CN2148941Y - Screw micrometer for teaching - Google Patents
Screw micrometer for teaching Download PDFInfo
- Publication number
- CN2148941Y CN2148941Y CN 92236273 CN92236273U CN2148941Y CN 2148941 Y CN2148941 Y CN 2148941Y CN 92236273 CN92236273 CN 92236273 CN 92236273 U CN92236273 U CN 92236273U CN 2148941 Y CN2148941 Y CN 2148941Y
- Authority
- CN
- China
- Prior art keywords
- screw
- fixed muffle
- screw rod
- micrometer
- teaching
- 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
Links
Abstract
The utility model provides a screw micrometer for teaching, which is characterized in that a window exposing the interior screw rod outside is arranged on a fixed sleeve of the existing screw micrometer. The students can observe the relationship visually and clearly that the screw rod rotates a round and then the screw rod advances or retreats a screw pitch, and can master the theory of the screw micrometer when the micrometer is used for teaching.
Description
The utility model relates to a kind of micrometer caliper, particularly a kind of teaching micrometer caliper.
Existing micrometer caliper mainly is made of screw rod, fixed muffle, microdrum and shelf.Micrometer caliper shown in the 7th page in " physics demonstrative experiments in middle school and Physical Experiment technology " book that Wuhan department of physics of college of education writes.This micrometer caliper not only is used for producing but also be used for imparting knowledge to students.But when being used for teaching explanation micrometer principle, owing to can not show its inner structure, especially screw rod is in rotation while advance and retreat process in the axial direction, be that screw rod rotates a circle, a kind of like this relation of the pitch of then advancing and retreat in the axial direction, thereby directly perceived, distinct understanding can not be arranged to the micrometer principle.Sometimes teacher explains multipass, and the student is still fuzzyyer, and this problem exists in teaching always.
The teaching micrometer caliper that provides a kind of energy to show the micrometer principle is provided the purpose of this utility model directly perceived, clear, understandablely.
Can realize the purpose of this utility model by following scheme.A kind of micrometer caliper of being made up of screw rod, fixed muffle, microdrum and shelf: fixed muffle is fixed on an end of shelf; Screw rod and fixed muffle aperture surface spiral join, and it is relative with the anvil block of the shelf other end that screw rod one end stretches out fixed muffle, and the other end and microdrum inner bottom part are fixedly connected; Microdrum is enclosed within the fixed muffle surface, it is characterized in that having one and make the window of internal screw outside being revealed on fixed muffle.
Sentence screw pitch for the interval unit is provided with row's markings at window edge, on screw flight, be provided with monumented point.
Advantage of the present utility model is, when saying uncoiling micrometer principle with the utility model, when the student can be directly see the screw rod rotation by window in the axis direction process of advancing and retreat, be that screw rod and microdrum rotate a circle, monumented point on the screw flight also rotates a circle, and the markings of corresponding window edge advance or a slow astern pitch, thereby can clearly set up the notion of spiral micrometer.The length of the object of surveying read of rule from the fixed muffle and the rule reading sum on the microdrum just has been understood that like this, and this length is the distance that moved in rotary course of screw rod just.So this teaching micrometer caliper can make the student intuitively, clearly grasp spiral micrometer principle.
Below in conjunction with accompanying drawing the utility model is further set forth.
Accompanying drawing is a schematic perspective view of the present utility model.
Fixed muffle 1 left end is fixed on the left end of shelf 2.Screw rod 3 joins with fixed muffle 1 aperture surface spiral, and left end exposure fixed muffle 1 is relative with shelf 2 left end anvil blocks 4, and the inner bottom part of right-hand member and microdrum 5 is fixedly connected.A circle rule 6 is established on microdrum 5 left end surfaces.Fixed muffle 1 surface is provided with rule 7 vertically.Have one on the fixed muffle 1 and make internal screw be revealed in outer window 8, sentence screw rod 3 pitch for the interval unit is provided with row's markings 9, on screw rod 3 screw threads, be provided with monumented point 10 at window edge.
Claims (2)
1, a kind of micrometer caliper of being made up of screw rod, fixed muffle, microdrum, shelf: fixed muffle is fixed on an end of shelf; Screw rod and fixed muffle aperture surface spiral join, it is relative with the anvil block of the shelf other end that screw rod one end stretches out fixed muffle, and the other end and microdrum inner bottom part are fixedly connected, and microdrum is enclosed within the fixed muffle surface, it is characterized in that, on fixed muffle, have one and make the window of internal screw outside being revealed in.
2, by the described micrometer caliper of claim 1, it is characterized in that sentencing screw pitch for the interval unit is provided with row's markings at the window of fixed muffle, on screw flight, be provided with punctuate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92236273 CN2148941Y (en) | 1992-10-01 | 1992-10-01 | Screw micrometer for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92236273 CN2148941Y (en) | 1992-10-01 | 1992-10-01 | Screw micrometer for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2148941Y true CN2148941Y (en) | 1993-12-08 |
Family
ID=33777859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92236273 Expired - Fee Related CN2148941Y (en) | 1992-10-01 | 1992-10-01 | Screw micrometer for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2148941Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728196B (en) * | 2004-07-27 | 2010-05-26 | 哈尔滨量具刃具集团有限责任公司 | Demo rack for products in meters with pole |
| CN104180744A (en) * | 2014-08-01 | 2014-12-03 | 奇瑞汽车股份有限公司 | Distance measuring apparatus |
-
1992
- 1992-10-01 CN CN 92236273 patent/CN2148941Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728196B (en) * | 2004-07-27 | 2010-05-26 | 哈尔滨量具刃具集团有限责任公司 | Demo rack for products in meters with pole |
| CN104180744A (en) * | 2014-08-01 | 2014-12-03 | 奇瑞汽车股份有限公司 | Distance measuring apparatus |
| CN104180744B (en) * | 2014-08-01 | 2017-01-25 | 奇瑞汽车股份有限公司 | Distance measuring apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |