CN204322814U - The servicing unit that a kind of teaching chalk is special - Google Patents
The servicing unit that a kind of teaching chalk is special Download PDFInfo
- Publication number
- CN204322814U CN204322814U CN201420807088.3U CN201420807088U CN204322814U CN 204322814 U CN204322814 U CN 204322814U CN 201420807088 U CN201420807088 U CN 201420807088U CN 204322814 U CN204322814 U CN 204322814U
- Authority
- CN
- China
- Prior art keywords
- chalk
- sleeve
- heating element
- push rod
- element heater
- 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 the servicing unit that a kind of teaching chalk is special, it relates to realia field, and it comprises chalk, end cap, push rod, heating element heater, pushing block, hook, handle, sleeve and bellows; Its reasonable in design, modern design is unique, simple to operate, easy to use, and arranging heating element heater can dry to chalk heating, prevents from making moist, arranges anti-slip veins, can prevent from getting loose, arrange bellows and can realize quick position, thus control the length of chalk.
Description
Technical field:
The utility model relates to realia, specifically relates to the servicing unit that a kind of teaching chalk is special.
Background technology:
All the time, chalk is all one of writing implement the most basic in teaching process.But chalk is made up of chemical powder material, and self has corrosivity, in use directly contact dangerous with hand, permanent use more can affect hand hygiene and skin health.
Currently occur easy to break in chalk use procedure, Yi Chao, the drawback such as easily to abandon, the utilization rate of chalk and result of use is had a greatly reduced quality.Moist chalk affect writing effect, and fractures or use last chalk end and often abandon thus cause and waste and environmental pollution.
Utility model content:
In order to solve the problem, the utility model provides a kind of technical scheme: the servicing unit that a kind of teaching chalk is special, and main body is chalk, and its innovative point is: also comprise end cap, push rod, heating element heater, pushing block, hook, handle, sleeve and bellows; Described chalk propelling is connected in sleeve; A pushing block is also slidably connected in described sleeve; On described pushing block, global formation has a push rod, and described push rod runs through whole end cap, and the outer surface of described push rod is coated with bellows; Described end cap is fixedly connected on sleeve; Described push rod is fixedly connected with a handles; The outer surface of described sleeve is coated with heating element heater, described heating element heater is also fixedly connected with a hook.
As preferably, described heating element heater is heater strip.
As preferably, the diameter of described sleeve is greater than the diameter of chalk.
As preferably, this outside of deivce face is also provided with anti-slip veins.
The beneficial effects of the utility model: its reasonable in design, modern design is unique, simple to operate, easy to use, arrange heating element heater to dry to chalk heating, prevent from making moist, anti-slip veins is set, can prevent from getting loose, bellows is set and can realize quick position, thus control the length of chalk.
Accompanying drawing illustrates:
For ease of illustrating, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model.
1-chalk; 2-end cap; 3-push rod; 4-heating element heater; 5-pushing block; 6-links up with; 7-handle; 8-sleeve; 9-bellows.
Detailed description of the invention:
As shown in Figure 1, this detailed description of the invention by the following technical solutions: main body is chalk 1, also comprises end cap 2, push rod 3, heating element heater 4, pushing block 5, hook 6, handle 7, sleeve 8 and bellows 9; Described chalk 1 is movably connected in sleeve 8; A pushing block 5 is also slidably connected in described sleeve 8; On described pushing block 5, global formation has a push rod 3, and described push rod 3 runs through whole end cap 2, and the outer surface of described push rod 3 is coated with bellows 9; Described end cap 2 is fixedly connected on sleeve 8; Described push rod 3 is fixedly connected with a handles 7; The outer surface of described sleeve 8 is coated with heating element heater 4, described heating element heater 4 is also fixedly connected with a hook 6.
Wherein, described heating element heater 4 is heater strip; The diameter of described sleeve 8 is greater than the diameter of chalk 1; This outside of deivce face is also provided with anti-slip veins.
Using state of the present utility model is: heating element heater is that moisture removed by chalk, by handle under the effect of bellows, freely can control pushing block, thus the length that control chalk stretches out.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. the servicing unit that a teaching chalk is special, main body is chalk (1), it is characterized in that: also comprise end cap (2), push rod (3), heating element heater (4), pushing block (5), hook (6), handle (7), sleeve (8) and bellows (9);
Described chalk (1) is movably connected in sleeve (8);
A pushing block (5) is also slidably connected in described sleeve (8);
The upper global formation of described pushing block (5) has a push rod (3), and described push rod (3) runs through whole end cap (2), and the outer surface of described push rod (3) is coated with bellows (9);
Described end cap (2) is fixedly connected on sleeve (8);
Described push rod (3) is fixedly connected with a handles (7);
The outer surface of described sleeve (8) is coated with heating element heater (4), described heating element heater (4) is also fixedly connected with a hook (6).
2. the servicing unit that a kind of teaching chalk according to claim 1 is special, is characterized in that: described heating element heater (4) is heater strip.
3. the servicing unit that a kind of teaching chalk according to claim 1 is special, is characterized in that: the diameter of described sleeve (8) is greater than the diameter of chalk (1).
4. the servicing unit that a kind of teaching chalk according to claim 1 is special, is characterized in that: this outside of deivce face is also provided with anti-slip veins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807088.3U CN204322814U (en) | 2014-12-12 | 2014-12-12 | The servicing unit that a kind of teaching chalk is special |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807088.3U CN204322814U (en) | 2014-12-12 | 2014-12-12 | The servicing unit that a kind of teaching chalk is special |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204322814U true CN204322814U (en) | 2015-05-13 |
Family
ID=53159207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420807088.3U Expired - Fee Related CN204322814U (en) | 2014-12-12 | 2014-12-12 | The servicing unit that a kind of teaching chalk is special |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204322814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773009A (en) * | 2015-05-12 | 2015-07-15 | 罗福仲 | Novel chalk cover |
-
2014
- 2014-12-12 CN CN201420807088.3U patent/CN204322814U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |