CN204936610U - A kind of fixed track multipurpose educational demonstration ruler - Google Patents
A kind of fixed track multipurpose educational demonstration ruler Download PDFInfo
- Publication number
- CN204936610U CN204936610U CN201520699105.0U CN201520699105U CN204936610U CN 204936610 U CN204936610 U CN 204936610U CN 201520699105 U CN201520699105 U CN 201520699105U CN 204936610 U CN204936610 U CN 204936610U
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- plate
- ring
- ring plate
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- axle sleeve
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Abstract
The utility model discloses a kind of fixed track multipurpose educational demonstration ruler, comprise lower ring plate, upper ring plate, central axle sleeve, connection gusset, fixed axis, limiting plate, hand holding handle, rotation annular groove, rotate ring flat-plate, limited ring dais, guiding side's plate, flexible chute, positive stop, expansion plate, agree with block, gathering sill.The structural principle of the utility model device is simple, by the combination of fixed point rotary plate and telescopic straight-line guidance plate, the functional ruler of circle and straight line is combined, also operates the drafting carrying out curve by both simultaneously, the angle index be provided with can graphing accurately, intuitively easy to use.
Description
Technical field
The utility model relates to a kind of fixed track multipurpose educational demonstration ruler, is the teaching demonstration ruler that one kind of multiple functional rulers combine specifically.
Background technology
In the teaching process of Junior Mathematics, owing to just starting contact plane geometry, frequent graphing on wallboard is needed in teaching process, and geometric figure is generally all made up of circle and line, so large-scale compasses for teaching has become indispensable teaching tool with set square, but because the different functions of instrument cause quantity more, carry and use very inconvenient.
Utility model content
The purpose of this utility model is the deficiency existed for prior art, provides a kind of fixed track multipurpose educational demonstration ruler.
To achieve the above object, the method that the utility model adopts is: a kind of fixed track multipurpose educational demonstration ruler, comprises lower ring plate, upper ring plate, central axle sleeve, connection gusset, fixed axis, limiting plate, hand holding handle, rotation annular groove, rotates ring flat-plate, limited ring dais, guiding side's plate, flexible chute, positive stop, expansion plate, agrees with block, gathering sill, described lower ring plate is positioned at immediately below upper ring plate, upper and lower opposing end surface is parallel, one end of described connection gusset is fixedly connected with the outer ring cylinder of central axle sleeve, the other end is fixedly connected with the inner ring surface of lower ring plate and upper ring plate respectively, described fixed axis contacts with the inner hole of central axle sleeve, its length is consistent with the length of central axle sleeve, the two ends end face of fixed axis is fixedly connected with the end face center of limiting plate respectively, the intermediate connecting rod of described hand holding handle is fixedly connected with the upper surface of upper end limiting plate, described rotation annular groove lays respectively on the upper surface of lower ring plate and the lower surface of upper ring plate, described rotation ring flat-plate is between upper ring plate and lower ring plate, be enclosed within central axle sleeve by centre bore, upper and lower end face contacts with the opposing end surface of upper ring plate and lower ring plate, described limited ring dais is separately fixed at the upper and lower end face rotating ring flat-plate, agree with rotation annular groove and be rotatably connected, the left end of described guiding side's plate is fixedly connected with the outer ring cylinder rotating ring flat-plate, upper and lower end face is parallel with the end face of ring flat-plate, described flexible chute is positioned at the center, right side of guiding side's plate, the flexible outermost front/rear end of chute is provided with positive stop, the left end of described expansion plate inserts in flexible chute, relative sliding connects, the described block that agrees with is fixedly connected on expansion plate left end front/rear end, coordinate with positive stop and contact, described gathering sill is positioned at the centre position, upper surface of guiding side's plate and expansion plate.
As preferably, the upper end anchor ring of described upper ring plate is provided with the graduation mark indicating angle.
As preferably, the lower surface of described limiting plate is provided with the elasticity hemisphere convex surface of location.
Beneficial effect
The structural principle of the utility model device is simple, by the combination of fixed point rotary plate and telescopic straight-line guidance plate, the functional ruler of circle and straight line is combined, also operates the drafting carrying out curve by both simultaneously, the angle index be provided with can graphing accurately, intuitively easy to use.
Accompanying drawing explanation
Fig. 1 the utility model apparatus structure schematic diagram;
The structural representation of Fig. 2 the utility model device middle level whirligig;
Fig. 3 the utility model device upper ring plate plan structure schematic diagram;
Fig. 4 the utility model device lower ring plate structural representation;
Wherein, 1-lower ring plate, 2-upper ring plate, 3-central axle sleeve, 4-connects gusset, 5-fixed axis, 6-limiting plate, 7-hand holding handle, 8-rotates annular groove, 9-rotates ring flat-plate, 10-limited ring dais, the 11-side of guiding plate, 12-stretch chute, 13-positive stop, 14-expansion plate, 15-agree with block, 16-gathering sill.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, the present embodiment is implemented under premised on technical solutions of the utility model, should understand these embodiments and only be not used in restriction scope of the present utility model for illustration of the utility model.
A kind of fixed track multipurpose educational demonstration ruler as shown in Fig. 1 to Fig. 4, comprises lower ring plate 1, upper ring plate 2, central axle sleeve 3, connection gusset 4, fixed axis 5, limiting plate 6, hand holding handle 7, rotates annular groove 8, rotation ring flat-plate 9, limited ring dais 10, the side's of guiding plate 11, flexible chute 12, positive stop 13, expansion plate 14, agrees with block 15, gathering sill 16.
Lower ring plate 1 is positioned at immediately below upper ring plate 2, upper and lower opposing end surface is parallel, connect one end of gusset 4 to be fixedly connected with the outer ring cylinder of central axle sleeve 3, the other end is fixedly connected with the inner ring surface of lower ring plate 1 and upper ring plate 2 respectively, upper lower ring plate has connection gusset 4 to be connected with central axle sleeve 3 respectively, the highest upper surface that can not exceed lower ring plate 1 of two ends tie point of the connection gusset 4 be connected with lower ring plate 1, clear in order to indicate, the upper end anchor ring of upper ring plate 2 is provided with the graduation mark indicating angle.
Fixed axis 5 contacts with the inner hole of central axle sleeve 3, its length is consistent with the length of central axle sleeve 3, the two ends end face of fixed axis 5 is fixedly connected with the end face center of limiting plate 6 respectively, the lower surface of limiting plate 6 is provided with the elasticity hemisphere convex surface of location, mainly in order to ensure that central point can keep not rocking, prevent from affecting the accuracy of drawing, the intermediate connecting rod of hand holding handle 7 is fixedly connected with the upper surface of upper end limiting plate 6.
Rotating annular groove 8 lays respectively on the upper surface of lower ring plate 1 and the lower surface of upper ring plate 2, rotate ring flat-plate 9 between upper ring plate 2 and lower ring plate 1, be enclosed within central axle sleeve 3 by centre bore, upper and lower end face contacts with the opposing end surface of upper ring plate 2 and lower ring plate 1, limited ring dais 10 is separately fixed at and rotates the upper and lower end face of ring flat-plate 9, and rotates annular groove 8 and agree with and be rotatably connected.
The left end of the side's of guiding plate 11 is fixedly connected with the outer ring cylinder rotating ring flat-plate 9, upper and lower end face is parallel with the end face of ring flat-plate, flexible chute 12 is positioned at the center, right side of guiding side's plate 11, flexible chute 12 outermost left and right end face is provided with positive stop 13, the left end of expansion plate 14 inserts in flexible chute 12, relative sliding connects, agreeing with block 15 is fixedly connected on expansion plate 14 left end front/rear end, coordinate with positive stop 13 and contact, gathering sill 16 is positioned at the centre position, upper surface of guiding side's plate 11 and expansion plate 14.
When in use hand holding handle 7 is held, the lower surface of lower ring plate 1 is fixed on drawing wallboard, what drawing pen is fixed on gathering sill 16 needs position, rotation can draw circle, draw can draw straight line along gathering sill 16, both actions simultaneously, can according to the translational speed curve plotting on different directions.
Claims (3)
1. a fixed track multipurpose educational demonstration ruler, is characterized in that: comprise lower ring plate (1), upper ring plate (2), central axle sleeve (3), connection gusset (4), fixed axis (5), limiting plate (6), hand holding handle (7), rotate annular groove (8), rotation ring flat-plate (9), limited ring dais (10), the side's of guiding plate (11), flexible chute (12), positive stop (13), expansion plate (14), agree with block (15), gathering sill (16), described lower ring plate (1) is positioned at immediately below upper ring plate (2), upper and lower opposing end surface is parallel, one end of described connection gusset (4) is fixedly connected with the outer ring cylinder of central axle sleeve (3), the other end is fixedly connected with the inner ring surface of lower ring plate (1) and upper ring plate (2) respectively, described fixed axis (5) contacts with the inner hole of central axle sleeve (3), its length is consistent with the length of central axle sleeve (3), the two ends end face of fixed axis (5) is fixedly connected with the end face center of limiting plate (6) respectively, the intermediate connecting rod of described hand holding handle (7) is fixedly connected with the upper surface of upper end limiting plate (6), described rotation annular groove (8) lays respectively on the upper surface of lower ring plate (1) and the lower surface of upper ring plate (2), described rotation ring flat-plate (9) is positioned between upper ring plate (2) and lower ring plate (1), be enclosed within central axle sleeve (3) by centre bore, upper and lower end face contacts with the opposing end surface of upper ring plate (2) and lower ring plate (1), described limited ring dais (10) is separately fixed at the upper and lower end face rotating ring flat-plate (9), agree with rotation annular groove (8) and be rotatably connected, the left end of described guiding side's plate (11) is fixedly connected with the outer ring cylinder rotating ring flat-plate (9), upper and lower end face is parallel with the end face of ring flat-plate, described flexible chute (12) is positioned at the center, right side of guiding side's plate (11), flexible chute (12) outermost front/rear end is provided with positive stop (13), the left end of described expansion plate (14) inserts in flexible chute (12), the described block (15) that agrees with is fixedly connected on expansion plate (14) left end front/rear end, coordinate with positive stop (13) and contact, described gathering sill (16) is positioned at the centre position, upper surface of guiding side's plate (11) and expansion plate (14).
2. a kind of fixed track multipurpose educational demonstration ruler according to claim 1, is characterized in that: the upper end anchor ring of described upper ring plate (2) is provided with the graduation mark indicating angle.
3. a kind of fixed track multipurpose educational demonstration ruler according to claim 1, is characterized in that: the lower surface of described limiting plate (6) is provided with the elasticity hemisphere convex surface of location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520699105.0U CN204936610U (en) | 2015-09-10 | 2015-09-10 | A kind of fixed track multipurpose educational demonstration ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520699105.0U CN204936610U (en) | 2015-09-10 | 2015-09-10 | A kind of fixed track multipurpose educational demonstration ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204936610U true CN204936610U (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520699105.0U Expired - Fee Related CN204936610U (en) | 2015-09-10 | 2015-09-10 | A kind of fixed track multipurpose educational demonstration ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204936610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878080A (en) * | 2017-12-14 | 2018-04-06 | 王旭 | A kind of automation picture circular arc device easy to operation |
-
2015
- 2015-09-10 CN CN201520699105.0U patent/CN204936610U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878080A (en) * | 2017-12-14 | 2018-04-06 | 王旭 | A kind of automation picture circular arc device easy to operation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20160910 |