CN205007463U - Breathing mask with intercom device and harmful gas alarm - Google Patents

Abstract

The utility model relates to a breathing mask with intercom device and harmful gas alarm, include the breathing mask body and fix intercom device, the harmful gas alarm on breathing mask, intercom device includes: main part, adapter and earplug receiver, the harmful gas alarm includes: alarm device, sensing wire and sensor. Not only can realize wearing the function of talkbacking under the breathing mask condition to the warning of toxic gas has been realized.

Description

With the breathing mask of talkback unit and warning device to harmful gas

Technical field

The utility model relates to breathing mask technical field, particularly relates to a kind of breathing mask with talkback unit and warning device to harmful gas.

Background technology

Breathing mask is the personal protection equipment preventing the harmful substance such as poison gas, dust, bacterium from injuring, and it is widely used in the safety-security areas such as military affairs, fire-fighting, rescue and relief work.

Breathing mask is due to factor impacts such as structure, material, cavity airtights, and the sound of user is difficult to the people reaching surrounding, also cannot use hand-held talk back equipment, causes can not conversing preferably between personnel.Particularly in complex environment more, more inconveniently to communicate.

Meanwhile, due to the closed nature of breathing mask, cause user to be difficult to notice the warning of external harmful gas alarm, accurately cannot judge the danger of external environment condition.

Utility model content

In view of above-mentioned analysis, the utility model aims to provide a kind of breathing mask with talkback unit and warning device to harmful gas, lacks pernicious gas and reminds, and cannot realize the problem of intercommunication in order to solve existing breathing mask.

The purpose of this utility model is mainly achieved through the following technical solutions:

With a breathing mask for talkback unit and warning device to harmful gas, it is characterized in that:

Comprise breathing mask body and be fixed on talkback unit, the warning device to harmful gas on breathing mask; Described talkback unit comprises: main body, sound pick-up and ear type receiver; Described warning device to harmful gas comprises: warning device, transducer wire and sensor.

Described main body is arranged on outside breathing mask, and sound pick-up is arranged on the position near user's mouth inside breathing mask, and on sound pick-up, words socket is sent in connection; Described main body is made up of housing and battery, circuit board and the antenna be arranged on outside housing be arranged in housing; Rear end face in described housing has and send words plug, housing lower left is provided with called socket, and makes to send words plug to talk about socket and be connected with sending, and called socket is connected with the called plug on ear type receiver; Described circuit board is provided with DSP, audio codec, RF transmit-receive circuit, radio-frequency front-end amplifier, the analogue voice signal input of described audio codec is talked about plug and is connected with sending, and audio codec analogue voice signal output is connected with called socket; The digital signal end of described antenna, radio-frequency front-end amplifier, RF transmit-receive circuit, DSP and audio codec connects successively.

Talkback unit main body is provided with control button; Complete the functions such as switching on and shutting down, channel, volume and model selection, in ear type receiver, while operation, report out the voice of corresponding state information.

Described sensor is installed on breathing mask outside, for detecting the toxic gas content in air;

Warning device is connected by transducer wire with sensor, described warning device is connected with the DSP in described talkback unit, when the toxic gas content overproof in air, warning message is sent to described DSP by warning device, to be sounded alarm by the ear type receiver of described talkback unit.

The utility model beneficial effect is as follows:

Adopt breathing mask disclosed in the utility model, not only can realize the intercommunication function in the situation of wearing a gas mask, and achieve the warning of toxic gas.

Other feature and advantage of the present utility model will be set forth in the following description, and, becoming apparent from description of part, or understand by implementing the utility model.The purpose of this utility model and other advantages realize by structure specifically noted in write description, claims and accompanying drawing and obtain.

Accompanying drawing explanation

Accompanying drawing only for illustrating the object of specific embodiment, and is not thought restriction of the present utility model, and in whole accompanying drawing, identical reference symbol represents identical parts.

Fig. 1 is the utility model talkback unit block diagram;

Fig. 2 is the utility model warning device to harmful gas block diagram.

Detailed description of the invention

Specifically describe preferred embodiment of the present utility model below in conjunction with accompanying drawing, wherein, accompanying drawing forms the application's part, and is used from embodiment one of the present utility model and explains principle of the present utility model.

With the breathing mask of talkback unit and warning device to harmful gas, comprise breathing mask body and be fixed on talkback unit, the warning device to harmful gas on breathing mask.

As shown in Figure 1, described talkback unit is made up of main body, sound pick-up, ear type receiver.

Described main body is arranged on outside breathing mask, and sound pick-up is arranged on the position near user's mouth inside breathing mask, and on sound pick-up, words socket is sent in connection; Described main body is made up of housing and battery, circuit board and the antenna be arranged on outside housing be arranged in housing; Rear end face in described housing has and send words plug, housing lower left is provided with called socket, and makes to send words plug to talk about socket and be connected with sending, and called socket is connected with the called plug on ear type receiver; Described circuit board is provided with DSP, audio codec, RF transmit-receive circuit, radio-frequency front-end amplifier, the analogue voice signal input of described audio codec is talked about plug and is connected with sending, and audio codec analogue voice signal output is connected with called socket; The digital signal end of described antenna, radio-frequency front-end amplifier, RF transmit-receive circuit, DSP and audio codec connects successively.

Talkback unit main body is provided with control button, complete switching on and shutting down, channel, the function such as volume and model selection, in ear type receiver, the voice of corresponding state information are reported out while operation, described talkback unit realizes radio intercommunication according to the operation controlling button, the voice signal that sound pick-up gathers user is sent to audio codec, analog signal is transformed and forms data signal, then data signal is sent to DSP and carries out the compression of multi-slot speech information, frame data are launched, multi-path voice data multiplexing synthesizes, and related control information, data message, the process of the bulk informations such as external data interface, distribute and coordinate.Frame data are sent to RF transmit-receive circuit and complete modulation to information, the radiofrequency signal of carry information is sent to radio-frequency front-end amplifier and improves power, go out finally by antenna transmission.Reception is received by antenna the radiofrequency signal of carry information in space, carries out amplifying, demodulation, decompression, frame data receive, D/A transforms and forms simulated voice information, by ear type receiver reduction speech information.

Described talkback unit has automatic voice PTT function, does not need to operate ptt switch during speech, and radiating circuit activates by speech automatically, controls to launch.Radio communication adopts time-division duplex working method (TDD), realizes duplex call.Group-net communication adopts time division multiple acess (TDMA) asynchronous communication Networking protocol, both can realize a little conversing to the broadcast type of any multiple spot, the duplex call while of also can realizing between many people.

As shown in Figure 2, described warning device to harmful gas comprises: warning device, transducer wire and sensor, and sensor is installed on breathing mask outside, for detecting the toxic gas content in air; Warning device is connected by transducer wire with sensor.Described warning device is connected with the DSP in described talkback unit, when the toxic gas content overproof in air, warning message is sent to described DSP by warning device, to be sounded alarm by the ear type receiver of described talkback unit.

In sum, the utility model embodiment provides a kind of breathing mask with talkback unit and warning device to harmful gas, not only can realize the intercommunication function in the situation of wearing a gas mask, and achieve the warning of toxic gas.

The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.

Claims (4)

1., with a breathing mask for talkback unit and warning device to harmful gas, it is characterized in that:

Comprise breathing mask body and be fixed on talkback unit, the warning device to harmful gas on breathing mask; Described talkback unit comprises: main body, sound pick-up and ear type receiver; Described warning device to harmful gas comprises: warning device, transducer wire and sensor.

2. the breathing mask with talkback unit and warning device to harmful gas according to claim 1, is characterized in that:

Described main body is arranged on outside breathing mask, and sound pick-up is arranged on the position near user's mouth inside breathing mask, and on sound pick-up, words socket is sent in connection; Described main body is made up of housing and battery, circuit board and the antenna be arranged on outside housing be arranged in housing; Rear end face in described housing has and send words plug, housing lower left is provided with called socket, and makes to send words plug to talk about socket and be connected with sending, and called socket is connected with the called plug on ear type receiver; Described circuit board is provided with DSP, audio codec, RF transmit-receive circuit, radio-frequency front-end amplifier, the analogue voice signal input of described audio codec is talked about plug and is connected with sending, and audio codec analogue voice signal output is connected with called socket; The digital signal end of described antenna, radio-frequency front-end amplifier, RF transmit-receive circuit, DSP and audio codec connects successively.

3. the breathing mask with talkback unit and warning device to harmful gas according to claim 1, is characterized in that:

Talkback unit main body is provided with control button; Complete the functions such as switching on and shutting down, channel, volume and model selection, in ear type receiver, while operation, report out the voice of corresponding state information.

4. the breathing mask with talkback unit and warning device to harmful gas according to claim 2, is characterized in that:

Described sensor is installed on breathing mask outside, for detecting the toxic gas content in air;

Warning device is connected by transducer wire with sensor, described warning device is connected with the DSP in described talkback unit, when the toxic gas content overproof in air, warning message is sent to described DSP by warning device, to be sounded alarm by the ear type receiver of described talkback unit.