CN204605334U - A kind of chalk cutter - Google Patents
A kind of chalk cutter Download PDFInfo
- Publication number
- CN204605334U CN204605334U CN201520332009.2U CN201520332009U CN204605334U CN 204605334 U CN204605334 U CN 204605334U CN 201520332009 U CN201520332009 U CN 201520332009U CN 204605334 U CN204605334 U CN 204605334U
- Authority
- CN
- China
- Prior art keywords
- chalk
- dust
- hole
- collecting cavity
- bite
- 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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- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model discloses a kind of chalk cutter, comprise a transparent watertight material base, a conical chalk hole is provided with in described base, the downward-sloping 20-45 degree in described chalk hole, described base upper surface has scale along conical bore axle center, and on the hole wall in described chalk hole, respectively there is a bite on symmetrical both sides, and the length direction of the blade of described bite parallels with the hole wall direction in chalk hole, described have dust-collecting cavity after bite, and described dust-collecting cavity sidewall has apopore.The beneficial effects of the utility model are: 1) structure is simple, easy to operate 2) thickness of chalk can be controlled in real time by the scale on transparent base surface, thus meet the multiple teaching request 3 of teacher) after dust-collecting cavity is full of dust, open dust-collecting cavity sidewall apopore stopper, water is injected from conical chalk hole, dust is gone out, causes when avoiding process dust and fly upward, contaminated environment.
Description
Technical field
The present invention relates to environmental protection realia field, be specifically related to a kind of chalk cutter.
Background technology
Chalk is a kind of teaching tool, is absolutely necessary in daily teaching.At present in teaching, teacher directly uses chalk, but teacher writes on blackboard, need the chalk of different thicknesses when drawing.Chalk used is at present all unified specification, and teacher is very inconvenient in use.Although there are some utensils to cut chalk, device is too complicated, and specifically can not control the thickness of chalk, brings inconvenience to the teaching of teacher.
Summary of the invention
The purpose of this utility model is to provide a kind of chalk cutter, to overcome the defect that prior art exists.For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of chalk cutter, described chalk cutter comprises a transparent watertight material base, a conical chalk hole is provided with in described base, the downward-sloping 20-45 degree in described chalk hole, described base upper surface has scale along conical bore axle center, and on the hole wall in described chalk hole, respectively there is a bite on symmetrical both sides, and the length direction of the blade of described bite parallels with the hole wall direction in chalk hole, described have dust-collecting cavity after bite, and described dust-collecting cavity sidewall has apopore.
Furthermore, described in technique scheme, a transparent watertight material base, can be hard transparent plastic.
Furthermore, described in technique scheme, apopore has plug closes.
The beneficial effects of the utility model are: 1) structure is simple, easy to operate 2) thickness of chalk can be controlled in real time by the scale of transparent base upper surface, thus meet the multiple teaching request 3 of teacher) after dust-collecting cavity is full of dust, open dust-collecting cavity sidewall apopore stopper, water is injected from conical chalk hole, dust is gone out, causes when avoiding process dust and fly upward, contaminated environment.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 be the utility model chalk cutter overlook cross-sectional schematic;
Fig. 2 is the utility model chalk cutter side schematic view
In figure, 1 is base, and 2 is conical bore, and 3 is dust-collecting cavity, and 4 is apopore, and 5 is scale, and 6 is bite
detailed description of the invention:
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the various different modes that the utility model can be limited by claim and cover are implemented.
According to Fig. 1 and Fig. 2, chalk is put in the conical bore 2 of chalk cutter, a hand presses base 1, another hand-screw turns chalk, under the effect of bite 6, the different cutting needed is completed according to cutter base 1 upper surface scale 5, due to the downward-sloping 20-45 degree of conical bore, along with the working angles of chalk, dust slips in dust-collecting cavity 3, when after the working angles completing chalk, open the stopper of dust-collecting cavity 3 sidewall apopore 4, water is injected from conical bore 2, dust is wetted to be poured sewer from apopore along with current, thus remove the operation of dismounting from, it also avoid simultaneously and again cause dust from flying when processing dust, contaminated environment.
Claims (3)
1. a chalk cutter, it is characterized in that: comprise a transparent watertight material base (1), a conical chalk hole (2) is provided with in described base (1), the downward-sloping 20-45 degree of described chalk hole (2), described base (1) upper surface has scale (5) along conical chalk hole (2) axle center, on the hole wall of described chalk hole (2), respectively there is a bite (6) on symmetrical both sides, the length direction of the blade of described bite (6) parallels with the hole wall direction of chalk hole (2), described have dust-collecting cavity (3) below at bite (6), described dust-collecting cavity sidewall has apopore (4).
2. a kind of chalk cutter according to claim 1, is characterized in that: a described transparent watertight material base (1) can be hard transparent plastic.
3. a kind of chalk cutter according to claim 1, is characterized in that: described apopore (4) has plug closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520332009.2U CN204605334U (en) | 2015-05-22 | 2015-05-22 | A kind of chalk cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520332009.2U CN204605334U (en) | 2015-05-22 | 2015-05-22 | A kind of chalk cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204605334U true CN204605334U (en) | 2015-09-02 |
Family
ID=53957912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520332009.2U Expired - Fee Related CN204605334U (en) | 2015-05-22 | 2015-05-22 | A kind of chalk cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204605334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938580A (en) * | 2016-10-11 | 2017-07-11 | 义乌市鼎邦文体用品有限公司 | Cut the penknife structure and penknife of sketch pencil |
-
2015
- 2015-05-22 CN CN201520332009.2U patent/CN204605334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938580A (en) * | 2016-10-11 | 2017-07-11 | 义乌市鼎邦文体用品有限公司 | Cut the penknife structure and penknife of sketch pencil |
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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: 20150902 Termination date: 20170522 |