Loudspeaker with dustproof structure

Abstract

The utility model discloses a loudspeaker with a dustproof structure, which is applied to the field of loudspeakers and comprises a permanent magnet, a basin frame is mounted at the top of the permanent magnet, a vibrating diaphragm is mounted on the surface of a coil at the top of the permanent magnet, a dustproof net cover is placed in the basin frame, mounting grooves are symmetrically formed in the basin frame, and the mounting grooves are arranged in the mounting grooves. A limiting baffle is arranged in the mounting groove, a first fixing spring is connected between one side of the limiting baffle and the mounting groove through a spring fixing piece in a bolting mode, the surface of the permanent magnet is fixedly sleeved with a fixing sleeve plate, a protection plate is arranged at the bottom of the permanent magnet, and a through groove is formed in the protection plate; the dustproof net cover can be conveniently disassembled and assembled, the operation is simple and labor-saving, the cleaning efficiency of personnel is improved, the flexibility is good, meanwhile, the bottom protection function can be achieved, damage to the loudspeaker under the falling and impact conditions is reduced, the service life of the loudspeaker is prolonged, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of loudspeakers, in particular to a loudspeaker with a dustproof structure. Background Art

[0002] A speaker is a transducer device that converts electrical signals into sound signals. The performance of the speaker has a great influence on the sound quality. The speaker is the weakest device in the audio equipment, but for the sound effect, it is the most important component. There are many types of speakers and the prices vary greatly. Audio electrical energy is transmitted through electromagnetic, piezoelectric or electrostatic effects, causing the paper cone or diaphragm to vibrate and resonate (resonate) with the surrounding air to produce sound.

[0003] Although the metal basin of the existing speaker is equipped with a dustproof mesh cover to prevent dust from entering the sensitive interior, there are still other problems during use. For example, it is inconvenient to disassemble and assemble the dustproof mesh cover. The dustproof mesh cover is connected to the basin frame by screw bolts. When there is a lot of dust attached to the dustproof mesh cover and affects the sound, personnel need to use tools to disassemble and assemble the screws used for fixing before the mesh cover can be taken out. The operation is cumbersome and complicated, and the bottom does not have an anti-fall protection function. When the speaker falls down with the bottom facing down or is hit by foreign objects during carrying, the permanent magnet will be directly hit, which is easy to cause damage to the permanent magnet and has poor safety. In order to solve the above problems, we propose a speaker with a dustproof structure. Utility Model Content

[0004] The utility model aims to provide a loudspeaker with a dustproof structure, which solves the problem that the dustproof mesh cover of the existing loudspeaker is inconvenient to be disassembled and assembled and has no bottom protection function.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a loudspeaker with a dustproof structure, comprising a permanent magnet, a basin frame is installed on the top of the permanent magnet, a diaphragm is installed on the surface of the coil on the top of the permanent magnet, a dustproof mesh cover is placed inside the basin frame, mounting grooves are symmetrically opened inside the basin frame, a limit baffle is arranged inside the mounting groove, a first fixing spring is bolted between one side of the limit baffle and the mounting groove through a spring fixing sheet, a fixing sleeve is fixedly sleeved on the surface of the permanent magnet, a protective plate is arranged at the bottom of the permanent magnet, a through groove is opened inside the protective plate, and a second fixing spring is bolted between the top of the protective plate and the fixing sleeve through a spring fixing sheet.

[0006] The above technical solution can facilitate the disassembly and assembly of the dustproof mesh cover, which is simple and labor-saving to operate, improves the cleaning efficiency of personnel, and has good flexibility. At the same time, it can have a bottom protection function, reduce the damage to the speaker caused by falling and hitting, extend the service life of the speaker, and is highly practical.

[0007] The utility model is further configured as follows: a supporting ring plate is welded inside the basin frame, and the top of the supporting ring plate is fitted with the bottom of the dustproof net cover.

[0008] By adopting the above technical solution, the dustproof net cover can be supported by setting the supporting ring plate to prevent the dustproof net cover from falling too deep when being inserted.

[0009] The utility model is further configured as follows: a first limiting rod is welded inside the installation groove, a limiting groove is arranged inside the limiting baffle, and the other end of the first limiting rod extends to the inside of the limiting groove.

[0010] By adopting the above technical solution, the limiting baffle can be limited by setting the first limiting rod and the limiting groove, so as to prevent the limiting baffle from tilting when moving inward.

[0011] The utility model is further configured as follows: a second limiting rod is welded on the top of the protective plate, and the other end of the second limiting rod penetrates and extends to the top of the fixed sleeve plate.

[0012] By adopting the above technical solution, the protective plate can be limited by setting the second limiting rod to prevent the protective plate from tilting and loosening when it moves upward under force.

[0013] The utility model is further configured as follows: a wear-resistant pad is bonded to the bottom of the protective plate.

[0014] By adopting the above technical solution and providing the wear-resistant pad, the wear-resistant effect of the bottom of the protective plate can be improved.

[0015] The utility model is further configured as follows: a pull rod is welded on the top of the limit baffle, the other end of the pull rod passes through and extends to the top of the basin frame, and a sliding groove is opened on the top of the basin frame.

[0016] By adopting the above technical solution and setting the pull rod, it is convenient for personnel to pull the limit baffle inward by hand.

[0017] The utility model is further configured as follows: the first fixing spring and the second fixing spring are both made of carbon spring steel.

[0018] By adopting the above technical solution, the first fixed spring and the second fixed spring have the characteristics of excellent mechanical properties, good anti-elasticity, low temperature resistance and corrosion resistance.

[0019] The utility model is further configured as follows: the basin frame is made of stainless steel.

[0020] By adopting the above technical solution, the basin frame has the characteristics of high strength, low density and excellent corrosion resistance.

[0021] The utility model is further configured as follows: the diaphragm is made of polypropylene material.

[0022] By adopting the above technical solution, the diaphragm has the characteristics of lightness, corrosion resistance and high strength.

[0023] The utility model is further configured as follows: a mounting plate is fixedly sleeved on the surface of the basin frame, and a mounting hole is opened on the top of the mounting plate.

[0024] By adopting the above technical solution and providing the mounting plate, it is convenient for personnel to fix the basin frame with screws.

[0025] In summary, the utility model has the following beneficial effects:

[0026] 1. The utility model allows the user to grab the two pull rods by hand and pull them inward when there is a lot of dust on the surface of the dust net cover. When the pull rods are pulled, they will drive the limit baffle to move inward through the cooperation of the first limit rod and the limit groove. When the limit baffle is completely retracted into the installation groove, the dust net cover can be grabbed with the other hand and lifted up directly. The dust net cover can be easily disassembled and assembled, the operation is simple and labor-saving, the cleaning efficiency of the personnel is improved, and the flexibility is good.

[0027] 2. The utility model causes the bottom of the protective plate to collide with the ground when the speaker falls. The protective plate will move upward under the force of the collision. When moving upward, the protective plate will be pressed onto the second fixed spring through the cooperation of the second limit rod. Since the second fixed spring is elastic, the impact force will be absorbed and offset when the second fixed spring contracts and stores energy. It can have a bottom protection function, reduce damage to the speaker caused by falling and hitting, extend the service life of the speaker, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0029] Figure 2 It is a partial sectional view of the front side of the structure of the utility model;

[0030] Figure 3 It is a top view schematic diagram of the structure of the utility model;

[0031] Figure 4 It is a top sectional view of the structure of the utility model;

[0032] Figure 5This is a schematic diagram of the cooperation between the basin frame and the supporting ring plate of the utility model;

[0033] Figure 6 This utility model Figure 4 A magnified view of the structure in the middle.

[0034] Figure numerals: 1. permanent magnet; 2. basin frame; 3. diaphragm; 4. dust screen cover; 5. mounting groove; 6. limit baffle; 7. first fixed spring; 8. fixed sleeve plate; 9. protective plate; 10. second fixed spring; 11. support ring plate; 12. first limit rod; 13. limit groove; 14. second limit rod; 15. wear-resistant pad; 16. mounting plate; 17. pull rod. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] Embodiment 1:

[0037] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , a loudspeaker with a dustproof structure comprises a permanent magnet 1, a basin frame 2 is installed on the top of the permanent magnet 1, a diaphragm 3 is installed on the surface of the coil on the top of the permanent magnet 1, a dustproof net cover 4 is placed inside the basin frame 2, and a mounting groove 5 is symmetrically opened inside the basin frame 2, a limit baffle 6 is arranged inside the mounting groove 5, and a first fixing spring 7 is bolted between one side of the limit baffle 6 and the mounting groove 5 through a spring fixing sheet. When there is a lot of dust on the surface of the dustproof net cover 4, the two pull rods 17 are grabbed by hand and pulled inward. When the pull rods 17 are pulled, the limit baffle 6 will be driven to move inward through the cooperation of the first limit rod 12 and the limit groove 13. When the limit baffle 6 is completely collected in the interior of the mounting groove 5, the dustproof net cover 4 can be grabbed with the other hand and lifted up directly, which can facilitate the disassembly and assembly of the dustproof net cover 4, the operation is simple and labor-saving, the cleaning efficiency of the personnel is improved, and the flexibility is good.

[0038] refer to Figure 5 A support ring plate 11 is welded inside the basin frame 2, and the top of the support ring plate 11 fits with the bottom of the dustproof net cover 4. Through the setting of the support ring plate 11, the dustproof net cover 4 can be supported to prevent the dustproof net cover 4 from falling too deep when being placed.

[0039] refer to Figure 6A first limiting rod 12 is welded inside the mounting groove 5, and a limiting groove 13 is provided inside the limiting baffle 6. The other end of the first limiting rod 12 extends to the inside of the limiting groove 13. Through the setting of the first limiting rod 12 and the limiting groove 13, the limiting baffle 6 can be limited to prevent the limiting baffle 6 from tilting when moving inward.

[0040] refer to Figure 1 and Figure 3 A pull rod 17 is welded to the top of the limit baffle 6, and the other end of the pull rod 17 passes through and extends to the top of the basin frame 2. A sliding groove is provided on the top of the basin frame 2. Through the setting of the pull rod 17, it is convenient for personnel to pull the limit baffle 6 inward by hand.

[0041] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The basin frame 2 is made of stainless steel and has the characteristics of high strength, low density and excellent corrosion resistance.

[0042] refer to Figure 2 The diaphragm 3 is made of polypropylene, and has the characteristics of lightness, corrosion resistance and high strength.

[0043] refer to Figure 1 , Figure 2 and Figure 3 A mounting plate 16 is fixedly sleeved on the surface of the basin frame 2, and a mounting hole is opened on the top of the mounting plate 16. Through the arrangement of the mounting plate 16, it is convenient for personnel to fix the basin frame 2 with screws.

[0044] Brief description of the usage process: when there is a lot of dust on the surface of the dustproof net cover 4, grab the two pull rods 17 with your hands and pull them inward. When pulling, the pull rods 17 will drive the limit baffle 6 to move inward through the cooperation of the first limit rod 12 and the limit groove 13. When the limit baffle 6 is completely retracted into the inside of the installation groove 5, grab the dustproof net cover 4 with your other hand and lift it up directly.

[0045] Embodiment 2:

[0046] refer to Figure 1 and Figure 2, a speaker with a dustproof structure, a fixed sleeve 8 is fixedly sleeved on the surface of a permanent magnet 1, a protective plate 9 is arranged at the bottom of the permanent magnet 1, a through groove is opened inside the protective plate 9, a second fixed spring 10 is bolted between the top of the protective plate 9 and the fixed sleeve 8 through a spring fixing sheet, when the speaker falls, the bottom of the protective plate 9 will collide with the ground, the protective plate 9 will move upward under the collision force, and the protective plate 9 will be pressed to the second fixed spring 10 under the cooperation of the second limiting rod 14 when moving upward, because the second fixed spring 10 has elasticity, when the second fixed spring 10 contracts and stores energy, it will absorb and offset the impact force, can have a bottom protection function, reduce the damage to the speaker caused by falling and hitting, extend the service life of the speaker, and has high practicality.

[0047] refer to Figure 2 A second limiting rod 14 is welded to the top of the protective plate 9, and the other end of the second limiting rod 14 passes through and extends to the top of the fixed sleeve 8. Through the setting of the second limiting rod 14, the protective plate 9 can be limited to prevent the protective plate 9 from tilting and loosening when it moves upward under force.

[0048] refer to Figure 2 A wear-resistant pad 15 is bonded to the bottom of the protective plate 9. The wear-resistant pad 15 can improve the wear-resistant effect of the bottom of the protective plate 9.

[0049] refer to Figure 2 The first fixed spring 7 and the second fixed spring 10 are both made of carbon spring steel. The first fixed spring 7 and the second fixed spring 10 have the characteristics of excellent mechanical properties, good anti-elasticity, low temperature resistance and corrosion resistance.

[0050] Brief description of the usage process: when the speaker falls, the bottom of the protective plate 9 will collide with the ground. The protective plate 9 will move upward under the collision force. When moving upward, the protective plate 9 will be pressed onto the second fixed spring 10 with the cooperation of the second limit rod 14. Since the second fixed spring 10 is elastic, the impact force will be absorbed and offset when the second fixed spring 10 contracts and stores energy.

[0051] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A loudspeaker with a dustproof structure, comprising a permanent magnet (1), characterized in that: A basin frame (2) is installed on the top of the permanent magnet (1), a diaphragm (3) is installed on the surface of the top coil of the permanent magnet (1), a dustproof screen cover (4) is placed inside the basin frame (2), a mounting groove (5) is symmetrically opened inside the basin frame (2), a limit baffle (6) is arranged inside the mounting groove (5), a first fixing spring (7) is bolted between one side of the limit baffle (6) and the mounting groove (5) through a spring fixing sheet, a fixing sleeve (8) is fixedly sleeved on the surface of the permanent magnet (1), a protective plate (9) is arranged at the bottom of the permanent magnet (1), a through groove is opened inside the protective plate (9), and a second fixing spring (10) is bolted between the top of the protective plate (9) and the fixing sleeve (8) through a spring fixing sheet.

2. The speaker with a dustproof structure according to claim 1, characterized in that: A supporting ring plate (11) is welded inside the basin frame (2), and the top of the supporting ring plate (11) is in contact with the bottom of the dustproof mesh cover (4).

3. The speaker with a dustproof structure according to claim 1, characterized in that: A first limiting rod (12) is welded inside the installation groove (5), a limiting groove (13) is provided inside the limiting baffle (6), and the other end of the first limiting rod (12) extends into the inside of the limiting groove (13).

4. The speaker with a dustproof structure according to claim 1, characterized in that: A second limiting rod (14) is welded to the top of the protective plate (9), and the other end of the second limiting rod (14) passes through and extends to the top of the fixed sleeve plate (8).

5. The speaker with a dustproof structure according to claim 1, characterized in that: A wear-resistant pad (15) is bonded to the bottom of the protective plate (9).

6. The speaker with a dustproof structure according to claim 1, characterized in that: A pull rod (17) is welded to the top of the limit baffle (6), and the other end of the pull rod (17) passes through and extends to the top of the basin frame (2), and a sliding groove is provided on the top of the basin frame (2).

7. The speaker with a dustproof structure according to claim 1, characterized in that: The first fixed spring (7) and the second fixed spring (10) are both made of carbon spring steel.

8. The speaker with a dustproof structure according to claim 1, characterized in that: The basin frame (2) is made of stainless steel.

9. The speaker with a dustproof structure according to claim 1, characterized in that: The diaphragm (3) is made of polypropylene.

10. The loudspeaker with dustproof structure according to claim 1, characterized in that: A mounting plate (16) is fixedly sleeved on the surface of the basin frame (2), and a mounting hole is provided on the top of the mounting plate (16).

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