CN2540287Y - Multifunctional equivalent measuring instrument - Google Patents
Multifunctional equivalent measuring instrument Download PDFInfo
- Publication number
- CN2540287Y CN2540287Y CN 02229306 CN02229306U CN2540287Y CN 2540287 Y CN2540287 Y CN 2540287Y CN 02229306 CN02229306 CN 02229306 CN 02229306 U CN02229306 U CN 02229306U CN 2540287 Y CN2540287 Y CN 2540287Y
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- China
- Prior art keywords
- scale
- adjustable rule
- fixed ruler
- equal portions
- chi
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- Expired - Fee Related
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Abstract
A multifunctional equal angle gage is mainly composed of a fixed scale, a movable scale, and a graduated scale, wherein the movable scale and the fixed scale are connected via a fixed needle at top, the graduated scale is composed of a main scale and an auxiliary scale, respectively connected with the fixed scale via movable hinges. The utility model can combine the functions of scale, compass and angle gage, which can divide circle equally in short time, draw regular polygon and draw concentric circle, with direct and simple operation, improved working efficiency and high accuracy.
Description
(1) technical field: the utility model belongs to draw measures apparatus, is specifically related to a kind of multi-functional equal portions measuring appliance that is widely used in every field such as five metals processing, machinery production, drawing measurement, building, teaching.
(2) background technology: apparatus is measured at present commercially available drawing, mainly is the combination of chi, compasses, protractor or chi and protractor, various fixedly figures; And aspect industry, building, teaching, often relate to circle, arc, part equal portions, take measurement of an angle, do regular polygon, do concentric circles or the like operation, at this moment, must possess instruments such as chi, compasses, protractor simultaneously, operating process is loaded down with trivial details, and it is time-consuming again to require great effort.
The purpose of this utility model is exactly to propose a kind of multi-functional equal portions measuring appliance that integrates compasses, ruler, protractor, equal portions device dividing head at the problems referred to above.
(3) summary of the invention: multi-functional equal portions measuring appliance of the present utility model comprises fixed ruler, adjustable rule and graduated scale, and described adjustable rule and fixed ruler connection are equipped with the summit and are decided pin; Described graduated scale is made of main scale and auxilliary chi, and wherein main scale is hinged on the fixed ruler, and auxilliary chi is hinged on the adjustable rule, and inner edges overlaps with the main scale outer ledge just, and can slide along the main scale edge with adjustable rule.
Thick fine setting fixture also is housed between above-mentioned adjustable rule and the fixed ruler, and this device constitutes by being installed in the arc chute on the adjustable rule, the fixture on the chute and the regulating rod that is connected on the fixed ruler.
Also being equipped with respectively on described adjustable rule and the fixed ruler can be along the vernier scale of blade slip, and this vernier scale bottom is equipped with taper pilot pin and drawing pen nib simultaneously, not collapsible closing up of time spent.
In addition, the short chi that horizontal direction is rotated around adjustable rule is housed also on the adjustable rule, this weak point chi can be pulled down; Be equipped with on the short chi blade and can decide pin along the slip that the blade chute slides.
For easy to operate, the mark on the described graduated scale can adopt different colours, to represent the scale of several different meanings.
But the main scale semicircular in shape or the circle of above-mentioned graduated scale, be marked with the angle number of 0-180 ° or 0-360 ° above respectively, the limit number that waits umber and regular polygon of circle, auxilliary chi is arc or circle, and it mainly acts on is to improve the accuracy of measuring, as the main scale semicircular in shape, when the angle number of its mark is 0-180 °, the then corresponding auxilliary chi that is divided into 60 equal portions with 59 ° of making, at this moment, the angle number can be accurate to 1 '; Rounded as main scale, when the angle number of its mark is 0-360 °, then correspondingly will make the auxilliary chi that is divided into 360 parts with 359 °, this moment, the angle number can be accurate to 1 ", can be used for making the dividing head of gear.
Why the utility model can directly be marked at the limit number of justifying that waits umber and regular polygon on the main scale, mainly be to derive according to the relevant circle of elementary geometry, angle of circumference, Zhou Xinjiao, polygonal definition, theorem, character, its computational process and result are as shown in the table:
Table 1 equal portions arc length to angle of circumference (β) and etc. the relation between the umber (n 〉=3)
| Deng umber (n 〉=3) | 3 | 4 | 5 | 6 | 7 | 8 | …… |
| Circumference (c) | c | c | c | c | c | c | …… |
| Equal portions arc length (L) | c/3 | c/4 | c/5 | c/6 | c/7 | c/8 | …… |
| Equal portions arc length institute to central angle (α °=360 °/n) | 120° | 90° | 72° | 60° | 360°/7 | 45° | …… |
| Equal portions arc length institute to angle of circumference (β °=360 °/2n) | 60° | 45° | 36° | 30° | 360°/14 | 22.5° | …… |
Relation between the interior angle (θ) of table 2 regular polygon limit number (m) and regular polygon
| Regular polygon limit number (m 〉=3) | 3 | 4 | 5 | 6 | 8 | 9 | …… |
| The interior angle of regular polygon (θ) θ=180/n (n-2) | 60° | 90° | 108° | 120° | 135° | 140° | …… |
The utility model comparatively complex mathematical relation is converted into digital simply and intuitively marking one by one on the main scale of graduated scale, thereby makes operation more easy, has really realized a chi multipotency, has improved the accuracy of operating efficiency and operation greatly.
Introduce using method of the present utility model below in detail.
One, will justify any equal portions (waiting umber n 〉=3)
(1) main scale of graduated scale is dug on the chi face that is flat on fixed ruler; Its edge just with adjustable rule on assist chi inner side edge close up;
(2) summit being decided pin places on the circumference for the treatment of equal portions;
(3) rotary moveable chi slowly, when on the inside edge of adjustable rule and the main scale wait umber n to overlap the time, the arc length between the screwed in place screw, this moment adjustable rule and fixed ruler is desires the 1/n arc length that equal portions are justified;
(4) intercept the 1/n arc length respectively, can finish equal portions operation circle.
For example, desire is with certain circle 6 equal portions, after carrying out above-mentioned (1), (2) operation, rotary moveable chi slowly, when on the inside edge of adjustable rule and the main scale wait umber 6 to overlap the time, angle between the screwed in place screw, this moment adjustable rule and fixed ruler must be for corresponding 30, and its pairing arc length is 1/6 arc length of certain circle.°
Two, measuring angle
(1) same (1) step;
(2) summit is decided the summit that pin places angle to be measured, the fixed ruler inside edge is overlapped with one side of angle to be measured, rotary moveable chi slowly, when treating that its inside edge overlaps with the another side for the treatment of angle measurement, corresponding angle promptly is the number of degrees of angle to be measured on the main scale, the reading on the auxilliary chi can be accurate to 1 ' or 1 ".
Three, make regular polygon
1. do in the circle just polygon (m 〉=3 are counted on the limit)
Earlier one will justify some equal portions as stated above, and directly make regular polygon again and get final product.
2. make the regular polygon (m 〉=3 are counted on the limit) of any length of side
A. same (1) operation;
B. the summit is decided pin and be fixed on a certain position;
C. rotary moveable chi slowly when the digital calibration line of expression regular polygon limit number on its inside edge and the graduated scale overlaps, is noted the angle theta between adjustable rule and the fixed ruler, and at this moment, this angle is the interior angle of the regular polygon of desire work;
D. select the length of side L of regular polygon on request;
E. make other angle, limit respectively continuously with angle theta, length of side L, the regular polygon that can obtain requiring.
For example, desire is made a regular pentagon, after carrying out two operations of above-mentioned a, b, and rotary moveable chi slowly, when the numeral 5 of expression regular polygon limit number on its inside edge and the graduated scale overlapped, the angle between adjustable rule and the fixed ruler was 108 ° at this moment; The screwed in place screw, fixing, be 15mm if require the length of side, then directly can make the length of side on adjustable rule and fixed ruler is 15mm, angle is two limits and angle of 108 ° regular pentagon, does angle, limit successively, can make regular pentagon.
Other usages of the present utility model:
One, once makes two concentric circles
1. the summit is decided pin and be fixed in a certain position;
2. radius is on request adjusted vernier scale on adjustable rule and the fixed ruler respectively, installs drawing pen nib;
3. deciding pin with the summit is the center of circle, is radius with adjustable rule and fixed ruler to the distance between the drawing pen nib respectively, once makes two concentric circles.
Two, making circle (how in ring flange boring, using) on the workpiece in the no center of circle
1. the summit is decided pin and be connected adjustable rule and decide the maximum gauge place that pin is placed on workpiece respectively, be adjusted to the position of easy operating deciding vertical range between pin and the workpiece with the slip of short chi;
2. find out the two central point O that decide between the pin according to the scale on the adjustable rule;
3. pull out the short chi on the adjustable rule, determine required radius R, pin is decided in the slip on the short chi be fixed on required scale place;
4. being the center of circle with above-mentioned central point O, is radius with R, makes circle promptly.
(4) description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the side surface direction structural representation of adjustable rule in the utility model;
(5) specific embodiment: referring to Fig. 1, Fig. 2,1 for deciding pin in the summit, and this summit is decided pin and can be pulled down its height-adjustable; Be marked with the scale of conventional ruler on the chi face of fixed ruler 2 and adjustable rule 3, in the present embodiment, the two junction is promptly installed above-mentioned summit and is decided pin; Wherein, adjustable rule can be decided the pin rotation around the summit.The main scale 4 of graduated scale is semicircle, and it links to each other with moveable hinge 5 with the fixed ruler outward flange, so graduated scale both can be vertical with fixed ruler, and again can be overlapping with its horizontal direction; The auxilliary chi 6 of graduated scale is arcuation, and it also is connected on the adjustable rule with moveable hinge, and inner edges overlaps with the outward flange of main scale semicircle, and auxilliary chi can slide along the main scale excircle with adjustable rule just; In the present embodiment, be marked with the sign of three kinds of different colours on the main scale of graduated scale, wherein, white---angle number (α °=0-180 °), black---redness such as umber (n) such as grade of justifying---the limit number (m) of regular polygon, auxilliary chi then is divided into 60 equal portions markings on it with 59 ° on the main scale, can make the angle number be accurate to 1 ', all being equipped with on fixed ruler and the adjustable rule can be along the vernier scale 7 of blade slip, vernier scale can be accurate to 0.01mm in the utility model, this vernier scale possesses taper pilot pin and drawing pen nib simultaneously, at ordinary times collapsible closing up of time spent not; In addition, also being equipped with on the adjustable rule can be around the short chi 8 of its rotation, and this weak point chi can be amounted to together with adjustable rule at ordinary times, is equipped with on the short chi and can decides pin 9 along the slip that the blade chute slides; Be the degree of accuracy and the accuracy that guarantees to measure, thick fine setting fixture also is housed on adjustable rule and fixed ruler, this device is by the arc chute 10 that is installed on the adjustable rule, fixture 11 on the chute and the regulating rod 12 that is connected on the fixed ruler constitute, in the present embodiment, fixture adopts the geometrical clamp of screw and connecting screw and regulating rod to constitute; Decide pin when rotation around the summit when adjustable rule, unclamp screw, chute moves with adjustable rule, when moving to desired location, slowly tightens above-mentioned screw, and is equipped with regulating rod adjusted and gets final product.
When this multi-functional equal portions measuring appliance was used for generally charting, it is long that adjustable rule and fixed ruler can be made into 20-25cm, when being used for industrial processes or making, generally requires length to be not less than 70cm.During making, the diameter that requires the overlapping back of adjustable rule and fixed ruler and main scale point-blank, its summit is decided pin and is overlapped with the center of circle of main scale.The precision of above-mentioned auxilliary chi and vernier scale can be made as required.
Claims (5)
1. multi-functional equal portions measuring appliance is characterized in that: mainly be made of fixed ruler [2], adjustable rule [3] and graduated scale; Described adjustable rule and fixed ruler connection are equipped with the summit and are decided pin [1], and thick fine setting fixture is housed between adjustable rule and the fixed ruler, and described graduated scale is made of main scale [4] and auxilliary chi [6], and is hinged on respectively on fixed ruler and the adjustable rule.
2. multi-functional equal portions measuring appliance according to claim 1 is characterized in that: described thick fine setting fixture constitutes by being installed in the arc chute [10] on the adjustable rule, the fixture [11] on the chute and the regulating rod [12] that is connected on the fixed ruler.
3. multi-functional equal portions measuring appliance according to claim 1 is characterized in that: vernier scale [7] also is housed respectively on described adjustable rule and the fixed ruler, and the vernier scale bottom is equipped with taper pilot pin and drawing pen nib simultaneously.
4. multi-functional equal portions measuring appliance according to claim 1 is characterized in that: the short chi [8] that pin [9] is decided in the band slip also is housed on the described adjustable rule.
5. multi-functional equal portions measuring appliance according to claim 1 is characterized in that: on the described graduated scale respectively with white, black, red three kinds of color showing angle numbers, etc. the limit number of umber and regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229306 CN2540287Y (en) | 2002-05-01 | 2002-05-01 | Multifunctional equivalent measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229306 CN2540287Y (en) | 2002-05-01 | 2002-05-01 | Multifunctional equivalent measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2540287Y true CN2540287Y (en) | 2003-03-19 |
Family
ID=33705643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02229306 Expired - Fee Related CN2540287Y (en) | 2002-05-01 | 2002-05-01 | Multifunctional equivalent measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2540287Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632749A (en) * | 2012-04-07 | 2012-08-15 | 福建农林大学 | Multifunctional combined drawing instrument |
| CN102774186A (en) * | 2011-05-07 | 2012-11-14 | 秦青武 | Dotted line type protractor |
| CN105584262A (en) * | 2014-10-24 | 2016-05-18 | 石才 | Multi-functional mathematics plotting tool |
| CN110001246A (en) * | 2019-02-19 | 2019-07-12 | 萧淑芬 | Triangular compass and use triangular compass drafting triangle and circular method |
-
2002
- 2002-05-01 CN CN 02229306 patent/CN2540287Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774186A (en) * | 2011-05-07 | 2012-11-14 | 秦青武 | Dotted line type protractor |
| CN102632749A (en) * | 2012-04-07 | 2012-08-15 | 福建农林大学 | Multifunctional combined drawing instrument |
| CN105584262A (en) * | 2014-10-24 | 2016-05-18 | 石才 | Multi-functional mathematics plotting tool |
| CN110001246A (en) * | 2019-02-19 | 2019-07-12 | 萧淑芬 | Triangular compass and use triangular compass drafting triangle and circular method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |