CN201919152U - Automatic on-off energy-saving megaphone - Google Patents
Automatic on-off energy-saving megaphone Download PDFInfo
- Publication number
- CN201919152U CN201919152U CN2011200113571U CN201120011357U CN201919152U CN 201919152 U CN201919152 U CN 201919152U CN 2011200113571 U CN2011200113571 U CN 2011200113571U CN 201120011357 U CN201120011357 U CN 201120011357U CN 201919152 U CN201919152 U CN 201919152U
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- CN
- China
- Prior art keywords
- gravity switch
- wireless transmitter
- energy
- loudspeaker
- metal
- 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 relates to an automatic on-off megaphone. The automatic on-off energy-saving megaphone comprises a host machine, a wireless transmitter in electrical signal connection with the host machine and a microphone, and further comprises a gravity switch, the gravity switch is connected in series with a wireless transmitter circuit, a conductor disconnected in the middle is arranged in the gravity switch, a metal rolling body capable of rolling freely and communicating the conductor disconnected in the middle is arranged in the gravity switch. In the utility model, the gravity switch is connected in series with the wireless transmitter circuit of a conventional megaphone, the wireless transmitter circuit is switched on or off by utilizing the characteristic that the metal body in the gravity switch slides downwards under the action of the gravity, the automatic on/off is realized and the electrical quantity loss caused when a teacher forgets to close the wireless transmitter is avoided.
Description
Technical field
The utility model relates to loudspeaker, but is specifically related to a kind of loudspeaker of automatic power on-off.
Background technology
Loudspeaker is school teacher's public address equipment commonly used of giving lessons, comprise main frame, wireless launcher and microphone three parts, wherein wireless launcher is taken or hangs between waist by teacher giving lessons often, the grafting microphone talk, many times, teacher says and can put down micropkonic wireless launcher class hour midway and microphone carries out writing on the blackboard or does experiment, but do not close the power supply of wireless launcher, cause the waste of battery electric quantity, cause that battery does not but have when needs use loudspeaker, and the abandoning of a large amount of old and useless batterys, also can cause environmental pollution, wireless launcher and microphone are placed on the dais as keeping "on" position in addition, can cause a large amount of resonance noise, influence the on class normal of teachers and students.
The utility model content
But technical problem to be solved in the utility model provides a kind of loudspeaker of automatic power on-off, this auto switching bullhorn gravity switch of on the micropkonic wireless transmitter circuits of routine, connecting, utilize the metal rolling element in the gravity switch to be subjected to the characteristic of gravity meeting rolls downward to be switched on or switched off the circuit of wireless launcher, make the battery of wireless launcher can more permanent use, reach purpose of energy saving.
For solving the problems of the technologies described above, the utility model is realized by the following technical solutions:
The energy-conservation loudspeaker of a kind of automatic power on-off, comprise main frame, the wireless launcher and the microphone that are connected with the main frame signal of telecommunication, also comprise gravity switch, described gravity switch and wireless transmitter circuits series connection, there is the middle part to disconnect the conductor of connection in the gravity switch, but also has free rolling the middle part can be disconnected the metal rolling element of the conductor connection that connects in the described gravity switch.
Described gravity switch comprises shell body, in the gravity switch middle part disconnect the conductor that connects be relative fixed in shell body about two sheet metals, the spacing of two metal sheets upper end is greater than the spacing of lower end, the minimum diameter of the metal rolling element in the gravity switch is greater than the spacing of the lower end of two metal sheets, and two metal sheets is connected in the wireless transmitter circuits successively.
Being shaped as of described metal rolling element is cylindrical or spherical.
Described gravity switch shell body is plastic casing or Wood shell.
The utlity model has following beneficial effect:
(1) the utility model gravity switch of on the micropkonic wireless transmitter circuits of routine, connecting, utilize the metal rolling element in the gravity switch to be subjected to the characteristic of gravity rolling to be switched on or switched off the circuit of wireless launcher automatically, solved because of forgetting and closed the wireless launcher power supply, or uncomfortable waste of closing the reflector battery electric quantity that transmitter power causes in the process such as writing on the blackboard, make that battery can more lasting use, saved electric energy;
(2) the utility model solved on class, putting down reflector midway and not closing a large amount of resonance noise puzzlements that transmitter power causes in the conference process, avoided influence of noise pollution classroom or meeting-place;
(3) the utility model is because battery can use more lastingly, and the generation of old and useless battery has just been lacked a lot, can reduce abandoning of old and useless battery like this, has reduced the pollution to environment.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model wireless launcher.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.Those skilled in the art should be understandable that, gravity switch in the utility model is except can being used for micropkonic automatic power on-off, the any power consumption equipment that can hold up easily and keep flat gravity switch in the utility model of all can connecting, realize the automatic power on-off function, for example broadcast receiver, recorder etc.
The utility model comprises main frame, wireless launcher, microphone.Also be in series with gravity switch 1 in the circuit of wireless launcher.
Fig. 1 is the electrical block diagram of the utility model wireless launcher.As shown in the figure, gravity switch shell body 5 is a plastic casing, the cross section of shell body 5 is wide at the top and narrow at the bottom trapezoidal, left side sheet metal 2 and right sheet metal 3 are individually fixed in about 5 two inclined-planes of shell body, the top of two sheet metals connects an end of the circuit of wireless launcher respectively, make the circuit series connection of gravity switch 1 and wireless launcher, two sheet metal lower ends keep certain spacing, cylindrical metal rolling element 4 is positioned at gravity switch, be not fixed together with any parts, can arbitrarily roll, and the shortest internal diameter of columniform metal rolling element 4 is greater than the spacing of left sheet metal 2 lower ends and right sheet metal 3 lower ends.
Gravity switch 1 is installed in the wireless launcher, the bottom surface of the broad of gravity switch 1 is towards the top of wireless launcher, narrower bottom surface is towards the bottom of wireless launcher, when wireless launcher is vertically placed, metal rolling element 4 is rolled to the bottom of gravity switch downwards at the effect lower edge of gravity sheet metal, be stuck between left sheet metal 2 and the right sheet metal 3, automatically the circuit of wireless launcher is connected, when wireless launcher is fallen down horizontal positioned, metal rolling element 4 leaves the bottom of gravity switch under the effect of gravity, separate with two metal sheets, the circuit of wireless launcher is disconnected.
Claims (4)
1. energy-conservation loudspeaker of automatic power on-off, comprise main frame, the wireless launcher and the microphone that are connected with the main frame signal of telecommunication, it is characterized in that: also comprise gravity switch (1), described gravity switch and wireless transmitter circuits series connection, there is the middle part to disconnect the conductor of connection in the gravity switch, but also has free rolling the middle part can be disconnected the metal rolling element (4) of the conductor connection that connects in the described gravity switch.
2. the energy-conservation loudspeaker of a kind of automatic power on-off according to claim 1, it is characterized in that: described gravity switch comprises shell body (5), in the gravity switch middle part disconnect the conductor that connects be relative fixed in shell body (5) about two sheet metals, the spacing of two metal sheets upper end is greater than the spacing of lower end, the minimum diameter of the metal rolling element (4) in the gravity switch (1) is greater than the spacing of the lower end of two metal sheets, and two metal sheets is connected in the wireless transmitter circuits successively.
3. the energy-conservation loudspeaker of a kind of automatic power on-off according to claim 2 is characterized in that: being shaped as of described metal rolling element (4) is cylindrical or spherical.
4. the energy-conservation loudspeaker of a kind of automatic power on-off according to claim 3 is characterized in that: described gravity switch shell body is plastic casing or Wood shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200113571U CN201919152U (en) | 2011-01-14 | 2011-01-14 | Automatic on-off energy-saving megaphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200113571U CN201919152U (en) | 2011-01-14 | 2011-01-14 | Automatic on-off energy-saving megaphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201919152U true CN201919152U (en) | 2011-08-03 |
Family
ID=44418940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200113571U Expired - Fee Related CN201919152U (en) | 2011-01-14 | 2011-01-14 | Automatic on-off energy-saving megaphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201919152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907760A (en) * | 2019-12-09 | 2020-03-24 | 郑州固峰电力器材有限公司 | Electric power intelligent safety tool on-site supervision and management system |
-
2011
- 2011-01-14 CN CN2011200113571U patent/CN201919152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907760A (en) * | 2019-12-09 | 2020-03-24 | 郑州固峰电力器材有限公司 | Electric power intelligent safety tool on-site supervision and management system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20140114 |