CN211578189U - A presentation device for buoyancy teaching - Google Patents
A presentation device for buoyancy teaching Download PDFInfo
- Publication number
- CN211578189U CN211578189U CN201921050642.7U CN201921050642U CN211578189U CN 211578189 U CN211578189 U CN 211578189U CN 201921050642 U CN201921050642 U CN 201921050642U CN 211578189 U CN211578189 U CN 211578189U
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- Prior art keywords
- buoyancy
- demonstration
- demonstration device
- teaching
- density
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- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000007598 dipping method Methods 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007654 immersion Methods 0.000 description 14
- 238000002791 soaking Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005339 levitation Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
- 208000019206 urinary tract infection Diseases 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Instructional Devices (AREA)
Abstract
The utility model relates to a teaching equipment technical field especially relates to a presentation device for buoyancy teaching. The buoyancy demonstrating device comprises a containing device, a first buoyancy demonstrating device, a second buoyancy demonstrating device and a device containing box, wherein the first buoyancy demonstrating device is a sealable cuboid container with scales, and the second buoyancy demonstrating device comprises a liquid cylinder, first density liquid, a suspending device and a pressure intensity changing device; the device containing box is used for containing the first buoyancy demonstration device and the second buoyancy demonstration device. The utility model discloses not only can synthesize two knowledge points of density and volume and teach the demonstration, use the scene and cover extensively, but also can effectively mobilize student's enthusiasm through operation multiunit experiment, operation process is interesting, deepens the student to the understanding of relevant notion, has improved the teaching effect.
Description
Technical Field
The utility model relates to a teaching equipment technical field especially relates to a presentation device for buoyancy teaching.
Background
In the physical teaching of the current high school, the buoyancy comprises a first buoyancy and a second buoyancy, and the first buoyancy teaching content mostly comprises a definition formula F of the buoyancyFloating body＝GRow boardI.e. understanding that the buoyancy of the object is equal to the gravity of the displaced liquid when the object sinks, and equation FFloating body＝ρLiquid for treating urinary tract infectiongVRow board(ρLiquid for treating urinary tract infection: liquid density, unit: newton, VRow boardThe volume of the liquid is displaced,unit: m is3) To understand it.
In the existing physical teaching process, teachers mostly adopt a mouth teaching mode to convey understanding about buoyancy concepts and related knowledge to students, the students can only passively accept the understanding, theoretical connection is not practical, and the teaching effect is poor; in the prior art, some buoyancy teaching demonstration devices are provided, but only one of the buoyancy can be changed according to the density and the volume, the coverage surface is narrow, and the device is heavy and inconvenient to carry.
Therefore, the demonstration device for buoyancy teaching is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a demonstration device for buoyancy teaching.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a demonstration device for buoyancy teaching comprises a containing device, a first buoyancy demonstration device, a second buoyancy demonstration device and a device containing box, wherein the first buoyancy demonstration device is a sealable cuboid container with scales, and the second buoyancy demonstration device comprises a liquid cylinder, first density liquid, a suspension device and a pressure intensity changing device; the device containing box is used for containing the first buoyancy demonstration device and the second buoyancy demonstration device.
Further, the first buoyancy demonstration device further comprises a sealing cover.
Further, the second buoyancy demonstration device further comprises a sealing plug, a first connecting pipe and a second connecting pipe.
Further, a presentation device for buoyancy teaching still includes tweezers, second density liquid package, globular dipping piece, cuboid dipping piece and square dipping piece, just storage device is used for accomodating tweezers second density liquid package globular dipping piece cuboid dipping piece the square dipping piece the suspending device the pressure change device with the second connecting pipe.
Compared with the prior art, the utility model, its beneficial effect does:
1. by arranging the first buoyancy demonstration device and the second buoyancy demonstration device, two knowledge points of density and volume are integrated for teaching demonstration, and the application scene coverage is wide;
2. through the arrangement of the first buoyancy demonstration device, the demonstration of immersion blocks in various density liquids and various shapes is carried out on density changing buoyancy, students can think and calculate in the experimental process, the buoyancy demonstration is not only simple, the enthusiasm of the students can be effectively mobilized, and the understanding of the students to related concepts can be deepened;
3. through setting up second buoyancy presentation device, change buoyancy to the volume and carry out audio-visual understanding, the operation process is interesting, has good visual effect to can strengthen the understanding of student's buoyancy.
Drawings
Fig. 1 is an overall schematic view of a demonstration apparatus for buoyancy teaching according to the present invention;
FIG. 2 is a schematic view of a storage device;
FIG. 3 is a schematic view of a first buoyancy demonstrating device;
fig. 4 is a schematic view of a second buoyancy demonstrating device.
In the figure: the device comprises a device storage box 1, a device storage box 2, a first buoyancy demonstration device 3, a second buoyancy demonstration device 4, tweezers 201, a second density liquid bag 202, a spherical immersion block 203, a cuboid immersion block 204, a cube immersion block 205, a sealing cover 301, a liquid cylinder 401, a first density liquid 402, a suspension device 403, a sealing cover 404, a first connecting pipe 405, a pressure change device 406 and a second connecting pipe 407.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, a demonstration device for buoyancy teaching comprises a storage device 2, a first buoyancy demonstration device 3, a second buoyancy demonstration device 4 and a device storage box 1, wherein the first buoyancy demonstration device 3 is a sealable cuboid container with scales, and the second buoyancy demonstration device 4 comprises a liquid cylinder 401, a first density liquid 402, a suspension device 403 and a pressure intensity changing device 406; the device storage box 1 is used for storing a first buoyancy demonstration device 3 and a second buoyancy demonstration device 4.
Further, referring to fig. 3, the first buoyancy demonstrating device 3 further includes a sealing cover 301.
It should be noted that the first buoyancy demonstration device is used for demonstrating the influence of density on buoyancy, the spherical soaking block 203 is firstly placed into the first buoyancy demonstration device 3 by the forceps 201, water is filled, the spherical soaking block 203 is taken out by the forceps 201, the scale marks of the first buoyancy demonstration device 3 are observed, the volume change of the water is recorded, the water in the first buoyancy demonstration device 3 is poured out, and the dryness is controlled; then, taking out the second density liquid bag 202 from the containing device 2, putting the spherical soaking block 203 into the first buoyancy demonstration device 3 by using the forceps 201, pouring the second density liquid, taking out the spherical soaking block 203 by using the forceps 201, observing the scale mark of the first buoyancy demonstration device 3, recording the volume change of the second density liquid, comparing the data of the two times, and guiding the student to obtain a conclusion;
further, referring to fig. 4, the second buoyancy demonstrating device 4 further includes a sealing plug 404, a first connecting pipe 405 and a second connecting pipe 407.
It should be noted that the pressure changing device 406 is designed as an injector, the first connecting tube 405 is used for connecting the pressure changing device 406, the second connecting tube 407 is used for connecting the pressure changing device 406 and the suspending device 403, the suspending device 403 is designed as a tightly sealed and elastic bag, and a connecting port connected with the second connecting tube 407 is arranged at the top of the suspending device 403;
the second buoyancy demonstration device 4 is used for demonstrating the influence of volume change on buoyancy, firstly, a pressure change device 406 is connected with a second connecting pipe 407 to inject a small amount of first density liquid 402 into a suspension device 403, tweezers 201 are used for placing the suspension device 403 into a liquid cylinder 401 filled with the first density liquid 402 to enable the suspension device to be suspended in the first density liquid 402, a sealing plug 404 is added to enable the pressure change device 406 to be connected with the first connecting pipe 405 and the second connecting pipe 406, after sealing is completed, the first density liquid 402 is continuously injected into the suspension device 403 through the pressure change device 406 to enable the suspension device 403 to be large in volume and unchanged in density, and the suspension state of the suspension device 403 is observed; then, air is injected into the levitation device 403 by the pressure changing device 406 to increase the volume and decrease the density of the levitation device 403, and the levitation state is observed.
Further, referring to fig. 2, a demonstration apparatus for buoyancy teaching further includes tweezers 201, a second density liquid bag 202, a spherical dipping block 203, a rectangular parallelepiped dipping block 204, and a cube dipping block 205, and the storage apparatus 2 is configured to store the tweezers 201, the second density liquid bag 202, the spherical dipping block 203, the rectangular parallelepiped dipping block 204, the cube dipping block 205, a suspension apparatus 403, a pressure changing apparatus 406, and a second connection pipe 407.
It should be noted that the spherical immersion block 203, the rectangular immersion block 204 and the cubic immersion block 205 are all made of materials with the same density, the density is greater than the density of water and the density of liquid with the second density, the volume of the spherical immersion block 203 is the same as that of the cubic immersion block 205, and the volume of the rectangular immersion block 204 is greater than that of the spherical immersion block;
the cuboid immersion block and the cube immersion block are operated in the same way according to the operation steps of immersing the spherical immersion block 203, corresponding experimental data are recorded and compared with the experimental data, and the understanding of students on the buoyancy influenced by the volume is deepened.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A demonstration device for buoyancy teaching comprises a storage device (2), a first buoyancy demonstration device (3), a second buoyancy demonstration device (4) and a device storage box (1), and is characterized in that the first buoyancy demonstration device (3) is a sealable cuboid container with scales, and the second buoyancy demonstration device (4) comprises a liquid cylinder (401), a first density liquid (402), a suspension device (403) and a pressure change device (406); the device containing box (1) is used for containing the first buoyancy demonstration device (3) and the second buoyancy demonstration device (4).
2. Demonstration device for buoyancy teaching according to claim 1 characterized in that the first buoyancy demonstration device (3) further comprises a sealing cover (301).
3. Demonstration device for buoyancy teaching according to claim 1, characterised in that the second buoyancy demonstration device (4) further comprises a sealing plug (404), a first connection pipe (405) and a second connection pipe (407).
4. A demonstration device for buoyancy teaching according to claim 3, further comprising tweezers (201), second density liquid bag (202), spherical dipping block (203), cuboid dipping block (204) and cube dipping block (205), and the storage device (2) is used for storing the tweezers (201), the second density liquid bag (202), the spherical dipping block (203), the cuboid dipping block (204), the cube dipping block (205), the suspension device (403), the pressure changing device (406) and the second connecting pipe (407).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921050642.7U CN211578189U (en) | 2019-07-08 | 2019-07-08 | A presentation device for buoyancy teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921050642.7U CN211578189U (en) | 2019-07-08 | 2019-07-08 | A presentation device for buoyancy teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211578189U true CN211578189U (en) | 2020-09-25 |
Family
ID=72522039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921050642.7U Expired - Fee Related CN211578189U (en) | 2019-07-08 | 2019-07-08 | A presentation device for buoyancy teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211578189U (en) |
-
2019
- 2019-07-08 CN CN201921050642.7U patent/CN211578189U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20210708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |