CN105346313A

CN105346313A - Electrostatic dust prevention blackboard eraser capable of spraying water

Info

Publication number: CN105346313A
Application number: CN201510798232.0A
Authority: CN
Inventors: 费虹
Original assignee: Huaying Shuanghe No2 Primary School
Current assignee: Huaying Shuanghe No2 Primary School
Priority date: 2015-11-19
Filing date: 2015-11-19
Publication date: 2016-02-24

Abstract

The invention discloses an electrostatic dust prevention blackboard eraser capable of spraying water. The electrostatic dust prevention blackboard eraser comprises an insulation box and a water sprayer. A mounting cavity is formed in the insulation box. A blackboard brush, aluminum foil and a plastic board are sequentially arranged at the open end of the mounting cavity from outside to inside. The peripheral edge of the aluminum foil and the peripheral edge of the plastic board are bonded to the inner side of the open end of the insulation box through insulation bonding boards. A fixed box is arranged in the mounting cavity. Tourmaline is arranged in the fixed box and connected with the plastic board through a wire. The water sprayer comprises a water storage barrel. An atomization spray head and a water outlet button are arranged at the two ends of the water storage barrel respectively. A buckle is arranged on the circumferential face of the water storage barrel. A clamping block with a clamping groove is arranged on the outer side of the upper end face of the insulation box. The water sprayer is detachably connected to the insulation box through cooperation of the buckle and the clamping groove. Dust can be adsorbed on the blackboard eraser through the electrostatic effect, and therefore dust flying is avoided, the content of chalk dust in air is lowered, the teaching environment is beautified, and environment pollution is reduced.

Description

The electrostatic dust prevention blackboard eraser that can spray water

Technical field

The present invention relates to a kind of teaching aid, belong to field of Education and teaching, specifically a kind of electrostatic dust prevention blackboard eraser of spraying water.

Background technology

In Traditional Method teaching, blackboard wants indispensable facility in each classroom, after blackboard using chalk write word, when not needing, blackboard eraser will be adopted to wipe.Blackboard eraser is in the past all that simple main body adds a hairbrush mostly, when wiping, the dust of chalk dust can disorderly fly everywhere, thus contaminated environment, bring harm to teachers and students' health, therefore a lot of teacher suffers from respiratory disease, and some used of a specified duration or second-rate blackboard, writing is difficult to wiped clean, brings inconvenience on duty for the day sweeping.

Summary of the invention

Problem to be solved by this invention is to provide a kind of electrostatic dust prevention blackboard eraser of spraying water, thus solve in the past when using blackboard eraser dust disorderly fly, contaminated environment and writing are difficult to the problem of wiping.

Based on above object, technical scheme provided by the invention is:

The electrostatic dust prevention blackboard eraser that can spray water, comprise insulation box body and water jet, insulation box body is the hollow rectangle structure of an opening, the inside of hollow rectangle structure is installation cavity, the openend of installation cavity is disposed with blackboard hairbrush from outside to inside, aluminium foil and plastic plate, described aluminium foil is bonded on plastic plate by solid gum, the edge of described aluminium foil and plastic plate is all bonded in the inner side of insulation box body openend by insulating sticky fishplate bar, described installation cavity inside is also provided with fixed bin, the tourmaline that can slide in fixed bin is provided with in fixed bin, tourmaline is by wire connection plastic flitch, described water jet comprises water storage cylinder, and the two ends of water storage cylinder are respectively arranged with atomizer and water outlet button, and described water storage cylinder periphery is also provided with buckle, the arranged outside of described insulation box body upper surface has the fixture block of band draw-in groove, and described water jet is coordinated with draw-in groove by buckle and dismountable being connected to is insulated on box body.

Described insulation booth body side surface is also provided with the press button for being switched on or switched off wire.

The lateral surface that described insulation booth body is positioned at the other end of openend is also provided with handle.

Compared to prior art, the invention has the advantages that: structure of the present invention is simple, reasonable in design, electrostatic effect can be utilized by adsorbing powder dust on blackboard eraser, thus prevent dust disorderly to fly, reduce the content of chalk dust in air, beautified teaching environment, decreased environmental pollution, simultaneously, water jet can be used to spray water, will the writing erasing of wiping be difficult to, and make blackboard keep clean.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Label in figure is expressed as: 1, blackboard hairbrush; 2, aluminium foil; 3, insulating sticky fishplate bar; 4, solid gum; 5, plastic plate; 6, press button; 7, insulate box body; 8, fixed bin; 9, handle; 10, tourmaline; 11, fixture block; 12, atomizer; 13, water storage cylinder; 14, buckle; 15, water outlet button.

Detailed description of the invention

In order to make those skilled in the art understand the present invention better, below in conjunction with the embodiment of the present invention and accompanying drawing, clear, complete explanation is carried out to technical scheme of the present invention.

Embodiment 1

The electrostatic dust prevention blackboard eraser of spraying water as described in Figure 1, comprise insulation box body 7 and water jet, insulation box body 7 is the hollow rectangle structure of an opening, the inside of hollow rectangle structure is installation cavity, the openend of installation cavity is disposed with blackboard hairbrush 1 from outside to inside, aluminium foil 2 and plastic plate 5, described aluminium foil 2 is bonded on plastic plate 5 by solid gum 4, the edge of described aluminium foil 2 and plastic plate 5 is all bonded in the inner side of insulation box body 7 openend by insulating sticky fishplate bar 3, described installation cavity inside is also provided with fixed bin 8, the tourmaline 10 that can slide in fixed bin 8 is provided with in fixed bin 8, tourmaline 10 is by wire connection plastic flitch 5, described water jet comprises water storage cylinder 13, and the two ends of water storage cylinder 13 are respectively arranged with atomizer 12 and water outlet button 15, and described water storage cylinder 13 periphery is also provided with buckle 14, the arranged outside of described insulation box body 7 upper surface has the fixture block 11 of band draw-in groove, and described water jet is coordinated with draw-in groove by buckle 14 and dismountable being connected to is insulated on box body 7.

In the present embodiment, aluminium foil 2, plastic plate 5 and tourmaline 10 form the electrostatic transmitter of a suggestion jointly, when blackboard eraser in use, tourmaline 10 is in fixed bin 8 random motion, thus with fixed bin 8 contact friction, due to the static characteristic of tourmaline 10, tourmaline 10 surface produces electrostatic, pass on plastic plate 5 by wire, now because aluminium foil 2 and plastic plate 5 all insulate, electrostatic produces charge inducing on aluminium foil 2, thus generation electrostatic, chalk dust is adsorbed on aluminium foil 2 under electrostatic interaction after being erased again, because tourmaline 10 continues to provide electrostatic, therefore dust suction can be continued in erase process, play good pick-up performance, decrease the pollution of dust, ensure that the health of teachers and students, beautify teaching environment.

When the writing on blackboard is difficult to wiping, water outlet button 15 can be extruded, thus the water in water storage cylinder 13 or cleaning agent are sprayed on blackboard by atomizer 12, re-use blackboard hairbrush 1 wiping, can very easily by writing wiped clean, and act on due to atomizer 12, the water of each ejection is atomization, amount is few, thus can ensure that blackboard can not drench after wiping, conveniently use immediately, and water jet is clamped by draw-in groove, thus for convenience detach, all very convenient when needs again fill water or take off.

In the present embodiment, aluminium foil 2 can not only be connected with plastic plate 5 by solid gum 4, also the two can be isolated simultaneously, and form similar capacitance structure, thus make aluminium foil 2 more can produce charge inducing, produces electrostatic; Insulating sticky fishplate bar 3 can prevent aluminium foil 2 from contacting with insulation box body 7 with plastic plate 5, thus avoids and extraneous contact, and electrostatic is run off, and it is also in order to avoid electrostatic runs off that insulation box body 7 insulate.

Embodiment 2

The present embodiment adds following structure on the basis of embodiment 1: described insulation box body 7 side is also provided with the press button 6 for being switched on or switched off wire.

The press button 6 of the present embodiment can being switched on or switched off of pilot, thus can when not using blackboard eraser break line, avoid not using generation electrostatic, avoid the teachers and students hired roughneck because of electrostatic in use.

Embodiment 3

The present embodiment adds following structure on the basis of embodiment 1 or embodiment 2, is specially: the lateral surface that described insulation box body 7 is positioned at the other end of openend is also provided with handle 9.

The present embodiment conveniently uses and picks and places, and reduces human hands simultaneously and contacts with insulation box body 7, and the special lateral surface being positioned at the other end of openend at the box body 7 that insulate arranges handle 9, and teachers and students can hold handle 9 and carry out blackboard eraser and remove, very convenient.

Well can realize the present invention as mentioned above.Scope of patent protection of the present invention is as the criterion with claims, the equivalent structure change that every utilization description of the present invention and accompanying drawing content are done, and in like manner all should be included in protection scope of the present invention.

Claims

1. the electrostatic dust prevention blackboard eraser can sprayed water, it is characterized in that: comprise insulation box body (7) and water jet, insulation box body (7) is the hollow rectangle structure of an opening, the inside of hollow rectangle structure is installation cavity, the openend of installation cavity is disposed with blackboard hairbrush (1) from outside to inside, aluminium foil (2) and plastic plate (5), described aluminium foil (2) is bonded on plastic plate (5) by solid gum (4), the edge of described aluminium foil (2) and plastic plate (5) is all bonded in the inner side of insulation box body (7) openend by insulating sticky fishplate bar (3), described installation cavity inside is also provided with fixed bin (8), the tourmaline (10) that can slide in fixed bin (8) is provided with in fixed bin (8), tourmaline (10) is by wire connection plastic flitch (5), described water jet comprises water storage cylinder (13), and the two ends of water storage cylinder (13) are respectively arranged with atomizer (12) and water outlet button (15), and described water storage cylinder (13) periphery is also provided with buckle (14), the arranged outside of described insulation box body (7) upper surface has the fixture block (11) of band draw-in groove, and described water jet is coordinated with draw-in groove by buckle (14) and dismountable being connected to is insulated on box body (7).

2. electrostatic dust prevention blackboard eraser of spraying water according to claim 1, is characterized in that: described insulation box body (7) side is also provided with the press button (6) for being switched on or switched off wire.

3. electrostatic dust prevention blackboard eraser of spraying water according to claim 1, is characterized in that: the lateral surface that described insulation box body (7) is positioned at the other end of openend is also provided with handle (9).