1643 results about "Wheelchair" patented technology

An expandable lavatory for full-size wheelchairs may comprise an aircraft lavatory door system with a forward door and an aft door wherein both doors are capable of expanding into an expanded locked position. The expandable lavatory for full-size wheelchairs may comprise a first single lavatory, a second single lavatory, a collapsible divider, and a lavatory door system which functions to provide a door to each single lavatory and a door for a configuration in which the two single lavatories convert into one expanded double lavatory. The expandable lavatory for full-size wheelchairs may be a forward lavatory facing the aisle in proximity to a first galley, a second galley, and a wheelchair tie down space.

The invention relates to the technical field of intelligent wheelchair scheduling, in particular to an intelligent wheelchair scheduling method and system. The method comprises the following steps: extracting an obstacle avoidance failure decision in a historical scheduling task, and generating a clustering logic of decision failure through clustering analysis; analyzing the motion trail deduction deviation of the sudden obstacle based on clustering logic, and further performing sudden risk pre-judgment lag analysis to obtain lag regression data; and lagging regression data is utilized to carry out front deviation correction memory learning of wheelchair scheduling braking, decision is optimized through reinforcement learning iteration, and finally optimized decision data is output. According to the method, the intelligent wheelchair scheduling technology is optimized, so that the intelligent wheelchair scheduling technology is more perfect.

The invention discloses a dynamic gesture recognition control system for an intelligent wheelchair, and relates to the technical field of intelligent wheelchairs, the system comprises the following components: an environment sensing module which is composed of a laser radar and an ultrasonic sensor and is used for collecting information of a surrounding environment in real time and constructing an environment map; meanwhile, the position and the shape of the obstacle and the distance information between the obstacle and the wheelchair are accurately recognized; by introducing the dynamic gesture recognition technology, not only can the current static gesture action of the user be recognized, but also the following action intention of the user can be predicted based on parameters such as the speed, the angle and the acceleration of the gesture, so that the intelligent wheelchair can make a response in advance, closer and smoother interaction with the gesture operation of the user is achieved, and in addition, the user experience is improved. In combination with the information of the environment sensing module, the intelligent wheelchair can more accurately understand the intention of the user and perform reasonable obstacle avoidance operation in a complex environment, so that the overall use experience and safety are improved.

A multimodal wheelchair configured to be securely mounted to an aircraft is disclosed. The multimodal wheelchair may include: a first section, including: a processing system contained within a housing of the first section; a movement controller component positioned on a portion of the first section that is connected to the processing system; a plurality of wheels that are controllable by the movement controller; and a set of tracks recessed within a first side of the first section; and a second section, including: a seat portion located on a first side of the second section, the seat portion having an integrated harness; and a connection component, coupled to a second side of the second section, that attaches the second section to the first section via coupling with the set of tracks of the first section. Other aspects are described and claimed.

The invention discloses an intelligent wheelchair control method based on multi-source information fusion, and belongs to the field of data recognition and wheelchair intelligent control. The implementation method comprises the following steps: constructing a corresponding relation between gesture actions and wheelchair control directions, and presetting an identification framework; processing the obtained multi-source information to obtain a basic probability distribution result of the evidence corresponding to each single-source information; determining the absolute importance of the evidence corresponding to each piece of single-source information in the fusion process; determining the relative importance of the evidence corresponding to each piece of single-source information in the fusion process; determining the comprehensive importance of the evidence according to the obtained relative importance and absolute importance; according to the comprehensive importance of the evidence corresponding to the single-source information, redistributing a fusion weight for the evidence corresponding to each piece of single-source information to obtain a weighted new evidence; dS evidence fusion is applied, a final fused gesture action recognition result is obtained, the behavior of the wheelchair is controlled according to the gesture recognition result, and intelligent wheelchair control based on multi-source information fusion is achieved.

The invention relates to the technical field of intelligent wheelchairs, in particular to an intelligent wheelchair safety early warning braking system and method based on trajectory prediction. According to the technical scheme, the system comprises a multi-sensor module, a data processing module, a track prediction module and a safety early warning braking module. Wheelchair motion state data are collected in real time through a multi-sensor module, multi-source data are fused based on a Kalman filtering algorithm, noise is removed, feature parameters of obstacles and the wheelchair are extracted, a motion track equation of the wheelchair and a target object is derived, the relative distance and the collision time are calculated, the collision risk is evaluated, and according to the risk evaluation result, the collision risk is evaluated. And triggering early warning and starting a brake device. According to the method, the future motion trails of the wheelchair and the target object can be predicted more accurately, the precision and reliability of trajectory prediction are remarkably improved, and powerful support is provided for pre-judging collision risks in advance.

A platform access system for a wheelchair includes a deployable ramp, actuators, a sensor, and a controller. The deployable ramp includes a first elongated beam having a toothed rack portion arranged thereon. The deployable ramp is moveable, via actuators, on a platform between a first position and a second position. The deployable ramp is vertically pivotable on an edge portion of the platform, with a second end being disposed at a second elevation. The first end of the deployable ramp is securable, via one of the plurality of actuators, to the edge portion, and the toothed rack portion of the first elongated beam is arranged to engage a sprocket of a drive wheel of a wheelchair that is disposed at the second elevation. A communication link of the ramp controller is arranged to communicate with the wheelchair to control the wheelchair to traverse the ramp and access the platform.

A frame assembly for a wheelchair includes a first side member, and a first leg support member coupled to the first side member. The first leg support member includes a first curved portion and a second curved portion, the first curved portion oriented to curve in a first direction, the second curved portion oriented to curve in a second direction, and the first and second directions being different.

The utility model relates to the technical field of wheelchairs, and provides a front wheel driving type stair climbing chair which comprises a chair frame, and a seat plate and a backrest are arranged on the chair frame. Two groups of obliquely arranged track frames are fixedly mounted at the side rear part of the chair frame; a track is mounted on the track frame; the chair frame is further provided with a stair climbing motor used for driving the two crawler belts to rotate synchronously. Two front wheels are mounted at the front end of the chair frame; a rotating shaft is arranged on the chair frame; the two ends of the rotating shaft are fixedly connected with rear wheel legs respectively, and rear wheels are installed on the rear wheel legs. The front wheel is a driving wheel; and the rear wheel is a driven wheel. Therefore, the front wheels are arranged to be the driving wheels, the wheel tread width is small, and then the turning radius is reduced. The structure of the rear wheels is simplified, spacing is reduced, and access to the door frame is facilitated. When the stair climbing chair steers in a narrow space, one front wheel serves as a turning fulcrum, the back and the side faces of the stair climbing chair have enough space, steering operation is convenient and fast, and safety is good. The front wheel is a driving wheel, so that the risk that the stair climbing chair turns backwards during sudden acceleration is also avoided.

An adaptable lavatory for persons of reduces mobility, such as wheelchair occupants, may comprise an aircraft lavatory wall system with a center wall which is configured to translate along a drop ceiling rail system. A linear rail system may be installed within the drop ceiling and have rollers coupled to hanging brackets to secure the center wall. The center wall may be secured in a center of two individual lavatory stalls to provide for a dual lavatory configuration. The center wall may be translated forward or aft along the drop ceiling rail system and secured on either side of the lavatory to provide for an expanded lavatory space in either a right-handed or left-handed configuration.

An air bag brake mechanism is characterized in that the air bag brake mechanism comprises an auxiliary brake mechanism (100) and a wheelchair structure (200), the auxiliary brake mechanism (100) is installed on the wheelchair structure (200) on the market, and then an air bag is manually controlled to control contact between the auxiliary brake mechanism (100) and the ground so as to control fixation or freedom of a wheelchair. Wherein the wheelchair structure (200) is provided for a common wheelchair which is not in the range of the patent but is only convenient to describe the auxiliary braking mechanism of the patent. The auxiliary braking mechanism has the beneficial effects that 1, the belt wheel seat is fixed through the auxiliary braking mechanism, and the chair is prevented from sliding; 2, a person does not need to bend down to fix a similar traditional brake wheel to fix the wheelchair, and the fixation or freedom of the wheelchair can be controlled only by manually controlling the air bag; 3, a pure mechanical structure is adopted, electric appliance auxiliary control is not needed, and performance is reliable and safe;

1. The name of this design product: Oxygen cylinder holder (for wheeled walkers). 2. Purpose of the product of this design: An accessory used on mobility aids such as rollators or wheelchairs, used to place oxygen cylinders. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

A holding system for a wheelchair in an aircraft is proposed, including a plate-shaped base unit having first fastening elements at an underside configured to be connected to complementarily shaped second fastening elements in the form of seat rails on a floor or surrounding structure in the aircraft for fastening the base unit, a front holding unit and a rear holding unit arranged on an upper side of the base unit at a distance from each other and defining therebetween a placement area for a wheelchair. The front holding unit and the rear holding unit are configured to form a releasable form-fit connection with the wheelchair disposed on the placement area so that the wheelchair is braced between the front holding unit and the rear holding unit. The holding system is configured to fix the wheelchair stationarily to the floor during operation of the aircraft.

The utility model discloses a wheelchair lifting device for a railway vehicle, which comprises a bearing frame fixed on a vehicle body through an upper bearing seat and a lower bearing seat, a housing and a driving mechanism are fixedly arranged on the bearing frame, the bearing frame is hinged with the upper part of a buffer device, and the lower part of the buffer device is connected with a guide device; the upper portion of the guiding device is connected with the bearing frame through a range extending guide rail, the lower portion of the guiding device is hinged to the platform assembly, and a safety handrail is arranged on the platform assembly. An electric control system and a positioning device are arranged on the bearing frame, and the positioning device corresponds to a limiting hole in the lower bearing seat. The device is simple in structure, convenient to use and small in occupied space, and does not need a hydraulic station; meanwhile, stable and reliable lifting action of the device is ensured.

The invention relates to the technical field of intelligent wheelchairs, and discloses an intelligent wheelchair with self-navigation, dynamic obstacle avoidance and self-balancing functions and a control method.The intelligent wheelchair comprises a wheelchair body and a control system thereof, the system comprises a multi-dimensional environment sensing unit, environment original data are collected through a sensor set, and environment sensing data are calculated and output; comprising positioning data, scene types, obstacle dynamic characteristics and road surface states; the intelligent decision-making control unit is used for inputting environment perception data, calculating and outputting an execution decision of scene adaptation and fusion control instructions through each module and controlling the wheelchair main body, and the decision comprises an optimal path coordinate sequence and speed limitation, a wheelchair main body obstacle avoidance driving control signal and a wheelchair main body balance driving control signal; and the aging-suitable operation and feedback unit is used for acquiring a user instruction analysis result in a non-contact manner and feeding back and outputting in an acousto-optic touch multimode manner. The travel autonomy and safety of old people and special groups are improved through high-precision navigation, rapid obstacle avoidance, stable balance and intelligent and simple operation.

A monument for installation in an aircraft passenger cabin comprises a housing extending from the floor upwardly toward the ceiling, the housing including a first configuration configured to receive a wheelchair in a first unfolded condition, and a second configuration configured to receive a stretcher in a second unfolded condition, a first interior space formed in the housing, a staircase disposed within the interior space; a second interior space formed in the housing, a first entrance into the first interior space through a door; a second entrance into the second interior space of the housing, and a securement assembly positionable on the floor, the securement assembly configured to secure one of the wheelchair or the stretcher in place within the interior space.

The invention is suitable for the technical field of management and monitoring of intelligent medical rehabilitation equipment, and provides an intelligent medical rehabilitation equipment management and monitoring system based on edge cloud collaboration, and the system comprises a terminal equipment layer which is used for collecting health monitoring data of a user, and the terminal equipment comprises an intelligent wheelchair or a nursing bed, and a family health terminal; the edge computing layer is deployed at a local node of a user side and is used for receiving the data of the terminal equipment, performing localization processing through a lightweight artificial intelligence algorithm, judging the abnormity of a health state index and pushing alarm information to a cloud according to the risk level of an event; the cloud platform layer is constructed based on a micro-service architecture, supports large-scale equipment access and resource dynamic scheduling, has a data intercommunication and sharing function and supports multi-role collaborative access and management, and roles include medical staff, family members and nursing workers; and the AI intervention module is used for executing equipment scheduling and remote intervention based on the analysis result.

1. Name of the designed product: Wheelchair (5001 plus). 2. Use of the designed product: for assisting travel. 3. Design points of the designed product: in shape. 4. Picture or photograph best indicating the design points: perspective view.

An ergonomic support cushion designed to alleviate discomfort from prolonged sitting. The cushion features a contoured shape that supports the spine's natural curvature and includes a central cut-out to relieve tailbone pressure, ideal for individuals with coccyx pain or those recovering from related surgery or injury. It is constructed from high-density memory foam with a density range of 52% to 56%, which adapts to the user's body shape, providing customized support that enhances comfort and reduces pressure points. The cushion also includes a non-slip base to ensure it stays securely in position on various seating surfaces. Its lightweight, portable nature allows it to be used in different environments, such as office chairs, car seats, wheelchairs, and home seating. This innovation provides a comprehensive solution for those needing improved comfort and support during extended periods of sitting, promoting better posture and reducing strain on the lower back.

The invention relates to the technical field of wheelchair dynamic obstacle avoidance path planning, in particular to a wheelchair dynamic obstacle avoidance path planning method and system, and the method comprises the steps: collecting the original perception information of a pedestrian, extracting the limited representation of the action capability corresponding to the pedestrian according to the original perception information of the pedestrian, and obtaining the dynamic obstacle avoidance path of the wheelchair according to the limited representation of the action capability. Determining a corresponding preset action capability limitation level, wherein action capability limitation characterization reflects that a characteristic index influencing normal walking of the pedestrian exists; according to the action capability limited level, calling a corresponding differential response strategy from a preset response strategy library, the differential response strategy comprising an avoidance action sequence and a multi-mode communication instruction; and continuously monitoring the original sensing information of the pedestrian, and stopping executing the differential response strategy when judging that the pedestrian leaves the preset passing route of the wheelchair. The method has the advantages that differentiated avoidance and communication strategies can be provided, and the safety and efficiency of interaction between the wheelchair and pedestrians in a complex environment are improved.

The utility model relates to the field of saw cutting devices, in particular to a saw cutting device for wheelchair machining. The technical problems that when a traditional saw cutting device for wheelchair machining conducts saw cutting work, dust flies everywhere, the dust fallen everywhere can be sucked by a human body, the body health is damaged due to the fact that too much dust is sucked, an extra dust removal device needs to be used for dust removal work during work, and use is inconvenient are solved. According to the technical scheme, the saw cutting device for wheelchair machining comprises a supporting assembly, a scraper assembly, a telescopic assembly, a clamping assembly, a saw cutting assembly and a spraying assembly. The saw cutting device is arranged and comprises a fixed main body supporting device, the supporting device is mainly used for supporting work, an electric lead screw sliding rail device is arranged on the supporting device, a movable fixed clamping device is arranged on the electric lead screw sliding rail device, and the clamping device is provided with two sides and can stretch out, draw back and rotate. And parts used for wheelchair machining are locked and clamped.

The invention discloses a wheelchair robot which comprises a seat and a movable chassis, an interaction control module and a motion control module are arranged on the movable chassis, a mechanical arm is arranged on the seat, a first camera is arranged on the mechanical arm, and a second camera is arranged on the seat. A first radar and a second radar are arranged on the two sides of the movable chassis respectively, and the first radar, the second radar and the second camera are electrically connected with the motion control module. Through cooperation of the first camera, the second camera, the first radar and the second radar with the interaction control module and the motion control module, the detection visual field of the wheelchair robot can be widened, so that the surrounding environment of the wheelchair robot is comprehensively sensed, and the safety of the wheelchair robot during use is improved.

A wheelchair is provided that includes a motor-driven laterally extendable platform that can be extended and retracted to assist a user in getting onto and off of the wheelchair. A motor drive system is provided that can be actuated by an actuator. The actuator can be, for example, a wired remote controller or a wireless remote controller. Full actuation can be accomplished by a single triggering motion of the actuator, or the actuator can be configured to require a constant holding of the actuator until a desired position of the platform is reached. Travel limits can be programmed into the motor drive system such that the drive system stops driving extension or retraction of the platform once a travel limit is reached. The wheelchair can also be converted into a recumbent position. Methods of transferring a user onto or off of the wheelchair are also provided.

The present invention, which is to solve the described problem, relates to a head unit of a delivery stick for wheelchair curling, which is capable of not only accurately delivering a curling stone by stably supporting the curling stone, but also adjusting the amount of spin applied to the curling stone by adjusting the position of a connecting portion to which the delivery stick and the head unit connect.

The utility model discloses an automobile seat automatic adjusting sliding rail and an automobile seat thereof, and belongs to the technical field of automobile parts. Comprising a static sliding rail, and the static sliding rail comprises a static sliding rail fixing bottom plate, a static sliding rail front side wall and a static sliding rail rear side wall; a movable sliding rail front edge folding groove and a movable sliding rail rear edge folding groove are formed in the movable sliding rail, and the bottoms of the left end and the right end of the movable sliding rail are each provided with a pair of Z-direction gap eliminating idler wheels; the seat basin connecting plate is connected to the upper part of the movable sliding rail; the screw rod is arranged in the static slide rail cavity; the movable sliding rail automatic displacement driving mechanism is matched with the seat basin connecting plate, the movable sliding rail and the screw rod; the device is characterized in that front clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the front edge folding groove of the movable sliding rail respectively, and rear clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the rear edge folding groove of the movable sliding rail respectively; a pair of movable sliding rail guide mechanisms is arranged on the downward side of the middle of the movable sliding rail. The device has the advantages of simplifying the overall structure and facilitating manufacturing and assembling; the all-around excellent anti-backlash effect is embodied; the service life is long.

The present invention discloses an intelligent nursing control method and system for people with limited mobility, which forms a full-process solution by integrating core functional modules and intelligent control logic. When converting from a bed to a chair, the central control unit receives instructions, unlocks the bed's accommodating space, adjusts the user's posture, and guides the docking through a hybrid path planning algorithm; when using the toilet, the posture and the position of the toilet body are adjusted, and it automatically cleans, dries, packs, and resets after completion; the turning assistance drives turning according to instructions or body pressure signals. The present invention achieves seamless scene switching through systematic control, reduces safety risks, and improves convenience and comfort; it can also cope with changes in the bed's position, allowing the wheelchair and bed to be reassembled more smoothly, enhancing the flexibility and practicality of the device, and meeting the daily care needs of people with limited mobility.

Embodiments described herein provide apparatus and methods for efficiently modifying existing travel reservations stored in a GDS using a graphical user interface for issuing commands to the GDS. These include commands that would typically require manual entry of commands and arguments using a command-line interface. The graphical user interface can be displayed on a display device of a computer system and used by an agent to modify the reservation by selecting a different flight, to change seating arrangements, to meet basic needs, such as wheelchair assistance and food accommodations, and to help reduce any costs charged to the user as a result of the changes as the modifications can be entered more quickly and with fewer errors.

The invention relates to the technical field of welding equipment, and discloses a wheelchair machining welding tool which comprises a machining table, a linear rail is transversely arranged in the middle of the top end of the machining table, and a plurality of vertical rails are arranged on the two sides of the middle of the top end of the machining table at equal intervals. By adding and arranging the pre-welding treatment mechanism, before welding treatment is conducted on an arc-shaped upper beam of a backrest frame on a wheelchair, the mechanism conducts pre-welding pretreatment operation on a backrest frame beam needing to be welded, and according to the treatment mode, an anti-deformation cavity of a cooling shaping base can be matched with cooling liquid circulation; the arc-shaped part is heated through the outer convex seat, the heated arc-shaped part is rapidly cooled, stress is further released, the shape is fixed, structural distortion caused by stress concentration is prevented, a welding port is polished through the groove part of the outer convex seat, an arc transition groove is formed, follow-up welding operation is facilitated, the structural strength of a welding part can be enhanced, and a good premise is provided for high-quality welding.

Systems for securing wheelchairs in a wheelchair-accessible van or similar personal or commercial vehicle. The wheelchair securement system may be integrated into a constructed vehicle or a new floor frame for a converted wheelchair-accessible vehicle prior to the frame being secured to the vehicle body. The wheelchair securement system may be integrated in a way that does not obstruct the wheelchair from maneuvering into the vehicle via the vehicle ramp and within the vehicle as it is positioned into one or more wheelchair securement areas.

The present application relates to wheelchair assembly technical field, specifically is a kind of wheelchair spacer sleeve inner double bearing press fitting device, including mounting bracket, the bottom of mounting bracket is provided with positioning taper column, press fitting seat is slidably installed on mounting bracket, the axis of press fitting seat is on the same straight line with the axis of positioning taper column, the top of mounting bracket is provided with linear driver;Press fitting seat includes shell, the bottom of shell is slidably installed with several inner struts towards the side of positioning taper column, driving unit is arranged in shell, driving unit drives the synchronous movement of inner struts along the radial direction of press fitting seat, shell is supported to the bearing inner ring placed in the bottom of press fitting seat;The working end of linear driver is fixedly installed with lower pressing frame, the present technical solution is that several inner struts are synchronously moved along the radial direction of press fitting seat, the fixation of different size bearings is realized, when resetting, lower pressing frame can drive driving unit to make inner struts automatically release the support to bearing, the automatic operation of bearing fixation and release fixation is realized.