CN209063770U - A kind of compasses - Google Patents
A kind of compasses Download PDFInfo
- Publication number
- CN209063770U CN209063770U CN201821157646.0U CN201821157646U CN209063770U CN 209063770 U CN209063770 U CN 209063770U CN 201821157646 U CN201821157646 U CN 201821157646U CN 209063770 U CN209063770 U CN 209063770U
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- CN
- China
- Prior art keywords
- support rod
- pen
- fixed
- slot
- dial disc
- 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.)
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Abstract
The utility model provides a kind of compasses, comprising: dial disc and support rod, dial disc are hollow cylinder, and support rod is equipped with graduation mark, and dial disc is circumferentially set there are also sliding rail, and the both ends of support rod are equipped with idler wheel, and idler wheel is stuck in sliding rail and rolls；The centre of support rod is installed with telescopic marker pen, and the picture pen that can be slided along the support rod is additionally provided on support rod, and picture pen is parallel with marker pen.The utility model provides a kind of compasses, it can be rotated around its center of circle and with graduated support rod by being set up on dial disc, and slidable picture pen and the scalable marker pen positioned at center are installed on support rod, so as to determine its central angle and radian value while reading drawn circle or arc radius, it is easy to operate without using special measuring tool；And scalable marker pen is used, traditional pin type center mark has been abandoned, the phenomenon that there are apertures on paper after drawing can be effectively avoided, map beautiful and safer.
Description
Technical field
The utility model relates to drawing tool fields, more particularly, to a kind of compasses.
Background technique
Compasses are a kind of common drawing tools, are had very important effect in application of imparting knowledge to students and chart.
Currently, ought compasses on the market be only able to display the radius of drawn circle or circular arc, circle can not be obtained in use
The radian of arc needs to measure by other tools again, cumbersome；Also, existing compasses when in use all can be
Aperture is left on drawing, influences the aesthetics of mapping, and will affect subsequent mapping.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of compasses, the radius and radian of drawn circular arc can be read simultaneously, and
And it can effectively avoid painting the phenomenon that there are apertures on paper after figure.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of compasses, comprising: dial disc and support rod, institute
Stating dial disc is hollow cylinder, and the dial disc is circumferentially equipped with angle line, and the support rod is equipped with graduation mark, described
Dial disc is circumferentially set there are also sliding rail, and the both ends of the support rod are equipped with idler wheel, and the idler wheel is stuck in the sliding rail and rolls
It is dynamic；The middle position of the support rod is installed with the telescopic marker pen of pen core, the axis of the marker pen and the dial disc
Line is overlapped, and the picture pen that can be slided along the support rod, the picture pen and the marker pen are additionally provided on the support rod
In parallel.
Preferably, from the middle position of the support rod, one end offers the first through slot thereto, by first through slot
Side open up the second through slot to the side of the support rod, be equipped with the first fixed pen cap in first through slot, described first
The side of the fixed pen cap is equipped with hollow sliding block, and the sliding block is fastened on the intersection of first through slot and the second through slot, institute
The side for stating the first fixed pen cap is equipped with the first lock-screw, and the picture pen is installed in the described first fixed pen cap and passes through
First lock screw is fixed.
Preferably, the middle position of the support rod is equipped with the second fixed pen cap, and the side of the described second fixed pen cap is set
There is the second lock-screw, the fixed pen cap of the marker pen insertion described second is simultaneously fixed by second lock screw.
Preferably, the sliding block is equipped with third lock-screw, and the described first fixed pen cap is sliding in first through slot
After moving preset graduation mark position, the described first fixed pen cap is fixed by the third lock-screw.
Preferably, the described first fixed pen cap top is additionally provided with tuning drive gear, and the tuning drive gear is perpendicular to described first
The fixed pen cap, the tuning drive gear contact with the upper surface of the support rod and are directed toward the graduation mark.
Preferably, the sliding rail is the groove body that bottom is wide, top is narrow, and the end of the idler wheel and the support rod passes through directly
Bar connection, the idler wheel are located at the bottom of the sliding rail, and the support rod is contacted with the upper surface of the dial disc.
Preferably, the bottom of the support rod offers storage box, and the storage box is located at not set on the support rod
One end of first through slot.
Preferably, the bottom surface of the dial disc is equipped with multiple card slots, is equipped in each card slot and suppresses element, the multiple
Card slot is fixed for placing set square and suppressing element described in.
(3) beneficial effect
The utility model provides a kind of compasses, can be rotated around its center of circle and with graduated by setting up on dial disc
Support rod, and slidable picture pen and the scalable marker pen positioned at center are installed on support rod, so as to
Its central angle and radian value are directly determined while reading drawn circle or arc radius, without using special measuring tool,
It is easy to operate；And scalable marker pen is used, traditional pin type label has been abandoned, can effectively avoid painting and be stayed on paper after figure
Foraminate phenomenon, mapping is beautiful and does not influence subsequent mapping, and safer, is not easy to hurt hand.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of structural schematic diagram of compasses of the utility model embodiment；
Fig. 2 is a kind of idler wheel of compasses of the utility model embodiment and the cooperation schematic diagram of sliding rail；
Fig. 3 is the partial enlarged view of I in Fig. 1；
Fig. 4 is the bottom view of Fig. 1；
Fig. 5 is the structural schematic diagram of the storage box of the support rod bottom of the utility model embodiment；
Fig. 6 is the partial enlarged view of T in Fig. 4；
Appended drawing reference:
1- dial disc；2- support rod；3- sliding rail；
4- idler wheel；5- straight-bar；6- second fixes the pen cap；
The second lock-screw of 7-；8- marker pen；9- picture pen；
The first through slot of 10-；The second through slot of 11-；12- first fixes the pen cap；
13- sliding block；The first lock-screw of 14-；15- third lock-screw；
16- tuning drive gear；17- storage box；18- card slot；
19- suppresses element.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
With reference to Fig. 1, the present embodiment provides a kind of compasses, comprising: dial disc 1 and support rod 2, dial disc 1 are hollow
Cylinder, dial disc 1 circumferentially be equipped with angle line, angle line from 0 to 360 spend, and the upper surface edge of dial disc 1 with
And side is designed with identical angle line, convenient for the central angle and radian value of circular arc after observation mapping, wherein radian value can be by justifying
It converts to obtain in heart angle；Support rod 2 is equipped with graduation mark along the axis direction of bar, and graduation mark is using the center of support rod 2 as scale
Zero point, graduation mark mark are located at the edge of support rod 2, and the graduation mark on support rod 2 is used to read the radius of drawn circle.Support rod 2
Both ends make tapered, the angle value on convenient reading dial disc 1.
With reference to Fig. 2, dial disc 1 is circumferentially set there are also sliding rail 3, and sliding rail 3 is that round and its diameter is slightly less than dial disc
Outer diameter, sliding rail 3 are the groove body that bottom is wide, top is narrow, and the both ends of support rod 1 are stuck in sliding rail 3, make support rod 1 on sliding rail 3
Rotation.Specifically, the both ends of support rod 1 are equipped with idler wheel 4, and idler wheel 4 is connect with support rod 1 by straight-bar 5, and idler wheel 4, which is located at, to be slided
The bottom of rail 3 is equivalent to the inside that idler wheel 4 is stuck in sliding rail 3, the compasses sound construction that designs in this way, stabilization, and when mapping is not easy to take off
Leave the right or normal track mark, and the height of straight-bar 5, which is just contacted with the upper surface of dial disc 1 with to meet support rod 2, to be advisable, and angle line is located at support
So that it is convenient to angle value when support rod 2 rotates on reading angular line on the outside of the end of bar 2, thus quickly know drawn circle or
The central angle and radian value of circular arc do not need additionally the measuring tools such as protractor to be used to measure, very convenient.
In order to realize the label in the center of circle, with reference to 1 and Fig. 3, it is equipped with the second fixed pen cap 6 in the middle position of support rod 2, by
It is overlapped in 2 axis of support rod with the diametrical direction of dial disc 1, the second fixed pen cap 6 is vertical with support rod 2 and and dial disc
1 is coaxial, and the side of the second fixed pen cap 6 is equipped with the second lock-screw 7.It is inserted into marker pen 8 in the second fixed pen cap 6, and is led to
It crosses the second lock screw to be fixed, when installation makes the pen container bottom of marker pen 8 and the lower surface of dial disc 1 be in same flat
Face.Marker pen 8 uses the telescopic marker pen of pen core, and the flexible of pen core can be realized by the pen cap at 8 top of pressing marker pen,
When needing to mark the center of circle, the pen core of marker pen 8 need to be only pressed, and pen core can retract in pen container after label.
The picture pen 9 that can be slided along support rod 2 is additionally provided on support rod 2, gel ink pen or hard can be used in picture pen 9
Pencil, picture pen 9 are arranged in parallel with marker pen 8.Adjust position of the picture pen 9 on support rod 2, rotary supporting rod 2, picture pen
9 can draw round or circular arc, and circle can be read by reading the distance between picture pen 9 and marker pen 8 by the scale on support rod 2
Or the radius of circular arc, while corresponding angle value is directly read by the graduation mark on dial disc 1, and then learn its radian
Value.
In the above-described embodiments, since the position of middle position, that is, marker pen 8 of support rod 2, to one of support rod 2
End offers the first through slot 10, opens up the second through slot 11, the first through slot from the side of the first through slot 10 to the side of support rod 2
The first fixed pen cap 12 is equipped in 10, the side of the first fixed pen cap 12 is equipped with hollow sliding block 13, and sliding block 13 is fastened on first
The side of the intersection of through slot 10 and the second through slot 11 and the Slideslip in the first through slot 11, the first fixed pen cap 12 is equipped with first
Lock-screw 14, the insertion of picture pen 9 first are fixed in the pen cap 12, are fixed picture pen by tightening the first lock-screw 14.Separately
Outside, for the ease of fixing the first fixed pen cap 12, it is equipped with third lock-screw 15 on sliding block 13, the first fixed pen cap 12 is the
After sliding into preset graduation mark position in one through slot 11, the first through slot 10 is fixed in by tightening third lock-screw 15
Inner side edge.
On the basis of the above embodiments, in order to more easily read the radius of drawn circle or circular arc, in the first fixed pen
The top of set 12 is equipped with tuning drive gear 16 by lateral location, and tuning drive gear 16 is perpendicular to the first fixed pen cap 12, tuning drive gear 16
The graduation mark for contacting and being directed toward on support rod 2 with the upper surface of support rod 2.
On the basis of the above embodiments, with reference to Fig. 4 and Fig. 5, in order to lay in the small stationery such as pen core and rubber, in support rod
2 bottom is equipped with a small storage box 17, and storage box includes storing chamber and the box cover for being buckled in storing exterior thereto, storing
Chamber is embedded in support rod 2, and storage box 17 is located at one end that the first through slot 10 is not provided on support rod 2, i.e. storage box 17
The two sides of the second fixed pen cap 6 and marker pen 8 are located at the first through slot 10.
On the basis of the above embodiments, with reference to Fig. 4 and Fig. 6, set square is placed for convenience, at the bottom of dial disc 1
Face is equipped with multiple card slots 18, is equipped in each card slot and suppresses element 19, suppresses and be equipped with spring in element 19.The present embodiment card slot
Number is 6, for placing two set squares, respectively 30 degree and 45 degree of set squares.Wherein, every 3 card slots 18 are one group, card slot
18 position according to the position distribution at each ruler angle of 30 degree and 45 degree set squares in the bottom surface of dial disc 1,30 degree and 45 degree three
Angle square is placed in corresponding card slot 18, and is withstood in card slot 18 by suppressing element 19.
When in use, element 19 is suppressed with hand pressing first, takes out two set squares from corresponding card slot 18 respectively.
Picture pen 9 is inserted into the first fixed pen cap 12 and is fixed by tightening the first lock screw, picture pen 9 and first is slided and consolidates
Determine the pen cap 12, when tuning drive gear 16 reaches the pre-set radius position of the circle or circular arc to be drawn, tightens third lock-screw 15.
Marker pen 8 is pressed lightly on, marker pen 8 is made to leave an origin, easy-to-look-up center location on paper.Manual toggle support rod
2, idler wheel 4 slides in the sliding rail 3 on dial disc 1, and picture pen 9 just draws a circle or one section of circular arc on paper.Certainly, such as
Fruit needs replacing pen core or using erasing rubber, then by compasses turn-over, opens the box cover of storage box 17, take out in storage box 17
Required article can buckle box cover after use, overturn compasses, continue to draw.After picture, it can be taken off marker pen 8 and draw
Figure pen 9, and set square is put back into corresponding card slot 18 and is pressed and suppresses element 19 and is fixed.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of compasses characterized by comprising dial disc and support rod, the dial disc are hollow cylinder, the quarter
Degree disk is circumferentially equipped with angle line, and the support rod is equipped with graduation mark, and the dial disc circumferentially sets also sliding rail, institute
The both ends for stating support rod are equipped with idler wheel, and the idler wheel is stuck in the sliding rail and rolls；It installs in the middle position of the support rod
There is the telescopic marker pen of pen core, the marker pen is overlapped with the axis of the dial disc, is additionally provided with energy on the support rod
Enough picture pens slided along the support rod, the picture pen are parallel with the marker pen.
2. compasses according to claim 1, which is characterized in that from the middle position of the support rod, one end is opened up thereto
There is the first through slot, the second through slot is opened up from the side of first through slot to the side of the support rod, in first through slot
Equipped with the first fixed pen cap, the side of the described first fixed pen cap is equipped with hollow sliding block, and the sliding block is fastened on described first
The intersection of through slot and the second through slot, the side of the described first fixed pen cap are equipped with the first lock-screw, the picture pen installing
It is fixed in the described first fixed pen cap and through first lock-screw.
3. compasses according to claim 2, which is characterized in that the middle position of the support rod is equipped with the second fixed pen
Set, the side of the described second fixed pen cap are equipped with the second lock-screw, and the fixed pen cap of the marker pen insertion described second simultaneously leads to
Second lock-screw is crossed to fix.
4. compasses according to claim 3, which is characterized in that the sliding block be equipped with third lock-screw, described first
After the fixed pen cap slides into preset graduation mark position in first through slot, by the third lock-screw by described the
The one fixed pen cap is fixed.
5. compasses according to claim 3, which is characterized in that the described first fixed pen cap top is additionally provided with tuning drive gear,
The tuning drive gear is contacted and is directed toward with the upper surface of the support rod perpendicular to the described first fixed pen cap, the tuning drive gear
The graduation mark.
6. compasses according to claim 1 or 2, which is characterized in that the sliding rail is the groove body that bottom is wide, top is narrow, institute
Idler wheel is stated to connect with the end of the support rod by straight-bar, the idler wheel is located at the bottom of the sliding rail, the support rod with
The upper surface of the dial disc contacts.
7. compasses according to claim 2, which is characterized in that the bottom of the support rod offers storage box, the storage
Object box is located at one end of not set first through slot on the support rod.
8. compasses according to claim 1 or 2, which is characterized in that the bottom surface of the dial disc is equipped with multiple card slots, often
It is equipped in a card slot and suppresses element, the multiple card slot is fixed for placing set square and suppressing element described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157646.0U CN209063770U (en) | 2018-07-20 | 2018-07-20 | A kind of compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157646.0U CN209063770U (en) | 2018-07-20 | 2018-07-20 | A kind of compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209063770U true CN209063770U (en) | 2019-07-05 |
Family
ID=67089554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821157646.0U Expired - Fee Related CN209063770U (en) | 2018-07-20 | 2018-07-20 | A kind of compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209063770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656804A (en) * | 2018-07-20 | 2018-10-16 | 武汉科技大学 | A kind of compasses |
-
2018
- 2018-07-20 CN CN201821157646.0U patent/CN209063770U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656804A (en) * | 2018-07-20 | 2018-10-16 | 武汉科技大学 | A kind of compasses |
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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: 20190705 Termination date: 20200720 |