CN205388852U - Switch teaching board based on higher mathematics exercise - Google Patents
Switch teaching board based on higher mathematics exercise Download PDFInfo
- Publication number
- CN205388852U CN205388852U CN201620116393.7U CN201620116393U CN205388852U CN 205388852 U CN205388852 U CN 205388852U CN 201620116393 U CN201620116393 U CN 201620116393U CN 205388852 U CN205388852 U CN 205388852U
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- CN
- China
- Prior art keywords
- connecting rod
- revolute pair
- link
- exercise
- rocking bar
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- Expired - Fee Related
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Abstract
The utility model discloses a switch teaching board based on higher mathematics exercise is by support, support arm, first rocker, second rocker, first connecting rod, second connecting rod, third connecting rod and fourth connecting rod composition. The support frame is equipped with the recess, can adorn little article such as chalk, little ruler, pencil, through swaying the fourth connecting rod, the fourth connecting rod drives the third connecting rod and carries out circular motion, carries out crank circular motion with a chronozone first rocker and second rocker, and then the parallelogram's who forms through the member motion makes the exercise board carry out the renewal switching of exercise. The utility model discloses the flexible operation is light, and observability and maneuverability are strong, only needs to rotate the fourth connecting rod and can carry out the exercise switching, makes things convenient for the student to operate and understand, convenient teaching.
Description
Technical field
The present invention relates to Higher Mathematics Teaching field, be specifically related to a kind of based on higher mathematics exercise switching board of education.
Background technology
In order to help student to form clear and definite concept, improve student learning interest in teaching process, enriching perceptual knowledge, teaching aid arises at the historic moment, with for the observation ability of Developing Students ' and ability of thinking.But major part teaching aid is primarily servicing student, and lacks the function of auxiliary teacher's teaching.In Higher Mathematics Teaching, exercise amount is big, chi is fixed on blackboard table and carries out writing and affect teaching process, and it is very inconvenient that teacher writes exercise, but the exercise switch boards of present stage is practical not, complicated operation, and mobility is little.
Summary of the invention
In view of the foregoing, one provided by the invention switches board of education based on higher mathematics exercise, facilitates exercise switching to impart knowledge to students.
The present invention reaches above-mentioned purpose by the following technical programs: a kind of based on higher mathematics exercise switching board of education, is made up of support, support arm, the first rocking bar, the second rocking bar, first connecting rod, second connecting rod, third connecting rod and fourth link.
nullSupport arm is fixed on support central authorities，First rocking bar first link is connected by first link of the first revolute pair and support arm，Second rocking bar first link is connected by second link of the second revolute pair and support arm，First connecting rod one end is connected by second link of the 3rd revolute pair and the first rocking bar，The first connecting rod other end by the 4th revolute pair with and second link of the second rocking bar be connected，Second connecting rod one end is connected by the 3rd link of the 5th revolute pair and the first rocking bar，The second connecting rod other end is connected by the 6th revolute pair and the 3rd link of the second rocking bar，Third connecting rod one end is connected by the 3rd link of the 5th revolute pair and the first rocking bar，The third connecting rod other end is connected with fourth link one end by the 7th revolute pair，The fourth link other end is connected by the 3rd link of the 8th revolute pair and support arm.
Described first revolute pair and the second revolute pair axis are parallel to each other, and the 3rd revolute pair, the 4th revolute pair, the 5th revolute pair, the 6th revolute pair, the 7th revolute pair and the 8th revolute pair axis are parallel to each other.
Described support arm is provided with groove, it is possible to the little article such as dress chalk, little ruler, pencil.
Described exercise switching board of education operation principle is: shake fourth link, fourth link drives third connecting rod to carry out circular motion, band the first rocking bar and the second rocking bar carry out crank circular motion simultaneously, and then the motion of the parallelogram consisted of rod member makes the renewal that exercise plate carries out exercise switch.
Useful benefit of the present utility model has:
1, exercise easy switching, reduces workload；
2, support arm is provided with groove, it is possible to the dress little article such as chalk, little ruler, pencil, and support also ensure that two vertical lines are parallel to each other and vertically, attractive in appearance
3, flexible operation is light, ornamental and workable, facilitates student to operate and understands, only needing moving handle that comparison frame can be driven to move, convenient teaching.
Accompanying drawing explanation
The one that Fig. 1 is the present invention switches board of education structural representation based on higher mathematics exercise.
The one that Fig. 2 is the present invention switches board of education structure front view based on higher mathematics exercise.
The one that Fig. 3 is the present invention switches board of education structure diagonal view based on higher mathematics exercise.
The one that Fig. 4 is the present invention switches board of education the first switching construction figure based on higher mathematics exercise.
The one that Fig. 5 is the present invention switches board of education the second switching construction figure based on higher mathematics exercise.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme is described further.
Comparison Fig. 1 and Fig. 2, the present invention reaches above-mentioned purpose by the following technical programs: a kind of based on higher mathematics exercise switching board of education, is made up of support 1, support arm the 2, first rocking bar the 3, second rocking bar 5, first connecting rod 4, second connecting rod 6, third connecting rod 8 and fourth link 7.
nullSupport arm 2 is fixed on support 1 central authorities，First rocking bar 3 first link is connected by 2 first links of the first revolute pair 9 and support arm，Second rocking bar 5 first link is connected by 2 second links of the second revolute pair 10 and support arm，First connecting rod 4 one end is connected by 3 second links of the 3rd revolute pair 11 and the first rocking bar，First connecting rod 4 other end by the 4th revolute pair 12 with and 5 second links of the second rocking bar be connected，Second connecting rod 6 one end is connected by the 3rd link of the 5th revolute pair 13 and the first rocking bar 3，Second connecting rod 6 other end is connected by the 6th revolute pair 14 and the 3rd link of the second rocking bar 5，Third connecting rod 8 one end is connected by the 3rd link of the 5th revolute pair 13 and the first rocking bar 3，Third connecting rod 8 other end is connected with fourth link 7 one end by the 7th revolute pair 16，Fourth link 7 other end is connected by the 3rd link of the 8th revolute pair 15 and support arm.
Described first revolute pair and the second revolute pair axis are parallel to each other, and the 3rd revolute pair, the 4th revolute pair, the 5th revolute pair, the 6th revolute pair, the 7th revolute pair and the 8th revolute pair axis are parallel to each other.
Described support arm is provided with groove, it is possible to the little article such as dress chalk, little ruler, pencil.
As shown in Figure 4 and Figure 5, described exercise switching board of education operation principle is: shake fourth link, fourth link drives third connecting rod to carry out circular motion, band the first rocking bar and the second rocking bar carry out crank circular motion simultaneously, and then the motion of the parallelogram consisted of rod member makes the renewal that exercise plate carries out exercise switch.
Claims (2)
1. switch a board of education based on higher mathematics exercise, be made up of support, support arm, the first rocking bar, the second rocking bar, first connecting rod, second connecting rod, third connecting rod and fourth link, it is characterised in that:
nullSupport arm is fixed on support central authorities，First rocking bar first link is connected by first link of the first revolute pair and support arm，Second rocking bar first link is connected by second link of the second revolute pair and support arm，First connecting rod one end is connected by second link of the 3rd revolute pair and the first rocking bar，The first connecting rod other end by the 4th revolute pair with and second link of the second rocking bar be connected，Second connecting rod one end is connected by the 3rd link of the 5th revolute pair and the first rocking bar，The second connecting rod other end is connected by the 6th revolute pair and the 3rd link of the second rocking bar，Third connecting rod one end is connected by the 3rd link of the 5th revolute pair and the first rocking bar，The third connecting rod other end is connected with fourth link one end by the 7th revolute pair，The fourth link other end is connected by the 3rd link of the 8th revolute pair and support arm.
2. one according to claim 1 switches board of education based on higher mathematics exercise, it is characterized in that: described first revolute pair and the second revolute pair axis are parallel to each other, and the 3rd revolute pair, the 4th revolute pair, the 5th revolute pair, the 6th revolute pair, the 7th revolute pair and the 8th revolute pair axis are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620116393.7U CN205388852U (en) | 2016-02-05 | 2016-02-05 | Switch teaching board based on higher mathematics exercise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620116393.7U CN205388852U (en) | 2016-02-05 | 2016-02-05 | Switch teaching board based on higher mathematics exercise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388852U true CN205388852U (en) | 2016-07-20 |
Family
ID=56382626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620116393.7U Expired - Fee Related CN205388852U (en) | 2016-02-05 | 2016-02-05 | Switch teaching board based on higher mathematics exercise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388852U (en) |
-
2016
- 2016-02-05 CN CN201620116393.7U patent/CN205388852U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20170205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |