41 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 application relates to a multi-module bidirectional variable-configuration mechanism and belongs to the technical field of spaceflight. The mechanism comprises a first module, a second module, a first hinge group and a second hinge group, the first module and the second module are equilateral right-angled triangles, the number of the first module and the second module is four, the first module and the second module are alternately connected, the lower hypotenuse of the adjacent first module and the second module is connected through the second hinge group, and the upper right-angled side of the adjacent first module and the second module is connected through the first hinge group. Through ingenious structural design and driving layout, the mechanism solves the problems of a large number of driving quantity and a complex control system of a previous complex deformation structure, can realize configuration switching through one or two drives, is lightweight and small-sized, the adaptability is increased, and the control cost is reduced.

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.

A tensioning roller support frame includes a main vertical plate, a left end plate, a right end plate, an upper panel, a lower panel, two triangular plates, a cover plate, a transverse rib plate, and a vertical rib plate. The left side of the main vertical plate is welded to the left end plate, the right side of the main vertical plate is welded to the right end plate, the upper end of the main vertical plate is welded to the upper panel, and the lower end of the main vertical plate is welded to the lower panel. One right-angled side of the triangular plate is welded to the lower panel, and the other right-angled side of the triangular plate is welded to the left end plate or the right end plate. The hypotenuse of the triangular plate is welded to the cover plate. The transverse rib plate and the vertical rib plate are welded to the inner and outer side surfaces of the main vertical plate. The main vertical plate includes a first steel plate, a second steel plate, a third steel plate, and a fourth steel plate. The lower end of the first steel plate is welded to the upper end of the second steel plate, the right end of the second steel plate is welded to the left end of the third steel plate, the upper end of the third steel plate is welded to the lower end of the fourth steel plate, and the lower end of the fourth steel plate is engaged in a groove. The present invention also provides a method for preparing a tensioning roller support frame.

The utility model discloses an inclined guide rail leveling device and belongs to the technical field of mechanical cold machining. The main body structure of the body is a cuboid, one long side of the body is a right-angle side A, and two short sides of the body are a right-angle side B and a right-angle side C respectively; an inclined rectangular notch is formed in the other long edge of the body, and a concave arc is arranged at the intersection of the bevel edge A and the bevel edge B of the rectangular notch. The device provided by the utility model has the advantages of strong versatility, capability of measuring at the same inclination angle, strong mobility, capability of measuring any position on the guide rail, capability of comprehensively measuring the levelness of the guide rail, capability of completely fitting a working surface with a working surface of the guide rail during measurement, capability of completely depending on the manufacturing precision of the device, and small measurement error.

The present invention discloses a blind search method for the hypotenuse of a right triangle in aerospace shaft-hole assembly. The rough positioning position is determined by visual information, and a search coordinate system, a robotic arm base coordinate system and an end tool coordinate system are established. The robotic arm is compliantly controlled to move to the rough positioning position, and a blind search is performed until a collision occurs, and the collision point is recorded. The robotic arm performs a light-touch movement in all four directions, and obtains the collision force in real time, and determines the position of the collision point by the change in force. Then, a corresponding blind search shaft-hole alignment strategy is set to achieve alignment of the outer circle contours of the shaft and hole plug-in, and compliant docking of the shaft and hole. The present invention realizes an efficient blind search capability for high-precision shaft-hole assembly for aerospace, has high search accuracy, especially considering the side collision phenomenon, and has good engineering applicability and universality. It is easy to implement and has high accuracy. It can be widely used in the field of on-orbit assembly of aerospace shaft holes, and greatly improves the accuracy and efficiency of shaft hole alignment during on-orbit assembly of shaft holes.

The utility model relates to the technical field of railway vehicle doors, in particular to a snow blocking structure of a railway vehicle built-in door, which comprises a carriage, a door frame arranged on the carriage, and a passenger room left door and a passenger room right door which are arranged on the door frame, the guide plate is vertically arranged on the inclined surface of the door frame, the guide plate is of a triangular structure with an arc-shaped bevel edge, the arc surface of the guide plate faces the outside of the carriage, and the guide plate is of a hollow structure. The flow guide plate is added to guide wind and snow, so that the wind and the snow are effectively prevented from entering a door slot of a railway vehicle door.

The application discloses a silk screen tension auxiliary measurement assembly, which comprises a first regulating plate and a second regulating plate which are substantially in the shape of a sheet, the first regulating plate is in the shape of an isosceles right triangle, a first handle is arranged on the first regulating plate, a clamping groove for placing a tension meter is formed in the hypotenuse of the first regulating plate, and the clamping groove is arranged at the midpoint of the hypotenuse of the first regulating plate; the second regulating plate is substantially in the shape of a rectangle, a second handle is arranged on the second regulating plate, and a first through hole for placing the tension meter is formed in the second regulating plate. The silk screen tension auxiliary measurement assembly can assist the tension meter in measuring the tension of silk screens of different specifications at fixed points, the tension meter is accurately and reliably positioned, the measurement error is small, the silk screen tension auxiliary measurement assembly is convenient to use, and the printing quality is high.

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.

To provide a fan with a ring-shaped handle, which allows the user to appreciate the content printed on the surface of the fan after use and does not require much time before use. [Solution] The ring-shaped handle fan 1 has a handle M made from resin in the shape of an isosceles triangle with a base of approximately 30 mm and a hypotenuse of 40 mm swept out by about 15 mm, and is structured so that the fan can stand on its own when the bottom of the handle base is in horizontal contact with the ground.

The present application relates to steel structure bridge, especially a kind of steel structure bridge steel box girder web plane simple approximate lofting method of material drawing. Including the following steps: S1, draw the web center line of left steel box girder and right steel box girder;S2, the material drawing web is divided into multiple web units;S3, web unit length determination;S4, according to the vertical curve parameters provided by original design, longitudinal slope and steel box girder pre-camber;S5, copy steel box girder vertical curve "curve SQ", establish coordinate system;S6, determine web geometry by vertical curve "curve S1Q1";S7, determine web unit hypotenuse length;S8, determine the maximum length of web unit;S9, determine the maximum width of a certain web unit;S10, determine the width and length of web unit material drawing steel plate.The present application is short in time, more than twice the efficiency of three-dimensional modeling again unfolding web, meet the accuracy requirement, cost is in the controllable, acceptable range, can significantly shorten the manufacturing cycle of steel structure bridge.

The utility model discloses a quality detection system for a concrete wall body. The quality detection system comprises a tester body, according to the concrete wall quality detection system, through cooperative use of the horizontal mechanism, in the use process of the device, a contact frame is attached to a detected concrete wall, whether the face, making contact with the wall, of the contact frame is flat or not is preliminarily observed to judge the flatness of the wall, and then through movable connection of a connecting rod and a vertical block, the flatness of the wall is judged; the vertical face of the square is attached to the wall, whether the bottom edge of the square coincides with the upper top edge of the contact frame or not is observed, and then whether the contact frame and the carbonization depth tester are horizontal with the wall or not is known. And a contact frame is driven to move on the surface of the carbonization depth measuring instrument, and meanwhile, a movable rod is driven to reversely extend in a connecting frame and extrude a spring, so that a detection head of the carbonization depth measuring instrument detects a wall body.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 3000 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of a sound-transmitting fabric. The column's cross-section has a roughly right-angled triangular shape with rounded vertices and an arc-shaped hypotenuse. The rounded vertices of the column's cross-section soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's roughly right-angled triangular cross-section allows for space-saving installation in a corner of a room.

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.

The invention relates to the technical field of clamping devices, and discloses a double-station synchronous clamping tool which comprises the clamping device, a workpiece placing platform and a cleaning platform, the clamping device is arranged on a rail, and parts on the workpiece placing platform can be conveyed to the cleaning platform after being clamped by the clamping device; the clamping device is provided with a first clamping jaw and a second clamping jaw which are used for clamping a part, expansion clamping jaws are arranged on the first clamping jaw and the second clamping jaw, the expansion clamping jaws can stretch into a center round hole of the part, and after the expansion clamping jaws enter the center round hole of the part, the expansion clamping jaws expand outwards to make contact with the part and then keep an expansion state. The first clamping jaw and the second clamping jaw are connected with the clamping device through the turnover block, the turnover block is in an isosceles right triangle shape, the first clamping jaw and the second clamping jaw are arranged on the two right-angle sides of the turnover block respectively, the bevel edge of the turnover block is connected with the clamping device, and the connecting line between the midpoint of the bevel edge and the right angle is the rotating axis of the turnover block. The positions of the first clamping jaw and the second clamping jaw are exchanged.

The invention relates to the field of storage boxes, in particular to a maintenance product storage box convenient to take and place, which comprises a bottom plate, a storage box, a sliding block and the like, the bottom plate is connected with a storage box; the front side face and the rear side face of the bottom plate are each provided with a sliding groove. Two sliding blocks are slidably connected into each sliding groove in a damping mode. The storage box is supported and fixed in the storage cabinet through the bottom plate, the spring telescopic rods and the two-way spring rods, when a ship shakes, the storage box does not move in the storage cabinet and collides with the inner wall of the storage cabinet, meanwhile, articles in the storage box are fixed by the telescopic fixing belts, and a buffer protection layer is arranged in the storage box, so that the storage box is protected. A spring telescopic rod and a two-way spring rod are combined to be in a right triangle state, extrusion force is formed in the bevel edge direction, the storage box is fixed to a right-angle space formed by a table top and a vertical wall face, and the influence of displacement caused by ship shaking of the storage box is reduced; and the stability of the computer desk placed on a desktop is improved.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 3000 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of sound-transmitting fabric. The column has a cross-sectional shape that is approximately a right-angled triangle with rounded vertices and an arc-shaped hypotenuse. The rounded vertices of the column's cross-sectional shape soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's cross-sectional shape is approximately a right-angled triangle, allowing it to be installed in a corner of a room in a space-saving manner.

As shown in the reference perspective view showing the usage state, this product is an acoustic adjustment component that is installed freestanding on the floor of a room and adjusts the room acoustics by absorbing sound waves. The product's approximate dimensions in the front view are approximately 1800 mm in height. The product comprises a column and legs. The column has an internal sound-absorbing section made of materials such as PET nonwoven fabric, glass wool, and urethane, and the sound-absorbing section is covered with a surface layer made of sound-transmitting fabric. The column's cross-section has a roughly right-angled triangular shape with rounded vertices and an arc-shaped hypotenuse. The rounded vertices of the column's cross-section soften shadows, giving the product a gentle impression in the space in which it is installed and helping the product blend into the space. The column's roughly right-angled triangular cross-section allows for space-saving installation in a corner of a room.

A power module and an electronic device having the same are provided. The power module includes a power frame and multiple power chips. The power frame includes multiple islands. The islands include a die bond portion, a connection portion, a bent portion, a terrace portion, and a power pin, which are connected in this order in the width direction of the power module. The die bond portion, the connection portion, the bent portion, the terrace portion, and the power pin are integrally structured. The connection portion includes at least one oblique side, and the adjacent hypotenuses of two connection portions of adjacent islands extend in approximately the same direction. The bent portion is disposed at an angle relative to the terrace portion. The terrace portion of at least a central island among the multiple islands includes a chamfered portion on the side away from the power pin, and the orthogonal projection of the edge of the chamfered terrace portion of one island onto the plane in which the multiple islands are located and the orthogonal projection of the edge of the bent portion of the other adjacent island onto the plane in which the multiple islands are located extend in approximately the same direction. The multiple power chips are disposed on the die bond portions of the multiple islands.

A container ship measuring guide rail and coning data matching auxiliary device is provided with a base, the base comprises a bottom plate and baffles, the bottom plate is in the shape of a rectangle lacking one corner and forms a pentagon with four right-angle sides and a bevel edge, and the baffles are arranged on the edges of the three adjacent right-angle sides and the bevel edge. Button magnets are embedded in the baffle plates located on the bevel edge and the right-angle edge adjacent to the bevel edge. The reflection target is fixed on the base through a supporting round rod, a cylindrical sleeve ball threaded base is fixed at the center of the lower surface of the bottom plate, a steering fixing ball is fixed at the top of the operating rod, the steering fixing ball is embedded in the cylindrical sleeve ball threaded base, and the steering fixing ball can freely rotate in the cylindrical sleeve ball threaded base; the steering fixing ball is movably connected with the cylindrical sleeve ball threaded base. The device is convenient to use, wide in applicability, capable of being repeatedly used, more visual and reliable in cooperation with measurement construction and good in use effect, the construction efficiency can be greatly improved, the precision in the construction process is well improved, and the construction period is well shortened.

The application relates to a cutting method for predicting and adjusting a wire bow and a wire cutting machine, and relates to the technical field of finishing equipment.The cutting method for predicting and adjusting the wire bow can predict the wire bow arc length and the wire bow arc length change amount through the physical parameter change of a tension mechanism by establishing a functional relationship between the wire bow arc length or the wire bow arc length change amount and the physical parameters of the tension mechanism, and then can adjust the feeding speed or the wire speed, so that the wire bow arc length is reduced or increased to achieve the best cutting condition.Therefore, the detection of the wire parameters in the cutting area is no longer time-consuming and laborious, and the wire bow arc length and the wire bow arc length change amount obtained are more accurate because the calculation method of the approximate equivalent to the hypotenuse of a triangle is not used, but the calculation is based on the geometric model of the tension mechanism.

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.