CN202764547U - Automation blackboard eraser - Google Patents

Automation blackboard eraser Download PDF

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Publication number
CN202764547U
CN202764547U CN 201220418588 CN201220418588U CN202764547U CN 202764547 U CN202764547 U CN 202764547U CN 201220418588 CN201220418588 CN 201220418588 CN 201220418588 U CN201220418588 U CN 201220418588U CN 202764547 U CN202764547 U CN 202764547U
Authority
CN
China
Prior art keywords
blackboard
blackboard eraser
eraser
automation
rectangular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220418588
Other languages
Chinese (zh)
Inventor
孙淑芹
Original Assignee
孙淑芹
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孙淑芹 filed Critical 孙淑芹
Priority to CN 201220418588 priority Critical patent/CN202764547U/en
Application granted granted Critical
Publication of CN202764547U publication Critical patent/CN202764547U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an automation blackboard eraser which comprises long strip blackboard erasers which are arranged on the left side and the right side of a blackboard. The length of each blackboard eraser is the same as the width of the blackboard. Slide tracks are arranged on the upper side and the lower side of the blackboard. Pulleys are arranged on the inner side of the long strip blackboard erasers and inside the slide tracks. Springs are arranged between the long strip blackboard erasers and the left end and the right end of the blackboard. Pins are arranged at the end portions of the long strip blackboard erasers and the slide tracks. The automation blackboard eraser is reasonable in structural design, convenient to operate and use and high in erasing efficiency, automatic erasing is achieved, the labor intensity of a teacher when the blackboard is erased is lowered, and teaching efficiency is greatly improved.

Description

A kind of automation blackboard eraser
Technical field
The utility model relates to education and instruction technique with the apparatus field, especially a kind of automation blackboard eraser.
Background technology
And front blackboard eraser is comprised of simple wiping board and bristle, and is simple in structure, the time marquis who erases the board, can only wipe a very little area at every turn, and efficient is very low, and the muscle power that expends is larger.In current teaching, efficiency of teaching is extremely important, need to write a lot of literal at blackboard on the classroom, but will waste many times and muscle power when erasing the board, and is unfavorable for the raising of efficiency of teaching.
The utility model content
The purpose of this utility model is to provide a kind of automation blackboard eraser in order to overcome above-mentioned technical disadvantages.
The technical scheme that the utility model technical solution problem adopts is: a kind of automation blackboard eraser, comprise and be installed in the blackboard left and right sides rectangular blackboard eraser identical with the blackboard width, the up and down both sides of described blackboard are provided with slide rail, rectangular blackboard eraser inboard is provided with pulley in slide rail, between described rectangular blackboard eraser and the two ends, the blackboard left and right sides spring is installed, rectangular blackboard eraser and slide rail end are provided with pin.
The beneficial effect that the utility model has is:
The utility model reasonable in design, easy for operation, wiping efficient is high, and the automation wiping has alleviated the labour intensity of teacher's blackboard wiping, has greatly improved the efficient of giving lessons.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
The specific embodiment
Do following detailed description below in conjunction with 1 pair of the utility model of accompanying drawing.
As shown in Figure 1, comprise and be installed in the blackboard 1 left and right sides rectangular blackboard eraser 2 identical with the blackboard width, the up and down both sides of described blackboard 1 are provided with slide rail 3, rectangular blackboard eraser 2 inboards are provided with pulley 4 in slide rail 3, between described rectangular blackboard eraser 2 and the two ends, blackboard 1 left and right sides spring 5 is installed, rectangular blackboard eraser 2 is provided with pin 6 with the slide rail end.During use, pin 6 pulled out get final product, rectangular blackboard eraser 2 blackboard wiping that will move back and forth under the elastic force effect of spring 5 is fixed rectangular blackboard eraser 5 with pin 6 getting final product after wiping is finished.

Claims (1)

1. automation blackboard eraser, it is characterized in that: comprise being installed in the blackboard left and right sides rectangular blackboard eraser identical with the blackboard width, the up and down both sides of described blackboard are provided with slide rail, rectangular blackboard eraser inboard is provided with pulley in slide rail, between described rectangular blackboard eraser and the two ends, the blackboard left and right sides spring is installed, rectangular blackboard eraser and slide rail end are provided with pin.
CN 201220418588 2012-08-15 2012-08-15 Automation blackboard eraser Expired - Fee Related CN202764547U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220418588 CN202764547U (en) 2012-08-15 2012-08-15 Automation blackboard eraser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220418588 CN202764547U (en) 2012-08-15 2012-08-15 Automation blackboard eraser

Publications (1)

Publication Number Publication Date
CN202764547U true CN202764547U (en) 2013-03-06

Family

ID=47771144

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220418588 Expired - Fee Related CN202764547U (en) 2012-08-15 2012-08-15 Automation blackboard eraser

Country Status (1)

Country Link
CN (1) CN202764547U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130306

Termination date: 20130815