CN109047260A - A kind of negative pressure chalk dust absorption device - Google Patents
A kind of negative pressure chalk dust absorption device Download PDFInfo
- Publication number
- CN109047260A CN109047260A CN201810744870.8A CN201810744870A CN109047260A CN 109047260 A CN109047260 A CN 109047260A CN 201810744870 A CN201810744870 A CN 201810744870A CN 109047260 A CN109047260 A CN 109047260A
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- CN
- China
- Prior art keywords
- chalk dust
- collection box
- negative pressure
- chassis
- hole
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2215/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B2215/006—Suction tables
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
一种负压粉笔灰吸除装置，用于对黑板擦擦除粉笔字迹时产生的粉笔灰进行清除,包括：收集盒，用于收集粉笔灰，其底部设置有凹槽，该凹槽用于放置黑板擦；气流生成单元，安装在收集盒上方，用于在收集盒内部形成负压，将粉笔灰与外部空气形成的混合气流共同吸入收集盒内；以及过滤单元，安装在收集盒内，用于对混合气流进行过滤，其中，收集盒还具有底盘、储灰盘、顶盖，底盘的侧壁上设置有至少一个供混合气流通过的底盘通孔，储灰盘可拆卸地固定在底盘上，位于过滤单元的下方，该储灰盘的底部边缘设置有至少一个供混合气流通过的储灰盘通孔，顶盖可拆卸地固定在底盘上，其侧壁上设置有至少一个供过滤后的混合气流通过的顶盖通孔。
A negative pressure chalk dust suction device for removing chalk dust generated when a blackboard eraser erases chalk writing, comprising: a collection box for collecting chalk dust, and a groove is provided at the bottom of the groove for The blackboard eraser is placed; the airflow generation unit is installed above the collection box to form a negative pressure inside the collection box, and the mixed airflow formed by chalk dust and external air is sucked into the collection box together; and the filter unit is installed in the collection box, It is used to filter the mixed air flow, wherein the collection box also has a bottom plate, an ash storage tray and a top cover, and at least one chassis through hole for the mixed air flow to pass is arranged on the side wall of the bottom plate, and the ash storage tray is detachably fixed on the bottom plate On the lower side of the filter unit, the bottom edge of the ash storage tray is provided with at least one ash storage tray through hole for the mixed airflow to pass through, the top cover is detachably fixed on the chassis, and the side wall is provided with at least one for filtering After the mixed air flow through the top cover through hole.
Description
Technical field
The present invention relates to a kind of dust exhaust apparatuses.
Background technique
Traditional blackboard wipe can only merely erasing chalk write trace, the chalk generated in erase process can not be removed
Ash, chalk dust float everywhere, and very big to health hazards by human body sucking respiratory system, chalk dust health caused by teacher is asked
Topic does not obtain effective solution so far.
Summary of the invention
The present invention is to solve the chalk dust that above-mentioned existing blackboard eraser is generated in erasing chalk handwriting and lead to people
The problem of body goes to bits is, and it is an object of the present invention to provide a kind of negative pressure chalk dust absorption device.
Negative pressure chalk dust absorption device provided by the invention generates when for blackboard eraser erasing chalk written trace
Chalk dust is purged characterized by comprising collection box, for collecting chalk dust, fluted, the groove is arranged in bottom
For placing blackboard eraser；Air-flow generation unit is mounted on above collection box, for forming negative pressure inside collection box, by chalk
Ash sucks in collection box jointly with outside air, forms the mixed airflow flowed from collection box bottom to top；And filtering
Unit is mounted in collection box, for being filtered to mixed airflow, wherein collection box also has chassis, storage ash-pan and top
It covers, at least one chassis through-hole passed through for mixed airflow is provided on the side wall on chassis, storage ash-pan is removably attached to bottom
On disk, positioned at the lower section of filter element, the bottom of the storage ash-pan is provided at least one storage ash-pan passed through for mixed airflow
Through-hole, storage ash-pan through-hole are arranged along the bottom margin of storage ash-pan, and top cover is removably attached on chassis, is arranged on side wall
The top cover through-hole for having at least one that filtered mixed airflow is supplied to pass through.
Negative pressure chalk dust absorption device provided by the invention, can also have the feature that, it is characterised in that: wherein,
Chassis through-hole is located at the lower end of the side wall on chassis.
Negative pressure chalk dust absorption device provided by the invention, can also have the feature that, it is characterised in that: wherein,
Storage ash-pan through-hole is located on position corresponding with chassis through-hole.
Negative pressure chalk dust absorption device provided by the invention, can also have the feature that, it is characterised in that: wherein,
The setting of top cover through-hole is located at below air-flow generation unit in side corresponding with air-flow generation unit.
Negative pressure chalk dust absorption device provided by the invention, can also have the feature that, it is characterised in that: wherein,
Air-flow generation unit includes hand shell, motor, the impeller being mounted on motor, power supply and switch, and hand shell is fixed on top cover,
Outside collection box, for holding, motor is fixed on top cover, is located inside hand shell, and it is single that impeller is located at filtering in collection box
First top, power supply are fixed in hand shell, are electrically connected with motor, and for powering for motor, switch is arranged on hand shell, for controlling
The on-off of power supply processed.
Negative pressure chalk dust absorption device provided by the invention, can also have the feature that, it is characterised in that: wherein,
Impeller have multiple radial fan blades, radial fan blades with a thickness of 1-2mm, interior diameter 10-15mm, overall diameter 25-
30mm。
Negative pressure chalk dust absorption device provided by the invention, can also have the feature that, it is characterised in that: wherein,
Power supply is inductive charging battery.
Negative pressure chalk dust absorption device provided by the invention, can also have the feature that, it is characterised in that: wherein,
The active charcoal strainer of filter element.
The action and effect of invention
Since the negative pressure chalk dust absorption device in the present invention has collection box, air-flow generation unit, filter element, gas
The negative pressure that stream generation unit is formed can be such that the mixed airflow of chalk dust and air is inhaled into collection box via chassis through-hole
Portion, mixed airflow realize the separation of chalk dust and air after the filtering of filter element, and chalk dust falls into the ash of the storage below strainer
In disk, air continues up flowing and is flowed out by top shell through-hole, to realize circulation absorption, therefore, can be good at will everywhere
The aerial chalk dust that floats is sucked and is stored in collection box, so that chalk dust is removed without being inhaled by human body
Enter, avoids the harm that chalk dust generates teacher's health.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of negative pressure chalk dust absorption device in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram on chassis in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram that ash-pan is stored up in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of top cover in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of hand shell in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of impeller in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of motor in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of power supply in the embodiment of the present invention；And
Fig. 9 is the structural schematic diagram of filter element in the embodiment of the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below
Embodiment combination attached drawing makees the composition of negative pressure chalk dust absorption device provided by the invention, working principle and beneficial effect
It is specifically described.
Fig. 1, which is negative, presses the structural schematic diagram of chalk dust absorption device.
As shown in Figure 1, the negative pressure chalk dust absorption device 100 in the present embodiment is used to write blackboard eraser erasing chalk
The chalk dust generated when writing is purged, and has collection box 10, air-flow generation unit 20 and filter element 30.
Collection box 10 has chassis 11, storage ash-pan 12 and top cover 13 for collecting chalk dust.
Fig. 2 is the structural schematic diagram on chassis in the embodiment of the present invention.
As shown in Fig. 2, chassis 11 is in rectangle, there are bottom surface and four side walls.
The lower end of two long side side walls is respectively provided with the identical chassis through-hole 111 of size of two strips, bottom surface setting
There is the groove for placing blackboard eraser.
Fig. 3 is the structural schematic diagram that ash-pan is stored up in the embodiment of the present invention.
As shown in figs. 1 and 3, storage ash-pan 12 is removably attached on chassis 11, positioned at the lower section of filter element 30, is in
The rectangle to match with 11 size shape of chassis has bottom surface and four side walls.
Storing up setting at the bottom edge of ash-pan 12, there are four the storage ash-pan through-hole 121 passed through for mixed airflow, four storage ashes
Disk through-hole 121 is along the long side setting of storage ash-pan, and each position corresponding with chassis through-hole 111 is provided with a strip
The identical storage ash-pan through-hole 121 of size.
Fig. 4 is the structural schematic diagram of top cover in the embodiment of the present invention.
As shown in figs. 1 and 4, top cover 13 is removably attached on chassis 11.
Top cover 13 is in the rectangle to match with 1 size shape of chassis, has top surface and four side walls.
Top cover through-hole 131 on top cover 13 on the short side side wall of air-flow generation unit 20 there are two strip, two is long
Close to the side of the short side side wall, there are two strip top cover through-holes 131 respectively on avris wall.
Air-flow generation unit 20 is mounted on 10 top of collection box, for forming negative pressure inside collection box 10, by chalk dust
Inside the mixed airflow sucking collection box 10 of air, the mixed airflow flowed from 10 bottom of collection box to top is formed, is had
Hand shell 21, motor 22, impeller 23, power supply 24.
Fig. 5 is the structural schematic diagram of hand shell in the embodiment of the present invention.
As described in figures 1 and 5, hand shell 21 is fixed on top cover 13, is located at outside collection box 10, for holding.
The rectangular syphon shape of hand shell 21, including lower part 211, interconnecting piece 212, rear end enlarging section 213, the setting of motor 22 exist
In hand shell lower part 211, power supply 24 is arranged in hand shell rear end enlarging section 213.
Switch is provided on rear end enlarging section 213, for controlling the on-off of power supply 24.
Fig. 6 is the structural schematic diagram of motor in the embodiment of the present invention.
As shown in figs. 1 and 6, motor 22 is fixed on top cover 13, is located in hand shell lower part 211, for driving 23 turns of impeller
It is dynamic.
22 lower end main shaft of motor passes through the central axis of impeller 23.
Fig. 7 is the structural schematic diagram of impeller in the embodiment of the present invention.
As illustrated in figures 1 and 7, impeller 23 is mounted on motor 22, is located in collection box 10, in the top of filter element 30,
Negative pressure is formed for rotating.The interior diameter of impeller 23 is 10-15mm, overall diameter 30-35mm, has multiple radial fan blades
231, radial fan blades 231 with a thickness of 1-2mm.
Fig. 8 is the structural schematic diagram of power supply 24 in the embodiment of the present invention.
As shown in figs. 1 and 8, power supply 24 is fixed in hand shell rear end enlarging section 213, is electrically connected with motor 22, for being electric
Machine 22 is powered.
Power supply 24 is electromagnetic induction charged solar panel.
Fig. 9 is the structural schematic diagram of filter element in the embodiment of the present invention.
As illustrated in figs 1 and 9, filter element 30 is mounted in collection box 10, positioned at the top of storage ash-pan 12, for powder
The mixed airflow of pen ash and air is filtered.
Filter element 30 includes active carbon filter screen.
It elaborates below to operational process and principle provided in this embodiment.
In use, user holds hand shell 21, turn on the switch, starting motor 22 is to drive impeller 23 to rotate, in collection box
10 inside form negative pressure, and the mixed airflow of extraneous chalk dust and air is entered by chassis through-hole 111 under the action of negative pressure, from receipts
Collect 10 bottom of box to flow to top, successively by storage ash-pan through-hole 121 and filter element 30, after the filtering of active carbon filter screen 31,
Chalk dust and air separation in mixed airflow, chalk dust are fallen into lower section storage ash-pan 12, and air continues up flowing, via
Top cover through-hole 131 flows out, to realize that the collection of chalk dust is removed.
The action and effect of embodiment
Negative pressure chalk dust absorption device in the present invention has collection box, air-flow generation unit, filter element, for
Using the chalk dust generated in when blackboard eraser erasing chalk writing, the negative pressure that air-flow generation unit is formed makes chalk dust and air
Mixed airflow be inhaled into inside collection box, mixed airflow through in filter element active carbon filter screen effect after realize chalk dust
With the separation of air, chalk dust is fallen into the storage ash-pan below strainer, and air continues up flowing and flowed out by top shell through-hole, from
And it realizes the collection of chalk dust and removes.
Further, chassis through-hole is located at the lower end on chassis, can form negative pressure region in the position close to blackboard, make
Chalk dust forms mixed airflow and well into collection box, ensure that maximum chalk dust inhales with air as soon as possible
Enter, reduces residual as far as possible.
Storage ash-pan through-hole is located on the bottom margin for storing up ash-pan correspondingly with chassis through-hole, shortens mixing as far as possible
The flow path of gas avoids chalk dust and is retained in chassis so that flowing of the mixed airflow in collection box is unobstructed
It is interior.
Top cover is removably mounted on chassis, and the side close with air-flow generation unit is arranged in top cover through-hole, is located at
Below air-flow generation unit, guarantee that the circulation path of entire mixed gas is most short, so that the negative pressure that impeller generates obtains maximum journey
The utilization of degree improves collection efficiency, avoids the waste of the energy.Impeller uses radial fan blades, the electric field for being subject to chalk dust
Power is identical with the direction of air inducing power, increases the flowing velocity of mixed airflow, increases efficiency of dust collection.
For electromagnetic induction charged solar panel as power supply, avoiding leads to contact not because chalk dust is fallen on Plug contact face
It is good and the problem of cut down charging effect, improve charge efficiency, avoid in charging process current fluctuation to power supply and motor longevity
The influence of life increases the service life of device.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (8)
1. a kind of negative pressure chalk dust absorption device, the chalk dust generated when for blackboard eraser erasing chalk writing is purged,
It is characterised by comprising:
Collection box, for collecting the chalk dust, bottom setting is fluted, and the groove is for placing the blackboard eraser；
Air-flow generation unit is mounted on above the collection box, for forming negative pressure inside the collection box, by the chalk
Ash sucks in the collection box jointly with outside air, forms the mixed airflow flowed from the collection box bottom to top；With
And
Filter element is mounted in the collection box, for being filtered to the mixed airflow,
Wherein, the collection box also has chassis, top cover and storage ash-pan,
The groove is located on the chassis,
At least one chassis through-hole for supplying the mixed airflow to pass through is provided on the side wall on the chassis,
The storage ash-pan is removably attached on the chassis, positioned at the lower section of the filter element, the bottom of the storage ash-pan
It is provided at least one storage ash-pan through-hole for supplying the mixed airflow to pass through, the storage ash-pan through-hole is along the bottom of the storage ash-pan
Edge setting,
The top cover is removably attached on the chassis, at least one is provided on side wall for the filtered mixing
The top cover through-hole that air-flow passes through.
2. negative pressure chalk dust absorption device according to claim 1, it is characterised in that:
Wherein, the chassis through-hole is located at the lower end of the side wall on the chassis.
3. negative pressure chalk dust absorption device according to claim 1, it is characterised in that:
Wherein, the storage ash-pan through-hole is located on position corresponding with the chassis through-hole.
4. negative pressure chalk dust absorption device according to claim 1, it is characterised in that:
Wherein, the top cover through-hole setting is located at the air-flow generation unit in side corresponding with the air-flow generation unit
Lower section.
5. negative pressure chalk dust absorption device according to claim 1, it is characterised in that:
Wherein, the air-flow generation unit includes hand shell, motor, the impeller being mounted on the motor, power supply and switch,
The hand shell is fixed on the top cover, is located at outside the collection box, for holding,
The motor is fixed on the top cover, is located inside the hand shell,
The impeller is located in the collection box, is located above the filter element,
The power supply is fixed in the hand shell, is electrically connected with the motor, for powering for the motor,
The switch is fixed in the hand shell, adjacent with the power supply.
6. negative pressure chalk dust absorption device according to claim 5, it is characterised in that:
Wherein, the impeller has multiple radial fan blades,
The radial fan blades with a thickness of 1-2mm, interior diameter 10-15mm, overall diameter 30-35mm.
7. negative pressure chalk dust absorption device according to claim 5, it is characterised in that:
Wherein, the power supply is inductive charging battery.
8. negative pressure chalk dust absorption device according to claim 5, it is characterised in that:
Wherein, the active charcoal strainer of the filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744870.8A CN109047260A (en) | 2018-07-09 | 2018-07-09 | A kind of negative pressure chalk dust absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744870.8A CN109047260A (en) | 2018-07-09 | 2018-07-09 | A kind of negative pressure chalk dust absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109047260A true CN109047260A (en) | 2018-12-21 |
Family
ID=64819630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810744870.8A Pending CN109047260A (en) | 2018-07-09 | 2018-07-09 | A kind of negative pressure chalk dust absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109047260A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0247041A1 (en) * | 1985-01-22 | 1987-12-02 | JENSEN, Gordon Sydney | Dust extractors |
| US6772472B2 (en) * | 2001-06-29 | 2004-08-10 | Yu Long Wang | Eraser having selectively openable and closable aperatures |
| CN2834937Y (en) * | 2005-09-09 | 2006-11-08 | 麦力扬 | Dust-absorbing blackboard eraser |
| CN204432176U (en) * | 2015-01-23 | 2015-07-01 | 李礼鹏 | A kind of dust-suction blackboard eraser |
| CN206870699U (en) * | 2017-04-01 | 2018-01-12 | 上海理工大学 | A kind of Jing Yin dustless chargeable blackboard eraser |
-
2018
- 2018-07-09 CN CN201810744870.8A patent/CN109047260A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0247041A1 (en) * | 1985-01-22 | 1987-12-02 | JENSEN, Gordon Sydney | Dust extractors |
| US6772472B2 (en) * | 2001-06-29 | 2004-08-10 | Yu Long Wang | Eraser having selectively openable and closable aperatures |
| CN2834937Y (en) * | 2005-09-09 | 2006-11-08 | 麦力扬 | Dust-absorbing blackboard eraser |
| CN204432176U (en) * | 2015-01-23 | 2015-07-01 | 李礼鹏 | A kind of dust-suction blackboard eraser |
| CN206870699U (en) * | 2017-04-01 | 2018-01-12 | 上海理工大学 | A kind of Jing Yin dustless chargeable blackboard eraser |
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| PB01 | Publication | ||
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Application publication date: 20181221 |