CN202935046U - Hand protection type blackboard eraser - Google Patents

Abstract

The utility model relates to a hand protection type blackboard eraser, belongs to teaching appliances and mainly solves the problems that during cleaning of a blackboard, hands are polluted by dust, and dust freely flies. The hand protection type blackboard eraser comprises a handle and an eraser body, wherein one side of the handle is provided with the eraser body, the other side of the handle is provided with a protective jacket which is detachably connected with the handle, the protective jacket takes the shape of a pocket, one end of the protective jacket is opened, and columnar fingerstalls are symmetrically distributed on the two sides of the protective jacket and are communicated with the protective jacket. When the hand protection type blackboard eraser is used, a hand stretches into the protective jacket, and as the two sides of the protective jacket are provided with the fingerstalls, the requirement of cleaning the blackboard with a left hand or a right hand according to the using habits can be satisfied; as the protective jacket is larger than the blackboard eraser, most of dust generated during cleaning is covered by the protective jacket, and the problem that during cleaning of the blackboard, dust freely flies and is harmful to physical health of teachers and students is solved; and the protective jacket can be dismantled, cleaned and reused, thus the manufacturing cost is saved.

Description

A kind of handguard type blackboard eraser

Technical field

The utility model relates to a kind of teaching aid, is specifically a kind of handguard type blackboard eraser.

Background technology

Class hour on to the student, teacher can erase the board every now and then, lower class hour, the student on duty classmate also will erase the board, chalk powder will drop on one after another teacher and classmates on hand and with it, especially, when dry, the dust flown upward also can be inhaled in lung, specific physical performance due to chalk, this can cause very large injury to health, as pneumoconiosis and the various acute and chronic breathing problem that dust causes, stains on hand too much dust and also will wash one's hands in time, not only waste time, go back waste water resource.If a kind of blackboard eraser that prevents dust from flying and protection hand can be arranged, will be useful especially to teacher and classmates' physical and mental health.

The utility model content

The purpose of this utility model is to provide a kind of handguard type blackboard eraser, and this blackboard eraser has the protection both hands not by the function of dust pollution.

The technical scheme in the invention for solving the technical problem is: a kind of handguard type blackboard eraser, comprise handle and rub body, one side of handle is provided with rub body, opposite side is provided with a sheath, described sheath and handle form and removably connect, and sheath is pocket-like, an end opening, the monosymmetric column fingerstall that is distributed with of sheath, fingerstall communicates with sheath.

The beneficial effects of the utility model are: be provided with sheath, can protect user's hand, because all there is fingerstall both sides for stretching into thumb, so can meet the demand that the right-hand man erases the board according to use habit; Because sheath is greater than blackboard eraser, so most of dust during wiping is just covered by sheath, solved dust from flying while erasing the board, the healthy problem of harm Faculty and Students; Sheath is detachable, cleaning, and can reuse, and saves manufacturing cost.

The accompanying drawing explanation

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

In figure: 1 sheath, 2 rub bodies, 3 handles.

The specific embodiment

As shown in Figure 1.A kind of handguard type blackboard eraser, comprise handle 3 and rub body 2, and a side of handle 3 is provided with rub body 2, opposite side is provided with a sheath 1, and described sheath 1 forms and removably connects with handle 3, and sheath 1 is pocket-like, one end opening, the monosymmetric column fingerstall that is distributed with of sheath 1, fingerstall communicates with sheath 1.

During use, hand is stretched in sheath 1, thumb stretches in the fingerstall on sheath 1, because the both sides of sheath 1 are equipped with fingerstall, so can meet the demand that the right-hand man erases the board according to use habit, finger is caught outside handle 3, the local horizontal direction left and right of writing is arranged on blackboard or move up and down to get final product, and after sheath 1 is dirty, can pull down cleaning.

Claims (1)

1. a handguard type blackboard eraser, comprise handle and rub body, it is characterized in that, a side of handle is provided with rub body, opposite side is provided with a sheath, and described sheath and handle form and removably connect, and sheath is pocket-like, one end opening, the monosymmetric column fingerstall that is distributed with of sheath, fingerstall communicates with sheath.

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