40results about How to "High folding rate" patented technology

The invention discloses a high-storage-rate self-folding pneumatic soft body mechanical arm based on a paper folding theory. The pneumatic soft body mechanical arm comprises a soft body driver, upperand lower end cover plates and an inflation system, wherein the soft body driver is a cylindrical-like shell, two ends of the cylindrical-like shell are fixed to the upper and lower end cover plates in a sealed mode, and an inner cavity of the shell is inflatable. The shell is of a multi-layer structure with soft body layers laminated, and sequentially comprises an airtight layer, an elastic layer, a limiting layer and a thermal-protective layer from inside to outside. The soft body driver shell is in topology form designed on the basis of the paper folding theory, so that axial large-stroke telescopic driving can be realized, and the shell can be driven to be unfolded in a manner that the inner cavity is inflated through the inflation system; and after air of the inner cavity is discharged, the potential energy of the elastic layer is released, so that the self-folding is realized. The pneumatic soft body mechanical arm further comprises a constraint rope which can realize driving through bending. The pneumatic soft body mechanical arm has the advantages of high-speed operation capability, higher load self-weight ratio, lower power consumption, lower development cost, larger taskspace and the like, and can be widely applied to the field of space flexible adaptive capture.

The invention provides a four-degree of freedom beetle-imitated foldable flapping-wing micro flying robot, and solves the problem that a flapping-wing micro air vehicle in the prior art does not achieve flapping wing folding, rear wing outward expanding/adduction action and a self-locking function. The four-degree of freedom beetle-imitated foldable flapping-wing micro flying robot comprises a four-plate folded wing module, and the four-plate folded wing module is connected with a rear wing bracket module; and the rear wing bracket module, a rear wing outward expanding/adduction action driving module, a rear wing folding driving module, a pitching driving module and a wing flapping driving module are mounted on a cable-driven module mounting bracket. The four-degree of freedom beetle-imitated foldable flapping-wing micro flying robot has the advantages that motion performances of the beetle-imitated flapping-wing flying robot are improved; the technical scheme that the flexible cable drive technology and spring sheets are combined is adopted, so that the folding rate and folding reliability of folded wings are remarkably improved; the rear wing outward expanding/adduction action and the self-locking function are designed, so that the flying robot is more conveniently carried and hidden in complex environments and has wide application prospects; and besides, modular design is adopted in structure, so that the flapping-wing micro flying robot has larger expansion spaces in structure and motion functions.

The invention relates to a method for preparing conotoxin polypeptide Eb1.6. The method comprises the following steps of: 1) synthesizing Eb1.6 linear peptide by using a condensing agent N,N'-diisopropylcarbodiimide/1-hydroxybenzotriazole (DIC/HOBt); and 2) folding the linear peptide to obtain the conotoxin polypeptide Eb1.6. According to the method, the efficiency of the manual synthesis of the linear peptide is improved by using the condensing agent DIC/HOBT; an MNH4HCO3 buffer solution with the pH value of 8.0 and the concentration of 0.1 is selected as a folding buffer solution, is cheap and readily available, and is high in folding rate; a product obtained by the folding is adsorbed by using AmberliteXAD16 macroporous adsorption resin, the resin is dipped by using ethanol, a dipping solution is concentrated, and then an obtained product can be directly used for the subsequent C18 column purification; and meanwhile, the resin washed by using the ethanol is washed by using water and is regenerated, so that the recycling of the buffer system and the resin can be realized, the recovery rate is relatively high, and the cost is reduced.

The invention discloses a micro flying robot with connecting rod type foldable flapping wings, belonging to the technical field of design and manufacture of micro aerial vehicles. In the micro flyingrobot with the connecting rod type foldable flapping wings, a right wing and a left wing are symmetrical structures about the center line of a fuselage, and a j hole of an oscillating bar II in the right wing is movably connected with a perforated lug pair II of a right oscillating bar I in a handpiece device through a bolt; a j hole of an oscillating bar II in the left wing is movably connected with a perforated lug pair I of a left oscillating bar I in the handpiece device through a bolt; a right sliding rail in the right wing is fixedly connected with the side surface of a right steering engine in an empennage device; a left sliding rail in the left wing is fixedly connected with the side surface of a left steering engine in the empennage device; a fuselage rod in the handpiece device is fixedly connected with a p hole in the left end of a vertical tail in the empennage device; the foldable flapping wings of the micro flying robot can be tucked and folded after flying, the exposurearea of the wings can be reduced, and the transportation and storage are convenient.

The invention provides a half-containing type symmetric folding bike. The symmetric folding bike comprises a front frame, a front fork, a front wheel, a rear frame, a rear fork, a rear wheel, a bike head, a saddle, pedestals, a crank and a transmission device; the front wheel is mounted on the front fork, the rear wheel is mounted on the rear fork, the bike head is mounted on the front frame, andthe saddle is mounted on the rear frame; and folding mechanisms are respectively arranged between the front frame and the rear frame, between the bike head and the front fork and between the rear frame and the rear fork, the transmission device is mounted in a front end of the rear fork, the pedestals are mounted on the crank, the crank is connected with an input end of the transmission device, the rear wheel is connected with the transmission device, and the transmission device is a reciprocating type acceleration driving mechanism. The half-containing type symmetric folding bike provided bythe invention can be folded and unfolded rapidly, is high in folding rate, convenient for use, collection and transportation, and great in bearing capability; and each component well meets the human motion engineering so that people riding the bike is natural in posture and cannot get fatigue easily.

The invention relates to a structural technology for a foldable frame of a foldable bicycle. The foldable frame mainly comprises a front tube, a cross beam, a rear beam, a vertical tube and a rear fork, wherein the front end of the front beam is fixedly connected with the front tube; the front beam, the rear beam and the rear fork are hinged in sequence; in order to overlap a front wheel and a rear wheel alternately to fold the bicycle, the front beam and the rear beam are in oblique-shaft hinge; the vertical tube is hinged on the rear beam; the vertical tube and the rear fork are linked by being engaged mutually by a gear; and an inhaul cable traction arm fixedly connected to the vertical tube drags an inhaul cable of which one end is fixed on the front beam. When the foldable frame is folded, the vertical tube rotates forwards and is overlapped with the rear beam, meanwhile, the rear fork rotates downwards from a horizontal state to a vertical state under the action of the gear, at the same time, the inhaul cable drags the front beam to rotate downwards from the horizontal state to the vertical state; action progresses of the vertical tube and the rear fork when the foldable frame is unfolded are opposite to action progresses of the vertical tube and the rear fork when the foldable frame is folded; and the unfolding of the front beam is driven by a spring when the inhaul cable is released. The foldable frame disclosed by the invention realizes the purpose of automatic folding by using the gear, the inhaul cable and the spring as conditions.

The invention discloses a single-degree-of-freedom foldable sail. The single-degree-of-freedom foldable sail comprises a framework assembly, a flexible skin and a wire drive assembly, wherein the flexible skin is fixed onto the framework assembly, and the wire drive assembly is connected with the framework assembly; the framework assembly is composed of a driving framework, a follower framework and a fixed framework which are arranged in sequence from top to bottom; the follower framework is composed of a first aluminum alloy rod piece and a first carbon fiber rod piece; the driving frameworkcomprises a second aluminum alloy rod piece, a second carbon fiber rod piece, an expanding wire fixing shaft, a folding wire fixing shaft and a rotating disc; the fixed framework comprises a third carbon fiber rod piece, a first threaded rod, a connecting rod assembly and a second threaded rod. The single-degree-of-freedom foldable sail has the advantages that the area of the sail is changed by expanding different numbers of the frameworks to adapt to different wind speeds and wind directions on the sea surface, so that the sail has better thrust performance and a more stable sailing attitude,and all the frameworks are folded together to achieve a large folding rate so that a sailing device can be converted from a sail drive mode to a propeller propulsion mode or a dive navigation mode.

The folding type storage device capable of being folded and unfolded in tandem, comprising a left side plate assembly, a cross plate assembly, a middle frame assembly, a right side plate assembly, a back plate assembly and a bolt slideway structure, wherein the left side plate assembly, the right side plate assembly and the middle frame assembly are connected with the back plate assembly through the bolt slideway structure; a left side plate assembly and a right side plate assembly are respectively arranged on two sides of the back plate assembly; the middle frame assembly is arranged betweenthe left side plate assembly and the right side plate assembly and the cross plate assembly is arranged between the left side plate assembly and the right side plate assembly; the left side plate assembly is rotatably connected with the cross plate assembly; the right plate assembly is rotatably connected with the transverse plate assembly; the backplane assembly comprises a left backplane assembly and a right backplane assembly, wherein the right backplane assembly is rotatably connected with the left backplane assembly; the left back panel assembly is pivotally connected to the left panel assembly.

The invention provides a method for fusion expression of an antibacterial peptide by using SUMO. According to the method, ubiquitin-like protein modified molecules SUMO and the antibacterial peptide are prepared into a fusion protein, so that the antibacterial peptide is more effectively recombined and expressed. The amino acid sequence of the antibacterial peptide is SEQ ID NO: 1. The antibacterial peptide LLv with relatively strong antibacterial activity is expressed in escherichia coli by adopting a sumo fusion expression method. By virtue of fusion with sumo, the toxicity to host bacteriais reduced, the folding rate and the expression yield are increased, and soluble expression is successfully realized.

The invention discloses a vertical detection device with a marking function for building construction detection, and relates to the technical field of detection equipment. The problems that an existing vertical detection device generally needs to be fixed on a wall to detect a building in use, the detection efficiency is low due to different measurement environments each time during installation,installation and use are inconvenient, and operation is troublesome due to different shapes of installation walls and different distances between the installation walls and a measured position are solved. The device comprises a mounting plate; the left side of the mounting plate is connected with two groups of clamping blocks through two pairs of clamping connecting rods; the upper part of the mounting plate is rotationally connected with a group of clamping adjusting knobs; and the right side of a sliding seat is rotationally connected with a group of gravity detection pieces. The device canbe fixed in wall environments with different widths, is simple to use and convenient to operate, can realize horizontal swinging, up-down rotation, left-right extension and the like, can be used in different environments, and is high in adjusting capacity, high in adaptability and convenient to use.

The invention relates to an outdoor foldable dining table. The rear side bottom of a tableware box is hinged to the rear side bottom of a storage box, one end of a buckle is hinged to a front side plate of the storage box, the other end of the buckle is clamped to a front side plate of the tableware box, a handle is hinged to the front side end of the storage box, sliding grooves are formed in thepositions, close to the tops, of two side plates of the tableware box and the storage box, two cover plates are installed in the sliding grooves of the tableware box and the storage box respectivelyand can slide left and right along the sliding grooves, a plurality of parallel partition plates are arranged in the tableware box and the storage box, bottom frame storage grooves are formed in the bottoms of the tableware box and the storage box, and bottom frames are arranged in the bottom frame storage grooves and hinged to the tableware box and the storage box through rotary supports respectively. The outdoor foldable dining table is reasonable in structural design and convenient to carry due to the foldable design; besides, by arranging the tableware box and the storage box, tableware can be conveniently stored, and the use effect is good.

The invention provides a lifting and pressing type megaphone used in an imaging department. The lifting and pressing type megaphone comprises an installation base, a lower sliding groove and an inclined strut connecting rod. Three pairs of lifting connecting rods are hinged to the front end face and the rear end face of the upper portion of the mounting base in sequence. The upper end faces of thetopmost set of lifting connecting rods are jointly connected with a set of bearing plates. The bottom of the bottommost group of lifting connecting rods is hinged with one group of lower connecting rods; and the bottoms of the lower connecting rods are hinged with a pedal of the pedal switch. The device adopts a lifting structure, foot operation is adopted, a hand action is avoided, and two handsare released, actions of hands will not be affected, the operation is simple, and the working efficiency is improved; the lifting and pressing type megaphone has the advantages of being high in folding rate, capable of being folded when not used, capable of reducing occupied space, capable of changing the placing angle of the megaphone, convenient to megaphone, convenient to use, better in adjusting performance, capable of being used in a handheld mode and a placing mode, and capable of improving using flexibility.

The invention discloses a horizontal opening and closing roof structure. The horizontal opening and closing roof structure comprises a foldable roof bracket. The foldable roof bracket comprises more than two horizontal space shear type mechanisms, more than two longitudinal chain-shape shear type mechanisms and two full-length connecting rods, wherein the two full-length connecting rods are located on a roof frame and slide horizontally. Each horizontal space shear type mechanism is composed of upper chord arches, supports and an inhaul cable. Each support is composed of a plurality of secondshear mode hinge units, telescopic bars and flexible cables. The upper ends of the supports are arranged on cross hinged joints of an upper chord arch first shear type hinge units. The longitudinal chain-shape shear type mechanisms are connected to the upper chord arch and used for adjusting the distance between the two adjacent upper chord arches. Compared with the prior art, the horizontal opening and closing roof structure is simple in unfolding and folding type, convenient to drive and good in stress performance, the horizontal opening and closing roof structure has the advantages of convenient design and construction and the like, so as to well meet the requirements of different functions of a roof opening and closing of different buildings, the horizontal opening and closing roof structure can expanse and contract freely, has large ratio of expansion and contraction, and is specifically suitable for medium and small span buildings.

The invention discloses a building platform capable of adjusting an indoor decoration building, and relates to the technical field of building construction. The problems that an existing building platform is generally of a flat plate structure, needs to go up and down the building platform frequently in use, is inconvenient to go up and down, is limited in folding capacity, cannot be folded well, and is inconvenient to carry and store are solved. The building platform capable of adjusting the indoor decoration building comprises platform top plates, wherein the outer sides of the two sets of platform top plates on the left side and the right side are each connected with a set of supporting legs through hinges, the bottom of each platform top plate is connected with four pedal connecting rods in a hinged mode, the bottoms of the four sets of pedal connecting rods are jointly connected with a set of pedal mounting bases in a hinged mode. According to the building platform capable of adjusting the indoor decoration building, step pedals are additionally arranged, so that workers can get on and off the platform conveniently, use is more convenient, convenience is improved, meanwhile, pedal supporting legs are additionally arranged, the supporting capacity is improved, the stability of the platform is improved, and meanwhile the platform has the good folding capacity, is high in folding rate and is convenient to carry and store after being folded.