CN204270538U - A kind of electrical teaching rod used for multimedia teaching - Google Patents
A kind of electrical teaching rod used for multimedia teaching Download PDFInfo
- Publication number
- CN204270538U CN204270538U CN201420653843.7U CN201420653843U CN204270538U CN 204270538 U CN204270538 U CN 204270538U CN 201420653843 U CN201420653843 U CN 201420653843U CN 204270538 U CN204270538 U CN 204270538U
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- CN
- China
- Prior art keywords
- tubular shell
- battery case
- chalk
- rod used
- slide block
- 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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Abstract
The utility model provides a kind of electrical teaching rod used for multimedia teaching, comprise tubular shell and base, the bottom of described tubular shell is the battery case installing battery, at battery case top, electroluminescent lamp is installed, described electroluminescent lamp is electrically connected with battery, U-shaped chute is provided with in described tubular shell, the tubular shell of the described corresponding side of U-shaped chute is provided with gear, outside battery case, middle part is provided with slide block, described slide block correspondence is arranged in U-shaped chute, arranged outside corresponding with slide block on battery case has tooth bar, described rack and pinion engagement, semisphere box is provided with on the top of described tubular shell, at the top of semisphere box, convex lens are installed, the bottom of base is provided with cavity, described cavity is closed by the bottom be arranged on below base.The beneficial effects of the utility model are that to solve the light that traditional laser lamp sends too small, well can not indicate the problem of the content of courses.
Description
Technical field
The utility model belongs to multimedia teaching facility field, especially relates to a kind of electrical teaching rod used for multimedia teaching.
Background technology
Along with the continuous progress and development of science and technology, multimedia teaching instead of traditional teaching gradually, in Multimedia Teaching, for instruction, the small instruments and tools all adopting laser pen etc. to have light source comes teaching notes on indicating projector or file, and this type of instrument is small and exquisite, is convenient for carrying.When the light is dusky or need to protrude display, the bright bright spot of the injection of laser lamp is very little, student is once not noting being not easy to find this bright spot, indicate not obvious, and serve as a teacher the content needing to give directions a lot of time, such sparklet can not meet actual needs completely, causes the problem that well can not indicate the content of courses, bring a lot of trouble to teacher like this, also result in a lot of puzzlements to student.Affect teaching efficiency.
Utility model content
The utility model, in order to solve the above-mentioned deficiency of prior art, provides a kind of electrical teaching rod used for multimedia teaching of adjustable bright size.
The technical solution of the utility model is: a kind of electrical teaching rod used for multimedia teaching, comprise tubular shell and base, the bottom of described tubular shell is the battery case installing battery, at battery case top, electroluminescent lamp is installed, described electroluminescent lamp is electrically connected with battery, U-shaped chute is provided with in described tubular shell, the tubular shell of the described corresponding side of U-shaped chute is provided with gear, outside battery case, middle part is provided with slide block, described slide block correspondence is arranged in U-shaped chute, arranged outside corresponding with slide block on battery case has tooth bar, described rack and pinion engagement, semisphere box is provided with on the top of described tubular shell, at the top of semisphere box, convex lens are installed, the bottom of base is provided with cavity, described cavity is closed by the bottom be arranged on below base.
Further, described bottom front end is provided with the close-fitting rubber plug with cavity, rubber plug is provided with circular elongated hole, in circular elongated hole, be placed with chalk, described circular elongated hole is identical with chalk diameter.
Further, described circular elongated hole length is less than chalk length.
Further, described bottom rear end is provided with draw ring.
Further, described cavity length is identical with chalk length.
The advantage that the utility model has and good effect are:
1, the electrical teaching rod used for multimedia teaching that provides of the utility model, the distance of the relative convex lens of electroluminescent lamp on regulating cell box can be carried out by adjusting gear, thus regulate the size of the light bright spot of electronic pointer injection, indicate the content of courses of the required instruction of teacher accurately, improve the efficiency of teaching of teacher, solve the bright size that traditional laser lamp sends too small, well can not indicate the problem of the content of courses.
2, the electrical teaching rod used for multimedia teaching that provides of the utility model, bottom is provided with for chalk being distinguished the rubber plug placed, not only solve the problem of carrying chalk at any time and chalk is separated, effectively prevent because mixed and disorderly chalk is stored, cause the mutual collision between chalk, discounting chalk.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure:
1, tubular shell 2, base 3, battery case
4, electroluminescent lamp 5, U-shaped chute 6, gear
7, slide block 8, tooth bar 9, semisphere box
10, convex lens 11, cavity 12, bottom
13, rubber plug 14, circular elongated hole 15, chalk
16, draw ring
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Fig. 1 the utility model structural representation, a kind of electrical teaching rod used for multimedia teaching, comprise tubular shell 1 and base 2, the bottom of described tubular shell 1 is the battery case 3 installing battery, at battery case 3 top, electroluminescent lamp 4 is installed, described electroluminescent lamp 4 is electrically connected with battery, U-shaped chute 5 is provided with in described tubular shell 1, the tubular shell 1 of the described U-shaped corresponding side of chute 5 is provided with gear 6, outside battery case 3, middle part is provided with slide block 7, described slide block 7 correspondence is arranged in U-shaped chute 5, arranged outside corresponding with slide block 7 on battery case 3 has tooth bar 8, described tooth bar 8 engages with gear 6, semisphere box 9 is provided with on the top of described tubular shell 1, at the top of semisphere box 9, convex lens 10 are installed, the bottom of base 2 is provided with cavity 11, described cavity 11 is closed by the bottom 12 be arranged on below base 2.Described bottom 12 front end is provided with the close-fitting rubber plug 13 with cavity 11, rubber plug 13 is provided with circular elongated hole 14, in circular elongated hole 14, be placed with chalk 15, described circular elongated hole 14 is identical with chalk 15 diameter.Described circular elongated hole 14 length is less than chalk 15 length.Described bottom 12 rear end is provided with draw ring 16.Described cavity 11 length is identical with chalk 15 length.
The course of work of this example: when using electronic pointer, owing to being provided with the tooth bar 8 engaged with gear 6 on battery case 3, so by regulating the gear 6 on tubular shell 1 to drive battery case 3 to move forward and backward, thus the distance of electroluminescent lamp 4 on regulating cell box 3 convex lens 5 relatively, and then the size of the light bright spot regulating electronic pointer to penetrate, indicate the content of courses of the required instruction of teacher accurately, by being provided with the rubber plug 13 for chalk 15 being distinguished placement on bottom 12, not only solve the problem of carrying chalk 15 at any time and by separated for chalk 15, effectively prevent because mixed and disorderly chalk 15 is stored, cause the mutual collision between chalk 15, because circular elongated hole 14 length is less than chalk 15 length, more convenient chalk 15 can be taken out, described bottom 12 rear end is provided with draw ring 16 can better bottom 12 be pulled out.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (5)
1. an electrical teaching rod used for multimedia teaching, comprise tubular shell (1) and base (2), it is characterized in that: the bottom of described tubular shell (1) is the battery case (3) installing battery, at battery case (3) top, electroluminescent lamp (4) is installed, described electroluminescent lamp (4) is electrically connected with battery, U-shaped chute (5) is provided with in described tubular shell (1), the tubular shell (1) of the corresponding side of described U-shaped chute (5) is provided with gear (6), middle part, battery case (3) outside is provided with slide block (7), described slide block (7) correspondence is arranged in U-shaped chute (5), tooth bar (8) is had in the upper arranged outside corresponding with slide block (7) of battery case (3), described tooth bar (8) engages with gear (6), semisphere box (9) is provided with on the top of described tubular shell (1), at the top of semisphere box (9), convex lens (10) are installed, the bottom of base (2) is provided with cavity (11), described cavity (11) is closed by the bottom (12) be arranged on below base (2).
2. electrical teaching rod used for multimedia teaching according to claim 1, it is characterized in that: be provided with and cavity (11) close-fitting rubber plug (13) in described bottom (12) front end, rubber plug (13) is provided with circular elongated hole (14), in circular elongated hole (14), be placed with chalk (15), described circular elongated hole (14) is identical with chalk (15) diameter.
3. electrical teaching rod used for multimedia teaching according to claim 2, is characterized in that: described circular elongated hole (14) length is less than chalk (15) length.
4. the electrical teaching rod used for multimedia teaching according to claim 1 or 2 or 3, is characterized in that: described bottom (12) rear end is provided with draw ring (16).
5. electrical teaching rod used for multimedia teaching according to claim 2, is characterized in that: described cavity (11) length is identical with chalk (15) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420653843.7U CN204270538U (en) | 2014-11-04 | 2014-11-04 | A kind of electrical teaching rod used for multimedia teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420653843.7U CN204270538U (en) | 2014-11-04 | 2014-11-04 | A kind of electrical teaching rod used for multimedia teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204270538U true CN204270538U (en) | 2015-04-15 |
Family
ID=52805392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420653843.7U Expired - Fee Related CN204270538U (en) | 2014-11-04 | 2014-11-04 | A kind of electrical teaching rod used for multimedia teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204270538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900113A (en) * | 2015-06-16 | 2015-09-09 | 邱兰 | Laser pen |
-
2014
- 2014-11-04 CN CN201420653843.7U patent/CN204270538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900113A (en) * | 2015-06-16 | 2015-09-09 | 邱兰 | Laser pen |
| CN104900113B (en) * | 2015-06-16 | 2017-12-29 | 新昌县合控科技有限公司 | Laser pen |
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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: 20150415 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |