CN210082762U

CN210082762U - Dustproof blackboard eraser

Info

Publication number: CN210082762U
Application number: CN201920749043.8U
Authority: CN
Inventors: 孙茂华
Original assignee: Beijing Wonderroad Magnesium Technology Co Ltd
Current assignee: Beijing Wonderroad Magnesium Technology Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-02-18
Anticipated expiration: 2029-05-23

Abstract

The utility model relates to a blackboard eraser field especially relates to a dustproof blackboard eraser, including the blackboard eraser frame, wipe word roller, drive mechanism, dust absorption mechanism and power, the blackboard eraser frame include blackboard eraser frame, connecting plate and connecting axle, the word roller of wiping include and wipe word sprocket, axis of rotation, wipe the cotton, dust absorption hole and axle center suction hole of word, drive mechanism include motor, motor sprocket and drive sprocket, dust absorption mechanism include three-way pipe, aspirator pump, storage dust box, dismantlement board and ventilative dustproof cloth, the utility model discloses can absorb chalk dust, clean environment reduces the harm of chalk dust to the human body.

Description

Dustproof blackboard eraser

Technical Field

The utility model relates to a blackboard eraser field especially relates to a dustproof blackboard eraser.

Background

At present, a large amount of chalk dust can be generated when a common blackboard eraser is used, the main component of the chalk dust is calcium carbonate or calcium sulfate, people can easily cause harm to lungs, upper respiratory tracts, eyes, ears and skin when contacting the large amount of chalk dust, and the common blackboard eraser generates great pollution to the environment and is not clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dustproof blackboard eraser can absorb the chalk dust, clean environment reduces the harm of chalk dust to the human body.

The purpose of the utility model is realized through the following technical scheme:

a dustproof blackboard eraser comprises an eraser frame, character erasing rollers, a transmission mechanism, a dust collection mechanism and a power supply, wherein the number of the character erasing rollers is two, the two character erasing rollers are oppositely and rotatably connected in the eraser frame, the transmission mechanism is fixedly connected in the eraser frame, the transmission mechanism is connected with the two character erasing rollers through chain transmission, the dust collection mechanism is fixedly connected on the eraser frame, the dust collection mechanism is rotatably connected with the two character erasing rollers, the power supply is fixedly connected on the eraser frame, and the power supply is connected with the transmission mechanism and the dust collection mechanism through wires.

The blackboard eraser frame comprises a blackboard eraser outer frame, a connecting plate and a connecting shaft, the blackboard eraser outer frame is a box body with an opening at the lower end face, the connecting plate is fixedly connected to the left front end of the outer side of the blackboard eraser outer frame, the connecting shaft is fixedly connected to the connecting plate, the two character erasing rollers are rotatably connected in the blackboard eraser outer frame, the transmission mechanism, the dust collection mechanism and the power supply are fixedly connected to the upper end of the blackboard eraser outer frame, and the transmission mechanism is rotatably connected with the connecting shaft.

The character-erasing roller comprises a character-erasing chain wheel, a rotating shaft, character-erasing cotton, dust suction holes and an axis suction hole, the character-erasing chain wheel is fixedly connected to one end of the rotating shaft, the axis of the rotating shaft is provided with the axis suction hole, the character-erasing cotton is fixedly connected to the rotating shaft, the character-erasing cotton is provided with a plurality of dust suction holes, the dust suction holes are communicated with the axis suction hole, the two rotating shafts are oppositely and rotatably connected in the blackboard eraser outer frame, the two character-erasing chain wheels are connected with the transmission mechanism through chain transmission, and the two axis suction holes are rotatably connected with the dust suction mechanism.

The transmission mechanism comprises a motor, a motor chain wheel and a transmission chain wheel, the motor chain wheel is fixedly connected to an output shaft of the motor, the transmission chain wheel is rotatably connected to a connecting shaft, the motor is fixedly connected to the blackboard eraser outer frame, the motor chain wheel, the transmission chain wheel and the two character erasing chain wheels are connected through chain transmission, and the motor is connected with a power supply through a wire.

The dust collection mechanism comprises a three-way pipe, a suction pump, a dust storage box, a detaching plate and breathable dustproof cloth, the dust storage box is fixedly connected to the eraser outer frame, the suction pump is fixedly connected to the front end of the dust storage box and communicated with the dust storage box, the upper end of the three-way pipe is communicated with the suction pump, the lower end of the three-way pipe is connected with two axis suction holes in a sealing and rotating mode, the detaching plate is arranged at the rear end of the dust storage box, the breathable dustproof cloth is arranged on the detaching plate, and the suction pump is connected with a power supply through a wire.

The power supply is provided with a switch.

The utility model has the advantages that: the utility model provides a dustproof blackboard eraser through the use of blackboard eraser frame, word roller, drive mechanism, dust absorption mechanism and power, can absorb the chalk dust, clean environment reduces the harm of chalk dust to the human body.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic structural diagram of the blackboard eraser frame according to the present invention;

FIG. 4 is a schematic view of the structure of the character-erasing roller of the present invention;

FIG. 5 is a schematic cross-sectional view of a character wiping roller according to the present invention;

fig. 6 is a schematic structural diagram of the transmission mechanism of the present invention;

fig. 7 is a schematic structural view of the dust suction mechanism of the present invention.

In the figure: an eraser frame 1; 1-1 of the eraser outer frame; a connecting plate 1-2; connecting shafts 1-3; a character wiping roller 2; a character erasing chain wheel 2-1; 2-2 of a rotating shaft; 2-3 parts of character erasing cotton; 2-4 of dust collection holes; 2-5 of an axis air suction hole; a transmission mechanism 3; a motor 3-1; a motor chain wheel 3-2; 3-3 of a transmission chain wheel; a dust suction mechanism 4; 4-1 of a three-way pipe; 4-2 of a getter pump; 4-3 of a dust storage box; disassembling the plates 4-4; 4-5 parts of breathable dustproof cloth; a power supply 5.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-7.

The first embodiment is as follows:

as shown in fig. 1-7, the dustproof blackboard eraser comprises an eraser frame 1, two erasing rollers 2, a transmission mechanism 3, a dust collection mechanism 4 and a power supply 5, wherein the erasing rollers 2 are arranged, the two erasing rollers 2 are oppositely and rotatably connected in the eraser frame 1, the transmission mechanism 3 is fixedly connected in the eraser frame 1, the transmission mechanism 3 is connected with the two erasing rollers 2 through chain transmission, the dust collection mechanism 4 is fixedly connected on the eraser frame 1, the dust collection mechanism 4 is rotatably connected with the two erasing rollers 2, the power supply 5 is fixedly connected on the eraser frame 1, and the power supply 5 is connected with the transmission mechanism 3 and the dust collection mechanism 4 through wires.

When the blackboard eraser is used, the transmission mechanism 3 and the dust absorption mechanism 4 are started simultaneously, the transmission mechanism 3 drives the two character erasing rollers 2 to rotate oppositely through chain transmission, then the handheld erasing frame 1 is used for erasing a blackboard through the two character erasing rollers 2, the character erasing rollers 2 rotating oppositely can erase chalk characters from the blackboard, and the generated chalk dust is absorbed by the character erasing rollers 2 through the dust absorption mechanism 4.

The second embodiment is as follows:

as shown in figures 1-7, the eraser frame 1 comprises an eraser outer frame 1-1, a connecting plate 1-2 and a connecting shaft 1-3, the eraser outer frame 1-1 is a box with an opening at the lower end surface, the connecting plate 1-2 is fixedly connected to the left front end of the outer side of the eraser outer frame 1-1, the connecting shaft 1-3 is fixedly connected to the connecting plate 1-2, two character erasing rollers 2 are rotatably connected to the eraser outer frame 1-1, a transmission mechanism 3, a dust collection mechanism 4 and a power supply 5 are fixedly connected to the upper end of the eraser outer frame 1-1, and the transmission mechanism 3 is rotatably connected with the connecting shaft 1-3.

When the blackboard eraser frame 1 is used, two character erasing rollers 2 are arranged inside the blackboard eraser outer frame 1-1, a transmission mechanism 3, a dust collection mechanism 4 and a power supply 5 are arranged outside the blackboard eraser outer frame 1-1, and the transmission mechanism 3 is arranged on the connecting plate 1-2 and the connecting shaft 1-3.

The third concrete implementation mode:

as shown in fig. 1-7, the character-erasing roller 2 comprises a character-erasing chain wheel 2-1 and a rotating shaft 2-2, the eraser comprises a brush body 2-3, dust suction holes 2-4 and an axis suction hole 2-5, a brush chain wheel 2-1 is fixedly connected to one end of a rotating shaft 2-2, the axis of the rotating shaft 2-2 is provided with the axis suction hole 2-5, the brush body 2-3 is fixedly connected to the rotating shaft 2-2, the brush body 2-3 is provided with a plurality of dust suction holes 2-4, the dust suction holes 2-4 are communicated with the axis suction hole 2-5, the two rotating shafts 2-2 are oppositely and rotatably connected into a eraser outer frame 1-1, the two brush chain wheels 2-1 are connected with a transmission mechanism 3 through chain transmission, and the two axis suction holes 2-5 are rotatably connected with the dust suction mechanism 4.

When the character erasing roller 2 is used, the transmission mechanism 3 drives the two character erasing chain wheels 2-1 to oppositely rotate through the chain, the two character erasing chain wheels 2-1 drive the two character erasing cottons 2-3 to oppositely rotate through the two rotating shafts 2-2, the character erasing cottons 2-3 which oppositely rotate can erase chalk characters, the character erasing cottons 2-3 absorb dust through the dust absorption holes 2-4 and simultaneously sweep the dust into the blackboard eraser outer frame 1-1 to prevent the dust from flying out of the blackboard eraser outer frame 1-1, the dust in the blackboard eraser outer frame 1-1 can be absorbed by the dust absorption holes 2-4 on the character erasing cottons 2-3, the dust absorbed into the dust absorption holes 2-4 enters the dust absorption mechanism 4 through the shaft center suction holes 2-5, thereby completing the dust absorption process, in the teaching of teachers, there are some disciplines that are more relative to the blackboard writing, like chinese, english etc., use this device can be better avoid chalk dust to produce when in class, influence the study of front row classmate.

The fourth concrete implementation mode:

as shown in figures 1-7, the transmission mechanism 3 comprises a motor 3-1, a motor chain wheel 3-2 and a transmission chain wheel 3-3, the motor chain wheel 3-2 is fixedly connected to an output shaft of the motor 3-1, the transmission chain wheel 3-3 is rotatably connected to a connecting shaft 1-3, the motor 3-1 is fixedly connected to an eraser outer frame 1-1, the motor chain wheel 3-2, the transmission chain wheel 3-3 and the two character-erasing chain wheels 2-1 are connected through chain transmission, and the motor 3-1 is connected with a power supply 5 through a wire.

When the transmission mechanism 3 is used, the motor 3-1 is connected with the power supply 5 for starting, the motor 3-1 drives the transmission chain wheel 3-3 and the two character erasing chain wheels 2-1 through the chain of the motor chain wheel 3-2, so that the two character erasing chain wheels 2-1 rotate oppositely.

The fifth concrete implementation mode:

as shown in the figures 1-7, the dust collection mechanism 4 comprises a three-way pipe 4-1, a suction pump 4-2, a dust storage box 4-3, a detaching plate 4-4 and breathable dustproof cloth 4-5, the dust storage box 4-3 is fixedly connected to an eraser outer frame 1-1, the suction pump 4-2 is fixedly connected to the front end of the dust storage box 4-3, the suction pump 4-2 is communicated with the dust storage box 4-3, the upper end of the three-way pipe 4-1 is communicated with the suction pump 4-2, the lower end of the three-way pipe 4-1 is in sealed rotating connection with two axial suction holes 2-5, the detaching plate 4-4 is arranged at the rear end of the dust storage box 4-3, the breathable dustproof cloth 4-5 is arranged on the detaching plate 4-4, and the suction pump 4-2 is connected with a power supply 5 through a lead.

When the dust collection mechanism 4 is used, the suction pump 4-2 is connected with the power supply 5 to be started, the suction pump 4-2 sucks air into the two axis suction holes 2-5 through the three-way pipe 4-1 and blows the absorbed dust into the dust storage box 4-3, the dismounting plate 4-4 at the rear end of the dust storage box 4-3 can be dismounted to dump out the dust when the dust in the dust storage box 4-3 is more, the suction pump 4-2 can normally work through the breathable dustproof cloth 4-5, the PYP370A vacuum pump can be selected as the model of the suction pump 4-2, and the vacuum pump can also be selected in the market according to actual requirements.

The sixth specific implementation mode:

as shown in fig. 1-7, the power supply 5 is provided with a switch. The switch on the power supply 5 can better control the motor 3-1 and the getter pump 4-2.

The utility model relates to a dustproof blackboard eraser, its theory of use does: when the blackboard eraser is used, the transmission mechanism 3 and the dust absorption mechanism 4 are started simultaneously, the transmission mechanism 3 drives the two character erasing rollers 2 to rotate oppositely through chain transmission, then the handheld erasing frame 1 is used for erasing a blackboard through the two character erasing rollers 2, the character erasing rollers 2 rotating oppositely can erase chalk characters from the blackboard, and the generated chalk dust is absorbed by the character erasing rollers 2 through the dust absorption mechanism 4. When the blackboard eraser frame 1 is used, two character erasing rollers 2 are arranged inside the blackboard eraser outer frame 1-1, a transmission mechanism 3, a dust collection mechanism 4 and a power supply 5 are arranged outside the blackboard eraser outer frame 1-1, and the transmission mechanism 3 is arranged on the connecting plate 1-2 and the connecting shaft 1-3. When the character erasing roller 2 is used, the transmission mechanism 3 drives the two character erasing chain wheels 2-1 to oppositely rotate through the chain, the two character erasing chain wheels 2-1 drive the two character erasing cottons 2-3 to oppositely rotate through the two rotating shafts 2-2, the character erasing cottons 2-3 which oppositely rotate can erase chalk characters, the character erasing cottons 2-3 absorb dust through the dust absorption holes 2-4 and simultaneously sweep the dust into the blackboard eraser outer frame 1-1 to prevent the dust from flying out of the blackboard eraser outer frame 1-1, the dust in the blackboard eraser outer frame 1-1 can be absorbed by the dust absorption holes 2-4 on the character erasing cottons 2-3, the dust absorbed into the dust absorption holes 2-4 enters the dust absorption mechanism 4 through the shaft center suction holes 2-5, thereby completing the dust absorption process, in the teaching of teachers, there are some disciplines that are more relative to the blackboard writing, like chinese, english etc., use this device can be better avoid chalk dust to produce when in class, influence the study of front row classmate. When the transmission mechanism 3 is used, the motor 3-1 is connected with the power supply 5 for starting, the motor 3-1 drives the transmission chain wheel 3-3 and the two character erasing chain wheels 2-1 through the chain of the motor chain wheel 3-2, so that the two character erasing chain wheels 2-1 rotate oppositely. When the dust collection mechanism 4 is used, the suction pump 4-2 is connected with the power supply 5 to be started, the suction pump 4-2 sucks air into the two axis suction holes 2-5 through the three-way pipe 4-1 and blows the absorbed dust into the dust storage box 4-3, the dismounting plate 4-4 at the rear end of the dust storage box 4-3 can be dismounted to dump out the dust when the dust in the dust storage box 4-3 is more, the suction pump 4-2 can normally work through the breathable dustproof cloth 4-5, the PYP370A vacuum pump can be selected as the model of the suction pump 4-2, and the vacuum pump can also be selected in the market according to actual requirements. The switch on the power supply 5 can better control the motor 3-1 and the getter pump 4-2.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art can make variations within the scope of the present invention; modifying; addition or replacement also belong to the protection scope of the utility model.

Claims

1. The utility model provides a dustproof blackboard eraser, includes blackboard eraser frame (1), word roller (2), drive mechanism (3), dust absorption mechanism (4) and power (5), its characterized in that: the eraser is characterized in that the number of the erasing rollers (2) is two, the two erasing rollers (2) are rotatably connected in the eraser frame (1), the transmission mechanism (3) is fixedly connected in the eraser frame (1), the transmission mechanism (3) is in chain transmission connection with the two erasing rollers (2), the dust collection mechanism (4) is fixedly connected on the eraser frame (1), the dust collection mechanism (4) is rotatably connected with the two erasing rollers (2), the power supply (5) is fixedly connected on the eraser frame (1), and the power supply (5) is connected with the transmission mechanism (3) and the dust collection mechanism (4) through wires.

2. The dustproof blackboard eraser according to claim 1, wherein: the blackboard eraser frame (1) comprises a blackboard eraser outer frame (1-1), a connecting plate (1-2) and a connecting shaft (1-3), the blackboard eraser outer frame (1-1) is a box body with an opening at the lower end face, the connecting plate (1-2) is fixedly connected to the left front end of the outer side of the blackboard eraser outer frame (1-1), the connecting shaft (1-3) is fixedly connected to the connecting plate (1-2), two character erasing rollers (2) are rotatably connected into the blackboard eraser outer frame (1-1), a transmission mechanism (3), a dust collection mechanism (4) and a power supply (5) are fixedly connected to the upper end of the blackboard eraser outer frame (1-1), and the transmission mechanism (3) is rotatably connected with the connecting shaft (1-3).

3. The dustproof blackboard eraser according to claim 2, characterized in that: the character erasing roller (2) comprises character erasing chain wheels (2-1), rotating shafts (2-2), character erasing cotton (2-3), dust suction holes (2-4) and axis suction holes (2-5), the character erasing chain wheels (2-1) are fixedly connected to one end of the rotating shafts (2-2), the axis of the rotating shafts (2-2) is provided with the axis suction holes (2-5), the character erasing cotton (2-3) is fixedly connected to the rotating shafts (2-2), the character erasing cotton (2-3) is provided with a plurality of dust suction holes (2-4), the dust suction holes (2-4) are communicated with the axis suction holes (2-5), the two rotating shafts (2-2) are rotatably connected in a blackboard eraser outer frame (1-1), and the two character erasing chain wheels (2-1) are connected with a transmission mechanism (3) through chain transmission, the two axis suction holes (2-5) are rotationally connected with the dust suction mechanism (4).

4. The dustproof blackboard eraser according to claim 3, wherein: the blackboard eraser is characterized in that the transmission mechanism (3) comprises a motor (3-1), a motor chain wheel (3-2) and a transmission chain wheel (3-3), the motor chain wheel (3-2) is fixedly connected to an output shaft of the motor (3-1), the transmission chain wheel (3-3) is rotatably connected to the connecting shaft (1-3), the motor (3-1) is fixedly connected to the blackboard eraser outer frame (1-1), the motor chain wheel (3-2), the transmission chain wheel (3-3) and the two character erasing chain wheels (2-1) are connected through chain transmission, and the motor (3-1) is connected with the power supply (5) through a wire.

5. The dustproof blackboard eraser according to claim 4, wherein: the dust collection mechanism (4) comprises a three-way pipe (4-1), a suction pump (4-2), a dust storage box (4-3), a detaching plate (4-4) and breathable dustproof cloth (4-5), the dust storage box (4-3) is fixedly connected to the eraser outer frame (1-1), the suction pump (4-2) is fixedly connected to the front end of the dust storage box (4-3), the suction pump (4-2) is communicated with the dust storage box (4-3), the upper end of the three-way pipe (4-1) is communicated with the suction pump (4-2), the lower end of the three-way pipe (4-1) is in sealed and rotating connection with two axis suction holes (2-5), the detaching plate (4-4) is arranged at the rear end of the dust storage box (4-3), the breathable dustproof cloth (4-5) is arranged on the detaching plate (4-4), the getter pump (4-2) is connected with the power supply (5) through a lead.

6. The dustproof blackboard eraser according to claim 5, wherein: the power supply (5) is provided with a switch.