CN202816220U - Fastest descending line demonstration device - Google Patents
Fastest descending line demonstration device Download PDFInfo
- Publication number
- CN202816220U CN202816220U CN 201220493490 CN201220493490U CN202816220U CN 202816220 U CN202816220 U CN 202816220U CN 201220493490 CN201220493490 CN 201220493490 CN 201220493490 U CN201220493490 U CN 201220493490U CN 202816220 U CN202816220 U CN 202816220U
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- box
- spin
- fastest
- slideway
- curve
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Abstract
The utility model discloses a fastest descending line demonstration device which includes a pedestal, a ball collecting box which is connected with one end of the pedestal, and a vertical plate which is arranged on the other end of the ball collecting box. The top of the vertical plate is provided with a ball emitting box, and the height of the ball emitting box is higher than the height of the ball collecting box. A straight slideway and a curve slideway are connected with the ball emitting box and the ball collecting box. Through adopting the above structure, the fastest descending line demonstration device has the following advantages: 1. two steel balls slide from the straight slideway and the curve slideway respectively, and the steel ball on the curve slideway gets to the finish line first, so the existence of the fastest descending curve line is proved, the demonstration effect is excellent, and people can understand easily; 2. the structure is simple.
Description
Technical field
The utility model relates to the fastest a kind of prompt drop line apparatus for demonstrating.
Background technology
In teaching process, teacher to illustrate two quality, equirotal spin simultaneously respectively by linear ramp, curve slideway (the fastest prompt drop line) from the downward landing of starting point, when the spin of curve slideway arrives first this problem of terminal point, the theoretical discussion is difficult to make us experiencing, and the people who can do nothing to help study understands this problem.
The utility model content
Technical problem to be solved in the utility model is for the deficiencies in the prior art, to provide a kind of convenient the fastest prompt drop line apparatus for demonstrating of understanding.
For solving the problems of the technologies described above, the technical solution of the utility model is: the fastest a kind of prompt drop line apparatus for demonstrating, comprise base, be connected to base one end the spin receiving box, be connected to the riser of the spin receiving box other end, the top of described riser is provided with the spin launch-box, the height of described spin launch-box is higher than described spin receiving box, is connected with respectively linear ramp, curve slideway between described spin launch-box and the spin receiving box.
Described spin is steel ball.
Described spin launch-box is provided with the steel ball thumb wheel mechanism.
The utility model adopts said structure, have the following advantages: 1, two steel balls slide from linear ramp, curve slideway respectively, and the steel ball on the curve slideway arrives first terminal point, have proved that the curve of the fastest prompt drop line exists, play well demonstration effect, make things convenient for the people to understand; 2, simple in structure.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is cross section structure synoptic diagram of the present utility model;
Fig. 2 is external structure synoptic diagram of the present utility model;
In Fig. 1 ~ Fig. 2,1, base; 2, spin receiving box; 3, riser; 4, spin launch-box; 5, linear ramp; 6, curve slideway.
Embodiment
Such as Fig. 1 ~ the fastest a kind of prompt drop line apparatus for demonstrating shown in Figure 2, comprise base 1, be connected to base 1 one ends spin receiving box 2, be connected to the riser 3 of spin receiving box 2 other ends, the top of riser 3 is provided with spin launch-box 4, the height of spin launch-box 4 is higher than described spin receiving box 2, is connected with respectively linear ramp 5, curve slideway 6 between spin launch-box 4 and the spin receiving box 2.Be provided with dividing plate between two slideways, two slideway spin are independent of each other.Spin is steel ball.Spin launch-box 4 is provided with the steel ball thumb wheel mechanism, makes things convenient for the emission of steel ball.
Straight line and curve slideway are arranged respectively on the inclined-plane, and starting point is all identical with the terminal point height.Two quality, equirotal spin are simultaneously from the downward landing of starting point, and the spin on curve (the fastest prompt drop line) slideway arrives first terminal point.Galileo proposed in 1630 that a prompt drop line the fastest must be arranged between 2, was curve.The curve that has proved the fastest prompt drop line exists, and plays well demonstration effect, makes things convenient for the people to understand.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection domain of the present utility model.
Claims (3)
1. the fastest prompt drop line apparatus for demonstrating, it is characterized in that: comprise base (1), be connected to base (1) one end spin receiving box (2), be connected to the riser (3) of spin receiving box (2) other end, the top of described riser (3) is provided with spin launch-box (4), the height of described spin launch-box (4) is higher than described spin receiving box (2), is connected with respectively linear ramp (5), curve slideway (6) between described spin launch-box (4) and the spin receiving box (2).
2. the fastest a kind of prompt drop line apparatus for demonstrating according to claim 1, it is characterized in that: described spin is steel ball.
3. the fastest a kind of prompt drop line apparatus for demonstrating according to claim 1, it is characterized in that: described spin launch-box (4) is provided with steel ball thumb wheel mechanism (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493490 CN202816220U (en) | 2012-09-25 | 2012-09-25 | Fastest descending line demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493490 CN202816220U (en) | 2012-09-25 | 2012-09-25 | Fastest descending line demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816220U true CN202816220U (en) | 2013-03-20 |
Family
ID=47875066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220493490 Expired - Fee Related CN202816220U (en) | 2012-09-25 | 2012-09-25 | Fastest descending line demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816220U (en) |
-
2012
- 2012-09-25 CN CN 201220493490 patent/CN202816220U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150925 |
|
| EXPY | Termination of patent right or utility model |