CN202528715U - Dust-collection blackboard eraser - Google Patents
Dust-collection blackboard eraser Download PDFInfo
- Publication number
- CN202528715U CN202528715U CN2012201484234U CN201220148423U CN202528715U CN 202528715 U CN202528715 U CN 202528715U CN 2012201484234 U CN2012201484234 U CN 2012201484234U CN 201220148423 U CN201220148423 U CN 201220148423U CN 202528715 U CN202528715 U CN 202528715U
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- CN
- China
- Prior art keywords
- blackboard eraser
- groove
- dust
- roller bearing
- housing
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a dust-collection blackboard eraser, comprising a shell, wherein the shell is provided with a board eraser groove and rolling shaft grooves; the rolling shaft grooves are arranged at two outer sides opposite to the board eraser groove; the board eraser groove is internally provided with a board eraser; the board eraser is fixedly provided with bristles; the rolling shaft grooves are provided with rolling shafts and sealing gaskets are arranged at two side edges of the board eraser groove which is vertical to the rolling shaft grooves; the upper surface of the rolling shafts are leveled with the upper ends of the sealing gaskets; the shell is provided with a dust outlet; and the dust outlet is communicated with a dust collection box. The dust-collection blackboard eraser disclosed by the utility model can collect the erased chalk powder so as to prevent the dust from flying around and prevent environmental pollution; and the dust-collection blackboard eraser has the advantages of simple structure, portability and low construction cost, and is good for popularization and application.
Description
Technical field
The utility model relates to a kind of blackboard eraser, specifically relates to a kind of dust absorption blackboard eraser, belongs to the teaching equipment technical field.
Background technology
Traditional blackboard eraser is to be bonded by blackboard eraser and cotton felt, and soon a fritter felt pan or sponge adhere on the blackboard eraser and use as blackboard eraser, or are bonded by blackboard eraser and hairbrush; During the chalk writing of this type blackboard eraser on wiping blackboard, usually can cause chalk powder to fly upward everywhere, not only contaminated air; Also be easy to be drawn onto in the lung by teacher, student; Have a strong impact on the healthy of academics and students, and the chalk powder that is bonded on the cotton felt is difficult to also remove, can only removes the dust on the cotton felt through the mode of beaing; Thus, also can cause chalk powder to fly upward everywhere.
Along with development of technology, appearance dustproof or dust absorption blackboard eraser has solved the technical problem that chalk powder flies upward everywhere, but existing dustproof or the dust absorption blackboard eraser volume is big, cost is higher and weight is heavier.
Chinese patent CN202029600U has announced a kind of electric dust absorption blackboard eraser, and this blackboard eraser comprises the blackboard eraser body, the dust collection case; The blackboard eraser bristle is provided with the rotating shaft of row's band blackboard eraser bristle at least in said blackboard eraser body, be equipped with sprocket wheel in each rotating shaft; Adjacent sprocket wheel connects through chain is closed, and chain is electrically connected motor, at least also is provided with row's air suction opening in the blackboard eraser body; Air suction opening communicates with the dust collection case, is provided with dust catcher in the dust collection case, but this device not only is provided with sprocket wheel, motor but also dust catcher is set in the blackboard eraser body; Cause blackboard eraser volume, weight bigger, cost is high, and uses comparatively heavy.
Summary of the invention
Be technical deficiency more than solving, it is a kind of simple in structure that the utility model provides, and volume, weight are less, and cost is low, and dust absorption blackboard eraser easy to use can not only prevent that chalk dust from flying upward everywhere, improves environmental sanitation, and can improve wiping efficient.
The technical scheme of the utility model is following:
A kind of dust absorption blackboard eraser comprises housing, and housing is provided with blackboard eraser groove and roller bearing groove; The roller bearing groove is arranged on the two relative outsides of blackboard eraser groove, is provided with blackboard eraser in the described blackboard eraser groove, fasten bristles on the blackboard eraser; Be provided with roller bearing in the roller bearing groove, the dual-side of the blackboard eraser groove vertical with the roller bearing groove is provided with sealing gasket, and the upper surface of said roller bearing is concordant with the upper end of sealing gasket; Also be provided with meal outlet on the housing, meal outlet is communicated with the dust collection case.
Cell wall plug-in mounting between described blackboard eraser groove and the roller bearing groove or be inlaid on the housing is in described blackboard eraser plug-in mounting or the setting-in blackboard eraser groove.This kind easy design is taken out blackboard eraser.
Preferably, the side of described blackboard eraser is provided with projection, and the blackboard eraser groove is provided with the draw-in groove that matches with projection with cell wall between the roller bearing groove, and described blackboard eraser is inlaid in the blackboard eraser groove.The advantage of this kind design: when the hairbrush serious wear, can conveniently blackboard eraser be taken out, the bristle that more renews, it is convenient to change.
Be provided with elastomeric element in the cavity between described blackboard eraser and the housing, an end of elastomeric element is fixed on the blackboard eraser, and the other end is fixed on the housing.During use, hand makes the blackboard eraser holddown spring by blackboard eraser, and the level height of bristle is concordant with roller bearing, and two roller bearings are formed sealed space with concordant soft sealing gasket, prevent to wipe the dust that gets off and fly upward everywhere.
Preferably, described elastomeric element is a spring, and described spring is 2-4.
Preferably, described meal outlet is vertical with the blackboard eraser groove.
Grip conveniently in order to make, the outer surface of said housing is provided with the handle of outside protrusion.
The utility model is preferred, and described housing is a rectangle.
The course of work of the utility model: when not using, the resilient support blackboard eraser of spring makes the level height of bristle exceed roller bearing, during use; Hand makes the blackboard eraser holddown spring by blackboard eraser, and the upper end of bristle is concordant with the upper surface of roller bearing, when wiping; Roller bearing rolls; Two roller bearings are formed sealed space with concordant soft sealing gasket, and the space of the chalk powder under the wiping along between hairbrush falls to meal outlet, get in the dust collection case from meal outlet; The dust that falls in the housing cavity also can get into the dust collection case from meal outlet, thereby has avoided dust to fly upward everywhere.
The beneficial effect of the utility model:
1) the utility model can collect the chalk powder of removing, and has avoided dust to fly upward everywhere, prevents contaminated environment.
2) simple in structure, light, cost is low, help promoting and use.
3) blackboard eraser of the utility model is inlaid in the cavity, and is convenient with the plate taking-up, changes bristle.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 removes the structural representation of blackboard eraser for the utility model;
Fig. 3 is the structural representation of the utility model blackboard eraser.
Among the figure, 1, housing; 2, roller bearing; 3, blackboard eraser groove; 4, sealing gasket; 5, spring; 6, draw-in groove; 7, meal outlet; 8, dust collection case; 9, handle; 10, blackboard eraser; 11, projection; 12, bristle.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is done explanation at length, but the utility model is not limited thereto.
A kind of dust absorption blackboard eraser, structure such as Fig. 1, shown in Figure 2 comprise housing 1; Described housing 1 is a rectangle, and housing is provided with blackboard eraser groove 3 and roller bearing groove, and the roller bearing groove is arranged on the two relative outsides of blackboard eraser groove 3; Cell wall between blackboard eraser groove 3 and the roller bearing groove is inserted on the housing 1; Be fixed with bristle 12 on the described blackboard eraser 10, the side of blackboard eraser 10 is provided with projection 11, and structure is as shown in Figure 3; Blackboard eraser groove 3 is provided with the draw-in groove 6 that matches with projection 11 with cell wall between the roller bearing groove, and described blackboard eraser 10 is inlaid in the blackboard eraser groove 3.This kind easy design is taken out blackboard eraser.
Be provided with roller bearing 2 in the roller bearing groove; The dual-side of the blackboard eraser groove 3 vertical with the roller bearing groove is provided with sealing gasket 4; The upper surface of said roller bearing 2 is concordant with the upper end of sealing gasket 4, and the two roller bearings sealing gasket concordant with two formed sealed space, prevents to wipe the dust that gets off and flies upward everywhere.
Also be provided with meal outlet 7 on the housing 1, meal outlet is communicated with dust collection case 8, and the utility model is preferred, and meal outlet 7 is vertical with blackboard eraser groove 3.Be provided with spring 5 in the cavity between blackboard eraser 10 and the housing 1, spring 5 one ends are fixed on the blackboard eraser 10, and the other end is fixed on the housing 1.During use, hand makes the blackboard eraser holddown spring by blackboard eraser, and bristle is concordant with roller bearing, grips conveniently in order to make, and the outer surface of said housing 1 is provided with the handle 9 of outside protrusion.
Claims (8)
1. a dust absorption blackboard eraser comprises housing, and housing is provided with blackboard eraser groove and roller bearing groove; It is characterized in that: the roller bearing groove is arranged on the two relative outsides of blackboard eraser groove, is provided with blackboard eraser in the described blackboard eraser groove, fasten bristles on the blackboard eraser; Be provided with roller bearing in the roller bearing groove, the dual-side of the blackboard eraser groove vertical with the roller bearing groove is provided with sealing gasket, and the upper surface of said roller bearing is concordant with the upper end of sealing gasket; Also be provided with meal outlet on the housing, meal outlet is communicated with the dust collection case.
2. dust absorption blackboard eraser according to claim 1 is characterized in that: the cell wall plug-in mounting between described blackboard eraser groove and the roller bearing groove or be inlaid on the housing, and in described blackboard eraser plug-in mounting or the setting-in blackboard eraser groove.
3. dust absorption blackboard eraser according to claim 2 is characterized in that: the side of described blackboard eraser is provided with projection, and the blackboard eraser groove is provided with the draw-in groove that matches with projection with cell wall between the roller bearing groove, and described blackboard eraser is inlaid in the blackboard eraser groove.
4. dust absorption blackboard eraser according to claim 1 is characterized in that: be provided with elastomeric element in the cavity between described blackboard eraser and the housing, an end of elastomeric element is fixed on the blackboard eraser, and the other end is fixed on the housing.
5. dust absorption blackboard eraser according to claim 4 is characterized in that: described elastomeric element is a spring, and described spring is 2-4.
6. dust absorption blackboard eraser according to claim 1 is characterized in that: described meal outlet is vertical with the blackboard eraser groove.
7. dust absorption blackboard eraser according to claim 1 is characterized in that: the outer surface of said housing is provided with the handle of outside protrusion.
8. dust absorption blackboard eraser according to claim 1 is characterized in that: described housing is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201484234U CN202528715U (en) | 2012-04-10 | 2012-04-10 | Dust-collection blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201484234U CN202528715U (en) | 2012-04-10 | 2012-04-10 | Dust-collection blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202528715U true CN202528715U (en) | 2012-11-14 |
Family
ID=47129918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201484234U Expired - Fee Related CN202528715U (en) | 2012-04-10 | 2012-04-10 | Dust-collection blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202528715U (en) |
-
2012
- 2012-04-10 CN CN2012201484234U patent/CN202528715U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140410 |