CN106781968B - The straight line three-plane projection demonstration board of carrying space model scale positioning - Google Patents
The straight line three-plane projection demonstration board of carrying space model scale positioning Download PDFInfo
- Publication number
- CN106781968B CN106781968B CN201611134921.2A CN201611134921A CN106781968B CN 106781968 B CN106781968 B CN 106781968B CN 201611134921 A CN201611134921 A CN 201611134921A CN 106781968 B CN106781968 B CN 106781968B
- Authority
- CN
- China
- Prior art keywords
- projection
- dynamic
- point
- fixed point
- line
- 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.)
- Active
Links
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
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Toys (AREA)
Abstract
A kind of straight line three-plane projection demonstration board of carrying space model scale positioning, including projection plate, space line model mechanism, projection join line mechanism, mechanism of linear projection and linkage mechanism.The structure that the present invention is added spatial model on the basis of the straight line three-plane projection demonstration board of former flexible drawing and linked with linear projection using linear space model, the change in location for more intuitively showing space line project the relationship of variation with it.It is easy to operate, as long as controlling the front projection of braking point when use, dynamic point floor projection can be affected automatically, further according to the position of the dynamic point side projection of scale movement of dynamic floor projection, 7 kinds of frontal line of space line, horizontal line, profile line, vertical frontal line, plumb line, vertical profile line and parallax positions can be shown.Demonstrating effect is obviously improved.Keep straight line three-plane projection demonstration board more perfect.
Description
Technical field
The present invention relates to the carrying space model scale positioning used in a kind of demonstration teaching aid, especially Engineering Drawing Course
Straight line three-plane projection demonstration board.
Background technology
In Engineering Drawing Course, indicate that the spatial position of straight line is determined by the projection on three perspective planes, i.e. straight line
Front projection, floor projection and side projection, straight line indicates by the straightway comprising two endpoints, it is desirable that must assure that same
The line vertical Z axis of the front projection of a endpoint and the line vertical X axis of floor projection, front projection and side projection, it is horizontal
Project to distance of the distance equal to side projection to Z axis of X-axis.Space line has seven kinds of situations with respect to the position on perspective plane, point
It is not frontal line, horizontal line, profile line, vertical frontal line, plumb line, vertical profile line and parallax to need in Engineering Drawing Course teaching
This seven kinds of straight lines are demonstrated respectively with front projection, floor projection and side projection.Currently, it is to use seven to demonstrate this seven kinds of straight lines
A mock-up teaching aid.The disadvantage is that model quantity is more, and it is bulky, it carries, mobile and suspension inconvenience.Author is in preceding invention
The straight line three-plane projection demonstration board of flexible drawing（2016103993212）It is empty without straight line although solving the above problem
Between model, cannot be lively, direct presentation space straight line variation and corresponding projection change.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of straight line three-plane projection demonstration of carrying space model scale positioning
Plate, the present invention add spatial model on the basis of former flexible drawing straight line three-plane projection's demonstration board and use linear space mould
The structure of type and linear projection linkage more shows the relationship for the variation that the change in location of space line is projected with it, makes straight line three
Face projection demonstration plate is more perfect.
The technical solution adopted by the present invention to solve the technical problems is：It throws in three face of straight line of carrying space model scale positioning
Shadow demonstration board includes projection plate, space line model mechanism, projection join line mechanism, mechanism of linear projection and linkage mechanism.
Projection plate is equipped with X-axis, YH axis, Yw axis and Z axis, and projection plate is divided into orthographic projection by X-axis, YH axis, Yw axis and Z axis
Face, horizontal plane, lateral projection face and the faces YH Yw.The faces YH Yw are equipped with angle separated time.If the endpoint of space line section is fixed point
With dynamic point.Fixed point is motionless point, and frontal plane of projection, floor projection and the side projection of fixed point are respectively equipped with fixed point slot, pinpoint slot
It is ladder circular hole.The frontal plane of projection of fixed point and the line vertical X axis of floor projection, the frontal plane of projection of fixed point and the company of side projection
The floor projection of line vertical Z axis, above-mentioned two lines and fixed point to the horizontal line of angle separated time, fixed point side projection to angle separated time
Vertical line form a rectangle, be set as fixed point projection join line.X-axis, YH axis, Yw axis, Z axis, fixed point projection join line and angle separated time
Truncation surface is rectangular channel.
Space line model mechanism includes that fixed point frame, fixed point frame bearing, fixed point strut, fixed point ball, fixed point axis, space are straight
Line, dynamic penalty kick, guide rod, pin, guide rod cap.Fixed point frame is fixed on by screw on projection plate, and fixed point frame is by Z-shaped plate and cylinder structure
At cylinder is equipped with stepped hole, and fixed point frame bearing is installed in stepped hole, pinpoints and is equipped with fixed point strut in frame bearing, pinpoints strut
The other end be cut into flat；Fixed point ball cuts with fixed point ball groove, and fixed point ball groove and the flat contact surface for pinpointing strut are clearance fits,
The flat and fixed point round bur for pinpointing strut have through-hole, and fixed point axis is equipped in through-hole, and fixed point axis connects fixed point strut and fixed point ball
It connects together, fixed point ball can be around fixed point strut rotation.Fixed point ball is fixedly connected with one end of space line, and the space line other end is fixed
Penalty kick is moved in connection, moves penalty kick and is equipped with dynamic point ball groove, it includes guide rod to move in point ball groove, and guide rod is cylindrical tube；Dynamic penalty kick and guide rod by
Pin connects, and guide rod is equipped with stem guiding trough, and pin can slide back and forth in stem guiding trough, and penalty kick is made to be moved forward and backward along guide rod；Guide rod
The cylindrical tube of rear end is shut by thin-walled, and linear type hole is cut at thin-walled, and the front projection of dynamic point is connected to linear type hole, is led
Bar is always perpendicular to perspective plane.
Projection join line mechanism includes pan carriage, change gear, change gear axis, pulley, pulley spindle, flexible strand, rope support.Pan carriage has two
It is a, it is upper pan carriage and left frame respectively.Pan carriage is c-type strip structure, and pan carriage both ends are hooked on projection plate.Translation
Frame is equipped with bar shaped locating slot, is provided with sliding slot on locating slot, sliding slot is narrower than locating slot.Under half section of the upper pan carriage right side and left frame
Half section is equipped with scale, and scale mark is zero-based incremental sequential digit values, if the centre of upper pan carriage and left frame
Scale value is zero.Left frame upper end is equipped with change gear axis, is cased with change gear on change gear axis, change gear rides over projection plate upper end.It is projecting
Behind plate, upper pan carriage and left frame both ends are respectively equipped with pulley spindle, are cased with pulley on pulley spindle, and pulley sets that there are two sliding
Road, each slideway are respectively wound with a flexible strand, and flexible strand shares four, are wound with two flexible strands on each pulley, every
The both ends of flexible strand are separately fixed on the rope support of projection plate two sides.Rope support shares eight, and rope support is symmetrically fixed on by screw
On the angle of four sides of projection plate.Every flexible strand bypasses pulley rear steering to another pulley of the same pan carriage, then turns
It is connect to rope support, at Z or anti-Z shapes；The fixation of another flexible strand corresponding thereto and trend and previous flexible strand pair
Claim, two flexible strands are opposite with the winding direction of the same pulley；To ensure that pan carriage can the translational motion on projection plate.
Mechanism of linear projection includes fixed point, dynamic point, linear projection and dynamic spot projection line, and fixed point includes that fixed point front is thrown
Shadow, point level projection and fixed point side projection, each projection are made of fixed point bearing, shaft, fixed point wind spring and linear projection,
Fixed point bearing is installed, fixed point bearing inner race is installed with shaft, and shaft is equipped with fixed point wind spring, pinpoints wind spring in fixed point slot
Inner end connect with shaft, the outer end for pinpointing wind spring is connect with linear projection, and linear projection is flexible thin strip, is being divided into straight line just
Face projection, straight horizontal projection and straight line side projection, for linear projection's one ends wound on fixed point wind spring, the other end reaches throwing
On shadow plate, connected with dynamic point；Linear projection is always exceptionally straight on projection plate under the pulling of fixed point wind spring, and length is variable.?
Point level is projected and is pinpointed at side projection, and point level projection hat and fixed point side projection are cased on the outside of fixed point bearing inner race
Cap, point level projection hat and fixed point side projection cap are equipped with fixed point and are open, and linear projection reaches projection by pinpointing opening
On plate, it is connect with dynamic spot projection.
Dynamic point includes dynamic point front projection, dynamic point floor projection and dynamic point side projection, and each projection is thrown by sliding block, dynamic point
Shadow fixture block, pin, dynamic point shell, dynamic spot projection line and dynamic point cap composition, dynamic point floor projection further include dynamic point wind spring.Sliding block is
The assembly of cuboid and cylinder with cylindrical hole is set in cylindrical hole there are two dynamic spot projection fixture block, moves spot projection folder
Block is half ladder circle cylindricality, and two dynamic spot projection fixture blocks connect into stepped cylindrical by pin, and moving spot projection fixture block can be in sliding block
Rotation in through-hole；Dynamic spot projection fixture block transfer point front projection fixture block, dynamic point floor projection fixture block and dynamic point side projection fixture block,
Dynamic point floor projection fixture block is identical with dynamic point side projection fixture block shape, and dynamic point front projection fixture block exists than another two projection fixture block
The more T-shape blocks in front end, T-shape block is inserted into the "-" type hole of guide rod to be connected with guide rod.The rectangular body side surface of sliding block with
The locating slot side of pan carriage coordinates, and cylindrical surface and the pan carriage sliding slot two sides of sliding block coordinate, and sliding block can be in locating slot and cunning
Sliding in slot.Linear projection is clamped in contact surface between two dynamic spot projection fixture blocks, linear projection is fixedly connected on pin
On dynamic spot projection fixture block.Dynamic wind spring inner end of dynamic point floor projection is fixedly connected on the cylinder of sliding block, moves the outer of point wind spring
End is connect with dynamic spot projection line.The outside of three projections of dynamic point is cased with dynamic spot projection shell, moves spot projection shell transfer point front and throws
Shadow shell, dynamic point floor projection shell and dynamic point survey face project shell, and it is cylindrical tube to move spot projection shell, cuts with rectangular channel and translation thereon
Frame coordinates.Dynamic spot projection line is a flexible flexible strand, moves driven floor projection shell upper end of spot projection line
After circular hole is drawn, it is fixedly connected on the lower end of dynamic point front projection shell.Under dynamic point wind spring and dynamic spot projection line elastic reaction,
Always give dynamic point floor projection shell to dynamic one, front projection direction pulling force.Dynamic point cap is divided into dynamic point front projection cap（40）,
Dynamic point floor projection cap and dynamic point side projection cap, move point front projection cap（40）It is equipped with cylindrical hole, so that guide rod passes through.
Dynamic point cap is by tight fit connection on the external cylindrical surface of dynamic point shell.
Linkage mechanism include pin, guide rod, pipe cut, flexible pipe, pipe ring frame, flexible pipe support, steel wire rope, wire rope pulley,
Steel wire rope support, wire rope pulley axis.It is equipped with pipe in the pipe of guide rod to cut, it is sheet that pipe, which is cut, is one with guide rod；One end of flexible pipe
It is fixed on pipe to cut, pipe ring frame is fixed on dynamic point front projection shell, and flexible pipe support is fixed in the middle part of left frame, and flexible pipe is worn
The outside that stem guiding trough guides to guide rod is crossed, left frame flexibility pipe support top is fixed on, the length of flexible pipe depends on space line
Required length when being plumb line.Steel wire rope support is fixed on left frame lower end by screw, and steel wire rope support is equipped with steel wire rope
Pulley spindle is cased with wire rope pulley on wire rope pulley axis；Steel wire rope is equipped in flexible pipe, steel wire rope can move in flexible pipe
It is dynamic.Steel wire rope one end is fixed on the pin of dynamic penalty kick, is passed through flexible pipe and dynamic point floor projection shell, is slided further around steel wire rope is crossed
Wheel, it is following that u-turn is fixed on dynamic point floor projection shell.When with moving dynamic penalty kick down on hand, steel wire rope is moved in flexible pipe without opposite
Dynamic, drive left frame moves left and right and upper pan carriage moves up and down, while the front projection of dynamic point being driven to move up and down,
And the floor projection of dynamic point is only moved left and right with pan carriage, cannot be moved up and down；When with moving dynamic penalty kick before and after hand, the water of point is moved
While flat projection is moved left and right with pan carriage, moreover it is possible to move up and down；This is because moving dynamic penalty kick forward, the pin of penalty kick is moved
Steel wire rope Forward is pulled, drives dynamic point floor projection to move down by steel wire rope；When moving dynamic penalty kick backward, after the steel wire rope at pipe section
It moves, it is upward that dynamic point wind spring hauls dynamic point floor projection shell.The dynamic point floor projection amount of moving up and down be exactly equal to dynamic penalty kick it is rear before
Amount of movement；Meet projection law.To realize that the position for moving penalty kick and the position of dynamic point floor projection are linked, point side projection is moved
Upper and lower position automatically determined by upper pan carriage, move point side projection left and right position according to the dynamic scale value for putting floor projection hand again
It is dynamic to be adjusted to corresponding position.The length of steel wire rope depends on required length when space line is vertical profile line.
Perspective plane, guide rod, guide rod cap, flexible pipe, steel wire rope, steel wire rope support and fixed point frame using white, space line and
Linear projection is using blue, and fixed point ball, dynamic penalty kick, dynamic spot projection and fixed point projection are using red, projection join line, font and scale
Using black, pan carriage uses transparent material.
The beneficial effects of the invention are as follows：It is more intuitive aobvious using the structure of space line model mechanism and linear projection's linkage
The relationship for the variation that the change in location of existing space line is projected with it.It is easy to operate, as long as the front projection of control braking point, automatically
Dynamic point floor projection is affected, then reads the position of the dynamic point side projection of scale value determination of dynamic point floor projection, so as to show
7 kinds of positions of straight line.Demonstrating effect is obviously improved.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the integrally-built front stereogram of expression.
Fig. 2 is the integrally-built rear isometric view of expression.
Fig. 3 is front view.
Fig. 4 is the left view in Fig. 3 upper edge AA cuttings.
Fig. 5 is the rearview in Fig. 4 upper edge EE cuttings.
Fig. 6 is tiltedly to cut open partial view of becoming a full member in Fig. 3 upper edge BB cuttings.
Fig. 7 is the rearview in Fig. 4 upper edge FF cuttings.
Fig. 8 is tiltedly to cut open partial view of becoming a full member in Fig. 3 upper edge CC cuttings.
Fig. 9 is the partial sectional view in Fig. 8 upper edge DD cuttings.
Figure 10 is the partial sectional view in Fig. 4 upper edge GG cuttings.
Figure 11 be I on Fig. 4 at partial enlarged view.
Figure 12 be II on Fig. 4 at partial enlarged view.
Figure 13 be III on Fig. 4 at partial enlarged view.
Figure 14 be IV on Fig. 7 at partial enlarged view.
Figure 15 is the embodiment of frontal line projection.
Figure 16 is the embodiment of horizontal line projection.
Figure 17 is the embodiment of profile line projection.
Figure 18 is the embodiment of vertical frontal line projection.
Figure 19 is the embodiment of vertical line projection.
Figure 20 is the embodiment of vertical profile line projection.
1. flexible pipe in figure, 2. dynamic point ball grooves, 3. dynamic penalty kicks, 4. guide rod caps, 5. change gear axis, 6. space lines, 7.
Fixed point ball, 8. fixed point ball grooves, 9. fixed point framves, 10. dynamic spot projection lines, 11.Z axis, 12. flexible pipe supports, 13. fixed point throwings
Shadow line, 14. fixed point side projection caps, 15. straight line side projections, 16. fixed point slots, 17. dynamic point side projection caps, 18. steel
Cord, 19. steel wire rope supports, 20. rope supports, 21. jiaos of separated times, 22. Yw axis, 23. projection plates, 24. pulley spindles, 25. YH axis,
26. pulley, 27. point level projection hats, the projection of 28. straight horizontals, 29. dynamic point floor projection caps, 30. fixed point axis
It holds, 31. left framves, 32. sliding slots, 33. X-axis, pan carriage on 34., 35. flexible strands, 36. fixed point frame bearings, 37.
Strut is pinpointed, 38. straight line front projections, 39. dynamic point front projection shells, 40. move point front projection caps, and 41. dynamic points are horizontal
Shell is projected, 42. change gears, 43. wire rope pulleys, 44. guide rods, 45. stem guiding troughs, 46. dynamic point wind springs, 47. pinpoint wind springs,
48. shaft, 49. pipe ring framves, 50. locating slots, 51. fixed point axis, 52. sliding blocks, 53. pins, 54. dynamic point front projection folders
Block, 55. pins, 56. pipes are cut, 57. dynamic point floor projection fixture blocks, 58. wire rope pulley axis, 59. fixed point openings, 60. quarters
Degree.
Specific implementation mode
In Fig. 1 to Figure 14, connection and position relationship and the parallax of the contexture and parts of the present invention are indicated
Embodiment.The straight line three-plane projection demonstration board of carrying space model scale positioning includes projection plate（23）, space line prototype
Structure, projection join line mechanism, mechanism of linear projection and linkage mechanism.
Projection plate（23）It is equipped with X-axis（33）, YH axis（25）, Yw axis（22）And Z axis（11）, X-axis（33）, YH axis（25）,
Yw axis（22）And Z axis（11）Projection plate（23）It is divided into frontal plane of projection, horizontal plane, lateral projection face and the faces YH Yw.YH Yw
Face is equipped with angle separated time（21）.If the endpoint of space line section is fixed point and dynamic point.Fixed point is motionless point, the orthographic projection of fixed point
Face, floor projection and side projection are respectively equipped with fixed point slot（16）, pinpoint slot（16）It is ladder circular hole.The frontal plane of projection of fixed point and
The line vertical X axis of floor projection（33）, the frontal plane of projection of fixed point and the line vertical Z axis of side projection（11）, above-mentioned two
The floor projection of line and fixed point is to angle separated time（21）Horizontal line, fixed point side projection to angle separated time（21）Vertical line composition
One rectangle is set as fixed point projection join line（13）.X-axis（33）, YH axis（25）, Yw axis（22）, Z axis（11）, fixed point projection join line
（13）With angle separated time（21）Truncation surface be rectangular channel.
Space line model mechanism includes fixed point frame（9）, fixed point frame bearing（36）, fixed point strut（37）, fixed point ball（7）,
Pinpoint axis（51）, space line（6）, dynamic penalty kick（3）, guide rod（44）, pin（55）, guide rod cap（4）.Pinpoint frame（9）By screw
It is fixed on projection plate（23）On, pinpoint frame（9）It is made of Z-shaped plate and cylinder, cylinder is equipped with stepped hole, and fixed point is installed in stepped hole
Frame bearing（36）, pinpoint frame bearing（36）Fixed point strut is inside installed（37）, pinpoint strut（37）The other end be cut into flat；It is fixed
Penalty kick（7）Cut with fixed point ball groove（8）, pinpoint ball groove（8）With fixed point strut（37）Flat contact surface be clearance fit, fixed point branch
Bar（37）Flat and fixed point ball（7）It is drilled with through-hole, fixed point axis is installed in through-hole（51）, pinpoint axis（51）Fixed point strut
（37）With fixed point ball（7）It connects, pinpoints ball（7）It can be around fixed point strut（37）Rotation.Pinpoint ball（7）It is straight to be fixedly connected with space
Line（6）One end, space line（6）The other end is fixedly connected with dynamic penalty kick（3）, move penalty kick（3）Equipped with dynamic ball groove（2）, move point
Ball groove（2）Interior includes guide rod（44）, guide rod（44）It is cylindrical tube；Dynamic penalty kick（3）And guide rod（44）By pin（55）Connection, guide rod
（44）Equipped with stem guiding trough（45）, pin（55）It can be in stem guiding trough（45）It inside slides back and forth, makes penalty kick（3）Along guide rod（44）It is front and back
It is mobile；Guide rod（44）The cylindrical tube of rear end is shut by thin-walled, and linear type hole is cut at thin-walled, and dynamic point is connected to linear type hole
Front projection, guide rod（44）Always perpendicular to perspective plane.
Projection join line mechanism includes pan carriage, change gear（42）, change gear axis（5）, pulley（26）, pulley spindle（24）, flexible strand
（35）, rope support（20）.There are two pan carriages, is upper pan carriage respectively（34）With left frame（31）.Pan carriage is c-type bar shaped knot
Structure, pan carriage both ends are hooked on projection plate（23）On.Pan carriage is equipped with bar shaped locating slot（50）, locating slot（50）On be provided with cunning
Slot（32）, sliding slot（32）Compare locating slot（50）It is narrow.Upper pan carriage（34）Right half section and left frame（31）Lower semisection is equipped with scale
（60）, scale（60）Label is zero-based incremental sequential digit values, if upper pan carriage（34）With left frame（31）In
Between scale value be zero.Left frame（31）Upper end is equipped with change gear axis（5）, change gear axis（5）On be cased with change gear（42）, change gear（42）
Ride over projection plate（23）Upper end.In projection plate（23）Behind, upper pan carriage（34）With left frame（31）Both ends are respectively equipped with
Pulley spindle（24）, pulley spindle（24）On be cased with pulley（26）, pulley（26）If there are two slideway, each slideway is respectively wound with one
Flexible strand（35）, flexible strand（35）Four are shared, each pulley（26）On be wound with two flexible strands（35）, every flexible strand
（35）Both ends be separately fixed at projection plate（23）The rope support of two sides（20）On.Rope support（20）Eight are shared, rope support（20）By
Screw is symmetrically fixed on projection plate（23）On the angle of four sides.Every flexible strand（35）Around pulley（26）Rear steering is to same
Another pulley of a pan carriage（26）, turn again to and rope support（20）Connection, at Z or anti-Z shapes；Corresponding thereto another
Flexible strand（35）Fixation and trend with previous flexible strand（35）Symmetrically, two flexible strand（35）With the same pulley（26）Twine
It is opposite around direction；To ensure that pan carriage can be in projection plate（23）Upper translational motion.
Mechanism of linear projection includes fixed point, dynamic point, linear projection and dynamic spot projection line（10）, fixed point includes fixed point front
Projection, point level projection and fixed point side projection, each projection is by fixed point bearing（30）, shaft（48）, fixed point wind spring（47）
It is formed with linear projection, pinpoints slot（16）Fixed point bearing is inside installed（30）, pinpoint bearing（30）Inner ring is installed with shaft
（48）, shaft（48）It is equipped with fixed point wind spring（47）, pinpoint wind spring（47）Inner end and shaft（48）Connection pinpoints wind spring（47）
Outer end connect with linear projection, linear projection is flexible thin strip, is divided into straight line front projection（38）, straight horizontal projection
（28）With straight line side projection（15）, linear projection's one ends wound is in fixed point wind spring（47）On, the other end reaches projection plate
（23）On, it is connected with dynamic point；Linear projection is in fixed point wind spring（47）Pulling under it is always exceptionally straight in projection plate（23）On, and length
It is variable.It projects and is pinpointed at side projection in point level, pinpoint bearing（30）It is cased with point level projection hat on the outside of inner ring
（27）With fixed point side projection cap（14）, point level projection hat（27）With fixed point side projection cap（14）It is open equipped with fixed point
（59）, linear projection is by pinpointing opening（59）Reach projection plate（23）On, it is connect with dynamic spot projection.
Dynamic point includes dynamic point front projection, dynamic point floor projection and dynamic point side projection, and each projection is by sliding block（52）, it is dynamic
Spot projection fixture block, pin（53）, a dynamic point shell, dynamic spot projection line（10）It is formed with dynamic cap, it further includes moving to move point floor projection
Point wind spring（46）.Sliding block（52）It is the assembly of cuboid and cylinder with cylindrical hole, sets that there are two dynamic in cylindrical hole
Spot projection fixture block, it is half ladder circle cylindricality to move spot projection fixture block, and two dynamic spot projection fixture blocks are by pin（53）Connect into ladder circle
Column, moving spot projection fixture block can be in sliding block（52）Through-hole in rotation；Dynamic spot projection fixture block transfer point front projection fixture block（54）, it is dynamic
Point floor projection fixture block（57）With dynamic side projection fixture block, point floor projection fixture block is moved（57）With dynamic side projection fixture block shape
Shape is identical, moves point front projection fixture block（54）Than another two projection fixture block T-shape block more than the front end, T-shape block is inserted into
Guide rod（44）"-" type hole in and guide rod（44）It is connected.Sliding block（52）Rectangular body side surface and pan carriage locating slot（50）Side
Face coordinates, sliding block（52）Cylindrical surface and pan carriage sliding slot（32）Two sides coordinate, sliding block（52）It can be in locating slot（50）And cunning
Slot（32）Interior sliding.Linear projection, linear projection's pin are clamped in contact surface between two dynamic spot projection fixture blocks（53）Gu
Surely it is connected on dynamic spot projection fixture block.Dynamic wind spring of dynamic point floor projection（46）Inner end is fixedly connected on sliding block（52）Cylinder
On, move point wind spring（46）Outer end and dynamic spot projection line（10）Connection.The outside of three projections of dynamic point is cased with dynamic spot projection shell,
Dynamic spot projection shell transfer point front projection shell（39）, a dynamic point floor projection shell（41）Shell is projected with dynamic point survey face, moves spot projection shell
It is cylindrical tube, cuts with rectangular channel thereon and coordinate with pan carriage.Dynamic spot projection line（10）It is a flexible flexible strand
（35）, move spot projection line（10）Driven floor projection shell（41）After the circular hole of upper end is drawn, it is fixedly connected on dynamic point front
Project shell（39）Lower end.In dynamic point wind spring（46）With dynamic spot projection line（10）Under elastic reaction, always give dynamic point is horizontal to throw
Shadow shell（41）To dynamic one, front projection direction pulling force.Dynamic point cap is divided into dynamic point front projection cap（40）, a dynamic point floor projection
Cap（29）With dynamic side projection cap（17）, move point front projection cap（40）It is equipped with cylindrical hole, so as to guide rod（44）Pass through.
Dynamic point cap is by tight fit connection on the external cylindrical surface of dynamic point shell.
Linkage mechanism includes pin（55）, guide rod（44）, pipe cut（56）, flexible pipe（1）, pipe ring frame（49）, flexible pipe support
（12）, steel wire rope（18）, wire rope pulley（43）, steel wire rope support（19）, wire rope pulley axis（58）.Guide rod（44）Pipe in
It is cut equipped with pipe（56）, pipe section（56）It is sheet, with guide rod（44）It is one；Flexible pipe（1）One end be fixed on pipe cut（56）On,
Pipe ring frame（49）It is fixed on dynamic point front projection shell（39）On, flexible pipe support（12）It is fixed on left frame（31）Middle part, it is flexible
Pipe（1）Across stem guiding trough（45）Guide to guide rod（44）Outside, be fixed on left frame（31）Flexible pipe support（12）Top, it is flexible
Pipe（1）Length depend on space line（6）Required length when being plumb line.Steel wire rope support（19）A left side is fixed on by screw
Pan carriage（31）Lower end, steel wire rope support（19）Wire rope pulley axis is installed（58）, wire rope pulley axis（58）On be cased with steel wire
Rope pulley（43）；Flexible pipe（1）In be equipped with steel wire rope（18）, steel wire rope（18）It can be in flexible pipe（1）Middle movement.Steel wire rope
（18）One end is fixed on dynamic penalty kick（3）Pin（55）On, pass through flexible pipe（1）With dynamic floor projection shell（41）, further around mistake
Wire rope pulley（43）, u-turn, which is fixed on, moves point floor projection shell（41）Below.With moving dynamic penalty kick down on hand（3）When, steel wire
Rope（18）In flexible pipe（1）It does not relatively move, drives left frame（31）It moves left and right and upper pan carriage（34）It moves up and down,
The front projection of dynamic point is driven to move up and down simultaneously, and the floor projection of dynamic point is only moved left and right with pan carriage, Bu Nengshang
Lower movement；With moving dynamic penalty kick before and after hand（3）When, while the floor projection of dynamic point is moved left and right with pan carriage, moreover it is possible to up and down
It is mobile；This is because moving dynamic penalty kick forward（3）, move penalty kick（3）Pin（55）Pull steel wire rope（18）Forward, by steel wire
Rope（18）Dynamic point floor projection is driven to move down；Dynamic penalty kick is moved backward（3）When, pipe is cut（56）The steel wire rope at place（18）After move, move
Point wind spring（46）Haul dynamic point floor projection shell（41）Upwards.The dynamic point floor projection amount of moving up and down is exactly equal to dynamic penalty kick（3）
Rear preceding amount of movement；Meet projection law.Penalty kick is moved to realize（3）Position and the position of dynamic point floor projection link, move
The upper and lower position of point side projection is by upper pan carriage（34）It automatically determines, moves point side projection left and right position and thrown according to dynamic point is horizontal
The scale value of shadow is manually adjusted to corresponding position again.Steel wire rope（18）Length depend on space line（6）Institute when being vertical profile line
The length needed.
In use, moving dynamic penalty kick with hand（3）, control the front projection different location of braking point, move point floor projection with
It moves in place, a dynamic point side projection left and right position is manually adjusted again further according to the scale value of dynamic floor projection.To be not difficult to be put into
7 kinds of positions of space line.
Perspective plane, guide rod（44）, guide rod cap（4）, flexible pipe（1）, steel wire rope（18）, steel wire rope support（19）With fixed point frame
（9）Using white, space line（6）With linear projection using blue, ball is pinpointed（7）, dynamic penalty kick（3）, dynamic spot projection and fixed point
Projection is using red, projection join line, font and scale（60）Using black, pan carriage uses transparent material.
Figure 15 is the embodiment of frontal line projection.
Figure 16 is the embodiment of horizontal line projection.Before being put into horizontal line, fixed point side projection cap is first extracted（14）.
Figure 17 is the embodiment of profile line projection.Before being put into profile line, point level projection hat is first extracted（27）.
Figure 18 is the embodiment of vertical frontal line projection.Before being put into vertical frontal line, dynamic penalty kick is first moved（3）To the position of approach vertical frontal line
It sets, extracts guide rod cap（4）, stem guiding trough（45）Front end is opening, then from stem guiding trough（45）Opening, which pulls out, moves penalty kick（3）, make
Dynamic penalty kick（3）It is detached from guide rod（44）, then move dynamic penalty kick（3）To space line（6）Perpendicular to projection plate（23）, then dynamic point
Front projection, floor projection and front projection swing to correct position.Also removable to lay down guide rod（44）：Rotating guide（44）Make
Dynamic point front projection fixture block（54）T-shape block alignment guide rod（44）"-" type hole, guide rod can be extracted（44）.
Figure 19 is the embodiment of vertical line projection.Before being put into plumb line, point level projection hat is first extracted（27）.
Figure 20 is the embodiment of vertical profile line projection.Before being put into vertical profile line, fixed point side projection cap is first extracted（14）.
Claims (1)
1. a kind of straight line three-plane projection demonstration board of carrying space model scale positioning, including projection plate, space line model mechanism,
Projection join line mechanism, mechanism of linear projection and linkage mechanism；It is characterized in that：Projection plate is equipped with X-axis, YH axis, Yw axis and Z axis, X
Projection plate is divided into frontal plane of projection, horizontal plane, lateral projection face and the faces YH Yw by axis, YH axis, Yw axis and Z axis;On the faces YH Yw
Equipped with angle separated time;If the endpoint of straightway is fixed point and dynamic point;Fixed point is motionless point, the front projection of fixed point, floor projection
It is respectively equipped with fixed point slot with side projection, fixed point slot is ladder circular hole;The front projection of fixed point and the vertical X of the line of floor projection
The floor projection of axis, the front projection of fixed point and the line vertical Z axis of side projection, above-mentioned two lines and fixed point is to angle separated time
Horizontal line, fixed point side projection to angle separated time vertical line form a rectangle, be set as fixed point projection join line;X-axis, YH axis,
Yw axis, Z axis, fixed point projection join line and the truncation surface of angle separated time are rectangular channels;Space line model mechanism includes fixed point frame, fixed point
Frame bearing, fixed point strut, fixed point ball, fixed point axis, space line, dynamic penalty kick, guide rod, pin, guide rod cap;Fixed point frame is consolidated by screw
It is scheduled on projection plate, fixed point frame is made of Z-shaped plate and cylinder, and cylinder is equipped with stepped hole, and fixed point frame bearing is installed in stepped hole, fixed
Fixed point strut is installed in point frame bearing, the other end for pinpointing strut is cut into flat；Fixed point ball cuts with fixed point ball groove, pinpoints ball groove
Flat contact surface with fixed point strut is clearance fit, and the flat and fixed point round bur for pinpointing strut have through-hole, are equipped in through-hole
Axis is pinpointed, fixed point axis connects fixed point strut and fixed point ball, and fixed point ball can be around fixed point strut rotation;Fixed point ball is fixedly connected
One end of space line, the space line other end are fixedly connected with dynamic penalty kick, move penalty kick and are equipped with dynamic point ball groove, include in dynamic point ball groove
Guide rod, guide rod are cylindrical tubes；Dynamic penalty kick is connected with guide rod by pin, and guide rod is equipped with stem guiding trough, and pin can be front and back in stem guiding trough
Sliding makes penalty kick be moved forward and backward along guide rod；The cylindrical tube of guide rod rear end is shut by thin-walled, and linear type hole is cut at thin-walled,
The front projection of dynamic point is connected to linear type hole, guide rod is always perpendicular to perspective plane;Projection join line mechanism includes pan carriage, hangs
Wheel, change gear axis, pulley, pulley spindle, flexible strand, rope support;There are two pan carriages, is upper pan carriage and left frame respectively;Translation
Frame is c-type strip structure, and pan carriage both ends are hooked on projection plate;Pan carriage is equipped with bar shaped locating slot, is provided on locating slot
Sliding slot, sliding slot are narrower than locating slot;Right half section of upper pan carriage is equipped with scale with left frame lower semisection, and scale mark is to start from scratch
Incremental sequential digit values, if the scale value of the centre of upper pan carriage and left frame is zero;Left frame upper end is equipped with change gear
Axis is cased with change gear on change gear axis, and change gear rides over projection plate upper end;Behind projection plate, upper pan carriage and left frame both ends
It is respectively equipped with pulley spindle, pulley is cased on pulley spindle, pulley is set there are two slideway, and each slideway is respectively wound with a flexible strand,
Flexible strand shares four, and two flexible strands are wound on each pulley, and the both ends of every flexible strand are separately fixed at projection plate two
On the rope support of side;Rope support shares eight, and rope support is symmetrically fixed on by screw on the angle of four sides of projection plate;Every flexible strand
It around another pulley of pulley rear steering to the same pan carriage, turns again to connect with rope support, at Z or anti-Z shapes；With it
The fixation of another opposite flexible strand and trend, the winding side of two flexible strands and same pulley symmetrical with previous flexible strand
To opposite；To ensure that pan carriage can the translational motion on projection plate;Mechanism of linear projection include fixed point, dynamic point, linear projection and
Dynamic spot projection line, fixed point include fixed point front projection, point level projection and fixed point side projection, and each fixed point projection is by fixed
Point bearing, shaft, fixed point wind spring and linear projection's composition, pinpoint and are equipped with fixed point bearing in slot, and fixed point bearing inner race fixes peace
Equipped with shaft, shaft is equipped with fixed point wind spring, and the inner end for pinpointing wind spring is connect with shaft, pinpoints outer end and the linear projection of wind spring
Connection, linear projection is flexible thin strip, is divided into straight line front projection, straight horizontal projection and straight line side projection, straight line and throws
On fixed point wind spring, the other end reaches on projection plate shadow one ends wound, is connected with dynamic point；Drawing of the linear projection in fixed point wind spring
It is always exceptionally straight on projection plate under dynamic, and length is variable;It projects and is pinpointed at side projection in point level, pinpoint bearing inner race
Outside is cased with point level projection hat and fixed point side projection cap, and point level projection hat and fixed point side projection cap are equipped with fixed point
Opening, linear projection are reached on projection plate by pinpointing opening, are connect with dynamic spot projection;Dynamic point include a dynamic point front projection,
Dynamic floor projection and a dynamic point side projection are each moved spot projection and are thrown by sliding block, dynamic spot projection fixture block, pin, a dynamic point shell, dynamic
Shadow line and dynamic point cap composition, dynamic point floor projection further include dynamic point wind spring;Sliding block is cuboid and circle with cylindrical hole
The assembly of column is set in cylindrical hole there are two dynamic spot projection fixture block, and it is half ladder circle cylindricality, two dynamic points to move spot projection fixture block
Projection fixture block connects into stepped cylindrical by pin, and dynamic spot projection fixture block can rotate in the through-hole of sliding block；Dynamic spot projection fixture block point
Dynamic point front projection fixture block, dynamic point floor projection fixture block and dynamic point side projection fixture block, move point floor projection fixture block and dynamic point side
It is identical that face projects fixture block shape, moves point front projection fixture block than another two projection fixture block T-shape block more than the front end, T-shape
Block is inserted into the "-" type hole of guide rod to be connected with guide rod;The rectangular body side surface of sliding block and the locating slot side of pan carriage coordinate,
The cylindrical surface of sliding block coordinates with pan carriage sliding slot two sides, and sliding block can slide in locating slot and sliding slot;Two dynamic spot projection folders
Linear projection is clamped in contact surface between block, linear projection is fixedly connected on pin on dynamic spot projection fixture block;Dynamic point is horizontal
Dynamic wind spring inner end of projection is fixedly connected on the cylinder of sliding block, and the outer end of dynamic point wind spring is connect with dynamic spot projection line;It is dynamic
The outsides of three projections of point are cased with dynamic spot projection shell, move spot projection shell transfer point front projection shell, dynamic point floor projection shell and dynamic
Point survey face projects shell, and it is cylindrical tube to move spot projection shell, cuts with rectangular channel thereon and coordinates with pan carriage;Dynamic spot projection line is one
The flexible flexible strand of item is fixedly connected on dynamic after the circular hole extraction for moving driven floor projection shell upper end of spot projection line
The lower end of point front projection shell;Under dynamic point wind spring and dynamic spot projection line elastic reaction, always give dynamic point floor projection shell to
Dynamic point one, direction of front projection pulling force;Dynamic point cap is divided into dynamic point front projection cap, dynamic point floor projection cap and dynamic point side and throws
Shadow cap moves point front projection cap and is equipped with cylindrical hole, so that guide rod passes through;Dynamic point cap is by tight fit connection in dynamic point shell
On external cylindrical surface;Linkage mechanism includes pin, guide rod, pipe section, flexible pipe, pipe ring frame, flexible pipe support, steel wire rope, steel wire rope cunning
Wheel, steel wire rope support, wire rope pulley axis;It is equipped with pipe in the pipe of guide rod to cut, it is sheet that pipe, which is cut, is one with guide rod；Flexible pipe
One end is fixed on pipe and cuts, and pipe ring frame is fixed on dynamic point front projection shell, and flexible pipe support is fixed in the middle part of left frame, flexible
Pipe guides to the outside of guide rod across stem guiding trough, is fixed on left frame flexibility pipe support top, and the length of flexible pipe depends on space
Required length when straight line is plumb line;Steel wire rope support is fixed on left frame lower end by screw, and steel wire rope support is equipped with steel
Cord pulley spindle is cased with wire rope pulley on wire rope pulley axis；Steel wire rope is equipped in flexible pipe, steel wire rope can be in flexible pipe
It is mobile;Steel wire rope one end is fixed on the pin of dynamic penalty kick, is passed through flexible pipe and dynamic point floor projection shell, is slided further around steel wire rope is crossed
Wheel, it is following that u-turn is fixed on dynamic point floor projection shell;The length of steel wire rope depends on required when space line is vertical profile line
Length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611134921.2A CN106781968B (en) | 2016-12-11 | 2016-12-11 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611134921.2A CN106781968B (en) | 2016-12-11 | 2016-12-11 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106781968A CN106781968A (en) | 2017-05-31 |
| CN106781968B true CN106781968B (en) | 2018-11-06 |
Family
ID=58879797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611134921.2A Active CN106781968B (en) | 2016-12-11 | 2016-12-11 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106781968B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979253B (en) * | 2019-03-22 | 2024-07-05 | 湖州师范学院 | Linear projection demonstration instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1580425A1 (en) * | 1988-06-24 | 1990-07-23 | Таганрогский радиотехнический институт им.В.Д.Калмыкова | Instrument for determining natural dimension of plane figure on monge diagram |
| CN202748987U (en) * | 2012-09-24 | 2013-02-20 | 黑龙江中医药大学 | Spatial geometry demonstration device with projection function |
| CN203706508U (en) * | 2014-02-10 | 2014-07-09 | 司兴雷 | Projection relation demonstration device for senior high school mathematics |
| CN204029213U (en) * | 2014-06-16 | 2014-12-17 | 许磊 | A kind of descriptive geometry teaching apparatus |
| CN204423745U (en) * | 2015-02-10 | 2015-06-24 | 西安科技大学 | A kind of three projecting plane system diverse location straight line and orthogonal projection demonstration teaching aids thereof |
| CN206388431U (en) * | 2016-12-11 | 2017-08-08 | 沈阳工业大学 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
-
2016
- 2016-12-11 CN CN201611134921.2A patent/CN106781968B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1580425A1 (en) * | 1988-06-24 | 1990-07-23 | Таганрогский радиотехнический институт им.В.Д.Калмыкова | Instrument for determining natural dimension of plane figure on monge diagram |
| CN202748987U (en) * | 2012-09-24 | 2013-02-20 | 黑龙江中医药大学 | Spatial geometry demonstration device with projection function |
| CN203706508U (en) * | 2014-02-10 | 2014-07-09 | 司兴雷 | Projection relation demonstration device for senior high school mathematics |
| CN204029213U (en) * | 2014-06-16 | 2014-12-17 | 许磊 | A kind of descriptive geometry teaching apparatus |
| CN204423745U (en) * | 2015-02-10 | 2015-06-24 | 西安科技大学 | A kind of three projecting plane system diverse location straight line and orthogonal projection demonstration teaching aids thereof |
| CN206388431U (en) * | 2016-12-11 | 2017-08-08 | 沈阳工业大学 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106781968A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2865471C (en) | Air deflector driving device and indoor air-conditioning unit using driving device | |
| CN106781968B (en) | The straight line three-plane projection demonstration board of carrying space model scale positioning | |
| CN205374877U (en) | Pupil focal length setting structure and virtual glasses | |
| CN206388396U (en) | The straight line three-plane projection demonstration board of the drawing linkage of carrying space model spool | |
| CN205663756U (en) | Straight line intersecting roller guide is vice | |
| CN206388434U (en) | The straight line three-plane projection demonstration board of the projection linkage of carrying space model three | |
| CN206388431U (en) | The straight line three-plane projection demonstration board of carrying space model scale positioning | |
| CN206388430U (en) | The straight line three-plane projection demonstration board of carrying space model angle line-disparting type linkage | |
| CN106485988B (en) | The straight line three-plane projection demonstration board of the drawing linkage of carrying space model spool | |
| CN106448427B (en) | The straight line three-plane projection demonstration board of the projection linkage of carrying space model three | |
| CN106485997B (en) | The straight line three-plane projection demonstration board of carrying space model angle separated time slide block type linkage | |
| CN206388429U (en) | The straight line three-plane projection demonstration board of carrying space model angle separated time slide block type linkage | |
| CN106448418B (en) | The straight line three-plane projection demonstration board of carrying space model angle line-disparting type linkage | |
| CN106530932B (en) | The flexible drawing straight line two*.plane projection demonstration board of carrying space model | |
| CN206379101U (en) | The flexible drawing straight line two*.plane projection demonstration board of carrying space model | |
| CN206133119U (en) | VR glasses object distance adjustment mechanism | |
| CN205920680U (en) | Sharp three -plane projection demonstration board of flexible traction minute line formula linkage | |
| CN105931534B (en) | The straight line three-plane projection demonstration board of the drawing linkage of flexible drawing spool | |
| CN203303641U (en) | Toy car with gravity center adjusting function | |
| CN208358060U (en) | A kind of laser cutting machine for incising pipes | |
| CN205920681U (en) | Dual projection demonstration board of flexible traction straight line | |
| CN105894937B (en) | Flexible drawing straight line two*.plane projection demonstration board | |
| CN105869498B (en) | The straight line three-plane projection demonstration board of flexible drawing angle line-disparting type linkage | |
| CN105825765B (en) | The straight line three-plane projection demonstration board of flexible drawing | |
| CN107803992A (en) | Linkage and 3D printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190326 Address after: 510000 Hualiyuan Huali Road, Guangshan Highway, Zengcheng, Guangzhou, Guangdong Province Patentee after: Guangzhou Huali College of Science and Technology Address before: 110870 No. 111 Shenyang West Road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning Patentee before: Shenyang University of Technology |