Waterproof, dustproof and shock-resistant automobile horn

Abstract

The utility model relates to the technical field of automobile horns, in particular to a waterproof, dustproof and shock-resistant automobile horn. The automobile horn comprises a shell, a sound production device is arranged in the shell, the front side of the shell is in threaded connection with a front cover, and a dustproof net, a first sealing gasket, a waterproof sound transmission film and a second sealing gasket are sequentially arranged between the front cover and the shell; a rear cover is clamped on the rear side of the shell in a sliding mode, an elastic gasket is sleeved in the middle, and the rear cover can axially slide relative to the shell by a small distance. After the prior art is improved, the automobile horn protection device can be quickly disassembled and assembled, the dustproof net, the waterproof sound transmission film and the sound production device on the front side of the shell can be regularly cleaned conveniently, the damping structure is simple, the cost is low, and the automobile horn protection device is suitable for automobile horn protection.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automobile horn technical field especially relates to a waterproof dustproof shockproof automobile horn. BACKGROUND

[0002] The automobile horn as one of important safety components of the automobile plays a vital role in the automobile driving process. It is not only the key tool for the driver to transmit warning information to other road users and express driving intention, but also the important equipment to ensure traffic safety and reduce traffic accidents. The existing horn protection device has poor waterproof effect, and the horn can be damaged in rainy days or humid weather. Moreover, the horn can also be damaged due to large vibration amplitude during use, and the shock resistance effect is poor.

[0003] Therefore, the utility model discloses a waterproof dustproof shockproof automobile horn, which solves the problems of inconvenient disassembly and cleaning of the dust screen and the waterproof sound-permeable film in the prior art and complex shock absorption structure and high cost of the first spring and the second spring.

[0004] Therefore, it is necessary to improve the deficiencies of the prior art. SUMMARY

[0005] The utility model discloses a waterproof dustproof shockproof automobile horn, which solves the problems of inconvenient disassembly and cleaning of the dust screen and the waterproof sound-permeable film in the prior art and complex shock absorption structure and high cost of the first spring and the second spring.

[0006] To achieve the above object, the utility model provides the following technical scheme: a waterproof dustproof shockproof automobile horn, including the casing, install sound emitting device in the casing, the front side of casing is detachably connected with front cover, the front cover and casing between by from inside to outside in proper order are equipped with dust screen, first sealing washer, waterproof sound-permeable film and second sealing washer, the front cover top is equipped with the sound-permeable hole of diameter less than dust screen diameter, the front cover is located in the edge inboard of sound-permeable hole can with the dust screen of resistance contact, second sealing ring can with the front side of casing resistance contact.

[0007] By adopting the technical scheme, the front cover is detachably connected with the shell, when the dustproof net, the waterproof sound permeable membrane and the sound generating device on the front side of the shell need to be cleaned, the front cover is detached, the dustproof net, the first sealing gasket, the waterproof sound permeable membrane and the second sealing gasket are taken out and cleaned, and then are reinstalled, the operation of dismounting and mounting is very simple, and the service life is prolonged.

[0008] Further, the front side of the shell is provided with a limiting groove, and the dustproof net, the first sealing gasket, the waterproof sound permeable membrane and the second sealing gasket are all installed in the limiting groove.

[0009] By adopting the technical scheme, the limiting groove can position and fix the dustproof net, the first sealing gasket, the waterproof sound permeable membrane and the second sealing gasket, the installation positions of the components are ensured to be accurate, and the protection effect is improved.

[0010] Further, the front end of the shell is provided with external threads, and the inner wall of the front cover is provided with internal threads matched with the external threads.

[0011] By adopting the technical scheme, the front cover is connected with the shell through the cooperation of the external threads of the shell and the internal threads of the front cover, and the connection is stable and convenient to dismount and mount.

[0012] Further, the rear side of the shell is connected with a rear cover, the middle part of the shell is sleeved with an elastic gasket, one end of the elastic gasket can abut against the middle part of the shell or the front cover, and the other end of the elastic gasket can abut against the rear cover, a plurality of clamping strips are uniformly arranged on the periphery of the rear cover, a clamping protrusion is arranged on the end of each clamping strip close to the shell and extends inward, a clamping groove matched with the clamping strips is arranged on the outer periphery of the shell, the clamping protrusion can slide in the clamping groove along the axial direction of the shell, and the side of the clamping protrusion away from the shell can abut against the side of the clamping groove close to the rear cover.

[0013] By adopting the technical scheme, when the automobile horn is vibrated, the rear cover can slide in the clamping groove through the sliding of the clamping protrusion, and the elastic gasket can buffer, so that the rear cover can slide in the axial direction by a small distance, and the vibration is reduced, the structure is simple, the components are few, and the cost is reduced.

[0014] Further, the end of the clamping protrusion close to the shell is provided with a guide inclined surface, the side of the clamping groove close to the rear cover is connected with a guide groove with a shallow depth, and the rear cover is provided with a dismounting groove at the position corresponding to each clamping strip.

[0015] By adopting the above technical solution, the guide slope and guide groove can facilitate the smooth insertion of the snap-fit ​​strip into the snap-fit ​​groove, while the disassembly groove facilitates the disassembly and installation of the back cover.

[0016] A further provision of the above technical solution is that: the rear side of the housing is provided with an external interface for electrical connection with the sound-generating device, and the rear cover is provided with a clearance hole to facilitate connection between the external interface and the vehicle body interface.

[0017] By adopting the above technical solution, the clearance hole avoids interference between the rear cover and the external interface and the vehicle body interface, ensuring smooth circuit connection.

[0018] A further provision of the above technical solution is that a fixing screw is fixedly connected to the middle of the outer side of the back cover, and a fixing nut is threaded onto the screw.

[0019] Using the above technical solution, the car horn can be easily fixed to the vehicle body by using a fixing screw and a fixing nut.

[0020] The beneficial effects achieved by this utility model are: the front cover and the shell are detachably connected, allowing for quick assembly and disassembly, and facilitating regular cleaning of the dustproof mesh, waterproof and sound-permeable membrane, and the sound-generating device on the front of the shell, thereby extending their service life; the elastic gasket between the rear cover and the shell, which allows for a small axial sliding engagement, provides shock absorption, and the structure is simple, with few parts and low cost. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0022] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0023] Figure 3 yes Figure 2 A partial view at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the front side of the shell in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the back cover in an embodiment of this utility model.

[0026] The markings in the diagram are: 1. Housing; 11. Limiting groove; 12. External thread; 13. Snap-fit ​​groove; 131. Guide groove; 2. Sound-generating device; 3. Front cover; 31. Sound-permeable hole; 32. Internal thread; 4. Dustproof mesh; 5. First sealing gasket; 6. Waterproof and sound-permeable membrane; 7. Second sealing gasket; 8. Rear cover; 81. Snap-fit ​​strip; 811. Snap-fit ​​protrusion; 8111. Guide slope; 82. Disassembly groove; 83. Clearance hole; 84. Fixing screw; 85. Fixing nut; 9. Elastic washer; 10. External interface. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-4 As shown, a waterproof, dustproof, and shockproof car horn includes a housing 1, within which a sound-generating device 2 is installed. A limiting groove 11 is provided on the front side of the housing 1, and a dustproof mesh 4, a first sealing gasket 5, a waterproof and sound-permeable membrane 6, and a second sealing gasket 7 are sequentially installed within the limiting groove 11. A front cover 3 is detachably connected to the front side of the housing 1. The outer circumferential surface of the front end of the housing 1 has an external thread 12, and the inner wall of the front cover 3 has an internal thread 32 that matches the external thread 12. The front cover 3 is connected to the housing 1 via a threaded connection. A sound-permeable hole 31 is provided at the top of the front cover 3, the diameter of which is smaller than the diameter of the dustproof mesh 4. The front cover 3 is located inside the edge of the sound-permeable hole 31 and abuts against the dustproof mesh 4. The second sealing gasket 7 abuts against the bottom surface of the limiting groove 11.

[0029] like Figures 1-5As shown, a rear cover 8 is connected to the rear side of the housing 1. An elastic washer 9 is fitted in the middle of the housing 1. One end of the elastic washer 9 abuts against the middle of the housing 1 or the front cover 3, and the other end abuts against the rear cover 8. Several snap-fit ​​strips 81 are evenly distributed around the rear cover 8. The snap-fit ​​strips 81 have snap-fit ​​protrusions 811 extending inward from the end near the housing 1. The outer circumferential surface of the housing 1 has snap-fit ​​grooves 13 that match the snap-fit ​​strips 81. The snap-fit ​​protrusions 811 can slide along the axial direction of the housing 1 within the snap-fit ​​grooves 13, and the side of the snap-fit ​​protrusions 811 away from the housing 1 can abut against the side of the snap-fit ​​grooves 13 near the rear cover 8. The end of the snap-fit ​​protrusions 811 near the housing 1 has a guide slope 8111. The snap-fit ​​grooves 13 extend towards the rear cover 8 and are connected to a shallow guide groove 131. The rear cover 8 has a disassembly groove 82 at the corresponding position of each snap-fit ​​strip 81. The elastic washer 9 is preferably made of silicone rubber or nitrile rubber, which has high temperature resistance, aging resistance and elastic recovery properties to adapt to long-term vibration in the vehicle environment.

[0030] like Figure 2 , 5 As shown, the rear side of the housing 1 is provided with an external interface 10 that is electrically connected to the sound-generating device 2, and the rear cover 8 is provided with a clearance hole 83 to facilitate the connection of the external interface 10 to the vehicle body interface. A fixing screw 84 is fixedly connected to the middle of the outer side of the rear cover 8, and a fixing nut 85 is threaded onto the fixing screw 84.

[0031] In the above embodiment, when the car horn is working, the sound is transmitted through the sound-permeable hole 31 of the front cover 3. The dustproof mesh 4 blocks dust, while the waterproof and sound-permeable membrane 6 prevents water from entering the housing while ensuring sound transmission. When the horn needs cleaning, simply unscrew the front cover 3 to clean the dustproof mesh 4, the waterproof and sound-permeable membrane 6, and the sound-generating device 2, extending the horn's service life. When vibrations occur during vehicle operation, the rear cover 8 slides within the snap-fit ​​groove 13 via the snap-fit ​​protrusion 811, and with the cushioning of the elastic washer 9, effectively reduces the impact of vibrations on the horn. The horn can be securely mounted on the vehicle body using the fixing screw 84 and fixing nut 85 on the rear cover 8. This car horn, through its simple structural design, achieves waterproof, dustproof, and shockproof functions, while also being easy to clean and maintain, reducing costs.

Claims

1. A waterproof, dustproof, and shockproof car horn, comprising a housing (1), wherein a sound-generating device (2) is installed inside the housing (1), characterized in that: The front side of the housing (1) is detachably connected to a front cover (3). Between the front cover (3) and the housing (1), a dustproof net (4), a first sealing gasket (5), a waterproof and sound-permeable membrane (6) and a second sealing gasket (7) are arranged sequentially from the outside to the inside. The top of the front cover (3) is provided with a sound-permeable hole (31) with a diameter smaller than that of the dustproof net (4). The front cover (3) is located on the inner edge of the sound-permeable hole (31) and can abut against the dustproof net (4). The second sealing gasket (7) can abut against the front side of the housing (1).

2. The waterproof, dustproof, and shockproof car horn according to claim 1, characterized in that: The front side of the housing (1) is provided with a limiting groove (11), and the dustproof net (4), the first sealing gasket (5), the waterproof and sound-permeable membrane (6) and the second sealing gasket (7) are all installed in the limiting groove (11).

3. A waterproof, dustproof, and shockproof car horn according to claim 2, characterized in that: The outer peripheral surface of the front end of the housing (1) is provided with an external thread (12), and the inner wall of the front cover (3) is provided with an internal thread (32) that matches the external thread (12).

4. A waterproof, dustproof, and shockproof car horn according to any one of claims 1-3, characterized in that: The rear side of the housing (1) is connected to a rear cover (8). An elastic washer (9) is fitted in the middle of the housing (1). One end of the elastic washer (9) can abut against the middle of the housing (1) or the front cover (3), and the other end can abut against the rear cover (8). A number of snap-fit ​​strips (81) are evenly distributed around the rear cover (8). The snap-fit ​​strip (81) extends inward from the end near the housing (1) and has a snap-fit ​​protrusion (811). The outer circumferential surface of the housing (1) is provided with a snap-fit ​​groove (13) that matches the snap-fit ​​strip (81). The snap-fit ​​protrusion (811) can slide along the axial direction of the housing (1) in the snap-fit ​​groove (13), and the side of the snap-fit ​​protrusion (811) away from the housing (1) can abut against the side of the snap-fit ​​groove (13) near the rear cover (8).

5. A waterproof, dustproof, and shockproof car horn according to claim 4, characterized in that: The snap-fit ​​protrusion (811) has a guide slope (8111) at the end near the housing (1), the snap-fit ​​groove (13) extends toward the rear cover (8) and is connected to a shallow guide groove (131), and the rear cover (8) has a disassembly groove (82) at the corresponding position of each snap-fit ​​strip (81).

6. A waterproof, dustproof, and shockproof car horn according to claim 5, characterized in that: The housing (1) has an external interface (10) that is electrically connected to the sound-generating device (2) on its rear side, and the rear cover (8) has a clearance hole (83) that facilitates the connection of the external interface (10) to the vehicle body interface.

7. A waterproof, dustproof, and shockproof car horn according to claim 6, characterized in that: A fixing screw (84) is fixedly connected to the middle of the outer side of the rear cover (8), and a fixing nut (85) is threaded onto the screw (84).

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