CN206733903U - A kind of higher mathematics teaching ruler - Google Patents

Abstract

The utility model discloses a kind of higher mathematics teaching ruler, including the first teaching ruler body, chalk fixed cylinder, second teaching ruler body and the second picture groove, the first picture groove and the 3rd picture groove are provided with the first teaching ruler body, the chalk fixed cylinder is fixed on rubber sliding block, the second teaching ruler body is connected by concavo-convex chain with the first teaching ruler body, the linear slide bar includes first straight line sliding bar, rotary shaft and second straight line sliding bar, and it is connected with rotary shaft between first straight line sliding bar and second straight line sliding bar, one end of the first straight line sliding bar is fixed on the second teaching ruler body, and rubber sliding block is provided with first straight line sliding bar, the second picture groove is located on the second teaching ruler body, and second is provided with the right side of picture groove and carries hole.The higher mathematics teaching ruler during graphing without using multiple types of tools, it is easy to use convenient, it is time saving and energy saving, be advantageous to teacher and imparted knowledge to students, it is practical.

Description

A kind of higher mathematics teaching ruler

Technical field

Instructional device technical field is the utility model is related to, specially a kind of higher mathematics teaching ruler.

Background technology

In a broad sense, the mathematics outside elementary mathematics is all higher mathematics, also have by the more deep algebraically in middle school, geometry with And simple set theory is preliminary, logic is tentatively referred to as medium mathematics, elementary mathematics and university as middle and primary schools' stage The transition of the higher mathematics in stage, it is generally accepted that higher mathematics be by infinitesimal calculus, more deep algebra, geometry and The basic subject that intersection content between them is formed.

In Higher Mathematics Teaching, teacher will often draw straight line, vertical line, arc etc. on blackboard, with traditional religion When learning the apparatus above-mentioned line segment of drafting, teacher generally toggles by several teaching aids and drawn, and so not only wastes time and energy, and And the strong influence efficiency of teaching of teacher, practicality be not strong, it is impossible to meets the use demand of people.In view of the existing skill of the above Defect present in art, it is necessary to it is further improved, makes it more for practicality, can just meet actual use situation.

Utility model content

The purpose of this utility model is to provide a kind of higher mathematics teaching ruler, to solve what is proposed in above-mentioned background technology Not only wasted time and energy during existing teaching ruler graphing, and the strong influence efficiency of teaching of teacher, practicality is not strong, The use demand problem of people can not be met.

To achieve the above object, the utility model provides following technical scheme：A kind of higher mathematics teaching ruler, including first Teaching ruler body, chalk fixed cylinder, the second teaching ruler body and the second picture groove, is provided with the first teaching ruler body One picture groove and the 3rd picture groove, and arc sliding bar is fixed with the inside of the first picture groove, the chalk fixed cylinder is fixed on On rubber sliding block, and through there is arc sliding bar inside rubber sliding block, the second teaching ruler body passes through concavo-convex chain and first Teaching ruler body is connected, and linear slide bar is provided with the second teaching ruler body, and the linear slide bar includes first Linear slide bar, rotary shaft and second straight line sliding bar, and be connected between first straight line sliding bar and second straight line sliding bar Rotary shaft, one end of the first straight line sliding bar is fixed on the second teaching ruler body, and is set on first straight line sliding bar There is rubber sliding block, the second picture groove is located on the second teaching ruler body, and is provided with the right side of the second picture groove and carries hole.

Preferably, the first picture groove and arc sliding bar are semicircle, and the center of circle is in same point.

Preferably, the first picture groove, the second picture groove and the 3rd picture well width are equal, and width is consolidated more than chalk The path length of safety barrel.

Preferably, the second picture groove and linear slide bar are mutually perpendicular to the 3rd picture groove.

Preferably, the upper end of the right-hand member of the second picture groove and the 3rd picture groove is in " L " shape.

Compared with prior art, the beneficial effects of the utility model are：The higher mathematics teaching ruler is provided with the first picture Groove, the second picture groove and the 3rd picture groove, due to the first picture groove and arc sliding bar semicircular in shape, placed in chalk fixed cylinder After chalk, chalk fixed cylinder is slided on arc sliding bar by rubber sliding block, it is possible to which semicircle is drawn by the first picture groove Shape or circle, the second picture groove and the 3rd picture groove are mutually perpendicular to, and pass through the second picture groove using chalk fixed cylinder can Straight line or parallel lines are drawn, coordinate the 3rd picture groove can to draw vertical line, the device need not during graphing It is easy to use convenient using multiple types of tools, it is time saving and energy saving, be advantageous to teacher and imparted knowledge to students, it is practical.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the utility model partial structurtes schematic side view；

Fig. 3 is the utility model linear slide bar partial structural diagram.

In figure：1st, the first teaching ruler body, the 2, first picture groove, 3, arc sliding bar, 4, chalk fixed cylinder, 5, rubber slides Block, the 6, second teaching ruler body, 7, concavo-convex chain, 8, linear slide bar, 9, first straight line sliding bar, 10, rotary shaft, 11, second Linear slide bar, the 12, second picture groove, the 13, the 3rd picture groove, 14, carry hole.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of higher mathematics teaching ruler, including the first religion Learn chi body 1, the first picture groove 2, arc sliding bar 3, chalk fixed cylinder 4, rubber sliding block 5, the second teaching ruler body 6, bumps Chain 7, linear slide bar 8, first straight line sliding bar 9, rotary shaft 10, second straight line sliding bar 11, the second picture groove the 12, the 3rd are drawn Figure groove 13 and hole 14 is carried, the first picture groove 2 and the 3rd picture groove 13, and the first picture groove 2 are provided with the first teaching ruler body 1 Inner side be fixed with arc sliding bar 3, the first picture groove 2 and arc sliding bar 3 are semicircle, and the center of circle is in same point, First picture groove 2, the second picture groove 12 and the width of the 3rd picture groove 13 are equal, and width is more than the path length of chalk fixed cylinder 4, this The can of sample chalk fixed cylinder 4 enters line slip in the first picture groove 2, the second picture groove 12 and the 3rd picture groove 13, so as to Figure is drawn, chalk fixed cylinder 4 is fixed on rubber sliding block 5, and the inside of rubber sliding block 5, through there is arc sliding bar 3, second teaches Learn chi body 6 by concavo-convex chain 7 with the first teaching ruler body 1 to be connected, can be combined according to the content of courses or individually Use, using effect is good, and is provided with linear slide bar 8 on the second teaching ruler body 6, and it is straight that linear slide bar 8 includes first Line sliding bar 9, rotary shaft 10 and second straight line sliding bar 11, and between first straight line sliding bar 9 and second straight line sliding bar 11 Rotary shaft 10 is connected with, one end of first straight line sliding bar 9 is fixed on the second teaching ruler body 6, and first straight line sliding bar 9 On be provided with rubber sliding block 5, the second picture groove 12 is located on the second teaching ruler body 6, and the second picture groove 12 right side set Hole 14 is carried, the second picture groove 12 and linear slide bar 8 are mutually perpendicular to the 3rd picture groove 13, the right-hand member of the second picture groove 12 Upper end with the 3rd picture groove 13 is in " L " shape, and the right-hand member projection of the second picture groove 12 can fix second straight line sliding bar 11 Firmly, its rotation is prevented, is easy to people to draw straight line, the projection of the upper end of the 3rd picture groove 13, positioning action can be played, can make The anglec of rotation of second straight line sliding bar 11 is up to 90 °, is easy to people to draw vertical line.

Operation principle：When using the higher mathematics teaching ruler, using it is preceding by concavo-convex chain 7 by the second teaching ruler body 6 It is fixed on the first teaching ruler body 1, the device can be carried by carrying hole 14, when semicircle to be drawn, in chalk fixed cylinder 4 Chalk is inside put into, sliding the can of rubber sliding block 5 in arc sliding bar 3 drives chalk fixed cylinder 4 to draw half in the first picture groove 2 Circle, when drawing straight line, the can of rubber sliding block 5 is slided on linear slide bar 8 and drives chalk fixed cylinder 4 in the second picture groove 12 Straight line is drawn, it is necessary to when drawing vertical line, on the basis of straight line is drawn, rubber sliding block 5 is slid into second straight line sliding bar 11 On, in the presence of rotary shaft 10, make to be rotated by 90 ° on second straight line sliding bar 11, so slided in second straight line sliding bar 11 The can of rubber sliding block 5 drives chalk fixed cylinder 4 to draw straight line in the 3rd picture groove 13, coordinates the straight line can group drawn before Vertical line is synthesized, here it is the whole work process of the device.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it can still be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is entered Row equivalent substitution, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., all should Within the scope of protection of the utility model.

Claims (5)

1. a kind of higher mathematics teaching ruler, including the first teaching ruler body（1）, chalk fixed cylinder（4）, the second teaching ruler body （6）With the second picture groove（12）, it is characterised in that：The first teaching ruler body（1）On be provided with the first picture groove（2）With Three picture grooves（13）, and the first picture groove（2）Inner side be fixed with arc sliding bar（3）, the chalk fixed cylinder（4）It is fixed on Rubber sliding block（5）On, and rubber sliding block（5）Inside, which is run through, arc sliding bar（3）, the second teaching ruler body（6）Pass through Concavo-convex chain（7）With the first teaching ruler body（1）It is connected, and the second teaching ruler body（6）On be provided with linear slide bar（8）, The linear slide bar（8）Include first straight line sliding bar（9）, rotary shaft（10）With second straight line sliding bar（11）, and the One straight line sliding bar（9）With second straight line sliding bar（11）Between be connected with rotary shaft（10）, the first straight line sliding bar（9） One end be fixed on the second teaching ruler body（6）On, and first straight line sliding bar（9）On be provided with rubber sliding block（5）, described Two picture grooves（12）Positioned at the second teaching ruler body（6）On, and the second picture groove（12）Right side be provided with and carry hole（14）.

A kind of 2. higher mathematics teaching ruler according to claim 1, it is characterised in that：The first picture groove（2）And arc Shape sliding bar（3）It is semicircle, and the center of circle is in same point.

A kind of 3. higher mathematics teaching ruler according to claim 1, it is characterised in that：The first picture groove（2）, second Picture groove（12）With the 3rd picture groove（13）Width is equal, and width is more than chalk fixed cylinder（4）Path length.

A kind of 4. higher mathematics teaching ruler according to claim 1, it is characterised in that：The second picture groove（12）With it is straight Line sliding bar（8）With the 3rd picture groove（13）It is mutually perpendicular to.

A kind of 5. higher mathematics teaching ruler according to claim 1, it is characterised in that：The second picture groove（12）The right side End and the 3rd picture groove（13）Upper end be in " L " shape.