CN213458468U

CN213458468U - Linear algebra teaching aid

Info

Publication number: CN213458468U
Application number: CN202022689742.3U
Authority: CN
Inventors: 于佳彤
Original assignee: Harbin Huade University
Current assignee: Harbin Huade University
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-06-15
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a linear algebra teaching aid, including teaching aid body, first teaching board and fixed plate, first teaching board upper left side and third teaching board fixed connection, and first teaching board upper right side and second teaching board fixed connection, first teaching board bottom and support plate fixed connection simultaneously, support plate bottom and backup pad fixed connection to backup pad lower extreme and base welded fastening, the spacing groove has been seted up on the fixed plate, and spacing inslot portion fixedly connected with locating piece, the coefficient tablet is installed to the spacing inslot simultaneously to coefficient tablet inside has seted up the constant head tank. This linear algebra teaching aid, teaching aid body comprise first teaching board, second teaching board and third teaching board triplex, and three groups of teaching boards enclose into regular triangle, and after first teaching board used out, can use the second teaching board, can use the third teaching board after the second teaching board used out, and three groups of teaching boards replace the use simultaneously, can improve the work efficiency of teaching aid body.

Description

Linear algebra teaching aid

Technical Field

The utility model relates to a teaching aid equipment science and technology technical field specifically is a linear algebra teaching aid.

Background

Linear algebra is a branch of mathematics, and research objects of the linear algebra are vectors, vector spaces (or called linear spaces), linear transformation and finite-dimension linear equation sets, and the vector spaces are an important subject of modern mathematics; thus, linear algebra is widely used in abstract algebra and functional analysis; linear algebra is specifically expressed by analyzing geometry, the theory of linear algebra is generalized to operator theory, and a nonlinear model in scientific research can be generally approximated to a linear model, so that the linear algebra is widely applied to natural science and social science, and in linear algebra teaching, a matrix, a determinant, a matrix equation and the like are often written on a blackboard;

at present, teachers can not use any teaching aid when speaking university mathematics linear algebra, solving an inverse matrix of a matrix in the linear algebra is one of important methods for solving a linear equation set and is also the basis of the university mathematics linear algebra, the inverse matrix of the matrix of more than three orders is solved on a blackboard, and the solution occupies a large board and is easy to make mistakes; therefore, a linear algebra teaching aid is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a linear algebra teaching aid to solve the defect that mentions in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a linear algebra teaching aid, includes teaching aid body, first teaching board and fixed plate, first teaching board upper left side and third teaching board fixed connection, and first teaching board upper right side and second teaching board fixed connection, first teaching board bottom and support plate fixed connection simultaneously, support plate bottom and backup pad fixed connection to backup pad lower extreme and base welded fastening, the spacing groove has been seted up on the fixed plate, and spacing inslot portion fixedly connected with locating piece, the coefficient tablet is installed to the spacing inslot simultaneously to the inside constant head tank of having seted up of coefficient tablet.

Preferably, the teaching aid body comprises first teaching board, second teaching board and third teaching board triplex, and the structure on first teaching board, second teaching board and the third teaching board is unanimous.

Preferably, the first teaching board, the second teaching board and the third teaching board are combined together to form a regular triangle.

Preferably, a plurality of groups of fixing plates are uniformly arranged on the first teaching plate, the fixing plates are arranged in a square shape, and the limiting grooves formed in the fixing plates are arranged in a circular shape.

Preferably, the coefficient tablet is matched with the size of the limiting groove, the coefficient tablet is of a circular structure made of a plastic material, and the coefficient tablet is clamped in the limiting groove.

Preferably, the coefficient plate is provided with a lower open groove, the fixing plate is provided with an upper open groove, and the upper open groove and the lower open groove are arranged oppositely.

Preferably, the tip and the second magnet fixed connection of locating piece, and the inside fixedly connected with first magnet of constant head tank, second magnet and first magnet adsorb together, and second magnet is the regular hexagon setting with the section of first magnet, the size looks adaptation of locating piece and constant head tank, and the coefficient tablet cup joints on the locating piece through its inside constant head tank simultaneously.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the positioning block is inserted in the positioning groove on the coefficient plate, and the profiles of the positioning block and the positioning groove are both arranged in a regular hexagon, so that the coefficient plate is prevented from moving in the fixing plate;

2. the teaching aid body comprises first teaching board, second teaching board and third teaching board triplex, and three groups of teaching boards enclose into regular triangle, and first teaching board uses after finishing, can use the second teaching board, and second teaching board uses after finishing, can use the third teaching board, and three groups of teaching boards replace the use simultaneously, can improve the work efficiency of teaching aid body.

Drawings

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

FIG. 2 is a top view of the structure of FIG. 1;

FIG. 3 is a partially enlarged schematic view of the structure of FIG. 1 of the present invention;

FIG. 4 is a schematic sectional view of the structure A-A of the present invention;

FIG. 5 is a schematic view of the upper and lower grooves of the structure of the present invention;

FIG. 6 is a structural coefficient indication diagram of the present invention;

fig. 7 is a schematic sectional view of the structural coefficient card of the present invention.

Reference numbers in the figures: 1. a teaching aid body; 2. a first teaching board; 3. a coefficient card; 4. a limiting groove; 5. positioning blocks; 6. a support plate; 7. a base; 8. a carrier plate; 9. a second teaching board; 10. a third teaching board; 11. an upper groove is formed; 12. lower grooving; 13. positioning a groove; 14. a first magnet; 15. a second magnet; 16. and (7) fixing the plate.

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. 1-7, the present invention provides a technical solution: a linear algebra teaching aid comprises a teaching aid body 1, a first teaching board 2 and a fixing board 16, wherein the upper left side of the first teaching board 2 is fixedly connected with a third teaching board 10, the upper right side of the first teaching board 2 is fixedly connected with a second teaching board 9, the bottom of the first teaching board 2 is fixedly connected with a support board 8, the bottom of the support board 8 is fixedly connected with a support board 6, the lower end of the support board 6 is welded and fixed with a base 7, a limiting groove 4 is formed in the fixing board 16, a positioning block 5 is fixedly connected inside the limiting groove 4, a coefficient board 3 is installed in the limiting groove 4, and a positioning groove 13 is formed in the coefficient board 3; the end part of the positioning block 5 is fixedly connected with a second magnet 15, a first magnet 14 is fixedly connected inside the positioning groove 13, the second magnet 15 and the first magnet 14 are adsorbed together, the sections of the second magnet 15 and the first magnet 14 are both arranged in a regular hexagon shape, the positioning block 5 is matched with the positioning groove 13 in size, and meanwhile, the coefficient plate 3 is sleeved on the positioning block 5 through the positioning groove 13 inside the positioning block; a plurality of groups of fixing plates 16 are uniformly arranged on the first teaching plate 2, the fixing plates 16 are arranged in a square shape, and meanwhile, limiting grooves 4 arranged in the fixing plates 16 are arranged in a circular shape; the teaching aid body 1 consists of a first teaching board 2, a second teaching board 9 and a third teaching board 10, and the structures of the first teaching board 2, the second teaching board 9 and the third teaching board 10 are consistent; the first teaching board 2, the second teaching board 9 and the third teaching board 10 are combined together to form a regular triangle; the coefficient board 3 is matched with the limiting groove 4 in size, the coefficient board 3 is of a circular structure made of plastic materials, and the coefficient board 3 is clamped inside the limiting groove 4; the coefficient plate 3 is provided with a lower open slot 12, the fixing plate 16 is provided with an upper open slot 11, and the upper open slot 11 is opposite to the lower open slot 12.

As shown in fig. 1-2: teaching aid body 1 comprises first teaching board 2, second teaching board 9 and third teaching board 10 triplex, and three groups of teaching boards enclose into regular triangle, and first teaching board 2 uses after finishing, can use second teaching board 9, and second teaching board 9 uses after finishing to use can use third teaching board 10, and three groups of teaching boards replace the use simultaneously, can improve teaching aid body 1's work efficiency.

As shown in fig. 1-5: when needs take out coefficient tablet 3 from fixed plate 16 inside, the finger is detained under inside fluting 12, constant head tank 13, is convenient for take out coefficient tablet 3 from fixed plate 16, and the constant head tank 13 on the coefficient tablet 3 is inside to be pegged graft and is had locating piece 5, and locating piece 5 is the regular hexagon setting with the section plane of constant head tank 13, avoids coefficient tablet 3 to take place the activity in fixed plate 16 is inside.

The working principle is as follows: when the linear algebra teaching aid is used, the coefficient cards 3 are held by hands, the coefficient cards 3 are attached to the inner parts of the limiting grooves 4, the positioning blocks 5 are inserted into the positioning grooves 13, the first magnets 14 and the second magnets 15 are attracted together, the coefficient cards 3 are provided with numbers, a plurality of groups of coefficient cards 3 can be attached to the inner parts of a plurality of groups of limiting grooves 4, a three-by-three matrix or a four-by-four matrix can be placed, and teachers can conveniently conduct linear algebra teaching work; this is the whole process of the linear algebra teaching aid.

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 linear algebra teaching aid, includes teaching aid body (1), first teaching board (2) and fixed plate (16), its characterized in that: first teaching board (2) upper left side and third teaching board (10) fixed connection, and first teaching board (2) upper right side and second teaching board (9) fixed connection, simultaneously first teaching board (2) bottom and support plate (8) fixed connection, support plate (8) bottom and backup pad (6) fixed connection to backup pad (6) lower extreme and base (7) welded fastening, spacing groove (4) have been seted up on fixed plate (16), and inside fixedly connected with locating piece (5) of spacing groove (4), install coefficient tablet (3) in spacing groove (4) simultaneously to coefficient tablet (3) inside constant head tank (13) have been seted up.

2. A linear algebra teaching aid according to claim 1, characterized in that: the teaching aid body (1) is composed of a first teaching board (2), a second teaching board (9) and a third teaching board (10), and the first teaching board (2), the second teaching board (9) and the third teaching board (10) are consistent in structure.

3. A linear algebra teaching aid according to claim 1, characterized in that: the first teaching board (2), the second teaching board (9) and the third teaching board (10) are combined together to form a regular triangle.

4. A linear algebra teaching aid according to claim 1, characterized in that: the teaching board is characterized in that a plurality of groups of fixing plates (16) are uniformly arranged on the first teaching board (2), the fixing plates (16) are arranged in a square shape, and meanwhile, the limiting grooves (4) formed in the fixing plates (16) are arranged in a circular shape.

5. A linear algebra teaching aid according to claim 1, characterized in that: the coefficient tablet (3) and the size looks adaptation of spacing groove (4), and coefficient tablet (3) are the circular structure of being made by the plastics material, and coefficient tablet (3) joint is in the inside of spacing groove (4).

6. A linear algebra teaching aid according to claim 1, characterized in that: the coefficient plate (3) is provided with a lower open groove (12), the fixing plate (16) is provided with an upper open groove (11), and the upper open groove (11) and the lower open groove (12) are arranged oppositely.

7. A linear algebra teaching aid according to claim 1, characterized in that: the tip and second magnet (15) fixed connection of locating piece (5), and first magnet (14) of constant head tank (13) inside fixedly connected with, second magnet (15) and first magnet (14) adsorb together, and second magnet (15) are the regular hexagon setting with the section of first magnet (14), the size looks adaptation of locating piece (5) and constant head tank (13), and coefficient tablet (3) cup joint on locating piece (5) through its inside constant head tank (13) simultaneously.