CN113085422B

CN113085422B - Dust suction device for common blackboard

Info

Publication number: CN113085422B
Application number: CN202110485267.4A
Authority: CN
Inventors: 孙芳
Original assignee: Jiangsu Institute of Economic and Trade Technology
Current assignee: Jiangsu Institute of Economic and Trade Technology
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-04-15
Anticipated expiration: 2041-04-30
Also published as: CN113085422A

Abstract

The invention relates to the technical field of teaching auxiliary tools and discloses a dust collection device for a common blackboard. According to the dust collection head, when the dust collection head is used, the dust collection head is firstly sleeved on the wrist, then the barrel is inserted on the waist of trousers through the fixture block, when a chalk is used for writing work and the blackboard eraser is used, the included angle between the back of the hand of a user and the wrist is reduced, so that the back of the hand can be abutted against the protective sleeve, the pressure sensor senses the pressure, the exhaust fan is started through the pressure sensor, dust generated in the chalk using process and the blackboard eraser using process is pumped into the barrel, the dust amount in the air is effectively reduced, the dust amount sucked by a teacher is effectively reduced, and the body health of the teacher is facilitated.

Description

Dust suction device for common blackboard

Technical Field

The invention relates to the technical field of teaching auxiliary tools, in particular to a dust suction device for a common blackboard.

Background

At present, most schools continue to use chalk for teaching, and teachers need to use a blackboard eraser to erase a blackboard when removing writing written by chalk on the blackboard.

In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved: at present, teachers use chalks to write on and erase blackboards, a certain amount of dust is generated, and long-term absorption of the dust is an important factor influencing body health of teachers and students who stand in front of the blackboards to conduct teaching work.

Disclosure of Invention

The invention aims to provide a dust suction device for a common blackboard, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a dust collection device for an ordinary blackboard comprises a dust collection head, wherein the dust collection head is in a waist-round shape, the dust collection head is made of silica gel, a cavity is formed in the dust collection head, a plurality of dust collection ports are formed in two sides and the lower side of the rear portion of the dust collection head, a plurality of springs are arranged in the dust collection head, two ends of the springs are fixedly connected with the inner side and the outer side of an inner cavity of the dust collection head respectively, a pressure sensor is fixedly mounted at the upper end of the rear portion of the dust collection head, a protective sleeve is arranged on the outer side of the pressure sensor, a pipeline is communicated with the middle lower side of the front portion of the dust collection head, a cover body is arranged at the bottom end of the pipeline, a barrel body is movably arranged on the lower side of the cover body, and the lower side of an inner ring of the cover body is in threaded connection with the upper end of an outer ring of the barrel body;

the utility model discloses a portable air purifier, including barrel, battery compartment, air outlet, the left upper end fixed mounting of barrel has the fixture block, the right side fixed mounting of barrel has the battery compartment, the inside battery that is provided with of battery compartment, the inside upside fixed mounting of battery compartment has microcontroller, the inside upside fixed mounting of barrel has the filter screen, the inside downside fixed mounting of barrel has branch, the top fixed mounting of branch has the air exhauster, the air outlet has been seted up to the bottom side of barrel, just the top side of air outlet extends to the inside bottom side of barrel.

In a preferred embodiment of the present invention, the protective cover has a semicircular lateral cross-section, is made of rubber, and is fixedly connected to the rear side of the dust collection head at a side close to the dust collection head.

As a preferred embodiment of the present invention, the number of the pressure sensors is several, the pressure sensors are horizontally and equidistantly disposed at the upper end of the rear portion of the dust collection head, the output ends of the pressure sensors are connected to the input end of the microcontroller through wires, and the output end of the microcontroller is connected to the input end of the exhaust fan through wires.

In a preferred embodiment of the present invention, the front cross-section of the fixture block is 7-shaped, and the fixture block is made of elastic hard plastic.

As a preferred embodiment of the present invention, a charging port is disposed at a bottom side of the battery compartment, the charging port is electrically connected to a storage battery through a wire, and the storage battery is electrically connected to the suction fan and the pressure sensor through wires, respectively.

In a preferred embodiment of the present invention, the pipe is movably connected to the top side of the cover body by a sealing bearing at the lower end of the outer ring, and the bottom end of the pipe extends to the top side inside the cover body.

As a preferred embodiment of the present invention, the pipe is a flexible pipe.

Compared with the prior art, the invention provides a dust suction device for a common blackboard, which has the following beneficial effects:

this a dust extraction for ordinary blackboard, dust absorption head through setting up, when using, at first with the dust absorption headgear on the wrist, then insert the barrel on the waist of trousers through the fixture block, and when writing work and using the blackboard eraser with the chalk, user's the back of the hand department can diminish with the contained angle of wrist department, so the back of the hand can offset with the lag, and make pressure sensor sense pressure, thereby start the air exhauster through pressure sensor, take out the dust that produces in the chalk use and the blackboard eraser use in to the barrel, the dust volume in the air has effectively been reduced, thereby teacher's inspiratory dust volume has effectively been reduced, be favorable to teacher's healthy.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of a dust sucking apparatus for a general blackboard according to the present invention;

FIG. 2 is an inside view of a dust suction head of the dust suction apparatus for a general blackboard according to the present invention;

FIG. 3 is a rear view of a dust suction head of the dust suction apparatus for a general blackboard according to the present invention;

FIG. 4 is a side view of a dust suction head of the dust suction apparatus for a general blackboard of the present invention;

FIG. 5 is an enlarged view of the portion A of the dust suction device for a general blackboard according to the present invention;

fig. 6 is a signal transmission diagram of a pressure sensor of a dust suction apparatus for a general blackboard according to the present invention.

In the figure: 1. a dust collection head; 2. a dust suction port; 3. a spring; 4. a pressure sensor; 5. a protective sleeve; 6. a pipeline; 7. a cover body; 8. a barrel; 9. a clamping block; 10. a battery compartment; 11. a storage battery; 12. a microcontroller; 13. filtering with a screen; 14. a strut; 15. an exhaust fan; 16. an air outlet; 17. a charging port.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-6, the present invention provides a technical solution: a dust suction device for a common blackboard comprises a dust suction head 1, wherein the dust suction head 1 is in a waist-round shape, namely a long rectangle, two sides of the dust suction head are respectively connected with two semicircles, the manufacturing material of the dust suction head 1 is silica gel, the silica gel can provide certain elasticity for the dust suction head 1, the dust suction head is favorable for adapting to wrists of different users, a cavity is arranged in the dust suction head 1, a plurality of dust suction ports 2 are respectively arranged on two sides and lower side of the rear part of the dust suction head 1, the dust suction ports 2 are used for sucking dust, a plurality of springs 3 are arranged in the dust suction head 1, two ends of the springs 3 are respectively and fixedly connected with the inner side and the outer side of the inner cavity of the dust suction head 1, the springs 3 can provide a supporting effect to support the inner cavity of the dust suction head 1, a pressure sensor 4 is fixedly arranged at the upper end of the rear part of the dust suction head 1, and a protective sleeve 5 is arranged outside the pressure sensor 4, the lateral cross section of the protecting sleeve 5 is semicircular, the protecting sleeve 5 is made of rubber, one side, close to the dust collection head 1, of the protecting sleeve 5 is fixedly connected with the rear side of the dust collection head 1, the protecting sleeve 5 can protect the pressure sensor 4, meanwhile, the back of the hand of a user is prevented from directly contacting with the pressure sensor 4, discomfort caused when the user contacts with a hard object is reduced, the middle lower side of the front surface of the dust collection head 1 is communicated with a pipeline 6, the pipeline 6 is a flexible pipeline, the pipeline 6 is used for transmitting dust, meanwhile, the flexibility of the pipeline is convenient for the movement of the hand of the user, the bottom end of the pipeline 6 is provided with a cover body 7, the lower side of the cover body 7 is movably provided with a cylinder body 8, the pipeline 6 is movably connected with the top side of the cover body 7 through a sealing bearing at the lower end of an outer ring, the bottom end of the pipeline 6 extends to the top side inside the cover body 7, and the lower side of the inner ring of the cover body 7 is in threaded connection with the upper end of the outer ring of the cylinder body 8, the cover body 7 can be separated from the cylinder body 8 by rotating the cover body 7, so that dust in the cylinder body 8 can be cleaned conveniently;

the left upper end of barrel 8 is fixedly provided with a clamping block 9, the cross section of the front surface of the clamping block 9 is 7-shaped, the clamping block 9 is made of elastic hard plastic, the elastic hard plastic can provide certain elasticity for the clamping block 9, a user can insert the barrel 8 onto the waist of trousers conveniently, the right side of the barrel 8 is fixedly provided with a battery bin 10, a storage battery 11 is arranged inside the battery bin 10, the upper side inside the battery bin 10 is fixedly provided with a microcontroller 12, the upper side inside the barrel 8 is fixedly provided with a filter screen 13, the filter screen 13 is used for filtering dust, the lower side inside the barrel 8 is fixedly provided with a support rod 14, the top end of the support rod 14 is fixedly provided with an exhaust fan 15, the pressure sensors 4 are arranged in a plurality, the pressure sensors 4 are horizontally arranged at the upper end of the rear part of the dust collection head 1 at equal intervals, and the output end of the pressure sensors 4 is connected with the input end of the microcontroller 12 through a wire, the output end of the microcontroller 12 is connected with the input end of the exhaust fan 15 through a lead, when chalk is used for writing and the blackboard eraser is used, the included angle between the back of the hand and the wrist of a user is reduced, so the back of the hand will abut against the protective sleeve 5 and the pressure sensor 4 will sense the pressure, the pressure sensor 4 will start the exhaust fan 15 through the microcontroller 12 to draw the dust into the cylinder 8, a charging port 17 is arranged at the bottom side of the battery chamber 10, the charging port 17 is electrically connected with the storage battery 11 through a conducting wire, the storage battery 11 can be charged through the charging port 17, the storage battery 11 is respectively and electrically connected with the exhaust fan 15 and the pressure sensor 4 through leads, the storage battery 11 is used for supplying power to the exhaust fan 15 and the pressure sensor 4, an air outlet 16 is formed in the bottom side of the cylinder 8, and the top side of the air outlet 16 extends to the bottom side of the inside of the cylinder 8.

During operation, at first overlap dust absorption head 1 on the wrist, then insert barrel 8 on the waist of trousers through fixture block 9, and when writing work and using the blackboard eraser with the chalk, the contained angle of user's back of the hand department and wrist department can diminish, so the back of the hand can offset with lag 5, and make pressure sensor 4 sense pressure, thereby start air exhauster 15 through pressure sensor 4, take out the dust that produces in the chalk use and the blackboard eraser use to barrel 8 in, the dust volume in the air has effectively been reduced, thereby effectively reduced the inspiratory dust volume of teacher, be favorable to teacher's healthy.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A dust suction device for a common blackboard comprises a dust suction head (1), and is characterized in that: the dust collection head (1) is in a waist-round shape, the dust collection head (1) is made of silica gel, the interior of the dust collection head (1) is a cavity, a plurality of dust collection ports (2) are respectively arranged at the two sides and the lower side of the rear part of the dust collection head (1), a plurality of springs (3) are arranged inside the dust collection head (1), two ends of the springs (3) are respectively fixedly connected with the inner side and the outer side of the inner cavity of the dust collection head (1), the upper end of the rear part of the dust collection head (1) is fixedly provided with a pressure sensor (4), a protective sleeve (5) is arranged on the outer side of the pressure sensor (4), a pipeline (6) is communicated with the middle lower side of the front surface of the dust collection head (1), a cover body (7) is arranged at the bottom end of the pipeline (6), a cylinder body (8) is movably arranged at the lower side of the cover body (7), the lower side of the inner ring of the cover body (7) is in threaded connection with the upper end of the outer ring of the cylinder body (8);

the utility model discloses a solar battery, including barrel (8), battery storehouse (10), upside fixed mounting of battery storehouse (10), battery storehouse (10) have the fixture block (9) on the left upper end fixed mounting, the right side fixed mounting of barrel (8) has battery storehouse (10), the inside of battery storehouse (10) is provided with battery (11), the inside upside fixed mounting of battery storehouse (10) has microcontroller (12), the inside upside fixed mounting of barrel (8) has filter screen (13), the inside downside fixed mounting of barrel (8) has branch (14), the top fixed mounting of branch (14) has air exhauster (15), air outlet (16) have been seted up to the bottom side of barrel (8), just the top side of air outlet (16) extends to the inside bottom side of barrel (8).

2. A dust sucking apparatus for a general blackboard according to claim 1, wherein: the lateral cross section of the protective sleeve (5) is semicircular, the protective sleeve (5) is made of rubber, and one side, close to the dust collection head (1), of the protective sleeve (5) is fixedly connected with the rear side of the dust collection head (1).

3. A dust sucking apparatus for a general blackboard according to claim 1, wherein: the quantity of pressure sensor (4) is a plurality of, and is a plurality of pressure sensor (4) level equidistance sets up the upper end at dust absorption head (1) rear portion, the output of pressure sensor (4) passes through the wire and is connected with microcontroller's (12) input, microcontroller's (12) output passes through the wire and is connected with the input of air exhauster (15).

4. A dust sucking apparatus for a general blackboard according to claim 1, wherein: the cross section of the front surface of the clamping block (9) is in a 7 shape, and the clamping block (9) is made of elastic hard plastic.

5. A dust sucking apparatus for a general blackboard according to claim 1, wherein: the bottom side of the battery compartment (10) is provided with a charging port (17), the charging port (17) is electrically connected with the storage battery (11) through a lead, and the storage battery (11) is electrically connected with the exhaust fan (15) and the pressure sensor (4) through leads respectively.

6. A dust sucking apparatus for a general blackboard according to claim 1, wherein: the pipeline (6) is movably connected with the top side of the cover body (7) through a sealing bearing at the lower end of the outer ring, and the bottom end of the pipeline (6) extends to the top side inside the cover body (7).

7. A dust sucking apparatus for a general blackboard according to claim 1, wherein: the pipeline (6) is a flexible pipeline.