A household gas alarm entry detection device
The integrated design of the home gas alarm detection device solves the problems of limited functionality and complex operation of existing equipment, achieving high-precision multi-parameter adjustment and automated data recording, thus improving the reliability and convenience of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU ACTION ELECTRONICS JOINT STOCK
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-05
Smart Images

Figure CN224328447U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas detection, and specifically discloses a household gas alarm in-home detection device. Background Technology
[0002] Existing portable detection devices are limited in function, typically supporting only single gas or fixed environmental parameter detection, lacking integrated flow and humidity control capabilities. Furthermore, the sensors in home alarms (such as methane and carbon monoxide alarms) are susceptible to humidity fluctuations, leading to inaccurate test results. Traditional detection methods often rely on manual flow adjustment using pressure reducing valves, resulting in low accuracy and difficulty meeting the stable flow input requirements for alarm calibration. Existing devices are mostly modular designs (such as independent humidity controllers + flow controllers), which are bulky, complex to operate, unsuitable for rapid home or on-site testing, and data recording depends on manual operation, leading to low efficiency and significant errors.
[0003] In view of this, the present invention provides a household gas alarm in-home detection device. By integrating a multi-parameter adjustment module (flow rate, humidity, pressure), an automated data recording function, and a portable design, it provides an easy-to-operate and environmentally adaptable on-site detection device, allowing users to quickly complete performance verification without disassembling the detector, accurately simulate real leak conditions, and ensure the integrity and reliability of the detection data, thereby effectively reducing the safety hazards of gas leaks. Utility Model Content
[0004] This utility model provides a household gas alarm detection device, including an integrated main unit. The integrated main unit includes a flow control module, a humidity adjustment module, a gas cylinder fixing module, and an intelligent control module. The inlet of the flow control module is connected to the gas cylinder, and the outlet is connected to the humidity adjustment module, used to adjust the gas flow rate. The humidity adjustment module is also connected to a telescopic calibration rod, used to adjust the humidity of the gas. The adjusted gas is sent to the alarm device through the telescopic calibration rod. The gas cylinder fixing module is used to fix the gas cylinder. The intelligent control module is connected to the flow control module and the humidity adjustment module, used to adjust the temperature and humidity of the gas to be detected according to temperature and humidity information, and control the flow rate of the gas to be detected into the gas detector.
[0005] Furthermore, the integrated host also includes a rechargeable battery, which powers the flow control module, the humidity control module, and the intelligent control module.
[0006] Furthermore, the humidity control module includes a humidity generator, a humidity sensor, and a gas circulation chamber.
[0007] Furthermore, the humidity adjustment module has an adjustment range of 25-75%RH and an accuracy of ±3%RH.
[0008] Furthermore, the flow control module includes a high-precision flow meter, a regulating valve, and a pressure stabilizing device.
[0009] Furthermore, the flow control module has an adjustment range of 0-1 L / min and an accuracy of ±0.05 L / min.
[0010] Furthermore, it also includes a data recording module, which is connected to the flow control module, the humidity adjustment module and the intelligent control module, and the data recording module has a built-in storage unit.
[0011] Furthermore, the intelligent control module includes a humidity-flow coordination unit, a visual interactive interface, an MCU controller, and a voice broadcast unit.
[0012] Furthermore, the visual interactive interface includes an operation prompt interface, a gas parameter interface, a system time interface, a power information interface, and a three-color indicator interface.
[0013] Furthermore, the gas to be detected is methane, propane, and / or carbon monoxide.
[0014] Advantages of this utility model:
[0015] By integrating gas flow, humidity control, and data recording functions into a single portable device through integrated design, the number of testing steps is reduced.
[0016] It has wide environmental adaptability, supports multi-gas detection, and has a wide adjustable humidity range to meet the needs of complex field environments.
[0017] Parameter settings are achieved through button and voice interaction, data is automatically recorded, and test reports are generated, reducing manual intervention. The gas cylinder and humidity control module adopt a quick-release structure for easy replacement and maintenance. Attached Figure Description
[0018] Figure 1 This is an exemplary schematic diagram of a household gas alarm in-home detection device according to the present invention;
[0019] Attached reference numerals: 1-Ziper mesh bag, 2-Regulating valve, 3-Gas cylinder valve, 4-Gas cylinder, 5-Integrated main unit, 6-Gas cylinder fixing module, 7-Telescopic rod, 8-Humidity regulating module. Detailed Implementation
[0020] The specific implementation method is described below with reference to the accompanying drawings.
[0021] Figure 1 This is an exemplary schematic diagram of a household gas alarm in-home detection device according to the present invention. Figure 1As shown, this invention provides a household gas alarm detection device that slowly releases humidity through a humidity adjustment module (response time ≤ 5 minutes) and automatically corrects gas flow and concentration parameters based on real-time temperature and humidity data. It includes an integrated main unit comprising a flow control module, a humidity adjustment module, a gas cylinder fixing module, and an intelligent control module, weighing ≤ 6.8 kg, and is portable for outdoor use.
[0022] The flow control module has its inlet connected to the gas cylinder and its outlet connected to the humidity regulating module, used to adjust the gas flow rate and resolve detection interference caused by environmental factors in different regions. The gas cylinder refers to a standard gas cylinder containing standard gas.
[0023] In some embodiments, the gas to be detected is methane, propane, and / or carbon monoxide.
[0024] In some embodiments, the flow control module includes a high-precision flow meter, a regulating valve, and a pressure stabilizing device, supporting real-time flow detection and automatic adjustment. The adjustment range of the flow control module is 0-1 L / min, and the accuracy is ±0.05 L / min.
[0025] The humidity control module is also connected to a telescopic calibration rod for adjusting the humidity of the gas. In some embodiments, the humidity control module includes a humidity generator, a humidity sensor, and a gas circulation chamber to achieve dynamic adjustment of the test gas humidity. The adjustment range of the humidity control module is 25-75%RH, with an accuracy of ±3%RH. The flow meter (0-1L / min, accuracy ±0.05L / min) and humidity control valve (25-75%RH, accuracy ±5%RH) are adjusted via mechanical knobs to achieve accurate simulation of gas parameters under complex environments. The humidity control module slowly releases humidity via mechanical knobs to avoid sensor sensitivity drift under high humidity conditions. Built-in temperature and humidity sensors correct flow and concentration parameters in real time to ensure that the detection results are not affected by ambient temperature.
[0026] The adjusted gas is delivered to the alarm device via the telescopic calibration rod. The flow rate is adjusted first, followed by the humidity. The telescopic calibration rod connects to the gas processed by the device, and then delivers the processed gas to the home alarm device installed in a fixed location. The main unit module can adjust the gas according to specific needs to achieve the desired gas state for detection. The telescopic calibration rod avoids the need to disassemble the home alarm device, enabling in-situ detection.
[0027] The gas cylinder fixing module is used to fix the gas cylinder.
[0028] The intelligent control module is connected to the flow control module and the humidity adjustment module, and is used to adjust the temperature and humidity of the gas to be detected according to temperature and humidity information, and control the flow rate of the gas into the gas detector. The gas detector is used to detect the composition of the gas. A visual interactive interface enables efficient operation and debugging of the device. In some embodiments, the intelligent control module includes a humidity-flow coordination unit, a visual interactive interface, an MCU controller, and a voice broadcast unit. The output gas status can be automatically adjusted according to preset parameters as needed. It supports voice broadcast alarms and operation prompts, and the display screen shows gas parameters, system time, and power information in real time. Three-color indicator lights (red / yellow / green) indicate the alarm, fault, and normal status of the device, respectively.
[0029] In some embodiments, the visual interactive interface includes an operation prompt interface, a gas parameter interface, a system time interface, a power information interface, and a three-color indicator interface.
[0030] In some embodiments, the integrated host further includes a rechargeable battery for powering the flow control module, the humidity control module, and the intelligent control module.
[0031] In some embodiments, a data recording module is also included. This data recording module is connected to the flow control module, the humidity control module, and the intelligent control module. The data recording module has a built-in storage unit, improving the convenience, efficiency, and accuracy of in-home testing. The storage unit can store ≥6000 data points (including gas type, concentration, temperature, response time, etc.) with a storage period of ≥30 days and supports SD card expansion.
[0032] The equipment assembly process includes equipment assembly and initialization, and parameter setting and calibration. Equipment assembly and initialization includes: connecting the gas cylinder to the humidity control instrument box, using the telescopic calibration rod to connect the outlet of the humidity control instrument box to the detector under test, and ensuring the gas pipe joint is sealed. Parameter setting and calibration includes gas parameter setting and environmental parameter calibration. Gas parameter setting includes: gas type: select methane (CH4), propane (C3H8), or carbon monoxide (CO) using the "Set" key; gas concentration: set the target concentration using the "+" / "-" keys (supported units: ppm, %LEL, %VOL); charging time: adjustable range 0-10 minutes (accuracy ±1 second). Environmental parameter calibration includes: flow rate adjustment: rotate the flow meter knob, observe the screen display value, and adjust to 0.6±0.1L / min (accuracy ±0.05L / min); humidity adjustment: rotate the humidity control valve, adjust to the target value (accuracy ±3%RH) according to the real-time humidity value on the screen (25-75%RH). Where L represents the volume unit liter, RH represents the relative humidity, and min represents the time unit minute.
[0033] The testing process includes: starting the inflation function; pressing the left button on the standby screen to enter the "inflation" function, the device automatically records the inflation time, ambient temperature and humidity, and gas concentration, and displays the remaining inflation time in real time. Alarm response testing includes: observing whether the detector under test triggers the alarm within the set time, and the device automatically records the alarm response time (accuracy ±1 second).
[0034] Data storage and export include: after the test is completed, the interface displays the inflation results (gas type, concentration, response time, etc.), and the data is automatically saved to the built-in storage unit; inserting an SD card allows exporting historical data (supports CSV format) and generating a test report.
[0035] This utility model has the following advantages and beneficial effects:
[0036] Improved flow control accuracy
[0037] Flow rate adjustment accuracy: ±0.05L / min, ensuring stable gas flow rate, reducing detection errors caused by flow rate fluctuations, and improving the accuracy of combustible gas concentration simulation.
[0038] Flow range: 0-1L / min, covering the typical flow rate range of household gas leaks, and adaptable to the test requirements of different alarm response thresholds.
[0039] Optimized humidity regulation capability
[0040] Humidity adjustment range: 25-75%RH (5-55℃), simulating high humidity kitchen or dry environment to ensure the performance verification of the detector under different humidity conditions, or to maintain the same humidity for detection.
[0041] Humidity control accuracy: ±3%RH, ensuring consistency of test environment parameters and avoiding the impact of humidity deviation on sensor sensitivity.
[0042] Data recording is efficient and reliable.
[0043] Storage capacity: ≥6000 data entries (including gas type, concentration, response time, etc.), supporting continuous recording for 30 days without interruption, meeting long-term detection needs.
[0044] Storage scalability: Supports SD card storage, and data can be exported for analysis, improving the traceability of test results and management efficiency.
[0045] Improved environmental adaptability
[0046] Operating temperature range: -10℃~55℃, adaptable to extreme temperature environments, ensuring stable operation in outdoor and complex scenarios.
[0047] Tracheal weather resistance: The equipment can withstand temperatures of -30 to 55°C without cracking, with a service life of ≥5 years, reducing maintenance frequency and costs.
[0048] Improved ease of use
[0049] Equipment weight: ≤6.8kg (excluding gas cylinder), significantly more portable than traditional laboratory equipment.
[0050] Response time recording: Automatically records the alarm response time (accuracy ±1s) to quantitatively evaluate detector performance.
Claims
1. A household gas alarm detection device, characterized in that, It includes an integrated host, which includes a flow control module, a humidity adjustment module, a gas cylinder fixing module, and an intelligent control module; The inlet of the flow control module is connected to the gas cylinder, and the outlet is connected to the humidity adjustment module, which is used to adjust the gas flow rate. The humidity adjustment module is also connected to the telescopic calibration rod to adjust the humidity of the gas. The humidity adjustment module has a built-in temperature and humidity sensor to correct the flow rate and concentration parameters in real time, ensuring that the detection results are not affected by the ambient temperature. The adjusted processing gas is sent to the alarm device via the telescopic calibration rod. The gas cylinder fixing module is used to fix the gas cylinder; The intelligent control module is connected to the flow control module and the humidity adjustment module, and includes a humidity-flow coordination unit, a visual interactive interface, an MCU controller and a voice broadcast unit. It automatically adjusts the output gas state according to preset parameters and controls the flow rate of the gas to be detected into the gas detector.
2. The in-home gas alarm detection device according to claim 1, characterized in that, The integrated host also includes a rechargeable battery, which powers the flow control module, the humidity control module, and the intelligent control module.
3. The in-home gas alarm detection device according to claim 1, characterized in that, The humidity control module includes a humidity generator, a humidity sensor, and a gas circulation chamber.
4. The in-home gas alarm detection device according to claim 3, characterized in that, The humidity control module has an adjustment range of 25-75%RH and an accuracy of ±3%RH.
5. The in-home gas alarm detection device according to claim 1, characterized in that, The flow control module includes a high-precision flow meter, a regulating valve, and a pressure stabilizing device.
6. The in-home gas alarm detection device according to claim 1, characterized in that, The flow control module has an adjustment range of 0-1 L / min and an accuracy of ±0.05 L / min.
7. The in-home gas alarm detection device according to claim 1, characterized in that, It also includes a data recording module, which is connected to the flow control module, the humidity adjustment module and the intelligent control module, and the data recording module has a built-in storage unit.
8. The in-home gas alarm detection device according to claim 1, characterized in that, The visual interactive interface includes an operation prompt interface, a gas parameter interface, a system time interface, a power information interface, and a three-color indicator interface.
9. The in-home gas alarm detection device according to claim 1, characterized in that, The gas to be detected is methane, propane, and / or carbon monoxide.