CN104149521B - A kind of Multifunction plotter - Google Patents

Abstract

The invention provides a kind of Multifunction plotter, comprise parallelogram movable mechanism and round ruler can be drawn, described parallelogram movable mechanism one end level is fixed, the other end is horizontally hinged draws round ruler, described centre of drawing round ruler is provided with guide groove, being provided with the radius-adjustable device along guide groove adjusting position in described guide groove, being provided with the hole for installing paintbrush in radius-adjustable device, described one end of drawing round ruler is also provided with for drawing round center of circle positioning device.The present invention can move freely and realize drawing straight line, parallel lines, circle, circular arc and the function such as to take measurement of an angle at any angle simultaneously in the scope of specifying, this invention structure is simple simultaneously, easy to maintenance, be adapted at promoting the use of in the multiple teaching environment such as drawing table and blackboard.

Description

A New Multifunctional Plotter

technical field

The invention relates to a drawing tool, in particular to a novel multifunctional plotter which can be installed on a drawing table or a blackboard.

Background technique

The ruler and compasses used on the drawing table are separate. The function of the ruler is relatively single, only drawing straight lines and measuring functions, and it is difficult to assist users to draw circles or arcs. Therefore, when drawing circles or drawing arcs, people also need to use drawing tools such as compasses in conjunction with rulers, protractors, etc. to complete, making the drawing work difficult and time-consuming.

Contents of the invention

The present invention aims at the above problems and provides a novel multifunctional plotter, which can move freely within a specified range and realize functions such as drawing straight lines, parallel lines, circles, arcs and measuring angles at any angle at the same time.

To achieve the above object, the present invention adopts the following technical solutions:

A new type of multifunctional plotter, comprising a parallelogram movable mechanism and a circular ruler, one end of the parallelogram movable mechanism is fixed horizontally, the other end is horizontally hinged to draw a circular ruler, and the circular ruler can be drawn A guide groove is arranged in the middle, and an adjustable radius device for adjusting the position along the guide groove is arranged in the guide groove, and a pen hole for installing a paintbrush is arranged in the adjustable radius device, and one end of the circle-drawing ruler is also provided with a There is a center positioning device for drawing circles.

The parallelogram movable mechanism includes five parallelogram mechanisms successively connected by cylindrical pins, one end of which is horizontally connected with a circular ruler by bolts.

The adjustable radius device includes an inverted T-shaped base, a positioning nut, and a compression nut. The part of the base passing through the guide groove is provided with an external thread, and the internal thread of the positioning nut is connected with the external thread of the base for Clamping can draw a circular ruler, the pen hole is arranged vertically through the base, and the compression nut is connected to the external thread of the base above the positioning nut to lock the axial position of the paintbrush.

A positioning scale line is arranged on the positioning nut.

The center-of-circle positioning device includes a hollow cylindrical outer cover fixed on a drawable circle ruler, a positioning pressure bar vertically arranged in the outer cover and movable up and down, a pointer, a protractor, a handle, and a spring, and the protractor is horizontally fixed on the outer cover, The pointer is horizontally fixed on the positioning pressure rod, the spring is located in the outer cover and sleeved on the positioning pressure rod, its lower end is in contact with the inner bottom of the outer cover, and its upper end is in contact with the shoulder of the positioning pressure rod. Locate the upper end of the plunger.

Compared with the prior art, the present invention has the following beneficial effects:

When the invention is installed on the drawing table or the blackboard, the circular ruler can be moved to any place on the drawing table or the blackboard through the parallelogram movable mechanism. When you want to draw a circle or an arc, press the positioning lever of the center positioning device to determine the position of the center of the circle. According to the size of the circle, adjust the position of the adjustable radius device in the guide groove. Insert the pencil into the pen hole. According to the pointer on the protractor By turning the angle, you can draw circles or arcs with different angles. When you want to draw a straight line or parallel line at any angle, you can directly use the protractor and the circular straightedge to achieve it. The present invention saves time and labor very much and is also very accurate when used.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic perspective view of a partially parallelogram movable mechanism of the present invention.

FIG. 3 is a top view of FIG. 2 .

Fig. 4 is a B-B sectional view in Fig. 3 .

Fig. 5 is a schematic diagram of the assembly of the drawable circle ruler, circle center positioning device and adjustable radius device of the present invention.

Fig. 6 is a schematic perspective view of the radius adjusting device of the present invention.

Fig. 7 is a sectional view along line C-C in Fig. 6 .

Fig. 8 is a schematic perspective view of a circle center positioning device of the present invention.

FIG. 9 is a schematic cross-sectional view along line D-D of FIG. 6 .

Fig. 10 is a perspective view of a circle-drawing ruler of the present invention.

Shown in the figure are: 1-parallelogram movable mechanism; 2-circular ruler; 3-guide groove; Positioning nut; 9-base; 10-positioning pressure rod; 11-outer cover; 12-spring; 13-pointer; 14-protractor.

detailed description

The purpose of the invention of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the embodiments cannot be repeated here one by one, but the implementation of the present invention is not therefore limited to the following embodiments.

As shown in Figures 1 to 10, a new multifunctional plotter includes a parallelogram movable mechanism 1 and a circle ruler 2, one end of the parallelogram movable mechanism 1 is horizontally fixed, and the other end is horizontally hinged to draw Circle ruler 2, described guide groove 3 is arranged in the center of described circle ruler 2, is provided with the adjustable radius device along guide groove 3 adjustment positions in described guide groove 3, is provided with in the adjustable radius device for The pen hole 5 of the paintbrush is installed, and one end of the circle-drawing ruler 2 is also provided with a circle center positioning device for drawing a circle.

Described parallelogram movable mechanism 1 comprises five parallelogram mechanisms successively connected by straight pins, one end of which is horizontally connected with circular ruler 2 by bolts.

The adjustable radius device includes an inverted T-shaped base 9, a positioning nut 8, and a compression nut 4. The part of the base 9 passing through the guide groove 3 is provided with an external thread and the positioning nut 8 is provided with a positioning scale line 7. , the internal thread of the positioning nut 8 is connected with the external thread of the base 9 for clamping the drawing circle ruler 2, the pen hole 5 is arranged in the base 9 through up and down, and the compression nut 4 is connected to the On the external thread of the base 9 above the nut 8, it is used to lock the axial position of the paintbrush.

Described center of circle locating device comprises the hollow cylindrical outer cover 11 that is fixed on drawable circle ruler 2, is vertically arranged in outer cover 11 and can move up and down positioning pressure bar 10, pointer 13, protractor 14, handle 6, spring 12, so The protractor 14 is horizontally fixed on the outer cover 11, the pointer 13 is horizontally fixed on the positioning bar 10, the spring 12 is located in the outer cover 11 and is set on the positioning bar 10, and its lower end is in contact with the inner bottom of the outer cover 11, The upper end abuts against the shoulder of the positioning pressing rod 10 , and the handle 6 is arranged on the upper end of the positioning pressing rod 10 .

When in use, moving the parallelogram movable mechanism 1 can move the drawable circle ruler 2 to any place on the drawing table or the blackboard. Then point the pointer above the protractor 14 to 90°, which can ensure that the circle ruler 2 can be drawn in a horizontal position, and the horizontal line can be drawn with a pen. According to the readings on the protractor 14, the circle-drawing straightedge 2 can be rotated around the positioning pressure rod 10 at any angle, and a straight line at any angle can be drawn. Then adjust the required size with the adjustable radius device, insert pencil or chalk in the pen hole 5 and rotate the compression nut 4 to fix, then you can draw the circle or arc of large and small radius. In addition, according to the readings on the protractor 14, the angle of any arc can also be directly measured, and the operation is convenient, quick, simple and practical.

The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (3)

1. A new type of multifunctional plotter, comprising a parallelogram movable mechanism (1) and a circular ruler (2), characterized in that: one end of the parallelogram movable mechanism (1) is fixed horizontally, and the other end is horizontal The circle-drawing straightedge (2) is hinged, and a guide groove (3) is provided in the middle of the circle-drawing ruler (2), and a guide groove (3) is provided in the guide groove (3) to adjust the position along the guide groove (3). The radius adjusting device is provided with a pen hole (5) for installing a paintbrush in the adjustable radius device, and one end of the circle drawing ruler (2) is also provided with a circle center positioning device for drawing a circle; The parallelogram movable mechanism (1) includes five parallelogram mechanisms successively connected by cylindrical pins, one end of which is horizontally connected with the circle-drawing ruler (2) by bolts; The adjustable radius device includes an inverted T-shaped base (9), a positioning nut (8), and a compression nut (4). The part of the base (9) passing through the guide groove (3) is provided with an external thread, so The internal thread of the positioning nut (8) is connected with the external thread of the base (9) for clamping the circle ruler (2), and the pen hole (5) is arranged vertically in the base (9), The compression nut (4) is connected to the external thread of the base (9) above the positioning nut (8), and is used to lock the axial position of the paintbrush. 2. A novel multifunctional plotter according to claim 1, characterized in that: the positioning nut (8) is provided with a positioning scale line (7). 3. A new type of multi-function plotter according to claim 1, characterized in that: the center positioning device includes a hollow columnar cover (11) fixed on a drawable circle ruler (2), vertically arranged on Positioning pressure rod (10), pointer (13), protractor (14), handle (6), spring (12) that can move up and down in the outer cover (11), and the protractor (14) is horizontally fixed on the outer cover (11) , the pointer (13) is horizontally fixed on the positioning pressure rod (10), the spring (12) is located in the outer cover (11) and sleeved on the positioning pressure rod (10), and its lower end is in contact with the inner bottom of the outer cover (11) The upper end abuts against the shoulder of the positioning pressure rod (10), and the handle (6) is arranged on the upper end of the positioning pressure rod (10).