CN202847212U - Telescopic chalk shell - Google Patents
Telescopic chalk shell Download PDFInfo
- Publication number
- CN202847212U CN202847212U CN 201220525248 CN201220525248U CN202847212U CN 202847212 U CN202847212 U CN 202847212U CN 201220525248 CN201220525248 CN 201220525248 CN 201220525248 U CN201220525248 U CN 201220525248U CN 202847212 U CN202847212 U CN 202847212U
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- shell
- chalk
- cylindrical shell
- utility
- model
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- 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
A telescopic chalk shell is applied to the technical field of clamping devices, and particularly relates to the telescopic chalk shell. The utility model provides the telescopic chalk shell which is convenient to use, saves chalk and has no hurt to hands. The telescopic chalk shell is characterized in that the telescopic chalk shell comprises a column shell with an opening upper end and an opening lower end, internal threads are arranged on the inner wall of the column shell, A sleeve tube is arranged in the column shell, external threads which correspond to the internal threads are arranged on the outer wall of the sleeve tube, the lower end of the sleeve tube is connected with a twisting handle which is arranged below the column shell through a connecting rod, a dust-removing block is arranged at the lower end of the twisting handle, a suspension loop is arranged on the twisting handle and an electronic watch is arranged on the outer wall of the column shell.
Description
Technical field
The utility model belongs to the clamping device technical field, relates in particular to a kind of Telescopic chalk shell.
Background technology
Chalk is the instrument that widely uses in the daily life, is for general on the blackboard and writes.The chalk in ancient times is made with natural chalk usually, and multiplex other material replaces now.The composition of chalk is a kind of white depositions of calcium sulfate, is not easy to be decomposed, and particle is larger than dust.Now, the chalk of domestic use mainly contains two kinds of common chalk and dust-free chalks, and its main component is calcium carbonate (lime stone) and calcium sulfate (gypsum), or contains a small amount of calcium oxide.
People are when using chalk, and hand directly contacts with chalk, and the adversary can cause certain injury.
Summary of the invention
The utility model is exactly for the problems referred to above, provide a kind of easy to use, save chalk, do not hinder the Telescopic chalk shell of hand.
For achieving the above object, the utility model adopts following technical scheme, the utility model comprises the cylindrical shell of opening up and down, be provided with internal thread on the cylindrical shell inwall, be provided with sleeve pipe in its structural feature cylindrical shell, sleeve outer wall is provided with external screw thread corresponding to described internal thread, and the sleeve pipe lower end connects by the stubborn palmistry of connecting rod and cylindrical shell below, twist subordinate end and be provided with the grey piece of wiping, twist and be provided with on hand link; Be provided with electronic watch on the described cylindrical shell outer wall.
As a kind of preferred version, cylindrical shell described in the utility model adopts plastic casing.
The utility model beneficial effect:
1, easy to use, save chalk, do not hinder hand
Be provided with sleeve pipe in the utility model cylindrical shell, sleeve outer wall is provided with external screw thread corresponding to described internal thread, and the sleeve pipe lower end connects by the stubborn palmistry of connecting rod and cylindrical shell below.Be convenient to sleeve pipe screwed on and back out by twisting hand, be convenient to place chalk by sleeve pipe.When using chalk in the past, only surplus very short when a part of if chalk is used, owing to be not easy to hand, just be dropped waste; By the utility model, as long as chalk can insert in the sleeve pipe, just can use, therefore use the utility model to save chalk.In addition, hand-held the utility model cylindrical shell is write, and hand does not directly contact chalk, does not hinder hand.
2, be convenient in time remove wrong person's handwriting
The utility model is twisted subordinate end and is provided with the grey piece of wiping.Be convenient in time remove wrong person's handwriting by wiping grey piece.
3, be convenient to hang
The utility model is twisted and is provided with on hand link.Be convenient to hang by link.
But 4 displaying times
Be provided with electronic watch on the utility model cylindrical shell outer wall.But electronic watch displaying time.
5, lightweight, cost is low
The utility model cylindrical shell adopts plastic casing.Plastic casing is lightweight, cost is low.
6, simple in structure
The utility model comprises cylindrical shell, sleeve pipe, connecting rod, twists hand, wipes grey piece, link, electronic watch; Member is few, connection is simple.
Description of drawings
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with the drawings and the specific embodiments, the utility model is further elaborated.Should be appreciated that the specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1 is the utility model structural representation;
Among the figure, 1 is that the grey piece of wiping, 2 is that stubborn hand, 3 is that connecting rod, 4 is that sleeve pipe, 5 is that cylindrical shell, 6 is that electronic watch, 7 is that chalk, 8 is link.
The specific embodiment
As shown in Figure 1, the utility model comprises the cylindrical shell 5 of opening up and down, be provided with internal thread on cylindrical shell 5 inwalls, be provided with sleeve pipe 4 in the cylindrical shell 5, sleeve pipe 4 outer walls are provided with external screw thread corresponding to described internal thread, sleeve pipe 4 lower ends link to each other with the stubborn hand 2 of cylindrical shell 5 belows by connecting rod 3, twist hand 2 lower ends and are provided with the grey piece 1 of wiping, twist on the hand 2 and are provided with link 8; Be provided with electronic watch 6 on described cylindrical shell 5 outer walls.
Described cylindrical shell 5 adopts plastic casing.
Above content is the further description of the utility model being done in conjunction with concrete preferred embodiment; can not assert that implementation of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; can also make some simple deduction or replace, all should be considered as belonging to the definite protection domain of claims that the utility model is submitted to.
Claims (2)
1. Telescopic chalk shell, comprise the cylindrical shell (5) of opening up and down, be provided with internal thread on cylindrical shell (5) inwall, it is characterized in that being provided with in the cylindrical shell (5) sleeve pipe (4), sleeve pipe (4) outer wall is provided with external screw thread corresponding to described internal thread, sleeve pipe (4) lower end links to each other by the stubborn hand (2) of connecting rod (3) with cylindrical shell (5) below, twist hand (2) lower end and be provided with wiping grey piece (1), twist on the hand (2) and be provided with link (8); Be provided with electronic watch (6) on described cylindrical shell (5) outer wall.
2. described Telescopic chalk shell according to claim 1 is characterized in that described cylindrical shell (5) adopts plastic casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525248 CN202847212U (en) | 2012-09-29 | 2012-09-29 | Telescopic chalk shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525248 CN202847212U (en) | 2012-09-29 | 2012-09-29 | Telescopic chalk shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202847212U true CN202847212U (en) | 2013-04-03 |
Family
ID=47978446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220525248 Expired - Fee Related CN202847212U (en) | 2012-09-29 | 2012-09-29 | Telescopic chalk shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202847212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142905A (en) * | 2016-09-13 | 2016-11-23 | 南宁市远才教育咨询有限公司 | A kind of chalk sleeve |
| CN106313948A (en) * | 2016-09-13 | 2017-01-11 | 南宁市远才教育咨询有限公司 | Chalk cover with laser lamp |
-
2012
- 2012-09-29 CN CN 201220525248 patent/CN202847212U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142905A (en) * | 2016-09-13 | 2016-11-23 | 南宁市远才教育咨询有限公司 | A kind of chalk sleeve |
| CN106313948A (en) * | 2016-09-13 | 2017-01-11 | 南宁市远才教育咨询有限公司 | Chalk cover with laser lamp |
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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: 20130403 Termination date: 20130929 |