CN205247722U - Inertia demonstration teaching aid - Google Patents
Inertia demonstration teaching aid Download PDFInfo
- Publication number
- CN205247722U CN205247722U CN201521111990.2U CN201521111990U CN205247722U CN 205247722 U CN205247722 U CN 205247722U CN 201521111990 U CN201521111990 U CN 201521111990U CN 205247722 U CN205247722 U CN 205247722U
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- CN
- China
- Prior art keywords
- dolly
- slope
- teaching aid
- demonstration teaching
- box
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses an inertia demonstration teaching aid, including box and dolly, the inside slope that is equipped with of box, be equipped with an electro -magnet on the slope, be equipped with the battery below the slope, the bottom plate of box is equipped with the friction surface, be equipped with two switches on the front panel of box, one is normally open switch, and one is the normally closed switch, still is equipped with the draw -in groove simultaneously, the box top surface is removable cover, and above -mentioned rotatory knot and the handle of being equipped with, and the rotation is detained and the draw -in groove cooperates for fixed apron, the handle makes things convenient for mr to carry, being equipped with two bracing pieces on the dolly, being connected with a cantilever between two bracing pieces, be connected with a bobble through the cotton cord in the middle of the cantilever, the dolly bottom is equipped with an iron sheet for adsorb on the electro -magnet aslope, the utility model relates to a rationally, simple structure controls the removal of dolly through the electro -magnet, has avoided the influence of operating personnel to the experiment, has reduced experimental error, improves mr's the teaching efficiency, also conveniently carries simultaneously.
Description
Technical field
The utility model relates to a kind of teaching aids of physics demonstrating, specifically a kind of inertia demonstration teaching aid.
Background technology
The inertia of the object of middle school student to physics teaching does not have deep understanding conventionally, needs demonstration dress more intuitivelyPut to deepen the understanding to this concept, the demonstration teaching aid having at present hangs a bead exactly on dolly, soAfter will slide from slope, owing to can making bead swing in travelling car, the effect of impact experiment.
Utility model content
The purpose of this utility model is to provide a kind of inertia demonstration teaching aid, proposes to solve in above-mentioned background technologyProblem.
For achieving the above object, the utility model provides following technical scheme:
A kind of inertia demonstration teaching aid, comprises casing and dolly; Described box house is provided with slope; On described slopeBe provided with an electromagnet, be provided with battery below slope; The base plate of described casing is provided with rubbing surface; Described casingFront panel be provided with two switches, one is normal open switch, one is normally closed switch, is also provided with card simultaneouslyGroove; Described box top is removable cover, and is provided with turn buckle and handle above; Described dolly is provided with twoStrut, is connected with a cantilever between two support bars, in the middle of cantilever, be connected with a bead by cotton cord, and establish dolly bottomThere is an iron plate.
As further program of the utility model: the coefficient of friction of described ramped surfaces is zero.
As further program of the utility model: described normally closed switch and normal open switch are connected in series.
As further program of the utility model: described bead is made up of stainless steel material.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is reasonable in design, simple in structure, controls the movement of dolly by electromagnet, has avoided behaviourDo the impact of personnel on experiment, reduced experimental error, improve teacher's efficiency of teaching, be also convenient for carrying simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of inertia demonstration teaching aid.
Fig. 2 is the structural representation of dolly in inertia demonstration teaching aid.
Fig. 3 is the structural representation of casing in inertia demonstration teaching aid.
Fig. 4 is the structural representation of box bottom in inertia demonstration teaching aid.
In figure: 1-casing, 2-normal open switch, 3-normally closed switch, 4-battery, 5-slope, 6-electromagnet,7-dolly, 8-cantilever, 9-bead, 10-iron plate, 11-support bar, 12-handle, 13-draw-in groove, 14-rotationButton, 15-rubbing surface.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Refer to Fig. 1-4, a kind of inertia demonstration teaching aid, comprises casing 1 and dolly 7; Described casing 1 insideBe provided with slope 5; Described slope 5 is provided with an electromagnet 6, and slope 5 is provided with battery 4 below; DescribedThe base plate of casing 1 is provided with rubbing surface 15; The front panel of described casing 1 is provided with two switches, and one is2, one of normal open switch are normally closed switch 3, are also provided with draw-in groove 13 simultaneously; Described casing 1 end face is removable coverPlate, and be provided with turn buckle 14 and handle 12 above, turn buckle 14 and draw-in groove 13 coordinate, for securing cover plate,Handle 12 facilitates teacher to carry; Described dolly 7 is provided with two 11 of support bar 11, two support bars and is connected withOne cantilever 8, is connected with a bead 9 by cotton cord in the middle of cantilever 8, and dolly 7 bottoms are provided with an iron plate 10, usesOn the electromagnet 6 being adsorbed on slope 5.
Operation principle of the present utility model is:
First closed normal open switch 2, now electromagnet 6 energisings have magnetic, and dolly 7 is adsorbed on to electromagnetOn 6, due to the effect of magnetic force, dolly 7 can automatic sliding, and when pressing normally closed switch 3, electromagnet 6 is disconnectedElectricity, loses magnetism, and now dolly 7 has not had constraint, and under the effect of gravity, dolly 7 accelerates to glide, butBead 9, due to inertia, can keep original state, and therefore bead 9 is to right avertence, when dolly 7 slides into base plateOn rubbing surface 15 time, now dolly 7 does retarded motion, because the bead 9 of inertia still keeps original speedDegree, thus cause bead 9 to left avertence.
Above the preferred embodiments of this patent is explained in detail, but this patent is not limited to above-mentioned enforcementMode, in the ken that one skilled in the relevant art possesses, can also not depart from this patent ancestorUnder the prerequisite of purport, make a variety of changes.
Claims (4)
1. an inertia demonstration teaching aid, comprises casing and dolly; It is characterized in that, described box house is provided with slope; InstituteState slope and be provided with an electromagnet, be provided with battery below slope; The base plate of described casing is provided with rubbing surface; Described casingFront panel be provided with two switches, one is normal open switch, one is normally closed switch, is also provided with draw-in groove simultaneously; DescribedBox top is removable cover, and is provided with turn buckle and handle above; Described dolly is provided with two support bars, between two support barsBe connected with a cantilever, in the middle of cantilever, be connected with a bead by cotton cord, dolly bottom is provided with an iron plate.
2. inertia demonstration teaching aid according to claim 1, is characterized in that, the coefficient of friction of described ramped surfaces isZero.
3. inertia demonstration teaching aid according to claim 1, is characterized in that, described normally closed switch and normal open switch stringConnection connects.
4. inertia demonstration teaching aid according to claim 1, is characterized in that, described bead is made up of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111990.2U CN205247722U (en) | 2015-12-29 | 2015-12-29 | Inertia demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111990.2U CN205247722U (en) | 2015-12-29 | 2015-12-29 | Inertia demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205247722U true CN205247722U (en) | 2016-05-18 |
Family
ID=55946804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521111990.2U Expired - Fee Related CN205247722U (en) | 2015-12-29 | 2015-12-29 | Inertia demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205247722U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297519A (en) * | 2016-08-24 | 2017-01-04 | 合肥凌翔信息科技有限公司 | A kind of inclined-plane education experiment dolly remote control unit |
| CN107731061A (en) * | 2017-10-17 | 2018-02-23 | 陈玉宝 | A kind of instruments used for education for frictional force experiment |
| CN108550307A (en) * | 2018-07-02 | 2018-09-18 | 广东电网有限责任公司 | Mobile side dumper |
-
2015
- 2015-12-29 CN CN201521111990.2U patent/CN205247722U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297519A (en) * | 2016-08-24 | 2017-01-04 | 合肥凌翔信息科技有限公司 | A kind of inclined-plane education experiment dolly remote control unit |
| CN106297519B (en) * | 2016-08-24 | 2019-02-22 | 合肥凌翔信息科技有限公司 | A kind of inclined-plane teaching experiment trolley remote control device |
| 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 |
| CN108550307A (en) * | 2018-07-02 | 2018-09-18 | 广东电网有限责任公司 | Mobile side dumper |
| CN108550307B (en) * | 2018-07-02 | 2023-06-23 | 广东电网有限责任公司 | Mobile side-tipping vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |