CN213676155U

CN213676155U - Higher mathematics teaching auxiliary device that draws

Info

Publication number: CN213676155U
Application number: CN202021046839.6U
Authority: CN
Inventors: 蒋红兵
Original assignee: Chongqing Vocational College of Transportation
Current assignee: Chongqing Vocational College of Transportation
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-07-13
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses an advanced mathematics teaching drawing auxiliary device, including connecting plate one, the one end of connecting plate one is rotated and is connected fixed establishment, and the articulated connecting plate of other end is two, the articulated connecting plate of two other ends of connecting plate is three, chalk fixture is connected to the three other ends of connecting plate, all be equipped with the scale on connecting plate one, connecting plate two and the connecting plate three. Through pressing down the clamp plate, drive the piston downstream, can be through the fixed on the teaching board that fixed establishment can be firm to whole device takes place the displacement when preventing to draw, and then improves the precision of drawing, can adjust the height of movable plate through rotating the bolt through chalk fixture, and then can be that the chalk of different length all can with the face contact of teaching board, thereby improve the utilization efficiency of chalk. The utility model discloses not only can keep the stability when fixed, can also improve the utilization ratio of chalk, reduce the waste of resource, simple structure, convenient to use.

Description

Higher mathematics teaching auxiliary device that draws

Technical Field

The utility model relates to a mathematics teaching aid field specifically is an advanced mathematics teaching drawing auxiliary device.

Background

Teaching is a human-specific talent training activity consisting of teacher's teaching and student's learning. Through the activities, teachers purposefully, planningly and organically guide students to study actively and consciously and accelerate the mastering of basic knowledge and basic skills of cultural science, promote the comprehensive improvement of multiple aspects of qualities of the students, enable the students to become people required by the society to teach scientific knowledge of a system to the students, train the students to form the basic skills and develop the intelligence and the abilities of the students. The student can grow normally and healthily. The students were trained to have correct aesthetic views and knowledge and abilities to feel, appreciate and create beauty. The students can master the basic knowledge of modern industrial and agricultural production and learn the skills of using basic production tools. The teaching needs to complete the tasks with high quality and high efficiency, and one important aspect is to follow the teaching law, process the relationship of combining indirect experience and direct experience, teach knowledge and improve thought and thinking, teach knowledge and develop intelligence, and play the leading role of teachers and mobilize the relationship of enthusiasm and autonomy of students.

Present higher mathematics teaching is with drawing auxiliary device mostly adopts wooden compasses or wooden set-square to draw, the teacher is when using the compasses, the teaching board is probably punctured to the needle point of compasses, moreover, the needle point of compasses takes place to slide very easily in the use, thereby cause the deviation of drawing, and then influence the teaching progress, furthermore, current drawing auxiliary device all draws the operation through pressing from both sides tight chalk, however, current drawing auxiliary device can not effectually utilize up whole chalk, after only leaving a small part at every chalk, it is just very difficult to use to remain length.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide one kind can be fixed stable on the teaching board, can improve the utilization efficiency's of chalk advanced math teaching drawing auxiliary device.

In order to solve the above problem, the technical scheme of the utility model is that: the utility model provides an advanced mathematics teaching drawing auxiliary device, includes connecting plate one, the one end of connecting plate one is rotated and is connected fixed establishment, and the other end articulates connecting plate two, two other end of connecting plate articulate connecting plate three, the chalk fixture is connected to three other ends of connecting plate, all be equipped with the scale on connecting plate one, connecting plate two and the connecting plate three.

As an improvement, the fixing mechanism comprises a cylinder, the inside of the cylinder is of a hollow structure, a sealing cylinder is arranged in the cylinder, a connecting rod is inserted in the sealing cylinder, the connecting rod sequentially penetrates through the sealing cylinder and the cylinder, the top end of the connecting rod is connected with a pressing plate, the bottom end of the connecting rod is connected with a piston, a fixing column is arranged at the bottom of the inner wall of the sealing cylinder, a first spring is arranged on the fixing column in a winding mode, the top end of the first spring is abutted to the bottom surface of the piston, the bottom of the cylinder is connected with a sucker, air guide pipes are connected to two sides of the top of the sealing cylinder.

As an improvement, the chalk clamping mechanism comprises a mounting box, a round hole is formed in the top of the mounting box, a cavity is formed in the mounting box, a moving plate is slidably connected to the inner walls of two sides of the cavity, a through hole matched with the round hole is formed in one end of the moving plate, the inner walls of two sides of the through hole are connected with a second spring, the second spring is connected with an arc-shaped plate, a third spring is connected to the bottom of the other end of the moving plate, the bottom of the inner wall of the mounting box is connected to the three bottoms of the springs, a bolt is inserted into the.

As an improvement, the outer wall of the cylinder is provided with a groove, one end, far away from the second connecting plate, of the first connecting plate is connected with a circular ring, and the circular ring is rotatably connected in the groove.

As the improvement, the inner walls of two sides of the cavity are provided with sliding grooves, and two ends of the movable plate are provided with sliding blocks matched with the sliding grooves.

Compared with the prior art, the utility model the advantage lie in: through pressing down the clamp plate, drive the piston downstream, can be through the fixed on the teaching board that fixed establishment can be firm to whole device takes place the displacement when preventing to draw, and then improves the precision of drawing, can adjust the height of movable plate through rotating the bolt through chalk fixture, and then can be that the chalk of different length all can with the face contact of teaching board, thereby improve the utilization efficiency of chalk. The utility model discloses not only can keep the stability when fixed, can also improve the utilization ratio of chalk, reduce the waste of resource, simple structure, convenient to use.

Drawings

Fig. 1 is a structural view of the present invention.

Fig. 2 is an internal structure view of the fixing mechanism of the present invention.

Fig. 3 is an enlarged view of the chalk holding mechanism of the present invention.

Fig. 4 is an internal structure view of the chalk holding mechanism of the present invention.

As shown in the figure: 1. the chalk clamping mechanism comprises a fixing mechanism, 1.1, a cylinder, 1.2 sealing cylinders, 1.3, a connecting rod, 1.4, a pressing plate, 1.5, a piston, 1.6, a fixing column, 1.7, a first spring, 1.8, a sucker, 1.9, an air guide pipe, 2, a first connecting plate, 2.1, a circular ring, 3, a second connecting plate, 4, a third connecting plate, 5, a chalk clamping mechanism, 5.1, a cavity, 5.2, a sliding groove, 5.3, a circular hole, 6, a groove, 7, a sealing ring, 8, a movable plate, 9, a sliding block, 10, a through hole, 11, a second spring, 12, an arc-shaped plate, 13, a third spring, 14 and a bolt.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.

As shown in fig. 1 to 4, the advanced mathematics teaching drawing auxiliary device comprises a first connecting plate 2, one end of the first connecting plate 2 is rotatably connected with a fixing mechanism 1, the other end of the first connecting plate is hinged with a second connecting plate 3, the other end of the second connecting plate 3 is hinged with a third connecting plate 4, the other end of the third connecting plate 4 is connected with a chalk clamping mechanism 5, and scales are arranged on the first connecting plate 2, the second connecting plate 3 and the third connecting plate 4.

The fixing mechanism 1 comprises a cylinder 1.1, the inside of the cylinder 1.1 is of a hollow structure, a sealing cylinder 1.2 is arranged in the cylinder 1.1, a connecting rod 1.3 is inserted in the sealing cylinder 1.2, the connecting rod 1.3 sequentially penetrates through the sealing cylinder 1.2 and the cylinder 1.1, the top end of the connecting rod 1.3 is connected with a pressing plate 1.4, the bottom end of the connecting rod is connected with a piston 1.5, the bottom of the inner wall of the sealing cylinder 1.2 is provided with a fixing column 1.6, a spring 1.7 is wound on the fixing column 1.6, the top end of the spring 1.7 is abutted to the bottom surface of the piston 1.5, the bottom of the cylinder 1.1 is connected with a sucker 1.8, the two sides of the top of the sealing cylinder 1.2 are both connected with air guide tubes 1.9, the bottom ends of the air guide tubes 1.9 are communicated with the sucker 1.

Chalk fixture 5 includes the mounting box, the mounting box top is equipped with round hole 5.3, be equipped with cavity 5.1 in the mounting box, sliding connection movable plate 8 on the inner wall of cavity 5.1 both sides, 8 one end of movable plate is equipped with the through-hole 10 with round hole 5.3 adaptation, spring two 11 is all connected to through-hole 10 both sides inner wall, arc 12 is connected to spring two 11, movable plate 8 other end bottom coupling spring three 13, mounting box inner wall bottom is connected to spring three 13 bottom, bolt 14 is inserted at the mounting box top, 14 bottom butt movable plates 8 of bolt.

The outer wall of the cylinder 1.1 is provided with a groove 6, one end of the connecting plate I2, far away from the connecting plate II 3, is connected with a circular ring 2.1, the circular ring 2.1 is rotatably connected in the groove 6, the inner walls of two sides of the cavity 5.1 are respectively provided with a sliding groove 5.2, and two ends of the moving plate 8 are provided with sliding blocks 9 matched with the sliding grooves 5.2.

In specific use, the device is placed close to the teaching board, one hand presses the pressure plate 1.4 to drive the piston 1.5 to extrude the spring 1.7, the piston 1.5 is tightly matched with the inside of the sealing cylinder 1.2, after the piston 1.5 descends, the space at the top of the sealing cylinder 1.2 is enlarged, the air in the sucker 1.8 enters the sealing cylinder 1.2 through the air duct 1.9, the sucker 1.8 is tightly attached to the surface of the teaching board under the action of the atmospheric pressure, thereby fixing the position, adjusting the states of the first connecting plate 2, the second connecting plate 3 and the third connecting plate 4, can draw circles or straight lines, chalk is inserted into the through hole 10 from the round hole 5.3 and clamped by the second spring 11 and the arc-shaped plate 12, the drawing can be started, and when the chalk is used up by one minute, the height of the moving plate 8 can be adjusted by rotating the bolt 14 downward, so that the shorter chalk can still contact with the surface of the teaching board.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides an advanced mathematics teaching drawing auxiliary device which characterized in that: the chalk clamping device is characterized by comprising a first connecting plate (2), one end of the first connecting plate (2) is rotatably connected with a fixing mechanism (1), the other end of the first connecting plate is hinged with a second connecting plate (3), the other end of the second connecting plate (3) is hinged with a third connecting plate (4), the other end of the third connecting plate (4) is connected with a chalk clamping mechanism (5), and scales are arranged on the first connecting plate (2), the second connecting plate (3) and the third connecting plate (4).

2. The advanced mathematics teaching drawing auxiliary device of claim 1, characterized in that: the fixing mechanism (1) comprises a cylinder (1.1), the interior of the cylinder (1.1) is of a hollow structure, a sealing cylinder (1.2) is arranged in the cylinder (1.1), a connecting rod (1.3) is inserted in the sealing cylinder (1.2), the connecting rod (1.3) sequentially penetrates through the sealing cylinder (1.2) and the cylinder (1.1), the top end of the connecting rod (1.3) is connected with the pressure plate (1.4), the bottom end is connected with the piston (1.5), a fixed column (1.6) is arranged at the bottom of the inner wall of the sealing cylinder (1.2), a first spring (1.7) is wound on the fixed column (1.6), the top end of the first spring (1.7) is abutted against the bottom surface of the piston (1.5), the bottom of the cylinder (1.1) is connected with a sucker (1.8), the two sides of the top of the sealing cylinder (1.2) are both connected with air ducts (1.9), the bottom end of each air duct (1.9) is communicated with a sucker (1.8), and a sealing ring (7) is arranged at the joint of the connecting rod (1.3) and the sealing cylinder (1.2).

3. The advanced mathematics teaching drawing auxiliary device of claim 1, characterized in that: chalk fixture (5) include the mounting box, the mounting box top is equipped with round hole (5.3), be equipped with cavity (5.1) in the mounting box, sliding connection movable plate (8) on cavity (5.1) both sides inner wall, movable plate (8) one end is equipped with through-hole (10) with round hole (5.3) adaptation, through-hole (10) both sides inner wall all connects spring two (11), arc (12) are connected in spring two (11), movable plate (8) other end bottom connecting spring three (13), mounting box inner wall bottom is connected to spring three (13) bottom, bolt (14) are inserted at the mounting box top, bolt (14) bottom butt movable plate (8).

4. The advanced mathematics teaching drawing auxiliary device of claim 2, characterized in that: the outer wall of the cylinder (1.1) is provided with a groove (6), one end of the connecting plate I (2) far away from the connecting plate II (3) is connected with a ring (2.1), and the ring (2.1) is rotatably connected in the groove (6).

5. The advanced mathematics teaching drawing auxiliary device of claim 3, characterized in that: the cavity (5.1) both sides inner wall all is equipped with spout (5.2), movable plate (8) both ends are equipped with slider (9) with spout (5.2) adaptation.