CN206489798U

CN206489798U - A kind of projectile motion apparatus for demonstrating

Info

Publication number: CN206489798U
Application number: CN201720137082.3U
Authority: CN
Inventors: 姬庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-16
Filing date: 2017-02-16
Publication date: 2017-09-12
Anticipated expiration: 2027-02-16

Abstract

The utility model discloses a kind of projectile motion apparatus for demonstrating, including background board, ejector, collecting tank；The left side of background board leading flank, which is provided with the chute of genesis analysis, chute, installs sliding block, the leading flank activity riveting ejector of sliding block, and marble are placed in ejector；Setting angle chi between the sliding block and ejector；The bottom of background board leading flank is fixedly connected with collecting tank；The leading flank of the background board is provided with the sensing hole being equally spaced, correspondence position inside background board in each sensing hole installs one group of sensing lamp, the sensing lamp is made up of the LED and microwave remote sensor connected, the battery of background board trailing flank, storage battery connection hand switch are electrically connected after all sensing lamp is in parallel.The utility model can adjust dynamics, height and the angle during marble transmitting, meet the requirement of experiment of different parameters；The movement locus of marble is recorded by lamp source, it is easy to use.

Description

A kind of projectile motion apparatus for demonstrating

Technical field

The utility model is related to teaching aid field, more particularly to a kind of projectile motion apparatus for demonstrating.

Background technology

Often it is related to projectile motion or parabola in physics and mathematics teaching process, parabolic is transported in order to deepen student Dynamic understanding, teacher would generally use the bead provided with emitter to carry out experimental demonstration before background board, due to bead motion Comparatively fast, and the movement locus of bead can not be recorded, demonstrating effect is general；And occurred in that in existing patented technology be able to record that it is small The parabolic demonstration teaching aid of sphere path curve, its principle records magnetic ball movement locus using magnetic ball to iron powder adsorption mostly, what it was present Problem is that iron powder adsorption is difficult to clear up, reset on magnetic ball, and the time of experimental demonstration is longer.

Utility model content

In order to overcome the technical deficiency of existing parabolic demonstration teaching aid, the utility model provides a kind of projectile motion demonstration dress Put, dynamics, height and the angle during marble transmitting can be adjusted, the requirement of experiment of different parameters is met；Bullet is recorded by lamp source The movement locus of ball, it is easy to use.

The utility model solves the technical scheme that its technical problem used：A kind of projectile motion apparatus for demonstrating, including Background board, ejector, collecting tank；The left side of background board leading flank, which is provided with the chute of genesis analysis, chute, installs sliding block, sliding block Leading flank activity riveting ejector, marble are placed in ejector；Setting angle chi between the sliding block and ejector；Background board The bottom surface that the bottom of leading flank is fixedly connected in collecting tank, collecting tank is tilted down from left to right, and the right-hand member of collecting tank is provided with gear Plate；The left side chute of background board leading flank is provided with the distance scale of genesis analysis, and background board leading flank bottom is provided with horizontal point The distance scale of cloth；The leading flank of the background board is provided with inside some sensing holes being equally spaced, background board in each sensing The correspondence position in hole all installs one group of sensing lamp, and the sensing lamp is made up of the LED and microwave remote sensor connected, all sensing The battery of background board trailing flank, storage battery connection hand switch are electrically connected after lamp is in parallel.

Further, the length of the collecting tank is more than the length of background board.

Further, in the collecting tank bottom surface and baffle plate left surface is designed with cushion blocking.

Further, the leading flank of the background board is light-passing board.

Further, the ejector includes sleeve, ejection plate, connecting rod, spring；Connecting rod is located at one end connection in sleeve Ejection plate, the part that connecting rod is located at outside sleeve is provided with elastic force scale, and spring is inserted in the part that connecting rod is located in sleeve.

The beneficial effects of the utility model are that the projectile motion apparatus for demonstrating, ejector can be adjusted when marble are launched Dynamics, height and angle, meet the requirement of experiment of different parameters；Corresponding sensing lamp is triggered after marble ejection to light, and passes through sense The lamp source of lamp is answered to record the movement locus of marble, it is easy to use, the track of multigroup projectile motion can be contrasted, student's reason is helped Solution.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of ejector.

Fig. 3 is the structural representation of background board trailing flank.

Fig. 4 is the structural representation inside background board.

Fig. 5 is circuit theory diagrams of the present utility model.

Indicated in figure, 1. background boards, 2. ejectors, 3. collecting tanks, 4. chutes, 5. sliding blocks, 6. marble, 7. bevel protractors, 8. Baffle plate, 9. sensing holes, 10. sensing lamps, 11.LED lamps, 12. microwave remote sensors, 13. batteries, 14. hand switches, 15. sleeves, 16. ejection plate, 17. connecting rods, 18. springs.

Embodiment

Reference picture 1-4, a kind of projectile motion apparatus for demonstrating, including background board 1, ejector 2, collecting tank 3；Before background board 1 The left side of side, which is provided with the chute 4 of genesis analysis, chute 4, installs sliding block 5, and the leading flank of sliding block 5 is flexibly connected by rivet Marble 6 are placed in ejector 2, ejector 2；Bevel protractor 7 is fixedly connected between the sliding block 5 and ejector 2；The front side of background board 1 Bottom surface in the bottom connection collecting tank 3 in face, collecting tank 3 is tilted down from left to right, and the right-hand member of collecting tank 3 is provided with baffle plate 8；The back of the body The left side chute 4 of the leading flank of scape plate 1 is provided with the distance scale of genesis analysis, and the leading flank bottom of background board 1 is provided with cross direction profiles Distance scale；The leading flank of the background board 1 is provided with inside some sensing holes 9 being equally spaced, background board 1 in each sensing The correspondence position of hole 9 all installs one group of sensing lamp 10 by adhesive, and every group of sensing lamp 10 is by the LED 11 connected and one Microwave remote sensor 12 is constituted, and the battery 13 of the trailing flank of background board 1 is all electrically connected after the sensing parallel connection of lamp 10, and battery 13 is electrically connected Connect hand switch 14.

Further, the length of the collecting tank 3 is more than the length of background board 1, marble 6 is rolled to background board 1 Right side, deviate from the sensitive surface of sensing lamp 10, and hand triggers other sensing lamps 9 and lighted and shadow when preventing from taking ball in collecting tank 3 Ring recording track.

Further, in the collecting tank 3 bottom surface and the left surface of baffle plate 8 is designed with cushion blocking, advantageously reduces marble 6 The noise that touching collecting tank 3, baffle plate 8 are sent.

Further, the leading flank of the background board 1 is light-passing board, facilitates look at the lamp source of sensing lamp 10.

Further, the ejector 2 includes sleeve 15, ejection plate 16, connecting rod 17, spring 18；Connecting rod 17 is located at sleeve One end connection ejection plate 16 in 15, the part that connecting rod 17 is located at outside sleeve 15 is provided with elastic force scale, and connecting rod 17 is located at sleeve 15 It is inserted in spring 18 in interior part；Pull connecting rod 17, connecting rod 17 spring 18 effect under by ejection plate 16 by marble 6 by sleeve 15 Interior ejection.

Operation principle of the present utility model is to close hand switch 14, and marble 6 are ejected by ejector 2；Ejector 2 passes through Sliding block 5 is moved on chute 4, by rivet rotational angle, so as to adjust the height and angle when marble 6 are launched；Marble 6 are launched After when sequentially passing through multiple sensing holes 9, the microwave reflection that marble 6 send microwave remote sensor 12, microwave remote sensor 12 is received instead The microwave that is emitted back towards simultaneously is analyzed and processed, and makes the connected electrified light emitting of LED 11, so as to record the parabolic track of marble 6；This Utility model can repeatedly be demonstrated on the basis of once demonstrating, convenient contrast different tracks；Hand switch can also be disconnected Re-closed after 14, all open circuits of LED 11 is demonstrated again after extinguishing.

Claims

1. a kind of projectile motion apparatus for demonstrating, including background board（1）, ejector（2）, collecting tank（3）；Characterized in that, background Plate（1）The left side of leading flank is provided with the chute of genesis analysis（4）, chute（4）Interior installation sliding block（5）, sliding block（5）Leading flank live Dynamic riveting ejector（2）, ejector（2）Interior placement marble（6）；The sliding block（5）With ejector（2）Between setting angle chi （7）；Background board（1）The bottom of leading flank is fixedly connected with collecting tank（3）, collecting tank（3）Interior bottom surface is tilted down from left to right, Collecting tank（3）Right-hand member be provided with baffle plate（8）；Background board（1）The left side chute of leading flank is provided with the distance scale of genesis analysis, Background board（1）Leading flank bottom is provided with the distance scale of cross direction profiles；The background board（1）Leading flank be provided with and be equally spaced Some sensing holes（9）, background board（1）Inside is in each sensing hole（9）Correspondence position one group of sensing lamp is all installed（10）, it is described Sense lamp（10）By the LED connected（11）And microwave remote sensor（12）Constitute, all sensing lamp（10）The back of the body is electrically connected after parallel connection Scape plate（1）The battery of trailing flank（13）, battery（13）Electrically connect hand switch（14）.

2. projectile motion apparatus for demonstrating according to claim 1, it is characterised in that the collecting tank（3）Length be more than Background board（1）Length.

3. projectile motion apparatus for demonstrating according to claim 1, it is characterised in that the collecting tank（3）Interior bottom surface and Baffle plate（8）Left surface is designed with cushion blocking.

4. projectile motion apparatus for demonstrating according to claim 1, it is characterised in that the background board（1）Leading flank be Light-passing board.

5. projectile motion apparatus for demonstrating according to claim 1, it is characterised in that the ejector（2）Including sleeve （15）, ejection plate（16）, connecting rod（17）, spring（18）；Connecting rod（17）Positioned at sleeve（15）Interior one end connection ejection plate（16）, Connecting rod（17）Positioned at sleeve（15）Outer part is provided with elastic force scale, connecting rod（17）Positioned at sleeve（15）It is inserted in spring in interior part （18）.