CN207758436U - A kind of new teaching multifunctional compass - Google Patents
A kind of new teaching multifunctional compass Download PDFInfo
- Publication number
- CN207758436U CN207758436U CN201721090709.0U CN201721090709U CN207758436U CN 207758436 U CN207758436 U CN 207758436U CN 201721090709 U CN201721090709 U CN 201721090709U CN 207758436 U CN207758436 U CN 207758436U
- Authority
- CN
- China
- Prior art keywords
- clamping cylinder
- ruler
- connection sheet
- circular plate
- support tube
- 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 is related to teaching aid technical fields, especially a kind of new teaching multifunctional compass, including circular plate, support tube, rotational sleeve, ruler, clamping cylinder, connection sheet, to focus lens, the inner cylinder end of the support tube is equipped with to focus lens, the lower end outside of support tube is equipped with trapezoidal circular plate, 4 suckers are uniformly provided on the bottom surface of circular plate, rotational sleeve is cased on support tube, the side of rotational sleeve is equipped with ruler, the connection sheet is equipped with sliding groove, sliding groove is sleeved on the clamping cylinder that connection sheet lower end on ruler is equipped with T shapes, clamping cylinder lower end is equipped with clamping piece, chalk is clamped in clamping cylinder.The structure design of the utility model is reasonable, can accurately draw the circle of required diameter or the circular arc of required angle as needed, can draw straight line by dragging connection sheet, and protractor is can be used as using the angle for measuring angle, function is more, easy to use, it is time saving and energy saving, it is worth of widely use.
Description
Technical field
The utility model is related to teaching aid technical field, especially a kind of new teaching multifunctional compass.
Background technology
In middle school geometry education activities, it is often necessary to use compasses blackboard upper drawing circle or draw certain angle circular arc,
There are many deficiencies when in use for existing compasses, draws bowlder and needs the sideband stitch branch by compasses on blackboard, rotational circle
Rule, the chalk being clamped by another side carry out picture circle, and picture bowlder hand, which cannot directly revolve compasses, to turn around, and needs ability after adjustment
Complete circle can be painted, needle point is easy to skid when adjusting hand, and since stitch is sharper, draws bowlder compasses band stitch and is easy
It is slided on blackboard, needs to pick up and draw circle after the center of circle is supported, be easy to cause deviation in this way, separately need to draw using compasses
When the circular arc of certain angle, need to coordinate protractor that could finish circular arc by required angle, operation is time-consuming and laborious, very not
Just.
Invention content
The purpose of this utility model is to overcome above-mentioned technical disadvantages to provide a kind of new teaching multifunctional compass, can
The circle of required diameter or the circular arc of required angle are accurately drawn as needed, straight line can be drawn by dragging connection sheet, and can make
It is angle of the protractor using measurement angle, function is more, easy to use.
The utility model solve the technical solution that uses of technical problem for：A kind of new teaching multifunctional compass, including
Circular plate, support tube, rotational sleeve, ruler, clamping cylinder, connection sheet, to focus lens, the inner cylinder end of the support tube is equipped with pair
The lower end outside of focus lens, support tube is equipped with trapezoidal circular plate, and 4 suckers, circular plate are uniformly provided on the bottom surface of circular plate
Pan Bianchu be equipped with angle line, rotational sleeve is cased on support tube, the side of rotational sleeve is equipped with ruler, the rotation on the downside of ruler
Sleeve is equipped with pointer, and ruler is equipped with graduation mark, and the connection sheet is equipped with sliding groove, and sliding groove is sleeved on ruler, slides
The connection sheet of slot side is equipped with fixing bolt, and connection sheet lower end is equipped with the clamping cylinder of T shapes, and clamping cylinder lower end is equipped with clamping piece,
It is cased with locking sleeve on clamping cylinder, is connected with spring on clamping cylinder between side shirt edge and locking sleeve, powder is clamped in clamping cylinder
Pen.Bowlder is drawn, fixing bolt is unclamped, slides clamping cylinder, adjusts chalk to the position of required diameter, be locked bolt, then will
Sucker suction is on blackboard, and then by 1 circle picture circle of ruler rotation, easy to use, drawing bowlder will not skid.
It is described that cross is equipped with to focal line to focus lens, cross correspond in circular plate to focal line equipped with zero degree line and 90
Spend line.Focal line can be directed at by the center of circle to focal line central point by cross and carried out when drawing the circular arc for determining angle equipped with cross
Arc operation is drawn, in addition can be by cross to the central point alignment angle vertex of focal line, cross is directed at angle to the horizontal line of focal line
A line, then read another a line and correspond to angle line in circular plate, it is easy to use, it is multiple functional.
Advantageous effect possessed by the utility model is：The structure design of the utility model is reasonable, can be accurate as needed
The circle of required diameter or the circular arc of required angle are drawn, straight line can be drawn by dragging connection sheet, and can be used as protractor usage amount
The angle of angle is taken, function is more, easy to use, time saving and energy saving, is worth of widely use.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the utility model.
Attached drawing 2 is the structural schematic diagram of the clamping cylinder of the utility model.
Attached drawing 3 is the structural schematic diagram of the ruler of the utility model.
Attached drawing 4 is the structural schematic diagram of the vertical view of the circular plate of the utility model.
Attached drawing 5 is the structural schematic diagram of the upward view of the circular plate of the utility model.
Specific implementation mode
1 ~ attached drawing 5 is described below the utility model below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 5, the utility model include circular plate 3, support tube 1, rotational sleeve 2, ruler 6, clamping cylinder 10,
Connection sheet 8, to focus lens 5, the inner cylinder end of the support tube 1 is equipped with to focus lens 5, and the lower end outside of support tube 1 is equipped with ladder
The circular plate 3 of shape, 4 suckers 4 are uniformly provided on the bottom surface of circular plate 3, and the Pan Bianchu of circular plate 3 is equipped with angle line 15, support
Rotational sleeve 2 is cased on cylinder 1, the side of rotational sleeve 2 is equipped with ruler 6, and the rotational sleeve 2 of 6 downside of ruler is equipped with pointer 7,
Ruler 6 is equipped with graduation mark 19, and the connection sheet 8 is equipped with sliding groove 9, and sliding groove 9 is sleeved on ruler 6,9 side of sliding groove
Connection sheet 8 is equipped with fixing bolt 20, and 8 lower end of connection sheet is equipped with the clamping cylinder 10 of T shapes, and 10 lower end of clamping cylinder is equipped with clamping piece
13, locking sleeve 11 is cased on clamping cylinder 10, is connected with spring 12 on clamping cylinder 10 between side shirt edge and locking sleeve 11, is clamped
It is clamped with chalk 14 in cylinder 10.Bowlder is drawn, sucker 4 can be adsorbed on blackboard, clamping cylinder 10 is then slided, chalk 14 is adjusted and arrives
The position of required diameter, then rotary ruler combination 6 carry out picture circle, easy to use, drawing bowlder will not skid, and it is accurate to draw circle
Standard.
It is described that cross is equipped with to focal line 18 to focus lens 5, cross correspond in circular plate 3 to focal line 18 equipped with zero degree line
16 and 90 degree of lines 17.It can be when drawing the circular arc for determining angle, by cross to 18 center of focal line to focal line 18 equipped with cross
The point alignment center of circle carries out picture arc operation, in addition can be by cross to the central point alignment angle vertex of focal line 18, and cross is to focal line
The a line of 18 horizontal line alignment angle, then reads another a line and corresponds to angle line 15 in circular plate 3, use letter
Folk prescription is just, multiple functional.
In use, sucker 4 is adsorbed on blackboard, cross is adjusted into clamping cylinder to the central point of focal line 18 as the center of circle
10 arrive the position of required diameter, lock connection sheet 8 by fixing bolt 20, then rotary motion sleeve 2, carry out picture circle or draw arc
；Connection sheet can be dragged by required length when drawing straight line, use the chalk setting-out in clamping cylinder；Measure angle
When, it can be by cross to the central point alignment angle vertex of focal line 18, cross is directed at the horizontal line of focal line 18 on one side of angle, so
The angle line 15 of the corresponding circular plate in angle another side 3 is read afterwards.
Claims (2)
1. a kind of new teaching multifunctional compass, including circular plate, support tube, rotational sleeve, ruler, clamping cylinder, connection sheet,
To focus lens, it is characterised in that：The inner cylinder end of the support tube is equipped with to focus lens, and the lower end outside of support tube is equipped with trapezoidal
Circular plate, 4 suckers are uniformly provided on the bottom surface of circular plate, the Pan Bianchu of circular plate is equipped with angle line, is cased on support tube
The side of rotational sleeve, rotational sleeve is equipped with ruler, and the rotational sleeve on the downside of ruler is equipped with pointer, and ruler is equipped with scale
Line, the connection sheet are equipped with sliding groove, and sliding groove is sleeved on ruler, and the connection sheet of sliding groove side is equipped with fixing bolt,
Connection sheet lower end is equipped with the clamping cylinder of T shapes, and clamping cylinder lower end is equipped with clamping piece, is cased with locking sleeve on clamping cylinder, on clamping cylinder
It is connected with spring between side shirt edge and locking sleeve, chalk is clamped in clamping cylinder.
2. a kind of new teaching multifunctional compass according to claim 1, it is characterised in that：It is described to being set on focus lens
There is cross to focal line, cross is corresponded in circular plate, zero degree line and 90 degree of lines are equipped with to focal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090709.0U CN207758436U (en) | 2017-08-29 | 2017-08-29 | A kind of new teaching multifunctional compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090709.0U CN207758436U (en) | 2017-08-29 | 2017-08-29 | A kind of new teaching multifunctional compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207758436U true CN207758436U (en) | 2018-08-24 |
Family
ID=63178582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721090709.0U Expired - Fee Related CN207758436U (en) | 2017-08-29 | 2017-08-29 | A kind of new teaching multifunctional compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207758436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481211A (en) * | 2019-09-25 | 2019-11-22 | 王旭 | A kind of mathematical education drawing tool |
-
2017
- 2017-08-29 CN CN201721090709.0U patent/CN207758436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481211A (en) * | 2019-09-25 | 2019-11-22 | 王旭 | A kind of mathematical education drawing tool |
| CN110481211B (en) * | 2019-09-25 | 2021-01-26 | 王旭 | Drawing tool for mathematical education |
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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: 20180824 Termination date: 20200829 |