CN112584286B

CN112584286B - Dustproof loudspeaker convenient to dismantle

Info

Publication number: CN112584286B
Application number: CN202011394193.5A
Authority: CN
Inventors: 张小梅
Original assignee: Huizhou Haoyuan Technology Co ltd
Current assignee: Huizhou Haoyuan Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2022-03-08
Anticipated expiration: 2040-12-03
Also published as: CN112584286A

Abstract

The invention discloses a dustproof horn convenient to disassemble, which comprises an installation shell, wherein the front surface of the installation shell is provided with an installation groove, a horn main body is installed inside the installation groove, the inner wall of the installation groove is equidistantly provided with a plurality of T-shaped round holes, a fixing mechanism is limited inside the plurality of T-shaped round holes and is in contact connection with the side surface of the horn main body, the front surface of the horn main body is covered with a dustproof mechanism, the dustproof mechanism consists of a sleeve and a dustproof breathable film, and the sleeve is sleeved and connected with the front surface of the horn main body. According to the loudspeaker main body, the connecting rod is extruded through the second limiting spring, the arc limiting plates are extruded through the connecting rod, the loudspeaker main body is limited and fixed through the arc limiting plates, the installation of the loudspeaker main body is facilitated, the stretching of the arc limiting plates is controlled through the second limiting spring, the detachment of the pull plate main body is facilitated, and the installation and detachment efficiency of the loudspeaker is effectively improved.

Description

Dustproof loudspeaker convenient to dismantle

Technical Field

The invention relates to a dustproof loudspeaker, in particular to a dustproof loudspeaker convenient to disassemble, and belongs to the technical field of loudspeakers.

Background

The loudspeaker is actually a conversion equipment for converting electric energy into sound, when different electronic energy is transmitted to the coil, the coil generates magnetic field interaction of energy and the magnet, the interaction causes paper disc vibration, because the electronic energy changes at any time, the coil of the loudspeaker can move forwards or backwards, so that the paper disc of the loudspeaker can move along with the paper disc, and the action causes the density degree of air to change to generate sound.

Current loudspeaker application field is extensive, but present loudspeaker are at the in-process of installation, installs through the screw, when smooth silk phenomenon appears in the screw, influences the installation and the dismantlement of loudspeaker, and current loudspeaker dustproof effect is relatively poor simultaneously, and easy dust gets into the inside of loudspeaker, leads to loudspeaker to damage, influences the life of loudspeaker, for this reason, needs design a convenient to detach's dustproof loudspeaker.

Disclosure of Invention

The invention aims to provide a dustproof horn convenient to disassemble, and aims to solve the problems that the existing horn in the background art is assembled through screws, when the screws slip, the assembling and disassembling of the horn are affected, meanwhile, the existing horn is poor in dustproof effect, and dust easily enters the interior of the horn, so that the horn is damaged.

In order to achieve the purpose, the invention provides the following technical scheme: comprises an installation shell, the front surface of the installation shell is provided with an installation groove, a loudspeaker main body is arranged in the installation groove, a plurality of T-shaped round holes are equidistantly arranged on the inner wall of the mounting groove, a fixing mechanism is limited in the T-shaped round holes, the fixing mechanism is in contact connection with the side surface of the horn main body, the front surface of the horn main body is covered with a dustproof mechanism, the dustproof mechanism consists of a sleeve and a dustproof breathable film, the sleeve is sleeved and connected with the front surface of the horn main body, a limiting mechanism is arranged between the horn main body and the sleeve, a dustproof and breathable film is fixedly arranged at one end of the sleeve, the top of the mounting groove is embedded with a protective structure which consists of a fixing ring and a protective net, the middle part fixed mounting of solid fixed ring has the protection network, gu fixed ring inlays with the mounting groove and establishes and be connected, just be provided with block mechanism between mounting groove and the solid fixed ring.

As a preferred technical scheme of the invention, the loudspeaker main body comprises a cone, a dust cover, a voice coil, T iron, a magnetic ring, a fixed core support sheet and a blank holder, wherein the top end of the T iron is sequentially sleeved and connected with the magnetic ring and the voice coil, the fixed core support sheet is fixedly installed in the middle of the voice coil, the cone is fixedly installed at the top of the voice coil, the dust cover is fixedly installed at the center of the cone, and the blank holder is fixedly installed at the top end of the cone.

As a preferred technical scheme of the invention, the fixing mechanism comprises an arc-shaped limiting plate, a connecting rod, a second limiting spring and a limiting ring, the second limiting spring is fixedly installed inside the T-shaped round hole, the connecting rod is sleeved and connected at the center of the second limiting spring, the limiting ring is sleeved and connected at the center of the connecting rod, the limiting ring is located inside the T-shaped round hole, one side of the limiting ring is in contact connection with one end of the second limiting spring, one end of the connecting rod is fixedly connected with one side of the arc-shaped limiting plate, and the other side of the arc-shaped limiting plate is in contact connection with the outer wall of the horn main body.

According to a preferred technical scheme, the limiting mechanism comprises a plurality of extrusion springs and two U-shaped blocks, cavities are formed in two sides of a shell of the horn main body, the U-shaped blocks are embedded in the two cavities, the two U-shaped blocks are connected with one side of the cavities in an inserting mode, the extrusion springs are fixedly installed on the wall of one side of each cavity at equal intervals, one ends of the extrusion springs located in the same cavity are fixedly connected with one side of the corresponding U-shaped block, clamping grooves are formed in two sides of the inner wall of the sleeve, and one ends of the two U-shaped blocks are connected with the corresponding clamping grooves in an inserting mode.

As a preferred technical scheme of the invention, the clamping mechanism comprises a conical clamping block, a plurality of first limiting springs, a rotating shaft, a micro servo motor, a winding wheel, a steel wire rope and lifting lugs, wherein T-shaped grooves are formed in the top groove wall and the bottom groove wall of the mounting groove, the conical clamping block is embedded in each of the two T-shaped grooves, the first limiting springs are fixedly mounted on the top groove walls of the two T-shaped grooves at equal intervals, one end of each of the first limiting springs positioned in the same T-shaped groove is fixedly connected with the top end of the corresponding conical clamping block, the lifting lugs are fixedly mounted on both sides of the top end of each conical clamping block, the rotating shaft is rotatably connected to both sides of the inner wall of each T-shaped groove, the winding wheel is sleeved and connected to both ends of each rotating shaft, the steel wire rope is wound and connected on the surface of each winding wheel, one end of each steel wire rope is tied with the corresponding lifting lug, and a motor groove is formed in one side wall of each T-shaped groove, the miniature servo motor is fixedly mounted inside the motor groove, an output shaft of the miniature servo motor is fixedly connected with the end of the rotating shaft, conical grooves are formed in the top end and the bottom end of the fixing ring, and the conical clamping block is connected with the conical grooves in a clamping mode.

According to a preferable technical scheme, buffer rubber pads are attached to one sides of the arc-shaped limiting plates, and anti-skid grains are uniformly distributed on one sides of the buffer rubber pads.

As a preferable technical scheme of the invention, the size of the front face of the horn main body is matched with the inner diameter of the sleeve, and the sealing strip is attached between the sleeve and the horn main body.

As a preferable technical scheme of the invention, the surfaces of the fixing rings and the protective net are coated with uniformly distributed anticorrosive paint.

As a preferred technical scheme of the present invention, a micro servo motor control switch is fixedly installed on an outer wall of the installation housing, and the micro servo motor is electrically connected to an external power supply through the micro servo motor control switch.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the conveniently-disassembled dustproof horn, the connecting rod is extruded by the horn main body through the second limiting spring, the arc limiting plates are extruded by the connecting rod, the horn main body is limited and fixed through the arc limiting plates, the horn main body is convenient to install, the arc limiting plates are controlled to stretch through the second limiting spring, the pulling plate main body is convenient to disassemble, and the horn installation and disassembly efficiency is effectively improved;

2. according to the dustproof horn convenient to disassemble, the dustproof mechanism is sleeved on the front surface of the pull plate main body, the U-shaped block is controlled to be embedded and separated from the clamping groove formed in the inner wall of the dustproof mechanism through the extrusion spring between the dustproof mechanism and the horn main body, so that the dustproof mechanism is convenient to assemble and disassemble, and dust is effectively prevented from entering the interior of the horn main body through the installed dustproof mechanism, and the service life of the horn main body is prevented from being influenced;

3. according to the dustproof loudspeaker convenient to disassemble, the protective net is embedded in the top of the mounting groove, the rotating shaft is driven to rotate by the rotation of the miniature servo motor between the protective net and the mounting groove, the winding wheel is driven to wind and unwind a steel wire rope by the rotation of the rotating shaft, the lifting of the conical fixture block is controlled by the winding and unwinding of the steel wire rope, the conical fixture block is embedded in and separated from the conical groove by the lifting of the conical fixture block, the protective net is installed and fixed, the installed loudspeaker main body is protected conveniently by the protective net, and the loudspeaker is placed to touch at will to be damaged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the interior structure of the mounting groove of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 according to the present invention;

FIG. 4 is a second schematic view of the internal structure of the mounting groove of the present invention;

FIG. 5 is a schematic structural diagram of a speaker according to the present invention;

FIG. 6 is a schematic view of the internal structure of the speaker body according to the present invention;

FIG. 7 is a schematic structural diagram of a dust-proof mechanism according to the present invention;

FIG. 8 is an enlarged view of a portion of the invention shown at B in FIG. 7.

In the figure: 1. installing a shell; 2. mounting grooves; 3. a protective net; 4. a fixing ring; 5. a tapered recess; 6. a horn main body; 7. an arc limiting plate; 8. a dust-proof mechanism; 9. a T-shaped groove; 10. a rotating shaft; 11. a micro servo motor; 12. a winding wheel; 13. a wire rope; 14. lifting lugs; 15. a conical fixture block; 16. a first limit spring; 17. a connecting rod; 18. t-shaped round holes; 19. a second limit spring; 20. a limiting ring; 21. a dustproof and breathable film; 22. a paper basin; 23. a dust cover; 24. a voice coil; 25. t iron; 26. a magnetic coil; 27. fixing a core support plate; 28. pressing edges; 29. a cavity; 30. a compression spring; 31. a U-shaped block; 32. a card slot; 33. a sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution of a detachable dustproof speaker:

according to the drawings 1-8, the horn installation structure comprises an installation shell 1, wherein the front surface of the installation shell 1 is provided with an installation groove 2, a horn main body 6 is installed inside the installation groove 2, the inner wall of the installation groove 2 is equidistantly provided with a plurality of T-shaped round holes 18, a fixing mechanism is limited inside the T-shaped round holes 18 and is in contact connection with the side surface of the horn main body 6, the front surface of the horn main body 6 is covered with a dustproof mechanism 8, the dustproof mechanism 8 consists of a sleeve 33 and a dustproof breathable film 21, the sleeve 33 is sleeved and connected with the front surface of the horn main body 6, a limiting mechanism is arranged between the horn main body 6 and the sleeve 33, one end of the sleeve 33 is fixedly provided with the dustproof breathable film 21, the top of the installation groove 2 is embedded with a protection structure, the protection structure consists of a fixing ring 4 and a protection net 3, the middle part of the fixing ring 4 is fixedly provided with the protection net 3, the fixing ring 4 is embedded and connected with the installation groove 2, and be provided with block mechanism between mounting groove 2 and the solid fixed ring 4, dustproof mechanism 8 that is equipped with has better dustproof effect, the effectual use of avoiding the dust to influence loudspeaker main part 6.

According to fig. 5 and 6, the speaker body 6 is composed of a cone 22, a dust cover 23, a voice coil 24, T-iron 25, a magnetic ring 26, a core fixing support 27 and a blank 28, the top end of the T-iron 25 is sequentially sleeved with the magnetic ring 26 and the voice coil 24, the core fixing support 27 is fixedly installed in the middle of the voice coil 24, the cone 22 is fixedly installed at the top of the voice coil 24, the dust cover 23 is fixedly installed at the center of the cone 22, the blank 28 is fixedly installed at the top end of the cone 22, and the dust cover 23 covered by the cone has a dust-proof effect.

According to fig. 1 and 4, the fixing mechanism includes arc limiting plate 7, connecting rod 17, second limiting spring 19 and spacing ring 20, the inside fixed mounting of T type round hole 18 has second limiting spring 19, the center department cover of second limiting spring 19 is established and is connected with connecting rod 17, the center department cover of connecting rod 17 is established and is connected with spacing ring 20, spacing ring 20 is located the inside of T type round hole 18, one side of spacing ring 20 is connected with the one end contact of second limiting spring 19, one end of connecting rod 17 and one side fixed connection of arc limiting plate 7, the opposite side of arc limiting plate 7 is connected with the outer wall contact of loudspeaker main part 6, through the flexible of second limiting spring 19 control connecting rod 17, through the flexible control arc limiting plate 7 of connecting rod 17, be convenient for the installation and the dismantlement of loudspeaker main part 6.

According to fig. 7 and 8, stop gear includes a plurality of extrusion springs 30 and two U type pieces 31, cavity 29 has all been seted up to loudspeaker main part 6's casing both sides, two cavity 29's inside all inlays and is equipped with U type piece 31, two U type pieces 31 alternate with one side of cavity 29 and are connected, a side chamber wall equidistance fixed mounting of two cavity 29 has a plurality of extrusion springs 30, be located the one end of a plurality of extrusion springs 30 of same cavity 29 inside and correspond one side fixed connection of U type piece 31, draw-in groove 32 has all been seted up to sleeve 33 inner wall both sides, the one end of two U type pieces 31 alternates with corresponding draw-in groove 32 and is connected, through the flexible of extrusion springs 30 control U type piece 31, make U type piece 31 and draw-in groove 32 inlay to establish and separate, be convenient for sleeve 33's installation and dismantlement.

According to the figures 1, 2 and 3, the clamping mechanism comprises a conical clamping block 15, a plurality of first limiting springs 16, a rotating shaft 10, a micro servo motor 11, a winding wheel 12, steel wire ropes 13 and lifting lugs 14, wherein T-shaped grooves 9 are respectively formed in the top groove wall and the bottom groove wall of the mounting groove 2, the conical clamping block 15 is embedded in each of the two T-shaped grooves 9, the first limiting springs 16 are fixedly mounted on the top groove walls of the two T-shaped grooves 9 at equal intervals, one end of each first limiting spring 16 in the same T-shaped groove 9 is fixedly connected with the top end of the corresponding conical clamping block 15, the lifting lugs 14 are fixedly mounted on both sides of the top end of the conical clamping block 15, the rotating shaft 10 is rotatably connected on both sides of the inner wall of the T-shaped groove 9, the winding wheel 12 is sleeved on both ends of the rotating shaft 10, the steel wire ropes 13 are wound on the surfaces of the two winding wheels 12, one end of each steel wire rope 13 is tied with the corresponding lifting lug 14, the motor groove has been seted up to one side cell wall in T type groove 9, the inside fixed mounting in motor groove has miniature servo motor 11, miniature servo motor 11's output shaft and the end fixed connection of pivot 10, toper recess 5 has been seted up to solid fixed ring 4's top and bottom, toper fixture block 15 is connected with toper recess 5 block, rotate the rotation that drives pivot 10 through miniature servo motor 11, rotation through pivot 10 is received and released wire rope 13, the lift of the toper fixture block 15 of being convenient for, the solid fixed ring 4's of being convenient for dismantlement.

According to fig. 1 and 2, one side of a plurality of arc limiting plates 7 is all pasted and is equipped with rubber cushion pad, evenly distributed's anti-skidding line is seted up to one side of a plurality of rubber cushion pad, 6 positive sizes of loudspeaker main part and sleeve 33's internal diameter phase-match, and paste between sleeve 33 and the loudspeaker main part 6 and be equipped with the sealing strip, guarantee the leakproofness of junction, solid fixed ring 4 and protection network 3's surface all is scribbled evenly distributed's anticorrosive paint, the outer wall fixed mounting of installation casing 1 has miniature servo motor control switch, miniature servo motor 11 passes through miniature servo motor control switch and external power supply electric connection.

When the convenient-to-dismount dustproof loudspeaker is used specifically, when the loudspeaker main body 6 needs to be mounted, firstly, the U-shaped blocks 31 on the two sides of the loudspeaker main body 6 are manually pressed into the cavity 29, then the sleeve 33 is sleeved on the surface of the loudspeaker main body 6, the positions of the clamping groove 32 and the U-shaped blocks 31 are ensured to be aligned, then the U-shaped blocks 31 are released, the U-shaped blocks 31 are clamped with the clamping grooves 32 through the extrusion force of the extrusion springs 30, the mounting of the dustproof mechanism 8 is completed, then the arc limiting plates 7 are extruded to be attached to the inner wall of the mounting groove 2, then the loudspeaker main body 6 is mounted at the center of the bottom of the mounting groove 2, then the arc limiting plates 7 are released, the loudspeaker main body 6 is fixed through the extrusion force of the second limiting springs 19 by the arc limiting plates 7, then the fixing ring 4 is embedded into the mounting groove 2, and the conical grooves 5 formed in the outer wall of the fixing ring 4 are ensured to be aligned with the positions of the T-shaped grooves 9, the miniature servo motor 11 is opened, the rotation of the rotary shaft 10 is driven by the rotation of the miniature servo motor 11, and the steel wire rope 13 is driven to be wound and unwound by the rotation of the rotary shaft 10, so that the conical fixture block 15 is controlled to be embedded in the conical groove 5, the installation of the protective net 3 is completed, and the use of the horn main body 6 is effectively prevented from being influenced by dust;

when this loudspeaker main part 6 is dismantled to needs, at first artificial miniature servo motor 11 of opening, rotate through miniature servo motor 11 and drive pivot 10 and rotate, rotate through pivot 10 and drive wind-up wheel 12 and carry out the rolling to wire rope 13, thereby pulling toper fixture block 15 and conical groove 5 separation, will gu fixed ring 4 and mounting groove 2 separation after that, later artificial promotion arc limiting plate 7, make arc limiting plate 7 and loudspeaker main part 6 separation, separate loudspeaker main part 6 and mounting groove 2 after that, accomplish the dismantlement of loudspeaker main part 6.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The dustproof horn convenient to disassemble comprises an installation shell (1) and is characterized in that the front of the installation shell (1) is provided with an installation groove (2), a horn main body (6) is installed inside the installation groove (2), a plurality of T-shaped round holes (18) are formed in the inner wall of the installation groove (2) at equal intervals, a fixing mechanism is limited inside the T-shaped round holes (18), the fixing mechanism is in contact connection with the side surface of the horn main body (6), a dustproof mechanism (8) is covered on the front surface of the horn main body (6), the dustproof mechanism (8) consists of a sleeve (33) and a dustproof breathable film (21), the sleeve (33) is sleeved with the front surface of the horn main body (6) and is connected with the front surface of the horn main body (6), a limiting mechanism is arranged between the horn main body (6) and the sleeve (33), the dustproof breathable film (21) is fixedly installed at one end of the sleeve (33), a protective structure is embedded in the top of the mounting groove (2), the protective structure is composed of a fixing ring (4) and a protective net (3), the protective net (3) is fixedly mounted in the middle of the fixing ring (4), the fixing ring (4) is embedded and connected with the mounting groove (2), and a clamping mechanism is arranged between the mounting groove (2) and the fixing ring (4);

the fixing mechanism comprises an arc limiting plate (7), a connecting rod (17), a second limiting spring (19) and a limiting ring (20), the second limiting spring (19) is fixedly mounted inside the T-shaped round hole (18), the connecting rod (17) is sleeved and connected at the center of the second limiting spring (19), the limiting ring (20) is sleeved and connected at the center of the connecting rod (17), the limiting ring (20) is located inside the T-shaped round hole (18), one side of the limiting ring (20) is in contact connection with one end of the second limiting spring (19), one end of the connecting rod (17) is fixedly connected with one side of the arc limiting plate (7), and the other side of the arc limiting plate (7) is in contact connection with the outer wall of the horn main body (6);

the limiting mechanism comprises a plurality of extrusion springs (30) and two U-shaped blocks (31), cavities (29) are formed in two sides of a shell of the horn main body (6), the U-shaped blocks (31) are embedded in the cavities (29), the U-shaped blocks (31) are connected with one sides of the cavities (29) in an inserting mode, the extrusion springs (30) are fixedly installed on one side of the cavity wall of each cavity (29) in an equidistant mode, one ends of the extrusion springs (30) located in the same cavity (29) are fixedly connected with one side of the corresponding U-shaped block (31), clamping grooves (32) are formed in two sides of the inner wall of the sleeve (33), and one ends of the two U-shaped blocks (31) are connected with the corresponding clamping grooves (32) in an inserting mode;

the clamping mechanism comprises a conical clamping block (15), a plurality of first limiting springs (16), a rotating shaft (10), a miniature servo motor (11), a winding wheel (12), a steel wire rope (13) and lifting lugs (14), T-shaped grooves (9) are formed in the top groove wall and the bottom groove wall of the mounting groove (2), the conical clamping block (15) is embedded in each of the two T-shaped grooves (9), the first limiting springs (16) are fixedly mounted on the top groove walls of the two T-shaped grooves (9) at equal intervals, one end of each first limiting spring (16) in the same T-shaped groove (9) is fixedly connected with the top end of the corresponding conical clamping block (15), the lifting lugs (10) are rotatably connected to two sides of the inner wall of each T-shaped groove (9), the winding wheel (12) is sleeved and connected to two ends of each rotating shaft (10), two the equal winding in surface of wind-up wheel (12) is connected with wire rope (13), two the one end of wire rope (13) with correspond lug (14) tether, the motor groove has been seted up to one side cell wall of T type groove (9), the inside fixed mounting in motor groove has miniature servo motor (11), the output shaft of miniature servo motor (11) and the end fixed connection of pivot (10), conical groove (5) have been seted up to the top and the bottom of solid fixed ring (4), conical fixture block (15) are connected with conical groove (5) block.

2. The dustproof horn convenient to disassemble as claimed in claim 1, wherein: loudspeaker main part (6) are by cone (22), dust cover (23), voice coil loudspeaker voice coil (24), T iron (25), magnetosphere (26), decide core support piece (27) and blank pressing (28), the top of T iron (25) overlaps in proper order and is established and be connected with magnetosphere (26) and voice coil loudspeaker voice coil (24), the middle part fixed mounting of voice coil loudspeaker voice coil (24) decides core support piece (27), the top fixed mounting of voice coil loudspeaker voice coil (24) has cone (22), the center of cone loudspeaker voice coil (22) is located fixed mounting and is had dust cover (23), the top fixed mounting of cone loudspeaker voice coil (22) has blank pressing (28).

3. The dustproof horn convenient to disassemble as claimed in claim 1, wherein: a plurality of buffer rubber pads are attached to one sides of the arc-shaped limiting plates (7), and anti-skid grains which are uniformly distributed are arranged on one sides of the buffer rubber pads.

4. The dustproof horn convenient to disassemble as claimed in claim 1, wherein: the size of loudspeaker main part (6) front and the internal diameter phase-match of sleeve (33), just it is equipped with the sealing strip to paste between sleeve (33) and loudspeaker main part (6).

5. The dustproof horn convenient to disassemble as claimed in claim 1, wherein: and the surfaces of the fixing ring (4) and the protective net (3) are coated with anticorrosive paint which is uniformly distributed.

6. The dustproof horn convenient to disassemble as claimed in claim 1, wherein: the outer wall fixed mounting of installation casing (1) has miniature servo motor control switch, miniature servo motor (11) are through miniature servo motor control switch and external power supply electric connection.