CN113511023A

CN113511023A - Environment-friendly blackboard

Info

Publication number: CN113511023A
Application number: CN202110919164.4A
Authority: CN
Inventors: 周格格
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-10-19

Abstract

The invention discloses an environment-friendly blackboard which comprises a blackboard body and two mounting plates, wherein a frame is fixedly mounted at the edge of the blackboard body, the two mounting plates are symmetrically and fixedly mounted on the side walls of the upper end and the lower end of the frame, a sliding hole is formed in the side wall of each mounting plate, a fixing cylinder is arranged right below the blackboard body and fixedly mounted on the lower end surface of the mounting plate, a filter screen is vertically and fixedly mounted in the fixing cylinder, a fan is fixedly mounted on the inner wall of the fixing cylinder, and an air outlet is formed in the left end of the fixing cylinder. According to the chalk dust collector, the ascending air flow can drive the one-way fan blades to rotate in a one-way mode and further continuously impact the side wall of the filter screen, so that the filter screen vibrates, chalk dust on the filter screen falls into the collecting box under the action of gravity, collection of the chalk dust is facilitated, and the chalk dust is prevented from being sucked by teachers and students to cause damage to bodies of the teachers and students.

Description

Environment-friendly blackboard

Technical Field

The invention relates to the technical field of teaching, in particular to an environment-friendly blackboard.

Background

The blackboard is a teaching tool commonly used by people in a teaching classroom, and is convenient for teachers to write and teach.

Every time after a teacher writes the characters on a blackboard, the characters on the blackboard are erased by the blackboard eraser and then written continuously, and when the teacher wipes the blackboard, chalk dust on the blackboard can float everywhere and is easily sucked into a body by the teacher on a table and students sitting in front rows, so that the bodies of the teacher and the students are damaged.

In order to solve the above problems, an environment-friendly blackboard is proposed.

Disclosure of Invention

The invention aims to overcome the defects that in the prior art, when a teacher is full of characters on a blackboard, the characters on the blackboard are always erased by using a blackboard eraser and then written continuously, and chalk dust on the blackboard can float around and is easily sucked into a body by the teacher on a desk and students sitting in front rows in the process of erasing the blackboard by the teacher, so that the bodies of the teachers and the students are damaged, and accordingly the environment-friendly blackboard is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

an environment-friendly blackboard comprises a blackboard body and two mounting plates, wherein a frame is fixedly arranged at the edge of the blackboard body, the two mounting plates are symmetrically and fixedly arranged on the side walls of the upper end and the lower end of the frame, a slide hole is formed in the side wall of each mounting plate, a fixing cylinder is arranged under the blackboard body and fixedly arranged on the lower end surface of the mounting plate, a filter screen is vertically and fixedly arranged in the fixing cylinder, a fan is fixedly arranged on the inner wall of the fixing cylinder, an air outlet is formed in the left end of the fixing cylinder, a fixing frame is arranged in the air outlet, a rotating shaft is transversely and rotatably connected in the fixing frame, a driving wheel is fixedly arranged at the left end of the rotating shaft, an one-way impeller is fixedly arranged at the right end of the driving wheel, the driving wheel is connected with a driven wheel through transmission belt, and a reciprocating screw is fixedly arranged at the center of the right end surface of the driven wheel, the reciprocating screw rod is divided into a left section and a right section, each section of the reciprocating screw rod is in threaded connection with a moving sleeve, the lower end surface of each moving sleeve is fixedly provided with a cleaning plate, a plurality of negative pressure holes are arranged at equal intervals on one side of the cleaning plate close to the blackboard body, a cleaning brush is arranged between every two adjacent negative pressure holes, each cleaning brush is attached to the side wall of the blackboard body, a filter screen is vertically and fixedly arranged in each cleaning plate, the inner walls of the cleaning plates are rotatably connected with one-way fan blades, one sides of the two cleaning plates opposite to each other are respectively provided with an inclined spray hole, the spray holes are communicated with the cleaning plates, and the one end that the orifice deviates from the cleaning plate is relative with the blackboard body, every the equal sliding connection of lower extreme of cleaning plate is in the mounting panel, and the equal fixed mounting of lower extreme of every cleaning plate has the hose, every the other end of hose all communicates with each other with the solid fixed cylinder.

Preferably, the last symmetry of reciprocal lead screw is provided with two risers, every rotate between riser and the reciprocal lead screw and be connected, every the equal fixed mounting of riser is in the up end of mounting panel.

Preferably, the lower extreme of cleaning plate all is provided with collects the box, every the upper end of collecting the box all communicates with cleaning plate inside each other, just collect the upper end threaded connection of box in the cleaning plate.

Preferably, the one-way fan blade is positioned right above the hose.

Compared with the prior art, the invention has the beneficial effects that:

the air in the fixed cylinder is discharged into the cleaning plate through the two hoses, the pressure of one side of the negative pressure hole in the cleaning plate is reduced due to the airflow which flows upwards quickly, and chalk dust falling from the blackboard can enter the cleaning plate through the negative pressure hole under the action of the difference of the internal pressure and the external pressure of the negative pressure hole, and is filtered by the filter screen and adhered to the side wall of the filter screen; the ascending air current still can drive one-way flabellum and rotate one-way rotation, and then the continuous lateral wall that strikes the filter screen for the filter screen takes place the vibration, and makes the chalk dust on the filter screen fall into in collecting the box under the effect of gravity, makes things convenient for the collection of chalk dust, has avoided chalk dust to be inhaled by teachers and students and has caused the injury to its health.

Drawings

FIG. 1 is a schematic front view of an environment-friendly blackboard according to the present invention;

FIG. 2 is a schematic side view showing a cleaning plate of an environmentally friendly blackboard according to the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

in the figure: the blackboard cleaning machine comprises a unidirectional impeller 1, a fan 2, a filter plate 3, a fixed cylinder 4, a driving wheel 5, a hose 6, a mounting plate 7, a blackboard body 8, spray holes 9, a driven wheel 10, a transmission belt 11, a frame 12, a collection box 13, a reciprocating screw 14, unidirectional fan blades 15, a cleaning plate 16, a filter screen 17, negative pressure holes 18 and a cleaning brush 19.

Detailed Description

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.

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.

Referring to fig. 1-3, an environment-friendly blackboard comprises a blackboard body 8 and two mounting plates 7, a frame 12 is fixedly mounted at the edge of the blackboard body 8, the two mounting plates 7 are symmetrically and fixedly mounted on the side walls of the upper and lower ends of the frame 12, a slide hole is formed on the side wall of each mounting plate 7, a fixed cylinder 4 is arranged right below the blackboard body 8, the fixed cylinder 4 is fixedly mounted on the lower end surface of the mounting plate 7, a filter plate 3 is vertically and fixedly mounted in the fixed cylinder 4, a fan 2 is fixedly mounted on the inner wall of the fixed cylinder 4, an air outlet is formed in the left end of the fixed cylinder 4, a fixed frame is arranged in the air outlet, a rotating shaft is transversely and rotatably connected in the fixed frame, a driving wheel 5 is fixedly mounted at the left end of the rotating shaft, a one-way impeller 1 is fixedly mounted at the right end of the driving wheel 5, a driven wheel 10 is in transmission connection through a transmission belt 11, a reciprocating screw 14 is fixedly mounted at the center of the right end surface of the driven wheel 10, the reciprocating screw 14 is divided into a left section and a right section, each section of reciprocating screw 14 is in threaded connection with a moving sleeve, the lower end face of each moving sleeve is fixedly provided with a cleaning plate 16, one side of the cleaning plate 16 close to the blackboard body 8 is provided with a plurality of negative pressure holes 18 at equal intervals, a cleaning brush 19 is arranged between every two adjacent negative pressure holes 18, each cleaning brush 19 is attached to the side wall of the blackboard body 8, a filter screen 17 is vertically and fixedly arranged in each cleaning plate 16, the inner wall of each cleaning plate 16 is rotatably connected with a one-way fan blade 15, one side of each cleaning plate 16 opposite to the other is respectively provided with an inclined spray hole 9, the spray holes 9 are communicated with the cleaning plates 16, and the one end that orifice 9 deviates from cleaning plate 16 is relative with blackboard body 8, and the equal sliding connection of lower extreme of every cleaning plate 16 is in mounting panel 7, and the equal fixed mounting of lower extreme of every cleaning plate 16 has hose 6, and the other end of every hose 6 all communicates each other with solid fixed cylinder 4.

Furthermore, two vertical plates are symmetrically arranged on the reciprocating screw 14, each vertical plate is rotatably connected with the reciprocating screw 14, each vertical plate is fixedly arranged on the upper end surface of the upper mounting plate 7, and the vertical plates have a supporting function on the reciprocating screw 14; the lower ends of the cleaning plates 16 are respectively provided with a collecting box 13, the collecting boxes 13 are convenient for collecting chalk dust, and further convenient for recycling and utilizing the chalk dust, the upper end of each collecting box 13 is communicated with the inside of the cleaning plate 16, and the upper ends of the collecting boxes 13 are in threaded connection with the inside of the cleaning plate 16; the unidirectional fan 15 is located directly above the hose 6.

In the invention, when a blackboard needs to be cleaned, a teacher can control the fan 2 to be opened through the controller, after the fan 2 is started, outside air is sucked through the input end at the left end and is discharged into the fixed cylinder 4, so that the air pressure in the fixed cylinder 4 is increased, the air flowing into the fixed cylinder 4 from the left end can drive the one-way impeller 1 to rotate and further drive the driving wheel 5 to rotate, the driving wheel 5 drives the driven wheel 10 to rotate through the driving belt 11 and further drive the reciprocating lead screw 14 to rotate, in the rotating process of the reciprocating lead screw 14, the two moving sleeves can slide left and right on the reciprocating lead screw 14, the moving sleeve can drive the cleaning plate 16 to move left and right, and the cleaning plate 16 cleans chalk dust on the blackboard body 8 through the cleaning brush 19, so that the chalk dust on the blackboard body 8 can quickly drop;

specifically, air in the fixed cylinder 4 is discharged into the cleaning plate 16 through the two hoses 6, the pressure of one side of the negative pressure hole 18 in the cleaning plate 16 is reduced due to the airflow which flows upwards quickly, and under the action of the pressure difference between the inside and the outside of the negative pressure hole 18, chalk dust falling from a blackboard enters the cleaning plate 16 through the negative pressure hole 18 and is filtered by the filter screen 17 to be adhered to the side wall of the filter screen 17; the ascending air flow can drive the one-way fan blades 15 to rotate in a one-way mode and further continuously impact the side wall of the filter screen 17, so that the filter screen 17 vibrates, chalk dust on the filter screen 17 falls into the collecting box 13 under the action of gravity, collection of the chalk dust is facilitated, and the chalk dust is prevented from being sucked by teachers and students to cause damage to bodies of the teachers and students; the rising air current finally can be discharged through the orifice 9, further blasts the chalk dust on the blackboard body 8 surface for the chalk dust drops more easily, has improved the clean and tidy degree on negative pressure hole 18's clean effect and blackboard body 8 surface.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an environment-friendly blackboard, includes blackboard body (8) and two mounting panels (7), its characterized in that, the edge fixed mounting of blackboard body (8) has frame (12), two mounting panel (7) symmetry fixed mounting is on the upper and lower both ends lateral wall of frame (12), every the slide opening has all been seted up on the lateral wall of mounting panel (7), be provided with solid fixed cylinder (4) under blackboard body (8), gu fixed cylinder (4) fixed mounting is at the lower terminal surface of mounting panel (7), gu fixed cylinder (4) interior vertical fixed mounting has filter plate (3), gu fixed cylinder (4) fixed mounting has fan (2) on the inner wall of inner wall, the air outlet has been seted up to the left end of solid fixed cylinder (4), be provided with the mount in the air outlet, horizontal rotation is connected with the pivot in the mount, the left end fixed mounting of pivot has action wheel (5), the right-hand member fixed mounting of action wheel (5) has one-way impeller (1), action wheel (5) are connected with from driving wheel (10) through drive belt (11) transmission, from the center of driving wheel (10) right-hand member face fixed mounting have reciprocal lead screw (14), reciprocal lead screw (14) divide into about two sections, every section equal threaded connection has the removal cover on reciprocal lead screw (14), every remove the equal fixed mounting of lower terminal surface of cover and have cleaning plate (16), one side that cleaning plate (16) are close to blackboard body (8) is equidistant has seted up a plurality of negative pressure holes (18), every two are adjacent be provided with cleaning brush (19) between negative pressure hole (18), every cleaning brush (19) all pastes with the lateral wall of blackboard body (8), every equal vertical fixed mounting has filter screen (17) in cleaning plate (16), it is connected with one-way flabellum (15) to rotate on the inner wall of cleaning plate (16), two clean board (16) relative one side sets up and inclines respectively and be provided with orifice (9), orifice (9) and clean board (16) communicate each other, just orifice (9) deviate from the one end of clean board (16) and are relative with blackboard body (8), every the equal sliding connection of lower extreme of clean board (16) is in mounting panel (7), and the equal fixed mounting of lower extreme of every clean board (16) has hose (6), every the other end of hose (6) all communicates each other with solid fixed cylinder (4).

2. The environment-friendly blackboard according to claim 1, wherein the reciprocating lead screw (14) is symmetrically provided with two vertical plates, each vertical plate is rotatably connected with the reciprocating lead screw (14), and each vertical plate is fixedly mounted on the upper end face of the mounting plate (7).

3. An environment-friendly blackboard according to claim 1, characterised in that the lower ends of the cleaning plates (16) are provided with collecting boxes (13), the upper end of each collecting box (13) is communicated with the inside of the cleaning plate (16), and the upper end of the collecting box (13) is screwed in the cleaning plate (16).

4. An environment friendly blackboard according to claim 1, characterised in that the one-way fan blades (15) are located right above the hose (6).