CN218729579U - A Geography Teaching Aid Demonstrating the Relationship of Three-Ball Movement - Google Patents

Abstract

The utility model discloses a geographical teaching aid of demonstration three balls motion relation relates to three ball appearance technical field, including the bottom plate, four first recesses have been seted up to the upper surface of bottom plate, and the equal sliding connection of inner wall of every first recess has the support column, and the top of bottom plate is provided with the ring gear, four support columns all with ring gear fixed connection. It can be through the bottom plate, the handle, the inserted bar, the support column, first expanding spring, first fixed plate, the second fixed plate, remove the dish, first recess, the second recess, the third expanding spring, the effect of dismantling and installing the device can be realized to mutually supporting between splint and the second rotating electrical machines, can make the device more convenient when carrying, through the ring gear, the simulation earth, first rotating electrical machines, the simulation moon, the dwang, the simulation sun, the gear, the connecting rod, mutually supporting between dead lever and the second rotating electrical machines can let the audio-visual observation sun of student, the change of motion between earth and the moon, in order to help the change of the more deep understanding nature of student.

Description

A Geography Teaching Aid for Demonstrating the Relationship of Three-Ball Movement

technical field

The utility model relates to the technical field of a three-ball instrument, in particular to a geography teaching aid for demonstrating the relationship between three-ball movements.

Background technique

The tripod, also known as the moon-earth movement instrument, is an instrument for astronomy teaching and astronomy popularization. It consists of three small balls representing the sun, the earth and the moon, and has a mechanical linkage device to demonstrate the relationship between the three balls and the resulting some astronomical phenomena.

The tripod is mainly used in geography teaching, providing specific reference for explaining season changes, day and night changes, moon phase changes, etc., allowing students to intuitively observe changes in nature, and helping students understand the sun, the earth and the earth more deeply. The change of motion between the moons, the current existing tripods are relatively inconvenient to carry when the geography teacher is in class due to their large volume when in use.

According to a geography teaching aid disclosed in the patent No. CN205665954U, the device is convenient to explain in class when it is used, and it is conducive to deepening students' understanding and observation of the movement between the sun, the earth and the moon, but the device When in use, the volume is large, and it is inconvenient for teachers to carry it in class, and it may fall during the carrying process, causing damage to the device; therefore, we provide a geography teaching aid that demonstrates the relationship between the three-ball movement to solve the above problems.

Utility model content

The purpose of the utility model is to provide a geography teaching aid for demonstrating the three-ball movement relationship in order to make up for the deficiencies in the prior art.

In order to achieve the above object, the utility model provides the following technical solutions: a geography teaching aid for demonstrating the relationship between the three-ball movement, including a bottom plate, four first grooves are opened on the upper surface of the bottom plate, each of the first grooves The inner walls of the bottom plate are all slidably connected with support columns, and a gear ring is arranged above the bottom plate, and the four support columns are fixedly connected with the gear ring, and the upper surface of the bottom plate is fixedly connected with four first fixed plates, each of which The inner walls of the first fixing plate are all slidably connected to the insertion rods, and the four insertion rods are respectively slidably connected to the four support columns. The outer surface of each of the insertion rods is fixedly connected with a moving plate, and each of the first The outer surface of the fixed plate is fixedly connected with the first telescopic spring, and the four first telescopic springs are fixedly connected with the four moving plates respectively, and the upper surface of the bottom plate is provided with a second groove, and the second groove The inner wall of the inner wall is slidingly connected with a second rotating motor, and the upper surface of the bottom plate is fixedly connected with two symmetrical second fixing plates, and the sides of the two second fixing plates close to each other are fixedly connected with a third telescopic spring One end of the two third telescopic springs close to each other is fixedly connected with splints, the output shaft end of the second rotating motor is fixedly connected with a simulated sun, and the outer surface of the simulated sun is fixedly connected with a rotating rod, the The left end of the rotating rod is fixedly connected with a first rotating motor, and the output shaft end of the first rotating motor is fixedly connected with a simulated earth, and a gear is arranged inside the gear ring, and the gear is meshed with the gear ring. The upper surface of the fixed rod is fixedly connected with a fixed rod, the top of the fixed rod is fixedly connected with a simulated earth, the outer surface of the fixed rod is rotatably connected with a connecting rod, and the connecting rod is fixedly connected with the output shaft end of the second rotating motor.

Further, two symmetrical handles are fixedly connected to the outer surface of the bottom plate, and the surface of each handle is passivated.

Further, a protective cover is fixedly connected to the outer surface of each handle, and anti-slip lines are provided on the outer surface of each protective cover.

Further, a handle is fixedly connected to the outer surface of each of the moving plates, and an anti-slip pattern is provided on the outer surface of each of the handles.

Further, the inner wall of each second fixing plate is slidably connected with a limiting rod, and the two limiting rods are respectively fixedly connected with the two splints.

Further, the outer surface of each limit rod is fixedly connected with a pull plate, and the outer surface of each pull plate is provided with anti-skid lines.

Further, a second telescopic spring is fixedly connected to the sides of the two pull plates that are close to each other, and the two second telescopic springs are respectively fixedly connected to the two second fixing plates.

Compared with the prior art, the geography teaching aid for demonstrating the three-ball movement relationship has the following beneficial effects:

1. The utility model adopts the base plate, the handle, the insert rod, the support column, the first telescopic spring, the first fixed plate, the second fixed plate, the moving plate, the first groove, the second groove, the third telescopic spring, The mutual cooperation between the splint and the second rotating motor can realize the disassembly and installation of the device, which can make the device more convenient to carry, through the gear ring, the simulated earth, the first rotating motor, the simulated moon, the rotating rod, the simulated The mutual cooperation between the sun, the gear, the connecting rod, the fixed rod and the second rotating motor can allow students to intuitively observe the movement changes among the sun, the earth and the moon, so as to help students have a deeper understanding of the changes in nature.

2. The utility model can make it more convenient for the operator to carry the bottom plate through the mutual cooperation between the handle and the protective cover. The handle can make it more convenient for the operator to pull the moving plate, and the splint can be adjusted by the limit rod. It acts as a position limiter, which can increase the stability of the device. The pull plate can make it more convenient for the operator to pull the limit rod to move, and the elastic force generated when the second telescopic spring deforms can drive the pull plate to automatically reset.

Description of drawings

Fig. 1 is a schematic view of the front view of the utility model;

Fig. 2 is the utility model left view structure diagram;

Fig. 3 is the structural representation of the utility model bottom plate;

Fig. 4 is an enlarged schematic diagram of the structure at A in Fig. 1 of the present utility model.

In the figure: 1. Bottom plate; 2. Grip; 3. Inserting rod; 4. Handle; 5. Support column; Rotating rod; 11, simulated sun; 12, gear; 13, protective cover; 14, first telescopic spring; 15, first fixed plate; 16, connecting rod; 17, fixed rod; 18, second fixed plate; 19, 20, the first groove; 21, the second groove; 22, the pulling plate; 23, the second telescopic spring; 24, the third telescopic spring; 25, splint; 26, the second rotating motor; 27, limit bit pole.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

This embodiment provides a geography teaching aid that demonstrates the relationship between the three-ball movement. The device can be used to disassemble and install the device, which can make the device more convenient to carry and allow students to intuitively observe changes in nature to help To help students gain a deeper understanding of the changes in nature.

Referring to Figures 1 to 1, a geography teaching aid demonstrating the relationship between the three-ball movement includes a base plate 1, which is made of a material with high hardness and light weight, which can increase the service life of the device and make it more convenient for geography teachers to carry it. , and the bottom plate 1 is hinged by a hinge and can be folded.

The outer surface of the bottom plate 1 is fixedly connected with two symmetrical handles 4, the surface of each handle 4 is passivated, and the outer surface of each handle 4 is fixedly connected with a protective cover 13, and the outer surface of each Anti-slip lines are provided on the outer surface, and the mutual cooperation between the handle 4 and the protective cover 13 can make it more convenient for the operator to carry the bottom plate 1 .

The upper surface of the base plate 1 is provided with four first grooves 20, and the inner wall of each first groove 20 is slidably connected with a support column 5. When the wear is small, it can effectively increase the service life of the device.

A toothed ring 6 is arranged above the bottom plate 1, and the four support columns 5 are all fixedly connected with the toothed ring 6, and the inner wall of the toothed ring 6 is provided with teeth.

The upper surface of the bottom plate 1 is fixedly connected with four first fixed plates 15, and the inner wall of each first fixed plate 15 is slidably connected with the insertion rods 3, and the four insertion rods 3 are respectively slidably connected with the four support columns 5, and each insertion rod The outer surface of 3 is fixedly connected with the movable plate 19, and the outer surface of each first fixed plate 15 is fixedly connected with the first telescopic spring 14, and the four first telescopic springs 14 are fixedly connected with the four movable plates 19 respectively.

The supporting column 5 can be limited by the insertion rod 3, and the elastic force generated when the first telescopic spring 14 deforms can drive the movable plate 19 to reset automatically. 3 The abrasion generated during sliding is small, which can effectively increase the service life of the device.

The outer surface of each movable plate 19 is fixedly connected with a handle 2 , and the outer surface of each handle 2 is provided with anti-slip lines. The handle 2 can make the operator more convenient when pulling the movable plate 19 .

The upper surface of the bottom plate 1 is provided with a second groove 21, and the inner wall of the second groove 21 is slidingly connected with a second rotating motor 26. The friction coefficient of the inner wall of the second groove 21 is relatively small, and the friction coefficient generated when the second rotating motor 26 slides. The wear is small, which can effectively increase the stable service life of the device.

The upper surface of the bottom plate 1 is fixedly connected with two symmetrical second fixed plates 18, and the sides of the two second fixed plates 18 close to each other are fixedly connected with the third telescopic spring 24, and the two third telescopic springs 24 are close to each other. One end of each is fixedly connected with a clamping plate 25, and the elastic force generated when the third telescopic spring 24 is deformed can push the clamping plate 25 to clamp and fix the second rotating motor 26.

The inner wall of each second fixed plate 18 is all slidably connected with the limit rod 27, and the two limit rods 27 are fixedly connected with the two clamping plates 25 respectively, and the clamping plate 25 can be played as a limit by the limit rod 27, which can increase device stability.

The outer surface of each limit rod 27 is fixedly connected with a pull plate 22, and the outer surface of each pull plate 22 is provided with anti-skid lines, and the operator can move more easily when pulling the limit rod 27 by the pull plate 22. convenient.

The sides of the two pull plates 22 close to each other are fixedly connected with second telescopic springs 23, and the two second telescopic springs 23 are respectively fixedly connected with the two second fixed plates 18, and the elastic force generated when the second telescopic springs 23 deform Can drive pull plate 22 to reset automatically.

The output shaft end of the second rotating motor 26 is fixedly connected with the simulated sun 11 , and the simulated sun 11 can be driven to rotate by the second rotating motor 26 .

The outer surface of the simulated sun 11 is fixedly connected with the rotating rod 10, the left end of the rotating rod 10 is fixedly connected with the first rotating motor 8, and the output shaft end of the first rotating motor 8 is fixedly connected with the simulated earth 7, as the simulated sun 11 rotates It can drive the rotating rod 10 to rotate, and then can drive the first rotating motor 8 to rotate, thereby driving the simulated moon 9 to rotate, and the first rotating motor 8 can drive the simulated moon 9 to rotate.

The inside of the gear ring 6 is provided with a gear 12, the gear 12 is meshed with the gear ring 6, the upper surface of the gear 12 is fixedly connected with a fixed rod 17, and the top of the fixed rod 17 is fixedly connected with the simulated earth 7, and the outer surface of the fixed rod 17 rotates A connecting rod 16 is connected, and the connecting rod 16 is fixedly connected with the output shaft end of the second rotating electrical machine 26 .

The second rotating motor 26 can drive the connecting rod 16 to rotate, and then can drive the fixed rod 17 to revolve, and then can drive the simulated earth 7 to revolve. With the rotation of the fixed rod 17, the gear 12 can be driven to rotate inside the gear ring 6. Revolution, so that the gear 12 can be driven to rotate, and then the fixed rod 17 can be driven to automatically, so that the purpose of driving the simulated earth 7 to rotate can be achieved.

Through the device, students can learn more intuitively the changes in the movement between the sun, the earth and the moon.

Working principle: when the device is installed, the support column 5 first needs to be inserted into the first groove 20, and then the elastic force generated when the first telescopic spring 14 is deformed drives the moving plate 19 to automatically reset, and then can drive the insertion rod 3 reset, enter the inside of the support column 5, realize the limit to the support column 5, then put the second rotating motor 26 into the inside of the second groove 21, and then pass the elastic force generated when the third telescopic spring 24 is deformed Drive the splint 25 to clamp and fix the second rotating motor 26, place the gear 12 inside the gear ring 6 while placing the second rotating motor 26, and start the second rotating motor at the same time when the device needs to be used for demonstration 26 and the first rotating motor 8, can drive the simulated sun 11 to rotate by the second rotating motor 26, along with the rotation of the simulated sun 11 can drive the rotating rod 10 to rotate, and then can drive the first rotating motor 8 to rotate, thereby can Drive the simulated moon 9 to rotate, the first rotating motor 8 can drive the simulated moon 9 to rotate, the second rotating motor 26 can drive the connecting rod 16 to rotate, and then the fixed rod 17 can be driven to revolve, and then the simulated earth 7 can be driven Carrying out revolution, along with the rotation of fixed rod 17 can drive gear 12 to carry out revolution in the inside of gear ring 6, thereby can drive gear 12 to carry out rotation, and then can drive fixed rod 17 to carry out automatic, thereby can reach and drive simulated earth 7 to carry out rotation Purpose.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. The utility model provides a demonstration three balls sports relation's geographical teaching aid, includes bottom plate (1), its characterized in that: the upper surface of the bottom plate (1) is provided with four first grooves (20), the inner wall of each first groove (20) is connected with a support column (5) in a sliding manner, a toothed ring (6) is arranged above the bottom plate (1), the four support columns (5) are fixedly connected with the toothed ring (6), the upper surface of the bottom plate (1) is fixedly connected with four first fixing plates (15), the inner wall of each first fixing plate (15) is connected with an inserted bar (3) in a sliding manner, the four inserted bars (3) are respectively connected with the four support columns (5) in a sliding manner, the outer surface of each inserted bar (3) is fixedly connected with a movable plate (19), the outer surface of each first fixing plate (15) is fixedly connected with a first telescopic spring (14), the four first telescopic springs (14) are respectively and fixedly connected with the four movable plates (19), the upper surface of the bottom plate (1) is provided with a second groove (21), the inner wall of the second groove (21) is fixedly connected with a second rotary motor (26), the fixed surface of the bottom plate (1) is fixedly connected with two second telescopic springs (18), and the third fixing plates (24) are fixedly connected with two telescopic springs (24), the output shaft end fixedly connected with of second rotating electrical machines (26) simulates sun (11), the outer fixed surface of simulation sun (11) is connected with dwang (10), the left end fixedly connected with of dwang (10) first rotating electrical machines (8), the output shaft end fixedly connected with of first rotating electrical machines (8) simulates earth (7), the inside of ring gear (6) is provided with gear (12), gear (12) and ring gear (6) mesh mutually, the last fixed surface of gear (12) is connected with dead lever (17), the top fixedly connected with of dead lever (17) simulates earth (7), the surface rotation of dead lever (17) is connected with connecting rod (16), connecting rod (16) and the output shaft end fixedly connected with of second rotating electrical machines (26).

2. A geography teaching aid for demonstrating the relation of three sports according to claim 1, which is characterized in that: the outer surface of the bottom plate (1) is fixedly connected with two symmetrical handles (4), and the surface intersection of each handle (4) is passivated.

3. A geographic teaching aid for demonstrating the relationship of three sports, as claimed in claim 2, wherein: every the equal fixedly connected with protective sheath (13) of surface of handle (4), every anti-skidding line has all been seted up to the surface of protective sheath (13).

4. A geographic teaching aid for demonstrating the relation of three sports, as claimed in claim 1, wherein: the outer surface of each movable disc (19) is fixedly connected with a handle (2), and anti-skid grains are arranged on the outer surface of each handle (2).

5. A geographic teaching aid for demonstrating the relation of three sports, as claimed in claim 1, wherein: the inner wall of each second fixing plate (18) is connected with a limiting rod (27) in a sliding mode, and the two limiting rods (27) are fixedly connected with the two clamping plates (25) respectively.

6. A geographical teaching aid for demonstrating the relation of three sports according to claim 5, wherein: the outer surface of each limiting rod (27) is fixedly connected with a pull disc (22), and anti-skid grains are arranged on the outer surface of each pull disc (22).

7. A geographical teaching aid for demonstrating the relation of three sports according to claim 6, wherein: two draw equal fixedly connected with second expanding spring (23) in the side that dish (22) are close to each other, two second expanding spring (23) respectively with two second fixed plates (18) fixed connection.

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