CN101085584A - Environmental protection chalk - Google Patents
Environmental protection chalk Download PDFInfo
- Publication number
- CN101085584A CN101085584A CN 200610087334 CN200610087334A CN101085584A CN 101085584 A CN101085584 A CN 101085584A CN 200610087334 CN200610087334 CN 200610087334 CN 200610087334 A CN200610087334 A CN 200610087334A CN 101085584 A CN101085584 A CN 101085584A
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- China
- Prior art keywords
- chalk
- environmental protection
- pen core
- core seat
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Abstract
The invention relates to the environment protective chalk.The chalk core uses chalk liquid changing to solid to reduce powder greatly. The chalk core is installed on the special chalk shell to reduce contamination to hands.
Description
Technical field
The present invention relates to a kind of chalk, especially a kind of environmental protection chalk comprises Chalk casing and chalk core two parts.
Background technology
Chalk is that the teacher teaches knowledge, student's necessary tool that absorbs knowledge.Can produce dust at traditional chalk, chafe, shortcoming such as unhygienic and fracture has easily had a lot of people that traditional chalk is improved.Improve and mainly concentrate on the dust that reduces chalk and use chalk sleeve.For the dust aspect that reduces chalk, the someone has proposed chalk is configured to liquid form, this liquid chalk is recorded the improvement project of using in pen.Though this liquid chalk can reach the purpose that reduces dust, its shortcoming is this liquid chalk can in handwriting the time, is subjected to the restriction of pen core thickness, and general this pen core is the thickest to be 5 millimeters, and when writing, the student who arranges behind the classroom seems more painstaking.
And use the technical scheme of chalk sleeve to be mostly common chalk is installed on the chalk sleeve, and can only separate and never pollute user's hand, reduce the problem of chafe, can not solve the problem of eliminating dust.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, proposed a kind of novel environment friendly chalk, comprised Chalk casing and chalk core two parts, wherein the chalk core is that the sex change of liquid chalk liquid is become the solid chalk, this chalk core can be installed in the special-purpose Chalk casing, constitutes environmental protection chalk of the present invention.
The advantage of environmental protection chalk of the present invention is two aspects: 1. the chalk core is formed by the sex change of liquid chalk liquid, greatly reduces the generation of dust, and writing is clear when writing simultaneously.2. the chalk core is installed on the special-purpose Chalk casing, further reduces adversary's pollution, uses safety and sanitation.
Environmental protection chalk of the present invention can use on common ground glass blackboard, and person's handwriting can be wiped with wet cloth, and writes also unaffected, very easy to use under the situation of blackboard humidity.
For achieving the above object, the present invention adopts following technical scheme:
One, the manufacturing of chalk core:
Raw material is mixed by following percentage by weight: 5 parts of titanium dioxides, 18 parts of powdered whitings, 15 parts of land plasters, 2 parts in dextrin, an amount of water fully stirs after being mixed into pasty state, sends into extruder after stirring, and extrusion molding blocks the length that becomes to need.
After this chalk core is shaped to be shaped as diameter bar-shaped uniformly.Chalk core after the shaping adopts the packing method of similar boxlike cigarette, is convenient to the teacher and carries.
Two, the assembling of environmental protection chalk:
The chalk core of said method production is installed in the special-purpose Chalk casing of the present invention.Special-purpose Chalk casing of the present invention is made up of the cap for brush, handwriting, adjustment body, pen core seat and blanking cover five parts, establish screw thread in the handwriting, so that it is flexible to drive the pen core seat when body is adjusted in rotation, pen core seat tail end has the both sides projection, just in time embed in the screw thread of handwriting inboard, and can in screw thread, slide freely, pen core seat middle part is a square column, just embed and adjust in the body, adjusting the body inboard is rectangle, the square column of pen core seat just in time can enter wherein and freely slides, and adjusts body and drives the motion of pen core seat when rotated, thereby realize advancing and retreating of pen core seat.
Chalk core with preceding method production during use is installed on pen core seat front end, and advancing and retreating of pen core seat just realized stretching out and retraction of chalk core.
The special-purpose Chalk casing deft design of the present invention, rational in infrastructure simple, adopt good engineering plastics manufacturing, lightly durable, sanitation and hygiene.Its design feature is that hand does not directly contact the chalk core when using environmental protection chalk, can freely adjust the length of environmental protection chalk core, makes its not frangibility, and has reduced the length of chalk head greatly, and it is convenient, easy to carry to change.
Description of drawings:
Fig. 1: environmental protection chalk outward appearance perspective view
Fig. 2: cap for brush perspective view
Fig. 3: handwriting perspective view
Fig. 4: blanking cover perspective view
Fig. 5: adjust the body perspective view
Fig. 6: pen core seat perspective view
Fig. 7: pen core seat longitudinal sectional drawing
Fig. 8: pen core seat left view
Fig. 9: handwriting longitudinal sectional drawing
Figure 10: adjust the body longitudinal sectional drawing
Figure 11: adjust the body left view
Figure 12: environmental protection chalk installation diagram
Specific embodiment
The structure of environmental protection chalk:
Environmental protection chalk 1 of the present invention has following structure: mainly be made up of the cap for brush 2, handwriting 3, adjustment body 4, pen core seat 5 and blanking cover 7 five parts, the outward appearance perspective view of each parts is shown in Fig. 1-6.Establish screw thread in the handwriting 3, so that it is flexible to drive pen core seat 5 when body 4 is adjusted in rotation: the tail end of pen core seat 5 has both sides projection 51 (as shown in Figure 7), just in time embed in the screw thread of handwriting 3 inboards, and can in screw thread, slide freely, the middle part of pen core seat 5 is square column 52 (as shown in Figure 8), just embed and adjust in the body 4, the inboard of adjusting body 4 is rectangle 41 (as shown in figure 11), the square column 52 of pen core seat 5 just in time can enter wherein and freely and slide, adjust body 4 and drive 5 motions of pen core seat when rotated, thereby realize advancing and retreating of pen core seat 5.Environmental protection chalk core 6 is installed on pen core seat 5 front ends, and the front end of pen core seat 5 has an opening 53, as Fig. 7, shown in 8, so that chalk core 6 is installed easily, just advancing and retreating of pen core seat 5 realized stretching out and retraction of environmental protection chalk core 6.
The manufacturing of chalk core:
Raw material adopts rutile type titanium white 5 grams, powdered whiting 18 grams, land plaster 15 grams, dextrin 2 grams, water is an amount of, is mixed into pasty state, after above-mentioned mixed raw materials is fully stirred, send into extruder, extrusion molding, and block the length that becomes to need, send into then in the conveyer belt dryer, 170-180 ℃ of oven dry down, be packaged into box at last.
Adopt rutile type titanium white in the foregoing description, in fact can select the titanium dioxide of any model for use according to actual conditions.Selecting for use dextrin as binding agent, is one of characteristics of the present invention, and the continuous experiment through the inventor proves that dextrin is more satisfactory binding agent.
The installation of environmental protection chalk:
To adjust body during installation earlier and be inserted in handwriting front end (left side of Fig. 3), again the pen core seat from handwriting tail end (right side of Fig. 3) handwriting of packing into, body is adjusted in rotation makes pen core seat front end stretch out the adjustment body, blanking cover is contained in the tail end of handwriting, the environmental protection chalk core is inserted on the pen core seat, and body is adjusted in rotation round about again, makes environmental protection chalk core retraction handwriting, till can not rotating, cover the cap for brush and get final product.The environmental protection chalk that assembling is finished as shown in Figure 6.
The dismounting of environmental protection chalk:
During dismounting, pull up the cap for brush, earlier the environmental protection chalk core is launched, again rotation adjust body make the pen core seat to handwriting foremost, slightly firmly rotation a bit can eject blanking cover about handwriting 2mm again, take off blanking cover, the pen core seat is poured out from handwriting, final force is extracted from handwriting adjusting body, finishes dismounting again.
Chalk core of the present invention and the supporting use of special-purpose Chalk casing have significantly reduced the generation of dust, and health safe in utilization reaches the effect of environmental protection.
Claims (5)
1. environmental protection chalk, form by chalk core and Chalk casing two parts, it is characterized in that: Chalk casing is by the cap for brush (2), handwriting (3), adjust body (4), pen core seat (5) and blanking cover (7) five parts are formed, handwriting is established screw thread in (2), so that it is flexible to drive pen core seat (5) when body (4) is adjusted in rotation, pen core seat (5) tail end has the both sides projection, just in time embed in the inboard screw thread of handwriting (2), and can in screw thread, slide freely, pen core seat (5) middle part is square column (52), adjusting the body inboard is rectangle (41), the square column of pen core seat just in time can enter to be adjusted in the body and slides freely, adjust body (4) and drive pen core seat (5) motion when rotated, thereby realize advancing and retreating of pen core seat.
2. environmental protection chalk as claimed in claim 1 is characterized in that: pen core seat front end has an opening (53), with the convenient chalk core of installing.
3. environmental protection chalk as claimed in claim 1 is characterized in that: the manufacturing process of described chalk core is: raw material is mixed by following percentage by weight: 5 parts of titanium dioxides, 18 parts of powdered whitings, 15 parts of land plasters, 2 parts in dextrin, an amount of water fully stirs after being mixed into pasty state, after stirring, send into extruder, extrusion molding, and block the length that becomes to need, send into then in the conveyer belt dryer, 170-180 ℃ of oven dry down, promptly obtain the environmental protection chalk core.
4. environmental protection chalk as claimed in claim 3 is characterized in that: described chalk core is shaped as bar-shaped uniformly.
5. environmental protection chalk as claimed in claim 3 is characterized in that: described chalk core adopts the packing of boxlike cigarette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610087334 CN101085584A (en) | 2006-06-08 | 2006-06-08 | Environmental protection chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610087334 CN101085584A (en) | 2006-06-08 | 2006-06-08 | Environmental protection chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101085584A true CN101085584A (en) | 2007-12-12 |
Family
ID=38936825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610087334 Pending CN101085584A (en) | 2006-06-08 | 2006-06-08 | Environmental protection chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101085584A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440804A (en) * | 2015-12-30 | 2016-03-30 | 崇夕山 | Healthy and durable chalk |
| CN105482561A (en) * | 2015-12-30 | 2016-04-13 | 崇夕山 | Environment-friendly chalk |
| CN105482560A (en) * | 2015-12-30 | 2016-04-13 | 崇夕山 | Chalk not easily subjected to dust fall |
| CN105482559A (en) * | 2015-12-30 | 2016-04-13 | 崇夕山 | Green and healthy chalk |
| CN105505003A (en) * | 2015-12-30 | 2016-04-20 | 崇夕山 | Environment friendly durable chalk |
| CN105505004A (en) * | 2015-12-30 | 2016-04-20 | 崇夕山 | Low-cost lightweight chalk |
| US10071594B2 (en) | 2014-12-16 | 2018-09-11 | Stanley Black & Decker, Inc. | Chalk line device |
-
2006
- 2006-06-08 CN CN 200610087334 patent/CN101085584A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10071594B2 (en) | 2014-12-16 | 2018-09-11 | Stanley Black & Decker, Inc. | Chalk line device |
| CN105440804A (en) * | 2015-12-30 | 2016-03-30 | 崇夕山 | Healthy and durable chalk |
| CN105482561A (en) * | 2015-12-30 | 2016-04-13 | 崇夕山 | Environment-friendly chalk |
| CN105482560A (en) * | 2015-12-30 | 2016-04-13 | 崇夕山 | Chalk not easily subjected to dust fall |
| CN105482559A (en) * | 2015-12-30 | 2016-04-13 | 崇夕山 | Green and healthy chalk |
| CN105505003A (en) * | 2015-12-30 | 2016-04-20 | 崇夕山 | Environment friendly durable chalk |
| CN105505004A (en) * | 2015-12-30 | 2016-04-20 | 崇夕山 | Low-cost lightweight chalk |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |