CN2292028Y - Square rule - Google Patents

Abstract

The utility model relates to a square gauge which is suitable for drawing square figures. The utility model is composed of two ruler strips 1, a line drawing pen 2, an orbit 3, a line pull pen 4, a button 5, etc., wherein the two ruler strips are connected by a pin shaft and can be doubled over into a right angle, and the line drawing pen can be pulled to a predetermined position in advance; when the button is pressed, the line drawing pen is pulled back, and thus, two square sides can be drawn; after the foregoing operation is repeated for one time, the square figure can be drawn. The square gauge can be used as a teaching aid, or stationery, or other tools.

Description

Square gauge

The utility model is a kind of tolerance apparatus, promptly a kind of square gauge.

At present, drawing circle and oval figures all has special equipment, and drawing square or rectangular does not then have special-purpose apparatus.

The purpose of this utility model is a kind of square of drawing of development, rectangular special equipment.

Above-mentioned purpose realizes that by following technical scheme this square gauge can be formed the chi bar on the limit that meets at right angles by two, is linked to each other by bearing pin between the two chi bars.

Be provided with detail pen, detail pen track in the chi bar of said square gauge, draw a line and button, detail pen can and draw the manipulation lower edge track of a line to slide at button.

Square gauge according to such scheme is made during use, places detail pen on definite position earlier, square gauge is placed on the picture again, presses button, and desired rectangle can have been drawn again in the both sides of the rectangle that just can draw automatically.This square gauge uses simple and directly, can also use as carpenter's square chi.

Introduce a kind of embodiment below in conjunction with accompanying drawing:

Fig. 1 is the front view of present embodiment, and Fig. 2 is its left view, and Fig. 3 is its vertical view.

Fig. 4 is the structural representation of button.

Fig. 5 is the structural representation of detail pen.

Schematic diagram when Fig. 6 is square gauge work circle or collection.

Among Fig. 1: 1 chi bar, 2 detail pens, 3 tracks, 4 draw a line, 5 buttons.Among Fig. 4: 6 springs, 7 bearing pins, 8 bearings, 9 extension springs, 10 rotating shafts, 11 rolls, 12 line ball pin.Among Fig. 5: 13 cards, 14 cappings, 15 stage clips, 16 plumbous folders, 17 pencil leads, 18 locknuts.

As seen from the figure, this square gauge is made up of two chi bars 1, is cavity in the chi bar, is provided with track 3, card has detail pen 2 on track 3, and pen 2 is provided with and draws a line 4, draws a line pressure on line ball pin 12, press button 5, line ball pin 12 lifts, and can spur detail pen to the position of determining.Decontrol button, the line ball pin can be pushed down and draw a line, thereby pen is rested on definite position.In pulling backguy pen, roll 11 is drawn commentaries on classics, and the rotating shaft 10 that is connected with it is rotated, and tension extension spring 9.When the needs setting-out, as long as square gauge is placed on the picture, press the button 5 again, line ball pin 12 lifts, and detail pen 2 promptly slides to button on one side at the effect lower edge track that draws a line 4, can come with two limits of the rectangle that draws like this.And then the two other limit of drawing that uses the same method.

As seen from Figure 5, the shell of detail pen the inside is provided with the pen card 13 that matches with track, can put into plumbous folder 16 in the shell earlier, put into stage clip 15 again,, pencil lead 17 is inserted plumbous folder 16 in the above again capping spinning, again locknut 18 is screwed on the plumbous folder 16, can clamps pencil lead 17.This detail pen can keep suitable pressure to picture, does not influence contacting of chi bar and picture again, can also adjust the replacing pencil lead easily.

During end-of-job, can fold up square gauge by the appearance of Fig. 6, be put in the box.If detail pen is moved to chi bar one end, then can pull out detail pen and be stuck in chi bar end, can replace compasses like this, at the drawing upper drawing circle.

Claims (2)

1, kind is applicable to the square gauge that picture is square, it is characterized in that this square gauge can be formed becoming 90 ° chi bar (1) by two, is linked to each other by bearing pin between the two chi bars.

2, square gauge according to claim 1 is characterized in that: be provided with detail pen (2), track (3) in the said chi bar, draw a line (4) and button (5), detail pen links to each other with drawing a line, draws a line to slide along track at the drop-down moving detail pen of the control of button.

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