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

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 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 vertical detection device for building construction detection with a marking function, relates to the technical field of detection equipment, and solves the problem that the existing vertical detection device generally needs to be fixed on the wall to detect buildings during use. , because the environment of each measurement is different, because the shape of the installation wall is different, and the distance between the installation wall and the measured position is different, it is very inconvenient to install and use, and the problem of troublesome operation includes the installation board; the installation board Two sets of clamping blocks are respectively connected to the left side through two pairs of clamping links; a set of clamping adjustment knobs is rotatably connected to the upper part of the mounting plate; a set of gravity detection parts is rotatably connected to the right side of the sliding seat. The present invention can be fixed in wall environments with different widths, and is easy to use and convenient to operate. At the same time, the present invention can realize horizontal swing, up and down rotation, left and right stretching, etc., and can be used in different environments, with strong adjustment ability, strong adaptability, and convenient use .

The present invention provides a method for expressing antimicrobial peptides through fusion of SUMO, that is, the ubiquitin-like protein modification molecule SUMO and antimicrobial peptides are made into a fusion protein, so that the antimicrobial peptides can be recombined and expressed more effectively. The amino acid sequence of the antimicrobial peptide is SEQ ID NO:1. The invention adopts the sumo fusion expression method to express the antibacterial peptide LLv with strong antibacterial activity in Escherichia coli. By fusing with sumo, the toxicity to the host bacteria is reduced, the folding rate and expression yield are improved, and soluble expression is successfully achieved.

The invention discloses an adjustable building platform for interior decoration buildings, relates to the technical field of building construction, and solves the problem that the existing building platform is generally a flat plate structure, and the building platform needs to be up and down frequently during use. The existing construction platform has limited folding capacity, cannot be folded well, and is inconvenient for handling and storage, including the platform top plate; the outer sides of the two sets of the platform top plates on the left and right sides are hingedly connected with a set of supporting legs; Four groups of pedal connecting rods are hingedly connected to the bottom of the platform top plate; The invention adds a step pedal, which is convenient for workers to get on and off the platform, which is more convenient to use and improves the convenience. At the same time, by adding the pedal legs, the supporting capacity and the stability of the platform are improved. At the same time, the invention has good folding ability and folding rate Tall, folded for easy handling and storage.

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 discloses a hydraulic device based on controlling engineering vehicles, relates to the technical field of engineering vehicles, and solves the problem that the telescopic distance of the legs of the hydraulic support device of the existing engineering vehicles is short, the supporting capacity is poor, and at the same time, each hydraulic support device needs to be adjusted in sequence during use. Adjusting the outriggers and the troublesome operation include the main body of the construction vehicle; a set of drive motors is fixedly connected to the inside of the rear of the main body of the construction vehicle; a set of intermediate transmission shafts are rotatably connected to the rear of the main body of the construction vehicle; the construction vehicle The left and right sides of the main body are rotatably connected with a group of driving screws; the outer side of the secondary swing rod is fixedly connected with a group of supporting hydraulic cylinders. The device has a high folding rate, a relatively large unfolding arm span, and has better support capacity. At the same time, the support points are symmetrically distributed after unfolding, which improves the stability of the support. It is easy to use and can realize rapid unfolding and shrinking. The rod expands to increase the contact area and improve the support capacity.

The invention discloses a foldable floor integration table and chair module. A folding device used as a table, a chair or the ground is arranged inside a box body. When the box body is not in use, a top plate of the box body is used as a floor, and when the box body is in use, the folding device is unfolded and used as the table or the chair. The folding device comprises a connecting rod type moving and supporting mechanism, a lifting mechanism, a table and chair mechanism and a folding supporting switching piece. A planar four-bar structure is formed by a small piece floor, a large piece floor, a supporting plate and a box body backside plate. When the folding device is unfolded for using, the small piece floor and the large piece floor are located on the top surface of the box body, and are used as the unfolded floor. The joint of the small piece floor and the large piece floor is supported by the folding supporting switching piece. According to the foldable floor integration table and chair module, the interconversion and modularized processing among the table, the chair and the floor is achieved, and the concave pit problem left on the ground caused by a prior similar ground lifting mechanism is solved. The foldable floor integration table and chair module is convenient to convert, the folding rate is high, changes on the layout of the tables and chairs in a classroom are achieved, the ornamental value is high, and different functions and purposes of a room are achieved through the combination and conversion of the module.

The invention discloses a miniature flapping-wing aircraft with a single-degree-of-freedom foldable wing, comprising a single-degree-of-freedom foldable wing, a gear transmission system and a motor drive module; the motor drive module and the gear transmission system are installed on the frame of the aircraft, The shaft is connected; the foldable wing and the gear transmission system are connected by a crank rocker mechanism to realize the synchronous flapping movement of the two foldable wings. The folding wing designed based on the origami theory of the present invention makes the folding wing have a greater folding rate, and the folding wing can be folded to reduce the storage space when not working, and the folding wing only has a single degree of freedom, which can be achieved by a tape measure spring The automatic unfolding and locking of the folding wings is realized, so that the folding reliability is significantly improved.

The invention belongs to the field of aircraft, and specifically discloses a bionic folding wing based on 4D printing and its preparation method and application. The folding wing sheath of the bionic folding wing is connected with the bionic flapping wing skeleton, which is used to protect and store the bionic folding wing in a folded state. The flapping wing skeleton can be stretched and folded according to the temperature of the water in the water circulation flow channel. The water circulation control system is connected with the water circulation flow channel to control the temperature of the water in the water circulation flow channel. The flapping wing film covers the surface of the bionic flapping wing skeleton. The bionic folding wing based on 4D printing provided by the present invention can ensure that the bionic folding wing has a great folding rate, and at the same time only need the water circulation control system to adjust the temperature of the water in the water circulation channel to realize the unfolding and folding of the bionic folding wing, which can avoid Using a cumbersome mechanical structure, it has the advantages of simplicity, high efficiency, high mobility, and intelligence.

The invention provides a folding storage device capable of being folded and unfolded in a linkage mode. The folding storage device comprises a middle telescopic unit, a top folding unit, a first sidetelescopic unit, a back folding unit, a second side telescopic unit and a bottom folding unit. The middle telescopic unit comprises a middle telescopic frame, a transverse supporting plate, a middle supporting column, a handle, a telescopic rack, a driving gear, a connecting rod and a third sliding block; and the top folding unit and the bottom folding unit are limited through a limiting structureon the middle telescopic frame. The first side telescopic unit comprises a first side extension frame, a first side supporting column and a ninth connecting rotating shaft. The second side telescopicunit and the first side telescopic unit are symmetrically arranged, the second side telescopic unit comprises a second side extension frame and a second side supporting column, and the back folding unit is rotationally connected with the first side supporting column through a ninth connecting rotating shaft and a connecting base corresponding to the ninth connecting rotating shaft. According to the device, the folding rate can be increased to reduce the occupied space, folding and unfolding can be conducted easily and rapidly, and rigidity is guaranteed.