CN211294406U - Teaching demonstration device for physical horizontal projectile motion - Google Patents
Teaching demonstration device for physical horizontal projectile motion Download PDFInfo
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- CN211294406U CN211294406U CN201922409331.1U CN201922409331U CN211294406U CN 211294406 U CN211294406 U CN 211294406U CN 201922409331 U CN201922409331 U CN 201922409331U CN 211294406 U CN211294406 U CN 211294406U
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- platform
- rail
- fixedly connected
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- fixed mounting
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Abstract
The utility model discloses a teaching demonstration device for physical horizontal projectile motion, which comprises two groups of brackets, wherein a base is fixedly connected between the bottoms of the two groups of brackets, and a platform is fixedly connected between the tops of the two groups of brackets; a rail is fixedly arranged on the platform, an iron ball is placed on the rail, an ejection bin is fixedly arranged on the top side of the left part of the platform, the rail is positioned in the ejection bin, a spring is fixedly connected to the left side of an inner cavity of the ejection bin, and a push plate is fixedly connected to the right end of the spring; the top fixed mounting of base has the crane, the top fixed mounting of crane has the elevating platform, the top fixed mounting of elevating platform has the slide rail, sliding connection has the sand table on the slide rail, be filled with soft sand in the sand table. The utility model discloses a control variable's method audio-visual shows the relevant influence factor of horizontal displacement that the object falls to the ground, and the motion is judged in the intensive study.
Description
The technical field is as follows:
the utility model relates to a physical teaching field, concretely relates to teaching presentation device of physics horizontal projectile motion.
Background art:
the object is thrown in a horizontal direction at a certain initial velocity, and if the object is subjected to the action of gravity only, such a movement is called a flat throw movement. The horizontal projectile motion can be regarded as the combined motion of uniform linear motion in the horizontal direction and free falling motion in the vertical direction. The object in horizontal projectile motion is subjected to constant force, so that the horizontal projectile motion is uniform variable speed curvilinear motion, and the motion trail of the horizontal projectile object is a parabola. The horizontal projectile motion is that the time of the curvilinear motion horizontal projectile motion is only related to the vertical height of the projectile point; the horizontal displacement of an object on the ground is related to the time (vertical height) and the horizontal initial velocity.
In the physical teaching, in order to visually display the influence factors related to the horizontal displacement of the falling object, a control variable method is adopted for research, and a special display device is required to be used.
The utility model has the following contents:
the utility model aims to solve the technical problem that a teaching presentation device of physics horizontal projectile motion is provided, the audio-visual horizontal displacement relevant influence factor that shows the object and fall to the ground through controlled variable's method, the motion is judged in the intensive research.
The utility model discloses the technical problem that will solve adopts following technical scheme to realize: a teaching demonstration device for physical horizontal projectile motion comprises two groups of supports, wherein bases are fixedly connected between the bottoms of the two groups of supports, and platforms are fixedly connected between the tops of the two groups of supports;
a rail is fixedly arranged on the platform, an iron ball is placed on the rail, an ejection bin is fixedly arranged on the top side of the left part of the platform, the rail is positioned in the ejection bin, a spring is fixedly connected to the left side of an inner cavity of the ejection bin, and a push plate is fixedly connected to the right end of the spring;
the top fixed mounting of base has the crane, the top fixed mounting of crane has the elevating platform, the top fixed mounting of elevating platform has the slide rail, sliding connection has the sand table on the slide rail, be filled with soft sand in the sand table.
Preferably, the bottom of the bracket is fixedly provided with a support leg.
Preferably, the bracket on the right side is marked with a first scale.
Preferably, a second scale is arranged on the side wall of the sand table.
The utility model has the advantages that: the utility model discloses simple structure, convenient and practical controls the speed of launching the iron ball through the compression degree of spring, changes the initial velocity of iron ball, changes the height of sand table through the crane, changes the distance of vertical height, and the audio-visual horizontal displacement relevant influence factor that shows the object and fall to the ground through the method of controlled variable, the motion is judged in the intensive research for the more audio-visual understanding of student.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of a sand table of the present invention;
wherein: 1. a support; 2. a sand table; 3. a base; 4. a platform; 5. ejecting a bin; 6. a spring; 7. pushing the plate; 8. an iron ball; 9. a track; 10. a lifting frame; 11. a lifting platform; 12. a slide rail; 13. a support leg; 14. Soft sand; 15. a first scale; 16. and a second scale.
The specific implementation mode is as follows:
in order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Example 1: as shown in fig. 1-2, the teaching demonstration device for physical horizontal projectile motion comprises two groups of supports 1, wherein two groups of supports 1 are arranged, a base 3 is fixedly connected between the bottoms of the two groups of supports 1, and a platform 4 is fixedly connected between the tops of the two groups of supports 1;
the iron ball ejection device is characterized in that a rail 9 is fixedly installed on the platform 4, an iron ball 8 is placed on the rail 9, an ejection bin 5 is fixedly installed on the top side of the left portion of the platform 4, the rail 9 is located inside the ejection bin 5, a spring 6 is fixedly connected to the left side of an inner cavity of the ejection bin 5, a push plate 7 is fixedly connected to the right end of the spring 6, the speed of ejection of the iron ball is controlled through the compression degree of the spring, the rail can limit the iron ball, the limitation of the iron ball on the rail is guaranteed, and flat throwing is completed in the horizontal direction;
the top fixed mounting of base 3 has crane 10, crane 10's top fixed mounting has elevating platform 11, elevating platform 11's top fixed mounting has slide rail 12, sliding connection has sand table 2 on slide rail 12, sand table 2 is filled with soft sand 14, accomplishes the control regulation to elevating platform height through the crane, comes the sand table to release through the slide rail and is used for catching the iron ball, and soft sand is the drop point that is used for taking notes after the flat throw motion of iron ball.
Example 2: as shown in fig. 1-2, the teaching demonstration device for physical horizontal projectile motion comprises two groups of supports 1, wherein two groups of supports 1 are arranged, a base 3 is fixedly connected between the bottoms of the two groups of supports 1, and a platform 4 is fixedly connected between the tops of the two groups of supports 1;
the iron ball ejection device is characterized in that a rail 9 is fixedly installed on the platform 4, an iron ball 8 is placed on the rail 9, an ejection bin 5 is fixedly installed on the top side of the left portion of the platform 4, the rail 9 is located inside the ejection bin 5, a spring 6 is fixedly connected to the left side of an inner cavity of the ejection bin 5, a push plate 7 is fixedly connected to the right end of the spring 6, the speed of ejection of the iron ball is controlled through the compression degree of the spring, the rail can limit the iron ball, the limitation of the iron ball on the rail is guaranteed, and flat throwing is completed in the horizontal direction;
the top fixed mounting of base 3 has crane 10, crane 10's top fixed mounting has elevating platform 11, elevating platform 11's top fixed mounting has slide rail 12, sliding connection has sand table 2 on slide rail 12, sand table 2 is filled with soft sand 14, accomplishes the control regulation to elevating platform height through the crane, comes the sand table to release through the slide rail and is used for catching the iron ball, and soft sand is the drop point that is used for taking notes after the flat throw motion of iron ball.
The bottom of the support 1 is fixedly provided with support legs 13, so that the overall stability of the device is enhanced.
The support 1 on the excellent right side is marked with a first scale 15, so that the reading of the vertical distance can be facilitated.
The side wall of the sand table 2 is provided with a second scale 16, so that reading on a horizontal distance can be facilitated.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a teaching presentation device of physics flat throwing motion, includes support (1), its characterized in that: the device is characterized in that the supports (1) are provided with two groups, a base (3) is fixedly connected between the bottoms of the two groups of supports (1), and a platform (4) is fixedly connected between the tops of the two groups of supports (1);
a rail (9) is fixedly installed on the platform (4), an iron ball (8) is placed on the rail (9), an ejection bin (5) is fixedly installed on the top side of the left portion of the platform (4), the rail (9) is located inside the ejection bin (5), a spring (6) is fixedly connected to the left side of an inner cavity of the ejection bin (5), and a push plate (7) is fixedly connected to the right end of the spring (6);
the top fixed mounting of base (3) has crane (10), the top fixed mounting of crane (10) has elevating platform (11), the top fixed mounting of elevating platform (11) has slide rail (12), sliding connection has sand table (2) on slide rail (12), be filled with soft sand (14) in sand table (2).
2. A teaching demonstration apparatus of physical horizontal projectile motion as claimed in claim 1, wherein: and supporting legs (13) are fixedly arranged at the bottom of the support (1).
3. A teaching demonstration apparatus of physical horizontal projectile motion as claimed in claim 1, wherein: the bracket (1) on the right side is marked with a first scale (15).
4. A teaching demonstration apparatus of physical horizontal projectile motion as claimed in claim 1, wherein: and a second scale (16) is arranged on the side wall of the sand table (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922409331.1U CN211294406U (en) | 2019-12-28 | 2019-12-28 | Teaching demonstration device for physical horizontal projectile motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922409331.1U CN211294406U (en) | 2019-12-28 | 2019-12-28 | Teaching demonstration device for physical horizontal projectile motion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211294406U true CN211294406U (en) | 2020-08-18 |
Family
ID=72021024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922409331.1U Expired - Fee Related CN211294406U (en) | 2019-12-28 | 2019-12-28 | Teaching demonstration device for physical horizontal projectile motion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211294406U (en) |
-
2019
- 2019-12-28 CN CN201922409331.1U patent/CN211294406U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20211228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |