131results about How to "Increase loading capacity" patented technology

This invention relates to a high-precision data acquisition, processing, and magnetic field drive system, mainly comprising a data acquisition module, a processing module, a magnetic field drive module, a power supply module, and a host computer. The data acquisition module converts external analog signals into digital signals and transmits them to the processing module. The processing module includes a processing unit, a high-stability temperature-controlled crystal oscillator, an external clock signal interface, a DDR chip, Flash memory, a high-speed connector, and a digital power supply module. This module performs digital processing such as filtering and phase-locked loop (PLL) on the signals. The host computer can communicate with the FPGA core processing module via both Ethernet and serial ports to control the bias, amplitude, and frequency of the signals generated by the magnetic field drive module, display the read-back online data, and generate real-time curves. This invention realizes a low-cost, high-precision NMR gyroscope magnetic field control system, achieving high-precision closed-loop control of the NMR gyroscope's magnetic field.

The utility model relates to an improved two-section sliding rail which comprises an outer rail, an inner rail arranged in the outer rail and a ball assembly arranged between the outer rail and the inner rail, the length of an overlapping area formed by the inner rail and the outer rail after the inner rail is fully drawn out is matched with the length of the ball assembly, and a reinforcing mechanism is arranged in the overlapping area. A first positioning mechanism is arranged on the inner side of the outer end of the outer rail coinciding with the outer end of the coincidence area, a second positioning mechanism is arranged on the inner side of the inner end of the outer rail, a third positioning mechanism is arranged on the inner side of the outer rail between the first positioning mechanism and the second positioning mechanism, and the inner rail can be fully inserted into the outer rail. The sliding rail solves the problems that when the inner rail is drawn out of the outer rail, the overlapping area of the inner rail and the outer rail is small, the mechanical strength is not enough when the inner rail carries heavy load, and bending, deformation or sliding rail disengagement are prone to occurring in an existing short two-section sliding rail. The first hoop sleeve, the second hoop sleeve and the reinforcing plate are simple in structure, easy to assemble, low in cost and high in practicability.

A double servo direct connection driving mechanism of Z axis of numerical control gantry machine tool, it contains a slide, a machining spindle and a driving unit, the slide has a combination board and two combination columns, the combination board and the combination columns form a combination groove together, the machining spindle is vertically placed in the combination groove, the driving unit includes two driving motors and two screw rods, each driving motor is arranged on both sides of the machining spindle and is located on the same axis with the machining spindle, thereby, the driving motor is arranged on both sides of the machining spindle and is located on the same axis with the machining spindle, and the machining feeding efficiency is effectively improved.

This invention relates to the field of industrial processing technology and discloses a drilling machine for processing hardware parts. It includes a movable plate, a first electric telescopic rod fixedly connected to the left side of a fixed plate, a sliding rod fixedly connected to the bottom of a first fixed block, a pressing rod fixedly connected to the left side of the sliding rod, a transmission rod movably connected to the outside of the first fixed block, a telescopic spring fixedly connected inside a slide groove, a second electric telescopic rod fixedly connected inside a collection box, a pressure plate slidably connected inside the collection box, a buffer frame fixedly connected to the upper part of the pressure plate, and a buffer spring movably connected inside the buffer frame. During processing, the first electric telescopic rod drives the sliding block to move. Through the cooperation of the transmission rod and the fixed rod, and the telescopic spring, waste material in the collection box can be quickly dumped, thus achieving automatic waste dumping without manual labor and improving work efficiency.

This utility model provides a hinge connection structure, including a cabinet, a door, a first hinge, and a second hinge. The first hinge includes a main support plate, one end of which is fixedly connected to the cabinet, and the other end of which is rotatably connected to a wheel. The wheel is fixedly connected to the door. A cam is provided on the wheel, and the working surface of the cam has at least three concave surfaces, with a convex surface between adjacent concave surfaces. A roller is movably connected to the main support plate, and an elastic element is provided between the main support plate and the roller. The elastic element always tends to allow the roller to abut against the working surface of the cam and to stop at the concave surface. The second hinge includes a hinge plate and an eccentric wheel. One end of the hinge plate is fixedly connected to the cabinet, and the other end is connected to a hinge shaft. One end of the eccentric wheel is fixedly connected to the door, and the other end of the eccentric wheel is fitted with a matching bearing between it and the hinge shaft. Compared with the prior art, this utility model has the advantages of simple structure, high strength, and long service life.

The utility model belongs to the technical field of bean curd production equipment, and relates to bean curd shaping, pasteurization and cooling equipment which comprises a rack, a circulating conveying chain is arranged on the rack, and the chain sequentially passes through an upper layer heating shaping area and a lower layer heat exchange cooling area along a conveying path. A plurality of side opening type box carrying units for carrying bean curds are arranged between the chains, the box carrying units are tightly arranged in the conveying direction and are conveyed along with the chains in a circulating mode, a feeding unfolding area is formed at the upper corner of the front conveying end of each box carrying unit, a discharging unfolding area is formed at the lower corner of each box carrying unit, and a transition unfolding area is formed at the corner of the rear conveying end of each box carrying unit. Openings of the box carrying units of the feeding unfolding area and the discharging unfolding area face downwards, and openings of the box carrying units of the transition unfolding area face upwards. The bean curd shaping, pasteurizing and cooling equipment provided by the utility model has the advantages of simple structure, large loading amount and high automation degree.

The utility model belongs to tunnel construction technical field especially relates to a rubble carrying device for tunnel construction, the collection and loading efficiency of rubble in tunnel construction is improved significantly, the horn -shaped collection cylinder of device top can be specially enlarged rubble and put into space, especially adapt to the relatively narrow working environment in the tunnel, effectively reduce the situation of falling due to space limitation when rubble feeding, reduce material loss and the additional workload of manual cleaning fallen rubble, at the same time, the rubble paddle of the rotating shaft side wall in the vehicle body can crush the large stone block input, avoid the large rubble to occupy too much loading space, the lower stirring paddle can further separate the broken dust and the broken block, make the broken block distribute more evenly, accumulate more closely in the placing cylinder, the cooperation of both can greatly improve the overall loading capacity of the device, reduce the round trip transport frequency caused by insufficient single carrying capacity, improve the construction efficiency.

The present application relates to the technical field of pesticides, and discloses a phase change eutectic carrier embedded with a photothermal agent as well as a preparation method and application thereof.The phase change eutectic carrier embedded with the photothermal agent mainly comprises a photothermal agent, a fatty acid, an organic solvent and water.The preparation process of the preparation is simple, the conditions are mild, a large number of additives are not needed, and the preparation can be quantitatively prepared.The dispersion and utilization rate of the bactericide can be improved through eutectic, and the effectiveness of the bactericide can be improved.The preparation is suitable for various application modes such as seed coating and soil treatment, can play various synergistic functions such as temperature response release, prolonging drug retention time, enhancing adhesion and permeability on the surface of pathogenic bacteria, and is a kind of green and efficient bactericide dosage form, which has a wide application prospect in green and intelligent agriculture.

The application discloses an insect exoskeleton morphological layup composite panel, a sandwich structure and a preparation method. The sandwich structure comprises two pieces of bionic layup composite panels and a piece of aramid honeycomb core layer. The bionic layup composite panel draws lessons from the spiral stacking microstructure of the insect exoskeleton, the layup design considers the symmetry and balance requirements of the composite material, a fixed rotation angle is introduced between adjacent fiber layers, and the rotation angle is taken as a period of 180 degrees, and after a plurality of periods are laid and heat-pressed and cured, the bionic layup composite panel is obtained. The bionic layup design effectively reduces the interlaminar shear stress of the composite material, weakens the inherent anisotropy of the composite material, and improves the transverse bearing capacity and impact resistance. The bionic layup composite panel and the aramid honeycomb core layer have the advantages of high specific strength, high specific stiffness, impact energy absorption, vibration and noise reduction, electromagnetic shielding and the like, and a structure and function integrated material with more excellent comprehensive performance is obtained, and the structure and function integrated material is expected to be widely used in main load-bearing structures of various spacecrafts.

The application discloses a kind of support steel column comprehensive processing device, mainly related to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.

This invention discloses a method, system, and motorcycle for spraying pesticides and fertilizers using a dual-purpose (land and air) manned unmanned flying motorcycle, relating to the interdisciplinary fields of agricultural plant protection and aircraft technology. The system includes land-air travel, manned operation, pesticide and fertilizer spraying, environmental perception, central control, and energy modules. The land-air travel module achieves seamless switching between land and air modes within ≤8 seconds and withstands winds of ≥6 levels. The central control module supports three modes: manned manual operation, remote control, and autonomous operation, and can dynamically adjust spraying parameters based on real-time environmental data. The energy module uses a hybrid power source (oil and electricity) to ensure long-term continuous operation. The method includes four stages: preparation, travel, spraying / fertilizing, and completion. Intelligent path planning and dynamic adjustment improve operational accuracy. This invention solves the problems of poor terrain adaptability, limited control modes, and insufficient accuracy of existing equipment, achieving integrated personnel transportation and precise operation. It boasts a ≥95% passability rate in complex terrain and a pesticide drift rate of ≤5%, significantly improving operational efficiency and reducing costs. It is suitable for agricultural plant protection operations in various complex terrains.

The utility model provides a freight unmanned plane relates to unmanned plane technical field, including fuselage for loading goods, the fuselage tail lower portion is equipped with rear aircraft wheel, rear aircraft wheel is connected with the fuselage through support rod, rear wing is located the fuselage tail upper portion and has upper reflex angle, front wing is located the fuselage head lower portion and has lower reflex angle, the front wing both sides lower portion is equipped with front aircraft wheel, tail push propeller is located the fuselage tail, vertical propeller is located the fuselage both sides, wherein, tail push propeller drives through the fuselage upper oil dynamic piston engine, vertical propeller drives through fuselage upper motor. A freight unmanned plane in the utility model, solved the problem that the prior art lacks a freight unmanned plane capable of stable vertical take-off and landing and long range and large load.

The application relates to the technical field of battery production and processing, and discloses a die cutting waste collecting device for battery production, which comprises a collecting box provided with a first screw rod, a pre-pressing box in communication with the collecting box, a second screw rod coaxially fixedly connected with the first screw rod and located in the pre-pressing box, an exhaust box provided with a plurality of first air vents and second air vents, the first air vents being in communication with the collecting box, the second air vents being in communication with the pre-pressing box, a compression box in communication with the pre-pressing box, a sealing plate arranged in the compression box, a driving piece arranged in the compression box and used for driving the sealing plate to seal or open the communication part of the pre-pressing box and the compression box, a pressing plate connected with one end of the sealing plate in the length direction, a collecting box provided with an opening and closing door, the collecting box and the compression box being in communication through the opening and closing door, a spacing for extruding waste being formed between the opening and closing door and the pressing plate, and exhaust holes being formed in the part of the collecting box close to the opening and closing door. The application can improve the collecting efficiency.

The utility model relates to the field of rotor support arm folding discloses a kind of rotor support arm electric folding and locking mechanism, including fuselage, at least two groups of support arm components are equipped on the fuselage, and support arm component includes first support arm unit and second support arm unit;First support arm unit includes first fixed support arm, first rotor support arm and first driving part, and second support arm unit includes second fixed support arm, second rotor support arm and second driving part, first fixed support arm one end and fuselage connection, other end and first rotor support arm rotary connection, second fixed support arm one end and fuselage connection, other end and second rotor support arm rotary connection, first driving part is used to drive first rotor support arm to the direction of being close to second fixed support arm rotation, and second driving part is used to drive second rotor support arm to the direction of being close to first fixed support arm rotation.Compared with prior art, structure is more simple, and rotor support arm can be effectively gathered.

The application provides a clamping block for rail connection, relates to the technical field of rail connection, and comprises a first connecting part for bolt connection, the bottom of the first connecting part is integrally formed with a first reinforcing protrusion, the two sides of the first connecting part are integrally formed with symmetrical second connecting parts, the lower part of each second connecting part is provided with an outward arc-shaped hook, and the starting position of the arc-shaped hook of each second connecting part is integrally formed with a second reinforcing protrusion. The first reinforcing protrusion and the second reinforcing protrusion improve the structural strength of the clamping block, enhance the load capacity of the clamping block, avoid damage of the clamping block caused by overloading due to wind, snow and other natural loads, effectively eliminate the safety hazards of battery panel falling and causing injury and damage, and ensure long-term stable operation of the solar system.

The invention discloses a frame which comprises a frame body, an enclosure frame arranged on the upper portion of the frame body and at least one footpath plate arranged on the peripheral side of a tank body, and the footpath plate is connected with the tank body and the enclosure frame to form an operation space and an overflow space. According to the frame, the footpath plate and the fence are arranged to form an operation space, workers can walk conveniently, the enclosure frame can play a role in protection, the working safety is improved, meanwhile, the footpath plate is connected with the tank body and the enclosure frame to form an overflow space, an overflow box does not need to be additionally arranged, the enough overflow space is provided for collecting liquid, and follow-up centralized treatment is facilitated. The other purpose of the invention is to disclose a container which is provided with the frame. The container is good in structural stability and has enough operation space and overflow space.

The invention discloses a steel bar net rack, a floor slab, a wallboard, an assembly and a construction method, and relates to the technical field of buildings. Comprising a reinforcing steel bar net rack formed by combining longitudinal net belts and transverse net belts, a floor slab and a wall plate which are formed by the reinforcing steel bar net rack and formworks, an assembly formed by combining the floor slab and the wall plate and a construction method of the assembly. Connecting ribs are reserved in the steel bar net rack, and on-site additional steel bar connection is not needed. The efficiency is high, the cost is low, the quality is controllable and the shock resistance is good; the field operation procedures and workload are reduced, the material cost and the labor cost are reduced, the efficiency is improved, the construction period is shortened, and the economical efficiency is improved.

The utility model relates to a modular leisure chair, which is characterized in that a seat frame, a backrest frame, armrest frames and back ear frames are respectively arranged in a modular seat cushion, a backrest, armrests and back ears of the chair, the backrest frame and the armrest frames are detachably arranged on the seat frame, and the back ear frames are detachably arranged on two sides of the backrest frame; a mounting seat is fixedly arranged at the lower part of the backrest frame, an air rod is arranged in the accommodating space, the output end of the air rod is connected with the connecting iron pipe, and the other end of the air rod is connected with the mounting seat; the air rod can act on the connecting iron pipe to drive the connecting piece assembly to act, so that the rear connecting iron piece is driven to rotate, the backrest frame can rotate by a certain angle to fall backwards, and the foot stool rotates by a certain angle to turn upwards. According to the scheme, the seat cushion, the backrest, the armrests and the back lugs in the seat are detachably connected and are convenient to disassemble and assemble, the loading quantity can be increased, transportation is facilitated, and the transportation cost is reduced; and a motor in the seat is replaced by the air rod, so that the manufacturing cost is saved.

A numerical control gantry machine tool Z-axis symmetry type track driving mechanism, it contains a slide, a processing spindle and a driving unit, the slide has a combination board and two combination columns, the combination board and the combination columns form a combination groove together, the inner side of each combination column is provided with at least one track groove, the processing spindle is vertically placed in the combination groove, a linear rail is arranged on both sides of the processing spindle corresponding to the position of each track groove, and each linear rail is arranged in each track groove, so that, since two linear rails are arranged on both sides of the processing spindle, not like the conventional processing spindle arranged on the rear side; therefore, the utility model, operation and maintenance are more convenient, the center distance of each linear rail and the processing spindle is closer, so that the load capacity and stability of the processing spindle can be improved, and the defects of the prior art are effectively overcome.

The utility model relates to the technical field of automobile wire and discloses high-soft high-strength copper-clad steel automobile wire for business car, include: conductor unit and insulating sheath, the insulating sheath is covered in the outside of conductor unit, the conductor unit includes inner stranding layer and outer stranding layer, the outer stranding layer concentric stranding constitutes with inner stranding layer, the outer stranding layer is stranding in the outside of inner stranding layer, the inner stranding layer is stranding constitutes by tensile metal wire, the outer stranding layer is stranding constitutes by conducting wire; The insulating sheath includes first insulating layer, metal braid, stress release ring and second insulating layer. The utility model discloses by setting up by tensile metal wire and conducting wire respectively stranding constitutes and concentric stranding's inner, outer stranding layer, guarantees conductivity and promotes tensile strength and flexibility, solves the problem that pure copper conductor wire is easy to break, reduces weight and improves efficiency, also overcomes the problem of aluminum conductor space occupation, and the outer layer insulating sheath structure realizes excellent insulation and mechanical protection, reduces the risk of breakage.

This application discloses a mobile support mechanism, including a movable frame movably mounted on a frame along the X-direction, a movable seat movably mounted on the movable frame along the Y-direction, a lifting device with a lifting rod mounted on the movable seat, and a support assembly. The upper end of the lifting rod is provided with a lifting seat, and the lifting device is used to drive the lifting seat to move along the Z-direction. The support assembly includes a support member mounted on the lifting seat and a support shaft mounted at the lower end of the support member. When used in conjunction with a driving device, this support mechanism can move simultaneously in the X, Y, and Z directions. It also has a compact overall structure and, compared to a gantry frame, is easier to move and offers better flexibility.

The utility model relates to the technical field of infrastructure construction auxiliary tools, in particular to a hoop for different pile diameters. Comprising an arc plate and a fastening bolt arranged at the end of the arc plate, and the arc plate comprises an arc plate section formed by connecting a plurality of arc plate chain links in series and connecting plates symmetrically arranged at the two ends of the arc plate section. The PHC pipe pile hoop can be suitable for various PHC pipe piles with different pile diameters, is good in universality, high in utilization rate, convenient to install and good in functionality, and is beneficial to saving construction cost, improving enterprise economic benefits and shortening the construction period; and the construction requirements of the cast-in-place cross beam can be met.

The utility model discloses a filter residue collecting device of a plate-and-frame filter press, which belongs to the technical field of auxiliary equipment of the plate-and-frame filter press and comprises a support frame used for supporting the plate-and-frame filter press, a filter residue collecting hopper used for collecting filter residues of the plate-and-frame filter press is welded inside the support frame, a cross rod is welded inside the filter residue collecting hopper, and the cross rod is connected with a support rod. A conical protection cover used for protection is installed at the end of the cross rod, a motor is installed on the inner top wall of the conical protection cover, an output shaft of the motor is connected with a connecting shaft through a coupler, a rotating disc is welded to the end, away from the motor, of the connecting shaft, and two rotating shafts are symmetrically connected to the periphery of the rotating disc; according to the filter residue collecting device of the plate-and-frame filter press, the crushing capacity of the filter residues is improved, more occupied space in the transportation process is reduced, the loading capacity of a transportation vehicle is increased, and the transportation frequency and cost are reduced.

This utility model discloses a wear-resistant corrugated cardboard box, including a box body, a bottom plate, and a baffle. Two sets of connecting plates are provided at each of the four corners of the upper surface of the bottom plate. Each set of connecting plates has a slot on one side and a threaded hole on another side. An elastic sheet is provided between the two sets of connecting plates, and rubber pads are provided on both opposite surfaces of the elastic sheet. An adhesive layer is provided on the upper surface of the bottom plate. Symmetrical insertion holes are provided on one side of the baffle, and bolts are threaded into the threaded holes. A cavity is formed inside the box body. This utility model involves placing the box body on the surface of the bottom plate and connecting and fixing it with the adhesive layer. Then, one side of the connecting plate is attached to the side of the box body. The baffle is then inserted into the slot, with the insertion hole on the baffle surface coinciding with the threaded hole. A bolt is screwed into the threaded hole, with one end of the bolt inserted into the insertion hole for fixation. Protection is provided by the elastic sheet and rubber pads between the two sets of connecting plates.

This utility model relates to an expandable folding trailer, comprising a trailer frame, an extension frame, and a stabilizing frame. The trailer frame includes a first column, a second column, a third column, a fourth column, a folding mechanism, and a base support mechanism; the four columns are arranged in a rectangular interval, with their lower ends connected to the base support mechanism; folding mechanisms are provided between the first and second columns, between the third and fourth columns, and between the fourth column and the first column. The lower end of the extension frame is rotatably connected to the lower ends of the second and third columns at a limited angle, and the upper end of the extension frame is detachably connected to the upper ends of the second and third columns. The stabilizing frame includes a telescopic rod assembly and a folding rod assembly, with both ends of the telescopic rod assembly and the folding rod assembly connected to the second and third columns, respectively. The stabilizing frame provides sufficient lateral tensile and support force to the second and third columns, preventing a decrease in trailer frame stability after the extension frame is folded down, thus improving the strength of the trailer frame.

The utility model relates to the field of underground equipment, and discloses an underground equipment transport vehicle which comprises a full-frame type hollowed-out chassis, and multifunctional equipment fixers are fixedly arranged on the two sides of the upper end face of the full-frame type hollowed-out chassis. Limiting mechanisms used for limiting the multifunctional equipment fixing devices are further installed on the two sides, located on the outer sides of the multifunctional equipment fixing devices, of the upper end face of the full-frame type hollowed-out chassis, and walking wheel pairs used for walking of the transport vehicle are installed at the front end and the rear end of the lower end face of the full-frame type hollowed-out chassis correspondingly. Coupler buffers used for being connected with a mine car and assisting in buffering impact force are installed at the middle points of the front end and the rear end of the full-frame type hollowed-out chassis. According to the utility model, the full-frame type hollow frame is adopted, so that ultra-large and ultra-high equipment can be transported. The underground transportation device has the advantages of large volume coefficient, small self-weight coefficient, short unloading and shunting time, large loading capacity, large trafficability of a loading station and an unloading station, and capability of improving the safety of underground transportation.

The application discloses a kind of stamping engine combustion chamber and storage tank integrated structure, including storage tank, hollow in storage tank interior, and the through hole is set in storage tank upper and is penetrated;Combustion chamber is set in through hole, and combustion chamber both ends respectively extend to the outside of storage tank, and the accommodating space that can accommodate fuel is formed between combustion chamber and storage tank;Through integrated design storage tank and combustion chamber, the whole that it is composed is pressure vessel structure, can carry certain internal pressure without structural damage, compared with the storage tank and combustion chamber that independent respectively in prior art, and the connecting structure and pipeline structure that a certain space is arranged between storage tank and combustion chamber, the fuel loading capacity of a kind of stamping engine combustion chamber and storage tank integrated structure of the application can be improved, improve the cruising range of hypersonic aircraft, reduce the structure weight ratio;At the same time, integrated design and only simple mechanical, electrical connection outside, for different use requirements of hypersonic aircraft have strong compatibility, high universality advantage.

This invention discloses a heterogeneous multi-rotor layout with a single main rotor and partially tilted multiple slave rotors, relating to the field of unmanned aerial vehicle (UAV) design technology. It includes a large main rotor providing primary lift and n control rotors arranged around it, with some control rotors mounted horizontally and the rest tilted at a fixed angle. During steady-state flight, the anti-torsional torque of the main rotor is statically balanced by the horizontal component torque of the pull force from the tilted slave rotors. Attitude control of the UAV is achieved by differentially adjusting the rotational speeds of the control rotors, including pitch control, roll control, and yaw control. Pitch and roll control are achieved by differentially adjusting the rotational speeds of symmetrically positioned control rotors, while yaw control is achieved by differentially adjusting the rotational speeds between the horizontally mounted and tilted control rotor groups. This invention achieves a fusion of high aerodynamic efficiency and easy operation, effectively improving the UAV's endurance and flight performance.

This utility model relates to the field of truck body technology, specifically to a truck body structure, including a floor plate, columns, and a layered assembly. The columns are mounted on the floor plate. The layered assembly includes a mounting block, a rotating shaft, an extension plate, a support member, and a reinforcing member. The mounting block is fixedly connected to the column and located on the side of the column away from the floor plate. The rotating shaft is rotatably connected to the mounting block and located on the side of the mounting block away from the column. The extension plate is fixedly connected to the rotating shaft and located on the side of the rotating shaft away from the mounting block. The support member is mounted on the column and supports the extension plate. The reinforcing member is mounted on the extension plate and reinforces the extension plate. This design allows for layering inside the cargo box, facilitating the loading of goods that cannot be stacked, increasing loading capacity, and reducing freight costs.

The application belongs to the technical field of inorganic materials and analysis, and particularly relates to a kind of nucleic acid aptamer modified polydopamine coated magnetic composite material MagG@PDA@Au@Aptamer and its preparation and application in selectively separating recombinant histidine tag protein.The material of the application is synthesized by solvothermal method one-step magnetic graphene oxide composite material MagG, then coated with polydopamine to obtain MagG@PDA, then Au is bonded to the surface of MagG@PDA material, and then 5 end modified thiol nucleic acid aptamer is connected to the surface of the material to synthesize nucleic acid aptamer modified polydopamine coated magnetic graphene oxide composite material MagG@PDA@Au@Aptamer.The preparation method of the material of the application is simple, the nucleic acid aptamer solid loading is high, and the recombinant histidine tag protein in bacterial lysate can be separated and enriched efficiently and selectively.