CN204423766U - A kind of physics floating force experimental demonstration device - Google Patents
A kind of physics floating force experimental demonstration device Download PDFInfo
- Publication number
- CN204423766U CN204423766U CN201520117298.4U CN201520117298U CN204423766U CN 204423766 U CN204423766 U CN 204423766U CN 201520117298 U CN201520117298 U CN 201520117298U CN 204423766 U CN204423766 U CN 204423766U
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- container case
- guide wheel
- reel
- hook
- bracing wire
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Abstract
A kind of physics floating force apparatus for demonstrating, comprise container case, graduated cylinder, tension measurement device and buoyant spheres, described container case is the container case of upper end open, bottom container case, centre and container case bottom portion side end are respectively provided with one first guide wheel, hook is provided with directly over first guide wheel, described buoyant spheres is connected with hook by link, container case left side wall upper end is provided with the second guide wheel, on the left of container case, outer wall lower end is provided with reel, reel axle head is connected with rocking handle, described hook bottom is connected with bracing wire, the bracing wire other end is respectively through the first guide wheel middle bottom container case, first guide wheel of container case bottom portion side end is fixedly connected with reel with after the second guide wheel guiding, bracing wire between described reel and the second guide wheel is provided with tension measurement device, described container case right side wall upper end offers liquid spill-way, graduated cylinder is provided with below liquid spill-way, the utility model structure is simple, smooth operation is convenient, the fluctuation of tension measurement device reading is little, greatly reduce measuring error.
Description
Technical field
The utility model relates to physical instrument technical field, specifically a kind of physics floating force experimental demonstration device.
Background technology
Checking object in a liquid suffered buoyancy size be basic experiment in Physical Experiment it.In the Physical Experiment of measuring object suffered buoyancy in a liquid, leaching object in a liquid discharges the liquid of certain volume, and the gravity suffered by the liquid of this part volume equals the buoyancy suffered by object.In long-term teaching practice, test articles is compressed into the process of liquid by teacher at use buoyancy device, because the uneven test articles that makes of power be pressed on test articles is easy to depart from buoyancy device, be inconvenient to operate, and test articles roll and pitch in vessel liquid makes buoyancy device reading unstable, causes experimental result easily to produce comparatively big error.
Utility model content
The purpose of this utility model is to provide a kind of handled easily, can steadily be pressed in liquid by object, the physics floating force experimental demonstration device that tension measurement device reading fluctuates little, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of physics floating force apparatus for demonstrating, comprise container case, graduated cylinder, tension measurement device and buoyant spheres, described container case is the container case of upper end open, bottom container case, centre and container case bottom portion side end are respectively provided with one first guide wheel, hook is provided with directly over the first guide wheel in the middle of bottom container case, described buoyant spheres is connected with hook by link, container case left side wall upper end is provided with the second guide wheel, on the left of container case, outer wall lower end is provided with reel, reel axle head is connected with rocking handle, described hook bottom is connected with bracing wire, the bracing wire other end is respectively through the first guide wheel middle bottom container case, first guide wheel of container case bottom portion side end is fixedly connected with reel with after the second guide wheel guiding, bracing wire between described reel and the second guide wheel is provided with tension measurement device, described container case right side wall upper end offers liquid spill-way, graduated cylinder is provided with below liquid spill-way, described graduated cylinder is arranged on the fixing landing slab in container case right side wall lower end.
Further, on the right side of described container case, bottom sidewall offers escape hole, escape hole is provided with switch valve.
Further, described tension measurement device is spring tension meter.
Further, the bracing wire of described hook bottom is fixedly installed suspension block.
Further, described buoyant spheres is hollow hard buoyant spheres.
The beneficial effects of the utility model are: fill liquid in container case after, hook automatically floats under the drive of suspension block, be convenient to hang buoyant spheres on hook, by slowly shaking in liquid that buoyant spheres slowly to draw in container case by rocking handle, the liquid overflowed in container case imports in graduated cylinder by the spillway of upper end on the right side of container case, after buoyant spheres enters liquid internal completely, record the reading of graduated cylinder and tension measurement device, by hook, bracing wire, first angle sheave, cooperatively interacting of second angle sheave and reel, can apply uniform power is pressed in liquid by buoyant spheres, process is steady, operating process is continuous, convenient and reliable, guarantee the interest of experimentation and the accuracy of experimental data.To sum up, the utility model structure is simple, and handled easily, can steadily be pressed in liquid by object, and the fluctuation of tension measurement device reading is little, greatly reduces measuring error.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of physics floating force experimental demonstration device.
In figure: 1-container case, 2-escape hole, 3-liquid, 4-landing slab, 5-graduated cylinder, 6-liquid spill-way, 7-suspension block, 8-buoyant spheres, 9-links up with, 10-second guide wheel, 11-first guide wheel, 12-bracing wire, 13-tension measurement device, 14-rocking handle, 15-reel.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of physics floating force apparatus for demonstrating, comprise container case 1, graduated cylinder 5, tension measurement device 13 and buoyant spheres 8, described container case 1 is the container case of upper end open, bottom container case 1, centre and container case 1 bottom portion side end are respectively provided with one first guide wheel 11, hook 9 is provided with directly over the first guide wheel 11 in the middle of bottom container case 1, described buoyant spheres 8 is connected with hook 9 by link, container case 1 left side wall upper end is provided with the second guide wheel 10, on the left of container case 1, outer wall lower end is provided with reel 15, reel 15 axle head is connected with rocking handle 14, described hook 9 bottom is connected with bracing wire 12, bracing wire 12 other end is respectively through the first guide wheel 11 middle bottom container case 1, be fixedly connected with reel 15 after first guide wheel 11 of container case 1 bottom portion side end leads with the second guide wheel 10, bracing wire 12 between described reel 15 and the second guide wheel 10 is provided with tension measurement device 13, described container case 1 right side wall upper end offers liquid spill-way 6, graduated cylinder 5 is provided with below liquid spill-way 6, described graduated cylinder 5 is arranged on the fixing landing slab 4 in container case 1 right side wall lower end.
In embodiment, on the right side of described container case 1, bottom sidewall offers escape hole 2, escape hole 2 is provided with switch valve, be convenient to the liquid in container case 1 to discharge by switch valve.
In embodiment, described tension measurement device 13 is spring tension meter, utilizes existing Physical Experiment utensil, convenient and practical.
In embodiment, the bracing wire 12 of described hook 9 bottom is fixedly installed suspension block 7, in experimentation, by suspension block 7, hook drive is floated, conveniently hang buoyant spheres 8.
In embodiment, described buoyant spheres 8 is hollow hard buoyant spheres, and hollow hard buoyant spheres guarantees that buoyant spheres 8 is indeformable in press-in liquid, avoids the accuracy affecting experimental data.
Principle of work of the present utility model is: fill liquid 3 in container case 1 after, hook 9 automatically floats under the drive of suspension block 7, be convenient to hang buoyant spheres 8 on hook 9, by slowly shaking in liquid 3 that buoyant spheres 8 slowly to draw in container case 1 by rocking handle 14, the liquid 3 overflowed in container case 1 imports in graduated cylinder 5 by the spillway 6 of upper end on the right side of container case 1, after buoyant spheres 8 enters liquid internal completely, record the reading of graduated cylinder 5 and tension measurement device 13, by linking up with 9, bracing wire 12, first angle sheave 11, cooperatively interacting of second angle sheave 10 and reel 15, can apply uniform power is pressed in liquid by buoyant spheres 8, process is steady, operating process is continuous, convenient and reliable, guarantee the interest of experimentation and the accuracy of experimental data, the utility model can be used for known buoyant spheres 8 and measures unknown liquid 3 density experiment, also can be used for the gravity experiment that known liquid 3 measures buoyant spheres 8.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
1. a physics floating force apparatus for demonstrating, comprise container case, graduated cylinder, tension measurement device and buoyant spheres, it is characterized in that, described container case is the container case of upper end open, bottom container case, centre and container case bottom portion side end are respectively provided with one first guide wheel, hook is provided with directly over the first guide wheel in the middle of bottom container case, described buoyant spheres is connected with hook by link, container case left side wall upper end is provided with the second guide wheel, on the left of container case, outer wall lower end is provided with reel, reel axle head is connected with rocking handle, described hook bottom is connected with bracing wire, the bracing wire other end is respectively through the first guide wheel middle bottom container case, first guide wheel of container case bottom portion side end is fixedly connected with reel with after the second guide wheel guiding, bracing wire between described reel and the second guide wheel is provided with tension measurement device, described container case right side wall upper end offers liquid spill-way, graduated cylinder is provided with below liquid spill-way, described graduated cylinder is arranged on the fixing landing slab in container case right side wall lower end.
2. a kind of physics floating force apparatus for demonstrating according to claim 1, is characterized in that, on the right side of described container case, bottom sidewall offers escape hole, escape hole is provided with switch valve.
3. a kind of physics floating force apparatus for demonstrating according to claim 1, is characterized in that, described tension measurement device is spring tension meter.
4. a kind of physics floating force apparatus for demonstrating according to claim 1, is characterized in that, the bracing wire of described hook bottom is fixedly installed suspension block.
5. a kind of physics floating force apparatus for demonstrating according to claim 1, is characterized in that, described buoyant spheres is hollow hard buoyant spheres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117298.4U CN204423766U (en) | 2015-02-27 | 2015-02-27 | A kind of physics floating force experimental demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117298.4U CN204423766U (en) | 2015-02-27 | 2015-02-27 | A kind of physics floating force experimental demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204423766U true CN204423766U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520117298.4U Expired - Fee Related CN204423766U (en) | 2015-02-27 | 2015-02-27 | A kind of physics floating force experimental demonstration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204423766U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123346A (en) * | 2017-06-08 | 2017-09-01 | 杨露萍 | A kind of physics teaching fluid density and the demonstration teaching aid of buoyancy relation |
| CN109410716A (en) * | 2018-11-22 | 2019-03-01 | 刘美伊 | A kind of physics floating force experimental provision for facilitating student and understanding with memory |
-
2015
- 2015-02-27 CN CN201520117298.4U patent/CN204423766U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123346A (en) * | 2017-06-08 | 2017-09-01 | 杨露萍 | A kind of physics teaching fluid density and the demonstration teaching aid of buoyancy relation |
| CN109410716A (en) * | 2018-11-22 | 2019-03-01 | 刘美伊 | A kind of physics floating force experimental provision for facilitating student and understanding with memory |
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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: 20150624 Termination date: 20160227 |