CN103144470A - Laser positioning compass - Google Patents

Abstract

A laser positioning compasses, belonging to stationery, its structural feature is that the top of the anti-slip knob is equipped with a laser switch, the lower end of the anti-slip knob is connected with the upper end of the transparent window, the lower end of the transparent window is connected with the upper end of the rotating shaft, and the rotating shaft is connected with the base The top of the base, the lower part of the base is fixedly connected with several tripods, the bottom of the tripod is connected with non-slip foot pads, the anti-slip knob, transparent window, rotating shaft and the axis of the base are the same, the laser head is located on the axis and connected to the base On the lower surface, one end of the beam ruler is connected on the transparent window, and the other end is vertically connected with the connecting plate, and the lower end of the connecting plate is connected with the pen clip, and the pen clip is connected with the writing pen. The invention is not only simple in structure, but also very convenient to use. The center of the circle is positioned accurately, the circle is drawn accurately, and no holes are left on the paper. efficiency.

Description

Laser positioning compasses

technical field

The invention relates to a stationery product, in particular to a laser positioning compasses.

Background technique

Compass is very commonly used as a tool for drawing and drawing circles. It is not only required to accurately locate the position of the center of the circle, but also to draw a circle that requires a radius. Therefore, the existing compasses generally use a pointed metal foot to locate the center of the circle, and the other supports The writing pen locates the radius of the circle. Before drawing the circle, it is necessary to measure the radius of the circle to be drawn on the ruler in advance. It is very troublesome to use, and when drawing on paper materials, because the sharp metal feet will pierce the paper, it is difficult to Potholes will be left on the smooth paper surface, which seriously affects the beauty of the drawing, and people are easily stabbed by sharp metal feet. It is not safe to use. The current compasses cannot be used alone. In the engineering manual drawing with high requirements , Compass + ruler + drawing board are necessary tools for drawing circles, and it is very troublesome to use. It is necessary to repeatedly locate the radius of the circle on the ruler, which also seriously affects the accuracy of drawing circles.

Contents of the invention

The object of the present invention is to provide a laser positioning compasses, which has the advantages of safety and reliability, high precision of circle drawing, convenient use and beautiful drawing.

The present invention is realized in this way, it comprises laser switch, anti-slip knob, transparent window, rotating shaft, base, tripod, non-slip foot pad, laser head, pen clip, writing pen, beam ruler and connecting plate, it is characterized in that anti-slip There is a laser switch on the top of the knob, the lower end of the non-slip knob is connected to the upper end of the transparent window, the lower end of the transparent window is connected to the upper end of the rotating shaft, the rotating shaft is connected to the top of the base, and several tripods are fixedly connected to the lower part of the base. The bottom of the frame is connected with a non-slip foot pad, the anti-slip knob, the transparent window, the axis of rotation and the axis of the base are the same. The laser head is located on the axis and connected to the lower surface of the base. One end of the beam ruler is connected to the transparent window. The other end is vertically connected with the connecting plate, the lower end of the connecting plate is connected with the pen clip, and the pen clip is connected with the writing pen.

The technical effect of the present invention is: the present invention is not only simple in structure, but also very convenient to use, with accurate positioning of the center of the circle, accurate circle drawing, no holes left on the paper, beautiful drawing, using laser to locate the center of the circle, and drawing the circle with its own ruler Radius improves the efficiency of drawing circles.

Description of drawings

Fig. 1 is a schematic isometric view of the structure of the present invention.

Fig. 2 is a schematic top view of the structure of the present invention.

Fig. 3 is a schematic bottom view of the structure of the present invention.

In the figure, 1. Laser switch 2. Anti-slip knob 3. Transparent window 4. Rotation shaft 5. Base 6. Tripod 7. Non-slip foot pad 8. Laser head 9. Pen holder 10. Writing pen 11. Beam ruler 12. connecting plate.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, the present invention is realized like this, it comprises laser switch 1, anti-slip knob 2, transparent window 3, rotating shaft 4, base 5, tripod 6, non-slip foot pad 7, Laser head 8, pen holder 9, writing pen 10, beam ruler 11 and connecting plate 12, its structural feature is that the top of the anti-slip knob 2 is provided with a laser switch 1, the lower end of the anti-slip knob 2 is connected with the upper end of the transparent window 3, and the transparent window The lower end of 3 links to each other with the upper end of rotating shaft 4, and rotating shaft 4 is connected on the top of base 5, and the bottom of base 5 is fixedly connected with several tripods 6, and the bottom of tripod 6 is connected with non-slip foot pad 7, anti-slip knob 2, The axes of the transparent window 3, the rotating shaft 4 and the base 5 are the same, the laser head 8 is located on the axis and connected to the lower surface of the base 5, one end of the beam ruler 11 is connected to the transparent window 3, and the other end is connected to the connecting plate 12 is vertically connected, and the lower end of the connecting plate 12 is connected with the pen clip 9, and the pen clip 9 is connected with the writing pen 10. When in use, the compass is fixed on the paper through the tripod 6 on the base 5, the anti-slip foot pad 7 prevents the compasses from sliding in the drawing, the laser switch 1 is turned on, the laser head 8 emits laser, the laser locates the center of the circle, adjusts the beam ruler 11, Through the transparent window 3, the beam ruler 11 is telescopically adjusted to determine the circumference radius. The connecting plate 12 is designed to be sunken, which lowers the center of gravity. The transparent window 3 rotates, the transparent window 3 drives the beam ruler 11 to rotate, and the beam ruler 11 drives the writing pen 10 to rotate and draw a circle, which is very convenient. The entire process of drawing a circle can be completed with a compass, and the center of the circle is positioned by laser, which avoids paper damage.

The biggest invention of the present invention lies in: 1. Use laser projection positioning to replace the traditional metal feet as the fixed point of the center of the circle, making the center of the circle beautiful in the drawing;

2. Absorb the ruler into the structure of the compasses, avoiding the independent situation that the compass and ruler are used separately in the drawing;

3. The design of the sunken connecting plate, the design of the pen holder, and the design of the transparent window make the circle positioning accurate during drawing, and the rotation is stable during drawing, ensuring the beauty of the arc.

Claims (1)

1. laser positioning compasses, it comprises laser switch, anti-skidding knob, transparent window, rotating shaft, base, foot rest, Slippery proof foot pad, laser head, pen clip, lettering pen, beam chi and connecting plate, the top that it is characterized in that anti-skidding knob is provided with laser switch, the lower end of anti-skidding knob is connected with the upper end of transparent window, the lower end of transparent window is connected with the upper end of rotating shaft, rotating shaft is connected to the top of base, the bottom of base is fixed with several foot rests, the bottom of foot rest is connected with Slippery proof foot pad, anti-skidding knob, transparent window, the axis of rotating shaft and base is identical, laser head is positioned on described axis, and be connected on the lower surface of base, one end of beam chi is connected on transparent window, the other end is connected with connecting plate is vertical, the lower end of connecting plate is connected with pen clip, pen clip connects lettering pen.

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