CN204680270U - A kind of inertial demonstration device - Google Patents
A kind of inertial demonstration device Download PDFInfo
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- CN204680270U CN204680270U CN201520265565.2U CN201520265565U CN204680270U CN 204680270 U CN204680270 U CN 204680270U CN 201520265565 U CN201520265565 U CN 201520265565U CN 204680270 U CN204680270 U CN 204680270U
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- vehicle frame
- cotton rope
- inertia
- inertial
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Abstract
A kind of inertial demonstration device, include vehicle frame (1), wheel (5), and the bead (4) at vehicle frame (1) top is connected to by cotton rope (3), it is characterized in that: described bead (4) is set to size visibly different 3-5 group ball-type, and be set to 3-5 group respectively by the top that cotton rope (3) is connected to vehicle frame (1); Protractor (2) is also provided with, the junction being centrally located at cotton rope (3) and vehicle frame (1) of described protractor (2) at the rear of each group cotton rope (3).The utility model can observe the formation of principle of inertia intuitively, and the dynamics of inertia varies in size, and can help the knowwhy of inertia in Students ' Learning physics, and can well combine with practice, and integral manufacturing cost is lower, is easy to spread.
Description
Technical field
The utility model relates to a kind of physics aided education learning device, is specifically related to a kind of inertial demonstration device.
Background technology
In physical teaching course, teacher is when explaining law of conservation of energy, and need with the uninteresting description of language, the bad understanding of student, teacher is very arduous, and work efficiency is low, at present, lacks a kind of teaching aid of energy ocular demonstration law of conservation of energy on the market.And when explaining principle of inertia, be also difficult to embody intuitively the principle of inertia only by the several examples in life, and the direction of inertia and dynamics.
China Patent Publication No. is CN203444674U, publication date is that the utility model instructions on February 19th, 2014 discloses " a kind of physical teaching aid ", this utility model is specifically related to a kind of physical teaching aid, comprise box-frame, connection cord, medicine ball, roller, described box-frame inner upper middle part is provided with connection cord; Described connection cord bottom is provided with medicine ball; Described box-frame bottom is provided with roller; Described box-frame design of material is clear glass; Described roller is set to 4.When using this utility model, loosed one's grip after roller rotating direction shifts certain altitude onto by medicine ball with hand, medicine ball is vacillated now to the left, now to the right under gravity and inertia effect, drives box-frame side-to-side movement; When medicine ball is static, box-frame gets back to original position.But this utility model structure, in concrete use, only can demonstrate law of conservation of energy, but demonstrating effect is bad, can not better embody the formation of inertia and dynamics, and the glass material used, add cost of manufacture, and frangible.
Utility model content
The purpose of this utility model be poor for the demonstrating effect existed in prior art, high in cost of production is not enough, provides a kind of inertial demonstration device that a kind of structure is simple, good demonstration effect, cost are low.
The purpose of this utility model is realized by following technological means: a kind of inertial demonstration device, include vehicle frame, wheel, and the bead at vehicle frame top is connected to by cotton rope, it is characterized in that: described bead is set to size visibly different 3-5 group ball-type, and be set to 3-5 group respectively by the top that cotton rope is connected to vehicle frame; Also protractor is provided with, the junction being centrally located at cotton rope and vehicle frame of described protractor at the rear of each group cotton rope.
The bottom front of described vehicle frame is also provided with fixing sucking disk.
Compared with prior art the utility model has following obvious advantage: the utility model can observe the formation of principle of inertia intuitively, and the dynamics of inertia varies in size, the knowwhy of inertia in Students ' Learning physics can be helped, and can well combine with practice, integral manufacturing cost is lower, is easy to spread.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1-vehicle frame, 2-protractor, 3-cotton rope, 4-bead, 5-wheel, 6-fixing sucking disk.
Embodiment
Illustrate below in conjunction with accompanying drawing and with embodiment, the utility model to be described in further detail:
A kind of inertial demonstration device as shown in Figure 1, include vehicle frame 1, wheel 5, and the bead 4 at vehicle frame 1 top is connected to by cotton rope 3, it is characterized in that: described bead 4 is set to size visibly different 3-5 group ball-type, and be set to 3-5 group respectively by the top that cotton rope 3 is connected to vehicle frame 1; Protractor 2 is also provided with, the junction being centrally located at cotton rope 3 and vehicle frame 1 of described protractor 2 at the rear of each group cotton rope 3.Such setting, the utility model in use, promotion dolly marches forward, then barrier is touched, dolly is stopped suddenly, the bead 4 of several groups that vehicle frame 1 is connected by cotton rope 3 different sizes under the effect of inertia, forward rocking motion simultaneously, and the setting of throughput hornwork 2, different amplitudes of fluctuation can be observed intuitively.The utility model can observe the formation of principle of inertia intuitively, and the dynamics of inertia varies in size, and can help the knowwhy of inertia in Students ' Learning physics, and can well combine with practice, and integral manufacturing cost is lower, is easy to spread.
The bottom front of described vehicle frame 1 is also provided with fixing sucking disk 6.Such setting, can fix the dolly of advance better faster, better eliminates the shattering zone of dolly to the impact of inertia demonstration process.
In a word, the utility model provides a kind of inertial demonstration device that a kind of structure is simple, good demonstration effect, cost are low.The above; be only a part of embodiment of the present utility model; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.
Claims (2)
1. an inertial demonstration device, include vehicle frame (1), wheel (5), and the bead (4) at vehicle frame (1) top is connected to by cotton rope (3), it is characterized in that: described bead (4) is set to size visibly different 3-5 group ball-type, and be set to 3-5 group respectively by the top that cotton rope (3) is connected to vehicle frame (1); Protractor (2) is also provided with, the junction being centrally located at cotton rope (3) and vehicle frame (1) of described protractor (2) at the rear of each group cotton rope (3).
2. a kind of inertial demonstration device according to claim 1, is characterized in that: the bottom front of described vehicle frame (1) is also provided with fixing sucking disk (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265565.2U CN204680270U (en) | 2015-04-29 | 2015-04-29 | A kind of inertial demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265565.2U CN204680270U (en) | 2015-04-29 | 2015-04-29 | A kind of inertial demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204680270U true CN204680270U (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520265565.2U Expired - Fee Related CN204680270U (en) | 2015-04-29 | 2015-04-29 | A kind of inertial demonstration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204680270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI679618B (en) * | 2018-05-11 | 2019-12-11 | 國立臺灣師範大學 | Geometric area calculation tool |
-
2015
- 2015-04-29 CN CN201520265565.2U patent/CN204680270U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI679618B (en) * | 2018-05-11 | 2019-12-11 | 國立臺灣師範大學 | Geometric area calculation tool |
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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: 20150930 Termination date: 20160429 |