CN205168001U - Novel blackboard eraser with high -efficient dust removal function - Google Patents

Abstract

The utility model provides a novel blackboard eraser with high-efficiency dust removal function, comprising: an eraser shell, a purification gas outlet, a motor, fan blades, an airflow swirl bin, a dust filter, a pressing trigger device, a dust storage box, and a dust-containing gas inlet , Erase effective surface, rubber masking strip. The utility model provides a new type of blackboard eraser with high-efficiency dust removal function, which has the advantages of reasonable design, simple structure, high-efficiency operation, simple operation, strong practicability, etc., and not only overcomes the problem that a large amount of dust is generated when the traditional sea-surface blackboard eraser is wiped , It also overcomes the problem that a large number of white stains that are difficult to clean are easily formed on the blackboard after wet erasing and cannot be wiped and used immediately. The device has a large market potential and can be promoted in the market.

Description

A New Blackboard Eraser with Efficient Dust Removal Function

technical field

The utility model relates to a novel blackboard eraser with a high-efficiency dust removal function, which belongs to the field of design and application of teaching supplies.

Background technique

Traditional teaching utensils such as chalk and eraser have a history of thousands of years from ancient times to the present. Although the traditional teaching mode is being gradually replaced by multimedia teaching with the progress of society, blackboard writing teaching has irreplaceable advantages in many aspects such as reasoning. Teachers have been exposed to chalk dust for a long time, and they are prone to develop occupational diseases such as pneumoconiosis. . The existing blackboard erasers are mostly still traditional sponge type, which will form a large amount of dust when wiping the existing blackboard writing on the blackboard. In order to prevent dust, some schools use wet erasing. This method can play a good role in dust prevention, but it cannot be used when continuous writing is required. At the same time, the blackboard is easy to wipe after wet erasing Forms a large, hard-to-clean white smudge.

The existing intelligent blackboard eraser has a complex structure, relatively low practicability and dust removal efficiency, and is difficult to be widely promoted.

To this end, a new type of blackboard eraser with high-efficiency dust removal function is designed, which adopts the combination of intelligent vacuuming and traditional dry wiping, and can be wiped and used immediately when the board surface needs to be wiped. This device does not need to make any changes to other teaching equipment such as blackboards in the classroom, and its overall size is small, easy to operate, and can effectively remove dust, which has a positive effect on reducing the incidence of teachers' occupational diseases and improving the teaching air environment .

Contents of the invention

The purpose of the utility model is to provide a novel blackboard eraser with high-efficiency dust removal function.

The technical solution adopted by the utility model to solve the technical problem is: a new type of blackboard eraser with high-efficiency dust removal function, including: the eraser shell, the outlet of the purified gas, the motor, the fan blade, the airflow whirling bin, the dust filter net, and the press trigger device , a dust storage box, a dust-containing gas inlet, an effective erasing surface, and a rubber masking strip, which are characterized in that: a new type of blackboard eraser with a high-efficiency dust removal function has an eraser shell, and other components are inside the eraser shell; the bottom of the eraser In order to erase the effective surface, there are rubber covering strips around the effective surface; there are many circular dust-laden gas inlets arranged above the effective surface, above which is a dust storage box, and above the dust storage box is a dust filter. The net can filter dust and discharge air, and a press trigger device is installed inside the dust storage box; above the dust filter net is the airflow swirl chamber, above the airflow swirl chamber is the motor and fan blades, and the motor and fan blades are connected to drive the fan blades to rotate to form Negative pressure atmosphere, the upper part of the eraser shell has many small circular holes, which are the outlets of the purified gas.

The beneficial effect of the utility model is that: the negative pressure dust removal method is adopted, and the motor drives the rotating blade to rotate so that a negative pressure environment is formed inside the dust collection device, and the dust generated during the wiping process can be efficiently collected. The pull-out dust storage box is installed, which can easily remove the powder when the dust box is full of dust, which improves the convenience and reusability of the blackboard eraser. The rubber edge cover strip can be used during the blackboard wiping process. The slipstream dust plays a very good role in collecting, and at the same time, it can effectively protect the effective wiping surface. It adopts the automatic operation mode of pressing. When it is necessary to wipe the blackboard, gently press the eraser, and the dust removal device will automatically operate, avoiding unnecessary The waste of electric energy caused by the use of space-time.

Description of drawings

Fig. 1 is a schematic diagram of a novel blackboard eraser with an efficient dust removal function.

detailed description

Below in conjunction with accompanying drawing, a kind of novel blackboard eraser with efficient dust removal function of the utility model is further described.

In Fig. 1, 1-scraper shell, 2-purified gas outlet, 3-motor, 4-fan blade, 5-airflow swirling bin, 6-dust filter, 7-press trigger device, 8-dust storage box, 9- Dusty gas inlet, 10-wiping effective surface, 11-rubber masking strip.

A housing of a novel blackboard eraser with a high-efficiency dust removal function is an eraser housing 1, which can effectively fix other components and form a unified whole. The erasing effective surface 10 is used to erase the writing part of the layout, and the rubber masking strip 11 can collect the slipstream dust generated during the blackboard wiping process, and can effectively protect the erasing effective surface 10 simultaneously. The dust-laden gas inlet 9 is the inlet of the dust-laden gas. The dust storage box 8 adopts a pull-out type, which can easily remove the powder when the dust box is full of dust, which improves the convenience and reusability of the blackboard eraser. . Pressing the trigger device 7 can trigger the operation of the motor 3 when the blackboard eraser is pressed, so as to avoid the waste of electric energy caused by idling when not in use. Dust filter screen 6 can filter dust, discharge air. The rotation of the motor 3 can drive the rotation of the fan blade 4, and the rotation of the fan blade 4 can form a negative pressure environment in the airflow swirling chamber 5, and can efficiently collect dust generated during the wiping process. Purified gas outlet 2 is the gas outlet after dust removal.

A housing of a novel blackboard eraser with a high-efficiency dust removal function is an eraser housing 1, and other components are all inside the eraser housing. The bottom of the blackboard eraser is an effective surface for erasing 10, and the effective surface for erasing 10 is surrounded by rubber masking strips 11. Many circular dust-containing gas inlets 9 are arranged on the top of the erasing effective surface 10, the top of which is a dust storage box 8, and the top of the dust storage box 8 is a dust filter screen 6, and a pressing filter is installed inside the dust storage box 8. Trigger device7. The top of the dust filter screen 6 is the airflow whirling bin 5, and the top of the airflow whirling bin 5 is the motor 3 and the fan blades 4, and the motor 3 and the fan blades 4 are connected. The top of the blackboard eraser shell 1 has many circular apertures, which are purge gas outlets 2.

When the surface of the writing board needs to be wiped, a hand-held eraser shell 1 is aligned with the surface to be wiped and pressed gently, and the effective erasing surface 10 starts to erase the writing part. At this time, the dust removal system starts, and the motor 3 starts and drives the fan blades 4 to rotate so that the airflow swirl bin 5 forms a negative pressure atmosphere. At this time, the dust-containing gas is sucked into the dust collector through the dust-containing gas inlet 9, the dust-containing gas passes through the dust filter 6, and the dust is intercepted in the dust storage box 8, and the purified clean gas is discharged to the indoor air through the purified gas outlet 2 Environment. The rubber covering strip 11 can play the role of dust collection and protection wiping out the effective surface.

The utility model provides a new type of blackboard eraser with high-efficiency dust removal function, which has the advantages of reasonable design, simple structure, high-efficiency operation, simple operation, strong practicability, etc., and not only overcomes the problem that a large amount of dust is generated when the traditional sea-surface blackboard eraser is wiped , It also overcomes the problem that a large number of white stains that are difficult to clean are easily formed on the blackboard after wet erasing and cannot be wiped and used immediately. The device has a large market potential and can be promoted in the market.

Claims (1)

1. one kind has the novel blackboard eraser of high-effective dust-removing function, comprise: blackboard eraser shell, purified gas outlet, motor, fan blade, air-flow convolution storehouse, dust-filtering net, pressing flip flop equipment, dust storage box, dusty gas entrance, erasing significant surface, rubber hide bar, it is characterized in that: a kind of shell with the novel blackboard eraser of high-effective dust-removing function is blackboard eraser shell, and other parts are all in blackboard eraser enclosure; The below of blackboard eraser is erasing significant surface, and erasing significant surface surrounding is surrounded by rubber and hides bar; The top of erasing significant surface arranges the dusty gas entrance of many circles, and its top is dust storage box, be dust-filtering net above dust storage box, can Chalk-dust filtering, and discharge air, is also provided with pressing flip flop equipment in dust storage box inside; Dust-filtering is just air-flow convolution storehouse on the net, and air-flow convolution is motor and fan blade above storehouse, and motor is connected with fan blade, fan blade can be driven to rotate and form reduced pressure atmosphere, and many individual circular apertures have been opened on the top of blackboard eraser shell, are purified gas outlet.