CN204480552U - Object Overweight and Zero Gravity phenomenon demonstration instrument - Google Patents
Object Overweight and Zero Gravity phenomenon demonstration instrument Download PDFInfo
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- CN204480552U CN204480552U CN201520167474.5U CN201520167474U CN204480552U CN 204480552 U CN204480552 U CN 204480552U CN 201520167474 U CN201520167474 U CN 201520167474U CN 204480552 U CN204480552 U CN 204480552U
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- bracing wire
- rotating cylinder
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Abstract
A kind of object Overweight and Zero Gravity phenomenon demonstration instrument, belongs to teaching aid technical field in physics teaching.Comprise instrument frame, instrument frame top sets gradually the first pulley, the second pulley, rotating cylinder, the 3rd pulley and the 4th pulley, the first pulley, rotating cylinder and the 4th pulley are walked around in first bracing wire respectively, the second pulley, rotating cylinder and the 3rd pulley are walked around in second bracing wire respectively, first bracing wire is connected a load-carrying frame respectively with the end of the second bracing wire, the bottom of each load-carrying frame arranges electronic pressure gage, and electron pressure table top places counterweight.By observing the reading of electronic pressure gage, realize overweight and weightless phenomenon.Hocket during experiment, design science is reasonable, and structure composition is simple, easy to use, improves the accuracy of experiment, improves the classroom efficiency in physics teaching.
Description
Technical field
The utility model relates to a kind of object Overweight and Zero Gravity phenomenon demonstration instrument, belongs to teaching aid technical field in physics teaching.
Background technology
At present, in physics teaching, student can not profound understanding to overweight, the weightlessness of object, and traditional overweight, weightless demonstration device accurately can not demonstrate overweight, weightlessness and data, and intuitive is not good.
In the patented technology of existing application, have the following disadvantages: 1, lecture experiment is finished after one time, restart to test the finishing time needed for a long time; 2, for providing the device of external force unstable, in experimentation, stable external force can not be provided; 3, complex structure, reduces the efficiency of demonstration.
Utility model content
According to above deficiency of the prior art, problem to be solved in the utility model is: provide object Overweight and Zero Gravity phenomenon demonstration instrument in a kind of physics teaching, and its design science is reasonable, and structure is simple, and external force is stablized, good demonstration effect.
The utility model solves the technical scheme that its technical matters adopts:
A kind of object Overweight and Zero Gravity phenomenon demonstration instrument, comprise instrument frame, instrument frame top sets gradually the first pulley, the second pulley, rotating cylinder, the 3rd pulley and the 4th pulley, the first pulley, rotating cylinder and the 4th pulley are walked around in first bracing wire respectively, the second pulley, rotating cylinder and the 3rd pulley are walked around in second bracing wire respectively, first bracing wire is connected a load-carrying frame respectively with the end of the second bracing wire, and the bottom of each load-carrying frame arranges electronic pressure gage, and electron pressure table top places counterweight.
During use, place 100 grams of counterweights in load-carrying frame below 4th pulley, make drum rotation by the first bracing wire, provide stable pulling force to the second bracing wire, counterweight weight when making the load-carrying frame below the second pulley measure overweight, the counterweight weight when load-carrying frame below the 3rd pulley is measured weightless.Once after experiment, 100 grams of counterweights placed by the load-carrying frame below the first pulley, can change, repeat experiment, raise the efficiency.By observing the reading of electronic pressure gage, realize overweight and weightless phenomenon.
Wherein preferred version is:
The first described bracing wire and the second bracing wire respectively on rotating cylinder around 3-5 circle.Ensure the torque levels of rotating cylinder, thus provide stable external force to the second bracing wire.
Described instrument frame bottom arranges display screen, the input end placement processor of display screen, the communication terminal of processor arranges wireless receiver, each electronic pressure gage arranges wireless launcher respectively, 4 wireless launchers and wireless receiver adapt, the power end of processor arranges switch, and switch is fixed on the bottom of display screen.Carried out by the reading of each electronic pressure gage radioing to display screen display, increase contrast effect, experiment effect is more directly perceived.
Described instrument frame arranges weight box.Be convenient to the counterweight receiving different quality.
The beneficial effect that the utility model has is: by its structure, and make design science reasonable, structure is simple, and external force is stablized, and good demonstration effect is easy to use, improves the accuracy of experiment, improves the classroom efficiency in physics teaching.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model;
Wherein, 1, weight box 2, instrument frame 3, first pulley 4, second pulley 5, rotating cylinder 6, the 3rd pulley 7, the 4th pulley 8, load-carrying frame 9, counterweight 10, electronic pressure gage 11, display screen 12, switch.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Embodiment 1:
As shown in Figure 1, a kind of object Overweight and Zero Gravity phenomenon demonstration instrument, comprise instrument frame 2 top and set gradually the first pulley 3, second pulley 4, rotating cylinder 5, the 3rd pulley 6 and the 4th pulley 7, the first pulley 2, rotating cylinder 5 and the 4th pulley 7 are walked around in first bracing wire respectively, the second pulley 4, rotating cylinder 5 and the 3rd pulley 6 are walked around in second bracing wire respectively, first bracing wire is connected a load-carrying frame 8 respectively with the end of the second bracing wire, four altogether.
The bottom of each load-carrying frame 8 arranges electronic pressure gage 10, and counterweight 9 is placed on electronic pressure gage 10 top.
First bracing wire and the second bracing wire respectively on rotating cylinder 5 around 3-5 circle.
Instrument frame 2 arranges weight box 1.
Instrument frame 2 arranges handle.
Embodiment 2:
As shown in Figure 2, as preferably, display screen 11 is set bottom instrument frame 2, the input end placement processor of display screen 11, the communication terminal of processor arranges wireless receiver, and four electronic pressure gages arrange wireless launcher respectively, and 4 wireless launchers and wireless receiver adapt, the power end of processor arranges switch 12, and switch 12 is fixed on the bottom of display screen 11.
Principle of work and use procedure:
During use, 100 grams of counterweights are placed in load-carrying frame below 4th pulley 7, load-carrying frame below first pulley does not put counterweight, 50 grams of counterweights placed respectively by second and the 3rd load-carrying frame below pulley, by the first bracing wire, rotating cylinder 5 is rotated, stable pulling force is provided, counterweight weight when making the load-carrying frame below the second pulley measure overweight, the counterweight weight when load-carrying frame below the 3rd pulley is measured weightless to the second bracing wire.Once after experiment, 100 grams of counterweights placed by the load-carrying frame below the first pulley, takes the counterweight on the load-carrying frame below the 4th pulley 7 away, repeat experiment, raise the efficiency.By observing the reading of electronic pressure gage, realize overweight and weightless phenomenon.
More than show and describe the ultimate principle of the invention and principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. an object Overweight and Zero Gravity phenomenon demonstration instrument, comprise instrument frame, it is characterized in that: instrument frame top sets gradually the first pulley, the second pulley, rotating cylinder, the 3rd pulley and the 4th pulley, the first pulley, rotating cylinder and the 4th pulley are walked around in first bracing wire respectively, the second pulley, rotating cylinder and the 3rd pulley are walked around in second bracing wire respectively, first bracing wire is connected a load-carrying frame respectively with the end of the second bracing wire, and the bottom of each load-carrying frame arranges electronic pressure gage, and electron pressure table top places counterweight.
2. object Overweight and Zero Gravity phenomenon demonstration instrument according to claim 1, is characterized in that: the first described bracing wire and the second bracing wire respectively on rotating cylinder around 3-5 circle.
3. object Overweight and Zero Gravity phenomenon demonstration instrument according to claim 1, it is characterized in that: described instrument frame bottom arranges display screen, the input end placement processor of display screen, the communication terminal of processor arranges wireless receiver, each electronic pressure gage arranges wireless launcher respectively, 4 wireless launchers and wireless receiver adapt, and the power end of processor arranges switch, and switch is fixed on the bottom of display screen.
4. the object Overweight and Zero Gravity phenomenon demonstration instrument according to claim 1 or 3, is characterized in that: described instrument frame arranges weight box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167474.5U CN204480552U (en) | 2015-03-24 | 2015-03-24 | Object Overweight and Zero Gravity phenomenon demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167474.5U CN204480552U (en) | 2015-03-24 | 2015-03-24 | Object Overweight and Zero Gravity phenomenon demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204480552U true CN204480552U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520167474.5U Expired - Fee Related CN204480552U (en) | 2015-03-24 | 2015-03-24 | Object Overweight and Zero Gravity phenomenon demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204480552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767045A (en) * | 2018-07-26 | 2020-02-07 | 怀化学院 | Object overweight and weightlessness experiment instrument |
-
2015
- 2015-03-24 CN CN201520167474.5U patent/CN204480552U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767045A (en) * | 2018-07-26 | 2020-02-07 | 怀化学院 | Object overweight and weightlessness experiment instrument |
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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: 20150715 Termination date: 20160324 |