CN107665621A - A kind of three-view diagram device for high school mathematicses - Google Patents
A kind of three-view diagram device for high school mathematicses Download PDFInfo
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- CN107665621A CN107665621A CN201711117024.5A CN201711117024A CN107665621A CN 107665621 A CN107665621 A CN 107665621A CN 201711117024 A CN201711117024 A CN 201711117024A CN 107665621 A CN107665621 A CN 107665621A
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- main body
- controlling switch
- electric expansion
- expansion bar
- integrated controlling
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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
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
- G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
Abstract
A kind of three-view diagram device for high school mathematicses, including main body 1, main body 2, base 3, support frame 107, wherein the main body 1 is square casing, inside is cavity, the front of the main body 1, left surface, the glass that top surface is coating, the back side, right flank, the bottom surface of the main body 1 are the transparent materials with LED plane light source；The main body 2 is cuboid, and inside is cavity, and the inside of main body 2 includes motor, gear train, power transmission shaft, angular transducer；The base 3 is rectangular box, and inside is chamber.It is unclear on three-view diagram explanation that the present invention effectively solves the problems, such as that teacher runs into during instructing student, greatly improve the quality of instruction and efficiency of teaching of teacher, student is improved for the understanding of different shapes under three-view diagram different angle, interest of the student for study is improved, is taught through lively activities.
Description
Technical field
The present invention relates to a kind of instructional device, more particularly to a kind of three-view diagram device for high school mathematicses.
Background technology
Three-view diagram be observer from above, the left side, from positive three different angles same space geometric from and draw
Figure.The sight of people is defined as parallel projection line, object is then faced and looks over, the profile of finding object is thrown with positive
The figure that shadow method is drawn out is referred to as view.One object has six views：Regarding for gained is rearwards projected before object
Figure claims front view（Front view）--- the preceding shapes of object can be reflected, claimed above object to the view obtained by following projection
Top view --- shape above object can be reflected, the view of projection gained claims left view from the left side of object to the right side（Side view
Figure）--- the left side shape of object can be reflected, also other three views are not in daily use.Three-view diagram is exactly front view（Face
Figure）, top view, left view（Side view）General name.Three-view diagram can correctly reflect the orthographic projection work of object length size
Cheng Tu（Front view, top view, three basic views of left view）For three-view diagram, this be engineering circles it is a kind of to geometry of objects about
Fixed custom into abstract expression mode.
Three-view diagram is senior middle school's compulsory course《Technology and design 1》Middle school student feel one of more difficult content.Often go out in teaching
Existing pupil drawing custom is bad, map field study when it is few, the conversion between space configuration and planar graph is had any problem, and in study
The problem of appearance and mode of learning etc..Being given birth into primitive Neo-Confucianism for three-view diagram be not strange, and student has contacted in Mathematics Curriculum,
Understand three-view diagram method for drafting.But student do not notice the three-view diagram of three-view diagram in mathematics and technical language have compared with
Big difference.Three-view diagram is mainly figure obtained by training of students from three azimuthal projection space configurations in mathematics, helps student's reason
Solution space structure and position relationship.Three-view diagram in technology " language " has many codes and standards sides as a kind of technical language
The content in face, it is designer's design of expression thought and the one kind " language " for exchanging works information.Although the same into primitive reason,
It is that three-view diagram teaching in mathematics does not rise to the height of " language ", that is to say, that three-view diagram is as a kind of work for expressing exchange
Tool, student do not know.Student's ratio is more random when three-view diagram is drawn such as in mathematics, is less particular about specification.
It is relatively conventional in existing teaching three-view diagram method, it is teacher station at dais, multiaspect is lifted in a manner of hand-held
Body Model, such as triangular pyramids, when teacher lifts Rhizoma Sparganii cone, and the front view of Rhizoma Sparganii cone is shown to student, rectangle faces
Student Teachers, during corner angle alignment student because the seat that student sits is different, the shape seen be it is different, what right opposite was seen
For rectangle, its length of side is the length of side of Rhizoma Sparganii cone, but the rectangle length of side seen of both sides student is less than the triangular pyramid length of side,
When teacher shows the side view of Rhizoma Sparganii cone, the rectangle length of side that right opposite student is seen is the triangle of Rhizoma Sparganii cone
Height, but the rectangle length of side that both sides student sees is but high more than the triangle of Rhizoma Sparganii cone, and because because learning when showing
Raw seat is far and near different, it is impossible to intuitively it was observed that the specific difference of the so-called length of side described in teacher, causes to misread；This method
The learning initiative of student is greatly reduced, it is serious to even result in student and have a repugnance to learning three-view diagram, made for later teaching
Into serious consequence, and this method significantly increases the teaching difficulty of teacher, or even has influence on teaching process.
The content of the invention
For case above, it is low that the present invention solves teachers ' teaching efficiency, consumes one's strength serious, students ' enthusiasm
It is not high, or even the problem of being weary of the course for learning three-view diagram is produced, the efficiency of teaching of teacher is greatly improved, improves student
Learning initiative, teach through lively activities, found in study it is happy, in happy mood learning.
A kind of three-view diagram device for high school mathematicses, including：Main body 1, main body 2, base 3, wherein support frame 107, institute
It is square casing to state main body 1, and inside is cavity, and the front 103 of the main body 1, left surface 102, top surface 101 are coating
Glass, the back side 104, right flank 105, the bottom surface 106 of the main body 1 are the transparent materials with LED plane light source.
The main body 2 is rectangular box, and inside is cavity, the inside of the main body 2 include motor 203, gear train 202,
Power transmission shaft 204；The base 3 is rectangular box, and inside is chamber.
The back side of base 3 is provided with integrated controlling switch 301, and the back side of base 3 is provided with external power interface
302, the top surface of base 3 is provided with yielding rubber, includes in the cavity of base 3：Built-in power 305, electric expansion bar group
304；Reflective mirror 109 is installed on the top surface 101 of the main body 1, the top surface 101 is connected with reflective surface 109 by bearing pin, and
Motor 108 is installed, motor 108 is electrically connected with integrated controlling switch 301, and receives the control of integrated controlling switch 301, control
Reflective surface 109 processed is connected side with reflective surface 109 along top surface 101 and rotates 0 ° to 45 °.
The back side 104 of the main body 1, right flank 105, the LED plane light source of bottom surface 106 are electrically connected to the integrated control
System switch 301, and receive the control of integrated controlling switch 301.
Motor 203 inside the main body 2 is electrically connected with the integrated controlling switch 301, and is received integrated control and opened
Close 301 control；The gear train 202 is mechanically connected with motor 203, and the gear train 202 is connected with power transmission shaft 204.
The integrated controlling switch 301 is electrically connected with external power interface 302, the integrated controlling switch 301 with it is interior
Put power supply 305 to be electrically connected with, and charged by control circuit to built-in power 305, the integrated controlling switch 301 is stretched with electronic
Contracting bar group 304 is electrically connected with, and controls the motion of the electric expansion bar group 304, the integrated controlling switch 301 and the branch
Support 107 is electrically connected with, and controls the motion of support frame as described above 107；The bottom of electric expansion bar group 304 is fixedly connected on institute
The tie point of the internal cavity of base 3 is stated, company is fixed in the bottom that the top of electric expansion bar group 304 is fixedly connected with the main body 2
Contact.
Preferably, support frame 107 is two symmetrical vertically-mounted electric expansion bars 1071 and 1072, the electric expansion
The top of bar 1071 and the top of electric expansion bar 1072 carry pallet, electric expansion bar 1071 and electric expansion bar 1072 bottom
For six prismatics, the electric expansion bar 1072 is fixedly mounted on the center of top 101 of the main body 1, connected by roller bearing；It is described
The bottom of electric expansion bar 1071 is arranged on the power transmission shaft 204 by inserting, and the power transmission shaft 204 and the electric expansion
Pressure sensor 205 is carried between the bottom of bar 1071, the pressure sensor 205 is electrically connected with integrated controlling switch 301, collection
Receive the signal of the pressure sensor 205 into controlling switch 301.
Preferably, the front 103 of the main body 1, left surface 102, top surface 101 be coating glass, and it is described just
The glass of the coating of face 103 is carried using positive 103 centers as the coordinate system of origin, the glass of the coating of left surface 102
Glass is carried with top surface 101 with the coordinate system using the center of left surface 102 as origin, the glass of the coating of top surface 101
The heart is the coordinate system of origin.
Preferably, the front 103 of the main body 1, left surface 102, top surface 101 respectively set for the both sides of the glass of coating
There is the power supply patch line 110 of two corresponding both positive and negative polarities, the power supply patch line 110 is electrically connected with the integrated controlling switch 301, and
Connected with micro-current monitoring sensor 111, be illustrated in figure 6 micro-current monitoring sensor 111, the collection of one of them
Into controlling switch 301 and the connection of power supply patch line；The integrated controlling switch 301 receives micro-current monitoring sensor 111
Signal and processing；Inner photoeffect is to be optically excited caused carrier（Free electron or hole）Still transported inside material
It is dynamic, the electrical conductivity of material is changed or produce the phenomenon of photogenic voltage, so the signal difference obtained by monitoring sensor,
By integrating processing and the calculating of controlling switch, cast shadow area is obtained.
Preferably, the gear train 202 of the main body 2, including：Gear 2023, gear 2025, gear 2026, cylindrical worm
Transmission 2022, cylindrical worm gearing transmission 2024, angle monitor sensor 2021；The angle monitor sensor 2021 integrates with described
Controlling switch 301 is electrically connected with, and the integrated controlling switch 301 is electrically connected with the signal of accepts angle monitoring sensor 2021 simultaneously
Processing；The gear 2023 is fixedly connected with the motor 203, and the gear 2025 is fixedly connected with connecting shaft 204.
Preferably, the electric expansion bar group 304 is 4 electric expansion bars of model identical, the electric expansion bar band
There is trip counter, the trip counter is electrical connected with the integrated controlling switch 301, the integrated controlling switch 301
Receive the signal of the trip counter and processing；The electric expansion bar group 304 is symmetrically mounted on the bottom of main body 2 and institute
State in the cavity of base 3；The yielding rubber carries makes the electric expansion with the 304 corresponding Kong Bingneng of electric expansion bar group
The electric expansion bar of bar group 304 freely passes through.
Preferably, the back side 106 of the main body 1 and right flank 105 are provided with group of motors 1061, the group of motors 1061 with
The integrated controlling switch 301 is electrically connected with, and the control for receiving the integrated controlling switch 301 carries out folding.
Preferably, support frame as described above 107 has two kinds of selections, and a kind of is that two symmetrical vertically-mounted moved ends are provided with pallet
Electric expansion bar group, for fixing less asymmetric polyhedron or less symmetrical polyhedron.
The structure of support frame 107 in another embodiment of the present invention be it is a kind of be thin straight six prisms of six prismatics and described
Support frame 107 is with the graduation mark using center as origin, for the fixed pore size carried through central point and six rib
The consistent teaching mode polyhedron of post, six prism carries lockset, for fixing polyhedral position.
Brief description of the drawings
Fig. 1 is the actual effect figure and exploded view of the present invention.
Fig. 2 is six face appearance figures of the main body 1 of the present invention.
Fig. 3 is the support bar installation site figure of the present invention.
Fig. 4 is the installation diagram of the top surface reflective mirror of the present invention.
Fig. 5 is the installation site figure of the power supply paster of the present invention.
Fig. 6 is that the power supply paster of the present invention and micro-current monitor sensor, the annexation of integrated controlling switch.
Fig. 7 is the two ways and cross-sectional shapes of the support bar of the present invention.
Fig. 8 is the mounting position of motor of the back side folding control of the main body 1 of the present invention.
Fig. 9 is the structural representation of the main body 2 of the present invention.
Figure 10 is the structural representation of the tumbler of the present invention.
Figure 11 is the power transmission shaft top view of the present invention.
Figure 12 is the rearview of the base 3 of the present invention.
Figure 13 is the schematic view of the mounting position of the electric expansion bar group of the present invention.
Figure 14 is the panel structure chart of the integrated controlling switch of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment one.
A kind of three-view diagram device for high school mathematicses, including：Main body 1, main body 2, base 3, wherein support frame 107, institute
It is square casing to state main body 1, and inside is cavity, and the front 103 of the main body 1, left surface 102, top surface 101 are coating
Glass, the back side 104, right flank 105, the bottom surface 106 of the main body 1 are the transparent materials with LED plane light source；It is described
Main body 2 is rectangular box, and inside is cavity, and the inside of main body 2 includes motor 203, gear train 202, power transmission shaft 204；Institute
It is rectangular box to state base 3, and inside is chamber, and the back side of base 3 is provided with integrated controlling switch 301, and the base 3 is carried on the back
Face is provided with external power interface 302, and the top surface of base 3 is provided with yielding rubber, included in the cavity of base 3：It is built-in
Power supply 305, electric expansion bar group 304；Reflective mirror 109 is installed on the top surface 101 of the main body 1, the top surface 101 with it is reflective
Face 109 is connected by bearing pin, and is provided with motor 108, and motor 108 is electrically connected with integrated controlling switch 301, and is received integrated
The control of controlling switch 301, control reflective surface 109 are connected side with reflective surface 109 along top surface 101 and rotate 0 ° to 45 °；The main body
1 back side 104, right flank 105, the LED plane light source of bottom surface 106 are electrically connected to the integrated controlling switch 301, and received
The control of integrated controlling switch 301；Motor 203 inside the main body 2 is electrically connected with the integrated controlling switch 301, and
Receive the control of integrated controlling switch 301；The gear train 202 is mechanically connected with motor 203, and the gear train 202 is with passing
Moving axis 204 connects；The integrated controlling switch 301 is electrically connected with external power interface 302, the integrated controlling switch 301
It is electrically connected with built-in power 305, and is charged by control circuit to built-in power 305, the integrated controlling switch 301 and electricity
Dynamic expansion link group 304 is electrically connected with, and controls the motion of the electric expansion bar group 304, the integrated controlling switch 301 and institute
State support frame 107 to be electrically connected with, and control the motion of support frame as described above 107；The bottom of electric expansion bar group 304 is fixedly connected
In the tie point of the internal cavity of base 3, the bottom that the top of electric expansion bar group 304 is fixedly connected with the main body 2 is consolidated
Determine tie point.
Support frame 107 is two symmetrical vertically-mounted electric expansion bars 1071 and 1072, the electric expansion bar 1071
Top and the top of electric expansion bar 1072 carry pallet, and electric expansion bar 1071 and electric expansion bar 1072 bottom is six ribs
Shape, the electric expansion bar 1072 are fixedly mounted on the center of top 101 of the main body 1, connected by roller bearing；It is described electronic to stretch
The bottom of contracting bar 1071 is arranged on the power transmission shaft 204 by inserting, and the power transmission shaft 204 and the electric expansion bar 1071
Pressure sensor 205 is carried between bottom, the pressure sensor 205 is electrically connected with integrated controlling switch 301, integrates control
Switch 301 receives the signal of the pressure sensor 205.
The front 103 of the main body 1, left surface 102, the glass that top surface 101 is coating, and positive 103 band
Cated glass carries the coordinate system using positive 103 centers as origin, the glass of the coating of left surface 102 carry with
The center of left surface 102 is the coordinate system of origin, and the glass of the coating of top surface 101 is carried using the center of top surface 101 as origin
Coordinate system.
The front 103 of the main body 1, left surface 102, top surface 101 are respectively provided with two for the both sides of the glass of coating
The power supply patch line 110 of corresponding both positive and negative polarity, the power supply patch line 110 are electrically connected with the integrated controlling switch 301, and with micro- electricity
Stream monitoring sensor 111 is connected, and is illustrated in figure 6 the micro-current monitoring sensor 111 of one of them, the integrated control
The connection of switch 301 and power supply patch line；The integrated controlling switch 301 receives the signal of micro-current monitoring sensor 111
And handle；Inner photoeffect is to be optically excited caused carrier（Free electron or hole）Still in material internal motion, make
The electrical conductivity of material changes or produced the phenomenon of photogenic voltage, so the signal difference obtained by monitoring sensor, passes through
The processing and calculating of integrated controlling switch, obtain cast shadow area.
The gear train 202 of the main body 2, including：Gear 2023, gear 2025, gear 2026, cylindrical worm gearing transmission
2022, cylindrical worm gearing transmission 2024, angle monitor sensor 2021；The angle monitor sensor 2021 and the integrated control
Switch 301 is electrically connected with, and the integrated controlling switch 301 is electrically connected with the signal of accepts angle monitoring sensor 2021 and place
Reason；The gear 2023 is fixedly connected with the motor 203, and the gear 2025 is fixedly connected with connecting shaft 204.
Preferably, the electric expansion bar group 304 is 4 electric expansion bars of model identical, the electric expansion bar band
There is trip counter, the trip counter is electrical connected with the integrated controlling switch 301, the integrated controlling switch 301
Receive the signal of the trip counter and processing；The electric expansion bar group 304 is symmetrically mounted on the bottom of main body 2 and institute
State in the cavity of base 3；The yielding rubber carries makes the electric expansion with the 304 corresponding Kong Bingneng of electric expansion bar group
The electric expansion bar of bar group 304 freely passes through.
The back side 106 of the main body 1 is provided with group of motors 1061, the group of motors 1061 and the collection with right flank 105
It is electrically connected with into controlling switch 301, and the control for receiving the integrated controlling switch 301 carries out folding.
Support frame as described above 107 has two kinds of selections, and a kind of is that two symmetrical vertically-mounted moved ends are provided with the electronic of pallet
Expansion link group, for fixing less asymmetric polyhedron or less symmetrical polyhedron.
A kind of application of three-view diagram device, comprises the following steps：Step（1）, adjust the spacing between support bar, it would be desirable to
The polyhedron of explanation is placed among the pallet of support bar, controls integrated controlling switch to clamp polyhedron, pressure sensor is real-time
Transmission signal to integrated controlling switch, automatically powered off when reaching quota pressure；Step（2）, control integrated controlling switch to close
The back side of main body 1, self-locking is reached by the self-locking motor of the installation at the back side, at this moment back side plane is hung down mutually with the four sides being in contact
Directly, it is parallel with front；Step（3）, put down by the LED of the back side of integrated controlling switch opening three-view diagram device, right flank, bottom surface
Area source；Step（4）, integrated controlling switch raised body 1, main body 2 are controlled, makes student rearward same it is observed that main body 1；
Step（5）, control integrated controlling switch to open reflective surface 109, student is observed that the projection of top surface.
Now, student can intuitively specifically observe polyhedric projection to front, left surface, top surface three differences
Shade, and recognize projected shade by reading the numeral of coordinate system, pass through the display read in integrated controlling switch
Reading on screen can intuitively measure shaded area；Teacher is by controlling integrated controlling switch polygonal, by integrated
Reading in controlling switch controls polyhedral number of rotation, and now, student can be observed because the anglec of rotation with clear and intuitive
Degree is different, and the top surface of the main body 1, front, the projection of shape of left surface are different, and the length of side data of projection are also different, throw
The real-time shadow area of shadow also changes.Meanwhile also may be selected one and operate the invention device individually or together to several students,
It more can intuitively experience the change of three-view diagram and the shaping of three-view diagram.By apparatus of the present invention, student can be effectively improved
Learning interest, improve the learning efficiency of student, while improve the efficiency of teaching of teacher, save the muscle power of teacher, energy
Preferably teaching student.
Embodiment two.
A kind of three-view diagram device for high school mathematicses, including：Main body 1, main body 2, base 3, wherein support frame 107, institute
It is square casing to state main body 1, and inside is cavity, and the front 103 of the main body 1, left surface 102, top surface 101 are coating
Glass, the back side 104, right flank 105, the bottom surface 106 of the main body 1 are the transparent materials with LED plane light source；It is described
Main body 2 is rectangular box, and inside is cavity, and the inside of main body 2 includes motor 203, gear train 202, power transmission shaft 204；Institute
It is rectangular box to state base 3, and inside is chamber, and the back side of base 3 is provided with integrated controlling switch 301, and the base 3 is carried on the back
Face is provided with external power interface 302, and the top surface of base 3 is provided with yielding rubber, included in the cavity of base 3：It is built-in
Power supply 305, electric expansion bar group 304；Reflective mirror 109 is installed on the top surface 101 of the main body 1, the top surface 101 with it is reflective
Face 109 is connected by bearing pin, and is provided with motor 108, and motor 108 is electrically connected with integrated controlling switch 301, and is received integrated
The control of controlling switch 301, control reflective surface 109 are connected side with reflective surface 109 along top surface 101 and rotate 0 ° to 45 °；The main body
1 back side 104, right flank 105, the LED plane light source of bottom surface 106 are electrically connected to the integrated controlling switch 301, and received
The control of integrated controlling switch 301；Motor 203 inside the main body 2 is electrically connected with the integrated controlling switch 301, and
Receive the control of integrated controlling switch 301；The gear train 202 is mechanically connected with motor 203, and the gear train 202 is with passing
Moving axis 204 connects；The integrated controlling switch 301 is electrically connected with external power interface 302, the integrated controlling switch 301
It is electrically connected with built-in power 305, and is charged by control circuit to built-in power 305, the integrated controlling switch 301 and electricity
Dynamic expansion link group 304 is electrically connected with, and controls the motion of the electric expansion bar group 304, the bottom of electric expansion bar group 304
The tie point of the internal cavity of base 3 is fixedly connected on, the top of electric expansion bar group 304 is fixedly connected with the main body 2
Bottom fixed connection point.
Support frame 107 is thin straight six prism of six prismatics, and support frame as described above 107 is with the scale using center as origin
Line, carried for fixed through the pore size of the central point teaching mode polyhedron consistent with six prism, six rib
Post carries lockset, for fixing polyhedral position.
The front 103 of the main body 1, left surface 102, the glass that top surface 101 is coating, and positive 103 band
Cated glass carries the coordinate system using positive 103 centers as origin, the glass of the coating of left surface 102 carry with
The center of left surface 102 is the coordinate system of origin, and the glass of the coating of top surface 101 is carried using the center of top surface 101 as origin
Coordinate system.
The front 103 of the main body 1, left surface 102, top surface 101 are respectively provided with two for the both sides of the glass of coating
The power supply patch line 110 of corresponding both positive and negative polarity, the power supply patch line 110 are electrically connected with the integrated controlling switch 301, and with micro- electricity
Stream monitoring sensor 111 is connected, and is illustrated in figure 6 the micro-current monitoring sensor 111 of one of them, the integrated control
The connection of switch 301 and power supply patch line；The integrated controlling switch 301 receives the signal of micro-current monitoring sensor 111
And handle；Inner photoeffect is to be optically excited caused carrier（Free electron or hole）Still in material internal motion, make
The electrical conductivity of material changes or produced the phenomenon of photogenic voltage, so the signal difference obtained by monitoring sensor, passes through
The processing and calculating of integrated controlling switch, obtain cast shadow area.
The gear train 202 of the main body 2, including：Gear 2023, gear 2025, gear 2026, cylindrical worm gearing transmission
2022, cylindrical worm gearing transmission 2024, angle monitor sensor 2021；The angle monitor sensor 2021 and the integrated control
Switch 301 is electrically connected with, and the integrated controlling switch 301 is electrically connected with the signal of accepts angle monitoring sensor 2021 and place
Reason；The gear 2023 is fixedly connected with the motor 203, and the gear 2025 is fixedly connected with connecting shaft 204.
Preferably, the electric expansion bar group 304 is 4 electric expansion bars of model identical, the electric expansion bar band
There is trip counter, the trip counter is electrical connected with the integrated controlling switch 301, the integrated controlling switch 301
Receive the signal of the trip counter and processing；The electric expansion bar group 304 is symmetrically mounted on the bottom of main body 2 and institute
State in the cavity of base 3；The yielding rubber carries makes the electric expansion with the 304 corresponding Kong Bingneng of electric expansion bar group
The electric expansion bar of bar group 304 freely passes through.
The back side 106 of the main body 1 is provided with group of motors 1061, the group of motors 1061 and the collection with right flank 105
It is electrically connected with into controlling switch 301, and the control for receiving the integrated controlling switch 301 carries out folding.
In use, a kind of application of three-view diagram device, comprises the following steps：Step（1）, teacher is by controlling integrated control
Switch opens the back side of three-view diagram device, and support bar 107 is being propped up through the polyhedral center for needing to explain, observation polyhedron
Scale reading and two readings of holding on strut 107 is consistent；Step（2）, support bar is installed on power transmission shaft 204；Step
（3）, control integrated controlling switch to close the back side of main body 1, self-locking reached by the self-locking motor of the installation at the back side, at this moment the back side
Plane and the four sides being in contact are orthogonal, parallel with front；Step（4）, the back side, right side are opened by integrated controlling switch
Face, the LED plane light source of bottom surface；Step（5）, integrated controlling switch raised body 1, main body 2 are controlled, makes student rearward same
It is observed that main body 1；Step（6）, control integrated controlling switch to open reflective surface 109, student is observed that the throwing of top surface
Shadow.
Now, student can intuitively specifically observe polyhedric projection to front, left surface, top surface three differences
Shade, and recognize projected shade by reading the numeral of coordinate system, pass through the display read in integrated controlling switch
Reading on screen can intuitively measure shaded area；Teacher is by controlling integrated controlling switch polygonal, by integrated
Reading in controlling switch controls polyhedral number of rotation, and now, student can be observed because the anglec of rotation with clear and intuitive
Degree is different, and the top surface of the main body 1, front, the projection of shape of left surface are different, and the length of side data of projection are also different, throw
The real-time shadow area of shadow also changes.Meanwhile also may be selected one and operate the invention device individually or together to several students,
It more can intuitively experience the change of three-view diagram and the shaping of three-view diagram.By apparatus of the present invention, student can be effectively improved
Learning interest, improve the learning efficiency of student, while improve the efficiency of teaching of teacher, save the muscle power of teacher, energy
Preferably teaching student.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
- A kind of 1. three-view diagram device for high school mathematicses, it is characterised in that including：Main body 1, main body 2, base 3, support frame 107；The main body 1 is square casing, and inside is cavity, and the front 103 of the main body 1, left surface 102, top surface 101 are band Cated glass, the back side 104, right flank 105, the bottom surface 106 of the main body 1 are the opaque material with LED plane light source Matter；The main body 2 is rectangular box, and inside is cavity, and the inside of main body 2 includes motor 203, gear train 202, power transmission shaft 204；The base 3 is rectangular box, and inside is chamber.
- A kind of 2. three-view diagram device for high school mathematicses as claimed in claim 1, it is characterised in that the back side of base 3 Integrated controlling switch 301 is installed, the back side of base 3 is provided with external power interface 302, and the top surface of base 3 is provided with Yielding rubber, include in the cavity of base 3：Built-in power 305, electric expansion bar group 304.
- A kind of 3. three-view diagram device for high school mathematicses as claimed in claim 2, it is characterised in that the top of the main body 1 Reflective mirror 109 is installed, the top surface 101 is connected with reflective surface 109 by bearing pin, and is provided with motor 108, electricity on face 101 Machine 108 is electrically connected with integrated controlling switch 301, and receives the control of integrated controlling switch 301, controls reflective surface 109 along top Face 101 is connected side with reflective surface 109 and rotates 0 ° to 45 °；The back side 104 of the main body 1, right flank 105, the LED of bottom surface 106 are put down Area source is electrically connected to the integrated controlling switch 301, and receives the control of integrated controlling switch 301.
- 4. a kind of three-view diagram device for high school mathematicses as claimed in claim 3, it is characterised in that inside the main body 2 Motor 203 be electrically connected with the integrated controlling switch 301, and receive the control of integrated controlling switch 301；The gear train 202 are mechanically connected with motor 203, and the gear train 202 is connected with power transmission shaft 204；The integrated controlling switch 301 with it is external Power interface 302 is electrically connected with, and the integrated controlling switch 301 is electrically connected with built-in power 305, and is given by control circuit Built-in power 305 is charged, and the integrated controlling switch 301 is electrically connected with electric expansion bar group 304, and controls described electronic stretch The motion of contracting bar group 304, the integrated controlling switch 301 is electrically connected with support frame as described above 107, and controls support frame as described above 107 motion；The bottom of electric expansion bar group 304 is fixedly connected on the tie point of the internal cavity of base 3, described electronic The top of expansion link group 304 is fixedly connected with the bottom fixed connection point of the main body 2.
- 5. a kind of three-view diagram device for high school mathematicses as claimed in claim 4, it is characterised in that support frame 107 is two Individual symmetrical vertically-mounted electric expansion bar 1071 and 1072, the top of electric expansion bar 1071 and electric expansion bar 1072 are pushed up Portion carries pallet, and electric expansion bar 1071 and electric expansion bar 1072 bottom is six prismatics, the electric expansion bar 1072 The center of top 101 of the main body 1 is fixedly mounted on, is connected by roller bearing；The bottom of electric expansion bar 1071 is by inserting On the power transmission shaft 204, and pressure sensing is carried between the power transmission shaft 204 and the bottom of the electric expansion bar 1071 Device 205, the pressure sensor 205 are electrically connected with integrated controlling switch 301, and integrated controlling switch 301 receives the pressure The signal of sensor 205.
- A kind of 6. three-view diagram device for high school mathematicses as claimed in claim 4, it is characterised in that the front of main body 1 103rd, left surface 102, the glass that top surface 101 is coating, and the glass of positive 103 coating is carried with front 103 centers are the coordinate system of origin, and the glass of the coating of left surface 102 is carried using the center of left surface 102 as origin Coordinate system, the glass of the coating of top surface 101 is with the coordinate system using the center of top surface 101 as origin.
- A kind of 7. three-view diagram device for high school mathematicses as claimed in claim 4, it is characterised in that the front of main body 1 103rd, left surface 102, top surface 101 are provided with the power supply patch line 110 of two corresponding both positive and negative polarities, institute for the both sides of the glass of coating State power supply patch line 110 to be electrically connected with the integrated controlling switch 301, and connected with micro-current monitoring sensor 111, the collection Receive signal and the processing of micro-current monitoring sensor 111 into controlling switch 301, obtain cast shadow area.
- A kind of 8. three-view diagram device for high school mathematicses as claimed in claim 4, it is characterised in that the gear train of main body 2 202, including：Gear 2023, gear 2025, gear 2026, cylindrical worm gearing transmission 2022, cylindrical worm gearing transmission 2024, angle prison Survey sensor 2021；The angle monitor sensor 2021 is electrically connected with the integrated controlling switch 301, the integrated control Switch 301 is electrically connected with the signal of accepts angle monitoring sensor 2021 and processing；The gear 2023 is solid with the motor 203 Fixed connection, the gear 2025 are fixedly connected with connecting shaft 204.
- A kind of 9. three-view diagram device for high school mathematicses as claimed in claim 4, it is characterised in that electric expansion bar group 304 be 4 electric expansion bars of model identical, and the electric expansion bar carries trip counter, the trip counter and institute State integrated controlling switch 301 to be electrical connected, the integrated controlling switch 301 receives signal and the processing of the trip counter； The electric expansion bar group 304 is symmetrically mounted in the bottom of main body 2 and the cavity of base 3；Yielding rubber carries and institute Kong Bingneng corresponding to stating electric expansion bar group 304 makes the electric expansion bar of the electric expansion bar group 304 freely pass through；Main body 1 back side 106 is provided with group of motors 1061 with right flank 105, and the group of motors 1061 and the integrated controlling switch 301 are electrical Connection, and the control for receiving the integrated controlling switch 301 carries out folding.
- 10. a kind of three-view diagram device for high school mathematicses as claimed in claim 4, it is characterised in that support frame 107 is six Thin straight six prism of prismatic, and support frame as described above 107 is carried in the graduation mark using center as origin for fixed The pore size of the heart point teaching mode polyhedron consistent with six prism, six prism carry lockset, more for fixation The position of face body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711117024.5A CN107665621B (en) | 2017-11-13 | 2017-11-13 | Three-view device for high school mathematics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711117024.5A CN107665621B (en) | 2017-11-13 | 2017-11-13 | Three-view device for high school mathematics |
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| CN107665621A true CN107665621A (en) | 2018-02-06 |
| CN107665621B CN107665621B (en) | 2020-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903650A (en) * | 2019-04-18 | 2019-06-18 | 南珂怡 | A kind of three-view diagram school mathematics learning aid |
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| CN201126649Y (en) * | 2007-12-04 | 2008-10-01 | 李卓 | Mathematics combined teaching-aid cube |
| CN201868003U (en) * | 2010-11-13 | 2011-06-15 | 侯贻新 | Solid geometry projection box |
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| CN107665621B (en) | 2020-12-22 |
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