CN209022659U - A kind of dustproof blackboard of auto-erasing - Google Patents

Abstract

The utility model discloses it is a kind of can auto-erasing dustproof blackboard, including writing surface, fixed frame, the writing surface is the flexible material strip of annular, on writing surface close to the positive part of fixed frame be write area, close to the part at the fixed frame back side be clear area, writing surface rotates under the drive of motor, realizes the switching for writing area and clear area；The clear area further includes the cleaning Ministry of worker, the dedusting Ministry of worker, and the cleaning Ministry of worker is used to carry out cleaning treatment to clear area, is close to clear area with banister brush by scrub-brush, clear area is wiped；The dust of wiping is blowed to the dedusting Ministry of worker in fixed frame by blower；The dedusting Ministry of worker includes static pressure net, dedusting plate, basket strainer, and dust successively passes through the dedusting plate of the dedusting Ministry of worker, basket strainer and is adhered on dedusting plate and/or basket strainer；The utility model is structurally reasonable, writing surface and clean surface can be switched fast, and cleaning process is smooth, rapidly, has saved the time of manual wipping blackboard while having decreased injury of the dust to body.

Description

A kind of dustproof blackboard of auto-erasing

Technical field

The utility model belongs to teaching equipment technical field, is specifically related to a kind of dustproof blackboard of auto-erasing.

Background technique

Blackboard has very long history as teaching aid, from pitch-dark iron plate is coated before, develops to the materials such as frosted glass, But general blackboard remains traditional manual wipping on the market at present, generally require teacher stop wiping then followed by It teaches, the time more wasteful in this way, and directly with blackboard eraser wiping blackboard, the chalk dust peeled off from blackboard can be with wiping Movement diffusion everywhere, influence the health of teacher, the Dust Capacity that xerotripsis blackboard generates is generated much larger than when writing Dust Capacity, and its gap of blackboard eraser for using can rub uncleanly instead full of dust for a long time.

Utility model content

It, being capable of powder in auto-erasing plate face the purpose of the utility model is to provide a kind of dustproof blackboard of auto-erasing Ash and dispersing everywhere for dust can be prevented.

For above-mentioned purpose is better achieved, the utility model adopts the following technical solutions:

It is a kind of can auto-erasing dustproof blackboard, including writing surface, fixed frame, the writing surface is the flexible material of annular Band, on writing surface close to the positive part of fixed frame be write area, be clear area close to the part at the fixed frame back side, writing surface exists It is rotated under the drive of motor, realizes the switching for writing area and clear area；The clear area further includes the cleaning Ministry of worker, dedusting work Portion, the cleaning Ministry of worker is used to carry out cleaning treatment to clear area, including blower, the scrub-brush being arranged in fixed frame, fur Brush, scrub-brush is close to banister brush with clear area, and rotates under the action of motor, so that clear area be wiped；It is described The dust of wiping is blowed to the dedusting Ministry of worker in fixed frame by blower, so that dust successively passes through the dedusting plate of the dedusting Ministry of worker, dedusting Net is simultaneously adhered on dedusting plate or basket strainer.

Further, fagging is provided between the writing area and clear area of the writing surface, fagging is close to area is write, in book Support is provided when writing area's use.

Static pressure net is additionally provided between the dedusting plate and banister brush, the dynamic pressure of wind is converted static pressure by static pressure net, improves Filter efficiency.

Further, the dedusting plate is several pieces, and several dedusting plates are parallel to each other, and the gap ribbon supply powder between dedusting plate The air-flow of dirt passes through, and each plate body is all obliquely installed.

Further, the dedusting plate is obliquely installed, and bottom is additionally provided with dust-collecting box.

The utility model can at least reach it is following the utility model has the advantages that

(1) do not wipe manually, only with start switch will just be turned to writing surface cleaning the Ministry of worker cleaning, it is cleaned complete At writing surface turn to the front of fixed frame, without waiting for.

(2) entire cleaning process does not generate dust, and the dust generated in erase process is blown away and is attached to by blower mostly On dedusting plate or basket strainer.

(3) wiping effect is more preferable, on the one hand banister brush takes away one by frictional force in the flexible writing surface rotation of insulation On the other hand part dust can generate electrostatic between two insulators, dust is attracted on banister brush by electrostatic force, therefore Wiping effect is more preferable.

(4) banister brush can touch fixed frame in rotation, and fixed frame is ground connection, the portion that banister brush is contacted with fixed frame Divide electrostatic that can be eliminated, dust can blow to dedusting plate by blower, so that the probability of banister brush adherency dust reduces, to reduce Cleaning frequency.

(5) dedusting plate, basket strainer are connect with power supply module, and with electrically when work, the ability for adsorbing dust is stronger.

(6) it is provided with wind deflector before dedusting module, air-flow dynamic pressure can be changed into static pressure, air balance is made to pass through dedusting Gap between plate.

Detailed description of the invention

By the detailed description below for the utility model embodiment, the utility model will be disclosed more fully hereinafter Foregoing and other object and feature become apparent it, should be considered in conjunction with the accompanying subsequent detailed description, In identical appended drawing reference refer to identical part, and wherein:

Fig. 1 is the positive structure schematic of the utility model；

Fig. 2 is the utility model structure schematic diagram；

Fig. 3 is the structural schematic diagram of the depression angle of the utility model；

Wherein: 1- storage box, the first motor unit of 21-, the second motor unit of 22-, 23- third motor unit, 24- the 4th Motor unit, 25 drive rods, 3- writing surface, 31- fagging, 4- fixed frame, 51- blower, 52- scrub-brush, 53- banister brush, 61- are removed Dirt plate, 62- basket strainer, 63- dust-collecting box, 64- static pressure net, 7- ventilation opening.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments；Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

In the description of the present invention, it should be noted that term " on ", "lower", "left", "right", "vertical", " water It is flat ", "inner", the instructions such as "outside" orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings, merely to just In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention；In addition, term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements；For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Embodiment

It is a kind of dustproof blackboard of auto-erasing as shown in Fig. 1 ~ 3, including writing surface 3, fixed frame 4, the cleaning Ministry of worker, removes The dirt Ministry of worker starts simultaneously at work power cut-off simultaneously wherein circuit connection is series connection between all Ministry of worker.

The fixed frame 4 is the outer housing of entire blackboard, remaining part is arranged at wherein, the positive face of fixed frame 4 Plate hollow out exposing writing surface 3 is for a person to use, and the backboard of fixed frame 4 is fixed on the wall and does grounding, prevents motor electric leakage same When can guide the electrostatic generated on banister brush 53, three Fans 51, the right side of fixed frame 4 are fixed on the left plate of fixed frame 4 Ventilation opening 7 is provided on side plate, for the wind of the generation of blower 51 to be discharged, in addition the bottom plate of fixed frame 4 is additionally provided with storage box 1, It is user-friendly for storing teaching aid.

As shown in Fig. 2, the position close to 4 left side plate of fixed frame is provided with the first motor unit 21, the second motor unit 22, the first motor unit 21 be by be arranged on 4 top plate of fixed frame and bottom plate share a drive rod two motor drive mechanisms at, The structure composition of second motor unit 22 is identical as the first motor unit 21, two drive rods 25 of the first, second motor unit The writing surface 3 of annular is tightened into two parallel planes, as shown in figure 3, by writing surface 3 close to the positive part of fixed frame 4 Area is referred to as write, writing surface is clear area close to the part at 4 back side of fixed frame, can be driven by the rotation of two motor units Writing surface 3 is rotated along the arrow direction in such as Fig. 3；In addition it is arranged in parallel with fagging 31 between writing area and clear area, supportted The upper of plate 31 is connected and fixed with the top plate bottom plate of fixed link below, and fagging 31 is close to the writing area of writing surface 3, to provide when writing Support only leans on two motor units to tighten writing surface 3, will affect using effect if not adding fagging 31.

As shown in Fig. 2, the cleaning Ministry of worker includes blower 51, scrub-brush 52, banister brush 53, fixed frame 4 is arranged in blower 51 Left plate is successively from left to right scrub-brush 52, banister brush 53, and in motor unit rotation, writing surface is from left to right moved, band The dedusting Ministry of worker, scrub-brush 52, banister brush 53 can successively be entered after scrub-brush 52, banister brush 53 by having the writing surface 3 of chalk dust Respectively by third motor unit 23, the control rotation of the 4th motor unit 24, the bristle of scrub-brush 52 is distributed in third motor unit Drive rod 25 on, bristle can come into full contact with writing surface 3 when rotated, by the chalk dust on most of blackboard from writing surface 3 Upper removing is simultaneously moved with the wind direction ventilation opening 7 that blower 51 generates, and the structure of banister brush 53 is identical as scrub-brush 52, banister brush 53 Bristle is longer than scrub-brush, rotation Shi Huiyu writing surface 3,4 backboard of fixed frame contact, banister brush 53 when being contacted with writing surface 3, It can rub and generate electrostatic, chalk dust remaining on writing surface 3 can be removed writing surface 3, part under the action of electrostatic and frictional force Chalk dust is moved with the wind direction dedusting Ministry of worker of blower 51, remaining chalk dust can be adhered to banister brush 53 under the action of electrostatic On, when banister brush 53, which is turned to, to be contacted with the backboard of fixed frame 4, since 4 backboard of fixed frame is grounded, so that banister brush 53 and solid The when electrostatic for determining the contact of 4 backboard of frame is eliminated, and the chalk dust for being adsorbed on banister brush 53 due to electrostatic force originally can be because lose Electrostatic force and blown away by the wind of blower 51.

It should be understood that in actual use, cover box can be respectively set in the top plate and bottom plate of fixed frame 4, will fix Motor outside frame 4 all covers, and reduces human accident and improves the beauty of appearance, but in the present embodiment, for preferably exhibition Show structure, does not embody the structure of cover box in attached drawing.

It can be cleaned from the writing area that the cleaning Ministry of worker comes out, and be had largely from the wind that the cleaning Ministry of worker blows out Dust, the dedusting Ministry of worker are exactly the part that the impurity that will be had in wind is filtered comprising dedusting plate 61, basket strainer 62, dust Box 63, static pressure net 64, power supply module, wherein basket strainer 62, dedusting plate 61 are connect with power supply module, from power supply module to the two With charge on basket strainer 62, dedusting plate 61 when power supply makes work, dust is adsorbed because of its small in size easily captured by electric field On dedusting plate 61, as shown in Fig. 2, be additionally provided with static pressure net 64 before dedusting plate 61, static pressure net 64 and 4 top plate and bottom plate of fixed frame, Backboard is fixed, close but do not contact with writing surface 3, for balancing the wind pressure of blower 51, it is made uniformly to pass through dedusting plate 61, this It is because the wind that blows out of blower 51 in being unevenly distributed for plumb cut, that is, blows air over same after hairbrush Dedusting plate 61, the fast some places wind speed of some places wind speed is slow, and the dust that the fast place of wind speed has been adsorbed may be removed by blowing off Dirt plate, and static pressure net 64 can convert the dynamic pressure of wind to static pressure, to allow the flow to flow evenly through each piece of dedusting plate 61；As shown in Fig. 2, the setting parallel to each other of several identical dedusting plates 61 is in the dedusting Ministry of worker, as shown in figure 3, dedusting The left side of plate 61 is fixedly connected with the backboard of fixed frame 4, and 61 right edge of dedusting plate is close to writing surface 3 but does not connect with writing surface 3 Touching, the self weight of dedusting plate 61 less and when working are not required to undertake vertical load, so only connecting by the way that the backboard with fixed frame 4 is fixed The stabilization that can guarantee dedusting plate 61 is connect, identical the passing through for dust air-flow in gap between adjacent dedusting plate, and dedusting plate 61 and writing surface 3 gap much smaller than the gap between dedusting plate, the air-flow with dust is difficult between dedusting plate 61 and writing surface Gap outflow, even if the air-flow with dust from the gap of dedusting plate and writing surface flow out, also can be because of the electrical property on dedusting plate 61 And be adsorbed on dedusting plate, it ensure that dust removing effects, and dedusting plate 61 is inclined in the dedusting Ministry of worker, due to powering off it Afterwards, dedusting plate 61 just no longer has charge, and the dust on dedusting plate 61 will be slid downwardly into along the inclined plate surface of dedusting plate 61 In dust-collecting box 63, the recycling of dust is completed, the dust-cleaning principle of basket strainer 62 is identical as dedusting plate 61, and passes through electrostatic for dust Absorption, basket strainer include the string bag, screen frame, and screen frame is rectangle for fixing the string bag, and the outlet of the string bag is connect with screen frame, rectangle screen frame Three sides be fixedly connected respectively with the backboard of fixed frame, bottom plate, top plate, last a line close to writing surface 3 but not with book Write face contact, screen frame is not charged when use, string bag electrification, since dedusting plate 61 can complete the recycling to dust, dedusting substantially The dust of escape is mainly collected by net 62, guarantees that, without dust particles in the wind of output, basket strainer collects chalk dust Amount can't be very big, so not needing frequently to clean, simultaneously because dust is captured using electrostatic, so its aperture phase To, reduction resistance to wind big with the dust-collecting net of the prior art.

Embodiment as one preferred, first motor unit, the second motor unit are selected with a motor, and Adjust same rotating speed.

Embodiment as one preferred, the mesh aperture of the static pressure net is between 3 ~ 5 centimetres；The hole of the basket strainer Diameter is between 5 ~ 8 millimeters.

Embodiment as one preferred, the direction of rotation of first, second motor unit and third, the 4th motor Group is contrary.

In the present embodiment, the power supply module, dedusting plate, basket strainer, motor are the mature prior art, can be with It directly buys, therefore is not illustrated.

Claims (5)

1. a kind of dustproof blackboard of auto-erasing, including writing surface, fixed frame, it is characterised in that: the writing surface is annular Flexible material strip, on writing surface close to the positive part of fixed frame be write area, close to the part at the fixed frame back side be clear area, Writing surface rotates under the drive of motor, realizes the switching for writing area and clear area；

The clear area further includes the cleaning Ministry of worker, the dedusting Ministry of worker, and the cleaning Ministry of worker is used to carry out clear area cleaning treatment, packet The blower being arranged in fixed frame, scrub-brush, banister brush are included, scrub-brush is close to banister brush with clear area, and in the work of motor With lower rotation, so that clear area be wiped；The dust of wiping is blowed to the dedusting Ministry of worker in fixed frame by the blower；It is described The dedusting Ministry of worker includes static pressure net, dedusting plate, basket strainer, and the wind of blower carries dust and successively passes through the dedusting plate of the dedusting Ministry of worker, removes Dirt net is simultaneously adhered on dedusting plate and/or basket strainer.

2. a kind of dustproof blackboard of auto-erasing according to claim 1, it is characterised in that: the writing area of the writing surface Fagging is provided between clear area, fagging provides support when writing area's use close to area is write.

3. a kind of dustproof blackboard of auto-erasing according to claim 1, it is characterised in that: the dedusting plate is several Block, several dedusting plates are parallel to each other, and the air-flow of the gap ribbon supply dust between dedusting plate passes through, and each plate body is all obliquely installed.

4. a kind of dustproof blackboard of auto-erasing according to claim 1, it is characterised in that: the dedusting plate and banister brush Between be additionally provided with static pressure net, the dynamic pressure of wind is converted static pressure by static pressure net, improves filter efficiency.

5. a kind of dustproof blackboard of auto-erasing according to claim 1, it is characterised in that: the bottom edge of the fixed frame is set Locker is equipped with for holding teaching aid.