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162results about How to "Small size when folded" patented technology
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Large spatial assembly type antenna reflector modular unit and assembly method thereof
ActiveCN102173312AImprove reliabilityHigh storage ratioCosmonautic vehiclesCosmonautic partsModular unitComputer module
The invention discloses a large spatial assembly type antenna reflector modular unit and an assembly method thereof. The modular unit comprises a hexagonal extensible truss, a reflecting rope net and a rope connecting device, wherein the hexagonal extensible truss comprises top hinges, a synchronous power hinge, annular rods, and middle slanting poles; two annular rods with the same length form asynchronous folding rod through the synchronous power hinge, and the synchronous power hinge is connected with two middle slanting poles through three top hinges to form a planar triangle structural unit; 12 planar triangle structural units are connected with one another by sharing the middle slanting poles and the top hinges to form a ring, namely the truss of the antenna reflector modular unit;during connection, synchronous folding rods of two adjacent triangle structural units are spatially staggered with each other, and two layers of hexagons with different sizes and staggered vertexes are formed spatially; the reflecting rope net comprises a metal net for reflecting electromagnetic waves and an adjusting rope for adjusting the shape surface of the metal net; the metal net is sewed on the adjusting rope which is fixed with the truss of the modular unit through the top hinges; and the rope connecting device is mainly used for connecting and fixing the reflecting rope net and the hexagonal extensible truss.
Owner:XIAN INSTITUE OF SPACE RADIO TECH
Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms
ActiveCN104022337ARealize modular expansionRealize modular productionCollapsable antennas meansComputer moduleSatellite
The invention relates to an antenna mechanism, in particular to a modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms. The modular spatial curved surface folding and unfolding antenna mechanism aims to solve the problems that an existing unfolding-type parabolic cylinder antenna structure is low in molded surface precision, poor in stability and low in integral rigidity, an umbrella-shaped antenna structure is not suitable for reflecting surface stretch forming, and a truss antenna structure capable of being unfolded only can be unfolded unidirectionally but a parabolic cylinder can not be formed. The modular spatial curved surface folding and unfolding antenna mechanism comprises two speed-controlled motors, two longitudinal connection rib mechanisms, two folding and unfolding connection mechanisms, a plurality of transverse connection rib mechanisms, a plurality of single rib mechanisms, a plurality of single modular folding and unfolding mechanisms, a plurality of tensioning pull ropes and a plurality of modular connection mechanisms. Two transverse outer side supporting frames are arranged between the two longitudinal connection rib mechanisms in parallel and are respectively formed by connecting multiple transverse connection ribs in series, and the two folding and unfolding connection mechanisms, the single modular folding and unfolding mechanisms and the single rib mechanisms are arranged in the supporting frames. The modular spatial curved surface folding and unfolding antenna mechanism is applied to satellites, space stations and space probes.
Owner:HARBIN INST OF TECH
Inflating expanded truss for outer space use
The present invention relates to one kind of inflating expanded truss for outer space use. The inflating expanded truss includes at least three inflating expanded pipes and several thermosetting support rods. Each of the inflating expanded pipes consists of one inner lining layer and one outer thermosetting layer. Each of the thermosetting support rods is connected between two inflating expanded pipes. After being launched to preset space orbit, the inflating expanded pipes are inflated and the truss structure is expanded to fixed shape and hot cured via absorbing sun radiation, so as to obtain designed rigid truss. The present invention needs no outer space assembling and has the advantages of small folded volume, high expanding reliability, light weight, etc and thus wide aeronautic and astronautic application foreground.
Owner:HARBIN INST OF TECH
Child cart seat with armrest capable of being folded in linkage mode
PendingCN107117199AEasy to fold and operateSmall size when foldedCarriage/perambulator with multiple axesEngineeringHandrail
The invention discloses a child cart seat with an armrest capable of being folded in a linkage mode. The child cart seat comprises a backrest, a seat part and the armrest. Backrest rotating seat bodies are arranged at the lower ends of the left side and the right side of the backrest correspondingly, seat part rotating seat bodies are arranged at the rear ends of the left side and the right side of the seat part correspondingly, and armrest rotating seat bodies are arranged at the rear ends of the left side and the right side of the armrest. The backrest rotating seat body, the seat part rotating seat body and the armrest rotating seat body of the left side are sequentially mutually connected in a pivotal mode, and the backrest rotating seat body, the seat part rotating seat body and the armrest rotating seat body of the right side are sequentially mutually connected in the pivotal mode. The seat further comprises a left armrest linkage folding mechanism and a right armrest linkage folding mechanism, so that when the seat is folded, the armrest does not need to be dismounted, the armrest is folded in the linkage mode along with the backrest till the backrest, the armrest and the seat part are folded together, thus folding operation is convenient, and the volume after folding is small.
Owner:SHANGHAI BABYSING MATERNAL & CHILD SUPPLIES CO LTD
Foldable tricycle for children and folding method of foldable tricycle
Owner:JIAXING XIAOHUZI BIKE FACTORY CO LTD
Stand of a display device
InactiveCN1992092AEasy to adjustSimple structureTelevision system detailsInstrument housingDisplay deviceEngineering
Provided is a stand of a display device that can be reduced in its volume and allows a user to adjust a position of a display device more conveniently. The stand of a display device includes: a sliding unit for vertically moving a display device, the sliding unit mounted on the display device; a base unit for supporting the display device; and a hinge connection unit having a first end pivotally coupled to the sliding unit and a second end pivotally coupled to the base unit.
Owner:LG ELECTRONICS INC
Satellite-borne deployable mesh antenna
ActiveCN109818151AHigh precisionLightweight structureCollapsable antennas meansAntenna adaptation in movable bodiesMicrowaveThermal deformation
The invention discloses a satellite-borne deployable mesh antenna. The satellite-borne deployable mesh antenna comprises an antenna reflecting surface extending arm (1), an antenna reflecting surfacedeployable supporting assembly (2) and a cable net structure (3). The antenna reflecting surface extending arm adopts a carbon fiber composite material hollow round rod design, so that the weight of the extending arm and the in-orbit thermal deformation of the extending arm are reduced, and the antenna pointing accuracy is ensured. The antenna reflecting surface deployable supporting assembly (2)is composed of module units, can be increased or decreased according to the aperture requirement of the antenna reflecting surface, and is high in expandability. The cable net structure is designed ina multi-layer cable net mode, ground adjustment of the profile precision of the reflecting surface is achieved, and the requirement of microwave antenna detection for the profile precision of the reflecting surface is met. According to the invention, factors such as antenna emission folding and in-orbit unfolding, antenna reflecting surface function and performance testing and antenna reflectingsurface profile precision adjusting are comprehensively considered for design, and the requirement of satellite in-orbit ground detection can be met.
Owner:SHANGHAI SATELLITE ENG INST
Underactuation self-adaptive capturing device capable of being folded and unfolded
ActiveCN103934829ASame structureImprove interchangeabilityGripping headsToolsUnderactuationGear wheel
The invention relates to a capturing device, in particular to an underactuation self-adaptive capturing device capable of being folded and unfolded. The underactuation self-adaptive capturing device capable of being folded and unfolded aims to solve the problems that an existing space robot is high in weight, complex in structure and poor in reliability and is provided with a great number of driving motors. According to the underactuation self-adaptive capturing device capable of being folded and unfolded, a single-finger root joint shaft is arranged on the upper surface of one end of a substrate, a two-finger root shared joint shaft is arranged on the upper surface of the other end of the substrate, a driving assembly is arranged on the lower surface of the substrate, a first transmission shaft is arranged on the lower surface of the substrate through a first bearing block, the single-finger root joint shaft is sleeved with a first synchronous belt wheel, the first transmission shaft is sleeved with a second synchronous belt wheel, the first synchronous belt wheel is connected with the second synchronous belt wheel through a synchronous belt, the middle of the two-finger root shared joint shaft is sleeved with a first gear, and the first gear is connected with the driving assembly. The underactuation self-adaptive capturing device capable of being folded and unfolded is used for the aerospace field.
Owner:HARBIN INST OF TECH
Folding skateboard bag
InactiveCN103507895ASeamless connectionSmall size when foldedLuggageFoldable cyclesElectric machineryStructural engineering
The invention discloses a folding skateboard bag which is a complementing type transportation tool, wherein the folding skateboard bag comprises a folding pedal, a case, rolling wheels, a guide mechanism, a brake system, a motor, a battery and a motor control system. The folding skateboard bag integrates portability, passing ability and economy, the case is designed into a commuting tool which is low in weight, high in strength, and capable of being folded easily, being carried indoors and into other transportation tools, the seamless combination of individual slow traffic, public transport and a destination is achieved, a user can go out flexibly, and the problem of a last mile is solved.
Owner:罗轶
Pod-shaped support rod throw-away deployment mechanism
ActiveCN107628270AAchieving multi-point connection capabilitySmall size when foldedCosmonautic vehiclesCosmonautic partsEngineeringMechanical engineering
A pod-shaped support rod throw-away deployment mechanism includes a roller assembly, a frame, a deployment drive device, guide devices, a plurality of groups of throw-away devices and thrust devices.The roller assembly, the deployment drive device and the guide devices are sequentially arranged on the frame. The plurality of groups of throw-away devices are sequentially slidably connected to theguide devices. The thrust devices are mounted on the frame. A pod-shaped support rod is wound on the roller assembly. The deployment drive device drives the pod-shaped support rod to extend to the outer side of the frame. When the throw-away devices are squeezed by the guide devices, the throw-away devices reach the face of the pod-shaped support rod. When the pod-shaped support rod is moved froma predetermined specific position to below the throw-away devices, the throw-away devices are locked to the pod-shaped support rod and moves with the pod-shaped support rod to the outer side of the frame until the throw-away devices are detached from the frame. Through the plurality of groups of throw-away devices and the pod-shaped supporting rod, the pod-shaped supporting rod can have a multi-point connection capability.
Owner:SHANGHAI AEROSPACE SYST ENG INST
Three-structure-state transformation space deployable mechanism based on scissor units
ActiveCN109119739ARealize space folding movementMeet different topological requirementsCollapsable antennas meansEngineeringComponent type
The invention relates to a three-structure-state transformation space deployable mechanism based on scissor units. The three-structure-state transformation space deployable mechanism based on scissorunits is formed by scissor units, hinges and chassises, wherein the scissor units can be converted into a first structure-state, a second structure-state or a third structure-state through unfolding or furling; the first structure-state is a triangular prism structure-state; the second structure-state is a quadrangular structure-state; the third structure-state is a pentagonal prism structure-state; the hinges include a double-revolute-pair hinge and a three-revolute-pair hinge; and one end of the double-revolute-pair hinge is connected with the chassises through pins, and the other end of thedouble-revolute-pair hinge is connected to the scissor units through pins. The three-structure-state transformation space deployable mechanism based on scissor units has the advantages of being lightin weight, being single in the component type, being large in the folding ratio, being small in the furled volume, being stable in mechanism deploying, and having variable three structure states, being able to be used as a polygonal space folding unit, and being suitable for an aerospace support frame and a planar transmitting antenna.
Owner:GUANGXI UNIV
Folding baby carriage frame
ActiveCN102632917ASimple structureSmall size when foldedCarriage/perambulator with multiple axesVehicle frameAgricultural engineering
The invention discloses a folding baby carriage frame which is characterized by comprising a left front frame, a right front frame, a left rear frame, a right rear frame, a bottom intersection folding frame, a rear folding frame, a left handrail frame, a right handrail frame, a left connecting rod, a right connecting rod and a control device, wherein the control device is arranged on the left handrail frame and the right handrail frame and used for controlling the frame to be unfolded and folded. The folding baby carriage frame aims to overcome the shortcomings in the prior art, has a simple structure, can be folded in two directions and is small in folded size and convenient to store, carry and use.
Owner:GUANGDONG ROADMATE GRP
Fracture patient rescue robot
InactiveCN103083142AThe folded volume to unfolded volume ratio is minimizedReduce volumeAmbulance serviceSix degrees of freedomFirst aid
The invention discloses a fracture patient rescue robot which is composed of a vehicle body and an actuating mechanism. The actuating mechanism comprises a lifting mechanism, a sliding stretcher and two operating arms of six degrees of freedom. The sliding stretcher has an upper layer and a lower layer, the lower layer is a protective shell and the upper layer is a belt drive device. The lifting mechanism is composed of a vehicle body telescopic connecting bar fixed with the vehicle body, a stretcher connecting bar fixed with a lower layer movable stretcher and a telescopic bar. One end of the vehicle body telescopic connecting bar is movably connected with one end of the stretcher connecting bar, both ends of the telescopic bar are respectively connected with the lower layer movable stretcher and the vehicle body, and the vehicle body telescopic connecting bar and the telescopic bar are respectively driven by a worm and gear. The two operating arms of six degrees of freedom are installed symmetrically at the front portion of the sliding stretcher. According to the sliding stretcher, full consideration is given to human body structure and injury particularity, the operational process of the double-position automatic registration and fusion scanning board meets standards of human body first-aid operations, and damage to the human body in an operational process is reduced to the maximum extent.
Owner:SANITARY EQUIP INST ACAD OF MILITARY MEDICAL SCI PLA
Rescue robot executing mechanism for person with fracture
InactiveCN103110482AEffective protectionCause secondary damageAmbulance serviceRescue robotEngineering
The invention discloses a rescue robot executing mechanism for a person with fracture. The executing mechanism comprises a lifting mechanism, a sliding stretcher and two operation arms with six degrees of freedom. The sliding stretcher is divided into an upper layer and a lower layer, the lower layer is a protective cover shell, and the upper layer is a belt type transmission device. The lifting mechanism is composed of a vehicle body stretchable connection rod fixed with a vehicle body, a stretcher connection rod fixed with a lower layer movable stretcher and a stretchable rod. One end of the vehicle body stretchable connection rod is movably connected with one end of the stretchable rod, and two ends of the stretchable rod are respectively connected with the lower layer movable stretcher and the vehicle body. The vehicle body stretchable connection rod and the stretchable rod are respectively driven by a worm and a gear, and the two operation arms with six degrees of freedom are symmetrically arranged on the front portion of the sliding stretcher. Each operation arm with six degrees of freedom is of a separation movement decoupling structure composed of six rotational joints. According to the rescue robot executing mechanism for the person, human body structure and particularity of damage are taken into full consideration, operation procedures are in accordance with human body rescue operation specifications, and damage to a human body in an operation process is greatly reduced.
Owner:SANITARY EQUIP INST ACAD OF MILITARY MEDICAL SCI PLA
Inflation expansion truss solar panel array capable of on-orbit assembly
InactiveCN102324438ATroubleshooting Difficult Launch IssuesSmall size when foldedPhotovoltaicsPhotovoltaic energy generationOrbitSatellite
The invention provides an inflation expansion truss solar panel array capable of on-orbit assembly. The invention relates to an inflation expansion truss solar panel array to solve a problem that a present solar panel can not satisfy a large area solar panel requirement of spacecrafts such as a satellite, a space station and the like. Technical schemes of the invention are as follows: firstly, along a vertical equal interval, an assembly inflation expansion vertical truss is provided with a plurality of assembly inflation expansion solar panel units which are in mortise-tenon connection with truss unit connection columns of an assembly inflation expansion truss unit through framework unit connection columns; secondly, along a vertical direction, the assembly inflation expansion vertical truss is provided with a plurality of the assembly inflation expansion solar panel units; thirdly, one end of an assembly inflation expansion transverse truss is aligned with one end of the assembly inflation expansion vertical truss, and is in mortise-tenon connection with the truss unit connection columns through the framework unit connection columns. The inflation expansion truss solar panel array is applied to an astronaut on-orbit assembly inflation expansion truss solar panel array.
Owner:HARBIN INST OF TECH
Space inflation deployable antenna reflector without influence of sunlight pressures
ActiveCN104241868AReduce adverse effectsSmall size when foldedAntennasNatural satelliteConstant force
The invention provides a space inflation deployable antenna reflector without influence of sunlight pressures. The space inflation deployable antenna reflector is characterized in that a gold-plated or nickel-plated molybdenum screen mesh, a mesh rack capable of being stiffened and a thin-film surface of a lens are adhered with one another to form a closed air cavity, an inflation support ring is connected with the closed air cavity by constant-force springs, an opening of an elastic clip is formed in the outer portion of a support sleeve, and an explosive bolt is arranged on the opening of the elastic clip. The space inflation deployable antenna reflector has the advantages that the inflation support ring and the closed air cavity can be respectively inflated at preset tracks after the space inflation deployable antenna reflector lifts off, and the structure of the antenna reflector is deployed to form a fixed structural shape, the explosive bolt is exploded and destroyed after materials capable of being spatially stiffened are illuminated and solidified by ultraviolet rays in spaces or heated and solidified, the elastic clip in the support sleeve no longer realizes constraining effects on a connecting rope, the connecting rope can be withdrawn from connecting rings under the actions of a motor on a satellite, accordingly, the closed air cavity can be separated from the gold-plated or nickel-plated molybdenum screen mesh and the mesh rack capable of being stiffened, and the antenna reflector can meet design requirements.
Owner:HARBIN INST OF TECH
Passive off-orbit cube satellite
PendingCN110304271AReduce weightSmall size when foldedCosmonautic partsArtificial satellitesEngineeringOrbit
The invention discloses a passive off-orbit cubic satellite, belongs to the technical field of near-earth orbit separation. The passive off-orbit cubic satellite solves the off-orbit problem of a near-earth orbit, and comprises an inflatable resistance-increasing ball; a polyimide film material with the thickness of less than or equal to 5 microns is adopted as a ball skin of the inflatable resistance-increasing ball; the inflatable resistance-increasing ball which is is deflated and folded is sealed in a cubic box, one end surface of the cube box is provided with a hinged box cover, and the hinged box cover is locked through a initiating explosive bolt. The passive off-orbit cubic satellite is applied to near-earth orbit separation.
Owner:苏州展驭长空空间技术有限公司
Foldable baby carriage capable of being pushed in reverse direction
InactiveCN101767600AReasonable structureStable supportCarriage/perambulator with multiple axesEngineeringMechanical engineering
The invention discloses a foldable baby carriage capable of being pushed in a reverse direction. The invention is characterized in that a push-hold frame is provided with an inverting handle interlocked with a pulling cable; the pulling cable is connected with a positioning piece connecting seat which forms a positioning piece; the upper end of the connecting seat jacks up an offsetting spring; the other end of the offsetting props against the inside of the push-hole frame upwards; the side of an upper inverting seat is provided with a kidney-shaped hole and the positioning piece penetrates through the hole; a first positioning part and a second positioning part are formed at a lower inverting seat and are matched with the positioning piece; a first guide surface is formed between the two positioning parts for transition; when the push-hold frame is pushed in a forward direction, the positioning component penetrates through the kidney-shaped hole and is clamped at the first positioning part; the positioning component slides to be clamped at the second positioning part along the first guide surface, and by this time, the push-hold frame is pushed in a reverse direction; both ends of a rear hood frame are rotatably connected with the lower inverting seat; and a retracting device is arranged between the rear hood frame and the lower inverting seat. The invention has the advantages of high strength of the reverse mechanism, reliable inverting and folding operation, smooth conversion, adjustable angle of the backrest and small volume because front wall components are retracted inwards after being folded.
Owner:NINGBO SHENMA GROUP
Lower linkage folding joint for linkage folding stroller
ActiveCN104442984AReduce thicknessReduce volumeCarriage/perambulator with multiple axesEngineeringMechanical engineering
The invention discloses a lower linkage folding joint for a linkage folding stroller. The lower linkage folding joint comprises a front connecting piece and a rear connecting piece, and a lower connecting piece is arranged between the front connecting piece and the rear connecting piece. A front connecting piece groove is formed in the side, facing the lower connecting piece, of the front connecting piece, and a front connecting piece sliding block capable of sliding in the front connecting piece groove is arranged in the front connecting piece groove. A front elastic piece is arranged between the front connecting piece sliding block and the front connecting piece, and a front inclined push protrusion is arranged on the side, facing the lower connecting piece, of the front connecting piece sliding block. A rear connecting piece groove is formed in the side, facing the lower connecting piece, of the rear connecting piece, a rear connecting piece sliding block capable of sliding in the rear connecting piece groove is arranged in the rear connecting piece groove, and a rear elastic piece is arranged between the rear connecting piece sliding block and the rear connecting piece. A rear inclined push protrusion is arranged on the side, facing the lower connecting piece, of the rear connecting piece sliding block. A lower connecting piece center hole is formed in the middle of the lower connecting piece, a clamping hole is formed in one side of the lower connecting piece center hole, and a rotating block capable of rotating in the lower connecting piece center hole is arranged in the lower connecting piece center hole. The two sides of the rotating block are each provided with an inclined push structure, and a lower pull rope is connected to the rotating block.
Owner:GUANGDONG ROADMATE GRP
Baby carriage
PendingCN107757688AAchieve foldingEasy to foldCarriage/perambulator accessoriesCarriage/perambulator with multiple axesEngineeringMechanical engineering
The invention discloses a baby carriage. The baby carriage comprises first support legs and second support legs connected with wheels, wherein the first support legs are provided with a transverse shaft, the transverse shaft is connected with first rotating sleeves capable of rotating relative to the transverse shaft, the transverse shaft is also connected with second rotating sleeves capable of rotating relative to the transverse shaft only after the first rotating sleeves rotate, the lower ends of the second rotating sleeves are connected with the second support legs, a locking device capable of preventing each first rotating sleeve from rotating is arranged between each first rotating sleeve and the transverse shaft, the upper ends of the first rotating sleeves are connected with support rods capable of rotating along with the first rotating sleeves, hand push rods capable of sliding up and down in the support rods and capable of driving the locking devices to be unlocked after sliding down are arranged in the support rods, and a latching device for latching each hand push rod and each support rod is arranged between each hand push rod and each support rod. The baby carriage disclosed by the invention is simple in structure and convenient to operate and has a small volume after being folded.
Owner:中山恒之宝婴童用品有限公司
Micro generation-electric bicycle
InactiveCN102530156AReduce weightSmall size when foldedFoldable cyclesRider propulsionVehicle frameEngineering
The invention discloses a micro generation-electric bicycle which is provided with a double-folding frame, a generation-electric integrated machine, a special controller, an electric-generation drive system, a pedal drive system, an internal-rotation connection shaft flywheel and a mobile storage battery.
Owner:赵幼仪
Stroller frame
ActiveCN103192861ACompact structureSmall size when foldedCarriage/perambulator with multiple axesHandrailEngineering
The invention discloses a stroller frame. The stroller frame comprises a forefoot, a rear foot, a base plate, a side handle and a connecting pipe, and further comprises a handlebar and a canopy folding mechanism, wherein the handlebar is sleeved with the connecting pipe in a sliding manner, and the end part of the handlebar is supported on the rear foot of the frame in a clamped manner; the canopy folding mechanism is arranged on the handlebar in a sliding manner; and beside, one end of the connecting pipe is pivotally connected with the side handle, and the other end is pivotally connected with the base plate and the rear foot. The canopy folding mechanism of the stroller frame provided by the invention can slide to match with the downward sliding of the cart handle, so that after being folded, the frame is more compact in structure, space-saving and portable, and can reduce folding size.
Owner:WONDERLAND NURSERYGOODS CO LTD
Ultrathin exquisite portable multifunctional laptop table
InactiveCN102475438AEffective coolingHeight adjustableOffice tablesExtensible tablesEngineeringLaptop
The invention discloses an ultrathin exquisite portable multifunctional laptop table, which comprises a main tabletop, a flat-plate hollow frame, a left tabletop, a right tabletop, foldable legs, first telescopic legs and second telescopic legs. The left tabletop and the right tabletop are mutually symmetrical left and right, an edge of the main tabletop is hinged to an edge of the flat-plate hollow frame, one side of each of the left tabletop and the right tabletop is hinged onto one of side edges of two sides of the flat-plate hollow frame, the telescopic legs and the foldable legs are arranged in cavities of the lower sides of the left tabletop and the right tabletop, two electric fans are disposed on the main tabletop, and the lower side of the main tabletop is hinged with a supporting frame matched with a clamp groove on the flat-plate hollow frame. Therefore, the ultrathin exquisite portable multifunctional laptop table has the advantages that a heat dissipation effect is realized, the heights and the angles of the tabletops can be adjusted randomly, comfortable operation is realized, the volume is small and the weight is light after the laptop table is folded, the table is small in occupied space and convenient in carrying, and the like.
Owner:刘耀东
Rigidizable inflating-expansion radial direction rib support type offset-feed paraboloidal antenna
Owner:HARBIN INST OF TECH
Flexible solar wing unfolding mechanism with high unfolding-folding ratio
PendingCN113291494ASimple structureImprove reliabilityCosmonautic vehiclesCosmonautic power supply systemsGear driveGear wheel
The invention discloses a flexible solar wing unfolding mechanism with a high unfolding-folding ratio. The flexible solar wing unfolding mechanism comprises a bottom plate, a shear fork rod assembly, a top plate and a solar blanket assembly; the unfolding mechanism further comprises a driving assembly integrated on the bottom plate; the driving assembly is provided with a driving motor and a transmission gear, and the transmission gear extends to the upper part of the bottom plate; and the driving assembly is in transmission connection with the shear fork rod assembly through the transmission gear and drives the shear fork rod assembly to be unfolded so as to drive the solar blanket assembly to be unfolded. The unfolding mechanism is simple in structure, high in reliability and small in mass; most structural parts in the mechanism are made of spaceflight-grade hard aluminum alloy and carbon fiber composite materials, the mechanical structure is simple and not numerous and jumbled, and the structural parts are subjected to lightweight design improvement on the premise that the strength and vibration requirements are guaranteed; and the unfolding mechanism is low in manufacturing cost and material price, structural parts are simple in structure and convenient to manufacture, the shear fork rod assembly drives the solar blanket assembly to move, and the unfolding mechanism has the advantages of being light in weight, small in folding size, large in unfolding span and high in unfolding and folding ratio.
Owner:CHANGGUANG SATELLITE TECH CO LTD
Large-scale expandable reflection plane based on centrally-deformed truss's externally connected and wound rib
ActiveCN107293861ASolve the problem of excessive volumeSolve the problem of low deployment reliabilityAntennasImaging qualityBlock effect
The invention is a large-scale deployable reflection plane based on a centrally-deformed truss's externally connected and wound rib, which relates to the technical field of large-scale wound-rib-type expandable parabolic antennas. The centrally-deformed truss is a regular polygon shape truss. The front edge of each bifurcated rib is connected to the short side column corresponding to the centrally-deformed truss through chains. The geometric structure of the reflection plane is a partial feeding parabolic plane. The central area on the back plane in the normal direction of the reflection plane and the tensioned back mesh supported by the deformed truss are formed in shape. The parts outside the central area are fixedly connected with the lower plate edges of a plurality of symmetrical bifurcated ribs. The tensioned back mesh is connected with the reflection plane through a plurality of shape controlling and adjusting ropes. One end of the support arm is articulated with the junction point of the upper edge short column of the centrally-deformed truss and the other end of the support arm is articulated with a satellite main body. The feed source at the focusing point of the parabolic plane corresponds to the reflection plane, and the feed source is fixedly mounted on the satellite main body through a waveguide tube. According to the invention, through the use of an integrated structure, very highly image quality comparative edge can be achieved, and the expansion is very reliable, and at the same time, the blocking effect is eliminated.
Owner:HARBIN INST OF TECH
Modular Space Curved Surface Folding Antenna Mechanism Based on Rib Mechanism
ActiveCN104022337BRealize modular expansionRealize modular productionCollapsable antennas meansComputer moduleModularity
Owner:HARBIN INST OF TECH
Foldable wing structure
ActiveCN113120222ASmall size when foldedEliminate height differenceWing adjustmentsDrag reductionFlight vehicleClassical mechanics
The invention discloses a wing folding structure which comprises a wing platform, a rotating assembly, a wing assembly, a driving assembly and a limiting assembly, the rotating assembly comprises a first rotating shaft and a second rotating shaft which are rotationally connected with the wing platform, and the wing assembly comprises a left wing and a right wing; the left wing is fixedly connected with the first rotating shaft, and the right wing is fixedly connected with the second rotating shaft; the wing assembly has a folded state and an unfolded state; the limiting assembly is arranged on the wing platform and movably connected with the rotating assembly, so that the rotating assembly is limited to be fixed when the limiting assembly is effective, and the wing assembly is in the folded state; the driving assembly is in transmission connection with the rotating assembly so as to drive the rotating assembly to rotate when the limiting assembly fails, and then the wing assembly is converted into the unfolded state from the folded state. On the premise that the folding size is small, the functions of eliminating the height difference after the wings are unfolded and having the dihedral angle are achieved, and an aircraft has better aerodynamic performance while being convenient to store and transport.
Owner:NAT UNIV OF DEFENSE TECH
Baby stroller and seat pocket thereof
ActiveCN107323513ASmall size when foldedEasy conversionCarriage/perambulator accessoriesCarriage/perambulator with multiple axesInfant StrollersStructural engineering
The invention belongs to the technical field of baby strollers, and discloses a baby stroller and a seat pocket thereof. The seat pocket of the baby stroller comprises a seat, a backrest, an armrest assembly and connecting rods. The backrest and the armrest assembly are arranged on the seat in a pin connection manner, the seat is connected with a frame of the baby stroller and is in pin connection with the backrest by first pin connection shafts, one end of each connecting rod is in pin connection with the backrest by second pin connection shafts, and the other end of each connecting rod is in pin connection with the armrest assembly by third pin connection shafts; the second pin connection shafts are positioned on the rear lower sides of connection lines of the third pin connection shafts and the first pin connection shafts when the seat pocket of the baby stroller is in a lying posture; the second pin connection shafts are positioned on the rear upper sides of the connection lines of the third pin connection shafts and the first pin connection shafts when the seat pocket of the baby stroller is in a sitting posture state. The seat pocket and the baby stroller with the structures have the advantages that the seat pocket in the sitting posture state and a lying posture state can be effectively changed, and change operation is simple; the integral seat pocket can be folded as needed, and accordingly the baby stroller is small in folded volume.
Owner:KUNSHAN VIGORKIDS CHILD PROD
Baby stroller
ActiveCN104176101ASimple structureEasy to fold and operateCarriage/perambulator with multiple axesVehicle frameBack support
The invention discloses a baby stroller, which comprises a stroller frame, front wheel assemblies, back wheel assemblies and a locking device, wherein the stroller frame has a unfolding state and a folding state, the locking device is used for locking the stroller frame in the unfolding state, and particularly, the stroller frame comprises bottom rods, back support rods and push rods; each bottom rod extends in the fore-and-aft direction, the lower part of each back support rod is rotationally connected with the back end part of the corresponding bottom rod, the bottom of each push rod is rotationally connected with the upper end part of the corresponding back support rod, the front wheel assemblies and the back wheel assemblies are respectively and rotationally connected with the front end parts and the back end parts of the bottom rods, the locking device comprises a first locking unit, during unfolding, the back support rods and the back wheel assemblies are in locked connection through the first locking unit, and during folding, the back support rods and the back wheel assemblies are unlocked for separation. The baby stroller provided by the invention has the advantages that wheels can be retracted and gathered between the bottom rods arranged at two sides while the stroller frame is folded, the size after the folding is small, the occupied space is small, meanwhile, the structure is simple, and the operation is convenient.
Owner:GOODBABY CHILD PROD CO LTD
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