CN105799395A - Handheld dust sucking blackboard eraser - Google Patents
Handheld dust sucking blackboard eraser Download PDFInfo
- Publication number
- CN105799395A CN105799395A CN201610155808.6A CN201610155808A CN105799395A CN 105799395 A CN105799395 A CN 105799395A CN 201610155808 A CN201610155808 A CN 201610155808A CN 105799395 A CN105799395 A CN 105799395A
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- CN
- China
- Prior art keywords
- dust
- hand
- micromachine
- blackboard eraser
- held
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
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- Filters For Electric Vacuum Cleaners (AREA)
Abstract
The invention discloses a handheld dust sucking blackboard eraser. The handheld dust sucking blackboard eraser is characterized in that an upper erasing board (12) and a lower erasing board (13) are board erasers with inclined surfaces; four compression springs are respectively designed below, and can vibrate up and down according to the magnitude of use pressure by people hands; and dust sucking holes are formed in dust sucking devices (10) on the upper erasing board (12) and the lower erasing board (13). When the handheld dust sucking blackboard eraser is used, a plastic steel shell of a handheld dust storage cavity (11) is held by a hand to erase chalk characters on a blackboard in up-down and left-right manners; the upper erasing board (12) and the lower erasing board (13) firstly erase the chalk characters on the blackboard; a micromotor (4) and a bevel gear (5) mounted on a brush shaft (7) drive the brush shaft (7) to rotate; dust is absorbed in the handheld dust storage cavity (11); a dust filter cavity (9), the dust sucking devices (10) and a rotating circular brush (6) are arranged behind the brush shaft (7); the dust sucking holes are formed in the dust sucking devices (10); and dust enters the handheld dust storage cavity (11) through the dust filter cavity (9).
Description
Technical field
The present invention relates to a kind of teaching auxiliary device blackboard eraser, particularly relate to a kind of hand-held dust absorption blackboard eraser.
Background technology
Chalk is applied to the history having had now several thousand, the educational undertaking of the mankind is made that indelible contribution, progress and social development along with history, bring potentially hazardous also to the teacher being engaged in educational undertaking and student simultaneously, teaching profession's disease rate is in the trend risen year by year, occupation disease presents variation direction to be developed, pneumoconiosis that wherein dust causes and various acute and chronic respiratory tract disease be main in China's occupation disease at present, harm the most seriously and a kind of.So, produce dust-proof blackboard eraser and become instant problem！Felt is simply put in people's iron sheet box by common conventional blackboard eraser, when class-teaching of teacher erases the board, flies upward skyborne chalk dust and is sucked pulmonary by people, brings very big infringement in the course of time the healthy of teachers and students.
Dust affects the healthy of teacher and student, and student on duty is difficult to remove dust clean, and general blackboard eraser has following drawback: the pollution of uncontrollable chalk dust, cannot make the chalk dust that blackboard-cleaning is clean, cannot remove on blackboard eraser batt.
Design and produce a kind of convenience, practical dust-proof blackboard eraser, be the novel problem of one of teaching innovation research.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of hand-held dust absorption blackboard eraser, the handle of blackboard eraser is long, convenient to operation, is particularly suitable for kindergarten, primary grades pupil use.
The technical solution adopted for the present invention to solve the technical problems is characterized in that: smears at hand-held dust-absorbing blackboard, design and produce the micromachine (4) of two reverse parallel connections, the hairbrush of the tapered gear of minitype motor driving inwardly rotates, two of which micromachine is fixed on the same side of brush axle, the outside of dust exhaust apparatus；Each brush axle has 13 groups of hairbrush (8), there is dust-filtering chamber (9) side of each brush axle (7), one end of brush axle (7) is connected with rotary round hairbrush (6), the length of hairbrush is three centimetres, the other end of brush axle (7) is except being connected with tapered gear (5), and tapered gear (5) is also connected with another the tapered gear (5) on micromachine (4) axle；Hand-held dust storage chamber is a length is 30 centimetres, and diameter is the plastic-steel pipe of four centimetres, there is the device storing dust inside, the cylindrical part of dust exhaust apparatus (10) front end is a length is ten centimetres, and diameter is the half fluting plastic-steel cylinder hollow pipe of eight centimetres.
Described hand-held dust absorption blackboard eraser, switch is DPTT double-pole triple throw switch (2), and after energising, when DPTT double-pole triple throw switch (2) gets to the side of micromachine (4), micromachine (4) drives brush axle (7) inwardly to rotate simultaneously；When DPTT double-pole triple throw switch (2) gets to the opposite side of micromachine (4), micromachine (4) drives brush axle (7) simultaneously to external rotation；When DPTT double-pole triple throw switch (2) gets to centre, power supply is cut off, and micromachine (4) quits work.
Described hand-held dust absorption blackboard eraser, after micromachine (4) is powered, micromachine (4) the tapered gear (5) installed upper with brush axle (7), brush axle (7) is driven to rotate, dust is by absorbing sets to hand-held dust storage chamber (11), and brush axle (7) is provided with dust-filtering chamber (9), dust exhaust apparatus (10), rotary round hairbrush (6) below；Dust exhaust apparatus (10) makes above air suction opening, dust enters in hand-held dust storage chamber (11) by dust-filtering chamber (9), by internal filtration devices dry linting dirt, dust is made to enter dust box, clean wind ejects from charging type vacuum cleaner air outlet (1), charging type vacuum cleaner air outlet (1) is internal equipped with lithium battery, hand-held dust storage chamber (11) is internal equipped with dust box, outside plastic-steel tube wall is provided with DPTT double-pole triple throw switch (2), and the side lower of charging type vacuum cleaner air outlet (1) is provided with charging jacks；The present invention can siphon away, by dust exhaust apparatus (10), the dust stayed when erasing the board, it is to avoid health is threatened by dust, is convenient for carrying, convenient and practical.
Upper wiping board (12) and lower wiping board (13), it it is the blackboard eraser on inclined-plane, upper wiping board (12) and lower wiping board (13) design separately below four compression springs, in pressure size when using according to staff, wiping board (12) and lower wiping board (13) can vertical tremors, on upper wiping board (12) and lower wiping board (13) dust exhaust apparatus above (10), make and have air suction opening.
As the further improvement of the present invention, electric power system adopts internal battery to power, and is provided with wire at hand-held dust storage chamber outer wall.
The invention has the beneficial effects as follows employing micromachine, tapered gear, hairbrush, hand-held dust storage chamber and dust exhaust apparatus, the hand-held dust absorption blackboard eraser being designed to, solve the problem that time tradition erases the board, dust disorderly flies.The blackboard eraser handle of the present invention is long, convenient to operation, is particularly suitable for kindergarten, primary grades pupil use.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the circuit theory diagrams of the present invention.
Fig. 2 is the axonometric chart of hand-held dust absorption blackboard eraser.
Fig. 3 is the dust exhaust apparatus top view of hand-held dust absorption blackboard eraser.
Fig. 4 is the dust exhaust apparatus side view of hand-held dust absorption blackboard eraser.
In figure: 1, charging type vacuum cleaner air outlet, 2, DPTT double-pole triple throw switch, 3, wire, 4, micromachine, 5, tapered gear, 6, rotary round hairbrush, 7, brush axle, 8, hairbrush, 9, dust-filtering chamber, 10, dust exhaust apparatus, 11, hand-held dust storage chamber, 12, upper wiping board, 13, lower wiping board.
Detailed description of the invention
The circuit theory diagrams of the present invention are with overall diagram respectively as depicted in figs. 1 and 2, in the embodiment depicted in figure 2, smear at hand-held dust-absorbing blackboard, design and produce the micromachine (4) of two reverse parallel connections, the hairbrush of the tapered gear of minitype motor driving inwardly rotates, two of which micromachine is fixed on the same side of brush axle, the outside of dust exhaust apparatus；Each brush axle has 13 groups of hairbrush (8), there is dust-filtering chamber (9) side of each brush axle (7), one end of brush axle (7) is connected with rotary round hairbrush (6), the length of hairbrush is three centimetres, the other end of brush axle (7) is except being connected with tapered gear (5), and tapered gear (5) is also connected with another the tapered gear (5) on micromachine (4) axle；Hand-held dust storage chamber is a length is 30 centimetres, and diameter is the plastic-steel pipe of four centimetres, there is the device storing dust inside, the cylindrical part of dust exhaust apparatus (10) front end is a length is ten centimetres, and diameter is the half fluting plastic-steel cylinder hollow pipe of eight centimetres.
Described hand-held dust absorption blackboard eraser, switch is DPTT double-pole triple throw switch (2), and after energising, when DPTT double-pole triple throw switch (2) gets to the side of micromachine (4), micromachine (4) drives brush axle (7) inwardly to rotate simultaneously；When DPTT double-pole triple throw switch (2) gets to the opposite side of micromachine (4), micromachine (4) drives brush axle (7) simultaneously to external rotation；When DPTT double-pole triple throw switch (2) gets to centre, power supply is cut off, and micromachine (4) quits work.
Described hand-held dust absorption blackboard eraser, after micromachine (4) is powered, micromachine (4) the tapered gear (5) installed upper with brush axle (7), brush axle (7) is driven to rotate, dust is by absorbing sets to hand-held dust storage chamber (11), and brush axle (7) is provided with dust-filtering chamber (9), dust exhaust apparatus (10), rotary round hairbrush (6) below；Dust exhaust apparatus (10) makes above air suction opening, dust enters in hand-held dust storage chamber (11) by dust-filtering chamber (9), by internal filtration devices dry linting dirt, dust is made to enter dust box, clean wind ejects from charging type vacuum cleaner air outlet (1), charging type vacuum cleaner air outlet (1) is internal equipped with lithium battery, hand-held dust storage chamber (11) is internal equipped with dust box, outside plastic-steel tube wall is provided with DPTT double-pole triple throw switch (2), and the side lower of charging type vacuum cleaner air outlet (1) is provided with charging jacks；The present invention can siphon away, by dust exhaust apparatus (10), the dust stayed when erasing the board, it is to avoid health is threatened by dust, is convenient for carrying, convenient and practical.
Upper wiping board (12) and lower wiping board (13), it it is the blackboard eraser on inclined-plane, upper wiping board (12) and lower wiping board (13) design separately below four compression springs, in pressure size when using according to staff, wiping board (12) and lower wiping board (13) can vertical tremors, on upper wiping board (12) and lower wiping board (13) dust exhaust apparatus above (10), make and have air suction opening.
When use, hold on the plastic-steel shell of hand-held dust storage chamber (11), on blackboard up and down, the mode erasing chalk word such as left and right, upper wiping board (12) and lower wiping board (13) first remove the letter written with chalk on blackboard, after micromachine (4) is powered, micromachine (4) the tapered gear (5) installed upper with brush axle (7), brush axle (7) is driven to rotate, dust is by absorbing sets to hand-held dust storage chamber (11), and brush axle (7) is provided with dust-filtering chamber (9), dust exhaust apparatus (10), rotary round hairbrush (6) below；Dust exhaust apparatus (10) makes above air suction opening, dust enters in hand-held dust storage chamber (11) by dust-filtering chamber (9), by internal filtration devices dry linting dirt, dust is made to enter dust box, clean wind ejects from charging type vacuum cleaner air outlet (1), solves the problem that time tradition erases the board, dust disorderly flies.
The above is only the preferred embodiments of the invention, it is noted that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, it is also possible to make some deformation and improvement, and these should be regarded as belonging to protection scope of the present invention.
Claims (4)
1. a hand-held dust absorption blackboard eraser, it is characterized in that: described hand-held dust absorption blackboard eraser, be made up of charging type vacuum cleaner air outlet (1), DPTT double-pole triple throw switch (2), wire (3), micromachine (4), tapered gear (5), rotary round hairbrush (6), brush axle (7), hairbrush (8), dust-filtering chamber (9), dust exhaust apparatus (10), hand-held dust storage chamber (11), upper wiping board (12) and lower wiping board (13)；Smearing at hand-held dust-absorbing blackboard, design and produce the micromachine (4) of two reverse parallel connections, the hairbrush of the tapered gear of minitype motor driving inwardly rotates, and two of which micromachine is fixed on the same side of brush axle, the outside of dust exhaust apparatus；Each brush axle has 13 groups of hairbrush (8), there is dust-filtering chamber (9) side of each brush axle (7), one end of brush axle (7) is connected with rotary round hairbrush (6), the length of hairbrush is three centimetres, the other end of brush axle (7) is except being connected with tapered gear (5), and tapered gear (5) is also connected with another the tapered gear (5) on micromachine (4) axle；Hand-held dust storage chamber is a length is 30 centimetres, and diameter is the plastic-steel pipe of four centimetres, there is the device storing dust inside, the cylindrical part of dust exhaust apparatus (10) front end is a length is ten centimetres, and diameter is the half fluting plastic-steel cylinder hollow pipe of eight centimetres.
2. a hand-held dust absorption blackboard eraser, it is characterized in that: described hand-held dust absorption blackboard eraser, switch is DPTT double-pole triple throw switch (2), after energising, when DPTT double-pole triple throw switch (2) gets to the side of micromachine (4), micromachine (4) drives brush axle (7) inwardly to rotate simultaneously；When DPTT double-pole triple throw switch (2) gets to the opposite side of micromachine (4), micromachine (4) drives brush axle (7) simultaneously to external rotation；When DPTT double-pole triple throw switch (2) gets to centre, power supply is cut off, and micromachine (4) quits work.
3. a hand-held dust absorption blackboard eraser, it is characterized in that: described hand-held dust absorption blackboard eraser, after micromachine (4) is powered, micromachine (4) the tapered gear (5) installed upper with brush axle (7), brush axle (7) is driven to rotate, dust is by absorbing sets to hand-held dust storage chamber (11), and brush axle (7) is provided with dust-filtering chamber (9), dust exhaust apparatus (10), rotary round hairbrush (6) below；Dust exhaust apparatus (10) makes above air suction opening, dust enters in hand-held dust storage chamber (11) by dust-filtering chamber (9), by internal filtration devices dry linting dirt, dust is made to enter dust box, clean wind ejects from charging type vacuum cleaner air outlet (1), charging type vacuum cleaner air outlet (1) is internal equipped with lithium battery, hand-held dust storage chamber (11) is internal equipped with dust box, outside plastic-steel tube wall is provided with DPTT double-pole triple throw switch (2), and the side lower of charging type vacuum cleaner air outlet (1) is provided with charging jacks；The present invention can siphon away, by dust exhaust apparatus (10), the dust stayed when erasing the board, it is to avoid health is threatened by dust, is convenient for carrying, convenient and practical.
4. a hand-held dust absorption blackboard eraser, it is characterized in that: upper wiping board (12) and lower wiping board (13), it it is the blackboard eraser on inclined-plane, upper wiping board (12) and lower wiping board (13) design separately below four compression springs, in pressure size when using according to staff, wiping board (12) and lower wiping board (13) can vertical tremors, on upper wiping board (12) and lower wiping board (13) dust exhaust apparatus above (10), make and have air suction opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610155808.6A CN105799395A (en) | 2016-03-20 | 2016-03-20 | Handheld dust sucking blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610155808.6A CN105799395A (en) | 2016-03-20 | 2016-03-20 | Handheld dust sucking blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105799395A true CN105799395A (en) | 2016-07-27 |
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ID=56453961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610155808.6A Pending CN105799395A (en) | 2016-03-20 | 2016-03-20 | Handheld dust sucking blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105799395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856452A (en) * | 2017-12-14 | 2018-03-30 | 湖北工程职业学院 | A kind of multifunctional blackboard eraser |
-
2016
- 2016-03-20 CN CN201610155808.6A patent/CN105799395A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856452A (en) * | 2017-12-14 | 2018-03-30 | 湖北工程职业学院 | A kind of multifunctional blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |
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| WD01 | Invention patent application deemed withdrawn after publication |