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934 results about "Soft body" patented technology

EMG controlled air-operated soft body rehabilitative mechanical hand

The invention discloses an EMG controlled air-operated soft body rehabilitative mechanical hand. The mechanical hand can help a stroke patient or a patient suffering from hand disability conduct hand rehabilitation activity. Different from a traditional rigid body type mechanical hand, every finger of the soft body mechanical hand is a hollow cavity structure composed of soft materials (super-elastic materials like silicone rubber and the like), a fiber and a limit strained layer is arranged on the periphery, soft body fingers are designed by combining structures of bending distortion, extending distortion, distortion, torsional and extending distortion, and motion distortion is achieved through air-operated driving. The EMG controlled air-operated soft body rehabilitative mechanical hand can achieve multi-section type bending similar to human's fingers, drives bending and stretching of stroke fingers, and restores a patient's athletic ability. The air-operated soft body rehabilitative mechanical hand has the advantages of low rigidity, high safety, high comfort, low weight, low noise and the like, has more remarkable superiority compared with current traditional mechanical rigid body type rehabilitative hand, and has very wide application prospect in the field of rehabilitation.
Owner:XI AN JIAOTONG UNIV

Variable-rigidity soft body driver, soft body arm and soft body platform based on blocking principle

The invention discloses a variable-rigidity soft body driver, soft body arm and soft body platform based on a blocking principle. A vacuum pump and a unit module are included. The unit module comprises an inner flexible framework, gas pipes, an outer flexible layer, a blocking mechanism, a deformation plug and a blocking plug. The inner flexible framework comprises a center through hole and deformation holes evenly distributed in the circumferential direction. The blocking mechanism is fixed in the center through hole and comprises supporting frameworks, elastic connection ropes, large ball particles, small ball particles, tightening springs and a sealing thin film. The elastic connection ropes sequentially penetrate symmetry centers of all the supporting frameworks. A containing cavity isformed between every two adjacent supporting frameworks. The containing cavities are filled with the large ball particles and the small ball particles. The corresponding gas pipes are arranged in theblocking mechanism and each deformation hole correspondingly. The other end of each gas pipe is connected with the vacuum pump. The variable-rigidity soft body driver, the soft body arm and the softbody platform have excellent adaptive capacity to the environment, and by means of the variable-rigidity principle, large flexibility can be achieved, and large rigidity can also be achieved.
Owner:NANJING UNIV OF POSTS & TELECOMM

Joint type internal skeleton pneumatic soft hand claw

The invention discloses a joint type internal skeleton pneumatic soft hand claw. The joint type internal skeleton pneumatic soft hand claw comprises a central palm part, a plurality of soft-body tentacles fixed to the periphery of the central palm part; each soft-body tentacle part comprises a plurality of joint parts which are connected in sequence; each joint part comprises an elastic telescopiclayer and a plurality of supporting bone parts which are uniformly distributed in the elastic telescopic layer; an inner cavity of the elastic telescopic layer is supported by the supporting bone parts, the inner cavity is connected with the elastic telescopic layer, the supporting skeleton parts are hinged; an air hole is formed in the middle of the supporting skeleton part; the front end of thejoint part is provided with a fingertip bone part which is hinged to the support bone part; a finger bone part is arranged at the rear end of the joint part and is hinged to the supporting bone part;a connecting bone part is arranged between every two adjacent joint parts and is hinged to the supporting bone part; the air holes are formed in the connecting bone part and the finger bone part; andthe connecting bone part and the finger bone part are independently connected with an air pipe; the inner part of the elastic telescopic layer is filled with a plurality of circles of fiber restraintlayers, and the constraint layers correspond to the outside of the gas chamber. According to the joint type internal skeleton pneumatic soft hand claw, the rigidity and the grasping capacity of the tong are improved.
Owner:NANJING UNIV OF SCI & TECH

Pneumatic soft body gripper

The invention provides a pneumatic soft body gripper. The pneumatic soft body gripper comprises pneumatic soft body drivers and a clamping device; the pneumatic soft body drivers are of hollow columnar structures with air cavities, the cross sections are semi-circular, the three pneumatic soft body drivers are evenly distributed according to the circumference to form the gripper, one end of each pneumatic soft body driver is fixed to the clamping device which is designed in an auxiliary manner, under the air pressure effect, the free end can generate bending action facing the round center direction, and the three pneumatic soft body drivers are in coordination to achieve gripping task. Compressibility of gas and elasticity of the soft body drivers enable the gripper to have the good characteristic of grabbing fragile items in a non-damage manner. Due to the clamping device designed in the auxiliary manner, a gas source is connected into the pneumatic soft body drivers, the soft body gripper is fixed to the tail end of a mechanical arm, the soft body gripper only needs to have two states of inflation and deflation to achieve grabbing and releasing of the items, and the pneumatic soft body gripper is simple in structure, high in self-adaptation capacity, simple in control, low in cost, high in generality and suitable for automation work of small fruit and vegetable picking, dailysmall object classified storage and the like.
Owner:SHANGHAI JIAO TONG UNIV

Rigidity-variable soft body mechanical hand

The invention discloses a rigidity-variable soft body mechanical hand, which consists of one or a plurality of execution units, wherein each execution unit comprises a deformation part and a rigidityregulating part; the deformation part mainly consists of a soft base body and peripheral restraint fiber; the rigidity regulating part is mainly a medium layer with a built-in rigidity regulating medium; a base body is of a flexible hollow tubular structure made of silica gel synthetic materials; two groups of inextensible fiber (wire materials) wound according to a certain angle are arranged at the outer side of the base body. The rigidity regulating part is arranged at the outer side of the base body; the rigidity regulating medium is built in the rigidity regulating part; the rigidity regulating part is subjected to vacuum pumping; the medium contact area is increased, so that the friction change is caused, and the rigidity is further changed. The soft body base body is driven by air pressure or hydraulic pressure; the rigidity regulating part is driven by using a negative pressure device; through the matching of the deformation part and the rigidity regulating part, the goal that the soft body mechanical hand realizes both the rigidity feature and softness feature is achieved; the operation efficiency is high; meanwhile, high safety during the interaction of external operationobjects and operation environment can be ensured.
Owner:NANJING FORESTRY UNIV
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