CN203397561U - Horizontal projectile experiment demonstrating device - Google Patents
Horizontal projectile experiment demonstrating device Download PDFInfo
- Publication number
- CN203397561U CN203397561U CN201320557206.5U CN201320557206U CN203397561U CN 203397561 U CN203397561 U CN 203397561U CN 201320557206 U CN201320557206 U CN 201320557206U CN 203397561 U CN203397561 U CN 203397561U
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- China
- Prior art keywords
- metal ball
- electromagnet
- outlet section
- diameter
- left corner
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Abstract
The utility model relates to a horizontal projectile experiment demonstrating device. A metal ball cabin inside provided with a plurality of metal balls is installed besides each electromagnet. Front-end openings of outlet sections of the metal ball cabins face towards the electromagnets correspondingly. Blocking boards used for blocking the metal balls are inserted in the outlet sections. Openings are arranged in the upper ends of the outlet sections in the rear side of the blocking boards. Auxiliary electromagnets are embedded in the openings. The auxiliary electromagnets and the correspondingly electromagnets act alternately. According to the utility model, the falling and position restriction of the metal balls are performed automatically. An operator only needs to push a linked switch and give a lesson at the same time. The metal balls do not need to be placed manually, so that great convenience is brought.
Description
Technical field
The utility model relates to centripetal force experimental demonstration apparatus field, especially a kind of flat parabolic experimental apparatus for demonstrating.
Background technology
Level throw motion refers to that object dishes out with certain initial velocity along continuous straight runs, its curve movement is a para-curve, it is zero that level throw motion can be considered initial velocity on vertical direction, in the movement of falling object of gravitate and horizontal direction, be not subject to external force, because inertia is done the linear uniform motion that initial velocity is constant.In learning process, for the ease of student, understand above-mentioned concept, each producer develops experiment teaching aid, its structural drawing is as shown in Figure 5: comprise backboard 10 and base 16, in the backboard upper left corner and the lower left corner, one bending track 1 is all installed, the peak in these two track left sides is installed respectively flat electromagnet 2 and the uniform motion electromagnet 12 thrown, one freely falling body electromagnet 11 is installed in the backboard upper right corner, adsorbing metal ball 6 on above-mentioned three electromagnet, then press gauge tap, make three synchronous dead electricity of electromagnet, three Metal Ball motions, by level throw motion, the movement of falling object and linear uniform motion are showed and are illustrated at backboard.
When the said equipment is used; when three Metal Ball drop on the bending track rightmost of below; because mutually clash into; very easily there is the problem that is bound to outside, drops on ground, now need teacher or student that Metal Ball is picked up, be then put back on electromagnet; because teacher student is numerous; and tables, chairs and benches etc. are also more, thus often there will be Metal Ball disorderly to roll everywhere, the situation that impact is attended class.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, automatic placement Metal Ball is provided, has not affected a kind of flat parabolic experimental apparatus for demonstrating of teaching progress.
The technical scheme that the utility model is taked is:
A kind of flat parabolic experimental apparatus for demonstrating, comprise backboard, bending track and electromagnet, a bending track is all installed in the upper left corner and the lower left corner at backboard, an electromagnet is installed respectively at these two bending track peak places, the 3rd electromagnet is installed in the backboard upper right corner, it is characterized in that: the other Metal Ball storehouse that a plurality of Metal Ball of inner placement are installed of electromagnet described in each, this Metal Ball storehouse outlet section front opening phase contraposition towards described electromagnet, described outlet section plug-in mounting one is for the baffle plate of barrier metal ball, an opening is made in the outlet section upper end of surveying after this baffle plate, this opening part setting-in one subsidiary magnet, the described electromagnet alternation of subsidiary magnet and phase contraposition described in each.
And, in the described Metal Ball storehouse outlet section front opening in the upper left corner and the lower left corner and the distance between described bending track inside bottom surface, be greater than the diameter of 1 times of Metal Ball and be less than the diameter of 1.5 times of Metal Ball, in the outlet section front opening Yu Gai place, described Metal Ball storehouse in the upper right corner, state the diameter that distance between the adsorption site of electromagnet is greater than the diameter of 1 times of Metal Ball and is less than 1.5 times of Metal Ball, described in each, the internal diameter of Metal Ball storehouse outlet section is greater than the diameter of described Metal Ball.
And electromagnet is all connected in series power supply by normally closed contact and a master switch of a linked switch described in each, described in each, subsidiary magnet is connected in series power supply by normally opened contact and the described master switch of described linked switch.
Advantage of the present utility model and good effect are:
In the utility model, a Metal Ball storehouse is all fixed on each electromagnet side of installing on backboard, opening part setting-in one subsidiary magnet that each outlet section upper end, Metal Ball storehouse is made, the described electromagnet alternation of subsidiary magnet and phase contraposition described in each, operating personnel press master switch, then open the baffle plate in three Metal Ball storehouses, now electromagnet obtains electric, subsidiary magnet is without electricity, the first Metal Ball falls and is held by electromagnet, operating personnel press linked switch, electromagnet is without electricity, subsidiary magnet obtains electric, now the first Metal Ball motion, second electromagnet held by subsidiary magnet, avoid it to fall, operating personnel unclamp linked switch, electromagnet obtains electric, subsidiary magnet is without electricity, the second Metal Ball falls and is held by electromagnet, constantly repeat and completed the demonstration of level throw motion, in said process, the falling and spacingly all automatically completing of Metal Ball, operating personnel only need to press linked switch, explain course simultaneously, need not place by hand Metal Ball, very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
That the electromagnet in the Tu2Shi Tu1Zhong upper left corner obtains is electric, subsidiary magnet is without electric constitutional diagram;
The electromagnet in the Tu3Shi Tu1Zhong upper left corner obtains electric constitutional diagram without electricity, subsidiary magnet;
Fig. 4 is the circuit controling drawing of Fig. 1;
Fig. 5 is the structural representation of prior art.
Embodiment
Below in conjunction with embodiment, the utility model is further illustrated, following embodiment is illustrative, is not determinate, can not limit protection domain of the present utility model with following embodiment.
A kind of flat parabolic experimental apparatus for demonstrating, as shown in Fig. 1～5, comprise backboard 10, bending track 1 and electromagnet, a bending track is all installed in the upper left corner and the lower left corner at backboard, an electromagnet 2 and 12 are installed respectively by these two bending track peak places, the 3rd electromagnet 11 is installed in the backboard upper right corner, innovation of the present utility model is: described in each, electromagnet bypass is crossed mounting rail 9 an inner Metal Ball storehouse 7 of placing a plurality of Metal Ball 6 is installed, these Metal Ball storehouse outlet section 8 front opening 15 phase contrapositions towards described electromagnet, described outlet section plug-in mounting one is for the baffle plate 4 of barrier metal ball, an opening 5 is made in the outlet section upper end of surveying after this baffle plate, this opening part setting-in one subsidiary magnet 3, the described electromagnet alternation of subsidiary magnet and phase contraposition described in each.
In the present embodiment, in the described Metal Ball storehouse outlet section front opening in the upper left corner and the lower left corner and the distance between described bending track inside bottom surface, be greater than the diameter of 1 times of Metal Ball and be less than the diameter of 1.5 times of Metal Ball, in the outlet section front opening Yu Gai place, described Metal Ball storehouse in the upper right corner, state the diameter that distance between the adsorption site of electromagnet is greater than the diameter of 1 times of Metal Ball and is less than 1.5 times of Metal Ball, described in each, the internal diameter of Metal Ball storehouse outlet section is greater than the diameter of described Metal Ball.
When the utility model is used:
Described in each, electromagnet is all connected in series power supply by normally closed contact K21 and a master switch K1 of a linked switch, and described in each, subsidiary magnet is connected in series power supply by normally opened contact K22 and the described master switch K1 of described linked switch.
Due to the Metal Ball in three Metal Ball storehouses, to fall process all identical, and the electromagnet with the upper left corner that represents in Fig. 2,3 describes below.
1. operating personnel join Metal Ball in Metal Ball storehouse, open master switch K1.
2. the baffle plate in three Metal Ball storehouses is opened, the first Metal Ball 14 falls, and because electromagnet 2 has electricity, so the first Metal Ball is held by electromagnet, the second Metal Ball 13 spills from outlet section front opening place, Metal Ball storehouse, then abuts against in the first Metal Ball.
3. operating personnel press the normally opened contact K22 of linked switch, this normally opened contact disconnects the normally closed contact K21 of linked switch, now the first Metal Ball loses the attraction of electromagnet, start free movement, subsidiary magnet obtains electric simultaneously, because the internal diameter of Metal Ball storehouse outlet section is greater than the diameter of Metal Ball, so the second Metal Ball is held to side by subsidiary magnet, can not impact the motion of the first Metal Ball.
4. operating personnel unclamp normally opened contact, this normally opened contact K22 disconnection that automatically resets, makes the normally closed contact K21 closure that automatically resets, and now the second Metal Ball falls by electromagnet and adsorbs, the 3rd Metal Ball spills from outlet section front opening place, Metal Ball storehouse, then abuts against in the second Metal Ball.
5. repeating step 3 and 4, completes the demonstration of level throw motion.
In the utility model, the falling and spacingly all automatically completing of Metal Ball, operating personnel only need to press linked switch, explain course simultaneously, need not place by hand Metal Ball, very convenient.
Claims (3)
1. a flat parabolic experimental apparatus for demonstrating, comprise backboard, bending track and electromagnet, a bending track is all installed in the upper left corner and the lower left corner at backboard, an electromagnet is installed respectively at these two bending track peak places, the 3rd electromagnet is installed in the backboard upper right corner, it is characterized in that: the other Metal Ball storehouse that a plurality of Metal Ball of inner placement are installed of electromagnet described in each, this Metal Ball storehouse outlet section front opening phase contraposition towards described electromagnet, described outlet section plug-in mounting one is for the baffle plate of barrier metal ball, an opening is made in the outlet section upper end of surveying after this baffle plate, this opening part setting-in one subsidiary magnet, the described electromagnet alternation of subsidiary magnet and phase contraposition described in each.
2. a kind of flat parabolic experimental apparatus for demonstrating according to claim 1, it is characterized in that: in the described Metal Ball storehouse outlet section front opening in the upper left corner and the lower left corner and the distance between described bending track inside bottom surface, be greater than the diameter of 1 times of Metal Ball and be less than the diameter of 1.5 times of Metal Ball, in the outlet section front opening Yu Gai place, described Metal Ball storehouse in the upper right corner, state the diameter that distance between the adsorption site of electromagnet is greater than the diameter of 1 times of Metal Ball and is less than 1.5 times of Metal Ball, described in each, the internal diameter of Metal Ball storehouse outlet section is greater than the diameter of described Metal Ball.
3. a kind of flat parabolic experimental apparatus for demonstrating according to claim 1 and 2, it is characterized in that: described in each, electromagnet is all connected in series power supply by normally closed contact and a master switch of a linked switch, and described in each, subsidiary magnet is connected in series power supply by normally opened contact and the described master switch of described linked switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557206.5U CN203397561U (en) | 2013-09-09 | 2013-09-09 | Horizontal projectile experiment demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557206.5U CN203397561U (en) | 2013-09-09 | 2013-09-09 | Horizontal projectile experiment demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203397561U true CN203397561U (en) | 2014-01-15 |
Family
ID=49909079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557206.5U Expired - Fee Related CN203397561U (en) | 2013-09-09 | 2013-09-09 | Horizontal projectile experiment demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203397561U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903495A (en) * | 2014-04-28 | 2014-07-02 | 蚌埠市创新科普产品工程研究中心有限公司 | Small ball track demonstrating machine |
| CN103943002A (en) * | 2014-04-02 | 2014-07-23 | 西华师范大学 | Horizontal cast movement demonstration instrument |
| CN106297505A (en) * | 2015-05-27 | 2017-01-04 | 张阁 | The two ball motion conditions that successively fall analyze demonstrating experiment device |
-
2013
- 2013-09-09 CN CN201320557206.5U patent/CN203397561U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943002A (en) * | 2014-04-02 | 2014-07-23 | 西华师范大学 | Horizontal cast movement demonstration instrument |
| CN103943002B (en) * | 2014-04-02 | 2016-05-11 | 西华师范大学 | Horizontal cast movement demonstration instrument |
| CN103903495A (en) * | 2014-04-28 | 2014-07-02 | 蚌埠市创新科普产品工程研究中心有限公司 | Small ball track demonstrating machine |
| CN106297505A (en) * | 2015-05-27 | 2017-01-04 | 张阁 | The two ball motion conditions that successively fall analyze demonstrating experiment device |
| CN106297505B (en) * | 2015-05-27 | 2018-12-11 | 张阁 | The two ball motion conditions that successively fall analyze demonstrating experiment device |
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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: 20140115 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |