CN202986557U - Dustproof blackboard eraser - Google Patents
Dustproof blackboard eraser Download PDFInfo
- Publication number
- CN202986557U CN202986557U CN 201220578716 CN201220578716U CN202986557U CN 202986557 U CN202986557 U CN 202986557U CN 201220578716 CN201220578716 CN 201220578716 CN 201220578716 U CN201220578716 U CN 201220578716U CN 202986557 U CN202986557 U CN 202986557U
- Authority
- CN
- China
- Prior art keywords
- eraser
- blackboard eraser
- dust
- rubbing head
- head seat
- 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
Links
- 239000004744 fabric Substances 0.000 claims abstract description 35
- 230000000994 depressogenic effect Effects 0.000 claims description 13
- 238000005304 joining Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
The utility model relates to teaching assistant appliances and particularly relates to a dustproof blackboard eraser. The dustproof blackboard eraser comprises a holding member and an eraser head arranged on the holding member, wherein the eraser head is formed on an eraser head seat; the surface of the holding member is concavely provided with a recess part which matches the eraser head seat in shape; the eraser head seat is embedded in the recess part and is spaced from the recess part through a cloth block; and at least the lower edge of the cloth block exceeds the holding member for a period of distance. The dustproof blackboard eraser has the advantages of enabling the eraser head to become a replaceable component as the eraser head is arranged on the eraser head seat of the dustproof blackboard eraser, and greatly reducing dust as the cloth block with the outer edge exceeding the blackboard eraser is fixed through the eraser head seat, and the flying dust is absorbed by the cloth block or falls downwards along with the cloth block when the blackboard is wiped. The whole blackboard eraser is simple in structure, can contain the dust efficiently, and achieves low use cost and the manufacturing cost having little difference from the cost of a normal blackboard eraser.
Description
Technical field
The utility model relates to the teaching appurtenance, is specifically related to a kind of dust-proof blackboard eraser.
Background technology
The mode that the schools in the most areas of present China still adopt chalk to write on blackboard is taught, so blackboard eraser remains articles for use indispensable in teaching.Existing common blackboard eraser is mainly three kinds of Brush type blackboard eraser, felt formula and sponge type blackboard erasers.The Brush type blackboard eraser can produce a large amount of dust in scale removal process, relative Brush type blackboard eraser, and the dust of felt formula and sponge type blackboard eraser is few, but easily wearing and tearing.But which kind of in above-mentioned three kinds of blackboard erasers no matter, its dust is only comparatively speaking, all can cause dust from flying in its use procedure, namely pollutes classroom environment, affects again teachers and students' health.
Although in existing patent and various technical literature and the technical scheme that has disclosed a large amount of blackboard erasers of avoiding dust, as adopt electrostatic absorption type blackboard eraser, built-in fans to form the ash-collecting blackboard eraser of negative pressure or have the blackboard eraser of other electrical structure, see but on market, this series products is considerably less, even can say basically do not put it over universal.Trace it to its cause, mainly that this type of blackboard eraser product exists manufacturing cost, use cost higher, use the keeping trouble to be unfavorable for the problem of classroom instruction, and also have other better ripe scheme to avoid the appearance of dust on market, as use clipboard collocation writing on blackboard to use, for example blank, ecru blackboard etc.The structure of this lettering pen is similar to pen with written form, can reach 100% dustless effect, can Reusability, use cost and common chalk are very nearly the same, and disposable input cost is lower, use common sponge blackboard eraser wiping to get final product, can substitute present blackboard and chalk comprehensively.For school, the blackboard eraser that electrical structure is purchased in infusion of financial resources is obviously more practical not as directly replacing with the ecru blackboard.
Therefore, on market, actual needs is a kind of simple in structure, the blackboard eraser that can effectively place dust, and the blackboard eraser that this blackboard eraser must also have that use cost is cheap, manufacturing cost and ordinary blackboard eraser cost are more or less the same.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of dust-proof blackboard eraser is provided, this dust-proof blackboard eraser is by being arranged on rubbing head on the rubbing head seat, make rubbing head become an interchangeable assembly, and by the fixing piece of cloth piece of this rubbing head seat, the cloth outer rim exceeds blackboard eraser, and the dust that descends slowly and lightly when erasing the board is adsorbed by cloth or with the downward landing of cloth, significantly reduced the appearance of dust.
In order to reach the foregoing invention purpose, a kind of dust-proof blackboard eraser that the utility model embodiment proposes is achieved through the following technical solutions:
A kind of dust-proof blackboard eraser, comprise gripping member and be arranged on rubbing head on this gripping member, it is characterized in that: described rubbing head is formed on a rubbing head seat, described gripping member surface is concaved with the depressed part of joining with described rubbing head seat shape, described rubbing head seat is inlaid in described depressed part and by a cloth and described depressed part interval, described cloth lower edge at least exceeds described gripping member one segment distance.
The described rubbing head seat tabular that is square.
Described rubbing head is sponge.
Described rubbing head is felt.
The outer rim of described cloth all exceeds described gripping member one segment distance.
Has the handle of the opposite side of being located at relatively described depressed part on described gripping member.
Compared with prior art, the utility model has the advantages that: this dust-proof blackboard eraser is by being arranged on rubbing head on the rubbing head seat, make rubbing head become an interchangeable assembly, and by the fixing piece of cloth piece of this rubbing head seat, the cloth outer rim exceeds blackboard eraser, the dust that descends slowly and lightly when erasing the board is adsorbed by cloth or with the downward landing of cloth, has significantly reduced the appearance of dust.Whole wiping blackboard structure is simple, can effectively place the blackboard eraser of dust, and have that use cost is cheap, manufacturing cost and ordinary blackboard eraser cost be more or less the same.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and easily understand.
Fig. 1 is the generalized section of a kind of dust-proof blackboard eraser of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, so that technical staff's of the same trade understanding:
As shown in Figure 1, label represents respectively: cloth 1, handle 2, rubbing head 3, rubbing head seat 4, gripping member body 5.
As shown in Figure 1, be a kind of dust-proof blackboard eraser of the utility model embodiment, comprise gripping member, cloth 1 and rubbing head seat 4.Wherein, rubbing head seat 4 tabular that roughly is square is formed with the rubbing head 3 of felt material on the one side surface, and rubbing head 3 is connected with rubbing head seat 4; Gripping member comprises gripping member body 5 and is formed on handle 2 on gripping member body 5, the opposite side of gripping member body 5 relative handles 2 offers the depressed part of joining with described rubbing head seat 4 shapes, this depressed part is rectangular-shaped structure equally, and rubbing head seat 4 can embed in it and form matched in clearance.Cloth 1 integral body with suitable thickness of rubbing head seat 4 compressings is inlaid in depressed part, that is to say that rubbing head seat 4 embeds in depressed part and passes through cloth 1 and described depressed part interval.The thickness of this cloth 1 should guarantee to have enough bonding strengths, difficult drop-off between rubbing head seat 4 and gripping member.The outer rim of cloth 1 should exceed the gripping member certain distance, see also Fig. 1, when blackboard eraser is vertical, the upper limb of cloth 1 only slightly exceeds gripping member, can't interfere with rubbing head 3 when it naturally droops, the distance that the left and right sides outer rim of cloth 1 exceeds is roughly the same, is advisable not interfere rubbing head 3, the lower edge of cloth 1 exceeds long distance, and naturally droops.The purpose of setting is like this, and when the blackboard eraser blackboard wiping, dust also falls from rubbing head 3 to external diffusion, and the outer rim of cloth 1 shelters from these dust, makes it fall or be attracted on cloth 1 along cloth, has reduced the diffusion of dust.Therefore, cloth 1 can be suitably moistening in use, perhaps adopts the fibers material of easy and glass triboelectrification to make, to play the effect of absorption dust.
When rubbing head 3 serious wear, can rubbing head seat 4 be pulled out by the traction cloth, the rubbing head seat that more renews afterwards gets final product.Cloth 1 can be selected to have the waste and old towel of suitable thickness, handkerchief, clothing cloth etc. and be made through cutting, and these assemblies can be changed according to demand at any time, have reduced use cost.
The utility model one of ordinary skill in the art be appreciated that; the above embodiment of the utility model is only one of preferred embodiment of the present utility model; be the length restriction; here can not all embodiments of particularize; any enforcement that can embody the utility model claim technical scheme is all in protection domain of the present utility model.
It should be noted that; above content is in conjunction with concrete embodiment further detailed description of the utility model; can not assert that the specific embodiment of the present utility model only limits to this; under the guidance of above-described embodiment; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection domain of the present utility model.
Claims (6)
1. dust-proof blackboard eraser, comprise gripping member and be arranged on rubbing head on this gripping member, it is characterized in that: described rubbing head is formed on a rubbing head seat, described gripping member surface is concaved with the depressed part of joining with described rubbing head seat shape, described rubbing head seat is inlaid in described depressed part and by a cloth and described depressed part interval, described cloth lower edge at least exceeds described gripping member one segment distance.
2. a kind of dust-proof blackboard eraser according to claim 1 is characterized in that: the described rubbing head seat tabular that is square.
3. a kind of dust-proof blackboard eraser according to claim 2, it is characterized in that: described rubbing head is sponge.
4. a kind of dust-proof blackboard eraser according to claim 2, it is characterized in that: described rubbing head is felt.
5. the described a kind of dust-proof blackboard eraser of according to claim 1-4 any one, it is characterized in that: the outer rim of described cloth all exceeds described gripping member one segment distance.
6. a kind of dust-proof blackboard eraser according to claim 5, is characterized in that: the handle that has the opposite side of being located at relatively described depressed part on described gripping member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578716 CN202986557U (en) | 2012-11-06 | 2012-11-06 | Dustproof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578716 CN202986557U (en) | 2012-11-06 | 2012-11-06 | Dustproof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986557U true CN202986557U (en) | 2013-06-12 |
Family
ID=48557769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220578716 Expired - Fee Related CN202986557U (en) | 2012-11-06 | 2012-11-06 | Dustproof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202986557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856923A (en) * | 2015-09-16 | 2016-08-17 | 陈杰 | Dustproof blackboard eraser cover |
-
2012
- 2012-11-06 CN CN 201220578716 patent/CN202986557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856923A (en) * | 2015-09-16 | 2016-08-17 | 陈杰 | Dustproof blackboard eraser cover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202378544U (en) | Magnetic writing board | |
| CN107031239A (en) | A kind of magnetic dustless environment protecting clipboard (blackboard) instrument | |
| CN202123865U (en) | Eraser capable of reducing chalk dust | |
| CN206475639U (en) | A kind of high efficiency board of education of English teaching | |
| CN201872490U (en) | Dustproof blackboard eraser | |
| CN204749660U (en) | Blackboard eraser for teaching | |
| CN204774276U (en) | English teaching is rule and is used blackboard eraser | |
| CN203920169U (en) | A kind of blackboard eraser of the use of imparting knowledge to students | |
| CN203078135U (en) | Non-dust blackboard eraser | |
| CN202062916U (en) | Adsorption blackboard eraser | |
| CN201154608Y (en) | Multipurpose touching pen | |
| CN203974307U (en) | Hydrojet pen | |
| CN206678638U (en) | Magnetic blackboard | |
| CN205167999U (en) | Dustproof blackboard eraser | |
| CN203995271U (en) | Soft bundle combination teaching plate | |
| CN201604439U (en) | Novel dust-absorbing blackboard eraser | |
| CN203766347U (en) | Environment-friendly blackboard eraser | |
| CN202242629U (en) | Double-sided dust-absorbing blackboard eraser | |
| CN202368205U (en) | Dustless blackboard eraser | |
| CN204414881U (en) | A kind of pressing Dustproof chalk | |
| CN204451668U (en) | Multifunctional pen and two-sided writing and drawing board | |
| CN201092196Y (en) | Dust-free magnetic blackboard | |
| CN202293946U (en) | Chalk dust collection box | |
| CN201941460U (en) | Dustproof blackboard eraser | |
| CN202242561U (en) | Novel message board |
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: 20130612 Termination date: 20131106 |