CN204488307U - Vacuum type concentric circles drawing apparatus - Google Patents
Vacuum type concentric circles drawing apparatus Download PDFInfo
- Publication number
- CN204488307U CN204488307U CN201520201895.5U CN201520201895U CN204488307U CN 204488307 U CN204488307 U CN 204488307U CN 201520201895 U CN201520201895 U CN 201520201895U CN 204488307 U CN204488307 U CN 204488307U
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- China
- Prior art keywords
- column
- crossbeam
- hole
- slide block
- sucker
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Abstract
The utility model discloses vacuum type concentric circles drawing apparatus, belong to mathematics circular diagram drawing apparatus field, mainly solve and current mathematics classroom carries out concentrically ringed drafting complexity expend time in, drawing process is rough problem of drawing simultaneously, column is inner hollow cylinder shape structure, column bottom is provided with sucker, described sucker root is attached to column bottom by gluing, be through design bottom suction cup interior space and column internal holes, column revolving is provided with cannelure bottom face, crossbeam one end is provided with borehole structure, crossbeam is cross section is square bar structure, slide block is rectangular structure, slide block vertical direction side is provided with the through hole holding pen, opposite side is provided with horizontal square hole, square hole cross sectional shape is identical with section of beam shape with specification, slide block fore-and-aft direction is provided with screwed hole.The utility model is novel unique, can realize the fixing of whole device, effectively can avoid the movement in drawing course, avoid the round decentraction of drawing in use procedure by sucker structure.
Description
Technical field
The utility model relates to vacuum type concentric circles drawing apparatus, belongs to mathematics circular diagram drawing apparatus field.
Background technology
Compasses are the appliances often used in traditional mathematics teaching, at present main point two classes, and a class is individual for drawing round compasses, and such compasses compact is easy to use; The another kind of teaching class compasses being classroom instruction and using, such compasses are the enlarged version of upper class compasses, and object on classroom, is convenient to demonstration use compasses and draw circle skill.Current compasses for teaching mainly realizes the location on blackboard by the peg of roller end, and this kind of mode positioning difficulty is large, especially in picture circle process, slip very easily occurs and picture is justified unsuccessfully.For the defect existing for compasses for teaching, there is sucker type compass, the type compasses have changed traditional metal needle into sucker suction, improve the locating effect of rotating shaft, the absorption affinity but depending merely on sucker is difficult to compasses well to be fixed usually, add that the usual adhering powder foreign material in blackboard surface often weaken the adsorption effect of sucker, cause and adsorb unsuccessfully.
Current mathematics classroom being carried out concentrically ringed drawing process adopts single pin compasses repeatedly to draw usually, the method drawing process complexity expends time in, stitch easily slides and causes the concentric circles generation bias effect of drafting to draw effect simultaneously, in addition the method cannot grasp the radius of a circle of drafting, and drawing process is rough drafting.
Utility model content
The utility model adopts single pin compasses repeatedly to draw for current mathematics classroom being carried out concentrically ringed drawing process usually, the method drawing process complexity expends time in, stitch easily slides and causes the concentric circles generation bias effect of drafting to draw effect simultaneously, in addition the method cannot grasp the radius of a circle of drafting, drawing process is rough problem of drawing, and devises vacuum type concentric circles drawing apparatus.
The technical scheme in the invention for solving the technical problem is:
This vacuum type concentric circles drawing apparatus, its structure comprises: piston, column, sucker, adjustment bolt, slide block, pen, crossbeam, column is inner hollow cylinder shape structure, column top is provided with through hole, described through-hole aperture is less than column internal holes aperture, column internal holes bottom is through-hole structure, column bottom is provided with sucker, described sucker root is attached to column bottom by gluing, be through design bottom suction cup interior space and column internal holes, described piston be piston rod end be connected piston body form, column revolving is provided with cannelure bottom face, crossbeam one end is provided with borehole structure, crossbeam is cross section is square bar structure, slide block is rectangular structure, slide block vertical direction side is provided with the through hole holding pen, opposite side is provided with horizontal square hole, described square hole cross sectional shape is identical with section of beam shape with specification, slide block fore-and-aft direction is provided with screwed hole.
The described through hole on column top coordinates with the piston rod of piston, and the through-hole aperture on column top is equal with the external diameter of the piston rod of piston.
Described crossbeam end face is provided with scale along its length, and described scale is that the moon is engraved in beam surface upper.
The groove width of the cannelure bottom described column revolving face is identical with beam thickness, and bottom land external diameter is equal with the borehole structure aperture of crossbeam one end.
The screwed hole of described slide block fore-and-aft direction is divided into two sections, front and back, near one section of screwed hole in beam engagement hole through to beam engagement hole, the through through hole holding pen to slide block vertical direction of opposite side screwed hole.
Compared with prior art, the beneficial effects of the utility model are:
1. the utility model is novel unique, can realize the fixing of whole device, effectively can avoid the movement in drawing course, avoid the round decentraction of drawing in use procedure by sucker structure.
2. the utility model realizes the installation of branched pen by slide block structure, realizes location simultaneously, ensure that the stability of the device in drawing course by adjustment bolt, and the scale on crossbeam can conveniently be determined to draw radius of circle, improves the precision of drawing.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure figure.
Fig. 2 is the utility model top view.
Fig. 3 is the utility model column sectional view.
Fig. 4 is the utility model slide block sectional view.
In figure: 1 piston, 2 columns, 3 suckers, 4 adjustment bolts, 5 slide blocks, 6,7 crossbeams.
Detailed description of the invention
As shown in Figure 1,2,3, 4: vacuum type concentric circles drawing apparatus, its structure comprises: piston 1, column 2, sucker 3, adjustment bolt 4, slide block 5, pen 6, crossbeam 7, column 2 is inner hollow cylinder shape structure, column 2 top is provided with through hole, described through-hole aperture is less than column 2 internal holes aperture, column 2 internal holes bottom is through-hole structure, sucker 3 is provided with bottom column 2, described sucker 3 root is attached to bottom column 2 by gluing, be through design bottom sucker 3 internal voids and column 2 internal holes, described piston 1 for piston rod end be connected piston body form, cannelure is provided with bottom column 2 surface of revolution, crossbeam 7 one end is provided with borehole structure, crossbeam 7 for cross section be square bar structure, slide block 5 is rectangular structure, slide block 5 vertical direction side is provided with the through hole holding pen 6, opposite side is provided with horizontal square hole, described square hole cross sectional shape is identical with crossbeam 7 cross sectional shape with specification, slide block 5 fore-and-aft direction is provided with screwed hole, the through hole on described column 2 top coordinates with the piston rod of piston 1, and the through-hole aperture on column 2 top is equal with the external diameter of the piston rod of piston 1, described crossbeam 7 end face is provided with scale along its length, and described scale is that the moon is engraved in crossbeam 7 upper surface, the groove width of the cannelure bottom described column 2 surface of revolution is identical with crossbeam 7 thickness, and bottom land external diameter is equal with the borehole structure aperture of crossbeam 7 one end, the screwed hole of described slide block 5 fore-and-aft direction is divided into two sections, front and back, near one section of screwed hole of crossbeam 7 mating holes through to crossbeam 7 mating holes, the through through hole holding pen 6 to slide block 5 vertical direction of opposite side screwed hole.
Vacuum type concentric circles drawing apparatus described by the present embodiment, during use, the sucker 3 of column 2 end is placed with desired location after to pull piston 1 to be realized by whole device by sucker 3 fixing, then pen 6 is arranged in the installing hole of slide block 5 correspondence, rotate adjustment bolt 4 and realize the fixing of pen, then moving slider 5 determines required size according to the scale at crossbeam 7 top, then rotation adjustment bolt 4 realizes the locking between slide block 5 and crossbeam 7, after according to said method being fixed successively by other slide blocks 5, swing bolster 7 end can once draw multiple concentric circles, the utility model is novel unique, the fixing of whole device can be realized by sucker 3 structure in use procedure, effectively can avoid the movement in drawing course, avoid the round decentraction of drawing, the installation of branched pen 6 is realized by slide block 5 structure, realize location by adjustment bolt 4 simultaneously, ensure that the stability of the device in drawing course, scale on crossbeam 7 can conveniently be determined to draw radius of circle, improve the precision of drawing.
The above, be only detailed description of the invention of the present utility model, and those of ordinary skill in the art are in the scope that the utility model discloses, and the change that can expect easily, within the protection domain that all should be encompassed in utility model.
Claims (5)
1. vacuum type concentric circles drawing apparatus, its structure comprises: piston (1), column (2), sucker (3), adjustment bolt (4), slide block (5), pen (6), crossbeam (7), it is characterized in that: column (2) is inner hollow cylinder shape structure, column (2) top is provided with through hole, described through-hole aperture is less than column (2) internal holes aperture, column (2) internal holes bottom is through-hole structure, column (2) bottom is provided with sucker (3), described sucker (3) root is attached to column (2) bottom by gluing, be through design bottom sucker (3) internal voids and column (2) internal holes, described piston (1) for piston rod end be connected piston body form, cannelure is provided with bottom column (2) surface of revolution, crossbeam (7) one end is provided with borehole structure, crossbeam (7) for cross section be square bar structure, slide block (5) is rectangular structure, slide block (5) vertical direction side is provided with the through hole holding pen (6), opposite side is provided with horizontal square hole, described square hole cross sectional shape is identical with crossbeam (7) cross sectional shape with specification, slide block (5) fore-and-aft direction is provided with screwed hole.
2. vacuum type concentric circles drawing apparatus according to claim 1, is characterized in that: the through hole on column (2) top coordinates with the piston rod of piston (1), and the through-hole aperture on column (2) top is equal with the external diameter of the piston rod of piston (1).
3. vacuum type concentric circles drawing apparatus according to claim 1, is characterized in that: crossbeam (7) end face is provided with scale along its length, and described scale is that the moon is engraved in crossbeam (7) upper surface.
4. vacuum type concentric circles drawing apparatus according to claim 1, is characterized in that: the groove width of the cannelure bottom column (2) surface of revolution is identical with crossbeam (7) thickness, and bottom land external diameter is equal with the borehole structure aperture of crossbeam (7) one end.
5. vacuum type concentric circles drawing apparatus according to claim 1, it is characterized in that: the screwed hole of slide block (5) fore-and-aft direction is divided into two sections, front and back, near one section of screwed hole of crossbeam (7) mating holes through to crossbeam (7) mating holes, the through through hole holding pen (6) to slide block (5) vertical direction of opposite side screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201895.5U CN204488307U (en) | 2015-04-05 | 2015-04-05 | Vacuum type concentric circles drawing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201895.5U CN204488307U (en) | 2015-04-05 | 2015-04-05 | Vacuum type concentric circles drawing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204488307U true CN204488307U (en) | 2015-07-22 |
Family
ID=53567597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520201895.5U Expired - Fee Related CN204488307U (en) | 2015-04-05 | 2015-04-05 | Vacuum type concentric circles drawing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204488307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650443A (en) * | 2021-08-30 | 2021-11-16 | 重庆第二师范学院 | Teaching drawing auxiliary device for drawing spiral line |
-
2015
- 2015-04-05 CN CN201520201895.5U patent/CN204488307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650443A (en) * | 2021-08-30 | 2021-11-16 | 重庆第二师范学院 | Teaching drawing auxiliary device for drawing spiral line |
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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: 20150722 Termination date: 20160405 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |