CN111816034A - A kind of portable simple teaching aids for teaching - Google Patents

Abstract

The invention discloses a portable simple teaching aid for teaching, which comprises a main body of a triangle ruler, a sliding seat, a chalk chuck, a retractable protractor, a back baffle, a friction plate and a benchmark. The top of the other right-angle side of the main body of the triangular ruler is provided with a turning handle, and one side of the sliding seat is fixedly connected with a chalk chuck. One end of the benchmark rod is rotatably connected to the center of the fixed segment, the back baffle and the main body of the triangular ruler are rotatably connected through the rotating shaft, the friction plate is fixedly connected to the inside of the back baffle, and the inner side of the back baffle is fixedly connected with a suction cup. The portable simple teaching aid for teaching, through the cooperation of the back baffle and the suction cup, makes the back of the main body of the triangle ruler flat and easy to be attached to the blackboard. Purpose.

Description

A kind of portable simple teaching aids 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 technique

Teaching aids refer to models, objects, specimens, instruments, charts, slides, etc. used to explain something, including teaching equipment, teaching instruments, training equipment, educational equipment, experimental equipment, teaching specimens, teaching models, etc. Teachers often use a variety of teaching aids in the classroom. For example, math teachers and physics teachers often need to draw on the blackboard when teaching, usually using triangular boards, protractors, compasses and other drawing tools. In addition, physics courses Demonstration of medium friction is also a very important learning task.

However, the existing various teaching aids for drawing and friction demonstration are all a single individual, and many kinds of small and cumbersome teaching aids are very inconvenient for teachers to carry and use in class, which brings a lot of trouble to teachers, and there are many problems. The shortcomings of easy portability and easy loss and damage; some teachers simply do not use drawing tools to draw freehand drawings in order to save trouble. The shape is very inaccurate, which seriously affects the quality of teaching.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a portable simple teaching aid for teaching, which has the advantages of a combined structure and is convenient for teaching and use, and solves the above problems.

(2) Technical solutions

In order to realize the above-mentioned purpose of being convenient for teaching and use, the present invention provides the following technical scheme: a portable simple teaching aid for teaching, comprising a main body of a triangle ruler, a sliding seat, a chalk chuck, a retractable protractor, a back baffle, a friction plate, and a benchmark, all of which are One right-angle side of the main body of the triangle ruler is sleeved with a sliding seat, the top of the other right-angle side of the main body of the triangle ruler is provided with a turning handle, one side of the sliding seat is fixedly connected with a chalk chuck, and the retractable protractor is It is divided into a fixed section and a telescopic section, the fixed section is fixedly connected inside the right angle of the main body of the triangle ruler, one end of the benchmark rod is rotatably connected to the center of the fixed section, and the back baffle and the main body of the triangle ruler are connected by rotation through the rotating shaft, The friction sheet is fixedly connected to the inside of the back baffle, the inner side of the back baffle is fixedly connected with a suction cup, and the middle part of the oblique side of the main body of the triangular ruler is fixedly connected with a handle.

Preferably, a smooth bore is opened inside one right-angled side of the main body of the triangular ruler, and a rotating shaft is fixedly connected to the top of the other right-angled side of the main body of the triangular ruler.

Preferably, a fixing bolt is threadedly connected to the upper end of the sliding seat, and one end of the fixing bolt is inserted into the interior of the sliding bore.

Preferably, a thimble is fixedly connected to the right-angled bottom of the main body of the triangular ruler, the rotating handle is rotatably connected to the top of the main body of the triangular ruler through a rotating shaft, and the thimble is located just below the rotating handle.

Preferably, a limit slot is set between the fixed section of the retractable protractor and the right angle of the main body of the triangle, and a spring clip is placed inside the limit slot.

Preferably, a first stopper is fixedly connected below one end of the telescopic segment, a second stopper is fixedly connected above the other end of the telescopic segment, and the spring clip is clamped between the first stopper and the main body of the triangle ruler. between.

Preferably, a card slot is opened inside the chalk chuck, and one end of the card slot is provided with an elastic metal sheet.

Preferably, an adjustment rod is threadedly connected to the other end of the clamping slot, and a push plate is rotatably connected to one end of the adjustment rod, and the push plate is slidably connected inside the clamping slot.

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

(3) Beneficial effects

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

1. This portable and simple teaching aid is set by the sliding seat, the thimble and the rotating handle, so that the teaching aid is centered on the thimble, and a standard circle is drawn by the movement track of the chalk chuck, and the sliding seat can adjust the circle. The size of the radius, in addition, through the rotation effect of turning the handle, it is used in conjunction with the thimble when drawing a circle, which is convenient to rotate the whole device and achieve the purpose of drawing a circle quickly.

2. This portable and simple teaching aid for teaching is set by the cooperation of the back baffle and the suction cup. The back baffle is adsorbed on the back of the main body of the triangle ruler through three suction cups, so that the back of the main body of the triangle ruler is flat and easy to be attached to the blackboard. In addition, the back baffle can be unfolded along the rotating shaft, and then adsorbed on the blackboard through the suction cup, so that the friction plate is exposed.

3. This portable simple teaching aid for teaching, through the cooperation of the retractable protractor and the pole, the pole rotates along the center of the protractor to realize the measurement and drawing of the angle. When the angle is too large, the telescopic section can be driven to slide along the fixed section, thereby Realize the measurement and drawing of obtuse angles; through the coordination of the chalk chuck, the card slot, the elastic metal sheet, the adjusting rod and the push plate, the clamped chalk can be adjusted during use, so that the chalk is always kept level with the thimble, Thus, the purpose of making circles is easily achieved. The teaching aid integrates straight line, standard circle, standard angle and friction force demonstration, and the overall design is reasonable, which is convenient for teaching and use.

Description of drawings

Fig. 1 is the structural schematic diagram of the front view of the main body of the triangle ruler proposed by the present invention;

2 is a schematic structural diagram of a retractable protractor proposed by the present invention;

3 is a schematic structural diagram of a back baffle plate and a friction plate proposed by the present invention;

Fig. 4 is the structural schematic diagram of the handle proposed by the present invention;

5 is a schematic structural diagram of the sliding seat proposed by the present invention;

6 is a schematic structural diagram of the main body of the triangle ruler and the back baffle plate proposed by the present invention;

7 is a schematic structural diagram of a telescopic section and a spring clip proposed by the present invention;

Fig. 8 is the structural representation of the chalk chuck proposed by the present invention;

9 is a schematic structural diagram of a cross-sectional view of a chalk chuck proposed by the present invention;

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

FIG. 11 is a schematic diagram of the back structure of the main body of the triangle ruler and the back baffle plate proposed by the present invention.

In the picture: 1. Main body of the triangle ruler; 2. Sliding seat; 201, fixing bolt; 3. Chalk chuck; 301, card slot; 4. Retractable protractor; 401, fixed section; 402, telescopic section; 5. Back stop Plate; 6. Friction plate; 7. Benchmark; 8. Rotating handle; 9. Suction cup; 10. Smooth bore; 11. Rotating shaft; 12. Thimble; 13. Limit groove; 14. Spring clip; 15. First stopper ; 16, the second stop; 17, the elastic metal sheet; 18, the adjustment rod; 19, the push plate; 20, the handle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figure 1-11, including the main body of the triangle ruler 1, the sliding seat 2, the chalk chuck 3, the retractable protractor 4, the back baffle 5, the friction plate 6, the benchmark rod 7, the inner part of a right-angle side of the main body of the triangle ruler 1 is opened There is a smooth bore 10 , a rotating shaft 11 is fixedly connected to the top of the other right-angled side of the main body 1 of the triangle, and a thimble 12 is fixedly connected to the bottom of the main body 1 of the triangle. At the top, the thimble 12 is located just below the rotating handle 8, and is set by the cooperation of the sliding seat 2, the thimble 12 and the rotating handle 8, so that the teaching aid is centered on the thimble 12, and a standard circle is drawn by the motion trajectory of the chalk chuck 3, And the radius of the circle can be adjusted through the sliding seat 2. In addition, through the rotation effect of the rotating handle 8, it is used in conjunction with the thimble 12 when drawing a circle, which is convenient for rotating the whole device and achieves the purpose of drawing a circle quickly. A right angle of the main body 1 of the triangle ruler is The side is sleeved with a sliding seat 2, the upper end of the sliding seat 2 is threadedly connected with a fixing bolt 201, one end of the fixing bolt 201 is inserted into the interior of the sliding bore 10, and the top of another right-angled side of the main body 1 of the triangle is provided with a rotating handle 8, One side of the sliding seat 2 is fixedly connected with a chalk chuck 3 , a clamping slot 301 is opened inside the chalk chuck 3 , one end of the clamping slot 301 is provided with an elastic metal sheet 17 , and the other end of the clamping slot 301 is threadedly connected with an adjusting rod 18 One end of the adjustment rod 18 is rotatably connected with a push plate 19, and the push plate 19 is slidably connected to the inside of the card slot 301, and is set by the cooperation of the chalk chuck 3, the card slot 301, the elastic metal sheet 17, the adjustment rod 18 and the push plate 19. , in the process of use, the clamped chalk can be adjusted, so that the chalk is always kept level with the thimble, so as to achieve the purpose of making circles convenient. This teaching aid integrates straight line, standard circle, standard angle and friction demonstration, and The overall design is reasonable and convenient for teaching and use. The retractable protractor 4 is divided into a fixed section 401 and a telescopic section 402. The fixed section 401 is fixedly connected to the inside of the right angle of the main body 1 of the triangle, and one end of the benchmark 7 is rotated and connected to the center of the fixed section 401. Through the cooperative setting of the retractable protractor 4 and the benchmark rod 7, the benchmark rod 7 rotates along the center of the protractor to realize the measurement and drawing of the angle. When the angle is too large, the telescopic section 402 can be driven to slide along the fixed section 401, so as to realize the measurement of the obtuse angle. As shown in the drawing, a limit slot 13 is set between the fixed section 401 of the retractable protractor 4 and the right angle of the main body 1 of the triangle ruler, a spring clip 14 is placed inside the limit slot 13, and a first stop is fixedly connected under one end of the telescopic section 402 Block 15, a second block 16 is fixedly connected above the other end of the telescopic section, the spring clip 14 is clamped between the first block 15 and the main body 1 of the triangle ruler, and the back baffle 5 and the main body 1 of the triangle ruler are connected through the rotation of the shaft , the friction plate 6 is fixedly connected to the inside of the back baffle 5, the inner side of the back baffle 5 is fixedly connected with a suction cup 9, the middle of the oblique side of the main body 1 of the triangle is fixedly connected with a handle 20, and the number of suction cups 9 is three, three The suction cups 9 are respectively located at the three top corners of the back baffle 5 and pass through the back The baffle 5 and the suction cups 9 are arranged in cooperation, and the back baffle 5 is adsorbed on the back of the main body 1 of the triangle ruler through three suction cups 9, so that the back of the main body 1 of the triangle ruler is flat and easy to be attached to the blackboard. In addition, the back baffle 5 can be unfolded along the rotating shaft, and then adsorbed on the blackboard through the suction cup 9, so that the friction plate 6 is exposed.

In use, when the back baffle 5 is closed, a protractor and a combined compass can be used to draw a standard circle and a standard angle value; the combined compass takes the thimble 12 as the fulcrum, and the distance between the chalk chuck 3 and the thimble 12 is The radius is drawn in a circle, and the chalk chuck 3 passes through the sliding seat 2 to slide and adjust along the right-angle side of the main body 1 of the triangle ruler. In addition, under the action of turning the handle 8, it can quickly rotate and draw a circle, which is convenient for teachers to teach and use; flip the back baffle After 5, the friction plate 6 can be unfolded to realize the demonstration of different friction coefficients in the physics course, which is convenient for physics teachers to teach and use, and the back baffle 5 can be adsorbed on the back of the main body 1 of the triangle ruler through the three suction cups 9, so that the main body of the triangle ruler can be absorbed. The back of 1 is flat and easy to apply to the blackboard.

To sum up, the teaching portable simple teaching aid is set by the cooperation of the sliding seat 2, the thimble 12 and the rotating handle 8, so that the teaching aid takes the thimble 12 as the center, and draws a standard circle by using the movement track of the chalk chuck 3, And the radius of the circle can be adjusted through the sliding seat 2. In addition, through the rotation effect of the rotating handle 8, it is used in conjunction with the thimble 12 when drawing a circle, which is convenient to rotate the entire device and achieve the purpose of drawing a circle quickly. Through the back baffle 5 and the suction cup 9, the back baffle 5 is adsorbed on the back of the main body 1 of the triangle ruler through three suction cups 9, so that the back of the main body 1 of the triangle ruler is flat and easy to be attached to the blackboard. unfolded, and then adsorbed on the blackboard through the suction cup 9, so that the friction plate 6 is exposed. This combined structure satisfies a variety of use methods and achieves the purpose of facilitating teaching and use. , the benchmark 7 rotates along the center of the protractor to realize the measurement and drawing of the angle. When the angle is too large, the telescopic section 402 can be driven to slide along the fixed section 401, so as to realize the measurement and drawing of the obtuse angle; 301. The cooperative arrangement of the elastic metal sheet 17, the adjusting rod 18 and the push plate 19 can realize the adjustment of the clamped chalk during use, so that the chalk is always kept level with the thimble, so as to achieve the purpose of convenient rounding. The teaching aids integrate straight line, standard circle, standard angle and friction force demonstration, and the overall design is reasonable, which is convenient for teaching and use.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a" does not preclude the presence of additional identical elements in a process, method, article, or device that includes the element.

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

Claims (9)

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).

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