CN213691059U - Teaching aid is used in university's mathematics limit teaching - Google Patents
Teaching aid is used in university's mathematics limit teaching Download PDFInfo
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- CN213691059U CN213691059U CN202022712358.0U CN202022712358U CN213691059U CN 213691059 U CN213691059 U CN 213691059U CN 202022712358 U CN202022712358 U CN 202022712358U CN 213691059 U CN213691059 U CN 213691059U
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- lifting
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Abstract
The utility model discloses a teaching aid is used in university's mathematics limit teaching, the on-line screen storage device comprises a base, be provided with elevating system on the base, the elevating system upper end is provided with slewing mechanism, the slewing mechanism top is rotated and is connected with first backup pad, fixed mounting has the show board in the first backup pad, show board one side is the blank, and the opposite side is the grid board, and through setting up the show board into net face and white board face, the net face is favorable to the painting and calligraphy to the limit picture to make things convenient for student's understanding more, the white board face then is used for mr's writing, and the function is various, makes things convenient for mr's classroom explanation.
Description
Technical Field
The utility model relates to a teaching assistance device technical field specifically is a teaching aid is used in college mathematics limit teaching.
Background
The teaching aid refers to a model, a real object, a specimen, an instrument, a chart, a slide show and the like for explaining something, and comprises teaching equipment, a teaching instrument, practical training equipment, education equipment, experimental equipment, a teaching specimen, a teaching model and the like, advanced mathematics is a basic course of university, advanced mathematics is a basic subject formed by intersecting simple calculus, probability theory and mathematical statistics, deep algebra and geometry and other aspects, and mainly comprises the calculus, and various textbooks in other aspects are slightly different.
In the teaching to the limit in the present high number teaching, limit knowledge is comparatively abstract, lacks the teaching aid and is unfavorable for understanding and study to the student.
Disclosure of Invention
An object of the utility model is to provide a teaching aid is used in teaching of university's mathematics limit to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a teaching aid for university mathematics limit teaching comprises a base, wherein a lifting mechanism is arranged on the base, a rotating mechanism is arranged at the upper end of the lifting mechanism, a first supporting plate is rotatably connected above the rotating mechanism, a display board is fixedly arranged on the first supporting plate, one side of the display board is a white board, and the other side of the display board is a grid board;
the lifting mechanism comprises a first threaded rod, a lifting outer rod, a lifting inner rod and a connecting rod, a groove is formed in the base, the first threaded rod is connected to the groove in a rotating mode, the left thread and the right thread of the first threaded rod are opposite, the lifting outer rod is fixedly mounted on the groove, a sliding groove is formed in the lifting outer rod, a sliding block is connected to the sliding groove in a sliding mode, the lifting inner rod is fixedly mounted on the sliding block, a first connecting block is fixedly mounted on the lifting inner rod, a moving block is connected to the first threaded rod in a threaded mode, a second connecting block is fixedly mounted on the moving block, the connecting rod is connected to the first connecting block and the second connecting block in a rotating mode, and the handle is fixedly connected to the.
The utility model discloses further scheme: the rotating mechanism comprises a fixed block, a clamping groove, a clamping block and a spring, the lifting inner rod is fixedly provided with the fixed block, the clamping groove is formed in the fixed block, the first supporting plate is fixedly connected with a third connecting block, the third connecting block is rotatably connected with a supporting rod, one end of the supporting rod is fixedly provided with the clamping block, the clamping block is matched with the clamping groove, the other end of the supporting rod is fixedly provided with a pressing plate, and the spring is fixedly arranged between the supporting rod and the first supporting plate.
The utility model discloses further scheme: and the first supporting plate is fixedly provided with a storage box.
The utility model discloses further scheme: the both ends fixed mounting of base has the second backup pad, threaded connection has the second threaded rod in the second backup pad, the bottom fixed mounting of second threaded rod has the non-slip rubber seat.
The utility model discloses further scheme: the bottom end of the base is fixedly provided with universal wheels.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a set up the show board into net face and white board face, the net face is favorable to the painting and calligraphy to the limit picture to make things convenient for student's understanding more, white board face then is used for mr's writing, and the function is various, makes things convenient for mr's classroom explanation.
Drawings
Fig. 1 is a schematic structural diagram of a teaching aid for university mathematics limit teaching.
Fig. 2 is a schematic perspective view of a teaching aid for university mathematics limit teaching.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Notations for reference numerals: 1-base, 2-groove, 3-first threaded rod, 4-moving block, 5-second connecting block, 6-connecting rod, 7-lifting outer rod, 8-chute, 9-sliding block, 10-lifting inner rod, 11-first connecting block, 12-first supporting plate, 13-storage box, 14-display plate, 15-universal wheel, 16-second supporting plate, 17-second threaded rod, 18-anti-skid rubber seat, 19-rotating handle, 20-fixing block, 21-clamping groove, 22-clamping block, 23-supporting rod, 24-third connecting block, 25-spring and 26-pressing plate.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.
To the teaching of limit in the high number teaching, limit knowledge is comparatively abstract, lacks the teaching aid and is unfavorable for understanding and study to the student, through setting up the show board into net face and whiteboard face, the net face is favorable to the painting and calligraphy to the limit picture to make things convenient for student's understanding more, the whiteboard face then is used for mr's writing, and the function is various, makes things convenient for mr's classroom explanation.
Referring to fig. 1-2, in an embodiment, a teaching aid for university mathematics limit teaching includes a base 1, a lifting mechanism is arranged on the base 1, a rotating mechanism is arranged at the upper end of the lifting mechanism, a first supporting plate 12 is rotatably connected above the rotating mechanism, a display plate 14 is fixedly mounted on the first supporting plate 12, a white plate is arranged on one side of the display plate 14, and a grid plate is arranged on the other side of the display plate;
the lifting mechanism comprises a first threaded rod 3, a lifting outer rod 7, a lifting inner rod 10 and a connecting rod 6, a groove 2 is formed in the base 1, the first threaded rod 3 is connected to the groove 2 in a rotating mode, the left thread and the right thread of the first threaded rod 3 are opposite, the lifting outer rod 7 is fixedly mounted on the groove 2, a sliding groove 8 is formed in the lifting outer rod 7, a sliding block 9 is connected to the sliding groove 8 in a sliding mode, the lifting inner rod 10 is fixedly mounted on the sliding block 9, a first connecting block 11 is fixedly mounted on the lifting inner rod 10, a moving block 4 is connected to the first threaded rod 3 in a threaded mode, a second connecting block 5 is fixedly mounted on the moving block 4, the connecting rod 6 is connected to the first connecting block 11 and the second connecting block 5 in a rotating mode, and the left end of the first threaded rod 3.
Above-mentioned embodiment is when using, through setting up show board 14 into net face and whiteboard face, the net face is favorable to the painting and calligraphy to the limit picture, thereby make things convenient for student's understanding more, the whiteboard face then is used for mr's writing, when show board 14 need carry out height control, through changeing 19, thereby drive first threaded rod 3 and rotate, thereby drive movable block 4 and remove on first threaded rod 3, thereby slide from top to bottom in outer pole 7 of going up and down through connecting rod 6 drive interior pole 10 of going up and down, thereby realize the altitude variation of show board 14.
Referring to fig. 3, in a preferred embodiment, the rotating mechanism includes a fixed block 20, a slot 21, a fixture block 22 and a spring 25, the fixed block 20 is fixedly mounted on the inner lifting rod 10, the slot 21 is formed in the fixed block 20, a third connecting block 24 is fixedly connected to the first support plate 12, a support rod 23 is rotatably connected to the third connecting block 24, the fixture block 22 is fixedly mounted at one end of the support rod 23, the fixture block 22 is matched with the slot 21, a pressing plate 26 is fixedly mounted at the other end of the support rod 23, and the spring 25 is fixedly mounted between the support rod 23 and the first support plate 12.
Above-mentioned embodiment is when using, through pressing movable plate 26 to lift bracing piece 23 to extrusion spring 25, bracing piece 23 makes fixture block 22 and draw-in groove 21 break away from when rotating on third connecting block 24, then rotates show board 14 to suitable angle, then loosens and presses movable plate 26, and under spring 25's effect, bracing piece 23 resets, and fixture block 22 and draw-in groove 21 chucking, thereby realize according to the rotation of reality demand to show board 14.
Referring to fig. 1, in a preferred embodiment, second supporting plates 16 are fixedly mounted at two ends of the base 1, a second threaded rod 17 is connected to the second supporting plates 16 in a threaded manner, an anti-skid rubber seat 18 is fixedly mounted at a bottom end of the second threaded rod 17, and a universal wheel 15 is fixedly mounted at a bottom end of the base 1.
Above-mentioned embodiment is when using, through setting up universal wheel 15 to the convenient removal to the teaching aid, after the teaching aid removed suitable position, through twisting second threaded rod 17, thereby make anti-skidding offset plate 18 and ground contact and extrusion, thereby play the fixed action to the teaching aid.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a teaching aid is used in teaching of university's mathematics limit, includes base (1), its characterized in that: the base (1) is provided with a lifting mechanism, the upper end of the lifting mechanism is provided with a rotating mechanism, a first supporting plate (12) is rotatably connected above the rotating mechanism, a display plate (14) is fixedly installed on the first supporting plate (12), one side of the display plate (14) is a white plate, and the other side of the display plate (14) is a grid plate;
the lifting mechanism comprises a first threaded rod (3), a lifting outer rod (7), a lifting inner rod (10) and a connecting rod (6), a groove (2) is formed in the base (1), the first threaded rod (3) is connected in the groove (2) in a rotating mode, the left thread and the right thread of the first threaded rod (3) are opposite, the lifting outer rod (7) is fixedly installed on the groove (2), a sliding groove (8) is formed in the lifting outer rod (7), a sliding block (9) is connected to the sliding groove (8) in a sliding mode, the lifting inner rod (10) is fixedly installed on the sliding block (9), a first connecting block (11) is fixedly installed on the lifting inner rod (10), a moving block (4) is connected to the first threaded rod (3) in a threaded mode, a second connecting block (5) is fixedly installed on the moving block (4), and the connecting rod (6) is connected to the first connecting block (11) and the second connecting block, the left end of the first threaded rod (3) is fixedly connected with a rotating handle (19).
2. A teaching aid for university mathematics limits teaching as claimed in claim 1, wherein: slewing mechanism includes fixed block (20), draw-in groove (21), fixture block (22) and spring (25), fixed mounting has fixed block (20) on pole (10) in the lift, draw-in groove (21) have been seted up on fixed block (20), fixedly connected with third connecting block (24) are gone up in first backup pad (12), it is connected with bracing piece (23) to rotate on third connecting block (24), the one end fixed mounting of bracing piece (23) has fixture block (22), fixture block (22) and draw-in groove (21) cooperation set up, the other end fixed mounting of bracing piece (23) has according to movable plate (26), fixed mounting has spring (25) between bracing piece (23) and first backup pad (12).
3. A teaching aid for university mathematics limits teaching as claimed in claim 2, wherein: and the first supporting plate (12) is fixedly provided with a storage box (13).
4. A teaching aid for university mathematics limits teaching as claimed in claim 1, wherein: the both ends fixed mounting of base (1) has second backup pad (16), threaded connection has second threaded rod (17) on second backup pad (16), the bottom fixed mounting of second threaded rod (17) has anti-skidding gluey seat (18).
5. A teaching aid for university mathematics limits teaching as claimed in claim 1, wherein: the bottom end of the base (1) is fixedly provided with universal wheels (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022712358.0U CN213691059U (en) | 2020-11-22 | 2020-11-22 | Teaching aid is used in university's mathematics limit teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022712358.0U CN213691059U (en) | 2020-11-22 | 2020-11-22 | Teaching aid is used in university's mathematics limit teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213691059U true CN213691059U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022712358.0U Expired - Fee Related CN213691059U (en) | 2020-11-22 | 2020-11-22 | Teaching aid is used in university's mathematics limit teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213691059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114512034A (en) * | 2022-02-21 | 2022-05-17 | 武汉周谦科技有限公司 | Intelligent whiteboard capable of realizing multi-machine interaction |
-
2020
- 2020-11-22 CN CN202022712358.0U patent/CN213691059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114512034A (en) * | 2022-02-21 | 2022-05-17 | 武汉周谦科技有限公司 | Intelligent whiteboard capable of realizing multi-machine interaction |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210713 Termination date: 20211122 |