CN110202985A - A kind of mathematical education aided drawing device - Google Patents
A kind of mathematical education aided drawing device Download PDFInfo
- Publication number
- CN110202985A CN110202985A CN201910415135.7A CN201910415135A CN110202985A CN 110202985 A CN110202985 A CN 110202985A CN 201910415135 A CN201910415135 A CN 201910415135A CN 110202985 A CN110202985 A CN 110202985A
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- sliding block
- connecting rod
- arc sections
- drawing device
- aided drawing
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- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 244000309464 bull Species 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 15
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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Abstract
This application provides a kind of mathematical education aided drawing devices, including showing device and rectangular coordinate system aided drawing device, rectangular coordinate system aided drawing device includes the first guide rod, the second guide rod, the first sliding block, the second sliding block, connecting rod and third sliding block, connecting rod has slide bar portion, the two sides in slide bar portion are respectively equipped with a sliding slot, and third sliding block includes: slider body；Ball retainer, ball retainer are fixed on slider body, and ball retainer is equipped with several pairs of limit holes；Several pairs of balls, several pairs of balls are respectively contained in corresponding limit hole, and the side of each ball contradicts in corresponding sliding slot；A pair of of pulley mechanism, each pulley mechanism include a pair of of belt wheel and the belt that is sheathed on a pair of of belt wheel, and the other side of each ball contradicts on corresponding belt.The first sliding block, the second sliding block and the third sliding block sliding smoothness of mathematical education provided by the present application aided drawing device, and the locking of locking device is reliable.
Description
Technical field
The present invention relates to a kind of mathematical education aided drawing devices, more particularly to a kind of mathematical education aided drawing
Device.
Background technique
In the teaching process of mathematics, teacher is in order to the more accurately graphing on blackboard, it is often necessary to borrow
Assiatant has as auxiliary.
Publication CN201711203819.8 discloses a kind of Higher Mathematics Teaching apparatus, including pedestal, on pedestal
It is provided with the lifting device for adjusting whole height, the top of lifting device is provided with the displaying dress of teaching writing and displaying
It sets, shows the rectangular coordinate system aided drawing device being provided on device for drawing parallel lines, rectangular coordinate system aided drawing
Removably be connected with the polar coordinate system aided drawing device for drawing concentric circles on device, show device include left side,
Upper side edge, right edge and lower side are fixedly connected sequentially the frame of composition, and rectangular coordinate system aided drawing device includes leading to respectively
The first guide rod and the second guide rod that screw is fixed on left side and right edge are crossed, slidably connecting on the first guide rod can
The first sliding block moved left and right slidably connects the second sliding block that can be moved left and right, the first sliding block and second on the second guide rod
It is provided with connecting rod with a scale between sliding block, the third sliding block that can slide up and down is connected on connecting rod.But it is used in teaching
Find in the process, often there is clamping stagnation in sliding process in the first sliding block, the second sliding block and third sliding block, teacher need to its into
It can be continued to use after row adjustment, affect the drawing efficiency of teacher.
It is those skilled in the art's urgency in conclusion how to make the first sliding block, the second sliding block and the sliding of third sliding block smooth
Problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of mathematical education aided drawing devices, solve existing first sliding block,
The problem of often there is clamping stagnation, influence teacher's drawing efficiency in sliding in two sliding blocks and third sliding block.
In order to solve the above technical problems, the invention provides the following technical scheme: a kind of mathematical education aided drawing device,
Including showing that device and rectangular coordinate system aided drawing device, the rectangular coordinate system aided drawing device include the first guiding
Bar, the second guide rod, the first sliding block, the second sliding block are provided with connecting rod between first sliding block and second sliding block, described
Third sliding block is slidably connected on connecting rod, the first ruler is provided on the third sliding block, and the connecting rod has slide bar portion, institute
The two sides for stating slide bar portion are respectively equipped with a sliding slot, and two sliding slots extend along the length direction of the connecting rod, the third sliding block
It include: slider body, the slider body is erected in the slide bar portion, and the slide bar portion can be in the back side of the slider body
Middle part the second back-trough in sliding up and down, an opposite side groove, opposite side groove difference are also symmetrically arranged on the slider body
Positioned at the two sides in the slide bar portion, and an opposite side groove is connected with second back-trough；Ball retainer, the ball are protected
It holds frame to be fixed on the slider body, the ball retainer is equipped with several pairs of limit holes, and several pairs of limit holes are described in
The length direction interval of connecting rod is arranged, and each pair of limit hole is symmetricly set on the two sides in the slide bar portion；Several pairs of balls, if
It is dry that ball is respectively contained in corresponding limit hole, and each ball can freely roll in corresponding limit hole, often
The two sides in the slide bar portion are symmetricly set on to ball, and the side of each ball contradicts the cell wall in corresponding sliding slot
On；A pair of of pulley mechanism, a pair of of pulley mechanism are separately positioned in an opposite side groove, and each pulley mechanism includes one
To belt wheel and the belt that is sheathed on a pair of of belt wheel, a pair of of belt wheel is arranged along the length direction of the connecting rod, each ball it is another
Side contradicts on corresponding belt.
Further, the slider body is equipped with locking mechanism, and the locking mechanism is for locking the third sliding block
Position on the connecting rod.
Further, the locking mechanism includes: locking piece, and the pushing pan portion of the lower part of the locking piece is placed in institute
It states in the first back-trough of the back side of connecting rod, the upper bull stick portion of the locking piece being located above the pushing pan portion sequentially passes through institute
The through-hole of the slip hole, the slider body of stating connecting rod extends outwardly；Upper knob, the upper knob are fixed on the upper bull stick portion
Outer end；Buckle closure, the buckle closure are used to the upper knob being fixed on the slider body, and the upper knob can be in the button
Axis in lid along the upper bull stick portion is freely rotated；Wherein, it by operating the upper knob, can drive under the locking piece
The side plane in platen portion tightly contradicts on an inner sidewall of first back-trough, so that the third sliding block is locked
On the connecting rod.
Further, the locking mechanism further includes friction band, and the friction band is fixed on the one of first back-trough
On inner sidewall, the side plane for pushing pan portion can tightly be pressed on the friction and take.
Further, the locking mechanism further includes insurance lock, and the insurance lock is mounted on the upper bull stick portion
On, the insurance lock after preventing the locking piece from locking for loosening.
Further, the safety lock fastener has sequentially connected first arc sections, the second arc sections, the first bending
Portion, third arc sections, the second bending part and the 4th arc sections, second arc sections, the third arc sections and the described 4th
Arc sections are located on same circumference, and second arc sections, the third arc sections and the 4th arc sections mutual cooperation make
The safety lock retaining ring is located in the upper bull stick portion, and the outer end of first bending part and second bending part supports
On the inner sidewall of first back-trough, so that insurance lock will not generate rotation, first circular arc relative to the connecting rod
Circle where portion with it is tangent outside the circle where second arc sections, the pushing pan portion is equipped with bar portion always, the straight-bar
Portion can be fastened in first arc sections.
Further, the two sides in the slide bar portion of the connecting rod are respectively equipped with fixed plate portion.
Further, first sliding block and second sliding block are similar to the third slide block structure, and described first
Guide rod and second guide rod are similar to the link mechanism.
It can be seen from above-mentioned technical proposal the invention has the following advantages:
In the present invention, ball is set on third sliding block, so that third sliding block and connecting rod in third sliding block slipping
Between be rolling friction, compare sliding friction, the frictional resistance that rolling friction generates is smaller, and in mobile third sliding block process
In, if third sliding block is slightly glanced off to side, the belt of a pair of of pulley mechanism can make corresponding adjustment in time, one
The belt of side can be compressed slightly, and the belt of the other side can slightly restore deformation, to guarantee that ball can continue to normally roll, into
And third sliding block is made to slide smoothness on connecting rod, be not in catching phenomenon, effectively improve the drawing efficiency of teacher；
Meanwhile first sliding block and the second sliding block it is similar to third slide block structure, the first guide rod and the second guide rod are equal
Similar to link mechanism, so that the first sliding block slides smoothness on the first guide rod, the second sliding block slides on the second guide rod
Smoothness is not in catching phenomenon, effectively improves the drawing efficiency of teacher；
Locking mechanism provided by the invention can effectively lock position of the third sliding block on connecting rod, and easy to operate, use
It is convenient, wherein insure in locking mechanism lock setting can effectively prevent locking piece locking after loosens so that locking mechanism is to the
The locking of three sliding blocks is relatively reliable.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is partial structural diagram of the invention.
Fig. 2 be Fig. 1 in A-A to schematic cross-sectional view.
Fig. 3 is the partial enlargement structural representation of Fig. 2.
Fig. 4 is the schematic cross-sectional view of the B-B direction in Fig. 2.
Fig. 5 is the enlarged structure schematic diagram at the C in Fig. 4.
Fig. 6 is structural schematic diagram of the Fig. 5 in locking mechanism in the open state.
Description of symbols: left side 1, the first guide rod 2, the first sliding block 3, connecting rod 4, slide bar portion 41, sliding slot 411,
One back-trough 412, fixed plate portion 42, third sliding block 5, slider body 51, the second back-trough 511, side groove 512, leads to slip hole 413
Hole 513, ball retainer 52, limit hole 521, ball 53, belt wheel 54, belt 55, support roller 56, the first ruler 6, locking mechanism
7, locking piece 71, upper bull stick portion 711, pushing pan portion 712, side plane 7121, straight-bar portion 713, upper knob 72, "-" type boss
721, rub band 73, the 74, first arc sections 741 of insurance lock, card slot 7411, the second arc sections 742, the first bending part 743, the
Three-arc portion 744, the second bending part 745, the 4th arc sections 746, buckle closure 75, the second guide rod 8, the second sliding block 9.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Below with reference to Fig. 1 to Fig. 6, the invention will be further described, and a kind of mathematical education as shown in Figure 1 is drawn with auxiliary
Map device, including show device and rectangular coordinate system aided drawing device, show that device includes by left side 1, upper side edge, right side
Side and lower side are fixedly connected sequentially the display board in the frame and frame of composition, and rectangular coordinate system aided drawing device includes the
The both ends of one guide rod 2, the second guide rod 8, the first sliding block 3 and the second sliding block 9, the first guide rod 2 and the second guide rod 8 are divided equally
It not being fixed by screws on the left side 1 and right edge for showing device, the first guide rod 2 is located at the upper end of display board, and second
Guide rod 8 is located at the lower end of display board, and what the first sliding block 3 can move left and right is slidably connected on the first guide rod 2, the second sliding block
9 can move left and right be slidably connected on the second guide rod 8, be provided with company with a scale between the first sliding block 3 and the second sliding block 9
Bar 4 slidably connects third sliding block 5 on connecting rod 4, the first ruler 6 is provided on third sliding block 5.
In the present embodiment, as shown in Figure 1 and Figure 2, connecting rod 4 has slide bar portion 41 and a pair of of fixed plate portion 42, a pair of of fixed plate
The two sides in slide bar portion 41 are arranged in portion 42, and fixed plate portion 42 is equipped with through-hole, will pass through screw that the both ends of connecting rod 4 are solid respectively
It is scheduled on the first sliding block 3 and the second sliding block 9, while screw also can stop third sliding block 5 at the both ends of connecting rod 4, it is sliding to prevent third
Block 5 is slipped from connecting rod 4, and the two sides in slide bar portion 41 are respectively equipped with a sliding slot 411, and two sliding slots 411 are along the length side of connecting rod 4
To extension, the slide bar portion 41 of connecting rod 4 is equipped with slip hole 413, and slip hole 413 extends along the length direction of connecting rod 4.
In the present embodiment, as shown in Figure 1, Figure 2, Figure 3, Figure 4, third sliding block 5 includes slider body 51, ball retainer
52, several pairs of balls 53 and a pair of of pulley mechanism, slider body 51 are erected in slide bar portion 41, and slide bar portion 41 can be in sliding block sheet
It is slid up and down in second back-trough 511 at the middle part of the back side of body 51, is also symmetrically arranged with an opposite side groove 512 on slider body 51,
One opposite side groove 512 is located at the two sides in slide bar portion 41, and an opposite side groove 512 is connected with the second back-trough 511, a pair of
Pulley mechanism is separately positioned in an opposite side groove 512, and the pulley mechanism includes a pair of is arranged on slider body 51
Belt wheel 54 and the belt 55 that is sheathed on a pair of of belt wheel 54, a pair of of belt wheel 54 arrange that ball is kept along the length direction of connecting rod 4
Frame 52 is fixed on slider body 51, and ball retainer 52 is equipped with several pairs of limit holes 521, and several pairs of limit holes 521 are along even
The length direction interval of bar 4 is arranged, and each pair of limit hole 521 is symmetricly set on the two sides in slide bar portion 41, several pairs of balls 53
It is respectively contained in corresponding limit hole 521, and each ball 53 can freely roll in corresponding limit hole 521, and
The side of each ball 53 is pressed on the cell wall of corresponding sliding slot 411, and the other side of each ball 53 is pressed on accordingly
Belt 55 on, and belt 55 is made slightly to generate deformation, when third sliding block 5 slides in slide bar portion 41, several pairs of balls 53
The frictional force generated between sliding slot 411 can drive ball 53 to roll, and the ball 53 rolled then will drive belt 55 around corresponding
Belt wheel 54 rotate so that in 5 slipping of third sliding block between third sliding block 5 and connecting rod 4 be rolling friction, compare
The frictional resistance of sliding friction, generation is smaller, and during mobile third sliding block 5, if third sliding block 5 is slightly sent out to side
Raw deflection, the belt 55 of a pair of of pulley mechanism can make corresponding adjustment in time, and the belt 55 of side can be compressed slightly,
The belt 55 of the other side can slightly restore deformation, to guarantee that ball 53 can continue to normally roll, so that third sliding block 5 exists
Smoothness is slid on connecting rod 4, is not in catching phenomenon, is effectively improved the drawing efficiency of teacher, in addition, in order to enable ball 53
Enough to be more reliably pressed on corresponding belt 55, pulley mechanism further includes multiple support rollers 56, and support roller 56 can be rotated
Ground is arranged on slider body 51, and each support roller 56 is pressed on the inside of corresponding belt 55.
In the present embodiment, shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, slider body 51 is equipped with locking mechanism 7, lock
Determining mechanism 7 for locking position of the third sliding block 5 on connecting rod 4, locking mechanism 7 includes locking piece 71, upper knob 72, friction band
73 and buckle closure 75, the pushing pan portion 712 of the lower part of locking piece 71 be placed in the first back-trough 412 of the back side of connecting rod 4, locking piece
The upper bull stick portion 711 that 71 be located at pushes the top of pan portion 712 sequentially pass through the slip hole 413 of connecting rod 4, slider body 51 it is logical
Hole 513 extends outwardly, and upper knob 72 is fixed on the outer end in bull stick portion 711, and buckle closure 75 is located at the top of upper knob 72, buckle closure
75 are fixed on slider body 51, and the top that the "-" type boss 721 on 72 top of upper knob passes through buckle closure 75 extends outwardly, upper rotation
Button 72 can the axis in buckle closure 75 along upper bull stick portion 711 be freely rotated, friction band 73 be fixed on the first back-trough 412 one inside
On wall, friction band 73 is for increasing friction force, so that third sliding block 5 is more reliably locked on connecting rod 4, wherein logical
The "-" type boss 721 for crossing twisting upper knob 72 can drive locking piece 71 to rotate, and then drive the pushing pan portion of locking piece 71
712 side plane 7121 is tightly pressed on friction band 73, so that third sliding block 5 is locked on connecting rod 4, contact lock
Periodically, reversely twisting upper knob 72 separates the pushing pan portion 712 of locking piece 71 with friction band 73, easy to operate, uses
It is convenient.
In the present embodiment, shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, locking mechanism 7 further includes insurance lock 74, is protected
Danger lock 74 is bent by one block of plate, and insurance lock 74 is mounted in bull stick portion 711, and insurance lock 74 is for preventing from locking
Determine to loosen after part 71 locks, insurance lock 74 has sequentially connected first arc sections 741, the second arc sections 742, the first bending
Portion 743, third arc sections 744, the second bending part 745 and the 4th arc sections 746, the second arc sections 742, third arc sections 744
It is located on same circumference with the 4th arc sections 746, the second arc sections 742, third arc sections 744 and the 4th arc sections 746 are mutually
Cooperation is set in insurance lock 74 in bull stick portion 711, and the outer end of the first bending part 743 and the second bending part 745 supports
On the inner sidewall of the first back-trough 412, the purpose of setting of the first bending part 743 and the second bending part 745 is to limit insurance
Lock 74 will not generate rotation relative to connecting rod 4, the circle foreign minister where circle and the second arc sections 742 where the first arc sections 741
It cuts, the arc length of the first arc sections 741 pushes pan portion greater than half circle, 741 one card slot 7411 of interior formation of the first arc sections
712 are equipped with bar portion 713 always, and when driving 71 spin locking of locking piece, straight-bar portion 713 can be with pushing pan portion 712 together
It is rotated around upper bull stick portion 711, until locking piece 71 locks, straight-bar portion 713 is fastened on the card slot 7411 of the first arc sections 741 at this time
It is interior, when unlocking, need manpower driving straight-bar portion 713 to rotate around upper bull stick portion 711, straight-bar portion 713 just can be from the first circular arc
It is detached from the card slot 7411 in portion 741.
In the present embodiment, as shown in Figure 1, the first sliding block 3 and the second sliding block 9 are similar to 5 structure of third sliding block, first is led
It is similar to 4 structure of connecting rod to bar 2 and the second guide rod 8, so that the first sliding block 3 slides smoothness on the first guide rod 2, second
Sliding block 9 slides smoothness on the second guide rod 8, effectively improves the drawing efficiency of teacher.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of mathematical education aided drawing device, including show device and rectangular coordinate system aided drawing device, it is described straight
Angular coordinate system aided drawing device includes the first guide rod (2), the second guide rod (8), the first sliding block (3), the second sliding block (9),
It is provided with connecting rod (4) between first sliding block (3) and second sliding block (9), slidably connects third on the connecting rod (4)
Sliding block (5) is provided with the first ruler (6) on the third sliding block (5), which is characterized in that the connecting rod (4) has slide bar portion
(41), the two sides of the slide bar portion (41) are respectively equipped with a sliding slot (411), and two sliding slots (411) are along the length of the connecting rod (4)
It spends direction to extend, the third sliding block (5) includes:
Slider body (51), the slider body (51) are erected on the slide bar portion (41), and the slide bar portion (41) can be in institute
Sliding up and down in second back-trough (511) at the middle part of the back side of slider body (51) is stated, is gone back on the slider body (51) symmetrical
Equipped with an opposite side groove (512), an opposite side groove (512) is located at the two sides of the slide bar portion (41), and an opposite side groove
(512) it is connected with second back-trough (511)；
Ball retainer (52), the ball retainer (52) are fixed on the slider body (51), the ball retainer
(52) several pairs of limit holes (521) are equipped with, several pairs of limit holes (521) are arranged along the length direction interval of the connecting rod (4),
And each pair of limit hole (521) is symmetricly set on the two sides of the slide bar portion (41)；
Several pairs of balls (53), several pairs of balls (53) are respectively contained in corresponding limit hole (521), and each ball
(53) it can freely be rolled in corresponding limit hole (521), each pair of ball (53) is symmetricly set on the slide bar portion (41)
Two sides, and the side of each ball (53) contradicts on the cell wall of corresponding sliding slot (411)；
A pair of of pulley mechanism, a pair of of pulley mechanism are separately positioned in an opposite side groove (512), and each pulley mechanism is equal
Including a pair of of belt wheel (54) and the belt (55) being sheathed on a pair of of belt wheel (54), a pair of of belt wheel (54) is along the connecting rod (4)
Length direction arrangement, the other side of each ball (53) contradicts on corresponding belt (55).
2. mathematical education according to claim 1 aided drawing device, which is characterized in that on the slider body (51)
Equipped with locking mechanism (7), the locking mechanism (7) is for locking position of the third sliding block (5) on the connecting rod (4).
3. mathematical education according to claim 2 aided drawing device, which is characterized in that locking mechanism (7) packet
It includes:
Locking piece (71), the pushing pan portion (712) of the lower part of the locking piece (71) are placed in the of the back side of the connecting rod (4)
In one back-trough (412), the upper bull stick portion (711) of the locking piece (71) being located above pushing pan portion (712) is successively worn
The through-hole (513) of the slip hole (413), the slider body (51) of crossing the connecting rod (4) extends outwardly；
Upper knob (72), the upper knob (72) are fixed on the outer end of the upper bull stick portion (711)；
Buckle closure (75), the buckle closure (75) for the upper knob (72) to be fixed on the slider body (51), it is described on
Knob (72) can be freely rotated in the interior axis along the upper bull stick portion (711) of the buckle closure (75)；
Wherein, by operating the upper knob (72), the side plane of the pushing pan portion (712) of the locking piece (71) can be driven
(7121) it tightly contradicts on an inner sidewall of first back-trough (412), so that the third sliding block (5) is locked
On the connecting rod (4).
4. mathematical education according to claim 3 aided drawing device, which is characterized in that the locking mechanism (7) is also
Including friction band (73), the friction band (73) is fixed on an inner sidewall of first back-trough (412), the pushing pan portion
(712) side plane (7121) can be tightly pressed on the friction band (73).
5. mathematical education according to claim 4 aided drawing device, which is characterized in that the locking mechanism (7) is also
(74) are latched including insurance, the insurance lock (74) is mounted on the upper bull stick portion (711), and the insurance lock (74) is used
It is loosened after preventing the locking piece (71) from locking.
6. mathematical education according to claim 5 aided drawing device, which is characterized in that insurance lock (74) tool
Have sequentially connected first arc sections (741), the second arc sections (742), the first bending part (743), third arc sections (744),
Second bending part (745) and the 4th arc sections (746), second arc sections (742), the third arc sections (744) and institute
It states the 4th arc sections (746) to be located on same circumference, second arc sections (742), third arc sections (744) and described
The mutual cooperation of 4th arc sections (746) is set in the insurance lock (74) on the upper bull stick portion (711), first folding
The outer end of turn of bilge (743) and second bending part (745) supports on the inner sidewall of first back-trough (412), so that
Insurance lock (74) will not generate rotation relative to the connecting rod (4), the circle where first arc sections (741) with it is described
Tangent outside circle where second arc sections (742), the pushing pan portion (712) is equipped with bar portion (713) always, the straight-bar portion
(713) it can be fastened in first arc sections (741).
7. mathematical education according to claim 1 aided drawing device, which is characterized in that the slide bar of the connecting rod (4)
The two sides in portion (41) are respectively equipped with fixed plate portion (42).
8. mathematical education according to any one of claim 1 to 7 aided drawing device, which is characterized in that described
One sliding block (3) and second sliding block (9) are similar to third sliding block (5) structure, first guide rod (2) and described
Second guide rod (8) is similar to the connecting rod (4) structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415135.7A CN110202985B (en) | 2019-05-17 | 2019-05-17 | Mathematics teaching is with supplementary drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415135.7A CN110202985B (en) | 2019-05-17 | 2019-05-17 | Mathematics teaching is with supplementary drawing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110202985A true CN110202985A (en) | 2019-09-06 |
| CN110202985B CN110202985B (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910415135.7A Active CN110202985B (en) | 2019-05-17 | 2019-05-17 | Mathematics teaching is with supplementary drawing device |
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| CN108583146A (en) * | 2018-05-22 | 2018-09-28 | 马鞍山师范高等专科学校 | Animation painter easel |
| CN109050110A (en) * | 2018-07-11 | 2018-12-21 | 徐安旭 | Template adjustment mechanism, drawing board and the application method of mathematical education drawing board |
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Application publication date: 20190906 Assignee: ZHEJIANG FEIYOU KANGTI EQUIPMENT Co.,Ltd. Assignor: ZHEJIANG INDUSTRY & TRADE VACATIONAL College Contract record no.: X2023330000085 Denomination of invention: An auxiliary drawing device for mathematics teaching Granted publication date: 20201225 License type: Common License Record date: 20230310 |
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Application publication date: 20190906 Assignee: Wenzhou Zuoan Industrial Design Co.,Ltd. Assignor: ZHEJIANG INDUSTRY & TRADE VACATIONAL College Contract record no.: X2023330000803 Denomination of invention: A Kind of Auxiliary Drawing Device for Mathematics Teaching Granted publication date: 20201225 License type: Common License Record date: 20231026 Application publication date: 20190906 Assignee: Wenzhou Lanhu Integrated Design Co.,Ltd. Assignor: ZHEJIANG INDUSTRY & TRADE VACATIONAL College Contract record no.: X2023330000802 Denomination of invention: A Kind of Auxiliary Drawing Device for Mathematics Teaching Granted publication date: 20201225 License type: Common License Record date: 20231026 |