CN206757975U - A kind of senior middle school physics teaching device - Google Patents
A kind of senior middle school physics teaching device Download PDFInfo
- Publication number
- CN206757975U CN206757975U CN201720466726.3U CN201720466726U CN206757975U CN 206757975 U CN206757975 U CN 206757975U CN 201720466726 U CN201720466726 U CN 201720466726U CN 206757975 U CN206757975 U CN 206757975U
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- CN
- China
- Prior art keywords
- fixedly connected
- teaching device
- middle school
- senior middle
- physics teaching
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Abstract
The utility model discloses a kind of senior middle school physics teaching device, including base, the upper surface both sides of the base are fixedly connected with limited location bar, the upper end of the gag lever post is fixedly connected with supporting plate, the upper surface of the supporting plate is fixedly connected with motor by support, the port position axis connection of the motor has threaded rod, the supporting plate has been internally embedded axis hole, the surface of the inner side pivot bush unit threaded rod of the axis hole, the surface of the gag lever post slidably connects stop collar, the surface of the stop collar is fixedly connected with lifter plate, nut is embedded with the inside of the lifter plate, the inside thread connection screw thread bar of the nut, the lower end of the threaded rod is fixedly connected with anti-disk stripping through nut.The senior middle school physics teaching device, the process of experiment can further be refined so that the data of measurement are more accurate, while reduce the manual trouble of teacher, improve give lessons efficiency and the learning efficiency of student of teacher.
Description
Technical field
Physics teaching technical field is the utility model is related to, specially a kind of senior middle school physics teaching device.
Background technology
Because physics subject is comparatively more complicated, so Physical Education Teacher often uses experiment during teaching
Carry out simulating actual conditions, buoyancy experiment is core curriculum for the student being just beginning school, and it is therefore necessary to pass through buoyancy experiment
Analogue means strengthens teaching efficiency.
Existing buoyancy experiment equipment is by a relatively simple, and teacher's majority also obtains a series of experiment by hand dipping
Data, although teaching resource can be saved, at school give lessons in terms of efficiency and in terms of the learning efficiency of student all by
Substantially reduce.
Utility model content
The purpose of this utility model is to provide a kind of senior middle school physics teaching device, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical scheme：A kind of senior middle school physics teaching device, including bottom
Seat, the upper surface both sides of the base are fixedly connected with limited location bar, and the upper end of the gag lever post is fixedly connected with supporting plate, institute
The upper surface for stating supporting plate is fixedly connected with motor by support, and the port position axis connection of the motor has threaded rod, described
Supporting plate has been internally embedded axis hole, and the surface of the inner side pivot bush unit threaded rod of the axis hole, the surface of the gag lever post is slided
Dynamic to be connected with stop collar, the surface of the stop collar is fixedly connected with lifter plate, nut, institute is embedded with the inside of the lifter plate
The inside thread connection screw thread bar of nut is stated, the lower end of the threaded rod is fixedly connected with anti-disk stripping, the lifting through nut
The lower surface of plate is connected to round bar by axle bed fixed cover, and the surface slip cap of the round bar is connected to axle sleeve, the surface of the axle sleeve
It is fixedly connected with spring dynamometer, the lower end of the spring dynamometer is fixedly connected with cotton rope, among the upper surface of the base
Position is fixedly connected with locating slot, and water vat is socketed with the inside of the locating slot, and the lower end of the base is fixedly connected with damping
Set, the internal slide of shock-absorbing sleeve are socketed with decoupling rod, and the lower end of decoupling rod is fixedly connected with vibration damper plate, the surface socket of decoupling rod
There is spring, the upper end of spring is fixedly connected with the port surface of shock-absorbing sleeve, and the lower end of spring is fixedly connected with the upper surface of vibration damper plate.
Preferably, the surface of the gag lever post is provided with scale.
Preferably, the upper surface of the supporting plate is fixedly connected with forward-reverse switch, and forward-reverse switch passes through circuit connected in series
Connect motor, and forward-reverse switch with interior circuit by being connected in series.
Preferably, the quantity of the cotton rope is four.
Preferably, the position of the water vat and the position of cotton rope are mutually corresponding, and water vat is transparent toughened glass material system
Into.
Preferably, it is 1 gram of pure water per cubic centimeter that the inside of the water vat, which is injected with density,.
Compared with prior art, the beneficial effects of the utility model are：The senior middle school physics teaching device, can be by experiment
Process further refines so that the data of measurement are more accurate, while reduce the manual trouble of teacher, improve teacher's
Efficiency of giving lessons and the learning efficiency of student；Spring dynamometer can be improved by the lifting of lifter plate so that spring dynamometry
Device can accurately measure the initial mass of each bead, prevent because bead dropped when hanging the bead of different densities
Contacted with other structures greatly and cause measurement initial mass to be affected, anti-disk stripping can play the effect of anticreep, prevent from lifting
There is the phenomenon slided, the inner sleeve water receiving cylinder of locating slot so that water vat is after the completion of experiment, Neng Goubian during decline in plate
Cleared up in dismounting, while also can prevent water vat from can not dismantle and cause water vat situation about damaging occur when carrying, overall structure
Multigroup experiment can be disposably completed, greatly reduces the time that teacher is spent in experiment.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is axis hole position view of the present utility model；
Fig. 3 is nut location schematic diagram of the present utility model.
In figure：1 base, 2 locating slots, 3 water vats, 4 gag lever posts, 5 scales, 6 stop collars, 7 supporting plates, 8 forward-reverse switches, 9
Motor, 10 threaded rods, 11 round bars, 12 axle sleeves, 13 anti-disk strippings, 14 spring dynamometers, 15 cotton ropes, 16 lifter plates, 17 axis holes, 18 spiral shells
Mother, 19 decoupling rods, 20 springs, 21 shock-absorbing sleeves, 22 vibration damper plates.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of senior middle school physics teaching device, including base
1, the upper surface both sides of base 1 are fixedly connected with limited location bar 4, and the surface of gag lever post 4 is provided with scale 5, can aid in carrying out height
The reading of degree, the contrast of a data is carried out, the upper end of gag lever post 4 is fixedly connected with supporting plate 7, and the upper surface of supporting plate 7 leads to
Cross support and be fixedly connected with motor 9, the model 4RK25GN-C of motor 9, low-power, service life length, the upper table of supporting plate 7
Face is fixedly connected with forward-reverse switch 8, the model HY2-8 of forward-reverse switch 8, the regulation of rotating can be carried out to motor 9,
Forward-reverse switch 8 by circuit connected in series connect motor 9, and forward-reverse switch 8 with interior circuit by being connected in series, motor 9
Port position axis connection has threaded rod 10, and supporting plate 7 has been internally embedded axis hole 17, the inner side pivot bush unit threaded rod of axis hole 17
10 surface, the surface of gag lever post 4 slidably connect stop collar 6, and the surface of stop collar 6 is fixedly connected with lifter plate 16, can
Carry out oscilaltion with each bead, while while pellet quality measure, will not it is larger due to bead tenesmus amplitude and
Cause cotton rope 15 that spring can not be pulled to survey sharp weapon 14 and reach maximum, the inner side of lifter plate 16 is embedded with nut 18, nut 18
Inside thread connection screw thread bar 10, the lower end of threaded rod 10 are fixedly connected with anti-disk stripping 13 through nut 18, under lifter plate 16
Surface is connected to round bar 11 by axle bed fixed cover, and the surface slip cap of round bar 11 is connected to axle sleeve 12, and the surface of axle sleeve 12, which is fixed, to be connected
Spring dynamometer 14 is connected to, the lower end of spring dynamometer 14 is fixedly connected with cotton rope 15, and the quantity of cotton rope 15 is four, and lower end
Being fixedly connected sequentially from left to right has solid plastic ball, solid wooden shot, hollow stainless steel ball and solid stainless steel ball, can carry out
The contrast of experiment, facilitates the observation of student, and the upper surface centre position of base 1 is fixedly connected with locating slot 2, locating slot 2 it is interior
Side is socketed with water vat 3, ensures the stability that water vat 3 is placed, the position of water vat 3 and the position of cotton rope 15 are mutually corresponding, and water vat 3
It is made up of transparent toughened glass material, also being capable of Protection while ensureing that each bead can normally enter 3 inside of water vat
Security, it is 1 gram of pure water per cubic centimeter that the inside of water vat 3, which is injected with density, ensure test solution density accuracy,
The lower end of base 1 is fixedly connected with shock-absorbing sleeve 21, and the internal slide of shock-absorbing sleeve 21 is socketed with decoupling rod 19, the lower end of decoupling rod 19
Vibration damper plate 22 is fixedly connected with, the surface of decoupling rod 19 is socketed with spring 20, and the upper end of spring 20 is fixedly connected with shock-absorbing sleeve 21
Port surface, the lower end of spring 20 are fixedly connected with the upper surface of vibration damper plate 22, can be placed in overall structure and play damping
Effect.
The utility model is in the specific implementation：When needing to carry out buoyancy experiment, overall structure is moved to specified location,
Shock-absorbing sleeve 21 slides up and down on the surface of decoupling rod 19, is resetted by the compression of spring 20, buffering can be played to overall structure
The effect of protection, switches on power, and starts motor 9 using the rotating forward switch of forward-reverse switch 8, and motor 9 drives threaded rod 10 to rotate,
Threaded rod 10 rotates the activity of lifter plate 16 for causing inner side to be embedded with nut 18, and lifter plate 16 coordinates stop collar 6 in gag lever post 4 again
Slide on surface so that lifter plate 16 itself can straight line move upwards, while by the raising of the position of spring dynamometer 14, Ran Houjiao
Teacher ties up to the cotton rope 15 for being connected with solid plastic ball, solid wooden shot, hollow stainless steel ball and solid stainless steel ball correspondingly respectively
Spring dynamometer 14 lower end so that each bead free-falling and can ensure that extension spring dynamometer 14 reaches most
Big value, the qualitative data of corresponding spring dynamometer 14 is then read, then be multiplied with the density of corresponding bead, then can measure bead
The density of itself, when needing to carry out the contrast of buoyancy experiment, start motor 9 using the reversal switch of forward-reverse switch 8 so that
Lifter plate 16 can constantly decline with each bead, while it is 1 gram of pure water per cubic centimeter to inject density into water vat 3,
After each bead contacts with pure water, due to the difference of autologous density, it may appear that the different situations such as float, suspend and sink to the bottom,
Student can intuitively pass through physical knowledge of learning by experimentation.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of senior middle school physics teaching device, including base（1）, it is characterised in that：The base（1）Upper surface both sides it is solid
Surely it is connected with gag lever post（4）, the gag lever post（4）Upper end be fixedly connected with supporting plate（7）, the supporting plate（7）Upper table
Face is fixedly connected with motor by support（9）, the motor（9）Port position axis connection have threaded rod（10）, the support
Plate（7）Be internally embedded axis hole（17）, the axis hole（17）Inner side pivot bush unit threaded rod（10）Surface, it is described spacing
Bar（4）Surface slidably connect stop collar（6）, the stop collar（6）Surface be fixedly connected with lifter plate（16）, the liter
Plate drops（16）Inner side be embedded with nut（18）, the nut（18）Inside thread connection screw thread bar（10）, the threaded rod
（10）Lower end pass through nut（18）It is fixedly connected with anti-disk stripping（13）, the lifter plate（16）Lower surface fixed by axle bed
It is socketed with round bar（11）, the round bar（11）Surface slip cap be connected to axle sleeve（12）, the axle sleeve（12）Surface fix connect
It is connected to spring dynamometer（14）, the spring dynamometer（14）Lower end be fixedly connected with cotton rope（15）, the base（1）It is upper
Surface centre position is fixedly connected with locating slot（2）, the locating slot（2）Inner side be socketed with water vat（3）, the base（1）
Lower end be fixedly connected with shock-absorbing sleeve（21）, shock-absorbing sleeve（21）Internal slide be socketed with decoupling rod（19）, decoupling rod（19）'s
Lower end is fixedly connected with vibration damper plate（22）, decoupling rod（19）Surface be socketed with spring（20）, spring（20）Upper end fix connect
Connect shock-absorbing sleeve（21）Port surface, spring（20）Lower end be fixedly connected with vibration damper plate（22）Upper surface.
A kind of 2. senior middle school physics teaching device according to claim 1, it is characterised in that：The gag lever post（4）Surface
Provided with scale（5）.
A kind of 3. senior middle school physics teaching device according to claim 1, it is characterised in that：The supporting plate（7）Upper table
Face is fixedly connected with forward-reverse switch（8）, forward-reverse switch（8）Motor is connected by circuit connected in series（9）, and forward-reverse switch
（8）With interior circuit by being connected in series.
A kind of 4. senior middle school physics teaching device according to claim 1, it is characterised in that：The cotton rope（15）Quantity be
Four.
A kind of 5. senior middle school physics teaching device according to claim 1 or 4, it is characterised in that：The water vat（3）Position
With cotton rope（15）Position it is mutually corresponding, and water vat（3）It is made up of transparent toughened glass material.
A kind of 6. senior middle school physics teaching device according to claim 1, it is characterised in that：The water vat（3）Inside note
It is 1 gram of pure water per cubic centimeter to enter to have density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466726.3U CN206757975U (en) | 2017-04-28 | 2017-04-28 | A kind of senior middle school physics teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466726.3U CN206757975U (en) | 2017-04-28 | 2017-04-28 | A kind of senior middle school physics teaching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206757975U true CN206757975U (en) | 2017-12-15 |
Family
ID=60615361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720466726.3U Expired - Fee Related CN206757975U (en) | 2017-04-28 | 2017-04-28 | A kind of senior middle school physics teaching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206757975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712491A (en) * | 2019-01-11 | 2019-05-03 | 俞苏珉 | A kind of physics teaching dedicated unit |
-
2017
- 2017-04-28 CN CN201720466726.3U patent/CN206757975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712491A (en) * | 2019-01-11 | 2019-05-03 | 俞苏珉 | A kind of physics teaching dedicated unit |
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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: 20171215 Termination date: 20180428 |