CN202541105U - Blackboard with microphone power amplifier function - Google Patents
Blackboard with microphone power amplifier function Download PDFInfo
- Publication number
- CN202541105U CN202541105U CN 201220144016 CN201220144016U CN202541105U CN 202541105 U CN202541105 U CN 202541105U CN 201220144016 CN201220144016 CN 201220144016 CN 201220144016 U CN201220144016 U CN 201220144016U CN 202541105 U CN202541105 U CN 202541105U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- microphone
- microphones
- power amplifier
- fixed frame
- 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 discloses a blackboard with a microphone power amplifier function, and the blackboard comprises a blackboard body, wherein the blackboard body comprises four boards which can slide up and down, a fixing frame is arranged at the peripheral edges of the blackboard body, and is not contacted with a blackboard surface, a plurality of microphones which are uniformly distributed are arranged on three vertical fixed rods of the fixing frame, one end of the fixing frame is provided with a row of speakers, a plurality of microphones are arranged on a teacher desk at the front end of the blackboard body, the microphones and the speakers are connected together to be distributed at the back side of the blackboard body. The blackboard disclosed by the utility model is used for solving the inconvenient problem that a teacher is limited by the position of the microphone during the teaching, has a simple design, and is reasonable in structure; and the teacher is no longer limited by the position of the microphone during the teaching, and the blackboard is convenient to use.
Description
Technical field
The utility model relates to the blackboard for education technical field, specifically belongs to the blackboard that has microphone power amplifier function.
Background technology
Existing, the blackboard for education pattern in the classroom is a lot, and mainly being has a plate face and a plurality of plate faces that can slide up and down.Generally the people is many in lyceum, all loudspeaker and microphone need be installed.Have now and mainly on wall, lay loudspeaker, on lectern, place microphone.The lecturer is saying class hour like this, can not the better utilization blackboard, he will be as far as possible near the microphone on the lectern just can, use microphone.
The utility model content
The purpose of the utility model provides the blackboard that has microphone power amplifier function, has solved the teach problem of the inconvenience that receives the microphone position restriction of teacher, simplicity of design, and rational in infrastructure, teacher teaches and limited by microphone position, and is easy to use.
The technical scheme that the utility model adopts is following:
Have the blackboard of microphone power amplifier function, comprise blackboard, blackboard comprises four plate faces; Four plate faces can slide up and down, and the edge of described blackboard is provided with fixed frame, and fixed frame does not contact with blackboard surface; Establish a plurality of equally distributed microphones on three vertical fixed bars of described fixed frame; The fixed frame upper end is provided with row's loudspeaker, and the lectern of blackboard front end is provided with a plurality of microphones, and microphone is connected layout and is arranged at the blackboard back side with loudspeaker.
Compared with present technology, the beneficial effect of the utility model is following:
The utility model is provided with fixed frame at the blackboard edge, and the fixed frame upper end is provided with row's loudspeaker, and the lectern of blackboard front end is provided with a plurality of microphones, and microphone is connected layout and is arranged at the blackboard back side with loudspeaker.Teacher is saying class hour like this, just can face toward blackboard, easily teaches, and is limited by microphone position, not easy to use.
Description of drawings
Fig. 1 is the structural representation of the utility model;
The specific embodiment
Referring to accompanying drawing, have the blackboard 1 of microphone power amplifier function, comprise blackboard 1; Blackboard 1 comprises four plate faces, and four plate faces can slide up and down, and the edge of blackboard 1 is provided with fixed frame 2; Fixed frame 2 does not contact with blackboard 1 face, establishes a plurality of equally distributed microphones 4 on 2 three vertical fixed bars 3 of fixed frame, and fixed frame 2 upper ends are provided with row's loudspeaker 5; The lectern of blackboard 1 front end is provided with a plurality of microphones 4, and microphone 4 is connected layout and is arranged at blackboard 1 back side with loudspeaker 5.
Claims (1)
1. have the blackboard of microphone power amplifier function, comprise blackboard, blackboard comprises four plate faces; Four plate faces can slide up and down, and it is characterized in that: the edge of described blackboard is provided with fixed frame, and fixed frame does not contact with blackboard surface; Establish a plurality of equally distributed microphones on three vertical fixed bars of described fixed frame; The fixed frame upper end is provided with row's loudspeaker, and the lectern of blackboard front end is provided with a plurality of microphones, and microphone is connected layout and is arranged at the blackboard back side with loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144016 CN202541105U (en) | 2012-03-29 | 2012-03-29 | Blackboard with microphone power amplifier function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144016 CN202541105U (en) | 2012-03-29 | 2012-03-29 | Blackboard with microphone power amplifier function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202541105U true CN202541105U (en) | 2012-11-21 |
Family
ID=47161784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220144016 Expired - Fee Related CN202541105U (en) | 2012-03-29 | 2012-03-29 | Blackboard with microphone power amplifier function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202541105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180112607A (en) * | 2017-04-04 | 2018-10-12 | 박율리아 | Board having amplification apparatus |
-
2012
- 2012-03-29 CN CN 201220144016 patent/CN202541105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180112607A (en) * | 2017-04-04 | 2018-10-12 | 박율리아 | Board having amplification apparatus |
| KR101967233B1 (en) * | 2017-04-04 | 2019-04-10 | 박율리아 | Board having amplification apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Gang Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130329 |