CN216817637U

CN216817637U - Teaching aid for primary and secondary school teaching

Info

Publication number: CN216817637U
Application number: CN202123347919.2U
Authority: CN
Inventors: 黄先锋; 张春霞; 张兵爱; 李小芹
Original assignee: Baijiexi Primary School Of Xuanhan County
Current assignee: Baijiexi Primary School Of Xuanhan County
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-24
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to the field of teaching aids, in particular to a teaching aid for middle and primary schools, which comprises a transverse plate, wherein suckers are fixed on two sides of the bottom of the transverse plate, a groove is formed in the rear side wall of the transverse plate, two sides of the inner cavity of the groove are rotatably connected with a rotating shaft, a sleeve is fixedly sleeved on the outer wall of the rotating shaft, an inserting rod is inserted into the inner cavity of the sleeve, and a magnet is fixedly connected to the outer end of the inserting rod. According to the utility model, the transverse plate is adsorbed on the surface of the blackboard through the sucking disc, then the elasticity of the inserting rod is utilized, and the freely rotating activity of the inserting rod and the sleeve is utilized, so that a triangle is formed, after the triangle is obtained, the length-variable reading can be carried out by utilizing the scale marks, thus the relation between the three side lengths can be quickly judged, and the teaching can be manually operated, so that students can understand more vividly, is more practical, and is suitable for wide popularization and use.

Description

Teaching aid for primary and secondary school teaching

Technical Field

The utility model relates to the field of teaching aids, in particular to a teaching aid for primary and secondary schools.

Background

Teaching is a human-specific talent training activity consisting of teacher's teaching and student's learning. Through the activities, teachers purposefully, planningly and organically guide students to learn and master cultural science knowledge and skills, and promote the improvement of the qualities of the students, so that the students become people required by the society.

In the teaching process of the existing teachers, different teaching aids are needed for different subjects, wherein the teaching aids are especially important for mathematical teaching, and the teaching aids are matched with devices in class for teaching due to the fact that mathematics is abstract, so that teaching is more vivid;

in the western edition mathematics fourth-grade lower volume, the fourth unit is a triangle, and when the relation of three sides of the triangle is explained, the long strips with different lengths are displayed on a blackboard or a projection, so that the operation is very inconvenient. Therefore, a teaching aid for primary and middle school teaching is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a teaching aid for primary and secondary schools, which solves the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the teaching aid for primary and secondary schools comprises a transverse plate, wherein suckers are fixed on two sides of the bottom of the transverse plate;

the rear side wall of the transverse plate is provided with a groove, two sides of an inner cavity of the groove are rotatably connected with a rotating shaft, a sleeve is fixedly sleeved on the outer wall of the rotating shaft, an inserting rod is inserted into the inner cavity of the sleeve, and a magnet is fixedly connected to the outer end of the inserting rod.

In a preferred embodiment of the present invention, the outer wall of the insertion rod is provided with scale marks.

As a preferred embodiment of the present invention, a fastening bolt penetrates through the outer wall thread of the sleeve, and the bolt is fastened to the outer wall of the insertion rod.

As a preferred embodiment of the present invention, an iron sheet is fixed in the middle of the inner cavity of the groove.

In a preferred embodiment of the present invention, the rotating shaft and the suction cup are concentrically arranged.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the teaching aid for primary and secondary schools, the horizontal plate is adsorbed on the surface of the blackboard through the sucker, then the retractility of the inserting rod is utilized, and the freely rotating activity of the inserting rod and the sleeve is utilized, so that a triangle is formed, after the triangle is obtained, the length-variable reading can be carried out through the scale marks, the relation between the three side lengths can be judged quickly, manual operation can be carried out during teaching, and students can understand more vividly.

2. According to the teaching aid for middle and primary schools, the insertion rod can be fastened under the rotating condition through the abutting bolt on the outer wall of the sleeve, so that the stability in the using process is ensured, and meanwhile, the sleeve and the insertion rod can be accommodated in the groove, so that the teaching aid is small in size and convenient to carry and accommodate.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic diagram of the overall structure of a primary school teaching aid according to the present invention;

FIG. 2 is a schematic diagram of a structure of a side wall of a transverse plate of the teaching aid for primary school teaching according to the present invention;

FIG. 3 is a schematic view of a connecting structure of a plug rod and a sleeve of the primary school teaching aid.

In the figure: 1. a transverse plate; 2. a suction cup; 3. a sleeve; 4. inserting a rod; 5. a magnet; 6. a groove; 7. a rotating shaft; 8. iron sheets; 9. scale lines; 10. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the teaching aid for primary and secondary school teaching comprises a transverse plate 1, wherein two sides of the bottom of the transverse plate 1 are respectively fixed with a sucker 2, and the suckers 2 are used for adsorbing the transverse plate 1 on the surface of a blackboard so as to be preliminarily fixed;

recess 6 has been seted up to the rear side wall of diaphragm 1, and recess 6 is used for accomodating, the inner chamber both sides of recess 6 are all rotated and are connected with pivot 7, the outer wall fixed cover of pivot 7 is equipped with sleeve pipe 3, the inner chamber of sleeve pipe 3 is pegged graft and is had inserted bar 4, the outer end fixedly connected with magnet 5 of inserted bar 4, the setting of magnet 5 for two sets of magnet 5 can adsorb, thereby make to constitute triangle-shaped, can stretch out and draw back between inserted bar 4 and the sleeve pipe 3 simultaneously, thereby realize the length of side of different length, make to constitute triangle-shaped.

In this embodiment, the outer wall of the inserted rod 4 is provided with scale marks 9, and the scale marks 9 are arranged to measure in advance, so that the reading of the scale marks is the length of the side length of the triangle formed between the sleeve 3 and the inserted rod 4.

In this embodiment, the outer wall thread of the sleeve 3 penetrates through the fastening bolt 10, the bolt 10 fastens to the outer wall of the insert rod 4, and the fastening bolt 10 is fastened to the outer wall of the insert rod 4, so that the insert rod 4 can be fastened, and the stability of the insert rod 4 is ensured.

In this embodiment, department is fixed with iron sheet 8 in the middle of the inner chamber of recess 6, the setting of iron sheet 8 for back in recess 6 is accomodate to inserted bar 4 and sleeve pipe 3, and magnet 5 can adsorb on the surface of iron sheet 8, thereby makes firmly.

In this embodiment, the rotating shaft 7 and the sucker 2 are concentrically arranged, so that the formed triangle is more accurate.

The working principle is as follows: firstly, a transverse plate 1 is fixedly adsorbed on the surface of a blackboard by utilizing a sucker 2, then a sleeve 3 is rotated, and an inserted rod 4 is stretched, so that magnets 5 at the outer ends of two groups of inserted rods 4 are adsorbed, and a fastening bolt 10 is screwed so as to be fastened to the outer wall of the inserted rod 4, so that the inserted rod 4 is stable, and a triangle is formed, then scales on the surface of the inserted rod 4 are read, so that two side lengths of the formed triangle can be obtained, meanwhile, the length of the transverse plate 1 is fixed, and further, the relation between the two side lengths and the length of the fixed transverse plate 1 can be easily obtained, teaching is performed, so that students can conveniently understand, the teaching content is richer, when the device is not needed to be used, the inserted rod 4 is contained in the sleeve 3, then the sleeve 3 is rotated so as to be contained in a groove 6, and the magnet 5 adsorbs an iron sheet 8 so as to be stable, and can be prevented from sliding out, thereby make the whole volume of device reduce, conveniently carry and accomodate.

In addition, the components included in the teaching aid for primary school teaching in the utility model are all universal standard components or components known by technicians in the field, the structure and principle of the teaching aid are known by technicians in the technical manual or known by conventional experimental methods, at the idle position of the device, all the electric devices in the device refer to power elements, electric devices, adaptive monitoring computers and power supplies which are connected through wires, and specific connecting means are provided.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Teaching aid of primary and secondary school, including diaphragm (1), its characterized in that: both sides of the bottom of the transverse plate (1) are fixed with suckers (2);

the rear side wall of the transverse plate (1) is provided with a groove (6), two sides of an inner cavity of the groove (6) are rotatably connected with a rotating shaft (7), the outer wall of the rotating shaft (7) is fixedly sleeved with a sleeve (3), an inner cavity of the sleeve (3) is spliced with an inserting rod (4), and the outer end of the inserting rod (4) is fixedly connected with a magnet (5).

2. A teaching aid for primary and secondary school teaching as claimed in claim 1, wherein: the outer wall of the inserted link (4) is provided with scale marks (9).

3. A teaching aid for primary and secondary school teaching as claimed in claim 1, wherein: the outer wall thread of sleeve pipe (3) runs through and supports tight bolt (10), bolt (10) support tightly in the outer wall of inserted bar (4).

4. A teaching aid for primary and secondary school teaching as claimed in claim 1, wherein: an iron sheet (8) is fixed in the middle of the inner cavity of the groove (6).

5. A teaching aid for primary and secondary school teaching as claimed in claim 1, wherein: the rotating shaft (7) and the sucker (2) are arranged concentrically.