CN112020250A

CN112020250A - Communication equipment with strong dust resistance and use method thereof

Info

Publication number: CN112020250A
Application number: CN202010713490.5A
Authority: CN
Inventors: 张云辉
Original assignee: Nanjing Yuyi Communication Technology Co Ltd
Current assignee: Nanjing Yuyi Communication Technology Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-12-01
Also published as: WO2022016966A1

Abstract

The invention discloses communication equipment with strong dust resistance and a using method thereof, relates to the technical field of communication equipment, and aims to solve the problem of high dust resistance of the existing communication equipment under the condition of normal use. The utility model discloses a communication equipment, including shell, first dust guard, sound inlet, second dust guard, touch switch, second dust guard, first mounting bracket, second dust guard, touch switch, the top of shell front end is provided with the sound outlet, first dust guard is all installed to the rear end in sound outlet, first dust guard is installed to the both sides of first dust guard all fixed being provided with first mounting bracket, first dust guard and sound outlet fixed connection, the below of shell front end is provided with the sound inlet, the second dust guard is all installed to the rear end in sound inlet, the external fixation of second dust guard is provided with the second mounting bracket, the second dust guard is installed to the lower extreme of second dust guard, touch switch installs the second dust guard in the inside one side of shell, and it has realized improving.

Description

Communication equipment with strong dust resistance and use method thereof

Technical Field

The invention relates to the technical field of communication equipment, in particular to communication equipment with strong dust resistance and a using method thereof.

Background

The wireless communication device is a device for performing long-distance transmission communication among a plurality of nodes without propagation through a conductor or a cable, and can perform wireless communication by using a radio, a radio and the like. Wireless communication includes a variety of stationary, mobile, and portable applications such as two-way radios, cell phones, personal digital assistants, and wireless networks. Other examples of wireless communication include GPS, garage door remote control, wireless mouse, etc., and most wireless communication technologies use radio, including Wi-fi, which is only several meters away, and also include deep space networks, which communicate with the seafarer number 1, and which are over several million kilometers away. However, some wireless communication technologies do not use radio, but use other electromagnetic wave wireless technologies, such as light, magnetic field, electric field, etc.

In the use process of the communication equipment, particularly in a severe environment or a workshop with large dust, no matter in the standing process or the audio communication process, fine particles in the air can be attached to the sound raising hole and the microphone sound inlet of the communication equipment, and a dust screen and a dust shell can be arranged outside the sound raising hole and the microphone sound inlet of the common communication equipment to reduce the dust entering.

However, as the accumulation amount of the dust screen on the existing communication equipment increases, on one hand, the dust screen gradually loses the protection effect, so that particles penetrate into the communication equipment and are attached to internal elements to cause the reduction of the service life, on the other hand, when the dust screen is completely accumulated outside, the transmission and the entering of sound are affected, the protective shell needs to be manually opened and closed by a user, the protective shell is often forgotten to be closed due to the influence of use habits, the protection effect is lost, and therefore the existing requirements are not met, and the communication equipment with strong dust resistance and the using method thereof are provided.

Disclosure of Invention

The present invention provides a communication device with strong dust-proof performance and a method for using the same, so as to solve the problem of how to ensure that the communication device has high dust-proof performance under the condition of normal use in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a communication device with strong dust resistance and a using method thereof comprise a shell, wherein a plurality of sound-raising holes are arranged above the front end of the shell, a first dust guard is arranged at the rear end of each sound-raising hole, first mounting frames are fixedly arranged on two sides of each first dust guard and are in sliding connection with the front end of the shell, a first dust guard is arranged at the lower end of each first dust guard and is fixedly connected with the sound-raising holes, the first dust guard covers the first dust guard, sound inlet holes are formed in the lower portion of the front end of the shell, three sound inlet holes are formed in the front end of the shell, a second dust guard is arranged at the rear end of each sound inlet hole, a second mounting frame is fixedly arranged outside the second dust guard and is in sliding connection with the front end of the shell, a second dust guard is arranged at the lower end of the second dust guard and is fixedly connected with the sound inlet holes, a touch switch is installed on one side of the shell, and a second dustproof mechanism is installed on one side of the touch switch located inside the shell, so that the dustproof performance is improved under the condition that the communication equipment is ensured to be normally used.

In a further embodiment, a first dustproof mechanism is installed behind the first mounting frame, a screw is installed inside the first dustproof mechanism, two ends of the screw are rotatably connected with the first dustproof mechanism through bearings, two sliding blocks are installed outside the screw and are matched with the screw, the sliding blocks are fixedly connected with the first mounting frame, the first mounting frame is located at the front end of the sliding blocks, a driven gear is fixedly welded at one end of the screw, stepping motors are respectively installed outside the first dustproof mechanism and are fixed to the shell through screws, a driving gear is fixedly arranged on an output shaft of each stepping motor, a transmission gear shaft is installed between each driving gear and each driven gear, two ends of each transmission gear shaft are respectively meshed with the driving gear and the driven gear, and the transmission gear shaft is rotatably connected with the first dustproof mechanism through bearings, the driving gear through step motor output shaft one end drives the transmission gear axle, makes driven gear drive screw rod rotate under the meshing transmission effect, can make first dust guard slide at first dust screen front end, realizes dustproof the regulation.

In a further embodiment, the touch switch is connected with the housing in a sliding manner, one end of the touch switch extends into the box housing, a guide rail is fixedly arranged at the upper end inside the housing, the upper end of the second dustproof mechanism is connected with the guide rail in a sliding manner, a bottom frame is fixedly arranged on one side of the lower end of the second dustproof mechanism, the bottom frame is fixedly connected with a second mounting frame, the second mounting frame is arranged at the front end of the bottom frame, the transverse movement of the second dustproof plate at the front end of the second dustproof net can be realized through the touch switch, the synchronous operation with the audio transmission process is realized, and the practicability is improved.

In a further embodiment, a sleeve is fixedly arranged between the shell and the underframe, a telescopic rod is arranged inside the sleeve, one end of the telescopic rod extends to the outside of the sleeve, the telescopic rod is in sliding connection with the sleeve, one end of the telescopic rod, far away from the sleeve, is fixedly connected with the underframe, a spring is fixedly arranged between the telescopic rod and the sleeve, and the spring can assist the touch switch to rebound.

In a further embodiment, the backshell is installed to the rear end of shell, and the backshell passes through the screw fixation with the shell, the rear end of shell is fixed and is provided with the heat-conducting plate, the rear end of heat-conducting plate is fixed and is provided with radiating fin, and radiating fin is provided with a plurality of, and radiating fin distributes in proper order, the equal fixed mounting in upper and lower end of backshell inside has radiator fan, under heat-conducting plate and radiating fin's cooperation, can improve the heat conductivility to the component, and radiator fan then can realize thermal quick discharge.

In a further embodiment, the rear end of the heat dissipation fan is provided with a third dust prevention net, the third dust prevention net is fixedly connected with the rear shell, and the third dust prevention net can avoid dust entering in the heat dissipation process.

In a further embodiment, a loudspeaker is installed below the first dustproof net, a communication module is installed below the loudspeaker, the communication module and the shell are fixed through screws, a microphone is installed below the second dustproof net, the loudspeaker is used for playing external audio, and the microphone is used for transmitting the audio of a user.

In a further embodiment, a signal antenna, a frequency modulation knob and a volume knob are respectively and fixedly mounted at the upper end of the housing, the signal antenna is used for receiving audio signals, the frequency modulation knob is used for adjusting frequency, and the volume knob is used for adjusting volume.

The use method of the communication equipment with strong dust resistance comprises the following steps:

when the communication equipment is not started, the first dustproof plate completely covers the outer part of the first dustproof net so as to form protection of the sound-raising holes, and the second dustproof plate completely covers the outer part of the second dustproof net so as to form protection of the sound-inlet holes;

step two, when a user uses the communication equipment, the two stepping motors are driven to work when the user is started integrally, a driving gear on an output shaft of each stepping motor drives a driven gear on each screw rod to rotate under the meshing action through a transmission gear shaft, so that the two screw rods synchronously rotate, rotary motion is converted into linear motion under the action of friction force, a sliding block drives a first mounting frame to move upwards, a first dustproof plate is gradually separated from a first dustproof net, a sound raising hole is exposed to the outside, and the user can know voice messages transmitted by a loudspeaker at the moment;

step three, when a user prepares to send a voice message, the touch switch is pressed to enable the second dustproof mechanism to contract inwards, the second mounting frame is located at the front end of the bottom frame and located inside the front end shell and connected with the front end shell in a sliding mode, and along with the pressing of the touch switch, the second dustproof mechanism pushes the bottom frame to enable the second dustproof plate inside the second mounting frame to move towards one side and gradually expose the sound inlet hole provided with the second dustproof net to the outside, so that the user can directly conduct voice transmission through the sound inlet hole;

and step four, when the communication equipment is closed after the use, the stepping motor is driven to rotate reversely by the power supply of the communication module, the sliding block drives the first mounting frame to move downwards, the first dustproof plate covers the upper part of the first dustproof net again, the sound-raising hole is covered, after a user releases the touch switch, the extrusion force of the second dustproof mechanism to the bottom frame disappears, meanwhile, a sleeve provided with a telescopic rod is arranged on the other side of the bottom frame, a spring between the first dustproof plate and the sleeve pushes the bottom frame under the elastic reset action, the bottom frame is driven to move towards the other side, and then the second dustproof plate covers the upper end of the second dustproof net again.

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

1. when a user uses the communication equipment, because the internal stepping motor is electrically connected with the communication module, the integral starting and the driving of the two stepping motors are simultaneously carried out, a driving gear on an output shaft of the stepping motor drives a driven gear on the screw to rotate under the meshing action of a transmission gear shaft, so that the two screws synchronously rotate, the sliding blocks outside the screws are matched with the screws, and the rotary motion is converted into linear motion under the action of friction force, make the slider drive first mounting bracket rebound, make first dust guard separate with first dust screen gradually, expose the raise voice hole in the outside, the user can know the voice message of speaker transmission this moment, this in-process, first dust screen can realize blockking of particulate matter completely, because the time is shorter, dustproof pressure is also less, when using when accomplishing the back and close communication equipment, through communication module power drive step motor antiport, make the slider drive first mounting bracket rebound, thereby first dust guard covers the top of first dust screen once more, realize the cover to the raise voice hole, dustproof effect has been improved.

2. The invention installs the second dustproof mechanism on one side of the inner part of the shell, the second dustproof mechanism is fixedly connected with the touch switch on one side of the outer part of the shell, because the touch switch is designed to be resilient, the second dustproof mechanism can be contracted inwards when the touch switch is pressed, the touch switch is a switch for starting the transmission of a microphone, when a user prepares to send a voice message, the touch switch is pressed to ensure that the second dustproof mechanism is contracted inwards, one end of the second dustproof mechanism is positioned in a guide rail at the upper end of the inner part of the shell, the other end is provided with a bottom frame provided with a second mounting frame, on one hand, the second mounting frame is positioned at the front end of the bottom frame, the second mounting frame is positioned in the shell at the front end and is connected with the shell in a sliding way, along with the pressing of the touch switch, the second dustproof mechanism pushes the bottom frame to ensure that a second dustproof, the sound inlet hole that will be equipped with the second dust screen gradually exposes in the outside, thereby the user can directly carry out speech transmission through sound inlet hole, the second dust screen can play dirt-proof effect temporarily, after the user unclamped touch switch, the second dust screen disappears to the extrusion force of chassis, the sleeve that is equipped with the telescopic link is set up to the opposite side at the chassis simultaneously, spring between the two promotes the chassis under the elasticity reset action, make it move towards the opposite side, so the second dust screen covers the upper end of second dust screen once more, realize automatic closure with simple structure, through mutually supporting of first dust screen mechanism and second dust screen, improve dustproof performance under the condition of ensureing communication equipment normal use.

3. The invention has the advantages that the rear shell is arranged at the rear end of the shell, the rear shell and the shell are fixed by screws, the disassembly and the assembly are convenient, because the whole proposal aims at dust prevention, the shell is designed to be closed except the sound-raising hole and the sound-inlet hole in order to achieve the dust prevention effect, the heat dissipation problem caused by the closing is realized through the rear shell, the heat conducting plate is arranged at the rear end of the shell, the communication module and the power supply module are both arranged on the heat conducting plate, a plurality of heat radiating fins distributed in sequence are arranged outside the heat conducting plate, under the action of heat conduction, the radiating fins can quickly conduct the heat absorbed by the heat conducting plate to the outside, two small-sized heat dissipation fans are arranged in the rear shell, so that heat conducted by the heat dissipation fins can be quickly discharged, thereby ensure inside timely heat dissipation, the installation of backshell covers radiating fin, reduces the uncomfortable and scalding problem of feeling that the arch brought.

Drawings

FIG. 1 is an overall elevational view of the present invention;

FIG. 2 is an overall rear view of the present invention;

FIG. 3 is a front view of the internal structure of the present invention;

FIG. 4 is a partial enlarged view of area A of the present invention;

fig. 5 is a side view of the internal structure of the present invention.

In the figure: 1. a housing; 2. a signal antenna; 3. a frequency modulation knob; 4. a volume knob; 5. a sound-raising hole; 6. a first dust-proof plate; 7. a first dust screen; 8. a touch switch; 9. a sound inlet hole; 10. a second dust-proof plate; 11. a second dust screen; 12. a rear housing; 13. a first dust-proof mechanism; 14. a screw; 15. a first mounting bracket; 16. a second dust-proof mechanism; 17. a guide rail; 18. a chassis; 19. a second mounting bracket; 20. a sleeve; 21. a telescopic rod; 22. a spring; 23. a stepping motor; 24. a driving gear; 25. a drive gear shaft; 26. a driven gear; 27. a slider; 28. a speaker; 29. a microphone; 30. a communication module; 31. a heat conducting plate; 32. a heat dissipating fin; 33. a heat radiation fan; 34. and a third dust prevention net.

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.

Referring to fig. 1-5, an embodiment of the present invention is shown: a communication device with strong dust resistance and a using method thereof comprise a shell 1, wherein a plurality of sound-emitting holes 5 are arranged above the front end of the shell 1, a first dust guard 6 is arranged at the rear end of each sound-emitting hole 5, first mounting frames 15 are fixedly arranged on two sides of each first dust guard 6, the first mounting frames 15 are slidably connected with the front end of the shell 1, a first dust guard 7 is arranged at the lower end of each first dust guard 6, the first dust guard 7 is fixedly connected with the sound-emitting holes 5, the first dust guard 6 covers the first dust guard 7, sound inlet holes 9 are arranged below the front end of the shell 1, three sound inlet holes 9 are arranged, second dust guards 10 are arranged at the rear ends of the sound inlet holes 9, a second mounting frame 19 is fixedly arranged outside the second dust guards 10, the second mounting frames 19 are slidably connected with the front end of the shell 1, and a second dust guard 11 is arranged at the lower end of the second dust guards 10, and the second dustproof net 11 is fixedly connected with the sound inlet 9, one side of the shell 1 is provided with the touch switch 8, and one side of the touch switch 8 positioned in the shell 1 is provided with the second dustproof mechanism 16, so that the dustproof performance is improved under the condition of ensuring the normal use of the communication equipment.

Further, a first dust-proof mechanism 13 is installed behind the first installation frame 15, screw rods 14 are installed inside the first dust-proof mechanism 13, both ends of each screw rod 14 are rotatably connected with the first dust-proof mechanism 13 through bearings, sliders 27 are installed outside the screw rods 14, two sliders 27 are installed, the sliders 27 are matched with the screw rods 14, the sliders 27 are fixedly connected with the first installation frame 15, the first installation frame 15 is located at the front end of each slider 27, a driven gear 26 is fixedly welded at one end of each screw rod 14, stepping motors 23 are installed outside the first dust-proof mechanism 13, the stepping motors 23 are fixed with the shell 1 through screws, a driving gear 24 is fixedly arranged on an output shaft of each stepping motor 23, a transmission gear shaft 25 is installed between the driving gear 24 and the driven gear 26, both ends of the transmission gear shaft 25 are respectively meshed with the driving gear 24 and the driven gear 26, and the transmission gear shaft 25 is rotatably connected with the first dustproof mechanism 13 through a bearing, because the internal stepping motor 23 is electrically connected with the communication module 30, the two stepping motors 23 are driven to work when the whole is started, the driving gear 24 on the output shaft of the stepping motor 23 drives the driven gear 26 on the screw 14 to rotate under the meshing action through the transmission gear shaft 25, so that the two screws 14 synchronously rotate, the slide block 27 outside the screw 14 is matched with the screw 14, the rotary motion is converted into the linear motion under the action of friction force, and the slide block 27 drives the first mounting frame 15 to move upwards.

Further, the touch switch 8 is slidably connected to the housing 1, and one end of the touch switch 8 extends into the box housing 1, the upper end inside the housing 1 is fixedly provided with a guide rail 17, the upper end of the second dust-proof mechanism 16 is slidably connected to the guide rail 17, one side of the lower end of the second dust-proof mechanism 16 is fixedly provided with a bottom frame 18, the bottom frame 18 is fixedly connected to a second mounting frame 19, the second mounting frame 19 is located at the front end of the bottom frame 18, the second dust-proof mechanism 16 is fixedly connected to the touch switch 8 on one side outside the housing 1, because the touch switch 8 is designed to be resilient, when the touch switch 8 is pressed, the second dust-proof mechanism 16 is also retracted inward, and the touch switch 8 is a switch for turning on the transmission of the microphone 29.

Further, a sleeve 20 is fixedly arranged between the shell 1 and the underframe 18, an expansion rod 21 is arranged inside the sleeve 20, one end of the expansion rod 21 extends to the outside of the sleeve 20, the expansion rod 21 is slidably connected with the sleeve 20, one end of the expansion rod 21, which is far away from the sleeve 20, is fixedly connected with the underframe 18, a spring 22 is fixedly arranged between the expansion rod 21 and the sleeve 20, the spring 22 between the expansion rod 21 and the sleeve 20 pushes the underframe 18 under the elastic resetting effect, so that the expansion rod moves towards the other side, and then the second dust-proof plate 10 covers the upper end of the second dust-proof net 11 again, so that the automatic closing is realized through a simple structure.

Further, a rear shell 12 is installed at the rear end of the housing 1, the rear shell 12 and the housing 1 are fixed by screws, a heat conducting plate 31 is fixedly installed at the rear end of the housing 1, heat dissipating fins 32 are fixedly installed at the rear end of the heat conducting plate 31, a plurality of heat dissipating fins 32 are provided, the heat dissipating fins 32 are distributed in sequence, heat dissipating fans 33 are fixedly installed at the upper and lower ends of the interior of the rear shell 12, since the whole scheme is dustproof, the housing is designed to be closed except for the sound emitting holes 5 and the sound inlet holes 9, so that the heat dissipation problem caused by the closing is realized by the rear shell 12, the communication module 30 and the power module are installed on the heat conducting plate 31 by arranging the heat conducting plate 31 at the rear end of the housing 1, the heat dissipating fins 32 distributed in sequence are provided outside the heat conducting plate 31, and the heat absorbed by the heat conducting plate 31 can be rapidly conducted to the outside by, through being provided with two small-size radiator fan 33 in the backshell 12, can discharge the heat that radiating fin 32 conduction was derived fast to ensure inside timely heat dissipation, the installation of backshell 12 covers radiating fin 32, reduces the protruding uncomfortable and scalding problem of feeling that brings.

Further, the rear end of the heat dissipation fan 33 is provided with a third dust screen 34, and the third dust screen 34 is fixedly connected with the rear case 12.

Further, a speaker 28 is installed below the first dust screen 7, a communication module 30 is installed below the speaker 28, the communication module 30 and the housing 1 are fixed by screws, and a microphone 29 is installed below the second dust screen 11.

Further, the upper end of the casing 1 is fixedly provided with a signal antenna 2, a frequency modulation knob 3 and a volume knob 4 respectively.

step one, when the communication equipment is not started, the first dustproof plate 6 completely covers the outside of the first dustproof net 7, so that the protection of the sound-raising holes 5 is formed, and the second dustproof plate 10 completely covers the outside of the second dustproof net 11, so that the protection of the sound-inlet holes 9 is formed;

step two, when a user uses the communication equipment, the two stepping motors 23 are driven to work when the user is integrally started, the driving gear 24 on the output shafts of the stepping motors 23 drives the driven gear 26 on the screw rods 14 to rotate under the meshing action through the transmission gear shaft 25, so that the two screw rods 14 synchronously rotate, the rotary motion is converted into linear motion under the action of friction force, the sliding block 27 drives the first mounting frame 15 to move upwards, the first dust guard 6 is gradually separated from the first dust guard 7, the sound raising holes 5 are exposed to the outside, and the user can know the voice message transmitted by the loudspeaker 28 at the moment;

step three, when a user prepares to send a voice message, the touch switch 8 is pressed to enable the second dustproof mechanism 16 to contract inwards, the second mounting frame 19 is located at the front end of the bottom frame 18, the second mounting frame 19 is located inside the front end shell and is in sliding connection with the front end shell, along with the pressing of the touch switch 8, the second dustproof mechanism 16 pushes the bottom frame 18 to enable the second dustproof plate 10 inside the second mounting frame 19 to move towards one side, the sound inlet hole 9 provided with the second dustproof net 11 is gradually exposed to the outside, and therefore the user can directly conduct voice transmission through the sound inlet hole 9;

step four, when the communication equipment is closed after use, the power supply of the communication module 30 drives the stepping motor 23 to rotate reversely, so that the sliding block 27 drives the first mounting frame 15 to move downwards, the first dustproof plate 6 covers the upper part of the first dustproof net 7 again, the covering of the sound-raising hole 5 is realized, when a user releases the touch switch 8, the extrusion force of the second dustproof mechanism 16 to the bottom frame 18 disappears, meanwhile, the sleeve 20 provided with the telescopic rod 21 is arranged on the other side of the bottom frame 18, the spring 22 between the two pushes the bottom frame 18 under the elastic reset action, the bottom frame 18 moves towards the other side, and then the second dustproof plate 10 covers the upper end of the second dustproof net 11 again.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a communications facilities that dustproofness is strong, includes shell (1), its characterized in that: the loudspeaker is characterized in that a plurality of loudspeaker holes (5) are formed in the upper portion of the front end of the shell (1), first dust guard plates (6) are installed at the rear ends of the loudspeaker holes (5), first mounting frames (15) are fixedly arranged on two sides of each first dust guard plate (6), the first mounting frames (15) are slidably connected with the front end of the shell (1), first dust guard nets (7) are installed at the lower ends of the first dust guard plates (6), the first dust guard nets (7) are fixedly connected with the loudspeaker holes (5), the first dust guard plates (6) cover the first dust guard nets (7), sound inlet holes (9) are formed in the lower portion of the front end of the shell (1), three sound inlet holes (9) are formed in the rear end of the sound inlet holes (9), second dust guard plates (10) are installed at the rear ends of the sound inlet holes (9), and second mounting frames (19) are fixedly arranged on the outer portions of the second dust guard plates (10), and the front end sliding connection of second mounting bracket (19) and shell (1), second dust screen (11) are installed to the lower extreme of second dust guard (10), and second dust screen (11) and sound inlet hole (9) fixed connection, touch switch (8) are installed to one side of shell (1), touch switch (8) are located the inside one side of shell (1) and install second dustproof mechanism (16).

2. The communication device of claim 1, wherein the communication device further comprises: first dustproof mechanism (13) is installed at the rear of first mounting bracket (15), screw rod (14) is all installed to the inside of first dustproof mechanism (13), and the both ends of screw rod (14) all are connected through the bearing rotation with first dustproof mechanism (13), slider (27) are all installed to the outside of screw rod (14), two are installed to slider (27), and slider (27) and screw rod (14) looks adaptation, slider (27) and first mounting bracket (15) fixed connection, and first mounting bracket (15) are located the front end of slider (27), the one end welded fastening of screw rod (14) has driven gear (26), step motor (23) is installed respectively to the outside of first dustproof mechanism (13), and step motor (23) passes through the screw fixation with shell (1), the output shaft of step motor (23) is fixed and is provided with driving gear (24), a transmission gear shaft (25) is installed between the driving gear (24) and the driven gear (26), two ends of the transmission gear shaft (25) are respectively meshed with the driving gear (24) and the driven gear (26) and connected with the first dustproof mechanism (13) in a rotating mode through a bearing.

3. The communication device of claim 1, wherein the communication device further comprises: the box is characterized in that the touch switch (8) is connected with the shell (1) in a sliding mode, one end of the touch switch (8) extends into the box shell (1), a guide rail (17) is fixedly arranged at the upper end inside the shell (1), the upper end of the second dustproof mechanism (16) is connected with the guide rail (17) in a sliding mode, an underframe (18) is fixedly arranged on one side of the lower end of the second dustproof mechanism (16), the underframe (18) is fixedly connected with the second mounting frame (19), and the second mounting frame (19) is located at the front end of the underframe (18).

4. The communication device of claim 3, wherein the communication device further comprises: the utility model discloses a telescopic automobile seat, including shell (1), chassis (18), fixed sleeve (20) that is provided with between shell (1) and chassis (18), the internally mounted of sleeve (20) has telescopic link (21), and the one end of telescopic link (21) extends to the outside of sleeve (20), and telescopic link (21) and sleeve (20) sliding connection, the one end and chassis (18) fixed connection of sleeve (20) are kept away from in telescopic link (21), fixed spring (22) that are provided with between telescopic link (21) and sleeve (20).

5. The communication device of claim 1, wherein the communication device further comprises: backshell (12) are installed to the rear end of shell (1), and backshell (12) pass through the screw fixation with shell (1), the rear end of shell (1) is fixed and is provided with heat-conducting plate (31), the rear end of heat-conducting plate (31) is fixed and is provided with radiating fin (32), and radiating fin (32) are provided with a plurality of, and radiating fin (32) distribute in proper order, the equal fixed mounting of last lower extreme of backshell (12) inside has radiator fan (33).

6. The communication device of claim 5, wherein the communication device further comprises: the rear end of the cooling fan (33) is provided with a third dust prevention net (34), and the third dust prevention net (34) is fixedly connected with the rear shell (12).

7. The communication device of claim 1, wherein the communication device further comprises: speaker (28) are installed to the below of first dust screen (7), communication module (30) are installed to the below of speaker (28), and communication module (30) pass through the screw fixation with shell (1), microphone (29) are installed to the below of second dust screen (11).

8. The communication device of claim 1, wherein the communication device further comprises: the upper end of the shell (1) is respectively and fixedly provided with a signal antenna (2), a frequency modulation knob (3) and a volume knob (4).

9. The method of using the communication device with strong dust-proof capability of any one of claims 1-8, characterized by comprising the following steps:

when the communication equipment is not started, the first dustproof plate (6) completely covers the outer part of the first dustproof net (7) so as to form protection of the sound raising holes (5), and the second dustproof plate (10) completely covers the outer part of the second dustproof net (11) so as to form protection of the sound inlet holes (9);

step two, when a user uses the communication equipment, the user can integrally start and simultaneously drive the two stepping motors (23) to work, the driving gear (24) on the output shafts of the stepping motors (23) drives the driven gear (26) on the screw rods (14) to rotate under the meshing action through the transmission gear shaft (25), so that the two screw rods (14) synchronously rotate, the rotary motion is converted into the linear motion under the action of friction force, the sliding block (27) drives the first mounting frame (15) to move upwards, the first dust guard (6) is gradually separated from the first dust guard (7), the sound raising holes (5) are exposed to the outside, and at the moment, the user can know the voice message transmitted by the loudspeaker (28);

step three, when a user prepares to send a voice message, the touch switch (8) is pressed to enable the second dustproof mechanism (16) to contract inwards, the second mounting frame (19) is located at the front end of the bottom frame (18), the second mounting frame (19) is located inside the front end shell and is in sliding connection with the front end shell, along with the pressing of the touch switch (8), the second dustproof mechanism (16) pushes the bottom frame (18) to enable the second dustproof plate (10) inside the second mounting frame (19) to move towards one side, and the sound inlet hole (9) provided with the second dustproof net (11) is gradually exposed to the outside, so that the user can directly carry out voice transmission through the sound inlet hole (9);

step four, when the communication equipment is closed after use, the power supply of the communication module (30) drives the stepping motor (23) to rotate reversely, the sliding block (27) drives the first mounting frame (15) to move downwards, so that the first dustproof plate (6) covers the upper side of the first dustproof net (7) again, the sound-raising hole (5) is covered, when a user releases the touch switch (8), the extrusion force of the second dustproof mechanism (16) on the bottom frame (18) disappears, meanwhile, the other side of the bottom frame (18) is provided with the sleeve (20) provided with the telescopic rod (21), the spring (22) between the two pushes the bottom frame (18) under the elastic reset action, the bottom frame (18) moves towards the other side, and then the second dustproof plate (10) covers the upper end of the second dustproof net (11) again.