CN212624568U

CN212624568U - Four-season cause demonstration instrument

Info

Publication number: CN212624568U
Application number: CN202021707947.3U
Authority: CN
Inventors: 吕方怡; 黄运米; 伍绍宇; 吴海鹏
Original assignee: Wenzhou University
Current assignee: Wenzhou University
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-02-26
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a four seasons cause demonstration appearance, including the globe, be provided with the arcuate guide on the globe, the fixed globe support frame that is provided with of arcuate guide lower extreme, the fixed solar term pointer that is provided with of globe support frame lower extreme, solar term pointer lower extreme is provided with the gas conservation dish, the vertical solar term dish pivot of wearing to be equipped with in gas conservation dish middle part, the pot head is equipped with the pivot sleeve under the gas conservation dish pivot, the fixed base that is provided with of pivot sleeve lower extreme, the fixed light source platform that is provided with in gas conservation dish pivot upper end, be provided with the simulation sun on the light source platform. By the technical scheme, the demonstration effect of the experiment and the operability of the experiment are greatly improved, the interest of students in science is increased, the understanding of the students on knowledge is deepened, and the teaching effect is obviously improved. The demonstration device has the advantages of reasonable structural design, simple structure, convenience in use, good demonstration effect and good practicability.

Description

Four-season cause demonstration instrument

Technical Field

The utility model relates to a teaching demonstration appearance technical field, concretely relates to four seasons cause demonstration appearance.

Background

The related contents of the sun and the earth are relatively abstract and difficult to understand for most students in middle and primary schools, particularly primary students, strong space imagination is needed, and many related phenomena and principles cannot be directly obtained, so that the students can be helped to understand only by means of simple teaching aids such as a globe and the like. However, the method is very arduous to explain, and students have great difficulty in understanding and mastering and poor classroom effect. For example, for the problem of "how to form throughout the year", many classmates know that the earth rotates and revolves around the sun, and the orbit of the earth's revolution is elliptical; however, the cause of the four seasons is erroneously known, and it is a common view that the earth revolves around the sun, and when the earth is close to the sun, summer season is observed, and when the earth is far from the sun, winter season is observed.

At present, teachers often use a flashlight or a candle as the sun and a globe as the earth to rotate around a light source when demonstrating four-season causes in class. However, in such a demonstration device, it is not always guaranteed that the direction of the earth's axis inclination is kept constant during the revolution of the globe around the sun, and it is not possible to vividly and clearly demonstrate that the formation of the four seasons is due to the direct or oblique sun-rays, and it is difficult to perfectly correct the erroneous recognition that the formation of the four seasons is considered to be the distance between the earth and the sun. In addition, the light sources of the demonstration instruments are all provided with flashlights, candles or bulbs as light sources, the intensity of the light sources is weak, and the sunshine range of the demonstration instruments cannot be observed at all after the light sources reach the simulated earth.

In addition, the existing four-season cause demonstration instruments can not carry out comparison experiments, and can not help students to effectively master the important function of the inclination of the earth axis on the four-season cause.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a four seasons cause demonstration appearance that structural design is reasonable, simple structure, convenient to use, demonstration are effectual and the practicality is good.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a four seasons cause of formation demonstration appearance, includes the globe, be provided with the arcuate guide on the globe, the fixed globe support frame that is provided with of arcuate guide lower extreme, globe support frame lower extreme is fixed and is provided with the solar term pointer, solar term pointer lower extreme is provided with the gas conservation dish, the vertical solar term dish pivot of wearing to be equipped with in gas conservation dish middle part, the pot head is equipped with the pivot sleeve under the gas conservation dish pivot, the fixed base that is provided with of pivot sleeve lower extreme, the fixed light source platform that is provided with in gas conservation dish pivot upper end, be provided with the simulation sun on the light source platform.

The utility model discloses further set up to: a globe rotating shaft penetrates through the globe, two ends of the globe rotating shaft are fixedly connected with the arc-shaped guide rail, and the globe rotates 360 degrees along the globe rotating shaft, so that the rotation of the earth is simulated.

The utility model discloses still further set up to: a transverse support frame is fixedly arranged between the lower end of the globe support frame and the lower end of the air throttle disc rotating shaft, and the transverse support frame and the globe support frame form an L-shaped connecting frame together.

The utility model discloses still further set up to: the simulated sun is a bulb, a candle or a laser pen.

The utility model discloses still further set up to: the globe makes circular motion to simulate the revolution of the earth by rotating the L-shaped connecting bracket, and when the globe rotates, the simulated sun and the globe rotate together by the L-shaped connecting bracket.

The utility model discloses still further set up to: and the upper end surface of the air throttle disc is marked with 24 air throttle marks.

The utility model has the advantages that: compared with the prior art, the utility model discloses the structure sets up more rationally, through the utility model discloses four seasons cause demonstration appearance has improved the demonstration effect of experiment and the maneuverability of experiment greatly, increases the student to the interest of science, deepens the student to the understanding of knowledge, and the teaching effect is showing and is improving. The demonstration device has the advantages of reasonable structural design, simple structure, convenience in use, good demonstration effect and good practicability.

The invention is further described with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a perspective view of an embodiment of the present invention.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 and 2, the utility model discloses a four seasons cause demonstration appearance, including globe 1, be provided with arcuate guide 2 on the globe 1, the fixed globe support frame 3 that is provided with of arcuate guide 2 lower extreme, the fixed solar term pointer 4 that is provided with of 3 lower extremes of globe support frame, 4 lower extremes of solar term pointer are provided with gas conservation dish 5, the vertical solar term dish pivot 6 that wears to be equipped with in gas conservation dish 5 middle part, the pot head is equipped with pivot sleeve 7 under the solar term dish pivot 6, the fixed base 8 that is provided with of pivot sleeve 7 lower extreme, the fixed light source platform 9 that is provided with in 6 upper ends of solar term dish pivot, be provided with simulation sun 10 on the light source platform 9.

Preferably, a globe rotating shaft 11 penetrates through the globe 1, two ends of the globe rotating shaft 11 are fixedly connected with the arc-shaped guide rail 2, and the globe 1 rotates 360 degrees along the globe rotating shaft, so that the rotation of the earth is simulated.

A transverse support frame 12 is fixedly arranged between the lower end of the globe support frame 3 and the lower end of the throttle disc rotating shaft 6, and the transverse support frame 12 and the globe support frame 3 form an L-shaped connecting frame together.

The simulated sun 10 is a bulb, a candle or a laser pen, etc.

In the present embodiment, the globe 1 performs a circular motion to simulate the revolution of the earth by rotating the L-shaped link, and the simulated sun 10 rotates together with the globe 1 by rotating the L-shaped link when the globe 1 rotates.

And the upper end surface of the air throttle disc 5 is marked with an 24-throttle mark.

In practical application, a laser pen is placed on the light source platform to simulate direct solar rays, and the globe makes circular motion to simulate revolution of the earth by rotating the L-shaped connecting support; the laser pen rotates along with the globe under the action of the L-shaped connecting bracket in the rotation process of the globe.

In the process of simulating the revolution of the earth, the irradiation condition of the light rays emitted by the laser pen on the globe can be seen, and the position and the variation range of the direct solar light rays on the earth can be visually observed. Meanwhile, the four-season change of the earth can be reflected according to the fact that the throttle pointer connected with the L-shaped connecting support points to the corresponding position on the 24-throttle disc.

The upper end of the globe support frame and the lower end of the arc-shaped guide rail are locked through the fixing nuts, the angle of the globe is adjusted, and compared with what changes can occur in four seasons when the inclination angle of the globe rotating shaft changes. Through the utility model discloses a have improved the demonstration effect of experiment and the maneuverability of experiment greatly, have increased the student to the interest of science, have deepened the student to the understanding of knowledge, and the teaching effect is showing and is improving. The demonstration device has the advantages of reasonable structural design, simple structure, convenience in use, good demonstration effect and good practicability.

The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.

Claims

1. The utility model provides a four seasons cause demonstration appearance, includes globe (1), be provided with arc guide rail (2) on globe (1), arc guide rail (2) lower extreme is fixed and is provided with globe support frame (3), its characterized in that: globe support frame (3) lower extreme is fixed and is provided with solar term pointer (4), solar term pointer (4) lower extreme is provided with gas conservation dish (5), vertical gas conservation dish pivot (6) of wearing to be equipped with in gas conservation dish (5) middle part, the pot head is equipped with pivot sleeve (7) under gas conservation dish pivot (6), pivot sleeve (7) lower extreme is fixed and is provided with base (8), fixed light source platform (9) that is provided with in gas conservation dish pivot (6) upper end, be provided with simulation sun (10) on light source platform (9).

2. The four-season cause demonstration instrument according to claim 1, characterized in that: a globe rotating shaft (11) penetrates through the globe (1), two ends of the globe rotating shaft (11) are fixedly connected with the arc-shaped guide rail (2), and the globe (1) rotates 360 degrees along the globe rotating shaft, so that the rotation of the earth is simulated.

3. The four-season cause demonstration instrument according to claim 2, wherein: a transverse support frame (12) is fixedly arranged between the lower end of the globe support frame (3) and the lower end of the throttle disc rotating shaft (6), and the transverse support frame (12) and the globe support frame (3) form an L-shaped connecting frame together.

4. The four-season cause demonstration instrument according to claim 3, wherein: the simulated sun (10) is a bulb, a candle or a laser pen.

5. The four-season cause demonstration instrument according to claim 4, wherein: the globe (1) does circular motion to simulate the revolution of the earth by rotating the L-shaped connecting bracket, and when the globe (1) rotates, the simulated sun (10) and the globe (1) rotate together by the L-shaped connecting bracket.

6. The four-season cause demonstration instrument according to claim 3, wherein: and the upper end surface of the air throttle disc (5) is marked with an air throttle mark of 24.