CN206271275U - A kind of easy friction force demonstration device - Google Patents
A kind of easy friction force demonstration device Download PDFInfo
- Publication number
- CN206271275U CN206271275U CN201621291066.1U CN201621291066U CN206271275U CN 206271275 U CN206271275 U CN 206271275U CN 201621291066 U CN201621291066 U CN 201621291066U CN 206271275 U CN206271275 U CN 206271275U
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- CN
- China
- Prior art keywords
- slide way
- functional slide
- baffle plate
- slideway
- adjustment plate
- 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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Abstract
The utility model discloses a kind of easy friction force demonstration device, including retractable support lever, supporting plate, Multi-functional slide way and baffle plate, the Multi-functional slide way is divided at least three points slideways, the other end that Multi-functional slide way described in space bar is equipped between each point of slideway bends obliquely, form bend, the top of the bend connects a telescopic mechanism, the telescopic mechanism includes the adjustment plate being connected with Multi-functional slide way, the adjustment plate inside is hollow, its section is identical with Multi-functional slide way cross sectional shape, and its cross section profile is slightly larger than Multi-functional slide way section, a groove is provided with above the adjustment plate, the baffle plate is located in groove, and extend to space bar outside, spring is provided between the baffle plate and the adjustment plate bottom.The utility model can be realized probing into and contrasting while the frictional force to various unlike materials, frictional force is embodied by way of more vivid, have the advantages that clever structure, cost of manufacture it is cheap with.
Description
Technical field
The utility model is related to middle school physical experiment, and in particular to a kind of easy friction force demonstration device.
Background technology
Frictional force is to hinder the power of relative motion of object, ubiquitous in life, and is also accounted in Middle School Physics study
According to considerable position, in recent years, the teaching of middle school physical experiment is generally Utopian theory teaching, analysis momentum, kinetic energy
During conservation, often object of research (bead etc.) is assumed to be in friction free ecotopia, for example, probing into machinery
In the examination question of energy law of conservation, often assume that gravitional force is all converted to kinetic energy, ignore air to experiment object (bead etc.)
Influence, or when the law of conservation of momentum is probed into, also often frictional force is ignored, only in the probe process to Newton's second law
In be related to, however, in actual life, frictional force is ubiquitous, and played during mechanical braking etc. very important
Effect, thus, it is necessary to the special Experimental Research set up to frictional force, to strengthen contacting for Physics Course and actual life,
Increase the interest and practicality of Physics Course Studying.
Utility model content
To solve the deficiency that prior art is present, the utility model discloses a kind of easy friction force demonstration device, should
In probe process for middle school physical experiment to frictional force, the utility model can be realized to the frictional force of various unlike materials
Probe into and contrast simultaneously, frictional force is embodied by way of more vivid, the utility model has clever structure, making
It is with low cost to have the advantages that.
To achieve the above object, concrete scheme of the present utility model is as follows：
A kind of easy friction force demonstration device, including retractable support lever, supporting plate, Multi-functional slide way and baffle plate,
The Multi-functional slide way is divided at least three points slideways, and space bar is equipped between each point of slideway, described
One end horizontal positioned of Multi-functional slide way, and each divides the upper surface of slideway with the paster of different coefficients of friction, with aspect
The influence of the slideway to ram speed of different coefficients of friction is probed into life in experimentation, and the other end of the Multi-functional slide way is oblique
Be bent upwards, form bend, the top of the bend connects an adjustment plate, the adjustment plate inside be it is hollow, its section with it is many
Function the cross section of slideway shape is identical, and its cross section profile is slightly larger than Multi-functional slide way section, convenient directly to adjust when mounted
Sleeve-board is provided with a groove mounted in the upper end of bend above the adjustment plate, the length of the groove is slightly less than Multi-functional slide way
Width, the baffle plate is located in groove, and length is slightly less than groove, and extends to space bar outside, during ensureing to be tested,
The sliding block on three points of slideways can be simultaneously blocked, spring is provided between the baffle plate and the adjustment plate bottom, carry out reality
When testing, baffle plate can be pressed into groove, to realize that three sliding blocks, with time dot crawl, reduce the External Error of experimentation, protected
Demonstrate,prove the unicity of experimental variable；
The retractable support lever is located at the rear side of the Multi-functional slide way, the scalable branch adjacent with the bend
The top side of strut is provided with supporting plate, and the supporting plate is connected with described adjustment plate bottom, the center of the supporting plate with
The baffle plate is in same level with the cross facet of slideway.
Preferably, the side of the baffle plate is provided with one by moving part, and described is a L-type handle by moving part, during experiment, with logical
Cross hand pressure press part by baffle plate be pressed into groove in, while can also prevent when baffle bottom groove is damaged, it is impossible to which baffle plate is smooth
Ejection, so as to influence device to use the generation of this problem.
Preferably, paster appended by three points of slideways is respectively polishing sheet metal, sand paper and nylon cloth.
The beneficial effects of the utility model：
The utility model can be realized probing into and contrasting while the frictional force to various unlike materials, frictional force is passed through more
For the mode of image is embodied, and a point slideway paster can be changed arbitrarily, and strong adaptability, demonstration scope is wide；
The utility model slides while realizing research object (sliding block etc.) on three slideways using the pressing of baffle plate, structure
It is ingenious, during ensureing that experimental variable is monistic, hence it is evident that reduce cost of manufacture, Electromagnetic Control is not related in experimentation
Etc. process, the danger of experiment is reduced, be adapted to the large-scale promotion in middle school.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model；
Fig. 2 is front view of the present utility model；
Fig. 3 is bottom schematic view of the present utility model；
In figure, 1- retractable support levers, 2- supporting plates, 3- Multi-functional slide ways, 4- baffle plates, 5- points of slideway, 6- space bars, 7-
Bend, 8- adjustment plates, 9- grooves, 10-L type handles.
Specific embodiment：
The utility model is described in detail below in conjunction with the accompanying drawings：
As Figure 1-3, it is a kind of easy friction force demonstration device, including retractable support lever 1, supporting plate 2, multi-functional
Slideway 3 and baffle plate 4,
3 points of the Multi-functional slide way is at least three points slideways 5, and space bar 6 is equipped between each point of slideway 5,
One end horizontal positioned of the Multi-functional slide way 3, and each divides the upper surface of slideway 5 with the paster of different coefficients of friction, with
Aspect student probes into the influence of the slideway to ram speed of different coefficients of friction in experimentation, the Multi-functional slide way 3
The other end bends obliquely, forms bend 7, and the top of the bend 7 connects an adjustment plate 8, during the inside of the adjustment plate 8 is
Sky, its section is identical with the cross sectional shape of Multi-functional slide way 3, and its cross section profile is slightly larger than the section of Multi-functional slide way 3, convenient in peace
Adjustment plate 8 is directly sleeved on the upper end of bend 7, the top of the adjustment plate 6 is provided with a groove 8, the length of the groove 8 during dress
Degree is slightly less than the width of Multi-functional slide way 3, and the baffle plate 4 is located in groove 9, and length is slightly less than groove 9, and extends to space bar
6 outsides, during ensureing to be tested, can simultaneously block the sliding block on three points of slideways 5, the baffle plate 4 and the adjustment plate 8
Spring is provided between bottom, when being tested, baffle plate 4 can be pressed into groove 9, to realize that three sliding blocks are slided with time point
Fall, reduce the External Error of experimentation, it is ensured that the unicity of experimental variable；
The retractable support lever 1 is located at the rear side of the Multi-functional slide way 3, adjacent with the bend 7, described scalable
The top side of support bar 1 is provided with supporting plate 2, and the supporting plate 2 is connected with the described bottom of adjustment plate 8, the supporting plate 2
Center is in same level with the cross facet of the baffle plate 4 and adjustment plate 8.
Preferably, the side of the baffle plate is provided with one by moving part, and described is a L-type handle 10 by moving part, during experiment, together
Baffle plate 4 is pressed into groove 9 by hand pressure L-type handle 10, while can also prevent in 4 bottom spring breaking down of baffle plate, it is impossible to will
Baffle plate 4 is smoothly ejected, so as to influence device to use the generation of this problem.
Preferably, paster appended by three points of slideways 5 is respectively polishing sheet metal, sand paper and nylon cloth.
It is not new to this practicality although above-mentioned be described with reference to accompanying drawing to specific embodiment of the present utility model
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel make by need not paying creative work
Within enclosing.
Claims (3)
1. a kind of easy friction force demonstration device, it is characterized in that, including retractable support lever, supporting plate, Multi-functional slide way and
Baffle plate,
The Multi-functional slide way is divided at least three points slideways, and space bar, many work(are equipped between each point of slideway
One end horizontal positioned of energy slideway, and each divides the upper surface of slideway with the paster of different coefficients of friction, the multifunctional slip
The other end in road bends obliquely, forms bend, and the top of the bend connects an adjustment plate, during the adjustment plate inside is
Sky, its section is identical with Multi-functional slide way cross sectional shape, and its cross section profile is slightly larger than Multi-functional slide way section, the adjustment plate
Top be provided with a groove, the length of the groove is slightly less than the width of Multi-functional slide way, and the baffle plate is located in groove, length
Groove is slightly less than, and extends to space bar outside, spring is provided between the baffle plate and the adjustment plate bottom；
The retractable support lever is located at the rear side of the Multi-functional slide way, the retractable support lever adjacent with the bend
Top side be provided with supporting plate, the supporting plate is connected with described adjustment plate bottom, the center of the supporting plate with it is described
Baffle plate is in same level with the cross facet of slideway.
2. a kind of easy friction force demonstration device as claimed in claim 1, it is characterized in that, the side of the baffle plate is provided with
One presses moving part, and described is a L-type handle by moving part.
3. a kind of easy friction force demonstration device as claimed in claim 1, it is characterized in that, a point paster appended by slideway is respectively
Polishing sheet metal, sand paper and nylon cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291066.1U CN206271275U (en) | 2016-11-29 | 2016-11-29 | A kind of easy friction force demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291066.1U CN206271275U (en) | 2016-11-29 | 2016-11-29 | A kind of easy friction force demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206271275U true CN206271275U (en) | 2017-06-20 |
Family
ID=59042829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291066.1U Expired - Fee Related CN206271275U (en) | 2016-11-29 | 2016-11-29 | A kind of easy friction force demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206271275U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731061A (en) * | 2017-10-17 | 2018-02-23 | 陈玉宝 | A kind of instruments used for education for frictional force experiment |
| CN108364546A (en) * | 2018-01-03 | 2018-08-03 | 佛山杰致信息科技有限公司 | A kind of frictional force experiment teaching instrument |
| CN108766140A (en) * | 2018-08-08 | 2018-11-06 | 钟文信 | A kind of portable physical friction experiment device |
| CN109192013A (en) * | 2018-09-18 | 2019-01-11 | 嘉善县里泽中心学校 | A kind of friction force demonstration teaching aid |
-
2016
- 2016-11-29 CN CN201621291066.1U patent/CN206271275U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731061A (en) * | 2017-10-17 | 2018-02-23 | 陈玉宝 | A kind of instruments used for education for frictional force experiment |
| CN107731061B (en) * | 2017-10-17 | 2020-05-05 | 绍兴君合新材料科技有限公司 | Teaching instrument for friction force experiment |
| CN108364546A (en) * | 2018-01-03 | 2018-08-03 | 佛山杰致信息科技有限公司 | A kind of frictional force experiment teaching instrument |
| CN108766140A (en) * | 2018-08-08 | 2018-11-06 | 钟文信 | A kind of portable physical friction experiment device |
| CN109192013A (en) * | 2018-09-18 | 2019-01-11 | 嘉善县里泽中心学校 | A kind of friction force demonstration teaching aid |
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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: 20170620 Termination date: 20171129 |