CN209543686U - A kind of buoyancy demonstration device for physical teaching purpose - Google Patents
A kind of buoyancy demonstration device for physical teaching purpose Download PDFInfo
- Publication number
- CN209543686U CN209543686U CN201920011639.8U CN201920011639U CN209543686U CN 209543686 U CN209543686 U CN 209543686U CN 201920011639 U CN201920011639 U CN 201920011639U CN 209543686 U CN209543686 U CN 209543686U
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- China
- Prior art keywords
- floating block
- buoyancy
- fixedly installed
- vertical bar
- test chamber
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Abstract
The utility model discloses a kind of buoyancy demonstration device for physical teaching purpose, including pedestal, rotating disc, observe case, weighing apparatus, first buoyancy measuring device and the second buoyancy measuring device, observation case is fixedly installed on the upper surface of rotating disc, observe the first test chamber of inside and the second test chamber of case, the first vertical bar is fixedly installed within first test chamber vertically, there are three vertical bars for fixed setting vertically within second test chamber, different floating blocks is respectively arranged on vertical bar, first buoyancy measuring device includes graduated cylinder and water-holding cup, the side of graduated cylinder is provided with outlet conduit, outlet conduit is connected to water-holding cup, steel strand exerciser is fixedly installed on the lower end of electric hydaulic telescopic rod vertically, the utility model can be by observing the experiment of case intuitively buoyancy and fluid density at demonstration, the relationship of physical quality and volume, and it is measured by the first buoyancy Device and the second buoyancy measuring device can measure buoyancy, be compared to each other, and reduce experimental error.
Description
Technical field
The utility model relates to physics teaching equipment technical fields, and in particular to a kind of physics teaching is filled with buoyancy demonstration
It sets.
Background technique
Some vital phenomenas are explained by physics teaching big city, these phenomenon some are very common, and some is not very common, teacher
During giving lessons, the knowledge of some theoretical properties often can be only explained, classmates still could not better understand these phenomenons
The reason of generation, causes classroom teaching efficiency low, and teaching process is uninteresting, and the teaching of buoyancy is an emphasis, is being floated
In power teaching process, teacher can generally impart knowledge to students in conjunction with buoyancy demonstration experiment, in measurement object suffered buoyancy in a liquid
In Physical Experiment, the liquid of object discharge certain volume in a liquid is soaked, gravity suffered by the liquid of this partial volume is equal to
In buoyancy physical teaching course suffered by object, so regarding to the issue above it is proposed that a kind of reason teaching is filled with buoyancy demonstration
It sets.
Utility model content
(1) technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a kind of buoyancy demonstration device for physical teaching purpose, it can be by observing case
Experiment intuitively buoyancy and fluid density at demonstration, the relationship of physical quality and volume, and pass through the first buoyancy measuring device
With the second buoyancy measuring device, it can measure buoyancy, be compared to each other, reduce experimental error.
(2) technical solution
The utility model is achieved through the following technical solutions: the utility model proposes a kind of physics teaching buoyancy demonstrations
Device, which is characterized in that including pedestal, rotating disc, observation case, weighing apparatus, the first buoyancy measuring device and the measurement of the second buoyancy
Device, fixed setting is welded with transverse slat between the pillar, the rotating disc passes through bearing there are two pillar on the pedestal
It is rotatably dispose on pedestal, the observation case is fixedly installed on the upper surface of rotating disc, and the inside for observing case passes through partition point
It is divided into the first test chamber and the second test chamber, is fixedly installed the first vertical bar within first test chamber vertically, described second
The second vertical bar, third vertical bar and the 4th vertical bar are fixedly installed within test chamber vertically, slides and is arranged on first vertical bar
Have the first floating block, on second vertical bar, third vertical bar and the 4th vertical bar respectively sliding be arranged the second floating block, third floating block and
4th floating block, the weighing apparatus are fixedly installed on pedestal, and the first buoyancy measuring device includes graduated cylinder and water-holding cup, institute
It states graduated cylinder to be fixedly installed on pedestal, water-holding cup is set on the weighing plate of weighing apparatus, and the side of the graduated cylinder is provided with
Outlet conduit, the outlet conduit are connected to water-holding cup, and the second buoyancy measuring device includes electric hydaulic telescopic rod and spring
Chest expander, the vertical position that the electric hydaulic telescopic rod corresponds to graduated cylinder are fixedly installed on the lower end surface of transverse slat, the bullet vertically
Spring chest expander is fixedly installed on the lower end of electric hydaulic telescopic rod vertically.
Further, the lower end surface of the pedestal is bonded with anti-skid rubber cushion.
Further, the outer ring body of the bearing is welded on pedestal, and the inner ring body of bearing is welded on rotating disc.
Further, it is provided with the first outlet pipe on rear side of first test chamber, is arranged on first outlet pipe
There is the first control valve.
Further, it is provided with the second outlet pipe on rear side of second test chamber, is arranged on second outlet pipe
There is the second control valve.
Further, first floating block is wooden floating block, and the side of the first floating block is provided with scale along its short transverse
Mark.
Further, second floating block is iron floating block, and the third floating block and the 4th floating block are wooden floating block, institute
State that the second floating block is identical with third floating block volume, the volume of the 4th floating block is greater than the volume of third floating block.
(3) beneficial effect
The utility model compared with the existing technology, has the advantages that
1. the inside of observation case is divided into the first test chamber and the second test chamber by partition, and first in the first test chamber
Sliding sleeve is equipped with the first wooden floating block on vertical bar, by adding the liquid of different densities, observation first to the first test chamber
The gap of the scale mark of floating block side, can visually demonstrate out influence of the fluid density to buoyancy, be provided in the second test chamber
Three vertical bars, three floating blocks of difference, to the second test chamber adding liquid, the second floating block is iron floating block, third floating block and the 4th
Floating block is wooden floating block, and the second floating block is identical with third floating block volume, and the volume of the 4th floating block is greater than the volume of third floating block,
Second floating block and third floating block compare the influence that can intuitively find out mass of object to buoyancy, third floating block in the float position of vertical bar
Compare the influence that can intuitively find out volume to buoyancy with the float position of the 4th floating block.
2. observation case is set on rotating disc, usable rotational direction faces student, convenient for observation.
3. the first buoyancy measuring device and the second buoyancy measuring device can measure buoyancy, the second buoyancy measuring device is logical
The weight of the hung floating block of steel strand exerciser is crossed, and enters the weight of water and subtracts each other, gained difference is buoyancy value, and the first buoyancy is surveyed
Amount device measures the weight of floating block water be discharged, as buoyancy value, the first buoyancy measuring device and the second buoyancy measuring device
The buoyancy value obtained is compared to each other, and can reduce experimental error.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is the left view that case is observed in the utility model.
Fig. 3 is the right view that case is observed in the utility model.
1- pedestal；2- rotating disc；3- observes case；4- weighing apparatus；5- the first buoyancy measuring device；The second buoyancy of 6- measurement dress
It sets；The first floating block of 7-；The second floating block of 8-；9- third floating block；The 4th floating block of 10-；11- pillar；12- transverse slat；13- anti-slip rubber
Pad；21- bearing；The first test chamber of 31-；The second test chamber of 32-；33- partition；51- graduated cylinder；52- water-holding cup；53- outlet conduit；
61- electric hydaulic telescopic rod；62- steel strand exerciser；71- scale mark；The first vertical bar of 311-；The first outlet pipe of 312-；313-
First control valve；The second vertical bar of 321-；322- third vertical bar；The 4th vertical bar of 323-；The second outlet pipe of 324-；325- second is controlled
Valve；.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of buoyancy demonstration device for physical teaching purpose as shown in Figure 1, Figure 2 and Figure 3, including pedestal 1, rotating disc 2, observation
Case 3, weighing apparatus 4, the first buoyancy measuring device 5 and the second buoyancy measuring device 6, on the pedestal 1 there are two fixed settings
Pillar 11 is welded with transverse slat 12 between the pillar 11, and the rotating disc 2 is rotatably dispose on pedestal 1 by bearing 21, institute
The upper surface that observation case 3 is fixedly installed on rotating disc 2 is stated, the inside of observation case 3 is divided into the first test chamber 31 by partition 33
With the second test chamber 32, it is fixedly installed the first vertical bar 311, second test chamber 32 vertically within first test chamber 31
Within be fixedly installed the second vertical bar 321, third vertical bar 322 and the 4th vertical bar 323 vertically, it is sliding on first vertical bar 311
Dynamic to be arranged with the first floating block 7, sliding is arranged the respectively on second vertical bar 321, third vertical bar 322 and the 4th vertical bar 323
Two floating blocks 8, third floating block 9 and the 4th floating block 10, the weighing apparatus 4 are fixedly installed on pedestal 1, the first buoyancy measurement
Device 5 includes graduated cylinder 51 and water-holding cup 52, and the graduated cylinder 51 is fixedly installed on pedestal 1, and water-holding cup 52 is set to weighing apparatus 4
Weighing plate on, the side of the graduated cylinder 51 is provided with outlet conduit 53, and the outlet conduit 53 is connected to water-holding cup 52, described
Second buoyancy measuring device 6 includes electric hydaulic telescopic rod 61 and steel strand exerciser 62, and the electric hydaulic telescopic rod 61 is corresponding
The vertical position of graduated cylinder 51 is fixedly installed on the lower end surface of transverse slat 12 vertically, and the steel strand exerciser 62 is fixedly installed on electricity vertically
The lower end of hydrodynamic pressure telescopic rod 61.
Wherein, the lower end surface of the pedestal 1 is bonded with anti-skid rubber cushion 13；The outer ring body of the bearing 21 is welded in pedestal
On 1, the inner ring body of bearing 21 is welded on rotating disc 2；The rear side of first test chamber 31 is provided with the first outlet pipe
312, the first control valve 313 is provided on first outlet pipe 312；The rear side of second test chamber 32 is provided with second
Outlet pipe 324 is provided with the second control valve 325 on second outlet pipe 324；First floating block 7 is wooden floating block, the
The side of one floating block 7 is provided with scale mark 71 along its short transverse；Second floating block 8 is iron floating block, and the third is floating
Block 9 and the 4th floating block 10 are wooden floating block, and second floating block 8 is identical with 9 volume of third floating block, the 4th floating block 10
Volume is greater than the volume of third floating block 9.
A kind of buoyancy demonstration device for physical teaching purpose that the utility model is mentioned, when specifically used, the lower end of pedestal 1
Face is bonded with anti-skid rubber cushion 13, is placed on desktop, will not move easily, can be more steady, and rotating disc 2 passes through bearing 21
It is rotatably dispose on pedestal 1, observation case 3 is fixedly installed on the upper surface of rotating disc 2, rotates observation 3 face of case by rotating disc 2
To student, observation is easily facilitated, the inside of observation case 3 is divided into the first test chamber 31 and the second test chamber 32 by partition 33,
The first vertical bar 311 is fixedly installed within first test chamber 31 vertically, is fixedly installed second vertically within the second test chamber 32
Vertical bar 321, third vertical bar 322 and the 4th vertical bar 323, sliding sleeve is equipped with the first floating block 7, the second vertical bar on the first vertical bar 311
321, sliding is arranged the second floating block 8, third floating block 9 and the 4th floating block 10 respectively on third vertical bar 322 and the 4th vertical bar 323,
First floating block 7 is wooden floating block, and the side of the first floating block 7 is provided with scale mark 71 along its short transverse, to the first test chamber
Then the solution of 31 addition different densities more observes buoyancy in 311 float position of the first vertical bar according to the first floating block 7, if first
Floating block 7 floats on liquid surface, and in combination with 71 observation of scale mark of 7 side of the first floating block, it is close can intuitively to demonstrate out liquid
The hardness to buoyancy is spent, then to the second test chamber 32 plus water, the second floating block 8 is iron floating block, third floating block 9 and the 4th floating block
10 be wooden floating block, and the second floating block 8 is identical with 9 volume of third floating block, and the volume of the 4th floating block 10 is greater than the body of third floating block 9
Product, the height and position of the second floating block 8 and third floating block 9 on vertical bar compare, and can visually demonstrate place's physical quality to buoyancy
It influences, the height and position of third floating block 9 and the 4th floating block 10 on vertical bar compares, and can visually demonstrate place's volume to the shadow of buoyancy
Ring, by above comparison, can visual representation go out fluid density, influence of the quality and volume of object to buoyancy, so that experiment
It is more lively.
Weighing apparatus 4 is fixedly installed on pedestal 1, and the first buoyancy measuring device 5 includes graduated cylinder 51 and water-holding cup 52, graduated cylinder
51 are fixedly installed on pedestal 1, and the side that water-holding cup 52 is set to graduated cylinder 51 on the weighing plate of weighing apparatus 4 is provided with water outlet
Pipeline 53, outlet conduit 53 are connected to water-holding cup 52, and to graduated cylinder 51 plus water, the water surface is concordant with outlet conduit 53, the measurement of the second buoyancy
Device 6 includes electric hydaulic telescopic rod 61 and steel strand exerciser 62, the vertical position of the corresponding graduated cylinder 51 of electric hydaulic telescopic rod 61
It is fixedly installed on the lower end surface of transverse slat 12 vertically, steel strand exerciser 62 is fixedly installed on vertically under electric hydaulic telescopic rod 61
End, floating block is hung on the hook of 62 lower end of steel strand exerciser, then weighed amount is adjusted by electric hydaulic telescopic rod 61
So that floating block is immersed in the water, the water that graduated cylinder 51 overflows at this time is discharged into water-holding cup 52 by outlet conduit 53, overflows at 4 title of weighing apparatus
The weight of water is buoyancy value, and the floating block on steel strand exerciser 62 is echoed on steel strand exerciser 62 because of hand buoyancy at this time
Second weight is shown, the difference of two weight is buoyancy value, passes through the first buoyancy measuring device 5 and the second buoyancy measurement dress
It sets the buoyancy value that 6 are obtained to compare, experimental error can be reduced, so that experiment is more accurate.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, it is all described in the claims.
Claims (7)
1. a kind of buoyancy demonstration device for physical teaching purpose, it is characterised in that: including pedestal (1), rotating disc (2), observation case (3),
Weighing apparatus (4), the first buoyancy measuring device (5) and the second buoyancy measuring device (6) are fixedly installed on the pedestal (1)
Two pillars (11) are welded with transverse slat (12) between the pillar (11), and the rotating disc (2) passes through bearing (21) rotation setting
On pedestal (1), observation case (3) is fixedly installed on the upper surfaces of rotating disc (2), observe the inside of case (3) by every
Plate (33) is divided into the first test chamber (31) and the second test chamber (32), is fixedly installed vertically within first test chamber (31)
Have the first vertical bar (311), is fixedly installed the second vertical bar (321), third vertical bar vertically within second test chamber (32)
(322) and the 4th vertical bar (323), sliding sleeve is equipped with the first floating block (7) on first vertical bar (311), second vertical bar
(321), sliding is arranged the second floating block (8), third floating block (9) and the respectively on third vertical bar (322) and the 4th vertical bar (323)
Four floating blocks (10), the weighing apparatus (4) are fixedly installed on pedestal (1), and the first buoyancy measuring device (5) includes graduated cylinder
(51) it is fixedly installed on pedestal (1) with water-holding cup (52), the graduated cylinder (51), water-holding cup (52) is set to weighing apparatus (4)
Weighing plate on, the side of the graduated cylinder (51) is provided with outlet conduit (53), and the outlet conduit (53) is connected to water-holding cup
(52), the second buoyancy measuring device (6) includes electric hydaulic telescopic rod (61) and steel strand exerciser (62), the electronic liquid
The vertical position of pressure telescopic rod (61) corresponding graduated cylinder (51) is fixedly installed on the lower end surface of transverse slat (12), the spring tension vertically
Device (62) is fixedly installed on the lower end of electric hydaulic telescopic rod (61) vertically.
2. a kind of buoyancy demonstration device for physical teaching purpose according to claim 1, it is characterised in that: the pedestal (1)
Lower end surface is bonded with anti-skid rubber cushion (13).
3. a kind of buoyancy demonstration device for physical teaching purpose according to claim 1, it is characterised in that: the bearing (21)
Outer ring body is welded on pedestal (1), and the inner ring body of bearing (21) is welded on rotating disc (2).
4. a kind of buoyancy demonstration device for physical teaching purpose according to claim 1, it is characterised in that: first test chamber
(31) it is provided on rear side of the first outlet pipe (312), is provided with the first control valve (313) on first outlet pipe (312).
5. a kind of buoyancy demonstration device for physical teaching purpose according to claim 1, it is characterised in that: second test chamber
(32) it is provided on rear side of the second outlet pipe (324), is provided with the second control valve (325) on second outlet pipe (324).
6. a kind of buoyancy demonstration device for physical teaching purpose according to claim 1, it is characterised in that: first floating block
It (7) is wooden floating block, the side of the first floating block (7) is provided with scale mark (71) along its short transverse.
7. a kind of buoyancy demonstration device for physical teaching purpose according to claim 1, it is characterised in that: second floating block
It (8) is iron floating block, the third floating block (9) and the 4th floating block (10) are wooden floating block, second floating block (8) and third
Floating block (9) volume is identical, and the volume of the 4th floating block (10) is greater than the volume of third floating block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920011639.8U CN209543686U (en) | 2019-01-04 | 2019-01-04 | A kind of buoyancy demonstration device for physical teaching purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920011639.8U CN209543686U (en) | 2019-01-04 | 2019-01-04 | A kind of buoyancy demonstration device for physical teaching purpose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209543686U true CN209543686U (en) | 2019-10-25 |
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ID=68268510
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920011639.8U Expired - Fee Related CN209543686U (en) | 2019-01-04 | 2019-01-04 | A kind of buoyancy demonstration device for physical teaching purpose |
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|---|---|
| CN (1) | CN209543686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299165A (en) * | 2021-05-11 | 2021-08-24 | 湖州师范学院 | Demonstration device for visually verifying Archimedes principle |
-
2019
- 2019-01-04 CN CN201920011639.8U patent/CN209543686U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299165A (en) * | 2021-05-11 | 2021-08-24 | 湖州师范学院 | Demonstration device for visually verifying Archimedes principle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 Termination date: 20210104 |