21 results about "Hypotenuse" patented technology

A multi-purpose framer's speed square in the form of a right triangle comprising a top plate with a T-shaped edge and a series of etched top plate lines including framing top plate call outs, a notched front edge having a plurality of notches spaced along the length in ¼″ increments, ruler etching callouts, and lumber width callouts denoting lumber sizes, and a hypotenuse edge having etched top plate lines, common rafter window plumb cut outs and a hip / valley section disposed above the hypotenuse edge having etched degrees and hip / valley roof rafter plumb cuts.

The utility model discloses a packing carton with a buffer structure, which relates to the technical field of packing cartons and comprises a carton body and a bottom layer, the bottom layer comprises a buffer layer, a support layer, a foam layer, a bearing layer and a group of damping strips, a group of protective corners for keeping stability are fixedly connected in the carton body, the foam layer is mainly used for buffering and damping, and the bearing layer is used for bearing the buffer layer. The shock-absorbing cushion has good elasticity and compressibility, can quickly deform and absorb a large amount of impact energy when an article is impacted, effectively protects the article in the cushion from being collided and damaged, the honeycomb structure can absorb energy through tiny deformation of the honeycomb structure and compression of air, the buffering and shock-absorbing effects are achieved, and triangles for protecting corners have stability; compared with the prior art, the structure can be kept relatively stable and not prone to deformation when being subjected to external force, meanwhile, the bevel edges of the triangle can guide impact force to be dispersed in the specific direction, energy is absorbed through extrusion and deformation of materials, and the corner of an object is well protected.

The utility model discloses a formwork wall installation perpendicularity measuring tool, relates to the technical field of building construction quality acceptance, and solves the problems that a perpendicularity measuring tool in the prior art is inconvenient to move and operate and low in use flexibility. A formwork wall installation perpendicularity measuring tool comprises a triangular support, the triangular support is of a right triangle structure, a graduated scale is arranged on one vertical edge of the triangular support, a supporting rod is arranged on the bevel edge of the triangular support, and a drop hammer is hung on the supporting rod. According to the tool, the structure of the supporting component is simplified, the triangular support which is simple and light in structure is arranged, taking and moving use are convenient, the calibrated scale is arranged and matched with the suspended drop hammer, whether the wall point position corresponding to the vertical edge where the calibrated scale is located deviates or not can be measured, and the inclination deviation degree can be determined. Moreover, the tool is light in structure, can achieve real-time measurement of the perpendicularity of the formwork wall in the installation process under various working conditions, and has the advantages of being accurate in measurement, easy and flexible to operate, rapid in paying off and the like.

The utility model discloses a PCB (printed circuit board) warpage measuring tool, which relates to the technical field of PCB detection, and comprises a measuring tool, the measuring tool is a right triangle plate, the included angle between the long straight edge and the bevel edge of the measuring tool is 10 degrees, the long straight edge of the measuring tool is provided with scale marks, and the bevel edge of the measuring tool is detachably provided with a support assembly. According to the utility model, the measuring tool is a right triangle with the angle of 10 degrees, the long straight edge of the measuring tool is provided with the scale marks, during measurement, the hypotenuse of the triangle is taken as the bottom, the measuring tool is inserted into the warping area, the scale of the long straight edge is read and recorded after insertion, and the warping value is obtained by multiplying the scale by sin 10 degrees, so that the measuring tool is simple and convenient to operate and does not need to be like a feeler gauge and a needle gauge; and different specifications need to be used for comparison one by one, so that the data measurement efficiency can be effectively improved.

This invention belongs to the field of bridge construction surveying technology, specifically a method for measuring the verticality of bridge tower piers at close range and with large inclination angles in mountainous areas. The method includes: S1, calculating the angle between the intersection hypotenuse and the vertical line of the tower pier based on the known elevation and measured slope distance of the measuring point at the top of the tower pier, then calculating the horizontal distance and solving for the first corrected coordinates of each measuring point, thus avoiding vertical angle observation errors under large inclination angles; S2, accurately measuring the actual distance between the measuring points of the two tower piers, and using this as a constraint to adjust the first corrected coordinates to obtain a high-precision second corrected coordinate for the center of the tower top; S3, calculating the verticality based on the second corrected coordinates of the tower top and the known coordinates of the tower bottom. This invention effectively overcomes the problem of low measurement accuracy caused by close-range, large-inclination angle observations in narrow mountainous terrain, eliminates the need for multi-layered control networks, improves measurement efficiency and accuracy, and reduces operational risks and costs.

The utility model relates to the technical field of measuring tools, in particular to a metal set square ruler structure, which comprises an integrally formed triangular metal substrate, and is characterized in that the triangular metal substrate is integrally of an isosceles triangle structure and is provided with a first right-angle side, a second right-angle side and an inclined side, the first right-angle side, the second right-angle side and the bevel edge are all provided with continuous length scales, according to the metal set square ruler structure, the integrally-formed 6061 aluminum alloy base plate is combined with hard anodic oxidation treatment, the abrasion resistance and the structural strength are remarkably improved, and it is ensured that deformation is avoided after long-term use; metric / English dual-system scales are arranged on the three edges, different measurement requirements are met, oblique dimensions can be directly measured through the bevel edge scales, and the drawing flexibility is improved; a center hollow light-weight groove reduces the weight, meanwhile, three measurement channels extend, two of the three measurement channels are parallel to the right-angle side so that parallel lines can be drawn conveniently or positioning can be assisted, and the third channel provides oblique measurement support.

This application discloses a robot base station and a robot system. The robot base station includes a charging station and a first coil connected to the charging station. The charging station and the first coil form a right-angled triangle structure. The first coil includes a first connecting segment, a second connecting segment, and a third connecting segment arranged sequentially. The first and second connecting segments are the legs of the right-angled triangle structure, and the third connecting segment is the hypotenuse of the right-angled triangle structure. The length of the first connecting segment is greater than that of the second connecting segment. The charging station is located on the first connecting segment, and the first connecting segment is at least partially the path for the robot to return to the charging station. Thus, the first coil and the charging station form a right-angled triangle structure. When the robot returns to the charging station along the first connecting segment, the magnetic field generated by the first coil guides the robot back to the charging station for autonomous recharging. During this process, the difference in magnetic field strength detected on the left and right sides of the robot can remain constant, allowing the robot to dock with the charging port of the charging station with maximum efficiency and precision.

The invention discloses a method and device for calculating the maximum output voltage of a two-level voltage type frequency converter, and the method comprises the steps: forming an equilateral triangle according to the straight lines where two basic voltage vectors are located and the vertexes in a sector where a space electrical angle is located, calculating the length of a vertical line perpendicular to the third side of the equilateral triangle from the central point of the space voltage vector distribution diagram; mapping the difference between the working durations of the two basic voltage vectors to the third edge; taking the vertical line as a right-angle side, taking the difference between the working durations of the two basic voltage vectors on the third side as the other right-angle side, calculating the lengths of bevel edges corresponding to the two right-angle sides by adopting a preset optimal gradient method, and taking the lengths of the bevel edges as the maximum output voltage of the frequency converter; according to the optimal gradient method, the hypotenuse of the triangle is calculated by using two right-angle sides through a dichotomy and an error feedback updating mode. The maximum output voltage of the two-level voltage type frequency converter can be quickly and accurately calculated, and the calculation efficiency is improved.

The utility model discloses a kind of cantilever canopy connecting mechanisms, it is related to building construction technology field, including support column, cantilever beam mechanism, vertical section steel beam, horizontal buckling plate, rod end, sealing ring, crossbeam, horizontal section steel beam, vertical buckling plate, threaded steel pole, after profile branch beam on support column and sand strip are fixed by welding by construction personnel assembly, support column and vertical section steel beam are respectively combined with horizontal section steel beam and are welded at right angle structure, again erect the end of ear plate lock buckle hoop cap combined beam of cantilever beam mechanism and beam member inclined frame on the hypotenuse of cantilever's right angle structure Let canopy preliminary forming, and beam steel component is combined in ear plate lock buckle hoop cap by cap piece and hoop ring superposition and is buckled to prevent decoupling stable, let arc edge ring and gap mouth play the stress node bearing strength elasticity unloading of flexible wrapping, similarly sealing ring is also elasticity unloading, ear plate lock buckle hoop cap and cap piece and hoop ring prevent decoupling form steel component bearing unloading high-strength support effect.

This invention relates to the field of UAV image processing technology, specifically to a method and system for diagnosing secondary degradation of alpine grasslands based on multi-source data. Existing technologies suffer from the following drawbacks: low image processing accuracy, large data processing errors, and a lack of spatiotemporal comparability. To address these shortcomings, this invention first acquires images using the hypotenuse target method and calculates the modulation transfer function characteristic parameters to construct a multi-scale Gaussian space. An adaptive threshold algorithm is used to determine and fix thresholds, achieving binarization of the multi-scale images. Connected components meeting certain conditions are extracted from the binary images at each scale, and their directional robust perimeters are calculated, forming a perimeter sequence. Based on the perimeter sequence, a logarithmic scale-perimeter curve is established, and the second derivative is calculated to determine the collapse scale and standard scale, calculating the geometric features of the connected components. Combining degradation judgment thresholds and proportional constraints, crack-type early degradation patches satisfying the condition with the maximum negative second-order curvature are identified, achieving automatic identification of secondary grassland degradation.

This invention discloses a core-pulling mechanism, comprising two or more core-pulling components. Each core-pulling component includes a slider, a sliding guide plate, and a guide rail. The slider is slidably connected to the sliding guide plate and the guide rail, respectively. The sliding guide plate is provided with a slide rail in the Y direction, and the slider is driven to slide along the Y direction. The guide rail is provided along the X direction, and the slider is driven to slide along the X direction. The slider slides simultaneously along both the Y and X directions. An acute angle is formed between the Y and X directions. This invention utilizes the synchronous sliding of the Y and X directions in the core-pulling mechanism to improve the core-pulling stroke to the hypotenuse of a right triangle. Compared to traditional core-pulling along a single X direction, by utilizing the principle that the hypotenuse is greater than the right-angled side, the core-pulling displacement stroke of product A is greatly shortened, thereby simplifying the mold structure, reducing mold processing costs, and solving important technical problems existing in the prior art.

The screw comprises a screw body, the end face of the pressing end of the screw body is a plane, a plurality of meshing teeth distributed at intervals in the circumferential direction are arranged on the end face, each meshing tooth extends from the center area of the end face to the edge area, the height of each meshing tooth is gradually increased in the extending direction, and the cross section of each meshing tooth is triangular. The size of the triangle is positively correlated with the height of the occlusion teeth, the triangle is provided with a bottom edge, a first shorter bevel edge and a second longer bevel edge, and the orientation of the second bevel edge is consistent with the screwing direction of the screw. When the screw is screwed tightly, the second bevel edge can smoothly guide a wire rod to be embedded to achieve meshing; and when being subjected to reverse vibration, the first bevel edge can form a mechanical stop, and meanwhile, the self-locking anti-loosening effect is achieved through the geometric design of the meshing teeth.

To provide a triangular pyramidal marker that can achieve the same or better effect than conventional cone-shaped markers, while also solving various problems. [Solution] The assembly-type sign 10 comprises three side frame bodies 12, 14, and 16 that are identical isosceles triangles, one base frame body 18 that is equilateral triangles, a first connector that connects the three side frame bodies 12, 14, and 16 to each other, the first connector maintaining a triangular pyramidal three-dimensional structure by connecting adjacent hypotenuses, and a second connector that connects the bases of the three side frame bodies 12, 14, and 16 to the three sides of the base frame body 18 that are opposite to them, the second connector more firmly maintains the triangular pyramidal three-dimensional structure, and when assembled and used as a sign 10, the base frame body 18 is set to become the bottom surface.

The application provides a polishing device and polishing method for an ultra-precise special-shaped light reflector, and relates to the technical field of polishing, to solve the technical problems of high cost and low processing efficiency of the polishing equipment. The method comprises the following steps: providing a reflector, the reflector comprising a triangular prism-shaped base body and a plane glass, the cross section of the base body is in the shape of an isosceles right triangle, and the plane glass is formed on the hypotenuse side of the base body; performing rough polishing on the plane glass of the reflector; placing the reflector after rough polishing in a ring polishing device, and performing fine surface shape correction on the plane glass under preset conditions; detecting whether the surface shape of the fine-corrected plane glass reaches a preset aperture, and if not, adjusting the pitch asphalt mode of the ring polishing device until the surface shape of the plane glass reaches the preset aperture. The method has low equipment cost and can be mass-produced, and has high processing efficiency.

This invention relates to an adjustable-diameter electromagnetic flowmeter, comprising a housing, moving modules, and a pushing unit. The housing houses the moving modules and the pushing unit. Each moving module has an isosceles right-angled triangle cross-section. Four moving modules are arranged in a circular array, forming a closed square channel. The right-angled sides of the four moving modules are paired and opposite each other in the vertical and horizontal directions. One side of each moving module's right-angled cross-section is adjacent to the other side of its adjacent right-angled cross-section. The four moving modules are slidably connected to the housing along the length of the hypotenuse of their cross-sections. Both ends of each moving module are fitted to the inner walls of the housing. By employing this technical solution, when using the adjustable-diameter electromagnetic flowmeter of this invention to monitor rainwater pipes, the flowmeter can achieve more accurate measurements to a certain extent.

We want to provide a protective jig for vibration-damping mounts that can be installed at a specified height without requiring height measurement. [Solution] The vibration-damping mount protective jig 100 comprises an upper jig 10 and a lower jig 20. The upper jig 10 has an upper plate portion whose upper surface contacts the lower surface of the housing 400 when mounted, a side plate portion having an elongated hole through which the threaded portion of the bolt 30 passes, and an inclined portion having a hypotenuse, provided on the inside of the smaller of the corners formed by the upper plate portion and the side plate portion. The lower jig 20 has a contact surface that contacts the upper surface of the bottom plate of the base 300 when mounted, and an inclined surface opposite to the hypotenuse. The mounted state is a state in which the vibration-damping mount protective jig 100 is mounted on the vibration-damping mount 200 for the housing 400, and is achieved by rotating the threaded portion, which passes through the elongated hole and is inserted into the bolt hole provided on the inclined surface, in the direction of fastening the threaded portion.

This utility model relates to the field of automobile tire manufacturing technology, specifically a three-drum mechanical drum protective support block capsule, including a capsule body. The upper part of the capsule body has a recessed arc surface, a ramp, and a protective edge connected in sequence. The surface of the recessed arc surface is a tire foot curve that conforms to the shape of the green tire. The protective edge is located at the end of the ramp, and the cross-sectional shape of the protective edge is triangular, with the apex hypotenuse of the triangle and the plane where the end of the ramp is located on the same plane. The lower part of the capsule body is flat. This utility model, by having a recessed arc surface, a ramp, and a protective edge connected in sequence on the upper part of the capsule body, and the recessed arc surface having a tire foot curve that conforms to the shape of the green tire, and the protective edge designed at the end of the ramp, effectively covers the edge of the support block, enabling precise positioning during tire production. This results in a smooth surface of the formed green tire without support block indentations, improving tire production efficiency and product quality, and reducing tire repair and grinding rates.

The invention discloses a multi-level combined star arrow negative Poisson's ratio structure. The structure is formed by combining a plurality of periodic unit cells in an array mode in the horizontal direction and the vertical direction, and each periodic unit cell is composed of a centrosymmetric star-shaped structure, 4n arrowhead sub-cells located at the concave position of the centrosymmetric line of the star-shaped structure and four overhanging ligaments of the arrowhead sub-cells. Geometric parameters of the center star-shaped structure include the side length L0, the included angle theta 0 and the width t0. The arrowhead subcell is formed by connecting 4n arrowheads and four overhanging ligaments along the center line. The ith arrow sub-cell structure consists of a long bevel edge Li, a tip included angle 2 alpha i, a short bevel edge included angle beta i and a width ti, and the number i of the arrow sub-cells is equal to 1,..., n. And the ligament at the concave part of the arrow at the tail end is S in length and tn in width. The multi-level combined star arrow negative Poisson's ratio structure shows good negative Poisson's ratio characteristics and energy absorption capability, and multi-level parameter changes of the unit cells and the subcells can influence the mechanical property of the whole structure.

The application provides a high-pressure water-filled branch unfolding type underwater acoustic combined angle reflector structure and belongs to the technical field of underwater target acoustic characteristics. The application solves the problem that the existing inflatable skeleton angle reflector needs to be equipped with a counterweight to cause inconvenience in use. Six joints of a six-way joint are respectively connected with six high-pressure water belts, four of which are connected with sealed heads at the other ends, one of which is connected with a switch valve at the other end, and the last one is connected with a check valve at the other end. After the six high-pressure water belts are filled with water, six column structures are formed. Each two adjacent columns are perpendicular to each other, and a fastening edge rope is connected with the top ends of each two columns to form an isosceles right triangle, two columns are right angle sides, the fastening edge rope is a hypotenuse, and a sound reflecting cloth is fixed in the isosceles right triangle to form a reflecting surface of the angle reflector. The high-pressure water belt adopted in the application can be folded or wound, has a small volume after being stored, and has a light overall structure weight, so that the application is convenient to transport and store.

To provide a trigger-type dispenser that can spray liquid over a wide area while exhibiting excellent foaming properties. [Solution] The trigger-type ejector A of the present invention is of the pressurized type and comprises an ejector body 10 having an ejection hole 11 and a foaming cylinder 20, wherein at least a portion of the liquid ejected in a conical shape from the ejection hole 11 collides with the interior near the opening of the foaming cylinder 20 and foams. Let 1 / 2 of the ejection angle θ of the liquid ejected from the ejection hole 11 be the ejection half angle θ / 2, let L1 be the distance from the ejection hole to the opening end of the foaming cylinder 20 in the liquid ejection direction X, and let HD1 be 1 / 2 of the inner diameter of the opening of the foaming cylinder 20. Assuming a right triangle with two sides, HD1 and L1, forming a right angle, and let θ1 be the angle between the hypotenuse of the right triangle and L1, then tanθ1 is greater than tanθ / 2, and the difference between tanθ1 and tanθ / 2 is greater than 0 and less than or equal to 0.18.

The invention relates to a water beam zero point positioning method and system, electronic equipment and a medium, and belongs to the technical field of water-guided laser machining.The method is applied to a circular pore plate and comprises the steps that a water beam is controlled to move in the circular pore plate, so that the water beam makes contact with the inner wall of the circular pore plate at different positions, and three edge collision points are obtained; the three edge collision points comprise a first edge collision point, a second edge collision point and a third edge collision point, and the connecting line of the first edge collision point and the second edge collision point is perpendicular to the connecting line of the second edge collision point and the third edge collision point; and calculating the midpoint coordinates of the first edge collision point and the third edge collision point as the zero point position of the water beam. The water beam is controlled to move in the circular pore plate to obtain the right triangle internally tangent to the circular pore plate, the midpoint of the hypotenuse of the right triangle is the zero point, the circular pore plate does not need accurate angle alignment during installation due to the rotational symmetry of the circular pore plate, and therefore the requirement for the precision of the installation posture is remarkably lowered.