CN205594917U - International trade megaphone of imparting knowledge to students - Google Patents
International trade megaphone of imparting knowledge to students Download PDFInfo
- Publication number
- CN205594917U CN205594917U CN201620202759.2U CN201620202759U CN205594917U CN 205594917 U CN205594917 U CN 205594917U CN 201620202759 U CN201620202759 U CN 201620202759U CN 205594917 U CN205594917 U CN 205594917U
- Authority
- CN
- China
- Prior art keywords
- audio amplifier
- megaphone
- international trade
- earphone
- microphone
- 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
Abstract
The utility model discloses an international trade megaphone of imparting knowledge to students relates to teaching equipment technical field, including audio amplifier and casing, the middle position on the lower side of casing is provided with the audio amplifier, the frequency control ware from left to right sets gradually between audio amplifier top and the casing top, the three control key of switch and record button, casing top left angle position is equipped with the antenna, casing left side and the right side intermediate position is equipped with the handle respectively and the earphone connects the hole, casing bottom intermediate position is equipped with the USB interface, this kind of international trade megaphone of imparting knowledge to students has the function of recorder and radio, it can record to press record button, radio station signal frequency can be accepted to the antenna, the volume of megaphone can be adjusted through the frequency control ware, connect the hole can make megaphone and earphone carry out the wired connection through the earphone, can make megaphone and other USB storage facilities be connected through the USB interface, be favorable to the use of megaphone in the international trade teaching, the public address function of megaphone can be realized through the audio amplifier.
Description
Technical field
This utility model relates to teaching equipment technical field, is specifically related to a kind of international trade teaching
Microphone.
Background technology
Microphone is as the term suggests being amplified sound exactly, the farther meaning of propagation, relatively
For audio amplifier, the sound penetration of microphone is higher.According to occupation mode: wired amplifying can be divided into
Device and wireless microphone；According to use: teaching class microphone can be divided into, class microphone of conducting a sightseeing tour,
Amusement class microphone.Microphone can be divided into polytype according to its volume, occupation mode and purposes,
It is respectively arranged with it and uses advantage place.Portable loudspeaker is limited because of shape size, loudspeaker, general merit
Rate all only has 3-8W.Wireless microphone and wired intercom then volume size is variant, uses
The most different, the applicable teacher of small volume, guide use, and hang over loins, make both hands play more
For freedom, its power is general also at 3W-8W.Bulky it is applicable to outdoor activity, summertime
The place that the flows of the people such as battalion, extracurricular speech are big, power is then at 35W-95W.Lithium bullhorn
It it is then the one being made in classifying according to its battery types used.It solve conventional dry cell batteries
Pollution problem to environment, it mainly uses mobile phone lithium power technology to power to microphone, as in
State's Application No. CN 203673687 U discloses a kind of multi-functional teaching microphone, it is provided that
A kind of function with recorder, radio and MP3, amplifies and takes double voice coil to design, merit
Rate is powerful, and low frequency is full, and intermediate frequency is round and smooth, it is ensured that the quality of study of attending class, and facilitates teacher to carry,
Do not affect use, but the microphone of this technology does not have USB interface and can make microphone
The function being attached with other USB storage facilities, the scope of application compares limitation.
Utility model content
The purpose of this utility model is to provide a kind of international trade teaching microphone, existing to solve
There is the above-mentioned multinomial defect caused in technology.
A kind of international trade teaching microphone, including audio amplifier and housing, described housing lower middle
Position is provided with audio amplifier, from left to right sets gradually power and adjust between audio amplifier top and case top
Joint device, on and off switch and three control keys of record button, case top left comer position is provided with antenna,
On the left of housing and centre position, right side is respectively equipped with handle and earphone connects hole, housing bottom interposition
Install USB interface.
Preferably, described audio amplifier is double voice coil audio amplifier.
Preferably, the circuit connection structure between described three control keys is power governor and record
It is connected in parallel between sound button, is formed between on and off switch and power governor and record button
Parallel circuit in series connects.
Preferably, described on and off switch, earphone connect the circuit between hole and USB interface and connect knot
Structure is that earphone connects hole and USB interface is connected in parallel, and on and off switch and earphone connect hole and USB interface
Between formed parallel circuit in series connect.
Preferably, the section of described handle is U-shaped.
It is an advantage of the current invention that: this kind of international trade teaching microphone has recorder and radio reception
The function of machine, presses record button and can record, and antenna can accept radio signals frequency,
The volume of microphone can be regulated by power governor, connect hole by earphone and can make microphone
Carry out wired connection with earphone, microphone can be made to store with other USB by USB interface and set
For being attached, beneficially microphone use in international trade is imparted knowledge to students, permissible by audio amplifier
Realize the sound amplification function of microphone.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of international trade described in the utility model teaching microphone
Figure.
Fig. 2 be a kind of international trade described in the utility model teaching microphone internal control and
The circuit diagram of receiving element.
Wherein: 1-audio amplifier, 2-housing, 3-antenna, 4-power governor, 5-on and off switch,
6-record button, 7-earphone connects hole, 8-USB interface, 9-handle.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, to reach purpose easy with effect
In clear understanding, below in conjunction with detailed description of the invention, this utility model is expanded on further.
As depicted in figs. 1 and 2, a kind of international trade teaching microphone, including audio amplifier 1 and shell
Body 2, position, described housing 2 lower middle is provided with audio amplifier 1, audio amplifier 1 top and housing 2
Power governor 4, on and off switch 5 and record button 6 is from left to right set gradually between top
Three control keys, housing 2 top left corner position is provided with antenna 3, on the left of housing 2 and right side
Between position be respectively equipped with handle 9 and earphone connects hole 7, bottom housing 2, centre position is provided with USB
Interface 8, this kind of international trade teaching microphone has recorder and wireless function, presses
Record button 6 can be recorded, and antenna 3 can accept radio signals frequency, passes through power
Actuator 4 can regulate the volume of microphone, connects hole 7 by earphone and can make microphone and ear
Machine carries out wired connection, microphone can be made to store with other USB by USB interface 8 and set
For being attached, beneficially microphone use in international trade is imparted knowledge to students, can by audio amplifier 1
To realize the sound amplification function of microphone.
It should be noted that described audio amplifier 1 is double voice coil audio amplifier, audio amplifier 1 sound of this structure
Matter is effective.
Additionally, the section of described handle 9 is U-shaped, handle 9 appearance looks elegant of this structure,
Convenient use.
Based on above-mentioned, this kind of international trade teaching microphone has recorder and wireless merit
Can, to press record button 6 and can record, antenna 3 can accept radio signals frequency,
The volume of microphone can be regulated by power governor 4, connect hole 7 by earphone and can make expansion
Sound device and earphone carry out wired connection, can make microphone and other USB by USB interface 8
Storage facilities is attached, beneficially microphone use in international trade is imparted knowledge to students, and passes through sound
Case 1 can realize the sound amplification function of microphone.
As known by the technical knowledge, this utility model can be by other essence without departing from its spirit
Or the embodiment of essential feature realizes.Therefore, embodiment disclosed above, with regard to each side
For face, all it is merely illustrative, is not only.All in the range of this utility model
Or be all included in the utility model being equal to the change in the range of this utility model.
Claims (5)
1. an international trade teaching microphone, including audio amplifier and housing, it is characterised in that
Position, described housing lower middle is provided with audio amplifier, between audio amplifier top and case top from a left side to
The right side sets gradually power governor, on and off switch and three control keys of record button, case top
Left comer position is provided with antenna, and on the left of housing and centre position, right side is respectively equipped with handle and earphone connects
Hole, housing bottom centre position is provided with USB interface.
A kind of international trade teaching microphone the most according to claim 1, its feature exists
In: described audio amplifier is double voice coil audio amplifier.
A kind of international trade teaching microphone the most according to claim 1, its feature exists
In: the circuit connection structure between described three control keys be power governor and record button it
Between be connected in parallel, between on and off switch and power governor and record button formed parallel circuit
It is connected in series.
A kind of international trade teaching microphone the most according to claim 1, its feature exists
In: it is earphone that described on and off switch, earphone connect the circuit connection structure between hole and USB interface
Connecing hole and USB interface is connected in parallel, on and off switch and earphone connect and are formed between hole and USB interface
Parallel circuit in series connect.
A kind of international trade teaching microphone the most according to claim 1, its feature exists
In: the section of described handle is U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620202759.2U CN205594917U (en) | 2016-03-16 | 2016-03-16 | International trade megaphone of imparting knowledge to students |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620202759.2U CN205594917U (en) | 2016-03-16 | 2016-03-16 | International trade megaphone of imparting knowledge to students |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205594917U true CN205594917U (en) | 2016-09-21 |
Family
ID=56928839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620202759.2U Expired - Fee Related CN205594917U (en) | 2016-03-16 | 2016-03-16 | International trade megaphone of imparting knowledge to students |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205594917U (en) |
-
2016
- 2016-03-16 CN CN201620202759.2U patent/CN205594917U/en not_active Expired - Fee Related
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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: 20160921 Termination date: 20170316 |