CN211106609U

CN211106609U - Compasses for mathematical education

Info

Publication number: CN211106609U
Application number: CN201922136149.3U
Authority: CN
Inventors: 蔡丽君; 朱文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-28
Anticipated expiration: 2029-12-03

Abstract

The utility model relates to a mathematics teaching compasses technical field just discloses a compasses that mathematics teaching used, the on-line screen storage device comprises a base, the last fixed surface of base is connected with the socket pipe, the interior top lateral wall fixedly connected with standard post of base, the inside of socket pipe rotates and is connected with the support column, the rotating tube has been cup jointed at the middle part of support column surface, the right side fixedly connected with scale of rotating tube surface, the multiunit scale groove has been seted up in the front of scale. This compasses that mathematical education was used through the cooperation of scale groove and instruction piece, will draw circular shape accuracy control within a less within range to guarantee the accuracy of circular drawing, and then guaranteed teaching efficiency, fastening bolt and knob cooperation make the sliding block can not take place to remove in the use and influence the accuracy of drawing, thereby guaranteed the accuracy of drawing of this compasses, and then guaranteed teaching efficiency, improved the practicality of this compasses.

Description

Compasses for mathematical education

Technical Field

The utility model relates to a mathematics teaching compasses technical field specifically is a compasses that mathematics teaching was used.

Background

Compasses are tools used for drawing circles or strings in mathematics and drawing, are commonly used for drawing by ruler compasses, a compass ruler is an essential teaching aid for teachers in mathematical teaching, circles are often required to be drawn on a blackboard in the mathematical teaching, and most teachers draw by the compasses; the traditional large compasses used for the lesson are composed of two feet, one foot is fixed, and the other corner is fixed with chalk; the compasses for mathematical education of prior art construct the accuracy not high, influence teaching efficiency, and the practicality is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a compasses that mathematical education used, the accuracy of the compasses mapping for mathematical education that has solved prior art is not high, influences teaching efficiency, the lower problem of practicality.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compasses that mathematical education used, includes the base, the last fixed surface of base is connected with the pipe sleeve, the interior top lateral wall fixedly connected with standard post of base, the inside rotation of pipe sleeve is connected with the support column, the rotating tube has been cup jointed at the middle part of support column surface, the right side fixedly connected with scale of rotating tube surface, the multiunit scale groove has been seted up in the front of scale, the sliding tray has all been seted up to the upper surface and the lower surface of scale, the left side of scale is provided with the removal clamping device, the left surface fixedly connected with spliced pole of scale, the lower fixed surface of spliced pole is connected with the connecting block, the lower surface of connecting block rotates and is connected with the roll pearl.

The movable clamping device comprises a sliding block, an indication block is fixedly connected to the front top of the sliding block, a fastening bolt is inserted into the middle of the upper surface of the sliding block, a knob is fixedly connected to the top end of the fastening bolt, an arch-shaped block is fixedly connected to the back of the sliding block, a limiting pipe is fixedly connected to the lower surface of the arch-shaped block, a chalk is inserted into the upper surface of the arch-shaped block, the bottom of the outer surface of the chalk is inserted into the limiting pipe, and an insertion button is arranged in the middle of the back of the arch-shaped block.

Preferably, the cross section of sliding block is the C font, sliding block and two sets of sliding tray sliding connection.

Preferably, the upper surface of sliding block has seted up the fixed orifices, and the inner wall of fixed orifices is provided with the internal thread, fixed orifices and fastening bolt threaded connection.

Preferably, the skid resistant course has been cup jointed to the surface of knob, and the surface of skid resistant course is provided with anti-skidding line, and the skid resistant course is formed by the silica gel preparation.

Preferably, the front end of the insertion button passes through the back surface of the arch block and contacts the top of the outer surface of the chalk.

Preferably, the width of the scale grooves is one millimeter, and the distance between two adjacent groups of scale grooves is ten millimeters.

(III) advantageous effects

Compared with the prior art, the utility model provides a compasses for mathematical education possesses following beneficial effect:

1. this compasses that mathematical education was used through the cooperation of scale groove and instruction piece, will draw circular shape accuracy control within a less within range to guarantee the accuracy of circular drawing, and then guaranteed teaching efficiency, fastening bolt and knob cooperation make the sliding block can not take place to remove in the use and influence the accuracy of drawing, thereby guaranteed the accuracy of drawing of this compasses, and then guaranteed teaching efficiency, improved the practicality of this compasses.

2. This compasses that mathematical education was used, the stability of this compasses has been strengthened through standard post and blackboard cooperation, and then the drawing accuracy of this compasses has been guaranteed, the teaching quality has been promoted, the spliced pole, the connecting block makes the compasses form stable structure with the cooperation of roll pearl, the stability of this compasses has been strengthened, thereby the accuracy that this compasses was drawn has been promoted, teaching quality and teaching efficiency have been guaranteed, the limiting tube has reduced the chalk and has appeared the probability that the condition that the fracture led to the fact the loss, thereby the waste of chalk has been reduced, economic benefits has been guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the vertical section of the structure of the present invention;

fig. 3 is a schematic structural view of the mobile clamping device of the present invention.

In the figure: 1. a base; 2. sleeving a pipe; 3. a standard column; 4. a support pillar; 5. rotating the tube; 6. a graduated scale; 601. a scale groove; 602. a sliding groove; 7. moving the clamping device; 701. a slider; 702. an indication block; 703. fastening a bolt; 704. a knob; 705. an arch block; 706. a limiting tube; 707. chalk; 708. a plug-in button; 8. connecting columns; 9. connecting blocks; 10. the beads were rolled.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the compasses for mathematical education comprise a base 1, wherein the upper surface of the base 1 is fixedly connected with a sleeve pipe 2, the inner top side wall of the base 1 is fixedly connected with a standard column 3, the standard column 3 is matched with a blackboard to enhance the stability of the compasses, thereby ensuring the drawing accuracy of the compasses, improving the teaching quality, the inner part of the sleeve pipe 2 is rotatably connected with a support column 4, the middle part of the outer surface of the support column 4 is sleeved with a rotating pipe 5, the right side of the outer surface of the rotating pipe 5 is fixedly connected with a graduated scale 6, the front of the graduated scale 6 is provided with a plurality of groups of graduated grooves 601, the upper surface and the lower surface of the graduated scale 6 are both provided with sliding grooves 602, the left side of the graduated scale 6 is provided with a movable clamping device 7, the left side surface of the graduated scale 6 is fixedly connected with a connecting column 8, the lower surface of, the compasses form stable structure by the cooperation of the connecting column 8, the connecting block 9 and the rolling bead 10, the stability of the compasses is enhanced, the drawing accuracy of the compasses is improved, and the teaching quality and the teaching efficiency are ensured.

The movable clamping device 7 comprises a sliding block 701, an indication block 702 is fixedly connected to the top of the front side of the sliding block 701, a scale groove 601 is matched with the indication block 702 to control the drawing accuracy of a circle within a smaller range, so that the drawing accuracy of the circle is ensured, and the teaching efficiency is further ensured, a fastening bolt 703 is inserted into the middle of the upper surface of the sliding block 701, a knob 704 is fixedly connected to the top end of the fastening bolt 703, the fastening bolt 703 is matched with the knob 704, so that the sliding block 701 cannot move during the use process to influence the drawing accuracy, so that the drawing accuracy of the compass is ensured, the teaching efficiency is further ensured, the practicability of the compass is improved, an arch block 705 is fixedly connected to the bottom of the back side of the sliding block 701, a limiting pipe 706 is fixedly connected to the lower surface of the arch block 705, chalk 707 is inserted into the upper surface of the arch block 705, the limiting pipe 706 reduces the probability of loss caused by the breakage of the chalk 707, thereby reducing the waste of the chalk 707 and ensuring the economic benefit, and the middle part of the back surface of the arch block 705 is provided with the plug-in button 708.

The utility model discloses in, thereby guarantee the drawing efficiency in order to guarantee the smooth and easy operation of this compasses, consequently set up the cross section of sliding block 701 into the C font, sliding block 701 and two sets of sliding tray 602 sliding connection, sliding connection can guarantee that the accommodation process of compasses is more smooth and easy to guarantee the drawing efficiency.

The utility model discloses in, in order to promote the accuracy of this compasses, need promote the stability of this compasses, consequently seted up the fixed orifices at the upper surface of sliding block 701 to the inner wall at the fixed orifices has set up the internal thread, fixed orifices and fastening bolt 703 threaded connection, thereby threaded connection can guarantee this compasses as far as possible and guarantee the accuracy of this compasses for stability.

The utility model discloses in, in order to guarantee the drawing efficiency of this compasses, consequently the skid resistant course that the one deck was formed by the silica gel preparation has been cup jointed at the surface of knob 704 to set up anti-skidding line at the surface of skid resistant course, the skid resistant course that has anti-skidding line has increased the frictional force between staff and the knob 704, has prevented to appear because of the condition that the phenomenon of skidding takes place to influence efficiency because of hand sweat, thereby has guaranteed drawing efficiency.

The utility model discloses in, in order to guarantee the drawing effect, consequently the front end of plug-in button 708 passes the back of arch-shaped piece 705 and contacts with the top of chalk 707 surface, thereby plug-in button 708 fixes chalk 707 and has guaranteed the stability of this compasses, and then has guaranteed the accuracy of this compasses to drawing effect has been guaranteed.

The utility model discloses in, in order to guarantee the drawing effect of this compasses, consequently set up the width of scale groove 601 into a millimeter, and adjacent two sets of distance of organizing between the scale groove 601 be ten millimeters, guaranteed the compasses accuracy with the size determination of scale groove 601 at an within range to the circular shape drawing effect has been guaranteed.

When the blackboard eraser is used, a circular sliding and moving clamping device 7 drawn according to needs stops sliding and moving the clamping device 7 when the front bottom of an indication block 702 is overlapped with the position of a needed scale groove 601, a knob 704 is rotated clockwise, the knob 704 drives a fastening bolt 703 to rotate, the knob 704 stops rotating when not rotating, the length of chalk 707 is adjusted, when the bottom end of the chalk 707 is positioned at the same horizontal line with the lower surface of a standard column 3, an inserting button 708 is rotated clockwise until the chalk is not rotated, a base 1 is placed on a blackboard, a palm is pressed against the top of a supporting column 4, the supporting column 4 moves downwards under the pressure of the palm, the supporting column 4 drives a sleeve pipe 2 to move downwards, the sleeve pipe 2 drives the standard column 3 to move downwards, when the lower surface of the standard column 3 is completely contacted with the blackboard surface, namely the supporting column 4 stops moving, a scale 6 is rotated along the axis of a rotating pipe 5, the graduated scale 6 drives the sliding block 701, the sliding block 701 drives the arch-shaped block 705, the arch-shaped block 705 drives the chalk 707 to rotate, and after the chalk 707 rotates three hundred sixty degrees, the process of drawing a circle is completed.

To sum up, this compasses that mathematical education used through the cooperation of scale groove 601 and instruction piece 702, will draw circular form accuracy control within a less scope to guarantee the accuracy of circular drawing, and then guaranteed teaching efficiency, fastening bolt 703 and knob 704 cooperation make sliding block 701 can not take place to remove in the use and influence the drawing accuracy, thereby guaranteed the drawing accuracy of this compasses, and then guaranteed teaching efficiency, improved the practicality of this compasses.

This compasses that mathematical education was used, the stability of this compasses has been strengthened through standard post 3 and blackboard cooperation, and then the drawing accuracy of this compasses has been guaranteed, the teaching quality has been promoted, spliced pole 8, connecting block 9 and the cooperation of roll pearl 10 make the compasses form stable structure, the stability of this compasses has been strengthened, thereby the accuracy that this compasses was drawn has been promoted, teaching quality and teaching efficiency have been guaranteed, limiting tube 706 has reduced the condition probability that chalk 707 breaks and causes the loss that appears, thereby the waste of chalk 707 has been reduced, economic benefits has been guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compasses that mathematical education was used, includes base (1), its characterized in that: the upper surface of the base (1) is fixedly connected with a sleeve pipe (2), the inner top side wall of the base (1) is fixedly connected with a standard column (3), a supporting column (4) is rotatably connected inside the sleeve pipe (2), a rotating pipe (5) is sleeved in the middle of the outer surface of the supporting column (4), a graduated scale (6) is fixedly connected on the right side of the outer surface of the rotating tube (5), the front surface of the graduated scale (6) is provided with a plurality of groups of graduated slots (601), the upper surface and the lower surface of the graduated scale (6) are both provided with sliding slots (602), a movable clamping device (7) is arranged on the left side of the graduated scale (6), a connecting column (8) is fixedly connected to the left side surface of the graduated scale (6), the lower surface of the connecting column (8) is fixedly connected with a connecting block (9), and the lower surface of the connecting block (9) is rotatably connected with a rolling ball (10);

the movable clamping device (7) comprises a sliding block (701), an indication block (702) is fixedly connected to the front top of the sliding block (701), a fastening bolt (703) is inserted into the middle of the upper surface of the sliding block (701), a knob (704) is fixedly connected to the top end of the fastening bolt (703), an arch block (705) is fixedly connected to the back of the sliding block (701), a limiting pipe (706) is fixedly connected to the lower surface of the arch block (705), a chalk (707) is inserted into the upper surface of the arch block (705), the bottom of the outer surface of the chalk (707) is inserted into the limiting pipe (706), and an insertion button (708) is arranged in the middle of the back of the arch block (705).

2. The compass for mathematical education as claimed in claim 1, wherein: the cross section of the sliding block (701) is C-shaped, and the sliding block (701) is connected with the two groups of sliding grooves (602) in a sliding mode.

3. The compass for mathematical education as claimed in claim 1, wherein: the upper surface of sliding block (701) has seted up the fixed orifices, and the inner wall of fixed orifices is provided with the internal thread, fixed orifices and fastening bolt (703) threaded connection.

4. The compass for mathematical education as claimed in claim 1, wherein: the surface of knob (704) has cup jointed the skid resistant course, and the surface of skid resistant course is provided with anti-skidding line, and the skid resistant course is formed by the silica gel preparation.

5. The compass for mathematical education as claimed in claim 1, wherein: the front end of the insertion button (708) passes through the back of the arch block (705) and contacts the top of the outer surface of the chalk (707).

6. The compass for mathematical education as claimed in claim 1, wherein: the width of the scale grooves (601) is one millimeter, and the distance between two adjacent sets of scale grooves (601) is ten millimeters.