CN111988937A

CN111988937A - Communication equipment with noise reduction device

Info

Publication number: CN111988937A
Application number: CN202010843359.0A
Authority: CN
Inventors: 谢菊兰
Original assignee: Guangzhou Hongju Technology Co ltd
Current assignee: Guangzhou Hongju Technology Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2020-11-24

Abstract

The invention belongs to the technical field of communication equipment, and particularly relates to communication equipment with a noise reduction device, which comprises a protective shell, wherein an interphone is arranged in the protective shell, a universal transmitter is arranged on the front side of the interphone, a through hole matched with an interphone antenna is formed in the upper surface of the protective shell, the antenna of the interphone penetrates through the through hole and extends to the upper side of the protective shell, a rubber sleeve is fixedly connected to the left side surface of the protective shell, a jack is formed in the left side surface of the protective shell, a pressure rod is fixedly connected to the inner wall of the rubber sleeve, and the right end of the pressure rod penetrates through the jack and extends to the inside of the protective shell. The invention can concentrate the sound emitted by the user by utilizing the microphone, ensures that the sound can be completely transmitted to the universal microphone, can ensure that the antenna of the interphone extends out of the protective shell through the through hole, ensures the signal quality and solves the problem that the user cannot hear clearly when the external sound is large, thereby influencing the conversation quality.

Description

Communication equipment with noise reduction device

Technical Field

The invention relates to the technical field of communication equipment, in particular to communication equipment with a noise reduction device.

Background

The communication equipment is a general name of communication equipment arranged in a certain region for transmitting electric wave information, and is mainly divided into wired communication equipment and wireless communication equipment, the wired communication equipment mainly introduces equipment for solving serial port communication, professional bus type communication, communication of industrial Ethernet and conversion equipment between various communication protocols, the wireless communication equipment mainly comprises wireless AP (access point), wireless network bridge, wireless network card, wireless lightning arrester, antenna and the like, the communication equipment is a general name of communication equipment arranged in a certain region for transmitting electric wave information, such as radio station transmitting tower, television transmitting tower, transceiver, telephone switchboard, communication line, satellite communication equipment and the like, the wireless communication utilizes radio waves instead of cables to realize communication between the equipment, and the communication mode has the advantages of quick and simple installation and maintenance, no influence of on-site topographic environment, quick and simple installation and convenient operation, The cost is not high, and abundant products can meet different requirements of users on communication distance and communication speed.

Along with the development of science and technology, the places needing to use communication equipment are more and more, and communication equipment is comparatively miscellaneous, wherein people commonly use just wireless intercom, but present wireless intercom has some weak points when using, for example the intercom has external sound when using can cause the interference to the conversation, lead to the conversation quality of intercom relatively poor, and often will the user grasp with the hand when using, will lead to user's tired hand for a long time, and when external weather sudden change leads to raining, will cause communication equipment to intake the phenomenon emergence of damage.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides communication equipment with a noise reduction device, which solves the problems that external sound can interfere conversation, both parties using an interphone cannot hear clearly, so that the conversation quality is poor, and the hands of a user can be tired or paralyzed for a long time because the user often grasps the interphone by hands when the communication equipment is used, so that the interphone drops, the interphone is damaged, and the communication equipment is damaged by water entering when raining is caused by sudden change of external weather.

In order to achieve the purposes of improving the communication quality, relieving hand fatigue and supplying water to the communication equipment in rainy days, the invention provides the following technical scheme: a communication device with a noise reduction device comprises a protective shell, wherein an interphone is arranged inside the protective shell, a universal microphone is arranged on the front face of the interphone, a through hole matched with an interphone antenna is formed in the upper surface of the protective shell, the interphone antenna penetrates through the through hole and extends to the upper side of the protective shell, a rubber sleeve is fixedly connected to the left side face of the protective shell, a jack is formed in the left side face of the protective shell, a pressing rod is fixedly connected to the inner wall of the rubber sleeve, the right end of the pressing rod penetrates through the jack and extends to the inside of the protective shell, a sliding hole is formed in the front face of the protective shell, a sound collection cylinder matched with the sliding hole is arranged inside the sliding hole, a fixing ring is fixedly connected to the outer surface of the sound collection cylinder, a sealing ring is fixedly connected to the back face of the fixing ring, a first magnetic ring is fixedly connected to the back face of the, the first magnetic ring and the second magnetic ring are attracted.

The front of protective housing is fixed to be inlayed and is had a microphone, the microphone is located the dead ahead of general microphone, the below of protective housing is equipped with the bottom plate, the last fixed surface of bottom plate is connected with the cardboard, the top of cardboard extends to the inside of protective housing, cardboard and protective housing looks joint, the back fixedly connected with ring of protective housing, the draw-in groove has been seted up to the upper surface of protective housing, the inside joint of draw-in groove has the snap ring, the back fixedly connected with elastic cord of snap ring, the elastic cord is kept away from the one end of snap ring and the back fixed connection of protective housing.

As a preferred technical scheme of the invention, the outer surface of the interphone antenna is sleeved with a sealing ring, the bottom surface of the sealing ring is fixedly connected with the upper surface of the protective shell, and the interphone antenna is tightly matched with the sealing ring.

According to a preferable technical scheme of the invention, the left side of the rubber sleeve is provided with the anti-slip strips which are arranged at equal intervals, the right side surface of each anti-slip strip is fixedly connected with the left side surface of the rubber sleeve, the inner wall of the rubber sleeve is fixedly connected with two rubber balls, and the right side surface of each rubber ball is fixedly connected with the left side surface of the protective shell.

As a preferred technical scheme of the invention, the upper surface of the bottom plate is fixedly connected with a silica gel pad, and the upper surface of the silica gel pad is in contact with the bottom surface of the interphone.

According to a preferable technical scheme of the invention, a limiting plate is sleeved on the outer surface of the interphone, and the bottom surface of the limiting plate is fixedly connected with the upper surface of the bottom plate.

As a preferable technical scheme of the invention, a rubber pull ring is arranged below the bottom plate, and the upper surface of the rubber pull ring is fixedly connected with the bottom surface of the bottom plate.

As a preferable technical scheme of the invention, the front surface of the limit plate is provided with a sound transmission hole, and the sound transmission hole is positioned between the sound transmission barrel and the universal microphone.

As a preferable technical scheme of the invention, the inner wall of the protective shell is fixedly connected with a spongy cushion, and the front side of the spongy cushion is in contact with the back side of the interphone.

As a preferred technical scheme of the invention, two positioning blocks are arranged inside the protective shell, one ends of the two positioning blocks, which are close to each other, are fixedly connected with the outer surface of the sound collection cylinder, and the left end of the sound collection cylinder is fixedly connected with a flow guide ring.

As a preferred technical scheme of the invention, the ring is provided with a regulating device, the regulating device regulates the size of the ring according to the fingers of a user, and the regulating device comprises the following steps:

a1, judging whether the position of the ring on the finger of the user is in place;

wherein T is a judgment value, s is the distance between the finger ring and the finger root, and z is the finger length;

when the value of the judgment value T is a non-integer, performing the step A2, otherwise, not performing the step A2 until the value of the judgment value T is a non-integer;

a2, determining the ring size adjusting direction according to the following formula;

in the formula, y is the result of the ring adjustment direction, r is the diameter of the ring in the current state, and p is the number of finger circumference at one third of the distance from the finger root;

when the value of y is 1, the finger ring is larger, the size of the finger ring needs to be reduced, when the value of y is 0, the size of the finger ring is proper and does not need to be adjusted, and when the value of y is-1, the finger ring is smaller, the size of the finger ring needs to be enlarged;

a3, calculating the ring diameter adjustment according to the following formula;

in the above formula, l is the adjustment amount of the ring diameter, r is the diameter of the ring in the current state, and p is the number of the finger circumference at one third distance from the finger root, and is an empirical error coefficient.

Compared with the prior art, the invention provides communication equipment with a noise reduction device, which has the following beneficial effects:

1. this communications facilities with device of making an uproar falls, can accomodate the intercom through being provided with the protective housing, and utilize the cooperation of bottom plate and cardboard to seal the intercom and have the inside of protective housing, it is spacing to utilize limiting plate and silica gel pad to carry out the intercom, avoid the intercom to appear rocking, and utilize the water conservancy diversion ring can guide the rainwater when rainy day, and utilize the cooperation of first magnetic ring and second magnetic ring to make sealing washer and protective housing carry out in close contact with, avoid appearing rainwater infiltration to inside the protective housing, the realization is sealed the intercom, the intercom is intake when rainy day has been solved, lead to the problem that the damage appears in the intercom.

2. This communications facilities with device of making an uproar falls, can make the sound collection section of thick bamboo remove through being provided with the slide opening, avoid sound collection section of thick bamboo and protective housing to bump, the magnetic force that utilizes first magnetic ring and second magnetic ring can make sound collection section of thick bamboo and intercom carry out in close contact with, the sound that makes the intercom send can concentrate, make the sound of sending bigger, avoid the user to lead to the phenomenon emergence that can't hear clearly because of external sound, and utilize the microphone can concentrate the sound that the user sent, ensure that sound can be complete transmission to general microphone, can make the antenna of intercom stretch out the protective housing through the through-hole, ensure signal quality, the user can't hear clearly when having solved external sound great, lead to influencing speech quality's phenomenon to take place.

3. This communication equipment with device of making an uproar falls, can make user's finger insert to the ring inside through being provided with the ring, make the user relax when promptly this installation, and utilize elastic cord and snap ring can make user's finger insert inside the snap ring, so that the user's finger carries the device, realize liberation user's hand, hand fatigue when avoiding using, lead to the intercom to drop, the phenomenon that takes place to damage takes place, and can deposit the snap ring through the draw-in groove, avoid the snap ring to take place to rock when not using, lead to taking place the phenomenon of colliding with the protective housing.

4. Can separate bottom plate and protective housing fast through being equipped with bottom plate and rubber pull ring to take out the intercom fast and charge, and utilize the limiting plate to carry on spacingly to the intercom, avoid the intercom to take place the phenomenon of rocking to take place, can carry out when sealed to the jack through being equipped with the rubber sleeve, make the clamp plate can open the switch of intercom, utilize the rubber ball can make the rubber cover reset fast, so that use next time.

Drawings

FIG. 1 is a cross-sectional view of a front view of a structural protective shell of the present invention;

FIG. 2 is a cross-sectional view of a side view of the structural protective shell of the present invention;

FIG. 3 is a top view of the structural protective shell of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 5 is an enlarged view of the structure B in FIG. 2;

fig. 6 is an enlarged schematic view of the structure at C in fig. 2 according to the present invention.

In the figure: 1. a seal ring; 2. a through hole; 3. a protective shell; 4. a limiting plate; 5. a general microphone; 6. clamping a plate; 7. a base plate; 8. a rubber pull ring; 9. a seal ring; 10. an interphone; 11. elastic bands; 12. a ring; 13. a sponge cushion; 14. a snap ring; 15. a flow guide ring; 16. a card slot; 17. a slide hole; 18. a rubber sleeve; 19. anti-slip strips; 20. a jack; 21. a pressure lever; 22. a rubber ball; 23. a fixing ring; 24. a second magnetic ring; 25. positioning blocks; 26. a sound collection tube; 27. a first magnetic ring; 28. a microphone; 29. a sound transmission hole; 30. a silica gel pad.

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.

Example 1

Referring to fig. 1 to 6, a communication device with a noise reduction apparatus includes a protective case 3, an intercom 10 is disposed inside the protective case 3, a universal microphone 5 is disposed on a front surface of the intercom 10, the microphone is a microphone used in a communication system, and is generally classified into a universal microphone 5 and an anti-noise microphone, the universal microphone 5 is used in a general environment, and is classified into an active type and a passive type, the anti-noise microphone is used in a place with relatively large environmental noise, and is classified into an air conduction type and a contact type according to an operation principle, and can convert sound into voice current, so that the microphone is an acoustic-electric conversion device, the microphone is generally classified into two types, i.e., a linear microphone and a nonlinear microphone, and a microphone whose sensitivity does not vary according to a magnitude of sound pressure is referred to as a linear microphone, and vice versa is referred to a nonlinear microphone, in the conventional microphone, the carbon-refined microphone is a nonlinear microphone, the electromagnetic microphone, the moving coil microphone, the piezoelectric microphone and the electret microphone are linear microphones, the microphones have positive and negative poles, when in maintenance, the microphones can not output signals if the polarities are reversed, in addition, the microphones also need to provide bias voltage for the microphones when in work, otherwise, the fault phenomenon that the microphones can not be sent can also occur, the upper surface of the protective shell 3 is provided with a through hole 2 matched with an antenna of the interphone 10, the antenna of the interphone 10 penetrates through the through hole 2 and extends to the upper part of the protective shell 3, the left side surface of the protective shell 3 is fixedly connected with a rubber sleeve 18, the left side surface of the protective shell 3 is provided with a jack 20, the inner wall of the rubber sleeve 18 is fixedly connected with a pressure rod 21, the right end of the pressure rod 21 penetrates through the jack 20 and extends to the inside of the protective shell 3, the front surface of the protective shell 3 is provided with a sliding hole 17, the inside of the sliding hole 17 is provided with a sound collecting tube 26 matched with the sliding hole 17, the outer surface of sound collection cylinder 26 is fixedly connected with solid fixed ring 23, the back fixedly connected with sealing washer 9 of solid fixed ring 23, the back fixedly connected with first magnetic ring 27 of solid fixed ring 23, the front of protective housing 3 is fixed and is inlayed second magnetic ring 24, first magnetic ring 27 attracts with second magnetic ring 24 mutually.

Fixed the inlaying in front of protective housing 3 has a microphone 28, microphone 28 is located the dead ahead of general microphone 5, the below of protective housing 3 is equipped with bottom plate 7, the last fixed surface of bottom plate 7 is connected with cardboard 6, the top of cardboard 6 extends to the inside of protective housing 3, cardboard 6 and protective housing 3 joint mutually, the back fixedly connected with ring 12 of protective housing 3, draw-in groove 16 has been seted up to the upper surface of protective housing 3, the inside joint of draw-in groove 16 has snap ring 14, the back fixedly connected with elastic cord 11 of snap ring 14, the one end that snap ring 14 was kept away from to elastic cord 11 and the back fixed connection of protective housing 3.

In this embodiment: the interphone 10 can be covered by the protective shell 3, the sound emitted by the speaker can be concentrated by the sound transmission tube 28 after the interphone 10 is installed, so that the sound is transmitted to the universal microphone 5, the first magnetic ring 27 is in contact with the sound collection tube 26 through the fixing ring 23 by the aid of the mutual attraction of the first magnetic ring 27 and the second magnetic ring 24, the sound is concentrated, a user can listen and talk conveniently, the interphone 10 is sealed inside the protective shell 3 by the aid of the matching of the protective shell 3, the bottom plate 7 and the clamping plate 6, the interphone 10 is prevented from being damaged due to water entering the interphone 10, the interphone 10 can be conveniently carried by the aid of the finger ring 12, the clamping ring 14 and the elastic band 11, and hands of the user can be relieved.

Example 2

Referring to fig. 1-6, a further improvement is made on the basis of embodiment 1: the surface cover of intercom 10 antenna is equipped with sealing ring 1, the bottom surface of sealing ring 1 and the last fixed surface of protective housing 3 are connected, the antenna and the 1 tight fit of sealing ring of intercom 10, the left side of rubber sleeve 18 is equipped with antislip strip 19 that the equidistance was arranged, the right flank of every antislip strip 19 all with the left surface fixed connection of rubber sleeve 18, two rubber balls 22 of the inner wall fixed connection of rubber sleeve 18, the right flank of every rubber ball 22 all with the left surface fixed connection of protective housing 3.

In this embodiment, the antenna of the intercom 10 is sealed with the through hole 2 by the sealing ring 1, so as to increase the waterproof effect, the anti-slip strip 19 can be used to prevent the user from slipping when pressing the rubber sleeve 18, the pressing rod can press the switch 21 of the intercom 10, so as to start the intercom 10, and after the use is finished, the rubber ball 22 is used to quickly reset the rubber sleeve 18.

Example 3

Referring to fig. 1-6, a further improvement is made on the basis of embodiment 1: the upper surface fixedly connected with silica gel pad 30 of bottom plate 7, the upper surface of silica gel pad 30 contacts with the bottom surface of intercom 10, the surface cover of intercom 10 is equipped with limiting plate 4, the bottom surface of limiting plate 4 and the upper surface fixed connection of bottom plate 7, the below of bottom plate 7 is equipped with rubber pull ring 8, the upper surface of rubber pull ring 8 and the bottom surface fixed connection of bottom plate 7, sound transmission hole 29 has been seted up in the front of limiting plate 4, sound transmission hole 29 is located between a sound transmission section of thick bamboo 28 and the general microphone 5, the inner wall fixedly connected with foam-rubber cushion 13 of protective housing 3, the front of foam-rubber cushion 13 contacts with the back of intercom 10.

In this embodiment, can support intercom 10 through silica gel pad 30, and avoid intercom 10 to appear sliding from top to bottom, cause intercom 10 to appear wearing and tearing, utilize limiting plate 4 can be after intercom 10 puts into the inside of protective housing 3, spacing intercom 10, avoid intercom 10 to appear the swing, prevent that intercom 10 antenna from breaking, so that the phenomenon of unable received signal takes place, can avoid limiting plate 4 to block the sound of a microphone 28 transmission through seting up sound transmission hole 29, ensure that universal microphone 5 can receive information, can guide intercom 10 through foam-rubber pad 13, avoid intercom 10 putting into protective housing 3 and making the phenomenon of bumping take place.

Example 4

Referring to fig. 1-6, a further improvement is made on the basis of embodiment 1: the inside of protective housing 3 is equipped with two locating pieces 25, and the one end that two locating pieces 25 are close to each other all is connected with the external surface fixed of sound collection section of thick bamboo 26, and the left end fixedly connected with water conservancy diversion ring 15 of sound collection section of thick bamboo 26.

In this embodiment, can carry on spacingly to sound collection section of thick bamboo 26 through locating piece 25, avoid sound collection section of thick bamboo 26 from the inside roll-off of slide opening 17, utilize water conservancy diversion ring 15 can guide the rainwater when raining, avoid the rainwater to get into the inside of protective housing 3, prevent that the phenomenon of intercom 10 damage of intaking from taking place.

Example 5

A further improvement is made on the basis of the embodiment 1: the ring 12 is provided with a regulating device which regulates the size of the ring according to the fingers of a user, and the regulating device comprises the following steps:

In this embodiment, carry out size adjustment to ring 12 through regulation and control device, avoid user's finger to mismatch with the ring size and lead to the user to be strenuous and laboursome more when using, and the process of ring adjustment can automatic quick realization, and is convenient, avoids extravagant plenty of time to carry out artificial adjustment, in addition, the definite course of ring adjustment volume makes both having the gap between ring and the user's finger not to make a round trip not hard up with the help of experience error coefficient, increases user's comfort level.

The working principle and the using process of the invention are as follows: adjusting the channel and sound of the interphone 10, after the adjustment is finished, holding the protective shell 3 by hand, pulling the rubber pull ring 8 to enable the bottom plate 7 to drive the clamping plate 6 and the limiting plate 4 to move out of the protective shell 3, inserting the antenna of the interphone 10 into the protective shell 3 first, pulling the sound collection cylinder 26 to enable the sound collection cylinder 26 to extend out of the protective shell 3, enabling the antenna of the interphone 10 to penetrate through the through hole 2 and the sealing ring 1 and extend out of the sealing ring 1, enabling the top of the interphone 10 to be in contact with the inner top wall of the protective shell 3, holding the bottom plate 7 to enable the limiting plate 4 to be sleeved at the bottom of the interphone 10, then pushing the bottom plate 7 to move upwards, enabling the bottom plate 7 to push the clamping plate 6 to enter the inner part of the protective shell 3 and be clamped with the protective shell 3, lifting the interphone 10 through the silica gel pad 30, loosening the sound collection cylinder 26, enabling the sound collection cylinder 26 to reset through the, the sound collecting tube 26 is contacted with the sound producing end of the interphone 10, after the installation is finished, fingers penetrate through the ring 12 and the device is carried by utilizing the snap ring 14 and the elastic band 11, when the snap ring 14 is not used, the snap ring 14 can be clamped into the clamping groove 16, and the snap ring 14 is stored.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A communications facilities with device of making an uproar falls, includes protective housing (3), its characterized in that: an interphone (10) is arranged inside the protective shell (3), a universal microphone (5) is arranged on the front face of the interphone (10), a through hole (2) matched with an antenna of the interphone (10) is formed in the upper surface of the protective shell (3), the antenna of the interphone (10) penetrates through the through hole (2) and extends to the upper portion of the protective shell (3), a rubber sleeve (18) is fixedly connected to the left side face of the protective shell (3), a jack (20) is formed in the left side face of the protective shell (3), a pressing rod (21) is fixedly connected to the inner wall of the rubber sleeve (18), the right end of the pressing rod (21) penetrates through the jack (20) and extends to the inside of the protective shell (3), a sliding hole (17) is formed in the front face of the protective shell (3), a sound collecting barrel (26) matched with the sliding hole (17) is arranged inside the sliding hole (17), and a fixing ring (23) is fixedly connected to the outer surface of the sound collecting barrel (, the back of the fixing ring (23) is fixedly connected with a sealing ring (9), the back of the fixing ring (23) is fixedly connected with a first magnetic ring (27), the front of the protective shell (3) is fixedly embedded with a second magnetic ring (24), and the first magnetic ring (27) and the second magnetic ring (24) are attracted;

the front of protective housing (3) is fixed to be inlayed and is had a microphone (28), microphone (28) are located the dead ahead of general microphone (5), the below of protective housing (3) is equipped with bottom plate (7), the last fixed surface of bottom plate (7) is connected with cardboard (6), the top of cardboard (6) extends to the inside of protective housing (3), cardboard (6) and protective housing (3) looks joint, the back fixedly connected with ring (12) of protective housing (3), draw-in groove (16) have been seted up to the upper surface of protective housing (3), the inside joint of draw-in groove (16) has snap ring (14), the back fixedly connected with elastic cord (11) of snap ring (14), the one end that snap ring (14) were kept away from to elastic cord (11) and the back fixed connection of protective housing (3).

2. The communication device with noise reduction apparatus as claimed in claim 1, wherein: the outer surface cover of intercom (10) antenna is equipped with sealing ring (1), the bottom surface of sealing ring (1) and the upper surface fixed connection of protective housing (3), the antenna and the sealing ring (1) tight fit of intercom (10).

3. The communication device with noise reduction apparatus as claimed in claim 1, wherein: the left side of rubber sleeve (18) is equipped with antislip strip (19) that the equidistance was arranged, every the right flank of antislip strip (19) all with the left surface fixed connection of rubber sleeve (18), the inner wall fixed connection of rubber sleeve (18) has two rubber ball (22), every the right flank of rubber ball (22) all with the left surface fixed connection of protective housing (3).

4. The communication device with noise reduction apparatus as claimed in claim 1, wherein: the upper surface of bottom plate (7) is fixedly connected with silica gel pad (30), the upper surface of silica gel pad (30) contacts with the bottom surface of intercom (10).

5. The communication device with noise reduction apparatus as claimed in claim 1, wherein: the outer surface of the interphone (10) is sleeved with a limiting plate (4), and the bottom surface of the limiting plate (4) is fixedly connected with the upper surface of the bottom plate (7).

6. The communication device with noise reduction apparatus as claimed in claim 1, wherein: a rubber pull ring (8) is arranged below the bottom plate (7), and the upper surface of the rubber pull ring (8) is fixedly connected with the bottom surface of the bottom plate (7).

7. The communication device with noise reduction apparatus as claimed in claim 5, wherein: the front surface of the limiting plate (4) is provided with a sound transmission hole (29), and the sound transmission hole (29) is positioned between the sound transmission tube (28) and the universal microphone (5).

8. The communication device with noise reduction apparatus as claimed in claim 1, wherein: the inner wall of the protective shell (3) is fixedly connected with a sponge mat (13), and the front face of the sponge mat (13) is in contact with the back face of the interphone (10).

9. The communication device with noise reduction apparatus as claimed in claim 1, wherein: the inside of protective housing (3) is equipped with two locating pieces (25), two the one end that locating piece (25) are close to each other all is connected with the external fixed surface of sound collection section of thick bamboo (26), the left end fixedly connected with water conservancy diversion ring (15) of sound collection section of thick bamboo (26).

10. The communication device with noise reduction apparatus as claimed in claim 1, wherein: the ring (12) is provided with a regulating device, the regulating device regulates the size of the ring according to the fingers of a user, and the regulating device comprises the following steps: