CN204472290U - Physics teaching writing device - Google Patents

Physics teaching writing device Download PDF

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Publication number
CN204472290U
CN204472290U CN201520180803.XU CN201520180803U CN204472290U CN 204472290 U CN204472290 U CN 204472290U CN 201520180803 U CN201520180803 U CN 201520180803U CN 204472290 U CN204472290 U CN 204472290U
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CN
China
Prior art keywords
suction duct
blackboard body
rectangle air
writing device
physics teaching
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520180803.XU
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Chinese (zh)
Inventor
单宝军
Original Assignee
单宝军
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 单宝军 filed Critical 单宝军
Priority to CN201520180803.XU priority Critical patent/CN204472290U/en
Application granted granted Critical
Publication of CN204472290U publication Critical patent/CN204472290U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of physics teaching writing device, easy dusting when erasing chalk writing to solve current blackboard, and the technical problem of harm health of human body, comprises blackboard body; Four angles of described blackboard body are fillet; Rectangle air-suction duct is provided with above and below described blackboard body, and the inlet scoop being positioned at the rectangle air-suction duct above and below described blackboard body is arranged in opposite directions, or be provided with rectangle air-suction duct on the limit, left side and right edge of described blackboard body, and the inlet scoop being positioned at the rectangle air-suction duct in the limit, left side of described blackboard body and right edge is arranged in opposite directions; This device also comprises the induced-draught fan being arranged at outdoor, and the air inlet of described induced-draught fan is communicated with via powder transfer pipelines is corresponding with the outlet of described rectangle air-suction duct; And be also provided with dust collection bag at the exhaust outlet place of described induced-draught fan.

Description

Physics teaching writing device
Technical field
The utility model relates to education sector, particularly relates to a kind of physics teaching writing device.
Background technology
In current physics teaching, physics is an important subject, also be one of basic studies of science and engineering study, getting well of Physics Learning plays vital effect with bad to the career of later student, at present in most universities and colleges of China, in one week, the joint number of Physics Course is more, and Same Physical teacher teaches the student of several classes possibly simultaneously, in current teacher takes over a class for an absent teacher, a large amount of formula can be used in physics teaching, accompanying drawing etc., and teacher will write writing on the blackboard many times on blackboard, when writing on the blackboard is repeatedly with erasing, the chalk powder of its erasing brings very large worry, as when wiping and after clashing, its chalk powder can be a large amount of free-and-easy, cause the environmental pollution of dais and teacher, also be a kind of injury to the health of student and teacher, therefore, be necessary to be solved above-mentioned problem.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, provides a kind of physics teaching writing device, easy dusting when erasing chalk writing to solve current blackboard, the technical problem of harm health of human body.
In order to realize the purpose of this utility model, the technical scheme that the utility model adopts is:
Design a kind of physics teaching writing device, comprise blackboard body; It is characterized in that: four angles of described blackboard body are fillet; Rectangle air-suction duct is provided with above and below described blackboard body, and the inlet scoop being positioned at the rectangle air-suction duct above and below described blackboard body is arranged in opposite directions, or be provided with rectangle air-suction duct on the limit, left side and right edge of described blackboard body, and the inlet scoop being positioned at the rectangle air-suction duct in the limit, left side of described blackboard body and right edge is arranged in opposite directions; This device also comprises the induced-draught fan being arranged at outdoor, and the air inlet of described induced-draught fan is communicated with via powder transfer pipelines is corresponding with the outlet of described rectangle air-suction duct; And be also provided with dust collection bag at the exhaust outlet place of described induced-draught fan.
Further, the inlet scoop place of described rectangle air-suction duct is also provided with filter screen.
Further, above described blackboard body, below, limit, left side and right edge are provided with rectangle air-suction duct.
Further, above and below described blackboard body, rectangle air-suction duct is provided with.
Further, the limit, left side and right edge of described blackboard body are provided with rectangle air-suction duct.
Further, the thickness of described rectangle air-suction duct is 3-5cm.
Further, the length of described rectangle air-suction duct is less than or equal to the length of described blackboard body.
The beneficial effects of the utility model are:
1. by the rectangle air-suction duct of the design can by during because writing or erasing time the dust that produces siphon away, avoid it to drop and cause Environment pollution and infringement health of human body in indoor, secondly the induced-draught fan of the design is disposed in the outdoor, can not affect normal education activities.
2. by the induced-draught fan of the design after dust is carried out sucking-off, further can be expelled in dust collection bag, be convenient to reclaim, it also avoid the risk of secondary pollution.
3. four of blackboard body angles are designed to fillet by the design, and personnel can be avoided to encounter the risk damaged.
4. the thickness of rectangle air-suction duct is designed between 3-5cm by this device, and this design can not affect its normal education activities when teacher normally writes, and this thickness, also can not contact with the health of teacher in normal education activities simultaneously.
Accompanying drawing explanation
Fig. 1 is primary structure schematic diagram of the present utility model;
Fig. 2 is that blackboard body in the utility model and rectangle air-suction duct arrange rear side viewing primary structure schematic diagram mutually;
In figure: 1. blackboard body; 2. rectangle air-suction duct; 3. powder transfer pipelines; 4. induced-draught fan; 5. dust collection bag.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Embodiment 1: a kind of physics teaching writing device, see Fig. 1, Fig. 2; Comprise blackboard body; Four angles of described blackboard body are fillet; Four of blackboard body angles are designed to fillet by the design, and personnel can be avoided to encounter the risk damaged.Rectangle air-suction duct is provided with above and below described blackboard body, and the inlet scoop being positioned at the rectangle air-suction duct above and below described blackboard body is arranged in opposite directions, this device also comprises the induced-draught fan being arranged at outdoor, and the air inlet of described induced-draught fan is communicated with via powder transfer pipelines is corresponding with the outlet of described rectangle air-suction duct; And be also provided with dust collection bag at the exhaust outlet place of described induced-draught fan.By the rectangle air-suction duct of the design can by during because writing or erasing time the dust that produces siphon away, avoid it to drop and cause Environment pollution and infringement health of human body in indoor, secondly the induced-draught fan of the design is disposed in the outdoor, can not affect normal education activities.The further induced-draught fan by the design, after dust is carried out sucking-off, is further discharged in dust collection bag, is convenient to reclaim, it also avoid the risk of secondary pollution.Further, the thickness of described rectangle air-suction duct is 3-5cm; This design can not affect its normal education activities when teacher normally writes, the design of this thickness, also can not contact with the health of teacher in normal education activities simultaneously.In order to obtain better effect, in the present embodiment, the length of described rectangle air-suction duct is less than or equal to the length of described blackboard body.Further, the inlet scoop place of described rectangle air-suction duct is also provided with filter screen, this filter screen can avoid the foreign material such as the scraps of paper, chalk to enter in rectangle air-suction duct.
Embodiment 2, do not repeating with embodiment 1 something in common, difference is: above described blackboard body, below, limit, left side and right edge are provided with rectangle air-suction duct.
Embodiment 3, do not repeating with embodiment 1 something in common, difference is: on the limit, left side and right edge of described blackboard body, be provided with rectangle air-suction duct.
Although; what embodiment of the present utility model was announced is preferred embodiment; but be not limited thereto; those of ordinary skill in the art; very easily according to above-described embodiment, understand spirit of the present utility model, and make different amplifications and change; but only otherwise depart from spirit of the present utility model, all in protection domain of the present utility model.

Claims (7)

1. a physics teaching writing device, comprises blackboard body; It is characterized in that: four angles of described blackboard body are fillet; Rectangle air-suction duct is provided with above and below described blackboard body, and the inlet scoop being positioned at the rectangle air-suction duct above and below described blackboard body is arranged in opposite directions, or be provided with rectangle air-suction duct on the limit, left side and right edge of described blackboard body, and the inlet scoop being positioned at the rectangle air-suction duct in the limit, left side of described blackboard body and right edge is arranged in opposite directions; This device also comprises the induced-draught fan being arranged at outdoor, and the air inlet of described induced-draught fan is communicated with via powder transfer pipelines is corresponding with the outlet of described rectangle air-suction duct; And be also provided with dust collection bag at the exhaust outlet place of described induced-draught fan.
2. physics teaching writing device as claimed in claim 1, is characterized in that: in the inlet scoop place of described rectangle air-suction duct, be also provided with filter screen.
3. physics teaching writing device as claimed in claim 1, is characterized in that: above described blackboard body, below, limit, left side and right edge are provided with rectangle air-suction duct.
4. physics teaching writing device as claimed in claim 1, is characterized in that: above and below described blackboard body, be provided with rectangle air-suction duct.
5. physics teaching writing device as claimed in claim 1, is characterized in that: on the limit, left side and right edge of described blackboard body, be provided with rectangle air-suction duct.
6. physics teaching writing device as claimed in claim 1, is characterized in that: the thickness of described rectangle air-suction duct is 3-5cm.
7. physics teaching writing device as claimed in claim 1, is characterized in that: the length of described rectangle air-suction duct is less than or equal to the length of described blackboard body.
CN201520180803.XU 2015-03-29 2015-03-29 Physics teaching writing device Expired - Fee Related CN204472290U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520180803.XU CN204472290U (en) 2015-03-29 2015-03-29 Physics teaching writing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520180803.XU CN204472290U (en) 2015-03-29 2015-03-29 Physics teaching writing device

Publications (1)

Publication Number Publication Date
CN204472290U true CN204472290U (en) 2015-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520180803.XU Expired - Fee Related CN204472290U (en) 2015-03-29 2015-03-29 Physics teaching writing device

Country Status (1)

Country Link
CN (1) CN204472290U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757195A (en) * 2017-09-02 2018-03-06 张瑞君 A kind of collection apparatus for ash of blackboard for teaching
CN108116128A (en) * 2017-12-22 2018-06-05 苏州艾捷尔斯生物科技有限公司 A kind of environment-friendly type blackboard for education with dust suction and water circulatory function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757195A (en) * 2017-09-02 2018-03-06 张瑞君 A kind of collection apparatus for ash of blackboard for teaching
CN108116128A (en) * 2017-12-22 2018-06-05 苏州艾捷尔斯生物科技有限公司 A kind of environment-friendly type blackboard for education with dust suction and water circulatory function

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150715

Termination date: 20160329

CF01 Termination of patent right due to non-payment of annual fee