CN203093508U

CN203093508U - Multifunctional learning tool ruler

Info

Publication number: CN203093508U
Application number: CN 201320029310
Authority: CN
Inventors: 韩芸芳; 赵锐; 张祥兰
Original assignee: JILIN VOCATIONAL COLLEGE OF INDUSTRY AND TECHNOLOGY
Current assignee: JILIN VOCATIONAL COLLEGE OF INDUSTRY AND TECHNOLOGY
Priority date: 2013-01-18
Filing date: 2013-01-18
Publication date: 2013-07-31
Anticipated expiration: 2023-01-18

Abstract

The utility model relates to a multifunctional learning tool ruler. The multifunctional learning tool ruler comprises five rulers, a protractor, a sliding block and a connecting rope. The five rulers are composed of a ruler a, a ruler b, a ruler c, a ruler d and a ruler e and respectively provided with more than ten through holes, and the connecting rope can be tied on the through holes of the ruler c. The five rulers can be detachably connected together by using the through holes in the five rulers, and every ruler can rotate around connecting points. The protractor can be detachably connected on the connecting point of the ruler a and the ruler b. The sliding block is sleeved on the ruler a. By using the multifunctional learning tool ruler, a plurality of geometric figures can be drawn, any angle can be measured and drawn, circulars with any diameter and ellipses can be drawn, a gemel four-bar mechanism and derived forms of the gemel four-bar mechanism can be demonstrated, so that students can easily understand and grasp knowledge, and teaching efficiency and effect of teachers are improved. Besides, the multifunctional leering tool ruler is simple in structure, convenient to use, and low in cost.

Description

A kind of multi-functional learning aid chi

Technical field:

The utility model relates to the students' supplies field, relates to a kind of multi-functional learning aid chi in particular.

Background technology:

The student in learning process or the teacher in teaching process, all can use drawing instrument, need use ruler during drawing, set square, protractor and compasses or the like, the ruler of prior art, set square, protractor and compasses etc. all are drawing instruments independently, and every kind of instrument usage is single, also each have their own function, therefore student or teacher need carry that a lot of drawing instruments carry out that geometry charts and scale tolerance etc., take up room like this, carry inconvenience.

The student of science and engineering generally can learn mechanical principle course, relate to various four-bar linkages in the course and contain four-bar mechanism of moving sets etc., the teacher does not have the demonstrator of specialty to be used for the demonstration of various mechanisms in teaching process, make the student be difficult to knowledge understanding is grasped, also reduced efficient and effect that the teacher teaches.

The utility model content:

The purpose of this utility model is at the deficiencies in the prior art part, a kind of multi-functional learning aid chi is provided, can realize multiple drawing and demo function, can when teaching, play good booster action, strengthen the understand and master ability of student to knowledge, improve efficient and effect that the teacher teaches, it is simple in structure, and is easy to use.

Technology solution of the present utility model is as follows:

A kind of multi-functional learning aid chi, it comprises five rulers, a protractor, a slide block and a connection cord, described five rulers are made up of ruler a, ruler b, ruler c, ruler d and ruler e, article five, be respectively equipped with the through hole more than ten on the ruler, described connection cord can tie up on the through hole of ruler c; Utilize five through holes on the ruler removably to link together between described five rulers, and every ruler all can rotate around tie point; Described protractor removably is connected the tie point place of ruler a and ruler b; Described slide block set is connected on the ruler a.

As preferably, described through hole is evenly distributed on ruler a, ruler b, ruler c, ruler d and the ruler e.

As preferably, be respectively equipped with graduation mark on described five rulers, the center of circle of the through hole on five rulers is positioned on the extended line of graduation mark.

The beneficial effects of the utility model are:

1, the utility model just can be realized multiple drawing and demo function to the ruler simple combination with five, for example can draw straight line, oblique line, parallel lines, draw various triangles such as right angled triangle, equilateral triangle, isosceles triangle, acute triangle and obtuse triangle etc., various quadrangles such as parallelogram, rectangle, rhombus, square etc.

2, the utility model can be realized the measurement and the drafting of various angle values, also can realize the measurement of planar linkage mechanism crank angle between two limit positions and maximum pendulum angle.

3, the utility model is by the connection cord on the through hole that ties up to ruler c, and the other end of connection cord connects the circle that drawing pen can be drawn different-diameter, and connection cord can tie up on two through holes on the ruler a simultaneously, and drawing pen is along the connection cord ellipse that can draw that moves.

4, the utility model can be realized various four-bar linkages, as the motion demonstrating of crank and rocker mechanism, double-crank mechanism, double rocker mechanism etc.; Can realize containing the four-bar mechanism of moving sets such as rotating guide-bar, pendulum guide rod, the directly demonstration of mechanism such as moving guide rod and coupler-point curve, be convenient to the understanding of student, also be convenient to teacher's teaching knowledge.

5, the utlity model has the multi-functional of intelligence development, drawing and teaching aid, detachably be used in combination arbitrarily, meet the different needs, not only student and the teacher for primary school, middle school and university provides instrument in daily study and teaching, also provide convenience for industry fan's studying and living, applied widely, simple in structure, easy to use, be convenient to promote the use of.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is a structural representation of the present utility model;

Structural representation when Fig. 2 draws triangle for the utility model;

Fig. 3 draws structural representation when trapezoidal for the utility model;

Fig. 4 draws for the utility model and the structural representation when taking measurement of an angle;

Structural representation when Fig. 5 draws ellipse for the utility model;

Fig. 6 is the demonstration graph of the utility model as crank and rocker mechanism;

Fig. 7 is the demonstration graph of the utility model as slider-crank mechanism;

Among the figure: 1-ruler a; 2-ruler b; 3-ruler c; 4-ruler d; 5-ruler e; The 6-through hole; The 7-connection cord; The 8-protractor; The 9-slide block.

The specific embodiment:

The following stated is preferred embodiment of the present utility model only, is not that scope of the present utility model is limited.

Embodiment 1, see accompanying drawing 1 ~ 5, a kind of multi-functional learning aid chi, it comprises five rulers, a protractor, a slide block and a connection cord, described five rulers are made up of ruler a1, ruler b2, ruler c3, ruler d4 and ruler e5, article five, be respectively equipped with the through hole 6 more than ten on the ruler, described connection cord 7 can tie up on the through hole of ruler c; Utilize five through holes on the ruler removably to link together between described five rulers, and every ruler all can rotate around tie point; Described protractor 8 removably is connected the tie point place of ruler a and ruler b; Described slide block 9 is socketed on the ruler a.

Described through hole is evenly distributed on ruler a, ruler b, ruler c, ruler d and the ruler e.

Be respectively equipped with graduation mark on described five rulers, the center of circle of the through hole on five rulers is positioned on the extended line of graduation mark, can accurately measure the size of figure when drawing like this.

Present embodiment can be realized multiple drawing and demo function with five just simply making up between ruler, protractor and the connection cord, for example can draw straight line, oblique line, parallel lines, draw various triangles such as right angled triangle, equilateral triangle, isosceles triangle, acute triangle and obtuse triangle etc., various quadrangles such as parallelogram, rectangle, rhombus, square and trapezoidal etc.Can realize the measurement and the drafting of various angle values, also can realize the measurement of planar linkage mechanism crank angle between two limit positions and maximum pendulum angle; Can be by the connection cord on the through hole that ties up to ruler c, the other end of connection cord connects the circle that drawing pen can be drawn different-diameter, and connection cord can tie up on two through holes on the ruler a simultaneously, and drawing pen is along the connection cord ellipse that can draw that moves.Structural representation when being the drafting triangle as accompanying drawing 2; Accompanying drawing 3 is the structural representation when trapezoidal for drawing; Accompanying drawing 4 is for drawing and structural representation when taking measurement of an angle; Accompanying drawing 5 is the structural representation when drawing ellipse.

Embodiment 2, see accompanying drawing 6, a kind of multi-functional learning aid chi, ruler a, ruler b, ruler c and ruler d head and the tail successively link together, and ruler a, ruler b, ruler c and ruler d can rotate around the tie point between them, if do frame with ruler a, ruler d is as quarter butt, ruler d then can realize the demonstration of crank and rocker mechanism around the tie point rotation of ruler a and ruler d.

Embodiment 3, see accompanying drawing 7, a kind of multi-functional learning aid chi is made up of ruler a, ruler b, ruler c and slide block, ruler a is connected with ruler b, ruler b is connected with ruler c, and ruler c is connected with slide block, and slide block set is on ruler a, if a does frame with ruler, ruler b can be around the tie point rotation of ruler a and ruler b, and then slide block can horizontally slip along ruler a, realizes the demonstration of slider-crank mechanism.

In like manner, can be by the combination of parts of the present utility model to various four-bar linkages, as the demonstration of double-crank mechanism and double rocker mechanism or the like; Simultaneously to containing the four-bar mechanism of moving sets, as rotating guide-bar, pendulum guide rod and directly mechanism such as moving guide rod can demonstrate.

The utility model can be used as the demonstration of specialty and the needs that drawing instrument satisfies primary school, middle school, each stage Faculty and Students' teaching of university, intelligence development and study, being particularly suitable for each university, School of High Profession Technology and the middle teachers and students of duty universities and colleges uses, can satisfy the drawing needs in its daily life, more can when teaching, play good booster action, strengthen the understand and master ability of student to knowledge, improve efficient and effect that the teacher teaches, alleviate work load, reduce educational costs.

The foregoing description is the specific descriptions that the utility model is carried out; just the utility model is further specified; can not be interpreted as the qualification to the utility model protection domain, those skilled in the art makes some nonessential improvement and adjusts according to the content of above-mentioned utility model and all falls within the protection domain of the present utility model.

Claims

1. multi-functional learning aid chi, it is characterized in that: it comprises five rulers, a protractor, a slide block and a connection cord, described five rulers are made up of ruler a, ruler b, ruler c, ruler d and ruler e, article five, be respectively equipped with the through hole more than ten on the ruler, described connection cord can tie up on the through hole of ruler c; Utilize five through holes on the ruler removably to link together between described five rulers, and every ruler all can rotate around tie point; Described protractor removably is connected the tie point place of ruler a and ruler b; Described slide block set is connected on the ruler a.

2. a kind of multi-functional learning aid chi according to claim 1, it is characterized in that: described through hole is evenly distributed on ruler a, ruler b, ruler c, ruler d and the ruler e.

3. a kind of multi-functional learning aid chi according to claim 1 is characterized in that: be respectively equipped with graduation mark on described five rulers, the center of circle of the through hole on five rulers is positioned on the extended line of graduation mark.