CN221315609U

CN221315609U - Novel teaching demonstration ruler

Info

Publication number: CN221315609U
Application number: CN202323091805.5U
Authority: CN
Inventors: 凌金明; 吴振平
Original assignee: Individual
Current assignee: Individual
Filing date: 2023-11-16
Publication date: 2024-07-12
Anticipated expiration: 2033-11-16

Abstract

The utility model discloses a novel teaching demonstration ruler, in particular to the field of mathematics teaching aids, which comprises a main ruler, wherein a measuring angle plate is arranged at one end of the rear side of the main ruler, a fixing rod is fixedly connected to the front side of the measuring angle plate, a limiting disc is fixedly sleeved on the fixing rod, a pull ruler and a right angle plate are arranged on the front side of the main ruler, a limiting block is fixedly connected to one end of the pull ruler, and a chalk hole is formed in the middle of the limiting block. According to the utility model, the included angle of a horizontal straight line or a fixed angle can be conveniently drawn through the matching of the main ruler and the angle measuring plate, the teaching ruler is convenient to use, the teaching ruler has the corresponding functions of the ruler, the triangle and the angle measuring device, the chalk is inserted into the middle part of the chalk hole, the teaching ruler can be conveniently used as a compass to draw a circle with a fixed diameter on a blackboard, and an arc with a fixed angle can be drawn through the matching of the teaching ruler and the angle measuring plate, so that the functions of various teaching aids are concentrated, the teaching ruler is convenient to carry and use, and the use effect is improved.

Description

Novel teaching demonstration ruler

Technical Field

The utility model relates to the technical field of mathematical teaching aids, in particular to a novel teaching demonstration ruler.

Background

In mathematical classroom teaching, a teacher often uses a ruler, a set square, a compass, a protractor and other mathematical teaching aids, and the teaching ruler is an essential tool for the teacher to carry out teaching work, but different requirements in actual work require different rulers, sometimes a plurality of types of rulers are needed for drawing a graph, and each type of ruler has single function, so that the teaching ruler is too complicated in variety;

The utility model of Chinese patent application number CN202220358218.4 discloses a teaching ruler for mathematical education, which comprises a first straight plate, wherein the first straight plate is provided with an arc block, the bottom of the first straight plate is provided with a clamping plate groove, the side surface of the clamping plate groove is provided with a through hole, one end of the first straight plate, which is close to the arc block, is provided with a second straight plate, one end of the second straight plate is provided with an arc groove, the bottom of the second straight plate is provided with a clamping plate, a connecting device is arranged between the first straight plate and the second straight plate.

But when in actual use, the prior teaching ruler is mostly in a structure with a folded and unfolded middle part, thereby realizing the functions of drawing angles and increasing the length, but the prior teaching ruler still has the defects that the circular shape with the fixed diameter is inconvenient to draw, the circular arc with the fixed angle cannot be drawn, and the prior teaching ruler is inconvenient to use.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides a novel teaching demonstration ruler for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel teaching demonstration ruler comprises a main ruler, wherein a measuring angle plate is arranged at one end of the rear side of the main ruler, a fixing rod is fixedly connected to the front side of the measuring angle plate, a limiting disc penetrates through the main ruler and is fixedly sleeved with the fixing rod, a pull ruler and a right angle plate are arranged on the front side of the main ruler, a limiting block is fixedly connected to one end of the pull ruler, and a chalk hole is formed in the middle of the limiting block;

It can be seen that the angle measuring plate can be limited on one side of the main ruler through the fixing rod and the limiting disc, the angle measuring plate and the main ruler can be rotated, the use effect is improved, the angle measuring plate can be fixed through the fixing rod, the right angle can be conveniently and directly drawn and used when the right angle is required to be drawn through the set right angle plate, the movement of the main ruler can be limited through the limiting block, the chalk is limited and fixed through the chalk Kong Fangbian, and the use effect is improved;

The middle part of the main ruler is provided with a sliding hole, the rear side of the sliding hole is provided with a sliding groove, one end of the pull ruler is inserted with a threaded rod in a threaded manner, the rear end of the threaded rod is rotationally connected with a limit sliding block, the front end of the threaded rod is fixedly connected with a rotating block, the rear side of the pull ruler is provided with a limit sliding groove, and one end of a measuring angle plate at one end of the front side of the main ruler is fixedly connected with a fixing block;

It can be seen that the sliding rod and the limiting slide block are matched with the slide hole and the slide groove, so that the sliding rule can horizontally slide on one side of the main rule, and the rotating block can drive the main rule to extrude the main rule through the threaded rod, so that the position of the sliding rule on one side of the main rule is fixed, the use effect is improved, the sliding rule can be limited in horizontal movement through the matched fixing block and the limiting slide groove, the stability of the sliding rule in horizontal movement is improved, and the use effect is improved;

A plurality of positioning jacks are formed in one end, close to the angle measuring plate, of the main scale, a positioning inserting rod is fixedly connected to one side of the angle measuring plate, an anti-slip sticking block is arranged on the rear side of the angle measuring plate, and a liquid horizontal pipe is fixedly connected to the bottom of the main scale;

It can be seen that the cooperation of the positioning jack and the positioning inserted link that set up is convenient to install fixedly the right-angle plate to adjust the angle of volume angle plate and main scale, improve the result of use, and can improve the laminating intensity of volume angle plate and blackboard through the anti-skidding piece that sets up, improve the result of use.

Preferably, the top parts of the front sides of the main scale and the pull scale are respectively provided with a first graduated scale and a second graduated scale, and the limiting block is arranged on one side of the main scale;

It can be seen that through the first graduated scale and the second graduated scale that set up, can conveniently draw fixed length, improve the result of use to through the stopper, can make stopper and blackboard laminate mutually, improve the result of use.

Preferably, the front end of the limiting block is fixedly connected with a stabilizing ring, the diameter of an inner cavity of the stabilizing ring is the same as that of the chalk hole, and the stabilizing ring and the chalk hole are positioned on the same axis;

It can be seen that the chalk can be limited through the stabilizing ring, the stability of the chalk is improved, and the chalk can be fixed through the chalk hole, so that the chalk is convenient to draw circles.

Preferably, the threaded rod penetrates through the middle of the sliding hole and is in sliding connection with the sliding hole, the limit sliding block is matched with the sliding groove, and the limit sliding block is arranged in the middle of the sliding groove;

It can be seen that the rotating block can control the limiting sliding block to extrude the main ruler through the threaded rod, so that the limiting sliding block is fixed at the inner position of the sliding groove, the stretching length of the pulling ruler is limited and fixed, and the using effect is improved.

Preferably, the cross section of the fixed block is in a T shape, the fixed block is matched with the limiting chute, and the fixed block is arranged in the middle of the limiting chute;

It can be seen that the horizontal movement of the pull rule can be limited through the cooperation of the fixed block and the limiting chute, and the use effect is improved.

Preferably, the positioning inserting rod is matched with the positioning inserting hole, one end of the positioning inserting rod is inserted into the middle part of the positioning inserting hole, and the number of the anti-skid sticking blocks is multiple;

It can be seen that through the cooperation of location inserted bar and location jack, can place perpendicularly or the level is placed the right-angle plate, conveniently be connected right-angle plate and main scale to can improve the laminating intensity of volume angle plate and blackboard through anti-skidding subsides piece, avoid drawing the effect because of the slip influences in drawing the in-process.

The utility model has the technical effects and advantages that:

According to the utility model, the included angle of a horizontal straight line or a fixed angle can be conveniently drawn through the matching of the main ruler and the angle measuring plate, so that the teaching ruler is convenient to use, has the corresponding functions of the ruler, the triangle and the angle measuring device, can be conveniently used as a compass to draw a circle with a fixed diameter on a blackboard through inserting the chalk into the middle part of the chalk hole, and can draw an arc with a fixed angle through matching with the angle measuring plate, so that the functions of various teaching aids are concentrated, the teaching ruler is convenient to carry and use, and the use effect is improved;

The utility model also enables the limit sliding block to slide in the chute by rotating the rotating block and sliding the pull rule, so that the whole length of the teaching aid can be adjusted, the connection stability of the pull rule and the main rule can be improved by matching the fixed block with the limit chute, the limit sliding block is driven by the rotating block to extrude the main rule, the moving length of the pull rule can be limited and fixed, the use effect is improved, the installation stability of the chalk can be improved by the stabilizing ring, and the use effect is improved;

To sum up, through the mutual influence of above-mentioned a plurality of effects, can concentrate the effect of multiple teaching aid together, avoid teaching instrument's repeated setting and extravagant, conveniently flexible regulation carries the use, improves result of use.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of the unfolded structure of the present utility model.

Fig. 3 is a schematic view of the unfolded rear view structure of the present utility model.

FIG. 4 is a schematic diagram of the detachable structure of the right angle plate, the main ruler and the measuring angle plate of the utility model.

Fig. 5 is a schematic structural view of the pull rule of the present utility model.

The reference numerals are: 1. a main scale; 2. measuring angle plates; 3. pulling a ruler; 4. a fixed rod; 5. a limiting disc; 6. a first scale; 7. a second scale; 8. a slide hole; 9. a chute; 10. a threaded rod; 11. a limit sliding block; 12. a rotating block; 13. a liquid level tube; 14. a limiting block; 15. a chalk hole; 16. a stabilizing ring; 17. a fixed block; 18. limiting sliding grooves; 19. positioning the jack; 20. a right angle plate; 21. positioning the inserted link; 22. anti-skid sticking blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The novel teaching demonstration ruler shown in the attached drawings 1-5 comprises a main ruler 1, wherein a protractor plate 2 is arranged at one end of the rear side of the main ruler 1, a fixing rod 4 is fixedly connected to the front side of the protractor plate 2, a limiting disc 5 is fixedly sleeved on the fixing rod 4 penetrating through the main ruler 1, a pull ruler 3 and a right angle plate 20 are arranged on the front side of the main ruler 1, a limiting block 14 is fixedly connected to one end of the pull ruler 3, and a chalk hole 15 is formed in the middle of the limiting block 14;

The slide way 8 has been seted up at the middle part of main scale 1, slide way 9 has been seted up to the rear side of slide way 8, the one end screw thread of sliding scale 3 has been inserted and has been equipped with threaded rod 10, the rear end rotation of threaded rod 10 is connected with spacing slider 11, the front end fixedly connected with rotor 12 of threaded rod 10, spacing spout 18 has been seted up to the rear side of sliding scale 3, the one end fixedly connected with fixed block 17 of the front side one end measurement scute 2 of main scale 1, a plurality of location jacks 19 have been seted up to the one end that main scale 1 is close to measurement scute 2, one side fixedly connected with location inserted bar 21 of the right-angle plate 20, the rear side of measurement scute 2 is provided with anti-skidding subsides piece 22, the bottom fixedly connected with liquid level pipe 13 of main scale 1.

As shown in fig. 1-5, the top of the front sides of the main scale 1 and the pull scale 3 are respectively provided with a first scale 6 and a second scale 7, the limiting block 14 is arranged at one side of the main scale 1, the front end of the limiting block 14 is fixedly connected with a stabilizing ring 16, the inner cavity diameter of the stabilizing ring 16 is the same as the diameter of a chalk hole 15, the stabilizing ring 16 and the chalk hole 15 are on the same axis, a threaded rod 10 penetrates through the middle part of the slide hole 8 and is in sliding connection with the slide hole 8, a limiting slide block 11 is matched with a slide groove 9, the limiting slide block 11 is arranged in the middle part of the slide groove 9, the section of the fixing block 17 is in a T shape, the fixing block 17 is matched with a limiting slide groove 18, the fixing block 17 is arranged in the middle part of the limiting slide groove 18, a positioning inserting rod 21 is matched with a positioning inserting hole 19, one end of the positioning inserting rod 21 is inserted into the middle part of the positioning inserting hole 19, the number of the anti-slip adhesion blocks 22 is multiple, so that the main scale 1 can be horizontally placed conveniently through attaching the angle measuring plate 2 onto the blackboard through a liquid horizontal pipe 13, the angle plate 1 can be attached to the main scale 1 through pressing the fixing rod 4 by the adhesion blocks 22, the adhesion quantity of the main scale 2 can be improved through the adhesion quantity of the adhesion blocks 22, the sliding angle plate 2 can be prevented from being rotated, the main scale 1 can be observed through the main scale, the effect can be observed through the observation effect, and the main scale 1 can be improved, and the effect can be observed by the effect by observing the main scale through the rotation angle through the effect;

And through inserting the chalk in the inside of chalk hole 15, can rotate main scale 1 and drive the rotation of pull chi 3 after measuring angle board 2 position fixing, the circular of different diameters is convenient to draw, facilitate the use, and improve the stability of chalk through stabilizing ring 16, through rotating rotary block 12 and horizontal migration pull chi 3, can make spacing slider 11 slide in the inside of spout 9, rotate rotary block 12 control spacing slider 11 and extrude main scale 1, can fix the shift position of pull chi 3, improve the result of use, and through the cooperation of fixed block 17 and spacing spout 18 that sets up, can improve the stability of pull chi 3 horizontal migration, improve the result of use.

The working principle of the utility model is as follows: when the device is used, a circle with a fixed length is required to be drawn, only the rotating block 12 is required to be rotated and the pull rule 3 is required to be pulled, the fixed length of the pull rule 3 is adjusted by observing the first scale 6 and the second scale 7, the rotating block 12 is rotated to fix the position of the pull rule 3, the supporting length is convenient to adjust, then the angle measuring plate 2 is attached to a blackboard, the fixing rod 4 is pressed, chalk is inserted into the middle part of the chalk hole 15, and the main scale 1 and the angle measuring plate 2 are driven to rotate by taking the fixing rod 4 as an axis, so that the circle can be drawn;

When a right angle is required to be drawn, the right angle plate 20 is only required to be vertically arranged with the main scale 1, and the right angle plate 20 can be directly drawn through the included angle between the right angle plate 20 and the main scale 1, so that the use effect is improved;

When the required angle needs to be drawn, the main scale 1 needs to be horizontally placed, the liquid horizontal pipe 13 is observed, the levelness of the main scale 1 is adjusted, then a horizontal straight line is drawn at the top of the main scale 1, then the fixing rod 4 is pressed to rotate the main scale 1, the main scale 1 is rotated to the required angle through the cooperation with the angle measuring plate 2, then the drawing of the straight line can be completed, the using effect is improved, and the drawing of the graph is convenient for teaching demonstration.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. Novel teaching demonstration chi, including main scale (1), its characterized in that: the chalk comprises a main scale (1), wherein a protractor plate (2) is arranged at one end of the rear side of the main scale (1), a fixed rod (4) is fixedly connected to the front side of the protractor plate (2), a limit disc (5) is fixedly sleeved on the fixed rod (4) penetrating through the main scale (1), a pull scale (3) and a right angle plate (20) are arranged on the front side of the main scale (1), a limit block (14) is fixedly connected to one end of the pull scale (3), and a chalk hole (15) is formed in the middle of the limit block (14);

The novel ruler is characterized in that a sliding hole (8) is formed in the middle of the main ruler (1), a sliding groove (9) is formed in the rear side of the sliding hole (8), a threaded rod (10) is inserted into one end of the pull ruler (3) in a threaded mode, a limit sliding block (11) is connected to the rear end of the threaded rod (10) in a rotating mode, a rotating block (12) is fixedly connected to the front end of the threaded rod (10), a limit sliding groove (18) is formed in the rear side of the pull ruler (3), and a fixing block (17) is fixedly connected to one end of a measuring angle plate (2) at one end of the front side of the main ruler (1);

A plurality of positioning jacks (19) are formed in one end, close to the measuring angle plate (2), of the main scale (1), one side of the right angle plate (20) is fixedly connected with a positioning inserting rod (21), an anti-slip sticking block (22) is arranged on the rear side of the measuring angle plate (2), and a liquid horizontal pipe (13) is fixedly connected to the bottom of the main scale (1).

2. The novel teaching demonstration ruler according to claim 1, wherein: the front side top of main scale (1) and pull rod (3) is provided with first scale (6) and second scale (7) respectively, stopper (14) set up in one side of main scale (1).

3. The novel teaching demonstration ruler according to claim 1, wherein: the front end of the limiting block (14) is fixedly connected with a stabilizing ring (16), the diameter of an inner cavity of the stabilizing ring (16) is the same as that of the chalk hole (15), and the stabilizing ring (16) and the chalk hole (15) are arranged on the same axial center.

4. The novel teaching demonstration ruler according to claim 1, wherein: the threaded rod (10) penetrates through the middle of the sliding hole (8) and is in sliding connection with the sliding hole (8), the limiting sliding block (11) is matched with the sliding groove (9), and the limiting sliding block (11) is arranged in the middle of the sliding groove (9).

5. The novel teaching demonstration ruler according to claim 1, wherein: the cross-sectional shape of the fixed block (17) is set to be T-shaped, the fixed block (17) is matched with the limiting chute (18), and the fixed block (17) is arranged in the middle of the limiting chute (18).

6. The novel teaching demonstration ruler according to claim 1, wherein: the locating inserting rod (21) is matched with the locating inserting hole (19), one end of the locating inserting rod (21) is inserted into the middle of the locating inserting hole (19), and the number of the anti-slip sticking blocks (22) is multiple.