CN2072256U - Implement box for studying solid geometry - Google Patents
Implement box for studying solid geometry Download PDFInfo
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- CN2072256U CN2072256U CN 89216000 CN89216000U CN2072256U CN 2072256 U CN2072256 U CN 2072256U CN 89216000 CN89216000 CN 89216000 CN 89216000 U CN89216000 U CN 89216000U CN 2072256 U CN2072256 U CN 2072256U
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- base plate
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Abstract
The utility model relates to an implement box for studying solid geometry which is characterized in that the implement box for studying solid geometry is formed by the combination of components which can be used for combining a prism, a desk, a column, a cone, a desk model on the bottom board of a box cover, a connecting bar, a spherical model, a dihedral model, a drawing board, a protractor, etc. The utility model provides middle school students a drawing implement for drawing all geometric body models, dihedral models and the solid geometry which are desired by the basic requirements of middle school teaching programs. The volume of the implement box for studying solid geometry is 16 cm * 8 cm * 2 cm.
Description
The utility model is a kind of solid geometry study instrument cases, and solid geometric pattern and solid geometry drawing instrument are provided.
The geometric model of using for the student of Shanghai Teaching Instrument Company is to be welded with steel wire before the utility model, and volume is big, carries inconvenience.Student oneself is welded into model with plasticine, spillikin or with thin galvanized wire.Except that having the problems referred to above, also should not make and not attractive in appearance.
A lot of in the example life at two angles that the plane becomes, as the pencil box of opening, the book that opens, but when producing model with these things, at least to take a hand, certain difficulty just be arranged as wanting further tectonic model or solving a problem by model, and the dihedral angle model of not using for the student on the market.
The purpose of this utility model, be student one cover syllabus basic demand defined will be provided can adorn, tear open geometric mould easily, reach dihedral angle model and solid geometry drawing instrument.These objects totally be that volume is little, and is easy to carry and use in the part of box or the box of packing into.
Solution of the present utility model is: with the prismatic member of representing prismatic upper bottom surface, the base plate of the terrace with edge member of expression terrace with edge upper base and expression prism, awl, platform bottom surface is formed prism, pyramid, terrace with edge model with the aperture that pitman inserts on member and the base plate on base plate.
With the cylindrical member of representing cylindrical side, circular cone (platform) member of expression circular cone (platform) side surrounds the circular groove on cylindrical side and circular cone (platform) the side insertion associated floor and is combined into cylinder, circular cone (platform) model with the hasp on the member.Above-described base plate is a face of lid.
Cylindrical member is again the solid geometry plotting sheet, and circular cone (platform) member is again a protractor.
Make the model of balling-up with the blowing ball, or form the model of ball with spherical crown, spherical zone, segment, billiard table splicing.
On a plane of box, connect another plane with hinge or latch with thin slice or frame representation, a back plane can be stirred around the box face, and fixes two plane relative positions and form the dihedral angle model by index dial, latch or support bar.
More than all objects or the part of box maybe can pack in the box.
The utility model notices that the spacial reason of solid (except that ball) is that solid has height, incline, the side that produces height become dismountable part and keep the globality of bottom surface, be used in the method representation bottom surface of drawing or open circular groove on the base plate simultaneously, so just make the member of the detachable geometric mould of this cover few, easy to assembly, Stability Analysis of Structures.
Base plate is a face of lid, the dihedral angle model produces on box, spherical model is combined into the blowing ball or with spherical crown, spherical zone, segment, billiard table, cylindrical member is plotting sheet, circular cone (platform) member not only but also be angulation, all objects or the part of box or put into box, reduced cost like this, reduced volume, provide a cover complete solid geometry study instrument to the student.
Describe structure and the using method of embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the vertical view of base plate.
Fig. 2 is prismatic, pyramid illustraton of model.
Fig. 3 is the conical member sectional view.
Fig. 4 is the terrace with edge illustraton of model.
Fig. 5 is cylinder, circular cone (platform) illustraton of model.
Fig. 6 is cylindrical member (plotting sheet) figure.
Fig. 7 is circular cone (platform) member (protractor) figure.
Fig. 8 is splicing ball shaft section figure.
Fig. 9 is the dihedral angle illustraton of model.
Referring to Fig. 1, Fig. 2, present embodiment can be combined into positive three, four, six prism and squares on the base plate left side.Be painted with the regular polygon of positive three, four, six prisms of expression and square bottom surface on the base plate of the left side.These regular polygons have public circumscribed circle, and circumradius is that 3.35CM has the aperture (1) perpendicular to base plate on the top of regular polygon.The prismatic member (2) of representing prismatic upper bottom surface is that surround with spillikin and polygon bottom surface regular polygon congruence.Aperture (3) perpendicular to the regular polygon plane is arranged on the top of these regular polygons, and the pitman (4) of expression incline inserts the aperture (1) on the base plate of member aperture (3) and correspondence, can form positive three, four, six prism and squares respectively.
Referring to Fig. 1, Fig. 2, present embodiment can be combined on the right of base plate positive three, four, hexagonal pyramid.The right is painted with that expression is positive three, four, the polygon of hexagonal pyramid bottom surface on the base plate.These regular polygons have public circumscribed circle, and circumradius is 3.35CM.Regular polygon the summit aperture (5) is arranged, the aperture hole heart axes all becomes 60 ° of angles with the connecting line in the base plate plane and the Kong Xinyu center of circle.In these apertures (5), plug the pitman (7) of expression incline, form orthopyramid, at base plate equilateral triangle, square, orthohexagonal one side mid point aperture (8), (9), (10) are arranged respectively, its hole heart axes all points to the vertex of a cone, in these apertures (8), (9), (10), plug the slant height of corresponding pitman (11) expression pyramid, the aperture (6) that vertical base plate is arranged at the center of base plate regular polygon is plugged the height that corresponding pitman (12) is represented pyramid.
Referring to Fig. 3, can not meet at the vertex of a cone as the other end of pitman, then can use the pyramid member.It is to add a circular cone side in high pitman (12) upper end of expression pyramid, is umbrella, and the expression vertex of a cone and awl are high.Its bus becomes 30 ° of angles with former pitman, long 8MM inserts base plate aperture (6) with this member, the other end of pitman (7) (11) is inserted in the vertex of a cone gets final product.
Referring to Fig. 1, Fig. 4, present embodiment can be combined into positive three on the right of base plate, four, six terrace with edges, the bottom surface of terrace with edge promptly is the bottom surface of pyramid, the member (13) of expression terrace with edge upper bottom surface is thick positive three of the 2mm that is, four, hexagon, on be painted with the expression rib line, its circumradius is 1.45mm, polygon top aperture (14), mid point on one side have aperture (15) regular polygon center have aperture (16) respectively with base plate on respective apertures (5), (8), (6) direction unanimity, insert with the pitman of representing incline (17) that member top aperture (14) and base plate respective apertures (5) are capable of being combined to become terrace with edge, insert respective apertures (8) on member one side mid point aperture (15) and the base plate with the pitman of representing slant height (18), the slant height of expression terrace with edge, with bottom surface regular polygon central small hole (16) in corresponding pitman (19) insertion, (6), the height of expression terrace with edge.
The pitman diameter is 1mm, degree of tightness appropriateness when the slightly larger in diameter of aperture makes pitman insert aperture in pitman diameter 0.05～0.1mm, the long 70mm pitman six roots of sensation, this six roots of sensation pitman is used for representing the incline of prism, pyramid, and the pitman six roots of sensation of long 40mm is used to represent the incline of terrace with edge, four of long 50mm pitmans, be used to represent the rib of square, one of long 63.5mm pitman is used to represent the slant height of pyramid.
The lines of positive three, four, six prisms of expression, awl, platform bottom surface rib in the present embodiment, the lines of expression terrace with edge upper bottom surface rib and prismatic member are respectively with three kinds of colors that are different from base plate, to show difference.
Referring to Fig. 1, Fig. 5, it is the cylindrical circular groove (20) of 2.4cm that one radius is arranged on the base plate left side, the cylindrical member (21) of expression cylindrical side, there is velcro (22) on its both sides, two ends velcro (22) is buckled the formation cylindrical side, insert in the base plate circular groove (20), form cylinder model, row can be become as the cylinder top, then a circular boop can be added up again.
Referring to Fig. 6, cylindrical member is painted with the solid geometry planimetric map on (21), locates to be equipped with small sircle hole (23) at intersection point of this each rib of planimetric map etc., and the user is by small sircle hole described point, line on paper, draw the solid geometry planimetric map, so cylindrical member (21) is a plotting sheet again.Cylindrical member (plotting sheet), long 15.5cm, wide 6.4cm.
Referring to Fig. 1, Fig. 5.
It is the truncated cone-shaped circular groove (24) of 2.4cm that one upper bottom surface radius is arranged on the left side of base plate, its bus becomes 60 ° of angles with base plate, circular cone (platform) member (25) of expression circular cone (platform) side, shape such as semicircle, velcro (26) is arranged at the two radius place, the circular arc of circular cone (platform) member (25) is inserted in the circular groove (24) of base plate, buckle the velcro (26) on circular cone (platform) member (25) both sides, form conical model, on circular cone (platform) member (25), be decorated with concentric arc line, when forming conical model, this camber line forms the cross section that is parallel to the bottom surface, thereby produces the round platform model in conical model.Above-mentioned cylinder, circular cone (platform) member (21), (25) all are flexiblely to have the material of certain intensity to make again with transparent, the width of the circular groove on the base plate should be than the thickness of above-mentioned two members big 0.2～0.5mm.
Referring to Fig. 8, be painted with angle and angle number on circular cone (platform) member (25), can work as protractor and use.
Referring to Fig. 1, the base plate of present embodiment is the lid reverse side, and base plate is of a size of 16 * 8 * 2cm
3, the vertical depth of aperture on the base plate (1), (5), (6), (8), (9), (10) and circular groove (20), (24) is 5mm, and lid is connected with the box body by bayonet socket (27), and lid and box body are separable.
In the present embodiment, be painted with warp and weft on the blowing sphere and write angle exactly, big half disc is arranged in the ball, the two ends of its diameter are in south poles, on be painted with angle, with the definition of explanation latitude, whole spherical model is with earth warp and weft model, the diameter of ball is 10cm.
Referring to Fig. 8, the also available spherical crown of the spherical model of present embodiment (28), ball (29), segment (30), billiard table (31) are spliced, and can put surely for making ball, and ball can be placed on the circular base (32).The diameter of ball is 4.6cm, and wall thickness is 1.0mm.
Referring to Fig. 1 Fig. 9, present embodiment has the dihedral angle model in the lid front, one " door " font steel wire plane frame (33) is arranged on the box face, have at the nearly two ends of frame two latches (34) link to each other with the box face this plane frame (33) with latch (34) serve as the axle can be around planar inverted, position by index dial (35) fixed pan frame, make plane frame and box face can form 30 °, 45 °, 60 °, 90 °, 120 °, 135 °, 150 ° dihedral angle, the thick 2mm of index dial, the dark 1mm of scale groove (36), four jiaos of protrusions of box face (37) can play fixation when the plane frame is packed up.
All objects of present embodiment or constitute box or be placed on and form solid geometry study instrument cases in the box.
Present embodiment is equipped with some and one plasticine of spillikin of long 100mm again, and the user if can use this instrument cases flexibly, will produce more solid geometric pattern.
Prismatic pitman and the dihedral angle door shape frame with pyramid except that expression of present embodiment all can be made of plastic making with steel wire.
Claims (11)
1, a kind of solid geometry study instrument cases is characterized in that instrument cases by the prism that can form solid on base plate, terrace with edge, cylinder, circular cone (platform) member and pitman, spherical model, and the dihedral angle model, plotting sheet, protractor, box is formed by combining.
2, instrument cases according to claim 1, it is characterized in that forming the polygon that is painted with the prismatic bottom surface of expression on the base plate of prismatic model, hole heart axes aperture parallel to each other is arranged on the polygon top, the prismatic member of representing prismatic upper bottom surface is the polygon with base plate polygon congruence, have on the polygon top hole heart axes parallel to each other and with the consistent aperture of base plate aperture direction, insert corresponding aperture on base plate and the member with isometric pitman, on base plate, form prismatic model.
3, instrument cases according to claim 1, it is characterized in that forming the polygon that is painted with expression pyramid bottom surface on the base plate of pyramid model, on the polygon top and other relevant position have hole heart axes to meet at the aperture of base plate superjacent air space same point, insert corresponding spillikin in the aperture and on base plate, be combined into the pyramid model.
4, instrument cases according to claim 1, it is characterized in that forming the polygon that is painted with expression terrace with edge bottom surface on the base plate of terrace with edge model, on the polygon top and other relevant position have hole heart axes to meet at the aperture of base plate superjacent air space same point, the terrace with edge member of expression terrace with edge upper bottom surface is similar to polygon on the base plate and less than the polygonal member of base plate, the identical aperture of hole heart axes direction that corresponding aperture on hole heart axes direction and the base plate is arranged about the position at polygon top and other, insert corresponding aperture on base plate and the member with corresponding pitman, on base plate, form the terrace with edge model.
5, instrument cases according to claim 1, it is characterized in that forming on the base plate of cylinder model the column type circular groove of bus perpendicular to base plate arranged, there is the connection hasp on both sides at the rectangle cylindrical member of representing cylindrical side, with hasp member is surrounded cylindrical side, be combined into cylinder model in the circular groove of insertion base plate.
6, instrument cases according to claim 5 is characterized in that cylindrical member is again the solid geometry plotting sheet.
7, instrument cases according to claim 1, it is characterized in that forming on the base plate of circular cone (platform) model has bus to become the circular platform type circular groove that meets at the base plate superjacent air space of isogonism with base plate, circular cone (platform) fan-shaped component of expression circular cone (platform) side, there is hasp at the place in fan-shaped two radius, member is inserted in the base plate circular groove along camber line, buckle hasp, on base plate, be combined into conical model, on the fan-shaped component face, be painted with and fan-shaped concentric camber line, this camber line forms the plane that is parallel to base plate when forming conical model, generates the round platform model in conical model.
8, instrument cases according to claim 7 is characterized in that circular cone (platform) member is again a protractor.
9,, it is characterized in that base plate is the lid face according to claim 2,3,4,5,7 described instrument cases.
10, instrument cases according to claim 1 is characterized in that spherical model makes with the blowing ball, or are formed by connecting with spherical crown, spherical zone, segment, billiard table.
11, instrument cases according to claim 1 is characterized in that the dihedral angle model produces different angles by the relative box face of energy and fixing plane and box plane combines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216000 CN2072256U (en) | 1989-08-10 | 1989-08-10 | Implement box for studying solid geometry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216000 CN2072256U (en) | 1989-08-10 | 1989-08-10 | Implement box for studying solid geometry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2072256U true CN2072256U (en) | 1991-02-27 |
Family
ID=4871485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89216000 Withdrawn CN2072256U (en) | 1989-08-10 | 1989-08-10 | Implement box for studying solid geometry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2072256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003503673A (en) * | 1999-07-02 | 2003-01-28 | ▲ほあ▼宏▲すん▼ | Multifunctional heat equipment |
| CN105160966A (en) * | 2015-10-12 | 2015-12-16 | 叶兆铭 | Geometry chessboard |
-
1989
- 1989-08-10 CN CN 89216000 patent/CN2072256U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003503673A (en) * | 1999-07-02 | 2003-01-28 | ▲ほあ▼宏▲すん▼ | Multifunctional heat equipment |
| CN105160966A (en) * | 2015-10-12 | 2015-12-16 | 叶兆铭 | Geometry chessboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |