CN212061589U - Paraboloid demonstration teaching aid for college mathematics teaching - Google Patents
Paraboloid demonstration teaching aid for college mathematics teaching Download PDFInfo
- Publication number
- CN212061589U CN212061589U CN202020966487.XU CN202020966487U CN212061589U CN 212061589 U CN212061589 U CN 212061589U CN 202020966487 U CN202020966487 U CN 202020966487U CN 212061589 U CN212061589 U CN 212061589U
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- China
- Prior art keywords
- switch
- electromagnetic coil
- revolving axle
- base
- left end
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Abstract
The utility model provides a parabolic demonstration teaching aid that college mathematics teaching used, includes base, shell body, wire and revolving axle, open the base left end has the group battery mounting groove, installs the group battery in the group battery mounting groove, and open the base right-hand member has the switch slot, installs the switch in the switch slot, the negative pole of group battery and the left end intercommunication of switch, compare with prior art, the utility model discloses following beneficial effect has: the utility model discloses a parabolic demonstration teaching aid that college mathematical education used can alleviate the whole weight of equipment through designing one kind and drive the device of revolving axle gyration through the electromagnetic induction principle, and the mr of being convenient for carries on class, can also show the electromagnetic induction principle to classmates in addition when showing paraboloid, through adopting the revolving axle mounting means of duplex bearing going on fixing from top to bottom, can make the revolving axle drive more easily and can guarantee the stability of revolving axle at the gyration in-process.
Description
Technical Field
The utility model relates to a parabolic demonstration teaching aid that college mathematics teaching used belongs to the teaching equipment field.
Background
At present, in the process of mathematics teaching of university, the problems related to the paraboloid are often explained to students, but the specific shape of the paraboloid is difficult to be clearly understood by each student only through language description, so that teachers need to perform simulation teaching by means of some real objects.
At present, teachers mostly borrow electronic equipment such as computers when explaining and teaching paraboloids, but due to the fact that the teachers are inconvenient to use computers additionally in class, the electronic equipment needs to be displayed more intuitively and conveniently, and the existing display equipment only can display the formation of the paraboloids, so that the comprehensive development of students is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a parabolic demonstration teaching aid that university's mathematics teaching used, through designing one kind and forming parabolic equipment through parabola profile gyration in order to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a paraboloid demonstration teaching aid for college mathematics teaching comprises a base, an outer shell, a lead and a rotating shaft, wherein a battery pack mounting groove is formed in the left end of the base, a battery pack is mounted in the battery pack mounting groove, a switch groove is formed in the right end of the base, a switch is mounted in the switch groove, the negative electrode of the battery pack is communicated with the left end of the switch, the outer shell is mounted above the base, the left end of the lead is connected with the right end of a first electromagnetic coil, the right end of the lead is connected with the left end of a second electromagnetic coil, the left end of the first electromagnetic coil is connected with the positive electrode of the battery pack, the right end of the second electromagnetic coil is connected with the right end of the switch, the first electromagnetic coil is mounted on the left side of the outer shell, a first bearing base is arranged at the middle bottom of the, the bearing plate is fixedly installed at a shaft shoulder at the upper part of the rotating shaft, a first bar magnet is fixedly installed on the left side of the bearing plate, a second bar magnet is fixedly installed on the right side of the bearing plate, and a metal wire is installed at the top end of the rotating shaft.
Further, the lead wire, the first electromagnetic coil and the second electromagnetic coil are all installed inside the outer shell.
Further, the installation direction of the first bar magnet is the same as the installation direction of the second bar magnet.
Further, the shape of the wire is a parabolic shape.
The utility model has the advantages that: the utility model discloses a parabolic demonstration teaching aid that college mathematical education used can alleviate the whole weight of equipment through designing one kind and drive the device of revolving axle gyration through the electromagnetic induction principle, and the mr of being convenient for carries on class, can also show the electromagnetic induction principle to classmates in addition when showing paraboloid, through adopting the revolving axle mounting means of duplex bearing going on fixing from top to bottom, can make the revolving axle drive more easily and can guarantee the stability of revolving axle at the gyration in-process.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of a paraboloid demonstration teaching aid used in university mathematics teaching of the present invention;
in the figure: the battery pack comprises a base 1, a battery pack 2, a battery pack 3, a switch 4, a switch 5, a switch 6, an outer shell 7, a lead wire 8, a first electromagnetic coil 9, a second electromagnetic coil 10, a first bearing base 11, a second bearing base 12, a rotating shaft 13, a bearing plate 14, a first bar magnet 15, a second bar magnet 15 and a metal wire 16.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a parabolic demonstration teaching aid that college mathematics teaching used, includes base 1, shell body 6, wire 7 and revolving axle 12, and open at the 1 left end of base has group battery mounting groove 2, installs group battery 3 in group battery mounting groove 2, and open and shut off groove 4 is opened to the 1 right-hand member of base, installs switch 5 in the shut off groove 4, and group battery 3's negative pole and switch 5's left end intercommunication, shell body 6 are installed in base 1 top, first solenoid 8 right-hand member is connected to 7 left ends of wire, and second solenoid 9 left ends is connected to 7 right-hand members of wire, 3 anodals of group battery are connected to first solenoid 8 left ends, second solenoid 9 right-hand member linked switch 5's right-hand member, first solenoid 8 installs in the left side of shell body 6, and second solenoid 9 installs.
The bottom of the middle of the outer shell 6 is provided with a first bearing base 10, the upper part of the middle of the outer shell 6 is provided with a second bearing base 11, the rotating shaft 12 is arranged at the center position of the outer shell 6 through a bearing, a bearing plate 13 is fixedly arranged at a shaft shoulder at the upper part of the rotating shaft 12, a first bar magnet 14 is fixedly arranged at the left side of the bearing plate 13, a second bar magnet 15 is fixedly arranged at the right side of the bearing plate 13, and a metal wire 16 is arranged at the top end of the rotating.
The lead wire 7, the first solenoid coil 8 and the second solenoid coil 9 are all mounted inside the outer housing 6.
The first bar magnet 14 and the second bar magnet 15 are attached in the same direction, and the first bar magnet 14 and the second bar magnet 15 are secured to be able to drive the rotating shaft 12 to rotate in the same rotating direction around the center axis of the rotating shaft 12 when the first electromagnetic coil 8 and the second electromagnetic coil 9 are energized.
The wire 16 is shaped as a parabola, which is directly formed as a paraboloid when revolved.
As an embodiment of the present invention: when the circuit is used, whether the circuit is faulty or not is detected firstly, after the circuit is confirmed to be unobstructed, the right end of the switch 5 is pressed down by hand to switch on the circuit, when current flows through the first electromagnetic coil 8 and the second electromagnetic coil 9, under the principle of electromagnetic induction, the left end of the first bar magnet 14 and the right end of the second bar magnet 15 are subjected to forces in the same rotation direction, the first bar magnet 14 and the second bar magnet 15 are fixedly installed on the bearing plate 13, and the bearing plate 13 is fixedly installed on the rotation shaft 12, so that the rotation shaft 12 can make rotation motion under the action of the magnetic force, the parabolic metal wire 16 at the top end of the rotation shaft 12 is driven to rotate to form a paraboloid, and the switch 5 is directly lifted by hand to disconnect the circuit after the circuit is stopped being used.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a parabolic demonstration teaching aid that college mathematics teaching used, includes base (1), shell body (6), wire (7) and revolving axle (12), its characterized in that: the battery pack is characterized in that a battery pack mounting groove (2) is formed in the left end of the base (1), a battery pack (3) is mounted in the battery pack mounting groove (2), a switch groove (4) is formed in the right end of the base (1), a switch (5) is mounted in the switch groove (4), the negative electrode of the battery pack (3) is communicated with the left end of the switch (5), the outer shell (6) is mounted above the base (1), the left end of the lead (7) is connected with the right end of a first electromagnetic coil (8), the right end of the lead (7) is connected with the left end of a second electromagnetic coil (9), the left end of the first electromagnetic coil (8) is connected with the positive electrode of the battery pack (3), the right end of the second electromagnetic coil (9) is connected with the right end of the switch (5), the first electromagnetic coil (8) is mounted on the left side of the outer shell (6), the second electromagnetic coil (9) is mounted on the right side, the middle upper portion of shell body (6) is equipped with second bearing base (11), the central point that revolving axle (12) pass through the bearing and install in shell body (6) puts, and shaft shoulder department fixed mounting on revolving axle (12) upper portion has loading board (13), the left side fixed mounting of loading board (13) has first bar magnet (14), and the right side fixed mounting of loading board (13) has second bar magnet (15), wire (16) are installed on the top of revolving axle (12).
2. The paraboloid demonstration teaching aid for university mathematics teaching of claim 1, wherein: the lead (7), the first electromagnetic coil (8) and the second electromagnetic coil (9) are all installed inside the outer shell (6).
3. The paraboloid demonstration teaching aid for university mathematics teaching of claim 1, wherein: the installation direction of the first bar magnet (14) is the same as that of the second bar magnet (15).
4. The paraboloid demonstration teaching aid for university mathematics teaching of claim 1, wherein: the wire (16) has a parabolic shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020966487.XU CN212061589U (en) | 2020-06-01 | 2020-06-01 | Paraboloid demonstration teaching aid for college mathematics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020966487.XU CN212061589U (en) | 2020-06-01 | 2020-06-01 | Paraboloid demonstration teaching aid for college mathematics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212061589U true CN212061589U (en) | 2020-12-01 |
Family
ID=73519974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020966487.XU Expired - Fee Related CN212061589U (en) | 2020-06-01 | 2020-06-01 | Paraboloid demonstration teaching aid for college mathematics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212061589U (en) |
-
2020
- 2020-06-01 CN CN202020966487.XU patent/CN212061589U/en not_active Expired - Fee Related
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Legal Events
| 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: 20201201 |