CN201029056Y - Multifunctional horizontal-casting and vertical-dropping instrument - Google Patents
Multifunctional horizontal-casting and vertical-dropping instrument Download PDFInfo
- Publication number
- CN201029056Y CN201029056Y CNU2007200314470U CN200720031447U CN201029056Y CN 201029056 Y CN201029056 Y CN 201029056Y CN U2007200314470 U CNU2007200314470 U CN U2007200314470U CN 200720031447 U CN200720031447 U CN 200720031447U CN 201029056 Y CN201029056 Y CN 201029056Y
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- China
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- vertical
- base
- vertical plate
- instrument
- vertical board
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Abstract
The utility model relates to a flatly throwing vertical falling instrument for measuring the time performance of free falling movement and flatly throwing movement in physical teaching, which mainly consists of a base, a vertical board, an object supporting tray and an emitting device. The base and the vertical board are connected through vertical splicing; two stop timing switches are arranged on the base; two return switches are arranged behind the two stop timing switches; the bottom end of the vertical board is provided with two start timing switches; the back face of the vertical board is provided with a ball case; scales are arranged on the vertical board; the object supporting tray takes a concave shape, and the top of the object supporting tray is provided with the emitting device and a ball positioning stage; the emitting device comprises a manual switch, a spring gun and a start timing switch. Compared with the prior art, the utility model has the advantages of flexible and direct teaching experiment appearance, convenient use, simple structure, precise calculating and higher experiment scientificity.
Description
Technical field:
The utility model relates to a kind of physics educational apparatus, and more particularly, the utility model relates to the flat throwing of measuring the movement of falling object and level throw motion tautochronism in a kind of physics teaching and erects instrument.
Background technology:
At present, flat throwing used in physics teaching experiment erects instrument, has some defectives in the teaching demonstration process, and the one, can not guarantee whether two beads on the dwang are in same level height; The 2nd, very fast at the dropping process medium velocity, and do not have object of reference, can't judge whether two balls are in sustained height all the time; The 3rd, can only judge whether by the sound that two balls land to land simultaneously, and bead also can be upspring after landing and with ground collision for the second time takes place, can't distinguish is that two beads successively land the different sounds that produce, still bead for the second time with the sound of collision on the ground generation.
Summary of the invention:
Multi-functional flat throwing of the present utility model erects the deficiency that instrument is to overcome above-mentioned existence, provide a kind of bead that makes to be in same position all the time, and judge directly perceived, see or hear that bead bumps against the physics educational apparatus that the sound send just can judge by naked eyes, make the student can see the tautochronism of the movement of falling object and level throw motion under the sustained height intuitively, visually, increased dirigibility and interest to physics experiment teaching.
The utility model purpose is achieved by following technical proposals:
Multi-functional flat throwing is erected instrument and is mainly contained base, vertical plate, pallet, emitter composition.
Described base is connected by the vertical method of plant propagation with cutting with vertical plate, and four faces of vertical plate are all vertical with base;
Described base is provided with two and stops time switch, stops the time switch back at two and is provided with two reset switches;
Be provided with two initial time switchs at described vertical plate low side;
Be provided with the ball case at the described vertical plate back side, the ball case is that transparent material is made, and can be plastics or glass and other similar products; Described ball case can be airtight fully at vertical direction four sides also can be non-airtight;
Described vertical plate is provided with graduated scale, one side at the chute that is provided with one of graduated scale;
Described pallet is concave shape;
Be provided with emitter and Place platform above the described pallet;
Described emitter comprises hand switch, spring gun, initial time switch.
The utility model advantage compared with prior art is:
1, education experiment image, flexible, directly perceived.
2, easy to use, simple in structure, calculate accurately.
3, can verify the tautochronism of the movement of falling object and level throw motion under the sustained height, make the science of experiment higher and increased dirigibility and interest to teaching.
Description of drawings:
Fig. 1 is that the plane structure chart that falls is erected in multi-functional flat throwing;
Fig. 2 is the explosion views of pallet of the present utility model and emitter.
1 base, 2 timers 3,4 stop time switch 5 timers 6 vertical plates 7 chute 8 pallets, 9 Place platforms (freely falling body ball) 10 Place platforms (level throw motion ball) 11 emitters 12 adjustment knobs 13 timer reset switches 14 timer reset switches 15 ball-filling box 16 spring guns 17 initial time switch 18 hand switches 19 graduated scales among the figure
Concrete embodiment;
The utility model will be further described below in conjunction with accompanying drawing:
In Fig. 1, at first before experiment, check the reset mode (00:00:00) of timer 2 and timer 5 and stop timer whether be in off-state.Secondly, fix the height of pallet 8 by adjustment knobs 12, must pallet and base keeping parallelism when level altitude.Getting two beads then from the bead case is contained in respectively on Place platform 9 and the Place platform 10, tighten emitter 11 and be exactly back-moving spring rifle 16, (right hand all the other except that thumb four refer to upwards hold up gently pallet when doing this operation to press hand switch 18, thumb should be jerked soon and start switch, can avoid instrument impaired like this, can make the timer accurate timing again).Initial time switch 17 has been opened, bead on the Place platform 9 is done the movement of falling object, bead on the Place platform 10 is made level throw motion, timer 2 and timer 5 pick up counting simultaneously, when two beads are fallen termination time switch 3 respectively and are stopped time switch 4, timer 2 and timer 5 quit work, and read the total on timer 2 and the timer 5 respectively, i.e. T
1And T
2, see the height H at pallet place then, utilize formula S=1/2aT
2, be exactly height H at this S, also can try to achieve the value of a.Then, press reset switch 13 and reset switch 14, make timer to reset mode.Equally, open gauge device when stopping again, readjust the height of pallet, repeat above step, can find that each result of experiment is the time T that movement of falling object bead and level throw motion bead fall
1, T
2Be that to equate is T in error range
1=T
2And test the time T of usefulness at every turn
1, T
2... and height H
1, H
2Difference substitution formula S=1/2aT
2In, can obtain a
1, a
2Use averaging method then, can obtain the exact value of a.The object that can verify different quality by this instrument falls to the used time of same surface level from sustained height and equates, also can probe into the influence of air resistance to the level throw motion bead indirectly.
Claims (5)
1. a multi-functional flat throwing is erected instrument and is mainly contained base (1), vertical plate (6), pallet (8), emitter (11) composition, it is characterized in that: described base (1) is connected by the vertical method of plant propagation with cutting with vertical plate (6), and four faces of vertical plate (6) are all vertical with base (1); Described base (1) is provided with two and stops time switch (3,4); Be provided with two initial time switchs (17) at described vertical plate (6) low side; Be provided with ball case (15) at described vertical plate (6) back side; Described pallet (8) is concave shape; Described emitter comprises hand switch (18), spring gun (16), initial time switch (17).
2. multi-functional flat throwing according to claim 1 erects instrument, it is characterized in that: stop time switch (3,4) back at two and be provided with two reset switches (13,14).
3. multi-functional flat throwing according to claim 1 erects instrument, it is characterized in that: described ball case (15) is made for transparent material, can be plastics or glass and other similar products, described ball case (15) can be airtight fully at vertical direction four sides also can be non-airtight;
4. multi-functional flat throwing according to claim 1 erects instrument, it is characterized in that: described vertical plate (6) is provided with graduated scale (19), at graduated scale (19) one side be provided with one chute (7).
5. multi-functional flat throwing according to claim 1 erects instrument, it is characterized in that: be provided with emitter (11) and Place platform (9) above the described pallet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200314470U CN201029056Y (en) | 2007-03-22 | 2007-03-22 | Multifunctional horizontal-casting and vertical-dropping instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200314470U CN201029056Y (en) | 2007-03-22 | 2007-03-22 | Multifunctional horizontal-casting and vertical-dropping instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201029056Y true CN201029056Y (en) | 2008-02-27 |
Family
ID=39133272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200314470U Expired - Fee Related CN201029056Y (en) | 2007-03-22 | 2007-03-22 | Multifunctional horizontal-casting and vertical-dropping instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201029056Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767441A (en) * | 2017-03-10 | 2017-05-31 | 刘庚 | A kind of motion for Machine Design coordinates checking device |
| CN107067902A (en) * | 2017-07-04 | 2017-08-18 | 张蕴喆 | Physics experiments of high school Multipurpose teaching device |
| CN108847093A (en) * | 2018-07-20 | 2018-11-20 | 佛山科枫文化传播有限公司 | A kind of physics teaching inclined throw movements experimental demonstration device |
-
2007
- 2007-03-22 CN CNU2007200314470U patent/CN201029056Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767441A (en) * | 2017-03-10 | 2017-05-31 | 刘庚 | A kind of motion for Machine Design coordinates checking device |
| CN107067902A (en) * | 2017-07-04 | 2017-08-18 | 张蕴喆 | Physics experiments of high school Multipurpose teaching device |
| CN108847093A (en) * | 2018-07-20 | 2018-11-20 | 佛山科枫文化传播有限公司 | A kind of physics teaching inclined throw movements experimental demonstration device |
| CN108847093B (en) * | 2018-07-20 | 2020-11-27 | 佛山科枫文化传播有限公司 | Physical teaching is with oblique throwing motion experiment presentation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 |