CN103568663B

CN103568663B - Combined drawing tool

Info

Publication number: CN103568663B
Application number: CN201310563837.2A
Authority: CN
Inventors: 杨槟如; 王强; 刘杰; 唐超; 刘志亮; 朱坚民; 施小明; 钱炜
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2013-11-14
Filing date: 2013-11-14
Publication date: 2015-07-15
Anticipated expiration: 2033-11-14
Also published as: CN103568663A

Abstract

The invention provides a combined drawing tool. The combined drawing tool comprises a disc structure and a support structure. The disc structure comprises a connecting disc, a disc cap, a cap pin assembly and an elastic assembly. The support structure comprises a first support and a clamping structure, wherein the extending side of the disc structure is connected with the first support, and the clamping structure is clamped inside the support structure and is in sliding connection with the support structure. A steel needle is arranged inside the disc structure and serves as the circle center of a compass, one end of the disc structure is vertically and rotatably connected with the first support through a shaft wheel, a sliding clamping structure is arranged inside the first support, a pen is inserted into the clamping structure, a user can use the pen to draw a circle by fixing the circle center and rotating the pen, and therefore the combined drawing tool can serve as the compass. An auxiliary ruler is arranged on the side face of the first support, the user can use the auxiliary ruler to draw a straight line with the certain length, and therefore the combined drawing tool can serve as a straight ruler. The combined drawing tool which is multifunctional and convenient to use is provided, the complex steps in the drawing process can be simplified, the combined drawing tool is convenient carry, and the comprehensive combined functions can be achieved.

Description

Combined drawing tool

Technical Field

The invention belongs to the field of drawing tools, and particularly relates to a combined tool of a disc, a ruler and a protractor for student measurement and drawing.

Background

In a common drawing tool in a classroom of an university student, two set squares, namely, 45-degree set squares and 60-degree set squares, as well as a protractor and compasses, are needed. The four-piece tool is used in cooperation with each other to draw fixed-length line segments, polygons, circles and arcs. The above-mentioned instrument is all comparatively common, obtains comparatively easily, has the advantage of measuring result relatively accurate, but the defect that exists simultaneously is: the operation is complicated, the carrying is inconvenient, and the realization function of each tool is too single.

Disclosure of Invention

The invention aims to provide a multifunctional convenient combined drawing tool.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the invention provides a combined drawing tool, which comprises: the disc structure comprises a connecting disc, a disc cap, a needle assembly with a cap and an elastic assembly; the bracket structure is provided with a first bracket which is connected with one side of the disc structure in a stretching way; the clamping structure is in sliding connection with the clamping support structure in a clamping manner, the first support is in rotating connection with the plane vertical to the disc structure, a protruding hollow circular truncated cone is fixedly arranged above the connecting disc, a thread which is movably connected with the disc cap is arranged outside the protruding hollow circular truncated cone, a hollow T-shaped table which is used for vertically enclosing the needle assembly with the cap is arranged inside the protruding hollow circular truncated cone, the elastic assembly is located inside the hollow T-shaped table and used for abutting against the cap end of the needle assembly with the cap, the first support comprises a first support groove arranged in the support, an auxiliary ruler assembly and a support body, the sliding connection assembly is connected with the first support groove in a sliding mode through the sliding connection assembly on the same horizontal plane, and the clamping structure comprises a pen cap which is sleeved with pens in the first support groove and a bolt structure which penetrates through a baffle of the first support groove and is movably connected with.

Further, the combined drawing tool provided by the invention can also have the following characteristics: the support structure further comprises: and the second support is positioned on the lower side surface of the connecting disc opposite to the convex hollow round table, is provided with a second guide groove and is in sliding connection with the connecting disc through the second guide groove.

Further, the combined drawing tool provided by the invention can also have the following characteristics: the inner side lines of the first bracket and the second bracket are crossed on a capped needle assembly of the connecting disc.

Further, the combined drawing tool provided by the invention can also have the following characteristics: the circumferential edge of the convex hollow round table also comprises a dial which is connected on the convex hollow round table of the connecting disc in a covering manner, and the convex hollow round table and the dial are two concentric circles.

Further, the combined drawing tool provided by the invention can also have the following characteristics: the upper surface of the dial is also provided with an indicating dial which is matched with the dial to display scales in the dial aligned by indicating dial pointers.

Further, the combined drawing tool provided by the invention can also have the following characteristics: the elastic component comprises a first spring and a second spring in the same vertical direction, the first spring is positioned above the second spring, and the elastic coefficient of the first spring is greater than that of the second spring.

Further, the combined drawing tool provided by the invention can also have the following characteristics: the capped needle assembly comprises a steel needle, the upper side surface of the cap end of the steel needle is connected with a first spring, and the first spring is connected with a second spring through the lower side surface of the cap of the steel needle.

Action and Effect of the invention

According to the combined drawing tool, the disc structure is internally provided with the steel needle which is used as the circle center of the compasses, the first support is vertically and rotatably connected with one end of the disc structure through the shaft wheel, the first support is internally provided with the sliding clamping structure, the pen is inserted into the clamping structure, and the pen can be rotated to form a circle by fixing the circle center, so that the function of the compasses is realized. The side surface of the first support is provided with the auxiliary ruler which can be used as a straight ruler to realize the function of being used as a straight ruler, so the invention can provide a multifunctional convenient combined drawing tool which can simplify the complex steps in the drawing process, is convenient to carry and can realize the combined function of complex property.

Drawings

FIG. 1 is a schematic top view of a combination drawing tool according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a front view of a combination drawing tool according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view A-A of FIG. 2 in an embodiment of the present invention;

FIG. 4 is a schematic view of a structure of a holding device in an embodiment of the present invention;

FIG. 5 is a top view of a dial in an embodiment of the invention;

FIG. 6 is a top and front view of an indicator panel in a connecting disk in an embodiment of the present invention; and

figure 7 is a top view of a secondary ruler in an embodiment of the invention.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific embodiments and the attached drawings.

FIG. 1 is a schematic top view of a combination drawing tool 001 according to an embodiment of the present invention; fig. 2 is a schematic front view of a combined drawing tool 001 according to an embodiment of the present invention.

As shown in fig. 1-2, in this embodiment, the present invention provides a combined drawing tool 001, including: the disc structure 100, the bracket structure 200 rotatably connected with the disc structure 100 in a vertical direction, the clamping structure 300 movably connected with the bracket structure 100, the dial plate 400 covered on the disc structure 100 and the indicating plate 500.

Fig. 3 is a schematic sectional view a-a of fig. 2 in an embodiment of the present invention.

As shown in fig. 3, the disc structure 100 includes a connection disc 110, a disc cap 120, a capped needle assembly 130, and an elastic assembly 140.

A convex hollow round table 110 (1) is fixedly connected above the connecting disc 110, threads are arranged on the convex hollow round table 110 (1), a disc cap 120 is movably connected with the threads, a hollow T-shaped table is arranged inside the convex hollow round table 110 (1), a cap needle assembly 130 is arranged at the vertical section of the hollow T-shaped table, and an elastic assembly 140 is arranged at the cap end of the cap needle assembly 130.

The elastic member 140 includes a first spring and a second spring in the same vertical direction. The first spring is positioned above the second spring, and the elastic coefficient of the first spring is larger than that of the second spring. The capped needle assembly 130 is embodied as a steel needle, i.e. a first spring is connected above the cap end of the capped needle assembly 130 and a second spring is connected below the cap end.

As shown in fig. 1-2, the support structure 200 includes a first support 210 and a second support 220. The first bracket 210 is connected to the side of the disk structure 100, the second bracket 220 is connected to the bottom side of the protruding hollow circular truncated cone 110 (1), and the first bracket 210 is connected to the connecting disk 110 via a rotating shaft and can rotate freely around the second bracket 220 together with the connecting disk 110. The inner lines of the first bracket 210 and the second bracket 220 cross the steel pins of the connecting disc 100.

The first bracket 210 includes a first bracket slot 211, a second bracket slot 212, a sub-scale assembly 213, and a slide connection assembly 214 disposed within the bracket.

The sliding connection assembly 214 includes a first sliding assembly and a second sliding assembly, which is specifically a bolt element in this embodiment.

The first and second bracket grooves 211 and 212 are located on both sides of the horizontally disposed bracket structure 200, are parallel to each other, and serve as guide rails for the first and second sliding members, respectively.

The groove surface of the first bracket groove 211 is provided with an auxiliary ruler component 213, and is attached to the auxiliary ruler component 213 in parallel. As shown in fig. 7, the sub ruler member 213 is embodied as a sub ruler, and the sub ruler is connected to the first bracket groove 211 via the first sliding member and can be extended and retracted back and forth along the first bracket groove 211.

One side of the second bracket groove 212 is connected with the second sliding assembly, and the other side of the second bracket groove 212 is connected with the clamping structure 300.

Fig. 4 is a schematic structural view of a holding structure in an embodiment of the present invention.

As shown in fig. 4, the clamping structure 300 includes a pen cap 310, a baffle 320, and a bolt structure 330. The pen cap 310 is located in the first bracket groove 211 and is used for being sleeved with a pencil to draw an arc. One side of the baffle 320 passes through the first bracket slot 211 to be connected with the pen cap 310, and the other side of the baffle 320 is movably connected with the second sliding assembly.

The second support 220 is embodied as a main scale, and the main scale is provided with a groove, which is used as a sliding guide for the connection disc 110, so that the connection disc 110 can slide back and forth along the groove.

Fig. 5 is a top view of a dial in an embodiment of the invention.

As shown in fig. 5, in the present embodiment, the dial 400 covers the protruding hollow circular truncated cone 110 (1) and is attached to the circumferential edge of the protruding hollow circular truncated cone 110 (1). Since the inner lines of the second bracket 220 and the first bracket 210 are crossed on the steel needle of the connecting disc 110, the crossing angle of the inner lines of the second bracket 220 and the first bracket 210 is the angle to be measured, i.e. the dial 400 is used for measuring the degree of the included angle between the first bracket 210 and the second bracket 220.

Fig. 6 is a top view and a front view of an indicator panel in a connecting disk in an embodiment of the present invention.

In this embodiment, the combination drawing tool 001 further comprises an indicator dial 500, the indicator dial 500 cooperating with the dial 400 to display the scale 401 in the dial 400 aligned by the pointer 501 of the indicator dial 500.

The following description will be made in conjunction with the detailed operation of the combination drawing tool 001 of the present invention.

As shown in fig. 1-7, when the combined drawing tool 001 is used as a compass, a disc cap 120 is provided on a convex hollow circular truncated cone 110 (1) above a connecting disc 110, the disc cap 120 is rotated clockwise, the disc cap 120 is connected with the thread of the convex hollow circular truncated cone 110 (1), at this time, a steel needle is extended, the disc cap 120 is pressed by manpower to fix the steel needle at the center of the drawing paper, then a first bracket 210 connected with a rotating shaft is lifted, the longitudinal lifting angle of the first bracket 210 is fixed, a pen is put into a pen clip to extend to a proper height until the pen point falls on the drawing paper, the rotating scale is rotated horizontally, the eye is aligned with the distance between the pen point and the steel needle on the drawing paper, the radius size is adjusted by sliding the position of the pen clip on a second sliding groove, the main scale is used to measure and determine the distance between the pen point and the steel needle, namely, and finally, after the distance is confirmed, the nut can tightly fix the pen cap 310 in the pen clip on the first bracket 210, when the circle is made, one hand holds the disc cap 120, and the other hand assists the first support 210 to make circular motion.

When the horizontal line or the vertical line of fixed length, adjust first support 210, second support 220 relative angle to 90 degrees or 270 degrees, screw up disc cap 120 clockwise again, the steel needle can stretch out this moment, and people can press down the calibrated scale 400 with strength and make the main scale press close to paper or face, and the straight line of fixed length is intercepted according to the scale on the main scale.

When the angle line segments are formed, the included angle between the first bracket 210 and the second bracket 220 is turned to the required angle of the dial 400. Similarly, the disc cap 120 is locked, the auxiliary ruler is pushed out and fixed, two lines are drawn along the inner side lines of the first support 210 and the second support 220, and then the main ruler is used for supplementing the lines to the junction.

Effects and effects of the embodiments

According to the combined drawing tool, the steel needle is arranged in the disc structure and used as the circle center of the compasses, the first support is vertically and rotatably connected with one end of the disc structure through the arbor wheel, the sliding clamping structure is arranged in the first support, the pen is inserted into the clamping structure, the pen can be rotated to make a circle by fixing the circle center, the side face of the first support is provided with the auxiliary ruler, the straight ruler of the second support matched with the support structure can make a straight line with a certain length and can also be matched with the straight ruler to make a T-shaped drawing, in addition, the disc structure is also provided with the dial, the degree displayed on the dial can be read through the angle formed by the two rulers, and the combined drawing tool can be used as a protractor Complex combined functions can be realized.

Of course, the combination drawing tool according to the present invention is not limited to the configuration of the present embodiment.

In addition, in the embodiment, because the first sliding assembly is arranged on the first sliding groove, the first sliding assembly is specifically two nut assemblies, and the secondary ruler can be kept fixed in the first sliding guide groove to slide, the two nut assemblies can be arranged to enable the secondary ruler to slide more stably.

In addition, in the embodiment, because the inner side lines of the first bracket and the second bracket are crossed on the steel needle of the connecting disc, the included angle between the inner side lines of the first bracket and the second bracket can be ensured to be the angle displayed on the dial plate.

Claims

1. A combination drawing tool, comprising:

a disc structure which comprises a connecting disc, a disc cap, a needle assembly with a cap and an elastic assembly,

the bracket structure comprises a first bracket and a second bracket which are connected with one side of the disc structure in an extending way; and

a clamping structure which is embedded in the bracket structure and is connected with the bracket structure in a sliding way,

wherein,

the first bracket is rotationally connected in a plane vertical to the disc structure,

a convex hollow round table is fixedly arranged above the connecting disc, a thread which is movably connected with the disc cap is arranged outside the convex hollow round table, a hollow T-shaped table which is used for vertically enclosing the needle assembly with the cap is arranged inside the convex hollow round table,

the elastic component is positioned in the hollow T-shaped table and used for abutting against the cap end of the needle component with the cap,

the second bracket is positioned on the lower side surface of the connecting disc opposite to the convex hollow round table,

the first bracket comprises a first bracket groove arranged in the bracket, an auxiliary ruler component, a bracket body and a sliding connection component,

the second bracket is provided with a second guide groove which is connected with the connecting disc in a sliding way,

the auxiliary ruler component and the first bracket groove are in sliding connection through the sliding connection component on the same horizontal plane,

the clamping structure comprises a pen cap which is positioned in the first support groove and is sleeved with a pen, and a bolt structure which penetrates through the baffle of the first support groove and is movably connected with the baffle.

2. The combination drawing tool of claim 1, wherein:

wherein the first stent and the second stent inside line intersect on the capped needle assembly.

3. The combination drawing tool of claim 1, wherein:

wherein the circumferential edge of the convex hollow round platform also comprises a dial which is connected with the convex hollow round platform of the connecting disc in a covering manner,

the protruding hollow round table and the dial are two concentric circles.

4. A combination drawing tool according to claim 3, wherein:

the dial is characterized in that an indicating dial is further arranged on the upper surface of the dial, and the indicating dial is matched with the dial to display scales in the dial, which are aligned by indicating dial pointers.

5. The combination drawing tool of claim 1, wherein:

the elastic assembly comprises a first spring and a second spring in the same vertical direction, the first spring is positioned above the second spring, and the elastic coefficient of the first spring is greater than that of the second spring.

6. The combination drawing tool of claim 5, wherein:

the capped needle assembly comprises a steel needle, wherein the upper side surface of the cap end of the steel needle is connected with a first spring, and the first spring is connected with a second spring through the lower side surface of the cap of the steel needle.