Portable gas detection alarm instrument

Abstract

The utility model provides a portable gas detection alarm apparatus, which comprises a front shell, a support assembly and a rear shell, the front shell is installed on the rear shell through a bolt assembly, the support assembly is arranged between the front shell and the rear shell, a main control board is arranged between the rear shell and the support assembly, a plurality of gas sensors are arranged on the main control board, and the gas sensors are arranged on the main control board. The support assembly comprises a support body and a sensor support, and the gas sensor is contained in the sensor support. The alarm apparatus is rapid in response, capable of rapidly detecting the concentration of combustible gas, oxygen, hydrogen sulfide and carbon monoxide in air, diversified in alarm, capable of sending out sound, light and vibration alarm signals in the first time, suitable for detecting different types of electrochemical toxic gas and capable of being used in different industrial field environments.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a portable gas detection and alarm instrument. Background Art

[0002] Industrial sites such as coal mines, dust, medicine, and chemical industries are constantly filled with harmful gases (such as hydrogen sulfide and carbon monoxide) or flammable and explosive gases (such as methane). During production work, they imperceptibly affect people's health and even endanger lives. With the rapid development of early warning and hidden danger detection technologies, portable gas detection technologies have become very mature and are widely used in industrial safety monitoring, indoor air quality detection, hazardous substance detection, and environmental protection monitoring. Targeting the key links in the process of disaster gestation, occurrence, and development and breaking its chain of consecutive development is an important part of the safety accident prevention and control technology system.

[0003] Currently, the mainstream portable gas detection technology is to use a gas detection and alarm instrument, which is mainly applied in fields such as metallurgy, chemical industry, environmental protection, and coal mines for the detection of toxic and harmful gases, and alarms when the gas concentration in the environment exceeds the standard. However, the industrial site environment is complex and there are various types of gases, and the gas detection and alarm instrument with fixed detection gases can no longer meet the requirements of complex working conditions. Summary of the Invention

[0004] To overcome the deficiencies of the prior art, the utility model proposes a portable gas detection and alarm instrument with rapid response, which can quickly detect the concentrations of combustible gas, oxygen, hydrogen sulfide, and carbon monoxide in the air, has diversified alarms, can emit three alarm signals of sound, light, and vibration at the first time, is suitable for detecting different types of electrochemical toxic gases, and can be used in different industrial site environments.

[0005] To achieve the above object, the portable gas detection and alarm instrument of the utility model includes a front shell, a bracket assembly, and a rear shell. The front shell is installed on the rear shell through a bolt assembly. The bracket assembly is arranged between the front shell and the rear shell. A main control board is provided between the rear shell and the bracket assembly. Several gas sensors are provided on the main control board. The bracket assembly includes a bracket body and a sensor bracket, and the gas sensors are accommodated in the sensor bracket.

[0006] Further, the bracket body includes a main body plate, and support plates extending towards the rear shell are provided on each side of the main body plate. The support plates and the main body plate form an open box-like structure.

[0007] Further, the sensor bracket is arranged at the bottom of the main body plate. The sensor bracket includes several cylinders, and the number of cylinders is the same as the number of gas sensors. The shape of the cylinders is adapted to the gas sensors.

[0008] Further, a battery is provided between the main body board and the main control board. A main control chip is provided on the main control board, and a buzzer is provided at the bottom of the main control board. A display screen is provided between the main body board and the front housing, and a Type-C interface is provided on the rear housing. A dust plug is provided in the Type-C interface.

[0009] Further, a rubber pad is provided between the gas sensor and the front housing. The rubber pad is provided with openings in the same number as the gas sensors. The front housing is provided with air inlets in the same number as the gas sensors, and a mesh is provided on the air inlets.

[0010] Further, the gas sensors include an oxygen sensor, a hydrogen sulfide sensor, a carbon monoxide sensor, and a combustible sensor.

[0011] Further, an indicator light epoxy strip is provided on the outer side of the front housing, and a lamp control board is provided on the inner side of the front housing. An LED lamp is provided on the lamp control board.

[0012] Further, a back clip is provided on one side of the rear housing facing away from the front housing.

[0013] The portable gas detection and alarm instrument of the present utility model has a rapid response, can quickly detect the concentrations of combustible gas, oxygen, hydrogen sulfide, and carbon monoxide in the air, has diverse alarms, and can emit three alarm signals of sound, light, and vibration at the first time. It is suitable for detecting different types of electrochemical toxic gases and can be used in different industrial site environments. Description of the Drawings

[0014] The present utility model will be further described and elaborated below with reference to the drawings.

[0015] Figure 1 It is a schematic structural diagram of the portable gas detection and alarm instrument of the preferred embodiment of the present utility model.

[0016] Figure 2 It is a cross-sectional view of the portable gas detection and alarm instrument.

[0017] Figure 3 It is an exploded view of the portable gas detection and alarm instrument.

[0018] Reference numerals: 1, front housing; 11, indicator light epoxy strip; 12, lamp control board; 13, LED lamp; 2, rear housing; 21, Type-C interface; 22, dust plug; 23, back clip; 3, bracket assembly; 311, main body board; 312, support board; 32, sensor bracket; 321, cylinder; 4, main control board; 41, battery; 42, buzzer; 43, display screen; 5, gas sensor; 51, rubber pad; 52, mesh. Detailed Embodiments

[0019] The technical solution of the present utility model will be described more clearly and completely below in conjunction with the accompanying drawings and through the description of the preferred embodiments of the present utility model.

[0020] As Figure 1 and Figure 2 shown, the portable gas detection and alarm instrument of the preferred embodiment of the present utility model includes a front housing 1, a bracket assembly 3 and a rear housing 2. The front housing 1 is installed on the rear housing 2 through a bolt assembly. A back clip 23 is provided on the side of the rear housing 2 facing away from the front housing 1.

[0021] As Figure 2 and Figure 3 shown, the bracket assembly 3 is arranged between the front housing 1 and the rear housing 2. The bracket assembly 3 includes a bracket main body and a sensor bracket 32. The bracket main body includes a main body plate 311. Support plates 312 extending towards the rear housing 2 are provided on the sides of the main body plate 311. The support plates 312 and the main body plate 311 form an open box-like structure. The sensor bracket 32 is arranged at the bottom of the main body plate 311. The sensor bracket 32 includes 4 cylinders 321. Gas sensors 5 are respectively accommodated in the 4 cylinders 321. The 4 gas sensors 5 are respectively an oxygen sensor, a hydrogen sulfide sensor, a carbon monoxide sensor and a combustible sensor. A rubber pad 51 is provided between the gas sensor 5 and the front housing 1. 4 openings are provided on the rubber pad 51. The front housing 1 is provided with air inlets having the same number as the gas sensors 5. A mesh 52 is provided on the air inlets. The sealing performance between the gas sensor 5 and the air inlets is improved through the rubber pad 51.

[0022] As Figure 2 and Figure 3 shown, a main control board 4 is provided between the rear housing 2 and the bracket assembly 3. The electrodes of the gas sensors 5 are electrically connected to the main control board 4. A main control module and a signal acquisition module are provided on the main control board 4. The main control module is composed of a main control chip and a peripheral filtering circuit, and is mainly used for processing the data transmitted by the signal acquisition module, analyzing and processing it, generating visible data for display, and transmitting the alarm signal to the staff. The signal acquisition module converts the current signal output by the sensor into a voltage signal through an operational amplifier and transmits it to the main control module for processing. A buzzer 42 is provided at the bottom of the main control board 4. An indicator light potting strip 11 is provided on the outer side of the front housing 1. A lamp control board 12 is provided on the inner side of the front housing 1. An LED lamp 13 is provided on the lamp control board 12. A battery 41 is provided between the main body plate 311 and the main control board 4, and a 3.3VDC power supply is output through a power conversion module to provide power. A display screen 43 is provided between the main body plate 311 and the front housing 1. A Type-C interface 21 is provided on the rear housing 2, and a dust-proof plug 22 is provided in the Type-C interface 21.

[0023] The portable gas detection and alarm instrument of the present utility model has a rapid response, can quickly detect the concentrations of combustible gas, oxygen, hydrogen sulfide and carbon monoxide in the air, has diversified alarms, and can emit three alarm signals of sound, light and vibration at the first time. It is applicable to detecting different types of electrochemically toxic gases and can be used in different industrial site environments.

[0024] The above specific embodiments only describe the preferred embodiments of the present utility model, rather than limiting the protection scope of the present utility model. Without departing from the design concept and spirit scope of the present utility model, various deformations, substitutions and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model according to the written description and drawings provided by the present utility model shall fall within the protection scope of the present utility model. The protection scope of the present utility model is determined by the claims.

Claims

1. A portable gas detection and alarm device, characterized in that, it includes a front housing (1), a bracket assembly (3) and a rear housing (2). The front housing (1) is installed on the rear housing (2) through a bolt assembly. The bracket assembly (3) is arranged between the front housing (1) and the rear housing (2). A main control board (4) is provided between the rear housing (2) and the bracket assembly (3). A plurality of gas sensors (5) are provided on the main control board (4). The bracket assembly (3) includes a bracket main body and a sensor bracket (32), and the gas sensors (5) are accommodated in the sensor bracket (32).

2. The portable gas detection and alarm device according to claim 1, characterized in that, the bracket main body includes a main body plate (311), and support plates (312) extending towards the rear housing (2) are provided on each side of the main body plate (311). The support plates (312) and the main body plate (311) form an open box-shaped structure.

3. The portable gas detection and alarm device according to claim 2, characterized in that, the sensor bracket (32) is arranged at the bottom of the main body plate (311). The sensor bracket (32) includes a plurality of cylinders (321). The number of the cylinders (321) is the same as the number of the gas sensors (5), and the shape of the cylinders (321) is adapted to the gas sensors (5).

4. The portable gas detection and alarm device according to claim 3, characterized in that, a battery (41) is provided between the main body plate (311) and the main control board (4). A main control chip is provided on the main control board (4). A buzzer (42) is provided at the bottom of the main control board (4). A display screen (43) is provided between the main body plate (311) and the front housing (1). A Type-C interface (21) is provided on the rear housing (2), and a dust-proof plug (22) is provided in the Type-C interface (21).

5. The portable gas detection and alarm device according to claim 4, characterized in that, a rubber pad (51) is provided between the gas sensor (5) and the front housing (1). The rubber pad (51) is provided with openings having the same number as the gas sensors (5). The front housing (1) is provided with air inlets having the same number as the gas sensors (5), and a screen (52) is provided on the air inlets.

6. The portable gas detection and alarm device according to claim 5, characterized in that, the gas sensors (5) include an oxygen sensor, a hydrogen sulfide sensor, a carbon monoxide sensor and a combustible sensor.

7. The portable gas detection and alarm device according to claim 1, characterized in that, an indicator light epoxy strip (11) is provided on the outer side of the front housing (1), a lamp control board (12) is provided on the inner side of the front housing (1), and an LED lamp (13) is provided on the lamp control board (12).

8. The portable gas detection and alarm device according to claim 1, characterized in that, a back clip (23) is provided on the side of the rear housing (2) facing away from the front housing (1).

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