CN219727696U - Combined ruler for mathematical education - Google Patents

Abstract

The utility model discloses a combined ruler for mathematical education, which belongs to the technical field of teaching aids and comprises a protractor, wherein a triangle is clamped in the protractor, a first rotating bearing is fixedly connected to the left side surface of the protractor, two supporting frames are rotatably connected to the outer surface of an outer ring of the first rotating bearing, a folding rod is arranged in each supporting frame, a second rotating bearing is fixedly connected to the left side surface of the protractor, a fan blade is fixedly connected to the outer surface of the second rotating bearing, and a ruler is fixedly connected to the upper surface of the fan blade. This combination chi for mathematical education through being provided with the protractor can use at the measurement angle during the teaching, utilizes the triangle joint in the protractor simultaneously to utilize first rolling bearing and second rolling bearing to be connected ruler, support frame and folding pole, thereby can make a plurality of types ruler become one and wholly make the teacher use, and then can improve the convenience of teaching, make the teacher can be better use.

Description

Combined ruler for mathematical education

Technical Field

The utility model belongs to the technical field of teaching aids, and particularly relates to a combined ruler for mathematical education.

Background

Mathematics is the science of various structures on the research set, and it can be seen that mathematics is an abstract subject, and strict process is the key of mathematics abstraction, and teaching tools such as compasses, protractors, straightedge, set square and the like are often used in the mathematical teaching process.

The utility model discloses a combined drawing rule for mathematical education, which comprises a fixed plate, a drawing rule, a first connecting piece, an isosceles triangle, a second connecting piece and a protractor, wherein a hanging hole, a first chalk fixing hole and a second chalk placing hole are sequentially formed in the fixed plate from top to bottom, the circle centers of the hanging hole, the first chalk fixing hole and the second chalk placing hole are on the same straight line, the drawing rule is fixed on the fixed plate through a first chute, and the first connecting piece is connected with the fixed plate through a hinge shaft.

By adopting the technical scheme, this combination drawing rule for mathematical education can be with drawing rule, isosceles triangle and protractor combination as a whole, can use alone again simultaneously, so just make things convenient for the teacher to carry, and be convenient for the mr to use, when needs draw the circle, can place the hole at first chalk fixed orifices and second chalk and place the chalk, hold isosceles triangle and protractor and rotate, first chalk fixed orifices is the centre of a circle, just can simulate the mode of compasses and draw the circle, the practicality is strong, the teaching efficiency of teacher has been improved greatly, excellent in use effect, the interval between the lower extreme of hanging hole and the fixed plate lower extreme is greater than the length of drawing rule, just so the drawing rule just can not block the hanging hole, people can use the hanging hole to place this novel ruler, above-mentioned technical scheme, though can fuse the use, but when using, the teacher generally needs to carry multiple son to carry out teaching, this equipment can not fuse multiple ruler and use, thereby cause when using inadequately convenient.

Therefore, we propose a combination ruler for mathematical education to solve the above problems.

Disclosure of Invention

The utility model aims to solve the problem that in the prior art, the device can not fuse multiple scales for use, and provides a combined ruler for mathematical education.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a combination chi for mathematical education, includes the protractor, the inside joint of protractor has the set square, the first rolling bearing of left surface fixedly connected with of protractor, the surface rotation of first rolling bearing outer lane is connected with two support frames, every the inside of support frame all is provided with folding rod, the left surface fixedly connected with second rolling bearing of protractor, the surface fixedly connected with flabellum of second rolling bearing outer lane, the upper surface fixedly connected with ruler of flabellum.

Preferably, the left side face of the protractor is fixedly connected with two connecting blocks, and the left side faces of the two connecting blocks are fixedly connected with handles together.

Preferably, the left side of handle fixedly connected with connecting plate, the left side of connecting plate fixedly connected with horizon rule.

Preferably, the right side of the protractor is fixedly connected with an anti-skid adhesive tape, and the anti-skid adhesive tape is required to be in a soft round shape.

Preferably, the left side face of the protractor is fixedly connected with a sliding groove plate, the inside of the sliding groove plate is connected with a limiting plate in a sliding manner, and the right side face of the limiting plate is contacted with the left side face of the triangular plate.

Preferably, the outer surface of the outer ring of the first rotating bearing is fixedly connected with a limiting groove plate, and the inner wall of the limiting groove plate is contacted with the outer surface of the supporting frame.

Preferably, a threaded fixing rod is arranged above each supporting frame, and the bottom end of each threaded fixing rod sequentially penetrates through the supporting frames and the folding rods in a threaded mode and extends to the lower portion of the supporting frames.

Preferably, the front of limiting groove plate fixedly connected with helping hand pole, the surface fixedly connected with of helping hand pole is equidistant to be arranged glues the ring.

In summary, the technical effects and advantages of the present utility model are: the angle gauge is arranged, so that the angle gauge can be used for measuring angles during teaching, the triangular plate is clamped in the angle gauge, the ruler, the support frame and the folding rod are connected through the first rotating bearing and the second rotating bearing, a plurality of types of rulers can be integrally used, the convenience of teaching can be improved, teachers can use the angle gauge better, then the blades are matched with the first rotating bearing and the second rotating bearing to rotate, the integral ruler can have flexibility during individual use, and the accuracy of the ruler is not affected during use, so that the convenience of the ruler in teaching use is further improved.

Drawings

FIG. 1 is a schematic view of the perspective structure of the protractor of the present utility model;

FIG. 2 is a schematic view of the structure of the inventive ruler;

FIG. 3 is a schematic view of a three-dimensional structure of a support frame according to the present utility model;

fig. 4 is a schematic view of the structure of the anti-slip adhesive tape according to the present utility model in a right view.

In the figure: 1. an angle gauge; 2. a support frame; 3. a first rotating bearing; 4. a triangle; 5. a limiting plate; 6. sliding groove plates; 7. a ruler; 8. a fan blade; 9. a second rotating bearing; 10. a threaded fixing rod; 11. limiting groove plates; 12. a rubber ring; 13. a booster rod; 14. a connecting plate; 15. a connecting block; 16. a handle; 17. a level bar; 18. an anti-slip adhesive tape; 19. folding the rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a combination ruler for mathematical education comprises a protractor 1, wherein two connecting blocks 15 are fixedly connected to the left side surface of the protractor 1, handles 16 are fixedly connected to the left side surfaces of the two connecting blocks 15, and the combination ruler can be connected to the protractor 1 through the connecting blocks 15 and fix the handles 16, so that the handles 16 can drive equipment to move.

The left side of handle 16 fixedly connected with connecting plate 14, the left side of connecting plate 14 fixedly connected with level bar 17, through connecting plate 14, can connect on handle 16 to fix level bar 17, can make level bar 17 carry out stable use.

The inside joint of protractor 1 has set square 4, and the right flank fixedly connected with antiskid adhesive tape 18 of protractor 1, and antiskid adhesive tape 18 needs to become soft circular form, through antiskid adhesive tape 18, can connect on protractor 1 to through the characteristic of antiskid adhesive tape 18, can carry out the antiskid when using.

The left surface fixedly connected with first rotation bearing 3 of protractor 1, the surface rotation of first rotation bearing 3 outer lane is connected with two support frames 2, the left surface fixedly connected with slip frid 6 of protractor 1, the inside sliding connection of slip frid 6 has limiting plate 5, the right flank of limiting plate 5 contacts with the left surface of set square 4, through slip frid 6, can connect on protractor 1 to make limiting plate 5 slide, thereby can make limiting plate 5 carry out spacing with set square 4.

The inside of every support frame 2 all is provided with folding rod 19, and the left surface fixedly connected with second rolling bearing 9 of protractor 1, the surface fixedly connected with spacing frid 11 of first rolling bearing 3 outer lane, the inner wall of spacing frid 11 contacts with the surface of support frame 2, can be with support frame 2 and folding rod 19 spacing including through spacing frid 11, can make support frame 2 and folding rod 19 carry out stable drawing circle and use.

The surface fixedly connected with flabellum 8 of second rolling bearing 9 outer lane, the upper surface fixedly connected with ruler 7 of flabellum 8, the top of every support frame 2 all is provided with screw thread dead lever 10, and the bottom of every screw thread dead lever 10 is the screw thread in proper order runs through support frame 2 and folding pole 19 and extends to the below of support frame 2, utilizes screw thread dead lever 10, can pierce through support frame 2 screw thread to pierce through folding pole 19 screw thread, can make support frame 2 and folding pole 19 more firm through the rotation.

The front fixedly connected with helping hand pole 13 of spacing frid 11, the outer surface fixedly connected with equidistance of helping hand pole 13 is arranged gluey ring 12, utilizes helping hand pole 13, can connect on spacing frid 11 to the helping hand rotates and uses, through gluey ring 12 simultaneously, can play skid-proof effect.

The working principle of the utility model is that; when using, at first, move equipment to suitable position, when the teacher needs to use the chi, through handle 16 cooperation connecting block 15, remove the chi, when the chi removes to suitable position, the situation of level bar 17 can be observed to the teacher, the cooperation chi carries out measurement teaching, when need measure the angle, can use protractor 1, and carry out accurate measurement with the angle, when the teacher needs to use set square 4, can slide limiting plate 5 in sliding groove plate 6, make limiting plate 5 and set square 4 not in the contact, then take off set square 4 and use, can install set square 4 in protractor 1 once more when using, when need use ruler 7, can be with ruler 7 through flabellum 8 downward reversing, and make ruler 7 rotate the adjustment through second rolling bearing 9, make ruler 7 carry out convenient use measurement teaching, when need use the ruler carry out the drawing, can keep away from each other through first rolling bearing 3 with limiting plate 5, and set square 4, and use folding bar 19, can draw round bar 19 and octal bar 10, use the folding device to draw round bar 10, thereby use the fixed line bar, use the fixed line bar is used to draw round bar 19, and use the fixed line bar is convenient and use, the fixed line bar is used to draw round bar 19.

In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. The utility model provides a combination chi for mathematical education, includes protractor (1), its characterized in that: the inside joint of protractor (1) has set square (4), the left surface fixedly connected with first rotation bearing (3) of protractor (1), the surface rotation of first rotation bearing (3) outer lane is connected with two support frames (2), every the inside of support frame (2) all is provided with folding rod (19), the left surface fixedly connected with second rotation bearing (9) of protractor (1), the surface fixedly connected with flabellum (8) of second rotation bearing (9) outer lane, the last fixed surface of flabellum (8) is connected with ruler (7).

2. A combination ruler for mathematical education as claimed in claim 1 wherein: the left side face of the protractor (1) is fixedly connected with two connecting blocks (15), and the left side faces of the two connecting blocks (15) are fixedly connected with handles (16) together.

3. A combination ruler for mathematical education as claimed in claim 2 wherein: the left side of handle (16) fixedly connected with connecting plate (14), the left side of connecting plate (14) fixedly connected with horizon rule (17).

4. A combination ruler for mathematical education as claimed in claim 1 wherein: the right side face of the protractor (1) is fixedly connected with an anti-slip adhesive tape (18), and the anti-slip adhesive tape (18) needs to be in a soft round shape.

5. A combination ruler for mathematical education as claimed in claim 1 wherein: the left side face of protractor (1) fixedly connected with slip frid (6), the inside sliding connection of slip frid (6) has limiting plate (5), the right flank of limiting plate (5) contacts with the left surface of set square (4).

6. A combination ruler for mathematical education as claimed in claim 1 wherein: the outer surface of the outer ring of the first rotating bearing (3) is fixedly connected with a limiting groove plate (11), and the inner wall of the limiting groove plate (11) is contacted with the outer surface of the supporting frame (2).

7. A combination ruler for mathematical education as claimed in claim 1 wherein: each support frame (2) top all is provided with screw thread dead lever (10), every screw thread dead lever (10) bottom all runs through support frame (2) and folding rod (19) and extends to support frame (2) below in proper order screw thread.

8. The combination ruler for mathematical education as claimed in claim 6, wherein: the front of limiting groove plate (11) fixedly connected with helping hand pole (13), the surface fixedly connected with of helping hand pole (13) is equidistant rubber ring (12) of arranging.