CN217655616U - Experiment teaching aid for measuring earth radius - Google Patents
Experiment teaching aid for measuring earth radius Download PDFInfo
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- CN217655616U CN217655616U CN202221711403.3U CN202221711403U CN217655616U CN 217655616 U CN217655616 U CN 217655616U CN 202221711403 U CN202221711403 U CN 202221711403U CN 217655616 U CN217655616 U CN 217655616U
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- fixedly connected
- teaching aid
- pole setting
- earth
- globe
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Abstract
The utility model discloses a measure radial experiment teaching aid in earth, including the device base, top one side fixedly connected with of device base rotates the base, the top of rotating the base is rotated and is connected with the dwang, the top fixedly connected with globe of dwang, globe outer wall one side sliding connection has arc slip lug, arc slip lug's top fixedly connected with pole setting, one side bottom fixedly connected with fixed establishment of pole setting, one side top fixedly connected with angle display mechanism of pole setting. The utility model discloses a gliding pole setting of design and fixed establishment have realized the regulation to the pole setting, also can the direct display inclination of pole setting through design angle display mechanism simultaneously, have realized the demonstration in kind to measuring the earth radius.
Description
Technical Field
The utility model relates to a teaching experiment equipment technical field especially relates to measure radial experiment teaching aid of earth.
Background
The experimental teaching equipment expresses written knowledge more visually, and students can understand the knowledge more easily and thoroughly through demonstration of real objects.
The existing teaching equipment does not have an experimental teaching aid for measuring the earth, and students can only draw a two-dimensional graph and imagine the two-dimensional graph to understand the knowledge point when learning, so that some students are difficult to understand.
Therefore, it is necessary to provide an experimental teaching aid for measuring the radius of the earth to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that do not have the experiment teaching aid to measuring earth among the current teaching equipment, learn this knowledge point at the student and can only draw out the two-dimensional map and imagine in addition and understand through the mr, this just leads to some students to understand comparatively difficultly.
In order to solve the technical problem, the utility model discloses a technical scheme be: the experimental teaching aid for measuring the earth radius comprises a device base, wherein a rotating base is fixedly connected to one side of the top of the device base, and a rotating rod is rotatably connected to the top of the rotating base;
the top of the rotating rod is fixedly connected with a globe, one side of the outer wall of the globe is connected with an arc-shaped sliding protruding block in a sliding mode, and the top of the arc-shaped sliding protruding block is fixedly connected with a vertical rod;
the bottom of one side of pole setting fixedly connected with fixed establishment, the top fixedly connected with angle display mechanism of one side of pole setting.
The utility model discloses further set up to: the outer wall of the globe is provided with a groove corresponding to the arc-shaped sliding convex block.
Through above-mentioned technical scheme, guarantee that arc slip lug can slide on the globe, and then make the pole setting realize rotating on the globe.
The utility model discloses further set up to: the fixing mechanism comprises a nut fixing block, a bolt is spirally connected onto the nut fixing block, and a rubber pad is fixedly connected to the bottom of the bolt.
Through above-mentioned technical scheme, the bolt rotates on the nut fixed block, and then makes the rubber pad closely laminate with the outer wall of globe, reaches the effect of fixed pole setting.
The utility model further sets up to: and a threaded hole corresponding to the bolt is formed in the center of the nut fixing block.
Through above-mentioned technical scheme, guarantee that the bolt can realize the purpose that promotes the globe through the spiral rotation.
The utility model discloses further set up to: the angle display mechanism comprises a fixed column, the outer wall of the fixed column is rotatably connected with an angle gauge, and an angle pointer is fixedly connected to one side, far away from the vertical rod, of the fixed column.
Through above-mentioned technical scheme, the protractor can rotate on the fixed column because of the reason of gravity when the pole setting rotates, when sunshine shines the pole setting this moment, can leave the shadow LM, can read out the inclination of pole setting this moment through the angle pointer, the bottom of north returning line is shone to sunshine simultaneously and pass O point, angle LPM = AOM this moment, length and the length of its shadow LM when knowing the pole setting, can learn sin angle LPM, measure the length of AM again, according to arc length formula AM = n pi r/180, can learn the radius length of globe.
The utility model discloses further set up to: the protractor is provided with a through hole corresponding to the fixing column.
Through above-mentioned technical scheme, guarantee that the protractor can rotate in opposite directions along with the rotation of pole setting.
The utility model has the advantages as follows:
1. the utility model realizes the adjustment of the vertical rod by designing the sliding vertical rod and the fixing mechanism, and can directly display the inclination angle of the vertical rod by designing the angle display mechanism, thereby realizing the real object demonstration of measuring the radius of the earth;
2. the utility model avoids the damage to the surface of the globe caused by the pushing of the bolt when the upright stanchion is fixed through the design of the rubber pad;
3. the utility model discloses a fixed connection's angle pointer on design pivoted protractor and the fixed column can real-time demonstrate the inclination of pole setting.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is a structural view of the mechanism of the present invention;
fig. 4 is an exemplary diagram of angle calculation according to the present invention.
In the figure: 1. a device base; 2. rotating the base; 3. rotating the rod; 4. a globe; 5. an arc-shaped sliding projection; 6. erecting a rod; 7. a fixing mechanism; 701. a nut fixing block; 702. a bolt; 703. a rubber pad; 8. an angle display mechanism; 801. fixing a column; 802. a protractor; 803. an angle pointer; 9. and (4) returning to the line.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1 and 2, an experimental teaching aid for measuring the radius of the earth comprises a device base 1, wherein a rotating base 2 is fixedly connected to one side of the top of the device base 1, a rotating rod 3 is rotatably connected to the top of the rotating base 2, a globe 4 is fixedly connected to the top of the rotating rod 3, a groove corresponding to an arc-shaped sliding bump 5 is formed in the outer wall of the globe 4, it is ensured that the arc-shaped sliding bump 5 can slide on the globe 4, so that a vertical rod 6 can rotate on the globe 4, the arc-shaped sliding bump 5 is slidably connected to one side of the outer wall of the globe 4, and the vertical rod 6 is fixedly connected to the top of the arc-shaped sliding bump 5;
as shown in fig. 1-3, a fixing mechanism 7 is fixedly connected to the bottom of one side of the vertical rod 6, the fixing mechanism 7 includes a nut fixing block 701, a bolt 702 is spirally connected to the nut fixing block 701, a rubber pad 703 is fixedly connected to the bottom of the bolt 702, the bolt 702 rotates on the nut fixing block 701, so that the rubber pad 703 is tightly attached to the outer wall of the globe 4, and the vertical rod 6 is fixed, a threaded hole corresponding to the bolt 702 is formed in the center of the nut fixing block 701, and it is ensured that the bolt 702 can rotate spirally to push the globe 4;
as shown in fig. 1-4, an angle display mechanism 8 is fixedly connected to the top of one side of the vertical rod 6, the angle display mechanism 8 includes a fixed column 801, the outer wall of the fixed column 801 is rotatably connected with a protractor 802, the fixed column 801 is fixedly connected with an angle pointer 803 on the side far away from the vertical rod 6, when the vertical rod 6 rotates, the protractor 802 rotates on the fixed column 801 due to gravity, at this time, when sunlight irradiates the vertical rod 6, a shadow LM is left, the inclination angle of the vertical rod 6 at this time can be read through the angle pointer 803, meanwhile, the sunlight irradiates the bottom of the north return line 9 and passes through the O point, at this time, the angle LPM = AOM =, when the length of the vertical rod 6 and the length of the shadow LM are known, sin = LPM can be known, the length of AM is measured again, according to the arc length formula AM = n = r/180, the radius length of the globe 4 can be known, a through hole corresponding to the fixed column 801 is formed on the protractor 802, and it is ensured that the protractor 802 can rotate in opposite direction with the rotation of the vertical rod 6.
The utility model discloses when using, promote pole setting 6 and make arc sliding block 5 slide in the recess on 4 surfaces of globe, rethread rotation bolt 702 makes bolt 702 rotate on nut fixed block 701, and then promotes rubber pad 703 and hugs closely the surface of globe 4, reaches the purpose of fixed pole setting 6, and protractor 802 can rotate along with the rotation of pole setting 6 simultaneously, demonstrates the inclination of pole setting 6 in real time.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. Measure experiment teaching aid of earth radius, including device base (1), its characterized in that: a rotating base (2) is fixedly connected to one side of the top of the device base (1), and a rotating rod (3) is rotatably connected to the top of the rotating base (2);
a globe (4) is fixedly connected to the top of the rotating rod (3), an arc-shaped sliding convex block (5) is connected to one side of the outer wall of the globe (4) in a sliding mode, and a vertical rod (6) is fixedly connected to the top of the arc-shaped sliding convex block (5);
one side bottom fixedly connected with fixed establishment (7) of pole setting (6), one side top fixedly connected with angle display mechanism (8) of pole setting (6).
2. An experimental teaching aid for measuring the radius of the earth as claimed in claim 1, wherein: the outer wall of the globe (4) is provided with a groove corresponding to the arc-shaped sliding convex block (5).
3. An experimental teaching aid for measuring the radius of the earth as claimed in claim 1, wherein: the fixing mechanism (7) comprises a nut fixing block (701), a bolt (702) is spirally connected to the nut fixing block (701), and a rubber pad (703) is fixedly connected to the bottom of the bolt (702).
4. An experimental teaching aid for measuring the radius of the earth as claimed in claim 3, wherein: the center of the nut fixing block (701) is provided with a threaded hole corresponding to the bolt (702).
5. An experimental teaching aid for measuring the radius of the earth as claimed in claim 1, wherein: the angle display mechanism (8) comprises a fixing column (801), the outer wall of the fixing column (801) is connected with a protractor (802) in a rotating mode, and an angle pointer (803) is fixedly connected to one side, far away from the vertical rod (6), of the fixing column (801).
6. An experimental teaching aid for measuring the radius of the earth as claimed in claim 5, wherein: the protractor (802) is provided with a through hole corresponding to the fixing column (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221711403.3U CN217655616U (en) | 2022-07-05 | 2022-07-05 | Experiment teaching aid for measuring earth radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221711403.3U CN217655616U (en) | 2022-07-05 | 2022-07-05 | Experiment teaching aid for measuring earth radius |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217655616U true CN217655616U (en) | 2022-10-25 |
Family
ID=83686361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221711403.3U Active CN217655616U (en) | 2022-07-05 | 2022-07-05 | Experiment teaching aid for measuring earth radius |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217655616U (en) |
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2022
- 2022-07-05 CN CN202221711403.3U patent/CN217655616U/en active Active
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