CN215435781U - Teaching aid for classroom of colleges and universities - Google Patents
Teaching aid for classroom of colleges and universities Download PDFInfo
- Publication number
- CN215435781U CN215435781U CN202121271243.0U CN202121271243U CN215435781U CN 215435781 U CN215435781 U CN 215435781U CN 202121271243 U CN202121271243 U CN 202121271243U CN 215435781 U CN215435781 U CN 215435781U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- scraper
- eraser
- auxiliary
- teaching aid
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a teaching aid for colleges and universities, which comprises an eraser, wherein scraper grooves are symmetrically formed in the eraser, scraper springs are symmetrically arranged in the eraser, scrapers are fixedly arranged at the tops of the scraper springs and are matched with the scraper grooves for use, auxiliary columns are symmetrically screwed on two sides of the eraser, fixing openings matched with the auxiliary columns for use are formed in each scraper, an auxiliary circular groove is formed in the eraser, a threaded column is movably arranged in the auxiliary circular groove, and an anti-falling block is fixedly arranged at one end of the threaded column. Brings great convenience to users.
Description
Technical Field
The utility model belongs to the technical field of teaching aids, and particularly relates to a teaching aid for a classroom of colleges and universities.
Background
The teaching aid is used as a teaching aid for teachers, has an irreplaceable function of other means, and generally comprises an eraser, chalk, a model and the like.
When some chalks on an erasing blackboard of the existing blackboard eraser are gathered and agglomerated, a user is often required to manually clean the blackboard for the second time, the blackboard display effect is greatly reduced, the functions are fewer, and therefore the teaching aid for colleges and universities is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a teaching aid for classroom in colleges and universities, and aims to solve the problems that the existing blackboard eraser is difficult to clean and has few functions when agglomeration is faced in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a teaching aid for colleges and universities classroom, includes the blackboard eraser, the symmetry has been seted up on the blackboard eraser and has been scraped the board groove, the symmetry installs the scraper blade spring in the blackboard eraser, scraper blade spring top fixed mounting has the scraper blade, the scraper blade uses with scraping the cooperation of board groove, the blackboard eraser bilateral symmetry has closed the auxiliary column soon, every all set up on the scraper blade with the fixed mouthful that the auxiliary column cooperation was used.
Preferably, an auxiliary circular groove is formed in the blackboard eraser, a threaded column is movably mounted in the auxiliary circular groove, an anti-falling block is fixedly mounted at one end of the threaded column, an indicating rod is fixedly mounted at the other end of the threaded column, an auxiliary ring is fixedly mounted on one side of the blackboard eraser, an auxiliary opening is formed in the auxiliary ring, a threaded hole matched with the threaded column for use is formed in the blackboard eraser, an auxiliary block is fixedly mounted at one end of the indicating rod, and a cushion is fixedly mounted at one end of the auxiliary block.
Preferably, the top of the blackboard eraser is fixedly provided with an auxiliary eraser block, and the blackboard eraser is symmetrically provided with handles.
Preferably, the scraper spring and the scraper are fixedly installed through screws, and the eraser and the scraper spring are fixedly installed through screws.
Preferably, the auxiliary port is closely attached to the surface of the indicating rod.
Compared with the prior art, the utility model has the beneficial effects that:
1. when some chalks on the blackboard are accumulated and agglomerated by the existing blackboard eraser 1, a user is often required to manually clean the blackboard for the second time, and the blackboard display effect is greatly reduced.
2. The conventional eraser 1 has fewer functions, and the indication rod 12 can be screwed out by the way that the indication rod 12 is arranged on the eraser 1 and the threaded column 11 is matched with the threaded hole 13, so that the functionality of the eraser 1 is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic side sectional view of the present invention;
in the figure: 1. erasing the blackboard; 2. a squeegee; 3. a grip; 4. an auxiliary column; 5. an auxiliary block; 6. auxiliary wiping blocks; 7. an auxiliary ring; 8. a soft cushion; 9. an auxiliary circular groove; 10. an anti-drop block; 11. a threaded post; 12. an indication lever; 13. a threaded hole; 14. an auxiliary port; 15. a blade spring; 16. a fixed port; 17. a scraper groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a teaching aid for colleges and universities, which comprises an eraser 1, wherein scraper grooves 17 are symmetrically formed in the eraser 1, scraper springs 15 are symmetrically arranged in the eraser 1, scrapers 2 are fixedly arranged at the tops of the scraper springs 15, the scrapers 2 are matched with the scraper grooves 17 for use, auxiliary columns 4 are symmetrically screwed on two sides of the eraser 1, fixing ports 16 matched with the auxiliary columns 4 for use are formed in each scraper 2, and when some chalks on the blackboard are erased by the existing eraser 1, the existing eraser 1 needs to be manually cleaned for the second time by a user, so that the blackboard display effect is greatly reduced.
Furthermore, an auxiliary circular groove 9 is formed in the eraser 1, a threaded column 11 is movably mounted in the auxiliary circular groove 9, an anti-falling block 10 is fixedly mounted at one end of the threaded column 11, an indicating rod 12 is fixedly mounted at the other end of the threaded column 11, an auxiliary ring 7 is fixedly mounted at one side of the eraser 1, an auxiliary opening 14 is formed in the auxiliary ring 7, a threaded hole 13 matched with the threaded column 11 for use is formed in the eraser 1, an auxiliary block 5 is fixedly mounted at one end of the indicating rod 12, a cushion 8 is fixedly mounted at one end of the auxiliary block 5, and the existing eraser 1 has fewer functions.
Furthermore, the top of the blackboard eraser 1 is fixedly provided with an auxiliary eraser block 6, and the blackboard eraser 1 is symmetrically provided with handles 3.
Further, the scraper spring 15 and the scraper 2 are fixedly installed through screws, and the eraser 1 and the scraper spring 15 are fixedly installed through screws.
Further, the auxiliary port 14 is closely fitted to the surface of the indication rod 12.
The working principle and the using process of the utility model are as follows: when the blackboard eraser 1 faces the gathered lumps on the blackboard, the auxiliary column 4 is firstly screwed out of the fixing opening 16, the scraper blade spring 15 ejects the scraper blade 2 through elastic potential energy at the moment, and then the gathered lumps can be scraped.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a teaching aid for colleges and universities classroom, includes blackboard eraser (1), its characterized in that: the blackboard eraser is characterized in that the blackboard eraser (1) is symmetrically provided with scraper grooves (17), scraper springs (15) are symmetrically arranged in the blackboard eraser (1), scrapers (2) are fixedly arranged at the tops of the scraper springs (15), the scrapers (2) are matched with the scraper grooves (17) for use, auxiliary columns (4) are symmetrically and spirally combined on two sides of the blackboard eraser (1), and each scraper (2) is provided with a fixing port (16) matched with the auxiliary column (4) for use.
2. A teaching aid for college classes according to claim 1, which is characterized in that: seted up supplementary circular slot (9) in blackboard eraser (1), movable mounting has screw thread post (11) in supplementary circular slot (9), screw thread post (11) one end fixed mounting has anticreep piece (10), screw thread post (11) other end fixed mounting has indicator lever (12), blackboard eraser (1) one side fixed mounting has supplementary ring (7), supplementary mouthful (14) have been seted up on supplementary ring (7), screw hole (13) that cooperate with screw thread post (11) are seted up in blackboard eraser (1), indicator lever (12) one end fixed mounting has supplementary piece (5), supplementary piece (5) one end fixed mounting has cushion (8).
3. A teaching aid for college classes according to claim 1, which is characterized in that: the blackboard eraser is characterized in that an auxiliary erasing block (6) is fixedly arranged at the top of the blackboard eraser (1), and grips (3) are symmetrically arranged on the blackboard eraser (1).
4. A teaching aid for college classes according to claim 1, which is characterized in that: the blackboard eraser is characterized in that the scraper spring (15) and the scraper (2) are fixedly installed through screws, and the blackboard eraser (1) and the scraper spring (15) are fixedly installed through screws.
5. A teaching aid for college classes according to claim 2, characterized in that: the auxiliary port (14) is tightly attached to the surface of the indicating rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121271243.0U CN215435781U (en) | 2021-06-08 | 2021-06-08 | Teaching aid for classroom of colleges and universities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121271243.0U CN215435781U (en) | 2021-06-08 | 2021-06-08 | Teaching aid for classroom of colleges and universities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215435781U true CN215435781U (en) | 2022-01-07 |
Family
ID=79710208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121271243.0U Expired - Fee Related CN215435781U (en) | 2021-06-08 | 2021-06-08 | Teaching aid for classroom of colleges and universities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215435781U (en) |
-
2021
- 2021-06-08 CN CN202121271243.0U patent/CN215435781U/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: 20220107 |