CN2621121Y - Eraser with device for absorbing chalk dust - Google Patents
Eraser with device for absorbing chalk dust Download PDFInfo
- Publication number
- CN2621121Y CN2621121Y CN 03249398 CN03249398U CN2621121Y CN 2621121 Y CN2621121 Y CN 2621121Y CN 03249398 CN03249398 CN 03249398 CN 03249398 U CN03249398 U CN 03249398U CN 2621121 Y CN2621121 Y CN 2621121Y
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- CN
- China
- Prior art keywords
- dust
- hole
- getter device
- blackboard brush
- substrate
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- Expired - Fee Related
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Abstract
This utility model discloses a suction blackboard brush used in cleaning the chalk handwriting, and comprises a foundation plate, brush bunches fixed and arranged in installment holes on the foundation plate at intervals , a peripheral fixed on the foundation plate and a peripheral extending in the direction of the brush stretching out. The utility model is characterized in that the installment holes are provided with a pylome, an getter device is arranged on the back of the foundation plate, a suction hole connected hermetically with the pylome is arranged on the getter device. By way of absorbing and collecting concentratively the chalk ash from the back of the foundation plate through the getter device, the chalk ash enters the interior area of the suction blackboard brush through the getter device when formed and is collected concentratively, thus the chalk ash cannot fly upwards in all directions, the collected chalk ash can be processed concentratively, thus not only protecting the environmental sanitation, but also benefiting the user as well as the health of the surrounding people, meanwhile enhancing the enthusiasm for scratching the blackboard of the user, in particular the student.
Description
Technical field
The utility model relates to a kind of blackboard brush, in particular for removing the blackboard brush of chalk person's handwriting.
Background technology
The present blackboard brush that uses, a large amount of the flying upward everywhere of chalk dust meeting when it uses, the healthy adverse influence of bringing of giving user and people on every side.In order to reduce flying upward of chalk dust, the blackboard brush that has has added surrounding edge at periphery.But such surrounding edge can only still have more chalk dust to fly upward out with very limited chalk dust retaining in surrounding edge, works the mischief for user and the healthy of people on every side, especially Faculty and Students.
The utility model content
Can cause chalk dust to fly upward in use everywhere in order to overcome existing blackboard brush, the deficiency of working the mischief for user and people's on every side health, the utility model provides a kind of dust-absorbing blackboard brush that can it be flown upward the chalk dust centralized collection everywhere.
The technical scheme that its technical problem that solves the utility model adopts is: dust-absorbing blackboard brush, comprise that substrate, fixed interval are arranged on the hairbrush bundle in the installing hole on the substrate and are fixed on the periphery of substrate and to the surrounding edge that direction is extended that stretches out of hairbrush bundle, it is characterized in that: also be provided with at least one through hole between the described installing hole, the back side of substrate is provided with getter device, and getter device is provided with the suction hole that is tightly connected with above-mentioned through hole.
The beneficial effects of the utility model are; utilize getter device chalk dust to be siphoned away and concentrates the mode of collection from the back side of substrate owing to adopted; make chalk dust when forming, enter the inside of dust-absorbing blackboard brush and concentrate collection by getter device; thereby can not cause chalk dust to fly upward everywhere; the chalk dust of centralized collection can focus on; the sanitation and hygiene of environment had both been protected; also help the healthy of user and people on every side; simultaneously can also improve the user, especially the enthusiasm that erases the board of student.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model exhaust condition.
Fig. 2 is the cross-sectional schematic of the utility model suction condition.
Fig. 3 is the right view of Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As Fig. 1, Fig. 2, shown in Figure 3, dust-absorbing blackboard brush of the present utility model, comprise that substrate 1, fixed interval are arranged on the hairbrush bundle 2 in the installing hole 4 on the substrate 1 and are fixed on the periphery of substrate 1 and to the surrounding edge 3 that direction is extended that stretches out of hairbrush bundle 2, the length of above-mentioned surrounding edge 3 is less than the length of hairbrush bundle 2, and promptly hairbrush bundle 2 stretches out surrounding edge 3 certain length and facilitates the use hairbrush and brush chalk dust.Also be provided with at least one through hole 5 between the installing hole 4, the back side 7 of substrate 1 is provided with getter device 6, getter device 6 is provided with the suction hole 9 that is tightly connected with above-mentioned through hole 5, sealing connects can adopt modes such as sealing strip, tight fit or flexible pipe connection, be difficult for gas leakage as long as reach, to guarantee air-breathing efficient.When starting getter device 6 when air-breathing, by through hole 5 with the air inhale device 6 in the surrounding edge 3, simultaneously in the surrounding edge 3 and chalk dust on every side also be inhaled into getter device 6, prevented that chalk dust from outwards flying upward, also reach the purpose of centralized collection chalk dust simultaneously.When the through hole that is provided with more for a long time, between through hole 5 and the suction hole 9 suction muffler 10 can also be set, through hole 5 and suction hole 9 are tightly connected with suction muffler 10, so not only can make the pressure of inspiration(Pi) equilibrium at each through hole 5 place, can also make the inspiratory effects at designs simplification and each through hole 5 place of assurance.In order further to improve the effect of dust suction and to be convenient to continuous operation, the dust storage device 8 that also is provided with steam vent 11 on the getter device 6 and is connected with steam vent 11, dust storage device 8 is provided with screen pack 14 and opening 15, screen pack 14 is arranged between steam vent 11 and the opening 15, between dust storage device 8 and the getter device 6 for removably connecting, as adopting connections such as bayonet socket, seam or screw.When the air of the band chalk dust that sucks when discharging getter device 6, utilize screen pack 14 that airborne chalk dust is filtered and is collected in the dust storage device 8, chalk dust in the dust storage device 8 can unload dust storage device 8 after collecting and expiring, and after outwelling chalk dust and clearing up screen pack 14, can reuse.Steam vent 11 is provided with one-way exhaust valve door 12, described suction hole 9 is provided with one-way intake valve 13, one-way exhaust valve door 12 and one-way intake valve 13 can adopt elastic spring or check-valves, non-return valve etc., can only be along the direction one-way flow of air suction in order to guarantee air.During use, open getter device 6, one-way intake valve 13 is opened, and the chalk dust in the coaming plate 3 is inhaled into getter device 6 with air, as Fig. 1; During exhaust, one-way exhaust valve door 12 is opened, and getter device 6 is discharged air and chalk dust together from steam vent 11, as Fig. 2.Simultaneously, chalk dust be filtered that net 14 filters and by centralized collection in dust storage device 8.Chalk dust in the dust storage device 8 can unload dust storage device 8 after collecting and expiring, and after outwelling chalk dust and clearing up screen pack 14, can reuse.
The employed hairbrush bundle 2 of above-mentioned dust-absorbing blackboard brush also can use material replacements such as present normally used felt bar; felts etc. utilize bonding grade to be fixed on the substrate 1; through hole 5 is arranged in the gap between the above-mentioned felt bar; can reach the purpose of this utility model and effect equally, this mode drops within the protection domain of the present utility model too.
Embodiment 1: as Fig. 1, Fig. 2, shown in Figure 3, dust-absorbing blackboard brush of the present utility model, comprise that substrate 1, fixed interval are arranged on the hairbrush bundle 2 in the installing hole 4 on the substrate 1 and are fixed on the periphery of substrate 1 and to the surrounding edge 3 that direction is extended that stretches out of hairbrush bundle 2, the length of above-mentioned surrounding edge 3 is less than the length of hairbrush bundle 2.Also be provided with through hole 5 between the installing hole 4 and evenly arrange along substrate 1.The back side 7 of substrate 1 is provided with getter device 6, getter device 6 comprises elastic caoutchouc capsule 16, handle framework 18 and pressing plate 20, handle framework 18 is fixed on the back side 7 of substrate 1 and forms suction muffler 10, it is interior and corresponding with the position of pressing plate 20 that above-mentioned elastic caoutchouc capsule 16 is arranged on handle framework 18, pressing plate 20 is provided with handle 17, has and the suitable hole of handle 17 shapes with handle 17 corresponding sections on the handle framework 18.Elastic caoutchouc capsule 16 is provided with the suction hole 9 that is tightly connected with above-mentioned through hole 5, and through hole 5 and suction hole 9 are tightly connected with suction muffler 10 respectively.The dust storage device 8 that also is provided with steam vent 11 on the getter device 6 and is connected with steam vent 11, dust storage device 8 is provided with screen pack 14 and opening 15, screen pack 14 is arranged between steam vent 11 and the opening 15, adopts bayonet socket to be connected between dust storage device 8 and the getter device 6.Steam vent 11 is provided with one-way exhaust valve door 12, and suction hole 9 is provided with one-way intake valve 13, and one-way exhaust valve door 12 and one-way intake valve 13 adopt elastic spring.
During use, as shown in Figure 1, in erasing blackboard, handle 17 is pressed into, elastic caoutchouc capsule 16 is compressed, and one-way intake valve 13 is not opened and suction hole 9 is closed at this moment; Simultaneously, because the effect of pressure, one-way exhaust valve door 12 is unlocked, and air is squeezed out steam vent 11, discharges from opening 15 after the screen pack on the dust storage device 8 14 filters; Then, as shown in Figure 2, release handle 17, one-way exhaust valve door 12 is closed under the effect of negative pressure and one-way intake valve 13 is opened, and the chalk dust in the coaming plate 3 is inhaled in the elastic caoutchouc capsule 16 with air.Constantly repeat above-mentioned steps in erasing blackboard, chalk dust is promptly by the inside of dust-absorbing blackboard brush and be filtered net 14 centralized collection in dust storage device 8, when the chalk dust in the dust storage device 8 collect full after, promptly unload dust storage device 8 it cleaned out, can continue to use.
Embodiment 2: the novel another kind of embodiment of this use is: dust-absorbing blackboard brush comprises that substrate 1, fixed interval are arranged on the hairbrush bundle 2 in the installing hole 4 on the substrate 1 and are fixed on the periphery of substrate 1 and to the surrounding edge 3 that direction is extended that stretches out of hairbrush bundle 2, the length of above-mentioned surrounding edge 3 is less than the length of hairbrush bundle 2.Also be provided with through hole 5 between the installing hole 4 and evenly arrange along substrate 1.The back side 7 of substrate 1 is provided with getter device 6, and getter device 6 is for being installed in electric fan or the manual blower fan in the handle framework 18, and the transmission device that manual blower fan utilization is connected with handle 17 provides the unidirectional rotary power of blower fan.The inlet of blower fan is tightly connected by suction hole 9 and suction muffler 10, and the outlet of blower fan is connected with dust storage device 8 by steam vent 11.Dust storage device 8 is provided with screen pack 14 and opening 15, and screen pack 14 is arranged between steam vent 11 and the opening 15, adopts bayonet socket to be connected between dust storage device 8 and the getter device 6.
During use, in erasing blackboard, the handle 17 of manual blower fan is pressed into repeatedly or with the electric power starting of electric fan, at this moment, the air of the band chalk dust in surrounding edge 3 scopes is sucked from through hole 5 by blower fan, and in proper order by behind blower fan, steam vent 11, the screen pack 14, the opening 15 from dust storage device 8 is discharged.Chalk dust is promptly by the inside of dust-absorbing blackboard brush and be filtered net 14 centralized collection in dust storage device 8, when the chalk dust in the dust storage device 8 collect full after, promptly unload dust storage device 8 it cleaned out, can continue to use.
Claims (8)
1, dust-absorbing blackboard brush, comprise that substrate (1), fixed interval are arranged on the hairbrush bundle (2) in the installing hole (4) on the substrate (1) and are fixed on the periphery of substrate (1) and to the surrounding edge (3) that stretches out the direction extension of hairbrush bundle (2), it is characterized in that: also be provided with at least one through hole (5) between the described installing hole (4), the back side (7) of substrate (1) is provided with getter device (6), and getter device (6) is provided with the suction hole (9) that is tightly connected with above-mentioned through hole (5).
2, dust-absorbing blackboard brush as claimed in claim 1 is characterized in that: also be provided with suction muffler (10) between described through hole (5) and the suction hole (9), through hole (5) and suction hole (9) are tightly connected with suction muffler (10).
3, dust-absorbing blackboard brush as claimed in claim 1, it is characterized in that: the dust storage device (8) that also is provided with steam vent (11) on the described getter device (6) and is connected with steam vent (11), dust storage device (8) is provided with screen pack (14) and opening (15), and screen pack (14) is arranged between steam vent (11) and the opening (15).
4, dust-absorbing blackboard brush as claimed in claim 3 is characterized in that: described steam vent (11) is provided with one-way exhaust valve door (12), and described suction hole (9) is provided with one-way intake valve (13).
5, dust-absorbing blackboard brush as claimed in claim 4 is characterized in that: described one-way exhaust valve door (12) and one-way intake valve (13) are elastic spring or check-valves.
6, dust-absorbing blackboard brush as claimed in claim 3 is characterized in that: between described dust storage device (8) and the getter device (6) for removably connecting.
7, dust-absorbing blackboard brush as claimed in claim 1 or 2, it is characterized in that: described getter device (6) comprises elastic caoutchouc capsule (16), handle framework (18) and pressing plate (20), handle framework (18) is fixed on the back side (7) of substrate (1) and goes up and form suction muffler (10), it is interior and corresponding with the position of pressing plate (20) that above-mentioned elastic caoutchouc capsule (16) is arranged on handle framework (18), pressing plate (20) is provided with handle (17), and handle framework (18) is gone up and handle (17) corresponding section has and the suitable hole of handle (17) shape.
8, dust-absorbing blackboard brush as claimed in claim 3 is characterized in that: described getter device (6) is electric fan or manual blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249398 CN2621121Y (en) | 2003-07-08 | 2003-07-08 | Eraser with device for absorbing chalk dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249398 CN2621121Y (en) | 2003-07-08 | 2003-07-08 | Eraser with device for absorbing chalk dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2621121Y true CN2621121Y (en) | 2004-06-23 |
Family
ID=34252682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03249398 Expired - Fee Related CN2621121Y (en) | 2003-07-08 | 2003-07-08 | Eraser with device for absorbing chalk dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2621121Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108359A (en) * | 2016-07-26 | 2016-11-16 | 桐乡市永鑫制刷机械厂 | A kind of hairbrush with dust-absorbing function |
| CN106213782A (en) * | 2016-07-26 | 2016-12-14 | 桐乡市永鑫制刷机械厂 | A kind of substrate of the hairbrush with dust-absorbing function |
| CN106394085A (en) * | 2016-12-02 | 2017-02-15 | 辛顺强 | Blackboard erasing and dust removing device for teaching building |
| CN110422000A (en) * | 2019-07-25 | 2019-11-08 | 广小芳 | A kind of hand electric teaching aid that wiping effect is good |
-
2003
- 2003-07-08 CN CN 03249398 patent/CN2621121Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108359A (en) * | 2016-07-26 | 2016-11-16 | 桐乡市永鑫制刷机械厂 | A kind of hairbrush with dust-absorbing function |
| CN106213782A (en) * | 2016-07-26 | 2016-12-14 | 桐乡市永鑫制刷机械厂 | A kind of substrate of the hairbrush with dust-absorbing function |
| CN106394085A (en) * | 2016-12-02 | 2017-02-15 | 辛顺强 | Blackboard erasing and dust removing device for teaching building |
| CN110422000A (en) * | 2019-07-25 | 2019-11-08 | 广小芳 | A kind of hand electric teaching aid that wiping effect is good |
| CN110422000B (en) * | 2019-07-25 | 2021-08-13 | 杨陈澄 | Clean effectual electronic teaching aid of hand-held type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |