CN204749634U - Blackboard subassembly with absorb chalk dust function - Google Patents
Blackboard subassembly with absorb chalk dust function Download PDFInfo
- Publication number
- CN204749634U CN204749634U CN201520500399.XU CN201520500399U CN204749634U CN 204749634 U CN204749634 U CN 204749634U CN 201520500399 U CN201520500399 U CN 201520500399U CN 204749634 U CN204749634 U CN 204749634U
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard
- dirt
- lead
- chalk
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a blackboard subassembly with absorb chalk dust function, include blackboard, dust catcher, lead the dirt pipe and store up the dirt jar, it leads to the dirt hole to have seted up a plurality of on the blackboard, what the back of blackboard was provided with the loudspeaker form leads the dirt passageway, lead the wealthyer one end of the opening of dirt passageway with the back sealing connection of blackboard, lead the narrower one end of the opening of dirt passageway with the dust absorption mouth sealing connection of dust catcher, the dirt mouth has been seted up out to the lower extreme of dust catcher, it has seted up into the dirt mouth to store up the upper end of dirt jar, go out the dirt mouth with it leads to mutually to lead the higher one end in dirt pipe position, go into the dirt mouth with it leads to mutually to lead the lower one end in dirt pipe position. The utility model has the advantages of remove the definition that the chalk dust is effectual, improve chalk typeface on the blackboard.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of blackboard assembly with absorbing chalk dust function.
Background technology
Blackboard from traditional sense it be one can the plane of repeated writing, plate face is hard, is used for teaching.Make with plank or ground glass etc., can to write above with chalk.At present, after the chalk dust on blackboard eraser erasing blackboard, blackboard still can adhere to a little chalk dust, these chalk dusts, as removed not in time, can affect the use of blackboard, and when again writing on blackboard with chalk, the definition of font reduces.
Utility model content
After the utility model is wiped blackboard for the blackboard eraser of prior art, still a little chalk dust can be adhered to, affect the deficiency of the use of blackboard, provide a kind of except chalk dust is effective, improve the blackboard assembly with absorption chalk dust function of the definition of chalk font on blackboard.
The utility model is solved the problems of the technologies described above by following technological means: a kind of blackboard assembly with absorbing chalk dust function, comprises blackboard, dust catcher, dust guiding tube and dust storage container; Described blackboard offers several logical dirt holes; The back side of described blackboard is provided with trumpet-shapedly leads dirt passage, described in lead the wealthyer one end of dirt access portal and be connected with the sealing backside of described blackboard, described in lead the narrower one end of dirt access portal and described dust catcher suction port be tightly connected; The lower end of described dust catcher offers dust mouth, and the upper end of described dust storage container offers dust inlet, and the higher one end in described dust mouth and described dust guiding tube position interlinks, and the lower one end of described dust inlet and described dust guiding tube position interlinks.
Preferably: the aperture in described logical dirt hole is (0.5-2) mm.
Preferably: the lower end of described blackboard is provided with projection, described projection is provided with through hole bar, described through hole bar can be inserted in described logical dirt hole.
Preferably: the storage dirt area inner wall of described dust catcher is provided with touch sensor, described dust guiding tube is provided with electronic valve.
After the chalk dust in blackboard being wiped with blackboard eraser, start dust catcher, by chalk dust remaining in blackboard under dust catcher effect, through logical dirt hole, be sucked in dust catcher through trumpet-shaped dirt passage of leading again, realize the object that chalk dust remaining in blackboard is removed.When logical dirt hole occurs to block, lead to dirt hole by using through hole pole pair and carry out conducting.When the dust stored in the storage dirt region of dust catcher reaches the rational height of touch sensor, touch sensor generation signal, after electronic valve Received signal strength, opens, dust is fallen into dust storage container by dust guiding tube.
The utility model has the advantage of: logical dirt hole is set on blackboard, by dust catcher, chalk dust remaining in blackboard is removed, improve the definition of chalk font on the clearance of chalk dust on blackboard and blackboard.Further, when logical dirt hole occurs to block, lead to dirt hole by using through hole pole pair and carry out conducting, anti-stop-pass dirt hole plug, improve the pick-up performance of dust catcher.In addition, when the chalk dust stored in the storage dirt region of dust catcher reaches the rational height of touch sensor, touch sensor generation signal, after electronic valve Received signal strength, open, make dust fall into dust storage container by dust guiding tube, realize the object automatically removing chalk dust in dust catcher in time.
Accompanying drawing illustrates:
Fig. 1 is the side structure exemplary plot of the utility model embodiment.
Fig. 2 is the Facad structure exemplary plot of the utility model embodiment.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1-2, the present embodiment discloses a kind of blackboard assembly with absorbing chalk dust function, comprises blackboard 1, dust catcher 2, dust guiding tube 3 and dust storage container 4.
Described blackboard 1 is fixed on two symmetrically arranged first supporting seats 12, described blackboard 1 offers several logical dirt holes 5; The back side of described blackboard is provided with trumpet-shapedly leads dirt passage 6, described in lead the wealthyer one end of dirt passage 6 opening and be connected with the sealing backside of described blackboard 1, described in lead the narrower one end of the opening of dirt passage 6 and described dust catcher 2 suction port be tightly connected; Described dust catcher 2 is fixed on the second supporting seat 11, the lower end of described dust catcher 2 offers dust mouth, the upper end of described dust storage container 4 offers dust inlet, the higher one end in described dust mouth and described dust guiding tube 3 position interlinks, and one end that described dust inlet 4 is lower with described dust guiding tube position interlinks.
The aperture in described logical dirt hole 5 is (0.5-2) mm.
The lower end of described blackboard is provided with projection 7, and described projection 7 is provided with through hole bar 8, and described through hole bar 8 can be inserted in described logical dirt hole 5.
The storage dirt area inner wall of described dust catcher 2 is provided with touch sensor 9, described dust guiding tube 3 is provided with electronic valve 10.
After using conventional blackboard eraser to wipe the chalk dust in blackboard 1, start the dust catcher 2 of the present embodiment, in blackboard 1, remaining chalk dust is under dust catcher 2 acts on, through logical dirt hole 5, be sucked into dust catcher 2 through trumpet-shaped dirt passage 6 of leading, realize the object that chalk dust remaining in blackboard 1 is removed.When logical dirt hole 5 occurs to block, by using the through hole bar 8 of the present embodiment, conducting is carried out to logical dirt hole 5.When the dust stored in the storage dirt region of dust catcher 2 reaches the rational height of touch sensor 9, there is signal in touch sensor 9, after electronic valve 10 Received signal strength, opens, dust is fallen into dust storage container 4 by dust guiding tube 3.
The foregoing is only the preferred embodiment that the utility model is created; do not create in order to limit the utility model; the any amendment done within all spirit of creating at the utility model and principle, equivalent to replace and improvement etc., all should be included within protection domain that the utility model creates.
Claims (4)
1., with the blackboard assembly absorbing chalk dust function, comprise blackboard, it is characterized in that: described blackboard assembly also comprises dust catcher, dust guiding tube and dust storage container; Described blackboard offers several logical dirt holes; The back side of described blackboard is provided with trumpet-shapedly leads dirt passage, described in lead the wealthyer one end of dirt access portal and be connected with the sealing backside of described blackboard, described in lead the narrower one end of dirt access portal and described dust catcher suction port be tightly connected; The lower end of described dust catcher offers dust mouth, and the upper end of described dust storage container offers dust inlet, and the higher one end in described dust mouth and described dust guiding tube position interlinks, and the lower one end of described dust inlet and described dust guiding tube position interlinks.
2. a kind of blackboard assembly with absorbing chalk dust function according to claim 1, is characterized in that: the aperture in described logical dirt hole is (0.5-2) mm.
3. a kind of blackboard assembly with absorbing chalk dust function according to claim 1, it is characterized in that: the lower end of described blackboard is provided with projection, described projection is provided with through hole bar, described through hole bar can be inserted in described logical dirt hole.
4. a kind of blackboard assembly with absorbing chalk dust function according to claim 1, is characterized in that: the storage dirt area inner wall of described dust catcher is provided with touch sensor, described dust guiding tube is provided with electronic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500399.XU CN204749634U (en) | 2015-07-09 | 2015-07-09 | Blackboard subassembly with absorb chalk dust function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500399.XU CN204749634U (en) | 2015-07-09 | 2015-07-09 | Blackboard subassembly with absorb chalk dust function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204749634U true CN204749634U (en) | 2015-11-11 |
Family
ID=54464383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500399.XU Expired - Fee Related CN204749634U (en) | 2015-07-09 | 2015-07-09 | Blackboard subassembly with absorb chalk dust function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204749634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004187A (en) * | 2016-07-30 | 2016-10-12 | 徐小茹 | Dust-free blackboard and blackboard eraser matched with blackboard |
| CN107825903A (en) * | 2017-11-13 | 2018-03-23 | 许昌市建安区第三高级中学 | One kind is gathered dust blackboard |
-
2015
- 2015-07-09 CN CN201520500399.XU patent/CN204749634U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004187A (en) * | 2016-07-30 | 2016-10-12 | 徐小茹 | Dust-free blackboard and blackboard eraser matched with blackboard |
| CN106004187B (en) * | 2016-07-30 | 2018-05-18 | 徐小茹 | A kind of no dust blackboard and matched blackboard eraser |
| CN107825903A (en) * | 2017-11-13 | 2018-03-23 | 许昌市建安区第三高级中学 | One kind is gathered dust blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20151111 Termination date: 20170709 |