CN202147518U - Automatic blackboard eraser - Google Patents

Automatic blackboard eraser Download PDF

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Publication number
CN202147518U
CN202147518U CN201120224479U CN201120224479U CN202147518U CN 202147518 U CN202147518 U CN 202147518U CN 201120224479 U CN201120224479 U CN 201120224479U CN 201120224479 U CN201120224479 U CN 201120224479U CN 202147518 U CN202147518 U CN 202147518U
Authority
CN
China
Prior art keywords
blackboard
blackboard eraser
eraser
retractor device
control button
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
CN201120224479U
Other languages
Chinese (zh)
Inventor
李想
Original Assignee
李想
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 李想 filed Critical 李想
Priority to CN201120224479U priority Critical patent/CN202147518U/en
Application granted granted Critical
Publication of CN202147518U publication Critical patent/CN202147518U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an automatic blackboard eraser, which is composed of a blackboard eraser, a retractor device, a dust groove and a control button; the blackboard eraser is stuck to the surface of the blackboard; the retractor device is disposed at upper end of the blackboard, and a retraction rod is disposed at the lower end of the backboard and is connected to the blackboard eraser; the dust groove is disposed on the lower end surface of the blackboard; and the control button controls movement of the retractor device. The blackboard eraser is controlled by the control button to automatically wipe the blackboard, which not only reduces burden of manually wiping the blackboard but also improves efficiency of wiping the blackboard, meanwhile, the blackboard eraser also reduces harmfulness of flying dust on the people and is convenient to operate and high in practicality.

Description

Automatic blackboard eraser
Technical field
The utility model relates to a kind of blackboard eraser, especially a kind of automatic blackboard eraser.
Background technology
Blackboard eraser is the specific purpose tool that is used for erasing the board.Its advantage is that it can be easy to wipe scribbling on the blackboard, lets blackboard infinitely reuse.School is to use the maximum place of blackboard eraser, and except school can use blackboard eraser, blackboard also can be used in other place, like the propaganda board of enterprise, some training organizations etc., uses the place of blackboard just to need to use blackboard eraser in a word.
At present, the structure of blackboard eraser is all very simple on the market, and it generally is made up of sponge and shell, and shell is fixed together sponge, plays a part conveniently to take; Sponge is a kind of material of dust suction relatively preferably, and it can be easy to the dust on the blackboard is wiped clean, and sponge is durable in use.Need manually-operated with this blackboard eraser, people are in the blackboard wiping process, and the dust of wiping can fly away with the wind.If these dust are scattered on the clothes, the meeting intractable is clean; If be drawn in the lung by people with air, can severe damaging body health.And the mode that this manually-operated erases the board is the not high but also waste muscle power of efficient not only.
The utility model content
In order to overcome the low deficiency that can endanger health with dust of manually-operated blackboard eraser efficient, the purpose of the utility model provides a kind of automatic blackboard eraser, and it controls the blackboard eraser Automatic erasing blackboard through switch.
For the technical scheme that purpose adopted that realizes the utility model is: a kind of automatic blackboard eraser is characterized in that: it is made up of blackboard eraser, retractor device, dust groove and control button; Described blackboard eraser is a strip, and it is attached on the surface of blackboard; Described retractor device is located at the upper end of blackboard, and its lower end is provided with expansion link, and expansion link is connected on the blackboard eraser; Described dust groove is located on the lower surface of blackboard, and its front is provided with baffle plate; Described control button is located at the adjacency of blackboard, and it is connected with retractor device through electric wire, and the motion of control retractor device.
The beneficial effect of the utility model is: it controls the blackboard eraser Automatic erasing blackboard through control button; Not only reduced the artificial burden that erases the board but also improved the efficient that erases the board, it has also reduced the harm of dispersing and bringing to people of dust simultaneously, and it is easy to operate; Simple in structure, practical.
Description of drawings
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the vertical view of dust groove.
1-blackboard, 2-blackboard eraser, 3-expansion link, 4-retractor device, 5-control button, 6-travel switch, 7-dust groove, 8-baffle plate among the figure.
The specific embodiment
In Fig. 1, first embodiment shown in Figure 2, a kind of automatic blackboard eraser is characterized in that: it is made up of blackboard eraser (2), retractor device (4), dust groove (7) and control button (5); Described blackboard eraser (2) is a strip, and it is attached on the surface of blackboard (1); Described retractor device (4) is located at the upper end of blackboard (1), and its lower end is provided with expansion link (3), and expansion link (3) is connected on the blackboard eraser (2); Described dust groove (7) is located on the lower surface of blackboard (1), and its front is provided with baffle plate (8); Described control button (5) is located at the adjacency of blackboard (1), and it is connected with retractor device (4) through electric wire, and the motion of control retractor device (4).
In Fig. 1, second embodiment shown in Figure 2, be provided with travel switch (6) in the edge that dust groove (7) is gone up and blackboard (1) is bordered on.
The initial position of blackboard eraser (2) is the edge, upper end at blackboard (1); When pressing control button (5); Expansion link (3) can promote blackboard eraser (2) and move downward, and blackboard eraser (2) moves to the lower end can clash into dust groove (7), and dust can fall automatically in the dust groove simultaneously; Blackboard eraser (2) also can be run into travel switch (6), blackboard eraser (2) run into travel switch (6) afterwards expansion link (3) can go back up to initial position automatically.

Claims (2)

1. automatic blackboard eraser is characterized in that: it is made up of blackboard eraser (2), retractor device (4), dust groove (7) and control button (5); Blackboard eraser (2) is a strip, and it is attached on the surface of blackboard (1); Retractor device (4) is located at the upper end of blackboard (1), and its lower end is provided with expansion link (3), and expansion link (3) is connected on the blackboard eraser (2); Dust groove (7) is located on the lower surface of blackboard (1); Control button (5) is located at the adjacency of blackboard (1), and it is connected with retractor device (4) through electric wire.
2. automatic blackboard eraser according to claim 1 is characterized in that: dust groove (7) front is provided with baffle plate (8); The edge that dust groove (7) is gone up and blackboard (1) is bordered on is provided with travel switch (6).
CN201120224479U 2011-06-24 2011-06-24 Automatic blackboard eraser Expired - Fee Related CN202147518U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120224479U CN202147518U (en) 2011-06-24 2011-06-24 Automatic blackboard eraser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120224479U CN202147518U (en) 2011-06-24 2011-06-24 Automatic blackboard eraser

Publications (1)

Publication Number Publication Date
CN202147518U true CN202147518U (en) 2012-02-22

Family

ID=45588591

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120224479U Expired - Fee Related CN202147518U (en) 2011-06-24 2011-06-24 Automatic blackboard eraser

Country Status (1)

Country Link
CN (1) CN202147518U (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: 20120222

Termination date: 20130624