Patents
Literature
11results about "Circular curve drawing instruments" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Drawing measuring device with angle measuring structure
PendingCN122185747ACircular curve drawing instrumentsStraightedges
The application discloses a drawing measuring device with an angle measuring structure and belongs to the technical field of drawing measuring tools, mainly comprising a fixed ruler plate, one fixed page plate is hingedly connected to each end of the inner side of the fixed ruler plate, a first folding ruler plate is fixed to the end of the fixed page plate away from the fixed ruler plate, a second folding ruler plate is fixed to the end of the fixed page plate away from the fixed ruler plate, and a fixed foot rod is clamped to the end of the first folding ruler plate away from the fixed ruler plate; the first folding ruler plate, the fixed ruler plate, the second folding ruler plate, the second bevel gear, the first bevel gear, the screw rod, the screw rod matching cavity, the contraction supporting rod, the ruler cylinder, the angle indicating disc, the radian measuring ruler, the fixed foot rod and the drawing pencil are arranged, multi-functional integrated design is realized, straight line angle and radian measurement and drawing can be realized without frequent switching of tools, and the drawing efficiency is improved.
Owner:HUBEI BOSHENG TECHNOLOGY CO LTD
A writing protractor with a regulating calibration mechanism
Owner:SHANTOU ZHENTAI IND CO LTD
A compass
ActiveCN224296902UCircular curve drawing instrumentsPhysical medicine and rehabilitationPhysical therapy
The application discloses a compass, which comprises a compass base, a first supporting leg and a second supporting leg, the head of the first supporting leg and the head of the second supporting leg are rotationally connected to form a joint end, the joint end is rotationally installed in the compass base, a locking rod is installed on the first supporting leg, the locking rod is provided with a pressing part which is movably connected with the joint end, when the locking rod is in a locking position, the pressing part abuts against the joint end to rotationally lock the head of the first supporting leg and the head of the second supporting leg, when the locking rod is forced to move to an unlocking position, the locking rod drives the pressing part to move to reduce the acting force on the joint end, so that the head of the first supporting leg and the head of the second supporting leg are rotationally unlocked, a user only needs to exert a certain force on the locking rod, and then the unlocking operation can be quickly completed, without the need of complicated adjusting steps, additional parts are reduced, and the structure of the whole compass is more compact.
Owner:DELI GROUP CO LTD
A compass with a pointer dial
ActiveCN224375200UCircular curve drawing instrumentsMechanical measuring arrangementsComputer hardwareMechanical engineering
This utility model relates to the field of compasses and provides a compass with a pointer dial. It includes a compass head, pins and lead feet rotatably mounted on the compass head, connected by a transmission mechanism that allows the pins and lead feet to open and close opposite to each other. Each pin or lead foot has a connecting portion with a first tooth. The compass head has a first rotating shaft with a second tooth, which meshes with each other. The compass head also has a pointer dial with graduations and a first notch. A pointer slide is mounted on the first rotating shaft, with its tip extending through the first notch to the outer surface of the pointer dial. The tip of the pointer slide points to the graduation value of the compass opening. The compass can read the graduations through the pointer dial and pointer slide without the need for a ruler, improving the efficiency of drawing circles and solving the technical problem of low efficiency in drawing circles with a compass.
Owner:QUANZHOU WENBAO LIGHT IND CO LTD
A pen type compass
ActiveCN224296901UPropelling pencilsCircular curve drawing instrumentsControl theoryMechanical engineering
The application discloses a pen type compass, which comprises a compass seat, a pen barrel and a positioning rod, the pen barrel is provided with an engaging part matched with the positioning rod, the pen barrel comprises a connecting rod and a pen barrel, the pen barrel is slidably connected with the connecting rod to realize telescopic extension, when the pen barrel is slidably extended relative to the connecting rod, the engaging part is extended to be matched with the positioning rod, the positioning rod is connected with the engaging part through rotation to realize writing function, a lock catch is arranged between the connecting rod and the pen barrel, when the positioning rod is rotated to be separated from the engaging part, the pen barrel can be slidably retracted relative to the connecting rod and locked through the lock catch to realize compass function, the user can realize switching between the writing function and the compass function through simple sliding and rotating operation, the lock catch is additionally arranged to ensure the stability of the pen barrel when the compass function is used, and the use stability of the overall structure is improved.
Owner:DELI GROUP CO LTD
Multi-functional copying gauge
ActiveCN224375199UImprove convenienceImprove efficiencyCircular curve drawing instrumentsOther workshop equipmentSoftware engineeringMechanical engineering
The utility model discloses a multifunctional copying gauge, which comprises a first supporting arm, a second supporting arm, a first locking device, a base and a line drawing pen. The multifunctional copying gauge has a copying use state and a compass use state. In the copying use state, the supporting center is abutted on a surface to be shaped, and the nib of the line drawing pen passes through the avoiding hole. At this time, the supporting center moves along the surface of the surface to be shaped, and the nib of the line drawing pen can draw the contour shape of the surface to be shaped synchronously. The angle of the line drawing pen can be adjusted to switch to the compass use state. In this state, the supporting center is abutted on a plane to be drawn, and the nib of the line drawing pen can draw a circular track on the plane to be drawn with the supporting center as the center. The multifunctional copying gauge integrates the functions of the copying gauge and the compass into one device, which greatly improves the work convenience and efficiency of the construction personnel.
Owner:SAAME TOOLS SHANGHAI IMPORT & EXPORT CO LTD
A special drawing compass structure
This utility model belongs to the field of drawing aids, specifically a dedicated drawing compass structure, including a mounting base. A support leg is fixedly mounted on the bottom of the mounting base, and a first steering seat is fixedly mounted on one side of the mounting base. An extension frame is movably mounted inside the first steering seat. A through slot is formed in the middle of the front of the extension frame, and a scale is provided on one side of the top of the extension frame. A cross slider is movably mounted inside the extension frame. Through the structural design of the first steering seat, extension frame, scale, cross slider, second steering seat, extension cylinder, extension rod, and pen holder, the flexibility of the compass is increased. This allows for adjustment of the distance between the support leg and the pen holder by moving the cross slider inside the extension frame, thereby increasing the range of drawing diameters. Simultaneously, the multi-stage steering and extension allow the compass to adapt to different usage needs, solving the problem of insufficient flexibility in traditional compasses.
Owner:NINGBO AMES STATIONERY CO LTD
Digital compasses
ActiveCN224296900UMechanical diameter measurementsCircular curve drawing instrumentsGear driveGear wheel
The application discloses a digital compasses, including compass seat, the compass seat on the rotating installation has first support leg and second support leg, first support leg on the first gear is equipped with, the second support leg is provided with second gear, the first gear is engaged with second gear, the compass seat is installed with dial and pointer, the pointer is equipped with the rotating shaft which is rotatably connected with dial, the pointer is connected with third gear through rotating shaft, transmission gear set is equipped between the first gear and third gear, when the first support leg and the second support leg relatively rotate, the first gear drives third gear to rotate through transmission gear set, and third gear drives pointer to rotate relative to dial to indicate numerical value.
Owner:DELI GROUP CO LTD
Compass for easy observation of radius degree
ActiveCN224296903UCompasses with pivoted armsCircular curve drawing instrumentsMagnifying glassMechanical engineering
The utility model relates to the technical field of drawing tools, concretely is compass convenient for observing radius degree, including support leg and movable leg, the upper portion one side of movable leg is installed with the scale board of arc shape with scale line, the support leg is close to the scale board department and is opened with scale board sliding hole, the end of scale board passes through scale board sliding hole, the support leg is close to the scale board department and is installed with magnifying glass, the bottom of support leg is installed with fixed needle, the bottom of movable leg is installed with lead core, the bottom outside of support leg is installed with protection cover. In the compass convenient for observing radius degree, the arc scale board of movable leg upper portion one side is installed with scale line, and the end passes through the scale board sliding hole of support leg, and is installed with the magnifying glass on the support leg close to the scale board department, when adjusting the radius of compass, the user can clearly observe the scale on the scale board through the magnifying glass directly, need not help additional auxiliary tool, greatly simplified the observation and the determination process of radius degree.
Owner:WENZHOU KAIBO STATIONERY CO LTD
Drawing compass
The utility model discloses a compass for drawing, including arc drawing part and center of circle positioning part, the arc drawing part includes first support foot, first nut, metal spring piece and first adjusting screw, and the center of circle positioning part includes second support foot, second adjusting screw, clamp, contact pin and second nut. The utility model discloses a first adjusting screw, and the replacement of pencil or ink pipe is more easily realized, plays the position adjustment and clamping effect, and it is more intuitive, accurate and fast to operate, and simultaneously, through second adjusting screw, the relative stability of arc drawing part and center of circle positioning part position can be made, and the stability of drawing process radius is improved.
Owner:CHANGSHA GANCHUANG DESIGN CO LTD
Device for drawing circles, arcs of circles and measuring lengths on classroom boards or any other magnetic surface.
Device for drawing circles or arcs of circles and measuring lengths on classroom boards or other magnetic surfaces. The invention relates to a device for accurately drawing circles or arcs of circles of selected radii on magnetic surfaces with one hand, and for measuring lengths. The device consists of a magnet (1) into which a peg (2) is screwed, a graduated tape (3) with a hole (4) at the 0 mark, the center of rotation of the tape (3) around the peg (2) at the center of the magnet (1), and a piece (5) that serves as a guide for the writing tool, which can be moved and locked by the user to select the radius of the circles or arcs to be drawn. After selecting the radius, the user inserts their writing tool into the most suitable hole of the two.The user rotates the ribbon (3), stretched around the magnet (1), while keeping the writing tool pressed against the board, to form the desired arc or circle. The graduations on the ribbon (3) also allow the user to measure lengths. The ribbon (3) has two sides graduated with different metric systems to meet the needs of a wide range of users. The device according to the invention is particularly intended for use with magnetic boards used by teachers or anyone with a magnetic surface.
Owner:LE GUEN PIERRE LOUIS-MARIE