CN206480253U - One kind measurement average speed experimental provision - Google Patents
One kind measurement average speed experimental provision Download PDFInfo
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- CN206480253U CN206480253U CN201720020378.7U CN201720020378U CN206480253U CN 206480253 U CN206480253 U CN 206480253U CN 201720020378 U CN201720020378 U CN 201720020378U CN 206480253 U CN206480253 U CN 206480253U
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- Prior art keywords
- mounting seat
- slide rail
- average speed
- sensor
- column
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Average speed experimental provision is measured the utility model discloses one kind, belong to teaching aid technical field, it includes the horizontal slide rail and upright slide rail being installed together, level is slidably fitted with horizontal slide on horizontal slide rail, it is hinged on horizontal slide and the first mounting seat is installed, it is vertically slidable on upright slide rail that vertical slide is installed, it is hinged on vertical slide and the second mounting seat is installed, second mounting seat is connected by bottom plate with the first mounting seat, bottom plate is provided with two row mounting posts, column slideway is respectively and fixedly provided with each column mounting post, steel ball is provided between two column slideways, column slideway is provided with flashboard close to one end of the second mounting seat, first sensor and second sensor of the bottom plate provided with connection timer.The utility model solves the technical problem that stable experiment is poor, measurement accuracy is low in measurement average speed experiment at present, is widely used in teaching.
Description
Technical field
The utility model is related to teaching aid technical field, and in particular to one kind measurement average speed experimental provision.
Background technology
Teaching demonstration is teacher in teaching, shows student to see on material object or audio-visual aids, or presenting a demonstration property reality
Test, perceptual knowledge is obtained to illustrate and confirm the method for taught knowledge by actual observation, teaching demonstration can obtain student
Vividly and intuitively perceptual knowledge, deepens the impression to learning object, and knowwhy on books and actual things are connected,
Form correct and deep concept；Some vivid abilities can be provided, cause the interest of study, collect the attention of middle school student
Power, contributes to the deep understanding to knowledge, memory and consolidates；Student can be made by observing and thinking deeply, thinking activities are carried out,
Development Watch power, imagination and thinking ability.The method of demonstration refers to that in teaching process teacher uses intuitive teaching aid, and cooperation is said
Award progress exemplary operation demonstration, a kind of teaching side of perceptual knowledge or proof theory knowledge is obtained in making student from
Method.
In middle school physical experiment, measurement average speed experiment is an emphasis and difficult point for teaching, because abstract after all,
So often using teaching aid carrys out lecture experiment.In demonstration, current teaching aid places dolly usually using tilting slide plate
In the high-end of slide plate, dolly is then unclamped, starts timing, dolly is slided to behind slide plate bottom, timing stops, and measures the length of slide plate
Then divided by the time used degree, calculates the average speed of dolly.The teaching aid timing exists usually using stopwatch, manual time-keeping
Very big error, influence experimental result accuracy, and dolly along inclined slide plate slide when stability it is poor, it is easy to side
Turn over, cause the failure of an experiment.
Therefore, based on drawbacks described above, in teaching aid technical field, still suffer from and grind for measurement average speed experimental provision
Study carefully with improved demand, this is also the study hotspot and emphasis in current teaching aid technical field, be even more this practicality newly
Where starting point and power that type is accomplished.
Utility model content
The purpose of this utility model is to provide a kind of measurement average speed experimental provision, average to solve measurement at present
The technical problem that stable experiment is poor in speed experiments, measurement accuracy is low.
In order to solve the above technical problems, the technical solution of the utility model is to provide a kind of measurement average speed experiment dress
Put, including the horizontal slide rail and upright slide rail being installed together, level is slidably fitted with horizontal slide on the horizontal slide rail, institute
State to be hinged on horizontal slide and the first mounting seat is installed, it is vertically slidable on the upright slide rail that vertical slide is installed, it is described perpendicular
To between slide and upright slide rail be provided with locking element；It is hinged on the vertical slide and the second mounting seat is installed, described second
Mounting seat is connected by bottom plate with first mounting seat, and the bottom plate is provided with solid in two row mounting posts, each column mounting post
Surely there is column slideway, steel ball is provided between column slideway described in two, the diameter of the steel ball is more than between column slideway described in two
Gap, the column slideway close to one end of second mounting seat be provided be used for stop the flashboard that the steel ball is tumbled, institute
The one end for stating close first mounting seat on bottom plate is provided with first sensor, the bottom plate close to second mounting seat
One end is provided with second sensor, and the first sensor and second sensor are all connected with timer.
As a kind of optimal technical scheme, be rotatablely equipped with screw mandrel on the upright slide rail, the screw mandrel with it is described vertical
Slide is threadedly coupled, and the end of the screw mandrel is provided with handwheel.
As a kind of optimal technical scheme, access slot is installed on the horizontal slide rail, the top of the access slot has opening
Portion, the open portion is located at the end of the column slideway.
As a kind of optimal technical scheme, the access slot is slidably mounted on the horizontal slide rail.
As a kind of optimal technical scheme, cavernous body is provided with the access slot.
The utility model has the following advantages that：
(1) because the diameter of steel ball is more than the gap between two column slideways, when steel ball is tumbled between two column slideways
Be unlikely to de-orbit, add the stability of experiment, but due to be provided with bottom plate connection timer first sensor and
Second sensor, timer receives second sensor signal timing and started, and receives first sensor signal timing and terminates so that should
Device can not only measure average speed when initial velocity is zero, and second sensor can also be arranged on to column slideway interposition
Put, average speed when measurement initial velocity is not zero has expanded scope of experiment, accurate timing substantially increases experiment effect.
(2) due to being rotatablely equipped with screw mandrel on upright slide rail, screw mandrel is rotated, and drives vertical slide vertically movable, Ke Yigai
Become the height and position of the second mounting seat, compared with the mode padded with traditional use object, it is this adjustment Stability Analysis of Structures and side
Just.
(3) due to being provided with cavernous body in access slot, after steel ball is tumbled to access slot, buffered by cavernous body, will not be anti-again
Bullet, will not be perceived by first sensor, further increase the degree of accuracy of experiment again because of bounce-back.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one.
Fig. 2 be in the utility model one A to structural representation.
In figure：1st, horizontal slide rail, 2, upright slide rail, 3, horizontal slide, 4, vertical slide, the 5, first mounting seat, 6, second
Mounting seat, 7, bottom plate, 8, mounting post, 9, column slideway, 10, steel ball, 11, flashboard, 12, first sensor, the 13, second sensing
Device, 14, timer, 15, screw mandrel, 16, handwheel, 17, access slot, 18, cavernous body.
Embodiment
Following examples are used to illustrate the utility model, but are not limited to scope of the present utility model.
Embodiment one
As depicted in figs. 1 and 2, the utility model provides a kind of measurement average speed experimental provision, including installed in one
The horizontal slide rail 1 and upright slide rail 2 risen, generally, upright slide rail 2 is fixed on level on the end of horizontal slide rail 1, horizontal slide rail 1
It is slidably fitted with horizontal slide 3, horizontal slide 3 to be hinged and vertically slidable installation on the first mounting seat 5, upright slide rail 2 is installed
There is vertical slide 4, locking element is provided between vertical slide 4 and upright slide rail 2, locking element is usually holding screw, vertically
After the adjustment good position of slide 4, locked using locking element so that vertical slide 4 is maintained at the position；It is hinged on vertical slide 4
Second mounting seat 6 is installed, the second mounting seat 6 is connected by bottom plate 7 with the first mounting seat 5, horizontal slide 3 is free end, can
Horizontal level is changed with the change with the vertical height and position of slide 4, bottom plate 7 is provided with two row mounting posts 8, each column mounting post
Be respectively and fixedly provided with 8 between column slideway 9, two column slideways 9 and be provided with steel ball 10, the diameter of steel ball 10 be more than two column slideways 9 it
Between gap, steel ball 10 is unlikely to de-orbit when tumbling between two column slideways 9, adds the stability of experiment, column
Slideway 9 is provided with close to one end of the second mounting seat 6 to be used to stop on the flashboard 11 that steel ball 10 is tumbled, bottom plate 7 close to the first installation
One end of seat 5 is provided with first sensor 12, bottom plate 7 is provided with second sensor 13 close to one end of the second mounting seat 6, and first passes
Sensor 12 and second sensor 13 are all connected with timer 14, and timer 14 is usually electronic timing set, and can directly buy makes
With during setting, receiving the signal timing of second sensor 13 and start, receive the signal timing of first sensor 12 and terminate.The subscript of bottom plate 7
There is scale, be easy to record the position of steel ball 10, also allow for recording the position of first sensor 12 and second sensor 13, therefore,
The device can not only measure average speed when initial velocity is zero, second sensor 13 can also be arranged on into column slideway 9
Centre position, average speed when measurement initial velocity is not zero.
During experiment, vertical slide 4 is adjusted so that column slideway 9 is higher than the first mounting seat close to one end of the second mounting seat 6
Steel ball 10, is fixed on column slideway 9 by 5 one end using flashboard 11 so that second sensor 13 detects steel ball 10,
This, second sensor 13 can use limit switch or proximity switch, and first is installed on the bottom plate 7 of the end of column slideway 9
Sensor 12, can be detected, and record the position of first sensor 12 and second sensor 13 when steel ball 10 is tumbled in the position
Put, open flashboard 11, steel ball 10 is tumbled, when leaving second sensor 13, second sensor 13 just gives the signal of timer 14, timing
Device 14 starts timing, when steel ball 10 is tumbled to 12 position of first sensor, and first sensor 12 just gives the signal of timer 14, timing
Device 14 stops timing, and the time is recorded according to the distance between first sensor 12 and second sensor 13 divided by timer 14,
Calculate the average speed that steel ball 10 is tumbled.
It is, of course, also possible to which second sensor 13 is arranged on into the centre position of column slideway 9, and the position is recorded, work as steel ball
10 when being moved to second sensor 13, and timer 14 starts timing, when tumbling to first sensor 12, and timer 14 stops meter
When, it just can measure the average speed in length distance when initial velocity is not zero.
Screw mandrel 15 is rotatablely equipped with by bearing block on upright slide rail 2, screw mandrel 15 is threadedly coupled with vertical slide 4, screw mandrel
15 end is provided with handwheel 16, rotates handwheel 16 so that screw mandrel 15 is rotated, and drives vertical slide 4 vertically movable, changes second
It is this to adjust Stability Analysis of Structures and facilitate compared with the height and position of mounting seat 6, the mode padded with traditional use object.
Embodiment two
The utility model provides a kind of measurement average speed experimental provision, and its structure and embodiment one are essentially identical, its
Difference is, on the basis of embodiment one, following characteristics are added again, is made that further improvement, improves this practicality
New performance.
As shown in figure 1, being provided with access slot 17 on horizontal slide rail 1, the top of access slot 17 has opening portion, and open portion is located at post
The end of shape slideway 9, falls on when steel ball 10 can be caused to tumble in access slot 17.Access slot 17 is slidably mounted on horizontal slide rail 1, when
When adjusting column slideway 9 close to the height of the one end of the second mounting seat 6, it is easy to move access slot 17.
Embodiment three
The utility model provides a kind of measurement average speed experimental provision, and its structure and embodiment two are essentially identical, its
Difference is, on the basis of embodiment two, and further improvement is made that again.
As shown in figure 1, cavernous body 18 is provided with access slot 17, after steel ball 10 is tumbled to access slot 17, by cavernous body 18
Buffering, will not rebound again, will not be perceived again by first sensor 12 because of bounce-back, further increase the degree of accuracy of experiment.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, the these modifications or improvements on the basis of without departing from the utility model spirit, belonging to the utility model will
Seek the scope of protection.
Claims (5)
1. one kind measurement average speed experimental provision, including the horizontal slide rail and upright slide rail being installed together, it is characterised in that
Level, which is slidably fitted with to be hinged on horizontal slide, the horizontal slide, on the horizontal slide rail is provided with the first mounting seat, described
It is vertically slidable on upright slide rail that vertical slide is installed, locking element is provided between the vertical slide and upright slide rail；It is described
It is hinged on vertical slide and the second mounting seat is installed, second mounting seat is connected by bottom plate with first mounting seat, institute
Bottom plate is stated provided with two row mounting posts, column slideway is respectively and fixedly provided with each column mounting post, steel is provided between column slideway described in two
Ball, the diameter of the steel ball is more than the gap between column slideway described in two, and the column slideway is close to second mounting seat
One end be provided with and be used to stop on the flashboard that the steel ball is tumbled, the bottom plate close to one end of first mounting seat provided with the
On one sensor, the bottom plate second sensor, the first sensor and the are provided with close to one end of second mounting seat
Two sensors are all connected with timer.
2. average speed experimental provision is measured as claimed in claim 1, it is characterised in that be rotatablely installed on the upright slide rail
There is screw mandrel, the screw mandrel is threadedly coupled with the vertical slide, and the end of the screw mandrel is provided with handwheel.
3. average speed experimental provision is measured as claimed in claim 1 or 2, it is characterised in that installed on the horizontal slide rail
There is access slot, the top of the access slot has opening portion, and the open portion is located at the end of the column slideway.
4. average speed experimental provision is measured as claimed in claim 3, it is characterised in that the access slot is slidably mounted on described
On horizontal slide rail.
5. average speed experimental provision is measured as claimed in claim 3, it is characterised in that cavernous body is provided with the access slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020378.7U CN206480253U (en) | 2017-01-09 | 2017-01-09 | One kind measurement average speed experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020378.7U CN206480253U (en) | 2017-01-09 | 2017-01-09 | One kind measurement average speed experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206480253U true CN206480253U (en) | 2017-09-08 |
Family
ID=59751134
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720020378.7U Expired - Fee Related CN206480253U (en) | 2017-01-09 | 2017-01-09 | One kind measurement average speed experimental provision |
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| Country | Link |
|---|---|
| CN (1) | CN206480253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847095A (en) * | 2018-07-20 | 2018-11-20 | 佛山科枫文化传播有限公司 | A kind of acceleration physics facility |
-
2017
- 2017-01-09 CN CN201720020378.7U patent/CN206480253U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847095A (en) * | 2018-07-20 | 2018-11-20 | 佛山科枫文化传播有限公司 | A kind of acceleration physics facility |
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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: 20170908 Termination date: 20190109 |