Windproof noise reduction device for tunnel talkback
Technical Field
The invention relates to the technical field of noise reduction devices, in particular to a windproof noise reduction device for tunnel talkback.
Background
The interphone is a two-way mobile communication tool, can be used for communication without any network support, does not generate telephone charge, and is suitable for occasions with relatively fixed and frequent communication. The interphone currently has three main categories, namely an analog interphone, a digital interphone and an IP interphone.
The prior art has the following defects: in an actually installed talkback system, a microphone is exposed on a talkback plane, although the microphone can be subjected to noise reduction treatment by adopting a rubber sleeve and isolation cotton in actual installation, the microphone can pick up very large wind noise due to the influence of cross wind, normal conversation sound on site cannot be clearly picked up in the actual talkback process, a remote monitoring service center cannot normally communicate with the site, the performance of the microphone can be influenced due to the long-term exposure of the microphone, the microphone can directly fail under severe conditions, and the failure of the part can enable an emergency telephone system to be laid out.
Therefore, the invention is necessary to invent a wind-proof noise reduction device for tunnel talkback.
Disclosure of Invention
Aiming at the problems in the prior art, the technical problems to be solved by the invention are as follows: the conversation sound can not be clearly picked up, a remote monitoring service center can not normally communicate with the site, the performance of the microphone exposed outside for a long time can be influenced, the microphone can directly fail under severe conditions, and the failure of the part can enable an emergency telephone system to be a decoration.
In order to solve the technical problems, the invention adopts the following technical scheme:
a windproof and noise-reducing device for tunnel talkback comprises an interphone and a microphone, wherein the microphone is fixedly arranged on the front side of the interphone, a shell is fixedly arranged on the front side of the interphone, a space formed between the interphone and the shell is a cavity, the microphone is arranged in the cavity, a noise-reducing mechanism is fixedly arranged in the cavity, and the noise-reducing mechanism penetrates through the interphone and extends to the front side of the interphone;
the noise reduction mechanism comprises a plurality of frame bodies, the frame bodies are fixedly arranged on the front side of the shell, an opening is formed in the bottom of the frame body, the opening is multiple, a pipe body is arranged at the bottom of the frame body, the bottom of the pipe body penetrates through the shell and extends into the cavity, the outer wall of the pipe body is fixedly connected with the inner wall of the shell, the opening is communicated with the interior of the cavity through the pipe body, a windproof sponge is fixedly arranged inside the shell, the windproof sponge is fixedly arranged on the outer sides of the plurality of pipe bodies, a microphone is arranged at the bottom of the windproof sponge, and a portable component is arranged on.
When using, the casing is including the microphone protection, avoid external complex factor to influence the microphone life-span, later when the strong wind blows the casing, because the casing outside sets up to the inclined plane, the resistance that receives when the strong wind blows just also is little, the noise that its produced is weakened, prevent that the sound of user's speaking from being doped by the noise, sound is clearly picked up when guaranteeing normal conversation, it gets into the cavity through the body to have the strong wind during to hold, prevent that the sponge from stopping the strong wind this moment, prevent that the strong wind from getting into the cavity, stop the noise and produce from the cavity is inside, later the user can speak to the microphone, information transfer can normally go on, microphone life is prolonged at intangible room.
Preferably, the casing is internally fixed with a metal mesh, the metal mesh is arranged on one side of the microphone, the bottom of the metal mesh and the bottom of the casing are positioned on the same horizontal plane, and the metal mesh is arranged to prevent mosquitoes from entering the cavity.
Preferably, the shell and the pipe body are both made of metal materials, and the shell and the pipe body made of the metal materials are high in hardness, low in deformation rate and long in service life.
Preferably, the outer side of the shell is processed into an inclined plane, and the design of the inclined plane can reduce the flowing resistance of wind and weaken the noise.
Preferably, a plurality of the openings are symmetrical about a horizontal center line of the housing, and the openings are arranged to transmit sound into the pipe body.
Compared with the prior art, the invention has at least the following advantages:
1. the microphone is protected by the shell, then the outer side of the shell is provided with the inclined plane, so that the resistance force when strong wind blows is small, the generated noise is weakened, the strong wind enters the cavity through the pipe body in the period, at the moment, the windproof sponge blocks the strong wind, the strong wind is prevented from entering the cavity, the noise is prevented from being generated from the inner part of the cavity, then a user can speak to the microphone, the information transmission can be normally carried out, and the service life of the microphone is prolonged invisibly;
2. the casing is inside to be fixed and to be equipped with the metal mesh, the metal mesh is established in microphone one side, the metal mesh bottom is located same horizontal plane with the casing bottom, sets up the metal mesh and can prevent that the mosquito from getting into in the cavity to further realize waterproof, dustproof.
Drawings
FIG. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is a left side view of the overall structure provided by the present invention;
FIG. 3 is an elevational view of the overall structure provided by the present invention;
FIG. 4 is a schematic representation provided by the present invention;
FIG. 5 is a left side view of the overall structure of embodiment 2 provided by the present invention;
in the figure: 1. an interphone; 2. a housing; 3. a cavity; 4. a microphone; 5. a frame body; 6. an opening; 7. a pipe body; 8. a windproof sponge; 9. a metal mesh.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Embodiment 1, referring to fig. 1 to 4, the windproof and noise-reducing device for tunnel intercom provided by the invention includes an intercom 1 and a microphone 4, the microphone 4 is fixedly arranged on the front side of the intercom 1, the front side of the intercom 1 is fixedly provided with a housing 2, a space formed between the intercom 1 and the housing 2 is a cavity 3, the microphone 4 is arranged inside the cavity 3, a noise-reducing mechanism is fixedly arranged inside the cavity 3, and the noise-reducing mechanism penetrates through the intercom 1 and extends to the front side of the intercom 1;
it includes a plurality of frameworks 5, and is a plurality of the framework 5 is all fixed to be established in 2 front sides of casing, opening 6 has been seted up to framework 5 bottom, and is a plurality of 5 bottoms of framework all are equipped with body 7, inside body 7 bottom passed casing 2 and extended to cavity 3, body 7 outer wall and 2 inner wall fixed connection of casing, opening 6 passes through body 7 and 3 inside intercommunications of cavity, 2 inside fixed windproof sponge 8 that are equipped with of casing, windproof sponge 8 fixed cover is established in a plurality of body 7 outsides, microphone 4 is established in windproof sponge 8 bottoms.
Further, casing 2 is inside to be fixed and to be equipped with metal mesh 9, metal mesh 9 is established in microphone 4 one side, metal mesh 9 bottom and casing 2 bottom are located same horizontal plane, set up metal mesh 9 and can prevent that the mosquito from getting into in the cavity 3.
Further, the shell 2 and the pipe body 7 are both made of metal materials, and the shell 2 and the pipe body 7 made of metal materials are high in hardness, low in deformation rate and long in service life.
Furthermore, the outer side of the shell 2 is processed into an inclined plane, and the design of the inclined plane can reduce the flowing resistance of wind, so that the noise is weakened.
Further, a plurality of the openings 6 are symmetrical with respect to a horizontal center line of the housing 2, and the openings 6 are provided to transmit sound into the pipe body 7.
The using process of the invention is as follows: when the microphone is used, the shell 2 protects the microphone 4, the condition that the service life of the microphone 4 is influenced by external complex factors is avoided, then when strong wind blows through the shell 2, the outer side of the shell 2 is arranged to be an inclined plane, so that the resistance force when the strong wind blows is small, the noise generated by the strong wind is weakened, the voice of a user is prevented from being doped by the noise, the voice is clearly picked up when normal conversation is ensured, the strong wind enters the cavity 3 through the pipe body 7 during the period, the wind-proof sponge 8 blocks the strong wind at the moment, the strong wind is prevented from entering the cavity 3, the noise is prevented from being generated from the inner part of the cavity 3, then the user can speak to the microphone, the information transmission can be normally carried out, and the service life of the microphone 4 is prolonged in an invisible state.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.