CN203228558U - Combined type blackboard eraser - Google Patents

Abstract

Provided is a combined type blackboard eraser, characterized by being provided with a frame (3) which is a regular prismoid with six surfaces; a large square end surface of the frame (3) is provided with a cylindrical handle (4) and the other five surfaces are provided with multilayer soft bags (1); an opening of each soft bag is provided with two belts (2). The soft bags are used for cleaning the blackboard and accommodating chalk dust. The blackboard eraser can be designed in a larger size and the cleaning speed can be faster; the blackboard eraser has five wiping surfaces and has a strong capability of accommodating chalk dust; a soft bag is detached in cases of no longer accommodating chalk dust, and other soft bags are used for cleaning; as a result, the blackboard eraser does not need cleaning in class, which can save teaching time; the blackboard eraser is comfortable and convenient to hold by a teacher to clean the blackboard, but is difficult to attach with chalk dust, which is beneficial for the health of teachers.

Description

A kind of combined black blackboard eraser

Technical field

The utility model relates to a kind of blackboard eraser, is specifically related to a kind of combined black blackboard eraser.

Background technology

Existing blackboard eraser is the cuboid that is similar to, and this blackboard eraser has two shortcomings: the one, and smaller, speed is slow when erasing the board with this blackboard eraser; It is also smaller that blackboard eraser holds the ability of chalk dust, the last class hour teacher chalk dust on the cleaning blackboard eraser of usually will taking time, waste instructional blocks of time.The 2nd and since the hand of taking blackboard eraser apart from the software of the sticking chalk dust of blackboard eraser too closely teacher's hand be stained with chalk dust easily, healthy unfavorable to the teacher.

The utility model content

The technical problems to be solved in the utility model be overcome that the wiping surface of existing blackboard eraser is little, the ability of holding chalk dust, teacher's hand contact the shortcoming of chalk dust easily, for market provides a kind of combined black blackboard eraser, this blackboard eraser has solved the technical problem that existing blackboard eraser exists.

The technical solution adopted in the utility model is: the feature of described a kind of combined black blackboard eraser is: a skeleton is set, and described skeleton is the positive terrace with edge shape with six faces; The big square end faces of described skeleton is installed cylinder bodily form handle, and multilayer software bag is installed on all the other five faces, and the opening part of described every layer of software bag is installed two belts.

Beneficial effect: the software bag is used for erasing the board and holding chalk dust; This blackboard eraser can design greatlyyer, and speed is fast when erasing the board with it; It has five wiping surfaces, and the ability of holding chalk dust is strong, when one deck software bag can not hold chalk dust again, then this layer software bag is removed, and erases the board with other software bag, therefore last class hour needn't clear up blackboard eraser, saves instructional blocks of time; Comfortable when the teacher holds handle and erases the board, convenient and be difficult to be stained with chalk dust, also favourable to teacher's health.

Description of drawings

Fig. 1 is a kind of front view of combined black blackboard eraser;

Among the figure: 1, software bag; 2, belt; 3, skeleton; 4, cylinder bodily form handle.

The specific embodiment

Below in conjunction with Fig. 1 and Fig. 2, the utility model is described in further detail: a kind of combined black blackboard eraser is characterized in that: a skeleton 3 is set, and described skeleton 3 is the positive terrace with edge shapes with six faces; The big square end faces of described skeleton 3 is installed cylinder bodily form handle 4, and multilayer software bag 1 is installed on all the other five faces, and the opening part of described every layer of software bag 1 is installed two belts 2.

Software bag 1 can be made with flannelette, and skeleton 3 and cylinder bodily form handle 4 can be made with timber, and skeleton 3 can be hollow.Two belts 2 on every layer of software bag 1 are used for software bag 1 is tied up on the cylinder bodily form handle 4.

This blackboard eraser can design greatlyyer, and has multilayer software layer to be used for erasing the board, and the ability that makes blackboard eraser hold chalk dust significantly increases, thereby has improved the speed that erases the board, and has saved the time of clearing up chalk dust on class; Convenient, comfortable when the teacher holds cylinder bodily form handle 4 and erases the board, be difficult to be stained with chalk dust, also favourable to teacher's health.

Claims (1)

1. combined black blackboard eraser, it is characterized in that: a skeleton (3) is set, and described skeleton (3) is the positive terrace with edge shape with six faces; The big square end faces of described skeleton (3) is installed cylinder bodily form handle (4), and multilayer software bag (1) is installed on all the other five faces, and the opening part of described every layer of software bag (1) is installed two belts (2).

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