CN207134021U - A kind of physics teaching friction force demonstration device - Google Patents
A kind of physics teaching friction force demonstration device Download PDFInfo
- Publication number
- CN207134021U CN207134021U CN201720734389.1U CN201720734389U CN207134021U CN 207134021 U CN207134021 U CN 207134021U CN 201720734389 U CN201720734389 U CN 201720734389U CN 207134021 U CN207134021 U CN 207134021U
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- CN
- China
- Prior art keywords
- desktop
- bar
- nylon
- rotating shaft
- friction force
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Abstract
The utility model discloses a kind of physics teaching friction force demonstration device,Including nylon rope retainer plate,Nylon in lightweight rope,Desktop,Fixed pulley,Shaft fixing block,Rotating shaft,Wooden unit is provided with the upper surface of the desktop,And it is provided with shaft fixing block on the lower surface of desktop,One end of the desktop is provided with fixed pulley,One end of the wooden unit is provided with nylon rope retainer plate,And the other end of wooden unit is provided with paper slip,One end of the nylon rope retainer plate is provided with nylon in lightweight rope,The utility model is scientific and reasonable for structure,It is safe and convenient to use,Rotating shaft is set,Bolt fixing hole,Universal self-locking wheel,Sliding bar and scale plate,Rotating shaft can play rotating action in the other end rise of desktop,Reduce the abrasion of support feet,Scale plate is provided with sliding bar,Elevated distance can accurately be known,And then it is easier to calculate the numerical value of frictional force,Universal self-locking wheel can facilitate the movement of the device when in use.
Description
Technical field
Friction force demonstration engineering device technique field is the utility model is related to, specially a kind of physics teaching is filled with friction force demonstration
Put.
Background technology
Frictional force is a noun of classical mechanics, refers to that two objects contacted with each other are elastic, when they will occur
Or when having trend generation relative motion, a kind of power for hindering relative motion will be produced on the contact surface, this power, which is just called, rubs
Wipe when power object moves in liquids and gases also by frictional force, also passed through in daily life as this word by means of analogy frictional force
Often it is used to the strength that description hinders progress.
But friction force demonstration device in the market is not only complicated, and function is single, be not provided with rotating shaft,
Bolt fixing hole, Universal self-locking wheel, sliding bar and scale plate, it is impossible to facilitate the movement of the friction force demonstration device, while also not
Elevated distance can accurately be known.
Utility model content
The utility model provides a kind of physics teaching friction force demonstration device, can effectively solve in above-mentioned background technology
What is proposed is not provided with rotating shaft, bolt fixing hole, Universal self-locking wheel, sliding bar and scale plate, it is impossible to facilitates the friction force demonstration
The movement of device, at the same can not accurately know it is elevated apart from the problem of.
To achieve the above object, the utility model provides following technical scheme：A kind of physics teaching is filled with friction force demonstration
Put, including nylon rope retainer plate, nylon in lightweight rope, desktop, fixed pulley, shaft fixing block, rotating shaft, iron block, support feet, bolt are solid
Determine hole, support bar, Universal self-locking wheel, caging bolt, fix bar, scale plate, sliding bar, dotted timer, paper slip, wooden unit, company
Fishplate bar and fixing bolt, wooden unit is provided with the upper surface of the desktop, and shaft fixing block is provided with the lower surface of desktop,
One end of the desktop is provided with fixed pulley, and one end of the wooden unit is provided with nylon rope retainer plate, and the other end of wooden unit is set
Paper slip is equipped with, one end of the nylon rope retainer plate is provided with nylon in lightweight rope, and one end of the nylon in lightweight rope is provided with iron
Block, the outside of the paper slip are provided with dotted timer, and one end of the shaft fixing block is provided with rotating shaft, the rotating shaft it is outer
Portion is enclosed with support bar, and one end of the support bar is provided with support feet, is embedded on the preceding surface of the support feet and is provided with spiral shell
Bolt fixing hole, one end opening position that the desktop side is arranged close to paper slip are provided with sliding bar, the preceding surface of the sliding bar
On be provided with scale plate, one end of the scale plate is provided with fix bar, and the side insertion of the fix bar sets limited location spiral shell
Bolt, and connecting plate is provided with the preceding surface of fix bar, one end insertion of the connecting plate is provided with fixing bolt, and connecting plate
Side be provided with Universal self-locking wheel.
Preferably, the fix bar is fixedly connected with connecting plate by fixing bolt.
Preferably, the desktop is rotatablely connected with rotating shaft by shaft fixing block.
Preferably, the Universal self-locking wheel is provided with four altogether.
Preferably, the fix bar is fixedly connected with sliding bar by caging bolt.
Compared with prior art, the beneficial effects of the utility model：The utility model is scientific and reasonable for structure, side safe to use
Just, rotating shaft, bolt fixing hole, Universal self-locking wheel, sliding bar and scale plate are set, and rotating shaft can be in the other end rise of desktop
Play rotating action, reduce the abrasion of support feet, scale plate is provided with sliding bar, can accurately know elevated distance, enter
And be easier to calculate the numerical value of frictional force, Universal self-locking wheel can facilitate the movement of the device when in use, when the device is not required to
When moving, Universal self-locking wheel can be packed up, solve and be not provided with rotating shaft, bolt fixing hole, Universal self-locking wheel, sliding bar
And scale plate, it is impossible to facilitate the movement of the friction force demonstration device, while can not accurately know it is elevated apart from the problem of.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.
In the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model connecting plate；
Fig. 3 is the structural representation of the utility model wooden unit；
Label in figure：1st, nylon rope retainer plate；2nd, nylon in lightweight rope；3rd, desktop；4th, fixed pulley；5th, shaft fixing block；6、
Rotating shaft；7th, iron block；8th, support feet；9th, bolt fixing hole；10th, support bar；11st, Universal self-locking wheel；12nd, caging bolt；13rd, it is fixed
Bar；14th, scale plate；15th, sliding bar；16th, dotted timer；17th, paper slip；18th, wooden unit；19th, connecting plate；20th, fixing bolt.
Embodiment
Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.
Embodiment：As Figure 1-3, the utility model provides a kind of technical scheme, and a kind of physics teaching is drilled with frictional force
Showing device, including nylon rope retainer plate 1, nylon in lightweight rope 2, desktop 3, fixed pulley 4, shaft fixing block 5, rotating shaft 6, iron block 7, branch
Spike 8, bolt fixing hole 9, support bar 10, Universal self-locking wheel 11, caging bolt 12, fix bar 13, scale plate 14, sliding bar
15th, dotted timer 16, paper slip 17, wooden unit 18, connecting plate 19 and fixing bolt 20, wooden unit is provided with the upper surface of desktop 3
18, and shaft fixing block 5 is provided with the lower surface of desktop 3, one end of desktop 3 is provided with fixed pulley 4, and one end of wooden unit 18 is set
Nylon rope retainer plate 1 is equipped with, and the other end of wooden unit 18 is provided with paper slip 17, one end of nylon rope retainer plate 1 is provided with lightweight
Nylon rope 2, one end of nylon in lightweight rope 2 are provided with iron block 7, and the outside of paper slip 17 is provided with dotted timer 16, and rotating shaft is fixed
One end of seat 5 is provided with rotating shaft 6, and the outer wrap of rotating shaft 6 has support bar 10, and one end of support bar 10 is provided with support feet 8, branch
Embedded on the preceding surface of spike 8 to be provided with bolt fixing hole 9, one end opening position that the side of desktop 3 is arranged close to paper slip 17 is set
There is sliding bar 15, scale plate 14 is provided with the preceding surface of sliding bar 15, one end of scale plate 14 is provided with fix bar 13, fixed
The side insertion of bar 13 is provided with caging bolt 12, and connecting plate 19 is provided with the preceding surface of fix bar 13, connecting plate 19
One end insertion is provided with fixing bolt 20, and the side of connecting plate 19 is provided with Universal self-locking wheel 11.
In order that Universal self-locking wheel 11 can be fixed in fix bar 13, in the present embodiment, it is preferred that fix bar 13 is with connecting
Fishplate bar 19 is fixedly connected by fixing bolt 20.
In order that one end of desktop 3 can be rotated, in the present embodiment, it is preferred that desktop 3 is fixed with rotating shaft 6 by rotating shaft
Seat 5 is rotatablely connected.
In order that the friction force demonstration device is easy to remove, in the present embodiment, it is preferred that Universal self-locking wheel 11 is provided with altogether
Four.
In order that sliding bar 15 can be fixed after adjustment, in the present embodiment, it is preferred that fix bar 13 and sliding bar 15
It is fixedly connected by caging bolt 12.
Operation principle and process for using of the present utility model：The physics teaching sets rotating shaft 6, spiral shell with friction force demonstration device
Bolt fixing hole 9, Universal self-locking wheel 11, sliding bar 15 and scale plate 14, rotating shaft 6 can desktop the other end rise when from rotate
Effect, reduces the abrasion of support feet 8, scale plate 14 is provided with sliding bar 15, can accurately know elevated distance, and then
The numerical value of frictional force is easily calculated, Universal self-locking wheel 11 can facilitate the movement of the device when in use, when the device is not required to
When moving, Universal self-locking wheel 11 can be packed up, iron block 7 pulls wooden unit 18 to slide on the table, when sliding into certain distance,
Wooden unit 18 stops, and after wooden unit 18 stops, the numerical value of frictional force can be calculated according to the ink dot on the paper slip 17 of the one end of wooden unit 18, when
When needing to survey stiction, sliding bar 15 is risen, and wooden unit 18 is placed on inclined-plane, when hypotenuse is increased to constant slope, wooden unit
Just move, the component of gravity now is stiction, and the physics teaching is solved with friction force demonstration device and do not set
Put rotating shaft 6, bolt fixing hole 9, Universal self-locking wheel 11, sliding bar 15 and scale plate 14, it is impossible to facilitate the friction force demonstration device
Movement, while can not accurately know it is elevated apart from the problem of.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this reality
With new, although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it can still be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is entered
Row equivalent substitution.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc., all should
Within the scope of protection of the utility model.
Claims (5)
1. a kind of physics teaching friction force demonstration device, including nylon rope retainer plate（1）, nylon in lightweight rope（2）, desktop（3）、
Fixed pulley（4）, shaft fixing block（5）, rotating shaft（6）, iron block（7）, support feet（8）, bolt fixing hole（9）, support bar（10）, ten thousand
To from lockwheel（11）, caging bolt（12）, fix bar（13）, scale plate（14）, sliding bar（15）, dotted timer（16）, paper
Bar（17）, wooden unit（18）, connecting plate（19）And fixing bolt（20）, it is characterised in that：The desktop（3）Upper surface on set
There is wooden unit（18）, and desktop（3）Lower surface on be provided with shaft fixing block（5）, the desktop（3）One end be provided with and determine cunning
Wheel（4）, the wooden unit（18）One end be provided with nylon rope retainer plate（1）, and wooden unit（18）The other end be provided with paper slip
（17）, the nylon rope retainer plate（1）One end be provided with nylon in lightweight rope（2）, the nylon in lightweight rope（2）One end set
There is iron block（7）, the paper slip（17）Outside be provided with dotted timer（16）, the shaft fixing block（5）One end set
There is rotating shaft（6）, the rotating shaft（6）Outer wrap have support bar（10）, the support bar（10）One end be provided with support feet
（8）, the support feet（8）Preceding surface on insertion be provided with bolt fixing hole（9）, the desktop（3）Side is arranged close to paper
Bar（17）One end opening position be provided with sliding bar（15）, the sliding bar（15）Preceding surface on be provided with scale plate（14）,
The scale plate（14）One end be provided with fix bar（13）, the fix bar（13）Side insertion be provided with caging bolt
（12）, and fix bar（13）Preceding surface on be provided with connecting plate（19）, the connecting plate（19）One end insertion be provided with it is solid
Determine bolt（20）, and connecting plate（19）Side be provided with Universal self-locking wheel（11）.
A kind of 2. physics teaching friction force demonstration device according to claim 1, it is characterised in that：The fix bar
（13）With connecting plate（19）Pass through fixing bolt（20）It is fixedly connected.
A kind of 3. physics teaching friction force demonstration device according to claim 1, it is characterised in that：The desktop（3）
With rotating shaft（6）Pass through shaft fixing block（5）Rotation connection.
A kind of 4. physics teaching friction force demonstration device according to claim 1, it is characterised in that：The Universal self-locking
Wheel（11）Four are provided with altogether.
A kind of 5. physics teaching friction force demonstration device according to claim 1, it is characterised in that：The fix bar
（13）With sliding bar（15）Pass through caging bolt（12）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734389.1U CN207134021U (en) | 2017-06-22 | 2017-06-22 | A kind of physics teaching friction force demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734389.1U CN207134021U (en) | 2017-06-22 | 2017-06-22 | A kind of physics teaching friction force demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207134021U true CN207134021U (en) | 2018-03-23 |
Family
ID=61631983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720734389.1U Expired - Fee Related CN207134021U (en) | 2017-06-22 | 2017-06-22 | A kind of physics teaching friction force demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207134021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147505A (en) * | 2018-10-12 | 2019-01-04 | 合肥磐石自动化科技有限公司 | A kind of mechanics apparatus for demonstrating |
| CN109741665A (en) * | 2019-03-02 | 2019-05-10 | 马心乔 | A kind of physics experiment teaching friction testing system |
| CN110533997A (en) * | 2019-09-11 | 2019-12-03 | 罗森聪 | Integrated demonstration experimental device for the experiment of physical friction power |
-
2017
- 2017-06-22 CN CN201720734389.1U patent/CN207134021U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147505A (en) * | 2018-10-12 | 2019-01-04 | 合肥磐石自动化科技有限公司 | A kind of mechanics apparatus for demonstrating |
| CN109741665A (en) * | 2019-03-02 | 2019-05-10 | 马心乔 | A kind of physics experiment teaching friction testing system |
| CN110533997A (en) * | 2019-09-11 | 2019-12-03 | 罗森聪 | Integrated demonstration experimental device for the experiment of physical friction power |
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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: 20180323 Termination date: 20190622 |