CN103879200B - Classroom draughting board tool - Google Patents

Classroom draughting board tool Download PDF

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Publication number
CN103879200B
CN103879200B CN201410108534.6A CN201410108534A CN103879200B CN 103879200 B CN103879200 B CN 103879200B CN 201410108534 A CN201410108534 A CN 201410108534A CN 103879200 B CN103879200 B CN 103879200B
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CN
China
Prior art keywords
briquetting
boundary line
chart board
classroom
size indication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201410108534.6A
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Chinese (zh)
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CN103879200A (en
Inventor
江有永
项春
钟建国
蒋浩盛
许周海
饶孟飞
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Zhejiang University of Water Resources and Electric Power
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Zhejiang University of Water Resources and Electric Power
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Publication date
Application filed by Zhejiang University of Water Resources and Electric Power filed Critical Zhejiang University of Water Resources and Electric Power
Priority to CN201410108534.6A priority Critical patent/CN103879200B/en
Publication of CN103879200A publication Critical patent/CN103879200A/en
Application granted granted Critical
Publication of CN103879200B publication Critical patent/CN103879200B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The present invention relates to a kind of classroom draughting board tool.The object of this invention is to provide and a kind ofly drawing can be placed into suitable position fast and accurately and be fixed on fast on chart board, draw picture frame, small volume fast and accurately, be applicable to classroom draughting board tool that classroom uses.Technical scheme of the present invention is: chart board front arranges GB A3 drawing boundary line and GB A4 drawing boundary line, there is the location briquetting of embedded briquetting magnet, figure back and briquetting magnet correspondence position also embed 8 blocks of chart board magnet, chart board surrounding arranges chart board size indication, the zero graduation of the chart board size indication on top and the left side is arranged on centre, chi plate surface arranges zero graduation and is placed in centre, chart board is only allowed to meet the placement of A3 drawing and A4 drawing according to drawing classroom demand, the chi plate of T-square and sliding plate are connected as a single entity, sliding plate is perpendicular to the surface at T-square size indication place.Namely the present invention is suitable for colleges and universities' drawing classroom and uses, and the drawing classroom being also suitable for middle school uses.

Description

Classroom draughting board tool
Technical field
The present invention relates to a kind of drafting instrument, specifically a kind of classroom draughting board tool.
Background technology
When the drawing course study of colleges and universities, chart board and T-square are indispensable drafting instruments, the chart board of present use mostly is ganoid hollow plank, not yielding, comparatively light, but during drawing, the location of drawing is comparatively inconvenient, common operating process is first alignd with the side of chart board in the side of the sliding plate of T-square to overlap, the chi plate of T-square is made to be in horizontal level state, again drawing is placed on and below chi plate, allows the top of drawing or overlap with the chi plate of T-square or align below, drawing is made also to be in horizontal level state, with adhesive tape, drawing is pasted and fixed on chart board again, look into national standard again, according to the size of national regulations, measure, draw out picture frame, such process is not only loaded down with trivial details time-consuming, and poor quality, if students wants this process to carry out, also need accumulation and summing up experience, T-square is made up of chi plate and sliding plate in addition, chi plate and sliding plate are two parts, sliding plate is adhesively fixed on chi plate one end, have loosely bonding time in use and phenomenon that is that come off occurs, sliding plate and chi plate are parallel bonding, and the large surface of sliding plate does not contact with chart board, and just side contacts with chart board and slippage, so T-square is comparatively large in the outer area occupied of chart board when using, make troubles to use.
In order to fast and accurately drawing is fixed on position suitable in chart board, drawing education or researcher have also made effort, the patent No. be 94204186.0 utility model patent disclose a kind of scheme: imbed steel plate strip in chart board, chart board is arranged the mark line of display steel plate strip position and width, during work, drawing is fixed with attraction steel plate strip, can more fast drawing be fixed on chart board, no longer need to paste with adhesive tape, but it still can not determine drawing at the correct position parallel with chart board or T-square fast, steel plate strip can increase the weight of whole chart board greatly in addition, too increase the cost of product, drawing only has four angles just can arrange magnet to be fixed, all the other space requirements are used for mobile T-square or set square, can not magnet be set, so imbed steel plate strip in chart board namely waste the weight that material turn increases chart board.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of for above-mentioned Problems existing and drawing can be placed into suitable position fast and accurately and be fixed on fast on chart board, draw picture frame, small volume fast and accurately, be applicable to classroom draughting board tool that classroom uses.
The technical solution adopted in the present invention is: classroom draughting board tool, it comprises chart board and T-square, it is characterized in that: the front of described chart board arranges GB A3 drawing boundary line and GB A4 drawing boundary line, respective 4 Angle Position of GB A3 drawing boundary line and GB A4 drawing boundary line arrange GB A3 briquetting boundary line and GB A4 briquetting boundary line respectively, align respectively 4 cover GB A3 briquetting boundary lines or 4 cover GB A4 briquetting boundary lines of 4 pieces of location briquettings are placed on the front of chart board, described location briquetting is embedded in briquetting magnet, figure back and briquetting magnet correspondence position embed 8 blocks of chart board magnet, between every two GB A3 briquetting boundary lines of chart board surrounding, chart board size indication is set.
The size of described GB A3 drawing boundary line, GB A4 drawing boundary line equals national standard A3, A4 drawing breadth size respectively, GB A4 drawing boundary line is placed in the middle of GB A3 drawing boundary line, and two minor faces of GB A4 drawing boundary line overlap with Liang Tiaochang limit, GB A3 drawing boundary line.
The markings that described GB A3 briquetting boundary line and GB A4 briquetting boundary line respectively intersect vertically mutually by two form, markings perpendicular or parallel GB A3 drawing boundary line or GB A4 drawing boundary line, distance between the upper and lower two pairs of GB A3 briquetting boundary lines of Distance geometry between two pairs of GB A3 briquetting boundary lines, left and right equals the length of the national standard picture frame of A3 drawing and wide respectively, and the distance between the upper and lower two pairs of GB A4 briquetting boundary lines of the Distance geometry between GB A4 briquetting boundary line, two pairs, left and right equals the length of the national standard picture frame of A4 drawing and wide respectively.
Described location briquetting includes two mutually vertical and crossing picture frame datum levels, and the intersection of picture frame datum level arranges the breach of taper, picture frame datum level vertical alignment GB A3 briquetting boundary line or GB A4 briquetting boundary line.
In the chart board size indication on the both sides up and down of described chart board, the zero graduation of chart board size indication is on one side had to be arranged on centre, the zero graduation of another side chart board size indication is arranged on left end, in the chart board size indication of the right and left, have the zero graduation of chart board size indication to be on one side arranged on centre, the zero graduation of another side chart board size indication is arranged on lower end.
The chi plate of described T-square and sliding plate are connected as a single entity, and chi plate surface arranges zero graduation and is placed in the T-square size indication that centre, upper and lower side all arrange graduation mark, and sliding plate is perpendicular to the surface at T-square size indication place.
The invention has the beneficial effects as follows: 1, chart board front of the present invention arranges GB A3 drawing boundary line and GB A4 drawing boundary line, fast and accurately drawing can be placed into suitable position.2, the present invention has the location briquetting of embedded briquetting magnet, and figure back and briquetting magnet correspondence position also embed 8 blocks of chart board magnet, fast and accurately drawing are fixed on chart board.3, respective 4 Angle Position of GB A3 drawing boundary line of the present invention and GB A4 drawing boundary line arrange GB A3 briquetting boundary line and GB A4 briquetting boundary line respectively, align respectively 4 cover GB A3 briquetting boundary lines or 4 cover GB A4 briquetting boundary lines of 4 pieces of location briquettings are placed on the front of chart board, T-square laminating location briquetting, draws picture frame fast and accurately.4, chart board surrounding of the present invention arranges chart board size indication, and the zero graduation of the chart board size indication on top and the left side is arranged on centre, and chi plate surface arranges zero graduation and is placed in centre, conveniently painted view is placed in the middle of drawing.5, the present invention only allows chart board meet the placement of A3 drawing and A4 drawing according to drawing classroom demand, the chi plate of T-square and sliding plate are connected as a single entity, sliding plate, perpendicular to the surface at T-square size indication place, makes the overall dimensions of chart board and T-square less, carries and deposit more convenient.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention.
Fig. 2 is the front schematic perspective view of chart board of the present invention.
Fig. 3 is the front schematic perspective view of location of the present invention briquetting.
Fig. 4 is the back side schematic perspective view of chart board of the present invention.
Fig. 5 is the back side schematic perspective view of location of the present invention briquetting.
Fig. 6 is T-square schematic perspective view of the present invention.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, the present embodiment comprises chart board 1 and T-square 2, it is characterized in that: the front of described chart board 1 arranges GB A3 drawing boundary line 3 and GB A4 drawing boundary line 4, in drawing teaching process, when using chart board 1 and T-square 2 to draw, the drawing used mostly is A4 drawing, there is a small amount of A3 drawing, A2 and larger drawing on classroom almost with less than, chart board 1 and T-square 2 flat time be student oneself keeping, be placed on bedroom, when needing to use chart board 1 and T-square 2, students just takes classroom, in order to students keeping and easy to carry, the chart board of the present embodiment is miniaturized, practical, facilitate and meet on students classroom and draw A3 drawing and A4 drawing, fast and accurately drawing can also be put into suitable position, the chi plate of T-square is made to be in horizontal level state without the need to first being alignd to overlap with the side of chart board in the side of the sliding plate of T-square, again drawing is placed on and below chi plate, allows the top of drawing or overlap with the chi plate of T-square or align below and make drawing also be in this complicated processes of horizontal level state, but directly four limits of A3 drawing or A4 drawing are overlapped with four limits of GB A3 drawing boundary line 3 or GB A4 drawing boundary line 4, convenient and swift and accurate, respective 4 Angle Position of GB A3 drawing boundary line 3 and GB A4 drawing boundary line 4 arrange GB A3 briquetting boundary line 5 and GB A4 briquetting boundary line 6 respectively, after A3 drawing or A4 figure paper registration coincidence GB A3 drawing boundary line 3 or GB A4 drawing boundary line 4 place, location briquetting 7 just can be placed on GB A3 briquetting boundary line 5 or GB A4 briquetting boundary line 6 fast and accurately, be unlikely to mislay when causing drawing and locate the movement that briquetting 7 affects T-square 2 or set square, impact is drawn, also being unlikely to locate briquetting 7, to push down the area of drawing too little and easily make drawing be moved, dislocation, impact is drawn.
As shown in Figure 3, location briquetting 7 includes two mutually vertical and crossing picture frame datum levels 11, the front that GB A4 briquetting boundary lines 6 are placed on chart board 1 is overlapped in 4 pieces of location briquettings 7,4 cover GB A3 briquetting boundary lines 5 or 4 of aliging respectively, now picture frame datum level 11 vertical alignment GB A3 briquetting boundary line 5 or GB A4 briquetting boundary line 6, when drawing picture frame, during the horizontal flat picture frame datum level 11 of T-square 2 or set square alignment laminating two pieces of location briquettings 7 above, just accurately and fast can draw a limit above of picture frame, during the horizontal flat picture frame datum level 11 of alignment laminating two pieces of location briquettings 7 below, just can draw a limit below picture frame, chart board 1 rotates counterclockwise 90 degree, allow equally the horizontal flat picture frame datum level 11 of T-square 2 or set square alignment laminating two pieces of location briquettings 7 above and two pieces of location briquettings 7 below time, just accurately and fast can draw the two other limit of picture frame, the intersection of picture frame datum level 11 arranges the breach 12 of taper, can ensure when using pencil to draw picture frame, the horizontal line of picture frame and vertical line can be formed and intersect, can also make in addition between location briquetting 7 and drawing, to maintain as far as possible large contact area, too many contact area can not be reduced because of the setting of breach 12, drawing is moved in use, misplace.
As shown in Figure 4, Figure 5, described location briquetting 7 is embedded in briquetting magnet 8, chart board 1 back side and briquetting magnet 8 correspondence position embed 8 blocks of chart board magnet 9, when the present embodiment uses, interactional powerful attraction can be formed between briquetting magnet 8 and chart board magnet 9, ensure the fixing of location briquetting 7 pairs of drawings, self holding position of location briquetting 7 also can be made to fix, draw out picture frame accurately.
Between every two GB A3 briquetting boundary lines 5 of chart board 1 surrounding, chart board size indication 10 is set, when drawing, convenient and measure accurately or determine size, the chart board size indication 10 that can also left and right be utilized at any time relative or chart board size indication 10 opposing upper and lower check or confirm whether T-square 2 or set square are put horizontal flat or vertically easily.
GB A3 drawing boundary line 3, the size of GB A4 drawing boundary line 4 equals national standard A3 respectively, A4 drawing breadth size, GB A4 drawing boundary line 4 is placed in the middle of GB A3 drawing boundary line 3, two minor faces of GB A4 drawing boundary line 4 overlap with two long limits of GB A3 drawing boundary line 3, the width of A3 drawing equals the length of A4 drawing, the width boundary line can lacking making two GB A4 drawing boundary lines 4 is set like this, when using A4 drawing to draw, chart board 1 is rotated counterclockwise 90 degree, during using present top as side or working edge, the width limit of A4 drawing and chart board size indication 10 are apart from very near, can more accurately and easily measure and controlling dimension, draw fast and accurately.
GB A3 briquetting boundary line 5 and GB A4 briquetting boundary line 6 are respectively made up of two markings mutually intersected vertically, GB A3 briquetting boundary line 5 and GB A4 briquetting boundary line 6 provide location not only can to fast and accurately location briquetting 7, also will provide benchmark for picture frame; Markings perpendicular or parallel GB A3 drawing boundary line 3 or GB A4 drawing boundary line 4, guarantee picture frame and the parallel of drawing or vertical relation; Distance between the upper and lower two pairs of GB A3 briquetting boundary lines 5 of Distance geometry between two pairs of GB A3 briquetting boundary lines 5, left and right equals the length of the national standard picture frame of A3 drawing and wide respectively, guarantees length and the width of A3 drawing picture frame, ensure that the accuracy of A3 drawing picture frame; Distance between the upper and lower two pairs of GB A4 briquetting boundary lines 6 of Distance geometry between two pairs of GB A4 briquetting boundary lines 6, left and right equals the length of the national standard picture frame of A4 drawing and wide respectively, guarantees length and the width of A4 drawing picture frame, ensure that the accuracy of A4 drawing picture frame.
In the chart board size indication 10 on the both sides up and down of chart board 1, the zero graduation of chart board size indication 10 is on one side had to be arranged on centre, the zero graduation of another side chart board size indication 10 is arranged on left end, in the chart board size indication 10 of the right and left, the zero graduation of chart board size indication 10 is on one side had to be arranged on centre, the zero graduation of another side chart board size indication 10 is arranged on lower end, chi plate 13 surface arranges zero graduation and is placed in centre, zero graduation be placed in centre can make more easily student paint the centre that view is placed on drawing, improve drawing quality, when drafting scaling is the figure of 2:1, more conveniently can measure size accurately, when being the line of 36mm as drawn dimensioning, one end of compasses just can be used to be placed on the 36mm place, the left side of zero graduation line, the other end is placed on the 36mm place, the right of zero graduation line, the size that can obtain required 72mm is drawn, convenient, fast, if requirement gets overall dimensions when drawing, also can be convenient to use opposite side zero graduation and to be arranged on end, chart board size indication 10.
As shown in Figure 6, chi plate 13 and the sliding plate 14 of T-square 2 are connected as a single entity, and make the manufacture of T-square 2 more easy, save cost, also improve the bonding strength between chi plate 13 and sliding plate 14; Chi plate 13 on the surface lower end all arranges the T-square size indication 15 of graduation mark, and make T-square 2 upper and lower side all can be used as working edge, instant noodles are drawn efficiently; Sliding plate 14 is perpendicular to the surface at T-square size indication 15 place, when using the present embodiment, making the left surface of the large surface laminating chart board 1 of sliding plate 14 carry out slippage, reducing the overall dimensions of T-square 2, make the overall dimensions of chart board 1 and T-square 2 less, carry and deposit more convenient.
When using A3 drawing to draw, A3 figure paper registration coincidence GB A3 drawing boundary line 3, briquetting 7 GB A3 briquetting boundary line 5 of aliging in location is pressed on drawing, and briquetting magnet 8 and chart board magnet 9 attract each other, and namely complete the fixing of A3 drawing; When using A4 drawing to draw, A4 figure paper registration coincidence GB A4 drawing boundary line 4, briquetting 7 GB A4 briquetting boundary line 6 of aliging in location is pressed on drawing and namely completes the fixing of A4 drawing; The sliding plate 14 of T-square 2 is fitted with the left surface of chart board 1, as shown in Figure 1, slippage T-square 2, chi plate 13 laminating location briquetting 7 is made to draw out picture frame, recycling chart board size indication 10 and T-square size indication 15 just can facilitate drawing view accurately, and are placed on position suitable in the middle of drawing.
Namely the present invention is suitable for colleges and universities' drawing classroom and uses, and the drawing classroom being also suitable for middle school uses.

Claims (4)

1. a classroom draughting board tool, it comprises chart board (1) and T-square (2), chi plate (13) and the sliding plate (14) of T-square (2) are connected as a single entity, it is characterized in that: the front of described chart board (1) arranges GB A3 drawing boundary line (3) and GB A4 drawing boundary line (4), described GB A3 drawing boundary line (3), the size of GB A4 drawing boundary line (4) equals national standard A3 respectively, A4 drawing breadth size, respective 4 Angle Position of GB A3 drawing boundary line (3) and GB A4 drawing boundary line (4) arrange GB A3 briquetting boundary line (5) and GB A4 briquetting boundary line (6) respectively, described GB A3 briquetting boundary line (5) and GB A4 briquetting boundary line (6) are respectively made up of two markings mutually intersected vertically, markings perpendicular or parallel GB A3 drawing boundary line (3) or GB A4 drawing boundary line (4), distance between the upper and lower two pairs of GB A3 briquetting boundary lines (5) of Distance geometry between the two pairs of GB A3 briquetting boundary lines (5) in left and right equals the length of the national standard picture frame of A3 drawing and wide respectively, distance between the upper and lower two pairs of GB A4 briquetting boundary lines (6) of Distance geometry between the two pairs of GB A4 briquetting boundary lines (6) in left and right equals the length of the national standard picture frame of A4 drawing and wide respectively, align respectively 4 covers GB A3 briquetting boundary line (5) or 4 covers GB A4 briquetting boundary line (6) of 4 pieces of location briquettings (7) are placed on the front of chart board (1), described location briquetting (7) is embedded in briquetting magnet (8), described location briquetting (7) includes two mutually vertical and crossing picture frame datum levels (11), the intersection of picture frame datum level (11) arranges the breach (12) of taper, picture frame datum level (11) vertical alignment GB A3 briquetting boundary line (5) or GB A4 briquetting boundary line (6), chart board (1) back side and briquetting magnet (8) correspondence position embed 8 pieces of chart board magnet (9), between every two GB A3 briquetting boundary lines (5) of chart board (1) surrounding, chart board size indication (10) is set.
2. according to the draughting board tool of the classroom shown in claim 1, it is characterized in that: described GB A4 drawing boundary line (4) is placed in the middle of GB A3 drawing boundary line (3), and (3) two long limits in two minor faces and GB A3 drawing boundary line of GB A4 drawing boundary line (4) overlap.
3. according to the draughting board tool of the classroom shown in claim 1, it is characterized in that: in the chart board size indication (10) on the both sides up and down of described chart board (1), the zero graduation of chart board size indication (10) is on one side had to be arranged on centre, the zero graduation of another side chart board size indication (10) is arranged on left end, in the chart board size indication (10) of the right and left, have the zero graduation of chart board size indication (10) to be on one side arranged on centre, the zero graduation of another side chart board size indication (10) is arranged on lower end.
4. according to the draughting board tool of the classroom shown in claim 1, it is characterized in that: described chi plate (13) surface arranges zero graduation and is placed in centre, and chi plate (13) on the surface lower end all arranges T-square size indication (15).
CN201410108534.6A 2014-03-24 2014-03-24 Classroom draughting board tool Expired - Fee Related CN103879200B (en)

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CN103879200A CN103879200A (en) 2014-06-25
CN103879200B true CN103879200B (en) 2016-03-16

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104442115A (en) * 2014-12-16 2015-03-25 济南大学 Drawing board

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1056461A (en) * 1990-05-14 1991-11-27 王彩仁 Magnetic drawing board
CN2108630U (en) * 1990-12-12 1992-07-01 张瑞生 Drawing-board with graduation
CN2185205Y (en) * 1994-03-12 1994-12-14 张留云 Magnetic drawing board
US5845409A (en) * 1994-06-21 1998-12-08 Kimoto; Masao Drawing board
CN101863181A (en) * 2009-04-17 2010-10-20 冯婉莹 Multifunction drawing board
CN202115194U (en) * 2011-07-13 2012-01-18 陈运来 Drawing board with T-square
CN103381726A (en) * 2013-06-29 2013-11-06 王建友 Drafting board
CN203792966U (en) * 2014-03-24 2014-08-27 浙江水利水电学院 Drawing board tool for class

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006231889A (en) * 2005-02-23 2006-09-07 Masahiro Matsuura Drafting board fitted with straightedge having paper holding channel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1056461A (en) * 1990-05-14 1991-11-27 王彩仁 Magnetic drawing board
CN2108630U (en) * 1990-12-12 1992-07-01 张瑞生 Drawing-board with graduation
CN2185205Y (en) * 1994-03-12 1994-12-14 张留云 Magnetic drawing board
US5845409A (en) * 1994-06-21 1998-12-08 Kimoto; Masao Drawing board
CN101863181A (en) * 2009-04-17 2010-10-20 冯婉莹 Multifunction drawing board
CN202115194U (en) * 2011-07-13 2012-01-18 陈运来 Drawing board with T-square
CN103381726A (en) * 2013-06-29 2013-11-06 王建友 Drafting board
CN203792966U (en) * 2014-03-24 2014-08-27 浙江水利水电学院 Drawing board tool for class

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