Drawing level scale

Abstract

The utility model provides a horizontal plotting scale for drawing, which comprises a base, a three-edged ruler is arranged at the top of the base, a protractor is integrally arranged at the central position of one side of the base, a movable point ruler is rotatably connected to the central position of the protractor, an adjusting groove is formed in the movable point ruler, a movable part is movably connected to the interior of the adjusting groove, and the movable part is movably connected to the top of the base. Sliding grooves are formed in the positions, on the two sides of the movable point ruler, of the base, and positioning pieces are arranged in the sliding grooves. Compared with the prior art, the multifunctional drawing ruler has the following beneficial effects that the multifunctional drawing ruler integrates the traditional functions of a three-edged scale, a protractor, circle drawing, parallel line drawing and ellipse drawing, also has the functions of fixing drawings and conveniently moving, meets various drawing requirements of straight line drawing, angle measurement, ellipse drawing and the like, does not need to carry various tools, and is convenient to use. And the drawing efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drawing horizontal scale belongs to the field of scale. BACKGROUND

[0002] In the traditional hand-drawing field such as engineering design, building planning, mechanical drawing, the drawing scale as an important drawing tool has provided a quick and accurate length measurement and proportion conversion function for designers for a long time, and the common drawing scale is mostly prism or ruler, the surface of which is engraved with different proportion scales, such as 1:10, 1:50, 1:100, etc., which can meet the size drawing and zooming needs of linear patterns, and designers can conveniently convert the actual size into the drawing size through the scales on the scale, greatly improving the drawing efficiency, however, with the increasing diversification of modern design requirements, the application of circles and ellipses in various design schemes is more and more frequent, but the design structure and functional characteristics of the traditional drawing scale determine that it is only suitable for the measurement and drawing of straight line length and cannot directly draw ellipses and circles.

[0003] At present, if the designer wants to draw an ellipse, he often needs to use additional tools such as a compass and an ellipse gauge, which not only requires tedious proportion conversion in advance, but also makes the drawing process more complex, in addition, the carrying and frequent switching of multiple drawing tools also bring many inconveniences to the design work, therefore, it is necessary to design a drawing horizontal scale. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a drawing horizontal scale to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a drawing horizontal scale, comprising a base, the top of the base is provided with a three-edged ruler, and the central position of one side of the base is integrally provided with a protractor, and the central position of the protractor is rotatably connected with a moving point ruler, the inside of the moving point ruler is provided with an adjusting groove, and the adjusting groove is movably connected with a movable part, the base on both sides of the moving point ruler is provided with a sliding groove, and the sliding groove is provided with a positioning part, two positioning parts are connected with a drawing rope, and the drawing rope passes through the movable part.

[0006] Further, the three edges of the three-edged ruler are provided with scale lines of different proportion scales on both sides, and the three edges of the three-edged ruler are provided with insertion grooves on both sides, and the top of the base is symmetrically provided with an insertion strip matched with the insertion groove on both sides.

[0007] Further, the four corners of the base are provided with rollers, and the side of the base away from the moving point ruler is uniformly provided with small holes.

[0008] Further, the movable point scale and the protractor are detachably connected, and a fastening knob is arranged at the connecting position of the movable point scale and the protractor, and a ball is arranged at the end of the movable point scale away from the protractor.

[0009] Further, the movable point scale and the protractor are detachably connected, and a fastening knob is arranged at the connecting position of the movable point scale and the protractor, and a ball is arranged at the end of the movable point scale away from the protractor.

[0010] Further, the movable point scale and the protractor are detachably connected, and a fastening knob is arranged at the connecting position of the movable point scale and the protractor, and a ball is arranged at the end of the movable point scale away from the protractor.

[0011] Further, the movable point scale and the protractor are detachably connected, and a fastening knob is arranged at the connecting position of the movable point scale and the protractor, and a ball is arranged at the end of the movable point scale away from the protractor.

[0012] The utility model discloses the beneficial effect that:

[0013] By adjusting the position of the positioning member in the sliding groove, the focal point position of the ellipse is determined. The length of the drawing rope is adjusted by the winding knob, the drawing rope passes through the movable member, and the movable member can slide in the adjusting groove of the movable point scale. The pen is inserted into the pen insertion hole of the movable member, and the protractor is used as the center to rotate the movable point scale. Since the length of the drawing rope is fixed, the pen movement track on the paper conforms to the definition of the ellipse, so that the ellipse drawing is completed. The pen tips of the two pens are respectively inserted into the two small holes on the base, one of the pens is kept stationary as the center of the circle, and the whole device is rotated. The other pen makes circular motion around the fixed pen, so that a circle can be drawn on the drawing paper. The whole operation process is simple and convenient, and the designer can quickly adjust according to the drawing requirements.

[0014] The traditional three-angle scale, protractor, circular drawing, parallel line drawing and ellipse drawing functions are integrated, and the drawing paper is fixed and moved conveniently, so that various drawing requirements such as straight line drawing, angle measurement and ellipse drawing are met, and various tools are not needed to carry, so that the drawing efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other features, objects, and advantages of the application will become more apparent by reference to the following detailed description of non-limiting embodiments thereof as taken in conjunction with the accompanying drawings in which:

[0016] Figure 1 It is a structural schematic view of the drawing horizontal scale of the utility model;

[0017] Figure 2 It is a base structure schematic view of the drawing horizontal scale of the utility model;

[0018] Figure 3 It is a triangular scale structure schematic view of the drawing horizontal scale of the utility model;

[0019] Figure 4 It is a movable piece structure schematic view of the drawing horizontal scale of the utility model;

[0020] Figure 5 It is a positioning piece split structure schematic view of the drawing horizontal scale of the utility model;

[0021] In the figure: 1, triangular scale; 101, scale line; 102, slot; 2, base; 201, insert strip; 202, small hole; 3, moving point scale; 301, adjusting groove; 4, ball; 5, drawing rope; 6, movable piece; 601, baffle; 602, pencil insertion hole; 603, sliding rod; 604, anti-drop plate; 7, roller; 8, positioning piece; 9, sliding groove; 10, fastening knob; 11, protractor; 1201, first hand plate; 13, limiting plate; 1301, limiting tooth; 14, winding rod; 15, fastening bolt; 1501, rotating groove; 1502, tooth groove; 1503, second hand plate; 16, abutting spring; 17, sliding block; 1701, screw groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1 to 5The utility model provides a technical scheme: a drawing horizontal scale, including base 2, the top of base 2 is provided with three edge ruler 1, and the central position of one side of base 2 is integrally provided with protractor 11, and the central position of protractor 11 is rotatably connected with dynamic point ruler 3, and the inside of dynamic point ruler 3 is provided with adjusting groove 301, and the adjusting groove 301 is movably connected with movable part 6, the bottom 2 of dynamic point ruler 3 both sides is all provided with sliding slot 9, and the sliding slot 9 is provided with positioning piece 8, and the drawing rope 5 is connected between the two positioning pieces 8, and the drawing rope 5 passes movable part 6, positioning piece 8 is placed at the focal point of ellipse, the length of drawing rope 5 is adjusted, and the drawing rope 5 passes movable part 6, movable part 6 can slide in the adjusting groove 301 of dynamic point ruler 3, the pen is inserted into the pencil hole 602 of movable part 6, with protractor 11 as center, dynamic point ruler 3 is rotated, because the length of drawing rope 5 is fixed, the track of pen on paper meets the definition of ellipse, thereby completing ellipse drawing,

[0024] Exemplarily, the two sides of the three edges of three edge ruler 1 are provided with scale lines 101 of different scales, and the two sides of the three edges of three edge ruler 1 are provided with insertion grooves 102, and the two sides of the top of base 2 are symmetrically provided with insertion strips 201 matched with the insertion grooves 102, and the scale lines 101 of different scales can be used for measuring the length of straight line and drawing different scale drawings, and the insertion strips 201 and the insertion grooves 102 can stably connect three edge ruler 1 and base 2.

[0025] Exemplarily, the four corners of base 2 are provided with rollers 7, and the side, away from dynamic point ruler 3, of base 2 is uniformly provided with small holes 202, the pen nibs of two pens are respectively inserted into the two small holes 202 on base 2, one of the pens is kept stationary as a fixed point of the center of a circle, the whole device is rotated, the other pen makes circular motion with the fixed pen as the center, and a circle can be drawn on the drawing paper, the pen nibs are inserted into the small holes 202 of base 2, the small holes 202 are used as positioning points, base 2 is slid, and the track left by the pen nibs on the drawing paper is a straight line, and by using different small holes 202 as positioning points and sliding base 2, parallel lines can be drawn in turn.

[0026] Please refer to Figure 2 , dynamic point ruler 3 and protractor 11 are detachably connected, and a fastening knob 10 is arranged at the connecting position of dynamic point ruler 3 and protractor 11, one end of dynamic point ruler 3, away from protractor 11, is provided with a ball 4, and the ball 4 is designed to reduce friction with the drawing paper and make rotation smoother.

[0027] Please refer to Figure 3The movable part 6 comprises a slide rod 603, baffle plates 601 symmetrically arranged on the upper and lower ends of the slide rod 603, and an anti-falling plate 604 between the two baffle plates 601, and the baffle plates 601, the slide rod 603 and the anti-falling plate 604 are integrally formed by a mold, a pen hole 602 with an inner diameter smaller than the outer diameter of the slide rod 603 is formed at the central position of the movable part 6, the anti-falling plate 604 is designed in a semicircular arc, the inner diameter of the anti-falling plate 604 is greater than the outer diameter of the slide rod 603, the outer diameter of the anti-falling plate 604 is consistent with the inner width of the adjusting groove 301, and the drawing rope 5 passes through the gap between the anti-falling plate 604 and the slide rod 603, and the drawing rope 5 is not easy to fall off during drawing.

[0028] Please refer to Figure 5 The positioning part 8 comprises a winding knob 12, a fastening bolt 15 and a sliding block 17, the shape of the sliding block 17 is consistent with the shape of the inside of the sliding groove 9, a threaded groove 1701 adapted to the fastening bolt 15 is formed at the central position of the sliding block 17, second hand pinch plates 1503 are symmetrically arranged on the outer side of the nut of the fastening bolt 15, a rotating groove 1501 is formed in the inner side of the nut of the fastening bolt 15, first hand pinch plates 1201 are symmetrically arranged on the two sides of the winding knob 12, a winding rod 14 is integrally connected to the bottom of the winding knob 12, a limiting plate 13 with an outer diameter consistent with the inner diameter of the rotating groove 1501 is arranged on the bottom of the winding rod 14, and the drawing rope 5 is wound on the outer side of the winding rod 14, the design of the first hand pinch plates 1201 and the second hand pinch plates 1503 makes the winding knob 12 and the fastening bolt 15 rotate more labor-saving, the winding knob 12 can rotate relative to the fastening bolt 15 to realize winding and adjust the length of the drawing rope 5.

[0029] Please refer to Figure 5 Limiting teeth 1301 are uniformly arranged on the upper surface of the limiting plate 13, and a tooth groove 1502 consistent in shape with the limiting teeth 1301 is formed at the top end inside the rotating groove 1501, a pressing spring 16 is installed at the bottom end inside the rotating groove 1501, and the top of the pressing spring 16 presses against the bottom of the limiting plate 13, when winding, the winding knob 12 is pressed down, so that the limiting teeth 1301 are separated from the tooth groove 1502, which facilitates the rotation of the winding knob 12 for winding, after the length is determined, the winding knob 12 is released, the pressing spring 16 presses against the limiting plate 13, and in cooperation with the limiting teeth 1301 and the tooth groove 1502, the winding knob 12 can be fixed, and the length of the drawing rope 5 is stable.

[0030] Specific implementation: in use, by adjusting the position of the positioning member 8 in the sliding groove 9, the position of the focus of the ellipse is determined, the length of the drawing rope 5 is adjusted by the winding knob 12, the drawing rope 5 is wound around the movable member 6, the movable member 6 can slide in the adjusting groove 301 of the moving point ruler 3, the pen is inserted into the pen insertion hole 602 of the movable member 6, the moving point ruler 3 is rotated around the protractor 11, since the length of the drawing rope 5 is fixed, the trajectory of the pen on the paper conforms to the definition of the ellipse, thereby completing the drawing of the ellipse, the abutting spring 16 abuts against the limiting plate 13, the limiting teeth 1301 cooperate with the tooth groove 1502, the winding knob 12 can be fixed, the length of the drawing rope 5 is stable, the pen nibs of the two pens are respectively inserted into the two small holes 202 on the base 2, one of the pens is kept stationary as the fixed point of the center of the circle, the whole device is rotated, the other pen makes circular motion around the fixed pen, since the distance between the two pens is fixed, according to the definition of the circle, the moving pen can draw a circle on the drawing paper, the pen nib is inserted into the small hole 202 of the base 2, the base 2 is slid, the trajectory of the pen nib on the drawing paper is a straight line, by repeatedly taking different small holes 202 as the positioning point and keeping the base 2 parallel, parallel lines can be drawn in sequence.

[0031] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A horizontal drawing scale, comprising a base (2), characterized in that: The base (2) is provided with a triangular ruler (1) on the top, and a protractor (11) is integrally provided at the center of one side of the base (2). A movable ruler (3) is rotatably connected at the center of the protractor (11). An adjustment groove (301) is provided inside the movable ruler (3), and a movable part (6) is movably connected in the adjustment groove (301). Slide grooves (9) are provided on both sides of the base (2) of the movable ruler (3), and a positioning part (8) is provided in the slide groove (9). A drawing rope (5) is connected between the two positioning parts (8), and the drawing rope (5) passes around the movable part (6).

2. A horizontal scale for drawing according to claim 1, characterized in that: The three edges of the triangular ruler (1) are provided with scale lines (101) of different proportions on both sides, and slots (102) are provided on both sides of the three edges of the triangular ruler (1). Inserts (201) that are compatible with the slots (102) are symmetrically arranged on both sides of the top of the base (2).

3. A horizontal scale for drawing according to claim 1, characterized in that: Rollers (7) are provided at all four corners of the base (2), and small holes (202) are evenly provided on the side of the base (2) away from the moving point ruler (3).

4. A horizontal scale for drawing according to claim 1, characterized in that: The movable point ruler (3) and the protractor (11) are designed to be detachable, and a fastening knob (10) is installed at the connection between the movable point ruler (3) and the protractor (11). A ball bearing (4) is provided at the end of the movable point ruler (3) away from the protractor (11).

5. A horizontal scale for drawing according to claim 1, characterized in that: The movable part (6) includes a slide rod (603), baffles (601) symmetrically arranged at the upper and lower ends of the slide rod (603), and an anti-detachment plate (604) located between the two baffles (601). The baffles (601), slide rod (603) and anti-detachment plate (604) are molded as one piece. A pen insertion hole (602) with an inner diameter smaller than the outer diameter of the slide rod (603) is opened at the center of the movable part (6). The anti-detachment plate (604) is designed with a semi-circular arc. The inner diameter of the anti-detachment plate (604) is larger than the outer diameter of the slide rod (603), and the outer diameter of the anti-detachment plate (604) matches the inner width of the adjustment groove (301).

6. A horizontal scale for drawing according to claim 1, characterized in that: The positioning component (8) includes a winding knob (12), a fastening bolt (15), and a slider (17). The shape of the slider (17) matches the internal shape of the groove (9), and a threaded groove (1701) adapted to the fastening bolt (15) is provided at the center of the slider (17). A second hand gripping plate (1503) is symmetrically arranged on the outside of the nut of the fastening bolt (15), and a rotating groove (1501) is provided inside the nut of the fastening bolt (15). A first hand gripping plate (1201) is symmetrically arranged on both sides of the winding knob (12), and a winding rod (14) is integrally connected to the bottom of the winding knob (12). A limiting plate (13) with an outer diameter matching the inner diameter of the rotating groove (1501) is provided at the bottom of the winding rod (14), and a drawing rope (5) is wound around the outside of the winding rod (14).

7. A horizontal scale for drawing according to claim 6, characterized in that: The upper surface of the limiting plate (13) is uniformly provided with limiting teeth (1301), and the top of the rotating groove (1501) is provided with a tooth groove (1502) that matches the shape of the limiting teeth (1301). The bottom of the rotating groove (1501) is equipped with a clamping spring (16), and the top of the clamping spring (16) abuts against the bottom of the limiting plate (13).

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