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436results about How to "Simple and compact structure" patented technology

Bionic flapping-wing machine with double-section main wings

InactiveCN103612755ASimple and compact structureIncrease liftOrnithoptersIntelligence gatheringTailplane
The invention discloses a bionic flapping-wing machine with double-section main wings. The bionic flapping-wing machine comprises a driving mechanism, a main bracket, a tail-wing mechanism, a double-section flapping-wing mechanism and two steering machines, wherein the driving mechanism is connected with the front end of the main bracket; the tail-wing mechanism is connected with the rear end of the main bracket; the double-section flapping-wing mechanism is connected to the driving mechanism; the two steering machines are arranged on the main bracket. The bionic flapping-wing machine disclosed by the invention has the following beneficial effects that the structure is simple and compact, the flapping-wing movement with complete symmetry can be realized, the flapping-wing machine can fly like a bird by adopting the double-section flapping-wing mechanism, due to the foldable wings, the resistance of the wings can be small in upwards flapping and the wingspan area can be the largest in downwards flapping, so that large lifting force is generated, and the flying speed and the hang time are increased. In addition, a spherical pair is adopted for connection with the tail-wing mechanism, the direction control of the flapping-wing machine is sensitive and the flapping-wing machine can imitate the flying of the bird. Furthermore, the bionic flapping-wing machine can be applied to the fields of bird repelling of an airport, monitoring, intelligence gathering, disaster rescuing and searching and the like.
Owner:CIVIL AVIATION UNIV OF CHINA

Deep sea ballast releasing device

The invention provides a deep sea ballast releasing device. The device comprises a bracket, wherein the bracket is provided with an electric solenoid component and a two-stage lever releasing component; the electric solenoid component consists of a deep sea electric solenoid and an electric solenoid plunger; the two-stage lever releasing component consists of a first-stage lever and a second-stage lever; the first-stage lever and the second-stage lever can rotate on a vertical plane around a supporting point on respective bracket; the position of the gravity point of the first-stage lever is restrained by one end of the electric solenoid plunger; the force point of the first-stage lever is the gravity point of the second-stage lever; and the force point of the second-stage lever is a ballast suspension point. The first-stage lever is matched with the second-stage lever to obtain a relatively long resistance arm with a relatively small space, and the release of the ballast is controlled by a small power produced after the electric solenoid is electrified, so that the safety and the reliability are achieved. The device has a simple and compact structure, can be used repeatedly and used in full sea depth, has pressure resistance and corrosion resistance, can be reliably carried and release ballast of 100 kilograms, has short response time and is particularly suitable for releasing the ballasts of underwater robots and deep sea engineering machinery.
Owner:HUAZHONG UNIV OF SCI & TECH

Dexterous hand driven by shape memory alloy

The invention discloses a dexterous hand driven by shape memory alloy. The dexterous hand comprises three fingers which are structurally consistent, a palm and a control system. Each finger is composed of distal knuckle bone, a middle knuckle bone and a proximal knuckle bone. Bending and stretching of one whole finger are achieved by finger joints, side sway of the fingers is achieved by the joints among the proximal finger bones, and bending and stretching of the distal knuckle bones are achieved by the joints among the distal finger bones. The three fingers have nine joint freedom degrees totally, and each joint is driven forwardly and reversely by a swinging mechanism composed of two shape memory alloy metal wires. The control system comprises a Windows PC (personal computer), a real-time controller, an I/O (input/output) module, a drive circuit and an angular sensor. The shape memory alloy metal wires are internally disposed in the fingers and the palm of the dexterous hand to directly drive the finger joints, and accordingly a medium drive mechanism is omitted. The dexterous hand is simple and compact in structure, small in size and light in weight and is suitable for being used as an end actuator of a mechanical arm which is light in load to implement dexterous grabbing and precision operation of objects different in shape and size.
Owner:ZHEJIANG UNIV

Robot special for wave compensation and wave compensation method

InactiveCN106240764AIncrease workspace and flexibilitySimple and compact structureProgramme-controlled manipulatorVessel stability improvementSmall armsEngineering
The invention discloses a special robot with a wave compensation function and a wave compensation method, and belongs to the field of offshore ship operation. The front end of a small arm is connected with the rear end of a wrist mechanism, the front end of the wrist mechanism is rigidly connected with an end effector actuator, the rear end of the wrist mechanism comprises a first actuator and a second actuator, the front end of the wrist mechanism comprises a differential mechanism and two supporting arms, and a supporting frame is arranged in the middle of the wrist mechanism and fixedly connected with the front end of the small arm. The left supporting arm and the right supporting arm are fixedly connected to the front lateral sides of the supporting frame, and the differential mechanism is arranged between the two supporting arms. The differential mechanism is composed of four bevel gears, a deflection shaft and two pitching driving shafts, wherein the deflection shaft is vertically arranged, the central line of the first pitching driving shaft and the central line of the second pitching driving shaft are collinear and perpendicular to the central line of the deflection shaft, and the two pitching driving shafts are symmetrically arranged at the left side and the right side of the deflection shaft. The wrist mechanism has three independent freedom degrees so that the robot can have more postures, and rolling, pitching and yawing, caused by wind waves, of a ship can be compensated in real time.
Owner:JIANGSU UNIV OF SCI & TECH

Large angle rotary type joint mechanism of mechanical arm

The invention relates to a large-angle rotary joint mechanism of manipulators, belonging to the technical field of machinery, which is characterized in that, a first steel wire rotary table, a third steel wire rotary table and a first joint shaft are fixedly arranged at the root of a first arm respectively; a second steel wire rotary table a fourth steel wire rotary table and a second joint shaft are fixedly arranged at the root of a second arm respectively; a joint shaft connecting rod is arranged on the first joint shaft and the second joint shaft, which can rotate respectively and freely along the axis of the first joint shaft and the second joint shaft; the first to the fourth wire ropes are respectively wound on the U-shaped grooves of the first to the fourth steel wire rotary table; an 8 shape is formed after being wound, and the tension state is maintained. The large-angle rotary joint mechanism has the advantages that the contradiction between the stiffness of the rotary joint mechanism of the manipulator and the dimension of a rotational angle is solved; a large-angle rotary joint mechanism having an angle ranging from about positive 180 degrees to negative 180 degrees is provided; meanwhile, the joint mechanism has simple and compact structure, neat appearance, light weight, large stiffness, no need of precision parts for manufacturing and processing, low cost, and the like, and application space is large.
Owner:SHANGHAI JIAO TONG UNIV

Automatic on-line pipe bundling device and method

The invention relates to the technical field of equipment and method for packaging of pipes, and in particular relates to an automatic on-line pipe bundling device and method. The device comprises a rack, wherein a pipe collecting unit, a pipe temporary storage unit, a pipe-taking counting unit, a pipe arranging unit and a pipe conveying unit are arranged on the rack, wherein the pipe collecting unit is provided with a first outlet and is communicated with the pipe temporary storage unit through the first outlet; the pipe temporary storage unit is provided with a second outlet through which only one pipe passes and is communicated with the pipe-taking counting unit through the second outlet; the pipe-taking counting unit is used for conveying pipes to the pipe arranging unit one by one and counting the quantity of the pipes. According to the device, the automatic processes of collection and detection of the pipes, arranging and sequencing of the pipes, raising and counting of the pipes, winding and bundling of the pipes, and the like are automatically finished. The device has a simple and compact structure and is small in occupying space; the method for bundling the pipes is high in automation degree and is suitable for popularization and application.
Owner:四川联塑科技实业有限公司

Automatic presser foot lifting and backward and forward sewing device of sewing machine and sewing machine

The invention discloses an automatic presser foot lifting and backward and forward sewing device of a sewing machine. The automatic presser foot lifting and backward and forward sewing device comprises a presser foot lifting driver. A first straight rod of the presser foot lifting driver is connected with one end of a pull rope of a pull rope assembly, and the other end of the pull rope is connected with one end of a swing rod. The other end of the swing rod is in contact with one end of a presser foot lifting rear lever which can swing around the lever axis. A presser foot lifting mechanism is connected with the other end of the presser foot lifting rear lever and can be driven to act through swing of the presser foot lifting rear lever. The automatic presser foot lifting and backward and forward sewing device further comprises a backward and forward sewing driver. A second straight rod of the backward and forward sewing driver is connected with one end of a pull rod, and a swing plate seat is connected with the other end of the pull rod. Backward and forward sewing action can be achieved through swing of the swing plate seat. The automatic presser foot lifting and backward and forward sewing device is simple and compact in structure, convenient to install and maintain, low in manufacturing cost and capable of being in comprehensive application with a traditional presser foot lifting and backward and forward sewing mode. The invention further discloses the sewing machine with the automatic presser foot lifting and backward and forward sewing device.
Owner:ZHEJIANG MAQI SEWING MACHINE

Installing structure for washing machine draining pump

The invention relates to an installing structure for a washing machine draining pump. The installing structure is characterized by comprising a washing machine box body, wherein the bottom of the box body is provided with a lower-front reinforced piece and a washing machine sealing bottom; the draining pump is connected with the washing machine sealing bottom through a main damping cushion; both sides of the lower part of the pump body of the draining pump are provided with support feet; the support feet are provided with openings; two pear-shaped irregularly-shaped holes are formed in the washing machine sealing bottom; a smaller hole of the irregularly-shaped holes is close to the lower-front reinforced piece; the main damping cushion is a revolving body like a Chinese character 'wang', and is provided with an upper groove and a lower groove; the openings of the support feet are clamped in the upper groove of the main damping cushion; the smaller hole of the irregularly-shaped holes in the washing machine sealing bottom is clamped in the lower groove of the main damping cushion; either the front part or the back part of the pump body is connected fixedly. According to the installing structure, the main damping cushion adopting the revolving body like a Chinese character 'wang' is arranged between the pump body and the washing machine sealing bottom, and the front part or the back part of the draining pump is fixedly connected, so that the structure is simple and compact, vibration and noise can be reduced effectively, the production cost is low, and installation is convenient and rapid.
Owner:WUXI LITTLE SWAN ELECTRIC CO LTD

Double-layer vibration isolation chair

PendingCN109532589ASimple and compact structureGood vibration isolationSeat suspension devicesSecondary layerEngineering
The invention discloses a double-layer vibration isolation seat, which comprises a seat surface and a vibration isolation platform arranged below the seat surface, wherein a seat base is arranged below the vibration isolation platform, and is characterized in that: a first-layer vibration isolation structure positioned at the lower layer and a second-layer vibration isolation structure positionedat the upper layer are arranged between the seat base and the vibration isolation platform, wherein the first-layer vibration isolation platform structure comprises vertically arranged vertical damping springs and negative rigidity vibration isolation structure arranged at the front and rear sides of the vertical damping springs, and the second-layer of vibration isolation structure is arranged above the vertical damping spring. The double-layer vibration isolation seat disclosed by the invention is simple and compact in structure and good in vibration isolation effect; the vibration isolationstructure at the bottom layer is connected with the spring damping above in series to form the double-layer vibration isolation structure, so that the damping ratio, the mass ratio and the rigidity ratio can be properly reduced, thereby the vibration isolation performance of the whole double-layer vibration isolation system is improved; meanwhile, the chair has the advantages of low cost, high reliability and comfort, and better application prospect.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE

Revolving drum type micro-filter and sewage treatment method

The invention relates to a revolving drum type micro-filter. The revolving drum type micro-filter comprises a driving device (1), a box body (2), a housing (3), a revolving drum (4), a flushing device (5), a micro filtering net (6) and a dirt discharging groove (9). According to the method for processing sewage, sewage can flow into the hollow revolving drum, due to the action of gravity, the liquid flows towards the outer side of the filtering net from the inner side of the filtering net, and suspended matter in the water is intercepted on the inner side of the stainless steel filtering net; the revolving drum revolves slowly, a flushing water pump of the flushing device extracts the filtered water to conduct back flushing on the filtering net, the flushing water is used for flushing the filtering net from the outer side of the filtering net to the inner side of the filtering net through a nozzle of the flushing device located on the top of the revolving drum, and particulate matter which is flushed away is collected through the dirt discharging groove and is discharged out of the micro-filter through a sewage pipe. The micro-filter is simple and small in structure, small in occupied area, good in treatment effect, convenient to maintain, low in unit treatment cost and more environmentally friendly compared with other filtering devices.
Owner:江阴天汇环保设备有限公司
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