21results about How to "High structural efficiency" patented technology

The invention relates to a wing connection device for connecting an outer wing to a central wing and comprising a triple joint comprising a first joint, a second joint and a third joint, wherein the first joint is fixed to a central wing rear spar of the central wing, the second joint is fixed to an outer wing rear spar of the outer wing and the third joint is fixed to a docking rib web of the outer wing, and a rear strut plate fixed to a rear spar frame of the central wing. In this way, by fixing the rear strut plate to the rear spar frame of the central wing, the load from the outer wing can be spread, so that the stress level is reduced, the structural efficiency is improved and the deformation of the connection structure is reduced. For example, the rear strut plate spreads the upward load and spreads the load to the fuselage frame and via the fuselage frame to the fuselage. The invention also relates to an aircraft comprising such a wing connection device and to a method of connecting wings.

This application provides a multi-layer tension cable net floating platform to solve the problems of heavy weight and difficult tensioning construction of existing floating platforms. It includes a central column and pressure rings and buoyancy rings spaced apart from top to bottom, coaxially arranged with the central column. The pressure rings and buoyancy rings are connected by several first support rods. The top of the central column extends beyond the upper surface of the pressure rings, and the bottom of the central column is located between the pressure rings and buoyancy rings. Several first and second cables are respectively arranged between the pressure rings and the top and bottom of the central column, and several third cables are arranged between the buoyancy rings and the bottom of the central column. The first support rods, first cables, second cables, and third cables are all arranged in a circular array along the axis of the central column. By using multiple cables, this application significantly reduces the weight of the floating platform while ensuring its strength, thus saving costs.

The utility model discloses a drying device for cattle bone powder production. The drying device comprises supporting legs, a shell is installed at the top ends of the supporting legs, a stirring mechanism is installed in the shell, a stirring shaft is installed at the top end of a servo motor, a rotating block is installed at the top end of the stirring shaft, and scrapers are installed on the two sides of the rotating block. According to the cattle bone powder drying device, the servo motor is installed at the bottom end of the shell, the servo motor works to drive the stirring shaft to rotate, the stirring shaft rotates to drive the stirring blades to rotate, the stirring blades rotate to stir cattle bone powder in the shell, the cattle bone powder is dried more evenly, the cattle bone powder structure efficiency is higher, and meanwhile, the cattle bone powder drying efficiency is improved. The stirring shaft rotates to drive the rotating block to rotate, the rotating block rotates to drive the scraping plate to rotate, the scraping plate rotates to treat and stir the surface of the screen, the screening effect of the cattle bone powder on the surface of the screen is better, and therefore the purpose that the drying device for cattle bone powder production facilitates improvement of the processing efficiency of the cattle bone powder is achieved.

The application discloses a boride double-scale synergistically reinforced high-manganese steel-based wear-resistant casting and a preparation method thereof, and belongs to the technical field of wear-resistant metal materials and special casting. The casting takes high-manganese steel as a matrix, adopts micron-level TiB2 and nanometer-level ZrB2 to form double-scale boride reinforcing phases, controls the distribution of the reinforcing phases through a powder core wire mesh weaving technology, and forms a metallurgical bonding interface through spray deposition and isothermal annealing. The synergistic improvement of tensile strength, impact toughness and wear resistance is realized. The product is suitable for high-stress wear environments in the mining, metallurgy, building material and other industries, effectively solves the technical pain point that the strength and toughness of traditional high-manganese steel are difficult to be considered, the process is stable and controllable, and differential strengthening can be realized, and the product has industrial application value.

The invention provides a handle fixing assembly for a tool for riding instead of walk and the tool for riding instead of walk. The handle fixing assembly comprises a support part, a tubular handle part, a pressing plate and a fixing piece, the pressing plate comprises a first end and a second end, the first end extends towards the tubular handle part and is inserted into the insertion hole, the second end of the pressing plate extends in the direction away from the tubular handle part, and the first end and the second end have a height difference; the horizontal height of the second end is smaller than that of the first end, the pressing plate is provided with a connecting area located between the first end and the second end, the supporting structure is located below the pressing plate, and the supporting structure provides a supporting face for supporting the second end; the fixing piece fixes the pressing plate and the support part through the connecting area, and the fixing piece applies connecting force which is at least downward in the height direction to the pressing plate. The problem that in the prior art, a handle fixing assembly is poor in reliability is solved.

The utility model discloses a lattice formula concrete wind power tower column foundation, including a plurality of around wind power tower vertical center line circumferential uniform distribution's foundation structure, the foundation structure includes the foundation main part buried in the foundation and is used for and the wind power tower bottom tower column links the platform column, the platform column is located in the foundation main part, the outer wall of platform column and the inner wall of foundation main part are equipped with a plurality of first connecting plate, and the outer wall between adjacent foundation main part is equipped with the second connecting plate for realizing the connection of adjacent foundation main part. The utility model discloses a lattice formula concrete wind power tower column foundation has the advantages such as light self weight, simple structure, reasonable stress, high anti -pulling bearing capacity, good economy, convenient construction etc.

The present application belongs to the field of microbial technology, and particularly relates to a synbiotic preparation of lactobacillus helveticus, a preparation method and application thereof. The synbiotic preparation of lactobacillus helveticus provided by the present application is a microcapsule preparation prepared by embedding lactobacillus helveticus as probiotics and sialylated human milk oligosaccharide as prebiotics in turn by using sodium alginate and chitosan. The lactobacillus helveticus is lactobacillus helveticus HL88. The lactobacillus helveticus HL88 used in the present application has better lysis activity on sialylated human milk oligosaccharide, and can effectively improve the utilization efficiency of sialylated human milk oligosaccharide. Further, the lactobacillus helveticus and sialylated human milk oligosaccharide are complexly embedded in the present application, which can play a synergistic metabolic role, thereby effectively promoting the brain development process. Therefore, the present application can provide a treatment idea for improving brain development retardation, and can provide a technical basis for developing probiotic drugs for promoting brain development.

The aerosol generating device comprises a first shell structure and a second shell structure, wherein the first shell structure comprises an atomizing space and a first aerosol flow channel communicated with the atomizing space; a second housing structure comprising a chamber containing an aerosol-generating substance, an air inlet for discharging aerosol, and a second aerosol flow channel communicating with the air inlet from the first aerosol flow channel, and detachably coupled to the first housing structure; the core material is located in the atomization space; and an absorbent member including a protruding region protruding from the second housing structure and delivering the aerosol-generating substance from the chamber to the core material. Wherein the first aerosol flow channel may be arranged in a direction around the core material and the protruding region of the absorbent member.

The invention belongs to the technical field of aqueous zinc metal batteries, and particularly relates to a zinc negative electrode protection layer for regulating and controlling zinc ion transmission based on a bimetal MOF channel, a preparation method of the zinc negative electrode protection layer, a composite zinc negative electrode and an aqueous zinc metal battery. Zirconium salt and zinc salt are mixed in a solvent environment, an organic ligand is added, a UiO-10 Zn material is synthesized through a solvothermal reaction, and then the surface of zinc foil is coated with the UiO-10 Zn material to form a protective layer. The transmission of Zn < 2 + > at an electrode-electrolyte interface can be effectively promoted, the migration ability of Zn < 2 + > is improved by Zr-Zn bimetal sites, and the uniform deposition of zinc is guided by three-dimensional ordered pore channels. When the prepared electrode total battery is matched with an NH4V4O10 positive electrode, the specific capacity is kept at 108.8 mAh g <-1 > after 200 cycles under the current density of 1 A g <-1 >.

This invention relates to the fields of microbial fermentation and genetic engineering technology, specifically disclosing a method for preparing human type III collagen fragments. Based on Pichia pastoris, this invention constructs a multidimensional synergistic expression system of "molecular chaperone co-expression - precursor supply - osmotic pressure adaptation regulation," reducing the structural instability of collagen fragments during secretion and post-processing, and constructing an expression system suitable for stable and efficient secretion of collagen fragments. The method described in this invention can achieve efficient extracellular secretory expression of human type III collagen fragments, and the obtained protein has high structural uniformity and stability, with a protein yield of up to 6.55 g / L under 5 L fermenter conditions. The method described in this invention is suitable for the large-scale preparation of human type III collagen fragments and provides a new technical solution for obtaining collagen products with high structural uniformity and good functional activity.

The utility model discloses a wharf bridge -type crane three -span steel truss support optimization structure of mixed constraint adopts three -span continuous steel truss form, and the supporting leg adopts mixed constraint connection mode with main truss, that is, adopts articulated constraint in longitudinal direction, adopts elastic constraint in transverse direction, adopts rigid constraint in vertical direction, and the foundation support adopts combined structure, and the upper part is spherical hinge support, the middle part is shock -absorbing rubber pad layer, and the lower part is anchor bolt group, and stiffened rib plate is arranged at each component connecting joint in structure, and the stiffened rib plate is radially arranged, and the node is provided with stiffened rib plate, the support optimization structure provided by the utility model can combine the constraint characteristics of different directions, improve the stability, the anti -seismic performance and fatigue life of structure, optimize truss stress distribution simultaneously, reduce the material consumption, to adapt to the long -term use demand under the complex working condition of port. It is suitable for large -span port bridge -type crane, and can significantly improve the safety and economy of equipment.

The utility model discloses a flue gas condensation recovery structure of gas heating water heater belongs to gas heating water heater technical field, including the shell, is equipped with burner in the shell, is equipped with the first heat exchanger on the burner, is equipped with the first heat pipe that passes to the first heat exchanger, is equipped with the fixed clamping edge on the first heat exchanger, installs the tapering channel on the first heat exchanger, and the fixed sleeve is equipped with on tapering channel periphery, and the fixed sleeve periphery is equipped with a plurality of fixed buckles, is equipped with the flow guide channel on tapering channel, and the through groove is seted up on the one side of flow guide channel, and the water diversion groove is welded in the through groove, and the drain pipe is equipped with on the one side second heat exchanger of water diversion groove, is equipped with the second heat exchanger in flow guide channel, and the second heat pipe that passes is equipped with on the second heat exchanger, and the fan is equipped with on the other side of flow guide channel, through the setting of tapering channel and fixed buckle, make the user can stabilize the connecting component and optimize flue gas flow, solve the traditional gas heating water heater flue gas and heat exchanger contact not enough problem.

The application discloses a controllable energy-absorbing CH-type corrugated stand column and an aircraft fuselage structure, and belongs to the technical field of aircraft structures. A H-type corrugated section is arranged in the middle section of the CH-type corrugated stand column, and upper and lower ends are C-type connecting sections, which are connected with a floor beam and a fuselage frame through corner pieces, respectively. The aircraft fuselage structure comprises the CH-type corrugated stand column and the fuselage frame, and a plurality of induction openings are arranged at the upper edge strips of the fuselage frame. Through the combined action of the CH-type corrugated stand column and the fuselage frame, a plurality of plastic hinges are generated at the induction openings, so that stable progressive failure of the CH-type corrugated stand column under pressure is ensured, controllable failure and energy absorption stability of the aircraft fuselage frame section are realized, the energy absorption efficiency of the structure and the landing performance are greatly improved, and the problems of uncontrollable deformation of the thin-walled structure of the aircraft fuselage lower opening section and low energy absorption efficiency are solved.

The utility model discloses a power system and vehicle relates to vehicle body structure technical field, wherein, power system is used to set up between two longitudinal beams of vehicle, power system includes range extender and auxiliary frame, range extender includes engine and generator, and engine and generator are along the extension direction of longitudinal beam arrangement, and the length direction of range extender is identical with the extension direction of longitudinal beam, the auxiliary frame presents the frame structure, and range extender is connected in auxiliary frame through suspension assembly, and the auxiliary frame is used to be connected in longitudinal beam, and supplies the suspension of vehicle installation. The utility model provides technical scheme to reduce the development cost of increasing because of the alteration longitudinal beam span, and guarantees the crash safety performance and the driving stability of vehicle.

The utility model discloses a foaming board for ventilation and heating and a unit shell, the foaming board for ventilation and heating is used for abutting against and sealing a step structure, the step structure is provided with a bottom face and a side face, the foaming board comprises a board body, a protrusion is arranged on the peripheral side of the outer edge of the board body, the protrusion comprises a first end face and a second end face, and the first end face and the second end face are arranged on the board body. The first end face is used for abutting against the bottom face, a strip-shaped elastic sealing piece is arranged on the second end face, the elastic sealing piece is used for extruding the side face, and sealing between the side face and the second end face is achieved by extruding the side face through the elastic sealing piece. The foam board can be installed with the step structure in a matched mode through the protrusions on the outer edge, the side wall of the step structure is completely sealed through the sealing pieces on the protrusions, and due to the fact that the sealing pieces on the periphery of the foam board are in interference fit with the step structure, the sealing pieces are extruded to deform to form a sealing face to achieve the waterproof effect. The structure is higher in efficiency.

The present application relates to a kind of aircraft windscreen frame skeleton assemblies, comprising: window frame skeleton, window frame skeleton includes around the main windscreen of aircraft main windscreen mouth frame and around the side windscreen of aircraft side windscreen mouth frame, and main windscreen mouth frame and side windscreen mouth frame are integrally formed with corresponding main windscreen and side windscreen by the form of tight fit installation cooperation, realize the load transfer of aircraft.Two main windscreen mouth frame directly contact and are connected, and main windscreen mouth frame and side windscreen mouth frame are also directly contacted and are connected.The butt joint design of the mouth frame of four integral window frame skeletons and the use of connecting band plate at mouth frame butt joint section make the force transmission route of window frame at connection section more directly, realize higher transmission efficiency, higher structural efficiency, under the premise of meeting the bearing design demand, since window frame section form is simple, manufacturing difficulty and manufacturing cost are greatly reduced.

The invention discloses a carbon cloth-based composite material, a preparation method and application in a supercapacitor, and belongs to the technical field of supercapacitor electrode materials, and the method comprises the following steps: dissolving nickel nitrate hexahydrate, copper nitrate pentahydrate and an organic ligand containing carboxyl and amino in N-methyl pyrrolidone, adjusting the pH value to 6.07.0, and stirring to form a uniform mixed solution; the preparation method comprises the following steps: carrying out ultrasonic and microwave synergistic activation on pretreated carbon cloth, immersing the carbon cloth in a mixed solution for gradient heating solvothermal reaction to obtain a flexible Ni-Cu bimetal MOF / carbon cloth composite material, immersing the flexible Ni-Cu bimetal MOF / carbon cloth composite material in a composite vulcanizing agent solution prepared from thioacetamide and potassium sulfide, and sequentially carrying out segmented water bath vulcanization and gradient calcination treatment to obtain the flexible Ni-Cu bimetal MOF / carbon cloth composite material. The carbon cloth-based composite material is obtained. The flexible core-shell porous sulfide / carbon cloth composite material with high specific surface area, high specific capacitance, excellent cycle stability and low internal resistance is prepared, the process is mild, the solvent can be recycled, and the composite material has good industrial economy and environmental friendliness.

This invention relates to a composite sodium-replenishing material, its preparation method, an electrode, and a battery. The composite sodium-replenishing material comprises a matrix, a sodium-replenishing agent body, and a conductive reinforcement. The matrix is ​​porous carbon fiber; the sodium-replenishing agent body is distributed on the surface and within the pores of the matrix; the conductive reinforcement is partially embedded within the sodium-replenishing agent body and partially located on its outer surface. The preparation method of the composite sodium-replenishing material includes the following steps: hydrothermal treatment of a dispersion; the dispersion comprises porous carbon fibers, sodium salt, and a conductive reinforcement. The composite sodium-replenishing material of this invention can improve the initial efficiency and capacity retention of sodium-ion batteries.

The invention discloses a motor lifting device and method for peanut sprouting vegetable planting, and belongs to the technical field of peanut sprouting vegetable planting device.The motor lifting device comprises a machine shell, a motor, a lifting driving mechanism, a cam transmission mechanism and a shifting plate driving mechanism are installed in the machine shell, and the lifting driving mechanism is used for lifting a multi-hole-site planting plate; the shifting plate driving mechanism is used for limiting or releasing limiting of the multi-hole-site planting plate, and the lifting driving mechanism and the shifting plate driving mechanism are driven through a cam transmission mechanism. A cam transmission mechanism is utilized to enable the lifting action to be matched with the limiting action, so that the bottommost multi-hole planting plate in the multi-hole planting plate storage area is conveyed to a transmission belt to be conveyed; the whole device is high in structural efficiency, good in stability and driven by a pure mechanical structure, an electrical control system does not need to be additionally installed, the device cost is effectively reduced, meanwhile, the device reliability is improved, the maintenance cost is greatly reduced, and the efficiency is greatly improved.

The utility model provides a reinforced concrete lining structure with displacement-avoiding nodes, which comprises an artificial chamber surrounding rock and a lining arranged in the surrounding rock, and a plurality of displacement-avoiding node prefabricated members are connected after annular lining main reinforcements are broken. The displacement joint prefabricated part comprises a plurality of alternate prefabricated short steel bars and prefabricated steel plates used for penetrating the prefabricated short steel bars, the prefabricated short steel bars on the same side are horizontally arrayed and inserted into the same prefabricated steel plate, and the prefabricated steel plates are used for limiting axial and radial displacement of the prefabricated short steel bars along the artificial chamber. The displacement node prefabricated part and the lining main reinforcement are integrally poured with concrete, the annular tensile deformation of the concrete along with linear displacement of the lining main reinforcement reaches tensile deformation within the annular controllable range of the artificial chamber, it is ensured that the annular tensile deformation of a lining structure outside the displacement node becomes small, and cracks of lining concrete are controllable; the bearing capacity of the surrounding rock is fully exerted, and the engineering economy of the artificial gas storage chamber is improved.

The invention provides a semi-closed supercritical CO2 Brayton power generation system and method, and belongs to the technical field of energy. The semi-closed type supercritical CO2 Brayton power generation system comprises a supersonic speed gas-liquid separator used for cooling, depressurizing and separating supercritical CO2 obtained after heat exchange of a heat regenerator and separation of a moisture separator in a semi-closed type Brayton power generation cycle, and working medium CO2 gas and liquid CO2 are obtained; and the compressor is used for converting the working medium CO2 gas into supercritical CO2 and recycling the supercritical CO2 in the semi-closed Brayton power generation cycle.