CN205920690U - Flexible traction's sharp three -plane projection demonstration board - Google Patents
Flexible traction's sharp three -plane projection demonstration board Download PDFInfo
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- CN205920690U CN205920690U CN201620548078.1U CN201620548078U CN205920690U CN 205920690 U CN205920690 U CN 205920690U CN 201620548078 U CN201620548078 U CN 201620548078U CN 205920690 U CN205920690 U CN 205920690U
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Abstract
The utility model provides a flexible traction's sharp three -plane projection demonstration board is become by projection board, projection line mechanism, linear projection mechanism group, adopting soft style rope driven projection line mechanism, making sharp moving point's front projection and horizontal projection line guarantee perpendicular X axle, perpendicular Z axle is guaranteed to sharp moving point's front projection and side projection, adopt telescopic linear projection mechanism, make the projection length of straight line change, satisfy the situation of spatial linear's various positions, it is equipped with scale and numerical value to utilize the translation to put up to this equals the distance that the side projection arrived the Z axle according to moving point's horizontal projection to the distance of X axle. During the use, with the three projection cap of hand -screw pine moving point, remove the three projection of the moving point projection cap of screwing to the assigned position after in proper order. The utility model discloses the teaching aid in kind that can change with developments has replaced 7 unchangeable teaching aids, and dynamic demonstration effect is showing and promotes in addition.
Description
Technical field
This utility model is related to a kind of demonstration teaching aid, the especially straight line of the flexible drawing used by Engineering Drawing Course
Three-plane projection's demonstration board.
Background technology
In Engineering Drawing Course, represent that the locus of straight line to be determined by the projection on three perspective planes, i.e. straight line
Front projection, floor projection and side projection, straight line represents by the straightway comprising two end points it is desirable to must assure that same
The front projection of individual end points x-axis vertical with the line of floor projection, front projection z-axis vertical with the line of side projection, level
The distance projecting to x-axis is equal to side projection to the distance of z-axis.Space line has seven kinds of situations relative 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, in Engineering Drawing Course teaching, need
Demonstrate this seven kinds of straight lines with front projection, floor projection and side projection respectively.At present, demonstrating this seven kinds of straight lines is to adopt seven
Individual mock-up teaching aid or its three-plane projection drawing is drawn on blackboard.If adopting mock-up teaching aid, each teaching aid
It is all changeless, its shortcoming is bulky, carrying, carry, move and hang inconvenient, if drawn using on blackboard
Go out its three-plane projection drawing, need the more time, take larger blackboard space, and dynamic demonstration effect is bad.Impact teaching
Quality.
Content of the invention
In order to solve the above problems, this utility model provides a kind of straight line three-plane projection demonstration board of flexible drawing, and this is soft
Property traction straight line three-plane projection demonstration board fixed using an end points of straight line, the form of another end points activity, using soft
Property traction-driven projection join line mechanism and mechanism of linear projection can not only the convenient, flexible position quickly showing 7 kinds of straight lines, and
And also ensure that front projection x-axis vertical with the line of floor projection, the front projection of straight line end points and the side of straight line end points
The vertical z-axis of line of projection.To solve above-mentioned problem of the prior art.
This utility model solves the straight line three-plane projection demonstration of the technical scheme is that flexible drawing of its technical problem
Plate includes projection plate, projection join line mechanism, mechanism of linear projection.
Projection plate is provided with x-axis, yh axle, yw axle and z-axis, and x-axis, yh axle, yw axle and z-axis are divided into orthographic projection projection plate
Face, horizontal plane, lateral projection face and yh yw face.Yh yw face is provided with angle separated time.If the end points of straightway is fixed point and moves
Point.Fixed point is motionless point, and the frontal plane of projection of fixed point, floor projection and side projection are located at the centre on respective perspective plane, fixed point
Frontal plane of projection, floor projection and side projection be respectively equipped with fixed point groove, fixed point groove is ladder circular hole.Fixed point frontal plane of projection and
The vertical x-axis of line of floor projection, is set to left fixed point projection join line；The frontal plane of projection z vertical with the line of side projection of fixed point
Axle, is set to fixed point projection join line；The distance of the floor projection of fixed point to x-axis is equal to the side projection pinpointing to the distance of z-axis,
The line of floor projection to the angle separated time of fixed point is set to lower fixed point projection join line, and the line of side projection to the angle separated time slideway of fixed point sets
For right fixed point projection join line.X-axis, yh axle, yw axle, z-axis, left fixed point projection join line, right fixed point projection join line, the projection of upper fixed point are even
The truncation surface of line, lower fixed point projection join line and angle separated time is rectangular channel.
Projection join line mechanism includes pan carriage, change gear, change gear axle, pulley, pulley spindle, flexible strand, rope support and rope support screw.
Pan carriage has two, is upper pan carriage and left frame respectively.Set on the lower semisection of half section of the right side of upper pan carriage and left frame
There are scale and numerical value, with the position of this reference side projection and side projection.Pan carriage is c type strip structure, pan carriage two ends
It is hooked on projection plate.Pan carriage is provided with bar shaped locating slot, and locating slot has chute, and chute is narrower than locating slot.Left
Frame upper end is provided with change gear axle, and change gear axle is cased with change gear, and change gear rides over projection plate upper end.After projection plate, all translations
Frame is respectively arranged at two ends with pulley spindle, and pulley spindle is cased with pulley, and pulley is provided with two slideways, each slideway be respectively wound with one soft
Property rope, flexible strand has four, each pulley is wound with two flexible strand, and the two ends of every flexible strand are separately fixed at projection
On the rope support of plate two sides.Rope support has eight, and rope support is symmetrically fixed on the angle of four sides of projection plate by rope support screw.Often
Bar flexible strand bypasses pulley rear steering to another pulley of same pan carriage, turns again to be connected with rope support, becomes z or anti-z shape
Shape；The fixation of another flexible strand corresponding thereto and trend are symmetrical with previous bar flexible strand, two flexible strand and same pulley
Winding direction contrary；To guarantee that pan carriage can translational motion on projection plate.
Mechanism of linear projection includes fixed point, dynamic point and projection join line, and fixed point includes pinpointing front projection, point level projection
With fixed point side projection, each projects and is made up of fixed point bearing, fixed point cap, fixed point axle, fixed point wind spring and linear projection, perspective plane
On fixed point groove in fixed point bearing is installed, be cased with pinpointing cap outside the inner ring of fixed point bearing, fixed point cap is provided with fixed point opening, fixed
Point cap minute fixed point front projection cap, point level projection hat and fixed point side projection cap, it is fixed that fixed point bearing inner race is installed with
Point axle, fixed point axle is provided with fixed point wind spring, and the inner of fixed point wind spring is connected with fixed point axle, and the outer end of fixed point wind spring and straight line are thrown
Shadow connects, and linear projection is flexible thin strip, is divided into straight line front projection, straight horizontal projection and straight line side projection, straight line
Projection is wrapped on fixed point wind spring, and linear projection is reached on projection plate by pinpointing opening, is connected with dynamic point.Linear projection exists
Under the pulling of fixed point wind spring always exceptionally straight on projection plate, and length is variable.Dynamic point includes dynamic point front projection, dynamic point level is thrown
Shadow and dynamic point side projection, each projection by slide block, projection fixture block, pin, dynamic point shell, dynamic point wind spring, dynamic point projection join line and is moved
Point cap composition.Slide block is the assembly of cuboid and cylinder, has cylindrical hole in the cylinder of slide block, is provided with two projections in through hole
Fixture block, projection fixture block is half ladder circle cylindricality, clamps linear projection in the contact surface between two projection fixture blocks, two projection folders
Block becomes stepped cylindrical by pin connection, and projection fixture block can rotate in the cylindrical hole of slide block；The cuboid of slide block puts into pan carriage
In locating slot, slide block can slide in locating slot；Cylinder on slide block is put in the chute of pan carriage.The slide block of front projection
Cylindrical outer side is connected with the inner of two dynamic point wind springs arranged side by side, and two dynamic point wind spring outer ends of dynamic point front projection connect respectively
Left dynamic point projection join line and upper dynamic point projection join line, the cylindrical outer side of the slide block of dynamic point floor projection and side projection is connected with one
The inner of individual dynamic point wind spring, connects left dynamic point projection join line outside the dynamic point wind spring of floor projection, outside the wind spring of side projection
Dynamic point projection join line in connection.The truncation surface of dynamic point wind spring is circular.The outside of three projections of dynamic point is cased with dynamic point shell, dynamic point shell
It is provided with circular hole, dynamic point projection join line is passed through circular hole and projected to another dynamic point, and dynamic point projection join line is in the pulling of dynamic point wind spring
Under, always exceptionally straight on projection plate, and length is variable.Dynamic point cap is divided into dynamic point front projection cap, dynamic point floor projection cap and moves
Point side projection cap, dynamic point cap is tightened on the screw of slide block cylinder by screw thread, by locked for dynamic point projection fixation in movable stand
On.
Using white, projection join line and font adopt black, and pan carriage adopts transparent material, dynamic point and fixed point to adopt on perspective plane
With redness, linear projection is using eye-catching color.
The beneficial effects of the utility model are: the projection join line mechanism being driven using soft type rope, make the front of straight line dynamic point
Projection and floor projection line ensure that vertical x-axis, the front projection of straight line dynamic point and side projection ensure vertical z-axis；Using can
Flexible mechanism of linear projection, makes the projected length alterable of straight line, meets the situation of the various positions of space line.This practicality
The new object visual using a dynamically changeable instead of 7 constant teaching aids, and the lifting of dynamic demonstration effect is significant.
Brief description
With reference to the accompanying drawings and examples this utility model is further illustrated.
Fig. 1 is the integrally-built above axonometric chart of expression.
Fig. 2 is to express integrally-built rear isometric view.
Fig. 3 is front view.
Fig. 4 is the left view on Fig. 3 along aa cutting.
Fig. 5 is the rearview on Fig. 4 along bb cutting.
Fig. 6 is the partial enlarged drawing of Fig. 5 dynamic point.
Fig. 7 is the rearview on Fig. 4 along cc cutting.
Fig. 8 is the oblique sectional view on Fig. 3 along dd cutting.
Fig. 9 is the partial sectional view on Fig. 8 along ee cutting.
Figure 10 is the embodiment of horizontal line projection.
Figure 11 is the embodiment of frontal line projection.
Figure 12 is the embodiment of profile line projection.
Figure 13 is the embodiment of vertical line projection.
Figure 14 is the embodiment of vertical frontal line projection.
Figure 15 is the embodiment of vertical profile line projection.
In figure 1. projection plate, 2. goes up pan carriage, 3. left dynamic point projection join line, 4. change gear axle, 5. left frame, and 6. dynamic point is being just
Face projection hat, 7. straight line front projection, 8. pinpoint front projection cap, 9. on pinpoint projection join line, 10.z axle, on 11. dynamic point throw
Shadow line, 12. chutes, 13. right fixed point projection join line, 14. fixed point side projection caps, 15. straight line side projections, 16. scales,
17. dynamic point side projection caps, 18. yw axles, 19. rope supports, 20. rope support screws, 21. jiaos of separated times, 22.yh axle, 23. times fixed points
Projection join line, 24. x-axis, 25. left fixed point projection join line, 26. point level projection hats, 27. straight horizontal projections, 28. move
Point floor projection cap, 29. pulley spindles, 30. pulleys, 31. dynamic point wind springs, 32. projection fixture blocks, 33. flexible strand, 34. change gears, 35.
Dynamic point shell, 36. slide blocks, 37. locating slots, 38. pins, 39. fixed point grooves, 40. fixed point axles, 41. fixed point wind springs, 42. fixed point bearings,
43. fixed point openings.
Specific embodiment
Fig. 1 to Fig. 5 and Fig. 7, represents that unitary construction of the present utility model forms connection and the position relationship with parts,
It is the embodiment of parallax.
Fig. 6 represents connection and the position relationship of dynamic point contexture and parts.
Fig. 8 represents connection and the position relationship of mechanism of linear projection contexture and parts.
Fig. 9 represents that place construction forms connection and position relationship with parts.
In Fig. 1 to Fig. 9, the straight line three-plane projection demonstration board of flexible drawing includes projection plate 1, projection join line mechanism, straight
Mechanism of line projection.
The straight line three-plane projection demonstration board of flexible drawing includes projection plate 1, projection join line mechanism, mechanism of linear projection.
Projection plate 1 is provided with x-axis 24, yh axle 22, yw axle 18 and z-axis 10, x-axis 24, yh axle 22, yw axle 18 and z-axis 10
Projection plate 1 is divided into frontal plane of projection, horizontal plane, lateral projection face and yh yw face.Yh yw face is provided with angle separated time 21.If straight line
The end points of section is fixed point and dynamic point.Fixed point is motionless point, and the frontal plane of projection of fixed point, floor projection and side projection are located at each
The centre on perspective plane, the frontal plane of projection of fixed point, floor projection and side projection are respectively equipped with fixed point groove 39, and fixed point groove 39 is ladder
Circular hole.The frontal plane of projection x-axis 24 vertical with the line of floor projection of fixed point, is set to left fixed point projection join line 25；The just throwing of fixed point
Shadow face z-axis 10 vertical with the line of side projection, is set to pinpoint projection join line 9；The floor projection of fixed point is to the distance of x-axis 24
It is equal to the distance of the side projection of fixed point to z-axis 10, the line of floor projection to the angle separated time 21 of fixed point is set to lower fixed point projection even
Line 23, the line of side projection to the angle separated time 21 of fixed point is set to right fixed point projection join line 13.X-axis 24, yh axle 22, yw axle 18, z-axis
10th, left fixed point projection join line 25, right fixed point projection join line 13, upper fixed point projection join line 9, lower fixed point projection join line 23 and angle separated time
21 truncation surface is rectangular channel.
Projection join line mechanism includes pan carriage, change gear 34, change gear axle 4, pulley 30, pulley spindle 29, flexible strand 33, rope support 19
With rope support screw 20.Pan carriage has two, is upper pan carriage 2 and left frame 5 respectively.Half section of the right side of upper pan carriage 2 and a left side are put down
The lower semisection moving frame 5 is provided with scale 16 and numerical value, with the position of this reference side projection and side projection.Pan carriage is c type
Strip structure, pan carriage two ends are hooked on projection plate 1.Pan carriage is provided with bar shaped locating slot 37, and locating slot 37 has cunning
Groove 12, chute 12 is narrower than locating slot 37.Left frame 5 upper end is provided with change gear axle 4, and change gear axle 4 is cased with change gear 34, and change gear 34 is ridden
In projection plate 1 upper end.After projection plate 1, all pan carriage are respectively arranged at two ends with pulley spindle 29, pulley spindle 29 are cased with slide
Wheel 30, pulley 30 is provided with two slideways, and each slideway is respectively wound with a flexible strand 33, and flexible strand 33 has four, each cunning
It is wound with two flexible strand 33, the two ends of every flexible strand 33 are separately fixed on the rope support 19 of projection plate 1 two sides on wheel 30.
Rope support 19 has eight, and rope support 19 is symmetrically fixed on the angle of 1 four sides of projection plate by rope support screw 20.Every flexible strand 33
Bypass pulley 30 rear steering to another pulley 30 of same pan carriage, turn again to be connected with rope support 19, become z or anti-z shape
Shape；The fixation of another flexible strand 33 corresponding thereto and trend are symmetrical with previous bar flexible strand 33, two flexible strand 33 with same
The winding direction of individual pulley 30 is contrary；To guarantee that pan carriage can translational motion on projection plate 1.
Mechanism of linear projection includes fixed point, dynamic point and projection join line, and fixed point includes pinpointing front projection, point level projection
With fixed point side projection, each projects and is made up of fixed point bearing 42, fixed point cap, fixed point axle 40, fixed point wind spring 41 and linear projection,
Fixed point bearing 42 is installed in the fixed point groove 39 on perspective plane, is cased with pinpointing cap outside the inner ring of fixed point bearing 42, fixed point cap sets
There is fixed point opening 43, fixed point cap divides fixed point front projection cap 8, point level projection hat 26 and fixed point side projection cap 14, fixed point
Bearing 42 inner ring is installed with and pinpoints axle 40, and fixed point axle 40 is provided with fixed point wind spring 41, pinpoints the inner of wind spring 41 and determines
Point axle 40 connects, and the outer end of fixed point wind spring 41 is connected with linear projection, and linear projection is flexible thin strip, is divided into straight line front to throw
Shadow 7, straight horizontal projection 27 and straight line side projection 15, linear projection is wrapped on fixed point wind spring 41, and linear projection passes through fixed
Point opening 43 reaches on projection plate 1, is connected with dynamic point.Linear projection is always exceptionally straight under the pulling of fixed point wind spring 41 to be projected
On plate 1, and length is variable.Dynamic point includes dynamic point front projection, dynamic point floor projection and dynamic point side projection, and each projection is by sliding
Block 36, projection fixture block 32, pin 38, dynamic point shell 35, dynamic point wind spring 31, dynamic point projection join line and dynamic point cap composition.Slide block 36 is long
Cube and the assembly of cylinder, have cylindrical hole in the cylinder of slide block 36, be provided with two projection fixture blocks 32, project fixture block in through hole
32 is half ladder circle cylindricality, clamps linear projection in the contact surface between two projection fixture blocks 32, and two projection fixture blocks 32 are by pin
38 connect into stepped cylindrical, and projection fixture block 32 can rotate in the cylindrical hole of slide block 36；The cuboid of slide block 36 puts into pan carriage
Locating slot 37 in, slide block 36 can slide in locating slot 37；Cylinder on slide block 36 is put in the chute 12 of pan carriage.Front
The cylindrical outer side of the slide block 36 of projection is connected with the inner of two dynamic point wind springs 31 arranged side by side, two dynamic points of dynamic point front projection
Wind spring 31 outer end connects left dynamic point projection join line 3 and upper dynamic point projection join line 11 respectively, dynamic point floor projection and side projection
The cylindrical outer side of slide block 36 is connected with the inner of a dynamic point wind spring 31, and dynamic point wind spring 31 outside of floor projection connects left dynamic point
Projection join line 3, connects upper dynamic point projection join line 11 outside the wind spring of side projection.The truncation surface of dynamic point wind spring 31 is circular.Dynamic
The outside of three projections of point is cased with dynamic point shell 35, and dynamic point shell 35 is provided with circular hole, and dynamic point projection join line arrives another by circular hole
Dynamic point projects, dynamic point projection join line under the pulling of dynamic point wind spring 31, always exceptionally straight on projection plate 1, and length is variable.Dynamic point
Cap is divided into dynamic point front projection cap 6, dynamic point floor projection cap 28 and dynamic point side projection cap 17, and dynamic point cap is tightened on by screw thread
On the screw of slide block 36 cylinder, by locked for dynamic point projection fixation on movable stand.
Using white, projection join line and font adopt black, and pan carriage adopts transparent material, dynamic point and fixed point to adopt on perspective plane
With redness, linear projection is using eye-catching color.
During demonstration this utility model, unscrew dynamic point front projection cap 6, dynamic point floor projection cap 28 and dynamic point side with handss and throw
Shadow cap 17, mobile dynamic point front projection screws dynamic point front projection cap 6, to lock straight line front projection 7 to after specified location
Position；Move dynamic point floor projection again and screw dynamic point floor projection cap 28 to after specified location, locking straight horizontal projection 27
Position；Read scale value on left frame 5 for the dynamic point floor projection again, mobile dynamic point side projection is right to upper pan carriage 2
Answer scale value position, then screw dynamic point side projection cap 17.When dynamic point projection is overlapped with fixed point projection, fixed point projection can be extracted
Cap, to avoid pinpointing the interference with dynamic point.Operate the various positions that can demonstrate straight line with this.
Figure 10 is the embodiment of horizontal line projection.
Figure 11 is the embodiment of frontal line projection.
Figure 12 is the embodiment of profile line projection.
Figure 13 is the embodiment of vertical line projection.
Figure 14 is the embodiment of vertical frontal line projection.
Figure 15 is the embodiment of vertical profile line projection.
Claims (1)
1. the straight line three-plane projection demonstration board of a kind of flexible drawing, including projection plate, projection join line mechanism, mechanism of linear projection,
It is characterized in that: projection plate is provided with x-axis, yh axle, yw axle and z-axis, x-axis, yh axle, yw axle and z-axis are divided into orthographic projection projection plate
Face, horizontal plane, lateral projection face and yh yw face；Yh yw face is provided with angle separated time；If the end points of straightway is fixed point and moves
Point；Fixed point is motionless point, and the frontal plane of projection of fixed point, floor projection and side projection are located at the centre on respective perspective plane, fixed point
Frontal plane of projection, floor projection and side projection be respectively equipped with fixed point groove, fixed point groove is ladder circular hole；Fixed point frontal plane of projection and
The vertical x-axis of line of floor projection, is set to left fixed point projection join line；The frontal plane of projection z vertical with the line of side projection of fixed point
Axle, is set to fixed point projection join line；The distance of the floor projection of fixed point to x-axis is equal to the side projection pinpointing to the distance of z-axis,
The line of floor projection to the angle separated time of fixed point is set to lower fixed point projection join line, and the line of side projection to the angle separated time slideway of fixed point sets
For right fixed point projection join line；X-axis, yh axle, yw axle, z-axis, left fixed point projection join line, right fixed point projection join line, the projection of upper fixed point are even
The truncation surface of line, lower fixed point projection join line and angle separated time is rectangular channel；Projection join line mechanism include pan carriage, change gear, change gear axle,
Pulley, pulley spindle, flexible strand, rope support and rope support screw；Pan carriage has two, is upper pan carriage and left frame respectively；Upper flat
The lower semisection on half section of the right side and left frame of moving frame is provided with scale and numerical value, with the position of the projection of this reference level and side projection
Put；Pan carriage is c type strip structure, and pan carriage two ends are hooked on projection plate；Pan carriage is provided with bar shaped locating slot, locating slot
On have chute, chute is narrower than locating slot；Left frame upper end is provided with change gear axle, and change gear axle is cased with change gear, and change gear rides over throwing
Shadow plate upper end；After projection plate, all pan carriage are respectively arranged at two ends with pulley spindle, and pulley spindle is cased with pulley, and pulley sets
There are two slideways, each slideway is respectively wound with a flexible strand, flexible strand has four, each pulley is wound with two flexibilities
Rope, the two ends of every flexible strand are separately fixed on the rope support of projection plate two sides；Rope support has eight, and rope support is by rope support screw
Symmetrically it is fixed on the angle of four sides of projection plate；Every flexible strand bypass pulley rear steering to same pan carriage another
Pulley, turns again to be connected with rope support, becomes z or anti-z shape；The fixation of another flexible strand corresponding thereto and trend with previous
Bar flexible strand is symmetrical, and two flexible strand are contrary with the winding direction of same pulley；To guarantee that pan carriage can translate on projection plate
Motion；Mechanism of linear projection includes fixed point, dynamic point and projection join line, fixed point includes pinpointing front projection, point level projects and
Fixed point side projection, each projection is made up of fixed point bearing, fixed point cap, fixed point axle, fixed point wind spring and linear projection, on perspective plane
Fixed point groove in fixed point bearing is installed, be cased with pinpointing cap outside the inner ring of fixed point bearing, fixed point cap is provided with fixed point opening, fixed point
Cap divides fixed point front projection cap, point level projection hat and fixed point side projection cap, and fixed point bearing inner race is installed with fixed point
Axle, fixed point axle is provided with fixed point wind spring, and the inner of fixed point wind spring is connected with fixed point axle, pinpoints outer end and the linear projection of wind spring
Connect, linear projection is flexible thin strip, be divided into straight line front projection, straight horizontal projection and straight line side projection, straight line is thrown
Shadow is wrapped on fixed point wind spring, and linear projection is reached on projection plate by pinpointing opening, is connected with dynamic point；Linear projection is fixed
Under the pulling of point wind spring always exceptionally straight on projection plate, and length is variable；Dynamic point includes dynamic point front projection, dynamic point floor projection
With dynamic point side projection, each projection is by slide block, projection fixture block, pin, dynamic point shell, dynamic point wind spring, dynamic point projection join line and dynamic point
Cap forms；Slide block is the assembly of cuboid and cylinder, has cylindrical hole in the cylinder of slide block, is provided with two projection folders in through hole
Block, projection fixture block is half ladder circle cylindricality, clamps linear projection in the contact surface between two projection fixture blocks, two projection fixture blocks
Stepped cylindrical is become by pin connection, projection fixture block can rotate in the cylindrical hole of slide block；The cuboid of slide block puts into determining of pan carriage
In the groove of position, slide block can slide in locating slot；Cylinder on slide block is put in the chute of pan carriage；The circle of the slide block of front projection
It is connected with the inner of two dynamic point wind springs arranged side by side, two dynamic point wind spring outer ends of dynamic point front projection connect a left side respectively outside post
Dynamic point projection join line and upper dynamic point projection join line, the cylindrical outer side of the slide block of dynamic point floor projection and side projection is connected with one
The inner of dynamic point wind spring, connects left dynamic point projection join line outside the dynamic point wind spring of floor projection, connects outside the wind spring of side projection
Connect dynamic point projection join line；The truncation surface of dynamic point wind spring is circular；The outside of three projections of dynamic point is cased with dynamic point shell, on dynamic point shell
Be provided with circular hole, dynamic point projection join line by circular hole arrive another dynamic point projection, dynamic point projection join line under the pulling of dynamic point wind spring,
Always exceptionally straight on projection plate, and length is variable；Dynamic point cap is divided into dynamic point front projection cap, dynamic point floor projection cap and dynamic point side
Face projection hat, dynamic point cap is tightened on the screw of slide block cylinder by screw thread, by locked for dynamic point projection fixation on movable stand；Throw
Using white, projection join line and font adopt black in shadow face, and it is red, directly that pan carriage adopts transparent material, dynamic point and fixed point to adopt
Line projection adopts eye-catching color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548078.1U CN205920690U (en) | 2016-06-08 | 2016-06-08 | Flexible traction's sharp three -plane projection demonstration board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548078.1U CN205920690U (en) | 2016-06-08 | 2016-06-08 | Flexible traction's sharp three -plane projection demonstration board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920690U true CN205920690U (en) | 2017-02-01 |
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ID=57877733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620548078.1U Withdrawn - After Issue CN205920690U (en) | 2016-06-08 | 2016-06-08 | Flexible traction's sharp three -plane projection demonstration board |
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| CN (1) | CN205920690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825765A (en) * | 2016-06-08 | 2016-08-03 | 沈阳工业大学 | Flexibly drawn straight line three-side projection demonstration board |
-
2016
- 2016-06-08 CN CN201620548078.1U patent/CN205920690U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825765A (en) * | 2016-06-08 | 2016-08-03 | 沈阳工业大学 | Flexibly drawn straight line three-side projection demonstration board |
| CN105825765B (en) * | 2016-06-08 | 2018-08-21 | 沈阳工业大学 | The straight line three-plane projection demonstration board of flexible drawing |
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