CN204833830U - Stay cord drive formula is overweight, and appearance is demonstrated to weightlessness - Google Patents
Stay cord drive formula is overweight, and appearance is demonstrated to weightlessness Download PDFInfo
- Publication number
- CN204833830U CN204833830U CN201520500266.2U CN201520500266U CN204833830U CN 204833830 U CN204833830 U CN 204833830U CN 201520500266 U CN201520500266 U CN 201520500266U CN 204833830 U CN204833830 U CN 204833830U
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- fixed
- stay cord
- ruler
- spring
- derby
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Abstract
The utility model discloses a stay cord drive formula is overweight, and appearance is demonstrated to weightlessness, including fixed pulley and stay cord, the end of stay cord is fixed with a handle, the other one end of stay cord is fixed with a hanger plate, the below of hanger plate is fixed with the ruler and the slide rail of a vertical direction, the below of hanger plate still is fixed with a spring, the bottom of spring is fixed with the metal block, be equipped with the movable contact pole on the metal block, the metal block cup joints on the slide rail, be fixed with the contact on the ruler and contact down, it contacts to go up is located the top of movable contact pole, the stationary contact is located the below of movable contact pole, still be fixed with loudspeaker and a light on the ruler, be fixed with the battery on the hanger plate. The beneficial effects of the utility model are that: (1 ) simple structure, (2 ) clear helps the student to master this knowledge point, (3 )The handle of conveniently holding with a firm grip is avoided skidding.
Description
Technical field
The utility model relates to a kind of physics teaching utensil, particularly a kind of stay cord drive-type Demonstrator of Overweight and Zero Gravity.
Background technology
At present, in Process of Physics Teaching in Middle School, generally can relate to the explanation of the overweight of object and weightlessness, owing to lacking necessary demonstration equipment, can not effectively demonstrate out by this phenomenon, thus students understanding be got up more difficult, is unfavorable for that student grasps this knowledge architecture fast and accurately.
Summary of the invention
Problem to be solved in the utility model is: provide a kind of structure simple, stay cord drive-type Demonstrator of Overweight and Zero Gravity that is overweight and weightlessness can be demonstrated intuitively.
In order to solve the problem, stay cord drive-type Demonstrator of Overweight and Zero Gravity of the present utility model, comprise fixed pulley and be wound in the stay cord on fixed pulley, the end of described stay cord is fixed with a handle, the other one end of described stay cord is fixed with one piece of boatswain chair, the below of described boatswain chair is fixed with ruler and an one slide rail of a vertical direction, described slide rail parallels with ruler, the below of described boatswain chair is also fixed with a spring, the bottom of described spring is fixed with derby, described derby is socketed on slide rail, described derby is provided with movable feeler lever, described ruler is fixed with upper contact and lower contact, described upper contact is positioned at the top of movable feeler lever, described stationary contact is positioned at the below of movable feeler lever, described ruler is also fixed with loudspeaker and an illuminating lamp, described boatswain chair is fixed with battery, one end of described battery successively with spring, derby and movable feeler lever are in series, other one end of described battery is connected with illuminating lamp with loudspeaker respectively, described loudspeaker are connected with upper contact again, described illuminating lamp is connected with lower contact again.
Further, stay cord drive-type Demonstrator of Overweight and Zero Gravity of the present utility model, described ruler is provided with scale, and the outside surface of described handle is provided with decorative pattern.
The beneficial effect that the utility model obtains is: (1) structure is simple, (2) when concrete demonstration, pull handle fast, under the drive of handle, stay cord drives boatswain chair fast, ruler, spring, derby and movable feeler lever move upward, now whole device is in overweight state, spring now can shrink, and derby and movable feeler lever are under the drive of spring, can move upward along slide rail and contact with upper contact, after movable feeler lever contacts with upper contact, loudspeaker, upper contact, movable feeler lever, derby, the circuit turn-on of spring and battery composition, now loudspeaker can be sounded, thus confirm under overweight state, derby below spring and movable feeler lever move up, and confirmed by the sound that loudspeaker send, and the distance of movement just can be read by the length scale on ruler, in like manner, unclamp handle fast, boatswain chair, ruler, spring, derby and movable feeler lever can move down rapidly under gravity, now whole device is in state of weightlessness, spring now can stretch downwards, derby and movable feeler lever are under the drive of spring, can move downward along slide rail and contact with lower contact, when after movable feeler lever and lower contact, illuminating lamp, upper contact, movable feeler lever, derby, the circuit turn-on of spring and battery composition, now illuminating lamp can send light, thus confirm under overweight state, derby below spring and movable feeler lever can move down, and confirmed by the light that illuminating lamp sends, and the distance of movement can be read by the length scale on ruler, in sum, apparatus for demonstrating of the present utility model, the light that the sound sent by loudspeaker and illuminating lamp send confirms overweight and existence that is weightlessness respectively, simple and clear, contribute to this knowledge point of students, (3) outside surface of shaking hands is provided with decorative pattern, handle of conveniently holding with a firm grip, avoids skidding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is electrical schematic diagram of the present utility model.
In figure: 1, stay cord, 2, fixed pulley, 3, battery, 4, boatswain chair, 5, spring, 6, derby, 7, movable feeler lever, 8, lower contact, 9, ruler, 10, upper contact, 11, loudspeaker, 12, length scale, 13, illuminating lamp, 14, handle, 15, slide rail.
Embodiment
As depicted in figs. 1 and 2, stay cord drive-type Demonstrator of Overweight and Zero Gravity of the present utility model, the stay cord 1 comprising fixed pulley 2 and be wound on fixed pulley 2, the end of described stay cord 1 is fixed with a handle 14, described stay cord 1 is fixed with one piece of boatswain chair 4 in one end in addition, the below of described boatswain chair 4 is fixed with ruler 9 and an one slide rail 15 of a vertical direction, described slide rail 15 parallels with ruler 9, the below of described boatswain chair 4 is also fixed with a spring 5, the bottom of described spring 5 is fixed with derby 6, described derby 6 is socketed on slide rail 15, described derby 6 is provided with movable feeler lever 7, described ruler 9 is fixed with upper contact 10 and lower contact 8, described upper contact 10 is positioned at the top of movable feeler lever 7, described stationary contact 8 is positioned at the below of movable feeler lever 7, described ruler 9 is also fixed with loudspeaker 11 and an illuminating lamp 13, described boatswain chair 4 is fixed with battery 3, one end of described battery 3 successively with spring 5, derby 6 and movable feeler lever 7 are in series, other one end of described battery 3 is connected with illuminating lamp 13 with loudspeaker 11 respectively, described loudspeaker 11 are connected with upper contact 10 again, described illuminating lamp 13 is connected with lower contact 8 again, described ruler 9 is provided with length scale 12, and the outside surface of described handle 14 is provided with decorative pattern.
Stay cord drive-type Demonstrator of Overweight and Zero Gravity of the present utility model, structure is simple, when concrete demonstration, pull handle 14 fast, under the drive of handle 14, stay cord 4 drives boatswain chair 4 fast, ruler 9, spring 5, derby 6 and movable feeler lever 7 move upward, now whole device is in overweight state, spring 5 now can shrink, and derby 6 and movable feeler lever 7 are under the drive of spring 5, can move upward along slide rail 15 and contact with upper contact 10, after movable feeler lever 7 contacts with upper contact 10, loudspeaker 11, upper contact 10, movable feeler lever 7, derby 6, the circuit turn-on that spring 5 and battery 3 form, now loudspeaker 11 can be sounded, thus confirm under overweight state, derby 6 below spring 5 and movable feeler lever 7 can move up, and confirmed by the sound that loudspeaker 11 send, and the distance of movement can be read by the length scale 12 on ruler 9, in like manner, unclamp handle 14 fast, boatswain chair 4, ruler 9, spring 5, derby 6 and movable feeler lever 7 can move down rapidly under gravity, now whole device is in state of weightlessness, spring 5 now can stretch downwards, derby 5 and movable feeler lever 7 are under the drive of spring 5, can move downward along slide rail 15 and contact with lower contact 8, after movable feeler lever 7 contacts with lower contact 8, illuminating lamp 13, upper contact 10, movable feeler lever 7, derby 6, the circuit turn-on that spring 5 and battery 3 form, now illuminating lamp 13 can send light, thus confirm under overweight state, derby 6 below spring 5 and movable feeler lever 7 can move down, and confirmed by the light that illuminating lamp 13 sends, and the distance of movement can be read by the length scale 12 on ruler 9, in sum, apparatus for demonstrating of the present utility model, the light that the sound sent by loudspeaker 11 and illuminating lamp 13 send confirms overweight and existence that is weightlessness respectively, simple and clear, contribute to this knowledge point of students.
The outside surface of handle 14 is provided with decorative pattern, handle 14 of conveniently holding with a firm grip, avoids skidding.
Claims (2)
1. a stay cord drive-type Demonstrator of Overweight and Zero Gravity, it is characterized in that: comprise fixed pulley (2) and be wound in the stay cord (1) on fixed pulley (2), the end of described stay cord (1) is fixed with a handle (14), described stay cord (1) is fixed with one piece of boatswain chair (4) in one end in addition, the below of described boatswain chair (4) is fixed with ruler (9) and an one slide rail (15) of a vertical direction, described slide rail (15) parallels with ruler (9), the below of described boatswain chair (4) is also fixed with a spring (5), the bottom of described spring (5) is fixed with derby (6), described derby (6) is socketed on slide rail (15), described derby (6) is provided with movable feeler lever (7), described ruler (9) is fixed with upper contact (10) and lower contact (8), described upper contact (10) is positioned at the top of movable feeler lever (7), described stationary contact (8) is positioned at the below of movable feeler lever (7), described ruler (9) is also fixed with a loudspeaker (11) and an illuminating lamp (13), described boatswain chair (4) is fixed with battery (3), one end of described battery (3) successively with spring (5), derby (6) and movable feeler lever (7) are in series, other one end of described battery (3) is connected with illuminating lamp (13) with loudspeaker (11) respectively, described loudspeaker (11) are connected with upper contact (10) again, described illuminating lamp (13) is connected with lower contact (8) again.
2. stay cord drive-type Demonstrator of Overweight and Zero Gravity according to claim 1, it is characterized in that: described ruler (9) is provided with length scale (12), the outside surface of described handle (14) is provided with decorative pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500266.2U CN204833830U (en) | 2015-07-06 | 2015-07-06 | Stay cord drive formula is overweight, and appearance is demonstrated to weightlessness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500266.2U CN204833830U (en) | 2015-07-06 | 2015-07-06 | Stay cord drive formula is overweight, and appearance is demonstrated to weightlessness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204833830U true CN204833830U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500266.2U Expired - Fee Related CN204833830U (en) | 2015-07-06 | 2015-07-06 | Stay cord drive formula is overweight, and appearance is demonstrated to weightlessness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204833830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251743A (en) * | 2016-08-24 | 2016-12-21 | 合肥凌翔信息科技有限公司 | A kind of little motor vehicle drive system of physics teaching experiment |
| CN112265886A (en) * | 2020-11-25 | 2021-01-26 | 广东省特种设备检测研究院梅州检测院 | Elevator alarm device based on Internet of things |
-
2015
- 2015-07-06 CN CN201520500266.2U patent/CN204833830U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251743A (en) * | 2016-08-24 | 2016-12-21 | 合肥凌翔信息科技有限公司 | A kind of little motor vehicle drive system of physics teaching experiment |
| CN106251743B (en) * | 2016-08-24 | 2019-01-11 | 合肥凌翔信息科技有限公司 | A kind of small motor vehicle drive system of physics teaching experiment |
| CN112265886A (en) * | 2020-11-25 | 2021-01-26 | 广东省特种设备检测研究院梅州检测院 | Elevator alarm device based on Internet of things |
| CN112265886B (en) * | 2020-11-25 | 2022-04-01 | 广东省特种设备检测研究院梅州检测院 | Elevator alarm device based on Internet of things |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160706 |