CN204586251U - A kind of mathematics diagraph - Google Patents
A kind of mathematics diagraph Download PDFInfo
- Publication number
- CN204586251U CN204586251U CN201520131289.0U CN201520131289U CN204586251U CN 204586251 U CN204586251 U CN 204586251U CN 201520131289 U CN201520131289 U CN 201520131289U CN 204586251 U CN204586251 U CN 204586251U
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- joint
- stem
- rule
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Abstract
The utility model discloses a kind of mathematics diagraph, rule is flexibly connected by rotating shaft with stem, spacing angle square is arranged on stem, stop is arranged on the scale, angulation hole is arranged on stem and rule, blackboard absorber is arranged on stem lower end, and universal drive shaft is arranged on stem and blackboard absorber junction, and chalk holder is arranged on rule lower end.The utility model is provided with blackboard absorber, stem can being prevented drawing the round movement be in figure, facilitating the mapping of faculty.The utility model is provided with spacing angle square, stop, angulation hole, can be used as protractor to use, and stem can be enable to form ruler with rule by rotating to overlap, and is used as ruler and uses.The utility model structure is simple, easy to operate, has several functions, facilitates use and the spread of faculty.
Description
Technical field
The utility model originally belongs to teaching aid technical field, particularly relates to a kind of mathematics diagraph.
Background technology
At present, in mathematical education process, often need mapping explanation demonstration on blackboard, especially geometry sum functions explanation, mapping becomes important auxiliary explanation means, but the method that math teacher mainly adopts now is Hand drawing, the hand-held drawing instrument of teacher and chalk are drawn on blackboard, when especially painting circle, more complicated, hand-held compasses, should ensure that the center of circle is constant, ensure that radius is constant again, be difficult to operation.Existing drawing tool function singleness.
Utility model content
The object of the utility model embodiment is to provide a kind of mathematics diagraph, aims to provide the simple and convenient operation of a kind of structure, possesses the diagraph of several functions simultaneously.
The utility model embodiment is achieved in that a kind of mathematics diagraph, and this device comprises: stem, rule, rotating shaft, spacing angle square, stop, angulation hole, blackboard absorber, universal drive shaft, chalk holder;
Rule is flexibly connected by rotating shaft with stem, spacing angle square is arranged on stem, stop is arranged on the scale, angulation hole is arranged on stem and rule, blackboard absorber is arranged on stem lower end, universal drive shaft is arranged on stem and blackboard absorber junction, and chalk holder is arranged on rule lower end;
Further, blackboard absorber can be set to vacuum absorber, magnetic absorption device and needle point according to the type of blackboard, can prevent stem from drawing the round movement be in figure;
Further, be provided with circle center hole in the middle of rotating shaft, the angle of two lines can be read according to the angulation hole on stem and rule by spacing angle square;
Further, stem is provided with groove, and stem can form ruler by rotating to overlap with rule, and the stop on rule can enter groove when overlapping, ensure that stem, rule and spacing angle square are on same straight line, carry out the mathematic(al) construction of straight line by rule simultaneously;
Further, stop being provided with pointer, when drawing the operation justifying or carry out angulation, the number of degrees on spacing angle square can being read.
Further, rule comprises rule body, and the chi back of rule body has a groove, and be provided with chalk in groove, chalk is fixed on rule end by latch; One is had for extracting the nock of chalk at the groove position of rule body.
Further, universal drive shaft adopts flexible universal shaft, comprise the first joint of input power and the second joint of outputting power, universal joint is provided with between first joint and the second joint, universal joint comprises the resilient sleeve of elastic wire or steel bar braiding, two ends are fixedly mounted on the first joint and the second joint, adapt to the change in location of power input shaft and power output shaft for transmitting torque;
Active joint assembly, be arranged on resilient sleeve inside, for preventing moving axially between the first joint and the second joint, and stop the elastic wire of resilient sleeve or steel bar to bend to resilient sleeve inner chamber destructiveness, the active joint in two ends of active joint assembly is connected to the first joint and the second joint respectively, or the active joint in two ends is respectively as a part for the first joint and the second joint; Active joint assembly comprises at least three active joints, an active joint end face between adjacent two active joints is provided with semi-cylindrical projection, another active joint end face between adjacent two active joints is provided with the semi-cylindrical groove matched with semi-cylindrical projection, and the semi-cylindrical on middle active joint end face is protruding or semi-cylindrical groove is protruding with the semi-cylindrical on another end face or axis that is semi-cylindrical groove differs 90 °.
The advantage that the utility model has and good effect are: the utility model is provided with blackboard absorber, stem can being prevented drawing the round movement be in figure, facilitating the mapping of faculty.The utility model is provided with spacing angle square, stop, angulation hole, can be used as protractor to use, and stem can be enable to form ruler with rule by rotating to overlap, and is used as ruler and uses.The utility model structure is simple, easy to operate, has several functions, facilitates use and the spread of faculty.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mathematics diagraph that the utility model embodiment provides;
In figure: 1, stem; 2, rule; 3, rotating shaft; 4, spacing angle square; 5, stop; 6, angulation hole; 7, blackboard absorber; 8, universal drive shaft; 9, chalk holder.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows.There is not the innovation of software or method in the utility model.
Refer to Fig. 1:
As shown in Figure 1, a kind of mathematics diagraph of the utility model embodiment, this device comprises: stem 1, rule 2, rotating shaft 3, spacing angle square 4, stop 5, angulation hole 6, blackboard absorber 7, universal drive shaft 8, chalk holder 9;
Rule 2 is flexibly connected by rotating shaft 3 with stem 1, spacing angle square 4 is arranged on stem 1, stop 5 is arranged on rule 2, angulation hole 6 is arranged on stem 1 and rule 2, blackboard absorber 7 is arranged on stem 1 lower end, universal drive shaft 8 is arranged on stem 1 and blackboard absorber 7 junction, and chalk holder 9 is arranged on rule 2 lower end;
Further, blackboard absorber 7 can be set to vacuum absorber, magnetic absorption device and needle point according to the type of blackboard, can prevent stem 1 from drawing the round movement be in figure;
Further, in the middle of rotating shaft 3, be provided with circle center hole, the angle of two lines can be read according to the angulation hole 6 on stem 1 and rule 2 by spacing angle square 4;
Further, stem 1 is provided with groove, stem 1 can form ruler by rotating to overlap with rule 2, stop 5 on rule 2 can enter groove when overlapping, ensure that stem 1, rule 2 and spacing angle square 4 are on same straight line, carry out the mathematic(al) construction of straight line by rule 2 simultaneously;
Further, stop 5 being provided with pointer, when drawing the operation justifying or carry out angulation, the number of degrees on spacing angle square 4 can being read.
Further, rule 2 comprises rule body, and the chi back of rule body has a groove, and be provided with chalk in groove, chalk is fixed on rule end by latch; One is had for extracting the nock of chalk at the groove position of rule body.
Further, universal drive shaft 8 adopts flexible universal shaft, comprise the first joint of input power and the second joint of outputting power, universal joint is provided with between first joint and the second joint, universal joint comprises the resilient sleeve of elastic wire or steel bar braiding, two ends are fixedly mounted on the first joint and the second joint, adapt to the change in location of power input shaft and power output shaft for transmitting torque;
Active joint assembly, be arranged on resilient sleeve inside, for preventing moving axially between the first joint and the second joint, and stop the elastic wire of resilient sleeve or steel bar to bend to resilient sleeve inner chamber destructiveness, the active joint in two ends of active joint assembly is connected to the first joint and the second joint respectively, or the active joint in two ends is respectively as a part for the first joint and the second joint; Active joint assembly comprises at least three active joints, an active joint end face between adjacent two active joints is provided with semi-cylindrical projection, another active joint end face between adjacent two active joints is provided with the semi-cylindrical groove matched with semi-cylindrical projection, and the semi-cylindrical on middle active joint end face is protruding or semi-cylindrical groove is protruding with the semi-cylindrical on another end face or axis that is semi-cylindrical groove differs 90 °.
The advantage that the utility model has and good effect are: the utility model is provided with blackboard absorber, stem can being prevented drawing the round movement be in figure, facilitating the mapping of faculty.The utility model is provided with spacing angle square, stop, angulation hole, can be used as protractor to use, and stem can be enable to form ruler with rule by rotating to overlap, and is used as ruler and uses.The utility model structure is simple, easy to operate, has several functions, facilitates use and the spread of faculty.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a mathematics diagraph, is characterized in that, this mathematics diagraph comprises: stem, rule, rotating shaft, spacing angle square, stop, angulation hole, blackboard absorber, universal drive shaft, chalk holder;
Rule is flexibly connected by rotating shaft with stem, spacing angle square is arranged on stem, stop is arranged on the scale, angulation hole is arranged on stem and rule, blackboard absorber is arranged on stem lower end, universal drive shaft is arranged on stem and blackboard absorber junction, and chalk holder is arranged on rule lower end;
Blackboard absorber is set to magnetic absorption device; Circle center hole is provided with in the middle of rotating shaft; Stem is provided with groove; Stop is provided with pointer.
2. mathematics diagraph as claimed in claim 1, it is characterized in that, rule comprises rule body, and the chi back of rule body has a groove, and be provided with chalk in groove, chalk is fixed on rule end by latch; One is had for extracting the nock of chalk at the groove position of rule body.
3. mathematics diagraph as claimed in claim 1, it is characterized in that, universal drive shaft adopts flexible universal shaft, comprise the first joint of input power and the second joint of outputting power, universal joint is provided with between first joint and the second joint, universal joint comprises the resilient sleeve of elastic wire or steel bar braiding, two ends are fixedly mounted on the first joint and the second joint, adapts to the change in location of power input shaft and power output shaft for transmitting torque;
Active joint assembly, be arranged on resilient sleeve inside, for preventing moving axially between the first joint and the second joint, and stop the elastic wire of resilient sleeve or steel bar to bend to resilient sleeve inner chamber destructiveness, the active joint in two ends of active joint assembly is connected to the first joint and the second joint respectively, or the active joint in two ends is respectively as a part for the first joint and the second joint; Active joint assembly comprises at least three active joints, an active joint end face between adjacent two active joints is provided with semi-cylindrical projection, another active joint end face between adjacent two active joints is provided with the semi-cylindrical groove matched with semi-cylindrical projection, and the semi-cylindrical on middle active joint end face is protruding or semi-cylindrical groove is protruding with the semi-cylindrical on another end face or axis that is semi-cylindrical groove differs 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131289.0U CN204586251U (en) | 2015-03-09 | 2015-03-09 | A kind of mathematics diagraph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131289.0U CN204586251U (en) | 2015-03-09 | 2015-03-09 | A kind of mathematics diagraph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204586251U true CN204586251U (en) | 2015-08-26 |
Family
ID=53922443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520131289.0U Expired - Fee Related CN204586251U (en) | 2015-03-09 | 2015-03-09 | A kind of mathematics diagraph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204586251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274189A (en) * | 2016-09-23 | 2017-01-04 | 江南大学 | Combination changeable ruler |
| CN107160918A (en) * | 2016-08-07 | 2017-09-15 | 刘凤娇 | The special drawing combination tool of mathematics teacher's writing on the blackboard |
-
2015
- 2015-03-09 CN CN201520131289.0U patent/CN204586251U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160918A (en) * | 2016-08-07 | 2017-09-15 | 刘凤娇 | The special drawing combination tool of mathematics teacher's writing on the blackboard |
| CN106274189A (en) * | 2016-09-23 | 2017-01-04 | 江南大学 | Combination changeable ruler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160921 Address after: 338000 Xinyu Xian Xian West Avenue, Jiangxi, No. 859 Patentee after: Jiangxi engineering college Address before: 338000 Jiangxi Province, Xinyu City Yushui District Xianlai West Road No. 45 building 12 No. 32 Patentee before: Xiong Wei |
|
| DD01 | Delivery of document by public notice |
Addressee: Xiong Wei Document name: Notification of Passing Examination on Formalities |
|
| 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: 20150826 Termination date: 20170309 |