Gas ring calibration box

Abstract

This utility model relates to the field of gas annular calibration box technology, and discloses a gas annular calibration box, including a calibration box, on which a detector placement module is provided. A support plate is fixedly connected to the concave surface of the detector placement module. A screw is fixedly connected to the support plate via a motor. A moving block is threadedly connected to the screw. Through the design of the angle adjustment component inside the device, the comprehensiveness and accuracy of detection can be effectively improved. Existing technology fixes the detector in a single position, making it difficult to capture the uneven gas concentration distribution inside the annular box. The adjustable angle design allows the detector to contact the delivered gas at different positions during the detection process, simulating the complex scenario of combustible gas leaking from various directions in actual applications. It can accurately obtain the detector's response performance to gas in various directions, avoiding performance misjudgment caused by a single detection direction, and effectively improving the comprehensiveness and accuracy of detection.

Description

Technical Field

[0001] This utility model relates to the technical field of gas ring calibration boxes, specifically a gas ring calibration box. Background Technology

[0002] In modern industrial production and daily life, the widespread use of combustible gases brings convenience but also potential safety risks. Once a combustible gas leaks and its concentration reaches a certain threshold, it can easily trigger serious accidents such as explosions and fires, posing a significant threat to people's lives and property. Therefore, combustible gas detectors, as key equipment for preventing such accidents, require extremely high accuracy and reliability. The gas ring calibration chamber was developed to address this need. It is primarily used for performance evaluation and calibration of combustible gas detectors. By simulating different gas environments and operating conditions, it tests various performance indicators of the detectors to ensure stable and accurate operation in practical applications.

[0003] In existing technologies, the working process of a gas annular calibration chamber is roughly as follows: using an annular sealed structure and gas distribution equipment, combustible gases of different concentrations are introduced into the chamber to simulate real gas leak scenarios. Simultaneously, some devices can control environmental parameters such as temperature, humidity, and wind speed within the chamber to comprehensively test the performance of combustible gas detectors under various complex environments. However, current performance testing of combustible gas detectors within an annular calibration chamber typically involves fixing the detector at a specific detection position. This traditional method has several drawbacks. Firstly, gas flow within the annular chamber is complex, with uneven distribution of gas concentration and flow velocity at different locations. Fixing the detector in only one place cannot fully assess its gas detection performance in multi-directional environments, resulting in an incomplete and inaccurate evaluation of detector performance, failing to accurately reflect its working state in real-world complex environments. For example, in some practical applications, the location and direction of combustible gas leaks are uncertain. If the detector performs well only in one direction but poorly in others, it may fail to detect leaked gas promptly and accurately during actual use, thus creating safety hazards.

[0004] On the other hand, during the detection process, the continuous introduction of combustible gas generates airflow impact within the chamber. Existing detector fixing methods are often not secure enough, and loosening can occur under prolonged airflow. Once a detector becomes loose, its detection position and angle change, leading to data deviations. This not only affects the accurate assessment of detector performance but also causes unqualified detectors to be mistakenly identified as qualified and put into use, or requires unnecessary adjustments and repairs to qualified detectors, resulting in wasted resources. Moreover, in the detection of toxic and hazardous combustible gases, detection deviations caused by detector loosening can even lead to serious safety accidents with unimaginable consequences. In conclusion, existing gas ring calibration chambers have significant shortcomings in their methods for detecting combustible gas detectors and urgently need improvement.

[0005] Therefore, we proposed a gas-fired annular calibration box to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the shortcomings of the prior art, this utility model provides a gas annular calibration box to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a gas annular calibration box, including a calibration box, a detector placement module is provided on the calibration box, a support plate is fixedly connected to the concave surface of the detector placement module, a screw is fixedly connected to the support plate through a motor, and a moving block is threadedly connected to the screw.

[0010] Preferably, a connecting rod is rotatably connected to the movable block, and a column rod is sleeved at the end of the connecting rod away from the movable block. A rotating disk is fixedly connected to the top surface of the column rod.

[0011] Preferably, a base plate is fixedly connected to the upper surface of the rotating disk, and a protective cover is fixedly connected to the base plate.

[0012] Preferably, the detector placement module has a through square slot, an extension rod is inserted into the square slot, the extension rod is fixedly connected to the moving block, an adjustment cavity column is fixedly connected to the top of the extension rod, and a spring is fixedly connected inside the adjustment cavity column.

[0013] Preferably, the outer end of the spring is fixedly connected to a horizontal sliding rod, the horizontal sliding rod is movably inserted into the adjusting cavity column, and the outer end of the horizontal sliding rod is fixedly connected to an arc-shaped locking block.

[0014] Preferably, the extension rod is slidably adapted to the square through groove.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a gas annular calibration box, which has the following beneficial effects:

[0017] 1. The design of the angle adjustment component inside the device brings the following benefits to the overall operation:

[0018] Improving the comprehensiveness and accuracy of detection: Existing technologies fix the detector in a single position, making it difficult to capture the uneven gas concentration distribution within the annular chamber. The adjustable angle design allows the detector to contact the delivered gas at different positions during detection, simulating the complex scenario of combustible gas leaking from various directions in real-world applications. For example, by sequentially adjusting the detector to different angles such as 0°, 90°, and 180°, the detector's response performance to the gas in various orientations can be accurately obtained, avoiding performance misjudgments caused by a single detection orientation. This makes the evaluation results closer to the detector's performance in real-world environments, effectively improving the comprehensiveness and accuracy of detection.

[0019] Improved detection efficiency and adaptability: The new design can meet the needs of different models and detection requirements of combustible gas detectors. When testing various types of detectors, there is no need to frequently change the fixing device; different detection requirements can be quickly adapted simply by adjusting the angle, saving detection preparation time. At the same time, the detector angle can be flexibly adjusted according to specific detection standards and simulated scenarios, improving the adaptability of the gas ring calibration box to diverse detection tasks and significantly enhancing overall detection efficiency.

[0020] 2. Through the design of the auxiliary fixing component, this utility model can bring the following benefits to the overall operation:

[0021] Significantly enhanced stability: Traditional fixing methods struggle to ensure detector stability when faced with airflow impacts within the enclosure; however, the newly added auxiliary fixing device, through the coordinated action of multiple fixing structures, can provide all-around stability for the detector; this design employs a symmetrical snap-fit ​​fixing method with arc-shaped blocks, which can effectively prevent the relevant components fixing the detector from loosening or shifting even in strong airflow environments, ensuring that the detector maintains a fixed position and angle throughout the entire detection process, laying a solid foundation for accurate detection;

[0022] Significantly improve detection accuracy: The positional stability of the detector directly affects the accuracy of the detection data; the auxiliary fixing device can eliminate detection errors caused by detector loosening, ensuring that the detector sensing surface and the gas maintain a constant relative position and angle relationship; during the detection process, the gas acts on the detector in a stable manner, and its detection data will not fluctuate due to position changes, making the detection results more accurate and reliable, further reducing the error range, helping to more accurately evaluate the detector's performance, avoiding misjudgments caused by errors, and improving the accuracy of product quality control. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the main body of this utility model;

[0024] Figure 2 This is a structural diagram of the detector placement module in this utility model;

[0025] Figure 3 The following are structural diagrams of the base plate, protective cover, and arc-shaped locking block of this utility model;

[0026] Figure 4 This is a three-dimensional view of the detector's orientation adjustment state in this utility model;

[0027] Figure 5 This is a bottom view of the detector's azimuth adjustment state in this utility model;

[0028] Figure 6 The diagram shows the structure of the protective cover and the arc-shaped locking block in this utility model.

[0029] In the picture:

[0030] 1. Calibration box; 2. Detector placement module; 3. Support plate; 4. Screw; 5. Moving block; 6. Connecting rod; 7. Column rod; 8. Rotating disk; 9. Base plate; 10. Protective cover; 11. Square through slot; 12. Extension rod; 13. Adjustment cavity column; 14. Spring; 15. Horizontal movement rod; 16. Arc-shaped locking block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0033] Example

[0034] Please refer to Figures 1 to 6 As shown:

[0035] A gas ring calibration box includes a calibration box 1, a detector placement module 2 on the calibration box 1, a support plate 3 fixedly connected to the concave surface of the detector placement module 2, a screw 4 fixedly connected to the support plate 3 via a motor, a movable block 5 threadedly connected to the screw 4, a connecting rod 6 rotatably connected to the movable block 5, a column rod 7 sleeved at the end of the connecting rod 6 away from the movable block 5, a rotating disk 8 fixedly connected to the top surface of the column rod 7, a base plate 9 fixedly connected to the upper surface of the rotating disk 8, and a fixedly connected cover on the base plate 9. The protective cover 10 and the detector placement module 2 have a through square slot 11. An extension rod 12 is inserted into the square slot 11. The extension rod 12 is fixedly connected to the moving block 5. An adjustment cavity column 13 is fixedly connected to the top of the extension rod 12. A spring 14 is fixedly connected to the adjustment cavity column 13. A horizontal moving rod 15 is fixedly connected to the outer end of the spring 14. The horizontal moving rod 15 is movably inserted into the adjustment cavity column 13. An arc-shaped locking block 16 is fixedly connected to the outer end of the horizontal moving rod 15. The extension rod 12 and the square slot 11 are slidably adapted to each other.

[0036] in:

[0037] Detector placement module 2 is used to place combustible gas detectors.

[0038] Screw 4 is driven by a motor; moving block 5 is adapted to screw 4.

[0039] A combustible gas detector is fixedly connected to the base plate 9.

[0040] The square through slot 11 is used to provide a motion track for the movement of the extension rod 12.

[0041] Spring 14 is used to assist the arc-shaped locking block 16 in abutting the protective cover 10 via the horizontal sliding rod 15.

[0042] Working principle:

[0043] In use, the device can adjust the angle of the gas detector fixedly connected to the base plate 9 according to the specific detection. Specifically, the screw 4 on the support plate 3 is rotated by the main controller. As the screw 4 rotates, the moving block 5 will move laterally. During this process, the moving block 5 will push or pull the rotating disk 8 with the assistance of the column rod 7 through the connecting rod 6. Since the column rod 7 is fixed at the non-axial position of the rotating disk 8, the rotating disk 8 will rotate during the above process. When the rotating disk 8 rotates, the rotating disk 8 will rotate the base plate 9 fixedly connected to it, thereby rotating the gas detector on it at a certain angle.

[0044] Furthermore, in the above process, the adjusting cavity column 13, which is fixedly connected to the moving block 5 via the extension rod 12, provides motion guidance for the transverse moving rod 15 that moves laterally within it. Regardless of whether the adjusting cavity column 13 moves or not, the arc-shaped locking block 16 on the transverse moving rod 15, which is fixedly connected to the spring 14, will abut against and fit against the protective cover 10 under the auxiliary guidance of the adjusting cavity column 13, thereby preventing the airflow from impacting the relevant fixed components of the detector and causing loosening. Through the above design, it is possible to ensure the performance detection of the detector from multiple angles and avoid the adverse effects of fixation on performance detection.

[0045] Please refer to the above work process. Figures 1 to 6 .

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A gas ring calibration box, comprising a calibration box (1), characterized in that: The calibration box (1) is provided with a detector placement module (2). A support plate (3) is fixedly connected to the concave surface of the detector placement module (2). A screw (4) is fixedly connected to the support plate (3) via a motor. A moving block (5) is threadedly connected to the screw (4).

2. The gas ring calibration box according to claim 1, characterized in that: A connecting rod (6) is rotatably connected to the movable block (5). A column rod (7) is sleeved on one end of the connecting rod (6) away from the movable block (5). A rotating disk (8) is fixedly connected to the top surface of the column rod (7).

3. A gas-fired annular calibration box according to claim 2, characterized in that: A base plate (9) is fixedly connected to the upper surface of the rotating disk (8), and a protective cover (10) is fixedly connected to the base plate (9).

4. A gas ring calibration box according to claim 1, characterized in that: The detector placement module (2) has a through square slot (11) with an extension rod (12) inserted into it. The extension rod (12) is fixedly connected to the moving block (5). An adjustment cavity column (13) is fixedly connected to the top of the extension rod (12). A spring (14) is fixedly connected inside the adjustment cavity column (13).

5. A gas-fired annular calibration box according to claim 4, characterized in that: The outer end of the spring (14) is fixedly connected to a transverse rod (15), which is movably inserted into the adjusting cavity column (13). The outer end of the transverse rod (15) is fixedly connected to an arc-shaped locking block (16).

6. A gas-fired annular calibration box according to claim 5, characterized in that: The extension rod (12) is slidably adapted to the square through groove (11).

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