Multifunctional compasses

Abstract

The invention relates to the technical field of learning aids, in particular to a pair of multifunctional compasses; the multifunctional compasses are not prone to damaging drawing paper due to personal factors and affecting learning effects of students, and the practicality is relatively high; when the radius of a circular pattern drawn is too large, the overall stability of the multifunctional compasses is not affected, and the drawing effect is better, so that the use reliability is improved; the multifunctional compasses comprise a rotating buckle, a connecting frame, a supporting rod anda rotating shaft, the rotating buckle is installed on the top end of the connecting frame, and a cavity is formed between the lower side of the front side wall and the lower side of the rear side wallof the connecting frame; a working chamber is formed in the supporting rod, the supporting rod further includes a suction cup, a pressure plate, a pressure rod, two sets of transmission rods, and a sealing rubber ring, the sealing rubber ring is installed at an opening, a clamping mounting hole is formed in the sealing rubber ring, and the top end of the suction cup is mounted on the clamping mounting hole in a clamping mode; the multifunctional compasses further comprise a transverse frame, a mounting plate, a fixing ring, a fixing buckle, two sets of slide rails, two sets of threaded rods and two sets of threaded pipes, and the fixing buckle is installed on the inner side wall of the fixing ring.

Description

technical field [0001] The invention relates to the technical field of learning aids, in particular to a multifunctional compass. Background technique [0002] As we all know, the multifunctional compass is a device used by students to draw circular patterns when they need to make circular drawings in daily learning related subjects, so as to ensure the quality of drawing, thereby improving the efficiency and quality of students' daily learning. The field of teaching is widely used; the existing multifunctional compass includes a rotary buckle, a connecting frame, a support rod, a thimble, a fixed rod, a fixed clip and a rotating shaft, and the rotary buckle is installed on the top of the connecting frame, and the connecting frame front side A cavity is formed between the lower side of the wall and the lower side of the rear side wall, the front end and the rear end of the rotating shaft are respectively connected with the front side wall and the rear side wall of the cavity...

AI Technical Summary

Problems solved by technology

[0002] As we all know, the multifunctional compass is a device used by students to draw circular patterns when they need to make circular drawings in daily learning related subjects, so as to ensure the quality of drawing, thereby improving the efficiency and quality of students' daily learning. The field of teaching is widely used; the existing multifunctional compass includes a rotary buckle, a connecting frame, a support rod, a thimble, a fixed rod, a fixed clip and a rotating shaft, and the rotary buckle is installed on the top of the connecting frame, and the connecting frame front side A cavity is formed between the lower side of the wall and the lower side of the rear side wall, the front end and the rear end of the rotating shaft are respectively connected with the front side wall and the rear side wall of the cavity, and the top ends of the support rod and the fixed rod are respectively provided with Two sets of screw holes, the top ends of the support rod and the fixed rod are sleeved on the rotating shaft respectively, the thimble is installed on the bottom end of the support rod, the fixed clip is installed on the top of the fixed rod, and is mounted on the side wall of the fixed clip A through hole is provided on the pupil, and a bolt is provided at the pupil, and the right end of the bolt is inserted and screwed into the through hole; when this multifunctional compasses is used, the drawing pen used for drawing is passed through the fixing clip, Twist the bolt to fix its position, put the bottom end of the thimble against the drawing paper, rotate the fixed rod around the rotating shaft to form a proper angle with the support rod, and manually turn the rotary buckle to move the fixed rod around the support rod , the position of the support rod is fixed, and the fixed rod can drive the drawing pen to move and draw the required circular pattern; Students' learning effects are affected, and the practicability is low; and when the radius of the circular pattern drawn is too large, the overall stability of the device is low, and the drawing effect is poor, resulting in low reliability in use

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