CN103963521A - Dust suction device for dust-suction blackboard eraser - Google Patents
Dust suction device for dust-suction blackboard eraser Download PDFInfo
- Publication number
- CN103963521A CN103963521A CN201410001927.7A CN201410001927A CN103963521A CN 103963521 A CN103963521 A CN 103963521A CN 201410001927 A CN201410001927 A CN 201410001927A CN 103963521 A CN103963521 A CN 103963521A
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- dust
- storage chamber
- blackboard eraser
- vacuum pipe
- venturi vacuum
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Abstract
The invention relates to a dust suction device for a dust-suction blackboard eraser. The dust suction device comprises a barrel body, a vacuumizing component and a dust storage chamber. The dust storage chamber is arranged in the barrel body. The vacuumizing component is connected to the upper end of the dust storage chamber through a one-way valve. The lower end of the dust storage chamber is connected with a dust suction pipe through a valve. The dust storage chamber is detachably connected with the barrel body. The vacuumizing component is composed of a Venturi vacuum pipe and a hand air pump. A vacuumizing opening of the Venturi vacuum pipe is connected with the one-way valve. An air inlet of the Venturi vacuum pipe is connected with the hand air pump. A silencer is installed in an air outlet of the Venturi vacuum pipe. According to the dust suction device, negative pressure can be stored and no power source is needed. When dust flying on the two sides of the blackboard eraser is sucked into the dust suction device through the negative pressure, pollution of a classroom and air by the dust is completely eradicated, protection of the indoor environment and the health of teachers and students is facilitated, and the dust suction device is convenient to use and simple in structure.
Description
Technical field
The present invention relates to a kind of blackboard eraser, especially relate to a kind of dust exhaust apparatus of inhaling powder ash eraser board eraser.
Background technology
Existing blackboard eraser is to be made by the material of loading onto felt one class above plank and easily wipe letter written with chalk.In the time erasing the board, although letter written with chalk has been wiped, chalk dust flies upward everywhere, the hand of making dirty, clothes and face.Arm moves in turn back and forth when erasing the board, also sweat very, in addition, when moving in turn back and forth, also strengthen Air Flow, made the farther of diffusion that dust wafts, contaminated environment, long-term suction dust is very unfavorable to student and teacher's physical and mental health, and dust from flying is very unhygienic simultaneously, and the existing blackboard eraser life-span is short, waste of material is serious, does not meet the theory of national energy-saving environmental protection.Therefore, adopt the greyish black blackboard eraser of a kind of electronic suction, this blackboard eraser adopts micro-cleaner or connects domestic vacuum cleaners by pipe, but all motors of blackboard eraser and micro-cleaner power consumption are large, need to be with special rechargeable battery and relevant charger, Heavy Weight, cannot hand-held, as inconvenient in used with wired power supply, so need a kind of suction apparatus for ash that can lay in negative pressure for the greyish black blackboard eraser of electronic suction.
Summary of the invention
The present invention will provide a kind of for inhaling the dust exhaust apparatus of greyish black blackboard eraser; this dust exhaust apparatus can be laid in negative pressure; in the time of blackboard wiping; the dust flying upward when blackboard eraser both sides all sucks dust in dust catcher by negative pressure; stop the pollution of dust to classroom and air; be conducive to protect indoor environment and teachers and students' health, and have easy to use, simple in structure.
For achieving the above object, technical scheme of the present invention is: a kind ofly comprise cylindrical shell, vacuumizing part, dust-storage chamber for inhaling the dust exhaust apparatus of greyish black blackboard eraser, be provided with dust-storage chamber in cylindrical shell, dust-storage chamber upper end connects vacuumizing part by check valve, and dust-storage chamber lower end connects sweep-up pipe by valve.
Dust-storage chamber and cylindrical shell removably connect.Vacuumizing part is made up of venturi vacuum pipe and hand air pump, and venturi vacuum pipe vacuum orifice connects check valve, and venturi vacuum pipe air inlet connects hand air pump.Venturi vacuum pipe exhaust outlet is equipped with muffler.
The beneficial effect that the present invention compared with prior art has is: suction apparatus for ash of the present invention can be laid in negative pressure, without power supply.The dust flying upward when blackboard eraser both sides all sucks dust in dust catcher by negative pressure, has stopped the pollution of dust to classroom and air, is conducive to protect indoor environment and teachers and students' health, and has easy to use, simple in structure.
Brief description of the drawings
Fig. 1 is structure cutaway view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, a kind of for inhaling the dust exhaust apparatus of greyish black blackboard eraser, comprise cylindrical shell 1, vacuumizing part 2, dust-storage chamber 3.
In cylindrical shell 1, be provided with dust-storage chamber 3, dust-storage chamber 3 upper ends connect vacuumizing part 2 by check valve 4, and dust-storage chamber 3 lower ends connect sweep-up pipe 6 by valve 5.Dust-storage chamber 3 removably connects with cylindrical shell 1.
Vacuumizing part 2 is made up of venturi vacuum pipe and hand air pump 7, and venturi vacuum pipe vacuum orifice connects check valve 4, and venturi vacuum pipe air inlet connects hand air pump 7.Venturi vacuum pipe exhaust outlet is equipped with muffler 8.
When use; first pass through the interior generation negative pressure of venturi vacuum Guan Shi dust-storage chamber 3 with hand air pump 7; when dust suction, open valve 5 powder ashes and be inhaled into dust-storage chamber 3 by sweep-up pipe 6, stopped the pollution of dust to classroom and air, be conducive to protect indoor environment and teachers and students' health.After the interior powder ash of dust-storage chamber 3 is filled, pull down dust-storage chamber 3 and outwell powder ash.
Claims (4)
1. one kind for inhaling the dust exhaust apparatus of greyish black blackboard eraser, comprise cylindrical shell (1), vacuumizing part (2), dust-storage chamber (3), it is characterized in that: in described cylindrical shell (1), be provided with dust-storage chamber (2), dust-storage chamber (2) upper end connects vacuumizing part (2) by check valve (4), and dust-storage chamber (3) lower end connects sweep-up pipe (6) by valve (5).
2. according to claim 1 for inhaling the dust exhaust apparatus of greyish black blackboard eraser, it is characterized in that: described dust-storage chamber (3) removably connects with cylindrical shell (1).
3. according to claim 1 for inhaling the dust exhaust apparatus of greyish black blackboard eraser, it is characterized in that: described vacuumizing part (2) is made up of venturi vacuum pipe and hand air pump (7), venturi vacuum pipe vacuum orifice connects check valve (4), and venturi vacuum pipe air inlet connects hand air pump (7).
4. according to claim 3 for inhaling the dust exhaust apparatus of greyish black blackboard eraser, it is characterized in that: described venturi vacuum pipe exhaust outlet is equipped with muffler (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001927.7A CN103963521A (en) | 2014-01-01 | 2014-01-01 | Dust suction device for dust-suction blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001927.7A CN103963521A (en) | 2014-01-01 | 2014-01-01 | Dust suction device for dust-suction blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103963521A true CN103963521A (en) | 2014-08-06 |
Family
ID=51233726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410001927.7A Pending CN103963521A (en) | 2014-01-01 | 2014-01-01 | Dust suction device for dust-suction blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103963521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742624A (en) * | 2015-04-13 | 2015-07-01 | 石昌远 | Dust-free blackboard eraser |
| CN108273772A (en) * | 2017-12-20 | 2018-07-13 | 浙江大学城市学院 | Solar panel scavenging machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072484U (en) * | 1990-04-03 | 1991-03-06 | 朱振华 | Aspirating eraser |
| CN2211370Y (en) * | 1994-11-14 | 1995-11-01 | 任伟 | Dust collecting blackboard eraser |
| JPH08267995A (en) * | 1995-03-30 | 1996-10-15 | Shinji Inoue | Blackboard eraser equipped with vacuum cleaner |
| CN2825318Y (en) * | 2005-07-28 | 2006-10-11 | 北京艾发尔科技有限公司 | Chalk powder collector |
| CN201201454Y (en) * | 2008-06-29 | 2009-03-04 | 俞健 | Negative pressure absorbent blackboard eraser |
| CN202242645U (en) * | 2011-10-19 | 2012-05-30 | 徐健 | Chalk powder negative pressure collector |
-
2014
- 2014-01-01 CN CN201410001927.7A patent/CN103963521A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072484U (en) * | 1990-04-03 | 1991-03-06 | 朱振华 | Aspirating eraser |
| CN2211370Y (en) * | 1994-11-14 | 1995-11-01 | 任伟 | Dust collecting blackboard eraser |
| JPH08267995A (en) * | 1995-03-30 | 1996-10-15 | Shinji Inoue | Blackboard eraser equipped with vacuum cleaner |
| CN2825318Y (en) * | 2005-07-28 | 2006-10-11 | 北京艾发尔科技有限公司 | Chalk powder collector |
| CN201201454Y (en) * | 2008-06-29 | 2009-03-04 | 俞健 | Negative pressure absorbent blackboard eraser |
| CN202242645U (en) * | 2011-10-19 | 2012-05-30 | 徐健 | Chalk powder negative pressure collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742624A (en) * | 2015-04-13 | 2015-07-01 | 石昌远 | Dust-free blackboard eraser |
| CN108273772A (en) * | 2017-12-20 | 2018-07-13 | 浙江大学城市学院 | Solar panel scavenging machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |