CN201534433U

CN201534433U - Automatic anti-spreading dust-absorption blackboard

Info

Publication number: CN201534433U
Application number: CN2009202530933U
Authority: CN
Inventors: 倪庆军; 张卫华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-16
Filing date: 2009-11-16
Publication date: 2010-07-28
Anticipated expiration: 2019-11-16

Abstract

The utility model discloses an automatic anti-spreading dust-absorption blackboard, comprising a board body (1). An upward blast pipe (2) is fixed at an upper edge of the board body (1), and a downward blow port (3) is arranged on a lower wall of the blast pipe (2). An upward exhaust tube (4) is arranged at a lower edge of the board body (1), and an exhaust port (5) is arranged on an upper wall of the exhaust tube (4). The back of the board body (1) is provided with a blowing filter circulating device (8), and the blast pipe (2) and the exhaust tube (4) are connected with the blowing filter circulating device (8) respectively through a blow-out pipe (6) and an absorption pipe (7). Compared with current blackboards used for teaching, the automatic anti-spreading dust-absorption blackboard can not only limit dust within the board body in order to prevent the dust from dispersing but also blow the dust into absorption ports in order to quicken air purification, thereby protecting teachers and students in front rows against dust.

Description

Automatic non-proliferation dust-absorbing blackboard

Technical field

The utility model relates to a kind of the teaching with the improvement of blackboard, belongs to the teaching aid field, specifically a kind of automatic non-proliferation dust-absorbing blackboard.

Background technology

Blackboard is one of indispensable instrument in the teaching, and the writing on the blackboard of using when teacher imparts knowledge to students all is to write on blackboard with chalk basically.Teacher or student can produce a large amount of dust when erasing the board.Present employed blackboard all is to be made of plate body and plate edge, and the lower edge of plate body is provided with the plate edge, and plate is continued to use in collecting dust and interim blackboard eraser and the chalk placed.The existing deficiency of this blackboard is: owing to be not used in the device that absorbs dust, can only be to wait for that passively dust oneself descends slowly and lightly on the plate edge, and plate is extremely limited again along the dust that can collect, most of dust are floating near the dais, but dust serious threat teacher that these are floating and front-seat student's is healthy, the a large amount of dust of long-term suction causes the generation of chronic illness easily, influences teacher and front-seat student's life-span.

Summary of the invention

The purpose of this utility model is to provide a kind of dust diffusion of not only can preventing, and dust can be intercepted, the automatic non-proliferation dust-absorbing blackboard of fast Absorption.

For reaching above purpose, the technical scheme that the utility model adopted is: this automatic non-proliferation dust-absorbing blackboard, constitute by plate body, it is characterized in that on the upper edge of plate body fixedly up-draught pipe, be provided with downward blowing mouth on the lower wall of blower, fixing exhaust column on the lower edge of plate body, the upper wall of exhaust column is provided with suction opeing, be provided with the air blast filtering circulating device at the back side of plate body, blower is connected with the air blast filtering circulating device with suction line by discharge pipe respectively with exhaust column.

The utility model is also implemented by following measure: described downward blowing mouth and suction opeing are all equidistantly laid 2～4 rows, and the distance of blowing mouth and plate body is 10～50cm downwards; Described air blast filtering circulating device, constitute by air blast and air filtering box, discharge pipe is connected with the gas outlet of air blast, the air inlet of air blast is connected with the outlet of air filtering box, suction line is connected with the import of air filtering box, inside at air filtering box is provided with filter screen, is provided with the dedusting door on the sidewall of air filtering box; Be provided with the infrared induction head of equidistant arrangement on the diapire of blower, the controller of infrared induction head is connected with air blast by lead, and the infrared induction head stretches out from the lower wall of blower, and the distance between infrared induction head and the plate body is 2～10cm.

The beneficial effects of the utility model are: compare with the blackboard that present teaching is used, owing to set up the air blast filtering circulating device, teacher or student are when blackboard wiping, dust not only can be limited in the blackboard plate body near, prevent its diffusion, and dust can be blown off in air entry, accelerate air cleaning speed, thereby guarantee that teacher and front-seat student avoid the harm of dust; Air blast is connected by the controller of lead with the infrared induction head, and it is out-of-date to prevent that student or teacher from walking before the plate body, triggers the infrared induction head, makes air blast work, the waste power supply.

Description of drawings

Fig. 1, be structure front-view schematic diagram of the present utility model.

Fig. 2, analyse and observe enlarged diagram along Figure 1A-A for the utility model.

The specific embodiment

Make the utility model with reference to accompanying drawing 1,2.This automatic non-proliferation dust-absorbing blackboard, constitute by plate body 1, it is characterized in that on the upper edge of plate body 1 fixedly up-draught pipe 2, on the lower wall of blower 2, be provided with downward blowing mouth 3, blowing by downward blowing mouth 3 forms vertical brattice, with dust be isolated in plate body 1 near, and dust blown downwards, fixing exhaust column 4 on the lower edge of plate body 1, the upper wall of exhaust column 4 is provided with suction opeing 5, absorb dust by exhaust column 4, be provided with air blast filtering circulating device 8 at the back side of plate body 1, blower 2 is connected with air blast filtering circulating device 8 with suction line 7 by discharge pipe 6 respectively with exhaust column 4.

Described downward blowing mouth 3 is all equidistantly laid 2～4 rows with suction opeing 5, and blowing mouth 3 is 10～50cm with the distance of plate body 1 downwards; Described air blast filtering circulating device 8, constitute by air blast 9 and air filtering box 10, discharge pipe 6 is connected with the gas outlet of air blast 9, the air inlet of air blast 9 is connected with the outlet of air filtering box 10, suction line 7 is connected with the import of air filtering box 10, be provided with filter screen 12 in the inside of air filtering box 10, by air blast 9 air circulation is flowed, the airborne dust-filtering that will absorb by air filtering box 10 comes out, on the sidewall of air filtering box 10, be provided with dedusting door 13, can remove the dust that leaches in the air filtering box 10 by dedusting door 13; On the diapire of blower 2, be provided with the infrared induction head 11 of equidistant arrangement, the controller 14 of infrared induction head 11 is connected with air blast 9 by lead, control the duty of air blast 9 by ultrared switching, infrared induction head 11 stretches out from the lower wall of blower 2, distance between infrared induction head 11 and the plate body 1 is 2～10cm, and it is out-of-date to prevent that student or teacher from walking before the plate body, triggers infrared induction head 11, make air blast 9 work, the waste power supply; Described air blast filtering circulating device 8 can be installed in the body of wall of plate body 1 rear side.

Claims

1. automatic non-proliferation dust-absorbing blackboard, constitute by plate body (1), it is characterized in that on the upper edge of plate body (1) fixedly up-draught pipe (2), on the lower wall of blower (2), be provided with downward blowing mouth (3), the fixing exhaust column (4) of going up on the lower edge of plate body (1), the upper wall of exhaust column (4) is provided with suction opeing (5), be provided with air blast filtering circulating device (8) at the back side of plate body (1), blower (2) is connected with air blast filtering circulating device (8) with suction line (7) by discharge pipe (6) respectively with exhaust column (4).

2. automatic non-proliferation dust-absorbing blackboard according to claim 1 is characterized in that described downward blowing mouth (3) and suction opeing (5) all equidistantly lay 2～4 rows, and blowing mouth (3) is 10～50cm with the distance of plate body (1) downwards; Described air blast filtering circulating device (8), constitute by air blast (9) and air filtering box (10), discharge pipe (6) is connected with the gas outlet of air blast (9), the air inlet of air blast (9) is connected with the outlet of air filtering box (10), suction line (7) is connected with the import of air filtering box (10), be provided with filter screen (12) in the inside of air filtering box (10), on the sidewall of air filtering box (10), be provided with dedusting door (13); On the diapire of blower (2), be provided with the infrared induction head (11) of equidistant arrangement, the controller (14) of infrared induction head (11) is connected with air blast (9) by lead, infrared induction head (11) stretches out from the lower wall of blower (2), and the distance between infrared induction head (11) and the plate body (1) is 2～10cm.