CN214775079U - Automatic dust collecting blackboard eraser - Google Patents
Automatic dust collecting blackboard eraser Download PDFInfo
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- CN214775079U CN214775079U CN202120980930.3U CN202120980930U CN214775079U CN 214775079 U CN214775079 U CN 214775079U CN 202120980930 U CN202120980930 U CN 202120980930U CN 214775079 U CN214775079 U CN 214775079U
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- dust
- chalk dust
- shell
- fixedly connected
- blackboard eraser
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Abstract
The utility model belongs to the technical field of blackboard erasers, in particular to an automatic dust collecting blackboard eraser, which comprises a shell; a rotating rod is rotatably connected inside the shell; the rotating rod is sleeved with an ash wiping roller; a first dust scraping plate is fixedly connected to the inner side wall of the shell; a first rotating wheel is fixedly connected to the side end of the rotating rod; a second rotating wheel is fixedly connected to the rotating rod; a placing box is arranged at the bottom end of the shell; thereby make a scraping board scrape the chalk dust of wiping the ash cylinder on the surface through the rotation of wiping the ash cylinder, the inside of casing is collected temporarily to the chalk dust of scraping, and a large amount of chalk dust can be saved to the inside of casing, just need clear up the problem of chalk dust after avoiding using several times to reduce the time of frequently clearing up the chalk dust, and then improve mr's teaching progress.
Description
Technical Field
The utility model belongs to the technical field of the blackboard eraser, specific automatic collection grey formula blackboard eraser that says so.
Background
The blackboard eraser is a common teaching tool and is used for erasing writing marks after blackboard writing, and the traditional blackboard eraser needs frequent cleaning of chalk dust.
In the prior art, the traditional blackboard eraser can accumulate chalk dust at the bottom during working, when the blackboard eraser accumulates a large amount of chalk dust, the chalk dust needs to be cleaned, if the chalk dust is not cleaned in time, the continuous working efficiency of the blackboard eraser can be reduced, but frequent cleaning of the blackboard eraser can influence the classroom progress of teachers, and an automatic dust collection type blackboard eraser is provided.
SUMMERY OF THE UTILITY MODEL
In order to compensate prior art's not enough, solve among the prior art at present, traditional blackboard eraser can accumulate the chalk dust in the bottom at the during operation, when the blackboard eraser accumulates a large amount of chalk dust, need clear up the chalk dust, if not in time clear up, the blackboard eraser continues work efficiency and can reduce, but frequent clearance blackboard eraser then can influence the problem of mr's classroom progress, the utility model provides an automatic collection grey formula blackboard eraser.
The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to an automatic dust collecting blackboard eraser, which comprises a shell; a rotating rod is rotatably connected inside the shell; the rotating rod is sleeved with an ash wiping roller; a first dust scraping plate is fixedly connected to the inner side wall of the shell; a first rotating wheel is fixedly connected to the side end of the rotating rod; a second rotating wheel is fixedly connected to the rotating rod; a placing box is arranged at the bottom end of the shell; the inside of casing can save a large amount of chalk dust, avoids using the problem that just need clear up the chalk dust after several to reduce the time of frequent clearance chalk dust.
Preferably, one end of the rotating rod is fixedly connected with a first rotating wheel; the other end of the rotating rod is in threaded connection with a second rotating wheel; a position fixing hole is fixedly connected inside the ash wiping roller; the ash wiping roller is arranged on the rotating rod through the position fixing hole; the ash wiping roller can be conveniently replaced by rotating the second rotating wheel.
Preferably, the inner side wall of the bottom end of the shell is fixedly connected with a second dust scraping plate, and chalk dust on the surface of the dust wiping roller can be cleaned by matching with the first dust scraping plate.
Preferably, an ash discharge port is fixedly connected inside the shell; the ash discharge port is fixedly connected inside the first ash scraping plate; the chalk dust scraped by the second dust scraping plate can be guided by the dust guide plate and discharged through the dust discharging port.
Preferably, an ash guide plate is fixedly connected to the inner side wall of the shell; the dust guide plate can prevent chalk dust from accumulating at the inner corner of the shell.
Preferably, a plurality of groups of friction blocks are fixedly connected to the second rotating wheel; the friction block can increase the frictional force of a rotating wheel, and the sliding condition is avoided when the rotating wheel is rotated.
The utility model has the advantages that:
1. the utility model provides an automatic collection grey formula blackboard eraser makes a dust scraper scrape the chalk dust of wiping grey cylinder on the surface through the rotation of wiping grey cylinder, and the inside of casing is collected temporarily to the chalk dust that scrapes, and a large amount of chalk dust can be saved to the inside of casing, just need clear up the problem of chalk dust after avoiding using several times to reduce the time of frequently clearing up the chalk dust, and then improve mr's teaching progress.
2. The utility model provides an automatic collection grey formula blackboard eraser makes rotary rod and No. two swiveling wheels remove fixedly through rotating No. two swiveling wheels, can take out old grey cylinder of wiping this moment, changes new and wipes grey cylinder, wipes grey cylinder through the change that rotates No. two swiveling wheels can be convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a perspective view of the ash wiping roller according to the first embodiment;
FIG. 3 is a front view of the first embodiment;
FIG. 4 is a cross-sectional view of the first embodiment;
FIG. 5 is a schematic diagram of another embodiment of the structure of the placing box of the first embodiment;
illustration of the drawings:
1. a housing; 21. a dust wiping roller; 22. rotating the rod; 23. a first dust scraping plate; 31. a first rotating wheel; 32. a second rotating wheel; 33. a position-retaining hole; 41. a second dust scraping plate; 42. a friction block; 43. placing the box; 44. a dust guide plate; 45. an ash discharge port; 51. and (4) a groove.
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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example one
Referring to fig. 1-4, an automatic dust collecting blackboard eraser includes a housing 1; a rotating rod 22 is rotatably connected inside the shell 1; the rotating rod 22 is sleeved with an ash wiping roller 21; a first dust scraping plate 23 is fixedly connected to the inner side wall of the shell 1; a first rotating wheel 31 is fixedly connected to the side end of the rotating rod 22; a second rotating wheel 32 is fixedly connected to the rotating rod 22; a placing box 43 is arranged at the bottom end of the shell 1; when the blackboard eraser works, a teacher can hold the top end of the shell 1 by hand to erase a blackboard, the dust erasing roller 21 can rotate on the rotating rod 22, the rotating rod 22 can rotate on the shell 1, when the dust erasing roller 21 rotates to clean chalk dust on the blackboard, the rotation of the dust erasing roller 21 can touch the first dust erasing plate 23, the first dust erasing plate 23 can erase the chalk dust on the surface of the dust erasing roller 21, the chalk dust can be collected in the shell 1, the second dust erasing plate 41 can perform secondary dust erasing on the dust erasing roller 21, the first dust erasing plate 23 can clean the chalk dust on the surface of the dust erasing roller 21, the dust erasing roller 21 can always maintain high-efficiency chalk dust erasing, a large amount of chalk dust can be stored in the shell 1, the problem that the chalk dust needs to be cleaned after being used for several times is avoided, the time for frequently cleaning the chalk dust is shortened, and the teaching progress of the teacher is improved, when a large amount of chalk dust is accumulated in the casing 1, the chalk dust can be poured out through the opening of the casing 1, the chalk dust scraped by the second chalk dust scraping plate 41 can be guided by the chalk dust guiding plate 44 and discharged through the dust discharging port 45, the chalk dust can be prevented from being accumulated at the inner corner of the casing 1 by the chalk dust guiding plate 44, so that the problem that the chalk dust is inconvenient to discharge is caused, the chalk dust on the chalk dust guiding plate 44 can be conveniently discharged through the dust discharging port 45, the chalk dust can be accumulated at the bottom of the traditional blackboard eraser during working, when a large amount of chalk dust is accumulated in the blackboard eraser, the chalk dust needs to be cleaned, the blackboard eraser can continue to work, if the chalk dust is not cleaned in time, the efficiency of the blackboard eraser continuing to work is low, the chalk dust can float in disorder, students can suck a large amount of chalk dust, the body health of the students can be harmed by sucking the chalk dust for a long time, so that the chalk dust needs to be cleaned after the blackboard eraser works, the schedule of the teachers is frequently cleaned, thereby it scrapes the chalk dust on the surface of dust-cleaning roller 21 to make one scraping board 23 through the rotation of dust-cleaning roller 21, the inside of casing 1 is collected temporarily to the chalk dust that scrapes, the inside of casing 1 can save a large amount of chalk dust, avoid using the problem that just need clear up the chalk dust after several times, thereby reduce the time of frequent clearance chalk dust, and then improve mr's teaching progress, after the work of casing 1, can place casing 1 on placing box 43, avoid putting casing 1 at will and lead to the inside chalk dust of casing 1 to flow, influence the health on the podium, increase cleaning work.
One end of the rotating rod 22 is fixedly connected with a first rotating wheel 31; the other end of the rotating rod 22 is in threaded connection with a second rotating wheel 32; a position-fixing hole 33 is fixedly connected inside the ash wiping roller 21; the ash wiping roller 21 is arranged on the rotating rod 22 through a position-retaining hole 33; when needing to be changed and wiping grey cylinder 21, can fix the position of swiveling wheel 31 earlier, rotate No. two swiveling wheels 32 again, because of rotary rod 22 and No. two swiveling wheels 32 are screw-thread fit fixed, so rotate No. two swiveling wheels 32 and remove fixedly, the frictional force of swiveling wheel 31 can be increased to friction block 42, avoid appearing the gliding condition when rotating No. one swiveling wheel 31, friction block 42 can make the rotation that a swiveling wheel 31 is more convenient, remove fixed back roll-off rotary rod 22, take out and wipe grey cylinder 21 this moment, put new ash wiping cylinder 21 in the inside of casing 1 earlier, align rotary rod 22 and position fixing hole 33 again this moment, slip rotary rod 22 again runs through position fixing hole 33, make rotary rod 22 and No. two swiveling wheels 32 pass through screw thread fixing position again.
A second dust scraping plate 41 is fixedly connected to the inner side wall of the bottom end of the shell 1; the rotation of wiping grey cylinder 21 can touch one scraping board 23, and one scraping board 23 can scrape the chalk dust on the surface of wiping grey cylinder 21, and the chalk dust can be collected the inside of casing 1, and No. two scraping boards 41 can carry out the secondary to wiping grey cylinder 21 and scrape the ash, and the cooperation is one and is scraped grey board 23 and can be cleared up the chalk dust of wiping grey cylinder 21 surface, makes wiping grey cylinder 21 can keep efficient the chalk dust of going of wiping always.
An ash discharge port 45 is fixedly connected inside the shell 1; the ash discharge port 45 is fixedly connected inside the first ash scraping plate 23; the chalk dust scraped by the second dust scraping plate 41 can be guided by the dust guide plate 44 and discharged through the dust discharge port 45, the dust guide plate 44 can avoid the accumulation of the chalk dust at the inner corner of the shell 1, so that the problem of inconvenient discharge of the chalk dust is caused, and the dust discharge port 45 can facilitate the discharge of the chalk dust on the dust guide plate 44.
An ash guide plate 44 is fixedly connected to the inner side wall of the shell 1; the dust guide plate 44 can prevent chalk dust from accumulating at the inner corner of the housing 1, which causes inconvenient discharge of the chalk dust, and the dust discharge port 45 can facilitate discharge of the chalk dust on the dust guide plate 44.
A plurality of groups of friction blocks 42 are fixedly connected to the second rotating wheel 32; the friction block 42 can increase the friction force of the first rotating wheel 31, so that the sliding condition can be avoided when the first rotating wheel 31 is rotated, and the friction block 42 can enable the first rotating wheel 31 to rotate more conveniently.
Example two
Referring to fig. 5, in a first comparative example, as another embodiment of the present invention, the groove 51 is fixedly connected inside the placing box 43; during operation, casing 1 is placed on placing box 43, avoids putting the position of casing 1 at will, makes the chalk dust influence the sanitary problem of podium, takes casing 1 work again when needing to clean the blackboard, can be more convenient take out casing 1 through recess 51.
The working principle is as follows: when the blackboard eraser works, a teacher can hold the top end of the shell 1 by hand to erase a blackboard, the dust erasing roller 21 can rotate on the rotating rod 22, the rotating rod 22 can rotate on the shell 1, when the dust erasing roller 21 rotates to clean chalk dust on the blackboard, the rotation of the dust erasing roller 21 can touch the first dust erasing plate 23, the first dust erasing plate 23 can erase the chalk dust on the surface of the dust erasing roller 21, the chalk dust can be collected in the shell 1, the second dust erasing plate 41 can perform secondary dust erasing on the dust erasing roller 21, the first dust erasing plate 23 can clean the chalk dust on the surface of the dust erasing roller 21, the dust erasing roller 21 can always maintain high-efficiency chalk dust erasing, a large amount of chalk dust can be stored in the shell 1, the problem that the chalk dust needs to be cleaned after being used for several times is avoided, the time for frequently cleaning the chalk dust is shortened, and the teaching progress of the teacher is improved, when a large amount of chalk dust is accumulated in the casing 1, the chalk dust can be poured out through the opening of the casing 1, the chalk dust scraped by the second chalk dust scraping plate 41 can be guided by the chalk dust guiding plate 44 and discharged through the dust discharging port 45, the chalk dust can be prevented from being accumulated at the inner corner of the casing 1 by the chalk dust guiding plate 44, so that the problem that the chalk dust is inconvenient to discharge is caused, the chalk dust on the chalk dust guiding plate 44 can be conveniently discharged through the dust discharging port 45, the chalk dust can be accumulated at the bottom of the traditional blackboard eraser during working, when a large amount of chalk dust is accumulated in the blackboard eraser, the chalk dust needs to be cleaned, the blackboard eraser can continue to work, if the chalk dust is not cleaned in time, the efficiency of the blackboard eraser continuing to work is low, the chalk dust can float in disorder, students can suck a large amount of chalk dust, the body health of the students can be harmed by sucking the chalk dust for a long time, so that the chalk dust needs to be cleaned after the blackboard eraser works, the schedule of the teachers is frequently cleaned, the first dust scraping plate 23 scrapes chalk dust on the surface of the dust scraping roller 21 through the rotation of the dust scraping roller 21, the scraped chalk dust is temporarily collected in the shell 1, a large amount of chalk dust can be stored in the shell 1, and the problem that the chalk dust needs to be cleaned after being used for several times is avoided, so that the time for frequently cleaning the chalk dust is shortened, the teaching progress of teachers is improved, after the work of the shell 1 is finished, the shell 1 can be placed on the placing box 43, the phenomenon that the chalk dust in the shell 1 flows out due to the fact that the shell 1 is placed randomly is avoided, the sanitation on a platform is influenced, and the cleaning work is increased; when needing to be changed and wiping grey cylinder 21, can fix the position of swiveling wheel 31 earlier, rotate No. two swiveling wheels 32 again, because of rotary rod 22 and No. two swiveling wheels 32 are screw-thread fit fixed, so rotate No. two swiveling wheels 32 and remove fixedly, the frictional force of swiveling wheel 31 can be increased to friction block 42, avoid appearing the gliding condition when rotating No. one swiveling wheel 31, friction block 42 can make the rotation that a swiveling wheel 31 is more convenient, remove fixed back roll-off rotary rod 22, take out and wipe grey cylinder 21 this moment, put new ash wiping cylinder 21 in the inside of casing 1 earlier, align rotary rod 22 and position fixing hole 33 again this moment, slip rotary rod 22 again runs through position fixing hole 33, make rotary rod 22 and No. two swiveling wheels 32 pass through screw thread fixing position again.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (6)
1. An automatic dust collecting type blackboard eraser is characterized in that: comprises a shell (1); a rotating rod (22) is rotatably connected inside the shell (1); the rotating rod (22) is sleeved with an ash wiping roller (21); a first dust scraping plate (23) is fixedly connected to the inner side wall of the shell (1); a first rotating wheel (31) is fixedly connected to the side end of the rotating rod (22); a second rotating wheel (32) is fixedly connected to the rotating rod (22); the bottom end of the shell (1) is provided with a placing box (43).
2. The automatic dust collecting type blackboard eraser according to claim 1, wherein: one end of the rotating rod (22) is fixedly connected with a first rotating wheel (31); the other end of the rotating rod (22) is in threaded connection with a second rotating wheel (32); a position-fixing hole (33) is fixedly connected inside the ash wiping roller (21); the ash wiping roller (21) is arranged on the rotating rod (22) through a position-retaining hole (33).
3. The automatic dust collecting type blackboard eraser according to claim 2, wherein: and a second dust scraping plate (41) is fixedly connected to the inner side wall of the bottom end of the shell (1).
4. The automatic dust collecting type blackboard eraser according to claim 3, wherein: an ash discharge port (45) is fixedly connected inside the shell (1); the ash discharge port (45) is fixedly connected inside the first ash scraping plate (23).
5. The automatic dust collecting blackboard eraser according to claim 4, wherein: the inner side wall of the shell (1) is fixedly connected with an ash guide plate (44).
6. The automatic dust collecting blackboard eraser according to claim 5, wherein: and a plurality of groups of friction blocks (42) are fixedly connected to the second rotating wheel (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120980930.3U CN214775079U (en) | 2021-05-08 | 2021-05-08 | Automatic dust collecting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120980930.3U CN214775079U (en) | 2021-05-08 | 2021-05-08 | Automatic dust collecting blackboard eraser |
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| Publication Number | Publication Date |
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| CN214775079U true CN214775079U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120980930.3U Active CN214775079U (en) | 2021-05-08 | 2021-05-08 | Automatic dust collecting blackboard eraser |
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| CN (1) | CN214775079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056887A (en) * | 2021-12-21 | 2022-02-18 | 福建恒隆塑胶工业有限公司 | Production and conveying device for cup cover with spoon |
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2021
- 2021-05-08 CN CN202120980930.3U patent/CN214775079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056887A (en) * | 2021-12-21 | 2022-02-18 | 福建恒隆塑胶工业有限公司 | Production and conveying device for cup cover with spoon |
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