CN209534569U - A kind of drawing teaching aid - Google Patents
A kind of drawing teaching aid Download PDFInfo
- Publication number
- CN209534569U CN209534569U CN201821884926.1U CN201821884926U CN209534569U CN 209534569 U CN209534569 U CN 209534569U CN 201821884926 U CN201821884926 U CN 201821884926U CN 209534569 U CN209534569 U CN 209534569U
- Authority
- CN
- China
- Prior art keywords
- terminal pad
- ruler
- positioning
- teaching aid
- drawing teaching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of drawing teaching aid, belongs to educational aid technical field, including the first ruler, the second ruler, location hole and positioning component.One end of first ruler is equipped with integrally formed first terminal pad；One end of second ruler is equipped with integrally formed second terminal pad, and the second terminal pad is located at the lower section of the first terminal pad, and connect with the first terminal pad along central axis rotation；The quantity of location hole be it is multiple, the upper surface of the second terminal pad is uniformly distributed in along the center of circle of the second terminal pad；Positioning component is adjustable to be arranged in the first terminal pad, and for cooperating location hole to limit the rotational angle of the first ruler and the second ruler, angle index is uniformly distributed in the upper surface of the second terminal pad along the center of circle of the second terminal pad；Peep hole is in the first terminal pad of setting, for observing the variation of angle index when the first terminal pad is rotated along the second terminal pad.A kind of drawing teaching aid provided by the utility model is when drawing angle, it is not necessary to drawing teaching aid is replaced repeatedly, it is easy to operate.
Description
Technical field
The utility model belongs to educational aid technical field, is to be related to a kind of drawing teaching aid more specifically.
Background technique
In teaching process, generally require to draw figure of various shapes.At present in teaching, the drafting at angle need first with
After protractor determines angle, then using the drafting at ruler or set square completion angle, drawing teaching aid is replaced repeatedly, when occupying teaching
Between, and it is cumbersome.
Utility model content
The purpose of this utility model is to provide a kind of drawing teaching aids, it is intended to which when solving to draw angle, replacement, which is drawn, repeatedly is taught
Tool occupies instructional blocks of time, cumbersome problem.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of drawing teaching aid, comprising:
First ruler, one end are equipped with integrally formed first terminal pad；
Second ruler, one end are equipped with integrally formed second terminal pad, and second terminal pad is located at first connection
The lower section of disk, and connect with first terminal pad along central axis rotation；
Location hole, quantity be it is multiple, be uniformly distributed in the upper of second terminal pad along the center of circle of second terminal pad
End face；
Positioning component, it is adjustable to be arranged in first terminal pad, for cooperating the location hole to limit described the
The rotational angle of one ruler and the second ruler；
Angle index is uniformly distributed in the upper surface of second terminal pad along the center of circle of second terminal pad；And
Peep hole, through being arranged in first terminal pad, for observing first terminal pad along second connection
The variation of angle index when disk rotates.
Further, the positioning component includes:
Positioning chamber is the stairstepping cavity that the diameter at both ends is less than the diameter at middle part, runs through first terminal pad；
Positioning pin runs through the positioning chamber, and lower end is threaded through the positioning hole；
Snap-gauge is fixed on the positioning pin, and is arranged in the positioning chamber；And
Spring is set on the positioning pin, is pressed between the upper end of the positioning chamber and the upper surface of the snap-gauge.
Further, the positioning component further include:
Anti-rotation seamed edge is disposed longitudinally on the side of the positioning chamber；And
Limited bayonet is provided with the side of the snap-gauge, is slidably matched with the anti-rotation seamed edge.
Further, the lower part of the positioning pin is inclined end face, and the bottom of the location hole is and the positioning pin
The inclined surface that inclined end face matches.
Further, a kind of drawing teaching aid further include:
The side of the peep hole is arranged in mark pointer, is used to indicate the value of the angle index.
Further, a kind of drawing teaching aid further include:
Sliding slot, the length direction along first ruler open up；
Sliding block slides adjustable along the sliding slot；And
Connecting hole opens up on the slide block, and matches with the position of the sliding slot, for fixing drawing pen.
Further, a kind of drawing teaching aid further include:
Sliding rail is arranged on first ruler and is parallel to each other with the sliding slot, for cooperating the sliding block to slide；With
And
Positioning bolt is arranged on the slide block, for sliding block to be fixed on first ruler.
Further, it is provided with graduation mark along its length on first ruler and second ruler.
Further, the side of the graduation mark of the sliding block on first ruler is arranged in positioning pointer,
It is used to indicate the positional relationship of the sliding block Yu the sliding rail.
A kind of beneficial effect of drawing teaching aid provided by the utility model is: compared with prior art, the utility model
A kind of drawing teaching aid, the first ruler and the second ruler realize the tune of angle by the rotation of the first terminal pad and the second terminal pad
Section cooperates location hole using positioning component, the positioning of angle is realized, when drawing angle, it is not necessary to replace drawing teaching aid repeatedly, and grasp
Make simple.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram one of drawing teaching aid provided by the embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram two of drawing teaching aid provided by the embodiment of the utility model；
Fig. 3 is a kind of top view of first ruler of drawing teaching aid provided by the embodiment of the utility model；
Fig. 4 is a kind of top view of second ruler of drawing teaching aid provided by the embodiment of the utility model；
Fig. 5 is a kind of main view of first ruler of drawing teaching aid provided by the embodiment of the utility model；
Fig. 6 is a kind of main view of second ruler of drawing teaching aid provided by the embodiment of the utility model；
Fig. 7 be Fig. 1 along the sectional view of A-A；
Fig. 8 is cross-sectional view of the Fig. 1 along B-B；
Fig. 9 is the enlarged structure schematic diagram in Fig. 8 at D；
Figure 10 is the enlarged structure schematic diagram in Fig. 1 at C.
In figure: 1, the first ruler；2, the first terminal pad；3, the second ruler；4, the second terminal pad；5, location hole；6, it positions
Component；61, positioning chamber；62, positioning pin；63, snap-gauge；64, spring；65, anti-rotation seamed edge；7, angle index；8, peep hole；9, it marks
Pointer；10, sliding slot；11, sliding block；12, connecting hole；13, sliding rail；14, positioning bolt；15, graduation mark；16, positioning pointer.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
Now a kind of drawing teaching aid provided by the utility model is illustrated.Please refer to Fig. 1 to Figure 10, a kind of drawing religion
Tool, including the first ruler 1, the second ruler 3, location hole 5 and positioning component 6.
One end of first ruler 1 is equipped with integrally formed first terminal pad 2；One end of second ruler 3, which is equipped with, to be integrally formed
The second terminal pad 4, the second terminal pad 4 is located at the lower section of the first terminal pad 2, and connects with the first terminal pad 2 along central axis rotation
It connects；The quantity of location hole 5 be it is multiple, the upper surface of the second terminal pad 4 is uniformly distributed in along the center of circle of the second terminal pad 4；Positioning
Component 6 is adjustable to be arranged in the first terminal pad 2, for cooperating location hole 5 to limit turn of the first ruler 1 and the second ruler 3
Dynamic angle；Angle index 7 is uniformly distributed in the upper surface of the second terminal pad 4 along the center of circle of the second terminal pad 4；Peep hole 8, which runs through, to be set
It sets in the first terminal pad 2, for observing the variation of the angle index 7 when the first terminal pad 2 is rotated along the second terminal pad 4.
In the present embodiment, the first terminal pad 2 is shaped in one end of the first ruler 1, and the second terminal pad 4 is shaped in
One end of second ruler 3, the first terminal pad 2 and the second terminal pad 4 are identical two concentric discs of size, the first terminal pad 2
Positioned at the upper end of the second terminal pad 4, rotation axis runs through the first terminal pad 2 and the second terminal pad 4, and the first terminal pad 2 and second connects
Connecing disk 4 can rotate along rotation axis, and the thickness of the first ruler 1 is equal to the sum of the thickness of the first terminal pad 2 and the second terminal pad 4, the
The thickness of one terminal pad 2, the second terminal pad 4 and the second ruler 3 is equal, the first ruler 1 and the second ruler 3 it is of same size,
And it is equal to the radius size of the first terminal pad 2.When being not used, the first ruler 1 and the second ruler 3 are arranged side by side, the first terminal pad 2
It is rotated on the basis of the second terminal pad 4, so that the first ruler 1 and the second ruler 3 be driven to open and close, forms the first ruler 1 and second
Angle change between ruler 3.The quantity of location hole 5 totally ten three, be that center of circle semicircular in shape is evenly arranged on the with the second terminal pad 4
The lower half of the upper surface of two terminal pads 4, the line in the center of circle of the center of circle of two adjacent location holes 5 and the second terminal pad 4 it
Between angle be 15 °.Positioning component 6 can penetrate in any a positioning hole 5 and complete angle between the first ruler 1 and the second ruler 3
Positioning, while positioning component 6 can also be extracted out of any a positioning hole 5, at this point, angle between the first ruler 1 and the second ruler 3
Degree can be adjusted further, be 30 °, 45 °, 60 °, 90 ° etc. usually using the angle that arrives in field research, be 15 ° whole
Several times determine 15 ° of 5 spacing of the adjacent positioned hole use demands that conventional angle can be achieved, and pass through positioning component 6 and location hole 5
Cooperation, realizes the positioning of each angle, and angle index 7 is successively arranged along the center of circle of the second terminal pad 4 is in the arc-shaped, is distributed in the second company
Connect the top half of the end face of disk 4, from close to the one of the second ruler 3 be laterally away from 3 side of the second ruler successively indicate 0,15,
30,45,60,75 ... 180, interval numerical value 15 is for the angle change between showing.Peep hole 8, which runs through, is provided with the first connection
The upper surface of disk 2 is seen when first ruler 1 does not rotate relative to the second ruler 3 through peep hole 8 close to the side of the first ruler 1
To angle index 7 on size be 0, when 15 ° of the every rotation of the first ruler 1, positioning component 6 can be sequentially inserted into location hole 5, often
Complete primary positioning every 15 °, while can constantly observe rotational angle through peep hole 8, it is ensured that angle it is accurate.Drawing angle
When, drawing teaching aid need not be replaced repeatedly using the present apparatus, angle can be made to draw convenient.
A kind of drawing teaching aid provided by the utility model, compared with prior art, a kind of drawing teaching aid of the utility model, the
One ruler 1 and the second ruler 3 realize the adjusting of angle by the rotation of the first terminal pad 2 and the second terminal pad 4, utilize positioning group
Part 6 cooperates location hole 5, the positioning of angle is realized, when drawing angle, it is not necessary to replace drawing teaching aid repeatedly, and easy to operate.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10 is please referred to, positioning component 6 includes positioning chamber
61, positioning pin 62, snap-gauge 63 and spring 64.
Positioning chamber 61 is the stairstepping cavity that the diameter at both ends is less than the diameter at middle part, runs through the first terminal pad 2；Positioning pin
62 run through positioning chamber 61, and lower end is threaded through in location hole 5；Snap-gauge 63 is fixed on positioning pin 62, and is arranged in positioning chamber
In 61；Spring 64 is set on positioning pin 62, is pressed between the upper end of positioning chamber 61 and the upper surface of snap-gauge 63.
In the present embodiment, positioning chamber 61 is longitudinal to be provided in the first terminal pad 2, and is located remotely from the side of the first ruler 1,
Positioning chamber 61 includes central cavity and two end cavities, and two end cavities are located at the both ends of central cavity, and respectively
It is connected to the upper surface and lower end surface of the first terminal pad 2, positioning pin 62 is longitudinal to run through positioning chamber 61, and snap-gauge 63 is circular slab, and fixed
Position pin 62 is integrally formed, and diameter is greater than the diameter of two end cavities of positioning chamber 61, less than the diameter of central cavity, therefore,
Positioning pin 62 is fastened in positioning chamber 61 by snap-gauge 63, and spring 64 is set in the part that positioning pin 62 is located in positioning chamber 61,
Spring 64 is located at the upper end of snap-gauge 63, and spring 64 is pressed between positioning chamber 61 and the upper surface of snap-gauge 63, and spring 64 is in pressure
Tight state applies downward elastic force to snap-gauge 63 always, so that positioning pin 62 is pressed downward always, it is ensured that the lower end of positioning pin 62
It is threaded through in location hole 5 and completes positioning, the diameter on 62 top of positioning pin is greater than the diameter of positioning chamber 61, is fastened on positioning chamber 61
Outside, user can hold the position, extract positioning pin 62 out of location hole 5 by applying external force, release positioning.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10 is please referred to, positioning component 6 further includes anti-rotation
Seamed edge 65 and limited bayonet.
Anti-rotation seamed edge 65 is disposed longitudinally on the side of positioning chamber 61；Limited bayonet is provided with the side of snap-gauge 63, with anti-rotation
Seamed edge 65 is slidably matched.
In the present embodiment, anti-rotation seamed edge 65 is located on the inner wall of positioning chamber 61, longitudinally opens up, the cross section of anti-rotation seamed edge 65
To be trapezoidal, the side that limited bayonet is provided with snap-gauge 63 is adapted with the shape of anti-rotation seamed edge 65, and snap-gauge 63 passes through limited bayonet
It is fitted on anti-rotation seamed edge 65, is moved up and down along anti-rotation seamed edge 65, prevent snap-gauge 63 from rotating in positioning chamber 61, so that fixed
Position pin 62 will not rotate, and guarantee its stability.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10 is please referred to, the lower part of positioning pin 62 is inclination
End face, the bottom of location hole 5 are the inclined surface to match with the inclined end face of positioning pin 62.
In the present embodiment, the inclined end face of positioning pin 62 and the bottom angled face of location hole 5 are adapted, because of 62 meeting of positioning pin
It is rotated in company with the first terminal pad 2, needs to guarantee the inclination of inclined end face and inclined surface to 2 rotation direction of the first terminal pad
Tiltedly, positioning pin 62 gradually squeezes the inclined end face of its bottom by the inclined surface of location hole 5, makes its rebound, passes sequentially through multiple
Location hole 5, positioning pin 62 incline when turning in any location hole 5 in order to meet the inclined surface of bottom of multiple location holes 5
Rake angle is adapted in the tilt angle of the inclined end face of positioning pin 62, and the inclined surface of the bottom of location hole 5 should remain
It is perpendicular with the travel track of positioning pin 62.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10 is please referred to, a kind of drawing teaching aid further includes mark
Remember pointer 9.
The side of peep hole 8 is arranged in mark pointer 9, is used to indicate the value of angle index 7.
In the present embodiment, positioning pointer 16 is pasted in the side of peep hole 8, and tip is directed toward peep hole 8, utilizes mark pointer
9 tip indicates angle index 7, its accuracy can be made higher, avoid the occurrence of the problem of not reading.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10 is please referred to, a kind of drawing teaching aid further includes sliding
Slot 10, sliding block 11 and connecting hole 12.
Sliding slot 10 is opened up along the length direction of the first ruler 1；10 slidings are adjustable along the chute for sliding block 11；Connecting hole 12 is provided with
On sliding block 11, and match with the position of sliding slot 10, for fixing drawing pen.
In the present embodiment, sliding slot 10 is the strip slot for penetrating through the first ruler 1, and the length direction along the first ruler 1 opens up,
Connecting hole 12 is provided on sliding block 11, sliding block 11 along the chute 10 sliding when, be always ensured that connecting hole 12 be aligned sliding slot 10, be fixed on
Drawing pen in connecting hole 12 can be through in sliding slot 10 such as paintbrush or chalk from the top of connecting hole 12.It is needing to draw circle
When arc, the present apparatus is placed on blackboard or drawing board, the first ruler 1 passes through rotation relative to the second ruler 3, with the first terminal pad
2 and second terminal pad 4 rotation axis be origin, the pen tip of drawing pen downward through connecting hole 12, and pass through sliding slot 10 and blackboard
Or drawing board contact, the drafting of circular arc is completed, the radius for drawing circular arc is adjusted in 10 sliding along the chute of this outer slide 11.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10 is please referred to, a kind of drawing teaching aid further includes sliding
Rail 13 and positioning bolt 14.
Sliding rail 13 is arranged on the first ruler 1 and is parallel to each other with sliding slot 10, for cooperating sliding block 11 to slide；Positioning bolt
14 are arranged on sliding block 11, for sliding block 11 to be fixed on the first ruler 1.
In the present embodiment, sliding rail 13 and the first ruler 1 are integrally formed, and end face is rectangle, the lower part of sliding block 11 be arranged with
The slideway that sliding rail 13 cooperates, sliding block 11 are fitted on sliding rail 13 by slideway, can be slided along sliding rail 13, the bottom of slideway offers
Threaded hole, positioning bolt 14 are installed on sliding block 11 by threaded hole, are drawn needed for sliding block 11 is slid by sliding rail 13
When position, sliding block 11 is fixed on the first ruler 1 by screwed in place bolt 14, completes positioning, and radius is sent out when avoiding drawing circular arc
Changing.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10, the first ruler 1 and the second ruler 3 are please referred to
On be provided with graduation mark 15 along its length.
In the present embodiment, graduation mark 15 is located at side of first ruler 1 far from the second ruler 3, is arranged along its length；Scale
Line 15 is located at the second ruler 3 close to the side of the first ruler 1, is arranged along its length, by the label of graduation mark 15, utilizes ruler
Straight line is drawn, indicates the length of straight line.
As a kind of specific embodiment of the utility model, Fig. 1 to Figure 10 is please referred to, a kind of drawing teaching aid further includes fixed
Bit pointer 16.
The side of graduation mark 15 of the sliding block 11 on the first ruler 1 is arranged in positioning pointer 16, is used to indicate sliding block 11
With the positional relationship of sliding rail 13.
In the present embodiment, the cross section of positioning pointer 16 is triangular structure, and tip is directed toward the first ruler 1 and is marked with scale
The side of line 15, the other side welding of positioning pointer 16 or is shaped on sliding block 11, be used to indicate the sliding of sliding block 11 away from
From so that it is determined that the radius of circular arc.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (8)
1. a kind of drawing teaching aid characterized by comprising
First ruler, one end are equipped with integrally formed first terminal pad；
Second ruler, one end are equipped with integrally formed second terminal pad, and second terminal pad is located at first terminal pad
Lower section, and connect with first terminal pad along central axis rotation；
Location hole, quantity be it is multiple, the upper surface of second terminal pad is uniformly distributed in along the center of circle of second terminal pad；
Positioning component, it is adjustable to be arranged in first terminal pad, it is straight for cooperating the location hole to limit described first
The rotational angle of ruler and the second ruler；
Angle index is uniformly distributed in the upper surface of second terminal pad along the center of circle of second terminal pad；
Peep hole turns for observing first terminal pad along second terminal pad through being arranged in first terminal pad
The variation of angle index when dynamic；
Sliding slot, the length direction along first ruler open up；
Sliding block slides adjustable along the sliding slot；And
Connecting hole opens up on the slide block, and matches with the position of the sliding slot, for fixing drawing pen.
2. a kind of drawing teaching aid as described in claim 1, which is characterized in that the positioning component includes:
Positioning chamber is the stairstepping cavity that the diameter at both ends is less than the diameter at middle part, runs through first terminal pad；
Positioning pin runs through the positioning chamber, and lower end is threaded through the positioning hole；
Snap-gauge is fixed on the positioning pin, and is arranged in the positioning chamber；And
Spring is set on the positioning pin, is pressed between the upper end of the positioning chamber and the upper surface of the snap-gauge.
3. a kind of drawing teaching aid as claimed in claim 2, which is characterized in that the positioning component further include:
Anti-rotation seamed edge is disposed longitudinally on the side of the positioning chamber；And
Limited bayonet is provided with the side of the snap-gauge, is slidably matched with the anti-rotation seamed edge.
4. a kind of drawing teaching aid as claimed in claim 2, which is characterized in that the lower part of the positioning pin is inclined end face, institute
The bottom for stating location hole is the inclined surface to match with the inclined end face of the positioning pin.
5. a kind of drawing teaching aid as described in claim 1, which is characterized in that a kind of drawing teaching aid further include:
The side of the peep hole is arranged in mark pointer, is used to indicate the value of the angle index.
6. a kind of drawing teaching aid as described in claim 1, which is characterized in that a kind of drawing teaching aid further include:
Sliding rail is arranged on first ruler and is parallel to each other with the sliding slot, for cooperating the sliding block to slide；And
Positioning bolt is arranged on the slide block, for sliding block to be fixed on first ruler.
7. a kind of drawing teaching aid as claimed in claim 6, which is characterized in that on first ruler and second ruler
It is provided with graduation mark along its length.
8. a kind of drawing teaching aid as claimed in claim 7, which is characterized in that a kind of drawing teaching aid further include:
The side of the graduation mark of the sliding block on first ruler is arranged in positioning pointer, is used to indicate described
The positional relationship of sliding block and the sliding rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884926.1U CN209534569U (en) | 2018-11-15 | 2018-11-15 | A kind of drawing teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884926.1U CN209534569U (en) | 2018-11-15 | 2018-11-15 | A kind of drawing teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209534569U true CN209534569U (en) | 2019-10-25 |
Family
ID=68261970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821884926.1U Expired - Fee Related CN209534569U (en) | 2018-11-15 | 2018-11-15 | A kind of drawing teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209534569U (en) |
-
2018
- 2018-11-15 CN CN201821884926.1U patent/CN209534569U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 Termination date: 20211115 |