CN213831152U

CN213831152U - Blackboard eraser convenient to use

Info

Publication number: CN213831152U
Application number: CN202022353776.5U
Authority: CN
Inventors: 仲景新
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-07-30
Anticipated expiration: 2030-10-21

Abstract

The utility model relates to the technical field of office supplies, in particular to a convenient blackboard eraser, which comprises a shell, wherein the upper surface of the shell is provided with a handle, the lower surface of the handle is fixedly connected with the upper surface of the shell, the left side and the right side of the shell are respectively provided with a plurality of air holes which are uniformly distributed, the upper surface of the shell is close to the left side, two symmetrical second openings are arranged at the two sides of the handle, and each second opening is provided with a knob; this blackboard eraser convenient to use is through being equipped with shell, dust removal cloth, dust removal filter screen, motor, power etc. presses the switch when using, and the mains operated, and the motor begins work, drives the flabellum operation, can adsorb the dust when wiping the blackboard, can not cause the raise dust, and the USB interface still can charge for the power simultaneously, and the device has solved traditional blackboard eraser and has easily caused the bad problem of raise dust when wiping the blackboard, and rechargeable power also makes this blackboard eraser life longer simultaneously.

Description

Blackboard eraser convenient to use

Technical Field

The utility model relates to an office supplies technical field specifically is a blackboard sassafras convenient to use.

Background

The blackboard is an important tool which is indispensable in classroom teaching at present, and the blackboard eraser is one item matched with the blackboard eraser, but the known blackboard eraser generates a lot of fine dust after chalk is erased, and the fine dust is scattered in the air, so that the respiratory tract health of surrounding teachers and students is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blackboard sassafras convenient to use to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a blackboard eraser convenient to use comprises a shell, wherein a handle is arranged on the upper surface of the shell, the lower surface of the handle is fixedly connected with the upper surface of the shell, a plurality of air holes which are uniformly distributed are formed in the left side of the shell, symmetrical second openings are formed in the positions, close to the left side, of the upper surface of the shell, two sides of the handle are provided with a knob, the second openings are provided with knobs, the shell is of a hollow structure with an opening in the lower surface, a partition plate is arranged in the shell, close to the upper portion of the shell, a motor is arranged below the partition plate, a power supply is arranged on the upper surface of the partition plate, a switch is arranged on the surface wall of the shell at the upper end of the power supply, a USB interface is arranged on the front side of the power supply, a first opening is formed in the position, at the USB interface, the USB interface penetrates through the first opening to be communicated with the outside, and an output shaft of the motor penetrates through the partition plate to be fixedly connected with fan blades below the partition plate, the inside left side of shell is equipped with first filter screen and second filter screen, first filter screen with a plurality of tiny apertures have all been seted up on the second filter screen, first filter screen with second filter screen below is equipped with the dust removal filter screen, the dust removal filter screen below is equipped with the dust removal sponge, the dust removal sponge below is equipped with the dust removal cloth.

Preferably, the second opening is internally provided with threads, the knob is connected with the second opening through the threads, and the bottom end of the knob can extend to the upper surface of the dust removal filter screen when not screwed down.

Preferably, the surfaces of the left side and the right side of the partition board are fixedly connected with the inner surface wall of the shell.

Preferably, the motor is fixedly connected with the partition plate through a fixing column, the power supply is fixedly connected with the partition plate, and the switch, the power supply and the motor are electrically connected.

Preferably, the dust removal filter screen passes through first filter screen with the second filter screen with baffle fixed connection and its lower surface are in shell lower surface opening part, the dust removal sponge with the dust removal filter screen passes through glue and bonds, the cloth parcel that removes dust is in the dust removal sponge outside with shell fixed connection.

Preferably, a plurality of fine small holes are formed in the dust removal filter screen, and the dust removal cloth is of a pure cotton structure.

Compared with the prior art, the beneficial effects of the utility model are that: this blackboard eraser convenient to use is through being equipped with shell, dust removal cloth, dust removal filter screen, motor, power etc. presses the switch when using, and the mains operated, and the motor begins work, drives the flabellum operation, can adsorb the dust when wiping the blackboard, can not cause the raise dust, and the USB interface still can charge for the power simultaneously, and the device has solved traditional blackboard eraser and has easily caused the bad problem of raise dust when wiping the blackboard, and rechargeable power also makes this blackboard eraser life longer simultaneously.

Drawings

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

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

fig. 3 is a front view of the internal structure of the present invention;

fig. 4 is an oblique view of the internal structure of the present invention.

In the figure: 1. a housing; 2. air holes are formed; 3. a handle; 4. a knob; 5. a partition plate; 6. a motor; 7. a power source; 8. a USB interface; 9. a first opening; 11. a first filter screen; 12. a second filter screen; 13. a fan blade; 14. dedusting cloth; 15. a dust removal sponge; 16. a dust removal filter screen; 17. and (4) switching.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution:

a convenient blackboard eraser comprises a shell 1, wherein a handle 3 is arranged on the upper surface of the shell 1, the lower surface of the handle 3 is fixedly connected with the upper surface of the shell 1, the handle 3 is arranged to ensure that two hands are not easy to be stained with dust on two sides of the blackboard eraser, a plurality of air holes 2 which are uniformly distributed are formed in the left side of the shell 1, symmetrical second openings are formed in the positions, close to two sides of the handle 3 on the left side, on the upper surface of the shell 1, a knob 4 is arranged on each second opening, the shell 1 is of a hollow structure with an opening in the lower surface, a partition plate 5 is arranged in the shell 1 close to the upper part, a motor 6 is arranged below the partition plate 5 close to the left side, a power supply 7 is arranged on the right side of the upper surface of the partition plate 5, the partition plate 5 is arranged to ensure that components, such as the power supply 7, above the power supply 7 and the like are not stained with dust, so that the service life is influenced, a switch 17 is arranged on the surface wall of the shell 1 on the upper end of the power supply 7, and the switch 17 controls the on-off circuit of the motor 6 and the power supply 7, the front side of a power supply 7 is provided with a USB interface 8, a first opening 9 is arranged at the shell 1 at the USB interface 8, the USB interface 8 passes through the first opening 9 to be communicated with the outside, the USB interface is arranged to ensure that the power supply 7 can be charged to ensure that the service life of the blackboard eraser is longer, the service life of the power supply 7 is longer, an output shaft of a motor 6 passes through a partition plate 5 to be fixedly connected with a fan blade 13 below the partition plate 5, the left side inside the shell 1 is provided with a first filter screen 11 and a second filter screen 12, the first filter screen 11 and the second filter screen 12 are both provided with a plurality of fine pores, a dust removal filter screen 16 is arranged below the first filter screen 11 and the second filter screen 12, a dust removal sponge 15 is arranged below the dust removal filter screen 16, a dust removal cloth 14 is arranged below the dust removal sponge 15, the dust removal sponge 15 filters dust for the first time, the first filter screen 11 filters dust for the second time, the second filter screen 12 filters dust for the third time, so that the dust blown out from the gas at the left side and the right side of the shell 1 does not contain dust, no harm to human.

In this embodiment, the inside screw thread that is equipped with of second opening, knob 4 and second opening pass through threaded connection, and 4 bottoms of knob can extend to dust removal filter screen 16 upper surface when not screwing up, can push out the dust removal filter screen of below to the opening part of shell 1 lower surface through knob 4 to the dust removal device of blackboard eraser below is conveniently changed, washd.

Besides, the left and right side surfaces of the partition board 5 are fixedly connected with the inner surface wall of the shell 1.

Further, the motor 6 is fixedly connected with the partition plate 5 through bolts, the power supply 7 is fixedly connected with the partition plate 5, and the switch 17, the power supply 7 and the motor 6 are electrically connected.

Specifically, the dust removal filter screen 16 is fixedly connected with the partition board 5 through the first filter screen 11 and the second filter screen 12, the lower surface of the dust removal filter screen is located at an opening of the lower surface of the shell 1, the dust removal sponge 15 is bonded with the dust removal filter screen 16 through glue, and the dust removal cloth 14 is wrapped on the outer side of the dust removal sponge 15 and is fixedly connected with the shell 1.

It is worth noting that the dust removing filter screen 16 is provided with a plurality of small holes, the dust removing cloth 14 is of a pure cotton structure, the blackboard cleaned by the pure cotton is cleaner, and dust is not easy to fly.

It should be noted that the present invention relates to circuits, electronic components and modules, and is well within the skill of those in the art, and is fully within the scope of the present invention as embodied and broadly described herein.

When the convenient blackboard eraser is used, the switch 17 is pressed, the motor 6 is electrified to drive the fan blades 13 below to rotate, the blackboard is erased through the blackboard eraser, while the blackboard is wiped, the dust removing cloth 14 can perform a first step of cleaning dust on the blackboard, and during the cleaning process, raised dust is possibly generated, but the raised dust is sucked into the blackboard eraser under the action of suction force generated by the rotation of the fan blades 13, the raised dust is filtered through the first pass of the dust removal filter screen 16, the raised dust reaching the interior of the shell 1 below the partition plate 5 is reduced, after being filtered by the first and

second sieves

11 and 12, the discharged gas is substantially free of dust, when the blackboard eraser is cleaned, the knob 4 is only required to be screwed, the dust storage device below the shell 1 is ejected out of the knob 4, and when the power supply 7 is not powered, the power supply 7 is charged through the USB interface 8.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A blackboard eraser convenient to use, comprising a casing (1), characterized in that: the upper surface of the shell (1) is provided with a handle (3), the lower surface of the handle (3) is fixedly connected with the upper surface of the shell (1), the left side of the shell (1) is provided with a plurality of uniformly distributed air holes (2), the upper surface of the shell (1) leans against the left side of the two sides of the handle (3) to be provided with symmetrical second openings, each second opening is provided with a knob (4), the shell (1) is of a hollow structure with an open lower surface, a partition plate (5) is arranged inside the shell (1) by leaning against the upper part, a motor (6) is arranged below the partition plate (5) by leaning against the left side, a power supply (7) is arranged on the upper surface of the partition plate (5) by leaning against the right side, a switch (17) is arranged on the surface wall of the shell (1) at the upper end of the power supply (7), a USB interface (8) is arranged on the front side of the power supply (7), a first opening (9) is arranged at the shell (1) at the USB interface (8), USB interface (8) pass first opening (9) and external intercommunication, the output shaft of motor (6) passes baffle (5) and flabellum (13) fixed connection of its below be equipped with first filter screen (11) and second filter screen (12) in the inside left side of shell (1), first filter screen (11) with a plurality of tiny apertures have all been seted up on second filter screen (12), first filter screen (11) said with second filter screen (12) below is equipped with dust removal filter screen (16), dust removal filter screen (16) below is equipped with dust removal sponge (15), dust removal sponge (15) below is equipped with dust removal cloth (14).

2. The convenient-to-use blackboard eraser according to claim 1, wherein: the inside screw thread that is equipped with of second opening, knob (4) with the second opening passes through threaded connection, knob (4) bottom can extend to when not screwing up dust removal filter screen (16) upper surface.

3. The convenient-to-use blackboard eraser according to claim 1, wherein: the surfaces of the left side and the right side of the partition board (5) are fixedly connected with the inner surface wall of the shell (1).

4. The convenient-to-use blackboard eraser according to claim 1, wherein: the motor (6) is fixedly connected with the partition plate (5) through a bolt, the power supply (7) is fixedly connected with the partition plate (5), and the switch (17), the power supply (7) and the motor (6) are electrically connected.

5. The convenient-to-use blackboard eraser according to claim 1, wherein: dust removal filter screen (16) pass through first filter screen (11) with second filter screen (12) with baffle (5) fixed connection and its lower surface are in shell (1) lower surface opening part, dust removal sponge (15) with dust removal filter screen (16) bond through glue, dust removal cloth (14) parcel is in the dust removal sponge (15) the outside with shell (1) fixed connection.

6. The convenient-to-use blackboard eraser according to claim 1, wherein: the dust removal filter screen (16) is provided with a plurality of fine small holes, and the dust removal cloth (14) is of a pure cotton structure.