CN103794116A - Teaching aid for three views - Google Patents
Teaching aid for three views Download PDFInfo
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- CN103794116A CN103794116A CN201410086194.1A CN201410086194A CN103794116A CN 103794116 A CN103794116 A CN 103794116A CN 201410086194 A CN201410086194 A CN 201410086194A CN 103794116 A CN103794116 A CN 103794116A
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Abstract
The invention relates to a teaching aid for three views. The teaching aid for the three views is portable, rich in function and good in accuracy. According to the technical scheme, a front plate, a side plate and a horizontal plate are quadrangles equal in dimension, the edges of the quadrangles are 170+/-10 mm, a tool for theoretical study is arranged on the front face of the teaching aid, a living example material tool is arranged on the reverse face of the teaching aid, corresponding axis dimension marks with dimension lines, dimension figures and axis names are arranged on the faces respectively, view shortened form marks are arranged in the middles of three front faces respectively, relative position marks are arranged on the upper portion , the lower portion, the left portion and the right portion of each view shortened form mark respectively, three views of a part are arranged on three rear faces, three views of a point are arranged on the three rear faces, and each point is marked. The teaching aid is suitable for classroom teaching of a teacher, suitable for self-study of students, suitable for three-view teaching of colleges and universities and suitable for three-view teaching of middle schools.
Description
Technical field
The present invention relates to a kind of teaching tool, particularly a kind of Three-views teaching aid.
Background technology
" mechanical drawing " is the important Major Basic Courses Offered of Engineering Students, in engineering science, particularly in the System for Cultivating of mechanical engineering science, occupy critical role, and the whole basis of " mechanical drawing " and foundation are exactly three-view diagram, principle and the reading method of understanding and grasp three-view diagram are most important to learning mechanical drawing well, three-view diagram is the emphasis of " mechanical drawing " course, also be difficult point, many students are in the time acquiring this part, just as having run into difficulty, come to a halt, and three-view diagram is obstructed, all the other course contents have also just more been had no way of doing it, some students are because three-view diagram be can not learn, the generation mood of being weary of studying, and then abandon learning, now that axonometric drawing and the three-view diagram that draws respectively part on two-dimentional blackboard surface explained with teacher to the teaching method of three-view diagram, not only teacher's complexity of mapping, and due to directly perceived not, or some teachers show the axonometric drawing of part and three-view diagram to explain with PPT, also directly perceived not, progress is very fast, student does not start the chance of practice and thought, the Students ' Learning understanding effect that gets up is undesirable, how concrete and abstract three-view diagram is displayed in mode the most intuitively, and guiding student goes to observe, go to understand, just become each drawing teaching conscientious or researchist's research emphasis.
There are part drawing teaching or researchist to make effort, China Patent No. is: 200820039571.6 utility model patent discloses a kind of Three-view projection teaching aid, form by base plate and two boards perpendicular to base plate are mutually vertical, three blocks of plates adopt chain connection, China Patent No. is: 200320129682.3 utility model patent discloses a kind of Three-views teaching aid, adopt certain thickness square plastic thin slice or white board, it is upper and lower to being divided into by each limit mid point, four the equal little squares in left and right, removing the little square in lower right need not, by another three little squares along to separated time doubling, three are vertically holded up, these two patents can form three mutually perpendicular spaces, be used for explaining demonstration three-view diagram principle, make simple and easy, easy to operate, for our drawing teaching contributes, but also there are some problems: 1, portable not, can not meet student and take out at any time in when study or the time of doing one's assignment the demand of studying or learning.2, insufficiency of function, has emphasized practice and has ignored the study of knowwhy, the content of courses of some three-view diagrams cannot therefrom be embodied or meet.3, accuracy is inadequate, is not easy to carry out teaching rigorous and that three-view diagram is drawn accurately.
Summary of the invention
The technical matters that the present invention solves is: provide a kind of portable, feature richness, Three-views teaching aid that accuracy is good for the problems referred to above.
The technical solution adopted in the present invention is: Three-views teaching aid, it comprises positive plate, be connected to the side plate on positive plate right side, be connected to the leveling board of positive plate downside, it is characterized in that: described positive plate, side plate and leveling board are the quadrilateral that the length of side that size is equal is 170 ± 10mm, theoretical main-vision surface is set before positive plate, after positive plate, arrange and put into practice main-vision surface, before side plate, a theoretical left side is set and looks face, face is overlooked in the practice that arranges below of side plate, above theory being set and overlooking face of leveling board, the arranging below of leveling board put into practice a left side and looked face.
The front and back of described positive plate and side plate, positive plate and leveling board junction all arranges impression.
Described theoretical main-vision surface below arranges respectively the X-axis size indication with dimension line, dimension figure and Spindle Name with the theoretical face top of overlooking, theory overlooks right side of face and a theoretical left side arranges respectively the Y-axis size indication with dimension line, dimension figure and Spindle Name depending on face downside, and theoretical main-vision surface right side and a theoretical left side arrange respectively the Z axis size indication with dimension line, dimension figure and Spindle Name depending on left side of face.
The centre position of described theoretical main-vision surface arranges main-vision surface abbreviation V sign, and a theoretical left side arranges left view depending on the centre position of face and is called for short W sign, and theory is overlooked the centre position setting of face and overlooked face abbreviation H sign.
Above described main-vision surface abbreviation V sign, below, the left side and the right side arrange respectively on V face relative position and indicate, under V face relative position, indicate, the left sign of V face relative position and the right sign of V face relative position, above left view abbreviation W sign, below, the left side and the right side arrange respectively on W face relative position and indicate, under W face relative position, indicate, after W face relative position, indicate and the front sign of W face relative position, overlook face be called for short H indicate above, below, the left side and the right side indicate after H face relative position is set respectively, before H face relative position, indicate, the left sign of H face relative position and the right sign of H face relative position.
Described put into practice that main-vision surface and practice overlook face depending on the corresponding same position of Z axis size indication on face, X-axis size indication is set with theoretical main-vision surface and a theoretical left side, put into practice main-vision surface, with the left corresponding same position of X-axis size indication of overlooking on face with theoretical main-vision surface and theory depending on face of practice, Z axis size indication being set, put into practice the left corresponding same position of Y-axis size indication of overlooking on face depending on face and theory with a theoretical left side depending on face of the face of overlooking and practice Y-axis size indication is set.
Describedly put into practice main-vision surface, face and left front view, vertical view and the left view that Same Part is set respectively depending on aligned position on face of practice are overlooked in practice, a that at vertical view, front view and left view same point on part is set respectively indicates, a ＇ indicates and a 〞 indicates.
The invention has the beneficial effects as follows: 1, positive plate of the present invention, side plate and leveling board are the quadrilateral that the length of side that size is equal is 170 ± 10mm, can be folded into a quadrilateral, just in time can be clipped in the teaching material of drawing study, facilitate student to take out at any time in when study or the time of doing one's assignment, study or learn.2, front of the present invention arranges the instrument of theory study, reverse side arranges example material instrument, on limited usable floor area, load abundant utility, can allow the knowwhy of students three-view diagram, there is again example for understanding, digest knowwhy, allow theory and practice mutually confirm and to consolidate, reach the effect that can draw inferences about other cases from one instance, digest.3, the corresponding dimension line that has is set respectively on each face of the present invention, the axis size indication of dimension figure and Spindle Name, no matter at stereoscopic-state or flat state, on each face, all can demonstrate corresponding axis size indication, accurately and intuitively reflect front view and the vertical view alignment relation on left and right directions, front and back of the present invention is had identical, accurately, the object of reference that position is fixing, allow front and back form associated accurately, situation when situation while making theory study and learning by doing has a fixing object of reference, can find out fast and accurately both contacts, theory and practice is confirmed mutually.4, three face centre positions above of the present invention arrange respectively view abbreviation sign, for indicating, relative position provides a benchmark, the abbreviation that also makes Students ' Learning grasp three views represents, view is called for short the upper and lower, left and right that indicate relative position sign is set respectively, the front view that student does is alignd with vertical view energy left and right directions, front view aligns with left view energy above-below direction, vertical view aligns with left view energy fore-and-aft direction, allows student firmly and easily learn the position relation between relative position relation and three views of each view.5, three faces below of the present invention are provided with the three-view diagram of a part, be provided with again the three-view diagram of a point, and each point is indicated, can make a part for student accurate, correct three-view diagram, can make again the three-view diagram of a point, the point in three-view diagram that can also be correct marks, avoid the student only can be theoretical and can not correctly put into practice, also avoid student only can draw the three-view diagram of one or two part and do not have theoretical direction can not draw inferences about other cases from one instance, can not draw the three-view diagram of other part, this arranges the knowwhy that can confirm three-view diagram, consolidate, grasp institute's theory knowledge, or reasoning rule and knowwhy, reach the effect of digesting.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view that face is overlooked in demonstration practice of the present invention.
Fig. 2 is the schematic perspective view that main-vision surface is put into practice in demonstration of the present invention.
Fig. 3 is the left schematic perspective view of looking face of demonstration practice of the present invention.
Fig. 4 is stereoscopic-state schematic diagram above of the present invention.
Fig. 5 is forward plane view of the present invention.
Fig. 6 is stereoscopic-state schematic diagram below of the present invention.
Fig. 7 is backward plane view of the present invention.
Fig. 8 is half deployed condition schematic diagram of the present invention.
Fig. 9 is folded state schematic diagram of the present invention.
Embodiment
As shown in Figure 1 to Figure 3, the present embodiment comprises positive plate 1, be connected to the side plate 2 on positive plate 1 right side, be connected to the leveling board 3 of positive plate 1 downside, it is characterized in that: described positive plate 1, the quadrilateral that side plate 2 and leveling board 3 are 170 ± 10mm for the equal length of side of size, can be folded into the quadrilateral that a length of side is 170 ± 10mm, just in time can be clipped in the teaching material of drawing study, facilitate student to take out at any time and study or learn in when study or the time of doing one's assignment, just cannot press from both sides completely into teaching material if size is large again, need to place in addition, easily lose or wearing and tearing, inconvenience is learnt at any time, if size is smaller again, typical part model in drawing study just cannot carry out complete projection in the solid space of the present embodiment, it is now clear that size indication in the present embodiment and relative position sign do not have yet, affect result of use, theoretical main-vision surface 4 is set before positive plate 1, after positive plate 1, arrange and put into practice main-vision surface 5, before side plate 2, a theoretical left side is set and looks face 6, face 7 is overlooked in the practice that arranges below of side plate 2, before leveling board 3, theory is set and overlooks face 8, the arranging below of leveling board 3 put into practice a left side and looked face 9, the present embodiment front arranges the instrument of theory study, reverse side arranges example material instrument, on limited usable floor area, load abundant utility, can allow the knowwhy of students three-view diagram, there is again example for understanding, digestion knowwhy, allow theory and practice mutually confirm and to consolidate, reach and can draw inferences about other cases from one instance, the effect of digesting, the present embodiment is reusable teaching appurtenance, need to often carry out bending, folding or expansion operation, described positive plate 1 all arranges impression with side plate 2, positive plate 1 with the front and back of leveling board 3 junctions, the present embodiment can be facilitated carry out accurately the bending of front or reverse side to form front stereoscopic-state or reverse side stereoscopic-state, or it is folding to carry out front or reverse side, packs up, presss from both sides in book, or be launched into plane, while carrying out these operations, there will not be deviation, and quick.
As shown in Figure 4, Figure 5, described theoretical main-vision surface 4 belows are overlooked face 8 tops with theory the X-axis size indication 10 with dimension line, dimension figure and Spindle Name are set respectively, no matter the present embodiment is at stereoscopic-state or flat state, theoretical main-vision surface 4 and theoretical overlooking on face 8 all can demonstrate corresponding X-axis size indication 10, accurately and intuitively reflect front view and the vertical view alignment relation on left and right directions; Theory overlooks face 8 right sides and a theoretical left side arranges respectively the Y-axis size indication 11 with dimension line, dimension figure and Spindle Name depending on face 6 downsides, no matter the present embodiment is at stereoscopic-state or flat state, theory overlook face 8 right sides with a theoretical left side depending on all demonstrating corresponding Y-axis size indication 11 on face 6, accurately and intuitively reflect left view and the vertical view alignment relation on fore-and-aft direction; Theoretical main-vision surface) right side and a theoretical left side arrange respectively the Z axis size indication 12 with dimension line, dimension figure and Spindle Name depending on face 6 left sides, no matter the present embodiment is at stereoscopic-state or flat state, theoretical main-vision surface 4 right sides depending on all demonstrating corresponding Z axis size indication 12 on face 6, accurately and intuitively reflect left view and the front view alignment relation on above-below direction with a theoretical left side.
The centre position of described theoretical main-vision surface 4 arranges main-vision surface and is called for short V sign 13, a theoretical left side arranges left view depending on the centre position of face 6 and is called for short W sign 14, theory is overlooked the centre position setting of face 8 and is overlooked face abbreviation H sign 15, provide a benchmark for relative position indicates, the abbreviation that also makes Students ' Learning grasp three views represents, above described main-vision surface abbreviation V sign 13, below, the left side and the right side arrange respectively on V face relative position and indicate 16, under V face relative position, indicate 17, the left sign 18 of V face relative position and the right sign 19 of V face relative position, above left view abbreviation W sign 14, below, the left side and the right side arrange respectively on W face relative position and indicate 20, under W face relative position, indicate 21, after W face relative position, indicate 22 and W face relative position before indicate 23, overlook face be called for short H indicate 15 above, below, the left side and the right side indicate 24 after H face relative position is set respectively, before H face relative position, indicate 25, the left sign 26 of H face relative position and the right sign 27 of H face relative position, the front view that student does is alignd with vertical view energy left and right directions, front view aligns with left view energy above-below direction, vertical view aligns with left view energy fore-and-aft direction, allow student firmly and easily learn the position relation between relative position relation and three views of each view.
Described put into practice that main-vision surface 5 and practice overlook face 7 depending on the corresponding same position of Z axis size indication 12 on face 6, X-axis size indication 10 is set with theoretical main-vision surface 4 and a theoretical left side, put into practice the left corresponding same position of X-axis size indication 10 of overlooking on face 8 with theoretical main-vision surface 4 and theory depending on face 9 of main-vision surface 5 and practice Z axis size indication 12 is set, put into practice the left corresponding same position of Y-axis size indication 11 of overlooking on face 8 depending on face 6 and theory with a theoretical left side depending on face 9 of the face of overlooking 7 and practice Y-axis size indication 11 is set, make the front and back of the present embodiment have identical, accurately, the object of reference that position is fixing, allow front and back form associated accurately, situation when situation while making theory study and learning by doing has a fixing object of reference, can find out fast and accurately both contacts, theory and practice is confirmed mutually, reach and digest.
As Fig. 6, shown in Fig. 7, the described main-vision surface 5 of putting into practice, face 7 and the left Front view 28 that Same Part is set respectively depending on aligned position on face 9 of practice are overlooked in practice, overlook Figure 29 and left view 30, make a part for student accurate, correct three-view diagram, avoid the student only can be theoretical and can not correctly put into practice, also avoid student only can draw the three-view diagram of one or two part and do not have theoretical direction can not draw inferences about other cases from one instance, can not draw the three-view diagram of other part, this arranges the knowwhy that can confirm three-view diagram, consolidate, grasp institute's theory knowledge, or reasoning rule and knowwhy, reach the effect of drawing inferences about other cases from one instance, respectively overlook Figure 29, Front view 28 and left view 30 arrange same point on part a indicate 31, a ＇ indicate 32 and a 〞 indicate 33, make a three-view diagram that point is accurate, correct for student, the correct point in three-view diagram marks: still use lowercase with capitalization, with the still different letter marks of use of same letter, in that view, should add a slash, in that view, should add two slashes, in that view, not add slash, grasp the Three-view projection rule of point.
If the present embodiment need to use stereoscopic-state above, make theoretical main-vision surface 4 motionless, towards user, rotate theory to front upper place along impression and overlook face 8, rotate a theoretical left side to left front along impression and look face 6, process as shown in Figure 8, continue, the Y-axis size indication 11 that theory is overlooked on face 8 aligns depending on the Y-axis size indication 11 on face 6 with a theoretical left side, and three perpendicular, as shown in Figure 4, for Students ' Learning three-view diagram knowwhy; If need to be launched into plane, make main-vision surface 4 motionless, towards user, rear is rotated theory along impression and is overlooked face 8 downwards, rotates a theoretical left side look face 6 to right back along impression, makes three at same plane, as shown in Fig. 5 or Fig. 7, allow observation of students, understand stereoscopic-state and how to be evolved into flat state, there is change in those relations and relative position, those do not change; If need stereoscopic-state below, allow to put into practice main-vision surface 5 motionless, towards user, rotate practice to front upper place along impression and overlook face 7, put into practice a left side look face 9 to left front along impression rotation, the Y-axis size indication 11 that practice is overlooked on face 7 aligns depending on the Y-axis size indication 11 on face 9 with practice is left, three perpendicular, as shown in Figure 6, the three-view diagram practice of carrying out part for student, compares, understands relation and conversion between the three-view diagram of stereoscopic-state part and the three-view diagram of flat state; If pressed from both sides in book after needing to fold, positive plate 1 is motionless, side plate 2 is folding forward or backward along impression, overlap with positive plate 1, leveling board 3 is folding forward or backward along impression, overlaps with positive plate 1 or side plate 2, as shown in Figure 9, can be clipped in the teaching material of drawing study, facilitate student in the time of study or the time of doing one's assignment takes out at any time, study or learn.
The present invention is suitable for teacher's classroom instruction, is also suitable for student's self-study, is suitable for colleges and universities, is also suitable for the three-view diagram teaching in middle school.
Claims (7)
1. a Three-views teaching aid, it comprises positive plate (1), be connected to the side plate (2) on positive plate (1) right side, be connected to the leveling board (3) of positive plate (1) downside, it is characterized in that: described positive plate (1), the quadrilateral that side plate (2) and leveling board (3) are 170 ± 10mm for the equal length of side of size, theoretical main-vision surface (4) is set before positive plate (1), after positive plate (1), arrange and put into practice main-vision surface (5), before side plate (2), a theoretical left side is set and looks face (6), face (7) is overlooked in the practice that arranges below of side plate (2), before leveling board (3), theory is set and overlooks face (8), the arranging below of leveling board (3) put into practice a left side and looked face (9).
2. Three-views teaching aid according to claim 1, is characterized in that: described positive plate (1) all arranges impression with side plate (2), positive plate (1) with the front and back of leveling board (3) junction.
3. Three-views teaching aid according to claim 1, it is characterized in that: described theoretical main-vision surface (4) below is overlooked face (8) top with theory the X-axis size indication (10) with dimension line, dimension figure and Spindle Name is set respectively, theory overlooks face (8) right side and a theoretical left side arranges respectively the Y-axis size indication (11) with dimension line, dimension figure and Spindle Name depending on face (6) downside, and theoretical main-vision surface (4) right side and a theoretical left side arrange respectively the Z axis size indication (12) with dimension line, dimension figure and Spindle Name depending on face (6) left side.
4. Three-views teaching aid according to claim 1, it is characterized in that: the centre position of described theoretical main-vision surface (4) arranges main-vision surface and is called for short V sign (13), a theory left side arranges left view depending on the centre position of face (6) and is called for short W sign (14), and theory is overlooked the centre position setting of face (8) and overlooked face abbreviation H sign (15).
5. Three-views teaching aid according to claim 4, it is characterized in that: above described main-vision surface abbreviation V sign (13), below, the left side and the right side arrange respectively sign (16) on V face relative position, under V face relative position, indicate (17), the left sign of V face relative position (18) and the right sign of V face relative position (19), above left view abbreviation W sign (14), below, the left side and the right side arrange respectively sign (20) on W face relative position, under W face relative position, indicate (21), before indicating (22) and W face relative position after W face relative position, indicate (23), overlook face be called for short H indicate (15) above, below, the left side and the right side indicate (24) after H face relative position is set respectively, before H face relative position, indicate (25), the left sign of H face relative position (26) and the right sign of H face relative position (27).
6. Three-views teaching aid according to claim 3, it is characterized in that: described put into practice that main-vision surface (5) and practice overlook face (7) depending on the corresponding same position of Z axis size indication (12) on face (6), X-axis size indication (10) is set with theoretical main-vision surface (4) and a theoretical left side, put into practice main-vision surface (5) and put into practice a left side, depending on the corresponding same position of X-axis size indication (10) of overlooking on face (8) with theoretical main-vision surface (4) and theory of face (9), Z axis size indication (12) is set, practice is overlooked face (7) and is put into practice a left side, depending on the corresponding same position of Y-axis size indication (11) of overlooking on face (8) depending on face (6) and theory with a theoretical left side of face (9), Y-axis size indication (11) is set.
7. Three-views teaching aid according to claim 6, it is characterized in that: describedly put into practice main-vision surface (5), front view (28), vertical view (29) and left view (30) that Same Part is set respectively depending on the upper aligned position of face (9) are overlooked face (7) and put into practice a left side in practice, and a sign (31), a ＇ sign (32) and a 〞 sign (33) of same point on part is set at vertical view (29), front view (28) and left view (30) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086194.1A CN103794116B (en) | 2014-03-11 | 2014-03-11 | Three-views teaching aid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086194.1A CN103794116B (en) | 2014-03-11 | 2014-03-11 | Three-views teaching aid |
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| CN103794116A true CN103794116A (en) | 2014-05-14 |
| CN103794116B CN103794116B (en) | 2016-03-30 |
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| CN201410086194.1A Expired - Fee Related CN103794116B (en) | 2014-03-11 | 2014-03-11 | Three-views teaching aid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599555A (en) * | 2015-02-09 | 2015-05-06 | 江汇 | Three-view teaching aid |
| CN105825764A (en) * | 2016-05-27 | 2016-08-03 | 上海电力学院 | Method of making portable three-projection-plane system teaching tool |
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| HRP20070345A2 (en) * | 2007-08-03 | 2009-08-31 | Hiti Ivan | Triangle ruler with ruler and protractor |
| CN201336093Y (en) * | 2008-12-29 | 2009-10-28 | 金振清 | Novel three-view drawing projection teaching board |
| CN201993976U (en) * | 2010-12-15 | 2011-09-28 | 金振清 | Three-view projection teaching aid board for third-angle projection |
| CN202650393U (en) * | 2012-01-04 | 2013-01-02 | 合肥桐科电子科技有限公司 | Three-view projection demonstration mold |
| CN202976598U (en) * | 2012-12-24 | 2013-06-05 | 孙一栋 | Axonometric drawing and three view drawing forming demonstrator |
| CN203799525U (en) * | 2014-03-11 | 2014-08-27 | 浙江水利水电学院 | Three-view teaching aid |
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- 2014-03-11 CN CN201410086194.1A patent/CN103794116B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2120688U (en) * | 1992-01-02 | 1992-11-04 | 张国营 | Equal width rule |
| HRP20070345A2 (en) * | 2007-08-03 | 2009-08-31 | Hiti Ivan | Triangle ruler with ruler and protractor |
| CN201336093Y (en) * | 2008-12-29 | 2009-10-28 | 金振清 | Novel three-view drawing projection teaching board |
| CN201993976U (en) * | 2010-12-15 | 2011-09-28 | 金振清 | Three-view projection teaching aid board for third-angle projection |
| CN202650393U (en) * | 2012-01-04 | 2013-01-02 | 合肥桐科电子科技有限公司 | Three-view projection demonstration mold |
| CN202976598U (en) * | 2012-12-24 | 2013-06-05 | 孙一栋 | Axonometric drawing and three view drawing forming demonstrator |
| CN203799525U (en) * | 2014-03-11 | 2014-08-27 | 浙江水利水电学院 | Three-view teaching aid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104599555A (en) * | 2015-02-09 | 2015-05-06 | 江汇 | Three-view teaching aid |
| CN105825764A (en) * | 2016-05-27 | 2016-08-03 | 上海电力学院 | Method of making portable three-projection-plane system teaching tool |
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| Publication number | Publication date |
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| CN103794116B (en) | 2016-03-30 |
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Granted publication date: 20160330 Termination date: 20170311 |