CN215153469U

CN215153469U - Drawing teaching aid capable of being adsorbed on steel blackboard

Info

Publication number: CN215153469U
Application number: CN202121395066.7U
Authority: CN
Inventors: 张凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-14
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a drawing teaching aid that can adsorb on steel blackboard, including the set-square, run through on the set-square and seted up T type groove, be equipped with adjustment mechanism on the T type groove, run through on the set-square and seted up the sector groove, two square grooves have been seted up to the symmetry on the set-square, two square inslot all is equipped with a pulley, the set-square internal rotation is connected with the pivot, the both ends of pivot are located two square inslots respectively, and respectively with two pulley fixed connection, an acute angle department of set-square is equipped with slewing mechanism. The utility model discloses have multiple functions, can easily draw parallel lines, and the drawing process is very laborsaving, can also draw circularly, easy operation, convenience.

Description

Drawing teaching aid capable of being adsorbed on steel blackboard

Technical Field

The utility model relates to a teaching aid technical field especially relates to can adsorb the drawing teaching aid on the steel blackboard.

Background

The teacher often need utilize geometric figure to explain for the student at classroom teaching in-process, for the pleasing to the eye of figure, can use the teaching aid of drawing at the drawing in-process, these teaching aids of drawing simple structure only exist the difference in the size with the set-square that we used at ordinary times.

Drawing the figure on the blackboard for drawing more difficultly at the horizontal plane, need use bigger strength just can press the drawing teaching aid on one side, draw the figure on one side, the drawing teaching aid commonly used is mostly wooden set-square, ruler, this kind of teaching aid simple structure, and the function singleness only can satisfy the drawing demand of most basic, consequently need provide a drawing teaching aid multiple functional, convenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a drawing teaching aid capable of being adsorbed on a steel blackboard.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

can adsorb drawing teaching aid on steel blackboard, including the set-square, run through on the set-square and seted up T type groove, be equipped with adjustment mechanism on the T type groove, run through on the set-square and seted up fan-shaped groove, two square grooves have been seted up to the symmetry on the set-square, two all be equipped with a pulley in the square groove, the set-square internal rotation is connected with the pivot, the both ends of pivot are located two square inslots respectively, and respectively with two pulley fixed connection, an acute angle department of set-square is equipped with slewing mechanism.

Preferably, adjustment mechanism includes the bolt of sliding connection in T type inslot, the threaded end of bolt runs through T type groove and threaded connection has the screw sleeve, the telescopic one end of screw sleeve supports on the lateral wall of set-square.

Preferably, the rotating mechanism comprises a fixed cylinder fixedly connected to the triangular plate, a cylinder is connected to the fixed cylinder in a rotating mode, a convex lens is fixedly connected to the interior of one end, flushed with the triangular plate, of the cylinder, and a round hole is formed in one end, protruding out of the triangular plate, of the cylinder.

Preferably, a magnet piece is arranged in the triangular plate.

Preferably, the edges of the triangular plate are marked with scales, and the edges of the fan-shaped grooves are marked with angles.

Preferably, a soft pad is arranged on the relatively flat surface of the triangular plate, and a non-slip pad is arranged on the periphery of the round hole on the outer wall of the cylinder.

The utility model has the advantages that:

through setting up two pulleys of fixed connection in the pivot, when promoting the set-square and slide, two pulleys rotate in step, the translation takes place for the set-square, so the user just can easily draw many parallel lines, because set up magnet piece and cushion on the set-square, the magnet piece makes the set-square have the absorption function, the cushion has increased the frictional force of set-square and blackboard, consequently at the drawing in-process, the user only needs to use less power just can steadily press the set-square on the blackboard, and is very laborsaving, practical.

The distance between the chalk and the rotating mechanism is adjusted through the adjusting mechanism to serve as the radius of a circle, then the rotating mechanism serves as the circle center, the set square is rotated, the needed circle can be drawn at the designated position easily, the chalk used in drawing the circle is the chalk head which is extremely short in length and difficult to write, teaching resources are saved to a certain degree, and the drawing process is simple and convenient to operate.

Drawings

FIG. 1 is a schematic structural view of a drawing teaching aid capable of being adsorbed on a steel blackboard;

FIG. 2 is a cross-sectional view of the drawing teaching aid of the present invention, which can be adsorbed on a steel blackboard;

fig. 3 is an enlarged view of a point a in fig. 1.

In the figure: the device comprises a triangular plate 1, a 2T-shaped groove, a 3 fan-shaped groove, a 4 threaded sleeve, a 5 bolt, a 6 rotating shaft, a 7 square groove, a 8 pulley, a 9 soft cushion, a 10 fixed block, a 11 fixed cylinder, a 12 cylinder, a 13 convex lens and a 14 round hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a drawing teaching aid capable of being adsorbed on a steel blackboard comprises a set square 1, a T-shaped groove 2 is formed in the set square 1 in a penetrating manner, an adjusting mechanism is arranged on the T-shaped groove 2, a sector groove 3 is formed in the set square 1 in a penetrating manner, an angle is marked on the edge of the sector groove 3, two square grooves 7 are symmetrically formed in the set square 1, pulleys 8 are arranged in the two square grooves 7, a rotating shaft 6 is rotatably connected in the set square 1, two ends of the rotating shaft 6 are respectively positioned in the two square grooves 7 and respectively fixedly connected with the two pulleys 8, the set square 1 can be pushed along a straight line, the two pulleys 8 can rotate synchronously due to the fixed connection of the rotating shaft 6 and the two pulleys 8, so that a user can easily draw parallel lines, a rotating mechanism is arranged at an acute angle of the set square 1, and magnets are arranged in the set square 1 to enable the set square 1 to be adsorbed on the steel blackboard, the edge of the triangle 1 is marked with scales.

The utility model discloses in, adjustment mechanism includes the bolt 5 of sliding connection in T type groove 2, the screw thread end of bolt 5 runs through T type groove 2 and threaded connection has threaded sleeve 4, threaded sleeve 4's one end supports on the lateral wall of set-square 1, bolt 5's nut is square with T type groove adaptation, can slide in T type groove 2, nevertheless can not take place to rotate, when needing adjusting bolt 5 and threaded sleeve 4's position, only need to unscrew threaded sleeve 4, hold between the fingers threaded sleeve 4 or fixed block 10 and slide again, it can fix to screw up threaded sleeve 4 again when sliding suitable position, threaded sleeve 4's one is connected with bolt 5, the other end can be drawn with the chalk head rotation in.

Specifically, slewing mechanism includes fixed cylinder 11 of fixed connection on set square 1, and the 11 internal rotations of fixed cylinder are connected with drum 12, and fixedly connected with convex lens 13 in the one end that drum 12 and set square 1 flush, round hole 14 has been seted up to the one end that drum 12 salient set square 1, is equipped with cushion 9 on the lateral wall of set square 1 and the opposite one side of round hole 14, and drum 12 outer wall is equipped with the slipmat in round hole 14 periphery, and slewing mechanism regards as a fulcrum, and cooperation adjustment mechanism can regard as the compasses to use.

When the utility model is used, besides the basic use function, the utility model also has the functions of drawing parallel lines and circles, if the parallel lines are required to be drawn, a straight line can be drawn firstly, then the triangular plate 1 is pushed along the direction vertical to the straight line, because the rotating shaft 6 is fixedly connected with the two pulleys 8, the two pulleys 8 can synchronously rotate, the triangular plate 1 can always slide along the direction vertical to the straight line without deviation, thus the parallel lines can be easily drawn, in the process of moving the triangular plate 1, because the pulleys 8 and the cushion 9 are arranged, the triangular plate 1 can not generate harsh noise in the process of the surface translation of the blackboard, when the straight line is drawn, because the magnet sheet is arranged in the triangular plate 1, the attraction between the triangular plate 1 and the blackboard is generated, and the cushion 9 is arranged, the friction force between the triangular plate 1 and the blackboard is increased to a certain extent, therefore, the user can stably press the triangle 1 on the blackboard with little force; if circular drawing needs to be carried out, firstly, a chalk end which is extremely short in length and difficult to write is screwed into the threaded sleeve 4, the threaded sleeve 4 is unscrewed, the distance between the chalk end and the round hole 14 is adjusted by pinching the threaded sleeve 4 or the fixing block 10, then the triangular plate 1 is turned, the protruding end of the cylinder 12 is supported on a blackboard, the round hole 14 formed in the cylinder 12 is used for aligning the circle center, due to the arrangement of the convex lens 13, a user can clearly see whether the round hole 14 aligns with the circle center, finally, the cylinder 12 is pressed, the triangular plate 1 is rotated, and due to the fact that the outer wall of the cylinder 12 is located around the round hole 14, the circle center cannot deviate in the drawing process, and the user can easily draw the needed circular shape.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Can adsorb drawing teaching aid on steel blackboard, including set-square (1), its characterized in that, run through on set-square (1) and seted up T type groove (2), be equipped with adjustment mechanism on T type groove (2), run through on set-square (1) and seted up fan-shaped groove (3), two square groove (7), two have been seted up to the symmetry on set-square (1) square inslot (7) are interior all to be equipped with a pulley (8), set-square (1) internal rotation is connected with pivot (6), the both ends of pivot (6) are located two square inslot (7) respectively, and respectively with two pulley (8) fixed connection, an acute angle department of set-square (1) is equipped with slewing mechanism.

2. The drawing teaching aid that can adsorb on steel blackboard of claim 1, characterized in that, adjustment mechanism includes bolt (5) of sliding connection in T type groove (2), the threaded end of bolt (5) runs through T type groove (2) and threaded connection has threaded sleeve (4), the one end of threaded sleeve (4) is supported on the lateral wall of set square (1).

3. The drawing teaching aid capable of being adsorbed on the steel blackboard according to claim 1, wherein the rotating mechanism comprises a fixed cylinder (11) fixedly connected to the triangular plate (1), a cylinder (12) is rotatably connected to the fixed cylinder (11), a convex lens (13) is fixedly connected to the inner side of one end of the cylinder (12) which is flush with the triangular plate (1), and a round hole (14) is formed in one end of the cylinder (12) which protrudes out of the triangular plate (1).

4. The drawing teaching aid capable of being adsorbed on a steel blackboard according to claim 1, wherein a magnet piece is arranged in the set square (1).

5. The drawing teaching aid capable of being adsorbed on a steel blackboard according to claim 1, wherein the edge of the set square (1) is marked with scales, and the edge of the fan-shaped groove (3) is marked with an angle.

6. A drawing teaching aid capable of being adsorbed on a steel blackboard according to claim 3, wherein a soft cushion (9) is arranged on the side wall of one side of the set square (1) opposite to the round hole (14), and an anti-slip cushion is arranged on the periphery of the round hole (14) on the outer wall of the cylinder (12).