CN108645317A - A kind of high school mathematics cylinder device for measuring circumference - Google Patents
A kind of high school mathematics cylinder device for measuring circumference Download PDFInfo
- Publication number
- CN108645317A CN108645317A CN201810412605.XA CN201810412605A CN108645317A CN 108645317 A CN108645317 A CN 108645317A CN 201810412605 A CN201810412605 A CN 201810412605A CN 108645317 A CN108645317 A CN 108645317A
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- sliding block
- high school
- cylinder device
- school mathematics
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
Abstract
The invention discloses a kind of high school mathematics cylinder device for measuring circumference,Including mounting disc,The side of the mounting disc is equipped with connecting plate,It is vertically arranged there are four the connecting plate is set and between adjacent two,The connecting plate is internally provided with sliding slot,Sliding block is slidably connected in the sliding slot,The side of the connecting plate, which corresponds to, is equipped with adjustment hole at the position of sliding block,It is rotatably connected to adjusting rod in the adjustment hole,The surface of the connecting plate is equipped with graduation mark,Sliding block side above the connecting plate is equipped with pointer,The cell wall of the sliding slot is equipped with card slot,The sliding block, which corresponds to, is equipped with card at the position of card slot,This high school mathematics cylinder device for measuring circumference,It is adjusted by the position to adjusting rod,To change the position of sliding block,So that the side for being against cylinder of sliding block tightly,By being read to graduation mark high scale,To be measured to the diameter of cylinder,Then the diameter of circumference is calculated by π d.
Description
Technical field
The present invention relates to teaching equipment technology field, specially a kind of high school mathematics cylinder device for measuring circumference.
Background technology
Circumference is a number scientific name word, is referred in the plane, a dynamic point centered on a fixed point, centainly a length of distance and
The track of movement one week, is called circumference, to be measured sometimes to circumference when carrying out the study of mathematics, application number
201620637775.4 disclosing a kind of measuring device more particularly to a kind of high school mathematics cylinder device for measuring circumference.This hair
Bright technical problems to be solved are to provide a kind of high school mathematics cylinder circumference easy to operate, measurement is accurate, measurement efficiency is high
Measuring device.In order to solve the above technical problem, the present invention provides such a high school mathematics cylinder device for measuring circumference,
Include hanging plate, shaft, disk, bearing block I, gear ring, motor I, gear, cylinder I, fixture block, motor II, bearing block II, bearing
Seat III, strut I, rolling paper web, lead screw, nut, air pump, cylinder II, cylinder III, glue stick, tracheae, suction nozzle, pinch roller I, the scraps of paper, branch
The center of bar II, mounting table and pinch roller II, hanging plate is provided with shaft, and disk, the center of circle of disk are provided on front side of hanging plate
It is provided with bearing block I, bearing block I and shaft cooperation, although can be measured to circumference, there is overall structures more
Complexity is not easy to be promoted the use of so that cost is higher.
Invention content
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of high school mathematics cylinder circumference measurement
Device, overall structure are relatively simple so that cost is relatively low, is convenient for promoting the use of, and can effectively solve in background technology
Problem.
To achieve the above object, the present invention provides the following technical solutions：A kind of high school mathematics cylinder device for measuring circumference,
Including mounting disc, the side of the mounting disc is equipped with connecting plate, the connecting plate set there are four and adjacent two between it is vertical
Setting, the connecting plate are internally provided with sliding slot, and sliding block is slidably connected in the sliding slot, and the side of the connecting plate, which corresponds to, to be slided
It is equipped with adjustment hole at the position of block, adjusting rod is rotatably connected in the adjustment hole, the surface of the connecting plate is equipped with graduation mark,
Sliding block side above the connecting plate is equipped with pointer.
As a preferred technical solution of the present invention, the cell wall of the sliding slot is equipped with card slot, and the sliding block corresponds to card
Card is equipped at the position of slot.
As a preferred technical solution of the present invention, the setting length of the adjusting rod is set more than or equal to the length of sliding slot
It sets, the adjusting rod top outside the connecting plate is equipped with handle, and the handle is set as cross-shaped configuration.
As a preferred technical solution of the present invention, the sliding block below the connecting plate is equipped with groove.
Compared with prior art, the beneficial effects of the invention are as follows：This high school mathematics cylinder device for measuring circumference, by right
The position of adjusting rod is adjusted, to change the position of sliding block so that the side for being against cylinder of sliding block tightly, by carving
Degree line high scale is read, and to be measured to the diameter of cylinder, is then calculated the diameter of circumference by π d.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the ends A of the present invention enlarged structure schematic diagram.
In figure：1 mounting disc, 2 connecting plates, 3 sliding slots, 4 sliding blocks, 5 adjustment holes, 6 adjusting rods, 7 graduation marks, 8 pointers, 9 card slots,
10 cards, 11 handles, 12 grooves.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of high school mathematics cylinder device for measuring circumference, packet
Include mounting disc 1, the side of mounting disc 1 is equipped with connecting plate 2, connecting plate 2 set there are four and adjacent two between be vertically arranged, even
Fishplate bar 2 is internally provided with sliding slot 3, slidably connects sliding block 4 in sliding slot 3, and the side of connecting plate 2 corresponds to be set at the position of sliding block 4
There is adjustment hole 5, adjusting rod 6 is rotatably connected in adjustment hole 5, the surface of connecting plate 2 is equipped with graduation mark 7, the cunning of 2 top of connecting plate
4 side of block is equipped with pointer 8, and the cell wall of sliding slot 3 is equipped with card slot 9, and sliding block 4, which corresponds to, is equipped with card 10 at the position of card slot 9, pass through
Clamping between card slot 9 and card 10, so that card 10 is not easy to fall inside sliding slot 3, the setting length of adjusting rod 6 is big
In the length setting equal to sliding slot 3, continues you convenient for the position to 3 inside sliding block 4 of sliding slot and adjust, the adjusting outside connecting plate 2
6 top of bar is equipped with handle 11, and handle 11 is set as cross-shaped configuration, is rotated to adjusting rod 6 convenient for user, connecting plate 2
The sliding block 4 of lower section be equipped with groove 12, rope is passed through from groove 12, is then wound with one circuit, by the length to rope into
Row measures, to be measured to the length of circumference.
When in use：Mounting disc 1 is placed on the surface of connecting plate 2, by the way that adjusting rod 6 is adjusted so that sliding block 4 is tight
The tight side for being against cylinder, by being read out to the scale pointed by the pointer 8 on corresponding connecting plate, then two
A scale is subtracted each other, to obtain the diameter of cylinder, according to L=π d, to calculate circumference, rope from groove
In pass through, then wind with one circuit, measured by the length to rope, to being measured to the length of circumference, into
Row verification.
The present invention is poor by the scale of the graduation mark 7 of two opposite pointer meanings, to be surveyed to the diameter of circumference
Amount, is calculated by formula, it will be able to show that the perimeter of cylinder, operation are relatively simple so that user can be more fast
The perimeter to cylinder of speed measures.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of high school mathematics cylinder device for measuring circumference, including mounting disc（1）, it is characterised in that：The mounting disc（1）'s
Side is equipped with connecting plate（2）, the connecting plate（2）It is vertically arranged there are four and if between adjacent two, the connecting plate（2）
Be internally provided with sliding slot（3）, the sliding slot（3）Inside slidably connect sliding block（4）, the connecting plate（2）Side correspond to sliding block
（4）Position at be equipped with adjustment hole（5）, the adjustment hole（5）Inside it is rotatably connected to adjusting rod（6）, the connecting plate（2）Table
Face is equipped with graduation mark（7）, the connecting plate（2）The sliding block of top（4）Side is equipped with pointer（8）.
2. a kind of high school mathematics cylinder device for measuring circumference according to claim 1, it is characterised in that：The sliding slot
（3）Cell wall be equipped with card slot（9）, the sliding block（4）Corresponding card slot（9）Position at be equipped with card（10）.
3. a kind of high school mathematics cylinder device for measuring circumference according to claim 1, it is characterised in that：The adjusting rod
（6）Setting length be more than or equal to sliding slot（3）Length setting, the connecting plate（2）External adjusting rod（6）Top is equipped with handle
Hand（11）, the handle（11）It is set as cross-shaped configuration.
4. a kind of high school mathematics cylinder device for measuring circumference according to claim 1, it is characterised in that：The connecting plate
（2）The sliding block of lower section（4）It is equipped with groove（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412605.XA CN108645317A (en) | 2018-05-03 | 2018-05-03 | A kind of high school mathematics cylinder device for measuring circumference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412605.XA CN108645317A (en) | 2018-05-03 | 2018-05-03 | A kind of high school mathematics cylinder device for measuring circumference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108645317A true CN108645317A (en) | 2018-10-12 |
Family
ID=63749116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810412605.XA Pending CN108645317A (en) | 2018-05-03 | 2018-05-03 | A kind of high school mathematics cylinder device for measuring circumference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108645317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397483A (en) * | 2020-04-20 | 2020-07-10 | 江西鑫尔利电力科技有限公司 | Special tool for measuring diameter of iron core column |
| CN111521094A (en) * | 2020-05-05 | 2020-08-11 | 江西铭源电气有限公司 | Tool and method for measuring diameter of iron core column |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876211U (en) * | 2010-11-17 | 2011-06-22 | 中冶陕压重工设备有限公司 | Cross rule for detecting size of large cylindrical forging |
| CN202648589U (en) * | 2012-04-25 | 2013-01-02 | 池州市永恒机械制造有限公司 | Plastic product diameter and circular degree detection device |
| CN203364717U (en) * | 2013-05-30 | 2013-12-25 | 中国二十冶集团有限公司 | Ruler for measuring pile diameter and central point of pile position |
| CN103743329A (en) * | 2013-12-11 | 2014-04-23 | 淄博航康商贸有限公司 | Glass mould bottom flatness measuring device |
| CN203964794U (en) * | 2014-06-16 | 2014-11-26 | 中国核工业华兴建设有限公司 | A kind of nuclear power station penetration piece is installed location Cross ruler |
| CN205957866U (en) * | 2016-08-25 | 2017-02-15 | 厦门市工程检测中心有限公司 | Simple and easy cement mortar fluidity dipperstick |
-
2018
- 2018-05-03 CN CN201810412605.XA patent/CN108645317A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876211U (en) * | 2010-11-17 | 2011-06-22 | 中冶陕压重工设备有限公司 | Cross rule for detecting size of large cylindrical forging |
| CN202648589U (en) * | 2012-04-25 | 2013-01-02 | 池州市永恒机械制造有限公司 | Plastic product diameter and circular degree detection device |
| CN203364717U (en) * | 2013-05-30 | 2013-12-25 | 中国二十冶集团有限公司 | Ruler for measuring pile diameter and central point of pile position |
| CN103743329A (en) * | 2013-12-11 | 2014-04-23 | 淄博航康商贸有限公司 | Glass mould bottom flatness measuring device |
| CN203964794U (en) * | 2014-06-16 | 2014-11-26 | 中国核工业华兴建设有限公司 | A kind of nuclear power station penetration piece is installed location Cross ruler |
| CN205957866U (en) * | 2016-08-25 | 2017-02-15 | 厦门市工程检测中心有限公司 | Simple and easy cement mortar fluidity dipperstick |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397483A (en) * | 2020-04-20 | 2020-07-10 | 江西鑫尔利电力科技有限公司 | Special tool for measuring diameter of iron core column |
| CN111521094A (en) * | 2020-05-05 | 2020-08-11 | 江西铭源电气有限公司 | Tool and method for measuring diameter of iron core column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181012 |
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| RJ01 | Rejection of invention patent application after publication |