CN211994901U

CN211994901U - Dust-free blackboard eraser

Info

Publication number: CN211994901U
Application number: CN202020488220.4U
Authority: CN
Inventors: 赵雨青
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-11-24
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses a dustless blackboard eraser, including the blackboard eraser piece, the one side of blackboard eraser piece is opened flutedly, the notch of recess is sealed through the otter board, the detachable annular sponge that is provided with of circumference along the recess notch on the otter board, the opening has been seted up to the otter board, be equipped with the pivot in the opening, be equipped with the brush on the axle body of pivot, be equipped with spraying mechanism on the blackboard eraser piece, still be equipped with the water tank on the blackboard eraser piece, the water tank leads to pipe and is connected with spraying mechanism, the chamber door of water tank is located the surface of blackboard eraser piece, be equipped with dust absorption mechanism in the recess, dust absorption mechanism's dust absorption portion is located the inside of recess, dust absorption mechanism's dust collection box inlays on the diapire of recess. The utility model discloses when the teacher used the blackboard eraser, automatic opening dust absorption mechanism carries out the dust absorption, uses spraying mechanism to prevent simultaneously that not by the inspiratory dust of dust catcher flies upward, just so can absorb the dust completely, prevents that teacher and student from suffering from respiratory disease.

Description

Dust-free blackboard eraser

Technical Field

The utility model relates to a blackboard eraser technical field, in particular to dustless blackboard eraser.

Background

In teaching, teachers write contents to be written on a blackboard with chalk, and when the written writing needs to be erased, the teacher usually erases the writing on the blackboard completely by using the blackboard eraser. Present blackboard eraser is a plank, with sticky person's sponge on the one side of plank, the teacher just uses the sponge to clean the blackboard, but at the in-process of cleaning, can produce the dust, so for a long time, will make teacher and the close meeting of college that is apart from the blackboard infect the disease of respiratory track.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that exists among the above-mentioned prior art, provide a dustless blackboard eraser, when the teacher used the blackboard eraser, automatic opening dust absorption mechanism carries out the dust absorption, uses spraying mechanism to prevent simultaneously not being flown upward by the inspiratory dust of dust catcher, just so can absorb the dust is complete, prevents that teacher and student from suffering from respiratory disease.

To achieve the purpose, the utility model provides a dust-free blackboard eraser, which comprises a blackboard eraser block, wherein one surface of the blackboard eraser block is provided with a groove, the notch of the groove is sealed by a screen plate, the screen plate is provided with an annular sponge which can be disassembled along the circumferential direction of the notch of the groove, the outer edge of the sponge is contacted with the groove wall of the groove, the place of the screen plate which is not connected with the sponge is provided with a strip-shaped through hole, the through hole is internally provided with a rotating shaft along the length direction, one end of the rotating shaft is connected with an output shaft of a motor, the motor is fixed on the through hole wall at one side of the through hole, the other end of the rotating shaft is connected with the through hole wall at the other side of the through hole by a bearing, the shaft body of the rotating shaft is provided with a brush, the blackboard eraser block is respectively and uniformly provided with a plurality of spraying, the blackboard eraser comprises a blackboard eraser block, a water tank, a dust collection mechanism, a dust collection part, a dust collection box, a handle and a power supply device, wherein the box door of the water tank is positioned on the surface of the blackboard eraser block, the dust collection mechanism is arranged in the groove, the dust collection part of the dust collection mechanism is positioned in the groove, the dust collection box of the dust collection mechanism is embedded on the bottom wall of the groove, the box door of the dust collection box of the dust collection mechanism is positioned on the surface of the blackboard eraser block, the blackboard eraser block is further provided with the handle and the power supply device, the.

Further, the switch is a touch switch and is arranged on the surface of the handle opposite to the eraser block.

Furthermore, the number of the switches is multiple, the switches are sequentially arranged along the length direction of the handle respectively, and each switch is connected into the circuit in parallel.

Furthermore, a circle of communicated annular grooves are formed in the blackboard eraser block along the circumferential direction of the groove opening, the spraying mechanism is arranged at the groove bottom of the annular grooves, and a spray head of the spraying mechanism and the groove opening of the annular grooves are located on the same horizontal plane.

Further, the mesh plate is visible between the sponge and the through opening.

Furthermore, the water pipe is arranged on the wall of the groove in a manner of being attached to the groove.

The utility model provides a pair of dustless blackboard eraser has following beneficial effect:

1. when a teacher uses the blackboard eraser, the dust collection mechanism is automatically opened to collect dust, and the spraying mechanism is used for preventing dust which is not sucked by the dust collector from flying, so that the dust can be completely absorbed, and the teacher and students are prevented from suffering from respiratory diseases;

2. when the blackboard is wiped, the sponge and the brush are used simultaneously, common handwriting is wiped off through the sponge, and the brush is used for scrubbing stubborn handwriting, so that the wiping effect is better when the blackboard is wiped;

3. touch switch sets up on hand for the teacher as long as when picking up the blackboard eraser, dust absorption mechanism and spraying mechanism just can automatic start, need not chip control, and simultaneously, the buildding of circuit is also very simple, the maintenance in easy later stage.

Drawings

FIG. 1 is a schematic view of the overall structure of a dust-free blackboard eraser according to the present invention;

FIG. 2 is a schematic top view of a dust-free eraser according to the present invention;

fig. 3 is a schematic view of a longitudinal cross-sectional view of a structure of a dust-free blackboard eraser provided by the present invention.

Description of reference numerals:

1. a handle; 2. a switch; 3. a dust suction mechanism; 4. an eraser block; 5. a water tank; 6. a spraying mechanism; 7. A screen plate; 8. a motor; 9. a rotating shaft; 10. a bearing; 11. a groove; 12. a port; 13. a brush; 14. A sponge.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the invention is not limited by the embodiments.

In the present application, the type and structure of components that are not specified are all the prior art known to those skilled in the art, and those skilled in the art can set the components according to the needs of the actual situation, and the embodiments of the present application are not specifically limited.

Example 1

This embodiment provides a dustless blackboard eraser, realizes through essential necessary technical characteristic the utility model discloses to solve the problem that technical background part proposed in this application file.

Specifically, as shown in fig. 1-3, the embodiment of the present invention provides a dust-free blackboard eraser, which comprises a blackboard eraser block 4, wherein one side of the blackboard eraser block 4 is provided with a groove 11, the notch of the groove 11 is sealed by a screen plate 7, the screen plate 7 is provided with an annular sponge 14 detachably arranged along the circumferential direction of the notch of the groove 11, the outer edge of the sponge 14 is in contact with the groove wall of the groove 11, the screen plate 7 is not connected with the sponge 14 and is provided with a strip-shaped through hole 12, a rotating shaft 9 is arranged in the through hole 12 along the length direction, one end of the rotating shaft 9 is connected with an output shaft of a motor 8, the motor 8 is fixed on one side through hole wall of the through hole 12, the other end of the rotating shaft 9 is connected with the other side through hole wall of the through hole 12 through a bearing 10, a brush 13 is arranged on the shaft body of the rotating shaft 9, a plurality of spraying mechanisms 6 are respectively and uniformly arranged, the blackboard eraser comprises a blackboard eraser block 4 and is characterized in that a water tank 5 is further arranged on the blackboard eraser block 4, the water tank 5 is connected with a spraying mechanism 6 through a water pipe, a box door of the water tank 5 is positioned on the surface of the blackboard eraser block 4, a dust suction mechanism 3 is arranged in a groove 11, a dust suction part of the dust suction mechanism 3 is positioned in the groove 11, a dust collection box of the dust suction mechanism 3 is embedded on the bottom wall of the groove 11, a box door of the dust collection box of the dust suction mechanism 3 is positioned on the surface of the blackboard eraser block 4, a handle 1 and a power supply device are further arranged on the blackboard eraser block 4, a switch 2 is arranged on the handle 1, and the power supply device is respectively and electrically connected.

When the utility model is used, a user presses the switch 2 on the handle 1, at the moment, the power supply device respectively supplies power to the spraying mechanism 6, the dust absorption mechanism 3 and the motor 8, the spraying mechanism 6, the dust absorption mechanism 3 and the motor 8 are respectively connected with the power supply device in series, the spraying mechanism 6, the dust absorption mechanism 3 and the motor 8 start to work simultaneously, at the moment, one side of the sponge 14 is wiped on the blackboard, at the moment, the rotation of the motor 8 enables the brush 13 to rotate around the rotating shaft 9, so that the chalk dust on the blackboard can be brushed off, and at the same time, because the dust absorption mechanism 3 is arranged in the blackboard eraser block 4, the dust on the blackboard is absorbed when the blackboard is erased, the dust on the blackboard passes through the screen plate 7 and is absorbed into the dust absorption mechanism 3, since the edge of the screen 7 has a ring of sponge 14, the dust is enclosed in the sponge 14, and does not cause dust suction damage to the person who wipes the blackboard. Meanwhile, the sponge 14 can also be used for wiping the blackboard, and as for the dust generated on the two sides of the sponge 14 and the dust on the closed side of the sponge 14, the dust is sucked by the dust suction mechanism 3 and the dust generated on the outer side of the sponge 14, as the spraying mechanism 6 can be used for spraying, the dust can be combined with the spray and cannot float in the air, so that the damage to the respiratory tract of a human body is caused. In addition, the blackboard can be humidified by using the spraying mechanism 6, so that the blackboard is cleaner when being erased.

Example 2

The present embodiment is based on example 1 and optimizes the implementation scheme in example 1, so that the present embodiment is more stable and better in performance during the operation process, but the present embodiment is not limited to the implementation manner described in the present embodiment.

In the present embodiment, as shown in fig. 1 to 3, the switch 2 is a touch switch, and the switch 2 is disposed on a surface of the handle 1 opposite to the eraser block 4. Furthermore, the number of the switches 2 is multiple, the switches 2 are sequentially arranged along the length direction of the handle 1, and each switch 2 is connected to the circuit in parallel.

In the embodiment, the switch 2 is a touch switch, and the switch 2 is arranged on the opposite surface of the blackboard eraser block 4, so that when a user uses the blackboard eraser, the user can hold the handle 1 by hand and touch the switch 2, and the switch 2 can be automatically turned on to complete the connection of a circuit when the user uses the blackboard eraser.

In this embodiment, the eraser block 4 is provided with a circle of communicated annular grooves along the circumferential direction of the notch of the groove 11, the spraying mechanism 6 is arranged at the bottom of the annular groove, and the spray head of the spraying mechanism 6 and the notch of the annular groove are in the same horizontal plane.

With spraying mechanism 6 embeds in the tank bottom of recess 11, only spraying mechanism 6's shower nozzle with the notch of ring channel is in same horizontal plane, like this when the shower nozzle water spray, can also be suitable spout on sponge 14 for be stained with water on the sponge 14, more clean when wiping the blackboard like this, simultaneously, because sponge 14 is flexible material, when wiping the blackboard, can have the compression to the sponge unavoidably, with spraying mechanism 6's shower nozzle with the notch of ring channel is in same horizontal plane, makes spraying mechanism 6 can not contact with the blackboard, prevents the damage of product.

In this embodiment, the mesh plate 7 is visible between the sponge 14 and the through opening 12. This leaves more room for dust generated after wiping and the suction mechanism 3 sucks dust cleaner. Meanwhile, in the embodiment, the water pipe is arranged on the wall of the groove 11.

To sum up, the utility model discloses a dust-free blackboard eraser, which comprises a blackboard eraser block, one surface of the blackboard eraser block is provided with a groove, the notch of the groove is sealed by a screen plate, the screen plate is provided with an annular sponge which can be disassembled along the circumferential direction of the notch of the groove, the outer edge of the sponge is contacted with the groove wall of the groove, the place where the screen plate is not connected with the sponge is provided with a strip-shaped through hole, the inside of the through hole is provided with a rotating shaft along the length direction, one end of the rotating shaft is connected with an output shaft of a motor, the motor is fixed on the through hole wall at one side of the through hole, the other end of the rotating shaft is connected with the through wall at the other side of the through hole by a bearing, the shaft body of the rotating shaft is provided with a brush, the edge of the notch of the blackboard eraser block is respectively and uniformly provided with a plurality of spraying mechanisms, the, the dust collection mechanism is characterized in that a dust collection part of the dust collection mechanism is located inside the groove, a dust collection box of the dust collection mechanism is embedded in the bottom wall of the groove, a box door of the dust collection box of the dust collection mechanism is located on the surface of the eraser block, a handle and a power supply device are further arranged on the eraser block, a switch is arranged on the handle, and the power supply device is electrically connected with the switch, the spraying mechanism, the dust collection mechanism and the motor respectively. The utility model discloses when the teacher used the blackboard eraser, automatic opening dust absorption mechanism carries out the dust absorption, uses spraying mechanism to prevent simultaneously that not by the inspiratory dust of dust catcher flies upward, just so can absorb the dust completely, prevents that teacher and student from suffering from respiratory disease.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. A dust-free blackboard eraser comprises a blackboard eraser block (4) and is characterized in that one side of the blackboard eraser block (4) is provided with a groove (11), a notch of the groove (11) is sealed through a screen plate (7), the screen plate (7) is provided with an annular sponge (14) along the circumferential direction of the notch of the groove (11) in a detachable mode, the outer edge of the sponge (14) is in contact with the groove wall of the groove (11), a long-strip-shaped through hole (12) is formed in a position where the screen plate (7) is not connected with the sponge (14), a rotating shaft (9) is arranged in the through hole (12) along the length direction of the through hole, one end of the rotating shaft (9) is connected with an output shaft of a motor (8), the motor (8) is fixed on the through hole wall on one side of the through hole (12), the other end of the rotating shaft (9) is connected with the through hole wall on the other side of the through hole (12) through a bearing (, a plurality of spraying mechanisms (6) are respectively and uniformly arranged on the blackboard eraser block (4) along the edge of the notch of the groove (11), a water tank (5) is also arranged on the blackboard eraser block (4), the water tank (5) is connected with the spraying mechanisms (6) through a water pipe, the box door of the water tank (5) is positioned on the surface of the blackboard eraser block (4), a dust collection mechanism (3) is arranged in the groove (11), a dust collection part of the dust collection mechanism (3) is positioned in the groove (11), a dust collection box of the dust collection mechanism (3) is embedded on the bottom wall of the groove (11), a box door of the dust collection box of the dust collection mechanism (3) is positioned on the surface of the eraser block (4), the blackboard eraser block (4) is also provided with a handle (1) and a power supply device, the handle (1) is provided with a switch (2), the power supply device is electrically connected with the switch (2), the spraying mechanism (6), the dust collection mechanism (3) and the motor (8) respectively.

2. A dust-free eraser as claimed in claim 1, wherein said switch (2) is a touch switch, and the switch (2) is provided on a face of said handle (1) opposite to said eraser block (4).

3. A dust-free blackboard eraser as claimed in claim 2, wherein there are a plurality of said switches (2), and a plurality of said switches (2) are respectively arranged in sequence along the length direction of said handle (1), each of said switches (2) being connected in parallel to the circuit.

4. The dust-free blackboard eraser as claimed in claim 1, wherein the eraser block (4) is provided with a ring of connected annular grooves along the circumferential direction of the notch of the groove (11), the spraying mechanism (6) is arranged at the bottom of the annular groove, and the spray head of the spraying mechanism (6) and the notch of the annular groove are in the same horizontal plane.

5. A dust-free blackboard eraser according to claim 1, wherein there is a visible screen (7) between the sponge (14) and the through opening (12).

6. A dust-free blackboard eraser, as claimed in claim 1, wherein the water pipe is arranged against the wall of the recess (11).