CN110171237A - A kind of combined type natural sciences Special teaching drawing instrument for classroom - Google Patents
A kind of combined type natural sciences Special teaching drawing instrument for classroom Download PDFInfo
- Publication number
- CN110171237A CN110171237A CN201910538581.7A CN201910538581A CN110171237A CN 110171237 A CN110171237 A CN 110171237A CN 201910538581 A CN201910538581 A CN 201910538581A CN 110171237 A CN110171237 A CN 110171237A
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- Prior art keywords
- block
- sliding slot
- chalk
- ellipse
- plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/045—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with cords or like flexible elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
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- Drawing Aids And Blackboards (AREA)
- Toys (AREA)
Abstract
The invention discloses a kind of combined type natural sciences Special teaching drawing instruments for classroom, including long slab, the driving device includes the lifting motor for being fixedly mounted on the lifting sliding slot bottom wall, the screw rod with the lifting sliding slot roof rotation connection is connected in the lifting motor, the threaded block being slidably connected with the lifting sliding slot is threaded on the screw rod, first clamping plate is up pulled, then clamping plate and bottom plate are fixed on the ledge for chalk on blackboard of blackboard by connecting spring, then long slab is pushed, long slab can be driven mobile by wheel, the present apparatus can pass through different combinations, draw various sizes of circle and ellipse in any position on blackboard, the straight line of different angle can also be drawn, compared to the big compasses of traditional blackboard, the present apparatus is when drawing circle, the center of circle will not deviate, diameter of a circle will not change, simultaneously The present apparatus, which overcomes conventional teaching instrument, can not draw oval problem.
Description
Technical field
The present invention relates to education sector, specially a kind of combined type natural sciences Special teaching drawing instrument for classroom.
Background technique
In classroom, math teacher at school when be frequently necessary to carry out picture circle, draw straight line, draw the patterns such as ellipse come into
Row teaching, existing picture instrument need teacher to find position with hand, then draw circle manually with big compasses when drawing circle, but
It is with big compasses when drawing circle, non-allow in the center of circle is easy to cause the center of circle to slide because of the sliding of hand, and because these are big
During use, two poles are easy to happen skidding to compasses, are changed so as to cause diameter of a circle, while existing
Some picture instruments, it is very difficult to draw oval.
Summary of the invention
The purpose of the present invention is to provide a kind of combined type natural sciences Special teaching drawing instruments for classroom, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of dedicated religion of combined type natural sciences for classroom
Drawing instrument, including long slab are learned, lifting sliding slot is equipped in the long slab, the lifting sliding slot is equipped with driving device；
The driving device includes the lifting motor for being fixedly mounted on the lifting sliding slot bottom wall, is connected in the lifting motor
With the screw rod of the lifting sliding slot roof rotation connection, it is threaded on the screw rod and is slidably connected with the lifting sliding slot
Threaded block, the right side of the threaded block are installed with rotary electric machine, and motor shaft, the motor shaft are connected in the rotary electric machine
On be installed with spill spin block, the right side of the spill spin block is equipped with the opening sliding slot of opening to the right, and the bottom wall of the opening sliding slot is set
There is fixture block sliding slot, taper fixture block is slidably connected in the fixture block sliding slot, is connected between the taper fixture block and the fixture block sliding slot
It is connected to fixture block spring, slidable connection has scale plate and ellipse in the opening sliding slot, and the taper fixture block is for fixing institute
State scale plate and the ellipse；
The right side of the long slab is equipped with T shape sliding slot, and the T shape sliding slot is equipped with for fixing the long slab and driving the length
The attachment device that plate is moved forward and backward is equipped in the scale plate for picture to be round and the paintbrush device of straight line, sets in the ellipse
Have for the elliptical set composite of picture.
On that basis of the above technical scheme, the attachment device is by T-shaped slider, connecting spring, clamping plate, interior grooves, length
Slide plate, reset spring, rotating bar, spill spin block, confinement block, empty slot, annular groove, bullet nose rod, bottom plate, bracket, wheel shaft and wheel subgroup
At slidably connecting the T-shaped slider in the T shape sliding slot, be connected between the T-shaped slider and the T shape sliding slot described
Connecting spring, the right side of the T-shaped slider are installed with the clamping plate, are equipped with the inner-concave that Open Side Down in the clamping plate
Slot slidably connects the long slide plate in the interior grooves, symmetrically connects between the long slide plate and the interior grooves
It is connected to the reset spring, the top surface of the roof of the interior grooves and the clamping plate is rotatably connected to the rotating bar, described
The top side of rotating bar is installed with the spill spin block, extends downwardly through the long slide plate on the downside of the rotating bar, and with it is described
The upper and lower side of long slide plate is rotatablely connected, and the bottom side of the rotating bar is installed with the confinement block, is equipped with institute in the long slide plate
Empty slot is stated, the inner wall of the empty slot is equipped with the annular groove, and the rotating bar is installed with and the annular groove in the empty slot
The bullet nose rod being slidably connected, the right side of the long slab are installed with the bottom plate, the upper side of the bottom plate and the length
The downside of slide plate is symmetrically installed with the bracket respectively, is rotatably connected to the wheel shaft in four brackets, each
The left and right sides of the wheel shaft is installed with the wheel respectively.
On that basis of the above technical scheme, the paintbrush device is made of corresponding groove, ledge for chalk on blackboard, in the scale plate bottom surface
Equipped with the corresponding groove, the corresponding groove can be slidably connected with the taper fixture block, and the left and right side of the scale plate, which is run through, to be set
There is the ledge for chalk on blackboard for fixing chalk.
On that basis of the above technical scheme, the set composite is by adjusting sliding slot, adjusting slider, rectangular block, fixed link, drawing
Motion block, symmetrical spring, card needle, winding axis, chuck, winding wheel, rope, traversing piece, friction pad, chalk block, mounting blocks, limit
Block, thin bar, fritter, little spring form, and the adjusting sliding slot are equipped in the ellipse, the bottom surface of the ellipse is additionally provided with separately
Corresponding groove described in one group slidably connects the adjusting slider in the adjusting sliding slot, and the right side of the adjusting slider is fixed
There is the rectangular block, the right side of the rectangular block is installed with the fixed link, and the bottom surface of the rectangular block is equipped with the pulling
Block, is symmetrically connected with the symmetrical spring between the pulling block and the rectangular block, the top surface for pulling block is fixed
There is the card needle that can be abutted with the corresponding groove in the ellipse, the right side of the ellipse is rotatably connected to described
Axis is wound, the chuck is installed on the left of the winding axis, is installed with the winding wheel on the right side of the winding axis, it is described to twine
The rope is wound on wheel, the other end of the rope is fixedly connected with the fixed link, is slidably connected on the rope
Have and symmetrical above and below in described traversing piece, described traversing piece is installed with the friction pad being slidably connected with the rope, the cross
The right side for moving block is installed with the chalk block, and the chalk block can fix chalk, and the right side of the ellipse is installed with
The mounting blocks slidably connect the limited block in the mounting blocks, and the bottom side of the limited block is installed with the thin bar, institute
The bottom side for stating thin bar is installed with the fritter, and the little spring, the limit are connected between the fritter and the mounting blocks
Block can be abutted with the chuck.
On that basis of the above technical scheme, the friction pad is made using rubber material, between the rope have compared with
Big frictional force.
On that basis of the above technical scheme, the confinement block is made using magnet material.
On that basis of the above technical scheme, the left and right side of the scale plate is designed with the quarter being aligned with the corresponding groove
Degree.
On that basis of the above technical scheme, the vulgar motor that the rotary electric machine uses, revolving speed are slower.
In conclusion the medicine have the advantages that the present apparatus can any position by different combinations, on blackboard
Various sizes of circle and ellipse are drawn, the straight line of different angle can also be drawn, compared to the big compasses of traditional blackboard, the present apparatus
When drawing circle, the center of circle will not be deviated, and diameter of a circle will not change, while the present apparatus overcomes conventional teaching instrument
Oval problem can not be drawn, more convenient can obtain and impart knowledge to students in classroom.
Detailed description of the invention
It, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only to invent
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of front view structure of the combined type natural sciences Special teaching drawing instrument entirety complete section for classroom of the present invention
Schematic diagram；
Fig. 2 is the partial enlarged view in Fig. 1 of the present invention at A；
Fig. 3 is the installation diagrammatic side view of paintbrush device in Fig. 1 of the present invention；
Fig. 4 is the installation diagrammatic side view of set composite in Fig. 1 of the present invention；
Fig. 5 is the partial enlarged view in Fig. 4 of the present invention at B；
Fig. 6 is the partial enlarged view in Fig. 4 of the present invention at C；
Fig. 7 is the left view in Fig. 1 of the present invention.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
Below with reference to Fig. 1-7, the present invention is described in detail, for sake of convenience, now such as to hereafter described orientation regulation
Under: hereafter described front-rear direction up and down is consistent with the front-rear direction up and down of Fig. 1 projection relation itself.
Please refer to Fig. 1-7, a kind of embodiment provided by the invention: a kind of combined type natural sciences Special teaching for classroom is drawn
Figure instrument, including long slab 21 are equipped with lifting sliding slot 23 in the long slab 21, and the lifting sliding slot 23 is equipped with driving device 101, institute
Stating driving device 101 includes the lifting motor 31 for being fixedly mounted on lifting 23 bottom wall of sliding slot, is connected in the lifting motor 31
It is connected to the screw rod 22 with lifting 23 roof of the sliding slot rotation connection, is threaded with and the lifting sliding slot on the screw rod 22
23 threaded blocks 24 being slidably connected, the right side of the threaded block 24 are installed with rotary electric machine 25, connect in the rotary electric machine 25
It is connected to motor shaft 26, spill spin block 73 is installed on the motor shaft 26, the right side of the spill spin block 73, which is equipped with, to be open to the right
Be open sliding slot 72, and the bottom wall of the opening sliding slot 72 is equipped with fixture block sliding slot 29, slidably connects taper in the fixture block sliding slot 29
Fixture block 28 is connected with fixture block spring 30 between the taper fixture block 28 and the fixture block sliding slot 29, can in the opening sliding slot 72
Scale plate 27 and ellipse 50 are slidably connected, the taper fixture block 28 is for fixing the scale plate 27 and the ellipse
50, the right side of the long slab 21 is equipped with T shape sliding slot 32, and the T shape sliding slot 32 is equipped with for fixing the long slab 21 and band
The attachment device 102 that the long slab 21 is moved forward and backward is moved, is equipped in the scale plate 27 for the round paintbrush device with straight line of picture
103, it is equipped in the ellipse 50 and is used for the elliptical set composite 104 of picture.
In addition, in one embodiment, the attachment device 102 includes the T shape being slidably mounted in the T shape sliding slot 32
Sliding block 34 is connected with connecting spring 33, the right side of the T-shaped slider 34 between the T-shaped slider 34 and the T shape sliding slot 32
It is installed with clamping plate 46, the interior grooves 40 that Open Side Down are equipped in the clamping plate 46, are slidably connected in the interior grooves 40
Long slide plate 38 is symmetrically connected with reset spring 39, the inner-concave between the long slide plate 38 and the interior grooves 40
The top surface of the roof of slot 40 and the clamping plate 46 is rotatably connected to rotating bar 74, and the top side of the rotating bar 74 is installed with spill spin block
42, the downside of the rotating bar 74 extends downwardly through the long slide plate 38, and rotates with the upper and lower side of the long slide plate 38
Connection, the bottom side of the rotating bar 74 are installed with confinement block 47, are equipped with empty slot 43 in the long slide plate 38, the empty slot 43 it is interior
Wall is equipped with annular groove 45, and the rotating bar 74 is installed with the bullet nose rod being slidably connected with the annular groove 45 in the empty slot 43
41, the right side of the long slab 21 is installed with bottom plate 48, the downside point of the upper side of the bottom plate 48 and the long slide plate 38
It is not installed with bracket 37 symmetrically, wheel shaft 35, the left and right of each wheel shaft 35 is rotatably connected in four brackets 37
Two sides are installed with wheel 36 respectively, first up pull the clamping plate 46, then pass through the connecting spring 33 for the clamping plate
46 and the bottom plate 48 be fixed on the ledge for chalk on blackboard of blackboard, then push the long slab 21, can be driven by the wheel 36
The long slab 21 is mobile, when needs are fixed not to be moved, rotates the spill spin block 42 to drive the rotating bar 74, institute
It states bullet nose rod 41 and the confinement block 47 rotates, the rotation of bullet nose rod 41 drives the long slide plate 38 up to move, to make
The wheel 36 obtained on the long slide plate 38 up moves, so that confinement block 47 is abutted with the blackboard slot, thus complete
At fixation.
In addition, in one embodiment, the paintbrush device 103 includes the corresponding groove that 27 bottom surface of scale plate is arranged in
71, the corresponding groove 71 can be slidably connected with the taper fixture block 28, and the left and right side of the scale plate 27, which is run through to be equipped with, to be used for
The ledge for chalk on blackboard 49 of fixed chalk, can be by 28 pulled down of taper fixture block, so that the scale plate 27 is inserted into described open
In mouth sliding slot 72, then the distance between the adjustable ledge for chalk on blackboard 49 and the motor shaft 26, then decontrol the taper
Then chalk is caught in the ledge for chalk on blackboard 49, so by fixture block 28 so that the taper fixture block 28 is caught in corresponding corresponding groove 71
After open the rotary electric machine 25, so that the motor shaft 26, the spill spin block 73 and the scale plate 27 be driven to rotate, thus
Picture circle is completed, the angle of the scale plate 27 is adjusted by the motor shaft 26, then with pen along the top of the scale plate 27
Face can draw the different straight line of angle.
In addition, in one embodiment, the set composite 104 includes the adjusting sliding slot being arranged in the ellipse 50
54, the bottom surface of the ellipse 50 be additionally provided with another group described in corresponding groove 71, slidably connect adjusting in the adjusting sliding slot 54
Sliding block 75, the right side of the adjusting slider 75 are installed with rectangular block 52, and the right side of the rectangular block 52 is installed with fixed link
53, the bottom surface of the rectangular block 52, which is equipped with, pulls block 56, symmetrically connects between the pulling block 56 and the rectangular block 52
There is symmetrical spring 55, the top surface for pulling block 56 is installed with the card that can be abutted with the corresponding groove 71 in the ellipse 50
Needle 57, the right side of the ellipse 50 are rotatably connected to winding axis 63, and the left side of the winding axis 63 is installed with chuck 64, institute
The right side for stating winding axis 63 is installed with winding wheel 62, and rope 51, the other end of the rope 51 are wound on the winding wheel 62
It is fixedly connected, is slidably connected on the rope 51 symmetrical above and below in traversing piece 60, described traversing piece 60 with the fixed link 53
It is installed with the friction pad 59 being slidably connected with the rope 51, traversing piece 60 of the right side is installed with chalk block 61, described
Chalk block 61 can fix chalk, and the right side of the ellipse 50 is installed with mounting blocks 69, the company of sliding in the mounting blocks 69
It is connected to limited block 70, the bottom side of the limited block 70 is installed with thin bar 68, and the bottom side of the thin bar 68 is installed with fritter 66, described
Little spring 67 is connected between fritter 66 and the mounting blocks 69, the limited block 70 can be abutted with the chuck 64, can be by institute
28 pulled down of taper fixture block is stated, the ellipse 50 is inserted into the spill spin block 73, so that the correspondence of the rightmost side
Slot 71 is directed at the taper fixture block 28, then unclamps the taper fixture block 28, then by the fritter 66 toward drop-down, to pass through
The thin bar 68 drives the limited block 70 to move down, and then rotates the chuck 64 by hand, so that the winding wheel 62 is put
Then the rope 51 for needing length out unclamps the fritter 66, then by 56 pulled down of pulling block, then by the square
Shape block 52, which is turned right, is drawn to the point of needs, then unclamps the pulling block 56, determines the fixed link 53 and the winding wheel 62
Position, then chalk is inserted into the chalk block 61, then adjusts seat of the chalk block 61 on the rope 51,
Then the chalk block 61 is held, then rope is tightened, then around the winding axis 63 and the fixed link 53
It is oval at picture.
In addition, in one embodiment, the friction pad 59 is made using rubber material, have between the rope 51
Biggish frictional force only firmly pulls described traversing piece 60 with hand, so that the movement of the chalk block 61 could be driven.
In addition, in one embodiment, the confinement block 47 is made using magnet material, when the confinement block 47 and chalk
In the case that slot is collided, thus can be attracting with ledge for chalk on blackboard.
In addition, in one embodiment, the left and right side of the scale plate 27 is designed with to be aligned with the corresponding groove 71
Scale, to facilitate the length for adjusting diameter of a circle and drawing straight line.
In addition, in one embodiment, the vulgar motor that the rotary electric machine 25 uses, revolving speed is slower, so as to have
Effect prevents chalk fracture when drawing circle.
When needing to start to draw, first clamping plate 46 is up pulled, then passes through connecting spring 33 for clamping plate 46 and bottom plate
48 are fixed on the ledge for chalk on blackboard of blackboard, then push long slab 21, long slab 21 can be driven mobile by wheel 36, when needing to fix
When movement, to drive rotating bar 74, bullet nose rod 41 and confinement block 47 to rotate, bullet nose rod 41 rotates rotation spill spin block 42
Drive long slide plate 38 up to move so that the wheel 36 on long slide plate 38 up moves so that confinement block 47 with it is black
Board slot abuts, to complete to fix, when needing picture circle, long slab 21 is first moved to suitable position, then opens lifting
Then motor 31 drives threaded block 24 to rise to proper height, is then inserted into scale plate 27 so that screw rod 22 be driven to rotate
It is open in sliding slot 72, then the distance between adjustable ledge for chalk on blackboard 49 and motor shaft 26, then decontrols taper fixture block 28, so that
Taper fixture block 28 is caught in corresponding corresponding groove 71, and then chalk is caught in ledge for chalk on blackboard 49, then opens rotary electric machine 25, from
And motor shaft 26, spill spin block 73 and scale plate 27 is driven to rotate, to complete picture circle, scale plate 27 is adjusted by motor shaft 26
Then angle can draw the different straight line of angle along the top surface of scale plate 27 with pen, when needing picture ellipse, by taper fixture block 28
Ellipse 50 is inserted into spill spin block 73 by pulled down, so that the corresponding groove 71 of the rightmost side is directed at taper fixture block 28, it is then loose
Taper fixture block 28 is opened, then by fritter 66 toward drop-down, to drive limited block 70 to move down by thin bar 68, is then revolved with hand
Turn chuck 64, so that winding wheel 62 releases the rope 51 for needing length, then unclamp fritter 66, then pulls on block 56 toward drop-down
It is dynamic, then rectangular block 52 is turned right and is drawn to the point of needs, then unclamps and pulls block 56, determines fixed link 53 and winding wheel 62
Then chalk is inserted into chalk block 61 by position, then adjust seat of the chalk block 61 on rope 51, then hold powder
Block 61, then tightens rope, then around oval at winding axis 63 and 53 picture of fixed link.
The beneficial effects of the present invention are: the present apparatus can be by different combinations, any position on blackboard is drawn different
The circle and ellipse of size, can also draw the straight line of different angle, and compared to the big compasses of traditional blackboard, the present apparatus is drawing circle
When, the center of circle will not deviate, and diameter of a circle will not change, while the present apparatus overcomes conventional teaching instrument and can not draw
Oval problem more convenient can be obtained and be imparted knowledge to students in classroom.
The above, the specific embodiment only invented, but invent protection scope be not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should all be covered within the protection scope of invention.Therefore, the protection scope of invention
It should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of combined type natural sciences Special teaching drawing instrument for classroom, including long slab, it is characterised in that: the long slab
In be equipped with lifting sliding slot, the lifting sliding slot is equipped with driving device；
The driving device includes the lifting motor for being fixedly mounted on the lifting sliding slot bottom wall, is connected in the lifting motor
With the screw rod of the lifting sliding slot roof rotation connection, it is threaded on the screw rod and is slidably connected with the lifting sliding slot
Threaded block, the right side of the threaded block are installed with rotary electric machine, and motor shaft, the motor shaft are connected in the rotary electric machine
On be installed with spill spin block, the right side of the spill spin block is equipped with the opening sliding slot of opening to the right, and the bottom wall of the opening sliding slot is set
There is fixture block sliding slot, taper fixture block is slidably connected in the fixture block sliding slot, is connected between the taper fixture block and the fixture block sliding slot
It is connected to fixture block spring, slidable connection has scale plate and ellipse in the opening sliding slot, and the taper fixture block is for fixing institute
State scale plate and the ellipse；
The right side of the long slab is equipped with T shape sliding slot, and the T shape sliding slot is equipped with for fixing the long slab and driving the length
The attachment device that plate is moved forward and backward is equipped in the scale plate for picture to be round and the paintbrush device of straight line, sets in the ellipse
Have for the elliptical set composite of picture.
2. a kind of combined type natural sciences Special teaching drawing instrument for classroom according to claim 1, it is characterised in that:
The attachment device is by T-shaped slider, connecting spring, clamping plate, interior grooves, long slide plate, reset spring, rotating bar, spill spin block, limit
Clamp dog, empty slot, annular groove, bullet nose rod, bottom plate, bracket, wheel shaft and wheel form, and slidably connect in the T shape sliding slot described
T-shaped slider, is connected with the connecting spring between the T-shaped slider and the T shape sliding slot, the right side of the T-shaped slider is solid
Equipped with the clamping plate, it is equipped with the interior grooves that Open Side Down in the clamping plate, is slidably connected in the interior grooves
Long slide plate is stated, the reset spring, the interior grooves are symmetrically connected between the long slide plate and the interior grooves
Roof and the top surface of the clamping plate be rotatably connected to the rotating bar, the top side of the rotating bar is installed with the spill spin block,
The long slide plate is extended downwardly through on the downside of the rotating bar, and is rotatablely connected with the upper and lower side of the long slide plate, it is described
The bottom side of rotating bar is installed with the confinement block, and the empty slot is equipped in the long slide plate, and the inner wall of the empty slot is equipped with described
Annular groove, the rotating bar are installed with the bullet nose rod being slidably connected with the annular groove, the long slab in the empty slot
Right side be installed with the bottom plate, the downside of the upper side of the bottom plate and the long slide plate is symmetrically installed with respectively
The bracket, the wheel shaft is rotatably connected in four brackets, and the left and right sides difference of each wheel shaft is fixed
State wheel.
3. a kind of combined type natural sciences Special teaching drawing instrument for classroom according to claim 1, it is characterised in that:
The paintbrush device is made of corresponding groove, ledge for chalk on blackboard, and the corresponding groove is equipped in the scale plate bottom surface, and the corresponding groove can be with
The taper fixture block is slidably connected, and the ledge for chalk on blackboard being equipped with for fixing chalk is run through in the left and right side of the scale plate.
4. a kind of combined type natural sciences Special teaching drawing instrument for classroom according to claim 1, it is characterised in that:
The set composite is by adjusting sliding slot, adjusting slider, rectangular block, fixed link, pulling block, symmetrical spring, card needle, winding axis, card
Disk, winding wheel, rope, traversing piece, friction pad, chalk block, mounting blocks, limited block, thin bar, fritter, little spring composition, it is described ellipse
Be equipped with the adjusting sliding slot in plectane, the bottom surface of the ellipse be additionally provided with another group described in corresponding groove, in the adjusting sliding slot
The adjusting slider is slidably connected, the right side of the adjusting slider is installed with the rectangular block, the right side of the rectangular block
Face is installed with the fixed link, and the bottom surface of the rectangular block is equipped with the pulling block, between the pulling block and the rectangular block
Bilateral symmetry is connected with the symmetrical spring, and the top surface for pulling block is installed with can be with the corresponding groove in the ellipse
The card needle abutted, the right side of the ellipse is rotatably connected to the winding axis, is installed on the left of the winding axis
The chuck is installed with the winding wheel on the right side of the winding axis, the rope, the rope is wound on the winding wheel
Other end be fixedly connected with the fixed link, slidably connected on the rope in described traversing piece, described traversing piece up and down
It symmetrically is installed with the friction pad being slidably connected with the rope, traversing piece of the right side is installed with the chalk block,
The chalk block can fix chalk, and the right side of the ellipse is installed with the mounting blocks, the company of sliding in the mounting blocks
It is connected to the limited block, the bottom side of the limited block is installed with the thin bar, and the bottom side of the thin bar is installed with the fritter, institute
It states and is connected with the little spring between fritter and the mounting blocks, the limited block can be abutted with the chuck.
5. a kind of combined type natural sciences Special teaching drawing instrument for classroom according to claim 1, it is characterised in that:
The friction pad is made using rubber material, has biggish frictional force between the rope.
6. a kind of combined type natural sciences Special teaching drawing instrument for classroom according to claim 1, it is characterised in that:
The confinement block is made using magnet material.
7. a kind of combined type natural sciences Special teaching drawing instrument for classroom according to claim 2, it is characterised in that:
The left and right side of the scale plate is designed with the scale being aligned with the corresponding groove.
8. a kind of combined type natural sciences Special teaching drawing instrument for classroom according to claim 4, it is characterised in that:
The vulgar motor that the rotary electric machine uses, revolving speed are slower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538581.7A CN110171237B (en) | 2019-06-20 | 2019-06-20 | Combined type teaching drawing instrument special for science for classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538581.7A CN110171237B (en) | 2019-06-20 | 2019-06-20 | Combined type teaching drawing instrument special for science for classroom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110171237A true CN110171237A (en) | 2019-08-27 |
| CN110171237B CN110171237B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910538581.7A Active CN110171237B (en) | 2019-06-20 | 2019-06-20 | Combined type teaching drawing instrument special for science for classroom |
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| CN (1) | CN110171237B (en) |
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| CN206012142U (en) * | 2016-06-24 | 2017-03-15 | 李彦昕 | A Multifunctional Drawing Tool for High School Mathematics |
| CN208006558U (en) * | 2017-08-03 | 2018-10-26 | 徐启凡 | A kind of mathematics diagraph |
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| CN109080333A (en) * | 2018-08-07 | 2018-12-25 | 常骏驰 | A kind of teaching apparatus for mathematics |
| CN109703247A (en) * | 2019-01-30 | 2019-05-03 | 王玲 | A kind of higher mathematics picture rectangle teaching aid |
| CN208993364U (en) * | 2018-05-15 | 2019-06-18 | 大同新成新材料股份有限公司 | A kind of device for drawing large-diameter circular |
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| CN205810205U (en) * | 2016-04-13 | 2016-12-14 | 姜华 | Blackboard and teaching aid integrated tool for mathematical education |
| CN206012142U (en) * | 2016-06-24 | 2017-03-15 | 李彦昕 | A Multifunctional Drawing Tool for High School Mathematics |
| CN208006558U (en) * | 2017-08-03 | 2018-10-26 | 徐启凡 | A kind of mathematics diagraph |
| CN208993364U (en) * | 2018-05-15 | 2019-06-18 | 大同新成新材料股份有限公司 | A kind of device for drawing large-diameter circular |
| CN109080333A (en) * | 2018-08-07 | 2018-12-25 | 常骏驰 | A kind of teaching apparatus for mathematics |
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| CN109703247A (en) * | 2019-01-30 | 2019-05-03 | 王玲 | A kind of higher mathematics picture rectangle teaching aid |
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| CN110171237B (en) | 2020-10-27 |
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