12results about How to "Structural balance" patented technology

The invention relates to the technical field of railway line flaw detection, in particular to railway line automatic comprehensive flaw detection equipment which comprises two steel rails and a flaw detection car and further comprises a C-shaped mounting plate, a buffer assembly, a waist detection mechanism and a bottom detection mechanism. A first fixing rod is transversely arranged in the C-shaped mounting plate, fixing sleeves are slidably connected to the two ends of the first fixing rod correspondingly, and balance assemblies are arranged at the ends, away from each other, of the two fixing sleeves correspondingly. The device has the advantages that different detection assemblies are arranged for different detection areas, so that steel rail detection of different parts is more efficient and accurate, it is ensured that different types of defects can be detected, the detection period is shortened, the balance assembly and the buffer assembly cooperate with each other to enable the head detection assembly to keep a dynamic balance state, and the detection efficiency is improved. The probe is effectively protected from vibration damage, and the adaptability of the probe to the change of the steel rail and the detection stability of the probe are improved.

The invention discloses a multi-layer flame-retardant fabric with low-temperature cryogenic protection and flashover prevention functions and a preparation method of the multi-layer flame-retardant fabric. The multi-layer flame-retardant fabric comprises a thermal protection outer layer, a heat buffer layer, a flame-retardant thermal insulation layer and a skin-friendly comfortable layer; the thermal protection outer layer is a three-dimensional warp-knitted spacer fabric subjected to hydrophobic treatment and comprises a thermal protection outer layer surface layer and a thermal protection outer layer inner layer, and spacer yarns are alternately connected back and forth between the thermal protection outer layer surface layer and the thermal protection outer layer inner layer in the single vertical direction to form the three-dimensional warp-knitted spacer fabric; the spacing distance between every two adjacent spacer yarns is 0 to 10 mm; the heat buffer layer is a coating formed on the inner layer of the thermal protection outer layer; the flame-retardant thermal insulation layer is a thermal insulation felt made of a flame-retardant material The skin-friendly comfortable layer is formed by flame-retardant cotton fabric, polyimide fabric or aramid fiber / flame-retardant viscose blended fabric. The combined fabric provided by the invention has the advantages of low-temperature cryogenic protection, flame retardance, high-heat protection performance and high-temperature resistance, and realizes the balance of structure, function and performance.

The invention provides a low-profile dual-polarized magnetoelectric dipole antenna which is realized on the basis of a standard multilayer PCB (Printed Circuit Board) technology, the antenna is realized by stacking antenna array elements on a standard multilayer PCB, and the antenna array elements are of nine-layer structures which are sequentially arranged from top to bottom; the antenna array element is composed of a top metal layer, two cross-polarized electric dipoles, a magnetic dipole, a through hole, a defected ground plane (DGS), an iron core, a prepreg plate layer, a feed unit and a ground plane layer. The antenna is thin in thickness, balanced in structure, light in weight, easy to manufacture and high in yield. High isolation between the elements can generate high beam scanning performance. The method is very suitable for a packaging technology and a standard PCB technology, and is an attractive candidate for millimeter wave application in a fifth generation (5G) mobile system. The designed low-profile dual-polarization magnetoelectric dipole antenna is simulated, and the result shows that the two polarization radiation modes of the infinite array uniformly cover the light beam steering range, and blind spots do not appear in the phased array.

The present application relates to the technical field of computer vision, and relates to a 3D Gaussian sputtering stylization method, system, device and storage medium; wherein the 3D Gaussian sputtering stylization method comprises the following steps: obtaining a style image and a three-dimensional Gaussian scene to be stylized; performing non-negative matrix decomposition on the style image to extract an initial color basis matrix and an initial coefficient matrix of the style image; constructing a color orthogonal decoding model according to the initial color basis matrix and the initial coefficient matrix, and recalculating color parameters of each Gaussian primitive of the three-dimensional Gaussian scene; performing style transfer optimization on the Gaussian primitive, updating trainable parameters until an iteration termination condition is reached; and determining a stylized three-dimensional Gaussian scene according to updated geometric attribute parameters and color attribute parameters. The present application can solve the problems of color incoordination and dirty color during 3D Gaussian sputtering stylization.

The invention discloses a suspension type lifting appliance structure for a crane and a using method of the suspension type lifting appliance structure, and relates to the technical field of cranes, the suspension type lifting appliance structure comprises a hanging unit, the hanging unit comprises hanging rods distributed in an annular array, the bottom sides of the hanging rods are rotatably connected with hanging bases, hanging rings are movably arranged on the hanging bases, and hanging chains are arranged at the bottoms of the hanging rings; lifting hooks are arranged at the two ends of the lifting chain, the lifting chain is hung on the lifting ring through the lifting hook at one end, the ends, close to each other, of the lifting rods are jointly and fixedly connected with a lifting disc, a hanging ring is arranged at the top of the lifting disc, adjusting units are arranged on the lifting rods, and the adjusting units are used for adjusting the horizontal position of the lifting chain. The lifting hook is provided with a limiting unit, the bottom of the hanging scaffold is provided with a separating unit, the lifting appliance can effectively prevent collision among lifted heavy objects, the overall stress of the lifting appliance is uniform when the heavy objects with different weights are lifted at the same time, in addition, when the heavy objects fall off, intervention and stopping are conducted in time, and the risk of goods falling off is reduced.

The invention discloses a breathable flyknit vamp and a production method, and belongs to the technical field of flat knitting fabrics, the breathable flyknit vamp comprises a breathable surface, support strips and air guide vanes, a plurality of breathable holes distributed in an array are formed in the breathable surface, the plurality of support strips are distributed around the breathable holes, two ends of each support strip respectively point to two adjacent breathable holes, and the air guide vanes are arranged on the breathable surface. The supporting strips are of a structure sunken in the surface of the ventilation face, the multiple air guide pieces are distributed around the multiple ventilation holes, the middle sections of the air guide pieces protrude in the direction away from the ventilation face, the air guide pieces and the ventilation face surround to form an air inlet and an air outlet which are communicated, and air outlet is closer to the ventilation holes than the air inlet. The sectional area of the channel is unidirectionally reduced. According to the breathable flyknit vamp and the production method, the air guide pieces with the Venturi tube structures are formed through multi-needle bed integrated weaving and are communicated with the air holes in a directional mode, active ventilation is achieved through the foot arch in the walking process, and the breathable efficiency of the flyknit vamp is effectively improved.

The tidal power generation speed-increasing transmission mechanism comprises a face gear transmission device, one end of the face gear transmission device is connected with an external blade, and the other end of the face gear transmission device is connected with an overrun clutch transmission device; the planetary gear transmission device is connected with the overrun clutch transmission device; when bearing forward torque transmission, the forward torque is transmitted to the planetary gear transmission device through the face gear transmission device and is output at a high speed by the planetary gear transmission device, and the torque input direction and the torque output direction are opposite. When bearing reverse torque transmission, the reverse torque is transmitted to the face gear transmission device through the planetary gear transmission device, the face gear transmission device idles, the reverse torque is output by the planetary gear transmission device at a high speed, and the torque input direction and the torque output direction are the same.

This invention provides a single-motor two-speed hybrid system and vehicle, belonging to the field of new energy vehicles. It includes an engine, an input shaft, an intermediate shaft, a motor connected to the input shaft, a two-speed shift assembly, a power on / off assembly, and a drive axle. The power on / off assembly connects the engine and the input shaft. The engine and motor are located at opposite ends of the input shaft. The motor establishes a first transmission path with the drive axle through the input shaft, and a second transmission path through the input shaft and the intermediate shaft. When the power on / off assembly connects the engine and the input shaft, the engine establishes a third transmission path through the input shaft and the drive axle, and a fourth transmission path through the input shaft and the intermediate shaft. The two-speed shift assembly can simultaneously disconnect and periodically engage the first and second transmission paths, as well as the third and fourth transmission paths. This invention solves the problems of poor adaptability of existing single-motor single-speed hybrid systems and the complex structure of multi-speed hybrid systems.

The unloading device comprises an unloading device body, the unloading device body is installed on a steel pull rod, the unloading device body comprises two unloading units, each unloading unit comprises a jack, a cantilever plate and a baffle, one end of each cantilever plate is connected with the steel pull rod, the baffle is installed on the steel pull rod and is close to one end of the cantilever plate, and the jack is arranged on the steel pull rod. The jack is installed between the baffle and the other end of the cantilever plate, it is guaranteed that the resultant force direction of the unloading unit is still located on the center line of the steel pull rod, the steel pull rod mainly bears the pulling force between the huge column and the inclined strut, and in the unloading process, as the bearing force of the steel pull rod is gradually weakened, the pushing force of the jack to the cantilever plate is continuously increased; tension borne by the steel pull rod is converted into pressure of the cantilever plate on the jack, and therefore the state that the whole structure is kept balanced is achieved. After the steel pull rod is completely cut off, the unloading device body completely replaces the steel pull rod, then thrust of the jack is gradually reduced, and unloading work is completed.

The utility model discloses environment-friendly melamine impregnated paper which is characterized in that the inner surface of a protective frame is movably connected with an impregnated paper body, the impregnated paper body is formed by combining a surface protective layer, a decorative layer, a balance layer, a damp-proof layer, an enhancement layer, a sound insulation layer and a bottom layer, the decorative layer is fixedly connected to the lower surface of the surface protective layer, and the balance layer is fixedly connected to the lower surface of the surface protective layer. The balance layer is fixedly connected to the lower surface of the decoration layer, the damp-proof layer is fixedly connected to the lower surface of the balance layer, the enhancement layer is fixedly connected to the lower surface of the damp-proof layer, the sound insulation layer is fixedly connected to the lower surface of the enhancement layer, and the bottom layer is fixedly connected to the lower surface of the sound insulation layer. The environment-friendly melamine impregnated paper manufactured by seven layers with different effects has the advantages of wear resistance, moisture resistance, sound insulation, strength enhancement, attractive decoration, environmental protection and the like, the functionality of the product is improved, and the service life of the product is prolonged.

The utility model relates to the technical field of metal detection, and discloses a metal pipeline detection device, which comprises a processing box and a detection device body, the detection device body is arranged in the processing box, the processing box is provided with a working table, the detection device body is arranged on the upper side of the working table, the working table is provided with a fixed seat, and the fixed seat is arranged on the working table. A clamping assembly is installed on the fixing base, the fixing base is installed on the driving disc, placing openings are formed in the driving disc and the fixing base, a limiting rod is installed on the fixing base, a clamping rod is installed on the limiting rod, the clamping rod is inserted into the driving disc, and a rotating wheel is arranged at the end of the clamping rod. The driving disc is provided with the movable groove, so that pressure testing can be carried out on multiple side faces of the pipeline, the comprehensiveness and accuracy of detection are improved, the problems such as cracks in the pipeline can be found and solved, and potential safety hazards caused by neglecting of hidden problems are avoided.