CN2157873Y

CN2157873Y - Multi-purpose ellipsograph

Info

Publication number: CN2157873Y
Application number: CN 93233721
Authority: CN
Inventors: 李宏全
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-14
Filing date: 1993-04-14
Publication date: 1994-03-02
Anticipated expiration: 2003-04-14

Abstract

The utility model relates to a multi-purpose ellipsograph and belongs to a drawing instrument. The utility model comprises a left inner, a right inner, a left outer and a right outer arms, a left inner, a right inner, a left outer and a right outer R tablets, a telescoping rod, a left inner, a right inner, a left outer and a right outer cylinders, a point attachment with a drawing pen, a reel, a flexible thread, etc. Various ellipses are drawn through the distance between the left inner, the right inner, the left outer and the right outer arms and the left inner, the right inner, the left outer and the right outer R tablets. The telescoping rod is pushed down through a compressing spring of the telescoping rod so that the left inner, the right inner, the left outer and the right outer arms and the left inner, the right inner, the left outer and the right outer R tablets are moved down so as to draw; when the left inner, the right inner, the left outer and the right outer arms and the left inner, the right inner, the left outer and the right outer R tablets are closed, the utility model can be used as a straight ruler and a protractor. The utility model has the advantages of simple structure, easy use, simple manufacture technology, low cost and one object with multi-function.

Description

Multi-purpose ellipsograph

The utility model relates to a kind of ellipsograph of plotter.

Chinese patent 90203732.3 discloses a kind of multipurpose elliptic instrument that adopts the bevel gear structure, but complex structure, it is convenient that use is owed, and manufacturing process is complicated, the cost height.

The purpose of this utility model is to avoid above-mentioned weak point among the prior art and provides a kind of simple in structure, and easy to use, manufacture craft is simple, and cost is low, can be used for the multipurpose ellipsograph at picture ellipse, circle, straight line, angle etc.

The purpose of this utility model realizes by following approach, about two outer arms and respectively with about two arms fuse about two outer R sheets, by two train wheel bridge clampings that connect through attachment screw, the upper end coincide and contacts, remain symmetry during two arm opening and closing to center line, two train wheel bridges are connected with connecting plate, connect knob on the connecting plate, suit expansion link compression spring in the knob.About lower plate is clamped two inner arms and respectively with about two inner arms fuse about two interior R sheets.About the contact that coincide mutually of two inner arms, remain symmetry during opening and closing to center line, be subjected to the expansion link of expansion link compression spring action to pass lower plate, connecting plate and left and right sides outer arm with about two inner arms be connected.The turn knob, two inner arms moved down about compression expansion link compression spring made, and can make compasses and use.About the upper limb of two outer arms connect tension spring.About on the outer arm through the corresponding respectively left and right sides inner/outer tube of installing of trip bolt, by dog screw paintbrush stitch body is installed respectively in the inner/outer tube of the left and right sides, the compression spring that acts on paintbrush stitch body is installed in the inner/outer tube of the left and right sides.On the R sheet reel is housed outside a left side, cover is around the location flexible wires in reel and on the paintbrush stitch body.

Multipurpose ellipsograph of the present utility model, paintbrush stitch body one end is a paintbrush, the other end is a stitch.The length scale is carved with above outer R sheet outside in a left side (or right), is carved with angle index above right (or left side) outer R sheet outside, when about outside R sheet when closing up, promptly mensurable and picture straight line and tolerance and picture angle.

The utility model has following advantage compared to existing technology: simple in structure, easy to use, do not adopt the bevel gear structure, and manufacturing process is simple, and cost is low, can be used for picture ellipse, circle straight line, angle etc., one-object-many-purposes.

The embodiment of multipurpose ellipsograph of the present utility model in conjunction with the accompanying drawings is described in further detail.

Fig. 1 multipurpose ellipsograph schematic diagram (specification digest accompanying drawing)

Fig. 2 multipurpose ellipsograph right side view

Fig. 3 multipurpose ellipsograph left side view

As shown in Figure 1 to Figure 3, multipurpose ellipsograph of the present utility model, right outer R sheet 1 fuses with right outer arm 2, the outer R sheet 3 in a left side fuses with left outer arm 4, right outer arm 2 coincide with left outer arm 4 upper ends and contacts, preceding train wheel bridge 22 and back train wheel bridge 17 clampings by attachment screw 21 connects remain the symmetry to center line during opening and closing.The upper limb of right outer arm 2 and left outer arm 4 is equipped with tension spring 19.Be carved with the length scale above the right outer R sheet 1, the middle is zero point, is carved with angle index above the outer R sheet 3 in a left side, and the center is 90 to spend, shared zero point, when about two outer arms when closing up, promptly mensurable and picture straight line and angle.Preceding train wheel bridge 22 is connected with connecting plate 27 with back train wheel bridge 17.Knob 20 spinnings are on connecting plate 27.Right inner arm 5 fuses with right interior R sheet 6, and R sheet 7 fuses in an internal left arm 8 and the left side, and right inner arm 5 coincide with internal left arm 8 upper ends and contacts, and by lower plate 18 clampings, remains the symmetry to same center line during opening and closing.The expansion link 15 that connects right inner arm 5 and internal left arm 8 passes lower plate 18 and connecting plate 27 and right outer arm 2 and left outer arm 4, with expansion link compression spring 16 effects that are installed in the knob 20, turn knob 20, expansion link compression spring 16 is about to expansion link 15 and releases, and inside and outside two inner arms can be made compasses and use.Right urceolus 9, left urceolus 12, right inner core 10, left inner core 11 are installed through trip bolt 25 respectively in lower end at right outer arm 2, left outer arm 4, right inner arm 5, internal left arm 8.In right urceolus 9, left urceolus 12, right inner core 10, left inner core 11, be set with compression spring 24 and spring 24 effect by compression through the fixing paintbrush stitch body 23 of suit of dog screw 26.Compression spring 24 moves freely paintbrush stitch body 23 among a small circle, make paintbrush stitch body 23 keep contacting with the good of paper.Reel 13 is installed on the R sheet 3 outside a left side, and cover is around location flexible wires 14 in reel 13 and on the paintbrush stitch body 23.

Claims

1, a kind of multipurpose ellipsograph, it comprises right outer arm (2), the right outer R sheet (1) that fuses with right outer arm (2), upper end and the identical left outer arm (4) that contacts in right outer arm (2) upper end, with left outer arm (4) fuse a left side outer R sheet (3), the right urceolus (9) that is connected with right outer arm (2) lower end, the left urceolus (12) that is connected with left outer arm (4) lower end, clamp the back train wheel bridge (17) and the preceding train wheel bridge (22) of right outer arm (2) and left outer arm (4), the attachment screw (21) that connects back train wheel bridge (17) and preceding train wheel bridge (22), be contained in the paintbrush stitch body (23) in right urceolus (9) and the left urceolus (12), with the connecting plate (27) that is connected with preceding train wheel bridge (22) of back train wheel bridge (17), the knob (20) that is connected with connecting plate (27), it is characterized in that: suit passes the expansion link (15) and the expansion link compression spring (16) of connecting plate (27) in knob (20), the lower plate (18) that is connected with expansion link (15), right inner arm (5) and internal left arm (8) that be connected with lower plate (18) and that coincide and contact mutually, with right inner arm (5) fuse right in R sheet (6), with internal left arm (8) fuse a left side in R sheet (7), the right inner core (10) that is connected with right inner arm (5) lower end, the left inner core (11) that is connected with internal left arm (8) lower end, the reel (13) that is connected with R sheet (3) outside the left side, the flexible wires (14) of cover in the reel (13) and on the paintbrush stitch body (23) is installed in the tension spring (19) of right outer arm (2) and left outer arm (4) upper limb.

2, multipurpose ellipsograph according to claim 1 is characterized in that: in trip bolt (25) is fixed on right urceolus (9) on right outer arm (2), left outer arm (4), right inner arm (5), the internal left arm (8), left urceolus (12), right inner core (10), left inner core (11), be equipped with the compression spring (24) that acts on paintbrush stitch body (23) and above the dog screw (26) of control paintbrush stitch body (23) shift position is housed.

3, multipurpose ellipsograph according to claim 1 and 2 is characterized in that paintbrush stitch body (23) one ends are paintbrush, and the other end is a stitch.

4, multipurpose ellipsograph according to claim 1 is characterized in that: the length scale is carved with above the outer R sheet outside in a left side (or right), is carved with angle index above right (or left side) R sheet outside.