Laser poisonous and harmful gas detector with automatic calibration reminding function
By introducing an automatic calibration reminder function into the laser toxic and harmful gas detector, and using a controller and solenoid valve to automatically control the gas flow, the problem of tedious and inaccurate manual calibration is solved, and the accurate calibration and safe detection of the sensor are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-20
AI Technical Summary
Existing laser gas detectors require regular manual calibration, which is cumbersome and susceptible to human error, leading to inaccurate test results.
A laser toxic and harmful gas detector with automatic calibration reminder function was designed. By installing a calibration mechanism, the gas flow into the detector is automatically controlled by a controller and a solenoid valve to simulate a targetless gas state, detect the laser intensity in the optical path and adjust the sensor parameters to ensure measurement accuracy.
It enables automatic calibration alerts when sensor accuracy deviates, improving the accuracy and reliability of detection results, preventing misjudgments, and ensuring user safety.
Smart Images
Figure CN224019646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas detection technology, specifically a laser toxic and harmful gas detector with automatic calibration reminder function. Background Technology
[0002] In recent years, gas leak accidents have occurred frequently, posing a significant threat to human life and property safety. Although conventional gas detectors can detect toxic and harmful gases, they suffer from drawbacks such as low detection accuracy, cumbersome calibration, and complex operation. The introduction of automatic calibration functions is of great significance for improving the accuracy and reliability of detectors.
[0003] Existing laser gas detectors use laser technology and have advantages such as high detection sensitivity, fast response speed, and less interference. However, in practical applications, the equipment needs to be calibrated regularly to ensure the accuracy of the detection results. Existing calibration methods mainly rely on manual operation, which is cumbersome, time-consuming, and labor-intensive, and is easily affected by human factors, leading to inaccurate calibration. Therefore, a laser toxic and harmful gas detector with automatic calibration reminder function is proposed. Utility Model Content
[0004] In view of this, the present invention provides a laser toxic and harmful gas detector with automatic calibration reminder function to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.
[0005] The technical solution of this utility model is implemented as follows: a laser toxic and harmful gas detector with automatic calibration reminder function includes a main body and a calibration mechanism. The calibration mechanism is installed on one side of the main body. The main body includes a detector body. The calibration mechanism includes a fixing plate. The fixing plate is fixedly connected to the outer side wall of the detector body. An arc-shaped fixing groove is opened on one side of the fixing plate. A gas tank is provided inside the arc-shaped fixing groove. The gas outlet of the gas tank is connected to a gas supply pipe. An air inlet pipe is connected to the bottom of the detector body. One end of the gas supply pipe is connected to one end of the air inlet pipe. A warning light is fixedly connected to the upper surface of the fixing plate.
[0006] More preferably, the bottom of the detector body is connected to an air outlet pipe.
[0007] More preferably, the bottom of the detector body is symmetrically and fixedly connected with two support frames.
[0008] More preferably, a valve is installed at one end of the gas outlet of the gas tank.
[0009] More preferably, a solenoid valve is installed on the outside of the gas pipeline.
[0010] More preferably, a controller is mounted on the upper surface of the fixing plate.
[0011] The present invention has the following advantages due to the adoption of the above technical solution:
[0012] This novel laser hazardous gas detector features an automatic calibration reminder function. When the sensor accuracy deviates from the set range, it promptly prompts the user to perform calibration, ensuring the accuracy and reliability of the detection results. This provides users with more precise hazardous gas monitoring data and effectively prevents the risk of misjudgment caused by sensor drift, thus protecting user safety.
[0013] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a structural diagram of the present invention;
[0016] Figure 2 This utility model Figure 1 Another perspective on the structure diagram;
[0017] Figure 3 This is a structural diagram of the main body and fixing plate of this utility model.
[0018] Reference numerals: 1. Main body; 11. Detector body; 12. Support frame; 13. Air inlet pipe; 14. Air outlet pipe; 2. Calibration mechanism; 21. Fixing plate; 22. Arc-shaped fixing groove; 23. Controller; 24. Gas tank; 25. Valve; 26. Gas supply pipe; 27. Solenoid valve; 28. Warning light. Detailed Implementation
[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0021] like Figure 1-3 As shown, this utility model embodiment provides a laser toxic and harmful gas detector with automatic calibration reminder function, including a main body 1 and a calibration mechanism 2. The calibration mechanism 2 is installed on one side of the main body 1. The main body 1 includes a detector body 11. The calibration mechanism 2 includes a fixing plate 21. The fixing plate 21 is fixedly connected to the outer side wall of the detector body 11. An arc-shaped fixing groove 22 is opened on one side of the fixing plate 21. A gas tank 24 is provided inside the arc-shaped fixing groove 22. The gas outlet of the gas tank 24 is connected to a gas supply pipe 26. An air inlet pipe 13 is connected to the bottom of the detector body 11. One end of the gas supply pipe 26 is connected to one end of the air inlet pipe 13. A warning light 28 is fixedly connected to the upper surface of the fixing plate 21.
[0022] In one embodiment, the bottom of the detector body 11 is connected to an exhaust pipe 14; the exhaust pipe 14 is used to discharge the gas inside the detector body 11.
[0023] In one embodiment, two support frames 12 are symmetrically fixedly connected to the bottom of the detector body 11; the support frames 12 support the detector body 11.
[0024] In one embodiment, a valve 25 is installed at one end of the gas outlet of the gas tank 24; the valve 25 controls the closing of the gas tank 24.
[0025] In one embodiment, a solenoid valve 27 is installed on the outside of the gas pipeline 26; the solenoid valve 27, in conjunction with the controller 23, automatically controls the connection of the gas pipeline 26.
[0026] In one embodiment, a controller 23 is mounted on the upper surface of the fixing plate 21; the solenoid valve 27 is controlled by the settings of the controller 23.
[0027] When this invention is in operation: First, the controller 23 controls the solenoid valve 27, which opens the gas supply pipe 26 to introduce pure zero-point gas, such as nitrogen or clean air. The gas is discharged into the inlet pipe 13 through the gas supply pipe 26, and then enters the detector body 11 through the inlet pipe 13. The gas flows through the detection optical path to simulate the absence of target gas. The laser is emitted and passes through the zero-point gas. The optical sensor of the detector body 11 detects parameters such as the intensity of the laser and measures the zero-point signal based on this. The detector body 11 compares the measured zero-point signal with the preset zero-point reference value. If there is a deviation, an alarm light 28 is used to remind the user. Then, the internal parameters of the detector body 11 are adjusted according to the deviation parameters to make the zero-point measurement value match the reference value, thereby ensuring the accuracy of the instrument in the absence of target gas and laying the foundation for subsequent accurate measurement of target gas concentration.
[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A laser toxic and harmful gas detector with automatic calibration reminder function, characterized in that: The instrument includes a main body (1) and a calibration mechanism (2). The calibration mechanism (2) is installed on one side of the main body (1). The main body (1) includes a detector body (11). The calibration mechanism (2) includes a fixing plate (21). The fixing plate (21) is fixedly connected to the outer side wall of the detector body (11). An arc-shaped fixing groove (22) is provided on one side of the fixing plate (21). A gas tank (24) is provided inside the arc-shaped fixing groove (22). The gas outlet of the gas tank (24) is connected to a gas supply pipe (26). An air inlet pipe (13) is connected to the bottom of the detector body (11). One end of the gas supply pipe (26) is connected to one end of the air inlet pipe (13). A warning light (28) is fixedly connected to the upper surface of the fixing plate (21).
2. The laser toxic and harmful gas detector with automatic calibration reminder function according to claim 1, characterized in that: The bottom of the detector body (11) is connected to an air outlet pipe (14).
3. The laser toxic and harmful gas detector with automatic calibration reminder function according to claim 1, characterized in that: The bottom of the detector body (11) is symmetrically fixedly connected to two support frames (12).
4. The laser toxic and harmful gas detector with automatic calibration reminder function according to claim 1, characterized in that: A valve (25) is installed at one end of the gas outlet of the gas tank (24).
5. The laser toxic and harmful gas detector with automatic calibration reminder function according to claim 1, characterized in that: A solenoid valve (27) is installed on the outside of the gas pipeline (26).
6. The laser toxic and harmful gas detector with automatic calibration reminder function according to claim 1, characterized in that: The controller (23) is mounted on the upper surface of the fixing plate (21).