A portable amplifying device for offline education

Abstract

The present invention discloses a portable amplifying device for offline education, specifically relating to the field of offline education technology, comprising a main unit, a protective mechanism provided on the outside of a sound outlet at the front end of the main unit, a microphone receiving slot, an ear clip receiving slot, and a wire receiving slot provided on the rear side of the main unit, the ear clip receiving slot being provided at the top of the microphone receiving slot, the wire receiving slot being provided above the microphone receiving slot and on one side of the ear clip receiving slot, a microphone, an ear clip, and a connecting wire being respectively clamped in the microphone receiving slot, the ear clip receiving slot, and the wire receiving slot, and a fixing mechanism being provided on the rear side of the main unit. The microphone, ear clip, and connecting wire of the present invention are easy to store, easy to carry, and easy to use, while the protective mechanism protects the sound outlet of the main unit, and the sound quality is high.

Description

Technical Field

[0001] The present invention relates to the technical field of offline education, and more specifically to a portable amplifying device for offline education. Background Art

[0002] Offline education is the traditional teaching model, where students and teachers are taught face to face. Offline education is more about experience sharing and actual interaction, which can directly produce results. Students can communicate directly with teachers in class and can also supervise students.

[0003] For larger classrooms, teachers often use loudspeakers to assist teaching. Loudspeakers are devices that amplify sound and spread it farther. Loudspeakers can help teachers lower the volume and protect their throats. Loudspeakers are no longer limited to general amplification use. New functions are constantly being improved, supporting U disks, TF cards, radio and recording functions, and some support remote control functions.

[0004] The connecting wire between the microphone and the host on the existing sound amplification device is long and inconvenient to store. Secondly, the protective net at the sound outlet of the host is easily clogged with dust after long-term use, which reduces the sound volume. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a portable amplifying device for offline education. The microphone, ear clip and connecting wire of the present invention are easy to store, carry and use. At the same time, the protective mechanism protects the sound outlet of the host, and the sound quality is high.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a portable amplifying device for offline education, comprising a main unit, a protective mechanism being provided on the outside of the sound outlet at the front end of the main unit, a microphone storage slot, an ear clip storage slot and a wire storage slot being provided on the rear side of the main unit, the ear clip storage slot being provided at the top of the microphone storage slot, the wire storage slot being provided above the microphone storage slot and on one side of the ear clip storage slot, a microphone, an ear clip and a connecting wire being respectively clamped in the microphone storage slot, the ear clip storage slot and the wire storage slot, and a fixing mechanism being provided on the rear side of the main unit, which facilitates carrying the main unit when in use.

[0007] Preferably, a hand strap is fixedly provided on the outer end of the top of the host to facilitate carrying the host.

[0008] Preferably, an outer frame is fixedly provided at the rear end of the host, and the outer frame is arranged outside the microphone storage slot, ear clip storage slot, and wire storage slot. The outer frame is arranged below the fixing mechanism, and a cover plate is hinged at the rear end of the outer frame. The outer frame and the cover plate are used to protect the microphone, ear clip, and connecting wires.

[0009] Preferably, a pair of plastic blocks are fixed inside the microphone storage slot, ear clip storage slot and wire storage slot. The plastic block in the microphone storage slot is arranged on the outside of the microphone, the plastic block in the ear clip storage slot is arranged on the outside of the ear clip, and the plastic block in the wire storage slot is arranged on the outside of the connecting wire, which are used to fix the microphone, ear clip and connecting wire.

[0010] Preferably, the fixing mechanism includes a shell, which is fixedly arranged at the rear end of the main unit, a rotating rod is provided inside the shell, and both ends of the rotating rod are movably connected to the front and rear walls of the shell through bearings, and the outer end of the rotating rod is provided with a connecting ring and a clockwork spring, and the connecting ring is arranged at the rear side of the clockwork spring, and the connecting ring is fixedly connected to the rotating rod, and the two ends of the clockwork spring are respectively fixedly connected to the outer end of the rotating rod and the front wall of the shell, and the outer end of the rotating rod is provided with a strap, and the strap is arranged at the rear side of the connecting ring, and both ends of the shell are provided with openings, and the two ends of the strap extend out of both sides of the shell through two openings respectively, and both ends of the strap are fixed with limit blocks, and the fixing mechanism is used to fix the main unit to the waist, so that the main unit is convenient to carry when in use.

[0011] A clockwork spring, also known as a (coil) spring, refers to a spring whose spiral line is in a plane. A clockwork spring is a spring made by winding the material into a flat spiral shape. One end of the clockwork spring is fixed, and when torque is applied to the other end, the material is subjected to a bending moment, resulting in bending elastic deformation, and thus the clockwork spring is torsionally twisted in its own plane.

[0012] Preferably, the protective mechanism includes a circular ring, a protective plate is fixedly provided on the inner wall of the circular ring, a plurality of through holes are provided on the protective plate, and the plurality of through holes are distributed in a circular array with the center of the protective plate. A rotating shaft is provided through the center of the protective plate, and the rotating shaft is connected to the protective plate through a bearing. A knob is fixedly provided at the front end of the rotating shaft, and the knob is provided on the inside of the through hole. A connecting plate is fixedly provided at the rear end of the rotating shaft, and the connecting plate is provided inside the circular ring. A row of cleaning components is provided at the front end of the connecting plate, and the cleaning component passes through one of the through holes. The protective mechanism is used to protect the sound outlet of the host.

[0013] Preferably, the ring is arranged on the front side of the main unit and on the outside of the sound outlet. The ring is threadedly connected to the sound outlet to facilitate disassembly of the ring and the main unit. A sealing ring is provided between the ring and the main unit for sealing the ring and the main unit. The connecting plate is arranged on the front side of the sound outlet.

[0014] Preferably, the cleaning assembly includes a hollow rod, a cylinder, a conical rod and a spring, the hollow rod is fixed at the front end of the connecting plate, the cylinder is slidably arranged inside the hollow rod, the spring is arranged inside the hollow rod, and the two ends of the spring are respectively fixedly connected to the inner rear wall of the hollow rod and the rear end of the cylinder, the front end of the cylinder is fixed with a conical rod, the conical rod is arranged on the front side of the hollow rod and passes through the through hole, and is used to clean the through hole to prevent the through hole from being blocked by dust and affecting the sound quality.

[0015] The technical effects and advantages of the present invention are as follows:

[0016] 1. When using the present invention, take out the microphone, ear clip, and connecting cable, insert the connecting cable into the microphone and the host, then clip the ear clip on the ear, and adjust the position of the microphone to the front of the mouth. When not in use, insert the microphone, ear clip, and connecting cable into the microphone storage slot, ear clip storage slot, and cable storage slot respectively. The plastic blocks in the microphone storage slot, ear clip storage slot, and cable storage slot respectively fix the microphone, ear clip, and connecting cable. Then close the outer frame to facilitate the storage of the microphone, ear clip, and connecting cable. At the same time, the outer frame and cover protect the microphone, ear clip, and connecting cable.

[0017] 2. The present invention loosens the straps on the rotating rod by pulling the straps to both sides. Then the teacher places the host on the waist, and the straps are fixed around the waist to fix the host on the waist, making it convenient to carry the host when in use. When not in use, the straps are untied, and the rotating rod rotates under the elastic force of the spring, and the straps are rewound onto the rotating rod to store the straps.

[0018] 3. The present invention protects the sound outlet of the main unit through a protective mechanism. When the through holes of the protective plate on the protective mechanism are blocked, turning the knob drives the rotating shaft, the connecting plate and the cleaning assembly to rotate. At this time, the conical rod and the cylinder on the cleaning assembly shrink toward the inside of the hollow rod and squeeze the spring. When the cleaning assembly rotates to the next group of through holes, the cylinder and the conical rod extend from the hollow rod under the elastic force of the spring, and the conical rod is inserted into the group of through holes to pound out the dust in the group of through holes. Compared with the existing technology, turning the knob can realize the cleaning of multiple groups of through holes, preventing the through holes from being blocked by dust and affecting the sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural diagram of the present invention;

[0020] Figure 2 This is a rear view of the host of the present invention;

[0021] Figure 3 This is a rear cross-sectional view of the host of the present invention;

[0022] Figure 4 This is a partial rear view of the host of the present invention;

[0023] Figure 5 It is a front view of the host of the present invention;

[0024] Figure 6 This is a rear view of the sound outlet of the present invention;

[0025] Figure 7 is a cross-sectional view of the sound outlet of the present invention;

[0026] Figure 8 It is a structural diagram of the cleaning component of the present invention.

[0027] The accompanying drawings are marked as follows: 1 host, 2 sound outlet, 3 protective mechanism, 4 microphone storage slot, 5 ear clip storage slot, 6 wire storage slot, 7 microphone, 8 ear clip, 9 connecting wire, 10 fixing mechanism, 11 hand strap, 12 outer frame, 13 cover, 14 plastic card block, 15 shell, 16 rotating rod, 17 connecting ring, 18 spring, 19 strap, 20 limit block, 21 ring, 22 protective plate, 23 through hole, 24 sealing ring, 25 rotating shaft, 26 knob, 27 connecting plate, 28 cleaning component, 29 hollow rod, 30 cylinder, 31 conical rod, 32 spring. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figure 1-4 As shown, the present invention provides a portable amplifying device for offline education, including a main unit 1, a hand strap 11 is fixedly provided at the top outer end of the main unit 1, which is convenient for carrying the main unit 1, and a microphone storage slot 4, an ear clip storage slot 5 and a wire storage slot 6 are provided on the rear side of the main unit 1, the ear clip storage slot 5 is arranged at the top of the microphone storage slot 4, the wire storage slot 6 is arranged above the microphone storage slot 4 and on one side of the ear clip storage slot 5, a microphone 7, an ear clip 8 and a connecting wire 9 are respectively clamped inside the microphone storage slot 4, the ear clip storage slot 5 and the wire storage slot 6, an outer frame 12 is fixedly provided at the rear end of the main unit 1, the outer frame 12 is arranged outside the microphone storage slot 4, the ear clip storage slot 5 and the wire storage slot 6, the outer frame 12 is arranged below the fixing mechanism 10, and a cover plate 13 is hinged at the rear end of the outer frame 12.

[0030] When in use, open the cover 13, take out the microphone 7, ear clip 8, and connecting wire 9, then close the cover 13, insert the connecting wire 9 into the microphone 7 and the host 1 to connect the microphone 7 to the host 1, and then clip the ear clip 8 on the ear. In the prior art, the microphone 7 can be bent at will, so adjust the position of the microphone 7 to the front of the mouth. When not in use, insert the microphone 7, ear clip 8, and connecting wire 9 into the microphone storage slot 4, ear clip storage slot 5, and wire storage slot 6 respectively, and then close the outer frame 12 to facilitate the storage of the microphone 7, ear clip 8, and connecting wire 9. At the same time, the outer frame 12 and the cover 13 protect the microphone 7, ear clip 8, and connecting wire 9.

[0031] like Figure 3-4 As shown, a pair of plastic blocks 14 are fixed inside the microphone storage slot 4, the ear clip storage slot 5, and the wire storage slot 6. The plastic block 14 in the microphone storage slot 4 is arranged on the outside of the microphone 7, the plastic block 14 in the ear clip storage slot 5 is arranged on the outside of the ear clip 8, and the plastic block 14 in the wire storage slot 6 is arranged on the outside of the connecting wire 9. The plastic blocks 14 in the microphone storage slot 4, the ear clip storage slot 5, and the wire storage slot 6 fix the microphone 7, the ear clip 8, and the connecting wire 9 respectively.

[0032] like Figure 2-4 As shown, a fixing mechanism 10 is provided on the rear side of the host 1, and the fixing mechanism 10 includes a shell 15, and the shell 15 is fixedly arranged at the rear end of the host 1. A rotating rod 16 is provided inside the shell 15, and the two ends of the rotating rod 16 are movably connected to the front and rear walls of the shell 15 respectively through bearings. A connecting ring 17 and a spring 18 are provided on the outer end of the rotating rod 16, and the connecting ring 17 is arranged on the rear side of the spring 18. The connecting ring 17 is fixedly connected to the rotating rod 16, and the two ends of the spring 18 are fixedly connected to the outer end of the rotating rod 16 and the front wall of the shell 15 respectively. A strap 19 is provided on the outer end of the rotating rod 16, and the strap 19 is arranged on the rear side of the connecting ring 17. Both ends of the shell 15 are provided with openings. The two ends of 19 extend out of the two sides of the shell 15 through two openings respectively, and the two ends of the strap 19 are fixed with a limit block 20; the limit blocks 20 at both ends of the strap 19 are pulled to both sides, and the rotating rod 16 rotates to loosen the strap 19 wrapped around the rotating rod 16. At the same time, the rotation of the rotating rod 16 drives the spring spring 18 to loosen and generate elastic force. Then the teacher places the host 1 on the waist, and the strap 19 is fixed around the waist to fix the host 1 on the waist, which is convenient for carrying the host 1 when in use. When actually in use, the two ends of the strap 19 can be tied or fixed with Velcro. When not in use, the strap 19 is untied, and the rotating rod 16 rotates under the elastic force of the spring spring 18 to rewind the strap 19 onto the rotating rod 16 for storing the strap 19.

[0033] like Figure 1 、 5-8, a protective mechanism 3 is provided on the outer side of the sound outlet 2 at the front end of the host 1, and the protective mechanism 3 includes a circular ring 21, and a protective plate 22 is fixedly provided on the inner wall of the circular ring 21. A plurality of through holes 23 are provided on the protective plate 22, and the plurality of through holes 23 are distributed in a circular array with the center of the protective plate 22. A rotating shaft 25 is passed through the center of the protective plate 22, and the rotating shaft 25 is connected to the protective plate 22 through a bearing. A knob 26 is fixedly provided at the front end of the rotating shaft 25, and the knob 26 is provided on the inner side of the through hole 23. A connecting plate 27 is fixedly provided at the rear end of the rotating shaft 25, and the connecting plate 27 is provided inside the circular ring 21. A row of cleaning components 28 are provided at the front end of the connecting plate 27, and the cleaning components 28 pass through one of the through holes 23 to protect the sound outlet 2 of the host 1 through the protective mechanism 3.

[0034] The cleaning assembly 28 includes a hollow rod 29, a cylinder 30, a conical rod 31 and a spring 32. The hollow rod 29 is fixed at the front end of the connecting plate 27, the cylinder 30 is slidably arranged inside the hollow rod 29, the spring 32 is arranged inside the hollow rod 29, and the two ends of the spring 32 are respectively fixedly connected to the inner rear wall of the hollow rod 29 and the rear end of the cylinder 30. The front end of the cylinder 30 is fixedly provided with a conical rod 31, and the conical rod 31 is arranged on the front side of the hollow rod 29 and passes through the through hole 23.

[0035] When the through holes 23 on the protective plate 22 are blocked, turning the knob 26 drives the rotating shaft 25, the connecting plate 27 and the cleaning assembly 28 to rotate. At this time, the conical rod 31 and the cylinder 30 on the cleaning assembly 28 shrink toward the inside of the hollow rod 29 and squeeze the spring 32. When the cleaning assembly 28 rotates to the next group of through holes 23, the cylinder 30 and the conical rod 31 extend from the hollow rod 29 under the elastic force of the spring 32, and the conical rod 31 is inserted into the group of through holes 23 to pound out the dust in the group of through holes 23. Therefore, turning the knob 26 can clean multiple groups of through holes 23 and prevent the through holes 23 from being blocked by dust and affecting the sound quality.

[0036] like Figure 5-7 As shown, the ring 21 is arranged on the front side of the host 1 and on the outside of the sound outlet 2. The ring 21 is threadedly connected to the sound outlet 2. A sealing ring 24 is provided between the ring 21 and the host 1. The connecting plate 27 is arranged on the front side of the sound outlet 2. The threaded connection facilitates the disassembly of the ring 21 and the host 1. The sealing ring 24 is used to seal between the ring 21 and the host 1.

[0037] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable amplifying device for offline education, comprising a main unit (1), characterized in that: A protective mechanism (3) is provided on the outside of the sound outlet (2) at the front end of the host (1); a microphone receiving slot (4), an ear clip receiving slot (5) and a wire receiving slot (6) are provided on the rear side of the host (1); the ear clip receiving slot (5) is provided at the top of the microphone receiving slot (4); the wire receiving slot (6) is provided above the microphone receiving slot (4) and on one side of the ear clip receiving slot (5); a microphone (7), an ear clip (8) and a connecting wire (9) are respectively clamped inside the microphone receiving slot (4), the ear clip receiving slot (5) and the wire receiving slot (6); a fixing mechanism (10) is provided on the rear side of the host (1); The protection mechanism (3) comprises a circular ring (21), the inner wall of the circular ring (21) is fixedly provided with a protection plate (22), the protection plate (22) is provided with a plurality of through holes (23), the plurality of through holes (23) are distributed in a circular array with the center of the protection plate (22), a rotating shaft (25) is provided through the center of the protection plate (22), the rotating shaft (25) is connected to the protection plate (22) through a bearing, a knob (26) is fixedly provided at the front end of the rotating shaft (25), the knob (26) is provided inside the through hole (23), a connecting plate (27) is fixedly provided at the rear end of the rotating shaft (25), the connecting plate (27) is provided inside the circular ring (21), a row of cleaning components (28) is provided at the front end of the connecting plate (27), and the cleaning component (28) passes through one of the through holes (23); The circular ring (21) is arranged on the front side of the main unit (1) and outside the sound outlet (2), the circular ring (21) is threadedly connected to the sound outlet (2), a sealing ring (24) is provided between the circular ring (21) and the main unit (1), and the connecting plate (27) is arranged on the front side of the sound outlet (2); The cleaning assembly (28) comprises a hollow rod (29), a cylinder (30), a conical rod (31) and a spring (32). The hollow rod (29) is fixedly arranged at the front end of the connecting plate (27). The cylinder (30) is slidably arranged inside the hollow rod (29). The spring (32) is arranged inside the hollow rod (29). The two ends of the spring (32) are respectively fixedly connected to the inner rear wall of the hollow rod (29) and the rear end of the cylinder (30). The front end of the cylinder (30) is fixedly provided with a conical rod (31). The conical rod (31) is arranged on the front side of the hollow rod (29) and passes through the through hole (23).

2. The portable loudspeaker device for offline education according to claim 1, characterized in that: A hand strap (11) is fixedly provided at the outer end of the top of the main unit (1).

3. The portable loudspeaker device for offline education according to claim 1, characterized in that: The rear end of the host (1) is fixedly provided with an outer frame (12), the outer frame (12) is arranged outside the microphone storage slot (4), the ear clip storage slot (5), and the wire storage slot (6), the outer frame (12) is arranged below the fixing mechanism (10), and the rear end of the outer frame (12) is hinged with a cover plate (13).

4. The portable loudspeaker device for offline education according to claim 1, characterized in that: A pair of plastic card blocks (14) are fixedly provided inside the microphone storage slot (4), the ear clip storage slot (5), and the wire storage slot (6); the plastic card block (14) in the microphone storage slot (4) is arranged on the outside of the microphone (7); the plastic card block (14) in the ear clip storage slot (5) is arranged on the outside of the ear clip (8); and the plastic card block (14) in the wire storage slot (6) is arranged on the outside of the connecting wire (9).

5. The portable loudspeaker device for offline education according to claim 1, characterized in that: The fixing mechanism (10) comprises a shell (15), the shell (15) being fixedly arranged at the rear end of the host (1), a rotating rod (16) being arranged inside the shell (15), the two ends of the rotating rod (16) being movably connected to the front and rear walls inside the shell (15) through bearings, the outer end of the rotating rod (16) being provided with a connecting ring (17) and a spring (18), the connecting ring (17) being arranged at the rear side of the spring (18), the connecting ring (17) being fixedly connected to the rotating rod (16), the two ends of the spring (18) being fixedly connected to the outer end of the rotating rod (16) and the front wall inside the shell (15), the outer end of the rotating rod (16) being sleeved with a binding band (19), the binding band (19) being arranged at the rear side of the connecting ring (17), both ends of the shell (15) being provided with openings, the two ends of the binding band (19) being respectively extended out of the two sides of the shell (15) through the two openings, and both ends of the binding band (19) being fixedly provided with a limit block (20).

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