CN214752453U

CN214752453U - Supplementary show teaching aid of primary school's mathematics three views

Info

Publication number: CN214752453U
Application number: CN202121275467.9U
Authority: CN
Inventors: 杨元超; 谭远浪; 张小清; 刘晓梅; 张滢
Original assignee: Chongqing University of Education
Current assignee: Chongqing University of Education
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-16
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a supplementary show teaching aid of primary school's mathematics three views, include: the transmission case is fixedly arranged above the base; a transmission gear connected to the inside of the transmission case; the placing frame is arranged above the transmission case; the deflector rod is fixed above the transmission gear; the poking groove is arranged at the front end of the transmission case; a projection panel installed at a left side of the rack; the projection lamp is arranged on the right side of the placing rack; a moving sleeve connected to the outside of the projection lamp. This supplementary show teaching aid of three views of primary school's mathematics compares with current device, can adjust the angle of rack through drive gear, rotates it to required view angle, through the flexible cooperation of telescopic link with the centre gripping stake, can be convenient for adjust the interval between centre gripping stake and the rack to can carry out the centre gripping to it through the centre gripping stake according to the height of teaching aid.

Description

Supplementary show teaching aid of primary school's mathematics three views

Technical Field

The utility model relates to a teaching aid technical field specifically is a supplementary show teaching aid of primary school's mathematics three-view.

Background

The three views can correctly reflect orthographic projection engineering drawings (three basic views, namely a main view, a top view and a left view) of the length, the width and the height of an object, one view can only reflect the shape of one direction of the object and cannot completely reflect the structural shape of the object, the three views are the results of projecting the same object from three different directions, the formation of the three views and the projection rule of a point-line plane are the theoretical basis for reading and drawing mechanical patterns, and if the content is not completely understood, the study of the subsequent content of a course is seriously influenced;

the three-view auxiliary display teaching aid for primary school mathematics can only display the view of one face of the teaching aid generally, and can not display the three views of the teaching aid and the three-dimensional model, so that the teaching effect is unsatisfactory, the learning efficiency of students is low, and therefore the three-view auxiliary display teaching aid for primary school mathematics is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a supplementary show teaching aid of three views of primary school's mathematics to propose in solving above-mentioned background art because the supplementary show teaching aid of three views of current primary school's mathematics can only carry out the view show of a face to the teaching aid usually, can't carry out the show of three views to the three views of teaching aid and three-dimensional model, lead to the teaching effect unsatisfactory, the problem that student's learning efficiency is low.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a supplementary show teaching aid of primary school's mathematics three views, includes:

the transmission case is fixedly arranged above the base;

a transmission gear connected to the inside of the transmission case;

the placing frame is arranged above the transmission case;

the deflector rod is fixed above the transmission gear;

the poking groove is arranged at the front end of the transmission case;

a projection panel installed at a left side of the rack;

the projection lamp is arranged on the right side of the placing rack;

a moving sleeve connected to the outside of the projection lamp.

Preferably, a rotating structure is formed between the transmission gear and the transmission box, and the transmission gear and the placing frame are parallel to each other.

Preferably, the toggle groove is further provided with:

the magnetic absorption pads are connected to the left side and the right side of the poking groove, and the poking rod is made of iron.

Preferably, the base is further provided with:

the mounting groove, its inside of seting up at the place base, the mounting groove is provided with two, and mounting groove and the mutual block of projection panel.

Preferably, the rack still is equipped with:

the telescopic rods are connected above the placing frame and are symmetrically distributed about the vertical center line of the placing frame.

Preferably, the telescopic link still is equipped with:

and the clamping pile is connected above the telescopic rod, and a stretching structure is formed between the clamping pile and the telescopic rod.

Preferably, the clamping pile is further provided with:

and the anti-skidding paster is arranged on the inner side of the clamping pile and is tightly attached to the clamping pile.

Compared with the prior art, the utility model provides a supplementary show teaching aid of primary school's mathematics three views possesses following beneficial effect: this supplementary show teaching aid of three views of primary school's mathematics can make and carry out relative rotation between base and the drive gear through the bearing to can adjust the angle of rack, and then can adjust the angle of teaching aid on the rack, rotate it to required view angle.

1. The utility model discloses a driving lever can rotate drive gear to can drive the rack and rotate, and then can adjust the angle of teaching aid on the rack, rotate it to required view angle, can attract each other with the driving lever of iron through the magnetism pad of inhaling, thereby can fix the rack angle after rotating, avoided current primary school's mathematics three-view to assist the show teaching aid, can only carry out the view show of one side to the teaching aid usually, can't carry out the show of three views to the three-dimensional model and the three-dimensional model of teaching aid, lead to the teaching effect unsatisfactory, the problem that student's learning efficiency is low;

2. the utility model discloses a mounting groove can be convenient for adjust the position of projection panel to can adjust the size of projection, the rack can be convenient for treat show teaching aid and place, through the flexible cooperation of telescopic link and centre gripping stake, can be convenient for adjust the interval between centre gripping stake and the rack, thereby can carry out the centre gripping to the height of teaching aid through the centre gripping stake according to it, thereby can guarantee the fastness that the teaching aid was placed;

3. the utility model discloses an inseparable degree between centre gripping stake and the teaching aid can be increased to anti-skidding paster to can reach skid-proof effect, and then can improve its steadiness.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the external structure of the transmission case of the present invention;

fig. 3 is a schematic top view of the transmission gear of the present invention;

fig. 4 is a schematic structural view of the rack of the present invention.

In the figure: 1. a base; 2. a transmission gear; 3. a transmission case; 4. a projection panel; 5. placing a rack; 6. clamping the pile; 7. anti-skid paster; 8. a telescopic rod; 9. a projection lamp; 10. moving the sleeve; 11. mounting grooves; 12. a deflector rod; 13. a poking groove; 14. a magnetic attraction pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 3 and 4, a teaching aid for three-view auxiliary display of primary mathematics includes: the device comprises a base 1, wherein a transmission case 3 is fixedly arranged above the base 1; the mounting grooves 11 are formed in the base 1, two mounting grooves 11 are formed in the mounting grooves 11, and the mounting grooves 11 are clamped with the projection panel 4; a rotating structure is formed between the transmission gear 2 and the transmission box 3, and the transmission gear 2 and the placing rack 5 are parallel to each other; a transmission gear 2 connected to the inside of the transmission case 3; a rack 5 installed above the transmission case 3; a shift lever 12 fixed above the transmission gear 2; the driving gear 2 can be driven to rotate through the driving lever 12, so that the angle of the placing frame 5 can be adjusted, the angle of a teaching aid on the placing frame 5 can be adjusted, and the teaching aid can be rotated to a required view angle; the telescopic rods 8 are connected above the placing rack 5, and the telescopic rods 8 are symmetrically distributed around the vertical center line of the placing rack 5; the clamping pile 6 is connected above the telescopic rod 8, and a stretching structure is formed between the clamping pile 6 and the telescopic rod 8; the placement of the to-be-displayed teaching aid can be facilitated through the placement frame 5, the distance between the clamping pile 6 and the placement frame 5 can be conveniently adjusted through the telescopic matching of the telescopic rod 8 and the clamping pile 6, so that the teaching aid can be clamped through the clamping pile 6 according to the height of the teaching aid, and the firmness of the placement of the teaching aid can be guaranteed; the anti-skid paster 7 is arranged on the inner side of the clamping pile 6, and the anti-skid paster 7 is tightly attached to the clamping pile 6; the tightness between the clamping pile 6 and the teaching aid can be increased through the anti-skidding paster 7, so that the anti-skidding effect can be achieved, and the stability of the anti-skidding paster can be improved; a projection lamp 9 installed at the right side of the rack 5; and a movable sleeve 10 connected to the outside of the projection lamp 9.

Referring to fig. 2, a teaching aid for three-view auxiliary display of primary mathematics includes: a toggle groove 13 is arranged at the front end of the transmission case 3; magnetic absorption pads 14 connected to the left and right sides of the toggle groove 13, and the toggle lever 12 is made of iron; inhale through magnetism and fill up 14 can with the mutual actuation of the driving lever 12 of iron to can fix the rack 5 angle after rotating, avoid current primary school's mathematics three views supplementary show teaching aid, can only carry out the view show of a face to the teaching aid usually, can't carry out the show of three views to the three views of teaching aid and three-dimensional model, lead to the teaching effect unsatisfactory, the problem that student's learning efficiency is low.

The working principle is as follows: when the teaching aid is used for assisting in showing teaching aids in three views of primary mathematics, firstly, the base 1 plays a bearing effect on the device, the device is placed in a required place during use, then the teaching aid to be shown is placed above the placing frame 5, the clamping pile 6 is moved downwards through the telescopic rod 8 until the teaching aid is firmly clamped inside the placing frame 5 through the matching of the clamping pile 6 and the placing frame 5, at the moment, the tightness between the clamping pile 6 and the teaching aid is increased through the anti-skidding paster 7, so that the anti-skidding effect can be achieved, the clamping stability of the teaching aid is improved, and the situation that the teaching aid is unstable or falls off in the showing process is prevented; secondly, the height of the projection lamp 9 is adjusted, the projection lamp 9 can be driven to move synchronously by moving the movable sleeve 10 up and down until the projection lamp 9 is adjusted to a proper position, the projection panel 4 is installed as required, a proper installation groove 11 is selected, the projection panel 4 is inserted into the installation groove 11, when the side view of the teaching aid is displayed, the projection lamp 9 is started, the projection lamp 9 can project the projection of the teaching aid onto the projection panel 4, and at the moment, the side view of the teaching aid can be displayed according to the projection panel 4; then, when the front view of the teaching aid needs to be displayed, the driving rod 12 rotates the transmission gear 2 in the transmission box 3, so that the placing frame 5 can be driven to rotate, the driving rod 12 moves to the leftmost side of the shifting groove 13, the rotation is 90 degrees at the moment, the magnetic absorption pad 14 and the iron driving rod 12 are mutually attracted, the angle of the rotated placing frame 5 can be fixed, and the front projection of the teaching aid can be projected onto the projection panel 4 by using the projection lamp 9; at last when needing to demonstrate the plan view of teaching aid, take off the teaching aid and overturn 90 after again with its centre gripping on rack 5, use projection lamps and lanterns 9 with the overlooking projection of teaching aid throw to projection panel 4 on can, avoid three views projection show teaching aid can only carry out the view show of a face to the teaching aid, can't carry out the show of three views to the three views of teaching aid and the stereomodel, it is unsatisfactory to lead to the teaching effect, the problem of student learning inefficiency, this is exactly this elementary school mathematics three views assistance show teaching aid's theory of operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a supplementary show teaching aid of three views of primary school's mathematics which characterized in that includes:

the device comprises a base (1), wherein a transmission case (3) is fixedly arranged above the base (1);

a transmission gear (2) connected to the inside of the transmission case (3);

a rack (5) mounted above the transmission case (3);

a shift lever (12) fixed above the transmission gear (2);

a toggle groove (13) which is arranged at the front end of the transmission case (3);

a projection panel (4) mounted on the left side of the rack (5);

a projection lamp (9) mounted on the right side of the rack (5);

a moving sleeve (10) connected to the outside of the projection lamp (9).

2. The primary school mathematics three-view auxiliary display teaching aid of claim 1, characterized in that a rotation structure is formed between said transmission gear (2) and transmission box (3), and said transmission gear (2) and placing frame (5) are parallel to each other.

3. An auxiliary three-view demonstration teaching aid for primary school mathematics according to claim 1, wherein said striking groove (13) is further provided with:

and the magnetic absorption pads (14) are connected to the left side and the right side of the shifting groove (13), and the shifting rod (12) is made of iron.

4. The primary school mathematics three-view auxiliary display teaching aid of claim 1, characterized in that: the base (1) is also provided with:

mounting groove (11), its offer in the inside of place base (1), mounting groove (11) are provided with two, and mounting groove (11) and projection panel (4) block each other.

5. The three-view auxiliary display teaching aid for primary school mathematics according to claim 1, wherein said rack (5) is further provided with:

the telescopic rods (8) are connected above the placing rack (5), and the telescopic rods (8) are symmetrically distributed about the vertical center line of the placing rack (5).

6. The three-view auxiliary display teaching aid for primary school mathematics according to claim 5, wherein said telescopic rod (8) is further provided with:

and the clamping pile (6) is connected above the telescopic rod (8), and a stretching structure is formed between the clamping pile (6) and the telescopic rod (8).

7. An auxiliary display teaching aid of elementary school mathematics with three views according to claim 6, characterized in that said holding peg (6) is further provided with:

and the anti-skidding paster (7) is arranged on the inner side of the clamping pile (6), and the anti-skidding paster (7) is tightly attached to the clamping pile (6).