CN210428977U - Multifunctional teaching aid for economics - Google Patents
Multifunctional teaching aid for economics Download PDFInfo
- Publication number
- CN210428977U CN210428977U CN201921398459.6U CN201921398459U CN210428977U CN 210428977 U CN210428977 U CN 210428977U CN 201921398459 U CN201921398459 U CN 201921398459U CN 210428977 U CN210428977 U CN 210428977U
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- China
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- ruler
- tip
- terminal surface
- mounting hole
- center pin
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Abstract
The utility model discloses a multi-functional teaching aid of economics, including left ruler, right ruler and have damped pivot, the tip of a left side ruler and the tip of right ruler two are rotatable the installing in the pivot respectively to the tip of a left side ruler and the tip of right ruler two are arranged from top to bottom, the terminal surface of the tip of two of a left side ruler has been seted up and has been set up and to have set up the confined mounting hole, the terminal surface of the tip of a right side ruler is provided with most advanced, the length of right side ruler is greater than the length of left ruler to be provided with the bull stick on the terminal surface of the tip of right ruler two, the utility model discloses simple structure, convenient to use.
Description
Technical Field
The utility model relates to a technical field of economics teaching device specifically is a multi-functional teaching aid of economics.
Background
Economics is in teaching, and is the cooperation of figures and figures mostly to increase student's memory and understanding, wherein, the number of times of using ruler and compasses is also more, can become some and need carry ruler and circular orbit simultaneously, in order to accomplish the teaching task, just increased mr's amount of labour like this among the intangible.
To reduce the amount of tools that a teacher carries, a multi-functional teaching is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multi-functional teaching aid of economics has solved the problem that modern mr need carry ruler and compasses simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multi-functional teaching aid of economics, includes left ruler, right ruler and has damped pivot, the tip two of tip one and right ruler of left side ruler is rotatable the installing in the pivot respectively to the tip two of tip one and right ruler of left side ruler arranges from top to bottom, the terminal surface of the tip two of left side ruler has been seted up and has been set up the confined mounting hole, the terminal surface of the tip one of right side ruler is provided with most advanced, the length of right side ruler is greater than the length of left ruler to be provided with the bull stick on the terminal surface of the tip two of right ruler.
Further, the pivot includes the center pin, goes up lock nut, lower lock nut and damping rubber layer, the side central point of center pin puts and is provided with the step to screw thread has been seted up respectively in upper portion and lower part, and the side of center pin is fixed between screw thread and step and is provided with damping rubber layer, the first mounting hole that runs through the terminal surface of offering of tip of left side ruler is one, the mounting hole two that runs through the terminal surface is seted up to the second tip of right side ruler, mounting hole one and mounting hole two respectively the suit on the damping rubber layer of the upper portion and the lower part of center pin to all with damping rubber layer interference fit, last lock nut and lower lock nut be the spiro union respectively on the upper portion and the lower part of center pin, and with the step cooperation to the upper and lower position of the first tip of fixed left ruler and the second tip of right ruler.
Furthermore, scale marks are marked on the edges of the left ruler and the right ruler.
Compared with the prior art, the beneficial effects of the utility model are that:
convenient operation combines ruler and compasses organic, has reduced the amount that the mr carried the instrument together, has reduced mr's work load, simple structure to the operation.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a partial sectional view of the pivot assembly of the present invention.
In the figure: the novel ruler comprises a left ruler-1, a right ruler-2, a rotating shaft-3, a first end part-4 of the left ruler, a second end part-5 of the right ruler, a second end part-6 of the left ruler, a mounting hole-7, a first end part-8 of the right ruler, a tip-9, a rotating rod-10, a central shaft-11, an upper locking nut-12, a lower locking nut-13, a damping rubber layer-14, a step-15, a first mounting through hole-16 and a second mounting through hole-17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the drawings, the utility model provides a technical scheme: the utility model provides a multi-functional teaching aid of economics, includes left ruler 1, right ruler 2 and has damped pivot 3, the rotatable installation in pivot 3 respectively of tip two 5 of tip 4 and right ruler 2 of left side ruler 1 to tip two 4 of left side ruler 1 and tip two 5 of right ruler 2 are arranged from top to bottom, the terminal surface of tip two 6 of left side ruler 1 has been seted up and has been set up and to have set up confined mounting hole 7, the terminal surface of tip one 8 of right side ruler 2 is provided with most advanced 9, the length of right side ruler 2 is greater than the length of left ruler 1 to be provided with bull stick 10 on the terminal surface of tip two 5 of right ruler 2, be carved with the scale mark on the edge of left side ruler 1 and right ruler 2.
Specifically, the rotating shaft 3 comprises a central shaft 11, an upper lock nut 12, a lower lock nut 13 and a damping rubber layer 14, a step 15 is arranged at the central position of the side surface of the central shaft 11, and the upper part and the lower part are respectively provided with a thread, the side surface of the central shaft 11 is fixedly provided with a damping rubber layer 14 between the thread and a step 15, a first mounting through hole 16 penetrating through the end face is formed in the first end portion 4 of the left ruler 1, a second mounting hole 17 penetrating through the end face is formed in the second end portion 5 of the right ruler 2, the first mounting through hole 16 and the second mounting through hole 17 are respectively sleeved on the damping rubber layer 14 at the upper part and the lower part of the central shaft 11, and are in interference fit with the damping rubber layer 14, the upper locking nut 12 and the lower locking nut 13 are respectively screwed on the upper part and the lower part of the central shaft 11, and cooperates with the step 15 to fix the up-and-down position of the first end 4 of the left straightedge 1 and the second end 5 of the right straightedge 2.
The working principle is as follows:
when the ruler is needed to be used, the left ruler 1 and the right ruler 2 only need to be rotated to the same horizontal line, and the rotating shaft 3 has damping, so that the left ruler 1 and the right ruler 2 can resist certain pressure, and the included angle between the left ruler 1 and the right ruler 2 can be ensured to be difficult to change. When the compass is used as a compass, chalk can be arranged in the mounting hole 7, and the tip 9 can be used as a circle center.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a multi-functional teaching aid of economics which characterized in that: including left ruler, right ruler and have damped pivot, the tip two of the tip one and the right ruler of left ruler is rotatable the installing in the pivot respectively to the tip two of the tip one and the right ruler of left ruler is arranged from top to bottom, the terminal surface of the tip two of left ruler has been seted up and has been set up confined mounting hole, the terminal surface of the tip one of right ruler is provided with most advanced, the length of right ruler is greater than the length of left ruler to be provided with the bull stick on the terminal surface of the tip two of right ruler.
2. A multi-functional teaching aid of economics according to claim 1 wherein: the pivot includes the center pin, goes up lock nut, lower lock nut and damping rubber layer, the side central point of center pin puts and is provided with the step to screw thread has been seted up respectively in upper portion and lower part, the side of center pin is fixed between screw thread and step and is provided with the damping rubber layer, the first mounting hole that runs through the terminal surface of offering of the tip of left side ruler, the mounting hole two that runs through the terminal surface is seted up to the second tip of right side ruler, mounting hole one and mounting hole two respectively the suit on the damping rubber layer of the upper portion and the lower part of center pin to all with damping rubber layer interference fit, last lock nut with lock nut down screw joint respectively on the upper portion and the lower part of center pin, and with the step cooperation to the upper and lower position of the first tip of fixed left ruler and the second tip of right ruler.
3. A multi-functional teaching aid of economics according to claim 2 wherein: scale marks are marked on the edges of the left ruler and the right ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921398459.6U CN210428977U (en) | 2019-08-27 | 2019-08-27 | Multifunctional teaching aid for economics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921398459.6U CN210428977U (en) | 2019-08-27 | 2019-08-27 | Multifunctional teaching aid for economics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210428977U true CN210428977U (en) | 2020-04-28 |
Family
ID=70364540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921398459.6U Active CN210428977U (en) | 2019-08-27 | 2019-08-27 | Multifunctional teaching aid for economics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210428977U (en) |
-
2019
- 2019-08-27 CN CN201921398459.6U patent/CN210428977U/en active Active
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