Direction position device for teaching

Abstract

The utility model relates to the technical field of teaching tools, in particular to a direction position device for teaching, which comprises a disc protractor, the top of a large fan-shaped plate is movably connected with a ruler, a small fan-shaped plate and the large fan-shaped plate are respectively matched with the disc protractor, the disc protractor is disc-shaped, and the small fan-shaped plate is fan-shaped. According to the direction position device for teaching, the axis of the direction position device is aligned with an observation point of an object needing to be measured, the fixed scale disc is placed on the object needing to be measured, the relation between the direction and the position can be visually displayed by rotating the small sector, and a ruler is used for measuring the distance between the position of the object and the observation point and observing the scale. After the teaching aid is used at a glance, the direction and the position can be more intuitively known, the direction and the position can be more accurately recognized, the angle and the distance can be measured, the teaching aid is vivid, visual and easy to master, and the learning interest and the enthusiasm of students are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a direction positioner used for teaching. Background Art

[0002] In the teaching of direction and position in primary school mathematics, the original teaching aids only include 180-degree protractors and rulers. When teaching, the protractor must be used to determine the direction and measure the angle. There is no direction marked on the protractor, so it is difficult for students to correctly use the protractor to measure the specific position of the object. When using a 180-degree protractor to measure different positions of an object, the protractor must be rotated multiple times to determine the position. During teaching, students cannot intuitively understand the relationship between direction and position. After determining the direction, the ruler is used to measure the distance. The two teaching aids, protractor and ruler, need to be used alternately to complete the teaching of direction and position. The steps are cumbersome, the speed is slow, the time is long, and the accuracy is poor. For this reason, we propose a direction positioner for teaching. Utility Model Content

[0003] The purpose of the utility model is to provide a direction positioner for teaching, so as to solve the problem that when the 180-degree protractor proposed in the above background technology measures different positions of an object, the protractor needs to be rotated several times to determine the position, and the students cannot intuitively understand the relationship between the orientation and the position during teaching. After the orientation is determined, the distance is measured using a ruler. The teaching of the knowledge points of direction and position needs to be completed by alternating the use of two teaching aids, the protractor and the ruler. The steps are relatively cumbersome, the speed is slow, the time is long, and the accuracy is poor. To achieve the above purpose, the utility model provides the following technical scheme: a direction positioner for teaching, comprising a disc protractor, the top of the disc protractor is movably connected with a small fan-shaped plate, the top of the small fan-shaped plate is movably connected with a large fan-shaped plate, the top of the large fan-shaped plate is movably connected with a ruler, the small fan-shaped plate and the large fan-shaped plate are respectively adapted to the disc protractor, the disc protractor is disc-shaped, and the small fan-shaped plate is fan-shaped.

[0004] Further preferably, a fixed scale one is provided on the top of the disc protractor and is distributed in a circular array on the top of the disc protractor, a through hole is provided inside the disc protractor, an annular sleeve one is movably connected to the top of the disc protractor, a through groove one is provided inside the annular sleeve one, fixed scales two are respectively provided on both sides of the top of the small fan-shaped plate and are symmetrically distributed on both sides of the top of the small fan-shaped plate, the small fan-shaped plate is fixedly connected to the side surface of the annular sleeve one, and the through groove one is adapted to the through hole.

[0005] Further preferably, the interior of the large fan-shaped plate is fixedly connected with an annular sleeve 2, the interior of the annular sleeve 2 is provided with a through groove 2, the through groove 2 is adapted to the through groove 1 and the through hole, and the top of the ruler is fixedly connected with a fixed scale 3 and the fixed scale 3 is distributed in a linear array.

[0006] Further preferably, an annular sleeve three is fixedly connected to one side of the ruler, a through groove three is opened inside the annular sleeve three, the through groove three is respectively matched with the through groove two, the through groove one and the through hole, and a rotating shaft is fixedly connected inside the through groove three.

[0007] Further preferably, both ends of the rotating shaft are respectively fixedly connected to limit plates and the two limit plates are symmetrically distributed, the bottom of one of the limit plates fits with the top of the annular sleeve three, and the top of the other limit plate fits with the bottom of the disc protractor.

[0008] Further preferably, the rotating shaft passes through the through groove three, the through groove two, the through groove one and the through hole in sequence, and the annular sleeve three, the annular sleeve two and the annular sleeve one are adapted to each other.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] In the utility model, the axis of the direction positioner is aligned with the observation point of the object to be measured, the fixed scale disk is placed on the object to be measured, and the relationship between the direction and the position can be intuitively displayed by rotating the small fan-shaped device. The distance from the position of the object to the observation point can be measured with a ruler, and the measurement result can be obtained by observing the scale. After using the teaching aid, students have a more intuitive understanding of the direction and position, and can more accurately identify the direction and position, and measure the angle and distance. The teaching aid is vivid, intuitive and easy to master, which improves their interest and enthusiasm in learning.

[0011] In the utility model, in addition to the basic direction indication function, the "direction positioner" can also let students understand the angles and distances between different directions through the corresponding degrees of the small fan-shaped four-way 90-degree bevel gauge, so as to better understand the spatial position relationship and measure the distance with a ruler, thereby achieving the effect of "three items in one" and improving classroom teaching efficiency. When students use the direction positioner to complete the practice homework in class, the accuracy rate reaches 98%, which directly reflects the effectiveness of teaching using the "direction positioner". Students' abilities in describing the position of objects, drawing simple route maps, etc. have also been enhanced, which further proves that the direction positioner teaching has a positive effect on the cultivation of students' sense of space.

[0012] In the utility model, the direction positioner can not only be used for mathematics teaching, but also can be combined with subjects such as geography and science to help students better understand the geographical locations of different regions and different natural phenomena, and promote interdisciplinary learning. The direction positioner is made of transparent organic board material, which is not only safe and durable, but also conforms to the environmental protection concept of modern education and improves measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional main structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall explosion structure of the utility model;

[0015] Figure 3 This is a side view of the three-dimensional structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0017] Figure 5 It is a front view three-dimensional structural schematic diagram of the utility model.

[0018] In the figure: 1. disc protractor; 2. fixed scale one; 3. through hole; 4. small sector plate; 5. annular sleeve one; 6. through slot one; 7. fixed scale two; 8. large sector plate; 9. annular sleeve two; 10. through slot two; 11. ruler; 12. fixed scale three; 13. annular sleeve three; 14. through slot three; 15. rotating shaft; 16. limit plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 5 The utility model provides a technical solution: a direction positioner for teaching, including a disc protractor 1, a small fan-shaped plate 4 is movably connected to the top of the disc protractor 1, a large fan-shaped plate 8 is movably connected to the top of the small fan-shaped plate 4, a ruler 11 is movably connected to the top of the large fan-shaped plate 8, the small fan-shaped plate 4 and the large fan-shaped plate 8 are respectively adapted to the disc protractor 1, the disc protractor 1 is disc-shaped, and the small fan-shaped plate 4 is fan-shaped.

[0021] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a fixed scale 12 is provided on the top of the disc protractor 1, and the fixed scale 12 is distributed in a circular array on the top of the disc protractor 1, a through hole 3 is provided inside the disc protractor 1, an annular sleeve 15 is movably connected to the top of the disc protractor 1, a through groove 16 is provided inside the annular sleeve 15, fixed scales 27 are provided on both sides of the top of the small fan-shaped plate 4, and the fixed scales 27 are symmetrically distributed on both sides of the top of the small fan-shaped plate 4, the small fan-shaped plate 4 is fixedly connected to the side surface of the annular sleeve 15, and the through groove 16 is matched with the through hole 3, an annular sleeve 29 is fixedly connected to the inside of the large fan-shaped plate 8, a through groove 20 is provided inside the annular sleeve 29, and the through groove 20 is matched with the through groove 16 and the through hole 3, and a fixed scale 3 12 is fixedly connected to the top of the ruler 11, and the fixed scale 3 12 is distributed in a linear array.

[0022] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a ring sleeve three 13 is fixedly connected to one side of the ruler 11, and a through groove three 14 is opened inside the ring sleeve three 13. The through groove three 14 is respectively matched with the through groove two 10, the through groove one 6 and the through hole 3. A rotating shaft 15 is fixedly connected inside the through groove three 14. The two ends of the rotating shaft 15 are respectively fixedly connected with limit plates 16 and the two limit plates 16 are symmetrically distributed. The bottom of one limit plate 16 fits with the top of the ring sleeve three 13, and the top of the other limit plate 16 fits with the bottom of the disc protractor 1. The rotating shaft 15 sequentially penetrates the through groove three 14, the through groove two 10, the through groove one 6 and the through hole 3, and the ring sleeve three 13, the ring sleeve two 9 and the ring sleeve one 5 are matched.

[0023] The use method and advantages of the utility model: When the direction positioner used for teaching is used, the working process is as follows:

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when the direction positioner for teaching is used, a fixed transparent disc protractor 1 with a fixed scale 2 is made of a transparent organic board. The disc protractor 1 is composed of four two-way ninety-degree angle gauges connected to a cross azimuth ruler, which is used to determine the direction of an object and assist in measuring the specific position of the object. At the same time, a small round hole is punched above the ninety-degree fixed scale 2 on the back of the disc protractor 1. When the user is giving a classroom lecture, the vacuum sticker is fixed on the appropriate position of the whiteboard where the azimuth diagram or drawing needs to be measured. The disc protractor 1 is mounted on the vacuum sticker through the small circular hole, which is convenient for teachers to operate and for students to observe the measurement results. At the same time, a through hole 3 is opened at the center of the disc protractor 1 as an observation point. The rotating shaft 15 can be combined with other components. At the same time, a small sector plate 4 with a fixed scale 27 having a radius smaller than the disc protractor 1 and an angle of 90 is connected to assist the disc protractor 1 in simply measuring the specific position of the object and drawing a picture, and a protruding annular shaft sleeve 15 is implanted in the arc of the small sector plate 4. The small sector plate A through groove 16 is punched at the center of the circle 4 as an observation point, which is also used to combine with other parts after adding the rotation axis 15. At the same time, a large sector plate 8 with a radius smaller than the small sector plate 4 and a degree of 270 degrees is connected to block the redundant information on the figure in the question except for the object to be found or measured, so as to highlight the object to be found or measured, so that students can see it at a glance. A through groove 210 is punched at the center of the large sector plate 8 as the object observation point, and the rotation axis 15 can be combined with other parts. Finally, a ruler 11 is connected, and its length is greater than the disk measurement. The radius of the protractor 1 is used to measure the distance on the map of an object whose length is greater than the radius of the small sector plate 4. A through groove 3 14 is made at the starting point of the zero fixed scale 3 12 of the ruler 11 as an observation point, and then combined with the rotating shaft 15 to form a teaching aid "position and orientation ruler". At the same time, the above four components, namely the disc protractor 1, the small sector plate 4, the large sector plate 8 and the ruler 11, are taken as the axis through the rotating shaft 15, and then fixed at both ends of the rotating shaft 15 by the limit plates 16 for fixing and limiting, and then glued with glue to form a teaching aid "position and orientation ruler".

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A direction positioner for teaching, comprising a disc protractor (1), characterized in that: The top of the disc protractor (1) is movably connected to a small fan-shaped plate (4), the top of the small fan-shaped plate (4) is movably connected to a large fan-shaped plate (8), the top of the large fan-shaped plate (8) is movably connected to a ruler (11), the small fan-shaped plate (4) and the large fan-shaped plate (8) are respectively adapted to the disc protractor (1), the disc protractor (1) is in the shape of a disc, and the small fan-shaped plate (4) is in the shape of a fan.

2. A direction positioner for teaching according to claim 1, characterized in that: The top of the disc protractor (1) is provided with a fixed scale one (2) and the fixed scale one (2) is distributed in a ring array on the top of the disc protractor (1); a through hole (3) is provided inside the disc protractor (1); the top of the disc protractor (1) is movably connected with an annular shaft sleeve one (5); a through groove one (6) is provided inside the annular shaft sleeve one (5); fixed scales two (7) are respectively provided on both sides of the top of the small fan-shaped plate (4) and the fixed scales two (7) are symmetrically distributed on both sides of the top of the small fan-shaped plate (4); the small fan-shaped plate (4) is fixedly connected to the side surface of the annular shaft sleeve one (5); and the through groove one (6) is adapted to the through hole (3).

3. A direction positioner for teaching according to claim 2, characterized in that: The large sector plate (8) is fixedly connected to an annular sleeve (9) inside, and a through groove (10) is provided inside the annular sleeve (9). The through groove (10) is matched with the through groove (6) and the through hole (3). The top of the ruler (11) is fixedly connected to a fixed scale (12), and the fixed scale (12) is distributed in a linear array.

4. A direction positioner for teaching according to claim 3, characterized in that: A third annular sleeve (13) is fixedly connected to one side of the ruler (11), a third through-groove (14) is provided inside the third annular sleeve (13), the third through-groove (14) is respectively matched with the second through-groove (10), the first through-groove (6) and the through-hole (3), and a rotating shaft (15) is fixedly connected inside the third through-groove (14).

5. A direction positioner for teaching according to claim 4, characterized in that: The two ends of the rotating shaft (15) are respectively fixedly connected to limit plates (16), and the two limit plates (16) are symmetrically distributed, the bottom of one of the limit plates (16) fits with the top of the annular sleeve three (13), and the top of the other limit plate (16) fits with the bottom of the disc protractor (1).

6. A direction positioner for teaching according to claim 5, characterized in that: The rotating shaft (15) passes through the through groove three (14), the through groove two (10), the through groove one (6) and the through hole (3) in sequence, and the annular sleeve three (13), the annular sleeve two (9) and the annular sleeve one (5) are matched with each other.

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