CN207867776U - A kind of physics teaching demonstration device - Google Patents
A kind of physics teaching demonstration device Download PDFInfo
- Publication number
- CN207867776U CN207867776U CN201721468463.6U CN201721468463U CN207867776U CN 207867776 U CN207867776 U CN 207867776U CN 201721468463 U CN201721468463 U CN 201721468463U CN 207867776 U CN207867776 U CN 207867776U
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- CN
- China
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- plate
- swivel plate
- demonstration device
- teaching demonstration
- physics teaching
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Abstract
The utility model belongs to teaching equipment field, more particularly to a kind of physics teaching demonstration device, including electronic dynamometer, pedestal and two supporting racks being fixed on pedestal, it is hinged by axle sleeve and main shaft that supporting rack is equipped with main shaft swivel plate, axle sleeve is equipped with telescopic rod, and the telescopic rod of elongation is located in the limit hole of circular arc limiting plate；It is inserted with friction plate in the card slot of the swivel plate, sliding block is equipped with above friction plate, magnetic block is equipped in the square hole of sliding block, sliding block is connect by drawstring with electronic dynamometer, and drawstring passes through the deflecting roller deflecting that is installed on swivel plate；Magnet piece is equipped with below swivel plate；Circular arc limiting plate and axle sleeve are concentric, and the quantity in circular arc limiting plate upper limit hole is eight, including the limit hole that the limit hole of horizontal direction and seven adjacent angles are 10 degree；The left end of swivel plate is equipped with baffle；The material of pedestal, supporting rack and swivel plate is aluminium.The reasonable design, easy operation of the utility model, demonstrating effect is apparent, can improve the quality of teaching.
Description
Technical field
The utility model belongs to teaching equipment field, and in particular to a kind of physics teaching demonstration device.
Background technology
Physics is the natural subject of a research physical phenomenon, in physics teaching, passes through the explanation side of oral account or writing on the blackboard
Formula cannot meet the needs of modernizing teaching, and student cannot veritably see the presentation process of physical phenomenon, particularly with regard to
When mechanics teaching content, in order to allow student to understand and master relevant knowledge faster, need to demonstrate letter by using teaching aid
Single mechanics physical phenomenon allows student intuitively to go observation physical phenomenon in a manner of teaching demonstration.So designing a kind of physics
Teaching demonstration device is very necessary.
Invention content
In place of the utility model makes up and improve above-mentioned the deficiencies in the prior art, mechanics can be demonstrated by apparatus for demonstrating
Phenomenon, provides that a kind of reasonable design, easy to operate, demonstrating effect is apparent, interesting strong and what can be improved the quality of teaching drills
Showing device can be promoted and be used on a large scale in school and educational institution.
The technical solution adopted in the utility model is：A kind of physics teaching demonstration device, including electronic dynamometer, pedestal and
Two supporting racks being fixed on pedestal, supporting rack are equipped with main shaft swivel plate and are hinged by axle sleeve and main shaft, and axle sleeve is equipped with
The telescopic rod of telescopic rod, elongation is located in the limit hole of circular arc limiting plate；It is inserted with friction plate in the card slot of the swivel plate, rubs
It is equipped with sliding block above plate, is equipped with magnetic block in the square hole of sliding block, sliding block is connect by drawstring with electronic dynamometer, and drawstring passes through peace
Loaded on the deflecting roller deflecting on swivel plate；Magnet piece is equipped with below swivel plate.
The circular arc limiting plate and axle sleeve are concentric, and the quantity in circular arc limiting plate upper limit hole is eight, including a water
Square to limit hole and seven adjacent angles be 10 degree limit hole.
The left end of the swivel plate is equipped with baffle.
The material of the pedestal, supporting rack and swivel plate is aluminium.
The circular arc limiting plate is fixed on supporting rack.
The deflecting roller is fixed on swivel plate end by support base.
Rubber sleeve is equipped in the square hole of the sliding block.
The quantity of the magnet piece is four, is located in the groove of placing groove.
The friction plate is Group Design, every group of friction plate for including at least five kinds of different coefficients of friction.
The beneficial effects of the utility model：Reasonable design, easy operation, demonstrating effect is apparent, interesting strong, can improve
Quality of instruction is easy to promote and use on a large scale.Sliding block and friction are demonstrated by replacing the friction plate of different coefficients of friction
The frictional force of plate, and the frictional force of different coefficients of friction is measured by electronic dynamometer, friction plate is adjusted by rotating extensible arm
Angle of inclination, angle adjustment after telescopic rod is elongated after insert in the limit hole of circular arc limiting plate, pass through different coefficients of friction
Friction plate and the angle of inclination of differentiated friction plate carry out demonstration friction.Magnetic block is placed in the square hole of sliding block, according to drilling
Show needs be selectively put into magnet piece in the placing groove below swivel plate, to demonstrate under the magnetic force sliding block not
It is demonstrated with the mechanics of friction coefficient and the friction plate of differing tilt angles.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode：
Referring to Fig.1, a kind of physics teaching demonstration device, including electronic dynamometer 12, pedestal 15 and be fixed on pedestal 15
Two supporting racks 16, supporting rack 16 is equipped with that 17 swivel plate 8 of main shaft is hinged by axle sleeve 2 and main shaft 17, and axle sleeve 2 is equipped with stretches
The telescopic rod 1 of contracting bar 1, elongation is located in the limit hole of circular arc limiting plate 18；Friction plate 7 is inserted in the card slot of the swivel plate 8,
7 top of friction plate is equipped with sliding block 4, and magnetic block 5 is equipped in the square hole of sliding block 4, and sliding block 4 is connected by drawstring 9 and electronic dynamometer 12
It connects, drawstring 9 passes through 11 deflecting of deflecting roller that is installed on swivel plate 8；8 lower section of swivel plate is equipped with magnet piece 13；The circular arc limit
Position plate 18 and axle sleeve 2 are concentric, and the quantity in 18 upper limit hole of circular arc limiting plate is eight, includes the limit hole of a horizontal direction
The limit hole that adjacent angle is 10 degree with seven；The left end of the swivel plate 8 is equipped with baffle 3；The pedestal 15, supporting rack 16 and
The material of swivel plate 8 is aluminium；The circular arc limiting plate 18 is fixed on supporting rack 16；The deflecting roller 11 is solid by support base 10
Due to 8 end of swivel plate；Rubber sleeve 6 is equipped in the square hole of the sliding block 4；The quantity of the magnet piece 13 is four, difference
In the groove of placing groove 14；The friction plate 7 is Group Design, every group of friction for including at least five kinds of different coefficients of friction
Plate 7.
The frictional force of sliding block 4 and friction plate 7 is demonstrated by replacing the friction plate 7 of different coefficients of friction, and passes through electronics
Dynamometer 12 measures the frictional force of different coefficients of friction, and the angle of inclination of friction plate 7, angle tune are adjusted by rotating extensible arm 1
After whole will telescopic rod 1 elongate after insert in the limit hole of circular arc limiting plate 18, by the friction plate 7 of different coefficients of friction and not
Demonstration friction is carried out at angle of inclination with friction plate 7.Magnetic block 5 is placed in the square hole of sliding block 4, and selection is needed according to demonstration
Ground is put into magnet piece 13 in the placing groove 14 below swivel plate 8, to demonstrate under the magnetic force sliding block 4 in differentiated friction
The mechanics of the friction plate 7 of coefficient and differing tilt angles is demonstrated.The reasonable design, easy operation of the utility model, demonstrating effect
Obviously, interesting strong, it can improve the quality of teaching, be easy to promote and use on a large scale.
Claims (9)
1. a kind of physics teaching demonstration device, including electronic dynamometer（12）, pedestal（15）And it is fixed on pedestal（15）On two
A supporting rack（16）, it is characterised in that：Supporting rack（16）It is equipped with main shaft（17）Swivel plate（8）Pass through axle sleeve（2）With main shaft
（17）It is hinged, axle sleeve（2）It is equipped with telescopic rod（1）, the telescopic rod of elongation（1）Positioned at circular arc limiting plate（18）Limit hole in；
The swivel plate（8）Card slot in be inserted with friction plate（7）, friction plate（7）Top is equipped with sliding block（4）, sliding block（4）Square hole in set
There is magnetic block（5）, sliding block（4）Pass through drawstring（9）With electronic dynamometer（12）Connection, drawstring（9）By being installed on swivel plate（8）
On deflecting roller（11）Deflecting；Swivel plate（8）Lower section is equipped with magnet piece（13）.
2. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The circular arc limiting plate（18）With
Axle sleeve（2）With one heart, and circular arc limiting plate（18）The quantity in upper limit hole is eight, includes the limit hole and seven of a horizontal direction
The limit hole that a adjacent angle is 10 degree.
3. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The swivel plate（8）Left end
Equipped with baffle（3）.
4. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The pedestal（15）, supporting rack
（16）And swivel plate（8）Material be aluminium.
5. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The circular arc limiting plate（18）Gu
Due to supporting rack（16）On.
6. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The deflecting roller（11）Pass through branch
Support seat（10）It is fixed on swivel plate（8）End.
7. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The sliding block（4）Square hole in
Equipped with rubber sleeve（6）.
8. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The magnet piece（13）Quantity
It is four, is located at placing groove（14）Groove in.
9. a kind of physics teaching demonstration device according to claim 1, it is characterised in that：The friction plate（7）For in groups
Design, every group of friction plate for including at least five kinds of different coefficients of friction（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721468463.6U CN207867776U (en) | 2017-11-07 | 2017-11-07 | A kind of physics teaching demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721468463.6U CN207867776U (en) | 2017-11-07 | 2017-11-07 | A kind of physics teaching demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867776U true CN207867776U (en) | 2018-09-14 |
Family
ID=63474737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721468463.6U Active CN207867776U (en) | 2017-11-07 | 2017-11-07 | A kind of physics teaching demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207867776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109935141A (en) * | 2019-04-02 | 2019-06-25 | 田家地 | A kind of high school physics friction force demonstration device |
-
2017
- 2017-11-07 CN CN201721468463.6U patent/CN207867776U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109935141A (en) * | 2019-04-02 | 2019-06-25 | 田家地 | A kind of high school physics friction force demonstration device |
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