CN103171338A - Telescopic dedusting blackboard eraser - Google Patents
Telescopic dedusting blackboard eraser Download PDFInfo
- Publication number
- CN103171338A CN103171338A CN 201110450716 CN201110450716A CN103171338A CN 103171338 A CN103171338 A CN 103171338A CN 201110450716 CN201110450716 CN 201110450716 CN 201110450716 A CN201110450716 A CN 201110450716A CN 103171338 A CN103171338 A CN 103171338A
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- China
- Prior art keywords
- blackboard eraser
- pull bar
- pull rod
- piece
- handle
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Abstract
The invention discloses a telescopic dedusting blackboard eraser which comprises a blackboard eraser shell body, one side face of the blackboard eraser shell body is provided with a panel shell, the other side face of the blackboard eraser shell body is provided with a handle, and a telescopic pull rod device is connected with the lower portion of the handle. The panel shell is provided with a hair layer, and a plurality of dust adsorbing holes are formed in the hair layer. A power-driven air extractor is arranged in the blackboard eraser shell body, a switch is arranged on the upper portion of the blackboard eraser shell body, and a battery which is used for supplying electricity for the power-driven air extractor is arranged in the blackboard eraser shell body. The telescopic device comprises a pull rod I, a pull rod II and a pull rod III, the pull II is sleeved in the pull rod I, the pull rod III is sleeved in the pull rod II, the pull rod I is connected with the handle, a clamping groove is formed in the inner wall of the lower portion of the pull rod I, a clamping groove is formed in the inner wall of the lower portion of the pull rod II, and the upper portion of the pull rod II and the upper potion of the pull rod III are connected with a clamping body which matches with the clamping grooves through spring pieces. The telescopic dedusting blackboard eraser has the advantages of being simple in structure, reasonable in design, healthy, energy-saving, environment-friendly, easy to use and convenient to popularize and use.
Description
Technical field
The present invention relates to a kind of blackboard eraser, particularly relate to a kind of extension type dust-removing blackboard eraser.
Background technology
As everyone knows, in the classroom, the chalk dust of kicking up when erasing the board is seriously influencing teachers and students' health.for the chalk dust in the classroom is eliminated, someone has designed the blackboard eraser that can add water, use this blackboard eraser to nuzzle up after blackboard, blackboard wets, the vestige that the place of nuzzling up Deng blackboard eraser after having done can occur nuzzling up, and be difficult to wipe clean again, also someone has designed and has utilized motor suction that chalk dust is sucked in blackboard eraser, can most of blackboard erasers be all square, limited the quantity of air suction opening, make most of chalk dust not be absorbed and affect teachers and students' health, also have a lot of students especially the pupil often can reach the eminence of blackboard when erasing the board, erase the board on stool and step down in, often can cause danger again.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of extension type dust-removing blackboard eraser is provided.This extension type dust-removing blackboard eraser is simple in structure, reasonable in design, health, and energy-conserving and environment-protective are used simply, are convenient to promote the use of.
for achieving the above object, the technical solution used in the present invention is: the extension type dust-removing blackboard eraser, it is characterized in that: comprise the blackboard eraser housing, on one side of described blackboard eraser housing, face-piece is installed, on the another side of described blackboard eraser housing, handle is installed, the below of described handle is connected with the telescopic lever device, be provided with batt on described face-piece, be provided with a plurality of air suction openings on described batt, the aperture of described air suction opening is 3.5mm～4.5mm, be equipped with in described blackboard eraser housing for by air suction opening, chalk dust being sucked the electric air exhaust machine of blackboard eraser enclosure interior, the top of described blackboard eraser housing is provided with the switch of opening or stopping for controlling the electric air exhaust machine, described blackboard eraser enclosure interior is provided with the battery that is used to the power supply of electric air exhaust machine, described telescopic lever device comprises pull bar one, pull bar two and pull bar three, described pull bar two is enclosed within pull bar one, described pull bar three is enclosed within pull bar two, described pull bar one is connected with handle, the inwall of described pull bar one and pull bar two bottoms is provided with draw-in groove, the top of described pull bar two and pull bar three all is connected with the card suitable with draw-in groove by spring leaf.
The circular blackboard eraser of above-mentioned extension type dedusting, it is characterized in that: described face-piece is sheet metal and rounded, and the thickness of described face-piece is 1.3mm～1.7mm, and the diameter of described face-piece is 100mm～120mm.
The circular blackboard eraser of above-mentioned extension type dedusting, it is characterized in that: described batt is made by wool.
The circular blackboard eraser of above-mentioned extension type dedusting is characterized in that: the equal 45mm～55mm of length of described pull bar one, pull bar two and pull bar three.
The present invention compared with prior art has the following advantages:
1, the present invention includes batt, air suction opening, electric air exhaust machine, handle, telescopic lever device formation, simple in structure and reasonable in design.
2, energy-conserving and environment-protective of the present invention can utilize the chalk dust of collecting again, continue to make chalk, and energy savings has reduced the injury of chalk dust to the person, has reduced the pollution of classroom environment.
3, the present invention uses simply, only need press the switch that is arranged on the outside and just can work, and can be fit to all kinds of crowds and use.
4, the present invention is safe and convenient to use, and the low people of height especially child only need pull open the place that telescopic bar reaches before just can getting at without lifting an eyebrow, has avoided the thing generation that erases the board on stool and fall down because stepping down in, has improved security.
5, the present invention has improved the absorptivity of chalk dust, adopts circular blackboard eraser, can increase a plurality of air suction openings, makes the electric air exhaust machine increase the absorptivity of chalk dust.
In sum, the present invention is simple in structure, and novel in design rationally functional reliability is high, long service life, thus improved quality and the performance of product, simplified the installation and debugging program, reduced the processing cost.Result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of face-piece of the present invention.
Fig. 4 is the structural representation of pull bar one of the present invention and pull bar two.
Description of reference numerals:
The 1-batt; The 2-switch; 3-blackboard eraser housing;
The 4-handle; 5-electric air exhaust machine; 6-telescopic lever device;
6-1-pull bar one; 6-2-pull bar two; 6-3-pull bar three;
The 6-4-draw-in groove; The 6-5-spring leaf; The 6-6-card;
The 7-face-piece; The 8-air suction opening; The 9-battery.
The specific embodiment
as Fig. 1, Fig. 2, Fig. 3 and a kind of extension type dust-removing blackboard eraser shown in Figure 4, comprise blackboard eraser housing 3, on one side of described blackboard eraser housing 3, face-piece 7 is installed, handle 4 is installed on the another side of described blackboard eraser housing 3, the below of described handle 4 is connected with telescopic lever device 6, be provided with batt 1 on described face-piece 7, be provided with a plurality of air suction openings 8 on described batt 1, the aperture of described air suction opening 8 is 3.5mm～4.5mm, be equipped with in described blackboard eraser housing 3 for by air suction opening 8, chalk dust being sucked the electric air exhaust machine 5 of blackboard eraser housing 3 inside, the top of described blackboard eraser housing 3 is provided with the switch 2 of opening or stopping for controlling electric air exhaust machine 5, described blackboard eraser housing 3 inside are provided with the battery 9 that is used to 5 power supplies of electric air exhaust machine, described telescopic lever device 6 comprises pull bar one 6-1, pull bar two 6-2 and pull bar three 6-3, described pull bar two 6-2 are enclosed within pull bar one 6-1, described pull bar three 6-3 are enclosed within pull bar two 6-2, described pull bar one 6-1 is connected with handle 4, the inwall of described pull bar one 6-1 and pull bar two 6-2 bottoms is provided with draw-in groove 6-4, the top of described pull bar two 6-2 and pull bar three 6-3 all is connected with the card 6-6 suitable with draw-in groove 6-4 by spring leaf 6-5.Preferably, described face-piece 7 is sheet metal and rounded, and the thickness of described face-piece 7 is 1.3mm～1.7mm, and the diameter of described face-piece 7 is 100mm～120mm.Described batt 1 is made by wool.
The course of work of the present invention is: when erasing the board, press switch 2, the electric air exhaust machine 5 of blackboard eraser housing 3 inside starts, face-piece 7 contacts with blackboard, electric air exhaust machine 5 sucks blackboard eraser housing 3 inside with chalk dust by air suction opening 8, face-piece 7 and blackboard eraser housing 3 be embedded in mutually together with, after wiping, face-piece 7 is taken off, chalk dusts in blackboard eraser housing 3 are poured in preprepared bucket or other container stored, in order to again utilize.Handle 4 is for the circular blackboard eraser of convenient crawl, pull bar one 6-1 in handle 4 and telescopic lever device 6 is connected in the mode of screw thread, coordinate by card 6-6 and draw-in groove 6-4 between pull bar one 6-1 and pull bar two 6-2 and pull bar two 6-2 and pull bar three 6-3, when telescopic lever device 6 does not use, card 6-6 is crushed on pull bar inside, can play the effect that skids off of preventing, when pulling out, card 6-6 is stuck in draw-in groove 6-4 under the effect of spring leaf 6-5, pull bar can be pulled open when the people that erases the board is not high enough, adjust the height that is fit to.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every according to the technology of the present invention essence to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solution of the present invention.
Claims (4)
1. extension type dust-removing blackboard eraser, it is characterized in that: comprise blackboard eraser housing (3), face-piece (7) is installed on one side of described blackboard eraser housing (3), handle (4) is installed on the another side of described blackboard eraser housing (3), the below of described handle (4) is connected with telescopic lever device (6), be provided with batt (1) on described face-piece (7), be provided with a plurality of air suction openings (8) on described batt (1), the aperture of described air suction opening (8) is 3.5mm～4.5mm, be equipped with in described blackboard eraser housing (3) for by air suction opening (8), chalk dust being sucked the inner electric air exhaust machine (5) of blackboard eraser housing (3), the top of described blackboard eraser housing (3) is provided with the switch (2) of opening or stopping for controlling electric air exhaust machine (5), described blackboard eraser housing (3) inside is provided with the battery (9) that is used to electric air exhaust machine (5) power supply, described telescopic lever device (6) comprises pull bar one (6-1), pull bar two (6-2) and pull bar three (6-3), described pull bar two (6-2) is enclosed within pull bar one (6-1), described pull bar three (6-3) is enclosed within pull bar two (6-2), described pull bar one (6-1) is connected with handle (4), the inwall of described pull bar one (6-1) and pull bar two (6-2) bottom is provided with draw-in groove (6-4), the top of described pull bar two (6-2) and pull bar three (6-3) all is connected with the card (6-6) suitable with draw-in groove (6-4) by spring leaf (6-5).
2. the circular blackboard eraser of extension type dedusting according to claim 1, it is characterized in that: described face-piece (7) is sheet metal and rounded, the thickness of described face-piece (7) is 1.3mm～1.7mm, and the diameter of described face-piece (7) is 100mm～120mm.
3. the circular blackboard eraser of extension type dedusting according to claim 1, it is characterized in that: described batt (1) is made by wool.
4. the circular blackboard eraser of extension type dedusting according to claim 1, is characterized in that: the equal 45mm～55mm of length of described pull bar one (6-1), pull bar two (6-2) and pull bar three (6-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450716 CN103171338A (en) | 2011-12-20 | 2011-12-20 | Telescopic dedusting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450716 CN103171338A (en) | 2011-12-20 | 2011-12-20 | Telescopic dedusting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103171338A true CN103171338A (en) | 2013-06-26 |
Family
ID=48631723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110450716 Pending CN103171338A (en) | 2011-12-20 | 2011-12-20 | Telescopic dedusting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103171338A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150728A (en) * | 2015-10-06 | 2015-12-16 | 刘书廷 | Novel blackboard eraser |
| CN106183566A (en) * | 2016-08-18 | 2016-12-07 | 叶芳 | A kind of detachably height adjustable blackboard eraser mechanism |
| CN109649052A (en) * | 2019-01-21 | 2019-04-19 | 焦作大学 | A kind of wisdom blackboard for teaching quick wipe device |
-
2011
- 2011-12-20 CN CN 201110450716 patent/CN103171338A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150728A (en) * | 2015-10-06 | 2015-12-16 | 刘书廷 | Novel blackboard eraser |
| CN106183566A (en) * | 2016-08-18 | 2016-12-07 | 叶芳 | A kind of detachably height adjustable blackboard eraser mechanism |
| CN109649052A (en) * | 2019-01-21 | 2019-04-19 | 焦作大学 | A kind of wisdom blackboard for teaching quick wipe device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |