Air guide device for gas monitor
By designing an air guiding device for gas monitors, the gas is filtered by a fan and filter plates before detection, which solves the problem of inaccurate detection caused by direct detection without filtration. This achieves uniform gas distribution and convenient filter plate replacement, thus improving detection accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU JINBANGNAI TECHNOLOGY CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing gas detectors directly detect gases before they are filtered, resulting in inaccurate test results.
An air flow guiding device for a gas monitor has been designed, comprising a housing, an air inlet box, a guide plate, a filter plate, and a fan. The fan draws in gas, which is then filtered by the air inlet box, the guide plate, and the filter plate, resulting in a uniform distribution of the gas near the gas sensor. The filter plate can also be easily replaced.
This technology enables the detection of filtered gases, improving the accuracy of test results and facilitating the cleaning and replacement of filter plates.
Smart Images

Figure CN224247688U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of climate detection technology, and in particular to an air diversion device for a gas monitor. Background Technology
[0002] A gas detector is a precision instrument specifically designed to detect the concentration or type of a specific gas in an environment. Its core function is to provide real-time, accurate gas concentration data to prevent potential hazards and ensure workplace and personnel safety. The airflow guiding device used in a gas detector is designed to guide and control airflow, ensuring that the gas accurately enters the detector for detection.
[0003] A search revealed Chinese Patent Publication No. CN215066538U, which discloses a gas detector, including a housing and a mounting shell disposed within the housing. The mounting shell contains an air inlet chamber, a conical guide block, and a detection chamber. The detection chamber has a fixed column at its center and multiple gas sensors arranged circumferentially around the fixed column. The guide block is a hollow structure with an opening, and its sidewalls have multiple arc-shaped guide holes. The fixed column has a fixing hole at one end near the air inlet chamber that matches the conical tip of the guide block. The portion of the guide block near the tip is positioned at the gap between the gas sensor and the fixed column.
[0004] In the above-mentioned utility model, the air inlet chamber and the detection chamber are separated by the flow guide block, and the gas to be detected is fully directed to the inside of the detection chamber to fully react with the gas sensor, thus ensuring detection accuracy. However, in actual use, if the gas to be detected is not filtered before detection, the detection results may not be accurate. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an air guiding device for a gas monitor, which aims to improve the problem of not filtering the gas to be tested before detection.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an air guiding device for a gas monitor, comprising a housing, an air inlet box on the outer wall of the housing, an air inlet inside the housing, a guide plate fixedly connected inside the housing, a guide box fixedly connected inside the guide plate, a support plate fixedly connected inside the housing, a filter plate slidably connected inside the support plate, a pull plate slidably connected inside the support plate, a limit post fixedly connected to the outer wall of the pull plate, a first spring slidably connected to the outer wall of the limit post, one end of the first spring fixedly connected to the inside of the support plate, the other end of the first spring fixedly connected to the outer wall of the pull plate, a locking post fixedly connected to the outer wall of the pull plate, the outer wall of the locking post slidably connected to the inside of the support plate and the filter plate, an air outlet inside the housing, a fan on the outer wall of the housing, and a storage assembly on the outer wall of the support plate.
[0007] The above technical solution involves: drawing gas into the air inlet box via a fan; guiding the gas flow through the air inlet, guide plate, and guide box; filtering the gas to be tested via a filter plate; adjusting the position of the clamping pin by pulling the pull plate; and removing the filter plate by sliding the clamping pin out of the filter plate.
[0008] As a further description of the above technical solution:
[0009] The storage assembly includes a connecting frame, the outer wall of which is fixedly connected to the outer wall of a support plate, a mounting plate fixedly connected to the outer wall of the connecting frame, the outer wall of the mounting plate fixedly connected to the inside of the housing, a door slidably connected to the outer wall of the housing, and a control system installed inside the housing.
[0010] The above technical solution allows the connecting frame to connect and fix the support plate and the mounting plate, the mounting plate to place items, and the door to seal and protect the interior of the box.
[0011] As a further description of the above technical solution:
[0012] The upper surface of the support plate is provided with a data acquisition plate, and the upper surface of the data acquisition plate is provided with multiple gas sensors.
[0013] The above technical solution provides support for the acquisition plate, which in turn allows for gas collection, and multiple gas sensors enable comprehensive gas detection.
[0014] As a further description of the above technical solution:
[0015] A push rod is slidably connected inside the support plate, and a second spring is fixedly connected to the top end of the push rod. The outer wall of the second spring is fixedly connected to the inside of the support plate.
[0016] Through the above technical solution: the support plate supports the push rod, the second spring is squeezed due to the sliding of the push rod, and the second spring plays the role of rebound and reset, which can push the push rod to slide in the opposite direction.
[0017] As a further description of the above technical solution:
[0018] The outer wall of the push rod is fixedly connected to a sliding plate, the outer wall of the sliding plate is slidably connected to the inside of the support plate, and the inside of the sliding plate is rotatably connected to a first rotating shaft.
[0019] Through the above technical solution: the push rod fixes the slide plate, and the slide plate slides synchronously inside the support plate as the push rod slides. The slide plate supports the first rotating shaft and can drive the first rotating shaft to slide at the same time.
[0020] As a further description of the above technical solution:
[0021] A rotating rod is fixedly connected to the outer wall of the first rotating shaft, and a second rotating shaft is fixedly connected to the inside of the rotating rod.
[0022] The above technical solution allows the rotating rod to support the first rotating shaft, and the sliding of the first rotating shaft allows the rotating rod to rotate. At the same time, the rotating rod also serves to fix the second rotating shaft.
[0023] As a further description of the above technical solution:
[0024] The outer wall of the second rotating shaft is rotatably connected to a slider, and the outer wall of the slider is slidably connected to the inside of the support plate.
[0025] Through the above technical solution: the slider supports the second rotating shaft, and the sliding of the second rotating shaft can drive the slider to slide stably inside the support plate.
[0026] As a further description of the above technical solution:
[0027] The outer wall of the slider is fixedly connected to a locking block, and the outer wall of the locking block is slidably connected to the inside of the support plate and the acquisition plate.
[0028] The above technical solution involves using a slider to fix the card block. When the slider slides, it can drive the card block to slide synchronously. By sliding the card block into or out of the acquisition plate, the acquisition plate can be installed or removed.
[0029] This utility model has the following beneficial effects:
[0030] 1. In this utility model, starting the fan causes the gas to be tested to pass through the air inlet box, air inlet, guide plate, guide box and filter plate and then be discharged through the air outlet. Pulling the pull plate can remove the filter plate from the support plate, so as to guide the gas flow so that it is evenly distributed near the gas sensor after filtration and facilitate the removal of the filter plate for cleaning and replacement.
[0031] 2. In this utility model, by pushing the push rod, the acquisition plate and the support plate are installed or disassembled through the cooperation between the second spring, the sliding plate, the first rotating shaft, the rotating rod, the second rotating shaft, the slider and the locking block, so as to facilitate the installation and use of the acquisition plate and also facilitate its removal for separate maintenance. Attached Figure Description
[0032] Figure 1 This is a perspective view of an air guiding device for a gas monitor proposed in this utility model;
[0033] Figure 2 This is a partial structural diagram of the fan of an air guiding device for a gas monitor proposed in this utility model;
[0034] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the support plate of the air guiding device for a gas monitor proposed in this utility model;
[0035] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the data acquisition plate of an air flow guiding device for a gas monitor proposed in this utility model.
[0036] Legend:
[0037] 1. Housing; 2. Air inlet box; 3. Air inlet; 4. Flow guide plate; 5. Flow guide box; 6. Support plate; 7. Filter plate; 8. Pull plate; 9. Limiting post; 10. First spring; 11. Locking post; 12. Air outlet; 13. Fan; 14. Storage assembly; 1401. Connecting frame; 1402. Mounting plate; 15. Data acquisition plate; 16. Push rod; 17. Second spring; 18. Slide plate; 19. First rotating shaft; 20. Rotating rod; 21. Second rotating shaft; 22. Slider; 23. Locking block; 24. Control system; 25. Housing door; 26. Gas sensor. Detailed Implementation
[0038] 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.
[0039] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides an air guiding device for a gas monitor, comprising a housing 1, an air inlet box 2 on the outer wall of the housing 1, an air inlet 3 inside the housing 1, a guide plate 4 fixedly connected inside the housing 1, a guide box 5 fixedly connected inside the guide plate 4, a support plate 6 fixedly connected inside the housing 1, a filter plate 7 slidably connected inside the support plate 6, a pull plate 8 slidably connected inside the support plate 6, a limit post 9 fixedly connected to the outer wall of the pull plate 8, a first spring 10 slidably connected to the outer wall of the limit post 9, one end of the first spring 10 fixedly connected to the inside of the support plate 6, the other end of the first spring 10 fixedly connected to the outer wall of the pull plate 8, a locking post 11 fixedly connected to the outer wall of the pull plate 8, the outer wall of the locking post 11 slidably connected to the inside of the support plate 6 and the filter plate 7, an air outlet 12 inside the housing 1, a fan 13 on the outer wall of the housing 1, and a storage assembly 14 on the outer wall of the support plate 6.
[0040] Specifically, both sides of the housing 1 are equipped with an air inlet box 2 and a fan 13. The fan 13 draws in the gas to be tested from the outside. The housing 1 fixes the air inlet box 2, allowing the outside gas to be drawn into its interior. The housing 1 has an air inlet 3 of the same size as the inside of the air inlet box 2, allowing the gas to enter the guide plate 4. The guide plate 4 fixes the guide box 5, allowing the gas to enter its interior. The fan 13 draws in the gas, causing it to flow upwards and pass through the filter plate 7. This allows the gas to be tested to be distributed around the collection plate 15 and the gas sensor 26 for detection. After detection, the gas continues to flow upwards to the outlet 12, where it is discharged. Inside the housing 1, the filter plate 7 filters impurities from the gas being tested, making the test data more accurate. The housing 1 fixes the support plate 6, which in turn supports the pull plate 8. The pull plate 8 fixes the limiting post 9. When the filter plate 7 needs to be disassembled, pulling the pull plate 8 causes the limiting post 9 to slide simultaneously. The first spring 10 is located between the pull plate 8 and the support plate 6 and is compressed by the sliding of the pull plate 8. The pull plate 8 fixes the locking post 11, and sliding the pull plate 8 causes the locking post 11 to slide synchronously. When the locking post 11 is locked inside the filter plate 7, it limits and fixes the position between the filter plate 7 and the support plate 6. Conversely, when the locking post 11 slides out of the filter plate 7, the filter plate 7 can be pulled out for cleaning.
[0041] Reference Figure 1 and Figure 2The storage component 14 includes a connecting frame 1401, the outer wall of the connecting frame 1401 is fixedly connected to the outer wall of the support plate 6, the outer wall of the connecting frame 1401 is fixedly connected to an mounting plate 1402, the outer wall of the mounting plate 1402 is fixedly connected to the inside of the box 1, the outer wall of the box 1 is slidably connected to a box door 25, and the inside of the box 1 is equipped with a control system 24.
[0042] Specifically, the connecting frame 1401 connects the support plate 6 and the mounting plate 1402. The housing 1 fixes both the support plate 6 and the mounting plate 1402. The mounting plate 1402 can be used for placing items. The door 25 can seal and protect the interior of the housing 1. The control system 24 can analyze and store the detection data.
[0043] Reference Figure 2 and Figure 4 A collection plate 15 is provided on the upper surface of the support plate 6, and multiple gas sensors 26 are provided on the upper surface of the collection plate 15. A push rod 16 is slidably connected inside the support plate 6, and a second spring 17 is fixedly connected to the top end of the push rod 16. The outer wall of the second spring 17 is fixedly connected to the inside of the support plate 6. A slide plate 18 is fixedly connected to the outer wall of the push rod 16, and the outer wall of the slide plate 18 is slidably connected to the inside of the support plate 6. A first rotating shaft 19 is rotatably connected inside the slide plate 18. A rotating rod 20 is fixedly connected to the outer wall of the first rotating shaft 19, and a second rotating shaft 21 is fixedly connected inside the rotating rod 20. A slider 22 is rotatably connected to the outer wall of the second rotating shaft 21, and the outer wall of the slider 22 is slidably connected to the inside of the support plate 6. A locking block 23 is fixedly connected to the outer wall of the slider 22, and the outer wall of the locking block 23 is slidably connected to the inside of the support plate 6 and the collection plate 15.
[0044] Specifically, the support plate 6 supports the acquisition plate 15, through which the gas to be detected can be collected. The acquisition plate 15 also supports the gas sensor 26. The arrangement of multiple gas sensors 26 allows for sufficient data collection and sensing of the gas to be detected. The support plate 6 also supports the push rod 16, which supports and fixes the sliding plate 18. Pushing the push rod 16 allows the sliding plate 18 to slide stably inside the support plate 6. The second spring 17 is located between the push rod 16 and the support plate 6 and will be compressed due to the sliding of the push rod 16. The rotating shaft 19 connects the sliding plate 18 and the rotating rod 20, allowing the rotating rod 20 to rotate inside the support plate 6. The second rotating shaft 21 connects the rotating rod 20 and the slider 22, allowing the slider 22 to slide inside the support plate 6. The slider 22 fixes the locking block 23, thus allowing the locking block 23 to slide synchronously inside the support plate 6 and the acquisition plate 15. When the locking block 23 is locked inside the acquisition plate 15, it can limit and fix the position of the acquisition plate 15 and the support plate 6. Conversely, when the locking block 23 slides out of the acquisition plate 15, the acquisition plate 15 can be removed from the support plate 6 for maintenance.
[0045] Working principle: When the device is needed, the fan 13 can draw in outside air. The outside air enters the interior of the guide plate 4 through the air inlet box 2 and the air inlet 3. The guide plate 4 is connected to the guide box 5. The air enters the interior of the guide box 5 and flows upward. The air is filtered by the filter plate 7 and then diffused to the position of the gas sensor 26 for detection. The gas sensor 26 transmits the data to the control system 24. The detected gas continues to rise and is discharged through the outlet 12. When the filter plate 7 needs to be cleaned or replaced, simply push the pull plate 8. The pull plate 8 will drive the limit post 9 to slide and squeeze the first spring 10 during the sliding process. When the pull plate 8 slides, it will also drive the locking post 11 to slide out of the interior of the filter plate 7. At this time, the filter plate 7 can be pulled out from the interior of the support plate 6. This achieves the effect of guiding the gas flow, filtering it, and distributing it evenly near the gas sensor 26, and making it easy to pull out the filter plate 7 for cleaning and replacement, thus ensuring the accuracy of the detection.
[0046] When installation and maintenance of the data acquisition plate 15 and gas sensor 26 are required, simply push the push rod 16. The push rod 16 will cause the slide plate 18 and the first rotating shaft 19 to slide inside the support plate 6, and during the sliding process, it will compress the second spring 17. When the first rotating shaft 19 slides, it will drive the rotating rod 20 to rotate. During the rotation of the rotating rod 20, it will pull the slider 22 to slide through the second rotating shaft 21. The slider 22 will drive the locking block 23 to slide at the same time. At this time, the data acquisition plate 15 can be aligned with the support plate 6. Release the push rod 16. The rebound action of the second spring 17 can push the locking block 23 to slide in the opposite direction, so that it is locked inside the data acquisition plate 15, limiting and fixing the position of the support plate 6 and the data acquisition plate 15. This achieves the effect of facilitating the installation and use of the data acquisition plate 15 and also facilitating its individual maintenance. This device can not only guide the gas flow so that it is filtered and evenly distributed near the gas sensor 26 and facilitate the removal of the filter plate 7 for cleaning and replacement, ensuring the accuracy of the detection, but also achieve the effect of facilitating the installation and use of the data acquisition plate 15 and facilitating its individual maintenance.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An airflow guiding device for a gas monitor, comprising a housing (1), characterized in that: An air inlet box (2) is provided on the outer wall of the box body (1). An air inlet (3) is provided inside the box body (1). A guide plate (4) is fixedly connected inside the box body (1). A guide box (5) is fixedly connected inside the guide plate (4). A support plate (6) is fixedly connected inside the box body (1). A filter plate (7) is slidably connected inside the support plate (6). A pull plate (8) is slidably connected inside the support plate (6). A limit post (9) is fixedly connected to the outer wall of the pull plate (8). The outer wall of the limit post (9) is slidably connected. A first spring (10) is connected, one end of which is fixedly connected to the inside of the support plate (6), and the other end of which is fixedly connected to the outer wall of the pull plate (8). A locking post (11) is fixedly connected to the outer wall of the pull plate (8). The outer wall of the locking post (11) is slidably connected to the inside of the support plate (6) and the filter plate (7). An air outlet (12) is opened inside the box (1). A fan (13) is provided on the outer wall of the box (1). A storage assembly (14) is provided on the outer wall of the support plate (6).
2. The air guiding device for a gas monitor according to claim 1, characterized in that: The storage assembly (14) includes a connecting frame (1401), the outer wall of which is fixedly connected to the outer wall of the support plate (6), the outer wall of which is fixedly connected to an mounting plate (1402), the outer wall of which is fixedly connected to the inside of the box (1), the outer wall of which is slidably connected to a door (25), and the inside of the box (1) is equipped with a control system (24).
3. The air guiding device for a gas monitor according to claim 1, characterized in that: The upper surface of the support plate (6) is provided with a collection plate (15), and the upper surface of the collection plate (15) is provided with a plurality of gas sensors (26).
4. The air guiding device for a gas monitor according to claim 1, characterized in that: A push rod (16) is slidably connected inside the support plate (6), and a second spring (17) is fixedly connected to the top of the push rod (16). The outer wall of the second spring (17) is fixedly connected inside the support plate (6).
5. An air guiding device for a gas monitor according to claim 4, characterized in that: The outer wall of the push rod (16) is fixedly connected to a slide plate (18), the outer wall of the slide plate (18) is slidably connected to the inside of the support plate (6), and the inside of the slide plate (18) is rotatably connected to a first rotating shaft (19).
6. An air guiding device for a gas monitor according to claim 5, characterized in that: A rotating rod (20) is fixedly connected to the outer wall of the first rotating shaft (19), and a second rotating shaft (21) is fixedly connected to the inside of the rotating rod (20).
7. An airflow guiding device for a gas monitor according to claim 6, characterized in that: The outer wall of the second rotating shaft (21) is rotatably connected to a slider (22), and the outer wall of the slider (22) is slidably connected to the inside of the support plate (6).
8. An air guiding device for a gas monitor according to claim 7, characterized in that: The outer wall of the slider (22) is fixedly connected to a locking block (23), and the outer wall of the locking block (23) is slidably connected inside the support plate (6) and the acquisition plate (15).