CN2163067Y - Dustless liquid chalk - Google Patents
Dustless liquid chalk Download PDFInfo
- Publication number
- CN2163067Y CN2163067Y CN 93221803 CN93221803U CN2163067Y CN 2163067 Y CN2163067 Y CN 2163067Y CN 93221803 CN93221803 CN 93221803 CN 93221803 U CN93221803 U CN 93221803U CN 2163067 Y CN2163067 Y CN 2163067Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- dustless
- precursor
- utility
- front body
- 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
- Pens And Brushes (AREA)
Abstract
The utility model relates to a dustless liquid chalk, which belongs to the writing appliances, particularly a chalk front body structure using emulsion as writing liquid. For a long time, harm brought by dust generated when a creta chalk is used is well known and the utility model aims to provide a dustless chalk to replace the creta chalk, which mainly comprises a chalk holder and a chalk cap. The chalk holder is composed of a chalk front body, a rubber pipe and a shell, wherein, the rubber pipe and the shell are sheathed with the chalk front body; the shaft center of the chalk front body is a hole with the diameter of from 2 to 4.5 mm; the periphery of the end head of the hole is hair type objects. When writing, the chalk forms thin and clear writings when erasing, the chalk almost has no dust, and therefore, the utility model has the advantages of simple structure and practicability.
Description
The utility model relates to writing appliance, and particularly a kind of being applicable to uses emulsion as a front body structure of writing liquid.
As everyone knows, for a long time, white Shanxi chalk uses, and falls not many, dust from flying, traces it to its cause, and mainly being that the foundation cream of writing is thicker when writing easily comes off, and dust enters air in a large number in wiping process in addition.Like this on blackboard, using the educator of chalk to cause serious actual bodily harm all day.
At above-mentioned reason, the present utility model people has at first invented a kind of white emulsion, and this emulsion forms writing when writing quite thin and clear, without any dust releasing, when wiping examination, because its powder amount is quite few, almost completely is trapped on the brush.The utility model purpose provides the use that matches with said emulsion of a kind of lettering pen, thereby reaches dustless purpose.
The utility model is made of penholder, the cap for brush, and penholder is reached by a precursor and the sebific duct and the shell of a precursor socket constitute, and the profile of a precursor is taper, and main inventive point is:
The axle center of precursor is a duct, is hair around the front end of duct;
Accompanying drawing 1 is the utility model structural representation;
The utility model is described in further detail below in conjunction with accompanying drawing;
The utility model is made of penholder, the cap for brush (2), penholder is reached by a precursor (5) and the sebific duct (6) and the shell (7) of a precursor (5) socket constitute, there is a duct (8) in the axle center of precursor (5), aperture 2～4.5mm, around the termination of precursor is hair (1), staple length 2～5mm, hair is sleeved on the precursor by snap ring (4).Pen emits a protruding rod member (3) is arranged in (2), and when covering pen when emitting, rod member (3) matches with the centre bore (8) of a precursor.The employed emulsion of the utility model can be 39% lithopone (30%ZnS, 70%BaSO
4), 60% ethanol (concentration is 96%), 1% benzene sulfonic acid sodium salt, can add micro-essence in addition.Certainly, also can join the corresponding emulsion that other material is made, emulsion places earlier in the sebific duct (6).
Claims (3)
1, a kind of dustless liquid chalk is made of penholder, the cap for brush, and penholder constitutes by a precursor and with a precursor socket sebific duct and shell, and the profile of a precursor is the axle center that taper is characterized in that a precursor a duct, and hair is arranged around the front end of duct.
2, dustless liquid chalk according to claim 1 is characterized in that the duct internal diameter 2～4.5mm in a precursor axle center.
3, dustless liquid chalk according to claim 1 is characterized in that precursor termination staple length 2～5mm on every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221803 CN2163067Y (en) | 1993-08-13 | 1993-08-13 | Dustless liquid chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221803 CN2163067Y (en) | 1993-08-13 | 1993-08-13 | Dustless liquid chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2163067Y true CN2163067Y (en) | 1994-04-27 |
Family
ID=33800563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93221803 Expired - Fee Related CN2163067Y (en) | 1993-08-13 | 1993-08-13 | Dustless liquid chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2163067Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10071594B2 (en) | 2014-12-16 | 2018-09-11 | Stanley Black & Decker, Inc. | Chalk line device |
-
1993
- 1993-08-13 CN CN 93221803 patent/CN2163067Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10071594B2 (en) | 2014-12-16 | 2018-09-11 | Stanley Black & Decker, Inc. | Chalk line device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |