CN201254028Y

CN201254028Y - Assembling portable ruler compasses

Info

Publication number: CN201254028Y
Application number: CNU2008202082398U
Authority: CN
Inventors: 王福祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-11
Filing date: 2008-09-03
Publication date: 2009-06-10
Anticipated expiration: 2018-09-03

Abstract

Disclosed is assembly portable ruler compasses which relate to a drawing tool and are characterized in that a ruler rod (6) is threaded through a ruler opening (13) on an oblique drawing pen sheath (8) and a ruler opening (14) on a centering cone; an oblique drawing pen fixture (11) is arranged in the oblique drawing pen sheath (8); a centering cone fixture (12) is arranged in a centering cone sheath (2); an oblique drawing pen (7) and a centering cone (1) are respectively arranged in the oblique drawing pen fixture (11) and the centering cone fixture (12); a fixture fixing bolt (9) and an oblique drawing pen sheath fixing bolt (10) are arranged on the oblique drawing pen sheath (8); the oblique drawing pen sheath (8) forms sharp angles with the lower part of the ruler rod (6) and the 0 graduation direction of the ruler rod; a centering cone sheath positioning nail (5) is arranged on the ruler rod (6). The assembly portable ruler compasses solve the problems that the line between the handle and the circle center of inverted V-shaped compasses in the prior art is not perpendicular to a drawing surface to generate moment due to the structure inverted V-shaped compasses, so as to enable drawing to be operated uneasily; generally, only one type of pen is used for drawing, so the operation is inconvenient; the ground compasses in the prior art cannot draw a circle with radius less than 30cm and is inconvenient in carrying.

Description

Assembly portable formula chi compasses

Technical field

The utility model relates to drawing instrument.

Background technology

The chevron shaped compasses that present people generally use are because himself structure makes handle be not orthogonal to drawing to line between the center of circle, and active force can not produce moment vertically to centre point, make that mapping is not easy to operate; Secondly, the distance between the two rules and regulations legs is not easy to fix; The 3rd, need on an other ruler, measure when deciding radius; Also have generally and can only cause and use inconvenience with a kind of mapping; The present rule can not be drawn the circle of radius less than 30CM normally usedly, and be not portable.

Summary of the invention

The purpose of this utility model provide a kind of easy operation, easily fix the distance of two rule between the legs, do not need other ruler decide radius, can change the assembly portable formula chi compasses of the circle of variety classes pen, any radius of picture as required at any time.

The purpose of this utility model is realized by following mode:

Assembly portable formula chi compasses, it is characterized in that oblique paintbrush cover (8) is the parallelogram framework, centering tapered sleeve (2) is the rectangle framework, on plane relative on the parallelogram framework of oblique paintbrush cover (8), a pair of chi mouth (13) is arranged, on the relative plane a pair of chi mouth (14) is arranged on centering tapered sleeve (2) the rectangle framework, chi bar (6) passes chi mouth (13) and chi mouth (14), tiltedly in the parallelogram framework of paintbrush cover (8) oblique paintbrush anchor clamps (11) are arranged, in the rectangle framework of centering tapered sleeve (2) centering cone anchor clamps (12) are arranged, tiltedly paintbrush (7) and centering cone (1) place oblique paintbrush anchor clamps (11) and centering cone anchor clamps (12) respectively, tiltedly on the paintbrush cover (8) anchor clamps set bolt (9) and oblique paintbrush cover set bolt (10) are being arranged, on centering tapered sleeve (2), centering cone set bolt (4) and anchor clamps set bolt (3) are arranged, tiltedly paintbrush cover (8) acutangulates with the below of chi bar (6) and 0 scale direction of chi bar, and centering tapered sleeve locating pin (5) is arranged on the chi bar (6).

Centering cone (1) is vertical with chi bar (6), and on 0 scale end of chi bar (6).。

The utility model has the advantages that: during work, to be fixed into acute angle between oblique paintbrush (7) and the chi bar (6), can make oblique paintbrush point to greatest extent by last centering cone point, can be easy to draw radius greater than zero any circle, chi bar (6) can be passed centering tapered sleeve (2) when carrying and be assembled into in-line and parallel with chi bar (6) with oblique paintbrush cover (8), the utility model of conserve space, and maintenance to greatest extent ruler volume minimum is convenient for carrying; Acute angle also is the manual angle of holding pen of imitation simultaneously, is difficult for scratching paper; Centering cone (1) miter square bar (6) helps centering cone (1) perpendicular to paper, and active force vertically to the center of circle, makes picture not produce moment, and mapping is operation easily; Oblique also various dissimilar pens of clamping as required of paintbrush cover (8), centering cone anchor clamps (12) can be done centering cone (1) by a clamping base part, convenient use.

Description of drawings

Structural representation when Fig. 1 is the utility model duty;

Fig. 2 is the vertical view of the utility model Fig. 1;

Structural representation when Fig. 3 is the utility model carrier state.

The specific embodiment

Embodiment:

Centering cone (1) is vertical with chi bar (6), and on 0 scale end of chi bar (6).

The front and back of chi bar (6) all has graduation mark, and is easy to use.

During duty, move oblique paintbrush cover (8) on request, the selected radius scale that requires by the fixing oblique paintbrush cover (8) of oblique paintbrush cover set bolt (9), with the fixing center of circle of centering cone, twists centering cone (1) handle, the oblique paintbrush desired circle that both can draw.

During carrier state, unclamp the set bolt (10) of oblique paintbrush cover (8) and the set bolt (4) of centering tapered sleeve (2), tiltedly paintbrush cover (8) and centering tapered sleeve (2) are taken off from chi bar (6), then chi bar (6) is penetrated in oblique paintbrush cover (8) and the centering tapered sleeve (2), then tiltedly paintbrush cover (8) becomes yi word pattern with centering tapered sleeve (2) with chi bar (6), is convenient for carrying.

Claims

1, assembly portable formula chi compasses, it is characterized in that oblique paintbrush cover (8) is the parallelogram framework, centering tapered sleeve (2) is the rectangle framework, on plane relative on the parallelogram framework of oblique paintbrush cover (8), a pair of chi mouth (13) is arranged, on the relative plane a pair of chi mouth (14) is arranged on centering tapered sleeve (2) the rectangle framework, chi bar (6) passes chi mouth (13) and chi mouth (14), tiltedly in the parallelogram framework of paintbrush cover (8) oblique paintbrush anchor clamps (11) are arranged, in the rectangle framework of centering tapered sleeve (2) centering cone anchor clamps (12) are arranged, tiltedly paintbrush (7) and centering cone (1) place oblique paintbrush anchor clamps (11) and centering cone anchor clamps (12) respectively, tiltedly on the paintbrush cover (8) anchor clamps set bolt (9) and oblique paintbrush cover set bolt (10) are being arranged, on centering tapered sleeve (2), centering cone set bolt (4) and anchor clamps set bolt (3) are arranged, tiltedly paintbrush cover (8) acutangulates with the below of chi bar (6) and 0 scale direction of chi bar, centering tapered sleeve locating pin (5) is arranged on the chi bar (6), centering cone (1) is vertical with chi bar (6), and on 0 scale end of chi bar (6).