CN202463380U - Labor-saving dustproof blackboard eraser - Google Patents

Abstract

The utility model belongs to the teaching aid, and particularly relates to a labor-saving dustproof blackboard eraser, which comprises a blackboard eraser body (1) and a blackboard eraser (2), wherein an ash chute edge (3) with one closed end is arranged between one end of the blackboard eraser body (1) and the blackboard eraser (2), the other end of the ash chute edge (3) is movably provided with a plugboard (5), the ash chute edge (3) and the ash chute plugboard (5) form a rectangular ash chute (4), a plurality of grooves (2-1) which are vertical to the ash chute (4) are arranged in the blackboard eraser (2), the ash chute (4) is communicated with the eraser grooves (2-1), and hand holes (1-1) are respectively arranged on the centers of two side surfaces of the blackboard eraser body (1). The blackboard eraser is provided with the grooves, so that not only is labor saved, but also a greatly amount of chalk dust is absorbed into the ash chute, less chalk dust is scattered into the air, and the body health of teachers and students can be protected.

Description

Laborsaving dust-proof blackboard eraser

Technical field

The utility model belongs to teaching aid, particularly a kind of laborsaving dust-proof blackboard eraser.

Background technology

At present, in middle and primary schools' teaching, the teacher will carry out a large amount of writing and teaching contents on blackboard; When erasing the board, just word is wiped, in the process of erasing the board with common board-like blackboard eraser; The chalk dust that produces flies upward everywhere; Have a strong impact on the environment of teaching,, and waste time and energy teacher and healthy very unfavorable from the near student of blackboard.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned technical deficiency, and a kind of chalk dust of collecting is provided, and fireballing laborsaving dust-proof blackboard eraser erases the board.

The technical scheme that the utility model technical solution problem adopts is: laborsaving dust-proof blackboard eraser comprises blackboard eraser body and blackboard eraser; Be characterized between end of blackboard eraser body and blackboard eraser, establishing the ash-pit nation of one one end for sealing; The other end of ash-pit nation is established a plate versatilely, and ash-pit nation becomes a rectangular ash-pit with the ash-pit plate, on blackboard eraser, be provided with several grooves perpendicular to ash-pit; And ash-pit communicates with the blackboard eraser groove, is provided with the attacker hole in the center of the two sides of blackboard eraser body.

The beneficial effect of the utility model is: laborsaving dust-proof blackboard eraser not only can be laborsaving because have groove on the blackboard eraser, and a large amount of chalk dusts are absorbed in the ash-pit, reduces chalk dust and fly upward in air, helps the healthy of academics and students.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is laborsaving dust-proof blackboard eraser structure chart.

Among the figure, 1-blackboard eraser body; 1-1-attacker hole; The 2-blackboard eraser; 2-1-blackboard eraser groove; 3-ash-pit nation; The 4-ash-pit; 5-ash-pit plate.

The specific embodiment

Embodiment, with reference to accompanying drawing 1, the blackboard eraser body 1 of laborsaving dust-proof blackboard eraser can be processed with wood materials or rigid plastics, is bonded in securely on the blackboard eraser body 1 with the sticking blackboard eraser 2 that waits raw material to process of hair.On a termination of blackboard eraser body 1, fixedly establish the ash-pit nation 3 of one one end sealing, another termination of ash-pit nation 3 is adorned a plate 5 versatilely, and ash-pit nation 3 forms a rectangular ash-pit 4 with ash-pit plate 5.On blackboard eraser 2, be provided with three blackboard eraser groove 2-1, and blackboard eraser groove 2-1 is connected with ash-pit 4 perpendicular to ash-pit 4.Middle on the two sides of blackboard eraser body 1 is provided with round button hand hole 1-1, is convenient to hand and takes blackboard eraser.

During use, with band ash-pit 4 one ends of blackboard eraser down, the chalk dust nature flow into the ash-pit 4 from blackboard eraser groove 2-1, wiped blackboard after, the plate on the ash-pit 45 is opened, chalk dust can be poured out from ash-pit 4.

Claims (1)

1. laborsaving dust-proof blackboard eraser; Comprise blackboard eraser body (1) and blackboard eraser (2); It is characterized in that between end of blackboard eraser body (1) and blackboard eraser (2), establishing the ash-pit nation (3) of one one end for sealing; The other end of ash-pit nation (3) is established a plate (5) versatilely, and ash-pit nation (3) becomes a rectangular ash-pit (4) with ash-pit plate (5), on blackboard eraser (2), is provided with several grooves perpendicular to ash-pit (4) (2-1); And ash-pit (4) communicates with blackboard eraser groove (2-1), is provided with attacker hole (1-1) in the center of the two sides of blackboard eraser body (1).