CN210113124U

CN210113124U - Plotting device is sat to mathematics

Info

Publication number: CN210113124U
Application number: CN201920223007.8U
Authority: CN
Inventors: 凌卉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2020-02-25
Anticipated expiration: 2029-02-22

Abstract

The utility model discloses a mathematical coordinates drawing device relates to teaching equipment field technical field, specifically is a mathematical coordinates drawing device, including erecting the chi, erect one side fixedly connected with cardboard of chi, the top fixedly connected with horizontal ruler of cardboard, threaded hole is seted up to positive one side of horizontal ruler, the inside threaded connection of screw hole has the screw thread post. This mathematical coordinate drawing device, through erecting the chi, the horizontal ruler, the indicator board, cooperation setting between slip bottom block and the locking bolt, when the teacher need do the picture in first quadrant, place the horizontal ruler orientation left side, draw the vertical and horizontal coordinate system earlier, then come according to required coordinate, the slip indicator board, the position that the indicator pointed is the abscissa, then upwards look into along the instruction scale and can find the ordinate, can find the position of this coordinate this moment, the teacher only needs one smooth one to look into can find required coordinate point fast, and easy operation is convenient.

Description

Plotting device is sat to mathematics

Technical Field

The utility model relates to a teaching equipment field technical field specifically is a plotting device is sat to mathematics.

Background

In the teaching process of advanced mathematics, teachers often need to draw coordinate graphs on a blackboard and explain various curve functions, and the advanced mathematics generally needs to draw coordinate grid lines firstly when drawing function graphs according to a function equation, obtain a plurality of coordinate points according to the function equation, mark the coordinate points one by one on the grid lines, and draw the function graphs according to the coordinate points, which is very troublesome.

The use of a common ruler or a common set square for mathematical teaching to draw coordinate axes and function curves is often inconvenient, the positions of all points in the function curves are difficult to accurately determine according to the numerical values of the coordinate axes, the drawing consumes too long time, and the teaching progress is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model provides a plotting device is sat to mathematics has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a mathematical coordinates drawing device, includes erects the chi, erect one side fixedly connected with cardboard of chi, the top fixedly connected with horizontal chi of cardboard, the screw hole has been seted up to the positive one side of horizontal chi, the inside threaded connection of screw hole has the screw thread post, the one end fixedly connected with twist grip of screw thread post, the positive middle part fixedly connected with slide opening of horizontal chi, the inside of slide opening runs through there is the locking bolt, the bottom threaded connection of locking bolt has the slip bottom block, the indicator plate has been cup jointed to the surface of locking bolt, the hole is write has been seted up at the positive middle part of indicator plate.

Optionally, the two sides of the vertical ruler are provided with vertical ruler scale bars, and the top and the bottom of the front side of the transverse ruler are provided with transverse scale bars.

Optionally, the both sides of indicator board front all are provided with the instruction scale strip, write the inner wall fixedly connected with indicateing arm in hole.

Optionally, a clamping groove is formed in one side of the back face of the transverse ruler, the clamping groove is matched with the clamping plate, and a fixing hole is formed in the front face of the clamping plate.

Optionally, the vertical ruler and the horizontal ruler are both rectangular in shape.

Optionally, a round hole is formed in the bottom of the indicating plate, and an internal thread is arranged inside the round hole.

(III) advantageous effects

The utility model provides a plotting device is sat to mathematics possesses following beneficial effect:

the mathematical coordinate drawing device is characterized in that through the matched arrangement of the vertical ruler, the transverse ruler, the indicating plate, the sliding bottom block and the locking bolt, when a teacher needs to perform coordinate drawing teaching, the teacher can draw a longitudinal and transverse coordinate system according to the device firstly, then determines the placing position of the drawing device according to different quadrants in which drawing is performed, for example, when the teacher needs to perform drawing in a first quadrant, the transverse ruler is placed towards the left side, the longitudinal and transverse coordinate system is drawn firstly, then the indicating plate is slid according to required coordinates, the position indicated by the indicating mark is the transverse coordinate, then the longitudinal coordinate can be found by upward checking along the indicating scale strip, at the moment, the position of the coordinate can be found, the teacher can find required coordinate points quickly by only one sliding check, the operation is simple and convenient, grid check for coordinate points is not needed, the teaching difficulty of the teacher is greatly saved, the teaching quality and the teaching efficiency are improved, when the teacher need look for the coordinate in the fourth quadrant, the device's position is unchangeable, unscrew the locking bolt, change the orientation of indicator board downwards into, still according to original method, can find the coordinate point fast, when needs are at second quadrant or third quadrant during seeking the coordinate point, only need at this moment change the horizontal ruler orientation into the right can, operation method is as above, when not using the device, unscrew the screw thread post, then the orientation of horizontal ruler changes upwards, so the device can save a large amount of spaces, it is very convenient that the teacher carries.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic view of the rear view structure of the present invention.

In the figure: 1. a vertical ruler; 2. clamping a plate; 3. a transverse ruler; 4. a threaded hole; 5. a threaded post; 6. rotating the handle; 7. a slide hole; 8. locking the bolt; 9. sliding the bottom block; 10. an indicator panel; 11. a writing hole; 12. a vertical scale dividing bar; 13. a transverse scale bar; 14. indicating a scale bar; 15. an indicator mark; 16. a card slot; 17. A circular hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: a mathematics sitting plotting device comprises a vertical ruler 1, wherein both sides of the vertical ruler 1 are provided with vertical ruler scale bars 12, both the front top and the bottom of a transverse ruler 3 are provided with transverse scale bars 13, one side of the vertical ruler 1 is fixedly connected with a clamping plate 2, the top of the clamping plate 2 is fixedly connected with a transverse ruler 3, the vertical ruler 1 and the transverse ruler 3 are both rectangular in shape, one side of the back of the transverse ruler 3 is provided with a clamping groove 16, the clamping groove 16 is matched with the clamping plate 2, the front of the clamping plate 2 is provided with a fixing hole, one side of the front of the transverse ruler 3 is provided with a threaded hole 4, the inner part of the threaded hole 4 is in threaded connection with a threaded column 5, one end of the threaded column 5 is fixedly connected with a rotating handle 6, the middle part of the front of the transverse ruler 3 is fixedly connected with a sliding hole 7, the inner part of the sliding hole 7 is penetrated by a locking bolt 8, the, the both sides in the front of indicator panel 10 all are provided with and instruct scale bar 14, the inner wall fixedly connected with indicator 15 of writing hole 11, round hole 17 has been seted up to the bottom of indicator panel 10, and the inside of round hole 17 is provided with the internal thread, indicator panel 10 is openly seted up writing hole 11 in the middle part, through the cooperation setting between vertical ruler 1, horizontal ruler 3, indicator panel 10, slip bottom block 9 and locking bolt 8, when mr needs to carry out the coordinate drawing teaching, the teacher can draw the vertical and horizontal coordinate system according to the device earlier, then according to the different quadrants that do the picture, confirm the place position of this device that does the picture, for example, when the teacher needs to do the picture in first quadrant, place horizontal ruler 3 towards the left side, draw the vertical and horizontal coordinate system earlier, then according to required coordinate, slide indicator panel 10, the position that indicator 15 indicates is the abscissa, then upward look up along instructing scale bar 14 and can find the vertical coordinate, can find the position of this coordinate this moment, the teacher only needs one to slide one to look for can find required coordinate point fast, easy operation is convenient, do not need to draw the net again and look for the coordinate point, the very big teaching degree of difficulty that has saved the teacher, teaching quality and efficiency have been improved, when the teacher needs to look for the coordinate in the fourth quadrant, the device's position is unchangeable, unscrew locking bolt 8, change the orientation of indicator board 10 downwards, still according to original method, can find the coordinate point fast, when needs look for the coordinate point in second quadrant or third quadrant, only need to change the horizontal ruler 3 orientation right this moment can, operating method is the same as above, when not using the device, unscrew threaded column 5, then the orientation of horizontal ruler 3 changes upwards, the device can save a large amount of spaces like this, the teacher carries very conveniently.

As an optimal technical solution of the utility model: through the setting of screw post 5, twist grip 6 and screw hole 4, rotate twist grip 6 and can control the rotation of screw post 5, make the horizontal ruler 3 dismantle more conveniently.

In conclusion, when the mathematical coordinate drawing device is used, through the matching arrangement among the vertical ruler 1, the horizontal ruler 3, the indicating plate 10, the sliding bottom block 9 and the locking bolt 8, when a teacher needs to perform coordinate drawing teaching, a teacher can draw a vertical and horizontal coordinate system according to the device, then determine the placing position of the drawing device according to different quadrants in which drawing is performed, for example, when the teacher needs to perform drawing in a first quadrant, the horizontal ruler 3 is placed towards the left, the vertical and horizontal coordinate system is drawn firstly, then according to the required coordinates, the indicating plate 10 is slid, the position indicated by the indicating mark 15 is the horizontal coordinate, then the vertical coordinate can be found by upward checking along the indicating scale 14, at this moment, the teacher can find the required coordinate point quickly by only one sliding check, the operation is simple and convenient, no grid is needed to find the coordinate point, the very big teaching degree of difficulty of having saved the teacher, teaching quality and efficiency have been improved, when the teacher need look for the coordinate in the fourth quadrant, the device's position is unchangeable, 8 unscrewing of locking bolt, change the orientation of indicator board 10 downwards into, still according to original method, can find the coordinate point fast, when the coordinate point is looked for at second quadrant or third quadrant to needs, only need at this moment change the horizontal ruler 3 orientation into the right can, operation method is same with above, when not using the device, unscrew threaded column 5, then the orientation of horizontal ruler 3 changes upwards into, so the device can save a large amount of spaces, it is very convenient that the teacher carries.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A mathematical coordinate drawing apparatus comprising a vertical ruler (1), characterized in that: erect one side fixedly connected with cardboard (2) of chi (1), top fixedly connected with horizontal chi (3) of cardboard (2), screw hole (4) have been seted up to positive one side of horizontal chi (3), the inside threaded connection of screw hole (4) has screw thread post (5), the one end fixedly connected with twist grip (6) of screw thread post (5), positive middle part fixedly connected with slide opening (7) of horizontal chi (3), the inside of slide opening (7) is run through has locking bolt (8), the bottom threaded connection of locking bolt (8) has slip bottom block (9), indicator board (10) have been cup jointed to the surface of locking bolt (8), writing hole (11) have been seted up at the positive middle part of indicator board (10).

2. A mathematical coordinate drawing device as defined in claim 1, wherein: the vertical scale is characterized in that vertical scale dividing strips (12) are arranged on two sides of the vertical scale (1), and transverse dividing strips (13) are arranged at the top and the bottom of the front side of the transverse scale (3).

3. A mathematical coordinate drawing device as defined in claim 1, wherein: the indicating plate is characterized in that indicating scale strips (14) are arranged on two sides of the front face of the indicating plate (10), and indicating marks (15) are fixedly connected to the inner wall of the writing hole (11).

4. A mathematical coordinate drawing device as defined in claim 1, wherein: one side of the back of the transverse ruler (3) is provided with a clamping groove (16), the clamping groove (16) is matched with the clamping plate (2), and the front of the clamping plate (2) is provided with a fixing hole.

5. A mathematical coordinate drawing device as defined in claim 1, wherein: the vertical ruler (1) and the transverse ruler (3) are both rectangular.

6. A mathematical coordinate drawing device as defined in claim 1, wherein: a round hole (17) is formed in the bottom of the indicating plate (10), and internal threads are arranged inside the round hole (17).