CN202319609U

CN202319609U - Novel blackboard eraser

Info

Publication number: CN202319609U
Application number: CN2011205079986U
Authority: CN
Inventors: 赵晴
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-07-11
Anticipated expiration: 2021-12-08

Abstract

The utility model discloses a novel blackboard eraser, and belongs to the field of teaching aids. The novel blackboard eraser comprises an erasing board and main brush hair on the lower side of the erasing board, wherein side brush hair is arranged on three sides of the erasing board and is connected with the main brush hair, and a flexible rod which is parallel to the erasing board is arranged on the other side of the erasing board; a groove is formed on the surface of the main brush hair; a sucking disc is arranged in the groove; and a handle is arranged on the erasing board. According to the blackboard eraser, the side brush hair is connected with the main brush hair into a whole, so that chalk letters at corners of a blackboard can be convenient to erase, and the blackboard is not damaged due to hard edges of the erasing board; due to the arrangement of the flexible rod, teachers and students who are short in height can conveniently clean a high blackboard; due to the arrangement of the sucking disc, the blackboard can be prevented from being dropped when the blackboard is cleaned; and the handle is arranged on the upper surface of the erasing board, so that hands can be far away from the brush hair to prevent the hands from being contaminated by chalk dust and ensure the sanitary health of the teachers and the students. The novel blackboard eraser has a simple structure, and is low in cost, convenient and practical.

Description

A kind of novel blackboard eraser

Technical field

The utility model relates to a kind of teaching aid, particularly a kind of blackboard eraser.

Background technology

Though the use of electronic instruction is more and more, for comparatively poor area, the traditional blackboard teaching remains main mode.For the traditional blackboard teaching, blackboard eraser is one of the instrument that must use.Common blackboard eraser is generally the combination that rectangular-shaped bristle adds wiping board at present.There is following problem in this blackboard eraser: the one, owing to only below wiping board, be provided with bristle; And wiping board is often big slightly than bristle area, when causing brushing the letter written with chalk of corner especially time the, blackboard corner, is not easy brush and falls; And wiping board is generally metal; When brushing the letter written with chalk of corner, blackboard eraser corner and the contact friction of blackboard wall, easy abrasion blackboard; The 2nd, this blackboard eraser holds wiping board in use, and does not have handle; Usually can be stained with chalk dust on hand during erasing blackboard, the hand of making dirty is inconvenient to clean, and is simultaneously unhealthful; Though the blackboard eraser of various dustproof dust suctions has been arranged at present, and cost is higher, and is inapplicable for mountain school; The 3rd, though at present a lot of local especially the time school in city all adopt the blackboard of lift, for the relatively backward mountain area of condition, also be to use fixed blackboard; Blackboard is too high, and for pupil or the shorter teacher of height, very difficulty just erases the board; Usually need bed hedgehopping or stand on the stool to erase the board, this mode bothers on the one hand, on the other hand for balance ability bad student or teacher; May fall down from stool, abnormally dangerous; The 4th, present blackboard eraser usually can drop because being affectedly bashful shakiness when erasing the board, and uses very trouble.Therefore, be necessary to invent a kind of novel blackboard eraser simple in structure, easy to use, with low cost.

The utility model content

The goal of the invention of the utility model is: the problem to above-mentioned existence provides a kind of novel blackboard eraser simple in structure, easy to use, with low cost.

The technical scheme that the utility model adopts is such: a kind of novel blackboard eraser, comprise the main bristle of wiping board and wiping board lower surface, and wherein three sides of said wiping board are equipped with the side bristle, and are connected one with main bristle.

As preferably: the another side of said wiping board is provided with an expansion link parallel with wiping board.

As preferably: in said main bristle surface groove is set, is provided with sucker in the groove.

As preferably: be provided with handle at said wiping board upper surface.

In sum; Owing to adopted technique scheme; The beneficial effect of the utility model is: the side bristle is set and is connected as a single entity, can remove the letter written with chalk of blackboard corner and corner by Convenient scrubber with main bristle, and can be because of hard wiping board corner damage blackboard; Expansion link is set, and the elongation expansion link can make things convenient for the shorter Faculty and Students of height to wipe higher blackboard, and need not wipe higher blackboard the time, can expansion link be shortened, and is easy to use; Sucker is set, can prevents that blackboard drops when erasing the board; Can make the hand can be far away relatively from bristle thereby at the wiping board upper surface handle is set, can prevent that hand is infected with chalk dust, guarantee the hygiene and health of Faculty and Students, the utility model be simple in structure, with low cost, convenient and practical.

Description of drawings

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

Fig. 2 is the structural representation of the utility model bottom surface.

Mark among the figure: 1 is wiping board, and 2 is main bristle, and 3 is the side bristle, and 4 is expansion link, and 5 is groove, and 6 is sucker, and 7 is handle.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is done detailed explanation.

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

As depicted in figs. 1 and 2, a kind of novel blackboard eraser comprises the main bristle 2 of wiping board 1 and wiping board 1 lower surface; Wherein three sides of said wiping board 1 are equipped with side bristle 3; And being connected one with main bristle 2, the another side of said wiping board 1 is provided with an expansion link 4 parallel with wiping board 1, on said main bristle 2 surfaces groove 5 is set; Be provided with sucker 6 in the groove 5, be provided with handle 7 at said wiping board 1 upper surface.

Side bristle 3 is set and is connected as a single entity, can remove the letter written with chalk of blackboard corner and corner by Convenient scrubber with main bristle 2, and can be because of hard wiping board corner damage blackboard; Expansion link 4 is set, and elongation expansion link 4 can make things convenient for the shorter Faculty and Students of height to wipe higher blackboard, and need not wipe higher blackboard the time, can expansion link 4 be shortened, and is easy to use; Sucker 6 is set, can prevents that blackboard drops when erasing the board; Can make the hand can be far away relatively from bristle thereby at the wiping board upper surface handle 7 is set, can prevent that hand is infected with chalk dust, guarantee the hygiene and health of Faculty and Students, the utility model be simple in structure, with low cost, convenient and practical.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. novel blackboard eraser comprises the main bristle of wiping board and wiping board lower surface, and it is characterized in that: wherein three sides of said wiping board are equipped with the side bristle, and are connected one with main bristle.

2. novel blackboard eraser according to claim 1 is characterized in that: the another side of said wiping board is provided with an expansion link parallel with wiping board.

3. novel blackboard eraser according to claim 1 is characterized in that: in said main bristle surface groove is set, is provided with sucker in the groove.

4. novel blackboard eraser according to claim 1 is characterized in that: be provided with handle at said wiping board upper surface.