Portable megaphone for music teachingTechnical Field
The utility model relates to the technical field of sound amplification, in particular to a portable sound amplifier for music teaching.
Background
The teaching megaphone is a kind of equipment of the loudspeaker box, the loudspeaker box refers to a kind of equipment which can convert the audio signal into sound, the popular speaking refers to the power amplifier which is arranged in the main box body of the loudspeaker box or the bass box body, the sound is played back by the loudspeaker box after the audio signal is amplified, the megaphone is an electronic equipment which can make the sound become larger, the main function is to reduce the diffusion of the sound and amplify the input sound, the sound is transmitted more far, the occasion that the megaphone was used is more, is usually used in classrooms and meeting rooms at the longest, and is used in training rooms, recording and broadcasting rooms, singing halls and open places such as gymnasiums, so that the megaphone can be widely applied to the teaching field, the sound of a teacher can be transmitted to the ears of students through the megaphone, and the megaphone is convenient for the teacher to teach students.
According to the patent application publication No. CN213847013U, a music teaching megaphone comprises a housing, the front side fixed mounting of shell has the speaker, the equal fixed mounting in both sides of shell has the fixed block, one side fixed mounting of fixed block has the solid fixed ring, the outside of solid fixed ring is provided with the safety catch, the top fixed mounting of safety catch has the connecting block, the top fixed mounting of connecting block has the waistband rope, one side bottom of shell is provided with splint, and this structure's advantage lies in, through the cooperation setting between splint, reset spring, the connecting rod, can press from both sides waistband rope in one side of shell, is convenient for accomodate waistband rope temporarily, through being equipped with the safety catch, can release the connection between waistband rope and the shell, it is comparatively convenient to dismantle, is convenient for take down waistband rope from the both sides of shell, and the rethread is equipped with the containing box, is convenient for put waistband rope into the inside of containing box, and it is comparatively convenient to deposit.
However, the belt rope length cannot be adjusted according to the needs of a user, the wearing feeling of the user can be affected by the discomfort of the belt rope length, and the user wears the loudspeaker under the uncomfortable wearing condition for a long time, so that the loudspeaker is inconvenient to carry.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a portable loudspeaker for music teaching, which is used for solving the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a music teaching is with megaphone, includes megaphone shell, megaphone shell top is fixed to be equipped with the tuning knob, tuning knob one side is fixed to be equipped with the switch, megaphone shell both sides are all fixed to be equipped with coupling mechanism, two coupling mechanism bottom all is equipped with protection machanism, two coupling mechanism includes reset spring, reset spring sets up in one side of megaphone shell, one side of reset spring is equipped with the movable groove, the inside fixed slot that is equipped with of movable groove, the inside spacing pearl that is equipped with of fixed slot, the inside fixing base that is equipped with of fixed slot, set up on the fixing base with spacing pearl assorted draw-in groove.
In order to achieve the effect that the waistband ropes can be adjusted in length, the waistband ropes are further described in the technical scheme, wherein one side of the fixing seat is provided with a first waistband rope, the surface of the first waistband rope is fixedly provided with a plurality of circular buckles, the number of the circular buckles is multiple, the circular buckles are uniformly distributed on the surface of the first waistband rope, one side of the other fixing seat is provided with a second waistband rope, the surface of the second waistband rope is provided with round holes matched with the circular buckles, the number of the round holes is multiple, and the round holes are uniformly distributed on the surface of the second waistband rope.
In order to achieve the effect of buffering protection of the loudspeaker, the protection mechanism comprises a blocking frame plate, wherein the blocking frame plate is made of rubber materials, an air bag is arranged in the blocking frame plate, buffer springs are arranged on the rear side of the air bag, the buffer springs are distributed uniformly on the rear side of the air bag, and rubber pads are fixedly arranged at four corners of the loudspeaker shell.
In order to achieve the effect of balancing the external air pressure in the loudspeaker, the technical scheme is further described in that a loudspeaker is fixedly arranged on the front side of the loudspeaker shell, air guide holes are formed in the surface of the loudspeaker, the number of the air guide holes is multiple, and the air guide holes are uniformly distributed on the surface of the loudspeaker.
In order to achieve the effect of radiating the inside of the loudspeaker, the technical scheme is further described in that radiating holes are formed in the bottom of the loudspeaker shell, the quantity of the radiating holes is multiple, and the radiating holes are uniformly distributed at the bottom of the loudspeaker shell.
In order to achieve the effect of convenient clamping of the sound amplifying shell and the waistband rope, the technical scheme is further described in that a charging port is formed in the rear side of the sound amplifying shell, the inside of the fixing groove is movably connected with limiting beads, the number of the limiting beads is multiple, and the limiting beads are distributed in an annular mode in the fixing groove.
The utility model has the technical effects and advantages that:
1. Through setting up coupling mechanism, through manual inwards pushing the movable groove when waistband rope and megaphone shell are connected, make the movable groove no longer press spacing pearl, later insert the fixing base in the fixed slot, loosen the movable groove, reset spring promotes the movable groove and outwards remove, make the movable groove push down spacing pearl again afterwards, block spacing pearl through the draw-in groove and accomplish the connection, make waistband rope and megaphone convenient connection and more stable also bias to dismantle;
2. Through setting up first waistband rope, circle knot, second waistband rope, round hole, the user makes first waistband rope and second waistband rope interconnect through round hole and the mutual joint of circle knot when using, makes the user can adjust length through the needs of self through a plurality of round holes and circle knot, and it is more comfortable to make the wearer wear the megaphone for a long time, carries also more convenient.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the connecting mechanism and the protecting mechanism of the utility model.
Fig. 3 is a schematic top view of the present utility model.
Fig. 4 is a schematic rear view of the present utility model.
The electric power amplifier comprises a loudspeaker shell, a tuning knob, a switch, a return spring, a movable groove, a fixed groove, a limiting bead, a fixed seat, a clamping groove, a first waistband rope, a circular buckle, a second waistband rope, a circular hole, a blocking frame plate, a 15, an air bag, a 16, a buffer spring, a 17, a rubber pad, a 18, a loudspeaker, a 19, an air guide hole, a 20, a radiating hole, a 21 and a charging port.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the application discloses a portable loudspeaker for music teaching, which specifically comprises a loudspeaker shell 1, wherein a tuning knob 2 is fixedly arranged at the top of the loudspeaker shell 1, a switch 3 is fixedly arranged on one side of the tuning knob 2, a charging port 21 is arranged on the rear side of the loudspeaker shell 1, connecting mechanisms are fixedly arranged on two sides of the loudspeaker shell 1, and protection mechanisms are arranged at the bottoms of the two connecting mechanisms.
Referring to fig. 1-2, a speaker 18 is fixed on the front side of a loudspeaker housing 1, air holes 19 are provided on the surface of the speaker 18, the number of the air holes 19 is plural, the plurality of air holes 19 are uniformly distributed on the surface of the speaker 18, a heat dissipation hole 20 is provided at the bottom of the loudspeaker housing 1, which is capable of balancing the external air pressure inside the loudspeaker, through the air holes 19, the number of the heat dissipation holes 20 is plural, the plurality of heat dissipation holes 20 are uniformly distributed at the bottom of the loudspeaker housing 1, and the heat dissipation effect is achieved inside the loudspeaker through the plurality of heat dissipation holes 20.
Referring to fig. 2, the protection mechanism comprises a blocking frame plate 14, the blocking frame plate 14 is made of rubber materials, an air bag 15 is arranged in the blocking frame plate 14, buffer springs 16 are arranged on the rear side of the air bag 15, the buffer springs 16 are uniformly distributed on the rear side of the air bag 15, rubber pads 17 are fixedly arranged at four corners of the loudspeaker shell 1, a certain buffer protection effect can be achieved when the loudspeaker falls on the ground carelessly, and the service life of the loudspeaker is prolonged.
Referring to fig. 2-3, two coupling mechanisms include a return spring 4, the return spring 4 is disposed on one side of the loudspeaker housing 1, a movable groove 5 is disposed on one side of the return spring 4, a fixed groove 6 is disposed inside the movable groove 5, a plurality of limit beads 7 are disposed inside the fixed groove 6, the limit beads 7 are distributed annularly inside the fixed groove 6, a fixing seat 8 is disposed inside the fixed groove 6, a clamping groove 9 matched with the limit beads 7 is disposed on the fixing seat 8, when the waistband is coupled with the loudspeaker housing 1, the movable groove 5 is pushed inwards manually, so that the movable groove 5 does not press the limit beads 7 any more, then the fixing seat 8 is inserted into the fixed groove 6, the movable groove 5 is released, the return spring 4 pushes the movable groove 5 to move outwards, then the movable groove 5 presses the limit beads 7 again, the waistband is clamped and is connected through the clamping groove 9, and the waistband is connected with the loudspeaker housing more stably and is detached.
Referring to fig. 4, a first waistband line 10 is arranged on one side of one fixing seat 8, round buckles 11 are fixedly arranged on the surface of the first waistband line 10, the number of the round buckles 11 is multiple, the round buckles 11 are uniformly distributed on the surface of the first waistband line 10, a second waistband line 12 is arranged on one side of the other fixing seat 8, round holes 13 matched with the round buckles 11 are formed in the surface of the second waistband line 12, the number of the round holes 13 is multiple, the round holes 13 are uniformly distributed on the surface of the second waistband line 12, a user can mutually connect the first waistband line 10 and the second waistband line 12 through the round holes 13 and the round buckles 11 in a clamping manner, the length of the user can be adjusted through the needs of the round holes 13 and the round buckles 11, and the loudspeaker can be worn by the user for a long time, so that the carrying is more comfortable and the loudspeaker is more convenient.
When the portable music teaching loudspeaker is used, firstly, the portable music teaching loudspeaker is placed at a place where the loudspeaker needs to work, the movable groove 5 is pushed inwards manually, so that the movable groove 5 does not press the limit beads 7 any more, then the fixed seat 8 is inserted into the fixed groove 6, the movable groove 5 is loosened, the reset spring 4 pushes the movable groove 5 to move outwards, then the movable groove 5 presses the limit beads 7 again, the limit beads 7 are clamped and connected through the clamping groove 9, the first waistband rope 10 and the second waistband rope 12 are connected with the loudspeaker conveniently and are more stable and are also biased to be detached, the loudspeaker can be held or placed on a platform, and the situation that the loudspeaker is in the way of being long is avoided because the first waistband rope 10 and the second waistband rope 12 are inconvenient to hold is avoided;
When the round holes 13 and the round buckles 11 are clamped with each other, the first waistband rope 10 and the second waistband rope 12 are connected with each other, the length of the waistband rope can be adjusted through the plurality of round holes 13 and the round buckles 11, so that a wearer wears the loudspeaker for a long time more comfortably, the carrying is more convenient, the loudspeaker switch 3 is started after the wearer wears the waistband rope, and the volume is adjusted through the tuning knob 2;
Through rubber pads 17 at four corners of the loudspeaker shell 1, and air bags 15 and buffer springs 16 in the blocking frame plates 14 at two sides, the loudspeaker can be buffered and protected to a certain extent when carelessly falls to the ground, and the service life of the loudspeaker is prolonged.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.