CN201189770Y - Convenient chalk casing - Google Patents
Convenient chalk casing Download PDFInfo
- Publication number
- CN201189770Y CN201189770Y CNU2008201144202U CN200820114420U CN201189770Y CN 201189770 Y CN201189770 Y CN 201189770Y CN U2008201144202 U CNU2008201144202 U CN U2008201144202U CN 200820114420 U CN200820114420 U CN 200820114420U CN 201189770 Y CN201189770 Y CN 201189770Y
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- CN
- China
- Prior art keywords
- chalk
- chalk sleeve
- utility
- model
- sleeve
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a convenient chalk jacket, and aims at solving the problem that the length of the fixed chalk can be adjusted and the problem of skid prevention. The convenient chalk jacket mainly comprises a chalk jacket, a chalk, a fixing ring, a pushing rod, a handle and a skidproof film. The convenient chalk jacket is characterized in that the lower end of the handle is fixedly connected at the upper end of the pushing rod, the lower end of the pushing rod is nested in the upper end inside the chalk jacket, the lower end of the chalk jacket is fixedly arranged on the whole body of the fixing ring, the whole body of the skidproof film is sleeved on the outer surface of the chalk jacket.
Description
(1) technical field:
The utility model relates to and makes things convenient for chalk sleeve, divides the technical field that belongs to wax crayon or chalk clamper group by International Patent Classification (IPC) (IPC).
(2) background technology:
At present, the technology about wax crayon or chalk clamper group existing and that once had need all be done very fruitful effort to making things convenient for chalk sleeve, also once designed many outstanding technical schemes.As declaring of the Decree of Patent Office of China in 1996 by Ziqiang Science and Technology Development Co., Yangquan City, Granted publication number is CN2216464Y, China Patent No. (ZL) is: No. 94246098.7 utility model title is the utility model patent of " chalk sleeve ", the technical scheme that is adopted, at wax crayon or chalk clamper group technical elements is a routine of great value invention, and it has solved when writing letter written with chalk the not technical problem of dirty hand effectively.But still have some deficits, it also is difficult to solve fixedly chalk and adjustable length, anti-skidding technical problem.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of chalk sleeve that makes things convenient for.To solve fixedly chalk and adjustable length, anti-skidding technical problem.
The new technical scheme that above-mentioned technical problem to be solved in the utility model adopted is: the chalk sleeve that makes things convenient for of the present utility model mainly is made of chalk sleeve, chalk, retainer ring, pushing ram, handle, non-skid film.
In shape, structure and combination thereof, the essential features that makes things convenient for chalk sleeve and immediate prior art to have of the present utility model is: the integral body of chalk is nested in the inside of chalk sleeve, be combined into the shrink-fit structure of drum, function has been cover chalk, the not effect of dirty hand.In shape, structure and combination thereof, the chalk sleeve technical characterictic different with immediate prior art that make things convenient for of the present utility model is: the lower end of handle is fixedly connected on the upper end of pushing ram, the lower end of pushing ram is nested in the inside, upper end of chalk sleeve, the lower end of chalk sleeve is fixedly mounted on the integral body of retainer ring, be combined into the combining structure of expansion link shape, function has been the fixedly effect of chalk and adjustable length.The integral body of non-skid film is enclosed within the outer surface of chalk sleeve, is combined into the combining structure of cylindrical shape, and function has been anti-skidding effect.So just having reached the chalk sleeve that makes things convenient for of the present utility model is to realize fixedly chalk and adjustable length, anti-skidding purpose.
The beneficial effect that makes things convenient for chalk sleeve of utility model is that the utility model is to solve fixedly chalk and adjustable length, and the anti-skidding technical scheme that technical problem adopted has been compared two place's advantage and improvement with existing with the technology about wax crayon or chalk clamper group that once had:
First, because the lower end of having designed handle in the technical scheme that makes things convenient for chalk sleeve of the present utility model is fixedly connected on the upper end of pushing ram, the lower end of pushing ram is nested in the inside, upper end of chalk sleeve, the lower end of chalk sleeve is fixedly mounted on the integral body of retainer ring, be combined into the combining structure of expansion link shape, so the fixing technical problem of chalk and adjustable length of easier solution.
The second, owing to designed the outer surface that the integral body of non-skid film is enclosed within chalk sleeve in the technical scheme that makes things convenient for chalk sleeve of the present utility model, be combined into the combining structure of cylindrical shape, so the anti-skidding technical problem of easier solution.
(4) description of drawings:
Accompanying drawing provides the structural representation that makes things convenient for chalk sleeve of the present utility model:
Fig. 1: be the overall structure schematic diagram that makes things convenient for chalk sleeve of the present utility model;
The label declaration at each position in the schematic diagram:
1 chalk sleeve, 2 chalks, 3 retainer rings
4 pushing rams, 5 handles, 6 non-skid films
(5) specific embodiment:
Below in conjunction with accompanying drawing, be to realize solving fixedly chalk and adjustable length to the chalk sleeve that makes things convenient for of the present utility model, the optimal way of the technical scheme that anti-skidding technical problem is taked is described further:
Its static structure: see also accompanying drawing: as shown in the figure, the chalk sleeve that makes things convenient for of the present utility model mainly is made of chalk sleeve 1, chalk 2, retainer ring 3, pushing ram 4, handle 5, non-skid film 6.Its major part chalk 2, non-skid film 6, retainer ring 3 are selected for use by market.Its chalk sleeve 1 is a drum, is material with plastics, through the casting processing and manufacturing.Its pushing ram 4 is cylindrical shapes, is material with plastics, through the machining manufacturing.Its handle 5 is circular shapes, is material with plastics, through the machining manufacturing.
In shape, structure and combination thereof, the essential features that makes things convenient for chalk sleeve and immediate prior art to have of the present utility model is: the integral body of chalk 2 is nested in the inside of chalk sleeve 1, be combined into the shrink-fit structure of drum, function has been cover chalk, the not effect of dirty hand.In shape, structure and combination thereof, the chalk sleeve technical characterictic different with immediate prior art that make things convenient for of the present utility model is: the lower end of handle 5 is fixedly connected on the upper end of pushing ram 4, the lower end of pushing ram 4 is nested in the inside, upper end of chalk sleeve 1, the lower end of chalk sleeve 1 is fixedly mounted on the integral body of retainer ring 3, be combined into the combining structure of expansion link shape, function has been the fixedly effect of chalk and adjustable length.The integral body of non-skid film 6 is enclosed within the outer surface of chalk sleeve 1, is combined into the combining structure of cylindrical shape, and function has been anti-skidding effect.
Below by using method, further set forth the chalk sleeve dynamic structure relation that makes things convenient for of the present utility model: in use, when the fixing chalk and when regulating length of needs, according to theory of mechanics, at first the Antu shows chalk 2 is enclosed within the chalk sleeve 1, with retainer ring 3 chalk 2 is clamped then, regulate the position of pushing ram 4 more then and then change the length of chalk 1, thereby finish fixing chalk and regulate the task of length.So just realized that the chalk sleeve that makes things convenient for of the present utility model is for reaching fixedly chalk and adjustable length, the technical scheme of anti-skidding technical problem.
Realize that preferred plan of the present utility model is is material with plastics, utilize the basic equipment of teaching aid factory, take to produce by batch in a large number, the demand with supply educational circles so just can realize practical value and the economic worth that makes things convenient for chalk sleeve of the present utility model better.
Claims (1)
1. make things convenient for chalk sleeve, it is to be made of chalk sleeve (1), chalk (2), retainer ring (3), pushing ram (4), handle (5), non-skid film (6), the integral body of its chalk (2) is nested in the inside of chalk sleeve (1), it is characterized in that: the lower end of handle (5) is fixedly connected on the upper end of pushing ram (4), the lower end of pushing ram (4) is nested in the inside, upper end of chalk sleeve (1), the lower end of chalk sleeve (1) is fixedly mounted on the integral body of retainer ring (3), and the integral body of non-skid film (6) is enclosed within the outer surface of chalk sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201144202U CN201189770Y (en) | 2008-05-19 | 2008-05-19 | Convenient chalk casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201144202U CN201189770Y (en) | 2008-05-19 | 2008-05-19 | Convenient chalk casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201189770Y true CN201189770Y (en) | 2009-02-04 |
Family
ID=40333926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201144202U Expired - Fee Related CN201189770Y (en) | 2008-05-19 | 2008-05-19 | Convenient chalk casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201189770Y (en) |
-
2008
- 2008-05-19 CN CNU2008201144202U patent/CN201189770Y/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: 20090204 Termination date: 20100519 |