CN208698286U - A kind of College Mathematics Teaching apparatus - Google Patents

Abstract

The utility model discloses a kind of College Mathematics Teaching apparatus, its structure includes set square, ruler, protractor, the first in command, compass case and chalk holder, it is welded at the top of the set square with ruler, it is welded on the left of the set square with chalk holder, is welded on the left of the chalk holder with protractor.A kind of College Mathematics Teaching apparatus of the utility model, by being provided with ruler, set square, protractor and compass case, one end of take-up spring is fixed among compass case by the spring fixing axle inside compass case, line is automatically retracted by take-up spring, so that teaching aid solves, to cannot achieve a ruler multi-purpose, teacher is caused to attend class needs with many teaching aids, it makes troubles to work, by being provided with chalk holder, chalk holder can fill chalk, chalk holder is hauled out by guide groove, teaching aid be cannot achieve with store function, cause teacher to attend class to draw slowly, the problem of low efficiency.

Description

A kind of College Mathematics Teaching apparatus

Technical field

The utility model is a kind of College Mathematics Teaching apparatus, belongs to teaching apparatus for mathematics field.

Background technique

Teaching apparatus for mathematics enables student intuitively, visually to understand each appliances and teachers' instruction used in the content of courses When the general name of apparatus that uses.Teaching aid is referred to as.The learning interest of student can be improved in teaching aid, enriches perceptual knowledge, and help forms bright True concept, the observation ability and thinking ability of Developing Students '.Generally divide common teaching aid, special teaching aid, 3 class of Teachig-aid for infant studying, with Science and technology rapid development, College Mathematics Teaching apparatus has also obtained technological improvement, but the prior art cannot achieve one Ruler is multi-purpose, causes teacher to attend class needs with many teaching aids, makes troubles to work, cannot achieve teaching aid with storage The problem of function causes teacher to attend class and draws slowly, low efficiency.

Utility model content

In view of the deficienciess of the prior art, the utility model aim is to provide a kind of College Mathematics Teaching apparatus, with solution It is multi-purpose certainly to cannot achieve a ruler, causes teacher to attend class needs with many teaching aids, makes troubles to work, cannot achieve teaching The problem of apparatus has store function, causes teacher to attend class and draws slowly, low efficiency.

To achieve the goals above, the utility model is achieved through the following technical solutions: a kind of College Maths are taught Learn apparatus, including set square, ruler, protractor, the first in command, compass case and chalk holder, at the top of the set square and ruler into Row welding, the set square left side are welded with chalk holder, are welded on the left of the chalk holder with protractor, the chalk Lower end is provided with the first in command at the top of box, and is threadedly coupled with the first in command, upper end and compasses at the top of the chalk holder Box is threadedly coupled, and the compass case is made of compasses box body, take-up spring, chalk sleeve, axis and spring fixing axle, described Upper end is threadedly coupled with compasses box body at the top of chalk holder, and spring fixing axle is provided among the compasses tray interior, and And welded with spring fixing axle, rolling connection, the take-up spring are carried out with take-up spring on the outside of the spring fixing axle Outside and axis carry out rolling connection, and the take-up spring is rotatablely connected by axis and the chalk sleeve at the top of compass case, The chalk holder is made of chalk box body, second handle and guide groove, and chalk box portion outside two sides are provided with guide groove, the powder Pencil box body bottom is threadedly coupled with second handle, by guide groove inside the chalk holder, carries out rolling company with chalk box body It connects.

Further, a length of 800mm of the ruler, width 50mm.

Further, the protractor radius is 400mm.

Further, the straightedge surface has master scale.

Further, the angle at three angles of set square is respectively 30 °, 60 °, 90 °.

Further, the master scale fluorescent powder marking on the straightedge surface.

Further, the ruler, set square and protractor material are aluminium alloy.

A kind of College Mathematics Teaching apparatus of the utility model, by being provided with ruler, set square, protractor and compasses One end of take-up spring is fixed among compass case by box, the spring fixing axle inside compass case, by take-up spring by line from Dynamic to withdraw, so that teaching aid solves, to cannot achieve a ruler multi-purpose, causes teacher to attend class needs with many teaching aids, gives work belt It is inconvenient to come, and by being provided with chalk holder, chalk holder can fill chalk, be hauled out chalk holder by guide groove, cannot achieve teaching and uses The problem of tool has store function, causes teacher to attend class and draws slowly, low efficiency.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the compass case schematic diagram of internal structure of the utility model；

Fig. 3 is the chalk box body structural schematic diagram of the utility model；

In figure: set square -1, ruler -2, compass case -3, protractor -4, chalk holder -5, the first in command -6, compasses box body - 31, take-up spring -32, chalk sleeve -33, line -34, spring fixing axle -35, chalk box body -51, second handle -52, guide groove -53.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

Fig. 1, Fig. 2 and Fig. 3 are please referred to, the utility model provides a kind of College Mathematics Teaching apparatus: including set square 1, directly Ruler 2, compass case 3, protractor 4, chalk holder 5 and the first in command 6,1 top of set square are welded with ruler 2,1 left side of set square It is welded with chalk holder 5,5 left side of chalk holder is welded with protractor 4, and 5 top lower end of chalk holder is provided with the first in command 6, and be threadedly coupled with the first in command 6,5 top upper end of chalk holder is threadedly coupled with compass case 3, compass case 3 by Compasses box body 31, take-up spring 32, chalk sleeve 33, axis 34 and spring fixing axle 35 form, 5 top upper end of chalk holder and compasses Box body 31 is threadedly coupled, and 31 bosom of compasses box body is provided with spring fixing axle 35, and box body 31 is fixed with spring Axis 35 is welded, and 35 outside of spring fixing axle carries out rolling connection, 32 outside of take-up spring and axis 34 with take-up spring 32 Rolling connection is carried out, take-up spring 32 is rotatablely connected by axis 34 and the chalk sleeve 33 at 3 top of compass case, chalk holder 5 It is made of chalk box body 51, second handle 52 and guide groove 53,51 both sides external of chalk box body is provided with guide groove 53, chalk box body 51 Bottom is threadedly coupled with second handle 52, by guide groove 53 inside chalk holder 5, carries out rolling connection with chalk box body 51, The a length of 800mm of ruler 2, width 50mm, 4 radius of protractor is 400mm, and there are master scale, 1 three angles of set square in 2 surface of ruler Angle be respectively 30 °, 60 °, 90 °, the master scale fluorescent powder marking on 2 surface of ruler, ruler 2, set square 1 and protractor 4 materials are aluminium alloy.

Compass case 3 described in this patent, it is because equipped with take-up spring inside box that compass case 3, which can roll line 34, 32, when pulling out measurement length, the length of line 34 and take-up spring 32 is really elongated, once using finishing, 3 the inside of compass case Take-up spring 32 can shrink automatically, line 34 under spring force also and then shrink, so line 34 will roll.

When user wants using this patent, chalk holder 5 is filled into chalk first, then ruler is put on blackboard Chalk holder 5 is hauled out, the chalk in chalk holder 5 is taken out, starts to draw, solves that cannot achieve a ruler multi-purpose, teacher is caused to attend class It needs to make troubles with many teaching aids to work, chalk is put into chalk sleeve 33, when user thinks picture bowlder, by chalk Set 33 is hauled out, and measures the line 34 for taking hauling-out with a yardstick, pins the drawing with coloured chalk circle of line 34, after a chalk is finished, chalk holder 5 is led to The guide groove 53 for crossing two sides is hauled out, and is taken out the chalk in chalk holder 5, is continued to draw, and is solved and be cannot achieve teaching aid with depositing The problem of storage function causes teacher to attend class and draws slowly, low efficiency.By being provided with ruler 2, set square 1, protractor 4 and compasses One end of take-up spring 34 is fixed among compass case 3 by box 5, the spring fixing axle 35 inside compass case 5, passes through take-up spring 32 automatically retract line 34, so that teaching aid solves, to cannot achieve a ruler multi-purpose, and teacher's many teaching of needs band of attending class is caused to be used Tool, makes troubles to work, and by being provided with chalk holder 5, chalk holder 5 can fill chalk, be dragged chalk holder 5 by guide groove 53 Out, cannot achieve teaching aid with store function, cause teacher attend class draw it is slow, the problem of low efficiency.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein.It should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. a kind of College Mathematics Teaching apparatus, including set square (1), ruler (2), protractor (4) and the first in command (6), special Sign is: further including compass case (3), chalk holder (5), is welded at the top of the set square (1) with ruler (2), the triangle It is welded, is welded on the left of the chalk holder (5) with protractor (4), the chalk holder with chalk holder (5) on the left of ruler (1) (5) top lower end is provided with the first in command (6), and is threadedly coupled with the first in command (6), at the top of the chalk holder (5) Upper end is threadedly coupled with compass case (3), and the compass case (3) is by compasses box body (31), take-up spring (32), chalk sleeve (33), axis (34) and spring fixing axle (35) composition, chalk holder (5) the top upper end and compasses box body (31) carry out screw thread Connection, compasses box body (31) bosom is provided with spring fixing axle (35), and is welded with spring fixing axle (35) It connects, carries out rolling connection, take-up spring (32) outside and axis on the outside of the spring fixing axle (35) with take-up spring (32) Line (34) carries out rolling connection, the take-up spring (32) by the chalk sleeve (33) at the top of axis (34) and compass case (3) into Row rotation connection, the chalk holder (5) are made of chalk box body (51), second handle (52) and guide groove (53), the chalk holder Body (51) both sides external is provided with guide groove (53), and chalk box body (51) bottom is threadedly coupled with second handle (52), By guide groove (53) inside the chalk holder (5), rolling connection is carried out with chalk box body (51).

2. a kind of College Mathematics Teaching apparatus according to claim 1, it is characterised in that: the ruler (2) is a length of 800mm, width 50mm.

3. a kind of College Mathematics Teaching apparatus according to claim 1, it is characterised in that: protractor (4) radius is 400mm。

4. a kind of College Mathematics Teaching apparatus according to claim 1, it is characterised in that: there is mark on ruler (2) surface Quasi- scale.

5. a kind of College Mathematics Teaching apparatus according to claim 1, it is characterised in that: (1) three angle of the set square Angle be respectively 30 °, 60 °, 90 °.