CN210706649U

CN210706649U - Mathematics teaching aid

Info

Publication number: CN210706649U
Application number: CN201921603160.XU
Authority: CN
Inventors: 吴恒飞
Original assignee: Bozhou University
Current assignee: Bozhou University
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-09
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a mathematics teaching aid, the on-line screen storage device comprises a base, the bottom fixedly connected with magnet of base, integrated into one piece has the lug on the top exterior wall of base, it has the rotation seat to rotate the joint on the exterior wall of lug, the mounting groove has been seted up at the upper surface middle part of rotation seat, the rotation groove has all been seted up to the both sides that the top of rotation seat corresponds the mounting groove, fixedly connected with spacing ring on the inside lateral wall of mounting groove, set up two openings that the symmetry set up on the spacing ring, the apron is installed on the top of rotation seat, the inside that corresponds the rotation groove on the rotation seat rotates and is connected with the protractor, fixedly connected with fixed loop bar on the exterior wall of rotation seat, the slip joint has the slip loop bar on the fixed loop bar, the upper surface; the utility model discloses portable, it is very convenient, the centre of a circle is convenient for fix, is difficult to take place to remove, does not influence the accuracy and the effect of drawing, and the centre gripping sleeve of chalk is difficult to block up simultaneously, does not influence the use.

Description

Mathematics teaching aid

Technical Field

The utility model relates to a mathematics teaching aid technical field specifically is a mathematics teaching aid.

Background

Teaching aid refers to the model that is used for explaining something, the material object, the sample, the apparatus, the chart, the slide etc., the mathematics teaching aid makes the instrument of supplementary mr teaching, teaching aid commonly used has the ruler, the angulometer, compasses etc., in the teaching work of mathematics teacher, for the convenience of student's understanding and the keeping away from and the notion of memory drawing, often use the ruler, instruments such as angulometer and compasses are drawn and are measured on the blackboard, traditional ruler, angulometer and compasses are independent, need carry various teaching aid entering classroom when going up the class, it is very inconvenient, be not convenient for fixed at the in-process centre of a circle that uses compasses to draw, take place the removal easily, influence the accuracy and the effect of drawing, the centre gripping sleeve of chalk blocks up easily simultaneously, influence the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mathematics teaching aid to traditional ruler, angulometer board and the compasses that provide in solving above-mentioned background are independent, need carry various teaching aids and get into the classroom in class hour, and it is very inconvenient, be not convenient for fix at the in-process centre of a circle that uses the compasses to draw, take place to remove easily, influence the accuracy and the effect of drawing, the centre gripping sleeve of chalk blocks up easily simultaneously, influences the problem of using.

In order to achieve the above object, the utility model provides a following technical scheme: a mathematics teaching aid comprises a base, wherein a magnet is fixedly connected to the bottom end of the base, a convex block is integrally formed on the outer surface wall at the top end of the base, a rotating seat is connected to the outer surface wall of the convex block in a rotating and clamping manner, a mounting groove is formed in the middle of the upper surface of the rotating seat, rotating grooves are formed in the two sides of the top end of the rotating seat, corresponding to the mounting groove, a limiting ring is fixedly connected to the inner side wall of the mounting groove, two openings which are symmetrically arranged are formed in the limiting ring, a cover plate is installed at the top end of the rotating seat, a protractor is rotatably connected to the rotating seat, corresponding to the rotating grooves, a fixed loop bar is fixedly connected to the outer surface wall of the rotating seat, a sliding loop bar is connected to the fixed loop bar in a sliding and clamping manner, an upper sliding plate is slidably connected to the upper surface of, the improved structure of the sliding sleeve is characterized in that a connecting plate is fixedly connected to one side of the upper sliding plate and one side of the lower sliding plate, a knob screw is arranged on the connecting plate, the knob screw transversely penetrates through the connecting plate and abuts against the sliding sleeve rod, a clamping sleeve is fixedly connected to the inner portion, corresponding to the sliding sleeve rod, of the lower surface of the upper sliding plate, the clamping sleeve longitudinally penetrates through the lower sliding plate, and a groove is formed in the middle of the lower surface of the clamping sleeve.

Preferably, the lower surface of the cover plate is fixedly connected with a clamping rod corresponding to the position of the opening, and the cover plate is connected with the rotating seat through the clamping rod in a clamping mode.

Preferably, the top end of the sliding loop bar is fixedly connected with a limiting plate.

Preferably, the groove is inserted with a connecting rod, the connecting rod longitudinally penetrates through the upper sliding plate and the clamping sleeve, the bottom end of the connecting rod is fixedly connected with a sliding block corresponding to the inside of the groove, and the top end of the connecting rod is fixedly connected with a pressing plate.

Preferably, the outer surface wall of the connecting rod corresponding to the upper surface of the upper sliding plate is sleeved with a spring.

Preferably, the fixed loop bar and the sliding loop bar are both marked with scale marks.

Preferably, one side of the upper surface of the upper sliding plate, which corresponds to the connecting plate, is provided with an observation port.

Preferably, the cover plate, the rotating seat, the magnet and the base are all provided with through holes in the middle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, internally mounted through the recess on the centre gripping cover has the chalk, and pass through magnet with the teaching aid and fix on the blackboard, make chalk and blackboard contact, rotate the seat round around the base rotation, can conveniently draw circularly, be convenient for the fixed in the centre of a circle, the condition of easy removal has been avoided, do not influence the accuracy and the effect of drawing, rethread slip loop bar slides on fixed loop bar, utilize the scale mark can be used for easily drawing the circle of different diameters, rotate the fixed loop bar of drive rotation on the base through rotating the seat and rotate, use through the protractor cooperation, manual use chalk is drawn along the bottom of fixed loop bar, can realize drawing the straight line of different angles, cooperate the slip loop bar to realize drawing the straight line of different length simultaneously, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, and simple in operation.

2. The utility model discloses, through the manual removal knob screw, it removes to drive top slide and lower slide, can be convenient for adjust to the size position that needs were drawn, utilize the knob screw can be convenient for the connecting plate with fixed loop bar and the fixed of slip loop bar, avoid sliding appearing at the in-process that uses, press the board through manual downwards pressing, drive connecting rod downstream, drive the spring simultaneously and compress, make the connecting rod drive the slider downstream in the recess and make the inside chalk of recess extrude, make the slider resume to the top of recess under the self elastic action of spring, avoid the chalk to block up and influence the use.

Drawings

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

FIG. 2 is a schematic view of the connection structure of the fixed loop bar and the sliding loop bar of the present invention;

FIG. 3 is a sectional view of the rotary seat structure of the present invention;

FIG. 4 is a schematic view of the connection structure of the upper slide plate and the lower slide plate of the present invention;

fig. 5 is a schematic view of the top view structure of the rotating seat of the present invention.

In the figure: 1. a base; 2. a magnet; 3. a bump; 4. a rotating seat; 5. a rotating groove; 6. fixing the loop bar; 7. sliding the loop bar; 8. an upper slide plate; 9. a lower slide plate; 10. a connecting plate; 11. a knob screw; 12. a clamping sleeve; 13. a groove; 14. a connecting rod; 15. a slider; 16. pressing a plate; 17. a spring; 18. a limiting plate; 19. a protractor; 20. mounting grooves; 21. a limiting ring; 22. an opening; 23. a cover plate; 24. and (5) clamping the rod.

Detailed Description

In order to solve traditional ruler, angulometer board and compasses and be independent, need carry various teaching aids and get into the classroom when having a lesson, very inconvenient problem is convenient for fix at the in-process centre of a circle that uses the compasses to draw, is difficult to take place to remove, does not influence the accuracy and the effect of drawing, and the centre gripping sleeve of chalk is difficult to block up simultaneously, does not influence the use, the embodiment of the utility model provides a mathematics teaching aid. 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.

Example 1

Referring to fig. 1-5, the present embodiment provides a mathematical teaching aid, which includes a base 1, a magnet 2 fixedly connected to a bottom end of the base 1, a protrusion 3 integrally formed on an outer surface wall of a top end of the base 1, a rotation base 4 rotatably fastened to an outer surface wall of the protrusion 3, a mounting groove 20 formed in a middle portion of an upper surface of the rotation base 4, rotation grooves 5 formed in a top end of the rotation base 4 corresponding to two sides of the mounting groove 20, a limiting ring 21 fixedly connected to an inner side wall of the mounting groove 20, two openings 22 symmetrically formed in the limiting ring 21, a cover plate 23 mounted to a top end of the rotation base 4, a protractor 19 rotatably connected to an inner portion of the rotation base 4 corresponding to the rotation groove 5, a fixed loop bar 6 fixedly connected to an outer surface wall of the rotation base 4, a sliding loop bar 7 slidably fastened to the fixed loop bar 6, an upper sliding plate 8 slidably connected to an upper surface of, the lower surface sliding connection of slip loop bar 7 has lower slide 9, one side fixedly connected with connecting plate 10 of upper slide 8 and lower slide 9, be provided with knob screw 11 on the connecting plate 10, knob screw 11 transversely runs through in connecting plate 10 and withstands with slip loop bar 7, the lower surface of upper slide 8 corresponds the inside fixedly connected with centre gripping cover 12 of slip loop bar 7, centre gripping cover 12 vertically runs through in lower slide 9, the lower surface middle part of centre gripping cover 12 is seted up flutedly 13, it has connecting rod 14 to peg graft on the flutedly 13, connecting rod 14 vertically runs through in upper slide 8 and centre gripping cover 12, the inside fixedly connected with slider 15 of flutedly 13 is corresponded to the bottom of connecting rod 14, the top fixedly connected with of connecting rod 14 presses board 16, the upper surface cover that corresponds upper slide 8 on the outer surface wall of connecting rod 14 has connect spring 17.

Wherein, all portrayed the scale mark on fixed loop bar 6 and the slip loop bar 7, through the setting of scale mark, can be according to the audio-visual teaching use of being convenient for of scale mark.

In the embodiment, when the blackboard eraser is used, firstly, chalk is arranged in the groove 13 on the clamping sleeve 12, the upper sliding plate 8 and the lower sliding plate 9 are manually slid, then the chalk is moved to the position of the shape and the size of a circle to be drawn by using scale marks, the connecting plate 10 is fixed with the sliding loop bar 7 by manually rotating the knob screw 11, the teaching aid is fixed on the blackboard through the magnet 2, the chalk is contacted with the blackboard, the fixed loop bar 6 rotates around the base 1 for one circle under the action of the rotating seat 4 to conveniently draw the circle, then the sliding loop bar 7 slides on the fixed loop bar 6 to easily draw circles with different diameters, the cover plate 23 is manually rotated to rotate to the position of the opening 22 and take out the position of the opening 22, the protractor 19 is manually taken out from the rotating groove 5, the upper sliding plate 8 and the lower sliding plate 9 are moved to the fixed loop bar 6, then, the connecting plate 10 is fixed with the fixed loop bar 6 by manually rotating the knob screw 11, circles with different sizes can be drawn, the fixed loop bar 6 and the sliding loop bar 7 are driven to rotate on the base 1 by rotating the rotating seat 4, the chalk on the clamping sleeve 12 is manually drawn along the bottom of the fixed loop bar 6 by using the effect of the protractor 19, straight lines with different angles can be drawn, the straight lines with different lengths can be drawn by matching with the sliding loop bar 7, when the chalk needs to be replaced, the pressing plate 16 is manually pressed downwards to drive the connecting rod 14 to move downwards and drive the spring 17 to compress, the sliding block 15 in the groove 13 is driven by the connecting rod 14 to move downwards to extrude the chalk in the groove 13, the sliding block 15 is restored to the top of the groove 13 under the self elastic action of the spring 17, the influence of chalk blocking on use is avoided, and the adaptability is good, the practicability is strong, The operation is simple.

Example 2

Referring to fig. 1-5, a further improvement is made on the basis of embodiment 1: a clamping rod 24 is fixedly connected to the lower surface of the cover plate 23 corresponding to the position of the opening 22, the cover plate 23 is connected with the rotating seat 4 in a clamping manner through the clamping rod 24, and through the arrangement of the clamping rod 24, the clamping connection between the cover plate 23 and the rotating seat 4 and the installation and the disassembly of the protractor 19 are convenient, the top end of the sliding loop bar 7 is fixedly connected with the limiting plate 18, and through the arrangement of the limiting plate 18, the upper sliding plate 8 and the lower sliding plate 9 can be effectively prevented from sliding out of the sliding loop bar 7 to play a limiting role, the upper surface of the upper sliding plate 8 is provided with an observation port corresponding to one side of the connecting plate 10, through the arrangement of the observation port, the scale marks can be observed conveniently and visually, the accuracy is improved, through holes are formed in the middle parts of the cover plate 23, the rotating seat 4, the magnet 2 and the base 1, through the arrangement of the through holes, the position of the circle center can be observed conveniently, the operation is convenient, and the accuracy and the precision of drawing are improved.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

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 mathematics teaching aid, includes base (1), its characterized in that: the bottom fixedly connected with magnet (2) of base (1), integrated into one piece has lug (3) on the top exterior wall of base (1), it has rotating seat (4) to rotate the joint on the exterior wall of lug (3), mounting groove (20) have been seted up at the upper surface middle part of rotating seat (4), rotating groove (5) have all been seted up to the both sides that correspond mounting groove (20) in the top of rotating seat (4), fixedly connected with spacing collar (21) on the inside lateral wall of mounting groove (20), set up two openings (22) that the symmetry set up on spacing collar (21), apron (23) are installed at the top of rotating seat (4), the inside rotation that corresponds rotating groove (5) on rotating seat (4) is connected with protractor (19), fixedly connected with fixed loop bar (6) on the exterior wall of rotating seat (4), the slip joint has slip loop bar (7) on fixed loop bar (6), the utility model discloses a sliding sleeve, including slip loop bar (7), upper surface sliding connection of slip loop bar (7) has top slide (8), the lower surface sliding connection of slip loop bar (7) has bottom slide (9), one side fixedly connected with connecting plate (10) of top slide (8) and bottom slide (9), be provided with knob screw (11) on connecting plate (10), knob screw (11) transversely run through in connecting plate (10) and withstand with slip loop bar (7), the lower surface of top slide (8) corresponds the inside fixedly connected with centre gripping cover (12) of slip loop bar (7), centre gripping cover (12) vertically run through in bottom slide (9), the lower surface middle part of centre gripping cover (12) is seted up fluted (13).

2. A mathematical teaching aid as claimed in claim 1, wherein: the lower surface of the cover plate (23) is fixedly connected with a clamping rod (24) corresponding to the position of the opening (22), and the cover plate (23) is connected with the rotating seat (4) in a clamping mode through the clamping rod (24).

3. A mathematical teaching aid as claimed in claim 1, wherein: the top end of the sliding loop bar (7) is fixedly connected with a limiting plate (18).

4. A mathematical teaching aid as claimed in claim 1, wherein: the connecting rod (14) is inserted into the groove (13), the connecting rod (14) longitudinally penetrates through the upper sliding plate (8) and the clamping sleeve (12), a sliding block (15) is fixedly connected to the bottom end of the connecting rod (14) corresponding to the inner portion of the groove (13), and a pressing plate (16) is fixedly connected to the top end of the connecting rod (14).

5. A mathematical teaching aid as claimed in claim 4, wherein: the outer surface wall of the connecting rod (14) is sleeved with a spring (17) corresponding to the upper surface of the upper sliding plate (8).

6. A mathematical teaching aid as claimed in claim 1, wherein: scale marks are respectively carved on the fixed loop bar (6) and the sliding loop bar (7).

7. A mathematical teaching aid as claimed in claim 1, wherein: an observation port is formed in one side, corresponding to the connecting plate (10), of the upper surface of the upper sliding plate (8).

8. A mathematical teaching aid as claimed in claim 1, wherein: the cover plate (23), the rotating seat (4), the magnet (2) and the base (1) are all provided with through holes in the middle.