CN204055037U - A kind of school rotary chalk cover - Google Patents
A kind of school rotary chalk cover Download PDFInfo
- Publication number
- CN204055037U CN204055037U CN201420429920.0U CN201420429920U CN204055037U CN 204055037 U CN204055037 U CN 204055037U CN 201420429920 U CN201420429920 U CN 201420429920U CN 204055037 U CN204055037 U CN 204055037U
- Authority
- CN
- China
- Prior art keywords
- chalk
- pin rod
- shell
- push rod
- utility
- 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
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of school rotary chalk cover, it relates to chalk sleeve technical field, be provided with pivoted housing by rotating shaft in shell, pivoted housing is provided with uniformly several chalk mounting pipe, the side of push rod and shell is slidably connected, the upper end of push rod is provided with rubber blanket, the side of push rod is provided with pin rod, and pin rod and shell are slidably connected, and pin rod is socketed with spring, one end of pin rod is provided with pull handle, and its other end is provided with thimble; The utility model is convenient to install and carry chalk, and easy and simple to handle, features simple structure, saves time.
Description
Technical field:
The utility model relates to a kind of school rotary chalk cover, belongs to chalk sleeve technical field.
Background technology:
Chalk is the instrument widely used in daily life, is generally used for book and writes on the blackboard.The chalk in ancient times is made with natural chalk usually, but now multiplex other material replace.The composition of chalk is a kind of white depositions of calcium sulfate, and be not easy to be decomposed, particle is larger than dust.The chalk of domestic use mainly contains common chalk and dust-free chalk two kinds, and its main component is calcium carbonate (lime stone) and calcium sulfate (gypsum), or containing a small amount of calcium oxide.
Existing chalk sleeve all can only fill a chalk, and inconvenient in use, inconvenient operation.
Utility model content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of school rotary chalk cover.
A kind of school of the present utility model rotary chalk cover, it comprises shell, push rod, spring, pin rod, pivoted housing, rotating shaft, chalk mounting pipe, rubber blanket, pull handle, by rotating shaft, pivoted housing is installed in shell, pivoted housing is provided with uniformly several chalk mounting pipe, the side of push rod and shell is slidably connected, the upper end of push rod is provided with rubber blanket, the side of push rod is provided with pin rod, pin rod and shell are slidably connected, pin rod is socketed with spring, one end of pin rod is provided with pull handle, and its other end is provided with thimble.
As preferably, described chalk mounting pipe is elasticity mounting pipe.
As preferably, the arranged outside of described spring has dirt-proof boot.
The beneficial effects of the utility model are: be convenient to install and carry chalk, easy and simple to handle, features simple structure, saves time.
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;
Fig. 2 is the top view of Fig. 1.
In figure: 1-shell; 2-push rod; 3-spring; 4-pin rod; 5-pivoted housing; 6-rotating shaft; 7-chalk mounting pipe; 8-rubber blanket; 9-pull handle.
Detailed description of the invention:
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these describe just exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present utility model.
As shown in Figure 1-2, this detailed description of the invention is by the following technical solutions: it comprises shell 1, push rod 2, spring 3, pin rod 4, pivoted housing 5, rotating shaft 6, chalk mounting pipe 7, rubber blanket 8, pull handle 9, by rotating shaft 6, pivoted housing 5 is installed in shell 1, pivoted housing 5 is provided with uniformly several chalk mounting pipe 7, push rod 2 is slidably connected with the side of shell 1, the upper end of push rod 2 is provided with rubber blanket 8, the side of push rod 2 is provided with pin rod 4, pin rod 4 and shell 1 are slidably connected, pin rod 4 is socketed with spring 3, one end of pin rod 4 is provided with pull handle 9, its other end is provided with thimble.
Further, described chalk mounting pipe 7 is elasticity mounting pipe.
Further, the arranged outside of described spring 3 has dirt-proof boot.
The operation principle of this detailed description of the invention is: be arranged on by chalk in chalk mounting pipe 7, move push rod 2 to bottom, rotate pivoted housing 5, push rod 2 is shifted onto in chalk mounting pipe 7, and is fixed by pin rod 4, easy and simple to handle, easy to carry, and save time, disposablely can carry many chalks, easy to use.
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 (3)
1. school's rotary chalk cover, it is characterized in that: it comprises shell (1), push rod (2), spring (3), pin rod (4), pivoted housing (5), rotating shaft (6), chalk mounting pipe (7), rubber blanket (8), pull handle (9), by rotating shaft (6), pivoted housing (5) is installed in shell (1), pivoted housing (5) is provided with uniformly several chalk mounting pipe (7), push rod (2) is slidably connected with the side of shell (1), the upper end of push rod (2) is provided with rubber blanket (8), the side of push rod (2) is provided with pin rod (4), pin rod (4) and shell (1) are slidably connected, pin rod (4) is socketed with spring (3), one end of pin rod (4) is provided with pull handle (9), its other end is provided with thimble.
2. a kind of school according to claim 1 rotary chalk cover, is characterized in that: described chalk mounting pipe (7) is elasticity mounting pipe.
3. a kind of school according to claim 1 rotary chalk cover, is characterized in that: the arranged outside of described spring (3) has dirt-proof boot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429920.0U CN204055037U (en) | 2014-07-31 | 2014-07-31 | A kind of school rotary chalk cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429920.0U CN204055037U (en) | 2014-07-31 | 2014-07-31 | A kind of school rotary chalk cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204055037U true CN204055037U (en) | 2014-12-31 |
Family
ID=52196612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420429920.0U Expired - Fee Related CN204055037U (en) | 2014-07-31 | 2014-07-31 | A kind of school rotary chalk cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204055037U (en) |
-
2014
- 2014-07-31 CN CN201420429920.0U patent/CN204055037U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204055037U (en) | A kind of school rotary chalk cover | |
| CN201338465Y (en) | Double-head brush pen | |
| CN202847212U (en) | Telescopic chalk shell | |
| CN104118245A (en) | Chalk saving clamping device | |
| CN201633344U (en) | Energy-saving cleaning chalk sleeve | |
| CN204451642U (en) | Multifunctional pen | |
| CN204149708U (en) | One is convenient for carrying pen | |
| CN204322814U (en) | The servicing unit that a kind of teaching chalk is special | |
| CN202573422U (en) | Chalk sleeve | |
| CN202782310U (en) | Chalk clamping device | |
| CN204382892U (en) | Chalk protector | |
| CN203472336U (en) | Chalk case | |
| CN202685631U (en) | Chalk barrel | |
| CN204726085U (en) | Chalk sleeve | |
| CN202319474U (en) | Multifunctional pen | |
| CN203019882U (en) | Novel chalk sleeve | |
| CN201670007U (en) | Pen with ruler | |
| CN201693912U (en) | Multi-functional pen | |
| CN202071562U (en) | Dual-purpose pen | |
| CN104369579A (en) | Chalk sleeve with additional dust collecting device | |
| CN201400003Y (en) | Pencil with pencil sharpener | |
| CN202242631U (en) | Multifunctional blackboard eraser | |
| CN201124693Y (en) | Novel rubber eraser | |
| CN2616389Y (en) | White board pen | |
| CN201960913U (en) | Movable chalk |
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: 20141231 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |