CN203718548U - Five-line projection lamp for blackboard - Google Patents
Five-line projection lamp for blackboard Download PDFInfo
- Publication number
- CN203718548U CN203718548U CN201420089575.0U CN201420089575U CN203718548U CN 203718548 U CN203718548 U CN 203718548U CN 201420089575 U CN201420089575 U CN 201420089575U CN 203718548 U CN203718548 U CN 203718548U
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- CN
- China
- Prior art keywords
- blackboard
- lamp
- housing
- lines
- projecting lamps
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a five-line projection lamp for a blackboard. The five-line projection lamp consists of a lamp base (1) and a blackboard frame clamp (2) arranged on the lamp base (1), wherein the blackboard frame clamp (2) is a U-shaped sectional body which is provided with a hand-operated bolt (3) through a thread; the lamp base (1) consists of a shell (11) and an illumination lamp arranged in the shell (11); five light-transmitting gaps (12) are formed in the light projection side of the shell (11). The five-line projection lamp can be used for writing staff without drawing five lines on the blackboard, so that teaching time is saved, waste of the learning time of students is avoided, and influence on the teaching of other subjects is also eliminated; when the lamp is turned on, five parallel lines can be projected on the blackboard, and after the lamp is turned off, the five parallel lines disappear, and the blackboard is used as a normal blackboard; five lines can also be rapidly and conveniently drawn along the five projected lines.
Description
Technical field
The utility model relates to teaching equipment, is specifically related to a kind of five line projection's lamps.
Background technology
Before writing staff on blackboard, music teachers needs first on blackboard, first to draw five lines at every turn, and this can take certain instructional blocks of time.When revising at every turn and wiping staff, also five lines can be wiped out simultaneously, also need again to draw five lines before again writing staff, drawing five parallel lines that spacing equates relatively wastes time and energy, and has both taken instructional blocks of time, also wastes student's learning time.Some schools are convenient for music teaching, can paint and on blackboard, finish five lines so that teacher writes staff, normally impart knowledge to students but such blackboard can affect other section's object, are unfavorable for improving the utilization rate in classroom.
Summary of the invention
The purpose of this utility model is to provide one and need on blackboard, draw five lines and just can write staff, saves instructional blocks of time, does not waste the learning time of student's preciousness, does not affect the five line projecting lamps for blackboard of other subject teaching.
Technical solution of the present utility model is: it is made up of lamp holder and the blackboard frame folder being arranged on lamp holder, blackboard frame folder is twisted the cross section U-shaped body of bolt for hand being installed by screw thread, lamp holder is made up of housing and the illuminating lamp being arranged in housing, and the light of housing is launched side and is provided with five printing opacity gaps.
Technique effect of the present utility model is: use it need on blackboard, not draw five lines and just can write staff, more save instructional blocks of time, do not waste student's learning time, also do not affect other section's object teaching.While turning on lamp, can on blackboard, project five parallel lines, shut five parallel lines after lamp and disappear, use the same with normal blackboard.Also can draw five lines along five line drawings that project, draw five lines more quick and convenient.Only projecting lamp need to be arranged on needs to project the position of five lines to open switch just passable again on blackboard, write staff and setting-out is along the line all convenient feasible, does not affect writing and showing of other content of courses.
brief description of the drawings
Fig. 1 is the utility model embodiment three-dimensional structure diagram.
Detailed description of the invention
As shown in Figure 1, it is made up of lamp holder 1 and the blackboard frame folder 2 being arranged on lamp holder 1, blackboard frame folder 2 is twisted the cross section U-shaped body of bolt 3 for hand being installed by screw thread, lamp holder 1 is made up of housing 11 and the illuminating lamp being arranged in housing 11, and the light of housing 11 is launched side and is provided with five printing opacity gaps 12.
It is the inclined-plane that favours blackboard surface that the light of housing 1 is launched side.Article five, printing opacity gap 12 be respectively near blackboard side wide, away from the narrow wedge-shaped crevice of blackboard side.Article five, the adjacent spacing in printing opacity gap 12 is little near blackboard side, large away from blackboard side.Housing 1 is provided with power line jack 13 and switch 14, and the two ends of switch 14 are connected with one end of power line jack 13 and one end of illuminating lamp respectively, and the other end of illuminating lamp is connected with the other end of power line jack 13.Hand is twisted turn one's head for end is provided with 31 plum blossom bolt of bolt 3.
Twist bolt 3 by the hand on blackboard frame folder 2 and projection lamp can be stuck in to position suitable on the side of blackboard frame, by the two ends of power line respectively with supply socket and housing 1 on power line jack 13 plug, open the switch on housing 1, projection lamp is just can be on blackboard oblique projects that five stripe pitch equate, the consistent projection line of line thickness, and teacher just can write staff on blackboard.
Claims (6)
1. five line projecting lamps for blackboard, it is characterized in that: it is by lamp holder (1) and be arranged on blackboard frame folder (2) formation on lamp holder (1), blackboard frame folder (2) is twisted the cross section U-shaped body of bolt (3) for hand being installed by screw thread, lamp holder (1) is by housing (11) and be arranged on the illuminating lamp formation in housing (11), and the light of housing (11) is launched side and is provided with five printing opacity gaps (12).
2. five line projecting lamps for blackboard as claimed in claim 1, it is the inclined-plane that favours blackboard surface that the light that it is characterized in that described housing (1) is launched side.
3. five line projecting lamps for blackboard as claimed in claim 1, it is characterized in that described five printing opacity gaps (12) be respectively near blackboard side wide, away from the narrow wedge-shaped crevice of blackboard side.
4. five line projecting lamps for blackboard as claimed in claim 1, is characterized in that the adjacent spacing in described five printing opacity gaps (12) is little near blackboard side, large away from blackboard side.
5. five line projecting lamps for blackboard as claimed in claim 1, it is characterized in that described housing (1) is provided with power line jack (13) and switch (14), the two ends of switch (14) are connected with one end of power line jack (13) and one end of illuminating lamp respectively, and the other end of illuminating lamp is connected with the other end of power line jack (13).
6. five line projecting lamps for blackboard as claimed in claim 1, is characterized in that described hand twists turn one's head for end the is provided with plum blossom bolt of (31) of bolt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089575.0U CN203718548U (en) | 2014-03-01 | 2014-03-01 | Five-line projection lamp for blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089575.0U CN203718548U (en) | 2014-03-01 | 2014-03-01 | Five-line projection lamp for blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718548U true CN203718548U (en) | 2014-07-16 |
Family
ID=51157695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089575.0U Expired - Fee Related CN203718548U (en) | 2014-03-01 | 2014-03-01 | Five-line projection lamp for blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611191A (en) * | 2021-09-14 | 2021-11-05 | 广州南洋理工职业学院 | English teaching aid beneficial to improving English teaching efficiency |
-
2014
- 2014-03-01 CN CN201420089575.0U patent/CN203718548U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611191A (en) * | 2021-09-14 | 2021-11-05 | 广州南洋理工职业学院 | English teaching aid beneficial to improving English teaching efficiency |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20180301 |