CN201227924Y - Manual dust-absorbing blackboard eraser - Google Patents

Abstract

A manual dust suction type blackboard eraser comprises a hard plastic outer casing (1) and abraded yarns (5) positioned at the bottom part of the hard plastic outer casing (1). The blackboard eraser is characterized in that firstly, the abraded yarns (5) are arranged in the middle position at the bottom part of the hard plastic outer casing (1); and dust absorbing holes (3) formed are arranged in the peripheral position of the abraded yarns (5). Secondly, a rubber plastic cover (2) with elasticity is arranged at the top part of the hard plastic outer casing (1). When the dust on the blackboard is wiped by manually using the blackboard eraser, the rubber plastic cover (2) with the elasticity after being held can properly be ensured to suck a large amount of dust wiped, thereby greatly reducing the dust pollution formed during the process of wiping the dust.

Description

A kind of manual dust-collecting type blackboard eraser

Technical field

The utility model relates to a kind of manual dust-collecting type blackboard eraser.

Background technology

At present, two kinds of blackboard erasers are arranged on the market: a kind of common blackboard eraser, another kind are the electric erasers of being furnished with dust catcher, because the cost that electric eraser is made is higher, have caused product to have certain limitation on promoting; Though and the cost of common blackboard eraser is cheap relatively, use, the phenomenon that but has dust disorderly to fly is easy to form dust pollution.

The utility model content

The utility model is intended to address the above problem, and proposes a kind of manual dust-collecting type blackboard eraser.

In order to realize the object of the invention, intend adopting following technology:

The utility model structurally is made of: rigid plastics shell and the snag that is positioned at the rigid plastics outer casing bottom,

It is characterized in that:

A. on the central position of rigid plastics outer casing bottom, be provided with snag, and, on the position of the periphery of snag, be provided with and be arranged in a circle ash absorbing hole.

B. be provided with rubber-like rubber plastic lid shell at the top of rigid plastics shell.

The utility model characteristics compared with the prior art:

Because blackboard eraser of the present utility model can be by manually when crocus dirt, can pinch rubber-like rubber plastic lid shell by hand, make suction that the utility model can be suitable much be wiped the dust of falling, this is formed dust pollution when reducing crocus dirt significantly just.

Description of drawings

Fig. 1 has illustrated structure of the present utility model with the form of profile.

Fig. 2 is the upward view of Fig. 1.

1: the rigid plastics shell; 2: rubber plastic lid shell; 3: ash absorbing hole; 5: snag; P: blackboard.

The specific embodiment

The utility model structurally is made of: rigid plastics shell 1 and the snag 5 that is positioned at rigid plastics shell 1 bottom, such architecture basics is very similar to prior art, because rigid plastics shell 1 of the present utility model is a hollow entity, rubber plastic lid shell 2 in its top location be again have necessarily flexible, as long as rubber plastic is covered shell 2 be enclosed within above the rigid plastics shell 1, a circle bossing of hole outer, latter top will make both be in sealing state owing to the elastic reaction that rubber plastic covers shell 2 with a circle contact site of rubber plastic lid shell 2.

Obviously, the dust that might wipe from blackboard P by snag 5 fully is sucked in the middle of the utility model cavity that is made of for main body rigid plastics shell 1 by the ash absorbing hole 3 around the snag 5.

In use, when the utility model that hand is pinched wipes the dust on the blackboard P fall, can pinch and press the rubber plastic lid shell 2 that is arranged in palm, carry out in the process of P that erases the board, to suck and wiped most of dust of falling.

The utility model diameter can be controlled at about 10 centimetres, and the diameter of the rubber plastic on its top lid shell 2 can be controlled at the degree that an ordinary people can pinch it, and for example: about 6 centimetres of diameter, height is 5 centimetres.

Claims (1)

1. manual dust-collecting type blackboard eraser, it structurally is made of: rigid plastics shell (1) and the snag (5) that is positioned at rigid plastics shell (1) bottom,

It is characterized in that:

A. on the central position of rigid plastics shell (1) bottom, be provided with snag (5), and, on the position of the periphery of snag (5), be provided with and be arranged in a circle ash absorbing hole (3),

B. be provided with rubber-like rubber plastic lid shell (2) at the top of rigid plastics shell (1).

Images