CN205997588U - A kind of multifunctional compass - Google Patents
A kind of multifunctional compass Download PDFInfo
- Publication number
- CN205997588U CN205997588U CN201620362933.XU CN201620362933U CN205997588U CN 205997588 U CN205997588 U CN 205997588U CN 201620362933 U CN201620362933 U CN 201620362933U CN 205997588 U CN205997588 U CN 205997588U
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- CN
- China
- Prior art keywords
- compass
- shaft
- axle
- compass shaft
- support
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A kind of multifunctional compass, including the first compass shaft, the second compass shaft, support, first axle, angle dial, length scale chi, second axle, little handle, the 3rd axle, slipmat, rotary shaft chalk clamp, the fixing axle center of circle, the 3rd compass shaft, the 4th compass shaft.Wherein first compass shaft and the 3rd compass shaft pass through first axle and connect, and the other end of the 3rd compass shaft is provided with the fixing axle center of circle, the 3rd compass shaft is provided with support, and support is provided with angle dial and pointer, and the bottom of support is provided with slipmat.Second compass shaft and the 4th compass shaft pass through the 3rd axle and connect, and the other end of the 4th compass shaft is fixed with rotary shaft chalk clamp, and the first compass shaft and the second compass shaft pass through second axle and connect, and silk axle two ends are additionally provided with little handle.The multifunctional compass ingenious, scientific in principle of design, easily operated, can be widely used for class demonstration teaching, improve accuracy, the standardization of mapping.
Description
Technical field
This utility model is related to educational aid field, more particularly, to a kind of multifunctional compass.
Background technology
It is impossible to accurately draw very much the angle of circular arc in the compasses that existing blackboard uses, and in use, when
When the radius ratio of the circle needing is larger, common compasses do not enable 180 degree and draw circle so that drawing circle have certain restriction.General
Compasses fixing axle and blackboard contact point very little, are so easily destroyed blackboard, but during drawing circle, this contact point is also easy to
Mobile, so lead to complete ensuing part.During drawing radian, compasses need to coordinate protractor and rule
To complete Deng instrument, to operate also cumbersome, to deposit also inconvenient, therefore, for the problems referred to above we to be badly in need of one kind many
The compasses of function.
Utility model content
Technical problem to be solved in the utility model is can accurately draw the arc length of certain number of degrees and surveys a certain
Angle and the compasses of the length of straight line drawn by measurement.
This utility model employs the following technical solutions and solves above-mentioned technical problem：
A kind of multifunctional compass, including the first compass shaft, the second compass shaft, support, first axle, second axle, the 3rd
Silk axle, rotary shaft chalk clamp, the fixing axle center of circle, the 3rd compass shaft, the 4th compass shaft, the first described compass shaft and the 3rd circle
Rule axle passes through first axle and connects, and the other end of the 3rd compass shaft is provided with the fixing axle center of circle, and the 3rd compass shaft passes through bearing
It is connected with support, the bottom of support is provided with slipmat；Second compass shaft and the 4th compass shaft pass through the 3rd axle and connect, and the 4th
The other end of compass shaft is fixed with rotary shaft chalk clamp, and the first compass shaft and the second compass shaft pass through second axle and connect.
Further, the first described compass shaft and the second compass shaft can be straight at one after the rotation of second axle
On line.
Further, the bottom of described support is provided with slipmat.
Further, described support is the penetrating structure of surrounding.
Further, length scale chi, the first compass shaft are provided with the first described compass shaft and the second compass shaft
Numeral with the rule on the second compass shaft is continuous.
Further, described support is provided with angle dial and pointer.
Further, second described axle two ends are respectively arranged with little handle.
Further, the first compass shaft and the second compass shaft are realized respectively and the 3rd compass shaft and the 4th compass shaft between
Two compasses supporting legs inwardly≤90 degree turn back.
The utility model has the advantage of：
(1) compasses of the present utility model can accurately draw certain number of degrees arc length and survey a certain angle the number of degrees and and
The length of straight line drawn by measurement.
(2) compasses of the present utility model use support and slipmat, increase supporting surface, increased frictional force, make supporting leg
More stablize in use and be difficult landing.Simultaneously frame bottom and surrounding penetrating it is easy to determine the center of circle position.
(3) compasses of the present utility model use the connected mode of first axle and the 3rd axle, when the first compass shaft and the
Three compass shafts are vertical and the second compass shaft is vertical with the 4th compass shaft, and the first compass shaft and the second compass shaft straight in same
On line, and the two ends of second axle are provided with little handle, now can greatly draw round radius, little handle is also convenient for
Draw circle.
(4) this utility model possesses the basic function of common compasses, protractor and rule, decreases the number of educational aid
Amount, facilitates management, carries and be also convenient for.
Brief description
Fig. 1 is axonometric chart of the present utility model；
Fig. 2 is this utility model support axonometric chart；
Fig. 3 is this utility model first compass shaft and the second compass shaft schematic diagram in same level.
Wherein：1st, the first compass shaft；2nd, the second compass shaft；3rd, support；4th, first axle；5th, angle dial；6th, length
Rule；7th, second axle；8th, little handle；9th, the 3rd axle；10th, slipmat；11st, rotary shaft chalk clamp；12nd, fixing axle circle
The heart；13rd, the 3rd compass shaft；14th, the 4th compass shaft.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in detail.
As Figure 1-3, a kind of multifunctional compass, including the first compass shaft 1, the second compass shaft 2,3, first axle of support
4th, angle dial 5,6, second axle 7 of length scale chi, little handle 8, the 3rd axle 9, slipmat 10, rotary shaft chalk clamp
11st, the fixing axle center of circle 12, the 3rd compass shaft 13, the 4th compass shaft 14.Wherein first compass shaft 1 and the 3rd compass shaft 13 pass through the
A thread axle 4 connects, and the other end of the 3rd compass shaft 13 is provided with the fixing axle center of circle 12, and the 3rd compass shaft 13 is installed by bearing
There is support 3, support 3 can rotate with respect to the 3rd compass shaft 13, and angle dial 5 is provided with support 3, pointer and
Three compass shafts 13 connect, and when the 3rd compass shaft 13 is with respect to support 3 rotation on fixing blackboard, pointer is in angle dial 5
Upper rotation.So can intuitively find out the angle of drawn circular arc.The bottom of support 3 is provided with slipmat 10.Can prevent
Support 3 rotates relative to blackboard.Second compass shaft 2 and the 4th compass shaft 14 are connected by the 3rd axle 9, the 4th compass shaft 14 another
One end is fixed with rotary shaft chalk clamp 11, and the first compass shaft 1 and the second compass shaft 2 are connected by second axle 7, the first compasses
Can in the same horizontal line after axle 1 and the second compass shaft 2 rotation, the scale value on the first compass shaft 1 and the second compass shaft 2 is
Continuously, now the first compass shaft 1 and the second compass shaft 2 can combine formation length scale chi 6.And silk axle two ends also set up
There are little handle 8, the use that so can draw with Convenient compasses.
Wherein, the first compass shaft 1 and the second compass shaft 2 are realized respectively and the 3rd compass shaft 13 and the 4th compass shaft 14 between
Angle value less than or equal to 90 degree.This set-up mode can facilitate picture to justify.And first axle 4 and the 3rd axle 9 can be adjusted
Section tightness.When the first compass shaft 1 and the second compass shaft 2 in the same horizontal line, and respectively with the 3rd compass shaft 13 and
When the angle that four compass shaft 14 is formed is 90 degree, considerably increase picture radius of circle realizes scope.
Using method is as follows：
1st, compasses are vertically disposed in and accordingly make on plan, adjust the spacing of compass shaft according to mapped size.
2nd, turnover degree between compass shaft can suitably be adjusted according to the size of drawn figure, extend mapping radius to reach
Purpose.
3rd, make on plan by being attached at paintbrush, hand-held first compass shaft 1 and the second compass shaft 2 are carried out with the fixing axle center of circle
12 is the directional-rotation of fixed point.
4th, draw arc, draw bowlder, by the radius of arc, circle drawn by the adjustment of silk axle construction, and make to protect equipped with support 3 and graduated disc
It is held in blackboard surface parastate to maintain static, and so that the second compass shaft 2 and the 4th compass shaft 14 is rotated, drive and pointer is installed
The first compass shaft 1 and the 3rd compass shaft 13 rotation, the angle being turned on angle dial 5 by pointer can read institute
Draw the number of degrees of arc.The sector of the specified number of degrees or the circle of specified radius equally can also be drawn.
The foregoing is only the preferred embodiment of this utility model creation, not in order to limit this utility model wound
Make, any modification, equivalent and improvement made within all spirit in this utility model creation and principle etc., all should comprise
Within the protection domain that this utility model is created.
Claims (8)
1. a kind of multifunctional compass, including the first compass shaft, the second compass shaft, support, first axle, second axle, the 3rd
Axle, rotary shaft chalk clamp, the fixing axle center of circle, the 3rd compass shaft, the 4th compass shaft it is characterised in that：The first described compasses
Axle and the 3rd compass shaft pass through first axle and connect, and the other end of the 3rd compass shaft is provided with the fixing axle center of circle, the 3rd compass shaft
Above it is connected with support by bearing, the bottom of support is provided with slipmat；Second compass shaft and the 4th compass shaft pass through the 3rd
Axle connects, and the other end of the 4th compass shaft is fixed with rotary shaft chalk clamp, and the first compass shaft and the second compass shaft pass through second
Silk axle connects.
2. a kind of multifunctional compass according to claim 1 it is characterised in that：The first described compass shaft and the second compasses
Axle can after the rotation of second axle point-blank.
3. a kind of multifunctional compass according to claim 1 it is characterised in that：The bottom of described support is provided with anti-skidding
Pad.
4. a kind of multifunctional compass according to claim 1 it is characterised in that：Described support is the penetrating knot of surrounding
Structure.
5. a kind of multifunctional compass according to claim 1 it is characterised in that：In the first described compass shaft and the second circle
It is provided with length scale chi, the numeral of the rule on the first compass shaft and the second compass shaft is continuous on rule axle.
6. a kind of multifunctional compass according to claim 1 it is characterised in that：It is provided with angle index on described support
Disk and pointer.
7. a kind of multifunctional compass according to claim 1 it is characterised in that：Second described axle two ends are respectively provided with
There is little handle.
8. a kind of multifunctional compass according to claim 1 it is characterised in that：First compass shaft and the second compass shaft are respectively
Realize and the 3rd compass shaft and the 4th compass shaft between two compasses supporting legs inwardly≤90 degree turn back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362933.XU CN205997588U (en) | 2016-04-21 | 2016-04-21 | A kind of multifunctional compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362933.XU CN205997588U (en) | 2016-04-21 | 2016-04-21 | A kind of multifunctional compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205997588U true CN205997588U (en) | 2017-03-08 |
Family
ID=58204991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620362933.XU Expired - Fee Related CN205997588U (en) | 2016-04-21 | 2016-04-21 | A kind of multifunctional compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205997588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110341353A (en) * | 2019-07-30 | 2019-10-18 | 张丽云 | A kind of Geography drawing rule |
-
2016
- 2016-04-21 CN CN201620362933.XU patent/CN205997588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110341353A (en) * | 2019-07-30 | 2019-10-18 | 张丽云 | A kind of Geography drawing rule |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170308 Termination date: 20190421 |