CN209625555U - A kind of flat pendulum line demonstrator - Google Patents
A kind of flat pendulum line demonstrator Download PDFInfo
- Publication number
- CN209625555U CN209625555U CN201820642807.9U CN201820642807U CN209625555U CN 209625555 U CN209625555 U CN 209625555U CN 201820642807 U CN201820642807 U CN 201820642807U CN 209625555 U CN209625555 U CN 209625555U
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- China
- Prior art keywords
- runner
- screw rod
- gear
- paintbrush
- flat pendulum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000006073 displacement reaction Methods 0.000 claims abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Coating Apparatus (AREA)
Abstract
A kind of flat pendulum line demonstrator, including drawing board, paintbrush, runner and screw rod, runner and screw rod are rotatablely connected, one end of the runner central spindle is provided with rotating arm, the other end of runner central spindle is provided with a gear, and rotating arm, runner and gear are coaxially connected, moves synchronously；The screw rod and gear cooperate, and the rotation of lead screw passes to runner by gear, drive runner rotation straight-line displacement simultaneously；A locating clip is provided on rotating arm, locating clip fixes paintbrush；One end of screw rod is provided with a rotating device.It can be facilitated by the flat pendulum line demonstrator of the utility model, be stablized, the lively formation basic theory and geometric locus for specifically demonstrating flat pendulum line.
Description
Technical field
The utility model relates to a kind of teaching appliances, and in particular to a kind of flat pendulum line demonstrator for drawing flat pendulum line.
Background technique
One circle rolls always in the plane where it, and the track of some point movement is flat pendulum line on circumference.By right
The study and research of flat pendulum line, can allow the parametric equation of the better learning curve of student, before on the one hand can reviewing and consolidate
Straight line that face is learned, parabolical parametric equation, on the other hand to learn and understand that involute, epicycloid, hypocycloid are beaten below
Lower basis.
Existing flat pendulum line demonstration teaching aid stability is poor, and manual operation is got up inconvenience, big using difficulty, can not be fine
The track of flat pendulum line is drawn out on ground, and student can only be allowed to understand the formation basic theory of flat pendulum line, and student observes by the naked eye without intuitive
Impression；The specific forming process of flat pendulum line cannot be embodied and described.
Utility model content
In view of the deficienciess of the prior art, can facilitate the purpose of the utility model is to provide a kind of flat pendulum line demonstrator,
Fast, the stroke principle and geometric locus of flat pendulum line are specifically demonstrated.
In order to achieve the above object, the utility model provides a kind of flat pendulum line demonstrator, including drawing board, paintbrush, runner and
Screw rod.The drawing board is spliced by a vertical panel and level board, and the screw rod is horizontally arranged on the level board of drawing board
Bracket on, it is parallel with vertical panel.The runner and screw rod are rotatablely connected, and it is vertical that one end of the central spindle of the runner is provided with one
In the rotating arm of central spindle, the other end of the central spindle of runner is provided with a gear, and rotating arm, runner and gear are coaxially connected, synchronous
Movement.The screw rod and gear cooperate, and the rotation of lead screw passes to runner by gear, drive runner rotation straight line position simultaneously
It moves.Being horizontally disposed on the level board of the drawing board has a groove, runner can in groove left-right rotation.It is set on the rotating arm
It is equipped with a locating clip, locating clip fixes paintbrush, and the pen tip of paintbrush and the vertical panel of drawing board are vertical and contact；The screw rod
One end is provided with a rotating device.
Further, the locating clip is adjustable structure, can adjust distance of the paintbrush apart from axle center.
Further, the paintbrush can be pencil, chalk or any in other.
Further, the rotating device is swinging handle.
Using a kind of flat pendulum line demonstrator of the utility model, by the direction of motion of the fixed runner of groove, make by runner, rotation
The drive mechanism of pivoted arm and gear composition keeps stable during the motion.Runner and gear are coaxially fixed, and screw rod is integrally placed at
Lower section, keep entire drive mechanism reliable and stable.By the fixed paintbrush of locating clip, position of the locating clip on rotating arm is adjusted,
Flat pendulum line, short width flat pendulum line and long width flat pendulum line can be drawn out respectively.Flat pendulum line can be drawn by rotating swinging handle simultaneously, vividly
Specifically demonstrate the formation basic theory and geometric locus of flat pendulum line.The demonstrator is easy to operate, using reliable and stable.
Detailed description of the invention
Fig. 1 is the main view of the utility model flat pendulum line demonstrator；
Fig. 2 is the side view of the utility model flat pendulum line demonstrator；
Fig. 3 is the mating part enlarged drawing of the screw rod and gear in the utility model flat pendulum line demonstrator.
In figure: 1- drawing board 4- rotating arm 3- locating clip 5- runner 8- gear 7- rotating device 6-, 2- paintbrush
Bar 9- groove.
Specific embodiment
Referring to attached drawing, the specific embodiment of the utility model will be further illustrated.
As shown in Figure 1, Figure 2 and shown in Fig. 3, a kind of flat pendulum line demonstrator, including drawing board 1, paintbrush 2, runner 5 and screw rod 6.
Drawing board 1 is spliced by a vertical panel and level board.One end of the central spindle of runner 5 be provided with one perpendicular to central spindle rotating arm
4, the other end of the central spindle of runner 5 is provided with a gear 8, and rotating arm 4, runner 5 and gear 8 are coaxially connected, moves synchronously.Screw rod
It is horizontally arranged on the bracket on the level board of drawing board, it is parallel with vertical panel, and be located at and match above gear 8 with its screw thread
It closes.A locating clip 3 is provided on rotating arm 4, locating clip 3 is fixed by paintbrush 2, and locating clip is adjustable structure, can adjust paintbrush
Distance apart from central spindle.The pen tip of paintbrush 2 is vertical with the vertical panel of drawing board 1 and contacts.One end of screw rod 6 is provided with a shake
Handle 7.Being horizontally disposed on the level board of drawing board 1 has a groove 9, and runner 5 is located in groove, can horizontally slip.
Before drawing flat pendulum line using this demonstrator, first a drawing paper is fixed on drawing board 1, rotates swinging handle 7
So that runner 5 is moved to one end of groove 9, paintbrush 2 is fixed on the locating clip 3 on rotating arm 4, makes on pen tip and drawing board 1
Drawing paper just contact.
Swinging handle 7 is rotated, the drive mechanism for forming gear 8, runner 5 and rotating arm 4 is transported along groove 9 to other direction
It is dynamic, while the paintbrush 2 fixed on rotating arm 4 with locating clip 3, the track of flat pendulum line is drawn out on the drawing paper of drawing board 1.
By changing locating clip 3 on rotating arm 4 apart from the position of central spindle, flat pendulum line, short width flat pendulum line can be drawn out
With long these three flat pendulum lines of width flat pendulum line.
Claims (4)
1. a kind of flat pendulum line demonstrator, including drawing board (1), paintbrush (2), runner (5) and screw rod (6), it is characterised in that: described
Drawing board (1) is spliced by a vertical panel and level board；The screw rod (6) is horizontally arranged on the level board of drawing board (1)
Bracket on, it is parallel with vertical panel；The runner (5) and screw rod (6) are rotatablely connected, and one end of the central spindle of the runner is provided with
One perpendicular to central spindle rotating arm (4), the other end of the central spindle of runner is provided with a gear (8), rotating arm (4), runner (5) with
Gear (8) is coaxially connected, moves synchronously；The screw rod (6) and gear cooperate, and the rotation of lead screw passes to runner by gear,
Drive runner rotation straight-line displacement simultaneously；Being horizontally disposed on the level board of the drawing board (1) has a groove (9), runner (5) position
It, can left-right rotation in inner in groove (9)；It is provided with a locating clip (3) on the rotating arm (4), locating clip (3) is by paintbrush (2)
Fixed, the pen tip of paintbrush (2) is vertical with the vertical panel of drawing board (1) and contacts；One end of the screw rod (6) is provided with a rotation
Device (7).
2. flat pendulum line demonstrator according to claim 1, it is characterised in that: the locating clip (3) is adjustable structure, can
Adjust distance of the paintbrush apart from axle center.
3. flat pendulum line demonstrator according to claim 2, it is characterised in that: the paintbrush (2) can be pencil, chalk or
Any in other.
4. flat pendulum line demonstrator according to any one of claims 1 to 3, it is characterised in that: the rotating device (7) is
Swinging handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820642807.9U CN209625555U (en) | 2018-05-02 | 2018-05-02 | A kind of flat pendulum line demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820642807.9U CN209625555U (en) | 2018-05-02 | 2018-05-02 | A kind of flat pendulum line demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209625555U true CN209625555U (en) | 2019-11-12 |
Family
ID=68441341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820642807.9U Expired - Fee Related CN209625555U (en) | 2018-05-02 | 2018-05-02 | A kind of flat pendulum line demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209625555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110992785A (en) * | 2019-12-31 | 2020-04-10 | 郑州航空工业管理学院 | Cycloid demonstration teaching aid that college mathematics teaching used |
-
2018
- 2018-05-02 CN CN201820642807.9U patent/CN209625555U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110992785A (en) * | 2019-12-31 | 2020-04-10 | 郑州航空工业管理学院 | Cycloid demonstration teaching aid that college mathematics teaching used |
| CN110992785B (en) * | 2019-12-31 | 2021-08-24 | 郑州航空工业管理学院 | Cycloid demonstration teaching aid that college mathematics teaching used |
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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 |
Granted publication date: 20191112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |