CN205871577U - Dust -free type blackboard eraser - Google Patents
Dust -free type blackboard eraser Download PDFInfo
- Publication number
- CN205871577U CN205871577U CN201620294189.4U CN201620294189U CN205871577U CN 205871577 U CN205871577 U CN 205871577U CN 201620294189 U CN201620294189 U CN 201620294189U CN 205871577 U CN205871577 U CN 205871577U
- Authority
- CN
- China
- Prior art keywords
- dust
- shell
- collecting cavity
- power supply
- baffle
- 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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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a dust -free type blackboard eraser, includes shell (1), the brush body (2), dust collector (3), switch (4), its characterized in that: dust collector (3) set up in the inside of shell (1), shell (1) side is located in switch (4), shell (1) is inside is separated for dust collection compartment (12) and device compartment (13) by first baffle (11), and open shell (1) the side that links to each other with dust collection compartment (12) has air inlet (14), and open shell (1) the side that links to each other with device compartment (13) has gas vent (15), the position that is close to first baffle (11) in dust collection compartment (12) is equipped with dust filter (31), be equipped with intake duct (331) on first plate washer (11), intake duct (331) rear portion links to each other with fan (32) air inlet, fan (32) gas vent is connected with exhaust passage (332) front end, exhaust passage (332) rear end is connected with second baffle (34), fan (32) are including impeller assembly (321) and motor (322), motor (322) are connected with power (35). The utility model discloses simple structure, it is convenient to make.
Description
Technical field
This utility model relates to a kind of realia, the blackboard eraser of use during a kind of writing on the blackboard, and specifically one
Plant the dust-free blackboard eraser that teacher can be played a protective role.
Background technology
It is known that teacher needs substantial amounts of use to write writing on the blackboard respectively in teaching process, writing on the blackboard can make students
Preferably grasp the knowledge taught, the main points of clear study, but, can produce big during using blackboard eraser to erase the board
The chalk dust of amount, brings serious threat to the health of instructors, results even in some pulmonary disease, how to reduce dust
The actual bodily harm brought to instructors becomes a problem to be solved.
Utility model content
The purpose of this utility model is the problem easily damaged the health of teacher for ordinary blackboard eraser, design one
In use will not produce the dust-free blackboard eraser of dust.
The technical solution of the utility model is:
A kind of dust-free blackboard eraser, including shell 1, brush body 2, dust arrester 3, switch 4, it is characterised in that: described dedusting
Device 3 is arranged at the inside of shell 1, and shell 1 side is located at by described switch 4, and described brush body 2 is connected with shell 1 bottom；Outside described
Shell 1 is internal is divided into dust-collecting cavity 12 and equipment cavity 13 by the first baffle plate 11, and shell 1 side being connected with dust-collecting cavity 12 has air inlet
Mouth 14, shell 1 side being connected with equipment cavity 13 has air vent 15；Described dust arrester 3 includes dust filtration device 31, blower fan
32, air flue 33, second baffle 34, power supply 35, in described dust-collecting cavity 12, the position near the first baffle plate 11 is provided with dust filtration device 31,
Described first plate washer 11 is provided with air intake duct 331, and described air intake duct 331 rear portion is connected with blower fan 32 air inlet, described blower fan 32
Air vent is connected with exhaust duct 332 front end, and described exhaust duct 332 rear end is connected with second baffle 34, and described blower fan 32 includes leaf
Wheels 321 and motor 322, described motor 322 is connected with power supply 35.
Described shell 1 is outside also includes that dust-collecting cavity lid 16 and power supply lid 17, described dust-collecting cavity lid 16 are positioned on dust-collecting cavity 12
Portion or sidepiece, described power supply lid 17 is positioned at power supply 35 top or sidepiece.
Described dust-collecting cavity 12 is provided with two for the weight sensor 17 detecting weight of dust, shell 1 is provided with
Corresponding audible-visual annunciator 18, when the dust that weight sensor 19 detects in dust-collecting cavity reaches device value, starts corresponding
Audible-visual annunciator sends sound or passage of scintillation light to provide the timely deashing of user.
The beneficial effects of the utility model:
This utility model can be blacked edges of boards ash disposal dirt with limit, decreases the dust injury to teacher's health.
This utility model simple in construction, easily manufactured.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 be Fig. 1 face structural representation.
The positive plan structure schematic diagram of Fig. 3 Fig. 1.
Detailed description of the invention
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.
As Figure 1-3.
A kind of dust-free blackboard eraser, including shell 1, brush body 2, dust arrester 3, switch 4, as it is shown in figure 1, described dedusting dress
Putting 3 inside (Fig. 2,3) being arranged at shell 1, shell 1 side is located at by described switch 4, and described brush body 2 is connected with shell 1 bottom；
Described shell 1 is internal is divided into dust-collecting cavity 12 and equipment cavity 13 by the first baffle plate 11, shell 1 side opening being connected with dust-collecting cavity 12
Having air inlet 14, shell 1 side being connected with equipment cavity 13 has air vent 15；Described shell 1 hull outside also includes dust
Chamber lid 16 and power supply lid 17, described dust-collecting cavity lid 16 is positioned at dust-collecting cavity 12 top or sidepiece, and described power supply lid 17 is positioned at power supply 35
Top or sidepiece；Described dust arrester 3 includes dust filtration device 31, blower fan 32, air flue 33, second baffle 34, power supply 35, described collection
In dirt chamber 12, the position near the first baffle plate 11 is provided with dust filtration device 31, and described first plate washer 11 is provided with air intake duct 331, described
Air intake duct 331 rear portion is connected with blower fan 32 air inlet, and described blower fan 32 air vent is connected with exhaust duct 332 front end, described aerofluxus
Rear end, road 332 is connected with second baffle 34, and described blower fan 32 includes impeller sets 321 and motor 322, described motor 322 and power supply
35 connect.In order to ensure to inhale non-effect, remove the dust in dust-collecting cavity in time, also can dust-collecting cavity 12 be provided with when being embodied as
Two for detecting weight sensor 19(Fig. 3 of weight of dust), directionless sense when two weight sensors can ensure to use,
Shell 1 is provided with corresponding audible-visual annunciator 18.
During use, opening switch 4 rear motors 322 and switch on power 35 startup impeller sets 321, dust arrester 3 is started working,
During erasing the board, the chalk dust dropped can enter into dust-collecting cavity 12 from air inlet 14, owing to there being the stop of dust filtration device 31,
Dust can exist in dust-collecting cavity 12, without entering in blower fan 32 by air intake duct 331, so can remove and produce when erasing the board
Raw chalk dust, closes swap switch 4 after using, opens dust-collecting cavity lid 16 and can be outwelled by the dust in dust-collecting cavity 12, if
Need charging, be connected in alternating current power supply be charged by power supply 35 after lid 17 can be turned on the power.When weight sensor 19 is examined
Measure the dust in dust-collecting cavity when reaching device value, start corresponding audible-visual annunciator and send sound or passage of scintillation light to provide use
The timely deashing of person.
This utility model is not directed to part and the most same as the prior art prior art maybe can be used to be realized.
Claims (3)
1. a dust-free blackboard eraser, including shell (1), brush body (2), dust arrester (3), switch (4), it is characterised in that: institute
Stating dust arrester (3) and be arranged at the inside of shell (1), described switch (4) is located at shell (1) side, described brush body (2) and shell
(1) bottom is connected；Described shell (1) is internal is divided into dust-collecting cavity (12) and equipment cavity (13) by the first baffle plate (11), with dust
Shell (1) side that chamber (12) is connected has air inlet (14), and shell (1) side being connected with equipment cavity (13) has air vent
(15)；Described dust arrester (3) includes dust filtration device (31), blower fan (32), air flue (33), second baffle (34), power supply (35),
In described dust-collecting cavity (12), the position near the first baffle plate (11) is provided with dust filtration device (31), and described first plate washer (11) is provided with
Air intake duct (331), described air intake duct (331) rear portion is connected with blower fan (32) air inlet, described blower fan (32) air vent and aerofluxus
Road (332) front end connects, and described exhaust duct (332) rear end is connected with second baffle (34), and described blower fan (32) includes impeller sets
(321) and motor (322), described motor (322) is connected with power supply (35).
Dust-free blackboard eraser the most according to claim 1, it is characterised in that described shell (1) is outside also includes dust-collecting cavity lid
(16) and power supply lid (17), described dust-collecting cavity lid (16) is positioned at dust-collecting cavity (12) top or sidepiece, and described power supply lid (17) is positioned at
Power supply (35) top or sidepiece.
Dust-free blackboard eraser the most according to claim 1, it is characterised in that be provided with two use in described dust-collecting cavity (12)
In the weight sensor (19) of detection weight of dust, shell (1) is provided with corresponding audible-visual annunciator (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620294189.4U CN205871577U (en) | 2016-04-11 | 2016-04-11 | Dust -free type blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620294189.4U CN205871577U (en) | 2016-04-11 | 2016-04-11 | Dust -free type blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205871577U true CN205871577U (en) | 2017-01-11 |
Family
ID=57686588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620294189.4U Expired - Fee Related CN205871577U (en) | 2016-04-11 | 2016-04-11 | Dust -free type blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205871577U (en) |
-
2016
- 2016-04-11 CN CN201620294189.4U patent/CN205871577U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180411 |