Portable miniature gas alarm instrument

Abstract

The utility model discloses a portable miniature gas alarm instrument which comprises a body, the body is of a rectangular cavity structure with four corners and adjacent sides provided with round corners, a trumpet-shaped round groove is embedded in the front side of the body, the body comprises a front shell, a rear shell, a main control circuit board and a hook, the front shell and the rear shell are buckled into a whole, and the main control circuit board is connected with the hook. A plurality of alarm indicating lamps are arranged on the upper portion of the front side of the main control circuit board, a buzzer, a sensor and a knob switch are arranged on the front side of the main control circuit board, a DC socket is arranged on the lower portion of the front side of the main control circuit board, and the sensor is arranged corresponding to the circular groove. According to the utility model, the hook is arranged on the rear side of the body, so that the device can be worn on work clothes of a detector, detection is greatly facilitated, the device is simple in structure, small in size, convenient to wear and use, safe, reliable and low in cost, and the device is provided with a combustible gas level, an over-safety line level and an explosion level for monitoring. And the combustible gas condition in the position range of the firefighter can be monitored in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of production safety risk target detection, and particularly relates to a wearable micro gas alarm device. Background Art

[0002] A gas alarm is a gas leakage detection and alarm instrument. With the rapid expansion of the application fields of combustible gases, while bringing great convenience to people's production and life, due to its flammable and explosive characteristics, the accident rate has also increased accordingly, posing a great threat to people's lives and property safety. When combustible or toxic gases leak, or when the gas alarm detects that the gas concentration reaches the critical point set by the explosion or poisoning alarm, the alarm will emit an alarm signal to remind the workers to take safety measures and drive the exhaust, cut-off, and sprinkler systems to prevent explosion, fire, and poisoning accidents, thereby ensuring safe production.

[0003] The existing combustible gas alarms have complex structures, large volumes, are heavy, not convenient to carry, inconvenient to use and costly, and cannot effectively guarantee the lives and property safety of workers.

[0004] Therefore, it is necessary for engineering and technology in this field to develop a micro gas alarm that is simple in structure, convenient to use, safe and reliable, and low in cost and can be worn on the body to avoid accidents. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a wearable micro gas alarm that is simple in structure, small in size, convenient to wear, easy to use, safe and reliable, and low in cost.

[0006] To solve the above technical problem, the technical solution of the utility model is as follows:

[0007] A wearable micro gas alarm, comprising: a main body, the main body is a rectangular cavity structure with rounded corners at four corners and adjacent sides, a horn-shaped circular groove is embedded on the front side of the main body, the main body includes a front shell, a rear shell, a main control circuit board and a hook, the front shell and the rear shell are buckled together as a whole, the hook is arranged on the outer side of the rear shell, the main control circuit board is movably arranged inside the main body, a plurality of alarm indicator lights are arranged on the upper part of the front side of the main control circuit board, a buzzer, a sensor and a knob switch are respectively arranged on the front side of the main control circuit board, a DC socket is arranged on the lower part of the front side of the main control circuit board, the sensor is arranged corresponding to the circular groove, and the buzzer, the sensor, the knob switch, the plurality of alarm indicator lights and the DC socket are all electrically connected to the main control circuit board.

[0008] In the above structure, the main control circuit board includes a control circuit, a microprocessor, and a wireless transmission module disposed on the main control circuit board. The buzzer, the sensor, and the knob switch are spaced apart on the main control circuit board.

[0009] In the above structure, a plurality of circular holes are provided through the upper part of the front shell, and the plurality of circular holes are correspondingly arranged for a plurality of the alarm indicator lights. An installation hole is provided corresponding to the DC socket at the lower part of the front shell, and the DC socket can be any one including a circular DC socket and a TYPE-C socket.

[0010] In the above structure, a plurality of sound guiding holes and knobs are provided corresponding to the buzzer and the knob switch on the front side of the front shell. The plurality of sound guiding holes are arranged in an array. Each of the sound guiding holes and the knob is located on both sides of the circular groove. The knob is movably connected to the knob switch through a connection hole provided on the front shell, and a plurality of connection posts are provided inside the front shell.

[0011] In the above structure, a plurality of fixing posts are provided corresponding to the plurality of connection posts inside the rear shell. A rectangular groove is embedded on the outer side of the rear shell, and the rectangular groove is matched with the hook. The hook is screwed or riveted to the rear shell.

[0012] In the above structure, a plurality of first fixing holes are provided through the rectangular groove, and the plurality of first fixing holes are matched with second fixing holes provided on the hook. Both the rear shell and the hook are made of plastic materials.

[0013] In the above structure, an energy storage power supply is further included. The energy storage power supply is disposed inside the main body and is located behind the main control circuit board. The energy storage power supply is clamped and fixed through a pressing plate provided at the rear of the main control circuit board, and the energy storage power supply is electrically connected to the main control circuit board.

[0014] In the above structure, the sensor includes at least one of an electrochemical sensor, a catalytic combustion sensor, a photoionization sensor, and an infrared sensor.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By providing a hook at the rear side of the main body, the present utility model can be worn on the work clothes of the detection personnel, which greatly facilitates the detection. The structure of the present utility model is simple, the volume is small, it is convenient to wear, easy to use, safe and reliable. The present utility model is provided with three monitoring gears of combustible gas gear, ultra-safe line gear, and explosion gear, and can monitor the combustible gas condition at the position where the firefighter is located in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an embodiment of a micro gas alarm that can be worn with the body of the present utility model;

[0018] Figure 2 This is a cross-sectional view of an embodiment of a wearable micro gas alarm of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of the main control circuit board in an embodiment of a wearable micro gas alarm of the present utility model;

[0020] Figure 4 This is an exploded view of the structure of an embodiment of a wearable micro gas alarm of the present utility model.

[0021] In the figure, 1 - front shell, 2 - rear shell, 3 - main control circuit board, 4 - hook, 5 - alarm indicator light, 6 - buzzer, 7 - sensor, 8 - rotary switch, 9 - DC socket, 10 - knob. Specific embodiments

[0022] The following further describes the specific embodiments of the present utility model with reference to the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the following various embodiments of the present utility model can be combined with each other as long as they do not conflict with each other.

[0023] As Figures 1-4 shown, a wearable micro gas alarm includes: a body, the body is a rectangular cavity structure with rounded corners at four corners and adjacent sides, a horn-shaped circular groove is embedded on the front side of the body, the body includes a front shell 1, a rear shell 2, a main control circuit board 3 and a hook 4, the front shell 1 and the rear shell 2 are snapped together as a whole, the hook 4 is arranged on the outer side of the rear shell 2, the main control circuit board 3 is movably arranged inside the body, a plurality of alarm indicator lights 5 are arranged on the upper part of the front side of the main control circuit board 3, a buzzer 6, a sensor 7 and a rotary switch 8 are respectively arranged on the front side of the main control circuit board 3, a DC socket 9 is arranged on the lower part of the front side of the main control circuit board 3, the sensor 7 is arranged corresponding to the circular groove, and the buzzer 6, the sensor 7, the rotary switch 8, the plurality of alarm indicator lights 5 and the DC socket 9 are all electrically connected to the main control circuit board 3.

[0024] Specifically, in this embodiment, the front shell 1 and the rear shell 2 are snap-fitted to form a cavity with a positioning and fixed connection structure inside.

[0025] Specifically, in this embodiment, the present utility model has three-level monitoring, and the three levels include a combustible gas level, a super safety line level, and an explosion level, and the combustible gas level, the super safety line level, and the explosion level are set corresponding to the corresponding alarm indicator lights 5.

[0026] In a preferred embodiment of the present utility model, the main control circuit board 3 includes a control circuit, a microprocessor, and a wireless transmission module disposed on the main control circuit board 3. The buzzer 6, the sensor 7, and the knob switch 8 are spaced apart and disposed on the main control circuit board 3.

[0027] Specifically, in this embodiment, the microprocessor, the wireless transmission module, the buzzer 6, the sensor 7, and the knob switch 8 are all electrically connected to the control circuit. The wireless transmission module, the buzzer 6, and the sensor 7 are respectively electrically connected to the microprocessor. The wireless transmission module can promptly send the detected information to the external main console.

[0028] In a preferred embodiment of the present utility model, a plurality of circular holes are provided through the upper part of the front shell 1, and the plurality of circular holes correspond to a plurality of alarm indicator lights 5. An installation hole corresponding to the DC socket 9 is provided at the lower part of the front shell 1. The DC socket 9 can be any one including a circular DC socket and a TYPE-C socket.

[0029] Specifically, in this embodiment, the installation hole is matched with the DC socket 9 corresponding to the main control circuit board 3. The mouth of the front shell 1 can be circumferentially embedded with a first limiting structure having an L-shaped cross-section, and the first limiting structure is matched with a second limiting structure provided at the mouth of the rear shell 2.

[0030] In a preferred embodiment of the present utility model, a plurality of sound guiding holes and a knob 10 are provided corresponding to the buzzer 6 and the knob switch on the front side of the front shell 1. The plurality of sound guiding holes are arranged in an array. Each sound guiding hole and the knob are respectively located on both sides of a circular groove. The knob is movably connected to the knob switch 8 through a connection hole provided on the front shell 1. A plurality of connecting columns are provided inside the front shell 1.

[0031] Specifically, in this embodiment, a plurality of connecting columns and fixing columns for fixing the main control circuit board 3 are provided inside the front shell 1. The main control circuit board 3 is fixed inside the front shell 1 with screws. Installation positions corresponding to the buzzer 6, the sensor 7, and the knob 10 are provided inside and outside the front shell 1. The knob 10 is movably connected to the knob switch 8.

[0032] In a preferred embodiment of the present utility model, a plurality of fixing columns corresponding to the plurality of connecting columns are provided inside the rear shell 2. A rectangular groove is embedded on the outside of the rear shell 2, and the rectangular groove is matched with the hook 4. The hook 4 is screwed or riveted to the rear shell 2.

[0033] Specifically, in another embodiment of the present utility model, both the front shell 1 and the rear shell 2 are made of stainless steel material with a certain thickness. The interiors of the front shell 1 and the rear shell 2 are both designed with an explosion-proof structure, which is specifically made according to customer requirements. The front shell 1 and the rear shell 2 are fixedly connected by screws.

[0034] In a preferred embodiment of the present utility model, a plurality of first fixing holes penetrate through the rectangular groove, and the plurality of first fixing holes are matched with the second fixing holes provided on the hook 4. The rear shell 2 and the hook 4 are both made of plastic materials.

[0035] Specifically, in this embodiment, the front shell 1, the rear shell 2, and the hook 4 are all made of plastic materials. The front shell 1 and the rear shell 2 are connected by screws. The hook 4 can be movably arranged or integrally arranged with the rear shell 2.

[0036] In a preferred embodiment of the present utility model, it further includes an energy storage power supply. The energy storage power supply is arranged inside the body and is located behind the main control circuit board 3. The energy storage power supply is clamped and fixed by a pressing plate provided at the rear of the main control circuit board 3, and the energy storage power supply is electrically connected to the main control circuit board 3.

[0037] Specifically, in this embodiment, the energy storage power supply 10 is any one of new energy batteries including lithium batteries and nickel-metal hydride batteries. The energy storage power supply 10 is electrically connected to a DC socket provided at the lower part of the main control circuit board 3.

[0038] In a preferred embodiment of the present utility model, the sensor 7 includes at least one of an electrochemical sensor, a catalytic combustion sensor, a photoionization sensor, and an infrared sensor.

[0039] Specifically, in this embodiment, the body can be held and carried around, or hung on work clothes to detect the gas concentration at different locations. The portable gas detector integrates a controller and a detector, is small and flexible, and is very convenient to use.

[0040] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A wearable miniature gas alarm, comprising: The main body is a rectangular cavity structure with rounded corners on all four corners and adjacent sides, a trumpet-shaped circular groove is embedded in the front side of the main body, the main body includes a front shell, a rear shell, a main control circuit board and a hook, the front shell and the rear shell are buckled together as a whole, the hook is arranged on the outside of the rear shell, and it is characterized in that the main control circuit board is movably arranged inside the main body, a plurality of alarm indicator lights are arranged on the upper part of the front side of the main control circuit board, a buzzer, a sensor and a knob switch are respectively arranged on the front side of the main control circuit board, a DC socket is arranged on the lower part of the front side of the main control circuit board, the sensor is arranged corresponding to the circular groove, and the buzzer, sensor and knob switch, a plurality of alarm indicator lights, and the DC socket are all electrically connected to the main control circuit board.

2. The wearable miniature gas alarm according to claim 1 is characterized in that: The main control circuit board comprises a control circuit, a microprocessor and a wireless transmission module arranged on the main control circuit board; the buzzer, the sensor and the knob switch are arranged on the main control circuit board at intervals.

3. The wearable miniature gas alarm according to claim 2 is characterized in that: The upper part of the front shell is penetrated by a plurality of circular holes, and the plurality of circular holes are arranged corresponding to the plurality of alarm indicator lights. The lower part of the front shell is provided with mounting holes corresponding to the DC socket, and the DC socket is any one including a circular DC socket and a TYPE-C socket.

4. The wearable miniature gas alarm according to claim 3 is characterized in that: The front side of the front shell is provided with a plurality of sound guide holes and knobs corresponding to the buzzer and the knob switch. The plurality of sound guide holes are arranged in an array. The sound guide holes and the knobs are respectively located on both sides of the circular groove. The knob is movably connected to the knob switch through a connecting hole provided on the front shell. A plurality of connecting columns are provided inside the front shell.

5. The wearable miniature gas alarm according to claim 4 is characterized in that: A plurality of fixing columns are arranged inside the rear shell corresponding to the plurality of connecting columns, and a rectangular groove is embedded in the outer side of the rear shell. The rectangular groove matches the hook, and the hook is screwed or riveted to the rear shell.

6. The wearable miniature gas alarm according to claim 5 is characterized in that: The rectangular groove is provided with a plurality of first fixing holes, and the plurality of first fixing holes match with the second fixing holes provided on the hook. The rear shell and the hook are both made of plastic material.

7. The wearable miniature gas alarm according to claim 1 is characterized in that: It also includes an energy storage power supply, which is arranged inside the main body and located on the rear side of the main control circuit board. The energy storage power supply is fixed by a pressure plate arranged on the rear side of the main control circuit board, and the energy storage power supply is electrically connected to the main control circuit board.

8. The wearable miniature gas alarm according to claim 1 is characterized in that: The sensor includes at least one of an electrochemical sensor, a catalytic combustion sensor, a photoionization sensor and an infrared sensor detector.

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