CN204955864U - Multifunctional blackboard eraser - Google Patents
Multifunctional blackboard eraser Download PDFInfo
- Publication number
- CN204955864U CN204955864U CN201520619281.9U CN201520619281U CN204955864U CN 204955864 U CN204955864 U CN 204955864U CN 201520619281 U CN201520619281 U CN 201520619281U CN 204955864 U CN204955864 U CN 204955864U
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- CN
- China
- Prior art keywords
- noumenon
- blackboard eraser
- rotating shaft
- electromagnet
- multifunctional blackboard
- 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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Abstract
The utility model discloses a multifunctional blackboard eraser, but this blackboard eraser all is equipped with the brush hair including the first body and the second body of alternate segregation on this first body and the second body bottom surface, this first body bottom is equipped with first gyro wheel, and this second body bottom is equipped with the second gyro wheel, and this first body goes up and this second body junction is equipped with a magnetic element, is equipped with the 2nd magnetic element who inhales mutually with a magnetic element magnetism with this first body junction on this second body, this second body is the cavity column structure, and this internally is equipped with first pivot this second, around being equipped with first tape measure in this first pivot, in this first pivot still the cover be equipped with a spiral spring, the chalk of protractile in this first body bottom set firmly bottom zero graduation end and this first body fixed connection of this first tape measure, this first body. Use the utility model discloses a blackboard eraser, user's line of corresponding length that can draw up as required.
Description
Technical field
The utility model relates to a kind of blackboard eraser, more particularly, relates to a kind of multifunctional blackboard eraser.
Background technology
In existing teaching aid, blackboard eraser and ruler are modal teaching aids, but in the two, blackboard eraser can only be used for erasing the board, and ruler can only be used for auxiliary setting-out, the function singleness of its single apparatus, can not meet needed for modern teaching.
Utility model content
The technical problems to be solved in the utility model is, for the above-mentioned defect of prior art, provides a kind of multifunctional blackboard eraser.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of multifunctional blackboard eraser, this blackboard eraser comprises the first noumenon and the second body that can be separated from each other, this the first noumenon and the second body bottom surface are equipped with bristle, the first roller is provided with bottom this first noumenon, this second body bottom portion is provided with the second roller, this the first noumenon is provided with the first magnetic element with this second body junction, this second body is provided with second magnetic element attracting with this first magnetic element magnetic with this first noumenon junction; This second body is hollow form structure, the first rotating shaft is provided with in this second body, this first rotating shaft is arranged with the first tape measure, this first rotating shaft is also arranged with the first scroll spring, the zero mark end of this first tape measure is fixedly connected with this first noumenon, is installed with extended chalk bottom this first noumenon bottom this first noumenon.
In multifunctional blackboard eraser described in the utility model, the sleeve for sheathed chalk is provided with in this first noumenon, this sleeve top is provided with magnetic metal, this the first noumenon top inner wall is provided with electromagnet, this electromagnet is positioned at directly over this magnetic metal, and this electromagnet is connected by spring with this magnetic metal.
In multifunctional blackboard eraser described in the utility model, this first noumenon base plate is provided with the through hole passed for this chalk, and this first noumenon is provided with the gauge tap controlling this electromagnet and open or close.
In multifunctional blackboard eraser described in the utility model, this the first noumenon is also hollow form structure, the second rotating shaft is provided with in this first noumenon, this zero mark end is fixedly connected with this second rotating shaft and is set around in this second rotating shaft, this second rotating shaft is provided with worm screw, the worm gear coordinated with this worm screw is provided with in this first noumenon, this worm gear is rotatably connected by the 3rd rotating shaft and this first noumenon inwall, 3rd rotating shaft is also installed with the gear coaxial with this worm gear, also be provided with in this first noumenon and can slide up and down in this first noumenon and the tooth bar coordinated with this gear, this tooth bar upper end is provided with the first sheet metal, this electromagnet side is provided with the second sheet metal contacted with this first sheet metal.
In multifunctional blackboard eraser described in the utility model, the end that this first noumenon is connected with this second body is provided with RF transmitter, and in this second body end, the position corresponding to this RF transmitter is provided with calibration point.
In multifunctional blackboard eraser described in the utility model, this first roller and the second roller are respectively by retractable stand and this first noumenon and the second body is collapsible is connected.
Implement multifunctional blackboard eraser of the present utility model, there is following beneficial effect: when using blackboard eraser of the present utility model, first the first roller and the second roller are propped, then the first noumenon and the second body are separated, chalk is fixed on bottom the first noumenon, then elongate the length of the first tape measure as required, then use hand propelled the first noumenon close to the second body, the line of corresponding length can be drawn.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model multifunctional blackboard eraser.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, in multifunctional blackboard eraser first embodiment of the present utility model, this blackboard eraser 1 comprises the first noumenon 2 and the second body 3 that can be separated from each other, this the first noumenon 2 and the second body 3 bottom surface are equipped with bristle 4, the first roller 5 is provided with bottom this first noumenon 2, the second roller 6 is provided with bottom this second body 3, this the first noumenon 2 is provided with the first magnetic element 7 with this second body 3 junction, this second body 3 is provided with second magnetic element 8 attracting with this first magnetic element 7 magnetic with this first noumenon 2 junction; This second body 3 is hollow form structure, the first rotating shaft 9 is provided with in this second body 3, this first rotating shaft 9 is arranged with the first tape measure 10, this first rotating shaft 9 is also arranged with the first scroll spring 15, the zero mark end 17 of this first tape measure 10 is fixedly connected with this first noumenon 2, is installed with extended chalk 11 bottom this first noumenon 2 bottom this first noumenon 2.
Preferably, this first roller 5 and the second roller 6 are respectively by retractable stand 24 and this first noumenon 2 with the second body 3 is collapsible is connected.
When using blackboard eraser 1 of the present utility model, first the first roller 5 and the second roller 6 are propped, then the first noumenon 2 and the second body 3 are separated, chalk 11 is fixed on bottom the first noumenon 2, then the length of the first tape measure 10 is elongated as required, then use hand propelled the first noumenon 2 close to the second body 3, the line of corresponding length can be drawn.
Further, this first roller 5 and the second roller 6 are the roller only in a direction rolled.
Further, the sleeve 12 for sheathed chalk 11 is provided with in this first noumenon 2, this sleeve 12 top is provided with magnetic metal 13, this the first noumenon 2 top inner wall is provided with electromagnet 14, this electromagnet 14 is positioned at directly over this magnetic metal 13, and this electromagnet 14 is connected by spring 15 elasticity with this magnetic metal 13.
Further, this first noumenon 2 base plate is provided with the through hole passed for this chalk 11, and this first noumenon 2 is provided with the gauge tap controlling this electromagnet 14 and open or close.
Further, this the first noumenon 2 is also hollow form structure, the second rotating shaft is provided with in this first noumenon 2, this zero mark end 17 is fixedly connected with this second rotating shaft and is set around in this second rotating shaft, this second rotating shaft is provided with worm screw 18, the worm gear 19 coordinated with this worm screw 18 is provided with in this first noumenon 2, this worm gear 19 is rotatably connected with this first noumenon 2 inwall by the 3rd rotating shaft 16, 3rd rotating shaft 16 is also installed with the gear 20 coaxial with this worm gear 19, also be provided with in this first noumenon 2 and can slide up and down in this first noumenon 2 and the tooth bar 21 coordinated with this gear 20, this tooth bar 21 upper end is provided with the first sheet metal 22, this electromagnet 14 side is provided with the second sheet metal 23 contacted with this first sheet metal 22.This first sheet metal 22 is electrically connected with a pole of power supply, this second sheet metal 23 is electrically connected with another pole of power supply.
Further, the end that this first noumenon 2 is connected with this second body 3 is provided with RF transmitter, and on this second body 3 end, the position corresponding to this RF transmitter is provided with calibration point.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a multifunctional blackboard eraser, it is characterized in that, described blackboard eraser comprises the first noumenon and the second body that can be separated from each other, described the first noumenon and the second body bottom surface are equipped with bristle, the first roller is provided with bottom described the first noumenon, described second body bottom portion is provided with the second roller, described the first noumenon is provided with the first magnetic element with described second body junction, described second body is provided with second magnetic element attracting with described first magnetic element magnetic with described the first noumenon junction; Described second body is hollow form structure, the first rotating shaft is provided with in described second body, described first rotating shaft is arranged with the first tape measure, described first rotating shaft is also arranged with the first scroll spring, the zero mark end of described first tape measure is fixedly connected with described the first noumenon, is installed with extended chalk bottom described the first noumenon bottom described the first noumenon.
2. multifunctional blackboard eraser according to claim 1, it is characterized in that, the sleeve for sheathed chalk is provided with in described the first noumenon, described sleeve top is provided with magnetic metal, described the first noumenon top inner wall is provided with electromagnet, described electromagnet is positioned at directly over described magnetic metal, and described electromagnet is connected by spring with described magnetic metal.
3. multifunctional blackboard eraser according to claim 2, is characterized in that, described the first noumenon base plate is provided with the through hole passed for described chalk, and described the first noumenon is provided with the gauge tap controlling described electromagnet and open or close.
4. multifunctional blackboard eraser according to claim 2, it is characterized in that, described the first noumenon is also hollow form structure, the second rotating shaft is provided with in described the first noumenon, described zero mark end is fixedly connected with described second rotating shaft and is set around in described second rotating shaft, described second rotating shaft is provided with worm screw, the worm gear coordinated with described worm screw is provided with in described the first noumenon, described worm gear is rotatably connected by the 3rd rotating shaft and described the first noumenon inwall, described 3rd rotating shaft is also installed with the gear coaxial with described worm gear, also be provided with in described the first noumenon and can slide up and down in described the first noumenon and the tooth bar coordinated with described gear, described tooth bar upper end is provided with the first sheet metal, described electromagnet side is provided with the second sheet metal contacted with described first sheet metal.
5. multifunctional blackboard eraser according to claim 1, it is characterized in that, the end that described the first noumenon is connected with described second body is provided with RF transmitter, and in described second body end, the position corresponding to described RF transmitter is provided with calibration point.
6. multifunctional blackboard eraser according to claim 1, is characterized in that, described first roller and the second roller are respectively by retractable stand and described the first noumenon and the second body is collapsible is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619281.9U CN204955864U (en) | 2015-08-18 | 2015-08-18 | Multifunctional blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619281.9U CN204955864U (en) | 2015-08-18 | 2015-08-18 | Multifunctional blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204955864U true CN204955864U (en) | 2016-01-13 |
Family
ID=55050952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520619281.9U Expired - Fee Related CN204955864U (en) | 2015-08-18 | 2015-08-18 | Multifunctional blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204955864U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583093A (en) * | 2018-06-28 | 2018-09-28 | 潘明河 | A kind of blackboard eraser with dedusting function |
| CN110001251A (en) * | 2019-03-18 | 2019-07-12 | 戴巍 | A kind of junior-senior high school blackboard eraser for teaching convenient for improving efficiency |
-
2015
- 2015-08-18 CN CN201520619281.9U patent/CN204955864U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583093A (en) * | 2018-06-28 | 2018-09-28 | 潘明河 | A kind of blackboard eraser with dedusting function |
| CN110001251A (en) * | 2019-03-18 | 2019-07-12 | 戴巍 | A kind of junior-senior high school blackboard eraser for teaching convenient for improving efficiency |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160818 |