CN101474930A

CN101474930A - Multifunctional plotter

Info

Publication number: CN101474930A
Application number: CNA2009101138431A
Authority: CN
Inventors: 赵志强
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-22
Filing date: 2009-01-22
Publication date: 2009-07-08

Abstract

The invention discloses a multi-functional plotter. A circle center needle and a pen core are arranged on the bottoms of two measuring rulers of a digital display angle rule, so the plotter has the function of drawing circles; a calculator is arranged in a digital display device, so the diameter of the drawn circle can be given directly; the two measuring rulers are two same short rulers, and the bottoms of the measuring rulers are level; when the opening angle of the two measuring rulers is 180 degrees, the hinged upper ends of the two measuring rulers are butted, and the two short rulers form a long ruler; one measuring ruler is provided with an auxiliary ruler, and the auxiliary ruler is a ruler with a long side and a short side; and the short side of the auxiliary ruler slides towards the upper end along the inner side of one measuring ruler, while the long side of the auxiliary ruler contacts the inner side of the other measuring ruler during using, and the opening angle with the degrees selected by digital display angle rule can be drawn along the long side of the auxiliary ruler and the inner sides of the measuring rulers. The multi-functional plotter combines various measuring and plotting functions, such as measuring angles, measuring distances, drawing circles, plotting angels, drawing straight lines and the like, and has the advantages of convenient use, portability, losing proofing and precise plotting.

Description

Multifunctional plotter

(1) technical field

The present invention relates to a kind of drawing instrument, specifically is a kind of multifunctional plotter.

(2) background technology

The simplest set of drawing instruments comprises ruler, set square (two), protractor and compasses etc., and as schooling apparatus, these are things of primary and secondary students' indispensability.But because careless and use not careful, cause losing of some utensil and damage through regular meeting, give and learn and mapping is made troubles, but also will often change set of drawing instruments, cause unnecessary unnecessary spending.

Inconvenient part is also arranged when using above-mentioned set of drawing instruments, such as set square is generally two right angle triangles of 45 ° and 30 °, special angle for 30 °, 45 °, 60 ° and 90 ° can directly be drawn with set square, other angle then needs to measure angle with protractor, causes the inaccurate of tolerance; Draw circle with compasses in addition, its radius will could determined after the contrast on the ruler at every turn, and tolerance is also inaccurate.

(3) summary of the invention:

A kind of have multiple drawing function and the high plotter of drawing accuracy have been the purpose of this invention is to provide.

Can realize the multifunctional plotter of above-mentioned purpose, it at first is a Digit Display Angle Ruler, the upper end hinge dress of its two gage, the subtended angle that forms is between 0 °～180 °, the data reading system of digital display device is the circle sensor, the circle sensor is arranged at the hinge dress place of two gages upper end, the subtended angle number of degrees directly show on the display screen of digital display device, different is that described bevel protractor can be transformed into the compasses use, bevel protractor two gages can be used as the two rule pin (decide pin and change pin) of compasses, install center of circle pin respectively and draw pin as two gage lower ends of rule pin.

Determine method for being different from common compasses diameter, the present invention utilizes the performance of digital display device and disposes calculator, the distance that calculator calculates between the two rule pin (center of circle pin and picture pin) according to the subtended angle and the length data of two rule pin is the diameter of a circle size of doing, and directly shows on the display screen of digital display device.

For simplifying the calculator program, can set the equal in length of two rule pin.

For ease of at the drawing upper drawing circle, described picture pin uses pen core, and pen core is divided into great circle pen core and roundlet pen core, and great circle pen core direction is consistent with the direction of corresponding gage, roundlet pen core deflection center of circle pin and with corresponding gage formation angle.

The gage upper end that center of circle pin is installed also is provided with the compasses rotating shaft that convenient rule pin rotates, and the compasses rotor shaft direction is consistent with the gage direction.

The present invention also can expand ruler and draw the function of angle, and primary condition is that two gages are concordant with the bottom surface that drawing paper (plate) contacts, and each gage is the parallel ruler of interior outer side edges.

When the subtended angle of two gages is 180 °, the butt joint of the upper end of two gages, the outer side edges of two gages is on the straight line, and the present invention under this state can be used as a long ruler and uses.

Draw arbitrarily angled between 0 °～180 °, can't directly finish with the present invention, also will be with a dual-side is parallel but the secondary chi that length is different be used, the short side of secondary chi is in extreme direction slip on the gage on the inner side edge of a gage during use, the long side of secondary chi and the inner side edge of another gage formation one have the angle of intersection point, this angle is consistent with two gage subtended angles, draws out this angle by the long side of secondary chi and the inner side edge of another gage.

The display screen of digital display device is provided with change-over switch, makes display screen show the data of subtended angle and compasses radius respectively.

Advantage of the present invention:

1, multifunctional plotter of the present invention integrate measuring angle, span from, draw circle, draw angle, draw multiple measurement drawing functions such as straight line, easy to use, easy to carry, be difficult for losing.

2, multifunctional plotter of the present invention is owing to have digital display function, and the tolerance of angle and radius is accurate, mapping accuracy height.

3, multifunctional plotter of the present invention has interesting good, high in technological content characteristics, is particularly suitable for students in middle and primary schools and uses, and strengthens the hobby of student to geometrical learning.

(4) description of drawings:

Fig. 1 is the structural representation of a kind of case study on implementation of the present invention.

Fig. 2 is the vertical view of Fig. 1 case study on implementation.

Fig. 3 is the dorsal view of Fig. 1 case study on implementation.

Fig. 4 is the structural representation of the subtended angle of two rulers in Fig. 1 case study on implementation when being 180 °.

Fig. 5 is the vertical view of Fig. 4 case study on implementation.

Fig. 6 is an A-A cut-away view in Fig. 1 case study on implementation.

Figure number sign: 1, gage; 2, center of circle pin; 3, great circle pen core; 4, roundlet pen core; 5, compasses rotating shaft; 6, digital display device; 7, secondary chi; 8, change-over switch; 9, resilient sleeve.

(5) specific embodiments:

In case study on implementation shown in Figure 1, the main body of multifunctional plotter of the present invention is the Digit Display Angle Ruler that two gages, 1 hinge dress forms, and each gage 1 is the identical ruler of length, is formed with the arch bar on the front mediad of gage 1, the bottom surface central authorities of gage 1 offer bar-shaped trough, as Fig. 4, shown in Figure 6.

Digital display device 6 of the present invention is circular, digital display device 6 back central authorities two parts in relative rotation adorn with two gages, 1 hinge respectively, the hinge of two gages 1 is decorateeed and is positioned at positive relative place, right angle, gage 1 upper end, as shown in Figure 3, in digital display device 6 inside, concentric is provided with the fixed grid and the moving grid of round sensor on two parts in relative rotation, and digital display device 6 fronts are display screens, the display screen below is provided with change-over switch 8, as Fig. 1, shown in Figure 4.

Offer pin-and-hole on the following end arch bar end face of a gage 1, equipped resilient sleeve 9 is clamping the center of circle pin 2 that is exposed at outside the gage 1 in the pin-and-hole in the resilient sleeve 9, and the direction of center of circle pin 2 is consistent with the length direction of gage 1; Arch bar end face in another gage 1 lower end is offered pin-and-hole respectively with encircleing on the bar inclined-plane, equipped resilient sleeve 9 in the pin-and-hole, clamping the great circle pen core 3 and the roundlet pen core 4 that are exposed at outside the gage 1 in the resilient sleeve 9, the direction of great circle pen core 3 is consistent with the length direction of gage 1, the length direction of the direction of roundlet pen core 4 and gage 1 forms the angle of deflection center of circle pin 2, as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, center of circle pin 2, roundlet pen core 4, great circle pen core 3 stretches out the equal in length of gage 1, the arch bar end face that gage 1 upper end of center of circle pin 2 is installed is provided with convenient compasses rotating shaft 5 of rotating, and the direction of compasses rotating shaft 5 is consistent with the length direction of gage 1.

As shown in Figure 1, the gage 1 that center of circle pin 2 is installed is equipped with one to draw the secondary chi 7 of angle, secondary chi 7 also is a ruler, one is long and the other is short for its dual-side, the inner side edge that the minor face of secondary chi 7 leans against gage 1 slides to the upper end of gage 1, the long limit of secondary chi 7 can contact with the inner side edge of another gage 1 intersects, and can draw out two gages 1 determined any angle in 0 °～180 ° subtended angles by the long limit of secondary chi 7 and the inner side edge of gage 1.

When the subtended angle of two gages 1 was 180 °, the present invention can be used as a long ruler and use, two gages, the 1 upper end butt joint of this moment, and the bottom surface of two gages 1 is in the same plane, and the inside and outside side of two gages 1 is on same the straight line, as Fig. 4, shown in Figure 5.

Claims

1, multifunctional plotter, comprise the Digit Display Angle Ruler that forms 0 °～180 ° of subtended angles by two gages (1), round sensor in the digital display device (6) is located at the hinge dress place, upper end of two gages (1), it is characterized in that: the lower end of two gages (1) is installed center of circle pin (2) respectively and is drawn pin, makes two gages (1) become two rule pin of compasses.

2, multifunctional plotter according to claim 1 is characterized in that: also being provided with according to distance between subtended angle, two rule pin length computation, the two rule pin in the digital display device (6) is the calculator of circular diameter that compasses are done.

3, multifunctional plotter according to claim 2 is characterized in that: the equal in length of two rule pin.

4, multifunctional plotter according to claim 3, it is characterized in that: the picture pin is a pen core, pen core is divided into great circle pen core (3) and roundlet pen core (4), great circle pen core (3) is consistent with corresponding gage (1) direction, and roundlet pen core (4) is partial to center of circle pin (2) and is formed angle with corresponding gage (1).

5, multifunctional plotter according to claim 4 is characterized in that: gage (1) upper end that center of circle pin (2) is installed also is provided with the compasses rotating shaft (5) consistent with gage (1) direction.

6, according to any described multifunctional plotter in the claim 1～5, it is characterized in that: two gages (1) are the parallel ruler of interior outer side edges, and the bottom surface of two rulers is concordant.

7, multifunctional plotter according to claim 6 is characterized in that: when subtended angle is 180 °, and the butt joint of the upper end of two rulers, the outer side edges of two rulers is on the straight line.

8, multifunctional plotter according to claim 6, it is characterized in that: a gage (1) is furnished with secondary chi (7), secondary chi (7) but the ruler that be uneven in length parallel for dual-side, the short side of secondary chi (7) and the inner side edge of this gage (1) are slidingly matched, go up extreme direction towards this gage (1), the long side of secondary chi (7) forms with the inner side edge of another gage (1) and two gages (1) subtended angle is consistent and the angle of intersection point is arranged.

9, according to any described multifunctional plotter in the claim 2～5, it is characterized in that: digital display device (6) is provided with change-over switch (8), when different change-over switches was worked, the display screen of digital display device (6) showed the data of subtended angle and compasses diameter respectively.