CN203276664U - Demonstrator for centripetal force - Google Patents
Demonstrator for centripetal force Download PDFInfo
- Publication number
- CN203276664U CN203276664U CN 201320223097 CN201320223097U CN203276664U CN 203276664 U CN203276664 U CN 203276664U CN 201320223097 CN201320223097 CN 201320223097 CN 201320223097 U CN201320223097 U CN 201320223097U CN 203276664 U CN203276664 U CN 203276664U
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- CN
- China
- Prior art keywords
- motor
- pallet
- dynamometer
- centripetal force
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A demonstrator for centripetal force comprises a base seat, a motor, a pallet, a force meter and a metal ball, wherein the base seat has a truncated cone-shaped structure, the top end of the base seat is fixedly connected to the bottom center of the pallet, the motor is installed in the base seat, the rotating shaft of the motor vertically passes through the center of the pallet, and the force meter is installed on the top end of the rotating shaft of the motor; and the top end of the force meter is provided with a liquid crystal display, the measuring end of the force meter is connected with a pull rope, and the other end of the pull rope is connected with the metal ball. The demonstrator for centripetal force is advantaged by ingenious structure and convenient usage and the like.
Description
Technical fieldThe utility model relates to a kind of teaching demonstration instrument, especially a kind of centripetal force testing tool.
Background technologyIn the junior-senior high school physics teaching, often can relate to the knowledge point of centripetal force.At present, in teaching, the teacher is difficult to find concrete presentation tool, can't effectively careful, eye-catching imparting knowledge to students.For this reason, we provide a kind of centripetal force presentation tool very necessary.
Summary of the inventionThe purpose of this utility model is to provide a kind of delicate structure, the centripetal force demonstrator that easy to use, operating effect is good.
The utility model comprises base, motor, pallet, dynamometer and Metal Ball, base is the truncated cone-shaped structure, and the top is fixed in the bottom center place of pallet, mounted motor in base, the pallet center of circle is vertically passed in the rotating shaft of motor, on the rotating shaft top of motor, dynamometer is installed; Described dynamometer top is provided with LCDs, and the measuring junction of dynamometer is connected with stay cord, and the stay cord other end is connected with Metal Ball.
Successively process concentric annular groove around the center of circle at tray surface.
Adjustment seat is equidistantly installed by edge at base end face.
During use, the user is placed in Metal Ball at one end of stay cord, Metal Ball is placed on pallet, then adjust the adjustment seat of base, the maintenance base top surface is horizontality, and last starter motor drives stay cord and Metal Ball rotation by rotating shaft after machine operation, Metal Ball is subjected to the centripetal force effect to pull dynamometer by stay cord, and the user can observe the pulling force size at the display screen of dynamometer.In addition, when Metal Ball was done uniform circular motion, spheroid can along fixing concentric annular groove rotation, be convenient to the user and observe.Moreover the user is the Metal Ball of replaceable Different Weight also, to reach different experiment purposes.
Compared with the prior art, the beneficial effects of the utility model are: reasonable in design, convenient and practical, simple to operate, and observation centripetal force size and variation that can be eye-catching.
Description of drawingsFig. 1 is spatial structure sketch of the present utility model.
Reference numeral: 1 is that base, 2 is that motor, 3 is that pallet, 4 is that dynamometer, 5 is that Metal Ball, 6 is adjustment seat.
EmbodimentIn spatial structure sketch of the present utility model shown in Figure 1, comprise base 1, motor 2, pallet 3, dynamometer 4 and Metal Ball 5, base is the truncated cone-shaped structure, the top is fixed in the bottom center place of pallet, mounted motor in base, the pallet center of circle is vertically passed in the rotating shaft of motor, on the rotating shaft top of motor, dynamometer is installed; Described dynamometer top is provided with LCDs, and the measuring junction of dynamometer is connected with stay cord, and the stay cord other end is connected with Metal Ball.
Successively process concentric annular groove around the center of circle at tray surface.
Claims (3)
1. centripetal force demonstrator, comprise base (1), motor (2), pallet (3), dynamometer (4) and Metal Ball (5), it is characterized in that: base (1) is the truncated cone-shaped structure, the top is fixed in the bottom center place of pallet (3), mounted motor (2) in base (1), pallet (3) center of circle is vertically passed in the rotating shaft of motor (2), on the rotating shaft top of motor (2), dynamometer (4) is installed; Described dynamometer (4) top is provided with LCDs, and the measuring junction of dynamometer (4) is connected with stay cord, and the stay cord other end is connected with Metal Ball (5).
2. a kind of centripetal force demonstrator according to claim 1 is characterized in that: successively process concentric annular groove around the center of circle on pallet (3) surface.
3. a kind of centripetal force demonstrator according to claim 1 is characterized in that: adjustment seat (6) is equidistantly installed by the edge in base (1) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223097 CN203276664U (en) | 2013-04-28 | 2013-04-28 | Demonstrator for centripetal force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223097 CN203276664U (en) | 2013-04-28 | 2013-04-28 | Demonstrator for centripetal force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203276664U true CN203276664U (en) | 2013-11-06 |
Family
ID=49507029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320223097 Expired - Fee Related CN203276664U (en) | 2013-04-28 | 2013-04-28 | Demonstrator for centripetal force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203276664U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875786A (en) * | 2017-04-09 | 2017-06-20 | 嘉兴新博信息科技有限公司 | A kind of rotary body teaching demonstration device |
| CN108648570A (en) * | 2018-06-20 | 2018-10-12 | 南京方易日辰电子科技有限公司 | A kind of physics teaching centrifugal force demonstration device |
| CN109523874A (en) * | 2018-10-29 | 2019-03-26 | 吴倜 | A kind of Middle School Physics centripetal force measuring and calculating experimental provision |
-
2013
- 2013-04-28 CN CN 201320223097 patent/CN203276664U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875786A (en) * | 2017-04-09 | 2017-06-20 | 嘉兴新博信息科技有限公司 | A kind of rotary body teaching demonstration device |
| CN106875786B (en) * | 2017-04-09 | 2019-02-12 | 北京伊顿国际幼儿园有限公司 | A kind of rotary body teaching demonstration device |
| CN108648570A (en) * | 2018-06-20 | 2018-10-12 | 南京方易日辰电子科技有限公司 | A kind of physics teaching centrifugal force demonstration device |
| CN109523874A (en) * | 2018-10-29 | 2019-03-26 | 吴倜 | A kind of Middle School Physics centripetal force measuring and calculating experimental provision |
| CN109523874B (en) * | 2018-10-29 | 2020-12-18 | 浙江如裕纺织科技股份有限公司 | Experimental device for measuring and calculating centripetal force of middle school physics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140428 |