CN202345204U - Hand-held dust-absorbing blackboard eraser - Google Patents
Hand-held dust-absorbing blackboard eraser Download PDFInfo
- Publication number
- CN202345204U CN202345204U CN201120470723XU CN201120470723U CN202345204U CN 202345204 U CN202345204 U CN 202345204U CN 201120470723X U CN201120470723X U CN 201120470723XU CN 201120470723 U CN201120470723 U CN 201120470723U CN 202345204 U CN202345204 U CN 202345204U
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- dust
- shell
- closed cavity
- handle
- hand
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Abstract
The utility model relates to a hand-held dust-absorbing blackboard eraser. The hand-held dust-absorbing blackboard eraser comprises a casing, wherein a handle is hinged with one side of the casing; a return spring connected with the casing is arranged on the handle; the other end of the handle is connected with a rack; the rack is meshed with at least a primary gear mechanism in the casing; the gear mechanism is connected with a blade arranged in a small closed cavity in the casing through an overrunning clutch; the small closed cavity corresponds to hairbrushes on the casing; and a hole communicated with the small closed cavity is formed in the root part of the hairbrushes. When the handle is held by hand, the gear is driven by the rack on the handle to rotate; and the small blade is driven by the overrunning clutch to rotate and the generated air sucking force sucks dust into a dust accommodation box. According to the hand-held dust-absorbing blackboard eraser, dust can be effectively collected, and thus the body health of students and teachers is ensured; and the hand-held dust-absorbing blackboard eraser is low in manufacturing cost, energy-saving, environment-friendly and favorable for popularization.
Description
Technical field
The utility model relates to a kind of office appliance, especially a kind of hand held dust-sucking eraser.
Background technology
Two kinds of blackboard erasers are arranged in the market: a kind of common blackboard eraser, another kind is an electric eraser, electric eraser consume electric power production cost is high, and limitation is arranged in marketing; Dust disorderly flew when common blackboard eraser used, and the user sucks dust easily, is unfavorable for healthy.
Summary of the invention
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art, a kind of hand held dust-sucking eraser is provided, and this blackboard eraser cost is low, easy to use, can effectively collect dust, guarantees the healthy of teachers and students, and energy-conserving and environment-protective help promoting.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of hand held dust-sucking eraser comprises shell, the hinged leader of said shell one side; Handle is provided with the back-moving spring that links to each other with shell; The handle other end connects a tooth bar, the gear mechanism of the one-level at least engagement in tooth bar and the shell, gear mechanism through freewheel clutch be arranged at shell in little closed cavity in blade link to each other; Little closed cavity is corresponding with the hairbrush on the shell, and the hairbrush root is provided with the hole that communicates with little closed cavity.
Said tooth bar is curved.
Said little closed cavity is " protruding " font, and its bossing cavity becomes cylindrical, and said blade is arranged in this circular cylindrical cavity.
Said little closed cavity is provided with the some and extraneous dirt filtrating screen that communicates, and little closed cavity communicates with the interior dust receiver of shell, and the dust receiver is provided with dust-removing cover.
The shell of said hairbrush periphery is provided with rubber weather strip.
The utility model is moulded to be cuboid, and drive part adopts hand held to drive, and produces the whole dust exhaust apparatus of power drive through people's grip hand.Dust exhaust apparatus utilizes the blade rotation to produce suction work.When human is held its handle that protrudes; Rack drives gear on the handle rotates; Select the two-stage gear graduation for use for improving rotating speed, in order to prevent reversing, the motion that gear transmitted is at first through a freewheel clutch; When vanelets rotates in the cylindrical cavity of sealing, can produce air suction dust is sucked in the dust receiver.Air can be discharged through dirt filtrating screen, opens dust-removing cover and can the dust of collecting be poured out, and around the blackboard eraser sealing strip is housed, and has effectively prevented the leakage of dust.The back-moving spring handle that can reset, the action that makes things convenient for the people to hold.
Compared with prior art, the beneficial effect of the utility model is, the grip when the utility model relies on the people to erase the board produces power, can effective collection to dust, thereby guaranteed the healthy of teachers and students, its cost is low, energy-conserving and environment-protective help promoting.
Description of drawings
Fig. 1 is the utility model contour structures sketch map;
Fig. 2 is the utility model cross-sectional view;
1 tooth bar wherein, 2 gear I, 3 gear II, 4 gear III, 5 freewheel clutches, 6 blades, 7 dirt filtrating screen I, 8 shells, 9 hairbrush, 10 rubber weather strips, 11 dust-removing covers, 12 dirt filtrating screen II, 13 handles, 14 back-moving springs, 15. little closed cavities.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Like Fig. 1, shown in 2; A kind of hand held dust-sucking eraser comprises shell 8, the hinged leader 13 of said shell 8 one sides; Handle 13 is provided with the back-moving spring 14 that links to each other with shell 8; Handle 13 other ends connect an arc-shaped rack 1, the two-stage gear mechanisms engagement in tooth bar 1 and the shell 8, the two-stage gear mechanism through freewheel clutch 5 be arranged at shell 8 in little closed cavity 15 in blades 6 link to each other; Little closed cavity 15 is corresponding with the hairbrush 9 on the shell 8, and the hairbrush root is provided with the hole that communicates with little closed cavity 15.The two-stage gear mechanism comprises coaxial gear I2 and gear II3, gear I2 and arc-shaped rack 1 engagement, and gear II3 is meshed with gear III4, and the axle of gear III4 is provided with freewheel clutch 5.
Little closed cavity 15 is " protruding " font, and its bossing cavity is cylindrical, and said blade 6 is arranged in this circular cylindrical cavity.Little closed cavity 15 is provided with and extraneous dirt filtrating screen I7 and the dirt filtrating screen II12 that communicates, and little closed cavity 15 communicates with the interior dust receiver of shell, and the dust receiver is provided with dust-removing cover 11.The shell 8 of hairbrush 9 peripheries is provided with rubber weather strip 10.
The people holds housing 8 during use, and back and forth the crocus person's handwriting refers to hold handle 13 with four simultaneously; This hour rack 1 can will move through gear I2 and gear II3, gear III4 and freewheel clutch 5 pass to vanelets 6; Vanelets 6 rotations produce suction the flying dust that dances in the air are sucked, and air can be discharged through dirt filtrating screen I7 and dirt filtrating screen II12, open dust-removing cover 11 and can the dust of collecting be poured out; Rubber weather strip 10 has effectively prevented the dust side leakage; Freewheel clutch 5 can ensure vanelets only to a direction rotation, back-moving spring 14 handle that can reset, the action that makes things convenient for the people to hold.
Claims (5)
1. a hand held dust-sucking eraser comprises shell, it is characterized in that; The hinged leader of said shell one side, handle is provided with the back-moving spring that links to each other with shell, and the handle other end connects a tooth bar; The gear mechanism of one-level at least engagement in tooth bar and the shell; Gear mechanism through freewheel clutch be arranged at shell in closed cavity in blade link to each other, closed cavity is corresponding with the hairbrush on the shell, and the hairbrush root is provided with the hole that communicates with closed cavity.
2. hand held dust-sucking eraser according to claim 1 is characterized in that, said tooth bar camber.
3. hand held dust-sucking eraser according to claim 2 is characterized in that, said closed cavity is " protruding " font, and its bossing cavity is cylindrical, and said blade is arranged in this circular cylindrical cavity.
4. hand held dust-sucking eraser according to claim 3 is characterized in that, said closed cavity is provided with the some and extraneous dirt filtrating screen that communicates, and closed cavity communicates with the interior dust receiver of shell, and the dust receiver is provided with dust-removing cover.
5. hand held dust-sucking eraser according to claim 4 is characterized in that, the shell of said hairbrush periphery is provided with rubber weather strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120470723XU CN202345204U (en) | 2011-11-23 | 2011-11-23 | Hand-held dust-absorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120470723XU CN202345204U (en) | 2011-11-23 | 2011-11-23 | Hand-held dust-absorbing blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202345204U true CN202345204U (en) | 2012-07-25 |
Family
ID=46534230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120470723XU Expired - Fee Related CN202345204U (en) | 2011-11-23 | 2011-11-23 | Hand-held dust-absorbing blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202345204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144476A (en) * | 2013-03-04 | 2013-06-12 | 河北工业大学 | Automatic dust collection type blackboard eraser |
| CN105882268A (en) * | 2016-04-12 | 2016-08-24 | 宿州学院 | Blackboard eraser good in adaptability |
-
2011
- 2011-11-23 CN CN201120470723XU patent/CN202345204U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144476A (en) * | 2013-03-04 | 2013-06-12 | 河北工业大学 | Automatic dust collection type blackboard eraser |
| CN105882268A (en) * | 2016-04-12 | 2016-08-24 | 宿州学院 | Blackboard eraser good in adaptability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20131123 |