CN213441783U

CN213441783U - Higher mathematics function demonstration teaching aid

Info

Publication number: CN213441783U
Application number: CN202022388767.XU
Authority: CN
Inventors: 陈杨林; 夏正喜
Original assignee: Jiujiang Vocational and Technical College
Current assignee: Jiujiang Vocational and Technical College
Priority date: 2020-10-24
Filing date: 2020-10-24
Publication date: 2021-06-15
Anticipated expiration: 2030-10-24

Abstract

The utility model discloses a higher mathematics function demonstration teaching aid, concretely relates to teaching aid technical field, including bracket and the board of connecting at the bracket top through bolt fixed connection, the front surface of board is close to top position fixedly connected with slide bar, the front surface of board is close to fixedly connected with slide between bottom position and the bracket lateral wall, the inside sliding connection of slide has the scale, the surface sliding connection of scale has the slider, one side fixedly connected with mark device of slider, the bottom fixedly connected with support frame of bracket. The utility model discloses have the function that can conveniently carry out accurate function figure drawing on supplementary grid plate, can drive marking device freely remove and mark on the board through the combination of scale and slider and the setting of scale mark to can easily remove and disassemble the storage to the device through support frame and rotating-structure's setting.

Description

Higher mathematics function demonstration teaching aid

Technical Field

The utility model relates to a teaching aid technical field, more specifically says, the utility model relates to an advanced math function demonstration teaching aid.

Background

Higher mathematics function demonstration teaching aid is a function presentation device to higher mathematics teaching uses, because when carrying out higher mathematics teaching at school, the teacher need demonstrate the function coordinate graph to the student, often need manually to draw a plurality of function coordinates on the blackboard, because current blackboard simple structure, it is comparatively complicated trouble to draw and erase, the time of teaching has also been wasted to the work load that has increased the teacher, so a teaching aid that is used for higher mathematics function demonstration specially comes to supply the teacher to give lessons and uses, thereby improve the quality of teaching.

However, in practical use, a general demonstration teaching aid has some limitations and needs to demonstrate according to a set coordinate system and an inherent mold, and the precision is low when drawing is performed manually, so that the drawn function graph is not visual enough.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides an advanced mathematical function demonstration teaching aid to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a higher mathematics function demonstration teaching aid, includes the bracket and passes through the board of bolt fixed connection at the bracket top, the front surface of board is close to top position fixedly connected with slide bar, the front surface of board is close to fixedly connected with slide between bottom position and the bracket lateral wall, the inside sliding connection of slide has the scale, the top sliding connection of scale is on the slide bar surface, the sliding surface of scale is connected with the slider, one side fixedly connected with mark device of slider, the opposite side threaded connection of slider has fastening bolt, the bottom fixedly connected with support frame of bracket, the bottom of support frame is provided with rotating-structure.

Further, the marking device includes the protective housing of fixed connection in slider one side, the inside fixedly connected with baffle of protective housing, logical groove has been seted up at the middle part of baffle, sliding connection has between the diapire of baffle and protective housing presses the piece, press fixedly connected with spring between one side of piece and the protective housing lateral wall, the lateral wall of protective housing is passed to the opposite side of pressing the piece, the top fixedly connected with connecting plate according to the piece, the top fixedly connected with collar of connecting plate, the painting brush is worn to be equipped with in the inside of collar.

Furthermore, connecting plate sliding connection is inside leading to the groove, the screw has been seted up to one side of collar, the painting brush passes through the fastening bolt of threaded connection in the screw and fixes in the collar, the lateral wall of protective housing is all passed at the both ends of painting brush.

Further, the support frame includes the fixed plate of fixed connection in the bracket bottom, the both sides of fixed plate all are connected with the supporting leg through the pivot rotation, the bottom fixedly connected with locating lever of fixed plate, the bottom fixedly connected with stopper of locating lever, the surperficial sliding connection of locating lever has fixing device.

Further, fixing device includes the connecting block of sliding connection on the locating lever surface, the top fixedly connected with locating piece of connecting block, the locating piece passes through fastening bolt to be fixed on the surface of locating lever, the both sides of connecting block all are rotated through the pivot and are connected with branch, the one end of branch is rotated through the pivot and is connected with the connecting seat, connecting seat fixed connection is on a side surface of supporting leg.

Furthermore, the rotating structure comprises a connecting rod fixedly connected to the bottom of the positioning rod, and two ends of the connecting rod are fixedly connected with spherical universal wheels through bolts.

Furthermore, an auxiliary grid plate is embedded in the middle of the writing board, and scale marks are arranged on the surfaces of the staff gauge and the writing board and below the auxiliary grid plate.

The utility model discloses a technological effect and advantage:

1. by arranging the marking device, compared with the prior art, the auxiliary grid plate can be flexibly marked and drawn by the ruler and the sliding block, and the operation is simple and easy to use;

2. through setting up support frame and rotating-structure, compare with prior art, also conveniently disassemble when conveniently removing the teaching aid that expandes and accomodate, can adjust the height of device to a certain extent through the setting.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic side view of the marking device of the present invention.

Fig. 4 is a schematic view of the front cross-section structure of the marking device of the present invention.

Fig. 5 is a schematic structural view of the fixing device of the present invention.

The reference signs are: 1. a bracket; 2. a writing board; 3. a slide bar; 4. a slideway; 5. a scale; 6. a slider; 7. a protective shell; 8. a baffle plate; 9. a pressing block; 10. a spring; 11. a connecting plate; 12. a mounting ring; 13. painting brushes; 14. a fixing plate; 15. supporting legs; 16. positioning a rod; 17. a limiting block; 18. connecting blocks; 19. positioning blocks; 20. a strut; 21. a connecting seat; 22. a connecting rod; 23. a ball-type universal wheel; 24. an auxiliary grid plate; 25. scale lines are marked.

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.

1-5 show a higher mathematics function demonstration teaching aid, including bracket 1 and board 2 through bolt fixed connection at bracket 1 top, the front surface of board 2 is close to top position fixedly connected with slide bar 3, the front surface of board 2 is close to fixedly connected with slide 4 between bottom position and the bracket 1 lateral wall, the inside sliding connection of slide 4 has scale 5, the top sliding connection of scale 5 is on slide bar 3 surface, scale 5's surface sliding connection has slider 6, one side fixed connection of slider 6 has the mark device, the opposite side threaded connection of slider 6 has fastening bolt, the bottom fixedly connected with support frame of bracket 1, the bottom of support frame is provided with rotating-structure.

In a preferred embodiment, the marking device comprises a protective shell 7 fixedly connected to one side of a slider 6, a baffle 8 is fixedly connected to the inside of the protective shell 7, a through groove is formed in the middle of the baffle 8, a pressing block 9 is slidably connected between the baffle 8 and the bottom wall of the protective shell 7, a spring 10 is fixedly connected between one side of the pressing block 9 and the side wall of the protective shell 7, the other side of the pressing block 9 penetrates through the side wall of the protective shell 7, a connecting plate 11 is fixedly connected to the top of the pressing block 9, a mounting ring 12 is fixedly connected to the top of the connecting plate 11, a painting brush 13 is arranged inside the mounting ring 12 in a penetrating manner, so that the pressing block 9 can be pressed to slide towards the inside of the protective shell 7 to drive the mounting ring 12 to move towards the writing board 2 through the connecting plate 11 and drive the painting brush 13 fixed inside the mounting ring 12 to move towards the writing board 2 to enable the end of the, after the pressing block 9 is released from being pressed, the pressing block 9 is reset under the elastic force of the spring 10, the connecting plate 11 drives the mounting ring 12 and the painting brush 13 to reset, the painting brush 13 is separated from the surface of the auxiliary grid plate 24, and the effect of marking on the auxiliary grid plate 24 by pressing the pressing block 9 is achieved.

In a preferred embodiment, connecting plate 11 sliding connection is inside leading to the groove, and the screw has been seted up to one side of collar 12, and painting brush 13 passes through the fastening bolt of threaded connection in the screw and fixes in collar 12, and the lateral wall of protective housing 7 is all passed at the both ends of painting brush 13 to can be through wearing to establish painting brush 13 in protective housing 7 through collar 12, and fix the painting brush 13 of wearing to establish through fastening bolt, conveniently install the change to painting brush 13.

In a preferred embodiment, the support frame includes fixed plate 14 of fixed connection in bracket 1 bottom, the both sides of fixed plate 14 all are connected with supporting leg 15 through the pivot rotation, the bottom fixedly connected with locating lever 16 of fixed plate 14, the bottom fixedly connected with stopper 17 of locating lever 16, the surperficial sliding connection of locating lever 16 has fixing device, thereby it can be close to the height of keeping away from the adjustment support frame each other to be convenient for make the bottom of supporting leg 15 through fixing device at the fixed on locating lever 16 surface, and thereby can make supporting leg 15 be close to each other through removing fixing device's fixed and draw in convenient storage to the support frame.

In a preferred embodiment, the fixing device comprises a connecting block 18 slidably connected to the surface of the positioning rod 16, a positioning block 19 is fixedly connected to the top of the connecting block 18, the positioning block 19 is fixed to the surface of the positioning rod 16 through a fastening bolt, two sides of the connecting block 18 are both rotatably connected with a supporting rod 20 through a rotating shaft, one end of the supporting rod 20 is rotatably connected with a connecting seat 21 through a rotating shaft, the connecting seat 21 is fixedly connected to one side surface of the supporting leg 15, so that the connecting block 18 can push the connecting seat 21 and the supporting leg 15 to be away from or close to each other through the supporting rods 20 on two sides by sliding on the surface of the positioning rod 16, the position is fixed through the positioning block 19.

In a preferred embodiment, the rotating structure comprises a connecting rod 22 fixedly connected to the bottom of the positioning rod 16, and a ball-type universal wheel 23 is fixedly connected to both ends of the connecting rod 22 through bolts, so that the direction can be adjusted by rotating the ball-type universal wheel 23 on the surface of the connecting rod 22 and the position can be fixed through the bolts, so that the ball-type universal wheel 23 can be matched with the unfolding and folding of the support frame, and the whole device can flexibly move.

In a preferred embodiment, an auxiliary grid plate 24 is embedded in the middle of the tablet 2, and the surface of the ruler 5 and the surface of the tablet 2 are provided with scale marks 25 at positions below the auxiliary grid plate 24, so that the marking device can be operated to perform relatively precise marking and function drawing according to the scale marks through the cooperation of the auxiliary grid plate 24 and the scale marks 25.

The utility model discloses the theory of operation: when the device is used, firstly, the connecting block 18 slides on the positioning rod 16 to enable the support rods 20 which are rotatably connected at two sides to push the support legs 15 at two sides to be separated so as to adjust the device to a proper height, and the fastening bolt is rotated to fix the connecting block 18 on the surface of the positioning rod 16 through the positioning block 19. The angle of a ball-type universal wheel 23 on a connecting rod 22 is adjusted to enable the bottom of the ball-type universal wheel to be in contact with the ground and to be fixed in position through a fastening bolt, then a writing board 2 and a slide rail 4 are fixedly connected inside a bracket 1 through a bolt to complete the assembly of the device, when a function graph is drawn, a marking device is moved to a proper position through moving a scale 5 and a slide block 6, scales and an auxiliary grid, the slide block 6 is fixed on the surface of the scale 5 through the fastening bolt, a painting brush 13 is driven to be in contact with the surface of the auxiliary grid plate 24 through a connecting plate 11 and a mounting ring 12 by pressing a pressing block 9 so as to leave a mark on the surface of the auxiliary grid plate 24, the pressing block 9 is released so that the painting brush 13 is separated from the surface of the auxiliary grid plate 24 under the elastic force of a spring 10, and the scale 5 and the slide block 6, the use is comparatively nimble, makes things convenient for the teacher to draw the relevant figure of function and makes things convenient for the removal and the disassembling of device to accomodate.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a higher mathematics function demonstration teaching aid, includes bracket (1) and board (2) through bolt fixed connection at bracket (1) top, its characterized in that: the front surface of tablet (2) is close to top position fixedly connected with slide bar (3), the front surface of tablet (2) is close to fixedly connected with slide bar (4) between bottom position and bracket (1) lateral wall, the inside sliding connection of slide bar (4) has scale (5), the top sliding connection of scale (5) is on slide bar (3) surface, the sliding surface of scale (5) is connected with slider (6), one side fixed connection of slider (6) has the mark device, the opposite side threaded connection of slider (6) has fastening bolt, the bottom fixedly connected with support frame of bracket (1), the bottom of support frame is provided with rotating-structure.

2. A higher math function demonstration teaching aid according to claim 1, wherein: the marking device comprises a protective shell (7) fixedly connected to one side of a sliding block (6), a baffle (8) fixedly connected to the inside of the protective shell (7), a through groove is formed in the middle of the baffle (8), a pressing block (9) is slidably connected between the bottom walls of the baffle (8) and the protective shell (7), a spring (10) fixedly connected between one side of the pressing block (9) and the side wall of the protective shell (7), the other side of the pressing block (9) penetrates through the side wall of the protective shell (7), a connecting plate (11) fixedly connected to the top of the pressing block (9), a mounting ring (12) fixedly connected to the top of the connecting plate (11), and a painting brush (13) is arranged inside the mounting ring (12) in a penetrating mode.

3. A higher math function demonstration teaching aid according to claim 2, wherein: connecting plate (11) sliding connection is inside leading to the groove, the screw has been seted up to one side of collar (12), painting brush (13) are fixed in collar (12) through the fastening bolt of threaded connection in the screw, the lateral wall of protective housing (7) is all passed at the both ends of painting brush (13).

4. A higher math function demonstration teaching aid according to claim 3, wherein: the support frame includes fixed plate (14) of fixed connection in bracket (1) bottom, the both sides of fixed plate (14) all are rotated through the pivot and are connected with supporting leg (15), the bottom fixedly connected with locating lever (16) of fixed plate (14), the bottom fixedly connected with stopper (17) of locating lever (16), the surface sliding connection of locating lever (16) has fixing device.

5. A higher math function demonstration teaching aid according to claim 4, wherein: fixing device includes connecting block (18) of sliding connection on locating lever (16) surface, the top fixedly connected with locating piece (19) of connecting block (18), locating piece (19) are fixed on the surface of locating lever (16) through fastening bolt, the both sides of connecting block (18) all are connected with branch (20) through the pivot rotation, the one end of branch (20) is connected with connecting seat (21) through the pivot rotation, connecting seat (21) fixed connection is on a side surface of supporting leg (15).

6. A higher math function demonstration teaching aid according to claim 5, wherein: the rotating structure comprises a connecting rod (22) fixedly connected to the bottom of the positioning rod (16), and two ends of the connecting rod (22) are fixedly connected with spherical universal wheels (23) through bolts.

7. A higher math function demonstration teaching aid according to claim 6, wherein: an auxiliary grid plate (24) is embedded in the middle of the writing board (2), and scale marks (25) are arranged on the surfaces of the staff gauges (5) and the writing board (2) below the auxiliary grid plate (24).