CN206283670U - A kind of light public address set for imparting knowledge to students - Google Patents

Abstract

The utility model relates to a portable sound amplifying device for teaching. A sound input processor is arranged at the bottom of the inner cavity of the sound amplifying box, a speaker is arranged on one side of the sound input processor, and a sound diffuser hole is arranged on one side of the speaker. It is arranged on one side of the amplifying box, and the other side of the speaker is provided with a PLC controller, the inner cavity of the PLC controller is provided with a signal receiving and processing device, the top of the inner cavity of the amplifying box is provided with a rotating shaft, and the amplifying box near the handle of the rotating shaft There is a charging socket on the side, the top of the rotating shaft is connected to the first telescopic sleeve, there is a groove on one side of the first telescopic sleeve, and a microphone placement slot is provided on the other side of the first telescopic sleeve, so that the height of the microphone can be adjusted freely to meet It can be used by people of different heights, and can be rotated for placement, which improves the sound quality, improves the sound amplification effect, reduces the labor intensity of the teacher, and can detect the air quality in the classroom and remind it, which is beneficial to the health of students and teachers. The design is more Humanized, light and practical.

Description

A portable loudspeaker device for teaching

technical field

The utility model relates to a portable loudspeaker device for teaching, which belongs to the field of teaching equipment.

Background technique

Teaching is an important link for schools to achieve educational goals and complete educational tasks, and it is also the main content of education. There are many ways to acquire knowledge that are beneficial to students' physical and mental development, such as school teaching, extracurricular activities, various forms of labor, activities organized by student collectives, Social welfare activities, family activities, etc., have become widely used methods of school education activities in modern education. Various methods interact to affect students' development, but the main classroom for students' learning is still classroom teaching, which is essentially a kind of " Cognitive activity" since the twentieth century.

Audio amplification is an indispensable engineering and technical means for social activities and daily work, such as multimedia teaching, conferences, variety shows, outdoor gatherings, etc. As an indispensable tool for multimedia teaching, audio amplification devices play a very important role. Most of the audio devices are inconvenient to carry, and the height of the microphone is fixed, which is not suitable for everyone to use, and there are many people in the classroom, which may easily cause poor air quality, which is not conducive to the health of teachers and students. Therefore, we provide a teaching Portable loudspeaker.

Utility model content

The technical problem to be solved by the utility model overcomes the existing defects, and provides a portable loudspeaker device for teaching, which adds the combination design of the rotating shaft, the handle of the rotating shaft and the groove, and the first telescopic sleeve and the second telescopic sleeve The combined design of the tube and the limit bolt enables the height of the microphone to be adjusted freely, which meets the needs of people of different heights. The combined use of array sound diffuser holes is beneficial to improve the sound quality, improve the sound amplification effect, reduce the labor intensity of the teacher, and can detect the air quality in the classroom and remind it, which is beneficial to the health of students and teachers, and the design is more humanized , simple in structure, portable and practical, and can effectively solve the problems in the background technology.

In order to solve the above technical problems, the utility model provides the following technical solutions:

A portable sound amplifying device for teaching, comprising an amplifying box, a sound input processor is provided at the bottom of the inner cavity of the amplifying box, a speaker is provided on one side of the sound input processor, and a sound diffuser is provided on one side of the speaker. hole, and the sound diffuser hole is set on one side of the amplifying box, the top of the inner cavity of the amplifying box is provided with a rotating shaft, the other side of the speaker is provided with a PLC controller, and the inner cavity of the PLC controller is provided with A signal receiving and processing device, one side of the rotating shaft is connected to the rotating shaft handle, a charging socket is provided on the side of the amplifying box close to the rotating shaft handle, the top of the rotating shaft is connected to the first telescopic sleeve, and the first telescopic sleeve is There is a groove on one side of the groove, an air quality detection device is arranged on one side of the groove, a signal transmitter is arranged inside the air quality detection device, an LED alarm light is arranged on the other side of the groove, and the first telescopic The other side of the sleeve is provided with a slot for placing a microphone, the first telescopic sleeve is connected to the second telescopic sleeve through limit bolts, the top of the second telescopic sleeve is provided with a bracket, and the top of the bracket is provided with a microphone clip.

Further, the sound-diffusing holes are distributed in an array.

Further, the first telescopic sleeve and the second telescopic sleeve are made of stainless steel, and the outer walls are provided with bolt holes.

Furthermore, both ends of the top of the amplifying box are equipped with handrails.

Furthermore, the inner cavity of the microphone clip is provided with an elastic microphone ferrule, and a soft filler is provided between the elastic microphone ferrule and the microphone clip.

Furthermore, the air quality detection device, the signal transmitter, the signal receiving and processing device, the PLC controller and the LED warning light are all electrically connected.

Beneficial effects of the utility model: the utility model adds the combined design of the rotating shaft, the handle of the rotating shaft and the groove, and the combined design of the first telescopic sleeve, the second telescopic sleeve and the limit bolt, so that the height of the microphone can be adjusted freely, satisfying the It can be used by people of different heights. After use, it can be rotated and placed, and the portable handrail is used to facilitate people to carry it. It is beneficial to improve sound quality and sound reinforcement through the combination of sound input processor, speaker and array sound diffuser holes. As a result, the labor intensity of teachers is reduced, the use of air quality detection devices is increased, and the air quality in classrooms can be detected and reminded, which is beneficial to the health of students and teachers. The design is more humane, simple in structure, light and practical.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model.

Fig. 1 is a structural diagram of a portable loudspeaker device for teaching according to the present invention.

Fig. 2 is a side view structure diagram of a portable loudspeaker device for teaching of the present invention.

Fig. 3 is a top view of a portable loudspeaker device for teaching according to the present invention.

Symbols in the figure: 1. Amplified speaker; 2. Sound input processor; 3. Speaker; 4. Sound diffuser hole; 5. Rotary shaft; 6. Rotary shaft handle; 7. Bolt hole; 8. Charging socket; 9. First Telescopic sleeve; 10. Groove; 11. Microphone placement groove; 12. Limit bolt; 13. Second telescopic sleeve; 14. Bracket; 15. Microphone clip; 16. Portable armrest; 18. Soft filler; 19. PLC controller; 20. Signal receiving and processing device; 21. Air quality detection device; 22. Signal transmitter; 23. LED alarm light.

detailed description

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

As shown in Fig. 1-Fig. 3, comprise amplifying box 1, as the carrier of amplifying device, the bottom of described amplifying box 1 cavity is provided with sound input processor 2, is used for identifying sound, and described sound input processor 2 is The side is provided with a loudspeaker 3 to diffuse and amplify the sound. The side of the loudspeaker 3 is provided with a sound diffusion hole 4, which is used as a carrier for the sound to pass through when the loudspeaker 3 works, and the sound diffusion hole 4 is arranged on the sound reinforcement box 1 On one side, the structure is reasonable, and the other side of the speaker 3 is provided with a PLC controller 19, which is used to control the LED warning light 23 to turn on, and the inner cavity of the PLC controller 19 is provided with a signal receiving and processing device 20, which receives information and processes it Analysis, the top of the cavity of the amplifying box 1 is provided with a rotating shaft 5 for rotating the first telescopic sleeve 9, one side of the rotating shaft 5 is connected to the rotating shaft handle 6 to assist the rotation of the rotating shaft 5, close to the The amplifying box 1 side of the rotating shaft handle 6 is provided with a charging socket 8, which is used to charge the voice input processor 2 and the speaker 3. The top of the rotating shaft 5 is connected to the first telescopic sleeve 9, which is the second telescopic sleeve. The expansion and contraction of the cylinder 13 provides a space. A groove 10 is provided on one side of the first telescopic sleeve 9 for storing the first telescopic sleeve 9. An air quality detection device 21 is provided on one side of the groove 10. It can detect the air quality data in the classroom. The air quality detection device 21 is provided with a signal transmitter 22 inside to transmit the air quality data. The other side of the groove 10 is provided with an LED warning light 23 for warning the air quality. Good or bad, the other side of the first telescopic sleeve 9 is provided with a microphone placement groove 11, after the teaching is completed, the microphone is placed, and the first telescopic sleeve 9 is connected to the second telescopic sleeve 13 through a limit bolt 12 , the limit bolt 12 is used as the carrier for the telescopic work of the first telescopic sleeve 9 and the second telescopic sleeve 13, and the top of the second telescopic sleeve 13 is provided with a bracket 14, which plays the role of supporting the microphone clip 15. A microphone clip 15 is arranged on the top of the bracket 14 .

The sound diffusion holes 4 are distributed in an array, which is convenient for the sound diffusion of the speaker 3, and the layout is beautiful. The first telescopic sleeve 9 and the second telescopic sleeve 13 are made of stainless steel, with high strength and corrosion resistance, which is beneficial for extended use Time, and the outer wall is provided with bolt holes 7, as the carrier of the tightening and dismounting of the limit bolt 12, the two ends of the top of the amplifying box 1 are provided with portable handrails 16, and the portable handrails 16 are used to facilitate portability. 15 inner cavity is provided with elastic microphone ferrule 17, utilizes elastic microphone ferrule 17 to have the property of resilience, has improved the scope of application of fixing to microphone, makes between described elastic microphone ferrule 17 and microphone clip 15 be provided with soft The filler 18 plays the role of the auxiliary elastic microphone ferrule 17. The air quality detection device 21, the signal transmitter 22, the signal receiving and processing device 20, the PLC controller 19 are electrically connected with the LED warning light 23, and can detect classroom Air quality and reminders are beneficial to the health of students and teachers, and the design is more humane.

When the utility model is in use, a person stands on one side of the amplifying box 1 and talks to the microphone, recognizes the sound through the sound input processor 2, uses the speaker 3 to amplify the sound, uses the sound diffusion hole 4 as a transmission channel, and uses the charging socket 8 as a transmission channel. The carrier that provides power uses the second telescopic sleeve 13 to move up and down in the first telescopic sleeve 9 to adjust the height of the microphone clip 15, and the position is limited by the limit bolt 12. When not in use, the person holds the shaft handle 6 Rotation drives the rotation of the rotating shaft 5 to drive the first telescopic sleeve 9 to rotate into the groove 10 for placement, remove the microphone from the microphone clip 15, place it in the microphone placement groove 11, and carry it by hand through the handrail 16. The quality detection device 21 detects the air quality data of the classroom, and uses the signal transmitter 22 to send information, and the signal receiving and processing device 20 performs receiving processing, and controls the LED warning light through the PLC controller 19 to give a warning.

The above is a preferred embodiment of the utility model, and those skilled in the art of the utility model can also change and modify the above-mentioned embodiment. Therefore, the utility model is not limited to the above-mentioned specific embodiment. Anyone skilled in the art Any obvious improvement, replacement or modification made on the basis of the present utility model belongs to the protection scope of the present utility model.

Claims (6)

1. a kind of light public address set for imparting knowledge to students, including the case that amplifies（1）, it is characterised in that the case that amplifies（1）Interior bottom of chamber Portion is provided with sound input processor（2）, the sound input processor（2）Side is provided with loudspeaker（3）, the loudspeaker（3） Side is provided with scattered sound hole（4）, and the scattered sound hole（4）Located at the case that amplifies（1）Side, the loudspeaker（3）Opposite side sets There is PLC（19）, the PLC（19）Inner chamber is provided with signal receiving and processing device（20）, the case that amplifies（1）It is interior Top of chamber is provided with rotary shaft（5）, the rotary shaft（5）Side connection rotating shaft handle（6）, near the rotating shaft handle（6）Expansion Audio amplifier（1）Side is provided with charging socket（8）, the rotary shaft（5）Top connects the first extension sleeve（9）, described first stretches Sleeve（9）Side is provided with groove（10）, the groove（10）Side is provided with air quality detecting device（21）, the air quality Detection means（21）Inside is provided with signal projector（22）, the groove（10）Opposite side is provided with LED alarm lamp（23）, described One extension sleeve（9）Opposite side is provided with microphone standing groove（11）, first extension sleeve（9）By caging bolt（12）Connection Second extension sleeve（13）, second extension sleeve（13）Top is provided with support（14）, the support（14）Top is provided with words Collet chuck（15）.

2. according to claim 1 it is a kind of for impart knowledge to students light public address set, it is characterised in that：The scattered sound hole（4）It is in Array distribution.

3. according to claim 1 it is a kind of for impart knowledge to students light public address set, it is characterised in that：First extension sleeve （9）With the second extension sleeve（13）Stainless steel is, and outer wall is equipped with bolt hole（7）.

4. according to claim 1 it is a kind of for impart knowledge to students light public address set, it is characterised in that：The case that amplifies（1）Top Portion two ends are equipped with portable handrail（16）.

5. according to claim 1 it is a kind of for impart knowledge to students light public address set, it is characterised in that：The microphone clip（15）It is interior Chamber is provided with elastic microphone lasso（17）, the elastic microphone lasso（17）With microphone clip（15）Between be provided with soft filler （18）.

6. according to claim 1 it is a kind of for impart knowledge to students light public address set, it is characterised in that：The Detection of Air Quality Device（21）, signal projector（22）, signal receiving and processing device（20）, PLC（19）With LED alarm lamp（23）It is electric Connection.