CN208232654U - A kind of blackboard for mathematical education - Google Patents

Abstract

A kind of blackboard for mathematical education, it is related to mathematical education technical field；It includes blackboard body, and the surface print of blackboard body is equipped with clathrum, provides benchmark to draw；The bottom of the blackboard body is equipped with ash collection slot；The side of the blackboard body is equipped with locking storage box, and the different composite straightedge with protractor body of more set sizes is equipped in locking storage box, and the composite straightedge with protractor body is made of two isometric thin rulers and multiple vacuum chucks.It is equipped with drawing ruler and can store, and can accurately draw in conjunction with the use of clathrum, avoids mathematics teacher and carries the inconvenience of drawing tool, while also can easily handle chalk powder, easy to use, practical.

Description

A kind of blackboard for mathematical education

Technical field

The utility model relates to mathematical education technical fields, and in particular to a kind of blackboard for mathematical education.

Background technique

Need to draw a large amount of geometric figure during mathematical education, therefore mathematics teacher attends class require carrying three daily The teaching aid for drawing such as angle square, compasses, these drawing tool volumes are larger, not only inconvenient to carry, and when drawing operates Inconvenience is drawn not accurate enough.In addition during mathematical education, need largely to demonstrate calculation process, knowledge quantity is big, blackboard Upper writing is more, and wiping blackboard is more frequent, and chalk powder does not allow easy to clean, endangers the health of student and teacher.

Utility model content

The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, it provides a kind of for the black of mathematical education Plate, it is equipped with drawing ruler and can store, can accurately draw in conjunction with the use of clathrum, avoids mathematics teacher and carries drawing tool Inconvenience, while also can easily handle chalk powder, it is easy to use, it is practical.

In order to achieve the above purposes, the technical solution adopted by the utility model is:, and it includes blackboard body, the table of blackboard body Face print is equipped with clathrum, and clathrum is staggeredly made of the vertical line of the horizontal line and interval that are spaced, provides benchmark to draw；It is described The bottom of blackboard body is equipped with ash collection slot, and the side of ash collection slot is connected by water filling switch, water pipe with water source, and another side bottom is logical Cross drainage switch, water pipe is connected with sewage vent line；The side of the blackboard body is equipped with locking storage box, locking storage box Interior to be equipped with the different composite straightedge with protractor body of more set sizes, the composite straightedge with protractor body is by two isometric thin rulers and multiple vacuum chuck structures At；The side of two thin rulers offers fixation hole, and two thin rulers are rotatably dispose on same vacuum chuck by fixation hole, and two The other side of a thin ruler is fixedly installed a vacuum chuck respectively；Multiple spaced chalks are offered on the thin ruler It is inserted into hole, the fixation for picture bowlder chalk.

Preferably, the ash collection slot is obliquely installed relative to blackboard body, water filling side is higher than draining side 0.5- 1.0cm, convenient for the cleaning of chalk dust.

Preferably, the thin ruler is made of lightweight metal material, with a thickness of 2-4mm.

Preferably, opened up in the locking storage box several horizontally-parallel settings, with composite straightedge with protractor body dimensional fits Slot, composite straightedge with protractor body is arranged successively by size and is inserted in slot vertically, selection when being easy to use and receipts after use It receives.

Preferably, the clathrum by constituting with the dark-coloured blackboard paint for being different from blackboard color, is drawn convenient for short distance Figure is watched at a distance without influencing student.

When the utility model is used, math teacher can carry out general mapping by means of clathrum, need using picture work When tool, locking storage box is opened by key, takes out the composite straightedge with protractor body of suitable dimension, by the vacuum chuck of the two thin public sides of ruler After being placed on blackboard suitable position, pressing is fixed, and can refer to clathrum when needing to draw lines, and adjusts the other side of two thin rulers And draw lines after being fixed by vacuum chuck, picture bowlder is needed, chalk only need to be inserted into suitable chalk and inserted in the hole, hand-motion is used Picture circle can be realized in chalk rotation, easy to operate；After the completion of picture, composite straightedge with protractor body can be taken in locking storage box, knot of attending class Shu Hou locks locking storage box.

After adopting the above structure, the utility model has the following beneficial effects: it is equipped with drawing ruler and can store, in conjunction with clathrum Use can accurately draw, avoid the inconvenience that mathematics teacher carries drawing tool, while also can easily handle chalk powder, use It is convenient, it is practical.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

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

Fig. 2 is the expanded schematic diagram of composite straightedge with protractor body 7 in the utility model；

Fig. 3 is the enlarged drawing of A in Fig. 1.

Description of symbols:

Blackboard body 1, clathrum 2, ash collection slot 3, water filling switch 4, drainage switch 5, locking storage box 6, composite straightedge with protractor body 7, Thin ruler 7-1, vacuum chuck 7-2, chalk are inserted into hole 7-11, slot 6-1.

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings.

Referring to as shown in Figure 1-Figure 3, present embodiment the technical solution adopted is that: it includes blackboard body 1, blackboard The surface print of ontology 1 is equipped with clathrum 2, and clathrum 2 is staggeredly made of the vertical line of the horizontal line and interval that are spaced, mentions to draw For benchmark；The bottom of the blackboard body 1 is equipped with ash collection slot 3, and the side of ash collection slot 3 passes through water filling switch 4, water pipe and water source phase Even, another side bottom is connected by drainage switch 5, water pipe with sewage vent line；The ash collection slot 3 is relative to blackboard body 1 is obliquely installed, and water filling side is higher than draining side 0.5-1.0cm, convenient for the cleaning of chalk dust；The side of the blackboard body 1 Be equipped with the different composite straightedge with protractor body 7 of more set sizes equipped with locking storage box 6, in locking storage box 6, the composite straightedge with protractor body 7 by Two isometric thin ruler 7-1 and multiple vacuum chuck 7-2 are constituted；The side of ruler 7-1 two thin offers fixation hole, two thin Ruler 7-1 is rotatably dispose on same vacuum chuck 7-2 by fixation hole, and the other side of ruler 7-1 two thin is fixedly installed respectively One vacuum chuck 7-2；Multiple spaced chalk insertion hole 7-11 are offered on the thin ruler 7-1, are used for picture bowlder The fixation of chalk；Several horizontally-parallel settings and 7 dimensional fits of composite straightedge with protractor body insert is opened up in the locking storage box 6 Slot 6-1, composite straightedge with protractor body 7 be arranged successively by size and be inserted in slot 6-1 vertically, selection when being easy to use and after use Storage.

Wherein, the thin ruler 7-1 is made of lightweight metal material, with a thickness of 2-4mm.The clathrum 2 by with The dark-coloured blackboard paint for being different from blackboard color is constituted, and is drawn convenient for short distance and is watched at a distance without influencing student.

Present embodiment is needed using picture in use, math teacher can carry out general mapping by means of clathrum 2 When figure tool, locking storage box 6 is opened by key, takes out the composite straightedge with protractor body 7 of suitable dimension, by the two thin public sides ruler 7-1 Vacuum chuck 7-2 be placed on blackboard suitable position after, pressing is fixed, and can refer to clathrum 2 when needing to draw lines, and adjusts two The other side of a thin ruler 7-1 and by vacuum chuck 7-2 it is fixed after draw lines, need picture bowlder, it is suitable to be only inserted into chalk Chalk is inserted into the 7-11 of hole, is rotated with hand-motion chalk, and picture circle can be realized, easy to operate；It, can be by composite straightedge with protractor after the completion of picture Body 7 is taken in locking storage box 6, and after school end, locking storage box 6 is locked.

After adopting the above structure, present embodiment has the beneficial effect that it is equipped with and drawing ruler and can store, in conjunction with net The use of compartment can accurately draw, and avoid mathematics teacher and carry the inconvenience of drawing tool, while also can easily handle chalk powder, It is easy to use, it is practical.

The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model Spirit and scope should all cover in the scope of the claims of the utility model.

Claims (5)

1. a kind of blackboard for mathematical education, it is characterised in that: it includes blackboard body (1), and the surface of blackboard body (1) prints Equipped with clathrum (2), clathrum (2) is staggeredly made of the vertical line of the horizontal line and interval that are spaced；The blackboard body (1) Bottom is equipped with ash collection slot (3), and the side of ash collection slot (3) is connected by water filling switch (4), water pipe with water source, and another side bottom is logical Cross drainage switch (5), water pipe is connected with sewage vent line；The side of the blackboard body (1) is equipped with locking storage box (6), It is equipped with the different composite straightedge with protractor body (7) of more set sizes in locking storage box (6), the composite straightedge with protractor body (7) is isometric by two Thin ruler (7-1) and multiple vacuum chucks (7-2) are constituted；The side of two thin ruler (7-1) offers fixation hole, two thin rulers (7-1) is rotatably dispose on same vacuum chuck (7-2) by fixation hole, and fixation is set respectively for the other side of two thin ruler (7-1) It is equipped with a vacuum chuck (7-2)；Multiple spaced chalk insertions hole (7-11) are offered on the thin ruler (7-1).

2. a kind of blackboard for mathematical education according to claim 1, it is characterised in that the ash collection slot (3) is opposite It is obliquely installed in blackboard body (1), water filling side is higher than draining side 0.5-1.0cm.

3. a kind of blackboard for mathematical education according to claim 1, it is characterised in that the thin ruler (7-1) by Lightweight metal material is constituted, with a thickness of 2-4mm.

4. a kind of blackboard for mathematical education according to claim 1, it is characterised in that the locking storage box (6) Inside open up several horizontally-parallel settings, with the slots (6-1) of composite straightedge with protractor body (7) dimensional fits, composite straightedge with protractor body (7) by size according to Secondary arrangement is inserted in vertically in slot (6-1).

5. a kind of blackboard for mathematical education according to claim 1, it is characterised in that the clathrum (2) by with The dark-coloured blackboard paint for being different from blackboard color is constituted.