CN201211804Y - Chalkboard Erase Powder Machine - Google Patents

Abstract

The utility model discloses a blackboard erasing powder machine, which comprises a front casing and a rear casing which are movably connected. On the other side of the body, there are two slides along the longitudinal direction, and a working panel is inserted between the slides; a motor is installed in the rear shell, and the motor rotates to connect with the fan; on the front shell on the side where the slides are set There is an air suction port, and loose combs are arranged on the working panel and the front shell around the air suction port; the air suction port is connected with the air duct arranged in the front shell, and a check valve is installed at the outlet end of the air duct; A dust filter bag is provided in isolation from the joint in the rear shell. The utility model has the advantages of small volume, convenient use and obvious dedusting effect, which effectively improves the learning environment of the classroom, and at the same time deepens the concept of building an economical campus.

Description

Chalkboard Erase Powder Machine

technical field

The utility model relates to a dust removal device, in particular to a blackboard eraser powder machine used for removing blackboard eraser dust in classroom teaching.

Background technique

At present, blackboard erasers are still widely used in classroom teaching in most schools. The materials used for wiping blackboard erasers are mainly felt or flannelette, and these materials have limited space for chalk dust. In classroom teaching, because there is no special dust removal machine, the chalk dust cannot be removed in a timely and effective manner. The chalk dust in the blackboard eraser felt will soon be saturated. If it continues to be used, a large amount of dust will fly, endangering the health of teachers and students. Especially with the advancement of education methods, it will bring greater harm to the health of preschool children. And in this case, the blackboard is not easy to wipe clean, which affects classroom teaching. If adopt stick to beat or beat the method for blackboard eraser at blackboard edge place, can cause the secondary pollution of classroom and surrounding environment again. In addition, the long-term accumulation of dust will also affect the service life of the blackboard eraser, and the felt or flannelette will be discarded after being damaged, resulting in waste.

Utility model content

The purpose of the utility model is to provide a blackboard erasing powder machine which is easy to use and has good dust removal effect in view of the deficiencies in the prior art.

The technical scheme of the utility model is: a blackboard erasing powder machine, which is characterized in that it includes a front shell and a rear shell that are movably connected, and a connecting piece is arranged at the joint between the front shell and the rear shell , located on the other side of the front shell and the rear shell, there are two slides along the longitudinal direction, and a working panel is inserted between the two slides; a motor and a fan are installed in the rear shell, and the motor and the fan are connected in rotation ;A suction port is provided on the front housing on the side of the slideway, and loose combs are arranged on the working panel and the front housing around the suction port; the suction port is connected with the air duct arranged in the front housing, located A one-way valve is installed at the outlet end of the air duct in the housing; a dust filter bag is isolated at the connection between the front housing and the rear housing.

Compared with the prior art, the utility model has the following advantages:

The use of the utility model not only solves the problem that the dust accumulated in the blackboard eraser is difficult to remove, but also can collect a large amount of chalk dust in the blackboard eraser, so as to recycle and reuse resources. The utility model has the advantages of small size, convenient use, obvious effect and low cost, can effectively improve the learning environment of the classroom, and at the same time deepen the concept of building an economical campus. In addition, in addition to the working panel and loose comb, under the premise of ensuring the realization of functions, the appearance of the shell of the utility model can also adopt new or different appearance design schemes for different teaching occasions, thereby expanding the scope of use of the utility model .

Description of drawings

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

Fig. 2 is a top view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Fig. 1 and Fig. 2, the utility model includes a front casing 9 and a rear casing 2 which are movably connected, and the connection on one side of the front casing 9 and the rear casing 2 is provided with a joint for connecting the front and rear casings. The connector 11 of the body is located on the other side of the front shell 9 and the rear shell 2, and two slideways 12 are arranged in parallel in the longitudinal direction, and the working panel 1 is inserted between the two slideways 12; 2, a motor 3 and a centrifugal fan 4 are installed inside, and the motor 3 is rotationally connected with the centrifugal fan 4; an air suction port 6 is arranged on the front housing 9 on one side of the slideway 12, and the working panel 1 and the The front casing 9 is provided with a loose comb 5; the air suction port 6 is connected to the air duct 7 arranged in the front casing 9, and a rubber check valve 8 is installed at the outlet end of the air duct 7 in the front casing 9; A dust filter bag 10 is provided in isolation at the connection between the housing 9 and the rear housing 2 , and the dust filter bag 10 is installed on one side of the rear housing 2 .

The loosening comb 5 is composed of cylinders arranged vertically on the working panel 1 and the front housing 9 . The height of the cylinder is 3-8 mm.

The shape of the air suction port 6 is oval or rectangular, its width is 4-10 mm, and its length is equal to the width of the working panel 1 .

When the utility model works, at first turn on the power supply, open the power switch 14 that is arranged on the rear housing 2, the motor 3 drives the centrifugal fan 4 to rotate, and generates suction around the air suction port 6. Then the blackboard eraser is placed on the work panel 1, and moves back and forth along the slideway 12. When the blackboard eraser passes through the air suction port 6, the bristles or flannelette of the blackboard eraser are combed loosely by the loose comb 5, so that the blackboard eraser is adhered to the blackboard eraser. The chalk dust loosened, enters the air duct 7 through the air suction port 6. At this time, the rubber one-way valve 8 at the outlet end of the air duct 7 is in an open state under the effect of the internal and external pressure difference, and the chalk dust enters the front casing 9 through the rubber one-way valve 8 along with the air flow, and accumulates in the front casing 9. The lower dust chamber. The air entering the front housing 9 is filtered by the dust filter bag 10 and then discharged from the rear housing 2 . After using for a certain period of time, take off the work panel 1, open the connector 11, the front casing 9 can be pulled down, the chalk dust accumulated in the front casing 9 is collected and reclaimed, and the dust filter bag 10 and the casing are cleaned up simultaneously.

Claims (7)

1, a kind of blackboard eraser gumming machine, it is characterized in that: it comprises the procapsid (9) and the back casing (2) of flexible connection, the junction that is positioned at procapsid (9) and back casing (2) one sides is provided with connector (11), be positioned on the another side of procapsid (9) and back casing (2), be vertically arranged with two slideways (12), be fitted with working panel (1) between two slideways (12); Be positioned at back casing (2) motor (3) and blower fan (4) are installed, motor (3) is rotationally connected with blower fan (4); The procapsid (9) that is provided with slideway (12) one sides is provided with inlet scoop (6), is positioned at inlet scoop (6) working panel (1) and procapsid (9) on every side and is provided with loose comb (5); The air channel (7) interior with being arranged on procapsid (9), inlet scoop (6) is connected, and air channel (7) port of export that is positioned at procapsid (9) is equipped with check valve (8); The junction isolation that is positioned at procapsid (9) and back casing (2) is provided with bag dust filter (10).

2, blackboard eraser gumming machine according to claim 1 is characterized in that: described bag dust filter (10) is installed in back casing (2) one sides.

3, blackboard eraser gumming machine according to claim 1 is characterized in that: described check valve (8) is the rubber check valve.

4, blackboard eraser gumming machine according to claim 1 is characterized in that: described loose comb (5) is made up of the cylinder that vertically is arranged on working panel (1) and the procapsid (9).

5, blackboard eraser gumming machine according to claim 4, it is characterized in that: described cylindrical height is 3～8mm.

6, blackboard eraser gumming machine according to claim 1 is characterized in that: described inlet scoop (6) be shaped as ellipse or rectangle, its width is 4～10mm, length equates with the width of working panel (1).

7, blackboard eraser gumming machine according to claim 1 is characterized in that: described blower fan (4) is a centrifugal blower.

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