CN202448592U

CN202448592U - Multifunctional compasses

Info

Publication number: CN202448592U
Application number: CN2012200819673U
Authority: CN
Inventors: 陈科
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-24
Filing date: 2012-02-24
Publication date: 2012-09-26
Anticipated expiration: 2022-02-24

Abstract

A pair of multifunctional compasses comprises a grip, a center compass leg, a drawing compass leg and the like and is mainly characterized in that an inverted U-shaped foot is arranged at the bottom of the drawing compass leg; a connecting part is arranged on the inverted U-shaped foot; a pen core fixing part and a sleeve are arranged at the connecting part; a screw rod is arranged on the wall of a casing of the pen core fixing part; and a pressure piece and a spring are arranged in the casing and are connected in series through a shaft pin and positioned movably. When a pen core is inserted in the casing and the screw rod is screwed, the head of the screw rod pushes the pressure piece to fix the pen core, and then the compasses can be used for drawing with the pen core; and when the screw rod is unscrewed, the spring bounces off the pressure piece, and then the pen core can be taken out. Another screw rod is arranged on the wall of the sleeve and is movably connected with a fastening piece arranged in the sleeve; after a thin pen such as a pencil or a thick pen such as a marker pen is inserted in the sleeve, the screw rod is screwed, the screw rod pushes the fastening piece to fix the pen in the sleeve, and then the compasses can be used for drawing with the thin pen or the thick pen; and the pen core on the pen core fixing part and the thin pen or the thick pen on the sleeve can be used for drawing at the same time.

Description

Multifunctional compass

Technical field the utility model is and a kind of drawing instrument, especially relates to a kind of multifunctional compass.

The compasses that background skill wood is present; Can only the independent installation pencil on the drawing gauge leg etc. thick pens such as thin pen type or marking pen type or various pen core class; Can not be simultaneously or successively be installed on the drawing gauge leg with above-mentioned tool, people will be simultaneously together or during first post-plot, must prepare two compasses with thick pen and pen core; Not only use inconvenience, but also increased use cost.

Summary of the invention the utility model purpose provides a kind of applicable multiple thick pen, thin pen, pen core and uses multifunctional compass more easily.

The utility model purpose is achieved in that multifunctional compass; Comprise handle, centre gauge leg, stitch, drawing gauge leg; Its design feature is to be provided with inverted U-shaped pin in drawing gauge leg bottom; On inverted U-shaped pin, attaching parts are installed, on attaching parts, are separately installed with pen core fixed part and sleeve pipe.

One of them pin of described inverted U-shaped pin is provided with a screwed hole, on another pin, is provided with a screw hole, and is furnished with and screwed hole and the supporting screw rod with handles of screw hole, and inverted U-shaped foot bottom is circular arc.

Be respectively equipped with a rectangular big jack and a rectangular little jack on the described attaching parts, two jacks are adjacent; On big jack one sidewall and little jack one sidewall, be respectively equipped with the screwed hole of outside protrusion; Be provided with rotating handle in attaching parts one side, the width of this rotating handle is corresponding with the width of inverted U-shaped pin groove; On this rotating handle, be provided with screw hole, the rotating handle head is circular arc.

Described its housing of pen core fixed part is a rectangular tube, is provided with an outwards screwed hole of protrusion at this rectangular tube one side pipe wall center, and screw rod with handles is installed on this screwed hole; Be provided with a little inserting handle with the corresponding side pipe wall of screwed hole outside, the outside of this little inserting handle is vertical plane from top to bottom, and little inserting handle inboard inwardly slightly is the inclined-plane from top to bottom, and this little inserting handle is corresponding with the little jack on the attaching parts; The rectangular tube housing is built-in with clamping piece, and centre, this clamping piece outside contacts with screw head on being installed in screwed hole; The clamping piece four corners position is provided with four small sircle holes; Be provided with screwed hole one side pipe wall four corners position and be provided with four small sircle holes; These four small sircle holes are corresponding with four small sircle holes on the clamping piece; Be provided with little inserting handle one side pipe wall four corners position and be provided with four small sircle holes, these four small sircle holes also with clamping piece on four small sircle holes corresponding; Clamping piece inner face and be provided with between the little inserting handle one side pipe wall inner face four springs are installed; Pass four small sircle holes that are provided with on screwed hole one side pipe wall and the clamping piece four corners position respectively by four pivot pins; Pass four spring centers again and be provided with four small sircle holes on the little inserting handle one side pipe wall four corners position, make clamping piece and spring obtain activity orientation; Be respectively equipped with one deck foam-rubber cushion at the clamping piece inner face with being provided with on the little inserting handle one side pipe wall inner face.

Described sleeve pipe is a kind of circular casing, is provided with a big inserting handle in the cover tube wall outside, and the outside of this big inserting handle is vertical plane from top to bottom, and big inserting handle inboard inwardly slightly is the inclined-plane from top to bottom, and this big inserting handle is corresponding with the big jack on the attaching parts; On the cover tube wall, be provided with an outwards screwed hole of protrusion, this screwed hole is in the center between the sleeve pipe top and bottom, is provided with one with the corresponding tube wall of screwed hole the screw special hole is installed; Screw rod with handles is installed on the screwed hole, and this screw rod center is provided with not have and penetrates screwed hole, and this nothing penetrates screwed hole and is furnished with screw; Sleeve pipe is built-in with the arc connecting plate; This connecting plate centre is outwards concavo-convex; This concavo-convex position is corresponding with the screwed hole on the cover tube wall; Jog potential head portion external diameter is less than the diameter of screwed hole, and concavo-convex position is provided with a screw hole, with nothing penetrate the supporting screw of screwed hole pass behind the screw hole be installed in screwed hole on the nothing at screw rod center penetrate screwed hole and be connected; Make connecting plate and screw rod obtain flexibly connecting, connecting plate and screw head leave minim gap; Connecting plate inner surface upper and lower part and be respectively equipped with spongy layer with the inboard upper and lower part of the inboard corresponding cover tube wall of connecting plate.

The periphery of said compasses handle is with the lengthening handle, and the handle head is provided with outer silk screw thread, lengthening handle head be provided with the internal thread screw thread and with the supporting engagement of outer silk screw thread of handle head.

The beneficial effect of the utility model: a kind of compasses both can adopt thick pen (marking pen, watercolor pencil etc.), thin pen (pencil, ball pen, water-color paintbrush, chalk etc.) to draw; Can adopt pen core (pen cores such as pencil, ball pen, water-color paintbrush) to draw again; And pen core can also be installed on the compasses and draw (also can be taken up in order of priority drawing) simultaneously with thick pen or thin pen; Enlarge the use crowd, expanded the scope of application, improved the practical value of compasses; These compasses are also very convenient quick to the transposing of various pens, pen core.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is inverted U-shaped leg structure and block diagram.

Fig. 3 is provided with rotating handle one side sketch map for attaching parts.

Fig. 4 does not have rotating handle one side sketch map for attaching parts.

Fig. 5 is a pen core fixed part cross-sectional schematic.

Fig. 6 is the perspective view of Fig. 5.

Fig. 7 is the sleeve pipe perspective view.

Fig. 8 is the cross-sectional schematic of Fig. 7.

Fig. 9 is each component-assembled decomposing schematic representation of Fig. 7.

Figure 10 for the compasses handle with add long handle and do not have and extend the combination sketch map.

Figure 11 for the compasses handle with add long handle and be connected extension sketch map afterwards.

Figure 12 is thin the working state schematic representation that is installed on the compasses.

Figure 13 is the pen core and thick pen while working state schematic representation that is installed on the compasses.

Figure 14 is thick the view that works independently in pen core rising back.

The specific embodiment combines accompanying drawing that the utility model is described in detail at present.

Like Fig. 1～shown in Figure 14; Handle, 11. add long handle, 2. centre gauge leg, 21. stitch, 3. drawing gauge leg, 31. inverted U-shaped pin, 32.A screw rod (are inverted U-shaped pin screw rod; Down together), the 33.A screwed hole (is inverted U-shaped pin screwed hole; Down together), the 34.A screw hole (is inverted U-shaped pin screw hole; Down together), 4. attaching parts, 41. big jacks, 42. little jacks, 43. rotating handles, 44.B screwed hole (are big jack screwed hole; Down with), 45.C screwed hole (be little jack screwed hole, down with), 46.B screw hole (be the rotating handle screw hole, down with), 5. pen core fixed part, 51. clamping pieces, 52. springs, 53. pivot pins, 54.D screwed hole (are pen core fixed part screwed hole; Down together), the 55.B screw rod (is a pen core fixed part screw rod; Down with), 56. foam-rubber cushions, 57. little inserting handles, 6. sleeve pipe, 61. connecting plates, 62. screws, 63. screw holes, 64.E screwed hole (be the casing threads hole, down with), 65.C screw rod (be the sleeve pipe screw rod, down with), 66. do not have penetrate screwed hole, 67. spongy layers, 68. are installed screw special hole, 69. big inserting handles.

The utility model multifunctional compass; Comprise handle 1, centre gauge leg 2, stitch 21, drawing gauge leg 3; Its design feature is as shown in Figure 1; Be provided with inverted U-shaped pin 31 in drawing gauge leg 3 bottoms, on inverted U-shaped pin 31, attaching parts 4 be installed, on attaching parts 4, be separately installed with pen core fixed part 5 and sleeve pipe 6.Pen core fixed part 5 is used for fixing pen cores such as pencil, ball pen, water-color paintbrush; 6 of sleeve pipes are thick pen such as marking pen, watercolor pencil fixedly, also fixing thin pen such as pencil, ball pen, water-color paintbrush, writing brush, chalk, wax crayon.

Described inverted U-shaped pin 31 is as shown in Figure 2; Be on these inverted U-shaped pin 31 one of them pin, to be provided with an A screwed hole 33; On another pin, be provided with A screw hole 34, and be furnished with the with handles A screw rod 32 supporting with A screwed hole 33 and A screw hole 34, inverted U-shaped pin 31 bottoms are circular arc.

Described attaching parts 4 are like Fig. 3, shown in Figure 4, are that to be respectively equipped with a rectangular big jack 41 in these attaching parts 4 adjacent with 42, two jacks of a rectangular little jack; On big jack 41 1 sidewalls and little jack 42 1 sidewalls, be respectively equipped with the B screwed hole 44 and C screwed hole 45 of outside protrusion.Be provided with rotating handle 43 in attaching parts 4 one sides, the width of this rotating handle 43 is corresponding with the width of inverted U-shaped pin 31 grooves; On this rotating handle 43, be provided with B screw hole 46, rotating handle 43 heads are circular arc.

Rotation of the connecting member 4 Chin Shih lever 43 into the inverted U-shaped groove in the middle of the foot 31, the rotary lever 43 on the screw hole 46 B of inverted U-shaped legs 31 and the A and A threaded screw holes 34 aligned with holes 33, A screw 32 will successively pass through A screw hole 34, B-screw hole 46 after the A threaded hole 33 is connected and properly tightened, the same time, by rotating the handle 43 is turned up and down to adjust the angle of connecting member 4, the connecting member 4 Adjust angle, the A screw 32 is completely screwed in the threaded hole 33 A, the connecting member 4 is firmly fixed to the inverted U-shaped pin 31.

Described pen core fixed part 5 is like Fig. 5, shown in Figure 6; Its housing is a rectangular tube; Be provided with an outwards D screwed hole 54 of protrusion at this rectangular tube one side pipe wall center, B screw rod 55 with handles is installed on the D screwed hole 54, be provided with a little inserting handle 57 with D screwed hole 54 corresponding side pipe wall outsides; This little inserting handle 57 is corresponding with the little jack 42 on the attaching parts 4; The outside of little inserting handle 57 is vertical plane from top to bottom, and little inserting handle 57 inboards inwardly slightly are the inclined-plane from top to bottom, makes little inserting handle 57 from omiting attenuation gradually down to following its thickness; Little inserting handle 57 plug positions are slightly thinner than other position of inserting handle, become closely reliable after making little inserting handle 57 and little jack 42 on the attaching parts 4 being connected.

The rectangular tube housing is built-in with clamping piece 51, this centre, clamping piece 51 outside be installed in the D screwed hole on 54 B screw rod 55 heads contact.Clamping piece 51 four corners positions are provided with four small sircle holes, are provided with D screwed hole 54 1 side pipe wall four corners positions and are provided with four small sircle holes, and these four small sircle holes are corresponding with four small sircle holes on the clamping piece 51; Be provided with little inserting handle 57 1 side pipe wall four corners positions and be provided with four small sircle holes, these four small sircle holes also with clamping piece 51 on four small sircle holes corresponding.Clamping piece 51 inner faces and be provided with between the little inserting handle 57 1 side pipe wall inner faces four springs 52 are installed; Pass four small sircle holes that are provided with on D screwed hole 54 1 side pipe walls and clamping piece 51 four corners positions respectively by four pivot pins 53; Pass spring 52 centers again and be provided with four small sircle holes on the little inserting handle 57 1 side pipe wall four corners positions, make clamping piece 51 and spring 52 obtain activity orientation.Be respectively equipped with one deck foam-rubber cushion 56 at clamping piece 51 inner faces with being provided with on the little inserting handle 57 1 side pipe wall inner faces, be used to protect pen cores such as pencil, make pen core such as pencil not easily broken broken.

The little inserting handle 57 of pen core fixed part 5 is inserted in the little jack 42 of attaching parts 4; Install screw also with this screw means at C screwed hole 45; Make this screw head press closer little inserting handle 57 1 sides, thereby pen core fixed part 5 and attaching parts 4 are closely connected reliably.Pen cores such as pencil are inserted through in the rectangular tube housing, and after adjusting the pen core height, turn B screw rod 55 promotes clamping piece 51 by this screw head and moves ahead, and until pen cores such as pencil are fixed reliably, compasses are that pen core such as available pencil is drawn.As to change pen core, and can B screw rod 55 be unscrewed, under the effect of spring 52, clamping piece 51 is rebounded to be resetted, just pen cores such as pencil can take out and change to other pen core in the rectangular tube housing.

Described sleeve pipe 6 is like Fig. 7～shown in Figure 9; It is a kind of circular casing; Be provided with a big inserting handle 69 in the sleeve pipe 6 tube walls outside, this big inserting handle 69 is corresponding with the big jack 41 on the attaching parts 4, and the outside of big inserting handle 69 is vertical plane from top to bottom; Big inserting handle 69 inboards inwardly slightly are the inclined-plane from top to bottom; Make its thickness slightly attenuation gradually from top to bottom of big inserting handle 69, the plug position of big inserting handle 69 then can be slightly thinner than other position of inserting handle, becomes reliably tight after making big inserting handle 69 and big jack 41 on the attaching parts 4 being connected.

On sleeve pipe 6 tube walls, be provided with an outwards E screwed hole 64 of protrusion, this E screwed hole 64 is in the center between sleeve pipe 6 top and bottom, is provided with one with the corresponding tube wall of E screwed hole screw special hole 68 is installed; C screw rod 65 with handles is installed on the E screwed hole 64, and these C screw rod 65 centers are provided with not have and penetrate screwed hole 66, this nothing penetrate screwed hole 66 can with screw 62 supporting engagements; Be built-in with arc connecting plate 61 at sleeve pipe 6; These connecting plate 61 centres are outwards concavo-convex; This concavo-convex position is corresponding with the E screwed hole 64 on sleeve pipe 6 tube walls, and jog potential head portion external diameter is less than the diameter of E screwed hole 64, and jog potential head portion can put in E screwed hole 64; Concavo-convex position is provided with a screw hole 63, penetrates screwed hole 66 with nothing that nothing penetrates C screw rod 65 centers of screwed hole 66 supporting screws 62 on passing screw hole 63 back and being installed in E screwed hole 64 and is connected; Pass with screwdriver and screw special hole 68 to be installed screw 62 is tightened on not have penetrates on the screwed hole 66; Screw 62 was fixed on the C screw rod 65 firmly; Connecting plate 61 and C screw rod 65 are reliably flexibly connected, and connecting plate 61 leaves minim gap with C screw rod 65 heads.After screw 62 was screwed fully, its afterbody had been retracted within the recess at connecting plate 61 central protrusion positions, and promptly screw 62 afterbodys can not protrude the inner surface of connecting plate 61, thereby can not influence connecting plate fixing pen.Coping screw 62 is slightly less than screw hole 63, so connecting plate 61 can not have influence on the rotation of screw 62, C screw rod 65, and the rotation through C screw rod 65 then can drive moving around of connecting plate 61.

Connecting plate 61 inner surface upper and lower parts and be respectively equipped with spongy layer 67 with the inboard upper and lower part of inboard corresponding sleeve pipe 6 tube walls of connecting plate 61 are to reduce the damage that connecting plate 61 and pipe box 6 tube walls especially cause chalk etc. a tool, in addition; Chalk is to be cone shape cylinder pen, and when receiving connecting plate 61 fixedly, chalk is stressed irregular; Disconnected broken easily, spongy layer 67 has been arranged, chalk is when reinforcing is stressed; Can obtain some bufferings; Can make stressed equilibrium more again, chalk can be fixed more reliably, and reduce breaking rate.

Big inserting handle on the sleeve pipe 6 69 is inserted in the big jack 41 of attaching parts 4, install screw and, make this screw head press closer big inserting handle 69 1 sides, thereby sleeve pipe 6 and attaching parts 4 are closely connected reliably this screw means at B screw hole 44.Thin pens such as pencil are inserted through sleeve pipe 6; Behind the height of adjusting thin pen such as pencil, promote connecting plate 61 in the time of turn C screw rod 65 and move ahead, fix pen reliably until this connecting plate 61; Compasses are that thin pen such as available pencil is drawn, and are shown in figure 12.When laying down thin on the sleeve pipe 6,, connecting plate 61 is unclamped, can thin pen be taken out from sleeve pipe 6 as long as unscrew C screw rod 65 like need.With above-mentioned same method of operating, also can thick pen such as marking pen be interted and is fixed in the sleeve pipe 6, compasses are that thick pen such as available marking pen is drawn.Be a bit larger tham thick pens such as marking pen because of sleeve pipe 6, so the stroke that 65 turns of C screw rod advance only needs very short can thick pens such as marking pen being fixed; And sleeve pipe 6 is when inserting thin of pencils etc., and the 65 turn propelling strokes that will grow slightly of C screw rod can be fixed thin of pencil etc.

The pen core that is installed on the pen core fixed part 5 can be worked with the thick pen or the thin pen that are installed on the sleeve pipe 6 simultaneously; Shown in figure 13, water-color paintbrush pen core and marking pen can be drawn simultaneously, for some special drawing provide convenience.As as long as the water-color paintbrush pen core is drawn, need only the marking pen rising from paper; Otherwise, pen core is raise behind paper, marking pen can be drawn separately, and is shown in figure 14.Pen core fixed part 4 is applicable to multiple pen cores such as pencil, ball pen, water-color paintbrush, and transposing is convenient; Sleeve pipe 6 then is applicable to the thin pen and the thick pen of plurality of specifications such as wax crayon, chalk, writing brush, spread pen, pencil, ball pen, water-color paintbrush and marking pen, mark's pen, watercolor pencil, and calls very convenient.When drawing, as adjusting the angle of pen core or pen, can unscrew A screw rod 32, rotate the required angle that rotating handle 43 is adjusted pen core and pen up and down, the A screw rod 32 of screwing again after finishing gets final product.

Like Figure 10, shown in Figure 11, the utility model is with lengthening handle 11 in compasses handle 1 periphery, and handle 1 head is provided with outer silk screw thread, add long handle 11 heads be provided with the internal thread screw thread and with the supporting engagement of outer silk screw thread of handle 1 head; Promptly be enclosed within handle 1 up when peripheral when adding long handle 11 heads, the two screw thread through head carries out secure fixation, and people can operate compasses through adding long handle; When adding long handle 11 heads down and with after handle 1 head reliably is connected through screw thread, compasses handle 1 has just extended upward about 80% length.When long pen such as writing brushes being installed when sleeve pipe 6 drawing, original compasses handle 1 gets up not too conveniently because of short operation too, and adds long handle 11 through connection, with original handle 1 prolong raise after, operating compasses will be more convenient.

Claims

1. multifunctional compass; Comprise handle (1), centre gauge leg (2), stitch (21), drawing gauge leg (3); It is characterized in that: be provided with inverted U-shaped pin (31) in drawing gauge leg (3) bottom; Attaching parts (4) are installed on inverted U-shaped pin (31), on attaching parts (4), are separately installed with pen core fixed part (5) and sleeve pipe (6).

2. multifunctional compass as claimed in claim 1; It is characterized in that: one of them pin of described inverted U-shaped pin (31) is provided with a screwed hole (33); On another pin, be provided with a screw hole (34); And be furnished with and screwed hole (33) and the supporting screw rod with handles (32) of screw hole (34), inverted U-shaped pin (31) bottom is circular arc.

3. multifunctional compass as claimed in claim 1 is characterized in that: be respectively equipped with a rectangular big jack (41) and a rectangular little jack (42) on the described attaching parts (4), these two jacks are adjacent; On big jack (41) one sidewalls and little jack (42) one sidewalls, be respectively equipped with screwed hole (44), (45) of outside protrusion; Be provided with rotating handle (43) in attaching parts (4) one sides, the width of this rotating handle (43) is corresponding with the width of inverted U-shaped pin (31) groove; On this rotating handle (43), be provided with screw hole (46), rotating handle (43) head is circular arc.

4. multifunctional compass as claimed in claim 1; It is characterized in that: its housing of described pen core fixed part (5) is a rectangular tube; Be provided with an outwards screwed hole (54) of protrusion at this rectangular tube one side pipe wall center; Screw rod with handles (55) is installed on this screwed hole (54), is provided with a little inserting handle (57) with the corresponding side pipe wall of screwed hole (54) outside, the outside of this little inserting handle (57) is vertical plane from top to bottom; Little inserting handle (57) inboard inwardly slightly is the inclined-plane from top to bottom, and this little inserting handle (57) is corresponding with the little jack (42) on the attaching parts (4); The rectangular tube housing is built-in with clamping piece (51), and centre, this clamping piece (51) outside contacts with screw rod (55) head on being installed in screwed hole (54); Clamping piece (51) four corners position is provided with four small sircle holes; Be provided with screwed hole (54) one side pipe wall four corners positions and be provided with four small sircle holes; These four small sircle holes are corresponding with four small sircle holes on the clamping piece (51); Be provided with little inserting handle (57) one side pipe wall four corners positions and be provided with four small sircle holes, these four small sircle holes also with clamping piece (51) on four small sircle holes corresponding; Clamping piece (51) inner face and be provided with between little inserting handle (57) the one side pipe wall inner faces four springs (52) are installed; Pass four small sircle holes that are provided with on screwed hole (54) one side pipe walls and clamping piece (51) four corners position respectively by four pivot pins (53); Pass four springs (52) center again and be provided with four small sircle holes on little inserting handle (57) the one side pipe wall four corners positions, make clamping piece (51) and spring (52) obtain activity orientation; Be respectively equipped with one deck foam-rubber cushion (56) at clamping piece (51) inner face with being provided with on little inserting handle (57) the one side pipe wall inner faces.

5. multifunctional compass as claimed in claim 1; It is characterized in that: described sleeve pipe (6) is a kind of circular casing; Be provided with a big inserting handle (69) in sleeve pipe (6) the tube wall outside, the outside of this big inserting handle (69) is vertical plane from top to bottom, and big inserting handle (69) inboard inwardly slightly is the inclined-plane from top to bottom; This big inserting handle (69) is corresponding with the big jack (41) on the attaching parts (4); On sleeve pipe (6) tube wall, be provided with an outwards screwed hole (64) of protrusion, this screwed hole (64) is in the center between the sleeve pipe top and bottom, is provided with one with the corresponding tube wall of screwed hole (64) screw special hole (68) is installed; Screw rod with handles (65) is installed on the screwed hole (64), and this screw rod (65) center is provided with not have and penetrates screwed hole (66), and this nothing penetrates screwed hole (66) and is furnished with screw (62); Sleeve pipe (6) is built-in with arc connecting plate (61); This connecting plate (61) centre is outwards concavo-convex; This concavo-convex position is corresponding with the screwed hole (64) on sleeve pipe (6) tube wall; Jog potential head portion external diameter is less than the diameter of screwed hole (64), and concavo-convex position is provided with a screw hole (63), penetrates screwed hole (66) with nothing that nothing penetrates screw rod (65) center of the supporting screw (62) of screwed hole (66) on passing screw hole (63) back and being installed in screwed hole (64) and is connected; Make connecting plate (61) and screw rod (65) obtain flexibly connecting, connecting plate (61) leaves minim gap with screw rod (65) head; Connecting plate (61) inner surface upper and lower part and be respectively equipped with spongy layer (67) with the inboard upper and lower part of the inboard corresponding sleeve pipe of connecting plate (61) (6) tube wall.

6. multifunctional compass as claimed in claim 1; It is characterized in that: the periphery of said compasses handle (1) is with lengthening handle (11); Handle (1) head is provided with outer silk screw thread, add long handle (11) head be provided with the internal thread screw thread and with the supporting engagement of outer silk screw thread of handle (1) head.