CN108735053A - It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method - Google Patents
It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method Download PDFInfo
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- CN108735053A CN108735053A CN201811004094.4A CN201811004094A CN108735053A CN 108735053 A CN108735053 A CN 108735053A CN 201811004094 A CN201811004094 A CN 201811004094A CN 108735053 A CN108735053 A CN 108735053A
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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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- 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
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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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
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
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Abstract
Present invention relates particularly to it is a kind of can Intersect teaching demonstration physical teaching aid and teaching method, the level throw motion, stress balance, circuit of physics are organically combined, using rotary electric machine driving wire winding pole rotation, drawstring is tightened or loosened to wire winding pole, No.1 track is driven to surround No. two orbit rotations, change the gradient that bead falls, and then the flat initial velocity thrown of change, changes flat throwing track；Demonstration board enhances the flat displaying for throwing track of bead, and bead is stopped that bead falls in rollback slideway and rolls down to rollback slideway left end by baffle, and then is worked with dynamic balancing presentation component；Bead constantly enters the right stabilizer blade of piston cylinder, and the piston plate for pushing down right stabilizer blade moves down, and due to stress balance, the movement of piston cylinder liquid, the piston plate of right stabilizer blade moves up, and realizes the intuitive displaying of stress balance；The piston plate of right stabilizer blade gradually moves up under the influence of stress balance, and lower metal derby and upper metal block contact, touch switch are closed, and to which indicator light lights, realize the intuitive displaying of circuit.
Description
Technical field
The present invention relates to physics teaching teaching aid technical fields, and in particular to it is a kind of can Intersect teaching demonstration physical teaching aid and
Teaching method.
Background technology
Physics is to study the subject of the motion of matter most typically rule and substance basic structure.As taking the lead for natural science
Subject, physics research become greatly to universe, as low as all substances such as elementary particle most basic forms of motion and rule
The Research foundation of other each natural branch of science.Its theoretical construct makes full use of mathematics as the working language of oneself, with
It tests as the sole criterion for examining theoretical correctness, it is a current most accurate natural science subject.
Physics is broadly divided into several big subneighborhoods such as mechanics, calorifics, optics, electromagnetism.
Wherein in mechanics, level throw motion is very typical motion state.Object is with certain initial velocity horizontal direction
It dishes out, if object is only by gravity, such movement is called level throw motion.Level throw motion can regard horizontal direction as at the uniform velocity
The resultant motion of the movement of falling object of linear motion and vertical direction.The object of level throw motion, since suffered bonding force is
Constant force, so level throw motion is uniformly changed velocity movement, the movement locus of flat paraboloid is a parabola.Level throw motion is curve
The time for moving level throw motion is only related with the vertical height of throw point；The horizontal displacement of object landing and time (vertical height)
And horizontal initial rate is related, the direction of velocity variations is straight down always.
Wherein, in mechanics, stress balance is also very typical motion state.Balance refers to two or more
Power act on an object, each power offsets each other, and makes object at opposite stationary state.
Wherein, in electromagnetism, circuit is also very important part.It is made of plain conductor and electrical, electronic unit
Galvanic circle, referred to as circuit.Input terminal is set to generate potential difference plus power supply in circuit input end, when circuit communication can work
Make.The presence of electric current can be come out by some instrument tests, such as voltmeter or ammeter deflection, light bulb shine；According to stream
It is generally divided into two kinds by the galvanic properties crossed：Direct current by circuit be known as " DC circuit ", alternating current by circuit
Referred to as " alternating current circuit ".
Existing level throw motion demonstration device is too simple, in demonstration can not the more objective displaying movement fact, and it is small
Ball position is constant, initial velocity is constant so that experimental demonstration effect is not comprehensive, influences quality of instruction.
And level throw motion demonstration device on the market is demonstrated as just flat throwing, can not simultaneously be equalled above-mentioned stress
One of weighing apparatus, circuit all combine, and cause artificially to be divided when teaching, and student single can only understand, to anti-
Come over teaching efficiency is made to be restricted, therefore should design a batch from intercrossing teaching and can be used in Intersect teaching demonstration
Ground physical teaching aid.
Invention content
(1) the technical issues of solving
Present invention aims to overcome that the shortcomings of the prior art, and provide it is a kind of can Intersect teaching demonstration physics religion
Tool and teaching method optimize bandwagon effect, and guiding student carries out intercrossing teaching.
(2) technical solution
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal, is fixed in the vertical riser of pedestal left end；
It is provided with lifting component at the top of riser；It is flat to throw presentation component setting below lifting component；Balance presentation component is set
It sets on pedestal.
Wherein, riser is provided with mounting plate at three, respectively No.1 mounting plate, No. two mounting plates and No. three peaces from top to bottom
Loading board；Component is lifted to be arranged in No.1 mounting plate bottom surface, including rotary electric machine, wire winding pole and mounting base, rotary electric machine and installation
Seat is respectively and fixedly installed to No.1 mounting plate both ends, and the output end face of rotary electric machine stretches out to mounting base and connects wire winding pole one
End, the wire winding pole other end are rotatablely connected mounting base；Drawstring is provided on wire winding pole.
Wherein, it includes storing up ball bucket, going out bulb and adjustable slope to put down and throw presentation component, and drawstring one end is fixed and is wrapped in coiling
On bar, at the top of other end connection storage ball bucket；The slope surface of right low left high is provided in storage ball bucket, it is relatively low that storage ball bottom of the barrel corresponds to slope surface
One end be communicated with out bulb；Adjustable slope includes hinged No.1 track and No. two tracks；No.1 track inclination is arranged, top
It holds and goes out bulb outlet and connect；No. two tracks are horizontally disposed, and support is fixed by No. two mounting plates.
Wherein, it is additionally provided with blocking component below storage ball bucket；Blocking component includes cam, bending plate, spring and partition board, storage
Ball bucket bottom surface left end is provided with rotation cam, and rotation cam is connected with driving motor, storage ball bucket bottom surface correspond to cam, go out bulb it
Between be connected with partition board, bending plate is the class c-type plate vertically bent up and down, and top bending is longer than lower part bending, and bending plate setting exists
On the left of partition board, cam is pressed on bending plate；Be provided with spring between bending plate and partition board, the bending end of bending plate pass through to the right every
Plate, middle and upper part bending also protrude into out in bulb.
Wherein, further include demonstration board, demonstration board is connected to by supporting rod above pedestal right end, and net is provided on demonstration board
Ruling, demonstration board right end are provided with baffle；Demonstration board bottom is provided with railroad shoe, and rollback with left lower than right is provided in railroad shoe
Slideway.
Wherein, balance presentation component includes U-shaped piston cylinder, and U-shaped piston cylinder is fixed on the base, and two stabilizer blades are set straight up
It sets, wherein right stabilizer blade corresponds to rollback slide egress, receives the bead of whereabouts；Piston plate, U-shaped piston are both provided in two stabilizer blades
Section is filled with liquid between the corresponding piston plate of cylinder, and the piston plate on right side has also connected up vertical connecting rod, and connecting rod stretches out U-shaped piston
Cylinder is simultaneously connected with lower metal derby.
Wherein, U-shaped piston cylinder uses transparent material；It is provided with baffle ring at the top of the right stabilizer blade of U-shaped piston cylinder, is set on the right side of baffle ring
It is equipped with the opening of corresponding rollback slide egress.
Wherein, circuit demonstration component includes indicator light, upper metal derby and power supply, and upper metal derby is arranged corresponding to lower metal derby
In the right end bottom surface of No. three mounting plates, touch switch is formed；Power supply is set on the base, and indicator light is arranged in No. three mounting plates
On, power supply, touch switch and indicator light constitute series loop.
Using the teaching method of above-mentioned physical teaching aid, include the following steps,
S1 launches several steelies into storage ball bucket；
S2, the driving motor of starting cam, driving motor band moving cam rotate, common work of the bending plate in cam and spring
It under, moves back and forth, realizes and blocked to going out the intermittent of bulb, bead interval is fallen from going out bulb；
S3 starts the rotary electric machine of wire winding pole, and drawstring is tightened or loosened to wire winding pole, and No.1 track is driven to surround No. two tracks
Rotation changes the gradient that bead falls, and then the flat initial velocity thrown of change, changes flat throwing track；
S4, bead do level throw motion by the guiding on adjustable slope, receive baffle, fall on rollback slideway, and fall
Enter in the right stabilizer blade of U-shaped piston cylinder；
S5, bead constantly enter the right stabilizer blade of piston cylinder, and the piston plate for pushing down right stabilizer blade moves down, due to stress balance, piston
Cylinder liquid movement, the piston plate of right stabilizer blade move up；
The piston plate of S6, right stabilizer blade gradually move up, and lower metal derby and upper metal block contact, touch switch are closed, to
Indicator light lights；
S7 closes the driving motor of cam and the rotary electric machine of wire winding pole, completes demonstration.
Wherein, S2, S3 step are interchangeable.
(3) advantageous effect
The present invention provides it is a kind of can Intersect teaching demonstration physical teaching aid and teaching method, have the following advantages that：
1, using rotary electric machine driving wire winding pole rotation, wire winding pole is tightened or is loosened drawstring, No.1 track is driven to surround two
Number orbit rotation changes the gradient that bead falls, and then changes the flat initial velocity thrown, and changes and flat throws track；
2, it is rotated using driving motor band moving cam, bending plate moves back and forth under the collective effect of cam and spring, real
It is now blocked to going out the intermittent of bulb, bead interval is fallen from going out bulb, coordinates the adjustment of adjustable track；
3, demonstration board enhances the flat displaying for throwing track of bead, and bead is stopped that bead falls in rollback slideway and tumbles by baffle
It works to rollback slideway left end, and then with dynamic balancing presentation component；
4, bead constantly enters the right stabilizer blade of piston cylinder, and the piston plate for pushing down right stabilizer blade moves down, due to stress balance, piston cylinder
Liquid moves, and the piston plate of right stabilizer blade moves up, and realizes the intuitive displaying of stress balance；
5, the piston plate of right stabilizer blade gradually moves up under the influence of stress balance, and lower metal derby and upper metal block contact connect
Touch switches are closed, and to which indicator light lights, realize the intuitive displaying of circuit.
6, the present invention organically combines the level throw motion, stress balance, circuit of physics, and providing a set of can hand over
The physical teaching aid and teaching method for pitching teaching demonstration greatly strengthen the teaching displaying function of teaching aid, improve teaching efficiency.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention, protects some embodiments, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the structure chart that component is lifted in the present invention；
Fig. 3 is the structure chart that ball bucket is stored up in the present invention；
Fig. 4 is the structure chart of ramp assemblies in the present invention；
Fig. 5 is the structure chart that presentation component is balanced in the present invention；
Fig. 6 is the circuit diagram of circuit demonstration component in the present invention；
In attached drawing, parts list represented by the reference numerals are as follows：
1- pedestals, 101- power supplys,
2- risers, 201- No.1 mounting plates, No. bis- mounting plates of 202-, No. tri- mounting plates of 203-, 204- bendings,
3- lifting components, 301- rotary electric machines, 302- wire winding poles, 303- mounting bases, 304- drawstrings,
4- indicator lights, the upper metal derbies of 401-,
5- stores up ball bucket, 501- slope surfaces, and 502- goes out bulb,
6- blocking components, 601- cams, 602- bending plates, 603- springs, 604- partition boards,
7- is adjustable slope, 701- No.1 tracks, No. bis- tracks of 702-,
8- demonstration boards, 801- railroad shoes, 802- rollback slideways, 803- supporting rods, 804- baffles,
9- balance presentation components, 901-U type piston cylinders, 902- baffle rings, 903- piston plates, 904- liquid, 905- connecting rods,
Metal derby under 906-,
10- beads.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal 1, is fixed in the vertical riser 2 of 1 left end of pedestal；
2 top of riser is provided with lifting component 3；It is flat to throw presentation component setting below lifting component 3；Balance presentation component
9 are arranged on pedestal 1.
Wherein, riser 2 is connected with mounting plate at three, respectively 201, No. two mounting plates 202 of No.1 mounting plate from top to bottom
With No. three mounting plates 203；The setting of component 3 is lifted in 201 bottom surface of No.1 mounting plate, including rotary electric machine 301, wire winding pole 302 and
Mounting base 303, rotary electric machine 301 and mounting base 303 are respectively and fixedly installed to 201 both ends of No.1 mounting plate, rotary electric machine 301
Output end face stretches out to mounting base 303 and connects 302 one end of wire winding pole, and 302 other end of wire winding pole is rotatablely connected mounting base 303；
Drawstring 304 is provided on wire winding pole 302；
Wherein, it includes storing up ball bucket 5, going out bulb 502 and adjustable slope 7 to put down and throw presentation component, and 304 one end of drawstring is fixed and twined
It is wound on wire winding pole 302,5 top of other end connection storage ball bucket；It is machined with the slope surface 501 of right low left high in storage ball bucket 5, stores up ball bucket
5 bottoms correspond to 501 lower one end of slope surface and are communicated with out bulb 502；Adjustable slope 7 includes hinged No.1 track 701 and two
Number track 702；No.1 track 701 is obliquely installed, and top is connected with the outlet of bulb 502 is gone out；No. two tracks 702 are horizontally disposed,
Support is fixed by No. two mounting plates 202.
Specifically, 5 storage of storage ball bucket has several steelies 10, bead 10 is fallen from bulb 502 is gone out, and is fallen adjustable
On slope 7, realizes that bead is flat by the guiding of No.1 track 701 and No. two tracks 702 and throw；Start the rotation electricity of wire winding pole 302
Drawstring 304 is tightened or loosened to machine 301, wire winding pole 302, and No.1 track 701 is driven to be rotated around No. two tracks 702, changes bead
10 gradients to fall, and then change the flat initial velocity thrown, change is flat to throw track.
Embodiment 2
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal 1, is fixed in the vertical riser 2 of 1 left end of pedestal；
2 top of riser is provided with lifting component 3；It is flat to throw presentation component setting below lifting component 3；Balance presentation component
9 are arranged on pedestal 1.
Wherein, riser 2 is connected with mounting plate at three, respectively 201, No. two mounting plates 202 of No.1 mounting plate from top to bottom
With No. three mounting plates 203；The setting of component 3 is lifted in 201 bottom surface of No.1 mounting plate, including rotary electric machine 301, wire winding pole 302 and
Mounting base 303, rotary electric machine 301 and mounting base 303 are respectively and fixedly installed to 201 both ends of No.1 mounting plate, rotary electric machine 301
Output end face stretches out to mounting base 303 and connects 302 one end of wire winding pole, and 302 other end of wire winding pole is rotatablely connected mounting base 303；
Drawstring 304 is provided on wire winding pole 302；
Wherein, it includes storing up ball bucket 5, going out bulb 502 and adjustable slope 7 to put down and throw presentation component, and 304 one end of drawstring is fixed and twined
It is wound on wire winding pole 302,5 top of other end connection storage ball bucket；It is machined with the slope surface 501 of right low left high in storage ball bucket 5, stores up ball bucket
5 bottoms correspond to 501 lower one end of slope surface and are communicated with out bulb 502；Adjustable slope 7 includes hinged No.1 track 701 and two
Number track 702；No.1 track 701 is obliquely installed, and top is connected with the outlet of bulb 502 is gone out；No. two tracks 702 are horizontally disposed,
Support is fixed by No. two mounting plates 202.
Wherein, riser 2 corresponds to 5 rotation path of storage ball bucket and is also machined with bending 204, to adapt to gradient adjustment, avoids storage ball
Bucket 5 is hit in adjustment with riser 2.
Embodiment 3
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal 1, is fixed in the vertical riser 2 of 1 left end of pedestal；
2 top of riser is provided with lifting component 3；It is flat to throw presentation component setting below lifting component 3；Balance presentation component
9 are arranged on pedestal 1.
Wherein, riser 2 is connected with mounting plate at three, respectively 201, No. two mounting plates 202 of No.1 mounting plate from top to bottom
With No. three mounting plates 203；The setting of component 3 is lifted in 201 bottom surface of No.1 mounting plate, including rotary electric machine 301, wire winding pole 302 and
Mounting base 303, rotary electric machine 301 and mounting base 303 are respectively and fixedly installed to 201 both ends of No.1 mounting plate, rotary electric machine 301
Output end face stretches out to mounting base 303 and connects 302 one end of wire winding pole, and 302 other end of wire winding pole is rotatablely connected mounting base 303；
Drawstring 304 is provided on wire winding pole 302；
Wherein, it includes storing up ball bucket 5, going out bulb 502 and adjustable slope 7 to put down and throw presentation component, and 304 one end of drawstring is fixed and twined
It is wound on wire winding pole 302,5 top of other end connection storage ball bucket；It is machined with the slope surface 501 of right low left high in storage ball bucket 5, stores up ball bucket
5 bottoms correspond to 501 lower one end of slope surface and are communicated with out bulb 502；Adjustable slope 7 includes hinged No.1 track 701 and two
Number track 702；No.1 track 701 is obliquely installed, and top is connected with the outlet of bulb 502 is gone out；No. two tracks 702 are horizontally disposed,
Support is fixed by No. two mounting plates 202.
Wherein, riser 2 corresponds to 5 rotation path of storage ball bucket and is also machined with bending 204, to adapt to gradient adjustment, avoids storage ball
Bucket 5 is hit in adjustment with riser 2.
Wherein, 5 lower section of storage ball bucket is additionally provided with blocking component 6；Blocking component 6 includes cam 601, bending plate 603, spring
603 and partition board 604,5 bottom surface left end of storage ball bucket is equipped with rotation cam 601, and rotation cam 601 is connected with driving motor, stores up ball
Bucket 5 bottom surfaces correspond to cam 601, go out bulb 502 between be connected with partition board 604, bending plate 603 is the class c-type vertically bent up and down
Plate, top bending are longer than lower part bending, and the setting of bending plate 603 is pressed in 604 left side of partition board, cam 601 on bending plate 603；It is curved
Spring 603 is connected between folded plate 603 and partition board 604, the bending end of bending plate 603 passes through to the right partition board 604, and middle and upper part is curved
Folding also protrudes into out in bulb 502.
Specifically, the driving motor of starting cam 601, driving motor band moving cam 601 rotates, and bending plate 603 is in cam
601 and spring 603 collective effect under, move back and forth, realize and blocked to going out the intermittent of bulb 502, bead interval is from going out ball
Pipe 502 is fallen, and coordinates the adjustment of adjustable track 7.
Embodiment 4
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal 1, is fixed in the vertical riser 2 of 1 left end of pedestal；
2 top of riser is provided with lifting component 3；It is flat to throw presentation component setting below lifting component 3；Balance presentation component
9 are arranged on pedestal 1.
Wherein, riser 2 is connected with mounting plate at three, respectively 201, No. two mounting plates 202 of No.1 mounting plate from top to bottom
With No. three mounting plates 203；The setting of component 3 is lifted in 201 bottom surface of No.1 mounting plate, including rotary electric machine 301, wire winding pole 302 and
Mounting base 303, rotary electric machine 301 and mounting base 303 are respectively and fixedly installed to 201 both ends of No.1 mounting plate, rotary electric machine 301
Output end face stretches out to mounting base 303 and connects 302 one end of wire winding pole, and 302 other end of wire winding pole is rotatablely connected mounting base 303；
Drawstring 304 is provided on wire winding pole 302；
Wherein, it includes storing up ball bucket 5, going out bulb 502 and adjustable slope 7 to put down and throw presentation component, and 304 one end of drawstring is fixed and twined
It is wound on wire winding pole 302,5 top of other end connection storage ball bucket；It is machined with the slope surface 501 of right low left high in storage ball bucket 5, stores up ball bucket
5 bottoms correspond to 501 lower one end of slope surface and are communicated with out bulb 502；Adjustable slope 7 includes hinged No.1 track 701 and two
Number track 702；No.1 track 701 is obliquely installed, and top is connected with the outlet of bulb 502 is gone out；No. two tracks 702 are horizontally disposed,
Support is fixed by No. two mounting plates 202.
Wherein, riser 2 corresponds to 5 rotation path of storage ball bucket and is also machined with bending 204, to adapt to gradient adjustment, avoids storage ball
Bucket 5 is hit in adjustment with riser 2.
Wherein, 5 lower section of storage ball bucket is additionally provided with blocking component 6；Blocking component 6 includes cam 601, bending plate 603, spring
603 and partition board 604,5 bottom surface left end of storage ball bucket is equipped with rotation cam 601, and rotation cam 601 is connected with driving motor, stores up ball
Bucket 5 bottom surfaces correspond to cam 601, go out bulb 502 between be connected with partition board 604, bending plate 603 is the class c-type vertically bent up and down
Plate, top bending are longer than lower part bending, and the setting of bending plate 603 is pressed in 604 left side of partition board, cam 601 on bending plate 603；It is curved
Spring 603 is connected between folded plate 603 and partition board 604, the bending end of bending plate 603 passes through to the right partition board 604, and middle and upper part is curved
Folding also protrudes into out in bulb 502.
Further include demonstration board 8, demonstration board 8 is connected to by supporting rod 803 above 1 right end of pedestal, is printed on net on demonstration board 8
Ruling, 8 right end of demonstration board are connected with baffle 804；8 bottom of demonstration board is connected with railroad shoe 801, and a left side is equipped in railroad shoe 801
Low right high rollback slideway 802.
Specifically, demonstration board 8 enhances the flat displaying for throwing track of bead 10, bead 10 is stopped that bead 10 is fallen by baffle 804
Rollback slideway 802 simultaneously rolls down to 802 left end of rollback slideway.
Embodiment 5
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal 1, is fixed in the vertical riser 2 of 1 left end of pedestal；
2 top of riser is provided with lifting component 3；It is flat to throw presentation component setting below lifting component 3；Balance presentation component
9 are arranged on pedestal 1.
Wherein, riser 2 is connected with mounting plate at three, respectively 201, No. two mounting plates 202 of No.1 mounting plate from top to bottom
With No. three mounting plates 203；The setting of component 3 is lifted in 201 bottom surface of No.1 mounting plate, including rotary electric machine 301, wire winding pole 302 and
Mounting base 303, rotary electric machine 301 and mounting base 303 are respectively and fixedly installed to 201 both ends of No.1 mounting plate, rotary electric machine 301
Output end face stretches out to mounting base 303 and connects 302 one end of wire winding pole, and 302 other end of wire winding pole is rotatablely connected mounting base 303；
Drawstring 304 is provided on wire winding pole 302；
Wherein, it includes storing up ball bucket 5, going out bulb 502 and adjustable slope 7 to put down and throw presentation component, and 304 one end of drawstring is fixed and twined
It is wound on wire winding pole 302,5 top of other end connection storage ball bucket；It is machined with the slope surface 501 of right low left high in storage ball bucket 5, stores up ball bucket
5 bottoms correspond to 501 lower one end of slope surface and are communicated with out bulb 502；Adjustable slope 7 includes hinged No.1 track 701 and two
Number track 702；No.1 track 701 is obliquely installed, and top is connected with the outlet of bulb 502 is gone out；No. two tracks 702 are horizontally disposed,
Support is fixed by No. two mounting plates 202.
Wherein, riser 2 corresponds to 5 rotation path of storage ball bucket and is also machined with bending 204, to adapt to gradient adjustment, avoids storage ball
Bucket 5 is hit in adjustment with riser 2.
Wherein, 5 lower section of storage ball bucket is additionally provided with blocking component 6；Blocking component 6 includes cam 601, bending plate 603, spring
603 and partition board 604,5 bottom surface left end of storage ball bucket is equipped with rotation cam 601, and rotation cam 601 is connected with driving motor, stores up ball
Bucket 5 bottom surfaces correspond to cam 601, go out bulb 502 between be connected with partition board 604, bending plate 603 is the class c-type vertically bent up and down
Plate, top bending are longer than lower part bending, and the setting of bending plate 603 is pressed in 604 left side of partition board, cam 601 on bending plate 603；It is curved
Spring 603 is connected between folded plate 603 and partition board 604, the bending end of bending plate 603 passes through to the right partition board 604, and middle and upper part is curved
Folding also protrudes into out in bulb 502.
Further include demonstration board 8, demonstration board 8 is connected to by supporting rod 803 above 1 right end of pedestal, is printed on net on demonstration board 8
Ruling, 8 right end of demonstration board are connected with baffle 804；8 bottom of demonstration board is connected with railroad shoe 801, and a left side is equipped in railroad shoe 801
Low right high rollback slideway 802.
It includes U-shaped piston cylinder 901 to balance presentation component 9, and U-shaped piston cylinder 901 is fixed on pedestal 1, two stabilizer blades vertically to
Upper setting receives the bead 10 of whereabouts wherein right stabilizer blade is exported corresponding to rollback slideway 802；It is respectively arranged with piston plate in two stabilizer blades
903, section is filled with liquid 904 between U-shaped piston cylinder 901 corresponds to piston plate 903, and the piston plate 901 on right side has also connected up
Vertical connecting rod 905, connecting rod 905 stretch out U-shaped piston cylinder 901 and are connected with lower metal derby 906.
Specifically, bead 10 constantly enters 903 right stabilizer blade of piston cylinder, the piston plate 903 for pushing down right stabilizer blade moves down, due to by
Dynamic balance, piston cylinder liquid 904 move, and the piston plate of right stabilizer blade moves up.
Embodiment 6
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal 1, is fixed in the vertical riser 2 of 1 left end of pedestal；
2 top of riser is provided with lifting component 3；It is flat to throw presentation component setting below lifting component 3；Balance presentation component
9 are arranged on pedestal 1.
Wherein, riser 2 is connected with mounting plate at three, respectively 201, No. two mounting plates 202 of No.1 mounting plate from top to bottom
With No. three mounting plates 203；The setting of component 3 is lifted in 201 bottom surface of No.1 mounting plate, including rotary electric machine 301, wire winding pole 302 and
Mounting base 303, rotary electric machine 301 and mounting base 303 are respectively and fixedly installed to 201 both ends of No.1 mounting plate, rotary electric machine 301
Output end face stretches out to mounting base 303 and connects 302 one end of wire winding pole, and 302 other end of wire winding pole is rotatablely connected mounting base 303；
Drawstring 304 is provided on wire winding pole 302；
Wherein, it includes storing up ball bucket 5, going out bulb 502 and adjustable slope 7 to put down and throw presentation component, and 304 one end of drawstring is fixed and twined
It is wound on wire winding pole 302,5 top of other end connection storage ball bucket；It is machined with the slope surface 501 of right low left high in storage ball bucket 5, stores up ball bucket
5 bottoms correspond to 501 lower one end of slope surface and are communicated with out bulb 502；Adjustable slope 7 includes hinged No.1 track 701 and two
Number track 702；No.1 track 701 is obliquely installed, and top is connected with the outlet of bulb 502 is gone out；No. two tracks 702 are horizontally disposed,
Support is fixed by No. two mounting plates 202.
Wherein, riser 2 corresponds to 5 rotation path of storage ball bucket and is also machined with bending 204, to adapt to gradient adjustment, avoids storage ball
Bucket 5 is hit in adjustment with riser 2.
Wherein, 5 lower section of storage ball bucket is additionally provided with blocking component 6；Blocking component 6 includes cam 601, bending plate 603, spring
603 and partition board 604,5 bottom surface left end of storage ball bucket is equipped with rotation cam 601, and rotation cam 601 is connected with driving motor, stores up ball
Bucket 5 bottom surfaces correspond to cam 601, go out bulb 502 between be connected with partition board 604, bending plate 603 is the class c-type vertically bent up and down
Plate, top bending are longer than lower part bending, and the setting of bending plate 603 is pressed in 604 left side of partition board, cam 601 on bending plate 603；It is curved
Spring 603 is connected between folded plate 603 and partition board 604, the bending end of bending plate 603 passes through to the right partition board 604, and middle and upper part is curved
Folding also protrudes into out in bulb 502.
Further include demonstration board 8, demonstration board 8 is connected to by supporting rod 803 above 1 right end of pedestal, is printed on net on demonstration board 8
Ruling, 8 right end of demonstration board are connected with baffle 804；8 bottom of demonstration board is connected with railroad shoe 801, and a left side is equipped in railroad shoe 801
Low right high rollback slideway 802.
It includes U-shaped piston cylinder 901 to balance presentation component 9, and U-shaped piston cylinder 901 is fixed on pedestal 1, two stabilizer blades vertically to
Upper setting receives the bead 10 of whereabouts wherein right stabilizer blade is exported corresponding to rollback slideway 802；It is respectively arranged with piston plate in two stabilizer blades
903, section is filled with liquid 904 between U-shaped piston cylinder 901 corresponds to piston plate 903, and the piston plate 901 on right side has also connected up
Vertical connecting rod 905, connecting rod 905 stretch out U-shaped piston cylinder 901 and are connected with lower metal derby 906.
In order to enhance bandwagon effect, U-shaped piston cylinder 901 uses transparent material, convenient for observation internal displacement variation.
Baffle ring 902 is installed, 902 right side of baffle ring is provided with corresponding rollback slideway at the top of the right stabilizer blade of U-shaped piston cylinder 901
The opening of 802 outlets ensures that bead 10 is successfully fallen into U-shaped piston cylinder 901.
Embodiment 7
It is a kind of can Intersect teaching demonstration physical teaching aid, including frame, flat throw presentation component, balance presentation component and circuit
Presentation component；
Frame includes pedestal 1, is fixed in the vertical riser 2 of 1 left end of pedestal；
2 top of riser is provided with lifting component 3；It is flat to throw presentation component setting below lifting component 3；Balance presentation component
9 are arranged on pedestal 1.
Wherein, riser 2 is connected with mounting plate at three, respectively 201, No. two mounting plates 202 of No.1 mounting plate from top to bottom
With No. three mounting plates 203；The setting of component 3 is lifted in 201 bottom surface of No.1 mounting plate, including rotary electric machine 301, wire winding pole 302 and
Mounting base 303, rotary electric machine 301 and mounting base 303 are respectively and fixedly installed to 201 both ends of No.1 mounting plate, rotary electric machine 301
Output end face stretches out to mounting base 303 and connects 302 one end of wire winding pole, and 302 other end of wire winding pole is rotatablely connected mounting base 303；
Drawstring 304 is provided on wire winding pole 302；
Wherein, it includes storing up ball bucket 5, going out bulb 502 and adjustable slope 7 to put down and throw presentation component, and 304 one end of drawstring is fixed and twined
It is wound on wire winding pole 302,5 top of other end connection storage ball bucket；It is machined with the slope surface 501 of right low left high in storage ball bucket 5, stores up ball bucket
5 bottoms correspond to 501 lower one end of slope surface and are communicated with out bulb 502；Adjustable slope 7 includes hinged No.1 track 701 and two
Number track 702；No.1 track 701 is obliquely installed, and top is connected with the outlet of bulb 502 is gone out；No. two tracks 702 are horizontally disposed,
Support is fixed by No. two mounting plates 202.
Wherein, riser 2 corresponds to 5 rotation path of storage ball bucket and is also machined with bending 204, to adapt to gradient adjustment, avoids storage ball
Bucket 5 is hit in adjustment with riser 2.
Wherein, 5 lower section of storage ball bucket is additionally provided with blocking component 6；Blocking component 6 includes cam 601, bending plate 603, spring
603 and partition board 604,5 bottom surface left end of storage ball bucket is equipped with rotation cam 601, and rotation cam 601 is connected with driving motor, stores up ball
Bucket 5 bottom surfaces correspond to cam 601, go out bulb 502 between be connected with partition board 604, bending plate 603 is the class c-type vertically bent up and down
Plate, top bending are longer than lower part bending, and the setting of bending plate 603 is pressed in 604 left side of partition board, cam 601 on bending plate 603；It is curved
Spring 603 is connected between folded plate 603 and partition board 604, the bending end of bending plate 603 passes through to the right partition board 604, and middle and upper part is curved
Folding also protrudes into out in bulb 502.
Further include demonstration board 8, demonstration board 8 is connected to by supporting rod 803 above 1 right end of pedestal, is printed on net on demonstration board 8
Ruling, 8 right end of demonstration board are connected with baffle 804；8 bottom of demonstration board is connected with railroad shoe 801, and a left side is equipped in railroad shoe 801
Low right high rollback slideway 802.
It includes U-shaped piston cylinder 901 to balance presentation component 9, and U-shaped piston cylinder 901 is fixed on pedestal 1, two stabilizer blades vertically to
Upper setting receives the bead 10 of whereabouts wherein right stabilizer blade is exported corresponding to rollback slideway 802；It is respectively arranged with piston plate in two stabilizer blades
903, section is filled with liquid 904 between U-shaped piston cylinder 901 corresponds to piston plate 903, and the piston plate 901 on right side has also connected up
Vertical connecting rod 905, connecting rod 905 stretch out U-shaped piston cylinder 901 and are connected with lower metal derby 906.
In order to enhance bandwagon effect, U-shaped piston cylinder 901 uses transparent material, convenient for observation internal displacement variation.
Baffle ring 902 is installed, 902 right side of baffle ring is provided with corresponding rollback slideway at the top of the right stabilizer blade of U-shaped piston cylinder 901
The opening of 802 outlets ensures that bead 10 is successfully fallen into U-shaped piston cylinder 901.
Circuit demonstration component includes indicator light 4, upper metal derby 401 and power supply 101, and upper metal derby 401 corresponds to lower metal
Block 906 is mounted on the right end bottom surface of No. three mounting plates 203, forms touch switch；Power supply 101 is mounted on pedestal 1, indicator light
4 are mounted on No. three mounting plates 203, and power supply 101, touch switch and indicator light 4 constitute series loop
Specifically, the piston plate 903 of right stabilizer blade gradually moves up under the influence of stress balance, lower metal derby 906 and upper gold
Belong to block 401 to contact, touch switch is closed, to which indicator light 4 lights.
Corresponding teaching method is introduced using the teaching aid of embodiment 7, is included the following steps,
S1 launches several steelies 10 into storage ball bucket 5；
S2, the driving motor of starting cam 601, driving motor band moving cam 601 rotate, and bending plate 602 is in 601 He of cam
It under the collective effect of spring 603, moves back and forth, realizes and blocked to going out the intermittent of bulb 502,10 interval of bead is from going out bulb
502 fall；
S3 starts the rotary electric machine 301 of wire winding pole 302, and drawstring 304 is tightened or loosened to wire winding pole 302, drives No.1 track
701 rotate around No. two tracks 702, change the gradient that bead 10 falls, and then the flat initial velocity thrown of change, change flat throwing rail
Mark；
S4, bead 10 do level throw motion by the guiding on adjustable slope 7, receive the blocking of baffle 804, fall in rollback slideway
On 802, and fall into 901 right stabilizer blade of U-shaped piston cylinder；
S5, bead 10 constantly enter the right stabilizer blade of piston cylinder, and the piston plate 903 for pushing down right stabilizer blade moves down, due to stress balance,
Piston cylinder liquid 904 moves, and the piston plate 903 of right stabilizer blade moves up；
The piston plate 903 of S6, right stabilizer blade gradually move up, and lower metal derby 906 is contacted with upper metal derby 401, touch switch
It is closed, to which indicator light 4 lights；
S7 closes the driving motor of cam 601 and the rotary electric machine 301 of wire winding pole 302, completes demonstration.
Wherein, S2, S3 step can exchange.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Specific features described in conjunction with this embodiment or example, structure, material live at least one implementation that feature is contained in the present invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, also do not limit the specific implementation mode that the invention is only.Obviously, according to the content of this specification, can make
Many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the original of the present invention
Reason and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only authorized
The limitation of sharp claim and its full scope and equivalent.
Claims (10)
1. it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：Including frame, flat throwing presentation component, balance demonstration
Component (9) and circuit demonstration component；
The frame includes pedestal (1), is fixed in the vertical riser (2) of pedestal (1) left end；
Lifting component (3) is provided at the top of the riser (2)；The flat throwing presentation component setting is below lifting component (3)；Institute
Balance presentation component (9) is stated to be arranged on pedestal (1).
2. it is according to claim 1 it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：The riser (2)
It is provided with mounting plate at three, respectively No.1 mounting plate (201), No. two mounting plates (202) and No. three mounting plates from top to bottom
(203)；The lifting component (3) is arranged in No.1 mounting plate (201) bottom surface, including rotary electric machine (301), wire winding pole (302)
And mounting base (303), rotary electric machine (301) and mounting base (303) are respectively and fixedly installed to No.1 mounting plate (201) both ends, turn
The output end face of dynamic motor (301) stretches out to mounting base (303) and connects wire winding pole (302) one end, wire winding pole (302) other end
It is rotatablely connected mounting base (303)；It is provided with drawstring (304) on the wire winding pole (302).
3. it is according to claim 2 it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：The flat throwing demonstration
Component includes storage ball bucket (5), goes out bulb (502) and adjustable slope (7), and drawstring (304) one end is fixed and is wrapped in wire winding pole
(302) on, at the top of other end connection storage ball bucket (5)；It is provided with the slope surface (501) of right low left high in the storage ball bucket (5), stores up ball
Bucket (5) bottom corresponds to slope surface (501) lower one end and is communicated with out bulb (502)；The adjustable slope (7) includes hinged one
Number track (701) and No. two tracks (702)；The No.1 track (701) is obliquely installed, and top is exported with bulb (502) is gone out
Connection；No. two tracks (702) are horizontally disposed, pass through the fixed support of No. two mounting plates (202).
4. it is according to claim 3 it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：The storage ball bucket
(5) lower section is additionally provided with blocking component (6)；The blocking component (6) includes cam (601), bending plate (602), spring (603)
And partition board (604), storage ball bucket (5) bottom surface left end are provided with rotation cam (601), rotation cam (601) is connected with driving
Motor, storage ball bucket (5) bottom surface correspond to cam (601), go out bulb (502) between be connected with partition board (604), bending plate (602) is
The class c-type plate vertically bent up and down, top bending are longer than lower part bending, and bending plate (602) setting is convex on the left of partition board (604)
Wheel (601) is pressed on bending plate (602)；It is provided with spring (603), bending plate between the bending plate (602) and partition board (604)
(602) bending end passes through to the right partition board (604), middle and upper part bending to also protrude into out in bulb (502).
5. it is according to claim 4 it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：It further include demonstration board
(8), demonstration board (8) is connected to by supporting rod (803) above pedestal (1) right end, and demonstration board is provided with grid lines on (8), drills
Show that plate (8) right end is provided with baffle (804)；Demonstration board (8) bottom is provided with railroad shoe (801), and railroad shoe is set on (801)
It is equipped with rollback slideway (802) with left lower than right.
6. it is according to claim 5 it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：The balance demonstration
Component (9) includes U-shaped piston cylinder (901), and U-shaped piston cylinder (901) is fixed on pedestal (1), and two stabilizer blades are arranged straight up,
Middle right stabilizer blade is exported corresponding to rollback slideway (802), receives the bead (10) of whereabouts；It is both provided with piston plate in two stabilizer blades
(903), section is filled with liquid (904) between the corresponding piston plate (903) of U-shaped piston cylinder (901), and the piston plate (903) on right side is also
Vertical connecting rod (905) is connected up, connecting rod (905) stretches out U-shaped piston cylinder (901) and is connected with lower metal derby (906).
7. it is according to claim 6 it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：The U-shaped piston
Cylinder (901) uses transparent material；Baffle ring (902) is provided at the top of the right stabilizer blade of the U-shaped piston cylinder (901), baffle ring (902) is right
Side is provided with the opening of corresponding rollback slideway (802) outlet.
8. it is according to claim 7 it is a kind of can Intersect teaching demonstration physical teaching aid, it is characterised in that：The circuit demonstration
Component includes indicator light (4), upper metal derby (401) and power supply (101), and upper metal derby (401) sets corresponding to lower metal derby (906)
It sets in the right end bottom surface of No. three mounting plates (203), forms touch switch；Power supply (101) is arranged on pedestal (1), indicator light
(4) it is arranged on No. three mounting plates (203), power supply (101), touch switch and indicator light (4) constitute series loop.
9. utilizing the teaching method of physical teaching aid described in claim 8, which is characterized in that include the following steps,
S1 launches several steelies (10) into storage ball bucket (5)；
S2, the driving motor of starting cam (601), driving motor band moving cam (601) rotate, and bending plate (602) is in cam
(601) it and under the collective effect of spring (603), moves back and forth, realizes and blocked to going out the intermittent of bulb (502), bead (10)
Interval is fallen from going out bulb (502)；
S3 starts the rotary electric machine (301) of wire winding pole (302), and drawstring (304) is tightened or loosened to wire winding pole (302), drives No.1
Track (701) is rotated around No. two tracks (702), changes the gradient that bead (10) falls, and then changes the flat initial velocity thrown,
Change flat throwing track；
S4, bead (10) do level throw motion by the guiding of adjustable slope (7), receive baffle (804) blocking, fall and slided in rollback
On road (802), and fall into U-shaped piston cylinder (901) right stabilizer blade；
S5, bead (10) constantly enter the right stabilizer blade of piston cylinder, and the piston plate (903) for pushing down right stabilizer blade moves down, due to stress balance,
Piston cylinder liquid (904) is mobile, and the piston plate (903) of right stabilizer blade moves up；
The piston plate (903) of S6, right stabilizer blade gradually move up, and lower metal derby (906) contacts with upper metal derby (401), and contact is opened
It closes and closes, to which indicator light (4) lights；
S7 closes the driving motor of cam (601) and the rotary electric machine (301) of wire winding pole (302), completes demonstration.
10. teaching method according to claim 9, which is characterized in that S2, S3 step are interchangeable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004094.4A CN108735053A (en) | 2018-08-30 | 2018-08-30 | It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004094.4A CN108735053A (en) | 2018-08-30 | 2018-08-30 | It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method |
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| CN109410714A (en) * | 2018-11-29 | 2019-03-01 | 杨卓儒 | A kind of physical teaching aid |
| CN109615987A (en) * | 2018-12-29 | 2019-04-12 | 邵佳坤 | A kind of flat throwing continuous experimental apparatus of high school physics |
| CN110428707A (en) * | 2019-07-31 | 2019-11-08 | 邱洵 | It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method |
| CN111402687A (en) * | 2020-03-26 | 2020-07-10 | 王学荣 | A multi-functional teaching aid for high school physics teaching demonstration |
| CN111627302A (en) * | 2020-07-06 | 2020-09-04 | 陈嘉禾 | Teaching experiment tool with multiple demonstration effects and use method |
| CN111710221A (en) * | 2020-07-06 | 2020-09-25 | 薛皓元 | All-in-one experimental teaching demonstration device and demonstration method |
| CN111739388A (en) * | 2020-07-06 | 2020-10-02 | 吴颖凯 | Experiment demonstration device capable of performing cross teaching |
| CN111933001A (en) * | 2020-08-31 | 2020-11-13 | 重庆水利电力职业技术学院 | Teaching presentation device for engineering mechanics |
| CN113393740A (en) * | 2021-05-28 | 2021-09-14 | 浙江大学 | Testing device for researching projectile motion under influence of rotating coordinate system |
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| CN109410714A (en) * | 2018-11-29 | 2019-03-01 | 杨卓儒 | A kind of physical teaching aid |
| CN109615987A (en) * | 2018-12-29 | 2019-04-12 | 邵佳坤 | A kind of flat throwing continuous experimental apparatus of high school physics |
| CN110428707B (en) * | 2019-07-31 | 2021-08-03 | 南京咪小多文化科技有限公司 | Physical teaching aid capable of cross teaching demonstration and teaching method |
| CN110428707A (en) * | 2019-07-31 | 2019-11-08 | 邱洵 | It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method |
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| CN111710221A (en) * | 2020-07-06 | 2020-09-25 | 薛皓元 | All-in-one experimental teaching demonstration device and demonstration method |
| CN111739388A (en) * | 2020-07-06 | 2020-10-02 | 吴颖凯 | Experiment demonstration device capable of performing cross teaching |
| CN111627302A (en) * | 2020-07-06 | 2020-09-04 | 陈嘉禾 | Teaching experiment tool with multiple demonstration effects and use method |
| CN111933001A (en) * | 2020-08-31 | 2020-11-13 | 重庆水利电力职业技术学院 | Teaching presentation device for engineering mechanics |
| CN111933001B (en) * | 2020-08-31 | 2021-04-02 | 重庆水利电力职业技术学院 | Teaching presentation device for engineering mechanics |
| CN113393740A (en) * | 2021-05-28 | 2021-09-14 | 浙江大学 | Testing device for researching projectile motion under influence of rotating coordinate system |
| CN113393740B (en) * | 2021-05-28 | 2022-04-26 | 浙江大学 | Testing device for researching projectile motion under influence of rotating coordinate system |
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