CN105270051A - Novel ruler and compasses assembly - Google Patents

Abstract

The invention discloses a novel ruler and compasses assembly. The novel ruler and compasses assembly comprises a centering pin device, a variable-radius device, a protractor device, a pen clamping device and an idler wheel device. The pen clamping device is arranged on a rotary leg of the variable-radius device. The centering pin device and the idler wheel device are both installed on a center leg of the variable-radius device. The centering pin device is located between idler wheels of the idler wheel device. One end of the protractor device is fixed to the rotary leg of the variable-radius device, and the other end of the protractor device is hinged to the center leg of the variable-radius device. By the adoption of the novel ruler and compasses assembly, circles with different diameters and any lines can be drawn, the angle measurement function is achieved, three purposes are achieved through one ruler, and the trouble of searching for tools during drawing is saved. According to the novel ruler and compasses assembly, limitation to a specific pen is avoided, all required pens can be placed in a pen container to be used through a locking piece, and then required lines and circles can be drawn. Meanwhile, the novel ruler and compasses assembly can also serve as a protractor to be used for angle measurement, using is convenient, implementation is easy, and the novel ruler and compasses assembly can be used easily and rapidly.

Description

A new type of gauge

technical field

The invention belongs to the technical field of drawing tools, and in particular relates to a novel ruler.

Background technique

In the process of drawing, drawing tools such as rulers, compasses, and protractors are often widely used and are also indispensable, and the market prospect is very broad. There are many drawing tools now, and all of them can only be used separately. When drawing more complex drawings or in the teaching process, different types of drawing tools are needed. People often worry about not being able to find the tools and being inconvenient to carry. Moreover, many one-armed people often worry about not being able to easily draw straight lines and measure angles in their study and life.

Contents of the invention

Aiming at the deficiencies described in the above-mentioned prior art, the object of the present invention is to provide a new ruler gauge that can well combine drawing straight lines, drawing circles and measuring angles and is suitable for one-armed people.

For realizing above-mentioned technical purpose, the technical means that the present invention adopts is as follows:

A new type of gauge, comprising a centering pin device, a variable radius device, a protractor device, a pen clamping device and a roller device, the pen clamping device is arranged on the rotating leg of the radius changing device; the centering pin device and the roller device Both are installed on the center leg of the variable radius device, and the centering pin device is located between the rollers of the roller device; one end of the protractor device is fixed on the rotating leg of the variable radius device, and the other end of the protractor device is hinged on the center leg of the variable radius device superior.

The radius changing device includes a rotating leg and a central leg, and the top ends of the rotating leg and the central leg are hinged through a fixing piece. The angle formed between the swivel leg and the central leg is such that the radius of the drawn circle can be up to 130mm.

The pen holding device includes a pen holder, the pen holder is provided with an opening, and a locking piece is installed at the opening of the pen holder. Pens with different diameters can be clamped in the pen holder by adjusting the locking member.

The pen holder is integrally formed with the rotating leg.

The protractor device includes a protractor, on which an arc hole is arranged, and one end of the arc hole on the protractor is fixed on the rotating leg by a bolt; the other end of the arc hole is hinged on the center leg by a bolt. The radius of the circle can be adjusted by adjusting the position of the center leg in the arc-shaped hole. When the zero scale line of the protractor is aligned with the vertex of the angle and aligned with one side of the angle, by adjusting the position of the center leg in the arc-shaped hole The position of the angle can also be read in degrees.

The centering pin device includes a centering pin and an adjusting nut, and the centering pin is fixedly installed in the needle groove of the center leg through the adjusting nut, and slides in the needle groove. Loosening the adjusting nut can easily realize the sliding of the centering pin in the needle groove. When the circle is not needed, the centering pin is stored in the needle groove, and the centering pin is pulled out when in use.

The upper end of the centering pin is provided with a drop-proof protrusion. The protrusion can prevent the centering pin from falling out of the needle groove, and is also beneficial to realize the retraction and removal of the centering pin.

The roller device includes two identical rollers, scales are arranged on the two rollers, and are installed on the center leg through the connecting shaft and located on both sides of the centering needle. The transmission ratio of the rollers is the same, which can guarantee to draw a standard straight line, and the length of the drawn straight line can be known by reading the scale on the rollers.

The roller and the centering pin are located on the same side of the center leg, and the adjusting nut is located on the other side of the center leg.

The invention can not only draw circles of different sizes and any straight lines, but also has the function of measuring angles, and one foot can be used for three purposes, which saves the trouble of finding tools when drawing. The brush of this product is no longer limited to a specific pen, as long as you put the pen you want to use in the pen holder, you can use it through the locking piece, and you can draw the desired straight line and circle. At the same time, it can be used as a protractor to measure angles, which is convenient, simple and quick. The application field of the present invention is also relatively wide, and can be applied to long-term graphers such as one-armed people, students, teachers, engineers, etc., with low cost, exquisite and practical, and has great market promotion.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a front view of the present invention.

detailed description

Embodiment: As shown in Figure 1-2, a new type of ruler includes a centering needle device 1, a variable radius device 2, a protractor device 3, a pen holder device 4 and a roller device 5. The pen holding device 4 is arranged on the rotating leg 2 - 1 of the radius changing device 2 . The centering pin device 1 and the roller device 5 are all installed on the center leg 2-2 of the variable radius device 2, the centering pin device 1 is located between the rollers of the roller device 5; one end of the protractor device 3 is fixed on the variable radius device On the rotating leg 2-1 of 2, the other end of protractor device 3 is hinged on the central leg 2-2 of variable radius device 2.

The radius changing device 2 includes a rotating leg 2-1 and a central leg 2-2, and the top end of the rotating leg 2-1 is hinged to the top end of the central leg 2-2 through a fixing member 2-3. The angle formed between the rotating leg 2-1 and the central leg 2-2 makes the radius of the drawn circle up to 130 mm.

The centering pin device 1 includes a centering pin 1-1 and an adjusting nut 1-2, the centering pin 1-1 is fixedly installed in the needle groove of the center leg 2-2 through the adjusting nut 1-2, and slide inside. Loosen the adjusting nuts 1-2 to facilitate the sliding of the centering pin in the needle groove. When the circle is not needed, the centering pin is stored in the needle groove. When in use, the centering pin is pulled out.

Preferably, the upper end of the centering pin 1-1 is provided with a drop-proof protrusion. The protrusion can prevent the centering pin from falling out of the needle groove, and is also beneficial to realize the retraction and removal of the centering pin.

The pen holding device 4 includes a pen holder 4-1, which is integrally formed with the rotating leg 2-1. The pen container 4-1 is provided with an opening 4-2, and a locking member 4-3 is installed at the opening of the pen container 4-1. Pens with different diameters can be clamped in the pen container 4-1 by adjusting the locking member 4-3.

The protractor device 3 includes a protractor 3-1, an arc-shaped hole 3-2 is arranged on the protractor 3-1, and one end of the arc-shaped hole 3-2 on the protractor 3-1 is fixed on the rotating leg 2-1 by a bolt; The other end of arc hole 3-2 is hinged on the center leg 2-2 by bolt. The adjustment of the radius of the circle can be realized by adjusting the position of the central leg 2-2 in the arc-shaped hole 3-2. When the zero scale line of the protractor 3-1 is aligned with the vertex of the angle and aligned with one side of the angle, The degree of the angle can also be read by adjusting the position of the center leg 2-2 in the arc-shaped hole 3-2.

The roller device 5 includes two identical rollers, both rollers are provided with scales, and are installed on the center leg 2-2 through a connecting shaft and located on both sides of the centering pin 1-1. The transmission ratio of the rollers is the same, which can guarantee to draw a standard straight line, and the length of the drawn straight line can be known by reading the scale on the rollers.

Preferably, the roller and the centering pin 1-1 are located on the same side of the center leg 2-2, and the adjusting nut 1-2 is located on the other side of the center leg 2-2.

Method of use: place the pencil in the pen container 4-1 and clamp the pencil through the locking piece 4-3.

When drawing a straight line, put the centering needle 1-1 in the needle slot, and the user holds the upper end of the center leg 2-2 and moves horizontally. The center leg 2-2 transmits force to the rollers, and the two rollers move simultaneously. Sliding out of the straight line, the rotating leg 2-1 moves together with the center leg 2-2 under the action of the fixture, so that the pencil in the pen container 4-1 walks in a straight line. By reading the scale value on the roller, the length of the drawn straight line can be known.

When drawing a circle, remove the centering pin 1-1 from the needle slot, and adjust the length of the centering pin 1-1 leaking out of the needle slot, so that the needle tip is slightly longer than the pencil core, and the centering pin 1-1 and the pencil core pin All keep roughly perpendicular to the paper surface, adjust the position of the central leg 2-2 in the arc hole 3-2, and rotate the rotating leg 2-1 to draw a circle with a corresponding radius.

When measuring the angle, when the zero scale line of the protractor 3-1 is aligned with the vertex of the angle and aligned with one side of the angle, the position of the angle can also be read by adjusting the position of the center leg 2-2 in the arc hole 3-2. degree.

Claims (9)

1. A new type of ruler, characterized in that it includes a centering pin device (1), a variable radius device (2), a protractor device (3), a pen clamp device (4) and a roller device (5), the clamp The pen device (4) is set on the rotating leg (2-1) of the variable radius device (2); the centering pin device (1) and the roller device (5) are both installed on the center leg of the variable radius device (2) (2-2), the centering pin device (1) is located between the rollers of the roller device (5); one end of the protractor device (3) is fixed on the rotating leg (2-1) of the variable radius device (2), The other end of the protractor device (3) is hinged on the central leg (2-2) of the variable radius device (2). 2. A new type of ruler and gauge according to claim 1, characterized in that: the variable radius device (2) includes a rotating leg (2-1) and a center leg (2-2), and the rotating leg (2-1 ) and the top of the center leg (2-2) are hinged through the fixture (2-3). 3. A new type of ruler and gauge according to claim 1 or 2, characterized in that: the pen clamping device (4) includes a pen holder (4-1), and the pen holder (4-1) is provided with an opening (4-2 ), a locking piece (4-3) is installed at the opening of the pen holder (4-1). 4. A new type of ruler and gauge according to claim 3, characterized in that: the pen holder (4-1) and the rotating leg (2-1) are integrally formed. 5. A new ruler gauge according to claim 1 or 2, characterized in that: the protractor device (3) includes a protractor (3-1), and an arc-shaped hole ( 3-2), one end of the arc-shaped hole (3-2) on the protractor (3-1) is fixed on the rotating leg (2-1) by a bolt; the other end of the arc-shaped hole (3-2) is hinged on the center leg (2-2). 6. A new ruler gauge according to claim 1, characterized in that: the centering pin device (1) includes a centering pin (1-1) and an adjusting nut (1-2), and the centering pin ( 1-1) It is fixedly installed in the needle groove of the center leg (2-2) through the adjusting nut (1-2), and slides in the needle groove. 7. A new ruler gauge according to claim 6, characterized in that: the upper end of the centering pin (1-1) is provided with a drop-proof protrusion. 8. A new type of ruler and gauge according to claim 1 or 6, characterized in that: the roller device (5) includes two identical rollers, both rollers are provided with scales, and are installed in the center through a connecting shaft on the leg (2-2) and on either side of the centering pin (1-1). 9. A new ruler gauge according to claim 8, characterized in that: the roller and the centering pin (1-1) are located on the same side of the center leg (2-2), and the adjusting nut (1-2) On the opposite side of the center leg (2-2).