465 results about "Square Shape" patented technology

The invention relates to a multistable mechanical metamaterial structure with a tension characteristic, which belongs to the field of mechanical metamaterials and mainly comprises a multistable mechanical metamaterial cell structure, and the multistable mechanical metamaterial cell structure comprises a tension integral structure component, a degree-of-freedom constraint component and a connecting component. Under the action of a tensioning integral structure, when the structure is not subjected to external load, the structure is subjected to interaction of internal stress, and the balance is achieved in a self-stabilization state; according to the multistable mechanical metamaterial cell element structure with the tension characteristic, the structure of the position where each side of the square outline is located has two steady-state configurations, and the cell element structures are connected through a rectangular array to form the multistable mechanical metamaterial structure with the tension characteristic. The tensegrity structure and the mechanical metamaterial structure are combined, the types of existing mechanical metamaterial cell element structures are enriched, and a brand new direction is opened up for design, analysis and application of the tensegrity mechanical metamaterial structure.

The utility model discloses a bolted assembly type airport pavement structure, which comprises a plurality of adjacent prefabricated concrete upper cover plates and a plurality of prefabricated concrete base plates, the prefabricated concrete upper cover plates and the prefabricated concrete base plates are in bolted connection, each prefabricated concrete upper cover plate comprises an upper cover plate central part and four flange parts, the upper cover plate central part is a cube with the thickness of h, four flange parts with the thickness of h / 2 are arranged on the upper edges of the four side edges of the central part of the upper cover plate and partially extend outwards, the length of the long edge of each flange part is smaller than that of the central part of the upper cover plate, and the adjacent flange parts are not connected with each other; a boss is formed in the middle of the square precast concrete base plate with the thickness of h / 2, and the top face of the boss and the top face of the precast concrete upper cover plate are spliced to form a complete plane. The connecting mode is simple and practical, assembling and disassembling operation is easy and convenient, force transmission performance is excellent, and the stress requirement of an airport pavement structure is completely met.

The invention relates to the technical field of steel structure construction, and particularly discloses a steel structure welding butt joint device for steel structure construction, which comprises a fixing structure, a first supporting structure and a second supporting structure, the fixing structure is detachably clamped on a bearing column or a cross beam of a steel structure, the first supporting structure is detachably arranged on the fixing structure, and the second supporting structure is detachably arranged on the bearing column or the cross beam of the steel structure. The first supporting structures can be located on the front side and the rear side or the left side and the right side of the fixing structure, the first supporting structures are used for bearing and limiting steel structures in butt joint, the second supporting structures are detachably arranged on the fixing structure, and the second supporting structures can be located on the front side and the rear side of the fixing structure. The two sides of one side of the H-shaped steel frame are clamped and locked through the clamping bases, and stable clamping is achieved; meanwhile, steel frames in various shapes such as a rectangular shape, a square shape and a round shape can be clamped, fixed and subjected to bearing butt joint limiting through the clamping and bearing design, and butt joint devices do not need to be independently arranged for the steel frames in different shapes and specifications.

A Zn—Al—Mg-based hot-dip plated steel sheet includes a hot-dip plated layer formed on a surface of a steel sheet, in which the hot-dip plated layer contains, as an average composition, Al: 5 to 22 mass % and Mg: 1.0 to 10 mass %, with a remainder including Zn and impurities, and in a case where a 5 mm square cross section parallel to a surface of the hot-dip plated layer is exposed at any position of a 3t / 4 position, a t / 2 position, and a t / 4 position from the surface with a thickness of the hot-dip plated layer represented by t, a ratio (B / A (%)) of an area fraction B of a [Zn phase] to a total area fraction A of a [Zn phase] and an [Al / MgZn2 / Zn ternary eutectic structure] of a plating microstructure in at least one cross section is 20% or more.

The present disclosure is directed toward systems, methods, and non-transitory computer readable media that provide a differentiable tiling system that generates aesthetically plausible, periodic, and tile-able non-square imagery using machine learning and a text-guided, fully automatic generative approach. Namely, given a textual description of the object and a symmetry pattern of the 2D plane, the system produces a textured 2D mesh which visually resembles the textual description, adheres to the geometric rules which ensure it can be used to tile the plane, and contains only the foreground object. Indeed, the disclosed systems generate a plausible textured 2D triangular mesh that visually matches the textual input and optimizes both the texture and the shape of the mesh and satisfy an overlap condition and a tile-able condition. Using the described methods, the differentiable tiling system generates the mesh such that the edges and the vertices align between repeatable instances of the mesh.

To provide a transparent three-dimensional maze that can be made without using a mold. [Solution] The three-dimensional maze is made up of squares including U-shaped and L-shaped sections that are created by cutting and bending a transparent plate with vertical and horizontal lines or shallow grooves that form the sides of the grid squares, and includes a box 7 with three sides.

The utility model discloses a shading fabric which comprises first areas, second areas and a base cloth area, the first areas and the second areas are alternately arranged in the fabric breadth direction, the first areas are connected with the base cloth area, the second areas are connected with the base cloth area, each first area comprises two first convex areas and two first concave areas, and each first convex area comprises two first convex areas and two first concave areas. Each second area comprises two first rectangular areas and two second rectangular areas, the first convex areas and the first concave areas are square, and the first rectangular areas and the second rectangular areas are rectangular. According to the utility model, the two weaves and the plain weaves are connected and interwoven to form the rectangular and square alternate arrangement, so that the structure of the fabric is relatively compact, and the rectangular and square surfaces are concave-convex, so that light rays can be reflected for multiple times at different angles, the path length of the light rays on the surface of the fabric is increased, and the direct penetration of the light rays is reduced; therefore, the shading effect of the fabric is improved.

The invention discloses a method for determining the pile spacing of ultra-deep vibro-replacement gravel piles based on the pile-soil volume replacement rate, which comprises the following steps: before vibro-replacement gravel pile construction, selecting a plurality of representative construction sites in a construction area as ultra-deep vibro-replacement gravel pile construction pile spacing test sites; in each test site, taking a square, and constructing gravel piles for foundation reinforcement at four vertexes of the square to form four gravel piles distributed in a square shape; according to the square area of each test site and the depths of the four gravel piles, the pile-soil volume replacement rate of each test site is calculated; the pile-soil volume replacement rate obtained through calculation of each test site is compared with a pre-designed replacement rate, and the optimal pile-soil volume replacement rate is obtained; and according to the optimal pile-soil volume replacement rate, the pile spacing of the ultra-deep vibro-replacement gravel piles in the construction area is determined, so that the gravel piles are planned and constructed in the construction area according to the determined pile spacing.

A kit of parts for use in demountably configuring a variety of structural assemblies. A kit may comprise a plurality of cylindrical structural components configured for engagement with various types of male connector components along the sides or at the ends of the cylindrical structural components, there provided for demountable engagement of a female-end socket component at the end of another cylindrical structural component. The kit may additionally comprise components for one or more of roller carriage assemblies and / or one or more of sliding carriage assemblies configured for rolling or sliding movement along rail assemblies comprising a plurality of cylindrical, square, rectangular, or octagonal track components. The rail assemblies may be supported by bases comprising the cylindrical structural components and other components such as weight components, as well as threaded foot components or threaded caster components on which the rail assemblies can be adjustably levelled.

The utility model discloses a protective shed for constructional engineering, and relates to the technical field of protective sheds, the protective shed comprises four height adjusting assemblies and four plugging assemblies, the four height adjusting assemblies and the four plugging assemblies are arranged in a square shape together, a ceiling assembly is installed at the tops of the four height adjusting assemblies, and the four height adjusting assemblies and the four plugging assemblies are arranged in parallel. The height adjusting assembly is used for adjusting the height of the ceiling assembly, and the ceiling assembly is used for protecting the top of the protective shed. By pulling down the nylon gauze, the carrying rod can be pulled to rotate, the carrying rod releases the nylon gauze wound on the carrying rod, in this way, the nylon gauze is pulled out by a worker, plugging of the side of the protective shed can be completed in a matched mode according to the adjusted height of the ceiling assembly, and the nylon gauze has certain light transmission in the using process; and workers can walk in the protective shed more conveniently.

The application relates to a de-orbiting sail device, belonging to the technical field of aircraft de-orbiting, which comprises a box body, the box body comprising a top plate, a bottom plate and four right-angle side plates, the four right-angle side plates movably surrounding the top plate and the bottom plate, the four right-angle side plates being spliced into a square shape, the side of the top plate and the bottom plate close to each other being fixed with a limiting plate, the limiting plate being abuttable with the outer side wall of the right-angle side plate, a stretching mechanism being arranged in the box body, the stretching mechanism comprising two first rotating shafts rotatably arranged on the top plate and two second rotating shafts rotatably arranged on the bottom plate, memory alloy rods being wound on the first rotating shafts and the second rotating shafts, the ends of the memory alloy rods away from the first rotating shafts or the second rotating shafts being fixedly connected with the right-angle side plates, the inner side edges of the right-angle side plates being fixed with a sail body, the box body further comprising a locking mechanism for locking the stretching mechanism and a promoting mechanism for promoting the stretching of the memory alloy rods, when the bottom plate and the top plate are away from each other, the memory alloy rods are stretched to make the right-angle side plates away from each other to unfold the sail body.

This utility model relates to a noise reduction structure for a DC motor, wherein the noise reduction structure (1) is disposed within a cavity for accommodating a commutator (2) and close to the sound source. The noise reduction structure (1) can be a honeycomb structure, a square structure, a circular structure, or a regular polygonal structure, and can be disposed on the bottom surface of the cavity, or simultaneously on the sidewalls and bottom surface of the cavity. The noise reduction structures (1) can be evenly distributed on the bottom surface and sidewalls of the cavity, or staggered. In addition, the noise reduction structure (1) can also be disposed within the cavity of a gearbox (5), including at the bottom of the gearbox cavity (6), or simultaneously on the bottom and cavity walls of the gearbox cavity (6). Using this noise reduction structure for a DC motor, the sound waves generated by the sound source are effectively reflected and canceled out by the noise reduction structure, thus reducing the noise of the DC motor and possessing certain practical value.

The utility model discloses a pole piece lineation mechanism, which is characterized in that a pole piece is placed between a bottom plate and a pressing plate, so that the pole piece can be fixed, then a sliding frame slides along a guide rail, so that four blades are respectively positioned above four lineation grooves, and a cutter adjusting plate moves along the vertical direction under the action of a guide assembly; the knife adjusting plate is pressed down to drive the blade to penetrate through the scribing groove to scribe the pole piece, four notches are formed in the pole piece, four points A, B, C and D are marked on the four notches and are arranged in a square shape, the length ratio of AB, CD, BC and AD before and after rolling is calculated, and the elongation percentage of the pole piece in the transverse and longitudinal X / Y directions is obtained; the length ratio of AC to BD before and after rolling is calculated, and the lateral bending warping rate of the pole piece is obtained.

This product is a formwork block used when manufacturing riverbed protection blocks to be installed on the riverbed, and is particularly used in areas adjacent to the slope of the revetment. As shown in the reference perspective view illustrating each part, reference diagram 1 (plan view) illustrating each part, reference diagram 2 (front view) illustrating each part, and reference diagram 3 (plan view) illustrating each part, at the block installation site on the riverbed, this product is erected at two corner positions in a square shape in plan view, on the slope side of the revetment, so that the tapered portion of this product is in contact with the slope. At the other two locations, formwork blocks as shown in the reference perspective view illustrating standard type formwork blocks are erected, and adjacent formwork blocks are connected with formwork plates to form a square-shaped structure in plan view, and concrete is poured into this structure to manufacture the riverbed protection block. As shown in the reference diagram illustrating the state in which revetment blocks are installed on the riverbed, riverbed improvement work is carried out by installing a revetment-type revetment block using this product on the riverbed so that one end is in contact with the slope of the revetment, and another standard-type revetment block is installed in contact with the other end of the revetment-type revetment block, thereby laying down multiple revetment blocks.

An X-band high-efficiency absorber based on dispersive materials and resin belongs to the field of electromagnetic absorbing materials technology. The absorber consists of an N-layer structure, each layer being a combination of two fiber-reinforced laminates. The first fiber-reinforced laminate is a cross-shaped fiber laminate, with a square cross-section of the base portion having a side length of w, made of resin. The fiber portion has a cross-shaped cross-section, and the width of the fiber in the i-th layer is x. i Another type of fiber-reinforced laminate is an X-shaped fiber laminate. The base portion has a square cross-section with a side length of w, and is made of resin. The fiber portion is obtained by rotating the fiber portion of a cross-shaped fiber laminate around its center by 45°. The high-efficiency absorber proposed in this invention, based on dispersive materials as fibers and resin as a substrate, can achieve electromagnetic wave attenuation of over -20dB in the X-band (8GHz-12GHz) through excellent design. It achieves the absorption effect by converting electromagnetic energy into heat energy through dielectric loss.

1. The name of the design product: the surface veneer of sound-absorbing board (square). 2. The use of the design product: pasted on the surface of thin felt, flat board or sound-absorbing board, as decorative wallboard and ceiling in KTV room, large conference room and other places. 3. The design points of the design product: the unit pattern is a square with size matching and its diagonal, and the unit pattern is formed by a plurality of circular holes arranged in sequence. 4. The picture or photo that best shows the design points: perspective view. 5. The right view is the same as the left view, and the right view is omitted; the rear view is the same as the front view, and the rear view is omitted; the top view is the same as the bottom view, and the top view is omitted.

The invention relates to a grain-oriented electrical steel sheet and a method for manufacturing the same. In the grain-oriented electrical steel sheet, a plurality of magnetic domain control processing lines extending in a direction intersecting the rolling direction are provided on the surface, a square evaluation region having a length of 50 mm on one side and parallel to the rolling direction on the other side is set on the surface, and a plurality of magnetic domain control processing lines extending in the direction intersecting the rolling direction are provided inside the evaluation region. When imaginary lines parallel to the rolling direction and having a length of 50 mm are set at 5 mm intervals in a direction perpendicular to the rolling direction, in at least one of the imaginary lines, the maximum value of the interval in the rolling direction between adjacent intersection points among a plurality of intersection points of the imaginary line and the plurality of magnetic domain control processing lines exceeds 20 mm. The average magnetic domain width measured along the imaginary line is 600 [mu] m or less, and the plurality of magnetic domain control processing lines are tensile stress introduction lines into which a tensile stress of 40 MPa or more is introduced.

The utility model belongs to the technical field of bucket-wheel excavators, and particularly relates to a portal frame of a bucket-wheel excavator, which comprises a base and a transverse support, a plurality of first side supporting pieces are mounted above the base, a plurality of first inclined supporting pieces are mounted below the transverse support, and the first inclined supporting pieces are fixedly or detachably connected with the first side supporting pieces respectively. Compared with the prior art, the base, the first side supporting pieces, the first inclined supporting pieces and the transverse support form the square shape, the stability and the bearing capacity of the portal frame are improved, force can be more evenly distributed on the first side supporting pieces and the base in the force transmission process, the situation that local stress is too large is reduced, and the service life of the portal frame is prolonged. And the structural strength and stability of the whole portal frame are improved.

The grain-oriented electrical steel sheet is provided with a plurality of magnetic domain control processing lines extending in a direction intersecting the rolling direction on the surface, a square evaluation region having one side length of 50 mm and the other side parallel to the rolling direction is set on the surface, and a plurality of magnetic domain control processing lines extending in the direction intersecting the rolling direction are set inside the evaluation region. When virtual lines parallel to the rolling direction and having a length of 50 mm are set at 5 mm intervals in a direction perpendicular to the rolling direction, in at least one of the virtual lines, the maximum value of the interval in the rolling direction between adjacent intersections among a plurality of intersections between the virtual line and the plurality of magnetic domain control processing lines exceeds 20 mm, and the maximum value of the interval in the rolling direction between adjacent intersections among the plurality of intersections among the plurality of magnetic domain control processing lines exceeds 20 mm. And the average magnetic domain width measured along the imaginary line is 600 [mu] m or less.

silicon wafer (10) wherein the 50% threshold of a nanotopography within a 2 mm square spot having a size with a length in at least one direction of 2 mm and an area of ​​4 mm 2 exhibits 1.0 nm or less, and wherein the 50% nanotopography threshold is less than or equal to 0.4 times the 99.5% nanotopography threshold.

1. Name of the product in this design: Ice Cube Cube (square). 2. Purpose of this design: A mold for making ice cubes. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention relates to a forging method for improving the grain size of austenitic stainless steel pipes with nozzles. The method involves taking an electroslag ingot with a diameter of Φ1000–1200 mm, holding it at 1180±10℃ for 9–12 hours, and then drawing it to form a billet. After returning the billet to the furnace, the temperature is raised to 1200±10℃ and held for 7–8 hours. The billet is then upset with a flat upsetting cap, drawn into a flat square shape, and marked to form a flat square billet. This flat square billet is held at 1180±10℃ for 3–4 hours, drawn to lengthen both ends, and staggered to form a billet with a staggered nozzle. This staggered nozzle billet is held at 1150–1180±10℃ for 3–4 hours and then drawn, completing the forging process in one firing. This four-firing forging method for pipes with nozzles achieves a grain size ≥4 in the forging body, significantly improving the overall grain size of the austenitic stainless steel pipe with nozzle.

1. Name of the designed product: packing bag (series 2 of rice in a square shape). 2. Use of the designed product: the designed product is a packing bag for rice. 3. Design points of the designed product: the combination of shape and pattern. 4. Picture or photo best indicating the design points: design 1, perspective view. 5. Design 1 is designated as the basic design.

The utility model discloses a seed storage refrigerator with a refrigeration function, which comprises a freezer, a base and a storage plate, and the input end of the freezer is electrically connected with an external power supply; the front side and the rear side of the upper surface of the base are fixedly connected with triangular supporting frames which are evenly distributed, connecting plates are fixedly connected between the front triangular supporting frames and the rear triangular supporting frames which are adjacent, the lower surface of the base is fixedly connected with supporting feet which are evenly distributed, and the supporting feet make contact with the bottom wall of the freezer. Limiting rods are arranged at the four corners of the edge of each storage disc, the storage discs are stacked among the four adjacent triangular supporting frames distributed in a rectangular shape, first round corners are arranged at the ends, away from the base, of the limiting rods and make contact with the inclined faces of the adjacent triangular supporting frames, and end covers are arranged at the upper ends of the storage discs and are in a concentric-square shape. According to the seed storage refrigerator with the refrigeration function, by reducing the contact area between the storage disc and the supporting frame, freezing at the contact position is reduced, and the storage disc is convenient to take out.

The loudspeaker automatic assembly production line comprises a bearing jig, the top of the bearing jig is provided with four positioning grooves which are arranged in a square shape, the bearing jig is internally provided with a mounting cavity and a mounting groove, the mounting cavity is located among the four positioning grooves, and the inner circumferential wall of the mounting cavity is provided with four limiting holes; the four limiting holes communicate with the four positioning grooves correspondingly, lock beads are installed in the limiting holes, a rotary disc is installed in the installation cavity, receding grooves corresponding to the lock beads are formed in the peripheral wall of the rotary disc, the side walls of the receding grooves can push the lock beads to move, a lock rod is installed in the installation groove and drives the rotary disc to rotate through a transmission structure, and an unlocking piece is rotationally installed in the installation groove. The unlocking piece is provided with a clamping block, the side portion of the lock rod is provided with a step portion used for being connected with the clamping block in a clamped mode, and the lock rod and the unlocking piece are connected with reset springs respectively. According to the automatic assembly production line for the loudspeakers, the loudspeaker bottom shells arranged on the bearing jigs are locked through a pure mechanical structure, and the accuracy of the whole assembly process is ensured.

The utility model discloses a PEEK gear rubber coating rotation stopping structure which comprises a base, the upper end of the base is fixedly connected with a vertically-arranged supporting plate, the back face of the supporting plate is fixedly connected with a support arranged in a square shape, the inner bottom of the support is fixedly connected with a servo motor, and the servo motor is fixedly connected with a rotating shaft. The tail end of an output shaft of the servo motor is fixedly connected with a vertically-arranged worm, the upper end of the worm is rotationally connected with the inner top of the support, a worm wheel meshed with the worm is transversely arranged in the support, and a transversely-arranged rotating rod is fixedly inserted into one end of the worm wheel. One end of the rotating rod penetrates through the worm gear and is rotationally connected with the inner side wall of the support, the front face of the supporting plate is fixedly connected with a longitudinally-arranged supporting column, and a circular containing groove is formed in the supporting column. Through ingenious design of mechanisms such as the clamping blocks and the lead screws, effective clamping and rotation stopping of gears of different specifications are achieved, meanwhile, the self-locking anti-loosening characteristic is achieved, the practical performance is remarkably improved, and the application range is widened.

The utility model provides a wardrobe connecting frame injection mold, and belongs to the technical field of molds. The connecting frame forming die comprises an upper die plate and a lower die plate, four sets of connecting frame forming assemblies distributed in a rectangular array mode are arranged between the upper die plate and the lower die plate, and each connecting frame forming assembly comprises a middle partition piece with the square section and connecting frame forming cavities symmetrically formed in the two sides of the middle partition piece. The connecting frame forming assembly between the upper mold plate and the lower mold plate can form two wardrobe connecting frames in an injection molding mode at a time, the middle partition piece can divide the two connecting frame forming cavities, and the connecting frame main body forming part, the two connecting arm forming parts and the two adapter shaft forming structures can form a connecting frame main body, a connecting arm and an adapter shaft in the injection molding process. According to the reinforcing plate rib forming structure, the reinforcing plate rib can be formed on the connecting frame, so that the strength of the connecting frame can be improved, and the connecting frame is prevented from deforming in the using process.