A portable single gas alarm

Abstract

The utility model discloses a portable single gas alarm, including detector main part, filter disc box and initiative detection spare. The detector main part inside integrated with gas analysis treater, power module and controller, is equipped with display panel on the surface, and the one end detachably installs the filter screen. Initiative detection spare fixed mounting is in the inside of detector main part, including cylinder seat, motor and the axial flow rotor rotation mounting in the inside of cylinder seat, and the motor is fixed in one end of cylinder seat, is used for driving axial flow rotor rotation. The utility model discloses through initiative collection gas sample and carries out real -time detection, has improved detection sensitivity and response speed significantly, strengthens the adaptability and practicality of device, solves the problem of passive detection mode, limited protection performance and inconvenient function regulation in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of gas alarm technology, specifically a portable single gas alarm. Background Technology

[0002] Currently, portable gas detectors are widely used in industrial production, environmental monitoring, and personal protection to detect and alarm on the concentration of toxic, harmful, or flammable gases. Existing portable gas detectors typically employ a passive diffusion detection principle, relying on the natural diffusion of gas molecules from the air into the sensor area, where they are then detected and analyzed by the gas sensor.

[0003] Existing passive diffusion alarms generally consist of a detector body, a gas sensor, a control circuit, and a display or alarm module. Their structure is relatively simple and can meet basic detection and alarm functions. However, because these devices lack an active air intake mechanism, the entry of gas samples relies entirely on the natural flow and diffusion of gas in the environment, resulting in a slow detection response speed. When airflow in the detection environment is obstructed or when there is a distance between the detection point and the leak source, the gas sensor often cannot obtain a valid sample in a timely manner, leading to detection delays or even missed alarms.

[0004] Furthermore, traditional portable gas detectors have shortcomings in their protective design. Most products only have a simple filter at the air inlet of the casing. Although this can block some particulate matter, in high humidity or dusty environments, moisture or fine particles can still enter the sensor detection chamber, causing the sensor's detection value to drift or fail, affecting the accuracy and reliability of the detection. At the same time, most existing portable detectors have fixed alarm modes, making it difficult for users to flexibly adjust the detection sensitivity or alarm threshold according to different application scenarios, resulting in poor adaptability.

[0005] In view of this, we have studied and improved upon the existing problems to provide a portable single gas alarm, aiming to solve the current problems and improve its practical value through this technology. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a portable single gas alarm, comprising a detector body, a filter box, and an active detection component. The detector body integrates a gas analysis processor, a power module, and a controller. The active detection component is fixedly installed inside the detector body. A filter screen is detachably installed at one end of the detector body, and a display panel is provided on the surface of the detector body. The active detection component includes a cylinder base, a motor, and an axial rotor rotatably installed inside the cylinder base. The motor is fixed to one end of the cylinder base and drives the axial rotor to rotate. The surface of the cylinder base has an air inlet and an exhaust port facing the filter screen. A gas sensor is fixedly installed inside the air inlet, and the filter box is detachably installed inside the air inlet.

[0008] Specifically, this structure can generate airflow by driving an axial rotor with a motor, allowing air samples to enter the cylinder seat through the filter box, and then be discharged from the exhaust port after being detected by a gas sensor, thereby realizing the active collection and detection of air samples and improving detection sensitivity and response speed.

[0009] In a preferred example, the filter cartridge includes a filter box and a water-proof and breathable membrane structure located inside the filter box. The filter box is disc-shaped and has threads on its outer periphery that are adapted to the inner side of the air inlet for detachable connection of the filter cartridge.

[0010] Specifically, this structure can effectively block water vapor and particulate matter, preventing them from entering the cylinder seat and gas sensor, thereby maintaining the cleanliness of the detection environment and facilitating the disassembly and replacement of the filter box, thus improving maintenance convenience.

[0011] In a preferred example, the axial rotor is an axial impeller structure with a coupling at one end connected to the output end of the motor. When the motor drives the axial rotor to rotate, it can draw external air into the air inlet from the filter box and discharge it from the exhaust port.

[0012] Specifically, this structure can form a stable airflow circulation, enabling the gas sensor to detect the incoming air sample in real time, thus improving the real-time performance and reliability of the detection.

[0013] In a preferred example, the display panel is a digital display or an LCD screen structure, used to display the detection data and alarm status information of the gas sensor in real time.

[0014] Specifically, this structure can intuitively reflect gas detection values ​​and equipment status, making it easy for users to quickly assess environmental safety conditions.

[0015] In a preferred example, the filter is an arc-shaped porous metal mesh structure that is detachably mounted at one end of the detector body.

[0016] Specifically, this structure can prevent large particles from directly entering the exhaust port, thus ensuring airflow while further improving the cleanliness of the detection channel.

[0017] In a preferred example, the motor is a miniature brushless motor and is electrically connected to the controller. The controller can adjust the motor speed, thereby flexibly controlling the airflow.

[0018] Specifically, this structure can adjust the gas sampling volume according to different detection environments, improving the adaptability of the device in various application scenarios.

[0019] In a preferred example, the outer surface of the detector body is provided with operation buttons, which are electrically connected to the controller and are used to switch display modes, adjust alarm thresholds, or reset the device.

[0020] Specifically, the structure can provide a variety of interactive functions, allowing users to flexibly adjust device parameters as needed, thereby improving the operability and practicality of the device.

[0021] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by setting an active detection element in the detector body and using a motor to drive an axial flow rotor to form a stable airflow, active collection of air samples is achieved, enabling the gas sensor to obtain effective gas samples in a short time, significantly improving the sensitivity and response speed of gas detection, and overcoming the slow response of traditional detection methods that rely on natural diffusion.

[0022] 2. In this invention, the dual filtration design of the filter box and filter screen effectively blocks particulate matter and water vapor from entering the detection channel, ensuring the detection accuracy and stability of the gas sensor. Simultaneously, the detector body, along with the display panel and operation buttons, enables real-time display of detection data and threshold adjustment. Combined with the controller's control of the motor speed, this makes detection and alarm more intuitive, flexible, and reliable, enhancing the overall practicality of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the end structure of one embodiment of the present invention; Figure 3 This is a schematic diagram of the active detection component structure according to an embodiment of the present invention; Figure 4 This is an exploded view of the active detection component according to an embodiment of the present invention.

[0024] Figure label: 100. Detector body; 110. Display panel; 120. Filter screen; 200. Filter box; 300. Active detection component; 310. Cylinder seat; 320. Motor; 330. Axial rotor; 340. Gas sensor; 311. Inlet; 312. Exhaust port. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a portable single gas alarm.

[0028] Combination Figures 1-4 As shown, the present invention provides a portable single gas alarm, including a detector body 100, a filter box 200, and an active detection element 300.

[0029] The detector body 100 integrates a gas analysis processor, a power module, and a controller to provide gas signal analysis, power supply, and overall logic control. An active detection element 300 is fixedly installed inside the detector body 100. A filter screen 120 is detachably installed at one end of the detector body 100, and a display panel 110 is provided on the surface of the detector body 100.

[0030] The active detection unit 300 includes a cylinder base 310, a motor 320, and an axial rotor 330 rotatably mounted inside the cylinder base 310. The motor 320 is fixedly mounted at one end of the cylinder base 310 and drives the axial rotor 330 to rotate. The surface of the cylinder base 310 is provided with an air inlet 311 and an exhaust port 312, wherein the exhaust port 312 faces the filter screen 120. A gas sensor 340 is fixedly mounted inside the air inlet 311 for detecting the gas concentration in the air sample. A filter box 200 is detachably mounted inside the air inlet 311 for preliminary filtration of air before it enters the detection area.

[0031] With the above structure, the motor 320 drives the axial rotor 330 to generate airflow. After the air sample is filtered by the filter box 200, it enters the cylinder seat 310 from the air inlet 311. After being detected by the gas sensor 340, it is discharged from the exhaust port 312, forming an airflow cycle, thereby realizing the active collection and detection of air samples.

[0032] In this embodiment, the filter cartridge 200 includes a filter box and a water-proof and breathable membrane structure located inside the filter box. The filter box is disc-shaped and has threads on its outer periphery, which are adapted to the threads on the inner side of the air inlet 311, thereby enabling the filter cartridge 200 to be detachably installed.

[0033] Specifically, this structure not only ensures that the air sample is effectively filtered before entering the air inlet 311, preventing water vapor and particulate matter from entering the cylinder seat 310, but also facilitates the disassembly and replacement of the filter box 200, improving the ease of maintenance of the device.

[0034] In this embodiment, the axial rotor 330 has an axial impeller structure, with a connecting shaft at one end connected to the output end of the motor 320. When the motor 320 drives the connecting shaft to rotate the axial rotor 330, a stable airflow is formed, drawing external air from the filter box 200 into the cylinder seat 310 and discharging it through the exhaust port 312.

[0035] Specifically, this structure enables forced airflow, allowing the gas sensor 340 to detect incoming air samples in real time, significantly improving detection sensitivity and response speed.

[0036] In this embodiment, the display panel 110 is a digital display screen or liquid crystal display screen, which is fixedly installed on the surface of the detector body 100 and is used to display the detection data and alarm status information of the gas sensor 340 in real time.

[0037] Specifically, this structure provides users with intuitive data displays and status prompts, improving the device's visualization level and ease of use.

[0038] In this embodiment, the filter screen 120 is an arc-shaped porous metal mesh structure, which is detachably installed at one end of the detector body 100. The filter screen 120 can block external particles from directly entering the exhaust port 312, thereby preventing particles from entering and causing damage to the axial rotor 330.

[0039] Specifically, this structure avoids damage to the cylinder block 310 and gas sensor 340 from external dust and particles through physical isolation, thus extending the service life of the device.

[0040] In this embodiment, the motor 320 is a miniature brushless motor and is electrically connected to the controller. By adjusting the speed of the motor 320 through the controller, the speed of the axial rotor 330 can be flexibly controlled, thereby changing the airflow.

[0041] Specifically, this structure can adjust the gas sampling volume according to different detection needs, improving the adaptability of the device in different detection scenarios.

[0042] In this embodiment, the outer surface of the detector body 100 is provided with operation buttons, which are electrically connected to the controller. Users can use the operation buttons to switch display modes, adjust alarm thresholds, and reset the device.

[0043] Specifically, this structure enhances the interactivity and flexibility of the device, allowing users to adjust device parameters according to the actual usage environment, thus improving the practicality of the portable single gas alarm.

[0044] Working principle and usage process of this utility model: This invention achieves active collection, detection, and alarm notification of target gas by setting an active detection element 300 in the detector body 100 and combining it with a filter box 200, a filter screen 120, and a gas sensor 340.

[0045] The motor 320 is installed at one end of the cylinder base 310, and its output end drives the axial rotor 330 to rotate at high speed through the coupling; the axial rotor 330 generates airflow suction when rotating, which draws external air from the filter box 200 through the air inlet 311. Air flows through the location of gas sensor 340, and gas sensor 340 detects the concentration of the target gas in the air in real time; After detection, the airflow is guided through the inner cavity of the cylinder seat 310 to the exhaust port 312, and then discharged through the filter screen 120, forming an air circulation; The gas analysis processor inside the detector body 100 receives the detection signal from the gas sensor 340. After processing, when the detected value exceeds the preset threshold, the controller drives the display panel 110 to output the alarm status and simultaneously activates the audible and visual alarm function to remind the user.

[0046] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A portable single-gas alarm, characterized in that, include: The detector body (100), filter box (200), and active detection element (300) are included. The detector body (100) integrates a gas analysis processor, a power module, and a controller. The active detection element (300) is fixedly installed inside the detector body (100). A filter screen (120) is detachably installed at one end of the detector body (100). A display panel (110) is provided on the surface of the detector body (100). The active detection element (300) includes a cylinder base (310) and a motor (320). 20) and an axial rotor (330) rotatably mounted inside the cylinder seat (310), the motor (320) is fixed to one end of the cylinder seat (310) and is used to drive the axial rotor (330) to rotate; the surface of the cylinder seat (310) is provided with an air inlet (311) and an exhaust port (312) facing the filter (120), a gas sensor (340) is fixedly mounted inside the air inlet (311), and the filter box (200) is detachably mounted inside the air inlet (311).

2. The portable single gas alarm according to claim 1, characterized in that, The filter box (200) includes a filter box and a water-proof and air-permeable membrane structure located inside the filter box. The filter box is disc-shaped and has threads on its outer periphery that are adapted to the inner side of the air inlet (311) for detachable connection with the air inlet (311).

3. A portable single gas alarm according to claim 1, characterized in that, The axial rotor (330) has an axial blade structure and a coupling at one end that is connected to the output end of the motor (320). It is used to introduce airflow from the filter box (200) and output it from the exhaust port (312) during rotation.

4. A portable single-gas alarm according to claim 1, characterized in that, The display panel (110) is a digital display screen or an LCD screen, used to display the detection data and alarm status information of the gas sensor (340) in real time.

5. A portable single gas alarm according to claim 1, characterized in that, The filter (120) is an arc-shaped porous metal mesh structure, which can be detachably installed at one end of the detector body (100) to block external particles from entering the exhaust port (312).

6. A portable single gas alarm according to claim 1, characterized in that, The motor (320) is a miniature brushless motor and is electrically connected to the controller. The speed is adjusted by the controller to change the gas flow rate.

7. A portable single gas alarm according to claim 1, characterized in that, The outer surface of the detector body (100) is provided with operation buttons, which are electrically connected to the controller and are used to switch display modes, adjust alarm thresholds, or reset the device.

Images