CN202557013U - A magnetic chalk sheath - Google Patents
A magnetic chalk sheath Download PDFInfo
- Publication number
- CN202557013U CN202557013U CN2012201396498U CN201220139649U CN202557013U CN 202557013 U CN202557013 U CN 202557013U CN 2012201396498 U CN2012201396498 U CN 2012201396498U CN 201220139649 U CN201220139649 U CN 201220139649U CN 202557013 U CN202557013 U CN 202557013U
- Authority
- CN
- China
- Prior art keywords
- chalk
- seat
- magnetic
- sleeve
- sleeve pipe
- 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 magnetic chalk sheath, which comprises a sleeve and a chalk seat, wherein the sleeve is a cylinder with a bottom at one end, and is fitted over the chalk seat, the wall of the sleeve is provided with a continuous Z-shaped hollow groove from top to bottom, the chalk seat is a round seat set in the sleeve, the seat comprises a bottom surface and a circumferential wall, the external surface of the circumferential wall is provided with a protrusion, the sleeve has magnetic property, the protrusion is made of metal, the size of the protrusion matches the width of the hollow groove on the sleeve wall, the height of the protrusion is larger than the distance from the external surface of the circumferential wall of the chalk seat to the external surface of the sleeve wall. An anti-sliding part is set at outer side of the sleeve, and the shape of the anti-sliding part is two corresponding elliptic shapes suitable for finger contacting, and the anti-sliding part is made of rubber, and the inside diameter of the chalk seat matches the diameter of the bottom surface of the chalk. The magnetic chalk sheath provided by the utility model can be fitted over the chalk, and is simple in structure and convenient in use, is clean, and facilitates holding and writing.
Description
Technical field
The utility model relates to a kind of chalk sleeve, particularly, relates to a kind of magnetic chalk cover.
Background technology
At present, chalk remains a large amount of stationery that use of quilt in the teaching process, and the deficiency of its existence also clearly, and is big such as the finger skin damage to user such as teacher etc.; Chalk dust flies upward everywhere, is unfavorable for environmental sanitation; Used more than half back just to be difficult to hold, the chalk of remaining end have to be thrown away etc.
The chalk sleeve that existing cooperation chalk uses, generally also all have structure comparatively complicated, shortcoming such as should not place.
The utility model content
The purpose of the utility model provides a kind of device that is used to cooperate the chalk use, is placed on outside the chalk, and is simple in structure, convenient easy-to-use.
In order to achieve the above object, the utility model provides a kind of magnetic chalk cover, and wherein, this chalk sleeve comprises sleeve pipe and chalk seat; Described sleeve pipe is the pipe that an end has the end, is nested with outside the chalk seat; Described casing wall is provided with a continuous Z-shaped hollow slots from top to bottom, and the tail end place of this hollow slots and head end place all are translot; Described chalk seat is the cup dolly that is nested with in described sleeve pipe, and this base comprises bottom surface and a circle wall; The outer surface of described circle wall is provided with a convexity.
Above-mentioned magnetic chalk cover, wherein, described sleeve pipe has magnetic.
Above-mentioned magnetic chalk cover, wherein, described convexity is a metal system, is preferably box-shaped.
Above-mentioned magnetic chalk cover, wherein, the groove width of hollow slots institute hollow out is suitable on the size of described convexity and the described casing wall.
Above-mentioned magnetic chalk cover, wherein, the protrusion height of described convexity is greater than the distance of described chalk seat outer surface to said casing wall outer surface.When the chalk seat placed in the sleeve pipe, this convexity can be outside hollow slots be exposed sleeve pipe, and can rise along the skewed slot place of this continuous Z-shaped hollow slots, be stuck in the translot place afterwards, and was difficult for sliding because of magnet suction.
Above-mentioned magnetic chalk cover, wherein, described outside of sleeve is provided with anti-skidding place, and shape can be preferably the ellipse of two correspondences that are fit to the finger contact, and material is preferably rubber.
Above-mentioned magnetic chalk cover, wherein, described chalk seat internal diameter and chalk bottom surface diameter are suitable.
The magnetic chalk cover that the utility model provides has the following advantages:
Chalk is put into the chalk seat, is placed sleeve pipe, makes needn't directly to contact chalk when writing, and can not burn hand and also can not get full chalk ash, chalk frangible not in the time of can also guaranteeing to write.
After a chalk uses up, can replace next root immediately, be simple and easy to use.
Bushing outer surface is provided with anti-skidding place, is convenient to finger grip.
The hollow slots of convexity on the chalk seat from casing wall exposed outside the casing wall, promotes the protruding chalk seat drive chalk of inside that can make and moves up along continuous Z-shaped hollow slots, makes the top of chalk be positioned at all the time outside the sleeve pipe, is convenient to write.
Protruding can the rising along the skewed slot place of continuous Z-shaped hollow slots, and be stuck in the translot place, because of magnet suction is difficult for sliding.
Sleeve pipe has magnetic, when chalk is obsolete, can it subsides be placed on blackboard edge etc. and locate, and is clean and tidy convenient.
This chalk sleeve is simple in structure, and handling ease is convenient to volume production.
Description of drawings
Fig. 1 is the magnetic chalk cover sketch map of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done explanation further.
Magnetic chalk cover as shown in Figure 1, that the utility model provides comprises sleeve pipe 1 and chalk seat 2; Sleeve pipe 1 is the pipe that an end has the end, is nested with outside chalk seat 2; Sleeve pipe 1 wall is provided with a continuous Z-shaped hollow slots 11 from top to bottom, and the tail end place of this hollow slots 11 and head end place all are translot; Chalk seat 2 is for being arranged on the cup dolly in the sleeve pipe 1, and this base comprises bottom surface and a circle wall; The outer surface of circle wall is provided with a convexity 21.
Sleeve pipe 1 has magnetic.
Protruding 21 is metal system, is shaped as box-shaped.
The groove width of 11 hollow outs of hollow slots is suitable on protruding 21 size and sleeve pipe 1 wall.
Protruding 21 protrusion height is greater than the outer surface of the chalk seat 2 circle wall distance to the outer surface of sleeve pipe 1 wall.When chalk seat 2 placed in the sleeve pipe 1, this convexity 21 can be outside hollow slots 11 be exposed sleeve pipe 1, and can rise along the skewed slot place of this continuous Z-shaped hollow slots, be stuck in the translot place afterwards, and was difficult for sliding because of magnet suction.
Sleeve pipe 1 outside is provided with anti-skidding place 12, and it is shaped as the ellipse of two correspondences that are fit to the finger contact, and material is a rubber.
The magnetic chalk cover that the utility model provides; Chalk 3 is put into chalk seat 2, placed sleeve pipe 1; The bottom end position of the hollow slots 11 of the convexity 21 on the chalk seat 2 from casing wall 1 exposes outside sleeve pipe 1 wall; Promote protruding 21 inner chalk seat 2 drive chalks 3 are moved up along continuous Z-shaped hollow slots 11, make the top of chalk 3 be positioned at all the time outside the sleeve pipe 1.Sleeve pipe 1 has magnetic, when chalk 3 is obsolete, can it subsides be placed on blackboard edge etc. and locate.Sleeve pipe 1 outer surface is provided with anti-skidding place 12, is convenient to finger grip.This chalk sleeve is simple in structure, and handling ease is convenient to volume production.
Although the content of the utility model has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to the restriction to the utility model.After those skilled in the art have read foregoing, for the multiple modification of the utility model with to substitute all will be conspicuous.Therefore, the protection domain of the utility model should be limited appended claim.
Claims (7)
1. a magnetic chalk cover is characterized in that, this chalk sleeve comprises sleeve pipe (1) and chalk seat (2);
Described sleeve pipe (1) is the pipe that an end has the end, is nested with outside chalk seat (2); Described sleeve pipe (1) wall is provided with a continuous Z-shaped hollow slots (11) from top to bottom;
Described chalk seat (2) is a cup dolly, and this base comprises bottom surface and a circle wall;
The outer surface of described circle wall is provided with a convexity (21).
2. magnetic chalk cover as claimed in claim 1 is characterized in that, described sleeve pipe (1) has magnetic.
3. magnetic chalk cover as claimed in claim 1 is characterized in that, described convexity (21) is a metal derby.
4. magnetic chalk cover as claimed in claim 3 is characterized in that, the groove width of hollow slots (11) is suitable on the size of described convexity (21) and described sleeve pipe (1) wall.
5. magnetic chalk cover as claimed in claim 3 is characterized in that, the protrusion height of described convexity (21) arrives the distance of said sleeve pipe (1) wall outer surface greater than the outer surface of said chalk seat (2) circle wall.
6. magnetic chalk cover as claimed in claim 1 is characterized in that, described sleeve pipe (1) outside is provided with anti-skidding place (12).
7. magnetic chalk cover as claimed in claim 1 is characterized in that, described chalk seat (2) internal diameter and chalk bottom surface diameter are suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201396498U CN202557013U (en) | 2012-04-05 | 2012-04-05 | A magnetic chalk sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201396498U CN202557013U (en) | 2012-04-05 | 2012-04-05 | A magnetic chalk sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557013U true CN202557013U (en) | 2012-11-28 |
Family
ID=47206707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201396498U Expired - Fee Related CN202557013U (en) | 2012-04-05 | 2012-04-05 | A magnetic chalk sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014771A (en) * | 2019-04-19 | 2019-07-16 | 杭州简弈科技有限公司 | A kind of torsion detent pen |
| CN111959156A (en) * | 2020-08-14 | 2020-11-20 | 安徽信息工程学院 | Auxiliary mechanism for chalk |
-
2012
- 2012-04-05 CN CN2012201396498U patent/CN202557013U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014771A (en) * | 2019-04-19 | 2019-07-16 | 杭州简弈科技有限公司 | A kind of torsion detent pen |
| CN110014771B (en) * | 2019-04-19 | 2020-01-07 | 潘晓丹 | Twist reverse screens pen |
| CN111959156A (en) * | 2020-08-14 | 2020-11-20 | 安徽信息工程学院 | Auxiliary mechanism for chalk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130405 |