CN109410716A - A kind of physics floating force experimental provision for facilitating student and understanding with memory - Google Patents
A kind of physics floating force experimental provision for facilitating student and understanding with memory Download PDFInfo
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- CN109410716A CN109410716A CN201811395779.6A CN201811395779A CN109410716A CN 109410716 A CN109410716 A CN 109410716A CN 201811395779 A CN201811395779 A CN 201811395779A CN 109410716 A CN109410716 A CN 109410716A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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Abstract
The invention belongs to buoyancy experiment device technical fields, in particular a kind of physics floating force experimental provision for facilitating student and understanding with memory, including pedestal, support frame and footstock, the top slide of the pedestal connects support frame as described above, is fixed with the footstock at the top of support frame as described above；Teacher is when doing buoyancy experiment, generally four processes can be demonstrated to student, whether first pass is related with the density for arranging liquid in order to detect buoyancy, whether second procedure is related with the object immersion volume of liquid in order to detect buoyancy, third process is to probe into the size of buoyancy and arrange the relationship of the size of gravity suffered by liquid, and third process is generally proved using two different experiment methods, and the experimental demonstration needs in these three processes take a long time, after experiment in first pass is finished, holding tray rotation is driven by the work of motor a, rotate beaker b to the lower section of measuring block, consequently facilitating teacher carries out the operation tested in second procedure.
Description
Technical field
The invention belongs to buoyancy experiment device technical fields, and in particular to a kind of physics for facilitating student and understanding with memory
Buoyancy experiment device.
Background technique
Power is referred to object in fluid (including liquids and gases), and each surface (is closed by the difference of fluid (liquids and gases) pressure
Power), B.C. 245 years, Archimedes had found law of buoyancy, the definition of buoyancy be F it is floating=(i.e. buoyancy of object is equal to G row
Object arranges the gravity of liquid when sinking), calculating can derive that formula F floats=ρ liquid gV row with it, and physics teaching often refers to
The project of the mechanics of various aspects, teacher often make various teaching aids, to calculate the gravity of the excluded liquid of object, institute
Weight, beaker, water receiving container and weight beam etc. are generally comprised with teaching aid.
The prior art has the following problems:
1, although existing mechanics topic teaching has in kind as reference, but a power experiment flow changes another power reality
It tests requirements of process to take a long time, causes student that can not form a specific scene in brain again, good memory is not achieved
Effect reduces the effect attended class；
2, it in the buoyancy of physics on measuring measurements of springs meter, is generally introduced objects into such a way that support frame and hand are taken
Into solution, and both modes lead to the height for being not easy to control object, and are not easy to guarantee whether weight beam is located
In plumbness, to influence the measurement of buoyancy of object；
3, it in the experiment flow of drainage, is generally collected using the water that beaker is discharged the form of additional measuring cup, and this
Kind of mode needs to adjust the position of measuring cup and beaker, and is likely to occur the case where water during draining splashes out, and gives experimenter
It makes troubles.
Summary of the invention
To solve the problems mentioned above in the background art.Facilitate what student understood and remembered the present invention provides a kind of
Physics floating force experimental provision has intuitive expression measurement buoyancy of object, convenient for adjustment spring dynamometer height and by beaker and row
The characteristics of measuring cup of water outlet is integrated.
To achieve the above object, the invention provides the following technical scheme: including pedestal, support frame and footstock, the pedestal
Top slide connect support frame as described above, be fixed with the footstock at the top of support frame as described above, pass through spiral shell at the top of the footstock
Bolt mode is connected with spooler shell, and the inner sidewall of the spooler shell is rotatably connected to take-up reel and positioning disk, the receipts
The lateral wall of line device shell is connected with motor b close to one end of the take-up reel, and the output shaft of the motor b is rotatablely connected take-up
Disk, the motor b and external power supply are electrically connected, and the lateral wall of the take-up reel winds rope, described rope one end with it is described
Take-up reel is fixed, and the other end is connect with weight beam, and one end of the weight beam is connected with far from described rope one end
Measuring block is fixed with chassis at the top center position of the pedestal, and the top on the chassis is equipped with holding tray, the chassis
Bottom inner surface is fixed with motor a, and the output shaft of the motor a is rotatablely connected the holding tray, the motor a and external power supply
It is electrically connected, the side of beaker a, beaker b and beaker c, the beaker c is separately installed at the top of the holding tray far from described
The side of beaker b is connected with measuring cup.
In order to enable weight beam is moving along the vertical direction, facilitates student as one kind of the invention and understand and remember
The contact surface of the physics floating force experimental provision optimal technical scheme recalled, the spooler shell and the footstock opens up through-hole, and
The rope runs through the through-hole.
In order to enable the solution replacement in beaker on replacement pedestal, it at this time only need to be by dismantling support frame, as the present invention
It is a kind of facilitate student understand with memory physics floating force experimental provision optimal technical scheme, support frame as described above bottom end welding
It is fixed with slide plate, the upper surface of the pedestal opens up groove compatible with the slide plate, and support frame as described above and the pedestal are logical
The slide plate is crossed to be slidably connected with the groove.
In order to enable measuring block can be imported into beaker, a kind of facilitate student as of the invention and understand and memory
Physics floating force experimental provision optimal technical scheme, the measuring block and the weight beam are in the upper of the beaker a
Side.
In order to increase the frictional force between beaker and holding tray, facilitates student as one kind of the invention and understand and remember
Physics floating force experimental provision optimal technical scheme, three circular troughs, tool in the circular trough are opened up at the top of the holding tray
There is non-slip mat.
For the ease of the liquid in beaker to be discharged, as a kind of physics for facilitating student and understanding with memory of the invention
The side of buoyancy experiment device optimal technical scheme, the beaker c is equipped with outlet tube, the liquid out close to the top of the measuring cup
Pipe is integrally formed with the beaker c.
It is floating as a kind of physics for facilitating student's understanding and memory of the invention for the ease of disassembly measuring cup and beaker c
The side of power experimental provision optimal technical scheme, the beaker c is equipped with interconnecting piece, the interconnecting piece close to the measuring cup side
Side slidably connect sliding block far from the side the beaker c.
In order to enable sliding block is convenient for sliding into beaker c, a kind of facilitate student as of the invention and understand and memory
Physics floating force experimental provision optimal technical scheme, the interconnecting piece side open up sliding slot close to the sliding block side.
Compared with prior art, the beneficial effects of the present invention are:
1, teacher generally can demonstrate four processes to student, first pass is to detect buoyancy when doing buoyancy experiment
It is no related with density that is arranging liquid, second procedure in order to detect buoyancy whether with object immerse the volume of liquid it is related, third
Process be probe into the size of buoyancy and arrange the relationship of the size of gravity suffered by liquid, and third process generally use two kinds not
Same experiment method proves, and the experimental demonstration needs in these three processes take a long time, in first pass
After experiment is finished, holding tray rotation is driven by the work of motor a, rotates beaker b to the lower section of measuring block, consequently facilitating religion
The operation tested in Shi Jinhang second procedure, and so on, when replacing experiment, the rotation of holding tray is only needed, changes measuring block
The beaker of lower section improves the progress of experiment, understands convenient for student and remembers；
2, when measuring the buoyancy of measuring block, by the work of motor b, the rotation of take-up reel is driven, by the outside of take-up reel
Rope folding and unfolding, thus at the uniform velocity change weight beam and measuring block height, it is corresponding convenient for measuring block is imported into beaker
Height；
3, solution is imported into measuring cup by beaker c, is convenient for when measuring the liquid of solution discharge in beaker c by teacher
The liquid of discharge is collected, there is a situation where splashing when reducing liquid export, and beaker c is eliminated and is aligned with measuring cup
The step of.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the take-up overlooking structure figure in the present invention；
Fig. 3 is the pedestal overlooking structure diagram in the present invention；
Fig. 4 is the A enlarged drawing in the present invention；
Fig. 5 is the interconnecting piece side structure schematic view in the present invention；
Fig. 6 is 1 flow chart of experiment in the present invention；
Fig. 7 is 2 flow chart of experiment in the present invention；
Fig. 8 is 3 flow chart of experiment in the present invention；
Fig. 9 is 4 flow chart of experiment in the present invention；
In figure: 1, pedestal；2, chassis；21, motor a；3, holding tray；31, beaker a；32, beaker b；33, beaker c；331,
Measuring cup；332, interconnecting piece；333, sliding block；4, support frame；41, slide plate；5, footstock；51, spooler shell；52, positioning disk；53,
Take-up reel；54, motor b；6, weight beam；7, measuring block.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Fig. 1-9 is please referred to, the present invention provides a kind of technical solution: a kind of physics floating force for facilitating student and understanding with memory
The top slide of experimental provision, including pedestal 1, support frame 4 and footstock 5, the pedestal 1 connects support frame as described above 4, the support
The top of frame 4 is fixed with the footstock 5, and the top of the footstock 5 is connected with spooler shell 51, the receipts by bolt mode
The inner sidewall of line device shell 51 is rotatably connected to take-up reel 53 and positioning disk 52, and the lateral wall of the spooler shell 51 is close to institute
The one end for stating take-up reel 53 is connected with motor b54, and the output shaft of the motor b54 is rotatablely connected take-up reel 53, the motor b54
It is electrically connected with external power supply, the lateral wall of the take-up reel 53 winds rope, and described rope one end and the take-up reel 53 are solid
Fixed, the other end is connect with weight beam 6, and one end of the weight beam 6 is connected with measuring block far from described rope one end
7, chassis 2 is fixed at the top center position of the pedestal 1, the top on the chassis 2 is equipped with holding tray 3, the chassis 2
Bottom inner surface is fixed with motor a21, and the output shaft of the motor a21 is rotatablely connected the holding tray 3, the motor a21 with
External power supply is electrically connected, and the top of the holding tray 3 is separately installed with beaker a31, beaker b32 and beaker c33, the beaker
The side of c33 is connected with measuring cup 331 far from the side of the beaker b32.
In the present embodiment, teacher can generally give student to demonstrate four processes, first pass is in order to examine when doing buoyancy experiment
Survey whether buoyancy is related with the density for arranging liquid, second procedure has to detect the volume whether buoyancy immerses liquid with object
It closes, third process is to probe into the size of buoyancy and arrange the relationship of the size of gravity suffered by liquid, and third process is generally adopted
It is proved with two different experiment methods, and the experimental demonstration needs in these three processes take a long time, first-class
After the experiment of Cheng Dangzhong is finished, drives holding tray 3 to rotate by the work of motor a21, rotate beaker b32 to measuring block 7
Lower section, consequently facilitating teacher carries out the operation tested in second procedure, and so on, when replacing experiment, only need holding tray 3
Rotation changes the beaker of 7 lower section of measuring block, improves the progress of experiment, understands convenient for student and remember, in measurement measuring block 7
Buoyancy when, by the work of motor b54, drive the rotation of take-up reel 53, by the folding and unfolding of the rope in 53 outside of take-up reel, thus
The height at the uniform velocity changing weight beam 6 and measuring block 7, convenient for measuring block 7 is imported into the corresponding height of beaker, and is restricting
During sub- folding and unfolding, by the rotation of positioning disk 52, the transmission location of rope, teacher's solution in measurement beaker c33 are limited
When the liquid of discharge, solution is imported into measuring cup 331 by beaker c33, convenient for being collected the liquid of discharge, is reduced
There is a situation where splashing when liquid exports, and eliminate the step of beaker c33 is aligned with measuring cup 331.
Specifically, the contact surface of the spooler shell 51 and the footstock 5 opens up through-hole, and the rope is through described
Through-hole.
In the present embodiment, rope is during folding and unfolding, by through hole, convenient for weight beam 6 in the top of beaker
Adjust height.
Specifically, the bottom end of support frame as described above 4 is welded with slide plate 41, the upper surface of the pedestal 1 open up with it is described
The compatible groove of slide plate 41, support frame as described above 4 are slidably connected by the slide plate 41 with the groove with the pedestal 1.
In the present embodiment, experiment finish or experimentation in, by pull support frame 4, make slide plate 41 in pedestal 1
Groove in slide, consequently facilitating support frame 4 and pedestal 1 are split, teacher is conveniently replaceable the solution in beaker.
Specifically, the measuring block 7 and the weight beam 6 are in the top of the beaker a31.
In the present embodiment, for the ease of measuring the buoyancy of measuring block 7, measuring block 7 and weight beam 6 are in beaker
Top.
Specifically, the top of the holding tray 3 opens up three circular troughs, there is non-slip mat in the circular trough.
In the present embodiment, in three beakers of mode, a part of bottom of beaker is embedded by holding tray 3 by circular trough
Inside increases the friction between beaker and holding tray 3 then by non-slip mat.
Specifically, the side of the beaker c33 close to the top of the measuring cup 331 be equipped with outlet tube, the outlet tube with
The beaker c33 is integrally formed.
In the present embodiment, the liquid in beaker c33 is discharged in measuring cup 331 by outlet tube, convenient for measurement measuring block 7
Buoyancy.
Specifically, the side of the beaker c33 is equipped with interconnecting piece 332, the interconnecting piece close to 331 side of measuring cup
332 side slidably connects sliding block 333 far from the side the beaker c33.
Specifically, 332 side of interconnecting piece opens up sliding slot close to 333 side of sliding block
It in the present embodiment, when replacing measuring cup 331, is slid into sliding slot by sliding block, makes sliding block 333 and interconnecting piece 332
It tentatively connects, then slide downward, so that sliding block 333 is fixed in interconnecting piece 332.
The working principle of the invention and process for using: buoyancy experiment 1,
Step 1: weight beam surveys gravity G suffered by metal block；
Step 2: playing metal block with weight beam along the vertical direction, be immersed in metal block in beaker a solution, record
F value；
Step 3: playing metal block with weight beam along the vertical direction, be immersed in metal block in beaker b solution, record
F value；
Step 4: floating=G-F using F, calculate separately out buoyancy twice.
Buoyancy experiment 2,
Step 1: driving holding tray 3 to rotate by motor a21, rotate beaker b to the lower section of measuring block 7；
Step 2: playing metal block with weight beam along the vertical direction, soak about 2/3rds volume of metal block
Enter in beaker b, records F value at this time；
Step 3: playing metal block with weight beam along the vertical direction, be immersed in metal block in beaker b solution, record
F value；
Step 4: floating=G-F using F, calculate separately out buoyancy twice.
Buoyancy experiment 3:
Step 1: weight beam measures the gravity of measuring tank, and weight beam measures the gravity of metal block
Step 2: driving holding tray 3 to rotate by motor a21, rotate beaker c33 to the lower section of measuring block 7；
Step 3: playing metal block with weight beam along the vertical direction, be immersed in metal block in beaker c solution, record
F value；
Step 4: the total force of bucket is measured with weight beam；
Step 5: calculating the buoyancy of water suffered by finger stone and exclude the gravity of water.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of physics floating force experimental provision for facilitating student and understanding with memory, it is characterised in that: including pedestal (1), support
The top slide of frame (4) and footstock (5), the pedestal (1) connects support frame as described above (4), and the top of support frame as described above (4) is fixed
Have the footstock (5), the top of the footstock (5) is connected with spooler shell (51) by bolt mode, outside the spooler
The inner sidewall of shell (51) is rotatably connected to take-up reel (53) and positioning disk (52), and the lateral wall of the spooler shell (51) is close
One end of the take-up reel (53) is connected with motor b (54), and the output shaft of the motor b (54) is rotatablely connected take-up reel (53),
The motor b (54) and external power supply are electrically connected, and the lateral wall of the take-up reel (53) winds rope, described rope one end with
The take-up reel (53) is fixed, and the other end is connect with weight beam (6), and one end of the weight beam (6) is far from described
Rope one end is connected with measuring block (7), is fixed with chassis (2) at the top center position of the pedestal (1), the chassis (2)
Top be equipped with holding tray (3), the bottom inner surface of the chassis (2) is fixed with motor a (21), the motor a (21) it is defeated
Shaft is rotatablely connected the holding tray (3), and the motor a (21) and external power supply are electrically connected, the top of the holding tray (3)
It is separately installed with beaker a (31), beaker b (32) and beaker c (33), the side of the beaker c (33) is far from the beaker b (32)
Side be connected with measuring cup (331).
2. a kind of physics floating force experimental provision for facilitating student and understanding with memory according to claim 1, feature exist
In: the contact surface of the spooler shell (51) and the footstock (5) opens up through-hole, and the rope runs through the through-hole.
3. a kind of physics floating force experimental provision for facilitating student and understanding with memory according to claim 1, feature exist
In: the bottom end of support frame as described above (4) is welded with slide plate (41), and the upper surface of the pedestal (1) opens up and the slide plate
(41) compatible groove, support frame as described above (4) and the pedestal (1) are connected by the slide plate (41) and groove sliding
It connects.
4. a kind of physics floating force experimental provision for facilitating student and understanding with memory according to claim 1, feature exist
The top of the beaker a (31) is in: the measuring block (7) and the weight beam (6).
5. a kind of physics floating force experimental provision for facilitating student and understanding with memory according to claim 1, feature exist
In: three circular troughs are opened up at the top of the holding tray (3), and there is non-slip mat in the circular trough.
6. a kind of physics floating force experimental provision for facilitating student and understanding with memory according to claim 1, feature exist
In: the side of the beaker c (33) is equipped with outlet tube, the outlet tube and the beaker c close to the top of the measuring cup (331)
(33) it is integrally formed.
7. a kind of physics floating force experimental provision for facilitating student and understanding with memory according to claim 1, feature exist
In: the side of the beaker c (33) is equipped with interconnecting piece (332) close to the measuring cup (331) side, the interconnecting piece (332)
Side slidably connect sliding block (333) far from beaker c (33) side.
8. a kind of physics floating force experimental provision for facilitating student and understanding with memory according to claim 7, feature exist
In: interconnecting piece (332) side opens up sliding slot close to the sliding block (333) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395779.6A CN109410716A (en) | 2018-11-22 | 2018-11-22 | A kind of physics floating force experimental provision for facilitating student and understanding with memory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395779.6A CN109410716A (en) | 2018-11-22 | 2018-11-22 | A kind of physics floating force experimental provision for facilitating student and understanding with memory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109410716A true CN109410716A (en) | 2019-03-01 |
Family
ID=65474507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811395779.6A Pending CN109410716A (en) | 2018-11-22 | 2018-11-22 | A kind of physics floating force experimental provision for facilitating student and understanding with memory |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885206A (en) * | 2020-10-13 | 2021-06-01 | 苏州巴涛信息科技有限公司 | Buoyancy demonstration teaching aid for physical experiment |
| CN115083244A (en) * | 2022-07-08 | 2022-09-20 | 淮阴工学院 | Buoyancy experiment teaching equipment for physical experiment |
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| SU1045245A1 (en) * | 1980-05-30 | 1983-09-30 | Gildebrandt Vladimir L | Teaching-aid apparatus on physics |
| CN203746286U (en) * | 2014-03-05 | 2014-07-30 | 孔庆磊 | Teaching assistance demonstration board |
| CN204423766U (en) * | 2015-02-27 | 2015-06-24 | 肖泽晓 | A kind of physics floating force experimental demonstration device |
| CN206249725U (en) * | 2016-10-26 | 2017-06-13 | 王玮霞 | A kind of physics floating force experimental provision |
| CN206388404U (en) * | 2016-12-14 | 2017-08-08 | 杨光裕 | A kind of liquids and gases buoyancy demonstrating device |
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2018
- 2018-11-22 CN CN201811395779.6A patent/CN109410716A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1045245A1 (en) * | 1980-05-30 | 1983-09-30 | Gildebrandt Vladimir L | Teaching-aid apparatus on physics |
| CN203746286U (en) * | 2014-03-05 | 2014-07-30 | 孔庆磊 | Teaching assistance demonstration board |
| CN204423766U (en) * | 2015-02-27 | 2015-06-24 | 肖泽晓 | A kind of physics floating force experimental demonstration device |
| CN206249725U (en) * | 2016-10-26 | 2017-06-13 | 王玮霞 | A kind of physics floating force experimental provision |
| CN206388404U (en) * | 2016-12-14 | 2017-08-08 | 杨光裕 | A kind of liquids and gases buoyancy demonstrating device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885206A (en) * | 2020-10-13 | 2021-06-01 | 苏州巴涛信息科技有限公司 | Buoyancy demonstration teaching aid for physical experiment |
| CN115083244A (en) * | 2022-07-08 | 2022-09-20 | 淮阴工学院 | Buoyancy experiment teaching equipment for physical experiment |
| CN115083244B (en) * | 2022-07-08 | 2023-10-20 | 淮阴工学院 | Buoyancy experiment teaching equipment for physical experiment |
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