CN202976568U - Multifunctional teaching pointer - Google Patents
Multifunctional teaching pointer Download PDFInfo
- Publication number
- CN202976568U CN202976568U CN 201220697810 CN201220697810U CN202976568U CN 202976568 U CN202976568 U CN 202976568U CN 201220697810 CN201220697810 CN 201220697810 CN 201220697810 U CN201220697810 U CN 201220697810U CN 202976568 U CN202976568 U CN 202976568U
- Authority
- CN
- China
- Prior art keywords
- secondary bar
- stick
- sub
- cavity
- pointer
- 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
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a multifunctional teaching pointer which comprises a main stick consisting of two sub-sticks in sliding fit. The lower end of the second sub-stick is nested in a cavity of the first sub-stick. The second sub-stick is in sliding fit with the first sub-stick through rollers. A rack located in the cavity of the first sub-stick is fixedly connected to the bottom end of the second sub-stick. An adjusting gear meshing with the rack in the cavity is disposed on a handheld part of the first sub-stick through a rotary shaft. The first sub-stick is also provided with a clamp valve, for locking the adjusting gear, above the adjusting gear. The main stick of the multifunctional teaching pointer is length-adjustable, easy to control, resistant to skid and satisfactory to teachers.
Description
Technical field
The utility model relates to a kind of teaching appurtenance, particularly a kind of teacher's pointer.
Background technology
In the classroom instruction process, the teacher need to write on the blackboard the knowledge point book of lecturing, and then uses teacher's pointer to carry out aided education, so teacher's pointer is teacher's one of requisite teaching appurtenance when giving directions writing on the blackboard at school.But existing teacher's pointer can only play indicative function mostly, and function is comparatively single; Serve as a teacher in the time of to write on blackboard, still need to put down teacher's pointer, pick up chalk and write; And for the shorter teacher of height, when being positioned at the wall chart word at blackboard top when writing writing on the blackboard toward the blackboard top or with the teacher's pointer indication, particularly difficulty just seems.Use for convenience of the teacher, the mobile jib of teacher's pointer is made Telescopic shaft type usually, but the teacher's pointer of this kind Telescopic shaft type is too flexible, does not slightly note making mobile jib to shorten, and the content that causes explaining is not inconsistent with the content of indication, affects the accuracy of giving lessons.
Summary of the invention
The technical matters that the utility model solves is to overcome above-mentioned deficiency, and a kind of adjustable in length is provided, and is easy to control, be difficult for the teacher's pointer of slip, satisfies teacher's user demand.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
Multi-functional teacher's pointer comprises mobile jib, and described mobile jib is made of two secondary bars that are slidably matched, and the lower end of described the second secondary bar is socketed in the cavity of the first secondary bar, is slidably matched by roller between the second secondary bar and the first secondary bar; The bottom of described the second secondary bar is fixedly connected with a tooth bar that is positioned at the first secondary bar cavity, the Handheld Division of the first secondary bar arranges an adjusting gear that is meshed with the cavity inner rack by rotating shaft, and the top that the first secondary bar is positioned at adjusting gear also is provided with the card valve for the lock adjustment gear.
Improvement of the present utility model is: the top of described the second secondary bar is fixedly installed and is useful on the claw that grasps chalk, and the bottom screw thread of described claw spins one for the nut of firmly grasping chalk.
Owing to having adopted above technical scheme, the obtained technical progress of the utility model is:
Mobile jib of the present utility model is made of two secondary bars that are slidably matched, by regulating adjusting gear, tooth bar is moved up and down in the cavity of the first secondary bar, also move up and down in the cavity of the first secondary bar thereby drive the second secondary bar, reach the purpose of regulating teacher's pointer length.The card valve that arranges on the first secondary bar is used for the suitable finger lock adjusting gear of length adjustment when teacher's pointer, prevents that the length of teacher's pointer from using in careless situation because touching shortens.The claw that the top of the utility model the second secondary bar arranges is used for grasping chalk, facilitates the teacher to write writing on the blackboard on the top of blackboard, has avoided chalk, teacher's pointer to replace back and forth the loaded down with trivial details of use, has alleviated teacher's labor capacity, has improved classroom teaching efficiency.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1. the first secondary bar, 2. the second secondary bar, 3. roller, 4. tooth bar, 5. adjusting gear, 6. card valve, 7. claw, 8. nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
A kind of multi-functional teacher's pointer, its structure as shown in Figure 1.Comprise by two mobile jibs that secondary bar consists of that are slidably matched.The lower end of the second secondary bar 2 is socketed in the cavity of the first secondary bar 1, is slidably matched by roller 3 between the second secondary bar 2 and the first secondary bar 1.The bottom of the second secondary bar 2 is fixedly connected with a tooth bar 4, and tooth bar 4 is positioned at the cavity of the first secondary bar 1.The Handheld Division of the first secondary bar 1 arranges an adjusting gear 5 by rotating shaft, and the tooth bar 4 in adjusting gear 5 and cavity is meshed, and the adjusting handle of adjusting gear 5 is positioned on the outer wall of the first secondary bar.The top that the first secondary bar 1 is positioned at adjusting gear 5 also is provided with card valve 6, and card valve 6 is used for the lock adjustment gear.
The top of the second secondary bar 2 is fixedly installed claw 7, and the cat's paw of claw arranges up, the bottom screw thread of claw (7) nut 8 that spins.When claw is used for grasping chalk, at first with the nut backspin, claw is opened, chalk is put into the claw bottom, and then upper spin nut, the chalk of claw is fixed, just can carry out writing of writing on the blackboard.
Claims (2)
1. multi-functional teacher's pointer, comprise mobile jib, it is characterized in that: described mobile jib is made of two secondary bars that are slidably matched, and the lower end of the described second secondary bar (2) is socketed in the cavity of the first secondary bar (1), is slidably matched by roller (3) between the second secondary bar (2) and the first secondary bar (1); The bottom of the described second secondary bar (2) is fixedly connected with a tooth bar (4) that is positioned at the first secondary bar (1) cavity, the Handheld Division of the first secondary bar (1) arranges an adjusting gear (5) that is meshed with cavity inner rack (4) by rotating shaft, and the top that the first secondary bar (1) is positioned at adjusting gear (5) also is provided with the card valve (6) for the lock adjustment gear.
2. multi-functional teacher's pointer according to claim 1, it is characterized in that: the top of the described second secondary bar (2) is fixedly installed and is useful on the claw (7) that grasps chalk, and the bottom screw thread of described claw (7) spins and one is used for the promptly nut (8) of chalk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697810 CN202976568U (en) | 2012-12-17 | 2012-12-17 | Multifunctional teaching pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697810 CN202976568U (en) | 2012-12-17 | 2012-12-17 | Multifunctional teaching pointer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976568U true CN202976568U (en) | 2013-06-05 |
Family
ID=48517613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220697810 Expired - Fee Related CN202976568U (en) | 2012-12-17 | 2012-12-17 | Multifunctional teaching pointer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976568U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652659A (en) * | 2015-11-04 | 2017-05-10 | 江苏爱福特科技开发有限公司 | Practical teaching demonstration rod |
| CN106652660A (en) * | 2015-11-04 | 2017-05-10 | 江苏爱福特科技开发有限公司 | Science and engineering teaching demonstration rod |
| CN108444351A (en) * | 2018-05-14 | 2018-08-24 | 傅花宁 | A kind of miniature precision directional blasting instrument |
| CN109878245A (en) * | 2019-03-07 | 2019-06-14 | 湖北工业大学 | A kind of mechanical pencil that can release and automatically retract automatically pen core |
| CN110497714A (en) * | 2018-05-19 | 2019-11-26 | 杨超 | A kind of pencil |
| CN110549769A (en) * | 2018-06-04 | 2019-12-10 | 鲍双林 | Wisdom blackboard writing pen |
| CN114141549A (en) * | 2021-11-26 | 2022-03-04 | 广东电网有限责任公司 | High-voltage discharge device |
-
2012
- 2012-12-17 CN CN 201220697810 patent/CN202976568U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652659A (en) * | 2015-11-04 | 2017-05-10 | 江苏爱福特科技开发有限公司 | Practical teaching demonstration rod |
| CN106652660A (en) * | 2015-11-04 | 2017-05-10 | 江苏爱福特科技开发有限公司 | Science and engineering teaching demonstration rod |
| CN108444351A (en) * | 2018-05-14 | 2018-08-24 | 傅花宁 | A kind of miniature precision directional blasting instrument |
| CN110497714A (en) * | 2018-05-19 | 2019-11-26 | 杨超 | A kind of pencil |
| CN110549769A (en) * | 2018-06-04 | 2019-12-10 | 鲍双林 | Wisdom blackboard writing pen |
| CN109878245A (en) * | 2019-03-07 | 2019-06-14 | 湖北工业大学 | A kind of mechanical pencil that can release and automatically retract automatically pen core |
| CN114141549A (en) * | 2021-11-26 | 2022-03-04 | 广东电网有限责任公司 | High-voltage discharge device |
| CN114141549B (en) * | 2021-11-26 | 2024-02-27 | 广东电网有限责任公司 | High-voltage discharge device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202976568U (en) | Multifunctional teaching pointer | |
| CN201670012U (en) | Geometry teaching ruler | |
| CN203331648U (en) | Compass for electric mathematical teaching | |
| CN207302405U (en) | A kind of mathematical education auxiliary teaching device | |
| CN202952720U (en) | Drawing plate used for mechanical drawing | |
| CN202233823U (en) | Multifunctional desk for teachers to teach | |
| CN202685686U (en) | Compass ruler for mathematics teaching | |
| CN204020324U (en) | Multifunctional teaching compasses | |
| CN201998683U (en) | Multifunctional ruler combined teaching aid | |
| CN208006558U (en) | A kind of mathematics diagraph | |
| CN201913963U (en) | Angular measurement plate | |
| CN207777944U (en) | A kind of computer installation for aided education | |
| CN206355502U (en) | A kind of hand-operated lifting structure of elliptical machine | |
| CN205439699U (en) | Multi -functional religion chi | |
| CN205149336U (en) | Dial plate automatic measure formula compasses | |
| CN204774237U (en) | University is tool slide for mathematical education | |
| CN202517940U (en) | Compasses | |
| CN209600128U (en) | A kind of mathematical studying auxiliary device | |
| CN202346128U (en) | Medical storage box | |
| CN203093515U (en) | Multifunctional teaching ruler compass diagram-drawing device | |
| CN201527729U (en) | Angle ruler | |
| CN206968250U (en) | Multifunction angle drawing appliance component | |
| CN207607277U (en) | A kind of teaching blackboard | |
| CN202436477U (en) | Reading bracket | |
| CN201015937Y (en) | Multi-function drawing board |
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: 20130605 Termination date: 20131217 |