CN103007456A - Timing warning device used for chemical oxygen-generating respirator - Google Patents

Abstract

The invention relates to a timing warning device used for a chemical oxygen-generating respirator, which comprises a self-controlled position switch, a temperature-controlled contact self-controlled switch, a buzzer siren, LED electric quantity indicator lights, LED timing indicator lights and a power supply. Before working, the oxygen generation device of the chemical oxygen-generating respirator is installed in place, the self-controlled position switch is turned on, and the LED electric quantity indicator lights display the electric quantity; during the working process, the expelled air from the human body enters the oxygen generation device through a breathing pipeline to react chemically to generate heat, and temperature is raised; when the change of temperature reaches the set value, the temperature-controlled contact self-controlled switch is turned on, the green light of the LED timing indicator lights is on and the timing is started; and when time reaches the set time of remaining time of the respirator, the red light of the LED timing indicator lights flashes, and the buzzer siren indicates a user to leave from the hazardous environment in time. The timing warning device makes up the defect that the present chemical oxygen-generating respirator is not provided with a timing warning device, realizes the real-time monitoring and warning of the working conditions of the type of the respirators, and ensures the safety of users.

Description

A kind of timing and alarming device for the chemical oxygen generation respirator

Technical field

The present invention is the important composition unit of chemical oxygen generation respirator.The chemical oxygen generation respirator is applied to fire-fighting, colliery, chemical industry, tunnel and skyscraper etc. and detects and wear use in the work in disaster environment rescue and relief work, the search of poisonous, pernicious gas, anoxic.The present invention relates to a kind of timing and alarming device of chemical oxygen generation respirator, particularly a kind of timing and alarming device that adopts temperature contact automatic control timing technology.

Background technology

The timing and alarming device is the important composition unit of chemical oxygen generation respirator.The principle of chemical oxygen generation respirator is take the carbon dioxide of chemical oxygen-producing agent and characteristics of contaminated respiratory droplets, steam as raw material, eliminates carbon dioxide and produces oxygen for human body respiration by chemical reaction.And the major function of timing and alarming device is to point out the user effectively producing oxygen in the time, hold in advance the remaining time of respirator normal operation, in time withdraws hazardous environment.

At present, on the market existing chemical oxygen generation respirator the timing and alarming device all is not set, this exists risk for the user, therefore the invention provides a kind of timing and alarming device for the chemical oxygen generation respirator very necessary.And the chemical oxygen generation respirator is because its operation principle structure is different, the vapour-pressure type warning device that can not adopt other respirator in the market to commonly use.

Summary of the invention

For effectively show, monitoring chemical oxygen inhalation apparatus work processed service time, the invention provides a kind of have fire prevention, waterproof, explosion prevention function, simple in structure, the timing and alarming device that utilizes temperature contact automatic control timing technology of stable performance.

Technical scheme of the present invention is: a kind of timing and alarming device for the chemical oxygen generation respirator, this device comprises autocontrol position switch, temperature control contact autocontrol switch, buzzer siren, LED battery capacity indication lamp, LED timing indicator lamp and power supply, described autocontrol position switch and described temperature control contact autocontrol switch by wire be connected, described temperature control contact autocontrol switch is connected by wire with described LED timing indicator lamp, described LED timing indicator lamp is connected by wire with described buzzer siren; Described power supply is above-mentioned autocontrol position switch, temperature control contact autocontrol switch, buzzer siren, the power supply of LED timing indicator lamp, and described power supply is battery, and described power supply is provided with described LED battery capacity indication lamp; Before the work, after the product oxygen device of chemical oxygen generation respirator is in place, described autocontrol position switch auto-closing, whole circuit is connected; When the chemical oxygen generation respirator is started working, produce and chemical reaction occurs in the oxygen device and produce heat, raise so that produce oxygen device outside wall temperature, when variations in temperature reached setting value, described temp autocontrolled switch was connected automatically, LED timing indicator lamp begins timing, the LED light green light is bright simultaneously, and timing arrives the use of respirator residue during the stipulated time, LED timing indicator lamp when red, the buzzer siren buzzer warning points out the user to withdraw the dangerous work environment simultaneously.

Further, described wire is high temperature wire.

Beneficial effect of the present invention is as follows:

(1) by adopting the autocontrol position switch, guarantees that the warning device system in time switches on and off, and need not manually.

(2) by the automatic control of temperature contact and LED timing indicator lamp, realize chemical oxygen generation respirator residue real-time, the accurately monitoring of service time.

(3) adopt buzzer warning, the alarm sounding is large, and continuation, good stability guarantee that the respirator user in time knows, the safe escape hazardous environment.

(4) device has fire prevention, waterproof, explosion prevention function, and is simple in structure, stable performance.

 

Description of drawings

Fig. 1 is the schematic diagram that the present invention is used for the timing and alarming device of chemical oxygen generation respirator.

Fig. 2 is the schematic block circuit diagram that the present invention is used for the timing and alarming device of chemical oxygen generation respirator.

Among the figure:

1. autocontrol position switch, 2. temperature control contact autocontrol switch, 3. wire, 4. buzzer siren, 5.LED battery capacity indication lamp, 6.LED timing indicator lamp, 7. power supply.

The specific embodiment

Below in conjunction with drawings and Examples technical scheme of the present invention is further specified.

As shown in Figure 1 and Figure 2, a kind of timing and alarming device for the chemical oxygen generation respirator of the present invention, this device comprises autocontrol position switch 1, temperature controlcontact autocontrol switch 2,buzzer siren 4, LED batterycapacity indication lamp 5, LEDtiming indicator lamp 6 andpower supply 7, autocontrol position switch 1 and temperature controlcontact autocontrol switch 2 bywire 3 be connected, temperature controlcontact autocontrol switch 2 is connected bywire 3 with described LEDtiming indicator lamp 6, LEDtiming indicator lamp 6 is connected bywire 3 withbuzzer siren 4;Power supply 7 is above-mentioned autocontrol position switch 1, temperature controlcontact autocontrol switch 2,buzzer siren 4,6 power supplies of LED timing indicator lamp, and power acquisition battery, power supply are provided with LED batterycapacity indication lamp 5;

Before the work, after the product oxygen device of chemical oxygen generation respirator is in place, autocontrol position switch 1 auto-closing, whole circuit is connected, and the green light of LED batterycapacity indication lamp 5 is bright, and the expression electric weight is sufficient; The red light of LED batterycapacity indication lamp 5 is always bright, and then electric weight is not enough, needs to change battery.

Chemical reaction occurs and emits oxygen and produce heat in the gas of characteristics of contaminated respiratory droplets during work (carbon dioxide, steam) in breathing pipeline enters product oxygen device, raise so that produce oxygen device outside wall temperature, when variations in temperature reaches setting value, tempautocontrolled switch 2 is connected automatically, the 6 beginning timing of LED timing indicator lamp, the LED light green light is bright simultaneously, timing arrives the use of respirator residue during the stipulated time, the when red of LEDtiming indicator lamp 6,buzzer siren 4 buzzer warnings point out the user to withdraw the dangerous work environment simultaneously.

Above one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.

Claims (3)

1. timing and alarming device that is used for the chemical oxygen generation respirator, it is characterized in that: this device adopts autocontrol position switch and the control of temperature control contact autocontrol switch, by LED timing indicator lamp and buzzer warning, realize respirator is used the Real Time Monitoring of state.

2. a kind of timing and alarming device for the chemical oxygen generation respirator as claimed in claim 1, it is characterized in that, this device comprises autocontrol position switch (1), temperature control contact autocontrol switch (2), buzzer siren (4), LED battery capacity indication lamp (5), LED timing indicator lamp (6) and power supply (7), described autocontrol position switch (1) is connected by wire (3) with described temperature control contact autocontrol switch (2), described temperature control contact autocontrol switch (2) is connected by wire (3) with described LED timing indicator lamp (6), and described LED timing indicator lamp (6) is connected by wire (3) with described buzzer siren (4); Described power supply (7) is above-mentioned autocontrol position switch (1), temperature control contact autocontrol switch (2), buzzer siren (4), LED timing indicator lamp (6) power supply, described power supply (7) is battery, and described power supply (7) is provided with described LED battery capacity indication lamp (5); Before the work, after the product oxygen device of chemical oxygen generation respirator is in place, described autocontrol position switch (1) auto-closing, whole circuit is connected, when the chemical oxygen generation respirator is started working, produce and chemical reaction occurs in the oxygen device and produce heat, raise so that produce oxygen device outside wall temperature, when variations in temperature reached setting value, described temp autocontrolled switch (2) was connected automatically, LED timing indicator lamp (6) beginning timing, LED light gives a green light simultaneously, and timing arrives the use of respirator residue during the stipulated time, and LED timing indicator lamp (6) sends out a warning, buzzer siren buzzer (4) is reported to the police simultaneously, and the prompting user withdraws the dangerous work environment.

3. a kind of timing and alarming device for the chemical oxygen generation respirator according to claim 1 is characterized in that, described wire (3) is high temperature wire.

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