CN203110719U

CN203110719U - Blackboard eraser

Info

Publication number: CN203110719U
Application number: CN 201320146194
Authority: CN
Inventors: 董昕亿
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-08-07
Anticipated expiration: 2023-03-28

Abstract

The utility model relates to a blackboard eraser, and belongs to the field of teaching apparatuses. The blackboard eraser comprises a box body. Water absorption cloth and wet cloth are arranged on the working surface of the box body. A water scraping sheet is arranged between the water absorption cloth and the wet cloth. A mirror, a suction cup and a water inlet are arranged on the other side of the box body. The blackboard eraser is safe, sanitary, wide in erasure range, and easy to find, and brings convenience to classroom discipline maintenance.

Description

Blackboard eraser

Technical field

The utility model relates to a kind of blackboard eraser, belongs to the teaching instrument field.

Background technology

The important tool that blackboard eraser is the teacher in the middle of teaching, ordinary blackboard eraser in use problem is a lot of, be mainly following some:

1, chalk dust spreads in the air with the blackboard eraser motion in the use, harm teachers and students health;

2, since teacher's height different, blackboard top usually wipe less than;

3, the teacher owing to back to the student, is not easy to keep classroom discipline when erasing the board;

4, place everywhere after blackboard eraser uses, be difficult for seeking.

The utility model content

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of safety and sanitation are provided, and the scope of wiping is wide, the convenient classroom discipline that keeps, the blackboard eraser of seeking easily.

Blackboard eraser described in the utility model comprises box body, establishes absorbent cloth and wet cloth on the box body working face, establishes between absorbent cloth and the wet cloth and scrapes the water skin; Establish mirror, sucker and water inlet on the box body another side.

Box body one side is established expansion link, in order to increase the removing scope of blackboard eraser.

Absorbent cloth is strip and is parallel to scrapes the installation of water skin, and soaking effect is better, and wet cloth is strip and installs perpendicular to scraping the water skin, can reduce frictional resistance.

Operation principle and process:

During use, water filling in the water inlet, hand-held blackboard eraser slides at blackboard and removes chalk dust, wet cloth is moistening and wipe chalk dust with blackboard, scrape the water skin and wipe most moisture off, absorbent cloth sponges remaining moisture, elongates expansion link and can remove the chalk dust on blackboard top, serve as a teacher the movement that can observe classmates when erasing the board by mirror, the time spent can not be adsorbed on it by sucker on the smooth flat such as blackboard frame blackboard eraser.

The beneficial effect that the utility model compared with prior art has is:

Blackboard eraser described in the utility model can avoid chalk dust to spread in the air, safety and sanitation, and the scope of wiping is wide, makes things convenient for the teacher to keep classroom discipline, and deposits conveniently, seeks easily.

Description of drawings

Fig. 1 is the utility model embodiment front view;

The real the utility model embodiment of Fig. 2 rearview.

Among the figure: 1, absorbent cloth; 2, scrape the water skin; 3, wet cloth; 4, box body; 5, expansion link; 6, water inlet; 7, mirror; 8, sucker.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

As depicted in figs. 1 and 2, blackboard eraser described in the utility model comprises box body 4, establishes absorbent cloth 1 and wet cloth 3 on box body 4 working faces, establishes between absorbent cloth 1 and the wet cloth 3 and scrapes water skin 2; Establish mirror 7, sucker 8 and water inlet 6 on box body 4 another sides, box body 4 one sides are established expansion link 5, and absorbent cloth 1 is strip and is parallel to scrapes 2 installations of water skin, and wet cloth 3 is strip and installs perpendicular to scraping water skin 2.

During use, to water inlet 6 interior water fillings, hand-held blackboard eraser slides at blackboard and removes chalk dust, wet cloth 3 is moistening and wipe chalk dust with blackboard, scrape water skin 2 and wipe most moisture off, absorbent cloth 1 sponges remaining moisture, elongates expansion link 5 and can remove the chalk dust on blackboard top, serve as a teacher when erasing the board the movement that can observe classmates by mirror 7, the time spent can not be adsorbed on it by sucker 8 on the smooth flat such as blackboard frame blackboard eraser.

Claims

1. a blackboard eraser comprises box body (4), it is characterized in that: establish absorbent cloth (1) and wet cloth (3) on box body (4) working face, establish between absorbent cloth (1) and the wet cloth (3) and scrape water skin (2); Establish mirror (7), sucker (8) and water inlet (6) on box body (4) another side.

2. blackboard eraser according to claim 1, it is characterized in that: box body (4) one sides are established expansion link (5).

3. blackboard eraser according to claim 1 is characterized in that: absorbent cloth (1) is strip and is parallel to be scraped water skin (2) and installs, and wet cloth (3) is strip and installs perpendicular to scraping water skin (2).