, massaging and bathing and can also serve as an electric wheelchair and a bed. The robot can provide certain nursing for the personnel to be nursed and can effectively relieve the burden on nurses. The robot with the bathing and massaging functions is not only practical but also powerful and can be applied to places such as hospitals and families.

The invention relates to a universal motion switching mechanism for electric wheelchairs. The universal motion switching mechanism for electric wheelchairs comprises two rotating shaft fixing plates, universal bearing castor mounting members, universal bearing castors, two mounting tubes, support rods, foot plates, ejector blocks, and a rotating shaft. The universal motion switching mechanism for electric wheelchairs is characterized in that the rotating shaft fixing plates and the mounting tubes are respectively fixedly connected to a base of an electric wheelchair, the rotating shaft penetrates the rotating shaft fixing plates, two ends of the rotating shaft are fixedly connected with the foot plates respectively, one ejector block is disposed at the upper end of each mounting tube and fixedly connected to the rotating shaft, one support rod is connected to the inside of each mounting tube through a spring, the lower end of each support rod penetrates the corresponding mounting tube and is fixedly connected with the corresponding universal bearing castor mounting member, the upper end of each support rod is in contact connection with the corresponding ejector block, and one universal bearing castor is mounted below each universal bearing castor mounting member. The universal motion switching mechanism for electric wheelchairs allows the electric wheelchair to be conveniently switched from electric motion to universal motion.

The invention provides an electric wheelchair capable of advancing and retreating on smooth ground and walking up and down stairs, and belongs to the technical field of electric wheelchairs. A person with normal intelligence can operate the wheelchair to walk up and down the stair by himself/herself. A caterpillar band or a set of going upstairs rods are mounted near the rear portion of each main driving wheel of the currently produced and used electric wheelchair with a front wheel and rear wheels driven independently, the two rear wheels are driven by a motor through a differential mechanism, the main driving wheels have no effect when the wheelchair runs on a flat road, the caterpillar bands or the going upstairs rods can be clamped on the planes on the front ends of the stairs when the wheelchairs go up and down the stairs, the wheels are prevented from slipping on the stairs, and the wheelchair is assisted in going up the stairs. An X-shaped supporting frame and a supporting wheel set are mounted on the front bottom of the wheelchair, and when the wheelchair goes up and down the stairs, the wheel set is supported on the stairs, and the normal position of a seat part where the person sits is kept unchanged.

The invention relates to a wheelchair. A dual-mode electric wheelchair comprises a wheelchair body, an electric driving system for driving the wheelchair body, a steering mechanism located at the front end of the wheelchair body, an operation display board arranged on the steering mechanism to point towards a driver and a seat mounted on the wheelchair body, wherein the steering mechanism comprises a knob and a steering post; the electric driving system is a bidirectional electric driving system which can drive the wheelchair body to move in two directions; the steering post comprises a lower section and an upper section connected to the lower section in a self-driving state or other-driving state; the upper section is fixedly connected with the knob; the lower section is fixedly connected to the wheelchair body; and the upper section is rotated for 180 degrees with respect to the lower section when the upper section is converted from the self-driving state to the other-driving state. The invention provides a dual-mode electric wheelchair which not only can be self-driven, but also can be driven by others and a using method thereof. The dual-mode electric wheelchair, disclosed by the invention, has the advantages of solving problems of causing bad uniformity and bringing about inconvenience for nursing service by the single driving mode of the conventional electric wheelchairs.

The invention relates to an electric wheelchair power-assisted control system and a power-assisted control method. The electric wheelchair power-assisted control system comprises a gyroscope sensor, afirst pressure sensor, a second pressure sensor, a handle controller and a motor driver, wherein the gyroscope sensor, the first pressure sensor, the second pressure sensor and the motor driver are all connected with the handle controller; the first pressure sensor is mounted in a position where left hand pushing contact of the electric wheelchair is performed, and the second pressure sensor is mounted in a position where right hand pushing contact of the electric wheelchair is performed; the handle controller is arranged on the wheelchair; and the motor driver is connected with a left wheeldriving motor and a right wheel driving motor of the electric wheelchair separately. According to the control system, the gyroscope sensor, the first pressure sensor, the second pressure sensor, the handle controller and the motor driver are arranged, so that the effect that the electric wheelchair can be pushed to go forward or backward in a labor-free manner in the case of no people around is achieved.

The invention relates to the technical field of electric wheelchairs, in particular to a novel electric nursing wheelchair and a control method thereof. The novel electric nursing wheelchair comprisesa main frame body, a driver, an interaction instrument, driving wheels and a battery, wherein the battery and the driver are fixed below a base of the main frame body, the interaction instrument is fixed on one armrest of the main frame body, the driving wheels are arranged on the lower rear side of the main frame body, and the interaction instrument, the driving wheels and the battery are connected with the driver separately. Compared with the prior art, the novel electric nursing wheelchair and the control method thereof can well make up the blank of an existing electric power steering system, multiple intentions of a nurse are estimated in different use modes, so that different driving forces are provided, and the burden on the nurse pushing the wheelchair is relieved.

The invention belongs to the technical field of daily articles and relates to an electric wheelchair with the connectable or separable body and electric mechanism. The electric wheelchair comprises a body and an electric mechanism. The body comprises a seat frame and a backrest frame. The electric mechanism comprises an electric wheel support. The electric wheelchair is characterized in that a lock mounting rack is fixed on the seat frame and provided with a locking mechanism, the backrest mechanism is provided with an unlocking mechanism connected with the locking mechanism, and an electric wheel support locking mechanism corresponding to the locking mechanism is fixed to the electric wheel support and matches with the locking mechanism. When the electric wheel support locking mechanism is locked by the locking mechanism, the body and the electric mechanism are connected into a whole so that the electric wheelchair is electrically driven to walk automatically; on the contrary, the unlocking mechanism can be operated to separate the electric mechanism and the body, the body functions independently, and the requirements of users for flexibility in selection and use can be met accordingly.

A quick folding-unfolding device for an electric leisure wheelchair comprises a left connection bar, a left connection block, a right connection block, a right connection bar, a spindle, a manual rotary shaft, a fixing hook, a return spring and a fixing shaft; the left connection block and the right connection block are provided with lugs mating with each other, the left connection block and the right connection block form a rotary hinge structure through the spindle, the left connection block is provided with a mounting groove, the manual rotary shaft is rotationally mounted on the left connection block, the fixing hook is fixedly connected with the manual rotary shaft and is positioned in the mounting groove, the manual rotary shaft is parallel to the spindle, the return spring is disposed between the fixing hook and the mounting end of the left connection block, the right connection bar is provided with a clamp groove, the fixing shaft is fixed in the clamp groove and is parallel tothe spindle, and the left connection bar and the right connection bar are collinear when the hook end of the fixing hook is clamped to the fixing shaft. The quick folding-unfolding device provides flexible folding under light weight and is particularly applicable to foldable electric wheelchairs.

The invention discloses a method for realizing stair climbing of a robot. The robot takes a wheel set as a walking structure, planetary gears in the wheel set drives front wheels to change obstacle torque, stair climbing is achieved through cooperation with the boosting effect of synchronous power rear wheels, the wheel sets are installed on the robot or an electric wheelchair in a bilateral symmetry structure, and during turning, flexible in-situ turning can be achieved only by controlling the power wheel on one side to rotate forwards and controlling the power wheel on the other side to rotate reversely. The method is advantaged in that the robot or the electric wheelchair can stably climb stairs or cross obstacles with small torque, in-situ turning is flexible, and ground friction powerconsumption is low.