CN209634136U

CN209634136U - A kind of new and effective dust-removing blackboard eraser

Info

Publication number: CN209634136U
Application number: CN201920029421.5U
Authority: CN
Inventors: 章晗奕
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2019-11-15
Anticipated expiration: 2029-01-09

Abstract

Disclosed by the utility model is a kind of new and effective dust-removing blackboard eraser, shell including upper surface opening, shell has been embedded in one layer of conductive silk screen, the online lateral projection of conductive filament has several wave crests, spaced set between wave crest, trough is formed between adjacent peaks, mounting hole is offered in the inner walls at each trough both ends, and non-conductive shaft is rotatably installed between the mounting hole at each trough both ends, it is arranged in shaft and is fixed with rub piece, the downside of rub piece is tightly bonded to be in contact friction with trough surface, the upper side of rub piece stretches out the opening setting of shell end face, the utility model is laborsaving, extend the blackboard service life, chalk dust can be collected, it can also concentrate and topple over processing, structure is simple, it is easy to use, it is environment friendly and pollution-free, there is no chalk dust to fly upward, replaceable rub piece, it realizes and is recycled, it reduces Cost economizes on resources.

Description

A kind of new and effective dust-removing blackboard eraser

Technical field

The utility model relates to a kind of blackboard erasers, more specifically say, are related to a kind of new and effective dust-removing blackboard eraser, belong to Teaching equipment field.

Background technique

Blackboard is essential tool in teaching, for wiping the writing of chalk-writing on blackboard.It is wiped when with blackboard eraser When chalk writings on blackboard, since existing blackboard eraser cannot absorb chalk dust, student or teacher can make when erasing the board It obtains chalk dust to fly upward everywhere, influences the environment inside classroom, pollute, while the health care belt of academics and students is come centainly Harm, in continuous repetitive process, chalk dust enters the lung of teacher and student as maximum pollution sources, causes lung Deposition carrys out security risk to health care belt, especially maximum to front-seat student and teacher's harm is sitting in, and easily causes great body Injury.

The blackboard eraser with strainer is poor to dust adsorption effect currently on the market, while the later period is difficult to the dust in blackboard eraser To clear up, and it is laborious, time-consuming in wiping chalk word, it is big to the frictional force of blackboard, it is huge to the aging effects of blackboard.

Utility model content

In order to solve above-mentioned prior art problem, the utility model provide have dustless, pollution-free, laborsaving, structure is simple, A kind of new and effective dust-removing blackboard eraser of practical equal technical characterstics.

To achieve the goals above, the utility model is achieved through the following technical solutions:

A kind of new and effective dust-removing blackboard eraser, the shell including upper surface opening, the shell have been embedded in one layer of conduction Silk screen, the online lateral projection of conductive filament have several wave crests, spaced set between the wave crest, between the adjacent wave crest It is formed with trough, mounting hole is offered in the inner walls at each trough both ends, and between the mounting hole at each trough both ends Non-conductive shaft is rotatably installed, rub piece, the downside of the rub piece and trough are arranged and be fixed in the shaft Surface is tightly bonded in order to be in contact friction, and the upper side of the rub piece stretches out the opening setting of shell end face.

As an improvement storage box is provided between the conduction silk screen and housing bottom, on the shell one side Notch is offered, the storage box, which can be stretched out or be put in shell from notch, to be arranged.

As an improvement the notch is provided with the bottom of housing side, the notch both ends are respectively arranged with one Sliding slot, that slides between two sliding slots is provided with baffle, and slide damper is to be closed or expose notch.

As an improvement towards being connected with line style pull ring on the side of notch on the storage box.

As an improvement the storage box is identical as cross-sectional area size, the size of shell.

As an improvement being connected with a circle rubber membrane around the storage box opening edge edge.

As an improvement being formed with air bag filled with gas in the rubber membrane.

As an improvement 3/4ths areas of the rub piece side are tightly bonded with trough surface, the rub piece side The a quarter in face stretches out the opening of shell end face.

As an improvement the rub piece is wound by corduroy.

As an improvement the rub piece includes flocking core, the flocking core is wrapped with one layer of silk cloth.

The utility model has the advantages that rolling friction is laborsaving, and can reduce contact surface, dust residue is reduced, extends the blackboard service life；Rub piece With blackboard friction so that chalk dust electrification adsorbed by rub piece, due to rub piece roll and with conductive mesh contacts, work as chalk dust When dirt contacts conductive silk screen, dust electric discharge is fallen in shell to be scraped by conductive silk screen；Storage box can topple over storage in time Chalk dust can also concentrate so that can both collect chalk dust and topple over processing, structure is simple, easy to use；Environmental protection is without dirt Dye, no chalk dust are flown upward；It erases the board clean, quick；Of simple structure and strong practicability；It is at low cost, it can volume production；Wiping can be replaced Item is realized and is recycled, reduces cost, economize on resources.

Detailed description of the invention

Fig. 1 is the utility model blackboard eraser explosive view.

Fig. 2 is the utility model blackboard eraser overall structure diagram.

Specific embodiment

Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model be not limited to Lower embodiment.

It is as shown in Figs. 1-2 a kind of specific embodiment of new and effective dust-removing blackboard eraser, the embodiment one kind is new and effective Dust-removing blackboard eraser, the shell 1 including upper surface opening have been embedded in one layer of conductive silk screen 2, such as steel wire in shell 1, conductive Lateral projection has several wave crests 3 on silk screen 2, spaced set between wave crest 3, is formed with trough 4 between the adjacent wave crest 3, Mounting hole 5 is offered on 1 inner wall of shell at each 4 both ends of trough, and can be turned between the mounting hole 5 at 4 both ends of each trough Dynamic is equipped with non-conductive shaft 6, such as clinker stick, and rub piece 7, the downside of rub piece 7 and wave are arranged and be fixed in shaft 6 4 surface of paddy is tightly bonded in order to be in contact friction, and the upper side of rub piece 7 stretches out the opening setting of 1 end face of shell, used Journey: in writing on erasing blackboard, rub piece 7 is rolled, and rolling friction is laborsaving, due to rub piece 7 and seriticker friction, so that powder The electrification of dust is adsorbed by rub piece 7, and rub piece 7 continues to contact after rolling with conductive silk screen 2, when chalk dust contacts conductive silk screen 2, Dust electric discharge is fallen in shell 1 to be scraped easily by conductive silk screen 2, is rolled and is reduced contact surface, and dust residue is reduced, and is extended black In the plate service life, structure is simple, easy to use, environment friendly and pollution-free, and no chalk dust is flown upward, and erases the board clean, quick, at low cost, can Volume production can replace rub piece 7, realize and be recycled, reduce cost, economize on resources.

As an improvement embodiment, as shown in Figure 1, be provided with storage box 8 between conductive silk screen 2 and housing bottom, Offer notch 9 on 1 one side of shell, storage box 8, which can be stretched out or be put in shell 1 from notch 9, to be arranged, and storage box 8 can be with Topple over the chalk dust of storage in time, so that can both collect chalk dust, can also concentrate and topple over processing, structure is simple, user Just, storage box 8 may be implemented to topple over chalk dust from the stretching of notch 9, and storage box 8 is put in from notch 9 may be implemented to collect chalk dust.

As an improvement embodiment, notch 9 is provided with the bottom of 1 side of shell, and 9 both ends of notch are respectively arranged with one A sliding slot 10, that slides between two sliding slots 10 is provided with baffle 11, slide damper 11 to be closed or expose notch 10, baffle 11, The setting of sliding slot 10 so that storage box 8 will not uncontrolled skid off and cause chalk dust unrestrained.

As an improvement embodiment pass through towards line style pull ring 13 is connected on the side of notch 9 on storage box 8 Line style pull ring 13 is arranged, easy to use convenient for pulling out storage box 8.

As an improvement embodiment, storage box 8 is identical as cross-sectional area size, the size of shell 1, avoids storage box 8 cards ash, is not easy to collect.

As an improvement embodiment pass through rubber around 8 opening edge of storage box along a circle rubber membrane 12 is connected with Glue film 12 is arranged, further such that 8 periphery of storage box will not block ash, is easy to collect.

As an improvement embodiment, is formed with air bag filled with gas in rubber membrane 12, the rubber membrane 12 of gasbag-type makes Storage box 8 engage with 1 inner wall of shell it is tighter, collection chalk dust effect it is good.

As an improvement embodiment, 3/4ths areas of 7 side of rub piece are tightly bonded with 4 surface of trough, rub piece 7 The a quarter of side stretches out the opening of 1 end face of shell, and 3/4ths areas of 7 side of rub piece are tightly bonded with 4 surface of trough, So that the dust for scraping rub piece 7 is thorough, completely.

As an improvement embodiment, rub piece 7 is wound by corduroy, and at low cost, effect is good.

As an improvement embodiment, rub piece 7 includes flocking core, and the flocking core is wrapped with one layer of silk cloth, rubs It is low to wipe power, protects blackboard, extends the blackboard service life.

Finally it should be noted that the utility model is not limited to above embodiments, there can also be many variations.This field The those of ordinary skill's all deformations that directly can export or associate from content disclosed by the utility model, be considered as The protection scope of the utility model.

Claims

1. a kind of new and effective dust-removing blackboard eraser, it is characterised in that: the shell (1) including upper surface opening, the shell (1) are interior Be embedded with one layer of conductive silk screen (2), lateral projection has several wave crests (3) on the conduction silk screen (2), the wave crest (3) it Between spaced set, be formed with trough (4) between the adjacent wave crest (3), on shell (1) inner wall at each trough (4) both ends It offers mounting hole (5), and non-conductive shaft is rotatably installed between the mounting hole (5) at each trough (4) both ends (6), it is arranged and is fixed with rub piece (7) on the shaft (6), the downside of the rub piece (7) is tightly bonded with trough (4) surface In order to be in contact friction, the upper side of the rub piece (7) stretches out the opening setting of shell (1) end face.

2. a kind of new and effective dust-removing blackboard eraser according to claim 1, it is characterised in that: it is described conduction silk screen (2) with It is provided with storage box (8), is offered notch (9) on shell (1) one side, the storage box (8) between shell (1) bottom Setting in shell (1) can be stretched out or put in from notch (9).

3. a kind of new and effective dust-removing blackboard eraser according to claim 2, it is characterised in that: the notch (9) is provided with The bottom of shell (1) side, notch (9) both ends are respectively arranged with a sliding slot (10), slide between two sliding slots (10) It is provided with baffle (11), slide damper (11) is to be closed or expose notch (9).

4. a kind of new and effective dust-removing blackboard eraser according to claim 2 or 3, it is characterised in that: on the storage box (8) Line style pull ring (13) are connected on towards the side of notch (9).

5. a kind of new and effective dust-removing blackboard eraser according to claim 2 or 3, it is characterised in that: the storage box (8) with Cross-sectional area size, the size of shell (1) are identical.

6. a kind of new and effective dust-removing blackboard eraser according to claim 2 or 3, it is characterised in that: around the storage box (8) opening edge edge is connected with a circle rubber membrane (12).

7. a kind of new and effective dust-removing blackboard eraser according to claim 6, it is characterised in that: filled in the rubber membrane (12) There is gas to be formed with air bag.

8. a kind of new and effective dust-removing blackboard eraser according to claim 1 or 2 or 3, it is characterised in that: the rub piece (7) 3/4ths areas of side are tightly bonded with trough (4) surface, and a quarter of rub piece (7) side stretches out shell (1) The opening of end face.

9. a kind of new and effective dust-removing blackboard eraser according to claim 1, it is characterised in that: the rub piece (7) is by wick Flannelette is wound.

10. a kind of new and effective dust-removing blackboard eraser according to claim 1, it is characterised in that: the rub piece (7) includes planting Suede core, the flocking core are wrapped with one layer of silk cloth.