CN204155500U - A kind of dotted timer - Google Patents
A kind of dotted timer Download PDFInfo
- Publication number
- CN204155500U CN204155500U CN201420583077.1U CN201420583077U CN204155500U CN 204155500 U CN204155500 U CN 204155500U CN 201420583077 U CN201420583077 U CN 201420583077U CN 204155500 U CN204155500 U CN 204155500U
- Authority
- CN
- China
- Prior art keywords
- paper tape
- scale mark
- ready
- chute
- slide block
- 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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Abstract
The utility model relates to a kind of education experiment articles for use, particularly discloses a kind of dotted timer.It comprises gets platform and paper tape ready, is provided with chute getting platform one end ready, is provided with the slide block of Band clamp in described chute, described slide block is connected with tooth bar, described tooth bar with turn gears meshing, described in turn gear and rotated by minitype motor driving, the two sides of described paper tape is all provided with scale mark.The length of described scale mark equals the width of paper tape.Described paper tape is provided with some row tearing holes.Micromachine can drive paper tape to move with uniform velocity, guarantee the precision tested, arrange on paper tape simultaneously scale mark can make between two points between be interposed between measurement and get up more directly perceived, more convenient, there will not be error, and because there is scale mark on two sides, the length of scale mark equals the width of paper tape, and such paper tape is taken back and just can be used, and need not choose by the side, and do not worry that paper tape has been put partially yet, and by tearing hole is also convenient, used experiment paper tape is torn it down.
Description
(1) technical field
The utility model relates to a kind of education experiment articles for use, particularly a kind of dotted timer.
(2) background technology
Dotted timer is a kind of instrument of Measuring Time, is usually used in education experiment.If the paper tape that moving object drives passes through dotted timer, the point that paper tape is laid just have recorded the time of object of which movement, point on paper tape also correspondingly indicates moving object in not position in the same time, just can the moving situation of object analysis by measuring interval on paper tape between point.Usually, paper tape is exactly a blank strip paper, rule is used to measure after getting ready, inconvenient, if paper tape does not smooth also can cause error to experimental data, take to be not easy to tear during used paper tape simultaneously, need to prepare scissors etc., and can not accomplish at the uniform velocity when being pulled through paper tape, also have impact on experiment effect.
(3) summary of the invention
The utility model in order to make up the defect of prior art, provide a kind of with a scale can the dotted timer at interval between Measurement accuracy each point.
The utility model is achieved by the following technical solution:
A kind of dotted timer, comprise and get platform and paper tape ready, it is characterized in that: be provided with chute getting platform one end ready, the slide block of Band clamp is provided with in described chute, described slide block is connected with tooth bar, described tooth bar with turn gears meshing, described in turn gear and rotated by minitype motor driving, the two sides of described paper tape is all provided with scale mark.
The length of described scale mark equals the width of paper tape.
Described paper tape is provided with some row tearing holes.
The beneficial effects of the utility model are:
Micromachine can drive paper tape to move with uniform velocity, guarantee the precision tested, arrange on paper tape simultaneously scale mark can make between two points between be interposed between measurement and get up more directly perceived, more convenient, there will not be error, and because there is scale mark on two sides, the length of scale mark equals the width of paper tape, and such paper tape is taken back and just can be used, and need not choose by the side, and do not worry that paper tape has been put partially yet, and by tearing hole is also convenient, used experiment paper tape is torn it down.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is plan structure schematic diagram of the present utility model;
In figure, 1 gets platform ready, 2 chutes, 3 slide blocks, 4 clips, 5 tooth bars, 6 turns of gears, 7 micromachines, 8 paper tapes, 9 scale marks, 10 tearing holes.
(5) embodiment
Accompanying drawing is specific embodiment of the utility model.This kind of dotted timer, comprise and get platform 1 and paper tape 8 ready, a chute 2 is installed getting platform 1 one end ready, the longitudinal direction of chute 2 with get ready platform 1 longitudinally point-blank, a slide block that can horizontally slip 3 is had in chute 2, slide block 3 installs a clip 4, the mouth of clip 4 is towards getting platform 1 ready, the side of slide block 3 connects a toothed rack 5, tooth bar 5 is positioned at the edge of chute 2 and gets ready on platform 1 and can horizontally slip, tooth bar 5 with turn gear 6 and engage, turn gear 6 to be connected with the output terminal of micromachine 7, by micromachine 7 driven rotary, scale mark 9 is provided with in the one side of paper tape 8, another side also can high scale line 9.And the length of scale mark 9 preferably equals the width of paper tape 8, just do not worry that paper tape 8 has been put partially so in use, meanwhile, paper tape 8 also has some row tearing holes 10, conveniently take when taking the paper tape 8 of experiment.
During use, one end of paper tape 8 is clipped on clip 4, open dotted timer and micromachine 7 simultaneously, under the drive of micromachine 7, uniform motion on platform 1 got ready by paper tape 8, get a series of point, so just directly can read the distance on paper tape 8 between two points, convenient quick again.
Claims (3)
1. a dotted timer, comprise and get platform (1) and paper tape (8) ready, it is characterized in that: be provided with chute (2) getting platform (1) one end ready, the slide block (3) of Band clamp (4) is provided with in described chute (2), described slide block (3) is connected with tooth bar (5), described tooth bar (5) with turn gear (6) and engage, described in turn gear (6) by micromachine (7) driven rotary, the two sides of described paper tape (8) is all provided with scale mark (9).
2. dotted timer according to claim 1, is characterized in that, the length of described scale mark (9) equals the width of paper tape (8).
3. dotted timer according to claim 1 and 2, is characterized in that, described paper tape (8) is provided with some row tearing holes (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583077.1U CN204155500U (en) | 2014-10-10 | 2014-10-10 | A kind of dotted timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583077.1U CN204155500U (en) | 2014-10-10 | 2014-10-10 | A kind of dotted timer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155500U true CN204155500U (en) | 2015-02-11 |
Family
ID=52513599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420583077.1U Expired - Fee Related CN204155500U (en) | 2014-10-10 | 2014-10-10 | A kind of dotted timer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155500U (en) |
-
2014
- 2014-10-10 CN CN201420583077.1U patent/CN204155500U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |