CN207825785U - A kind of chalk sleeve - Google Patents
A kind of chalk sleeve Download PDFInfo
- Publication number
- CN207825785U CN207825785U CN201721029560.5U CN201721029560U CN207825785U CN 207825785 U CN207825785 U CN 207825785U CN 201721029560 U CN201721029560 U CN 201721029560U CN 207825785 U CN207825785 U CN 207825785U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- chalk
- inner tube
- shrapnel
- sliding slot
- 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
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model discloses a kind of chalk sleeves, it includes sleeve, be movably connected the fixing sleeve of inner tube and connection on inner pipe on sleeve, it is provided with guide groove on the side wall of sleeve, guide groove includes the sliding slot being axially arranged and multiple card slots along sleeve, multiple card slots are successively set on the side of sliding slot along the length direction of sleeve, and each card slot is connected with sliding slot, inner tube includes the clamping section being connected with each other and adjusting section, adjust that section is mobilizable is contained in sleeve, it adjusts and is provided with along the movable holding piece of guide groove on the side wall of section, clamping section includes the shrapnel of at least two mutual obvolvents, fixing sleeve is set in the outside of shrapnel and is connect with shrapnel taper thread.The utility model is by being arranged the fixing sleeve of sleeve and the inner tube being movably connected on sleeve and connection on inner pipe, it avoids hand from being in direct contact chalk, and the length of being affectedly bashful of chalk can be adjusted twice, facilitate and write and waste can be reduced, use cost is saved, suitable for promoting the use of.
Description
Technical field
The utility model is related to educational aid fields, particularly, are related to a kind of chalk sleeve.
Background technology
Teacher is often write and drawn on the blackboard to explain with chalk, however the ingredient of chalk is largely gypsum, teacher
The pushing time contacted with chalk hand skin caused to become dry, coarse, and feel with itching, keep human body uncomfortable；In addition,
When chalk use to it is shorter and when being not easy to be affectedly bashful, it will usually lost, to cause to waste, increase use cost.
Utility model content
Technical problem to be solved in the utility model is：In order to overcome the above-mentioned problems in the prior art, now carry
It is affectedly bashful length for a kind of adjustable chalk, and the chalk sleeve of different thicknesses specification chalk can be placed.
The utility model solves its technical problem technical solution to be taken：A kind of chalk sleeve, the chalk sleeve packet
Sleeve, the inner tube being movably connected on the sleeve and the fixing sleeve being connected in said inner tube are included, the sleeve
Guide groove is provided on side wall, the guide groove includes the sliding slot being axially arranged and multiple card slots along the sleeve, multiple described
Card slot is successively set on the side of the sliding slot along the length direction of the sleeve, and each card slot is connected with the sliding slot
Logical, said inner tube includes the clamping section being connected with each other and adjusts section, and the adjusting section is mobilizable to be contained in the sleeve, institute
It states and is provided with along the movable holding piece of the guide groove on the side wall for adjusting section, the clamping section includes at least two mutual obvolvents
Shrapnel, the fixing sleeve are set in the outside of the shrapnel and are connect with the shrapnel taper thread.
Further, the same side there are three the card slots and set on the sliding slot, each card slot is along the set
The radial setting of cylinder.
Further, the holding piece is removably mounted on the side wall of said inner tube, and the holding piece can be along institute
Sliding slot is stated to slide and be locked in the card slot.
Further, the shrapnel there are two and mutually obvolvent setting, the inner surface of two shrapnels is set as arc.
Further, at least one elastic component is provided between the inner wall of the sleeve and the outer wall of said inner tube.
Further, the elastic component is rubber.
Further, it is provided with anti-slip part on the outer wall of the fixing sleeve.
The utility model has the beneficial effects that：Chalk sleeve provided by the utility model, by setting sleeve and movably
The fixing sleeve of the inner tube and connection being arranged in sleeve on inner pipe, avoids hand from being in direct contact chalk, and can be to chalk
It is affectedly bashful length to be adjusted twice, facilitates and write and can reduce waste, save use cost, it is simple in structure, it is easy for installation, it is suitable
It promotes the use of.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the chalk sleeve of the utility model；
Fig. 2 is the cross-sectional view of the chalk sleeve of the utility model；
Fig. 3 is the vertical view of the chalk sleeve of the utility model.
In figure：1, sleeve, 11, guide groove, 111, sliding slot, 112, card slot, 12, elastic component, 2, inner tube, 21, clamping section, 211,
Shrapnel, 212, cavity, 22, adjust section, 221, holding piece, 3, fixing sleeve.
Specific implementation mode
The utility model is described in detail presently in connection with attached drawing.This figure is the schematic diagram of simplification, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows composition related with the utility model.
Referring to Fig. 1, the utility model provides a kind of chalk sleeve, which includes sleeve 1, is connected on sleeve 1
Inner tube 2 and the fixing sleeve 3 that is connected in inner tube 2.
Sleeve 1 is the hollow cylinder of one end open, and guide groove 11 is provided on the side wall of sleeve 1, and guide groove 11 includes along set
The sliding slot 111 being axially arranged and multiple card slots 112, multiple card slots 112 of cylinder 1 are successively set on along the length direction of sleeve 1
The side of sliding slot 111, and each card slot 112 is connected with sliding slot 111.In present embodiment, there are three and set on slide card slot 112
The same side of slot 111, each card slot 112 is along the radial direction setting of sleeve 1, it is possible to understand that ground, in other unshowned embodiment party
In formula, card slot 112 can be four, five it is even more, card slot 112 can also be set to the both sides of sliding slot 111.
Referring to Fig. 2, inner tube 2 is movably connected in sleeve 1, inner tube 2 includes the clamping section 21 being connected with each other and adjusts
Segment 22.
The adjusting section 22 of inner tube 2 is movably contained in sleeve 1, is adjusted to be provided on the side wall of section 22 and be lived along guide groove 11
Dynamic holding piece 221, holding piece 221 are removably mounted on the side wall of inner tube 2, when inner tube 2 is movable in sleeve 1, lock
Gripping member 221 can be slided along sliding slot 111 and is locked in card slot 112.
Fig. 2 and Fig. 3 are please referred to, clamping section 21 includes the shrapnel 211 of at least two mutual obvolvents, the shrapnel of mutual obvolvent
One is formed between 211 for placing the cavity 212 of chalk, in present embodiment, there are two shrapnels 211, it is possible to understand that ground,
In other unshowned embodiments, the number of shrapnel 211 can also be three, it is four or even more.
Further, the inner surface of each shrapnel 211 is disposed as arcuate structure, and these arcuate structures rank in
On the same circle, in order to which cylindrical chalk is clamped.It is to be appreciated that in other unshowned embodiments, shrapnel 211
Inner surface can also be rectangular or other irregular shapes, and chalk can be clamped after only need to meeting 211 obvolvent of shrapnel, this
Place is not restricted.
Fig. 2 and Fig. 3 are please referred to, fixing sleeve 3 is set in the outside of the shrapnel 211 in inner tube 2 and connects with 211 taper thread of shrapnel
It connects, when fixing sleeve 3 is tightened, the space of cavity 212 becomes smaller, and can place the thinner chalk of diameter, when fixing sleeve 3 is unscrewed,
The space of cavity 212 becomes larger, and can place the thicker chalk of diameter, and the chalk of different thicknesses specification can be in cavity 212
It is up and down, position of the fixing sleeve 3 according to the different thicknesses specification and chalk for the chalk installed in cavity 212 in cavity 212
Set the corresponding position being set in outside shrapnel 211.
It in present embodiment, processes for convenience, inner tube 2 is integrally formed, and is set in shrapnel for the ease of fixing sleeve 3
Shrapnel 211 is easily deformed when tightening or unscrew outside 211, and shrapnel 211 is stainless steel thin slice.
In addition, in order to increase the frictional force between fixing sleeve 3 and hand, fixing sleeve 3 is adjusted convenient for rotating, outside fixing sleeve 3
It is provided with anti-slip part (not shown) on wall, in present embodiment, anti-slip part is the knurling being arranged in 3 outer surface of fixing sleeve.It can
To understand ground, in other unshowned embodiments, anti-slip part can also be provided in annular knurl on 3 outer surface of fixing sleeve,
Groove or protrusion etc., are not restricted herein.
In present embodiment, further, in order to avoid sleeve 1 is interfered with 2 active procedure of inner tube, and then cause
Activity is unsmooth, and there are two elastic components 12 for setting between the inner wall and the outer wall of inner tube 2 of sleeve 1.Meanwhile by the way that elastic component is arranged
12, frictional force when increasing 2 activity of inner tube improves the usage experience of user to enhance adjusting feel.It is appreciated that
Ground, elastic component 12 include but not limited to two, can also there are one, three it is even more.
In present embodiment, the material of elastic component 12 is rubber, it is possible to understand that ground, in other unshowned embodiments
In, the material of elastic component 12 can also be the flexible material such as silica gel.
Illustrate the use process of the chalk sleeve of the utility model below in conjunction with the accompanying drawings.
In use, chalk is inserted into the cavity 212 that shrapnel 211 is formed, chalk works as powder in the axis upward sliding of inner tube 2
After the location determination of pen, fixing sleeve 3 is tightened, chalk is fixed, and realizes the Primary regulation that length is affectedly bashful to chalk.
Inner tube 2 is rotated, holding piece 221 is made to be slided in guide groove 11, the stretching for adjusting 2 relative sleeve of inner tube, 1 open end is grown
Degree adjusts chalk from the distance between sleeve 1, the Secondary Control for being affectedly bashful length to chalk is realized, so that user writes
Come more smooth.
The chalk sleeve of the utility model, by the way that sleeve 1 and the inner tube 2 being movably disposed on sleeve 1 is arranged and connects
The fixing sleeve 3 being connected in inner tube 2 avoids hand from being in direct contact chalk, and can twice be adjusted to the length of being affectedly bashful of chalk, side
Just waste is write and can be reduced, use cost is saved, it is simple in structure, it is easy for installation, suitable for promoting the use of.
It is enlightenment, through the above description, relevant work with the above-mentioned desirable embodiment according to the utility model
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (7)
1. a kind of chalk sleeve, it is characterised in that：The inner tube that the chalk sleeve includes sleeve, is movably connected on the sleeve
And it is connected to the fixing sleeve in said inner tube, guide groove is provided on the side wall of the sleeve, the guide groove includes along the set
The sliding slot being axially arranged and multiple card slots of cylinder, multiple card slots are successively set on described along the length direction of the sleeve
The side of sliding slot, and each card slot is connected with the sliding slot, said inner tube includes the clamping section being connected with each other and adjusting
Section, the adjusting section is mobilizable to be contained in the sleeve, is provided on the side wall for adjusting section along guide groove activity
Holding piece, the clamping section includes the shrapnel of at least two mutual obvolvents, and the fixing sleeve is set in the outside of the shrapnel
And it is connect with the shrapnel taper thread.
2. chalk sleeve as described in claim 1, it is characterised in that：There are three the card slots and is set to the same of the sliding slot
Side, each card slot is along the radial direction setting of the sleeve.
3. chalk sleeve as described in claim 1, it is characterised in that：The holding piece is removably mounted on the side of said inner tube
On wall, the holding piece can be slided along the sliding slot and is locked in the card slot.
4. chalk sleeve as described in claim 1, it is characterised in that：There are two the shrapnels and mutually obvolvent setting, two institutes
The inner surface for stating shrapnel is set as arc.
5. chalk sleeve as described in claim 1, it is characterised in that：It is set between the inner wall of the sleeve and the outer wall of said inner tube
It is equipped at least one elastic component.
6. chalk sleeve as claimed in claim 5, it is characterised in that：The elastic component is rubber.
7. chalk sleeve as claimed in any one of claims 1 to 6, it is characterised in that：It is provided on the outer wall of the fixing sleeve anti-
Cunning portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029560.5U CN207825785U (en) | 2017-08-16 | 2017-08-16 | A kind of chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029560.5U CN207825785U (en) | 2017-08-16 | 2017-08-16 | A kind of chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207825785U true CN207825785U (en) | 2018-09-07 |
Family
ID=63384880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721029560.5U Expired - Fee Related CN207825785U (en) | 2017-08-16 | 2017-08-16 | A kind of chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207825785U (en) |
-
2017
- 2017-08-16 CN CN201721029560.5U patent/CN207825785U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20190816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |