CN204451765U - Dustless eraser - Google Patents
Dustless eraser Download PDFInfo
- Publication number
- CN204451765U CN204451765U CN201420817322.0U CN201420817322U CN204451765U CN 204451765 U CN204451765 U CN 204451765U CN 201420817322 U CN201420817322 U CN 201420817322U CN 204451765 U CN204451765 U CN 204451765U
- Authority
- CN
- China
- Prior art keywords
- articulamentum
- housing
- dustless eraser
- support portion
- dust
- 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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- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
The utility model relates to a kind of Dustless eraser, its composition comprises a side opening and the housing of inner hollow, be packaged in the articulamentum at shell nozzle place, and the cleaning layer be fixed on articulamentum, the support portion of articulamentum being carried out to resiliency supported is provided with in housing, described cleaning layer, because support portion is to the resiliency supported of articulamentum, is the arc of evagination under nature.This Dustless eraser structure is simple, and result of use is good, is convenient to practical application.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of Dustless eraser.
Background technology
The dust pollution that blackboard eraser in use produces is very big to the health hazard of teachers and students, there is many designs to Dustless eraser at present, but certain structures is complicated, and some can not Reusability, and some result of use is bad, and therefore the Dustless eraser of practical application is little.
Utility model content
For solving the deficiencies in the prior art, the utility model provides the Dustless eraser that a kind of structure is simple, result of use is good.
For achieving the above object, Dustless eraser of the present utility model, its composition comprises a side opening and the housing of inner hollow, be packaged in the articulamentum at shell nozzle place, and the cleaning layer be fixed on articulamentum, the support portion of articulamentum being carried out to resiliency supported is provided with in housing, described cleaning layer, because support portion is to the resiliency supported of articulamentum, is the arc of evagination under nature.
Cleaning layer is in its natural state in the arc of evagination, and in use, due to the face contact of cleaning layer and blackboard, cambered surface is squeezed into plane, and the dust wiped out is housed in cleaning layer, to realize use effect of this Dustless eraser.When external force disappears, resiliency supported portion supports the arc that cleaning layer reverts to evagination, and this recovery process impels the dust in cleaning layer to be kicked down.
As the restriction to aforesaid way, described support portion is the spring be connected in housing.
As the restriction to aforesaid way, described support portion is be connected in housing and accompany the arc elastic plate reclining and arrange with articulamentum.
When support portion is arc elastic plate, articulamentum and support portion in the configuration state fitted tightly, in use, articulamentum can along with the concavo-convex change of support portion respective change.
As the restriction to aforesaid way, described cleaning layer is made up of the wiper rail of spaced setting.
Cleaning layer is set to spaced wiper rail structure, dust better can be accommodated in gap between wiper rail, in use, under the acting in conjunction of the wiping external force of resiliency supported portion and instability, gap between wiper rail can be suddenly big or suddenly small, form a kind of occlusion of alternately change, open configuration, be housed in gap by stable to make the dust wiped out.
As the restriction to aforesaid way, the articulamentum between adjacent wiper rail and arc elastic plate are respectively equipped with the dust-leaking hole that housing cavity is connected with the external world, and described housing bottom is openable.
The dust-leaking hole that housing cavity is connected with the external world is set and is beneficial to the pick-up performance strengthening blackboard eraser.During use, under the squeezing action of external force to cleaning layer, housing cavity space reduces, and inner air is extruded discharge by dust-leaking hole; Wiping completes external force and disappears, and resiliency supported portion reverts to nature, and housing cavity space increases, to absorb the dust suction that stores in wiper rail gap while outside air in housing, better enhance the pick-up performance of blackboard eraser, after a period of time uses, open housing, cleaning dust.
As the restriction to aforesaid way, the cross sectional shape of described dust-leaking hole is the funnel-form arranged to arc elastic plate direction by articulamentum.
Dust-leaking hole in funnel-form, is avoided due to the extruding of cleaning layer, dust-leaking hole being closed in use procedure, is beneficial to the suction to dust in its natural state.
As the restriction to aforesaid way, described wiper rail, by the neck be connected on articulamentum, is connected in the head composition on neck.
In sum, the Dustless eraser adopting the technical solution of the utility model to obtain, utilizes the vibrational power flow of cleaning layer and resilient supporting unit to reach collecting to dust, and simply, result of use is good, is convenient to practical application for its structure.
Accompanying drawing explanation
Do further to describe in detail to the utility model below in conjunction with the drawings and the specific embodiments:
Fig. 1 is the Dustless eraser structural representation of the utility model embodiment one;
Fig. 2 is the A-A line sectional view of Fig. 1;
Fig. 3 is the Dustless eraser structural representation of the utility model embodiment two;
In figure: 1, housing; 2, articulamentum; 3, elastic plate; 4, cleaning layer; 5, wiper rail; 6, the head of wiper rail; 7, the neck of wiper rail; 8, dust-leaking hole; 9, spring.
Detailed description of the invention
Embodiment one
The present embodiment relates to a kind of Dustless eraser, and as shown in Figure 1, Figure 2, it comprises the housing 1 of a side opening, inner hollow, and the bottom of housing 1 can be opened; Be packaged with articulamentum 2 at shell nozzle place, articulamentum 2 is the flannelette material of one deck flexible; In housing 1, be also provided with the elastic plate 3 in outer convex under nature articulamentum being carried out to resiliency supported, elastic plate 3 and articulamentum 2 are accompanied and are reclined, and double-layer structure fits tightly, and articulamentum 2 is respective change along with the concavo-convex change of elastic plate 3; Articulamentum 2 is fixed with cleaning layer 4, cleaning layer 4 is made up of spaced wiper rail 5, wiper rail 5 is for being connected to neck on articulamentum 27 and being connected in the version of the head 6 on neck, head width is greater than neck, make to be the state that opening reduces for accommodating the space of dust between adjacent wiper rail, be beneficial to the stable collecting of dust, the articulamentum between adjacent wiper rail makes housing cavity and the extraneous dust-leaking hole 8 be connected with arc elastic plate is provided with, and dust-leaking hole 8 is in funnel-form.
This Dustless eraser in use, cleaning layer contacts with blackboard, under the acting in conjunction of elastic plate 3 with unstable wiping external force, make in wiping process, gap between wiper rail 5 is suddenly big or suddenly small, form a kind of occlusion of alternately change, open configuration, be housed in gap to make the dust wiped out by stable, realize use effect of this Dustless eraser, simultaneously, the dust suction that is housed in gap in housing 1, is better realized the collecting effect to dust by the suction produced due to the change of housing 1 intracavity space.When external force disappears, elastic plate 3 reverts to the arc of evagination, and this recovery process impels the dust between wiper rail to be kicked down, and through use after a while, opens bottom housing 1, the dust of accumulation in cleaning housing 1.
In addition, the neck of wiper rail 5 and head also can be the shape with same widths besides the above.
Embodiment two
The present embodiment relates to a kind of Dustless eraser, as shown in Figure 3, it has the structure roughly the same with the Dustless eraser in embodiment one, difference is, resiliency supported portion in this Dustless eraser is the array spring 9 be connected in housing 1, the quantity that spring 9 quantity can be corresponding to wiper rail 5 is arranged, and the setting position of each spring 9 is for corresponding to each wiper rail 5.
Claims (7)
1. a Dustless eraser, comprise a side opening and the housing of inner hollow, be packaged in the articulamentum at shell nozzle place, and the cleaning layer be fixed on articulamentum, it is characterized in that: in housing, be provided with the support portion of articulamentum being carried out to resiliency supported, described cleaning layer, because support portion is to the resiliency supported of articulamentum, is the arc of evagination under nature.
2. Dustless eraser according to claim 1, is characterized in that: described support portion is the spring be connected in housing.
3. Dustless eraser according to claim 1, is characterized in that: described support portion is be connected in housing and accompany the arc elastic plate reclining and arrange with articulamentum.
4. Dustless eraser according to claim 3, is characterized in that: described cleaning layer is made up of the wiper rail of spaced setting.
5. Dustless eraser according to claim 4, is characterized in that: the articulamentum between adjacent wiper rail and arc elastic plate are respectively equipped with the dust-leaking hole that housing cavity is connected with the external world, and described housing bottom is openable.
6. Dustless eraser according to claim 5, is characterized in that: the cross sectional shape of described dust-leaking hole is the funnel-form arranged to arc elastic plate direction by articulamentum.
7. the Dustless eraser according to any one of claim 4 ~ 6, is characterized in that: described wiper rail, by the neck be connected on articulamentum, is connected in the head composition on neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817322.0U CN204451765U (en) | 2014-12-22 | 2014-12-22 | Dustless eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817322.0U CN204451765U (en) | 2014-12-22 | 2014-12-22 | Dustless eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204451765U true CN204451765U (en) | 2015-07-08 |
Family
ID=53658702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420817322.0U Expired - Fee Related CN204451765U (en) | 2014-12-22 | 2014-12-22 | Dustless eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204451765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223112A (en) * | 2018-08-14 | 2019-01-18 | 周建萍 | A kind of ultrasonic scalpel |
| CN111743605A (en) * | 2018-08-15 | 2020-10-09 | 史国民 | Scalpel system with detector |
-
2014
- 2014-12-22 CN CN201420817322.0U patent/CN204451765U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223112A (en) * | 2018-08-14 | 2019-01-18 | 周建萍 | A kind of ultrasonic scalpel |
| CN111743605A (en) * | 2018-08-15 | 2020-10-09 | 史国民 | Scalpel system with detector |
| CN111743604A (en) * | 2018-08-15 | 2020-10-09 | 史国民 | Scalpel system with detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20181222 |