CN2695245Y - Dust-proof blackboard - Google Patents
Dust-proof blackboard Download PDFInfo
- Publication number
- CN2695245Y CN2695245Y CN 200420005689 CN200420005689U CN2695245Y CN 2695245 Y CN2695245 Y CN 2695245Y CN 200420005689 CN200420005689 CN 200420005689 CN 200420005689 U CN200420005689 U CN 200420005689U CN 2695245 Y CN2695245 Y CN 2695245Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- dust
- dustproof
- utility
- model
- Prior art date
- 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
Links
- 239000000428 dust Substances 0.000 claims abstract description 24
- 210000000282 Nails Anatomy 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Abstract
The utility model relates to a dust-proof blackboard whose aim is to prevent dust when the blackboard is erased and solve the problem of erasing the blackboard automatically. The dust-proof blackboard is mainly composed of lead wire, a dust-proof cover, the blackboard, a hook, a blackboard eraser, a connecting pin, a slideway, a blackboard frame and brush bristle. The dust-proof blackboard is characterized in that the both ends of the dust-proof cover are installed on the upper end of the blackboard frame through shafts. One end of the hook is connected with one end of the dust-proof cover. The support base of a pulley is installed on the upper side of the blackboard frame through nails. One end of the lead wire is tied in the middle of the blackboard eraser through the pulley. The utility model can prevent the dust and make erasing the blackboard more easily.
Description
(1) technical field:
The utility model relates to dustproof blackboard, belong to operation, Department of Transportation by International Patent Classification (IPC) (IPC) division, printing branch, write or drawing appliance, the big class of office appliance is write or drawing article, the assistant product group of writing or draw, big group of reusable plate of writing or drawing or tablet, the technical field of blackboard group.
(2) background technology:
At present, existing and once had about big group of the reusable plate of writing or drawing or tablet, the technology of blackboard group was all done very fruitful effort to the needs of dustproof blackboard, also once designed many outstanding technical schemes.As declaring of the Decree of Patent Office of China on the 23rd October in 2002 by Chen Minghua, Granted publication is that CN2517590Y China Patent No. (ZL) is: ZL02212074.2 number utility model patent title is the utility model patent of " transversal-push type multilayer Sliding blackboard ", the technical scheme that is adopted, big group of the reusable plate of writing or drawing or tablet, the technical elements of blackboard group is a routine of great value invention, and it has solved the technical problem that satisfies a large amount of writings on the blackboard in classroom and need not to wipe in the middle of the classroom demand of blackboard effectively.But still have some deficits, it also is difficult to solve when erasing the board dustproof; The technical problem of automatic blackboard cleaning.
(3) summary of the invention:
The technical problem of dustproof when the purpose of this utility model is to provide a kind of dustproof blackboard to erase the board with solution, automatic blackboard cleaning.
The technical scheme that above-mentioned technical problem to be solved in the utility model adopted is achieved in that dustproof blackboard of the present utility model, mainly is made of lead-in wire, pulley, dust cover, blackboard, bogie wheel, hook, blackboard eraser, connecting pin, slideway, blackboard frame, bristle.
In shape, structure and combination thereof, the total essential features of dustproof blackboard of the present utility model and immediate prior art is: the position embedding is installed in the inner side of blackboard frame around the blackboard, be combined into the integrative-structure of rectangular shape, function has been the effect of blackboard.In shape, structure and combination thereof, the dustproof blackboard of the present utility model technical characterictic different with immediate prior art is: the end positions axle of dust cover is installed in the upper end position of blackboard frame, the one end position system of hook is connected an end position of dust cover, be combined into erose integrative-structure, function has been that dust cover is to spool with plastics, when time spent pulling hook puts down it, in case the effect of flying dust.The center axle of bogie wheel is installed in the end positions of blackboard eraser, and the rear positions of bristle is glued a side position that is installed in blackboard eraser, is combined into the integrative-structure of rectangular shape, and function has been the effect of blackboard eraser.The support position nail of pulley is installed in the upper side position of blackboard frame, and an end of lead-in wire is combined into erose bascule by the centre position of pulley system at blackboard eraser, and function has been to spur lead-in wire, automatically the effect that blackboard is cleaned.Dustproof when so just having reached the erasing the board of dustproof blackboard of the present utility model; The purpose of automatic blackboard cleaning:
The beneficial effect of the dustproof blackboard of utility model is that the utility model is to solve when erasing the board to prevent dust; The technical scheme that technical problem adopted of automatic blackboard cleaning and existing and once had about big group of the reusable plate of writing or drawing or tablet, the technology of blackboard group has been compared three advantages and improvement:
First, because the end positions axle that has designed dust cover in the technical scheme of dustproof blackboard of the present utility model is installed in the upper end position of blackboard frame, the one end position system of hook is connected an end position of dust cover, be combined into erose integrative-structure, so easier solution dust cover is to spool with plastics, when time spent pulling hook puts down it, in case the technical problem of flying dust.
Second, because the center axle that has designed bogie wheel in the technical scheme of dustproof blackboard of the present utility model is installed in the end positions of blackboard eraser, the sticking side position that is installed in blackboard eraser of the rear positions of bristle, be combined into the integrative-structure of rectangular shape, so the technical problem of easier solution blackboard eraser.
The 3rd, because the support position nail that has designed pulley in the technical scheme of dustproof blackboard of the present utility model is installed in the upper side position of blackboard frame, one end of lead-in wire is by the centre position of pulley system at blackboard eraser, be combined into erose bascule, so easier solution can spur lead-in wire, the automatic technical problem that blackboard is cleaned.
(4) description of drawings:
Accompanying drawing provides the structural representation of dustproof blackboard of the present utility model:
Fig. 1: the overall structure schematic diagram that is dustproof blackboard of the present utility model;
Fig. 2: the blackboard eraser structural representation that is dustproof blackboard of the present utility model;
The label declaration at each position in the schematic diagram:
1 lead-in wire, 2 pulleys, 3 dust covers, 4 blackboards, 5 bogie wheels, 6 hooks
7 blackboard erasers, 8 connecting pins, 9 slideways, 10 blackboard frames, 11 bristles
(5) specific embodiment:
Below in conjunction with accompanying drawing, dustproof when dustproof blackboard of the present utility model is erased the board for realizing solving; The optimal way of the technical scheme that the technical problem of automatic blackboard cleaning is taked is described further:
Its static structure: see also accompanying drawing: as shown in the figure, dustproof blackboard of the present utility model mainly is made of lead-in wire 1, pulley 2, dust cover 3, blackboard 4, bogie wheel 5, hook 6, blackboard eraser 7, connecting pin 8, slideway 9, blackboard frame 10, bristle 11.Its major part lead-in wire 1, pulley 2, blackboard 4, bogie wheel 5, hook 6, blackboard eraser 7, connecting pin 8, blackboard frame 10, bristle 11 are selected for use by market.Its dust cover 3 is rectangular shape, is material with plastics, crosses the heat ductile forming processing and manufacturing.Its slideway 9 is groove shapes, is material with timber, through sawing shaping processing and manufacturing.
In shape, structure and combination thereof, the total essential features of dustproof blackboard of the present utility model and immediate prior art is: the position embedding is installed in the inner side of blackboard frame 10 around the blackboard 4, be combined into the integrative-structure of rectangular shape, function has been the effect of blackboard.In shape, structure and combination thereof, the dustproof blackboard of the present utility model technical characterictic different with immediate prior art is: the end positions axle of dust cover 3 is installed in the upper end position of blackboard frame 10, the one end position system of hook 6 is connected an end position of dust cover 3, be combined into erose integrative-structure, function has been that dust cover is to spool with plastics, when time spent pulling hook puts down it, in case the effect of flying dust.The center axle of bogie wheel 5 is installed in the end positions of blackboard eraser 7, and the rear positions of bristle 11 is glued a side position that is installed in blackboard eraser 7, is combined into the integrative-structure of rectangular shape, and function has been the effect of blackboard eraser.The support position of pulley 2 nail is installed in the upper side position of blackboard frame 10, and an end of lead-in wire 1 ties up to the centre position of blackboard eraser 7 by pulley 2, is combined into erose bascule, and function has been to spur lead-in wire, the automatic effect that blackboard is cleaned.
Below by using method, further set forth the dynamic structure relation of this practical dustproof blackboard: in use, in the time of the needs dustproof,, at first put down dust cover 3, just can block flying dust then, thereby finish the dustproof task according to physical principle.
In use, when needs erased the board, according to physical principle, at first the pulling lead-in wire 1, and blackboard eraser moves up and down then, thereby finishes the task of automatic blackboard cleaning.Dustproof when so just having realized the erasing the board of dustproof blackboard of the present utility model; The technical scheme of the technical problem of automatic blackboard cleaning.
Realize that preferred plan of the present utility model is is material with timber, utilize the basic equipment of stationery factory, take mass production, the demand with supply school circle so just can realize dustproof blackboard practical value of the present utility model and economic worth better.
Claims (3)
1. dustproof blackboard, it is to be made of lead-in wire (1), pulley (2), dust cover (3), blackboard (4), bogie wheel (5), hook (6), blackboard eraser (7), connecting pin (8), slideway (9), blackboard frame (10), bristle (11), the position embedding is installed in the inner side of blackboard frame (10) around its blackboard (4), it is characterized in that: the end positions axle of dust cover (3) is installed in the upper end position of blackboard frame (10), and the end position system of hook (6) is connected an end position of dust cover (3).
2. dustproof blackboard according to claim 1 is characterized in that: the center axle of bogie wheel (5) is installed in the end positions of blackboard eraser (7), the sticking side position that is installed in blackboard eraser (7) of the rear positions of bristle (11).
3. dustproof blackboard according to claim 1 is characterized in that: the support position nail of pulley (2) is installed in the upper side position of blackboard frame (10), and an end of lead-in wire (1) ties up to the centre position of blackboard eraser (7) by pulley (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005689 CN2695245Y (en) | 2004-03-03 | 2004-03-03 | Dust-proof blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005689 CN2695245Y (en) | 2004-03-03 | 2004-03-03 | Dust-proof blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695245Y true CN2695245Y (en) | 2005-04-27 |
Family
ID=34767587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420005689 Expired - Fee Related CN2695245Y (en) | 2004-03-03 | 2004-03-03 | Dust-proof blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695245Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108294724A (en) * | 2018-01-04 | 2018-07-20 | 朱线莉 | It is a kind of to be easy to adjusting type Vission detector for ophthalmology |
| CN108294723A (en) * | 2018-01-04 | 2018-07-20 | 朱康余 | It is a kind of to facilitate adjusting type Vission detector for ophthalmology |
-
2004
- 2004-03-03 CN CN 200420005689 patent/CN2695245Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108294724A (en) * | 2018-01-04 | 2018-07-20 | 朱线莉 | It is a kind of to be easy to adjusting type Vission detector for ophthalmology |
| CN108294723A (en) * | 2018-01-04 | 2018-07-20 | 朱康余 | It is a kind of to facilitate adjusting type Vission detector for ophthalmology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |