CN2425789Y - Novel blackboard eraser - Google Patents

Abstract

The utility model relates to a novel blackboard eraser, which belongs to the technical field of the group of blackboard or slate cleaning devices of the subclass of writing or drawing supplies and writing or drawing auxiliary supplies of the class of writing or drawing appliances and office supplies of the subsection of printing in the section of performing operations and transporting according to the international patent classification (IPC). The number is B43L21/00. The utility model is composed of a conical cover, a rotary handle, a wide and long wood board, a dust absorbing spongy cushion and a felt cushion. The utility model is characterized in that the crank-shaped rotary handle is arranged on the oblong wide and long wood board. The utility model is a novel blackboard eraser having large practical value.

Description

Novel blackboard eraser

The utility model relates to novel blackboard eraser.(IPC) belongs to operation Department of Transportation by International Patent Classification (IPC), and printing divides all, writes or drawing appliance, and the big class of office appliance is write or drawing article, the assistant product group of writing or draw, the cleaning device technical group field of blackboard or slabstone.Be numbered B43L21/00.

At present, the technology about the cleaning device of blackboard or slabstone existing and that once had was all done very fruitful effort to the demand of novel blackboard eraser, also once designed many outstanding technical schemes.As being declared by Liu Fengyi of the Decree of Patent Office of China in 1996, Granted publication number is CN2234867Y, and China Patent No. (ZL) is: No. 95205328.4 utility model title is the utility model patent of " dustproof blackboard eraser ", the technical scheme that is adopted.Cleaning device technical elements at blackboard or slabstone is a routine of great value invention, and it has solved blackboard eraser dustproof problem effectively.But still have some deficits, it also is difficult to solve small blackboard and wipes the problem of making hand easily dirty.

The purpose of this utility model is to provide a kind of novel blackboard eraser.Wipe the problem of making hand easily dirty to solve small blackboard.

The purpose of this utility model is achieved in that the novel blackboard eraser of this utility model.Mainly constitute by circular cone cover, rotary handle, wide long plank, dust suction foam-rubber cushion, felt pad.Its major part rotary handle is a crank shape, makes material with steel, through the processing and forming manufacturing.Its felt pad is a trapezoidal shape, makes material with felt, through the machining manufacturing.The circular cone cover of its cone shape adopts the rotary handle fixing means to be installed on the OBL wide long plank.Form the circular cone cover structure of a cone shape.The rotary handle employing screw of its crank shape fixedly circular cone cover fixing means is installed on the OBL wide long plank.Form the rotary handle structure of a crank shape.Its OBL wide long plank adopts the subsides adhering method to be installed on the OBL dust suction foam-rubber cushion.Form a wide OBL wide long boarding.Its OBL dust suction foam-rubber cushion adopts method of attaching to be installed on the felt pad of trapezoidal shape.Form an OBL dust suction foam-rubber cushion structure.Its wide long plank acts on the dust suction foam-rubber cushion by stickup.Thereby make wide long plank satisfy the requirement of dustproof handguard.Its dust suction foam-rubber cushion acts on the felt pad by stickup.Thereby make the dust suction foam-rubber cushion finish the task of dust suction.So just realized the purpose of this utility model.

The utility model has been compared three advantages and improvement with the original blackboard or the cleaning device technology of slabstone;

The first, because the utility model has designed rotary handle in technical scheme, so but solved the problem that any aspect erases the board;

The second, because the utility model has designed wide long plank in technical scheme, so solved the problem that can prevent hand contact blackboard;

The 3rd, because the utility model has designed foam-rubber cushion in technical scheme, so solved the problem that can absorb chalk dust.Thereby just can more effectively solve small blackboard and wipe the problem of making hand easily dirty.

Accompanying drawing provides structural representation of the present utility model:

Fig. 1 is the overall structure schematic diagram of novel blackboard eraser of the present utility model;

The numbering of parts explanation in the schematic diagram: 1 circular cone cover, 2 rotary handles, 3 wide long plank 4 dust suction foam-rubber cushions 5 felt pads

Below in conjunction with accompanying drawing, the utility model is described further:

As shown in the figure, novel blackboard eraser of the present utility model.Mainly constitute by circular cone cover 1, rotary handle 2, wide long plank 3, dust suction foam-rubber cushion 4, felt pad 5.Its major part rotary handle 2 is crank shape, makes material with steel, through the processing and forming manufacturing.Its felt pad 5 is trapezoidal shapes, makes material with felt, through the machining manufacturing.The circular cone cover 1 of its cone shape adopts the rotary handle fixing means to be installed on the OBL wide long plank 3.Form the circular cone cover structure of a cone shape.The rotary handle 2 employing screws of its crank shape fixedly circular cone cover fixing means are installed on the OBL wide long plank 3.Form the rotary handle structure of a crank shape.Its OBL wide long plank 3 adopts the subsides adhering method to be installed on the OBL dust suction foam-rubber cushion 4.Form a wide OBL wide long boarding.Its OBL dust suction foam-rubber cushion 4 adopts method of attaching to be installed on the felt pad 5 of trapezoidal shape.Form an OBL dust suction foam-rubber cushion structure.Its wide long plank 3 acts on dust suction foam-rubber cushion 4 by stickup.Thereby make wide long plank 3 satisfy the requirement of dustproof handguard.Its dust suction foam-rubber cushion 4 acts on felt pad 5 by stickup.Thereby make dust suction foam-rubber cushion 4 finish the task of dust suction.So just realized the purpose of this utility model.Thereby just can solve small blackboard and wipe the problem of making hand easily dirty.

Below by embodiment, the utility model is done more detailed description:

Embodiment 1, in force,, erases the board along any direction if erase the board hand-holdable rotary handle 2, owing to designed wide long plank 3 structures, so dust can't contact in one's hands.

Embodiment 2, and in force, if the dust that erases the board is bigger, dust suction foam-rubber cushion 4 structures of design can be adsorbed a large amount of dust, thereby clean air prevents that hand is dirty.Thereby just can realize the purpose of this utility model.

Realize that preferred plan of the present utility model is is material with timber, sponge, felt, utilize the basic equipment of machining factory, take machining to produce in batch, the demand with supply school, machine-operated boundary so just can realize practical value of the present utility model and economic worth better.

Claims (3)

1. novel blackboard eraser, it is to be made of circular cone cover (1), rotary handle (2), wide long plank (3), dust suction foam-rubber cushion (4), felt pad (5), the circular cone cover (1) of its cone shape is installed on the OBL wide long plank (3), it is characterized in that the rotary handle (2) of its crank shape is installed on the OBL wide long plank (3).

2. novel blackboard eraser according to claim 1 is characterized in that its OBL wide long plank (3) is installed on the OBL dust suction foam-rubber cushion (4).

3. novel blackboard eraser according to claim 1 is characterized in that its OBL dust suction foam-rubber cushion (4) is installed on the felt pad (5) of trapezoidal shape.

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