CN203957664U - Chalk cutter - Google Patents
Chalk cutter Download PDFInfo
- Publication number
- CN203957664U CN203957664U CN201420408455.2U CN201420408455U CN203957664U CN 203957664 U CN203957664 U CN 203957664U CN 201420408455 U CN201420408455 U CN 201420408455U CN 203957664 U CN203957664 U CN 203957664U
- Authority
- CN
- China
- Prior art keywords
- chalk
- head
- chuck
- cutter
- trepanning
- 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
Abstract
The utility model discloses a kind of chalk cutter, described chalk cutter comprises a base, described base is provided with a base sleeve, described base is provided with an Integrated Chip cylinder, the afterbody of described Integrated Chip cylinder is provided with one first chuck, the head of described Integrated Chip cylinder is provided with one second chuck, the second described chuck is provided with a positioning round orifice, the first described chuck is provided with a trepanning, on the inwall of described trepanning, be provided with equably four locating grooves, described base sleeve runs through described trepanning, and shank runs through described base sleeve on the other hand.Chalk cutter utilization of the present utility model drives gear ring and scrapes the intermeshing of post, cuts the head of chalk simultaneously, forms fast a suitable cone, greatly facilitates writing of chalk, is particularly suitable for teacher and uses.This chalk cutter is simple in structure, easy to operate, practical.
Description
Technical field
The utility model relates to a kind of teaching aid, or rather, is a kind of chalk cutter.
Background technology
For teacher, often use chalk to carry out writing on the blackboard and write, in order to write conveniently, teacher often need to wear into taper by chalk end, while particularly writing less font.Also there is no at present a kind of apparatus that is specifically designed to chalk sharpening.
Utility model content
The utility model is mainly to solve the existing technical problem of prior art, thereby a kind of chalk cutter is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of chalk cutter, described chalk cutter comprises a base, described base is provided with a base sleeve, described base is provided with an Integrated Chip cylinder, the afterbody of described Integrated Chip cylinder is provided with one first chuck, the head of described Integrated Chip cylinder is provided with one second chuck, the second described chuck is provided with a positioning round orifice, the first described chuck is provided with a trepanning, on the inwall of described trepanning, be provided with equably four locating grooves, described base sleeve runs through described trepanning, shank runs through described base sleeve on the other hand, described handle portion comprises a handle bar, the afterbody of described handle bar is provided with a crank, the head of described handle bar is provided with a connection projection, described connection projection is provided with a pair of connecting through hole and a pair of balance stock, the head of described balance stock is provided with a balance projection, on described connecting through hole, be respectively equipped with one and scrape post, described trepanning is provided with a driving gear ring, described driving gear ring comprises a gear ring main body, the sidewall of described gear ring main body is provided with four locating flanges, described locating flange matches with described locating groove, described scrape the spiral scraper that post comprises a driving gear head and a column, described driving gear head matches with described gear ring main body, described driving gear Tou center is respectively equipped with a tooth head through hole, described tooth head through hole is connected by external rivet with described connecting through hole.
As the utility model preferred embodiment, described Integrated Chip cylinder is that transparent silica gel is made.
Chalk cutter utilization of the present utility model drives gear ring and scrapes the intermeshing of post, cuts the head of chalk simultaneously, forms fast a suitable cone, greatly facilitates writing of chalk, is particularly suitable for teacher and uses.This chalk cutter is simple in structure, easy to operate, practical.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the perspective view of chalk cutter of the present utility model;
Fig. 2 is the stereochemical structure decomposing schematic representation of the chalk cutter in Fig. 1;
Fig. 3 is the further stereochemical structure decomposing schematic representation of the chalk cutter in Fig. 2;
Fig. 4 is the further stereochemical structure decomposing schematic representation of the chalk cutter in Fig. 2, is now another visual angle;
Fig. 5 is the details enlarged diagram of the a-quadrant of the chalk cutter in Fig. 3;
Fig. 6 is the details enlarged diagram in the B region of the chalk cutter in Fig. 4;
Fig. 7 is the perspective view of the first chuck of the chalk cutter in Fig. 2;
Wherein,
1, chalk cutter; 2, base; 21, base sleeve; 3, Integrated Chip cylinder; 4, the first chuck; 41, trepanning; 42, locating groove; 5, the second chuck; 51, positioning round orifice; 6, handle portion; 61, handle bar; 62, crank; 63, connect projection; 631, connecting through hole; 64, balance stock; 65, balance projection; 7, drive gear ring; 71, gear ring main body; 72, locating flange; 8, scrape post; 81, driving gear head; 82, spiral scraper; 83, tooth head through hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
The utility model provides a kind of chalk cutter.
As shown in Figures 1 to 7, chalk cutter 1 of the present utility model comprises a base 2, this base 2 is provided with a base sleeve 21, this base 2 is provided with an Integrated Chip cylinder 3, the afterbody of this Integrated Chip cylinder 3 is provided with one first chuck 4, the head of this Integrated Chip cylinder 3 is provided with one second chuck 5, this second chuck 5 is provided with a positioning round orifice 51, this first chuck 4 is provided with a trepanning 41, on the inwall of this trepanning 41, be provided with equably four locating grooves 42, this base sleeve 21 runs through this trepanning 41, shank 6 runs through this base sleeve 21 on the other hand, this handle portion 6 comprises a handle bar 61, the afterbody of this handle bar 61 is provided with a crank 62, the head of this handle bar 61 is provided with a connection projection 63, this connection projection 63 is provided with a pair of connecting through hole 631 and a pair of balance stock 64, the head of this balance stock 64 is provided with a balance projection 65, on this connecting through hole 631, be respectively equipped with one and scrape post 8, this trepanning 41 is provided with a driving gear ring 7, this driving gear ring 7 comprises a gear ring main body 71, the sidewall of this gear ring main body 71 is provided with four locating flanges 72, this locating flange 72 matches with this locating groove 42, this scrapes the spiral scraper 82 that post 8 comprises a driving gear head 81 and a column, this driving gear head 81 matches with this gear ring main body 71, this driving gear Tou81 center is respectively equipped with a tooth head through hole 83, this tooth head through hole 83 is connected by external rivet with this connecting through hole 631.
This Integrated Chip cylinder 3 is made for transparent silica gel.
When use, user, as long as the head of chalk is inserted in positioning round orifice 51, then shakes crank 62, and the first chuck 4 is rotated, and drives gear ring 7 to rotate thereby drive.Owing to driving gear ring 7 to be meshed with scraping post 8, this cuts chalk simultaneously head to scraping post 8, forms a suitable cone fast, greatly facilitates writing of chalk, is particularly suitable for teacher and uses.
In addition, because Integrated Chip cylinder 3 is made for transparent silica gel, user can understand the number of Integrated Chip at any time, conveniently clears up.
The above, be only detailed description of the invention of the present utility model, but protection domain of the present utility model is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. a chalk cutter, it is characterized in that, described chalk cutter (1) comprises a base (2), described base (2) is provided with a base sleeve (21), described base (2) is provided with an Integrated Chip cylinder (3), the afterbody of described Integrated Chip cylinder (3) is provided with one first chuck (4), the head of described Integrated Chip cylinder (3) is provided with one second chuck (5), described the second chuck (5) is provided with a positioning round orifice (51), described the first chuck (4) is provided with a trepanning (41), on the inwall of described trepanning (41), be provided with equably four locating grooves (42), described base sleeve (21) runs through described trepanning (41), shank (6) runs through described base sleeve (21) on the other hand, described handle portion (6) comprises a handle bar (61), the afterbody of described handle bar (61) is provided with a crank (62), the head of described handle bar (61) is provided with a connection projection (63), described connection projection (63) is provided with a pair of connecting through hole (631) and a pair of balance stock (64), the head of described balance stock (64) is provided with a balance projection (65), on described connecting through hole (631), be respectively equipped with one and scrape post (8), described trepanning (41) is provided with a driving gear ring (7), described driving gear ring (7) comprises a gear ring main body (71), the sidewall of described gear ring main body (71) is provided with four locating flanges (72), described locating flange (72) matches with described locating groove (42), described scrape the spiral scraper (82) that post (8) comprises a driving gear head (81) and a column, described driving gear head (81) matches with described gear ring main body (71), the center of described driving gear head (81) is respectively equipped with a tooth head through hole (83), described tooth head through hole (83) is connected by external rivet with described connecting through hole (631).
2. chalk cutter according to claim 1, is characterized in that, described Integrated Chip cylinder (3) is made for transparent silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408455.2U CN203957664U (en) | 2014-07-23 | 2014-07-23 | Chalk cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408455.2U CN203957664U (en) | 2014-07-23 | 2014-07-23 | Chalk cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203957664U true CN203957664U (en) | 2014-11-26 |
Family
ID=51918294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420408455.2U Expired - Fee Related CN203957664U (en) | 2014-07-23 | 2014-07-23 | Chalk cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203957664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562770A (en) * | 2016-01-17 | 2016-05-11 | 大连工业大学 | Penholder drill |
| CN106394082A (en) * | 2016-11-17 | 2017-02-15 | 新乡学院 | Universal teaching aid |
-
2014
- 2014-07-23 CN CN201420408455.2U patent/CN203957664U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562770A (en) * | 2016-01-17 | 2016-05-11 | 大连工业大学 | Penholder drill |
| CN105562770B (en) * | 2016-01-17 | 2017-11-07 | 大连工业大学 | A kind of penholder is bored |
| CN106394082A (en) * | 2016-11-17 | 2017-02-15 | 新乡学院 | Universal teaching aid |
| CN106394082B (en) * | 2016-11-17 | 2017-11-24 | 嵊州北航投星空众创科技有限公司 | A kind of general teaching aid |
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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: 20141126 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |