CN2790799Y - Multi-purpose plotter - Google Patents

Abstract

The utility model relates to a multifunctional measuring and drawing device which has multifunction on measuring and drawing. The utility model is composed of four isometric scales, a 1/4 circular angle scale and pointers. The utility model is characterized in that end points of right angle points of the four scales are connected by rotating shafts to form a parallelogram-shaped structure which can be freely changed; the 1/4 circular angle scale is cast into the integration with one scale, and a circle center is arranged at the rotating shafts; two rows of scales of 0 DEG to 90 DEG and 180 DEG to 90 DEG are arranged on the 1/4 circular angle scale; pointers are arranged on the other scale which is coaxial with the 1/4 circular angle scale. When the parallelogram is opened, pointers simultaneously point out two degrees on the angle scale and the two degrees are respectively angles of two adjacent field angles arranged in the parallelogram. The utility model can finish measuring and drawing any angle between 0 DEG to 360 DEG in one step, can fast draw various triangles, parallelograms and parallel lines and can measure angles of various real objects. The utility model has the advantages of simple structure, portability and easy storage.

Description

Many with the mapping device

Affiliated technical field

The utility model relates to a kind of at the plotting board that serves many purposes aspect measurement and the drawing, especially can finish the mapping of various angles, various triangle, various parallelogram and the mapping devices of using that length, parallel lines are surveyed and drawn a step more.

Background technology

At present, disclosed practical patent " multi-functional mapping device " by my application, patent No. ZL02230663.3, structure are combined by two scale pin, semicircle angle scale, pointer, handle, three parallel bars, two location-plates and parts such as draw point, nib.When two scale pin around the axle on top when opening, its open-angle can change between 0 °～180 °, the reading that pointer is pointed out on angle scale, it is exactly the angle between the two scale pin, utilize two scale pin can survey and draw any angle between 0 °～360 °, utilize of the combination of three parallel bars, can draw various parallelogram with a scale pin.But this mapping device when the first, two scale pin opened, has only an open-angle (hereinafter to be referred as subtended angle), and the used angle scale of mapping angle must be semicircular, need seem very dumb again and again in actual mapping operation; The second, to the drafting of parallelogram, must increase by three parallel bars, insufficient to utilizing of scale script body, make not science of structure, seem complicated; The 3rd, can not be used for drawing parallel lines; The 4th, can not be used for surveying inner corner trim (re-entrant angle) in kind; In addition, scratch finger and paper easily during the existence of draw point is used.

Summary of the invention

Disclosed in order to overcome " multi-functional mapping device " can not draw parallel lines and the deficiency that can not survey re-entrant angle in kind, in order when drawing parallelogram, to remove three parallel bars from, for when surveying and drawing various angle, must not use semicircular angle scale, and can strengthen the flexibility of use again, it is a kind of many with the mapping device that the utility model provides, this mapping device, can not only finish the mapping of any angle between 0 °～360 ° a step from function, the length mapping, the triangle and the parallelogram of the various notice length of sides and angle fast draw, and can also draw parallel lines, can also survey external corner (salient angle) and inner corner trim (re-entrant angle) in kind.On structure, need only exempt from structure to be become simplify with the angle scale of 1/4 circle with three parallel bars, two location-plates, handle and draw points, operate the safety that becomes.

The technical scheme that its technical problem that solves the utility model adopts is: be made up of more than four parts such as isometric millimeter rule, the 1/4 round angle scale that indicates 0 °～90 ° and 180 °～90 ° two row's scales and pointer on the whole.The place, end points right angle of four rules couples together with rotating shaft.Form the parallelogram sturcutre of energy random variation, when four edges closes up, just become rule, can carry out the length mapping, when four edges draws back, just can draw various parallelogram with two double-length degree.1/4 round angle scale is followed a rule cast solid wherein, its center of circle is in the rotating shaft of this rule end points, a pointer is installed on another root rule that links to each other with this rotating shaft, when the four edges of being made up of four rules draws back, four subtended angles just appear simultaneously in quadrangle inside, two wherein adjacent subtended angle sums are always 180 °, and the summation of four subtended angles is always 360 °.Pointer can sweep on angle scale with the folding of four edges, and pointer can be pointed out two number of degrees simultaneously on angle scale, represents the angle of adjacent two subtended angles respectively.Form straight line when four edges closes up fully, at this moment the number of degrees pointed out of pointer are 0 ° and 180 °, when four scale limits are fully withdrawn, and the composition square structure, two number of degrees that pointer is pointed out are 90 °.This structure, though pointer inswept angle on angle scale has only 90 °, but because pointer can be pointed out the angle of two subtended angles simultaneously, so just can finish the mapping of any angle between 0 °～360 ° a step, owing to occur four subtended angles simultaneously in the parallelogram, in practical operation, can choose at random a certain subtended angle and measure or draw, seem very nimbly and freely.In addition, utilize the variation of parallelogram to draw parallel lines and also seem very simple, easy.

Of the present utility model producing effect is, owing to utilized four isometric rules composition parallelogram and followed the science of angle scale, pointer to make up, on the function, can flexibly and fast survey and draw various angles, various triangle, various parallelogram, can also draw parallel lines, and can be used for measuring external corner and inner corner trim in kind; On the structure, need only 1/4 round angle scale, four rules and pointer, building block is few, and is simple and exquisite, is easy to carry and takes care of.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Figure of description is a structural principle front view of the present utility model.

1, four isometric rule among the figure; 2, angle scale; 3, pointer.

The specific embodiment

In the drawings, the place, end points right angle of four rules (1) connects into parallelogram sturcutre with rotating shaft; Angle scale (2) is with a rule cast solid, and the center of circle is in rotating shaft place of rule end points, and the graduation mark of 0 ° and 180 ° is with the interior straight line coincidence of this rule; Pointer (3) is installed in on another coaxial root rule of the angle scale center of circle.

Many with mapping device most preferred embodiment, every rule; Long 60mm, wide 13mm, thick 3mm; Angle scale: radius 45mm, thick 3mm; Pointer: effective length 45mm.

Claims (1)

1. A kind of many with the mapping device, by four isometric millimeter rules, the 1/4 round angle scale and pointer five parts that indicate 0 °～90 ° and 180 °～90 ° two row's scales assemble, it is characterized in that: the place, right angle of four rule end points couples together with rotating shaft, the parallelogram sturcutre of forming the energy random variation, angle scale is followed wherein rule cast solid, its center of circle is in rotating shaft place of this rule end points, the graduation mark of its 0 ° and 180 ° overlaps with the interior straight line of this rule, pointer is installed in on another coaxial root rule of the angle scale center of circle, when parallelogram is opened, two number of degrees that pointer is pointed out on angle scale simultaneously just are respectively the angles of adjacent two subtended angles in the parallelogram.