CN203864268U

CN203864268U - Novel multifunctional compass

Info

Publication number: CN203864268U
Application number: CN201420262409.6U
Authority: CN
Inventors: 张泽奎; 赵鑫; 柳一博; 毛伟; 张建雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-05-22
Filing date: 2014-05-22
Publication date: 2014-10-08
Anticipated expiration: 2024-05-22

Abstract

The utility model relates to the technical field of a teaching appliance and especially relates to a novel multifunctional compass. The middle hollow part of a main body inwardly recesses to form a chute; two ends of the main body are respectively connected with a rotating arm rotating on a main shaft via the driving shaft; one end of the main body is connected with a suction disc; the circle center is right when drawn via a suction disc technology; the novel multifunctional compass possesses great fixation performance, so precise circle size can be drawn; the two ends of the main body are respectively connected with a scale disc via the driving shaft; with the scale disc, an arc corresponding to a concrete central angle can be drawn; the driving shaft and a driven shaft on the main body rotating arms are provided with scales; a concrete angle can be drawn via the scales; the external surface of the main body is provided with scales; scale marks are laser marked, so the scales are accurate with clean and fine writing and color remaining performance; a straight line with a certain length can be drawn; parallel lines can be drawn, too; and except for circles, a concrete arc, an angle, a straight line and parallel lines can be also drawn by the novel multifunctional compass.

Description

A kind of Multifunctional compasses

[technical field]

The utility model relates to teaching aid technical field, relates in particular to a kind of Multifunctional compasses.

[background technology]

Compasses are used for the instrument of draw circles or string in Graphing of Engineering and other teaching, be usually used in construction with ruler and compasses, compasses make normally metal, comprise that two parts connect by a hinge, wherein can adjust, traditional educational compasses is all " people " font mostly, and when blackboard upper drawing circle, the center of circle is easily shifted, draw easily distortion of circle, thereby cause again finding the center of circle accurately, traditional compasses are drawn circle all to be needed first to measure out required radius with ruler, then on blackboard, start picture circle; When drawing radian, traditional compasses can only be drawn circular arc, but can not draw the corresponding circular arc of a certain concrete central angle; Traditional compasses more can not be used for a certain concrete angle of picture, and in view of this existing educational compasses instructional function is single, can only be used for picture circle, in the time of need to drawing other geometric figure, will use other drawing teaching instrument, the existing educational compasses scope of application is little, function singleness, underaction.

Therefore, in order to overcome above-mentioned deficiency, design the problem that a picture bowlder solves center of circle displacement, the function of the multiple measurement facilities such as existing compasses, ruler, set square, protractor is integrated into a kind of Multifunctional compasses dexterously, just inventor's problem to be solved simultaneously.

[utility model content]

For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Multifunctional compasses, when can avoid center of circle displacement, can realize multiple drawing function.

For achieving the above object, the utility model can adopt following technical scheme: a kind of Multifunctional compasses, it comprises main body, described main body is list structure, hollow out in the middle of described main body, in the middle of described main body, hollow out position caves inward and is formed with chute, described main body two ends are connected with the turning arm that can rotate on driving shaft by driving shaft, described main body one end is connected with dial by driving shaft, described main body one end is connected with sucker, on driving shaft on described main body turning arm and driven shaft, there is scale, utilize scale can draw the angle of a certain angle of determining arbitrarily, described main body outer surface is provided with scale, utilizes scale can draw the straight line of certain length, can also draw parallel lines simultaneously.

Further, described dial scale is 0 °-360 °.

Further, the scale of described driving shaft outer surface is 90 °-0 °-90 °, and described driven shaft outer surface has three datum marks, and the supporting reading of scale on driving shaft and driven shaft just can draw arbitrarily angled between 0 °-360 °.

Further, described turning arm bottom is provided with sucking disc arm, sucking disc arm one end is provided with locating dowel, described sucking disc arm is connected with driving shaft with one end of locating dowel, described locating dowel is vertical with sucking disc arm and extend sucking disc arm, described locating dowel bottom is provided with pilot pin, and described sucking disc arm heterodoxy is provided with sucker.

Further, described turning arm comprises two picture parts, and described picture parts are symmetrical structure, and picture parts have gap, and described picture parts one end is arcuate structure.

Further, described slide block is embedded in intrinsic chute, is provided with chalk holder in slide block, and chalk holder upper end is connected with chalk cap, and described chalk holder is that interference is connected with slide block.

Compared with prior art, the beneficial effects of the utility model are:

1, the utility model compasses can be drawn arbitrarily the circle of any radius, and the position that only need to adjust chalk holder just can draw the circle of required radius.

2, the utility model compasses base adopts sucker technology, sucker is fixed on blackboard, left hand is pinned driving shaft, the right hand is adjusted to chalk holder will draw radius of a circle place, with chalk holder, drive main body to rotate a circle, the center of circle of the utility model compasses can not be offset, and stationarity is good, so it is accurate to draw round size.

3, the utility model compasses main body one end is connected with dial, utilizes the scale on dial, can draw the corresponding circular arc of a certain concrete central angle.

4, to utilize the scale of driving shaft outer surface be 90 °-0 °-90 ° to the utility model compasses, and driven shaft outer surface has three datum marks, and the supporting reading of scale on driving shaft and driven shaft just can draw arbitrarily angled between 0 °-360 °.

5, the graduation mark on the utility model multifunctional compass is all to be formed by laser index carving, and scale is accurate, and writing is meticulous clear and can not fade, and utilizes scale can draw the straight line of certain length, can also draw parallel lines simultaneously.

[accompanying drawing explanation]

Fig. 1 is the utility model cross-sectional view.

Fig. 2 is the utility model plan structure schematic diagram.

Fig. 3 is that the utility model is used status architecture schematic diagram.

Description of reference numerals: 11-main body; 12-nut; 13-dial; 14-turning arm; 15-sucking disc arm; 16-locates; 17-pilot pin; 18-sucker; 19-chute; 20-driving shaft;

21-chalk cap; 22-chalk holder; 23-slide block; 24-picture parts.

[specific embodiment]

Below in conjunction with specific embodiment, further set forth the utility model, should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values drop on application appended claims limited range equally.

Referring to Fig. 1, it is a kind of Multifunctional compasses cross-sectional view of the utility model, compasses comprise main body 11, main body 11 two ends are arc-shaped structure, main body is provided with driving shaft 20 in 11 two ends, main body 11 mid portions are list structure, hollow out in the middle of main body 11, in the middle of main body 11, hollow out position caves inward and is formed with chute 19, main body 19 two ends are connected with the turning arm 14 that can rotate on driving shaft 20 by driving shaft 20, main body 11 one end are connected with dial 13 by driving shaft 20, the top of dial 13 is adopted and is threaded with driving shaft 20 by nut 12, by dial 13 be arranged on the main body 11 on driving shaft 20, turning arm 14 is fixing, main body 11 one end are connected with sucker 18, main body 11 outer surfaces are provided with the scale that can measure length, the scale of body 11 outer surfaces is 90 °-0 °-90 °, driven shaft outer surface has three datum marks, scale on driving shaft and driven shaft supports the use, just can draw arbitrarily angled between 0 °-360 °.On dial 13, be provided with the scale that can take measurement of an angle, dial 13 scales are 0 °-360 °, are provided with the scale that can measure length on turning arm 14.

Shown in Figure 1, turning arm 14 bottoms are provided with sucking disc arm 15, sucking disc arm 15 one end are provided with locating dowel 16, sucking disc arm 15 is connected with driving shaft 20 with one end of locating dowel 16, locating dowel 16 is vertical with sucking disc arm 15 and extend sucking disc arm 15, locating dowel 16 bottoms are provided with pilot pin 17, and sucking disc arm 15 other ends are provided with sucker 18.

Referring to Fig. 2, it is the utility model plan structure schematic diagram, slide block 23 is embedded in the chute 19 in body 11, slide block 23 can be in the interior slip of chute 19, in slide block 23, be provided with chalk holder 22, chalk holder 22 upper ends are connected with chalk cap 21, and chalk holder 22 and slide block 23 are connected for interference.

Referring to Fig. 3, be that the utility model is used status architecture schematic diagram, turning arm 14 comprises two picture parts 24, described picture parts 24 are symmetrical structure, picture parts 24 have gap, picture parts 24 one end are arcuate structure, the position that turning arm 14 is connected with driving shaft 20 is arc, is provided with scale above arc, and the picture parts 24 of turning arm 14 are provided with scale above.

Use the utility model to draw circle operation, by sucker 18, pilot pin 17 is fixed on above blackboard, pin driving shaft 20, point centered by pilot pin 17, selectedly to draw radius of a circle, the position of slide block 23 is moved to body 11 corresponding will picture on round scale above, hold chalk holder 22, drive body 11 to rotate a circle with pilot pin 17, the radius of a circle of the position that chalk contacts and draws with blackboard for drawing, by above operation, can draw arbitrarily the circle of any radius, the position that only need to adjust chalk holder 22 base slider 23 just can draw the circle of required radius.

Use the utility model to draw radian operation, by sucker 18, pilot pin 17 is fixed on above blackboard, pin driving shaft 20, point centered by pilot pin 17, by the selected value that will draw radian of dial 13, the position of slide block 23 is moved to body 11 above on the corresponding scale that will draw radian, hold chalk holder 22, drive body 11 with pilot pin 17 rotations, when body 11 rotates on the position of the selected corresponding radian of dial 13, complete the drafting of selected radian, the radian of the position that chalk contacts and draws with blackboard for drawing, by above operation, draw the corresponding circular arc of a certain central angle.

Use the utility model to draw angle operation, by sucker 18, pilot pin 17 is fixed on above blackboard, pin driving shaft 20, point centered by pilot pin 17, first draws straight line with body 11, then take this straight line as datum line, the scale of body 11 outer surfaces is 90 °-0 °-90 °, driven shaft outer surface has three datum marks, and the scale on driving shaft and driven shaft supports the use, and just can draw arbitrarily angled between 0 °-360 °.

Use the utility model to draw linear operating, body 11 is fixed on blackboard, the drafting that the edge by body 11 outsides can accomplish linear as ruler, can open turning arm 14 simultaneously, can further extend the length of drawn straight line.

The utility model compasses base adopts sucker 18 technology, sucker 18 is fixed on blackboard, left hand is pinned driving shaft 20, the right hand is adjusted to chalk holder 22 will draw radius of a circle place, with chalk holder 22, drive main body 11 to rotate a circle, the center of circle of the utility model compasses can not be offset, stationarity is good, so it is accurate to draw round size, graduation mark on the utility model multifunctional compass is all to be formed by laser index carving, and scale is accurate, and writing is meticulous clear and can not fade, can be used for the straight line of picture length simultaneously, can also draw parallel lines.

Claims

1. a Multifunctional compasses, it is characterized in that: it comprises main body, described main body is list structure, hollow out in the middle of described main body, in the middle of described main body, hollow out position caves inward and is formed with chute, and described main body two ends are connected with the turning arm that can rotate on driving shaft by driving shaft; Described main body one end is connected with dial by driving shaft, and described main body one end is connected with sucker, on the driving shaft on described main body turning arm and driven shaft, has scale, and described main body outer surface is provided with scale.

2. a kind of Multifunctional compasses according to claim 1, is characterized in that: described dial scale is 0 °-360 °.

3. a kind of Multifunctional compasses according to claim 1, is characterized in that: the scale of described driving shaft outer surface is 90 °-0 °-90 °, and driven shaft outer surface has three datum marks, the supporting reading of scale on driving shaft and driven shaft.

4. a kind of Multifunctional compasses according to claim 1, it is characterized in that: described turning arm bottom is provided with sucking disc arm, sucking disc arm one end is provided with locating dowel, described sucking disc arm is connected with driving shaft with one end of locating dowel, described locating dowel is vertical with sucking disc arm and extend sucking disc arm, described locating dowel bottom is provided with pilot pin, and the described sucking disc arm other end is provided with sucker.

5. according to a kind of Multifunctional compasses described in claim 1 or 4, it is characterized in that: described turning arm comprises two picture parts, described picture parts are symmetrical structure, and picture parts have gap, and described picture parts one end is arcuate structure.