CN106997708A - A kind of apparatus for demonstrating horizontal throw motion of automation - Google Patents
A kind of apparatus for demonstrating horizontal throw motion of automation Download PDFInfo
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- CN106997708A CN106997708A CN201710210567.5A CN201710210567A CN106997708A CN 106997708 A CN106997708 A CN 106997708A CN 201710210567 A CN201710210567 A CN 201710210567A CN 106997708 A CN106997708 A CN 106997708A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
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Abstract
The invention belongs to teaching aid technical field, it is related to a kind of apparatus for demonstrating horizontal throw motion of automation.There is provided a kind of apparatus for demonstrating horizontal throw motion of automation, including frame, also include the lifting device being fixed in the frame, it is flat to throw track and bead recovery skewed slot, the flat throwing track is used to provide the initial velocity that bead does level throw motion, described bead, which reclaims skewed slot, to be used to collect the bead for completing level throw motion, described lifting device is used to the bead that bead is reclaimed in skewed slot being promoted to flat throw in track, bead is set to complete flat throwing process again, the bead that flat throwing track is dished out is reclaimed after skewed slot collection by bead, flat throwing track is promoted to by lifting device again, constantly repeat, the both hands of experimenter can be liberated, the bead of dishing out repeatedly automated by the structure design of automation is tested.Make experiment that there is intuitive and continuity, deepen student's impression.
Description
Technical field
The invention belongs to teaching aid technical field, it is related to a kind of apparatus for demonstrating horizontal throw motion of automation.
Background technology
In physics facility, especially in dynamics experimental device, to be often related to the motion rule of demonstrating level throw motion
Rule.It is known that there is a kind of special circumstances in projectile motion, initial velocity direction when object is spilled in the horizontal direction, i.e.,
Object has horizontal initial rate, and the curvilinear motion only made under gravity is called level throw motion.In analysis level throw motion
When level throw motion can be decomposed into two componental movements of horizontal direction and vertical direction by we.The motion of horizontal direction is at the uniform velocity
Linear motion, vertical direction is the movement of falling object.In order to reach studying rule of horizontal projectile movement, the flat throwing of description in physics teaching
Movement locus of object, checking level throw motion are the conjunctions of horizontal forward linear uniform motion and the movement of falling object vertically downward
Into the purpose for moving and being verified with flat parabolic experimental device conservation of mechanical energy, existing many experimental provisions, but respectively there is quality.
Traditional horizontal cast movement demonstration instrument, operation is more complicated, cumbersome, does relatively time-consuming when demonstration is probed on classroom,
There is the utility model patent of many apparatus for demonstrating, such as Publication No. CN203232611U using experiment of horizontal projectile motion in reality
A kind of conservation of mechanical energy flat throw sports test device, including upper cover plate are disclosed, the upper cover plate lower rear is provided with rear fixed block,
Upper cover plate rear end is provided with calibration block, can be slided in upper cover plate upper horizontal, horizontal ruler is attached to U type rail superior portions, upper cover plate
Lower front is provided with preceding fixed block, and the preceding upper lateral part of fixed block two, which is provided with end slot interpolation before adjusting knob, upper cover plate, has flat throw to sense
Device, the perpendicular fix bar end is stretched into before upper cover plate lower front in fixed block, and scale back is provided with photoelectricity door fix bar, institute
State wing bolt to stretch into scale plate, photoelectricity door fix bar end is provided with L type firm bankings, the scale plate sidepiece camber line
Edge is connected with arc orbit fixed seat.
Although above-mentioned experimental provision relative can be improved, yield, quality are high, precision is high, improve operating efficiency, save
Energy consumption, process are simple, simple operation the advantages of, but operating process is still complicated, it is necessary to which bead of repeatedly dishing out is, it is necessary to constantly
Bead is placed manually on flat polishing apparatus, required experimental data is just can obtain after multiplicating, experimental implementation process is not in addition
With intuitive and continuity.
Further, since limited by teaching condition, the rule of horizontal projectile movement experimental method in middle school physical experiment according to
Old not to be avoided that the drawbacks of repeatedly discharging bead, students are constantly carried out when this kind of experimental provision is operated due to needing
Dish out the operation of bead, step is complicated, it is difficult to concentrate one's energy preferably observation and analysis experimental phenomena, domestic existing middle school's thing
Manage that many experimental rigs in level throw motion are all different degrees of to have certain defect, without it is a kind of can be by the machine of automation
Tool structure replaces the simple flat parabolic experimental device repeated.Therefore, above method can not all make the flat throwing of student's visual understanding
The movement characteristic of motion, impressionable quarter of the demonstration instrument to student.
The content of the invention
The technical problem to be solved in the present invention is that the drawbacks described above for prior art can be by certainly there is provided one kind
The mechanical structure of dynamicization replaces the simple flat parabolic experimental device repeated, experiment is had intuitive and continuity, deepens
Student's impression.
The technical solution adopted by the present invention is there is provided a kind of apparatus for demonstrating horizontal throw motion of automation, including frame,
The lifting device, flat throwing track and bead for also including being fixed in the frame reclaim skewed slot, and the flat throwing track is used to provide
Bead does the initial velocity of level throw motion, and described bead, which reclaims skewed slot, to be used to collect the bead for completing level throw motion, and described carries
Rising device is used to the bead that bead is reclaimed in skewed slot being promoted in flat throwing track, bead is completed flat throwing process again, wherein,
The lifting device is included described in the annular rack being vertically arranged and the annular rack meshed gears, driving
The buncher of gear and the roller being connected with the gear, described annular rack are annular rack, and the roller is set
In the outer rim of annular rack, described annular rack is clipped between described gear and roller, and described roller turns around axle I
Dynamic, axle I one end is connected with electromagnet, and the electromagnet includes iron core, winding and dc source, one of described dc source
One end connection of electrode and winding, another electrode of the dc source is connected by conducting element I with roller, described
The other end of winding is connected by conducting element II with gear, and described gear, roller and annular rack is conductor, described
Connector is insulator, and described electromagnet passes through power supply, winding, gear, roller and the annular being clipped between gear and roller
Rack constitutes path, and the tip portion of described annular rack is coated with insulating barrier, when the gear and roller are located at annular tooth
During the top of bar, described electromagnet is open circuit,
Described flat throwing track includes being connected with each other tilting section and horizontal segment, and the entrance of described tilting section, which is located at, works as roller
The underface of electromagnet during topmost position in annular rack,
Described bead reclaims the lower section that skewed slot is located between flat short-selling, and the bottom of the bead recovery skewed slot, which is located at, works as roller
The underface of electromagnet during bottom most position in annular rack.
In above-mentioned technical scheme, the bead that flat throwing track is dished out is reclaimed after skewed slot collection by bead, then passes through lifting
Device is promoted to flat throwing track, constantly repeats, can liberate the both hands of experimenter, tests the bead progress of dishing out repeatedly automated
Experiment.Specific principle is, when gear and roller are located at the bottom of annular rack, electromagnet passes through power supply, winding, tooth
Wheel, roller and the annular rack composition path being clipped between gear and roller, electromagnet have magnetic, can hold bead,
And be transported up, when gear and roller are located at the top of annular rack, because the order of annular rack is coated with insulating barrier, rolling
It is breakpoint between wheel and gear, electromagnet can not form path, and magnetic disappears, bead falls throws track into flat.
Further, the bead for level throw motion is iron ball or steel ball.The magnetization property of iron ball or steel ball is strong, Ke Yigeng
Good absorption is on electromagnet.
Further, the described gear rotates around axle II, and described gear and roller are by being arranged on annular tooth
The connection sheet connection of bar side, described connection sheet one end is socketed on the axle I, and the other end of the connection sheet is socketed in institute
State on axle II.Connection sheet can cause gear and roller formation integrative-structure, be synchronized with the movement around annular rack.
Further, described flat throwing track and bead reclaim skewed slot and are in same plane.
Further, the frame includes bottom plate, top plate, left riser, right riser and back vertical plate, and described annular rack is consolidated
It is scheduled on left riser, described bead reclaims skewed slot and is fixed on right riser and bottom plate, and coordinate is provided with described back vertical plate
Paper.Graph paper can conveniently visually observe the flat throwing track of bead, and the coordinate that can also be shot as camera in photograph image is joined
According to.
Further, the porch of described flat throwing track is arranged above tubaeform catching mouth.Tubaeform interface
It can prevent electromagnet from being thrown flat above track after demagnetization, because inertia can not accurately fall into flat throwing track in bead drop event
It is interior.
Further, the apparatus for demonstrating horizontal throw motion of above-mentioned automation also includes stroboscopic camera, and described stroboscopic camera is used
The horizontal projectile motion trajectory of bead during flat throw is shot.
Further, it is to be slidably connected between described electromagnet and axle I；Between described conducting element I and roller, institute
It is to be slidably connected between the conducting element II and gear that state, described conducting element I and conducting element II is wire.In place
Prevented during shifting because rotary motion causes the mutual winding or interference of each structure.
Further, the outer rim of described annular rack is formed with guide rail, described roller and is provided with annular groove, institute
The guide rail stated matches with annular groove.It is preferred that, described guide rail and groove is V-shaped.
Using above-mentioned technical proposal, including following advantageous effects：The bead that flat throwing track is dished out is reclaimed by bead
After skewed slot is collected, then by lifting device be promoted to it is flat throw track, constantly repeat, the both hands of experimenter can be liberated, by from
What the structure design of dynamicization was repeatedly automated dished out, and bead is tested.Make experiment that there is intuitive and continuity, deepen student
Impression.
Brief description of the drawings
Fig. 1 is the structural representation for the apparatus for demonstrating horizontal throw motion that the present invention is automated；
Fig. 2 is the front view of lifting device in the present invention；
Fig. 3 is the left view of lifting device in the present invention；
Fig. 4 is roller and a kind of schematic diagram of connected mode of annular rack in the present invention；
In figure,
1st, frame；101st, bottom plate；102nd, top plate；103rd, left riser；104th, right riser；105th, back vertical plate；2nd, lifting device；
201st, annular rack；2011st, guide rail；202nd, gear；203rd, buncher；204th, roller；2041st, annular groove；205th, axle I；
206th, electromagnet；207th, conducting element I；208th, conducting element II；209th, insulating barrier；210th, axle II；211st, connection sheet；3rd, put down and throw
Track；4th, bead reclaims skewed slot；5th, bead.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention
A part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, the scope of protection of the invention is belonged to.
In the present invention, term " on ", " under ", "left", "right", "front", "rear", " top ", " bottom ", " interior ", " outer ",
" in ", " vertical ", " level ", " transverse direction ", the orientation of the instruction such as " longitudinal direction " or position relationship be based on orientation shown in the drawings or
Position relationship.These terms are not intended to limit indicated dress primarily to preferably describe the present invention and embodiment
Put, element or part there must be particular orientation, or be constructed and operated with particular orientation.
Also, above-mentioned part term is in addition to it can be used to indicate that orientation or position relationship, it is also possible to for representing it
His implication, such as term " on " also be likely used for representing certain relations of dependence or annexation in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in the present invention can be understood as the case may be.
In addition, term " installation ", " setting ", " being provided with ", " connection ", " connected " " socket " should be interpreted broadly.For example, can
To be to be fixedly connected, it is detachably connected, or monolithic construction；Can mechanically connect, or electrical connection；Can be joined directly together,
Either it is indirectly connected to by intermediary, or is connection internal between two devices, element or parts.For
For those of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Unless otherwise indicated, the implication of " multiple " is two or more.
The present invention is described in further detail below by specific embodiment and with reference to accompanying drawing.Fig. 1~Fig. 4 is provided
The embodiment of the present invention.
As shown in figure 1, the invention provides a kind of apparatus for demonstrating horizontal throw motion of automation, including frame 1, in addition to it is solid
Lifting device 2, flat throwing track 3 and the bead being scheduled in the frame 1 reclaim skewed slot 4, and the flat throwing track 3 is used to provide bead
5 do the initial velocity of level throw motion, and described bead, which reclaims skewed slot 4, to be used to collect the bead 5 for completing level throw motion, described lifting
Device 2 is used to the bead 5 that bead is reclaimed in skewed slot 4 being promoted in flat throwing track 3, bead 5 is completed flat throwing process again.
As shown in Figures 2 and 3, the lifting device 2 includes the annular rack 201 being vertically arranged and the annular rack
201 meshed gears 202, the buncher 203 of the driving gear 202 and the roller 204 being connected with the gear 202, institute
The annular rack 201 stated is annular rack 201, i.e., the tooth position of described annular rack 201 is in the inner edge of annular rack 201, institute
The outer rim that roller 204 is arranged on annular rack 201 is stated, described annular rack 201 is clipped in described gear 202 and roller 204
Between, described roller 204 is rotated around axle I205, under the driving of buncher 203, buncher 203, the and of gear 202
Roller 204 can be moved along annular rack 201, and now outer rim of the roller 204 along annular rack 201 is rolled.Axle I205 mono-
End is connected with electromagnet 206, and the electromagnet 206 includes iron core, winding and dc source, an electricity of described dc source
Pole and one end of winding are connected, and another electrode of the dc source is connected by conducting element I207 with roller 204, described
The other end of winding be connected by conducting element II208 with gear 202, described gear 202, roller 204 and annular rack
201 be conductor, and described connector is insulator, and described electromagnet 206 passes through power supply, winding, gear 202, roller 204
And the annular rack 201 being clipped between gear 202 and roller 204 constitutes path, the tip portion of described annular rack 201 is sprayed
Insulating barrier 209 is scribbled, when the gear 202 and roller 204 are located at the top of annular rack 201, described electromagnet 206 is
Open circuit,
It should be noted that the material that insulating barrier is used is applied to prior art, roller and tooth can be only realized
Insulate the purpose of connection between wheel, certainly also can using annular rack tip portion is made using insulating materials,
Alternatively scheme.
Described flat throwing track 3 includes being connected with each other tilting section and horizontal segment, and the entrance of described tilting section is located at when rolling
Wheel 204 be in annular rack 201 topmost position when electromagnet 206 underface, i.e., when roller 204 moves to annular tooth
During the position of the top of bar 201, the extreme higher position of electromagnet 206 now also in movement travel, electromagnet 206 now is proper
It is located at the surface (as shown in Figure 1) of tilting section entrance well, now bead 5, which drops, can fall into flat throwing track 3 just.
Described bead reclaims the lower section that skewed slot 4 is located between flat short-selling, and the bottom that the bead reclaims skewed slot 4 is located at when rolling
Wheel 204 be in annular rack 201 bottom most position when electromagnet 206 underface, i.e., when roller 204 moves to annular tooth
During the position of the lowermost end of bar 201, the extreme lower position of electromagnet 206 now also in movement travel, electromagnet 206 now is proper
Well positioned at the surface (as shown in Figure 1) of the bottom of the accumulator tank of bead 5, now electromagnet 206 can be picked up just.
In the course of the work, the bead 5 that flat throwing track 3 is dished out reclaims skewed slot 4 by bead and collected above-mentioned embodiment
Afterwards, then by lifting device 2 flat throwing track 3 is promoted to, constantly repeats, the both hands of experimenter can be liberated, experiment is repeatedly automatic
The bead 5 of dishing out changed is tested.Specific principle is, when gear 202 and roller 204 are located at the bottom of annular rack 201
When, electromagnet 206 passes through power supply, winding, gear 202, roller 204 and the annular tooth being clipped between gear 202 and roller 204
Bar 201 constitutes path, and electromagnet 206 has magnetic, can hold bead 5, and is transported up, when gear 202 and roller
204 be located at annular rack 201 top when, because the order of annular rack 201 is coated with insulating barrier 209, roller 204 and gear
It is breakpoint between 202, electromagnet 206 can not form path, and magnetic disappears, bead 5, which falls to entering to put down, throws track 3.
Specifically, the bead 5 for level throw motion is iron ball or steel ball.
On the basis of above-mentioned embodiment, the described gear 202 rotates around axle II210, described gear
202 and roller 204 connected by being arranged on the connection sheet 211 of the side of annular rack 201, the described one end of connection sheet 211 socket
On the axle I205, the other end of the connection sheet 211 is socketed on the axle II210.Connection sheet 211 can cause tooth
Wheel 202 and the formation integrative-structure of roller 204, are synchronized with the movement around annular rack 201.
More specifically, described flat throwing track 3 and bead reclaim skewed slot 4 and are in same plane.
As shown in figure 1, the frame 1 includes bottom plate 101, top plate 102, left riser, right riser and back vertical plate, described ring
Shape rack 201 is fixed on left riser, and described bead reclaims skewed slot 4 and is fixed on right riser and bottom plate 101, it is described after
Graph paper is provided with riser.Graph paper can conveniently visually observe the flat throwing track of bead 5, can also shoot and shine as camera
Coordinate reference in picture.
In order to prevent electromagnet 206 after the flat throwing top demagnetization of track 3, because inertia can not be accurate in the drop event of bead 5
Really fall into flat throwing track 3, the porch of flat throwing track 3 that can be described is arranged above tubaeform catching mouth (in figure not
Show).
In order to preferably combine prior art means so that experimental implementation more facilitation, the flat throwing of above-mentioned automation
Motion demonstrating device can also include stroboscopic camera, and described stroboscopic camera is used to shooting the flat throwing fortune of bead 5 during flat throw
Dynamic rail mark.
Certainly, during displacement in order to prevent because rotary motion causes the mutual winding or interference of each structure, institute
It is preferably to be slidably connected between the electromagnet 206 and axle I205 stated；Same described conducting element I207 and roller 204 it
Between, be both preferably and be slidably connected between described conducting element II208 and gear 202, described conducting element I207 and conduction
Element II208 is wire.
It is provided with as shown in figure 4, the outer rim of described annular rack 201 is formed with guide rail 2011, described roller 204
Annular groove 2041, described guide rail 2011 matches with annular groove 2041.Specifically, described guide rail 2011 and groove
It is V-shaped.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of apparatus for demonstrating horizontal throw motion of automation, including frame (1), it is characterised in that also including being fixed on the machine
Lifting device (2), flat throwing track (3) and bead on frame reclaim skewed slot (4), and the flat throwing track is done for providing bead (5)
The initial velocity of level throw motion, described bead, which reclaims skewed slot, to be used to collect the bead for completing level throw motion, described lifting device
Bead for reclaiming bead in skewed slot is promoted in flat throwing track, bead is completed flat throwing process again, wherein,
The lifting device includes the annular rack (201) being vertically arranged and the annular rack meshed gears (202), driven
The roller (204) for moving the buncher (203) of the gear and being connected with the gear, described annular rack is annular tooth
Bar, the roller is arranged on the outer rim of annular rack, and described annular rack is clipped between described gear and roller, described
Roller is rotated around axle I (205), and axle I one end is connected with electromagnet (206), and the electromagnet includes iron core, winding and direct current
Source, a described electrode of dc source and one end of winding is connected, and another electrode of the dc source passes through conduction
Element I (207) is connected with roller, and the other end of described winding is connected by conducting element II (208) with gear, described tooth
Wheel, roller and annular rack are conductor, and described connector is insulator, and described electromagnet passes through power supply, winding, tooth
Wheel, roller and the annular rack composition path being clipped between gear and roller, the tip portion of described annular rack are coated with
Insulating barrier (209), when the gear and roller are located at the top of annular rack, described electromagnet is open circuit,
Described flat throwing track includes being connected with each other tilting section and horizontal segment, and the entrance of described tilting section is located at when roller is in
The underface of electromagnet during the topmost position of annular rack,
Described bead reclaims the lower section that skewed slot is located between flat short-selling, and the bottom that the bead reclaims skewed slot is located at when roller is in
The underface of electromagnet during the bottom most position of annular rack.
2. the apparatus for demonstrating horizontal throw motion of automation according to claim 1, it is characterised in that for the small of level throw motion
Ball is iron ball or steel ball.
3. the apparatus for demonstrating horizontal throw motion of automation according to claim 2, it is characterised in that the described gear encloses
Around axle II (210) rotations, described gear and roller are connected by being arranged on the connection sheet (211) of annular rack side, described
Connection sheet one end be socketed on the axle I, the other end of the connection sheet is socketed on the axle II.
4. the apparatus for demonstrating horizontal throw motion of automation according to claim 2, it is characterised in that described flat throwing track and
Bead reclaims skewed slot and is in same plane.
5. the apparatus for demonstrating horizontal throw motion of automation according to claim 2, it is characterised in that the frame includes bottom plate
(101), top plate (102), left riser (103), right riser (104) and back vertical plate (105), described annular rack are fixed on left vertical
On plate, described bead reclaims skewed slot and is fixed on right riser and bottom plate, and coordinate line is provided with described back vertical plate.
6. the apparatus for demonstrating horizontal throw motion of automation according to claim 2, it is characterised in that described flat throwing track
Porch is arranged above tubaeform catching mouth.
7. the apparatus for demonstrating horizontal throw motion of automation according to claim 6, it is characterised in that also including stroboscopic camera,
Described stroboscopic camera is used to shooting the horizontal projectile motion trajectory of bead during flat throw.
8. the apparatus for demonstrating horizontal throw motion of automation according to claim 6, it is characterised in that described electromagnet and axle
It is to be slidably connected between I.
9. the apparatus for demonstrating horizontal throw motion of automation according to claim 6, it is characterised in that described conducting element I
It is to be slidably connected between conducting element II and gear between roller, described, described conducting element I and conducting element II
It is wire.
10. the apparatus for demonstrating horizontal throw motion of automation according to claim 6, it is characterised in that described annular rack
Outer rim be formed with guide rail (2011), described roller and be provided with annular groove (2041), the guide rail and annular groove phase
Matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210567.5A CN106997708B (en) | 2017-03-31 | 2017-03-31 | A kind of apparatus for demonstrating horizontal throw motion of automation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210567.5A CN106997708B (en) | 2017-03-31 | 2017-03-31 | A kind of apparatus for demonstrating horizontal throw motion of automation |
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| CN106997708A true CN106997708A (en) | 2017-08-01 |
| CN106997708B CN106997708B (en) | 2019-10-25 |
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| CN201710210567.5A Expired - Fee Related CN106997708B (en) | 2017-03-31 | 2017-03-31 | A kind of apparatus for demonstrating horizontal throw motion of automation |
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| CN109410713A (en) * | 2018-11-22 | 2019-03-01 | 马浩然 | A kind of high school physics that experimental precision is high conservation of momentum experimental provision |
| CN109615987A (en) * | 2018-12-29 | 2019-04-12 | 邵佳坤 | A kind of flat throwing continuous experimental apparatus of high school physics |
| CN111429786A (en) * | 2020-04-23 | 2020-07-17 | 中国人民解放军空军勤务学院 | Physical test bench |
| CN111899608A (en) * | 2019-05-06 | 2020-11-06 | 郭俊滔 | High school physics horizontal projectile motion presentation device |
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| CN108711384A (en) * | 2018-06-08 | 2018-10-26 | 东莞市闻誉实业有限公司 | LED luminescent systems |
| CN108877417A (en) * | 2018-07-09 | 2018-11-23 | 陈继珍 | A kind of physical teaching aid for level throw motion demonstration |
| CN109410713A (en) * | 2018-11-22 | 2019-03-01 | 马浩然 | A kind of high school physics that experimental precision is high conservation of momentum experimental provision |
| CN109615987A (en) * | 2018-12-29 | 2019-04-12 | 邵佳坤 | A kind of flat throwing continuous experimental apparatus of high school physics |
| CN111899608A (en) * | 2019-05-06 | 2020-11-06 | 郭俊滔 | High school physics horizontal projectile motion presentation device |
| CN111429786A (en) * | 2020-04-23 | 2020-07-17 | 中国人民解放军空军勤务学院 | Physical test bench |
| CN112309207A (en) * | 2020-11-03 | 2021-02-02 | 杭州师范大学 | Virtual-real fusion experiment platform and method for horizontal projectile motion |
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