CN202517947U

CN202517947U - Multifunctional teaching tool for drawing

Info

Publication number: CN202517947U
Application number: CN2012201310590U
Authority: CN
Inventors: 王波; 朱小斌; 刘坤林; 廖禄海; 黄灏; 倪子田; 罗小琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-30
Filing date: 2012-03-30
Publication date: 2012-11-07
Anticipated expiration: 2022-03-30

Abstract

The utility model discloses a multifunctional teaching tool for drawing. The multifunctional teaching tool comprises a lower ruler sheet and an upper ruler sheet, wherein one ends of the lower ruler sheet and the upper ruler sheet are provided with pin shaft type locating connecting structures; the other ends of the lower ruler sheet and the upper ruler sheet are aligned with each other; chalk clamping structures are respectively arranged on the two aligned end surfaces; the multifunctional teaching tool further comprises a sub ruler and a sub ruler rotating seat; the sub ruler rotating seat and the upper ruler sheet are connected with each other by a T-shaped groove and fixed together by a pin; one end of the sub ruler is provided with a shaft head vertical to a sub ruler body; the shaft head is in shaft hole clearance with the sub ruler rotating seat; the other end of the sub ruler is aligned with the end part of the upper ruler sheet and provided with a stopping block; a slide groove is formed in the upper ruler sheet in a length direction of a ruler body of the upper ruler sheet; and a connecting piece is arranged between the sub ruler rotating seat and the slide groove. According to the utility model, actual problems in the traditional drawing teaching can be preferably solved; moreover, various lines and graphics can be accurately and rapidly drawn and standard teaching can be achieved.

Description

The multifunctional drawing teaching aid

Technical field

The utility model relates to a kind of teaching aid, relates in particular to a kind of drawing instrument.

Background technology

The teacher of specialty such as machinery, building is at professor's drawing course; Such as: courses such as descriptive geometry, mechanical drawing, Graphing of Engineering; Need on the blackboard in the classroom of being everlasting, demonstrate the technique of painting of various lines and figure, and the projection relation between each view of orthographic projection, make the student grasp object and reach conversion from solid-plane from plane-solid; Through the concept of space of setting up object fast with the aid of pictures, in above-mentioned teaching and training process repeatedly, often to use set square, compasses and ruler teaching aid.But existing these drawing instruments are not only bulky, and function singleness is not easy to carry; Simultaneously, also there is not special drawing instrument to the drafting of some angle lines and parallel lines, can only be by passing the parallel lines that set square obtain known line segment; But receive the limitation of blackboard area; Still can not reach teaching requirements, therefore, sometimes can only be with the free-hand drafting of teacher's experience.

The utility model content

To above-mentioned prior art, the utility model provides a kind of multifunctional drawing teaching aid, can solve the practical problem that runs in the existing drawing teaching preferably, not only can draw quickly and accurately various lines and figure, and can reach the teaching of standard.

In order to solve the problems of the technologies described above; The technical scheme that the utility model multifunctional drawing teaching aid is achieved is: comprise chi sheet and last chi sheet down; One end of said chi sheet down and last chi sheet is provided with pin type location draw bail; The other end alignment of said chi sheet down and last chi sheet is provided with the chalk clamp structure respectively on the both ends of the surface of this alignment; Also comprise a secondary chi and secondary chi rotating seat, said secondary chi rotating seat adopts T-slot to be connected with said going up between the chi sheet, adopt pin fixing; One end of said secondary chi is provided with and the vertical spindle nose of secondary chi blade, is the axis hole matched in clearance between this spindle nose and the said secondary chi rotating seat, the other end of said secondary chi and the said end part aligning that goes up the chi sheet, and be provided with block; Said its blade length direction of chi sheet upper edge of going up is provided with a chute, is provided with connector between said secondary chi rotating seat and the chute.

The utility model multifunctional drawing teaching aid, wherein, said pin type location draw bail comprises screw rod, pad and fastening locknut, said screw rod and said chi sheet down are structure as a whole.

Said down chi sheet is provided with one along push-and-pull chi movably on its blade length direction, and the employing T-slot is connected between said chi sheet down and the said push-and-pull chi, and fixes with jackscrew.

Be positioned at said chi sheet down and said bearing pin connecting portion place of going up the chi sheet, be provided with the angle groove at said this position of chi sheet down, the said position that aligns on the chi sheet of going up is provided with a form.

Blade edge at following chi sheet, following chi sheet and secondary chi is provided with graduation mark respectively.

Compared with prior art, the beneficial effect of the utility model is:

The utility model multifunctional drawing teaching aid is simple in structure, combined and instant, and the amount of having is drawn angle, draws straight line, draws circle (circular arc) and measures picture, draws the multinomial drawing function of the parallel lines of different spacing.

Description of drawings

Fig. 1-1 is to Fig. 1-the 6th, the relevant view of the utility model multifunctional drawing teaching aid, wherein: Fig. 1-the 1st, front view, Fig. 1-2 are right views; Fig. 1-the 3rd, left view; Fig. 1-the 4th, vertical view; Fig. 1-the 5th, upward view, Fig. 1-the 6th, rearview;

Fig. 2-1 is to Fig. 2-the 2nd, the sketch map in the utility model during amount picture angle, and Fig. 2-1 is 0 ° of angle sketch map, Fig. 2-2 is 90 ° of angle sketch mapes;

Fig. 3 is the exploded view of pin type location draw bail in the utility model;

Fig. 4-the 1st, the front view of secondary chi rotating seat in the utility model;

Fig. 4-the 2nd, the side view of secondary chi rotating seat shown in Fig. 4-1;

Fig. 5-1 is to Fig. 5-the 3rd, and amount is drawn the sketch map of circular arc or circle, wherein: Fig. 5-the 1st, the chi sheet closes up up and down, Fig. 5-the 2nd, amount is drawn the small radii circle, Fig. 5-the 3rd, amount is drawn than the long radius circle;

Fig. 6-1 is to Fig. 6-the 4th, the view when drawing straight line or parallel lines with the utility model multifunctional drawing teaching aid; Wherein: Fig. 6-the 1st, the picture straight line, Fig. 6-the 2nd opens the chi sheet, Fig. 6-the 3rd, the picture straight line, Fig. 6-the 4th, the moving sets chi draws parallel lines;

Fig. 7-1 is to Fig. 7-the 7th, associated components stereogram in the utility model, and wherein: Fig. 7-1 and Fig. 7 the-the 2nd, upper and lower chi sheet and secondary chi assembly drawing, Fig. 7-3 and Fig. 7 the-the 4th, following chi sheet sketch map; Fig. 7-the 5th, last chi sheet sketch map; Fig. 7-the 6th, secondary chi sketch map, Fig. 7-the 7th, push-and-pull chi sketch map

The specific embodiment

Below in conjunction with the specific embodiment the utility model is done to describe in further detail.

To shown in Fig. 1-6, the utility model multifunctional drawing teaching aid comprises chi sheet 1 and last chi sheet 2 down like Fig. 1-1; One end of said chi sheet 1 down and last chi sheet 2 is provided with pin type location draw bail 3; Said pin type location draw bail 3 comprises screw rod, pad 32 and fastening locknut 31, and is as shown in Figure 3, and said screw rod and said chi sheet 1 down are structure as a whole; Shown in superfluous 7-1 and Fig. 7-3; The other end alignment of said chi sheet 1 down and last chi sheet 2 is provided with the chalk clamp structure respectively on the both ends of the surface of this alignment, the taper axis hole that is connected between said chalk clamp structure and last chi sheet or the following chi sheet closely cooperates.The utility model multifunctional drawing teaching aid also comprises a secondary chi 4 and secondary chi rotating seat 8, and said secondary chi rotating seat 8 adopts T-slot to be connected with said going up between the chi sheet 2, adopt pin fixing, shown in Fig. 4-1 and Fig. 4-2; One end of said secondary chi 4 is provided with and the vertical spindle nose of secondary chi blade, shown in Fig. 7-6, is the axis hole matched in clearance between this spindle nose and the said secondary chi rotating seat 8, the other end of said secondary chi 4 and the said end part aligning that goes up chi sheet 2, and be provided with block 9; Said its blade length direction of chi sheet 2 upper edges of going up is provided with a chute 21; Shown in Fig. 7-5; Be provided with connector 24 between said secondary chi rotating seat 8 and the chute 21, shown in Fig. 7-2, said down chi sheet 1 is provided with one along push-and-pull chi 5 movably on its blade length direction; The employing T-slot is connected between said down chi sheet 1 and the said push-and-pull chi 5, and fixes with jackscrew.Be positioned at said chi sheet 1 down and said bearing pin connecting portion place of going up chi sheet 2, be provided with the angle groove at said this position of chi sheet 1 down, the said position that aligns on the chi sheet 2 of going up is provided with a form 10.Blade edge at following chi sheet 1, following chi sheet 2 and secondary chi 4 is provided with graduation mark respectively.

When upper and

lower chi

1,2 was grouped together, the angle scale number of degrees on the following sheet chi 1 can show in the form 10 of last chi 2; Shown in Fig. 2-1 and Fig. 2-2, when being shown as the angle that needs, the fastening locknut 31 on the top of screwing; With fixed angle, so that other follow-up operations.

When utilizing the utility model multifunctional drawing teaching aid to draw short line segment, the scale amount of carrying out on the drawing rule capable of using is drawn, in the time will drawing longer line segment; Can be with playing the push-and-pull chi 5 on the chi sheet 1 to pull out; Draw, in conjunction with 1-5 with the aid of pictures, Fig. 7-3, Fig. 7-4 and Fig. 7-7, move the push-and-pull chi to appropriate length after; Fix with jackscrew, so that follow-up operation.

When needing picture circle, circular arc and use amount to draw function, two chalk clampers are respectively charged in the taper hole of last chi sheet and following chi sheet fix, adjust the angle of two chi sheets after; The fastening locknut of screwing is fixed, and draws, and can draw the circle of different radii; And can be used to measure the different length line segment; To satisfy the amount picture functional requirement in the drawing work, carry out corresponding drafting, shown in Fig. 2-1, Fig. 2-2, Fig. 5-1, Fig. 5-2 and Fig. 5-3.

Unscrew connector 24, fixing behind moving sets chi 4 to the correct position in chute 21, revolute chi 4 make it with last chi sheet be square position and fixing, said process can the section of drawing parallel lines repeatedly, as Fig. 6-1, Fig. 6-2, Fig. 6-3 and Fig. 6-4 not.

To sum up, the utility model multifunctional drawing teaching aid amount of having is drawn angle, draws straight line, draws circle (circular arc) and measures picture, draws the multinomial drawing function of the parallel lines of different spacing.

Although top combination figure is described the utility model; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the utility model.

Claims

1. a multifunctional drawing teaching aid comprises chi sheet (1) and last chi sheet (2) down, it is characterized in that:

One end of said chi sheet (1) down and last chi sheet (2) is provided with pin type location draw bail (3), and the other end alignment of said chi sheet (1) down and last chi sheet (2) is provided with the chalk clamp structure respectively on the both ends of the surface of this alignment;

Also comprise a secondary chi (4) and secondary chi rotating seat (8), said secondary chi rotating seat (8) adopts T-slot to be connected with said going up between the chi sheet (2), adopt pin fixing; One end of said secondary chi (4) is provided with and the vertical spindle nose of secondary chi blade, is the axis hole matched in clearance between this spindle nose and the said secondary chi rotating seat (8), the other end of said secondary chi (4) and the said end part aligning that goes up chi sheet (2), and be provided with block (9); Said its blade length direction of chi sheet (2) upper edge of going up is provided with a chute (21), is provided with connector (24) between said secondary chi rotating seat (8) and the chute (21).

2. according to the said multifunctional drawing teaching aid of claim 1, it is characterized in that: said pin type location draw bail (3) comprises screw rod, pad (32) and fastening locknut (31), and said screw rod and said chi sheet (1) down are structure as a whole.

3. according to the said multifunctional drawing teaching aid of claim 1; It is characterized in that: said down chi sheet (1) is provided with one along push-and-pull chi (5) movably on its blade length direction; The employing T-slot is connected between said down chi sheet (1) and the said push-and-pull chi (5), fixes with jackscrew.

4. according to the said multifunctional drawing teaching aid of claim 1; It is characterized in that: be positioned at said chi sheet (1) down and said bearing pin connecting portion place of going up chi sheet (2); Be provided with the angle groove at said this position of chi sheet (1) down, the said position that aligns on the chi sheet (2) of going up is provided with a form (10).

5. according to the said multifunctional drawing teaching aid of claim 1, it is characterized in that: the blade edge at following chi sheet (1), following chi sheet (2) and secondary chi (4) is provided with graduation mark respectively.

6. according to the said multifunctional drawing teaching aid of claim 1, it is characterized in that: the taper axis hole that is connected between said chalk clamp structure and last chi sheet or the following chi sheet closely cooperates.