CN206826266U - A kind of blackboard deashing device - Google Patents

Abstract

A kind of blackboard deashing device, upper box (1) and lower box (2) including being separately positioned on blackboard (3) upper and lower part, the top of the lower box (2) is provided with dust stratification groove (4), on the dust stratification groove (4) water tank (7), control device (8) and air pump (9) are internally provided with covered with filter screen (5), the lower box (2)；In the presence of air pump (9), air flows out from the open portion of upper box (1), air-flow from top to bottom is formed on blackboard (3) surface, chalk dust is blown into the dust stratification groove (4) of lower box (2) by air-flow, it is inhaled into therewith in water tank (7), the air for being mingled with chalk dust enters water tank (7) via the air inlet of bottom, chalk dust separates after being mixed with water with air, clean gas outlet of the air through water tank upper reenters air pump (9), chalk dust efficiently can be thoroughly removed, avoids chalk dust from repeatedly flying upward and pollutes.

Description

A kind of blackboard deashing device

Technical field

The utility model belongs to teaching equipment technical field, and in particular to a kind of blackboard deashing device.

Background technology

Blackboard and chalk, academics and students be again it is familiar only.It can all contact daily, contact chalk, naturally It can't do without contacting chalk dust.On classroom, teachers are erasable for several times, lower class hour, often on hand, on sleeve, or even hair, shoulder One layer of white chalk dust is all left on wing.Day by day, year after year, they inevitably suck some chalks from nostril Ash.Chalk dust belongs to PM10 particulate matters, and dust is the polluter being dispersed in granular form in air-flow and air, total suspension Aerodynamics equivalent diameter≤10 micron in grain thing, the part particulate matter easily sucked by nose and mouth, are expressed as PM10.

Chalk is nontoxic, but chalk dust is harmful to.The particulate of chalk dust has very strong germ adsorption capacity, and the composition of chalk is Alkaline matter.Harmful levels of pathogens, alkaline matter easily cause inflammation to the respiratory system of Faculty and Students, skin and ear nose throat. Student undertakes the task of erasing the board again from morning to night in classroom, and the health hazard of the chalk dust minority student poor to resistance is more Greatly.It is that chalk dust effectively can not be eliminated and collect that chalk dust, which flies upward main cause, causes repeatedly to fly upward pollution for a long time.On classroom Writing on the blackboard will be made with chalk daily, all live in daily in the chalk dust after blackboard wiping, still can cause nose, pharynx, throat not It is suitable.For quite a long time at present and from now on, teacher can write with chalk word, unlikely be attended class with mouth mask.

Therefore, being badly in need of one kind effectively can remove equipment or product by chalk dust, allow the health of student and teacher to be no longer influenced by Threaten.

Utility model content

In order to overcome in the prior art chalk dust be effectively eliminated and collect, cause repeatedly to fly upward the technology of pollution for a long time and ask Topic, the utility model provide a kind of blackboard deashing device.

Used technical scheme is the utility model to achieve the above object：A kind of blackboard deashing device, including respectively The upper box and lower box of blackboard upper and lower part are arranged on, the bottom of the upper box is uncovered structure, the lower box Top is provided with dust stratification groove, covered with filter screen on the dust stratification groove, the lower box be internally provided with water tank, control device and Air pump, the lower openings of the dust stratification groove are connected with being arranged on the air inlet of water tank bottom by pipeline, the water tank upper Gas outlet be connected with the air inlet of air pump, the air outlet of air pump is connected with upper box by pipeline, the water tank upper Gas outlet at be provided with spongy layer, the air pump is electrically connected with control device, and control device is connected with power supply.

Further, particulate matter sensors, the particulate matter sensors and control are additionally provided with below the upper box Device electrically connects, and particulate matter sensors can use model SDS011 PM10 particulate matter sensors.

Further, the cabinet door of opposite opened is additionally provided with the lower box.

Compared with prior art, the beneficial effects of the utility model are：In the presence of air pump, air is from upper box Open portion's outflow, forms air-flow from top to bottom, chalk dust is blown into the dust stratification groove of lower box by air-flow, therewith on blackboard surface Be inhaled into water tank, be mingled with the air of chalk dust and enter water tank via the air inlet of bottom, chalk dust mixed with water after with sky Qi leel is from gas outlet of the clean air through water tank upper reenters air pump, forms new circulation ash disposal process, efficiently thorough The collection at bottom and the chalk dust removed the chalk dust in dust stratification groove and taken up when erasing the board, avoid chalk dust from repeatedly flying upward and cause Pollution；Particulate matter sensors can collect the particle concentration of chalk dust in blackboard superficial air, and the parameter collected is believed Breath is sent to control device, and when particle concentration reaches default numerical value, control device automatically turns on air pump, reaches automatic Remove the function of chalk dust, further increase the efficiency for removing chalk dust, can in time, it is efficient and thoroughly remove chalk Ash, so as to protect Faculty and Students not perplexed by indoor airborne dust, the health of teachers and students is allowed to be no longer influenced by threat.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the positive structural representation of the utility model；

Fig. 3 is the structural representation of the utility model side；

Fig. 4 is the structural representation of filter screen in the utility model；

Fig. 5 is the utility model control structure theory diagram.

In figure：1 upper box, 2 lower boxes, 3 blackboards, 4 dust stratification grooves, 5 filter screens, 6 pipelines, 7 water tanks, 8 control dresses Put, 9 air pumps, 10 air inlets, 11 gas outlets, 12 spongy layers, 13 particulate matter sensors, 14 cabinet doors.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Refer to Fig. 1-5, the utility model provides a kind of blackboard deashing device, including be separately positioned on the top of blackboard 3 and The upper box 1 and lower box 2 of bottom, the bottom of the upper box 1 is uncovered structure, and the top of the lower box 2 is provided with receipts Collection falls and simultaneously deposits the dust stratification groove 4 of chalk dust, covered with filter screen 5 on the dust stratification groove 4, the effect of filter screen 5 be place chalk and Chalkboard eraser and other items, chalk dust can be fallen in dust stratification groove 4 under the gap of filter screen 5, and the foreign matter that again volume can be prevented larger falls The interior influence device operating of water tank 7 is inhaled into after entering dust stratification groove 4, the lower box 2 is internally provided with water tank 7, the and of control device 8 Air pump 9, the lower openings of the dust stratification groove 4 are connected with being arranged on the air inlet 10 of the bottom of water tank 7 by pipeline 6, the water The gas outlet 11 on the top of case 7 is connected with the air inlet of air pump 9, and the air outlet of air pump 9 is connected with upper box 1 by pipeline 6, When power-on and when starting control device 8, in the presence of air pump 9, air flows out from the open portion of upper box 1, black The surface of plate 3 forms air-flow from top to bottom, and chalk dust is blown into the dust stratification groove 4 of lower box 2 by air-flow, is inhaled into water tank 7 therewith In, the water that prevents from being more than, which is inhaled into air pump 9 and influences device, effectively to be run, and the water in water tank 7 should be controlled in the capacity of water tank 7 Less than 1/3rd, be mingled with the air of chalk dust and enter water tank 7 via the air inlet 10 of bottom, after chalk dust mixes with water and Air separates, and gas outlet 11 of the clean air through the top of water tank 7 reenters air pump 9, form new circulation ash disposal process, The chalk dust for efficiently thoroughly collecting and removing the chalk dust in dust stratification groove 4 and being taken up when erasing the board, avoids chalk dust multiple Fly upward and pollute；Spongy layer 12 is provided with the gas outlet 11 on the top of water tank 7, the spongy layer 12 is made up of water-absorbing sponge And certain gas permeability is carried, effect is to absorb the moisture for splashing at gas outlet 11 and being more than, and avoids water being drawn into air pump 9 In, the air pump 9 is electrically connected with control device 8, and control device 8 is connected with power supply.

The present apparatus is automatically controlled for further realization, the lower section of the upper box 1 is additionally provided with particulate matter sensors 13, institute State particulate matter sensors 13 to electrically connect with control device 8, particulate matter sensors 13 can collect chalk in the superficial air of blackboard 3 The particle concentration of ash, control device 8 is sent to by the parameter information collected, when particle concentration is up to 150 micrograms/cubic meter When, control device 8 automatically turns on air pump 9, opens the automatic function of removing chalk dust, further increases and remove chalk dust Efficiency, can in time, efficiently and thoroughly remove chalk dust, so as to protect Faculty and Students not perplexed by indoor airborne dust, allow The health of teachers and students is no longer influenced by threat, it is preferred that particulate matter sensors 13 can be passed using model SDS011 PM10 particulate matters Sensor.

Further to improve the using effect of the present apparatus, the cabinet door 14 of opposite opened, increase are additionally provided with the lower box 2 The storage area of teaching aid, can also make the outward appearance of whole device seem more neat and artistic.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (3)

1. a kind of blackboard deashing device, including the upper box (1) and lower box (2) of blackboard (3) upper and lower part are separately positioned on, It is characterized in that：The bottom of the upper box (1) is uncovered structure, and the top of the lower box (2) is provided with dust stratification groove (4), On the dust stratification groove (4) water tank (7), control device (8) and sky are internally provided with covered with filter screen (5), the lower box (2) Air pump (9), the lower openings of the dust stratification groove (4) are connected with being arranged on the air inlet (10) of water tank (7) bottom by pipeline (6) Connect, the gas outlet (11) on water tank (7) top is connected with the air inlet of air pump (9), the air outlet and top box of air pump (9) Body (1) is connected by pipeline (6), and gas outlet (11) place on water tank (7) top is provided with spongy layer (12), the air pump (9) electrically connected with control device (8), control device (8) is connected with power supply.

2. blackboard deashing device as claimed in claim 1, it is characterised in that：It is additionally provided with below the upper box (1) Grain thing sensor (13), the particulate matter sensors (13) electrically connect with control device (8).

3. blackboard deashing device as claimed in claim 1, it is characterised in that：Opposite opened is additionally provided with the lower box (2) Cabinet door (14).