Vibration damage prevention structure for internal components of sound box

Abstract

The invention relates to the technical field of sound boxes, in particular to a sound box internal element vibration damage prevention structure which comprises a box body and a loudspeaker installed in the box body, and further comprises a noise reduction and shock absorption assembly which comprises a first noise reduction box fixedly installed in the box body, and a second noise reduction box is installed below the first noise reduction box in a sliding mode. And the cleaning assembly comprises a collecting box arranged at the bottom end of the second silencing box, a second cleaning frame is slidably installed on the inner wall of the second silencing box, and a first cleaning frame is rotatably installed on the first silencing box. According to the loudspeaker box, the first silencing box and the second silencing box are arranged in the box body, air vibration generated by the back face of the loudspeaker enters the silencing boxes and is eliminated by the silencing holes in the silencing boxes, the second silencing box vibrates when the vibration is large, the number of the silencing holes in the silencing boxes is increased, the silencing efficiency is improved, and the service life of the loudspeaker box is prolonged. And meanwhile, when the second silencing box vibrates, the interiors of the two silencing boxes can be cleaned, and the silencing quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of audio, and in particular to a structure for preventing vibration damage to internal components of a sound box. Background Art

[0002] The audio system is composed of a sound source input device, a signal amplifier (power amplifier) ​​and a speaker. It is a complete system that produces sound by exciting the bending waves in the sound-generating plate through an exciter (driver).

[0003] The sound produced by the speakers is prone to vibration. The front and rear vibrations of the speakers will affect the internal components of the speakers. The vibrations of the air will cause the internal components to resonate, affecting the life of the internal components. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a structure for preventing vibration damage to internal components of a speaker, which can effectively solve the problem in the prior art that internal components may be damaged due to air vibration.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a structure for preventing vibration damage to internal components of a sound box, comprising a box body and a speaker installed in the box body, and further comprising:

[0007] The sound-absorbing and shock-absorbing assembly comprises a first sound-absorbing box fixedly installed in a box body, a second sound-absorbing box is slidably installed below the first sound-absorbing box, and a plurality of sound-absorbing holes are arranged on the inner walls of the first sound-absorbing box and the second sound-absorbing box;

[0008] The cleaning component includes a collecting box arranged at the bottom end of a second silencer box, a collecting hole is opened at the bottom end of the second silencer box, the collecting hole is communicated with the collecting box, a second cleaning frame is slidably installed on the inner wall of the second silencer box, and when the second silencer box vibrates up and down, the second cleaning frame moves towards the second silencer box, and a first cleaning frame is rotatably installed on the first silencer box, and when the second silencer box vibrates up and down, the first cleaning frame rotates.

[0009] Furthermore, a transmission frame is slidably installed inside the box, a first magnet is provided on the transmission frame, and a second magnet attracted to the first magnet is provided on the second cleaning frame.

[0010] Furthermore, an elastic airbag is fixedly installed on the bottom wall of the box body, a pressure plate is connected to the bottom wall of the second silencer box, and the pressure plate is in full contact with the elastic airbag, a piston tube is fixedly installed on the top wall of the pressure plate, a piston rod is movably inserted on the piston tube, the top end of the piston rod is fixedly connected to the transmission frame, the bottom end of the piston tube is connected to the elastic airbag, and the collection box and the elastic airbag are connected.

[0011] Furthermore, a bracket is slidably installed at the top opening of the first silencer box, a threaded rod is rotatably penetrated on the bracket, an adjusting bracket is fixedly installed on the threaded rod, the first cleaning bracket is rotatably installed on the adjusting bracket, and a torsion spring is provided at the rotating connection, a mounting plate is provided on the inner wall of the box body, and a mounting hole is provided on the mounting plate, the first silencer box is slidably installed in the mounting hole, a fixing bracket is fixedly installed on the mounting plate, a fixing plate is fixedly installed on the fixing bracket, a threaded hole matched with the threaded rod is provided on the fixing plate, and the threaded rod is rotatably connected to the collecting hole.

[0012] Furthermore, the opening diameter of the top end of the first silencer box is smaller than the inner diameter of the first silencer box, and the bottom wall of the second silencer box is an inclined surface.

[0013] Furthermore, an air collecting box is provided on the top wall of the first muffler box, an auxiliary pipe is provided on the inner wall of the first muffler box, and the air collecting box and the auxiliary pipe are connected, and a connecting pipe is connected between the air collecting box and the top end of the piston tube.

[0014] Furthermore, a solenoid valve is provided at the connection between the air collecting box and the auxiliary pipe, and a detection controller is provided in the box body. The controller includes a third magnet slidably mounted on the inner wall of the box body, an electromagnet is fixedly mounted on the inner wall of the box body, and the electromagnet repels the third magnet when energized, a trigger rod is fixedly mounted on the third magnet, and a push switch for controlling the solenoid valve is fixedly mounted on the inner wall of the box body, and the trigger rod is away from the push switch when energized, and the electromagnet is electrically connected to the circuit of the speaker.

[0015] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0016] By arranging the first silencer box and the second silencer box in the box body, the air vibration generated on the back of the speaker enters the silencer box and is eliminated by the internal silencer holes. When the vibration is large, the second silencer box will also vibrate, increasing the number of internal silencer holes and improving the silencer efficiency. At the same time, when the second silencer box vibrates, the inside of the two silencer boxes will be cleaned to ensure the quality of silencer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is an overall schematic diagram of the present invention;

[0019] Figure 2 is a cross-sectional view of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the muffler box part of the present invention;

[0021] Figure 4 for Figure 3 A front view of

[0022] Figure 5 It is a structural schematic diagram of the cleaning frame part of the present invention;

[0023] Figure 6 A diagram showing a combination of a first muffler box and a second muffler box in the present invention;

[0024] Figure 7 for Figure 6 A front cross-sectional view of

[0025] Figure 8 It is a schematic diagram of the structure of the controller part in the present invention.

[0026] The numbers in the figure represent: 1. Box body; 2. Dustproof plate; 3. Speaker; 4. Mounting plate; 5. First silencer box; 6. Second silencer box; 7. Pressing plate; 8. Elastic airbag; 9. Collecting box; 10. Fixing frame; 11. Fixing plate; 12. Bracket; 13. Threaded rod; 14. First cleaning frame; 15. Piston tube; 16. Piston rod; 17. Connecting pipe; 18. Air collecting box; 19. Transmission frame; 20. Second cleaning frame; 21. Auxiliary pipe; 22. Third magnet; 23. Electromagnet; 24. Trigger rod; 25. Push switch. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0028] The present invention will be further described below in conjunction with the embodiments.

[0029] Example: Reference Figure 1-Figure 8A structure for preventing internal components of a sound box from being damaged by vibration comprises a box body 1 and a speaker 3 installed in the box body 1, a dustproof plate 2 is provided on the top of the box body 1, and a sound-absorbing and shock-absorbing component is also provided, comprising a first sound-absorbing box 5 fixedly installed in the box body 1, a second sound-absorbing box 6 is slidably installed below the first sound-absorbing box 5, a plurality of sound-absorbing holes are provided on the inner walls of the first sound-absorbing box 5 and the second sound-absorbing box 6, the opening diameter of the top end of the first sound-absorbing box 5 is smaller than the inner diameter of the first sound-absorbing box 5, and the bottom wall of the second sound-absorbing box 6 is an inclined surface.

[0030] like Figure 6 As shown, the sound (vibrating air) first enters the first silencer box 5, is reflected by the bottom slope of the second silencer box 6, repeatedly reverberates between the first silencer box 5 and the second silencer box 6, and is offset by the silencer holes, thereby playing a role in shock absorption and silencing.

[0031] Another example Figure 7 As shown, when the vibration of the air is larger (the sound is louder), the amplitude of the air vibration received by the second silencer box 6 is larger, causing the second silencer box 6 to vibrate, that is, the second silencer box 6 slides along the inner wall of the first silencer box 5, thereby expanding the space between the first silencer box 5 and the second silencer box 6, so that more silencer holes can be used, thereby enhancing the effect of sound insulation and shock absorption.

[0032] It is worth noting that the inlet diameter of the first silencer box 5 is smaller than the inner diameter in order to reduce the air vibration rebounding out of the first silencer box 5 .

[0033] refer to Figure 1-Figure 8, a cleaning component includes a collecting box 9 arranged at the bottom end of the second silencer box 6, a collecting hole is opened at the bottom end of the second silencer box 6, and the collecting hole is connected to the collecting box 9, a second cleaning frame 20 is slidably installed on the inner wall of the second silencer box 6, and when the second silencer box 6 vibrates up and down, the second cleaning frame 20 and the second silencer box 6 move toward each other, a transmission frame 19 is slidably installed inside the box body 1, a first magnet is arranged on the transmission frame 19, and a second cleaning frame 20 is provided with a second magnet attracted to the first magnet, an elastic air bag 8 is fixedly installed on the bottom wall of the box body 1, a pressing plate 7 is connected to the bottom wall of the second silencer box 6, and the pressing plate 7 is in full contact with the elastic air bag 8, a piston tube 15 is fixedly installed on the top wall of the pressing plate 7, a piston rod 16 is movably inserted on the piston tube 15, and the top of the piston rod 16 is fixedly connected to the transmission frame 19, and the piston tube 15 The bottom end is connected with the elastic airbag 8, and the collecting box 9 and the elastic airbag 8 are connected. A first cleaning frame 14 is rotatably installed on the first silencer box 5, and when the second silencer box 6 vibrates up and down, the first cleaning frame 14 rotates, and a bracket 12 is slidably installed at the top opening of the first silencer box 5, and a threaded rod 13 is rotatably penetrated on the bracket 12, and an adjusting frame is fixedly installed on the threaded rod 13. The first cleaning frame 14 is rotatably installed on the adjusting frame, and a torsion spring is provided at the rotating connection. A mounting plate 4 is provided on the inner wall of the box body 1, and a mounting hole is opened on the mounting plate 4. The first silencer box 5 is slidably installed in the mounting hole, and a fixing frame 10 is fixedly installed on the mounting plate 4, and a fixing plate 11 is fixedly installed on the fixing frame 10. A threaded hole matched with the threaded rod 13 is opened on the fixing plate 11, and the threaded rod 13 is rotatably connected with the collecting hole.

[0034] In order to ensure long-term silencing quality, a cleaning component is provided. When the second silencer box 6 vibrates (vibrates up and down along the first silencer box 5), the pressure plate 7 squeezes the elastic airbag 8, and the air in the elastic airbag 8 enters the piston tube 15. The piston rod 16 extends out of the piston tube 15, and the piston rod 16 pushes the transmission frame 19 to move upward (the second silencer box 6 moves downward at this time). The transmission frame 19 and the second silencer box 6 move in opposite directions. The transmission frame 19 utilizes the magnetic attraction between the first magnet and the second magnet to drive the second cleaning frame 20 to move synchronously, so that the second cleaning frame 20 cleans the inner walls of the first silencer box 5 and the second silencer box 6.

[0035] In addition, when the second silencer box 6 vibrates up and down, the second silencer box 6 moves downward, which pulls the threaded rod 13 downward. When the threaded rod 13 moves downward, it transmits power to the threaded hole, and the threaded rod 13 rotates. The threaded rod 13 drives the adjustment frame and the first cleaning frame 14 to rotate. During the rotation of the first cleaning frame 14, the inner wall of the second silencer box 6 is cleaned.

[0036] The first cleaning rack 14 and the second cleaning rack 20 are provided with brushes to adapt to the depth of the silencer hole. Secondly, the vibration of the air can also be used to assist the brushes in cleaning the dust. The cleaned dust enters the collection box 9 through the collection hole under the action of gravity.

[0037] It is worth noting that the piston tube 15 is provided with an air outlet at the bottom end and an air inlet at the top end, and a one-way valve is provided on the air outlet and the air inlet respectively.

[0038] When the elastic airbag 8 is reset, the elastic airbag 8 absorbs the air in the collection box 9, so that the air in the muffler box flows to the collection box 9, which can guide the dust.

[0039] A one-way valve is provided at the connection between the collecting box 9 and the elastic airbag 8 , and a one-way valve is provided at the connection between the elastic airbag 8 and the piston tube 15 .

[0040] refer to Figure 1-Figure 8 An air collecting box 18 is provided on the top wall of the first silencer box 5, an auxiliary pipe 21 is provided on the inner wall of the first silencer box 5, and the air collecting box 18 and the auxiliary pipe 21 are connected, a connecting pipe 17 is connected between the air collecting box 18 and the top of the piston tube 15, and a solenoid valve is provided at the connection between the air collecting box 18 and the auxiliary pipe 21, and a detection controller is provided in the box body 1, the controller includes a third magnet 22 slidably mounted on the inner wall of the box body 1, an electromagnet 23 is fixedly mounted on the inner wall of the box body 1, and the electromagnet 22 repels the third magnet 23 when energized, a trigger rod 24 is fixedly mounted on the third magnet 22, and a push switch 25 for controlling the solenoid valve is fixedly mounted on the inner wall of the box body 1, the trigger rod 24 is away from the push switch 25 when energized, and the electromagnet 23 is electrically connected to the circuit of the speaker 3.

[0041] In order to improve the cleaning effect, when the piston rod 16 slides along the piston tube 15, the air at the upper end of the piston tube 15 is continuously passed through the connecting tube 17 into the air collecting box 18. A one-way valve is provided on the connecting tube 17, which cooperates with the air inlet hole so that when the piston rod 16 slides, the air in the piston tube 15 moves unidirectionally to the air collecting box 18, so that the air pressure in the air collecting box 18 increases. At this time, the sound is in working state, and the electromagnet 23 starts to repel the third magnet 22. The third magnet 22 slides along the inner wall of the box body 1, and the trigger rod 24 moves away from the push switch 25. When the sound stops working, the electromagnet 23 stops working, and the third magnet 22 attracts the electromagnet 23. The trigger rod 24 approaches the push switch 25 and triggers it, so that the solenoid valve opens, and the air in the air collecting box 18 quickly enters the auxiliary pipe 21. The auxiliary pipe 21 is provided with multiple nozzles. The rapid airflow enters the second silencer box 6, blowing the dust into the collection box 9.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A structure for preventing vibration damage to internal components of a sound box, comprising a box body (1) and a speaker (3) installed in the box body (1), characterized in that: Also includes: The sound-absorbing and vibration-damping assembly comprises a first sound-absorbing box (5) fixedly mounted in a box body (1), a second sound-absorbing box (6) being slidably mounted below the first sound-absorbing box (5), and a plurality of sound-absorbing holes being arranged on the inner walls of the first sound-absorbing box (5) and the second sound-absorbing box (6); The cleaning component comprises a collecting box (9) arranged at the bottom end of a second muffler box (6); a collecting hole is opened at the bottom end of the second muffler box (6), the collecting hole is communicated with the collecting box (9); a second cleaning frame (20) is slidably mounted on the inner wall of the second muffler box (6); when the second muffler box (6) vibrates up and down, the second cleaning frame (20) and the second muffler box (6) move towards each other; a first cleaning frame (14) is rotatably mounted on the first muffler box (5); when the second muffler box (6) vibrates up and down, the first cleaning frame (14) rotates.

2. The structure for preventing vibration damage to internal components of a sound box according to claim 1, characterized in that: A transmission frame (19) is slidably mounted inside the box body (1), a first magnet is arranged on the transmission frame (19), and a second magnet attracted to the first magnet is arranged on the second cleaning frame (20).

3. The structure for preventing vibration damage to internal components of a sound box according to claim 2, characterized in that: An elastic airbag (8) is fixedly mounted on the bottom wall of the box body (1); a pressure plate (7) is connected to the bottom wall of the second silencer box (6), and the pressure plate (7) is in full contact with the elastic airbag (8); a piston tube (15) is fixedly mounted on the top wall of the pressure plate (7); a piston rod (16) is movably inserted into the piston tube (15); the top end of the piston rod (16) is fixedly connected to a transmission frame (19); the bottom end of the piston tube (15) is connected to the elastic airbag (8); and the collection box (9) and the elastic airbag (8) are connected.

4. The structure for preventing vibration damage to internal components of a sound box according to claim 3, characterized in that: A bracket (12) is slidably mounted at the top opening of the first muffler box (5), a threaded rod (13) is rotatably penetrated on the bracket (12), an adjustment frame is fixedly mounted on the threaded rod (13), the first cleaning frame (14) is rotatably mounted on the adjustment frame, and a torsion spring is provided at the rotation connection, a mounting plate (4) is provided on the inner wall of the box body (1), and a mounting hole is provided on the mounting plate (4), the first muffler box (5) is slidably mounted in the mounting hole, a fixing frame (10) is fixedly mounted on the mounting plate (4), a fixing plate (11) is fixedly mounted on the fixing frame (10), a threaded hole matching the threaded rod (13) is provided on the fixing plate (11), and the threaded rod (13) is rotatably connected to the collecting hole.

5. The structure for preventing vibration damage to internal components of a sound box according to claim 4, characterized in that: The opening diameter of the top end of the first silencer box (5) is smaller than the inner diameter of the first silencer box (5), and the bottom wall of the second silencer box (6) is an inclined surface.

6. The structure for preventing vibration damage to internal components of a sound box according to claim 5, characterized in that: An air collecting box (18) is provided on the top wall of the first muffler box (5), an auxiliary pipe (21) is provided on the inner wall of the first muffler box (5), and the air collecting box (18) and the auxiliary pipe (21) are connected, and a connecting pipe (17) is connected between the air collecting box (18) and the top end of the piston tube (15).

7. The structure for preventing vibration damage to internal components of a sound box according to claim 6, characterized in that: A solenoid valve is provided at the connection between the air collecting box (18) and the auxiliary pipe (21), and a detection controller is provided in the box body (1). The controller includes a third magnet (22) slidably mounted on the inner wall of the box body (1), an electromagnet (23) is fixedly mounted on the inner wall of the box body (1), and the electromagnet (22) repels the third magnet (23) when power is supplied, a trigger rod (24) is fixedly mounted on the third magnet (22), and a push switch (25) for controlling the solenoid valve is fixedly mounted on the inner wall of the box body (1), and the trigger rod (24) is away from the push switch (25) when power is supplied to the electromagnet (23), and the electromagnet (23) is electrically connected to the circuit of the speaker (3).

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