CN109203798B

CN109203798B - Blackboard brush

Info

Publication number: CN109203798B
Application number: CN201811273456.XA
Authority: CN
Inventors: 屈福康; 吴居奇; 黎彩容; 刘利; 张彬; 陈伟全
Original assignee: Huali College Guangdong University Of Technology
Current assignee: Huali College Guangdong University Of Technology
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2022-11-25
Anticipated expiration: 2038-10-30
Also published as: CN109203798A

Abstract

The invention provides a blackboard brush, wherein a power supply and a switch are arranged on a device body, a first accommodating cavity and a second accommodating cavity are arranged on the device body, the second accommodating cavity is positioned below the first accommodating cavity, the first accommodating cavity is provided with a first cavity opening, a brush body is arranged at the first cavity opening, the first end of the brush body is movably connected to the device body, the second end of the brush body is rotatably connected to the device body, the second accommodating cavity is provided with a second cavity opening at the same side of the first cavity opening, the second cavity opening is positioned below the first cavity opening, a suction funnel is arranged in the second accommodating cavity, the feed end of the suction funnel is positioned at the second cavity opening, the feed end of the suction funnel is obliquely arranged upwards, the second accommodating cavity is provided with a take-out opening, dust can be taken out and placed in the second accommodating cavity, the dust accommodating box is provided with a dust inlet, the bottom end of the suction funnel is connected to the dust inlet, a dust collection fan is arranged at the bottom end of the suction funnel, the dust collection fan is electrically connected with the power supply, dust can be timely and effectively collected, and the dust collection effect is good.

Description

Blackboard brush

Technical Field

The invention relates to the field of teaching aids, in particular to a blackboard brush.

Background

The blackboard, chalk and blackboard brush are common teaching tools, and as well known, the 'chalk powder' generated by the chalk has great influence on human bodies, particularly lung respiratory systems. And when the air is dry, the 'chalk powder' flies seriously, and the physical health of teachers and students in front row of teachers close to the blackboard is greatly damaged.

The existing dust-absorbing blackboard brush can also play a role in absorbing dust, but has the problems of large volume, inconvenient use, poor dust collecting capability, incapability of solving the problem of residual dust on the brush body and the like.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the blackboard eraser with good effect and integrity.

In order to solve the technical problem, the blackboard brush provided by the invention comprises a device body, a brush body, a dust suction fan, a suction funnel, a dust storage box, a power supply and a switch, wherein the power supply and the switch are arranged on the device body, a first accommodating cavity and a second accommodating cavity are arranged on the device body, the second accommodating cavity is positioned below the first accommodating cavity, the first accommodating cavity is provided with a first cavity opening, the brush body is arranged at the first cavity opening, the first end of the brush body is movably connected to the device body, the second end of the brush body is rotatably connected to the device body, the second accommodating cavity is provided with a second cavity opening at the same side of the first cavity opening, the second cavity opening is positioned below the first cavity opening, the suction funnel is arranged in the second accommodating cavity, the feed end of the suction funnel is positioned at the second cavity opening, the feed end of the suction funnel is obliquely upwards arranged, the second accommodating cavity is provided with a take-out opening, dust can be taken out and placed in the second accommodating cavity, the dust inlet of the dust suction funnel is provided with a dust inlet, the dust suction funnel, the power supply of the suction fan is electrically connected to the bottom end of the dust suction funnel, and the dust suction funnel is electrically connected to the bottom end of the dust suction funnel.

Further, the device body is equipped with and shakes off the mechanism, the first end of the brush body is passed through shake off the mechanism and remove, shake off the mechanism and include button, first carriage release lever, second carriage release lever, head rod and reset spring, the button is installed on the device body and be located with one side that the first accent is relative, the head rod rotationally connects on the device body and the junction is located the middle part of head rod, the first end of first carriage release lever with the first end of second carriage release lever is connected respectively at the both ends of head rod, the second end of first carriage release lever with button swing joint, the second carriage release lever with the first end of the brush body is connected, reset spring be located the lateral wall in first holding chamber with between the brush body.

Further, a handle is arranged on the device body, the handle is located on one side opposite to the first cavity opening, a third containing cavity is arranged on the handle, a moving hole is formed in the joint of the handle and the first containing cavity and is communicated with the first containing cavity and the third containing cavity, a third cavity opening is formed in the third containing cavity, the button is located at the third cavity opening, the first moving rod and the first connecting rod are located in the third containing cavity, the second moving rod penetrates through the moving hole and is connected with the brush body, the button is movably connected with the first moving rod through a pressing mechanism, the pressing mechanism comprises a second connecting rod and a moving block, the second connecting rod and the moving block are located in the third containing cavity, the second connecting rod is rotatably connected in the third containing cavity, the joint of the second connecting rod and the second connecting rod is located between the first end and the second end of the second connecting rod, the first end of the second connecting rod is connected to the button, and the moving block is movably connected between the third containing cavity and the moving block.

Furthermore, the dust storage box is provided with an air outlet, and a dust blocking piece is arranged at the air outlet.

Optionally, the dust blocking member is a sponge block.

Further, the dust receiver is transparent box body, second holding chamber is equipped with the viewing aperture, the viewing aperture with the dust receiver is relative, viewing aperture department is equipped with transparent baffle.

Furthermore, a plurality of straight grooves arranged in parallel are arranged on the brush body, and the straight grooves are perpendicular to the feeding end of the suction funnel.

Optionally, the dust absorption fan includes motor and impeller, the bottom of inhaling the funnel is equipped with the connecting hole, the impeller is located inhale in the funnel, the motor is located inhale outside the funnel, the output shaft of motor passes through the connecting hole stretches into inhale in the funnel, the impeller is connected on the output shaft of motor.

The invention has the beneficial effects that:

1. according to the invention, the suction funnel is arranged below the brush body, when the brush body cleans a blackboard, dust can enter the suction funnel under the action of gravity and a dust suction fan so as to reach the dust storage box, and dust collection and storage are realized at one time.

2. According to the invention, the first moving rod is moved through the button, the first connecting rod is driven to rotate, so that the second moving rod is moved, then the first end of the brush body is moved, the button is released, and the brush body returns to the original position under the action of the return spring, so that the shaking of the brush body is realized, the structure is simple, and the operation is convenient. The novel multifunctional pen is further provided with the lifting handle, and the button is arranged on the lifting handle, so that the novel multifunctional pen is more convenient to use.

3. The dust storage box is arranged at the air outlet, so that dust can enter the dust storage box, and the dust blocking piece can prevent the dust in the dust storage box from floating away from the air outlet. In addition, the dust storage box is a transparent box body, and the observation port is provided with the transparent baffle, so that the dust storage box is convenient to observe and can be cleaned in time. In addition, the brush body is provided with the straight groove, so that dust can fall down conveniently, and the dust collection effect is further improved.

Drawings

FIG. 1 is a schematic view of a blackboard brush of an embodiment.

FIG. 2 is a schematic cross-sectional view of a blackboard brush of an embodiment.

FIG. 3 is an exploded view of the blackboard eraser of the embodiment.

Wherein, 1, the device body; 101. a first accommodating cavity; 1011. a first orifice; 1012. moving the hole; 102. a second accommodating cavity; 1021. a second port; 1022. a take-out port; 1023. a viewing port; 2. a brush body; 201. straight grooves; 3. a dust collection fan; 301. a motor; 302. an impeller; 4. a suction funnel; 5. a dust storage box; 501. an air outlet; 6. a power source; 7. a switch; 8. a button; 9. a first movable bar; 10. a second movable bar; 11. a first connecting rod; 12. a return spring; 13. a handle; 1301. a third accommodating cavity; 1302. a third port; 14. a second connecting rod; 15. a moving block; 16. a sponge block; 17. a transparent baffle.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Further, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the blackboard brush of the present embodiment includes a device body 1, a brush body 2, a dust suction fan 3, a dust suction funnel 4, a dust storage box 5, a power supply 6 and a switch 7, the power supply 6 and the switch 7 are disposed on the device body 1, the device body 1 is provided with a first storage cavity 101 and a second storage cavity 102, the second storage cavity 102 is located below the first storage cavity 101, the first storage cavity 101 is provided with a first cavity port 1011, the brush body 2 is disposed at the first cavity port 1011, the first end of the brush body 2 is movably connected to the device body 1, the second end of the brush body 2 is rotatably connected to the device body 1, the second storage cavity 102 is provided with a second cavity port 1021 at the same side as the first cavity port 1011, the second cavity port 1021 is located below the first cavity port, the dust suction funnel 4 is disposed in the second storage cavity 1021, the feed end of the dust suction funnel 4 is located at the second cavity port 1021, the feed end of the dust suction funnel 4 is obliquely disposed upward, the second storage box 102 is provided with a take-out port 1022, the dust suction fan 5 is disposed in the second storage cavity 2011, the dust suction funnel 102, the dust suction fan 5 is electrically connected to the dust suction funnel 3, the dust suction funnel 4, the dust suction funnel 3 is electrically connected to the dust suction fan bottom end of the dust suction funnel, and the dust suction funnel 3, and the dust suction funnel 4 is electrically connected to the dust suction funnel, and the dust suction fan 3. This embodiment is through the below setting at the brush body 2 and inhales funnel 4, when the clean blackboard of the brush body 2, thereby the dust will get into under gravity and dust absorption fan's effect and inhale funnel 4 and reach dust receiver 5 in, once only realize the dust absorption and accomodate, the feed end of inhaling funnel 4 sets up in the slant, can furthest must inhale the dust, in addition, the one end of the brush body 2 is portable, the other end is rotationally connected on device body 1, the one end of the removal brush body 2 can shake brush body 2, the dust on the brush body 2 is collected through inhaling funnel 4, reduce brush body 2 and stay the dirt, and prevent that the remaining dust on the brush body 2 from scattering everywhere, the brush body 2 of this embodiment, inhale funnel 4, dust absorption fan 3 all is located device body 1's holding intracavity, and is convenient for dismounting, the wholeness is good.

In this embodiment, the device body 1 is provided with a shake-off mechanism, the first end of the brush body 2 moves through the shake-off mechanism, the shake-off mechanism includes a button 8, a first moving rod 9, a second moving rod 10, a first connecting rod 11 and a return spring 12, the button 8 is installed on the device body 1 and located on the side opposite to the first cavity 1011, the first connecting rod 11 is rotatably connected to the device body 1, the joint is located in the middle of the first connecting rod 11, the first end of the first moving rod 9 and the first end of the second moving rod 10 are respectively connected to the two ends of the first connecting rod 11, the second end of the first moving rod 9 is movably connected to the button 8, the second moving rod 10 is connected to the first end of the brush body 2, the return spring 12 is located between the side wall of the first accommodating cavity 101 and the brush body 2, the side wall of the first accommodating cavity 101 and the brush body 2 of this embodiment are respectively provided with a convex column, and the two ends of the return spring 12 are respectively sleeved on the convex columns.

A handle 13 is arranged on the device body 1 of the embodiment, the handle 13 is located on the side opposite to the first cavity 1011, a third containing cavity 1301 is arranged on the handle 13, a moving hole 1012 is arranged at the joint of the handle 13 and the first containing cavity 101, the moving hole 1012 communicates the first containing cavity 101 and the third containing cavity 1301, the third containing cavity 1301 is provided with a third cavity 1302, the button 8 is located at the third cavity 1302, the first moving rod 9 and the first connecting rod 11 are located in the third containing cavity 1301, the button 8 and the first moving rod 9 are movably connected through a pressing mechanism, the pressing mechanism comprises a second connecting rod 14 and a moving block 15, the second connecting rod 14 and the moving block 15 are located in the third containing cavity 1301, the second connecting rod 14 is rotatably connected in the third containing cavity 1301, the joint is located between the first end and the second end of the second connecting rod 14, the second end of the second connecting rod 14 is connected to the second end of the first moving rod 9, the first end of the second connecting rod 14 is connected to the button 8, and the moving block 15 is movably connected in the third containing cavity 1301, and the moving block 15 is located between the second connecting rod 14 and the second connecting rod 8. Press the button 8, the button 8 promotes the movable block 15 and rotates, the movable block 15 and the button 8 promote the rotation of second connecting rod 14, second connecting rod 14 promotes first carriage release 9 and removes, first carriage release 9 drives the rotation of first connecting rod 11, thereby it removes to drive the second carriage release 10, make the first end of the brush body 2 remove, and make the second end of the brush body 2 rotate, release the button 8, the brush body 2 resets under reset spring 12's effect, realize the shake of the brush body 2, moreover, the steam generator is simple in structure, high reliability, and convenient operation.

In addition, in this embodiment, dust receiver 5 is equipped with exhaust vent 501, and exhaust vent 501 department is equipped with the fender dirt spare, and the fender dirt spare of this embodiment is sponge piece 16, and air outlet 501 can guide the air current direction, is favorable to the dust to get into dust receiver 5, and the fender dirt spare can prevent that the dust of dust receiver 5 from wafting from air outlet 501. In addition, dust receiver 5 is transparent box body, and second holding chamber 102 is equipped with viewing aperture 1023, and viewing aperture 1023 is relative with dust receiver 5, and viewing aperture 1023 department is equipped with transparent baffle 17, conveniently observes, in time clears up dust receiver 5. The brush body 2 of this embodiment is provided with a plurality of parallel arrangement's straight groove 201, and the feed end of funnel 4 is inhaled to straight groove 201 perpendicular to, is favorable to the dust to drop down, further improves dust collection effect.

The dust absorption fan 3 of this embodiment includes motor 301 and impeller 302, and the bottom of inhaling funnel 4 is equipped with the connecting hole, and impeller 302 is located and inhales funnel 4, and motor 301 is located and inhales outside funnel 4, and motor 301's output shaft stretches into in inhaling funnel 4 through the connecting hole, and impeller 302 connects on motor 301's output shaft. In addition, the power supply of the embodiment adopts a battery, and can be replaced.

To sum up, this embodiment is through the below setting at the brush body 2 and inhales funnel 4, when the clean blackboard of brush body 2, thereby the dust will get into under gravity and dust absorption fan's effect and inhale funnel 4 and reach in dust receiver 5, once only realize the dust absorption and accomodate, the feed end of inhaling funnel 4 sets up upwards to one side, can furthest must inhale the dust, in addition, the one end of brush body 2 is portable, the other end is rotationally connected on device body 1, the one end of removing brush body 2 can shake brush body 2, collect dust on the brush body 2 through inhaling funnel 4, reduce brush body 2 and keep the dirt, and prevent that the remaining dust on the brush body 2 from wafting everywhere, the brush body 2 of this embodiment, inhale funnel 4, dust absorption fan 3 all is located the holding intracavity of device body 1, and is convenient for dismounting, the wholeness is good.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A blackboard brush is characterized by comprising a device body, a brush body, a dust suction fan, a suction funnel, a dust storage box, a power supply and a switch, wherein the power supply and the switch are arranged on the device body, a first accommodating cavity and a second accommodating cavity are arranged on the device body, the second accommodating cavity is positioned below the first accommodating cavity, the first accommodating cavity is provided with a first cavity opening, the brush body is arranged at the first cavity opening, the first end of the brush body is movably connected to the device body, the second end of the brush body is rotatably connected to the device body, the second accommodating cavity is provided with a second cavity opening at the same side of the first cavity opening, the second cavity opening is positioned below the first cavity opening, the suction funnel is arranged in the second accommodating cavity, the feed end of the suction funnel is positioned at the second cavity opening, the feed end of the suction funnel is obliquely arranged upwards, the second accommodating cavity is provided with a take-out opening, dust can be placed in the second accommodating cavity in a take-out manner, the dust suction funnel is provided with a dust inlet, the bottom end of the suction funnel is connected to the dust suction fan, and the dust suction switch is electrically connected to the bottom end of the dust suction funnel; the device body is provided with a shake-off mechanism, the first end of the brush body moves through the shake-off mechanism, the shake-off mechanism comprises a button, a first moving rod, a second moving rod, a first connecting rod and a return spring, the button is installed on the device body and is located on one side opposite to the first cavity opening, the first connecting rod is rotatably connected to the device body, the connecting position of the first connecting rod is located in the middle of the first connecting rod, the first end of the first moving rod and the first end of the second moving rod are respectively connected to two ends of the first connecting rod, the second end of the first moving rod is movably connected with the button, the second moving rod is connected with the first end of the brush body, and the return spring is located between the side wall of the first accommodating cavity and the brush body; the device body is provided with a handle, the handle is located on one side opposite to the first cavity opening, a third containing cavity is arranged on the handle, a moving hole is formed in the joint of the handle and the first containing cavity and communicated with the first containing cavity and the third containing cavity, a third cavity opening is formed in the third containing cavity, the button is located at the third cavity opening, the first moving rod and the first connecting rod are located in the third containing cavity, the second moving rod penetrates through the moving hole and is connected with the brush body, the button is movably connected with the first moving rod through a pressing mechanism, the pressing mechanism comprises a second connecting rod and a moving block, the second connecting rod and the moving block are located in the third containing cavity, the second connecting rod is rotatably connected in the third containing cavity, the joint of the second connecting rod is located between the first end and the second end of the second connecting rod, the second end of the second connecting rod is connected with the second end of the first moving rod, the first end of the second connecting rod is connected to the button, and the moving block is movably connected between the third containing cavity and the second connecting rod and the second end of the moving block.

2. The blackboard brush according to claim 1, wherein the dust storage box is provided with an air outlet, and a dust blocking member is provided at the air outlet.

3. The blackboard brush of claim 2, wherein the dust guard is a sponge block.

4. The blackboard brush of claim 1, wherein the dust storage box is a transparent box, the second accommodating cavity is provided with a viewing port opposite to the dust storage box, and the viewing port is provided with a transparent baffle.

5. The blackboard brush of claim 1, wherein the brush body is provided with a plurality of parallel straight grooves, and the straight grooves are perpendicular to the feeding end of the suction funnel.

6. The blackboard brush according to claim 1, wherein the dust suction fan includes a motor and an impeller, a connecting hole is formed at the bottom end of the suction funnel, the impeller is located in the suction funnel, the motor is located outside the suction funnel, an output shaft of the motor extends into the suction funnel through the connecting hole, and the impeller is connected to the output shaft of the motor.