CN210172009U

CN210172009U - Quick cleaner for blackboard eraser

Info

Publication number: CN210172009U
Application number: CN201920601989.XU
Authority: CN
Inventors: 安力群; 马煜皓; 赵继超; 王必胜
Original assignee: Tianjin University of Science and Technology
Current assignee: Tianjin University of Science and Technology
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-03-24
Anticipated expiration: 2029-04-29

Abstract

The utility model relates to the technical field of dust removal, in particular to a blackboard eraser quick cleaner, which comprises a motor, a centrifugal fan, a brush and a shell; centrifugal fan installs the top of casing and with the inside intercommunication of casing, set up the filter screen between centrifugal fan and the casing is inside, the one end of brush is connected with an inside wall of casing through the pivot, the motor is fixed on another inside wall of casing, and the casing lateral part is equipped with the brush export, and the partly of brush exposes in the brush exit, one side that the dust got into the case has the opening, the opening just to brush export one side, the bottom sliding connection of casing has the dust to collect the drawer. When the device is used for cleaning the blackboard eraser, dust cannot be generated during cleaning due to the adsorption effect of the small dust collector; the cleaning speed is improved, and the device can clean the blackboard eraser within 10 seconds.

Description

Quick cleaner for blackboard eraser

Technical Field

The utility model relates to a dust removal technical field especially relates to a quick cleaner of blackboard eraser.

Background

The traditional blackboard eraser cleaning mode generally adopts the modes that the blackboard eraser strikes a wall surface or a table surface and the like, a large amount of dust can be generated, the cleaning effect is poor, and a large amount of dust is remained on the blackboard eraser.

The blackboard writing quality and the blackboard have great relation, and the blackboard can be matched with a new blackboard to wipe beautiful chalk characters of a teacher, so that the chalk characters of the teacher are extremely clear, neat and beautiful, and the blackboard not only is an aesthetic enjoyment to students, but also can stimulate the learning desire of the students.

When the blackboard is unclean, the words of the teacher appear fuzzy and unclear on the blackboard, so that the students can not see the aesthetic feeling of writing on the blackboard, and the learning interest is influenced. Although teachers make great efforts to clean the blackboard eraser, dust is scattered everywhere, but the effect is common. The dust of the blackboard eraser also affects the health of teachers, and a plurality of reports are reported on the internet.

To solve this problem, the conventional solution is to use various different materials of the eraser to solve the problem. However, these erasers often have various problems, such as an eraser using a replaceable eraser cloth, an eraser using a new sponge material, and the like. However, these solutions all suffer from various problems, such as the need for an eraser that replaces the eraser cloth, which increases cost and increases the problem of eraser management, which is inconvenient to use; the novel sponge material blackboard eraser has good effect when being used at the initial stage, but needs to be cleaned by water after dust accumulation, and is not easy to spin after being cleaned.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a quick blackboard eraser cleaner.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a quick cleaner for a blackboard eraser is characterized in that: comprises a motor, a centrifugal fan, a brush and a shell; centrifugal fan installs the top of casing and with the inside intercommunication of casing, set up the filter screen between centrifugal fan and the casing is inside, the one end of brush is connected through a pivot and an inside wall of casing, the other end with the output shaft of motor, the motor is fixed on another inside wall of casing, and the casing lateral part is equipped with the brush export, and a part of brush exposes in the brush exit, be equipped with on the casing with the dust entering box of the inside intercommunication of casing, one side that the dust got into the box has the opening, the opening just right brush export one side, the bottom sliding connection of casing has the dust to collect the drawer.

Preferably, photoelectric sensors are arranged on two sides of the brush outlet and used for detecting whether the blackboard eraser reaches a cleaning position or not

The utility model has the advantages that the efficiency of the teachers for cleaning the blackboard is greatly improved after the product is equipped in the classroom. When the device is used for cleaning the blackboard eraser, dust cannot be generated during cleaning due to the adsorption effect of the small dust collector; the cleaning speed is improved, the blackboard eraser can be cleaned within 10 seconds, and the traditional cleaning mode needs to be close to the cleaning effect of the device and needs several minutes; when the blackboard eraser cleaned by the device is used for erasing the blackboard, the effect is close to the erasing effect of a new blackboard eraser, and compared with the traditional blackboard eraser mode, the blackboard eraser is greatly reduced in chalk dust residue.

According to the national education institution development statistics bulletin of 2017, the education department shows that various schools at all levels are shared in China for 51 thousands of places. From rural primary schools with several classrooms to higher schools with hundreds of classrooms, the number of the classrooms in the whole country is huge, even if the classrooms of some schools are provided with 1-2 table wiping machines, the number is also considerable, and if the device can be put into commercial production, the device has great economic benefit.

More importantly, after the blackboard eraser cleaning machine is adopted, a teacher has a better blackboard cleaning effect and higher efficiency, the blackboard writing teaching quality can be effectively improved, the learning interest of students is improved, the influence of dust on the health of the teacher and the students is reduced, and the social benefit is immeasurable.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a perspective view of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings. As shown in fig. 1 and 2, a quick cleaner for blackboard eraser comprises a motor 1, a centrifugal fan 2, a brush 3 and a housing 4; the centrifugal fan is arranged at the top of the shell and is communicated with the inside of the shell, and the centrifugal fan works to generate a negative pressure state, so that the pressure in the cavity is reduced, and dust is adsorbed to the maximum extent. The centrifugal fan has proper power and low noise, and the negative pressure can meet the requirement. Set up filter screen 5 between centrifugal fan and the casing is inside, the one end of brush is connected through a inside wall of pivot and casing, the other end with the output shaft of motor, the motor is fixed on another inside wall of casing, drives the brush by the motor, realizes the cleaning work to the blackboard eraser. The selected motor has the characteristics of proper rotating speed, large torque, low noise and the like. The side part of the shell is provided with a brush outlet 6, and the size of the brush outlet is slightly smaller than that of the blackboard eraser, so that the blackboard eraser can be cleaned in a large area. The part of brush exposes in the brush exit, during the use, places the blackboard eraser in the top of this brush exit, and the brush can contact the blackboard eraser, be equipped with on the casing with the inside dust entering box 7 of intercommunication of casing, one side that the dust got into the box has opening 8, the opening just right brush exit one side, the dust of production enters into the casing from this opening part, for the convenience is collected the dust, the bottom sliding connection of casing has dust collection drawer 9. Sensitive photoelectric sensors 10 are arranged on two sides of the brush outlet and used for detecting whether the blackboard eraser is in place or not, such as a motor and a centrifugal fan which are started in place. By arranging the delay circuit on the control circuit of the motor and the centrifugal fan, when the blackboard eraser is cleaned and moved away, the photoelectric sensor outputs a new number to the delay circuit to control the centrifugal fan to continuously work to adsorb dust, so that the residual dust is prevented from flying out.

The working principle is as follows: this device is vertical placing, during the use, will treat the blackboard eraser of clearance and place the top of brush export, sensitive photoelectric sensor detects the blackboard eraser and starts centrifugal fan and motor after targetting in place, and centrifugal fan makes and produces the negative pressure in the casing, and the motor drives the brush and rotates, clears up the blackboard eraser surface, and the dust of production can be followed the dust and got into the case and get into in the casing, and under the effect of gravity, in the dust collection drawer of bottom can be fallen to the dust, pull out the drawer at interval a period and pour out the dust can.

The main technical indexes are as follows:

1) the power of the whole machine is less than 150 watts,

2) the cleaning time of the blackboard eraser is less than 10 seconds

3) Working noise lower than 60 decibels

4) The weight of the whole machine is 2.3 kg

5) The size of the whole machine is not more than 50X20X18 cm

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A quick cleaner for a blackboard eraser is characterized in that: comprises a motor, a centrifugal fan, a brush and a shell; centrifugal fan installs the top of casing and with the inside intercommunication of casing, set up the filter screen between centrifugal fan and the casing is inside, the one end of brush is connected through a pivot and an inside wall of casing, the other end with the output shaft of motor, the motor is fixed on another inside wall of casing, and the casing lateral part is equipped with the brush export, and a part of brush exposes in the brush exit, be equipped with on the casing with the dust entering box of the inside intercommunication of casing, one side that the dust got into the box has the opening, the opening just right brush export one side, the bottom sliding connection of casing has the dust to collect the drawer.

2. The quick blackboard eraser cleaner according to claim 1, wherein photoelectric sensors are provided on both sides of the brush outlet for detecting whether the blackboard eraser reaches the cleaning position.