CN211710496U

CN211710496U - Dust-absorbing blackboard eraser

Info

Publication number: CN211710496U
Application number: CN201821439562.6U
Authority: CN
Inventors: 李函默
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-04
Filing date: 2018-09-04
Publication date: 2020-10-20
Anticipated expiration: 2028-09-04

Abstract

The utility model discloses a dust-absorbing blackboard eraser, which comprises a shell, wherein a mounting plate is fixedly arranged at the lower end of the shell, a plurality of clamping grooves are arranged at the lower end of the mounting plate, a plurality of rows of through holes are uniformly arranged on the mounting plate, the clamping grooves and the through holes are arranged at intervals, a brush is arranged in the clamping grooves and clamped in the clamping grooves, a cavity and a flow guide cavity are arranged in the shell, the cavity is communicated with the through holes, the flow guide cavity is arranged at the upper end of the cavity, the upper end of the flow guide cavity is communicated with one end of a connecting pipe, the other end of the connecting pipe is communicated with a collecting cavity, a collecting box is arranged at the lower end in the collecting cavity, the other end of the collecting cavity is connected with an air outlet pipe, a separation net is arranged at the joint of the air outlet pipe and the collecting cavity, a miniature exhaust fan is arranged, the inside of casing is installed the battery.

Description

Dust-absorbing blackboard eraser

Technical Field

The utility model relates to a teaching articles for use technical field, in particular to dust absorption blackboard eraser.

Background

The blackboard eraser is a teaching aid, and no matter in a traditional teaching mode or a rapid optimization modern multimedia teaching mode, blackboard writing teaching is carried out by utilizing a blackboard, and the blackboard eraser is an important carrier for teachers to carry out key explanation, difficult point analysis, logic combing and the like on teaching contents. However, the blackboard writing teaching process needs to be erased and written repeatedly, the traditional blackboard eraser can only erase writing and can not absorb dust scattered in the air, and chalk dust scatters around along with wind and dust after the blackboard eraser is erased, so that the blackboard eraser is not easy to clean and easy to breathe by teachers and students to enter bodies, and great harm is caused to the health of the teachers and students.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a dust absorption blackboard eraser can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a dust-absorbing blackboard eraser comprises a shell, wherein a mounting plate is fixedly mounted at the lower end of the shell, a plurality of clamping grooves are formed in the lower end of the mounting plate, a plurality of rows of through holes are uniformly formed in the mounting plate, the clamping grooves and the through holes are arranged at intervals, a brush is mounted in each clamping groove and clamped in each clamping groove, a cavity and a flow guide cavity are formed in the shell, the cavity is communicated with the through holes, the flow guide cavity is formed in the upper end of the cavity, the upper end of the flow guide cavity is communicated with one end of a connecting pipe, the other end of the connecting pipe is communicated with a collecting cavity, a collecting box is mounted at the lower end of the inner part of the collecting cavity, the other end of the collecting cavity is connected with an air outlet pipe, a separation net is mounted at the joint of the air outlet pipe and the collecting cavity, a miniature exhaust, the inside of casing is installed the battery.

Preferably, through wire electric connection between battery, miniature air exhauster control switch, the miniature air exhauster, the battery provides the electric energy for the work of miniature air exhauster, and miniature air exhauster control switch controls opening and closing of miniature air exhauster.

Preferably, the collection box is connected with the collection cavity in a sliding mode through the sliding block, so that the collection box in the collection cavity can be conveniently drawn out, and chalk dust in the collection box can be cleaned.

Preferably, charging socket is installed to a side of casing, charging socket and battery pass through wire electric connection, just charging socket department articulates there is the protective cover, is convenient for charge for the battery.

Preferably, the diversion cavity is funnel-shaped, so that dust in the cavity can enter the connecting pipe from the diversion cavity.

Preferably, the shell and the mounting plate are made of PVC plastic materials, so that the shell is firm, durable, light in weight and not easy to damage.

Compared with the prior art, the utility model discloses following beneficial effect has: through set up a plurality of through-hole on the mounting panel, through setting up the cavity, the water conservancy diversion chamber, the connecting pipe, collect the chamber, collect the box, a separation plate, the outlet duct, miniature air exhauster, the chalk dust that miniature air exhauster cleared up the brush passes through the through-hole, the cavity, the water conservancy diversion chamber, the collection chamber is taken into to the connecting pipe, the chalk dust is by the separation net separation of the junction in outlet duct and collection chamber, the chalk dust drops in the collection box of collection intracavity, the air passes through the outlet duct and discharges, high durability and convenient use, better environmental protection effect has, prevent that the chalk dust from flying upward and causing the pollution, can effectively protect teachers and students's healthy.

Drawings

Fig. 1 is a schematic plan view of a dust-absorbing blackboard eraser of the present invention;

fig. 2 is a schematic view of the whole structure of the dust-absorbing blackboard eraser of the present invention;

fig. 3 is a schematic circuit diagram of a dust-absorbing blackboard eraser of the present invention;

fig. 4 is a schematic plan view of a mounting plate of the dust-absorbing blackboard eraser of the present invention;

in the figure: 1. a housing; 2. mounting a plate; 3. a card slot; 4. a through hole; 5. a brush; 6. a cavity; 7. a flow guide cavity; 8. a connecting pipe; 9. a collection chamber; 10. a collection box; 11. an air outlet pipe; 12. separating the net; 13. a miniature exhaust fan; 14. a micro exhaust fan control switch; 15. and (4) a storage battery.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a dust-absorbing blackboard eraser comprises a casing 1, a mounting plate 2 is fixedly mounted at the lower end of the casing 1, a plurality of slots 3 are formed at the lower end of the mounting plate 2, a plurality of rows of through holes 4 are uniformly formed on the mounting plate 2, the slots 3 and the through holes 4 are arranged at intervals, a brush 5 is mounted in each slot 3, the brush 5 is clamped in each slot 3, a cavity 6 and a flow guide cavity 7 are formed in the casing 1, the cavity 6 is communicated with the through holes 4, the flow guide cavity 7 is arranged at the upper end of the cavity 6, the upper end of the flow guide cavity 7 is communicated with one end of a connecting pipe 8, the other end of the connecting pipe 8 is communicated with a collecting cavity 9, a collecting box 10 is mounted at the lower end of the inner part of the collecting cavity 9, an air outlet pipe 11 is connected to the other end of the collecting cavity 9, and the upper end of the shell 1 is provided with a miniature air draft fan control switch 14, and the inside of the shell 1 is provided with a storage battery 15.

The storage battery 15, the miniature exhaust fan control switch 14 and the miniature exhaust fan 13 are electrically connected through a lead, the storage battery 15 provides electric energy for the work of the miniature exhaust fan 13, and the miniature exhaust fan control switch 14 controls the opening and closing of a circuit so as to control the opening and closing of the miniature exhaust fan 13; the collecting box 10 is connected with the collecting cavity 9 in a sliding way through a sliding block, so that the collecting box 10 in the collecting cavity 9 can be conveniently drawn out, and chalk dust in the collecting box 10 can be cleaned; a charging socket is arranged at one side end of the shell 1, the charging socket is electrically connected with the storage battery 15 through a wire, and a protective cover is hinged to the charging socket so as to conveniently charge the storage battery 15; the flow guide cavity 7 is funnel-shaped, so that dust in the cavity 6 can enter the connecting pipe 8 from the flow guide cavity 7 conveniently; the shell 1 and the mounting plate 2 are made of PVC plastic materials, and are firm, durable, light in weight, not easy to damage and long in service life.

It should be noted that, the utility model relates to a dust absorption blackboard eraser, when using, a plurality of draw-in grooves 3 have been seted up to the lower extreme of mounting panel 2, the joint is fixed with brush 5 in the draw-in groove 3, and evenly seted up a plurality of rows of through-holes 4 on the mounting panel 2, draw-in groove 3 and the interval of through-hole 4 set up, through-hole 4 and cavity 6 are linked together, the upper end of cavity 6 is provided with water conservancy diversion chamber 7, water conservancy diversion chamber 7 is linked together through connecting pipe 8 and collection chamber 9, collect the inside lower extreme of chamber 9 and install collection box 10, collection box 10 passes through slider and collection chamber 9 sliding connection, the other end of collecting chamber 9 is connected with outlet duct 11, outlet duct 11 and the junction of collecting chamber 9 install at a distance from net 12, install miniature air exhauster 13 in the outlet duct 11, miniature air exhauster control switch 14 is installed to the upper end of casing 1, Through wire electric connection between miniature air exhauster 13, when using the dust absorption blackboard eraser, the chalk dust on the blackboard is wiped to brush 5, press miniature air exhauster control switch 14 on the casing 1 simultaneously, start miniature air exhauster 13, miniature air exhauster 13 passes through-hole 4 with the chalk dust that brush 5 cleared up, cavity 6, water conservancy diversion chamber 7, connecting pipe 8 is taken out and is collected chamber 9, the chalk dust is by outlet duct 11 and the separation net 12 separation of the junction of collecting chamber 9, the chalk dust falls in collecting the collection box 10 of collecting chamber 9, the air passes through outlet duct 11 and discharges, high durability and convenient use, has better environmental protection effect, prevent that the chalk dust from flying upward and causing the pollution, can effectively protect teachers and students's healthy.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A dust-absorbing blackboard eraser comprises a shell (1) and is characterized in that a mounting plate (2) is fixedly mounted at the lower end of the shell (1), a plurality of clamping grooves (3) are formed in the lower end of the mounting plate (2), a plurality of rows of through holes (4) are uniformly formed in the mounting plate (2), the clamping grooves (3) and the through holes (4) are arranged at intervals, a brush (5) is mounted in each clamping groove (3), the brush (5) is clamped in each clamping groove (3), a cavity (6) and a flow guide cavity (7) are formed in the shell (1), the cavity (6) is communicated with the through holes (4), the flow guide cavity (7) is arranged at the upper end of the cavity (6), the upper end of the flow guide cavity (7) is communicated with one end of a connecting pipe (8), and the other end of the connecting pipe (8) is communicated with a collecting cavity (9), collect the inside lower extreme in chamber (9) and install and collect box (10), just the other end of collecting chamber (9) is connected with outlet duct (11), outlet duct (11) and the junction of collecting chamber (9) are installed and are separated net (12), just install miniature air exhauster (13) in outlet duct (11), just miniature air exhauster control switch (14) are installed to the upper end of casing (1), the internally mounted of casing (1) has battery (15).

2. A dust-absorbing blackboard eraser according to claim 1, wherein: the storage battery (15), the miniature air exhauster control switch (14) and the miniature air exhauster (13) are electrically connected through a conducting wire.

3. A dust-absorbing blackboard eraser according to claim 1, wherein: the collecting box (10) is connected with the collecting cavity (9) in a sliding way through a sliding block.

4. A dust-absorbing blackboard eraser according to claim 1, wherein: charging socket is installed to a side of casing (1), charging socket and battery (15) pass through wire electric connection, just charging socket department articulates there is the protective cover.

5. A dust-absorbing blackboard eraser according to claim 1, wherein: the flow guide cavity (7) is funnel-shaped.

6. A dust-absorbing blackboard eraser according to claim 1, wherein: the shell (1) and the mounting plate (2) are made of PVC plastic materials.