183results about How to "Guaranteed compactness" patented technology

The invention discloses a rapid assembly welding construction method for boiler steam blowpipes. The method comprises the steps that small-pipe-diameter and large-pipe-diameter welding auxiliary structures are manufactured, pipelines are hoisted to the installation position for butt joint, the corresponding welding auxiliary structures are selected according to the pipe diameters so that pipe openings of the pipelines can be aligned and preliminarily welded and positioned, and final butt joint welding is completed after the auxiliary structures are dismantled. An auxiliary mounting and welding structure of the automatic screwing device is further manufactured, and the device enables a screwing driving mechanism to be in butt joint with a connecting bolt, a nut or an adjusting bolt by adjusting the positions of all parts and drives the screwing driving mechanism to rotate. According to the assembly welding device, the technical effects of quickly and accurately completing assembly welding of the boiler steam blowpipes and improving the construction efficiency and quality are achieved.

The utility model discloses a low and small-sized steering wheel structure which comprises a bearing plate, a containing groove is formed in the upper surface of the bearing plate, and a driving wheel capable of intruding into the containing groove and a walking motor controlling the driving wheel are arranged on the lower surface of the bearing plate. The driving wheel part is arranged in the containing groove of the bearing plate, meanwhile, the steering motor is installed on the bottom face of the bearing plate, so that the whole steering wheel structure is more compact in the height direction, the overall height of the steering wheel is reduced, and the steering wheel is suitable for occasions with strict limitation on the height, such as a submerged AGV; moreover, even if large bearing capacity needs to be provided, the structure can guarantee the lower height of the AGV steering wheel driving device, and the characteristics of low height and compactness of the AGV steering wheel driving device are not affected.

The invention relates to the technical field of enameled round wire processing equipment, and discloses an enameled round wire anti-pinch winding reel guiding and limiting structure which comprises a workbench, the top of the workbench is fixedly connected with a deviation rectifying mechanism, and the deviation rectifying mechanism is used for conducting real-time guiding and deviation rectifying on an enameled round wire in the winding process to prevent uneven winding or wire clamping. The top of the workbench is fixedly connected with a supporting frame, the top of the supporting frame is fixedly connected with a limiting mechanism, the limiting mechanism is used for conducting internal tight supporting and fixing and rotary driving on a winding reel and adapts to installation of winding reels of different specifications, and the top of the workbench is fixedly connected with a cutting mechanism. An electric push rod drives a connecting rod to drive a first sliding block to slide in a first fixing frame, then a deviation rectifying roller is driven to do horizontal reciprocating motion, the problem that in the traditional wire winding process, wire accumulation or uneven gaps are likely to occur is solved, the tightness and uniformity of wire arrangement on a winding reel are guaranteed, and the production efficiency is improved. And the overall production quality of the product is improved.

This utility model discloses a heat-dissipating electric tricycle brake disc, including a brake drum and a circular brake disc disposed on the circular outer wall of the left end of the brake drum. The circular brake disc and the brake drum are fixedly connected by welding. The brake drum is circular in shape and has an opening at the left end. The circular brake disc is flush with the outer wall of the left end of the brake drum. Multiple heat dissipation holes are equidistantly arranged inside the circular brake disc near the edge. By adding multiple airflow-type heat dissipation devices equidistantly on the outer wall of the right end of the brake drum, when the brake drum rotates clockwise, the air intake horn collects air and sends it into the airflow compression hood. The airflow is blown onto the outer wall of the brake drum and the circular brake disc through the exhaust hole of the compression hood or the flat exhaust hood and the exhaust port of the exhaust hood, which quickly dissipates heat and avoids high temperature affecting braking performance. The airflow compression hood has an adaptable structure and does not take up too much space. The flat exhaust hood, together with the exhaust port, increases the heat dissipation coverage area and makes the heat dissipation more even and sufficient.

The invention discloses a building road and bridge pouring construction process and device. The building road and bridge pouring construction device comprises a plurality of road and bridge pouring formwork bodies which are transversely spliced together. Each splicing structure is arranged between every two adjacent road and bridge pouring formwork bodies and comprises a splicing block fixed to the surface of one side of the corresponding road and bridge pouring formwork body, a splicing groove formed in the surface of the other side of the corresponding road and bridge pouring formwork body and corresponding to the splicing block, and an outer side type locking structure arranged between the splicing block and the splicing groove; each sealing structure is arranged between every two adjacent road and bridge pouring template main bodies; according to the building road and bridge pouring construction technology and device, through the innovative splicing structure and sealing design, it is avoided that penetrating type screw holes are formed in the splicing positions of the formworks, the problems that concrete leaks from the screw holes and slurry leaks in the pouring process are fundamentally solved, the defects of honeycombs, pitted surfaces and the like on the surface of the concrete are effectively prevented, and the construction quality is improved. The appearance quality of the road and bridge structure is remarkably improved, the road and bridge structure is smoother and more attractive, and the sealing performance of the formwork is enhanced.

The invention relates to the technical field of bus ducts, and particularly provides a sealing plate assembly of a heat dissipation type bus duct connection area, which comprises a top plate, a bottom plate and two side plates arranged oppositely, the two side plates are arranged between the top plate and the bottom plate, and the two side plates, the top plate and the bottom plate enclose to form a connection area outer cover space. The top plate comprises lap joint sections located at the two ends of the top plate and a middle section located between the two lap joint sections, and the two lap joint sections are in lap joint with the outer sides of the tops of the adjacent bus duct sections respectively. A heat transfer path is formed between the closing plate assembly on the outer side of the connection area and the adjacent bus duct sections, heat generated in the operation process of the connection area can be diffused to the adjacent bus duct sections, the heat diffusion range is enlarged, local gathering of heat near the connection area is reduced, and the service life of the bus duct is prolonged. And the heat dissipation capability of the connection area is improved, and meanwhile, the sealing protection requirement of the connection area is considered.

The utility model relates to the technical field of padding regeneration equipment, in particular to a cattle bed padding regeneration device capable of rotating at differential speed, which comprises a fermentation rotary drum, an air drying rotary drum and a differential speed connecting assembly, and the differential speed connecting assembly comprises a flanging outer flange, a smooth surface flange, a first wear-resistant mounting plate and a second wear-resistant mounting plate. The flanged outer flange is arranged on the side, close to the fermentation rotary drum, of the air drying rotary drum and comprises a first flanged edge, a second flanged edge and a third flanged edge, the first wear-resistant mounting plate makes contact with the smooth flange, the second wear-resistant mounting plate is fixedly mounted on the inner side wall of the fermentation rotary drum and makes contact with the inner side wall of the air drying rotary drum, and the third wear-resistant mounting plate is fixedly mounted on the outer side wall of the air drying rotary drum. During operation, when the fermentation rotary drum and the air drying rotary drum rotate asynchronously, the first wear-resistant mounting plate is in sliding friction with the smooth surface flange, the second wear-resistant mounting plate is in sliding friction with the inner side wall of the fermentation rotary drum, and the scheme can meet operation of the fermentation rotary drum and the air drying rotary drum at different rotating speeds.

This invention discloses a method for infiltrating ultra-low chromium copper into copper-tungsten contact materials using a vacuum sintering process, comprising the following steps: S1, pressing tungsten powder into a blank; S2, degumming the tungsten blank; S3, preparing the copper matrix; S4, unloading the blank; S5, sintering and infiltrating; and S6, solution treatment and aging. In the copper-tungsten contact material infiltrated with ultra-low chromium copper using the vacuum sintering process of this invention, the Cr content is approximately 0.025 wt.%. This ultra-low Cr content provides excellent strengthening of the contact material, resulting in a hardness ≥78 HB and a conductivity ≥55 Ms / m, thus compensating for the insufficient conductivity of chromium copper while meeting the hardness requirements of copper.

This invention discloses a multi-stage pressure- and temperature-controlled molding method for ablation-resistant missile engine casing, within the field of missile engine combustion chamber technology. The method includes the following steps: S1: Tooling and mandrel pretreatment: Cleaning and defect inspection of the mandrel for mold placement, and treating the mandrel with a release agent; S2: Metal liner surface treatment: Grinding and cleaning the outer surface of the metal liner; S3: Applying epoxy film: Applying an epoxy film to the treated outer surface of the metal liner. This invention, through meticulous pretreatment of the tooling and mandrel, grinding and cleaning of the metal liner, and precise application of the epoxy film, combined with a multi-layer intermediate compaction process during composite material winding, effectively improves the interlayer bonding strength between the metal liner and the composite material winding layer, reduces the porosity of the winding layer, and ensures the density and stability of the casing structure.

The application relates to a middle air inlet type household convenient drying machine, air inlets are arranged in the middle part of the machine body, and other non-core pneumatic components such as control panels are arranged outside the fluid channel, the path from air suction to air exhaust forms a more short and straight, smooth and efficient airflow air duct, airflow loss is maximally reduced, air speed and air volume are obviously improved, the pneumatic performance and drying efficiency of the drying machine are improved, and working time is shortened. Meanwhile, due to the smooth air duct design, airflow can pass in a more smooth laminar flow state, noise generated due to impact and turbulence is reduced, a more quiet use experience is provided for users, due to the reduced air duct resistance, the running load of the motor is smaller, energy is saved, the service life of the drying agent is prolonged, meanwhile, the compact structure of the household drying machine is maintained, and a more comfortable use experience is brought to users.

This invention relates to the field of robot transmission technology, specifically an industrial robot reducer, comprising a first frame assembly and a second frame assembly, both of which can be mounted on the output end of a drive motor at their bottom. The first frame assembly has a first output shaft at its top and an internal unidirectional reduction assembly for achieving unidirectional reduction output. The second frame assembly has a second output shaft laterally located on one side of its top and an internal reversing reduction assembly for achieving vertical reversing reduction output. The unidirectional reduction assembly includes an input gear, a multi-stage unidirectional double gear, and a first output gear; the reversing reduction assembly includes a worm gear, a multi-stage reversing double gear, and a second output gear. The first frame assembly uses a base plate, middle plate, top plate, and long bolt assembly structure, and the first output shaft is prevented from detaching by a limiting plate. This invention can flexibly achieve unidirectional or vertical reduction output, has a compact structure, smooth transmission, high positioning accuracy, and strong impact resistance.

The utility model discloses a honeycomb activated carbon placing frame, which relates to the technical field of activated carbon storage and comprises a group of first frame bodies and two groups of second frame bodies movably arranged in front of and behind the first frame bodies respectively, the first frame bodies and the second frame bodies are in sliding connection through traction rods, and the first frame bodies and the second frame bodies can be assembled together. The first frame body, the second frame body and the third frame body are supported by the walking wheels, workers can move the first frame body, the second frame body and the third frame body integrally and conveniently to move to the position where honeycomb activated carbon is carried, and when the honeycomb activated carbon is stacked, the second frame body is pulled open towards the two sides so that the honeycomb activated carbon can be stacked conveniently and assembled again after stacking is finished. The structure that the first frame body and the second frame body are connected in a sliding mode enables the distance between the frame bodies to be adjustable, the device flexibility is higher, it is guaranteed that honeycomb activated carbon can be stacked smoothly, meanwhile, the equipment compactness is guaranteed, the large-scale storage requirement is met, and the space needed by storage of the first frame body and the second frame body is further reduced.

The application discloses a kind of visual self-compacting grouting design method and system mould of fabricated structure, belong to the technical field of fabricated structure construction.For the defects such as traditional grouting of fabricated structure invisible, monitoring difficult, easy to cavity segregation and grout waste, the application develops a kind of whole process visible, passive self-compacting grouting method and system mould.The mould is composed of transparent template main body and self-adjusting closing mechanism, and the transparent template includes fixed template and automatic grouting plate, which are connected by tooth groove to form a sealed grouting cavity.The closing mechanism is linked by spring pressure plate, spring group, steel wire and positioning pulley group, and is automatically and accurately closed by the driving of grout pressure and self-weight based on grout pressure and self-weight.The application establishes the quantitative relationship among spring compression amount, grouting pressure and closing angle based on dynamic response analysis, and proposes a new grouting control method, and the mould is designed in a modular way, which can improve construction quality, ensure structure safety and reduce construction cost.

This utility model relates to the field of pipeline inspection technology, specifically to a drone inspection device for oil and gas pipelines. It includes an inspection instrument with an infrared camera fixedly mounted on one side. A removable battery is detachably mounted on the adjacent side via a clamping structure, and the removable battery has a charging slot for independent charging and maintenance. A sliding frame is fixedly mounted at the bottom of the inspection instrument, with hooks slidably embedded within it, allowing the device to be hung on the operator's clothing or mounted as a whole on a drone bracket. A display screen is embedded on the side of the inspection instrument opposite the removable battery. A microcontroller fixedly mounted inside connects to the removable battery via preset contacts to obtain power, and simultaneously connects to the infrared camera via flexible wires to transmit thermal signals and to the display screen to output detection results. This utility model solves the problems of shortened battery life due to reliance on drone power supply and the inconvenience of battery removal affecting continuous operation, achieving seamless switching between autonomous power supply and manual / drone dual-mode operation.

This utility model relates to the field of mechanical tooling technology, and discloses a flipping device and a conveying equipment. The flipping device includes a lifting mechanism and a flipping mechanism. The lifting mechanism is movably arranged in the vertical direction; the flipping mechanism is rotatably connected to the lifting mechanism, and the flipping mechanism includes a rotating shaft, a flipping component, and a first drive component. The first end of the rotating shaft is rotatably connected to the lifting mechanism. The flipping component includes a flipping frame and an arc-shaped rack; the flipping frame is connected to the second end of the rotating shaft, and the arc-shaped rack is connected to the flipping frame, with the center of the arc of the rack located on the rotating shaft; the first drive component is driven and connected to the arc-shaped rack, thereby driving the flipping frame to flip. With this utility model, the flipping device and conveying equipment allow for more effort to be saved when the first drive component drives the flipping frame to rotate, thus reducing energy consumption.

This utility model discloses an insect-proof structure for a wall-side ventilation opening in a roof insulation layer. It includes a ventilation opening body with an insertion part at the rear end for insertion into an exhaust duct. The insertion part and the exhaust duct are shaped to match. An air inlet is located at the front end of the ventilation opening body. An insect-proof net assembly is detachably installed near the air inlet in the front inner cavity of the ventilation opening body. The insect-proof net assembly includes a mesh frame and an insect-proof screen mounted on the frame. The assembly is vertically placed within the inner cavity of the ventilation opening body. External airflow enters through the air inlet, passes through the mesh of the insect-proof screen, and then enters the exhaust duct within the inner cavity of the ventilation opening body. This utility model's ventilation opening body and the existing exhaust pipe form an inlet-outlet flow pattern, improving gas exchange efficiency. The efficient ventilation and exhaust accelerate the drying process, saving material drying time during construction or roof repair, and improving overall construction efficiency. The insect-proof net assembly provides excellent insect protection, preventing damage to the insulation layer.

The utility model relates to the field of battery cells, in particular to a polymer cell structure with pins easy to connect, which comprises a cell shell, a top shell is mounted at the upper end of the cell shell, and one end of the top shell is provided with an end notch; the connecting mechanism is installed on the inner wall of the end notch, and the surface of the connecting mechanism extends to the position above the top shell; wherein the connecting mechanism comprises a connecting assembly installed on the inner wall of the end notch, a guide assembly is arranged on the inner side of the connecting assembly, and the guide assembly is connected to the inner wall of the connecting assembly in a sliding mode; the two elastic pieces are arranged in the side grooves, the effect of quick connection is achieved in the connecting process, meanwhile, the two elastic pieces are distributed in a staggered mode through the side grooves, the connecting pins are inserted between the two adjacent elastic pieces, the two elastic pieces can be tightly attached to the surfaces of the connecting pins under the action of elastic potential energy, connection tightness is kept, and the using effect is guaranteed after welding.

The utility model provides an extruding device for PVC water pipe processing relates to water pipe extrusion technical field, including processing platform, the first installation link is fixedly installed on the processing platform upper surface, the first installation link upper end is fixedly installed with screw rod injection molding machine, the second installation link is fixedly installed on the processing platform upper surface, the die head is installed to the second installation link top, the screw rod injection molding machine output and die head are connected, the clamping and fitting assembly is provided on the processing platform upper surface, the utility model discloses through two second hydraulic cylinder output end telescoping, at this moment can drive two arc clamps to move to the side of mutual approach, make arc clamps clamp pipeline in the middle of traction pipe, and through servo motor output end drive gear rotates, make gear drive several gear teeth, make the swivel ring rotate, at this moment can drive several arc clamps rotate, make arc clamps clamp pipeline one week and fit work.

The utility model provides a novel box pasting machine anti-sticking material collecting device which comprises a box pasting assembly, a conveying assembly, a material stacking assembly, a detection assembly and a material collecting assembly are sequentially arranged on one side of the box pasting assembly, the detection assembly is composed of a detection rack and a side plate, and the side plate is fixedly installed on the inner wall of the top of the detection rack; a paperboard conveying mechanism is arranged in the detection rack, a discharging mechanism is installed on the inner wall of a side plate, the material collecting assembly is composed of a box body, a frame plate of a square structure is fixedly installed in the box body, the top face of the frame plate is connected with a tipping bucket in an attached mode, and the tipping bucket is rotationally connected with one side of the box body. Carton conveying after box pasting is achieved through the conveying assembly, carton collection is conducted through the stacking assembly, carton storage is achieved through the collection assembly, products are dried in the collection assembly, adhesion between boxes is prevented, the tipping bucket is arranged and can be used for discharging the dried cartons, rapid discharging is achieved, and the machining efficiency can be improved.

The utility model discloses a water -cooled coal bed gas hydraulic fracturing system, this system passes through integrated high -efficient water -cooling unit, effectively solved traditional coal bed gas hydraulic fracturing system in air -cooled heat dissipation efficiency low, energy consumption is high, loud and frequent maintenance technical problem. System adopts plate heat exchanger and circulating cooling water system, has realized the accurate control of hydraulic oil temperature, has improved system energy efficiency and operating stability significantly, especially suitable for coal mine underground limited space and high dust environment. The system has heat dissipation efficiency high, compact structure, energy consumption is low and maintenance cycle long etc. advantage, provides strong support for the efficient exploitation of coal bed gas.

The invention discloses a built-in concrete distributing device and method for a tubular pile steel mold. The device comprises a material receiving assembly, a material distributing assembly, a stirring assembly and an additive spraying assembly. And a loading vehicle of the material receiving assembly bears the lower template with the built-in reinforcement cage to move. A discharging pipe of the material distribution assembly can axially stretch into the reinforcement cage for center material distribution, and concrete is prevented from being attached to stirrups. The stirring assembly synchronously vibrates and stirs during material distribution through an adjustable stirring rod, and it is ensured that concrete is uniform and compact. The admixture can be added into the admixture spraying assembly according to needs. The using method comprises the steps that the reinforcement cage is positioned, and the discharging pipe extends into the reinforcement cage; carrying out material distribution, synchronous stirring and additive spraying; and closing the mold after completion. The problems that concrete adheres to ribs, distribution is uneven, and performance regulation and control are inconvenient are solved, and the production efficiency and the forming quality of the pipe pile are improved.

The application discloses a spraying process for improving adhesion of a sprayed coating, comprising: surface treatment of a substrate to form a concave-convex structure with concaves and convexes; spraying of slurry to the substrate surface, with control of the spraying amount to make the filling height of the slurry in the concaves 1 / 3-2 / 3 of the depth of the concaves, and to form a reserved space on the top of the concaves; cleaning before the slurry is dried to remove the slurry on the surface of the convexes, so that the top of the slurry in the concaves is not higher than the top surface of the convexes; horizontal static placement to make the slurry naturally settle and discharge air bubbles, and to form a compact anchoring body; again spraying of the slurry to form a covering layer, with the slurry of the covering layer entering the reserved space and being integrated with the top of the anchoring body into a continuous integrated structure; and solidification to form a coating layer. The process combination of twice spraying and intermediate cleaning and static settlement forms a bubble-free compact anchoring body in the concaves, and then the anchoring body is integrated with the covering layer, so that the bonding strength of the coating layer and the substrate is significantly improved.

The utility model relates to the technical field of steel die net racks, in particular to a steel die net rack supporting structure assembly which comprises two frames and a heat preservation plate, blocking nets are fixedly connected to the side faces of the two frames, the opposite side faces of the two frames are fixedly connected with the two ends of a plurality of connecting rods, and the connecting rods are fixedly connected with the heat preservation plate. According to the steel die net rack supporting structure assembly, the hindrance of outward protruding of a traditional supporting plate on concrete pouring is thoroughly eliminated, concrete can flow and fill smoothly, the concrete pouring efficiency is improved, and the steel die net rack supporting structure assembly is suitable for being used for concrete pouring. The problems of concrete accumulation and cavity formation are effectively avoided, the compactness and integrity of wall pouring are guaranteed, the supporting area of the heat preservation plate can be effectively increased, extrusion force generated by concrete pouring can be evenly dispersed, and the situation that the heat preservation plate is broken and damaged is effectively avoided.

This utility model discloses an electrode sheet, a multi-tab battery cell, and a battery. The electrode sheet includes a current collector, an active material layer, and a tab region permeation structure. The current collector has a coated area and an uncoated area, with the uncoated area located on one side of the coated area. The active material layer is coated on the coated area. The tab region permeation structure is formed on the uncoated area. After the electrode sheet is wound into a battery cell, the tab region permeation structure is arranged around the periphery of the battery cell core. The tab region permeation structure is used to form a radial permeation channel for electrolyte in the battery cell tabs. In this way, the tab region permeation structure can break through the limitation of the dense metal layer formed by the tabs in traditional multi-tab batteries, providing a radial permeation path for the electrolyte, improving the electrolyte permeation and wetting speed and uniformity, effectively reducing electrolyte residue at the bottom of the battery, and avoiding problems such as decreased utilization of active materials caused by insufficient local wetting or uneven electrolyte distribution on the battery electrode sheet.

The utility model relates to the field of engines, in particular to an engine cylinder head cover and an engine. The engine cylinder head cover comprises a cylinder head cover body, an ignition device, an oil injection assembly and a pre-combustion chamber. The pre-combustion chamber comprises a mounting plate and a chamber main body; the cavity body extends into the cylinder head cover body, and an opening is formed in the top of the cavity body. The oil injection assembly comprises an oil injector which enters the cavity body from the opening. The ignition device penetrates through the cylinder head cover body; the chamber main body is provided with a first socket, and a spark plug of the ignition device enters the chamber main body from the first socket; a communicating hole is formed in the bottom end of the chamber main body; the mounting plate is connected with the top of the chamber main body, and the mounting plate is used for being connected with a cylinder cover; a receding opening is formed in the cylinder head cover body and used for containing the mounting plate. Fuel oil can directly enter the pre-combustion chamber to be fully atomized, and the quality and combustion stability of mixed gas are improved. And the optimization of the space layout of the engine cylinder head cover can be realized, and the structural compactness is ensured.

The utility model discloses a kind of heating heat preservation shoes, including shoe body, heating insole is arranged in the shoe body, the side of the shoe body is provided with pocket with power supply, the side of the shoe body is provided with perforation, the output end of the power supply is connected with electric wire, the other end of the electric wire passes through the perforation and extends into the shoe body and is connected with the heating insole;Advantage is convenient for power supply to take and place, while helping to guarantee the service life of electric wire.

The utility model relates to the field of toilet lid equipment, and discloses a toilet lid with an aromatherapy box, which comprises a fixed plate, the lower surface of the fixed plate is fixedly connected with a fixed seat, the inner wall of the fixed seat is hinged with an auxiliary seat, the front surface of the auxiliary seat is fixedly provided with a toilet lid plate, the inner wall of the auxiliary seat is hinged with a bearing frame, and the bearing frame is fixedly connected with the aromatherapy box. A supporting plate is fixedly connected to the lower surface of the bearing frame, an aromatherapy assembly is arranged at the axis of the upper surface of the supporting plate and comprises a mounting frame, and an aromatherapy containing box is detachably connected to the axis of the inner wall of the mounting frame. According to the aromatherapy assembly, the aromatherapy containing box, the supporting frame, the top plate and other parts in the aromatherapy assembly are matched with one another through the connection relation, the aromatherapy assembly is arranged on the toilet lid, aromatherapy smell can be continuously released, air can be effectively refreshed, peculiar smells can be removed, and a more comfortable and agreeable toilet environment is created for a user; and the experience feeling of the user is improved.

The application relates to the technical field of biodegradable toy materials, and discloses a PFM-nanocellulose-hydroxyapatite synergistically reinforced biodegradable material and application, which is prepared from components such as polylactic acid, polybutylene adipate terephthalate, polypropylene carbonate, polybutylene succinate, hydrophobic pore-keeping modified plant fiber micro powder, antibacterial microcapsules, nanocellulose paste and grafting compatibilizer. In the preparation process, quaternary resin is premixed and melted, nanocellulose paste is injected laterally, and a high-vacuum in-situ devolatilization process is combined, so that liquid medium is removed in real time and in-situ dispersion of nanocellulose is realized. According to the scheme, a physical interwoven space reinforcing structure is constructed in the matrix, the toughness and the mechanical modulus of the material are synergistically improved, long-acting bacteriostasis is realized by relying on controlled release of the microcapsules, the problems of reinforcing phase agglomeration and short bacteriostasis time are solved, and the application is suitable for production of high-performance long-acting antibacterial biodegradable toys.

The invention discloses a rotary radar and an unmanned aerial vehicle. The rotation radar comprises a rotation driving member; the antenna assembly is connected with the rotation driving piece, the rotation driving piece is used for driving the antenna assembly to rotate, and the antenna assembly is provided with a first light-transmitting channel and a second light-transmitting channel; the first grating sensor and the second grating sensor are installed on the antenna assembly, the first grating sensor comprises a first light emitting tube and a first light receiving tube, first light emitted by the first light emitting tube irradiates the first light receiving tube through the grating code disc, and the second grating sensor comprises a second light emitting tube and a second light receiving tube; second light emitted by the second light emitting tube irradiates the second light receiving tube through the grating code disc, the first light emitting tube and the first light receiving tube are arranged on the outer sides of the two opposite ends of the first light transmitting channel respectively, and the second light emitting tube and the second light receiving tube are arranged on the outer sides of the two opposite ends of the second light transmitting channel respectively. According to the rotation radar, the reliability of positioning and sensing the rotation angle of the antenna assembly is improved.