CN2242799Y - Electric dustless blackboard eraser - Google Patents
Electric dustless blackboard eraser Download PDFInfo
- Publication number
- CN2242799Y CN2242799Y CN 95227380 CN95227380U CN2242799Y CN 2242799 Y CN2242799 Y CN 2242799Y CN 95227380 CN95227380 CN 95227380 CN 95227380 U CN95227380 U CN 95227380U CN 2242799 Y CN2242799 Y CN 2242799Y
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- blackboard
- eraser
- microscler
- 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 relates to an electric dustless blackboard eraser, which comprises a blackboard eraser, a dust-absorbing device and a dust-collecting device, wherein, the blackboard eraser is formed by a small dust-absorbing eraser being clipped on the long blackboard eraser. The long blackboard eraser is fixed to the guide rail of the blackboard framework through a pulley wheel, and the dust-absorbing device is composed of a motor driving a blower. The closing of the air door of the blower is controlled by a switch, and when pulling the long blackboard eraser left and right, the chalk handwriting on the whole blackboard can be erased quickly, and the chalk dust is absorbed. The purposes of high speed, flexibility and no dust are achieved by using the small dust-absorbing eraser to erase the local chalk handwriting.
Description
The utility model relates to a kind of dust absorption blackboard eraser, belongs to stationery category.
Existing blackboard eraser is generally manual eraser, promptly wipes the pen touch of putting on powder repeatedly by manual mode of operation, and it not only requires great effort, time-consuming, and dust from flying, and contaminated environment has a strong impact on the health of teacher and student.Also occurred some electric blackboard erasers in the market, a class is an electronic small blackboard brush, and speed is fast when using in office, but it is not high to wipe when smearing efficient on a large scale; Another kind of is the blackboard erasing machine that complex structure can be used for the erasing of monoblock blackboard, but trouble during local the use, the underaction practicality.
The purpose of this utility model provide a kind of can wipe monoblock blackboard word rapidly again can be flexibly, local electric blackboard eraser that use and that have dust exhaust apparatus.
The utility model is mainly realized by following technical proposal:
The utility model mainly comprises: blackboard brush, vacuum part, control of dust part, blackboard brush is made of a microscler blackboard eraser and a little absorbent brush, be fixed on microscler blackboard eraser on the guide rail of blackboard framework by truckle, blocking a little absorbent brush on the microscler blackboard eraser, microscler blackboard eraser comprises a rod shape hairbrush and a fan housing, little absorbent brush comprises a common suede brush and a fan housing, and be with one section ventilation duct, the vacuum part is made up of motor band blower fan, and can change the air door direction by switch, control of dust partly is mainly a dust storage box, is covered with screen pack around the dust storage box.
The utility model is compared with prior art, and is not only laborsaving, save time, effectively dustproof, and can use little absorbent brush and microscler blackboard eraser flexibly, convenient and practical,
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the A-A cutaway view of the utility model after amplifying.
As shown in Figure 1, the utility model is fixed on a microscler blackboard eraser (4) on the guide rail (2) of blackboard framework (1) by some truckles (3) up and down, and microscler blackboard eraser (4) is gone up card a little absorbent brush (5).Motor (10) is connecting a blower fan (9) by pinion 8), gear wheel (7) links to each other with microscler blackboard eraser (4), little absorbent brush (5) directly links to each other with blower fan (9).
As shown in Figure 2, microscler blackboard eraser of the present utility model (4) comprises a rod shape hairbrush (11) and a fan housing (12).Little absorbent brush (5) comprises a common suede brush (14) and a fan housing (13), and has ventilation duct (16).Open respectively to fan housing (12) and ventilation duct (16) two air doors (18) of blower fan (9), (19), and it is closed by switch (17) and controls.
When opening switch (17), air door (18) is opened, air door (19) is closed, motor (10) drives blower fan (9) high-speed motion, pinion (8) the drive gear wheel (7) that is connected on the motor (10) causes that rod shape hairbrush (11) rotates, when rod shape hairbrush (11) contact blackboard rotates chalk dust is wiped down, because blower fan (9) high speed rotating makes and produces negative pressure in the fan housing (12), wind sucks from the break joint of fan housing (12) and blackboard from outside to inside fast, direct sending is to dust storage box (6), dust storage box (6) is that screen pack (20) is made on every side, and chalk dust is not leaked.
When closing switch (17), air door (18) is closed, and air door (19) is opened, pick up little absorbent brush (5), contact-making switch (15) is opened automatically, and motor (10) is rotated, when wiping local letter written with chalk, air is brushed (14) from common suede and is sucked on every side, in ventilation duct (16) sucks dust storage box (6).
Claims (4)
1, a kind of electric dust-less blackboard is wiped, comprise blackboard eraser, dust exhaust apparatus, dust collect plant, it is characterized in that: blackboard eraser is stuck in a microscler blackboard eraser (4) by a little absorbent brush (5) and goes up formation, microscler blackboard eraser (4) is fixed on the guide rail (2) of blackboard framework (1) by pulley (3), microscler blackboard eraser (4) is being connected same blower fan (9) with little absorbent brush (5), blower fan (9) has two air doors (18) (19), air door (18) (19) connects a gauge tap (17), connects dust storage box (6) under the air door (18) (19).
2, wipe according to claims 1 described electric dust-less blackboard, it is characterized in that: microscler blackboard eraser (4) is made of rod shape hairbrush (11) and fan housing (12).
3, wipe according to claims 1 or 2 described electric dust-less blackboards, it is characterized in that: little absorbent brush (5) is brushed (14) by common suede and is constituted with fan housing (13).
4, according to claims 3 described electric dustless erasers, it is characterized in that: dust storage box (6) has screen pack (20) all around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227380 CN2242799Y (en) | 1995-11-24 | 1995-11-24 | Electric dustless blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227380 CN2242799Y (en) | 1995-11-24 | 1995-11-24 | Electric dustless blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242799Y true CN2242799Y (en) | 1996-12-18 |
Family
ID=33873255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227380 Expired - Fee Related CN2242799Y (en) | 1995-11-24 | 1995-11-24 | Electric dustless blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242799Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120397A (en) * | 2010-12-30 | 2011-07-13 | 重庆市巴县中学校 | Blackboard |
| CN113459703A (en) * | 2021-07-30 | 2021-10-01 | 山东第一医科大学第二附属医院 | Accounting data processing device |
-
1995
- 1995-11-24 CN CN 95227380 patent/CN2242799Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120397A (en) * | 2010-12-30 | 2011-07-13 | 重庆市巴县中学校 | Blackboard |
| CN113459703A (en) * | 2021-07-30 | 2021-10-01 | 山东第一医科大学第二附属医院 | Accounting data processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |