CN210553813U - Teaching blackboard with blackboard eraser - Google Patents
Teaching blackboard with blackboard eraser Download PDFInfo
- Publication number
- CN210553813U CN210553813U CN201920775452.5U CN201920775452U CN210553813U CN 210553813 U CN210553813 U CN 210553813U CN 201920775452 U CN201920775452 U CN 201920775452U CN 210553813 U CN210553813 U CN 210553813U
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- China
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- blackboard
- eraser
- blackboard eraser
- vertical
- teaching
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Abstract
The utility model discloses a blackboard is used in teaching of taking blackboard eraser, including blackboard, horizontal slide bar and vertical blackboard eraser, horizontal slide bar includes two and erects the upper and lower both sides in the blackboard respectively, the slide bar base of fixing on the wall body is connected respectively at horizontal slide bar both ends, be equipped with the blackboard eraser slider on the horizontal slide bar respectively, be equipped with respectively in the blackboard eraser slider with horizontal slide bar matched with gyro wheel, be connected with vertical blackboard eraser between the blackboard eraser slider, it is the arc casing to be close to blackboard one side on the vertical blackboard eraser, arc casing both sides are equipped with the wiping cloth respectively, on the vertical blackboard eraser and evenly be equipped with the vent between the wiping cloth, the lower part is equipped with the air exhauster in the vertical blackboard eraser, the lower part is equipped with the ash collecting box in the vertical blackboard eraser, keep away from blackboard one side middle part on the vertical blackboard eraser and be. The utility model overcomes prior art shortcoming, it is rational in infrastructure, the cost is lower, and artifical drawing laborsaving and clean effectually, the dust absorption environmental protection.
Description
Technical Field
The utility model relates to a teaching technical field specifically indicates a blackboard is used in teaching of taking blackboard eraser.
Background
The blackboard eraser is very extensive in the use of teaching, blackboard eraser simple structure commonly used at present, generally be the rectangle structure, in the in-service use, when wiping the chalk word on the blackboard, need rock the extension arm, the chalk ash of wiping the blackboard production simultaneously is inhaled too much by the human body, arouse teacher's student respiratory disease, in the blackboard of current band board eraser, mostly be motor drive, when increasing the cost and wiping the blackboard simultaneously, electronic hard control pushes down, it is not good to wipe blackboard quality effect, the above problem is urgent to treat the improvement.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome prior art shortcoming, provide a blackboard for teaching of taking the blackboard eraser, rational in infrastructure, the cost is lower, and the manual work is drawn laborsavingly and is cleaned effectually, dust absorption environmental protection.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a blackboard for teaching of taking blackboard eraser, includes blackboard, horizontal slide bar and vertical blackboard eraser, horizontal slide bar includes that two just erect in the upper and lower both sides of blackboard respectively, the slide bar base of fixing on the wall body is connected respectively at horizontal slide bar both ends, be equipped with the blackboard eraser slider on the horizontal slide bar respectively, be equipped with respectively in the blackboard eraser slider with horizontal slide bar matched with gyro wheel, be connected with vertical blackboard eraser between the blackboard eraser slider, be equipped with the cavity in the vertical blackboard eraser, it is the arc casing to be close to blackboard one side on the vertical blackboard eraser, arc casing both sides are equipped with the wiping cloth respectively, evenly be equipped with the vent on the vertical blackboard eraser and between the wiping cloth, lower part is equipped with the air exhauster in the vertical blackboard eraser, lower part is equipped with the collection ash box in the vertical blackboard eraser, keep away from blackboard one side middle part on the.
As an improvement, a fan-shaped stop block is arranged at the hinged position of the top of the vertical blackboard eraser and the blackboard eraser sliding block, a fan-shaped blocking groove matched with the fan-shaped stop block is arranged on the blackboard eraser sliding block, the cross sectional area of the fan-shaped blocking groove is larger than that of the fan-shaped stop block, and the limit position of the vertical blackboard eraser during overturning is limited.
As an improvement, the bottom of the vertical blackboard eraser is connected with a rotating pipe, a fixed half gear disc is arranged in the bottom of the vertical blackboard eraser, a rotating pull rod is arranged in the rotating pipe, buckling teeth are arranged at the bottom end of the rotating pull rod and matched with the half gear disc, a spring is arranged on the rotating pull rod and between the buckling teeth and the top of the rotating pipe, the upper end of the rotating pull rod is connected with a rotating pull ring, the rotating angle of the rotating pull rod can be adjusted according to the thickness of wiping cloth, and therefore the best wiping effect is achieved, and meanwhile, the rotating angle of the vertical blackboard eraser is locked, so that the blackboard can not rotate in the process of wiping.
As an improvement, the wiping cloth and the vertical blackboard eraser are connected in a sticking way, so that the connection is firm and the replacement is convenient.
As the improvement, the ash collecting box is set to be of a drawer type, the inlet at the upper part of the ash collecting box is arranged at the outlet of the exhaust fan, the ash collecting box is convenient to dump, and the ash collecting effect is better.
As an improvement, one side of the slide bar base, which is close to the eraser slide block, is provided with a buffer spring, so that a person is prevented from generating large collision force when pulling, and the buffer is relieved to avoid damaging equipment.
As an improvement, chalk boxes are respectively arranged on the sliding rod bases on two sides of the lower portion of the blackboard, and therefore chalk can be conveniently taken and placed.
Compared with the prior art, the utility model the advantage lie in: the rotation pull rod can lock the rotation angle of the vertical blackboard eraser, so that the blackboard eraser is convenient for a left or right hander to use, and is not easy to rotate in the use process; the arranged roller and the sliding rod are matched with each other, so that friction in the pulling process can be reduced, and labor is saved; the arranged exhaust fan, the dust collecting box and the ventilation opening can effectively collect chalk dust generated by the blackboard eraser, and reduce pollution and damage to health. The whole device is reasonable in structure, labor-saving and convenient to use, high in blackboard erasing efficiency, firm in structure, convenient to use and suitable for wide popularization and use, and damage to a human body caused by chalk dust is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the top position of the middle vertical blackboard eraser of the present invention.
Fig. 3 is a schematic structural diagram of the bottom position of the middle vertical blackboard eraser of the present invention.
Fig. 4 is a schematic structural view of the position of the lower exhaust fan of the middle vertical blackboard eraser of the present invention.
As shown in the figure: 1. blackboard, 2, horizontal slide bar, 3, vertical blackboard eraser, 4, slide bar base, 5, blackboard eraser slider, 6, gyro wheel, 7, cavity, 8, wiping cloth, 9, vent, 10, air exhauster, 11, dust collecting box, 12, blackboard eraser handle, 13, fan-shaped dog, 14, fan-shaped groove, 15, rotating tube, 16, semi-gear disc, 17, rotation pull rod, 18, buckle tooth, 19, spring, 20, rotation pull ring, 21, buffer spring, 22, chalk box.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
When the utility model is implemented specifically, the blackboard with the blackboard eraser for teaching comprises a blackboard 1, a transverse sliding rod 2 and a vertical blackboard eraser 3, wherein the transverse sliding rod 2 comprises two sliding rod bases 4 which are respectively erected at the upper side and the lower side of the blackboard 1, the two ends of the transverse sliding rod 2 are respectively connected and fixed on a wall body, the transverse sliding rod 2 is respectively provided with an eraser sliding block 5, the eraser sliding block 5 is respectively internally provided with a roller 6 which is matched with the transverse sliding rod 2, the vertical blackboard eraser 3 is connected between the eraser sliding blocks 5, a cavity 7 is arranged in the vertical blackboard eraser 3, one side of the vertical blackboard eraser 3 close to the blackboard 1 is an arc-shaped shell, the two sides of the arc-shaped shell are respectively provided with cleaning cloths 8, the vertical blackboard eraser 3 is evenly provided with vent holes 9 between the cleaning cloths 8, the lower part in the vertical blackboard eraser 3 is provided with an exhaust fan 10, the lower part in the vertical blackboard eraser, the middle part of one side of the vertical blackboard eraser 3, which is far away from the blackboard 1, is provided with an eraser handle 12.
The hinged part of the top of the vertical blackboard eraser 3 and the blackboard eraser sliding block 5 is provided with a fan-shaped stop dog 13, the blackboard eraser sliding block 5 is provided with a fan-shaped blocking groove 14 matched with the fan-shaped stop dog 13, and the cross section area of the fan-shaped blocking groove 14 is larger than that of the fan-shaped stop dog 13.
The bottom of the vertical blackboard eraser 3 is connected with a rotating pipe 15, a fixed half gear disc 16 is arranged in the bottom of the vertical blackboard eraser 3, a rotating pull rod 17 is arranged in the rotating pipe 15, buckling teeth 18 are arranged at the bottom end of the rotating pull rod 17, the buckling teeth 18 are matched with the half gear disc 16, a spring 19 is arranged on the rotating pull rod 17 and between the buckling teeth 18 and the top of the rotating pipe 15, and the upper end of the rotating pull rod 17 is connected with a rotating pull ring 20.
The blackboard eraser is characterized in that the wiping cloth 8 and the vertical blackboard eraser 3 are connected through pasting, the ash collection box 11 is arranged into a drawer type, an upper inlet of the ash collection box 11 is arranged at an outlet of the exhaust fan 10, one side of the slide rod base 4, which is close to the blackboard eraser slide block 5, is provided with a buffer spring 21, and the slide rod bases 4 on two sides of the lower portion of the blackboard 1 are respectively provided with a chalk box 22.
The utility model discloses a theory of operation: during the use, if pulling from a left side to a right side, carrying and pulling and rotating the pull ring 20, the buckle tooth 18 rises, rotates 3 angles of vertical blackboard eraser right sides, loosens and rotates the pull ring 20, and buckle tooth 18 buckle is fixed at half gear dish 16, and the wiping cloth 8 and the 1 face contact of blackboard on right side, and horizontal pulling blackboard eraser handle 12 wipes blackboard 1, and air exhauster 10 convulsions are followed vent 9 and are inhaled chalk dust, collect in the collection ash box 11.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (7)
1. The utility model provides a take blackboard for teaching of blackboard eraser, includes blackboard (1), horizontal slide bar (2) and vertical blackboard eraser (3), its characterized in that: the blackboard eraser is characterized in that the transverse sliding rods (2) comprise two sliding rod bases (4) which are erected on the upper side and the lower side of the blackboard (1) respectively, the two ends of each transverse sliding rod (2) are connected with and fixed on a wall body respectively, the transverse sliding rods (2) are provided with eraser sliding blocks (5) respectively, idler wheels (6) matched with the transverse sliding rods (2) are arranged in the eraser sliding blocks (5) respectively, vertical erasers (3) are connected between the eraser sliding blocks (5), cavities (7) are arranged in the vertical erasers (3), an arc-shaped shell is arranged on one side, close to the blackboard (1), of each vertical eraser (3), cleaning cloths (8) are arranged on the two sides of the arc-shaped shell respectively, vent holes (9) are uniformly arranged on each vertical eraser (3) and between the cleaning cloths (8), an exhaust fan (10) is arranged on the lower portion in each vertical eraser (3), and an ash collecting box (11) is arranged, an eraser handle (12) is arranged in the middle of one side of the vertical eraser (3) far away from the blackboard (1).
2. The teaching blackboard with the blackboard eraser according to claim 1, wherein: the blackboard eraser is characterized in that a fan-shaped stop block (13) is arranged at the hinged position of the top of the vertical blackboard eraser (3) and the blackboard eraser sliding block (5), a fan-shaped blocking groove (14) matched with the fan-shaped stop block (13) is arranged on the blackboard eraser sliding block (5), and the cross section area of the fan-shaped blocking groove (14) is larger than that of the fan-shaped stop block (13).
3. The teaching blackboard with the blackboard eraser according to claim 1, wherein: the blackboard eraser is characterized in that a rotating pipe (15) is connected to the bottom of the vertical blackboard eraser (3), a fixed half gear disc (16) is arranged in the bottom of the vertical blackboard eraser (3), a rotating pull rod (17) is arranged in the rotating pipe (15), buckling teeth (18) are arranged at the bottom end of the rotating pull rod (17), the buckling teeth (18) are matched with the half gear disc (16), a spring (19) is arranged on the rotating pull rod (17) and between the buckling teeth (18) and the top of the rotating pipe (15), and the upper end of the rotating pull rod (17) is connected with a rotating pull ring (20).
4. The teaching blackboard with the blackboard eraser according to claim 1, wherein: the wiping cloth (8) is connected with the vertical blackboard eraser (3) in a sticking way.
5. The teaching blackboard with the blackboard eraser according to claim 1, wherein: the ash collecting box (11) is arranged in a drawer type, and the inlet of the upper part of the ash collecting box (11) is arranged at the outlet of the exhaust fan (10).
6. The teaching blackboard with the blackboard eraser according to claim 1, wherein: and one side of the slide bar base (4) close to the eraser slide block (5) is provided with a buffer spring (21).
7. The teaching blackboard with the blackboard eraser according to claim 1, wherein: chalk boxes (22) are respectively arranged on the sliding rod bases (4) on the two sides of the lower portion of the blackboard (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775452.5U CN210553813U (en) | 2019-05-27 | 2019-05-27 | Teaching blackboard with blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775452.5U CN210553813U (en) | 2019-05-27 | 2019-05-27 | Teaching blackboard with blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210553813U true CN210553813U (en) | 2020-05-19 |
Family
ID=70675584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920775452.5U Expired - Fee Related CN210553813U (en) | 2019-05-27 | 2019-05-27 | Teaching blackboard with blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210553813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192978A (en) * | 2020-10-28 | 2021-01-08 | 张亚斌 | Blackboard eraser capable of being overturned for quick and repeated use |
| CN114987090A (en) * | 2022-07-14 | 2022-09-02 | 李照 | English teaching portable writes device |
-
2019
- 2019-05-27 CN CN201920775452.5U patent/CN210553813U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192978A (en) * | 2020-10-28 | 2021-01-08 | 张亚斌 | Blackboard eraser capable of being overturned for quick and repeated use |
| CN114987090A (en) * | 2022-07-14 | 2022-09-02 | 李照 | English teaching portable writes device |
| CN114987090B (en) * | 2022-07-14 | 2024-03-15 | 烟台职业学院 | English teaching portable writing device |
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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 |
Granted publication date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |