CN205656794U - A device for demonstrating leaning tower of piza experiment - Google Patents
A device for demonstrating leaning tower of piza experiment Download PDFInfo
- Publication number
- CN205656794U CN205656794U CN201620137476.4U CN201620137476U CN205656794U CN 205656794 U CN205656794 U CN 205656794U CN 201620137476 U CN201620137476 U CN 201620137476U CN 205656794 U CN205656794 U CN 205656794U
- Authority
- CN
- China
- Prior art keywords
- experiment
- demonstrating
- base
- support
- tower
- Prior art date
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a device for demonstrating leaning tower of piza experiment, include base and the support that links firmly " L " the shape on the base, the horizontal pole of support on be equipped with and hang the thing device, hang and be equipped with a pair of hand -held bells played by striking together on the base of thing device under, the utility model discloses with hanging the thing device experiment object of hoisting, it can the length setting to hang the thing line, has guaranteed that the experiment object on same water flat line, is equipped with a pair of hand -held bells played by striking together on the base, and an experiment object striking pair of hand -held bells played by striking together can send the sound, judges whether the experiment object falls to the ground simultaneously, a people observe examine the experiment object fall to the ground more accurate, this device simple structure moreover, easy to operate, convenient to use when classroom teaching.
Description
Technical field
This utility model relates to a kind of device for demonstrating tower of Pisa experiment, this device include base and be connected on base "
L
" support of shape.
Background technology
Not by any resistance, the object landed the most under gravity, is " freely falling body ".Such as the object fallen by resting state under terrestrial gravitation effect.Overhead near earth surface is considered as constant gravitational field.If do not considered atmospheric drag, the movement of falling object in this region is uniformly accelrated rectilinear motion.Its acceleration is constantly equal to acceleration of gravity
g
.Although the gravitation of the earth and object square are inversely proportional to earth center distance, but the radius of the earth much larger than freely falling body the distance of process, so gravitation is considered as constant at Near Ground, the acceleration of freely falling body is i.e. a constant constant.It is initial velocity be the uniformly accelrated rectilinear motion of zero.
During experiment with falling objects operation, it is necessary to two test articles drop simultaneously, and manual experiment always has error, and human eye also cannot determine whether to land simultaneously, on classroom, so demonstrate this experiment the most difficult.
Utility model content
The purpose of this utility model is to provide a kind of device for demonstrating tower of Pisa experiment, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme: for demonstrating the device of tower of Pisa experiment, including base and be connected on base "
L
" support of shape, the cross bar of described support is provided with and hangs thing device, and the base of the underface hanging thing device is provided with a pair of hand-held bells played by striking together.
Preferably, the described thing device that hangs is connected on the cross bar of support, including upper plate, flap and fixture block, one end of flap by revolute pair and upper plate one end is connected, flap and upper plate composition "
T
" shape inner chamber, clamping fixture block in inner chamber.
Preferably, being provided with jacking block in described upper plate, jacking block is connected with the button of the transverse slat upper surface of support.
Preferably, the described thing device that hangs has two.
Preferably, described fixture block lower surface connects test articles.
Preferably, described support and base junction are provided with triangle and fix seat, and it is one that triangle fixes seat with support.
Compared with prior art, the beneficial effects of the utility model are: this utility model is sling test articles with hanging thing device, hang thing line to arrange with length, it is ensured that test articles is on same horizontal line, and base is provided with a pair of hand-held bells played by striking together, test articles clashes into a pair of hand-held bells played by striking together can send sound, judgment experiment object lands the most simultaneously, and an eye-observation test articles lands more accurate, and this apparatus structure is simple, easily operation, easy to use when classroom instruction.
Accompanying drawing explanation
Figure
1
For this utility model structural representation.
Figure
2
For figure
1
In
4
Place's enlarged drawing.
In figure:
1
Base,
2
Support,
3
Triangle fixes seat,
4
Hang thing device,
5
Test articles,
6
Button,
7
Revolute pair,
8
Flap
,
10
Jacking block,
11
Fixture block,
12
A pair of hand-held bells played by striking together,
13
Upper plate.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to figure
1
, this utility model provides a kind of technical scheme: for demonstrating the device of tower of Pisa experiment, including base
1
Be connected in base
1
On "
L
" support of shape
2
, described support
2
Cross bar be provided with and hang thing device
4
, hang thing device
4
The base of underface
1
It is provided with a pair of hand-held bells played by striking together
12
, hang thing device
4
Just to a pair of hand-held bells played by striking together
12
, test articles drops a pair of hand-held bells played by striking together
12
Upper meeting sends sound, support
2
With base
1
Junction is provided with triangle and fixes seat
3
, triangle fixes seat
3
With support
2
It it is one.
Refer to figure
2
, hang thing device
4
It is connected in support
2
Cross bar on, including upper plate
13
, flap
8
And fixture block
11
, flap
8
One end pass through revolute pair
7
With upper plate
13
One end connect, flap
8
With upper plate
13
Constitute "
T
" shape inner chamber, clamping fixture block in inner chamber
11
, upper plate
13
With two pieces of flaps
8
By fixture block
11
It is connected to inner chamber, upper plate
13
Inside it is provided with jacking block
10
, jacking block
10
With support
2
The button of transverse slat upper surface
6
Connect, jacking block
10
There are two, fixture block
11
Lower surface connects test articles
5
, press the button
6
Jacking block
10
Eject flap
8
, fixture block
11
Connected test articles drops.
If hear is bell ring, then Success in Experiment.
Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. for demonstrating the device of tower of Pisa experiment, including base (1) and the support (2) of " L " shape that is connected on base (1), it is characterized in that: the cross bar of described support (2) is provided with and hangs thing device (4), the base (1) of the underface hanging thing device (4) is provided with a pair of hand-held bells played by striking together (12).
Device for demonstrating tower of Pisa experiment the most according to claim 1, it is characterized in that: the described thing device (4) that hangs is connected on the cross bar of support (2), including upper plate (13), flap (8) and fixture block (11), one end of flap (8) is connected with one end of upper plate (13) by revolute pair (7), flap (8) and upper plate (13) constitute "T"-shaped inner chamber, clamping fixture block (11) in inner chamber.
Device for demonstrating tower of Pisa experiment the most according to claim 2, it is characterised in that: being provided with jacking block (10) in described upper plate (13), jacking block (10) is connected with the button (6) of the transverse slat upper surface of support (2).
Device for demonstrating tower of Pisa experiment the most according to claim 1, it is characterised in that: the described thing device (4) that hangs has two.
Device for demonstrating tower of Pisa experiment the most according to claim 2, it is characterised in that: described fixture block (11) lower surface connects test articles (5).
Device for demonstrating tower of Pisa experiment the most according to claim 1, it is characterised in that: described support (2) and base (1) junction are provided with triangle and fix seat (3), and it is one that triangle fixes seat (3) with support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620137476.4U CN205656794U (en) | 2016-02-24 | 2016-02-24 | A device for demonstrating leaning tower of piza experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620137476.4U CN205656794U (en) | 2016-02-24 | 2016-02-24 | A device for demonstrating leaning tower of piza experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205656794U true CN205656794U (en) | 2016-10-19 |
Family
ID=57355820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620137476.4U Expired - Fee Related CN205656794U (en) | 2016-02-24 | 2016-02-24 | A device for demonstrating leaning tower of piza experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205656794U (en) |
-
2016
- 2016-02-24 CN CN201620137476.4U patent/CN205656794U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20161019 Termination date: 20180224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |