CN203046648U - Dustproof blackboard eraser - Google Patents
Dustproof blackboard eraser Download PDFInfo
- Publication number
- CN203046648U CN203046648U CN 201220735935 CN201220735935U CN203046648U CN 203046648 U CN203046648 U CN 203046648U CN 201220735935 CN201220735935 CN 201220735935 CN 201220735935 U CN201220735935 U CN 201220735935U CN 203046648 U CN203046648 U CN 203046648U
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- handle
- shell
- housing
- 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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- Cleaning In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a dustproof eraser. The dustproof eraser solves the problems that dust drifts away anywhere caused by an existing blackboard eraser in the process of erasing traces of chalks and health of both teachers and students is affected. The dustproof blackboard eraser comprises a shell with an inner cavity and a handle which is fixedly arranged at one end of the shell, a plurality of brushing furs are evenly distributed on the bottom surface of the shell, a suction hole which is communicated with the inner cavity of the shell is formed in the central position of each brushing fur, a draught fan and a dust collection box are arranged in the inner cavity of the shell, the draught fan is connected with a power supply device, an air outlet is formed in the top surface of the shell, and a dust filtering membrane is arranged at the air outlet position in a blocking mode. The dustproof blackboard eraser has the advantages of being simple in structure, and strong in practicality. In the process of erasing blackboards, the dustproof blackboard eraser can effectively prevent the dust of the chalk from drifting away, protect the health of both teachers and the students and purify teaching environment. In the meantime, the handle has a certain length, and therefore the traces of the chalk at the upper portion of the blackboard can be conveniently erased or using requirements of the students who are short in height are met.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of dust-proof blackboard eraser.
Background technology
Blackboard eraser plays an important role in teaching process as one of educational aid.But consequent classroom dust pollution is the killer of teachers and students' health, is one of chronic disease that perplexs for a long time teachers and students' health.After chalk dust enters human body, lung, the upper respiratory tract, eyes, ear, skin etc. there is in various degree influence.
The user is in the process of using blackboard eraser all the time, and dust flies away everywhere, contaminated air, and harm teachers and students health influences teaching environment.
The utility model content
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of built-in electronic dust exhaust apparatus that passes through, and is implemented in thus when wiping chalk trace, draws at once and collects dust, reaches the dust-proof blackboard eraser of high-effective dust-removing.
The purpose of this utility model can realize by following technical proposal: a kind of dust-proof blackboard eraser, comprise the housing with inner chamber and the handle that sets firmly housing one end, uniform some bundle bristles on the bottom surface of described housing, it is characterized in that, the suction hole that is communicated with the housing inner chamber is offered in the center of described every bundle bristle, and described housing inner chamber is installed blower fan and dust-collecting box, and described blower fan connects supply unit, the end face of described housing sets out the air port, and described air outlet place retaining is established filter dirt film.
In above-mentioned dust-proof blackboard eraser, be provided with battery cavities in the described handle, described supply unit comprises the battery that is installed in the battery cavities, and described blower fan is connected with battery by electric wire, and be connected in series press button on the electric wire, described press button is installed on the bottom surface of above-mentioned handle.
In above-mentioned dust-proof blackboard eraser, install attaching plug on the described handle, described attaching plug connects above-mentioned battery by electric wire.
In above-mentioned dust-proof blackboard eraser, described housing comprises upper casing and the lower casing that is the clamping fastening, and described bristle is fixedly arranged on the bottom surface of lower casing, and described air outlet is opened on the end face of upper casing, and described upper casing and lower casing snapping surround and form enclosed inner chamber.
Compared with prior art, this dust-proof blackboard eraser is simple in structure, practical; It can effectively stop flying away of chalk dust when wiping blackboard, protection teachers and students health purifies teaching environment; Its handle has certain-length simultaneously, and Convenient scrubber removes the chalk trace on blackboard top or satisfies the shorter classmate's of height user demand.
Description of drawings
Fig. 1 is the planar structure schematic diagram of this dust-proof blackboard eraser.
Among the figure, 1, housing; 2, bristle; 3, press button; 4, handle.
The specific embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this dust-proof blackboard eraser comprises housing 1 and the handle 4 that sets firmly housing 1 one ends, and its middle shell 1 comprises and is upper casing and the lower casing that clamping fastens, and upper casing surrounds the enclosed inner chamber of formation with the lower casing snapping.
The bottom surface of housing 1 namely is on the bottom surface of its lower casing and evenly is covered with some bundle bristles 2, and the suction hole that is communicated with housing 1 inner chamber is offered in the center of every bundle bristle 2.Housing 1 inner chamber is installed blower fan and dust-collecting box, and the end face of housing 1 namely sets out the air port on the end face of its upper casing, and paste retaining admittedly and is provided with filter dirt film at the air outlet place.
Blower fan connects supply unit, be provided with battery cavities in the handle 4, the metal clad conducting strip is all consolidated at the two ends of battery cavities, supply unit specifically comprises the battery that is installed in the battery cavities, blower fan is connected with battery by electric wire, and serial connection press button 3 on the electric wire, press button 3 runs through the bottom surface of handle 4 and exposes its button part.Also install attaching plug on the handle 4, attaching plug is by the metallic conduction sheet in the electric wire connection battery cavities, and then the connection battery.Attaching plug is embedded on the handle 4 by rotating or pushing and plugging the dual mode peace, and keeps concordant with the surface of handle 4 when receiving state.
This dust-proof blackboard eraser in use, press-started press button 3 makes blower fan be communicated with storage battery power supply; Then hand-held handle 4 contacts the while application of force with bristle 2 and wipes chalk trace near blackboard with blackboard, can make the air suction opening that is arranged in bristle 2 centers simultaneously chalk dust be sucked the dust-collecting box of housing 1 inside.
The application of force pulls open and is upper casing and the lower casing that clamping fastens, and the dust-collecting box that just can take out in it carries out the cleaning of dust.Pluck out the attaching plug that is embedded on the handle 4 and be connected with electric socket, can charge to battery.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used housing 1 morely; Bristle 2; Press button 3; Handle 4 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (4)
1. dust-proof blackboard eraser, comprise the housing with inner chamber and the handle that sets firmly housing one end, uniform some bundle bristles on the bottom surface of described housing, it is characterized in that, the suction hole that is communicated with the housing inner chamber is offered in the center of described every bundle bristle, and described housing inner chamber is installed blower fan and dust-collecting box, and described blower fan connects supply unit, the end face of described housing sets out the air port, and described air outlet place retaining is established filter dirt film.
2. dust-proof blackboard eraser according to claim 1, it is characterized in that, be provided with battery cavities in the described handle, described supply unit comprises the battery that is installed in the battery cavities, described blower fan is connected with battery by electric wire, and be connected in series press button on the electric wire, described press button is installed on the bottom surface of above-mentioned handle.
3. dust-proof blackboard eraser according to claim 2 is characterized in that, installs attaching plug on the described handle, and described attaching plug connects above-mentioned battery by electric wire.
4. according to claim 1 or 2 or 3 described dust-proof blackboard erasers, it is characterized in that, described housing comprises upper casing and the lower casing that is the clamping fastening, described bristle is fixedly arranged on the bottom surface of lower casing, described air outlet is opened on the end face of upper casing, and described upper casing and lower casing snapping surround and form enclosed inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735935 CN203046648U (en) | 2012-12-27 | 2012-12-27 | Dustproof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735935 CN203046648U (en) | 2012-12-27 | 2012-12-27 | Dustproof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203046648U true CN203046648U (en) | 2013-07-10 |
Family
ID=48729639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735935 Expired - Fee Related CN203046648U (en) | 2012-12-27 | 2012-12-27 | Dustproof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203046648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112233476A (en) * | 2020-09-05 | 2021-01-15 | 常州工学院 | Multimedia teaching equipment based on thing networking |
-
2012
- 2012-12-27 CN CN 201220735935 patent/CN203046648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112233476A (en) * | 2020-09-05 | 2021-01-15 | 常州工学院 | Multimedia teaching equipment based on thing networking |
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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: 20130710 Termination date: 20131227 |