CN202463267U - Chalk holder - Google Patents
Chalk holder Download PDFInfo
- Publication number
- CN202463267U CN202463267U CN2012200715570U CN201220071557U CN202463267U CN 202463267 U CN202463267 U CN 202463267U CN 2012200715570 U CN2012200715570 U CN 2012200715570U CN 201220071557 U CN201220071557 U CN 201220071557U CN 202463267 U CN202463267 U CN 202463267U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- chalk
- jacking rod
- push rod
- holder
- 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
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Abstract
The utility model discloses a chalk holder, which comprises a sleeve and a jacking rod, wherein the jacking rod is inserted in the sleeve from the rear part of the sleeve; internal threads are formed on the sleeve; external threads are formed on the jacking rod; the internal threads are matched with the external threads; and a rod holder is arranged at the bottom of the jacking rod. The chalk holder has the benefits as follows: (1) the structure is simple; (2) a chalk is sheathed with the sleeve, the sleeve is pinched tightly, and then the chalk can be used for writing, so that cleanness and sanitation can be achieved; (3) the jacking rod is inserted in the sleeve, the external threads are formed on the jacking rod, and the internal threads are formed on the sleeve, so that the jacking rod can be screwed forwards continuously to squeeze the chalk out of the sleeve along with the consumption of the chalk in the sleeve, the chalk holder is convenient for writing, the chalk can be consumed completely, and the utilization ratio of the chalk can be improved; and (4) the rod holder is arranged at the bottom of the jacking rod, so that the jacking rod is convenient to screw hand.
Description
Technical field
The utility model relates to a kind of realia, particularly a kind of chalk sleeve.
Background technology
Teacher need use chalk writing words, symbol and draw various figures on blackboard usually when giving lessons, because when writing, teacher need firmly clutch chalk, thereby the powder on the chalk is easy to be stained with teacher on hand, and is very unhygienic.
Summary of the invention
The problem that the utility model will solve is: a kind of simple in structure, sanitation and hygiene are provided and can improve the chalk sleeve of chalk utilization rate greatly.
In order to solve the problems of the technologies described above, the chalk sleeve of the utility model comprises sleeve and is inserted in the push rod in the sleeve from the sleeve rear that said sleeve is provided with internal thread, and said push rod is provided with external screw thread, and said internal thread and external screw thread are complementary.
For the ease of turning push rod, the chalk sleeve of the utility model, the bottom of said push rod is provided with pole socket.
The beneficial effect that the utility model is obtained is: (1) is simple in structure; (2) chalk is inserted in the sleeve, clutches sleeve, can write, thereby sanitation and hygiene; (3) push rod is inserted in the sleeve, and push rod is provided with external screw thread, and sleeve is provided with internal thread, thereby; Along with the consumption of chalk in the sleeve, can constantly turn push rod, chalk is extruded outside the sleeve; Not only be convenient to write, and can the chalk full consumption be fallen, improve the utilization rate of chalk; (4) bottom of push rod is provided with pole socket, is convenient to turn push rod with hand.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the exploded view of the utility model.
Among the figure: 1, chalk, 2, sleeve, 3, push rod, 4, pole socket, 5, internal thread, 6, external screw thread.
The specific embodiment
As depicted in figs. 1 and 2, the chalk sleeve of the utility model comprises sleeve 2 and is inserted in the push rod 3 in the sleeve 2 from sleeve 2 rears that said sleeve 2 is provided with internal thread 5, and said push rod 3 is provided with external screw thread 6, and said internal thread 5 is complementary with external screw thread 6; The bottom of said push rod 3 is provided with pole socket 4.
In the time of concrete the use, chalk 1 is inserted in the sleeve 2, clutches sleeve 2, can write, thereby sanitation and hygiene.
The chalk sleeve of the utility model, push rod 3 are inserted in the sleeve 2, and push rod 3 is provided with external screw thread 6; Sleeve 2 is provided with internal thread 5, thereby, along with the consumption of chalk 1 in the sleeve 2; Can constantly turn push rod 3, chalk 1 is extruded outside the sleeve 2, not only be convenient to write; And can chalk 1 full consumption be fallen, improve the utilization rate of chalk 1;
The chalk sleeve of the utility model, the bottom of push rod 3 is provided with pole socket 4, is convenient to turn push rod 3 with hand.
The utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the utility model.
Claims (2)
1. chalk sleeve; It is characterized in that: comprise sleeve (2) and be inserted in the push rod (3) in the sleeve (2) from sleeve (2) rear; Said sleeve (2) is provided with internal thread (5), and said push rod (3) is provided with external screw thread (6), and said internal thread (5) and external screw thread (6) are complementary.
2. chalk sleeve according to claim 1 is characterized in that: the bottom of said push rod (3) is provided with pole socket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200715570U CN202463267U (en) | 2012-02-23 | 2012-02-23 | Chalk holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200715570U CN202463267U (en) | 2012-02-23 | 2012-02-23 | Chalk holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202463267U true CN202463267U (en) | 2012-10-03 |
Family
ID=46911455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200715570U Expired - Fee Related CN202463267U (en) | 2012-02-23 | 2012-02-23 | Chalk holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202463267U (en) |
-
2012
- 2012-02-23 CN CN2012200715570U patent/CN202463267U/en not_active Expired - Fee Related
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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: 20121003 Termination date: 20130223 |