96 results about "Folding unfolding" patented technology

A folded rigid knee airbag for preventing the lower body portion of a vehicle occupant from being propelled forward during a collision is provided. The folded rigid knee airbag includes a back panel and a front panel attached to the back panel. Both the front panel and the back panel may be made from a rigid material, such as sheet metal. The back panel may include first and second accordion folds, and first and second vertical folds. The airbag may be in communication with an inflator. During discharge of the inflator, the accordion folds and the vertical folds unfold to form four substantially planar walls. The accordion folds and the vertical folds enable the front panel to remain substantially flat and maintain a substantially uniform cross-sectional area during inflation.

The invention discloses a wing folding-unfolding mechanism for a small unmanned aerial vehicle with folding wings. The wing folding-unfolding mechanism comprises an upper cover plate (1), a spring drive mechanism (2), a manual unlocking rod (3), a vertical wing rib plate (4), a rotary plate (5), a lower cover plate (6), a front vertical plate (7), a steering engine (8), a middle vertical plate (9), a steering engine unlocking link mechanism (10), a small vertical plate (11), a right vertical plate (12), a locking hook mechanism (13) and a rotary shaft (14). By virtue of the deformation of a slider-swing rod mechanism, the wing folding-unfolding mechanism has a self-locking function, and is simple in structure and reliable in action; drive force comes from a spring, the change rule of output force is simple, and the wing folding-unfolding mechanism is simple to design and produce, low in cost and convenient to use, and can be reused; and the steering engine unlocking link mechanism is designed to be of a unidirectional stressed type, and thus the conversion process from an unfolding state to a folding state is simplified.

The invention relates to a foldable tetrahedral structure with a single degree of freedom and a large folding-unfolding ratio, and discloses a foldable tetrahedral structure. The foldable tetrahedral structure comprises four folding units, six bar units and a symmetry axis, wherein the connection positions on the four folding units are connected with the connection positions on the six bar units through rotating pairs or spherical pairs, and a closed polyhedral structure is formed; and besides, the units and the kinematic pairs meet a series of symmetrical relationships and constraint conditions with respect to the symmetry axis, and therefore an octahedral structure capable of being folded into the tetrahedral structure is established. The foldable tetrahedral structure can achieve a folded state and an unfolded state stably, when being folded, the structure is small in size and convenient to launch or transport, and when being unfolded, a large working space is achieved. The whole foldable tetrahedral structure only has one degree of freedom and has the advantages that production and processing are easy, movement control is convenient, and reliability is high. The foldable tetrahedral structure has great significance and broad application prospects in numerous fields such as aerospace and civil engineering.

The invention discloses a scissor-type space stretching arm mechanism which comprises a first scissor unit part, a second scissor type unit part, a driving part, a top support part, four first longitudinal support parts and four second longitudinal support parts, wherein the structure of the first scissor type unit part is identical with that of the second scissor type unit part; the structures of the four first longitudinal support parts are identical; the structures of the four second longitudinal support parts are identical; the top support part is mounted on the driving part through the second scissor type unit part and the first scissor type unit part sequentially; and the first longitudinal support parts and the second longitudinal support parts are respectively arranged on four sides of the first scissor unit part and the second scissor type unit part. According to the scissor-type space stretching arm mechanism disclosed by the invention, by adopting the dual-cam combined design, the longitudinal and transverse rigid locking of a space stretching arm is realized through a dual-cam outline on a stepped cylindrical cam, and thus the stable state of the stretched stretching arm is guaranteed to be a rigid truss structure. The scissor-type space stretching arm mechanism disclosed by the invention has the advantages of great folding-unfolding ratio, compact structure and favorable symmetry. The folding-unfolding and locking functions are simultaneously achieved by inputting a single power source, and thus the folding-unfolding precision is ensured. The scissor-type space stretching arm mechanism is applied to the field of foldable-unfoldable mechanisms.

The invention provides an elastic extending rod unfolding mechanism and relates to an unfolding mechanism. The problems of low unfolding accuracy, low folding-unfolding ratio, poor unfolding performance and poor driving force of an existing unfolding mechanism are solved. According to the elastic extending rod unfolding mechanism, a flattened elastic extending rod is wound on a roller; through therotation of the roller, the elastic extending rod is controlled to extend and close; a rocker arm mechanism controls the elastic extending rod to be flattened or swollen; a root clamping mechanism fixes the root of the elastic extending rod; a pressing wheel mechanism enables each layer of the elastic extending rod to fit each other closely; a guide wheel mechanism guides the elastic extending rod in the unfolding or closing process of the elastic extending rod; a friction wheel power transmission mechanism and a friction wheel mechanism are both mounted in a supporting frame; the friction wheel power transmission mechanism provides power for the friction wheel mechanism; through contact between the friction wheel mechanism and the elastic extending rod, an unfolding force is provided forthe unfolding of the elastic extending rod; and a sliding lock mechanism is mounted on the external side surface of the supporting frame and controls the friction wheel mechanism to be pressed and released. The elastic extending rod unfolding mechanism is used for the field of aerospace and defence-related science and technology.

The invention relates to solar wings, in particular to a cubic unfoldable solar wing. One ends of a left protective plate and a right protective plate are separately connected with the two sides of a base through locking devices, and the other ends of the left protective plate and the right protective plate are connected with the two sides of an upper cap through hinges. A shear-fork type unfoldable solar cell mounting plate array comprises a plurality of units of the same structure. Each unit comprises a solar cell mounting plate, a supporting connecting rod and a solar cell which is mounted on the solar cell mounting plate. The two ends of each solar cell mounting plate are separately hinged to the adjacent solar cell mounting plates. The supporting connecting rods are hinged to the same sides of all the solar cell mounting plates. The two ends of each supporting connecting rod are separately hinged to the adjacent supporting connecting rods. The upper portion and the lower portion of the shear-fork type unfoldable solar cell mounting plate array are separately connected with the upper cap and the base through hinges. The cubic unfoldable solar wing is small in size, large in folding-unfolding ratio, novel in structure, flexible in control, high in reliability and large in number of the carried solar cells.

The invention provides a folding unfolding type inflatable anti-collision connecting bridge. The connecting bridge is arranged on the outer edge of an offshore oil platform and comprises a protectingshell, an air bag, an inflating device, a pressure sensor, a butt joint device and a positioning sensor; the protecting shell is in a strip shape and is arranged along the outer edge of the offshore oil platform, and the outer side face of the protecting shell is an unfolding shell which can be unfolded under the driving by a motor; and the air bag is contained in the protecting shell, and the butt joint device used for detecting and checking the position of a ship and the positioning sensor are arranged outside the air bag. According to the connecting bridge, alignment, connection and energytransmission between the ship and the platform can be rapidly, accurately and safely realized under the condition that the marine environment is relatively severe; and the device adopts a device whichcan be inflated and unfolded, so that the device can be conveniently unfolded and folded, the occupied area of the device is small.

The invention provides a parallel type lower limb exoskeleton rehabilitation training device which comprises a waist support frame, a hip-joint convolution annular rotation unit, a hip-joint inwards-folding outwards-unfolding unit, a hip-joint bending and stretching unit, and a knee joint bending and stretching unit, wherein the hip-joint convolution annular rotation unit can realize the actions of inward rotation, outward rotation and annular rotation of a hip-joint under the drive of a rotation motor; the hip-joint inwards-folding outwards-unfolding unit realizes the actions of inwards-folding and outwards-unfolding of the hip-joint through the control on the expansion amount of a push rod of a folding-unfolding electric cylinder; the hip-joint bending and stretching unit realizes the actions of bending and stretching of the hip-joint through the control on the expansion amount of a push rod of a bending and stretching electric cylinder; the knee joint bending and stretching unit realizes the actions of bending and stretching of a knee joint through the control on the expansion amount of a push rod of a knee joint bending and stretching electric cylinder. Through the adoption of the parallel type lower limb exoskeleton rehabilitation training device, the rehabilitation training for all the basic actions of lower limbs can be realized, that is, movements of the hip-joint around three basic axes, including basic movements of bending, stretching, inwards-folding, outwards-unfolding, inward rotation, outward rotation and annular rotation, as well as the bending and stretching of the knee joint can be realized.

The invention discloses a simulation aircraft undercarriage analogue device, which comprises a left fixing plate, a right fixing plate, an undercarriage joystick, a plurality of undercarriage gear inductive switches, an undercarriage folding-unfolding and limiting rod, an electromagnet, a limiting device, a limiting shaft and a server. An undercarriage three-gear position slot and an undercarriage limiting device slot are formed in each of the left fixing plate and the right fixing plate; the undercarriage joystick is fixed between the left fixing plate and the right fixing plate through a supporting shaft; the plurality of undercarriage gear inductive switches are arranged on the left fixing plate or the right fixing plate at positions close to gears of the corresponding undercarriage three-gear position slot; the undercarriage folding-unfolding and limiting rod is fixed on the undercarriage joystick, and matched with the left undercarriage three-gear position slot and the right undercarriage three-gear position slot; the electromagnet is fixed between the left fixing plate and the right fixing plate; the limiting device props up or drops down under the action of the electromagnet; the limiting shaft is fixed to the tail end of the undercarriage joystick and can slide along the left undercarriage three-gear position slot and the right undercarriage three-gear position slot; and the server receives position data transmitted by the undercarriage gear inductive switches, and controls the limiting device to prop up or drop down according to the position data.

The invention discloses a bridge bottom surface coating device comprising first sliding rail groove erected in the side walls of a bridge. Jack supports are mounted at the two ends of the first sliding rail grooves; and sliding blocks driven by motors to move back and forth on the first sliding rail grooves are mounted on the first sliding rail grooves. The bridge bottom surface coating device is characterized in that upper pipe sleeves are connected to the lower portions of the sliding blocks; the upper pipe sleeves are connected with lower pipe sleeves in a hinged mode; second motors driving the lower pipe sleeves to rotate are mounted on the side edges of the upper pipe sleeves; steel wire rope folding-unfolding machines are mounted on the sliding blocks; steel wire ropes penetrate through the upper pipe sleeves and the lower pipe sleeves, one ends of the steel wire ropes are connected with the steel wire rope folding-unfolding machines, and the other ends of the steel wire ropes are connected with clamping groove seats; and groove holes allowing the lower pipe sleeves to be inserted are formed in the clamping groove seats. The bridge bottom surface coating device has the beneficial effects that painting and coating operation on the wall faces of the bottom of the elevated bridge is automatically achieved through the structure, the speed is high, the mechanization degree is high, the risk of manual operation is reduced, the economical cost is reduced, and the bridge bottom surface coating device is suitable for being used and popularized.

The invention discloses a cable demould folding-unfolding device used to fold and unfold the cable demould package of bridge. It is characterized in that: it comprises a rotation disc (1), a support rod or support plate (2), a pushing rod (3), an adjusting rod (4), a base (6), and an upright post (7). Wherein, said upright post (7) is arranged at the center of rotation disc (1); the base (6) is arranged at the top of upright post (7); the lower end of adjusting rod (4) is movably connected to the base (6); there are several support rods or plates (2) uniformly distributed around the upright post (6), whose lower end is hinged to the outer edge of rotation disc (1) and upper end is hinged to one end of pushing rod (3); another end of pushing rod (3) is hinged to the upper end of adjusting rod (4). The invention has simple operation, high cable quality, and high folded cable intensity, while it can automatically arrange wires in unfolding process.

The invention relates to a foldable and unfoldable space platform which comprises a rotary table and a plurality of supporting frames, the supporting frames are each of a foldable and unfoldable structure and annularly arranged on the peripheral side of the rotary table, and every two adjacent supporting frames are hinged to each other; one ends of the multiple supporting frames are connected to the peripheral side of the rotary table through memory alloy, and the supporting frames are made to rotate to preset positions relative to the rotary table through power-on and power-off of the memoryalloy. The exposed area of the space platform is obviously increased after the space platform is unfolded, the occupied area of the whole panel is relatively small in the recycling process, and the launching and recycling cost can be reduced; deformation driving force generated by on-off of the memory alloy is adopted to enable the supporting frame blades to rotate, and then all the supporting frame blades are driven to rotate relative to the rotary table, so that the structural weight can be reduced, the space is saved, and the system reliability is improved.

The invention relates to a laterally movable cleaning robot for a glass curtain wall cleaning system, comprising a laterally movable chassis device, a retractable mechanism installed on the chassis device, a wheel mechanism, a battery, a control mechanism, a cleaning mechanism and The propeller and the wheel mechanism include a wheel set, a telescopic mechanism 1 and a lateral movement mechanism 1. The telescopic mechanism 1 can drive the wheel set to move vertically, and the traversing mechanism 1 can drive the wheel set to move laterally; the chassis device includes a chassis and a traversing mechanism 2. The second shifting mechanism can drive the chassis to move laterally relative to the wheel mechanism; the retracting mechanism includes a supporting device and a rotating device 1, and the rotating device 1 can rotate forward and reverse to realize the retracting and retracting of the track. The cleaning robot group can walk freely in the front and back directions. After cleaning a cleaning route, there is no need to turn around. The cleaning robot group can directly move sideways and then walk in the opposite direction, which is convenient and fast, and greatly improves the cleaning efficiency.

The invention relates to a space shelf, in particular to the space shelf capable of being folded and unfolded. The lower side of an upper back board is hinged with the upper side of a lower back board; one side of a top beam is hinged with the upper side of the upper back board; the other side of the top beam is rotatably connected with one side of an upper longitudinal beam; one side of a bottombeam is hinged with the lower side of the lower back board; the other side of the bottom beam is rotatably connected with one side of a bottom longitudinal beam; the two ends of one side of the bottomlongitudinal beam are hinged with middle longitudinal beams; the two ends of the lower side of the lower back board are separately hinged with back board bottom longitudinal beams; and one surface, which faces towards each beam and each longitudinal beam, of the upper back board is equipped with a back board insertion pin assembly for realizing relative-angle fixing between the upper back board and the lower back board. The space shelf has the characteristics of being novel in structure, easy to implement a folding process and an unfolding process, being easy to store in a folding state, relatively high in stability after being unfolded, and the like, and is suitable for an occasion with relatively high requirements on storage and a folding-unfolding ratio in the aerospace field.

The invention discloses a space folding-unfolding mechanism provided with cranks and slide blocks as folding-unfolding units and adopting rigid hinge connection. Machine seats are connected with foldable units through hinges, and the foldable units comprise support rods and crank block mechanisms. One ends of the support rods are connected with the machine seats through hinges, and the two sides of the support rods are connected with the crank block mechanisms through hinges. The crank block mechanisms comprise the cranks, connecting rods and the slide blocks, one ends of the cranks are connected with the support rods through hinges, and the other ends of the cranks are connected with the connecting rods through hinges. One ends of the connecting rods are connected with the cranks throughhinges, and the other ends of the connecting rods are connected with the slide blocks through hinges. One ends of the slide blocks are connected with the connecting rods through hinges, and the otherends of the slide blocks of the former crank block mechanism are connected with the cranks of the next crank block mechanism. The rigid hinges enable the two foldable units to be connected. Accordingto the space folding-unfolding mechanism, the number of the driving motors is small, the weight of the folding-unfolding mechanism is low, the space folding-unfolding mechanism is conveniently transported on rocket vehicles, the folding-unfolding process is simple, the space folding-unfolding mechanism can be folded in a space, the folding ratio is large, rigidity is large, the stability is good,the reliability is high, and the good practicability is achieved.

The invention discloses an electronic desk capable of automatically lifting and rotatably adjusting an angle of view. The electronic desk comprises a desk box body, wherein a rectangular display screen is arranged on the middle part of a front panel of the box body; an electronic table lamp is mounted above a left side panel; an intelligent voice controller is mounted in the middle of the left side panel; a right side panel is equipped with a movable folding-unfolding high-definition high-speed photographic apparatus; the middle of the back surface of the box body is equipped with a concave connector box body; high-torsion gears are mounted on the inner side surfaces of the two ends of the concave connector box body, and are matched with a precision power gearbox in a convex connector boxbody; a micro servo motor, a torsion gearbox and a high-precision gear are mounted in the convex connector box body; a handle switch is touched to start the servo motor to drive the gears to move to drive the desk box body to rotate by the angle of view; a micro servo motor reduction box is mounted on a bottom fixed supporting base; and the servo motor is rotated to perform integral lifting regulation on the table board of the desk box body through a telescopic pushing rod, so that needs of different users are met, and therefore, the practical value is very high.

The invention relates to an intelligent new energy vehicle capable of improving travelling safety on rainy days. The intelligent new energy vehicle comprises a vehicle body and vehicle wheels, the vehicle body further comprises a wiping device, and the wiping device comprises a moving mechanism, a folding-unfolding mechanism and a wiping mechanism; and the moving mechanism comprises a first motor,a screw rod, a sliding rod and a sliding block; and the folding-unfolding mechanism comprises a folding-unfolding chamber and two folding-unfolding assemblies arranged in the folding-unfolding chamber, and the wiping mechanism comprises two wiping assemblies. According to the intelligent new energy vehicle capable of improving the travelling safety on the rainy days, when a vehicle owner needs toview rearview mirrors to watch rear vehicles, the wiping device is started, rainwater on glass windows on the two sides is wiped to prevent the rainwater from blocking the line of sight so that the owner can conveniently view the rearview mirrors, not only is convenience brought to travelling on the rainy days, but also safety of travelling on the rainy days is greatly improved.

The present invention discloses a folding-unfolding structure, a rotor power assembly and a tilting rotorcraft. The folding-unfolding structure comprises a tilting device, a mounting table, an adapter, a driving part, a push-pull part and a plurality of lever parts. One end of the push-pull part is sildingly connected to the tilting device, the other end of the push-pull part is fixedly connected with the driving part; the adapter is connected with the driving part and the lever parts; the lever parts are used for mounting and fixing a to-be-folded part, rotatably connected to the mounting table and can rotate relative to the adapter, the tilting device drives the push-pull part to move, and thus the ends, away from the adapter, of the lever parts are driven to move upwards or downwards through the driving part and the adapter, to fold or unfold the to-be-folded part. By applying the technical scheme, the wind resistance during the flight process of unmanned aerial vehicles can be decreased, and the flight endurance is prolonged.

The invention discloses a simulation making method for folded paper-cut. The method comprises the following steps: (a) calling an API (Application Program Interface) on an Android platform based on a folding-unfolding method to realize a folding-unfolding operation; (b) calling the API on the Android platform to realize a pattern hollowing operation; (c) calling the API on the Android platform to realize a scissors hollowing operation; and (d) saving into a picture after finishing the operations of folding, unfolding, hollowing and the like. The method has the advantages of good user interaction, very good effects of produced works, and the like.

The invention discloses a rapid unfolding vehicle-mounted tent, comprising a support plate, an inflation support frame, a tarpaulin, a buffer air bag, and a controller. One side of the support plate is hinged with the lower part of one side of a carriage. The buffer air bag is connected with the support plate. The buffer air bag is provided with an air bleed valve facing the outer side of the support plate. The air bleed valve is provided with an electronic control valve. The carriage outer wall on one side of the support plate is provided with a first folding-unfolding groove. The support plate is provided with a second folding-unfolding groove. The inflation support frame is connected in the second folding-unfolding groove. The tarpaulin covers the inflation support frame. The first folding-unfolding groove is internally provided with an electromagnet. The support plate is provided with a magnet cooperating to attract or reject the electromagnet. The electronic control valve, the electromagnet, and the controller are electrically connected. When the tent is used, the vehicle-mounted tent does not need to turn the side surface of the carriage by hand, and use is convenient.

The invention discloses an agricultural spraying unmanned aerial vehicle having a spraying cover guiding function. According to the agricultural spraying unmanned aerial vehicle, a pesticide box is arranged at the lower part of an unmanned aerial vehicle; a rotation camera is arranged at the upper part of the pesticide box; a plurality of solar battery plates are arranged at the side surface of the pesticide box; a left pump and a right pump are arranged at the lower part of the pesticide box; the left pump is connected with a left pump power source fixedly arranged at the lower part of the pesticide box; the right pump is connected with a right pump power source fixedly arranged at the lower part of the pesticide box; the left pump and the right pump are connected with a rotation connection device which is fixedly arranged at the middle-lower parts of the left pump and the right pump by metal pipelines; a rotation disc is fixedly arranged at the lower part of the rotation connection device; nozzles are arranged around the rotation disc; a spraying cover fixedly arranged on the rotation disc is arranged around the nozzles; the spraying cover is connected with two folding-unfolding motors at the lower parts of the right pump power supply and the left pump power supply by pipelines; a rotation disc motor penetrates through the rotation connection device to be connected with the rotation disc; a controller is fixedly arranged above the rotation disc motor. The agricultural spraying unmanned aerial vehicle is simple in structure, and scientific and reasonable in design; pesticides can be sprayed uniformly during flight of the unmanned aerial vehicle, and the spraying covering rate is high.