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38 results about "Free movement" patented technology

Multi-planar rotational platform and suspension device

The present invention relates to a device which enables a selective therapeutic exercise regimen by providing a tensioning mechanism attached to a rotatable platform along with the unique feature is where two trollies on curved rails operating on X-axis and Y-axis when pressure is applied, will work in unison to travel in any desired direction creating a unique spherically rotational reaction. The platform will react to changes in the operator's weight shifts and center of gravity placed upon it. When this novel multi-rational aspect of the platform responds to subtle changes in the operator's center of gravity, movement of the platform will occur. These changes trigger muscular contractions around the joints of the operator responding to the rotation of the platform while the tensioning mechanism allows for selective resistance to the free movement of the platform enabling selective exercise and therapy routines for various muscle groups. Additionally, the present Multi-Planar Rotational Platform and Suspension Device offers easy scalability and uniform or non-uniform scaling in the X-axis, the Y-axis and / or the Z-axis.
Owner:CARR OLDEN

Plane free movement revolving stage wagon for stage performance

The embodiment of the invention discloses a plane free movement revolving stage wagon for stage performance, and particularly relates to the technical field of stage performance equipment. The plane free movement revolving stage wagon comprises a stage wagon frame, wherein a fixing revolving stage frame is fixedly arranged inside the stage wagon frame, a rotating revolving stage frame is arrangedinside the fixing revolving stage frame, a first fixing frame is fixedly arranged on one side of the interior of the rotating revolving stage frame, a second fixing frame is fixedly arranged on the other side of the interior of the rotating revolving stage frame, and a connecting support is fixedly arranged between the two ends of the first fixing frame and the second fixing frame, and a driving shaft is movably arranged between the middle parts of the first fixing frame and the second fixing frame. According to the plane free movement revolving stage wagon, the movement of the stage wagon frame is realized through a driving wheel, a direction adjusting wheel is used for pushing a direction adjusting frame, the direction adjusting frame pushes the rotating revolving stage frame to rotate around the center of the rotating revolving stage frame, the rotating revolving stage frame adjusts the traveling direction of the driving wheel, namely, the traveling direction of the stage wagon frame is adjusted, the revolving stage rotates conveniently, a stage wagon moves conveniently, and the stage performance effect is enhanced.
Owner:ZHEJIANG DAFENG IND

An exoskeleton-type 15-degree-of-freedom rehabilitation manipulator mechanism

The invention discloses an exoskeleton type 15-degree-of-freedom rehabilitation manipulator mechanism, and relates to the field of rehabilitation robots. The exoskeleton type 15-degree-of-freedom rehabilitation manipulator mechanism comprises a base, a four-finger bending mechanism unit, a four-finger swinging mechanism unit, a thumb bending mechanism unit, a thumb swing mechanism unit, a wrist bearing unit and a driving unit. The rehabilitation mechanism has 15 degrees of freedom of joint rotation in total. PIP joints and MP joints of a thumb and four fingers each have one independent rotational degree of freedom. The MP joints of the four fingers each further have one independent swinging degree of freedom. A CM joint of the thumb has one swinging degree of freedom. The exoskeleton type15-degree-of-freedom rehabilitation manipulator mechanism achieves the function of full freedom of motion of each joint of a palm, which fails in existing finger rehabilitation mechanisms. Full freedom of movements of all of the fingers, except the PIP joints of the four fingers can be achieved. The exoskeleton type 15-degree-of-freedom rehabilitation manipulator mechanism can be applied to activerehabilitation therapy in the later period of rehabilitation therapy, so as to achieve independent and free motion of all of the joints of the fingers of a patient.
Owner:北可精密机械(上海)有限公司

Foldable scooter

PendingCN107303927AQuick foldSacrifice folding timeFoldable cyclesSelf limitingSlide plate
The invention aims to provide a foldable scooter. A foldable rear plate is parallel to a head pipe; front and rear wheels are gathered at one end; a handle is arranged at the other end; in a carrying process, a user can hold the handle by hand and can pull the wheels to move on the ground, so that the clothes can be prevented from being dirty, the weight of the scooter can be overcome and the scooter can be easily carried. The technical scheme adopted for solving the technical problem is that a self-limiting hinge is adopted for realizing the quick folding and unfolding of the scooter. The foldable scooter is composed of a faucet assembly, a foldable hinge, a plate body and a rear wheel; the front part of the foldable hinge is connected with a faucet head pipe while the rear part is connected with the front end of a plate bracket; the rear wheel is arranged at the rear end of the plate bracket; the foldable hinge is the key point for realizing the folding function thereof; a connecting corner point of the foldable hinge and the plate bracket is downward self-limited on the horizontal position of the plate body and is capable of upward freely moving; an unfolding angle of the foldable hinge and the faucet head pipe is self-limited on a fixed position of 'front wheel end of the head pipe located on forward vertical position within 0-15 degrees'; the front and rear wheels are gathered at one end under a folded state.
Owner:吴结华

Twisted-pair-driving-based tensioned flexible ankle joint wearing boosting equipment

ActiveCN112370314ARealize energy storage functionAvoid joint damageWalking aidsFoot regionDorsal flexion
The invention provides twisted-pair-driving-based tensioned flexible ankle joint wearing boosting equipment. The boosting equipment comprises a foot region supporting plate, a flexible joint made froma soft material and a rigid element, an ankle wearing assembly connected with the flexible joint and a twisted line driving part for driving an ankle joint to move, wherein the flexible joint is composed of a limiting rod fully encapsulated in the soft material and a rigid connecting member fully encapsulated in the soft material, and the twisted line driving part is composed of a motor, a gear transmission system and a twisted pair. According to the ankle joint boosting mechanism, two fine lines are driven to twist mutually through the motor so as to form a dual-spiral structure through pre-twisting, muscle-similar stretching and tensioning motions are achieved through tightness of twisting, and then, a wearer is assisted to walk. According to the boosting equipment, free motions in dorsal flexion, plantar flexion, intorsion and extorsion directions can be achieved through the purpose-made flexible joint, twisted-pair structures at two sides are driven by one motor to simultaneouslyachieve double-sided stretching and tensioning functions, and a safe protecting function for the ankle joint can be provided.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Position control method of teleoperation system for master robot and slave robot

The invention relates to the technical field of teleoperation control of robots, in particular to a position control method of a teleoperation system for a master robot and a slave robot. The positioncontrol method of the teleoperation system for the master robot and the slave robot includes the following steps that a, teleoperation is divided into the free movement stage and the interactive movement stage; b, the quick control mode is used in the free movement stage, specifically, the position component Xv of the slave robot is set as 0, and the position proportional coefficient kx is set according to the movement range of the master robot and the slave robot; and c, the fine control mode is used in the interactive movement stage, specifically, the position proportional coefficient kx issmaller than or equal to 1. The method has the beneficial effects as follows: the teleoperation movement position control precision is improved while high-degree covering of the working space of themaster robot and the working space of the slave robot is guaranteed; further, the control safety can be guaranteed effectively through introduction of the feedback guiding force; and the control system is low in cost, and the control flow is simple and effective.
Owner:XIHUA UNIV

Gait training method and device for lower limb rehabilitation robot and lower limb rehabilitation robot

The invention provides a gait training method and device for a lower limb rehabilitation robot and the lower limb rehabilitation robot. The method comprises the steps that: obtaining virtual channel parameters and reference movement tracks corresponding to a user; determining a gait cycle reference value of the current moment according to the current moment and the gait cycle; constructing a virtual channel according to the gait cycle reference value at the current moment and the virtual channel parameters; calculating a force field acting force according to the position of the lower limb joint angle at the current moment relative to the virtual channel; controlling the lower limb rehabilitation robot to train according to the force field acting force. According to the invention, the virtual channel can be constructed in the lower limb joint space, force control is performed through the force field, the lower limb joints of the patient can freely move in the virtual channel, the movement limitation of the rehabilitation robot on the patient can be reduced, a certain free movement space is provided for the patient, the patient can be promoted to actively participate in rehabilitation training. The gait training method and device are suitable for rehabilitation of patients in middle and later periods with better training effect.
Owner:SHENZHEN WISEMEN MEDICAL TECH CO LTD

Multi-fingered dexterous hand admittance control method based on extended state observer

The invention discloses a multi-fingered dexterous hand admittance control method based on an expansion state observer. The method specifically comprises the following steps of regarding the connecting rod dynamics and friction part of a dexterous hand as interference, carrying out the real-time estimation of the interference through an expansion state observer in a free motion state of the dexterous hand, and building a dexterous hand interference model query table, and obtaining interference torques corresponding to different speeds and angles in the free state of the dexterous hand; comparing the interference torque difference value when the dexterous hand grabs an object with the interference torque difference value when the dexterous hand freely moves, and calculating the corresponding contact torque; and realizing the dexterous hand stably grabbing the object by controlling the dynamic relation between the dynamic adjusting force and the position through admittance. According to the multi-fingered dexterous hand admittance control method based on the extended state observer, the external contact force can be accurately detected without a force/sensor, the real-time performance is good, the sensitivity is high, and the manufacturing period and cost of the dexterous hand are greatly reduced.
Owner:BEIHANG UNIV

Rope-driven flexible double-joint bionic crab and control method

The invention provides a rope-driven flexible double-joint bionic crab and a control method, and relates to the field of bionics. The device comprises legs, a body and a shell. Relaxation is achieved through a PC board, and supporting is achieved through PLA; free movement of the bionic crab on the soft ground is achieved through synchronous and coordinated driving of the four ropes, and a new bionic thought is provided for effective exploration and monitoring of complex environments such as mud flat. A plurality of sensors are carried to collect environmental data; an AI program is built through a TensorFlow machine learning model, and off-line intelligent voice control is achieved; the gesture recognition module can recognize gestures and execute commands according to the gestures; detection of temperature, humidity, air pressure, light intensity, sound intensity, magnetic field (direction), TVOC and CO2 and acquisition of images can be realized; the defects that traditional bionic crab sportswear is numerous and mechanical structures are difficult to adjust are emphatically overcome, the functions of the sportswear are enriched on the basis of simplifying the manufacturing process and reducing the manufacturing difficulty, and the applicability of cooperation and co-fusion of the sportswear and people is improved.
Owner:东北大学秦皇岛分校
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