CN106251715A - A kind of Graphing of Engineering model projection apparatus for demonstrating - Google Patents
A kind of Graphing of Engineering model projection apparatus for demonstrating Download PDFInfo
- Publication number
- CN106251715A CN106251715A CN201610887894.XA CN201610887894A CN106251715A CN 106251715 A CN106251715 A CN 106251715A CN 201610887894 A CN201610887894 A CN 201610887894A CN 106251715 A CN106251715 A CN 106251715A
- Authority
- CN
- China
- Prior art keywords
- slide unit
- projection
- turntable
- leading screw
- graphing
- 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.)
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Classifications
-
- 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
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
-
- 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
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
Abstract
A kind of Graphing of Engineering model projection apparatus for demonstrating, it relates to a kind of projection demonstration device.The present invention is to solve owing to also not having about the teaching aid of model projection demonstration on Engineering Drawing Course, the problem bringing inconvenience to the engineering graphics teaching of industry science and the cultivation of student's space imagination on existing market.Top light-passing board and the bottom support seat of the present invention be arranged in parallel up and down, bottom slide unit is arranged on the bottom support seat between many support columns, master projection turntable may be rotatably mounted on the slide unit of bottom, master projection turntable is driven to rotate in drive mechanism is arranged on bottom slide unit and through bottom slide unit, leading screw slipway mechanism is vertically installed at the side of master projection turntable, downward projection light source is arranged on the top of leading screw slipway mechanism, and downward projection light source can move up and down under the drive of leading screw slipway mechanism.The present invention demonstrates for Graphing of Engineering model projection.
Description
Technical field
The present invention relates to a kind of projection demonstration device, be specifically related to a kind of Graphing of Engineering model projection apparatus for demonstrating.
Background technology
Graphing of Engineering is a core-course in engineering education the most abstract, its objective is training student space imagination, religion
Tool is requisite in this teaching process.But in recent years, the reform of Graphing of Engineering teaching aid is more slow, and a lot of teachers are in religion
During, teaching aid being become not essential, make student be hardly formed one and recognize intuitively, this is unfavorable for that student is by institute Xue Zhi
Knowledge is digested and assimilated, and is less useful for the cultivation of student's space imagining ability, innovation ability, the ability of practice.At present, market does not has yet
Occur about the teaching aid of model projection demonstration on Engineering Drawing Course, to the engineering graphics teaching of industry science and student's space imagination
Cultivation brings inconvenience.
Summary of the invention
The invention aims to solve owing to also not drilling about model projection on Engineering Drawing Course on existing market
The teaching aid shown, the problem bringing inconvenience to the engineering graphics teaching of industry science and the cultivation of student's space imagination.And then provide
A kind of Graphing of Engineering model projection apparatus for demonstrating.
The technical scheme is that a kind of Graphing of Engineering model projection apparatus for demonstrating includes downward projection light source, top
Light-passing board, bottom support seat, leading screw slipway mechanism, master projection turntable, bottom slide unit, drive mechanism and Duo Gen support column,
Top light-passing board and bottom support seat be arranged in parallel up and down, and by many support columns between top light-passing board and bottom support seat
Supporting and connect, bottom slide unit is arranged on the bottom support seat between many support columns, and master projection turntable is rotatably pacified
It is contained on the slide unit of bottom, in drive mechanism is arranged on bottom slide unit and through bottom slide unit, drives master projection turntable to rotate,
Leading screw slipway mechanism is vertically installed at the side of master projection turntable, and downward projection light source is arranged on the upper of leading screw slipway mechanism
Portion, and downward projection light source can move up and down under the drive of leading screw slipway mechanism.
Further, bottom slide unit is disc slide unit, and the upper surface of disc slide unit offers ring at outer
Connected in star.
Further, it also includes that multiple turntable roller, the upper end of multiple turntable rollers are packed in master projection rotation
On the lower surface of turntable, the bottom slidable of multiple turntable rollers is arranged in annular groove.
Further, drive mechanism includes motor, worm-and-wheel gear and main shaft, and main shaft is the most from top to bottom
Being arranged on master projection turntable, bottom slide unit and bottom support seat, wherein main shaft projects turntable axial restraint with master
Connecting, main shaft is rotatably connected with bottom slide unit and bottom support seat, and worm-and-wheel gear is sleeved on and is positioned on bottom support seat
Main shaft on, motor is connected with worm-and-wheel gear.
Further, worm-and-wheel gear includes bearing bracket stand, worm screw and turbine, and bearing bracket stand is arranged on bottom support seat,
Worm screw is arranged on bearing bracket stand and is connected by shaft coupling with motor, and Cover For A Turbine is contained on main shaft, and turbine and worm screw phase
Engagement.
Further, leading screw slipway mechanism includes slide unit bracing frame, slide unit leading screw, slide unit top nut, slide block and handwheel,
Slide unit bracing frame is vertically installed on bottom support seat, and slide unit leading screw stretches out and is vertically located on slide unit bracing frame, slide unit top
Portion's nut driving is on slide unit leading screw, and slide block is fixedly connected on the upper end of slide unit top nut and exists with slide unit top nut driving
On slide unit leading screw, handwheel is fixedly mounted on the upper end of slide unit leading screw.
The present invention compared with prior art has the effect that
The teaching method of descriptive geometry has been done substantial amounts of Innovative advice by present stage Teaching Instruction of Engineering Graphics worker, but mostly
Being devoted to writing on the blackboard and the change of papery wall chart form, teaching aid only resides within one side projection, it is impossible to carries out multi-direction projection and changes
Face projects, and its form is single, it is impossible to reach the teaching request of geometry graphics.The rotation now connected by worm-and-wheel gear is projected
Platform, changes the locus on perspective plane, with this while realizing different views projection, reaches to change the effect of face projection.Additionally,
By the driving of motor, it is achieved automatic projection switching and the reset in specific canonical projection face.
This device passes through fine rule and slide unit, carrys out tensioning and fixes object to be projected so that it is the position of space geometrical element keeps
Constant, and by worm-and-wheel gear, by motor around the rotary motion that convert rotational motion is projector mechanism of axle, with this
Produce the perspective plane being in different spatial, it is achieved replace the purpose on old perspective plane with new projection plane, so that space is several
What element becomes the position accurately expressing thing geometry to be projected beneficially directly perceived to the relative position of new projection plane, then looks for
Going out its projection on new projection plane, final realization changes face method.Better effects is obtained, by Single-chip Controlling in terms of machine driving
Motor changes the anglec of rotation, and rapid operation is convenient.While meeting performance requirement, make this teaching aid assemble simple, one-tenth as far as possible
This is lower.
Accompanying drawing explanation
Fig. 1 is the isometric drawing of model projection teaching aid；
Fig. 2 is the side view of projection model teaching aid shown in Fig. 1；
Fig. 3 is the top view of model projection teaching aid shown in Fig. 1；
Fig. 4 is A-A sectional view in the model projection teaching aid top view shown in Fig. 2；
Fig. 5 is Fig. 4 partial enlarged drawing at I；
Fig. 6 is Fig. 4 partial enlarged drawing at II；
Fig. 7 is B-B sectional view in the model projection teaching aid top view shown in Fig. 2；
Fig. 8 is Fig. 7 partial enlarged drawing at III.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 to Fig. 8 and present embodiment is described, a kind of Graphing of Engineering mould of present embodiment
Type projection demonstration device includes that downward projection light source 1, top light-passing board 2, bottom support seat 7, leading screw slipway mechanism, master project
Turntable 5, bottom slide unit 6, drive mechanism and Duo Gen support column 19,
Top light-passing board 2 and bottom support seat about 7 be arranged in parallel, and logical between top light-passing board 2 and bottom support seat 7
Too much root support column 19 supports and connects, and bottom slide unit 6 is arranged on the bottom support seat 7 between many support columns 19, master
Projection turntable 5 may be rotatably mounted on bottom slide unit 6, carries in drive mechanism is arranged on bottom slide unit 6 and through bottom slide unit 6
Dynamic master projection turntable 5 rotates, and leading screw slipway mechanism is vertically installed at the side of master projection turntable 5, downward projection light
Source 1 is arranged on the top of leading screw slipway mechanism, and downward projection light source 1 can move up and down under the drive of leading screw slipway mechanism.
Detailed description of the invention two: combine Fig. 1 to Fig. 5 and present embodiment is described, the bottom slide unit 6 of present embodiment is disk
Shape slide unit, and the upper surface of disc slide unit offers annular groove at outer.It is arranged such, it is simple in the process of use
In, under the drive of drive mechanism, it is capable of the rotation of master projection turntable 5 and the static of bottom slide unit 6.Other composition
Identical with detailed description of the invention one with annexation.
Detailed description of the invention three: combine Fig. 5 and present embodiment is described, present embodiment also include multiple turntable roller
8, the upper end of multiple turntable rollers 8 is packed on the lower surface of master projection turntable 5, the bottom of multiple turntable rollers 8
Can be slidably mounted in annular groove.It is arranged such, simple in construction, it is easy to accomplish, and in master projection turntable 5 and bottom
Slip between slide unit 6 is more smoothly, is difficult to stuck phenomenon occur, and the upper end of the most multiple turntable rollers 8 is packed in master
On the lower surface of lateral projection's turntable 5, use more safe and reliable.Other composition and annexation and detailed description of the invention one
Or two is identical.
Detailed description of the invention four: combine Fig. 2, Fig. 4 and Fig. 6 and present embodiment is described, the drive mechanism bag of present embodiment
Including motor 21, worm-and-wheel gear 13 and main shaft 10, main shaft 10 is vertically the most from top to bottom arranged on master projection and rotates
On platform 5, bottom slide unit 6 and bottom support seat 7, wherein main shaft 10 and master projection turntable 5 axial restraint is connected, main shaft 10 and
Bottom slide unit 6 and bottom support seat 7 are rotatably connected, and worm-and-wheel gear 13 is sleeved on the main shaft being positioned on bottom support seat 7
On 10, motor 21 is connected with worm-and-wheel gear 13.It is arranged such, simple in construction, it is easy to accomplish, it is simple to more stable
Driving the rotation that master projection turntable 5 carries out 360 degree, the anglec of rotation about master projection turntable 5 can be by infrared distant
Control device control single chip computer, the rotating speed of Single-chip Controlling motor 21 and rotating, motor 21 controls worm and gear and carries out
Rotate, drive the rotation of master projection turntable 5 finally by turbine.Other composition and annexation and detailed description of the invention one
Or three is identical.
Detailed description of the invention five: combine Fig. 4 and Fig. 6 and present embodiment is described, the worm-and-wheel gear 13 of present embodiment
Including bearing bracket stand 11, worm screw 12 and turbine 13, bearing bracket stand 11 is arranged on bottom support seat 7, and worm screw 12 is arranged on bearing bracket stand 11
Above and being connected by shaft coupling with motor 21, turbine 13 is sleeved on main shaft 10, and turbine 13 is meshed with worm screw 12.As
This is arranged, and drives more reliable and more stable.Other composition is identical with detailed description of the invention four with annexation.
Detailed description of the invention six: combine Fig. 1, Fig. 2, Fig. 4 and Fig. 7 and present embodiment is described, the leading screw of present embodiment is sliding
Platform mechanism includes that slide unit bracing frame 3, slide unit leading screw 15, slide unit top nut 16, slide block 17 and handwheel 20, slide unit bracing frame 3 erect
Directly being arranged on bottom support seat 7, slide unit leading screw 15 stretches out and is vertically located on slide unit bracing frame 3, slide unit top nut 16
Being screwed on slide unit leading screw 15, slide block 17 is fixedly connected on the upper end of slide unit top nut 16 and screws with slide unit top nut 16
On slide unit leading screw 15, handwheel 20 is fixedly mounted on the upper end of slide unit leading screw 15.It is arranged such, by handwheel 20 according to reality
The needs given lessons, rotation hand wheel 20 adjusts slide unit top nut 16 and slide block 17 moves up and down on slide unit leading screw 15,
Thus drive the distance between downward projection light source 1 and top light-passing board 2 to realize the adjustment of light source height.Other forms and connects
The relation that connects is identical with detailed description of the invention five.
Detailed description of the invention seven: combine Fig. 7 and present embodiment is described, the lower end of the slide unit leading screw 15 of present embodiment can turn
Move and be arranged on bottom support seat 7.It is arranged such, it is simple to the rotation of handwheel 20.Other composition and annexation be embodied as
Mode one, two, three, four, five or six are identical.
Detailed description of the invention eight: combine Fig. 7 and present embodiment is described, the leading screw slipway mechanism of present embodiment also includes many
Root slide unit guide rail 18, many slide unit guide rails 18 are vertically located on the slide block 17 in slide unit bracing frame 3.It is arranged such so that sliding
Block 17 can slide up and down along slide unit guide rail 18, it is ensured that the accuracy of teaching aid of giving lessons use and exercisable stability.
Other composition is identical with detailed description of the invention seven with annexation.
Detailed description of the invention nine: combine Fig. 1 and present embodiment is described, the quantity of many support columns 19 of present embodiment is
3.Being arranged such, top light-passing board 2 and bottom support seat just can firmly be supported and connect by three support columns, meanwhile, also
The observation of student during enough spaces are easy to give lessons can be reserved.Other composition and annexation and detailed description of the invention
Seven or eight is identical.
Detailed description of the invention ten: combine Fig. 1 and Fig. 4 and present embodiment is described, the main shaft 10 of present embodiment is thrown with master
Realize axial restraint by key between shadow turntable 5 to connect, and between the endoporus of main shaft 10 and master projection turntable 5, gap is joined
Close.Be arranged such, easy to connect reliably.Other composition and annexation and detailed description of the invention seven, eight or nine are identical.
Further, the present invention can use this embodiment to implement in actual mechanical process: includes external frame
Shelf structure, source of parallel light (i.e. downward projection light source 1), projection model, suspension line, lead screw guide rails mechanism (i.e. leading screw slide unit machine
Structure), worm-and-wheel gear, perspective plane, single-chip microcomputer, motor, ring-shaped guide rail workbench (i.e. master projection turntable 5).Throw
Shadow face and source of parallel light geo-stationary, and move along circular orbit on ring-shaped guide rail workbench.Object model magnetic plate forms
Frame structure, freely assembled assembling, it is achieved the target of a thing multimode.Hitch uses the most all uses transparent fine rule to hang,
Top raises with lead screw guide rails mechanism and hangs platform tensioning fine rule, it is intended to ensure that suspended model rocks the most easily.Outer frame structure
Employing rack material supports, and two-layer round platform is arranged at base top, convenient for summary, and what distance base was near is referred to as the first round platform, distance
Base referred to as the second round platform farther out.Containing mechanical transmission structure between base and the first round platform, utilize worm and gear to drive and throw
Shadow face and source of parallel light rotate, and worm screw, by monolithic processor controlled step motor drive, is inserted by four between the first round platform and base
Pin is fixing, it is intended to do not produce relative motion.Turbine and central shaft matched in clearance, bearing between central shaft and base and the first round platform
Connecting, central shaft and the second round platform bearing use the interference fit of basic hole system.Have in distance outer 1-2 centimeters on first round platform
Annulus guide rail.Second round platform divides equally four axles of consolidation at the first round platform annulus guide rail position, and shaft end bearing rolls in guide rail.
Rack material supports top light-passing board, light-passing board has same annulus guide rail, perspective plane and light source top have two axles respectively
Hold and roll in track.Light-passing board top is to overlook light source, has the thin line hanging point of suspended model in the middle of light source, and light source with
Guide rail consolidation on leading screw, lead screw guide rails upper handle is used for controlling light source base height, thus realizes regulating light source distance and opening
Tight suspension line.Single chip control module: control motor rotating cycle by mcu programming, and by Theoretical Calculation and reality
Border is debugged, and draws the corresponding relation of motor rotating cycle and worktable rotary angle.Based on debugging result, utilize infrared distant
Control arranges different button controls and rotates different fixed angles, such as, after determining initial position, determine that this position is main
View, it is side view that Single-chip Controlling motor makes perspective plane and source of parallel light turn clockwise 90 ° simultaneously, Single-chip Controlling
Motor makes perspective plane and source of parallel light turn clockwise 45 ° simultaneously and changes face projection, further single-chip microcomputer control for level 45 °
Source of parallel light directly over rounding platform, controls light source switch after having demonstrated the projection of front view and side view, carries out top view
Demonstration, obtains downward projection on the second round platform.
Fig. 1 is the overall structure that the isometric drawing of model projection teaching aid illustrates the present invention.Optical projection system is positioned at props up
Support lower portion.Turbine and worm mechanism 13 is laid on seat 7 and motor 21 is drive mechanism, such as figure as in figure 2 it is shown, support
Shown in 6, turbine and worm partial sectional view, worm screw 12 is supported by bearing bracket stand 11 and engages with turbine 13, and by shaft coupling and stepping electricity
Machine 21 connects transmission moment of torsion.Motor 21 work drives worm screw 12 to rotate, and further drives turbine 13 to move, turbine 13 with
Master projection turntable main shaft 10 pin connects and matched in clearance.Master projection turntable main shaft 10 lower end by bearings 14 and support seat
7 connect, and can produce slip relatively；Master projection turntable main shaft 10 middle and upper part is connected with bottom slide unit 6 by bearing 9, and bottom is sliding
Platform 6 is connected with support seat 7 by bonded, keeps geo-stationary；Master projection turntable main shaft 10 upper end is thrown with master by key
Shadow turntable 5 connects, and matched in clearance；As shown on the right side of Fig. 4, master projection turntable 5 by master projection rotate estrade 8 with
Bottom slide unit 6 connects, and slide unit has round circular orbit；Top light-passing board 2 has round circular orbit, and is projected turntable by master
Son 8 is connected with master projection turntable 5.Further, worm gear 13 drives master projection turntable main shaft 10 to rotate, and then drives
Master projection turntable 5 rotates, owing to master projection rotates estrade 8 and top light-passing board 2 and bottom slide unit 6 relative motion,
Reach to switch the effect on perspective plane.
Fig. 5 is leading screw slipway mechanism, including slide unit bracing frame 3, slide unit leading screw 15, slide unit guide rail 18, slide block 17, slide unit top
Portion's nut 16, handwheel 20 etc..Slide unit guide rail 18 is connected with supporting base 7, bearing between slide unit leading screw 15 lower end and support base 7
Connect, can relatively slide；Slide unit leading screw 15 upper end is connected with handwheel 20, and handwheel 20 rotation drives slide unit leading screw 15 to rotate thus adjusts
Joint slide block 17 position.Slide block 17 is connected with downward projection light source 1, and slide block 17 motion drives downward projection light source 1 to move thus adjusts
Joint light source height；Further, it is to have suspended model in the middle of master projection turntable main shaft 10 top and downward projection light source 1
Transparent fine rule, after having hung model, raises the position of downward projection light source 1, while tensioning fine rule, adjusts light source and waits to throw
Shadow thing is relative to the relation of position, it is intended to while keeping model stability, reach good drop shadow effect.
Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, art technology
Personnel can also do other changes in spirit of the present invention, and is applied in the NM field of the present invention, and certainly, these depend on
The change done according to present invention spirit all should be included in scope of the present invention.
Claims (10)
1. a Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: it includes downward projection light source (1), top printing opacity
Plate (2), bottom support seat (7), leading screw slipway mechanism, master projection turntable (5), bottom slide unit (6), drive mechanism and Duo Gen
Support column (19),
Top light-passing board (2) and bottom support seat (7) be arranged in parallel up and down, and top light-passing board (2) and bottom support seat (7) it
Between support and connect by many support columns (19), bottom slide unit (6) is arranged on the bottom support between many support columns (19)
On seat (7), master projection turntable (5) may be rotatably mounted on bottom slide unit (6), and drive mechanism is arranged on bottom slide unit (6)
In and through bottom slide unit (6) drive master projection turntable (5) rotate, leading screw slipway mechanism be vertically installed at master projection revolve
The side of turntable (5), downward projection light source (1) is arranged on the top of leading screw slipway mechanism, and downward projection light source (1) is at leading screw
Can move up and down under the drive of slipway mechanism.
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: bottom slide unit (6) is
Disc slide unit, and the upper surface of disc slide unit offers annular groove at outer.
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: it also includes multiple rotation
Turntable roller (8), the upper end of multiple turntable rollers (8) is packed on the lower surface of master projection turntable (5), multiple rotations
The bottom slidable of platform roller (8) is arranged in annular groove.
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: drive mechanism includes step
Entering motor (21), worm-and-wheel gear (13) and main shaft (10), main shaft (10) is vertically the most from top to bottom arranged on master projection
On turntable (5), bottom slide unit (6) and bottom support seat (7), wherein main shaft (10) and master projection turntable (5) are axially solid
Fixed connection, main shaft (10) is rotatably connected with bottom slide unit (6) and bottom support seat (7), and worm-and-wheel gear (13) is sleeved on
Being positioned on the main shaft (10) on bottom support seat (7), motor (21) is connected with worm-and-wheel gear (13).
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: worm-and-wheel gear
(13) including bearing bracket stand (11), worm screw (12) and turbine (13), bearing bracket stand (11) is arranged on bottom support seat (7), worm screw
(12) being arranged on bearing bracket stand (11) above and to be connected by shaft coupling with motor (21), turbine (13) is sleeved on main shaft (10)
On, and turbine (13) is meshed with worm screw (12).
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: leading screw slipway mechanism bag
Include slide unit bracing frame (3), slide unit leading screw (15), slide unit top nut (16), slide block (17) and handwheel (20), slide unit bracing frame
(3) being vertically installed on bottom support seat (7), slide unit leading screw (15) stretches out and is vertically located on slide unit bracing frame (3), slide unit
Top nut (16) is screwed on slide unit (15), and slide block (17) is fixedly connected on the upper end at slide unit top nut (16) and with slide unit
Top nut (16) is screwed on slide unit leading screw (15), and handwheel (20) is fixedly mounted on the upper end of slide unit leading screw (15).
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: slide unit leading screw (15)
Lower end may be rotatably mounted on bottom support seat (7).
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: leading screw slipway mechanism is also
Including many slide unit guide rails (18), many slide unit guide rails (18) are vertically located on the slide block (17) in slide unit bracing frame (3).
9. according to Graphing of Engineering model projection apparatus for demonstrating a kind of described in claim 1 or 8, it is characterised in that: many support columns
(19) quantity is 3.
A kind of Graphing of Engineering model projection apparatus for demonstrating, it is characterised in that: main shaft (10) is with main
Realize axial restraint by key between lateral projection's turntable (5) to connect, and main shaft (10) projects the endoporus of turntable (5) with master
Between matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887894.XA CN106251715A (en) | 2016-10-11 | 2016-10-11 | A kind of Graphing of Engineering model projection apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887894.XA CN106251715A (en) | 2016-10-11 | 2016-10-11 | A kind of Graphing of Engineering model projection apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106251715A true CN106251715A (en) | 2016-12-21 |
Family
ID=57612340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610887894.XA Pending CN106251715A (en) | 2016-10-11 | 2016-10-11 | A kind of Graphing of Engineering model projection apparatus for demonstrating |
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| Country | Link |
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| CN (1) | CN106251715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894331A (en) * | 2017-11-21 | 2018-04-10 | 西安航空制动科技有限公司 | Rotatable brake gear support base in a kind of high-low temperature chamber |
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| CN103927924A (en) * | 2014-04-15 | 2014-07-16 | 西南交通大学 | All-dimensional exhibition device for spatial model demonstrations |
| CN104318812A (en) * | 2014-10-10 | 2015-01-28 | 西安理工大学 | View projection demonstrator |
| CN105070153A (en) * | 2015-07-31 | 2015-11-18 | 湖南科技大学 | Multi-surface orthographic projection drawing geometry teaching instrument |
| CN206421603U (en) * | 2016-10-11 | 2017-08-18 | 东北林业大学 | A kind of Graphing of Engineering model projection apparatus for demonstrating |
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- 2016-10-11 CN CN201610887894.XA patent/CN106251715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184660A (en) * | 2011-05-06 | 2011-09-14 | 邵金龙 | Projection teaching tool and multifunctional teaching drawing desk |
| CN103927924A (en) * | 2014-04-15 | 2014-07-16 | 西南交通大学 | All-dimensional exhibition device for spatial model demonstrations |
| CN104318812A (en) * | 2014-10-10 | 2015-01-28 | 西安理工大学 | View projection demonstrator |
| CN105070153A (en) * | 2015-07-31 | 2015-11-18 | 湖南科技大学 | Multi-surface orthographic projection drawing geometry teaching instrument |
| CN206421603U (en) * | 2016-10-11 | 2017-08-18 | 东北林业大学 | A kind of Graphing of Engineering model projection apparatus for demonstrating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107894331A (en) * | 2017-11-21 | 2018-04-10 | 西安航空制动科技有限公司 | Rotatable brake gear support base in a kind of high-low temperature chamber |
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Application publication date: 20161221 |
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