CN203957660U - A kind of automatic blackboard eraser - Google Patents

Abstract

An automatic blackboard eraser, comprising: a first frame and a second frame; a rectangular parallelepiped wiper and a cylindrical wiper, spaced between the first frame and the second frame; a first motor, the first drive of the first motor The gear meshes with the second gear of the cylindrical wiper; the travel gear meshes with the rack; the second motor, the second drive gear of the second motor meshes with the third tooth; the guide wheel is engaged in the guide rail; the roller , moving along the lower edge of the blackboard; dust scraper, touching the outer surface of the cylindrical wiper; dust collecting box, collecting dust; limit switch, controlling the stroke of the automatic blackboard eraser; jack electrical contacts. The utility model arranges rectangular parallelepiped wipers and cylindrical wipers at intervals, and a dustproof cover is arranged on the outside, and a dust collection box is arranged on the lower side, which not only has simple structure, light weight and convenient use, but also has high wiping efficiency and excellent cleaning degree. It is practical and worth promoting.

Description

An automatic blackboard eraser

technical field

The utility model relates to the technical field of teaching appliances, in particular to an automatic blackboard eraser.

Background technique

At present, the large-scale blackboard erasers on the market are difficult to popularize and apply in the teaching field because of their large size, high price, poor dust-proof effect, and easy to dirty wipers, which bring a lot of inconvenience to teachers and students; or because of low dust removal efficiency , wasting too much time on cleaning the blackboard; or due to the poor dustproof effect, the dust in the classroom is flying, polluting the air, and bringing great safety hazards to the health of teachers and students.

It has become one of the technical problems urgently to be solved by those skilled in the art to seek a blackboard cleaning device with simple structure, easy operation, efficient cleaning and remarkable dust-proof effect.

Therefore for the problem that prior art exists, this case designer relies on the experience of being engaged in this industry for many years, actively studies and improves, so a kind of automatic blackboard eraser of the present utility model has been arranged.

Utility model content

The utility model is aimed at the traditional blackboard eraser in the prior art because of its large size, high price, poor dust-proof effect, and easy to dirty wiper, which brings a lot of inconvenience to teachers and students and is difficult to popularize in the teaching field. application; or due to low dust removal efficiency, too much time wasted on cleaning the blackboard; or due to poor dust prevention effect, dust flying in the classroom, polluting the air, bringing great safety hazards to the health of teachers and students and other defects to provide an automatic eraser.

In order to realize the purpose of the utility model, the utility model provides an automatic blackboard eraser, which includes: a first frame and a second frame, respectively arranged on the upper and lower sides of the blackboard, and arranged in parallel; the rectangular parallelepiped eraser a sheet, fixed between the first frame and the second frame by a first mounting shaft longitudinally arranged between the first frame and the second frame, and spanning the width of the blackboard; a cylindrical wiper sheet, The rectangular parallelepiped wiper is spaced between the first frame and the second frame through the second installation shaft longitudinally arranged between the first frame and the second frame, and spans the width of the blackboard ; The first motor is arranged on the first frame, and the first drive gear of the first motor meshes with the second gear of the second installation shaft of the cylindrical wiper; the travel gear passes through the third The installation shaft is arranged at intervals on the side of the first frame close to the blackboard, and the travel gear is engaged with the rack on the edge of the blackboard; the second motor is arranged on the first frame, And the second drive gear of the second motor meshes with the third gear of the third installation bearing; the guide wheel is arranged on the first frame adjacent to the One side of the blackboard, and is engaged in the guide track on the side of the blackboard different from that of the automatic blackboard eraser; the roller is arranged on the side of the second frame close to the blackboard through the fifth installation shaft, And move along the lower edge of the blackboard; the dust scraper is arranged between the first frame and the second frame, and the dust scraper is in contact with the outer surface of the cylindrical wiper; dust collection The box is movably arranged on the second frame, and is used to collect the dust of the rectangular parallelepiped wiper and the cylindrical wiper; the limit switch is arranged on both sides of the automatic blackboard eraser, and is used to control the automatic blackboard eraser. The stroke of the blackboard eraser; the charging contact is arranged on the automatic blackboard eraser, and is in electrical contact with the charging jack on the blackboard when the automatic blackboard eraser is at the limit position.

Optionally, a dust cover is provided outside the automatic blackboard eraser.

Optionally, a handle is further provided on the dust cover of the automatic blackboard eraser.

Optionally, the width of the rectangular parallelepiped wiping sheet is equal to the width of the blackboard.

Optionally, the width of the cylindrical wiping sheet is equal to the width of the blackboard.

Optionally, the shape of the cylindrical wiper is one of wavy line and straight line.

In summary, the automatic blackboard eraser of the utility model is provided with a rectangular parallelepiped wiper and a cylindrical wiper at intervals, and a dust cover is arranged outside the automatic blackboard eraser, and a dust collection box is arranged on the lower side of the automatic blackboard eraser. Not only the structure is simple, the weight is light, and the use is convenient, but also the wiping efficiency is high, the cleaning degree is excellent, and the practicability is strong, so it is worth popularizing.

Description of drawings

Shown in Fig. 1 is the front view of the utility model automatic blackboard eraser;

Shown in Fig. 2 is the enlarged view of part A of the automatic blackboard eraser of the present utility model;

Fig. 3 shows the side view of the utility model automatic blackboard eraser;

Figure 4 is a schematic diagram of the appearance structure of the utility model automatic blackboard eraser.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1-Fig. 3, Fig. 1 shows the front view of the utility model automatic blackboard eraser. Figure 2 is an enlarged view of part A of the automatic blackboard eraser of the present utility model. Fig. 3 shows the side view of the utility model automatic blackboard eraser. The automatic blackboard eraser 1 includes: a first frame 11 and a second frame 12, the first frame 11 and the second frame 12 are arranged on the upper and lower sides of the blackboard 3 respectively, and are arranged in parallel; the rectangular parallelepiped eraser A sheet 13, the rectangular parallelepiped wiper sheet 13 is fixed between the first frame 11 and the second frame 12 through the first installation shaft 131 longitudinally arranged between the first frame 11 and the second frame 12, and Across the width of the blackboard 3; a cylindrical wiper 14, the cylindrical wiper 14 is vertically arranged between the first frame 11 and the second frame 12 through the second installation shaft 141 and the rectangular parallelepiped The wiping sheet 13 is arranged at intervals between the first frame 11 and the second frame 12, and spans the width of the blackboard 3; a first motor 15, and the first motor 15 is arranged on the first frame 11 , and the first drive gear 151 of the first motor 15 meshes with the second gear 142 of the second installation shaft 141 of the cylindrical wiper 14; the travel gear 16, the travel gear 16 passes through the third installation shaft 161 is arranged at intervals on the side of the first frame 11 close to the blackboard 3, and the travel gear 16 is engaged with the rack 31 on the upper edge of the blackboard 3; the second motor 17, the second Two motors 17 are arranged on the first frame 11, and the second drive gear 171 of the second motor 17 meshes with the third gear 162 of the third installation bearing 161; the guide wheel 18, the guide wheel 18 is set on the side of the first frame 11 close to the blackboard 3 through the fourth installation shaft 181 in the shape of "┛", and is engaged on the side of the blackboard 3 different from the automatic blackboard eraser 1 in the guide track (not shown); the roller 19, the roller 19 is arranged on the side of the second frame 12 close to the blackboard 3 by the fifth installation shaft 191, and along the lower edge of the blackboard 3 Movement; the dust scraper 20, the dust scraper 20 is arranged between the first frame 11 and the second frame 12, and the dust scraper 20 is in contact with the outer surface of the cylindrical wiper 14 ; Dust box 21, said dust box 21 is movably arranged on said second frame 12, and is used to collect the dust of said cuboid wiper 13 and cylindrical wiper 14; Limit switch 22, said limit Position switch 22 is arranged on the both sides of described automatic blackboard eraser 1, is used for controlling the stroke of described automatic blackboard eraser 1; Charging contact 23, described charging contact 23 is arranged on the described automatic blackboard eraser 1, and When the automatic blackboard eraser 1 is at the limited position, it is in electrical contact with the charging jack 32 on the blackboard 3 to charge the energy storage unit (not shown) of the automatic blackboard eraser 1 .

In order to more intuitively disclose the technical solution of the utility model and highlight the beneficial effects of the utility model, it is now described in conjunction with specific implementation modes. In a specific implementation manner, the size and position of the functional components of the automatic blackboard eraser are merely examples, and should not be considered as limitations on the technical solution.

For the sake of aesthetics of the automatic blackboard eraser 1 of the present invention and to prevent the dust from flying, preferably, a dustproof cover 24 is provided outside the automatic blackboard eraser 1 . In order to enhance the practicability of the automatic blackboard eraser 1 of the present utility model, preferably, a handle 25 is further provided on the dustproof cover 24 of the automatic blackboard eraser 1, and the blackboard 3 can be manually cleaned when the power is cut off.

Please refer to Figure 4, and refer to Figures 1 to 3 in conjunction with Figure 4, which is a schematic diagram of the appearance and structure of the automatic blackboard eraser of the present invention. As a preferred embodiment, the width of the rectangular parallelepiped wiping piece 13 is equal to the width of the blackboard 3 . The width of the cylindrical wiping sheet 14 is equal to the width of the blackboard 2 . The cylindrical wiping sheet 14 includes, but is not limited to, made of materials such as sponges and brushes. The shape of the cylindrical wiper 14 includes but not limited to wavy lines, straight lines and the like.

As those skilled in the art, it is easy to understand that when using the automatic blackboard eraser 1 of the present invention to clean the blackboard 3, the travel gear 16 of the automatic blackboard eraser 1 is driven by the second motor 17 along the The rack 31 of the blackboard 3 moves; the roller 19 moves along the guide track of the blackboard 3 . The cylindrical wiping piece 14 is driven by the first motor 15 to wipe the blackboard 3 in a rotating manner. At the same time, the rectangular parallelepiped wiper 13 further wipes the blackboard 3 wiped by the cylindrical wiper 14 to complete the deep cleaning of the blackboard 3 . Obviously, during the cleaning process of the blackboard 3, the dust scraper 20 hangs the dust on the outer surface of the cylindrical wiper 14, and wipes the rectangular parallelepiped wiper 13 and the cylindrical wiper. The dust of the flakes 14 is collected in said dust collector 21 .

Under the control of the limit switch 22, when the automatic blackboard eraser 1 moves to the limit position, the charging contact 23 of the automatic blackboard eraser 1 is in electrical contact with the charging plug 32 on the blackboard 3, and is used for the charging of the automatic blackboard eraser 1. The energy storage unit of the automatic blackboard eraser 2 is charged.

In summary, the automatic blackboard eraser of the utility model is provided with a rectangular parallelepiped wiper and a cylindrical wiper at intervals, and a dust cover is arranged outside the automatic blackboard eraser, and a dust collection box is arranged on the lower side of the automatic blackboard eraser. Not only the structure is simple, the weight is light, and the use is convenient, but also the wiping efficiency is high, the cleaning degree is excellent, and the practicability is strong, so it is worth popularizing.

Those skilled in the art should understand that various modifications and variations can be made to the utility model without departing from the spirit or scope of the utility model. Therefore, if any modification or variation falls within the scope of protection of the appended claims and equivalents, it is considered that the present utility model covers such modification and variation.

Claims (6)

1. an automatic blackboard eraser, is characterized in that, described automatic blackboard eraser comprises:

The first framework and the second framework, be separately positioned on blackboard lower both sides, and be and be arranged in parallel;

Rectangular build pad, is fixed between described the first framework and the second framework by the first installation shaft being longitudinally arranged between described the first framework and the second framework, and across the width of described blackboard;

Column type pad, is disposed between described the first framework and the second framework by the second installation shaft and the described rectangular build pad being longitudinally arranged between described the first framework and the second framework, and across the width of described blackboard;

The first motor, is arranged on described the first framework, and the second gear of the first driven wheel of described the first motor and the second installation shaft of described column type pad is meshed;

The gear of advancing, is disposed on the side of closing on described blackboard of described the first framework by the 3rd installation shaft, and described in the gear of advancing be meshed with the tooth bar on described blackboard upper edge;

The second motor, is arranged on described the first framework, and the second driven wheel of described the second motor is meshed with the described the 3rd the 3rd gear that bearing is installed;

Directive wheel, is arranged on a side of closing on described blackboard of described the first framework by being the 4th installation shaft of " ┛ " type, and is fastened in the guide rail of described automatic blackboard eraser one side of differing from of described blackboard;

Roller, is arranged on a side of closing on described blackboard of described the second framework, and moves along edge under described blackboard by the 5th installation shaft;

Dust scraping plate, is arranged between described the first framework and described the second framework, and outside described dust scraping plate and described column type pad, surface is touched mutually;

Dust-collecting box, is movably arranged on described the second framework, and for collecting the dust of described rectangular build pad and cylinder type pad;

Limit switch, is arranged on the both sides of described automatic blackboard eraser, for controlling the stroke of described automatic blackboard eraser;

Charging contact, is arranged on described automatic blackboard and smears, and described automatic blackboard eraser be positioned at when spacing and described blackboard on charging jack electrically contact.

2. automatic blackboard eraser as claimed in claim 1, is characterized in that, the arranged outside dust cover of described automatic blackboard eraser.

3. automatic blackboard eraser as claimed in claim 2, is characterized in that, handle is further set on the dust cover of described automatic blackboard eraser.

4. automatic blackboard eraser as claimed in claim 1, is characterized in that, the width of described rectangular build pad equates with the width of described blackboard.

5. automatic blackboard eraser as claimed in claim 1, is characterized in that, the width of described column type pad equates with the width of described blackboard.

6. automatic blackboard eraser as claimed in claim 1, is characterized in that, described column type pad be shaped as one of them of wave, straight line.