CN214647185U - Multipurpose set square - Google Patents

Abstract

The utility model discloses a multipurpose set square, its structure includes the body of right triangle shape, spout and slider etc, be mainly be equipped with the fixed point when being located the arbitrary acute angle department of right triangle's rotation point as drawing the circle on the body, be equipped with on the slider again and supply nib male jack, and also can the synchronous positioning slider position in the spout when the nib inserts in the jack, also fix a position the slider with confirming the circle diameter through inserting of nib jack on the slider exactly, only need to promote the slider by nib in the jack at this moment and rotate around the rotation point and can form the drawing circle fast. Obviously, the rotary point determined by the position in the structure is used as the fixed point, the displacement of the fixed point in the circle drawing process can be effectively reduced, the pen point is inserted into the jack and simultaneously positioned in the circle diameter, the trouble that the traditional circle drawing structure needs to be additionally provided with a bolt or a screw for auxiliary fixation is also saved, and the structure has the advantages of simplicity in operation, flexibility in use, accurate circle drawing size, reliable use effect and the like.

Description

Multipurpose set square

Technical Field

The utility model relates to a set square in teaching aid or learning aid, specifically indicate a multipurpose set square.

Background

The set-square is teaching aid or learning aid commonly used, mainly used assists the teacher, the student draws the straightway or measures object length distance, still can design the circle structure of drawing on some set-squares, the application range of set-square has greatly been increased, but these circle structures of drawing of at present integrated on the set-square have a lot of defects, for example these circle structures all adopt and set up spout and slider on the right angle triangle shape body of set-square, press one of them acute angle as the fixed point of right angle triangle during the use, another hand is dialled the slider and is slided to suitable circle diameter position in the spout after, must fix a position the slider in the spout through bolt or screw, also fix a position circle diameter size, then just can promote the slider and rotate around the fixed point and realize drawing the circle. Obviously, the fixed point is determined by the pressing acute angle, and the displacement of the fixed point is easy to occur in the process of pushing the sliding block to rotate to draw a circle. The sliding block is shifted and positioned in the sliding groove and is fixed in an auxiliary mode through bolts or screws, the accuracy of circle drawing size is influenced by the design structure and the use mode, the operation process is quite troublesome and labor-consuming, and the use effect is poor.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect and provide a multipurpose set square easy operation, use in a flexible way, drawing circle size accuracy, result of use are reliable.

The technical problem of the utility model is realized through following technical scheme:

the utility model provides a multipurpose set-square, includes the body of right triangle-shaped shape, is equipped with the spout that is on a parallel with the right triangle hypotenuse on this body and the slider of reciprocating sliding setting in the spout, the body on be equipped with the turning point that is located the arbitrary acute angle department of right triangle, the slider on be equipped with and supply nib male jack, and the nib inserts the position of synchronous positioning slider in the spout in the jack to promote the slider to rotate and form the drawing circle around the turning point.

The sliding block is composed of a top plate and foot plates respectively arranged on two sides of the top plate, the upper end of each foot plate on each side is connected to the top plate, the lower end of each foot plate is suspended with a slide way, the foot plates on two sides are respectively assembled on two sides of the slide groove in a sliding mode through the slide ways, and the insertion holes are formed in the top plate.

The foot plates on the two sides are respectively a straight foot plate vertical to the top plate and an inclined foot plate inclined inwards relative to the top plate. .

The inclined foot plate upper slide way has elasticity relative to the joint of the inclined foot plate and the top plate, and the pen point is inserted into the insertion hole until pushing the inclined surface of the inclined foot plate and driving the inclined foot plate to elastically deform to push the slide way to abut against the slide groove to form positioning.

The inner side surface of the straight foot plate is provided with a balance block.

The body on be equipped with along the numerical value scale of right triangle hypotenuse distribution, the slider on be equipped with the little pointer of outside extension, this little pointer receives the slider slip and with numerical value scale formation is instructed.

The rotating point has a magnetic adsorption function.

The body is provided with a protractor, and the circle center of the protractor is provided with a large pointer for swinging to indicate the protractor scales.

Compared with the prior art, the utility model discloses mainly be add the turning point that is located the arbitrary acute angle department of right triangle on the body, also regard this turning point as the fixed point when drawing the circle, be equipped with again on the slider and supply nib male jack to still can fix a position the slider in the spout in the nib inserts the jack in step, also fix a position the slider with confirming the circle diameter through inserting of nib jack on the slider exactly, nib promotion slider in the jack is only needed to rotate around the turning point by this moment and can form the drawing circle fast. Obviously, in the structure, the rotating point determined by the position is used as the fixed point, so that the displacement of the fixed point in the circle drawing process can be effectively reduced, the circle diameter is synchronously positioned when the pen point is inserted into the jack, and the trouble that the traditional circle drawing structure needs to be additionally provided with bolts or screws for auxiliary fixation is also saved; therefore, the design structure and the use mode have the advantages of simple operation, flexible use, accurate circle drawing size, reliable use effect and the like on the basis of keeping the use function of the traditional set square.

Drawings

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

Fig. 2 is a schematic structural diagram of a slider.

Fig. 3 is a top view of fig. 2.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 3, the hand-held instrument comprises a body 1, a right triangle bevel edge 11, a numerical scale 12, a sliding groove 2, a sliding block 3, a sliding block 31, a top plate 32, a straight foot plate 32, an inclined foot plate 33, a sliding way 34, a small pointer 35, a balance block 36, an insertion hole 37, a rotation point 4, a protractor 5 and a large pointer 6.

A multipurpose triangle is shown in figure 1, belongs to a teaching aid or a learning aid, and structurally comprises a right triangle-shaped body 1, wherein the right triangle shape mainly refers to a triangle of 30 degrees, 60 degrees and 90 degrees and a triangle of 45 degrees, 45 degrees and 90 degrees, and the triangle of 30 degrees, 60 degrees and 90 degrees is selected for detailed description in the embodiment.

The body 1 is usually made of transparent plastics, and a sliding groove 2 parallel to the bevel edge 11 of the right triangle and a sliding block 3 arranged in the sliding groove in a reciprocating sliding manner are arranged on the body 1.

The sliding block 3 is composed of a top plate 31 of a connected structure as shown in fig. 2 and 3 and foot plates respectively arranged at two sides of the top plate, the upper end of each foot plate at each side is connected to the top plate 31, the lower end of each foot plate is provided with a slideway 34 in a hanging manner, and the foot plate at one side, namely the foot plate at the left side shown in fig. 2, is a straight foot plate 32 vertical to the top plate 31; the other side foot board, that is, the right side foot board shown in fig. 2 is an inclined foot board 33 inclined inwards relative to the top board 31, so that the slide way 34 on the inclined foot board will have certain elasticity relative to the joint of the inclined foot board 33 and the top board 31.

And the sliding block 3 can be respectively assembled on the two sides of the sliding groove 2 in a sliding way through the slide ways 34 on the straight foot plate 32 and the inclined foot plate 33, thereby forming the flexible sliding of the sliding block 3 in the sliding groove 2.

The sliding block 3 is provided with an insertion hole 37, the insertion hole is a circular hole penetrating the middle part of the top plate 31, the insertion hole 37 must be used for inserting pen points such as chalk, marking pen, pencil and fountain pen, when the pen points are inserted into the insertion hole 37 until pushing the inclined plane of the inclined foot plate 33, the inclined foot plate is driven to generate elastic deformation, and then the sliding way 34 on the inclined foot plate is pushed to abut against the sliding groove 2 to fix the sliding block 3, namely the position of the sliding block 3 in the sliding groove 2 is positioned; on the contrary, when the pen point is separated from the insertion hole 37, the inclined foot plate 33 drives the slide way 34 to elastically return to release the slide groove 2, and the slide block 3 restores the sliding in the slide groove 2 again. The positioning mode of the structure is actually similar to the principle that the plug is inserted into the socket to push the conductive elastic sheet to expand.

The inner side surface of the straight foot plate 32 is provided with a balance block 36 for ensuring the sliding stability of the sliding block 3 in the sliding groove 2, the body 1 is also provided with numerical value scales 12 distributed along the hypotenuse 11 of the right triangle, and correspondingly, the sliding block 3 is provided with a small pointer 35 extending outwards, the small pointer can be indicated by the sliding block 3 sliding and the numerical value scales 12, so that the accurate selection of the circle diameter scale value is facilitated.

Meanwhile, the rotating point 4 positioned at any acute angle of the right triangle is arranged on the body 1 to be used as a fixed point when drawing a circle, the rotating point 4 is arranged at the acute angle of 60 degrees in the embodiment, the rotating point 4 has a magnetic adsorption function, when the specific structure design is carried out, a bearing can be embedded into the body 1 to form rotation, only a magnetic block needs to be fixed in the bearing, and the body 1 can freely rotate around the rotating point 4 at the moment.

In addition, the body 1 is provided with a protractor 5 for angle measurement, and a large pointer 6 for swinging to indicate protractor scales is arranged at the center of the protractor 5 so as to read an angle value conveniently.

The drawing process of the multipurpose triangle is as follows: firstly, the rotating point 4 is used as a fixed point when a circle is drawn, then the sliding block 3 is shifted to slide to a selected position in the sliding groove 2, then the pen point is inserted into the inserting hole 37 to synchronously position the position of the sliding block 3 in the sliding groove 2, namely the sliding block 3 is positioned by inserting the pen point into the inserting hole 37 to lock the diameter of the circle, and finally the pen point in the inserting hole 37 continuously pushes the sliding block 3 to rotate around the rotating point 4, so that the circle can be quickly drawn.

Obviously, in the structure, the rotating point 4 with determined position is used as a fixed point, so that the displacement of the fixed point in the circle drawing process can be effectively reduced, the circle diameter is synchronously positioned when the pen point is inserted into the insertion hole 37, and the trouble that the traditional circle drawing structure needs to be additionally provided with bolts or screws for auxiliary fixation is also saved; therefore, the design structure and the use mode have the advantages of simple operation, flexible use, accurate circle drawing size, reliable use effect and the like on the basis of keeping the use function of the traditional set square.

The design size of the utility model is not limited, when the triangle is designed into a large size, the triangle can be used as a teaching tool for teachers to use in teaching, the magnetic adsorption function of the rotating point 4 is utilized to adsorb and fix the triangle on the blackboard as a fixed point when drawing circles, and the inserting hole 37 is inserted with pencils such as chalks or marker pens and the like for positioning the slider 3 and drawing circles; when the triangle is designed into a small-size triangle, the triangle can be used as a learning tool for students to learn, the rotating point 4 can be pressed at the moment to be used as a fixed point when drawing circles, and the pen points such as pencils or water pens are inserted into the insertion holes 37 to be used as a tool for positioning the sliding block 3 and drawing circles.

The above description is only an embodiment of the present invention, and those skilled in the art should understand that any structural design similar to the embodiment is included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a multipurpose set square, includes body (1) of right triangle-shaped shape, is equipped with spout (2) and the slider (3) of reciprocating sliding setting in the spout that are on a parallel with right triangle hypotenuse (11) on this body, its characterized in that body (1) on be equipped with rotation point (4) that are located any acute angle department of right triangle, slider (3) on be equipped with and supply nib male jack (37), and the nib inserts the position of synchronous positioning slider (3) in spout (2) in jack (37) to promote slider (3) to rotate and form the drawing circle around rotation point (4).

2. The multipurpose triangle according to claim 1, wherein the sliding block (3) is composed of a top plate (31) and foot plates respectively arranged at two sides of the top plate, the upper end of each foot plate is connected to the top plate (31), the lower end of each foot plate is provided with a suspended slideway (34), the foot plates at two sides are respectively assembled at two sides of the sliding chute (2) in a sliding manner through the slideways (34), and the insertion holes (37) are arranged on the top plate (31).

3. A multi-purpose set square as claimed in claim 2, wherein the two side foot plates are respectively a straight foot plate (32) perpendicular to the top plate (31) and an inclined foot plate (33) inclined inward relative to the top plate (31).

4. The multipurpose triangle according to claim 3, wherein the upper slide way (34) of the inclined foot plate (33) has elasticity relative to the joint of the inclined foot plate (33) and the top plate (31), and the pen point is inserted into the insertion hole (37) until pushing the inclined surface of the inclined foot plate (33) and driving the inclined foot plate to elastically deform to push the slide way (34) to abut against the chute (2) to form positioning.

5. A multi-purpose set square as claimed in claim 3, wherein the inner side of the straight leg plate (32) is provided with a balance weight (36).

6. A multi-purpose set square according to claim 3, characterized in that the body (1) is provided with a number scale (12) distributed along the hypotenuse (11) of the right triangle, the slider (3) is provided with a small pointer (35) extending outwards, and the small pointer is slid by the slider (3) to form an indication with the number scale (12).

7. A multi-purpose set square according to claim 1, wherein the rotation point (4) has magnetic attraction.

8. The multipurpose set square according to claim 3, wherein the body (1) is provided with a protractor (5), and the center of the protractor is provided with a large pointer (6) which can swing to indicate the scale of the protractor.

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