CN201120797Y - Chalk rotating holder - Google Patents
Chalk rotating holder Download PDFInfo
- Publication number
- CN201120797Y CN201120797Y CNU2007200929901U CN200720092990U CN201120797Y CN 201120797 Y CN201120797 Y CN 201120797Y CN U2007200929901 U CNU2007200929901 U CN U2007200929901U CN 200720092990 U CN200720092990 U CN 200720092990U CN 201120797 Y CN201120797 Y CN 201120797Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- base
- grip tube
- centre gripping
- gripping 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
Links
- 230000000295 complement effect Effects 0.000 claims description 17
- 210000003811 finger Anatomy 0.000 abstract description 3
- 210000003813 thumb Anatomy 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract 1
- 238000009987 spinning Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
Images
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- Pens And Brushes (AREA)
Abstract
The utility model discloses a rotatory holder of chalk, including base and centre gripping pipe, the axial cross-section of base is "mountain" style of calligraphy, the lower extreme of centre gripping pipe inserts in the central cylinder of base and the cavity between the lateral wall all around to the centre gripping pipe with be provided with the assorted screw thread between the base, make base and centre gripping pipe spiral joint together, the internal diameter of centre gripping pipe and the external diameter phase-match of chalk. The utility model discloses a rotatory holder of chalk, the base is lipstick formula base, even the chalk head also can exert effects fully, can practice thrift chalk use cost, the teacher can screw in the chalk out as required like rotatory lipstick when using, likes to use how long writing just can screw out how long chalk, can keep a preferred exposure length when writing, and needn't break the chalk off with the fingers and thumb again, and can avoid making full hand chalk dust, continuous writing, not dirty hand; when not in use, the chalk can be screwed in to avoid the chalk body from being broken, and the structure is simple, economic and practical.
Description
Technical field:
The utility model relates to a kind of writing implement, and particularly a kind of chalk rotation clamper belongs to the educational aid technical field.
Background technology:
All there are following conspicuous defective in present bare common chalk and dust-free chalk: characteristics such as dirty hand, unhygienic, frangibility, waste.Can bring injury to skin on hand when the user uses, make skin on hand become coarse ugly, when particularly children were with small blackboard study painting and calligraphy, this drawback was particularly evident; And at the initial stage of using, because the chalk body is longer, a little firmly just easily chalk is broken when writing, influence is used, and is using latter stage, can't write again because the chalk body is too short, have to abandon it, thereby greatly degree causes waste.
The utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of chalk rotation clamper is provided, satisfy teaching person's needs.
The utility model is that the technical scheme that the technical solution problem is taked is:
A kind of chalk rotation clamper, comprise base and grip tube, the axial cross section of described base is " mountain " font, the center column of described base is inserted and all around in the cavity between the sidewall in the lower end of described grip tube, and be provided with the screw thread that is complementary between grip tube and the described base, base and grip tube spiral are connected together, and the internal diameter of described grip tube and the external diameter of chalk are complementary.
The lower end of described grip tube is provided with an inside bulge loop, and the center column of described base passes from the endoporus of this bulge loop, and is provided with the screw thread that is complementary between described bulge loop and the described center column, and base and grip tube spiral are connected together.
Be provided with the screw thread that is complementary between sidewall and the described grip tube around the described base, base and grip tube spiral are connected together.
The inwall of described grip tube is provided with the spring leaf of clamping chalk.
The good effect that utility model can reach is:
1. chalk rotation clamper of the present utility model, teacher in use can be as required with chalk as the spinning in and out of rotation lipstick, like just can screwing out chalk how long with how long writing, can keep a preferable protruded length (adjustable length when writing, scalable), and needn't break chalk again off with the fingers and thumb, and can avoid making full chalk ash, constantly pen, hand-dirtying-free; The time spent can not fracture its precession to avoid the chalk body, and is simple in structure, economical and practical.
2. chalk rotation clamper of the present utility model, base is a lipstick formula base, even the chalk head also can play a role fully, can save the chalk use cost.
Description of drawings:
Fig. 1 rotates one of structural representation of clamper for chalk;
Fig. 2 is two of the structural representation of chalk rotation clamper;
Fig. 3 is three of the structural representation of chalk rotation clamper.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
Embodiment 1: referring to Fig. 1, a kind of chalk rotation clamper, comprise base 1 and grip tube 3, the axial cross section of described base 1 is " mountain " font, the center column 2 of described base 1 is inserted and all around in the cavity between the sidewall in the lower end of described grip tube 3, and be provided with the screw thread that is complementary between grip tube 3 and the described base 1, base 1 and grip tube 3 spirals are connected together, the external diameter of the internal diameter of described grip tube 3 and chalk 3 is complementary; The lower end of described grip tube 3 is provided with an inside bulge loop, and the center column 2 of described base 1 passes from the endoporus of this bulge loop, and is provided with the screw thread that is complementary between described bulge loop and the described center column 2, and base 1 and grip tube 3 spirals are connected together.
Chalk rotation clamper of the present utility model, teacher in use can be as required with chalk as the spinning in and out of rotation lipstick, like just can screwing out chalk how long with how long writing, can keep a preferable protruded length (adjustable length when writing, scalable), and needn't break chalk again off with the fingers and thumb, and can avoid making full chalk ash, constantly pen, hand-dirtying-free; The time spent can not fracture its precession to avoid the chalk body, and is simple in structure, economical and practical; And chalk rotation clamper of the present utility model, base is a lipstick formula base, even the chalk head also can play a role fully, can save the chalk use cost.
Embodiment 2: referring to Fig. 2, a kind of chalk rotation clamper, comprise base 1 and grip tube 3, the axial cross section of described base 1 is " mountain " font, the center column 2 of described base 1 is inserted and all around in the cavity between the sidewall in the lower end of described grip tube 3, and be provided with the screw thread that is complementary between grip tube 3 and the described base 1, base 1 and grip tube 3 spirals are connected together, the external diameter of the internal diameter of described grip tube 3 and chalk 3 is complementary; Be provided with the screw thread that is complementary between sidewall and the described grip tube 3 around the described base 1, base 1 and grip tube 3 spirals are connected together.
Embodiment 3: referring to Fig. 3, a kind of chalk rotation clamper, comprise base 1 and grip tube 3, the axial cross section of described base 1 is " mountain " font, the center column 2 of described base 1 is inserted and all around in the cavity between the sidewall in the lower end of described grip tube 3, and be provided with the screw thread that is complementary between grip tube 3 and the described base 1, base 1 and grip tube 3 spirals are connected together, the external diameter of the internal diameter of described grip tube 3 and chalk 3 is complementary; The lower end of described grip tube 3 is provided with an inside bulge loop, and the center column 2 of described base 1 passes from the endoporus of this bulge loop, and is provided with the screw thread that is complementary between described bulge loop and the described center column 2, and base 1 and grip tube 3 spirals are connected together; The inwall of described grip tube (3) is provided with the spring leaf 5 of clamping chalk 4.
Claims (4)
1. a chalk rotates clamper, comprise base (1) and grip tube (3), it is characterized in that: the axial cross section of described base (1) is " mountain " font, the center column (2) of described base (1) is inserted and all around in the cavity between the sidewall in the lower end of described grip tube (3), and be provided with the screw thread that is complementary between grip tube (3) and the described base (1), base (1) and grip tube (3) spiral are connected together, and the external diameter of the internal diameter of described grip tube (3) and chalk (4) is complementary.
2. chalk rotation clamper according to claim 1, it is characterized in that: the lower end of described grip tube (3) is provided with an inside bulge loop, the center column (2) of described base (1) passes from the endoporus of this bulge loop, and be provided with the screw thread that is complementary between described bulge loop and the described center column (2), base (1) and grip tube (3) spiral are connected together.
3. chalk rotation clamper according to claim 1 is characterized in that: be provided with the screw thread that is complementary between sidewall and the described grip tube (3) around the described base (1), base (1) and grip tube (3) spiral are connected together.
4. according to claim 1 or 2 or 3 described chalk rotation clampers, it is characterized in that: the inwall of described grip tube (3) is provided with the spring leaf (5) of clamping chalk (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200929901U CN201120797Y (en) | 2007-11-28 | 2007-11-28 | Chalk rotating holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200929901U CN201120797Y (en) | 2007-11-28 | 2007-11-28 | Chalk rotating holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201120797Y true CN201120797Y (en) | 2008-09-24 |
Family
ID=40008018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200929901U Expired - Fee Related CN201120797Y (en) | 2007-11-28 | 2007-11-28 | Chalk rotating holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201120797Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495953A (en) * | 2013-09-24 | 2014-01-08 | 江苏通鼎通信设备有限公司 | FC big screw cap assembly jig device |
| CN104773009A (en) * | 2015-05-12 | 2015-07-15 | 罗福仲 | Novel chalk cover |
-
2007
- 2007-11-28 CN CNU2007200929901U patent/CN201120797Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495953A (en) * | 2013-09-24 | 2014-01-08 | 江苏通鼎通信设备有限公司 | FC big screw cap assembly jig device |
| CN104773009A (en) * | 2015-05-12 | 2015-07-15 | 罗福仲 | Novel chalk cover |
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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: 20080924 Termination date: 20091228 |