CN2096473U

CN2096473U - Multipurpose drawing apparatus

Info

Publication number: CN2096473U
Application number: CN 91205152
Authority: CN
Inventors: 徐庆林; 杨葆英
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-06
Filing date: 1991-04-06
Publication date: 1992-02-19

Abstract

The utility model relates to a multi-purpose drawing apparatus which is a quick and multi-purpose drawing tool suitable for engineers and students and is composed of a circle ruler with an L-shaped long slot, a main ruler plate with lug boss legs, a vernier arranged on the circle ruler, pressing legs and a movable circle-center pin. The utility model is characterized in that the circle ruler is arranged on the main ruler plate and can relatively rotate, conveniently drawing a circle through the movable vernier on the circle ruler; through the circle ruler and the L-shaped long slot, angles can be measured conveniently, and oblique lines at discretional angles, etc., can be conveniently drawn. Integrated with a set-square, a scale, a protractor, compasses and templates, the utility model has the advantages of convenient operation, rapidity of drawing and cleanness.

Description

Multipurpose drawing apparatus

The utility model relates to a kind of improved drawing instruments of using more, is fit to the engineering depiction, on-the-spot mapping, and form etc. is drawn in student's mapping.

At present, engineers and technicians and student draw, the line of drawing squares, picture table, and to use set square, protractor, compasses, engineer's scale and Pattern plate ruler are main, because number of packages is many, use and carry equal inconvenience, also reduce drawing efficiency.In addition, set square, protractor and T-square etc. are big with the drawing contact-making surface, in moving around, constantly pencil end and dust are rubbed and be coated on the drawing, and when tracing designs, the ink that nib is overflowed and the not dried line of ink marker are applied on the drawing again, cause quality of drawing not good.

The purpose of this utility model is exactly at above-mentioned weak point, and a kind of improved drawing instrument is provided.

The utility model is design like this: do the main scale plate with a transparent plate, make a big stepped hole on the plate, prop up a transparent plate shape circle chi in relative rotation on the hole.The circle chi is offered rectangular " L " shape elongated slot on the plane, in order to draw right-angle line fast and continuously.Allow an outer straight flange of elongated slot overlap, make staff gauge reticle and reticule along this limit and circle chi limit respectively, be used in combination, can take measurement of an angle easily and make oblique line at any angle with index line on the main scale plate about center of circle symmetry with diameter line.On this top, limit, offer some slotted holes of parallel equidistant distribution with it.Cross the center of circle and do the sideline of regular polygon central angle, intersect with slotted hole and form one group of isosceles triangle.Can make the positive hexagon figure of multiple regular polygon and nut by them.By adorning a vernier that moves along diameter line, its Kong Ze is positioned at " L " shape elongated slot top on the circle chi, and nib inserts this hole, rotates the garden chi, can justify, and moving cursor can change makes radius of a circle.Adorn a movable center of circle pin on the main scale plate, needle point is placed on the center of circle, and slewing circle chi or moving cursor are measured radius, then rotate the main scale plate, makes the circle of larger diameter with pen.Again by adorning a presser feet, when making great circle, it can be clamped in the circle chi on the main scale plate on the main scale plate.On the main scale plate, do two orthogonal right-angle sides, can be used to draw straight line and make vertical line.A right-angle side inboard, make a parallel ruling groove.In the both sides up and down of groove, make identical abscissa scale, in order to draw form etc. as parallel lines.Vertical dual-side along elongated slot is made the scale graduation line with parallel right-angle side, directly makes the ratio line with these three limits, than more convenient with engineer's scale.Make curved side and nut on all the other two sides of main scale plate and it with the vacant position of circle chi, curve, model line such as surface roughness can be drawn their figure and symbol fast.Make several boss legs in main scale plate lower surface, the contact-making surface of drawing and drawing instrument is reduced, can effectively improve quality of drawing.

Advantage of the present utility model: its collection set square, engineer's scale, protractor, compasses, Pattern plate ruler with all over the body, it is many to have function, carries, easy to use, reduces aid, draws fast, the drawing cleaning is made characteristics such as round no center of circle nib hole with the circle chi.

Below in conjunction with accompanying drawing the utility model structure is described in detail.

Fig. 1 is the utility model concrete structure schematic diagram.

Fig. 2 is the cutaway view of the utility model along the k-k line.

Fig. 3 is the amplification view of cursor structure.

Fig. 4 is the amplification view of presser foot.

Fig. 5 is the amplification view of movable center of circle needle construction.

Fig. 6 is the round chi partial structurtes view of simple type.

Among Fig. 1, (1) is the main scale plate, and (2) are the circle chis, and (3) are verniers, and (4) are presser feets, and (5) are movable center of circle pins.Circle chi (2) is made by transparent material.It is circular dull and stereotyped, and external diameter is the one-level step.One rectangular " L " shape elongated slot (28) is arranged on the plane, and its an outer straight flange (29) overlaps with diameter line.By guaranteeing to be drawn straight line just in time by the center of circle along this limit, this limit in fact diameter group line slightly is offset about half live width, if the discontinuous right-angle side of doing can be changed system into a word length groove with L type elongated slot (28).Make 180 ° reticule and staff gauge reticle respectively along circle chi (2) edge and straight flange (29) edge, on straight flange (29) top, work is about center symmetry and be parallel to some slotted holes (27) of straight flange (29), they are equidistant distribution, cross the sideline that the center of circle remakes the regular polygon central angle, intersect respectively with slotted hole (27), constitute one group of isosceles triangle.In straight flange (29) bottom, make a parallel gathering sill (21).Vernier (3) is the vernier body (8) and all T-shaped (see figure 3) of briquetting (10) at two ends up and down, establishes in opposite directions every rubber cushion (9), and boss is embedded in the gathering sill (21), and can slide; Binding screw (6) by them is adjusted the gap of vernier (3) to main scale plate (1) with rubber cushion (9) combination, guarantees vernier (3) non-loosening ground slippage.Turn-knob (7) upper end is the shape of handling knob, and the lower end is a bolt, passes vernier body (8) and rubber cushion (9), screws in the screw of briquetting (10), tightens turn-knob (7), fixedly the position of vernier (3).On the flat board of vernier body (8) upper end a hole (32) is arranged.Nib passes this hole can or be justified along straight flange (29) line.When vernier does not use, shift out " L " shape elongated slot (28) out-of-bounds.Main scale plate (1) is made by transparent material.It is an one flat plate, and a macropore (30) is arranged on the plate face, and hole shoulder (see figure 2) is made in the macropore lower end, and this Kong Yuyuan chi (2) external diameter is combined into end face and bush(ing) bearing.Two index lines are carved in position at macropore (30) edge over against 0 ° and 180 °.The also interchangeable position of reticule on index line on the main scale plate (1) and circle chi (2) is scribed and is not influenced use.Main scale plate (1) has two orthogonal right-angle sides (23,24), and the side of all the other directions is by curve, and broken line combines.Make scale label at right-angle side (23) edge.At the inboard parallel ruling groove (25) of doing of right-angle side (24).Identical abscissa scale is made in both sides about this groove.Along vertical dual-side of ruling groove (25) and right-angle side (24), make different scale graduations respectively.Be close to side at macropore (30), presser feet (4) (see figure 4) is housed.Its pole (11) lower end is fixed on the main scale plate (1), and the upper end is inserted in spring (15) successively, and compressing tablet (13) screws in nut (12) again and pushes down.Press resistant pillar (14) is embedded in compressing tablet (13) and presses in the groove of mouth, prevents that circle chi (2) from producing impression and scuffing.During use, fastening nut (12) will be justified chi by compressing tablet (13) and press resistant pillar (14) and be clamped on the main scale plate (1).Movable center of circle pin (5) (see figure 5) also is equipped with in corner in main scale plate (1).Wherein, screw rod (17) upper end is a turn-knob, and the centre is a screw thread, and the lower end is a needle point.It passes pad (18), screws in the nut (16) that is fixed on the main scale plate (1), rotates its turn-knob, and its needle point is stretched out or retraction from the bottom face of main scale plate (1).Place, diagonal angle in last movable center of circle pin (5) position of main scale plate (1) is distributed with many nib hole (26) of arranging according to certain rules, and scale label is made on the next door.At main scale plate (1) with above the circle chi (2), also have nut (20), curve, surface roughness, Tolerance Symbols in Shape and Relative Position (19), roundlet, ellipse model line such as (22).Several boss legs (31) are arranged in the lower surface of main scale plate (1), contact with drawing in order to minimizing main scale plate (1), circle chi (2).

Use of the present utility model: (one) justifies.The center of circle chi (2) aligns the center of circle on the drawing, pins main scale plate (1), and fixedly vernier (3) inserts a hole (32) with nib, drives circle chi (2) with pen and rotates, and can justify.Moving cursor (3) can change radius of a circle.(2) make the major diameter circle.Screw the turn-knob of screw rod (17), needle point stretches out from the lower surface of main scale plate (1), is placed on circle centre position on the drawing.Move circle chi (2) and vernier (3) then and measure radius, nib is inserted a hole (32) or nib hole (26), mobile drawing pen drives main scale plate (1) and rotates, and makes the major diameter circle.(3) make any oblique line.Earlier straight flange (29) or right-angle side (23) are aimed at baseline, slewing circle chi (2), with the angle groove of index line to alignment request, promptly available pen is made desired oblique line along straight flange (29), and (four) make regular polygon.To justify chi (2) center of circle and aim at the center of regular polygon on the drawing, press the length line of the sideline indication of regular polygon central angle along corresponding slotted hole (27) limit with pen, to justify chi (2) and turn over a central angle, maybe will go up the starting point of the terminal point on bar limit to director circle chi (2) slotted hole (27), and the 2nd limit of drawing, make all the other sidelines of regular polygon then successively.(5) all the other purposes.Utilize the identical scale of ruling groove (25) and its both sides, can make parallel lines, draw form etc.Can draw straight line with right-angle side (23,24) and make vertical line, use L shaped elongated slot (28) and can draw right-angle side continuously.In addition, it also can be made the ratio line, draw nut, curve, ellipse, surface roughness, form and position tolerance figures and symbol.It and T-square are used in combination, and mapping can be convenient.Its specification can be divided multiple, the large-scale engineering mapping that is used for, and the student that then is fit to of small-sized simple type uses.Also difference to some extent adapts to different needs in the configuration of model line.

The use of simple type: remove vernier (3) presser feet (4), movable center of circle pin (5) gathering sill (21) is changed system into aperture (33) (see figure 6) that distributes according to certain rules, promptly constitute simple type of the present utility model.Its using method is with above-mentioned similar substantially, only at the bowlder of doing than minor diameter, with the aperture (33) on the nib insertion circle chi (2), and when making great circle,, pin round chi (2) with its upset, penholder is gone in the nib hole (26), rotate main scale plate (1) and can justify.

Claims

1, one has the main scale plate (1) of graduation mark, ratio line, model line and the multi-purpose drafting tool that circle chi (2) is formed, and it is characterized in that:

A. round chi (2) is contained in the macropore (30) of main scale plate (1), and vernier (3) is contained in the gathering sill (21) of round chi (2), and presser feet (4) is contained in macropore (30) avris, and movable center of circle pin (5) is contained in the corner of main scale plate (1),

B. main scale plate (1) is the combination shape flat board with two orthogonal right-angle sides (23,24), the macropore (30) that one lower end shoulder with holes is arranged in the middle of dull and stereotyped, a ruling groove (25) parallel with any right-angle side is arranged in right-angle side (23,24) inboard, place, diagonal angle in movable center of circle pin (5) position, be distributed with many regularly arranged nib hole (26) that are, the bottom face of main scale plate (1) has several boss legs (31)

C. round chi (2) is a garden shape flat board, and external diameter is a utmost point step, and it is free to rotate in macropore (30).A rectangular L shaped fluting (28) is arranged on the plane, an its outer straight flange (29) overlaps slightly outside translation from the diameter with circle chi (2), in straight flange (29) below a parallel with it gathering sill (21) is arranged, there are some parallel and be the slotted hole (27) of equidistant distribution in straight flange (29) top, the sideline of regular polygon central angle is done in the center of circle of crossing circle chi (2), intersect respectively with slotted hole (27), constitute one group of isosceles triangle.

2, according to the multi-purpose drafting tool of claim 1 regulation, it is characterized in that: scale label is engraved on right-angle side (23) respectively, ruling groove (25) up and down both sides laterally, nib hole (26) side and straight flange (29) are located.The ratio line is engraved in vertical dual-side place of right-angle side (24) and ruling groove (25) respectively, 0 °-180 ° reticule and be engraved in round chi (2) and macropore (30) edge respectively over against 0 ° of two index line with 180 ° of positions, the position of reticule and index line is interchangeable.

3, multi-purpose drafting tool according to claim 1 regulation, the structure that it is characterized in that said vernier is: vernier (3) the vernier body (8) and the briquetting (10) at two ends up and down is all T-shaped, establish in opposite directions every rubber cushion (9), boss is embedded in the gathering sill (21), and can slide, binding screw (6) by them is adjusted the gap of vernier (3) to main scale plate (1) with rubber cushion (9) combination, guarantee vernier (3) non-loosening ground slippage, turn-knob (7) upper end is the shape of handling knob, the lower end is a bolt, passes vernier body (8) and rubber cushion (9), screws in the screw of briquetting (10), tighten turn-knob (7), fixedly the position of vernier (3).

4, the multi-purpose drafting tool of stipulating according to claim 1, the structure that it is characterized in that said presser feet is: press resistant pillar (14) is embedded in the pressure port recess of compressing tablet (13), then with spring (15), compressing tablet (13), nut (12) is sleeved on pole (11) upper end of being fixed in the main scale plate (1) successively, fastening nut (12), circle chi (2) then is clamped on the main scale plate (1).

5, the multi-purpose drafting tool of stipulating according to claim 1, the structure that it is characterized in that said movable center of circle pin is: screw rod (11) upper end is a turn-knob, the centre is a screw thread, the lower end is a needle point, it screws in the nut (16) that is fixed in the main scale plate (1) by pad (18), rotate turn-knob, needle point stretches out from the lower surface of main scale plate (1) or withdraws.

6, according to the multi-purpose drafting tool of claim 1,3 regulations, it is characterized in that said gathering sill (21) and vernier (3) can be replaced by many apertures (33), the well-regulated position that is distributed in gathering sill (21) of aperture (33).

7, according to the multi-purpose drafting tool of claim 1 regulation, it is characterized in that said L type elongated slot (28) can be replaced by a word length groove, elongated slot is positioned on the diameter line of round chi (2), the invariant position of straight flange (29).

8,, it is characterized in that said main scale plate (1) and circle chi (2) all adopt transparent material to make according to the multi-purpose drafting tool of claim 1 regulation.