CN214001143U

CN214001143U - Electric dust-absorbing blackboard eraser

Info

Publication number: CN214001143U
Application number: CN202022483566.8U
Authority: CN
Inventors: 卢文升
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-08-20
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses an electric dust-absorbing blackboard eraser, the main technical characteristics are: set up two sets of helical blade on the transmission shaft, the screw thread department at the transmission shaft lower extreme is installed to the brush dish, nut is respectively installed at the upper and lower both ends of brush dish, the nut is connected the brush dish with the screw fastening of transmission shaft, the circular cone end of casing body is equipped with the dust exhaust hole, the circular cone end surface cladding of casing body strains the dirt pad, the upper end of casing body sets up two bearings, the motor mount pad is connected with the up end of casing body, the inside at the motor mount pad is installed to the motor, motor upper end installation battery, the upper end at the motor mount pad is installed to the end cover, the transmission shaft upper end is passed the bearing and is connected with the axle extension of motor, the felt is installed in the inside of motor mount pad and is connected with the transmission shaft contact, the lower extreme and the casing body threaded connection of collection dirt shell, the upper end and the motor mount pad threaded connection of collection dirt shell. The beneficial effects are that: small volume, flexible use, no limitation, and higher blackboard erasing effect and dust removal efficiency.

Description

Electric dust-absorbing blackboard eraser

Technical Field

The utility model relates to a blackboard eraser, in particular to an electric dust-absorbing blackboard eraser.

Background

The existing blackboard is generally erased manually in a rectangular shape, the erasing efficiency is low, and chalk dust after being erased can float in the air, pollute the air and can be sucked into the human body to be unfavorable for health. Secondly, in the process of erasing the blackboard, chalk dust falls on the back of the hand, the cuffs of the clothes and the clothes, and personal hygiene of a person who erases the blackboard is affected.

The chinese utility model patent with application number CN201120386330.0 discloses an electric blackboard eraser, which adopts a motor output end provided with a rolling brush; the lower part of the motor shell is connected with a supporting rod, and a lead connected with a motor penetrates through the inside of the supporting rod; the lower part of the lead is connected with a transformer in series, and the tail end of the lead at the lower part of the transformer is connected with a plug; the dust collector is fixed on the top of the supporting rod and covers the side of the rolling brush, the dust collector is a semi-arc-shaped shell, and brush bristles are uniformly arranged on the surface of the rolling brush. Although the structure is time-saving and labor-saving in blackboard cleaning, the powder cleaned by the blackboard can be collected, and the air quality in a classroom is ensured, but the existence of the support rod and the plug ensures that the technical scheme can be only used in a limited cleaning space, and the blackboard cleaning device is large in volume, large in occupied area and inconvenient to use in the course of class.

Disclosure of Invention

The utility model aims to overcome the shortcomings in the technical problems and provide an electric dust-absorbing blackboard eraser which is small in size and flexible and unlimited in use.

In order to overcome the technical problem, the utility model discloses a technical scheme is:

including brush dish, nut, transmission shaft, shell body, strain dirt pad, collection dirt shell, motor mount pad, motor, end cover, bearing, battery, felt, characterized by: the lower end of the transmission shaft is provided with threads, the transmission shaft is provided with two groups of helical blades, the brush disc is arranged at the thread part at the lower end of the transmission shaft, the upper end and the lower end of the brush disc are respectively provided with a nut, the nuts are fastened with the threads of the transmission shaft and connected with the brush disc, the conical end of the shell body is provided with a dust exhaust hole, the outer surface of the conical end of the shell body is coated with a dust filtering pad, the upper end of the shell body is provided with two bearings, the motor mounting seat is connected with the upper end surface of the shell body, the motor is arranged in the motor mounting seat, the upper end of the motor is provided with a battery, an end cover is arranged at the upper end of the motor mounting seat, the upper end of the transmission shaft penetrates through the bearings and is connected with a shaft extension of the motor, the felt is arranged in the motor mounting seat and is in contact connection with the transmission shaft, the end cover is provided with a switch for controlling the motor and a charging port for battery life-driving, the battery are respectively connected with a controller wire on the motor, the lower end of the dust collecting shell is in threaded connection with the shell body, and the upper end of the dust collecting shell is in threaded connection with the motor mounting seat.

Furthermore, a circular hole is formed in the brush disc.

Further, a handle is arranged at the upper end of the dust collection shell.

Furthermore, the material of the dust collecting shell is transparent plastic.

Compared with the prior art, the beneficial effects of the utility model are that: small volume, flexible use, no limitation, and higher blackboard erasing effect and dust removal efficiency.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of the area a shown in fig. 1.

Fig. 3 is a partially enlarged view of the region B shown in fig. 1.

Detailed Description

As shown in fig. 1-3, comprises a brush disc 1, a nut 2, a transmission shaft 3, a shell body 5, a dust filtering pad 11, a dust collecting shell 6, a motor mounting seat 7, a motor 12, an end cover 14, a bearing 8, a battery 13 and a felt 9, wherein: the inner holes of the upper end and the lower end of the dust collecting shell are respectively provided with a screw thread, the lower end of the transmission shaft is provided with a screw thread, the transmission shaft is provided with two groups of helical blades 4, the brush disc is arranged at the screw thread of the lower end of the transmission shaft, the upper end and the lower end of the brush disc are respectively provided with a nut, the nuts are tightly connected with the screw thread of the transmission shaft, the conical end of the shell body is provided with a dust exhaust hole 10, the outer surface of the conical end of the shell body is coated with a dust filtering pad, the upper end of the shell body is provided with two bearings, a motor mounting seat is connected with the upper end surface of the shell body, the motor is arranged in the motor mounting seat, the upper end of the motor is provided with a battery, an end cover is arranged at the upper end of the motor mounting seat, the upper end of the transmission shaft penetrates through the bearings and is connected with a shaft, the charging port is connected with a battery line, the lower end inner hole of the dust collection shell is connected with the shell body in a threaded manner, and the upper end inner hole of the dust collection shell is connected with the motor mounting seat in a threaded manner.

Further, a circular hole 18 is formed in the brush disc.

Further, a handle 17 is provided at an upper end of the dust collection housing.

Furthermore, the material of the dust collecting shell is transparent plastic.

During operation, handle 17 on the handheld collection dirt shell 6, press the switch of handle below, the motor drives the rotation axis rotation, the rotation axis drives the brush dish rotation, be the face contact form behind will brushing dish and the blackboard laminating, it cleans the effect better cleaner, when the chalk handwriting is erased to the brush dish, under helical blade's rotation effect, inhale the chalk dust by round hole 18 on the brush dish, wind speed through helical blade's spiral lead angle and helical blade production gets into collection dirt shell with the chalk dust by the dust exhaust hole of the circular cone end of shell body in, dust collection efficiency is high. Because the collection dirt shell adopts transparent plastic material, its inside chalk dust is visible with the naked eye, when the chalk dust in will clearing up the collection dirt shell, through rotatory handle 17, lift it off, the dismouting is very convenient, can realize the continuation of the journey for the battery through charging mouth 16, uses in a flexible way not restricted, and the effect of wiping the blackboard and the efficiency of removing dust are higher.

The present invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. The utility model provides an electric dust-absorbing blackboard eraser, includes brush dish, nut, transmission shaft, shell body, dust filtering pad, collection dirt shell, motor mount pad, motor, end cover, bearing, battery, felt, characterized by: the lower end of the transmission shaft is provided with threads, the transmission shaft is provided with two groups of helical blades, the brush disc is arranged at the thread part at the lower end of the transmission shaft, the upper end and the lower end of the brush disc are respectively provided with a nut, the nuts are fastened with the threads of the transmission shaft and connected with the brush disc, the conical end of the shell body is provided with a dust exhaust hole, the outer surface of the conical end of the shell body is coated with a dust filtering pad, the upper end of the shell body is provided with two bearings, the motor mounting seat is connected with the upper end surface of the shell body, the motor is arranged in the motor mounting seat, the upper end of the motor is provided with a battery, an end cover is arranged at the upper end of the motor mounting seat, the upper end of the transmission shaft penetrates through the bearings and is connected with a shaft extension of the motor, the felt is arranged in the motor mounting seat and is in contact connection with the transmission shaft, the end cover is provided with a switch for controlling the motor and a charging port for battery life-driving, the battery are respectively connected with a controller wire on the motor, the lower end of the dust collecting shell is in threaded connection with the shell body, and the upper end of the dust collecting shell is in threaded connection with the motor mounting seat.

2. The electric dust-absorbing blackboard eraser according to claim 1, wherein: the brush disc is provided with a round hole.

3. The electric dust-absorbing blackboard eraser according to claim 1, wherein: the upper end of the dust collecting shell is provided with a handle.

4. An electric dust-collecting blackboard eraser according to claim 1 or claim 3, wherein: the material of the dust collecting shell is transparent plastic.