Auxiliary drawing equipment for teaching

Abstract

The utility model discloses auxiliary drawing equipment for teaching, which relates to the technical field of auxiliary drawing for teaching, and comprises a sliding groove arranged on a cylinder, a sliding plate sliding in the sliding groove, a circular ring fixed at the bottom of the cylinder, a guide post fixed at the top of the circular ring, and the top of the guide post penetrating through the sliding plate is fixedly connected with the bottom of a sliding frame. The chalk broken in the cylinder can be taken out by arranging the pulling mechanism, other tools are not needed, convenience is enhanced, meanwhile, the position of the chalk can be adjusted through the sliding frame and the rectangular plate, circles with different radiuses can be drawn conveniently, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary drawing for teaching, in particular to an auxiliary drawing device for teaching. Background Art

[0002] In mathematics and drawing, teaching aids are tools used to draw circles or chords, and are often used in ruler and compass construction.

[0003] Patent number CN215244044U is a compass for drawing circles on a blackboard for geography teaching. A handle is provided on the outside of the turntable fixing frame, making the compass more stable to hold and use. A pull rope is wrapped around the outside of the compass turntable. By pulling the pull rope, the circumferential arm can be driven to rotate to draw a circle, avoiding manual swinging of the circumferential arm, which is simpler and more convenient. At the same time, the chalk fixing tube is divided into a chalk mounting tube and a chalk fixing cap. A spring is provided between the chalk fixing cap and the chalk mounting tube. When drawing a circle, the spring can squeeze the chalk, making the drawn circle clearer and more regular, and more practical.

[0004] However, research has shown that existing teaching auxiliary drawing equipment still has the following defects:

[0005] When the existing teaching auxiliary drawing equipment inserts the chalk into the cylinder and draws a circle, the chalk may break during the process of drawing the circle. It is difficult to remove the chalk without the help of tools, which delays the teaching time. Therefore, it is necessary to optimize the teaching auxiliary drawing equipment through technological innovation and design optimization. Utility Model Content

[0006] In the existing teaching auxiliary drawing device, when the chalk is inserted into the cylinder and a circle is drawn, the chalk may break during the process of drawing the circle. It is difficult to remove the chalk without the help of tools, which delays the teaching time. In order to solve the above problems, the embodiment of the present application provides a teaching auxiliary drawing device. By setting a pulling mechanism, the chalk broken inside the cylinder can be removed without the help of other tools, thereby enhancing convenience. At the same time, the position of the chalk can be adjusted by the sliding frame and the rectangular plate, which facilitates the drawing of circles of different radii and improves practicality.

[0007] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0008] An auxiliary drawing device for teaching, comprising:

[0009] main body;

[0010] The sliding frame is sleeved on the main body. The bottom of the sliding frame is provided with a cylinder that can be stuffed with chalk. The cylinder is provided with a pulling mechanism for facilitating the removal of the sealed chalk from the cylinder.

[0011] In a possible implementation, the main body includes a rectangular plate, a rotating column is rotated at the bottom of one end of the rectangular plate, and a suction cup is fixed at the bottom of the rotating column.

[0012] In one possible implementation, the pulling mechanism includes a sliding groove on the cylinder, a sliding plate slides inside the sliding groove, a ring is fixed to the bottom of the cylinder, a guide column is fixed to the top of the ring, the top of the guide column passes through the sliding plate and is fixedly connected to the bottom of the sliding frame, and a spring is provided on the outside of the guide column between the ring and the sliding frame. When the sliding plate is pulled downward, the sliding plate will slide in the sliding groove, and at the same time, the sliding plate will slide on the guide column and squeeze the spring, so that the sliding plate will bring the chalk out of the cylinder. When the sliding plate is released, the sliding plate will reset under the action of the spring.

[0013] In one possible implementation, a screw rod threadedly connected to the sliding frame passes through the top of the sliding frame, and a movable plate is provided between the bottom of the screw rod and the top of the rectangular plate. The bottom end of the screw rod is rotatably connected to the top of the movable plate. By rotating the screw rod, the screw rod can drive the movable plate to move downward, and the movable plate will cooperate with the bottom of the sliding frame to clamp the rectangular plate, so as to facilitate the adjustment of the position of the chalk at the bottom of the sliding frame.

[0014] In one possible implementation, the rectangular plate is provided with a scale, the sliding frame is provided with a rectangular opening, and the sliding frame is provided with an arrow. When the sliding frame is slid, the scale can be seen from the rectangular opening, which facilitates more precise adjustment of the position of the chalk at the bottom of the fixed frame.

[0015] In a possible implementation, stoppers are fixed to both ends of the top of the rectangular plate, and the height of the stoppers is greater than the height of the sliding frame to prevent the sliding frame from falling off the rectangular plate when it is not fixed to the rectangular plate.

[0016] In a possible implementation, a fixing block is fixed to the top of the screw rod, and the fixing block is provided with anti-slip grooves to facilitate the rotation of the screw rod through the fixing block.

[0017] In a possible implementation, fixed plates are fixed to both ends of the sliding plate, and the fixed plates are circular, so that the sliding plate can be pulled by the fixed plates.

[0018] In summary, the present invention has at least one of the following beneficial technical effects:

[0019] 1. Pull the sliding plate downwards, and the sliding plate will slide in the sliding groove. At the same time, the sliding plate will slide on the guide column and squeeze the spring, and the sliding plate will bring the chalk out of the cylinder. Release the sliding plate, and the sliding plate will return to its original position under the action of the spring, making it easier to take out the chalk broken inside the cylinder.

[0020] 2. Slide the sliding frame and adjust the position of the chalk according to the scale on the rectangular plate. When the sliding frame slides to the appropriate position of the rectangular plate, turn the screw rod, and the screw rod drives the movable plate to move downward. The movable plate will cooperate with the bottom of the sliding frame to clamp the rectangular plate, so as to facilitate the adjustment of the position of the chalk at the bottom of the sliding frame and facilitate the drawing of circles of different radii. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the local structure of the utility model.

[0023] Figure numerals: 1. suction cup; 2. rotating column; 3. stop block; 4. rectangular plate; 5. scale; 6. sliding frame; 7. fixed block; 8. rectangular opening; 9. cylinder; 10. screw rod; 11. moving plate; 12. arrow; 13. fixed plate; 14. guide column; 15. ring; 16. sliding groove; 17. spring; 18. sliding plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the present invention to clearly and completely describe the technical solution of the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The instrument placement rack involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] This embodiment introduces a specific structure of a teaching auxiliary drawing device. Figure 1-Figure 2 As shown, a teaching auxiliary drawing device includes:

[0026] main body;

[0027] The sliding frame 6 is sleeved on the main body. The bottom of the sliding frame 6 is provided with a cylinder 9 that can be stuffed with chalk. The cylinder 9 is provided with a pulling mechanism that is convenient for taking the sealed pen out of the cylinder 9.

[0028] The main body includes a rectangular plate 4 , a rotating column 2 is rotated at the bottom of one end of the rectangular plate 4 , and a suction cup 1 is fixed at the bottom of the rotating column 2 .

[0029] When the seal pen accidentally breaks inside the cylinder 9 and it is necessary to take the seal pen out of the cylinder 9, the pulling mechanism includes a sliding groove 16 provided on the cylinder 9, a sliding plate 18 slides inside the sliding groove 16, a circular ring 15 is fixed to the bottom of the cylinder 9, a guide column 14 is fixed to the top of the ring 15, the top of the guide column 14 passes through the sliding plate 18 and is fixedly connected to the bottom of the sliding frame 6, a spring 17 is sleeved on the outside of the guide column 14 between the circular ring 15 and the sliding frame 6, and the sliding plate 18 is pulled downward, and the sliding plate 18 will slide in the sliding groove 16, and at the same time, the sliding plate 18 will slide on the guide column 14 and squeeze the spring 17, and the sliding plate 18 will bring the chalk out of the cylinder 9, and the sliding plate 18 will be reset under the action of the spring 17 when the sliding plate 18 is released.

[0030] When it is necessary to adjust the distance between the chalk and the rotating column 2 to draw circles of different diameters, a screw rod 10 threadedly connected to the sliding frame 6 is passed through the top of the sliding frame 6, and a movable plate 11 is provided between the bottom of the screw rod 10 and the top of the rectangular plate 4. The bottom end of the screw rod 10 is rotatably connected to the top of the movable plate 11. By rotating the screw rod 10, the screw rod 10 can drive the movable plate 11 to move downward, and the movable plate 11 will cooperate with the bottom of the sliding frame 6 to clamp the rectangular plate 4, so as to facilitate the adjustment of the position of the chalk at the bottom of the sliding frame 6.

[0031] When the sliding frame 6 is slid, a scale 5 is provided on the rectangular plate 4, a rectangular opening 8 is opened on the sliding frame 6, and an arrow 12 is provided on the sliding frame 6. When the sliding frame 6 is slid, the scale 5 can be seen from the rectangular opening 8, which facilitates more accurate adjustment of the position of the chalk at the bottom of the fixed frame.

[0032] In addition, stoppers 3 are fixed at both ends of the top of the rectangular plate 4 . The height of the stoppers 3 is greater than the height of the sliding frame 6 , thereby preventing the sliding frame 6 from falling off the rectangular plate 4 when it is not fixed to the rectangular plate 4 .

[0033] When the screw rod 10 is rotated, a fixing block 7 is fixed on the top of the screw rod 10 . The fixing block 7 is provided with anti-slip grooves to facilitate the rotation of the screw rod 10 through the fixing block 7 .

[0034] When the sliding plate 18 is pulled, fixed plates 13 are fixed to both ends of the sliding plate 18 . The fixed plates 13 are circular, which makes it easy to pull the sliding plate 18 through the fixed plates 13 .

[0035] When the teacher needs to draw a circle, the pen seal can be inserted into the cylinder 9, the sliding frame 6 can be slid and the position of the chalk can be adjusted according to the scale 5 on the rectangular plate 4. When the sliding frame 6 slides to the appropriate position of the rectangular plate 4, the screw rod 10 is rotated, and the screw rod 10 drives the movable plate 11 to move downward. The movable plate 11 will cooperate with the bottom of the sliding frame 6 to clamp the rectangular plate 4, so as to facilitate the adjustment of the position of the chalk at the bottom of the sliding frame 6, adsorb the suction cup 1 on the blackboard, and rotate the rectangular plate 4 with the rotating column 2 as the axis. The rectangular plate 4 will drive the pen seal to draw a circle. After the circle is drawn, the pen seal can be directly pulled out of the cylinder 9. If the chalk end is inside the cylinder 9, pull the sliding plate 18 downward. The sliding plate 18 will slide in the sliding groove 16. At the same time, the sliding plate 18 will slide on the guide column 14 and squeeze the spring 17. The sliding plate 18 will bring the chalk out of the cylinder 9, release the sliding plate 18, and the sliding plate 18 will reset under the action of the spring 17.

[0036] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A teaching auxiliary drawing device, characterized in that: include: main body; A sliding frame (6) is sleeved on the main body, a cylinder (9) is provided at the bottom of the sliding frame (6) for inserting chalk, and a pulling mechanism is provided on the cylinder (9) for facilitating the removal of the sealed chalk from the cylinder (9); The pulling mechanism includes a sliding groove (16) provided on a cylinder (9), a sliding plate (18) sliding inside the sliding groove (16), a circular ring (15) fixed to the bottom of the cylinder (9), a guide column (14) fixed to the top of the circular ring (15), the top of the guide column (14) passing through the sliding plate (18) and fixedly connected to the bottom of the sliding frame (6), and a spring (17) sleeved on the outside of the guide column (14) located between the circular ring (15) and the sliding frame (6).

2. The teaching auxiliary drawing device according to claim 1, characterized in that: The main body comprises a rectangular plate (4), a rotating column (2) is rotatably provided at the bottom of one end of the rectangular plate (4), and a suction cup (1) is fixed at the bottom of the rotating column (2).

3. The teaching auxiliary drawing device according to claim 1, characterized in that: A screw rod (10) passes through the top of the sliding frame (6), a movable plate (11) is provided between the bottom of the screw rod (10) and the top of the rectangular plate (4), and the bottom end of the screw rod (10) is rotatably connected to the top of the movable plate (11).

4. The teaching auxiliary drawing device according to claim 2, characterized in that: The rectangular plate (4) is provided with a scale (5), the sliding frame (6) is provided with a rectangular opening (8), and the sliding frame (6) is provided with an arrow (12).

5. The teaching auxiliary drawing device according to claim 4, characterized in that: Stoppers (3) are fixed at both ends of the top of the rectangular plate (4), and the height of the stoppers (3) is greater than the height of the sliding frame (6).

6. The teaching auxiliary drawing device according to claim 3, characterized in that: A fixing block (7) is fixed on the top of the screw rod (10), and the fixing block (7) is provided with anti-slip lines.

7. The teaching auxiliary drawing device according to claim 1, characterized in that: Fixed plates (13) are fixed to both ends of the sliding plate (18), and the fixed plates (13) are circular.

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