CN108597325A - A kind of bob-weight force demonstration apparatus - Google Patents
A kind of bob-weight force demonstration apparatus Download PDFInfo
- Publication number
- CN108597325A CN108597325A CN201810800623.5A CN201810800623A CN108597325A CN 108597325 A CN108597325 A CN 108597325A CN 201810800623 A CN201810800623 A CN 201810800623A CN 108597325 A CN108597325 A CN 108597325A
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- China
- Prior art keywords
- disk
- flume
- inverted
- bob
- shaped pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Educational Administration (AREA)
- Computational Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a kind of bob-weight force demonstration apparatus, including holder and levitation device, the holder includes lower flume, upper flume and pillar, the bottom interior wall of the lower flume is welded with the pillar being vertically arranged, and one end outer wall of the pillar far from lower flume is welded with upper flume, the bottom interior wall of the upper flume is welded with supporting rod, the levitation device includes disk and inverted U-shaped pipe, the disk is placed in the top exterior walls of supporting rod, and the top exterior walls of disk offer mounting hole, the inverted U-shaped pipe is plugged in mounting hole.The present invention can reach the demonstrating effect of anti-gravity, and design method is ingenious, and demonstrating effect is stablized, easy to operate, and due to can persistently add water, the experimental phenomena duration is long, can be used as good teaching demonstration device in physics demonstration experiment.
Description
Technical field
The present invention relates to a kind of physics demonstration experiment devices, and in particular to a kind of bob-weight force demonstration apparatus.
Background technology
Anti-gravity pelletron, also known as anti-gravity chain fountain, are interesting physical phenomenons, and hand takes a tank for filling pelletron
Son is only shown in that chain overcomes gravity and depicts the parabola arrival top for being higher by tank mouth together with one of pelletron of firmly dishing out
It rapidly falls behind end, this section of magical video has attracted 2,800,000 clicks on YouTube, issues the Steve Mould of video
Oneself cannot all explain this phenomenon, and under specific circumstances, a chain seems that the state of anti-gravity can be shown, as fountain
The reason of flow of middle ejection equally moves, this phenomenon behind, is disclosed by physicist recently, this research is for existing
Much application is of great significance some, including tethered satellite and space elevator etc., but anti-gravity chain fountain phenomenon
Demonstrate stability it is poor, duration of experiment is limited by pelletron length, thus the time do not grow, it is clear that can no longer meet experiment
Demonstration demand.
Invention content
Technical problems based on background technology, the present invention propose a kind of bob-weight force demonstration apparatus.
A kind of bob-weight force demonstration apparatus proposed by the present invention, including holder and levitation device, the holder include lower flume,
Upper flume and pillar, the bottom interior wall of the lower flume are welded with the pillar being vertically arranged, and the one end of pillar far from lower flume
Outer wall is welded with upper flume, and the bottom interior wall of the upper flume is welded with supporting rod, and the levitation device includes disk and inverted U-shaped
Pipe, the disk are placed in the top exterior walls of supporting rod, and the top exterior walls of disk offer mounting hole, described inverted U-shaped
Pipe is plugged in mounting hole.
Preferably, the upper flume and lower flume are cylindrical structure, and the volume of lower flume is more than the appearance of upper flume
Product.
Preferably, the quantity of the inverted U-shaped pipe is three, and three inverted U-shaped pipes are circumferentially symmetrically distributed in disk
On.
Preferably, the quantity of the supporting rod is three, and three equidistant annular spreads of supporting rod are at the bottom of upper flume
On portion's inner wall.
Preferably, the inverted U-shaped pipe is Teflon material, and length of the inverted U-shaped pipe one end apart from disk is more than to fall U
Length of the shape pipe other end apart from disk.
Preferably, the disk is cylindrical structure, and the cross-sectional area of disk is less than the cross-sectional area of upper flume.
Beneficial effects of the present invention are：It can be during being continuously added into liquid to upper flume, liquid is in inverted U-shaped pipe
Top flowing when momentum suddenly change, upward impulse force will be generated, to make levitation device suspend, reach anti-gravity
Demonstrating effect, design method is ingenious, and demonstrating effect is stablized, easy to operate, and due to can persistently add water, when experimental phenomena continues
Between it is long, can be used as good teaching demonstration device in physics demonstration experiment.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of bob-weight force demonstration apparatus proposed by the present invention；
Fig. 2 is a kind of supporting structure schematic diagram of bob-weight force demonstration apparatus proposed by the present invention；
Fig. 3 is a kind of supporting structure vertical view of bob-weight force demonstration apparatus proposed by the present invention；
Fig. 4 is a kind of levitation device structural schematic diagram of bob-weight force demonstration apparatus proposed by the present invention；
Fig. 5 is a kind of levitation device enlarged structure schematic diagram of bob-weight force demonstration apparatus proposed by the present invention.
In figure：It is 1 holder, 2 levitation devices, 11 lower flumes, 12 upper flumes, 13 pillars, 14 supporting rods, 21 disks, 22 inverted U-shaped
Pipe.
Specific implementation mode
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 describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-5, a kind of bob-weight force demonstration apparatus, including holder 1 and levitation device 2, which is characterized in that holder includes
Lower flume 11, upper flume 12 and pillar 13, the bottom interior wall of lower flume 11 is welded with the pillar 13 being vertically arranged, and pillar 13 is remote
One end outer wall from lower flume 11 is welded with upper flume 12, and the bottom interior wall of upper flume 12 is welded with supporting rod 14, levitation device 2
Including disk 21 and inverted U-shaped pipe 22, disk 21 is placed in the top exterior walls of supporting rod 14, and the top exterior walls of disk 21 are opened
Equipped with mounting hole, inverted U-shaped pipe 22 is plugged in mounting hole.
In the present invention, upper flume 12 and lower flume 11 are cylindrical structure, and the volume of lower flume 11 is more than upper flume
The quantity of 12 volume, inverted U-shaped pipe 22 is three, and three inverted U-shaped pipes 22 are circumferentially symmetrically distributed on disk 21, branch
The quantity of strut 14 is three, and three 14 equidistant annular spreads of supporting rod are in the bottom interior wall of upper flume 12, inverted U-shaped circle
Pipe 22 is Teflon material, and length of 22 one end of inverted U-shaped pipe apart from disk 21 is more than inverted U-shaped pipe 22 other end distance circle
The length of disk 21, disk 21 is cylindrical structure, and the cross-sectional area of disk 21 is less than the cross-sectional area of upper flume 12.
In presentation process, liquid is added into upper flume 12, under gravity liquid from upper flume 12 by inverted U-shaped
22 high velocity stream of pipe will generate upwards to lower flume 11, liquid momentum suddenly change when the top of inverted U-shaped pipe 22 is flowed
Impulse force, when impulse force is more than liquid gravity in levitation device 2 and inverted U-shaped pipe 22, levitation device 2 just suspends, and reaches anti-
The demonstrating effect of gravity.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of bob-weight force demonstration apparatus, including holder (1) and levitation device (2), which is characterized in that the holder includes lower water
Slot (11), upper flume (12) and pillar (13), the bottom interior wall of the lower flume (11) are welded with the pillar (13) being vertically arranged,
And one end outer wall of the pillar (13) far from lower flume (11) is welded with upper flume (12), the bottom interior wall weldering of the upper flume (12)
It is connected to supporting rod (14), the levitation device (2) includes disk (21) and inverted U-shaped pipe (22), and the disk (21) is placed on
In the top exterior walls of supporting rod (14), and the top exterior walls of disk (21) offer mounting hole, inverted U-shaped pipe (22) grafting
In mounting hole.
2. a kind of bob-weight force demonstration apparatus according to claim 1, which is characterized in that the upper flume (12) and lower flume
(11) it is cylindrical structure, and the volume of lower flume (11) is more than the volume of upper flume (12).
3. a kind of bob-weight force demonstration apparatus according to claim 1, which is characterized in that the number of the inverted U-shaped pipe (22)
Amount is three, and three inverted U-shaped pipes (22) are circumferentially symmetrically distributed on disk (21).
4. a kind of bob-weight force demonstration apparatus according to claim 1, which is characterized in that the quantity of the supporting rod (14) is
Three, and three equidistant annular spreads of supporting rod (14) are in the bottom interior wall of upper flume (12).
5. a kind of bob-weight force demonstration apparatus according to claim 1, which is characterized in that the inverted U-shaped pipe (22) is iron
Fluorine dragon material, and length of inverted U-shaped pipe (22) one end apart from disk (21) is more than inverted U-shaped pipe (22) other end apart from disk
(21) length.
6. a kind of bob-weight force demonstration apparatus according to claim 1, which is characterized in that the disk (21) is cylinder knot
Structure, and the cross-sectional area of disk (21) is less than the cross-sectional area of upper flume (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800623.5A CN108597325A (en) | 2018-07-20 | 2018-07-20 | A kind of bob-weight force demonstration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800623.5A CN108597325A (en) | 2018-07-20 | 2018-07-20 | A kind of bob-weight force demonstration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108597325A true CN108597325A (en) | 2018-09-28 |
Family
ID=63617813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810800623.5A Pending CN108597325A (en) | 2018-07-20 | 2018-07-20 | A kind of bob-weight force demonstration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108597325A (en) |
-
2018
- 2018-07-20 CN CN201810800623.5A patent/CN108597325A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180928 |
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| WD01 | Invention patent application deemed withdrawn after publication |