CN106042721A - Chalk cover - Google Patents
Chalk cover Download PDFInfo
- Publication number
- CN106042721A CN106042721A CN201610448216.3A CN201610448216A CN106042721A CN 106042721 A CN106042721 A CN 106042721A CN 201610448216 A CN201610448216 A CN 201610448216A CN 106042721 A CN106042721 A CN 106042721A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- chalk
- inner sleeve
- shaped groove
- outer sleeve
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/016—Holders for crayons or chalks
Landscapes
- Toys (AREA)
Abstract
The invention belongs to the technical field of education supplies, and particularly relates to a chalk cover. The chalk cover comprises an outer sleeve. An inner sleeve is arranged inside the outer sleeve. One end of each of the outer sleeve and the inner sleeve is closed, and the other end of each of the outer sleeve and the inner sleeve is opened. A spring is arranged between the outer sleeve and the inner sleeve. A strip-shaped groove and a plurality of L-shaped grooves communicating with the strip-shaped groove are formed in the side wall of the outer sleeve. The L-shaped grooves incline upwards. The included angle between each L-shaped groove and the strip-shaped groove is smaller than 90 degrees. A movable rod capable of sliding between the strip-shaped groove and each L-shaped groove is arranged on the outer wall of the inner sleeve. The chalk cover is simple in structure and reasonable in design, comfort and smoothness are achieved during writing, chalk can be fully utilized, and hand contamination due to chalk dust cannot be caused.
Description
Technical field
The invention belongs to realia technical field, be specifically related to a kind of chalk sleeve.
Background technology
The method of the chalk of traditional use is that the shortcoming of this use chalk method is directly by hand held for chalk:
1, chalk directly contacts with hands and chalk dust can be caused to pollute hands；2, chalk uses certain length to shorten the feelings cannot held with hands
Under condition be the such residual chalk end that cannot re-use be a kind of waste.
Summary of the invention
The technical problem to be solved is to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of chalk sleeve, its knot
Structure is reasonable in design, can make full use of chalk and chalk dust can't be caused to pollute hands.
A kind of chalk sleeve, including outer sleeve, described outer sleeve is built-in with inner sleeve, and described outer sleeve and inner sleeve are all one
It is open that end seal closes the other end, is provided with spring between described outer sleeve and inner sleeve；The sidewall of described outer sleeve is provided with a bar shaped
Groove and several L-shaped grooves in communication, described L-shaped groove slant upwards, between described L-shaped groove and strip groove
Angle ＜ 90 °, the outer wall of described inner sleeve is provided with the mobile bar that can slide between strip groove and L-shaped groove.
Preferably, it is provided with rubber inner sleeve in described inner sleeve, in described rubber inner sleeve, is inserted with chalk.
Further, length≤1 cm of described rubber inner sleeve.
Preferably, length≤0.5 cm of described rubber inner sleeve.
Preferably, the top of described mobile bar is provided with catch.
The Advantageous Effects of the present invention: chalk is embedded there is difficult drop-off in gum elastic inner sleeve；By spring, bar
Connected in star and in communication and several L-shaped grooves of angle≤90 °, the propelling of chalk during convenient use, and chalk is not
Understand resilience or too lean out；Within inner sleeve is arranged at outer sleeve, therefore when writing, the length of chalk sleeve fried rice noodles pen will not
Change, thus without because chalk is long or too short causing writes discomfort；Some cannot directly be held with remaining
Chalk end also can be embedded being continuing with, and has saved resource.Therefore, present configuration is simple, reasonable in design, comfortable writing stream
Freely, and chalk can be made full use of can't cause chalk dust pollute hands.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention；Fig. 2 is the left view of Fig. 1；Reference: 1, outer sleeve；2, inner sleeve；
3, spring；4, strip groove；5, L-shaped groove；6, bar is moved；7, catch；8, rubber inner sleeve；9, chalk.
Detailed description of the invention
As shown in Figure 1 and 2, a kind of chalk sleeve, including outer sleeve 1, described outer sleeve 1 is built-in with inner sleeve 2, described overcoat
Cylinder 1 and inner sleeve 2 are all that one end closing other end is open, are provided with spring 3 between described outer sleeve 1 and inner sleeve 2.Described overcoat
The sidewall of cylinder 1 is provided with a strip groove 4 and several L-shaped grooves 5 in communication, and described L-shaped groove 5 tilts upward, institute
State the angle ＜ 90 ° between L-shaped groove 5 and strip groove 4, the outer wall of described inner sleeve 2 be provided with can strip groove 4 with
The mobile bar 6 slided between L-shaped groove 5, the L-shaped putting mobile bar 6 under lower end one lattice along the mobile bar 6 of strip groove 4 downslide is recessed
The lower end of groove 5, now, if not using, because it is moved down by the lower end of L-shaped groove 5 has barrier effect, chalk 9 will not
Moving down, in use, pressure makes to move on on mobile bar 6 top of L-shaped groove 5, because between L-shaped groove 5 and strip groove 4
Angle ＜ 90 °, mobile bar 6 can not slide back to strip groove 4 automatically, and therefore, this design has played the most fixing chalk position
Effect.It is provided with catch 7 on the top of described mobile bar 6, need not direct hand pressure during the mobile bar 6 of slip and move the top of bar 6, more
The design of the catch 7 of high surface area reduces the pressure that hands touches, thus without causing finger tip pain, more comfortable.Described inner sleeve
It is provided with rubber inner sleeve 8, length≤1 cm of described rubber inner sleeve 8 in cylinder 2, in described rubber inner sleeve 8, is inserted with chalk 9, in rubber
The inwall of set 8 itself is the most flexible, therefore facilitates chalk 9 to hold tighter, does not easily cause chalk 9 Automatic-falling.
As different from Example 1, length≤0.5 cm of described rubber inner sleeve 8, this Design of length is ensureing that chalk 9 presss from both sides
On the basis of Jin, promote that chalk end uses is more abundant.
Invention described above embodiment, is not intended that limiting the scope of the present invention, any in the present invention
Spirit and principle within amendment, equivalent and the improvement etc. made, should be included in the claim protection model of the present invention
Within enclosing.
Claims (5)
1. a chalk sleeve, including outer sleeve, it is characterised in that: described outer sleeve is built-in with inner sleeve, described outer sleeve and interior
Sleeve is all that one end closing other end is open, is provided with spring between described outer sleeve and inner sleeve；On the sidewall of described outer sleeve
Be provided with a strip groove and several L-shaped grooves in communication, described L-shaped groove slant upwards, described L-shaped groove and bar shaped
Angle ＜ between groove 90 °, the outer wall of described inner sleeve is provided with the shifting can slided between strip groove and L-shaped groove
Lever.
Chalk sleeve the most according to claim 1, it is characterised in that: it is provided with rubber inner sleeve, described rubber in described inner sleeve
Chalk it is inserted with in inner sleeve.
Chalk sleeve the most according to claim 1, it is characterised in that: length≤1 cm of described rubber inner sleeve.
Chalk sleeve the most according to claim 1, it is characterised in that: length≤0.5 cm of described rubber inner sleeve.
Chalk sleeve the most according to claim 1, it is characterised in that: the top of described mobile bar is provided with catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610448216.3A CN106042721A (en) | 2016-06-21 | 2016-06-21 | Chalk cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610448216.3A CN106042721A (en) | 2016-06-21 | 2016-06-21 | Chalk cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106042721A true CN106042721A (en) | 2016-10-26 |
Family
ID=57168548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610448216.3A Pending CN106042721A (en) | 2016-06-21 | 2016-06-21 | Chalk cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106042721A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2277905A (en) * | 1993-05-11 | 1994-11-16 | Grogan John J | Sleeve for chalk |
| DE202005014672U1 (en) * | 2005-06-10 | 2005-11-24 | Morocolor Italia S.P.A. | Writing, painting or drawing means for wax crayons, chalk or leads has cylindrical sleeve with longitudinal slot and number of recesses for engaging of cursor which acts upon element for writing |
| CN201102388Y (en) * | 2007-11-19 | 2008-08-20 | 王蓓 | Chalk cover with blackboard eraser |
| CN201154601Y (en) * | 2007-07-07 | 2008-11-26 | 王雪松 | Hand chalk holder for continuous use |
| CN201385492Y (en) * | 2009-02-16 | 2010-01-20 | 王淮勇 | Multifunctional chalk sleeve |
| CN201580115U (en) * | 2009-12-30 | 2010-09-15 | 马继合 | Sanitary chalk sleeve |
| CN201941336U (en) * | 2010-10-27 | 2011-08-24 | 上海市青浦区实验中学 | Adjustable chalk jacket |
| CN202623640U (en) * | 2012-05-23 | 2012-12-26 | 德州市第二中学 | Hand-protection chalk sleeve |
| CN202656688U (en) * | 2012-06-22 | 2013-01-09 | 卢晓玲 | Chalk sleeve for teaching |
| CN203666173U (en) * | 2014-01-10 | 2014-06-25 | 北华航天工业学院 | Multipurpose chalk clamping bar |
| CN203957617U (en) * | 2014-07-23 | 2014-11-26 | 房媛 | Chalk fixator |
| CN204172541U (en) * | 2014-10-31 | 2015-02-25 | 邢台市开发区北园中学 | A kind of chalk clamping device for middle school teaching |
| CN204567004U (en) * | 2015-03-25 | 2015-08-19 | 贵州电子信息职业技术学院 | A kind of portable environmental-protection Multifunctional chalk clamp |
-
2016
- 2016-06-21 CN CN201610448216.3A patent/CN106042721A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2277905A (en) * | 1993-05-11 | 1994-11-16 | Grogan John J | Sleeve for chalk |
| DE202005014672U1 (en) * | 2005-06-10 | 2005-11-24 | Morocolor Italia S.P.A. | Writing, painting or drawing means for wax crayons, chalk or leads has cylindrical sleeve with longitudinal slot and number of recesses for engaging of cursor which acts upon element for writing |
| CN201154601Y (en) * | 2007-07-07 | 2008-11-26 | 王雪松 | Hand chalk holder for continuous use |
| CN201102388Y (en) * | 2007-11-19 | 2008-08-20 | 王蓓 | Chalk cover with blackboard eraser |
| CN201385492Y (en) * | 2009-02-16 | 2010-01-20 | 王淮勇 | Multifunctional chalk sleeve |
| CN201580115U (en) * | 2009-12-30 | 2010-09-15 | 马继合 | Sanitary chalk sleeve |
| CN201941336U (en) * | 2010-10-27 | 2011-08-24 | 上海市青浦区实验中学 | Adjustable chalk jacket |
| CN202623640U (en) * | 2012-05-23 | 2012-12-26 | 德州市第二中学 | Hand-protection chalk sleeve |
| CN202656688U (en) * | 2012-06-22 | 2013-01-09 | 卢晓玲 | Chalk sleeve for teaching |
| CN203666173U (en) * | 2014-01-10 | 2014-06-25 | 北华航天工业学院 | Multipurpose chalk clamping bar |
| CN203957617U (en) * | 2014-07-23 | 2014-11-26 | 房媛 | Chalk fixator |
| CN204172541U (en) * | 2014-10-31 | 2015-02-25 | 邢台市开发区北园中学 | A kind of chalk clamping device for middle school teaching |
| CN204567004U (en) * | 2015-03-25 | 2015-08-19 | 贵州电子信息职业技术学院 | A kind of portable environmental-protection Multifunctional chalk clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |
|
| WD01 | Invention patent application deemed withdrawn after publication |