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24424results about How to "Simple structure" patented technology

Nozzle transmission mechanism for 3D printer and 3D printer with same

The invention discloses a nozzle transmission mechanism for a 3D printer. The nozzle transmission mechanism comprises a platform used for holding a workpiece, a mounting seat which is positioned above the platform and is used for fixing a nozzle, more than three transmission components distributed at the periphery of the platform, and a controller used for controlling each driving motor, wherein each transmission component comprises a guide rod which extends along the height direction, a sliding seat arranged on the guide rod in a sliding mode, a driving motor used for driving the sliding seat to move up and down along the guide rod, and a connecting rod; and two ends of the connecting rod are respectively connected with the mounting seat and the sliding seat in a universal hinge mode. Three or more than three guide rods in the vertical direction are arranged only, the sliding seat on the guide rods is driven by the motor, the nozzle is driven to move in the height direction and the horizontal direction through differential motion among the sliding seat, and compared with the conventional three-axis association transmission mechanism, the nozzle transmission mechanism has the advantages of simple structure, small occupied space, high operating precision and the like, the 3D printing efficiency can be improved, and the defective percentage of the workpiece is reduced.
Owner:J H TECH ELECTRONICS GZ LTD

Four-freedom-degree single-action platform parallel mechanism capable of achieving motion of selective compliance assembly robot arm (SCARA)

ActiveCN102922513ASimple structurerelatively simple kinematics
The invention relates to a four-freedom-degree single-action platform parallel mechanism capable of achieving motion of a selective compliance assembly robot arm (SCARA) and belongs to the technical field of parallel robots. The four-freedom-degree single-action platform parallel mechanism comprises a movable platform, a fixed platform, a first branched chain, a second branched chain, a third branched chain and a fourth branched chain, wherein an actuator is installed on the movable platform, and the first branched chain, the second branched chain, the third branched chain and the fourth branched chain are connected between the movable platform and the fixed platform and have the same structure. The first branched chain, the second branched chain, the third branched chain and the fourth branched chain all contain movement pairs in active driving. The first branched chain, the second branched chain, the third branched chain and the fourth branched chain are respectively connected with the movable platform and the fixed platform to form a space parallel closed-loop mechanism, the space parallel closed-loop mechanism drives the movable platform to move through four input moving parts, and three-dimensional translational motion and one-dimensional rotation motion in a space are achieved. The parallel mechanism has the advantages of being simple in structure and relatively simple in kinematics, and the structural characteristics of a single platform are favorable for achieving high-speed and high-accelerating dynamic response characteristics.
Owner:TSINGHUA UNIV

Feeding device of sorter of batteries plate

InactiveCN101357717ASimple structurecooperate well
The invention discloses a battery electrode sorting machine sheet conveying device, consisting of a material conveying platform, a vertical material bin, a material feeding pushing plate and a reciprocating swing sheet conveying mechanism; the vertical material bin is arranged above the middle part of the material conveying platform; the material conveying pushing plate is arranged at the rear part of the vertical material bin of the material conveying platform; the material conveying pushing plate is pushed by a material conveying cylinder and can slide forwards and backwards; the batter electrodes which are piled at the bottom of the vertical material bin are sent into the sheet taking positions of the reciprocating swing sheet conveying mechanism; the reciprocating swing sheet conveying mechanism is arranged above the front part of the material conveying platform; the battery electrodes piled at the sheet taking positions are sent to a feeding working position of the battery electrode sorting machine one after another. The battery electrode sorting machine sheet conveying device of the invention has simple structure, can quickly, exactly and safely send the battery electrodes into the inlet of the sorting machine one after another, and realizes the high-efficiency matching of the battery electrode sorting machine, thus ensuring that the battery electrode sorting machine sufficiently exerts the working efficiency.
Owner:NANJING NORMAL UNIVERSITY

Emergency parachuting device and method for multiple-rotor unmanned aerial vehicle

InactiveCN103895870Aavoid aircraft crashSimple structure
The invention discloses an emergency parachuting device and method for a multiple-rotor unmanned aerial vehicle. The device comprises a measurement and control unit, an unlocking steering engine, a parachute-throwing spring, a latch, a parachute and a magnetic latching relay, wherein the measurement and control unit, the unlocking steering engine, the parachute-throwing spring, the latch, the parachute and the magnetic latching relay are installed in a parachute bin. The measurement and control unit comprises a microcontroller and an inertia movement measurement unit, wherein the microcontroller is electrically connected with the unlocking steering engine and the magnetic latching relay; the unlocking steering engine is connected with the latch through a rocker arm, and the magnetic latching relay is used for connecting or disconnecting a power supply of a rotor motor; the parachute bin is fixed to the multiple-rotor unmanned aerial vehicle, one end of the parachute-throwing spring is fixed to the bottom of the parachute bin, and the parachute is arranged at the other end of the parachute-throwing spring. The method includes the following steps that the current instant height and acceleration of the unmanned aerial vehicle are acquired, the dropping rate of the unmanned aerial vehicle is worked out, whether the unmanned aerial vehicle flies under a dangerous dropping state or not is judged, and if yes, the power supply of the rotor motor is disconnected, and the parachute is thrown out to make the unmanned aerial vehicle safely land. The emergency parachuting device has the advantages of being simple in structure, low in cost, light in weight, high in reaction speed and the like.
Owner:SOUTH CHINA AGRI UNIV +1

Automatic washing and dewatering combined device of rotary type mop

InactiveCN102370447Areduce volumeSimple structure
The invention relates to an automatic washing and dewatering combined device of a rotary type mop, which comprises the rotary type mop and a washing and dewatering barrel, wherein the washing and dewatering barrel contains a barrel body, a dewatering basket and a lifting and fixing device of the dewatering basket, the lower part of the barrel body is provided with a washing area, the upper part of the barrel body is provided with a dewatering area, and the dewatering basket is arranged in the barrel body; the lifting and fixing device of the dewatering basket is arranged in the barrel body and is also connected with the dewatering basket, and the dewatering basket rotates around a main shaft of the lifting and fixing device of the dewatering basket; when the mop is washed, the dewatering basket is positioned in the washing area at the lower part of the barrel body; and when the mop is dewatered, the dewatering basket is lifted into the dewatering area at the upper part of the barrel body by the lifting and fixing device of the dewatering basket. By the device, the functions of washing and dewatering are integrated according to the design of human body mechanics. The device has the characteristics of small washing and dewatering volume, simple and scientific structure, small water consumption, low manufacturing cost, safe and convenient operation, strong practicability, attractive appearance and the like, and the time and the labor are saved.
Owner:上海祥美网络科技有限公司 +1

Controllable damping force hydraulic shock absorber

ActiveUS20060225976A1simple structure
The present invention provides a controllable damping force hydraulic shock absorber comprising a pilot type damping valve having a back-pressure chamber for each of an extension stroke and a compression stroke, which has a simple structure. A piston connected to a piston rod is fitted into a sealed cylinder in which a hydraulic fluid is contained. During an extension stroke of the piston rod, the hydraulic fluid in an upper cylinder chamber flows to a lower cylinder chamber through an extension-side hydraulic fluid passage, an extension-side orifice hydraulic fluid passage, an extension-side back-pressure chamber, an axial hydraulic fluid passage, a radial hydraulic fluid passage, a compression-side back-pressure chamber, an extension-side check valve and a compression-side hydraulic fluid passage. During a compression stroke, the hydraulic fluid in the lower cylinder chamber flows to the upper cylinder chamber through the compression-side hydraulic fluid passage, the compression-side orifice passage, the compression-side back-pressure chamber, the radial hydraulic fluid passage, the axial hydraulic fluid passage, the extension-side back-pressure chamber, the compression-side check valve and the extension-side hydraulic passage. The hydraulic fluid passage for an extension stroke and the hydraulic fluid passage for a compression stroke have some elements in common, thus simplifying a structure of the controllable damping force hydraulic shock absorber.
Owner:HITACHI ASTEMO LTD

Electric pressure cooker with cover being conveniently opened

ActiveCN106923655Aeasy to useSimple structure
The invention provides an electric pressure cooker with a cover being conveniently opened. The cooker comprises a cooker body, a cooker cover and a buckling part. The buckling part comprises a movable clamping part arranged on the cooker cover and a fastener located on the cooker body. The cooker cover is buckled with the cooker body through the buckling part. The cooker cover comprises a lining and a lock cover located below the lining. The lock cover rotates so that the lock cover and the cooker body are locked and unlocked. The cooker cover is further provided with a cover-opening assembly which drives the locking cover to rotate. The lock cover is provided with an unlocking part. When the cover-opening assembly drives the lock cover to rotate at the first set position, the lock cover and the cooker body are unlocked. When the cover-opening assembly drives the lock cover to continuously rotate at the second set position, the fastener is acted upon the movable clamping part. The movable clamping part is separated from the fastener such that the cooker cover is opened. The rotation angle at which the lock cover rotates from the first set position to the second set position is Alfa. The cooker cover is provided with an elastic device driving the lock cover to rotate. After the cooker cover is opened, the elastic device drives the lock cover to rotate at the angle of Beta which is less than Afla. The electric pressure cooker with the cover being conveniently opened facilitates opening the cover.
Owner:JOYOUNG CO LTD

Electric pressure cooker with cover closing detector

The invention discloses an electric pressure cooker with a cover closing detector. The electric pressure cooker comprises a pressure cooker body and a pressure cooker cover; the pressure cooker coveris arranged in the top of the pressure cooker body, handle rods are arranged symmetrically in the left and right sides of the pressure cooker body and fixedly connected to the pressure cooker body, the front side of the pressure cooker body is provided with a control panel, an indicating lamp is arranged in the left upper portion of the control panel, and a warning loudspeaker is arranged in a right upper portion of the control panel; and the top of the pressure cooker cover is provided with a fixed protruded column, the fixed protruded column is fixedly connected with the pressure cooker cover, the bottom edge of the pressure cooker cover is provided with touch protruded columns, and cover closing detection assemblies are arranged below the touch protruded columns respectively. The coverclosing detection assemblies are additionally arranged in the pressure cooker body, and the pressure cooker cover is provided with the corresponding touch protruded columns, and in the contact processof the cover closing detection assemblies and the touch protruded columns, whether the cooker is closed is warned and detected; and the electric pressure cooker is simple in the whole structure and strong in functions.
Owner:黄文才
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