952 results about "Square Shape" patented technology

The present invention relates to an adjustable center-mass weight assembly including a plurality of substantially concentric weights engaged by one or more capturing rods which can be extended from or retracted into a rotatable handle. As the handle is rotated in a first direction, the rods extend through consecutive weights to add weight and by rotating the handle in a second direction weight can be removed from the weight package. The weights can come in a variety of shapes but preferably they will be in the shape of cylinders, squares, or hexagons, for example, such that by disposing the handle across a central axis the weight can be centered.

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 rotor punching sheet, comprising a rotor punching sheet body, the surface of the rotor punching sheet body is provided with a plurality of conducting bar groove groups, the number of the conducting bar groove groups is eight, the conducting bar groove groups are distributed on the surface of the rotor punching sheet body in an annular array mode, the center position of the rotor punching sheet body is provided with a center shaft hole, and the center shaft hole is provided with a through hole. A protruding part is arranged on the inner wall of the central shaft hole, the protruding part is in a square shape, chamfers are arranged at the corners of the extending portion of the protruding part, a groove is formed in the connecting position of the protruding part and the central shaft hole, and a fool-proof groove is further formed in the inner wall of the central shaft hole. The inner wall of the central shaft hole is provided with the projection part, the groove and the fool-proof groove, thereby improving the identification degree, providing convenience for the accurate installation of the rotor punching sheet body, effectively preventing the damage of the key and the groove caused by the installation dislocation, and improving the installation firmness of the rotor punching sheet body.

A modular structural element (20) which is arranged to be connected to another such element so as to form an assembled structure, wherein the modular structural element is of substantially square outline or of substantially hexagonal or half-hexagonal outline, and the element comprises a principal height dimension and a principle lateral dimension, wherein, a ratio of the two said principal dimensions is no more than 6.

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.

The invention relates to the technical field of processing equipment, and discloses a dicing device which comprises a placing platform, a rotating assembly, a cutter assembly and a lifting assembly, and the placing platform is provided with a placing area. The rotating assembly is suitable for driving the containing platform to rotate by 90 degrees between the first position and the second position. The cutter assembly comprises a plurality of blades which are transversely and sequentially arranged, and the blades are suitable for downward cutting. The lifting assembly is suitable for driving the cutter assembly to ascend and descend between the third position and the fourth position. When the whole material in the tray is cut, the tray is placed in the placing area on the placing platform, and the cutter assembly is lowered to the fourth position through the lifting assembly for first cutting. And after the placement platform is rotated by 90 degrees through the rotating assembly, the cutter assembly is lowered to the fourth position through the lifting assembly for secondary cutting, the two cutting lines are perpendicular, and therefore the materials are cut into square blocks. The whole material can be cut into square blocks only through one-time rotation and two-time cutting, and compared with manual cutting, the cutting efficiency is higher.

The invention discloses a composite material tensile sample reinforcing sheet bonding tool and a bonding method thereof. The bonding tool comprises a clamping plate, an upper top plate and a lower top plate, a plurality of screw holes are formed in the edge and the center of the clamping plate, and square cushion blocks with through holes in the centers are arranged at the positions of the screw holes in the two sides of the clamping plate; a plurality of sample grooves are formed in the clamping plate and penetrate through the clamping plate, and the sample grooves are matched with samples in shape; screw holes are formed in the edges and the centers of the upper top plate and the lower top plate; a plurality of reinforcing sheet grooves are symmetrically distributed in the upper sections and the lower sections of the upper ejection plate and the lower ejection plate along the vertical center line respectively, the reinforcing sheet grooves are matched with the sample grooves, a reverse ejection hole is formed in the center of each reinforcing sheet groove, and a glue overflow hole is formed in the corner of each reinforcing sheet groove. By controlling the position between the sample and the reinforcing sheet, fixing the bonding position between the sample and the reinforcing sheet and adopting pressurized demolding, the reinforcing sheet in the obtained composite material tensile sample is precise in bonding and excellent in bonding performance.

The invention relates to the technical field of composite material engineering, and discloses a basalt fiber glass fiber reinforced plastic insulating arm and a preparation process thereof, and an arm body of an insulating plate is prepared by pultrusion and subsequent machining of the following components: 50-75 parts by mass of basalt fiber or fabric thereof; 25-50 parts by mass of an epoxy resin system; the flame retardant comprises 0.5-2 parts by mass of a coupling agent and 1-5 parts by mass of a flame retardant. The arm body is a square tubular object, one end of the arm body is provided with a diagonal plane, five first round through holes distributed in a Z shape are formed in one side wall, close to one end of the diagonal plane, of the arm body, and four second round through holes distributed in a square shape are formed in one side wall of the other end of the arm body. A reinforced framework is constructed by basalt fibers, an epoxy resin matrix is combined, and a pultrusion technology is adopted. The finished insulation arm not only shows the end part bearing capacity of about 1 ton and the high insulation level of 200 kilovolts, but also has the characteristics of excellent chemical corrosion resistance and light weight.

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.

An adjustable Aerolift leg comprising an outer tube, an inner tube, a lock mechanism and an adjustment rail. The inner tube may slidably fit into the outer tube. The inner tube and outer tube may be a square shape, a triangular shape, a circular shape or an eye shape. The shape of the inner tube may or may not depend on the shape of the outer tube. The lock mechanism may be located at an end of the inner tube, between the outer tube and the inner tube. The lock mechanism may lock relative movements therebetween. The adjustment rail may be disposed inside the inner cylindrical tube which may be inside the outer cylinder. The adjustment rail may receive the lock mechanism at one of several positions.

The invention discloses a three-view intercommunication calligraphy practicing method based on golden dot calligraphy practicing lattices. The golden dot calligraphy practicing lattices are combined with the three-view intercommunication method to achieve the calligraphy practicing effect. The golden point calligraphy practicing grid comprises square frame lines, the middle points of the adjacent sides of the square frame lines are connected through dotted lines to form an inscribed square auxiliary frame line, the middle points of the opposite sides of the square frame lines are connected through dotted lines to form a cross-shaped auxiliary line, and a golden section point I is arranged on the upper portion of the vertical line of the cross-shaped auxiliary line. A golden section point II is arranged at the left part of the horizontal line of the cross-shaped auxiliary line; the three-view intercommunication method is divided into three steps and nine steps. According to the three-view intercommunication calligraphy practicing method based on the golden point calligraphy practicing grid, through scientific visual space modeling, sensory collaborative training and a multi-dimensional evaluation system, the structural accuracy, stroke order logicality and line quality of Chinese character writing are improved; the training efficiency is high; the method is suitable for calligraphy education, children enlightenment education and adult hard-tipped pen / soft-tipped pen calligraphy improvement scenes.

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.

A framing system for a construction set comprising a number of interchangeable elements which can be arranged to construct a variety of three-dimensional structures, as well as individual, stand-alone floors, which in turn are adapted to be stacked on one another. In some embodiments, the system comprises at least one central unit, a plurality of outer mid-columns, at least one tie beam corner unit, and / or at least one curved beam unit which cooperate to form a variety of stand-alone floors. The system comprises additional components which increase the stability of the construction set, including but not limited to internal corner brackets, cross pins, cross studs, square panels, and rectangular panels.

The utility model discloses a water body purification ecological floating island, and particularly relates to the technical field of ecological floating islands, the water body purification ecological floating island comprises a planting pot used for planting plants, a floating bed plate is arranged at the outer end of the planting pot, and the cross section of the floating bed plate is in a regular octagon shape; splicing assemblies used for connecting the multiple floating bed plates together are installed on the side edges of the floating bed plates. The splicing assembly comprises eight triangular floating plates, the eight triangular floating plates are movably connected with the eight side edges of the floating bed plate through hinges respectively, and the cross section of each triangular floating plate is in the shape of an equilateral right triangle. According to the utility model, the triangular floating plates at different positions are turned over downwards, so that the single ecological floating bed is square, all the triangular floating plates are turned over downwards, so that the single ecological floating bed is regular octagonal, the shapes and types of the single ecological floating bed are enriched, and the single ecological floating bed provided by the utility model can have different shapes after being spliced.

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.

The invention discloses a novel three-dimensional snowflake plate-shaped negative Poisson's ratio structure. A unit cell structure of the novel three-dimensional snowflake plate-shaped negative Poisson's ratio structure is composed of a double-folding bent plate, a trapezoidal bridge, a type I bearing column and a type II bearing column. The thickness of the double-folded bent plate is t, and the length of a middle folded corner is 2t; the included angle between the inner concave plate surface and the adjacent horizontal plane and the included angle between the trapezoidal bridge and the horizontal plane are a; the distance between the starting point of the longitudinal concave part and the I-shaped bearing column and the distance between the starting point of the transverse concave part and the center are both L; the I-shaped bearing column is a cuboid with a square section, and the side length of the bottom surface is d; and the width of the peripheral bent plate is l. The novel three-dimensional snowflake-plate-shaped negative poisson ratio unit cells are of a complete structure formed through transverse rotation and longitudinal array combination, the adjacent unit cells along the diagonal oblique lines share 1 / 2 bent plates, and the unit cell bearing columns and the bent plates adjacent in the vertical direction intersect. The novel three-dimensional snowflake-plate-shaped negative Poisson's ratio structure has an obvious negative Poisson's ratio effect and good energy absorption capacity in the vertical direction.

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 multi-bat combined rolling tracing disc. At present, a related logic intelligence development structure for correspondingly changing a rolling target object structure according to a predetermined requirement and then actually deducing a rolling path does not exist. The self-combination bat rolling block comprises a self-combination bat rolling block and a base plate, a foundation block comprises a first square inner core body, eight first hollow spherical shells and twelve first convex edges, one first hollow spherical shell is arranged at each end corner of the first square inner core body, and one first convex edge is correspondingly arranged at each edge length position of the first square inner core body; the two ends of each first protruding edge are fixedly connected with the two first hollow spherical shells close to the first protruding edge correspondingly. Two first connecting holes are machined in the outer wall of each first hollow spherical shell, each first connecting hole communicates with the interior of the corresponding first hollow spherical shell, and each end face of the first square inner core body is a first concave face; a matrix groove is machined in the top face of the base plate, and the foundation block rolls on the base plate in the length direction and / or the width direction of the matrix groove.

The present invention discloses a three-speed MOA adjustment structure with zero adjustment and locking functions, which relates to the technical field of sights. The present invention includes a handwheel seat, an adjustment handwheel, a sealing pressure ring, a gear shaft, an adjustment screw, an adjustment pin, a sealing pressure ring and a set screw; the adjustment screw is located inside the handwheel seat, the adjustment screw is threadedly connected to the handwheel seat, the lower end of the adjustment screw is provided with an adjustment pin, the lower end of the gear shaft is placed on the inner side of the handwheel seat, a square hole is provided inside the gear shaft, and the upper end of the adjustment screw is set to a square shape. The present invention adopts a multi-structure coordinated design to ensure that the quality of the device is stable and reliable, the operation is convenient and smooth, and it is convenient for users to calibrate the gun and debug during daily use, which greatly saves the user's time. The three-speed MOA adjustment structure with zero adjustment and locking functions fills the gap in the international market, solves many shortcomings in existing product structures, and has a very broad prospect.

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.

The invention provides a mathematical function display teaching aid, and relates to the field of teaching props, the mathematical function display teaching aid comprises a base rod and a rectangular frame, the base rod is L-shaped, the upper end of the base rod is bent to be connected with the rectangular frame, the upper end of the base rod is located at the axis of the rectangular frame, the upper end of the base rod is connected with a center shaft needle, and the center shaft needle penetrates through the center of the rectangular frame. Four square plates are embedded in the front face of the rectangular frame, and a graduated scale is arranged between every two adjacent first thin rods. The mathematical function display teaching aid is composed of a rectangular frame, a square plate, a plurality of thin rods, a plurality of turntables, a center shaft needle and a connecting rod, a trigonometric function image is formed through the thin rods and the connecting rod, the included angle between the thin rods can be changed through the turntables, different function diagrams can be made conveniently, and the application range is widened. Adjustment is faster, and the situation that time is wasted and the teaching progress is affected is avoided. The small bulbs, the white light-transmitting plate and the magnetic powder are arranged in the hollow square plate for cooperation, so that the recognition degree of the thin rod is improved, and students in the distance in the back row can see clearly.

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.