CN111816034A

CN111816034A - Portable simple teaching aid for teaching

Info

Publication number: CN111816034A
Application number: CN202010337342.8A
Authority: CN
Inventors: 孙伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-10-23

Abstract

The invention discloses a portable simple teaching aid for teaching, which comprises a set square main body, a sliding seat, a chalk chuck, a telescopic protractor, a back baffle plate, a friction plate and a marker post, wherein the sliding seat is sleeved on one right-angle side of the set square main body, a rotating handle is arranged at the top end of the other right-angle side of the set square main body, the chalk chuck is fixedly connected to one side of the sliding seat, the telescopic protractor is divided into a fixed section and a telescopic section, the fixed section is fixedly connected to the inside of the right angle of the set square main body, one end of the marker post is rotatably connected to the circle center of the fixed section, the back baffle plate is rotatably connected with the set square main body through a rotating shaft, the friction plate is fixedly connected to the inside of. This portable simple and easy teaching aid of teaching sets up through the cooperation of back baffle and sucking disc for the back of set square main part levels, is convenient for paste and uses on the blackboard, and this integrated configuration has satisfied multiple using-way, has reached the purpose that convenient teaching used.

Description

Portable simple teaching aid for teaching

Technical Field

The invention relates to the technical field of teaching aids, in particular to a portable simple teaching aid for teaching.

Background

The teaching aid is the model that is used for explaining a certain thing, the material object, the sample, the instrument, the chart, the slide etc. including teaching equipment, the teaching instrument, real standard equipment, education is equipped, experimental facilities, the teaching sample, teaching model etc. teacher's teaching aid often will use various in the classroom, for example, during mathematics teacher and the old teacher's teaching of physics, all often need draw on the blackboard, need use the set-square usually, the protractor, drawing tools such as compasses, in addition, the frictional force demonstration also is very important study task in the physics course.

However, various teaching aids for drawing and friction force demonstration are independent individuals, and a plurality of small and complicated teaching aids are very inconvenient for teachers to carry and use in class, bring much trouble for teachers, and have the defects of inconvenience in carrying and easiness in losing and damaging; some teachers do not use drawing tools to draw by hands in order to save trouble, the shapes are very inaccurate, and the teaching quality is seriously influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a portable simple teaching aid for teaching, which has the advantages of combined structure, convenience in teaching use and the like, and solves the problems.

(II) technical scheme

In order to realize the purpose of convenient teaching, the invention provides the following technical scheme: the utility model provides a portable simple and easy teaching aid of teaching, includes set square main part, sliding seat, chalk chuck, scalable protractor, back baffle, friction disc, sighting rod, the sliding seat has been cup jointed on a right-angle side of set square main part, the top on another right-angle side of set square main part is provided with the rotation handle, one side fixedly connected with chalk chuck of sliding seat, scalable protractor divide into canned paragraph and flexible section, canned paragraph fixed connection is inside the right angle of set square main part, the one end of sighting rod is rotated and is connected the centre of a circle department at canned paragraph, back baffle and set square main part are rotated through the pivot and are connected, friction disc fixed connection is in the inside of back baffle, the inboard fixedly connected with sucking disc of back baffle, the hypotenuse middle part fixedly connected with handle of set square main part.

Preferably, a slide chamber is formed in one right-angle side of the triangular ruler main body, and a rotating shaft is fixedly connected to the top of the other right-angle side of the triangular ruler main body.

Preferably, the upper end of the sliding seat is in threaded connection with a fixing bolt, and one end of the fixing bolt is inserted into the sliding chamber.

Preferably, the right-angle bottom of the triangular ruler main body is fixedly connected with an ejector pin, the rotating handle is rotatably connected to the top of the triangular ruler main body through a rotating shaft, and the ejector pin is located right below the rotating handle.

Preferably, a limiting groove is formed between the fixed section of the telescopic protractor and the right angle of the triangular ruler main body, and a spring clamp is placed inside the limiting groove.

Preferably, the first stop block is fixedly connected to the lower portion of one end of the telescopic section, the second stop block is fixedly connected to the upper portion of the other end of the telescopic section, and the spring clamp is clamped between the first stop block and the triangular ruler main body.

Preferably, a clamping groove is formed in the chalk clamp, and an elastic metal sheet is arranged at one end of the clamping groove.

Preferably, the other end of the clamping groove is in threaded connection with an adjusting rod, one end of the adjusting rod is rotatably connected with a push plate, and the push plate is connected inside the clamping groove in a sliding mode.

Preferably, the number of the suckers is three, and the three suckers are respectively located at three top corners of the back baffle.

(III) advantageous effects

Compared with the prior art, the invention provides a portable simple teaching aid for teaching, which has the following beneficial effects:

1. this portable simple and easy teaching aid of teaching sets up through sliding seat, thimble and the cooperation of rotating the handle for this teaching aid uses the thimble as the center, utilizes the movement track of chalk chuck to draw a standard circle, and can adjust the radius size of circle through the sliding seat, in addition, through the rotation effect of rotating the handle, uses with the thimble cooperation during the drawing of circle, makes things convenient for rotatory whole device, reaches the purpose of drawing the circle fast.

2. This portable simple and easy teaching aid of teaching sets up through the cooperation of back baffle and sucking disc, and the back baffle adsorbs at the back of set square main part through three sucking disc to make the back of set square main part level and smooth, be convenient for paste and use on the blackboard, in addition, pivot department expansion can be followed to the back baffle, and rethread sucking disc adsorbs on the blackboard, thereby makes the friction disc show out, and this modular structure has satisfied multiple using-way, has reached the purpose that facilitates the teaching and use.

3. According to the portable simple teaching aid for teaching, the telescopic protractor and the marker post are arranged in a matched mode, the marker post rotates along the circle center of the protractor to achieve angle measurement and drawing, and when the angle is expanded too much, the telescopic section can be driven to slide along the fixed section, so that obtuse angle measurement and drawing are achieved; through the cooperation setting of chalk chuck, draw-in groove, elastic metal piece, regulation pole, push pedal, can realize adjusting the chalk of centre gripping in the use for the chalk keeps the level with the thimble all the time, thereby has reached the convenient purpose of making a circle, and this teaching aid collects straight line, standard circle, standard angle and frictional force demonstration as an organic whole, and overall design is reasonable, convenient teaching use.

Drawings

FIG. 1 is a front view of a triangular ruler main body according to the present invention;

fig. 2 is a schematic structural diagram of the retractable protractor according to the present invention;

FIG. 3 is a schematic structural view of a back baffle and a friction plate according to the present invention;

FIG. 4 is a schematic view of a handle according to the present invention;

FIG. 5 is a schematic view of a sliding seat structure according to the present invention;

FIG. 6 is a schematic structural view of the triangular ruler main body and the back baffle according to the present invention;

FIG. 7 is a schematic structural view of the telescoping section and spring clip of the present invention;

FIG. 8 is a schematic structural view of a chalk holder according to the present invention;

FIG. 9 is a schematic sectional structural view of a chalk holder according to the present invention;

FIG. 10 is an enlarged schematic view of the structure at A in FIG. 4 according to the present invention;

fig. 11 is a back structure diagram of the triangular ruler main body and the back baffle according to the present invention.

In the figure: 1. a set square main body; 2. a sliding seat; 201. fixing the bolt; 3. a chalk chuck; 301. a card slot; 4. a telescopic protractor; 401. a fixed section; 402. a telescopic section; 5. a back baffle; 6. a friction plate; 7. a marker post; 8. rotating the handle; 9. a suction cup; 10. smoldering the chamber; 11. a rotating shaft; 12. a thimble; 13. A limiting groove; 14. a spring clip; 15. a first stopper; 16. a second stopper; 17. a resilient metal sheet; 18. Adjusting a rod; 19. pushing the plate; 20. a handle.

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. 1-11, the teaching aid comprises a set square main body 1, a sliding seat 2, a chalk chuck 3, a telescopic protractor 4, a back baffle 5, a friction plate 6 and a marker post 7, wherein a slide chamber 10 is arranged inside one right-angle side of the set square main body 1, a rotating shaft 11 is fixedly connected to the top of the other right-angle side of the set square main body 1, a thimble 12 is fixedly connected to the right-angle bottom of the set square main body 1, the rotating handle 8 is rotatably connected to the top of the set square main body 1 through the rotating shaft 11, the thimble 12 is positioned under the rotating handle 8, the sliding seat 2, the thimble 12 and the rotating handle 8 are matched to draw a standard circle by using the movement track of the chalk chuck 3 as the center, the radius of the circle can be adjusted through the sliding seat 2, in addition, the rotating effect of the rotating handle 8 is matched with the thimble 12 for use when drawing the circle, the whole device is convenient to rotate, the purpose of quickly drawing circles is achieved, a right-angle side of a triangular ruler main body 1 is sleeved with a sliding seat 2, the upper end of the sliding seat 2 is connected with a fixing bolt 201 in a threaded manner, one end of the fixing bolt 201 is inserted into a slide chamber 10, the top end of the other right-angle side of the triangular ruler main body 1 is provided with a rotating handle 8, one side of the sliding seat 2 is fixedly connected with a chalk chuck 3, the inside of the chalk chuck 3 is provided with a clamping groove 301, one end of the clamping groove 301 is provided with an elastic metal sheet 17, the other end of the clamping groove 301 is connected with an adjusting rod 18 in a threaded manner, one end of the adjusting rod 18 is rotatably connected with a push plate 19, the push plate 19 is slidably connected into the clamping groove 301, the chalk chuck 3, the clamping groove 301, the elastic metal sheet 17, the adjusting rod 18 and the push plate 19 are, thereby achieving the purpose of conveniently making circles, the teaching aid integrates demonstration of straight lines, standard circles, standard angles and friction force, has reasonable integral design and is convenient for teaching use, the telescopic protractor 4 is divided into a fixed section 401 and a telescopic section 402, the fixed section 401 is fixedly connected inside the right angle of the set square main body 1, one end of the marker post 7 is rotatably connected at the circle center of the fixed section 401, the marker post 7 rotates along the circle center of the protractor to realize the measurement and drawing of angles through the matching arrangement of the telescopic protractor 4 and the marker post 7, when the angle is expanded excessively, the telescopic section 402 can be driven to slide along the fixed section 401, thereby realizing the measurement and drawing of obtuse angles, a limiting groove 13 is arranged between the fixed section 401 of the telescopic protractor 4 and the right angle of the set square main body 1, a spring clamp 14 is arranged inside the limiting groove 13, a first stop block 15 is fixedly connected below one end of the telescopic section 402, a second stop block 16 is fixedly connected above the other end of the telescopic section, a spring clamp 14 is clamped between a first stop block 15 and the triangular ruler main body 1, the back baffle 5 and the triangular ruler main body 1 are rotationally connected through a rotating shaft, a friction plate 6 is fixedly connected inside the back baffle 5, a sucker 9 is fixedly connected on the inner side of the back baffle 5, a handle 20 is fixedly connected in the middle of the inclined edge of the triangular ruler main body 1, the number of the suckers 9 is three, the three suckers 9 are respectively positioned at three top corners of the back baffle 5, the back baffle 5 is adsorbed on the back of the triangular ruler main body 1 through the three suckers 9 by matching the back baffle 5 and the suckers 9, so that the back of the triangular ruler main body 1 is flat and convenient to be attached on a blackboard for use, in addition, the back baffle 5 can be unfolded along the rotating shaft, and then is adsorbed on the, the combined structure meets multiple use modes and achieves the purpose of convenient teaching use.

When the back baffle 5 is closed, the protractor and the combined compasses can be used for drawing a standard circle and a standard angle value; the combined compasses draw circles by taking the thimble 12 as a fulcrum and taking the distance between the chalk chuck 3 and the thimble 12 as a radius, and the chalk chuck 3 is slidably adjusted along the right-angle side of the triangular ruler main body 1 through the sliding seat 2, in addition, under the action of the rotating handle 8, the quick rotation can be realized for drawing circles, and the combined compasses are convenient for teachers to teach and use; after 5 back baffles in the upset, can expand friction disc 6, realize the demonstration of different coefficient of friction in the physics course, make things convenient for the teaching of physics mr to use, and the three sucking disc 9 of 5 accessible back baffles adsorbs at the back of set square main part 1 to make the back of set square main part 1 level and smooth, be convenient for paste and apply the blackboard on use.

In conclusion, the portable simple teaching aid for teaching uses the sliding seat 2, the thimble 12 and the rotating handle 8 to be matched with each other, so that the teaching aid uses the thimble 12 as the center, draws a standard circle by using the movement track of the chalk chuck 3, and can adjust the radius of the circle by the sliding seat 2, in addition, the back baffle 5 is adsorbed on the back of the triangular ruler main body 1 by the three suckers 9 through the rotating effect of the rotating handle 8, so that the back of the triangular ruler main body 1 is smooth and convenient to be attached on a blackboard for use, in addition, the back baffle 5 can be unfolded along the rotating shaft and adsorbed on the blackboard through the suckers 9, so that the friction plate 6 is exposed, the combined structure meets various use modes, the purpose of convenient teaching use is achieved, the telescopic protractor 4 and the marker post 7 are arranged in a matched mode, the marker post 7 rotates along the circle center of the protractor to achieve angle measurement and drawing, and when the angle is expanded too much, the telescopic section 402 can be driven to slide along the fixed section 401, so that obtuse angle measurement and drawing are achieved; through the cooperation setting of chalk chuck 3, draw-in groove 301, elastic metal piece 17, regulation pole 18, push pedal 19, can realize adjusting the chalk of centre gripping in the use for the chalk keeps the level with the thimble all the time, thereby has reached the convenient purpose of making a circle, and this teaching aid collects straight line, standard circle, standard angle and frictional force demonstration as an organic whole, and overall design is reasonable, convenient teaching use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

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 portable simple and easy teaching aid of teaching, includes set square main part (1), sliding seat (2), chalk chuck (3), scalable protractor (4), back baffle (5), friction disc (6), sighting rod (7), its characterized in that: a sliding seat (2) is sleeved on one right-angle side of the triangular ruler main body (1), a rotating handle (8) is arranged at the top end of the other right-angle side of the triangular ruler main body (1), one side of the sliding seat (2) is fixedly connected with a chalk chuck (3), the telescopic protractor (4) is divided into a fixed section (401) and a telescopic section (402), the fixed section (401) is fixedly connected inside the right angle of the triangular ruler main body (1), one end of the marker post (7) is rotatably connected at the circle center of the fixed section (401), the back baffle (5) is rotationally connected with the triangular ruler main body (1) through a rotating shaft, the friction plate (6) is fixedly connected inside the back baffle plate (5), the inner side of the back baffle plate (5) is fixedly connected with a sucker (9), the middle part of the bevel edge of the triangular ruler main body (1) is fixedly connected with a handle (20).

2. A portable simple teaching aid as claimed in claim 1, wherein: the inside of a right-angle side of the triangular ruler main body (1) is provided with a slide chamber (10), and the top of the other right-angle side of the triangular ruler main body (1) is fixedly connected with a rotating shaft (11).

3. A portable simple teaching aid as claimed in claim 2, wherein: the upper end of the sliding seat (2) is in threaded connection with a fixing bolt (201), and one end of the fixing bolt (201) is inserted into the sliding chamber (10).

4. A portable simple teaching aid as claimed in claim 2, wherein: the right angle bottom fixedly connected with thimble (12) of set square main part (1), rotation handle (8) rotate through axis of rotation (11) and connect the top at set square main part (1), thimble (12) are located and rotate handle (8) under.

5. A portable simple teaching aid as claimed in claim 1, wherein: a limiting groove (13) is formed between the fixing section (401) of the telescopic protractor (4) and the right angle of the triangular ruler main body (1), and a spring clamp (14) is placed inside the limiting groove (13).

6. A portable simple teaching aid as claimed in claim 1, wherein: the one end below fixedly connected with first dog (15) of flexible section (402), the other end top fixedly connected with second dog (16) of flexible section, spring clamp (14) joint is between first dog (15) and set square main part (1).

7. A portable simple teaching aid as claimed in claim 1, wherein: a clamping groove (301) is formed in the chalk clamp (3), and an elastic metal sheet (17) is arranged at one end of the clamping groove (301).

8. A portable simple teaching aid as claimed in claim 7, wherein: the other end threaded connection of draw-in groove (301) has regulation pole (18), the one end of adjusting pole (18) is rotated and is connected with push pedal (19), push pedal (19) sliding connection is in the inside of draw-in groove (301).

9. A portable simple teaching aid as claimed in claim 1, wherein: the number of the suckers (9) is three, and the three suckers (9) are respectively positioned at three top corners of the back baffle (5).