CN209938154U - Universal angle ruler for advanced mathematics - Google Patents
Universal angle ruler for advanced mathematics Download PDFInfo
- Publication number
- CN209938154U CN209938154U CN201920737243.1U CN201920737243U CN209938154U CN 209938154 U CN209938154 U CN 209938154U CN 201920737243 U CN201920737243 U CN 201920737243U CN 209938154 U CN209938154 U CN 209938154U
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- CN
- China
- Prior art keywords
- ruler
- ruler rod
- hole
- movable
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Universal angle ruler is used to higher mathematics. At present, higher mathematics teaching in-process blackboard writing is drawn and is generally used ruler, set square and bevel protractor etc. because the function singleness is and need place on the podium, it is very inconvenient to use. The utility model discloses the constitution includes: the ruler comprises a ruler rod seat (1), wherein a fixed ruler rod (2) penetrates through a vertical hole of the ruler rod seat, a hook (3) is arranged at the upper end of the fixed ruler rod, a movable hook (4) is arranged at the lower end of the fixed ruler rod, a round hole (5) is formed in the movable hook, a shaft hole (6) is formed in the lower end of the fixed ruler rod, an eccentric shaft (7) is arranged in the shaft hole, the eccentric section of the eccentric shaft is inserted into the round hole, a handle (8) is arranged on the eccentric shaft, a movable ruler (9) is arranged in a horizontal hole of the ruler rod seat, and a graduated scale disk (10) is arranged at the right end of the movable ruler rod. The utility model is suitable for an universal angle ruler is used to higher mathematics.
Description
The technical field is as follows:
the utility model relates to an universal angle ruler for higher mathematics.
Background art:
at present, higher mathematics teaching in-process blackboard writing is drawn and is generally used ruler, set square and bevel protractor etc. because the function singleness is and need place on the podium, it is very inconvenient to use, especially need many rulers to share when drawing the function curve that has the coordinate point, makes the operation of drawing more difficult.
The utility model has the following contents:
the utility model aims at providing an universal bevel protractor is used to higher mathematics.
The above purpose is realized by the following technical scheme:
the utility model provides a universal bevel protractor for advanced mathematics, its constitution includes: the movable ruler comprises a ruler rod seat, a fixed ruler rod penetrates through a vertical hole of the ruler rod seat, a hook is arranged at the upper end of the fixed ruler rod, a movable hook is arranged at the lower end of the fixed ruler rod, a round hole is formed in the movable hook, a shaft hole is formed in the lower end of the fixed ruler rod, an eccentric shaft is arranged in the shaft hole, an eccentric section of the eccentric shaft is inserted into the round hole, a handle is arranged on the eccentric shaft, a movable ruler rod is arranged in a horizontal hole of the ruler rod seat, and a graduated scale disc is arranged at the right end of the movable ruler rod.
The utility model provides an universal angle ruler for higher mathematics, the scale dish centre bore has, the scale dish pass through around the centre bore install respectively and rotate chi, rotary disk, the rotary disk on have a handle, the rotary disk the rotary ruler laminate respectively in the preceding, the back of scale dish, the chi pole seat with fixed chi pole laminate each other, move the chi pole with chi pole seat laminate each other.
Has the advantages that:
1. the utility model relates to an universal angle square for higher mathematics, higher mathematics teaching in-process blackboard writing is drawn and is generally used ruler, set-square and angle square etc. because the function singleness is and need place on the podium, and it is very inconvenient to use, especially need many rulers to share when drawing the function curve that has the coordinate point, makes the operation of drawing more difficult, the utility model discloses the eccentric locking structure who has, reliable quick locking ability has, and the teacher can convenient and fast before last class will the utility model discloses fix on the blackboard, therefore the teacher can take at any time and need not to leave the blackboard scope, and the effectual continuity of giving lessons that has improved helps keeping teacher and student's attention can improve higher mathematics's learning efficiency.
2. The utility model discloses a the utility model discloses all be marked with the scale on each movable chi pole, chi dish, help drawing various high function curves or other geometric shapes, have higher professional result of use, owing to need not change other teaching aids alright realize the drawing of the blackboard writing figure in high mathematics classroom, therefore the utility model relates to an efficient advanced mathematics teaching aid.
3. The utility model discloses because the last handle that has of movable ruler dish, therefore the blade has higher stability when drawing the figure, delays time because of the unstable drawing mistake that causes of blade when having avoided doing the geometric figure.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
example 1:
the utility model provides a universal bevel protractor for advanced mathematics, its constitution includes: the ruler comprises a ruler rod seat 1, wherein a fixed ruler rod 2 penetrates through a vertical hole of the ruler rod seat, a hook 3 is arranged at the upper end of the fixed ruler rod, a movable hook 4 is arranged at the lower end of the fixed ruler rod, a round hole 5 is formed in the movable hook, a shaft hole 6 is formed in the lower end of the fixed ruler rod, an eccentric shaft 7 is arranged in the shaft hole, an eccentric section of the eccentric shaft is inserted into the round hole, a handle 8 is arranged on the eccentric shaft, a movable ruler rod 9 is arranged in a horizontal hole of the ruler rod seat, and a graduated scale disc 10 is arranged at the right end of the movable ruler rod.
Example 2:
according to the universal angle ruler for advanced mathematics in embodiment 1, the graduated scale disk is provided with a central hole 11, a rotary ruler 12 and a rotary disc 13 are respectively arranged at the front and the back of the graduated scale disk through the central hole, the rotary disc is provided with a handle 14, the rotary disc and the rotary ruler are respectively attached to the front and the back of the graduated scale disk, the ruler rod seat is attached to the fixed ruler rod, and the movable ruler rod is attached to the ruler rod seat.
Claims (2)
1. The utility model provides a universal bevel protractor for advanced mathematics, its constitution includes: chi pole seat, characterized by: the vertical hole of the ruler rod seat is internally provided with a fixed ruler rod which penetrates through, the upper end of the fixed ruler rod is provided with a hook, the lower end of the fixed ruler rod is provided with a movable hook, the movable hook is provided with a round hole, the lower end of the fixed ruler rod is provided with a shaft hole, an eccentric shaft is arranged in the shaft hole, the eccentric section of the eccentric shaft is inserted into the round hole, the eccentric shaft is provided with a handle, the horizontal hole of the ruler rod seat is internally provided with a movable ruler rod, and the right end of the movable ruler rod is provided with a graduated scale disk.
2. The universal angle ruler for advanced mathematics as claimed in claim 1, wherein: the scale disc is provided with a central hole, a rotary ruler and a rotary disc are respectively arranged in the front and the back of the scale disc through the central hole, a handle is arranged on the rotary disc, the rotary disc and the rotary ruler are respectively attached to the front and the back of the scale disc, the ruler rod seat is attached to the fixed ruler rod, and the movable ruler rod is attached to the ruler rod seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920737243.1U CN209938154U (en) | 2019-05-22 | 2019-05-22 | Universal angle ruler for advanced mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920737243.1U CN209938154U (en) | 2019-05-22 | 2019-05-22 | Universal angle ruler for advanced mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209938154U true CN209938154U (en) | 2020-01-14 |
Family
ID=69133548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920737243.1U Expired - Fee Related CN209938154U (en) | 2019-05-22 | 2019-05-22 | Universal angle ruler for advanced mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209938154U (en) |
-
2019
- 2019-05-22 CN CN201920737243.1U patent/CN209938154U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200114 Termination date: 20210522 |