CN2042800U - Multipurpose drawing instrument - Google Patents

Abstract

The utility model is composed of the connection of two straightedges through a connecting piece. One end of one straightedge is provided with a center of circle needle, and one end of the other straightedge is provided with a chalk clip or a clamping pencil core device. The connecting piece is a protractor. The utility model has all functions of the general drawing instruments of the straightedge, a set square, the protractor, a compasses, etc. The drawing is convenient and accurate, and the efficiency and the quality of the drawing are increased.

Description

Multipurpose drawing instrument

The utility model belongs to drawing appliance.

Present drawing appliances such as the ruler that uses, set square, protractor, garden rule, function singleness not only, and when drawing some figures not only inconvenience but also inaccurate.For example, when drawing a limit at known number of degrees angle, need measure earlier with protractor and get ready, and then just can be drawn as with ruler or set square.And general protractor only divides degree of being carved into, and is impossible so will draw the following angle of degree of being accurate to.And for example, when drawing parallel lines, need with two set squares against picture, if lean on to such an extent that badly will make the parallel lines inaccuracy of drawing, and, draw remote parallel lines and just can't carry out against picture with two set squares.

The purpose of this utility model is that a kind of multi-functional drawing appliance will be provided, and makes drawing more convenient accurately.

The utility model is as a kind of structure of drawing on the blackboard.As Fig. 1, constitute by connector (1), ruler (2), ruler (3).Connector (1) is as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5.The matrix of connector (1) is a lamellar body (0) that the arc limit is arranged, and there is axle (7) center on the following arc limit of lamellar body (0), and lamellar body (0) is following to also have cross section to become rectangle and identical, two protrusions (8) and (9) of center on same straight line.Form breach (10) between two protrusions, the centre of breach (10) porose (11).The one garden box (12) concentric with the arc limit arranged above the lamellar body (0), gravity pin (13) is housed in the garden box (12).The axle of gravity pin (14) is contained in the centre bore of lamellar body arc centre bore and lucite lid (15), and gravity pin (13) is rotated around axle (14) center.Gravity pin (13) always points to lamellar body (0) sloping floor direction under the gravity effect.The one half garden arc groove (16) concentric with axle (7) arranged on the lamellar body (0).Angle index (17) and (18) are arranged on the lamellar body.Ruler (2) is as Fig. 7, Fig. 8, shown in Figure 9.Ruler (2) is the rod member of a π tee section, and center has groove (19) above it, and the amount of having length scale all on its side (20) and (21), its inner chamber are provided with the reinforcement (22) at discontented top.On two not far reinforcements of ruler (2) two ends, be respectively equipped with box, the rubber bumper (23) and (24) that slightly protrude from ruler (2) bottom are being housed respectively in the box.Ruler (3) is as Figure 10, Figure 11, shown in Figure 12.Ruler (3) also is a π shape cross section rod member, one end porose (25) and (26), and its other end has groove (27), scale of the amount of having length all on its side (31) and (32), its inner chamber is provided with reinforcement (28).Also have arc to protrude (29) above the ruler (3), its inner arc center is center, hole (25), and its inner arc radius is little greater than connector (1) lamellar body (0) arc limit radius.Protrude (29) and highly equal connector (1) lamellar body (0) thickness.Arc protrudes on (29) radially angle index (30), the starting line of angle index (30) is parallel to ruler (3) side (31) and (32) after prolonging, and crossing with hole (25) center line, angle index (30) five equilibrium 10 lattice, every lattice are represented 0.9 degree.

Insert in the groove (19) of ruler (2) protrusion (8) of connector (1) and (9), screw (33) passes the groove (19) of ruler (2) from bottom to up, the hole (11) of connector (1), rubber washer (34), packing ring (35) match with nut (36), and ruler (2) and connector (1) are connected together.The head of screw (33) also just in time is placed in the breach (10) of connector (1) under the groove (19) of ruler (1) like this.Unclamp nut (36) connector (1) is slided along ruler (2), fastening nut (36) can be locked in connector (1) on the ruler (2).The hole (25) of ruler (3) is enclosed within on the axle (7) of connector (1), a square head screw passes the hole (26) of ruler (3) from bottom to up, half garden arc groove (16) of connector (1) matches with nut (37), and ruler (3) and connector (1) are coupled together.Unclamp nut (37), ruler (3) is rotated around connector (1) axle (7), fastening nut (37) can be locked in ruler (3) on the connector (1).After connector (1) connects with ruler (2) and ruler (3), the bottom (38) of rubber bumper (23) and (24) bottom and ruler (3) just is attached to the bottom (38) of the bottom of rubber bumper (23) and (24) and ruler (3) on the blackboard when drawing straight line class figure and carries out in same plane.The purpose that rubber bumper (23) and (24) are set is to make ruler (2) adapt to slightly uneven blackboard, and makes ruler (2) be difficult for skidding on blackboard, draws accurately thereby make.After ruler (3) connected with connector (1), the angle index (30) of angle index of connector (18) and ruler (3) was equal close.The angle of ruler (2) and ruler (3) can cooperate by angle index (18) and angle index (30) to be read, because the every little lattice of angle index (18) are represented 1 degree, the every lattice of angle index (30) are represented 0.9 degree, and two angle indexs match and can make angular readings be accurate to ten/once.Ruler (2) side (20) and ruler (3) side (32) all are about the chalk radius with the distance between center line of connector (1) axle (7), and the center line of connector (1) axle (7) can be passed through in the straight line center of drawing against these two sides like this.When connector (1) was locked in ruler (2) middle part, owing on the ruler (3) inclined-plane (39) is arranged, therefore, ruler (3) can rotate about 150 degree around connector (1) axle (7).When connector (1) is locked in ruler (2) when end end in inclined-plane (40) is arranged, ruler (3) can rotate 180 degree around connector (1) axle (7).When ruler (3) changeed with ruler (2) in line, the end face (41) of ruler (2) and the face (42) of ruler (3) contacted, and the side (21) of ruler (2) and the side (31) of ruler (3) are in same plane.Screw (43) passes ruler (2) groove (19) and cooperates with the screw of garden heart pin (44), and garden heart pin (44) is locked in the inside casing of ruler (2), handles screw (43) and garden heart pin is stretched out or the inside casing of retraction ruler (2).The screw that screw (45) passes on ruler (3) groove (27) and the chalk folder (46) matches, and chalk can be pressed from both sides in the inside casing that (46) be locked in ruler (3), handles screw (45) and chalk folder (46) is stretched out or the inside casing of retraction ruler (3).Also can load onto chalk folder (46) in fact in the end of ruler (2), and load onto garden heart pin (44) in the end of ruler (3).

The utility model in use, utilizes ruler (2), ruler (3) can draw straight line as this structure of drawing on the blackboard, can draw any angle and can measure length.When ruler (3) being changeed with ruler (2) in line, this structure can be made long ruler and can make teacher's pointer and use.Because the angle of ruler (2) and ruler (3) can be read from scale, therefore, utilize ruler (2), ruler (3) cooperation, can angulation and draw known number of degrees angle.Picture angle, angulation because cooperating, angle index (18) and angle index (30) can make the angle reading of ruler (2) and ruler (3) be accurate to ten/once again, so can be accurate to ten/once.Utilize ruler (2), the method that ruler (3) is drawn the angle has multiple, as connector (1) being locked in the middle part of ruler (2), the angle of ruler (2) and ruler (3) is transferred to the number of degrees that will draw the angle, draw the earlier limit at angle, with a side of ruler (3) against this edge, make the summit of the side (21) of ruler (2) against the angle, again against ruler (2) side (21), one can be drawn as the another side at angle, draw the angle, angulation also can be by ruler (2), gravity pin (13), angle index (17) cooperation is carried out, because gravity pin indicated direction on blackboard is constant, angle index (17) then rotates with the angle of ruler (2) in blackboard surface is different, gravity pin (13) was gone up the poor of the indication number of degrees at angle index (17) when the angle of two straight lines drawing against ruler (2) just equaled twice setting-out so, as long as guarantee this difference, just be the angle that to draw then against the angle that ruler (2) draws for will draw the number of degrees at angle.Gravity pin (13) is the number of degrees of being measured this angle in the number of degrees difference that angle index (17) upward refers to during against both sides, an angle with ruler (2).Locking ruler (3) is fixed on ruler (2) on the blackboard, and when connector (1) slided into any place of ruler (2), the straight line that draws against ruler (3) side all was parallel to each other.Because connector (1) is the cooperation of protrusion and groove with cooperating of ruler (2), so the angle of the ruler (3) of ruler (2) and locking is not moving will a variation, so the parallel lines that draw are accurate.As long as guarantee that the index of gravity pin (13) on angle index (17) is constant, the straight line that draws against the ruler (3) of ruler (2) or locking all is parallel lines, so can draw remote parallel lines.Stretch out garden heart pin (44) and accompany the chalk folder (46) of chalk, utilize ruler (2) and ruler (3) to make leg, this structure can be done garden rule and use can draw garden or garden arc.

The utility model is made up of connector (4), ruler (5), ruler (6) as shown in figure 13 as a kind of structure of drawing on the paper.Connector (4) is as Figure 15, Figure 16, shown in Figure 17.Ruler (5) is as Figure 18, Figure 19, shown in Figure 20.Ruler (6) is as Figure 21, Figure 22, shown in Figure 23.The cross section that slotted eye (48) the wedge head that wedge head screw (47) passes connector (4) enters connector (4) is in the breach (50) of trapezoidal protrusion (49), again half block (51) is also put into breach (50), to protrude then in the groove (52) of the wedge head of (49), wedge head screw (47) and the trapezoid cross section that half block (51) inserts ruler (5) in the lump, cooperate with wedge head screw (47) with nut (53).Fastening nut (53) is carried on the wedge head of wedge head screw (47), and the protrusion (49) of horizontal sliding half block (51) and connector (4) is pressed on groove (52) both sides of ruler (5), thereby connector (4) is locked on the ruler (5).Unclamping nut (53) can make connector (4) slide along ruler (5).The hole (54) of ruler (6) is enclosed within on the axle (55) of connector (4), square head screw (56) is passed the hole (57) of ruler (6) and the hole of compressing tablet (58) cooperates with nut (59), and the square toes of square head screw (56) enter in the square counterbore below the ruler (6).Fastening nut (59) is pressed on the connector (4) end of compressing tablet (58), and an end is pressed on the convex surface (60) of ruler (6), thereby ruler (6) is locked on the connector (4).Unclamping nut (59) can make ruler (6) rotate around the axle (55) of connector (4).The angle index (18) of the angle index (61) of connector (4) and the angle index (62) of ruler (6) and connector (1) is identical with angle index (30) principle of ruler (3), for no other reason than that connector (4) is less, so the every little lattice of angle index (61) can be represented 2 degree, every lattice 1.5 degree of angle index (62) five equilibrium three lattice of ruler (6), angle index (61) and angle index (62) match like this, can make the angle reading of ruler (5) and ruler (6) be accurate to 0.5 degree, as Figure 23, hole (54) part of ruler (6) is thinner, connector (4) like this, ruler (5), after ruler (6) connects together, this part and connector (4) axle (55) are all on the face (63) of ruler (5), therefore, can not influence connector (4) slides along ruler (5).Face (63) and (64) of ruler (5), the amount of having length scale all on the face (65) of ruler (6) and (66).Axle (55) center of the limit (67) of ruler (5) and the limit (68) of ruler (6) and connector (4) is distance slightly, can pass through axle (55) center of connector (4) after the line segment of drawing by these both sides is prolonged.Garden heart pin (69) penetrates in the hole of screw (70), screw (70) passes the hole (71) of ruler (5) and garden heart pin (69) is contained in the groove (72) of ruler (5), cooperates with screw (70) and garden heart pin (69) can be locked in the groove (72) with nut (73).Pencil-lead (74) is put into the shallow slot (75) of ruler (6), push down with compressing tablet (77) that pencil-lead (74) passes the hole (82) of ruler (6) from bottom to up with screw (76) and the hole of compressing tablet (77) cooperates with nut (78), pencil-lead (74) is pressed in the shallow slot (75) of ruler (6), also can load onto in fact and clamp the pencil-lead device, and load onto garden heart pin (69) in the end of ruler (6) in the end of ruler (5).In the garden box (79) of connector (4), compass (80) is housed, also has angle index (81).For not influencing the sensing of compass, this structure is made without ferromagnetic material.

The utility model as the using method of this structure of drawing on the paper with as the using method of the structure of drawing on the blackboard roughly the same.

Advantage of the present utility model is that it has the repertoire of drawing instruments such as ruler, set square, protractor, garden rule, and it is more convenient accurate to draw with it, thereby can improve drawing efficiency and drawing quality.

Fig. 1 to Figure 12 is that the utility model is as a kind of structure chart of drawing on blackboard.Wherein:

Fig. 1 is drawing usefulness " multi-purpose drafting tool " front view on blackboard.

Fig. 2 is the front view of connector (1).

Fig. 3 is the left view of connector (1).

Fig. 4 is the rearview of connector (1).

Fig. 5 is that connector (1) is along A-A line cutaway view.

Fig. 6 be on the blackboard drawing usefulness " multi-purpose drafting tool " along F-F line profile.

Fig. 7 is ruler (a 2) front view.

Fig. 8 is that ruler (2) is along B-B line cutaway view.

Fig. 9 is that ruler (2) is along C-C line cutaway view.

Figure 10 is ruler (a 3) front view.

Figure 11 is that ruler (3) is along D-D line cutaway view.

Figure 12 is that ruler (3) is along E-E line profile.

Figure 13 to Figure 22 is that the utility model is as a kind of structure chart of drawing on the paper.Wherein:

Figure 13 is drawing usefulness " multi-purpose drafting tool " front view on the paper.

Figure 14 be on the paper drawing usefulness " multi-purpose drafting tool " along G-G line part section enlarged drawing.

Figure 15 is connector (a 4) front view.

Figure 16 is connector (a 4) rearview.

Figure 17 is that connector (4) is along H-H line cutaway view.

Figure 18 is ruler (a 5) front view.

Figure 19 is that ruler (5) is along J-J line profile.

Figure 20 is that ruler (5) is along K-K line part section enlarged drawing.

Figure 21 is ruler (a 6) front view.

Figure 22 is that ruler (6) is along L-L line profile.

Figure 23 is that ruler (6) is along M-M line part section rotation diagram.

Claims (4)

1, a kind of multi-purpose drafting tool is characterized in that: by a connector (1,4), connecting one ruler (2,5), connecting another ruler (3,6) again and forming; Connector (1,4) can slide along ruler (2,5), may be locked in again and slides into part arbitrarily; Ruler (3,6) can rotate around the axle (7,55) of connector (1,4), and can change with ruler (2,5) to directly, and may be locked in and forward part arbitrarily to.

2, a kind of connector (1,4) described in claim 1, it is characterized in that: the matrix of connector (1,4) is a lamellar body that the arc limit is arranged, there is axle (7,55) at the arc core place below the lamellar body, also have below the lamellar body and protrude (8,9,49), protrude breach (10,50) and locate porose on the lamellar body (11,48), angle index (17,18,81,61) is arranged above the lamellar body, gravity pin (13) or compass (80) also are housed above the lamellar body.

3, a kind of ruler (2,5) described in claim 1 is characterized in that: groove (19,52) is arranged on the ruler (2,5), the scale of the length measured is arranged, an end is equipped with garden heart pin (44,69) or chalk folder, or clamps the pencil-lead device.

4, a kind of ruler (3,6) described in claim 1 is characterized in that: an end of ruler (3,6) porose (25,54), the other end are equipped with chalk folder (46), or clamp the pencil-lead device, or garden heart pin.Measure the scale of length on the ruler (3,6) in addition, having matches to use with angle index (18,61) on the connector (1,4) can make the accurate angle index of angular readings (30,62).

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