CN211138813U - Multifunctional teaching ruler - Google Patents

Abstract

The utility model relates to a teaching aid technical field specifically is a multi-functional teaching ruler, including main chi frame and two main rulers, main chi frame side is equipped with the standing groove, two main ruler tip are placed in the standing groove, main chi frame passes through the bolt fastening with the main ruler, at least one main ruler rotates with the bolt and is connected, be equipped with the length scale on the main ruler, be equipped with the angle scale on the main chi frame in the bolt outside, the tip that is close to main chi frame on the main ruler is equipped with the index of aiming at the angle scale, the tip that main chi frame was kept away from to two main rulers is equipped with chalk groove and nail post groove respectively. According to the scheme, the angle can be measured according to the angle scales pointed by indexes on the main ruler after the main ruler rotates, the nail posts and the chalks are arranged at the end parts of the two main rulers respectively, the nail posts are stabilized on the blackboard, the chalks are pressed on the blackboard, and the chalks rotate around the nail posts to draw circles, so that the problem that the prior art cannot simultaneously measure straight lines, measure angles, draw straight lines and draw circles is solved.

Description

Multifunctional teaching ruler

Technical Field

The utility model relates to a teaching aid technical field specifically is a multi-functional teaching chi.

Background

In the current classroom teaching, teachers use various teaching tools, and although high-tech computers and projectors are provided, the blackboard still occupies a great proportion in teaching, especially in mathematics class. In the teaching of geometry and the like needing drawing, a teacher can often use various wooden teaching aids. These teaching aids are bulky, single-function, neither portable nor very convenient to use. Mainly include set square, ruler and compasses in traditional teaching tool, it is more troublesome to use the in-process of carrying to place inconveniently after using, also lead to placing mixed and disorderly condition easily.

The patent document with the Chinese publication number of CN108340712A discloses a multifunctional magnetic ruler, which comprises a straight ruler, a circle drawing part, a positioning block and a rotating block, wherein a magnetic attraction block is arranged in the positioning block, annular scales are printed on the top surface of the positioning block, the rotating block is arranged above a positioning body, the rotating block is made of transparent materials and is rotatably connected with the positioning block through a rotating shaft, and an identification line is printed on the rotating block along the radial direction of the rotating block; one end of the straight scale is connected with the rotating block through a connecting rod, and the marking line is parallel to the straight scale; the circle drawing part comprises a bottom block and a positioning clamp for fixing a chalk, the bottom block is connected with the other end of the ruler, a through hole is formed in the bottom block, and the positioning clamp is fixed on the bottom block on one side of the through hole. The invention can not only assist in drawing straight lines, but also draw inclined lines according to the required angle and draw circles with different diameters. However, the structure of the scheme is inconvenient to measure the angle, and the bottom of the scheme is not flat, so that the straight line is inconvenient to measure and draw.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multi-functional teaching ruler to solve prior art and can not satisfy the problem of measuring straight line, measuring angle, drawing sharp and drawing the circle simultaneously.

In order to achieve the above object, the basic scheme of the present invention is as follows:

the utility model provides a multifunctional teaching ruler, includes main chi frame and two main rulers, main chi frame side is equipped with the standing groove, two main chi tip is placed in the standing groove, main chi frame passes through the bolt fastening with the main chi, at least one the main chi rotates with the bolt to be connected, be equipped with the length scale on the main chi, be equipped with the angle scale on the main chi frame in the bolt outside, the tip that is close to main chi frame on the main chi is equipped with the index of aiming at the angle scale, two the tip that the main chi was kept away from main chi frame is equipped with chalk groove and nail post groove respectively, the chalk groove is used for fixed chalk, be fixed with the nail post in the nail post groove, at least one the bottom of main chi is fixed with the magnetic part.

The beneficial effects of the basic scheme are as follows: (1) in the scheme, at least one main ruler is rotationally connected with a bolt, the angle can be measured according to the angle scale pointed by the index on the main ruler after the main ruler rotates, and the two main rulers are matched to draw an angle and a triangle with a designated angle; and the main scale is provided with length scales, so that the lines can be conveniently measured and the lines with specified length can be conveniently drawn.

(2) Two main chi tip are equipped with nail post and chalk respectively in this scheme, will nail the post and stabilize on the blackboard, adjust the angle of opening between two main chi to press the chalk on the blackboard, rotate round the nail post, can draw the circle, through changing the angle between two main chi, can draw the circle that the diameter is different.

(3) In the scheme, the two main rulers are fixed on the main ruler frame, the chalk and the nail column are fixed at the end parts of the main rulers, the bottom parts of the main rulers are flat, the main rulers can be completely pressed on a blackboard conveniently, and drawing of figures such as straight lines, angles and triangles can be completed conveniently.

(4) This scheme is fixed with the magnetic part in the bottom of main scale, and the blackboard that has used now is mostly the metal material, and the magnetic part can inhale mutually with the blackboard, is convenient for on the one hand carry out assistance-localization real-time to the main scale when drawing the line segment or measuring angle, and on the other hand can be when not needing this scheme of use, adsorbs this scheme in the blackboard corner, is convenient for accomodate and places, can not appear mixed and disorderly condition, and is convenient for get and take.

Further, any one end portion, far away from the main ruler frame, of the main ruler is fixed with a laser pen, a placing groove is formed in the side edge of the main ruler, a battery box is placed in the placing groove, a switch is installed on the side edge of the placing groove, and the battery box, the switch and the laser pen are electrically connected. The laser pen is convenient for point out the target on the blackboard, is more convenient for teaching.

Furthermore, a level gauge is fixed on the side edge of any one of the main scales. The spirit level is capable of level measurement.

Furthermore, the nail post is detachably connected with the nail post groove, and an elastic rubber ring is fixed in the nail post groove. The tip of nail post is comparatively sharp-pointed, when the compasses function of this scheme of need not using, can take off the nail post, avoids hindering mr or student at the in-process nail post mistake of teaching, and the elastic rubber circle can stirrup nail post, avoids nail post not hard up, landing to appear.

Furthermore, the two main rulers are rotatably connected with the bolts, angle scales are arranged on the main ruler frames outside the two bolts, and indexes for aligning the angle scales are arranged at the end parts, close to the main ruler frames, of the two main rulers. Two main rulers homoenergetic rotate, and all are equipped with corresponding index and angle scale for the angular scope that this scheme can measure, draw is bigger.

Furthermore, the connecting part of the main ruler frame and the upper end surfaces of the two main rulers is in a matched arc shape. The arc that matches each other can guarantee the smooth rotation of two main rulers, and keep the laminating with the main ruler frame at the pivoted in-process, gap, contained angle can not appear, avoid appearing gap, contained angle and press from both sides the condition of hindering the people.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the bottom of the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a main scale frame and a main scale connecting portion in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a nail post and a nail post groove in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of chalk and a chalk groove in an embodiment of the present invention.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Reference numerals in the drawings of the specification include: the chalk comprises a main ruler frame 1, a bolt 2, an index 3, a length scale 4, a main ruler 5, a laser pen 6, chalk 7, a nail column 8, a battery box 9, a switch 10, a level gauge 11, an angle scale 12, a nail column groove 13, a chalk groove 14, an elastic rubber ring 15, a screw cap 16 and a magnet 17.

Examples

Substantially as shown in the attached figures 1 and 2: the utility model provides a multifunctional teaching ruler, including main chi frame 1 and two main rulers 5, it is shown to combine figure 3, main chi frame 1 side is equipped with the standing groove, two main ruler 5 tip are placed in the standing groove, main chi frame 1 passes through bolt 2 and nut with main ruler 5 is fixed, main chi frame 1 is arc-shaped with the junction of two main ruler 5 up end for the assorted, two main rulers 5 all rotate with bolt 2 to be connected, and all be equipped with angle scale 12 on the main chi frame 1 in two 2 outsides of bolt, the tip that two main rulers 5 are close to main chi frame 1 all is equipped with index 3 of aiming at angle scale 12. The main scales 5 are provided with length scales 4, the bottoms of the two main scales 5 are fixed with magnets 17, as shown in fig. 4 and 5, the end parts, far away from the main scale frame 1, of the two main scales 5 are respectively provided with a chalk groove 14 and a nail post groove 13, the chalk groove 14 is used for fixing chalk 7, a nail post 8 is clamped in the nail post groove 13, and an elastic rubber ring 15 is fixed in the nail post groove 13.

The end portion, far away from the main ruler frame 1, of one main ruler 5 provided with the chalk groove 14 is fixed with the laser pen 6, the side edge of the main ruler 5 is provided with a placing groove, a battery box 9 is placed in the placing groove, the side edge of the placing groove is provided with a switch 10, and the battery box 9, the switch 10 and the laser pen 6 are electrically connected. A level 11 is also fixed to the side of one main scale 5 provided with a chalk groove 14 by screws.

The specific implementation process is as follows: when the distance needs to be measured or a straight line needs to be drawn: the bottom of the embodiment is pressed at a designated position to perform corresponding measurement or straight line drawing operation.

When the angle needs to be measured: the inner side edge of one main scale 5 is coincided with one side of the angle, the other main scale 5 is rotated to enable the inner side edge of the other main scale 5 to be coincided with the other side of the angle, then the angle scales 12 pointed by the two indexes 3 are read, and the sum of the degrees of the two scales is the degree of the measured angle.

Drawing an angle with a specific degree or drawing a triangle with a specific included angle and side length: rotating the two main rulers 5 to keep a required angle between the two main rulers 5, and then placing the two main rulers 5 on a blackboard to draw an angle of a specific degree along the side edges of the two main rulers 5; and drawing two sides of the angle with the specific degree according to the side length of the triangle, so that the triangle with the specific included angle and the side length can be drawn.

When a circle needs to be drawn: the nail column 8 is stabilized on the blackboard, the angle of opening between the two main scales 5 is adjusted, the chalk 7 is pressed on the blackboard and rotates around the nail column 8, a circle can be drawn, and the circle with different diameters can be drawn by changing the angle between the two main scales 5.

In addition, the laser pen 6 in the embodiment can be used for pointing explanation in the teaching process, and the level gauge 11 can be used for level measurement.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. A multifunctional teaching ruler is characterized in that: the chalk box comprises a main ruler frame and two main rulers, wherein a placing groove is formed in the side edge of the main ruler frame, the end portions of the two main rulers are placed in the placing groove, the main ruler frame and the main rulers are fixed through bolts, at least one main ruler is rotatably connected with the bolts, length scales are arranged on the main rulers, angle scales are arranged on the main ruler frame outside the bolts, indexes which are aligned with the angle scales are arranged at the end portions, close to the main ruler frame, of the main rulers, two chalk grooves and a chalk post groove are formed in the end portions, far away from the main ruler frame, of the main rulers, the chalk grooves are used for fixing chalks, a nail post is fixed in the chalk post groove, and a magnetic part is fixed at least one bottom of the main.

2. A multi-functional teaching ruler as claimed in claim 1 wherein: the laser pen is fixed at the end, far away from the main ruler frame, of any one main ruler, a placing groove is formed in the side edge of the main ruler, a battery box is placed in the placing groove, a switch is installed on the side edge of the placing groove, and the battery box, the switch and the laser pen are electrically connected.

3. A multi-functional teaching ruler as claimed in claim 2 wherein: a level gauge is further fixed on one side edge of any one of the main scales.

4. A multi-functional teaching ruler as claimed in claim 3 wherein: the nail post is detachably connected with the nail post groove, and an elastic rubber ring is fixed in the nail post groove.

5. A multi-functional teaching ruler as claimed in claim 4 wherein: the two main rulers are rotatably connected with the bolts, angle scales are arranged on the main ruler frames outside the two bolts, and indexes for aligning the angle scales are arranged at the end parts, close to the main ruler frames, of the two main rulers.

6. A multi-functional teaching ruler as claimed in claim 1 wherein: the joint of the main ruler frame and the upper end surfaces of the two main rulers is in a matched arc shape.

Images