Dustproof pad structure for loudspeaker

Abstract

The utility model discloses a dustproof pad structure for a loudspeaker, which comprises a loudspeaker protection shell, the output side of the loudspeaker protection shell is provided with a drum membrane, the outer end of the loudspeaker protection shell is movably clamped and provided with a dustproof shell, and the outer side of the dustproof shell is clamped and provided with a dustproof filter screen. And a protective cover is attached and bolted to the outer side of the limiting plate on the outer side of the mounting groove. A conical connecting plate is arranged on the outer side of the dustproof filter screen, a dustproof mechanism composed of the conical connecting plate and the dustproof filter screen is of an open circular truncated cone structure, sound can be amplified outwards after the tympanic membrane vibrates to make a sound, and meanwhile the conical connecting plate is of a hard structure, so that the dustproof filter screen and the conical connecting plate can better conduct vibration; and a rubber groove formed in the bottom of the dustproof shell and a sealing gasket embedded in the bottom of the protection cover can improve the sealing performance of the connection position of the device, and dustproof protection on the loudspeaker is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a dust-proof pad structure for a loudspeaker. Background Technique

[0002] The loudspeaker is divided into several different musical instruments. One is a wind instrument, which is thin at the top and thick at the bottom and is mostly made of copper. Another is a modern electro-acoustic component, which is used to convert electrical signals into sound and is also called a loudspeaker. It can also be used to describe a person who acts as a booster or a propagandist. During long-term use, foreign objects and dust attached to the loudspeaker will affect its use. The existing dust-proof pads for loudspeakers are all fixed on the loudspeaker by adhesive, which makes it very inconvenient to disassemble and replace them, thus affecting the normal use of the loudspeaker.

[0003] According to the authorized announcement number CN 211089859 U, a dust-proof pad for a loudspeaker is disclosed, including a base, a dust-proof pad body and a tympanic membrane mechanism. The dust-proof pad body includes a dust-proof base. A fixing block is fixedly connected to the lower end of the inner wall of the dust-proof base. The base is fixedly connected to the dust-proof base through the fixing block. A spring A is fixedly connected to the lower surface of the dust-proof base. A rubber pad is fixedly connected to the lower surface of the spring A; By designing the base, spring A, fixing block and rubber pad at one end of the spring A installed on the lower surface of the dust-proof base, the disassembly and installation of the dust-proof base and the dust-proof membrane are ensured, the replacement steps are simplified, and the service life of the device is ensured.

[0004] The above patent only considers the convenience of disassembling the dust-proof pad during use and cannot avoid affecting the sound quality during the use of the loudspeaker. Therefore, a dust-proof pad structure for a loudspeaker is needed now. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dust-proof pad structure for a loudspeaker, which protects the tympanic membrane by setting a dust-proof shell and a dust-proof filter screen to solve the technical problems mentioned in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A dust-proof pad structure for a loudspeaker, including a loudspeaker protection housing. A tympanic membrane is arranged on the output side of the loudspeaker protection housing. A dust-proof shell is movably clamped and installed on the outer end of the loudspeaker protection housing. A dust-proof filter screen is clamped and installed on the outer side of the dust-proof shell. A protection cover is bolted and installed on the outer side of the installation groove and attached to the outer side of the limiting plate;

[0007] A conical connecting plate is connected to the outer side of the dust-proof filter screen. A limiting plate is fixedly installed on the outer side of the conical connecting plate.

[0008] Preferably, a limiting card slot is provided on the outer arc surface of the horn protection housing. An installation disc is fixedly installed at the outer end of the tympanic membrane. The installation disc is snapped into the opening of the horn protection housing, and a protective rubber strip is fixedly installed on the outer end surface of the installation disc.

[0009] Preferably, an installation groove is provided at the top of the dust-proof housing. A through hole is provided through the center of the dust-proof housing. A rubber groove is provided at the bottom of the dust-proof housing. The dust-proof housing is snap-connected to the outer end surface of the horn protection housing, and the protective rubber strip is arranged in contact with the inner wall of the rubber groove.

[0010] Preferably, a number of groups of grooves are provided on the outer arc surface of the dust-proof housing at equal radian intervals. A set of elastic plates are elastically installed inside each group of grooves. A positioning convex block is fixedly installed on one side of the elastic plate. Each group of positioning convex blocks is elastically snapped into the limiting card slot.

[0011] Preferably, the limiting plate is snapped into the installation groove, and the dust-proof filter screen extends into the dust-proof housing through the through hole. A number of groups of threaded holes are provided through the limiting plate and the installation groove at equal radian intervals.

[0012] Preferably, a number of groups of locking bolts are installed through the protection cover at equal radian intervals. A sealing gasket is embedded at the bottom of the protection cover. The locking bolts pass through the threaded holes inside the limiting plate and are threadedly connected to the threaded holes inside the installation groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. A conical connecting plate is provided on the outside of the dust-proof filter screen. The dust-proof mechanism composed of the conical connecting plate and the dust-proof filter screen is in the shape of an open frustum of a cone, which can amplify the sound outward after the tympanic membrane vibrates to emit sound. At the same time, the conical connecting plate is a rigid structure, enabling the dust-proof filter screen and the conical connecting plate to better conduct vibrations, thereby minimizing the impact on the sound quality to the greatest extent.

[0015] 2. The dust-proof housing is snap-connected to the limiting card slot through the elastic plate and the positioning convex block, making the entire dust-proof housing more convenient to remove. At the same time, the rubber groove provided at the bottom of the dust-proof housing and the sealing gasket embedded at the bottom of the protection cover can both improve the sealing performance at the connection of the device, greatly enhancing the dust-proof protection for the horn. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic exploded view of the installation structure of the dust-proof housing of the present utility model;

[0018] Figure 3 is a schematic exploded view of the installation structure of the dust-proof filter screen of the present utility model;

[0019] Figure 4 Schematic diagram of the bottom structure of the dust-proof housing of the present utility model;

[0020] Figure 5 Enlarged schematic diagram of the structure at position A of the present utility model.

[0021] In the figure: 1, horn protection housing; 2, limit card slot; 3, tympanic membrane; 4, mounting plate; 5, protective rubber strip; 6, dust-proof housing; 7, mounting groove; 8, rubber groove; 9, elastic plate; 10, positioning convex block; 11, limit plate; 12, conical connecting plate; 13, dust-proof filter screen; 14, protective cover; 15, locking bolt; 16, sealing gasket. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides: a dust-proof pad structure for a horn, as Figures 1 - 5 shown, including a horn protection housing 1, a tympanic membrane 3 is arranged on the output side of the horn protection housing 1, a dust-proof housing 6 is movably clamped and installed on the outer end of the horn protection housing 1, a dust-proof filter screen 13 is clamped and installed on the outer side of the dust-proof housing 6, and a protective cover 14 is bolted and installed on the outer side of the mounting groove 7 and on the outer side of the limit plate 11; a conical connecting plate 12 is connected to the outer side of the dust-proof filter screen 13, and a limit plate 11 is fixedly installed on the outer side of the conical connecting plate 12.

[0024] Preferably, a limiting card slot 2 is formed on the outer arc surface of the horn protection housing 1. An installation disc 4 is fixedly installed at the outer end of the tympanic membrane 3. The installation disc 4 is snapped into the opening of the horn protection housing 1. A protective rubber strip 5 is fixedly installed on the outer end surface of the installation disc 4. The limiting card slot 2 formed on the outer arc surface of the horn protection housing 1 can cooperate with the elastic plate 9 and the positioning convex block 10 to limit the whole dust-proof housing 6, so that the dust-proof housing 6 can be quickly snapped onto the horn protection housing 1, thereby limiting the dust-proof filter screen 13. By blocking with the dust-proof filter screen 13, sundries are largely blocked from adhering to the surface of the tympanic membrane 3, thus causing loss in the overall use of the horn. At the same time, the installation disc 4 installed at the outer end of the tympanic membrane 3 ensures the specific installation position of the tympanic membrane 3. The protective rubber strip 5 installed on the outer end surface of the installation disc 4 can seal the connection position after the dust-proof housing 6 and the horn protection housing 1 are fitted together, thereby further improving the sealing performance of the device. A conical connecting plate 12 is arranged outside the dust-proof filter screen 13. The dust-proof mechanism composed of the conical connecting plate 12 and the dust-proof filter screen 13 is in the shape of an open frustum. It can amplify the sound outward after the tympanic membrane 3 vibrates to emit sound. At the same time, the conical connecting plate 12 is a rigid structure, so that the dust-proof filter screen 13 and the conical connecting plate 12 can better conduct vibration, thereby minimizing the impact on the sound quality to the greatest extent.

[0025] Further, an installation groove 7 is formed at the top end of the dust-proof housing 6. A through hole runs through the center of the dust-proof housing 6. A rubber groove 8 is formed at the bottom of the dust-proof housing 6. The dust-proof housing 6 is snap-fitted to the outer end surface of the horn protection housing 1, and the protective rubber strip 5 is arranged in contact with the inner wall of the rubber groove 8. The installation groove 7 formed at the top end of the dust-proof housing 6 cooperates with the limiting plate 11 to limit the dust-proof filter screen 13, so that the dust-proof filter screen 13 can stably protect the tympanic membrane 3 and prevent dust from adhering.

[0026] Furthermore, a number of groups of grooves are equiangularly formed on the outer arc surface of the dust-proof housing 6. A group of elastic plates 9 are elastically installed inside each group of grooves. A positioning convex block 10 is fixedly installed on one side of the elastic plate 9. Each group of positioning convex blocks 10 is elastically snapped into the limiting card slot 2. The elastic plates 9 installed on the outer arc surface of the dust-proof housing 6 can deform when the dust-proof housing 6 is snap-fitted to the horn protection housing 1, so that the positioning convex blocks 10 can be stably snapped into the limiting card slot 2, thereby improving the convenience of connection between the horn protection housing 1 and the dust-proof housing 6.

[0027] It should be noted that the limiting plate 11 is snapped into the installation groove 7, and the dust-proof filter screen 13 extends into the dust-proof housing 6 through the through hole. A number of groups of threaded holes are equiangularly formed through the limiting plate 11 and the installation groove 7. The threaded holes formed on the limiting plate 11 and the installation groove 7 can be used in cooperation with the locking bolts 15 to ensure the force on the limiting plate 11 by the protective cover 14, thereby improving the stability of the use of the dust-proof filter screen 13, and further ensuring the blocking of the tympanic membrane 3 by the dust-proof filter screen 13 to ensure the safety of the device during use.

[0028] Specifically, several groups of locking bolts 15 are installed through the inside of the protective cover 14 with equal arcs. A gasket 16 is embedded and installed at the bottom of the protective cover 14. The locking bolts 15 pass through the threaded holes inside the limiting plate 11 and are threadedly connected to the threaded holes inside the installation groove 7. The staff can lock the relationship among the protective cover 14, the limiting plate 11 and the dust-proof housing 6 by rotating the locking bolts 15. The gasket 16 installed at the bottom of the protective cover 14 can fit the surface of the limiting plate 11 to further improve the sealing performance of the dust-proof filter screen 13 during use.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust-proof pad structure for a speaker, characterized in that: It includes a horn protection housing (1). A tympanic membrane (3) is arranged on the output side of the horn protection housing (1). A dust-proof housing (6) is movably clamped and installed at the outer end of the horn protection housing (1). A dust-proof filter screen (13) is clamped and installed on the outer side of the dust-proof housing (6). An installation groove (7) is opened at the top end of the dust-proof housing (6). A protective cover (14) is bolted and installed on the outer side of the limit plate (11) on the outer side of the installation groove (7). A conical connecting plate (12) is connected to the outer side of the dust-proof filter screen (13). A limit plate (11) is fixedly installed on the outer side of the conical connecting plate (12).

2. The dust-proof pad structure for a speaker according to claim 1, characterized in that: A limit card slot (2) is opened on the outer arc surface of the horn protection housing (1). An installation disc (4) is fixedly installed at the outer end of the tympanic membrane (3). The installation disc (4) is snapped into the opening of the horn protection housing (1). A protective rubber strip (5) is fixedly installed on the outer end surface of the installation disc (4).

3. The dust-proof pad structure for a speaker according to claim 2, wherein: A through hole is centrally penetrated in the dust-proof housing (6). A rubber groove (8) is opened at the bottom of the dust-proof housing (6). The dust-proof housing (6) is clamped to fit the outer end surface of the horn protection housing (1), and the protective rubber strip (5) is arranged to fit the inner wall of the rubber groove (8).

4. The dust-proof pad structure for a speaker according to claim 3, characterized in that: A number of groups of grooves are equally radian opened on the outer arc surface of the dust-proof housing (6). A set of elastic plates (9) are elastically installed inside each group of grooves. A positioning convex block (10) is fixedly installed on one side of the elastic plate (9). Each group of the positioning convex blocks (10) is elastically snapped into the inside of the limit card slot (2).

5. The dust-proof pad structure for a speaker according to claim 4, characterized in that: The limit plate (11) is snapped into the inside of the installation groove (7), and the dust-proof filter screen (13) extends into the inside of the dust-proof housing (6) through the through hole. A number of groups of threaded holes are equally radian penetrated in the limit plate (11) and the inside of the installation groove (7).

6. The dust-proof pad structure for a loudspeaker according to claim 5, characterized in that: A number of groups of locking bolts (15) are equally radian penetrated and installed inside the protective cover (14). A sealing gasket (16) is embedded and installed at the bottom of the protective cover (14). The locking bolts (15) pass through the threaded holes inside the limit plate (11) and are threadedly connected to the threaded holes inside the installation groove (7).

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