CN112829498A - Special drawing device of higher mathematics - Google Patents
Special drawing device of higher mathematics Download PDFInfo
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- CN112829498A CN112829498A CN201911168543.3A CN201911168543A CN112829498A CN 112829498 A CN112829498 A CN 112829498A CN 201911168543 A CN201911168543 A CN 201911168543A CN 112829498 A CN112829498 A CN 112829498A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
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- B43L13/205—Stencils for drawing figures, objects geometrical figures
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Abstract
The invention belongs to the technical field of drawing devices, and particularly discloses a special drawing device for advanced mathematics, which comprises a device main body, a square plate, a curve plate and a first cylinder body, wherein the front surface of the device main body is fixedly connected with the square plate, the peripheral outer wall of the square plate is connected with the peripheral outer wall of the device main body, the bottom end of the square plate is fixedly connected with a diameter graduated scale, the peripheral outer wall of the diameter graduated scale is connected with the front peripheral outer wall of the square plate, the bottom end of the diameter graduated scale is fixedly connected with a diameter groove, the first cylinder body and the second cylinder body on the diameter groove respectively move towards two ends of the diameter groove until the distance between the first cylinder body and the second cylinder body is equal to the radius, then the first cylinder body is extruded to enable a sucker at the bottom end of the first cylinder body to be tightly attached to a blackboard, then the first cylinder body is taken as a fulcrum, the second cylinder body is rotated to enable, from drawing the circular of regulation size, strengthened the accuracy of figure, promoted teaching efficiency.
Description
Technical Field
The invention belongs to the technical field of drawing devices, and particularly relates to a special drawing device for advanced mathematics.
Background
Higher mathematics refers to that the objects and methods of mathematics are relatively complicated and more complex than elementary mathematics, and more broadly, mathematics other than elementary mathematics are higher mathematics, and the elementary and logical elementary and more deep algebra and geometry of middle school are also called as intermediate mathematics, and the intermediate mathematics is used as the transition between elementary and higher mathematics of the middle and primary school and the higher mathematics of the university, and generally, the higher mathematics is considered as a basic subject formed by micro-integration, deeper algebra and geometry and the cross content among the elementary and higher mathematics, and the main contents include: limit, calculus, space analytic geometry and linear algebra, series and ordinary differential equation.
At present, the single function can appear in the special drawing device of higher mathematics of current, complex operation's condition, the teacher need get the coordinate point earlier usually when drawing the curve on the blackboard, then couple together each coordinate point with the curve, the curve of drawing is not pleasing to the eye, and the circle of drawing and curve consume a large amount of time usually, need just can accomplish the drawing of circle and curve with the help of external instrument simultaneously, have certain use limitation.
Therefore, how to design a special drawing device for advanced mathematics becomes a problem to be solved at present.
Disclosure of Invention
The invention aims to: in order to solve the problems of single function and complex operation, a special drawing device for advanced mathematics is provided.
The technical scheme adopted by the invention is as follows: a drawing device special for advanced mathematics comprises a device main body, a right-angle plate, a curve plate and a first cylinder body, wherein the right-angle plate is fixedly connected to the front surface of the device main body, the peripheral outer wall of the right-angle plate is connected with the front peripheral outer wall of the device main body, a limiting hole is fixedly connected to the other side of the right-angle plate, the peripheral outer wall of the limiting hole is connected with the inner wall of the other side of the right-angle plate, the curve plate is fixedly connected to one side of the right-angle plate, the peripheral outer wall of the other side of the curve plate is connected with the peripheral outer wall of one side of the right-angle plate, an X-axis coordinate auxiliary line is fixedly connected to the middle inner wall of the curve plate, a curve groove is fixedly connected to the front surface of the curve plate, a right-angle annular groove is fixedly connected to the middle of one side of the curve plate, the outer peripheral wall of the annular groove is connected with the inner side wall in the middle of one side of the rectangular plate, the top end of the rectangular plate is fixedly connected with a diameter dividing ruler, the outer peripheral wall of the back surface of the diameter dividing ruler is connected with the outer peripheral wall of the front surface of the top end of the rectangular plate, the bottom end of the diameter dividing ruler is fixedly connected with a diameter groove, the outer peripheral wall of the top end of the diameter groove is connected with the outer peripheral wall of the bottom end of the diameter dividing ruler, the inner wall of the other side of the diameter groove is movably connected with a first cylinder, the outer peripheral wall of the first cylinder is connected with the inner side wall of the other side of the diameter groove, the inner wall of one side of the diameter groove is movably connected with a second cylinder, and the;
a pointer is fixedly connected to one side of the first cylinder, the peripheral outer wall of the other side of the pointer is connected with the peripheral outer wall of one side of the first cylinder, a connecting rod is fixedly connected to the bottom end of the first cylinder, the peripheral outer wall of the top end of the connecting rod is connected with the peripheral outer wall of the bottom end of the first cylinder, a limiting ring is fixedly connected to the periphery of the bottom of the connecting rod, and the inner side wall of the limiting ring is connected with the peripheral outer wall of the bottom of the connecting rod;
a chalk groove is fixedly connected inside the second column body, the peripheral outer wall of the chalk groove is connected with the inner side inner wall of the second column body, an extrusion rod is movably connected to one side of the chalk groove, the peripheral outer wall of the other side of the extrusion rod is connected with the inner side inner wall of one side of the chalk groove, a fine adjustment nut is movably connected to one side of the extrusion rod, the peripheral outer wall of the other side of the fine adjustment nut is connected with the peripheral outer wall of one side of the extrusion rod, chalk is movably connected to the inner wall of the chalk groove, and the peripheral outer wall of the top of the chalk is connected with the inner side inner wall of the chalk groove;
the two ends of the limiting ring are movably connected with sliding chutes, the inner side inner walls of the sliding chutes are connected with the outer peripheral walls of the two ends of the limiting ring, the top ends of the sliding chutes are fixedly connected with baffle plates, and the outer peripheral walls of the baffle plates are connected with the inner side inner walls of the sliding chutes;
the middle of the top end of the right-angle plate is fixedly connected with a fixed block, and the peripheral outer wall of the bottom end of the fixed block is connected with the peripheral outer wall of the top end of the right-angle plate;
the inner periphery of the annular groove is fixedly connected with an angle mark, the outer peripheral wall of the angle mark is connected with the outer inner peripheral wall of the annular groove, the back of the angle mark is fixedly connected with a transparent plate, the outer peripheral wall of the front of the transparent plate is connected with the outer peripheral wall of the back of the angle mark, the middle of the transparent plate is fixedly connected with a linear groove, and the outer peripheral wall of the linear groove is connected with the inner side wall of the middle of the transparent plate.
Preferably, the bottom end of the rectangular plate is fixedly connected with a linear scale, and the peripheral outer wall of the top end of the linear scale is connected with the peripheral outer wall of the bottom end of the rectangular plate.
Preferably, the middle of the right-angle plate is fixedly connected with a handle, and the peripheral outer wall of the bottom end of the handle is connected with the peripheral outer wall of the top end of the right-angle plate.
Preferably, the bottom end of the first column body is connected with a sucker in a nested mode, and the outer peripheral wall of the top of the sucker is connected with the inner wall of the inner side of the bottom end of the first column body.
Preferably, the inside fixedly connected with small-size magnet in both ends of rectangular plate, the peripheral outer wall of small-size magnet links to each other with the inboard inner wall in both ends of rectangular plate.
Preferably, the inner wall of the limiting hole is fixedly connected with an annular sleeve, and the peripheral outer wall of the annular sleeve is connected with the inner side inner wall of the limiting hole.
Preferably, the bottom end of the interior of the first column body is fixedly connected with a cushion body, and the peripheral outer wall of the cushion body is connected with the inner wall of the bottom end of the first column body.
Preferably, the curve plate has one curve plate, and the curve plate consists of a middle X-axis coordinate auxiliary line and a front curve groove.
Preferably, one of the annular grooves, the angle indicator, the transparent plate and the linear groove form an angle drawing mechanism together.
Preferably, one diameter groove is formed, and the diameter groove, the first cylinder, the second cylinder, the diameter dividing ruler, the pointer and the chalk form a precise circle drawing mechanism together.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, a parallel X-axis is drawn on the blackboard by the curve board, then the X-axis coordinate auxiliary line is aligned with the X-axis on the blackboard, then a curve is drawn along the curve groove by chalk, if the curve to be drawn is longer, after the curve is drawn, the head end of the curve groove is connected with the tail end of the previous curve, then the second curve is drawn along the curve groove, and the drawn curve is accurate and beautiful, so that the drawing of teachers is accelerated.
2. According to the angle drawing mechanism, a teacher can conveniently overlap the straight line groove and the parallel straight line through the transparent plate, then a required angle is selected through the angle mark, a mark is placed on the annular groove corresponding to the angle by using chalk, and then the head end of the straight line is connected with the mark point, so that an accurate angle can be drawn, the understanding of the student on the graph is enhanced, and the drawing by the teacher is facilitated.
3. According to the invention, the accurate circle drawing mechanism is used for adjusting the distance between the first cylinder and the second cylinder to reach the equal radius, then the first cylinder is extruded to enable the sucker at the bottom end of the first cylinder to be attached to the blackboard, then the first cylinder is used as a fulcrum, and the second cylinder is rotated to enable chalk at the bottom end of the second cylinder to do circular motion by taking the first cylinder as a circle center, so that the circle with a specified size is drawn, the accuracy of the graph is enhanced, and the teaching efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a first column of the present invention;
FIG. 3 is a schematic view of a second cylinder of the present invention;
FIG. 4 is a side cross-sectional view of a first cylinder of the present invention;
FIG. 5 is a side view of a square of the present invention;
FIG. 6 is an enlarged view A of the present invention.
The labels in the figure are: 1. the device comprises a device body, 2, a right-angle plate, 3, a curve plate, 4, a first cylinder, 5, a limiting hole, 6, a linear scale, 7, a handle, 8, a diameter scale, 9, a curve groove, 10, a fixing block, 11, a second cylinder, 12, a diameter groove, 13, an annular groove, 14, a connecting rod, 15, a limiting ring, 16, a sucker, 17, a pointer, 18, chalk, 19, a fine adjustment nut, 20, an extrusion rod, 21, a chalk groove, 22, a sliding groove, 23, a baffle, 24, a small magnet, 25, an X-axis coordinate auxiliary line, 26, an angle mark, 27, a linear groove, 28, a transparent plate, 29, an annular sleeve, 30 and a cushion body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-6, the present invention provides a technical solution: a special drawing device for advanced mathematics comprises a device main body 1, a right-angle plate 2, a curve plate 3 and a first cylinder 4, wherein the front of the device main body 1 is fixedly connected with the right-angle plate 2, the peripheral outer wall of the right-angle plate 2 is connected with the front peripheral outer wall of the device main body 1, the other side of the right-angle plate 2 is fixedly connected with a limiting hole 5, the peripheral outer wall of the limiting hole 5 is connected with the inner wall of the other side of the right-angle plate 2, one side of the right-angle plate 2 is fixedly connected with the curve plate 3, the other side peripheral outer wall of the curve plate 3 is connected with the peripheral outer wall of one side of the right-angle plate 2, the middle of the curve plate 3 is fixedly connected with an X-axis coordinate auxiliary line 25, the peripheral outer wall of the X-axis coordinate auxiliary line 25 is connected with the inner wall of the middle of the curve plate 3, the, the middle of one side of the rectangular plate 2 is fixedly connected with an annular groove 13, the peripheral outer wall of the annular groove 13 is connected with the inner side inner wall of the middle of one side of the rectangular plate 2, the top end of the rectangular plate 2 is fixedly connected with a diameter dividing ruler 8, the back peripheral outer wall of the diameter dividing ruler 8 is connected with the top front peripheral outer wall of the rectangular plate 2, the bottom end of the diameter dividing ruler 8 is fixedly connected with a diameter groove 12, the top peripheral outer wall of the diameter groove 12 is connected with the bottom peripheral outer wall of the diameter dividing ruler 8, the other side inner wall of the diameter groove 12 is movably connected with a first cylinder 4, the peripheral outer wall of the first cylinder 4 is connected with the other side inner wall of the diameter groove 12, one side inner wall of the diameter groove 12 is movably connected with a second cylinder 11, and the peripheral outer wall;
a pointer 17 is fixedly connected to one side of the first cylinder 4, the peripheral outer wall of the other side of the pointer 17 is connected with the peripheral outer wall of one side of the first cylinder 4, a connecting rod 14 is fixedly connected to the bottom end of the first cylinder 4, the peripheral outer wall of the top end of the connecting rod 14 is connected with the peripheral outer wall of the bottom end of the first cylinder 4, a limiting ring 15 is fixedly connected to the periphery of the bottom of the connecting rod 14, and the inner side wall of the limiting ring 15 is connected with the peripheral outer wall of the bottom of the connecting;
a chalk groove 21 is fixedly connected inside the second column body 11, the peripheral outer wall of the chalk groove 21 is connected with the inner side inner wall of the second column body 11, one side of the chalk groove 21 is movably connected with an extrusion rod 20, the other side peripheral outer wall of the extrusion rod 20 is connected with the inner side inner wall of one side of the chalk groove 21, one side of the extrusion rod 20 is movably connected with a fine adjustment nut 19, the other side peripheral outer wall of the fine adjustment nut 19 is connected with the one side peripheral outer wall of the extrusion rod 20, the inner wall of the chalk groove 21 is movably connected with chalk 18, and the top peripheral outer wall of the chalk 18 is connected with the inner side inner wall of the chalk groove 21;
the two ends of the limiting ring 15 are movably connected with sliding chutes 22, the inner side inner walls of the sliding chutes 22 are connected with the outer peripheral walls of the two ends of the limiting ring 15, the top ends of the sliding chutes 22 are fixedly connected with baffle plates 23, and the outer peripheral walls of the baffle plates 23 are connected with the inner side inner walls of the sliding chutes 22;
the middle of the top end of the right-angle plate 2 is fixedly connected with a fixed block 10, and the peripheral outer wall of the bottom end of the fixed block 10 is connected with the peripheral outer wall of the top end of the right-angle plate 2;
the inner periphery of the annular groove 13 is fixedly connected with an angle indicator 26, the outer peripheral wall of the angle indicator 26 is connected with the outer inner peripheral wall of the annular groove 13, the back surface of the angle indicator 26 is fixedly connected with a transparent plate 28, the outer peripheral wall of the front surface of the transparent plate 28 is connected with the outer peripheral wall of the back surface of the angle indicator 26, the middle of the transparent plate 28 is fixedly connected with a linear groove 27, and the outer peripheral wall of the linear groove 27 is connected with the inner side wall of the middle of the transparent plate 28.
Preferably, the bottom fixedly connected with straight-line scale 6 of square 2, the peripheral outer wall in top of straight-line scale 6 links to each other with the peripheral outer wall in bottom of square 2, and the straight line is the teacher and draws indispensable partly, with 2 laminating blackboards of square, then draws along straight-line scale 6 with chalk 18 to can draw the straight line out, the follow-up mr of being convenient for draws coordinate axis, draws the curve.
Preferably, the middle fixedly connected with hand (hold) 7 of L-square 2, the peripheral outer wall in bottom of hand (hold) 7 links to each other with the peripheral outer wall in top of L-square 2, it is inconvenient when taking for the square for current teaching, in order to avoid this condition, fix hand (hold) 7 in the middle of L-square 2's front, then the teacher can tightly hold hand (hold) 7 with the hand, and rotate position and the angle of the laminating blackboard that hand (hold) 7 adjusted L-square 2 with this, thereby drawing for follow-up teacher provides convenience.
Preferably, the bottom end of the first cylinder 4 is connected with the sucking disc 16 in an embedded mode, the peripheral outer wall of the top of the sucking disc 16 is connected with the inner wall of the bottom end of the first cylinder 4, the first cylinder 4 can slide and is connected with an unstable situation when being attached to a blackboard generally, in order to avoid the situation, the sucking disc 16 is fixed on the bottom surface layer of the first cylinder 4, then the first cylinder 4 is extruded forcefully, the sucking disc 16 is extruded, the sucking disc 16 adsorbs the blackboard, and therefore stability between the first cylinder 4 and the blackboard is enhanced.
Preferably, the inside fixedly connected with small-size magnet 24 in both ends of right-angle plate 2, small-size magnet 24's peripheral outer wall links to each other with the inboard inner wall in both ends of right-angle plate 2, when using right-angle plate 2 to draw, can cause right-angle plate 2 to take place the shake slope because the hand is trembled usually, influence the accuracy of drawing, in order to avoid this kind of condition, inlay small-size magnet 24 in the four corners of right-angle plate 2, and parallel with 4 bottom surfaces of right-angle plate, then closely laminate right-angle plate 2 and blackboard, thereby through the suction of small-size magnet 24 to the blackboard, can promote the stability of right-angle plate 2 on the blackboard, thereby reduce the teacher and stabilize the required power of right-angle plate 2, make the teacher more labors.
Preferably, the inner wall fixedly connected with annular cover 29 of spacing hole 5, the peripheral outer wall of annular cover 29 links to each other with the inboard inner wall of spacing hole 5, right-angle plate 2 is when placing on the desk, can cause dropping of right-angle plate 2 because of accident usually, fall into bad, in order to avoid this kind of condition, annular cover 29 links to each other as an organic whole with spacing hole 5, and set up the edge at right-angle plate 2, then with spacing hole 5 cover cylinder on the desktop, thereby make the cylinder on the desktop carry on spacingly to right-angle plate 2 through spacing hole 5, avoid right-angle plate 2 unexpected dropping, annular cover 29 adopts the colloid material simultaneously, the effectual friction collision that has reduced between desktop cylinder and the right-angle plate 2, play certain guard action.
Preferably, the inside bottom fixedly connected with of first cylinder 4 fills up body 30, the peripheral outer wall that fills up body 30 links to each other with the inboard inner wall in bottom of first cylinder 4, first cylinder 4 is when drawing accurate circular, can cause the position of first cylinder 4 to change easily because the friction between first cylinder 4 and right-angle plate 2 is too little usually, it is difficult to keep an accurate position, in order to avoid this kind of condition, fix the bottom surface top layer at first cylinder 4 with filling up body 30, wherein because filling up body 30 adopts the great rubber of frictional resistance to make, so fill up body 30 can produce great frictional resistance with right-angle plate 2 that plastics were made, thereby the effectual non-artificial gliding phenomenon of first cylinder 4 emergence has been avoided, the stability of first cylinder 4 has been promoted.
Preferably, the curve plate 3 is provided with one curve plate which is composed of a middle X-axis coordinate auxiliary line 25 and a front curve groove 9, when a teacher draws an XY-axis curve on a blackboard, the teacher usually needs to take coordinate points first, then connect the coordinate points by curves, the method consumes much time, and the drawn curve is not beautiful, in order to avoid the situation, the curve plate 3 is arranged in the right-angle plate 2, then a parallel X-axis is drawn on the blackboard, then the X-axis coordinate auxiliary line 25 is aligned with the X-axis on the blackboard, then a chalk 18 is used for drawing the curve along the curve groove 9, if the curve is longer, after one curve is drawn, the head end of the curve groove 9 on the curve plate 3 is connected with the tail end of the previous curve, then the second curve is drawn along the curve groove 9, therefore, the curve can be drawn simply and quickly through the curve plate 3, and the curve is accurate and beautiful.
Preferably, the annular groove 13 is provided with an angle drawing mechanism which is formed by the annular groove 13, the angle mark 26, the transparent plate 28 and the linear groove 27, when a teacher draws intersecting lines with different angles, the teacher generally makes a rough judgment according to self teaching experiences, and then draws angles, so that the students can understand graphs, in order to avoid the situation, firstly, a straight line is drawn on the blackboard, then the right-angle plate 2 is attached to the blackboard, the teacher can conveniently overlap the linear groove 27 with the straight line through the transparent plate 28, then a desired angle is selected through the angle mark 26, then a mark is placed on the annular groove 13 corresponding to the angle by using chalk 18, then the head end of the straight line is connected with the mark point, so that a precise angle can be drawn, the understanding of the students to the graphs is enhanced, and when the teacher draws a circle, the teacher can draw the chalk 18 along the annular groove 13 to be round, the teacher is convenient to draw.
Preferably, the diameter groove 12 is provided with a mechanism for drawing a precise circle, which is composed of the first cylinder 4, the second cylinder 11, the diameter graduated scale 8, the pointer 17 and the chalk 18, so that a teacher wants to draw a circle with a determined diameter accurately in the drawing process, which is difficult, time-consuming and wastes classroom time, in order to avoid the situation, the first cylinder 4 and the second cylinder 11 are respectively moved towards two ends of the diameter groove 12, and when moving, the pointer 17 on the first cylinder 14 and the second cylinder 11 are always aligned with the diameter graduated scale 8 until the distance between the first cylinder 14 and the second cylinder 11 is equal to a radius, the movement is stopped, then the first cylinder 4 is pressed, so that the suction cup 16 at the bottom end of the first cylinder 4 is tightly attached to the blackboard, then the first cylinder 4 is used as a fulcrum, the second cylinder 11 is rotated, so that the chalk 18 at the bottom end of the second cylinder 11 makes a circular motion on the blackboard with the first cylinder 4 as a center, from drawing the circular of regulation size, in the middle of the process of drawing the circle, first cylinder 4 original place is motionless, and second cylinder 11 and right angle board 2 remain relative quiescent condition throughout to guarantee that the distance between first cylinder 4 and the second cylinder 11 can not change, consequently can draw accurate circle through the accurate circle mechanism of above-mentioned drawing, strengthened the accuracy of figure, promoted teaching efficiency.
The working principle is as follows: firstly, drawing a straight line through a straight line graduated scale 6, fixedly connecting the bottom end of a square plate 2 with the straight line graduated scale 6, connecting the peripheral outer wall of the top end of the straight line graduated scale 6 with the peripheral outer wall of the bottom end of the square plate 2, wherein the straight line is an indispensable part for teachers to draw, attaching the square plate 2 to a blackboard, and then drawing along the straight line graduated scale 6 by using a chalk 18, so that the straight line can be drawn, and the follow-up teachers can draw coordinate axes and curves conveniently;
then, the control force on the right-angle plate 2 is enhanced through the handle 7, the handle 7 is fixedly connected in the middle of the right-angle plate 2, the outer wall of the periphery of the bottom end of the handle 7 is connected with the outer wall of the periphery of the top end of the right-angle plate 2, the existing square for teaching is inconvenient to take, in order to avoid the situation, the handle 7 is fixed in the middle of the front face of the right-angle plate 2, a teacher can tightly hold the handle 7 with hands, and the position and the angle of the attached blackboard of the right-angle plate 2 are adjusted by rotating the handle 7, so that convenience is brought to drawing of the subsequent teacher;
then, draw the curve through the curve board 3, the curve board 3 has one, it is made up of middle X axle coordinate auxiliary line 25 and positive curve slot 9 together, when the teacher draws XY axle curve on the blackboard, usually need to pick up the coordinate point first, then connect every coordinate point with the curve, this kind of method consumes more time, and the curve drawn is not esthetic, in order to avoid this kind of situation, set up the curve board 3 in the right angle board 2, then draw a parallel X axle on the blackboard, then align X axle coordinate auxiliary line 25 with X axle on the blackboard, then draw the curve along the curve slot 9 with the chalk 18, if the curve is longer, after finishing drawing a curve, connect the head end of the curve slot 9 above the curve board 3 with the tail end of the last curve, then draw the second curve along the curve slot 9, therefore can draw the curve simply and swiftly through the curve board 3, the curve is accurate and beautiful;
then, drawing an accurate angle on the blackboard through the angle drawing mechanism, wherein one annular groove 13, the angle mark 26, the transparent plate 28 and the linear groove 27 form the angle drawing mechanism together, when a teacher draws intersecting lines with different angles, the teacher usually makes general judgment according to self teaching experience and then draws the angle, so that the students can be influenced to understand the figure, in order to avoid the situation, firstly, a straight line is drawn on the blackboard, then the right-angle plate 2 is attached to the blackboard, the teacher can conveniently overlap the linear groove 27 with the straight line through the transparent plate 28, then the teacher can select the angle required by the teacher through the angle mark 26, then a mark is placed on the annular groove 13 corresponding to the angle by using the chalk 18, then the head end of the straight line is connected with the mark point, so that the accurate angle can be drawn, the understanding of the students to the figure is enhanced, and when the teacher draws a circle, the teacher can draw the chalk 18 into a circle along the annular groove 13, so that the teacher can draw conveniently;
finally, a circle with a determined diameter is drawn through the circle drawing precision mechanism, one diameter groove 12, the diameter groove, the first cylinder 4, the second cylinder 11, the diameter graduated scale 8, the pointer 17 and the chalk 18 form the circle drawing precision mechanism, a teacher wants to accurately draw the circle with the determined diameter in the drawing process, the teacher is difficult to draw and spends more time and wastes classroom time, in order to avoid the situation, the first cylinder 4 and the second cylinder 11 are respectively moved towards two ends of the diameter groove 12, the pointer 17 on the first cylinder 14 and the second cylinder 11 is always aligned with the diameter graduated scale 8 when moving, the movement is stopped until the distance between the first cylinder 14 and the second cylinder 11 is equal to the radius, then the first cylinder 4 is pressed, so that the sucker 16 at the bottom end of the first cylinder 4 is tightly attached to the blackboard, and then the first cylinder 4 is used as a fulcrum, rotate second cylinder 11, make chalk 18 of second cylinder 11 bottom use first cylinder 4 to be circular motion as the centre of a circle on the blackboard, from drawing the circular of regulation size, in the middle of the process of drawing the circle, first cylinder 4 original place is motionless, and second cylinder 11 and right angle board 2 remain relative quiescent condition throughout, thereby guarantee that the distance between first cylinder 4 and the second cylinder 11 can not change, consequently can draw accurate circle through the accurate circle mechanism of the aforesaid drawing, the accuracy of figure has been strengthened, teaching efficiency has been promoted, this is exactly this kind of high mathematics special drawing device's theory of operation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a special drawing device of higher mathematics, includes device main part (1), square board (2), curve board (3) and first cylinder (4), its characterized in that: the front side of the device main body (1) is fixedly connected with a right-angle plate (2), the peripheral outer wall of the right-angle plate (2) is connected with the front side peripheral outer wall of the device main body (1), the other side of the right-angle plate (2) is fixedly connected with a limiting hole (5), the peripheral outer wall of the limiting hole (5) is connected with the other side inner wall of the right-angle plate (2), one side of the right-angle plate (2) is fixedly connected with a curve plate (3), the other side peripheral outer wall of the curve plate (3) is connected with one side peripheral outer wall of the right-angle plate (2), the middle of the curve plate (3) is fixedly connected with an X-axis coordinate auxiliary line (25), the peripheral outer wall of the X-axis coordinate auxiliary line (25) is connected with the middle inner side inner wall of the curve plate (3), the front side of the curve plate (3) is fixedly connected with a curve groove (9), the peripheral outer wall of the curve groove, the middle of one side of the rectangular plate (2) is fixedly connected with an annular groove (13), the peripheral outer wall of the annular groove (13) is connected with the middle inner side inner wall of one side of the rectangular plate (2), the top end of the rectangular plate (2) is fixedly connected with a diameter graduated scale (8), the back peripheral outer wall of the diameter graduated scale (8) is connected with the top front peripheral outer wall of the rectangular plate (2), the bottom end of the diameter graduated scale (8) is fixedly connected with a diameter groove (12), the top peripheral outer wall of the diameter groove (12) is connected with the bottom peripheral outer wall of the diameter graduated scale (8), the other side inner wall of the diameter groove (12) is movably connected with a first cylinder (4), the peripheral outer wall of the first cylinder (4) is connected with the other side inner wall of the diameter groove (12), and the inner wall of one side of the diameter groove (12) is movably connected with a second cylinder (11), the outer peripheral wall of the second cylinder (11) is connected with the inner wall of one side of the diameter groove (12);
a pointer (17) is fixedly connected to one side of the first cylinder (4), the peripheral outer wall of the other side of the pointer (17) is connected with the peripheral outer wall of one side of the first cylinder (4), a connecting rod (14) is fixedly connected to the bottom end of the first cylinder (4), the peripheral outer wall of the top end of the connecting rod (14) is connected with the peripheral outer wall of the bottom end of the first cylinder (4), a limiting ring (15) is fixedly connected to the periphery of the bottom of the connecting rod (14), and the inner side inner wall of the limiting ring (15) is connected with the peripheral outer wall of the bottom of the connecting rod (14);
a chalk groove (21) is fixedly connected inside the second column body (11), the peripheral outer wall of the chalk groove (21) is connected with the inner side inner wall of the second column body (11), one side of the chalk groove (21) is movably connected with an extrusion rod (20), the other side peripheral outer wall of the extrusion rod (20) is connected with the inner side inner wall of one side of the chalk groove (21), one side of the extrusion rod (20) is movably connected with a fine adjustment nut (19), the other side peripheral outer wall of the fine adjustment nut (19) is connected with the one side peripheral outer wall of the extrusion rod (20), the inner wall of the chalk groove (21) is movably connected with chalk (18), and the top peripheral outer wall of the chalk (18) is connected with the inner side inner wall of the chalk groove (21);
the two ends of the limiting ring (15) are movably connected with sliding chutes (22), the inner side inner walls of the sliding chutes (22) are connected with the outer peripheral walls of the two ends of the limiting ring (15), the top end of the sliding chute (22) is fixedly connected with a baffle (23), and the outer peripheral walls of the baffle (23) are connected with the inner side inner walls of the sliding chutes (22);
a fixed block (10) is fixedly connected to the middle of the top end of the right-angle plate (2), and the peripheral outer wall of the bottom end of the fixed block (10) is connected with the peripheral outer wall of the top end of the right-angle plate (2);
the interior wall fixed connection of ring channel (13) has angle mark (26), the outer wall of the periphery of angle mark (26) links to each other with the interior wall of ring channel (13), the back fixedly connected with transparent plate (28) of angle mark (26), the outer wall of the front periphery of transparent plate (28) links to each other with the outer wall of the back periphery of angle mark (26), the centre fixedly connected with straight line groove (27) of transparent plate (28), the outer wall of the periphery of straight line groove (27) links to each other with the inboard inner wall in the centre of transparent plate (28).
2. The advanced mathematics specialized drawing device according to claim 1, characterized in that: the bottom fixedly connected with straight line scale (6) of rectangular plate (2), the peripheral outer wall in top of straight line scale (6) links to each other with the peripheral outer wall in bottom of rectangular plate (2).
3. The advanced mathematics specialized drawing device according to claim 1, characterized in that: the middle of the right-angle plate (2) is fixedly connected with a handle (7), and the peripheral outer wall of the bottom end of the handle (7) is connected with the peripheral outer wall of the top end of the right-angle plate (2).
4. The advanced mathematics specialized drawing device according to claim 1, characterized in that: the bottom end of the first column body (4) is connected with a sucker (16) in a nested mode, and the peripheral outer wall of the top of the sucker (16) is connected with the inner wall of the inner side of the bottom end of the first column body (4).
5. The advanced mathematics specialized drawing device according to claim 1, characterized in that: the inside fixedly connected with small-size magnet (24) in both ends of right-angle board (2), the peripheral outer wall of small-size magnet (24) links to each other with the inboard inner wall in both ends of right-angle board (2).
6. The advanced mathematics specialized drawing device according to claim 1, characterized in that: the inner wall of the limiting hole (5) is fixedly connected with an annular sleeve (29), and the peripheral outer wall of the annular sleeve (29) is connected with the inner side inner wall of the limiting hole (5).
7. The advanced mathematics specialized drawing device according to claim 1, characterized in that: the bottom end of the interior of the first column body (4) is fixedly connected with a cushion body (30), and the peripheral outer wall of the cushion body (30) is connected with the inner wall of the bottom end of the first column body (4).
8. The advanced mathematics specialized drawing device according to claim 1, characterized in that: the curve plate (3) is provided with a middle X-axis coordinate auxiliary line (25) and a front curve groove (9).
9. The advanced mathematics specialized drawing device according to claim 1, characterized in that: one annular groove (13) forms an angle drawing mechanism together with an angle indicator (26), a transparent plate (28) and a linear groove (27).
10. The advanced mathematics specialized drawing device according to claim 1, characterized in that: one diameter groove (12) is arranged and forms a precise circle drawing mechanism together with the first cylinder (4), the second cylinder (11), the diameter graduated scale (8), the pointer (17) and the chalk (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168543.3A CN112829498A (en) | 2019-11-25 | 2019-11-25 | Special drawing device of higher mathematics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168543.3A CN112829498A (en) | 2019-11-25 | 2019-11-25 | Special drawing device of higher mathematics |
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| CN112829498A true CN112829498A (en) | 2021-05-25 |
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|---|---|---|---|
| CN201911168543.3A Pending CN112829498A (en) | 2019-11-25 | 2019-11-25 | Special drawing device of higher mathematics |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202821U (en) * | 1987-03-03 | 1988-05-11 | 王为民 | Drawing board for middle school mathematics |
| CN2060400U (en) * | 1988-09-23 | 1990-08-15 | 周国元 | Drawing board |
| CN2136748Y (en) * | 1992-05-30 | 1993-06-23 | 徐向舟 | Multifunction drawing instrument |
| CN2156049Y (en) * | 1992-12-19 | 1994-02-16 | 文永成 | All-function mapper |
| CN2273655Y (en) * | 1996-01-11 | 1998-02-04 | 裴建盟 | Right angle coordinate drawing board |
| CN2508984Y (en) * | 2001-09-28 | 2002-09-04 | 孙庆国 | Portable angle instrument |
| CN201012591Y (en) * | 2007-03-25 | 2008-01-30 | 温林 | Multi-function drawing rule for student |
| CN202448596U (en) * | 2012-02-28 | 2012-09-26 | 邵彦辰 | Multifunctional plotter |
| CN204451730U (en) * | 2014-12-09 | 2015-07-08 | 广东工业大学 | Multifunctional shape changeable rule |
| CN204712726U (en) * | 2015-04-16 | 2015-10-21 | 聂显帆 | Student stationery multifunctional ruler |
| CN105711301A (en) * | 2016-04-01 | 2016-06-29 | 陈庭 | Universal ruler for study |
| CN206012134U (en) * | 2016-06-22 | 2017-03-15 | 谢尚韬 | A kind of multifunctional compass of teaching |
| CN206579352U (en) * | 2016-09-18 | 2017-10-24 | 陈凤英 | A kind of teaching apparatus for mathematics |
-
2019
- 2019-11-25 CN CN201911168543.3A patent/CN112829498A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202821U (en) * | 1987-03-03 | 1988-05-11 | 王为民 | Drawing board for middle school mathematics |
| CN2060400U (en) * | 1988-09-23 | 1990-08-15 | 周国元 | Drawing board |
| CN2136748Y (en) * | 1992-05-30 | 1993-06-23 | 徐向舟 | Multifunction drawing instrument |
| CN2156049Y (en) * | 1992-12-19 | 1994-02-16 | 文永成 | All-function mapper |
| CN2273655Y (en) * | 1996-01-11 | 1998-02-04 | 裴建盟 | Right angle coordinate drawing board |
| CN2508984Y (en) * | 2001-09-28 | 2002-09-04 | 孙庆国 | Portable angle instrument |
| CN201012591Y (en) * | 2007-03-25 | 2008-01-30 | 温林 | Multi-function drawing rule for student |
| CN202448596U (en) * | 2012-02-28 | 2012-09-26 | 邵彦辰 | Multifunctional plotter |
| CN204451730U (en) * | 2014-12-09 | 2015-07-08 | 广东工业大学 | Multifunctional shape changeable rule |
| CN204712726U (en) * | 2015-04-16 | 2015-10-21 | 聂显帆 | Student stationery multifunctional ruler |
| CN105711301A (en) * | 2016-04-01 | 2016-06-29 | 陈庭 | Universal ruler for study |
| CN206012134U (en) * | 2016-06-22 | 2017-03-15 | 谢尚韬 | A kind of multifunctional compass of teaching |
| CN206579352U (en) * | 2016-09-18 | 2017-10-24 | 陈凤英 | A kind of teaching apparatus for mathematics |
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Application publication date: 20210525 |
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