CN201946177U - Multifunctional lever demonstration device for physical experiment - Google Patents
Multifunctional lever demonstration device for physical experiment Download PDFInfo
- Publication number
- CN201946177U CN201946177U CN2011200419996U CN201120041999U CN201946177U CN 201946177 U CN201946177 U CN 201946177U CN 2011200419996 U CN2011200419996 U CN 2011200419996U CN 201120041999 U CN201120041999 U CN 201120041999U CN 201946177 U CN201946177 U CN 201946177U
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- cross bar
- lever
- support
- physical experiment
- demonstration device
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Abstract
The utility model discloses a multifunctional lever demonstration device for a physical experiment, belonging to the field of teaching. The multifunctional lever demonstration device for the physical experiment comprises a base (1) and a support (2) which is arranged on the base (1), and is characterized in that the top end of the support (2) is rotatably connected with a cross bar (3) with scales (6), the cross bar (3) is a telescopic cross bar, the two ends of the cross bar (3) are respectively connected with fine-tuning nuts (4) through threads, and two hooks (5) are arranged below the cross bar (3) on the two sides of the support (2). The multifunctional lever demonstration device for the physical experiment has the advantages that the structure is simple, the demonstrator is convenient to operate, the length of a lever is adjustable, groups of experimental data can be obtained, the demonstrator is convenient to carry, not only can the basic principle of the lever be demonstrated, but also the principle of a balance can be demonstrated, and the workload of teachers can be effectively reduced.
Description
Technical field
The utility model relates to teaching field, and a kind of specifically Physical Experiment is with multi-functional lever apparatus for demonstrating.
Background technology
At present, in physics teaching, notion and laws many on the textbook all need to demonstrate by experiment and prove, with satisfy the student understand more intuitively and grasp gained knowledge, in mechanics teaching, especially when the demonstration lever principle, during the equilibrium condition of research lever, the teacher uses original lever teaching aid usually, these teaching aids all are made up of support and lever, and the function singleness of this lever only can be demonstrated lever basic function and principle, and length is non-adjustable, obtain multi-group data, just need carry the lever of different length and finish complex operation, not portable yet, increased teacher's work load.
Summary of the invention
It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and lever length is adjustable, be convenient for carrying, the ultimate principle of not only convenient demonstration lever, but and the principle of demonstration balance, the Physical Experiment that can effectively alleviate teacher's work load is with multi-functional lever apparatus for demonstrating.
In order to reach above purpose, the technical scheme that the utility model adopted is: this Physical Experiment is with multi-functional lever apparatus for demonstrating, comprise base and the support that is arranged on the described base, it is characterized in that: the top of described support is rotatably connected to the cross bar that has scale, described cross bar is telescopic cross bar, fine-tuning nut is gone up at the two ends of described cross bar respectively by being threaded, be provided with two hooks below the cross bar of support both sides.
The utility model is also implemented by following measure: described two hooks equate with distance between the described support.
The beneficial effects of the utility model are: by support is set on base, and is rotationally connected on support and has the cross bar of scale, can realize the basic function of lever by cross bar; Be set to telescopic structure by cross bar, make lever length adjustable like this, can elongate or shorten as required, conveniently different combinations is experimentized, can obtain multi-group data, use easy to carry; Be provided with two hooks below cross bar, by linking up with the demonstration that can realize the balance ultimate principle, one-object-many-purposes has alleviated teacher's work load.The utility model is simple in structure, and is easy to operate, and lever length is adjustable, thereby can obtain many group experimental datas, is convenient for carrying, and not only can demonstrate the lever ultimate principle, but and the principle of demonstration balance, can effectively alleviate teacher's work load.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Make the utility model with reference to accompanying drawing.This Physical Experiment comprises base 1 and the support 2 that is arranged on the base 1 with multi-functional lever apparatus for demonstrating, can make the utility model steady by this structure, is convenient to experiment.
Be rotatably connected to cross bar 3 on the top of support 2, cross bar 3 is telescopic cross bar, on cross bar 3, be provided with scale 6, can make the adjustable length of lever by telescopic cross bar, can elongate or shorten cross bar 3 as required like this, thereby different combinations is experimentized, obtain multi-group data, and use easy to carry.
Be provided with fine-tuning nut 4 at the two ends of cross bar 3, wherein, fine-tuning nut 4 is threaded with cross bar 3, can regulate the gravity at cross bar 3 two ends by fine-tuning nut 4, thereby the principle of lever is explained, and makes things convenient for the student intuitively to observe and start to test.
Below cross bar 1, be provided with two hooks 5, two both sides that hook 5 is positioned at support 2, two hooks 5 equate to the distances between the support 2, realize demonstration to the balance ultimate principle by hang pallet or other objects on hook 5, one-object-many-purposes has alleviated teacher's work load.
The utility model is simple in structure, and is easy to operate, and lever length is adjustable, thereby can obtain many group experimental datas, is convenient for carrying, and not only can demonstrate the lever ultimate principle, but and the principle of demonstration balance, can effectively alleviate teacher's work load.
Claims (2)
1. a Physical Experiment is with multi-functional lever apparatus for demonstrating, comprise base (1) and be arranged on support (2) on the described base (1), it is characterized in that: the top of described support (2) is rotatably connected to the cross bar (3) that has scale (6), described cross bar (3) is telescopic cross bar, fine-tuning nut (4) is gone up at the two ends of described cross bar (3) respectively by being threaded, be provided with two hooks (5) in the below of the cross bar (3) of support (2) both sides.
2. Physical Experiment according to claim 1 is characterized in that with multi-functional lever apparatus for demonstrating: described two hooks (5) equate with distance between the described support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200419996U CN201946177U (en) | 2011-02-21 | 2011-02-21 | Multifunctional lever demonstration device for physical experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200419996U CN201946177U (en) | 2011-02-21 | 2011-02-21 | Multifunctional lever demonstration device for physical experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946177U true CN201946177U (en) | 2011-08-24 |
Family
ID=44473514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200419996U Expired - Fee Related CN201946177U (en) | 2011-02-21 | 2011-02-21 | Multifunctional lever demonstration device for physical experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201946177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091497A (en) * | 2014-08-04 | 2014-10-08 | 朱彩玲 | Portable type lever for teaching |
| CN110634363A (en) * | 2019-10-31 | 2019-12-31 | 韩沐林 | Teaching aid for physical mechanics experiments in junior middle school |
-
2011
- 2011-02-21 CN CN2011200419996U patent/CN201946177U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091497A (en) * | 2014-08-04 | 2014-10-08 | 朱彩玲 | Portable type lever for teaching |
| CN110634363A (en) * | 2019-10-31 | 2019-12-31 | 韩沐林 | Teaching aid for physical mechanics experiments in junior middle school |
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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: 20110824 Termination date: 20120221 |