CN108016162A - Chalk clip for teaching - Google Patents
Chalk clip for teaching Download PDFInfo
- Publication number
- CN108016162A CN108016162A CN201610972414.XA CN201610972414A CN108016162A CN 108016162 A CN108016162 A CN 108016162A CN 201610972414 A CN201610972414 A CN 201610972414A CN 108016162 A CN108016162 A CN 108016162A
- Authority
- CN
- China
- Prior art keywords
- supporting rod
- chalk
- adjusting rod
- locking device
- teaching
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/016—Holders for crayons or chalks
Landscapes
- Clamps And Clips (AREA)
Abstract
The present invention relates to teaching aid technical field, more particularly to a kind of chalk clip for teaching, including supporting rod and adjusting rod, the supporting rod and adjusting rod are hollow structure, one end of the supporting rod is equipped with the first locking device for being used for clamping chalk, the other end of the supporting rod is set in adjusting rod, and the second locking device is provided with the adjusting rod, and the supporting rod is flexibly connected by the second locking device with adjusting rod.The configuration of the present invention is simple, reduces use cost, easy to spread, has good practicality.When in use, avoid finger when in use to contact with the direct of chalk, cleaning and health when keeping using, are not easy to make surrounding articles dirty.And the device length is adjustable, different teaching needs are disclosure satisfy that.
Description
Technical field
The present invention relates to teaching aid technical field, and in particular to a kind of chalk clip for teaching.
Background technology
Chalk is the regular supplies that school teacher writes on blackboard, and now, the chalk that the country uses mainly has common chalk
With two kinds of dust-free chalk, its main component is calcium carbonate and calcium sulfate, or containing a small amount of calcium oxide.Teacher often need to be on blackboard
Writing, draw and explained.In writing, finger is directly contacted with chalk, often expires the powder that hand is white after class for one, right
Hand pollutes, to the healthy unfavorable of people.
And teacher when giving lessons, it is necessary to through common chalk-writing blackboard, flipbook or carry out other operations, when with
After the completion of chalk-writing, substantial amounts of dust will be stained with by the hand of chalk, and is capable of the environment of cleaning in time on classroom,
So carry out will being stained with when other operations again and cause inconvenience on other articles such as book, teaching aid or clothes.Particularly upper
During drawing, hold that chalk is inconvenient to use with hand, the place for generally requiring to can't reach on blackboard carries out painting and retouches, if merely
If hand-held chalk, difficulty is larger.
The content of the invention
It is an object of the invention to provide a kind of simple in structure, length-adjustable chalk clip for teaching.
In order to achieve the above object, the technical solution adopted by the present invention is：Chalk clip for teaching, including supporting rod and adjusting
Bar, the supporting rod and adjusting rod are hollow structure, and one end of the supporting rod, which is equipped with, is used for the first locking for clamping chalk
Device, the other end of the supporting rod are set in adjusting rod, and the second locking device, the clamping are provided with the adjusting rod
Bar is flexibly connected by the second locking device with adjusting rod.
Chalk clip for teaching as described above, further illustrates to be that first locking device and the second locking device are equal
For clamping screw.
Chalk clip for teaching as described above, further illustrates to be that scale mark is provided with the supporting rod.
Chalk clip for teaching as described above, further illustrates to be that the supporting rod and adjusting rod are transparent material.
Chalk clip for teaching as described above, further illustrates to be to be arranged with Anti-slip cover outside the adjusting rod.
The beneficial effects of the invention are as follows：The configuration of the present invention is simple, reduces use cost, easy to spread, has good
Practicality.When in use, avoid finger when in use to contact with the direct of chalk, cleaning and health when keeping using, no
Easily make surrounding articles dirty.And the device length is adjustable, different teaching needs are disclosure satisfy that.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1st, supporting rod；2nd, adjusting rod；3rd, the first locking device；4th, the second locking device；5th, scale mark；6th, powder
Pen.
Embodiment
The specific embodiment of the invention is further elaborated below in conjunction with the accompanying drawings.
As shown in Figure 1, chalk clip for teaching provided by the invention, including supporting rod 1 and adjusting rod 2,1 He of supporting rod
Adjusting rod 2 is hollow structure, and one end of the supporting rod 1 is equipped with the first locking device 3 for being used for clamping chalk 6, and described the
One locking device 3 can select clamping screw, i.e., the threaded hole being adapted with clamping screw is set on supporting rod 1, so as to lock
Tight bolt is through abutting chalk 6 after the threaded hole on supporting rod 1, so that chalk 6 is fixed in supporting rod 1.
The other end of the supporting rod 1 is set in adjusting rod 2, and the second locking device 4 is provided with the adjusting rod 2,
The supporting rod 1 is flexibly connected by the second locking device 4 with adjusting rod 2.I.e. adjusting rod 2 can be along on 1 surface of supporting rod
Lower movement, is locked by the second locking device 4, so as to so that this length by length is adjustable, meet different teaching need
Will.
Second locking device 4 can also use clamping screw, and the adjusting rod 2 is equipped with and is adapted with clamping screw
Threaded hole, the clamping screw pushes against the supporting rod 1 in adjusting rod 2 through the threaded hole on adjusting rod 2, so as to will adjust
Pole 2 is fixedly connected with supporting rod 1.
For the ease of the length of the observation present invention, scale mark 5 can be provided with the supporting rod 1.1 He of supporting rod
Adjusting rod 2 may be arranged as transparent material, consequently facilitating the internal service condition of the observation present invention.
It can set up defences sliding sleeve in 2 overcoat of adjusting rod, so that the present invention is not easy to drop when in use.Structure letter of the present invention
It is single, use cost is reduced, it is easy to spread, there is good practicality.When in use, finger when in use and chalk are avoided
Directly contact, keep use when cleaning and health, be not easy to make surrounding articles dirty.
The present invention is not limited to examples detailed above, in claims of the present invention limited range, art technology
The various deformations or amendments that personnel can make without creative work are protected by this patent.
Claims (5)
1. chalk clip for teaching, it is characterised in that：Including supporting rod and adjusting rod, the supporting rod and adjusting rod are hollow knot
Structure, one end of the supporting rod are equipped with the first locking device for being used for clamping chalk, and the other end of the supporting rod is set in tune
In pole, the second locking device is provided with the adjusting rod, the supporting rod passes through the second locking device and adjusting rod activity
Connection.
2. chalk clip for teaching according to claim 1, it is characterised in that：First locking device and the second locking dress
It is clamping screw to put.
3. chalk clip for teaching according to claim 1, it is characterised in that：Scale mark is provided with the supporting rod.
4. chalk clip for teaching according to claim 1, it is characterised in that：The supporting rod and adjusting rod are transparent material
Matter.
5. chalk clip for teaching according to claim 1, it is characterised in that：Anti-slip cover is arranged with outside the adjusting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972414.XA CN108016162A (en) | 2016-11-03 | 2016-11-03 | Chalk clip for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972414.XA CN108016162A (en) | 2016-11-03 | 2016-11-03 | Chalk clip for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108016162A true CN108016162A (en) | 2018-05-11 |
Family
ID=62084689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610972414.XA Pending CN108016162A (en) | 2016-11-03 | 2016-11-03 | Chalk clip for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108016162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903639A (en) * | 2019-04-16 | 2019-06-18 | 陈特 | A kind of teaching bar of Chemistry Teaching of Senior High School |
-
2016
- 2016-11-03 CN CN201610972414.XA patent/CN108016162A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903639A (en) * | 2019-04-16 | 2019-06-18 | 陈特 | A kind of teaching bar of Chemistry Teaching of Senior High School |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180511 |