CN108544878A - A kind of portable multi-function drafting instrument - Google Patents

A kind of portable multi-function drafting instrument Download PDF

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Publication number
CN108544878A
CN108544878A CN201810220443.XA CN201810220443A CN108544878A CN 108544878 A CN108544878 A CN 108544878A CN 201810220443 A CN201810220443 A CN 201810220443A CN 108544878 A CN108544878 A CN 108544878A
Authority
CN
China
Prior art keywords
engineer
ruler
scale
portable multi
drafting instrument
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.)
Pending
Application number
CN201810220443.XA
Other languages
Chinese (zh)
Inventor
吴佩佩
钦岳烽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG VOCATIONAL COLLEGE OF SCIENCE AND TECHNOLOGY
Zhejiang Tongji Vocational College of Science and Technology
Original Assignee
ZHEJIANG VOCATIONAL COLLEGE OF SCIENCE AND TECHNOLOGY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG VOCATIONAL COLLEGE OF SCIENCE AND TECHNOLOGY filed Critical ZHEJIANG VOCATIONAL COLLEGE OF SCIENCE AND TECHNOLOGY
Priority to CN201810220443.XA priority Critical patent/CN108544878A/en
Publication of CN108544878A publication Critical patent/CN108544878A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02Draughting machines or drawing devices for keeping parallelism
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L7/00Straightedges
    • B43L7/027Plural non-adjustable straightedges fixed at right angles
    • B43L7/0275Triangles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004Personal or domestic articles
    • F21V33/0048Office articles, e.g. bookmarks, desk lamps with drawers, stands for books or music scores
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

The present invention relates to drafting instrument fields, disclose a kind of portable multi-function drafting instrument, it includes using draughting board made of light material, draughting board is equipped with transportable parallel rule, set square and corner ruler, is additionally provided with the more prismatic engineer's scales that can be adjusted and more prismatic engineer's scale regulating mechanisms on parallel rule in addition.Draughting board possesses good strength using high-quality PS materials and carries light and handy feature in the present invention, secondly draughting board possesses light transmission function, enhance the applicability of more use environments, parallel rule and corner ruler all carry more ratio conversion functions simultaneously, engineer's scale shaft is rotated using worm gear mechanism by engineer's scale adjusting knob switch, rotates to corresponding engineer's scale;The cumbersome of traditional trigone ratio and conversion is broken away from, the ruler of the different function of multiple adjustable positions is installed on a draughting board, substantially increases drawing efficiency and draught smanship.

Description

A kind of portable multi-function drafting instrument
Technical field
The present invention relates to drafting instrument fields, more particularly to a kind of portable multi-function drafting instrument.
Background technology
Traditional drafting instrument majority is all made of wooden draughting board and ruler in bulk (set square, T-square etc.).But It is that a kind of portable multi-function drafting instrument of tradition carries heaviness using complex steps disadvantage, currently designed drawing industry is gone out Figure rate generates huge obstruction with figure quality is gone out.Therefore enhancing drafting instrument portability and multifunctionality are that raising drawing assignment is efficient The key of property and high-quality.
Invention content
The present invention is directed to the problems of the prior art, provides a kind of portable multi-function drafting instrument.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
A kind of portable multi-function drafting instrument, including using draughting board made of light material, draughting board is equipped with flat Row ruler, set square and corner ruler, draughting board include the extension of edge and the drawing portion at middle part, and extension wraps drawing portion It encloses, extension is equipped with the first sliding rail and the ruler indexing along slide direction, the first sliding rail and drawing portion sides aligned parallel, parallel rule Both ends be equipped with the first slideway for coordinating with the first sliding rail, parallel rule is slid back and forth along the first sliding rail to adjust position, parallel rule Middle part is provided along its length the second sliding rail, set square and corner ruler be equipped with the second slideway of the second sliding rail cooperation, Third slideway, set square are horizontally slipped on the second sliding rail with corner ruler to adjust position.
Preferably, more prismatic engineer's scales and engineer's scale regulating mechanism are additionally provided on parallel rule, engineer's scale regulating mechanism packet The bottom case being mutually clamped and upper cover are included, a cavity is formed between bottom case and upper cover, at least one more prismatic ratios is equipped in cavity Every rib of ruler, more prismatic engineer's scales corresponds to a ratio graticule, and the both ends of more prismatic engineer's scales are equipped with shaft, the end of shaft Equipped with gear, platform sling is equipped between gear and more prismatic ratio ruler end parts, platform sling upper end is connect with upper cover, and shaft runs through platform sling and can It is freely rotated on platform sling;Bottom case is equipped with the worm screw that coordinate with gear, and worm screw stretches out from upper cover, rotary worm drive shaft with To adapt to different ratios, wherein upper cover is that display port is offered on transparent material or upper lid for reading for more prismatic engineer's scale rotations Access evidence.
Preferably, parallel rule is equipped with the installation groove for proportion of installation ruler regulating mechanism, the bottom of bottom case is equipped with With the strip of installation groove cooperation, strip extend into installation groove and is limited, and lock pin is additionally provided on bottom case, lock pin The extended bottom case bottom in bottom end, the top of lock pin stretch out upper cover and form a button, and single depression button is by lock pin bottom It is locked with parallel rule close contact, secondary pressing button lock pin bottom detaches releasing locking with parallel rule.
Preferably, corner ruler includes connection pedestal, the knob being set on pedestal and the corner ruler being connect with knob Blade, third slideway are located on connection pedestal, and the angle of corner ruler blade is adjusted by turn knob.
Preferably, rotation ruler blade includes two linear rulers for being connected with each other and being mutually 90 degree, each linear ruler Both sides are respectively provided with one group of dial markings, and sliding slot is equipped between two groups of dial markings of each linear ruler, plate ratio is equipped in sliding slot Example ruler, the both sides of plate engineer's scale are equipped with dial markings.
Preferably, rotation ruler blade is equipped with two-way angle scale, angle scale is located at two linear rulers and connects Locate, the connection pedestal above angle scale is equipped with the angle indicator with angle scale cooperation reading.
Preferably, set square includes set square blade and connection strap, connection strap is located at a right angle of set square blade Bian Shang, the second slideway are located on connection strap, and set square blade is flexibly connected by connection strap with the second sliding rail, the upside of connection strap Equipped with the handle for pushing it to slide.
Preferably, set square as right angled triangle, which is provided with one section of linear through-hole and one section it is arc-shaped Through-hole, the through-hole of linear be located on the inside of connection strap and itself and scale of right-angle side cooperates at this, arc-shaped through-hole Angle index is equipped with the set square at edge.
Preferably, draughting board includes with reeded matrix and the acrylic panel being set in the groove of matrix, prolong The medial surface of extending portion is inlaid with multiple LED light, and the light of LED light laterally provides institute's light requirement transmitted through acrylic panel for picture According to the lateral surface of extension is equipped with power interface and switch, and power interface, switch and LED light are connected by power cord, and power supply connects Mouth cooperation general-purpose data line is connected as LED light power supply with external power supply, and by switch control LED light, wherein switch includes more Gear of the grade for adjusting brightness.
Preferably, the bottom surface of matrix is equipped with reinforcing rib, reinforcing rib distributes as net shape, and is equipped between the gap of reinforcing rib anti- Sliding rubber earring moulding, front side of matrix are additionally provided with the lock paper slip for locking paper, and lock paper slip is located above acrylic panel.
Present invention employs above scheme to have the advantages that:
1. draughting board possesses good strength using high-quality PS materials and carries light and handy feature, secondly draughting board possesses light transmission Function enhances the applicability of more use environments, while parallel rule and corner ruler all carry more ratio conversion functions, break away from tradition Trigone ratio and conversion it is cumbersome, the ruler of the different function of multiple adjustable positions is installed on a draughting board, is greatly improved Drawing efficiency and draught smanship.
2. matrix back reinforcing rib enhances bending resistance and intensity, back have antiskid effect equipped with anti-slip rubber pedestal;
3. for convenience in the operation of dark place, plate body center coordinates brightness energy-saving using high acrylic panel thoroughly LED provides uniform light source, fully compatible using multiple power source interface, and power supply is convenient, switchs adjustable gear;
4. parallel rule uses centre zero scale and a variety of scribe marks, can be locked in convenient for the lockable mechanism of one-handed performance Any position on double track.Parallel rule additionally carries 5 kinds of ratio conversion functions, and worm gear snail is utilized by engineer's scale adjusting knob switch Linkage rotates engineer's scale shaft, rotates to corresponding engineer's scale;
5. corner ruler is two transparent rulers with bilateral direction and opposite scale, there is the groove of 3cm wide among ruler, It can be embedded in engineer's scale, two-way protractor range 0-90 degree is set automatically as unit of 10 degree, can by the knob on corner ruler Angle is arbitrarily arranged.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the external structure partial schematic diagram of engineer's scale regulating mechanism.
Fig. 3 is the internal structure partial schematic diagram of engineer's scale regulating mechanism.
Fig. 4 is the structural schematic diagram of corner ruler.
Fig. 5 is the structural schematic diagram of set square.
Fig. 6 is the partial schematic diagram of draughting board corner.
The toponym that each number designation is referred in attached drawing is as follows:1-draughting board, 2-extensions, 3-drawing portions, 4-parallel rules, the 5-the first sliding rail, the 6-the second sliding rail, 7-engineer's scale regulating mechanisms, 8-set squares, 9-corner rulers, 10- Lock paper slip, 11-bottom cases, 12-upper covers, 13-buttons, 14-display ports, 15-lock pins, 16-worm screws, 17-gears, 18-platform slings, 19-shafts, more than 20-prismatic engineer's scales, 21-connection pedestals, 22-knobs, 23-linear rulers, 24-plates Shape engineer's scale, 25-connection straps, 26-handles, the through-hole of 27-linears, 28-arc-shaped through-holes, 29-LED light.
Specific implementation mode
Present invention is further described in detail with embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of portable multi-function drafting instrument, including it is optional using draughting board 1, the light material made of light material With PS materials, draughting board 1 is equipped with parallel rule 4, set square 8 and corner ruler 9, and draughting board 1 includes 2 He of extension of edge The drawing portion 3 at middle part, extension 2 surround drawing portion 3, and extension 2 is equipped with the first sliding rail 5 and the ruler marking along slide direction Degree, the first sliding rail 5 and 3 sides aligned parallel of drawing portion, the both ends of parallel rule 4 are equipped with the first slideway coordinated with the first sliding rail 5, parallel Ruler 4 is slid back and forth along the first sliding rail 5 to adjust position, and 4 middle part of parallel rule is provided along its length the second sliding rail 6, set square 8 It is equipped with the second slideway, the third slideway with the cooperation of the second sliding rail 6 with corner ruler 9, set square 8 is slided with corner ruler 9 second It is horizontally slipped on rail 6 to adjust position.
More prismatic engineer's scales 20 and engineer's scale regulating mechanism 7 are additionally provided on parallel rule 4, engineer's scale regulating mechanism 7 includes phase The bottom case 11 and upper cover 12 mutually engaged forms a cavity, at least one more prismatics is equipped in cavity between bottom case 11 and upper cover 12 Every rib of engineer's scale 20, more prismatic engineer's scales 20 corresponds to a ratio graticule, and the both ends of more prismatic engineer's scales 20 are equipped with shaft 19, the end of shaft 19 is equipped with gear 17, is equipped with platform sling 18 between gear 17 and more 20 ends of prismatic engineer's scale, 18 upper end of platform sling with Upper cover 12 connects, and shaft 19 is through platform sling 18 and can be freely rotated on platform sling 18;Bottom case 11, which is equipped with, to be coordinated with gear 17 Worm screw 16, worm screw 16 stretch out from upper cover 12, and rotary worm 16 drives shaft 19 and the rotation of more prismatic engineer's scales 20 to adapt to difference Ratio, wherein upper cover 12 is that display port 14 is offered in transparent material or upper cover 12 for reading data.
Parallel rule 4 is equipped with the installation groove for proportion of installation ruler regulating mechanism 7, and the bottom of bottom case 11 is equipped with and installation The strip of groove cooperation, strip extend into installation groove and are limited, and lock pin 15 is additionally provided on bottom case 11, lock pin 15 Extended 11 bottom of bottom case in bottom end, the top of lock pin 15 stretch out upper cover 12 and form a button 13, and single depression button 13 allows 15 bottom of lock pin is locked with the close contact of parallel rule 4, and 13 lock pin of secondary pressing button, 15 bottom is detached with parallel rule 4 Release locking.
Corner ruler 9 includes connection pedestal 21, the knob 22 being set on pedestal and the corner ruler ruler being connect with knob 22 Body, third slideway are located on connection pedestal 21, and the angle of corner ruler blade is adjusted by turn knob 22.
Rotation ruler blade includes two linear rulers 23 for being connected with each other and being mutually 90 degree, and the both sides of each linear ruler 23 are each Equipped with one group of dial markings, it is equipped with sliding slot between two groups of dial markings of each linear ruler 23, plate engineer's scale is equipped in sliding slot 24, the both sides of plate engineer's scale 24 are equipped with dial markings.
It rotates ruler blade and is equipped with two-way angle scale, angle scale is located at two 23 junctions of linear ruler, angle Connection pedestal 21 above scale is equipped with the angle indicator with angle scale cooperation reading.
Set square 8 includes set square blade and connection strap 25, and connection strap 25 is located on a right-angle side of set square blade, Second slideway is located on connection strap 25, and set square blade is flexibly connected by connection strap 25 with the second sliding rail 6, connection strap 25 it is upper Side is equipped with the handle 26 for pushing it to slide.
Set square which is provided with the through-hole 27 and one section of arc-shaped through-hole of one section of linear as right angled triangle 28, the through-hole 27 of linear is located at 25 inside of connection strap and the scale of itself and right-angle side at this cooperates, arc-shaped through-hole Angle index is equipped with the set square at 28 edges.
Draughting board 1 include with reeded matrix and the acrylic panel that is set in the groove of matrix, extension 2 it is interior Side is inlaid with multiple LED light 29, and the light of LED light 29 laterally provides required illumination to draw transmitted through acrylic panel, prolongs The lateral surface of extending portion 2 is equipped with power interface and switch, and power interface, switch and LED light 29 are connected by power cord, power interface Cooperation general-purpose data line is connected as the power supply of LED light 29 with external power supply, and controls LED light 29 by switch, wherein switch includes Gear of the multistage for adjusting brightness.
The bottom surface of matrix is equipped with reinforcing rib, and reinforcing rib distributes as net shape, and anti-slip rubber base is equipped between the gap of reinforcing rib Seat, front side of matrix are additionally provided with the lock paper slip 10 for locking paper, and lock paper slip 10 is located above acrylic panel.
3 sizes of wherein charting are made as needed, power interface can also select as needed general-purpose interface into Row power supply.
In short, the foregoing is merely a prefered embodiment of the invention, it is all according to equivalent change made by scope of the present invention patent With modification, it should all belong to the covering scope of patent of the present invention.

Claims (10)

1. a kind of portable multi-function drafting instrument, including using draughting board (1) made of light material, it is characterised in that:System Chart board (1) is equipped with parallel rule (4), set square (8) and corner ruler (9), and draughting board (1) includes the extension (2) of edge With the drawing portion (3) at middle part, extension (2) surrounds drawing portion (3), and extension (2) is equipped with the first sliding rail (5) and along sliding rail The both ends of the ruler indexing in direction, the first sliding rail (5) and drawing portion (3) sides aligned parallel, parallel rule (4) are equipped with and the first sliding rail (5) the first slideway coordinated, parallel rule (4) are slid back and forth along the first sliding rail (5) to adjust position, and parallel rule (4) middle part is along it Length direction is equipped with the second sliding rail (6), and set square (8) is equipped with corner ruler (9) and is slided with the second of the second sliding rail (6) cooperation Road, third slideway, set square (8) horizontally slip on the second sliding rail (6) to adjust position with corner ruler (9).
2. a kind of portable multi-function drafting instrument according to claim 1, it is characterised in that:Parallel rule is also set on (4) It includes the bottom case (11) being mutually clamped to have more prismatic engineer's scales (20) and engineer's scale regulating mechanism (7), engineer's scale regulating mechanism (7) With upper cover (12), a cavity is formed between bottom case (11) and upper cover (12), at least one more prismatic engineer's scales are equipped in cavity (20), every rib of more prismatic engineer's scales (20) corresponds to a ratio graticule, and the both ends of more prismatic engineer's scales (20) are equipped with shaft (19), the end of shaft (19) is equipped with gear (17), and platform sling (18) is equipped between gear (17) and more prismatic engineer's scales (20) end, Platform sling (18) upper end is connect with upper cover (12), and shaft (19) is through platform sling (18) and can be freely rotated on platform sling (18);Bottom case (11) it is equipped with the worm screw (16) coordinated with gear (17), worm screw (16) stretches out from upper cover (12), rotary worm (16) band turn To adapt to different ratios, wherein upper cover (12) is transparent material or upper cover (12) for axis (19) and more prismatic engineer's scales (20) rotation On offer display port (14) for reading data.
3. a kind of portable multi-function drafting instrument according to claim 2, it is characterised in that:Parallel rule (4) is equipped with For the installation groove of proportion of installation ruler regulating mechanism (7), the bottom of bottom case (11) is equipped with the strip coordinated with installation groove, card Item extend into installation groove and is limited, and lock pin (15) is additionally provided on bottom case (11), and the bottom end of lock pin (15) is extended Bottom case (11) bottom, the top of lock pin (15) stretch out upper cover (12) and form a button (13), and single depression button (13) allows The close contact of lock pin (15) bottom and parallel rule (4) is locked, secondary pressing button (13) lock pin (15) bottom with put down Row ruler (4) separation releases locking.
4. a kind of portable multi-function drafting instrument according to claim 1, it is characterised in that:Corner ruler (9) includes connecting Connect pedestal (21), the knob (22) being set on pedestal and the corner ruler blade being connect with knob (22), third slideway are located at It connects on pedestal (21), the angle of corner ruler blade is adjusted by turn knob (22).
5. a kind of portable multi-function drafting instrument according to claim 4, it is characterised in that:It includes two to rotate ruler blade A linear ruler (23) being connected with each other and be mutually 90 degree, the both sides of each linear ruler (23) are respectively provided with one group of dial markings, often It is equipped with sliding slot between two groups of dial markings of a linear ruler (23), plate engineer's scale (24), plate engineer's scale are equipped in sliding slot (24) both sides are equipped with dial markings.
6. a kind of portable multi-function drafting instrument according to claim 5, it is characterised in that:Rotation ruler blade is equipped with Two-way angle scale, angle scale are located at two linear ruler (23) junctions, the connection pedestal (21) above angle scale It is equipped with the angle indicator with angle scale cooperation reading.
7. a kind of portable multi-function drafting instrument according to claim 1, it is characterised in that:Set square (8) includes three Angle square blade and connection strap (25), connection strap (25) are located on a right-angle side of set square blade, and the second slideway is located at connection On item (25), set square blade is flexibly connected by connection strap (25) with the second sliding rail (6), and the upside of connection strap (25), which is equipped with, to be used In the handle (26) for pushing its sliding.
8. a kind of portable multi-function drafting instrument according to claim 7, it is characterised in that:Set square is as right angle Triangle, which is provided with one section of linear through-hole (27) and one section of arc-shaped through-hole (28), through-hole (27) position of linear On the inside of connection strap (25) and the scale of itself and right-angle side at this cooperates, the set square at arc-shaped through-hole (28) edge It is equipped with angle index with it.
9. a kind of portable multi-function drafting instrument according to any one of claims 1 to 8, it is characterised in that:Draughting board (1) include with reeded matrix and the acrylic panel being set in the groove of matrix, the medial surface of extension (2) is inlaid with The light of multiple LED light (29), LED light (29) laterally provides required illumination, extension (2) transmitted through acrylic panel to draw Lateral surface be equipped with power interface and switch, power interface, switch and LED light (29) connected by power cord, and power interface is matched It closes general-purpose data line and is connected as LED light (29) power supply with external power supply, and LED light (29) is controlled by switch, wherein switch packet Include the multistage gear for adjusting brightness.
10. a kind of portable multi-function drafting instrument according to claim 9, it is characterised in that:The bottom surface of matrix is equipped with Reinforcing rib, reinforcing rib distribute as net shape, and anti-slip rubber pedestal is equipped between the gap of reinforcing rib, and front side of matrix is additionally provided with for locking The lock paper slip (10) of paper, lock paper slip (10) are located above acrylic panel.
CN201810220443.XA 2018-03-16 2018-03-16 A kind of portable multi-function drafting instrument Pending CN108544878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810220443.XA CN108544878A (en) 2018-03-16 2018-03-16 A kind of portable multi-function drafting instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810220443.XA CN108544878A (en) 2018-03-16 2018-03-16 A kind of portable multi-function drafting instrument

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109572287A (en) * 2018-12-17 2019-04-05 刘景典 A kind of mathematics drawing instruments
CN112356599A (en) * 2020-11-10 2021-02-12 陈颂康 Drawing device for mathematics teaching geometry
CN112874214A (en) * 2021-03-08 2021-06-01 丽水学院 Multifunctional mathematical teaching aid

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Publication number Priority date Publication date Assignee Title
CN101269600A (en) * 2008-04-15 2008-09-24 扬州大学 Combined mapper
CN202200739U (en) * 2011-07-27 2012-04-25 山东科技大学 Novel drawing ruler
CN202703031U (en) * 2012-05-30 2013-01-30 朱昱辉 Slide-rail type parallel line set square
CN202879031U (en) * 2012-09-24 2013-04-17 泰州市科进机电设备有限公司 Multifunctional straight scale
CN105584264A (en) * 2016-03-16 2016-05-18 无锡市政设计研究院有限公司 Multi-proportion range reading scale
CN206327050U (en) * 2016-11-28 2017-07-14 广州点金坊网络科技有限公司 A kind of drawing board
CN206347947U (en) * 2017-01-11 2017-07-21 湖南理工职业技术学院 A kind of special drawing scale chi of construction costs
CN206870690U (en) * 2017-04-05 2018-01-12 单莹菊 A kind of diagraph

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101269600A (en) * 2008-04-15 2008-09-24 扬州大学 Combined mapper
CN202200739U (en) * 2011-07-27 2012-04-25 山东科技大学 Novel drawing ruler
CN202703031U (en) * 2012-05-30 2013-01-30 朱昱辉 Slide-rail type parallel line set square
CN202879031U (en) * 2012-09-24 2013-04-17 泰州市科进机电设备有限公司 Multifunctional straight scale
CN105584264A (en) * 2016-03-16 2016-05-18 无锡市政设计研究院有限公司 Multi-proportion range reading scale
CN206327050U (en) * 2016-11-28 2017-07-14 广州点金坊网络科技有限公司 A kind of drawing board
CN206347947U (en) * 2017-01-11 2017-07-21 湖南理工职业技术学院 A kind of special drawing scale chi of construction costs
CN206870690U (en) * 2017-04-05 2018-01-12 单莹菊 A kind of diagraph

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109572287A (en) * 2018-12-17 2019-04-05 刘景典 A kind of mathematics drawing instruments
CN112356599A (en) * 2020-11-10 2021-02-12 陈颂康 Drawing device for mathematics teaching geometry
CN112874214A (en) * 2021-03-08 2021-06-01 丽水学院 Multifunctional mathematical teaching aid

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Application publication date: 20180918