24results about How to "Small radius" patented technology

The utility model discloses an ASA (Acrylonitrile Styrene Acrylate) multilayer film winding device for plastic processing, relates to the technical field of ASA films, and aims to solve the problem that after a winding task is finished, a wound film cannot be quickly replaced, so that the time consumed when a roller sleeve is replaced is longer. Comprising a supporting base, a supporting guide roller and a slicking device, the supporting guide roller and the slicking device are rotationally connected to the supporting base, and a winding mechanism is rotationally connected beside the supporting guide roller; by means of an air bag arranged in an inner cavity of an inner shaft in the winding mechanism, when the winding task is carried out, the air bag is inflated and expanded, so that the whole inner cavity space is filled with the air bag, sliding blocks are pushed outwards, the radius distance among four sets of movable plates is increased, after the winding task is completed, air in the air bag is released through another set of air nozzles, and therefore the winding task is completed. And under the cooperation of the reset springs and the positioning blocks, the sliding blocks and the movable plates are reset, the radius between the movable plates is reduced, the air cylinder retracts, and therefore the wound film can be taken down conveniently.

This invention relates to a boron-doped multi-element polyanionic sodium-ion battery cathode material and its preparation method, comprising the following steps: [The method involves] mixing Na₄Fe₂O₃ with... 3‑X B X (PO4) 2‑Y (SiO4) Y The stoichiometric ratio of P2O7 is determined by adding ferrous source, boric acid, sodium source, phosphorus source, and silicon source to water, followed by the addition of carbon source and mixing thoroughly to obtain a mixed slurry; wherein 0.2≤X≤0.5, 0<Y≤1; the mixed slurry is then ground to obtain a sand-milled slurry; the sand-milled slurry is dried to obtain precursor powder; under a protective atmosphere, the precursor powder is sintered at 450~550℃ to obtain boron-doped multi-element polyanion sodium-ion battery cathode material. The introduction of boron and silicon elements in this invention helps reduce raw material costs, improve the electrochemical performance of the material, especially enhancing the structural stability, rate performance, and cycle life of the cathode material, and also lowers the sintering temperature, meeting the requirements for cost reduction and efficiency improvement.

A drag chain with a corrugated bending radian comprises an upper cover and a lower cover which are buckled with each other, the upper cover and the lower cover are integrated corrugated hoses with wave crests and wave troughs alternately appearing to form corrugated contours, and the corrugated contours have flexibility and are flexibly bent towards the direction of the upper cover. The corrugated contours of the upper cover and the lower cover comprise side parts located on the two sides in the width direction and middle sections located on the side parts gradually, and the two ends of each middle section are bent gradually from the connecting positions of the side parts to the direction of the center line, so that the middle sections have radians protruding towards the direction of one side. According to the technical scheme, the protruding radians are arranged on the wave crests on the corrugated outline, so that when the drag chain is flexibly bent in the movement process, a space with a larger bending radian can be formed between every two connected wave crests, the radius of flexible bending can be reduced, and the flexibility of the drag chain is improved. Therefore, the bearing capacity and the tensile property of the drag chain can be improved.

The invention discloses a green liquid salt and a production process thereof, and relates to the technical field of liquid salts.The production process comprises the steps that a metal organic framework is taken and added into a Tris-HCl buffer solution, uniform mixing is conducted, dopamine hydrochloride is added, stirring, centrifuging, washing and drying are conducted, and the metal organic framework of a core-shell structure is obtained; the preparation method comprises the following steps: adding sulfonated polysulfone, a core-shell structure metal organic framework and polyvinylpyrrolidone into N-methyl pyrrolidone, stirring until the materials are completely dissolved, and carrying out ultrasonic treatment to obtain a membrane casting solution; taking the membrane casting solution, pouring on a glass plate, and performing blade coating, water bath, phase inversion and soaking to obtain a nanofiltration membrane; taking brine, adding modified charcoal, adsorbing, and performing ultrafiltration through an ultrafiltration membrane to obtain ultrafiltration filtrate; and carrying out nanofiltration on the ultrafiltration filtrate through a nanofiltration membrane to obtain liquid salt. Sulfonic acid groups introduced into the nanofiltration membrane are negatively charged, and the interception rate of the nanofiltration membrane on sulfate ions, calcium ions and magnesium ions is improved through electrostatic interaction and size screening.

The utility model relates to the field of pull-out baskets, in particular to a transmission mechanism for a double-layer linkage lifting pull-out basket of a wall cupboard, which is characterized by comprising a mounting plate, and a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod are hinged on the mounting plate; the first connecting rod is parallel to the second connecting rod; the third connecting rod is parallel to the fourth connecting rod; a first half gear is fixed to the end, close to the mounting plate, of the third connecting rod, the rotating center line of the first half gear coincides with the hinge point of the third connecting rod and the mounting plate, and three intermediate gears are rotationally connected to the mounting plate through rotating shafts. According to the transmission mechanism for the double-layer linkage lifting pull basket of the wall cupboard, the design structure is compact, the two hanging baskets are connected through a gear connecting rod structure, the structural connection is simple and firm, the whole machine can stably and smoothly move up and down, and meanwhile the running radius of the whole machine is smaller. The product is simple and reliable in structure, and excellent consumption experience is brought to consumers.

The utility model provides a kind of lattice type wind generator tower, including tower column and foundation, tower column includes inclined section and vertical section, foundation includes anchor cage and foundation steel strand assembly;The axial direction of inclined section and the axial direction of vertical section form included angle, the inside of inclined section is equipped with tower column steel strand;The axial direction of anchor cage is parallel with the axial direction of vertical section, and the both ends of vertical section are connected with inclined section and anchor cage respectively;Foundation steel strand assembly includes foundation steel strand and the first fixed part and second fixed part connected in the both ends of foundation steel strand;The extension direction of foundation steel strand is parallel with tower column steel strand, and tower column steel strand is connected with the first fixed part, and anchor cage is connected with the second fixed part.The utility model designs the lower end of tower column into vertical section, so that anchor cage can also be installed vertically, reduce the radius of the pit for pre-buried anchor cage, reduce cost.Foundation steel strand assembly does not change the extension direction of tower column steel strand, guarantees the tension of tower column steel strand.

The invention discloses an unmanned aerial vehicle layered exploration method based on gravity mechanism viewpoint generation. According to the method, a layering mode is used, and different gravity mechanisms are provided for a fine scene and a wide scene: in the wide scene, the unmanned aerial vehicle uses an interactive lateral gravity mechanism to update a viewpoint, so that the viewpoint is closer to a vehicle body of the unmanned aerial vehicle, and unnecessary long-distance maneuver caused by the fact that the viewpoint is far away from the unmanned aerial vehicle is reduced; in a fine scene, a narrow-channel gravity mechanism is used for sampling and generating a viewpoint, so that the generating radius of the viewpoint is smaller, the unmanned aerial vehicle has a longer flight path plan, low-efficiency maneuvering of advancing-retreating is reduced, and finally the unmanned aerial vehicle completes an exploration task in a high-precision and high-efficiency mode.

The application provides a kind of pneumatic gas butterfly valve tightness test system, including gas generating device, import side pneumatic butterfly valve, gas heating device, export side pneumatic butterfly valve and waste gas treatment device;The gas generating device is connected by first pneumatic tee valve and main gas pipeline, and the waste gas treatment device is connected by second pneumatic tee valve and main gas pipeline;It also includes temperature sensor and first gas pressure sensor arranged at the gas outlet side of gas heating device, second gas pressure sensor installed at the air outlet of export side pneumatic butterfly valve and first smoke sensor installed on export side pneumatic butterfly valve.The beneficial effect: the test system generates gas by gas generating device, secondary heating and pressure regulating method to meet the strict test requirements.Test gas can be recycled multiple times by gas heating device and cooling device for multiple variable tests, reducing test cost and improving gas utilization rate.

The utility model relates to agricultural machinery technical field, especially a kind of agricultural three-axis mechanical chassis steering auxiliary device, including front frame and rear frame, the front frame front end can be connected with steering wheel axle, rear axle frame is provided on the rear frame, and the rear axle frame can be connected with two rear wheel axle. The first V-shaped bogie is fixed to the end of the front frame towards the rear frame, and the second V-shaped bogie is fixed to the end of the rear frame towards the front frame. The tip of the first V-shaped bogie and the second V-shaped bogie is crossed hinged. Adjusting mechanism for adjusting the angle between the front frame and the rear frame is provided between the first V-shaped bogie and the second V-shaped bogie. The existing steering wheel axle is steered under the control of steering wheel, completes first level steering, adjusting mechanism adjusts the angle between the first V-shaped bogie and the second V-shaped bogie, completes second level steering, reduces the radius of agricultural machinery turning.

The application provides a kind of pneumatic gas butterfly valve radial seal test system and test method, including gas generating device, switch valve, gas heating device, first test butterfly valve and waste gas treatment device;The first test butterfly valve is connected with main gas pipeline, and the opening and closing or opening size of main gas pipeline is controlled by the butterfly plate rotatable along the valve shaft, the butterfly plate is three eccentric structure, further including the flange fixedly connected with valve body by being buckled on the outside of butterfly plate, and the gap between the flange and butterfly plate is provided with valve seat.Affirmative effect: the test system generates gas by gas generating device, secondary heating and pressure regulating method to meet the strict test requirements.Test gas can be recycled multiple times by gas heating device and cooling device for multiple variable tests, reducing test cost and improving gas utilization rate.

The invention discloses slurry dipping equipment for coating the exterior of a wax piece with slurry, and relates to the field of wax piece slurry coating, the slurry dipping equipment comprises a base, the top of the base is fixedly connected with a rotating disc, the top of the rotating disc is fixedly connected with an equipment main box, and the top of the equipment main box is fixedly connected with a driving device; a hydraulic press is fixedly connected to the outer surface of the driving device, a positioning unit is arranged at the output end of the hydraulic press, a placing unit is fixedly connected to the bottom of the positioning unit, slurry needs to be poured into the slurry barrel unit, a wax piece is preliminarily fixed in the placing unit, and then the driving device enables the hydraulic press to start to work; and the positioning unit can control the placing unit to enter the slurry in the containing barrel and drive the whole placing unit to rotate, so that the slurry wrapping effect is improved.

This invention discloses a mica nanosheet and its preparation method, belonging to the field of two-dimensional nanofiller technology. The preparation method disclosed in this invention involves heat-treating bulk mica, followed by purification in an aqueous nitric acid solution to obtain pretreated mica powder; dispersing the pretreated mica powder in a solvent to obtain a mixed slurry; adding an oxidant to the mixed slurry and stirring the mixture, then adding a small-molecule lithium salt to further react, obtaining a pretreated slurry; adding grinding beads to the pretreated slurry for sand milling to achieve exfoliation; subsequently releasing the exfoliated slurry and performing post-processing to obtain mica nanosheets. This method solves the technical problem of simultaneously achieving efficient, green, and controllable exfoliation, and possesses scalability potential, which is difficult to achieve with existing methods.

The invention discloses a technology for enhancing the luminous intensity of a Gd2O2S: Tb < 3 + > fluorescent material by doping Al < 3 + > / Sc < 3 + >. According to the technology, the Gd2O2S: Tb < 3 + > fluorescent material is taken as a basis, Al < 3 + > / Sc < 3 + > ions are introduced, the position of Gd < 3 + > is replaced by Al < 3 + > / Sc < 3 + >, the symmetry of a crystal field environment around Tb < 3 + > is changed, the photoluminescence intensity of the fluorescent material is enhanced, and the cathode ray luminous intensity of the fluorescent material is also improved.

This invention provides a lightweight double-track arc-shaped connecting section and a car structure, including a circular track and an arc-shaped entry track connected to the circular track. The arc-shaped entry track and the circular track support a corresponding car. The inner ring of the circular track is lower in height than the outer ring. An inner support ring with an annular structure is provided on the inner side of the circular track. The inner support ring includes a profile with a rectangular cross-section and a recessed limiting groove on one side. The car includes a body, and a hydraulic cylinder is fixedly connected inside the body. A telescopic rod is fixedly connected to the output end of the hydraulic cylinder, and a support wheel is provided at the other end of the telescopic rod, with the support wheel rollingly engaged in the limiting groove. This invention improves the flexibility of the car's movement on the track.

The utility model relates to an electric power engineering cable traction device, which comprises a traction wheel frame and a plurality of winding shafts, the plurality of winding shafts form a winding roller with an adjustable radius by taking the axis of the traction wheel frame as the center, and driving assemblies for driving the winding shafts to synchronously move along the radial direction of the traction wheel frame are symmetrically mounted on two sides of the traction wheel frame. Specifically, by driving the winding shafts to move in the radial direction of the traction wheel carrier, a worker can conveniently control the radius of the winding roller formed by the multiple winding shafts with the axis of the traction wheel carrier as the center according to the actual length of the cable, when the actual length of the cable is large, the radius of the winding roller can be enlarged, and the situation that the number of wound coils is too large, and the cable is damaged is avoided. When the actual length of the cable is short, the radius of the winding roller can be reduced, and the number of wound coils is prevented from being too small.

The invention provides a multifunctional hinged chassis and a tractor, the multifunctional hinged chassis comprises a front frame, a rear frame, a hinged shaft and a telescopic driving mechanism, the front frame and the rear frame are hinged through the hinged shaft, and the hinged shaft is arranged in the height direction; the rear frame comprises a fixed frame and a rotating frame, the fixed frame is hinged to the front frame through a hinge shaft, and the rotating frame is rotationally connected to the fixed frame in the length direction of the rotating frame; the first end of the telescopic driving mechanism is hinged to the front frame, and the second end of the telescopic driving mechanism is hinged to the fixed frame. The telescopic driving mechanism stretches out or retracts back to drive the front frame and the rear frame to generate relative angle deflection, at the moment, due to the fact that the front frame and the rear frame both generate relative position deflection, the turning radius is reduced in the steering process compared with a traditional front wheel steering type chassis, the turning radius of the chassis in the turning process is smaller, and the steering efficiency of the chassis is improved. And turning and U-turn can be realized in a smaller area range.

This application relates to a cam component, a shock absorber, and a vehicle, specifically in the field of automotive technology. The cam component includes a cam, an adjusting member, and a slider. The adjusting member is located at one axial end of the cam and is connected to the cam. The slider is slidably connected to the cam along a first direction. The slider is configured to be rotatably connected to the output shaft of a motor. The adjusting member is configured to move back and forth along the first direction under the action of a force, thereby driving the cam to reciprocate relative to the slider along the first direction. The first direction is the direction of the cam's maximum radius. Through the above technical solution, when the cam is not performing work, the distance between the drive profile corresponding to the cam's Rmax and the rotation center of the slider can be reduced, thereby reducing the radius of the required rotational space for the cam. This allows for a reduction in the size of the shock absorber using the cam.

A receiving and transmitting combined transducer based on a relaxor ferroelectric single crystal PMNT belongs to the technical field of underwater acoustic transducers, and comprises a prestress layer, a watertight layer, a cable, a splicing ring and two cover plates, the splicing ring is formed by connecting a plurality of splicing units; each splicing unit comprises two PMNT single crystal trapezoidal strips and two aluminum alloy trapezoidal strips; each splicing unit comprises a positive electrode and a negative electrode; leads led out from the anodes of all the splicing units are connected in parallel to lead out a total lead A, and leads led out from the cathodes are connected in parallel to lead out a total lead B; the prestress layer wraps the outer circumferential surface of the splicing ring; the two cover plates are installed at the two ends of the splicing ring respectively, and the two cover plates and the splicing ring are matched to form an air backing. The watertight layer wraps the peripheries of the two cover plates and the splicing ring; the cable is of a two-core structure and is electrically connected with the main wire A and the main wire B respectively. According to the utility model, the sound source level and the sensitivity of the transducer can be improved, and the working distance of the transducer can be effectively increased.

The liftable sleeping berth bed comprises a bed board assembly, the two ends of the bed board are connected with a wall through hinge assemblies, each hinge assembly comprises a first connecting rod and a second connecting rod, and the second connecting rods are located between the first connecting rods and the bed board assembly; the first connecting rod, the second connecting rod and a hinge shaft of the bed board assembly, and the first connecting rod, the second connecting rod and a hinge shaft of the wall define a parallelogram; with the hinge point of the connecting rod and the wall as a reference, the bed board assembly can ascend above the hinge point and descend below the hinge point, the lifting stroke is doubled, the length of the connecting rod is shortened, and the radius required by ascending, descending and rotating of the bed board assembly is reduced.

The application discloses a kind of unmanned plane layered exploration methods based on gravity mechanism view point generation;The method uses layered mode, and different gravity mechanisms are proposed for fine scene and broad scene:When broad scene, unmanned plane uses interactive lateral gravity mechanism to update view point, so that view point produces distance unmanned plane itself body closer, reduce unnecessary long distance maneuver because view point distance unmanned plane is far;When fine scene, narrow lane gravity mechanism is used to sample and generate view point, so that view point produces smaller radius, and then make unmanned plane have longer track planning, reduce inefficient maneuver of advance-back, finally make unmanned plane complete exploration task in a kind of high precision, high efficiency.

The invention belongs to the technical field of seawater electrolysis hydrogen production, and particularly relates to a method for preparing a FeCoNi-based electrode material based on chlorine-containing alkaline oxidation liquid, the prepared electrode material and application. The preparation method comprises the following steps: carrying out vacuum melting to obtain an alloy base material containing catalytic elements of iron, cobalt and nickel, carrying out a hydrothermal reaction on the base material and a sodium hydroxide-hydrogen peroxide mixed solution containing sodium chloride, and finally obtaining the in-situ growth type electrode. According to the electrode prepared after sodium chloride is added into the hydrothermal medium, a nanosheet FeCoNi hydroxide composite catalytic layer with more uniform microstructure is generated on the surface of the electrode, the electrochemical active area is larger, the catalytic active element distribution is more uniform, and the catalytic active sites are more, so that the OER and HER catalytic activity of the FeCoNi-based catalytic electrode in a seawater medium is improved, and the service life of the FeCoNi-based catalytic electrode is prolonged. And meanwhile, corrosion-resistant nickel elements on the surface of the electrode are uniformly distributed, so that microbattery corrosion in a seawater medium environment is avoided, and the seawater corrosion resistance of the catalytic electrode in the seawater electrolysis service process is remarkably improved.

The application relates to a three-dimensional neuron image segmentation method based on a segmentation and super-resolution joint model, which comprises the following steps: step S1, synthesizing training data by using optimized neuron structure and cell body segmentation results; step S2, training the constructed segmentation and super-resolution joint model by using the training data synthesized in step S1; and step S3, inputting a neuron image for testing into the segmentation and super-resolution joint model trained in step S2 to obtain an image segmentation result. Compared with the prior art, the application has the advantages that the image resolution is improved while the continuous protrusion signal in the segmentation is ensured, and the problem that a neuron tracking algorithm has poor tracking effect when facing optical microscopic images with obvious image noise, uneven protrusion signal distribution and interlaced neurite protrusions is solved.

The application discloses a drilling sample manufacturing mold, which is characterized by rotating a pivot part to drive an arc-shaped inner plate to move along a radial direction by an inner plate driving mechanism, thereby adjusting the distance between an inner tube and an outer tube, that is, adjusting the radius between the axis of a center tube and the inner tube, so as to adjust the aperture of the drilling. The drilling sample manufacturing mold disclosed by the application can manufacture drilling samples with different apertures by using the same mold, guarantees the diversity of the manufactured samples, saves materials, and improves the test efficiency.

The utility model relates to the field of pull baskets, in particular to a double-layer linkage lifting basket of a wall cupboard, which comprises a cupboard body, a first basket and a second basket, mechanical boxes are symmetrically fixed at the top end of the cupboard body, and the interiors of the mechanical boxes are rotatably connected with rotating blocks through bearings; one end of the rotating block penetrates through the mechanical box to be fixedly connected with a first connecting rod, the side wall of the mechanical box is rotationally connected with a second connecting rod through a bearing, and the end of the first connecting rod and the end of the second connecting rod are hinged to the side wall of the first basket. And meanwhile, the anti-false-triggering function is achieved, and the problems that the pull basket does not descend or the descending speed is too high, and the pull basket is strenuous to push back after descending and the like due to the fact that gear adjustment errors are not consistent with actual load bearing or gear adjustment is triggered by mistake are solved.