CN87209228U

CN87209228U - Single-arm multifunction line drafting instrument

Info

Publication number: CN87209228U
Application number: CN 87209228
Authority: CN
Inventors: 程玉香; 王晓成
Original assignee: 程玉春
Priority date: 1987-06-19
Filing date: 1987-06-19
Publication date: 1988-06-01

Abstract

The utility model relates to a single-arm multifunction line drafting instrument. The single-arm multifunction line drafting instrument is composed of a magnetic post, a base, a longitudinal rod, a transverse rod, a rotary device, a hinged device, a line drafting device, a scale disk, and a movable sleeve. The magnetic post can be tightly sucked on the iron surface of an arbitrary body. The longitudinal rod and the transverse rod can do rotation in arbitrary angles and move from top to bottom, and from left to right by the rotary device and the hinged device, and thereby, the single-arm multifunction line drafting instrument can directly and correctly draft out the curves of intersecting lines, parabolas, rounds, ellipses, etc. on a plane surface or a curved surface. The utility model has the advantages of flexible operation, light weight, convenient carrying, good part interchange performance, and easy disassembly and installation.

Description

Single-arm multifunction line drafting instrument

The utility model belongs to the drawing article class, is a kind of improved multi-functional lining instrument.

At present, drafting vertical with pipe to any geometrical body or the intersection that out of plumb intersects mostly is to make model with the principle of picture expanded view, and this method very complicated is very time-consuming, and needs bigger drawing instrument, is not easy to use at the scene.The external invention can be drawn pipe and the intersection that pipe intersects vertically or out of plumb the intersects instrument of ruling.The device that can mark two crossing pipe kerfs is all disclosed as United States Patent (USP) 3835541 and 4277894.But they all can not mark the intersection that any geometrical body and pipe intersect, and can not mark multiple curves such as circle, ellipse, hyperbola, parabola on plane or curved surface.And these apparatus structure complexity are used also inconvenient.Domesticly invented a kind of multi-functional lining instrument recently, and be disclosed on the Chinese patent 86204124.This lining instrument comprises magnetic bases, whirligig, articulated mounting, longitudinal rod, longitudinal rod disk, transverse bar, transverse bar disk, fairlead and chalker.It can directly and exactly mark the intersection that any geometrical body is vertical with pipe or out of plumb intersects on the body surface, various curves such as arbitrarily angled, round, oval, circumference Along ent position, hyperbola, parabola can be marked in the plane, above-mentioned geometric projection can be on interior positive camber, marked.But this lining instrument volume is bigger, uses underaction light, carries inconvenience, and interchangeablity is poor.

The utility model purpose provide a kind of flexible and convenient to use, in light weight, be easy to dismounting, interchangeablity multi-functional lining instrument strong, easy to carry.It can directly and exactly mark the intersection that its or out of plumb vertical with pipe intersects on any body surface, can mark various curves such as arbitrarily angled, round, oval, hyperbola, parabola, circumference Along ent position on plane, interior positive camber, male and fomale(M﹠F).And digital display can be installed replace range estimation.

Multi-functional lining instrument of the present utility model mainly is made up of magnetic base, whirligig, articulated mounting, longitudinal rod, movable sleeve, transverse bar, secondary longitudinal rod and chalker.The utility model has replaced longitudinal rod disk and the fairlead in the foregoing invention with movable sleeve, has saved the transverse bar of a side, makes the lining instrument structure lighter and handier, flexible.Magnetic base of the present utility model is made up of magnetic post and chassis, has alleviated the weight of lining instrument, uses also more convenient.In addition, part of the present utility model has interchangeability, is easy to dismounting, and is easy to carry.

Accompanying drawing of the present utility model is as follows:

Fig. 1 is the schematic diagram of multi-functional lining instrument;

Fig. 2 is base, whirligig, articulated mounting and the longitudinal rod vertical view of multi-functional lining instrument;

Fig. 3 is the A-A cutaway view of Fig. 1;

Fig. 4 is the schematic diagram of movable sleeve parts;

Fig. 5 is the B-B cutaway view of Fig. 4;

Fig. 6 is the movable sleeve rearview;

Fig. 7 is that two pipelines intersect the 45 intersection line schematic diagrames of being responsible for when spending;

Fig. 8 is the two pipelines line of the saddle line on arm schematic diagrames when intersecting vertically.

Below in conjunction with accompanying drawing in detail embodiment is described in detail.

As can be seen from Figure 1, magnetic base of the present utility model is made up of magnetic post 1 and round bottom dish 2, and whirligig comprises turning cylinder 4, bearing 21, and articulated mounting comprises angle axle 6 and jointed shaft 23.The utility model also comprise clock dial 3, fan dial 5, longitudinal rod 7,

movable sleeve

8,13, transverse bar 9, semicircle dial 10,14, secondary longitudinal rod 12 and by scriber 16(or cutting torch) and the chalker formed such as angle axle 15.

Magnetic post 1 is four, be evenly distributed on round bottom dish 2 around, by four magnetic switch 17 four magnetic posts 1 are connected on the round bottom dish 2.When starting magnetic switch 17, magnetic post 1 just produces magnetic force, and base can be inhaled tightly on the quilt member of ruling.Be equipped with clock dial 3 above the round bottom dish 2, clock dial 3 rotatable 360 degree angles cooperate the angle that indication longitudinal rod 7 rotates with angle vernier 18.Also be equipped with a locking device on round bottom dish 2, for example lock(ing) bolt 19, tighten lock(ing) bolt 19, and clock dial 3 just can not rotate (see figure 2).

Have a circular groove 20 in round bottom dish 2 centers, a groove 20 and a radial antifriction bearing 21 are tight fits, insert turning cylinder 4 in the endoporus of rolling bearing 21, turning cylinder 4 can be under the cooperation of rolling bearing 21,2 central shafts rotate 360 degree around the chassis neatly, turning cylinder 4 is tight fits with clock dial 3 centre bores 22, and when turning cylinder 4 rotated, clock dial 3 also rotated synchronously thereupon.Turning cylinder 4 tops have groove, can embed angle axle 6 in the groove, and fixedly connected with a jointed shaft 23, and jointed shaft 23 and angle axle 6 are formed articulated mounting.Angle axle 6 can rotate on demand, and turning cylinder 4 cooperates the inclined-plane that is miter angle with the end face of angle axle 6, makes angle axle 6 rotate 90 degree around jointed shaft 23.The angle of rotating is indicated by

semicircle dial

5 and 24 cooperations of angle vernier.Angle vernier 24 usefulness screws 25 are fixed on the angle axle 6, and semicircle dial 5 is screwed on circular dial scale dish 3.Angle axle 6 upper ends also have groove to embed longitudinal rod 7.Longitudinal rod 7 is fastening with angle axle 6 usefulness set bolts 26, and when wanting dismounting longitudinal rod 7, the 26(that can unscrew or tight a bolt sees Fig. 3).

Longitudinal rod 7 is hollow stems, and a side of bar has guiding elongated slot 34, cooperates with guider screw 30.On longitudinal rod 7, be with movable sleeve 8.Half clock dial 10 is installed on this movable sleeve 8, fixing by screw 31.Dial 10 cooperates the rotational angle that can indicate transverse bar 9 with angle vernier 27.Movable sleeve 8 longitudinally bar 7 moves axially, and when bolt 28 was tightened, movable sleeve 8 just can not move up and down vertically, can only radially rotate, and respectively there is a lining 29 at the two ends up and down of movable sleeve 8 inwalls, make move more flexible, and by guider screw 30 guiding.When guider screw 30 unclamped, movable sleeve 8 can longitudinal rod 7 be the axle three-sixth turn also.One side of movable sleeve 8 has an elongated slot 35, to observe the scale (not drawing on the figure) on longitudinal rod 7.On the relevant position of elongated slot 35, digital display can be installed, can avoid estimating the error that causes like this.Movable sleeve 8 is connected with transverse bar 9 with bolt 33 by gusset plate 32, and when unclamping bolt 33, transverse bar 9 just can rotate in 180 degree around the axis of bolt 33.The axis of transverse bar 9 must with the axes intersect (seeing Fig. 4-6) of longitudinal rod 7.

Transverse bar 9 also is a hollow stem, on also be equipped with a movable sleeve 13, movable sleeve 13 is connected with a secondary longitudinal rod 12, secondary longitudinal rod 12 lower ends are connected to angle axle 15 and scriber 16, angle axle 15 is for making scriber 16 rotate 90 degree around the jointed shaft of fixing it.The structure of movable sleeve 13 is identical with movable sleeve 8 with effect, and the piece mark of movable sleeve 13 is on figure shown in the bracket.The other end of transverse bar 9 also is connected to an angle axle 11, can connect scriber at this, and a side of transverse bar 9 also is carved with scale.

Cutter is installed on

angle axle

11,15 just can be directly cut into required form to member.

In sum, the multi-functional lining instrument rotary part of the utility model increases greatly, and instrument uses more flexible, more convenient, because the component interchanging performance of whole instrument is good, assembly and disassembly is convenient, has also reduced manufacturing expense again.This lining instrument adopts magnetic post and has simplified parts such as disk, so weight saving, and delicate structure is easy to carry.Lining instrument can be installed digital display can avoid estimating error, thereby makes line more accurate.

Illustrate using method of the present utility model below.

Example one. draw the intersection (see figure 7) that trunk line and branch pipe(tube) intersect 45 degree.

1. start magnetic switch 17, tightly hold trunk line 36, keep trunk line axis and chassis 2 vertical and intersectant centerlines with magnetic post 1.

2. rotational angle axle 6 to fan dial 5 is indicated at 45 degree places, makes the dead in line of the axis and the branch pipe(tube) 37 of longitudinal rod 7.

3. adjust the position of transverse bar 9 and secondary longitudinal rod 12, make the axis of transverse bar 9 and the intersect vertical axis of longitudinal rod 7, the intersect vertical axis of the axis of secondary longitudinal rod 12 and transverse bar 9, and be parallel to the axis of longitudinal rod 7.Secondary longitudinal rod 12 should be adjusted to consistent with the branch pipe(tube) radius in the position of transverse bar 9, i.e. the indication of scale on the transverse bar 9 is the arm radius value.

4. unclamp guider screw 30 and bolt 28, movable sleeve 8 can radially be rotated and move axially.All the other screws, bolt, switch are all tightened, and rule on trunk line 36 with scriber 16 then, and the gained curve is the intersection that two pipelines intersect 45 degree.

Example two. on branch pipe(tube), draw the saddle line that trunk line and branch pipe(tube) intersect, see Fig. 8 (corresponding to trunk line and the equal situation of branch pipe(tube) radius).

1. tighten lock(ing) bolt 19, regulate longitudinal rod 7, make the dead in line of its axis and round bottom dish 2.

2. regulate the relative position of transverse bar 9 and longitudinal rod 7, make two intersect vertical axis.

3. lining instrument is moved to an end of branch pipe(tube) 37, regulate the height of movable sleeve 8, promptly regulate the relative position of transverse bar 9 and longitudinal rod 7, the axis of transverse bar 9 is overlapped with the center of circle of branch pipe(tube) 37 end faces with the intersection point O of the intersect vertical axis of longitudinal rod 7, tighten guider screw 30,

bolt

28,33.

4. unclamp guider screw, the bolt of movable sleeve 13, regulate the position of the scriber 16 on the secondary longitudinal rod 12, make the axis of scriber 16 parallel with transverse bar and it is most advanced and sophisticatedly contacted with branch pipe(tube) 37 1 terminal A, the distance that the A point is ordered to O is the radius of trunk line.Tight a bolt then, scriber 16 is from the initial line of A point, and the gained curve is 1/2nd saddle line.

5. unclamp lock(ing) bolt 19, make turning cylinder 4 Rotate 180 degree, tighten lock(ing) bolt 19 again, scriber 16 is moved to the A chain-dotted line, 1/2nd saddle lines that get final product in addition.

Claims

1, the multi-functional lining instrument of a kind of single armed, comprise the magnetic base, dial 3,5,8,14, longitudinal rod 7, secondary longitudinal rod 12, transverse bar 9, whirligig, articulated mounting and chalker, the magnetic base that is characterised in that of the present utility model is made up of magnetic post 1 and round bottom dish 2, magnetic post 1 is evenly distributed on the lower plane of round bottom dish 2, can drive longitudinal rod 7 rotates 360 degree around the magnetic base axis turning cylinder 4, ball bearing 21 is installed in the core of the dial 3 of the round bottom dish 2 and indication longitudinal rod 7 anglecs of rotation, turning cylinder 4 tops are connected to the angle axle 6 that longitudinal rod 7 is radially rotated in perpendicular to the plane of angle axle 6, jointed shaft 23, one in longitudinal rod 7 cover can move up and down and around the movable sleeve 8 of its rotation along its axis, 180 degree dials 10 are housed on the movable sleeve 8, the transverse bar 9 that can rotate 180 degree around the axis of bolt 33 is removably mounted on movable sleeve 8, the other end of transverse bar 9 is connected to the angle axle 11 that can radially rotate, and overlap one and move and around the movable sleeve 13 of its rotation along transverse bar 9 axis, the secondary longitudinal rod 12 that can rotate 180 degree around the bolt axis is housed, angle axle 15 and chalker that secondary longitudinal rod 12 another terminations can radially be rotated on the movable sleeve 13.

2, lining instrument as claimed in claim 1 is characterized in that chalker is scriber 16 or cutting torch.

3, lining instrument as claimed in claim 1 is characterized in that the axial restraint of movable sleeve 8 on longitudinal rod 7 with bolt 28, and is radially fixing with guider screw 30.

4, lining instrument as claimed in claim 1 is characterized in that the axial restraint bolt of movable sleeve 13 on transverse bar 9, radially fixedly uses guider screw.

5, lining instrument as claimed in claim 1 is characterized in that longitudinal rod 7 and transverse bar 9 are provided with the scale of indication transverse bar 9 and secondary longitudinal rod 12 positions.

6, lining instrument as claimed in claim 1 is characterized in that on the movable sleeve 8 numeric display unit being installed.