CN211710487U - Tool for economic management drawing - Google Patents

Abstract

The utility model discloses an instrument for economic management mapping, including first ruler, the fixed slot has been seted up at the top of first ruler, and the pivot is installed to the fixed slot internal rotation, and the top of pivot extends to the fixed slot outer and fixed mounting has the second ruler, and the spout has been seted up to one side of second ruler, and spout slidable mounting has the fly leaf, and outside one side of fly leaf extended to the spout, the top fixed mounting of fly leaf had the mount pad that is located the spout outer, and the mounting groove has been seted up to the bottom of mount pad, has all seted up the spread groove on the top inner wall of spout and the bottom inner wall. The utility model relates to a rationally, the practicality is good, and the simple operation utilizes the cooperation of first ruler and second ruler, not only can draw sharp mapping, still can draw the circle mapping, is convenient for adjust the length of fly leaf moreover, draws the circular pattern of different diameters, and the mapping and the teaching work of giving the mr bring the convenience, have multi-functional usability.

Description

Tool for economic management drawing

Technical Field

The utility model relates to a mapping instrument technical field specifically is an instrument for economic management mapping.

Background

The economic management major is a scientific course, the major faces the working practitioners, the major faces are application-type talents capable of being competent for the work of all levels of government economic management departments and the actual management work of enterprises and public institutions, when the economic management teaching and economic management major carries out teaching unification, some histograms, circular distribution maps and the like are often required to be drawn on a blackboard to visually display economic trends, data proportions and the like, and the ruler and the compasses are common drawing tools for drawing.

However, in the prior art, a common ruler is simple in structure and single in function, only straight lines can be drawn, compasses are required to be carried when circles are drawn, the required radius length is measured on the ruler by the compasses, then circles are drawn, the operation is complex, and the drawing time is wasted.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an instrument for economic management mapping has solved ruler simple structure, and the function singleness can only draw the straight line, when drawing the circle, still need carry the compasses, complex operation, extravagant mapping time's problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a tool for drawing economic management comprises a first ruler, wherein a fixed groove is formed in the top of the first ruler, a rotating shaft is rotatably mounted in the fixed groove, the top end of the rotating shaft extends out of the fixed groove and is fixedly provided with a second ruler, one side of the second ruler is provided with a sliding groove, a movable plate is slidably mounted in the sliding groove, one side of the movable plate extends out of the sliding groove, a mounting seat positioned outside the sliding groove is fixedly mounted at the top of the movable plate, a mounting groove is formed in the bottom of the mounting seat, connecting grooves are formed in the inner wall of the top and the inner wall of the bottom of the sliding groove, threaded holes are formed in the inner wall of one side, far away from each other, of the two connecting grooves, screw rods are mounted in the two threaded holes in a threaded manner of screwing, two ends of the screw rods extend out, one side that two antiskid ribbed tile are close to each other contacts with the top and the bottom of fly leaf respectively, and the equal fixed mounting of one end that two lead screws kept away from each other has the disc.

Preferably, a butterfly handle is fixedly arranged on one side, far away from each other, of each of the two disks.

Preferably, the bottom of the first ruler is fixedly provided with two suckers, and the two suckers are symmetrically arranged.

Preferably, the rotating shaft is fixedly sleeved with a bearing, and an outer ring of the bearing is fixedly connected with the inner wall of the fixing groove.

Preferably, the top inner wall and the bottom inner wall of the sliding groove are provided with limiting grooves, the top and the bottom of the movable plate are fixedly provided with limiting rods, and the two limiting rods are respectively slidably mounted in the corresponding limiting grooves.

Preferably, the top of the movable plate is provided with a graduated scale.

(III) advantageous effects

The utility model provides a tool for economic management mapping. The method has the following beneficial effects:

(1) this an instrument for economic management mapping, through utilizing two sucking discs, can adsorb first ruler and second ruler on the blackboard, utilize first ruler can draw the straight line on the blackboard, need not hand first ruler at the mapping in-process for the mapping in-process is more convenient, when needing the drawing circle, only needs to rotate the second ruler, and the second ruler drives fly leaf, mount pad and the chalk that inserts in the mounting groove and uses the pivot as the center rotation a week, can the circular pattern of roll-off.

(2) The two butterfly handles respectively drive the corresponding discs, the screw rods and the anti-skid plates to rotate by clockwise rotating the two butterfly handles, the two screw rods drive the corresponding anti-skid plates to screw into the corresponding connecting grooves, namely the fixation of the movable plate is released, the movable plate can be pulled out of the sliding grooves by proper length, the two butterfly handles are anticlockwise rotated, similarly, the two screw rods drive the corresponding anti-skid plates to screw out towards the corresponding connecting grooves, when the two anti-skid plates are clamped with the movable plate, the fixation of the movable plate in the sliding grooves is completed, according to the scale marks on the movable plate, the length of the movable plate pulled out of the sliding grooves is added with the length of the second ruler, namely the radius of a circle is drawn, the second ruler can be rotated to draw the circle, and the circles with different diameters can be drawn by adjusting the length of the movable plate, the teacher is convenient to draw and teach.

Drawings

FIG. 1 is a schematic sectional view of the main view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of the top view structure of the present invention.

In the figure: 1. a first straightedge; 2. fixing grooves; 3. a rotating shaft; 4. a second straightedge; 5. a chute; 6. a movable plate; 7. a mounting seat; 8. mounting grooves; 9. connecting grooves; 10. a threaded hole; 11. a screw rod; 12. an anti-skid plate; 13. a disc; 14. a butterfly handle; 15. and (4) sucking discs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution: a tool for drawing economic management comprises a first ruler 1, wherein a fixed groove 2 is formed in the top of the first ruler 1, a rotating shaft 3 is rotatably installed in the fixed groove 2, the top end of the rotating shaft 3 extends out of the fixed groove 2 and is fixedly provided with a second ruler 4, one side of the second ruler 4 is provided with a sliding groove 5, the sliding groove 5 is slidably provided with a movable plate 6, one side of the movable plate 6 extends out of the sliding groove 5, the top of the movable plate 6 is fixedly provided with an installation seat 7 positioned outside the sliding groove 5, the bottom of the installation seat 7 is provided with an installation groove 8, the inner wall of the top and the inner wall of the bottom of the sliding groove 5 are provided with connecting grooves 9, the inner wall of one side, far away from each other, of the two connecting grooves 9 is provided with a threaded hole 10, a screw rod 11 is threadedly installed in each threaded hole 10, two ends of the, the anti-skid plates 12 are fixedly mounted at the ends, close to each other, of the two screw rods 11, one sides, close to each other, of the two anti-skid plates 12 are respectively contacted with the top and the bottom of the movable plate 6, and the discs 13 are fixedly mounted at the ends, far away from each other, of the two screw rods 11.

The equal fixed mounting in one side that two discs 13 kept away from each other has butterfly handle 14, the bottom fixed mounting of first ruler 1 has two sucking discs 15, two sucking discs 15 are the symmetry setting, fixed cover is equipped with the bearing in the pivot 3, the outer lane of bearing and the inner wall fixed connection of fixed slot 2, the spacing groove has all been seted up on the top inner wall of spout 5 and the bottom inner wall, the equal fixed mounting in top and the bottom of fly leaf 6 has the gag lever post, two gag lever posts are slidable mounting respectively in corresponding spacing groove, the top of fly leaf 6 is equipped with the scale.

When the chalk drawing device is used, the aperture of the mounting groove 8 is slightly larger than the diameter of common chalks, a proper amount of chalks with different lengths are inserted into the mounting groove 8, one end of each chalk, which is exposed out of the mounting groove 8, is flush with the bottom of the corresponding sucker 15, the first ruler 1 and the second ruler 4 can be adsorbed on the blackboard through the two suckers 15, straight lines can be drawn on the blackboard through the first ruler 1, the first ruler 1 does not need to be held by hands in the drawing process, the drawing process is more convenient, when circles are drawn, the second ruler 4 only needs to be rotated, the movable plate 6, the mounting seat 7 and the chalks inserted into the mounting groove 8 are driven to rotate around the rotating shaft 3, the movable plate 6 and the mounting seat 7 are driven by the second ruler 4 to rotate for one circle, circular patterns can be slid out, circles with different diameters can be drawn according to needs, firstly, the two butterfly handles 14 are respectively rotated clockwise, and the two butterfly handles 14 respectively, The screw rods 11 and the anti-skid plates 12 rotate, because the two screw rods 11 are respectively in threaded connection and matching with the corresponding threaded holes 10, the two screw rods 11 drive the corresponding anti-skid plates 12 to screw into the corresponding connecting grooves 9, the two anti-skid plates 12 are not in contact with the movable plate 6 any more, namely the fixation of the movable plate 6 is released, the movable plate 6 can be pulled out of the chute 5, the movable plate 6 drives the two limit rods to respectively slide in the corresponding limit grooves, after the movable plate 6 is pulled out of the chute 5 by a proper length, the two butterfly handles 14 are respectively rotated anticlockwise, similarly, the two butterfly handles 14 respectively drive the corresponding discs 13, the screw rods 11 and the anti-skid plates 12 to rotate, so that the two screw rods 11 drive the corresponding anti-skid plates 12 to screw out in the direction out of the corresponding connecting grooves 9, after the two anti-skid plates 12 are clamped with the movable plate 6, the fixation of the, the movable plate 6 cannot slide in the sliding groove 5, the length of the movable plate 6 pulled out of the sliding groove 5 plus the length of the second ruler 4 is the radius of a circle to be drawn according to the scale marks on the movable plate 6, and the second ruler 4 can be rotated to draw a circle, so that circles with different diameters can be drawn by adjusting the length of the movable plate 6, drawing and teaching work of teachers are facilitated, and meanwhile, the content which is not described in detail in the specification belongs to the prior art which is well known by technical personnel in the field.

To sum up, the tool for drawing economic management can be obtained by utilizing the two suckers 15, the first ruler 1 and the second ruler 4 can be adsorbed on the blackboard, the first ruler 1 can be used for drawing a straight line on the blackboard, the first ruler 1 does not need to be held by hands in the drawing process, the drawing process is more convenient, when a circle needs to be drawn, only the second ruler 4 needs to be rotated, the second ruler 4 drives the movable plate 6, the mounting seat 7 and chalk inserted into the mounting groove 8 to rotate for a circle by taking the rotating shaft 3 as a center, the circle pattern can be slid out, the two butterfly handles 14 are rotated clockwise according to needs, the two butterfly handles 14 respectively drive the corresponding disc 13, the screw rod 11 and the anti-skid plate 12 to rotate, the two screw rods 11 drive the corresponding anti-skid plate 12 to be screwed in the direction in the corresponding connecting groove 9, namely the fixation of the movable plate 6 is released, the movable plate 6 can be pulled out of the chute 5 by a, the two butterfly handles 14 are rotated anticlockwise, similarly, the two screw rods 11 drive the corresponding anti-skid plates 12 to be screwed out towards the direction outside the corresponding connecting grooves 9, when the two anti-skid plates 12 are clamped with the movable plate 6, the movable plate 6 is fixed in the chute 5, according to the scale marks on the movable plate 6, the movable plate 6 is made to be pulled out of the chute 5 by the length added with the length of the second ruler 4 to obtain the circle drawing radius, the second ruler 4 can be rotated to draw a circle, circles with different diameters can be drawn by adjusting the length of the movable plate 6, and the teacher's drawing and teaching work is facilitated. Brings convenience to the drawing and teaching work of teachers, and has multifunctional usability.

Claims (6)

1. A tool for economic management of drawing, comprising a first ruler (1), characterized in that: the top of the first ruler (1) is provided with a fixed groove (2), a rotating shaft (3) is rotatably installed in the fixed groove (2), the top end of the rotating shaft (3) extends out of the fixed groove (2) and is fixedly provided with a second ruler (4), one side of the second ruler (4) is provided with a sliding groove (5), the sliding groove (5) is slidably provided with a movable plate (6), one side of the movable plate (6) extends out of the sliding groove (5), the top of the movable plate (6) is fixedly provided with a mounting seat (7) positioned outside the sliding groove (5), the bottom of the mounting seat (7) is provided with a mounting groove (8), the inner wall of the top and the inner wall of the bottom of the sliding groove (5) are both provided with connecting grooves (9), the inner wall of one side, far away from each other, of the two connecting grooves (9) is both provided with threaded holes (10), the two ends of the screw rod (, the one end that two lead screws (11) are close to each other runs through corresponding spread groove (9) respectively, and the equal fixed mounting in one end that two lead screws (11) are close to each other has antiskid ribbed tile (12), and one side that two antiskid ribbed tile (12) are close to each other contacts with the top and the bottom of fly leaf (6) respectively, and the equal fixed mounting in one end that two lead screws (11) are kept away from each other has disc (13).

2. The tool for economic management mapping of claim 1, wherein: and butterfly handles (14) are fixedly arranged on the sides of the two disks (13) far away from each other.

3. The tool for economic management mapping of claim 1, wherein: the bottom fixed mounting of first ruler (1) has two sucking discs (15), and two sucking discs (15) are the symmetry and set up.

4. The tool for economic management mapping of claim 1, wherein: the rotating shaft (3) is fixedly sleeved with a bearing, and the outer ring of the bearing is fixedly connected with the inner wall of the fixing groove (2).

5. The tool for economic management mapping of claim 1, wherein: the limiting grooves are formed in the inner wall of the top of the sliding groove (5) and the inner wall of the bottom of the sliding groove (5), limiting rods are fixedly mounted at the top and the bottom of the movable plate (6), and the two limiting rods are slidably mounted in the corresponding limiting grooves respectively.

6. The tool for economic management mapping of claim 1, wherein: and a graduated scale is arranged at the top of the movable plate (6).

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