CN211994895U

CN211994895U - Teaching aid for mathematics

Info

Publication number: CN211994895U
Application number: CN202020477622.4U
Authority: CN
Inventors: 苏晓海
Original assignee: Shaanxi University of Technology
Current assignee: Shaanxi University of Technology
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-11-24
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses a teaching aid is used to mathematics belongs to teaching aid technical field, and it includes first religion chi, the left surface fixedly connected with casing of first religion chi, the spout has been seted up to shells inner wall's lower surface, sliding connection has the slider in the spout, the first fixture block of last fixed surface of slider, the left surface fixed connection resilient means and the connecting rod of first fixture block, resilient means's left end and shells inner wall's left surface fixed connection. This teaching aid is used to mathematics, through setting up first fixture block, the second fixture block, a housing, the telescopic link, the slider, place piece and connecting rod, after teaching staff's teaching finishes, just can stir the handle left, make left first magnetic path and second magnetic path adsorb each other, rotate the second teaching chi afterwards, the second teaching chi will be fixed this moment, make that teaching staff can be convenient carry this teaching aid, made things convenient for teaching staff's operation.

Description

Teaching aid for mathematics

Technical Field

The utility model belongs to the technical field of the teaching aid, specifically be a teaching aid is used to mathematics.

Background

Mathematics is a subject of researching the concepts of quantity, structure, change, space, information and the like, belongs to one of formal science from a certain angle, plays an irreplaceable role in human historical development and social life, and is also an essential basic tool for learning and researching modern science and technology. Basic mathematics's knowledge and application are an indispensable partly in individual and the group life, often need use auxiliary teaching aid at mr's teaching in-process, but current teaching aid function is comparatively single, changes the easy more time of wasting of teaching aid at the in-process of giving lessons, is unfavorable for the teacher to give lessons, and after finishing giving lessons, the teaching aid is difficult to carry, and is comparatively troublesome.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the above-mentioned defect of prior art, the utility model provides a teaching aid is used to mathematics has solved current teaching aid function comparatively single, changes the easy more time of wasting of teaching aid at the in-process of giving lessons, is unfavorable for the teacher to give lessons, and after finishing giving lessons, the teaching aid is difficult for carrying comparatively troublesome problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a teaching aid is used to mathematics, includes first religion chi, the left surface fixedly connected with casing of first religion chi, the spout has been seted up to shells inner wall's lower surface, sliding connection has the slider in the spout, the first fixture block of last fixed surface of slider, the left surface fixed connection of first fixture block has resilient means and connecting rod, resilient means's left end and shells inner wall's left surface fixed connection, the front swing joint of round pin axle and second religion chi is passed through at the back of first religion chi.

The lower fixed surface of first religion chi is connected with the connecting block, the spacing groove is seted up in the front of connecting block, sliding connection has the handle in the spacing groove, the back fixedly connected with movable block of handle, the first magnetic path of the equal fixedly connected with of the left and right sides face of movable block, the left surface of connecting block and the equal fixedly connected with second magnetic path of the lower surface of second religion chi.

The right flank fixedly connected with of second teaching chi places the piece, the through-hole has been seted up in the front of placing the piece, place the first splint of positive fixedly connected with and the nut of piece, nut internal thread connection has the threaded rod, the left end fixedly connected with rotary device of threaded rod, the rotary device joint is at the right flank of second splint, the last fixed surface who places the piece is connected with the second fixture block.

As a further aspect of the present invention: the opposite face of first splint and second splint all is provided with anti-skidding line, the right-hand member fixedly connected with of threaded rod changes the handle.

As a further aspect of the present invention: the upper surface of the shell is provided with a clamping hole, and the left end of the connecting rod is fixedly connected with the right side surface of the pull ring through the shell.

As a further aspect of the present invention: the front sides of the first teaching ruler and the second teaching ruler are provided with scales, and the first magnetic block and the second magnetic block are mutually attracted.

As a further aspect of the present invention: the elastic device comprises a telescopic rod, a spring is sleeved on the outer surface of the telescopic rod, and the two ends of the telescopic rod and the spring are fixedly connected with the left side face of the first clamping block and the left side face of the inner wall of the shell respectively.

As a further aspect of the present invention: the rotating device comprises a bearing, the bearing is clamped on the right side face of the second clamping plate, a rotating shaft is sleeved in the bearing, and the right end of the rotating shaft is fixedly connected with the left end of the threaded rod.

(III) advantageous effects

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

1. this teaching aid is used to mathematics, through setting up first fixture block, the second fixture block, a housing, the telescopic link, a spring, a sliding block, place piece and connecting rod, after teaching staff gives lessons and finishes, just can stir the handle left, make left first magnetic path and second magnetic path adsorb each other, rotate the second teaching chi afterwards, when the second fixture block gets into casing and first fixture block contact, the first fixture block will be extruded to the second fixture block, make first fixture block remove left, fix the second fixture block under the effect of spring elasticity afterwards, the second teaching chi will be fixed this moment, make carrying this teaching aid that teaching staff can be convenient, the operation of teaching staff has made things convenient for.

2. This teaching aid for mathematics, through setting up the round pin axle, the second religion chi, first splint and second splint, when the teaching staff personnel need draw circular pattern, only need insert the chalk in the through-hole, thereby the reversal rotation threaded rod is lived the chalk centre gripping afterwards, the handle just can be stirred to the teaching staff personnel this moment, make left first magnetic path and second magnetic path contact, the teaching staff personnel just can rotate the second teaching chi afterwards and draw circularly, when having improved this teaching aid suitability, the time of teaching staff personnel drawing circular change teaching aid has been practiced thrift, the rate of utilization of teaching time has been improved greatly.

3. This teaching aid is used to mathematics through setting up first splint and second splint for this teaching aid can be convenient with the chalk centre gripping, make the professor personnel when rotating second splint and drawing, the chalk is difficult for dropping, because of being provided with spout and slider, when making the first fixture block of second fixture block extrusion, first fixture block can be controlled and remove, makes first fixture block more smooth and easy when removing, and is difficult for the card to die.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is an enlarged schematic structural view at a position a of the present invention;

FIG. 3 is an enlarged schematic view of the structure of the utility model at B;

fig. 4 is an enlarged schematic structural view at the position C of the present invention;

in the figure: 1 first religion chi, 2 casings, 3 spout, 4 sliders, 5 first fixture blocks, 6 resilient means, 61 telescopic link, 62 springs, 7 connecting rods, 8 round pin axles, 9 second religion chi, 10 connecting blocks, 11 spacing grooves, 12 handles, 13 movable blocks, 14 first magnetic blocks, 15 second magnetic blocks, 16 place the piece, 17 through-holes, 18 first splint, 19 second splint, 20 rotary device, 201 pivot, 202 bearing, 21 nut, 22 threaded rod, 23 second fixture blocks.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-4, the utility model provides a technical solution: a teaching aid for mathematics comprises a first teaching ruler 1, a shell 2 is fixedly connected to the left side surface of the first teaching ruler 1, a sliding groove 3 is formed in the lower surface of the inner wall of the shell 2, a sliding block 4 is connected in the sliding groove 3 in a sliding manner, a first clamping block 5 is fixedly connected to the upper surface of the sliding block 4, an elastic device 6 and a connecting rod 7 are fixedly connected to the left side surface of the first clamping block 5, the elastic device 6 comprises a telescopic rod 61, a spring 62 is sleeved on the outer surface of the telescopic rod 61, two ends of the telescopic rod 61 and the spring 62 are respectively fixedly connected with the left side surface of the first clamping block 5 and the left side surface of the inner wall of the shell 2, due to the arrangement of the spring 62 and the telescopic rod 61, when the first clamping block 5 is extruded by the second clamping block 23 to enable the first clamping block 5 to move leftwards, the spring 62 can contract, then the first clamping block 5 can fix the second clamping, the left end of elastic device 6 and the left surface fixed connection of 2 inner walls of casing, the opposite face of first splint 18 and second splint 19 all is provided with anti-skidding line, the right-hand member fixedly connected with of threaded rod 22 changes the handle, because of being provided with anti-skidding line, make the professor staff when using first splint 18 and second splint 19 to grasp the chalk, the condition that the chalk is difficult for appearing dropping, because of being provided with changes the handle, make the rotatory threaded rod 22 that the professor staff can be convenient, the front swing joint of round pin axle 8 and second professor ruler 9 is passed through at the back of first professor ruler 1.

The lower surface of the first teaching ruler 1 is fixedly connected with a connecting block 10, the fronts of the first teaching ruler 1 and the second teaching ruler 9 are respectively provided with scales, the first magnetic block 14 and the second magnetic block 15 are mutually attracted, because the first magnetic block 14 and the second magnetic block 15 are mutually attracted, when a teacher stirs the movable block 13 to enable the first magnetic block 14 and the second magnetic block 15 to contact and mutually attract, the movable block 13 is fixed, the movable block 13 is not easy to shake or slide, the front of the connecting block 10 is provided with a limiting groove 11, a handle 12 is slidably connected in the limiting groove 11, the back of the handle 12 is fixedly connected with the movable block 13, the upper surface of the shell 2 is provided with a clamping hole, the left end of the connecting rod 7 is fixedly connected with the right side surface of the pull ring through the shell 2, because of the clamping hole, the second clamping block 23 can enter the shell 2 through the clamping hole, because of the clamping hole, the teacher can conveniently pull the connecting rod 7, therefore, the position of the first clamping block 5 is adjusted, the left side surface and the right side surface of the movable block 13 are both fixedly connected with the first magnetic block 14, and the left side surface of the connecting block 10 and the lower surface of the second teaching ruler 9 are both fixedly connected with the second magnetic block 15.

The right side surface of the second teaching ruler 9 is fixedly connected with a placing block 16, the front surface of the placing block 16 is provided with a through hole 17, the front surface of the placing block 16 is fixedly connected with a first clamping plate 18 and a screw cap 21, the screw cap 21 is connected with a threaded rod 22 in a threaded manner, the rotating device 20 comprises a bearing 202, the bearing 202 is clamped on the right side surface of the second clamping plate 19, a rotating shaft 201 is sleeved in the bearing 202, the right end of the rotating shaft 201 is fixedly connected with the left end of the threaded rod 22, and due to the arrangement of the bearing 202 and, when the instructor rotates the threaded rod 22, the threaded rod 22 slowly rotates to the left along the threads in the nut 21, so that the second clamping plate 19 is not easy to rotate, and threaded rod 22 can be rotatory more smoothly, and difficult card is dead, and the left end fixedly connected with rotary device 20 of threaded rod 22, and rotary device 20 joint is at the right side of second splint 19, places the last fixed surface of 16 and is connected with second fixture block 23.

The utility model discloses a theory of operation does:

s1, when the ruler is used, a teacher only needs to draw a long straight line by using the scales below the first teaching ruler 1, when the long straight line needs to be drawn, the teacher only needs to pull the pull ring to enable the first fixture block 5 not to fix the second fixture block 23, the teacher can turn over the second teaching ruler 9 through the pin shaft 8 and then shift the handle 12 to enable the movable block 13 to move rightwards, and when the first magnetic block 14 on the right side is in contact with the second magnetic block 15, the second teaching ruler 9 can be clamped above the movable block 13;

s2, when the teacher needs to draw a circular pattern, the teacher only needs to insert the chalk into the through hole 17, then the threaded rod 22 is rotated reversely, the threaded rod 22 moves leftwards slowly, the second clamping plate 19 moves leftwards slowly, the chalk is clamped, then the teacher can shift the handle 12, the first magnetic block 14 on the left side is in contact with the second magnetic block 15, and then the teacher can rotate the second teaching ruler 9 to draw a circle;

s3, after the teaching is finished, the teacher can shift the handle 12 leftwards, then rotate the second teaching ruler 9, when the second fixture block 23 enters the shell 2 to contact with the first fixture block 5, the second fixture block 23 can extrude the first fixture block 5, so that the first fixture block 5 moves leftwards, and then the second fixture block 23 is fixed under the action of the elastic force of the spring 62.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a teaching aid is used to mathematics, includes first teaching chi (1), its characterized in that: the left side surface of the first teaching ruler (1) is fixedly connected with a shell (2), the lower surface of the inner wall of the shell (2) is provided with a sliding groove (3), the sliding groove (3) is internally connected with a sliding block (4), the upper surface of the sliding block (4) is fixedly connected with a first clamping block (5), the left side surface of the first clamping block (5) is fixedly connected with an elastic device (6) and a connecting rod (7), the left end of the elastic device (6) is fixedly connected with the left side surface of the inner wall of the shell (2), and the back surface of the first teaching ruler (1) is movably connected with the front surface of a second teaching ruler (9) through a pin shaft (8);

the lower surface of the first teaching ruler (1) is fixedly connected with a connecting block (10), a limiting groove (11) is formed in the front surface of the connecting block (10), a handle (12) is connected in the limiting groove (11) in a sliding mode, a movable block (13) is fixedly connected to the back surface of the handle (12), first magnetic blocks (14) are fixedly connected to the left side surface and the right side surface of the movable block (13), and second magnetic blocks (15) are fixedly connected to the left side surface of the connecting block (10) and the lower surface of the second teaching ruler (9);

right flank fixedly connected with of second teaching chi (9) places piece (16), through-hole (17) have been seted up in the front of placing piece (16), place the first splint of positive fixedly connected with (18) and nut (21) of piece (16), nut (21) internal thread connection has threaded rod (22), the left end fixedly connected with rotary device (20) of threaded rod (22), rotary device (20) joint is at the right flank of second splint (19), the last fixed surface who places piece (16) is connected with second fixture block (23).

2. A teaching aid for mathematics as claimed in claim 1, wherein: the opposite face of first splint (18) and second splint (19) all is provided with anti-skidding line, the right-hand member fixedly connected with of threaded rod (22) changes the handle.

3. A teaching aid for mathematics as claimed in claim 1, wherein: the upper surface of the shell (2) is provided with a clamping hole, and the left end of the connecting rod (7) is fixedly connected with the right side surface of the pull ring through the shell (2).

4. A teaching aid for mathematics as claimed in claim 1, wherein: the front surfaces of the first teaching ruler (1) and the second teaching ruler (9) are provided with scales, and the first magnetic block (14) and the second magnetic block (15) are mutually attracted.

5. A teaching aid for mathematics as claimed in claim 1, wherein: the elastic device (6) comprises an expansion rod (61), a spring (62) is sleeved on the outer surface of the expansion rod (61), and two ends of the expansion rod (61) and the spring (62) are fixedly connected with the left side surface of the first fixture block (5) and the left side surface of the inner wall of the shell (2) respectively.

6. A teaching aid for mathematics as claimed in claim 1, wherein: the rotating device (20) comprises a bearing (202), the bearing (202) is connected to the right side face of the second clamping plate (19) in a clamped mode, a rotating shaft (201) is sleeved in the bearing (202), and the right end of the rotating shaft (201) is fixedly connected with the left end of the threaded rod (22).