CN205135710U - Gas alarm - Google Patents

Abstract

The utility model discloses a gas alarm, including electrochemistry gas sensor, buzzer, seal shell, display screen, compass, singlechip and battery, electrochemistry gas sensor passes through on the sealing washer installation seal shell, the display screen nestification is installed on seal shell's surface, the fixed band is installed at both ends about seal shell, buzzer seal installation is on seal shell, the inside at seal shell is installed to the singlechip, electrochemistry gas sensor's the output and the input electric connection of signal amplification module, the output of AD converter and the input electric connection of singlechip, the output of singlechip and the input electric connection of warning light, buzzer and display screen. The utility model discloses install the compass on seal shell, because of getting lost very easily below the mine, the compass can make accurate the taking one's bearings of miner.

Description

A kind of gas alarm

Technical field

The utility model relates to alarm technical field, specifically a kind of gas alarm.

Background technology

Gas is the accompaniment of coal mining, and gas explosion has become the first chief culprit of China's mine disaster.In the recurrent accident of mine, miner enters the death caused in stuffy region and also accounts for significant proportion, and particularly anoxia asphyxia is particularly serious.Therefore, how accurate measurements gas density, gives warning in advance when it transfinites and takes corresponding preventive action to become the key issue preventing Frequent Coal Mine Calamities.

Summary of the invention

For the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of gas alarm.

To achieve these goals, the technical scheme that the utility model adopts is: a kind of gas alarm, comprise electrochemistry firedamp sensor, buzzer, seal casinghousing, display screen, compass, single-chip microcomputer and battery, described electrochemistry firedamp sensor is installed on seal casinghousing by sealing ring, described display screen is nested to be arranged on the external surface of seal casinghousing, the two ends, left and right of described seal casinghousing are provided with fixed band, described buzzer sealing is arranged on seal casinghousing, the external surface of described buzzer is provided with warning lamp, described compass is arranged on the external surface of seal casinghousing, the inside of described seal casinghousing is provided with signal amplification module, A/D converter and time showing module, described single-chip microcomputer is arranged on the inside of seal casinghousing, the output of described electrochemistry firedamp sensor and the input of signal amplification module are electrically connected, the output of described signal amplification module and the input of A/D converter are electrically connected, the output of described A/D converter and the input of single-chip microcomputer are electrically connected, the output of described single-chip microcomputer and warning lamp, the input of buzzer and display screen is electrically connected, the output of described time showing module and the input of display screen are electrically connected, described battery and single-chip microcomputer are electrically connected.

Further, the side of described seal casinghousing is provided with charge port, and charge port is provided with seal cover.

Further, described single-chip microcomputer is provided with positioning chip, positioning chip and single-chip microcomputer are electrically connected.

Further, described fixed band is provided with stretching device.

Adopt after technique scheme, the utility model compared to the prior art advantageously:

Gas alarm described in the utility model, adopt electrochemistry firedamp sensor, there is cost of production low, simple to operate, non-maintaining and low energy consumption, can be good at electronic technology compatible, high in monitoring gas density sensitivity, seal casinghousing is provided with compass, because being easy to get lost below mine, compass can make miner take one's bearings accurately, at the two ends of seal casinghousing, fixed band is installed, can facilitate that miner's be carried on arm, can gas numerical value under acquisition mine promptly and accurately, warning lamp is installed and buzzer can remind workman timely, this region gas density has exceeded standard.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated:

Fig. 1 is overall structure schematic diagram of the present utility model;

Fig. 2 is internal construction schematic diagram of the present utility model;

Fig. 3 is theory diagram of the present utility model.

In Reference numeral: 1-sealing ring; 2-electrochemistry firedamp sensor; 3-warning lamp; 4-buzzer; 5-fixed band; 6-seal casinghousing; 7-display screen; 8-compass; 9-signal amplification module; 10-A/D converter; 11-single-chip microcomputer; 12-time showing module; 13-battery.

Detailed description of the invention

The following stated is only preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.

Embodiment, as Figure 1-3, a kind of gas alarm, comprise electrochemistry firedamp sensor 2, buzzer 4, seal casinghousing 6, display screen 7, compass 8, single-chip microcomputer 11 and battery 13, electrochemistry firedamp sensor 2 is installed on seal casinghousing 6 by sealing ring 1, on the nested external surface being arranged on seal casinghousing 6 of display screen 7, the two ends, left and right of seal casinghousing 6 are provided with fixed band 5, facilitate carrying of gas alarm, buzzer 4 sealing is arranged on seal casinghousing 6, the external surface of buzzer 4 is provided with warning lamp 3, the gas density of miner this area can be reminded timely to exceed standard, needs are withdrawn, compass 8 is arranged on the external surface of seal casinghousing 6, workman can be allowed to take one's bearings fast, prevent lost in down-hole, the inside of seal casinghousing 6 is provided with signal amplification module 9, A/D converter 10 and time showing module 12, single-chip microcomputer 11 is arranged on the inside of seal casinghousing 6, the output of electrochemistry firedamp sensor 2 and the input of signal amplification module 9 are electrically connected, the output of signal amplification module 9 and the input of A/D converter 10 are electrically connected, the output of A/D converter 10 and the input of single-chip microcomputer 11 are electrically connected, the output of single-chip microcomputer 11 and warning lamp 3, the input of buzzer 4 and display screen 7 is electrically connected, the input of time showing module 12, battery 13 and single-chip microcomputer 11 are electrically connected, the side of seal casinghousing 6 is provided with charge port, and charge port is provided with seal cover, prevent dust from entering into charge port, also prevent electrostatic interaction simultaneously, single-chip microcomputer 11 is provided with positioning chip, each miner can be located accurately, be convenient to the management to miner, when there is construction, the stranded position of miner can be located fast and accurately, positioning chip and single-chip microcomputer 11 are electrically connected, fixed band 5 is provided with stretching device, the gas density under mine is detected by electrochemistry firedamp sensor 2, electrochemistry firedamp sensor 2 is sent to signal amplification module 9, electrochemistry firedamp sensor 2 is transmitted after the signal come amplifies and enter into single-chip microcomputer 11 after A/D modular converter 10, single-chip microcomputer 11 process after by data transfer on display screen 7, time the numerical value that single-chip microcomputer 11 processes is greater than preset concentration, single-chip microcomputer 11 will start buzzer 4 and warning lamp 3 to remind workman's.

To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.

The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.

Claims (4)

1. a gas alarm, comprise electrochemistry firedamp sensor (2), buzzer (4), seal casinghousing (6), display screen (7), compass (8), single-chip microcomputer (11) and battery (13), it is characterized in that: described electrochemistry firedamp sensor (2) is installed on seal casinghousing (6) by sealing ring (1), on the nested external surface being arranged on seal casinghousing (6) of described display screen (7), the two ends, left and right of described seal casinghousing (6) are provided with fixed band (5), described buzzer (4) sealing is arranged on seal casinghousing (6), the external surface of described buzzer (4) is provided with warning lamp (3), described compass (8) is arranged on the external surface of seal casinghousing (6), the inside of described seal casinghousing (6) is provided with signal amplification module (9), A/D converter (10) and time showing module (12), described single-chip microcomputer (11) is arranged on the inside of seal casinghousing (6), the output of described electrochemistry firedamp sensor (2) and the input of signal amplification module (9) are electrically connected, the output of described signal amplification module (9) and the input of A/D converter (10) are electrically connected, the output of described A/D converter (10) and the input of single-chip microcomputer (11) are electrically connected, the output of described single-chip microcomputer (11) and warning lamp (3), the input of buzzer (4) and display screen (7) is electrically connected, the output of described time showing module (12) and the input of display screen (7) are electrically connected, described battery (13) and single-chip microcomputer (11) are electrically connected.

2. a kind of gas alarm according to claim 1, is characterized in that: the side of described seal casinghousing (6) is provided with charge port, and charge port is provided with seal cover.

3. a kind of gas alarm according to claim 1, is characterized in that: (11) are provided with positioning chip with described single-chip microcomputer, and positioning chip and single-chip microcomputer (11) are electrically connected.

4. a kind of gas alarm according to claim 1, is characterized in that: described fixed band (5) is provided with stretching device.