CN203752760U - Blackboard eraser - Google Patents

Abstract

A blackboard eraser is formed by an erasing plate, an erasing body and two handles. The two handles are cylinders with the side faces recessing inwards, the erasing plate is a wooden cuboid, and a sponge material is adopted in the erasing body. Both of the handles are fixed to the back of the erasing plate, and the distance between the central positions of the two handles is 8cm. The heights of the two handles are different. The bottom face of the erasing plate adheres to the erasing body through hook & loop fasteners. The blackboard eraser is conveniently held by a teacher, materials are saved, and the environment-friendly aim is achieved.

Description

a blackboard eraser

technical field

The utility model relates to a teaching article, in particular to a blackboard eraser.

Background technique

In teaching, blackboard eraser is a kind of teaching article that a kind of teacher often uses. In the process of teaching knowledge, teachers need to use chalk, oil pen, etc. to write on the teaching board. Due to the needs of teaching, it is often necessary to erase the previously written content during the writing process. The blackboard eraser is an essential tool for teachers to erase. However, the blackboard eraser usually only consists of an eraser and an eraser. During use, the teacher can only hold the eraser, which is inconvenient in erasing back and forth, and often causes the blackboard eraser to fall from the hand.

Utility model content

The technical task of the utility model is to provide a kind of blackboard eraser for the above-mentioned deficiencies in the prior art, so that teachers can hold it.

The blackboard eraser consists of an eraser board 3, an eraser body 2 and two handles 1. The two handles 1 are cylinders whose sides are concave inward, the wiper board 2 is a wooden cuboid, and the wiper body 2 is made of sponge material. Both handles 1 are fixed on the back of the wiping board 3, and the distance between the two centers is 8 centimeters. The heights of the two handles 1 are different. Wiping board 3 bottom surfaces are pasted and picked out body 2 by hook and loop.

The utility model has the following prominent beneficial effects: the blackboard eraser will not fall off easily during the teacher's use.

Description of drawings

Accompanying drawing 1 is the side structural representation of the utility model.

Accompanying drawing 2 is the top view structural representation of the utility model.

Explanation of reference numerals: 1 handle, 2 erasing body, 3 erasing board.

Detailed ways

As shown in Figures 1 and 2, Figure 1 is a schematic structural view of the utility model shown from the side, and Figure 2 is a schematic structural view of the utility model shown from the top to the bottom.

The blackboard eraser consists of an eraser board 3, an eraser body 2 and two handles 1. Both handles 1 are fixed on the back of the wiping board 3, and the bottom surface of the wiping board 3 is pasted with the erasing body 2 by a hook and loop.

In order to facilitate the teacher to hold the blackboard eraser, the two handles are set to different heights. For example, set one handle to a height of 4 cm and the other to a height of 2 cm. The two handles are fixed separately, for example, the center positions of the two handles are set to be 8 cm apart. During the holding process, the teacher puts the short handle in the palm of the hand, and pinches the tall handle with the thumb and index finger. This makes it convenient for the teacher to hold the blackboard eraser, preventing the blackboard from falling off during the process of erasing back and forth.

In order to increase the feeling of holding, the sides of the two handles 1 are designed to be similar to the shape of an hourglass, and the sides are recessed inward to form a concave cylinder, which also increases the firmness of holding.

Both the wiping board 2 and the handle 1 can be made of wood, and the wiping body 2 can be made of sponge.

Since the erasing body 2 is more easily damaged than the wiping board 3 and the handle 1, the erasing body 2 needs to be replaced frequently. If it is replaced together with the wiping board 3 and the handle 1, materials will be wasted, which is also unfavorable for environmental protection. Therefore, a Velcro tape is fixed on the part of the wiper board 3 combined with the eraser body 2, and the eraser body 2 is attached to the wiper board 3 through the Velcro tape. In this way, when the erasing body is damaged, the erasing body 2 can be torn off from the hook and loop, and another erasing body 2 can be replaced. To achieve the purpose of saving materials.

Claims (1)

1. A blackboard eraser, characterized in that: The blackboard eraser consists of an eraser, an eraser and two handles; The two handles are cylinders with sides concave inward, the wiper board is a wooden cuboid, and the eraser is made of sponge material; The two handles are all fixed on the back of the wipe board, and the distance between the two centers is 8 cm; the heights of the two handles are different; the bottom surface of the wipe board is pasted with a hook and loop to erase the body.