CN204965783U - Can respond to teaching public -address amplifier of switching - Google Patents
Can respond to teaching public -address amplifier of switching Download PDFInfo
- Publication number
- CN204965783U CN204965783U CN201520628041.5U CN201520628041U CN204965783U CN 204965783 U CN204965783 U CN 204965783U CN 201520628041 U CN201520628041 U CN 201520628041U CN 204965783 U CN204965783 U CN 204965783U
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- public
- amplifier
- address
- teaching
- sound amplifier
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Abstract
The utility model belongs to the technical field of teaching equipment and a can respond to teaching public -address amplifier of switching is disclosed, including public -address amplifier body, LED display screen, power volume control switch, USB interface, TF draw -in groove, antenna, audio amplifier, infrared ray reception device, waistband couple, infrared transmitting device and belt buckle, public -address amplifier body upside is provided with the antenna, antenna one side is provided with power volume control switch, power volume control switch one side is provided with swift recording switch, it is provided with the USB interface swiftly to record switch one side, USB interface one side is provided with the audio frequency jack, audio frequency jack one side is provided with the TF draw -in groove, public -address amplifier body outside upper portion is provided with the LED display screen, LED display screen one side is provided with the control key. The utility model discloses an infrared ray reception device, when the public -address amplifier not when the within range is accepted to the infrared ray, the public -address amplifier has the advantage that the public -address amplifier can not be in long -time standby state, the consumption of having practiced thrift the electric quantity with self -closing.
Description
Technical field
The utility model relates to a kind of public-address amplifier for teaching, is specifically related to a kind of public-address amplifier for teaching responding to opening and closing, belongs to teaching equipment technical field.
Background technology
Along with the development of society, improving constantly of living standards of the people, science and technology brings various enjoyment to the mankind, also should share the enjoyment of some high-tech products as the people's teacher." talk like a Dutch uncle ", " mouth parched and tongue scorched " be the people's teacher's paying hard mankind's educational undertaking, along with the continuous increase of student's quantity, the expansion in classroom, make that teachers' is bitter to the taste more bitter, as during the last ten years always for educational undertaking produces the Qiao Yi master's master department of electronic product, make an uproar to alleviate this dry tongue of teachers, the misery of abscess of throat, through research and development for many years, design and manufacture a kind of portable public-address amplifier for teaching.
Present University classroom student's ratio is more, and classroom is too large, and teacher speaks and often can not hear clearly, take loudspeaker apparatus in some classrooms, but be all be fixed on lectern, position is fixed, teacher is once stand away, amplifying effect will be very poor, and the matter of loudspeaker apparatus is put not high, often has noise, and distortion situation is obvious, be unfavorable for the expansion of teaching, and generally all configure sound amplifier in lyceum, to ensure the effect of listening to the teacher of rear portion, classroom personnel.The switch of the sound amplifier in existing classroom is hand switch, opened and closed by teacher, but, teacher is saying after class, because of answer classmate enquirement or because of other reasons, non-powered-down causes sound amplifier in running order for a long time, cause energy dissipation, make sound amplifier easily break down simultaneously.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, a kind of public-address amplifier for teaching responding to opening and closing is provided, by infrared ray receiving device, when sound amplifier does not accept in scope at infrared ray, sound amplifier will cut out automatically, there is the advantage that sound amplifier can not be in long-time holding state, saved the consumption of electricity, effectively can solve the problem in background technology.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
The utility model provides a kind of public-address amplifier for teaching responding to opening and closing, comprise sound amplifier body, LED display, power supply level setting switches, USB interface, TF draw-in groove, antenna, audio amplifier, infrared ray receiving device, Shackle on waist band, infrared transmitting device and belt buckle, antenna is provided with on the upside of described sound amplifier body, described antenna side is provided with power supply level setting switches, described power supply level setting switches side is provided with quick recording switch, described quick recording switch side is provided with USB interface, described USB interface side is provided with audio jack, described audio jack side is provided with TF draw-in groove, described sound amplifier body outer upper is provided with LED display, described LED display side is provided with operating key.
As a kind of optimal technical scheme of the present utility model, described sound amplifier body housing is made up of plastic material and thickness is less than 1cm.
As a kind of optimal technical scheme of the present utility model, described sound amplifier body side is provided with audio amplifier, and described audio amplifier is rounded.
As a kind of optimal technical scheme of the present utility model, described sound amplifier body side is provided with Shackle on waist band, and described sound amplifier body side is provided with belt buckle, and described belt buckle is fixed by holder.
As a kind of optimal technical scheme of the present utility model, described sound amplifier body side is provided with infrared transmitting device and infrared ray receiving device, described infrared transmitting device is removable lay down and on be provided with emission switch.
The beneficial effect that the utility model reaches is: a kind of public-address amplifier for teaching responding to opening and closing, by infrared ray receiving device, when sound amplifier does not accept in scope at infrared ray, sound amplifier will cut out automatically, there is the advantage that sound amplifier can not be in long-time holding state, saved the consumption of electricity.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.
In the accompanying drawings:
Fig. 1 is a kind of public-address amplifier for teaching one-piece construction schematic diagram responding to opening and closing described in the utility model embodiment;
Fig. 2 is a kind of public-address amplifier for teaching rear view responding to opening and closing described in the utility model embodiment;
Number in the figure: 1, sound amplifier body; 2, LED display; 3, power supply level setting switches; 4, rapid switch; 5, USB interface; 6, audio jack; 7, TF draw-in groove; 8, receiving key; 9, antenna; 10, audio amplifier; 11, infrared ray receiving device; 12, Shackle on waist band; 13, Shackle on waist band; 14 infrared transmitting devices; 15, holder; 16, belt buckle; 17, emission switch.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
Embodiment: refer to Fig. 1-2, a kind of public-address amplifier for teaching responding to opening and closing of the utility model, comprise sound amplifier body 1, LED display 2, power supply level setting switches 3, USB interface 5, TF draw-in groove 7, antenna 9, audio amplifier 10, infrared ray receiving device 10, Shackle on waist band 13, infrared transmitting device 14 and belt buckle 16, antenna 9 is provided with on the upside of described sound amplifier body 1, described antenna 9 side is provided with power supply level setting switches 3, described power supply level setting switches 3 side is provided with quick recording switch 4, described quick recording switch 4 side is provided with USB interface 5, described USB interface 5 side is provided with audio jack 6, described audio jack 6 side is provided with TF draw-in groove 7, described sound amplifier body 1 outer upper is provided with LED display 2, described LED display 2 side is provided with operating key 12.
Described sound amplifier body 1 shell is made up of plastic material and thickness is less than 1cm, alleviates the weight of sound amplifier body 1, thus has the advantage that volume is little, lightweight, sound is large, electric power is sufficient, good looking appearance is generous.Described sound amplifier body 1 side is provided with audio amplifier 10, and described audio amplifier 10 is rounded, by audio amplifier 10 amplify double voice coil design, power is powerful, and low frequency is full, and intermediate frequency is round and smooth, ensure attend class study quality.Described sound amplifier body 1 side is provided with Shackle on waist band 13, described sound amplifier body 1 side is provided with belt buckle 16, described belt buckle 16 is fixed by holder 15, waistband can be hung up by Shackle on waist band 13, belt buckle 16 can be buckled on belt, make sound amplifier body 1 use like this and carry more convenient, thus improve practicality of the present utility model.Described sound amplifier body 1 side is provided with infrared transmitting device 14 and infrared ray receiving device 11, described infrared transmitting device 14 is removable lay down and on be provided with emission switch 17, by opening emission switch 17, infrared transmitting device 14 launches infrared ray, when sound amplifier does not accept in scope at infrared ray, sound amplifier will cut out automatically, have the advantage that sound amplifier can not be in long-time holding state, save the consumption of electricity.
It should be noted that, the utility model is a kind of public-address amplifier for teaching responding to opening and closing, during use, opening power level setting switches 3, waistband can be hung up by Shackle on waist band 13, belt buckle 16 can be buckled on belt, make sound amplifier body 1 use like this and carry more convenient, open emission switch and receiving key, being disassembled by infrared transmitting device 14 is placed on dais, like this at dais about 3 meters can use loudspeaker, when sound amplifier does not accept in scope at infrared ray, sound amplifier will cut out automatically, there is the advantage that sound amplifier can not be in long-time holding state, save the consumption of electricity, and structure is simple, reasonable in design, process easy, dependable performance, work efficiency is high.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. can respond to the public-address amplifier for teaching of opening and closing for one kind, comprise sound amplifier body (1), LED display (2), power supply level setting switches (3), USB interface (5), TF draw-in groove (7), antenna (9), audio amplifier (10), infrared ray receiving device (10), Shackle on waist band (13), infrared transmitting device (14) and belt buckle (16) its feature with, described sound amplifier body (1) upside is provided with antenna (9), described antenna (9) side is provided with power supply level setting switches (3), described power supply level setting switches (3) side is provided with quick recording switch (4), described quick recording switch (4) side is provided with USB interface (5), described USB interface (5) side is provided with audio jack (6), described audio jack (6) side is provided with TF draw-in groove (7), described sound amplifier body (1) outer upper is provided with LED display (2), described LED display (2) side is provided with operating key (12).
2. a kind of public-address amplifier for teaching responding to opening and closing according to claim 1, is characterized in that, described sound amplifier body (1) shell is made up of plastic material and thickness is less than 1cm.
3. a kind of public-address amplifier for teaching responding to opening and closing according to claim 1, is characterized in that, described sound amplifier body (1) side is provided with audio amplifier (10), and described audio amplifier (10) is rounded.
4. a kind of public-address amplifier for teaching responding to opening and closing according to claim 3, it is characterized in that, described sound amplifier body (1) side is provided with Shackle on waist band (13), described sound amplifier body (1) side is provided with belt buckle (16), and described belt buckle (16) is fixed by holder (15).
5. a kind of public-address amplifier for teaching responding to opening and closing according to claim 1, it is characterized in that, described sound amplifier body (1) side is provided with infrared transmitting device (14) and infrared ray receiving device (10), described infrared transmitting device (14) is removable lay down and on be provided with emission switch (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628041.5U CN204965783U (en) | 2015-08-19 | 2015-08-19 | Can respond to teaching public -address amplifier of switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628041.5U CN204965783U (en) | 2015-08-19 | 2015-08-19 | Can respond to teaching public -address amplifier of switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204965783U true CN204965783U (en) | 2016-01-13 |
Family
ID=55060833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520628041.5U Expired - Fee Related CN204965783U (en) | 2015-08-19 | 2015-08-19 | Can respond to teaching public -address amplifier of switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204965783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108650607A (en) * | 2018-07-10 | 2018-10-12 | 张晓蕾 | A kind of indoor instruction Portable loudspeaker |
| CN109769190A (en) * | 2019-03-10 | 2019-05-17 | 赵洁 | A kind of public address equipment with anti-interference function |
-
2015
- 2015-08-19 CN CN201520628041.5U patent/CN204965783U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108650607A (en) * | 2018-07-10 | 2018-10-12 | 张晓蕾 | A kind of indoor instruction Portable loudspeaker |
| CN109769190A (en) * | 2019-03-10 | 2019-05-17 | 赵洁 | A kind of public address equipment with anti-interference function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Ningbo Inventor before: Chen Bin |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160525 Address after: 510400 Guangdong city of Guangzhou province Liwan District West Long Industrial Zone No. 3 West Road two Patentee after: Guangzhou Bosheng Electronic Technology Development Co. Ltd. Address before: 311804 Zhejiang city of Shaoxing province Zhuji City mountain village town No. 208 bamboo shed oil Patentee before: Chen Bin |
|
| 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: 20160113 Termination date: 20170819 |