CN2060121U - Practical drawing unit - Google Patents
Practical drawing unit Download PDFInfo
- Publication number
- CN2060121U CN2060121U CN 89221270 CN89221270U CN2060121U CN 2060121 U CN2060121 U CN 2060121U CN 89221270 CN89221270 CN 89221270 CN 89221270 U CN89221270 U CN 89221270U CN 2060121 U CN2060121 U CN 2060121U
- Authority
- CN
- China
- Prior art keywords
- compasses
- set square
- scale
- engineer
- bolt
- 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.)
- Withdrawn
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a practical drawing unit, which is composed of a triangular rule, compasses and a dimension scale. The triangular rule is provided with an angle meter, a round angle bore and an erasing shield bore. The bottom surface of the triangular rule keeps smooth, and the middle part of the front surface of the triangular rule is provided with the compasses. A curve-shaped dimension scale is arranged on an edge position of the triangular rule by taking the connection point of the compasses and the triangular rule as the centre of curvature; the compasses rod having a needle point is fixed, and the other compasses rod can be moved or fixed. The practical drawing unit combines the compasses, the dimension scale, the angle meter, the erasing shield and the round angle bore into integration, and provides a multi functional practical drawing unit for extensive students.
Description
Practical drawing device belongs to the drawing instrument field.
At present, people's employed set square of drawing, protractor, compasses, engineer's scale, erasing shield have only one or two function mostly, and the multi-function drawing instrument that the someone designs also is the function of having only ruler, protractor, compasses mostly.
The purpose of this utility model is, designs a kind of collection set square, and protractor, compasses, engineer's scale, erasing shield, divider are the not only convenient, flexible but also multi-functional practical plotter of one.
Technical solution of the present utility model is, practical drawing device is by set square, and compasses and engineer's scale are formed, and have protractor on the set square, and the figure hole is wiped in the fillet hole.Two sidebands of set square have graduation mark, and it is smooth that the bottom surface keeps.Of the present utility model being characterised in that, compasses are by the middle part of Bolt Connection in the set square front, engineer's scale with multiple ratio is curved, it is with the center of bolt (10) center of curvature as it, be connected in that place, limit that does not have scale of set square, the end of the gauge bar that has prong of compasses is fixed by bolts on the angle of set square, and can install on the gauge bar of pencil or prong has a movable bolt, drives it and slides or fixing along the arc chute on the set square.
There is a fan-shaped local stiffener the above-mentioned compasses and the connection place of set square, have arc chute on it, and the bolt of fixed gauge boom end (7) has been located circular local stiffener.
Above-mentioned engineer's scale has 1:2 and two kinds of scale graduations of 1:5, does not become curved at the edge with the set square at the shaped form engineer's scale place of linking.
The design philosophy of technique scheme is to have protractor, the fillet hole, wipe compasses of the positive installation in set square middle part in figure hole, engineer's scale is made the bottom that shaped form is placed on compasses, and engineer's scale and compasses are used, and make compasses not only can make circle but also can work as divider and use.
Description of drawings
Accompanying drawing is the schematic diagram of practical drawing device
Be a most preferred embodiment of the present utility model below, provide details of the present utility model in conjunction with the accompanying drawings.
As shown in the figure, practical drawing device is by set square (13), and engineer's scale (2) and compasses are formed.Have protractor (8) on set square, fillet hole (9) wipe figure hole (12), and two sidebands of set square have scale, and the bottom surface of set square is smooth, can lie on the drawing.On the front of set square, (4) are fan-shaped local stiffeners, and (3) are arc chutes, and (5) are circular local stiffeners.Compasses bar (1) and compasses bar (6) are installed in the circle centre position of the fan-shaped local stiffener of set square with bolt (10).The end that has the compasses bar (6) of prong is located with the circular local stiffener (5) that bolt (7) is fixed on set square.Can pacify on the compasses bar (1) of pencil or prong has a movable bolt (11), and movable bolt (11) can slide along arc chute (3), also can be fixed on the optional position of arc chute (3), thereby drive that gauge bar (1) moves or fixing.Shaped form engineer's scale (2) is installed on the set square, and it is positioned at the camber line place of fan-shaped local stiffener (4).The fixing center of the bolt of compasses (10) center of curvature of shaped form engineer's scale just.Two kinds of scale graduations of 1:2 and 1:5 are arranged on the shaped form engineer's scale.In order to guarantee its convenient reading, make curved at edge with the set square at the shaped form engineer's scale place of linking.
Effect of the present utility model is collection compasses divider set square, protractor, and engineer's scale, erasing shield, the fillet hole is integrated, for numerous students provide multi-functional Practical drawing unit.
Claims (3)
1, practical drawing device belongs to drawing instrument, it is by set square, compasses and engineer's scale are formed, have protractor (8) on the set square, fillet hole (9), wipe figure hole (12), two sidebands of set square have graduation mark, it is smooth that the bottom surface keeps, of the present utility model being characterised in that, compasses are connected in the middle part in set square front by bolt (10), engineer's scale (2) with multiple ratio is curved, it is connected on that limit that does not have scale of set square with the center of bolt (10) center of curvature as it, and the end of the gauge bar that has prong (6) of compasses is fixed on the angle of set square with bolt (7), can install on the gauge bar (1) of pencil or prong has a movable bolt (11), drives gauge bar (1) and slides or fixing along the arc chute on the set square (3).
2, according to the described practical drawing device of claim 1, it is characterized in that there is a fan-shaped local stiffener (4) connection place of above-mentioned compasses and set square, have arc chute (3) on it; Fixedly the bolt (7) of gauge bar (6) end has been located circular local stiffener.
3, require 1 described practical drawing device according to patent, it is characterized in that above-mentioned engineer's scale has 1:2 and two kinds of scale graduations of 1:5, make curved at edge with the set square at the shaped form engineer's scale place of linking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89221270 CN2060121U (en) | 1989-12-15 | 1989-12-15 | Practical drawing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89221270 CN2060121U (en) | 1989-12-15 | 1989-12-15 | Practical drawing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2060121U true CN2060121U (en) | 1990-08-08 |
Family
ID=4875779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89221270 Withdrawn CN2060121U (en) | 1989-12-15 | 1989-12-15 | Practical drawing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2060121U (en) |
-
1989
- 1989-12-15 CN CN 89221270 patent/CN2060121U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |