CN204926621U - Even presentation device that tests speed that changes speed of object - Google Patents
Even presentation device that tests speed that changes speed of object Download PDFInfo
- Publication number
- CN204926621U CN204926621U CN201520607487.XU CN201520607487U CN204926621U CN 204926621 U CN204926621 U CN 204926621U CN 201520607487 U CN201520607487 U CN 201520607487U CN 204926621 U CN204926621 U CN 204926621U
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- CN
- China
- Prior art keywords
- air track
- slide block
- tabula rasa
- speed
- side edge
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Abstract
The utility model discloses an even presentation device that tests speed that changes speed of object, it includes that the base that supports through the bracing piece is equipped with the cavity air track that the transversal right angled triangle of personally submitting took the gas pocket on it, air track's both ends are equipped with the end cover, the one end of a hose and air track's cavity intercommunication, the other end and the air pump connected of hose, air track is last just to be in be equipped with the slider rather than the looks adaptation on the lateral wall of two right -angle sides, the upper portion of slider is equipped with the door that is in the light, the door that is in the light is the U -shaped, and the right side is first barn door, and the left side is the second barn door, first barn door right side edge with the distance at second barn door right side edge is 1 centimetre, the both ends of base are equipped with the support respectively, be equipped with photoelectric switch on the support respectively, every photoelectric switch is linked together through a wire and a digital timer, adopt above -mentioned structure, realized simple structure, convenient operation, the directly perceived and effect that the student understands of being convenient for.
Description
Technical field
The even speed change of a kind of object that relates to the utility model tests the speed apparatus for demonstrating.
Background technology
At present; in physics teaching and social practice, often can measure the average velocity in the acceleration in the spot speed of jobbie movement, a certain interval and a certain interval, but understand difficulty teaching process middle school student; not directly perceived, affect learning interest and the learning quality of student.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, easy to operate, directly perceived and be convenient to the even speed change of object that student understands and test the speed apparatus for demonstrating.
The technical solution of the utility model is that the even speed change of a kind of object tests the speed apparatus for demonstrating, it comprises the pedestal 2 supported by support bar 1, it is characterized in that: the upper plane of described pedestal 2 is provided with the rectangular leg-of-mutton hollow air cushion guide rail 4 of xsect, the two ends of described air track 4 are provided with end cap 6, arbitrary described end cap 6 is provided with the valve 17 be connected with the cavity of described air track 4 hollow, described valve 17 is communicated with one end of a flexible pipe 7, the other end of described flexible pipe 7 is communicated with air pump 8, the sidewall of described air track 4 liang of right-angle sides is evenly equipped with some pores 5, described air track 4 is provided with the slide block 10 suitable with it on the sidewall of described two right-angle sides, the top of described slide block 10 is provided with light shield door 9, described light shield door 9 takes the shape of the letter U, right side is first gear tabula rasa 11, left side is second gear tabula rasa 12, the distance of described first gear tabula rasa 11 right side edge and described second gear tabula rasa 12 right side edge is 1 centimetre, the two ends of described pedestal 2 are respectively equipped with support 13, described support 13 is respectively equipped with optoelectronic switch 14, each described optoelectronic switch 14 is connected with a digital timer 15 by wire.
The technical solution of the utility model also has the top of described air track 4 two ends end cap 6 to be respectively equipped with buffing pad 16.
The technical solution of the utility model also has described support bar 1 to be height-adjustable support bar, which is provided with hold-down nut 3.
The technical solution of the utility model also has the outer wall of described pedestal 2 to be provided with level meter 18.
The beneficial effects of the utility model the upper plane of described pedestal 2 are provided with the rectangular leg-of-mutton hollow air cushion guide rail 4 of xsect, the two ends of described air track 4 are provided with end cap 6, arbitrary described end cap 6 is provided with the valve 17 be connected with the cavity of described air track 4 hollow, described valve 17 is communicated with one end of a flexible pipe 7, the other end of described flexible pipe 7 is communicated with air pump 8, the sidewall of described air track 4 liang of right-angle sides is evenly equipped with some pores 5, described air track 4 is provided with the slide block 10 suitable with it on the sidewall of described two right-angle sides, the top of described slide block 10 is provided with light shield door 9, described light shield door 9 takes the shape of the letter U, right side is first gear tabula rasa 11, left side is second gear tabula rasa 12, the distance of described first gear tabula rasa 11 right side edge and described second gear tabula rasa 12 right side edge is 1 centimetre, the two ends of described pedestal 2 are respectively equipped with support 13, described support 13 is respectively equipped with optoelectronic switch 14, each described optoelectronic switch 14 is connected with a digital timer 15 by wire, when surveying slide block 10 speed at the uniform velocity, the height of adjustment support bar 1 makes pedestal 2 be in horizontality, open air pump 8 gas evenly to spray from some pores 5 of air track 4, slide block 10 to be placed on air track 4 and to apply certain external force, slide block 10 floats on air track 4, friction force is less negligible, slide block 10 moves along air track 4 liang of right-angle sides, because slide block 10 is provided with light shield door 9, after light shield door 9 arrives optoelectronic switch 14, data can be passed to digital timer 15, record slide block 10 like this by first gear tabula rasa 11 right side edge to the time by second gear tabula rasa 12 right side edge, because the distance of first gear tabula rasa 11 right side edge and described second gear tabula rasa 12 right side edge is 1 centimetre, just can record by speed during this optoelectronic switch 14 according to speed formula, in like manner, also slide block 10 can be recorded by speed during another optoelectronic switch 14, substantially mutually linear uniform motion is all through comparing the translational speed being in horizontality sliding block 10 when pedestal 2, when surveying the speed of the even speed change of slide block 10, the height of adjustment support bar 1 makes one end of pedestal 2 higher than the other end, open air pump 8 gas evenly to spray from some pores 5 of air track 4, slide block 10 to be placed on air track 4 and to apply certain external force, slide block 10 moves along air track 4 liang of right-angle sides, slide block 10 is by after two optoelectronic switches 14, data can be passed to digital timer 15, record slide block 10 like this by first gear tabula rasa 11 right side edge to the time by second gear tabula rasa 12 right side edge, because the distance of first gear tabula rasa 11 right side edge and described second gear tabula rasa 12 right side edge is 1 centimetre, just can record by speed during two optoelectronic switches 14 according to speed formula, slide block 10 can also be recorded by the time used between two optoelectronic switches 14, slide block 10 can be calculated by the acceleration between two optoelectronic switches 14 like this by acceleration company, slide block 10 by the speed of the first optoelectronic switch 14 to deduct by the second optoelectronic switch 14 speed then divided by slide block 10 by the time used between two optoelectronic switches 14, record slide block 10 like this for uniformly accelerated motion, thus it is simple to achieve structure, easy to operate, directly perceived and be convenient to the effect that student understands.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In Fig. 11, support bar, 2, pedestal, 3, nut, 4, air track, 5, pore, 6, end cap, 7, flexible pipe, 8, air pump, 9, light shield door, 10, slide block, 11, first gear tabula rasa, 12, second gear tabula rasa, 13, support, 14, optoelectronic switch, 15, digital timer, 16, buffing pad, 17, valve, 18, level meter.
Embodiment
According to Fig. 1, the even speed change of a kind of object that relates to the utility model tests the speed apparatus for demonstrating, it comprises the pedestal 2 supported by support bar 1, described support bar 1 is height-adjustable support bar, which is provided with hold-down nut 3, the outer wall of described pedestal 2 is provided with level meter 18, and the upper plane of described pedestal 2 is provided with the rectangular leg-of-mutton hollow air cushion guide rail 4 of xsect, the two ends of described air track 4 are provided with end cap 6, and the top of described air track 4 two ends end cap 6 is respectively equipped with buffing pad 16, arbitrary described end cap 6 is provided with the valve 17 be connected with the cavity of described air track 4 hollow, described valve 17 is communicated with one end of a flexible pipe 7, the other end of described flexible pipe 7 is communicated with air pump 8, the sidewall of described air track 4 liang of right-angle sides is evenly equipped with some pores 5, described air track 4 is provided with the slide block 10 suitable with it on the sidewall of described two right-angle sides, the top of described slide block 10 is provided with light shield door 9, described light shield door 9 takes the shape of the letter U, right side is first gear tabula rasa 11, left side is second gear tabula rasa 12, the distance of described first gear tabula rasa 11 right side edge and described second gear tabula rasa 12 right side edge is 1 centimetre, the two ends of described pedestal 2 are respectively equipped with support 13, described support 13 is respectively equipped with optoelectronic switch 14, each described optoelectronic switch 14 is connected with a digital timer 15 by wire, this digital timer 15 is known technology, when surveying slide block 10 speed at the uniform velocity, the height of adjustment support bar 1 makes pedestal 2 be in horizontality, open air pump 8 gas evenly to spray from some pores 5 of air track 4, slide block 10 to be placed on air track 4 and to apply certain external force, slide block 10 floats on air track 4, friction force is less negligible, slide block 10 moves along air track 4 liang of right-angle sides, because slide block 10 is provided with light shield door 9, after light shield door 9 arrives optoelectronic switch 14, data can be passed to digital timer 15, record slide block 10 like this by first gear tabula rasa 11 right side edge to the time by second gear tabula rasa 12 right side edge, because the distance of first gear tabula rasa 11 right side edge and described second gear tabula rasa 12 right side edge is 1 centimetre, just can record by speed during this optoelectronic switch 14 according to speed formula, in like manner, also slide block 10 can be recorded by speed during another optoelectronic switch 14, substantially mutually linear uniform motion is all through comparing the translational speed being in horizontality sliding block 10 when pedestal 2, when surveying the speed of even speed change of slide block 10, the height of adjustment support bar 1 makes one end of pedestal 2 higher than the other end, open air pump 8 gas evenly to spray from some pores 5 of air track 4, slide block 10 to be placed on air track 4 and to apply certain external force, slide block 10 moves along air track 4 liang of right-angle sides, slide block 10 is by after two optoelectronic switches 14, data can be passed to digital timer 15, record slide block 10 like this by first gear tabula rasa 11 right side edge to the time by second gear tabula rasa 12 right side edge, because the distance of first gear tabula rasa 11 right side edge and described second gear tabula rasa 12 right side edge is 1 centimetre, just can record by speed during two optoelectronic switches 14 according to speed formula, slide block 10 can also be recorded by the time used between two optoelectronic switches 14, slide block 10 can be calculated by the acceleration between two optoelectronic switches 14 like this by acceleration company, slide block 10 by the speed of the first optoelectronic switch 14 to deduct by the second optoelectronic switch 14 speed then divided by slide block 10 by the time used between two optoelectronic switches 14, record slide block 10 like this for uniformly accelerated motion, thus it is simple to achieve structure, easy to operate, directly perceived and be convenient to the effect that student understands.
Claims (4)
1. the even speed change of object tests the speed apparatus for demonstrating, it comprises the pedestal (2) supported by support bar (1), it is characterized in that: the upper plane of described pedestal (2) is provided with the rectangular leg-of-mutton hollow air cushion guide rail (4) of xsect, the two ends of described air track (4) are provided with end cap (6), arbitrary described end cap (6) is provided with the valve (17) be connected with the cavity of described air track (6) hollow, described valve (17) is communicated with one end of a flexible pipe (7), the other end of described flexible pipe (7) is communicated with air pump (8), the sidewall of described air track (4) two right-angle side is evenly equipped with some pores (5), described air track (4) is gone up and on the sidewall of described two right-angle sides, is provided with the slide block (10) suitable with it, the top of described slide block (10) is provided with light shield door (9), described light shield door (9) takes the shape of the letter U, right side is first gear tabula rasa (11), left side is second gear tabula rasa (12), the distance of described first gear tabula rasa (11) right side edge and described second gear tabula rasa (12) right side edge is 1 centimetre, the two ends of described pedestal (2) are respectively equipped with support (13), described support (13) is respectively equipped with optoelectronic switch (14), each described optoelectronic switch (14) is connected with a digital timer (15) by wire.
2. the even speed change of object according to claim 1 tests the speed apparatus for demonstrating, it is characterized in that: the top at described air track (4) two ends end cap (6) is respectively equipped with buffing pad (16).
3. the even speed change of object according to claim 1 and 2 tests the speed apparatus for demonstrating, it is characterized in that: described support bar (1) is height-adjustable support bar, which is provided with hold-down nut (3).
4. the even speed change of object according to claim 3 tests the speed apparatus for demonstrating, it is characterized in that: the outer wall of described pedestal (2) is provided with level meter (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607487.XU CN204926621U (en) | 2015-08-08 | 2015-08-08 | Even presentation device that tests speed that changes speed of object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607487.XU CN204926621U (en) | 2015-08-08 | 2015-08-08 | Even presentation device that tests speed that changes speed of object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204926621U true CN204926621U (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520607487.XU Expired - Fee Related CN204926621U (en) | 2015-08-08 | 2015-08-08 | Even presentation device that tests speed that changes speed of object |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204926621U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898202A (en) * | 2017-04-24 | 2017-06-27 | 王国锋 | Integrate the experimental bench of physics teaching and Students ' Learning |
| CN107088443A (en) * | 2017-04-24 | 2017-08-25 | 刘畅 | Junior middle school student's laboratory table |
| CN111122906A (en) * | 2019-12-05 | 2020-05-08 | 安徽皖仪科技股份有限公司 | Calibration method for three-point laser type light-cutting speed and acceleration tester |
| CN112802384A (en) * | 2021-01-14 | 2021-05-14 | 山东师范大学 | Mechanical experiment equipment, system and method based on air cushion guide rail |
-
2015
- 2015-08-08 CN CN201520607487.XU patent/CN204926621U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898202A (en) * | 2017-04-24 | 2017-06-27 | 王国锋 | Integrate the experimental bench of physics teaching and Students ' Learning |
| CN107088443A (en) * | 2017-04-24 | 2017-08-25 | 刘畅 | Junior middle school student's laboratory table |
| CN106898202B (en) * | 2017-04-24 | 2019-07-05 | 温州翔达教仪有限公司 | Integrate the experimental bench of physics teaching and student's study |
| CN111122906A (en) * | 2019-12-05 | 2020-05-08 | 安徽皖仪科技股份有限公司 | Calibration method for three-point laser type light-cutting speed and acceleration tester |
| CN112802384A (en) * | 2021-01-14 | 2021-05-14 | 山东师范大学 | Mechanical experiment equipment, system and method based on air cushion guide rail |
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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: 20151230 Termination date: 20160808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |