57 results about "Electric wheelchairs" patented technology

This application provides a method for ensuring sufficient battery power for an electric wheelchair during its journey, comprising the following steps: obtaining a user-defined itinerary for the next day, including a destination, a planned charging point, and a planned departure time; calculating the total battery power required to complete the itinerary, taking the planned charging point as the starting and ending point and combining it with a preset activity duration at the destination, wherein the total battery power required includes the round-trip battery power from the planned charging point to the destination and a preset redundant battery power corresponding to the preset activity duration; obtaining the current battery power of the electric wheelchair and predicting the predicted remaining battery power of the electric wheelchair at the planned departure time based on the current battery power and the estimated standby power consumption from the current time to the planned departure time; determining, based on the predicted remaining battery power and the total battery power required, whether the battery power is sufficient to complete the itinerary at the planned departure time; if not, issuing a charging reminder to the user before the planned departure time.

The utility model relates to the field of wheelchair discloses a kind of foldable electric wheelchair, comprising: back frame, to provide back support;Seat cushion frame is used to provide hip leg support, the lower part of the back frame is pivotally connected with the rear portion of the seat cushion frame, leg frame, including front leg support and rear leg support, the front leg support is fixedly connected with seat cushion frame, the rear leg support is hinged with the front leg support, the rear leg support is also provided with the first connecting rod linked with the back frame.The beneficial effects of the above technical solution are: the stability of the seat cushion frame can be improved by fixing the front leg support and the seat cushion frame, and the comfort is ensured.The linkage of the rear leg support and the back frame can make it easier to fold up the back frame and the rear leg support, making the folding and unfolding of the wheelchair more rapid.

The utility model discloses a novel brushless lightweight electric wheelchair, including the electric guide rail of fixed in wheelchair backrest frame back side and downward, and the sliding end of electric guide rail is installed with the mounting seat through spring seat, and the mounting seat is equipped with the massage head for massaging the back of people through the fixing frame, and be equipped with the drive motor of drive massage head rotation on the mounting seat, and the both ends of electric guide rail are equipped with the position sensor of detecting the position of massage head respectively, still be equipped with controller on the wheelchair, position sensor, electric guide rail and drive motor all are electric connection with controller, the utility model discloses massage mechanism can move up and down, like this can to the whole back memory massage, this has played the effect of promoting blood circulation, avoids the body to be not comfortable because of long sitting, wherein the setting of spring seat guarantees the elastic contact between massage head and the back of human body, avoids knocking the back of human body.

This invention discloses a safety processing algorithm and system for dual-Hall collaborative verification position sensing of an electric wheelchair joystick, relating to the field of electromechanical control technology. The algorithm includes acquiring a first output signal from a triaxial Hall sensor and a second output signal from a linear Hall sensor, and performing dynamic baseline calibration to obtain two anti-drift position signals. Co-occurrence difference calculation and consistency determination are performed on the two anti-drift position signals to obtain a sensor cluster health status value. Signal fusion and fault reconstruction are performed based on the sensor cluster health status value and the two anti-drift position signals to obtain a fused position command. A confidence-based safety joystick command is generated based on the fused position command and the sensor cluster health status value, and simultaneously sent to the microcontroller module. This provides complete information, including reliability assessment, for subsequent control decisions, thereby constructing a full-link safety protection system from signal perception to control decision-making.

The application provides a thrust auxiliary control method, device and system of an electric wheelchair and a medium, and relates to the technical field of electric wheelchair control. The method aims to solve the problems of motion unevenness, travel yaw and insufficient safety caused by simple control strategy in the prior art. The method comprises: performing low-pass filtering processing on the original input signal received from the rear handle control rod; performing gear switching by using hysteresis logic based on the filtered linear velocity component; introducing a yaw compensation mechanism to differentially adjust the target speed of the left and right drive wheels to compensate for travel yaw; applying an angular acceleration slope limit to the angular velocity component to smooth the steering process; and monitoring the continuity of the original input signal, and triggering a safety parking strategy when a signal interruption timeout is detected. The application can significantly improve the smoothness, accuracy and safety of the thrust auxiliary control of the electric wheelchair through multi-strategy fusion.

The utility model discloses a kind of electric wheelchair with auxiliary lower limb exercise function, it is related to electric wheelchair technical field, including electric wheelchair body, further include placing plate, placing plate is fixedly installed below electric wheelchair body, the front side of electric wheelchair body is rotatably installed with two supporting leg plates, the double legs of user who is sat on electric wheelchair body can be supported by supporting leg plate, reciprocating component for driving supporting leg plate to move is installed between placing plate and supporting leg plate, two supporting leg plates can be driven by reciprocating component with its and electric wheelchair body rotatable installation place as center synchronous or asynchronous swing, so as to drive the double legs of user can be in use electric wheelchair body Also can realize the activity exercise of lower limb, so as to can reduce the electric wheelchair body in prior art in the complication of lower limb muscle atrophy, joint stiffness and blood circulation disorder and muscle degradation etc. caused by user long-term sitting in use.

The application provides a rotatable backrest seat and an electric wheelchair. The rotatable backrest seat comprises a base, a backrest and a locking mechanism. The locking mechanism comprises a locking piece. The backrest is rotatably connected to the base. The base is provided with no less than two locking portions corresponding to the backrest. The locking portions are arranged in the circumferential direction of the rotation axis of the backrest. The locking piece is used to pair with the locking portions to prevent the backrest from rotating relative to the base. The electric wheelchair comprises a vehicle body, wheels and a rotatable backrest seat. The backrest is rotatably connected to the base. The base is provided with at least two locking portions corresponding to the seat. The locking portions are arranged in the circumferential direction of the rotation axis of the backrest. The locking piece is movably arranged on the backrest. When the backrest rotates, the locking piece can correspond to different locking portions. Thus, the backrest has different angles relative to the base to realize different use scenarios of the user.

This invention relates to the technical field of mobility tools and discloses an electric wheelchair, including a controller, a seat, front wheels, rear wheels, and a support transmission assembly. The support transmission assembly includes a base bracket, a main support frame, a front connecting rod, and a rear drive push rod. The front connecting rod and the rear drive push rod are arranged sequentially in a front-rear direction. The upper end of the main support frame is rotatably connected to the seat, and the lower end is connected to the front wheels. The front end of the base bracket is rotatably connected to the lower end of the main support frame, and the rear end is connected to the rear wheels. The two ends of the front connecting rod are respectively connected to the seat and the lower end of the main support frame. The two ends of the rear drive push rod are rotatably connected to the upper end of the main support frame and the base bracket, respectively. The seat is equipped with an angle sensor, and the controller is electrically connected to the angle sensor, the front connecting rod, and the rear drive push rod. This electric wheelchair improves safety when going up and down slopes and meets the user's need to reach items at high places.

The application discloses a portable and detachable intelligent electric wheelchair, which comprises a power platform, drive wheels are installed at both ends of one side of the power platform, supporting rollers are installed at both ends of the other side of the power platform, an operation rudder is arranged upwards at the front side of the power platform, throttle handles are arranged at the upper ends of the operation rudder, a mounting groove is arranged downwards at the rear of the power platform; the application further comprises a seat platform, a backrest plate is rotatably connected to the rear side of the seat platform, a first supporting inclined rod and a second supporting inclined rod are rotatably connected to the lower end of the rear of the seat platform, a parallel pull rod is rotatably connected between the first supporting inclined rod and the second supporting inclined rod, supporting connecting sleeves are arranged at both ends of the lower sides of the first supporting inclined rod and the second supporting inclined rod, and the power platform is provided with a plurality of electromagnetic locks which are used for one-to-one corresponding connection with the supporting connecting sleeves. The application can be switched between the electric wheelchair and the balance car, and can provide a fashionable and practical travel option for young people.

1. The name of the design product: electric wheelchair. 2. The use of the design product: an electric wheelchair for the use of the people with difficulty in moving. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

This utility model discloses a multi-functional frame for an electric wheelchair, including horizontally spaced frame bodies with a folding assembly between them. A light strip module is located on the outer upper part of the frame body, arranged along the front and rear of the wheelchair, and a backrest is located on the inner upper part of the frame body, arranged at intervals. The folding assembly includes a pair of inverted U-shaped folding frames. This utility model provides a folding assembly between the two frame bodies, allowing them to unfold when separated and fold when brought closer together. The light strip module on the outer upper part of the frame body is arranged along the front and rear of the wheelchair, providing visibility and serving as an indicator, thus improving the safety of wheelchair use. The two folding frames are arranged in a cross configuration to form a scissor-folding structure. When the two folding frames unfold outwards, their upper ends can engage with the backrest to lock them in place, resulting in high unfolding stability. During the folding process, the two frame bodies move closer together simultaneously for rapid folding.

This invention discloses a high torque density dual-rotor motor and an electric wheelchair using this motor. The motor is a radial flux motor, comprising a stator assembly, an outer rotor, an inner rotor, a planetary gear assembly, a connecting disc, a front cover, and a rear cover. The front and rear covers are joined to form a cavity that encloses all core components. The stator assembly has two optional structures: one is where the stator teeth and windings are fixed to the support disc and the closed slots in the stator's inner diameter by filling with epoxy resin; the other is where several individual stator teeth with windings are connected and fixed into a single unit using epoxy resin, and the entire unit is fixed to the support disc. Finally, the support disc fixes the entire stator to the front cover. In this design, the connecting disc enables synchronous rotation of the inner and outer rotors and transmits power to the shaft. The planetary gear assembly is built into the cavity to amplify torque. Most components of this motor use interference fits, resulting in a compact and lightweight structure with high torque density and transmission efficiency, stable operation, and suitability for the hub motor requirements of electric wheelchairs.

The utility model discloses a quick folding wheelchair handrail and electric wheelchair belong to wheelchair technical field. The utility model discloses a quick folding wheelchair handrail, including handrail body, and handrail body can be relative wheelchair lateral movement to unlock and rotate folding along the front and back direction of wheelchair, and is equipped with the unlocking wrench and the ejection pin on handrail body, and the ejection pin is slidably installed in handrail body along the lateral of wheelchair, and one end of ejection pin can be opposite with the side of wheelchair, and the unlocking wrench is rotatably installed on handrail body, and the unlocking wrench has the ejection face of opposite with the other end of ejection pin on, and the ejection face can change the contact position with ejection pin with the rotation of unlocking wrench, and generates the reverse pushing effect to handrail body through ejection pin, and makes handrail body relative wheelchair lateral movement and unlocks folding. The utility model only needs to pull the unlocking wrench when operating, and the convenience of wheelchair handrail folding operation is greatly improved, and the operation is quick and labor saving.

The application provides a monitoring assembly and an electric wheelchair. The monitoring assembly comprises a mounting plate, a camera module and a light module. The light module comprises at least one of a brake light and a light supplementing light. The camera module and the light module are arranged on the mounting plate in a spaced manner. The camera module can capture road surface images, thereby improving driving safety and convenience. Meanwhile, the camera module and the light module are more easily assembled to the electric wheelchair through the mounting plate, and the monitoring assembly is more convenient to install.

The utility model provides electric wheelchair omnipotent tractor relates to medical instrument technical field, including center shaft, the length direction of center shaft is in the middle and is equipped with two first fixed parts, one side of two first fixed parts is rotatably connected with first rotator, one side of first rotator is fixedly connected with the spherical shell, one side of spherical shell is provided with the main shaft, one end of main shaft away from this spherical shell is provided with another spherical shell, one side of another spherical shell is fixedly connected with second rotator, one side of second rotator is provided with two second fixed parts, both ends of main shaft are fixedly connected with the ball cage, set up a plurality of steel ball through the ball cage surface of both ends of main shaft, set up the raceway on the inner wall of spherical shell again, utilize the positioning rolling fit of steel ball and raceway, realize the flexibility of the sleeve joint between ball cage and spherical shell, and then reduce the radius of turning of rear wheelchair when current side wheelchair turns, improve the adaptability of tractor when moving on complex road surface.

This invention provides a quick-release battery mechanism, including a battery assembly, a mounting base, a locking mechanism, and a switching mechanism. The mounting base has a battery compartment suitable for accommodating the battery assembly. The locking mechanism includes a locking groove, a locking pin, a locking spring, and an operating part. The locking spring is adapted to drive the locking pin into the locking groove, and the locking mechanism is in a locked state. The operating part is adapted to drive the locking pin out of the locking groove, and the locking mechanism switches from the locked state to the unlocked state. The switching mechanism is adapted to limit the operating part, so that the locking pin remains out of the locking groove, that is, the locking mechanism remains in the unlocked state. One of the battery assembly and the mounting base includes the locking groove, and the other of the battery assembly and the mounting base includes the locking pin and the operating part. This invention, by setting up a locking mechanism and a switching mechanism, ensures the stable installation of the battery assembly on the mounting base, while allowing users to quickly and easily complete the installation and removal of the battery.

The utility model discloses an electric wheelchair. The electric wheelchair comprises a front wheel and rear wheel assembly, a main supporting beam, a seat assembly and a lifting assembly. The main supporting beam is hinged to the front wheel and rear wheel assembly. The seat assembly is hinged to the main supporting beam. The lifting assemblies are hinged between the front wheel and rear wheel assemblies and the seat assembly, the lifting assemblies are used for driving the seat assembly to be lifted and folded, each lifting assembly comprises a first electric push rod and a second electric push rod, and the first electric push rods are hinged between the main supporting beam and the seat assembly; the second electric push rods are hinged between the front wheel and rear wheel assembly and the main supporting beam. When the electric wheelchair needs to be folded, the lifting assembly drives the main supporting beam to move, the height of the seat assembly is lowered, folding is completed, safety can be guaranteed, the front wheel assembly and the rear wheel assembly are not affected in the folding process, and use after folding is not affected.

1. Name of the product subject to this design: Electric Wheelchair (Model 8026). 2. Purpose of this design: To be used as a means of transportation or mobility aid. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention provides a method, device, and vehicle system for controlling an electric wheelchair guide and sliding door on a bus. The method includes: controlling the vehicle to kneel in response to the opening of a first target switch, wherein the first target switch is related to the vehicle's kneeling function or guide function; opening a target sliding door to a first opening degree after the vehicle kneels to a specified height, wherein the target sliding door is a sliding door corresponding to the electric wheelchair guide; controlling the electric wheelchair guide to extend until it touches the ground; and controlling the target sliding door to fully open. The bus electric wheelchair guide and sliding door control method in this embodiment can automatically control the vehicle's kneeling, the opening and closing of the retractable electric wheelchair guide, and the sliding door, without requiring manual control by the driver. This effectively avoids obstruction or even damage to the electric wheelchair guide and sliding door due to misoperation or operational logic errors.

1. Name of the product in this design: joystick. 2. Application of this design: It is intended to be compatible with various equipment such as engineering machinery, agricultural machinery handrails, robots, electric wheelchairs, drones, medical equipment, aerospace / marine equipment, broadcasting and television equipment, excavators, forklifts, control platforms, and aerial work platforms. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view. 5. The features of the left view are shown in perspective view 1, so the left view is omitted; the features of the right view are shown in perspective view 2, so the right view is omitted; the features of the rear view are shown in perspective view 3, so the rear view is omitted.

The application relates to the technical field of intelligent auxiliary travel equipment, and particularly provides an obstacle avoidance early warning system suitable for an electric wheelchair. The system comprises a multi-sensor perception module for collecting multi-modal data of a surrounding environment; a data processing and risk assessment module for constructing a local environment dynamic map and performing multi-dimensional risk quantification; an intelligent early warning and decision module for executing hierarchical early warning and flexible active intervention such as vision, hearing and touch according to a risk level; and a personalized learning module for optimizing risk assessment parameters and early warning strategies through reinforcement learning based on user historical behaviors. The system can realize all-around obstacle identification and dynamic avoidance, has high adaptability and learning ability, significantly improves the driving safety and user experience of the electric wheelchair in a complex environment, and has good practicability and popularization prospect.

1. Name of the product in this design: Electric Wheelchair. 2. Purpose of this design: To provide a vehicle for people with mobility impairments to ride and use. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the designed product: electric wheelchair (616). 2. Use of the designed product: for wheelchair. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

A wireless access control system network, in which a multi-level machine-readable code system and method are deployed for initiating and enabling contact-less access control to a device available for rental, access and use in an environment, by scanning multi-level machine-readable codes displayed in said environment using web-enabled mobile phones. The multi-level machine-readable code system including multi-level codes including facility-level codes, site-level codes and device-level codes, that are scanned by mobile computing devices such as mobile smart phones to initiated web-based e-commerce-enabled transactions that allow guest users to select and rent the particular networked devices available for rental and use within a facility, such as, for example, storage lockers, strollers, EVCs, wheelchairs and the like at a site selected within the environment. The wireless access and control system network can automatically assign an available device to the guest user at the selected site. When the guest reads the device-level machine-readable code on a device available for rental at a site, the wireless control access network also enables the guest users to scan the code and rent the device at the selected site and automatically control access to the rented device at the selected site, for access and use in the environment.

1. The name of the design product: electric wheelchair (W5216). 2. The use of the design product: for people with difficulty in movement to ride and help walk. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 5 perspective view 1. 5. Design 5 is designated as the basic design.

This utility model provides a modular electric wheelchair battery compartment, including a compartment body containing a battery module. The upper end of the compartment body is connected to a screw drive assembly via a quick-connect fitting. A handwheel is provided on one side of the screw drive assembly. The quick-connect fitting includes a first sliding block, a second sliding block, and a hinge positioning component. The first sliding block is connected to the screw in the screw drive assembly, and the hinge positioning component is fixedly connected to the compartment body. A hinge latch is also provided at the upper end of the hinge positioning component. The advantages of this utility model are: through the dual movement mechanism of screw drive and sliding pair, the compartment body can be pulled out step by step. The user can expose the charging port to the side of the wheelchair by turning the handwheel, without disassembling the battery module or requiring assistance from others, significantly improving the convenience of independent operation; the support design of the hinge latch prevents the compartment body from tipping over during movement, ensuring stability during use.

The application provides an electric wheelchair, which comprises wheels, a motor, a frame and a seat, the wheels are rotationally connected with the frame, the seat is arranged above the frame, the motor is arranged on the frame and is used for driving the wheels to rotate; the frame comprises a body, a locking member and a cover, the body forms a containing cavity for containing a battery, the cover can cover an opening of the containing cavity, the locking member is movably connected with the body, the cover has a through hole and an insertion part, the body is provided with an insertion opening matched with the insertion part, the insertion opening prevents the cover from moving upward when the insertion part is inserted into the insertion opening, and the locking member prevents the cover from moving in the plane direction of the through hole when the locking member is arranged in the through hole. The electric wheelchair in the application can realize an electric wheelchair which can conveniently open and close the battery compartment cover and can ensure that the cover is firm when being closed.

The application provides a slope automatic obstacle avoidance and speed control system and method of an electric wheelchair, and relates to the field of control systems.The control system comprises a driving module, an automatic obstacle avoidance module, a self-balancing controller module, a speed sensor module, a heart rate detection module, an alarm module, a speed reduction module and a central processing module.The driving module, the automatic obstacle avoidance module, the self-balancing controller module, the speed sensor module, the heart rate detection module, the alarm module and the speed reduction module are electrically connected with the central processing module.The application can remind the passenger to avoid the road section that the electric wheelchair cannot climb in advance, estimate the speed after 2s by measuring the acceleration and real-time speed, reduce the speed in advance before reaching the upper limit of the wheelchair climbing speed, measure the distance of the obstacle by ultrasonic sensors and infrared sensors, realize automatic obstacle avoidance by a fuzzy control algorithm, and realize the slope stability of the wheelchair by the self-balancing control module.